Flexible composite high pressure transfer line internal expansion joint installation apparatus

CN224657914UActive Publication Date: 2026-08-21JIANGSU YANSHENG COMPOSITE MATERIALS CO LTD
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Patent Information

Application Number
CN202522069581.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-08-21
Estimated Expiration
2035-09-26

AI Technical Summary

Technical Problem

[0003]当下的柔性复合高压输送管的接口安装通常是由人工手动安装的,安装过程较为复杂,从而会浪费大量的现场施工时间,降低工作效率

Benefits of technology

[0018]1. The flexible composite high-pressure conveying pipe internal expansion joint installation device proposed in this utility model firstly places the outer pipe on the outer end of the inner pipe, and one end of the inner pipe is threadedly connected to the limiting sleeve. Then, the connected limiting sleeve, inner pipe, and outer pipe are placed on one side of the gasket. Next, the pipe is placed on the outer end of the ball, and the other end of the pipe is fixed by the cooperation of the upper and lower clamps. The extension of the cylinder completely inserts one end of the pipe into the gap between the inner and outer pipes. Then, a pair of sleeves are inserted into the slot. Then, the cylinder retracts, causing the ball to pass through the inside of the inner pipe, thereby causing the inner pipe to expand from the inside out. With the design of the helical teeth, the pipe is connected and fixed to the inner and outer pipes. The design of the sleeves can support the limiting sleeve and facilitate the retraction of the output rod. The above structural design can complete the connection and fixation of the pipe and the joint pipe more quickly, improving work efficiency.

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Abstract

The utility model relates to flexible composite high pressure conveying pipe joint installation technical field discloses the inner expansion type joint mounting equipment of flexible composite high pressure conveying pipe, including air cylinder, inner pipe and outer pipe, the output end of air cylinder designs output rod, the middle part fixed setting of output rod has gasket, the side of gasket is equipped with the limit sleeve, the inner pipe is screwed in one end of limit sleeve, the outer pipe is equipped in the outer end of inner pipe. In the utility model, first, the outer pipe is equipped in the outer end of inner pipe, and one end of inner pipe is screwed with the limit sleeve, then the limit sleeve, inner pipe and outer pipe after connecting are equipped on one side of gasket, then the pipe material is sleeved on the outer end of sphere, and the other end of pipe material is fixed through the cooperation of upper and lower clamps, one end of pipe material is completely inserted into the gap of inner pipe and outer pipe through the extension of air cylinder, and then a pair of sleeve pieces are inserted into the slot.
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Description

Technical Field

[0001] This utility model relates to the field of flexible composite high-pressure conveying pipe joint installation technology, and in particular to the internal expansion joint installation equipment for flexible composite high-pressure conveying pipes. Background Technology

[0002] In industries such as petroleum, chemical, and natural gas, flexible composite high-pressure transmission pipes are widely used for high-pressure fluid transportation due to their advantages such as corrosion resistance, wear resistance, and good flexibility. With the development of related industries, the requirements for the efficiency and reliability of pipeline installation are constantly increasing, leading to the development of specialized joint installation equipment.

[0003] Currently, the interface installation of flexible composite high-pressure transmission pipes is usually done manually, which is a relatively complicated process that wastes a lot of on-site construction time and reduces work efficiency.

[0004] Therefore, those skilled in the art have provided an internal expansion joint installation device for flexible composite high-pressure transmission pipes to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an internal expansion joint installation device for flexible composite high-pressure conveying pipes. The cylinder contracts, causing a ball to pass through the interior of the inner pipe, thus expanding the inner pipe from the inside out. Combined with the helical tooth design, this connects and fixes the pipe to both the inner and outer pipes. The sleeve design supports the limiting sleeve, facilitating the retraction of the output rod. This structural design allows for faster connection and fixation of the pipe and joint, improving work efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An internal expansion joint installation device for a flexible composite high-pressure conveying pipe includes a cylinder, an inner pipe, and an outer pipe. The output end of the cylinder is designed with an output rod, and a gasket is fixedly installed in the middle of the output rod. A limiting sleeve is fitted on one side of the gasket. The inner pipe is threadedly installed on one end of the limiting sleeve. The outer pipe is fitted on the outer end of the inner pipe. Both the inner side of the outer pipe and the outer side of the inner pipe are designed with helical teeth. A pair of sleeves are inserted between the cylinder and the limiting sleeve. A ball is fitted on the outer end of the output rod.

