CN216692660U

CN216692660U - Elastic sealing type corrugated expansion joint

Info

Publication number: CN216692660U
Application number: CN202220182867.3U
Authority: CN
Inventors: 华建春
Original assignee: Wuxi Huabo Metal Corrugated Hose Co ltd
Current assignee: Wuxi Huabo Metal Corrugated Hose Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-07
Anticipated expiration: 2032-01-24

Abstract

The utility model relates to the technical field of expansion joints and discloses an elastic sealing type corrugated expansion joint which comprises two external pipelines, wherein the two external pipelines are both connected with mounting discs through connecting mechanisms, the side walls of the opposite sides of the two mounting discs are fixedly connected with the same expansion joint body, the outer walls of the two mounting discs are both fixedly connected with a plurality of ring plates, the upper ring plate and the lower ring plate are internally inserted with the same limiting rod, and a nut is sleeved on the rod wall of the limiting rod in a threaded manner. Coupling mechanism includes the rand of fixed connection outside pipeline and mounting disc outer wall, two the rand overcoat is equipped with two first clamps and the second clamp of mutual articulated. According to the utility model, the external pipeline and the expansion joint can be conveniently and rapidly disassembled without using bolts, so that the working efficiency of operators is improved, and the problem that the disassembly and the assembly are influenced due to the fact that the bolts and the nuts are corroded is solved.

Description

Elastic sealing type corrugated expansion joint

Technical Field

The utility model relates to the technical field of expansion joints, in particular to an elastic sealing type corrugated expansion joint.

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 fields.

What put forward in patent of patent grant publication No. CN 214305855U opened an elastic buffer formula expansion joint, including the expansion joint body, the upper end external fixed surface of expansion joint body installs the mounting disc, the lower extreme external fixed surface of expansion joint body installs the installation chassis, the outer wall symmetry of mounting disc is provided with installation mechanism. The elastic buffer type expansion joint has the advantages that the expansion joint is reduced to a certain extent in abrasion in use through the arranged installation mechanism, the installation mechanism can be helped to slide through the multiple groups of roller shafts arranged in the installation mechanism, a certain friction force is reduced, the cushion pad can perform a certain buffering effect when the installation mechanism is reset, the elastic buffer type expansion joint is helped to reset through the arranged limiting rod, the operation is simple, the installation is convenient and fast, the hexagonal fixing nut in the limiting rod is connected to the outer wall of the upper end of the supporting rod through the threads, the corresponding fixing effect is realized on the installation of the limiting rod, the good use prospect is brought, the expansion joint and an external pipeline are connected together through the flange plate in the use process, the flange plate needs more bolts to fix, and long time is consumed for dismounting the expansion joint every time, affecting the working efficiency of the operators.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, when an expansion joint is used, the expansion joint and an external pipeline are connected together through a flange plate, the flange plate needs more bolts to fix, and long time is consumed for dismounting the expansion joint every time, so that the working efficiency of operators is influenced, and provides an elastic sealing type corrugated expansion joint.

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

an elastic sealing type corrugated expansion joint comprises two external pipelines,

the two external pipelines are both connected with a mounting disc through a connecting mechanism,

the side walls of the opposite sides of the two mounting discs are fixedly connected with the same expansion joint body,

the outer walls of the two mounting discs are fixedly connected with a plurality of ring plates,

the upper ring plate and the lower ring plate are internally inserted with the same limiting rod,

and a nut is sleeved on the rod wall thread of the limiting rod.

Preferably, coupling mechanism includes the rand of fixed connection outside pipeline and mounting disc outer wall, two the rand overcoat is equipped with two first clamps of mutual articulated and second clamp, the lateral wall fixedly connected with diaphragm of first clamp, the lateral wall fixedly connected with connecting plate of second clamp, the right side wall fixedly connected with connecting cylinder of connecting plate, the inner wall of connecting cylinder rotates through the bearing and is connected with the threaded rod, the pole wall thread bush of threaded rod is equipped with a threaded cylinder, the upper end of threaded cylinder is stretched out the connecting cylinder and is rotated through the pivot and be connected with the commentaries on classics board, two bayonet locks of lower side wall fixedly connected with of commentaries on classics board, two draw-in grooves that match each other with the bayonet lock are seted up to the last lateral wall of diaphragm.

Preferably, the lower side wall of the rotating plate is fixedly connected with a guide rod, and the right side wall of the connecting cylinder is fixedly connected with a guide cylinder matched with the guide rod.

Preferably, the lower extreme of threaded rod stretches out the connecting cylinder and the cover is equipped with the rotary drum, two locating plates of the pole wall fixedly connected with of threaded rod, two constant head tanks that match each other with the locating plate are seted up to the inner wall of rotary drum, the same spring of lateral wall fixedly connected with between threaded rod and the rotary drum, two montants of the last lateral wall fixedly connected with of rotary drum, a plurality of vertical grooves that match each other with the montant are seted up to the lower lateral wall of connecting cylinder.

