Mounting assembly for inlet and outlet pipes of expansion valve of automobile air conditioner

Abstract

The utility model discloses a mounting assembly for an inlet pipe and an outlet pipe of an expansion valve of an automobile air conditioner, which relates to the technical field of automobile parts and comprises an expansion valve body, a first pipeline and a second pipeline are mounted on two sides of the expansion valve body, and mounting guide mechanisms are mounted outside the first pipeline and the second pipeline. A second guide bracket and a fixed pressing plate are mounted outside a first pipeline and a second pipeline through clamping of a fixing mechanism, the first pipeline and the second pipeline are placed on the first guide bracket, a threaded rod is rotated to drive a moving block to move, the second guide bracket and a guide frame move along with the moving block, and the moving direction of the second guide bracket is guided; the first pipeline and the second pipeline can be accurately installed in the expansion valve body, perpendicularity and sealing performance are guaranteed, and the problem of refrigerant leakage or system performance reduction is prevented.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to an assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve. Background Technology

[0002] The expansion valve is an important component of the refrigeration system, typically installed between the liquid receiver and the evaporator. The expansion valve throttles the medium-temperature, high-pressure liquid refrigerant, turning it into a low-temperature, low-pressure wet vapor. The refrigerant then absorbs heat in the evaporator to achieve a cooling effect. The expansion valve is connected to other air conditioning components via an assembly.

[0003] For example, CN220540431U discloses an expansion valve inlet and outlet pipe assembly, including a control mechanism. A fixing mechanism is fixedly connected to one side of the outer wall of the control mechanism. The control mechanism includes a valve body. A limit hole is opened on one side of the outer wall of the valve body. A push rod is movably inserted into the inner surface of the limit hole. A temperature sensor is fixedly installed on one side of the outer wall of the push rod. A rubber pad A is fixedly installed on the outer surface of the push rod. A low-pressure pipe is movably sleeved on the outer surface of the rubber pad A.

[0004] In the existing technology, since the connection between the inlet and outlet pipes and the expansion valve needs to ensure a certain degree of verticality and sealing, the lack of a guide structure for the installation of the inlet and outlet pipes during the installation process results in deviations in the connection of the inlet and outlet pipes, which can lead to refrigerant leakage or a decrease in system performance. Utility Model Content

[0005] The purpose of this utility model is to solve the problem in the prior art where the lack of a guide structure for the installation of the inlet and outlet pipes during the installation process leads to deviations in the connection of the inlet and outlet pipes. Therefore, this utility model proposes an assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve, comprising an expansion valve body, a first pipe and a second pipe installed on both sides of the expansion valve body, an installation guide mechanism installed on the outside of the first pipe and the second pipe, a fixing mechanism installed on one side of the installation guide mechanism, the installation guide mechanism including a positioning frame, the positioning frame installed on the outside of the expansion valve body, a first guide bracket fixedly connected to both ends of the positioning frame, a fixing plate fixedly connected to one side of the first guide bracket, a slot opened on one side of the fixing plate, a threaded rod rotatably connected to one end of the slot, a moving block threadedly connected to the outside of the threaded rod, and a second guide bracket fixedly connected to one end of the moving block.

[0007] Preferably, a guide frame is fixedly connected to one side of the second guide bracket, and the interior of the guide frame is slidably connected to the exterior of the fixed plate.

[0008] Preferably, one end of the second guide bracket is rotatably connected to a fixed pressure plate.

[0009] Preferably, the fixing mechanism includes a first fixing block, one end of which is fixedly connected to the outside of the fixing pressure plate, and the other end of which is fixedly connected to a clamping body.

[0010] Preferably, a locking tooth block is engaged on the inner side of the clamp, and a sliding block is fixedly connected to one end of the locking tooth block.

[0011] Preferably, a guide rod is slidably connected to one side of the sliding block, and connecting blocks are fixedly connected to both ends of the guide rod. One side of the connecting block is fixedly connected to one side of the second guide bracket.

[0012] Preferably, a spring is sleeved on the outside of the guide rod, and the two ends of the spring are respectively installed on one side of the sliding block and one side of the connecting block.

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

[0014] 1. In this utility model, the second guide bracket and the fixed pressure plate are installed on the outside of the first pipe and the second pipe by a fixing mechanism. The first pipe and the second pipe are placed on the first guide bracket. Rotating the threaded rod drives the moving block to move, and the second guide bracket and the guide frame move accordingly. The movement direction of the second guide bracket is guided, so that the first pipe and the second pipe can be accurately installed inside the expansion valve body, ensuring verticality and sealing, and preventing refrigerant leakage or system performance degradation.

