CN216590528U

CN216590528U - Rubber expansion joint with axial deformation prevention function

Info

Publication number: CN216590528U
Application number: CN202023343499.6U
Authority: CN
Inventors: 刘彬; 邵进; 钟浩明; 范志平; 朱静
Original assignee: Jiangsu Yonghe Polymer Technology Co ltd
Current assignee: Jiangsu Yonghe Polymer Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-05-24
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a rubber expansion joint capable of preventing axial deformation, which comprises an expansion joint body, wherein the expansion joint body comprises a rubber pipe, flanges are arranged at two ends of the rubber pipe, a left inverted Z-shaped fixing block and a right inverted Z-shaped fixing block are respectively arranged at two sides of the top end and the bottom end of the two flanges, connecting rods are respectively arranged between the two left inverted Z-shaped fixing blocks and the two right inverted Z-shaped fixing blocks and positioned at the top end and the bottom end of the rubber pipe, and a left sleeve and a right sleeve are respectively arranged at two ends of one side of the two flanges and positioned at two ends of two sides of the rubber pipe. The utility model relates to a rubber expansion joint capable of preventing axial deformation, which is characterized in that a left inverted Z-shaped fixing block and a right inverted Z-shaped fixing block are arranged, a connecting rod is arranged between the left inverted Z-shaped fixing blocks and the right inverted Z-shaped fixing blocks, and a first buffer spring is sleeved outside the connecting rod, so that the body of the rubber expansion joint is prevented from avoiding axial deformation, and meanwhile, the elastic buffer performance of the body is not lost. The rubber expansion joint with the function of preventing axial deformation has the advantages of novel structure and low cost.

Description

Rubber expansion joint with axial deformation prevention function

Technical Field

The utility model relates to the technical field of rubber expansion joints, in particular to a rubber expansion joint capable of preventing axial deformation.

Background

The rubber expansion joint is generally composed of a smooth corrugated compensation element with rubber flanges at two ends and a metal flange. The metal flange is often of a loose sleeve structure. An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joint has many kinds, and the common structures include wave, ring plate welding, clamping shell type and the like, wherein the wave expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

The existing rubber expansion joint is used for preventing the pipeline from being deformed due to expansion with heat and contraction with cold, the traditional rubber expansion joint mostly does not have the performance of preventing axial deformation, and the rubber expansion joint with the performance of preventing axial deformation can lose the elastic buffering performance of the body. Thereby causing unnecessary trouble. We have therefore improved this and have proposed a rubber expansion joint with axial deformation resistance.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a rubber expansion joint capable of preventing axial deformation, which comprises an expansion joint body, wherein the expansion joint body comprises a rubber pipe, two ends of the rubber pipe are respectively provided with a flange, two sides of the top end and the bottom end of the two flanges are respectively provided with a left inverted Z-shaped fixing block and a right inverted Z-shaped fixing block, connecting rods are respectively arranged between the two left inverted Z-shaped fixing blocks and the two right inverted Z-shaped fixing blocks and positioned at the top end and the bottom end of the rubber pipe, two ends of one side of the two flanges are respectively provided with a left sleeve and a right sleeve, and two sides of the rubber pipe are respectively provided with a limiting rod between the two left sleeves and the two right sleeves.

As a preferred technical scheme of the utility model, the two flanges are respectively and fixedly arranged at two ends of the rubber tube, and are made of alloy materials.

According to a preferable technical scheme of the utility model, the bottom ends of the two left inverted Z-shaped fixing blocks and the two right inverted Z-shaped fixing blocks are respectively fixedly welded with the middle parts of the top ends and the lower ends of the two flange plates, and one ends of the two left inverted Z-shaped fixing blocks and one ends of the two right inverted Z-shaped fixing blocks are respectively provided with a threaded hole.

According to a preferable technical scheme of the utility model, threads are carved at two ends of the two connecting rods, the two ends of the two connecting rods are fixed between the two left inverted Z-shaped fixing blocks and the two right inverted Z-shaped fixing blocks through nuts, and first buffer springs are fixedly sleeved outside the two connecting rods.

As a preferable technical scheme of the utility model, the two left sleeves and the two right sleeves are fixedly arranged at two ends of one side of the two flange plates through screws, and second buffer springs are fixedly arranged in the two left sleeves and the two right sleeves.

