A repair material injection device for a concrete structure

Abstract

The application discloses a kind of existing concrete structure repair material injection device, it is related to concrete structure repair technical field, including frame, the upper surface of the frame is fixedly connected with main agent tank, the upper surface of the frame is fixedly connected with curing agent tank, the upper surface of the frame is equipped with extraction structure, the upper surface of the frame is equipped with electric tool, the end of extraction structure far from main agent tank is communicated with extraction pipe, further comprising: setting in the extraction pipe end far from frame, to after extracting main agent and curing agent, the mixing device of main agent and curing agent can be stirred and mixed.This existing concrete structure repair material injection device, by setting mixing device, so that when using concrete structure repair material injection device to repair concrete structure, main agent and curing agent can be mixed as much as possible, so that the effect of repairing concrete structure can be guaranteed as much as possible.

Description

Technical Field

[0001] This invention relates to the field of concrete structure repair technology, specifically to an existing concrete structure repair material injection device. Background Technology

[0002] Concrete is generally a composite material made by mixing cement as a binder, sand and stone as aggregates, and water in a certain proportion. During the long-term use of concrete structures, cracks often appear. Concrete structure repair materials can be used to repair cracked concrete structures, thereby minimizing further damage to the concrete structure.

[0003] Existing technologies, such as the invention with publication number CN107313603B, disclose the structure of a mobile two-component repair material injection device for repairing concrete structures and a method for repairing concrete structures. This device uses a piston to draw in the main agent and hardener, effectively preventing leakage of the main agent and hardener to the outside. Furthermore, it can freely move to the cracked areas of the concrete structure, easily injecting the repair material on-site to repair the cracks. The mobile two-component repair material injection device for repairing concrete structures includes: a vehicle frame equipped with movable wheels and handles; a first tank and a second tank, respectively mounted on the vehicle frame, each storing the main agent and hardener; a suction unit for drawing in the main agent and hardener stored in the first and second tanks; a drive unit for driving the suction unit; and an injection nozzle for injecting the repair material, which is a mixture of the main agent and hardener drawn in by the suction unit, into the cracked areas of the concrete structure.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: during the process of repairing concrete structures using a concrete structure repair material injection device, the main agent and the curing agent are often difficult to mix fully, which easily leads to poor repair effect on the concrete structure.

[0005] Therefore, we propose an injection device for repair materials in existing concrete structures. Summary of the Invention

[0006] The purpose of this invention is to provide an injection device for repairing existing concrete structures, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a repair material injection device for existing concrete structures, comprising a frame, a main agent tank fixedly connected to the upper surface of the frame, a curing agent tank fixedly connected to the upper surface of the frame, an extraction structure provided on the upper surface of the frame, an electric tool mounted on the upper surface of the frame, and an extraction pipe connected to the end of the extraction structure away from the main agent tank; further comprising: a stirring device disposed at the end of the extraction pipe away from the frame, for mixing the main agent and curing agent after extraction; the stirring device comprising a connecting pipe connected to the surface of the extraction pipe, a mixing tank connected to the end of the connecting pipe away from the connecting pipe, a rotating rod slidably connected to the inner wall of the mixing tank, and five stirring blades fixedly connected to the surface of the rotating rod; and so on. The surface of the mixing tank is connected to a spray pipe; a sealing device is provided at the end of the spray pipe away from the extraction pipe to minimize the leakage of the main agent and hardener from the repair site when repairing concrete structures. The sealing device includes a first fixing plate installed on the surface of the spray pipe, and a second fixing plate is fitted onto the surface of the spray pipe; a limiting device is provided on the upper surface of the frame to restrict the position of the power tool when powering the concrete structure repair material injection device with a power tool. The limiting device includes a second connecting rod fixedly connected to the upper surface of the frame, a second limiting ring fixedly connected to the end of the second connecting rod away from the frame, a first limiting ring fitted onto the surface of the power tool, and a first connecting rod fixedly connected to the lower surface of the first limiting ring.

[0008] The aforementioned components achieve the following effects: By incorporating a mixing device, the main agent and hardener can be thoroughly mixed during the repair of concrete structures using the concrete structure repair material injection device, thereby maximizing the repair effect; by incorporating a sealing device, the repair material is prevented from leaking out of the repaired area during injection, maximizing repair efficiency; and by incorporating a limiting device, the position of the power tool is restricted during the repair process, preventing the power tool from rotating when powered.

[0009] Preferably, the stirring device further includes a motor fixedly connected to the end of the rotating rod away from the connecting pipe, and a baffle is fixedly connected to the inner wall of the stirring tank.

