CN216657757U

CN216657757U - Screw anti-drop screwdriver

Info

Publication number: CN216657757U
Application number: CN202122982924.4U
Authority: CN
Inventors: 赵飞; 毋健雄; 张宝珍; 王伟伟; 张春雨; 许海强
Original assignee: Luoyang Institute of Electro Optical Equipment AVIC
Current assignee: Luoyang Institute of Electro Optical Equipment AVIC
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-03
Anticipated expiration: 2031-11-23

Abstract

The application provides a screw anti-drop screwdriver, which belongs to the technical field of screwdrivers and particularly comprises a handle, a screwdriver rod, a screwdriver head and a connecting rod, wherein the connecting rod penetrates through the screwdriver rod from the inside of the handle to the screwdriver head; reset assembly applys the power to tool bit one side to the connecting rod, makes the inner wall of wedge and wedge groove keep the lax state, and control portion control connecting rod moves to the handle side along cutter arbor length direction, drives the wedge and removes to wedge groove tip side, and the big tool bit that expands passes through the processing scheme of this application, and the tool bit inflation of screwdriver supports tight hexagon socket head cap screw, realizes the screw anticreep.

Description

Screw anti-drop screwdriver

Technical Field

The application relates to the field of screwdrivers, in particular to a screw anti-falling screwdriver.

Background

In the fastening process of parts of mechanical assembly, inner hexagonal screws are mostly used, and due to the fact that the inner structure of the assembly is complex, the number of parts and cables is large, many situations that a common inner hexagonal screwdriver cannot be normally used exist, for example, the cooperation between the screws and the screwdriver cannot be assisted by hands in a narrow space; when the screwdriver is screwed down, the screw cannot be fixed at the end part of the screwdriver, so that the screw falls into the working cavity; the socket head cap screws may slip and be unable to be disassembled after being used for many times.

SUMMERY OF THE UTILITY MODEL

In view of this, the application provides a screw anticreep screwdriver, has solved the problem among the prior art, and the tool bit of screwdriver expands, supports tight hexagon socket head cap screw, realizes the screw anticreep.

The application provides a screw anticreep screwdriver adopts following technical scheme:

a screw anti-drop screwdriver comprises a handle, a screwdriver rod, a screwdriver head and a connecting rod, wherein the connecting rod penetrates through the screwdriver rod from the inside of the handle to the screwdriver head;

the reset assembly applies force to one side of the tool bit to the connecting rod, the inner walls of the wedge-shaped block and the wedge-shaped groove are kept in a loose state, the control portion controls the connecting rod to move towards the handle side along the length direction of the tool bar to drive the wedge-shaped block to move towards the tip side of the wedge-shaped groove, and the tool bit expands.

Optionally, the control part is including setting up the button on the handle, the button runs through the handle lateral wall extends to the connecting rod, the button inboard is equipped with the sloping block, the sloping block is followed the handle is outside to inside to the setting of tool bit side slope, be equipped with on the connecting rod with the chute that the sloping block matches is followed the handle radial direction is pressed the button, the sloping block gets into the chute, the connecting rod to the handle lateral shifting.

Optionally, the button is provided with a plurality of the inclined blocks, the plurality of the inclined blocks are distributed along the length direction of the connecting rod, and the number of the inclined grooves is consistent with that of the inclined blocks.

Optionally, the reset assembly is a spring, a cavity for accommodating the spring is arranged in the handle, and the spring abuts against the end face of the connecting rod in the handle.

Optionally, through holes for the connecting rod to slide are formed in the handle and the cutter bar, a limiting table is arranged in the through holes, a limiting protrusion is arranged on the connecting rod and located on one side, back to the cutter head, of the limiting table, the reset assembly enables the limiting protrusion to tightly abut against the limiting table, and the tail end of the inclined block is aligned with the opening of the inclined groove.

Optionally, when the limiting protrusion abuts against the limiting table, the wedge-shaped block is hidden in the cutter head.

Optionally, a sliding hole for sliding the button is formed in the handle, the sliding hole is distributed along the radial direction of the handle, and the button slides along the sliding hole.

Optionally, the button includes a sliding portion and a pressing portion, the sliding portion enters the sliding hole and slides along the sliding hole, and the pressing portion exposes the sliding hole and is larger than the sliding hole.

To sum up, the application comprises the following beneficial technical effects:

reset assembly applys the power to tool bit one side to the connecting rod, the inner wall that makes wedge and wedge groove keeps the lax state, the tool bit of screwdriver this moment is in the lax state, the tool bit and the hexagon socket head cap screw of screwdriver keep lax relation, control portion control connecting rod moves to the handle side along cutter arbor length direction, drive the wedge to the removal of wedge groove tip side, the tool bit that expands, the tool bit after the inflation can support tight hexagon socket head cap screw, anticreep function when realizing screwdriver dismouting screw.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a screwdriver according to the present application;

fig. 2 is a schematic structural view of another view angle of the screwdriver of the present application.

Description of reference numerals: 1. a handle; 11. a slide hole; 2. a cutter bar; 21. a through hole; 22. a limiting table; 3. a cutter head; 31. a wedge-shaped groove; 4. a connecting rod; 41. a wedge block; 42. a limiting bulge; 5. a control unit; 6. a reset assembly; 7. a button; 71. a sliding part; 72. a pressing part; 8. a sloping block; 9. a chute.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

The embodiment of the application provides a screw anticreep screwdriver.

As shown in fig. 1 and 2, a screw anti-falling screwdriver comprises a handle 1, a cutter bar 2 and a screwdriver head 3, and is characterized by further comprising a connecting rod 4 which runs through the cutter bar 2 to the screwdriver head 3 from the inside of the handle 1, wherein a control part 5 is arranged on the handle 1, the connecting rod 4 is provided with a reset assembly 6 in the handle 1, a wedge-shaped groove 31 is formed in the screwdriver head 3, the connecting rod 4 enters the wedge-shaped groove 31, and one section of the connecting rod 4 which stretches into the wedge-shaped groove 31 is connected with a wedge block 41.

