A roof waterproof protective layer crack auxiliary repair device and a use method thereof

By designing an auxiliary repair device for cracks in the roof waterproofing protective layer, the device utilizes a trolley platform and a scraping mechanism to achieve uniform filling and leveling of concrete slurry, solving the problem of easy cracking after roof protective layer repair in existing technologies and improving the repair effect.

CN119843908BActive Publication Date: 2026-05-01CHINA MCC17 GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA MCC17 GRP CO LTD
Filing Date
2025-03-11
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing concrete roof protective layers are prone to secondary cracking after crack repair.

Method used

A device for auxiliary repair of cracks in roof waterproofing protective layer was designed, including a trolley platform, a material cylinder, a material feeding mechanism, and a material scraping mechanism. The material is fed through the material cylinder and the concrete slurry is scraped and leveled by a push rod motor and slide rail to ensure uniform filling.

Benefits of technology

It effectively fills and smooths the concrete slurry, preventing secondary cracking of the repaired roof waterproofing layer and improving the durability and safety of the repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of roof waterproof protective layer crack auxiliary repair device and use method, to solve the problem that concrete roof protective layer crack is prone to secondary cracking after repair, device includes trolley platform, material cylinder, discharging mechanism and scraping mechanism, material cylinder is filled with concrete slurry, and support plate is driven to move down by push rod motor, and slurry is filled into crack by discharging cylinder, simultaneously, scraping mechanism moves down with slide plate, and scraping plate is unfolded by slide rail, and the filled slurry is scraped flat and even, to ensure uniform repair, after repair is completed, push rod motor resets, and device moves away;The device is simple to operate, can effectively prevent secondary cracking, and improve repair effect.
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Description

Technical Field

[0001] This invention relates to the field of concrete roof protective layer repair, and more particularly to an auxiliary repair device and method for repairing cracks in roof waterproof protective layers. Background Technology

[0002] The main function of the concrete roof protective layer is to protect the waterproofing layer, reinforcing steel, and the entire roof structure, ensuring its durability and safety.

[0003] Over long-term use and erosion, cracks may appear in the concrete roof protective layer, reducing its protection for components such as the waterproofing layer or reinforcing steel. Therefore, crack repair is necessary. Existing repair methods typically involve treating the cracks and then filling them with concrete grout. However, such repairs are prone to causing further cracking at the repair site. Therefore, this paper proposes an auxiliary repair device and method for repairing cracks in the roof waterproofing protective layer. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary repair device and method for cracks in the roof waterproof protective layer, which solves the problem that existing concrete roof protective layers are prone to cracking and are still prone to secondary cracking after repair.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary repair device and method for repairing cracks in a roof waterproofing protective layer, comprising a trolley platform, a handrail and a fixing frame installed on the trolley platform, a material cylinder installed on the fixing frame, a feeding mechanism at the bottom of the material cylinder for feeding the repair filler contained in the material cylinder, multiple push rod motors installed on the trolley platform, a support plate connected to each of the push rod motors, a slide rail penetrating through the support plate and the trolley platform, a slide plate connected to the support plate, a sliding plate slidably connected in the slide rail, and a scraping mechanism at the lower end of the slide plate for scraping and smoothing the material from the material cylinder.

[0006] Preferably, the feeding mechanism includes a partition cylinder, a feeding cylinder, a side plate, a guide rod seat, and a push plate. The outer side of the partition cylinder is connected to an array of connecting rods, which are connected to the inner wall of the feeding cylinder. The feeding cylinder is slidably sleeved inside the feeding cylinder, and the upper end of the feeding cylinder is fitted with the partition cylinder. The side plate is connected to the outer side of the feeding cylinder below the feeding cylinder. The guide rod seat is connected to the outer side of the feeding cylinder, and the side plate is slidably sleeved on the outer side of the guide rod seat. The push plate is connected to the support plate, and the push plate abuts against the upper end face of the side plate.

