Road and bridge crack maintenance device

Abstract

The utility model discloses a road and bridge crack maintenance device, and belongs to the technical field of road and bridge crack maintenance. Comprising a glue injector and a detention device, the glue injector and the detention device are connected in an inserted and matched mode and are in threaded connection through a threaded structure, the glue injector comprises a glue barrel, an inserted pipe, an external thread sealing sleeve and a glue pushing lead screw, and the detention device comprises a T-shaped pipe, a blocking column, a limiting disc and a conical screw pipe. The retention device can be installed at the position of a preset drill hole in a limited mode, the effect that a joint filling agent is squeezed into a crack in an injection mode can be achieved through threaded connection of the glue injector and the retention device, the retention device can achieve the blocking purpose by locking the blocking column after the glue injector is removed, the residual joint filling agent in the glue barrel can be used for the next drill hole, the problem of waste of the joint filling agent is solved, and the construction efficiency is improved. A large number of glue injectors do not need to be used and carried, and the problems of transportation and carrying difficulty are solved.

Description

Technical Field

[0001] This application relates to the field of road and bridge crack repair technology, and more specifically, to a road and bridge crack repair device. Background Technology

[0002] The main function of bridge crack injection devices is to seal and reinforce bridge cracks, prevent rain and snow from seeping in and corroding the steel structure, prevent frost damage, and enhance the bridge's compressive strength and moisture resistance. Specialized adhesives (such as epoxy resin) are injected into the cracks through the injection device, providing moisture protection, rust prevention, reinforcement, and compressive strength, thereby extending the bridge's service life. A concrete crack repair injection device, disclosed in patent number CN217538016U, features a locking block on its surface that slides into an annular groove after the pull rod is fully pulled up and rotated counterclockwise. When injecting adhesive, after fixing the injector, pull up the lever again and rotate it clockwise to release the lever. Under the pressure of the spring, automatic pressure injection of adhesive is achieved. Regarding the above-mentioned related technologies, the inventor believes that the following defects still exist: If the amount of sealant in the injector is insufficient during the use of the injector mentioned in the literature, it is easy to cause a decline in the quality of crack repair. If the amount of sealant in the injector is excessive, the injector cannot be removed and used for the next crack, resulting in waste of sealant. In addition, the injector occupies a lot of space and is difficult to carry. In view of this, we propose a road and bridge crack repair device. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] The purpose of this application is to provide a road and bridge crack repair device, which solves the technical problems mentioned in the prior art, such as insufficient filler in the injector leading to a decline in crack repair quality, and excessive filler that cannot be removed for use in the next crack, resulting in filler waste. Furthermore, the injector occupies a large space, making it difficult to carry. This application achieves a device where the injector and retainer are detachable. The retainer can be fixed at a pre-drilled hole, and the injector and retainer are threadedly connected, allowing for filler injection into the crack. After removing the injector, the retainer itself can be locked with a plug, allowing the remaining filler in the cartridge to be used in the next drilled hole. This solves the problem of filler waste, eliminates the need for large quantities of injectors, and resolves transportation and carrying difficulties.

[0005] 2. Technical Solution

[0006] This application provides a road and bridge crack repair device, comprising: an injection device and a retention device, wherein the injection device and the retention device are plugged into each other and connected by a threaded structure.

[0007] The glue injector includes a glue cylinder, a plug tube, an external threaded sleeve, and a glue-pushing screw. The glue-pushing screw is fixedly connected to a piston, which is slidably disposed inside the glue cylinder. The external threaded sleeve is threadedly installed inside one end of the glue cylinder. An internal threaded sleeve is fixedly connected to the external threaded sleeve. The glue-pushing screw is threadedly engaged with the internal threaded sleeve. The other end of the glue cylinder is fixedly connected to a plug tube.

