Automatic expansion shower head for kitchen sink

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a faucet for kitchen sink, and more particularly to an automatic telescope shower head hidden at inside of faucet of kitchen sink.

2. Description of Prior Art

In accordance with the conventional technology, the most of the structure of the shower head located on the side of the kitchen sink is about showed in FIG. 1, in which the shower head 4′ is fixed on the tip end of the delivery hose 2′ that pull through the faucet 1′, and the shower head 4′ is exposed at outside in front of outlet of the faucet 1′ located on the top side of the kitchen sink, said delivery hose 2′ is attached with a balance weight 3′ hung over at the segment under the working top.

In idle, said shower head 4′ is drew under the weight force coming from the balance weight 3′ back clamped at the outside of the outlet of the faucet 1′; in using, just need to draw out the shower head 4′ so as to extend out from the faucet 1′ for use; after using, just need to let it free, the shower head 4′ loosed extra force is pulled back in the original position under the pulling force coming from the balance weight 3′.

For facilitating to drawing out, said shower head 4′ is designed to remain a portion extended out from the faucet 1′ in idle time, so that the volume of said faucet set becomes bigger than the expectation, meanwhile the exposed portion of the shower head 4′ is also damaged by striking.

Later, for solving the problem of said exposed shower head 4′, a faucet hidden shower head 4′ at inside came out, as shown in FIG. 2, the structures of said shower head 4′, delivery hose 2′ and balance weight 3′ are not changed in design, wherein said faucet 1′ has a bell mouth with a slot 11″ for hiding the shower head 4″ at inside, by means of a crowning button 41″ set upon the side trunk of the shower head 4″ catching in said slot 11″, shower head 4″ is located at the inside of the bell mouth of the faucet 1″.

But, in each using time, drawing out said shower head 4″ has to press down the button 41″ firstly so as to make it slide out from the catching slot 11″ facilitating to drawing the shower head 4″ to any where at will, so the excess operation puts the user into inconvenience; and after each use time, the user has to push the shower head 4″ into the bell mouth of the faucet 1″ with extra force so that the button 41″ is located in the end of the catching slot 11″, therefore, the excess operations are boring to the user.

This is the sake of discovering the present invention.

OBJECTS AND SUMMARY OF THE INVENTION

It is therefore a main object of the present invention to provide an automatic telescope shower head set for kitchen sink facilitating to using and reserving with smaller volume, and avoiding striking damage.

For achieving the above-mentioned object, the present invention provides an automatic telescope shower head set for kitchen sink typically comprised of a main body, a shower head and a restoring spring; wherein said main body has a fitting set upon the top end for connecting to the outlet end of a delivery hose, and a tube set upon the center; said shower head has a shroud tube built upon the top end for containing into the inside of the tube of the main body, cooperating to the delivery hose, the fitting, the tube and the shower head, to construct the water flowing channel, there are a pair of opposite a reversion fin and a crowned collar built upon the inside wall of the tube and the outside wall of the shroud tube respectively so that the both ends of the restoring spring touch against the opposite faces of said inversion fin and said crowned collar, thereby the restoring force of the restoring spring pushing the shroud tube up bringing the shower head to restore the original position, there are sealing loops set upon the contacting surfaces of each pair of adjacent components.

Said fitting and said main body can be molded individually into tow parts, and can be secured into one component via thread-joint, in the same way, said shroud tube and the shower head can be also molded tow parts independently, and can be connected together by securing connection facilitating to assembling and disassembling.

Said main body has a housing built on bottom downward for supplying a space containing the shower head moving down-up under the water pressure or the restoring spring working as sliding out or sliding back in original position.

Said fitting extends a guiding tube axially downward located at the inside of the tube of the main body, coordinating it, said shroud tube has an axial ring groove built on the circle wall for fitting on said guiding tube of said fitting in up-down moving connection.

As utilizing above-mentioned project, the present invention is at least comprised of said main body assembly and shower head assembly, by means of restoring spring set upon between them used for repositioning, so as combining the present invention into the faucet, when no water pressure exerting in, the shower head is pushed up at the home position by the restoring spring hiding into the faucet fully via the size control in design, so that the volume of the whole faucet is controlled into minimal level to prevent the shower head from striking damage, and facilitating to using and storing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a part cross-section view of the first prior art.

