Bridge crack repairing device

Abstract

The utility model relates to the technical field of bridge repairing, in particular to a bridge crack repairing device which comprises a fixing plate, a bridge reinforcing injection head is fixedly installed on one side of the bottom of the fixing plate, a fixing column is fixedly arranged in the center of the top of the fixing plate, and a rotating frame is rotationally arranged at the position, close to the top, of the fixing column. A plurality of bridge reinforcing injection pipe bodies are longitudinally arranged on the rotating frame in a sliding manner; pressing assemblies used for extruding materials into the bridge reinforcing injection head are arranged in the multiple bridge reinforcing injection pipe bodies in a sliding mode, and an adjusting assembly used for sequentially controlling the multiple pressing assemblies to extrude the materials is arranged at the top end of the fixing column. By means of the bridge reinforcing injection pipe bodies, more materials or various materials can be stored on the same device, full pipes and empty pipes are alternately used, and the working efficiency in unit time is remarkably improved; the meshing transmission of the gear and the rack has a stable transmission ratio, so that the material extrusion amount can be quantitatively controlled, and the problem of material overflow or insufficient filling is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bridge repair technology, and in particular to a bridge crack repair device. Background Technology

[0002] Bridge crack repair devices are widely used in bridge maintenance. When cracks occur in a bridge beam, epoxy resin adhesive (mortar) or other adhesives are injected into the cracks, and the epoxy resin adhesive is used to fill and repair them.

[0003] A bridge crack repair device disclosed in Chinese Patent Publication No. CN221919046U, through a limiting handle, a top fixing ring, an elastic tension band, a hook, and a bottom fixing ring, allows the hook to connect with the bottom fixing ring during prolonged epoxy resin injection into the injection tube. This tightens the elastic tension band, pulls the limiting handle downward, increases the downward squeezing force of the extrusion plate, and extrudes the epoxy resin more quickly, thereby increasing the efficiency of epoxy resin injection, improving filling fullness, and rapidly repairing cracks. However, according to relevant fields... The bridge crack repair devices and existing technologies provided by the domain have the following drawbacks: Firstly, traditional devices are mostly designed with a single injection tube. When the material in the tube is exhausted, the machine needs to be stopped to disassemble the tube for filling or replacement, resulting in periodic interruptions. Especially when repairing large-area cracks, frequent shutdowns significantly extend the construction time and cannot meet the needs of emergency repairs. Secondly, traditional devices mostly use manual push rods or rely on elastic drive, lacking a precise transmission mechanism. They cannot dynamically adjust the extrusion volume according to the crack width and depth, which easily leads to excessive overflow or insufficient extrusion. This affects the density of crack filling and prevents the material from being fully utilized. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a bridge crack repair device.

[0005] The purpose of this utility model is achieved through the following technical solution: a bridge crack repair device, including a fixing plate, a bridge reinforcement injection head fixedly installed on one side of the bottom of the fixing plate, a fixing column fixedly installed at the center of the top of the fixing plate, a rotating frame rotatably installed near the top of the fixing column, and a plurality of bridge reinforcement injection tubes slidably installed on the rotating frame; each of the plurality of bridge reinforcement injection tubes has a sliding pressing component for squeezing material into the bridge reinforcement injection head, and an adjusting component is provided at the top of the fixing column for sequentially controlling the material extrusion of the plurality of pressing components.

[0006] Preferably, the fixing plate has a insertion groove corresponding to the position of the bridge reinforcement injection head, and the bottom end of each of the multiple bridge reinforcement injection tubes is fixed with a docking ring that matches the insertion groove.

[0007] Preferably, the top of the fixing plate is provided with an annular groove, and the plurality of bridge reinforcement injection tubes are all in contact with the side wall of the annular groove.

[0008] Preferably, the pressing assembly includes a piston slidably disposed inside the bridge reinforcement injection tube, and a rack is fixedly installed on the top of the piston near the fixed post.

[0009] Preferably, the adjustment assembly includes a spline shaft rotatably disposed at the top of the fixed column, a gear is inserted into the outer surface of the spline shaft, the gear is disposed in the middle of the fixed column, and a hand crank is fixedly disposed at one end of the spline shaft.

[0010] Preferably, the fixed column has a movable groove corresponding to the position of the gear, the outer surface of the gear is arc-shaped, and the rack is adapted to the gear.

[0011] Preferably, a first rotating hole is provided at the center of the rotating frame, and the fixed column is fixedly provided with first support members on both the upper and lower sides of the rotating frame.

