Anti-leakage valve body for refrigerant of automobile air conditioner

Abstract

The utility model discloses a refrigerant leakproof valve body of an automobile air conditioner, and relates to the technical field of air conditioner valves. Comprising a valve seat, a valve head is arranged at the top of the valve seat, refrigerant pipes are arranged on the two sides of the valve seat and comprise an inlet pipe and an outlet pipe, air conditioner connecting pipes are arranged on the outer walls of the refrigerant pipes, connecting structures are fixedly connected to the outer walls of the refrigerant pipes, and the air conditioner connecting pipes are connected with the refrigerant pipes through the connecting structures. A sealing structure is arranged on the outer side of the air conditioner connecting pipe and the outer side of the connecting structure, the air conditioner connecting pipe and the refrigerant pipe are sealed through the sealing structure, the connecting structure comprises a connecting ring, the connecting ring is fixed to the outer wall of the refrigerant pipe, and an inserting groove is formed in the inner side of the connecting ring. According to the equipment, through circular array distribution of the inserting grooves, the locking rods and the like, stable support can be provided for connecting parts from multiple directions, external force interference from different directions can be effectively resisted, the phenomenon of loose connection is prevented, and the connection reliability and the sealing function are improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning valve technology, and in particular to an automotive air conditioning refrigerant leak prevention valve body. Background Technology

[0002] The automotive air conditioning system plays a crucial role in the use of a car, providing a comfortable temperature environment inside the vehicle. Refrigerant, as the key medium in the system, facilitates heat exchange through its circulation. However, currently, the valves in automotive air conditioning systems are prone to refrigerant leakage during long-term use due to various factors such as vibration, temperature changes, and refrigerant pressure fluctuations.

[0003] Refrigerant leakage not only reduces the cooling efficiency of automotive air conditioning systems and increases energy consumption, but can also pollute the environment. Some existing automotive air conditioning valve bodies have inadequate sealing designs. Under frequent pressure changes, the seals are prone to wear and aging, losing their sealing performance and leading to refrigerant leakage. This not only significantly reduces the cooling or heating efficiency of the air conditioning system but also pollutes the surrounding environment. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive air conditioning refrigerant anti-leakage valve body, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive air conditioning refrigerant leak-proof valve body, including a valve seat, a valve head provided on the top of the valve seat, refrigerant pipes provided on both sides of the valve seat, the refrigerant pipes being divided into an inlet pipe and an outlet pipe, an air conditioning connecting pipe provided on the outer wall of the refrigerant pipes, a connecting structure fixedly connected to the outer wall of the refrigerant pipes, the air conditioning connecting pipes being connected to the refrigerant pipes through the connecting structure, a sealing structure provided on the outer side of the air conditioning connecting pipes and the connecting structure, and the air conditioning connecting pipes being sealed to the refrigerant pipes through the sealing structure;

[0006] The connection structure includes a connecting ring fixed to the outer wall of the refrigerant pipe. A insertion groove is provided on the inner side of the connecting ring. An insertion tube is provided at the end of the air conditioning connecting pipe. The outer wall of the insertion tube is inserted into the inner wall of the insertion groove. A locking rod is movably connected to the inner wall of the connecting ring. A spring A is sleeved on the outer wall of the locking rod. One end of the spring A is fixedly connected to the inner wall of the connecting ring. A locking limit block is fixedly connected to the bottom end of the locking rod. A buckle plate is fixedly connected to the top end of the locking rod. A locking groove is provided on the outer wall of the insertion tube. The locking limit block cooperates with the locking groove to achieve locking.

[0007] Preferably, the outer wall of the front end of the insertion tube is provided with a guide slope, the guide slope is inclined from the outside to the inside along the insertion direction, and the outer wall of the insertion tube abuts against the outer wall of the locking limit block.

[0008] Preferably, the insertion slot, locking rod, spring A, buckle plate, and locking limit block are arranged in a circular array on the connecting ring.

[0009] Preferably, the top outer wall of the buckle plate has a buckle plate groove, and the outer wall of the connecting ring has a groove that matches the buckle plate.

[0010] Preferably, the sealing structure includes a clamp, a gasket is provided on the inner side of the clamp, a rubber pad is fixedly connected to one outer wall of the gasket, the outer wall of the rubber pad abuts against the outer wall of the air conditioning connecting pipe and the refrigerant pipe, a circular groove is formed on the inner side wall of the clamp, a spring B is fixedly connected to the inner wall of the circular groove, a connecting rod is fixedly connected to the outer wall of the spring B, and the other end of the connecting rod is fixedly connected to the outer wall of the gasket.