[0010] The above components achieve the following effects: after the motor starts, it can drive the rotating rod to rotate, and the baffle can prolong the time that the main agent and the curing agent are in the mixing tank, so as to mix the main agent and the curing agent as much as possible.

[0011] Preferably, the surface of the baffle has a perforation, and the surface of the motor is fitted with a fixing bracket.

[0012] The above components achieve the following effects: the drain hole allows the main agent and curing agent to pass through the baffle, and the fixing bracket can fix the position of the motor.

[0013] Preferably, two first baffles are fixedly connected to the surface of the rotating rod, and two second baffles are fixedly connected to the surface of the rotating rod, wherein both the first baffles and the second baffles are fan-shaped.

[0014] The above components achieve the following effects: the first and second baffles can further stir the main agent and the curing agent, while also blocking the main agent and the curing agent, thus increasing the mixing time of the main agent and the curing agent.

[0015] Preferably, the sealing device further includes a first buckle plate fixedly connected to the side of the first fixing plate near the frame, a second buckle plate fixedly connected to the side of the second fixing plate near the frame, a second protrusion fixedly connected to the lower surface of the second buckle plate, a first protrusion fixedly connected to the lower surface of the first buckle plate, and a screw threaded into the inner wall of the second protrusion.

[0016] The aforementioned components achieve the following effect: the first and second protrusions can be connected by a screw threaded into the inner wall of the second protrusion, thereby connecting the first and second buckle plates.

[0017] Preferably, the sealing device further includes a snap-fit ​​assembly, wherein the inner walls of the first fixing plate and the second fixing plate are provided with sliding holes, and the snap-fit ​​assembly includes a sliding rod slidably connected to the surface of the sliding hole on the first fixing plate and the second fixing plate, and a rotating plate is rotatably connected to one end of the sliding rod near the nozzle.

[0018] The aforementioned components achieve the following effects: the slide rod slidably connected to the surface of the slide hole can move, and the rotating plate rotatably connected to the slide rod can rotate.

[0019] Preferably, a retaining plate is fixedly connected to the end of the rotating plate away from the slide rod, and a first spring is fixedly connected to the end of the slide rod away from the nozzle. The other end of the first spring is fixedly connected to a first fixing plate or a second fixing plate.

[0020] The above components achieve the following effects: the nozzle can be fixed to the first and second fixed plates by the clamping plate, the first spring ensures a stable connection between the slide rod and the first or second fixed plate, and the rotating plate allows the clamping plate to rotate.

[0021] Preferably, the limiting device further includes a second slider fixedly connected to the end of the limiting rod away from the first limiting ring, and a second groove is provided on the upper surface of the frame, and the second slider is slidably connected to the surface of the second groove on the frame.

[0022] The effect achieved by the above components is that the second slider, which is slidably connected to the surface of the second groove on the frame, can move, and the movement of the second slider can drive the limit rod to move.

[0023] Preferably, a limiting rod is slidably connected to the inner wall of the second slider, and a second spring is sleeved on the surface of the limiting rod. The two ends of the second spring are fixedly connected to the second slider and the frame, respectively.

[0024] The above components achieve the following effects: the limiting rod can restrict the position of the second spring, the second spring can restrict the position of the second slider, and at the same time, it can ensure that the second slider can return to its original position after moving.

[0025] Preferably, a first groove is provided on the side of the first connecting rod away from the mixing tank, a first slider is slidably connected to the surface of the first groove on the first connecting rod, a locking rod is fixedly connected to the side of the first slider near the frame, and a locking hole is provided on the side of the frame near the locking rod.

[0026] The effect achieved by the above components is that the first slider, which is slidably connected to the surface of the first groove, can move, thereby ensuring that the locking rod can move. By moving the locking rod closer to the locking hole, the position of the first connecting rod can be restricted.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. By incorporating a mixing device, this invention enables the main agent and curing agent to be thoroughly mixed when repairing concrete structures using a concrete structure repair material injection device, thereby maximizing the effectiveness of the concrete structure repair.

[0029] 2. By setting up a sealing device, this invention ensures that the repair material does not leak out of the area to be repaired during the injection process of the concrete structure repair, thereby maximizing the efficiency of the concrete structure repair.

[0030] 3. By setting a limiting device, the present invention can restrict the position of the power tool during the process of repairing the concrete structure using the concrete structure repair material injection device, thereby ensuring that the power tool does not rotate when power is provided. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0033] Figure 3 For the present invention Figure 1 A partial structural diagram;

[0034] Figure 4 This is a schematic diagram of the structure of the motor in this invention;

[0035] Figure 5 This is a schematic diagram of the structure at the first fixing plate of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the first buckle plate of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the snap-fit ​​assembly of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure at the first limiting ring of the present invention;

[0039] Figure 9 For the present invention Figure 8 A partial structural diagram.