[0008] The retainer includes a T-shaped tube, a plug, a limiting plate, and a tapered helical tube. The plug is threaded onto the T-shaped tube, and the insertion tube is inserted into the T-shaped tube and threadedly connected to it. The limiting plate is fixedly connected to a third nut, and the limiting plate and the third nut are fixedly sleeved on the outside of the T-shaped tube. The T-shaped tube is fixedly connected to the tapered helical tube, and a sealing ring is detachably sleeved on the T-shaped tube.

[0009] By adopting the above technical solution, the bridge crack repair device consists of an injector and a retainer connected by insertion and thread. Before use, a hole is pre-drilled at the selected location of the bridge crack. The retainer consists of a T-shaped tube, a plug, a limiting plate, and a tapered threaded tube. Using a wrench, the third nut is turned to install the tapered threaded tube into the drilled hole until the limiting plate touches the bridge surface. The sealing ring installed on the T-shaped tube is then forced into the drilled hole, and the plug is threaded on the T-shaped tube. When it is necessary to inject adhesive into the drilled hole, the injector consists of a glue tube, a plug pipe, an external threaded sleeve, and a pusher screw. The plug pipe is inserted into the T-shaped tube, and the plug pipe can be threaded into the T-shaped tube. The glue tube is pre-filled with adhesive. Adding sealant, by rotating the push screw, which is threadedly engaged with the internal threaded sleeve, the push screw forces the piston to move along the inside of the sealant tube. This allows the sealant in the tube to be delivered through the connector to the tapered screw tube, and then squeezed into the borehole, thus achieving the purpose of squeezing sealant into the crack. Furthermore, the sealant injector can be detached from the retention device, and by locking the plug, the retention device can be sealed to prevent sealant from being squeezed into the crack. Therefore, the sealant remaining in the tube can be used for the next borehole, solving the problem of sealant waste. Additionally, because the sealant injector and retention device can be separated, and the sealant injector itself is relatively large, there is no need to use or carry large quantities of sealant injectors, solving transportation and carrying difficulties.

[0010] Optionally, the end of the rubber tube away from the insertion tube is fixedly provided with two gripping blocks, and the end of the rubber tube away from the insertion tube is provided with an internal thread structure for threaded installation of an external threaded sleeve.

[0011] By adopting the above technical solution, the glue tube is equipped with two grips for easy holding, which facilitates the rotation of the glue pusher screw. The external threaded sleeve is threadedly connected to the glue tube, and a sealing ring structure is provided on the external threaded sleeve. Thus, by removing the external threaded sleeve, sealant can be added to the inside of the glue tube.

[0012] Optionally, the insertion tube includes a rear conical tube and a front conical tube. The rear conical tube is fixedly fitted with a first nut. The rear conical tube has an external threaded groove near the first nut. The T-shaped tube has a rear conical cavity and a front conical cavity. The rear conical tube is sealed and inserted into the rear conical cavity, and the front conical tube is sealed and inserted into the front conical cavity.

[0013] By adopting the above technical solution, the rear conical tube is sealed and inserted into the rear conical cavity, while the front conical tube is sealed and inserted into the front conical cavity. As a result, the sealant injected into the conical spiral tube by the glue injector will not seep out, but will be squeezed into the borehole.

[0014] Optionally, a second nut is fixedly provided at the end of the T-shaped tube away from the tapered helical tube, and the second nut is threadedly connected to the external thread groove on the rear tapered tube.

[0015] By adopting the above technical solution, the rear tapered tube is inserted into the T-shaped tube and connected to the external thread groove on the rear tapered tube by the second nut, so that the rear tapered tube is sealed and inserted into the rear tapered cavity, while the front tapered tube is sealed and inserted into the front tapered cavity.

[0016] Optionally, the tapered helical tube is provided with multiple threaded sections along its tapered outer surface, and a glue outlet hole is provided at the center of the tapered helical tube.

[0017] By adopting the above technical solution, the tapered helical tube, by setting multiple threaded sections, can be installed into a pre-drilled hole at the location of a bridge crack by turning the third nut with a wrench.

[0018] Optionally, a throttle handle is fixedly provided at the end of the pusher screw away from the piston.

[0019] By adopting the above technical solution, the end of the push screw can be easily rotated manually by a fixed handle, making it convenient to use and operate.

