Bridge joint

Abstract

This application relates to the technical field of pipe fittings, specifically disclosing a bridge fitting, including a fitting body and a one-way valve installed inside the fitting body. A spiral groove is provided on the outer wall of the fitting body. One end of the fitting body is used to connect with a male connector of a tank truck, and the other end is used to connect with a female connector of a pipe fitting. When the fitting body is screwed into the female connector, the one-way valve opens, connecting the tank truck to the transport pipeline. When the fitting body is separated from the female connector, the one-way valve closes, cutting off the medium flow path. This application only requires selecting a suitable bridge fitting to connect the transport pipeline to the tank truck, shortening preparation time and improving overall transport efficiency and safety. Furthermore, installation only requires screwing to simultaneously connect the bridge fitting to the female connector and open the one-way valve, making operation simple.

Description

Technical Field

[0001] This application relates to the technical field of pipe fittings, and in particular to bridging fittings. Background Technology

[0002] In the process of transporting media such as petrochemicals, pipe joints are usually used to connect the transport pipelines in the tank loading and unloading area to the tank trucks to ensure the safe and efficient operation of the petrochemical loading and unloading process.

[0003] However, in actual transportation operations, the male connectors used for connection often have different specifications for different models of tank trucks. When it is necessary to continuously transport petrochemical products from multiple tank trucks equipped with different models of male connectors, operators have to replace the corresponding pipe fittings for each tank truck's male connector model.

[0004] On the one hand, each replacement of pipe fittings requires tedious disassembly, installation, and sealing tests, which not only increases the workload of operators but also easily leads to safety hazards due to improper operation, such as leakage of petrochemical media due to poor sealing. On the other hand, multiple replacements of pipe fittings will significantly extend the loading and unloading preparation time of each tanker truck, which will disrupt the overall transportation operation process and seriously reduce the overall efficiency of transporting petrochemical media. This problem is even more prominent when the tanker truck transportation volume is large and the transportation task is tight. Utility Model Content

[0005] In order to provide a self-sealing joint that enables quick connection, this application provides a bridge joint.

[0006] The bridge joint provided in this application adopts the following technical solution:

[0007] The bridging connector includes a connector body and a one-way valve installed inside the connector body. The outer wall of the connector body is provided with a spiral groove. One end of the connector body is used to connect with the male connector of a tank truck, and the other end of the connector body is used to connect with the female connector of a pipe fitting. When the connector body is screwed into the female connector, the one-way valve opens, and the tank truck is connected to the conveying pipeline. When the connector body is separated from the female connector, the one-way valve closes, cutting off the medium flow path.

[0008] By adopting the above technical solution, only a suitable bridging connector needs to be selected to connect the conveying pipeline and the tank truck, shortening the preparation time and improving the overall conveying efficiency and safety. In addition, the bridging connector itself has a spiral groove on the outside, which can simultaneously connect the bridging connector and the female pipe connector and open the one-way valve by screwing, making the operation simple. At the same time, the self-sealing function of the one-way valve avoids the risk of media leakage caused by improper operation, improving the safety of conveying media such as petrochemicals.

[0009] Optionally, the connector body includes a male connector body and a female connector body, which are fixedly connected and internally interconnected; the outer wall of the male connector body is provided with a spiral groove, and the male connector body is used to connect with the female connector of the pipe fitting; the end of the female connector body away from the male connector body is used to be fixedly connected with the male connector of the tank truck.

[0010] By adopting the above technical solution, the connector body consists of two parts: a male connector body and a female connector body. The structure is simple, and the appropriate connector body can be selected according to the requirements, which enhances the versatility and adaptability of the bridge connector.

[0011] Optionally, an abutment portion is integrally connected to the inner wall of the male connector body at the end away from the female connector body, and the one-way valve can seal against the abutment portion on the side near the female connector body; a fixing seat is fixedly connected to the inner wall of the end of the male connector body near the female connector body, and a guide sleeve is installed in the fixing seat. The one-way valve extends into the female connector body through the guide sleeve, and the one-way valve can slide along the axis of the guide sleeve; the end of the one-way valve away from the abutment portion can act on the tank truck male connector to allow the medium to flow.

[0012] By adopting the above technical solution, the contact part provides a reliable sealing reference for the check valve, while the fixed seat and guide sleeve ensure the stability and coaxiality of the check valve's sliding, avoiding the sealing failure caused by the check valve's offset. It precisely controls the opening and closing path of the check valve, improves sealing performance and operational reliability, and reduces the possibility of media leakage. When the check valve moves, it acts synchronously on the tank truck male end, realizing the synchronous opening of the bridge joint and the tank truck male end. The structure is simple, with low operating intensity and high efficiency.