[0007] Preferably, a spring is sleeved on the outer side of the guide rod seat, and the two ends of the spring are respectively connected to the material cylinder and the side plate.

[0008] Preferably, the lower end of the material cylinder is located within the slide rail, and the side plate, guide rod seat, and push plate are all located within the slide rail.

[0009] Preferably, the scraping mechanism includes a vertical plate, a mounting base, a scraper, a limiting seat, and a guide plate. The lower end of the sliding plate is connected to the vertical plate, and the mounting base is connected to the lower end of the vertical plate. Scrapers are symmetrically connected to both sides of the mounting base via spiral hinges. The limiting seat is connected to the mounting base, and the scraper and the limiting seat cooperate and abut against each other. The guide plate is connected to the lower side of the trolley platform, and the scraper and the guide plate slide against each other.

[0010] Preferably, the mounting base and the limiting base are slidably connected within the guide plate.

[0011] The following are the specific steps for using an auxiliary repair device for cracks in a roof waterproofing protective layer:

[0012] S1. Preparation stage: The pre-made concrete slurry is filled into the material cylinder; the device is moved to the roof crack using the handrail on the trolley platform;

[0013] S2. Discharge Stage: Adjust the downward movement of the support plate to align the discharge cylinder with the crack; fill the crack with concrete slurry from the discharge cylinder using the discharge mechanism. Specific operations are as follows:

[0014] The push rod motor pushes the support plate downward, causing the push plate to contact the side plate, which in turn pushes the discharge cylinder downward, allowing the concrete slurry to flow out of the discharge cylinder and fill the cracks; the spring plays a buffering and restoring role when the side plate moves;

[0015] S3. Smoothing Stage: As the support plate moves downward, the sliding plate drives the scraping mechanism to move down until it contacts the ground. Through the sliding of the slide rail, the sliding plate moves, causing the scraper to unfold under the action of the guide plate, smoothing and evenly spreading the concrete slurry filling the cracks. Specific operations are as follows:

[0016] The scraper unfolds by rotating via a spiral hinge and engages with a limiting seat to ensure that the angle and position of the scraper are suitable for the leveling operation; guided by the guide plate, the scraper slides along the direction of the crack to ensure that the concrete slurry is evenly distributed.

[0017] S4. Completion Stage: After leveling, the push rod motor drives the support plate to move up, resetting the feeding cylinder and scraping mechanism; the device is then removed to complete the crack repair.

[0018] Through the above steps, the device can effectively fill the cracks with concrete slurry and smooth it out with a scraper, ensuring that the repaired roof waterproofing layer is not prone to secondary cracking.

[0019] Compared with related technologies, the auxiliary repair device and method for repairing cracks in the roof waterproofing protective layer provided by the present invention have the following beneficial effects:

[0020] This invention involves filling a prepared concrete slurry container with a material cylinder, which can be pulled to the crack via a trolley platform. By adjusting the downward movement of the support plate, the concrete slurry is filled into the crack through the material cylinder. Simultaneously, a scraper is moved down to contact the ground, and then the scraper, which is rotatably connected to the mounting base, is rotated and unfolded by the sliding rail to evenly spread the concrete slurry into the crack, making it convenient to operate and use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a cross-sectional view of the structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the scraping mechanism of the present invention.

[0024] Figure 4 This is a top view of the present invention.

[0025] In the diagram: 1. Trolley platform; 2. Handrail; 3. Fixing frame; 4. Material cylinder; 5. Push rod motor; 6. Support plate; 7. Slide rail; 8. Slide rail; 9. Slide plate; 10. Vertical plate; 11. Mounting base; 12. Scraper; 13. Limiting seat; 14. Divider cylinder; 15. Feed cylinder; 16. Side plate; 17. Guide rod seat; 18. Spring; 19. Push plate; 20. Guide plate; 21. Connecting rod. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Example 1:

[0028] Please see Figure 1-4The present invention provides a technical solution: an auxiliary repair device and method for repairing cracks in a roof waterproofing protective layer, comprising a trolley platform 1, a handrail 2 and a fixing frame 3 installed on the trolley platform 1, a material cylinder 4 installed on the fixing frame 3, a feeding mechanism at the bottom of the material cylinder 4 for feeding the repair filler contained in the material cylinder 4, and multiple push rod motors 5 installed on the trolley platform 1, with a support plate 6 connecting all the push rod motors 5.

