Concrete crack repairing equipment

Abstract

The utility model provides concrete crack repairing equipment which comprises a base, universal wheels are fixedly arranged at the four corners of the bottom end of the base, an L-shaped plate is fixedly arranged on one side of the top end of the base, a tank is fixedly arranged at the top end of the L-shaped plate, a stirring mechanism is arranged in the tank, and a discharging mechanism is arranged at the bottom end of the tank. A first transmission mechanism used for driving the stirring mechanism and the discharging mechanism is arranged on one side of the tank body, and a second transmission mechanism is arranged on one side of the top end of the base. Through the arrangement of the second transmission mechanism, a U-shaped piece of the second transmission mechanism can drive an injection nozzle to move up and down, in cooperation with universal wheels, concrete cracks at the high position can be repaired, the injection nozzle can be taken down to repair concrete cracks at the low position, and through the second transmission mechanism, an opening and closing mechanism can be driven to operate, so that the concrete cracks are repaired. And therefore, opening and closing of a feeding opening of a discharging piece of the discharging mechanism can be controlled, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete, in particular to a device for repairing concrete cracks. Background Art

[0002] At present, when using the existing concrete repair device, liquid material is injected into the crack by operating the injection nozzle. However, when repairing cracks at higher places, it is necessary to use external tools to raise the height of the injection nozzle to match the high cracks, which is inconvenient to use and has low practicality.

[0003] The Chinese utility model patent (application number: 201620918941.8) discloses "a crack repair device for civil engineering, including a device base, a roller, a support arm, a hook, a material barrel, a rotatable support shaft, a swing handle, a feeding hopper, a heat-insulating cover, a high-temperature resistant material guide hose, a valve, a hanging ring, a material injection nozzle, a heat-insulating handle cover, a ceramic liner, a spiral heating wire, a power supply device and a wire. The utility model is small in size, can be moved at will, and has strong flexibility. When repairing concrete cracks, the material used for repair can be added to the material barrel for heating and melting, such as asphalt, resin, and solid glue. The melted liquid material is injected into the crack through the injection nozzle, and the amount of repair material injected can be accurately controlled to reduce waste. In addition, the above-mentioned repair material has strong adhesion and good repair effect. The device has a simple structure and is easy to operate, with low investment cost, safety and efficiency, and is easy to promote." The above patent can prove the defects of the existing technology.

[0004] Therefore, we have made improvements to this and proposed a concrete crack repair device. Summary of the Invention

[0005] The purpose of the utility model is to address the existing concrete repair device. When in use, liquid material is injected into the crack by operating the injection nozzle. However, when repairing cracks at higher places, it is necessary to use external tools to raise the height of the injection nozzle to match the high cracks, which is inconvenient to use and has low practicality.

[0006] In order to achieve the above-mentioned purpose of the invention, the utility model provides a concrete crack repair device to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] It includes a base, and universal wheels are fixedly provided at the four corners of the bottom end of the base, an L-shaped plate is fixedly provided on one side of the top end of the base, a tank body is fixedly provided on the top end of the L-shaped plate, a stirring mechanism is provided in the tank body, a discharging mechanism is provided at the bottom end of the tank body, a first transmission mechanism for driving the stirring mechanism and the discharging mechanism is provided on one side of the tank body, a second transmission mechanism is provided on one side of the top end of the base, an opening and closing mechanism for matching the discharging mechanism is provided between the second transmission mechanism, the tank body and the stirring mechanism, and a heating liner is fixedly provided in the tank body.

[0009] As the preferred technical solution of this application, the stirring mechanism includes a cylinder, the top of which is rotatably connected to the middle of the top of the tank body, a number of first stirring rods are equidistantly fixed on both sides of the cylinder, a second stirring rod is fixed at the bottom of both sides of the cylinder, and a first gear is fixed at the top of the cylinder.

[0010] As the preferred technical solution of the present application, the discharging mechanism includes a discharging piece, which is fixedly mounted on the bottom end of the tank body, and the feed port of the discharging piece is communicated with the interior of the tank body, and an auger is rotatably connected to the inside of the discharging piece.

