Steel-plastic composite pipe with sealing connection structure

Abstract

The utility model relates to the field of composite pipes, and discloses a steel-plastic composite pipe with a sealing connection structure, which comprises a round pipe I, a threaded pipe fixedly connected to the right side of the round pipe I, a spring fixedly connected to the right side of the round pipe I, a round pipe II fixedly connected to the inner wall of the round pipe I, a sealing block fixedly connected to the right side of the spring, and a sealing ring fixedly connected to the right side of the sealing block. And the right side of the threaded pipe is in threaded connection with a third round pipe, the inner wall of the third round pipe is rotationally connected with a fourth round pipe, the right side of the first round pipe is fixedly connected with a threaded pipe, and the right side of the first round pipe is fixedly connected with a spring. According to the utility model, the two sides of the sealing block are attached through the piston motion of the sealing block, and meanwhile, the sealing block extrudes the air in the circular pipe, and molecular gaps in the air are reduced to form interaction force, so that the problems of poor sealing property and poor sealing property caused by abrasion due to mutual friction during connection of the circular pipe are solved. And the piston movement is added, so that the sealing effect in the circular pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of composite pipes, in particular to a steel-plastic composite pipe with a sealed connection structure. Background Art

[0002] Steel-plastic composite pipe is a new type of composite pipe material. It has good rigidity and strength, smooth inner wall and good corrosion resistance. It is widely used in our lives. It is often used for drinking water, petroleum, chemical industry, natural gas transportation, etc.

[0003] After extensive searching, we found that in the prior art, due to the bolt connection of general flanges, frequent disassembly for repair and maintenance may cause friction between the bolts, resulting in wear and loosening, leading to poor sealing. In addition, when the pipeline is working, the internal material conveyed may produce small vibrations due to the need to ensure the conveying speed, which may affect the service life of the pipeline for a long time. For this reason, we proposed a steel-plastic composite pipe with a sealed connection structure. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a composite pipe with a sealed connection structure, aiming to improve the problem of poor sealing caused by the sealing and impact force of the connection structure in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steel-plastic composite pipe with a sealed connection structure, comprising a round tube one, a threaded tube fixedly connected to the right side of the round tube one, a spring one fixedly connected to the right side of the round tube one, a round tube two fixedly connected to the inner wall of the round tube one, a sealing block fixedly connected to the right side of the spring, a round tube three threadedly connected to the right side of the threaded tube, and a round tube four rotatably connected to the inner wall of the round tube three.

[0006] As a further description of the above technical solution: a connecting block 1 is fixedly connected to the front surface of the threaded tube, a spring ring is fixedly connected to the front surface of the connecting block, and a bottom plate 1 is fixedly connected to the front surface of the spring ring.

[0007] As a further description of the above technical solution: a bolt 1 is arranged in the middle of the connecting block, a piston rod 1 is hinged on the inner side of the connecting block, a piston 1 is fixedly connected to the right side of the piston rod 1, and a piston tube is connected to the outer surface of the piston 1.

[0008] As a further description of the above technical solution: the right side of the piston one is fixedly connected to a spring two, the piston one is provided with multiple groups, and the multiple groups of pistons one are symmetrically arranged with the center line of the piston tube as the symmetry axis, the right side of the spring is fixedly connected to the left side of another piston one, and the right side of the other piston one is fixedly connected to a piston rod two.

[0009] As a further description of the above technical solution: the right side of the second piston rod is hinged with a connecting block through a second bolt.

[0010] As a further description of the above technical solution: the front surface of the connecting block is fixedly connected to a bottom plate, and a bolt three is arranged in the middle of the bottom plate.

[0011] As a further description of the above technical solution: the sealing block piston is connected to the inner wall of the threaded tube and the outer wall of the circular tube.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, the threaded tube is threadedly connected with the right round tube three so that when the round tube four squeezes the sealing block, the reaction force of the spring one squeezes the sealing block piston to make the two sides of the sealing block fit together. At the same time, the sealing block also squeezes the air in the round tube one and the round tube four, and the molecular gaps in the air become smaller to form an interaction force, which solves the problem of poor sealing caused by mutual friction and wear when the round tubes are connected, thereby improving the sealing effect in the round tube.

