CN218776507U

CN218776507U - Length adjustable screwdriver

Info

Publication number: CN218776507U
Application number: CN202222663645.6U
Authority: CN
Inventors: 徐大震
Original assignee: Jining Zhongshan Public Utilities Water Co ltd
Current assignee: Jining Zhongshan Public Utilities Water Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-31
Anticipated expiration: 2032-10-11

Abstract

A length-adjustable screwdriver is composed of a screw rod, a screwdriver head and a handle. The front end of the screw rod is provided with a cutter head, and the outer surface of the rear rod body of the screw rod is provided with threads. The front end of the handle is provided with a slot extending backwards, and the handle is inserted into the screw rod through the slot. The inner wall of the slot is provided with a positioning sliding block, the lead screw is provided with a positioning sliding groove, and the positioning sliding block is arranged in the positioning sliding groove. The screw rod is screwed with an adjusting nut which is connected with a pipe joint, and the pipe joint is sleeved at the front end of the handle. The inner wall of the pipe joint is provided with a connecting ring, the handle is provided with an annular groove, and the connecting ring is arranged in the annular groove. The pipe joint is provided with a through hole, the handle is provided with a positioning jack, a positioning bolt is inserted into the through hole, and the positioning bolt penetrates through the through hole and can be inserted into the positioning jack. A novel screwdriver with adjustable length, its reasonable in design, simple structure, ingenious, convenient to use, the bulk strength of screw pole is higher, is difficult for the bending, warp, can effectively promote staff's operating efficiency.

Description

Length adjustable screwdriver

Technical Field

The utility model relates to an electric power tool especially relates to a novel screwdriver with adjustable length.

Background

The screwdriver, also called a screwdriver, is a common tool for electric workers and mainly comprises a handle, a screw rod and a screwdriver head, wherein the screwdriver head is in a shape like a Chinese character 'yi' or 'cross', can be inserted into a slot or a notch at the head part of a screw head, and then the handle of the screwdriver is screwed, so that the screw is screwed or loosened. In daily work, workers need screwdrivers with different screw rod lengths to meet work requirements. Its shank of bolt of screwdriver of adjustable length among the prior art generally adopts the telescopic structure of pipe sleeve pipe, adopts this kind of structure to lead to the partial body of rod of screw to be hollow form, greatly reduced the holistic intensity of screw, very easily appear bending scheduling problem when in-service use, seriously influence staff's operating efficiency. Therefore, a novel screwdriver with adjustable length is provided by the technical personnel in the field to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the weak point among the prior art, provide a novel screwdriver with adjustable length, its reasonable in design, simple structure, ingenious, convenient to use, the bulk strength of screw pole is higher, is difficult for the bending, warp, can effectively promote staff's operating efficiency.

A novel screwdriver with adjustable length, including lead screw, tool bit and handle. The front end of the lead screw is provided with a cutter head, and the outer surface of the rear body of rod is provided with threads. The front end of the handle is provided with a slot extending backwards at the axis center, and the handle is movably inserted into the rear part of the screw rod through the slot. The fixed location slider that is provided with on the inner wall of slot, be provided with on the lead screw with location slider complex location spout, the location slider activity sets up in the spout of location to prevent that the lead screw from rotating inside the slot. The rear portion spiro union of screw pole has adjusting nut, adjusting nut's rear end fixedly connected with tube coupling, the front end of handle is located to the tube coupling movable sleeve to make adjusting nut and handle rotate and be connected. The inner wall of the pipe joint is fixedly provided with a connecting ring, the handle is provided with an annular groove matched with the connecting ring, and the connecting ring is movably arranged in the annular groove to prevent the handle from falling off the pipe joint. The pipe joint is characterized in that a through hole is formed in the pipe joint, a positioning insertion hole matched with the through hole is formed in the handle, a positioning bolt is inserted into the through hole, and the positioning bolt penetrates through the through hole and can be inserted into the positioning insertion hole to fix the position of the pipe joint.

The utility model has the advantages that: the screwdriver is reasonable in design, simple and ingenious in structure, convenient to use, high in overall strength of the screw rod, not prone to bending and deformation, and capable of effectively improving the working efficiency of workers.

Drawings

Fig. 1 is a schematic structural view of a length-adjustable screwdriver of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic structural view of the positioning slide block and the positioning slide groove of the present invention.

Fig. 4 is a schematic structural view of the pipe joint and the connecting ring according to the present invention.

1-screw rod 2-tool bit 3-handle 4-slot 5-adjusting nut 6-tube coupling 7-location jack 8-location bolt 9-go-between 10-magnetism part 11-location spout 12-location slider 13-ring channel.

