Anti-deformation structure of expansion joint

Abstract

The utility model discloses an expansion joint anti-deformation structure in the technical field of expansion joints, which comprises an expansion joint body, flange plates are fixedly arranged on two sides of the expansion joint body, a plurality of groups of mounting blocks are fixedly arranged on the outer sides of the two groups of flange plates, mounting rods are arranged between the adjacent mounting blocks, and connecting rods are movably inserted into the inner sides of mounting grooves. A threaded rod is fixedly arranged on the outer side of the connecting block, a butterfly nut is arranged on the outer side of the threaded rod and located on the outer side of the mounting block in a threaded sleeving mode, and a first spring is arranged on the inner side of the mounting groove and located on the inner side of the connecting rod. By means of the simple installation structure, deformation of the expansion joint is prevented, meanwhile, the original elastic buffering performance of the expansion joint can be guaranteed, normal use of the expansion joint is guaranteed, meanwhile, the first spring is conveniently detached and replaced subsequently, use is quite flexible and convenient, use convenience is improved, the practical effect is good, and the expansion joint is worthy of being popularized and used in the existing market.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and more specifically, to an expansion joint anti-deformation structure. Background Technology

[0002] An expansion joint is a flexible element that effectively compensates for axial deformation. For example, expansion joints welded to the shell of a fixed tubesheet heat exchanger have high axial flexibility and are easily deformable. They can compensate for the thermal expansion difference between the tubes and the shell due to different wall temperatures, reducing their axial load and thus reducing the thermal stress on the tubes, tubesheet, and shell, preventing strength failure, instability failure, and tube pull-out failure. There are many types of expansion joints, commonly including corrugated, welded ring plate, and clamp-type structures. Corrugated expansion joints are the most widely used, while welded ring plate expansion joints are only suitable for atmospheric or low-pressure applications.

[0003] To prevent axial deformation of expansion joints during use, existing expansion joints generally have anti-deformation structures on their outer side. However, in actual use, the anti-deformation structure limits the expansion joint, which reduces the elastic buffering performance of the expansion joint itself, thus affecting its normal use.

[0004] In view of this, we propose an expansion joint anti-deformation structure. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide an expansion joint anti-deformation structure to solve the problem mentioned in the background art that the existing expansion joint anti-deformation structure affects its elastic buffering performance, thereby affecting normal operation.

[0007] 2. Technical Solution

[0008] An expansion joint anti-deformation structure includes an expansion joint body. Flanges are fixedly installed on both sides of the expansion joint body. Multiple sets of mounting blocks are fixedly installed on the outer sides of both sets of flanges. An installation rod is installed between adjacent mounting blocks. Mounting grooves are formed at both ends of the mounting rods. A connecting rod is movably inserted into the inner side of each mounting groove. The connecting rod movably passes through the mounting groove and extends to the outer side. A connecting block is fixedly installed on the outer side of the connecting rod located outside the mounting groove. A threaded rod is fixedly installed on the outer side of the connecting block. The threaded rod movably passes through the mounting block and extends to the outer side. A wing nut is threaded onto the outer side of the threaded rod located outside the mounting block. A first spring is installed on the inner side of the mounting groove located inside the connecting rod.

[0009] Preferably, mounting plates are fixedly provided at both ends of the first spring.

[0010] Preferably, a push block is fixedly provided on the outer side of the connecting rod.

[0011] Preferably, a limiting plate is provided on the outer side of the mounting rod, and two sets of locking blocks are fixedly provided on the inner side of the limiting plate. A locking groove for docking locking blocks is opened on the upper side of the push block.

[0012] Preferably, an installation cylinder is fixedly provided on the outer side of the installation rod, and a movable rod is movably inserted into the inner side of the installation cylinder. The movable rod movably passes through the installation cylinder and extends to the outer side, and the outer end of the movable rod located on the outer side of the installation cylinder is fixedly connected to the limiting plate. A second spring is provided on the inner side of the installation cylinder, one end of the second spring is connected to the installation cylinder, and the other end of the second spring is connected to the movable rod.

