Locking device of steel pull rod locking tool

By designing a locking device for a box-shaped fixture, and using high-strength bolts to connect the main plate, vertical plate, and reinforcing plate, the problem of existing locking fixtures being unable to accurately apply prestress was solved, enabling precise tensioning of the steel tie rod and low-cost operation.

CN224115984UActive Publication Date: 2026-04-14湖南中兴设备安装工程有限责任公司 +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing steel tie rod locking fixtures cannot accurately apply prestress, requiring the addition of stress plates by a third-party testing unit, which is time-consuming and expensive.

Method used

Design a locking device comprising two sets of box-shaped fixtures connected by high-strength bolts. The box-shaped fixtures consist of a main plate, a vertical plate, and a reinforcing plate, and are equipped with pads to accommodate steel tie rods of different sizes, achieving precise clamping and tensioning.

Benefits of technology

It achieves precise tensioning of steel tie rods, with high safety, good flexibility, convenient operation, low cost, simple and stable structure, and reusability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224115984U_ABST
    Figure CN224115984U_ABST
Patent Text Reader

Abstract

The utility model discloses a locking device of a steel pull rod locking tool. The locking device comprises a box-shaped tool, a high-strength bolt and a base plate. The two box-shaped tools are arranged and connected through the high-strength bolts, each box-shaped tool comprises the main plate, the vertical plate, the reinforcing plate and the like, the box-shaped tools are matched with the high-strength bolts, the steel pull rod can be clamped and fixed, base plates can be installed at the upper ends and the lower ends of the two box-shaped tools, and therefore the steel pull rod can be clamped and fixed. The steel tie rod tensioning device is suitable for steel tie rods of different sizes, high in safety, good in flexibility, beneficial to precise tensioning of the steel tie rods, simple and stable in overall structure, convenient and fast to operate, low in cost, capable of being repeatedly used and high in practicability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of steel tie rod technology, specifically a locking device for a steel tie rod locking fixture. Background Technology

[0002] A steel tie rod is a type of steel structural tie rod, usually made of steel, and is mainly used to enhance the stability and load-bearing capacity of steel structures. It can connect steel components and transfer horizontal loads to the foundation, thereby enhancing the stability of the building.

[0003] During the implementation of airport projects, steel tie rods need to be prestressed with precision. Since common steel tie rod locking fixtures cannot accurately apply prestress, the only way to measure prestress is to invite a third-party testing unit to install stress gauges. This is not only time-consuming and expensive, but also has certain limitations. Summary of the Invention

[0004] The purpose of this utility model is to provide a locking device for a steel tie rod locking fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a locking device for a steel tie rod locking fixture, comprising two sets of box-shaped fixtures, the two sets of box-shaped fixtures being connected by no less than two sets of high-strength bolts, and both the upper and lower ends of the two sets of box-shaped fixtures being connected to pads.

[0006] Both sets of box-shaped fixtures have the same components. The box-shaped fixture includes a main board, a vertical plate, and a reinforcing plate. The main board is set into two sets, upper and lower. Each set of main boards has a vertical plate on its opposite side away from the other set of box-shaped fixtures. The side of the vertical plate closest to the other set of box-shaped fixtures has four sets of reinforcing plates.

[0007] Preferably, all four sets of motherboards have identical components. Each of the front and rear sets of motherboards has a set of slot 1 at the middle of the opposite side. Each of the slot 1 has a set of slot 2 at the left and right ends. The end of the motherboard away from slot 1 has an expansion hole.

[0008] Preferably, the pad includes a connecting plate, a connecting hole, and an arc-shaped plate. The connecting plate has a connecting hole with a corresponding expansion hole at its middle end, and an arc-shaped plate at one end of the connecting plate.

[0009] Preferably, the two sets of arc-shaped plates can form a circular opening after being attached together.

[0010] Preferably, after the front and rear sets of the motherboards are attached, the first hole and the second hole can also form a circular opening.

[0011] Preferably, the diameter of the circular opening of the arc plate is smaller than the diameter of the circular opening of the slot.

[0012] Preferably, the four sets of reinforcing plates are distributed in pairs at both ends of the first slot, and the second slot is located between the two sets of reinforcing plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The system features two sets of box-shaped fixtures connected by high-strength bolts. Each box-shaped fixture includes components such as a main plate, upright plate, and reinforcing plate. Through their interaction with the high-strength bolts, the steel tie rod can be clamped and fixed. Both sets of box-shaped fixtures can be fitted with pads at their top and bottom to accommodate steel tie rods of different sizes. This design offers high safety, good flexibility, and facilitates precise tensioning of the steel tie rod. The overall structure is simple and stable, easy to operate, low in cost, reusable, and highly practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection structure of the box-type tooling of this utility model;

[0016] Figure 2 This is a right-side view of the box-type tooling connection structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rear box-type tooling structure of this utility model;

[0018] Figure 4 This is a top view of the pad structure of this utility model;

[0019] Figure 5 This is a top view of the pad connection structure of this utility model.

