CN217003612U

CN217003612U - Corrugated pipe compensator without thread seal

Info

Publication number: CN217003612U
Application number: CN202123208317.9U
Authority: CN
Inventors: 蒋一忠; 高雷; 蒋峰
Original assignee: Changzhou Jintan Hongtu Rubber And Plastic Products Co ltd
Current assignee: Changzhou Jintan Hongtu Rubber And Plastic Products Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-07-19
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a corrugated pipe compensator without thread sealing, which comprises a compensator body, wherein the compensator body comprises a corrugated pipe body and an inner pipe, the inner pipe is arranged at the inner side of the corrugated pipe body, a locking mechanism is arranged at the outer side of a port of the inner pipe, the locking mechanism consists of a group of locking blocks with the same structure, two groups of first springs are arranged at the inner side of each locking block, the other ends of the first springs are arranged in spring fixing holes in the outer walls of the two ends of the corrugated pipe body, a round table of each locking block is connected with a groove of a flange plate in a matched manner, the other end of the flange plate is an external pipe fitting, and the inner wall of the flange plate is provided with a circular groove. The utility model discloses a corrugated pipe compensator without a threaded seal, which can realize the quick installation of the corrugated pipe compensator and an external pipe fitting, improve the installation efficiency and ensure the connection sealing property.

Description

Corrugated pipe compensator without thread seal

Technical Field

The utility model relates to the field of corrugated pipe compensators, in particular to a corrugated pipe compensator without thread sealing.

Background

The corrugated pipe compensator is one kind of compensating element, and has effective expansion and contraction to absorb the size change of pipeline, duct, container, etc. caused by expansion caused by heat and contraction caused by cold or compensate the axial displacement of pipeline, duct, container, etc. and is used widely in modern industry.

In the prior art, the corrugated pipe compensator still has various problems in the use process, when the existing compensator main body needs to be installed with an external pipe fitting, most of the existing compensator main body is connected in a threaded sealing mode, the problem that a first flange plate on the compensator main body cannot be aligned with a threaded hole on the external pipe fitting can occur in the connection process, the compensator main body and the external pipe fitting are inconvenient to position and install, and therefore the installation efficiency of the compensator main body is reduced.

SUMMERY OF THE UTILITY MODEL

According to the technical problem to be solved, a corrugated pipe compensator without thread sealing is provided.

In order to achieve the purpose, the utility model discloses a corrugated pipe compensator without thread sealing, which comprises a compensator body, wherein the compensator body comprises a corrugated pipe body and an inner pipe, the inner pipe is arranged at the inner side of the corrugated pipe body, the outer side of the port of the inner pipe is provided with a locking mechanism, the locking mechanism consists of a group of locking blocks with the same structure, the inner side of each locking block is provided with two groups of first springs, the other ends of the first springs are arranged in spring fixing holes in the outer walls of the two ends of the corrugated pipe body, round platforms of the locking blocks are connected with a groove of a flange in a matched mode, the other end of the flange is an external pipe fitting, and the inner wall of the flange is provided with a circular groove.

Furthermore, the edge of the corrugated pipe body is provided with a boss, and the outer diameter of the boss is smaller than the height of the wave crest of the corrugated pipe.

Furthermore, the locking mechanism is composed of a group of locking blocks with the same structure, each locking block comprises an axial limiting block and a radial limiting structure, a second spring is arranged on the inner side of the axial limiting block, and the other end of the second spring is fixed at the axial step of the radial limiting structure.

Furthermore, a section of knurled structure is arranged on the outer wall of the radial limiting structure.

Furthermore, the compression deformation amount of the second springs is not less than the axial thickness of the axial limiting block, and at least three second springs are arranged in one locking block.

Furthermore, the compression deformation amount of the first springs is not smaller than the radial width of the circular truncated cone of the locking block, and the number of the group of the first springs is at least three and is arranged corresponding to the number of the spring fixing holes.

Furthermore, a sealing rubber gasket is arranged between the inner pipe and the inner side step of the outer pipe fitting.

Has the advantages that: according to the corrugated pipe compensator without the threaded seal, the elastic locking mechanisms are arranged at the two ends of the compensator body, so that the corrugated pipe compensator and some external pipe fittings which cannot move can be quickly installed, the problem that the corrugated pipe compensator is difficult to install due to the fact that threaded holes of the corrugated pipe compensator and the external pipe fittings cannot be aligned is solved, the installation efficiency is improved, and the connection sealing performance is guaranteed.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Figure 1 is an exploded view of a threadless sealed bellows compensator of the present invention.

FIG. 2 is a schematic view of an assembly of a bellows compensator without a threaded seal according to the present invention.

Fig. 3 is a partial view of a threadless seal bellows compensator locking mechanism of the present invention.

In the figure: 1 is an external pipe fitting; 2 is a locking block; 21 is an axial limiting block; 22 is a radial limiting mechanism; 23 is a second spring; 3 is a flange plate; 4 is a first spring; 5 is a corrugated pipe body; 6 is a boss; 7 is an inner tube; and 8, a spring fixing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

As shown in fig. 1 and 2, a thread-free sealed corrugated pipe compensator comprises a compensator body, the compensator body comprises a corrugated pipe body 5 and an inner pipe 7, the inner pipe 7 is arranged on the inner side of the corrugated pipe body 5, a locking mechanism is arranged on the outer side of a port of the inner pipe 7, the locking mechanism is composed of a group of locking blocks 2 with the same structure, two groups of first springs 4 are arranged on the inner side of each locking block 2, the other ends of the first springs 4 are arranged in spring fixing holes 8 formed in the outer walls of the two ends of the corrugated pipe body 5, a circular truncated cone of each locking block 2 is connected with grooves of a flange plate 3 in a matched mode, the other end of each flange plate 3 is an external pipe fitting 1, and the inner wall of each flange plate 3 is provided with a circular groove.

