CN220204675U

CN220204675U - Key switch valve

Info

Publication number: CN220204675U
Application number: CN202321403187.0U
Authority: CN
Inventors: 张靖
Original assignee: Henan Zhenbohui Industrial Co ltd
Current assignee: Henan Zhenbohui Industrial Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-19
Anticipated expiration: 2033-06-05

Abstract

The utility model relates to a key switch valve, which comprises a valve body, keys and a valve core, wherein the valve body comprises a water inlet, a water outlet, a key opening and a valve cavity; the valve core is arranged in the valve cavity, and the valve core seals the valve cavity into three spaces; the valve core comprises an upper valve core body, a lower valve core body and a movable core; a water inlet channel and a water outlet channel are arranged on the lower valve core; a control structure is arranged between the movable core and the upper valve core body; the control structure can enable the movable core to change the communication state of the water inlet channel and the water outlet channel; the key is connected with the movable core.

Description

Key switch valve

Technical Field

The utility model relates to the technical field of valves, in particular to a mechanical valve capable of being opened and closed by a key.

Background

The water heater, the open-mounted floor closestool and the open-mounted faucet which are commonly used in the current consumer market are provided with an angle type stop valve or a straight type water valve for controlling water switching, and are all in a knob opening and closing mode; after the use time is long, the knob stroke is loose, or the knob is aged and stuck, even misoperation such as rotation misdirection occurs, and potential safety hazards such as water collapse are caused.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model provides a switch valve which is closed by pressing, and compared with a valve which is opened and closed by a knob, the switch valve is more convenient to use, and the problems of the switch valve by the knob are avoided.

The utility model discloses a key switch valve, which comprises a valve body, keys and a valve core, and is characterized in that: the valve body comprises a water inlet, a water outlet, a key opening and a valve cavity;

the valve core is arranged in the valve cavity, and the valve core seals 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; a water inlet channel and a water outlet channel are arranged on the lower valve core; a control structure is arranged between the movable core and the upper valve core body; the control structure can enable the movable core to change the communication state of the water inlet channel and the water outlet channel;

the key is connected with the movable core.

In some embodiments, a first boss, a second boss and a third boss are arranged in the valve body, the first boss is used for limiting the stroke of the key, and the second boss and the third boss are used for limiting the position of the valve core.

In some embodiments, the lower valve core body is provided with a central channel and a peripheral channel, and the central channel is communicated with the water inlet; the peripheral channels are communicated with the water outlet.

In some embodiments, the lower valve core body is provided with a first annular groove and a second annular groove, a first sealing ring is arranged in the first annular groove, and a second sealing ring is arranged in the second annular groove; the lower valve core body is provided with a filter screen.

In some embodiments, the upper, middle and lower spool bodies are removably connected together.

In some embodiments, the inner wall of the upper valve core body is uniformly provided with a guide rail, a limit groove and a clamping groove; the bottom surface of the guide rail is an inclined surface, the depth of the limiting groove is deeper than that of the clamping groove, the clamping groove and the limiting groove are both positioned between two adjacent guide rails, and the limiting groove and the clamping groove are distributed in a staggered mode.

In some embodiments, the movable core includes a pressing member, a locking member, and a sealing member; the locking piece is detachably connected with the sealing piece, 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.

In some embodiments, a third annular groove is formed in the inner wall of the middle valve core body, and a third sealing ring is arranged in the third annular groove and is in sliding sealing fit with the cylindrical portion.

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

In some embodiments, the lower end surface of the pressing piece is an isosceles triangle-shaped protrusion, eight limit protrusions are uniformly distributed on the outer side of the lower end of the pressing piece in the circumferential direction, and the height of each limit protrusion is slightly smaller than the depth of the clamping groove; the vertex angle of the isosceles triangle-shaped bulge and the vertical center line of the limit bulge are positioned on the same straight line; the inclination of the isosceles triangle-shaped protruding waist is matched with the first inclined surface and the inclined surface of the bottom surface of the guide rail.

By adopting the technical scheme, the utility model has the following technical effects:

1. the switch water valve is opened and closed by the keys, so that the use is more convenient;

2. the long-term use can not cause the stroke to be loose by accident, and when water is opened, the spring is in an extension state, and the spring can not be invalid.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic illustration of a construction of a valve cartridge;

FIG. 3 is a schematic view in section A-A of FIG. 2;

FIG. 4 is a schematic view of a construction of the pressing member;

FIG. 5 is a schematic partial cross-sectional view of the upper core body;

FIG. 6 is a schematic view of a structure of the locking member

Fig. 7 is a schematic cross-sectional view of the upper spool body.

