Double-wall corrugated pipe splicing device

Abstract

The utility model discloses a double-wall corrugated pipe splicing device, and relates to the technical field of double-wall corrugated pipes, the double-wall corrugated pipe splicing device comprises two connecting pipes and two fixing rings, the outer sides of the opposite end parts of the two connecting pipes are respectively sleeved with the fixing rings, the outer sides of the fixing rings are fixedly connected with limiting rings, positioning holes are formed in the limiting rings, fixing bolts are arranged in the positioning holes, and the limiting rings are fixedly connected with the fixing bolts. A threaded groove is formed in the bottom of the positioning hole, the threaded groove penetrates through one limiting ring and extends into the other limiting ring, the fixing bolt is in threaded connection with the interior of the threaded groove, a second compression spring is fixedly connected with the interior of the threaded groove, and a magnetic attraction block is fixedly connected with the end, close to the positioning hole, of the second compression spring. The connecting pipes of the two double-wall corrugated pipes are in butt joint, the fixing bolts are inserted into the positioning holes and then attracted by the magnetic attraction blocks, the second compression springs inside are compressed when the fixing bolts are twisted, and the two double-wall corrugated pipes can be fixed together conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of double-wall corrugated pipes, in particular to a double-wall corrugated pipe splicing device. Background Art

[0002] Double-wall corrugated pipe is a new type of pipe with an annular outer wall and a smooth inner wall. It was first successfully developed in Germany in the early 1980s. Double-wall corrugated pipe has the characteristics of strong resistance to external pressure, low engineering cost and long service life. It is mainly used in large-scale water transmission, water supply, drainage, sewage discharge, exhaust, subway ventilation, mine ventilation and farmland irrigation with working pressure below 0.6MPa. Double-arm corrugated pipe needs to be spliced ​​in actual use.

[0003] For example, a double-walled corrugated pipe splicing device with application number CN201921932950.2 includes a connecting pipe, a connecting sleeve, a butt pipe and a butt sleeve; one end of the connecting pipe is connected to the inner wall of one end of the connecting sleeve through a bearing, and one end of the butt pipe is connected to the inner wall of one end of the butt sleeve through a bearing; the connecting sleeve is provided with an annular connecting column, and an annular groove is provided on the end face of the butt pipe of the annular connecting column; the butt sleeve is provided with an annular sleeve column, and an annular boss is provided on the end face of the connecting pipe; the annular boss of the annular sleeve column is threadedly connected to the annular groove of the annular connecting column. The utility model connects the butt joints of the double-walled corrugated pipes, which saves time and effort, and is easy to operate. However, the double-walled corrugated pipe splicing device is provided with a bearing structure, which is complex in structure and high in cost. In addition, the use environment of the double-walled corrugated pipe splicing device is harsh, and the bearing is easily damaged.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a double-wall corrugated pipe splicing device is proposed. Utility Model Content

[0005] The utility model aims to provide a double-wall corrugated pipe splicing device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A double-wall corrugated pipe splicing device comprises two connecting pipes and two fixing rings. The two connecting pipes are arranged opposite to each other. Fixing rings are respectively sleeved on the outer sides of the opposite ends of the two connecting pipes. The outer sides of the fixing rings are fixedly connected to limiting rings. A positioning hole is provided inside the limiting rings, and a fixing bolt is provided in the positioning hole. A threaded groove is provided at the bottom of the positioning hole. The threaded groove passes through one of the limiting rings and extends into the other limiting ring, and the fixing bolt is threadedly connected to the inside of the threaded groove. A second compression spring is fixedly connected to the inside of the threaded groove, and a magnetic suction block is fixedly connected to one end of the second compression spring close to the positioning hole.

[0008] Preferably, the opposite ends of the two limiting rings extend axially and protrude from the ends of the fixing ring, and a plurality of first compression springs are fixedly connected circumferentially to the inner wall of the limiting ring protruding from the fixing ring portion, and a plurality of first compression springs are fixedly connected to one end away from the limiting ring respectively with a pressure block, and the plurality of pressure blocks are distributed in a circular ring shape, and the pressure blocks are arranged in an arc shape toward the inner wall of the connecting tube.

[0009] Preferably, a rubber pad is fixedly connected to the inner side wall of the pressing block, and the rubber pad cooperates with the connecting pipe.

[0010] Preferably, elastic pull ropes are connected between the pressing blocks arranged in a circular shape.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model connects two double-walled corrugated pipes by setting a connecting pipe, a fixing ring, a limiting ring, a fixing bolt, a positioning hole and a nut. After the fixing bolt is inserted into the interior of the positioning hole, it is attracted by a magnetic attraction block. When the fixing bolt is twisted, the second internal compression spring is compressed, thereby facilitating the two double-walled corrugated pipes to be fixed together.

[0013] The utility model arranges a fixing ring, a connecting pipe, a first compression spring, a pressing block, a movable groove and a rubber pad. The pressing block compresses the first compression spring, and the elastic force provided by the first compression spring plays an auxiliary fixing role on the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the main body of the utility model;

[0016] Figure 3 It is a schematic diagram of the transverse cross-sectional structure of the main body of the utility model;

[0017] Figure 4 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 5 It is a longitudinal sectional structural schematic diagram of the main body of the utility model.

