Concrete structure coring rapid repairing equipment

The use of handheld mixing tanks and injection molding equipment enables rapid repair of holes in concrete structures, solving the problems of cumbersome procedures and high costs in existing technologies, improving repair efficiency and reducing equipment requirements.

CN223974915UActive Publication Date: 2026-03-06NANJING HYDRAULIC RES INST +1
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Patent Information

Application Number
CN202520343883.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-03-06
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing concrete core sampling repair methods involve cumbersome procedures, high manual mixing costs, and are not suitable for equipment used in small-scale repairs.

Method used

A handheld mixing tank and injection molding equipment are used to quickly repair holes in concrete structures. The repair material is mixed in the handheld mixing tank and then injected into the hole using an injection mold.

Benefits of technology

It improves repair efficiency, reduces reliance on large equipment, simplifies operating procedures, lowers costs, and the device is lightweight and easy to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses concrete structure coring rapid repairing equipment, and belongs to the technical field of concrete repairing of water transportation engineering. Comprising a handheld stirring tank and an injection mold, the hand-held stirring tank comprises a stirring tank body, which is provided with an inlet / outlet at a specified position; and the stirring assembly is arranged in the stirring tank body. The injection mold is provided with a receiving end and a feeding end; the receiving end is matched with the inlet and outlet, and the feeding end is matched with the hole; repairing materials enter the stirring tank body through the inlet and outlet to be evenly mixed, are discharged to the material receiving end through the inlet and outlet and then are fed into the hole through the feeding end. Manual material mixing and manual filling can be replaced through the handheld tank body and injection molding, the repairing efficiency is greatly improved, and meanwhile the requirement for repairing material mixing large-scale equipment is reduced.
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Description

Technical Field

[0001] This utility model belongs to the technical field of concrete repair in waterway engineering, specifically, it relates to a rapid repair equipment for core sampling of concrete structures. Background Technology

[0002] With the rapid development of my country's water transport industry, the scale and number of ship lock projects have also increased. Various potential hazards inevitably arise during the operation of ship locks, thus requiring regular inspections. According to JTS239-2015 "Technical Specification for Solid Testing of Concrete Structures in Water Transport Engineering," some mechanical performance parameters and all durability performance parameters require core sampling of the concrete structure on-site. Furthermore, the specification stipulates that any damage to the concrete structure caused by the on-site testing should be promptly repaired after the testing is completed.

[0003] Currently, the common method for core sampling repair of concrete involves manually mixing sand and gravel, then filling the cavity with the mixture using a trowel, and finally smoothing the surface. This method requires pre-mixing the repair material and then transferring it, which is cumbersome and the filler doesn't adhere quickly enough. Furthermore, when the repair volume is not large, it's not suitable to use existing large-scale mixing equipment for mixing, as the mixing cost is high. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a rapid repair equipment for core sampling of concrete structures to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows: a rapid repair device for core sampling of concrete structures, adapted to holes in concrete structures; comprising: a handheld mixing tank and a casting mold; wherein, the handheld mixing tank comprises:

[0006] The mixing tank has inlet and outlet at designated locations;

[0007] A stirring assembly is disposed within the stirring tank.

[0008] The injection mold has a receiving end, a feeding end, and a feeding trough connecting the receiving end and the feeding end; the receiving end is adapted to the inlet and outlet, and the feeding end is adapted to the hole; the repair material enters the mixing tank through the inlet and outlet for uniform mixing, and is discharged from the inlet and outlet to the receiving end, and then fed into the hole through the feeding end.

[0009] In a further embodiment, the stirring assembly includes:

[0010] A stirring shaft is installed inside the stirring tank along its long axis.

[0011] The stirring blade is fixed on the stirring shaft according to a predetermined shape;

[0012] The stirring handle is connected to one end of the stirring shaft and located outside the stirring tank.

[0013] In a further embodiment, a handle is fixed at a designated location on the mixing tank.

[0014] In a further embodiment, the handheld mixing tank further includes:

[0015] The material inlet leak-proof cover has one end hinged to the mixing tank body and the other end fastened by a nut; during uniform mixing, the material inlet leak-proof cover covers the inlet and outlet.

[0016] In a further embodiment, the mixing tank is a steel ellipsoidal shell; the mixing blade is a steel structure.

