Clamping and fixing type anti-loosening screwdriver bit

Abstract

The utility model relates to the technical field of screwdriver bits, in particular to a clamping and fixing type anti-loosening screwdriver bit which comprises a screwdriver bit main body, the screwdriver bit main body comprises a front screwdriver bit and a rear screwdriver handle, an upper clamping cross is integrally arranged above the front screwdriver bit, a lower inserting cross groove corresponding to the upper clamping cross is integrally formed in the bottom of the rear screwdriver handle, and the lower inserting cross groove corresponds to the lower clamping cross. The lower inserting cross-shaped groove and the upper clamping cross-shaped frame are mutually clamped, and an outer clamping hoop is arranged outside the upper clamping cross-shaped frame and the lower inserting cross-shaped groove in a surrounding and clamping mode. According to the utility model, the quick clamping, fixing, assembling and replacing can be conveniently carried out as required, the front screwdriver head and the rear screwdriver handle can be conveniently butted under the mutual clamping and assembling of the lower inserting cross groove and the upper clamping cross frame, and then the outer clamping hoop is used for limiting and clamping, so that the clamping and assembling are more convenient, and the quick clamping and assembling can be conveniently carried out as required; and assembly and use are more stable, and loosening is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bit heads, in particular to a clamping type anti-loosening screwdriver bit head. Background Technique

[0002] As the modern era of mechanized development, screws are widely used, and wrenches, screwdrivers, etc. used to assemble screws are also constantly changing and evolving. The emergence of electric screwdrivers has greatly changed the manual assembly mode and reduced the labor intensity. In modern industry and daily life, as an important tool accessory, screwdriver bits are widely used in many fields such as mechanical assembly, electronic equipment maintenance, and furniture assembly. With the continuous progress of technology and the rapid development of the manufacturing industry, the performance and function requirements for screwdriver bits are also increasing day by day. Electric screwdrivers and screwdriver bits are used in combination;

[0003] In this regard, Chinese Patent Application No.: CN201821261137.2 discloses a screwdriver bit, which includes a first end and a second end. The first end is installed on an electric screwdriver. The second end is provided with a protruding portion that matches the groove shape of the screw head. A total air flow channel is axially opened inside the screwdriver bit, and the total air flow channel is connected to a vacuum pumping device. A plurality of adsorption holes are opened around the protruding portion on the end face of the second end, and the adsorption holes are connected to the total air flow channel through branch air flow channels;

[0004] However, most of the existing screwdriver bits are integrally formed or assembled in combination, which is inconvenient for quick clamping and fixing assembly and replacement according to needs, and is easy to cause falling off and damage, affecting the use effect;

[0005] Therefore, in order to solve the above problems, a clamping type anti-loosening screwdriver bit head is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a clamping type anti-loosening screwdriver bit head to solve the problems in the above background technique that most of the existing screwdriver bits are integrally formed or assembled in combination, which is inconvenient for quick clamping and fixing assembly and replacement according to needs, and is easy to cause falling off and damage, affecting the use effect.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A clamping type anti-loosening screwdriver bit head includes a bit head main body. The bit head main body is composed of a front bit head and a rear bit handle. An upper clamping cross is integrally provided above the front bit head. A lower inserting cross groove corresponding to the upper clamping cross is integrally provided at the bottom of the rear bit handle, and the lower inserting cross groove and the upper clamping cross are clamped with each other. An outer clamp is clamped around the outer parts of the upper clamping cross and the lower inserting cross groove.

[0008] As a further improvement of this solution, a transition seat is integrally provided between the upper clamping cross and the front bit, and limiting grooves are evenly formed in the upper part of the outer wall of the rear bit handle.

[0009] As a further improvement of this solution, a limiting outer ring is integrally provided on the outer wall of the middle part of the rear bit handle, and a magnetic attracting ring piece is fixedly arranged on the surface of the limiting outer ring.

[0010] As a further improvement of this solution, the outer clamp is arranged in a U shape, and an arc-shaped inner hook is integrally provided at the open end of the outer clamp. Limiting clamp grooves corresponding to the outer clamp are formed in the side walls of the lower inserting cross groove and the upper clamping cross.

[0011] As a further improvement of this solution, a lower inserting rod is integrally provided at the bottom of the side corner of the lower inserting cross groove, and a lower groove inner groove corresponding to the lower inserting rod is formed in the bottom side of the upper clamping cross.

[0012] As a further improvement of this solution, an upper clamping block is integrally provided at the center of the top of the upper clamping cross, and an upper clamping groove corresponding to the upper clamping block is formed in the inner wall of the upper end of the lower inserting cross groove.