[0011] As a preferred technical solution of the present application, the discharge mechanism further includes a high-temperature resistant hose, one end of which is connected to the discharge port of the discharge piece, and the other end of which is connected to the injection nozzle.

[0012] As a preferred technical solution of the present application, the first transmission mechanism includes a motor, which is arranged at the bottom of one side of the tank body. A first bevel gear and a first transmission shaft are fixed on the output shaft of the motor, and one end of the first transmission shaft passes through the discharge piece and is fixedly connected to one end of the auger.

[0013] As a preferred technical solution of the present application, the first transmission mechanism also includes a second bevel gear, the second bevel gear is meshed with the first bevel gear, a second transmission shaft is fixed on the second bevel gear, a second gear is fixed on the top of the second transmission shaft, the second gear is meshed with a third gear, a first movable shaft is fixed on the third gear, and the first movable shaft is rotatably connected to one side of the top of the tank body, a fourth gear is fixed on the bottom end of the first movable shaft, and the fourth gear is meshed with the first gear, an L-shaped positioning plate is fixed on one side of the motor, one side of the L-shaped positioning plate is fixedly connected to the tank body, and the second transmission shaft is rotatably connected to the L-shaped positioning plate.

[0014] As a preferred technical solution of the present application, the second transmission mechanism includes a stepper motor, which is fixedly mounted on the base, and a threaded rod is fixedly provided on the output shaft of the stepper motor, a limiting rod is provided on one side of the threaded rod, and the bottom end of the limiting rod is fixedly connected to the base, a U-shaped piece is threadedly connected to the threaded rod, and the limiting rod is interlaced with the U-shaped piece, and a slot matching the injection nozzle is provided at one end of the U-shaped piece.

[0015] As a preferred technical solution of the present application, the opening and closing mechanism includes a first rack, the bottom of which is fixedly mounted on the other end of the U-shaped member, and a second rack is provided at the bottom of the other side of the tank body, and one side of the first rack and the second rack are both engaged with a fifth gear, and the two fifth gears are engaged with each other, a second movable shaft is fixed on the fifth gear, a connecting block is fixed on the other side of the tank body, and the two second movable shafts are both rotatably connected to the connecting block.

[0016] As a preferred technical solution of the present application, the opening and closing mechanism also includes an L-shaped rod, one end of the L-shaped rod is fixedly connected to the other side of the second rack, a piston is provided in the cylinder, the bottom end of the piston is rotatably connected to a connecting rod, the bottom end of the connecting rod is fixedly provided with a sealing disk matching the discharge port, the bottom end of the sealing disk is embedded with a high-temperature resistant sealing ring, the top end of the piston is rotatably connected to a rectangular rod, and the top end of the rectangular rod passes through the tank body and is fixedly connected to the other end of the L-shaped rod.

[0017] As a preferred technical solution of the present application, a battery is fixedly provided on the base, and an opening is provided on one side of the top of the tank body.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the scheme of this application:

[0020] 1. To address the problem in the prior art that, in conventional concrete repair devices, liquid material is injected into cracks by operating a filling nozzle, but when repairing higher cracks, external tools are required to raise the filling nozzle to match the higher cracks, resulting in inconvenience and low practicality, the present application provides a second transmission mechanism, which enables the U-shaped member of the second transmission mechanism to drive the filling nozzle to move up and down. In conjunction with the universal wheel, not only can high concrete cracks be repaired, but the filling nozzle can also be removed to repair lower concrete cracks. Furthermore, the second transmission mechanism can drive the opening and closing mechanism to operate, thereby controlling the opening and closing of the feed port of the discharge member of the discharge mechanism, thereby improving practicality.

