Automobile expansion valve seat with clamping groove

Abstract

The utility model provides an automobile expansion valve seat with a clamping groove, and relates to the technical field of automobile expansion valves, the automobile expansion valve seat comprises a quick release sleeve and a fixing sleeve, a first limiting groove is formed in the position, close to the left side, of the outer surface of the quick release sleeve, and a fixing ring is fixedly connected to the outer surface of the fixing sleeve; a limiting ring is fixedly connected to the position, close to the middle, of the inner surface wall of the fixing sleeve, a plurality of second limiting grooves are formed in the position, close to the right side, of the outer surface of the fixing sleeve at equal intervals, and round balls are arranged between the inner surface walls of the second limiting grooves. According to the expansion valve, through the unique clamping groove structural design, rapid installation and detachment of the expansion valve seat are achieved, it is guaranteed that the expansion valve coil can be conveniently and firmly fixed to the valve seat, and the overall stability, reliability and maintenance efficiency of the expansion valve are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive expansion valves, in particular to an automotive expansion valve seat with a card slot. Background Technique

[0002] The automotive expansion valve is an important component in the automotive air-conditioning refrigeration system. Its main function is to throttle and depressurize the refrigerant and regulate the flow rate. Through the expansion valve, the high-pressure liquid refrigerant becomes a low-pressure mist-like refrigerant, thereby achieving the refrigeration effect. The automotive expansion valve seat is a component in the expansion valve that supports and fixes the valve core, providing a stable foundation and guidance for the movement of the valve core.

[0003] In the prior art, the installation method between the valve seat and the valve body of the automotive expansion valve generally involves corresponding threaded holes designed on the valve seat and the valve body, and the valve seat is fastened to the valve body through screws (such as hexagon screws). During installation, it is necessary to accurately align and tighten the screws one by one, which increases the complexity of installation and the required time. When it is necessary to disassemble or replace the valve seat, it also increases the complexity and cost of maintenance. Therefore, in view of the above problems, we propose a new type of automotive expansion valve seat with a card slot. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that in the prior art, the installation method between the valve seat and the valve body of the automotive expansion valve generally involves corresponding threaded holes designed on the valve seat and the valve body, and the valve seat is fastened to the valve body through screws (such as hexagon screws). During installation, it is necessary to accurately align and tighten the screws one by one, which increases the complexity of installation and the required time. When it is necessary to disassemble or replace the valve seat, it also increases the complexity and cost of maintenance. Therefore, the automotive expansion valve seat with a card slot is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: including a quick-release sleeve and a fixed sleeve. A first limiting groove is opened at a position near the left side of the outer surface of the quick-release sleeve. A fixed ring is fixedly connected to the outer surface of the fixed sleeve. A limiting ring is fixedly connected to the inner wall of the fixed sleeve near the middle position. A plurality of second limiting grooves are equidistantly opened at a position near the right side of the outer surface of the fixed sleeve. A circular ball is arranged between the inner walls of the second limiting grooves.

[0006] Preferably, the positions of the first limiting groove and the second limiting groove correspond to each other, and an installation sleeve is slidably sleeved on the outer surface of the fixed sleeve.

[0007] Preferably, a limiting block is fixedly connected to the inner wall of the installation sleeve near the left edge position, and the right surface of the limiting block is attached to the left surface of the fixed ring.

[0008] Preferably, a spring is provided near the middle of the inner surface wall of the mounting sleeve, and the left end of the spring is fixedly connected to the right surface of the fixing ring.

[0009] Preferably, a movable groove is provided on the inner surface wall of the mounting sleeve near the left side, and the left surface of the movable groove is fixedly connected to the right end of the spring.

[0010] Preferably, a mounting base is fixedly connected to the left surface of the fixing sleeve, and a valve body is threadedly connected to the outer surface of the quick-release sleeve near the right side.

[0011] Preferably, a first oblique block is fixedly connected to a position of the inner surface wall of the quick-release sleeve near the left edge, and a second oblique block is fixedly connected to a position of the inner surface wall of the fixed sleeve near the right edge.

[0012] Preferably, the left surface of the first inclined block matches the right surface of the second inclined block, and the outer surface of the mounting sleeve is provided with anti-slip grooves near the left side.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the device not only realizes the rapid installation and disassembly of the expansion valve seat through the unique slot structure design, but also ensures that the expansion valve coil can be conveniently and firmly fixed on the valve seat, which greatly improves the overall stability, reliability and maintenance efficiency of the expansion valve.

[0015] 2. In the present invention, the cooperation between the first inclined block and the second inclined block is conducive to the guiding effect when the quick release sleeve is inserted into the fixed sleeve, and the anti-slip pattern is to increase the friction of the installation sleeve to prevent it from slipping when being moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a valve seat of an automobile expansion valve with a slot provided by the utility model;

[0017] Figure 2 This is a three-dimensional view from another angle of the automobile expansion valve seat with a slot proposed by the utility model;

[0018] Figure 3 This is a partial structural development diagram of the automobile expansion valve seat with a slot proposed by the utility model;

[0019] Figure 4 This is a partial structural sectional expansion diagram of a valve seat of an automobile expansion valve with a slot proposed by the utility model;

[0020] Figure 5 The utility model provides a partial structural cross-sectional view of a valve seat of an automobile expansion valve with a clamping groove.

