An anchor hole cleaning tool

By designing a hole-cleaning tool that combines a flexible drive shaft and a rigid drive shaft, the problems of difficult and insufficient hole cleaning of anchor bolt holes were solved, enabling efficient and flexible hole cleaning operations and improving grouting quality and equipment installation stability.

CN224358970UActive Publication Date: 2026-06-16CHINA MCC5 GROUP CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA MCC5 GROUP CORP LTD
Filing Date
2025-06-27
Publication Date
2026-06-16

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    Figure CN224358970U_ABST
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Abstract

The utility model relates to the technical field of pouring construction tools, and specifically relates to a foundation bolt hole cleaning tool, which comprises a driver, the output shaft of the driver is matched to a transmission hose, a flexible transmission shaft that rotates synchronously with the output shaft is arranged in the transmission hose; a holding section is arranged at the front end of the transmission hose, the flexible transmission shaft extends to the holding section, a rigid transmission shaft that is matched and connected with the flexible transmission shaft is arranged inside the holding section, the inner end of the rigid transmission shaft is matched and driven with the flexible transmission shaft, and a hole cleaning brush head is matched and connected with the outer end of the rigid transmission shaft. The utility model sets the hole cleaning structure that is convenient to hold and operate, can extend the hole cleaning brush head to multiple areas to be cleaned, improves the convenience and flexibility of hole cleaning operation, reduces the physical consumption of the operator, and improves the hole cleaning effect.
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Description

Technical Field

[0001] This utility model relates to the field of casting construction tools, specifically to a tool for cleaning anchor bolt holes. Background Technology

[0002] In metallurgical industrial projects, various equipment such as filter presses, rotary kilns, high and low temperature fans, and various large and small conveying pumps play a crucial role in the stable operation of the entire production process. During the installation and fixing of these devices, pre-drilled holes are commonly used for secondary grouting to secure the anchor bolts. For large equipment, the depth of the pre-drilled holes is relatively large, typically reaching 1 to 2 meters.

[0003] To create the pre-reserved holes, a non-removable opening formwork is typically used. This formwork is mainly made of a steel reinforcement frame wrapped with wire mesh. Before the secondary grouting of the pre-reserved holes, a crucial preparatory step is to remove the rusted wire mesh and impurities adhering to the concrete surface. This is done to ensure good contact at the concrete construction joint, thereby guaranteeing the quality of subsequent grouting and the stability of equipment installation.

[0004] However, the existing series of related technologies have many problems in practical applications.

[0005] The difficulty of cleaning the holes lies in their relatively small cross-sectional dimensions and considerable depth, making the cleaning process extremely inconvenient. Operators struggle to use conventional tools to penetrate deep into the holes and thoroughly remove rusted wire mesh and impurities from the concrete surface, resulting in incomplete cleaning.

[0006] Grouting quality is affected: If rusted wire mesh and impurities are not effectively cleaned, they will affect the contact effect at the concrete construction joint. As a result, during secondary grouting, a good bond cannot be formed between the old and new concrete, which can easily lead to incomplete grouting, gaps in the pores, and other problems. This reduces the reliability of the anchor bolt fixing, affects the installation quality and operational stability of the equipment, and may pose safety hazards to subsequent metallurgical industrial production. For example, the equipment may experience excessive vibration or displacement during operation, affecting production efficiency and product quality, and may even lead to equipment damage and production accidents.

[0007] Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the current technology. Utility Model Content

[0008] To overcome at least one of the defects mentioned above, this utility model proposes a tool for cleaning anchor bolt holes. By setting a flexible hose to transmit torque, the cleaning brush head can reach each hole to be cleaned, and the operation is simpler and more flexible, improving the cleaning efficiency and quality.

[0009] To achieve the above objectives, the hole-cleaning tool disclosed in this utility model can adopt the following technical solution:

[0010] A tool for cleaning anchor bolt holes includes a driver, the output shaft of which is connected to a flexible transmission hose, and a flexible transmission shaft that rotates synchronously with the output shaft is disposed inside the flexible transmission hose; a holding section is provided at the front end of the flexible transmission hose, the flexible transmission shaft extends to the holding section, a rigid transmission shaft is disposed inside the holding section and connected to the flexible transmission shaft, the inner end of the rigid transmission shaft is connected to the flexible transmission shaft for transmission, and a cleaning brush head is connected to the outer end of the rigid transmission shaft.

[0011] The aforementioned hole-cleaning tool uses a driver to rotate a flexible drive shaft, transmitting torque to a rigid drive shaft, which then drives the hole-cleaning brush head. In practical use, the operator only needs to hold the handle with both hands to move the hole-cleaning brush head to the area to be cleaned. The operation is simple and quick, flexible and convenient, improving hole-cleaning efficiency and significantly enhancing the cleaning effect.

