A push button switch valve

Abstract

The application relates to a key switch valve, which comprises a valve body, a key and a valve core, the valve body comprises a water inlet, a water outlet, a key hole and a valve cavity; the valve core is arranged in the valve cavity, the valve core divides the valve cavity into three spaces; the valve core comprises an upper valve core body, a lower valve core body and a movable core; the lower valve core is provided with a water inlet channel and a water outlet channel; a control structure is arranged between the movable core and the upper valve core body; the control structure can change the connection state of the water inlet channel and the water outlet channel; the key is connected with the movable core.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve, in particular to a mechanical valve capable of being opened and closed by a button switch. BACKGROUND

[0002] The angle type stop valve or straight type water valve required by the current consumer market common water heater, exposed floor closet, exposed faucet, are in the form of knob opening and closing; after using for a long time, the knob stroke becomes loose, or the knob is stuck, or even the knob is rotated in the wrong direction, causing misoperation and safety hazards such as water burst.

[0003] The information disclosed in the background section of this document is only intended to increase the understanding of the general background of the application and should not be considered as admitting or implying that this information constitutes prior art that is known to those of ordinary skill in the art. SUMMARY

[0004] The present application provides a switch valve closed by pressing, which is more convenient to use than the knob opening and closing valve, and avoids the above-mentioned problems of the knob switch valve.

[0005] The button switch valve disclosed in the present application comprises a valve body, a button and a valve core, characterized in that: the valve body comprises a water inlet, a water outlet, a button port and a valve cavity;

[0006] The valve core is arranged in the valve cavity, and the valve core divides the valve cavity into three spaces; the valve core comprises an upper valve core body, a middle valve core body, a lower valve core body and a movable core; the lower valve core is provided with a water inlet channel and a water outlet channel; a control structure is arranged between the movable core and the upper valve core body; the control structure can change the communication state of the water inlet channel and the water outlet channel;

[0007] The button is connected to the movable core.

[0008] In some embodiments, the valve body is provided with a first boss, a second boss and a third boss, the first boss is used to limit the stroke of the button, and the second boss and the third boss are used to limit the position of the valve core.

[0009] In some embodiments, the lower valve core body is provided with a central channel and a surrounding channel, the central channel is in communication with the water inlet, and the surrounding channel is in communication with the water outlet.

[0010] In some embodiments, the lower valve core body is provided with a first ring groove and a second ring groove, the first ring groove is provided with a first sealing ring, and the second ring groove is provided with a second sealing ring; the lower valve core body is provided with a filter screen.

[0011] In some embodiments, the upper valve core body, the middle valve core body and the lower valve core body are detachably connected together.

[0012] In some embodiments, the inner wall of the upper valve core body is uniformly provided with guide rails, limiting grooves and clamping grooves; the bottom surface of the guide rail is inclined, the depth of the limiting groove is deeper than the depth of the clamping groove, the clamping groove and the limiting groove are located between two adjacent guide rails, and the limiting groove and the clamping groove are distributed in a staggered manner.

[0013] In some embodiments, the movable core comprises a pressing piece, a locking piece and a sealing piece; the locking piece and the sealing piece are detachably connected together, the sealing piece comprises a disc part and a cylindrical part, a spring is sleeved on the cylindrical part, and an elastic sealing layer is arranged at the bottom of the disc part.

[0014] In some embodiments, the inner wall of the middle valve core body is provided with a third ring groove, a third sealing ring is arranged in the third ring groove, and the third sealing ring is in sliding sealing cooperation with the cylindrical part.

[0015] In some embodiments, the outer wall of the locking piece is provided with a locking protrusion, the height and width of the locking protrusion are slightly smaller than the depth and width of the limiting groove, and the top of the locking protrusion is provided as a first inclined surface.

[0016] In some embodiments, the lower end surface of the pressing piece is an isosceles triangular protrusion, eight limiting protrusions are uniformly distributed on the outer side circumference of the lower end of the pressing piece, the height of the limiting protrusion is slightly smaller than the depth of the clamping groove, the top angle of the isosceles triangular protrusion is on the same straight line as the vertical center line of the limiting protrusion, and the inclination of the waist of the isosceles triangular protrusion matches the first inclined surface and the inclined bottom surface of the guide rail.

[0017] By adopting the above technical scheme, the present application has the following technical effects:

[0018] 1. The switch water valve is opened and closed by a key, and is more convenient to use.

[0019] 2. Long-term use will not cause stroke slack, and when water is opened, the spring is in an elongated state, and spring failure will not occur. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a cross-sectional structure schematic view of the present application;

[0022] Figure 2 This is a schematic diagram of a valve core structure;

[0023] Figure 3 yes Figure 2 A schematic diagram of the AA cross-section;

[0024] Figure 4 This is a schematic diagram of a pressing component;

[0025] Figure 5 This is a partial cross-sectional schematic diagram of the upper valve core;

[0026] Figure 6 This is a structural diagram of a locking component.