The edge of the corrugated pipe body 5 is provided with a circular truncated cone, the outer diameter of the circular truncated cone is smaller than the wave crest height of the corrugated pipe, and the circular truncated cone is used for axially limiting the locking mechanism.

As shown in fig. 3, the locking mechanism is composed of a group of locking blocks 2 with the same structure, the locking blocks 2 include an axial limiting block 21 and a radial limiting structure 22, a second spring 23 is arranged on the inner side of the axial limiting block 21, and the other end of the second spring 23 is fixed at the axial step of the radial limiting structure 22, so that an operator can conveniently connect the compensator.

The outer wall of the radial limiting structure 21 is provided with a section of knurled structure, and the knurled structure enables an operator not to slip easily in the using process.

The compression deformation amount of the second springs 23 is not less than the axial thickness of the axial limiting block 21, at least three second springs 23 are arranged in one locking block 2, and the second springs 23 can apply an axial locking force to the locking mechanism.

The compression deformation amount of the first springs 4 is not smaller than the radial width of the circular truncated cone of the locking block 2, the number of the first springs 4 is at least three, the first springs are arranged corresponding to the number of the spring fixing holes 8, and the first springs 4 can apply a radial locking force to the locking mechanism.

And a sealing rubber gasket is arranged between the inner pipe 7 and the step on the inner side of the external pipe fitting 1, so that the connection sealing property is improved.

The working principle is as follows: the utility model provides a corrugated pipe compensator without thread sealing, under normal conditions, a first spring 4 and a second spring 23 are in free states, when an operator needs to connect the corrugated pipe compensator, a flange 3 is firstly welded at the port of an external pipe fitting 1 to be connected, then radial force is applied to a group of radial limiting blocks 22 in a locking mechanism to enable the first spring 4 to be in a compression limit state, then axial force is applied to the locking mechanism, a circular table of the locking mechanism can smoothly pass through the flange 3, after the axial limiting blocks 21 contact the inner wall of the flange, the second spring 23 is continuously compressed to the limit state, when the axial limiting blocks 21 and the radial limiting blocks 22 simultaneously contact the inner wall of the flange, the operator removes the applied force, at the moment, the first spring 4 and the second spring 23 deform but are still in the compression state, the locking mechanism simultaneously applies axial and radial locking forces to the flange 3, the connecting and sealing effects are realized. When disassembly is required, radial force is applied to the radial limiting structure 22, and then an opposite axial force is applied to the compensator. Compared with the prior art, the corrugated pipe compensator without the thread seal structure has the advantages that the thread seal structure is replaced by the elastic seal structure, so that external pipes which cannot move can be rapidly installed, the situation that installation is difficult due to the fact that threaded holes cannot be aligned is avoided, and installation efficiency is improved.

The points to be explained are as follows: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed; second, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are also included in the scope of the present invention.

Claims

1. The utility model provides a no thread seal's bellows compensator, includes the compensator body, its characterized in that: the compensator body includes corrugated pipe body (5) and inner tube (7), inner tube (7) set up in corrugated pipe body (5) inboard, the inner tube (7) port outside is provided with locking mechanism, and locking mechanism comprises latch segment (2) that a set of structure is the same, latch segment (2) inboard is provided with two sets of first spring (4), the other end setting of first spring (4) is in spring fixed orifices (8) on corrugated pipe body (5) both ends outer wall, the round platform and ring flange (3) the recess cooperation of latch segment (2) are connected, the other end of ring flange (3) is outside pipe fitting (1), and ring flange (3) inner wall is provided with annular groove.

2. A threadless sealed bellow compensator according to claim 1, wherein: the edge of the corrugated pipe body (5) is provided with a boss (6), and the outer diameter of the boss is smaller than the height of the wave crest of the corrugated pipe.

3. A threadless sealed bellows compensator according to claim 1, wherein: the locking mechanism is composed of a group of locking blocks (2) with the same structure, each locking block (2) comprises an axial limiting block (21) and a radial limiting structure (22), a second spring (23) is arranged on the inner side of each axial limiting block (21), and the other end of each second spring (23) is fixed at the axial step of each radial limiting structure (22).

4. A threadless sealed bellows compensator according to claim 3, wherein: and a section of knurled structure is arranged on the outer wall of the radial limiting structure (22).

5. A threadless sealed bellows compensator according to claim 3, wherein: the compression deformation amount of the second springs (23) is not less than the axial thickness of the axial limiting block (21), and at least three second springs (23) are arranged in one locking block (2).

6. A threadless sealed bellows compensator according to claim 1, wherein: the compression deformation amount of the first springs (4) is not smaller than the radial width of the round table of the locking block (2), the number of the first springs (4) is at least three, and the first springs correspond to the number of the spring fixing holes (8).

7. A threadless sealed bellow compensator according to claim 1, wherein: and a sealing rubber gasket is arranged between the inner pipe (7) and the inner side step of the external pipe fitting (1).