[0015] 2. In this utility model, the fixed pressure plate is rotated to overlap the second guide bracket on one side, and the spring in the compressed state works to drive the sliding block to move. The open end of the locking tooth block is inserted into the inside of the clamp, thereby installing the second guide bracket and the fixed pressure plate on the outside of the first pipe and the second pipe, positioning the first pipe and the second pipe. Through the locking between the clamp and the locking tooth block, it can be quickly installed on the first pipe and the second pipe, and it is also easy to disassemble, improving the efficiency of use. Attached Figure Description

[0016] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of an assembly for mounting the inlet and outlet pipes of an automotive air conditioning expansion valve.

[0017] Figure 2 This utility model provides a second three-dimensional structural diagram of an assembly for mounting the inlet and outlet pipes of an automotive air conditioning expansion valve.

[0018] Figure 3This utility model provides a schematic diagram of the connection structure of the installation guide mechanism for the installation assembly of the inlet and outlet pipes of an automotive air conditioning expansion valve.

[0019] Figure 4 This utility model provides a schematic diagram of the connection structure of the fixing mechanism for the installation assembly of the inlet and outlet pipes of an automotive air conditioning expansion valve.

[0020] Figure 5 This utility model proposes an assembly for mounting the inlet and outlet pipes of an automotive air conditioning expansion valve. Figure 4 A magnified schematic diagram of the structure at point A.

[0021] Legend: 1. Expansion valve body; 2. Mounting guide mechanism; 21. Positioning frame; 22. First guide bracket; 23. Slot; 24. Moving block; 25. Fixing plate; 26. Threaded rod; 27. Guide frame; 28. Second guide bracket; 29. ​​Fixing pressure plate; 3. Fixing mechanism; 31. First fixing block; 32. Clamp; 33. Clamping tooth block; 34. Connecting block; 35. Spring; 36. Guide rod; 37. Sliding block; 4. First pipe; 5. Second pipe. Detailed Implementation

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

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: Figure 1 - Figure 5As shown, this utility model provides an assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve, including an expansion valve body 1. A first pipe 4 and a second pipe 5 are installed on both sides of the expansion valve body 1. An installation guide mechanism 2 is installed outside the first pipe 4 and the second pipe 5. A fixing mechanism 3 is installed on one side of the installation guide mechanism 2. The installation guide mechanism 2 includes a positioning frame 21, which is installed on the outside of the expansion valve body 1. A first guide bracket 22 is fixedly connected to both ends of the positioning frame 21. A fixing plate 25 is fixedly connected to one side of the first guide bracket 22. A slot 23 is formed on one side of the fixing plate 25. A threaded rod 26 is rotatably connected to one end of the slot 23. A moving block 24 is threadedly connected to the outside of the threaded rod 26. A second guide bracket 28 is fixedly connected to one end of the moving block 24. A guide frame 27 is fixedly connected to one side of the second guide bracket 28. The interior of the guide frame 27 is slidably connected to the exterior of the fixing plate 25. A fixing pressure plate 29 is rotatably connected to one end of the second guide bracket 28.

[0025] The second guide bracket 28 and the fixed pressure plate 29 are installed on the outside of the first pipe 4 and the second pipe 5 by the fixing mechanism 3. One end of the first pipe 4 and the second pipe 5 are placed on the first guide bracket 22. Rotating the threaded rod 26 drives the threaded moving block 24 to move, and the second guide bracket 28 and the guide frame 27 move accordingly. The guide frame 27 slides outside the fixed plate 25, and the second guide bracket 28 is fixed to make linear movement. The movement direction of the second guide bracket 28 can be guided, so that the first pipe 4 and the second pipe 5 can be accurately inserted into the expansion valve body 1, ensuring verticality and sealing, and preventing refrigerant leakage or system performance degradation.

[0026] Example 2: Figure 1 , Figure 4 and Figure 5 As shown, the fixing mechanism 3 includes a first fixing block 31, one end of which is fixedly connected to the outside of the fixing pressure plate 29, and the other end of which is fixedly connected to a clamping body 32; a clamping tooth block 33 is engaged on the inner side of the clamping body 32, and a sliding block 37 is fixedly connected to one end of the clamping tooth block 33; a guide rod 36 is slidably connected to one side of the sliding block 37, and a connecting block 34 is fixedly connected to both ends of the guide rod 36; one side of the connecting block 34 is fixedly connected to one side of the second guide bracket 28; a spring 35 is sleeved on the outside of the guide rod 36, and the two ends of the spring 35 are respectively installed on one side of the sliding block 37 and one side of the connecting block 34.

