阅读说明：本技术 一种新型手动螺丝刀 (Novel manual screwdriver ) 是由 张光彦 唐福建 任大亮 于 2021-09-23 设计创作，主要内容包括：本发明公开了一种新型手动螺丝刀,包括壳体以及可转动设置于壳体内部的转轴,所述转轴底部连接有刀头连接杆,转轴顶部设置有用于驱动转轴正转和\或反转转动的齿轮驱动组件。本发明通过齿轮驱动组件对转轴进行驱动,可明显提高手动螺丝批的操作性能,快捷而省力,尺寸小巧便于携带。(The invention discloses a novel manual screwdriver which comprises a shell and a rotating shaft rotatably arranged in the shell, wherein the bottom of the rotating shaft is connected with a screwdriver head connecting rod, and the top of the rotating shaft is provided with a gear driving assembly for driving the rotating shaft to rotate positively and/or negatively. The gear driving assembly drives the rotating shaft, so that the operating performance of the manual screwdriver can be obviously improved, and the gear driving assembly is quick and labor-saving, small in size and convenient to carry.)

1. The utility model provides a novel manual screwdriver which characterized in that, includes casing and the rotatable pivot that sets up in the casing inside, the pivot bottom is connected with the tool bit connecting rod, and the pivot top is provided with and is used for driving pivot corotation and/or reversal pivoted gear drive subassembly.

2. The novel manual screwdriver of claim 1, wherein:

gear drive assembly is including pressing down pole, straight-teeth gear, big bevel gear and first bevel gear, first bevel gear cover is established on the lateral wall at pivot top, big bevel gear is connected with first bevel gear meshing, the straight-teeth gear rotationally sets up on big bevel gear through one-way bearing, press down the pole bottom to be provided with straight-teeth gear matched with pivoted rack, press down pole portion salient outside the casing.

3. The novel manual screwdriver of claim 1, wherein:

the bevel gear mechanism is characterized by further comprising a second bevel gear, the second bevel gear and the first bevel gear are arranged in opposite directions, a switch assembly is arranged on the rotating shaft, the switch assembly is located between the first bevel gear and the second bevel gear and can move up and down on the rotating shaft, and therefore the large bevel gear can be in meshing connection with the first bevel gear and the second bevel gear in a switching mode.

4. The novel manual screwdriver of claim 1, wherein:

the switch assembly comprises an external member and a switch block, wherein the switch block is movably arranged on the shell, the external member is sleeved on the rotating shaft, an annular groove is formed in the external member, and an inserting strip used for extending into the annular groove is arranged on one side of the switch block facing the external member.

5. The novel manual screwdriver of claim 2, wherein:

still include reset spring, reset spring one end with press the depression bar butt, the other end and casing butt.

6. The novel manual screwdriver of claim 1, wherein:

the rotating shaft is rotatably arranged in the shell through a bearing.

7. The novel manual screwdriver of claim 4, wherein:

the switch block is provided with a convex block so as to be convenient for a user to push up and down.

Technical Field

The invention relates to the technical field of screwdrivers, in particular to a novel manual screwdriver.

Background

The electric screw driver in the market at present is large in size and heavy, is connected by a power line, can work only by switching on the power supply, and is inconvenient to carry and use; the common manual screwdriver is rotated to tighten or loosen the screw, the screw is rotated for at most 1 circle each time, and one screw needs to be rotated for a plurality of circles, so that time and labor are wasted.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a novel manual screwdriver.

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a novel manual screwdriver, includes the casing and can rotate the pivot that sets up in the casing inside, the pivot bottom is connected with the tool bit connecting rod, and the pivot top is provided with and is used for driving pivot corotation and/or reversal pivoted gear drive assembly.

As a further improvement of the present invention, the gear driving assembly includes a pressing rod, a straight gear, a large bevel gear and a first bevel gear, the first bevel gear is sleeved on an outer side wall of the top of the rotating shaft, the large bevel gear is engaged with the first bevel gear, the straight gear is rotatably disposed on the large bevel gear through a one-way bearing, a rack that is matched with the straight gear to rotate is disposed at the bottom of the pressing rod, and the pressing rod protrudes out of the housing.

As a further improvement of the invention, the bevel gear mechanism further comprises a second bevel gear, the second bevel gear is arranged opposite to the first bevel gear, a switch assembly is arranged on the rotating shaft, and the switch assembly is positioned between the first bevel gear and the second bevel gear and can move up and down on the rotating shaft so that the large bevel gear can be in switching meshing connection with the first bevel gear and the second bevel gear.

