Double-pipe expanded connection structure for automobile air conditioner pipeline

Abstract

The utility model provides a double-pipe expanded connection structure for an automobile air conditioner pipeline, which comprises a first pipe body, four guide columns are uniformly arranged on one side of the first pipe body, two control buttons are symmetrically arranged on the first pipe body, fixing pieces are arranged in the control buttons, and the first pipe body and the second pipe body are symmetrically arranged on the first pipe body. One end of each guide column is inserted into the first pipe body, one side, close to the guide columns, of the first pipe body is provided with a second pipe body, the other ends of the four guide columns are inserted into the second pipe body, and one side, close to the second pipe body, of the first pipe body is provided with a locking piece. And the maintenance time of the automobile air conditioner is reduced.

Description

Technical Field

[0001] The utility model discloses a double-tube expansion joint structure for automobile air-conditioning pipelines, belonging to the field of automobile air-conditioning pipeline expansion joints. Background Art

[0002] Automobile air conditioner refers to an air conditioning device installed on the car, which can cool, heat, ventilate and purify the air in the car, provide a comfortable riding environment for passengers, reduce the fatigue of the driver, and improve driving safety. The air conditioning device has become one of the symbols to measure whether the functions of the car are complete. In the prior art, the fixed block installed on the first tube body, when the first tube body is inserted into the second tube body, the spring will automatically drive the fixed block to reset, so that the fixed block is stuck in the limit groove opened on the inner wall of the second tube body. When the first tube body or the second tube body is subsequently inspected, it is difficult to insert the tool into the second tube body to remove the fixed block from the limit groove due to the limited operating space, which increases the difficulty of separating the first tube body from the second tube body and prolongs the inspection time of the automobile air conditioner. Therefore, it is necessary to design a double-tube expansion joint structure for automobile air conditioning pipelines that is easy to disassemble and separate the first tube body from the second tube body. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a double-tube expansion joint structure for automobile air-conditioning pipelines to solve the problems raised in the above-mentioned background technology. The utility model can quickly separate the first tube body and the second tube body, thereby reducing the maintenance time of the automobile air-conditioning.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a double-tube expansion joint structure for automobile air-conditioning pipelines, including a first tube body, four guide columns are evenly installed on one side of the first tube body, two control buttons are symmetrically installed on the first tube body, fixing parts are installed inside the control buttons, a second tube body is installed on the side of the first tube body close to the guide columns, the other ends of the four guide columns are inserted into the second tube body, and a locking part is installed on the side of the first tube body close to the second tube body.

[0005] Furthermore, the locking piece includes an insert sleeve, which is installed on a side of the first tube body close to the second tube body, a protective pad is installed on the outside of the insert sleeve, two movable grooves are symmetrically provided on the insert sleeve and the protective pad, a card block is installed inside the movable groove, a through hole is provided at one end of the card block away from the insert sleeve, the through hole is installed on a support rod, and the support rod is installed inside the first tube body.

[0006] Furthermore, two movable holes are symmetrically opened on the first tube body, the control button is installed in the movable hole, one end of the control button located inside the first tube body is installed on the support rod, a fixing part is installed on the side of the control button close to the support rod, a telescopic spring is installed on the support rod, and the telescopic spring is located between the two blocks.

[0007] Furthermore, a positioning rod is installed on one side of the support rod, and the other end of the positioning rod is fixedly installed on the first tube body. The positioning rod is located in the middle of the support rod, and the positioning rod is inserted in the gap between the telescopic springs.

[0008] Furthermore, four limiting grooves are evenly formed on one side of the second tube body close to the first tube body, the positions and sizes of the limiting grooves match the guide posts, and two positioning holes are symmetrically formed inside the second tube body.

[0009] Furthermore, the fixing part includes a block, two of the block are symmetrically installed on both sides of the control button, the top of the block is connected to the inner wall of the first tube body, a movable groove is opened on the side of the control button close to the support rod, the support rod is inserted in the movable groove, two limit blocks are symmetrically installed on the inner wall of the movable groove, sliding grooves are symmetrically opened on both sides of the support rod, the limit blocks are installed inside the sliding grooves, and a card block is installed at the bottom of the control button.

[0010] Furthermore, two installation slots are symmetrically provided at the bottom of the control button, and two circular holes are symmetrically provided on the inner walls of the two installation slots, and round rods are inserted in the circular holes. Two fixing blocks are symmetrically installed above the card block, and the fixing blocks are provided with installation holes. The round rods are inserted in the installation holes, and the round rods install the fixing blocks in the installation slots.