[0012] Preferably, the rotating frame has a first movable hole at the position of each bridge reinforcement injection tube, and the bridge reinforcement injection tube is fixedly provided with a second support on both the upper and lower sides of the rotating frame. The two second support members are used to limit the range of motion of the bridge reinforcement injection tube. Multiple fixing rods are fixed between the two second support members, and the rotating frame has a second movable hole at the position of each of the multiple fixing rods.

[0013] Preferably, the inner wall of the bridge reinforcement injection tube is fixedly provided with multiple prisms, the cross-section of the prisms is arc-shaped, and the piston is provided with matching grooves at the positions of the multiple prisms.

[0014] Preferably, the fixed post has a second rotating hole at the position corresponding to the spline shaft, and the spline shaft is connected to the second rotating hole through a bearing.

[0015] Beneficial effects:

[0016] This bridge crack repair device, through the configuration of a rotating frame, bridge reinforcement injection tubes, a pressing component, and an adjusting component, has several advantages. First, by utilizing multiple bridge reinforcement injection tubes, more or different types of materials can be stored on the same device, and the use of full and empty tubes can be alternated, significantly improving the work efficiency per unit time. Second, the meshing transmission of gears and racks has a stable transmission ratio, which allows for quantitative control of the material extrusion amount. This avoids problems such as material overflow or insufficient filling due to uneven force or pressure fluctuations, which affect the bonding strength. It ensures that the cracks are filled fully and evenly, adapting to the needs of different crack widths and depths. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram from a first-view perspective of the rack of this utility model moving downwards;

[0020] Figure 3 This is a schematic diagram from a second perspective when the rack of this utility model moves downward;

[0021] Figure 4 This is a schematic diagram showing the state of the bridge reinforcement injection tube body when the rotating frame of this utility model rotates;

[0022] Figure 5 This is a schematic diagram of the bridge reinforcement injection tube body of this utility model from a first-view perspective;

[0023] Figure 6 This is a schematic diagram of the bridge reinforcement injection tube body of this utility model from a second perspective;

[0024] Figure 7 This is a schematic diagram of the structure of the pressing component of this utility model;

[0025] Figure 8 This is a schematic diagram of the insertion slot of this utility model;

[0026] Figure 9 This utility model Figure 8 A magnified schematic diagram of the structure at point A in the middle.

[0027] In the diagram: 1. Fixed plate; 101. Insertion groove; 102. Annular groove; 2. Bridge reinforcement injection head; 3. Fixed column; 301. Movable groove; 302. First support component; 4. Rotating frame; 5. Bridge reinforcement injection tube body; 501. Connecting ring; 502. Second support component; 503. Fixed rod; 504. Prism; 6. Pressing assembly; 601. Piston; 6011. Fitting groove; 602. Rack; 7. Adjusting assembly; 701. Splined shaft; 702. Gear; 703. Hand crank. Detailed Implementation

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0030] like Figures 1 to 9As shown, a bridge crack repair device includes a fixed plate 1. A bridge reinforcement injection head 2 is fixedly installed on one side of the bottom of the fixed plate 1. A fixed column 3 is fixedly installed at the center of the top of the fixed plate 1. A rotating frame 4 is rotatably installed near the top of the fixed column 3. A first rotating hole is opened at the center of the rotating frame 4. First support members 302 are fixed on both the upper and lower sides of the fixed column 3 and the rotating frame 4. The first support members 302 can ensure the stability of the rotating frame 4 when rotating. Multiple bridge reinforcement injection tubes 5 are longitudinally slidably installed on the rotating frame 4. A first movable hole is opened on the rotating frame 4 corresponding to the position of each bridge reinforcement injection tube 5. The bridge reinforcement injection tubes 5 are located on the upper and lower sides of the rotating frame 4. Each side is fixedly equipped with a second support member 502, which restricts the range of motion of the bridge reinforcement injection tube 5. Multiple fixing rods 503 are fixed between the two second support members 502. The rotating frame 4 has second movable holes corresponding to the positions of the fixing rods 503. Each bridge reinforcement injection tube 5 has a sliding pressing component 6 for squeezing material into the bridge reinforcement injection head 2. The top of the fixed column 3 has an adjusting component 7 for sequentially controlling the material extrusion of the multiple pressing components 6. By setting multiple bridge reinforcement injection tubes 5, more material or multiple materials (such as epoxy resin or cement slurry with different ratios) can be stored on the same device, or full and empty tubes can be used alternately. When one tube is being injected, the empty tube can be filled simultaneously, avoiding downtime and significantly improving work efficiency per unit time.