[0008] The above technical solution involves first fitting the outer tube onto the outer end of the inner tube, with one end of the inner tube threadedly connected to the limiting sleeve. Then, the connected limiting sleeve, inner tube, and outer tube are fitted onto one side of the gasket. Next, the pipe is fitted onto the outer end of the ball, and the other end of the pipe is fixed by the cooperation of upper and lower clamps. The extension of the cylinder fully inserts one end of the pipe into the gap between the inner and outer tubes. Then, a pair of sleeves are inserted into the slot. The cylinder then retracts, causing the ball to pass through the interior of the inner tube, thus expanding the inner tube from the inside out. The design of the helical teeth connects and fixes the pipe to the inner and outer tubes. The sleeve design supports the limiting sleeve, facilitating the retraction of the output rod. This structural design allows for faster connection and fixation of the pipe and connector, improving work efficiency.

[0009] Furthermore, connecting rods are fixedly installed on both sides of the cylinder, a fixed frame is fixedly installed at one end of the two connecting rods, a lower clamping plate is fixedly installed at the bottom of the fixed frame, a threaded rod is threadedly installed at the top center of the fixed frame, and an upper clamping plate is rotatably installed at the bottom end of the threaded rod.

[0010] With the above technical solution, connecting rods are fixedly installed on both sides of the cylinder, and a fixed frame is fixedly installed at one end of the two connecting rods. A lower clamping plate is fixedly installed at the bottom of the fixed frame. The upper clamping plate can be moved by rotating the threaded rod at the top of the fixed frame, which facilitates clamping and fixing of the pipe.

[0011] Furthermore, one end of the output rod is designed with threads, and a limiting bolt is threaded onto the outer end of the output rod;

[0012] The above technical solution involves designing a thread at one end of the output rod, and a limiting bolt is fitted onto the threaded outer end of the output rod to facilitate limiting the ball.

[0013] Furthermore, a slot is provided on one side of the cylinder, and the thickness of the slot is the same as the thickness of the sleeve.

[0014] The above technical solution provides a slot on one side of the cylinder, and the thickness of the slot is the same as the thickness of the sleeve, which makes it convenient to insert the sleeve into one side of the cylinder.

[0015] Furthermore, both one side of the limiting sleeve and the outer end of the inner tube are designed with threads, and the inner diameter of one end of the limiting sleeve is larger than the diameter of the gasket.

[0016] With the above technical solution, threads are designed on one side of the limiting sleeve and the outer end of the inner tube. The inner diameter of one end of the limiting sleeve is larger than the diameter of the gasket, which facilitates the insertion of the sleeve.

[0017] This utility model has the following beneficial effects:

[0018] 1. The flexible composite high-pressure conveying pipe internal expansion joint installation device proposed in this utility model firstly places the outer pipe on the outer end of the inner pipe, and one end of the inner pipe is threadedly connected to the limiting sleeve. Then, the connected limiting sleeve, inner pipe, and outer pipe are placed on one side of the gasket. Next, the pipe is placed on the outer end of the ball, and the other end of the pipe is fixed by the cooperation of the upper and lower clamps. The extension of the cylinder completely inserts one end of the pipe into the gap between the inner and outer pipes. Then, a pair of sleeves are inserted into the slot. Then, the cylinder retracts, causing the ball to pass through the inside of the inner pipe, thereby causing the inner pipe to expand from the inside out. With the design of the helical teeth, the pipe is connected and fixed to the inner and outer pipes. The design of the sleeves can support the limiting sleeve and facilitate the retraction of the output rod. The above structural design can complete the connection and fixation of the pipe and the joint pipe more quickly, improving work efficiency. Attached Figure Description

[0019] Figure 1 This is an isometric view of the internal expansion joint installation device for the flexible composite high-pressure conveying pipe proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the internal expansion joint installation device for the flexible composite high-pressure conveying pipe proposed in this utility model.

