Water valve capable of protecting valve core sealing gasket

Abstract

The invention belongs to the technical field of water valves, and particularly relates to a water valve capable of protecting a valve element sealing gasket, the water valve comprises a valve seat, the valve seat is of a hollow structure, water guide pipes are inserted into the two sides of the valve seat respectively, a valve element is arranged in the valve seat, a sealing gasket is arranged between the valve element and the water guide pipes, and the sealing gasket abuts against the surface of the valve element. A first water guide hole is formed in the side, attached to the valve element, of the sealing gasket, and second water guide holes communicated with each other are formed in the two sides of the valve element. When the valve is closed, the protrusions press the sealing gasket to enhance the sealing effect, when the valve is opened, the protrusions disengage to reduce pressure on the sealing gasket, elastic attenuation caused by long-term fixed pressure on the sealing gasket is avoided, and the service life of the sealing gasket is remarkably prolonged.

Description

Technical Field

[0001] This invention belongs to the field of water valve technology, and specifically relates to a water valve that can protect the valve core sealing gasket. Background Technology

[0002] Automotive water valves are crucial components in key automotive systems such as cooling and air conditioning, and their stability and reliability directly affect the overall operation of the vehicle. In practical applications, the automotive water valve seat typically consists of three parts: the valve core, the valve core sealing gasket, and the valve body. A sealing gasket is installed between the valve core and the valve body to achieve a seal and prevent liquid leakage.

[0003] However, because the valve core sealing gasket is constantly sandwiched between the valve core and the valve body under continuous pressure, its sealing performance gradually declines, thus shortening its service life. After prolonged use, it becomes difficult to meet the sealing requirements of the water valve. Summary of the Invention

[0004] In view of this, the present invention provides a water valve that can protect the valve core sealing gasket, the purpose of which is to protect the sealing gasket to extend its service life and improve the sealing of the water valve.

[0005] The technical solution adopted in this invention is as follows: A water valve with a protective valve core sealing gasket includes a valve seat, which is a hollow structure. Water guide pipes are inserted through both sides of the valve seat, and a valve core is provided inside the valve seat. A sealing gasket is provided between the valve core and the water guide pipes, and the sealing gasket abuts against the surface of the valve core. The valve core is characterized in that a first water guide hole is provided on the side of the sealing gasket that is in contact with the valve core, a second water guide hole is provided on both sides of the valve core, and a third water guide hole is provided at both ends of the water guide pipes. The valve core is a cylindrical structure, and a protrusion is provided on the surface of the valve core on the side without the second water guide hole, and the protrusion extends along the length of the valve core.

[0006] As a preferred technical solution, the end of the water guide pipe that is inserted into the valve seat is the docking end, and the sealing gasket is provided with a collar that matches the docking end, wherein the docking end is inclined.

[0007] In some embodiments, the surface of the collar is provided with grooves distributed around its circumference, and a sealing ring is fitted inside the grooves.

[0008] In some embodiments, a first spring is sleeved on the collar, with its two ends along its length abutting against the inner walls of the sealing gasket and the valve seat, respectively.

[0009] In some embodiments, a receiving groove is provided on the inner wall of the valve seat, a filling block is provided in the receiving groove, and an elastic mechanism is provided between the filling block and the receiving groove, wherein the filling block is arranged in a hemispherical structure and adapted to the second water guide hole.

[0010] In some embodiments, a retaining ring is provided on the inner wall of the second water guide hole, and the retaining ring is clamped in the filling block.

[0011] In some embodiments, the elastic mechanism includes: a contraction cavity, which is formed in the inner wall of the valve seat, and a through hole is formed at one end of the contraction cavity facing the filling block; a sleeve, which is inserted into the through hole; a movable column, one end of which is fixedly connected to the filling block, and the other end of which is inserted into the sleeve; and a second spring, with both ends of the second spring respectively disposed between the contraction cavity and the sleeve.

