CN214519859U

CN214519859U - Screwdriver

Info

Publication number: CN214519859U
Application number: CN202120300982.1U
Authority: CN
Inventors: 余斯义
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-29
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a screwdriver, including back nail seat, movable part and lead screw. And the rear nail seat is provided with a sliding groove extending along the axial direction and the circumferential direction of the rear nail seat. The movable member is slidably coupled to the chute. The screw rod is connected with the movable part. The rear screw seat can move along the axis direction of the screw rod so as to drive the movable part to drive the screw rod to rotate. The screwdriver of this application strikes the back through outside helping hand, can drive the lead screw and rotate to twist rusty, the dead screw of stinging, make it loosen convenient to detach.

Description

Screwdriver

Technical Field

The utility model relates to a hand tool technical field, specific theory relates to a screwdriver.

Background

For some rusty and seized screws, the screws are difficult to disassemble, and the screws cannot be easily screwed out by a common screwdriver. The screw rod and the handle of an ordinary screwdriver are fixedly connected and cannot rotate relatively, the screwdriver head on the screw rod vertically abuts against the screw, when the screwdriver is hammered by an iron hammer, the stress of the screwdriver is perpendicular to the operating surface, a small amount of force applied by the iron hammer is converted into torque force along the circumferential direction, and therefore in actual operation, the screw is very hard to disassemble, and an operator experiences poor experience.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a screwdriver strikes the back through outside helping hand, can drive the lead screw and rotate, convenient to detach screw.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

a screwdriver, comprising:

the rear nail seat is provided with sliding chutes extending along the axial direction and the circumferential direction of the rear nail seat;

a movable member slidably coupled to the chute;

the screw rod is connected with the movable part;

the rear screw seat can move along the axis direction of the screw rod so as to drive the movable part to drive the screw rod to rotate.

Optionally, the rear nail seat comprises a cylindrical wall and a nail cover part closing one end of the cylindrical wall;

the chute is arranged on the wall of the cylinder; the sliding groove is provided with a straight groove extending along the axial direction of the cylindrical wall and a spiral groove connected with the straight groove.

Optionally, the ratio of the extension length of the sliding groove along the circumferential direction of the rear nail seat to the perimeter of the rear nail seat is (5-20): (360).

Optionally, at least two sliding grooves are formed in the rear nail seat, and the sliding grooves are uniformly distributed along the circumferential direction of the rear nail seat;

the movable part is arranged in the rear nail seat, and corresponding insertion parts are respectively arranged corresponding to the sliding grooves.

Optionally, the rear nail seat is provided with two sliding grooves, the movable part is rod-shaped, a through groove is formed in the end of the screw rod, the movable part penetrates through the through groove, and two ends of the movable part are respectively inserted into the two sliding grooves.

Optionally, the screwdriver further comprises an elastic component, and the elastic component is arranged between the rear nail seat and the screw rod in a compression mode.

Optionally, be provided with spacing convex part along radial protrusion on the screw pole, elastomeric element includes the spring, the spring housing is established on the screw pole, the both ends of spring support respectively and are in spacing convex part with on the back nail seat.

Optionally, the screwdriver further comprises an elastic sleeve body, and the elastic sleeve body is sleeved on the rear screw seat and the part of the screw rod.

Optionally, a convex rib is arranged on the rear nail seat, and the convex rib is in limit fit with the elastic sleeve body to limit the rotation of the rear nail seat in the circumferential direction.

Optionally, the elastic sleeve body deviates from the mouth part of one end of the rear nail seat and a rubber sleeve is arranged between the screw rods, and the screw rods are matched with the rubber sleeve in a relatively rotatable manner.

By adopting the technical scheme, make the utility model discloses following beneficial effect has:

the screwdriver of this application strikes the back through outside helping hand, can drive the lead screw and rotate to twist rusty, the dead screw of stinging, make it loosen convenient to detach.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural view of a screwdriver provided by the present invention;

fig. 2 is a schematic view of a plurality of components in the screwdriver according to the present invention.

In the figure, 100, a screwdriver; 1. a cylindrical wall; 11. a straight groove; 12. a helical groove; 13. a rib is protruded; 2. a nail cover part; 3. a movable part; 4. an elastic member; 5. a screw shaft; 51. a limiting convex part; 6. an elastic sleeve body; 7. and (4) a rubber sleeve.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or component to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the present embodiment provides a screwdriver 100 including a rear seat, a movable member 3 and a screw shaft 5. The rear nail seat is provided with a sliding groove extending along the axial direction and the circumferential direction. The movable part 3 is slidably connected to the slide groove. A lead screw 5 is connected to the movable part 3. The back nail seat can follow the axis direction of lead screw 5 removes to the drive movable part 3 drives lead screw 5 is rotatory. The screwdriver 100 of the application can drive the screw rod 5 to rotate after knocking the rear nail seat through the external power assistance, so as to twist rusty and seized screws, loosen the screws and facilitate the disassembly. It should be noted that, in the present application, a screwdriver is disposed at an end of the lead screw 5 away from the movable component 3, and the screwdriver may be in a shape of a straight line, a cross, or other shapes, which is not limited herein.