[0011] The beneficial effects of the utility model: the utility model is a double-tube expansion joint structure for automobile air-conditioning pipelines. By pressing the control button, the control button is driven to move along the support rod toward the inside of the first tube body, thereby driving one end of the clamping block to move out from the positioning hole opened on the second tube body, releasing the locking relationship between the first tube body and the second tube body, and improving the disassembly efficiency of the first tube body and the second tube body. After the separation is completed, the telescopic spring will rebound to drive the control button and the clamping block to reset.

[0012] The outer surface of the insertion sleeve is an arc-shaped structure, and a protective pad is installed on the outer surface of the insertion sleeve. The protective pad is made of rubber. When the insertion sleeve is inserted into the first tube body, the protective pad will automatically rebound to fill the gap between the insertion sleeve and the second tube body, so that the joint between the first tube body and the second tube body remains in a sealed state.

[0013] Through the cooperation of the stopper and the limit block, the control button can be ensured to move smoothly up and down along the outer surface of the support rod, while the movable range of the control button inside the first tube body is limited when the telescopic spring returns to the original position and rebounds, thereby preventing the impact force generated by the telescopic spring rebounding from pushing the control button out of the first tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of a double-tube expansion joint structure for automobile air-conditioning pipelines according to the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of a clamping block in a double-tube expansion joint structure for automobile air-conditioning pipelines according to the utility model;

[0017] Figure 3 This is a cross-sectional view of the second pipe body in a double-pipe expansion joint structure for automobile air-conditioning pipes of the utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of a control button in a double-tube expansion joint structure for automobile air-conditioning pipelines according to the utility model;

[0019] In the figure: 1. first tube body; 2. second tube body; 3. control button; 4. guide column; 5. movable hole; 6. protective pad; 7. movable slot; 8. support rod; 9. telescopic spring; 10. through hole; 11. installation sleeve; 12. clamping block; 13. positioning hole; 14. limiting slot; 15. installation slot; 16. round hole; 17. stopper; 18. movable slot; 19. limiting block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a double-tube expansion joint structure for automobile air-conditioning pipelines, comprising a first tube body 1, four guide columns 4 are evenly installed on one side of the first tube body 1, two control buttons 3 are symmetrically installed on the first tube body 1, and a fixing piece is installed inside the control button 3. A second tube body 2 is installed on the side of the first tube body 1 close to the guide column 4, and the other ends of the four guide columns 4 are inserted inside the second tube body 2. A locking piece is installed on the side of the first tube body 1 close to the second tube body 2, and the control button 3 can speed up the disassembly speed of the first tube body 1 and the second tube body 2.

[0022] See also Figure 2 and Figure 3 The locking member includes an insert sleeve 11, which is installed on the side of the first tube body 1 close to the second tube body 2, and a protective pad 6 is installed on the outside of the insert sleeve 11. Two movable grooves 7 are symmetrically provided on the insert sleeve 11 and the protective pad 6, and a card block 12 is installed inside the movable groove 7. A through hole 10 is provided at one end of the card block 12 away from the insert sleeve 11, and the through hole 10 is installed on the support rod 8, and the support rod 8 is installed inside the first tube body 1. Two movable holes 5 are symmetrically provided on the first tube body 1, and the control button 3 is installed in the movable hole 5. The end of the control button 3 located inside the first tube body 1 is installed on the support rod 8, and a fixing member is installed on the side of the control button 3 close to the support rod 8, and a telescopic spring 9 is installed on the support rod 8. The telescopic spring 9 is located between the two card blocks 12, and the protective pad 6 can automatically rebound to fill the gap between the insert sleeve 11 and the second tube body 2 so that the joint between the first tube body 1 and the second tube body 2 is in a sealed state.

[0023] See also Figure 2 and Figure 3 A positioning rod is installed on one side of the support rod 8, and the other end of the positioning rod is fixedly installed on the first tube body 1. The positioning rod is located in the middle of the support rod 8, and the positioning rod is inserted in the gap between the telescopic springs 9. Four limiting grooves 14 are evenly opened on the side of the second tube body 2 close to the first tube body 1. The position and size of the limiting grooves 14 match the guide column 4. Two positioning holes 13 are symmetrically opened inside the second tube body 2. The installation direction between the first tube body 1 and the second tube body 2 can be quickly positioned through the cooperation of the set guide column 4 and the limiting groove 14.