[0013] Optionally, the one-way valve includes a valve core, a guide rod, a push rod, a push plate, and an elastic element arranged coaxially. The valve core is fixedly connected to the guide rod and can seal against the side of the abutment portion near the female head body. The guide rod extends into the female head body through the guide sleeve and can slide along the axial direction within the guide sleeve. The push rod is fixedly connected to the end of the guide rod away from the valve core, and the push plate is fixed to the end of the push rod away from the guide rod. The movement of the guide rod drives the push plate and the push rod to move synchronously. The push plate can act on the tank truck male head to allow the medium to flow. The elastic element is sleeved around the guide rod and can push the valve core to seal against the abutment portion.

[0014] By adopting the above technical solution, the elastic element ensures the sealing force of the check valve. When the guide rod slides along the guide sleeve, it acts precisely on the tank truck male end through the push plate, realizing the synchronous opening of the bridge joint and the tank truck male end, ensuring the continuity of media flow. At the same time, it simplifies the power transmission path for opening the check valve, so that the thrust when the female end of the pipe joint is screwed in can be efficiently converted into the opening action of the check valve, improving the convenience of operation and the reliability of sealing.

[0015] Optionally, the guide sleeve has a snap-fit ​​groove at one end near the abutment portion, one end of the elastic element abuts against the bottom of the snap-fit ​​groove, and the other end of the elastic element abuts against the end of the valve core near the guide rod; the elastic element can push the valve core to tightly abut against the abutment portion.

[0016] By adopting the above technical solution, the snap-fit ​​groove provides a stable installation and positioning reference for the elastic element, so that one end of the elastic element abuts against the bottom of the snap-fit ​​groove and the other end abuts against the valve core, ensuring that the thrust of the elastic element on the valve core is accurately along the axial direction, and avoiding the problem of uneven force on the valve core caused by the offset of the elastic element.

[0017] Optionally, the female head body includes a first connecting part and a second connecting part, the first connecting part and the second connecting part are fixedly connected; the outer side of the first connecting part is provided with an external thread, and the male head body is provided with an internal thread at one end near the female head body, the male head body and the female head body are fixed by threaded connection.

[0018] By adopting the above technical solution, the first connecting part and the second connecting part are easy to process. At the same time, the threaded connection method ensures the connection strength and sealing between the female head body and the male head body, ensuring the integrity of the medium flow path.

[0019] Optionally, the first connecting part is provided with an abutment sealing ring at one end near the second connecting part. When the bridge joint is connected to the tank truck, the abutment sealing ring abuts against the end of the tank truck's male connector.

[0020] By adopting the above technical solution, the abutment sealing ring can fill the tiny gap when the female head body is connected to the male head of the tank truck, reduce the risk of medium leakage from the connection gap, and improve the overall sealing performance.

[0021] Optionally, handles are symmetrically provided on both sides of the connector body.

[0022] By adopting the above technical solution, the handle provides a convenient gripping point for the operator, making the screwing operation of the connector body and the female pipe connector more labor-saving and stable, reducing the difficulty of operation and shortening the operation time.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This application only requires selecting a suitable bridge connector to connect the conveying pipeline and the tank truck, which shortens the preparation time and improves the overall conveying efficiency and safety of use.

[0025] 2. The bridge connector itself has a spiral groove on the outside. By screwing it on, the bridge connector and the female pipe connector can be connected at the same time and the one-way valve can be opened. The operation is simple and improves the overall transportation efficiency. At the same time, the self-sealing function of the one-way valve avoids the risk of media leakage caused by improper operation and improves the safety of media transportation such as petrochemicals.

[0026] 3. By setting a push rod and a push plate, and having the push rod and push plate move synchronously with the guide rod, the push plate precisely acts on the tank truck male connector, realizing the synchronous opening of the bridge connector and the tank truck male connector, ensuring the continuity of media flow; at the same time, it simplifies the power transmission path for opening the check valve, so that the thrust when the female connector of the pipe joint is screwed in can be efficiently converted into the opening action of the check valve, improving the convenience of operation and the reliability of sealing. Attached Figure Description

[0027] Figure 1 This is a half-sectional schematic diagram of an embodiment of this application;

[0028] Figure 2 This is a cross-sectional view of the bridge joint in the embodiment of this application when it is in a connected state;

[0029] Figure 3 This is a top view of an embodiment of this application.

