Detachable single-face bolt fastener

Abstract

The utility model discloses a detachable single-face bolt fastener which comprises a first bolt, the upper end of the first bolt is fixedly connected with a nut, the outer end of the nut is provided with a plurality of positioning grooves, limiting grooves are formed in the positioning grooves, positioning columns are correspondingly arranged in the positioning grooves, and the limiting grooves are fixedly connected with the first bolt. A limiting groove is formed in one end of the nut, a limiting block is fixedly connected to the bottom of the positioning column, the limiting block corresponds to the limiting groove, a connecting block is fixedly connected to the other end of the positioning column, and a handle is fixedly connected to the other end of the connecting block. And the bolt can be directly rotated through some rod-shaped tools, the effect of conveniently disassembling and assembling the abraded bolt is achieved, and the practicability and convenience of the whole bolt are improved.

Description

Technical Field

[0001] The utility model relates to the field of bolts, in particular to a detachable single-sided bolt fastener. Background Art

[0002] A fastening bolt is a type of mechanical part. It is a cylindrical threaded fastener equipped with a nut. It consists of a head and a screw (a cylinder with external threads). It needs to be matched with a nut and is used to fasten two parts with through holes. This type of connection is called a bolt connection. The nut can be unscrewed from the bolt, and the two parts can be separated. Therefore, the bolt connection is a detachable connection.

[0003] However, the bolt heads of general bolt fasteners have a single shape and can only be fixed by a screwdriver. When the groove on the top of the bolt head cannot be used due to rust, the bolt cannot be removed. In addition, the fixing method is single, and one bolt can only be fixed from both sides by nuts, and the parts cannot be drilled and fixed, resulting in the need to purchase another bolt when drilling and fixing the parts, which costs a lot of money. Utility Model Content

[0004] The utility model aims to provide a detachable single-sided bolt fastener, which solves the problem that the bolt head of the single-sided bolt fastener in the prior art has a single shape and can only be fixed by a screwdriver, and the bolt cannot be removed when the groove on the top of the bolt head cannot be used due to rust.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a detachable single-sided bolt fastener, comprising a first bolt, a nut is fixedly connected to the upper end of the first bolt, a plurality of positioning grooves are provided at the outer end of the nut, a limiting groove is provided inside the positioning groove, a positioning column is correspondingly provided inside the positioning groove, and a limiting block is fixedly connected to the bottom of the positioning column;

[0006] The limiting block corresponds to the limiting groove, the other end of the positioning column is fixedly connected to the connecting block, and the other end of the connecting block is fixedly connected to the handle.

[0007] As a further description of the above technical solution: an anti-slip sleeve is fixedly connected to the handle.

[0008] As a further description of the above technical solution: a nut is threadedly connected to the first bolt.

[0009] As a further description of the above technical solution: a screw hole is provided inside the first bolt, and a second bolt is threadedly connected inside the screw hole.

[0010] As a further description of the above technical solution: a drill bit is fixedly connected to the lower end of the second bolt, and a cross groove is provided on the second bolt.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, the detachable single-sided bolt fastener can be used in conjunction with the positioning column and the limiting block by setting a limiting groove and a positioning groove at one end of the nut, and the bolt can be directly rotated by some rod-shaped tools, so as to facilitate the disassembly and assembly of the worn bolt, thereby improving the practicality and convenience of the entire bolt;

[0013] 2. Compared with the prior art, this detachable single-sided bolt fastener can cooperate with the second bolt by setting a screw hole, and the parts are fixed by drilling holes with a drill bit. The internal drill bit can be taken out and used multiple times, thereby solving the problem of a single fixing method.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a cross-sectional view of a nut of the present utility model.

[0018] Figure 3 It is a schematic diagram of the second bolt structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the screw hole structure of the utility model.

