CN219282721U

CN219282721U - Impact-resistant wear-resistant expansion joint

Info

Publication number: CN219282721U
Application number: CN202222806065.8U
Authority: CN
Inventors: 黄锐; 蒋秋萍; 黄明远
Original assignee: Jiangsu Baoxinlai Pipeline Complete Equipment Co ltd
Current assignee: Jiangsu Baoxinlai Pipeline Complete Equipment Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-06-30
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses an impact-resistant wear-resistant expansion joint, and relates to the technical field of expansion joints. The expansion joint comprises an expansion joint body, wherein an upper flange is fixed at one end of the expansion joint body, a lower flange is fixed at the other end of the expansion joint body, lugs are fixed at one end of the upper flange and one end of the lower flange, limiting rods are movably connected inside the lugs, a plurality of limiting grooves are fixed on the inner wall of the expansion joint body, limiting strips are connected inside the limiting grooves in a sliding mode, a positioning plate is fixed at one end of each limiting strip, a mounting plate is fixed at one side of each limiting strip, a plurality of rotating shafts are fixed at one side of each mounting plate, and connecting rods are fixed at the inner rings of the rotating shafts. According to the utility model, through the action of the buffer rod, water flows pass through the through holes on the surface of the buffer rod, so that the impact force of the water flow on the inner wall of the expansion joint body can be greatly reduced, and meanwhile, when the water flow drives the buffer rod to move, the rotating shaft at the bottom of the buffer rod can enable the buffer rod to rotate along with the impact of the water flow, and the impact force of the water flow can be further reduced, so that the expansion joint body is protected.

Description

Impact-resistant wear-resistant expansion joint

Technical Field

The utility model belongs to the technical field of expansion joints, and particularly relates to an impact-resistant wear-resistant expansion joint.

Background

Expansion joints refer to flexible elements that effectively function 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 is easy to deform, the thermal expansion difference of the tube and the shell caused by different wall temperatures can be compensated, and the axial load of the tube and the shell is reduced, so that the temperature difference stress of the tube, the tube plate and the shell is reduced, and the damage caused by strength damage, instability damage and tube pull-out damage is avoided. The expansion joint has a plurality of types, and commonly used structures such as wave form, ring plate welding and clamping type are adopted, wherein the wave form expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

When the expansion joint is used, water flow directly impacts the inner wall of the expansion joint, and after a long time, the inner wall of the expansion joint is extremely easy to crack, so that the expansion joint cannot be used, and great potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide an impact-resistant wear-resistant expansion joint, water flows pass through holes in the surface of a buffer rod under the action of the buffer rod, so that the impact force of the water flow on the inner wall of an expansion joint body can be greatly reduced, and meanwhile, when the water flow drives the buffer rod to move, a rotating shaft at the bottom of the buffer rod can enable the buffer rod to rotate along with the impact of the water flow, so that the impact force of the water flow can be further reduced, the expansion joint body is protected, and the problem that the inner wall of the expansion joint is extremely easy to crack after the water flow directly impacts the inner wall of the expansion joint for a long time is solved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an impact-resistant wear-resistant expansion joint, which comprises an expansion joint body, wherein an upper flange is fixed at one end of the expansion joint body, a lower flange is fixed at the other end of the expansion joint body, ear seats are fixed at one end of each of the upper flange and the lower flange, and a limiting rod is movably connected inside each ear seat;

the inner wall of the expansion joint body is fixedly provided with a plurality of limit grooves, limit strips are connected in the limit grooves in a sliding manner, one end of each limit strip is fixedly provided with a positioning plate, and one side of each limit strip is fixedly provided with a mounting plate;

a plurality of rotating shafts are fixed on one side of the mounting plate, a connecting rod is fixed on the inner ring of the rotating shaft, a buffer rod is fixed at one end of the connecting rod, and a plurality of through holes are formed in the surface of the buffer rod;

the locating plate and the limiting groove surfaces are provided with threaded holes, and threaded rods are connected with the inner threads of the threaded holes.

Further, one end of the limiting groove is provided with a positioning hole, and one end of the limiting bar is fixed with a positioning rod.

Further, a positioning block is fixed at one end of the positioning rod, the positioning block is of a spherical structure, and the positioning block is made of rubber materials.

Further, the buffer rod is made of rubber materials.

Further, the limit strip is of a T-shaped structure, and the limit strip is in sliding connection with the limit groove.

