CN202922498U

CN202922498U - Anti-sliding structure of closed-type clamping part

Info

Publication number: CN202922498U
Application number: CN 201220539407
Authority: CN
Inventors: 纪洪顺
Original assignee: TIANJIN JINCHENG MACHINERY PROCESSING CO Ltd
Current assignee: TIANJIN JINCHENG MACHINERY PROCESSING CO Ltd
Priority date: 2012-10-16
Filing date: 2012-10-16
Publication date: 2013-05-08
Anticipated expiration: 2022-10-16

Abstract

The utility model provides an anti-sliding structure of closed-type clamping part. The anti-sliding structure of closed-type clamping part comprises a clamping part aiming at a manipulative device, wherein the clamping part is a hexagonal-shaped space, and anti-sliding parts are respectively arranged at clamp sides, close to inner acute angles, of the inner side of the clamp part. The clamp sides have tiny convex small radians. Interval first yielding grooves are formed in the anti-sliding parts. Outer acute angles of the first yielding grooves form first biting teeth and second biting teeth. The angle positions of the first yielding grooves and each biting tooth are particularly designed. The centers of the inner acute angles toward clamping sides with included angle of 3.1 degrees are starting ends of the clamping sides. The starting ends with included angles of 13.2 degrees form the first yielding grooves. The first biting teeth are in the position of the first yielding groove with included angles of 6.6 degrees. Included angles between the second biting teeth and the first biting teeth are 7.5 degrees. Each biting tooth effectively occludes with screw elements on the heads abraded, so that rotatable screw elements are smoothly pulled.

Description

The anti-skid structure of closed type clamp part

Technical field

The utility model relates to a kind of technical field of hand-held tool, its be such as sleeve, spanner in order to pulling the folder section of pulling of screw lock module, Anti-skid structure is set pulling for the screw lock module of turret head wearing and tearing.

Background technology

Sleeve or spanner in general hand-held tool can have a pulling head, are provided with the folder section of hex slot or hexagon ring in pulling head, and the application of force is pulled in order to do being sheathed on being hexagonal shape head of screw lock module by folder section, to reach, screw lock module are unclamped or fastening purpose.The hexagonal shape head of screw lock module only can be because use and with the passing of time cause place, the end angle situation of wearing and tearing in obtuse angle, thus folder section when being sheathed on the screw lock module head because can't interlock so that slippage, be difficult to the screw lock module pine is moved back or fastening, it is invalid to use.

The utility model content

The purpose of this utility model is to provide a kind of anti-skid structure of closed type clamp part, and it is mainly the head for the screw lock module rounding, and in folder section, Anti-skid structure is set, and uses and pulls smoothly the screw lock module of having worn and torn.

correspondingly, the anti-skid structure of a kind of closed type clamp part of the utility model, folder section is enclosed interior hexagonal shape space, each inner side edge of described folder section for the folder side, is inner angle between each described folder side, and in the folder side at interval nearly described inner angle, one anti-skidding section is set respectively, totally three anti-skidding sections, described folder side has the little radian towards the center position dimpling, and each described skid-proof regions scope is angle 30 degree, and each described skid-proof regions is at a distance of about 90 degree, wherein said anti-skidding section comprise first allow groove, first and second stings tooth, center, described inner angle towards described folder side direction ratio be 3.1/30 3.1 the degree angles be the starting end of described folder side, be that 2.2/5 13.2 degree angles form first of concave arc shapes and allow groove in the ratio of starting end, described first allow the groove angular range be ratio be 7.5/30 7.5 the degree, described first to allow the channel opening place form respectively aforementioned 13.2 degree positions be to sting tooth for first of tip-angled shape, and and described first sting angle between tooth and be 7.5 degree and sting tooth for second of tip-angled shape, described second to sting tooth and form ratio between the folder side center of described anti-skidding section be 3.1/15 6.2 degree angles, and described center, inner angle and first allows the ratio of center of groove be 2/3 20 degree angles, and described first allows the groove center place be 1/3 10 degree angles to the described folder side center ratio that forms described anti-skidding section.

As further improvement of the utility model, described enclosed folder section can be formed at the pulling head of spanner one end.

As further improvement of the utility model, described enclosed folder section can be formed at sleeve.

The beneficial effects of the utility model are: 1, the utility model is provided with anti-skidding section in order to the folder section that pulls screw lock module, each anti-skidding all by accurate angle angle initialization, form in the position that is fit to and sting tooth, form one anti-skidding, increase contact area and the effect that improves frictional force, effectively bite the head of the rounding of screw lock module in order to sting tooth, walked and pull smoothly the unlikely slippage of screw lock module.

Even 2 general heads are the not screw lock module of rounding of normality, must utilize each side of folder side contacts screw lock module, the end angle of screw lock module enters the inner angle of folder section, and still makes the utility model be applied to the action need of general normality screw lock module.

3, the utility model forms radian slightly in the folder side, in order to the contact strength of improving clamping section and screw lock module, and auxiliary anti-slipping effectiveness.

Description of drawings

Figure 1 shows that the utility model is implemented on the stereogram of spanner.

Figure 2 shows that the utility model is implemented on the top view of spanner.

Figure 3 shows that the stereogram of the utility model enforcement sleeve.

Figure 4 shows that the top view of the utility model enforcement sleeve.

