Street lamp bolt protective sleeve

By designing a protective sleeve for street light bolts, and utilizing plum blossom-shaped guide holes and an extrusion injection section to achieve automatic application of anti-corrosion coating, the problems of slow construction progress and difficulty in guaranteeing quality in existing technologies have been solved, thus achieving efficient bolt anti-corrosion construction.

CN223938449UActive Publication Date: 2026-02-24SINOHYDRO BUREAU 6 CO LTD
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Patent Information

Application Number
CN202520655516.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-02-24
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

The existing bolt rust prevention process involves manually applying anti-corrosion materials and covering them with plastic film, which is slow and difficult to guarantee quality.

Method used

A protective sleeve for street light bolts is designed, comprising a bottom protective sleeve, a protective sleeve body, and an outer protective shell. It utilizes plum blossom-shaped guide holes and an extrusion injection section to achieve automatic application of anti-corrosion coating, thereby improving construction efficiency and quality.

Benefits of technology

This accelerated the construction progress, improved the quality of anti-corrosion coating on bolts, and avoided the problem of some bolts being missed in the coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a street lamp bolt protective sleeve, which belongs to the technical field of bolt protection and comprises a bottom protective sleeve, a protective sleeve main body and an external protective shell. Through the design of the bottom protective sleeve, the protective sleeve main body and the external protective shell, when the street lamp is used, the bottom protective sleeve is aligned to the top end of the bolt column, the street lamp bolt protective sleeve is pushed downwards, the top end of the bolt column limits the extrusion injection part, the extrusion injection part is compressed, and internal gas is extruded into the anti-corrosion material storage part; when a user rotates the protective sleeve body to break through the plum-blossom-shaped flow guide hole, the liquid anti-corrosion coating flows out of the plum-blossom-shaped flow guide hole and flows to the bolt column, and the user can rotate the protective sleeve body so that the liquid anti-corrosion coating can be evenly smeared on the side face of the bolt column. And compared with a traditional manual smearing mode, the construction progress can be accelerated, and the construction quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of bolt protection technology, specifically a protective sleeve for street lamp bolts. Background Technology

[0002] Municipal engineering projects generally include road engineering, landscaping engineering and lighting engineering. According to existing regulations, lighting engineering requires the laying of pipelines and the pouring of street light foundations to be completed during the road engineering construction period. In order not to affect the subsequent formal commencement of lighting engineering construction, it is necessary to do a good job of bolt rust prevention.

[0003] Existing bolt rust prevention processes all involve manually applying anti-corrosion materials and then covering them with plastic film. Traditional methods are not only slow to proceed, but also have certain problems with construction quality. Therefore, this utility model provides a protective sleeve for street light bolts. Utility Model Content

[0004] To address the issue that existing bolt rust prevention processes involve manually applying anti-corrosion materials and then covering them with plastic film, which is slow and has quality issues, this invention provides a protective sleeve for street light bolts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A street light bolt protective sleeve, comprising:

[0007] A bottom protective sleeve, wherein the bottom protective sleeve is ring-shaped;

[0008] The protective sleeve body has its bottom end fastened to the bottom protective sleeve, and the protective sleeve body and the bottom protective sleeve can rotate relative to each other;

[0009] An outer protective shell, which is fixedly connected to the top of the protective sleeve body;

[0010] The protective sleeve body includes an outer cylinder and an inner cylinder connected to each other. The inner cylinder is located inside the outer cylinder, and a corrosion-resistant material storage section is formed between the outer cylinder and the inner cylinder. The side wall of the inner cylinder is provided with a plum blossom-shaped guide hole. An extrusion injection section is fixedly connected to the inner bottom of the inner cylinder. The inner cavity of the extrusion injection section is connected to the corrosion-resistant material storage section.

[0011] The interior of the anti-corrosion material storage section is equipped with anti-corrosion coating.

[0012] As a further description of the above technical solution:

[0013] The top of the bottom protective sleeve has an annular mounting opening, and the bottom of the protective sleeve body is fixedly connected to an inverted plug corresponding to the mounting opening.

[0014] As a further description of the above technical solution:

[0015] The bottom protective sleeve has an inner ring on its inner side. The inner ring is made of elastic material and has a guide opening on the inner side of its bottom end.

[0016] As a further description of the above technical solution:

[0017] The outer side of the outer cylinder is provided with a reinforcing part arranged along the axial direction.