[0021] 2. Through the first transmission mechanism, the stirring mechanism and the discharging mechanism can be driven to operate at the same time. Under the action of the stirring mechanism, the repair material injected into the tank body can be stirred, and the inner tank can be heated to convert it into liquid material. Through the discharging mechanism, the liquid material can be discharged to repair concrete cracks, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the concrete crack repair equipment provided in this application;

[0023] Figure 2 A schematic diagram of the partial structure of the concrete crack repair equipment provided in this application;

[0024] Figure 3 A schematic structural diagram of the second transmission mechanism of the concrete crack repair device provided in this application;

[0025] Figure 4 Schematic diagram of the cross-sectional structure of the tank body of the concrete crack repair equipment provided in this application.

[0026] Indicated in the figure:

[0027] 1. Base;

[0028] 2. Universal wheel;

[0029] 3. L-shaped board;

[0030] 4. Tank body;

[0031] 5. Stirring mechanism; 501. Cylinder; 502. First stirring rod; 503. Second stirring rod; 504. First gear;

[0032] 6. Discharging mechanism; 601. Discharging piece; 602. Auger; 603. High-temperature resistant hose; 604. Injection nozzle;

[0033] 7. First transmission mechanism; 701. Motor; 702. First bevel gear; 703. First transmission shaft; 704. Second bevel gear; 705. Second transmission shaft; 706. Second gear; 707. Third gear; 708. First movable shaft; 709. Fourth gear; 710. L-shaped positioning plate;

[0034] 8. Second transmission mechanism; 801. Stepping motor; 802. Threaded rod; 803. Limiting rod; 804. U-shaped member;

[0035] 9. Opening and closing mechanism; 901. First rack; 902. Second rack; 903. Fifth gear; 904. Second movable shaft; 905. Connecting block; 906. L-shaped rod; 907. Piston; 908. Connecting rod; 909. Sealing disk; 910. High-temperature resistant sealing ring; 911. Rectangular rod;

[0036] 10. Heat the inner pot. DETAILED DESCRIPTION

[0037] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0038] As described in the background art, the existing concrete repair device injects liquid material into the crack by operating the injection nozzle when in use. However, when repairing cracks at higher locations, it is necessary to use external tools to raise the height of the injection nozzle to match the high cracks, which is inconvenient to use and has low practicality.

[0039] In order to solve this technical problem, the utility model provides a concrete crack repairing device, which is applied to concrete.

[0040] Specifically, please refer to Figure 1-4 , concrete crack repair equipment specifically includes:

[0041] The base 1 has four corners at the bottom end of the base 1, and universal wheels 2 are fixedly provided. An L-shaped plate 3 is fixedly provided on one side of the top end of the base 1. A tank body 4 is fixedly provided on the top end of the L-shaped plate 3. A stirring mechanism 5 is provided in the tank body 4. A discharging mechanism 6 is provided at the bottom end of the tank body 4. A first transmission mechanism 7 for driving the stirring mechanism 5 and the discharging mechanism 6 is provided on one side of the tank body 4. A second transmission mechanism 8 is provided on one side of the top end of the base 1. An opening and closing mechanism 9 for matching with the discharging mechanism 6 is provided between the second transmission mechanism 8 and the tank body 4 and the stirring mechanism 5. A heating liner 10 is fixed in the tank body 4.

[0042] The concrete crack repairing equipment provided by the present invention can enable the U-shaped part of the second transmission mechanism to drive the injection nozzle to move up and down through the provision of a second transmission mechanism. In conjunction with the universal wheel, not only can high concrete cracks be repaired, but the injection nozzle can also be removed to repair low concrete cracks. Moreover, the second transmission mechanism can drive the opening and closing mechanism to operate, thereby controlling the opening and closing of the feed port of the discharge member of the discharge mechanism, thereby improving practicality.

[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0046] Example 1

[0047] Please refer to Figure 4 A concrete crack repair device, whose stirring mechanism 5 includes a cylinder 501, the top of the cylinder 501 is rotatably connected to the middle of the top of the tank body 4, a plurality of first stirring rods 502 are fixedly provided at equal distances on both sides of the cylinder 501, a second stirring rod 503 is fixedly provided at the bottom of both sides of the cylinder 501, and a first gear 504 is fixedly provided at the top of the cylinder 501.

