A short column steel structure embedded bolt positioning support

The modularly designed short column steel structure pre-embedded bolt positioning bracket solves the problems of material waste, low efficiency and poor positioning accuracy of traditional welding support methods, and achieves efficient and accurate pre-embedded bolt positioning and improved construction efficiency.

CN224379439UActive Publication Date: 2026-06-19CHINA CONSTR FOURTH ENG DIV CORP LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR FOURTH ENG DIV CORP LTD
Filing Date
2025-05-27
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional welded steel bar support methods for positioning short columns with embedded bolts suffer from problems such as material waste, low construction efficiency, difficulty in ensuring positioning accuracy, and high labor intensity.

Method used

The modularly designed short column steel structure pre-embedded bolt positioning bracket includes a first horizontal frame, a second horizontal frame, a limiting baffle, a vertical frame, pin holes, pin rods, and an adjustment mechanism. Through the synergistic effect of these components, the pre-embedded bolts can be precisely positioned and their height adjusted, ensuring stability and reusability during construction.

Benefits of technology

It improves construction efficiency, reduces material waste, lowers labor costs, ensures positioning accuracy, conforms to the concept of green construction, and adapts to the needs of different construction scenarios.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224379439U_ABST
    Figure CN224379439U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of short column steel structure pre-buried bolt positioning support, including pre-buried bolt;For supporting the first horizontal frame and second horizontal frame of pre-buried bolt, setting on the limiting baffle of second horizontal frame, equidistant interval interval arrangement setting first vertical frame in the bottom of second horizontal frame, with the second vertical frame of first vertical frame connection, pin hole formed on first vertical frame and second vertical frame, pin rod is set in pin hole.The utility model overall structure adopts modularization design, installation is simple and fast, greatly improves construction efficiency, reduces the material waste and artificial cost brought by traditional welding support mode, and all components can be reused, both reduce construction cost, and comply with green construction concept, effectively solve the technical problems, such as low construction efficiency, inconvenient adjustment, poor positioning accuracy of traditional pre-buried bolt positioning support.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a positioning bracket for pre-embedded bolts in short column steel structures. Background Technology

[0002] In steel structure engineering, the positioning accuracy of the embedded bolts in short columns directly affects the installation quality of the subsequent steel structure. Traditionally, embedded bolts are fixed using welded steel reinforcement supports, i.e., a support structure is formed by welding steel bars to maintain the position and elevation of the bolts. However, this traditional method has the following drawbacks:

[0003] Material waste: Welding steel reinforcement supports requires a large amount of additional steel bars, which not only increases material costs but also wastes resources; Low construction efficiency: Steel reinforcement supports need to be welded on-site, which is a complex process and slows down the construction speed, affecting the overall project progress; Difficulty in ensuring positioning accuracy: The welding process is prone to heat deformation, which can cause the pre-embedded bolts to shift, affecting the subsequent installation accuracy; High labor intensity: Welding operations require high technical skills from workers and are inconvenient to operate when working at heights or in narrow spaces, posing safety hazards.

[0004] Therefore, there is an urgent need for a pre-embedded bolt positioning bracket that is simple in structure, easy to install, and reusable, in order to reduce material consumption, improve construction efficiency, and ensure positioning accuracy. Utility Model Content

[0005] This utility model provides a pre-embedded bolt positioning bracket for short column steel structures, which can effectively solve the above problems.

[0006] This utility model is implemented as follows:

[0007] A short column steel structure pre-embedded bolt positioning bracket, including

[0008] Pre-embedded bolts;

[0009] A first horizontal frame and a second horizontal frame for supporting the pre-embedded bolts, a limiting baffle set on the second horizontal frame, a first vertical frame arranged at equal intervals at the bottom of the second horizontal frame, a second vertical frame connected to the first vertical frame, pin holes formed on the first vertical frame and the second vertical frame, and a pin rod set in the pin hole;

[0010] Positioning steel plate, used to restrict the pre-embedded bolts;

[0011] An adjustment mechanism is used to adjust the support height of the first vertical frame and the positioning steel plate.

[0012] The beneficial effects of this utility model are:

[0013] (1) This utility model ensures the accurate and reliable installation position of the pre-embedded bolts by the coordinated support of the first and second transverse frames and the precise positioning of the limiting baffle. The adjustable connection structure of the first and second vertical frames, combined with the quick locking function of the pin hole and pin rod, realizes the flexible adjustment and stable fixation of the support height. At the same time, the setting of the adjustment mechanism allows the support height of the first vertical frame and the positioning steel plate to be precisely controlled, thereby adapting to the needs of different construction scenarios. The overall structure adopts a modular design, which is easy and quick to install, greatly improves the construction efficiency, reduces the material waste and labor costs caused by the traditional welding support method, and all components can be reused, which not only reduces the construction cost, but also conforms to the concept of green construction, effectively solving the technical problems of low construction efficiency, inconvenient adjustment and poor positioning accuracy of traditional pre-embedded bolt positioning brackets. 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 This is the front view of Embodiment 1.