[0029] The feeding mechanism includes a partition cylinder 14, a feeding cylinder 15, a side plate 16, a guide rod seat 17, and a push plate 19. The outer side of the partition cylinder 14 is connected to a connecting rod 21, which is connected to the inner wall of the material cylinder 4 through the connecting rod 21. The feeding cylinder 15 is slidably sleeved inside the material cylinder 4, and the upper end of the feeding cylinder 15 is fitted with the partition cylinder 14. The side plate 16 is connected to the outer side of the feeding cylinder 15 below the material cylinder 4. The guide rod seat 17 is connected to the outer side of the material cylinder 4, and the side plate 16 is slidably sleeved on the outer side of the guide rod seat 17. The push plate 19 is connected to the support plate 6, and the push plate 19 is in contact with the upper end face of the side plate 16.

[0030] like Figure 2 As shown, the pusher motor 5 drives the support plate 6 to move downward, which in turn drives the pusher plate 19 to move downward. The pusher plate 19 then moves downward against the side plate 16, pulling the feed cylinder 15 to slide downward at the lower end of the feed cylinder 4. This causes the clamping sleeve between the upper end of the feed cylinder 15 and the partition cylinder 14 to be removed. As a result, the concrete slurry will enter the feed cylinder 15 from between the partition cylinder 14 and the inner wall of the feed cylinder 4, and flow out from the lower end of the feed cylinder 15, which has already descended, into the corresponding crack to fill the crack.

[0031] A spring 18 is sleeved on the outer side of the guide rod seat 17. The two ends of the spring 18 are connected to the material cylinder 4 and the side plate 16 respectively. The spring 18 allows the side plate 16 to be pulled up and the lower material cylinder 15 to move upward when there is no push plate 19 to resist it, so that the lower material cylinder 15 can contact the partition cylinder 14 again to seal the concrete slurry contained in the material cylinder 4.

[0032] The lower end of the material cylinder 4 is located inside the slide rail 7. The side plate 16, guide rod seat 17, and push plate 19 are all located inside the slide rail 7. The setting of the slide rail 7 also facilitates the passage of the lower end of the material cylinder 4, allowing it to pass through the slide rail 7 to the bottom of the trolley platform 1 for material unloading.

[0033] The support plate 6 and the trolley platform 1 are both provided with slide rails 7. The support plate 6 is connected to the slide rail 8. The slide plate 9 is slidably connected inside the slide rail 8. The lower end of the slide plate 9 is provided with a scraping mechanism, which is used to scrape and smooth the material from the material cylinder 4.

[0034] The scraping mechanism includes a vertical plate 10, a mounting base 11, a scraper 12, a limiting seat 13, and a guide plate 20. The lower end of the slide plate 9 is connected to the vertical plate 10, and the mounting base 11 is connected to the lower end of the vertical plate 10. The scraper 12 is symmetrically connected to both sides of the mounting base 11 via a spiral hinge. The limiting seat 13 is connected to the mounting base 11, and the scraper 12 and the limiting seat 13 cooperate to abut against each other. The guide plate 20 is connected to the lower side of the trolley platform 1, and the scraper 12 and the guide plate 20 slide to abut against each other. The mounting base 11 and the limiting seat 13 are slidably connected inside the guide plate 20, so that the scraper 12 can cooperate to abut against the guide plate 20. When the two slide plates 9 approach each other, the scraper 12 is driven to overcome the elastic force of the spring hinge and rotate to be stored inside the guide plate 20. Conversely, it unfolds until it cooperates with the limiting seats 13 on both sides to abut against each other and is limited.