[0020] 3. Beneficial effects

[0021] One or more technical solutions provided in this application have at least the following technical effects or advantages: the glue injector and the retention device are detachable, the retention device can be limited and installed at the preset drill hole, and the glue injector and the retention device are threadedly connected to achieve the effect of injecting the sealant into the crack. Moreover, after the glue injector is removed, the retention device itself can achieve the purpose of sealing by locking the plug, so that the sealant remaining in the glue tube can be used for the next drill hole, which solves the problem of sealant waste, eliminates the need to use and carry a large number of glue injectors, and solves the problem of transportation and carrying difficulties. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a road and bridge crack repair device disclosed in a preferred embodiment of this application;

[0023] Figure 2 This is a partial cross-sectional view of the retention device of a road and bridge crack repair device disclosed in a preferred embodiment of this application;

[0024] Figure 3 This is a partial cross-sectional view of the glue injector of a road and bridge crack repair device disclosed in a preferred embodiment of this application;

[0025] The following are the labels in the diagram: 10. Glue dispenser; 1. Glue tube; 11. Grip block; 2. Insert tube; 21. Rear tapered tube; 211. External threaded groove; 22. Front tapered tube; 23. First nut; 3. External threaded sleeve; 31. Internal threaded sleeve; 4. Glue pusher screw; 41. Piston; 42. Turning handle; 20. Retention device; 5. T-tube; 51. Rear tapered cavity; 52. Front tapered cavity; 53. Second nut; 54. Sealing ring; 6. Plug; 7. Limiting plate; 71. Third nut; 8. Tapered screw tube; 81. Threaded section; 82. Glue outlet. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1 to 3 This application provides a road and bridge crack repair device, comprising: an injection device 10 and a retention device 20, wherein the injection device 10 and the retention device 20 are connected by an insertion fit and are connected by a threaded structure.

[0028] The glue dispenser 10 includes a glue cylinder 1, a plug tube 2, an external threaded sleeve 3, and a glue pusher 4. The glue pusher 4 is fixedly connected to a piston 41, which is slidably disposed inside the glue cylinder 1. The external threaded sleeve 3 is threadedly installed inside one end of the glue cylinder 1. The external threaded sleeve 3 is fixedly connected to an internal threaded sleeve 31. The glue pusher 4 is threadedly engaged with the internal threaded sleeve 31. The other end of the glue cylinder 1 is fixedly connected to the plug tube 2.

[0029] The retainer 20 includes a T-shaped tube 5, a plug 6, a limiting disc 7, and a tapered helical tube 8. The plug 6 is threaded onto the T-shaped tube 5. The insertion tube 2 is inserted into the T-shaped tube 5 and threadedly connected to it. The limiting disc 7 is fixedly connected to a third nut 71, and the limiting disc 7 and the third nut 71 are fixedly sleeved on the outside of the T-shaped tube 5. The T-shaped tube 5 is fixedly connected to the tapered helical tube 8, and a sealing ring 54 is detachably sleeved on the T-shaped tube 5. This road and bridge crack repair device consists of an injection device 10 and... The retainer 20 is composed of a plug-in and threaded connection. Before use, a hole is pre-drilled at the selected location of the bridge crack. The retainer 20 consists of a T-shaped tube 5, a plug 6, a limiting plate 7, and a tapered threaded tube 8. Using a wrench, the third nut 71 is turned to install the tapered threaded tube 8 into the drilled hole until the limiting plate 7 touches the bridge surface. The sealing ring 54 installed on the T-shaped tube 5 is then forced into the drilled hole. The plug 6 is threaded on the T-shaped tube 5. When it is necessary to inject adhesive into the drilled hole, the adhesive injector... 10 consists of a glue tube 1, a connector 2, an external threaded sleeve 3, and a pusher screw 4. The connector 2 is inserted into the T-shaped tube 5, and the connector 2 can be threadedly connected to the T-shaped tube 5. The glue tube 1 is pre-filled with sealant. By rotating the pusher screw 4, which is threadedly engaged with the internal threaded sleeve 31, the pusher screw 4 forces the piston 41 to move along the inside of the glue tube 1, so that the sealant in the glue tube 1 is delivered from the connector 2 to the tapered screw tube 8, and then squeezed into the borehole by the tapered screw tube 8. This allows the sealant to be squeezed into the crack, and the injector 10 can be detached from the retainer 20. By locking the plug 6, the retainer 20 can be sealed to prevent the sealant from being squeezed into the crack. Thus, the sealant remaining in the cartridge 1 can be used for the next drilling, solving the problem of sealant waste. At the same time, since the injector 10 and the retainer 20 can be separated, and the injector 10 itself is relatively large, there is no need to use or carry a large number of injectors 10, solving the problem of transportation and carrying difficulties.

