Jacking device for bridge maintenance

Abstract

The utility model discloses a bridge maintenance jacking device in the technical field of bridge construction, which comprises a base, a diagonal bracing block is fixedly mounted at the top of a sliding block, a connecting shaft is fixedly mounted on one side of the diagonal bracing block, the output end of a hydraulic cylinder is fixedly connected with one end of the connecting shaft, and the output end of the hydraulic cylinder is fixedly connected with the other end of the connecting shaft. A sleeve is installed on the inner side of the top surface of the fixing frame in a penetrating mode, an ejector rod is slidably arranged on the inner side of the sleeve in a penetrating mode, a supporting block is fixedly connected to the top end of the ejector rod, a limiting disc is fixedly installed at the bottom end of the ejector rod, and the spring is arranged between the limiting disc and the upper surface of the inner side of the fixing frame. The operation of the hydraulic cylinder can drive the inclined supporting block and the sliding block to move towards the right side along the surface of the sliding rail through the connecting shaft, so that the guide wheel and the ejector rod can be driven to move upwards, the upward movement of the ejector rod can drive the supporting block at the end to rise, and the jacking effect on the bridge is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically relating to a bridge maintenance lifting device. Background Technology

[0002] In my country, municipal infrastructure refers to various buildings, structures, and equipment set up within the planning and construction scope of urban areas and towns (townships) to provide paid or free public goods and services to residents based on government responsibilities and obligations. The construction of various public infrastructure supporting urban life falls under the category of municipal engineering, such as common urban roads and bridges. Bridges will develop certain defects during long-term use, so they need to be repaired. When repairing bridges, necessary protective measures need to be taken, and jacking devices are one of the protective measures.

[0003] Existing bridge maintenance lifting devices are all made of metal, resulting in significant weight. This makes it difficult for workers to operate and adjust the lifting mechanism during installation, thus reducing work efficiency. Therefore, we propose a new bridge maintenance lifting device. Utility Model Content

[0004] The purpose of this invention is to provide a bridge maintenance lifting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bridge maintenance lifting device, comprising a base, a fixed frame on the top of the base, a slide rail on the inner side of the fixed frame, a slider on the surface of the slide rail, a diagonal support block on the top of the slider, a connecting shaft on one side of the diagonal support block, a hydraulic cylinder on the outer side of the fixed frame, a sleeve on the top of the fixed frame, a top rod on the inner side of the sleeve, a support block on the top of the top rod, a limiting plate on the bottom of the top rod, a spring on the surface of the top rod, a guide wheel on the bottom of the limiting plate, and a limiting groove on the surface of the diagonal support block.

[0006] Preferably, a fixing frame is fixedly connected to the top surface of the base, a slide rail is fixedly installed on the lower inner side of the fixing frame, and a slider is slidably connected to the surface of the slide rail.

[0007] Preferably, a diagonal brace is fixedly installed on the top of the slider, a connecting shaft is fixedly installed on one side of the diagonal brace, and the output end of the hydraulic cylinder is fixedly connected to one end of the connecting shaft.

[0008] Preferably, a sleeve is installed through the inner side of the top surface of the fixing frame, a top rod is slidably inserted through the inner side of the sleeve, and a support block is fixedly connected to the top end of the top rod.

[0009] Preferably, the bottom end of the jacking rod is fixedly installed with a limiting disc, and the spring is arranged between the limiting disc and the upper surface of the inner side of the fixed frame.

[0010] Preferably, the bottom end of the limiting disc is rotatably installed with a guide wheel, and the surface of the inclined support block is fixedly provided with a limiting groove, and the guide wheel is arranged on the inner side of the limiting groove.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The operation of the hydraulic cylinder can drive the inclined support block and the sliding block to move along the surface of the sliding rail to the right side, so as to drive the guide wheel and the jacking rod to move upwards, and the upward movement of the jacking rod can drive the support block at the end to rise, thereby realizing the jacking effect on the bridge. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front structure schematic view of the utility model;

[0014] Figure 2 It is a whole structure schematic view of the utility model;

[0015] Figure 3 It is a side structure schematic view of the utility model.

[0016] In the drawing: 1, base; 2, fixed frame; 3, sliding rail; 4, sliding block; 5, inclined support block; 6, connecting shaft; 7, hydraulic cylinder; 8, sleeve; 9, jacking rod; 10, support block; 11, spring; 12, limiting disc; 13, guide wheel; 14, limiting groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-3This utility model provides a technical solution: a bridge maintenance lifting device, including a base 1, a fixed frame 2 on the top of the base 1, a slide rail 3 on the inner side of the fixed frame 2, a slider 4 on the surface of the slide rail 3, a diagonal support block 5 on the top of the slider 4, a connecting shaft 6 on one side of the diagonal support block 5, a hydraulic cylinder 7 on the outer side of the fixed frame 2, a sleeve 8 on the top of the fixed frame 2, a top rod 9 on the inner side of the sleeve 8, a support block 10 on the top of the top rod 9, a limiting plate 12 on the bottom of the top rod 9, a spring 11 on the surface of the top rod 9, a guide wheel 13 on the bottom of the limiting plate 12, and a limiting groove 14 on the surface of the diagonal support block 5.