[0035] like Figure 1 As shown in Figure 3, when the support plate 6 moves down, it will cause the slide rail 8, slide plate 9, vertical plate 10, mounting base 11, and scraper 12 connected to the mounting base 11 by spring hinges to all move down, so that the scraper 12 can contact the ground. At the same time, the slide rail controls the slide plates on both sides to move away from each other, so that the mounting bases 13 at both ends of the guide plate 20 move away from each other. Without the limit of the guide plate 20, the scraper 12 can rotate from a state parallel to the guide plate 20 to a state parallel to the guide plate 20. By pulling the trolley platform 1, the scraper 12 can be driven to scrape and smooth the concrete slurry that has been filled in the ground cracks.

[0036] Among them, the slide rail 8 adopts existing technologies such as linear screw guide rail and linear roller guide rail.

[0037] The method of using the auxiliary repair device for cracks in the roof waterproofing protective layer in the above embodiments is as follows:

[0038] S1. Preparation stage: The pre-made concrete slurry is filled into the material cylinder 4; the device is moved to the roof crack by the handrail 2 on the trolley platform 1.

[0039] S2. Discharge Stage: Adjust the downward movement of the support plate 6 to align the discharge cylinder 15 with the crack; fill the crack with concrete slurry from the discharge cylinder 4 using the discharge mechanism. The specific operation is as follows:

[0040] The push rod motor 5 pushes the support plate 6 downward, causing the push plate 19 to contact the side plate 16, which in turn pushes the discharge cylinder 15 downward, allowing the concrete slurry to flow out from the discharge cylinder 15 and fill the cracks; the spring 18 plays a buffering and resetting role when the side plate 16 moves.

[0041] S3. Smoothing Stage: As the support plate 6 moves downward, the sliding plate 9 drives the scraping mechanism to move downward until it contacts the ground; through the sliding of the slide rail 8, the sliding plate 9 moves, causing the scraper 12 to unfold under the action of the guide plate 20, scraping and smoothing the concrete slurry filling the cracks. The specific operation is as follows:

[0042] The scraper 12 is rotated and unfolded by the spiral hinge, and cooperates with the limiting seat 13 to ensure that the angle and position of the scraper 12 are suitable for the leveling operation; under the guidance of the guide plate 20, the scraper 12 slides along the crack direction to ensure that the concrete slurry is evenly distributed.

[0043] S4. Completion Stage: After leveling, the push rod motor 5 drives the support plate 6 to move upward, so that the feeding cylinder 15 and the scraping mechanism are reset; the device is removed to complete the crack repair.

[0044] Through the above steps, the device can effectively fill the cracks with concrete slurry and smooth it out with scraper 12, ensuring that the repaired roof waterproofing protective layer is not prone to secondary cracking.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for auxiliary repair of cracks in a roof waterproofing protective layer, comprising a trolley platform (1), a handrail (2) and a fixing frame (3) mounted on the trolley platform (1), and a material cylinder (4) mounted on the fixing frame (3), characterized in that, The bottom of the material cylinder (4) is provided with a feeding mechanism, which is used to feed the repair filler contained in the material cylinder (4). Multiple push rod motors (5) are installed on the trolley platform (1). Each push rod motor (5) is connected to a support plate (6). A slide rail (7) is opened through the support plate (6) and the trolley platform (1). A slide rail (8) is connected to the support plate (6). A slide plate (9) is slidably connected in the slide rail (8). A scraping mechanism is provided at the lower end of the slide plate (9). The scraping mechanism is used to scrape and smooth the material fed from the material cylinder (4). The scraping mechanism includes a vertical plate (10), a mounting base (11), a scraper (12), a limiting seat (13), and a guide plate (20). The lower end of the sliding plate (9) is connected to the vertical plate (10). The mounting base (11) is connected to the lower end of the vertical plate (10). The two sides of the mounting base (11) are symmetrically connected to the scraper (12) by a spiral hinge. The limiting seat (13) is connected to the mounting base (11), and the scraper (12) and the limiting seat (13) cooperate to abut against each other. The guide plate (20) is connected to the lower side of the trolley platform (1), and the scraper (12) and the guide plate (20) slide against each other.