Detailed Description

Referring now to the drawings in the specification, in conjunction with specific embodiments, there is illustrated the following: a novel screwdriver with adjustable length, including lead screw 1, tool bit 2 and handle 3. The front end of the lead screw 1 is provided with a cutter head 2, and the outer surface of the rear rod body is provided with threads. The front end of the handle 3 is provided with a slot 4 extending backwards at the axis center, and the handle 3 is movably inserted into the rear part of the screw rod 1 through the slot 4. The fixed location slider 12 that is provided with on the inner wall of slot 4, be provided with on the lead screw 1 with location slider 12 complex location spout 11, location slider 12 activity sets up in location spout 11 to prevent that lead screw 1 from rotating in slot 4 is inside. The rear portion spiro union of lead screw 1 has adjusting nut 5, adjusting nut 5's rear end fixedly connected with tube coupling 6, the front end of handle 3 is located to 6 movable sleeve of tube coupling to make adjusting nut 5 rotate with handle 3 and be connected. The inner wall of the pipe joint 6 is fixedly provided with a connecting ring 9, the handle 3 is provided with an annular groove 13 matched with the connecting ring 9, and the connecting ring 9 is movably arranged in the annular groove 13 to prevent the handle 3 from falling off the pipe joint 6. The pipe joint is characterized in that a through hole is formed in the pipe joint 6, a positioning jack 7 matched with the through hole is formed in the handle 3, a positioning bolt 8 is inserted into the through hole, and the positioning bolt 8 penetrates through the through hole and can be inserted into the positioning jack 7 to fix the position of the pipe joint 6.

The utility model discloses an application principle: in the normal state, the rear part of the lead screw 1 is completely located in the slot 4 of the handle 3, which is equivalent to a conventional screwdriver. When the length of the screw rod 1 needs to be adjusted, a worker only needs to take down the positioning bolt 8, hold the handle 3 with one hand and rotate the adjusting nut 5 with the other hand. Because the adjusting nut 5 is screwed with the lead screw 1, the lead screw 1 can move forward by rotating the adjusting nut 5 under the action of the positioning slide block 12 and the positioning chute 11, namely the working length of the lead screw 1 is increased. After the length is adjusted to a proper length, the through hole is made to correspond to the positioning jack 7, and the positioning bolt 8 is inserted again. Similarly, the operation length of the short screw rod 1 can be adjusted by rotating the adjusting nut 5 in the opposite direction.

Further preferably, the bottom of the positioning insertion hole 7 is provided with a magnetic attraction part 10 to prevent the positioning latch 8 from falling out of the positioning insertion hole 7.

Further preferably, the positioning bolt 8 is in the form of a bolt, the positioning insertion hole 7 is a threaded hole, and the positioning bolt 8 is in threaded connection with the positioning insertion hole 7.

Further preferably, the through holes are provided in a plurality and are uniformly arranged along the circumference of the pipe joint 6.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel screwdriver with adjustable length, includes screw rod (1), tool bit (2) and handle (3), its characterized in that: the front end of the lead screw (1) is provided with a cutter head (2), and the outer surface of the rear rod body is provided with threads; a slot (4) extending backwards is formed in the axis of the front end of the handle (3), and the handle (3) is movably inserted into the rear part of the screw rod (1) through the slot (4); a positioning sliding block (12) is arranged on the inner wall of the slot (4), a positioning sliding groove (11) matched with the positioning sliding block (12) is arranged on the lead screw (1), and the positioning sliding block (12) is movably arranged in the positioning sliding groove (11) to prevent the lead screw (1) from rotating in the slot (4); the rear part of the screw rod (1) is screwed with a nut (5), the rear end of the nut (5) is connected with a pipe joint (6), and the pipe joint (6) is movably sleeved at the front end of the handle (3) so as to enable the nut (5) to be rotatably connected with the handle (3); a connecting ring (9) is arranged on the inner wall of the pipe joint (6), an annular groove (13) matched with the connecting ring (9) is arranged on the handle (3), and the connecting ring (9) is movably arranged in the annular groove (13) to prevent the handle (3) from falling off the pipe joint (6); the pipe joint is characterized in that a through hole is formed in the pipe joint (6), a positioning jack (7) matched with the through hole is formed in the handle (3), a positioning bolt (8) is inserted into the through hole, and the positioning bolt (8) penetrates through the through hole and can be inserted into the positioning jack (7) to fix the position of the pipe joint (6).

2. The length adjustable screwdriver as recited in claim 1, wherein: the bottom of the positioning insertion hole (7) is provided with a magnetic part (10) to prevent the positioning bolt (8) from falling out of the positioning insertion hole (7).

3. The length adjustable screwdriver as recited in claim 1, wherein: the positioning bolt (8) is in a bolt form, the positioning insertion hole (7) is a threaded hole, and the positioning bolt (8) is in threaded connection with the positioning insertion hole (7).

4. The length-adjustable novel screwdriver according to claim 1, wherein: the through holes are a plurality of and are uniformly arranged along the circumference of the pipe joint (6).