Wear-resistant valve core for automobile valve

Abstract

The wear-resistant valve element for the automobile valve comprises a shell, an inlet hole is formed in the bottom of the shell, an installation ring is installed on one side of the shell, a valve rod is arranged on one side of the interior of the shell in a sleeved mode, a flow guide groove is formed in the inner side of the shell, an annular sealing plate is arranged on one side of the inner side of the flow guide groove, and the valve rod is connected with the annular sealing plate. A conical sealing head and a wear-resistant rubber sleeve are arranged on one side of the outer side of the valve rod, and the wear-resistant rubber sleeve horizontally moves on the inner side of the flow guide groove; the wear-resistant rubber sleeve is promoted to horizontally move in the flow guide groove through the structural cooperation of the wear-resistant rubber sleeve arranged on the outer side face of the valve rod and the conical sealing head, the wear-resistant performance of contact between the wear-resistant rubber sleeve and the flow guide groove is improved through the structural cooperation of the wear-resistant rubber, and when the valve is closed, the wear-resistant rubber sleeve is used for closing the inlet hole structure; and meanwhile, under the blocking structure of the conical sealing head and the annular sealing plate, the sealing effect of the valve element in the valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive valve technology, specifically to a wear-resistant valve core for automotive valves. Background Technology

[0002] As a control structure for fluids within a vehicle, automotive valves play a role in controlling the flow of fluids or their speed. They are generally divided into gas valves and liquid valves. In existing technology, valves used to control liquids are subjected to relatively large liquid pressures, and since automobiles are frequently used machines, valves and internal valve cores are mostly made of all-metal structures.

[0003] Authorization announcement number CN215059640U discloses a wear-resistant valve core for automotive valves. This device mainly uses an alumina ceramic inner sleeve on the inner wall of the outer shell and an alumina ceramic ring on the surface of the valve stem. The ceramic sleeve serves as the anti-wear medium on the surface of the valve stem, and the ceramic inner sleeve serves as the anti-wear medium on the inner wall of the outer shell, reducing the wear caused by the relative movement of the valve stem and the outer shell, thus enhancing wear resistance. However, in actual use, the device still has the following drawbacks:

[0004] The aforementioned patent primarily uses ceramic rings and ceramic inner sleeves as anti-wear structures to reduce wear on the valve stem. However, in actual use, the valve opening and closing operation is adjusted according to requirements. Over time, wear will occur inside the valve core, which can easily lead to leakage at the flow channel inside the valve body when the valve is closed, reducing the valve's internal sealing performance. Furthermore, when closing the valve, the valve stem may be accidentally touched, causing the stem to rotate, affecting the stability of the valve core's sealing state and further increasing the risk of valve leakage. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant valve core for automotive valves to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant valve core for automotive valves, comprising a housing, an inlet hole at the bottom of the housing, an installation ring on one side of the housing, a valve stem fitted inside the housing, a flow guide groove on the inner side of the housing, an annular sealing plate on one side of the inner side of the flow guide groove, and a conical sealing head and a wear-resistant rubber sleeve on the outer side of the valve stem, wherein the wear-resistant rubber sleeve moves horizontally inside the flow guide groove;

[0007] The mounting ring has an annular sealing groove on its inner side. An annular sealing ring is installed on the side of the valve stem away from the conical sealing head, and the annular sealing ring is sealed and engaged with the rotating seat. A rotating seat is installed on one side of the annular sealing ring. A guide groove is opened on the inner side of the annular sealing ring. A retaining hole is symmetrically opened on the inner side of the annular sealing groove. A bidirectional threaded rod is sleeved on the inner side of the rotating seat. L-shaped positioning blocks are symmetrically arranged on the outer side of the bidirectional threaded rod, and the L-shaped positioning blocks are limited to move within the guide groove. A handle is sleeved at the middle position on one side of the rotating seat. A bevel gear set that meshes and matches is provided on the outer side of the handle and the middle position of the outer side of the bidirectional threaded rod. The two sets of L-shaped positioning blocks are inserted and fixed with the retaining holes. A sealing gasket is installed on the outer side of the valve stem near the annular sealing ring.