[0013] Preferably, a handle is fixedly provided on the outer side of the limiting plate.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. This utility model, by setting up a mounting block, mounting rod, connecting rod, threaded rod, wing nut, first spring, mounting plate and other mechanisms, and through the cooperation of each mechanism, can prevent the expansion joint from deforming while ensuring the original elastic buffering performance of the expansion joint, thereby ensuring its normal use. At the same time, it is also convenient to disassemble and replace the first spring later, making it very flexible and convenient to use and improving ease of use.

[0017] 2. This utility model, by setting up a limiting plate, a locking block, a pushing block, an installation cylinder, a movable rod, a second spring and other mechanisms, and through the cooperation of each mechanism, makes it easy to position the connecting rod, thereby facilitating the disassembly of the installation rod and the connecting rod, further improving the ease of replacing the first spring and making it convenient for operators to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram showing the disassembled anti-deformation structure of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] The following are the labels in the diagram: 1 Expansion joint body, 2 Flange, 3 Mounting block, 4 Mounting rod, 5 Mounting groove, 6 Connecting rod, 7 Connecting block, 8 Threaded rod, 9 Butterfly nut, 10 First spring, 11 Mounting plate, 12 Limiting plate, 13 Locking block, 14 Push block, 15 Locking groove, 16 Mounting cylinder, 17 Movable rod, 18 Second spring, 19 Handle. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] An expansion joint anti-deformation structure includes an expansion joint body 1, with flanges 2 fixedly installed on both sides of the expansion joint body 1. Multiple sets of mounting blocks 3 are fixedly installed on the outer sides of both sets of flanges 2. Mounting rods 4 are installed between adjacent mounting blocks 3. Mounting grooves 5 are opened through both ends of the mounting rods 4. Connecting rods 6 are movably inserted into the inner side of the mounting grooves 5, extending outwards through the mounting grooves 5. A connecting block 7 is fixedly installed on the outer side of the connecting rod 6 located outside the mounting grooves 5. A threaded rod 8 is fixedly installed on the outer side of the connecting block 7, extending outwards through the mounting blocks 3. A wing nut 9 is threaded onto the outer side of the threaded rod 8 located outside the mounting blocks 3. A first spring 10 is installed on the inner side of the mounting grooves 5 located inside the connecting rod 6. By fitting the wing nut 9 onto the outer side of the threaded rod 8, one end of the connecting rod 6 can be connected to the mounting block 3, while the other end of the connecting rod 6 is inserted into the mounting grooves 5. At this time, the first spring 10 is compressed and deformed, thus ensuring subsequent buffering performance.

[0028] Specifically, mounting plates 11 are fixedly provided at both ends of the first spring 10. By providing mounting plates 11 at both ends of the first spring 10, it is convenient to connect the first spring 10 to the mounting groove 5 and the connecting rod 6, and it is also convenient to disassemble and replace the first spring 10 in the future.

[0029] Furthermore, a push block 14 is fixedly provided on the outside of the connecting rod 6. By providing the push block 14, the connecting rod 6 can be easily pushed into the mounting groove 5, thereby improving the ease of operation.

[0030] It is worth noting that a limiting plate 12 is provided on the outer side of the mounting rod 4, and two sets of locking blocks 13 are fixedly provided on the inner side of the limiting plate 12. The upper side of the push block 14 is provided with a locking groove 15 for engaging the locking blocks 13. The locking blocks 13 are movably engaged in the locking groove 15, which facilitates the fixing of the position of the connecting rod 6, making it easy to remove the mounting rod 4 and the connecting rod 6 from between the two sets of mounting blocks 3, further improving the ease of disassembling the mounting rod 4 and the connecting rod 6.