[0019] Specifically, a fixed frame 2 is fixedly connected to the top surface of the base 1, a slide rail 3 is fixedly installed on the lower inner side of the fixed frame 2, a slider 4 is slidably connected to the surface of the slide rail 3, a diagonal support block 5 is fixedly installed on the top of the slider 4, a connecting shaft 6 is fixedly installed on one side of the diagonal support block 5, the output end of the hydraulic cylinder 7 is fixedly connected to one end of the connecting shaft 6, a sleeve 8 is installed through the inner side of the top surface of the fixed frame 2, a top rod 9 is slidably inserted through the inner side of the sleeve 8, a support block 10 is fixedly connected to the top of the top rod 9, a limiting plate 12 is fixedly installed at the bottom of the top rod 9, a spring 11 is located between the limiting plate 12 and the upper inner surface of the fixed frame 2, a guide wheel 13 is rotatably installed at the bottom of the limiting plate 12, a limiting groove 14 is fixedly opened on the surface of the diagonal support block 5, and the guide wheel 13 is located inside the limiting groove 14.

[0020] In this embodiment, the device is placed under the bridge that needs repair, according to... Figure 1 The hydraulic cylinder 7 drives the connecting shaft 6 to move to the right. The movement of the connecting shaft 6 will cause the diagonal support block 5 and the slider 4 to move to the right along the surface of the slide rail 3. According to the shape of the diagonal support block 5, when the diagonal support block 5 moves to the right, the guide wheel 13 will rotate in the limiting groove 14 on its surface. The highest point of the surface of the diagonal support block 5 will gradually come into contact with the guide wheel 13, thereby driving the guide wheel 13 and the top rod 9 to move upward. The limiting plate 12 will compress the spring 11. The upward movement of the top rod 9 will drive the end support block 10 to rise, thereby achieving the lifting effect of the bridge. After use, the hydraulic cylinder 7 drives the connecting shaft 6 to move to the left, and the spring 11 will drive the top rod 9 to reset, which is convenient for subsequent use.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge maintenance jacking device comprising a base (1), characterised in that: The top of the base (1) is provided with a fixed frame (2), the inner side of the fixed frame (2) is provided with a sliding rail (3), the surface of the sliding rail (3) is provided with a sliding block (4), the top of the sliding block (4) is provided with an inclined support block (5), one side of the inclined support block (5) is provided with a connecting shaft (6), the outer side of the fixed frame (2) is provided with a hydraulic cylinder (7), the top of the fixed frame (2) is provided with a sleeve (8), the inner side of the sleeve (8) is provided with a jacking rod (9), the top end of the jacking rod (9) is provided with a support block (10), the bottom end of the jacking rod (9) is provided with a limiting disc (12), the surface of the jacking rod (9) is provided with a spring (11), the bottom end of the limiting disc (12) is provided with a guide wheel (13), and the surface of the inclined support block (5) is provided with a limiting groove (14).

2. A bridge repair jacking device according to claim 1, characterised in that: The top surface of the base (1) is fixedly connected with a fixed frame (2), the inner side of the fixed frame (2) is fixedly installed below a sliding rail (3), and the surface of the sliding rail (3) is slidably connected with a sliding block (4).

3. The bridge maintenance jacking device according to claim 1, wherein: The top of the sliding block (4) is fixedly installed with an inclined support block (5), one side of the inclined support block (5) is fixedly installed with a connecting shaft (6), and the output end of the hydraulic cylinder (7) is fixedly connected with one end of the connecting shaft (6).

4. The bridge repair jacking device of claim 1, wherein: The inner side of the top surface of the fixed frame (2) is installed through a sleeve (8), the inner side of the sleeve (8) is slidably provided with a jacking rod (9), and the top end of the jacking rod (9) is fixedly connected with a support block (10).

5. The bridge repair jacking device of claim 1, wherein: The bottom end of the jacking rod (9) is fixedly installed with a limiting disc (12), and the spring (11) is arranged between the limiting disc (12) and the upper surface of the inner side of the fixed frame (2).

6. The bridge repair jacking device of claim 1, wherein: The bottom end of the limiting disc (12) is rotatably installed with a guide wheel (13), and the surface of the inclined support block (5) is fixedly provided with a limiting groove (14), and the guide wheel (13) is arranged on the inner side of the limiting groove (14).

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