[0008] Preferably, both the conical sealing head and the wear-resistant rubber sleeve are made of silicone rubber. The wear-resistant rubber sleeve is sealed with the inlet hole to improve the wear resistance of the valve body structure adjustment and increase the service life of the structure.

[0009] Preferably, a flow guide port is provided on one side of the housing, and the conical sealing head and the annular sealing plate are sealed together and mutually sealed with the flow guide port, thereby increasing the sealing performance of the structure in the closed state.

[0010] Preferably, the inner side of the flow channel is provided with a wear-resistant layer to improve the wear resistance of the flow channel and reduce the wear caused by long-term use of the structure.

[0011] Preferably, the two sets of L-shaped positioning blocks have threaded holes inside, and the threaded holes are adapted with bidirectional threaded rods, which facilitates the adjustment of the position of the L-shaped positioning blocks by using the threaded engagement of the threaded holes and bidirectional threaded rods.

[0012] Preferably, the two sets of L-shaped positioning blocks move horizontally inside the annular sealing ring and guide groove, and the two sets of L-shaped positioning blocks are fixed by inserting into the locking hole. The insertion and fixing of the structure improves the fixing strength of the valve in the closed state.

[0013] Preferably, an annular groove is provided at the edge between the mounting ring and the housing, and the sealing gasket is adapted to the annular groove to enhance the sealing performance of the structure in the closed state.

[0014] The wear-resistant valve core for automotive valves proposed in this utility model has at least the following beneficial effects:

[0015] 1. The wear-resistant rubber sleeve and conical sealing head on the outer side of the valve stem work together to move the wear-resistant rubber sleeve horizontally within the guide groove. This structural fit improves the wear resistance of the contact between the wear-resistant rubber sleeve and the guide groove. When the valve is closed, the wear-resistant rubber sleeve closes the inlet hole, achieving the valve's closing function. Simultaneously, the sealing structure of the conical sealing head and annular sealing plate enhances the sealing effect of the valve core, preventing internal leakage and improving the sealing strength and service life of the automotive valve.

[0016] 2. The sealing and locking of the annular sealing ring and the annular sealing groove are used to enhance the reinforcement function of the valve core in the closed state. The two sets of L-shaped positioning blocks inside the rotating seat are used to lock the valve core in the locked state. This allows for secondary fixation by locking the valve core in the locked state, preventing accidental loosening of the valve core and increasing the sealing performance and stability of the valve in the closed state. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a schematic diagram of the valve in the normally open state of this utility model;

[0019] Figure 3 This is a schematic diagram of the valve in its normally closed state according to this utility model;

[0020] Figure 4 For the present utility model Figure 3 An enlarged schematic diagram of the structure at point A.

[0021] In the diagram: 1. Housing; 2. Inlet hole; 3. Mounting ring; 4. Rotary seat; 5. Annular sealing ring; 6. Annular sealing groove; 7. Conical sealing head; 8. Wear-resistant rubber sleeve; 9. Snap hole; 10. Valve stem; 11. Guide groove; 12. Annular sealing plate; 13. L-shaped positioning block; 14. Bevel gear set; 15. Throttle; 16. Bidirectional threaded rod; 17. Guide groove; 18. Sealing gasket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4The present invention provides an embodiment of a wear-resistant valve core for automotive valves, comprising a housing 1, an inlet hole 2 at the bottom of the housing 1, an installation ring 3 on one side of the housing 1, a valve stem 10 sleeved on one side inside the housing 1, a guide groove 11 on the inner side of the housing 1, and an annular sealing plate 12 on one side inside the guide groove 11. A conical sealing head 7 and a wear-resistant rubber sleeve 8 are respectively provided on one side outside the valve stem 10, and the wear-resistant rubber sleeve 8 moves horizontally inside the guide groove 11. A wear-resistant layer is provided inside the guide groove 11 to improve the wear resistance of the guide groove 11 and reduce the wear caused by long-term use of the structure.