[0012] In some embodiments, an electromagnet is provided on the inner wall of the contraction cavity, and the interior of the contraction cavity is filled with working fluid, wherein a drive part electrically connected to the electromagnet is provided on the outer wall of the valve seat.

[0013] In some embodiments, a limiting block is provided on the outer wall of the sleeve, and a limiting groove adapted to the limiting block is provided on the inner wall of the contraction cavity.

[0014] In some embodiments, the protrusion has an arcuate structure and fits against the inner wall of the valve seat.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. This invention provides an arc-shaped protrusion extending along the length direction on the non-water-conducting side of the valve core. With the rotation of the valve core, the protrusion and the sealing gasket are periodically contacted and separated. When the valve is closed, the protrusion presses against the sealing gasket to enhance the sealing effect. When the valve is opened, the protrusion disengages to reduce the pressure on the sealing gasket, thus avoiding the elastic decay caused by the sealing gasket being fixed and compressed for a long time and significantly extending the service life of the sealing gasket.

[0016] 2. In this invention, the hemispherical filling block in the receiving groove on the inner wall of the valve seat cooperates with the elastic mechanism. When the valve is closed, the filling block protrudes under the action of elastic force to fill the gap between the second water guide hole and the receiving groove. Combined with the clamping and fixing of the retaining ring on the inner wall of the second water guide hole, it effectively prevents water from seeping in from the gap between the valve core and the valve seat, and further improves the overall sealing performance of the water valve.

[0017] 3. In this invention, the electromagnet, magnetorheological fluid and elastic mechanism in the contraction cavity work together. When energized, the magnetorheological fluid solidifies and locks the position of the filling block to ensure sealing stability. When de-energized, the magnetorheological fluid liquefies to allow the filling block to flexibly reset without affecting the water flow. At the same time, the limiting block and limiting groove limit the sleeve offset, which not only ensures the sealing accuracy, but also enhances the operational reliability of the elastic mechanism and avoids accidental valve opening caused by accidental contact. Attached Figure Description

[0018] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the water valve that can protect the valve core sealing gasket provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the connection structure between the sealing gasket and the valve seat provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the sealing gasket provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the valve core provided by the present invention.

[0022] Figure 5 This is a schematic diagram illustrating the rotation effect of the valve core provided by the present invention.

[0023] Figure 6 This is a schematic diagram of the internal structure of the valve seat provided by the present invention.

[0024] Figure 7 This is a schematic diagram of the connection structure between the filling block and the valve seat provided by the present invention.

[0025] Figure 8 This invention provides Figure 7 A magnified structural diagram of point A in the middle.

[0026] 1. Valve seat; 2. Valve core; 3. Rotating shaft; 4. Sealing gasket; 5. Water guide pipe; 6. First water guide hole; 7. First spring; 8. Collar; 9. Groove; 10. Sealing ring; 11. Second water guide hole; 12. Snap ring; 13. Protrusion; 14. Connecting end; 15. Filler block; 16. Drive unit; 17. Storage groove; 18. Moving column; 19. Contraction chamber; 20. Second spring; 21. Electromagnet; 22. Sleeve; 23. Limiting block; 24. Limiting groove. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In existing technologies, because the valve core sealing gasket is sandwiched between the valve core and the valve body, its sealing performance gradually declines due to long-term pressure, thus shortening its service life. After prolonged use, it becomes difficult to meet the sealing requirements of the water valve. Example

[0029] Therefore, in order to solve the above problems, this application proposes a water valve that can protect the valve core 2 and the sealing gasket 4, see reference. Figure 1 and Figure 5 The valve includes a valve seat 1, which is a hollow structure. Water guide pipes 5 are inserted through both sides of the valve seat 1, and a valve core 2 is provided inside the valve seat 1. A sealing gasket 4 is provided between the valve core 2 and the water guide pipes 5. The sealing gasket 4 abuts against the surface of the valve core 2. The sealing gasket 4 has a first water guide hole 6 on one side of the valve core 2, and second water guide holes 11 that are interconnected on both sides of the valve core 2. Third water guide holes that are interconnected at both ends of the water guide pipes 5. The valve core 2 has a cylindrical structure, and a protrusion 13 is provided on the surface of the valve core 2 on the side where the second water guide hole 11 is not provided. The protrusion 13 extends along the length direction of the valve core 2.

