CN218494460U

CN218494460U - Thrust-free corrugated expansion joint

Info

Publication number: CN218494460U
Application number: CN202221916047.9U
Authority: CN
Inventors: 郭颖
Original assignee: Liaoning Tiankuo Special Bellows Co ltd
Current assignee: Qinhuangdao Taidy Flex Tech Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-02-17
Anticipated expiration: 2032-07-22

Abstract

The utility model discloses a thrust-free corrugated expansion joint, belonging to the technical field of expansion joints, comprising a corrugated pipe, wherein both ends of the corrugated pipe are connected with end pipes, the outer side walls of the two end pipes are connected with flanges, one sides of the two flanges, which are close to each other, are connected with a threaded sleeve, and the interior of the threaded sleeve is provided with a threaded hole; the utility model discloses set up seal assembly, when needing the installation, arrange whole device in pipe-line system earlier inside, then hold the operation handle and drive two-way screw rod and rotate, close the cooperation soon with the screw thread sheathed tube screw thread at both ends under two-way screw rod, make the screw thread sleeve pipe move to the outside, the screw thread sleeve pipe removes and drives a removal section of thick bamboo and flange removal, a removal section of thick bamboo removes and drives the spring and takes place the lateral wall that deformation made a removal section of thick bamboo laminating operation handle, under the effect of a removal section of thick bamboo, can avoid the material among the external environment to produce the erosion action to two-way screw rod, guarantee the result of use of two-way screw rod.

Description

Thrust-free corrugated expansion joint

Technical Field

The utility model belongs to the technical field of the expansion joint, concretely relates to no thrust type ripple expansion joint.

Background

The corrugated expansion energy-saving expansion function is mainly realized by the corrugated pipe, the function and strength design of the corrugated expansion joint is mainly the design of the corrugated pipe, and the corrugated pipe can be stretched, compressed or bent by different designs and combinations of the corrugated pipe, so that the corrugated expansion joint with three basic forms of axial direction, transverse direction and angular direction is formed.

The Chinese patent application number of 201921877513.5 discloses a thrust-free corrugated expansion joint, wherein a threaded sleeve is connected between flanges on two end pipes in the device, a bidirectional screw is connected between the threaded sleeves in a threaded manner, and impurities in the external environment fall onto the bidirectional screw in the using process, so that the connecting effect of the bidirectional screw and the threaded sleeve is easily caused; in addition, the operating handle is arranged on the periphery of the bidirectional screw rod, when a user holds the operating handle to rotate the bidirectional screw rod, the hand is easy to slip, and in the process of holding the operating handle to apply force, the hand and the operating handle are easy to extrude, so that the hand is uncomfortable.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides a no thrust type ripple expansion joint has protection, antifriction's characteristics.

In order to achieve the above purpose, the utility model provides a following technical scheme: a thrust-free corrugated expansion joint comprises a corrugated pipe, wherein two ends of the corrugated pipe are connected with end pipes, the outer side walls of the two end pipes are connected with flanges, one sides, close to each other, of the two flanges are connected with threaded sleeves, threaded holes are formed in the threaded sleeves, two-way screws are in threaded connection with the inner portions of the threaded holes, the outer side walls of the two-way screws are connected with operating handles, and sealing assemblies are arranged between the threaded sleeves and the operating handles and located on the peripheries of the two-way screws;

the sealing assembly comprises a moving barrel, a spring and a moving cavity, the moving cavity is arranged in the threaded sleeve and located on the periphery of the threaded hole, the moving barrel is inserted in the moving cavity, and the spring is connected between the moving barrel and the moving cavity.

Preferably, a sealing ring is arranged at one end of the moving cylinder close to the operating handle, and the moving cylinder and the sealing ring are bonded through glue.

Preferably, the sealing assembly further comprises a limiting sliding block and a limiting sliding groove, the end, close to the spring, of the movable cylinder is connected with the limiting sliding block, and the limiting sliding groove is formed in the side wall of the movable cavity and corresponds to the position of the limiting sliding block.

Preferably, the periphery of the operating handle is provided with an anti-abrasion assembly, the anti-abrasion assembly comprises a first half cylinder, a rubber pad and a second half cylinder, one side of the periphery of the operating handle is provided with the first half cylinder, the other side of the periphery of the operating handle is provided with the second half cylinder, and one sides, away from the operating handle, of the first half cylinder and one side, away from the operating handle, of the second half cylinder are both connected with the rubber pad.

Preferably, the anti-wear assembly further comprises a connecting ring, an external connecting ring and an annular groove, the external connecting ring is connected to two ends of the periphery of the operating handle, the connecting ring is connected to the inner side walls of the first half cylinder and the second half cylinder and corresponds to the position of the external connecting ring, and the annular groove is formed in the position of the external connecting ring and corresponds to the position of the connecting ring.

