Auxiliary tool for rapid replacement operation of expansion joint of highway bridge

Abstract

The utility model provides a highway bridge expansion joint quick change operation auxiliary tool, relates to highway bridge construction technical field, including: support frame, support pillar, expansion joint main part and concrete mounting groove, one side of support frame is provided with clamping frame, is provided with cylinder power, through the mutual cooperation of connecting casing pipe and connecting slide bar, and the concrete mounting groove is provided with the expansion joint main part. The expansion joint main body is stably clamped by the clamping frames on the left side and the right side, the longitudinal position of the expansion joint main body in a concrete mounting groove can be fixed, the expansion joint main body is prevented from deviating in the welding process of the expansion joint main body and a reserved steel bar, the mounting position is accurate and firm, it is guaranteed that a welding point is evenly stressed, and the use reliability of the expansion joint main body is effectively improved; the problems that when an existing highway bridge expansion joint is constructed, if the existing highway bridge expansion joint only relies on simple supporting and is not stably clamped, due to the fact that position deviation possibly occurs in the welding process of the existing highway bridge expansion joint and a reserved steel bar, stress of a welding point is uneven, loosening and breakage are prone to occurring in the later period, and the expansion joint falls off or fails integrally are solved.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge construction technology, and in particular to an auxiliary tool for quick replacement of highway bridge expansion joints. Background Technology

[0002] Expansion joints in highway bridges are an indispensable key component of bridge structures. Their main function is to accommodate the displacement and deformation of the bridge under the influence of factors such as temperature changes, vehicle loads, and foundation settlement, while ensuring the smoothness and safety of vehicle travel.

[0003] When replacing existing highway bridge expansion joints, if they are only supported by simple supports without being stably clamped, the joints may shift during the welding process with the pre-reserved steel bars, resulting in uneven stress at the weld points. This can easily lead to loosening and breakage later on, causing the expansion joint to fall off or fail completely. In addition, the difference in height or tilt angle between the top surface of the expansion joint and the concrete pavement on both sides is a common construction quality problem. If it is not corrected in time, it will have many negative impacts on the bridge's performance, traffic safety, and the lifespan of the expansion joint. Utility Model Content

[0004] This utility model relates to an auxiliary tool for the quick replacement of expansion joints on highway bridges. Powered by a cylinder, the tool uses a connecting sleeve and a connecting slide rod to stably clamp the main body of the expansion joint on both sides. This fixes the longitudinal position of the expansion joint in the concrete installation groove, preventing displacement of the expansion joint during welding with the pre-reserved reinforcing bars. The precise and secure installation of the expansion joint ensures uniform stress at the welding points, effectively improving its reliability.

[0005] This utility model provides an auxiliary tool for quick replacement of expansion joints on highway bridges, specifically including: a support frame, a support column, an expansion joint body and a concrete installation groove. The support frame is provided with a clamping frame on one side; the support frame is provided with two connecting sleeves; the clamping frame is provided with two connecting slide rods, and the connecting slide rods are matched with the connecting sleeves.

[0006] The support column is equipped with a mounting bracket; two rubber pads are provided above the mounting bracket, and the two rubber pads are distributed symmetrically.

[0007] The expansion joint body is located in the middle of the concrete installation groove, and the clamping frame is clamped on the left and right sides of the expansion joint body, and the rubber pad is supported at the bottom of the expansion joint body.

[0008] Furthermore, a fixing plate is provided at the middle position of the top of the cross frame of the support frame, a cylinder is provided at the top of the fixing plate, and the top of the two vertical frames of the support frame are provided with first connecting ears on their inner sides, and the first connecting ears are rotatably connected to the connecting sleeve through a pin.

[0009] Furthermore, a connecting plate is provided in the middle of the clamping frame, and the connecting plate is connected to the end of the telescopic rod of the cylinder. The clamping frame is provided with second connecting ears on both sides, and the second connecting ears are rotatably connected to the connecting slide rod through a pin.

[0010] Furthermore, a limiting groove is provided at the top of the connecting sleeve, and a first connecting block is provided at the top of the connecting sleeve.

[0011] Furthermore, a second connecting block is provided at the top of one end of the connecting slide rod, and a tension spring is provided on the second connecting block. The connecting slide rod is slidably inserted into the connecting sleeve, and the second connecting block is slidably connected to the connecting sleeve through a limiting groove. The two ends of the tension spring are respectively connected to the second connecting block and the first connecting block.

[0012] Furthermore, the mounting bracket is provided with fixed seats at both ends, and a sleeve is provided on the fixed seat, with a bearing groove at the top of the sleeve.

[0013] Furthermore, the bottom end of the rubber pad is provided with a lead screw, the lead screw is provided with a threaded sleeve, the bottom end of the threaded sleeve is provided with a rotating ring, the bottom end of the lead screw is slidably inserted into the sleeve, and the threaded sleeve is rotatably connected to the bearing groove of the sleeve through the rotating ring.