[0030] In practical applications, the first water guide hole 6, which is formed on one side of the sealing gasket 4 and fits against the valve core 2, can be understood as a channel for guiding water flow through the sealing gasket 4. This can be achieved by setting through holes or embedded guide grooves on the sealing gasket 4, for example, by forming a perforated structure with a flow guiding function through a molding process. Its main purpose is to introduce water flow from inside the valve core 2 into the water guide pipe 5, thereby dispersing the pressure borne by the sealing gasket 4. Furthermore, the interconnected second water guide holes 11 on both sides of the valve core 2 can be formed in the form of straight holes or spiral holes. For example, a straight channel can be machined inside the valve core 22 through a mechanical drilling process, or a complex channel structure with a specific flow direction can be formed using casting technology. Its main purpose is to enable water flow along the axial direction of the valve core 2 and to balance the pressure distribution. In addition, the interconnected third water guide holes at both ends of the water guide pipe 5 are mainly for the smooth introduction and exit of water flow from the water guide pipe 5.

[0031] In this embodiment, a protrusion 13 is provided on the surface of the valve core 2 on the side without the second water guide hole 11. This protrusion 13 has an arc-shaped structure, which can dynamically adjust the sealing contact point and prevent the performance of the sealing gasket 4 from deteriorating due to long-term fixed pressure. Specifically, when the valve core 2 rotates to close the valve, the protrusion 13 will contact the sealing gasket 4 and create pressure. When the valve core 2 rotates again to open the valve, the protrusion 13 will move away from the surface of the sealing gasket 4 with the rotation of the valve core 2, thereby reducing the pressure received by the sealing gasket 4 and effectively alleviating the problem of elastic decay of the sealing gasket 4 caused by continuous pressure.

[0032] In a specific implementation, the valve seat 1 has a hollow structure with water guide pipes 5 inserted on both sides, and a valve core 2 is installed inside, providing a basic water flow path and installation space for the valve core 2. A sealing gasket 4 is provided between the valve core 22 and the water guide pipe 55. The sealing gasket 4 abuts against the surface of the valve core 2 to achieve a basic sealing function to prevent liquid leakage. Furthermore, a first water guide hole 6 is provided on one side of the sealing gasket 4 that is attached to the valve core 2, allowing water to flow through the body of the sealing gasket 4; second water guide holes 11 are provided on both sides of the valve core 2, which are connected to the first water guide holes 6 to form a continuous water flow channel, guiding the water flow along the axial direction of the valve core 2, thereby dispersing the pressure distribution; third water guide holes are provided at both ends of the water guide pipe 5, which are connected to the second water guide holes 11 to ensure that the water flow is smoothly introduced and discharged from the water guide pipe 5, maintaining the system pressure balance.

[0033] The valve core 2 has rotating shafts 3 at both ends along its length and a protrusion 13 on one side along its width. When the valve core 2 rotates, the protrusion 13 rotates accordingly and periodically contacts and separates from the sealing gasket 4. During valve closure, the protrusion 13 gradually presses against the sealing gasket 4, enhancing the sealing effect and preventing liquid leakage; while during valve opening, the protrusion 13 moves away from the surface of the sealing gasket 4, reducing the pressure on the sealing gasket 4 and preventing performance degradation due to prolonged fixed pressure. This dynamic adjustment mechanism effectively extends the service life of the sealing gasket 4 while maintaining the sealing performance of the water valve. Example

[0034] Based on Example 1, further refer to Figures 2-4 The end of the water guide pipe 5 that passes through the valve seat 1 is the mating end 14. The sealing gasket 4 is provided with a collar 8 that matches the mating end 14. The mating end 14 is inclined. This inclined design of the mating end 14 not only facilitates the insertion of the water guide pipe 5, but also creates a certain self-locking effect after the water guide pipe 5 is inserted, preventing it from falling off during use. At the same time, the collar 8 further enhances the sealing performance between the sealing gasket 4 and the water guide pipe 5, preventing liquid leakage.