[0016] Figure 2 This is a schematic diagram of the unfolded form of Example 1.

[0017] Figure 3 This is the front view of Embodiment 2.

[0018] Figure 4 This is a schematic diagram of the adjustment mechanism in Embodiment 2.

[0019] Explanation of icon numbers:

[0020] 10. Embedded bolts; 20. First horizontal frame; 30. Second horizontal frame; 40. Limiting baffle; 50. First vertical frame; 60. Second vertical frame;

[0021] 70. Pin hole; 80. Pin rod;

[0022] 90. Positioning steel plate; 900. Positioning hole;

[0023] 110. Adjustment mechanism; 1100. First track; 11000. Slide rail; 11002. First slider; 11004. First adjustment frame; 11006. Second adjustment frame; 11008. First bolt; 1102. Second track; 11020. Second slider; 11022. Insertion top plate; 11024. Outer expansion plate; 1104. Buffer plate; 11040. Buffer groove; 11042. Second bolt; 11044. Diagonal bar; 11046. Shaft; 1106. Upper support plate; 11060. Insertion groove; 11062. Positioning post; 11064. Groove; 11066. Movable pin. Detailed Implementation

[0024] 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, not all, of the embodiments of this utility model. 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. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0025] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Example 1

[0027] Reference Figure 1-2 As shown, a short column steel structure pre-embedded bolt positioning bracket includes...

[0028] 10 pre-embedded bolts;

[0029] A first transverse frame 20 and a second transverse frame 30 are used to support the pre-embedded bolts 10, and a limiting baffle 40 is provided on the second transverse frame 30. Furthermore, an anti-slip pad can be attached to the inner side of the limiting baffle 40 to prevent the pre-embedded bolts 10 from directly colliding with metal and causing damage to the threads.

[0030] A first vertical frame 50 is arranged at equal intervals at the bottom of the second horizontal frame 30, a second vertical frame 60 is connected to the first vertical frame 50, pin holes 70 are formed on the first vertical frame 50 and the second vertical frame 60, and pins 80 are set in the pin holes 70.

[0031] A positioning steel plate 90 is used to limit the pre-embedded bolts 10; the positioning steel plate 90 is provided with a number of positioning holes 900 for fixing the pre-embedded bolts 10. Furthermore, the positioning steel plate 90 can be designed in sections, with each section having positioning holes 900 of different diameters, and can be spliced ​​together with bolts to fit pre-embedded bolts 10 of different diameters.

[0032] Specifically, a lifting ring (not shown in the figure) is welded to the top of the second horizontal frame 30 to facilitate the overall hoisting and positioning by the tower crane.

[0033] The pre-embedded bolts 10 are fixed in position through the positioning holes 900 on the positioning steel plate 90. The first horizontal frame 20 and the second horizontal frame 30 provide horizontal support, and the limiting baffle 40 prevents the bolts from shifting. The first vertical frame 50 and the second vertical frame 60 are quickly assembled and height-adjusted through the pin holes 70 and the pin rods 80, forming a stable three-dimensional support system. This ensures that the pre-embedded bolts remain accurately positioned during concrete pouring. After construction, the system can be disassembled and reused, improving construction efficiency and reducing material waste.

[0034] Example 2

[0035] The difference from Embodiment 1 is that the adjustment mechanism 110 is used to adjust the support height of the first vertical frame 50 and the positioning steel plate 90; the adjustment mechanism 110 includes a first track 1100 and a second track 1102, a slide rail 11000 formed on the first track 1100, a first slider 11002 slidably disposed on the slide rail 11002, a first adjustment frame 11004 disposed on the top of the first slider 11002, a second adjustment frame 11006 disposed on the bottom of the second track 1102, and a first bolt 11008 disposed between the first adjustment frame 11004 and the second adjustment frame 11006.

[0036] Specifically, both the second track 1102 and the first track 1100 have millimeter-level scale lines laser-engraved on their sides, which, together with the indicator arrows on the slider, enable precise height adjustment.

[0037] The second track 1102 is provided with a second slider 11020 at the top, a plug-in top plate 11022 is provided at the top of the second slider 11020, and an outer expansion plate 11024 is provided on the outer periphery of one end of the plug-in top plate 11022; a rubber pad is provided on the top of the outer expansion plate 11024.

[0038] Buffer plates 1104 are slidably provided at both ends of the first track 1100, buffer grooves 11040 are symmetrically formed on the buffer plates 1104, a second bolt 11042 is provided in the buffer groove 11040, an inclined rod 11044 is movably provided on the top of the buffer plate 1104, and a shaft 11046 is provided at one end of the inclined rod 11044.

[0039] Among them, the diagonal bar 11046 is a telescopic bar.

[0040] Specifically, the diameter of the buffer groove 11040 is larger than the outer diameter of the second bolt 11042, and an elastic pad is provided inside the buffer groove 11040.

