WO2019100206A1 - Labour-saving button water-saving valve - Google Patents

Abstract

Disclosed is a labour-saving button water-saving valve, comprising a button (3), a valve core (2), a valve core spring (7) and a valve seat (15), wherein the middle of the valve seat forms a core chamber (14), and the peripheral wall of the core chamber is provided with a water intake hole (12) and a water outlet hole (13); the valve core can be movably inserted back and forth in the core chamber, and has a front end thereof abutting the valve core spring and a rear end thereof being connected to the button; the valve core can move back and forth in the core chamber under the drive of the button and the elastic force of the valve core spring such that the water intake hole and the water outlet hole are in communication or are cut off, thus realising the opening or closing of the water-regulating valve; and an outer peripheral face of a front end of the valve core forms an annular groove (21), the button drives the valve core to move to a cut-off position of the water intake hole and the water outlet hole, such that the annular groove of the valve core is in communication with the water intake hole, and an annular water pressure chamber is formed between the valve core and a peripheral wall of the core chamber. The annular water pressure chamber formed by the annular groove can lower the water pressure sustained by the valve core, realising smooth opening and closing in switching water channel, and avoiding wear on the valve core to improve the service life and sealing performance of the water-saving valve.

Description

A labor-saving button water saving valve Technical field

 The invention relates to the technical field of sanitary ware, in particular to a labor-saving button water saving valve.

Background technique

The water-saving structure of the button in the existing sanitary industry is shown in Figures 1-3, including the water inlet assembly 10, the spring 20, the valve core assembly 30, the O-ring A40, the O-ring B50, the fixing seat 60, the button 70, and the decorative cover. 80. The spool assembly 30 includes a first intermediate member 301, a second intermediate member 302, and a valve core 303. The fixing base 60 is inserted into the water inlet passage of the water inlet assembly 10 from the side of the water inlet assembly, and the valve core 303 is movably disposed on the fixing seat 60. And moving in the axial direction, the two sides of the fixing base 60 respectively define a water inlet hole 601 corresponding to the water inlet end of the water inlet assembly 10 and a water outlet hole 602 corresponding to the water outlet end of the water inlet assembly 10, and the spring 20 is sleeved On the valve core 302, referring to Figures 2 and 3, the structure pushes the valve core 303 to move axially in the fixed seat 60 by pressing the button 70 to block the water inlet hole 601. When the button 70 is released, the spring 20 pushes the valve backward. The axial movement of the core 302 opens the water inlet hole 601 to achieve the purpose of closing the water passage when water saving is required and opening the water passage of the water inlet assembly 10 when water is required, thereby realizing a water saving function.

The defect of the above-mentioned button water saving structure is that since the existing valve body 303 structure blocks the water flow by close contact with the water inlet hole 601, when the water path is not available, the valve body 302 is pressed to a position blocking the water inlet hole 601. The valve core 302 is subjected to the water pressure in the direction of the water inlet hole, so that the valve core 303 will be in close contact with the inner wall of the water outlet hole 602 of the mating fixing seat 60. When the button 70 is released, the valve core 303 is pushed by the elastic restoring force of the spring 20. The axial movement back, the axial movement of the valve core 303 at this time and the inner wall of the fixing seat 60 are relatively large, and the spring 20 needs to provide a large force value to return the valve core 303 to the initial position, so that the water passage is operated when the water is switched. Not smooth, in the case of large water pressure, the elastic restoring force is less than the friction force, the valve core 303 can not return to the original position, resulting in the waterway can not be opened, and the second frequent friction will cause the valve core 302 and the fixed seat 60 wear, spool life and water circuit tightness are reduced, causing water flow out along the gap.

In order to overcome the above disadvantages, the inventors have specially developed a button-saving water-saving structure which is easy to press, and the present invention is produced.

Summary of the invention

The object of the present invention is to provide a labor-saving button water-saving valve, which can smoothly switch the opening and closing of the water passage by reducing the water pressure value of the valve core, and avoid the wear of the valve core, thereby improving the service life of the water-saving structure. And sealed.

