A socket type culvert prefabricated cover plate anchor bolt hole positioning device
The plug-in type culvert precast cover plate anchor bolt hole positioning device solves the problem of inaccurate anchor bolt hole positioning, ensures the accuracy of anchor bolt holes and construction quality, and achieves convenient positioning and anti-blocking effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU ROAD & BRIDGE CONSTR GROUP
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, it is difficult to accurately reserve the position and size of anchor bolt holes in precast culvert cover plates, which leads to problems such as anchor bolt misalignment, tilting, and grout blockage, affecting construction quality.
The precast culvert cover plate anchor bolt hole positioning device is adopted, which includes a distance adjustment beam, a top positioning component and a bottom plate rubber plug. By accurately positioning the anchor bolt hole, it prevents concrete slurry from entering and ensures smooth passage of the duct.
It achieves precise positioning of anchor bolt holes, avoids misalignment and blockage, improves construction quality, and has a simple structure, is easy to operate, has a wide range of applications, and is environmentally friendly and cost-effective.
Smart Images

Figure CN224310874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of highway engineering construction equipment, and in particular to a plug-in type culvert precast cover plate anchor bolt hole positioning device. Background Technology
[0002] Precast culvert cover plates typically require pre-drilled anchor bolt holes. To ensure the anchor bolts can pass through smoothly and secure themselves, the position and size of these holes must be precisely pre-drilled. Currently, most cover plate anchor bolt holes are fixed using a construction process that uses steel reinforcement to support PVC plastic pipes. This process often encounters problems such as anchor bolt hole misalignment, tilting, PVC plastic pipe floating during concrete pouring, and concrete slurry blockage. This results in a mismatch between the pre-embedded anchor bolt reinforcement in the cover plate cap and the pre-drilled anchor bolt holes in the cover plate during installation, thus affecting construction quality. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a plug-in type culvert prefabricated cover plate anchor bolt hole positioning device.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A plug-in type culvert precast cover plate anchor bolt hole positioning device includes:
[0006] The distance adjustment beam is detachably fixedly mounted on the side mold at both ends;
[0007] The top positioning component, which can be adjusted to the left and right position, is installed on the distance adjustment beam and connected to the top of the anchor bolt sleeve for fixing the anchor bolt sleeve;
[0008] The base plate rubber plug is inserted into the bottom of the anchor bolt sleeve to prevent concrete slurry from entering the anchor bolt sleeve.
[0009] The distance adjustment beam is mounted on the side mold at both ends by fixing screws.
[0010] The top positioning component includes:
[0011] The small screw is vertically inserted into the rectangular hole set on the distance adjustment beam;
[0012] The fixing nut is fitted onto the upper part of the small screw;
[0013] The connector is located at the bottom of the small screw and can be inserted into the top of the anchor sleeve.
[0014] The beneficial effects of this utility model are:
[0015] 1. This utility model uses the bottom plate rubber plug and the top positioning component to accurately position the anchor bolt hole, effectively solving the problem of misalignment and deviation caused by inaccurate positioning. Moreover, the upper and lower parts are coaxial, closed and firmly fixed to the template, which prevents the grout from entering the anchor bolt sleeve during the concrete pouring process, thereby ensuring that the reserved channel is unobstructed and does not tilt or float under the impact of concrete.
[0016] 2. The top positioning component and the distance adjustment beam of this utility model are connected by bolts to form a plug-in type fixing structure. Each time it is used, it is only necessary to insert this structure into the anchor sleeve and fix it to the fixing screw on the template. It is convenient and quick to install and dismantle, saving time, effort and cost.
[0017] 3. The top positioning component of this utility model can be adjusted in position by adjusting the distance of the crossbeam. It is suitable for fixing anchor bolt hole sleeves in different positions and spacings. It has a wide range of applications, strong practicality, simple processing and manufacturing, can be reused, and has significant environmental protection effects. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the connector in this utility model.
[0020] Figure 3 This is a schematic diagram of the adjustable crossbeam for medium distance in this utility model.
