Anti-theft bolt assembling and disassembling sleeve

Abstract

The anti-theft bolt assembling and disassembling sleeve comprises a steel pipe body, a connecting sleeve is fixed to the end of the steel pipe body, and an opening sleeve is fixed to the front end of the connecting sleeve; the open sleeve is provided with an open hole matched with the nut; the interior of the connecting sleeve is sunken, so that the inner diameter of the connecting sleeve is larger than that of the opening sleeve; notches are formed in the side walls of the opening sleeve and the connecting sleeve and used for allowing the anti-theft compression nut to enter. The anti-theft bolt mounting and dismounting sleeve can be freely matched by directly utilizing an existing tool, so that the problem of insufficient torque caused by mismatched models is prevented, the engineering construction quality is improved, the problem of limitation of an open spanner to the construction space is avoided, the construction process is simplified by adopting lateral sleeving, and meanwhile, when a conventional bolt is mounted and dismounted, the sleeve can be directly sleeved from the bottom, so that the mounting and dismounting efficiency is improved. And the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical fields of civil engineering and mechanical engineering, and more particularly to an anti-theft bolt assembly and disassembly sleeve. Background Art

[0002] Currently, infrastructure is experiencing rapid development, particularly with corrugated roadside guardrails on highways of all levels, as the nation pursues the "Four Good Highways" initiative. Corrugated guardrails are typically connected with anti-theft bolts, for which specialized wrenches are scarce. Traditional installation and removal methods typically utilize larger power sockets or open-end wrenches. These disadvantages are: the anti-theft bolts are round and lack sharp corners, making conventional sockets unable to achieve the required torque. Furthermore, the corrugated guardrail's shape limits the operating space for open-end wrenches, resulting in inefficient installation. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides an anti-theft bolt installation and removal sleeve.

[0004] The technical solution of this utility model is as follows:

[0005] A theft-proof bolt assembly and disassembly sleeve comprises a steel pipe main body, a connecting sleeve fixed to the end of the steel pipe main body, and an open sleeve fixed to the front end of the connecting sleeve; the open sleeve is provided with an opening matching the nut; the connecting sleeve is internally recessed so that the inner diameter of the connecting sleeve is larger than the inner diameter of the open sleeve; the side walls of the open sleeve and the connecting sleeve are both provided with notches for the entry of the anti-theft compression nut.

[0006] The internal opening of the open sleeve is hexagonal, with two sides cut off, and the diameter is adapted to the small head of the anti-theft compression nut.

[0007] The inner diameter of the connecting sleeve is larger than the diameter of the large head of the anti-theft compression nut.

[0008] The steel pipe body, the connecting sleeve and the opening sleeve are stacked and welded in sequence.

[0009] An auxiliary wrench hole is provided at the end of the steel pipe body, and a round stick is inserted into the auxiliary wrench hole.

[0010] The end of the steel pipe body is connected to a conventional electric sleeve drilling rig.

[0011] The technical effects and advantages of this utility model are:

[0012] The anti-theft bolt installation and removal sleeve can be directly adapted with existing tools, preventing the problem of insufficient torque due to mismatched models, improving the quality of engineering construction, avoiding the limitation of the working space on the open-end wrench, and adopting lateral insertion to simplify the construction process. At the same time, when installing and removing conventional bolts, it can also be directly inserted from the bottom, and the scope of application is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the patent and the nut;

[0015] Figure 3 for Figure 2 Cross-sectional view;

[0016] Figure 4 It is a schematic diagram of the small head structure of the open sleeve and the anti-theft tightening nut. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0018] like Figures 1 to 4 The anti-theft bolt assembly and disassembly sleeve shown includes a steel pipe body 1, a connecting sleeve 2 is fixed to the end of the steel pipe body 1, and an open sleeve 3 is fixed to the front end of the connecting sleeve 2; the open sleeve is provided with an opening matching the nut; the connecting sleeve is recessed so that the inner diameter of the connecting sleeve is larger than the inner diameter of the opening sleeve; the side walls of the open sleeve and the connecting sleeve are both provided with notches for the entry of the anti-theft tightening nut 4.

[0019] Further, such as Figure 4 As shown, the internal opening of the open sleeve is hexagonal, with two sides cut off, and the diameter is adapted to the small head 41 of the anti-theft pressing nut.

[0020] Furthermore, the connecting sleeve is a steel sleeve that is one size larger than the open sleeve, and its inner diameter is adapted to the large head 42 of the anti-theft compression nut.

[0021] Furthermore, the steel pipe body, the connecting sleeve, and the opening sleeve are stacked and welded in sequence.

[0022] Furthermore, an auxiliary wrench hole is provided at the end of the steel pipe body, and the auxiliary wrench hole is inserted into the round stick 5. Alternatively, the end of the steel pipe body is connected to a conventional electric socket drill. Example

[0023] like Figure 2 and Figure 3As shown, when using the sleeve, the anti-theft compression nut is inserted into the sleeve from the side opening, and the other end is directly connected to a drill rig with a conventional electric sleeve, or a round stick is inserted into the auxiliary wrench hole and manually rotated.

[0024] Figure 3 The middle anti-theft locknut 6 is tightened with a conventional sleeve. To install, first tighten the anti-theft compression nut, then the anti-theft locknut. To remove, first tighten the anti-theft locknut, then the anti-theft compression nut.

[0025] The anti-theft bolt installation and removal sleeve is directly compatible with existing electric wrenches, is simple to manufacture and highly applicable, and improves installation and removal efficiency during operation.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-theft bolt assembly and disassembly sleeve, characterized by: It includes a steel pipe main body, a connecting sleeve is fixed at the end of the steel pipe main body, and an open sleeve is fixed at the front end of the connecting sleeve; the open sleeve is provided with an opening matching the nut; the connecting sleeve is recessed so that the inner diameter of the connecting sleeve is larger than the inner diameter of the opening sleeve; the side walls of the opening sleeve and the connecting sleeve are both provided with notches for preventing the entry of the tightening nut from being stolen.

2. The anti-theft bolt assembly and disassembly sleeve according to claim 1, characterized in that: The internal opening of the open sleeve is hexagonal, with two sides cut off, and the diameter is adapted to the small head of the anti-theft compression nut.

3. The anti-theft bolt assembly and disassembly sleeve according to claim 1, characterized in that: The inner diameter of the connecting sleeve is larger than the diameter of the large head of the anti-theft compression nut.

4. The anti-theft bolt assembly and disassembly sleeve according to claim 1, characterized in that: The steel pipe body, the connecting sleeve and the opening sleeve are stacked and welded in sequence.

5. The anti-theft bolt assembly and disassembly sleeve according to claim 1, characterized in that: An auxiliary wrench hole is provided at the end of the steel pipe body, and a round stick is inserted into the auxiliary wrench hole.

6. The anti-theft bolt assembly and disassembly sleeve according to claim 1, characterized in that: The end of the steel pipe body is connected to a conventional electric sleeve drilling rig.

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