[0031] like Figure 1 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the fixing plate 1 has a insertion groove 101 at the position corresponding to the bridge reinforcement injection head 2, and the bottom ends of multiple bridge reinforcement injection tubes 5 are all fixed with docking rings 501 that cooperate with the insertion groove 101; the top of the fixing plate 1 has an annular groove 102, and multiple bridge reinforcement injection tubes 5 are all in contact with the side wall of the annular groove 102; after the pressing component 6 is installed, by rotating the rotating frame 4, the docking ring 501 of one of the bridge reinforcement injection tubes 5 is aligned with the insertion groove 101. When the rotating frame 4 rotates, the fixing plate 1 can close the opening at the bottom end of the bridge reinforcement injection tube 5, thereby preventing material from overflowing.

[0032] like Figure 1 , Figure 2 , Figure 5 and Figure 7As shown, the pressing component 6 includes a piston 601 slidably disposed inside the bridge reinforcement injection tube 5. A rack 602 is fixedly installed on the top of the piston 601 near the fixed column 3. Multiple prisms 504 are fixedly disposed on the inner wall of the bridge reinforcement injection tube 5. The cross-sectional shape of the prisms 504 is arc-shaped. The piston 601 is provided with matching grooves 6011 at the positions of the multiple prisms 504. By utilizing the cooperation between the multiple matching grooves 6011 and the multiple prisms 504, it can be ensured that the piston 601 slides linearly in the bridge reinforcement injection tube 5, and it can also assist the staff in accurately installing the piston 601.

[0033] like Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the adjustment component 7 includes a spline shaft 701 rotatably mounted on the top of the fixed column 3. The fixed column 3 has a second rotating hole corresponding to the position of the spline shaft 701. The spline shaft 701 is connected to the second rotating hole through a bearing. By using the bearing, the friction of the spline shaft 701 during rotation can be reduced, and the stability of the spline shaft 701 during rotation can be improved. A gear 702 is inserted into the outer surface of the spline shaft 701. The gear 702 is located in the middle of the fixed column 3. A hand crank 703 is fixed to one end of the spline shaft 701. The fixed column 3 has a movable groove 301 corresponding to the position of the gear 702. The outer surface of the gear 702 is arc-shaped, and the rack 602 is adapted to the gear 702. The outer surface of the gear 702 adopts an arc design. Even if the bridge reinforcement injection tube 5 is circumferentially offset due to the position switching of the rotating frame 4, the arc contour can still guide the rack 602 to quickly align with the gear 702, avoiding the jamming or poor meshing problems caused by the angle deviation of the traditional spur gear 702. This design ensures that after the tube body is switched, the gear 702 and rack 602 can quickly restore the transmission relationship, improving the smoothness of the device operation; by turning the spline shaft 701 with the hand crank 703, the spline shaft 701 drives the gear 702 to rotate, and the gear 702 causes the rack 602 and piston 601 to move downward, so that the piston 601 squeezes the material into the bridge reinforcement injection head 2.

[0034] The work process is as follows:

[0035] S1: As Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, in use, the piston 601 is pulled out from inside the bridge reinforcement injection tube 5 by means of the rack 602, and then the material for repairing bridge cracks can be injected into the bridge reinforcement injection tube 5. Then, the piston 601 is inserted into the bridge reinforcement injection tube 5 by means of the rack 602 (the cooperation between multiple mating grooves 6011 and multiple prisms 504 can ensure that the piston 601 slides linearly in the bridge reinforcement injection tube 5, and can also help the staff to accurately install the piston 601).

[0036] S2: As Figures 1 to 6 As shown, after the pressing component 6 is installed, by rotating the rotating frame 4, the docking ring 501 of one of the bridge reinforcement injection tubes 5 is aligned with the insertion groove 101. When the rotating frame 4 rotates, the fixing plate 1 can close the opening at the bottom of the bridge reinforcement injection tube 5, thereby preventing material from overflowing.

[0037] S3: As Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, when the docking ring 501 of one of the bridge reinforcement injection tubes 5 is aligned with the insertion groove 101, the rack 602 on the bridge reinforcement injection tube 5 will automatically mesh with the gear 702. Then, by turning the spline shaft 701 with the hand crank 703, the spline shaft 701 will drive the gear 702 to rotate. The gear 702 will cause the rack 602 and the piston 601 to move downward, so that the piston 601 will squeeze the material into the bridge reinforcement injection head 2.