[0024] Both the conical sealing head 7 and the wear-resistant rubber sleeve 8 are made of silicone rubber. The wear-resistant rubber sleeve 8 is sealed with the inlet hole 2 to improve the wear resistance of the valve body structure adjustment and increase the service life of the structure.

[0025] An annular sealing groove 6 is provided on the inner side of the mounting ring 3. An annular sealing ring 5 is installed on the side of the valve stem 10 away from the conical sealing head 7, and the annular sealing ring 5 is sealed and engaged with the rotating seat 4. A rotating seat 4 is installed on one side of the annular sealing ring 5. A guide groove 17 is provided on the inner side of the annular sealing ring 5. A locking hole 9 is symmetrically provided on the inner side of the annular sealing groove 6. A bidirectional threaded rod 16 is sleeved on the inner side of the rotating seat 4. An L-shaped positioning block 13 is symmetrically provided on the outer side of the bidirectional threaded rod 16, and the L-shaped positioning block 13 is limited to move within the guide groove 17. A handle 15 is sleeved at the middle position on one side of the rotating seat 4. A bevel gear set 14 that meshes with the outer side of the handle 15 and the middle position of the outer side of the bidirectional threaded rod 16 is provided. The two sets of L-shaped positioning blocks 13 are inserted and fixed with the locking hole 9. A sealing gasket 18 is installed on the outer side of the valve stem 10 near the annular sealing ring 5.

[0026] The two sets of L-shaped positioning blocks 13 have threaded holes inside, and the threaded holes are threaded with bidirectional threaded rods 16, which facilitates the adjustment of the position of the L-shaped positioning blocks 13 by using the threaded holes and the bidirectional threaded rods 16. An annular groove is provided at the edge between the mounting ring 3 and the housing 1, and the sealing gasket 18 is sealed to the annular groove to enhance the sealing performance of the structure in the closed state.

[0027] Example 1, as Figure 1-3 As shown, a flow guide port is provided on one side inside the housing 1. The conical sealing head 7 and the annular sealing plate 12 are sealed together and mutually sealed with the flow guide port. When the valve is closed by adjusting the structure of the valve stem 10, the conical sealing head 7 and the annular sealing plate 12 are brought into sealing contact, thereby completely sealing the flow channel on the side of the housing 1. At the same time, the wear-resistant rubber sleeve 8 and the inlet hole 2 are closed to make the flow channel of the valve tightly closed, so as to avoid gas and liquid leakage.

[0028] Example 2, as Figure 2-4As shown, the two sets of L-shaped positioning blocks 13 move horizontally inside the annular sealing ring 5 and the guide groove 17. The two sets of L-shaped positioning blocks 13 are inserted and fixed with the locking hole 9. Through the limiting and guiding of the two sets of L-shaped positioning blocks 13 in the guide groove 17, the two sets of guide grooves 17 are driven into the interior of the locking hole 9, which further locks and fixes the annular sealing ring 5 and the annular sealing groove 6, improving the sealing performance and stability of the valve in the closed state.

[0029] Working principle: This automotive valve uses a wear-resistant valve core;