The rear nail seat comprises a cylindrical wall 1 and a nail cover part 2 for closing one end of the cylindrical wall 1. The hammer can be directly hit on the nail cover part 2.

The chute is arranged on the cylinder wall 1. The runner has a straight groove 11 extending in the axial direction of the cylindrical wall 1 and a spiral groove 12 connecting the straight groove 11. The straight slot 11 is designed to facilitate the operation of the screwdriver 100 without rotating the lead screw 5 when twisting a conventional rusty screw without seizing.

Wherein, the ratio of the extension length of the chute along the circumferential direction of the rear nail seat, namely the cylindrical wall 1, to the perimeter of the rear nail seat, namely the cylindrical wall 1, is (5-20): (360). Within the parameter design range, the twisting angle of the lead screw 5 is moderate, and a good knob effect can be achieved. Most preferably, the ratio of the extension length of the sliding groove along the circumferential direction of the rear nail seat to the circumference of the rear nail seat is (12): (360) i.e. the lead screw 5 can be turned 12.

The rear nail seat is at least provided with two sliding grooves, and the sliding grooves are uniformly distributed along the circumferential direction of the cylindrical wall 1. The movable part 3 is arranged in the rear nail seat, and corresponding insertion parts are respectively arranged corresponding to the sliding grooves.

Exemplarily, the rear nail seat is provided with two sliding grooves, the movable component 3 is rod-shaped, the end of the screw rod 5 is provided with a through groove, the movable component 3 penetrates through the through groove, and two ends of the movable component 3 are respectively inserted into the two sliding grooves.

The screwdriver 100 further comprises a resilient member 4, said resilient member 4 being arranged in compression between said rear seat and said lead screw 5. Through the arrangement of the elastic part 4, the rear nail seat can be pushed, so that the movable part 3 slides into the straight groove 11, and the screwdriver 100 is convenient to disassemble or install ordinary screws which are not clamped. The elastic member 4 is provided to facilitate the screw 5 to be maintained at the initial rotation position, facilitating the operation.

The screw rod 5 is provided with a limiting convex part 51 along the radial direction in a protruding mode, the elastic part 4 comprises a spring, the spring sleeve is arranged on the screw rod 5, and two ends of the spring respectively abut against the limiting convex part 51 and the rear nail seat.

The screwdriver 100 further comprises an elastic sleeve body 6, wherein the elastic sleeve body 6 is sleeved on the rear screw seat and part of the screw rod 5. The elastic sleeve body 6 is designed to be convenient for hands to hold. In addition, the elastic sleeve body 6 is connected with the rear nail seat, when an iron hammer is hammered on the rear nail seat, the rear nail seat moves, and the elastic sleeve body 6 is elastically compressed by the rear nail seat and can be elastically reset.

The rear nail seat is provided with a convex rib 13, the convex rib 13 is in limit fit with the elastic sleeve body 6 to limit the rotation of the rear nail seat in the circumferential direction, so that the relative rotation of the rear nail seat and the elastic sleeve body 6 is prevented.

The elastic sleeve body 6 deviates from the opening part of one end of the rear screw seat and a rubber sleeve 7 is arranged between the screw rods 5, the screw rods 5 are matched with the rubber sleeve 7 in a relatively rotating mode, and rotation of the screw rods 5 is not interfered.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.

Claims

1. A screwdriver, comprising:

a movable member slidably coupled to the chute;

the screw rod is connected with the movable part;

2. The driver of claim 1 wherein said rear seat includes a cylindrical wall and a cap portion closing one end of said cylindrical wall;

3. The screwdriver according to claim 1, wherein the ratio of the extension length of the sliding groove along the circumferential direction of the rear nail seat to the circumference of the rear nail seat is (5-20): (360).

4. The screwdriver according to claim 1, wherein at least two sliding grooves are formed in the rear nail seat, and are uniformly distributed along the circumferential direction of the rear nail seat;

5. The screwdriver according to claim 1, wherein the rear nail seat is provided with two sliding grooves, the movable member is rod-shaped, the end of the screw rod is provided with a through groove, the movable member penetrates through the through groove, and two ends of the movable member are respectively inserted into the two sliding grooves.

6. The screwdriver as recited in claim 1, further comprising a resilient member disposed in compression between said rear seat and said lead screw.

7. The screwdriver according to claim 6, wherein the screw rod is provided with a limiting convex portion in a radial direction in a protruding manner, the elastic component comprises a spring, the spring is sleeved on the screw rod, and two ends of the spring respectively abut against the limiting convex portion and the rear screw seat.

8. The screwdriver as claimed in claim 1, further comprising an elastic sleeve, wherein the elastic sleeve is sleeved on the rear screw seat and a part of the screw rod.

9. The screwdriver as claimed in claim 8, wherein the rear nail seat is provided with a rib, and the rib is in limit fit with the elastic sleeve body to limit the rotation of the rear nail seat in the circumferential direction.

10. The screwdriver as claimed in claim 8, wherein a rubber sleeve is disposed between the screw shaft and the mouth of the end of the elastic sleeve body facing away from the rear nail seat, and the screw shaft and the rubber sleeve can be engaged with each other in a relatively rotatable manner.