Bolt high-precision pre-embedded fixing device

By using adjustable connecting rods and ring-shaped connecting buckles on the pre-embedded bolts to form a statically indeterminate space frame structure, the problem of inaccurate positioning of the pre-embedded bolts is solved, achieving a high-precision positioning and low-cost reusable pre-embedded fixing effect.

CN224200288UActive Publication Date: 2026-05-05THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
Filing Date
2025-04-17
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In engineering construction, inaccurate positioning of pre-embedded bolts leads to installation difficulties, high rework rates, and affects project quality and economic benefits.

Method used

An adjustable connecting rod and a ring-shaped connecting buckle are used to form a statically indeterminate space frame structure. The length of the connecting rod is adjusted by a positive and negative thread adjuster to achieve high-precision positioning of the pre-embedded bolts. The ring-shaped connecting buckle is used to connect with the pre-embedded bolts to form a statically indeterminate space frame structure, which improves the ability to resist construction interference.

Benefits of technology

It achieves high-precision positioning of pre-embedded bolts, reduces construction interference, improves installation efficiency and project quality, and the device is reusable and inexpensive.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a bolt high-precision pre-embedding fixing device, which relates to the technical field of bolt pre-embedding fixing, and comprises a plurality of adjustable connecting rods used for being connected with a plurality of pre-embedded bolts to form a space grid structure, the adjustable connecting rods comprise a left connecting rod and a right connecting rod, and the left connecting rod and the right connecting rod are connected through a positive and negative thread adjuster. The device disclosed by the utility model is low in manufacturing cost, simple to mount and dismount, reusable and suitable for large-area popularization and use.
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Description

Technical Field

[0001] This utility model relates to the field of bolt pre-embedding and fixing technology, specifically a high-precision bolt pre-embedding and fixing device. Background Technology

[0002] In engineering construction, the precise positioning of embedded bolts is a crucial step in ensuring the quality of steel structure or equipment installation. Currently, during construction, factors such as vibration during concrete pouring, formwork deformation, or human error often lead to misalignment of embedded bolts, causing difficulties in subsequent installation, high rework rates, and project delays, severely impacting project quality and economic benefits. Summary of the Invention

[0003] In view of the above-mentioned prior art, this utility model proposes a reusable high-precision pre-embedded fixing device for bolts to achieve high-precision positioning and fixing of pre-embedded bolts.

[0004] This utility model provides a high-precision pre-embedded fixing device for bolts, including several adjustable connecting rods for connecting with several pre-embedded bolts to form a spatial grid structure. The adjustable connecting rods include a left connecting rod and a right connecting rod, which are connected by a forward and reverse thread adjuster.

[0005] Preferably, the adjustable connecting rod is connected to the pre-embedded bolt via a ring-shaped connecting buckle.

[0006] Preferably, the annular connecting buckle is sleeved on the pre-embedded bolt, and the annular connecting buckle is connected to the adjustable connecting rod through the connecting bolt.

[0007] Preferably, the outer side of the annular connecting buckle is provided with several single ear plates, and both ends of the adjustable connecting rod are provided with double ear plates, and the double ear plates are connected to the single ear plates by connecting bolts.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The high-precision pre-embedded fixing device for bolts provided by this utility model uses a ring-shaped connecting buckle to connect the pre-embedded bolts and adjustable connecting rods to form a statically indeterminate space frame structure, which greatly improves its resistance to construction interference. Moreover, the pre-embedded position can be finely adjusted by adjusting the length of the adjustable connecting rod after the concrete is poured, further improving the pre-embedded accuracy. In addition, the device is inexpensive, easy to install and disassemble, and reusable, making it suitable for large-scale promotion and use. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the high-precision pre-embedded fixing device for bolts in this embodiment of the present invention.

[0010] Figure 2 This is a partial structural schematic diagram of the high-precision pre-embedded fixing device for bolts in an embodiment of this utility model.

[0011] In the diagram, 1 is the embedded bolt; 2 is the left connecting rod; 3 is the right connecting rod; 4 is the forward / reverse thread adjuster; 5 is the ring-shaped connecting buckle; 6 is the single ear plate; 7 is the double ear plate; and 8 is the connecting bolt. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] Example: Figure 1 , 2 The high-precision pre-embedded fixing device for bolts shown includes several adjustable connecting rods for connecting with several pre-embedded bolts 1 to form a spatial grid structure. The adjustable connecting rods include a left connecting rod 2 and a right connecting rod 3, which are connected by a forward / reverse thread adjuster 4. The adjustable connecting rods are connected to the pre-embedded bolts 1 by an annular connecting buckle 5, which is sleeved on the pre-embedded bolts 1. Several single ear plates 6 are provided on the outer side of the annular connecting buckle 5. Both ends of the adjustable connecting rods are provided with double ear plates 7, which are connected to the single ear plates 6 by connecting bolts 8.

[0014] In practical application, according to the bolt pre-embedded drawings, select an appropriate size ring connecting buckle 5 and configure an adjustable connecting rod of appropriate length. After the reinforcement construction is completed, weld the pre-embedded bolt 1 to the position specified in the drawings, and then put two ring connecting buckles 5, which are used for diagonal connection and vertical connection respectively, onto the pre-embedded bolt 1 in sequence. Adjust the ring connecting buckles 5 connected to the same adjustable connecting rod to the same elevation, and connect them with the adjustable connecting rod to form a spatial grid structure between the pre-embedded bolt 1 and the adjustable connecting rod. After the concrete is vibrated, check the position of the pre-embedded bolt 1. If there is any deviation, adjust it to the precise position by rotating the positive and negative thread adjuster 4.

[0015] The device in this embodiment uses a ring-shaped connecting buckle 5 to connect the pre-embedded bolt 1 and the adjustable connecting rod to form a statically indeterminate space frame structure, which greatly improves its resistance to construction interference. After the concrete is poured, the pre-embedded position can be finely adjusted by adjusting the length of the adjustable connecting rod, further improving the pre-embedded accuracy. Moreover, the device is inexpensive, easy to install and disassemble, and reusable, making it suitable for large-scale promotion and use.

[0016] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent solutions made using the contents of this utility model specification, whether directly or indirectly applied to other related technical fields, are also within the patent protection scope of this utility model.

Claims

1. A high-precision bolt pre-embedded fixing device, characterized in that, It includes several adjustable connecting rods for connecting with several pre-embedded bolts to form a spatial grid structure. The adjustable connecting rods include a left connecting rod and a right connecting rod, which are connected by a forward and reverse wire adjuster.

2. The high-precision bolt pre-embedded fixing device as described in claim 1, characterized in that, The adjustable connecting rod is connected to the pre-embedded bolt via a ring-shaped connecting buckle.

3. The high-precision bolt pre-embedded fixing device as described in claim 2, characterized in that, The annular connecting buckle is sleeved on the pre-embedded bolt, and the annular connecting buckle is connected to the adjustable connecting rod through the connecting bolt.

4. The high-precision bolt pre-embedded fixing device as described in claim 3, characterized in that, The outer side of the annular connecting buckle is provided with several single ear plates, and both ends of the adjustable connecting rod are provided with double ear plates. The double ear plates are connected to the single ear plates by connecting bolts.