[0027] Figure 7 This is a cross-sectional schematic diagram of the upper valve core.

[0028] In the diagram: 1. Valve body; 11. Inlet; 12. Outlet; 13. Button port; 14. Valve chamber; 141. First chamber; 142. Second chamber; 143. Third chamber; 15. First boss; 16. Second boss; 17. Third boss; 2. Button; 3. Valve core; 31. Upper valve core body; 311. Guide rail; 312. Limiting groove; 313. Slot; 32. Middle valve core body; 321. Third annular groove; 322. Third sealing ring; 33. Lower valve core body 331. Water outlet channel; 332. Water inlet channel; 333. First annular groove; 334. Second annular groove; 335. First sealing ring; 336. Second sealing ring; 337. Filter screen; 34. Movable core; 35. Pressing element; 351. Isosceles triangular protrusion; 352. Limiting protrusion; 36. Locking element; 361. Locking protrusion; 37. Sealing element; 371. Disc part; 372. Cylindrical part; 373. Spring; 374. Elastic sealing layer. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0030] Example 1

[0031] Reference Appendix Figures 1-7 As shown, the push-button switch valve includes a valve body 1, a button 2, and a valve core 3. The valve body 1 includes an inlet 11, an outlet 12, a button port 13, and a valve chamber 14. The axis of the inlet 11 is perpendicular to the axis of the outlet 12.

[0032] In order to press the key 2 more conveniently, as a preferred scheme of the present application, the included angle between the axis of the key hole 13 and the axis of the water inlet hole 11 and the axis of the water outlet hole 12 is an obtuse angle.

[0033] The valve core 3 is arranged in the valve cavity 14, and the valve core 3 divides the valve cavity 14 into three spaces, i.e. the first cavity 141 communicating with the water inlet hole 11, the second cavity 142 for mounting the valve core 3, and the third cavity 143 communicating with the water outlet hole 12. The valve core 3 comprises an upper valve core body 31, a middle valve core body 32, a lower valve core body 33, and a movable core 34. The lower valve core body 33 is provided with a water inlet passage 332 and a water outlet passage 331. A control structure is arranged between the movable core 34 and the upper valve core body 31. The control structure can change the communication state of the water inlet passage 332 and the water outlet passage 331.

[0034] The key 2 is connected to the movable core 34, and preferably adopts a threaded structure for connection.

[0035] The valve body 1 is provided with a first boss 15, a second boss 16 and a third boss 17. The first boss 15 is used to limit the stroke of the key 2, and the second boss 16 and the third boss 17 are used to limit the position of the valve core 3.

[0036] The water outlet passage 331 is a central passage located in the center of the valve core 3, and the water inlet passage 332 is a peripheral passage distributed in a circle around the central passage. The central passage communicates with the water outlet hole 12, and the peripheral passage communicates with the water inlet hole 11.

[0037] In order to ensure that the first cavity 141, the second cavity 142 and the third cavity 143 are mutually isolated, the lower valve core body 33 is provided with a first ring groove 333 and a second ring groove 334. The first ring groove 333 is provided with a first sealing ring 335, and the second ring groove 334 is provided with a second sealing ring 336. The first cavity 141 is isolated from the second cavity 142 by the first sealing ring 335, and the second cavity 142 is isolated from the third cavity 143 by the second sealing ring 336.

[0038] In order to prevent impurities in tap water from blocking the key switch valve, the lower valve core body 33 is provided with a filter screen 337.

[0039] In order to facilitate the installation of the movable core 34, the upper valve core body 31, the middle valve core body 32 and the lower valve core body 33 are detachably connected together by threads, and the middle valve core body 32 and the lower valve core body 33 are sealingly connected.

[0040] The inner wall of the upper valve core body 31 is uniformly provided with guide rails 311, limiting grooves 312 and clamping grooves 313. In the embodiment, the guide rails 311 are eight in total and are uniformly distributed in the circumferential direction, the limiting grooves 312 are four in total, the clamping grooves 313 are four in total, the bottom surface of the guide rail 311 is a slope, the depth of the limiting groove 312 is deeper than the depth of the clamping groove 313, the clamping groove 313 and the limiting groove 312 are located between two adjacent guide rails 311, and the limiting groove 312 and the clamping groove 313 are distributed in a staggered manner.

[0041] The movable core 34 comprises a pressing piece 35, a locking piece 36 and a sealing piece 37; the locking piece 36 and the sealing piece 37 are detachably connected together, the sealing piece 37 comprises a disc part 371 and a cylindrical part 372, a spring 373 is sleeved on the cylindrical part 372, and an elastic sealing layer 374 is arranged on the bottom of the disc part 371; the elastic sealing layer 374 can be made of rubber or the like.

[0042] The inner wall of the middle valve core body 32 is provided with a third ring groove 321, and a third sealing ring 322 is arranged in the third ring groove 321; the third sealing ring 322 is in sliding sealing cooperation with the cylindrical part 372.