As a further improvement of the invention, the switch assembly comprises an external member and a switch block, the switch block is movably arranged on the housing, the external member is sleeved on the rotating shaft, the external member is provided with an annular groove, and one side of the switch block facing the external member is provided with an insertion strip which can extend into the annular groove.

As a further improvement of the present invention, the pressing device further includes a return spring, one end of which abuts against the pressing lever and the other end of which abuts against the housing.

As a further improvement of the present invention, the rotating shaft is rotatably disposed in the housing through a bearing.

As a further improvement of the invention, the switch block is provided with a convex block so as to be convenient for a user to push up and down.

The invention has the advantages of

Compared with the prior art, the invention has the advantages that:

the gear driving assembly drives the rotating shaft, so that the operating performance of the manual screwdriver can be obviously improved, and the gear driving assembly is quick and labor-saving, small in size and convenient to carry.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the present invention showing the structure thereof disassembled.

FIG. 3 is a schematic view of another structure of the present invention taken apart

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1 to 3, a novel manual screwdriver includes a casing 1 and a rotating shaft 2 rotatably disposed in the casing 1 through a bearing, a tool bit connecting rod 21 is connected to the bottom of the rotating shaft 2, and a gear driving assembly for driving the rotating shaft 2 to rotate forward and/or backward is disposed at the top of the rotating shaft 2. The invention drives the rotating shaft 2 through the gear driving component, can obviously improve the operating performance of the manual screwdriver, is quick and labor-saving, and has small size and convenient carrying.

Further, gear drive assembly is including pressing pole 31, straight-teeth gear 32, big bevel gear 33 and first bevel gear 34, first bevel gear 34 cover is established on the lateral wall at 2 tops of pivot, big bevel gear 33 is connected with first bevel gear 34 meshing, straight-teeth gear 32 rotationally sets up on big bevel gear 33 through one-way bearing 36, it is provided with and cooperatees pivoted rack 37 with straight-teeth gear 32 to press pole 31 bottom, press pole 31 part salient outside casing 1.

Further, the bevel gear assembly further comprises a second bevel gear 35, the second bevel gear 35 is arranged opposite to the first bevel gear 34, a switch assembly is arranged on the rotating shaft 2, and the switch assembly is located between the first bevel gear 34 and the second bevel gear 35 and can move up and down on the rotating shaft 2 so that the large bevel gear 33 can be in switching engagement connection with the first bevel gear 34 and the second bevel gear 35.

Further, the switch assembly includes a kit 41 and a switch block 42, the switch block 42 is movably disposed on the housing 1, the kit 41 is sleeved on the rotating shaft 2, an annular groove 43 is disposed on the kit 41, and an insertion strip 44 for extending into the annular groove 43 is disposed on one side of the switch block 42 facing the kit 41. The switch block 42 is provided with a protrusion for the user to push up and down.

Further, the device further comprises a return spring 5, wherein one end of the return spring 5 is abutted with the pressing rod 31, and the other end of the return spring is abutted with the shell 1.

The working principle of the invention is as follows: the pressing rod 31 is pressed, the rack 37 drives the straight gear 32 to rotate, the straight gear 32 drives the large bevel gear 33 to rotate through the one-way bearing 36, the large bevel gear 33 drives the first bevel gear 34 to rotate, the rotating shaft 2 is driven to rotate clockwise, and at the moment, a screw is screwed by a screw driver; the pressing rod 31 is released, the pressing rod 31 moves upwards in a resetting way under the action of the resetting spring 5, at the moment, the straight gear 32 rotates reversely under the driving of the rack 37, but the large bevel gear 33 does not rotate under the action of the one-way bearing 36;

when the switch block 42 is driven to the upper side, the large bevel gear 33 is meshed with the bevel gear, the pressing rod 31 is pressed, the rack 37 drives the straight gear 32 to rotate, the straight gear 32 drives the large bevel gear 33 to rotate through the one-way bearing 36, the large bevel gear 33 drives the second bevel gear 35 to rotate, the rotating shaft 2 is driven to rotate anticlockwise, and the screwdriver looses screws; when the pressing rod 31 is released, the pressing rod 31 moves upwards in a resetting way under the action of the return spring 5, and the spur gear 32 rotates reversely under the drive of the rack 37, but the large bevel gear 33 does not rotate under the action of the one-way bearing 36. In the above-mentioned forward and reverse rotation operation, the rotating shaft 2 can rotate 4-5 turns per one pressing.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.