Visualizing concrete crack repair sealing and grouting device and method of use

Abstract

This invention discloses a visualized concrete crack repair and sealing grouting device and its usage method. The visualized concrete crack repair and sealing grouting device includes: a grouting device body and a sealing grouting structure; the grouting device body is equipped with a storage tank and a pump head, the storage tank being connected to the pump head via a delivery pipe, the pump head being connected to one end of a grouting head via the delivery pipe, and the other end of the grouting head being connected to the sealing grouting structure; the sealing grouting structure includes a crack sealing part and a weighted fixing part, the weighted fixing part surrounding both sides of the crack sealing part, the crack sealing part being a transparent structure, and having several grouting holes, the grouting holes being connected to the grouting head. This invention has a simple structure, is easy to maintain, and can effectively solve the problems of non-invasive repair of concrete cracks and visualize the grouting repair process.

Description

Technical Field

[0001] This invention relates to the field of grouting repair technology in geotechnical engineering, and in particular to a visual concrete crack repair and sealing grouting device and its usage method. Background Technology

[0002] Concrete structures are the most widely used type of structure in civil engineering. Currently, my country consumes over 2 billion cubic meters of concrete annually in construction projects, accounting for about half of the world's total. However, due to factors such as improper construction pouring, insufficient reinforcement, concrete shrinkage and aging, and excessive loads, concrete structures often develop cracks. These cracks allow substances such as moisture, acids, and alkalis to penetrate the structure, causing destructive damage such as steel corrosion and concrete spalling. Furthermore, they affect the building's appearance, as well as the concrete structure's load-bearing capacity and service life. Therefore, crack repair work is necessary for these concrete structures.

[0003] Currently, the repair methods for concrete cracks commonly include surface repair, surface grouting, and drilling grouting. Surface repair involves applying material to the crack surface to seal the crack opening, thus isolating it from the outside environment. While this method can initially prevent moisture penetration, over time, the surface material ages, significantly weakening its protective ability and failing to fundamentally solve the crack problem. Surface grouting uses a pump to force grout into the crack at high pressure. To ensure grouting effectiveness, the pump initially applies grout over a large area, but due to the small size of the crack and the complexity of its internal structure, it often only penetrates to a shallow depth, resulting in poor repair. Furthermore, the grouting process cannot be monitored or controlled during operation, leading to incomplete filling of the crack. Existing equipment is also too cumbersome, inconvenient to use, and its structural defects easily lead to material waste and secondary environmental pollution. It also fails to fundamentally solve the crack problem and may even cause secondary damage to the crack due to excessive grouting pressure, further compromising structural safety. The drilling and grouting method involves drilling at an angle from both sides of the crack to the crack and then injecting grout. This method has significant drawbacks. On the one hand, it can cause significant damage to the structure. On the other hand, it is impossible to accurately determine whether the hole has reached the crack, which often leads to over-drilling and secondary damage to the structure.

[0004] Patent application CN202122592480.3 discloses a grouting device for repairing wall leaks. This device uses a grouting tube, rotating shaft, rotary motor, spiral pusher plate, and grouting pipe to grout cracks. A sliding plate, scraper, vertical plate, and compression spring are used to smooth the mortar outside the cracks. However, this complex device cannot achieve non-invasive repair of concrete cracks or visualize the grouting process. Therefore, accurate and thorough crack repair is crucial for the safety of concrete structures. There is an urgent need for a visualized concrete crack repair and sealing grouting device and method that can efficiently and safely repair cracks, visualize the grouting process, simplify operation, save resources, and protect the environment. Summary of the Invention

[0005] The main objective of this invention is to provide a visual concrete crack repair and sealing grouting device and its usage method, which solves the problems of how to achieve non-invasive repair of concrete cracks and make the grouting repair process visible.

[0006] To achieve the above objectives, the present invention provides a visual concrete crack repair and sealing grouting device and its usage method. The visual concrete crack repair and sealing grouting device includes: a grouting device body and a sealing grouting structure; the grouting device body is provided with a storage tank and a pump head, the storage tank is connected to the pump head via a delivery pipe, the pump head is connected to one end of the grouting head via the delivery pipe, and the other end of the grouting head is connected to the sealing grouting structure; the sealing grouting structure includes a crack sealing part and a weighted fixing part, the weighted fixing part surrounding both sides of the crack sealing part, the crack sealing part being a transparent structure, and having a plurality of grouting holes connected to the grouting head.

[0007] In one preferred embodiment, the weighted fixing part is an elastic structure.

[0008] In one preferred embodiment, the grouting device body is further provided with a peristaltic pump, which is used to control the quantitative or metering delivery of grout in the conveying pipe.

[0009] In one preferred embodiment, the peristaltic pump is equipped with a display screen, which is used to display the slurry volume in real time.

