CN201183241Y

CN201183241Y - Screwdriver with metal handle

Info

Publication number: CN201183241Y
Application number: CNU2008200847770U
Authority: CN
Inventors: 仇建平
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Industrial Co Ltd
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2009-01-21
Anticipated expiration: 2018-03-31

Abstract

A screwdriver with a metal handle belongs to a manual tool. Defects such as large machining quantity, material waste, and the like exist in the prior art. The screwdriver comprises a handle and a screwdriver rod connected to the handle, wherein, the head part of the screwdriver rod is provided with a screwdriver head. The screwdriver is characterized in that the handle consists of at least two sections, wherein, one section is a holding section formed by metal material, and the holding section is provided with an outer contour suitable for holding by hand. The screwdriver utilizes metal material such as aluminium to replace the traditional plastic material so as to enable the handle to have enough torque bearing capability; the handle with a three-section combined structure can choose different materials for separate sections, thereby reducing the manufacturing quantity of removed material and the material waste.

Description

Metal handle screwdriver

Technical field

The utility model belongs to hand-operated tools, a kind of specifically metal handle screwdriver.

Background technology

Screwdriver (also have cry screwdriver) is a kind ofly to grip handle with hand and do spinning movement and drive batch bar and by screwdriver bit screw is applied the hand-operated tools that moment of torsion realizes installing or unloading screw, the structure of existing screwdriver mostly is plastic handle, it bears the limited in one's ability of moment of torsion, that have in addition be difficult to by the check, for the intensity that guarantees handle so that can transmit enough big moment of torsion, generally the material of meeting the selection of material better performances replaces plastics, but, plastic handle is that an injection moulding forms, it is comparatively convenient to make, but product specification is not high, can't embody the texture of metal, and this injection molding way but is difficult to be useful on the metal material, and reason is can make screwdriver seem too heavy with the direct injection moulding handle of metal material, and the people uses can be very tired; Further, handle as screwdriver, it should have good gripping property, therefore usually the profile of being convenient to grip is made on its surface, just need to metal material carry out a large amount of go material and process if make the handle of integral type with metal material this moment, except processing capacity greatly, also therefore waste material does not see the screwdriver handle that adopts metal material to make at present as yet on market.

The utility model content

The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome defectives such as the processing capacity that prior art exists is big, waste material, provides a kind of screwdriver of metal handle, the screwdriver that particularly utilizes aluminium alloy extrusions to process as raw material.For this reason, the utility model is by the following technical solutions:

Metal handle screwdriver, comprise handle and batch bar that is connected on the handle, the head of batch bar has screwdriver bit, it is characterized in that described handle constitutes by two sections at least, wherein one section is the holding section that is formed by metal material at least, and it has the exterior contour that is suitable for the hand gripping.

Technique scheme can be born enough big moment of torsion in order to guarantee handle, specially selects the metal material manufacturing for use, simultaneously, the structure of segmented can be selected different materials for use, promptly can be made by aluminium section bar as holding section, reduces the waste of processing capacity and material thus; And the good oxidable characteristic of the weight of the less minimizing screwdriver of the density of utilizing metallic aluminium handle and section bar aluminium, can improve the class of product.

As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:

At least two sections tail-hoods that comprise the neck that is fixedly connected on described holding section front end and/or be fixedly connected on described holding section rear end of described formation handle, this neck and tail-hood and described holding section form continuous surface texture on the profile, and this neck and/or tail-hood can be made with metal or other materials.

Described being fixedly connected as is threaded or/and bond and interference fit.This connected mode can be processed neck, holding section and tail-hood respectively according to design earlier, fixes afterwards again, is convenient to assembling.

Be inlaid with tread plate on the described holding section.Tread plate can make the hand can more reliable gripping handle, applies enough moments of torsion.

As the matching way of batch bar and handle, can realize in such a way:

A kind of is to be that batch direct interference of bar of one is pressed in the handle with screwdriver bit and batch bar.Every kind of screwdriver of this mode has only a kind of function.

A kind of is that batch bar and handle are fixed together.At this moment, in order to strengthen the versatility of screwdriver, can container cavity be set at the leading section of batch bar, screwdriver bit is inserted in this container cavity by the fast mounting-dismounting structure; The two ends of described screwdriver bit are provided with operate portions, even this operate portions two kinds of functions being arranged to again to reverse end for end.Different version can be arranged in the two ends of screwdriver bit thus, by tune makes screwdriver can be applicable to the screw of two kinds of (or four kinds even more) versions to screwdriver bit.