[0040] In the diagram: 1-Frame; 2-Main agent tank; 3-Curing agent tank; 4-Extraction structure; 5-Power tool; 6-Extraction pipe; 7-Mixing device; 701-Connecting pipe; 702-Mixing tank; 703-Rotor; 704-Motor; 705-Fixing frame; 706-Spray nozzle; 707-Baffle; 708-Leakage hole; 709-Mixing blade; 710-First baffle plate; 711-Second baffle plate; 8-Sealing device; 81-First fixing plate; 82-Second fixing plate; 83-Snap-on assembly; 831-Snap plate; 832-Turn plate; 833-Slide rod; 834-First spring; 84-First buckle plate; 85-Second buckle plate; 86-Screw; 9-Limiting device; 91-First limiting ring; 92-Second limiting ring; 93-First connecting rod; 94-Second connecting rod; 95-First slider; 96-Snap rod; 97-Second slider; 98-Limiting rod; 99-Second spring. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1-9 This invention provides a technical solution: an injection device for repairing existing concrete structures, comprising a frame 1, a main agent tank 2 fixedly connected to the upper surface of the frame 1, a curing agent tank 3 fixedly connected to the upper surface of the frame 1, an extraction structure 4 provided on the upper surface of the frame 1, an electric tool 5 mounted on the upper surface of the frame 1, and an extraction pipe 6 connected to the end of the extraction structure 4 away from the main agent tank 2. It further comprises a stirring device 7 disposed at the end of the extraction pipe 6 away from the frame 1, for mixing the main agent and curing agent after extraction. The stirring device 7 includes a connecting pipe 701 connected to the surface of the extraction pipe 6, and a mixing tank 702 connected to the end of the connecting pipe 701 away from the connecting pipe 701. A rotating rod 703 is slidably connected to the inner wall of the mixing tank 702, and five stirring blades 709 are fixedly connected to the surface of the rotating rod 703. The surface of the frame 1 is connected to a nozzle 706; a sealing device 8 is provided at the end of the nozzle 706 away from the extraction pipe 6 to prevent the main agent and hardener from flowing out of the repaired area when repairing concrete structures. The sealing device 8 includes a first fixing plate 81 installed on the surface of the nozzle 706 and a second fixing plate 82 fitted on the surface of the nozzle 706; a limiting device 9 is provided on the upper surface of the frame 1 to restrict the position of the power tool 5 when powering the concrete structure repair material injection device. The limiting device 9 includes a second connecting rod 94 fixedly connected to the upper surface of the frame 1. A second limiting ring 92 is fixedly connected to the end of the second connecting rod 94 away from the frame 1. A first limiting ring 91 is fitted on the surface of the power tool 5, and a first connecting rod 93 is fixedly connected to the lower surface of the first limiting ring 91. By incorporating a mixing device 7, the main agent and curing agent can be thoroughly mixed when the concrete structure repair material injection device is used to repair the concrete structure, thereby maximizing the repair effect. By incorporating a sealing device 8, the repair material is prevented from leaking out of the repaired area during injection, thus maximizing the repair efficiency. By incorporating a limiting device 9, the position of the power tool 5 is restricted during the repair process, preventing the power tool 5 from rotating when powered.

[0043] The following section will describe in detail the specific settings and functions of the stirring device 7, the sealing device 8, and the limiting device 9.

[0044] like Figures 1-4As shown, the stirring device 7 also includes a motor 704 fixedly connected to the end of the rotating rod 703 away from the connecting pipe 701, and a baffle 707 fixedly connected to the inner wall of the mixing tank 702. After the motor 704 starts, it can drive the rotating rod 703 to rotate. The baffle 707 can prolong the time the main agent and curing agent are in the mixing tank 702, thereby allowing for maximum mixing of the main agent and curing agent. A perforation 708 is opened on the surface of the baffle 707, and a fixing bracket 705 is fitted onto the surface of the motor 704. The perforation 708 allows the main agent and curing agent to pass through the baffle 707, and the fixing bracket 705 can fix the position of the motor 704. Two first baffles 710 are fixedly connected to the surface of the rotating rod 703, and two second baffles 711 are fixedly connected to the surface of the rotating rod 703. Both the first baffles 710 and the second baffles 711 are fan-shaped. The first baffle plate 710 and the second baffle plate 711 can further stir the main agent and the curing agent, and at the same time, they can block the main agent and the curing agent, which can increase the mixing time of the main agent and the curing agent.