[0014] This utility model provides an auxiliary tool for quick replacement of expansion joints on highway bridges, which has the following beneficial effects:

[0015] In this invention, a cylinder provides power, and the connecting sleeve and connecting slide bar work together to stably clamp the expansion joint body on both sides. This fixes the longitudinal position of the expansion joint body in the concrete installation groove, preventing the expansion joint body from shifting during the welding process with the reserved steel bars. The expansion joint body is installed in a precise and firm position, ensuring that the welding points are evenly stressed and effectively improving its reliability.

[0016] In addition, this utility model is equipped with an installation frame and a rubber pad. By rotating the threaded sleeve, the screw can drive the rubber pad to adjust up and down, thereby supporting the bottom of the expansion joint body. This ensures that the expansion joint body is level with the concrete pavement. The parallel state allows the load to be evenly distributed, extending the service life of the expansion joint body and the surrounding pavement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0019] In the attached diagram:

[0020] Figure 1 This shows a schematic diagram of the overall axial view structure of this application;

[0021] Figure 2 A schematic diagram of the support frame, clamping frame, connecting sleeve and connecting slide bar structure of this application is shown;

[0022] Figure 3 This diagram shows the disassembled structure of the clamping frame, connecting sleeve, and connecting slide bar of this application.

[0023] Figure 4 A schematic diagram of the support column, mounting bracket, and rubber pad structure of this application is shown;

[0024] Figure 5 A schematic diagram of the mounting bracket and rubber pad in the disassembled state of this application is shown.

[0025] List of reference numerals in the attached diagram:

[0026] 1. Support frame; 101. Fixing plate; 102. Cylinder; 103. First connecting lugs; 2. Clamping frame; 201. Connecting plate; 202. Second connecting lugs; 3. Connecting sleeve; 301. Limiting groove; 302. First connecting block; 4. Connecting slide rod; 401. Second connecting block; 402. Tension spring; 5. Support column; 6. Mounting frame; 601. Fixing seat; 602. Sleeve; 603. Bearing groove; 7. Rubber pad; 701. Lead screw; 702. Threaded sleeve; 703. Rotating ring; 8. Expansion joint body; 9. Concrete installation groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1: Please refer to Figures 1 to 5 :

[0029] This utility model proposes an auxiliary tool for quick replacement of expansion joints on highway bridges, including: a support frame 1, a support column 5, an expansion joint body 8, and a concrete installation groove 9. A clamping frame 2 is provided on one side of the support frame 1; two connecting sleeves 3 are provided on the support frame 1; two connecting slide rods 4 are provided on the clamping frame 2, and the connecting slide rods 4 are matched with the connecting sleeves 3.

[0030] The support column 5 is equipped with a mounting bracket 6; two rubber pads 7 are provided above the mounting bracket 6, and the two rubber pads 7 are distributed symmetrically.

[0031] The expansion joint body 8 is located in the middle of the concrete installation groove 9, and the clamping frame 2 is clamped on the left and right sides of the expansion joint body 8, and the rubber pad 7 is supported at the bottom of the expansion joint body 8.

[0032] In this embodiment, as Figure 2 and Figure 3 As shown, a fixing plate 101 is provided at the middle position of the top of the horizontal frame of the support frame 1, and a cylinder 102 is provided at the top of the fixing plate 101. The tops of the two vertical frames of the support frame 1 are provided with first connecting ears 103 on their inner sides, and the first connecting ears 103 are rotatably connected to the connecting sleeve 3 by a pin.

[0033] A connecting plate 201 is provided in the middle of the clamping frame 2, and the connecting plate 201 is connected to the end of the telescopic rod of the cylinder 102. The clamping frame 2 is provided with second connecting ears 202 on both sides, and the second connecting ears 202 are rotatably connected to the connecting slide rod 4 through a pin.

[0034] A limiting groove 301 is provided at the top of the connecting sleeve 3, and a first connecting block 302 is provided at the top of the connecting sleeve 3;

[0035] A second connecting block 401 is provided at the top of one end of the connecting slide rod 4. A tension spring 402 is provided on the second connecting block 401. The connecting slide rod 4 is slidably inserted into the connecting sleeve 3, and the second connecting block 401 is slidably connected to the connecting sleeve 3 through the limiting groove 301. The two ends of the tension spring 402 are respectively connected to the second connecting block 401 and the first connecting block 302. In this utility model, the cylinder 102 provides power. Through the cooperation of the connecting sleeve 3 and the connecting slide rod 4, the clamping frames 2 on the left and right sides stably clamp the expansion joint body 8, which can fix the longitudinal position of the expansion joint body 8 in the concrete installation groove 9 and prevent the expansion joint body 8 from shifting during the welding process with the reserved steel bars.