Preferably, one end of the connecting ring, which is far away from the first half cylinder, is connected with a plug-in post, and a plug-in groove is arranged on the side wall of the annular groove and at a position corresponding to the plug-in post.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses set up seal assembly, when needing the installation, earlier arrange whole device in inside the pipe-line system, then hold the operation handle and drive two-way screw rod and rotate, close the cooperation with the screw thread of the screw sleeve at both ends soon under two-way screw rod, make the screw sleeve move to the outside, the screw sleeve removes and drives a removal section of thick bamboo and flange and remove, it takes place to deform to make the lateral wall of a removal section of thick bamboo laminating operation handle to remove a section of thick bamboo removal drive spring, under the effect of removing a section of thick bamboo, can avoid the material among the external environment to produce the erosion action to two-way screw rod, guarantee two-way screw rod's result of use.

2. The utility model discloses set up the abrasionproof subassembly, aim at the position department of grafting groove earlier with the spliced pole, remove first half a section of thick bamboo and the half section of thick bamboo of second to the operation handle again, first half a section of thick bamboo and the half section of thick bamboo of second remove and drive the inside removal of connecting ring to the ring channel, the go-between removes and drives the spliced pole and remove to the inside of splicing groove, after the spliced pole enters into the inside back of splicing groove completely, stop removing first half a section of thick bamboo and the half section of thick bamboo of second, then recycle bolt will connect ring and go-between fixed connection outward, thereby can be with first half a section of thick bamboo and the half fixed connection of second on the operation handle, in-process at follow-up control operation handle, the rubber pad can avoid operator's hand to take place the phenomenon of skidding, and can avoid taking place the extrusion friction between user's hand and the operation handle, cause the hand to be uncomfortable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the connection state of the threaded sleeve and the two-way screw according to the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of the handle of the present invention;

fig. 5 is an enlarged view of the point B in fig. 4 according to the present invention.

In the figure: 1. an end pipe; 2. a bellows; 3. a flange; 4. a threaded bushing; 5. a seal assembly; 51. moving the drum; 52. a seal ring; 53. a spring; 54. a moving chamber; 55. a limiting slide block; 56. a limiting chute; 6. an operating handle; 7. a threaded hole; 8. a bidirectional screw; 9. an anti-wear assembly; 91. a first half cylinder; 92. a rubber pad; 93. a second half cartridge; 94. a connecting ring; 95. an external ring; 96. an annular groove.

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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions: a thrust-free corrugated expansion joint comprises a corrugated pipe 2, wherein two ends of the corrugated pipe 2 are connected with end pipes 1, the outer side walls of the two end pipes 1 are connected with flanges 3, one sides, close to each other, of the two flanges 3 are connected with threaded sleeves 4, threaded holes 7 are formed in the threaded sleeves 4, two-way screws 8 are in threaded connection with the inner portions of the threaded holes 7, the outer side walls of the two-way screws 8 are connected with operating handles 6, and sealing assemblies 5 are arranged between the threaded sleeves 4 and the operating handles 6 and located on the peripheries of the two-way screws 8;

the sealing assembly 5 comprises a moving cylinder 51, a spring 53 and a moving cavity 54, the moving cavity 54 is arranged inside the threaded sleeve 4 and on the periphery of the threaded hole 7, the moving cylinder 51 is inserted into the moving cavity 54, and the spring 53 is connected between the moving cylinder 51 and the moving cavity 54.

Specifically, a sealing ring 52 is arranged at one end of the moving cylinder 51 close to the operating handle 6, the moving cylinder 51 and the sealing ring 52 are bonded through glue,

through adopting above-mentioned technical scheme, avoid having the gap between removal section of thick bamboo 51 and the operation handle 6, cause impurity such as dust among the external environment to enter into through the gap and remove inside the section of thick bamboo 51 to the adhesion is to two-way screw rod 8.

Specifically, the sealing assembly 5 further includes a limiting slide block 55 and a limiting slide groove 56, one end of the movable cylinder 51 close to the spring 53 is connected with the limiting slide block 55, the limiting slide groove 56 is arranged on the side wall of the movable cavity 54 and at a position corresponding to the limiting slide block 55,

by adopting the technical scheme, a guiding effect is provided for the movement of the moving cylinder 51, and the moving stability of the moving cylinder 51 is improved.

When the device is used and needs to be installed, the whole device is placed in a pipeline system, the operation handle 6 is held by a hand to drive the bidirectional screw 8 to rotate, the threaded sleeve 4 moves outwards under the screwing fit of the bidirectional screw 8 and the threads of the threaded sleeves 4 at two ends, the threaded sleeve 4 moves to drive the moving cylinder 51 and the flange 3 to move, the moving cylinder 51 moves to drive the spring 53 to deform, so that the moving cylinder 51 is attached to the outer side wall of the operation handle 6, under the action of the moving cylinder 51, the phenomenon that substances in the external environment corrode the bidirectional screw 8 can be avoided, the using effect of the bidirectional screw 8 is ensured, when the flange 3 moves to be in contact with the pipeline system, the flange 3 is fixedly connected with the pipeline by using bolts, and the whole device can be fixed in the pipeline system;