[0048] Please refer to Figure 1 and Figure 4 A concrete crack repair device, whose discharging mechanism 6 includes a discharging piece 601, the discharging piece 601 is fixedly installed at the bottom end of the tank body 4, and the feeding port of the discharging piece 601 is communicated with the interior of the tank body 4, and a screw dragon 602 is rotatably connected to the discharging piece 601.

[0049] Example 2

[0050] The concrete crack repairing device provided in Example 1 is further optimized, specifically, Figure 1 and Figure 4 As shown, the discharge mechanism 6 further includes a high temperature resistant hose 603 , one end of the high temperature resistant hose 603 is connected to the discharge port of the discharge member 601 , and the other end of the high temperature resistant hose 603 is connected to the injection nozzle 604 .

[0051] Further, such as Figure 1 and Figure 4 As shown, the first transmission mechanism 7 includes a motor 701, which is arranged at the bottom of one side of the tank body 4. A first bevel gear 702 and a first transmission shaft 703 are fixed on the output shaft of the motor 701. One end of the first transmission shaft 703 penetrates into the discharge piece 601 and is fixedly connected to one end of the auger 602.

[0052] Example 3

[0053] The concrete crack repairing device provided in Example 1 or 2 is further optimized, specifically, as Figure 1 and Figure 4 As shown, the first transmission mechanism 7 also includes a second bevel gear 704, which is meshed with the first bevel gear 702. A second transmission shaft 705 is fixed on the second bevel gear 704, and a second gear 706 is fixed on the top of the second transmission shaft 705. The second gear 706 is meshed with a third gear 707. A first movable shaft 708 is fixed on the third gear 707, and the first movable shaft 708 is rotatably connected to one side of the top of the tank body 4. A fourth gear 709 is fixed on the bottom end of the first movable shaft 708, and the fourth gear 709 is meshed with the first gear 504. An L-shaped positioning plate 710 is fixed on one side of the motor 701, and one side of the L-shaped positioning plate 710 is fixedly connected to the tank body 4, and the second transmission shaft 705 is rotatably connected to the L-shaped positioning plate 710.

[0054] Further, such as Figure 1-3 As shown, the second transmission mechanism 8 includes a stepper motor 801, which is fixedly mounted on the base 1. A threaded rod 802 is fixedly provided on the output shaft of the stepper motor 801. A limiting rod 803 is provided on one side of the threaded rod 802, and the bottom end of the limiting rod 803 is fixedly connected to the base 1. A U-shaped part 804 is threadedly connected to the threaded rod 802, and the limiting rod 803 is interlaced with the U-shaped part 804. A slot matching the injection nozzle 604 is provided at one end of the U-shaped part 804.

[0055] Further, such as Figure 1 、 Figure 2 and Figure 4 As shown, the opening and closing mechanism 9 includes a first rack 901, the bottom of the first rack 901 is fixedly mounted on the other end of the U-shaped member 804, and a second rack 902 is provided at the bottom of the other side of the tank body 4. One side of the first rack 901 and the second rack 902 are both engaged with a fifth gear 903, and the two fifth gears 903 are engaged with each other. A second movable shaft 904 is fixed on the fifth gear 903, and a connecting block 905 is fixed on the other side of the tank body 4, and the two second movable shafts 904 are both rotatably connected to the connecting block 905.

[0056] Example 4

[0057] The concrete crack repairing equipment provided in the above embodiments is further optimized, such as Figure 1 、 Figure 2 and Figure 4As shown, the opening and closing mechanism 9 also includes an L-shaped rod 906, one end of the L-shaped rod 906 is fixedly connected to the other side of the second rack 902, a piston 907 is provided in the cylinder 501, the bottom end of the piston 907 is rotatably connected to a connecting rod 908, the bottom end of the connecting rod 908 is fixedly provided with a sealing disk 909 matching the discharge port, the bottom end of the sealing disk 909 is embedded with a high-temperature resistant sealing ring 910, the top end of the piston 907 is rotatably connected to a rectangular rod 911, and the top end of the rectangular rod 911 passes through the tank body 4 and is fixedly connected to the other end of the L-shaped rod 906.