[0045] like Figure 2 and Figure 5 as well as Figure 6 and Figure 7 As shown, the sealing device 8 also includes a first buckle plate 84 fixedly connected to the side of the first fixing plate 81 near the frame 1, and a second buckle plate 85 fixedly connected to the side of the second fixing plate 82 near the frame 1. A second protrusion is fixedly connected to the lower surface of the second buckle plate 85, and a first protrusion is fixedly connected to the lower surface of the first buckle plate 84. A screw 86 is threaded into the inner wall of the second protrusion. The first protrusion and the second protrusion can be connected by the screw 86 threaded into the inner wall of the second protrusion, thereby connecting the first buckle plate 84 and the second buckle plate 85. The sealing device 8 also includes a snap-fit ​​assembly 83. The inner walls of the first fixing plate 81 and the second fixing plate 82 are provided with sliding holes. The snap-fit ​​assembly 83 includes a slide rod 833 slidably connected to the surface of the sliding hole on the first fixing plate 81 and the second fixing plate 82. A rotating plate 832 is rotatably connected to the end of the slide rod 833 near the nozzle 706. The slide rod 833 slidably connected to the surface of the sliding hole can move, and the rotating plate 832 rotatably connected to the slide rod 833 can rotate. A retaining plate 831 is fixedly connected to the end of the rotating plate 832 away from the slide rod 833, and a first spring 834 is fixedly connected to the end of the slide rod 833 away from the nozzle 706. The other end of the first spring 834 is fixedly connected to either the first fixed plate 81 or the second fixed plate 82. The retaining plate 831 can fix the nozzle to the first fixed plate 81 and the second fixed plate 82, the first spring 834 ensures a stable connection between the slide rod 833 and the first fixed plate 81 or the second fixed plate 82, and the rotating plate 832 allows the retaining plate 831 to rotate.

[0046] like Figure 2 and Figure 8 as well as Figure 9 As shown, the limiting device 9 also includes a second slider 97 fixedly connected to the end of the limiting rod 98 away from the first limiting ring 91. A second groove is formed on the upper surface of the frame 1, and the second slider 97 is slidably connected to the surface of the second groove on the frame 1. The second slider 97, slidably connected to the surface of the second groove on the frame 1, can move, and the movement of the second slider 97 can drive the limiting rod 98 to move. The inner wall of the second slider 97 is slidably connected to the limiting rod 98, and a second spring 99 is sleeved on the surface of the limiting rod 98. The two ends of the second spring 99 are fixedly connected to the second slider 97 and the frame 1, respectively. The limiting rod 98 can restrict the position of the second spring 99, and the second spring 99 can restrict the position of the second slider 97, while ensuring that the second slider 97 can return to its original position after movement. A first groove is formed on the side of the first connecting rod 93 away from the mixing tank 702. A first slider 95 is slidably connected to the surface of the first groove on the first connecting rod 93. A locking rod 96 is fixedly connected to the side of the first slider 95 near the frame 1. A locking hole is formed on the side of the frame 1 near the locking rod 96. The first slider 95, which is slidably connected to the surface of the first groove, can move, thereby ensuring that the locking rod 96 can move. By moving the locking rod 96 closer to the locking hole, the position of the first connecting rod 93 can be restricted.

[0047] Working principle: When using the concrete structure repair material injection device, first move the frame 1 to the location that needs to be repaired, then inject the main agent and curing agent into the main agent tank 2 and curing agent tank 3 respectively. Start the power tool 5 to drive the extraction structure 4 to extract the main agent and curing agent in the main agent tank 2 and curing agent tank 3 and put them into the extraction tube 6. Then use the main agent and curing agent in the extraction tube 6 to repair the concrete structure. When using the concrete structure repair material injection device, the motor 704 is started first. Then, the main agent and curing agent enter the mixing tank 702 through the extraction structure 4 and the connecting pipe 701. At this time, the motor 704 drives the rotating rod 703 to rotate, so that the mixing blade 709 can mix the main agent and curing agent in the mixing tank 702. Then, the main agent and curing agent pass through the drain hole 708 on the baffle 707, and then through the first baffle 710 and the second baffle 711 to further mix the main agent and curing agent. Finally, the main agent and curing agent are injected into the concrete structure through the spray pipe 706. The baffle 707 can increase the mixing time of the mixing blade 709 on the main agent and curing agent. The fixing frame 705 can fix the motor 704 on the mixing tank 702. By setting the mixing device 7, the main agent and curing agent can be fully mixed as much as possible when using the concrete structure repair material injection device to repair the concrete structure, so as to ensure the best possible repair effect.

