Heat preservation steel pipe convenient to butt joint

Abstract

The utility model discloses a heat preservation steel pipe convenient to butt joint, and relates to the technical field of pipeline butt joint. The heat preservation steel pipe connecting structure comprises two heat preservation steel pipes, the outer surfaces of the two heat preservation steel pipes are fixedly connected with first connecting rings, first threaded rings are arranged on the outer surfaces of the two heat preservation steel pipes, and the inner walls of the first threaded rings are fixedly connected with the outer surfaces of the first connecting rings. A clamping assembly is arranged on the corresponding sides of the two heat preservation steel pipes and comprises a first clamping sleeve and a second clamping sleeve, and the central axis of the first clamping sleeve, the central axis of the second clamping sleeve and the central axis of the heat preservation steel pipes are located on the same straight line. According to the heat preservation steel pipe connecting device, the two heat preservation steel pipes are connected together through the arrangement of the clamping assembly, particularly through the cooperation of the first clamping sleeve and the second clamping sleeve, the heat preservation steel pipes are not prone to dislocation, the installation speed is high, efficiency is high, disassembly is convenient, the heat preservation steel pipes cannot be damaged during disassembly, the speed is increased, and the heat preservation steel pipes are protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline butt jointing, and particularly relates to a heat-insulating steel pipe which is convenient for butt jointing. Background Art

[0002] Insulated steel pipes are generally used for the transportation of water or gas. Due to their low heat loss and energy saving characteristics, they have been widely used in engineering petroleum, chemical industry, central air-conditioning ventilation ducts, municipal engineering and other fields.

[0003] At present, in the specific application and installation of thermal insulation pipes, it is necessary to butt the pipes together; the traditional butt connection method is to align the ends of the two pipes first, and then use welding to connect and fix the two pipes. However, the welding method has certain inconveniences, and it is easy to cause butt dislocation during the construction process, the welding efficiency is low, and the quality of the weld is poor. In addition, the welding method is not easy to disassemble, which affects the subsequent disassembly of the pipeline. Utility Model Content

[0004] The purpose of the utility model is to provide an insulated steel pipe that is easy to connect. By setting a clamping assembly, specifically by cooperating with a clamping sleeve 1 and a clamping sleeve 2 to connect two insulated steel pipes together, it is not easy to cause the insulated steel pipe to be dislocated, the installation speed is fast, the efficiency is high, and it is easy to disassemble. The insulated steel pipe will not be damaged during disassembly. It not only improves the speed, but also protects the insulated steel pipe, and solves the problem of the existing welding method to achieve the connection and fixation of two pipes. The welding method has certain inconveniences, and the connection misalignment is easy to occur during the construction process. The welding efficiency is low, and the quality of the weld is poor. In addition, the welding method is not easy to disassemble.

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

[0006] The utility model is a heat-insulating steel pipe that is easy to connect, including heat-insulating steel pipes, the number of which is two, the outer surfaces of the two heat-insulating steel pipes are fixedly connected with a connecting ring, the outer surfaces of the two heat-insulating steel pipes are provided with a threaded ring, the inner wall of the threaded ring is fixedly connected with the outer surface of the connecting ring, and the corresponding sides of the two heat-insulating steel pipes are provided with a clamping assembly;

[0007] The clamping assembly includes a clamping sleeve 1 and a clamping sleeve 2, the central axes of the clamping sleeve 1 and the clamping sleeve 2 are all in the same straight line with the central axis of the insulated steel pipe, a cavity 1 is opened at the center of the inner part of the clamping sleeve 1, and a support ring 1 is fixedly connected to the inner wall of the cavity 1. By setting the clamping assembly, specifically by cooperating with the clamping sleeve 1 and the clamping sleeve 2, the two insulated steel pipes are connected together, which makes it difficult for the insulated steel pipes to be misplaced, and the installation speed is fast, the efficiency is high, and the disassembly is convenient. The insulated steel pipe will not be damaged during disassembly, which not only improves the speed but also protects the insulated steel pipe.

[0008] Furthermore, a conical groove is provided on the right side of the clamping sleeve 1, and the clamping sleeve 1 is threadedly connected to the inner wall of the threaded ring 1 located on the left side through a thread. The right side of the clamping sleeve 1 is fixedly connected with a threaded ring 2, and the clamping sleeve 1 and the insulated steel pipe located on the left side can be connected together through the threaded connection, so that the clamping sleeve 1 is fixed, so that the clamping sleeve 1 can be docked with another clamping sleeve.

