Expansion joint repairing device

Abstract

The utility model relates to the technical field of repairing devices, and provides an expansion joint repairing device in order to overcome the defects that in the prior art, only internal sunken parts can be directly repaired, the repairing efficiency is low, and the outer wall of an expansion joint can be damaged due to poor force control. A connecting block is fixedly installed on the base plate, a bottom plate is fixedly installed on one side of the connecting block, two sliding grooves are symmetrically formed in the surface of the bottom plate, and a first supporting rod and a second supporting rod are symmetrically installed in the two sliding grooves in a sliding mode. The inner wall and the outer wall of the expansion joint can be extruded at the same time, the sinking problem and the swelling problem generated on the pipe wall of the expansion joint can be repaired, repairing efficiency is high, force control is uniform, the expansion joint is prevented from being damaged, and the expansion joint repairing effect of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of repair devices, in particular to an expansion joint repair device. Background Art

[0002] Expansion joints are also called compensators or telescopic joints. They are composed of bellows (an elastic element) and accessories such as end pipes, brackets, flanges, and conduits. They are a kind of compensation element. They use the effective expansion and contraction of the bellows to absorb the dimensional changes of pipelines, conduits, containers, etc. caused by thermal expansion and contraction, or compensate for the axial, lateral, and angular displacements of pipelines, conduits, containers, etc. They can also be used to reduce noise and vibration, and are widely used in modern industry.

[0003] An expansion joint repair device in the prior art (publication number: CN214368567U) can freely adjust the moving position of the arc-shaped reset plate by setting a driven bevel gear to cooperate with the active bevel gear, and fixing a threaded rod to cooperate with the support rod on the inner wall of the driven bevel gear. By adjusting the diameter of the circle formed by a plurality of arc-shaped reset plates, the expansion joint repair device can be adapted to various sizes of bellows expansion joints and repair and correct them. However, the device can only directly repair internal depressions, and external force knocking is still required for repair. This repair method has low repair efficiency and poor force control, which will damage the outer wall of the expansion joint. Therefore, it is urgent to design an expansion joint repair device with high repair efficiency and controllable force. Utility Model Content

[0004] The utility model aims to solve the problem that the existing technology can only directly repair the internal depression, the repair efficiency is low, and the outer wall of the expansion joint may be damaged due to poor force control, and proposes an expansion joint repair device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for repairing an expansion joint comprises a base, a connecting block is rotatably mounted on one side of the base, a bottom plate is fixedly mounted on one side of the connecting block, two sliding grooves are symmetrically provided on the surface of the bottom plate, a first support rod and a second support rod are symmetrically slidably mounted in the two sliding grooves, an outer pressure plate is detachably and fixedly mounted on the surface of each of the first support rods, an inner pressure plate is detachably and fixedly mounted on the surface of each of the second support rods, the two inner pressure plates and the two outer pressure plates are both in an arc-shaped structure and are respectively adapted to the inner and outer diameters of the expansion joint.

[0007] As a further technical solution of the utility model, two through holes are opened on the surface of the connecting block, and bidirectional screw rods are rotatably installed in the two through holes. The thread grooves on the surfaces of both ends of each bidirectional screw rod are symmetrically arranged, and the first motors are fixedly installed at both ends of one side of the base plate, and the two output ends of the first motors are respectively fixedly installed with the rotation center of one end of the two bidirectional screw rods.

[0008] As a further technical solution of the utility model, one end of each of the first support rod and the second support rod passes through the slide groove, and the surface is provided with a threaded hole compatible with the bidirectional screw rod and a circular hole with a diameter larger than the bidirectional screw rod.

[0009] As a further technical solution of the utility model, the two ends of the bidirectional screw rod respectively pass through the circular holes opened in the two second support rods and are threadedly connected with the threaded holes opened in the first support rod. The two ends of the other bidirectional screw rod are respectively threadedly connected with the threaded holes opened in the second support rod and pass through the circular holes opened in the two first support rods.

[0010] As a further technical solution of the utility model, the base is hollow in structure, a second motor is fixedly installed in the base, and an output end of the second motor passes through a rotation center on one side of the base and a connecting block on one side and is fixedly installed.