[0038] S4: As Figures 1 to 4 As shown, by setting up multiple bridge-reinforced injection tubes 5, more materials or multiple materials (such as epoxy resin, cement slurry, etc. with different ratios) can be stored on the same device, or full and empty tubes can be used alternately. When one tube is being injected, the empty tube can be filled with material simultaneously, avoiding downtime and significantly improving the work efficiency per unit time.

[0039] S5: As Figures 1 to 6 As shown, the design of the rotating frame 4 enables the rapid positioning and switching of the bridge reinforcement injection tube 5. The tube replacement can be completed without disassembling the device, which is especially suitable for repairing large-area cracks or long-distance cracks, reducing manual intervention time and ensuring the continuity of repair work.

[0040] S6: As Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the meshing transmission between gear 702 and rack 602 has a stable transmission ratio. By controlling the rotation angle of gear 702 through hand crank 703, the downward distance of rack 602 driving piston 601 can be precisely controlled, thereby quantitatively controlling the amount of material extruded. Compared with manual push rod or pneumatic drive, it avoids the problems of material overflow (waste) or insufficient filling (affecting bonding strength) caused by uneven force or pressure fluctuations, ensuring that the cracks are filled fully and evenly, adapting to the needs of different crack widths and depths.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bridge crack repair device, characterized in that: Includes a fixing plate (1), on one side of the bottom of the fixing plate (1) a bridge reinforcement injection head (2) is fixedly installed, and a fixing column (3) is fixedly installed at the center of the top of the fixing plate (1). A rotating frame (4) is rotatably installed near the top of the fixing column (3), and multiple bridge reinforcement injection tubes (5) are longitudinally slidably installed on the rotating frame (4). The interior of each of the multiple bridge reinforcement injection tubes (5) is provided with a pressing component (6) for squeezing material into the bridge reinforcement injection head (2), and the top of the fixed column (3) is provided with an adjusting component (7) for sequentially controlling the multiple pressing components (6) to squeeze out material.

2. The bridge crack repair device according to claim 1, characterized in that: The fixing plate (1) is provided with a plug groove (101) corresponding to the position of the bridge reinforcement injection head (2), and the bottom ends of the multiple bridge reinforcement injection tubes (5) are all fixed with a docking ring (501) that cooperates with the plug groove (101).

3. A bridge crack repair device according to claim 2, characterized in that: The top of the fixing plate (1) is provided with an annular groove (102), and the multiple bridge reinforcement injection tubes (5) are attached to the side wall of the annular groove (102).

4. A bridge crack repair device according to claim 1, characterized in that: The pressing assembly (6) includes a piston (601) that is slidably disposed inside the bridge reinforcement injection tube (5), and a rack (602) is fixedly installed on the top of the piston (601) near the side of the fixed column (3).

5. A bridge crack repair device according to claim 4, characterized in that: The adjustment assembly (7) includes a spline shaft (701) rotatably mounted on the top of the fixed column (3), a gear (702) is inserted into the outer surface of the spline shaft (701), the gear (702) is located in the middle of the fixed column (3), and a hand crank (703) is fixedly mounted on one end of the spline shaft (701).

6. A bridge crack repair device according to claim 5, characterized in that: The fixed column (3) has a movable groove (301) corresponding to the position of the gear (702). The outer surface of the gear (702) is arc-shaped, and the rack (602) is adapted to the gear (702).

7. A bridge crack repair device according to claim 1, characterized in that: The rotating frame (4) has a first rotating hole at its center, and the fixed column (3) is fixed with a first support member (302) on both the upper and lower sides of the rotating frame (4).

8. A bridge crack repair device according to claim 7, characterized in that: The rotating frame (4) has a first movable hole at the position of each bridge reinforcement injection tube (5). The bridge reinforcement injection tube (5) is fixedly provided with a second support (502) on both the upper and lower sides of the rotating frame (4). The two second support (502) are used to limit the range of motion of the bridge reinforcement injection tube (5). Multiple fixing rods (503) are fixed between the two second support (502). The rotating frame (4) has a second movable hole at the position of each of the multiple fixing rods (503).

9. A bridge crack repair device according to claim 4, characterized in that: The inner wall of the bridge reinforcement injection tube (5) is fixed with multiple prisms (504). The cross-section of the prism (504) is arc-shaped. The piston (601) is provided with matching grooves (6011) at the positions of the multiple prisms (504).

10. A bridge crack repair device according to claim 5, characterized in that: The fixed column (3) has a second rotating hole at the position corresponding to the spline shaft (701), and the spline shaft (701) is connected to the second rotating hole through a bearing.

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