A pipe connection locking device

Abstract

This utility model discloses a pipe connection locking device, belonging to the field of pipe connection locking technology. It includes a locking ring, with connecting plates symmetrically arranged on the outer side of the locking ring. A sealing ring is snapped into the locking ring, and a first connecting part and a second connecting part are arranged within the sealing ring. A pin is rotatably connected between the connector and the screw, with the pin located on one side of the center point of the connector. A connecting seat is sleeved on the outer side of the screw, and an arc-shaped groove for use with the connector is formed on the outer surface of the connecting seat. This utility model, through the symmetrically arranged connecting plates and screw structure, ensures uniform locking force, avoids pipe misalignment during connection, and can specifically fit pipes of different diameters, ensuring the sealing and fit of the connection, effectively preventing leakage. Locking is achieved through the screw thread transmission via a handle, making operation convenient and labor-saving, and the locking effect is stable and reliable, ensuring the firmness and safety of the pipe connection.

Description

Technical Field

[0001] This utility model belongs to the field of pipe connection locking technology, specifically a pipe connection locking device. Background Technology

[0002] In fields such as fluid transportation, municipal engineering, and industrial production, pipeline connection is a key link to ensure the normal operation of the system. The sealing, robustness, and ease of operation of the connection directly affect the safety and operating efficiency of the overall system. Currently, for the connection needs of pipelines of different diameters, the commonly used connection methods in the industry mainly include flange connection, threaded connection, clamp connection, and welding connection.

[0003] The existing technology has the following shortcomings:

[0004] The sealing structure has poor adaptability. Traditional seals are mostly designed with a single inner diameter, which cannot fit tightly against the outer wall of pipes with different diameters at the same time. This can easily create gaps at the joints of different diameters, leading to fluid leakage.

[0005] Secondly, the locking force is unevenly distributed. The locking structure of most connecting devices is asymmetrical, which can easily cause the pipeline to be under unbalanced force during operation, resulting in misaligned connections and further exacerbating the sealing risks.

[0006] The operation is not convenient enough, and some connection methods require special tools or complicated steps to complete the installation, which makes it difficult to meet the needs of rapid connection, especially in emergency repair or field operation scenarios. Utility Model Content

[0007] To overcome the above-mentioned defects, this utility model provides a pipe connection locking device, which solves the technical problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pipe connection locking device, comprising a locking ring, a connecting plate symmetrically arranged on the outer side of the locking ring, a screw threadedly connected to the connecting plate, a connector rotatably connected to one end of the screw, a handle fixedly connected to the outer side of the connector, a sealing ring snapped into the locking ring, a first connecting part and a second connecting part provided within the sealing ring, flanges fixedly connected to both sides of the sealing ring, the first connecting part being higher than the second connecting part, and a stepped relationship between the first connecting part and the second connecting part, a pin rotatably connected between the connector and the screw, the pin being located on one side of the center point of the connector, a connecting seat sleeved on the outer side of the screw, and an arc-shaped groove for cooperating with the connector being formed on the outer surface of the connecting seat.

[0009] As a further embodiment of this utility model: a metal washer is provided between the connecting seat and the connecting plate.

[0010] As a further embodiment of this utility model: the connecting plate has a threaded hole for use with the screw.

[0011] As a further embodiment of this utility model: the retaining edge is located on both sides of the locking ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The symmetrically arranged connecting plates and screw structure ensure uniform locking force and prevent skewing during pipe connection. The stepped design of the sealing ring, combined with the flange, can specifically fit pipes of different diameters, ensuring the sealing and fit of the connection and effectively preventing leakage. The locking is achieved through the screw thread transmission via the handle, which is convenient and labor-saving, and the locking effect is stable and reliable, ensuring the firmness and safety of the pipe connection.

