A plastic-lined tube structure for easy connection

Abstract

This utility model belongs to the field of pipe connection technology, specifically relating to a convenient plastic-lined pipe structure, including a first plastic-lined pipe and a second plastic-lined pipe. The first and second plastic-lined pipes are connected together by two sets of clamping mechanisms. Each set of clamping mechanisms includes a first connecting plate and a second connecting plate. Baffles are fixedly connected to both sides of the first connecting plate, and clamping members are rotatably connected inside the two baffles. A locking block is fixedly connected to the outside of the second connecting plate, and the locking block is engaged inside the clamping member. When using this utility model, moving the second plastic-lined pipe will cause the second connecting plate to move. At the same time, the second connecting plate will cause the locking block to move into the clamping member on one side of the baffle. During the movement, the locking block will press against the surface of the clamping member through its outer arc surface, completing the movement of the locking block into the clamping member. This makes it convenient and quick to connect the second and first plastic-lined pipes without the need for cumbersome operations such as flange bolts.

Description

Technical Field

[0001] This utility model belongs to the field of pipe connection technology, specifically relating to a plastic-lined pipe structure that facilitates connection. Background Technology

[0002] Plastic-lined pipes, with their high strength metal base and corrosion resistance plastic lining, are widely used in water supply and drainage, chemical media transportation, and other fields. However, the connection process remains a key bottleneck restricting their efficiency.

[0003] Existing plastic-lined pipe connections rely heavily on traditional structures such as flanges and threads. The operation process is cumbersome and requires high personnel skills. Flange connections require tightening multiple sets of bolts one by one, while threaded connections require wrapping sealing tape in advance and repeatedly adjusting the alignment. Not only is it difficult for a single person to complete the work efficiently, but in a confined installation space, it is also necessary to adjust the posture multiple times, which seriously slows down the construction or emergency repair progress. Subsequent maintenance requires repeating the cumbersome steps of disassembly and reassembly. Utility Model Content

[0004] The purpose of this utility model is to provide a convenient connection structure for plastic-lined pipes. In use, moving the second plastic-lined pipe will cause the second connecting plate to move. At the same time, the second connecting plate will cause the locking block to move into the clamping member on one side of the baffle. During the movement, the locking block will press against the surface of the clamping member through its outer arc surface, thus completing the movement of the locking block into the clamping member. This makes it convenient and quick to connect the second plastic-lined pipe and the first plastic-lined pipe without the need for cumbersome operations such as flange bolts.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A conveniently connected plastic-lined tube structure includes a first plastic-lined tube and a second plastic-lined tube. The first plastic-lined tube and the second plastic-lined tube are snapped together by two sets of snap-fit ​​mechanisms. Each set of snap-fit ​​mechanisms includes a first connecting plate and a second connecting plate, which are respectively fixedly connected to the outside of the first plastic-lined tube and the second plastic-lined tube. Baffles are fixedly connected to both sides of the first connecting plate. Clamping members are rotatably connected inside the two baffles. A locking block is fixedly connected to the outside of the second connecting plate. The locking block is snapped into the inside of the clamping member.

[0007] Furthermore, the clamping member includes a first arc-shaped clamping plate and a second arc-shaped clamping plate. A rotating rod is rotatably connected inside the first arc-shaped clamping plate and the second arc-shaped clamping plate. The rotating rod is rotatably connected inside the two baffles. Movable elastic members are fixedly connected to the outer sides of the first arc-shaped clamping plate and the second arc-shaped clamping plate. The movable elastic members are connected to the first connecting plate.

[0008] Furthermore, the movable elastic component includes a shaped plate, which is fixedly connected to the outside of the first arc-shaped clamping plate or the second arc-shaped clamping plate, and a return spring is fixedly connected between the shaped plate and the first connecting plate.

[0009] Furthermore, a pull rod is inserted into the return spring, one end of the pull rod is fixedly connected to the irregular plate, a groove is provided on the first connecting plate, and the other end of the pull rod passes through the groove and is fixedly connected to a pull ring.

[0010] Furthermore, the inner walls of the first and second arc-shaped clamps are provided with multiple anti-slip grooves.

[0011] Furthermore, handles are fixedly connected to the outer sides of both the first and second plastic-lined tubes, and anti-slip sleeves are fitted onto the outer sides of the handles.

[0012] Furthermore, a sealing ring is fixedly connected to the inner wall of the second plastic-lined tube, and the inner wall of the first plastic-lined tube can be fitted onto the circumferential side of the sealing ring.

