Pneumatic pipeline quick-insertion connecting device

Abstract

The utility model relates to the technical field of pneumatic brake pipeline connection, in particular to a pneumatic pipeline quick-plug connecting device which comprises a quick-plug connector A, a quick-plug connector B, a connecting module A and a connecting module B. A connector hole A is formed in the surface of the connecting module A. One end of the quick-plug connector A is connected to the connecting module A through the connector hole A, and the other end of the quick-plug connector A is connected to the connecting module B. The other end of the quick-plug connector A is connected with a front-end nylon pipe, a connector hole B is formed in the surface of the connecting module B, the quick-plug connector B is connected to the connecting module B through the connector hole B, bolt fixing holes are formed in the center of the connecting module A and the center of the connecting module B, and the connecting module A and the connecting module B are fixedly connected through bolts and nuts. Modularization design is adopted, all parts can be independently installed and detached, and the installation process is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic brake pipeline connection, in particular to a pneumatic pipeline quick-plug connection device. Background Art

[0002] In the field of commercial vehicle air brake systems, the reliability and efficiency of pipeline connections are crucial to vehicle braking safety. At present, the indoor and outdoor connections of the cab are usually fixed to the vehicle frame with the help of a plate module or a valve body to achieve series ventilation. The air brake pipelines are connected by joints, and the joint fixing methods include bracket fixation and connection module fixation. However, the existing connection modules have many disadvantages. They occupy a large amount of installation space, resulting in insufficient installation space and inconvenient installation. This has an adverse effect on the indoor and outdoor air path connectivity of the cab and increases the braking safety risk.

[0003] The rear axle pipeline connection mostly adopts a single pipeline point-to-point method. This connection process is cumbersome and time-consuming. During the assembly process, the pipeline is prone to damage. Once the pipeline is damaged, it will directly cause braking safety problems, seriously threatening the vehicle's driving safety. When the frame side beam pipeline passes through the beam, the air brake pipeline is often made into a whole harness passing through the beam, but this solution lacks assembly consistency. During the beam passing process, the pipeline is prone to damage and the connection joints are damaged, resulting in unreliable connection of the frame side beam pipeline, affecting the normal operation of the air brake system, and also increasing the braking safety risk. At this stage, a pneumatic pipeline quick-plug connection device is needed. Utility Model Content

[0004] In order to solve the problems of unreliable connection of vehicle frame side beam pipelines, complicated connection methods and inconvenient installation, the utility model provides a pneumatic pipeline quick-plug connection device.

[0005] In the first aspect, the present invention provides a pneumatic pipeline quick-connection device, which adopts the following technical solutions:

[0006] A pneumatic pipeline quick-connection device, comprising:

[0007] Quick-connector A, quick-connector B, connection module A and connection module B, the connection module A is provided with a connection hole A on the surface, one end of the quick-connector A is connected to the connection module A through the connection hole A, and the other end of the quick-connector A is connected to the front nylon tube, the connection module B is provided with a connection hole B on the surface, and the quick-connector B is connected to the connection module B through the connection hole B, the center positions of the connection modules A and B are provided with bolt fixing holes, and the connection module A and the connection module B are fixedly connected by bolts and nuts.

[0008] Furthermore, the quick-plug connector A includes a sealing ring, a fixing groove A, a reverse tooth A and a flow channel A, the flow channel A is arranged at the internal center position of the quick-plug connector A, the sealing ring is arranged at the upper end of the outer surface of the quick-plug connector A, the fixing groove A is installed to the lower end position of the sealing ring, and the reverse tooth is installed to the lower end of the outer surface of the quick-plug connector A.

[0009] Furthermore, the fixing groove A includes an upper side surface and a lower side surface, the upper side surface is inserted into the connector hole A of the connection module A for guiding and limiting the connection, and the lower side surface is tightly fitted with the inner wall of the connector hole A.

[0010] Furthermore, the sealing ring is made of elastic material and is inserted into the connector hole A to provide a sealing effect at the connection between the connecting module A and the quick-connect connector A.

[0011] Furthermore, a fixing tooth A is provided inside the joint hole A, and the fixing tooth A is a trapezoidal structure with an inclined angle provided on its side.

[0012] Furthermore, the outer surface of the connection module A is provided with a guide rib, and the outer side surface of the connection module B is provided with a guide groove. When the connection module A and the connection module B are connected, the guide rib is inserted into the guide groove.

