A pneumatic connector structure for a spring telescopic tube

Abstract

This utility model belongs to the field of pneumatic component technology, and particularly relates to a pneumatic connector structure for a spring telescopic tube. It includes a spring telescopic tube, a male connector, a push rod, and a female connector. Two spring telescopic tubes are arranged side-by-side, with a male connector fixed to the end of one spring telescopic tube and a female connector fixed to the end of the other. The hollow push rod is slidably disposed inside the male connector. By setting up the connecting components, the male connector only needs to be simply inserted into the retaining sleeve to achieve a stable connection between the male and female connectors. Furthermore, based on the structural characteristics of the wedge block, when the spring telescopic tube is subjected to external force, the straight surface of the wedge block fits more tightly against the retaining groove, generating greater friction and clamping force, thus preventing disengagement and ensuring the stability and reliability of the connection between the spring telescopic tubes. This ensures that the spring telescopic tubes will not accidentally separate during the operation of the pneumatic system.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic component technology, and in particular relates to a pneumatic connector structure for a spring telescopic tube. Background Technology

[0002] Spring-loaded telescopic tubes typically refer to flexible pipes with internal or external helical springs. This design allows the pipe to expand and contract within a certain range to accommodate changes in length while maintaining a tight seal and stability at the connection. They are widely used in systems for transmitting air, water, and other fluids. Pneumatic connectors are key components used to connect two spring-loaded telescopic tubes or other types of pneumatic pipes. Their main function is to achieve a quick, reliable, and sealed connection, ensuring that gas or liquid does not leak during transmission.

[0003] Traditional connector structures often rely on threaded connections to connect spring telescopic tubes. However, during the operation of a pneumatic system, the spring telescopic tubes are subject to various external forces, such as fluctuations in gas pressure, vibrations generated by equipment operation, and tensile forces that may be applied during manual operation. These external forces can easily cause the threaded connections to loosen. Once the threads loosen, the spring telescopic tubes may separate, which can lead to gas leakage in the pneumatic system, affecting its normal operation, and may also cause safety accidents, damaging equipment and operators.

[0004] Therefore, there is a particular need for a pneumatic connector structure for a spring telescopic tube to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of traditional connector structures, which are prone to loosening due to various external forces, causing the spring telescopic tube to detach, resulting in gas leakage, affecting system operation, and posing safety hazards, this utility model provides a pneumatic connector structure with a spring telescopic tube.

[0006] The technical solution of this utility model is as follows: a pneumatic connector structure for a spring telescopic tube, comprising a spring telescopic tube, a male connector, a push rod, a first limiting ring, a second limiting ring, a first ball valve, a first spring, a female connector, a connecting assembly, a second ball valve, a third spring, a butterfly valve, and a pressure gauge. Two spring telescopic tubes are arranged side-by-side, with a male connector fixed to the end of one spring telescopic tube and a female connector fixed to the end of the other. The hollow push rod is slidably disposed inside the male connector, with one end located inside the male connector and the other end extending to the outside of the male connector. The rod is externally fixed with two limiting rings, one on the left and one on the right. The right side of the limiting ring one is in close contact with the male connector to form a limit. The outer diameter of the limiting ring two is larger than the diameter of one end of the female connector. Two vent holes are respectively opened at both ends of the top rod. Ball valve one is slidably installed inside the male connector and is fixedly connected to the male connector with spring one. Ball valve two is slidably installed inside the female connector and is fixedly connected to the female connector with spring three. The connecting assembly is installed between the male connector and the female connector. The butterfly valve is rotated at the other end of the female connector. The pressure gauge is installed at the other end of the male connector.

[0007] In one embodiment, the connecting assembly includes a ferrule, a wedge block, a guide rod, and a second spring. The ferrule is fixed to the outside of one end of the female connector, and the inner diameter of the ferrule is the same as the outer diameter of the male connector. Two guide rods are arranged side by side and slidably disposed on the ferrule. A wedge block is fixed to one end of each guide rod that extends into the inside of the ferrule. Two symmetrically distributed slots are opened on the outside of one end of the male connector. A second spring is sleeved on the outside of each guide rod, and the two ends of the second spring are fixedly connected to the ferrule and the corresponding wedge block, respectively.