[0011] Preferably, the clamp covers the connection between the air conditioning connecting pipe and the refrigerant pipe, and the upper and lower clamps are fixed by limiting bolts.

[0012] Compared with related technologies, the automotive air conditioning refrigerant anti-leakage valve body provided by this utility model has the following beneficial effects:

[0013] 1. This utility model provides an automotive air conditioning refrigerant anti-leakage valve body. The guide slope at the front end of the insertion pipe guides it to smoothly insert into the insertion groove of the connecting ring. When inserted, the locking limit block is squeezed, which drives the locking rod to move upward. When the locking groove is aligned with the locking limit block, the locking is automatically completed, which facilitates the stable connection between the air conditioning connection pipe and the connection structure. Through the circular array distribution of the insertion groove, locking rod and other components, the connection part can be provided with stable support from multiple directions, effectively resisting external force interference from different directions, preventing the phenomenon of loose connection, and improving the reliability and sealing function of the connection.

[0014] 2. This utility model provides a refrigerant leak-proof valve body for automotive air conditioning. The gasket and rubber pad inside the clamp provide initial sealing. The spring B in the circular groove on the inner wall of the clamp pushes the gasket and rubber pad through the connecting rod to tightly fit the outer wall of the pipe, enhancing the sealing effect and effectively preventing refrigerant leakage. The spring B can also buffer the impact of pipe vibration and ensure the sealing stability under complex working conditions. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a cross-sectional structural diagram of the air conditioning connecting pipe and inlet / outlet pipe of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is an exploded view of the sealing structure of this utility model.

[0020] In the diagram: 1. Valve seat; 2. Valve head; 3. Refrigerant pipe; 4. Air conditioning connection pipe; 401. Connecting pipe; 402. Locking groove; 5. Connection structure; 501. Connecting ring; 502. Connecting groove; 503. Locking rod; 504. Spring A; 505. Buckle plate; 506. Locking limit block; 6. Sealing structure; 601. Clamp; 602. Limiting bolt; 603. Gasket; 604. Rubber pad; 605. Circular groove; 606. Connecting rod; 607. Spring B. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figures 1-5 This utility model provides a technical solution: an automotive air conditioning refrigerant anti-leakage valve body, including a valve seat 1, a valve head 2 is provided on the top of the valve seat 1, and refrigerant pipes 3 are provided on both sides of the valve seat 1. The refrigerant pipes 3 are divided into an inlet pipe and an outlet pipe. An air conditioning connecting pipe 4 is provided on the outer wall of the refrigerant pipe 3. A connecting structure 5 is fixedly connected to the outer wall of the refrigerant pipe 3. The air conditioning connecting pipe 4 and the refrigerant pipe 3 are connected through the connecting structure 5. A sealing structure 6 is provided on the outside of the air conditioning connecting pipe 4 and the connecting structure 5. The air conditioning connecting pipe 4 and the refrigerant pipe 3 are sealed through the sealing structure 6.

[0024] The connecting structure 5 includes a connecting ring 501, which is fixed to the outer wall of the refrigerant pipe 3. A insertion groove 502 is provided on the inner side of the connecting ring 501. An insertion pipe 401 is provided at the end of the air conditioning connecting pipe 4. The outer wall of the insertion pipe 401 is inserted into the inner wall of the insertion groove 502. A locking rod 503 is movably connected to the inner wall of the connecting ring 501. A spring A504 is sleeved on the outer wall of the locking rod 503. One end of the spring A504 is fixedly connected to the inner wall of the connecting ring 501. A locking limit block 506 is fixedly connected to the bottom end of the locking rod 503. A buckle plate 505 is fixedly connected to the top end of the locking rod 503. A locking groove 402 is provided on the outer wall of the insertion pipe 401. The locking limit block 506 cooperates with the locking groove 402 to achieve locking.

