CN219388399U - Locking bolt anti-falling structure in closed cavity - Google Patents
Locking bolt anti-falling structure in closed cavity Download PDFInfo
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- CN219388399U CN219388399U CN202320169259.3U CN202320169259U CN219388399U CN 219388399 U CN219388399 U CN 219388399U CN 202320169259 U CN202320169259 U CN 202320169259U CN 219388399 U CN219388399 U CN 219388399U
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Abstract
The utility model relates to an anti-falling structure of a locking bolt in a closed cavity, which is characterized in that: the connecting piece is fixedly connected with the bolt hole of the wall body through an aluminum bolt, a tool through hole is formed in the wall plate opposite to the bolt hole, a sleeve is detachably connected or fixedly connected in the tool through hole, a sleeve for locking the bolt can penetrate through a central pore canal of the sleeve, a first end of the sleeve is provided with a counter bore in butt joint with the head of the aluminum bolt, and the inner end of the sleeve is close to or abuts against the bolt hole. The locking bolt anti-drop's in this closed cavity structural design is reasonable, is favorable to avoiding aluminium system standard part to fall into the cavity and causes the risk of abnormal sound, has also promoted spiro union process efficiency.
Description
Technical Field
The utility model relates to an anti-falling structure of a locking bolt in a closed cavity.
Background
The screw connection is the most common connection mode in mechanical connection, and has the advantages of high efficiency, reliable and stable connection and the like; however, aiming at some special working conditions, such as when the standard component (bolt and the like) passes through the closed cavity to be screwed, the standard component is easy to fall off from the head of the electric screw gun, and at the moment, the standard component falls into the closed cavity and cannot be taken out, so that abnormal sound in parts can be caused, the loss of the standard component can be increased, and aiming at the problems, the purpose-made electric screw gun has a magnetic attraction function, namely, the steel standard component can be attracted through a magnet, and the standard component is prevented from falling off in the screwing process, but the method fails for the aluminum standard component.
Although the prior Chinese patent 'a novel bolt anti-falling tool, the publication No. CN 209370268U' can clamp a bolt on a workpiece, prevent the bolt from falling off and has stable anti-falling performance; the efficiency is high, and the product quality is improved; but this structure cannot solve the above technical problems.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present utility model aims to provide a locking bolt anti-falling structure in a closed cavity, which has reasonable structural design, is favorable for avoiding the risk of abnormal sound caused by the falling of an aluminum standard component into a cavity, and also improves the efficiency of a screwing procedure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses an anti-falling structure of a locking bolt in a closed cavity, which is characterized in that: the connecting piece is fixedly connected with the bolt hole of the wall body through an aluminum bolt, a tool through hole is formed in the wall plate opposite to the bolt hole, a sleeve is detachably connected or fixedly connected in the tool through hole, a sleeve for locking the bolt can penetrate through a central pore canal of the sleeve, a first end of the sleeve is provided with a counter bore in butt joint with the head of the aluminum bolt, and the inner end of the sleeve is close to or abuts against the bolt hole.
Further, the sleeve is fixed to the tool through hole of the wall plate by welding.
Further, the second end of the upper sleeve is spliced with the electric screw gun, so that the electric screw gun drives the sleeve and the aluminum bolt to rotate.
According to the application method of the locking bolt anti-falling structure in the closed cavity, the sleeve is fixedly connected or detachably connected to the tool through hole of the closed cavity, the inner end of the sleeve is close to or abuts against the bolt hole, when the connecting piece is screwed on the bolt hole, the sleeve connected with the head end of the electric screw gun penetrates through the sleeve to carry out a screwing process, at the moment, even if the aluminum bolt is carelessly fallen forwards in the operation process, the aluminum bolt can fall into the sleeve at first, at the moment, the head of the electric screw gun can be continuously extended forwards, the aluminum bolt can enter into the counter bore at the first end of the sleeve, the risk that the aluminum bolt falls into the cavity is avoided, meanwhile, the sleeve also plays a role of screwing guide, and the efficiency of the screwing process is greatly improved.
Drawings
FIG. 1 is a schematic view of the front view of the enclosed cavity of the present utility model;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
fig. 3 is a schematic cross-sectional view of the present utility model in its use state.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
The utility model relates to a locking bolt anti-falling structure in a closed cavity, which comprises a closed cavity 2 surrounded by a wallboard 1 and a bolt hole 3 arranged on the wallboard and used for locking a connecting piece, wherein the closed cavity 2 refers to a full-sealed cavity 2 and also refers to a non-full-sealed cavity 2, and the closed cavity 2 is used for dust prevention or water prevention.