[0014] 2. The threaded hole provides a precise threaded fit for the screw, ensuring stable locking or unlocking during screw rotation. The metal washer increases the contact area between the connector and the connecting plate, dispersing pressure and reducing wear between them. It also enhances the stability and sealing of the connection, preventing loosening due to long-term use or vibration. The retaining edge is located on both sides of the locking ring, which better restricts the position of the sealing ring and prevents it from shifting during locking, further ensuring the tightness of the sealing ring and the pipe body and improving the overall sealing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled screw and handle structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled locking ring and sealing ring structure of this utility model.

[0018] In the diagram: 1. Locking ring; 2. Sealing ring; 3. Connecting plate; 4. Screw; 5. Threaded hole; 6. Connecting seat; 7. Metal washer; 8. Connecting head; 9. Handle; 10. Pin; 11. First connecting part; 12. Second connecting part; 13. Edge retainer. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figures 1-3 As shown, this utility model provides a technical solution:

[0021] A pipe connection locking device includes a locking ring 1, a connecting plate 3 symmetrically arranged on the outer side of the locking ring 1, a screw 4 threadedly connected to the connecting plate 3, a connector 8 rotatably connected to one end of the screw 4, a handle 9 fixedly connected to the outer side of the connector 8, a sealing ring 2 snapped into the locking ring 1, a first connecting part 11 and a second connecting part 12 arranged inside the sealing ring 2, and baffles 13 fixedly connected to both sides of the sealing ring 2, the first connecting part 11 being higher than the second connecting part 12, and the first connecting part 11 and the second connecting part 12 forming a stepped shape, a pin 10 rotatably connected between the connector 8 and the screw 4, the pin 10 being located on one side of the center point of the connector 8, and a connecting seat 6 sleeved on the outer side of the screw 4, the outer surface of the connecting seat 6 having an arc-shaped groove for cooperating with the connector 8;

[0022] Specifically, first, the sealing ring 2 is snapped into the locking ring 1. Then, the two pipe sections to be connected are joined together in the manner of the larger pipe being fitted onto the outer wall of the smaller pipe, so that the first connecting part 11 of the sealing ring 2 fits against the outer wall of the smaller pipe and the second connecting part 12 fits against the outer wall of the larger pipe. The stepped structure between the two and the flange 13 are used to make the inner wall of the sealing ring 2 tightly connected to the connection point of the two pipe sections and form a flat and tight fit. Then, by turning the handle 9, the screw 4 is driven to rotate in the connecting plate 3 under the action of the pin 10, so that the arc groove on the connecting seat 6 fits with the connecting head 8, and the locking ring 1 is gradually tightened to achieve the connection and locking of the two pipe sections.

[0023] The symmetrically arranged connecting plate 3 and screw 4 structure ensures uniform locking force and prevents skewing during pipe connection. The stepped design of the sealing ring 2, in conjunction with the flange 13, can specifically fit pipes of different diameters, ensuring the sealing and fit of the connection and effectively preventing leakage. The screw 4 is operated by the handle 9 and locked by the threaded transmission of the screw 4. The operation is convenient and labor-saving, and the locking effect is stable and reliable, ensuring the firmness and safety of the pipe connection.

[0024] A metal washer 7 is provided between the connecting plate 3 and the connecting seat 6. The connecting plate 3 has a threaded hole 5 for use with the screw 4. The retaining edge 13 is located on both sides of the locking ring 1.

[0025] Specifically, when the pipe connection is locked by the screw 4 and the threaded hole 5 of the connecting plate 3, the metal washer 7 will naturally be between the connecting seat 6 and the connecting plate 3. As the handle 9 drives the screw 4 to rotate, the metal washer 7 plays a role between the connecting seat 6 and the connecting plate 3. At the same time, the flange 13, because it is located on both sides of the locking ring 1, will further assist in positioning and sealing during the process of the sealing ring 2 and the pipe body fitting together.

