A connection structure for automotive air conditioning pipes

Abstract

This utility model discloses an automotive air conditioning pipe connection structure, belonging to the technical field of air conditioning accessories. It includes a male pressure plate, a female pressure plate, and a screw body. The male and female pressure plates are fastened together. The male pressure plate has a through hole on its side wall, and the female pressure plate has a through hole on its side wall. The through hole and the through hole are coaxial. The screw body passes through both the through hole and the through hole in one pass. A thread is provided in the through hole. The screw body includes a limiting cap, a screw rod, and several barbs. The screw rod is fixed to the bottom of the limiting cap, and the barbs are respectively provided on the side wall of the screw rod, each barb abutting against the thread. Two control cavities are provided on the side wall of the male pressure plate, and a limiting mechanism for restricting the screw body is installed in each control cavity. The screw in this application is a molded part, and through cooperation with the quick-connect limiting characteristic of the limiting mechanism, it achieves the effect of easy installation without tools or special processing.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning accessories technology, and in particular relates to a connection structure for automotive air conditioning pipes. Background Technology

[0002] Air conditioning pipe screws are fasteners used to fix and connect various pipes, valves, joints and other components in air conditioning systems. They are mainly used to fix copper pipes and aluminum pipes to brackets or the machine body to prevent loosening caused by vibration, or to ensure the sealed connection between refrigerant pipes and components such as expansion valves and compressors. They can also be used with rubber gaskets to reduce pipe vibration noise.

[0003] Traditional metal screws are used to fix air conditioning pipes, thereby ensuring smooth refrigerant flow within the air conditioning system and achieving the purpose of cooling the air inside the vehicle. During the installation of automotive air conditioning pipes, the screws used for the air conditioning pipes take the longest time, thus directly affecting the assembly efficiency of the car. Therefore, how to quickly and easily connect the air conditioning pipes has become a concern. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a connection structure for automotive air conditioning pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A connection structure for an automotive air conditioning pipe includes a male pressure plate, a female pressure plate, and a screw body. The male pressure plate and the female pressure plate are fastened together. The male pressure plate has a through hole on its side wall, and the female pressure plate has a through hole on its side wall. The through hole and the through hole are coaxial. The screw body passes through both the through hole and the through hole at once. The through hole has a thread. The screw body includes a limiting cap, a screw rod, and several barbs. The screw rod is fixed to the bottom of the limiting cap. Several barbs are respectively disposed on the side wall of the screw rod and abut against the thread. The side wall of the male pressure plate has two control cavities located on both sides of the through hole. A limiting mechanism for restricting the screw body is installed in the control cavity.

[0007] Preferably, the side wall of the limiting cap is provided with a positioning groove, and the top of the male pressure plate is provided with a fixing groove, and the positioning groove matches the fixing groove.

[0008] Preferably, the two opposing barb sidewalls are provided with grooves, and the orientation of the two grooves is consistent with the orientation of the positioning groove.

[0009] Preferably, the limiting mechanism includes a side insert rod and a bottom block. The side insert rod is slidably connected to the side wall of the control cavity and is inserted into a groove. The bottom block is fixedly disposed at the bottom of the side insert rod. The end of the control cavity facing the mother pressure plate is open. The top of the mother pressure plate is provided with two top blocks, and the side wall of the top block abuts against the side wall of the bottom block.

[0010] Preferably, one end of the side insert rod inserted into the groove is arc-shaped, and a telescopic spring is provided at the end of the side insert rod away from the groove. The other end of the telescopic spring is fixedly connected to the side wall of the control cavity.

[0011] Preferably, the bottom block facing the top block is arc-shaped, and the top block facing the bottom block is also arc-shaped.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] This application achieves rapid installation through the cooperation between the screw and the male and female pressure plates. The screw body is a molded part, which saves time and effort in manufacturing, is not easily deformed, will not rust, and does not require special surface treatment. Moreover, after the male and female pressure plates are engaged together, the top block will press the side insert into the groove of the barb side wall, thereby making the barb firmly restricted between the male and female pressure plates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structural connection of the screw body in this utility model;

[0016] Figure 3 This is a cross-sectional view of the male pressure plate and the female pressure plate in this utility model;

[0017] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0018] In the diagram: 1. Male pressure plate; 2. Female pressure plate; 3. Through hole; 4. Thread; 5. Limit cap; 6. Screw; 7. Barb; 8. Positioning groove; 9. Fixing groove; 10. Groove; 11. Side insert rod; 12. Bottom block; 13. Top block; 14. Telescopic spring. Detailed Implementation

[0019] 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.

[0020] like Figures 1-4As shown, an automotive air conditioning pipe connection structure includes a male pressure plate 1, a female pressure plate 2, and a screw body. The male pressure plate 1 and the female pressure plate 2 are fastened together. The male pressure plate 1 has a through hole 3 on its side wall, and the female pressure plate 2 has a through hole on its side wall. The through hole 3 and the through hole are coaxial. The screw body passes through the through hole 3 and the through hole in one pass. The through hole has a thread 4. The screw body includes a limiting cap 5, a screw 6, and several barbs 7. The limiting cap 5 has a positioning groove 8 on its side wall, and the male pressure plate 1 has a fixing groove 9 on its top. The positioning groove 8 and the fixing groove 9 match, allowing the operator to easily adjust the screw body to the correct position.