[0014] 2. In the utility model, piston rod 1 pushes piston 1 to the right, so that piston 1 squeezes spring 2 to the right in the piston tube, and the rebound force of spring 2 squeezes the air in the piston tube at the same time, so that the air in the tube generates a mutual force, thereby solving the vibration caused by conveying materials when the pipeline is working for a long time, achieving a buffering effect, and thus increasing the service life of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of an overall device of a steel-plastic composite pipe with a sealed connection structure proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the three-dimensional structure of a piston tube of a steel-plastic composite tube with a sealing connection structure proposed by the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of a round pipe 1, a threaded pipe, a round pipe 2, and a sealing block of a steel-plastic composite pipe with a sealed connection structure proposed by the utility model;

[0018] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of round tube 4 and round tube 3 of a steel-plastic composite pipe with a sealed connection structure proposed by the utility model;

[0019] Legend: 1. Sealing block; 2. Threaded tube; 3. Round tube three; 4. Connecting block one; 5. Spring ring; 6. Bottom plate one; 7. Piston tube; 8. Piston rod one; 9. Spring one; 10. Bolt one; 11. Spring two; 12. Piston rod two; 19. Piston one; 14. Bolt two; 15. Connecting block two; 16. Bottom plate two; 17. Bolt three; 18. Round tube four; 19. Piston one; 20. Round tube two; 21. Round tube one. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 , Figure 3 , Figure 4 The utility model provides an embodiment: a steel-plastic composite pipe with a sealed connection structure, including a round tube 21, a threaded tube 2 is fixedly connected to the right side of the round tube 21, a spring 9 is fixedly connected to the right side of the round tube 21, a round tube 20 is fixedly connected to the inner wall of the round tube 21, a sealing block 1 is fixedly connected to the right side of the spring 9, a round tube 4 18 is connected to the round tube 4 18 to produce a sealing effect, a round tube 3 3 is threadedly connected to the right side of the threaded tube 2, the threaded tube 2 is used to more conveniently connect to the round tube 3 3, and the inner wall of the round tube 3 3 is rotatably connected to the round tube 4 18.

[0022] Reference Figure 3 , Figure 4 A threaded tube 2 is fixedly connected to the right side of the round tube 21, a spring 9 is fixedly connected to the right side of the round tube 21, a round tube 20 is fixedly connected to the inner wall of the round tube 21, and the round tube 20 is used to connect with the inner wall of the round tube 4 18. A sealing block 1 is fixedly connected to the right side of the spring 9, and the movable sealing block 1 can be supported by the characteristics of the spring 9.

[0023] Reference Figure 2The front surface of the connecting block 4 is fixedly connected with a spring ring 5, and the spring ring 5 can be used for small movements up, down, left, and right. The front surface of the spring ring 5 is fixedly connected with a bottom plate 6. A bolt 10 is provided in the middle of the connecting block 4. A piston rod 8 is hinged on the inner side of the connecting block 4. The bolt 10 provided inside the connecting block 4 can better move the piston rod 8 through the hinge. The right side of the piston rod 8 is fixedly connected with a piston 19. The outer surface of the piston 19 is connected with a piston tube 7. The piston 19 can be used to squeeze the air in the piston tube 7 to achieve a buffering effect. The right side of the piston 19 is fixedly connected with a spring 2 11. The piston 1 9 is provided with multiple groups, and the multiple groups of pistons 19 are symmetrically arranged with the center line of the piston tube 7 as the symmetry axis. The right side of the spring 2 11 is fixedly connected to the left side of another piston 19. The spring 2 11 supports the two pistons 19 and assists the two pistons 19 to reset through the spring 2 11. The right side of the other piston 19 is fixedly connected with a piston rod 2 12. The right side of the piston rod 2 12 is hinged with a connecting block 2 15 through a bolt 2 14. The front surface of the connecting block 2 15 is fixedly connected with a bottom plate 2 16. A bolt 3 17 is provided in the middle of the bottom plate 2 16. The bolt 3 17 can be used to install the bottom plate on the wall.

