CN211491280U

CN211491280U - Telescopic screwdriver

Info

Publication number: CN211491280U
Application number: CN202020088402.2U
Authority: CN
Inventors: 周秋实; 潘春清; 胡延军; 李松林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-09-15
Anticipated expiration: 2030-01-16

Abstract

The utility model relates to the technical field of screwdrivers, in particular to a telescopic screwdriver, which comprises a handle and a tool post, wherein a tool post telescopic groove is arranged in the handle, one end of the tool post telescopic groove is communicated with the outside, the other end is closed, and the upper side and the lower side of the tool post telescopic groove are both provided with limiting sliding grooves; part of the tool bit column is inserted into the tool bit column telescopic groove, a tool bit is integrally formed at the tail end of the tool bit column positioned outside the tool bit column telescopic groove, and first threads are arranged on the surface of the tool bit column; the cover is equipped with the fixed lantern ring on the tool bit post, the inside perforation that supplies the tool bit post to pass that is equipped with of the fixed lantern ring, fenestrate pore wall surface is equipped with the second screw thread, second screw thread and the mutual interlock of first screw thread, the utility model discloses can freely adjust the extension length of the tool bit post on the screwdriver to can be according to the use needs of different environment, the extension length of the regulation tool bit post of selectivity has stronger practicality.

Description

Telescopic screwdriver

Technical Field

The utility model relates to a screwdriver technical field specifically is a telescopic screwdriver.

Background

The screwdriver is a common tool in life and industrial production, the appearance of the screwdriver greatly facilitates the use of people for small screws and the basic operation of daily life and factory production, but the existing screwdrivers are generally designed in an integrated mode, and the screwdriver has the problem that if a longer tool bit column or a shorter tool bit column is needed to better screw the screws in a corresponding environment, the screwdriver with a corresponding model needs to be replaced, so that the practicability of the screwdriver is not high. In view of this, we propose a telescopic screwdriver.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiency, the utility model provides a telescopic screwdriver.

The technical scheme of the utility model is that:

a telescopic screwdriver comprises a handle and a tool bit column, wherein a tool bit column telescopic groove is formed in the handle, one end of the tool bit column telescopic groove is communicated with the outside, the other end of the tool bit column telescopic groove is closed, and limiting sliding grooves are formed in the upper side and the lower side of the tool bit column telescopic groove; part of the tool bit column is inserted into the tool bit column telescopic groove, a tool bit is integrally formed at the tail end of the tool bit column positioned outside the tool bit column telescopic groove, and first threads are arranged on the surface of the tool bit column; the tool bit column is sleeved with a fixed lantern ring, a through hole for the tool bit column to penetrate through is formed in the fixed lantern ring, second threads are arranged on the surface of the hole wall of the through hole, and the second threads are meshed with the first threads.

As a preferred technical scheme, the interface of the limiting sliding groove is rectangular.

As an optimized technical scheme, a plurality of annular grooves are formed in the groove wall of the limiting sliding groove, and at least three annular grooves are linearly arranged at equal intervals.

As an optimized technical scheme, two mutually symmetrical clamping grooves are formed in the groove wall of each annular groove, and the clamping grooves are formed in the groove wall of one side, away from the opening of the telescopic groove of the tool bit column.

As a preferred technical scheme, two mutually symmetrical limiting lugs are arranged at the tail end of the tool bit column, which is positioned in the tool bit column telescopic groove.

As a preferred technical scheme, the shape of the limiting convex block, the shape of the limiting sliding groove, the shape of the limiting convex block and the shape of the clamping groove are matched with each other, and the size of the limiting convex block is smaller than the groove width of the annular groove.

Preferably, the shape of the tool bit column and the shape of the tool bit column telescopic groove are matched with each other.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses can freely adjust the extension length of the tool bit post on the screwdriver to can be according to the use needs of different environment, the extension length of selective regulation tool bit post has stronger practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the handle of the present invention;

fig. 4 is an enlarged schematic view of the utility model at a in fig. 2;

fig. 5 is a cross-sectional view of the fixing collar of the present invention.

In the figure: the handle 1, the tool bit post telescopic groove 10, the limiting sliding groove 11, the annular groove 12, the clamping groove 13, the tool bit post 2, the first thread 20, the limiting bump 21, the tool bit 22, the fixing lantern ring 3, the perforation 30 and the second thread 31.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

a telescopic screwdriver comprises a handle 1 and a tool bit column 2, wherein a tool bit column telescopic groove 10 is formed in the handle 1, one end of the tool bit column telescopic groove 10 is communicated with the outside, the other end of the tool bit column telescopic groove 10 is closed, and limiting sliding grooves 11 are formed in the upper side and the lower side of the tool bit column telescopic groove 10; part of the tool post 2 is inserted into the tool post telescopic groove 10, a tool bit 22 is integrally formed at the tail end of the tool post 2 positioned outside the tool post telescopic groove 10, and first threads 20 are arranged on the surface of the tool post 2; the cutter head column 2 is sleeved with a fixed lantern ring 3, a through hole 30 for the cutter head column 2 to penetrate through is formed in the fixed lantern ring 3, a second thread 31 is formed in the surface of the hole wall of the through hole 30, and the second thread 31 and the first thread 20 are meshed with each other.

As the utility model discloses a preferred, spacing spout 11's interface is the rectangle, makes things convenient for spacing lug 21 to remove in inside, and the design of rectangle can play the spacing effect to spacing lug 21, guarantees that it can only remove and can not rotate at will along linear direction to play the spacing effect to tool bit post 2.

