CN211821250U

CN211821250U - Leakproof casing expansion joint

Info

Publication number: CN211821250U
Application number: CN201921774968.4U
Authority: CN
Inventors: 蒋小进; 李玉雁
Original assignee: Jiangsu Yuntong Expansion Joint Manufacturing Co ltd
Current assignee: Jiangsu Yuntong Expansion Joint Manufacturing Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-10-30
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a leakage-proof sleeve type expansion joint, which comprises a fixed sleeve and a connecting sleeve, wherein one end of the fixed sleeve is connected with one end of the connecting sleeve in a sleeved manner, the fixed sleeve is sleeved with a fixed ring, the connecting sleeve is sleeved with a connecting ring, and a connecting bolt is arranged between the fixed ring and the connecting ring in a penetrating manner; the fixing ring on the fixing sleeve is connected with the connecting ring of the connecting sleeve through the connecting bolt, and the connecting bolt can be fastened when the connecting sleeve is used, so that the stable effect of connection is improved; through the atmospheric pressure control at the atmospheric pressure intracavity, drive the backup pad and support the control, and under the backup pad drives the support of movable rod, can support sealed backing plate and carry out inseparable bonding, sealed backing plate adopts high temperature resistant rubber can guarantee sealed effect, and at sealed backing plate size with fixed sleeve's size matches the setting, keeps its sealed effect.

Description

Leakproof casing expansion joint

Technical Field

The utility model relates to an expansion joint technical field specifically is a prevent leaking bushing type expansion joint.

Background

Expansion joints are also conventionally called compensators, or expansion joints. It is composed of bellows (an elastic element) and its working body, end pipe, support, flange and guide pipe. The expansion joint is a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses due to temperature differences and mechanical vibrations. The effective telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. And can also be used for noise reduction and vibration reduction. In order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the heating pipeline is heated, a compensator is required to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure are reduced.

As the expansion joint is an elastic compensation element capable of freely stretching, the expansion joint has the advantages of reliable work, good performance, compact structure and the like, and is widely applied to chemical, metallurgical, nuclear and other departments. There are various forms of expansion joints used in containers, with U-shaped expansion joints being most widely used in terms of corrugated shapes, followed by omega-and C-shapes, etc. The expansion joints used in the pipelines are classified into universal joints, pressure-balanced joints, hinge joints, universal joints, and the like in terms of structural compensation.

The convenience of use should also be guaranteed when the sealed effect of in-process assurance that has used to current expansion joint, but only utilize sealed pad and bolt to strengthen sealed effect when current expansion joint uses, but sealed effect is not good, can cause mechanical damage at the in-process of dismantling simultaneously, causes sealed effect not good simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent leaking bushing type expansion joint to solve among the above-mentioned background art current expansion joint and also should guarantee the convenience of using when guaranteeing sealed effect at the in-process that uses, but only utilize sealed the pad and strengthen sealed effect with the bolt when current expansion joint uses, but sealed effect is not good, can cause mechanical damage at the in-process of dismantling simultaneously, causes sealed effect not good simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the leakproof sleeve type expansion joint comprises a fixing sleeve and a connecting sleeve, wherein one end of the fixing sleeve is sleeved and connected with one end of the connecting sleeve, a fixing ring is sleeved and installed on the fixing sleeve, a connecting ring is sleeved and installed on the connecting sleeve, and a connecting bolt is arranged between the fixing ring and the connecting ring in a penetrating manner; the fixing ring on the fixing sleeve is connected with the connecting ring of the connecting sleeve through the connecting bolt, the connecting bolt can be fastened when the fixing sleeve is used, and the stable effect of connection is improved.

The outer wall of the fixed sleeve is provided with a sealing mechanism, the inner wall of the fixed sleeve is provided with a sealing connecting block, one end of the connecting sleeve is provided with a sealing block, and the sealing block is connected with the sealing connecting block; the one end that fixed sleeve inner wall was installed sealed connecting block and is installed sealed block with connecting sleeve and be connected, carries out inseparable bonding in inside and is in the same place, can guarantee inside sealed effect.

