An adjustable abutment pad anchor bolt hole auxiliary positioning device

By using an adjustable bearing pad anchor bolt hole auxiliary positioning device, the pre-embedded holes of the bearing can be quickly and accurately positioned using sliding components and scale lines. This solves the problems of low construction accuracy and high cost in traditional methods, and improves the efficiency and quality of bridge construction.

CN224314038UActive Publication Date: 2026-06-02CHINA CONSTR SECOND ENG BUREAU LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SECOND ENG BUREAU LTD
Filing Date
2026-03-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In traditional bridge construction, it is difficult to guarantee the positional accuracy of the pre-embedded holes for the bearings, and traditional clamping methods increase construction costs and complexity.

Method used

An adjustable anchor bolt hole positioning device is adopted, which includes a main frame, C-shaped steel, sliding component and positioning anchor. The sliding component and scale line enable quick and accurate adjustment of the sleeve position. Combined with the fixing method of wing nut and positioning anchor, the precise positioning of the anchor bolt hole is ensured.

Benefits of technology

It improved construction efficiency, reduced construction errors, lowered construction costs and complexity, and enhanced project quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides an adjustable auxiliary positioning device for anchor bolt holes in bridge construction technology. It includes a main frame with support feet at the four corners of the bottom. C-shaped steel beams are symmetrically arranged on the left and right sides of the inner side of the main frame. Several first sliding components are movably arranged between two C-shaped steel beams. Each first sliding component includes a sliding plate with first sliders at both ends. The first sliders are slidably positioned in the grooves of the C-shaped steel beams. Several second sliding components are slidably arranged on the sliding plate. A pipe limiting hole extending from the top center of each second sliding component to the bottom is opened. This invention solves the problems of existing technologies requiring the preparation of multiple different types of clamps, increasing construction costs, and complicating the construction and time costs associated with clamp conversion and adjustment.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to an adjustable auxiliary positioning device for anchor bolt holes in bearing pads. Background Technology

[0002] In bridge construction, the construction of bearing pad stones is a crucial step, and the positional accuracy of the pre-embedded holes directly affects the stability and safety of the bridge. Due to the large number of pre-embedded holes in bridge structures, and the fact that the position of each hole must be precise, the construction is quite challenging. Traditional methods typically involve pre-embedding PVC or iron sleeves to form the holes before concrete pouring. However, this method often uses wire ties to bind the pad stone reinforcement, which is not only inefficient but also susceptible to the effects of concrete lateral pressure and vibration during compaction, leading to sleeve displacement and significant hole position errors.

[0003] To address this issue, existing technologies attempt to use fixed-position clamps for fixing. While this method improves the accuracy of the hole positions to some extent, the diverse types of bridge bearings and the special requirements for hole layout in curved sections necessitate the preparation of various types of clamps, which undoubtedly increases construction costs. Furthermore, the conversion and adjustment between different clamps also increases the complexity and time cost of construction. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an adjustable auxiliary positioning device for anchor bolt holes in bearing pads, which solves the aforementioned problems.

[0005] This utility model is implemented as follows:

[0006] An adjustable auxiliary positioning device for anchor bolt holes in a bearing pad includes a main frame. Support feet are provided at the four corners of the bottom of the main frame. C-shaped steels are symmetrically arranged on the left and right sides of the inner side of the main frame. A plurality of first sliding components are movably arranged between two C-shaped steels. Each first sliding component includes a sliding plate. First sliders are provided at both ends of the sliding plate. The first sliders are slidably arranged in the grooves of the C-shaped steels. A plurality of second sliding components are slidably arranged on the sliding plate. A pipe limiting hole extending from the top center of each second sliding component to the bottom is opened.

[0007] In an embodiment of this utility model, a screw is provided at the top center of the first slider, a first groove is provided in the length direction of the top of the C-shaped steel, the screw is slidably disposed in the first groove, and a washer and a wing nut are provided on the screw.

[0008] In an embodiment of this utility model, the top of the C-shaped steel is provided with scale lines along the direction of the first groove.

[0009] In an embodiment of this utility model, the sliding plate includes two first long rods and second long rods of the same size. The first long rod and the second long rod are provided with wing plates near the bottom on opposite sides. Two embedding grooves are symmetrically opened along the middle on the right side of the first slider. The two ends of the first long rod and the second long rod are respectively inserted into the embedding grooves.

[0010] In an embodiment of this utility model, the second sliding component includes a second slider, which consists of an upper sliding plate and a lower protrusion disposed at its bottom. The upper sliding plate is slidably disposed on the two wing plates between the first long rod and the second long rod.

