Connecting pipe joint and air valve detection device

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a connecting pipe joint and an air valve detection device.The connecting pipe joint comprises a joint body, a fixing piece and a first sealing ring, a cavity is formed in the joint body, the joint body is provided with a first connecting part and a second connecting part, and the first connecting part is provided with a first connecting opening; the first connecting part is provided with a first connecting port, the second connecting part is provided with a second connecting port, the first connecting port and the second connecting port are both communicated with the cavity, the end face of the first connecting part is a first mounting face, the first sealing ring is arranged on the first mounting face and used for abutting against the connecting pipe, and the fixing piece is connected with the first connecting part of the connector body. The fixing piece is connected with the connecting pipe so that the connecting pipe can abut against the first sealing ring. According to the scheme, through the arrangement of the first sealing ring, when the connecting pipe is connected with the first connecting part of the connector body, the connecting pipe can be tightly connected to the first sealing ring in an abutting mode, and therefore the good sealing effect is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pipeline connection, and in particular to a connecting pipe joint and a gas valve detection device. Background Art

[0002] With the rapid development of rail transit equipment, various vehicles are constantly upgraded and iterated, and many new types of gas valves have emerged. Each type of gas valve needs to be tested and inspected for performance before it can be installed and used.

[0003] Due to the large variety of gas valves, the performance testing and inspection of gas valves requires the design of a large number of test benches for different gas valve tests. Currently, most of the test bench pipelines on the market are mainly sealed with tapered threads, and the sealing effect is not very ideal. Therefore, it is necessary to provide a connecting pipe joint with a stable structure, improved maintenance stability and accurate determination. Utility Model Content

[0004] The present invention provides a connecting pipe joint and a gas valve detection device to solve the gas leakage phenomenon caused by tapered thread sealing of the test bench pipeline of the gas valve in the prior art.

[0005] In a first aspect, the present disclosure provides a connecting pipe joint, comprising:

[0006] A joint body, a fixing part and a first sealing ring, wherein a cavity is arranged inside the joint body, the joint body has a first connecting part and a second connecting part, the first connecting part has a first connecting port, the second connecting part has a second connecting port, the first connecting port and the second connecting port are both connected to the cavity, the end face of the first connecting part is a first mounting face, the first sealing ring is arranged on the first mounting face, the first sealing ring is used to abut against a connecting pipe, the fixing part is connected to the first connecting part of the joint body, and the fixing part is connected to the connecting pipe so that the connecting pipe abuts against the first sealing ring.

[0007] In some embodiments, the connecting tube is also included, and one end of the connecting tube is extended outward to be provided with an outer edge portion, and the outer edge portion abuts against the first sealing ring. The fixing piece is set in a cylindrical shape, and a connecting channel is opened inside the fixing piece. The side wall of the connecting channel away from one end of the joint body extends toward the inner side of the connecting channel to form a clamping portion. The fixing piece is sleeved on the outer side of the first connecting portion of the joint body through the connecting channel, and the fixing piece is connected to the first connecting portion, and the clamping portion abuts against the side of the outer edge portion facing away from the first sealing ring.

[0008] In some embodiments, the inner wall of the fixing member is provided with a first thread structure, the outer surface of the first connecting portion is provided with a second thread structure, and the first thread structure is threadedly connected to the second thread structure.

[0009] In some embodiments, a first receiving groove is formed on the first mounting surface, and the first sealing ring is disposed in the first receiving groove.

[0010] In some embodiments, it also includes an air valve and a second sealing ring, wherein the second sealing ring is arranged on the second connecting portion, and the second connecting portion abuts against the air valve through the second sealing ring.

[0011] In some embodiments, the second sealing ring is a nylon sealing ring.

[0012] In some embodiments, the air valve has a valve interface, the side wall of the valve interface is provided with a third threaded structure, the outer surface of the second connecting part is provided with a fourth threaded structure, the valve interface is sleeved on the outer side of the second connecting part, and the third threaded structure is threadedly connected to the fourth threaded structure.