[0031] It is worth noting that an installation cylinder 16 is fixedly installed on the outside of the installation rod 4, and a movable rod 17 is movably inserted into the inside of the installation cylinder 16. The movable rod 17 movably passes through the installation cylinder 16 and extends to the outside. The outer end of the movable rod 17 is fixedly connected to the limiting plate 12 on the outside of the installation cylinder 16. A second spring 18 is installed inside the installation cylinder 16. One end of the second spring 18 is connected to the installation cylinder 16, and the other end of the second spring 18 is connected to the movable rod 17. The second spring 18 does not deform in its initial state. When the installation rod 4 and the connecting rod 6 are disassembled, the movable rod 17 is moved by moving the limiting plate 12 outward. When the movable rod 17 moves, it stretches the second spring 18, causing the second spring 18 to deform. Subsequently, when the limiting plate 12 is released, the elastic potential energy of the second spring 18 is released, which can drive the locking block 13 to quickly lock into the locking groove 15 on the outside of the push block 14, thereby improving the convenience and stability of fixing the connecting rod 6.

[0032] In addition, a handle 19 is fixedly provided on the outside of the limiting plate 12. The handle 19 makes it easy to pull the limiting plate 12, further improving the ease of operation for the staff.

[0033] Working principle: When the expansion joint body 1 is in use, the multiple sets of mounting rods 4 and connecting rods 6 can prevent deformation. At the same time, the first spring 10 can also ensure the elastic buffering effect of the expansion joint body 1, ensuring its normal use. When the elasticity of the first spring 10 decreases, first unscrew the wing nuts 9 on both sides, then press the two sets of connecting rods 6 into the mounting groove 5. Then, by engaging the locking block 13 with the locking groove 15 on the upper side of the push block 14, the connecting rods 6 can be fixed. Then, the mounting rods 4 and connecting rods 6 can be removed from between the two sets of mounting blocks 3. Then, the locking block 13 is removed from the locking groove 15 on the upper side of the push block 14. At this time, the rebound force of the first spring 10 can drive the connecting rods 6 to move outward from the mounting groove 5. After the connecting rods 6 are removed from the mounting groove 5, the first spring 10 and the mounting plate 11 can be removed from the mounting groove 5 for replacement.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An expansion joint anti-deformation structure, comprising an expansion joint body (1), characterized in that: The expansion joint body (1) is fixedly provided with flanges (2) on both sides. Multiple sets of mounting blocks (3) are fixedly provided on the outer side of the two sets of flanges (2). Mounting rods (4) are provided between adjacent mounting blocks (3). Mounting grooves (5) are provided through both ends of the mounting rods (4). A connecting rod (6) is movably inserted into the inner side of the mounting groove (5). The connecting rod (6) movably passes through the mounting groove (5) and extends to the outer side. A connecting block (7) is fixedly provided on the outer side of the connecting rod (6) located outside the mounting groove (5). A threaded rod (8) is fixedly provided on the outer side of the connecting block (7). The threaded rod (8) movably passes through the mounting block (3) and extends to the outer side. A wing nut (9) is threaded on the outer side of the threaded rod (8) located outside the mounting block (3). A first spring (10) is provided on the inner side of the mounting groove (5) located inside the connecting rod (6).

2. The expansion joint anti-deformation structure according to claim 1, characterized in that: Mounting discs (11) are fixedly installed at both ends of the first spring (10).

3. The expansion joint anti-deformation structure according to claim 1, characterized in that: A push block (14) is fixedly installed on the outside of the connecting rod (6).

4. The expansion joint anti-deformation structure according to claim 3, characterized in that: The mounting rod (4) is provided with a limiting plate (12) on the outside, and two sets of locking blocks (13) are fixedly provided on the inner side of the limiting plate (12). The upper side of the push block (14) is provided with a locking groove (15) for docking the locking block (13).

5. The expansion joint anti-deformation structure according to claim 4, characterized in that: An installation cylinder (16) is fixedly installed on the outside of the installation rod (4). A movable rod (17) is movably inserted into the inside of the installation cylinder (16). The movable rod (17) movably passes through the installation cylinder (16) and extends to the outside. The outer end of the movable rod (17) is fixedly connected to the limiting plate (12) on the outside of the installation cylinder (16). A second spring (18) is provided on the inside of the installation cylinder (16). One end of the second spring (18) is connected to the installation cylinder (16), and the other end of the second spring (18) is connected to the movable rod (17).

6. The expansion joint anti-deformation structure according to claim 4, characterized in that: A handle (19) is fixedly provided on the outside of the limiting plate (12).

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