[0013] As a further improvement of this solution, the top view cross section of the upper clamping block is hexagonal, and the inner wall of the upper clamping groove is also hexagonal.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is convenient for quick clamping and fixing assembly and replacement according to needs, so that the use effect is better and more convenient;

[0015] 1. By providing a lower inserting cross groove and an upper clamping cross, the present utility model facilitates the docking of the front bit and the rear bit handle under the mutual clamping and assembly of the lower inserting cross groove and the upper clamping cross. Subsequently, the outer clamp is used for limiting clamping, making the clamping assembly more convenient, facilitating quick clamping assembly according to needs, making the assembly and use more stable, and preventing loosening. Through this design, the convenience and practicality of the snap-on anti-loosening screwdriver bit are improved.

[0016] 2. By providing a front bit and a rear bit handle, under the above cooperation, the assembly of the front bit and the rear bit handle is facilitated, so that the bit body is convenient for modular combination assembly, facilitating timely replacement and maintenance in case of subsequent damage, avoiding waste caused by inability to use due to partial damage, facilitating savings, and making the use more convenient. Through this design, the convenience and practicality of the snap-on anti-loosening screwdriver bit are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front three-dimensional schematic view of the overall structure of the present utility model;

[0018] Figure 2 is a bottom three-dimensional schematic view of the overall structure of the present utility model;

[0019] Figure 3 This is the side view three - dimensional assembly explosion diagram of the structure of the present utility model;

[0020] Figure 4 This is the side view sectional three - dimensional schematic diagram of the structure of the present utility model;

[0021] Figure 5 This is the top view sectional three - dimensional schematic diagram of the structure of the present utility model;

[0022] In the figure: 100, bit body; 110, front bit; 120, rear bit shank; 121, limiting groove; 130, lower inserted cross groove; 131, lower inserted rod; 132, inner groove of the lower groove; 140, upper clamping cross; 141, transition seat; 142, upper clamping block; 143, upper clamping groove; 150, outer clamp; 151, limiting clamp groove; 160, limiting outer ring; 161, magnetic attraction ring piece. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0025] A clamping - type anti - loosening screwdriver bit, including a bit body 100. The bit body 100 is composed of a front bit 110 and a rear bit shank 120. An upper clamping cross 140 is integrally provided above the front bit 110. A lower inserted cross groove 130 corresponding to the upper clamping cross 140 is integrally provided at the bottom of the rear bit shank 120. The lower inserted cross groove 130 and the upper clamping cross 140 are mutually clamped, and an outer clamp 150 is externally surrounded and clamped on the upper clamping cross 140 and the lower inserted cross groove 130;

[0026] More specifically in this embodiment, a transition seat 141 is integrally provided between the upper clamping cross 140 and the front bit 110. Limiting grooves 121 are evenly formed on the upper part of the outer wall of the rear bit shank 120. Through this design, it is convenient for the docking and assembly of the rear bit shank 120 and the front bit 110, and when the rear bit shank 120 is inserted into the electric bit seat, it is convenient to perform limiting clamping through the limiting grooves 121, which is convenient for subsequent stable use;

[0027] More specifically in this embodiment, a limiting outer ring 160 is integrally provided on the outer wall of the middle part of the rear handle 120, and a magnetic attraction ring piece 161 is fixedly provided on the surface of the limiting outer ring 160. Through this design, it is convenient to carry out mutual limiting support and magnetic attraction with the electric screwdriver after assembly and combination, making the assembly more firm and avoiding falling off;

[0028] More specifically in this embodiment, the outer clamp 150 is arranged in a U shape, and an arc-shaped inner hook is integrally provided at the open end of the outer clamp 150. A limiting clamp groove 151 corresponding to the outer clamp 150 is provided on the side walls of the lower insertion cross groove 130 and the upper clamping cross 140. Through this design, it is convenient to carry out limiting fastening after the lower insertion cross groove 130 and the upper clamping cross 140 are clamped and butted against each other, avoiding loosening during subsequent use. And in the U-shaped setting, with the assistance of the inner hook, the clamping is made more firm, and it is also convenient for subsequent quick disassembly, making the subsequent replacement operation more convenient;

[0029] More specifically in this embodiment, a lower insertion rod 131 is integrally provided at the bottom of the side corner of the lower insertion cross groove 130, and a lower groove inner groove 132 corresponding to the lower insertion rod 131 is provided at the bottom side of the upper clamping cross 140. Through this design, it is convenient for the limiting insertion assembly of the side of the lower insertion cross groove 130 and the bottom of the upper clamping cross 140, so that the bottom will not fork due to force after clamping, making the limiting clamping assembly more stable and firm;

[0030] More specifically in this embodiment, an upper clamping block 142 is integrally provided at the center of the top of the upper clamping cross 140, and an upper clamping groove 143 corresponding to the upper clamping block 142 is provided on the inner wall of the upper end of the lower insertion cross groove 130. Through this design, it is convenient for the mutual insertion and limitation of the top of the upper clamping cross 140 and the inner top wall of the lower insertion cross groove 130, and it is also convenient for the relative stability of the upper end of the upper clamping cross 140 and the upper end of the lower insertion cross groove 130 after clamping and combination, making the use more stable;

[0031] More specifically in this embodiment, the top view cross section of the upper clamping block 142 is hexagonal, and the inner wall of the upper clamping groove 143 is also hexagonal. Through this design, it is convenient for the positioning and clamping of the upper clamping block 142 and the upper clamping groove 143, making the clamping force more stable during rotation and making the use more convenient.

