CN217951619U

CN217951619U - Expansion joint suitable for pressure balance bellows

Info

Publication number: CN217951619U
Application number: CN202221239946.XU
Authority: CN
Inventors: 张国兵; 吴旗峰; 郭志军; 王进斌; 林建俊; 张阳
Original assignee: Jiangsu Daming Corrugated Pipe Co ltd
Current assignee: Jiangsu Daming Corrugated Pipe Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-12-02
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses an expansion joint suitable for pressure balance nature bellows, including lower connection pad and expansion joint body, connection pad erection joint is on the bottom position of expansion joint body down, the utility model discloses in, through installing the buffering subassembly symmetry on lower connection pad and the inboard both ends position of last connection pad for can slow down expansion pressure when using, prevent the fracture of expansion joint body or damaged effect, during the installation buffering subassembly, at first, connect the first iron plate of flexible round bar bottom on the connection pad down, connect the second iron plate of flexible round bar upper end on last connection pad, be difficult for droing when making it use, and in the use, when expansion joint body receives the power inflation, under flexible and the elastic action through flexible round bar and buffer spring, can absorb and slow down expansion pressure, prevent that the expansion joint body from easily splitting or damaged after frequently being pressed, the cushioning effect improves greatly, protected the expansion joint body, thereby increase of service life.

Description

Expansion joint suitable for pressure balance bellows

Technical Field

The utility model relates to an expansion joint technical field, concretely relates to expansion joint suitable for pressure balance nature bellows.

Background

Expansion joints are also conventionally called compensators, or expansion joints. The expansion joint is a flexible structure arranged on the shell or the pipeline of the container for compensating additional stress caused by temperature difference and mechanical vibration. 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.

At present, the existing expansion joint for the pressure balance corrugated pipe is buffered by the elasticity of the limit self when in use, and is easy to break or damage after being frequently pressed, so that the service life is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expansion joint suitable for pressure balance nature bellows to propose current expansion joint for pressure balance nature bellows in solving above-mentioned background art, all rely on the elasticity of limit self to cushion during the use, easy fracture or damage after frequent pressurized leads to the problem that life is not high.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an expansion joint suitable for pressure balance nature bellows, includes lower connection pad and expansion joint body, connection pad installation connection is on the bottom position of expansion joint body down, outside a week of connection pad is provided with down spacing piece down, the top of expansion joint body is provided with the connection pad, outside a week of going up the connection pad is provided with spacing piece, the junction of spacing piece and spacing piece is provided with limit pull rod down, the junction both ends of connection pad and last connection pad are provided with buffering subassembly down.

Wherein, the buffering subassembly includes first iron plate, buffer spring, second iron plate and flexible round bar, flexible round bar upper end is provided with the second iron plate, flexible round bar bottom is provided with first iron plate, flexible round bar outside a week is provided with buffer spring, the second iron plate is connected on last connection pad, first iron plate is connected under on the connection pad.

The limiting pull rod comprises a first threaded rod, a second threaded rod, a bolt sleeve and a limiting nut, the second threaded rod is arranged at the upper end of the inner side of the bolt sleeve, the first threaded rod is arranged at the lower end of the inner side of the bolt sleeve, the limiting nut is arranged at the end of the first threaded rod and the end of the second threaded rod, the second threaded rod is connected to the upper limiting block through the limiting nut, and the first threaded rod is connected to the lower limiting block through the limiting nut.

The upper connecting disc comprises a connecting through hole, a rubber cushion and a stainless steel disc, the connecting through hole is formed in one circle of the upper end of the stainless steel disc, the rubber cushion is arranged on the end face of the upper end of the stainless steel disc, and the stainless steel disc is connected to the expansion joint body.

The lower limiting blocks and the upper limiting blocks are the same in size and number, and the lower limiting blocks and the upper limiting blocks are vertically arranged on one line.

The buffer components are arranged in two numbers, and the buffer components are symmetrically arranged at two ends of the inner sides of the lower connecting disc and the upper connecting disc.

The upper limiting block and the upper connecting disc are connected and mounted in a welding mode, and the upper limiting block is uniformly distributed and mounted on the outer side of the upper connecting disc in a circle.