[0021] The screw 6 is fixed to the bottom of the limit cap 5. Several barbs 7 are respectively set on the side wall of the screw 6. Several barbs 7 abut against the thread 4. The side walls of two opposite barbs 7 are provided with grooves 10. The orientation of the two grooves 10 is the same as the orientation of the positioning groove 8. Therefore, after the worker aligns the positioning groove 8 with the fixing groove 9, the position of the groove 10 can also be adjusted to a suitable position.

[0022] Two control cavities are provided on the side wall of the male pressure plate 1. The two control cavities are located on both sides of the through hole 3. A limiting mechanism for limiting the screw body is installed in the control cavity. The limiting mechanism includes a side insertion rod 11 and a bottom block 12. The side insertion rod 11 is slidably connected to the side wall of the control cavity and is inserted into the groove 10. The bottom block 12 is fixedly set at the bottom of the side insertion rod 11. The end of the control cavity facing the female pressure plate 2 is open. Two top blocks 13 are provided on the top of the female pressure plate 2. The side wall of the top block 13 abuts against the side wall of the bottom block 12. The end of the bottom block 12 facing the top block 13 is arc-shaped, and the end of the top block 13 facing the bottom block 12 is also arc-shaped. The arc shape can facilitate the top block 13 to squeeze the bottom block 12 to the side wall of the control cavity.

[0023] The side insertion rod 11 is inserted into the groove 10. One end of the side insertion rod 11 is arc-shaped. A telescopic spring 14 is provided at the end of the side insertion rod 11 away from the groove 10. The other end of the telescopic spring 14 is fixedly connected to the side wall of the control cavity. The force applied by the telescopic spring 14 to the side insertion rod 11 will cause the side insertion rod 11 to maintain a tendency to move towards the middle position of the perforation 3.

[0024] The working principle is as follows: First, the screw body is inserted into the through hole 3, so that the screw 6 and the barb 7 pass through the through hole 3, and the positioning groove 8 on the side wall of the limit cap 5 is aligned with the fixing groove 9 on the side wall of the male pressure plate 1. Then, the male pressure plate 1 is installed on the female pressure plate 2. During this process, the screw 6 and the barb 7 will be inserted into the through hole, so that the barb 7 and the side wall of the thread 4 abut against each other.

[0025] When the barb 7 passes the side insert rod 11, it will squeeze the side insert rod 11, causing the telescopic spring 14 to be compressed. After the barb 7 passes the side insert rod 11, the side insert rod 11 will return to its initial position under the action of the telescopic spring 14. After the male pressure plate 1 is fully installed on the female pressure plate 2, the side insert rod 11 will be inserted into the groove 10 on the side wall of the barb 7. At this time, the top block 13 will also squeeze the position of the bottom block 12, thereby fixing the position of the side insert rod 11 and ensuring its fixing effect.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connection structure for an automotive air conditioning pipe, comprising a male pressure plate (1), a female pressure plate (2), and a screw body, wherein the male pressure plate (1) and the female pressure plate (2) are fastened together, a through hole (3) is provided on the side wall of the male pressure plate (1), and a through hole is provided on the side wall of the female pressure plate (2), the through hole (3) and the through hole are coaxial, and the screw body passes through the through hole (3) and the through hole in one pass, characterized in that, The through hole is provided with a thread (4). The screw body includes a limiting cap (5), a screw (6) and several barbs (7). The screw (6) is fixed to the bottom of the limiting cap (5). Several barbs (7) are respectively provided on the side wall of the screw (6). Several barbs (7) abut against the thread (4). The male pressure plate (1) has two control cavities on its side wall. The two control cavities are respectively located on both sides of the through hole (3). The control cavities are provided with a limiting mechanism for limiting the screw body.

2. The automobile air conditioning pipe connecting structure according to claim 1, characterized by The limiting cap (5) has a positioning groove (8) on its side wall, and the male pressure plate (1) has a fixing groove (9) on its top. The positioning groove (8) matches the fixing groove (9).

3. The automobile air conditioning pipe connecting structure according to claim 2, characterized by The two opposing barbs (7) have grooves (10) on their sidewalls, and the orientation of the two grooves (10) is the same as that of the positioning groove (8).

4. The automobile air conditioning pipe connecting structure according to claim 3, characterized by The limiting mechanism includes a side insert rod (11) and a bottom block (12). The side insert rod (11) is slidably connected to the side wall of the control cavity. The side insert rod (11) is inserted into the groove (10). The bottom block (12) is fixedly installed at the bottom of the side insert rod (11). The end of the control cavity facing the mother pressure plate (2) is open. The top of the mother pressure plate (2) is provided with two top blocks (13). The side wall of the top block (13) abuts against the side wall of the bottom block (12).

5. The automobile air conditioning pipe connecting structure according to claim 4, wherein The side insert rod (11) is inserted into the groove (10) with one end having an arc design. The side insert rod (11) is provided with a telescopic spring (14) at the end away from the groove (10), and the other end of the telescopic spring (14) is fixedly connected to the side wall of the control cavity.

6. The automobile air conditioning pipe connecting structure according to claim 4, characterized by The bottom block (12) is arc-shaped at the end facing the top block (13), and the top block (13) is also arc-shaped at the end facing the bottom block (12).

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