In order to achieve the above object, the technical solution of the present invention is as follows:

The utility model relates to a labor-saving button water-saving valve, which comprises a button, a valve core, a valve core spring and a valve seat, wherein a core cavity is formed in the middle of the valve seat, and a water inlet hole and a water outlet hole are arranged on a peripheral wall of the core cavity, and the valve core can be back and forth It is inserted into the core cavity and its front end is in contact with the valve core spring. The rear end of the valve core is connected with the button. The valve core can move back and forth in the core cavity under the elastic force of the button and the spring of the valve core to make the water inlet. The hole and the water outlet are connected to realize the opening of the water valve, or the water inlet hole and the water outlet hole are cut off to realize the closing of the water valve; wherein the outer peripheral surface of the front end of the valve core forms an annular groove, and the button drives the valve core to move to the front. The water hole and the water outlet hole are cut off, so that the annular groove of the valve core communicates with the water inlet hole, and a circular water pressure chamber is formed between the valve core and the peripheral wall of the core cavity.

The water inlet hole and the water outlet hole on the peripheral wall of the core cavity are mutually offset.

The valve seat is formed on a side wall of a water inlet assembly, and the water inlet assembly forms a water inlet passage. The core chamber is divided into a front section and a rear section which are connected to each other, and the front section extends from the side wall of the water inlet assembly to the front side. a water passing chamber in the water passage, the rear portion is a driving chamber extending to the outside of the water inlet assembly, the valve core can be inserted back and forth in the water passing chamber and the driving chamber, and the front end of the valve core is in the water passing chamber Moving to make the water inlet hole and the water outlet hole communicate or cut off, the rear end of the valve core moves back and forth in the driving cavity; a sealing gasket is arranged between the water passing chamber and the driving cavity, and the sealing gasket is sleeved on the valve core; The water inlet hole and the water outlet hole are formed on the peripheral wall of the water passage chamber, and the water inlet hole communicates with the water inlet end of the water inlet passage, and the water outlet hole communicates with the water outlet end of the water inlet passage;

The button water-saving valve further includes a fixing base, a connecting shaft and a connecting sleeve, wherein the fixing seat is disposed in the driving cavity, the fixing seat defines a through hole, the rear end of the valve core is inserted into the through hole, and the spool is rear The end is connected to the front end of the connecting shaft that is disposed in the through hole of the fixing seat, and the rear end of the connecting shaft is sleeved with the front end of the connecting sleeve that is disposed in the through hole of the fixing seat; the two sides of the valve seat are respectively formed a sliding groove is provided in the sliding groove, and the two sides of the button are arranged in the sliding groove and can move axially in the sliding groove, and the axial movement of the button can make the middle part and the rear end of the connecting sleeve The sleeve is connected and pushed, the connecting shaft and the spool are simultaneously moved in the axial direction.

The inner wall of the water inlet assembly forms a fixing groove, and the front end of the valve spring is fixed in the fixing groove.

The button water saving structure further includes a decorative cover that is fastened to the side of the water inlet assembly, and the decorative cover buckles the button so that the button cannot be removed from the sliding slot.

The button water-saving structure further comprises a fixing plate, the inner wall of the driving cavity is provided with a card slot, and the bottom of the fixing plate extends laterally to form a snap ring, the snap ring is snapped into the card slot, and the top of the fixing plate is sleeved on the upper end of the fixing seat to fix The seat cannot escape from the drive cavity.

The button water-saving structure further includes a first O-ring and a second O-ring, the first O-ring is disposed between the fixing seat and the driving cavity, and the second O-ring is disposed at Connect between the bushing and the mount.

An axial direction positioning hole is formed in the valve core, and a rear end of the valve core spring projects into and abuts in the positioning hole.

The water inlet assembly is an inlet pipe.

After adopting the above scheme, the working principle of the present invention is as follows:

When the button is pressed, the button pushes the spool to move forward in the core cavity, the spool spring is compressed, the water inlet hole and the water outlet hole on the peripheral wall of the core cavity are cut off, and the water at one end of the inlet hole cannot pass through the water chamber The water outlet hole is reached, and at this time, the annular groove of the valve core communicates with the water inlet hole, and the water entering the valve core from the water inlet hole is filled with the annular groove, and the annular groove forms an annular water pressure chamber at this time, and the annular water pressure chamber The water is applied from the 360 degree of the spool to the spool core, so that there is no pressure difference in all directions of the spool. After the button is released, the restoring force of the spool spring pushes the spool back, and the spool and the core cavity wall The value of the friction between the two is greatly reduced, so that after the button is released, the spool can rebound quickly.