[0019] In the figure: 1. connecting pipe; 2. fixing ring; 3. limiting ring; 4. fixing bolt; 5. threaded groove; 6. positioning hole; 7. first compression spring; 8. pressure block; 9. movable groove; 10. rubber pad; 11. second compression spring; 12. magnetic block. 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] like Figure 1-Figure 5 As shown together, a double-wall corrugated pipe splicing device includes two connecting pipes 1 and two fixing rings 2. The two connecting pipes 1 are arranged opposite to each other. The fixing rings 2 are respectively sleeved on the outer sides of the opposite ends of the two connecting pipes 1. The outer sides of the fixing rings 2 are fixedly connected to the limiting rings 3. The interior of the limiting rings 3 is provided with a positioning hole 6, and the positioning hole 6 is provided with a fixing bolt 4. The bottom of the positioning hole 6 is provided with a threaded groove 5, the threaded groove 5 passes through one limiting ring 3 and extends to the other limiting ring 3, and the fixing bolt 4 is threadedly connected to the interior of the threaded groove 5, and the interior of the threaded groove 5 is fixedly connected to a second compression spring 11, and the end of the second compression spring 11 close to the positioning hole 6 is fixedly connected to a magnetic suction block 12.

[0022] In actual use, double-wall corrugated pipes are usually provided with joint parts to facilitate mutual connection. The connecting pipe 1 in this embodiment is the connecting structure. When in use, the fixing ring 1 and the limiting ring 3 are installed on the connecting pipe, and then the two connecting pipes 1 are connected, and then the two limiting rings 3 are connected, so that the positioning holes 6 and the threaded grooves 5 are aligned, and the fixing bolts 4 are screwed in to fix the two limiting rings 3 together. The two connecting pipes 1 and the double-wall corrugated pipes connected to the connecting pipes 1 are spliced ​​together. The structure is simple and the operation is convenient.

[0023] After the fixing bolt 4 is inserted into the positioning hole 6, it will be attracted by the magnetic block 12, which facilitates the insertion of the fixing bolt 4. When the fixing bolt 4 is twisted, the internal second compression spring 11 is compressed, and the second compression spring 11 pushes the magnetic block 12 to press against the fixing bolt 4, thereby achieving a certain anti-loosening effect.

[0024] In this embodiment, the opposite ends of the two limit rings 3 extend axially to protrude from the ends of the fixing ring 2, and a plurality of first compression springs 7 are fixedly connected circumferentially on the inner wall of the portion of the limit ring 3 protruding from the fixing ring 2, and a plurality of first compression springs 7 are fixedly connected to one end of the plurality of first compression springs 7 away from the limit ring 3, respectively, and a plurality of pressure blocks 8 are fixedly connected, the plurality of pressure blocks 8 are distributed in a circular ring shape, and the pressure blocks 8 are arranged in an arc shape toward the inner wall of the connecting tube 1. After the connecting tube 1 is docked, the pressure blocks 8 are pressed against the outer wall of the connecting tube 1, thereby assisting in positioning the connecting tube 1.

[0025] Specifically, a rubber pad 10 is fixedly connected to the inner wall of the pressing block 8 , and the rubber pad 10 cooperates with the connecting pipe 1 to avoid abrasion to the outer wall of the connecting pipe 1 .

[0026] In this embodiment, elastic pull ropes 9 are connected between the pressing blocks 8 arranged in a circular shape, which can tighten the pressing blocks and further enhance the auxiliary positioning effect of the connecting pipe.

[0027] Working principle: When using the double-wall corrugated pipe splicing device, first put the fixing ring 2 on the connecting pipe 1, so that the rubber pad on the pressure block rests against the outer wall of the connecting pipe 1, then dock the two connecting pipes 1, and then dock the two limiting rings 3, align the positioning holes 6 and the threaded grooves 5, screw in the fixing bolts 4, fix the two limiting rings 3 together, and splice the two connecting pipes 1 and the double-wall corrugated pipes connected to the connecting pipes 1 together. The structure is simple and the operation is convenient.

[0028] This is the working principle of the double-wall corrugated pipe splicing device.

Claims

1. A double-wall corrugated pipe splicing device, comprising two connecting pipes (1) and two fixing rings (2), wherein the two connecting pipes (1) are arranged opposite to each other, and characterized in that: The outer sides of the opposite ends of the two connecting pipes (1) are respectively sleeved with fixing rings (2), the outer sides of the fixing rings (2) are fixedly connected to the limiting rings (3), the inside of the limiting rings (3) are provided with positioning holes (6), and the positioning holes (6) are provided with fixing bolts (4), the bottom of the positioning holes (6) are provided with thread grooves (5), the thread grooves (5) pass through one limiting ring (3) and extend into the other limiting ring (3), and the fixing bolts (4) are threadedly connected to the inside of the thread grooves (5), the inside of the thread grooves (5) is fixedly connected to a second compression spring (11), and one end of the second compression spring (11) close to the positioning hole (6) is fixedly connected to a magnetic attraction block (12).

2. A double-wall corrugated pipe splicing device according to claim 1, characterized in that: The opposite ends of the two limiting rings (3) extend axially to protrude from the ends of the fixing ring (2); a plurality of first compression springs (7) are fixedly connected along the circumferential direction to the inner wall of the portion of the limiting ring (3) protruding from the fixing ring (2); a plurality of first compression springs (7) are fixedly connected to one end away from the limiting ring (3) and a pressure block (8) is respectively fixedly connected; the plurality of pressure blocks (8) are distributed in a circular ring shape, and the pressure blocks (8) are arranged in an arc shape toward the inner wall of the connecting tube (1).

3. A double-wall corrugated pipe splicing device according to claim 2, characterized in that: A rubber pad (10) is fixedly connected to the inner side wall of the pressing block (8), and the rubber pad (10) matches the connecting pipe (1).

4. A double-wall corrugated pipe splicing device according to claim 2, characterized in that: Elastic pull ropes (9) are connected between the pressing blocks (8) arranged in a circular shape.

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