[0032] Working principle: When assembling and using, the rear bit shank 120 is inserted and assembled inside the rotating output end seat body of the electric screwdriver in cooperation with the limit groove 121, which is convenient for subsequent transmission and rotation. At the same time, it is assisted in supporting and limiting under the cooperation of the limit outer ring 160 and the magnetic attraction ring piece 161. At the same time, under the action of magnetism, it is convenient for attraction and adsorption, enhancing stability and not easy to fall off. Further, under the cooperation of the downwardly inserted cross groove 130 and the upwardly clamped cross 140, the lower end of the rear bit shank 120 and the upper end of the front bit head 110 are clamped and assembled with each other. When inserting, through the cooperation of the downwardly inserted rod 131 and the inner groove 132 of the lower groove, the bottom of the downwardly inserted cross groove 130 and the bottom of the upwardly clamped cross 140 are mutually limited. Similarly, under the cooperation of the upwardly clamped block 142 and the upwardly clamped groove 143, it is limited and clamped, making the subsequent rotational transmission force more stable and not easy to cause warping due to force. And after assembly, through the opening of the limit hoop groove 151, under the surrounding clamping of the outer clamp 150, it is convenient for limiting the downwardly inserted cross groove 130 and the upwardly clamped cross 140. At the same time, with the setting of the inner hook, it is convenient for the relevant fastening after clamping and also convenient for subsequent disassembly. After using for a period of time, the front bit head 110 or the rear bit shank 120 can be disassembled and replaced according to needs, making the use more convenient and not easy to cause waste due to local damage and inability to use, making the use more economical. The operation ends here.

[0033] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technical personnel in this industry can smoothly implement the present invention according to the instructions in the drawings and the above description; however, any slight changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A clamping type anti-loosening screwdriver bit, comprising a bit body (100), characterized in that: The bit body (100) comprises a front bit (110) and a rear bit shank (120). An upper clamping cross (140) is integrally provided above the front bit (110). A lower inserting cross groove (130) corresponding to the upper clamping cross (140) is integrally provided at the bottom of the rear bit shank (120), and the lower inserting cross groove (130) and the upper clamping cross (140) are engaged with each other. An outer clamp (150) is clamped around the outer parts of the lower inserting cross groove (130) and the upper clamping cross (140).

2. The screw bit with a clamping type for preventing loosening and detachment according to claim 1, wherein: A transition seat (141) is integrally provided between the upper clamping cross (140) and the front bit (110). Limiting grooves (121) are evenly formed in the upper part of the outer wall of the rear bit shank (120).

3. The screwdriver bit with a clamping and anti-loosening structure according to claim 1, characterized in that: A limiting outer ring (160) is integrally provided on the outer wall of the middle part of the rear bit shank (120), and a magnetic attracting ring piece (161) is fixedly provided on the surface of the limiting outer ring (160).

4. A clamping type anti-loosening screwdriver bit according to claim 1, wherein: The outer clamp (150) is U-shaped, and an arc-shaped inner hook is integrally provided at the open end of the outer clamp (150). Limiting clamp grooves (151) corresponding to the outer clamp (150) are formed in the side walls of the lower inserting cross groove (130) and the upper clamping cross (140).

5. A clamping type anti-loosening screwdriver bit according to claim 1, characterized in that: A lower inserting rod (131) is integrally provided at the bottom of the side corner of the lower inserting cross groove (130), and a lower groove inner groove (132) corresponding to the lower inserting rod (131) is formed at the bottom side of the upper clamping cross (140).

6. The screwdriver bit with a clamping and anti-loosening structure according to claim 1, wherein: An upper clamping block (142) is integrally provided at the center of the top of the upper clamping cross (140), and an upper clamping groove (143) corresponding to the upper clamping block (142) is formed in the inner wall of the upper end of the lower inserting cross groove (130).

7. The screwdriver bit with a clamping and anti-loosening structure according to claim 6, characterized in that: The top view cross section of the upper clamping block (142) is hexagonal, and the inner wall of the upper clamping groove (143) is also inner hexagonal.

Images