2. The auxiliary repair device for cracks in the roof waterproofing protective layer according to claim 1, characterized in that, The feeding mechanism includes a partition cylinder (14), a feeding cylinder (15), a side plate (16), a guide rod seat (17), and a push plate (19). The outer side of the partition cylinder (14) is connected to a connecting rod (21), which is connected to the inner wall of the material cylinder (4) through the connecting rod (21). The feeding cylinder (15) is slidably sleeved inside the material cylinder (4), and the upper end of the feeding cylinder (15) is fitted with the partition cylinder (14). The side plate (16) is connected to the outer side of the feeding cylinder (15) below the material cylinder (4). The guide rod seat (17) is connected to the outer side of the material cylinder (4), and the side plate (16) is slidably sleeved on the outer side of the guide rod seat (17). The push plate (19) is connected to the support plate (6), and the upper end face of the push plate (19) is in contact with the side plate (16).

3. The auxiliary repair device for cracks in the roof waterproofing protective layer according to claim 2, characterized in that, A spring (18) is sleeved on the outside of the guide rod seat (17), and the two ends of the spring (18) are respectively connected to the material cylinder (4) and the side plate (16).

4. The auxiliary repair device for cracks in the roof waterproofing protective layer according to claim 3, characterized in that, The lower end of the material cylinder (4) is located in the slide (7), and the side plate (16), guide rod seat (17), and push plate (19) are all located in the slide (7).

5. The auxiliary repair device for cracks in the roof waterproofing protective layer according to claim 4, characterized in that, The mounting base (11) and the limiting base (13) are slidably connected within the guide plate (20).

6. The method of using the auxiliary repair device for cracks in the roof waterproofing protective layer according to claim 5, characterized in that, The specific steps are as follows: S1, Preparation stage: The pre-made concrete slurry is placed in the material cylinder (4); the device is moved to the roof crack by the handrail (2) on the trolley platform (1); S2, Discharge Stage: Adjust the downward movement of the support plate (6) to align the discharge cylinder (15) with the crack; fill the crack with concrete slurry from the discharge cylinder (4) through the discharge mechanism, as follows: The push rod motor (5) pushes the support plate (6) down, causing the push plate (19) to contact the side plate (16), and then pushes the discharge cylinder (15) down, so that the concrete slurry flows out from the discharge cylinder (15) to fill the crack; the spring (18) plays a buffering and resetting role when the side plate (16) moves. S3, Leveling Stage: As the support plate (6) moves down, the sliding plate (9) drives the scraping mechanism to move down to contact the ground; through the sliding of the slide rail (8), the sliding plate (9) is driven to move, so that the scraper (12) unfolds under the action of the guide plate (20) to scrape and smooth the concrete slurry filling the cracks. The specific operation is as follows: The scraper (12) is rotated and unfolded by the spiral hinge, and cooperates with the limiting seat (13) to ensure that the angle and position of the scraper (12) are suitable for the leveling operation; the scraper (12) slides along the crack direction under the guidance of the guide plate (20) to ensure that the concrete slurry is evenly distributed. S4. Completion Stage: After the leveling is completed, the push rod motor (5) drives the support plate (6) to move upward, so that the feeding cylinder (15) and the scraping mechanism are reset; the device is removed to complete the crack repair. Through the above steps, the device can effectively fill the cracks with concrete slurry and smooth it out with a scraper (12), ensuring that the repaired roof waterproofing protective layer is not prone to secondary cracking.

Citation Information

Patent Citations

  • Asphalt pavement crack repairing and scraping device

    CN203393589U

  • Concrete crack repairing device

    CN218373273U