[0024] See also Figure 4 , the fixing member includes a block 17, two blocks 17 are symmetrically installed on both sides of the control button 3, the top of the block 17 is connected to the inner wall of the first tube body 1, a movable groove 18 is provided on the side of the control button 3 close to the support rod 8, the support rod 8 is inserted in the movable groove 18, and two limit blocks 19 are symmetrically installed on the inner wall of the movable groove 18, and slide grooves are symmetrically provided on both sides of the support rod 8. The limit blocks 19 are installed inside the slide grooves, and a card block 12 is installed at the bottom of the control button 3. Two installation slots 15 are symmetrically provided at the bottom of the control button 3. Two circular holes 16 are symmetrically provided on the inner walls of the two installation slots 15. A round rod is inserted inside the circular hole 16, and two fixing blocks are symmetrically installed above the card block 12. The fixing blocks are provided with installation holes, and the round rods are inserted in the installation holes. The round rods install the fixing blocks inside the installation slots 15. The stopper 17 can limit the position of the control button 3 moving inside the first tube body 1, thereby limiting the reset range of the telescopic spring 9, and preventing the telescopic spring 9 from rebounding excessively and pushing the control button 3 out of the first tube body 1.

[0025] Specific implementation method: By pressing the control button 3, the control button 3 is driven to move along the support rod 8 to the inside of the first tube body 1, thereby driving one end of the block 12 to move out from the positioning hole 13 opened on the second tube body 2, releasing the locking relationship between the first tube body 1 and the second tube body 2, and improving the disassembly efficiency of the first tube body 1 and the second tube body 2. After the separation is completed, the telescopic spring 9 will rebound to drive the control button 3 and the block 12 to reset. The outer surface of the insertion sleeve 11 is an arc structure, and the outer surface of the insertion sleeve 11 is installed with a protective pad 6, and the protective pad 6 is made of rubber. When the insertion sleeve 11 is inserted into the first tube body 1, the protective pad 6 will automatically rebound to fill the gap between the insertion sleeve 11 and the second tube body 2, so that the joint between the first tube body 1 and the second tube body 2 remains in a sealed state. Through the cooperation of the block 17 and the limit block 19, it can ensure that the control button 3 can move up and down smoothly along the outer surface of the support rod 8, while limiting the range of movement of the control button 3 inside the first tube body 1 when the telescopic spring 9 resets and rebounds, so as to prevent the impact force generated by the telescopic spring 9 when it rebounds from pushing the control button 3 out of the first tube body 1.

[0026] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-tube expansion joint structure for automobile air-conditioning pipelines, comprising a first tube body, characterized in that: Four guide columns are evenly installed on one side of the first tube body, two control buttons are symmetrically installed on the first tube body, a fixing piece is installed inside the control button, a second tube body is installed on the side of the first tube body close to the guide column, the other ends of the four guide columns are inserted inside the second tube body, a locking piece is installed on the side of the first tube body close to the second tube body, the locking piece includes an insertion sleeve, the insertion sleeve is installed on the side of the first tube body close to the second tube body, a protective pad is installed on the outside of the insertion sleeve, two movable grooves are symmetrically provided on the insertion sleeve and the protective pad, a card block is installed inside the movable groove, a through hole is provided on the end of the card block away from the insertion sleeve, the through hole is installed on the support rod, and the support rod is installed inside the first tube body.

2. A double-tube expansion joint structure for automobile air conditioning pipelines according to claim 1, characterized in that: Two movable holes are symmetrically opened on the first tube body, and the control button is installed in the movable holes. One end of the control button located inside the first tube body is installed on the support rod. A fixing piece is installed on the side of the control button close to the support rod. A telescopic spring is installed on the support rod, and the telescopic spring is located between the two blocks.

3. A double-tube expansion joint structure for automobile air conditioning pipelines according to claim 2, characterized in that: A positioning rod is installed on one side of the support rod, and the other end of the positioning rod is fixedly installed on the first tube body. The positioning rod is located in the middle of the support rod and is inserted in the gap between the telescopic springs.

4. The double-tube expansion joint structure for automobile air conditioning pipelines according to claim 1, characterized in that: Four limiting grooves are evenly formed on one side of the second tube body close to the first tube body. The positions and sizes of the limiting grooves match the guide posts. Two positioning holes are symmetrically formed inside the second tube body.

5. The double-tube expansion joint structure for automobile air conditioning pipelines according to claim 2, characterized in that: The fixing member includes a block, and the two blocks are symmetrically installed on both sides of the control button. The top of the block is connected to the inner wall of the first tube body. A movable groove is provided on the side of the control button close to the support rod. The support rod is inserted in the movable groove. Two limit blocks are symmetrically installed on the inner wall of the movable groove. Slide grooves are symmetrically provided on both sides of the support rod. The limit blocks are installed inside the slide grooves. A card block is installed at the bottom of the control button.

6. A double-tube expansion joint structure for automobile air conditioning pipelines according to claim 5, characterized in that: Two installation slots are symmetrically provided at the bottom of the control button, and two round holes are symmetrically provided on the inner walls of the two installation slots. Round rods are inserted in the round holes, and two fixing blocks are symmetrically installed above the card block. The fixing blocks are provided with installation holes, and the round rods are inserted in the installation holes. The round rods install the fixing blocks in the installation slots.

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