The utility model has the following beneficial effects:

according to the utility model, through the action of the buffer rod, water flows pass through the through holes on the surface of the buffer rod, so that the impact force of the water flow on the inner wall of the expansion joint body can be greatly reduced, and meanwhile, when the water flow drives the buffer rod to move, the rotating shaft at the bottom of the buffer rod can enable the buffer rod to rotate along with the impact of the water flow, and the impact force of the water flow can be further reduced, so that the expansion joint body is protected.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the impact-resistant and wear-resistant expansion joint of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model without the limit bar;

FIG. 3 is an enlarged view of a portion of FIG. 2A in accordance with the present utility model;

FIG. 4 is a schematic view of a limit stop structure according to the present utility model;

FIG. 5 is a schematic diagram of a side view structure of a stop bar according to the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

the expansion joint comprises a 1-expansion joint body, a 2-upper flange, a 3-lower flange, a 4-ear seat, a 5-limit rod, a 6-limit groove, a 7-limit bar, an 8-locating plate, a 9-mounting plate, a 10-rotating shaft, an 11-connecting rod, a 12-buffer rod, a 13-through hole, a 14-threaded hole, a 15-threaded rod, a 16-locating hole, a 17-locating rod and a 18-locating block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the utility model discloses an impact-resistant wear-resistant expansion joint, which comprises an expansion joint body 1, wherein an upper flange 2 is fixed at one end of the expansion joint body 1, a lower flange 3 is fixed at the other end of the expansion joint body 1, lugs 4 are fixed at one end of the upper flange 2 and one end of the lower flange 3, and a limiting rod 5 is movably connected inside the lugs 4;

a plurality of limit grooves 6 are fixed on the inner wall of the expansion joint body 1, limit strips 7 are connected inside the limit grooves 6 in a sliding manner, a positioning plate 8 is fixed at one end of each limit strip 7, and a mounting plate 9 is fixed at one side of each limit strip 7;

a plurality of rotating shafts 10 are fixed on one side of the mounting plate 9, a connecting rod 11 is fixed on the inner ring of the rotating shafts 10, a buffer rod 12 is fixed on one end of the connecting rod 11, and a plurality of through holes 13 are formed in the surface of the buffer rod 12;

the surfaces of the locating plate 8 and the limiting groove 6 are respectively provided with a threaded hole 14, and threaded rods 15 are connected inside the threaded holes 14 in a threaded mode.

As shown in fig. 3, one end of the limiting groove 6 is provided with a positioning hole 16, and one end of the limiting bar 7 is fixed with a positioning rod 17.

As shown in fig. 4, one end of the positioning rod 17 is fixed with a positioning block 18, the positioning block 18 has a spherical structure, and the positioning block 18 is made of rubber material.

Wherein the buffer rod 12 is made of a rubber material as shown in fig. 4-5.

As shown in fig. 5, the limit bar 7 has a T-shaped structure, and the limit bar 7 is slidably connected with the limit groove 6.

The working principle of the embodiment is as follows: when the expansion joint is used, the limit bar 7 is inserted into the limit groove 6, the positioning block 18 is clamped into the positioning hole 16, the threaded rod 15 is rotated into the threaded holes 14 on the surfaces of the limit groove 6 and the positioning plate 8, and the limit bar 7 can be fixed.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides an impact-resistant wear-resisting expansion joint, includes expansion joint body (1), its characterized in that: an upper flange (2) is fixed at one end of the expansion joint body (1), a lower flange (3) is fixed at the other end of the expansion joint body (1), ear seats (4) are fixed at one end of each of the upper flange (2) and the lower flange (3), and a limiting rod (5) is movably connected inside each of the ear seats (4);

the expansion joint comprises an expansion joint body (1), and is characterized in that a plurality of limit grooves (6) are fixed on the inner wall of the expansion joint body (1), limit strips (7) are connected inside the limit grooves (6) in a sliding mode, a positioning plate (8) is fixed at one end of each limit strip (7), and a mounting plate (9) is fixed on one side of each limit strip (7);

a plurality of rotating shafts (10) are fixed on one side of the mounting plate (9), a connecting rod (11) is fixed on the inner ring of the rotating shafts (10), a buffer rod (12) is fixed at one end of the connecting rod (11), and a plurality of through holes (13) are formed in the surface of the buffer rod (12);

screw holes (14) are formed in the surfaces of the locating plate (8) and the limiting groove (6), and threaded rods (15) are connected with the screw threads in the screw holes (14).

2. The impact-resistant wear-resistant expansion joint according to claim 1, wherein one end of the limiting groove (6) is provided with a positioning hole (16), and one end of the limiting bar (7) is fixed with a positioning rod (17).

3. The impact-resistant and wear-resistant expansion joint according to claim 2, wherein a positioning block (18) is fixed at one end of the positioning rod (17), the positioning block (18) is of a spherical structure, and the positioning block (18) is made of rubber materials.

4. Impact and wear resistant expansion joint according to claim 1, characterized in that the buffer rod (12) is made of rubber material.

5. Impact-resistant wear-resistant expansion joint according to claim 1, characterized in that the limit strips (7) are of a T-shaped structure, and the limit strips (7) are in sliding connection with the limit grooves (6).