In the figure 1, a valve body; 11. a water inlet; 12. a water outlet; 13. a key opening; 14. a valve cavity; 141. a first chamber; 142. a second chamber; 143. a third chamber; 15. a first boss; 16. a second boss; 17. a third boss; 2. a key; 3. a valve core; 31. an upper valve core body; 311. a guide rail; 312. a limit groove; 313. a clamping groove; 32. a middle valve core body; 321. a third ring groove; 322. a third seal ring; 33. a lower valve core body; 331. a water outlet channel; 332. a water inlet channel; 333. a first ring groove; 334. a second ring groove; 335. a first seal ring; 336. a second seal ring; 337. a filter screen; 34. a movable core; 35. a pressing member; 351. isosceles triangle-shaped protrusions; 352. a limit protrusion; 36. a locking member; 361. a locking protrusion; 37. a seal; 371. a disc portion; 372. a cylindrical portion; 373. a spring; 374. and an elastic sealing layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Example 1

Referring to fig. 1-7, the key switch valve comprises a valve body 1, a key 2 and a valve core 3, wherein the valve body 1 comprises a water inlet 11, a water outlet 12, a key opening 13 and a valve cavity 14; the axis of the water inlet 11 is perpendicular to the axis of the water outlet 12.

In order to press the key 2 more conveniently, as a preferable scheme of the utility model, the included angles between the axis of the key opening 13 and the axes of the water inlet 11 and the water outlet 12 are obtuse angles.

The valve core 3 is disposed in the valve cavity 14, the valve core 3 seals the valve cavity 14 into three spaces, namely a first cavity 141 communicated with the water inlet 11, a second cavity 142 for mounting the valve core 3, and a third cavity 143 communicated with the water outlet 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; a water inlet channel 332 and a water outlet channel 331 are arranged on the lower valve core body 33; a control structure is arranged between the movable core 34 and the upper valve core 31; the control structure can enable the movable core 34 to change the communication state of the water inlet channel 332 and the water outlet channel 331;

the key 2 is connected to the movable core 34, preferably by a threaded structure.

The valve body 1 is internally provided with a first boss 15, a second boss 16 and a third boss 17, the first boss 15 is used for limiting the travel of the key 2, and the second boss 16 and the third boss 17 are used for limiting the position of the valve core 3.

The water outlet channel 331 is a central channel located at the center of the valve core 3, the water inlet channel 332 is a peripheral channel circumferentially distributed around the central channel, and the central channel is communicated with the water outlet 12; the surrounding channels communicate with the water inlet 11.

In order to ensure that the first chamber 141, the second chamber 142, and the third chamber 143 are isolated from each other, the lower valve body 33 is provided with a first ring groove 333 and a second ring groove 334, a first sealing ring 335 is disposed in the first ring groove 333, and a second sealing ring 336 is disposed in the second ring groove 334. The first chamber 141 is isolated from the second chamber 142 by the first sealing ring 335, and the second chamber 142 is isolated from the third chamber 143 by the second sealing ring 336.

In order to prevent impurities in tap water from blocking the key switch valve, a filter screen 337 is arranged on the lower valve core 33.

In order to facilitate the movable core installation 34, the upper core body 31, the middle core body 32 and the lower core body 33 are detachably connected together by adopting threads, and the middle core body 32 and the lower core body 33 are connected in a sealing way.

The inner wall of the upper valve core 31 is uniformly provided with a guide rail 311, a limit groove 312 and a clamping groove 313. In this embodiment, the number of the guide rails 311 is eight, the number of the limit grooves 312 is four, the number of the clip grooves 313 is four, the bottom surface of the guide rail 311 is an inclined surface, the depth of the limit groove 312 is deeper than that of the clip grooves 313, the clip grooves 313 and the limit grooves 312 are located between two adjacent guide rails 311, and the limit grooves 312 and the clip grooves 313 are distributed in a staggered manner.

The movable core 34 includes 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 portion 371 and a cylindrical portion 372, a spring 373 is sleeved on the cylindrical portion 372, an elastic sealing layer 374 is arranged on the bottom portion 371 of the disc portion, and the elastic sealing layer 374 can be made of rubber or other materials.