[0048] When using the concrete structure repair material injection device, firstly, rotate the clamping plate 831 of the clamping assembly 83 to drive the rotating plate 832 to rotate on the surface of the sliding rod 833, so that the clamping plate 831 moves away from the first clamping plate 84. Move the first fixing plate 81 and the second fixing plate 82 closer to the nozzle 706, pull the two clamping plates 831 away from the first fixing plate 81 and the second fixing plate 82 respectively, rotate the clamping plate 831 closer to the nozzle 706, release the clamping plate 831, and under the action of the elastic force of the first spring 834, the clamping plate 831 moves closer to the nozzle 706, temporarily restricting the position of the nozzle 706. Then, rotate the screw 86 on the inner wall of the second clamping plate 85, so that the screw 86 moves closer to the first clamping plate 84, thereby completing the connection between the first fixing plate 81 and the second fixing plate 82. By setting the sealing device 8, it can be ensured that the repair material does not leak out of the area to be repaired during the injection process of the concrete structure repair, thereby maximizing the efficiency of the concrete structure repair.

[0049] When installing the power tool 5, first pull the first slider 95 to move the locking rod 96 away from the frame 1, releasing the restriction on the position of the first connecting rod 93. Move the first limiting ring 91 to move the second slider 97 to slide on the surface of the limiting rod 98, so that the first limiting ring 91 moves away from the second connecting rod 94. Release the first slider 95. Under the action of gravity, the first slider 95 slides on the surface of the first groove on the first connecting rod 93, so that the locking rod 96 moves closer to the frame 1. Then move the power tool 5 closer to the frame 1 and release the first limiting ring 91. At this time, under the action of the elastic force of the second spring 99, the first limiting ring 91... As the first limiting ring 91 approaches the second limiting ring 92, under the action of gravity, the first slider 95 slides on the surface of the first groove, thereby driving the locking rod 96 to engage in the locking hole on the frame 1, thus restricting the position of the first limiting ring 91 and completing the installation of the power tool 5. By setting the limiting device 9, the position of the power tool 5 can be restricted during the process of repairing the concrete structure using the concrete structure repair material injection device, thereby ensuring as much as possible that the power tool 5 will not rotate when providing power.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for injecting a repair material into an existing concrete structure, comprising a frame (1), characterised in that: The upper surface of the frame (1) is fixedly connected with a main agent tank (2), the upper surface of the frame (1) is fixedly connected with a curing agent tank (3), the upper surface of the frame (1) is provided with an extraction structure (4), the upper surface of the frame (1) is provided with an electric tool (5), one end of the extraction structure (4) away from the main agent tank (2) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6). The extraction pipe (6) is communicated with an extraction pipe (6), and the extraction pipe (6) is communicated with an extraction pipe (6).

2. A device for injecting a patching material into a concrete structure according to claim 1, characterized in that: ​ 3. The apparatus of claim 1, wherein: The sealing device (8) further comprises a buckle assembly (83), the inner wall of the first fixed plate (81) and the second fixed plate (82) is provided with a sliding hole, the buckle assembly (83) comprises a sliding rod (833) which is slidably connected to the surface of the sliding hole of the first fixed plate (81) and the second fixed plate (82), and one end of the sliding rod (833) close to the nozzle (706) is rotatably connected with a rotating plate (832).

4. A device for injecting a patching material into a concrete structure according to claim 3, wherein: One end of the rotating plate (832) away from the sliding rod (833) is fixedly connected with a clamping plate (831), one end of the sliding rod (833) away from the nozzle (706) is fixedly connected with a first spring (834), and the other end of the first spring (834) is fixedly connected with the first fixed plate (81) or the second fixed plate (82).

5. The apparatus for injecting a patching material into a concrete structure according to claim 1, wherein: The limiting device (9) further comprises a second sliding block (97) fixedly connected to one end of the limiting rod (98) away from the first limiting ring (91), and the upper surface of the frame (1) is provided with a second sliding groove.

6. A device for injecting a patching material into a concrete structure according to claim 5, wherein: The inner wall of the second sliding block (97) is slidably connected with the limiting rod (98), the surface of the limiting rod (98) is sleeved with a second spring (99), and the two ends of the second spring (99) are fixedly connected with the second sliding block (97) and the frame (1) respectively.

7. The apparatus of claim 1, wherein: The first connecting rod (93) is provided with a first sliding groove on one side away from the stirring tank (702), the surface of the first sliding groove on the first connecting rod (93) is slidably connected with a first sliding block (95), and one side of the first sliding block (95) close to the frame (1) is fixedly connected with a clamping rod (96).

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