[0013] The technical effects achieved by this utility model are as follows:

[0014] When using the convenient connection plastic-lined pipe structure of this utility model, moving the second plastic-lined pipe will cause the second connecting plate to move. At the same time, the second connecting plate will cause the locking block to move into the clamping member on one side of the baffle. During the movement, the locking block will press against the surface of the clamping member through its outer arc surface, thus completing the movement of the locking block into the clamping member. This makes it convenient and quick to connect the second plastic-lined pipe and the first plastic-lined pipe without the need for cumbersome operations such as flange bolts. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a structural schematic diagram of the first connecting plate and the second connecting plate of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the clamping component, return spring, and pull rod in the figure of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the first arc-shaped clamping plate and the second arc-shaped clamping plate in the figure of this utility model.

[0020] The list of components represented by each number in the attached diagram is as follows:

[0021] 1. First plastic-lined pipe; 2. Second plastic-lined pipe; 3. First connecting plate; 4. Second connecting plate; 5. Clamping block; 6. Baffle; 7. Handle; 8. Anti-slip sleeve; 9. Pull ring; 10. Return spring; 11. Pull rod; 12. Irregularly shaped plate; 13. First arc-shaped clamping plate; 14. Sealing ring; 15. Second arc-shaped clamping plate. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figure 1 - Figure 5 As shown, a conveniently connected plastic-lined tube structure includes a first plastic-lined tube 1 and a second plastic-lined tube 2. The first plastic-lined tube 1 and the second plastic-lined tube 2 are snapped together by two sets of snap-fit ​​mechanisms. Each set of snap-fit ​​mechanisms includes a first connecting plate 3 and a second connecting plate 4, which are respectively fixedly connected to the outside of the first plastic-lined tube 1 and the second plastic-lined tube 2. Baffles 6 are fixedly connected to both sides of the first connecting plate 3, and clamping members are rotatably connected inside the two baffles 6. A locking block 5 is fixedly connected to the outside of the second connecting plate 4, and the locking block 5 is engaged inside the clamping member.

[0024] In use, moving the second plastic-lined tube 2 will cause the second connecting plate 4 to move. At the same time, the second connecting plate 4 will cause the locking block 5 to move into the clamping part on one side of the baffle 6. During the movement, the locking block 5 will press against the surface of the clamping part through its outer arc surface, thus completing the movement of the locking block 5 into the clamping part. This makes it convenient and quick to connect the second plastic-lined tube 2 and the first plastic-lined tube 1 without the need for cumbersome operations such as flange bolts.

[0025] like Figures 1-5As shown, the clamping components include a first arc-shaped clamping plate 13 and a second arc-shaped clamping plate 15. A rotating rod is rotatably connected inside the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15. The rotating rod is rotatably connected inside two baffles 6. Movable elastic members are fixedly connected to the outer sides of both the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15. The movable elastic members are connected to the first connecting plate 3. In use, when the clamping block 5 presses against the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15, the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15 will rotate via the rotating rod, with an opening on one side... The locking mechanism engages from both sides of the locking block 5 towards the center, wrapping around the locking block 5 from both sides. During rotation, the movable elastic components, such as torsion springs and tension springs, connecting the outer sides of the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15 are gradually charged. When the openings on one side of the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15 completely engage the locking block 5 and form a closed locking cavity, the movable elastic components release their elasticity, firmly locking the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15 in the current position, reducing loosening, and completing the automatic locking action after engagement, thus achieving a stable locking of the locking mechanism.

[0026] like Figure 2 , Figure 3 Figure 4 As shown, the movable elastic component includes a shaped plate 12, which is fixedly connected to the outside of the first arc-shaped clamping plate 13 or the second arc-shaped clamping plate 15. A return spring 10 is fixedly connected between the shaped plate 12 and the first connecting plate 3. In use, when the first arc-shaped clamping plate 13 or the second arc-shaped clamping plate 15 completely engages the locking block 5 and forms a closed locking cavity, the return spring 10 releases its elastic force. The shaped plate 12 applies a reverse pulling or pushing force to the first arc-shaped clamping plate 13 or the second arc-shaped clamping plate 15, locking the two arc-shaped clamping plates in the locking position and achieving a stable locking of the locking mechanism.

[0027] like Figure 2 , Figure 3 , Figure 4 As shown, a pull rod 11 is inserted into the return spring 10. One end of the pull rod 11 is fixedly connected to the irregular plate 12. A groove is provided on the first connecting plate 3. The other end of the pull rod 11 passes through the groove and is fixedly connected to a pull ring 9. When unlocking is required, the pull ring 9 is pulled first, which causes the pull rod 11, which is fixed to the pull ring 9, to slide along the groove of the first connecting plate 3. The other end of the pull rod 11 is fixed on the irregular plate 12. At the same time, the irregular plate 12 and the arc-shaped clamp connected to it are pulled to rotate around the rotating rod. At this time, the return spring 10 is stretched and stored. The first arc-shaped clamp 13 and the second arc-shaped clamp 15 open. At that time, the locking block 5 is pulled out, which releases the clamping force of the first arc-shaped clamp 13 and the second arc-shaped clamp 15 on the locking block 5.