The inner wall of the middle valve core 32 is provided with a third annular groove 321, a third sealing ring 322 is arranged in the third annular groove 321, and the third sealing ring 322 is in sliding sealing fit with the cylindrical part 372.

The outer wall of the locking member 36 is provided with four locking protrusions 361, in this embodiment, 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 protrusions 361 is provided with a first inclined surface.

The lower end surface of the pressing piece 35 is provided with isosceles triangle-shaped protrusions 351, and in the embodiment, the number of the protrusions is eight; eight limit protrusions 352 are uniformly distributed on the outer circumference of the lower end of the pressing member 35, and the height of each limit protrusion 352 is slightly smaller than the depth of the corresponding clamping groove 313. The vertex angle of the isosceles triangle-shaped protrusion 351 is on the same straight line with the vertical center line of the limit protrusion 352. The inclination of the waist of the isosceles triangle-shaped protrusion 351 is matched with the first inclined surface and the inclined surface of the bottom surface of the guide rail 311.

When the key switch valve is required to be closed, the key 2 is pressed downwards, the pressing piece 35 drives the locking piece 36 to move downwards, the isosceles triangle-shaped protrusion 351 inclined surface of the pressing piece 35 acts on the first inclined surface of the locking piece 36, the pressing piece 35 applies a downward and circumferential force to the locking piece 36, when the locking piece 36 moves to the lowest point, the locking piece 36 rotates in the downward movement process under the action of the force, after the locking piece 36 rotates 373, the locking piece is clamped by the clamping groove 313 in the upper valve core, and the sealing piece 37 isolates a surrounding channel from a central channel, so that the effect of closing the angle 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 downwards to release the locking piece 36 from the limiting clamping groove 313, and the spring 373 drives the sealing piece 37 to move upwards because the spring is in a compressed state at the moment, the surrounding channel is communicated with the central channel, and the key switch valve is opened.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a key switch valve, includes valve body, button and case, its characterized in that: the valve body comprises a water inlet, a water outlet, a key opening and a valve cavity;

the key is connected with the movable core.

2. The key switch valve according to claim 1, wherein: the valve body is internally provided with a first boss, a second boss and a third boss, the first boss is used for limiting the stroke of the key, and the second boss and the third boss are used for limiting the position of the valve core.

3. The key switch valve according to claim 1, wherein: the lower valve core body is provided with a central channel and a peripheral channel, and the central channel is communicated with the water inlet; the peripheral channels are communicated with the water outlet.

4. A key switch valve according to claim 3, wherein: the lower valve core body is provided with a first annular groove and a second annular groove, a first sealing ring is arranged in the first annular groove, and a second sealing ring is arranged in the second annular groove; the lower valve core body is provided with a filter screen.

5. The key switch valve according to claim 1, wherein: 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, wherein: the inner wall of the upper valve core body is uniformly provided with a guide rail, a limit groove and a clamping groove; the bottom surface of the guide rail is an inclined surface, the depth of the limiting groove is deeper than that of the clamping groove, the clamping groove and the limiting groove are both positioned between two adjacent guide rails, and the limiting groove and the clamping groove are distributed in a staggered mode.

7. The key switch valve according to claim 6, wherein: the movable core comprises a pressing piece, a locking piece and a sealing piece; the locking piece is detachably connected with the sealing piece, 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.

8. The key switch valve according to claim 7, wherein: the inner wall of the middle valve core body is provided with a third annular groove, a third sealing ring is arranged in the third annular groove, and the third sealing ring is in sliding sealing fit with the cylindrical part.

9. The key switch valve according to claim 7, wherein: the outer wall of the locking piece is provided with a locking protrusion, the height and the width of the locking protrusion are slightly smaller than the depth and the width of the limiting groove, and the top of the locking protrusion is provided with a first inclined surface.

10. The key switch valve according to claim 9, wherein: the lower end surface of the pressing piece is provided with isosceles triangle-shaped bulges, eight limit bulges are uniformly distributed on the outer side of the lower end of the pressing piece in the circumferential direction, and the height of each limit bulge is slightly smaller than the depth of the clamping groove; the vertex angle of the isosceles triangle-shaped bulge and the vertical center line of the limit bulge are positioned on the same straight line; the inclination of the isosceles triangle-shaped protruding waist is matched with the first inclined surface and the inclined surface of the bottom surface of the guide rail.