[0030] Reference numerals: 1. Connector body; 11. Male connector body; 111. Abutment part; 12. Female connector body; 121. First connecting part; 122. Second connecting part; 123. Abutment sealing ring; 2. One-way valve; 21. Valve core; 22. Guide rod; 23. Fixing seat; 24. Guide sleeve; 25. Snap-fit ​​groove; 26. Elastic element; 27. Push rod; 28. Push plate; 3. Handle; 4. Tanker truck male connector; 5. Pipe connector female connector. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses a bridge connector, as shown in the embodiments below. Figure 1 and Figure 2The connector includes a connector body 1 and a one-way valve 2 installed inside the connector body 1. A spiral groove is provided on the outer wall of the connector body 1. One end of the connector body 1 connects to the tank truck male connector 4, and the other end connects to the pipe connector female connector 5. When the connector body 1 is screwed into the pipe connector female connector 5, the one-way valve 2 opens and acts on the one-way valve structure of the tank truck male connector 4, allowing the tank truck to connect to the transport pipeline, and media such as oil to flow in the bridge connector. When the connector body 1 is separated from the pipe connector female connector 5, the one-way valve 2 closes, cutting off the flow path of media such as oil, achieving a self-sealing effect. In use, simply select the bridge connector with the corresponding interface and connect it by screwing on the bridge connector, simplifying operation and improving operational safety.

[0033] The connector body 1 includes a male connector body 11 and a female connector body 12, which are fixedly connected and internally interconnected. The outer wall of the male connector body 11 is provided with a spiral groove, through which the male connector body 11 and the female connector 5 can be connected. The end of the female connector body 12 away from the male connector body 11 is fixedly connected to the tank truck male connector 4.

[0034] The female connector body 12 includes a first connecting part 121 and a second connecting part 122, which are fixedly connected by bolts. The outer side of the first connecting part 121 is provided with external threads, and the end of the male connector body 11 near the female connector body 12 is provided with internal threads. The male connector body 11 and the female connector body 12 are fixed by threaded connection. The end of the first connecting part 121 near the second connecting part 122 is provided with an abutment sealing ring 123. When the bridge connector is connected to the tank truck, the end of the tank truck male connector 4 abuts against the abutment sealing ring 123 to achieve a seal.

[0035] The male connector body 11, away from the female connector body 12, is integrally connected to an abutment portion 111, which is located on the inner wall of the male connector body 11. The one-way valve 2 includes a valve core 21 and a guide rod 22 arranged coaxially. The valve core 21 is designed in the shape of a frustum, and the shape of the valve core 21 corresponds to the inner contour of the abutment portion 111. The valve core 21 is located on the side of the abutment portion 111 closer to the female connector body 12, and the valve core 21 is in sealing contact with the abutment portion 111. At the same time, a sealing ring is installed on the contact surface between the valve core 21 and the abutment portion 111 for sealing. The guide rod 22 is integrally formed on the end of the valve core 21 closer to the female connector body 12.

[0036] The inner wall of the male head body 11 near the female head body 12 is threaded with a disc-shaped fixing seat 23. The fixing seat 23 has a through hole in the center. The guide rod 22 passes through the through hole and extends into the cavity of the female head body 12. Media such as oil can flow into the cavity of the female head body 12 through the fixing seat 23.

[0037] A guide sleeve 24 is installed between the guide rod 22 and the fixed base 23. The guide sleeve 24 and the fixed base 23 are integrally formed, and the guide rod 22 can slide along the axial direction in the guide sleeve 24. A snap-fit ​​groove 25 is opened at one end of the guide sleeve 24 near the abutment part 111. An elastic element 26 is sleeved on the periphery of the guide rod 22. The elastic element 26 is a compression spring. One end of the elastic element 26 abuts against the bottom of the snap-fit ​​groove 25, and the other end of the elastic element 26 abuts against the end of the valve core 21 near the guide rod 22. The elastic element 26 has an elastic force on the valve core 21, pushing the valve core 21 tightly against the abutment part 111.

[0038] A push rod 27 is fixedly connected to the end of the guide rod 22 away from the valve core 21. A push plate 28 is integrally formed at the end of the push rod 27 away from the guide rod 22. The push rod 27 drives the push plate 28 to move synchronously with the guide rod 22.

[0039] When the bridge joint needs to be opened, the male body 11 is screwed into the female pipe joint 5. As the male body 11 is screwed in deeper, the valve stem in the female pipe joint 5 acts on the valve core 21 and pushes the valve core 21 to slide toward one end of the female body 12. The valve core 21 separates from the abutment part 111. At this time, the elastic element 26 is in a compressed state. At the same time, the push plate 28 acts on the one-way valve structure in the tank truck male joint 4, which drives the connection of the tank to open synchronously. The tank truck is connected to the conveying pipeline, and the medium such as oil flows in the bridge joint.

[0040] When it is necessary to close the bridge joint, the male body 11 and the female pipe joint 5 are screwed in opposite directions. The valve stem in the female pipe joint 5 is separated from the valve core 21. Under the action of the elastic element 26, the valve core 21 moves to abut against the abutment part 111 to achieve self-sealing. At the same time, the push plate 28 is separated from the one-way valve structure in the tank truck, and the one-way valve structure in the tank truck also returns to the self-sealing state.