The sealing mechanism comprises a supporting frame, the supporting frame is fixedly supported and connected with the outer wall of the fixed sleeve, an elastic supporting mechanism is installed in the supporting frame and supported to provide supporting tension, a sealing cushion plate is installed at the bottom of the elastic supporting mechanism and connected with the outer wall of the connecting sleeve, the sealing cushion plate is tightly connected with the outer wall of the connecting sleeve under the supporting condition of the elastic supporting mechanism, the elastic supporting mechanism comprises a supporting cavity which is used for supporting, a supporting plate is installed in the supporting cavity and can move up and down, an air pressure cavity is arranged above the supporting plate, a supporting spring rod is installed in the air pressure cavity and connected with the supporting plate, a movable rod is installed below the supporting plate and used for supporting and controlling the sealing cushion plate, the bottom of movable rod runs through support the chamber, the bolt board is installed to the bottom of movable rod, the bolt board with the sealing backing plate is connected, and at the atmospheric pressure control of atmospheric pressure intracavity, drive the backup pad and support control, and under the support that the backup pad drove the movable rod, can support the sealing backing plate and carry out inseparable bonding.

Preferably, the sealing pad plate is made of high-temperature-resistant rubber, the sealing pad plate penetrates through the fixing sleeve, and the size of the sealing pad plate is matched with that of the fixing sleeve; the sealing backing plate adopts high temperature resistant rubber can guarantee sealed effect, and sealing the gasket plate size with fixed sleeve's size matches the setting, keeps its sealed effect.

Preferably, the fixing sleeve and the connecting sleeve are made of aluminum alloy materials; the aluminum alloy material has corrosion-resistant effect, and is lightweight, so that the using effect is improved, and the service life is prolonged.

Preferably, the top of the air pressure cavity is provided with a one-way air pressure valve; the one-way air pressure valve at the top of the air pressure cavity is controlled in a one-way mode, so that the air pressure stability of the air pressure cavity can be improved, the air pressure cavity can be inflated when the air pressure cavity is used, and the control sealing cushion plate is connected in a sealing mode.

Preferably, the connecting bolt is made of metal, and a fixing nut is installed at one end of the connecting bolt, so that the connecting effect is improved.

Preferably, a sealing rubber gasket is arranged on one side of the sealing block adjacent to the sealing connecting block, and the sealing block and the sealing connecting block are both made of anti-corrosion metal materials; the sealing rubber mat is connected in a sealing mode, the sealing blocks are improved, the sealing connecting blocks are connected through the sealing rubber mat, and the sealing effect is improved.

The utility model provides a prevent leaking bushing type expansion joint possesses following beneficial effect:

(1) the utility model discloses a retainer plate on the fixing sleeve is connected through connecting bolt with the connecting sleeve clamping ring, can fasten connecting bolt when using, has improved the stable effect of connecting, and the fixing sleeve inner wall is installed sealing connection piece and is installed sealed piece with the one end of connecting sleeve and be connected, carries out inseparable bonding in inside and be in the same place, can guarantee the sealed effect of inside, and elastic support mechanism supports, provides the tension of supporting, sealed backing plate is installed to elastic support mechanism's bottom, and sealed backing plate and connecting sleeve's outer wall connection will seal the inseparable and connecting sleeve's outer wall connection of backing plate under the condition that elastic support mechanism supported.

(2) The utility model discloses an air pressure control in the atmospheric pressure intracavity drives the backup pad and supports control, and under the support of backup pad drive movable rod, can support sealed backing plate and carry out inseparable bonding, sealed backing plate adopts high temperature resistant rubber can guarantee sealed effect, and at sealed backing plate size with fixed sleeve's size matches the setting, keeps its sealed effect.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the sealing mechanism of the present invention;

fig. 4 is a schematic view of the elastic support mechanism of the present invention.