[0035] Specifically, the mating end 14 is the part that guides the water pipe 5 into the valve seat 1 and into contact with the sealing gasket 4. It can be designed in a conical or wedge shape. The purpose of this design is to distribute the contact pressure through the inclined surface and avoid local stress concentration. The collar 8 is a structure on the sealing gasket 44 that mates with the mating end 14. It can be made of elastic material to enhance the sealing performance and provide a certain locking force. The inclined mating end 14 can gradually open the collar 8 during insertion, thereby forming a uniform pressure distribution.

[0036] In some embodiments, see Figure 3 The surface of the collar 89 is provided with grooves 9 distributed around its circumference, and a sealing ring 10 is fitted inside the grooves 9.

[0037] Specifically, groove 9 refers to an annular groove structure set along the circumferential direction on the surface of collar 8, which can be achieved by machining, injection molding, or laser cutting. Sealing ring 10 is an elastic annular sealing element, made of rubber, silicone, or other materials with good elasticity and corrosion resistance. Its purpose is to fill tiny gaps through elastic deformation, thereby enhancing sealing performance.

[0038] In detail, the collar 8 provides a continuous and balanced support base for the sealing ring 1011, effectively avoiding local stress concentration caused by the tilt of the mating end 14. After the sealing ring 10 is precisely embedded in the groove 9, its elastic properties dynamically compensate for the assembly deviation between the mating end 14 and the collar 8 during the operation of the valve core 2.

[0039] Furthermore, a first spring 7 is fitted onto the collar 8, with its two ends along its length abutting against the inner walls of the sealing gasket 4 and the valve seat 1, respectively. The first spring 7 creates an elastic buffer mechanism between the collar 8 and the sealing gasket 4. One end of the first spring 7 acts directly on the surface of the sealing gasket 4, ensuring that the sealing gasket 4 always adheres to the surface of the valve core 2 to maintain a sealed contact; the other end abuts against the inner wall of the valve seat 1, forming a stable fulcrum. When the valve core 2 rotates or water pressure fluctuates, the first spring 7 can automatically adjust its force according to the change in the tilt angle of the mating end 14, thereby preventing the sealing gasket 4 from bearing uneven pressure due to a rigid fixed connection. Example

[0040] Based on Example 1, in order to further improve the sealing performance of the water valve, please refer to... Figures 6-8The valve seat 1 has a receiving groove 17 on its inner wall, and a filling block 15 is provided in the receiving groove 17. An elastic mechanism is provided between the filling block 15 and the receiving groove 17. The filling block 15 is a hemispherical structure adapted to the second water guide hole 11. The receiving groove 17 is a groove 9 structure on the inner wall of the valve seat 1 for accommodating the filling block 15. Its shape and size are adapted to the filling block 15 to ensure that the filling block 15 can be stably installed in the receiving groove 17. The filling block 15 has a hemispherical structure, which allows it to better penetrate the second water guide hole 11, thereby effectively preventing water from seeping into the gap between the valve core 2 and the inner wall of the valve seat 1 when the valve is closed.

