Steel lining polytetrafluoroethylene concentric reducing composite pipe structure

Abstract

The utility model discloses a steel lining polytetrafluoroethylene concentric reducing composite pipe structure, and particularly relates to the field of composite pipes, the steel lining polytetrafluoroethylene concentric reducing composite pipe structure comprises a connecting structure, a thick pipe and a thin pipe are arranged at the two ends of the connecting structure, the connecting structure comprises a lantern ring, a connecting ring, an elastic sleeve and a fixing sleeve, and the elastic sleeve is located in the thick pipe; the surface of the connecting ring is fixedly arranged on the inner wall of the thick pipe; a lantern ring is arranged on the surface of the thick pipe, and a threaded rod is arranged on the lantern ring in a threaded mode. The threaded rod is rotated to drive the elastic sleeve to move, so that the elastic sleeve can be attached to the surface of the thin pipe and used for connecting the thin pipe and the thick pipe, the thick pipe and the elastic sleeve are in sealed connection through the sealing structure, the sealing performance in the using process is guaranteed, and the threaded rod, the connecting ring and the elastic sleeve are matched with one another, so that the sealing effect is improved. The connecting structure is convenient for connecting the thick pipe with the thin pipes with different diameters, so that the use in different scenes is facilitated; after the thick pipe and the thin pipe are connected through the elastic sleeve, further reinforcement is achieved through the waterproof adhesive tape and the fixing sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of composite pipes, in particular to a steel-lined polytetrafluoroethylene concentric composite pipe structure of varying diameters. Background Art

[0002] Steel lined PTFE concentric reducer is based on ordinary carbon steel pipe, lined with polytetrafluoroethylene with excellent chemical stability, and is formed by cold drawing, compounding or rotational molding. It has both the mechanical properties of steel and the chemical properties of polytetrafluoroethylene, and is closely related to all aspects of production and life.

[0003] When installing the steel-lined PTFE concentric reducer, it is difficult to connect the two pipes due to the inconsistency of the pipe diameters. A composite connection structure is usually required. When the pipe is compositely connected with different pipes, the range of compensation connection required is also different. This requires the composite connection structure to be more applicable. However, there are currently few structures that meet this requirement, which brings inconvenience to the use process.

[0004] Therefore, we made improvements on this and proposed a steel-lined polytetrafluoroethylene concentric and reducing-diameter composite pipe structure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a steel-lined polyfluoroethylene concentric reducing composite pipe structure, comprising a connecting structure, wherein two ends of the connecting structure are respectively connected to a thick pipe and a thin pipe, wherein the connecting structure comprises a sleeve ring, a connecting ring, an elastic sleeve and a fixed sleeve, wherein the elastic sleeves are two and the two elastic sleeves are arc-shaped structures, and the two elastic sleeves are both located inside the thick pipe; the surface of the elastic sleeve is elastically sealed and connected to the connecting ring, and the surface of the connecting ring is fixedly arranged on the inner wall of the thick pipe;

[0007] A ring is fixedly arranged on the surface of the thick tube, a screw is threadedly arranged on the ring, and the bottom end of the screw is arranged on the surface of the elastic sleeve; the surface of the elastic sleeve is wrapped with waterproof tape, two fixing sleeves are installed on the surface of the waterproof tape, and the two fixing sleeves are fixed by fastening bolts.

[0008] As a preferred technical solution of the utility model, a mounting plate is fixedly provided on the surface of the elastic sleeve, one end of the screw is rotatably connected to the mounting plate, and the other end of the screw rotates through and extends to the outside of the ring.

[0009] As a preferred technical solution of the utility model, multiple springs 1 are connected between the inner wall of the ring and the outer surface of the elastic sleeve; the ends of the connecting ring and the ring that are connected to each other extend in a direction approaching each other, and elastic sealing sleeves are fixedly provided at the extended ends of both, and multiple springs 2 are connected inside the elastic sealing sleeve.

[0010] As a preferred technical solution of the utility model, the fixing sleeve is an arc-shaped structure, and both ends of the fixing sleeve extend to both sides to form connecting plates, and threaded holes are provided on the connecting plates.

[0011] As a preferred technical solution of the utility model, there are two connecting plates located on the same side, and the fastening bolts pass through the threaded holes and cooperate with the nuts to fasten the two fixing sleeves.