[0026] The threaded hole 5 provides a precise thread fit foundation for the screw 4, ensuring that the screw 4 can stably achieve locking or loosening action when rotating. The metal washer 7 can increase the contact area between the connecting seat 6 and the connecting plate 3, distribute pressure, reduce wear between the two, and enhance the stability and sealing of the connection, avoiding loosening due to long-term use or vibration. The retaining edge 13 is located on both sides of the locking ring 1, which can better restrict the position of the sealing ring 2, prevent it from shifting during the locking process, further ensure the tightness of the sealing ring 2 and the tube body, and improve the overall sealing effect.

[0027] The working principle of this utility model is as follows:

[0028] First, the sealing ring 2 is snapped into the locking ring 1. The first connecting part 11 and the second connecting part 12, which are stepped inside the sealing ring 2, are fitted to the outer wall of the small tube and the outer wall of the large tube respectively. At the same time, the retaining edges 13 on both sides of the sealing ring 2 are located on both sides of the locking ring 1 to further restrict the position of the sealing ring 2 and prevent it from shifting. This makes the inner wall of the sealing ring 2 and the connection between the two tube sections form a flat and tight fit, completing the initial sealing and positioning.

[0029] Secondly, the threaded hole 5 inside the connecting plate 3 provides a precise thread fit for the screw 4. When the operator turns the handle 9 on the outside of the connector 8, the screw 4 is driven to rotate stably in the threaded hole 5 by the eccentrically set pin 10 between the connector 8 and the screw 4. At the same time, the connecting seat 6 on the outside of the screw 4 cooperates with the connector 8 through the arc groove on the outer surface, converting the force of the handle 9 into the force of tightening the locking ring 1. The connecting plate 3 and the screw 4 are symmetrically arranged on the outside of the locking ring 1 to ensure that the locking force is evenly applied to the ring body and to prevent the pipe connection from being skewed.

[0030] It is worth mentioning that when the screw 4 drives the connecting seat 6 to move, the metal washer 7 located between the connecting seat 6 and the connecting plate 3 can increase the contact area between the two, disperse the pressure, reduce the wear of the parts caused by long-term use or vibration, and at the same time enhance the stability and sealing of the connection, avoid loosening problems, and further ensure the reliability of the device connection.

[0031] Finally, through the synergistic effect of the sealing ring 2-step structure, the flange 13 positioning, the threaded drive, the symmetrical locking force distribution, and the metal washer 7, the threaded drive enables convenient and labor-saving operation while ensuring a stable and reliable locking effect. Ultimately, this achieves a firm connection between the two pipe sections and an effective seal at the connection, ensuring the pipe connection's strength, safety, and leak-proof capability.

[0032] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pipe connection locking device, comprising a locking ring (1), characterized in that: The locking ring (1) is symmetrically arranged with a connecting plate (3) on its outer side. The connecting plate (3) is internally threaded with a screw (4). One end of the screw (4) is rotatably connected with a connector (8). The connector (8) is fixedly connected with a handle (9) on its outer side. The locking ring (1) is fitted with a sealing ring (2). The sealing ring (2) is provided with a first connecting part (11) and a second connecting part (12). The sealing ring (2) is fixedly connected with a flange (13) on both sides. The first connecting part (11) is higher than the second connecting part (12). The first connecting part (11) and the second connecting part (12) are stepped. The connector (8) and the screw (4) are rotatably connected with a pin (10). The pin (10) is located on one side of the center point of the connector (8). The screw (4) is fitted with a connecting seat (6). The outer surface of the connecting seat (6) is provided with an arc-shaped groove for use with the connector (8).

2. The pipe connection locking device according to claim 1, characterized in that: A metal washer (7) is provided between the connecting seat (6) and the connecting plate (3).

3. The pipe connection locking device according to claim 1, characterized in that: The connecting plate (3) has a threaded hole (5) for use with the screw (4).

4. A pipe connection locking device according to claim 1, characterized in that: The retaining edge (13) is located on both sides of the locking ring (1).

Images