To sum up, owing to adopted above-mentioned technique, the beneficial effects of the utility model are that:

1. the utility model discloses in, through installing the buffering subassembly symmetry on lower connection pad and the inboard both ends position of last connection pad, make and to slow down expansion pressure when using, prevent the fracture of expansion joint body or damaged effect, when installing the buffering subassembly, at first, connect the first iron plate of flexible round bar bottom on lower connection pad, connect the second iron plate of flexible round bar upper end on last connection pad, be difficult for droing when making it use, and in the use, when expansion joint body receives the power inflation, under flexible and the elastic action through flexible round bar and buffer spring, can absorb and slow down expansion pressure, prevent that the expansion joint body from easily breaking or damaged after frequently being compressed, buffering effect improves greatly, the expansion joint body has been protected, thereby increase life.

2. The utility model discloses in, make the effect of being convenient for install and dismantle the change expansion joint body through the limit pull rod structure, during the installation limit pull rod, at first, in the stopper under running through first threaded rod rotation, and use stop nut with the spacing fixed of first threaded rod on the stopper down, it is difficult not hard up when making it use, further in running through the stopper with the second threaded rod rotation, and use stop nut with the second threaded rod spacing fixed on last stopper, later through bolt sleeve with first threaded rod upper end swivelling joint, with second threaded rod lower extreme end swivelling joint, and rotate bolt sleeve and make the two-way atress of first threaded rod and second threaded rod, thereby fixed spacing to the expansion joint body, drop when placing the use, when needs change the expansion joint body, rotate bolt sleeve, make first threaded rod and second threaded rod break away from, thereby be convenient for change the expansion joint body.

Drawings

Fig. 1 is a schematic perspective view of an expansion joint suitable for a pressure-balanced bellows according to the present invention;

fig. 2 is a schematic structural view of a punch assembly of an expansion joint suitable for a pressure-balanced corrugated pipe according to the present invention;

fig. 3 is a schematic view of a structure of a limit pull rod of an expansion joint suitable for a pressure-balanced bellows according to the present invention;

fig. 4 is a schematic view of the connection flange structure of the expansion joint suitable for the pressure-balanced bellows of the present invention.

In the figure: 1. a lower limiting block; 2. a lower connecting disc; 3. an upper limit block; 4. an expansion joint body; 5. an upper connecting disc; 51. a connecting through hole; 52. a rubber cushion; 53. a stainless steel disc; 6. a limiting pull rod; 61. a first threaded rod; 62. a second threaded rod; 63. a bolt bushing; 64. a limit nut; 7. a buffer assembly; 71. a first iron block; 72. a buffer spring; 73. a second iron block; 74. a telescopic round bar.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 one

Referring to fig. 1 and 2, an expansion joint suitable for a pressure balance corrugated pipe comprises a lower connecting disc 2 and an expansion joint body 4, wherein the lower connecting disc 2 is installed and connected at the bottom end position of the expansion joint body 4, a lower limiting block 1 is arranged on the periphery of the outer side of the lower connecting disc 2, an upper connecting disc 5 is arranged at the top end of the expansion joint body 4, an upper limiting block 3 is arranged on the periphery of the outer side of the upper connecting disc 5, a limiting pull rod 6 is arranged at the joint of the lower limiting block 1 and the upper limiting block 3, and buffer assemblies 7 are arranged at two ends of the joint of the lower connecting disc 2 and the upper connecting disc 5. When the device is used, firstly, the device is moved to a designated place and is further connected and installed with an external pressure balance corrugated pipe through the upper connecting disc 5 and the lower connecting disc 2 at the upper end of the expansion joint body 4, when need change the expansion joint body 4 in the middle of upper land 5 and lower land 2 inboard, rotate the bolt sleeve 63 in the spacing pull rod 6, make first threaded rod 61 and second threaded rod 62 break away from, thereby be convenient for change expansion joint body 4, and in the use, buffer assembly 7 and effectual buffering inflation pressure through upper land 5 and lower land 2 inboard both ends, during the buffering, under flexible and the elastic action through flexible round bar 74 and buffer spring 72, can absorb and slow down inflation pressure, prevent that the expansion joint body is fragile or damaged after frequently being compressed, the buffering effect improves greatly, expansion joint body 4 has been protected, thereby increase of service life.