Preferably, a rotating plate is fixedly connected to the lower side wall of the rotating drum.

Preferably, the both sides of a screw thread section of thick bamboo all fixedly connected with limiting plate, the spacing groove that matches each other with the limiting plate is seted up to the inner wall of connecting cylinder.

Preferably, the lateral wall fixedly connected with sealing washer of outside pipeline, the seal groove that matches each other with the sealing washer is seted up to the lateral wall of mounting disc.

Compared with the prior art, the utility model provides an elastic sealing type corrugated expansion joint which has the following beneficial effects:

this elastic sealing formula ripple expansion joint can be under the condition of not using the bolt, and convenient quick dismouting outside pipeline and expansion joint have improved operating personnel's work efficiency, and have avoided bolt and nut to take place the corrosion, influence the problem of dismouting.

Drawings

FIG. 1 is a schematic structural view of an elastic sealed type bellows expansion joint according to the present invention;

FIG. 2 is a schematic view showing a connection relationship between a first band and a second band of the elastically sealed bellows expansion joint according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: the sealing device comprises an external pipeline 1, an installation disc 2, an expansion joint body 3, a ring plate 4, a limiting rod 5, a nut 6, a clamping ring 7, a first clamping ring 8, a second clamping ring 9, a transverse plate 10, a connecting plate 11, a connecting cylinder 12, a threaded rod 13, a threaded cylinder 14, a rotating plate 15, a clamping pin 16, a clamping groove 17, a guide rod 18, a guide cylinder 19, a rotating cylinder 20, a positioning plate 21, a positioning groove 22, a spring 23, a vertical rod 24, a vertical groove 25, a rotating plate 26, a limiting plate 27, a limiting groove 28, a sealing ring 29 and a sealing groove 30.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Embodiment 1 as shown in fig. 1 to 3, an elastic sealed bellows expansion joint comprises two outer pipes 1, characterized in that,

the two outer pipelines 1 are both connected with a mounting disc 2 through a connecting mechanism, the side wall of each outer pipeline 1 is fixedly connected with a sealing ring 29, the side wall of each mounting disc 2 is provided with a sealing groove 30 matched with the sealing ring 29, the sealing property between the outer pipelines 1 and the mounting disc 2 is increased,

the side walls of the opposite sides of the two mounting discs 2 are fixedly connected with the same expansion joint body 3,

the outer walls of the two mounting discs 2 are fixedly connected with a plurality of ring plates 4,

the upper and lower ring plates 4 are inserted with the same limiting rod 5,

the rod wall thread of the limiting rod 5 is sleeved with a nut 6.

Embodiment 2 is based on embodiment 1 and is shown in fig. 3, the connection mechanism includes a collar 7 fixedly connected to the outer wall of the outer pipe 1 and the mounting plate 2, two first collars 8 and second collars 9 hinged to each other are sleeved outside the two collars 7, a lateral wall of the first collar 8 is fixedly connected with a transverse plate 10, a lateral wall of the second collar 9 is fixedly connected with a connecting plate 11, a right lateral wall of the connecting plate 11 is fixedly connected with a connecting cylinder 12, an inner wall of the connecting cylinder 12 is rotatably connected with a threaded rod 13 through a bearing, a threaded sleeve of a rod wall of the threaded rod 13 is sleeved with a threaded cylinder 14, both sides of the threaded cylinder 14 are fixedly connected with limit plates 27, an inner wall of the connecting cylinder 12 is provided with limit grooves 28 matched with the limit plates 27, the threaded cylinder 14 is prevented from rotating through the mutual matching of the limit plates 27 and the limit grooves 28, the threaded cylinder 14 can only move up and down in the vertical direction, an upper end of the threaded cylinder 14 extends out of the connecting cylinder 12 and is rotatably connected with a rotating plate 15 through a rotating shaft, two bayonet locks 16 are fixedly connected to the lower side wall of the rotating plate 15, and two clamping grooves 17 matched with the bayonet locks 16 are formed in the upper side wall of the transverse plate 10.

The lower side wall of the rotating plate 15 is fixedly connected with a guide rod 18, and the right side wall of the connecting cylinder 12 is fixedly connected with a guide cylinder 19 matched with the guide rod 18, so that the stability of the rotating plate 15 is further improved.