Another kind is the neck that cutting ferrule is fixedly connected on handle, on cutting ferrule and batch bar fast mounting-dismounting structure that cooperatively interacts is set, and simultaneously, batch bar and operate portions also are provided with

Also having a kind of is that cutting ferrule is fixedly connected on handle together, and be provided with container cavity this moment on handle, will criticize bar and be inserted in this container cavity, on handle and batch bar the fast mounting-dismounting structure that cooperatively interacts is set.So structure can turn around criticizing bar in use, and the operate portions of different structure form is set at the two ends of batch bar, can make screwdriver be applicable to the screw of two kinds of versions at least; Further, described fast mounting-dismounting structure comprises at least one pair of torque transfer part and one group of location structure, torque transfer part is used to transmit moment of torsion, location structure is used for batch bar is positioned at and prevents the slippage from the handle of batch bar on the handle, for this reason, described torque transfer part is to divide to be located at handle and holding tank and the bearing pin or the mutual surface of mating of criticizing on the bar, and described location structure is located at handle and locating slot and the positioning convex assembly (as pellet shot from a slingshot and the spring that is supported on the pellet shot from a slingshot rear side) criticized on the bar for branch; For the ease of being provided with and batch structure of bar coupling, handle also comprises a cutting ferrule, and this cutting ferrule is fixed between described neck and the holding section, and described fast mounting-dismounting structure is arranged on this cutting ferrule and batch bar; The screwdriver of this version, (can for two ends, also can be an end) be provided with container cavity in the end of batch bar, screwdriver bit is inserted in this container cavity by the fast mounting-dismounting structure, screwdriver bit can have been reversed end for end on batch bar so, the two ends of screwdriver bit are arranged to the operate portions of different structure form, then can four kinds of operate portions be set on a screwdriver, make a screwdriver can be applicable to the screw of four kinds of versions.

The beneficial effects of the utility model are:

1, replaces plastic material with metal material such as aluminium, make handle have enough moment of torsion ability to bears;

2, handle is arranged to the syllogic combining structure, therefore can be selected for use different material (as section bar) respectively during fabrication, reduce the waste of removing to expect processing capacity and material thus;

3, bear the raising of torque capability by handle, the integrated structure of criticizing bar and handle can be arranged to multiple version, realize that thus a screwdriver can satisfy the screw of multiple version simultaneously, has strengthened the versatility of screwdriver.

Description of drawings

Fig. 1 is the generalized section along its axis direction of a preferred embodiment of the present utility model.

Fig. 2 is that the K-K of Fig. 1 is to the cross section enlarged drawing.

Fig. 3 is the structural representation of the holding section of structure shown in Figure 1.

Fig. 4 is that the E-E of Fig. 3 is to schematic cross-section.

Fig. 5 is the structural representation of the neck of structure shown in Figure 1.

Fig. 6 is the structural representation of the anti-skidding accent of structure shown in Figure 1.

Fig. 7 is that the F-F of Fig. 6 is to schematic cross-section.

Fig. 8 is the generalized section along its axis direction of another preferred embodiment of the present utility model.

Among the figure:

The 1-handle

The 11-holding section

The 11a-caulking groove

The 11b-internal thread

The 11c-external screw thread

The 12-neck

The 12a-internal thread

12b-compresses the limit

The 13-tail-hood

The 13a-external screw thread

The 14-container cavity

The 15-cutting ferrule

The 15a-gulde edge

The 15b-locating slot

The 16-tread plate

The 17-adhesive portion

2-criticizes bar

The 21-retaining hole

The 22-pellet shot from a slingshot

The 23-spring

The 24-container cavity

The 3-screwdriver bit

The 31-operate portions.

The specific embodiment

The utility model is elaborated by preferred embodiment below in conjunction with accompanying drawing.

Embodiment one

Metal handle screwdriver as shown in Figure 1, 2, it is made up of a handle 1, batch of bar 2, two screwdriver bits 3, wherein:

Handle 1 is made by aluminium section bar, concrete, be by neck 12, holding section 11, tail-hood 13 and cutting ferrule 15 mounts form, described holding section 11 is as Fig. 3, shown in 4, the aluminium section bar that is the axis direction extension of intercepting suitable length forms by machining, this aluminium section bar central axial direction has through hole, through-hole inner surface is positive hexa-prism, this through hole after forming handle as the part of container cavity 14, the exposed parts of this holding section 14 is processed into the waist drum shape, and caulking groove 11a is set, the setting-in cross sectional shape tread plate 16 consistent with caulking groove (seen Fig. 6 in this caulking groove 11a, 7), thereby form the continuous appearance profile that grips with hand be convenient to, be processed with external screw thread 11c, be processed with internal thread 11b in the rear end of holding section at the front end of holding section 11; Neck 12 centers have through hole and are provided with internal thread 12a, and its front end has the limit of compressing 12b (see figure 5); Cutting ferrule 15 is the cover round, and its inner chamber and outer surface all are positive hexa-prism, offers locating slot 15b on its sidewall, and the one end has gulde edge 15a; Tail-hood 13 is provided with external screw thread 13a; Above-mentioned four parts, cutting ferrule 15 is placed in the endoporus of grip part 11 front ends, make the front end of gulde edge 15a and grip part 11 conflict, afterwards neck 12 is enclosed within the front end of grip part 11 and screwing cutting ferrule 15 pressure holdings between grip part 11 and neck 12 by internal thread 12a and external screw thread 11c, in order to guarantee that grip part 11 and neck 12 can combine reliably, pass through glue bonding (as the adhesive portion among the figure 17) at its position that contacts with each other; 13 of tail-hoods screw by its external screw thread 13a and the internal thread 11b of grip part 11 and realize being connected of the two; So far, described neck 12, grip part 11 and tail-hood 13 have promptly formed three stage structure, because the mount between the three is realized by screw thread, therefore mount is together the time, there is no tangible bonding crack in shape and influence the profile of whole handle, described neck, holding section and tail-hood form continuous surface texture on the profile.