[0010] In one preferred embodiment, the material delivery pipe is detachably and elastically connected to the grouting head.

[0011] In one preferred embodiment, a V-shaped diaphragm is provided at the connection between the conveying pipe and the grouting head, with the opening of the V-shaped diaphragm facing the conveying pipe to prevent grout backflow.

[0012] In one preferred embodiment, the crack sealing part and the weighted fixing part are detachably connected by a snap-fit ​​mechanism.

[0013] One preferred embodiment is that a plurality of the grouting holes are arranged at equal intervals.

[0014] In one preferred embodiment, the grouting hole includes a grouting cap and a channel, one end of the grouting cap is connected to the grouting head, and the other end of the grouting cap is connected to the channel.

[0015] A method for using a visual concrete crack repair and sealing grouting device includes the following steps:

[0016] S1. Detect the width and depth of cracks using a crack detector, and calculate the crack volume in equal segments to obtain the grouting value for each segment;

[0017] S2. Clean the crack and surrounding environment of this section, apply special adhesive to the outer surface of the weighted fixing part, align the sealing grouting structure coated with special adhesive with the direction of the crack of this section, compact and bond it for installation.

[0018] S3. Connect the material delivery pipe to the grouting hole, start the grouting device to begin grouting, observe the grouting volume through the peristaltic pump, and observe the grouting status in real time through the crack sealing part. When the grouting volume reaches the first grouting value, slow down the grouting speed or increase the grouting time interval through the peristaltic pump; when the grouting volume is equal to or greater than the grouting value, the grouting ends.

[0019] S4. Install the material conveying pipe to the interval grouting hole for segmented grouting repair. After the crack in this section is repaired, remove the sealing grouting structure and clean the crack and the surrounding environment.

[0020] S5. Repeat steps S2-S4 above to perform grouting repair on adjacent crack segments until the non-invasive grouting repair of the entire crack segment is completed.

[0021] In the above technical solution of the present invention, a visualized concrete crack repair and sealing grouting device includes a grouting device body and a sealing grouting structure. The grouting device body is equipped with a storage tank and a pump head. The storage tank is connected to the pump head via a delivery pipe. The pump head is connected to one end of the grouting head via the delivery pipe, and the other end of the grouting head is connected to the sealing grouting structure. The sealing grouting structure includes a crack sealing part and a weighted fixing part. The weighted fixing part surrounds both sides of the crack sealing part. The crack sealing part is a transparent structure and has several grouting holes, which are connected to the grouting head. The present invention has a simple structure and is easy to maintain. By bonding the weighted fixing part to the crack surface and observing the filling and flow of the grout during the grouting process in real time through the crack sealing part, it can effectively solve the problems of non-invasive repair of concrete cracks and visualize the grouting repair process.

[0022] In this invention, grout can be quantitatively or meteredly delivered by a peristaltic pump, and the grouting is continuously low-pressure and constant, which is less likely to cause secondary damage to the crack structure. At the same time, with the material delivery pipe and grouting hole installed at intervals, the grouting repair is done in a step-by-step manner, so that the grout can fill the crack pores and achieve quantitative and precise repair of the crack.

[0023] In this invention, the device is small in size, easy to carry, and does not require a generator; it can operate using a portable power source, which greatly facilitates field construction.

[0024] In this invention, the crack sealing part and the weighted fixing part are detachably connected by a snap-fit ​​mechanism, and the weighted fixing part can be replaced at any time according to different projects. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a visualized concrete crack repair and sealing grouting device according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram (1) of the sealing grouting structure of an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram (2) of the sealing grouting structure according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram illustrating the usage process of a visual concrete crack repair and sealing grouting device according to an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] label name label name 1 Grouting device body 2 Storage tank 3 pump head 4 feed pipe 5 Grouting head 6 peristaltic pump 7 Sealed grouting structure 8 Weighted fixing part 9 Crack sealing 10 Grouting holes 11 Grouting cap 12 Confucian channel

[0032] The realization of the objective, functional characteristics and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] 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 a part of the embodiments of the present invention, and not all of them. 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.

[0034] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0036] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0037] See Figure 1-3 According to one aspect of the present invention, the present invention provides a visual concrete crack repair and sealing grouting device and a method of use, wherein the visual concrete crack repair and sealing grouting device includes: a grouting device body 1 and a sealing grouting structure 7; the grouting device body 1 is provided with a storage tank 2 and a pump head 3, the storage tank 2 is connected to the pump head 3 through a conveying pipe 4, the pump head 3 is connected to one end of a grouting head 5 through the conveying pipe 4, and the other end of the grouting head 5 is connected to the sealing grouting structure 7; the sealing grouting structure 7 includes a crack sealing part 9 and a weighted fixing part 8, the weighted fixing part 8 is arranged around both sides of the crack sealing part 9, the crack sealing part 9 is a transparent structure, the crack sealing part 9 is provided with a plurality of grouting holes 10, and the grouting holes 10 are connected to the grouting head 5.