[0013] Furthermore, the quick-plug connector B includes a sealing inner wall, a fixing groove B, a reverse tooth B and a flow channel B. The flow channel B is arranged at the inner center position of the quick-plug connector B, the sealing inner wall is located at the top of the quick-plug connector B, the fixing groove B is in a circular ring shape and surrounds the outer surface of the quick-plug connector B, and the reverse tooth B is arranged at the lower end of the outer surface of the quick-plug connector B.

[0014] Furthermore, the sealing inner wall has a smooth and uniform surface, is cylindrical and is provided with a closing end near the connection port for tightly fitting with the sealing ring of the quick-connect connector A.

[0015] Furthermore, a reinforcement structure is provided around the bolt fixing holes of the connection module A and the connection module B.

[0016] Furthermore, the reinforcement structure is in the shape of an annular protrusion, and the surface of the reinforcement structure has roughness.

[0017] In summary, the present invention has the following beneficial technical effects:

[0018] 1. The utility model consists of a quick-connect connector A, a quick-connect connector B, a connection module A and a connection module B. It adopts a modular design, and each component can be installed and disassembled independently. When installing the frame side beam pipeline, connect the quick-connect connector with the nylon tube, then insert the quick-connect connector into the connection module, and finally fix the connection module A and the connection module B with bolts and nuts. The installation process is simple and convenient.

[0019] 2. The outer surface of the connection module A of the present invention is provided with a guide rib, and the outer surface of the connection module B is provided with a guide groove. When connecting, the guide rib is inserted into the guide groove, which provides accurate guidance for the connection between the connection module A and the connection module B, avoids dislocation and difficulties during the connection process, and further simplifies the connection method.

[0020] 3. The quick-connect connector A and quick-connect connector B of the present invention are connected to the connection module A and the connection module B respectively through a unique structural design. The upper side of the fixing groove A of the quick-connect connector A plays a guiding and limiting role in the connection, and the lower side fits tightly with the inner wall of the connector hole to ensure the accuracy and stability of the connection. At the same time, the sealing inner wall of the quick-connect connector B fits tightly with the sealing ring of the quick-connect connector A to form a reliable seal, prevent gas leakage, and improve the reliability of the frame side beam pipeline connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a pneumatic pipeline quick-connection device according to an embodiment of the present utility model.

[0022] Figure 2 It is a structural schematic diagram of a quick-connect connector A according to an embodiment of the present invention.

[0023] Figure 3 It is a structural schematic diagram of a quick-connect connector B according to an embodiment of the present invention.

[0024] Figure 4 It is a structural diagram of the connection module A in an embodiment of the present utility model.

[0025] Figure 5 It is a structural diagram of the connection module B in an embodiment of the present utility model.

[0026] Among them, 1. Quick-connector A; 2. Quick-connector B; 3. Connection module B; 4. Connection module A; 5. Nut; 6. Bolt; 7. Reinforcement structure; 8. Sealing ring; 9. Inverted tooth; 10. Sealing inner wall; 11. Fixed tooth A; 12. Fixed groove A; 13. Flow channel A; 14. Fixed groove B; 15. Flow channel B; 16. Guide rib; 17. Bolt fixing hole; 18. Connector hole A; 19. Connector hole B; 20. Guide groove; 21. Fixed tooth B. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Reference Figure 1 , a pneumatic pipeline quick plug connection device of this embodiment includes:

[0030] Quick-connector A, quick-connector B, connection module A and connection module B, the connection module A is provided with a connection hole on the surface, one end of the quick-connector A is connected to the connection module A through the connection hole, and the other end of the quick-connector A is connected to the front nylon tube, the connection module B is provided with a connection hole B on the surface, and the quick-connector B is connected to the connection module B through the connection hole B, the center positions of the connection modules A and B are provided with bolt fixing holes, and the connection module A and the connection module B are fixedly connected by bolts and nuts.

[0031] Specifically,

[0032] like Figure 1 As shown, the pneumatic pipeline quick-plug connection device of the present invention provides an efficient and reliable solution to the problem of connecting the frame side beam pipeline. The device is mainly composed of a quick-plug connector A1, a quick-plug connector B2, a connection module A4 and a connection module B3. The unique design between the various components achieves a fast and stable connection. This embodiment is mainly described in detail from the following three aspects, namely, the connection between the quick-plug connector A1 and the connection module A4, the connection between the quick-plug connector B2 and the connection module B3, and the connection between the connection module A4 and the connection module B3. After the above three parts are connected, they together constitute a pneumatic pipeline quick-plug connection device.