Criticize bar 2 in a tubular form, its outer surface is positive hexa-prism, and its inner surface also is positive hexa-prism, on its sidewall, offer a retaining hole 21, retaining hole is built-in with pellet shot from a slingshot 22, is supported with spring 23 at pellet shot from a slingshot 22 rear sides, and this pellet shot from a slingshot 22 and spring 23 have constituted the positioning convex assembly.This batch bar 2 is inserted in the handle container cavity 14, the locating slot 15a that makes pellet shot from a slingshot 22 be positioned at cutting ferrule promptly realizes batch location of bar 2 on handle 1, and the coupling formation torque transfer arrangement between the positive hexa-prism endoporus of the positive hexa-prism outer surface by batch bar 2 and cutting ferrule.

Screwdriver bit 3 outer surfaces are positive hexa-prism, it is provided with positioning convex assembly (not shown), all there is operate portions 31 at its two ends, it is inserted into the two ends of batch bar 2 and can reverses end for end, be implemented in the location of criticizing on the bar by the positioning convex assembly, and positive six prismatic surface that the two mates have mutually formed torque transfer arrangement.

The screwdriver of said structure owing to have two screwdriver bits and two screwdriver bits that two operate portions are all arranged, therefore can make screwdriver be applicable to the screw of four kinds of versions.During use, hold handle and apply moment of torsion, then the coupling of coupling, batch bar and the screwdriver bit of coupling, cutting ferrule and batch bar that moment of torsion can be by grip part and cutting ferrule passes to screw; And by criticizing bar or/and the tune of screwdriver bit can be carried out work with the operate portions of needs towards the place ahead.

Embodiment two

As shown in Figure 8, this metal handle screwdriver is made up of a handle 1, a batch of bar 2, be in above explanation to embodiment one, the difference of this metal handle screwdriver and embodiment one only is described: in this embodiment here, directly form the structure of the tail-hood of identical embodiment at the rear of holding section 11, to criticize bar 2 simultaneously and directly be fixed on the handle, in the front end formation operate portions 31 of batch bar 2, all the other structures will not be given unnecessary details.

Claims

1, metal handle screwdriver, comprise handle (1) and be connected batch bar (2) on the handle (1), the head of criticizing bar (2) has screwdriver bit (3), it is characterized in that described handle (1) constitutes by two sections at least, wherein one section is the holding section (11) that is formed by metal material at least, and it has the exterior contour that is suitable for the hand gripping.

2, metal handle screwdriver according to claim 1, at least two sections tail-hoods that comprise the neck that is fixedly connected on described holding section front end and/or be fixedly connected on described holding section rear end that it is characterized in that described formation handle, this neck and tail-hood and described holding section form continuous surface texture on the profile.

3, metal handle screwdriver according to claim 2 is characterized in that described being fixedly connected as is threaded or/and bond and interference fit.

4, metal handle screwdriver according to claim 1 is characterized in that being inlaid with on the described holding section (11) tread plate (16).

5,, it is characterized in that described batch of bar (2) and handle (1) are fixed together according to the described metal handle of the arbitrary claim of 1-4 screwdriver.

6, metal handle screwdriver according to claim 5 is characterized in that the leading section of described batch of bar has container cavity, and described screwdriver bit is inserted in this container cavity by the fast mounting-dismounting structure; The two ends of described screwdriver bit are provided with operate portions.

7, according to the described metal handle of the arbitrary claim of 1-4 screwdriver, it is characterized in that having container cavity (14) on the described handle (1), described batch of bar (2) is inserted in this container cavity (2), goes up at handle (1) and batch bar (2) the fast mounting-dismounting structure that cooperatively interacts is set.

8, metal handle screwdriver according to claim 7 is characterized in that described fast mounting-dismounting structure comprises at least one pair of torque transfer part and one group of location structure.

9, metal handle screwdriver according to claim 8, it is characterized in that described torque transfer part is to divide to be located at handle and holding tank and the bearing pin or the mutual surface of mating of criticizing on the bar, described location structure is located at handle and locating slot (15b) and the positioning convex assembly criticized on the bar for branch.

10, metal handle screwdriver according to claim 7, it is characterized in that described handle (1) also comprises a cutting ferrule (15), this cutting ferrule (15) is fixed between described neck (12) and the holding section (11), and described fast mounting-dismounting structure is arranged on this cutting ferrule and batch bar.