[0041] The elastic mechanism is a key component connecting the filling block 15 and the receiving groove 17. Its function is to provide elastic support and reset function for the filling block 15 during valve opening and closing. The elastic mechanism includes a contraction chamber 19, a sleeve 22, a moving column 18, and a second spring 20. The contraction chamber 19 is located inside the inner wall of the valve seat 1, with a through hole at one end facing the filling block 15 to provide a channel for the movement of the moving column 18. The sleeve 22 is inserted into the through hole, serving as a guide and support. One end of the moving column 18 is fixedly connected to the filling block 15, and the other end is inserted into the sleeve 22, enabling it to move within the contraction chamber 19. The two ends of the second spring 20 are respectively located between the contraction chamber 19 and the sleeve 22, providing elastic reset force for the filling block 15.

[0042] It should be noted that a sealing element is provided between the sleeve 22 and the inner wall of the perforation. This sealing element can be selected from... Rubber seals or O-rings are common sealing elements. Rubber seals have excellent elasticity, wear resistance, and corrosion resistance. They can effectively fill the tiny gaps between the sleeve and the inner wall of the perforation, preventing water or impurities from seeping in and ensuring the normal operation of the elastic mechanism.

[0043] When the valve is closed, the valve core 2 rotates to align the second water guide hole 11 with the receiving groove 17. The filling block 15, under the action of the elastic mechanism, protrudes and fills the gap between the second water guide hole 11 and the receiving groove 17, effectively preventing water seepage. When the valve is open, the valve core 2 rotates to displace the second water guide hole 11 from the receiving groove 17. The filling block 15, pushed by the valve core 2, compresses the elastic mechanism and retracts into the receiving groove 17, without affecting the normal flow of water. This design also locks the closed valve body, preventing accidental opening due to accidental contact or other reasons, thus enhancing the safety and reliability of the water valve.

[0044] In some embodiments, to further improve the stability and sealing performance of the filler block 15, a retaining ring 12 is provided on the inner wall of the second water guide hole 11, which is clamped around the filler block 15. The retaining ring 12 is an annular structure fixed on the inner wall of the second water guide hole 11, and its inner diameter is slightly smaller than the diameter of the filler block 15. It can tightly clamp the filler block 15 when it protrudes, preventing the filler block 15 from falling off or shifting due to water flow impact.

[0045] In some embodiments, to achieve precise control of the elastic mechanism, an electromagnet 21 is provided on the inner wall of the contraction cavity 19, and the interior of the contraction cavity 19 is filled with a working fluid. A drive unit 16, electrically connected to the electromagnet 21, is provided on the outer wall of the valve seat 1. The drive unit 16 can be a control switch or a circuit board used to control the on / off state of the electromagnet 21.

[0046] When the electromagnet 21 is energized, it generates a magnetic field that attracts the working fluid in the contraction cavity 19. This working fluid is a magnetorheological fluid. After the electromagnet 21 is energized, the magnetorheological fluid will convert into a solid and fill the gap in the second spring 20 and the limiting groove 24, thereby limiting the elastic deformation of the second spring 20 and keeping the filling block 15 in a stable position. When the electromagnet 21 is de-energized, the magnetorheological fluid returns to a liquid state, the second spring 20 regains its elasticity, and the filling block 15 can move freely under the action of the second spring 20. In this way, when the filling block 15 is inserted into the second water guide hole 11, by energizing the electromagnet 21, the filling block 15 can be kept stable, preventing shaking or displacement due to water flow impact or water pressure changes, and ensuring the sealing performance between the filling block 15 and the second water guide hole 11. Meanwhile, when the valve needs to be opened, simply de-energizing the electromagnet 21 restores the magnetorheological fluid to a liquid state, the second spring 20 regains its elasticity, and the filler block 15 retracts into the receiving groove 17 under the action of the second spring 20, without affecting the normal flow of water. This design not only improves the sealing performance of the water valve but also enhances its flexibility and reliability in use.