[0021] Legend: 1. Installation base; 2. Quick-release sleeve; 22. First inclined block; 23. First limiting groove; 3. Fixed sleeve; 31. Fixed ring; 32. Second limiting groove; 33. Limiting ring; 34. Round ball; 35. Second inclined block; 4. Installation sleeve; 41. Anti-slip pattern; 42. Spring; 43. Movable groove; 44. Limiting block; 5. Valve body. Detailed implementation

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0023] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1: As Figures 1 - 5 shown, the present invention provides an automotive expansion valve seat with a card slot, including a quick-release sleeve 2 and a fixed sleeve 3. A first limiting groove 23 is opened at a position near the left side of the outer surface of the quick-release sleeve 2. A fixed ring 31 is fixedly connected to the outer surface of the fixed sleeve 3. A limiting ring 33 is fixedly connected to the inner wall of the fixed sleeve 3 near the middle. A plurality of second limiting grooves 32 are equidistantly opened at a position near the right side of the outer surface of the fixed sleeve 3. A round ball 34 is arranged between the inner walls of the second limiting grooves 32. The positions of the first limiting groove 23 and the second limiting groove 32 correspond to each other. An installation sleeve 4 is slidably sleeved on the outer surface of the fixed sleeve 3. A limiting block 44 is fixedly connected to the inner wall of the installation sleeve 4 near the left edge. The right surface of the limiting block 44 is attached to the left surface of the fixed ring 31. A spring 42 is arranged on the inner wall of the installation sleeve 4 near the middle. The left end of the spring 42 is fixedly connected to the right surface of the fixed ring 31. A movable groove 43 is arranged on the inner wall of the installation sleeve 4 near the left side. The left surface of the movable groove 43 is fixedly connected to the right end of the spring 42. An installation base 1 is fixedly connected to the left surface of the fixed sleeve 3. A valve body 5 is threadedly connected to a position near the right side of the outer surface of the quick-release sleeve 2.

[0025] The effect achieved by the entire embodiment 1 is that when using the device, the valve body 5 of the automobile expansion valve is firmly connected to the quick-release sleeve 2 through a threaded interface to ensure a tight connection between the valve body 5 and the quick-release device. Subsequently, the valve body 5 of the expansion valve is accurately docked and fixed on the mounting base 1 to ensure a solid foundation for the overall installation of the expansion valve. By pushing the mounting sleeve 4 to the left, the limit block 44 gradually moves away from the left surface of the fixing ring 31 during the movement. During this process, the spring 42 in the movable groove 43 is compressed and moves to the left synchronously to make room for the insertion of the quick-release sleeve 2. When the quick-release sleeve 2 is fully inserted into the left side of the mounting sleeve 4, its left surface contacts the right surface of the limit ring 33 inside the fixing sleeve 3, and the slot mechanism begins to work. At this time, the first limit groove 23 is accurately aligned with the second limit groove 32, and a plurality of round balls 34 slide down from the inner surface wall of the second limit groove 32 under the action of gravity, and their bottoms fall into the first The top of the limiting groove 23 is flush with the top of the second limiting groove 32, thereby achieving a stable locking of the quick-release sleeve 2. After the installation sleeve 4 is released, the spring 42 automatically rebounds due to its inherent elastic force, pushing the installation sleeve 4 to return to the right, further enhancing the connection stability between the quick-release sleeve 2 and the fixed sleeve 3. During disassembly, the operation process is opposite to that of installation, that is, by pushing the installation sleeve 4 to the right again, the limiting block 44 is away from the fixed ring 31, and the spring 42 is compressed again. As the installation sleeve 4 moves, the round ball 34 escapes from the first limiting groove 23 and returns to the second limiting groove 32. At this time, the quick-release sleeve 2 can be easily separated from the expansion valve body 5 to achieve quick disassembly. The device adopts a unique slot structure design, which not only realizes the rapid installation and disassembly of the expansion valve seat, but also ensures that the expansion valve coil can be conveniently and firmly fixed on the valve seat, greatly improving the overall stability, reliability and maintenance efficiency of the expansion valve.

[0026] Example 2: Figures 1 - 5 As shown, the inner wall of the quick-release sleeve 2 is fixedly connected to a first inclined block 22 near the left edge, the inner wall of the fixed sleeve 3 is fixedly connected to a second inclined block 35 near the right edge, the left surface of the first inclined block 22 matches the right surface of the second inclined block 35, and the outer surface of the mounting sleeve 4 is provided with anti-slip grooves 41 near the left side.

