A pre-bolt positioning device
By using guide rods and sleeves that slide together to support the frame structure, combined with the support frame of the scale lines, the problem of inaccurate positioning of pre-embedded bolts is solved, achieving efficient and precise positioning of pre-embedded bolts and improving construction quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC TIANGONG GROUP
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, the positioning and fixing process of pre-embedded bolts is prone to tipping over and misalignment, resulting in low construction efficiency and potential quality problems, which affect the subsequent installation of steel structures.
The system adopts a support frame structure, including the main support body, positioning plate and clamps. Precise positioning is achieved through the sliding connection of guide rods and sleeves, combined with scale lines, to prevent the pre-embedded bolts from tipping over or shifting during construction.
It improves the positioning efficiency and accuracy of pre-embedded bolts, ensures construction quality, simplifies the installation and disassembly process, and reduces subsequent repair costs.
Smart Images

Figure CN224300476U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, and in particular relates to a pre-embedded bolt positioning device. Background Technology
[0002] In existing technologies, embedded bolts are typically positioned using string lines and measuring tapes, and then fixed by welding. However, welding can easily cause the embedded bolts to tip over, leading to misalignment and potential quality issues. Repeated adjustments result in low construction efficiency, affecting the quality and progress of subsequent steel structure installation. Therefore, there are technical problems related to the positioning and fixing of embedded bolts, including the risk of tipping over and misalignment, which impacts the efficiency and quality of bolt positioning. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a pre-embedded bolt positioning device, which is particularly suitable for preventing pre-embedded bolts from tilting or shifting due to external factors during construction, thereby improving construction efficiency and quality.
[0004] The technical solution adopted by this utility model is: a pre-embedded bolt positioning device, including a support frame, the support frame including a support body, a positioning plate that can be connected to the pre-embedded bolt, and a clamp for fixing, the clamp being slidably connected to the support body, and the positioning plate being slidably connected to the support body.
[0005] Furthermore, the main body of the bracket includes two guide rods arranged opposite to each other, and a bolt positioning hole is opened through the positioning plate. The two sides of the positioning plate have sleeves that slide with the corresponding guide rods.
[0006] Furthermore, the fixture includes two sleeves and a fixing element. The two sleeves are slidably connected to the corresponding guide rods, and both sleeves are connected to the fixing element, which can be secured to the edge of the template.
[0007] Furthermore, the main body of the support also includes an anti-disengagement device, and two guide rods are respectively connected to the anti-disengagement device for closure.
[0008] Furthermore, it also includes a number of matching connection structures, with multiple support frames that are slidably connected to each other through corresponding connection structures.
[0009] Furthermore, the connection structure includes at least one connector, which includes two connecting tubes that are perpendicularly connected to each other, and each connecting tube is slidably connected to a corresponding support body.
[0010] Furthermore, both the main body of the bracket and the positioning plate are equipped with scales for positioning.
[0011] The advantages and positive effects of this utility model are as follows: due to the adoption of the above technical solution, the pre-embedded bolts can be quickly positioned, and the positioning plate can also prevent the pre-embedded bolts from tilting or shifting during the fixing process; it has the advantages of simple structure, convenient installation and disassembly, improved positioning efficiency and positioning accuracy of pre-embedded bolts, and improved construction quality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0013] Figure 2 This is an enlarged schematic diagram of the scale in one embodiment of this utility model;
[0014] Figure 3 This is an enlarged schematic diagram of a partial structure in one embodiment of this utility model;
[0015] In the picture:
[0016] 1. Positioning plate 2. Guide rod 3. Sleeve
[0017] 4. Fasteners 5. Anti-detachment devices 6. Connecting pipes
[0018] 7. Nut; 11. Bolt positioning hole; 12. Sleeve part Detailed Implementation
[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the utility model, and not all embodiments.
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.
[0021] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation", "connection", and "fixing" should be interpreted broadly, and can refer to direct connection, installation or fixing, or indirect connection, installation or fixing, and the present invention does not impose any limitation in this regard.