[0009] Furthermore, the outer surface of the threaded ring 2 is threadedly connected to the inner wall of the threaded ring 1 located on the right side, a cavity 2 is opened at the center of the inner part of the clamping sleeve 2, and the inner wall of the cavity 2 is fixedly connected to a support ring 2. The outer surface of the support ring 1 is slidingly connected to the inner wall of the insulated steel pipe located on the left side, and the clamping sleeve 1 and the insulated steel pipe located on the right side are connected together through the threaded ring 2, so that the two insulated steel pipes are connected together and can be subsequently docked. The close contact between the support ring 1 and the inner wall of the insulated steel pipe can prevent leakage when the insulated steel pipe is conveying gas or liquid.

[0010] Furthermore, the outer surface of the second support ring is slidably connected to the inner wall of the insulated steel pipe located on the right side, and the left side of the second clamping sleeve is fixedly connected to a second connecting ring. The interior of the second connecting ring is conically set, and the outer surface of the second connecting ring is in contact with the inner wall of the conical groove. Since the conical groove and the second connecting ring are adapted to each other, the second connecting ring can smoothly enter the conical groove during docking, so that the first clamping sleeve and the second clamping sleeve can be docked.

[0011] Furthermore, a connecting groove 1 is provided inside the support ring 1, a connecting groove 2 is provided inside the support ring 2, and sealing rings are provided inside both the support ring 1 and the support ring 2. The outer surface of the sealing ring on the left side is clamped with the inner wall of the connecting groove 1, and the outer surface of the sealing ring on the right side is clamped with the inner wall of the connecting groove 2. An annular groove is provided inside the clamping sleeve 2. By arranging the sealing ring at the joint of the clamping sleeve 1 and the clamping sleeve 2, it is not easy for the insulated steel pipe to leak from the joint when conveying gas or liquid.

[0012] Furthermore, threaded holes are provided at the top and bottom of the threaded ring 2, and threaded rods are threadedly connected to the inner walls of the two threaded holes. A clamping block is provided on the side of the two threaded rods close to the clamping sleeve 2, and a rotating hole is provided on the side of the two clamping blocks away from the clamping sleeve 2. The inner walls of the two rotating holes are rotatably connected with rotating blocks, and the sides of the two rotating blocks away from the clamping sleeve 2 are fixedly connected to the sides of the threaded rods close to the clamping sleeve 2. The outer surfaces of the two clamping blocks are in contact with the inner wall of the annular groove. The clamping block is provided, specifically, the threaded rod is rotated clockwise to drive the rotating block to rotate inside the clamping block, so as to clamp the clamping sleeve 2, and the clamping sleeve 1 and the clamping sleeve 2 are fixed for the second time, so that the joint between the pipes is more stable and the overall stability is improved.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model connects two insulated steel pipes together by setting a clamping assembly, specifically by cooperating with a clamping sleeve 1 and a clamping sleeve 2, which makes it difficult for the insulated steel pipes to be misplaced, has a fast installation speed, high efficiency, and is easy to disassemble. The insulated steel pipes will not be damaged during disassembly, which not only improves the speed but also protects the insulated steel pipes.

[0015] 2. The utility model sets a clamping block, specifically, by rotating the threaded rod clockwise to drive the rotating block to rotate inside the clamping block, clamping the clamping sleeve 2, and performing secondary fixation on the clamping sleeve 1 and the clamping sleeve 2, so that the joint between the pipes is more stable and the overall stability is improved.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model thermal insulation steel pipe;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 This is a schematic cross-sectional view of the structure of the utility model clamping assembly;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of B.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Insulated steel pipe; 11. Threaded ring one; 12. Connecting ring one; 2. Snap-on assembly; 21. Snap-on sleeve one; 22. Snap-on sleeve two; 23. Support ring one; 24. Connecting ring two; 25. Threaded ring two; 251. Threaded rod; 252. Rotating block; 253. Snap-on block; 26. Sealing ring; 27. Support ring two. DETAILED DESCRIPTION

[0025] 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 them. 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.