The specific embodiment

Below with reference to the specific embodiment shown in the drawings, the utility model is described in detail.But these embodiments do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these embodiments, method or function all is included in protection domain of the present utility model.

The anti-skid structure of closed type clamp part as shown in Figure 1 and Figure 2, spanner 10 forms pulling head 11 at least one end, the interior formation of pulling head 11 can be the folder section 20 in the interior hexagonal shape of having of hollow form space, in the folder section 20 interior Anti-skid structures that arrange, Anti-skid structure is that mainly folder section 20 inboards arrange totally three anti-skidding 30, and each anti-skidding 30 distribution is angle 30 degree, at a distance of about 90 degree, therefore, six press from both sides one anti-skidding 30 of side 21 compartment of terrains formation.Be hexagon ring in described folder section 20, folder section 20 each inner side edges are folder side 21, folder section 20 is interior hexagons, have six folder sides 21, each presss from both sides and is the inner angle 23 of corner between side 21, it also has six inner angles 23, of the present utility model anti-skidding 30 namely be arranged at the folder 23 places, the close inner angle of side 21, aforementioned folder side 21 has towards the little radian of central point direction dimpling; Described anti-skidding 30 comprises first and allows groove 31, first and two sting tooth 32,33.concrete distribution kenel position, as shown in Figure 2, 23 centers, inner angle are about 3.1/30 towards 3.1 degree ratios of folder side 21 angular separations and are the starting end that folder side 21 is the plane, thus starting end radially approximately 13.2 degree angle ratios be 2.2/5 to form first of arcs of recesses and allow groove 31, and the first angular range that allows groove 31 form be for 7.5 degree ratios be 7.5/30, first allows groove 31 opening parts be 2.2/5 to sting tooth 32 for tip-angled shape first forming 13.2 degree ratios respectively, and first stings between tooth 32 angle is 7.5 degree and stings tooth 33 for tip-angled shape second, making the second angle of stinging between folder side 21 centers of anti-skidding 30 of tooth 33 and described formation is that 6.2 degree ratios are 2.1/10, again, 23 centers, inner angle and first allow the center angle of groove 31 be that 20 degree ratios are 2/3, the first to allow groove 31 centers to the folder side center of anti-skidding 30 of described formation, and mutual angle is that 10 degree ratios are 1/3.

When therefore using, if screw lock module head rounding or situation in obtuse angle, can utilize in folder section 20 and press from both sides respectively that side 21 covers enclose head and during turn, utilize the place's contact of the folder inboard dimpling of side 21, and sting by first and second head that tooth 3233 is bitten screw lock module, using increases the CONTACT WITH FRICTION area, and splendid skid resistance is provided, promote contact friction force and snap-in force, and can pull smoothly the head screw lock module of rounding.

Be the example of sleeve 40 as shown in Figure 3, Figure 4, sleeve 40 is interior arranges the folder section 50 of hex slot shape, folder section 50 also is provided with the folder side 51 of hexagon, folder side 51 in the interval arranges one anti-skidding 30, and each anti-skidding 30 forms first and second as the identical angle of described Fig. 2, position and sting tooth 3233 and first and allow groove 31.In sleeve 40, the folder section 20 of form like this and anti-skidding 30 are set, allow instrument pull smoothly the head screw lock module of rounding, allow the sleeve 40 splendid anti-skidding interlock effects of performance.

Be to be understood that, although this specification is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technical scheme in each embodiment also can through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.

Above listed a series of detailed description is only illustrating for feasibility embodiment of the present utility model; they are not to limit protection domain of the present utility model, all disengaging within equivalent embodiment that the utility model skill spirit does or change all should be included in protection domain of the present utility model.

Claims

1. the anti-skid structure of a closed type clamp part, described folder section is for being enclosed interior hexagonal shape space, each inner side edge of described folder section is the folder side, each presss from both sides and is interior acute angle between side, at the nearly described interior acute angle of the described folder side at interval, one anti-skidding section is set respectively, totally three anti-skidding sections, described folder side has the little radian towards the center position dimpling, described skid-proof regions scope is angle 30 degree, and each skid-proof regions is at a distance of about 90 degree;

Described anti-skidding section comprise first allow groove, first, second stings tooth;

described interior acute angle center towards described folder side direction ratio be 3.1/30 3.1 the degree angles be the starting end of described folder side, be that 2.2/5 13.2 degree angles form first of concave arcs dress and allow groove in the ratio of starting end, described first allow the groove angular range be ratio be 7.5/30 7.5 the degree, described first to allow the channel opening place form respectively aforementioned 13.2 degree positions be to sting tooth for first of tip-angled shape, and and described first sting angle between tooth and be 7.5 degree and sting tooth for second of tip-angled shape, described second to sting tooth and form ratio between the described folder side center of described anti-skidding section be 3.1/15 6.2 degree angles,

Described interior acute angle center and described first allows the ratio of center of groove be 2/3 20 degree angles, and described first allows the groove center place be 1/3 10 degree angles to the described folder side center ratio that forms described anti-skidding section.

2. the anti-skid structure of closed type clamp part according to claim 1, is characterized in that, described enclosed folder section can be formed at the pulling head of spanner one end.

3. the anti-skid structure of closed type clamp part according to claim 1, is characterized in that, described enclosed folder section can be formed at sleeve.