[0017] In a further embodiment, the handle is provided with a positioning groove, and the positioning groove is located on the same side as the inlet and outlet;

[0018] The outer side of the receiving end of the injection mold is provided with a positioning post extending outward by a predetermined length, and the positioning post is adapted to the positioning groove.

[0019] In a further embodiment, the handle is covered with a rubber hand guard.

[0020] The beneficial effects of this utility model are as follows: The handheld rapid repair equipment for core sampling of ship lock concrete structures disclosed in this utility model is equipped with a casting mold, replacing the currently commonly used method of manually mixing sand and gravel and then filling the mixture into the repair holes with a trowel. In other words, this utility model can replace manual mixing and manual filling with a handheld container and casting mold, greatly improving repair efficiency and reducing the need for large equipment for mixing repair materials.

[0021] Both the handheld mixing tank and the injection mold are reusable. The device is lightweight, simple in structure, easy to operate, and environmentally friendly, making it highly economical and versatile. Attached Figure Description

[0022] Figure 1 This is a front view of the installation between the injection mold and the hole in Example 1.

[0023] Figure 2 This is a side view of the installation between the injection mold and the hole in Example 1.

[0024] Figure 3 This is a side view of the setup between the handheld mixing tank, the mold, and the hole in Example 1.

[0025] Figure 4 Structure of a handheld mixing tank Figure 1 .

[0026] Figure 5 Structure of a handheld mixing tank Figure 2 .

[0027] Figures 1 to 5 The labels in the text are as follows: Hole A, Handheld Mixing Tank 1, Injection Mold 2, Mixing Tank Body 11, Inlet / Outlet 12, Mixing Shaft 13, Mixing Blade 14, Mixing Handle 15, Handle Protector 16, Receiving End 21, Feeding End 22, Positioning Post 23. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0029] Example 1

[0030] A rapid repair device for core sampling of concrete structures is disclosed, adapted for holes A in concrete structures. In this embodiment, the hole is generated during core sampling of the concrete structure on site, and hole A needs to be repaired after core sampling.

[0031] The rapid repair equipment for core sampling of concrete structures includes: a handheld mixing tank 1 and a casting mold 2. For example... Figure 1 As shown, the handheld mixing tank 1 includes: a mixing tank body 11, with an inlet and outlet at a designated location; the cross-sectional area of ​​the inlet and outlet should not be less than 10cm × 10cm. It also includes: a leak-proof cap for the material inlet, one end of which is hinged to the mixing tank body 11, and the other end is secured with a nut; during uniform mixing, the leak-proof cap covers the inlet and outlet. During filling, the hinge point between the leak-proof cap and the mixing tank body is located below the inlet and outlet, and the leak-proof cap can serve as a guide plate for the repair material.

[0032] In this embodiment, the mixing tank 11 is an elliptical body, so the inlet and outlet are located on the inclined surface to facilitate material discharge and feeding. The mixing tank 11 is equipped with a mixing assembly, which is used to mix the repair materials, such as fillers and external dressings, within the mixing tank 11.

[0033] To ensure the repair material from the mixing tank 11 is smoothly delivered into the corresponding hole A, the injection mold 2 in this embodiment has a receiving end 21, a feeding end 22, and a feed trough connecting the receiving end and the feeding end. The receiving end 21 is adapted to the inlet / outlet, and the feeding end 22 is adapted to the hole A. (Combined with...) Figure 1The injection mold 2 is made of hard plastic or steel. The feeding end has a crescent-shaped cross-section, gradually thickening after the receiving end, with the inner surface gradually rising to form a slope, meaning the depth of the feed groove increases from the receiving end to the feeding end. The rear end continues to extend outward based on the cross-sectional shape at the position where the front end extends to the surface of hole A, forming a U-shaped bottom. The device is mounted on the lower surface of the core hole A, allowing for tamping operations during filling while preventing the filler material from being exposed and lost. Furthermore, the cross-sectional diameter of the feeding end 22 can be set to 5cm, 8cm, or 10cm depending on the core size.

[0034] In a further embodiment, the stirring assembly includes a stirring shaft 13 mounted along its long axis within the stirring tank 11. Stirring blades 14 of a predetermined shape are fixedly mounted on the stirring shaft 13, such as by welding, to meet the strength required for thorough stirring. Alternatively, the predetermined shape may be helical, etc. Figure 5 As shown, it can also be other shapes.