The invention has the beneficial effects that the design of the annular groove of the valve core makes the valve core no longer subject to the pressure difference caused by the water flow, thereby achieving smoother axial movement when the spool is rebounded, and does not require a valve with a large elastic force. The core spring makes it easier to press. In addition, reducing the friction prevents the valve core and the core cavity from being worn, and improves the sealing of the water-saving structure.

DRAWINGS

Figure 1 is an exploded view of the existing button water saving structure;

2 is a cross-sectional view showing the water saving state of the existing button water saving structure;

Figure 3 is a cross-sectional view showing the water-saving state of the existing button water-saving structure;

Figure 4 is an exploded view of the present invention;

Figure 5 is a cross-sectional view showing the water saving state of the waterway of the present invention;

Figure 6 is a cross-sectional view showing the waterway of the present invention in a non-water-saving state.

7 and 8 are partial cross-sectional views showing the state of water saving of the present invention;

9 and 10 are partial cross-sectional views showing a non-water-saving state of the present invention;

Figure 11 is a schematic structural view of the water inlet assembly of the present invention;

Figure 12 is a schematic view showing the structure of the valve body of the present invention;

Figure 13 is a schematic view showing the structure of the gasket of the present invention;

Soil 14 is an exploded cross-sectional view of the present invention.

Label description

Water inlet assembly 10, spring 20, spool assembly 30, first intermediate member 301, second intermediate member 302, spool 303, O-ring A40, O-ring B50, fixing seat 60, water inlet hole 601, water outlet hole 602, button 70, decorative cover 80.

Inlet assembly 1, water inlet passage 11, water inlet hole 12, water outlet hole 13, core chamber 14, water passage chamber 141, drive chamber 142, valve seat 15, fixed groove 16, chute 17, card slot 18, spool 2, annular groove 21, positioning hole 22, return spring 23, first O-ring 24, second O-ring 25, gasket 26, button 3, fixing seat 4, connecting shaft 5, connecting bushing 6. Fixed plate 61, snap ring 62, spool spring 7, decorative cover 8, body assembly 9.

Detailed ways

As shown in FIG. 4-14, a labor-saving button water-saving valve disclosed in the present invention comprises a valve core 2, a button 3, a spool spring 7 and a valve seat 15, wherein the valve seat 15 is formed in a water inlet. In the side wall of the assembly 1, the water inlet assembly 1 forms a water inlet passage 11 in the water inlet assembly 1 in this example, and a core chamber 14 is formed in the middle of the valve seat 15, and the core chamber 14 is connected to each other. The front and rear sections, the front section is a water passage 141 extending from the side wall of the water inlet assembly to the water inlet passage, and the rear section is a drive chamber 142 extending to the outside of the water inlet assembly, the spool 2 being movable back and forth The water inlet chamber 141 and the driving chamber 142 are disposed in the water chamber 141 and the water wall 141 of the core chamber 14 is provided with a water inlet hole 12 and a water outlet hole 13. The water inlet hole 12 communicates with the water inlet end of the water inlet passage 11 to discharge water. The hole 13 is in communication with the water outlet end of the water inlet passage 11; the front end of the valve body 2 is inserted into the water passing chamber 141 so as to be movable back and forth, and the front end thereof abuts against the spool spring 7, and the spool 2 is driven by the button 3 and the spool spring The elastic force of 7 is moved back and forth in the water passing chamber 141 and the driving chamber 142 to connect the water inlet hole 12 and the water outlet hole 12 to open the water valve, or to make the water inlet hole 12 Nozzle holes 13 cut off valve is implemented; over the water chamber 141 is provided between the drive chamber 142 and the seal 26 seal 26 is sleeved on the spool 2;

The outer peripheral surface of the front end of the valve body 2 forms an annular groove 21, and the button 3 drives the valve core 2 to move to the position where the water inlet hole 12 and the water outlet hole 13 are cut off, so that the annular groove 21 of the valve body 2 communicates with the water inlet hole 12. The valve core 2 forms a circumferential water pressure chamber with the peripheral wall of the core cavity 14.

In order to simplify the structure, the water inlet hole 12 and the water outlet hole 13 are offset from each other.