[0020] Legend:

[0021] 1. Nut; 2. First bolt; 3. Nut; 4. Limiting groove; 5. Limiting block; 6. Positioning column; 7. Positioning groove; 8. Cross groove; 9. Second bolt; 10. Connecting block; 11. Anti-slip sleeve; 12. Handle; 13. Drill bit; 14. Screw hole. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4 The utility model provides an embodiment of a detachable single-sided bolt fastener, including a first bolt 2, a nut 1 is fixedly connected to the upper end of the first bolt 2, a plurality of positioning grooves 7 are opened at the outer end of the nut 1, a limiting groove 4 is opened inside the positioning groove 7, a positioning column 6 is correspondingly arranged inside the positioning groove 7, the bottom of the positioning column 6 is fixedly connected to a limiting block 5, the limiting block 5 corresponds to the limiting groove 4, the other end of the positioning column 6 is fixedly connected to a connecting block 10, and the other end of the connecting block 10 is fixedly connected to a handle 12, the positioning column 6 and the limiting block 5 on the handle 12 are matched with the limiting groove 4 and the positioning groove 7 on the nut 1, and then the first bolt 2 is matched with the corresponding installation groove, and the outer handle 12 can be rotated to drive the first bolt 2 to rotate, so that the first bolt 2 is tightened. Therefore, the device can directly rotate the bolt through some rod-shaped tools, so as to achieve the effect of convenient disassembly and assembly of the worn bolt, thereby improving the practicality and convenience of the entire bolt;

[0024] The handle 12 is fixedly connected with an anti-slip cover 11, and the anti-slip effect of the entire handle 12 can be improved by providing the anti-slip cover 11;

[0025] The first bolt 2 is threadedly connected with a nut 3, and the nut 3 can cooperate with the first bolt 2 to improve the tightening effect thereof;

[0026] A screw hole 14 is provided inside the first bolt 2, and a second bolt 9 is threadedly connected to the inside of the screw hole 14. A drill bit 13 is fixedly connected to the lower end of the second bolt 9. A cross slot 8 is provided on the second bolt 9. When drilling and fixing are required, the second bolt 9 is first matched with the screw hole 14. Under the action of the threaded connection, the second bolt 9 can be installed inside the first bolt 2, and the cross slot 8 on the top can correspond to the screwdriver, so as to facilitate the installation of the second bolt 9. When in use, the drill bit 13 at the bottom can perform drilling operations, thereby improving the use effect of the entire bolt. After installation, the drill bit 13 can be taken out for multiple uses, thereby improving its practicality and convenience.

[0027] Working principle: When the device is in use, firstly, the positioning column 6 and the limit block 5 on the handle 12 are matched with the limit groove 4 and the positioning groove 7 on the nut 1, and then the first bolt 2 is matched with the corresponding installation groove. Rotating the outer handle 12 can drive the first bolt 2 to rotate, so that the first bolt 2 is used to achieve the tightening effect. When drilling and fixing are required, the second bolt 9 is first matched with the screw hole 14. Under the action of the threaded connection, the second bolt 9 can be installed inside the first bolt 2, and the cross groove 8 on the top can correspond to the screwdriver, so as to facilitate the installation of the second bolt 9. When in use, the drill bit 13 at the bottom can perform drilling operations, so as to improve the use effect of the entire bolt. After installation, the drill bit 13 can be taken out for multiple uses, thereby improving its practicality and convenience.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A detachable single-sided bolt fastener, comprising a first bolt (2), characterized in that: The upper end of the first bolt (2) is fixedly connected to a nut (1), the outer end of the nut (1) is provided with a plurality of positioning grooves (7), the interior of the positioning groove (7) is provided with a limiting groove (4), the interior of the positioning groove (7) is correspondingly provided with a positioning column (6), and the bottom of the positioning column (6) is fixedly connected to a limiting block (5); The limiting block (5) corresponds to the limiting groove (4); the other end of the positioning column (6) is fixedly connected to a connecting block (10); and the other end of the connecting block (10) is fixedly connected to a handle (12).

2. A detachable single-sided bolt fastener according to claim 1, characterized in that: An anti-slip sleeve (11) is fixedly connected to the handle (12).

3. A detachable single-sided bolt fastener according to claim 1, characterized in that: A nut (3) is threadedly connected to the first bolt (2).

4. A detachable single-sided bolt fastener according to claim 1, characterized in that: A screw hole (14) is provided inside the first bolt (2), and a second bolt (9) is threadedly connected inside the screw hole (14).

5. A detachable single-sided bolt fastener according to claim 4, characterized in that: A drill bit (13) is fixedly connected to the lower end of the second bolt (9), and a cross slot (8) is provided on the second bolt (9).

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