[0027] The overall effect of this embodiment is that when the fixed pressure plate 29 is rotated to overlap the second guide bracket 28, the compressed spring 35 works, driving the sliding block 37 to move. The sliding block 37 slides outside the guide rod 36, and the fixed sliding block 37 makes linear motion. The movement of the sliding block 37 drives the movement of the locking tooth block 33. The open end of the locking tooth block 33 has elastic deformation capability. The open end of the locking tooth block 33 is inserted into the inside of the clamp 32, fixing the position of the second guide bracket 28 and the fixed pressure plate 29. Thus, the second guide bracket 28 and the fixed pressure plate 29 are installed outside the first pipe 4 and the second pipe 5, positioning the first pipe 4 and the second pipe 5. Through the engagement between the clamp 32 and the locking tooth block 33, they can be quickly installed on the first pipe 4 and the second pipe 5, while also being easy to disassemble, improving the efficiency of use.

[0028] The method of use and working principle of this device: Rotate the fixed pressure plate 29 to overlap the second guide bracket 28 on one side. The spring 35, which is in a compressed state, works, driving the sliding block 37 to move. The locking tooth block 33 moves, and the open end of the locking tooth block 33 is locked into the inside of the clamp 32, fixing the position of the second guide bracket 28 and the fixed pressure plate 29. Thus, the second guide bracket 28 and the fixed pressure plate 29 are installed on the outside of the first pipe 4 and the second pipe 5, positioning the first pipe 4 and the second pipe 5. One end of the first pipe 4 and the second pipe 5 is placed on the first guide bracket 22. Rotate the threaded rod 26, driving the moving block 24 to move. The second guide bracket 28 and the guide frame 27 move accordingly, guiding the movement direction of the second guide bracket 28, so that the first pipe 4 and the second pipe 5 are accurately installed inside the expansion valve body 1.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An assembly for mounting inlet and outlet pipes of an automotive air conditioning expansion valve, comprising an expansion valve body (1), characterized in that: The expansion valve body (1) is equipped with a first pipe (4) and a second pipe (5) on both sides. An installation guide mechanism (2) is installed on the outside of the first pipe (4) and the second pipe (5). A fixing mechanism (3) is installed on one side of the installation guide mechanism (2). The installation guide mechanism (2) includes a positioning frame (21). The positioning frame (21) is installed on the outside of the expansion valve body (1). A first guide bracket (22) is fixedly connected to both ends of the positioning frame (21). A fixing plate (25) is fixedly connected to one side of the first guide bracket (22). A slot (23) is opened on one side of the fixing plate (25). A threaded rod (26) is rotatably connected to one end of the slot (23). A moving block (24) is threadedly connected to the outside of the threaded rod (26). A second guide bracket (28) is fixedly connected to one end of the moving block (24).

2. The assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve according to claim 1, characterized in that: A guide frame (27) is fixedly connected to one side of the second guide bracket (28), and the interior of the guide frame (27) is slidably connected to the exterior of the fixing plate (25).

3. The assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve according to claim 1, characterized in that: One end of the second guide bracket (28) is rotatably connected to a fixed pressure plate (29).

4. The assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve according to claim 1, characterized in that: The fixing mechanism (3) includes a first fixing block (31), one end of which is fixedly connected to the outside of the fixing pressure plate (29), and the other end of which is fixedly connected to a clamp (32).

5. The assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve according to claim 4, characterized in that: The clamp (32) has a toothed block (33) engaged on its inner side, and a sliding block (37) is fixedly connected to one end of the toothed block (33).

6. The assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve according to claim 5, characterized in that: A guide rod (36) is slidably connected to one side of the sliding block (37), and a connecting block (34) is fixedly connected to both ends of the guide rod (36). One side of the connecting block (34) is fixedly connected to one side of the second guide bracket (28).

7. The assembly for installing the inlet and outlet pipes of an automotive air conditioning expansion valve according to claim 6, characterized in that: A spring (35) is sleeved on the outside of the guide rod (36), and the two ends of the spring (35) are respectively installed on one side of the sliding block (37) and one side of the connecting block (34).

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