[0011] In an embodiment of this utility model, side slide rails are provided on both sides of the upper slide plate, and side slide grooves are provided on opposite sides of the first long rod and the second long rod, and the side slide rails are slidably disposed in the side slide grooves.

[0012] In an embodiment of this utility model, the top of the wing plate of the second long rod is provided with a plurality of positioning holes in a linearly equal manner, and the top of the upper sliding plate is provided with an arc-shaped groove on the side near the second long rod. The second sliding assembly also includes a positioning anchor, which is inserted from above the arc-shaped groove into one of the positioning holes and fixed with a nut.

[0013] The beneficial effects of this utility model are as follows: By setting the first sliding component and the second sliding component, flexible sliding adjustment in two directions is achieved. This design allows construction personnel to quickly and accurately adjust the position of the PVC sleeve or iron sleeve as needed, thereby greatly improving construction efficiency. The scale lines on the C-shaped steel, the cooperation between the positioning hole and the arc groove, and the fixing method of the wing nut and the positioning anchor jointly ensure the positioning of the anchor bolt hole. This positioning capability reduces construction errors and improves project quality. Attached Figure Description

[0014] 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 of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the overall structure provided for the embodiments of this utility model;

[0016] Figure 2 A partial exploded view of the first sliding component provided for an embodiment of this utility model;

[0017] Figure 3 A partially exploded structural diagram of the second sliding component provided for an embodiment of this utility model;

[0018] Figure 4 A cross-sectional view of the second sliding component provided in an embodiment of this utility model.

[0019] In the diagram: 10. Main frame; 11. Support leg; 20. C-shaped steel; 21. First sliding groove; 30. First sliding assembly; 31. Sliding plate; 3101. First long rod; 3102. Second long rod; 3103. Side sliding groove; 3104. Wing plate; 3105. Positioning hole; 32. First slider; 3201. Embedded groove; 3202. Screw; 3203. Washer; 3204. Wing nut; 40. Second sliding assembly; 41. Second slider; 4101. Upper sliding plate; 41011. Side sliding rail; 41012. Pipe limiting hole; 41013. Arc groove; 4102. Lower protrusion; 42. Positioning anchor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1As shown, this utility model provides an adjustable auxiliary positioning device for anchor bolt holes in bearing pads, including a main frame 10. Support feet 11 are provided at the four corners of the bottom of the main frame 10. C-shaped steels 20 are symmetrically arranged on the left and right sides of the inner side of the main frame 10. Several first sliding components 30 are movably arranged between two C-shaped steels 20. Each first sliding component 30 includes a sliding plate 31. First sliders 32 are provided at both ends of the sliding plate 31. The first sliders 32 are slidably arranged in the grooves of the C-shaped steels 20. Several second sliding components 40 are slidably arranged on the sliding plate 31. A pipe limiting hole 41012 is opened at the top center of the second sliding component 40 and extends to the bottom. The pipe limiting hole 41012 is used to limit and fix PVC sleeves or iron sleeves. The first sliding components 30 and the second sliding components 40 are used to slide in two directions to adjust the specific position, thereby realizing the setting of pre-embedded holes for bearings of different sizes and specifications by the same auxiliary positioning device.

[0023] like Figure 2 As shown, a screw 3202 is provided at the top center of the first slider 32, and a first groove 21 is provided in the length direction of the top of the C-shaped steel 20. The screw 3202 is slidably disposed in the first groove 21. A washer 3203 and a wing nut 3204 are provided on the screw 3202. After sliding to a suitable size, the two ends of the first sliding assembly 30 are fixed by the wing nut 3204.

[0024] As a preferred embodiment, the top of the C-shaped steel 20 is provided with scale lines along the direction of the first sliding groove 21, which further increases the controllability of the adjustment of the first sliding component 30.

[0025] Furthermore, the sliding plate 31 includes two first long rods 3101 and second long rods 3102 of the same size. The first long rods 3101 and second long rods 3102 are provided with wing plates 3104 near the bottom on opposite sides. The right side of the first slider 32 has two symmetrically opened embedding grooves 3201 along the middle. The two ends of the first long rods 3101 and second long rods 3102 are respectively inserted into the embedding grooves 3201.

[0026] like Figure 3-4 As shown, the second sliding assembly 40 includes a second slider 41, which consists of an upper slide plate 4101 and a lower protrusion 4102 disposed at its bottom. The upper slide plate 4101 is slidably disposed on two wing plates 3104 between the first long rod 3101 and the second long rod 3102. Side slide rails 41011 are provided on both sides of the upper slide plate 4101. A side slide groove 3103 is opened on the opposite side of the first long rod 3101 and the second long rod 3102. The side slide rail 41011 is slidably disposed in the side slide groove 3103. Another function of the side slide rail 41011 is to restrict the second slider 41 from sliding in the length direction of the first sliding assembly 30.