[0058] Further, such as Figure 1 As shown, a battery is fixed on the base 1, and an opening is provided on one side of the top of the can body 4.

[0059] The use process of the concrete crack repair equipment provided by the utility model is as follows:

[0060] The repair material can be injected into the tank body 4 through the opening. After the repair material is injected, the motor 701 and the heating liner 10 are controlled to work. The output shaft of the motor 701 drives the first bevel gear 702 and the first transmission shaft 703 to rotate at the same time. The first bevel gear 702 drives the second bevel gear 704 to rotate, so that the second transmission shaft 705 drives the second gear 706 to rotate, and then the third material 707 drives the first movable shaft 708 to rotate. The first movable shaft 708 drives the fourth gear 709 to rotate, and cooperates with the first gear 504 to rotate the barrel 501. The barrel 501 drives the first stirring rod 502 and the second stirring rod 503 to rotate. Cooperating with the heating liner 10, the repair material can be melted into liquid material. The stepper motor 801 is controlled to work. The output shaft of the stepper motor 801 drives the threaded rod 802 to rotate. Cooperating with the limit rod 803, the U-shaped piece 804 can be moved upward. The U-shaped piece 804 drives the first rack 901 to move upward. As the first rack 901 moves, the two fifth gears 903 rotate. Then the second rack 902 moves up, so that the L-shaped rod 906 drives the rectangular rod 911 to move up. As the rectangular rod 911 moves, the piston 907 drives the connecting rod 908 to move up, and then the sealing disk 909 drives the high-temperature resistant sealing ring 910 to move up, so that the feed port is opened. As the motor 701 works, the first transmission shaft 903 drives the auger 602 to rotate, and the liquid material can be discharged through the high-temperature resistant hose 603 and the injection nozzle 604. At the same time, the stirring mechanism 5 and the heating liner are 10 is always working to prevent the liquid material in the tank body 4 from solidifying. The user can hold the injection nozzle 604 to repair the low concrete cracks and clip the injection nozzle 604 onto the U-shaped piece 804. Under the action of the stepper motor 801, the U-shaped piece 804 can drive the injection nozzle 604 to move upward to repair the high concrete cracks. After the repair is completed, the U-shaped piece 804 is reset, and the rectangular rod 911 is moved downward, so that the sealing disk 909 seals the feed port for easy use next time.

[0061] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0062] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A concrete crack repair device, characterized in that: The invention comprises a base (1), wherein four corners of the bottom end of the base (1) are fixedly provided with universal wheels (2), an L-shaped plate (3) is fixedly provided on one side of the top end of the base (1), a tank body (4) is fixedly provided on the top end of the L-shaped plate (3), a stirring mechanism (5) is provided inside the tank body (4), a discharging mechanism (6) is provided at the bottom end of the tank body (4), a first transmission mechanism (7) for driving the stirring mechanism (5) and the discharging mechanism (6) is provided on one side of the tank body (4), a second transmission mechanism (8) is provided on one side of the top end of the base (1), an opening and closing mechanism (9) for matching with the discharging mechanism (6) is provided between the second transmission mechanism (8) and the tank body (4) and the stirring mechanism (5), and a heating liner (10) is fixedly provided inside the tank body (4).

2. A concrete crack repairing device according to claim 1, characterized in that: The stirring mechanism (5) comprises a cylinder (501), the top end of the cylinder (501) being rotatably connected to the middle part of the top end of the tank body (4), a plurality of first stirring rods (502) being fixedly provided at equal intervals on both sides of the cylinder (501), second stirring rods (503) being fixedly provided at the bottom of both sides of the cylinder (501), and a first gear (504) being fixedly provided at the top end of the cylinder (501).