[0030] Reference Figure 1 and Figure 3 Two grips 11 are fixedly provided at the end of the glue tube 1 away from the insertion tube 2. An internal thread structure is provided at the end of the glue tube 1 away from the insertion tube 2 for threaded installation of the external threaded sleeve 3. The glue tube 1 is easy to hold by the two grips 11, which makes it easy to rotate the push glue screw 4. The external threaded sleeve 3 is threadedly connected to the glue tube 1, and a sealing ring structure is provided on the external threaded sleeve 3. Thus, by removing the external threaded sleeve 3, sealant can be added to the inside of the glue tube 1.

[0031] Reference Figure 2 and Figure 3The insertion tube 2 includes a rear tapered tube 21 and a front tapered tube 22. The rear tapered tube 21 is fixedly fitted with a first nut 23. The rear tapered tube 21 has an external threaded groove 211 near the first nut 23. The T-shaped tube 5 is provided with a rear tapered cavity 51 and a front tapered cavity 52. ​​The rear tapered tube 21 is sealed and inserted into the rear tapered cavity 51, and the front tapered tube 22 is sealed and inserted into the front tapered cavity 52. ​​Thus, the sealant injected into the tapered screw tube 8 by the glue injector 10 will not seep out, but will be squeezed into the drill hole.

[0032] Reference Figure 2 and Figure 3 A second nut 53 is fixedly provided at the end of the T-shaped tube 5 away from the tapered screw tube 8. The second nut 53 is threadedly connected to the external thread groove 211 on the rear tapered tube 21. The rear tapered tube 21 is inserted into the T-shaped tube 5 and is threadedly connected to the external thread groove 211 on the rear tapered tube 21 through the second nut 53, so that the rear tapered tube 21 is sealed and inserted into the rear tapered cavity 51, while the front tapered tube 22 is sealed and inserted into the front tapered cavity 52.

[0033] Reference Figure 1 and Figure 2 The tapered screw tube 8 has multiple threaded sections 81 fixed along its tapered outer surface. A glue outlet hole 82 is opened at the center of the tapered screw tube 8. By setting multiple threaded sections 81, the tapered screw tube 8 can be installed in the pre-drilled hole at the location of the bridge crack by turning the third nut 71 with a wrench.

[0034] Reference Figure 1 and Figure 3 The end of the push screw 4 away from the piston 41 is fixedly provided with a handle 42. The end of the push screw 4 can be easily rotated manually by the fixed handle 42, making it convenient to use and operate.