[0025] In this embodiment, when it is necessary to connect the air conditioning connecting pipe 4 and the refrigerant pipe 3, the insertion pipe 401 at the end of the air conditioning connecting pipe 4 is aligned with the insertion groove 502 on the inner side of the connecting ring 501 and inserted. During the insertion process, the outer wall of the insertion pipe 401 will gradually abut against the outer wall of the locking limit block 506. As the insertion pipe 401 goes deeper, the locking limit block 506 is squeezed, which drives the locking rod 503 to move upward against the elastic force of the spring A504. The buckle plate 505 at the top of the locking rod 503 also moves upward. When the insertion pipe 401 continues to be inserted until the locking groove 402 is aligned with the locking limit block 506, the spring A504 pushes the locking rod 503 downward, so that the locking limit block 506 is locked into the locking groove 402, thereby realizing the locking connection between the air conditioning connecting pipe 4 and the refrigerant pipe 3.

[0026] The outer wall of the front end of the insertion tube 401 is provided with a guide slope. The guide slope is inclined from the outside to the inside along the insertion direction. The outer wall of the insertion tube 401 abuts against the outer wall of the locking limit block 506. Since the outer wall of the front end of the insertion tube 401 is provided with a guide slope, which is inclined from the outside to the inside along the insertion direction, it makes it easier for the insertion tube 401 to push the locking limit block 506 upward, so that the insertion tube 401 can enter the insertion groove 502.

[0027] The insertion slot 502, locking rod 503, spring A 504, buckle plate 505, and locking limit block 506 are arranged in a circular array on the connecting ring 501. This uniformly distributed structure can ensure the stability and reliability of the connection.

[0028] The top outer wall of the buckle plate 505 has a buckle plate groove, and the outer wall of the connecting ring 501 has a groove that matches the buckle plate 505. When it is necessary to disassemble the air conditioning connecting pipe 4, the buckle plate 505 can be easily snapped upward through the buckle plate groove on the top outer wall of the buckle plate 505, which will drive the locking rod 503 to move upward, so that the locking limit block 506 is disengaged from the locking groove 402. The groove on the outer wall of the connecting ring 501 that matches the buckle plate 505 can be inserted into the buckle plate 505 after the connection is completed.

[0029] The sealing structure 6 includes a clamp 601, with a gasket 603 on the inner side of the clamp 601. A rubber gasket 604 is fixedly connected to one outer wall of the gasket 603, and the outer wall of the rubber gasket 604 abuts against the outer wall of the air conditioning connecting pipe 4 and the refrigerant pipe 3. A circular groove 605 is formed on the inner wall of the clamp 601, and a spring B607 is fixedly connected to the inner wall of the circular groove 605. A connecting rod 606 is fixedly connected to the outer wall of the spring B607, and the other end of the connecting rod 606 is fixedly connected to the outer wall of the gasket 603. The air conditioning connecting pipe 4 and the refrigerant pipe 3 are connected via... After the connection structure 5 is completed, the clamp 601 is wrapped around the connection between the air conditioning connection pipe 4 and the refrigerant pipe 3. The spring B607 pushes the connecting rod 606, and the connecting rod 606 pushes the gasket 603 and the rubber gasket 604 to further tighten the fit between the air conditioning connection pipe 4 and the outer wall of the refrigerant pipe 3, thereby forming a good sealing effect and preventing refrigerant leakage. The presence of the spring B607 not only provides continuous compressive force to ensure the tightness of the seal, but also buffers the impact caused by factors such as pipe vibration to a certain extent, ensuring the stability of the seal.

[0030] The clamp 601 covers the connection between the air conditioning connecting pipe 4 and the refrigerant pipe 3. The upper and lower clamps 601 are fixed by the limiting bolts 602. By tightening the limiting bolts 602, the clamping force of the clamp 601 on the connection between the air conditioning connecting pipe 4 and the refrigerant pipe 3 can be adjusted.

[0031] Working principle: When connecting the air conditioning connecting pipe 4 and the refrigerant pipe 3, align the insertion tube 401 at the end of the air conditioning connecting pipe 4 with the insertion groove 502 inside the connecting ring 501 and insert it. Because the outer wall of the front end of the insertion tube 401 has a guide slope that slopes from the outside to the inside along the insertion direction, this makes it easier for the insertion tube 401 to be inserted into the insertion groove 502. During insertion, the outer wall of the insertion tube 401 gradually abuts against the outer wall of the locking limit block 506. As the insertion progresses, the locking limit block 506 is compressed, causing the locking rod 503 to move upward against the elastic force of the spring A504. The buckle plate 505 at the top of the locking rod 503 also moves upward. When the insertion pipe 401 continues to be inserted until the locking groove 402 is aligned with the locking limit block 506, the spring A504 pushes the locking rod 503 downward, causing the locking limit block 506 to be engaged in the locking groove 402, thereby achieving a locking connection between the air conditioning connecting pipe 4 and the refrigerant pipe 3.

