A backpack type road surface repairing device

By designing the grouting and switching components of the backpack-type pavement repair device, the problem that existing devices cannot adapt to the repair of different gaps or pores is solved, achieving the effect of flexibly controlling the amount of grout output and reducing weight, which is suitable for concrete pavement repair in building construction.

CN224494823UActive Publication Date: 2026-07-14JIAOJIA GOLD MINE OF SHANDONG GOLD MINING (LAIZHOU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAOJIA GOLD MINE OF SHANDONG GOLD MINING (LAIZHOU) CO LTD
Filing Date
2025-04-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing repair devices cannot meet the repair needs of cracks or pores of different sizes, and are large in size and weight, making it difficult to efficiently repair concrete cracks in small areas.

Method used

A backpack-type road repair device was designed. Through the grouting component and the switching component, the connection and switching of different grouting heads and grout outlet pipes can be realized to meet the repair needs of cracks or pores of different sizes. The power output is reduced by hand-cranking, which reduces the weight of the device.

Benefits of technology

It improves the practicality and comfort of the repair device, allows for flexible control of the slurry output, adapts to the repair needs of different cracks or pores, reduces costs and weight, and is easy to carry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of knapsack type pavement repairing device, including tank, grouting assembly is arranged in tank, grouting assembly is connected with the out of slurry component and the switching component rotationally arranged on the out of slurry component in tank side, switching component includes first grouting head, second grouting head and third grouting head, grouting assembly is used to inject slurry into the out of slurry component, switching first grouting head, second grouting head and third grouting head and the connection state between the out of slurry component in rotation, by the effect under the grouting assembly slurry is injected into the out of slurry pipe, and switching first grouting head, second grouting head and third grouting head and the connection state between the out of slurry pipe are switched by rotating switching component, to meet the needs of different size gap or aperture repair, greatly improve practicality.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically to a backpack-type road repair device. Background Technology

[0002] In recent years, my country's highway construction industry has developed rapidly, and the task of highway maintenance has also increased accordingly, especially the repair of cracks in concrete pavement. Because concrete is a brittle and non-homogeneous engineering material, it contains a large number of cracks and pores. The presence of these cracks and pores will greatly reduce the waterproof performance of the concrete structure. If not handled properly, there will be a great risk of water seepage, or even leakage, which will seriously affect the use function of the building. Therefore, the repair of concrete cracks is particularly important.

[0003] Currently, most repair devices on the market cannot meet the needs of cracks or pores of different sizes due to the single grouting head. They are difficult to insert into the cracks or pores during repair, resulting in difficulty in controlling the amount of grout produced, leading to problems such as excessive or insufficient grout production. In addition, the repair devices are large in size and weight, which is extremely inconvenient when repairing concrete in narrow areas.

[0004] Chinese patent CN218493183U discloses a portable concrete repair device. When a person uses the device, the servo motor power is turned on, and the transmission rod drives the mixing rod to rotate, which facilitates the mixing of the repair agent and prevents the repair agent from solidifying. The mixed repair agent can be sprayed out through the outlet pipe to efficiently repair cracks. However, this device cannot meet the repair needs of cracks or pores of different sizes, and its practicality is low. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a backpack-type road repair device. This device injects grout into the outlet pipe under the action of the grouting component, and rotates the switching component to switch the connection status between the first, second, and third grouting heads and the outlet pipe, thereby meeting the needs of repairing cracks or pores of different sizes and greatly improving its practicality.

[0006] The technical solution of this utility model is as follows:

[0007] A backpack-type road repair device includes a tank body, in which a grouting assembly is disposed. A grout outlet assembly is connected to one side of the tank body, and a switching assembly rotatably disposed on the grout outlet assembly. The switching assembly includes a first grouting head, a second grouting head, and a third grouting head. The grouting assembly is used to inject grout into the grout outlet assembly. The switching assembly switches the connection state between the first grouting head, the second grouting head, and the third grouting head and the grout outlet assembly during rotation.

[0008] As a preferred embodiment, the grouting assembly includes a lead screw rotatably disposed within the tank, a grouting plate slidably disposed on the lead screw, a slider fixedly connected to the grouting plate, a first bevel tooth fixedly connected to the bottom end of the lead screw, a fixed plate fixedly connected to the tank, a rotating rod rotatably disposed on the fixed plate, a second bevel tooth fixedly connected to one end of the rotating rod, and a first handwheel fixedly connected to the other end of the rotating rod. The first bevel tooth and the second bevel tooth mesh with each other, and the slider is slidably disposed on the tank.

[0009] As a preferred embodiment, the slurry discharge assembly includes a slurry discharge port fixedly opened on the tank body and a slurry discharge pipe rotatably disposed on the slurry discharge port.

[0010] As a preferred embodiment, the switching assembly further includes a connecting plate fixedly mounted on the grout outlet pipe, a rotating shaft rotatably mounted on the connecting plate, a turntable fixedly connected to one end of the rotating shaft, a second handwheel fixedly connected to the other end of the rotating shaft, and a connecting pipe fixedly connected to the turntable. The first grouting head, the second grouting head, and the third grouting head are slidably mounted in the connecting pipe, and the connecting pipe cooperates with the grout outlet pipe.

