Quick connector device for automobile air conditioner pipeline
By designing a quick-connect device for spherical tubes and flow path switching components, the problem of the single function of existing connector devices is solved, and flexible connection and convenient testing of air conditioning pipelines are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHUANGRONG AUTO AIR CONDITION MFG
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-12
AI Technical Summary
Existing automotive air conditioning pipe connectors have limited functionality, making it difficult to flexibly adjust their routing and facilitating inspection.
A quick-connect device was designed, comprising a spherical tube, a connector tube, a flow path switching component, and a sealing component. Through the cooperation of the spherical seat, rotating shaft, worm gear, and worm wheel, the flow path can be flexibly switched and sealed, making it suitable for the connection and testing of automotive air conditioning pipes.
It improves the convenience of connecting automotive air conditioning pipes and the efficiency of testing, and enables flexible adjustment and sealing of air conditioning pipes.
Smart Images

Figure CN224229329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive air conditioning parts technology, specifically to a quick connector device for automotive air conditioning pipes. Background Technology
[0002] Since the various components of a car's air conditioning system are generally installed in different parts of the car, the car's air conditioning piping is like the blood vessels in the human body, responsible for connecting these scattered components so that a complete car air conditioning system can work in an orderly manner. The car's air conditioning piping is usually composed of aluminum pipes, air conditioning hoses and other piping accessories.
[0003] In the process of connecting automotive air conditioning pipes, connectors are typically used to achieve the connection; however, existing connectors still have some drawbacks:
[0004] Most of the connectors in the existing technology only have a unidirectional flow channel. Due to the small size of the air conditioning unit in the front compartment of a car, it is inconvenient to flexibly adjust the direction of the air conditioning pipes when arranging them. At the same time, the connectors in the existing technology have a single function and are not suitable for testing the air conditioning pipes in cars. Utility Model Content
[0005] In order to solve the above problems, the purpose of this utility model is to provide a quick connector device for automotive air conditioning pipes.
[0006] To solve the above technical problems, the present invention adopts the following technical solution: a quick connector device for automotive air conditioning pipes, including a spherical tube, connector tubes are fixedly arranged around the spherical tube, a flow path switching component is arranged on the spherical tube, and a sealing component is arranged on the connector tube;
[0007] The flow path switching component includes a spherical seat, on which a flow channel is provided, the flow channel passing through the spherical seat, and two rotating shafts rotatably mounted at the center of the spherical tube, the spherical seat being fixedly disposed between the two rotating shafts;
[0008] A support plate is fixedly installed on the outer wall of the spherical tube, and a worm gear is rotatably installed on the support plate. A worm wheel is fixedly installed at one end of the rotating shaft away from the spherical seat, and the worm gear and the worm wheel are meshed together.
[0009] Preferably, a fixing ring is fixedly provided on the outer wall of one end of the connector tube, and the fixing ring is provided with a plurality of assembly holes arranged in a ring array.
[0010] Preferably, a rubber sleeve is fixedly provided on the outer wall of the spherical seat, and the outer wall of the rubber sleeve is in movable contact with the inner wall of the spherical tube.
[0011] Preferably, a knob is fixedly provided at one end of the worm gear.
[0012] Preferably, the sealing assembly includes end caps, four of which are provided. A threaded plug is fixedly provided on one side of each end cap. A threaded groove is provided on the inner wall of one end of the connector tube. The threaded plug is rotatably installed on one end of the connector tube through the threaded groove. A rubber seat is fixedly provided on one end of the threaded plug. The outer wall of the rubber seat is in movable contact with the inner wall of the connector tube.
[0013] Preferably, the outer wall of the end cap is provided with anti-slip texture.
[0014] Preferably, the end cap has a hexagonal groove on the side away from the threaded plug.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In this invention, by setting a spherical tube and four connector tubes, and in conjunction with the flow path switching component and the sealing component, this connector device can be fixed inside the car or fixed on the car air conditioning pipe testing equipment. The connection is flexible and convenient, improving the convenience of car air conditioning pipe connection operations, and at the same time improving the convenience of car air conditioning pipe testing operations. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a structural schematic diagram of a quick-connect device for automotive air conditioning pipes according to the present invention.
[0019] Figure 2 This is a schematic diagram of the separation structure of the end cap, threaded plug, rubber seat, and connector tube of this utility model.
[0020] Figure 3 This is a schematic diagram of the cross-section of the spherical tube and the connector tube, as well as the structure of the flow path switching assembly of this utility model.
[0021] Figure 4 This is a schematic diagram of the connection structure of the flow path switching component of this utility model.