[0020] In the diagram: Box-type tooling-1, high-strength bolt-2, pad-3, main board-11, upright plate-12, reinforcing plate-13, slot 1-111, slot 2-112, expansion hole-113, connecting plate-31, connecting hole-32, arc plate-33. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] Please see Figure 1-5 This utility model provides a locking device for a steel tie rod locking fixture, including two sets of box-shaped fixtures 1. The two sets of box-shaped fixtures 1 are connected by no less than two sets of high-strength bolts 2, and the upper and lower ends of the two sets of box-shaped fixtures 1 can be connected with pads 3, which can be used to adapt to steel tie rods of different sizes.

[0023] Please see Figure 1-3This utility model provides a locking device for a steel tie rod locking fixture. The components of the two sets of box-shaped fixtures 1 are the same. The box-shaped fixture 1 includes a main plate 11, a vertical plate 12 and a reinforcing plate 13. The main plate 11 is arranged in two sets, upper and lower. Each set of the upper and lower sets of main plates 11 is provided with a set of vertical plates 12 at the position away from the other set of box-shaped fixtures 1. The side of the vertical plate 12 close to the other set of box-shaped fixtures 1 is provided with four sets of reinforcing plates 13. The four sets of reinforcing plates 13 are distributed in pairs at both ends of the first slot 111. The second slot 112 is located between the two sets of reinforcing plates 13, which can improve the stability during tensioning. The thickness of the vertical plate 12 is 16mm, and the thickness of both the vertical plate 12 and the reinforcing plate 13 is 10mm, which can improve the strength of the box-shaped fixture 1.

[0024] All four motherboards 11 have the same components. The middle of the opposite side of the front and rear motherboards 11 is provided with a set of slot 111. The left and right ends of slot 111 are provided with a set of slot 212. When the front and rear motherboards 11 are attached, slot 111 and slot 212 can form a circular opening. The end of the motherboard 11 away from slot 111 is provided with an expansion hole 113 for connecting the pad 3.

[0025] Please see Figure 4-5 This utility model provides a locking device for a steel tie rod locking fixture. The pad 3 includes a connecting plate 31, a connecting hole 32, and an arc plate 33. The connecting plate 31 has a connecting hole 32 with a corresponding expansion hole 113 in the middle. One end of the connecting plate 31 has an arc plate 33. When the two sets of arc plates 33 are fitted together, they can form a circular opening. The diameter of the circular opening of the arc plate 33 is smaller than the circular opening of the slot 111, which can accommodate steel tie rods of different sizes.

[0026] The working principle is as follows:

[0027] In use, the steel tie rod can be clamped by two sets of box-shaped fixtures 1 from top to bottom. The steel tie rod is clamped by two sets of slots 111. When dealing with small-sized steel tie rods, the pad 3 can be placed on the outside of the box-shaped fixture 1 through the connection of the connecting hole 32 and the expansion hole 113, and locked by the arc plate 33. The slots 112 at both ends of slot 111 can be used to carry cables. Then, the two sets of box-shaped fixtures 1 are connected by high-strength bolts 2 to complete the assembly of the box-shaped fixture 1, which facilitates the subsequent tensioning operation.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking device for a steel tie rod locking fixture, characterized in that: It includes two sets of box-shaped fixtures (1), the two sets of box-shaped fixtures (1) are connected by no less than two sets of high-strength bolts (2), and the upper and lower ends of the two sets of box-shaped fixtures (1) can be connected with pads (3). The components of the two sets of box-shaped fixtures (1) are the same. The box-shaped fixture (1) includes a main board (11), a vertical plate (12) and a reinforcing plate (13). The main board (11) is set into two sets, upper and lower. Each set of the main board (11) is provided with a vertical plate (12) on the opposite side away from the other set of box-shaped fixtures (1). The vertical plate (12) is provided with four sets of reinforcing plates (13) on the side close to the other set of box-shaped fixtures (1).

2. The locking device of the steel tie rod locking fixture according to claim 1, characterized in that: The components of the four sets of motherboards (11) are all the same. The middle of the opposite side of the front and rear sets of motherboards (11) is provided with a set of slot 1 (111). The left and right ends of slot 1 (111) are provided with a set of slot 2 (112). The end of the motherboard (11) away from slot 1 (111) is provided with an expansion hole (113).

3. The locking device of the steel tie rod locking fixture according to claim 2, characterized in that: The pad (3) includes a connecting plate (31), a connecting hole (32) and an arc plate (33). The connecting plate (31) has a connecting hole (32) with a corresponding expansion hole (113) at its middle end, and an arc plate (33) is provided at one end of the connecting plate (31).

4. The locking device of the steel tie rod locking fixture according to claim 3, characterized in that: The two sets of arc-shaped plates (33) can form a circular opening when they are attached together.

5. The locking device of the steel tie rod locking fixture according to claim 3, characterized in that: After the two sets of motherboards (11) are attached together, the first hole (111) and the second hole (112) can also form a circular opening.

6. The locking device of the steel tie rod locking fixture according to claim 5, characterized in that: The diameter of the circular opening of the arc plate (33) is smaller than that of the circular opening of the slot (111).

7. The locking device of the steel tie rod locking fixture according to claim 2, characterized in that: The four sets of reinforcing plates (13) are distributed in pairs at both ends of the first hole groove (111), and the second hole groove (112) is located between the two sets of reinforcing plates (13).