In the figure: 1. a connecting sleeve; 2. fixing the sleeve; 3. a connecting ring; 4. a connecting bolt; 5. a sealing mechanism; 6. a stationary ring; 7. sealing the connecting block; 8. a sealing block; 9. a support frame; 10. sealing the base plate; 11. an elastic support mechanism; 12. a support cavity; 13. a pneumatic chamber; 14. a support spring rod; 15. a one-way air pressure valve; 16. a movable rod; 17. and a support plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the leakproof sleeve type expansion joint comprises a fixed sleeve 2 and a connecting sleeve 1, wherein one end of the fixed sleeve 2 is sleeved and connected with one end of the connecting sleeve 1, a fixed ring 6 is sleeved and installed on the fixed sleeve 2, a connecting ring 3 is sleeved and installed on the connecting sleeve 1, and a connecting bolt 4 is arranged between the fixed ring 6 and the connecting ring 3 in a penetrating manner; the fixing ring 6 on the fixing sleeve 2 is connected with the connecting ring 3 of the connecting sleeve 1 through the connecting bolt 4, the connecting bolt 4 can be fastened when the fixing sleeve is used, and the stable effect of connection is improved.

The outer wall of the fixed sleeve 2 is provided with a sealing mechanism 5, the inner wall of the fixed sleeve 2 is provided with a sealing connecting block 7, one end of the connecting sleeve 1 is provided with a sealing block 8, and the sealing block 8 is connected with the sealing connecting block 7; the inner wall of the fixed sleeve 2 is provided with a sealing connecting block 7, one end of the fixed sleeve 1 is provided with a sealing block 8, the sealing blocks are connected, tight adhesion is carried out in the inner part, and the sealing effect in the inner part can be guaranteed.

The sealing mechanism 5 comprises a supporting frame 9, the supporting frame 9 is fixedly supported, the supporting frame 9 is connected with the outer wall of the fixed sleeve 2, an elastic supporting mechanism 11 is installed in the supporting frame 9, the elastic supporting mechanism 11 is used for supporting and providing supporting tension, a sealing cushion plate 10 is installed at the bottom of the elastic supporting mechanism 11, the sealing cushion plate 10 is connected with the outer wall of the connecting sleeve 1, the sealing cushion plate 10 is tightly connected with the outer wall of the connecting sleeve 1 under the supporting condition of the elastic supporting mechanism 11, the elastic supporting mechanism 11 comprises a supporting cavity 12, the supporting cavity 12 is used for supporting, a supporting plate 17 is installed in the supporting cavity 12, the supporting plate 17 can move up and down, an air pressure cavity 13 is arranged above the supporting plate 17, a supporting spring rod 14 is installed in the air pressure cavity 13, the supporting spring rod 14 is used for connecting the supporting plate 17, and a movable rod 16 is installed below the supporting plate 17, the movable rod 16 supports and controls the sealing cushion plate 10, the bottom of the movable rod 16 penetrates through the supporting cavity 12, the bottom of the movable rod 16 is provided with a bolt plate 18, the bolt plate 18 is connected with the sealing cushion plate 10, the support plate 17 is driven to support and control under the air pressure control in the air pressure cavity 13, and the sealing cushion plate 10 can be supported and tightly bonded under the support of the support plate 17 driving the movable rod 16.

The sealing pad plate 10 is made of high-temperature-resistant rubber, the sealing pad plate 10 penetrates through the fixing sleeve 2, and the size of the sealing pad plate 10 is matched with that of the fixing sleeve 2; the sealing pad plate 10 is made of high-temperature-resistant rubber, so that the sealing effect can be guaranteed, and the sealing pad plate 10 is matched with the fixing sleeve 2 in size to keep the sealing effect. The fixed sleeve 2 and the connecting sleeve 1 are made of aluminum alloy materials; the aluminum alloy material has corrosion-resistant effect, and is lightweight, so that the using effect is improved, and the service life is prolonged. The top of the air pressure cavity 13 is provided with a one-way air pressure valve 15; the one-way air pressure valve 15 at the top of the air pressure cavity 13 is controlled in a one-way mode, so that the air pressure stability of the air pressure cavity 13 can be improved, the air pressure cavity 13 can be inflated when the air pressure sealing cushion plate is used, and the sealing cushion plate 10 is controlled to be connected in a sealing mode. Connecting bolt 4 adopts the metal material, and fixation nut is installed to connecting bolt 4's one end, has improved the effect of connecting. A sealing rubber gasket is arranged on one side of the sealing block 8 adjacent to the sealing connecting block 7, and the sealing block 8 and the sealing connecting block 7 are both made of anti-corrosion metal materials; sealed cushion carries out sealing connection, improves sealed piece 8 and is connected through sealed cushion with sealing connection piece 7, has improved sealed effect.