[0012] Furthermore, the mating structure between the rigid drive shaft and the cleaning brush head can adopt various schemes, and its structure is not limited to one. Here, we optimize and propose one feasible option: the outer end of the rigid drive shaft is provided with a connecting bushing, and the cleaning brush head mates with the connecting bushing. When the above scheme is adopted, the cleaning brush head includes a brush shaft that mates with the connecting bushing.

[0013] Furthermore, the connecting bushing includes a threaded sleeve, and the cleaning brush head is fixed to the connecting bushing by a threaded engagement.

[0014] Furthermore, the cleaning brush head can take various forms, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the cleaning brush head includes a central shaft, the connecting section of the central shaft is connected to a rigid transmission shaft, and the cleaning section of the central shaft is provided with brush bristles. When adopting the above solution, the bristle shell is made of metal wire.

[0015] Furthermore, the gripping section can be constructed in various forms, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the gripping section includes a rigid cylinder, and the rigid drive shaft is coaxially disposed within the rigid cylinder and rotates therein. When adopting the above scheme, the gripping section can be a circular cylinder.

[0016] Furthermore, to ensure better rotation of the rigid drive shaft, the rigid cylinder and the rigid drive shaft are coupled via bearings. When employing the above solution, the bearing can be a ball bearing.

[0017] Furthermore, to facilitate the coordinated transmission between the flexible and rigid drive shafts, the rigid and flexible drive shafts are connected via a cross hinge. When this scheme is adopted, as the cleaning brush head moves towards multiple positions and angles, the rigid drive shaft and the cleaning brush head move synchronously, while the flexible drive shaft transmits power torque to the rigid drive shaft via the cross hinge.

[0018] Furthermore, to facilitate operation and reduce overall weight, the structure of the rigid drive shaft can be adjusted. Here, we propose several feasible options: the rigid drive shaft includes a hollow shaft, and / or the rigid drive shaft has several weight-reducing holes. When the above solution is adopted, the weight of the rigid drive shaft is significantly reduced, making it easier for the operator to hold and operate.

[0019] Furthermore, the grip section is equipped with heat-insulating and shock-absorbing components on its exterior. This design prevents heat generated on the rigid drive shaft from being transferred to the surface of the grip section, thus avoiding discomfort for the operator.

[0020] Furthermore, the heat insulation and shock absorption component includes a flexible heat insulation sleeve.

[0021] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include:

[0022] This invention features a cleaning structure that is easy to hold and operate, allowing the cleaning brush head to be extended to multiple areas to be cleaned. This improves the convenience and flexibility of the cleaning operation, reduces the physical exertion of the operator, and enhances the cleaning effect. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the components of a hole cleaning tool.

[0025] In the above attached figures, the meanings of each label are as follows:

[0026] 1. Driver; 2. Drive hose; 3. Holding section; 4. Rigid drive shaft; 5. Flexible heat insulation sleeve; 6. Bearing; 7. Connecting bushing; 8. Hole cleaning brush head; 801. Connecting section; 802. Hole cleaning section; 803. Brush bristles. Detailed Implementation

[0027] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.

[0028] In view of the fact that existing hole cleaning equipment has a large structure, making it difficult to clean all positions, requiring a lot of physical strength from operators, and having poor hole cleaning effect, the following embodiments are optimized and overcome the defects of the existing technology.

[0029] Example

[0030] like Figure 1 As shown, this embodiment provides a tool for cleaning anchor bolt holes, including a driver 1. The output shaft of the driver 1 is connected to a transmission hose 2. A flexible transmission shaft that rotates synchronously with the output shaft is provided inside the transmission hose 2. A holding section 3 is provided at the front end of the transmission hose 2. The flexible transmission shaft extends to the holding section 3. A rigid transmission shaft 4 that is connected to the flexible transmission shaft is provided inside the holding section 3. The inner end of the rigid transmission shaft 4 is connected to the flexible transmission shaft for transmission. A hole cleaning brush head 8 is connected to the outer end of the rigid transmission shaft 4.

[0031] Preferably, in this embodiment, the driver 1 can be a motor.

[0032] The hole cleaning tool disclosed in this embodiment uses a driver 1 to rotate a flexible transmission shaft, transmitting torque to a rigid transmission shaft 4, which in turn drives the hole cleaning brush head 8. In practical use, the operator only needs to hold the grip section 3 with both hands to move the hole cleaning brush head 8 to the area to be cleaned. The operation is simple and quick, flexible and convenient, improving hole cleaning efficiency and significantly enhancing the hole cleaning effect.

[0033] The mating structure between the rigid drive shaft 4 and the cleaning brush head 8 can adopt various schemes, and its structure is not limited to one. This embodiment optimizes and adopts one feasible option: the outer end of the rigid drive shaft 4 is provided with a connecting bushing 7, and the cleaning brush head 8 mates with the connecting bushing 7. When the above scheme is adopted, the cleaning brush head 8 includes a brush shaft that mates with the connecting bushing 7.