[0021] Figure 4 This is an exploded view of the top positioning component of this utility model.
[0022] In the diagram: 1—Fixing screw; 2—Base plate rubber plug; 3—Anchor bolt sleeve; 4—Plug-in connector; 5—Distance adjustment beam; 6—Small screw; 7—Fixing nut. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0024] like Figures 1 to 4As shown, a plug-in type precast culvert cover plate anchor bolt hole positioning device includes: a distance adjusting beam 5, which is detachably fixedly installed on the side formwork at both ends; a top positioning component, which is adjustable left and right and installed on the distance adjusting beam 5, and connected to the top of the anchor bolt sleeve 3 for fixing the anchor bolt sleeve 3; and a bottom plate rubber plug 2, which is inserted into the bottom of the anchor bolt sleeve 3 to prevent concrete slurry from entering the anchor bolt sleeve 3. The two ends of the distance adjusting beam 5 are respectively installed on the side formwork by fixing screws 1. The top positioning component includes: a small screw 6, which is vertically inserted into a rectangular hole provided on the distance adjusting beam 5; a fixing nut 7, which is fitted onto the upper part of the small screw 6; and a plug-in part 4, which is provided at the bottom of the small screw 6 and can be inserted into the top of the anchor bolt sleeve 3.
[0025] Among them, the distance adjustment beam 5 is made of 10# channel steel, and a rectangular hole with a length of 80cm and a width of 2.6cm is cut in the middle of it.
[0026] Among them, the diameter of the fixing screw 1 is 1cm and the length is 10cm.
[0027] The bottom plate rubber plug is 7cm in diameter and 3cm thick, serving as a lower positioning device.
[0028] The diameter of the anchor bolt sleeve 3 is 7.5cm, and the height is the length reserved for the anchor bolt hole.
[0029] The connector 4 is a circular steel plate with a diameter of 7cm, and a small screw 6 with a length of 10cm and a diameter of 2.5cm is welded and fixed at the center of the steel plate.
[0030] The distance adjustment beam 5 is 1.2m long. A rectangular hole with a length of 80cm and a width of 2.6cm is made in the middle of the beam. A circular hole with a diameter of 1cm is made at the center of the beam 5cm away from both ends. The circular hole passes through the fixing screw 1 and is fixed to the side mold with bolts.
[0031] In use, the distance adjustment beam 5 is first placed on the side mold. The bottom plate rubber plug 2 is fixed to the corresponding position of the bottom plate anchor bolt hole with epoxy resin. The lower end of the anchor bolt sleeve 3 is aligned with the bottom plate rubber plug 2 and inserted. Then, the plug-in 4 is fixedly installed on the distance adjustment beam 5 through the fixing nut 7 and the small screw 6. Finally, the plug-in 4 is aligned and inserted into the top of the anchor bolt sleeve 3. The round holes on both sides of the distance adjustment beam 5 are aligned and the fixing screw 1 is inserted and the bolts are tightened.
[0032] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A device for positioning anchor bolt holes in precast culvert cover plates, characterized in that, include: The distance adjustment beam (5) is detachably fixedly installed on the side mold at both ends; The top positioning component is installed on the distance adjustment beam (5) with adjustable left and right position and is connected to the top of the anchor sleeve (3) for fixing the anchor sleeve (3). The bottom plate rubber plug (2) is inserted into the bottom of the anchor bolt sleeve (3) to prevent concrete slurry from entering the anchor bolt sleeve (3).
2. The anchor bolt hole positioning device for precast culvert cover plates according to claim 1, characterized in that: The distance adjustment beam (5) is installed on the side mold at both ends by fixing screws (1).
3. The anchor bolt hole positioning device for precast culvert cover plates according to claim 1, characterized in that, The top positioning component includes: The small screw (6) is vertically inserted into the rectangular hole set on the distance adjustment beam (5); The fixing nut (7) is installed on the upper part of the small screw (6); The connector (4) is located at the bottom of the small screw (6) and can be inserted into the top of the anchor sleeve (3).