SAND STORAGE DEVICE

Description

TECHNICAL FIELD

The invention relates to the technical field of sandblasting and sand storage equipment, in particular to a sand storage device.

BACKGROUND OF THE PRESENT INVENTION

In the prior art, such as China Invention Patent Application Document, Publication No. CN105171617A, discloses a sandblasting device for glass sandblasting, which comprises a sand stirring mechanism, a sandblasting mechanism, a collecting mechanism and a conveying mechanism, wherein the sandblasting mechanism is located between the sand stirring mechanism and the collecting mechanism, the conveying mechanism is located in the sandblasting mechanism. The sand stirring mechanism comprises a hopper, a storage chamber and a stirring shaft. A closed valve is connected between the hopper and the storage chamber, and a stirring shaft is arranged in the storage chamber. The sandblasting mechanism comprises a sandblasting chamber, a spray gun, a material inlet and a material outlet; the conveying mechanism comprises a first conveying mechanism and a second conveying mechanism; the turnover device comprises a rotating disc, a fixed box body and a clamping plate; the collecting mechanism comprises a collecting hopper, a sand pump, a collecting chamber and a sand leakage disc; the collecting hopper and the sand pump are located in the collecting chamber; the top end of the collecting chamber is provided with a sand leakage disc which is connected with the sandblasting chamber.

Based on the above, in the prior art, a closed valve is used to connect the hopper with the storage chamber. During sandblasting, the closing valve is closed. When the hopper adds sand to the storage chamber, the closing valve is in the open state. The technical problem of this existing valve body is that it needs to be connected to an additional air source or power supply, and the procurement cost of the valve body is high. The valve body needs to be individually controlled to open or close, which needs further improvement.

SUMMARY OF PRESENT INVENTION

The present invention aims at solving at least one of the technical problems existing in the prior art. Therefore, the invention provides a sand storage device with the second port automatically opened and closed.

A sand storage device designed for this purpose comprises a sand storage tank, wherein the sand storage tank is provided with a sand inlet and a sand outlet; the sand inlet is provided with a sand adding valve; the sand adding valve comprises a valve body connected with the sand inlet; the valve body is provided with a first port and a second port; the first port is connected with the sand inlet; and a deformation sealing sheet for sealing the second port is arranged in the valve body. The deformation sealing sheet is connected with a counterweight block, the sand adding valve is provided with an air inlet nozzle. The air inlet nozzle is located below the counterweight block and the air outlet end is arranged towards the counterweight block;

The sand inlet is connected with a sand adding tank;

The counterweight block is configured to drive the deformation sealing sheet to deform downwards, so that the second port is in an open state and connected with the inside of the valve body;

The air inlet nozzle is configured such that when the air inlet nozzle is in air intake state, the compressed air output from the air outlet end of the air inlet nozzle drives the counterweight block and the deformation sealing sheet to engage with the valve body upwards to seal the second port.

Preferably, the valve body is connected with a fixed piece, which is provided with a deformation connector to connect with the deformation sealing sheet.

Preferably, the valve body is provided with an annular fixing groove, and the fixed piece is fixedly arranged in the annular fixing groove.

Preferably, the valve body comprises a first connector, a second connector and a third connector which are sequentially connected from bottom to top, wherein the first port is arranged on the first connector and the second port is arranged on the third connector, and the upper surface of the deformation sealing sheet forms a seal when being attached to the lower surface of the third connector.

Preferably, the annular fixing groove is arranged between the second connector and the third connector.

Preferably, the first connector, the second connector and the third connector are connected by a plurality of bolts in turn;

The fixing piece is provided with a fixing hole, and the bolt passes through the fixing hole.

Preferably, the upper surface of the deformation sealing sheet is provided with a sealing convex ring.

Preferably, the sand adding tank is located above the sand storage tank, and the sand adding tank is connected to the sand inlet with a pipe fitting.

Preferably, the sand storage tank is respectively provided with a pressure relief valve and a safety valve.

Preferably, the sand storage tank is provided with a chassis.

Compared with the prior art, the invention uses the deformation sealing sheet and the counterweight block together. Under the action of gravity, the deformation sealing sheet deforms and moves downwards in a natural state, so that the second port is in an open state. In this state, sand in the sand adding tank can enter the sand storage tank through the second port, the valve body and the sand adding port. When sandblasting, the external compressed air is input into the valve body from the gas nozzle. Under the action of the compressed air, the counterweight block and the deformation sealing sheet move upward to be combined with the valve body, so that the second port is closed, that is, the sealing is completed. According to the invention, the compressed air originally required for sandblasting is used to drive the deformation sealing sheet to seal the second port, thereby solving the problems of high control cost and high valve procurement cost caused by pneumatic valves or electric inventions that require separate control in the prior art. The invention has the effects of simple control structure and low manufacturing cost.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the first schematic diagram of the cross-sectional structure of the present invention;

FIG. 2 is the second schematic diagram of the cross-sectional structure of the present invention;

FIG. 3 is an enlarged structural schematic view at A in FIG. 2;

FIG. 4 is a schematic diagram of the three-dimensional structure of the present invention;

FIG. 5 is a schematic diagram of the three-dimensional structure of the deformation sealing sheet.

DETAILED DESCRIPTION OF THE EMBODIMENT'S

The invention will be further described with the attached drawings and examples.

