CN218294888U

CN218294888U - Anti-seismic pressure-resistant expansion joint

Info

Publication number: CN218294888U
Application number: CN202123418345.3U
Authority: CN
Inventors: 姜爱荣
Original assignee: Jiangsu Changfeng Bellows Co ltd
Current assignee: Jiangsu Changfeng Bellows Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-01-13
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a withstand voltage expansion joint of antidetonation, including the expansion joint body, the lateral wall department cover of expansion joint body is equipped with protective housing, protective housing comprises protecting crust anterior segment, protecting crust middle section and protecting crust back end jointly, the protecting crust anterior segment all is connected with the expansion joint body through coupling mechanism with the protecting crust back end, the three device seat that is article font range of the equal fixedly connected with in both sides that the inner wall department in protecting crust middle section is relative is located threely of homonymy be provided with two transfer lines, two jointly between the device seat is adjacent relative one end rotates on the transfer line jointly and is connected with the pivot, two the one end of keeping away from each other on the transfer line rotates respectively to be connected on the lateral wall of the device seat that corresponds position department, is located threely the homonymy the lateral wall department of device seat all runs through and is provided with buffer. The utility model has the advantages of reasonable design, it is good to have pressure resistance, can protect inboard bellows not receive extruded benefit.

Description

Anti-seismic pressure-resistant expansion joint

Technical Field

The utility model relates to an expansion joint technical field especially relates to a withstand voltage expansion joint of antidetonation.

Background

The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on a fixed tube-plate heat exchanger shell has large axial flexibility and is easy to deform, 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, avoiding strength damage, instability damage and tube pull-off damage, and having more types of expansion joints, commonly used structures such as wave shapes, ring plate welding, shell clamping and the like, wherein the wave-shaped expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

In the prior art, when the expansion joint is applied to some special environments, the expansion joint needs to have better pressure resistance, and in order to enhance the pressure resistance of the expansion joint, an anti-seismic pressure-resistant expansion joint is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an anti-seismic pressure-resistant expansion joint.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an antidetonation withstand voltage expansion joint, includes the expansion joint body, the lateral wall department cover of expansion joint body is equipped with protective housing, protective housing comprises protecting crust anterior segment, protecting crust middle section and protecting crust back end jointly, the protecting crust anterior segment all is connected with the expansion joint body through coupling mechanism with the protecting crust back end, the equal fixedly connected with three device seats that are the article font range in the relative both sides in inner wall department in protecting crust middle section, be located the threely of homonymy be provided with two transfer lines jointly between the device seat is adjacent, two relative one end is rotated jointly on the transfer line and is connected with the pivot, two the one end of keeping away from each other on the transfer line rotates respectively and connects on the lateral wall of the device seat that corresponds position department, is located the threely of homonymy the lateral wall department of device seat all runs through and is provided with buffer, wherein two level relative be located homonymy all the cover is equipped with and removes the seat on the lateral wall of device seat.

Preferably, the expansion joint body comprises flanges on two sides and a corrugated pipe in the middle section, and the protective shell comprises a protective shell front section, a protective shell middle section and a protective shell rear section.

Preferably, the connecting device comprises a threaded seat penetrating through the side wall of the protective shell, the threaded seat is connected with a locking screw in a threaded manner, and the tail end of the locking screw is connected with the side wall of the flange on the expansion joint body in a threaded manner.

Preferably, buffer includes that fixed connection runs through the spout that sets up on the device seat lateral wall, fixedly connected with slide bar on the inner wall of spout, the cover is equipped with the spring on the slide bar, sliding connection has the slider on the lateral wall of slide bar, the slider extend to the spout outside and with the lateral wall fixed connection of the removal seat that corresponds the position or with pivot fixed connection.

Preferably, the six device seats are fixedly connected with limiting plates at one ends far away from the inner wall of the middle section of the protective shell.

Preferably, a plurality of said springs are undeformed in an initial state.

The utility model has the following beneficial effects;

the utility model discloses in, mutually support through setting up buffer and connecting device, set up protecting sheathing in the outside of expansion joint body, set up a plurality of buffers and a plurality of transfer lines, device seat in protecting sheathing moreover and mutually support, can greatly increased protecting sheathing's pressure resistance, can protect the bellows on the inboard expansion joint body of protecting sheathing to avoid external extrusion, prevent that the bellows from receiving extrusion deformation damage, the integrated device simple structure is worth promoting.

Drawings

Fig. 1 is a schematic structural view of an anti-seismic pressure-resistant expansion joint provided by the present invention;

fig. 2 is a cross-sectional view of an anti-seismic pressure-resistant expansion joint provided by the present invention;

fig. 3 is a schematic view of the device seat structure of the anti-seismic pressure-resistant expansion joint of the present invention.

In the figure: the expansion joint comprises an expansion joint body 1, a protective shell 2, a protective shell front section 3, a protective shell middle section 4, a protective shell rear section 5, a locking screw 6, a thread seat 7, a device seat 8, a spring 9, a movable seat 10, a transmission rod 11, a rotating shaft 12, a limiting plate 13, a sliding rod 14 and a sliding block 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-3, an antidetonation withstand voltage expansion joint, including expansion joint body 1, the lateral wall department cover of expansion joint body 1 is equipped with protective housing 2, and protective housing 2 comprises protective housing anterior segment 3, protective housing middle section 4 and protective housing back end 5 jointly, and expansion joint body 1 comprises the flange in both sides and the bellows in middle section, and protective housing anterior segment 3, protective housing middle section 4 correspond one side flange, middle section bellows, another flange respectively with protective housing back end 5.