As the utility model discloses a preferably, be equipped with a plurality of ring channels 12 on the cell wall of spacing spout 11, ring channel 12 is equipped with threely at least, and is linear equidistant range, and spacing lug 21 free rotation in its inside can be realized to ring channel 12's design.

As the utility model discloses a preferably, all be equipped with the draw-in groove 13 of two mutual symmetries on the cell wall of every ring channel 12, and draw-in groove 13 locates on the cell wall of keeping away from one side of tool post expansion groove 10 opening.

As the utility model discloses a preferred, the end that tool post 2 is located tool post telescopic groove 10 inside is equipped with two spacing lugs 21 of mutual symmetry.

It is worth to say that the cutter head column 2 and the limiting lug 21 are fixed in a welding mode.

As the utility model discloses an it is preferred, the shape of spacing lug 21 and the shape of spacing spout 11 and the shape of spacing lug 21 and the shape of draw-in groove 13 all match each other, the size of spacing lug 21 is less than the groove width of ring channel 12, the design of the mutual matching through spacing lug 21 and spacing spout 11, can realize that spacing lug 21 removes along spacing spout 11, the size through spacing lug 21 is less than the design of the size of ring channel 12, can realize the free rotation of spacing lug 21 in ring channel 12 inside, design through the mutual matching of spacing lug 21 and draw-in groove 13, can realize that spacing lug 21 card goes into draw-in groove 13, thereby realize spacing to spacing lug 21, and then realize spacing to tool bit post 2, avoid it to rotate at will and unable normal work in the use.

As the utility model discloses a preferred, the shape of tool bit post 2 and the shape of the flexible groove of tool bit post 10 match each other, avoid tool bit post 2 to insert to the flexible groove of tool bit post 10 inside back, because the size phase difference is great and lead to tool bit post 2 to appear rocking in the use, influence normal operation.

The utility model discloses a telescopic screwdriver is when using, inserts tool post 2 to tool post flexible groove 10 insidely, can come the length that corresponding regulation tool post 2 stretches out according to the length demand of tool post 2 of difference, and concrete operation is as follows: firstly, the fixed lantern ring 3 is rotated to be close to the tool bit 22 as much as possible, due to the design of the limiting lug 21 and the limiting sliding groove 11, the tool bit column 2 can move towards the inside of the tool bit column telescopic groove 10 along the limiting sliding groove 11, and stop when the limiting lug 21 moves to the position of the annular groove 12 at a proper position, because the size of the limiting lug 21 is smaller than the groove width of the annular groove 12, the limiting lug 21 can enter the annular groove 12 when the tool bit column 2 is rotated, and the tool bit column 2 can be used normally when the tool bit column 2 is screwed by the screw due to the limiting effect of the annular groove 13 and the annular groove 12, and because the tool bit column 21 is rotated to the position corresponding to the clamping groove 13, the tool bit column 2 is continuously moved inwards, so that the limiting lug 21 is clamped in the clamping groove 13 all the time, and the fixed lantern ring 3 is rotated towards the opposite direction, make it tightly contradict on the terminal surface of handle 1, can play the fixed action to tool bit post 2 through fixed lantern ring 3, guarantee that it can not appear shaking long problem in the use, through the regulation tool bit post 2 male degree of depth that above-mentioned mode can be selective, consequently can freely adjust the length of stretching out of whole tool bit post 2 as required, the very big demand to the tool bit post 2 of different length in the different environment of convenience.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a telescopic screwdriver, includes handle (1) and tool bit post (2), its characterized in that: a tool bit column telescopic groove (10) is formed in the handle (1), one end of the tool bit column telescopic groove (10) is communicated with the outside, the other end of the tool bit column telescopic groove is closed, and limiting sliding grooves (11) are formed in the upper side and the lower side of the tool bit column telescopic groove (10); part of the column body of the tool bit column (2) is inserted into the tool bit column telescopic groove (10), a tool bit (22) is integrally formed at the tail end of the tool bit column (2) positioned outside the tool bit column telescopic groove (10), and a first thread (20) is arranged on the surface of the tool bit column (2); the cutter head post is characterized in that a fixed sleeve ring (3) is sleeved on the cutter head post (2), a through hole (30) for the cutter head post (2) to penetrate through is formed in the fixed sleeve ring (3), a second thread (31) is arranged on the surface of the hole wall of the through hole (30), and the second thread (31) and the first thread (20) are meshed with each other.

2. The retractable screwdriver of claim 1, wherein: the interface of the limiting sliding groove (11) is rectangular.

3. The retractable screwdriver of claim 1, wherein: the groove wall of the limiting sliding groove (11) is provided with a plurality of annular grooves (12), and at least three annular grooves (12) are arranged at equal intervals linearly.

4. The retractable screwdriver of claim 3, wherein: each groove wall of the annular groove (12) is provided with two mutually symmetrical clamping grooves (13), and the clamping grooves (13) are arranged on the groove wall of one side, away from the opening of the tool bit column telescopic groove (10).

5. The retractable screwdriver of claim 1, wherein: the tail end of the tool bit column (2) located inside the tool bit column telescopic groove (10) is provided with two mutually symmetrical limiting lugs (21).

6. The retractable screwdriver of claim 5, wherein: the shape of the limiting bump (21), the shape of the limiting sliding groove (11), the shape of the limiting bump (21) and the shape of the clamping groove (13) are matched with each other, and the size of the limiting bump (21) is smaller than the groove width of the annular groove (12).

7. The retractable screwdriver of claim 1, wherein: the shape of the tool bit column (2) is matched with the shape of the tool bit column telescopic groove (10).