Self-adaptive bridge expansion joint rapid installation device

Abstract

The utility model discloses a self-adaptive bridge expansion joint rapid installation device which comprises a fixing plate, a first groove is formed in the fixing plate, the side, located on the first groove, of the fixing plate is rotationally connected with a first two-way screw rod, the two sides, away from each other, of the first two-way screw rod are in threaded connection with clamping plates, and the bottom ends of the clamping plates are in threaded connection with supporting rods. The two sides of the upper end of the clamping plate are both fixedly connected with protrusions, one protrusion is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a rotating plate, one side of the fixed plate is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a movable plate. And the limiting plates make contact with the reserved grooves, then the two sides of the bridge expansion joint are limited through the clamping plates, and electric push rods are matched to contract to drive the push rods to push the two ends of the bridge expansion joint, so that limiting of the bridge expansion joint is provided, stable limiting of the bridge expansion joint during hoisting is promoted, and the mounting efficiency and safety of the bridge expansion joint are improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge expansion joint technology, specifically to an adaptive bridge expansion joint quick installation device. Background Technology

[0002] Adaptive bridge expansion joints are special bridge structural components designed to meet the deformation requirements of bridge decks. They are typically installed between the ends of two beams, between the beam end and the abutment, or at the hinged joints of the bridge. Their main purpose is to adapt to the expansion and contraction deformation of the bridge caused by natural factors such as temperature and humidity, reduce the stress on the bridge structure, and extend the service life of the bridge. During the installation process, bridge expansion joints are usually placed using hoisting equipment, welded using welding equipment, and then concrete is poured. After the concrete has cured, the formwork and fixing clips on the expansion joint are removed, thus enabling them to withstand external loads.

[0003] During the hoisting process, bridge expansion joints will sway under the action of suspension force and gravity, which makes them prone to collisions when placed. This requires manual adjustment of both ends of the bridge expansion joint, affecting the installation efficiency.

[0004] Therefore, an adaptive bridge expansion joint rapid installation device is proposed to solve the problem that bridge expansion joints are prone to swaying during placement, which affects the installation efficiency of bridge expansion joints. Utility Model Content

[0005] The technical problem this invention aims to solve is that bridge expansion joints are prone to swaying during placement, which affects the installation efficiency of bridge expansion joints. Therefore, an adaptive bridge expansion joint rapid installation device is proposed.

[0006] The technical solution adopted by this utility model to solve the technical problem is: an adaptive bridge expansion joint quick installation device, including a fixing plate, a first groove on the fixing plate, a first bidirectional screw rotatably connected to one side of the fixing plate in the first groove, clamping plates threaded to both sides of the first bidirectional screw, protrusions fixedly connected to both sides of the upper end of the clamping plate, a first motor fixedly connected to one of the protrusions, a rotating plate fixedly connected to the output end of the first motor, an electric push rod fixedly connected to one side of the fixing plate, a moving plate fixedly connected to the output end of the electric push rod, a push plate fixedly connected to one side of the upper end of the moving plate, the push plate contacting the fixing plate, and a limit plate provided at the bottom end of the clamping plate.

[0007] As a preferred technical solution of this utility model, a second groove is provided on each of the four mutually distant sides of the fixing plate. The second groove is rotatably connected to a connecting frame via a rotating shaft. A pulley is rotatably connected to the bottom side of the connecting frame. By providing the pulley, the device can be moved easily.

[0008] As a preferred technical solution of this utility model, the fixing plate is threadedly connected to a positioning rod on one side of the second groove. The positioning rod is inserted into the connecting frame. By setting the positioning rod, the connecting frame can be limited, thereby facilitating the adjustment of the position of the connecting frame.

[0009] As a preferred technical solution of this utility model, a support block is in contact with the upper side of the fixing plate, and the support block is fixedly connected to the clamping plate. By setting the support block, the limiting effect of the clamping plate on the bridge expansion joint can be improved.

[0010] As a preferred technical solution of this utility model, the fixed plate is movably inserted into a sliding groove on one side, and an extension plate is movably inserted into the sliding groove. By setting the extension plate, the stability of the fixed plate connecting to the bridge expansion joint can be increased.