[0027] In this embodiment, the top of the wing plate 3104 of the second long rod 3102 is provided with a plurality of positioning holes 3105 in a linearly equal manner. The top of the upper sliding plate 4101 is provided with an arc groove 41013 on the side near the second long rod 3102. The second sliding assembly 40 also includes a positioning anchor 42. The positioning anchor 42 is inserted from above the arc groove 41013 into one of the positioning holes 3105 and fixed with a nut. Combined with the scale lines on the C-shaped steel 20, the precise setting of the PVC sleeve or iron sleeve in the front-back direction and the left-right direction can be achieved.

[0028] Specifically, the working principle of this adjustable bearing pad anchor bolt hole auxiliary positioning device is as follows: In use, a corresponding number of first sliding components 30 are set on the main frame 10, and each first sliding component 30 is provided with several second sliding components 40 (e.g., in this embodiment, ...). Figure 1 As shown, there are two first sliding components 30, and each first sliding component 30 is provided with two second sliding components 40, forming a 4x4 specification. Based on the specifications of the support pad, the positions of the two first sliding components 30 in the front-back direction are first adjusted. After the adjustment is completed, the wing nuts 3204 are used for fixing. Further, the positions of several second sliding components 40 in the left-right direction are adjusted and fixed by positioning anchors 42. This completes the adjustment of the pipe limiting hole 41012 in two directions. Through the above structure, the problems of the existing technology requiring the preparation of multiple different types of clamps, increasing construction costs, and the complexity and time cost of clamp conversion and adjustment are solved.

[0029] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. An adjustable auxiliary positioning device for anchor bolt holes in bearing pads, characterized in that, The main frame (10) is provided with support feet (11) at the four corners of the bottom of the main frame (10). C-shaped steel (20) is symmetrically arranged on the left and right sides of the inner side of the main frame (10). Several first sliding components (30) are movably arranged between the two C-shaped steel (20). The first sliding component (30) includes a sliding plate (31). The two ends of the sliding plate (31) are provided with first sliders (32). The first sliders (32) are slidably arranged in the groove of the C-shaped steel (20). Several second sliding components (40) are slidably arranged on the sliding plate (31). The top center of the second sliding component (40) has a pipe limiting hole (41012) that extends to the bottom.

2. The adjustable bearing pad stone anchor bolt hole auxiliary positioning device according to claim 1, characterized in that, A screw (3202) is provided at the top center of the first slider (32), and a first groove (21) is provided in the top length direction of the C-shaped steel (20). The screw (3202) is slidably disposed in the first groove (21), and a washer (3203) and a wing nut (3204) are provided on the screw (3202).

3. The adjustable bearing pad stone anchor bolt hole auxiliary positioning device according to claim 2, characterized in that, The top of the C-shaped steel (20) is provided with scale lines along the direction of the first groove (21).

4. An adjustable auxiliary positioning device for anchor bolt holes in a bearing pad as described in any one of claims 1 or 2, characterized in that, The sliding plate (31) includes two identical first long rods (3101) and second long rods (3102). The first long rod (3101) and the second long rod (3102) have wing plates (3104) on opposite sides near the bottom. The right side of the first slider (32) has two symmetrically arranged embedding grooves (3201) along the middle. The two ends of the first long rod (3101) and the second long rod (3102) are respectively inserted into the embedding grooves (3201).

5. The adjustable bearing pad stone anchor bolt hole auxiliary positioning device according to claim 4, characterized in that, The second sliding assembly (40) includes a second slider (41), which consists of an upper sliding plate (4101) and a lower protrusion (4102) disposed at its bottom. The upper sliding plate (4101) is slidably disposed on the two wing plates (3104) between the first long rod (3101) and the second long rod (3102).

6. The adjustable bearing pad stone anchor bolt hole auxiliary positioning device according to claim 5, characterized in that, The upper slide plate (4101) is provided with side slide rails (41011) on both sides. The first long rod (3101) and the second long rod (3102) are provided with side slide grooves (3103) on opposite sides. The side slide rails (41011) are slidably disposed in the side slide grooves (3103).

7. The adjustable bearing pad stone anchor bolt hole auxiliary positioning device according to claim 5, characterized in that, The top of the wing plate (3104) of the second long rod (3102) is provided with a plurality of positioning holes (3105) in a linearly equal manner. The top of the upper slide plate (4101) is provided with an arc groove (41013) on the side near the second long rod (3102). The second sliding assembly (40) also includes a positioning anchor (42). The positioning anchor (42) is inserted from above the arc groove (41013) into one of the positioning holes (3105) and fixed with a nut.