Further, the button water-saving valve further includes a fixing base 4, a connecting shaft 5 and a connecting sleeve 6, wherein the fixing base 4 is disposed in the driving cavity 142, the fixing seat 4 defines a through hole 41, and the rear end of the valve core 2 is inserted The through hole 41 is disposed in the through hole 41, and the rear end of the spool 2 is connected to the front end of the connecting shaft 5 that is disposed in the fixed through hole 41. The rear end of the connecting shaft 5 is movably disposed in the fixed through hole 41. The front end of the connecting sleeve 6 is sleeved; the two sides of the valve seat 2 respectively form a sliding slot 17, and the sliding slot 17 is provided with a return spring 23, and the two sides of the button 3 are disposed in the sliding slot 23 and can be The axial movement of the sliding groove 16 causes the middle portion of the button to be sleeved with the rear end of the connecting sleeve 6 and pushes the connecting sleeve 6, the connecting shaft 5 and the spool 2 to move in the axial direction at the same time.

As a preferred embodiment, the inner wall of the water inlet assembly 1 forms a fixing groove 16, and the front end of the valve core spring 23 is fixed in the fixing groove 16 to prevent the valve core spring 23 from swaying in the water passing chamber 11.

As a preferred embodiment, the button water saving structure further includes a decorative cover 8 that is fastened to the side of the water inlet assembly 1 and the decorative cover 8 buckles the button 3 so that the button 3 cannot be removed from the chute 17. Come out.

In a preferred embodiment, the button water-saving structure further includes a fixing plate 61. The inner wall of the driving cavity 142 defines a card slot 18. The bottom of the fixing plate 61 extends laterally to form a snap ring 62, and the snap ring 62 is inserted into the card slot 18. The top of the fixing plate 8 is sleeved on the upper end of the fixing base 4, so that the fixing base 4 cannot be disengaged from the driving cavity 142.

In order to further improve the stability of the axial movement of the spool 2, a positioning hole 22 in the axial direction is formed on the spool 2, and the rear end of the spool spring 7 enters and abuts in the positioning hole 22.

In order to improve the sealing property, the button water-saving structure further includes a first O-ring 24 and a second O-ring 25, and the first O-ring 24 is disposed between the fixing seat 4 and the core cavity 14. The second O-ring 25 is disposed between the connecting sleeve 6 and the fixing base 4. The sealing gasket 26 is disposed at the bottom of the core cavity 14. As shown in FIG. 13, the sealing gasket 27 is gear-shaped and can be avoided. It turns.

The water inlet assembly 1 of the present embodiment described above employs an inlet pipe, but the inlet assembly 1 that can be used in the present invention is not limited thereto, and the inlet assembly 1 may be other members having a water inlet passage depending on the application.

Based on the above button water saving structure, the water saving principle of the button of the present invention is as follows:

When the button 3 is pressed, the button 3 pushes the spool 2 forward in the core cavity 14, the spool spring 7 is compressed, and the water inlet hole 12 and the water outlet hole 13 on the peripheral wall of the core cavity 14 (the water passing chamber 141) will When it is cut off, the water at one end of the water inlet hole 12 cannot pass through the water passage 141 to reach the water outlet hole 13, and at this time, the annular groove 21 of the valve body 2 communicates with the water inlet hole 12, and the water entering the valve core 2 from the water inlet hole 12 Filled with the annular groove 21, the annular groove 21 forms an annular water pressure chamber at this time, and the water in the annular water pressure chamber is applied from the 360 degree of the valve core 2 to the axial center of the valve core 2, so that the valve core 2 no longer exists in all directions. The pressure difference, after releasing the button, the restoring force of the spool spring 7 pushes the spool 2 to move back, and the friction value between the spool 2 and the peripheral wall of the core cavity 14 is greatly reduced, so that after the button is released, the spool can be quickly Rebound.

4-6, the present invention is applied to a shower, the water inlet assembly 1 is disposed in the shower housing 9, and the shower is a common application of the button water-saving structure, and the present invention improves the water-saving structure of the button. The utility model provides a labor-saving water-saving valve which can meet the water-saving demand of the shower, and solves the situation that the shower button is not easy to rebound after the water-saving structure is used for a long time, and the water path is unreachable.

