Protective structure for steel-plastic composite pipe

Abstract

The utility model relates to the technical field of composite pipe protection, and provides a protection structure for a steel-plastic composite pipe, which comprises a first composite pipe, a second composite pipe, a blocking ring, a rubber sealing ring and a sealing assembly, and the second composite pipe is inserted into the inner wall of the first composite pipe; the blocking ring is arranged on the outer wall of the first composite pipe and the outer wall of the second composite pipe, and the rubber sealing ring is connected to one end of the first composite pipe in a sleeving mode. The sealing assembly is arranged on the outer wall of the rubber sealing ring in a sleeving mode. Through the arrangement of the sealing assembly, after the two composite pipes are connected, pressing sealing can be conducted, after the movable block extrudes the rubber sealing ring, the rubber sealing ring can make close contact with the joint of the composite pipes, and the phenomena of water pipe breakage and water leakage caused by internal pressure and the like are avoided; therefore, the installation is easier, and the processing difficulty can be reduced during production.

Description

Technical Field

[0001] This utility model belongs to the field of composite pipe protection technology, specifically relating to a protective structure for steel-plastic composite pipes. Background Technology

[0002] Steel-plastic composite pipe is a composite pipe that combines the strength of steel pipe with the corrosion resistance of plastic. It is made by bonding a steel pipe matrix with inner and outer plastic layers. Its advantages include corrosion resistance, high pressure resistance, smooth inner wall that does not scale, convenient construction, and long service life. It is suitable for water supply, construction, industrial fluid transportation, agricultural irrigation, and cable protection. When using it, attention should be paid to proper installation, avoiding mechanical damage, and regular maintenance to ensure its safety and long-term performance.

[0003] A known authorized patent with application number 202322004458.1 discloses a protective structure for pipe connections with good sealing effect. The structure includes a pipe, a mounting bracket on the pipe, a sliding bracket on the mounting bracket, a protective device on the mounting bracket, and a buffer device on the sliding bracket. The protective device includes a worm gear, which is rotatably connected to the inner side wall of the mounting bracket via a bearing. A worm wheel is meshed with the worm gear, and a bidirectional threaded rod is fixedly connected to the inner ring of the worm wheel. Rotating a turntable causes the worm gear to rotate, which in turn drives the worm wheel to rotate, which in turn drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod causes the sliding plate to move, which in turn moves a clamping plate. The clamping plate clamps and fixes air conditioning pipes of different sizes, reducing the risk of damage to the pipe from stones falling into the pipe and damaging the outer wall.

[0004] However, during the implementation of the relevant technology, the following problems were found with the above technical solution: When in use, the device is difficult to effectively seal the pipe connection. Under high pressure and long-term use, the pipe connection may leak due to factors such as connection strength.

[0005] Therefore, a protective structure for steel-plastic composite pipes is proposed to solve the above problems. Utility Model Content

[0006] This utility model proposes a protective structure for steel-plastic composite pipes, which solves the problem in related technologies where the device is difficult to effectively seal the pipe joints, and leakage occurs at the joints due to factors such as connection strength under high pressure and long-term use.

[0007] The technical solution of this utility model is as follows: a protective structure for steel-plastic composite pipe, comprising: a first composite pipe, a second composite pipe, a blocking ring, a rubber sealing ring and a sealing assembly, wherein the second composite pipe is inserted into the inner wall of the first composite pipe;

[0008] The blocking ring is disposed on the outer wall of the first composite pipe and the second composite pipe, and the rubber sealing ring is sleeved on one end of the first composite pipe;

[0009] The sealing component is fitted onto the outer wall of the rubber sealing ring.

[0010] Preferably, the sealing assembly includes an external threaded sleeve, an inner sealing ring, a plurality of movable blocks, and a handle. The external threaded sleeve is threadedly connected to the outer wall of the inner sealing ring. The inner sealing ring is sleeved on the outer wall of the second composite pipe. The movable blocks are slidably connected to the outer wall of the inner sealing ring. The inner wall of the external threaded sleeve and the outer wall of the movable blocks are inclined and parallel. The handle is fixedly connected to the other end of the inner sealing ring.