[0033] For the connection between quick-connect connector A1 and connection module A4, the specific steps are as follows:

[0034] like Figure 2 As shown, in the first step, the sealing ring 8 is installed on the upper end of the outer surface of the quick-connect connector A1. The sealing ring 8 is made of elastic material and its size precisely matches the outer diameter of the quick-connect connector A1. During installation, ensure that the sealing ring 8 is accurately and firmly positioned to lay the foundation for the subsequent sealing effect. The flow channel A is provided at the center of the quick-connect connector A1. The flow channel A13 provides a smooth channel for gas transmission. During the connection process, the flow channel A13 can ensure that the gas can flow stably and efficiently without being hindered by the complexity of the connection structure.

[0035] The second step is to select a nylon tube of appropriate size and insert one end of the tube into the inverted tooth 9 of the quick-connect connector A1. Since the type of the inverted tooth corresponds to the type of the nylon tube, the inverted tooth 9 will tightly clamp the nylon tube during the insertion process, achieving a quick connection and effectively preventing gas leakage. At the same time, the flow channel A13 is connected to the internal channel of the nylon tube, allowing gas to flow smoothly from the nylon tube into the flow channel A13 of the quick-connect connector A1.

[0036] like Figure 4As shown, in the third step, hold the quick-connect connector A1 assembled with the nylon tube and align it with the connector hole on the surface of the connecting module A4. The upper side of the fixing groove A12 of the quick-connect connector A1 is first inserted into the connector hole. At this time, the upper side plays a guiding and limiting role, ensuring that the quick-connect connector A1 can be accurately inserted into the connecting module A4. As the insertion continues, the lower side of the fixing groove A12 fits tightly against the inner wall of the connector hole A18. This design enables the quick-connect connector A1 to maintain a stable position in the connecting module A4 and will not be easily moved due to external force. At the same time, the sealing ring 8 is also inserted into the connector hole and deforms under the action of pressure, filling the small gap between the quick-connect connector A1 and the connecting module A4, achieving a sealing effect and effectively preventing gas leakage. In addition, the fixing teeth A11 inside the connector hole A18 are trapezoidal in structure, and the side has a certain inclination angle. When the quick-connect connector A1 is inserted, the fixing teeth A11 cooperate with the fixing groove A12 of the quick-connect connector A1, further enhancing the stability and firmness of the connection.

[0037] like Figure 3 As shown, the connection method of quick-connect connector B2 and connection module B3 is similar to that of quick-connect connector A1:

[0038] First, inspect the sealing inner wall 10, retaining groove B14, and inverted teeth 9 of quick-connect connector B2. The sealing inner wall 10 should have a smooth and uniform surface, with a chamfer near the connection port to tightly fit the sealing ring 8 of quick-connect connector A1, achieving a good seal. Retaining groove B14 is annular and surrounds the outer surface of quick-connect connector B2, ensuring a stable connection with connection module B3. Similarly, similar to connector hole A, retaining teeth B21 are provided within connector hole B in connection module B3. These retaining teeth are trapezoidal in shape and have a certain inclination angle on the sides. When quick-connect connector B is inserted into connection module B3, the retaining teeth can interact with the corresponding structure of quick-connect connector B2, further enhancing the firmness and stability of the connection. The structure and function of its flow channel B15 are the same as those of flow channel A.

[0039] Then, select the nylon tube corresponding to the inverted tooth model of the quick-connect connector B2 and insert the nylon tube into the inverted tooth end of the quick-connect connector B to achieve a quick connection. The inverted tooth design of the quick-connect connector B2 can tightly clamp the nylon tube to ensure that the gas will not leak during the transmission process.

[0040] Finally, align quick-connector B2 with connector hole B19 on the surface of connection module B3 and manually insert it. At this point, the sealing inner wall 10 of quick-connector B2 tightly mates with the internal structure of connection module B3, ensuring a tight connection. The closed design of sealing inner wall 10 connects with the sealing ring 8 of quick-connector A1, forming a double seal structure, greatly improving sealing performance. At the same time, the interaction between the fixing groove B14 and the structure of connection module B3 enhances the stability of the connection and prevents quick-connector B2 from loosening or shifting during use.