[0013] In some embodiments, the second connecting portion has a second mounting surface, the second mounting surface is provided with a second receiving groove, and the second sealing ring is disposed in the second receiving groove.

[0014] In some embodiments, the connector body is provided with a reinforcement structure between the first connection portion and the second connection portion.

[0015] In a second aspect, the present disclosure provides a gas valve detection device, comprising a connecting pipe joint as described in any of the above aspects.

[0016] The present disclosure provides a connecting pipe joint and a gas valve detection device. Through the setting of the first sealing ring, when the connecting pipe is connected to the first connecting part of the joint body, the connecting pipe can be tightly abutted on the first sealing ring, thereby achieving a good sealing effect. This design effectively prevents the leakage of liquid or gas at the connection point, and ensures the safety and reliability of the pipeline system; the fixing piece is connected to the first connecting part of the joint body, and the connecting pipe is fixed by the fixing piece, so that the connecting pipe can easily be pressed against the first sealing ring. This design simplifies the installation steps, improves the installation efficiency, and reduces the installation cost; due to the setting of the first sealing ring, the joint structure can adapt to connecting pipes of different sizes and types. At the same time, the design of the fixing piece also has strong versatility and can be used in conjunction with different types of joint bodies and connecting pipes. Therefore, the connecting pipe joint structure disclosed in the present disclosure has strong adaptability and flexibility, and the entire joint structure is compact and reasonable, which not only reduces the use of materials and reduces production costs, but also improves the stability and reliability of the joint structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0018] Figure 1 A schematic diagram of the overall structure of a connecting pipe joint provided in an embodiment of the present disclosure;

[0019] Figure 2 An exploded view schematic diagram of a connecting pipe joint provided in an embodiment of the present disclosure;

[0020] Figure 3 A cross-sectional view of a connecting pipe joint provided in an embodiment of the present disclosure;

[0021] Figure 4 A schematic structural diagram of a first receiving groove of a connecting pipe joint provided in an embodiment of the present disclosure;

[0022] Figure 5 A schematic diagram of the matching relationship between a second sealing ring and a second connecting portion of a connecting pipe joint provided in an embodiment of the present disclosure;

[0023] Figure 6 A schematic diagram of a reinforcement structure of a connecting pipe joint provided in an embodiment of the present disclosure.

[0024] Figure numerals: 100, joint body; 110, first connecting part; 111, first accommodating groove; 120, second connecting part; 121, second accommodating groove; 200, fixing member; 210, pressing part; 300, first sealing ring; 400, connecting pipe; 410, outer edge part; 500, second sealing ring; 600, reinforcement structure.

[0025] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, and to fully understand and implement how the present disclosure applies technical means to solve technical problems and achieve the corresponding technical effects, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only embodiments of a part of the present disclosure, not all of the embodiments. The embodiments of the present disclosure and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the scope of protection of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present disclosure.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0028] In this embodiment, Figure 1 and Figure 2 As shown, a structural schematic diagram of a connecting pipe joint is provided, including:

[0029] A connector body 100, a fixing member 200 and a first sealing ring 300, wherein a cavity is arranged inside the connector body 100, the connector body 100 has a first connecting portion 110 and a second connecting portion 120, the first connecting portion 110 is provided with a first connecting port, the second connecting portion 120 is provided with a second connecting port, the first connecting port and the second connecting port are both connected to the cavity, the end face of the first connecting portion 110 is a first mounting face, the first sealing ring 300 is arranged on the first mounting face, the first sealing ring 300 is used to abut against a connecting pipe 400, the fixing member 200 is connected to the first connecting portion 110 of the connector body 100, and the fixing member 200 is connected to the connecting pipe 400 so that the connecting pipe 400 abuts against the first sealing ring 300.