[0021] Figure 3 This is a cross-sectional view of the internal expansion joint installation device for the flexible composite high-pressure conveying pipe proposed in this utility model.

[0022] Figure 4 This is a side view of the internal expansion joint installation device for the flexible composite high-pressure conveying pipe proposed in this utility model.

[0023] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0024] Legend:

[0025] 1. Cylinder; 2. Connecting rod; 3. Fixing frame; 4. Threaded rod; 5. Upper clamping plate; 6. Lower clamping plate; 7. Output rod; 8. Washer; 9. Ball; 10. Limiting bolt; 11. Inner connecting pipe; 12. Outer connecting pipe; 13. Sleeve; 14. Limiting sleeve; 15. Helical tooth; 16. Slot. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1-5 This utility model provides an embodiment of an internal expansion joint installation device for a flexible composite high-pressure conveying pipe, comprising a cylinder 1, an inner pipe 11, and an outer pipe 12. The output end of the cylinder 1 is designed with an output rod 7, and a gasket 8 is fixedly installed in the middle of the output rod 7. A limiting sleeve 14 is fitted onto one side of the gasket 8. The inner pipe 11 is threaded onto one end of the limiting sleeve 14, and the outer pipe 12 is fitted onto the outer end of the inner pipe 11. Both the inner side of the outer pipe 12 and the outer side of the inner pipe 11 are designed with helical teeth 15. A pair of sleeves 13 are inserted between the cylinder 1 and the limiting sleeve 14. A ball 9 is fitted onto the outer end of the output rod 7. First, the outer pipe 12 is fitted onto the outer end of the inner pipe 11, and one end of the inner pipe 11 is threadedly connected to the limiting sleeve 14. Then, the connected limiting sleeve... 14. The inner tube 11 and outer tube 12 are fitted onto one side of the gasket 8, and then the tube is fitted onto the outer end of the ball 9. The other end of the tube is fixed by the cooperation of the upper and lower clamps 6. The extension of the cylinder 1 completely inserts one end of the tube into the gap between the inner tube 11 and the outer tube 12. Then, a pair of sleeves 13 are inserted into the slot 16. Then, the cylinder 1 retracts, causing the ball 9 to pass through the inside of the inner tube 11, thereby causing the inner tube 11 to expand from the inside out. With the design of the helical teeth 15, the tube is connected and fixed to the inner tube 11 and the outer tube 12. The design of the sleeves 13 can support the limiting sleeve 14, which facilitates the retraction of the output rod 7. The above structural design can complete the connection and fixation of the tube and the connector tube more quickly, improving work efficiency.

[0028] Connecting rods 2 are fixedly installed on both sides of cylinder 1. A fixing frame 3 is fixedly installed at one end of each connecting rod 2. A lower clamping plate 6 is fixedly installed at the bottom of the fixing frame 3. A threaded rod 4 is threadedly installed at the top center of the fixing frame 3. An upper clamping plate 5 is rotatably installed at the bottom end of the threaded rod 4. Connecting rods 2 are fixedly installed on both sides of cylinder 1. A fixing frame 3 is fixedly installed at one end of each connecting rod 2. A lower clamping plate 6 is fixedly installed at the bottom of the fixing frame 3. The upper clamping plate 5 can be moved by rotating the threaded rod 4 at the top of the fixing frame 3, which facilitates clamping and fixing the pipe. One end of the output rod 7 is designed with threads. A limit bolt 10 is threaded on the outer end of the output rod 7. One end of the output rod 7 is threaded, and the outer end of the output rod 7 is threaded with a limiting bolt 10 to facilitate the limiting of the ball 9. A slot 16 is provided on one side of the cylinder 1. The thickness of the slot 16 is the same as the thickness of the sleeve 13. The slot 16 is provided on one side of the cylinder 1. The thickness of the slot 16 is the same as the thickness of the sleeve 13 to facilitate the insertion of the sleeve 13 into one side of the cylinder 1. One side of the limiting sleeve 14 and the outer end of the inner tube 11 are both threaded. The inner diameter of one end of the limiting sleeve 14 is larger than the diameter of the gasket 8. The inner diameter of one end of the limiting sleeve 14 and the outer end of the inner tube 11 are both threaded. The inner diameter of one end of the limiting sleeve 14 is larger than the diameter of the gasket 8 to facilitate the insertion of the sleeve 13.