[0043] The outer wall of the locking piece 36 is provided with locking protrusions 361; in the embodiment, the locking protrusions 361 are four in total, the height and width of the locking protrusions 361 are slightly smaller than the depth and width of the limiting groove 312, and the top of the locking protrusion 361 is provided with a first inclined surface.

[0044] The lower end surface of the pressing piece 35 is an isosceles triangular protrusion 351; in the embodiment, the protrusion is eight in total; eight limiting protrusions 352 are uniformly distributed in the circumferential direction on the outer side of the lower end of the pressing piece 35, and the height of the limiting protrusion 352 is slightly smaller than the depth of the clamping groove 313. The top angle of the isosceles triangular protrusion 351 and the vertical center line of the limiting protrusion 352 are on the same straight line. The inclination of the waist of the isosceles triangular protrusion 351 matches the first inclined surface and the slope of the bottom surface of the guide rail 311.

[0045] When the key switch valve needs to be closed, the key 2 is pressed down, the pressing piece 35 drives the locking piece 36 to move down, the isosceles triangle-shaped protrusion 351 of the pressing piece 35 acts on the first inclined surface of the locking piece 36, the pressing piece 35 exerts a downward and circumferential force on the locking piece 36, when the locking piece 36 moves to the lowest point, the locking piece 36 rotates in the process of moving down under the action of the force, after the locking piece 36 rotates, it is clamped by the upper valve core inner clamping groove 313, the sealing piece 37 isolates the surrounding channel and the central channel, and the effect of closing the key switch valve is achieved. When the key switch valve needs to be opened, the elastic sealing layer 374 has a certain deformation, the pressing piece 35 moves down to release the locking piece 36 from the limiting clamping groove 313, because the spring is in a compressed state at this time, the spring 373 drives the sealing piece 37 to move up, the surrounding channel and the central channel are connected, and the key switch valve is opened.

[0046] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1.A key switch valve, comprising a valve body, a key and a valve core, characterized in that: the valve body comprises a water inlet, a water outlet, a key hole and a valve cavity; the valve core is arranged in the valve cavity, and the valve core divides the valve cavity into three spaces; the valve core comprises an upper valve core body, a middle valve core body, a lower valve core body and a movable core; the lower valve core body is provided with a water inlet channel and a water outlet channel; a control structure is arranged between the movable core and the upper valve core body; the control structure can change the connection state of the water inlet channel and the water outlet channel; the key is connected to the movable core; the inner wall of the upper valve core body is uniformly provided with guide rails, limiting grooves and clamping grooves; the bottom surface of the guide rail is inclined; the depth of the limiting groove is greater than the depth of the clamping groove; the clamping groove and the limiting groove are located between two adjacent guide rails; the limiting groove and the clamping groove are distributed in a staggered manner; the movable core comprises a pressing piece, a locking piece and a sealing piece; the locking piece and the sealing piece are detachably connected together; the sealing piece comprises a disc part and a cylindrical part; a spring is sleeved on the cylindrical part; an elastic sealing layer is arranged at the bottom of the disc part; the elastic sealing layer is made of rubber material; the elastic sealing layer is used to block or connect the water inlet channel and the water outlet channel; the outer wall of the locking piece is provided with a locking protrusion; the height and width of the locking protrusion are slightly smaller than the depth and width of the limiting groove; the top of the locking protrusion is provided with a first inclined surface; the lower end surface of the pressing piece is an isosceles triangle-shaped protrusion; eight limiting protrusions are uniformly distributed on the outer side of the lower end of the pressing piece; the height of the limiting protrusion is slightly smaller than the depth of the clamping groove; the top angle of the isosceles triangle-shaped protrusion and the vertical center line of the limiting protrusion are on the same straight line; the waist of the isosceles triangle-shaped protrusion matches the first inclined surface and the inclined bottom surface of the guide rail. 2.The key switch valve according to claim 1, characterized in that: the valve body is provided with a first boss, a second boss and a third boss; the first boss is used to limit the stroke of the key; the second boss and the third boss are used to limit the position of the valve core. 3.The key switch valve according to claim 1, characterized in that: the water outlet channel is a central channel located at the center of the valve core; the water inlet channel is a peripheral channel distributed in a circumferential manner around the central channel; the central channel is connected with the water outlet; the peripheral channel is connected with the water inlet. 4.The key switch valve according to claim 3, characterized in that: the lower valve core body is provided with a first ring groove and a second ring groove; a first sealing ring is arranged in the first ring groove; a second sealing ring is arranged in the second ring groove; and a filter screen is arranged on the lower valve core body. 5.The key switch valve according to claim 1, characterized in that: the upper valve core body, the middle valve core body and the lower valve core body are detachably connected together. 6.The key switch valve according to claim 1, characterized in that: the inner wall of the middle valve core body is provided with a third ring groove; a third sealing ring is arranged in the third ring groove; and the third sealing ring is in sliding sealing cooperation with the cylindrical part. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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