[0030] In actual use of automotive valves, rotating the valve stem 10 moves the wear-resistant rubber sleeve 8 and the conical sealing head 7 inside the guide groove 11. When the wear-resistant rubber sleeve 8 and the conical sealing head 7 are on the right side inside the housing 1, the valve body is open, facilitating the introduction and flow of gas and liquid through the inlet hole 2. When the wear-resistant rubber sleeve 8 and the conical sealing head 7 are adjusted to the leftmost position, the wear-resistant rubber sleeve 8 closes the inlet hole 2, and the conical sealing head 7 seals and protects the flow passage inside the valve, ensuring a complete seal of the closed valve and preventing gas and liquid leakage. Simultaneously, the wear-resistant rubber sleeve 8... The wear-resistant materials of the rubber sleeve 8, the conical sealing head 7, and the guide groove 11 improve the long-term service life of the valve core inside the valve. After the valve is closed, rotating the handle 15 drives the bevel gear set 14 to mesh, causing the bevel gear set 14 to drive the bidirectional threaded rod 16 to rotate. Then, as the bidirectional threaded rod 16 rotates, the two sets of L-shaped positioning blocks 13 move towards each other, causing the L-shaped positioning blocks 13 to engage with the inside of the locking hole 9, preventing the valve core from loosening in the closed state. This effectively improves the sealing performance and stability of the engagement between the annular sealing ring 5 and the annular sealing groove 6, and enhances the overall opening and closing adjustment versatility of the valve.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A wear-resistant valve core for automotive valves, comprising a housing (1), characterized in that: The bottom of the housing (1) is provided with an inlet hole (2), and an installation ring (3) is installed on one side of the housing (1). A valve stem (10) is sleeved on one side inside the housing (1). A guide groove (11) is provided on the inner side of the housing (1), and an annular sealing plate (12) is provided on one side inside the guide groove (11). A conical sealing head (7) and a wear-resistant rubber sleeve (8) are respectively provided on one side outside the valve stem (10), and the wear-resistant rubber sleeve (8) moves horizontally inside the guide groove (11). An annular sealing groove (6) is provided on the inner side of the mounting ring (3). An annular sealing ring (5) is installed on the side of the valve stem (10) away from the conical sealing head (7), and the annular sealing ring (5) is sealed and engaged with the rotating seat (4). A rotating seat (4) is installed on one side of the annular sealing ring (5). A guide groove (17) is provided on the inner side of the annular sealing ring (5). A retaining hole (9) is symmetrically provided on the inner side of the annular sealing groove (6). A bidirectional threaded rod (16) is sleeved on the inner side of the rotating seat (4). (16) is symmetrically provided with L-shaped positioning blocks (13) on the outside, and the L-shaped positioning blocks (13) are limited to move inside the guide groove (17). A handle (15) is sleeved at the middle position on one side of the rotating seat (4). A bevel gear set (14) meshes with the middle position on the outside of the handle (15) and the double-threaded rod (16). The two sets of L-shaped positioning blocks (13) are inserted and fixed with the card hole (9). A sealing gasket (18) is installed on the side of the valve stem (10) near the annular sealing ring (5).

2. A wear resistant valve trim for automotive valves as claimed in claim 1, wherein: The conical sealing head (7) and the wear-resistant rubber sleeve (8) are both made of silicone rubber, and the wear-resistant rubber sleeve (8) is sealed to the inlet hole (2).

3. A wear resistant valve trim for automotive valves as claimed in claim 1, wherein: The housing (1) has a flow guide port on one side inside, and the conical sealing head (7) and the annular sealing plate (12) are sealed together and mutually sealed with the flow guide port.

4. The wear-resistant valve core for automotive valves according to claim 1, characterized in that: The inner side of the guide groove (11) is provided with a wear-resistant layer.

5. The wear-resistant valve core for automotive valves according to claim 1, characterized in that: The two sets of L-shaped positioning blocks (13) have threaded holes inside, and the threaded holes are threaded with bidirectional threaded rods (16).

6. The wear-resistant valve core for automotive valves according to claim 1, characterized in that: The two sets of L-shaped positioning blocks (13) move horizontally inside the annular sealing ring (5) and the guide groove (17), and the two sets of L-shaped positioning blocks (13) are inserted and fixed with the card hole (9).

7. The wear-resistant valve core for automotive valves according to claim 1, characterized in that: An annular groove is provided at the edge between the mounting ring (3) and the housing (1), and the sealing gasket (18) is adapted to seal the annular groove.

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