[0030] In this embodiment, the first connection part 110 of the connector body 100 can be connected to the connecting pipe 400, and the second connection part 120 can be connected to the gas valve. The connecting pipe 400 delivers gas to the cavity of the connector body 100, and then enters the connecting interface of the gas valve, thereby realizing the test of the gas valve performance. In order to reduce gas leakage and improve the accuracy of the gas valve performance test, a first sealing ring 300 is provided on the first mounting surface of the first connecting part 110. When the connecting pipe 400 is installed, the end of the connecting pipe 400 abuts against the first sealing ring 300, thereby increasing the tightness of the connection between the connecting pipe 400 and the first connecting part 110 and reducing gas leakage. Furthermore, after the connecting pipe 400 abuts against the first sealing ring 300, the connecting pipe 400 and the first sealing ring 300 are pressed together by the fixing member 200, thereby improving the stability of the connection of the connecting pipe 400.

[0031] The present disclosure provides a connecting pipe joint. Through the setting of the first sealing ring 300, when the connecting pipe 400 is connected to the first connecting portion 110 of the joint body 100, the connecting pipe 400 can be tightly abutted against the first sealing ring 300, thereby achieving a good sealing effect, effectively preventing the leakage of liquid or gas at the connection, and ensuring the safety and reliability of the pipeline system; the fixing member 200 is connected to the first connecting portion 110 of the joint body 100, and the connecting pipe 400 is fixed by the fixing member 200, so that the connecting pipe 400 can be easily abutted against the first sealing ring 300. This structure simplifies the installation steps, improves the installation efficiency, and reduces the installation cost; due to the setting of the first sealing ring 300, the joint structure can adapt to connecting pipes 400 of different sizes and types. At the same time, the design of the fixing member 200 also has strong versatility and can be used in conjunction with different types of joint bodies 100 and connecting pipes 400. Therefore, the connecting pipe joint structure disclosed in the present invention has strong adaptability and flexibility, and the entire joint structure is compact and reasonable, which not only reduces the use of materials and reduces production costs, but also improves the stability and reliability of the joint structure.

[0032] In some embodiments, Figure 2 and Figure 3 As shown, it also includes the connecting tube 400, one end of which is extended outward to be provided with an outer edge portion 410, and the outer edge portion 410 is abutted against the first sealing ring 300, the fixing member 200 is configured to be cylindrical, and a connecting channel is opened inside the fixing member 200, and the side wall of the connecting channel away from one end of the joint body 100 extends toward the inner side of the connecting channel to form a clamping portion 210, the fixing member 200 is sleeved on the outer side of the first connecting portion 110 of the joint body through the connecting channel, and the fixing member 200 is connected to the first connecting portion 110, and the clamping portion 210 is abutted against the side of the outer edge portion 410 facing away from the first sealing ring 300.

[0033] In this embodiment, the fixing member 200 is sleeved on the first connecting portion 110 and connected to the first connecting portion 110, and at the same time, the outer edge 410 of the connecting tube 400 is pressed against the first sealing member through the pressing portion 210 inside the fixing member 200, so as to achieve the connection of the connecting tube 400 on the first connecting portion 110. When in use, after the connecting tube 400 is in contact with the first sealing member, the fixing member 200 is sleeved on the end of the connecting tube 400 away from the first sealing member, and gradually moved to the first connecting portion 110, and connected to the first connecting portion 110. In the process of the fixing member 200 being connected to the first connecting portion 110, the pressing portion 210 gradually presses against the outer edge 410, and drives the outer edge 410 to press against the first sealing ring 300, thereby achieving the effect of increasing the tightness of the connection.

[0034] In one embodiment, the structure of the fixing member is a clamp structure, and the fixing member includes two clamp plates, both of which are semicircular, and the two ends of the semicircular are bent outward to form a mounting ear. One of the mounting ears is provided with an embedding groove, and correspondingly, a pin is provided on the mounting ear at the corresponding end of the other clamp plate that matches it. When the connecting pipe abuts against the first sealing ring, the two clamp plates are used to fix the connecting pipe to the first connecting part, so that the connecting pipe is not easy to loosen under the action of friction and is tightly pressed against the first sealing member.