[0011] As a preferred technical solution of this utility model, a third groove is provided on the bottom side of the fixing plate, and a second bidirectional screw is rotatably connected to the fixing plate in the third groove. A slider is threadedly connected to both sides of the second bidirectional screw that are far apart from each other. A stud is threadedly connected to the bottom end of the slider, and the stud is fixedly connected to the limiting block. By setting the second bidirectional screw, the slider can be driven to move, so that the two adjacent limiting blocks can adapt to the width of the reserved groove.

[0012] As a preferred technical solution of this utility model, a hidden groove is provided on the fixing plate, and the slider is located in the hidden groove. By providing a hidden groove, the slider can be easily hidden.

[0013] This utility model has the following advantages: by setting a fixed plate to contact the reserved groove, and by using a limiting plate to contact the reserved groove, and then using a clamping plate to limit both sides of the bridge expansion joint, and cooperating with the contraction of the electric push rod to drive the push rod to push both ends of the bridge expansion joint, the bridge expansion joint is provided with a limit, which promotes the stable limit of the bridge expansion joint during hoisting, and improves the installation efficiency and safety of the bridge expansion joint. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the adaptive bridge expansion joint rapid installation device of this utility model;

[0015] Figure 2 This is a side view of a preferred embodiment of the adaptive bridge expansion joint quick installation device of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the fixing plate of the adaptive bridge expansion joint quick installation device according to a preferred embodiment of the present invention;

[0017] Figure 4This is a three-dimensional structural diagram of the connecting frame of the adaptive bridge expansion joint quick installation device according to a preferred embodiment of the present invention;

[0018] Figure 5 This is a three-dimensional structural diagram of the bottom side of the fixing plate of the adaptive bridge expansion joint quick installation device according to a preferred embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Fixing plate; 2. First groove; 3. First bidirectional screw; 4. Clamping plate; 5. Protrusion; 6. Rotating plate; 7. Electric push rod; 8. Moving plate; 9. Push plate; 10. Limiting block; 11. Second groove; 12. Connecting frame; 13. Positioning rod; 14. Support block; 15. Extension plate; 16. Third groove; 17. Second bidirectional screw; 18. Slider; 19. Stud; 20. Hidden groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to the following: Figure 1-5 The adaptive bridge expansion joint quick installation device shown includes a fixing plate 1. Two fixing plates 1 are provided and distributed on both sides of a reserved groove (not shown in the figure). The fixing plates 1 and the bottom limiting plate 10 of the fixing plates 1 are in contact with the edge of the reserved groove. A first groove 2 is provided on the fixing plate 1. A first bidirectional screw 3 is rotatably connected to the fixing plate 1 on one side of the first groove 2. The rotation of the first bidirectional screw 3 can drive the relative movement of the clamping plates 4. The clamping plates 4 are threaded to both sides of the first bidirectional screw 3 that are far apart from each other. Protrusions 5 are fixedly connected to both sides of the upper end of the clamping plates 4. A first motor is fixedly connected to one of the protrusions 5. The first motor drives the rotating plate 6 to rotate, which can support both sides of the bridge expansion joint during hoisting. The output end of the first motor is fixedly connected to the rotating plate 6. An electric push rod 7 is fixedly connected to one side of the fixed plate 1. The retraction of the electric push rod 7 can cause the moving plate 8 and the push plate 9 to move, thereby causing the push plate 9 to move on the upper side of the fixed plate 1. The output end of the electric push rod 7 is fixedly connected to the moving plate 8. The upper side of the moving plate 8 is fixedly connected to the push plate 9. The push plate 9 contacts the fixed plate 1. The clamping plate 4 is located at the bottom of the fixed plate 1 and is provided with a limit block 10. The limit block 10 can be connected by contacting the corner of the reserved groove.

[0022] The fixed plate 1 has four mutually spaced sides with a second groove 11. The second groove 11 is rotatably connected to a connecting frame 12 via a rotating shaft. The bottom of the connecting frame 12 is rotatably connected to a pulley. By setting a rotatable connecting frame 12, the position of the pulley can be easily adjusted.

[0023] The fixing plate 1 is threadedly connected to a positioning rod 13 on one side of the second groove 11. The positioning rod 13 is inserted into the connecting frame 12. The positioning rod 13 can provide a limit for the connecting frame 12.

[0024] Among them, the upper side of the fixed plate 1 is in contact with the support block 14, and the support block 14 is fixedly connected to the clamping plate 4. By setting the support block 14, the movement of the clamping plate 4 can be supported.

