Height-adjustable steel box girder pushing equipment

Abstract

The utility model discloses height-adjustable steel box girder pushing equipment which comprises a jacking table, a moving table and a jacking plate, a first pin shaft seat is fixedly installed on the upper surface of the moving table, a first pushing oil cylinder is hinged to the first pin shaft seat through a pin shaft, a first connecting block is fixedly installed at the output end of the first pushing oil cylinder, and a second connecting block is fixedly installed at the output end of the first connecting block. And a second pin shaft seat is fixedly mounted on the bottom surface of the jacking plate and is hinged to the first connecting block through a pin shaft. According to the device, a first pin shaft seat is installed on the upper surface of the moving table, the bottom end of a first pushing oil cylinder is hinged to the first pin shaft seat through a pin shaft, so that the first pushing oil cylinder can rotate around the first pin shaft seat by a certain angle, and a first connecting block is installed at the output end of the first pushing oil cylinder; and the first connecting block is hinged to a second pin shaft seat on the bottom surface of the jacking plate through a pin shaft, so that the output end of the first jacking oil cylinder extends or contracts to drive the jacking plate to adjust the angle.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a steel box girder jacking equipment with adjustable height. Background Technique

[0002] The steel box girder is a common structural form of long-span bridges. Because it looks like a box, it is also called a steel plate box girder. It is usually used in bridges with larger spans. The steel box girder is formed by connecting the top plate, bottom plate, web, transverse diaphragm, longitudinal diaphragm and stiffening ribs, etc. through full welding. The steel box girder jacking method refers to the construction method in which the beam body is cast or assembled section by section at the bridgehead and longitudinally jacked by a jack so that the beam body is in place through the temporary sliding bearing surface at the top of each pier. It is mostly applied to the construction of continuous beam bridges and cable-stayed bridges with cross-sections such as prestressed reinforced concrete. With the development of bridge construction in China, the erection of steel box girder jacking equipment with large spans has become an important development direction.

[0003] However, most of the existing steel box girder jacking equipment cannot adjust the angle and cannot be applied to different inclined bridge decks, resulting in low work efficiency. Therefore, we propose a steel box girder jacking equipment with adjustable height to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a steel box girder jacking equipment with adjustable height to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A steel box girder jacking equipment with adjustable height, including a jacking platform, a moving platform and a jacking plate. A first pin seat is fixedly installed on the upper surface of the moving platform. The first pin seat is hinged with a first jacking oil cylinder through a pin. The output end of the first jacking oil cylinder is fixedly installed with a first connecting block. A second pin seat is fixedly installed on the bottom surface of the jacking plate. The second pin seat is hinged with the first connecting block through a pin. A second jacking oil cylinder is fixedly installed on the upper surface of the moving platform. The output end of the second jacking oil cylinder is fixedly installed with a third pin seat. A second connecting block is fixedly installed on the bottom surface of the jacking plate. The third pin seat is hinged with the second connecting block through a pin.

[0007] In a further embodiment, a third jacking oil cylinder is fixedly installed on the upper surface of the jacking platform. The output end of the third jacking oil cylinder is fixedly installed with the left side surface of the moving platform.

[0008] In a further embodiment, two strip-shaped sliding grooves are opened on the upper surface of the jacking platform. Two strip-shaped sliding blocks are fixedly installed on the bottom surface of the moving platform. The outer surface of each strip-shaped sliding block is slidably connected with the inner wall of the strip-shaped sliding groove.

[0009] In a further embodiment, a rubber pad is fixedly installed on the upper surface of the jacking plate, and a plurality of anti-slip grooves arranged at equal intervals are formed on the upper surface of the rubber pad.

[0010] In a further embodiment, a warning light is fixedly installed on the upper surface of the jacking table, and an information processor is fixedly installed on the front surface of the jacking table.

[0011] In a further embodiment, four support legs are fixedly installed on the bottom surface of the jacking table, a support seat is fixedly installed on the bottom surface of each support leg, and anti-slip lines are formed on the bottom surface of each support seat.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In this device, a first pin seat is installed on the upper surface of the moving table, and the bottom end of the first jacking oil cylinder is hinged to the first pin seat by using a pin, so that the first jacking oil cylinder can rotate by a certain angle around the first pin seat. By installing a first connecting block at the output end of the first jacking oil cylinder and hinging the first connecting block to the second pin seat on the bottom surface of the jacking plate by using a pin, the extension or contraction of the output end of the first jacking oil cylinder can drive the jacking plate to adjust the angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the front view of a height-adjustable steel box girder jacking device.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the bottom view of a height-adjustable steel box girder jacking device.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the side sectional view of the jacking table in a height-adjustable steel box girder jacking device.

[0017] Figure 4 For Figure 2 the enlarged structural schematic diagram at position A in

[0018] In the figure: 1, support seat; 2, support leg; 3, jacking table; 4, strip-shaped chute; 5, first pin seat; 6, information processor; 7, warning light; 8, third jacking oil cylinder; 9, first jacking oil cylinder; 10, anti-slip groove; 11, rubber pad; 12, jacking plate; 13, second jacking oil cylinder; 14, moving table; 15, second connecting block; 16, third pin seat; 17, anti-slip line; 18, strip-shaped slider; 19, first connecting block; 20, second pin seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, in the present utility model, a height-adjustable steel box girder jacking equipment includes a jacking platform 3, a moving platform 14 and a jacking plate 12. A first pin seat 5 is fixedly installed on the upper surface of the moving platform 14. The first pin seat 5 is hinged with a first jacking oil cylinder 9 through a pin. The output end of the first jacking oil cylinder 9 is fixedly installed with a first connecting block 19. A second pin seat 20 is fixedly installed on the bottom surface of the jacking plate 12. The second pin seat 20 is hinged with the first connecting block 19 through a pin. A second jacking oil cylinder 13 is fixedly installed on the upper surface of the moving platform 14. The output end of the second jacking oil cylinder 13 is fixedly installed with a third pin seat 16. A second connecting block 15 is fixedly installed on the bottom surface of the jacking plate 12. The third pin seat 16 is hinged with the second connecting block 15 through a pin. The staff sends instructions through a remote terminal. After the information processor 6 receives the instructions, it can control the extension or contraction of the output end of the first jacking oil cylinder 9. Through the mutual cooperation of the first pin seat 5, the second pin seat 20, the third pin seat 16, the first connecting block 19 and the second connecting block 15, the jacking plate 12 can achieve angle adjustment.