[0038] Specifically, in this embodiment, the grouting device body 1 is also equipped with a peristaltic pump 6, which is used to control the quantitative or metered delivery of grout in the delivery pipe 4. The peristaltic pump 6 is powered by a stepper motor, and the grouting pressure is adjusted by adjusting the stepper motor speed, that is, the grout flow rate is adjusted by adjusting the stepper motor speed. The flow rate control range is 0-20 ml / min. At the same time, a larger grout flow rate can be obtained by replacing the pump head 3 or the delivery pipe 4 with a larger diameter. The peristaltic pump 6 is also equipped with a display screen, which is used to display the grout volume in real time. By using the peristaltic pump 6 to quantitatively or meter the grout to deliver grout to the crack, the grouting is continuously low-pressure and constant, avoiding secondary damage to the crack structure. In this invention, the peristaltic pump 6 can be powered by a 24V mobile power supply to the stepper motor, eliminating the need for a separate generator, which greatly facilitates field construction.

[0039] Specifically, in this embodiment, the storage tank 2 can be set in one, two, or three, etc., according to the needs of the grouting material. The specific number is not limited and can be set as needed. The number of pump heads 3 is adapted to the number of storage tanks 2. The pump heads 3 and the peristaltic pump 6 are fixedly connected to the grouting device body 1 by bolts. The storage tank 2 is hung behind the peristaltic pump 6 through a basket-type hanging groove. The conveying pipe 4 connected to the storage tank 2 passes through the connection channel of the grouting device body 1, passes through the pump head 3, and connects to the grouting head 5. The conveying pipe 4 and the grouting head 5 are detachably elastically connected. A V-shaped diaphragm is provided at the connection between the conveying pipe 4 and the grouting head 5. The opening of the V-shaped diaphragm is set towards the conveying pipe 4 to prevent grout backflow and blockage of the conveying pipe 4. The grouting head 5 can be a mixed grouting head 5 and / or a regular grouting head 5. The grouting head 5, or the mixing grouting head 5, has two or more branch pipes that are connected one-to-one with two or more material delivery pipes 4, converging into a single channel for output, thereby achieving grout mixing. It is generally suitable for situations where there are multiple engineering grouting materials. A V-shaped diaphragm is provided at the connection between the mixing grouting head 5 and the material delivery pipe 4. The opening direction of the V-shaped diaphragm is set towards the material delivery pipe 4 to prevent backflow during grout mixing, thus avoiding blockage of the material delivery pipe 4. The output end of the mixing grouting head 5 is connected to a reducer, which cooperates with the grouting hole 10 of the sealed grouting structure 7. The ordinary grouting head 5 has only a single input and a single output, with one end connected to the material delivery pipe 4 and the other end connected to the grouting hole 10. The present invention does not limit the grouting head 5, and the mixing grouting head 5 and / or the ordinary grouting head 5 can be selected according to actual needs.

[0040] Specifically, in this embodiment, the sealing grouting structure 7 includes a crack sealing part 9 and a weighted fixing part 8. The weighted fixing part 8 surrounds both sides of the crack sealing part 9, and the crack sealing part 9 and the weighted fixing part 8 are detachably connected by a snap-fit ​​mechanism. The crack sealing part 9 is provided with a plurality of grouting holes 10, which are connected to the grouting head 5. Each grouting hole 10 includes a grouting cap 11 and a channel 12. The diameter of the grouting cap 11 is larger than the diameter of the channel 12, and the grouting cap 11 is connected to the output end of the grouting head 5. The grouting holes 10 are evenly spaced on the crack sealing part 9. In this invention, the diameter and spacing of the grouting holes 10 can be set according to engineering needs, and the diameter and depth of the grouting cap 11 and the channel 12 can also be set according to engineering needs. This invention does not impose any limitations.

[0041] Specifically, in this embodiment, the crack sealing part 9 is a transparent structure. The crack sealing part 9 is made of a transparent material, such as PP, acrylic, or plastic steel. The transparent crack sealing part 9 is closely attached to the crack defect, and while sealing the crack, the filling and flow of grout during the grouting process can be observed in real time, making the grouting repair process visible and allowing for real-time monitoring of the grouting conditions.

[0042] Specifically, in this embodiment, the weighted fixing part 8 is an elastic structure made of an elastic material, such as silicone or rubber. The material of the weighted fixing part 8 can be changed and installed according to different projects. When repairing vertical cracks, a more elastic material such as silicone can be used, while a heavier material such as rubber can be used when repairing horizontal cracks to increase the friction between the crack sealing part 9 and the working surface and stabilize the sealing grouting structure 7. The outer surface of the weighted fixing part 8 can be bonded to the surface around the crack with a special adhesive. The weighted fixing part 8 and the crack sealing part 9 are detachably connected by a snap-fit ​​method, so that the weighted fixing part 8 can be replaced according to different projects and can be reused multiple times.