[0041] like Figure 5 As shown, the connection between the connection module A4 and the connection module B3 is the key step in connecting the entire device:

[0042] First, select a suitable fixing point based on the actual installation location, such as the cab front panel, rear axle bracket or frame side beam, and use bolts 6 and nuts 5 to fix the connection module B3 assembly to the selected location. Make sure that bolts 6 and nuts 5 are tightened firmly to prevent the connection module B3 from loosening during vehicle operation.

[0043] Next, align the connection module A4 assembly with the connection module B3 assembly so that the guide rib 16 of the connection module A4 is inserted into the guide groove 20 of the connection module B3. The design of the guide rib 16 and the guide groove 20 provides accurate guidance for the connection, avoiding problems such as misalignment during the connection process. Finally, use the nut 5 to fix the connection module A4 assembly to the connection module B3 assembly through the bolt fixing hole 17. During the fixing process, the reinforcement structure 7 around the bolt 6 fixing holes of the connection module A4 and the connection module B3 is an annular protrusion and has a certain surface roughness. This reinforcement structure 7 increases the strength and friction of the connection, making the connection more secure and able to effectively resist vibration and impact during vehicle operation, ensuring the stability and reliability of the connection.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic pipeline quick-connection device, characterized in that: include: Quick-connector A, quick-connector B, connection module A and connection module B, the connection module A is provided with a connection hole A on the surface, one end of the quick-connector A is connected to the connection module A through the connection hole A, and the other end of the quick-connector A is connected to the front nylon tube, the connection module B is provided with a connection hole B on the surface, and the quick-connector B is connected to the connection module B through the connection hole B, the center positions of the connection modules A and B are provided with bolt fixing holes, and the connection module A and the connection module B are fixedly connected by bolts and nuts.

2. A pneumatic pipeline quick-connection device according to claim 1, characterized in that: The quick-plug connector A includes a sealing ring, a fixing groove A, a reverse tooth A and a flow channel A. The flow channel A is arranged at the inner center position of the quick-plug connector A, the sealing ring is arranged at the upper end of the outer surface of the quick-plug connector A, the fixing groove A is installed to the lower end position of the sealing ring, and the reverse tooth is installed to the lower end of the outer surface of the quick-plug connector A.

3. A pneumatic pipeline quick-connection device according to claim 2, characterized in that: The fixing groove A includes an upper side surface and a lower side surface. The upper side surface is inserted into the connector hole A of the connection module A for guiding and limiting the connection, and the lower side surface is tightly fitted with the inner wall of the connector hole A.

4. A pneumatic pipeline quick-connection device according to claim 2, characterized in that: The sealing ring is made of elastic material and is inserted into the connector hole A to seal the connection between the connecting module A and the quick-connect connector A.

5. The pneumatic pipeline quick-connection device according to claim 1, characterized in that: A fixing tooth A is provided inside the joint hole A. The fixing tooth A is in a trapezoidal structure and a side surface thereof is provided with an inclination angle.

6. A pneumatic pipeline quick-connection device according to claim 1, characterized in that: The outer surface of the connection module A is provided with a guide rib, and the outer side surface of the connection module B is provided with a guide groove. When the connection module A and the connection module B are connected, the guide rib is inserted into the guide groove.

7. A pneumatic pipeline quick-connection device according to claim 6, characterized in that: The quick-plug connector B includes a sealing inner wall, a fixing groove B, a reverse tooth B and a flow channel B. The flow channel B is arranged at the inner center position of the quick-plug connector B, the sealing inner wall is located at the top of the quick-plug connector B, the fixing groove B is in a circular shape and surrounds the outer surface of the quick-plug connector B, and the reverse tooth B is arranged at the lower end of the outer surface of the quick-plug connector B.

8. A pneumatic pipeline quick-connection device according to claim 7, characterized in that: The sealing inner wall has a smooth and uniform surface. The sealing inner wall is cylindrical and has a closing end near the connection port, which is used to fit tightly with the sealing ring of the quick-connect connector A.

9. The pneumatic pipeline quick-connection device according to claim 1, characterized in that: A reinforcement structure is provided around the bolt fixing holes of the connection module A and the connection module B.

10. A pneumatic pipeline quick-connection device according to claim 9, characterized in that: The reinforcement structure is in the shape of an annular protrusion, and the surface of the reinforcement structure has roughness.

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