[0008] In one embodiment, a sealing ring is also included, which is fixed to the outside of one end of the male connector and is fully embedded in the male connector.

[0009] In one embodiment, a rubber ring is also included, with a rubber ring fixedly connected to the inside of one end of the male connector and the inside of one end of the female connector, and ball valve one and ball valve two respectively contacting the two rubber rings.

[0010] In one embodiment, a lever is also included, with a lever fixed to the other end of each guide rod extending outside the sleeve, and a circular groove formed on the upper part of each lever.

[0011] In one embodiment, a buffer pad is covered on the right side of both the first limiting ring and the second limiting ring.

[0012] Beneficial effects: 1. By setting up the connecting components, the male connector only needs to be simply plugged into the ferrule to achieve a stable connection between the male and female connectors. Based on the structural characteristics of the wedge block, when the spring telescopic tube is subjected to external force, the straight surface structure of the wedge block fits the groove more tightly, generating greater friction and clamping force, thus preventing the disconnection phenomenon and ensuring the stability and reliability of the connection between the spring telescopic tubes. This ensures that the spring telescopic tubes will not accidentally separate during the operation of the pneumatic system.

[0013] 2. By setting a sealing ring, the sealing performance of the connector structure is improved, effectively preventing gas leakage from the connection between the male and female connectors. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial cross-sectional view of the male connector and sealing ring components of this utility model.

[0016] Figure 3 This is a partial cross-sectional view of the card sleeve component of this utility model.

[0017] Figure 4 This is a partial cross-sectional view of the female connector component of this utility model.

[0018] The following are marked in the diagram: 1. Spring telescopic tube, 2. Male connector, 3. Sealing ring, 4. Top rod, 5. Limiting ring one, 51. Limiting ring two, 6. Rubber ring, 7. Ball valve one, 8. Spring one, 9. Female connector, 10. Compression sleeve, 11. Wedge block, 111. Slot, 12. Guide rod, 13. Spring two, 14. Paddle plate, 15. Ball valve two, 16. Spring three, 17. Butterfly valve, 18. Pressure gauge. Detailed Implementation

[0019] Example: A pneumatic connector structure for a spring telescopic tube, such as... Figures 1-4As shown, the assembly includes a spring telescopic tube 1, a male connector 2, a push rod 4, a first limiting ring 5, a second limiting ring 51, a first ball valve 7, a first spring 8, a female connector 9, a connecting assembly, a second ball valve 15, a third spring 16, a butterfly valve 17, and a pressure gauge 18. The two spring telescopic tubes 1 are arranged side-by-side. The end of the left spring telescopic tube 1 is fixedly connected to the male connector 2, and the end of the right spring telescopic tube 1 is fixedly connected to the female connector 9. The hollow push rod 4 is slidably disposed inside the male connector 2, with its left end inside the male connector 2 and its right end extending to the outside of the male connector 2. The push rod 4 is fixedly connected to the outside of the first and second limiting rings 5 ​​and 51, which are distributed left and right. The right side of the first limiting ring 5 is in close contact with the male connector 2, forming a limit, so that the left end of the push rod 4 can only continue to slide into the male connector 2 in the initial state. The outer diameter of the second limiting ring 51 is larger than the diameter of the left end of the female connector 9, ensuring that in the initial state… The right end of the push rod 4 can only passively slide into the female connector 9. Both the right side of the limiting ring 1 5 and the right side of the limiting ring 2 51 are covered with a buffer pad to prevent the limiting ring 1 5 from wearing down the inside of the male connector 2 and to prevent the limiting ring 2 51 from wearing down the left end face of the female connector 9. The push rod 4 has two vent holes distributed vertically at its left and right ends. The ball valve 1 7 is slidably installed inside the male connector 2 and is fixedly connected to the male connector 2 by a spring 1 8. In the initial state, the spring 1 8 keeps the ball valve 1 7 in a specific position to close the male connector 2. The ball valve 2 15 is slidably installed inside the female connector 9 and is fixedly connected to the female connector 9 by a spring 3 16. In the initial state, the spring 3 16 keeps the ball valve 2 15 in a specific position to close the female connector 9. The connecting assembly is installed between the male connector 2 and the female connector 9. The butterfly valve 17 is rotatably installed at the right end of the female connector 9. The pressure gauge 18 is installed at the left end of the male connector 2.