[0029] Working principle: First, the outer tube 12 is fitted onto the outer end of the inner tube 11, and one end of the inner tube 11 is threadedly connected to the limiting sleeve 14. Then, the connected limiting sleeve 14, inner tube 11, and outer tube 12 are fitted onto one side of the gasket 8. Next, the tube is fitted onto the outer end of the ball 9, and the other end of the tube is fixed by the cooperation of the upper and lower clamps 6. The extension of the cylinder 1 completely inserts one end of the tube into the gap between the inner tube 11 and the outer tube 12. Then, a pair of sleeves 13 are inserted into the slot 16. Then, the cylinder 1 retracts, causing the ball 9 to pass through the inside of the inner tube 11, thereby causing the inner tube 11 to expand from the inside out. With the design of the helical teeth 15, the tube is connected and fixed to the inner tube 11 and the outer tube 12. The design of the sleeves 13 can support the limiting sleeve 14, which facilitates the retraction of the output rod 7. The above structural design can complete the connection and fixation of the tube and the connector tube more quickly, improving work efficiency.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An internal expansion joint installation device for a flexible composite high-pressure conveying pipe, comprising a cylinder (1), an inner pipe (11), and an outer pipe (12), characterized in that: The cylinder (1) is designed with an output rod (7) at its output end. A gasket (8) is fixedly installed in the middle of the output rod (7). A limiting sleeve (14) is fitted on one side of the gasket (8). The inner tube (11) is threaded onto one end of the limiting sleeve (14). The outer tube (12) is fitted onto the outer end of the inner tube (11). The inner side of the outer tube (12) and the outer side of the inner tube (11) are both designed with helical teeth (15). A pair of sleeves (13) are inserted between the cylinder (1) and the limiting sleeve (14). A ball (9) is fitted onto the outer end of the output rod (7).

2. The internal expansion joint installation device for the flexible composite high-pressure transmission pipe according to claim 1, characterized in that: Connecting rods (2) are fixedly installed on both sides of the cylinder (1). A fixed frame (3) is fixedly installed at one end of the two connecting rods (2). A lower clamping plate (6) is fixedly installed at the bottom of the fixed frame (3). A threaded rod (4) is threadedly installed at the top middle of the fixed frame (3). An upper clamping plate (5) is rotatably installed at the bottom end of the threaded rod (4).

3. The internal expansion joint installation device for the flexible composite high-pressure transmission pipe according to claim 1, characterized in that: One end of the output rod (7) is designed with a thread, and the outer end of the output rod (7) is threaded with a limiting bolt (10).

4. The internal expansion joint installation device for the flexible composite high-pressure transmission pipe according to claim 1, characterized in that: A slot (16) is provided on one side of the cylinder (1), and the thickness of the slot (16) is the same as the thickness of the sleeve (13).

5. The internal expansion joint installation device for the flexible composite high-pressure transmission pipe according to claim 1, characterized in that: The limiting sleeve (14) and the outer end of the inner tube (11) are both designed with threads, and the inner diameter of one end of the limiting sleeve (14) is larger than the diameter of the gasket (8).