[0043] See Figure 4 According to another aspect of the present invention, the present invention provides a visual concrete crack repair and sealing grouting device and a method of using the device, wherein the method of using the visual concrete crack repair and sealing grouting device includes the following steps:

[0044] S1. Detect the width and depth of cracks using a crack detector, and calculate the crack volume in equal segments to obtain the grouting value for each segment;

[0045] S2. Clean the crack and surrounding environment with alcohol or acetone, apply special adhesive to the outer surface of the weighted fixing part 8, and press and bond the sealing grouting structure 7 coated with special adhesive to the direction of the crack.

[0046] S3. Insert the material delivery pipe 4 into the grouting cap 11 to make the material delivery pipe 4 connected to the channel 12. Start the grouting device to begin grouting. Observe the grouting volume in real time through the display screen on the peristaltic pump 6 and observe the grouting status in real time through the crack sealing part 9. When the grouting volume reaches the first grouting value, slow down the grouting speed or increase the grouting time interval through the peristaltic pump 6. When the grouting volume is equal to or greater than the grouting value, the grouting ends.

[0047] S4. Install the material conveying pipe 4 into the interval grouting hole 10 for segmented grouting repair. After the crack in this section is repaired, remove the sealing grouting structure 7 and clean the crack in this section and the surrounding environment.

[0048] S5. Repeat steps S2-S4 above to perform grouting repair on adjacent crack segments until the non-invasive grouting repair of the entire crack segment is completed.

[0049] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A visual concrete crack repair and sealing grouting device, characterized in that, include: The grouting device body and the sealing grouting structure are as follows: The grouting device body is equipped with a storage tank and a pump head. The storage tank is connected to the pump head through a delivery pipe. The pump head is connected to one end of the grouting head through the delivery pipe. The other end of the grouting head is connected to the sealing grouting structure. The grouting device body is also equipped with a peristaltic pump, which is used to control the quantitative or metering delivery of grout in the delivery pipe. The delivery pipe is detachably and elastically connected to the grouting head. The sealing grouting structure includes a crack sealing part and a weighted fixing part. The weighted fixing part surrounds both sides of the crack sealing part. The crack sealing part is a transparent structure. The transparent crack sealing part is closely attached to the crack defect, allowing real-time observation of the grout filling and flow during the grouting process while sealing the crack. The crack sealing part is equipped with several grouting holes, which are connected to the grouting head. The weighted fixing part is an elastic structure. The outer surface of the weighted fixing part is coated with a special adhesive. The weighted fixing part is aligned with the crack direction and pressed tightly against the surrounding surface of the crack.

2. The visual concrete crack repair and sealing grouting device according to claim 1, characterized in that, The peristaltic pump is equipped with a display screen, which is used to display the slurry volume in real time.

3. The visual concrete crack repair and sealing grouting device according to claim 1, characterized in that, A V-shaped diaphragm is provided at the connection between the conveying pipe and the grouting head. The opening of the V-shaped diaphragm is oriented towards the conveying pipe to prevent grout backflow.

4. The visual concrete crack repair and sealing grouting device according to claim 1, characterized in that, The crack sealing part and the weighted fixing part are detachably connected by a snap-fit ​​mechanism.

5. The visual concrete crack repair and sealing grouting device according to claim 1, characterized in that, Several grouting holes are arranged at equal intervals.

6. The visual concrete crack repair and sealing grouting device according to claim 1, characterized in that, The grouting hole includes a grouting cap and a channel. One end of the grouting cap is connected to the grouting head, and the other end of the grouting cap is connected to the channel.

7. The method of using the visual concrete crack repair and sealing grouting device according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Detect the width and depth of cracks using a crack detector, and calculate the crack volume in equal segments to obtain the grouting value for each segment; S2. Clean the crack and surrounding environment of this section, apply special adhesive to the outer surface of the weighted fixing part, align the sealing grouting structure coated with special adhesive with the direction of the crack of this section, compact and bond it for installation. S3. Connect the material delivery pipe to the grouting hole, start the grouting device to begin grouting, observe the grouting volume through the peristaltic pump, and observe the grouting status in real time through the crack sealing part. When the grouting volume reaches the first grouting value, slow down the grouting speed or increase the grouting time interval through the peristaltic pump; when the grouting volume is equal to or greater than the grouting value, the grouting ends. S4. Install the material conveying pipe to the interval grouting hole for segmented grouting repair. After the crack in this section is repaired, remove the sealing grouting structure and clean the crack and the surrounding environment. S5. Repeat steps S2-S4 above to perform grouting repair on adjacent crack segments until the non-invasive grouting repair of the entire crack segment is completed.

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