[0022] In the diagram: 1. Spherical tube; 11. Connector tube; 12. Fixing ring; 13. Assembly hole; 2. Flow path switching assembly; 21. Spherical seat; 22. Flow channel; 23. Rubber sleeve; 24. Rotating shaft; 25. Support plate; 26. Worm; 27. Worm wheel; 28. Knob; 3. Sealing assembly; 31. End cap; 32. Threaded plug; 33. Threaded groove; 34. Rubber seat; 35. Anti-slip texture; 36. Hexagonal groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example: Figure 1-4 As shown, this utility model provides a quick-connect device for automotive air conditioning pipes, including a spherical tube 1. Connector tubes 11 are fixedly arranged around the spherical tube 1. A fixing ring 12 is fixedly arranged on the outer wall of one end of each connector tube 11. The fixing ring 12 has a plurality of mounting holes 13 arranged in a ring array. By using the fixing ring 12 and the mounting holes 13, and through the action of mounting bolts and the mounting holes 13, this connector device can be fixed inside a vehicle or to an automotive air conditioning pipe testing device. During the connection process of the automotive air conditioning pipes, it can... The automotive air conditioning pipes can be connected to any two corresponding connector pipes 11. It can also be used for testing and inspection of automotive air conditioning equipment. It is flexible and convenient. The spherical pipe 1 is equipped with a flow path switching component 2. By setting the flow path switching component 2, the flow path switching component 2 can switch the flow path in the spherical pipe 1, so that two corresponding connector pipes 11 are in a flowing state and the other two corresponding connector pipes 11 are in a closed state. The connector pipe 11 is equipped with a sealing component 3. By setting the sealing component 3, the sealing component 3 can seal the ends of the four connector pipes 11 and can be disassembled individually.
[0025] The flow path switching component 2 includes a spherical seat 21 with a flow channel 22 that runs through it. The flow channel 22 allows the refrigerant in the automotive air conditioning system to flow through it. Two rotating shafts 24 are rotatably mounted at the center of the spherical tube 1. The spherical seat 21 is fixedly positioned between the two rotating shafts 24. A rubber sleeve 23 is fixedly mounted on the outer wall of the spherical seat 21. The outer wall of the rubber sleeve 23 is in contact with the inner wall of the spherical tube 1. The rubber sleeve 23 improves the sealing between the spherical seat 21 and the inner wall of the spherical tube 1, while also ensuring the smoothness of the rotation of the spherical seat 21. By driving the rotating shafts 24 to rotate, the spherical seat 21 can rotate, thereby allowing the flow channel 22 to correspond to or be offset from the two corresponding connector tubes 11.
[0026] A support plate 25 is fixedly installed on the outer wall of the spherical tube 1. A worm gear 26 is rotatably mounted on the support plate 25. A worm wheel 27 is fixedly installed at one end of the rotating shaft 24 away from the spherical seat 21. The worm gear 26 and the worm wheel 27 are meshed together. A knob 28 is fixedly installed at one end of the worm gear 26. By rotating the knob 28, the worm gear 26 can be rotated. The worm gear 26 can drive the worm wheel 27 to rotate. The worm wheel 27 can drive the rotating shaft 24 to rotate. At the same time, the cooperation between the worm gear 26 and the worm wheel 27 can achieve self-locking, and the spherical seat 21 will not rotate.
[0027] The sealing assembly 3 includes four end caps 31. A threaded plug 32 is fixedly mounted on one side of each end cap 31. A threaded groove 33 is provided on the inner wall of one end of the connector tube 11. The threaded plug 32 is screwed into the connector tube 11 through the threaded groove 33. By using the threaded plug 32 and the threaded groove 33, when the end cap 31 is manually rotated, the threaded plug 32 rotates into the threaded groove 33, thus fixing the end cap 31 to the end of the connector tube 11. A rubber seat 34 is fixedly mounted on one end of the threaded plug 32. The outer wall of the rubber seat 34 and the connector tube... The inner wall of the connector 11 is in contact with the rubber seat 34. After the threaded plug 32 enters the interior of the connector tube 11, the rubber seat 34 also enters the connector tube 11. The rubber seat 34 can improve the sealing performance of the connector tube 11 after sealing. The outer wall of the end cap 31 is provided with anti-slip texture 35. By providing anti-slip texture 35, it is easy for the operator to rotate the end cap 31. The side of the end cap 31 away from the threaded plug 32 is provided with a hexagonal groove 36. By providing hexagonal groove 36, when a hexagonal wrench is inserted into the hexagonal groove 36, the end cap 31 can be rotated by the hexagonal wrench.
