CN209831481U

CN209831481U - Precise screwdriver

Info

Publication number: CN209831481U
Application number: CN201920059508.7U
Authority: CN
Inventors: 陈仕峰
Original assignee: Ningbo Bai Te Tools Co Ltd
Current assignee: Ningbo Bai Te Tools Co Ltd
Priority date: 2019-01-14
Filing date: 2019-01-14
Publication date: 2019-12-24
Anticipated expiration: 2029-01-14

Abstract

The utility model discloses an accurate screwdriver has solved the screwdriver head supporting in present stage and has carried inconvenient problem. Its technical scheme main points are accurate screwdriver, including screwdriver handle and two at least screwdriver heads, the afterbody of screwdriver handle has the installation cavity that supplies the screwdriver head to deposit, the opening of installation cavity sets up in the tail end of screwdriver handle, and the screwdriver handle still is provided with and covers the end cover that closes with screwdriver handle tail end cooperation and the opening of installing the cavity, accurate screwdriver can deposit multiple screwdriver head, and convenient operation workman carries.

Description

Precise screwdriver

Technical Field

The utility model relates to a machine tool especially relates to an accurate screwdriver.

Background

A screwdriver is a tool used to turn a screw to force it into place. The screwdriver comprises a screwdriver handle and a screwdriver head detachably mounted on the screwdriver handle, and the screwdriver handle is provided with a mounting seat for the screwdriver head to be inserted and fixed. In order to enable one screwdriver to rotate a plurality of screws, one screwdriver can be adapted to a plurality of screwdriver heads. Because a screwdriver handle has and can only install a screwdriver head, in the toolbox need be placed to remaining screwdriver head for the operation workman need carry the toolbox that corresponds in order to deal with different screws when carrying out work, very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an accurate screwdriver, multiple screwdriver head can be deposited to accurate screwdriver, and convenient operation workman carries.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a precision screwdriver, includes screwdriver handle and two at least screwdriver heads, the afterbody of screwdriver handle has the installation cavity that supplies the screwdriver head to deposit, the opening of installation cavity sets up in the tail end of screwdriver handle, and the screwdriver handle still is provided with and cooperates and the end cover that closes with the opening lid of screwdriver handle tail end.

By adopting the technical scheme, when one screwdriver head is installed on the screwdriver handle, the rest screwdriver heads can be stored in the installation cavity of the screwdriver handle, and the rest screwdriver heads can be conveniently stored, stored and transported. Compare in the mode that all the other screwdriver heads were deposited to traditional tool box, the utility model discloses a set up the installation cavity on the screwdriver handle, left away the tool box to reduce greatly and carried the volume, made things convenient for operation workman's carrying.

The utility model discloses further set up to, the installation cavity is cylindrical and with the coaxial setting of screwdriver handle.

Through adopting above-mentioned technical scheme, the coaxial setting of installation cavity and screwdriver handle can weaken because of setting up the influence of installation cavity to the structural strength of screwdriver handle tail end.

The utility model discloses further set up to, the tail end of screwdriver handle has external screwed joint, end cover and external screwed joint screw-thread fit.

Through adopting above-mentioned technical scheme, screwdriver handle and end cover pass through threaded connection fixed, above-mentioned connected mode simple structure, and it is comparatively convenient to use.

The utility model discloses further set up to, the lateral wall equipartition that the end cover has rotation section and rotation section has the friction line.

Through adopting above-mentioned technical scheme, the surface of end cover sets up the coefficient of friction that the friction line had promoted the end cover surface to make things convenient for the dismouting of end cover.

The utility model discloses further set up to, still be equipped with in the installation cavity and criticize first mounting panel, criticize first mounting panel have the jack and laid at the inner wall of jack and criticize first complex rubber ring with the screw.

By adopting the technical scheme, the screwdriver heads can be conveniently placed by the screwdriver head mounting plate, so that the screwdriver heads can be neatly placed in the mounting cavity, and the situation that a plurality of screwdriver heads cannot be disassembled and assembled in the mounting cavity is avoided. Simultaneously, through set up the rubber ring in the jack for the dismouting of screwdriver head on criticizing first mounting panel is all comparatively convenient.

The utility model discloses further set up to, install the bottom of installation cavity and install and criticize the pressure spring of first mounting panel bottom butt, criticize the top center department of first ann board and have a pull rod, after the end cover takes off from external screwed joint, the installation cavity is stretched out to the pull rod.