[0035] In some embodiments, the inner wall of the fixing member is provided with a first thread structure, the outer surface of the first connecting portion is provided with a second thread structure, and the first thread structure is threadedly connected to the second thread structure.

[0036] In this embodiment, the fixing piece is sleeved on the first connecting part and is threadedly connected with the first connecting part. The threaded connection makes the connection between the fixing piece and the first connecting part tighter, and the threaded matching structure can further reduce gas leakage. In some embodiments, a clamping column can be provided on the inner wall of the fixing piece, and a clamping groove is provided on the first connecting part, which is clamped and matched with the clamping groove.

[0037] In some embodiments, Figure 4 As shown, the first mounting surface is provided with a first accommodating groove 111 , and the first sealing ring 300 is disposed in the first accommodating groove 111 .

[0038] In this embodiment, by providing the first receiving groove 111 on the first mounting surface to place the first sealing ring 300, the replacement of the first sealing ring 300 can be more convenient, and the first sealing ring 300 is not easily displaced or dropped. In some embodiments, the first sealing ring 300 can also be adhered to the first mounting surface by an adhesive layer, so as to facilitate the replacement of the first sealing ring 300.

[0039] In some embodiments, Figure 5 As shown, it also includes an air valve and a second sealing ring 500. The second sealing ring 500 is arranged on the second connecting portion 120. The second connecting portion 120 abuts against the air valve through the second sealing ring 500.

[0040] In this embodiment, a second sealing ring 500 is provided on the second connecting part 120. When the gas valve is connected to the second connecting part 120, the end face of the gas valve abuts against the second sealing ring 500, further strengthening the tightness of the connection between the gas valve and the second connecting part 120 and reducing gas leakage from the second connecting port.

[0041] In some embodiments, the second sealing ring is a nylon sealing ring.

[0042] In this embodiment, the nylon sealing ring has good wear resistance and can still maintain its sealing performance after long-term use, which helps to maintain the sealing effect for a long time and reduce the replacement frequency and maintenance cost. In addition, the nylon sealing ring is also highly corrosion-resistant and can withstand the corrosion effects of different gases.

[0043] In some embodiments, the air valve has a valve interface, the side wall of the valve interface is provided with a third threaded structure, the outer surface of the second connecting part is provided with a fourth threaded structure, the valve interface is sleeved on the outer side of the second connecting part, and the third threaded structure is threadedly connected to the fourth threaded structure.

[0044] In this embodiment, the gas valve is sleeved on the second connecting portion and is threadedly connected to the second connecting portion, which further improves the tightness of the connection between the gas valve and the second connecting portion and reduces gas leakage.

[0045] In some embodiments, Figure 5 As shown, the second connection portion 120 has a second mounting surface, the second mounting surface is provided with a second receiving groove 121 , and the second sealing ring 500 is disposed in the second receiving groove 121 .

[0046] In this embodiment, the second sealing ring 500 is arranged in a similar manner to the above-mentioned first sealing ring 300, and the details are not repeated here. The second sealing ring 500 can be arranged on the end face of the second connecting portion 120, or on the outer side wall of the second connecting portion 120, and is selected according to the specific connection structure, and is not limited here. For example, in some embodiments, the second sealing ring is arranged on the outer side wall of the second connecting portion, and when the air valve is connected to the second connecting portion, the valve interface end of the air valve abuts against the second sealing ring to reduce gas leakage. In some embodiments, the second accommodating groove is provided on the end face of the second connecting portion, and the side wall of the valve interface of the air valve extends outward to be provided with an outer edge portion, and the third thread is arranged on the inner wall of the outer edge portion of the air valve, and the outer edge portion is threadedly connected with the second connecting portion so that the valve interface of the air valve abuts against the second sealing ring on the end face of the second connecting portion. In one embodiment, the second connecting portion 120 extends outward at one end close to the first connecting portion 110 to form an abutting portion, and the side of the abutting portion facing away from the first connecting portion 110 is the second mounting surface.

[0047] In some embodiments, Figure 6 As shown, the joint body 100 is provided with a reinforcement structure 600 between the first connection portion 110 and the second connection portion 120 .