[0011] Preferably, the first composite pipe includes a first main pipe, a female connector, and a fixing mark. The female connector is fixedly connected to one end of the first composite pipe, and the fixing mark is formed on the inner wall of the female connector.

[0012] Preferably, the second composite pipe includes a second main pipe, a male connector, and a fixing tooth. The male connector is disposed at one end of the second main pipe, the fixing tooth is disposed on the inner wall of the male connector, the male connector is inserted into the inner wall of the female connector, and the fixing tooth is engaged with the inner wall of the fixing groove.

[0013] Preferably, the rubber sealing ring is fitted onto the connection between the first composite pipe and the second composite pipe, and the rubber sealing ring is located between the two blocking rings.

[0014] Preferably, the female connector and the male connector are in a flexible interference fit.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] By setting up the sealing component, the two composite pipes can be compressed and sealed after connection. After the moving block squeezes the rubber sealing ring, the rubber sealing ring can be tightly contacted at the joint of the composite pipe, avoiding water pipe rupture and leakage due to internal pressure and other reasons. The separate design of the sealing component and the composite pipe makes installation easier and reduces processing difficulty during production. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the first composite pipe of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the second composite pipe of this utility model;

[0022] Figure 5 This is a cross-sectional three-dimensional structural diagram of the present invention.

[0023] In the diagram: 1. First composite pipe; 11. First main pipe; 12. Female connector; 13. Fixing mark; 2. Second composite pipe; 21. Second main pipe; 22. Female connector; 23. Fixing tooth; 3. Retaining ring; 4. Rubber sealing ring; 5. Sealing assembly; 51. External threaded sleeve; 52. Inner sealing ring; 53. Moving block; 54. Handle. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Implementation

[0026] Please see Figure 1 -5, a protective structure for steel-plastic composite pipe, comprising: a first composite pipe 1, a second composite pipe 2, a blocking ring 3, a rubber sealing ring 4 and a sealing component 5, wherein the second composite pipe 2 is inserted into the inner wall of the first composite pipe 1;

[0027] The blocking ring 3 is set on the outer wall of the first composite pipe 1 and the second composite pipe 2, and the rubber sealing ring 4 is sleeved on one end of the first composite pipe 1;

[0028] The sealing component 5 is fitted onto the outer wall of the rubber sealing ring 4.

[0029] The technical solution provided in this embodiment is as follows: During connection, firstly, the sealing component 5 is fitted onto the outside of the first composite pipe 1. Next, the rubber sealing ring 4 is fitted onto the outer wall of the first composite pipe 1. Then, the male connector 22 at the end of the second composite pipe 2 is inserted into the inside of the female connector 12. After insertion, the fixing teeth 23 will engage with the inside of the fixing marks 13. After the insertion is completed, the rubber sealing ring 4 is moved between the two blocking rings 3. Then, the inner sealing ring 52 is moved, and the inner wall of the moving block 53 is moved to the outer wall of the rubber sealing ring 4. Then, the external threaded sleeve 51 is fitted. Then, the handle 54 is held and the external threaded sleeve 51 is rotated. When rotating, the inner wall of the external threaded sleeve 51 will move the moving block 53 towards the center, so that it clamps the rubber sealing ring 4, and the rubber sealing ring 4 tightly wraps the pipe.

[0030] Furthermore, the sealing assembly 5 includes an external threaded sleeve 51, an inner sealing ring 52, multiple moving blocks 53, and a handle 54. The external threaded sleeve 51 is threadedly connected to the outer wall of the inner sealing ring 52, the inner sealing ring 52 is sleeved on the outer wall of the second composite pipe 2, the moving blocks 53 are slidably connected to the outer wall of the inner sealing ring 52, the inner wall of the external threaded sleeve 51 and the outer wall of the moving blocks 53 are inclined and parallel, and the handle 54 is fixedly connected to the other end of the inner sealing ring 52.