[0018] As a further description of the above technical solution:

[0019] The bottom edge of the outer protective shell extends downwards and is fitted onto the outside of the outer cylinder.

[0020] As a further description of the above technical solution:

[0021] The top center of the outer cylinder is set as a sealing head, and the bottom of the outer protective shell is provided with a notch corresponding to the sealing head.

[0022] The beneficial effects of this utility model are:

[0023] This invention, through the design of a bottom protective sleeve, a protective sleeve body, and an outer protective shell, allows for efficient use. When the bottom protective sleeve is aligned with the top of the bolt post, the streetlight bolt protective sleeve is pushed downwards. The top of the bolt post restricts the compression injection section, compressing it and forcing internal gas into the anti-corrosion material storage section. This forces the gas through the plum blossom-shaped guide holes, allowing liquid anti-corrosion coating to flow out and onto the bolt post. The user can also rotate the protective sleeve body to ensure the liquid anti-corrosion coating is evenly applied to the side of the bolt post. Compared to traditional manual application methods, this invention accelerates construction progress and improves construction quality. Attached Figure Description

[0024] The following figures are shown to more clearly illustrate a street light bolt protective sleeve;

[0025] Figure 1 This is a cross-sectional view of the present invention during installation;

[0026] Figure 2 This is a perspective view of the present invention;

[0027] Figure 3 This is a view of the inner side of the protective sleeve body of this utility model;

[0028] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle.

[0029] The labels in the attached diagram;

[0030] 1. Bottom protective sleeve; 1a. Mounting port; 1b. Inner ring; 2. Protective sleeve body; 201. Outer cylinder; 201a. Sealing head; 201b. Reinforcing part; 201c. Inverted plug connector; 202. Inner cylinder; 203. Plum blossom-shaped guide hole; 204. Extrusion injection part; 3. Outer protective shell. Detailed Implementation

[0031] Please refer to the attached document. Figures 1-4 This application illustrates a street light bolt protective sleeve provided in an embodiment of the present application. It is used to protect the bolts. The street light bolt protective sleeve can be installed during the pre-embedding stage of road engineering, thereby effectively preventing bolt corrosion problems and bolt contamination problems during concrete foundation pouring. Specifically, it includes: a bottom protective sleeve 1, a protective sleeve body 2, and an outer protective shell 3.

[0032] The bottom protective sleeve 1 is ring-shaped. During installation, the bottom protective sleeve 1 is fixedly fitted onto the bolt post. The bottom end of the protective sleeve body 2 is fastened to the bottom protective sleeve 1. The bottom protective sleeve 1 stabilizes the bottom end of the protective sleeve body 2. The protective sleeve body 2 and the bottom protective sleeve 1 can rotate relative to each other. When in use, the protective sleeve body 2 can be rotated to ensure that the anti-corrosion coating is applied evenly. The outer protective shell 3 is fixedly connected to the top of the protective sleeve body 2. The outer protective shell 3 serves to protect the top of the protective sleeve body 2.

[0033] Specifically, the protective sleeve body 2 includes an outer cylinder 201 and an inner cylinder 202 connected to each other. The inner cylinder 202 is located inside the outer cylinder 201, and a corrosion-resistant material storage section is formed between the outer cylinder 201 and the inner cylinder 202. The interior of the corrosion-resistant material storage section is equipped with a corrosion-resistant coating (generally a liquid corrosion-resistant coating). The side wall of the inner cylinder 202 is provided with a quincunx-shaped guide hole 203. The quincunx-shaped guide hole 203 is cross-shaped and in a semi-connected state. That is, under normal circumstances, the quincunx-shaped guide hole 203 can prevent the liquid corrosion-resistant coating from overflowing. However, under the action of external pressure, the quincunx-shaped guide hole 203 is easily broken. The inner bottom of the inner cylinder 202 is fixedly connected to a compression injection section 204. The compression injection section 204 is a flexible chamber, and the inner cavity of the compression injection section 204 is connected to the corrosion-resistant material storage section.