[0025] The fixed plate 1 has a movable sliding groove on one side, and an extension plate 15 is movably inserted into the groove. By setting the extension plate 15, the contact surface between the fixed plate 1 and the ground can be increased.

[0026] The fixing plate 1 has a third groove 16 on its bottom side. The fixing plate 1 is rotatably connected to the second bidirectional screw 17 in the third groove 16. The two sides of the second bidirectional screw 17 that are far apart from each other are threaded with sliders 18. The bottom end of the slider 18 is threaded with a stud 19. The stud 19 is fixedly connected to the limiting block 10.

[0027] The fixed plate 1 has a hidden groove 20, and the slider 18 is located in the hidden groove 20. By removing the limiting block 10, the bottom side of the fixed plate 1 can be made to fit with the two sides of the reserved groove.

[0028] Working principle: First, adjust the position of the fixing plate 1 and place it at both ends of the reserved groove. Then, rotate the second bidirectional screw 17 to drive the two sliders 18 to move relative to each other. According to the actual distribution position of the two fixing plates 1, install two sliders 18 on the two fixing plates 1 respectively. At this time, the limiting block 10 contacts the corner of the reserved groove and makes the two fixing plates 1 correspond to each other. It should be noted that most of the position of the fixing plate 1 is outside the reserved groove and in contact with the bridge surface. Then, use a crane to lift the bridge expansion joint and move it between the two clamps 4 on the upper side of the fixing plate 1. The bridge expansion joint gradually moves down. At this time, the first motor drives the rotating plate 6 to rotate and gradually calibrates the position of the bridge expansion joint. At this time, the bridge expansion joint gradually contacts the fixing plate 1. Then, start the electric push rod 7 to retract and make the moving plate 8 move. The push plate 9 pushes the bridge expansion joint to move laterally and adjusts the corresponding position of the bridge expansion joint and the reserved groove, so that the bridge expansion joint quickly falls into the reserved groove, which facilitates the rapid installation of the bridge expansion joint and improves the installation speed.

[0029] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0030] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adaptive bridge expansion joint quick installation device, comprising a fixing plate (1), characterized in that, The fixing plate (1) has a first groove (2). The fixing plate (1) is rotatably connected to a first bidirectional screw (3) on one side of the first groove (2). The two sides of the first bidirectional screw (3) are threaded with clamping plates (4). The upper ends of the clamping plates (4) are fixedly connected to protrusions (5). One of the protrusions (5) is fixedly connected to a first motor. The output end of the first motor is fixedly connected to a rotating plate (6). The fixing plate (1) has an electric push rod (7) fixedly connected to one side. The output end of the electric push rod (7) is fixedly connected to a moving plate (8). The upper end of the moving plate (8) is fixedly connected to a push plate (9). The push plate (9) is in contact with the fixing plate (1). The clamping plate (4) is provided with a limit block (10) at the bottom end of the fixing plate (1).

2. The adaptive bridge expansion joint rapid installation device as described in claim 1, characterized in that, The fixing plate (1) has four mutually spaced sides with a second groove (11). The second groove (11) is rotatably connected to a connecting frame (12) via a rotating shaft. The bottom side of the connecting frame (12) is rotatably connected to a pulley.

3. The adaptive bridge expansion joint rapid installation device as described in claim 2, characterized in that, The fixing plate (1) is threadedly connected to a positioning rod (13) on one side of the second groove (11), and the positioning rod (13) is inserted into the connecting frame (12).

4. The adaptive bridge expansion joint rapid installation device as described in claim 3, characterized in that, The upper side of the fixing plate (1) is in contact with a support block (14), and the support block (14) is fixedly connected to the clamping plate (4).

5. The adaptive bridge expansion joint rapid installation device as described in claim 4, characterized in that, The fixed plate (1) has a movable insertion groove on one side, and an extension plate (15) is movably inserted into the groove.

6. The adaptive bridge expansion joint rapid installation device as described in claim 5, characterized in that, The fixing plate (1) has a third groove (16) on its bottom side. The fixing plate (1) is rotatably connected to a second bidirectional screw (17) located in the third groove (16). The two sides of the second bidirectional screw (17) that are far apart from each other are threaded with sliders (18). The bottom end of the slider (18) is threaded with a stud (19). The stud (19) is fixedly connected to the limiting block (10).

7. The adaptive bridge expansion joint rapid installation device as described in claim 6, characterized in that, The fixed plate (1) has a hidden groove (20), and the slider (18) is located in the hidden groove (20).

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