The utility model discloses in, buffering subassembly 7 is provided with two altogether, and buffering subassembly 7 symmetry is installed on the inboard both ends position of lower connection pad 2 and upper connection pad 5, buffering subassembly 7 includes first iron plate 71, buffer spring 72, second iron plate 73 and flexible pole 74, flexible pole 74 upper end is provided with second iron plate 73, flexible pole 74 bottom is provided with first iron plate 71, flexible pole 74 outside a week is provided with buffer spring 72, second iron plate 73 is connected on upper connection pad 5, first iron plate 71 is connected on lower connection pad 2, during installation buffering subassembly 7, at first, connect the first iron plate 71 of flexible pole 74 bottom on lower connection pad 2, second iron plate 73 of flexible pole 74 upper end is connected on upper connection pad 5, be difficult for droing when making it use, and in the use, when expansion joint body 4 receives the power inflation, under the flexible and the elastic action through flexible pole 74 and buffer spring 72, can absorb and slow down expansion pressure, buffering effect improves greatly, expansion joint body 4 has been protected, thereby increase service life.

The utility model discloses in, the big or small quantity of spacing piece 1 and last spacing piece 3 is the same down, and just down spacing piece 1 and last spacing piece 3 be perpendicular on an online, and through the big or small quantity of spacing piece 1 and last spacing piece 3 down the same, and down spacing piece 1 and last spacing piece 3 be perpendicular on an online, make its be convenient for erection joint spacing pull rod 6 for connect more smoothly.

The working principle is as follows: when using the device, at first, remove the device to appointed place, further upper land 5 and lower land 2 through expansion joint body 4 upper end are connected with the balanced bellows of external pressure and are installed, when need change upper land 5 and the expansion joint body 4 in the middle of lower land 2 inboard, rotate the bolt sleeve 63 among the spacing pull rod 6, make first threaded rod 61 and second threaded rod 62 break away from, thereby be convenient for change expansion joint body 4, and in the use, through the buffering subassembly 7 and the effectual buffering expansion pressure at the inboard both ends of upper land 5 and lower land 2, during the buffering, under flexible and the elastic action through flexible pole 74 and buffer spring 72, can absorb and slow down expansion pressure, buffering effect improves greatly, expansion joint body 4 has been protected, thereby increase life.

Example two

Referring to fig. 1 and 3, in an expansion joint suitable for a pressure balance corrugated pipe, in this embodiment, compared with the first embodiment, the limit pull rod 6 includes a first threaded rod 61, a second threaded rod 62, a bolt sleeve 63 and a limit nut 64, the second threaded rod 62 is disposed at the upper end of the inner side of the bolt sleeve 63, the first threaded rod 61 is disposed at the lower end of the inner side of the bolt sleeve 63, the limit nuts 64 are disposed at the end heads of the first threaded rod 61 and the second threaded rod 62, the second threaded rod 62 is connected to the upper limit block 3 through the limit nut 64, and the first threaded rod 61 is connected to the lower limit block 1 through the limit nut 64.

The working principle is as follows: when installing spacing pull rod 6, at first, in the rotatory lower stopper 1 that runs through of first threaded rod 61, and use stop nut 64 with the spacing fixed on lower stopper 1 of first threaded rod 61, it is difficult not hard up when making its use, further in the rotatory upper stopper 3 that runs through of second threaded rod 62, and use stop nut 64 with the spacing fixed on upper stopper 3 of second threaded rod 62, later with first threaded rod 61 upper end swivelling joint through bolt sleeve 63, with second threaded rod 62 lower extreme end swivelling joint, and rotate bolt sleeve 63 and make first threaded rod 61 and the two-way atress of second threaded rod 62, thereby to the fixed spacing of expansion joint body 4, drop when placing the use, when needing to change expansion joint body 4, rotate bolt sleeve 63, make first threaded rod 61 and second threaded rod 62 break away from, thereby be convenient for change expansion joint body 4.