FIG. 2 is a part cross-section view of the second prior art.

FIG. 3 is a part cross-section view showing the idle state of the present invention.

FIG. 4 is a part cross-section view showing the using state of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to FIG. 3 and FIG. 4, the preferred embodiment of the present invention is set upon the tip end of the faucet 8. An automatic telescope shower head set for kitchen sink discovered by the present invention is typically comprised of a main body 4, a shower head 5 and a restoring spring 3.

Wherein, said main body 4 has a fitting 1 built upon the top end, for facilitating to assembling and disassembling, said fitting 1 and said main body 4 can be molded individually into tow parts, and can be secured into one component via thread-joint. Said fitting 1 is used for connecting to the outlet end of a delivery hose 6. Said main body 4 has a tube 41 formed at center.

Said shower head 5 has a shroud tube 2 built on the top end, for facilitating to assembling and disassembling, said shroud tube 2 and said shower head 5 can be also molded tow parts independently, and can be connected together by securing connection. Said shroud tube 2 is put into the inside of the tube 41 of the main body 4, and cooperating to the delivery hose, the fitting, the tube and the shower head, to construct the water flowing channel. There are a pair of opposite a reversion fm 42 and a crowned collar 21 built upon the inside wall of the tube 4 and the outside wall of the shroud tube 2 respectively.

Said restoring spring 3 is put over the outside wall of the shroud tube 2, and located on the reversion fin 42 and the crowned collar 21 with both ends, thereby the restoring force of the restoring spring 3 pushing the shroud tube 2 up bringing the shower head 5 to restore the original position.

There are sealing loops 7 set upon the contacting surfaces of each pair of adjacent components.

For further improving the shroud tube 2 to slide up-down smoothly in the tube 41, said fitting 1 extends a guiding tube 11 axially downward, which can be molded into one whole body with the fitting 1, or molded into one individual part securing on the independent fitting 1 also (it is shown as later structure in this embodiment), said guiding tube 11 stretches into the inside of the tube 41 of the main body 4, coordinating it, said shroud tube 2 has an axial ring groove 22 built on the circle wall for fitting on said guiding tube 11 of said fitting 1 in up-down moving connection.

In this embodiment, said main body 4 has a housing 43 for supplying a space containing the shower head 5 moving down-up under the water pressure or the restoring spring 5 working as sliding out or sliding back in original position, thereby preventing the shower head 5 from damaging by striking of the faucet 8 as withdrawing back.

The combined faucet is in idle state, such as in natural state without any water pressure exerting on it, as shown in FIG. 3, as same as the conventional goods, under the balance force coming from the balance weight located on the delivery hose 6 (not shown in drawings), the present invention is hidden into the mouth of the faucet 8, by means of the restoring spring 3 pushing up the shower head 5 into the home position fully, by the size control in design, the volume of the whole faucet 8 is controlled into minimal level to prevent the shower head 5 from striking damage.

When cutting on water in using, as shown in FIG. 4, water flows through the delivery hose 6, the fitting 1, the shroud tube 2 entering the inside of the shower head 5, due to the water pressure exerting on the shower head 5, a pushing force coming from water presses the shower head 5 to move down overcoming the restoring force of the restoring spring 3, so as to extend out from the faucet 8 facilitating to draw out for use, and especially to the multipurpose shower head, this design is convenience of switching function operation.

When finishing use by cutting out water, the water pressure is eliminated, the shower head 5 is pushed up by the restoring force coming from the restoring spring 3 until to get into original position, as shown in FIG. 3, facilitating to storing.

The present invention is at least comprised of said main body assembly and shower head assembly connected together in socket joint, by means of restoring spring 3 set upon the joint portions of them used for repositioning, so as combining the present invention into the faucet 8, such as the main body 4 connecting to the delivery hose 6, cooperating to the water pressure, the shower head 5 is pushed out or pushed up at the home position by the restoring spring hiding into the faucet 8 fully via the size control in design, so that the volume of the whole faucet 8 is controlled into minimal level to prevent the shower head 5 from striking damage, and facilitating to using and storing. Concerning to the detail assembling ways of the main body 4 and the shower head 5, they are not limited by the embodiment described above.