[0022] like Figures 1 to 3 As shown in the schematic diagram of an embodiment of the pre-embedded bolt positioning device of the present invention, it includes a support frame, the support frame including a bracket body, a positioning plate 1 that can be connected to the pre-embedded bolt, and a clamp for fixing. The clamp is slidably connected to the bracket body, and the positioning plate 1 is slidably connected to the bracket body.
[0023] In this embodiment, the main body of the bracket includes two guide rods 2 arranged relatively parallel to each other. A bolt positioning hole 11 is formed through the positioning plate 1. The positioning plate 1 has sleeve portions 12 on both sides that slide with the corresponding guide rods 2. The sleeve portions 12 can match the cross section of the corresponding guide rods 2. The positioning plate 1 is a bent steel plate with a hole in the middle to form the bolt positioning hole 11 and the two side edges are bent to form tubular sleeve portions 12. The sleeve portions 12 can be sleeved on the outside of the corresponding guide rods 2. The guide rods 2 can be made of steel bars.
[0024] In this embodiment, the clamp includes two sleeves 3 and a fixing member 4. The two sleeves 3 are slidably connected to the corresponding guide rods 2, and both sleeves 3 are connected to the fixing member 4. The fixing member 4 is used to secure the clamp to the edge of the template. Preferably, the fixing member 4 is an inverted U-shaped clamp, the top of which is connected to the two corresponding sleeves 3, and the opening faces downward to form a template clamping space.
[0025] In this embodiment, the support body further includes anti-detachment stops 5, and the two guide rods 2 are respectively connected to the anti-detachment stops 5 to form an end-closed structure. Preferably, each support body includes two anti-detachment stops 5, and the two ends of each anti-detachment stop 5 are respectively connected to the same side ends of the two guide rods 2, and the two ends of each guide rod 2 are connected to a corresponding anti-detachment stop 5 to form a closed rectangular frame. Each support frame includes two clamps to fix the two ends of the guide rods 2 respectively. The anti-detachment stops 5 can better prevent the clamps from slipping during sliding adjustment. A positioning plate 1 is disposed between the two clamps.
[0026] When multiple support frames are used in combination, the support frames can form any of the following layouts: relatively parallel, orthogonal, or connected as polygonal adjustable frames.
[0027] The pre-embedded bolt positioning device also includes a number of matching connection structures, and each support frame is slidably connected to the others through the corresponding connection structures.
[0028] When there are three or more support frames, two of them can be set parallel to each other and orthogonal to the remaining support frames, and the connection structure is set at the orthogonal intersection node.
[0029] In this embodiment, there are four support frames, which are connected to form an adjustable rectangular support frame.
[0030] In this embodiment, the connection structure includes at least one connector, and the connector includes two mutually perpendicularly connected connecting pipes 6. Each connecting pipe 6 is slidably connected to the corresponding support body. Specifically, the connecting pipe 6 is slidably connected to the corresponding guide rod 2. In this embodiment, the two guide rods 2 connected by the connector can be adjusted in four directions, making the adjustment flexible and convenient. Each connection structure includes three connectors, which form a stable planar structure for the corresponding two support frames through three-point positioning, avoiding torsional deformation during the use of the structure, improving the connection strength, better resisting the impact of subsequent concrete pouring, ensuring the accurate positioning and fixing stability of the embedded bolts, and preventing the embedded bolts from tilting or shifting during the fixing process; the three connectors also ensure the smoothness of sliding adjustment and ensure construction efficiency.
[0031] In one embodiment, the support body is provided with scale lines to facilitate the positioning and adjustment of the pre-embedded bolts; in this embodiment, the positioning plate 1 is also provided with scale lines to better improve the positioning accuracy and form a double-precise positioning system. Preferably, the scale lines on the support body are provided on the guide rod 2, the guide rod 2 has a zero scale in the middle and the scale lines are set to increase in the direction of extension from the middle to both ends.
[0032] The construction method of this utility model includes the following steps:
[0033] Place the main body of the support frame above the template and secure it with clamps. Install the pre-embedded bolts on the positioning plate 1 and adjust the positioning plate 1 to the target position.