Referring to FIGS. 1-5, a sand storage device comprises a sand storage tank 10, wherein the sand storage tank 10 is provided with a sand inlet 110 and a sand outlet 120; the sand inlet 110 is provided with a sand adding valve 20, which comprises a valve body 200 connected with the sand inlet 110; the valve body 200 is provided with a first port 210 and a second port 220; The first port 210 is connected to the sand inlet 110. The valve body 200 is internally provided with a deformation sealing sheet 230 for sealing the second port 220, the deformation sealing sheet 230 is connected with a counterweight block 240. The sand adding valve 20 is provided with an air inlet nozzle 30, which is located below the counterweight block 240 with an air outlet end facing the counterweight block 240;

The second port 220 is connected with a sand adding tank 40;

The counterweight block 240 is configured to drive the deformation sealing sheet 230 to deform downward, so that the second port 220 is in an open state and connected with the inside of the valve body 200;

The air intake nozzle 30 is configured such that when the air intake nozzle 30 is in air intake state, the compressed air output from the air outlet end of the air intake nozzle 30 drives the counterweight block 240 and the deformation sealing sheet 230 to engage with the valve body 200 upwards to seal the second port 220.

Based on the above embodiment, the deformation sealing sheet works with the counterweight block. Under the natural state, the counterweight block and the deformation sealing sheet deform and move downwards under the action of gravity, so that the second port is in the open state. In this state, the sand in the sand adding tank can enter the sand storage tank through the second port, the valve body and the sand adding port.

In this embodiment, when sandblasting, external compressed air is input into the valve body from the gas nozzle, and under the action of the compressed air, the counterweight block and the deformation sealing sheet move upwards to engage with the valve body, so that the second port is sealed, that is, the sealing is completed.

According to the invention, the compressed air originally required for sand blasting is used to drive the deformation sealing sheet to close the second port, thereby solving the problems of high control cost and high valve procurement cost caused by pneumatic valves or electric inventions that require separate control in the prior art. The invention has the effects of simple control structure and low manufacturing cost.

Referring to FIGS. 3 and 5, the valve body 200 is connected with a fixed piece 250, and the fixed piece 250 is provided with a deformation connector 260 to connect with the deformation sealing sheet 230. The fixed piece 250 is a fixed device. With the weight of the counterweight block 240 or the drive of compressed air, the deformation sealing sheet 230 and the deformation connector 260 can swing up and down relative to the fixed piece 250, so as to open or close the second port 220.

Further, the diameter of the counterweight block 240 is greater than that of the second port 220. This design can realize that when the compressed air drives the counterweight block 230 and the deformation sealing sheet 230 to move upwards, the counterweight block 240 can drive the deformation sealing sheet 230 to closely adhere to the inner wall of the valve body 200 to prevent the deformation sealing sheet 230 from deforming upwards into the second port 220.

Referring to FIGS. 1 to 3, the valve body 200 is provided with an annular fixing groove 204, and the fixed piece 250 is fixedly arranged in the annular fixing groove 204.

Referring to FIGS. 1 to 3, the valve body 200 includes a first connector 201, a second connector 202, and a third connector 203 which are sequentially connected from bottom to top. The first port 210 is arranged on the first connector 201, and the second port 220 is arranged on the third connector 203. When the upper surface of the deformation sealing sheet 230 is attached to the lower surface of the third connector 203, a seal is formed.

Referring to FIGS. 1 to 3, the annular fixing groove 204 is arranged between the second connector 202 and the third connector 203.

Referring to FIG. 3, the first connector 201, the second connector 202 and the third connector 203 are connected by a plurality of bolts 205.

Referring to FIGS. 3 and 5, the fixed piece 250 is provided with a fixing hole 251, and the bolt 205 passes through the fixing hole 251.

Referring to FIGS. 3 and 5, the upper surface of the deformation sealing sheet 230 is provided with a sealing convex ring 231. The arrangement of the sealing convex ring 231 can strengthen the joint sealing between the deformation sealing sheet 230 and the lower surface of the third connector 203, thus effectively improving the sealing performance.

Referring to FIG. 4, the sand adding tank 40 is located above the sand storage tank 10, and the sand adding tank 40 is connected to the second port 220 with a pipe fitting 50.

Referring to FIG. 4, the sand storage tank 10 is respectively provided with a pressure relief valve 60 and a safety valve 70.

The function of the safety valve 70 is to open and release the pressure when the internal pressure of the sand storage tank 10 is greater than the threshold value of the safety valve 70, thereby ensuring safety.

The function of the pressure relief valve 60 is that when sand is added, the pressure relief valve 60 is opened, so that the inside of the sand storage tank 10 is connected with the outside. In this state, the gas nozzle 30 is in a closed state, and the deformation sealing sheet works with the counterweight block. In a natural state, the counterweight block and the deformation sealing sheet are deformed and move downwards under the action of gravity, so that the second port is in an open state. In this state, the sand in the sand adding tank can enter the sand storage tank through the second port, the valve body and the sand adding port.

During sandblasting, the pressure relief valve 60 is closed and the gas nozzle 30 is opened. The compressed air input from the gas nozzle 30 drives the counterweight block 240 and the deformation sealing sheet 230 to adhere to the valve body 200 upwards to form a seal, and the input compressed air drives the sand to be output from the sand outlet 120 for use.

Referring to FIGS. 1 and 2, the sand storage tank 10 is provided with a chassis 100.

In the description of the present invention, it should be understood that the azimuth or positional relationship indicated by the terms “center”, “longitudinal direction”, “transverse direction”, “length”, “width”, “thickness”, upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counter-clockwise” is based on the azimuth or positional relationship shown in the attached drawings. They are only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, so they cannot be understood as limiting the present invention. The terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the embodiments above, and what is described in the embodiments and descriptions above only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, there will be various changes and improvements in the present invention, which fall within the scope of the claimed invention. The scope of that present invention is defined by the attached claims and their equivalents.