[0011] As a preferred embodiment, the first grouting head, the second grouting head, and the third grouting head are of different sizes.

[0012] As a preferred embodiment, the tank is provided with a carrying strap.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model is equipped with a grouting component and a grouting component. After the user wears the device on their back, they hold the grouting pipe with one hand and turn the first handwheel with the other hand to rotate the second bevel gear, which in turn drives the first bevel gear and the lead screw to rotate. The grouting plate moves up and down on the lead screw, injecting grout from the grouting port into the grouting pipe for grouting repair. The hand-cranking method not only reduces power output and costs but also lightens the weight of the device and increases user comfort. At the same time, it allows for easy control of the grouting volume. The rotating grouting pipe can be rotated to the side of the tank for storage when the device is not in use, making it convenient to carry.

[0015] This invention also includes a switching component. When faced with cracks or pores of different sizes, the user can turn the second handwheel to rotate the turntable on the grout outlet pipe. The first, second, and third grouting heads are connected to the grout outlet pipe through connecting pipes to perform grouting repair work. When selecting different grouting heads, the first, second, or third grouting head can be pulled out of the connecting pipe and inserted into the crack or pore for grouting. This can meet the repair needs of cracks or pores of different sizes and increase the practicality of the device.

[0016] In summary, this utility model has the advantages of strong practicality and good repair effect, and is suitable for the field of building repair technology. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of a backpack-mounted road repair device;

[0019] Figure 2 This is a structural diagram of the switching component;

[0020] Figure 3 This is a schematic diagram showing the state of the grouting plate as it descends;

[0021] Figure 4 This is a schematic diagram showing the state of the turntable as it rotates;

[0022] Reference numerals: 1. Tank body; 2. Grouting assembly; 21. Screw; 22. Grouting plate; 23. Slider; 24. First conical tooth; 25. Fixing plate; 26. Rotating rod; 27. Second conical tooth; 28. First handwheel; 3. Grouting assembly; 31. Grouting outlet; 32. Grouting pipe; 4. Switching assembly; 41. First grouting head; 42. Second grouting head; 43. Third grouting head; 44. Connecting plate; 45. Rotating shaft; 46. Turntable; 47. Second handwheel; 48. Connecting pipe; 5. Shoulder strap. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Example 1

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] like Figures 1 to 4 As shown, a backpack-type road repair device includes a tank 1, a grouting assembly 2 disposed inside the tank 1, a grout outlet assembly 3 connected to one side of the tank 1, and a switching assembly 4 rotatably disposed on the grout outlet assembly 3. The switching assembly 4 includes a first grouting head 41, a second grouting head 42, and a third grouting head 43. The grouting assembly 2 is used to inject grout into the grout outlet assembly 3. The switching assembly 4 switches the connection state between the first grouting head 41, the second grouting head 42, and the third grouting head 43 and the grout outlet assembly 3 during rotation.

[0027] like Figure 1 and Figure 3As shown, the grouting assembly 2 includes a lead screw 21 rotatably disposed within the tank body 1, a grouting plate 22 slidably disposed on the lead screw 21, a slider 23 fixedly connected to the grouting plate 22, a first bevel tooth 24 fixedly connected to the bottom end of the lead screw 21, a fixing plate 25 fixedly connected to the tank body 1, a rotating rod 26 rotatably disposed on the fixing plate 25, a second bevel tooth 27 fixedly connected to one end of the rotating rod 26, and a first handwheel 28 fixedly connected to the other end of the rotating rod 26. The first bevel tooth 24 meshes with the second bevel tooth 27, and the slider... Block 23 is slidably mounted on tank body 1. When in use, the user wears the device on their back, holds the slurry outlet pipe 32 with one hand, and rotates the first handwheel 28 with the other hand to rotate the second bevel tooth 27, thereby driving the first bevel tooth 24 and the screw 21 to rotate. The grouting plate 22 moves up and down on the screw 21, injecting slurry from the slurry outlet 31 into the slurry outlet pipe 32 for grouting repair. The hand-cranking method not only reduces power output and costs, but also reduces the weight of the device and increases user comfort, while also allowing for convenient control of the slurry output.

[0028] like Figure 2 As shown, the slurry dispensing assembly 3 includes a slurry outlet 31 fixedly opened on the tank body 1 and a slurry dispensing pipe 32 rotatably set on the slurry outlet 31. In use, the slurry dispensing pipe 32 can be rotated to the side of the tank body 1 for storage when the device is not in use, making it convenient to carry.