[0028] like Figure 4 , Figure 5As shown, the inner walls of the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15 are provided with multiple anti-slip grooves. When in use, the anti-slip grooves on the inner walls of the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15 fit tightly against the surface of the locking block 5, increasing the static friction between the two, reducing the sliding of the locking block 5 within the first arc-shaped clamping plate 13 and the second arc-shaped clamping plate 15, and further increasing the locking stability.

[0029] like Figure 1 , Figure 2 As shown, handles 7 are fixedly connected to the outer sides of the first plastic-lined tube 1 and the second plastic-lined tube 2. Anti-slip sleeves 8 are fitted on the outer sides of the handles 7. When the operator holds the handles 7 on the outer sides of the first plastic-lined tube 1 and the second plastic-lined tube 2, the anti-slip sleeves 8 on the outer sides of the handles 7 can increase the friction of the hand and reduce slippage when applying force. The port of the first plastic-lined tube 1 and the second plastic-lined tube 2 is connected by applying pushing force through the handles 7.

[0030] like Figures 1-5 As shown, a sealing ring 14 is fixedly connected to the inner wall of the second plastic-lined tube 2. The inner wall of the first plastic-lined tube 1 can be fitted onto the circumferential side of the sealing ring 14. In use, when the first plastic-lined tube 1 and the second plastic-lined tube 2 are locked together, they form a radial compression on the sealing ring 14, making the sealing ring 14 tightly fit against the inner wall of the first plastic-lined tube 1 and the inner wall of the second plastic-lined tube 2, thereby strengthening the sealing effect and further improving the locking stability and sealing performance.

[0031] The working principle of this utility model is as follows: When in use, the second plastic-lined tube 2 is moved, which will drive the second connecting plate 4 to move. At the same time, the second connecting plate 4 will drive the locking block 5 to move into the clamping part on one side of the baffle 6. During the movement, the locking block 5 will press against the surface of the clamping part through its outer arc surface, thus completing the movement of the locking block 5 into the clamping part. This makes it convenient and quick to connect the second plastic-lined tube 2 and the first plastic-lined tube 1 without the need for cumbersome operations such as flange bolts.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A convenient connection plastic lined pipe construction, characterized by: It includes a first plastic-lined tube (1) and a second plastic-lined tube (2). The first plastic-lined tube (1) and the second plastic-lined tube (2) are connected together by two sets of clamping mechanisms. Each set of clamping mechanisms includes a first connecting plate (3) and a second connecting plate (4) that are respectively fixedly connected to the outside of the first plastic-lined tube (1) and the second plastic-lined tube (2). Both sides of the first connecting plate (3) are fixedly connected to baffles (6). Clamping members are rotatably connected inside the two baffles (6). A locking block (5) is fixedly connected to the outside of the second connecting plate (4). The locking block (5) is clamped inside the clamping member.

2. A convenient connection plastic lined pipe construction according to claim 1, wherein: The clamping component includes a first arc-shaped clamping plate (13) and a second arc-shaped clamping plate (15). A rotating rod is rotatably connected inside the first arc-shaped clamping plate (13) and the second arc-shaped clamping plate (15). The rotating rod is rotatably connected inside the two baffles (6). Movable elastic members are fixedly connected to the outer sides of the first arc-shaped clamping plate (13) and the second arc-shaped clamping plate (15). The movable elastic members are connected to the first connecting plate (3).

3. The easily connected plastic-lined pipe structure according to claim 2, characterized in that: The movable elastic component includes a shaped plate (12), which is fixedly connected to the outside of the first arc-shaped clamp (13) or the second arc-shaped clamp (15), and a return spring (10) is fixedly connected between the shaped plate (12) and the first connecting plate (3).

4. The easily connected plastic-lined pipe structure according to claim 3, characterized in that: A pull rod (11) is inserted into the return spring (10). One end of the pull rod (11) is fixedly connected to the irregular plate (12). A groove is provided on the first connecting plate (3). The other end of the pull rod (11) passes through the groove and is fixedly connected to a pull ring (9).

5. The easily connected plastic-lined pipe structure according to claim 3, characterized in that: Multiple anti-slip grooves are provided on the inner walls of the first arc-shaped clamp (13) and the second arc-shaped clamp (15).

6. The easily connected plastic-lined pipe structure according to claim 1, characterized in that: The first plastic-lined tube (1) and the second plastic-lined tube (2) are both fixedly connected to handles (7), and the handles (7) are fitted with anti-slip sleeves (8).

7. The easily connected plastic-lined pipe structure according to claim 1, characterized in that: The inner wall of the second plastic-lined tube (2) is fixedly connected with a sealing ring (14), and the inner wall of the first plastic-lined tube (1) can be fitted onto the circumferential side of the sealing ring (14).

Images