[0034] The specific construction process of this embodiment is as follows:
[0035] First, select the number and arrangement of the support frames according to the construction requirements. Assemble the appropriate number of support frames through the corresponding connection structure. Finally, connect the two guide rods 2 of each support body in the same direction through the anti-slip stop 5 to form a closed rectangle to prevent the clamp, connection structure and positioning plate 1 from slipping.
[0036] The cross lines for the pre-embedded bolts to be installed on the foundation are determined using a total station and marked on the template.
[0037] Adjust the relative positions of multiple support bodies according to the actual template spacing and pre-embedded bolt positioning requirements, aligning the zero mark on the guide rod 2 with the pre-embedded bolt positioning center line marked on the template. Slide the clamps on the support bodies to secure the fixing parts 4 to the corresponding top edge of the template. Adjust the position of the positioning plate 1 along the guide rod 2 according to the pre-embedded bolt positioning requirements, adjusting the hole spacing of adjacent bolt positioning holes 11. Insert the pre-embedded bolts into the bolt positioning holes 11, and place the nut 7 above the positioning plate 1, connecting it with the threaded engagement on the surface of the pre-embedded bolt. The nut 7 not only fixes the pre-embedded bolt to the positioning plate 1 but also fixes the length of the pre-embedded bolt extending beyond the positioning plate 1. Use a level to check the length of the pre-embedded bolt extending beyond the positioning plate 1. If the extension length does not meet the requirements, adjust the corresponding nut 7 to make the length of the pre-embedded bolt extending beyond the positioning plate 1 meet the design requirements.
[0038] After the required pre-embedded bolts are adjusted, fix the pre-embedded bolts, pour concrete, and disassemble the pre-embedded bolt positioning device for reuse.
[0039] This invention can quickly locate the installation position of pre-embedded bolts. The positioning plate 1 can prevent the pre-embedded bolts from tipping over during the positioning and fixing process. The pre-embedded bolt positioning device can be removed after the pre-embedded bolts are fixed or after the concrete is poured, making installation and disassembly convenient. The adjustable frame structure can be fixed to templates with different spacing and can also be adapted to the needs of different pre-embedded bolt installation positions. The pre-embedded bolt positioning device has a simple structure, is lightweight, and is easy to transport. It can improve positioning efficiency and accuracy, ensure the installation quality of pre-embedded bolts, avoid secondary construction due to inaccurate positioning of pre-embedded bolts during subsequent steel structure installation, and reduce later repair costs.
[0040] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.
Claims
1. A pre-embedded bolt positioning device, comprising a support frame, characterized in that: The support frame includes a support body, a positioning plate that can be connected to pre-embedded bolts, and a clamp for fixing. The clamp is slidably connected to the support body, and the positioning plate is slidably connected to the support body.
2. The pre-embedded bolt positioning device according to claim 1, characterized in that: The main body of the bracket includes two guide rods arranged opposite each other, the positioning plate is provided with bolt positioning holes, and the two sides of the positioning plate have sleeves that slide with the corresponding guide rods.
3. The pre-embedded bolt positioning device according to claim 2, characterized in that: The clamp includes two sleeves and a fixing member. The two sleeves are slidably connected to the corresponding guide rods, and both sleeves are connected to the fixing member, which can be locked onto the edge of the template.
4. The pre-embedded bolt positioning device according to claim 2 or 3, characterized in that: The main body of the bracket also includes an anti-detachment device, and the two guide rods are respectively connected to the anti-detachment device to close it.
5. The pre-embedded bolt positioning device according to any one of claims 1-3, characterized in that: It also includes a number of matching connection structures, wherein there are multiple support frames that are slidably connected to each other through corresponding connection structures.
6. The pre-embedded bolt positioning device according to claim 5, characterized in that: The connection structure includes at least one connector, the connector comprising two connecting tubes perpendicularly connected to each other, each connecting tube being slidably connected to the corresponding support body.
7. The pre-embedded bolt positioning device according to any one of claims 1-3, characterized in that: Both the support body and the positioning plate are equipped with scales for positioning.