[0036] Example 2, based on Example 1, such as Figure 4 and Figure 5 As shown, the mounting bracket 6 has a fixed seat 601 at both the left and right ends, a sleeve 602 on the fixed seat 601, and a bearing groove 603 at the top of the sleeve 602.

[0037] The bottom end of the rubber pad 7 is provided with a lead screw 701, the lead screw 701 is provided with a threaded sleeve 702, the bottom end of the threaded sleeve 702 is provided with a rotating ring 703, the bottom end of the lead screw 701 is slidably inserted into the sleeve 602, and the threaded sleeve 702 is rotatably connected to the bearing groove 603 of the sleeve 602 through the rotating ring 703. In this utility model, there is an installation frame 6 and a rubber pad 7. By rotating the threaded sleeve 702, the lead screw 701 can drive the rubber pad 7 to adjust up and down, thereby supporting the bottom of the expansion joint body 8 and ensuring that the expansion joint body 8 is level with the concrete pavement.

[0038] The working principle of this embodiment is as follows: When replacing and laying the expansion joint body 8, the cylinder 102 provides power, and the connecting sleeve 3 and the connecting slide rod 4 cooperate with each other to make the clamping frames 2 on the left and right sides stably clamp the expansion joint body 8, which can fix the longitudinal position of the expansion joint body 8 in the concrete installation groove 9 and prevent the expansion joint body 8 from shifting during the welding process with the reserved steel bars; by rotating the threaded sleeve 702, the screw rod 701 can drive the rubber pad 7 to adjust up and down, thereby supporting the bottom of the expansion joint body 8 and ensuring that the expansion joint body 8 is level with the concrete pavement.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A quick-change auxiliary tool for highway bridge expansion joints, characterized in that, include: The support frame (1), support column (5), expansion joint body (8) and concrete installation groove (9) are provided. The support frame (1) is provided with a clamping frame (2) on one side; the support frame (1) is provided with two connecting sleeves (3); the clamping frame (2) is provided with two connecting slide rods (4), and the connecting slide rods (4) are matched with the connecting sleeves (3); The support column (5) is provided with a mounting bracket (6); two rubber pads (7) are provided above the mounting bracket (6), and the two rubber pads (7) are distributed symmetrically. The expansion joint body (8) is located in the middle of the concrete installation groove (9), and the clamping frame (2) is clamped on the left and right sides of the expansion joint body (8), and the rubber pad (7) is supported on the bottom of the expansion joint body (8).

2. The auxiliary tool for quick replacement of highway bridge expansion joints according to claim 1, characterized in that, The support frame (1) has a fixed plate (101) at the middle of the top of the horizontal frame. The fixed plate (101) has a cylinder (102) at the top. The two vertical frames of the support frame (1) have first connecting ears (103) on their inner sides, and the first connecting ears (103) are rotatably connected to the connecting sleeve (3) by a pin.

3. The auxiliary tool for quick replacement of highway bridge expansion joints according to claim 1, characterized in that, The clamping frame (2) is provided with a connecting plate (201) in the middle position, and the connecting plate (201) is connected to the end of the telescopic rod of the cylinder (102). The clamping frame (2) is provided with second connecting ears (202) on both sides, and the second connecting ears (202) are rotatably connected to the connecting slide rod (4) through a pin.

4. The auxiliary tool for quick replacement of highway bridge expansion joints according to claim 1, characterized in that, The top of the connecting sleeve (3) has a limiting groove (301) and the top of the connecting sleeve (3) has a first connecting block (302).

5. The auxiliary tool for quick replacement of highway bridge expansion joints according to claim 1, characterized in that, The connecting slide rod (4) has a second connecting block (401) at one end, and a tension spring (402) is provided on the second connecting block (401). The connecting slide rod (4) is slidably inserted into the connecting sleeve (3), and the second connecting block (401) is slidably connected to the connecting sleeve (3) through the limiting groove (301). The two ends of the tension spring (402) are respectively connected to the second connecting block (401) and the first connecting block (302).

6. The auxiliary tool for quick replacement of highway bridge expansion joints according to claim 1, characterized in that, The mounting bracket (6) has fixed seats (601) at both ends, and a sleeve (602) is provided on the fixed seat (601). The top of the sleeve (602) is provided with a bearing groove (603).

7. The auxiliary tool for quick replacement of highway bridge expansion joints according to claim 1, characterized in that, The bottom end of the rubber pad (7) is provided with a lead screw (701), the lead screw (701) is provided with a threaded sleeve (702), the bottom end of the threaded sleeve (702) is provided with a rotating ring (703), the bottom end of the lead screw (701) is slidably inserted into the sleeve (602), and the threaded sleeve (702) is rotatably connected to the bearing groove (603) of the sleeve (602) through the rotating ring (703).

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