Through adopting above-mentioned technical scheme, when the end cover takes off from the screwdriver handle, under pressure spring's effect, criticize first mounting panel and slide towards the direction that leaves the installation cavity for the pull rod stretches out the installation cavity, and the user can be through the pull rod will criticize first mounting panel in coordination with the screwdriver head is whole to take out the installation cavity, thereby conveniently criticize the dismouting of first mounting panel.

The utility model discloses further set up to, the bottom of installation cavity is equipped with the reference column that supplies the pressure spring installation, pressure spring's inner circle and the lateral wall butt of reference column.

Through adopting above-mentioned technical scheme, the setting of reference column can make things convenient for pressure spring's installation and location, reduces pressure spring and takes place the probability of buckling.

The utility model discloses further set up to, the one deck rubber pad has been laid to the inner chamber top surface of end cover.

Through adopting above-mentioned technical scheme, experience comparatively state of jolting when accurate screwdriver in the transportation, the screwdriver head takes place to drop from criticizing the first mounting panel easily, and the setting up of rubber pad can reduce the impact damage that the screwdriver head that drops caused the end cover.

The utility model discloses further set up to, criticize the lateral wall circumference of first mounting panel and seted up at least three embedding hole and movable mounting in the downthehole ball of embedding, the inner wall looks butt of ball and installation cavity.

Through adopting above-mentioned technical scheme, the setting up of ball can make things convenient for the installation and the dismantlement of criticizing first mounting panel in the installation cavity, reduces and criticizes the probability that first mounting panel takes place the card dead in the installation cavity.

To sum up, the utility model discloses following beneficial effect has:

1. a precise screwdriver comprises a screwdriver handle and at least two screwdriver heads, wherein the tail end of the screwdriver handle is provided with an installation cavity for placing the screwdriver heads and an end cover for covering the opening of the installation cavity, so that an operator can carry various screwdriver heads, and the loss probability of the matched screwdriver heads is reduced;

2. the screwdriver head mounting plate is arranged in the mounting cavity and provided with the jack and the rubber ring for mounting the screwdriver head, so that the mounting of the screwdriver head is facilitated, and the probability that the screwdriver head is blocked in the mounting cavity and is difficult to take out is reduced;

3. through setting up pressure spring and pull rod to it takes out from the installation cavity to have made things convenient for batch head mounting panel.

Drawings

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

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is an explosion diagram of the screwdriver bit mounting plate and the screwdriver bit of the present invention.

In the figure: 1. a screwdriver shank; 11. a bit mounting base; 12. installing a cavity; 13. an externally threaded nipple; 14. a positioning column; 2. a screwdriver head; 3. an end cap; 31. a rotating section; 32. rubbing the grains; 33. a rubber pad; 4. a batch head mounting plate; 42. a ball bearing; 43. a jack; 44. a rubber ring; 45. a pull rod; 5. a pressure spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a precision screwdriver comprises a screwdriver handle 1 and at least two screwdriver heads 2, and in the embodiment, the precision screwdriver has four screwdriver heads 2.

Wherein, the head of screwdriver handle 1 is provided with the first mount pad 11 of wholesale that supplies screwdriver head 2 to peg graft the installation, when the torsion of carrying out the screw, can be through changing the screwdriver head 2 of wholesale on the first mount pad 11 with the screw correspondence to make accurate screwdriver can twist reverse the screw.

Referring to fig. 2, the screwdriver handle 1 has a mounting cavity 12 at the rear for storing the screwdriver head 2, the mounting cavity 12 has an opening at the rear end of the screwdriver handle 1, and the mounting cavity 12 is cylindrical and coaxial with the screwdriver handle 1. The screwdriver handle 1 is also provided with an end cover 3 which is in threaded fit with the tail end of the screwdriver handle 1 and covers the opening of the installation cavity 12. In this embodiment, the end of the screwdriver shank 1 has a male connector 13, and the end cap 3 is threadedly engaged with the male connector 13.

In order to facilitate the disassembly and assembly of the end cover 3 by an operator, the end cover 3 is provided with a rotating section 31, and friction grains 32 are uniformly distributed on the outer side wall of the rotating section 31.