[0034] In this embodiment, the connecting bushing 7 includes a threaded sleeve, and the cleaning brush head is fixed to the connecting bushing 7 by threaded engagement.

[0035] The cleaning brush head 8 can take various forms, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the cleaning brush head 8 includes a central shaft, the connecting section 801 of the central shaft is connected to the rigid transmission shaft 4, and the cleaning section 802 of the central shaft is provided with brush bristles 803. When adopting the above solution, the bristle 803 shell is made of metal wire.

[0036] The gripping section 3 can be constructed in various forms, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the gripping section 3 includes a rigid cylinder, and the rigid transmission shaft 4 is coaxially disposed within the rigid cylinder and rotates therein. When adopting the above scheme, the gripping section 3 can be a circular cylinder.

[0037] To ensure better rotation of the rigid drive shaft 4, the rigid cylinder and the rigid drive shaft 4 are coupled via a bearing 6. When using the above solution, the bearing 6 can be a ball bearing 6.

[0038] To facilitate the coordinated transmission between the flexible drive shaft and the rigid drive shaft 4, the rigid drive shaft 4 and the flexible drive shaft are connected by a cross hinge. When the above scheme is adopted, as the cleaning brush head 8 moves towards multiple positions and angles, the rigid drive shaft 4 and the cleaning brush head 8 maintain synchronous movement, while the flexible drive shaft transmits power torque to the rigid drive shaft 4 through the cross hinge.

[0039] To facilitate operation and reduce overall weight, the structure of the rigid drive shaft 4 can be adjusted. This embodiment optimizes the design and adopts one feasible option: the rigid drive shaft 4 includes a hollow shaft, and / or the rigid drive shaft 4 is provided with several weight-reducing holes. With the above solution, the weight of the rigid drive shaft 4 is significantly reduced, making it easier for the operator to hold and operate.

[0040] In this embodiment, a heat-insulating and shock-absorbing component is provided on the outside of the grip section 3. Using this solution, heat generated on the rigid drive shaft 4 can be prevented from being transferred to the surface of the grip section 3, thus avoiding discomfort to the operator.

[0041] Preferably, the heat insulation and shock absorption component includes a flexible heat insulation sleeve 5.

[0042] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be defined in the claims.

Claims

1. A tool for cleaning anchor bolt holes, characterized in that: Includes a driver (1), the output shaft of the driver (1) is connected to a transmission hose (2), and a flexible transmission shaft that rotates synchronously with the output shaft is provided inside the transmission hose (2); a holding section (3) is provided at the front end of the transmission hose (2), the flexible transmission shaft extends to the holding section (3), a rigid transmission shaft (4) is provided inside the holding section (3) and connected to the flexible transmission shaft, the inner end of the rigid transmission shaft (4) is connected to the flexible transmission shaft for transmission, and a cleaning brush head (8) is connected to the outer end of the rigid transmission shaft (4).

2. The anchor bolt hole cleaning tool according to claim 1, characterized in that: The outer end of the rigid transmission shaft (4) is provided with a connecting bushing (7), and the cleaning brush head (8) cooperates with the connecting bushing (7).

3. The anchor bolt hole cleaning tool according to claim 2, characterized in that: The connecting bushing (7) includes a threaded sleeve, and the cleaning brush head (8) is fixed to the connecting bushing (7) by thread engagement.

4. The anchor bolt hole cleaning tool according to claim 1, characterized in that: The cleaning brush head (8) includes a central shaft, the connecting section (801) of the central shaft is connected to the rigid transmission shaft (4), and the cleaning section (802) of the central shaft is provided with bristles (803).

5. The anchor bolt hole cleaning tool according to claim 1, characterized in that: The holding section (3) includes a rigid cylinder, and the rigid transmission shaft (4) is coaxially disposed in the rigid cylinder and rotates.

6. The anchor bolt hole cleaning tool according to claim 5, characterized in that: The rigid cylinder and the rigid transmission shaft (4) are connected by bearings (6).

7. The anchor bolt hole cleaning tool according to claim 1, characterized in that: The rigid drive shaft (4) and the flexible drive shaft are connected by a cross hinge.

8. The anchor bolt hole cleaning tool according to claim 1, characterized in that: The rigid transmission shaft (4) includes a hollow shaft, and / or the rigid transmission shaft (4) is provided with a plurality of weight-reducing holes.

9. The anchor bolt hole cleaning tool according to claim 1, characterized in that: The grip section (3) is provided with heat insulation and shock absorption components on the outside.

10. The anchor bolt hole cleaning tool according to claim 9, characterized in that: The heat insulation and shock absorption components include a flexible heat insulation sleeve (5).