example 2

The present embodiment is different from embodiment 1 in that: an anti-wear assembly 9 is arranged on the periphery of the operating handle 6, the anti-wear assembly 9 comprises a first half cylinder 91, a rubber pad 92 and a second half cylinder 93, the first half cylinder 91 is arranged on one side of the periphery of the operating handle 6, the second half cylinder 93 is arranged on the other side of the periphery of the operating handle 6, the rubber pads 92 are connected on the sides of the first half cylinder 91 and the second half cylinder 93 far away from the operating handle 6,

specifically, the anti-wear assembly 9 further includes a connection ring 94, an external connection ring 95 and an annular groove 96, the external connection ring 95 is connected to both ends of the periphery of the operating handle 6, the connection ring 94 is connected to the inner side walls of the first half cylinder 91 and the second half cylinder 93 and corresponds to the external connection ring 95, the annular groove 96 is arranged on the external connection ring 95 and corresponds to the connection ring 94,

through adopting above-mentioned technical scheme, can be connected to the lateral wall of action bars 6 with half first section of thick bamboo 91 and half second section of thick bamboo 93 are dismantled, make things convenient for the staff to carry out the dismouting to half first section of thick bamboo 91 and half second section of thick bamboo 93.

Specifically, one end of the connection ring 94, which is far away from the first half-cylinder 91, is connected with a plug-in post, a plug-in groove is arranged on the side wall of the annular groove 96 and at a position corresponding to the plug-in post,

by adopting the above technical scheme, the connection ring 94 can be preliminarily positioned and connected to the inside of the annular groove 96, so that the connection ring 94 and the external connection ring 95 can be fixedly connected by using bolts in the following process.

When the operation handle 6 is controlled subsequently, the rubber pad 92 can prevent the hand of an operator from slipping and prevent the hand of the user from being squeezed and rubbed with the operation handle 6 and discomfort in the process of controlling the operation handle 6.

The utility model discloses well end pipe 1, bellows 2's structure and theory of operation have disclosed in the thrust type ripple expansion joint that chinese patent application number is 201921877513.5 discloses.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A thrust-free corrugated expansion joint comprises a corrugated pipe (2), and is characterized in that: the two ends of the corrugated pipe (2) are connected with end pipes (1), the outer side walls of the two end pipes (1) are connected with flanges (3), one sides, close to each other, of the two flanges (3) are connected with threaded sleeves (4), threaded holes (7) are formed in the threaded sleeves (4), two-way screws (8) are connected with the internal threads of the threaded holes (7), the outer side walls of the two-way screws (8) are connected with operating handles (6), and sealing assemblies (5) are arranged between the threaded sleeves (4) and the operating handles (6) and located on the peripheries of the two-way screws (8);

the sealing assembly (5) comprises a moving cylinder (51), a spring (53) and a moving cavity (54), the moving cavity (54) is arranged in the threaded sleeve (4) and on the periphery of the threaded hole (7), the moving cylinder (51) is inserted into the moving cavity (54), and the spring (53) is connected between the moving cylinder (51) and the moving cavity (54).

2. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: and a sealing ring (52) is arranged at one end of the moving cylinder (51) close to the operating handle (6), and the moving cylinder (51) and the sealing ring (52) are bonded through glue.

3. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: the sealing assembly (5) further comprises a limiting sliding block (55) and a limiting sliding groove (56), one end, close to the spring (53), of the moving cylinder (51) is connected with the limiting sliding block (55), and the limiting sliding groove (56) is arranged on the side wall of the moving cavity (54) and corresponds to the position of the limiting sliding block (55).

4. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: the periphery of handle (6) is provided with abrasionproof subassembly (9), abrasionproof subassembly (9) include first half section of thick bamboo (91), rubber pad (92) and half section of thick bamboo of second (93), the peripheral one side of handle (6) is provided with first half section of thick bamboo (91), the peripheral opposite side of handle (6) is provided with half section of thick bamboo of second (93), the one side of keeping away from handle (6) of half section of thick bamboo of first (91) and second (93) all is connected with rubber pad (92).

5. The thrust-free corrugated expansion joint as set forth in claim 4, wherein: the anti-abrasion assembly (9) further comprises a connecting ring (94), an external connecting ring (95) and an annular groove (96), the two ends of the periphery of the operating handle (6) are connected with the external connecting ring (95), the connecting ring (94) is connected to the inner side walls of the first half cylinder (91) and the second half cylinder (93) and corresponds to the position of the external connecting ring (95), and the annular groove (96) is formed in the position of the external connecting ring (95) and corresponds to the position of the connecting ring (94).

6. The thrust-free corrugated expansion joint as set forth in claim 5, wherein: one end, far away from the first half cylinder (91), of the connecting ring (94) is connected with an inserting column, and an inserting groove is formed in the side wall of the annular groove (96) and corresponds to the inserting column.