As a preferred technical scheme, two sides of the two left sleeves and two sides of the two right sleeves are respectively provided with a limiting groove, two sides of two ends of the two connecting rods are respectively and fixedly provided with a clamping block, and the four clamping blocks are respectively arranged in the two limiting grooves.

The utility model has the beneficial effects that: this kind of rubber expansion joint with prevent axial deformation, through the left and right Z shape fixed block that falls that is equipped with, and the connecting rod that is equipped with between it and its outside first buffer spring that overlaps, when making its body can prevent to avoid axial deformation, can not lack the elastic buffer performance of body, through the left and right sleeve pipe that is equipped with and the gag lever post that is equipped with between it and the second buffer spring that one end was equipped with, make its body further strengthen the performance of preventing axial deformation and elastic buffer. The rubber expansion joint with the function of preventing axial deformation has the advantages of novel structure and low cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a rubber expansion joint with axial deformation prevention according to the present invention;

FIG. 2 is a schematic view of a partially exploded structure of a rubber expansion joint having axial deformation prevention according to the present invention;

FIG. 3 is a partially exploded view of a rubber expansion joint with axial deformation prevention according to the present invention.

In the figure: 1. an expansion joint body; 2. a rubber tube; 3. a flange plate; 4. a left inverted Z-shaped fixed block; 5. a right inverted Z-shaped fixed block; 6. a connecting rod; 7. a left sleeve; 8. a right sleeve; 9. a limiting rod; 10. a first buffer spring; 11. a second buffer spring; 12. a limiting groove; 13. and (7) clamping blocks.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the rubber expansion joint with axial deformation prevention of the utility model comprises an expansion joint body 1, wherein the expansion joint body 1 comprises a rubber tube 2, flanges 3 are arranged at both ends of the rubber tube 2, a left inverted Z-shaped fixing block 4 and a right inverted Z-shaped fixing block 5 are respectively arranged at both sides of the top end and the bottom end of the two flanges 3, a connecting rod 6 is respectively arranged between the two left inverted Z-shaped fixing blocks 4 and the two right inverted Z-shaped fixing blocks 5 and at the top end and the bottom end of the rubber tube 2, a left sleeve 7 and a right sleeve 8 are respectively arranged at both ends of one side of the two flanges 3 and at both sides of the rubber tube 2, and a limiting rod 9 is respectively arranged between the two left sleeves 7 and the two right sleeves 8 and at both sides of the rubber tube 2.

Wherein, two ring flanges 3 are fixed mounting respectively at the both ends of rubber tube 2, and two ring flanges 3 all adopt alloy material to make, through two ring flanges 3 that all are equipped with at rubber tube 2 both ends, make it conveniently fix the body on the pipeline.

Wherein, the bottom of two left Z fixed blocks 4 and two right Z fixed blocks 5 of falling falls respectively with the middle part fixed weld of two ring flanges 3 top and low ends, and the screw hole is all seted up to two left Z fixed blocks 4 and two right Z fixed blocks 5 one end of falling, falls Z fixed block 4 and two right Z fixed blocks 5 of falling through two left Z fixed blocks 4 and two right Z fixed blocks 5 of falling that are equipped with on the top of two ring flanges 3 and bottom, makes it be used for two connecting rods 6 of fixed connection pole.

Wherein, the screw thread is carved at the both ends of two connecting rods 6, the both ends of two connecting rods 6 are all fixed between two left Z-shaped fixed blocks 4 and two right Z-shaped fixed blocks 5 of falling through the nut, and the equal fixed cover in outside of two connecting rods 6 is equipped with first buffer spring 10, both ends through two connecting rods 6 are all fixed between two left Z-shaped fixed blocks 4 and two right Z-shaped fixed blocks 5 of falling through the nut, and the first buffer spring 10 that is equipped with is overlapped to outside thereof, make its body when preventing to avoid axial deformation, do not lack the elasticity shock-absorbing capacity of body.

Wherein, two left sleeves 7 and two right sleeves 8 all through screw fixed mounting at the both ends of two ring flanges 3 one sides, and two left sleeves 7 and two right sleeve 8 inside fixed mounting have second buffer spring 11, through the gag lever post that is equipped with between two left sleeves 7 and two right sleeves 8 and the second buffer spring 11 that one end was equipped with, make its body further strengthen the performance of preventing axial deformation and elastic buffer.