[0034] When using this streetlight bolt protective sleeve, align the bottom protective sleeve 1 with the top of the bolt post, and then... Figure 1As shown, the protective sleeve is pushed downwards onto the streetlight bolt. The top of the bolt is compressed, restricting the injection section 204. The internal gas is forced into the anti-corrosion material storage section, thus breaking through the plum blossom-shaped guide hole 203. Liquid anti-corrosion coating flows out from the plum blossom-shaped guide hole 203 and onto the bolt. The user can also rotate the main body 2 of the protective sleeve to ensure the liquid anti-corrosion coating is evenly applied to the side of the bolt. Compared to traditional manual application, this method speeds up construction and improves quality. After the anti-corrosion material is applied, the streetlight bolt protective sleeve is completely fitted onto the bolt, preventing missed areas caused by multiple workers simultaneously applying the coating, which is difficult for workers to notice.

[0035] In one embodiment, the top of the bottom protective sleeve 1 is provided with an annular mounting opening 1a, and the bottom of the protective sleeve body 2 is fixedly connected with an inverted plug 201c corresponding to the mounting opening 1a. The inverted plug 201c is inserted into the inside of the mounting opening 1a to form a snap-fit, and the inverted plug 201c can rotate inside the annular mounting opening 1a.

[0036] In one embodiment, an inner ring 1b is provided on the inner side of the bottom protective sleeve 1. The inner ring 1b is made of elastic material, and a guide opening is provided on the inner side of the bottom end of the inner ring 1b, so that it can be easily fitted downward onto the threaded post. The inner ring 1b can be elastically clamped on the threaded post.

[0037] In one embodiment, an axially arranged reinforcing part 201b is provided on the outer side of the outer cylinder 201. The reinforcing part 201b is used to strengthen the strength of the outer cylinder 201. When in use, the user can press the outer protective shell 3 downward with the palm of their hand and then press down on the outer cylinder 201 to avoid excessive deformation of the outer cylinder 201.

[0038] In one embodiment, the bottom edge of the outer protective shell 3 extends downward and is fitted onto the outside of the outer cylinder 201 (not shown in the figure). This structure has a similar function to the reinforcing part 201b, which is to ensure that the outer cylinder 201 will not deform when the outer protective shell 3 is pressed downward.

[0039] In one embodiment, the top center position of the outer cylinder 201 is set as the sealing head 201a. When the outer cylinder 201 and the inner cylinder 202 are formed, the top of the outer cylinder 201 is open, and after the anti-corrosion coating is put into the inside, it is formed twice by hot pressing. After forming, the sealing head 201a is formed at the top center position of the outer cylinder 201. The bottom of the outer protective shell 3 is provided with a notch at the position corresponding to the sealing head 201a.

[0040] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0041] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A protective sleeve for street light bolts, characterized in that, include: Bottom protective sleeve (1), wherein the bottom protective sleeve (1) is annular; The protective sleeve body (2) is connected at the bottom end to the bottom protective sleeve (1), and the protective sleeve body (2) and the bottom protective sleeve (1) can rotate relative to each other; An outer protective shell (3) is fixedly connected to the top of the protective sleeve body (2); The protective sleeve body (2) includes an outer cylinder (201) and an inner cylinder (202) connected to each other. The inner cylinder (202) is located inside the outer cylinder (201), and a corrosion-resistant material storage section is formed between the outer cylinder (201) and the inner cylinder (202). The side wall of the inner cylinder (202) is provided with a plum blossom-shaped guide hole (203). The inner bottom of the inner cylinder (202) is fixedly connected to a compression injection section (204), and the inner cavity of the compression injection section (204) is connected to the corrosion-resistant material storage section. The interior of the anti-corrosion material storage section is equipped with anti-corrosion coating.

2. The street light bolt protective sleeve according to claim 1, characterized in that: The bottom protective sleeve (1) has an annular mounting opening (1a) at the top, and the bottom of the protective sleeve body (2) is fixedly connected with an inverted plug connector (201c) corresponding to the mounting opening (1a).

3. A street light bolt protective sleeve according to claim 1, characterized in that: The bottom protective sleeve (1) has an inner ring (1b) on its inner side. The inner ring (1b) is made of elastic material and has a guide opening on the inner side of its bottom end.

4. A street light bolt protective sleeve according to claim 1, characterized in that: The outer cylinder (201) is provided with a reinforcing part (201b) arranged along the axial direction on its outer side.

5. A street light bolt protective sleeve according to claim 1, characterized in that: The bottom edge of the outer protective shell (3) extends downward and is fitted onto the outside of the outer cylinder (201).

6. A street light bolt protective sleeve according to claim 1, characterized in that: The top center of the outer cylinder (201) is set as a sealing head (201a), and the bottom of the outer protective shell (3) is provided with a notch at the position corresponding to the sealing head (201a).