[0048] In this embodiment, the reinforcement structure 600 is provided between the first connection part 110 and the second connection part 120 of the connector body 100 to further enhance the stability of the overall structure of the connector, so that the connector body 100 is not easily deformed, thereby improving the connection reliability between the connecting pipe 400 and the first connection part 110, and the reliability of the connection between the air valve and the second connection part 120.

[0049] In a second aspect, the present disclosure provides a gas valve detection device, comprising a connecting pipe joint as described in any of the above aspects.

[0050] The gas valve detection device provided by the present disclosure uses the connecting pipe joint in any of the above embodiments, so that gas is not easily leaked during the gas valve detection process, and the detection accuracy of the gas valve is improved. At the same time, the disassembly and maintenance of the pipelines are more convenient.

[0051] In the embodiments provided in the present disclosure, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0052] It should be noted that in the present disclosure, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0053] Although the embodiments disclosed in the present disclosure are as above, the above contents are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. Any technician in the technical field to which the present disclosure belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present disclosure, but the scope of patent protection of the present disclosure shall still be subject to the scope defined in the attached claims.

Claims

1. A connecting pipe joint, characterized in that: include: A joint body, a fixing part and a first sealing ring, wherein a cavity is arranged inside the joint body, the joint body has a first connecting part and a second connecting part, the first connecting part has a first connecting port, the second connecting part has a second connecting port, the first connecting port and the second connecting port are both connected to the cavity, the end face of the first connecting part is a first mounting face, the first sealing ring is arranged on the first mounting face, the first sealing ring is used to abut against a connecting pipe, the fixing part is connected to the first connecting part of the joint body, and the fixing part is connected to the connecting pipe so that the connecting pipe abuts against the first sealing ring.

2. The connecting pipe joint according to claim 1, characterized in that: It also includes the connecting pipe, one end of which is extended outward to be provided with an outer edge portion, the outer edge portion is in contact with the first sealing ring, the fixing piece is arranged in a cylindrical shape, a connecting channel is provided inside the fixing piece, the side wall of the connecting channel away from one end of the joint body extends toward the inner side of the connecting channel to form a clamping portion, the fixing piece is sleeved on the outer side of the first connecting portion of the joint body through the connecting channel, and the fixing piece is connected to the first connecting portion, and the clamping portion is in contact with a side of the outer edge portion facing away from the first sealing ring.

3. The connecting pipe joint according to claim 2, characterized in that: The inner wall of the fixing member is provided with a first thread structure, the outer surface of the first connecting portion is provided with a second thread structure, and the first thread structure is threadedly connected with the second thread structure.

4. The connecting pipe joint according to claim 1, characterized in that: The first mounting surface is provided with a first accommodating groove, and the first sealing ring is arranged in the first accommodating groove.

5. The connecting pipe joint according to claim 1, characterized in that: It also includes an air valve and a second sealing ring, wherein the second sealing ring is arranged on the second connecting portion, and the second connecting portion abuts against the air valve through the second sealing ring.

6. The connecting pipe joint according to claim 5, characterized in that: The second sealing ring is a nylon sealing ring.

7. The connecting pipe joint according to claim 5, characterized in that: The air valve has a valve interface, the side wall of the valve interface is provided with a third threaded structure, the outer surface of the second connecting part is provided with a fourth threaded structure, the valve interface is sleeved on the outer side of the second connecting part, and the third threaded structure is threadedly connected to the fourth threaded structure.

8. The connecting pipe joint according to claim 5, characterized in that: The second connecting portion has a second mounting surface, the second mounting surface is provided with a second accommodating groove, and the second sealing ring is arranged in the second accommodating groove.

9. The connecting pipe joint according to any one of claims 1 to 8, characterized in that: The joint body is provided with a reinforcement structure between the first connection portion and the second connection portion.

10. A gas valve detection device, characterized in that: The invention comprises the connecting pipe joint according to any one of claims 1 to 9.

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