[0029] like Figure 2 and Figure 4 As shown, the switching assembly 4 also includes a connecting plate 44 fixedly mounted on the grout outlet pipe 32, a rotating shaft 45 rotatably mounted on the connecting plate 44, a turntable 46 fixedly connected to one end of the rotating shaft 45, a second handwheel 47 fixedly connected to the other end of the rotating shaft 45, and a connecting pipe 48 fixedly connected to the turntable 46. The first grouting head 41, the second grouting head 42, and the third grouting head 43 are slidably mounted in the connecting pipe 48. The connecting pipe 48 cooperates with the grout outlet pipe 32. In use, when facing cracks or pores of different sizes, the user rotates the second handwheel 47 to make the turntable 46 rotate on the grout outlet pipe 32. After the first grouting head 41, the second grouting head 42, and the third grouting head 43 are connected to the grout outlet pipe 32 through the connecting pipe 48, grouting repair work can be performed.

[0030] like Figure 2 As shown, the first grouting head 41, the second grouting head 42, and the third grouting head 43 are of different sizes. In use, when selecting different grouting heads, the first grouting head 41, the second grouting head 42, or the third grouting head 43 can be pulled out of the connecting pipe 48 and inserted into the gap or hole for grouting. This can meet the repair needs of gaps or holes of different sizes and increase the practicality of the device.

[0031] like Figure 1As shown, the can body 1 is equipped with a shoulder strap 5, which makes it convenient for users to carry when facing narrow gaps or holes.

[0032] Example 2

[0033] like Figure 1 As shown, the components that are the same as or corresponding to those in Embodiment 1 are marked with the same reference numerals as those in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is that anti-slip textures are provided on the first handwheel 28 and the second handwheel 47.

[0034] In this embodiment, anti-slip textures are provided on the first handwheel 28 and the second handwheel 47 to increase friction and prevent slippage.

[0035] Working process: The user carries the device on their back using the shoulder strap 5. Then, when selecting different grouting heads according to different sizes of gaps or holes, the user turns the second handwheel 47 to drive the turntable 46 to rotate until the connecting pipe 48 is connected to the grout outlet pipe 32. Then, the user pulls out the first grouting head 41, the second grouting head 42, or the third grouting head 43. Then, the user turns the first handwheel 28 to drive the second bevel tooth 27 to rotate, thereby driving the first bevel tooth 24 and the screw 21 to rotate. The grouting plate 22 moves up and down with the screw 21 to inject grout into the grouting pipe 32 through the grout outlet 31 for repair grouting.

[0036] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0037] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0038] The above description, in conjunction with the accompanying drawings, is merely a preferred embodiment of the present utility model. However, the present utility model is not limited to the above-described embodiments. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present utility model. These modifications and improvements should also be considered within the scope of protection of the present utility model and will not affect the effectiveness and practicality of the implementation of the present utility model.

Claims

1. A backpack-type road repair device, comprising a tank (1), characterized in that: The tank (1) is equipped with a grouting assembly (2). A grouting assembly (3) and a switching assembly (4) rotatably mounted on the grouting assembly (3) are connected to one side of the tank (1). The switching assembly (4) includes a first grouting head (41), a second grouting head (42), and a third grouting head (43). The grouting assembly (2) is used to inject grout into the grouting assembly (3). The switching assembly (4) switches the connection state between the first grouting head (41), the second grouting head (42), and the third grouting head (43) and the grouting assembly (3) during rotation.

2. The backpack-type road repair device according to claim 1, characterized in that: The grouting assembly (2) includes a lead screw (21) rotatably disposed in the tank body (1), a grouting plate (22) slidably disposed on the lead screw (21), a slider (23) fixedly connected to the grouting plate (22), a first bevel tooth (24) fixedly connected to the bottom end of the lead screw (21), a fixing plate (25) fixedly connected to the tank body (1), a rotating rod (26) rotatably disposed on the fixing plate (25), a second bevel tooth (27) fixedly connected to one end of the rotating rod (26), and a first handwheel (28) fixedly connected to the other end of the rotating rod (26). The first bevel tooth (24) meshes with the second bevel tooth (27), and the slider (23) is slidably disposed on the tank body (1).

3. The backpack-type road repair device according to claim 1, characterized in that: The slurry discharge assembly (3) includes a slurry outlet (31) fixedly opened on the tank body (1) and a slurry discharge pipe (32) rotatably set on the slurry outlet (31).

4. The backpack-type road repair device according to claim 3, characterized in that: The switching assembly (4) further includes a connecting plate (44) fixedly mounted on the slurry outlet pipe (32), a rotating shaft (45) rotatably mounted on the connecting plate (44), a turntable (46) fixedly connected to one end of the rotating shaft (45), a second handwheel (47) fixedly connected to the other end of the rotating shaft (45), and a connecting pipe (48) fixedly connected to the turntable (46). The first grouting head (41), the second grouting head (42), and the third grouting head (43) are slidably mounted in the connecting pipe (48), and the connecting pipe (48) cooperates with the slurry outlet pipe (32).

5. The backpack-type road repair device according to claim 1, characterized in that: The first grouting head (41), the second grouting head (42), and the third grouting head (43) are of different sizes.

6. The backpack-type road repair device according to claim 1, characterized in that: The tank (1) is provided with a shoulder strap (5).