[0027] The effect achieved by the entire embodiment 2 is that the cooperation between the first inclined block 22 and the second inclined block 35 is conducive to the guiding effect when the quick release sleeve 2 is inserted into the fixed sleeve 3, and the anti-slip pattern 41 is to increase the friction of the installation sleeve 4 to prevent it from slipping when being moved.

[0028] Working principle: When using this device, the valve body 5 of the automobile expansion valve is firmly connected to the quick-release sleeve 2 through a threaded interface to ensure a tight connection between the valve body 5 and the quick-release device. Subsequently, the valve body 5 of the expansion valve is accurately docked and fixed on the mounting base 1 to ensure a stable foundation for the overall installation of the expansion valve. By pushing the mounting sleeve 4 to the left, the limit block 44 gradually moves away from the left surface of the fixing ring 31 during the movement. During this process, the spring 42 in the movable groove 43 is compressed and moves to the left synchronously to make room for the insertion of the quick-release sleeve 2. When the quick-release sleeve 2 is fully inserted into the left side of the mounting sleeve 4, its left surface contacts the right surface of the limit ring 33 inside the fixing sleeve 3, and the slot mechanism begins to work. At this time, the first limit groove 23 is precisely aligned with the second limit groove 32, and a plurality of round balls 34 slide down from the inner surface wall of the second limit groove 32 under the action of gravity, and the bottom thereof falls into the first limit groove 23, and the top is aligned with the top of the second limit groove 32. The spring 42 automatically rebounds due to its inherent elastic force and pushes the mounting sleeve 4 back to the right, further enhancing the connection stability between the quick-release sleeve 2 and the fixed sleeve 3. During disassembly, the operation process is opposite to that of installation, that is, by pushing the mounting sleeve 4 to the right again, the round ball 34 is disengaged from the first limiting groove 23 and returned to the second limiting groove 32. At this time, the quick-release sleeve 2 can be easily separated from the expansion valve body 5 to achieve quick disassembly. The device is designed with a unique slot structure, which not only realizes the rapid installation and disassembly of the expansion valve seat, but also ensures that the expansion valve coil can be conveniently and firmly fixed on the valve seat, greatly improving the overall stability, reliability and maintenance efficiency of the expansion valve. The cooperation of the first inclined block 22 and the second inclined block 35 is conducive to the guiding effect when the quick-release sleeve 2 is inserted into the fixed sleeve 3, and the anti-slip pattern 41 is to increase the friction of the mounting sleeve 4 to prevent it from slipping during the movement.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A valve seat for an automobile expansion valve with a slot, comprising a quick-release sleeve (2) and a fixed sleeve (3), characterized in that: The outer surface of the quick-release sleeve (2) is provided with a first limiting groove (23) near the left side, the outer surface of the fixed sleeve (3) is fixedly connected with a fixing ring (31), the inner surface wall of the fixed sleeve (3) is fixedly connected with a limiting ring (33) near the middle, and the outer surface of the fixed sleeve (3) is provided with a plurality of second limiting grooves (32) at equal intervals near the right side, and round balls (34) are arranged between the inner surface walls of the second limiting grooves (32).

2. The automobile expansion valve seat with a slot according to claim 1, characterized in that: The positions of the first limiting groove (23) and the second limiting groove (32) correspond to each other, and a mounting sleeve (4) is provided on the outer surface sliding sleeve of the fixing sleeve (3).

3. The automobile expansion valve seat with a slot according to claim 2, characterized in that: A limiting block (44) is fixedly connected to the inner surface wall of the installation sleeve (4) near the left edge, and the right surface of the limiting block (44) is in contact with the left surface of the fixing ring (31).

4. The automobile expansion valve seat with a slot according to claim 3, characterized in that: A spring (42) is provided near the middle of the inner surface wall of the installation sleeve (4), and the left end of the spring (42) is fixedly connected to the right surface of the fixing ring (31).

5. The automobile expansion valve seat with a slot according to claim 4, characterized in that: A movable groove (43) is provided on the inner surface wall of the installation sleeve (4) near the left side, and the left surface of the movable groove (43) is fixedly connected to the right end of the spring (42).

6. The automobile expansion valve seat with a slot according to claim 5, characterized in that: The left surface of the fixed sleeve (3) is fixedly connected to a mounting base (1), and the outer surface of the quick-release sleeve (2) is threadedly connected to a valve body (5) at a position close to the right side.

7. The automobile expansion valve seat with a slot according to claim 6, characterized in that: A first inclined block (22) is fixedly connected to the inner surface wall of the quick-release sleeve (2) near the left edge, and a second inclined block (35) is fixedly connected to the inner surface wall of the fixed sleeve (3) near the right edge.

8. The automobile expansion valve seat with a slot according to claim 7, characterized in that: The left surface of the first inclined block (22) matches the right surface of the second inclined block (35), and the outer surface of the mounting sleeve (4) is provided with anti-slip grooves (41) near the left side.

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