A disc-shaped batch head mounting plate 4 is also arranged in the mounting cavity 12. The shape of the batch head mounting plate 4 is matched with the cross section of the mounting cavity 12. In order to facilitate smooth sliding of the bit mounting plate 4 in the mounting cavity 12, at least three embedding holes and balls 42 movably mounted in the embedding holes are circumferentially formed on the outer side wall of the bit mounting plate 4, and the balls 42 are abutted to the inner wall of the mounting cavity 12.

Referring to fig. 4, the bit mounting plate 4 has a hole 43 and a rubber ring 44 fitted to the screwdriver bit 2 is laid on the inner wall of the hole 43. In this embodiment, the batch head mounting plate 4 has three insertion holes 43 and three rubber rings 44, and the rubber rings 44 are directly fixed to the inner walls of the insertion holes 43 by glue. By the structure, the screwdriver head 2 can be positioned on the screwdriver head mounting plate 4 through direct insertion, and the screwdriver head 2 can be conveniently mounted and dismounted on the screwdriver head mounting plate 4.

Referring to fig. 3, the bottom of the mounting cavity 12 is provided with a pressure spring 5 abutting against the bottom of the batch head mounting plate 4, the bottom of the mounting cavity 12 is further provided with a positioning column 14 for mounting the pressure spring 5, and an inner ring of the pressure spring 5 abuts against an outer side wall of the positioning column 14. Meanwhile, a pull rod 45 is arranged at the center of the top of the batch head mounting plate, and a layer of rubber pad 33 for abutting against the top of the pull rod 45 is laid on the top surface of the inner cavity of the end cover 3.

When the end cover 3 is arranged on the external thread connector 13 of the screwdriver handle 1, the pull rod 45 abuts against the top surface of the inner cavity of the end cover 3, the screwdriver head mounting plate 4 is enabled to extrude the pressure spring 5, and the pressure spring 5 is compressed; when the end cap 3 is removed from the male connector 13, the bit mounting plate 4 is lifted by the pressure spring 5 so that the pull rod 45 extends out of the mounting cavity 12.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a precision screwdriver, includes screwdriver handle (1) and two at least screwdriver heads (2), its characterized in that, the afterbody of screwdriver handle (1) has installation cavity (12) that supply screwdriver head (2) to deposit, the opening of installation cavity (12) sets up in the tail end of screwdriver handle (1), and screwdriver handle (1) still is provided with end cover (3) that just will install the opening lid of cavity (12) and close with screwdriver handle (1) tail end cooperation.

2. A precision screwdriver according to claim 1, characterised in that said mounting cavity (12) is cylindrical and is arranged coaxially to the screwdriver shank (1).

3. A precision screwdriver according to claim 2, wherein the end of the screwdriver shank (1) has a male connector (13), and the end cap (3) is threadedly engaged with the male connector (13).

4. The precise screwdriver according to claim 3, wherein the end cap (3) has a rotating section (31) and the outer side wall of the rotating section (31) is provided with friction lines (32).

5. A precision screwdriver according to claim 4, wherein a screwdriver head mounting plate (4) is further arranged in the mounting cavity (12), the screwdriver head mounting plate (4) is provided with a jack (43), and a rubber ring (44) matched with the screwdriver head (2) is laid on the inner wall of the jack (43).

6. A precision screwdriver according to claim 5, wherein the bottom of the mounting cavity (12) is provided with a pressure spring (5) which abuts against the bottom of the screwdriver head mounting plate (4), the centre of the top of the screwdriver head mounting plate is provided with a pull rod (45), and the pull rod (45) extends out of the mounting cavity (12) after the end cover (3) is removed from the external thread joint (13).

7. A precision screwdriver according to claim 6, wherein the bottom of the mounting cavity (12) is provided with a positioning column (14) for mounting the pressure spring (5), and the inner ring of the pressure spring (5) is abutted with the outer side wall of the positioning column (14).

8. A precision screwdriver according to claim 7, wherein the top surface of the inner cavity of the end cap (3) is provided with a rubber pad (33).

9. The precise screwdriver according to claim 5, wherein the outer side wall of the screwdriver head mounting plate (4) is circumferentially provided with at least three embedding holes and a ball (42) movably mounted in the embedding holes, and the ball (42) is abutted with the inner wall of the mounting cavity (12).