[0020] like Figure 1 and Figure 3 As shown, the connecting assembly includes a retaining sleeve 10, a wedge block 11, guide rods 12, a spring 13, and a lever 14. The retaining sleeve 10 is fixedly connected to the outside of the left end of the female connector 9. The inner diameter of the retaining sleeve 10 is the same as the outer diameter of the male connector 2, so that the male connector 2 can be smoothly inserted into the retaining sleeve 10. Two guide rods 12 are arranged side by side and slidably disposed on the retaining sleeve 10. A wedge block 11 is fixedly connected to one end of each guide rod 12 that extends into the inside of the retaining sleeve 10. Two symmetrically distributed slots 111 are opened on the outside of the right end of the male connector 2. Each guide rod 12 is fitted with a... There is a spring 13, with its two ends fixedly connected to the sleeve 10 and the corresponding wedge block 11, respectively, to provide a reset force for the wedge block 11, ensuring that the wedge block 11 can remain in the slot 111 when no external force is applied, thus maintaining the connection state. Each guide rod 12 extends to the other end of the sleeve 10 and is fixedly connected to a lever 14. Each lever 14 has a circular groove on its upper part to increase contact friction, making it convenient for the operator to move the lever 14 to disengage the wedge block 11 from the slot 111 and disconnect the male connector 2 from the female connector 9.

[0021] like Figure 1 and Figure 2 As shown, it also includes a sealing ring 3, which is bonded to the outside of the right end of the male connector 2 and completely embedded in the male connector 2. When the male connector 2 is connected to the female connector 9, the sealing ring 3 contacts the inner wall of the ferrule 10, enhancing the sealing at the connection between the male connector 2 and the female connector 9 and preventing gas leakage.

[0022] like Figure 2 and Figure 4 As shown, it also includes rubber rings 6. A rubber ring 6 is bonded to the inside of the right end of the male connector 2 and the inside of the left end of the female connector 9. Ball valve 1 7 and ball valve 2 15 are in contact with the two rubber rings 6 respectively. The rubber rings 6 not only play a sealing role, but also play a certain buffering role for ball valve 1 7 and ball valve 2 15.

[0023] When it is necessary to connect two spring telescopic tubes 1, the operator inserts the male connector 2 into the sleeve 10. In the initial stage of insertion, the right end of the male connector 2 contacts and presses the wedge block 11. The wedge block 11 slides outward under the drive of the guide rod 12, while compressing the second spring 13. As the male connector 2 goes deeper into the sleeve 10, the slot 111 gradually approaches the wedge block 11. When the male connector 2 is fully inserted into the sleeve 10, the slot 111 aligns with the wedge block 11. At this time, the compressed second spring 13 generates a restoring force, pushing the wedge block 11 into the slot 111, thus achieving a stable connection between the male connector 2 and the female connector 9.

[0024] At the same time, the right end of the push rod 4 passively slides into the female connector 9, and the vent hole at its right end is connected to the inside of the female connector 9. The right end of the push rod 4 pushes the ball valve 15 to overcome the elastic force of the spring 16, causing the ball valve 15 to leave its initial closed position, thereby opening the female connector 9 and allowing gas to pass through. As the male connector 2 continues to be inserted, the left end of the push rod 4 slides into the male connector 2 under the limiting action of the left end of the female connector 9. The vent hole at the left end of the push rod 4 gradually connects with the inside of the male connector 2. At the same time, the left end of the push rod 4 pushes the ball valve 7 to overcome the elastic force of the spring 8, causing the ball valve 7 to leave its initial closed position, thereby opening the male connector 2. Thus, the male connector 2 and the female connector 9 are connected through the push rod 4 and the vent holes at both ends.