[0012] As a preferred technical solution of the utility model, sealing strips are provided at the contact ends of the fixing sleeve and the waterproof tape.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the elastic sleeve is driven to move by rotating the screw so that the elastic sleeve can fit on the surface of the thin tube and is used to connect the thin tube and the thick tube. The thick tube and the elastic sleeve are sealed and connected by a sealing structure to ensure the sealing during use. The screw, the connecting ring and the elastic sleeve cooperate with each other so that the connecting structure is convenient for connecting the thick tube with thin tubes of different diameters, thereby facilitating use in different scenarios. After the thick tube and the thin tube are connected by the elastic sleeve, they are further reinforced by waterproof tape and a fixing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a steel-lined polytetrafluoroethylene concentric and reduced-diameter composite pipe structure of the utility model;

[0017] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 This is a partial structural diagram of a steel-lined polytetrafluoroethylene concentric and reduced-diameter composite pipe structure of the utility model. Figure 1 ;

[0019] Figure 4 This is a partial structural diagram of a steel-lined polytetrafluoroethylene concentric and reduced-diameter composite pipe structure of the utility model. Figure 2 .

[0020] In the figure: 1. thick tube; 2. thin tube; 3. collar; 4. connecting ring; 5. elastic sleeve; 6. screw; 7. spring 1; 8. spring 2; 9. mounting plate; 10. fixing sleeve; 11. connecting plate; 12. fastening bolts. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figures 1 to 4 As shown, the utility model is a steel-lined polytetrafluoroethylene concentric and different-diameter composite pipe structure, including a connecting structure, wherein the two ends of the connecting structure are respectively connected to a thick pipe 1 and a thin pipe 2, and the thick pipe 1 and the thin pipe 2 are connected together through the connecting structure to meet the actual use requirements. The connecting structure includes a collar 3, a connecting ring 4, an elastic sleeve 5 and a fixed sleeve 10, wherein there are two elastic sleeves 5 and the two elastic sleeves 5 are arc-shaped structures, and the two elastic sleeves 5 are both located inside the thick pipe 1; the surface of the elastic sleeve 5 is elastically sealed and connected to the connecting ring 4, and the surface of the connecting ring 4 is fixedly arranged on the inner wall of the thick pipe 1. The distance between the elastic sleeve 5 and the connecting ring 4 is adjustable, the elastic sleeve 5 is attached to the surface of the thin pipe 2, and the connecting ring 4 is installed on the surface of the thick pipe 1. The thick pipe 1 and the thin pipe 2 can be connected through the connecting ring 4 and the elastic sleeve 5, and the adjustable distance allows the two to adapt to pipes of different diameters, thereby enhancing applicability.

[0023] A collar 3 is fixedly arranged on the surface of the thick tube 1, and a screw 6 is threadedly arranged on the collar 3, and the bottom end of the screw 6 is arranged on the surface of the elastic sleeve 5; by rotating the screw 6, the distance between the elastic sleeve 5 and the connecting ring 4 can be adjusted, so that the elastic sleeve 5 fits on the surface of the thin tube 2. The surface of the elastic sleeve 5 is wrapped with a waterproof tape, and the sealing performance can be enhanced by the waterproof tape. Two fixing sleeves 10 are installed on the surface of the waterproof tape, and the two fixing sleeves 10 are fixed by fastening bolts 12. The fixing sleeve 10 can enhance the tightness of the connection between the thick tube 1 and the thin tube 2.

[0024] The surface of the elastic sleeve 5 is fixedly provided with a mounting plate 9, one end of the screw rod 6 is rotatably connected to the mounting plate 9, and the other end of the screw rod 6 is rotatably penetrated and extended to the outside of the collar 3. The mounting plate 9 is provided to facilitate the rotation of the screw rod 6, and the mounting plate 9 is pushed to move by the screwing of the screw rod 6, and the elastic sleeve 5 is driven to move by the mounting plate 9, and the size of the mounting plate 9 is smaller than the size of the elastic sleeve 5, so as to prevent the setting of the mounting plate 9 from affecting the movement and extension of the elastic sleeve 5.

[0025] A plurality of springs 1 7 are connected between the inner wall of the collar 3 and the outer surface of the elastic sleeve 5; the ends of the connecting ring 4 and the collar 3 that are connected to each other extend in the direction of approaching each other, and elastic sealing sleeves are fixedly provided at the extended ends of both, and a plurality of springs 2 8 are connected inside the elastic sealing sleeve, and the springs 1 7 and 2 8 are in a compressed state, so they will generate elastic force to push the elastic sleeve 5, so that the elastic sleeve 5 fits on the surface of the capillary 2, the elastic sealing sleeve can play a sealing role, and after the capillary 2 and the thick tube 1 are connected, the exposed position of the capillary 2 can be wrapped with waterproof tape.