[0047] In some embodiments, to prevent the sleeve 22 from deflecting or falling off when moving within the perforation, a limiting block 23 is provided on the outer wall of the sleeve 22, and a limiting groove 24 adapted to the limiting block 23 is provided on the inner wall of the contraction cavity 19. The limiting block 23 is a protrusion 13 structure fixed on the outer wall of the sleeve 22, and the limiting groove 24 is a groove 9 structure formed on the inner wall of the contraction cavity 19. When the sleeve 22 moves within the perforation, the limiting block 23 slides within the limiting groove 24, thereby limiting the direction of movement of the sleeve 22 and preventing it from deflecting or falling off. This design improves the stability and reliability of the elastic mechanism.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water valve with a protective valve core sealing gasket, comprising a valve seat (1), wherein the valve seat (1) is a hollow structure, and water guide pipes (5) are respectively inserted on both sides of the valve seat (1), and a valve core (2) is provided inside the valve seat (1), wherein a sealing gasket (4) is provided between the valve core (2) and the water guide pipes (5), and the sealing gasket (4) abuts against the surface of the valve core (2), characterized in that, The sealing gasket (4) is attached to one side of the valve core (2) and has a first water guide hole (6). The valve core (2) has a second water guide hole (11) that is interconnected on both sides. The water guide pipe (5) has a third water guide hole that is interconnected at both ends. The valve core (2) is a cylindrical structure. The surface of the valve core (2) without the second water guide hole (11) is provided with a protrusion (13), which extends along the length of the valve core (2).

2. The water valve with a protective valve core sealing gasket according to claim 1, characterized in that, The end of the water pipe (5) inserted into the valve seat (1) is the docking end (14). The sealing gasket (4) is provided with a collar (8) that is compatible with the docking end (14). The docking end (14) is set at an angle.

3. The water valve with a protective valve core sealing gasket according to claim 2, characterized in that, The surface of the collar (8) is provided with grooves (9) distributed around its circumference, and a sealing ring (10) is fitted inside the grooves (9).

4. The water valve with a protective valve core sealing gasket according to claim 2, characterized in that, A first spring (7) is fitted on the collar (8), and the two ends of the first spring (7) in the length direction respectively abut against the inner wall of the sealing gasket (4) and the valve seat (1).

5. The water valve with a protective valve core sealing gasket according to claim 1, characterized in that, The valve seat (1) has a receiving groove (17) on its inner wall. The receiving groove (17) has a filling block (15) inside it, and an elastic mechanism is provided between the filling block (15) and the receiving groove (17). The filling block (15) is a hemispherical structure and is adapted to the second water guide hole (11).

6. The water valve with a protective valve core seal gasket according to claim 5, characterized in that, A retaining ring (12) is provided on the inner wall of the second water guide hole (11), and the retaining ring (12) is clamped in the filling block (15).

7. The water valve with a protective valve core sealing gasket according to claim 5, characterized in that, The elastic mechanism includes: A contraction cavity (19) is formed inside the inner wall of the valve seat (1), and a perforation is provided at one end of the contraction cavity (19) facing the filling block (15); Sleeve (22), the sleeve (22) is inserted into the through hole; A movable column (18) is fixedly connected at one end to the filling block (15), and the other end of the movable column (18) is inserted into the sleeve (22); The second spring (20) has its two ends located between the contraction cavity (19) and the sleeve (22).

8. The water valve with a protective valve core sealing gasket according to claim 7, characterized in that, The inner wall of the contraction chamber (19) is provided with an electromagnet (21), and the interior of the contraction chamber (19) is filled with working fluid. The outer wall of the valve seat (1) is provided with a drive part (16) that is electrically connected to the electromagnet (21).

9. The water valve with a protective valve core seal gasket according to claim 7, characterized in that, The outer wall of the sleeve (22) is provided with a limiting block (23), and the inner wall of the contraction cavity (19) is provided with a limiting groove (24) that is compatible with the limiting block (23).

10. The water valve with a protective valve core sealing gasket according to claim 1, characterized in that, The protrusion (13) has an arc-shaped structure and is in contact with the inner wall of the valve seat (1).

Images