[0041] A top plate 11022 is connected to an upper support plate 1106. A symmetrical insertion groove 11060 is formed on the upper support plate 1106. Positioning posts 11062 are symmetrically arranged at both ends of the upper support plate 1106. A slot 11064 is formed at one end of each positioning post 11062. A movable pin 11066 is movably disposed inside the slot 11064. A spring (not shown in the figure) is also provided inside the slot 11064. The movable pin 11066 is connected to the spring, allowing it to move back and forth. One end of the first vertical frame 50 has a pinhole (not shown in the figure) for insertion with the movable pin 11066. This allows the movable pin 11066 to be inserted into the pinhole, thereby fixing the first vertical frame 50 and the upper support plate 1106. Disassembly is achieved by simply pressing the movable pin 11066.

[0042] The pre-embedded bolt 10 is fixed in position through the positioning hole 900 on the positioning steel plate 90, and its height is adjusted through the sliding cooperation of the first track 1100 and the second track 1102. The first slider 11002 moves along the slide 11000, driving the first adjustment frame 11004 and the second adjustment frame 11006 to fix their relative positions through the first bolt 11008. The second slider 11020 drives the plug-in top plate 11022 and the outer expansion plate 11024 to make fine adjustments, and the rubber pad enhances stability. The buffer plate 1104 absorbs vibration through the elastic pad in the buffer groove 11040 and the second bolt 11042, and the diagonal bar 11044 and the shaft 11046 provide auxiliary support. The upper support plate 1106 is connected to the positioning column 11062 through the plug-in groove 11060, and the movable pin 11066 is plugged and locked with the pin of the first vertical frame 50 under the action of the spring, realizing quick disassembly and precise positioning, and ensuring that the pre-embedded bolt 10 remains stable and adjustable during construction.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A short column steel structure pre-embedded bolt positioning bracket, characterized in that, include Embedded bolts (10); A first horizontal frame (20) and a second horizontal frame (30) for supporting the pre-embedded bolts (10), a limiting baffle (40) provided on the second horizontal frame (30), a first vertical frame (50) arranged at equal intervals at the bottom of the second horizontal frame (30), a second vertical frame (60) connected to the first vertical frame (50), pin holes (70) formed on the first vertical frame (50) and the second vertical frame (60), and a pin (80) provided in the pin holes (70); Positioning steel plate (90) is used to limit the pre-embedded bolt (10); Adjustment mechanism (110) is used to adjust the support height of the first vertical frame (50) and the positioning steel plate (90).

2. The short column steel structure pre-embedded bolt positioning bracket according to claim 1, characterized in that, The positioning steel plate (90) is provided with a plurality of positioning holes (900) for fixing the pre-embedded bolts (10).

3. The short column steel structure pre-embedded bolt positioning bracket according to claim 1, characterized in that, The adjustment mechanism (110) includes a first track (1100) and a second track (1102), a slide (11000) formed on the first track (1100), a first slider (11002) slidably disposed on the slide (11000), a first adjustment frame (11004) disposed on the top of the first slider (11002), a second adjustment frame (11006) disposed on the bottom of the second track (1102), and a first bolt (11008) disposed between the first adjustment frame (11004) and the second adjustment frame (11006).

4. The short column steel structure pre-embedded bolt positioning bracket according to claim 3, characterized in that, The second track (1102) is provided with a second slider (11020) at the top, a plug-in top plate (11022) is provided at the top of the second slider (11020), and an outer expansion plate (11024) is provided on the outer periphery of one end of the plug-in top plate (11022).

5. A short column steel structure pre-embedded bolt positioning bracket according to claim 3, characterized in that, The first track (1100) has buffer plates (1104) slidably arranged at both ends, buffer grooves (11040) symmetrically formed on the buffer plates (1104), a second bolt (11042) arranged in the buffer grooves (11040), a diagonal rod (11044) movably arranged on the top of the buffer plate (1104), and a shaft (11046) arranged at one end of the diagonal rod (11044).

6. A short column steel structure pre-embedded bolt positioning bracket according to claim 4, characterized in that, The top plate (11022) is connected to an upper support plate (1106), with symmetrically formed insertion slots (11060) on the upper support plate (1106), symmetrically arranged positioning posts (11062) at both ends of the upper support plate (1106), a slot (11064) formed at one end of the positioning post (11062), and a movable pin (11066) movably arranged inside the slot (11064).

7. A short column steel structure pre-embedded bolt positioning bracket according to claim 6, characterized in that, A spring is also provided inside the slot (11064), and the movable pin (11066) is connected to the spring, so that the movable pin (11066) can move back and forth.

8. A short column steel structure pre-embedded bolt positioning bracket according to claim 6, characterized in that, One end of the first vertical frame (50) is formed with a pin opening for insertion with the movable pin (11066).

9. A short column steel structure pre-embedded bolt positioning bracket according to claim 4, characterized in that, A rubber pad is provided on the top of the outer expansion plate (11024).

10. A short column steel structure pre-embedded bolt positioning bracket according to claim 5, characterized in that, The diameter of the buffer groove (11040) is larger than the outer diameter of the second bolt (11042), and an elastic pad is provided inside the buffer groove (11040).