[0028] Working principle: During the assembly of automotive air conditioning pipes, the operator can use the mounting bolts to fix the mounting ring 12 in the front compartment of the car through the mounting ring 12 and the mounting hole 13.
[0029] Subsequently, rotate the two corresponding end caps 31 counterclockwise. The end caps 31 cause the threaded plugs 32 to rotate and disengage from the threaded grooves 33. At this time, the ends of the two corresponding connector tubes 11 are in an open state. Then, manually rotate the knob 28 to rotate the worm 26. The worm 26 causes the worm wheel 27 to rotate. The worm wheel 27 rotates the spherical seat 21 through the rotating shaft 24, so that the flow channel 22 aligns with the two corresponding connector tubes 11. At this time, the two corresponding connector tubes 11 are in a smooth state. Then, fix the ends of the two automotive pipes to the ends of any two corresponding connector tubes 11. The automotive air conditioning equipment can then transmit the refrigerant through the air conditioning pipes, this connector device, and the air conditioning pipes.
[0030] During the testing of automotive air conditioning equipment, the operator first uses the mounting bolts to fix the fixing ring 12 onto the automotive air conditioning equipment testing equipment through the fixing ring 12 and the mounting hole 13.
[0031] Subsequently, following the steps described above, the two corresponding end caps 31 are removed, and the two air conditioning pipes are then fixed to the ends of the two corresponding connector pipes 11. One end of one air conditioning pipe is connected to a refrigerant tank, and the other air conditioning pipe is connected to different automotive air conditioning equipment (including a tank, evaporator, condenser, and compressor). Then, the knob 28 is manually turned to rotate the spherical seat 21, switching the flow channel 22 so that the flow channel 22 corresponds to one of the two corresponding connector pipes 11 or to another two corresponding connector pipes 11. This is to detect the changes in the automotive air conditioning pipes after the refrigerant passes through different automotive air conditioning equipment, thus achieving the detection of the automotive air conditioning pipes.
[0032] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A quick-connect fitting device for automotive air conditioning pipes, comprising a spherical pipe (1), characterized in that: The spherical tube (1) is fixedly provided with connector tubes (11) around its perimeter. The spherical tube (1) is provided with a flow path switching component (2), and the connector tube (11) is provided with a sealing component (3). The flow path switching component (2) includes a spherical seat (21), on which a flow channel (22) is provided. The flow channel (22) passes through the spherical seat (21). Two rotating shafts (24) are rotatably installed at the center of the spherical tube (1). The spherical seat (21) is fixedly disposed between the two rotating shafts (24). A support plate (25) is fixedly installed on the outer wall of the spherical tube (1). A worm (26) is rotatably installed on the support plate (25). A worm wheel (27) is fixedly installed at one end of the rotating shaft (24) away from the spherical seat (21). The worm (26) and the worm wheel (27) are meshed together.
2. The quick-connect device for automotive air conditioning pipes as described in claim 1, characterized in that, A fixing ring (12) is fixedly provided on the outer wall of one end of the connector tube (11), and a plurality of assembly holes (13) are provided on the fixing ring (12) in a ring array.
3. The quick-connect device for automotive air conditioning pipes as described in claim 1, characterized in that, A rubber sleeve (23) is fixedly provided on the outer wall of the spherical seat (21), and the outer wall of the rubber sleeve (23) is in contact with the inner wall of the spherical tube (1).
4. The quick-connect device for automotive air conditioning pipes as described in claim 1, characterized in that, A knob (28) is fixedly installed at one end of the worm gear (26).
5. The quick-connect device for automotive air conditioning pipes as described in claim 1, characterized in that, The sealing assembly (3) includes an end cap (31), four of which are provided. A threaded plug (32) is fixedly provided on one side of the end cap (31). A threaded groove (33) is provided on the inner wall of one end of the connector tube (11). The threaded plug (32) is installed on one end of the connector tube (11) by threaded rotation through the threaded groove (33). A rubber seat (34) is fixedly provided on one end of the threaded plug (32). The outer wall of the rubber seat (34) and the inner wall of the connector tube (11) are in contact.
6. A quick-connect device for automotive air conditioning pipes as described in claim 5, characterized in that, The outer wall of the end cap (31) is provided with anti-slip texture (35).
7. A quick-connect device for automotive air conditioning pipes as described in claim 5, characterized in that, The end cap (31) has a hexagonal groove (36) on the side away from the threaded plug (32).