Wherein, protective housing anterior segment 3 all is connected with expansion joint body 1 through coupling mechanism with protective housing back end 5, connecting device is including running through the screw thread seat 7 that sets up in protective housing 2 lateral wall department, threaded connection has locking screw 6 on the screw thread seat 7, the tail end threaded connection of locking screw 6 is in the flange lateral wall department on expansion joint body 1, the equal fixedly connected with three device seat 8 that are the article font range in the relative both sides of inner wall department of protective housing middle section 4, be located and be provided with two transfer lines 11 jointly between the three device seat 8 of homonymy are adjacent, relative one end is rotated jointly on two transfer lines 11 and is connected with pivot 12, the one end of keeping away from each other on two transfer lines 11 rotates respectively and connects on the lateral wall of the device seat 8 of corresponding position department, the lateral wall department of the three device seat 8 that are located the homonymy all runs through and is provided with buffer, wherein two level relative device seat 8 that are located the homonymy all overlap and be equipped with the removal seat 10.

Specifically, buffer includes fixed connection and runs through the spout that sets up on device seat 8 lateral wall, fixedly connected with slide bar 14 on the inner wall of spout, the cover is equipped with spring 9 on the slide bar 14, sliding connection has slider 15 on slide bar 14's the lateral wall, slider 15 extend to the spout outside and with the lateral wall fixed connection of the removal seat 10 that corresponds the position or with pivot 12 fixed connection, six device seats 8 keep away from the equal fixedly connected with limiting plate 13 of one end of 4 inner walls in protecting crust middle section.

It is worth mentioning that the plurality of springs 9 are not deformed in the initial state, so that the safety of the corrugated pipe can be ensured to the maximum extent.

The utility model discloses in, it can come into operation to screw up each locking screw 6 to the protective housing 2 on the expansion joint body 1 outside after going up, protective housing 2 receives external extrusion back, protective housing middle section 4 can be by extrusion deformation, the position that leads to each device seat 8 of inboard changes, can lead to each to remove seat 10 and slide on respective device seat 8, can drive each spring 9 and take place deformation, each transfer line 11 can move, also can take pivot 12 to move the position on the device seat 8 that corresponds, it takes deformation to drive the spring 9 that corresponds, the external pressure can be offset to the at utmost to the deformation of spring 9, can prevent protective housing 2's deformation process, can protect inboard bellows not hurt.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a withstand voltage expansion joint of antidetonation, includes expansion joint body (1), its characterized in that, the lateral wall department cover of expansion joint body (1) is equipped with protecting sheathing (2), protecting sheathing (2) are constituteed jointly by protecting sheathing anterior segment (3), protecting sheathing middle section (4) and protecting sheathing back end (5), protecting sheathing anterior segment (3) and protecting sheathing back end (5) all are connected with expansion joint body (1) through coupling mechanism, the equal fixedly connected with three device seat (8) that are article font and arrange in the both sides that the inner wall department of protecting sheathing middle section (4) is relative is located threely of homonymy device seat (8) are adjacent between be provided with two transfer lines (11), two relative one end rotates jointly on transfer line (11) and is connected with pivot (12), two the one end of keeping away from each other on transfer line (11) rotates respectively and connects on the lateral wall of device seat (8) of corresponding position department, is located threely of homonymy the lateral wall department of device seat (8) all runs through and is provided with buffer, wherein two levels are relative being located the lateral wall of device seat (8) is all overlapped and is equipped with removal seat (10).

2. An earthquake-resistant and pressure-resistant expansion joint according to claim 1, wherein the expansion joint body (1) is composed of flanges at two sides and a corrugated pipe at a middle section, and the protective shell (2) is composed of a protective shell front section (3), a protective shell middle section (4) and a protective shell rear section (5).

3. An earthquake-resistant and pressure-resistant expansion joint according to claim 1, wherein the connecting device comprises a threaded seat (7) penetrating through the side wall of the protective shell (2), a locking screw (6) is connected to the threaded seat (7) in a threaded manner, and the tail end of the locking screw (6) is connected to the flange side wall of the expansion joint body (1) in a threaded manner.

4. An anti-seismic pressure-resistant expansion joint according to claim 1, wherein the buffer device comprises a sliding groove fixedly connected to the side wall of the device seat (8), a sliding rod (14) is fixedly connected to the inner wall of the sliding groove, a spring (9) is sleeved on the sliding rod (14), a sliding block (15) is slidably connected to the side wall of the sliding rod (14), and the sliding block (15) extends out of the sliding groove and is fixedly connected to the side wall of the movable seat (10) at the corresponding position or is fixedly connected to the rotating shaft (12).

5. An earthquake-resistant pressure-resistant expansion joint according to claim 1, wherein the six device seats (8) are fixedly connected with limiting plates (13) at the ends far away from the inner wall of the middle section (4) of the protective shell.

6. An anti-seismic pressure-resistant expansion joint according to claim 4, characterized in that a plurality of said springs (9) are not deformed in the initial state.