The connecting piece 4 and the bolt hole 3 of the wall body are connected and fixed through an aluminum bolt 5 (besides the aluminum bolt 5, other metal bolts which cannot be magnetically attracted can be adopted), wherein a tool through hole 6 (preferably, the bolt hole 3 and the tool through hole 6 are coaxial) is arranged on a wall plate opposite to the bolt hole 3, a sleeve 7 is detachably or fixedly connected in the tool through hole 6, and the sleeve 7 is fixed with the tool through hole of the wall plate in a welding mode or is integrally formed during die casting; the sleeve 7 is a cylindrical pipe, and the section of the sleeve can be square, round or elliptic; the inner end 701 of the sleeve is close to or abuts the bolt hole 3.
The inner end 701 of the sleeve is close to or abuts the bolt hole 3 so that the dropped aluminium bolt 5 does not fall into the closed cavity 2, the inner end 701 of the sleeve having a distance to the bolt hole 3 (i.e. the inner end 701 of the sleeve is close to the bolt hole 3) which is smaller than the thickness of the aluminium bolt 5.
The sleeve 8 for locking the bolt can penetrate through the central pore canal of the sleeve, the sleeve 8 is a cylindrical part, the sleeve is matched with an electric screw gun 10, the first end part of the sleeve is provided with a counter bore 9 which is in butt joint with the head part of an aluminum bolt, the cross section of the counter bore 9 is usually regular hexagon, the sleeve 8 with the corresponding counter bore 9 size is matched with bolts of different types, and the second end part of the sleeve is spliced with the electric screw gun, so that the electric screw gun drives the sleeve and the aluminum bolt to rotate.
Preferably the central bore of the sleeve, the bolt hole 3 and the tool via 6 are coaxial.
According to the application method of the locking bolt anti-falling structure in the closed cavity, the sleeve is fixedly connected or detachably connected to the tool through hole of the closed cavity, the inner end of the sleeve is close to or abuts against the bolt hole, when the connecting piece is screwed on the bolt hole, the sleeve connected with the head end of the electric screw gun penetrates through the sleeve to carry out a screwing process, at the moment, even if the aluminum bolt is carelessly fallen forwards in the operation process, the aluminum bolt can fall into the sleeve at first, at the moment, the head of the electric screw gun can be continuously extended forwards, the aluminum bolt can enter into the counter bore at the first end of the sleeve, the risk that the aluminum bolt falls into the cavity is avoided, meanwhile, the sleeve also plays a role of screwing guide, and the efficiency of the screwing process is greatly improved.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present utility model in detail. It should be understood that the foregoing is only illustrative of the present utility model and is not intended to limit the scope of the present utility model. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present utility model are intended to be included in the scope of the present utility model.
Claims (3)
1. The utility model provides a locking bolt anti-drop's structure in closed cavity, its characterized in that: the connecting piece is fixedly connected with the bolt hole of the wall body through an aluminum bolt, a tool through hole is formed in the wall plate opposite to the bolt hole, a sleeve is detachably connected or fixedly connected in the tool through hole, a sleeve for locking the bolt can penetrate through a central pore canal of the sleeve, a first end of the sleeve is provided with a counter bore in butt joint with the head of the aluminum bolt, and the inner end of the sleeve is close to or abuts against the bolt hole.
2. The lock bolt anti-drop structure in a closed cavity according to claim 1, wherein: the sleeve is fixed with the tool through hole of the wallboard in a welding mode.
3. The lock bolt anti-drop structure in a closed cavity according to claim 1, wherein: the second end of the sleeve is spliced with the electric screw gun, so that the electric screw gun drives the sleeve and the aluminum bolt to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320169259.3U CN219388399U (en) | 2023-02-09 | 2023-02-09 | Locking bolt anti-falling structure in closed cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320169259.3U CN219388399U (en) | 2023-02-09 | 2023-02-09 | Locking bolt anti-falling structure in closed cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219388399U true CN219388399U (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320169259.3U Active CN219388399U (en) | 2023-02-09 | 2023-02-09 | Locking bolt anti-falling structure in closed cavity |
Country Status (1)
| Country | Link |
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| CN (1) | CN219388399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489757A (en) * | 2024-01-03 | 2024-02-02 | 常州市曼多林精密机械科技股份有限公司 | Anti-loosening structure of planetary reducer |
-
2023
- 2023-02-09 CN CN202320169259.3U patent/CN219388399U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489757A (en) * | 2024-01-03 | 2024-02-02 | 常州市曼多林精密机械科技股份有限公司 | Anti-loosening structure of planetary reducer |
| CN117489757B (en) * | 2024-01-03 | 2024-03-22 | 常州市曼多林精密机械科技股份有限公司 | Anti-loosening structure of planetary reducer |
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