The above is only a specific embodiment of the present invention, and is not intended to limit the scope of the present invention. Equivalent changes made in accordance with the design ideas of this case fall within the scope of protection of this case.

Claims (9)

The utility model relates to a labor-saving button water-saving valve, which comprises a button, a valve core, a valve core spring and a valve seat, wherein a core cavity is formed in the middle of the valve seat, and a water inlet hole and a water outlet hole are arranged on a peripheral wall of the core cavity, and the valve core can be back and forth It is inserted into the core cavity and its front end is in contact with the valve core spring. The rear end of the valve core is connected with the button. The valve core can move back and forth in the core cavity under the elastic force of the button and the spring of the valve core to make the water inlet. The hole and the water outlet are connected to realize the opening of the water valve, or the water inlet hole and the water outlet hole are cut off to realize the closing of the water valve; wherein the outer peripheral surface of the front end of the valve core forms an annular groove, and the button drives the valve core to move to the front. The water hole and the water outlet hole are cut off, so that the annular groove of the valve core communicates with the water inlet hole, and a circular water pressure chamber is formed between the valve core and the peripheral wall of the core cavity. A labor-saving water saving valve according to claim 1, wherein the water inlet hole and the water outlet hole on the peripheral wall of the core cavity are offset from each other. A labor-saving button water saving valve according to claim 1, wherein said valve seat is formed on a side wall of a water inlet assembly, and a water inlet passage is formed inside said water inlet assembly, said core chamber being divided into The front and rear sections that communicate with each other, the front section is a water passage chamber extending from the side wall of the water inlet assembly to the water inlet passage, and the rear section is a drive chamber extending to the outside of the water inlet assembly, the valve core can be inserted back and forth Placed in the water chamber and the driving cavity, and the front end of the valve core moves back and forth in the water passing chamber to connect or cut the water inlet hole and the water outlet hole, and the rear end of the valve core moves back and forth in the driving cavity; a sealing gasket is disposed between the driving cavity and the sealing sleeve is sleeved on the valve core; the water inlet hole and the water outlet hole are formed on the peripheral wall of the water passing chamber, and the water inlet hole communicates with the water inlet end of the water inlet channel, The water outlet hole communicates with the water outlet end of the water inlet passage; The button water-saving valve further includes a fixing base, a connecting shaft and a connecting sleeve, wherein the fixing seat is disposed in the driving cavity, the fixing seat defines a through hole, the rear end of the valve core is inserted into the through hole, and the spool is rear The end is connected to the front end of the connecting shaft that is disposed in the through hole of the fixing seat, and the rear end of the connecting shaft is sleeved with the front end of the connecting sleeve that is disposed in the through hole of the fixing seat; the two sides of the valve seat are respectively formed a sliding groove is provided in the sliding groove, and the two sides of the button are arranged in the sliding groove and can move axially in the sliding groove, and the axial movement of the button can make the middle part and the rear end of the connecting sleeve The sleeve is connected and pushed, the connecting shaft and the spool are simultaneously moved in the axial direction. A labor-saving button water saving valve according to claim 3, wherein the inner wall of the water inlet assembly forms a fixing groove, and the front end of the valve body spring is fixed in the fixing groove. A labor-saving button water saving valve according to claim 3, wherein said button water-saving structure further comprises a decorative cover, said decorative cover being fastened to the side of the water inlet assembly, and the decorative cover buckles the button This prevents the button from coming out of the chute. A power-saving button water-saving valve according to claim 3, wherein the button water-saving structure further comprises a fixing plate, the inner wall of the driving cavity is provided with a card slot, and the bottom of the fixing plate extends laterally to form a snap ring. The snap ring is snapped into the card slot, and the top of the fixing plate is sleeved on the upper end of the fixing seat, so that the fixing seat cannot be removed from the driving cavity. A labor-saving button water saving valve according to claim 3, wherein said button water saving structure further comprises a first O-ring and a second O-ring, said first O-ring The second O-ring is disposed between the connecting sleeve and the fixing seat. A labor-saving button water saving valve according to claim 1, wherein a positioning hole in an axial direction is formed on the valve core, and a rear end of the valve core spring projects into and abuts in the positioning hole. . A labor-saving button water saving valve according to claim 1, wherein said water inlet assembly is an inlet pipe.