[0011] As a further technical solution of the utility model, a handle is fixedly installed on the other side of the base, and mounting seats are fixedly installed on one end of the two first support rods and the two second support rods. A cleaning block is bonded to the side of each mounting seat close to the outer pressure plate with Velcro.

[0012] The beneficial effects of the utility model are:

[0013] By arranging two first support rods and two second support rods symmetrically, and driving two outer pressure plates and two inner pressure plates to slide toward each other respectively, the inner and outer walls of the expansion joint can be squeezed at the same time, so that the dents and bulges produced on the wall of the expansion joint can be repaired, avoiding the need to repair the bulge by tapping separately. By rotating the bottom plate, the surface of the expansion joint can be fully covered, with high repair efficiency and uniform force control, thus avoiding damage to the expansion joint and improving the effect of the equipment on repairing the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an expansion joint repair device proposed by the utility model;

[0015] Figure 2 This is a top view structural schematic diagram of an expansion joint repair device proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of a base of an expansion joint repair device proposed by the utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part A.

[0018] In the figure: 1. base; 2. handle; 3. connecting block; 4. bottom plate; 5. first support rod; 6. second support rod; 7. outer pressure plate; 8. inner pressure plate; 9. mounting seat; 10. cleaning block; 11. first motor; 12. bidirectional screw rod; 13. slide groove; 14. second motor. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Please refer to the attached Figure 1 -Attached Figure 4A device for repairing an expansion joint comprises a base 1, a connecting block 3 is rotatably installed on one side of the base 1, a bottom plate 4 is fixedly installed on one side of the connecting block 3, two slide grooves 13 are symmetrically provided on the surface of the bottom plate 4, a first support rod 5 and a second support rod 6 are symmetrically slidably installed in the two slide grooves 13, an outer pressure plate 7 is detachably fixedly installed on the surface of each first support rod 5, an inner pressure plate 8 is detachably fixedly installed on the surface of each second support rod 6, the two inner pressure plates 8 and the two outer pressure plates 7 are both in an arc structure and are respectively adapted to the inner and outer diameters of the expansion joint, two through holes are provided on the surface of the connecting block 3, a bidirectional screw rod 12 is rotatably installed in the two through holes, the thread grooves on the surfaces of both ends of each bidirectional screw rod 12 are symmetrically arranged, a first motor 11 is fixedly installed on both ends of one side of the bottom plate 4, and the output ends of the two first motors 11 are respectively fixedly installed with the rotation center of one end of the two bidirectional screw rods 12.

[0023] When in use, the two first support rods 5 and the two second support rods 6 are symmetrically arranged. Driven by the two bidirectional screw rods 12, the two first support rods 5 and the two second support rods 6 slide toward each other synchronously, and then respectively drive the two outer pressure plates 7 and the two inner pressure plates 8 to slide toward each other, so that the inner and outer walls of the expansion joint can be squeezed at the same time, so as to repair the dents and bulges produced on the wall of the expansion joint, and effectively avoid knocking and repairing the bulge problem separately. Through the rotation of the bottom plate 4, the surface of the expansion joint can be fully covered, the repair efficiency is high and the force is evenly controlled, so as to avoid damage to the expansion joint and improve the effect of the equipment on the expansion joint repair.

[0024] In this embodiment, one end of each of the first support rod 5 and the second support rod 6 passes through the slide groove 13, and the surface is provided with a threaded hole compatible with the bidirectional screw rod 12 and a circular hole with a diameter larger than the bidirectional screw rod 12. The two ends of the bidirectional screw rod 12 respectively pass through the circular holes opened in the two second support rods 6 and are threadedly connected with the threaded holes opened in the first support rod 5. The two ends of the other bidirectional screw rod 12 are respectively threadedly connected with the threaded holes opened in the second support rod 6 and pass through the circular holes opened in the two first support rods 5.