[0031] Specifically, by setting the movable block 53, when the external threaded sleeve 51 rotates, the movable block 53 will move towards the center, so that it clamps the connection between the first composite tube 1 and the second composite tube 2.

[0032] Furthermore, the first composite pipe 1 includes a first main pipe 11, a female connector 12, and a fixing groove 13. The female connector 12 is fixedly connected to one end of the first composite pipe 1, and the fixing groove 13 is formed on the inner wall of the female connector 12. The second composite pipe 2 includes a second main pipe 21, a male connector 22, and a fixing tooth 23. The male connector 22 is disposed at one end of the second main pipe 21, and the fixing tooth 23 is disposed on the inner wall of the male connector 22. The male connector 22 is inserted into the inner wall of the female connector 12, and the fixing tooth 23 is engaged with the inner wall of the fixing groove 13.

[0033] Specifically, by setting the fixing mark 13 and fixing tooth 23, the two pipes can be quickly connected after insertion without the need for heat fusion, thus improving connection efficiency.

[0034] Furthermore, the rubber sealing ring 4 is fitted onto the connection between the first composite pipe 1 and the second composite pipe 2, and the rubber sealing ring 4 is located between the two blocking rings 3.

[0035] Specifically, the blocking ring 3 can position the rubber sealing ring 4, prevent the rubber sealing ring 4 from shifting, and ensure that the sealing rubber ring is always in the sealing position.

[0036] Furthermore, the female connector 12 and the male connector 22 are in a flexible interference fit.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protective structure for a steel plastic composite pipe, comprising: The first composite pipe (1), the second composite pipe (2), the blocking ring (3), the rubber sealing ring (4) and the sealing assembly (5) are characterized in that the second composite pipe (2) is inserted into the inner wall of the first composite pipe (1); The blocking ring (3) is arranged on the outer wall of the first composite pipe (1) and the second composite pipe (2), and the rubber sealing ring (4) is sleeved on one end of the first composite pipe (1); The sealing assembly (5) is sleeved on the outer wall of the rubber sealing ring (4).

2. The protective structure for a steel-plastic composite pipe according to claim 1, characterized in that: The sealing assembly (5) includes an outer threaded sleeve (51), an inner sealing ring (52), a plurality of moving blocks (53) and a handle (54), the outer threaded sleeve (51) is threadedly connected to the outer wall of the inner sealing ring (52), the inner sealing ring (52) is sleeved on the outer wall of the second composite pipe (2), the moving blocks (53) are slidingly connected to the outer wall of the inner sealing ring (52), the inner wall of the outer threaded sleeve (51) and the outer wall of the moving blocks (53) are arranged in an inclined parallel manner, and the handle (54) is fixedly connected to the other end of the inner sealing ring (52).

3. The protective structure for a steel-plastic composite pipe according to claim 1, characterized in that: The first composite pipe (1) includes a first main pipe (11), a female connector (12) and a fixed mark (13), the female connector (12) is fixedly connected to one end of the first composite pipe (1), and the fixed mark (13) is arranged on the inner wall of the female connector (12).

4. The protective structure for a steel-plastic composite pipe according to claim 1, characterized in that: The second composite pipe (2) includes a second main pipe (21), a male connector (22) and a fixed tooth (23), the male connector (22) is arranged on one end of the second main pipe (21), the fixed tooth (23) is arranged on the inner wall of the male connector (22), the male connector (22) is inserted into the inner wall of the female connector (12), and the fixed tooth (23) is clamped on the inner wall of the fixed mark (13).

5. The protective structure for a steel-plastic composite pipe according to claim 1, characterized in that: The rubber sealing ring (4) is sleeved on the connection between the first composite pipe (1) and the second composite pipe (2), and the rubber sealing ring (4) is located between the two blocking rings (3).

6. The protective structure for a steel-plastic composite pipe according to claim 3, characterized in that: The female connector (12) and the male connector (22) are in elastic interference fit.

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