[0035] It is worth mentioning that the two ends of the stirring shaft 13 are sealed and rotatably connected to the mixing tank 11. To facilitate the rotation of the stirring shaft 13, a stirring handle 15 is connected to one end of the stirring shaft 13, and the stirring handle 15 is located outside the mixing tank 11. The stirring handle 15 is provided to drive the stirring shaft 13 to rotate, thereby achieving the mixing of the composite material.

[0036] Furthermore, the mixing tank 11 is a steel ellipsoidal shell with a thickness of not less than 5 mm. The mixing blade 14 is a steel structure.

[0037] For ease of operation, a handle 16 is fixed at a designated position on the mixing tank 11. The handle 16 is covered with a rubber hand guard to stabilize the mixing tank 11 during mixing.

[0038] In another embodiment, to achieve the stability and convenience required for injection, a positioning groove is provided on the handle 16, which is located on the same side as the inlet and outlet; correspondingly, a positioning post 23 extending outward by a predetermined length is provided on the outer side of the receiving end 21 of the injection mold 2, and the positioning post 23 is adapted to the positioning groove. In other words, the front end of the handle 16 has an open structure, which allows the anti-leakage mold handle to be inserted during filling, so that the filler material can enter the hole A along the upper surface of the injection mold 2.

[0039] When using it, after the concrete structure core is taken, the core hole A is initially cleaned to ensure that the hole A is clean and free of debris. The injection mold 2 is then placed at the hole A to initially impregnate the inside of the mixing tank 11.

[0040] Open the inlet / outlet 12 of the handheld mixing tank 1, pour in the filler mixture, close the inlet / outlet 12, and mix. Invert the mixing tank 11, align the positioning groove at the front end of the handle 16 with the positioning post 23 of the injection mold 2, and continue to rotate the mixing handle 15 to make the mixed repair material overflow from the inlet / outlet 12 onto the upper surface of the injection mold 2, and flow along its surface into the hole A. While rotating, the injection mold 2 can be moved inward and outward to tamp and fill the repair material evenly.

Claims

1. A concrete structure core drilling quick repair equipment adapted to a hole of a concrete structure; characterized in that, The application relates to a hand-held stirring pot and a injection mold. The hand-held stirring pot comprises: a stirring pot body with an inlet and an outlet at a designated position; a stirring assembly arranged in the stirring pot body; the injection mold has a material receiving end, a material feeding end and a material inlet groove connected with the material receiving end and the material feeding end; the material receiving end is matched with the inlet and outlet, the material feeding end is matched with the hole, and the repair material is uniformly mixed in the stirring pot body through the inlet and outlet, discharged to the material receiving end, and then fed into the hole through the material feeding end.

2. A concrete structure core drilling quick repairing equipment according to claim 1, characterized in that, The stirring assembly comprises: a stirring middle shaft arranged in the stirring pot body along a long axis direction; a stirring blade fixed on the stirring middle shaft in a predetermined shape; a stirring handle transmissionally connected to one end of the stirring middle shaft and located outside the stirring pot body.

3. A concrete structure core fast repairing equipment according to claim 1, characterized in that, A handle guard is fixed at a designated position of the stirring pot body.

4. A concrete structure core fast repairing equipment according to claim 1, characterized in that, The hand-held stirring pot further comprises: a material opening leakage-proof cover hingedly connected to one end of the stirring pot body and fastened by a nut at the other end; the material opening leakage-proof cover is closed on the inlet and outlet during uniform mixing.

5. A concrete structure core fast repairing equipment according to claim 2, characterized in that, The stirring pot body is a steel ellipsoidal shell, and the stirring blade is a steel structure.

6. A concrete structure core fast repairing equipment according to claim 3, characterized in that, A positioning groove is arranged on the handle guard and located on the same side with the inlet and outlet; A positioning column extending outward by a predetermined length is arranged on the outside of the material receiving end of the injection mold, and the positioning column is matched with the positioning groove.

7. A concrete structure core fast repairing equipment according to claim 3, characterized in that, A rubber handle guard is wrapped on the handle guard.