[0026] See also Figure 1-5 As shown, the utility model is an insulated steel pipe that is easy to connect, including an insulated steel pipe 1, the number of the insulated steel pipes 1 is two, the outer surfaces of the two insulated steel pipes 1 are fixedly connected with a connecting ring 12, the outer surfaces of the two insulated steel pipes 1 are provided with a threaded ring 11, the inner wall of the threaded ring 11 is fixedly connected with the outer surface of the connecting ring 12, and the corresponding side of the two insulated steel pipes 1 is provided with a clamping assembly 2;

[0027] The clamping assembly 2 includes a clamping sleeve 21 and a clamping sleeve 22. The central axes of the clamping sleeve 21 and the clamping sleeve 22 are on the same straight line as the central axis of the insulated steel pipe 1. A cavity 1 is opened at the center of the inner part of the clamping sleeve 21. A support ring 23 is fixedly connected to the inner wall of the cavity 1. By setting the clamping assembly 2, specifically by matching the clamping sleeve 21 and the clamping sleeve 22, the two insulated steel pipes 1 are connected together, which makes it difficult for the insulated steel pipes 1 to be misaligned. The installation speed is fast, the efficiency is high, and the disassembly is convenient. The insulated steel pipe 1 will not be damaged during disassembly, which not only improves the speed but also protects the insulated steel pipe 1.

[0028] A conical groove is provided on the right side of the clamping sleeve 21 , and the clamping sleeve 21 is threadedly connected to the inner wall of the threaded ring 11 on the left side through a thread, and a threaded ring 25 is fixedly connected to the right side of the clamping sleeve 21 .

[0029] The outer surface of the threaded ring 25 is threadedly connected to the inner wall of the threaded ring 11 located on the right side, and a cavity 2 is opened at the center of the inner part of the clamping sleeve 22. The inner wall of the cavity 2 is fixedly connected to a support ring 27, and the outer surface of the support ring 1 23 is slidably connected to the inner wall of the insulated steel pipe 1 located on the left.

[0030] The outer surface of the second support ring 27 is slidably connected to the inner wall of the insulation steel pipe 1 located on the right side, and the left side of the second clamping sleeve 22 is fixedly connected with a second connecting ring 24. The interior of the second connecting ring 24 is conical, and the outer surface of the second connecting ring 24 contacts the inner wall of the conical groove.

[0031] A connecting groove 1 is provided inside the support ring 1 23 , a connecting groove 2 is provided inside the support ring 2 27 , and sealing rings 26 are provided inside both the support ring 1 23 and the support ring 2 27 .

[0032] The outer surface of the sealing ring 26 on the left side is snap-fitted with the inner wall of the first connecting groove, and the outer surface of the sealing ring 26 on the right side is snap-fitted with the inner wall of the second connecting groove. An annular groove is provided inside the second snap-fit ​​sleeve 22 .

[0033] The top and bottom of the second threaded ring 25 are both provided with threaded holes, the inner walls of the two threaded holes are threadedly connected with threaded rods 251 , and a clamping block 253 is provided on one side of the two threaded rods 251 close to the second clamping sleeve 22 .

[0034] A rotating hole is opened on the side of the two clamping blocks 253 away from the clamping sleeve 22, and the inner walls of the two rotating holes are rotatably connected with the rotating blocks 252. The side of the two rotating blocks 252 away from the clamping sleeve 22 is fixedly connected to the side of the threaded rod 251 close to the clamping sleeve 22, and the outer surfaces of the two clamping blocks 253 are in contact with the inner wall of the annular groove.

[0035] A specific application of this embodiment is:

[0036] When in use, the support ring 1 23 is sleeved on the inside of the insulated steel pipe 1 on the left side, and then the clamping sleeve 1 21 is rotated to be threadedly connected with the threaded ring 11 on the left side, so that the clamping sleeve 1 21 and the insulated steel pipe 1 on the left side can be fixed, and then the support ring 27 is sleeved on the inside of the insulated steel pipe 1 on the right side, and then the clamping sleeve 1 21 is pulled close to the clamping sleeve 22. When the clamping sleeve 22 enters the inside of the clamping sleeve 1 21, the insulated steel pipe 1 on the right side is rotated to be threadedly connected with the threaded ring 25, which will make the clamping sleeve 22 close to the inside of the clamping sleeve 1 21. Since the inside of the connecting ring 24 is conical, the clamping sleeve 22 will cooperate with the conical groove of the clamping sleeve 1 21 to be able to smoothly It is clamped into the interior of the clamping sleeve 21, and then the threaded rod 251 is rotated clockwise to drive the rotating block 252 to rotate inside the clamping block 253, so that the clamping block 253 is close to the clamping sleeve 22 until it contacts the annular groove inside the clamping sleeve 22, and the clamping sleeve 22 is clamped to complete the docking of the two insulated steel pipes 1. When disassembly is required, it is only necessary to rotate the threaded rod 251 counterclockwise to drive the clamping block 253 to separate from the annular groove, cancel the fixation of the annular groove, and then rotate the insulated steel pipe 1 on the right side to drive the clamping sleeve 22 to separate from the clamping sleeve 1 21, so that the two insulated steel pipes 1 are separated, and the disassembly of the insulated steel pipe 1 is completed. The operation is quick and convenient, not easy to dislocate, and the speed is fast.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An insulated steel pipe that is easy to connect, comprising an insulated steel pipe (1), wherein the number of the insulated steel pipes (1) is two, the outer surfaces of the two insulated steel pipes (1) are fixedly connected with a connecting ring (12), the outer surfaces of the two insulated steel pipes (1) are provided with a threaded ring (11), the inner wall of the threaded ring (11) is fixedly connected to the outer surface of the connecting ring (12), and the characteristics are: A clamping assembly (2) is provided on one side corresponding to the two thermal insulation steel pipes (1); The clamping assembly (2) comprises a clamping sleeve 1 (21) and a clamping sleeve 2 (22), the central axes of the clamping sleeve 1 (21) and the clamping sleeve 2 (22) being on the same straight line as the central axis of the thermal insulation steel pipe (1), a cavity 1 being provided at the center of the interior of the clamping sleeve 1 (21), and a support ring 1 (23) being fixedly connected to the inner wall of the cavity 1.

2. The insulated steel pipe that is easy to connect according to claim 1, characterized in that: A conical groove is provided on the right side of the clamping sleeve 1 (21), and the clamping sleeve 1 (21) is threadedly connected to the inner wall of the threaded ring 1 (11) located on the left side through a thread, and the right side of the clamping sleeve 1 (21) is fixedly connected to the threaded ring 2 (25).

3. The heat-insulated steel pipe that is easy to connect according to claim 2, characterized in that: The outer surface of the second threaded ring (25) is threadedly connected to the inner wall of the first threaded ring (11) located on the right side, and a second cavity is opened at the center of the inner part of the second clamping sleeve (22). The inner wall of the second cavity is fixedly connected to the second support ring (27), and the outer surface of the first support ring (23) is slidably connected to the inner wall of the insulation steel pipe (1) located on the left side.

4. The heat-insulated steel pipe that is easy to connect according to claim 3, characterized in that: The outer surface of the second support ring (27) is slidably connected to the inner wall of the insulation steel pipe (1) located on the right side, and the left side of the second clamping sleeve (22) is fixedly connected to the second connecting ring (24), the interior of the second connecting ring (24) is conical, and the outer surface of the second connecting ring (24) contacts the inner wall of the conical groove.

5. The heat-insulated steel pipe that is easy to connect according to claim 4, characterized in that: The first support ring (23) is provided with a first connection groove inside, the second support ring (27) is provided with a second connection groove inside, and both the first support ring (23) and the second support ring (27) are provided with sealing rings (26) inside.

6. The heat-insulated steel pipe that is easy to connect according to claim 5, characterized in that: The outer surface of the sealing ring (26) on the left side is snap-fitted with the inner wall of the first connecting groove, and the outer surface of the sealing ring (26) on the right side is snap-fitted with the inner wall of the second connecting groove. An annular groove is provided inside the second snap-fit ​​sleeve (22).

7. The heat-insulated steel pipe that is easy to connect according to claim 6, characterized in that: The top and bottom of the second threaded ring (25) are both provided with threaded holes, the inner walls of the two threaded holes are threadedly connected with threaded rods (251), and a clamping block (253) is provided on one side of the two threaded rods (251) close to the second clamping sleeve (22).

8. The heat-insulated steel pipe that is easy to connect according to claim 7, characterized in that: A rotating hole is provided on one side of the two clamping blocks (253) away from the second clamping sleeve (22); the inner walls of the two rotating holes are rotatably connected with the rotating blocks (252); the sides of the two rotating blocks (252) away from the second clamping sleeve (22) are fixedly connected to the side of the threaded rod (251) close to the second clamping sleeve (22); and the outer surfaces of the two clamping blocks (253) are in contact with the inner wall of the annular groove.

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