[0024] Working principle: First check whether the various accessories of the device can be used normally. If they can be used normally, thread the round tube three 3 to the right side of the threaded tube 2. When the round tube three 3 rotates to the left, the round tube four 18 will contact the sealing block 1. When the round tube four 18 contacts the sealing block 1, the sealing block 1 will be pressurized to squeeze the spring 1 9 to the right. The spring 1 9 is squeezed to generate a reaction force to make the sealing block 1 squeeze the round tube four 18, thereby achieving a sealing effect.

[0025] Then, the bottom plate 16 and the bottom plate 2 16 are installed on the wall by bolts 3 17. When the round tube is subjected to impact force, the piston rod 18 hinged by bolts on the connection block on the front surface of the threaded tube 2 pushes the piston 19 fixedly connected on the right side to the right, so that the piston 19 squeezes the spring 2 11 in the piston tube 7. The spring 2 11 is pressed to squeeze another piston 19 to the right. Because the other piston 19 is fixedly connected to the piston rod 2 12 on the right side, and the piston rod 2 12 is hinged to the connection block by bolts 2 14, the reaction force of the spring 2 11 when squeezing the other piston 19 returns to the piston 19, thereby achieving a buffering effect.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel-plastic composite pipe with a sealed connection structure, comprising a round pipe (21), characterized in that: The right side of the circular tube 1 (21) is fixedly connected to a threaded tube (2), the right side of the circular tube 1 (21) is fixedly connected to a spring 1 (9), the inner wall of the circular tube 1 (21) is fixedly connected to a circular tube 2 (20), the right side of the spring 1 (9) is fixedly connected to a sealing block (1), the right side of the threaded tube (2) is threadedly connected to a circular tube 3 (3), and the inner wall of the circular tube 3 (3) is rotatably connected to a circular tube 4 (18).

2. The steel-plastic composite pipe with a sealed connection structure according to claim 1, characterized in that: The front surface of the threaded tube (2) is fixedly connected to a connecting block (4), the front surface of the connecting block (4) is fixedly connected to a spring ring (5), and the front surface of the spring ring (5) is fixedly connected to a bottom plate (6).

3. The steel-plastic composite pipe with a sealed connection structure according to claim 2, characterized in that: A bolt (10) is provided in the middle of the connecting block (4), a piston rod (8) is hingedly connected to the inner side of the connecting block (4), a piston (19) is fixedly connected to the right side of the piston rod (8), and a piston tube (7) is connected to the outer surface of the piston (19).

4. The steel-plastic composite pipe with a sealed connection structure according to claim 3, characterized in that: The right side of the piston one (19) is fixedly connected to a spring two (11), and the piston one (19) is provided with multiple groups, and the multiple groups of pistons one (19) are symmetrically arranged with the center line of the piston tube (7) as the symmetry axis. The right side of the spring two (11) is fixedly connected to the left side of another piston one (19), and the right side of the other piston one (19) is fixedly connected to a piston rod two (12).

5. The steel-plastic composite pipe with a sealed connection structure according to claim 4, characterized in that: The right side of the piston rod 2 (12) is hingedly connected to a connecting block 2 (15) via a bolt 2 (14).

6. The steel-plastic composite pipe with a sealed connection structure according to claim 5, characterized in that: The front surface of the second connecting block (15) is fixedly connected to the second bottom plate (16), and a third bolt (17) is arranged in the middle of the second bottom plate (16).

7. The steel-plastic composite pipe with a sealed connection structure according to claim 1, characterized in that: The piston of the sealing block (1) is connected to the inner wall of the threaded tube (2) and the outer wall of the second circular tube (20).

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