[0041] Reference Figure 3 The connector body 1 is symmetrically provided with handles 3 on both sides. The handles 3 have a U-shaped structure and are convenient for picking up and turning the connector body 1.

[0042] The implementation principle of the bridge joint disclosed in this application is as follows: Select a suitable bridge joint, install one end of the bridge joint on the tank truck male connector 4, and screw the other end into the pipe connector female connector 5; as the male connector body 11 is screwed in, the valve stem in the pipe connector female connector 5 acts on the valve core 21 and pushes the valve core 21 to slide towards one end of the female connector body 12, the valve core 21 separates from the abutment part 111, the tank truck is connected to the conveying pipeline, and petrochemical and other media flow in the bridge joint; when it is necessary to close, screw the bridge joint in the opposite direction to separate the valve stem in the pipe connector female connector 5 from the valve core 21, and the valve core 21 moves to abut against the abutment part 111 under the action of the elastic element 26 to achieve self-sealing.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bridge joint, characterized in that The device includes a connector body (1) and a one-way valve (2) installed inside the connector body (1). The outer wall of the connector body (1) is provided with a spiral groove. One end of the connector body (1) is used to connect with the male connector (4) of the tank truck, and the other end of the connector body (1) is used to connect with the female connector (5) of the pipe joint. When the connector body (1) is screwed into the female connector (5), the one-way valve (2) is opened, and the tank truck is connected to the conveying pipeline. When the connector body (1) is separated from the female connector (5), the one-way valve (2) is closed, cutting off the medium flow path.

2. The bridge joint of claim 1, wherein, The connector body (1) includes a male connector body (11) and a female connector body (12), which are fixedly connected and internally connected; the outer wall of the male connector body (11) is provided with a spiral groove, and the male connector body (11) is used to connect with the female connector (5); the end of the female connector body (12) away from the male connector body (11) is used to be fixedly connected with the tank truck male connector (4).

3. The bridge joint of claim 2, wherein, The male head body (11) has an integrally connected abutment part (111) on the inner wall of the end away from the female head body (12). The one-way valve (2) can seal against the abutment part (111) on the side near the female head body (12). The male head body (11) has a fixed seat (23) fixedly connected to the inner wall of the end near the female head body (12). A guide sleeve (24) is installed in the fixed seat (23). The one-way valve (2) passes through the guide sleeve (24) and extends into the female head body (12). The one-way valve (2) can slide along the axis of the guide sleeve (24). The end of the one-way valve (2) away from the abutment part (111) can act on the tank truck male head (4) to allow the medium to flow.

4. The bridge joint of claim 3, wherein, The one-way valve (2) includes a valve core (21), a guide rod (22), a push rod (27), a push plate (28), and an elastic element (26) arranged coaxially. The valve core (21) is fixedly connected to the guide rod (22). The valve core (21) can seal against the side of the abutment part (111) near the female head body (12). The guide rod (22) passes through the guide sleeve (24) and extends into the female head body (12). The guide rod (22) can slide along the axial direction in the guide sleeve (24). The push rod (27) is also fixedly connected to the female head body (12). 7) The push plate (28) is fixedly connected to the end of the guide rod (22) away from the valve core (21). The push plate (28) is fixed to the end of the push rod (27) away from the guide rod (22). The movement of the guide rod (22) drives the push plate (28) and the push rod (27) to move synchronously. The push plate (28) can act on the tank truck head (4) to allow the medium to flow. The elastic element (26) is sleeved on the periphery of the guide rod (22). The elastic element (26) can push the valve core (21) so that the valve core (21) seals against the contact part (111).

5. The bridge joint of claim 4, wherein, The guide sleeve (24) has a snap-fit ​​groove (25) at one end near the abutment part (111). One end of the elastic member (26) abuts against the bottom of the snap-fit ​​groove (25), and the other end of the elastic member (26) abuts against the end of the valve core (21) near the guide rod (22). The elastic member (26) can push the valve core (21) to abut tightly against the abutment part (111).

6. The bridge joint of claim 2, wherein, The female head body (12) includes a first connecting part (121) and a second connecting part (122), the first connecting part (121) and the second connecting part (122) are fixedly connected; the outer side of the first connecting part (121) is provided with an external thread, and the male head body (11) is provided with an internal thread at one end near the female head body (12), and the male head body (11) and the female head body (12) are fixed by threaded connection.

7. The bridge joint of claim 6, wherein, The first connecting part (121) is provided with an abutment sealing ring (123) at one end near the second connecting part (122). When the bridge joint is connected to the tank truck, the abutment sealing ring (123) abuts against the end of the tank truck male head (4).

8. The bridge joint of claim 1, wherein, The connector body (1) is provided with handles (3) symmetrically on both sides.

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