[0026] The fixing sleeve 10 is an arc-shaped structure, and the two ends of the fixing sleeve 10 extend to both sides to form a connecting plate 11, and a threaded hole is opened on the connecting plate 11. There are two connecting plates 11 on the same side, and the fastening bolts 12 pass through the threaded holes and cooperate with the nuts to fasten the two fixing sleeves 10. After the waterproof tape wraps the thin tube 2 and the thick tube 1, the fixing sleeve 10 can enhance the tightness of the connection between the thin tube 2 and the thick tube 1.

[0027] The contact ends of the fixing sleeve 10 and the waterproof tape are both provided with sealing strips, and the sealing properties can be enhanced by the sealing strips.

[0028] During operation, the elastic sleeve 5 is driven to move by rotating the screw 6 so that the elastic sleeve 5 can fit on the surface of the thin tube 2 to connect the thin tube 2 and the thick tube 1, and the thick tube 1 and the elastic sleeve 5 are sealed by a sealing structure to ensure the sealing during use. The mutual cooperation between the screw 6, the connecting ring 4, and the elastic sleeve 5 makes the connection structure convenient for connecting the thick tube 1 with the thin tubes 2 of different diameters, thereby facilitating use in different scenarios; after the thick tube 1 and the thin tube 2 are connected by the elastic sleeve 5, they are further reinforced by waterproof tape and the fixing sleeve 10.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steel-lined polytetrafluoroethylene concentric reducing composite pipe structure, characterized in that: The invention comprises a connection structure, wherein two ends of the connection structure are respectively connected to a thick tube (1) and a thin tube (2), and the connection structure comprises a sleeve ring (3), a connecting ring (4), an elastic sleeve (5) and a fixed sleeve (10), wherein there are two elastic sleeves (5) and the two elastic sleeves (5) are arc-shaped structures, and the two elastic sleeves (5) are both located inside the thick tube (1); the surface of the elastic sleeve (5) is elastically sealed to the connecting ring (4), and the surface of the connecting ring (4) is fixedly arranged on the inner wall of the thick tube (1); A collar (3) is fixedly arranged on the surface of the thick tube (1), a screw (6) is threadedly arranged on the collar (3), and the bottom end of the screw (6) is arranged on the surface of the elastic sleeve (5); the surface of the elastic sleeve (5) is wrapped with a waterproof adhesive tape, and two fixing sleeves (10) are installed on the surface of the waterproof adhesive tape, and the two fixing sleeves (10) are fixed by fastening bolts (12).

2. A steel-lined polytetrafluoroethylene concentric reducing composite pipe structure according to claim 1, characterized in that: A mounting plate (9) is fixedly arranged on the surface of the elastic sleeve (5), one end of the screw rod (6) is rotatably connected to the mounting plate (9), and the other end of the screw rod (6) is rotatably penetrated and extended to the outside of the collar (3).

3. The steel-lined polytetrafluoroethylene concentric reducing composite pipe structure according to claim 1, characterized in that: A plurality of springs (7) are connected between the inner wall of the collar (3) and the outer surface of the elastic sleeve (5); the ends of the connecting ring (4) and the collar (3) connected to each other extend in a direction approaching each other, and elastic sealing sleeves are fixedly provided at the extended ends of both, and a plurality of springs (8) are connected inside the elastic sealing sleeves.

4. The steel-lined polytetrafluoroethylene concentric and reducing composite pipe structure according to claim 1, characterized in that: The fixing sleeve (10) is an arc-shaped structure, and two ends of the fixing sleeve (10) extend to both sides to form a connecting plate (11), and a threaded hole is provided on the connecting plate (11).

5. A steel-lined polytetrafluoroethylene concentric reducing composite pipe structure according to claim 4, characterized in that: There are two connecting plates (11) located on the same side, and the fastening bolts (12) pass through the threaded holes and cooperate with the nuts to fasten the two fixing sleeves (10).

6. The steel-lined polytetrafluoroethylene concentric reducing composite pipe structure according to claim 1, characterized in that: The contact ends of the fixing sleeve (10) and the waterproof adhesive tape are both provided with sealing adhesive strips.

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