EXAMPLE III

Referring to fig. 1 and 4, in an expansion joint suitable for a pressure balance corrugated pipe, compared with the second embodiment, in the present embodiment, the upper limiting block 3 and the upper connecting disc 5 are connected and installed in a welding manner, and the upper limiting block 3 is uniformly distributed and installed on a circumference of the outer side of the upper connecting disc 5, the upper connecting disc 5 includes a connecting through hole 51, a rubber cushion 52 and a stainless steel disc 53, the connecting through hole 51 is arranged on a circumference of the upper end of the stainless steel disc 53, the rubber cushion 52 is arranged on the end face of the upper end of the stainless steel disc 53, and the stainless steel disc 53 is connected on the expansion joint body 4.

The working principle is as follows: when installing connection pad 5, at first, will go up the even equidistance welding of spacing piece 3 on stainless steel dish 53 outside a week position, so that install spacing pull rod 6 through last spacing piece 3, connect the installation through the welded mode like this, make more firm difficult the droing when using, and connect through-hole 51 through stainless steel dish 53 upper end a week and be convenient for use the bolt to run through the fastening on outside pressure balance nature bellows, and when being connected with pressure balance nature bellows, make its connection inseparabler firm through the rubber cushion 52 of stainless steel dish 53 upper end terminal surface, have stronger sealed effect simultaneously.

The above, only be the concrete implementation of the preferred embodiment 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, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides an expansion joint suitable for pressure balance nature bellows, includes lower connection pad (2) and expansion joint body (4), its characterized in that: lower connection pad (2) erection joint is on the bottom position of expansion joint body (4), outside a week of lower connection pad (2) is provided with down spacing piece (1), the top of expansion joint body (4) is provided with connection pad (5), outside a week of going up connection pad (5) is provided with spacing piece (3) up, the junction of spacing piece (1) and spacing piece (3) is provided with limit pull rod (6) down, the junction both ends of lower connection pad (2) and last connection pad (5) are provided with buffering subassembly (7).

2. An expansion joint suitable for use in a pressure balanced bellows according to claim 1 wherein: buffer unit (7) include first iron plate (71), buffer spring (72), second iron plate (73) and flexible round bar (74), flexible round bar (74) upper end is provided with second iron plate (73), flexible round bar (74) bottom is provided with first iron plate (71), flexible round bar (74) outside a week is provided with buffer spring (72), second iron plate (73) are connected on last connection pad (5), first iron plate (71) are connected under on connection pad (2).

3. An expansion joint suitable for use in a pressure balanced bellows as claimed in claim 1, wherein: spacing pull rod (6) include first threaded rod (61), second threaded rod (62), bolt sleeve (63) and stop nut (64), bolt sleeve (63) inboard upper end is provided with second threaded rod (62), bolt sleeve (63) inboard lower extreme is provided with first threaded rod (61), first threaded rod (61) and second threaded rod (62) end department all are provided with stop nut (64), second threaded rod (62) are connected on last stop block (3) through stop nut (64), first threaded rod (61) are connected on lower stop block (1) through stop nut (64).

4. An expansion joint suitable for use in a pressure balanced bellows as claimed in claim 1, wherein: go up connection pad (5) including connect through hole (51), rubber cushion (52) and stainless steel dish (53), stainless steel dish (53) upper end a week is provided with connect through hole (51), stainless steel dish (53) upper end terminal surface is provided with rubber cushion (52), stainless steel dish (53) are connected on expansion joint body (4).

5. An expansion joint suitable for use in a pressure balanced bellows as claimed in claim 1, wherein: the lower limiting block (1) and the upper limiting block (3) are the same in size and number, and the lower limiting block (1) and the upper limiting block (3) are vertically arranged on the same line.

6. An expansion joint suitable for use in a pressure balanced bellows as claimed in claim 1, wherein: the buffer assemblies (7) are arranged in two, and the buffer assemblies (7) are symmetrically arranged at two ends of the inner sides of the lower connecting disc (2) and the upper connecting disc (5).

7. An expansion joint suitable for use in a pressure balanced bellows as claimed in claim 1, wherein: the upper limiting block (3) and the upper connecting disc (5) are connected and mounted in a welding mode, and the upper limiting block (3) is uniformly distributed and mounted on the outer side of the upper connecting disc (5) in a circle.