It should be noted that, prevent leaking bushing type expansion joint, in operation, to rushing into atmospheric pressure in supporting cavity 12, guarantee the supporting effect who supports spring beam 14, utilize atmospheric pressure to support backup pad 17, and drive movable rod 16 and carry out the activity and support, sealed backing plate 10 can seal the support, with the inseparable bonding of sealed backing plate 10 at the outer wall of connecting sleeve 1, sealed effect has been improved, 2 inner walls of fixed sleeve install sealed connecting block 7 and connecting sleeve 1's one end simultaneously and install sealed piece 8 and be connected, carry out inseparable bonding together in inside, can guarantee inside sealed effect, sealed effect has been improved, simultaneously reduce the atmospheric pressure in atmospheric pressure chamber 13 when dismantling, can reduce the pressure of sealed backing plate 10, the effect of use is improved.

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. The utility model provides a prevent leaking bushing type expansion joint, includes fixed sleeve (2) and connecting sleeve (1), its characterized in that: one end of the fixed sleeve (2) is sleeved and connected with one end of the connecting sleeve (1), a fixed ring (6) is sleeved and installed on the fixed sleeve (2), a connecting ring (3) is sleeved and installed on the connecting sleeve (1), and a connecting bolt (4) penetrates between the fixed ring (6) and the connecting ring (3);

a sealing mechanism (5) is installed on the outer wall of the fixed sleeve (2), a sealing connecting block (7) is installed on the inner wall of the fixed sleeve (2), a sealing block (8) is installed at one end of the connecting sleeve (1), and the sealing block (8) is connected with the sealing connecting block (7);

sealing mechanism (5) are including carriage (9), install elastic support mechanism (11) in carriage (9), sealed backing plate (10) are installed to the bottom of elastic support mechanism (11), elastic support mechanism (11) are including supporting chamber (12), install backup pad (17) in supporting chamber (12), the top of backup pad (17) is atmospheric pressure chamber (13), install supporting spring pole (14) in atmospheric pressure chamber (13), movable rod (16) are installed to the below of backup pad (17), run through the bottom of movable rod (16) support chamber (12), bolt board (18) are installed to the bottom of movable rod (16), bolt board (18) with sealed backing plate (10) are connected.

2. A leak resistant telescopic expansion joint according to claim 1, characterized in that: the sealing pad (10) is made of high-temperature-resistant rubber, the sealing pad (10) penetrates through the fixing sleeve (2), and the size of the sealing pad (10) is matched with that of the fixing sleeve (2).

3. A leak resistant telescopic expansion joint according to claim 1, characterized in that: the fixed sleeve (2) and the connecting sleeve (1) are made of aluminum alloy materials.

4. A leak resistant telescopic expansion joint according to claim 1, characterized in that: the top of the air pressure cavity (13) is provided with a one-way air pressure valve (15).

5. A leak resistant sleeve expansion joint as set forth in claim 4 wherein: the connecting bolt (4) is made of metal, and a fixing nut is installed at one end of the connecting bolt (4).

6. A leak resistant telescopic expansion joint according to claim 1, characterized in that: the sealing rubber gasket is installed on one side, adjacent to the sealing connecting block (7), of the sealing block (8), and the sealing block (8) and the sealing connecting block (7) are made of anti-corrosion metal materials.