[0025] When conveying gas, the gas enters the male connector 2 from the left spring telescopic tube 1, passes through the vent at the left end of the push rod 4 into the interior of the push rod 4, and then enters the female connector 9 through the vent at the right end of the push rod 4. Inside the female connector 9, the gas flows out smoothly through the butterfly valve 17. The operator can adjust the gas flow rate by rotating the butterfly valve 17 to meet different working requirements. The pressure gauge 18 can monitor the gas pressure in the connector in real time and display the pressure value, so that the operator can understand the system operating status in a timely manner.

[0026] When it is necessary to disassemble the male connector 2 and the female connector 9, the operator moves the lever 14. The lever 14 drives the guide rod 12 to move outward. The guide rod 12 drives the wedge block 11 to overcome the elastic force of the spring 13, so that the wedge block 11 disengages from the slot 111. At this time, the male connector 2 can be pulled out of the sleeve 10, so that the push rod 4 can disengage from the female connector 9.

Claims

1. A pneumatic connector structure for a spring telescopic tube, characterized in that, The assembly includes a spring telescopic tube (1), a male connector (2), a push rod (4), a first limiting ring (5), a second limiting ring (51), a first ball valve (7), a first spring (8), a female connector (9), a connecting assembly, a second ball valve (15), a third spring (16), a butterfly valve (17), and a pressure gauge (18). The two spring telescopic tubes (1) are arranged side by side. One end of the spring telescopic tube (1) is fixed to the male connector (2), and the other end of the spring telescopic tube (1) is fixed to the female connector (9). The hollow push rod (4) is slidably disposed inside the male connector (2). One end of the push rod (4) is located inside the male connector (2), and the other end extends to the outside of the male connector (2). Left and right limiting rings are fixed to the outside of the push rod (4). Ring 1 (5) and limiting ring 2 (51), wherein the right side of limiting ring 1 (5) is in close contact with male connector (2) to form a limit, and the outer diameter of limiting ring 2 (51) is larger than the diameter of one end of female connector (9). The top rod (4) has two vent holes distributed vertically at both ends. Ball valve 1 (7) is slidably disposed inside male connector (2) and is fixedly connected to male connector (2) by spring 1 (8). Ball valve 2 (15) is slidably disposed inside female connector (9) and is fixedly connected to female connector (9) by spring 3 (16). The connecting assembly is disposed between male connector (2) and female connector (9). Butterfly valve (17) is rotatably disposed at the other end of female connector (9). Pressure gauge (18) is disposed at the other end of male connector (2).

2. The pneumatic connector structure of a spring telescopic tube according to claim 1, characterized in that, The connecting assembly includes a sleeve (10), a wedge block (11), a guide rod (12), and a second spring (13). The sleeve (10) is fixed to the outside of one end of the female connector (9). The inner diameter of the sleeve (10) is the same as the outer diameter of the male connector (2). Two guide rods (12) are arranged side by side and slidably disposed on the sleeve (10). A wedge block (11) is fixed to one end of each guide rod (12) that extends into the inside of the sleeve (10). Two symmetrically distributed slots (111) are opened on the outside of one end of the male connector (2). A second spring (13) is sleeved on the outside of each guide rod (12). The two ends of the second spring (13) are fixedly connected to the sleeve (10) and the corresponding wedge block (11) respectively.

3. The pneumatic connector structure of a spring telescopic tube according to claim 2, characterized in that, It also includes a sealing ring (3), which is fixed to the outside of one end of the male connector (2) and is completely embedded in the male connector (2).

4. The pneumatic connector structure of a spring telescopic tube according to claim 3, characterized in that, It also includes a rubber ring (6), and a rubber ring (6) is fixedly connected to the inside of one end of the male connector (2) and the inside of one end of the female connector (9). Ball valve one (7) and ball valve two (15) are in contact with the two rubber rings (6) respectively.

5. The pneumatic connector structure of a spring telescopic tube according to claim 4, characterized in that, It also includes a dial (14), with a dial (14) fixed to the other end of each guide rod (12) extending to the outside of the sleeve (10), and a circular groove on the upper part of each dial (14).

6. The pneumatic connector structure of a spring telescopic tube according to claim 5, characterized in that, Both the right side of the limiting ring one (5) and the right side of the limiting ring two (51) are covered with a buffer pad.

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