[0025] When in use, two bidirectional screw rods 12 are arranged side by side, one is used to drive the two first support rods 5, and the other is used to drive the two second support rods 6. Two first motors 11 are set. According to the size of the bulge and the depth of the depression, the two bidirectional screw rods 12 are driven to realize the synchronous and uniform squeezing of the two inner pressure plates 8 and the two outer pressure plates 7 on the expansion joint, and the bulge and the depressed parts are gradually repaired. Through the steady rotation of the bidirectional screw rod 12, the expansion joint is evenly stressed, and damage caused by external force is avoided, thereby improving the effect of equipment repair.

[0026] In this embodiment, the base 1 has a hollow structure, and a second motor 14 is fixedly installed in the base 1. The output end of the second motor 14 passes through one side of the base 1 and is fixedly installed at the rotation center of one side of the connecting block 3. A handle 2 is fixedly installed on the other side of the base 1. A mounting seat 9 is fixedly installed at one end of two first support rods 5 and two second support rods 6. A cleaning block 10 is bonded to each mounting seat 9 close to the outer pressure plate 7 with Velcro.

[0027] When in use, the second motor 14 in the base 1 can be started to drive the connecting block 3 to rotate, thereby driving the base plate 1 and all the mechanisms on its surface to rotate around the expansion joint, so that the equipment can cover the entire expansion joint more comprehensively, with a wide repair range and improved repair efficiency of the equipment. A cleaning block 10 is provided. After the expansion joint is repaired, in order to facilitate observation of whether the surface of the expansion joint is damaged, the cleaning block 10 is bonded. Driven by the second motor 14, the handle 2 is held by hand, so that the cleaning block 10 can comprehensively clean the outer surface of the expansion joint. Velcro is used on one side of the cleaning block 10, which makes replacement more convenient, thereby improving the practicability of the equipment.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An expansion joint repair device, comprising a base (1), characterized in that: A connecting block (3) is rotatably mounted on one side of the base (1), and a bottom plate (4) is fixedly mounted on one side of the connecting block (3). Two sliding grooves (13) are symmetrically provided on the surface of the bottom plate (4), and a first support rod (5) and a second support rod (6) are symmetrically slidably mounted in the two sliding grooves (13). An outer pressure plate (7) is detachably fixedly mounted on the surface of each of the first support rods (5), and an inner pressure plate (8) is detachably fixedly mounted on the surface of each of the second support rods (6). The two inner pressure plates (8) and the two outer pressure plates (7) are both in an arc-shaped structure and are respectively adapted to the inner and outer diameters of the expansion joint.

2. An expansion joint repair device according to claim 1, characterized in that: The surface of the connection block (3) is provided with two through holes, and a bidirectional screw rod (12) is rotatably mounted in each of the two through holes, and the thread grooves on the surfaces of both ends of each bidirectional screw rod (12) are symmetrically arranged, and a first motor (11) is fixedly mounted at both ends of one side of the base plate (4), and the output ends of the two first motors (11) are respectively fixedly mounted to the rotation centers of one end of the two bidirectional screw rods (12).

3. The expansion joint repair device according to claim 1, characterized in that: One end of each of the first support rod (5) and the second support rod (6) passes through the slide groove (13), and the surface is provided with a threaded hole matched with the bidirectional screw rod (12) and a circular hole with a diameter larger than the bidirectional screw rod (12).

4. An expansion joint repair device according to claim 3, characterized in that: The two ends of the bidirectional screw rod (12) respectively pass through the circular holes opened in the two second support rods (6) and are threadedly connected to the threaded holes opened in the first support rod (5); the two ends of another bidirectional screw rod (12) are respectively threadedly connected to the threaded holes opened in the second support rod (6) and pass through the circular holes opened in the two first support rods (5).

5. The expansion joint repair device according to claim 1, characterized in that: The base (1) has a hollow structure, and a second motor (14) is fixedly installed in the base (1). The output end of the second motor (14) passes through one side of the base (1) and is fixedly installed at the rotation center of one side of the connection block (3).

6. An expansion joint repair device according to claim 5, characterized in that: A handle (2) is fixedly mounted on the other side of the base (1); mounting seats (9) are fixedly mounted on one end of the two first support rods (5) and the two second support rods (6); and a cleaning block (10) is bonded to one side of each mounting seat (9) close to the outer pressure plate (7) using Velcro.

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