Wherein, spacing groove 12 has all been seted up to two left sleeves 7 and two right sleeves 8 both sides, and the both sides at two gag lever post 9 both ends are all fixed and are provided with fixture block 13, and the inside of two spacing grooves 12 is arranged in to four fixture block 13 homogeneous phases, arranges the inside of two spacing grooves 12 in through four fixture block 13 homogeneous phases, makes it carry on spacingly at the position of two left sleeves 7 and two right sleeves 8 insides to two gag lever posts 9, prevents its rotation.

When the rubber pipe fixing device works, the two flange plates 3 are arranged at the two ends of the rubber pipe 2, so that the rubber pipe fixing device is convenient to fix the body on a pipeline; the two left inverted Z-shaped fixed blocks 4 and the two right inverted Z-shaped fixed blocks 5 are arranged at the top ends and the bottom ends of the two flange plates 3 and are used for fixing two connecting rods 6; the two ends of the two connecting rods 6 are fixed between the two left inverted Z-shaped fixing blocks 4 and the two right inverted Z-shaped fixing blocks 5 through nuts, and the first buffer springs 10 are sleeved outside the two left inverted Z-shaped fixing blocks and the two right inverted Z-shaped fixing blocks, so that the body of the connecting rod is prevented from axial deformation and does not lack the elastic buffer performance of the body; the body of the device is further enhanced in the axial deformation prevention and elastic buffering performance by the limiting rods arranged between the two left sleeves 7 and the two right sleeves 8 and the second buffer spring 11 arranged at one end of the body; the four clamping blocks 13 are arranged in the two limiting grooves 12, so that the two limiting rods 9 are limited at the positions inside the two left sleeves 7 and the two right sleeves 8, and the rotation of the two limiting rods is prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber expansion joint with axial deformation prevention comprises an expansion joint body (1), it is characterized in that the expansion joint body (1) comprises a rubber pipe (2), the both ends of rubber tube (2) all are provided with ring flange (3), two the both sides of ring flange (3) top and bottom are provided with respectively that the Z that falls in a left side appears fixed block (4) and the Z that falls in the right side and appear fixed block (5), and the top that lies in rubber tube (2) between two Z that fall in a left side shape fixed block (4) and two the right sides and fall Z shape fixed block (5) all is provided with connecting rod (6), two the both ends that the both ends of ring flange (3) one side lie in rubber tube (2) both sides are provided with left sleeve pipe (7) and right sleeve pipe (8), two the both sides that lie in rubber tube (2) between left side sleeve pipe (7) and two right sleeve pipes (8) all are provided with gag lever post (9).

2. The rubber expansion joint with axial deformation prevention function as claimed in claim 1, wherein two flanges (3) are fixedly installed at two ends of the rubber tube (2), and the two flanges (3) are made of alloy materials.

3. The rubber expansion joint with the function of preventing axial deformation according to claim 1, characterized in that the bottom ends of the two left inverted Z-shaped fixing blocks (4) and the two right inverted Z-shaped fixing blocks (5) are respectively fixedly welded with the middle parts of the top ends and the bottom ends of the two flanges (3), and one ends of the two left inverted Z-shaped fixing blocks (4) and one ends of the two right inverted Z-shaped fixing blocks (5) are respectively provided with a threaded hole.

4. The rubber expansion joint capable of preventing axial deformation according to claim 1, wherein two ends of the two connecting rods (6) are threaded, two ends of the two connecting rods (6) are fixed between two left inverted Z-shaped fixing blocks (4) and two right inverted Z-shaped fixing blocks (5) through nuts, and the outer portions of the two connecting rods (6) are fixedly sleeved with first buffer springs (10).

5. The rubber expansion joint with axial deformation prevention function according to claim 1, wherein the two left sleeves (7) and the two right sleeves (8) are fixedly installed at two ends of one side of the two flange plates (3) through screws, and the second buffer springs (11) are fixedly installed inside the two left sleeves (7) and the two right sleeves (8).

6. The rubber expansion joint capable of preventing axial deformation according to claim 5, wherein two sides of the two left sleeves (7) and two right sleeves (8) are respectively provided with a limiting groove (12), two sides of two ends of the two limiting rods (9) are respectively fixedly provided with a clamping block (13), and the four clamping blocks (13) are respectively arranged inside the two limiting grooves (12).