Wherein, reset assembly 6 applys the power to tool bit 3 one side to connecting rod 4, make the inner wall of wedge 41 and wedge groove 31 keep lax state, the tool bit 3 of screwdriver is in the state of relaxing this moment, the tool bit 3 and the interior hexagonal screw of screwdriver keep lax relation, control portion 5 control connecting rod 4 moves to handle 1 side along 2 length direction of cutter arbor, drive wedge 41 to the side removal of wedge groove 31 tip, the tool bit 3 that expands, tool bit 3 after the inflation can support tight interior hexagonal screw, anticreep function when realizing screwdriver dismouting screw.

Reset assembly 6 is the spring, is equipped with the cavity that holds the spring in the handle 1, and spring butt connecting rod 4 is located the terminal surface in the handle 1. The spring is in a compressed state in the cavity, and when the control part 5 does not apply acting force to the connecting rod 4, the spring always applies the action of moving the screwdriver head 3 to the connecting rod 4, so that the wedge block 41 and the shoe-shaped groove are kept in a loose state, and the screwdriver head 3 is kept in an original state.

Control part 5 is including setting up button 7 on handle 1, button 7 runs through 1 lateral wall of handle and extends to connecting

rod

4, 7 inboards of button are equipped with sloping block 8, sloping block 8 sets up to inclining to tool bit 3 in from handle 1 is outside to, be equipped with the chute 9 that matches with sloping block 8 on the connecting rod 4, press button 7 along 1 radial direction of handle, sloping block 8 gets into chute 9, connecting rod 4 moves to 1 side of handle, drive wedge 41 and support tight shoe type groove, the tool bit 3 of the screwdriver that expands.

The button 7 is provided with a plurality of inclined blocks 8, the plurality of inclined blocks 8 are distributed along the length direction of the connecting rod 4, and the number of the inclined grooves 9 is consistent with that of the inclined blocks 8.

Handle 1 and the inside through-hole 21 that supplies connecting rod 4 to slide that is equipped with of cutter arbor 2 are equipped with spacing platform 22 in the through-hole 21, are equipped with spacing arch 42 on the connecting rod 4, and spacing arch 42 is located one side that spacing platform 22 is back to tool bit 3, and reset assembly 6 makes spacing arch 42 support tight spacing platform 22, and the end of sloping block 8 is adjusted well with the opening of chute 9.

When the limiting protrusion 42 abuts against the limiting table 22, the wedge block 41 is hidden in the cutter head 3. The screwdriver head 3 can conveniently enter the head of the socket head cap screw.

The handle 1 is provided with a sliding hole 11 for the sliding of the button 7, the sliding holes 11 are distributed along the radial direction of the handle 1, and the button 7 slides along the sliding hole 11. The button 7 comprises a sliding part 71 and a pressing part 72, the sliding part 71 enters the sliding hole 11 and slides along the sliding hole 11, and the pressing part 72 is exposed out of the sliding hole 11 and is larger than the sliding hole 11, so that the button 7 is prevented from being clamped in the sliding hole 11.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A screw anti-drop screwdriver comprises a handle, a screwdriver rod and a screwdriver head and is characterized by further comprising a connecting rod penetrating through the screwdriver rod from the inside of the handle to the screwdriver head, wherein a control part is arranged on the handle, a reset component is arranged in the handle through the connecting rod, a wedge-shaped groove is formed in the screwdriver head, the connecting rod enters the wedge-shaped groove, and a section, extending into the wedge-shaped groove, of the connecting rod is connected with a wedge block;

2. The screw thread-off prevention screwdriver according to claim 1, wherein the control part comprises a button arranged on a handle, the button extends to the connecting rod through the side wall of the handle, an inclined block is arranged on the inner side of the button, the inclined block is arranged in an inclined manner from the outside to the inside of the handle to the side of the screwdriver head, an inclined groove matched with the inclined block is arranged on the connecting rod, the button is pressed along the radial direction of the handle, the inclined block enters the inclined groove, and the connecting rod moves towards the side of the handle.

3. The screw retaining screwdriver according to claim 2, wherein a plurality of the inclined blocks are arranged on the button, the plurality of the inclined blocks are distributed along the length direction of the connecting rod, and the number of the inclined grooves is consistent with that of the inclined blocks.

4. The screw retaining screwdriver of claim 1, wherein the return assembly is a spring, a cavity is formed in the handle for accommodating the spring, and the spring abuts against an end face of the connecting rod in the handle.

5. The screw anti-loosening screwdriver according to claim 2, wherein a through hole for the connecting rod to slide is formed in the handle and the screwdriver rod, a limiting table is arranged in the through hole, a limiting protrusion is arranged on the connecting rod and located on one side, back to the screwdriver head, of the limiting table, the resetting component enables the limiting protrusion to abut against the limiting table, and the tail end of the inclined block is aligned with the opening of the inclined groove.

6. The screw thread-off prevention screwdriver according to claim 5, wherein when the limiting protrusion abuts against the limiting table, the wedge-shaped block is hidden in the screwdriver head.

7. The screw anti-drop screwdriver according to claim 2, wherein the handle is provided with slide holes for the sliding of the button, the slide holes are distributed along the radial direction of the handle, and the button slides along the slide holes.

8. The screw drop-off prevention screwdriver according to claim 7, wherein the button comprises a sliding portion and a pressing portion, the sliding portion enters the sliding hole and slides along the sliding hole, and the pressing portion is exposed out of the sliding hole and larger than the sliding hole.