[0035] Working principle: This bridge crack repair device consists of an injector 10 and a retainer 20 connected by insertion and thread. Before use, a hole is drilled at the selected location of the bridge crack. The retainer 20 consists of a T-shaped tube 5, a plug 6, a limiting plate 7, and a tapered screw tube 8. Using a wrench, the third nut 71 is turned to thread the tapered screw tube 8 into the drilled hole until the limiting plate 7 touches the bridge surface. The sealing ring 54 installed on the T-shaped tube 5 is then squeezed into the drilled hole. The plug 6 is threaded on the T-shaped tube 5. When it is necessary to inject adhesive into the drilled hole, the injector 10 consists of a glue cylinder 1, an insert pipe 2, an external threaded sleeve 3, and a pusher screw 4. The insert pipe 2 is inserted into the T-shaped tube 5, and the insert pipe 2 can be threaded into the T-shaped tube 5. The glue cylinder 1 is pre-filled with adhesive. With sealant, by rotating the push screw 4, which is threadedly connected to the internal threaded sleeve 31, the push screw 4 forces the piston 41 to move along the inside of the sealant cylinder 1. This causes the sealant in the sealant cylinder 1 to be transported through the insertion pipe 2 to the tapered screw tube 8, and then squeezed into the borehole through the tapered screw tube 8. This achieves the purpose of squeezing sealant into the crack. Furthermore, the sealant injector 10 can be detached from the retainer 20, and by locking the plug 6, the retainer 20 can be sealed to prevent the sealant from being squeezed into the crack. Thus, the sealant remaining in the sealant cylinder 1 can be used for the next borehole, solving the problem of sealant waste. At the same time, since the sealant injector 10 and the retainer 20 can be separated, and the sealant injector 10 itself is relatively large, there is no need to use or carry a large number of sealant injectors 10, solving the problem of transportation and carrying difficulties.

Claims

1. A road and bridge crack repair device, characterized in that: It includes: a dispensing device (10) and a retainer (20), wherein the dispensing device (10) and the retainer (20) are connected by a plug-in fit and are connected by a threaded structure; The glue injector (10) includes a glue cylinder (1), a plug tube (2), an external threaded sleeve (3), and a glue-pushing screw (4). The glue-pushing screw (4) is fixedly connected to a piston (41), which is slidably disposed inside the glue cylinder (1). The external threaded sleeve (3) is threadedly installed inside one end of the glue cylinder (1). The external threaded sleeve (3) is fixedly connected to an internal threaded sleeve (31). The glue-pushing screw (4) is threadedly sleeved with the internal threaded sleeve (31). The other end of the glue cylinder (1) is fixedly connected to the plug tube (2). The retainer (20) includes a T-shaped tube (5), a plug (6), a limiting plate (7), and a tapered screw tube (8). The plug (6) is threaded onto the T-shaped tube (5). The insertion tube (2) is inserted into the T-shaped tube (5) and threaded onto the T-shaped tube (5). The limiting plate (7) is fixedly connected to a third nut (71). The limiting plate (7) and the third nut (71) are fixedly sleeved on the outside of the T-shaped tube (5). The T-shaped tube (5) is fixedly connected to the tapered screw tube (8). A sealing ring (54) is detachably sleeved on the T-shaped tube (5).

2. The road and bridge crack repair device according to claim 1, characterized in that: Two grips (11) are fixedly provided at the end of the rubber tube (1) away from the insertion tube (2). An internal thread structure is provided at the end of the rubber tube (1) away from the insertion tube (2) for threaded installation of the external threaded sleeve (3).

3. The road and bridge crack repair device according to claim 2, characterized in that: The insertion tube (2) includes a rear conical tube (21) and a front conical tube (22). The rear conical tube (21) is fixedly fitted with a first nut (23). The rear conical tube (21) has an external thread groove (211) near the first nut (23). The T-shaped tube (5) is provided with a rear conical cavity (51) and a front conical cavity (52). The rear conical tube (21) is sealed and inserted into the rear conical cavity (51), and the front conical tube (22) is sealed and inserted into the front conical cavity (52).

4. A road and bridge crack repair device according to claim 3, characterized in that: The T-shaped tube (5) is fixed with a second nut (53) at the end away from the tapered helical tube (8), and the second nut (53) is threadedly connected to the external thread groove (211) on the rear tapered tube (21).

5. A road and bridge crack repair device according to claim 1, characterized in that: The tapered helical tube (8) has multiple threaded sections (81) fixed along its tapered outer surface, and a glue outlet hole (82) is opened at the center of the tapered helical tube (8).

6. The road and bridge crack repair device according to claim 1, characterized in that: The pusher screw (4) is fixed with a throttle (42) at the end away from the piston (41).

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