3. A concrete crack repairing device according to claim 2, characterized in that: The discharging mechanism (6) comprises a discharging member (601), the discharging member (601) being fixedly mounted at the bottom end of the tank body (4), and the feeding port of the discharging member (601) being communicated with the interior of the tank body (4), and an auger (602) being rotatably connected inside the discharging member (601).

4. A concrete crack repairing device according to claim 3, characterized in that: The discharge mechanism (6) further comprises a high temperature resistant hose (603), one end of the high temperature resistant hose (603) being in communication with the discharge port of the discharge member (601), and the other end of the high temperature resistant hose (603) being in communication with an injection nozzle (604).

5. A concrete crack repairing device according to claim 4, characterized in that: The first transmission mechanism (7) comprises a motor (701), the motor (701) being arranged at the bottom of one side of the tank body (4), the output shaft of the motor (701) being respectively fixedly provided with a first bevel gear (702) and a first transmission shaft (703), one end of the first transmission shaft (703) passing through the discharge member (601) and being fixedly connected to one end of the auger (602).

6. A concrete crack repairing device according to claim 5, characterized in that: The first transmission mechanism (7) further comprises a second bevel gear (704), the second bevel gear (704) being meshingly connected with the first bevel gear (702), a second transmission shaft (705) being fixedly provided on the second bevel gear (704), a second gear (706) being fixedly provided at the top end of the second transmission shaft (705), a third gear (707) being meshingly connected with the second gear (706), a first movable shaft (708) being fixedly provided on the third gear (707), and the first movable shaft (708) being rotationally connected with one side of the top end of the tank body (4), a fourth gear (709) being fixedly provided at the bottom end of the first movable shaft (708), and the fourth gear (709) being meshingly connected with the first gear (504), an L-shaped positioning plate (710) being fixedly provided on one side of the motor (701), one side of the L-shaped positioning plate (710) being fixedly connected with the tank body (4), and the second transmission shaft (705) being rotationally connected with the L-shaped positioning plate (710).

7. A concrete crack repairing device according to claim 6, characterized in that: The second transmission mechanism (8) comprises a stepper motor (801), the stepper motor (801) being fixedly mounted on the base (1), a threaded rod (802) being fixedly provided on the output shaft of the stepper motor (801), a limit rod (803) being provided on one side of the threaded rod (802), and the bottom end of the limit rod (803) being fixedly connected to the base (1), a U-shaped piece (804) being threadedly connected to the threaded rod (802), and the limit rod (803) and the U-shaped piece (804) being interlaced and connected, and a slot matching the injection nozzle (604) being provided at one end of the U-shaped piece (804).

8. A concrete crack repairing device according to claim 7, characterized in that: The opening and closing mechanism (9) comprises a first rack (901), the bottom of which is fixedly mounted on the other end of the U-shaped member (804), a second rack (902) is arranged at the bottom of the other side of the tank body (4), a fifth gear (903) is meshed on one side of the first rack (901) and the second rack (902), and the two fifth gears (903) are meshed, a second movable shaft (904) is fixedly arranged on the fifth gear (903), a connecting block (905) is fixedly arranged on the other side of the tank body (4), and the two second movable shafts (904) are rotatably connected to the connecting block (905).

9. A concrete crack repairing device according to claim 8, characterized in that: The opening and closing mechanism (9) further comprises an L-shaped rod (906), one end of which is fixedly connected to the other side of the second rack (902); a piston (907) is provided in the cylinder (501); the bottom end of the piston (907) is rotatably connected to a connecting rod (908); a sealing disk (909) matching the discharge port is fixedly provided at the bottom end of the connecting rod (908); a high-temperature resistant sealing ring (910) is embedded at the bottom end of the sealing disk (909); the top end of the piston (907) is rotatably connected to a rectangular rod (911); the top end of the rectangular rod (911) passes through the tank body (4) and is fixedly connected to the other end of the L-shaped rod (906).

10. A concrete crack repairing device according to claim 9, characterized in that: A battery is also fixedly mounted on the base (1), and an opening is formed on one side of the top of the tank body (4).

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