The lower extreme of threaded rod 13 stretches out connecting cylinder 12 and cover and is equipped with rotary drum 20, lower lateral wall fixedly connected with rotor plate 26 of rotary drum 20, make things convenient for rotatory rotary drum 20, two locating plates 21 of the pole wall fixedly connected with of threaded rod 13, two constant head tanks 22 that match each other with locating plate 21 are seted up to the inner wall of rotary drum 20, the same root spring 23 of lateral wall fixedly connected with between threaded rod 13 and the rotary drum 20, two montants 24 of last lateral wall fixedly connected with of rotary drum 20, a plurality of vertical grooves 25 that match each other with montant 24 are seted up to the lower lateral wall of connecting cylinder 12, the stability of threaded rod 13 has been increased.

In the utility model, when in use, the external pipeline 1 and the mounting plate 2 are aligned, the first clamp 8 and the second clamp 9 are sleeved outside the two clamping rings 7, the first clamp 8 and the second clamp 9 are rotated, the rotating plate 15 is rotated to a proper position, the rotating drum 20 is pulled downwards, the rotating drum 20 drives the threaded rod 13 to rotate, the threaded cylinder 14 is driven to move downwards through thread fit, the threaded cylinder 14 drives the rotating plate 15 to move downwards to a proper position, the clamping pin 16 is inserted into the clamping groove 17, the transverse plate 10 and the connecting plate 11 are pressed by the clamping pin 16, the external pipeline 1 and the expansion joint body 3 can be installed after the secondary operation, the expansion joint body 3 can be taken down after the reverse operation, the device can conveniently and quickly disassemble the external pipeline and the expansion joint without using bolts, the working efficiency of operators is improved, and the bolts and nuts are prevented from being rusted, the disassembly and the assembly are influenced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An elastic sealing type corrugated expansion joint comprises two external pipelines (1) and is characterized in that,

the two external pipelines (1) are both connected with a mounting disc (2) through a connecting mechanism,

the side walls of the opposite sides of the two mounting discs (2) are fixedly connected with the same expansion joint body (3),

the outer walls of the two mounting discs (2) are fixedly connected with a plurality of ring plates (4),

the upper ring plate and the lower ring plate (4) are internally inserted with the same limiting rod (5),

and a nut (6) is sleeved on the rod wall thread of the limiting rod (5).

2. An elastic sealed corrugated expansion joint according to claim 1, wherein the connection mechanism comprises a collar (7) fixedly connected with the outer wall of the outer pipe (1) and the mounting plate (2), two collars (7) are sleeved with a first collar (8) and a second collar (9) which are hinged with each other, the side wall of the first collar (8) is fixedly connected with a transverse plate (10), the side wall of the second collar (9) is fixedly connected with a connecting plate (11), the right side wall of the connecting plate (11) is fixedly connected with a connecting cylinder (12), the inner wall of the connecting cylinder (12) is rotatably connected with a threaded rod (13) through a bearing, the rod wall of the threaded rod (13) is sleeved with a threaded cylinder (14), the upper end of the threaded cylinder (14) extends out of the connecting cylinder (12) and is rotatably connected with a rotating plate (15) through a rotating shaft, the lower side wall of the rotating plate (15) is fixedly connected with two clamping pins (16), and the upper side wall of the transverse plate (10) is provided with two clamping grooves (17) matched with the clamping pins (16).

3. An elastically sealed bellows expansion joint according to claim 2, wherein a guide rod (18) is fixedly attached to the lower side wall of the rotary plate (15), and a guide cylinder (19) which is fitted to the guide rod (18) is fixedly attached to the right side wall of the connecting cylinder (12).

4. The elastic sealed corrugated expansion joint as claimed in claim 2, wherein the lower end of the threaded rod (13) extends out of the connecting cylinder (12) and is sleeved with a rotating cylinder (20), the rod wall of the threaded rod (13) is fixedly connected with two positioning plates (21), the inner wall of the rotating cylinder (20) is provided with two positioning grooves (22) matched with the positioning plates (21), the side wall between the threaded rod (13) and the rotating cylinder (20) is fixedly connected with a same spring (23), the upper side wall of the rotating cylinder (20) is fixedly connected with two vertical rods (24), and the lower side wall of the connecting cylinder (12) is provided with a plurality of vertical grooves (25) matched with the vertical rods (24).

5. A resilient sealed bellows expansion joint according to claim 4, wherein a rotating plate (26) is fixedly attached to the lower side wall of the drum (20).

6. The elastic sealing type corrugated expansion joint as claimed in claim 2, wherein both sides of the threaded cylinder (14) are fixedly connected with limit plates (27), and the inner wall of the connecting cylinder (12) is provided with limit grooves (28) matched with the limit plates (27).

7. The elastic sealing type corrugated expansion joint as claimed in claim 1, wherein a sealing ring (29) is fixedly connected to the side wall of the outer pipe (1), and a sealing groove (30) matched with the sealing ring (29) is formed in the side wall of the mounting disc (2).