[0023] A third jacking oil cylinder 8 is fixedly installed on the upper surface of the jacking platform 3. The output end of the third jacking oil cylinder 8 is fixedly installed with the left side surface of the moving platform 14. By fixedly installing the left side surface of the moving platform 14 with the output end of the third jacking oil cylinder 8, the output end of the third jacking oil cylinder 8 can push the moving platform 14 to move. Two strip-shaped sliding grooves 4 are opened on the upper surface of the jacking platform 3. Two strip-shaped sliding blocks 18 are fixedly installed on the bottom surface of the moving platform 14. The outer surface of each strip-shaped sliding block 18 is slidably connected with the inner wall of the strip-shaped sliding groove 4. By using the strip-shaped sliding blocks 18 to cooperate with the strip-shaped sliding grooves 4, the moving platform 14 can move smoothly.

[0024] A rubber pad 11 is fixedly installed on the upper surface of the jacking plate 12. A number of anti-slip grooves 10 are arranged at equal distances on the upper surface of the rubber pad 11. By installing the rubber pad 11 on the upper surface of the jacking plate 12, the steel box girder can be effectively protected. By opening the anti-slip grooves 10 on the upper surface of the rubber pad 11, the friction between the rubber pad 11 and the bottom surface of the steel box girder can be effectively increased. A warning light 7 is fixedly installed on the upper surface of the jacking platform 3. An information processor 6 is fixedly installed on the front surface of the jacking platform 3. When the warning light 7 is lit during operation, it can play a warning role for the nearby construction workers. Four support legs 2 are fixedly installed on the bottom surface of the jacking platform 3. A support seat 1 is fixedly installed on the bottom surface of each support leg 2. An anti-slip pattern 17 is opened on the bottom surface of each support seat 1. By installing four support legs 2 on the bottom surface of the jacking platform 3, the jacking platform 3 can be effectively lifted to a certain height. By installing a support seat 1 on the bottom surface of each support leg 2 and opening an anti-slip pattern 17 on the bottom surface of each support seat 1, the device can be placed more stably.

[0025] The working principle of the present utility model is as follows: First, a staff member sends an instruction to the information processor 6 through a remote terminal. After the information processor 6 receives the instruction and processes it, the information processor 6 then activates the first jacking oil cylinder 9. The output end of the first jacking oil cylinder 9 extends upward to drive the first connecting block 19 to move upward. When the output end of the first jacking oil cylinder 9 extends, it drives itself to adjust the direction. Through the cooperation of the second pin seat 20 and the first connecting block 19, the first connecting block 19 can lift the left end of the jacking plate 12.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A height-adjustable steel box girder jacking device, characterized in that: The invention comprises a lifting platform (3), a movable platform (14) and a lifting plate (12); a first pin shaft seat (5) is fixedly mounted on the upper surface of the movable platform (14); the first pin shaft seat (5) is hingedly connected to a first jacking cylinder (9) via a pin shaft; a first connecting block (19) is fixedly mounted on the output end of the first jacking cylinder (9); a second pin shaft seat (20) is fixedly mounted on the bottom surface of the lifting plate (12); the second pin shaft seat (20) is hingedly connected to the first connecting block (19) via a pin shaft; a second jacking cylinder (13) is fixedly mounted on the upper surface of the movable platform (14); a third pin shaft seat (16) is fixedly mounted on the output end of the second jacking cylinder (13); a second connecting block (15) is fixedly mounted on the bottom surface of the lifting plate (12); the third pin shaft seat (16) is hingedly connected to the second connecting block (15) via a pin shaft.

2. The height-adjustable steel box girder pushing device according to claim 1, characterized in that: A third jacking oil cylinder (8) is fixedly mounted on the upper surface of the jacking platform (3), and an output end of the third jacking oil cylinder (8) is fixedly mounted on the left side of the moving platform (14).

3. The height-adjustable steel box girder jacking device according to claim 1, characterized in that: The upper surface of the lifting platform (3) is provided with two strip-shaped slide grooves (4), and the bottom surface of the moving platform (14) is fixedly provided with two strip-shaped sliding blocks (18), and the outer surface of each strip-shaped sliding block (18) is slidably connected to the inner wall of the strip-shaped slide groove (4).

4. The height-adjustable steel box girder jacking device according to claim 1, characterized in that: A rubber pad (11) is fixedly mounted on the upper surface of the lifting plate (12), and a plurality of anti-skid grooves (10) arranged at equal distances are provided on the upper surface of the rubber pad (11).

5. The height-adjustable steel box girder pushing device according to claim 1, characterized in that: A warning light (7) is fixedly mounted on the upper surface of the lifting platform (3), and an information processor (6) is fixedly mounted on the front surface of the lifting platform (3).

6. The height-adjustable steel box girder jacking device according to claim 1, characterized in that: Four support legs (2) are fixedly mounted on the bottom surface of the lifting platform (3), a support seat (1) is fixedly mounted on the bottom surface of each support leg (2), and anti-slip grooves (17) are provided on the bottom surface of each support seat (1).

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