[0032] After the air conditioning connecting pipe 4 and the refrigerant pipe 3 are connected by the connecting structure 5, the clamp 601 is wrapped around the connection between the air conditioning connecting pipe 4 and the refrigerant pipe 3. The spring B607 pushes the connecting rod 606, and the connecting rod 606 pushes the gasket 603 and the rubber gasket 604 to further tighten the fit between the air conditioning connecting pipe 4 and the outer wall of the refrigerant pipe 3, thereby forming a good sealing effect and preventing refrigerant leakage. The presence of the spring B607 not only provides continuous compressive force to ensure the tightness of the seal, but also buffers the impact of factors such as pipe vibration to a certain extent, ensuring the stability of the seal.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automobile air conditioner refrigerant leakage prevention valve body, comprising a valve seat (1), the top of the valve seat (1) is provided with a valve head (2), the two sides of the valve seat (1) are provided with refrigerant pipes (3), the refrigerant pipes (3) are divided into inlet pipes and outlet pipes, characterized in that: An air conditioning connecting pipe (4) is provided on the outer wall of the refrigerant pipe (3). A connecting structure (5) is fixedly connected to the outer wall of the refrigerant pipe (3). The air conditioning connecting pipe (4) is connected to the refrigerant pipe (3) through the connecting structure (5). A sealing structure (6) is provided on the outside of the air conditioning connecting pipe (4) and the connecting structure (5). The air conditioning connecting pipe (4) and the refrigerant pipe (3) are sealed by the sealing structure (6). The connecting structure (5) includes a connecting ring (501), which is fixed to the outer wall of the refrigerant pipe (3). A insertion groove (502) is provided on the inner side of the connecting ring (501). An insertion pipe (401) is provided at the end of the air conditioning connecting pipe (4). The outer wall of the insertion pipe (401) is inserted into the inner wall of the insertion groove (502). A locking rod (503) is movably connected to the inner wall of the connecting ring (501). 3) A spring A (504) is sleeved on the outer wall. One end of the spring A (504) is fixedly connected to the inner wall of the connecting ring (501). A locking limit block (506) is fixedly connected to the bottom end of the locking rod (503). A buckle plate (505) is fixedly connected to the top end of the locking rod (503). A locking groove (402) is opened on the outer wall of the insertion tube (401). The locking limit block (506) cooperates with the locking groove (402) to achieve locking.

2. The automobile air conditioner refrigerant leakage prevention valve body according to claim 1, characterized in that: The outer wall of the insertion tube (401) is provided with a guide slope, which is inclined from the outside to the inside along the insertion direction. The outer wall of the insertion tube (401) abuts against the outer wall of the locking limit block (506).

3. The automobile air conditioner refrigerant leakage prevention valve body according to claim 1, characterized in that: The insertion slot (502), locking rod (503), spring A (504), buckle plate (505), and locking limit block (506) are arranged in a circular array on the connecting ring (501).

4. The automotive air conditioning refrigerant leak prevention valve body according to claim 1, characterized in that: The top outer wall of the buckle plate (505) is provided with a buckle plate groove, and the outer wall of the connecting ring (501) is provided with a groove that matches the buckle plate (505).

5. The automobile air conditioner refrigerant leakage prevention valve body according to claim 1, characterized in that: The sealing structure (6) includes a clamp (601), a gasket (603) is provided on the inner side of the clamp (601), a rubber pad (604) is fixedly connected to one outer wall of the gasket (603), the outer wall of the rubber pad (604) abuts against the outer wall of the air conditioning connecting pipe (4) and the refrigerant pipe (3), a circular groove (605) is opened on the inner side wall of the clamp (601), a spring B (607) is fixedly connected to the inner wall of the circular groove (605), a connecting rod (606) is fixedly connected to the outer wall of the spring B (607), and the other end of the connecting rod (606) is fixedly connected to the outer wall of the gasket (603).

6. The automobile air conditioner refrigerant leakage prevention valve body according to claim 5, characterized in that: The clamp (601) covers the connection between the air conditioning connecting pipe (4) and the refrigerant pipe (3), and the upper and lower clamps (601) are fixed by the limiting bolts (602).

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