CN201720806U

CN201720806U - Replaceable screw locking set

Info

Publication number: CN201720806U
Application number: CN2010202237771U
Authority: CN
Inventors: 王子建
Original assignee: ZHOUSHENG INDUSTRY Co Ltd
Current assignee: ZHOUSHENG INDUSTRY Co Ltd; Compass Corp
Priority date: 2010-06-12
Filing date: 2010-06-12
Publication date: 2011-01-26
Anticipated expiration: 2020-06-12

Abstract

A replaceable screw locking set comprises a sleeve, an elastic fastener and a screwdriver bit. A through inner hole is formed in the sleeve, an abutting end is arranged at one end of the sleeve, and an annular groove is formed in the wall of the inner hole at the other end of the sleeve. The elastic fastener is arranged in the annular groove of the sleeve. The screwdriver bit comprises a screw connecting end and a tool connecting end respectively arranged at two ends, an annular fastening groove is formed between the screw connecting end and the tool connecting end, the screwdriver bit is detachably mounted in the inner hole of the sleeve, the screw connecting end extends out of the abutting end of the sleeve in a projecting manner, and the elastic fastener is abutted to the position of the annular fastening groove in a fastening manner so that the screwdriver bit is positioned in the sleeve. The replaceable screw locking set increases variability and convenience of the sleeve in use, simultaneously improves durability of the sleeve, and omits damage on the surface of a wooden workpiece in screw locking construction.

Description

Replaceable screw closure cover group

Technical field

The utility model relates to a kind of screw closure cover group, relates in particular to the screw closure cover group of the replaceable use of a kind of screwdriver head.

Background technology

Locking sleeve is to apply on the screw closure tool with auxiliary screw closure operation, the stability when using with increase.

Existing sleeve design is single ducted body object, directly screwdriver head is penetrated in the sleeve, wherein the screw link portion of screwdriver head is positioned at sleeve, ending tool connection end then is piercing in the sleeve outside in addition, again with sleeve and the fixed one of screwdriver head, during use, jacket casing is located at the screw terminal outer rim, and make the screw connector of screwdriver head insert the groove at screw terminal top, when the Rotating opener head, screw can be locked in the workpiece, and the stability when sleeve improves screw closure, and when sleeve ends to contact wooden surface of the work spacing, the periphery of avoiding screw to screw in wooden workpiece place produces the be full of cracks situation.

Only, above-mentioned existing structure is with sleeve and the fixed one of screwdriver head, so for the screw terminal of different types or size, must the preparation different size, the sleeve and the screwdriver head of pattern, the worker that causes must prepare diversified tube-in-tube structure, reaches problems such as occupying the tool box in a large number and increase cost.

In addition as the novel M372241 number disclosed sleeve of " locking sleeve " patent case of TaiWan, China, it is the combination that utilizes the hollow body and a body of rod of a flexible material, the passage of hollow body has stopper slot, the conch shape of the corresponding screw of stopper slot and be the pushing and drawing shape of tool indent radian, the body of rod one end stretches in the stopper slot and engages with the screw terminal top groove, and the other end links to each other with screw closure tool.Though this structure provides a kind of tube-in-tube structure of changeable type, yet, because this body of rod has the shape, outer peripheral face size at junction surface, clip engine part, each position of extension all different, utilize the elastic characteristic of flexible material that body is engaged with the body of rod, adaptation is not good, and through repeatedly lasso trick and dismounting, the situation of elastic fatigue appears in flexible material easily, and therefore can reduce the service life of sleeve.

In addition, with upper bush in use, screw terminal all stretches into sleeve, is fixed on the sleeve, thus, screw terminal can protrude in surface of the work after construction, but for attractive in appearance or security consideration, doing some construction, as carpenter etc., often need screw terminal is imbedded under the wooden surface of the work, these a little sleeves all can't be done this application.

The utility model content

Technical problem underlying to be solved in the utility model is, overcome the above-mentioned defective that prior art exists, and provide a kind of replaceable screw closure cover group, increase diversity and convenience that sleeve uses, improve the durability of sleeve simultaneously, and improve screw closure when construction the destruction that wooden surface of the work is caused.

Take off purpose for before reaching, the utility model designs a screw closure cover group, it is characterized in that, comprising: a sleeve, form an endoporus that runs through in this sleeve, and sleeve one end forms a ring groove for supporting not-go-end portion in the endoporus hole wall of the sleeve other end; One elasticity button is to be arranged in the ring groove of sleeve; One screwdriver head, it comprises a screw and connects end and an instrument link partly in two ends, and connect the end in screw and be connected formation one ring-type snapping groove between the end with instrument, in the endoporus that is installed on sleeve that screwdriver head is removable group, screw connects the end and protrudes out supporting outside the not-go-end portion of sleeve, elasticity button button is butted on ring-type snapping groove, and screwdriver head is positioned in the sleeve.In addition, this screw connects the end and protrudes out supporting outside the not-go-end portion of sleeve, and this screw connects end shape and the screw head shape matches, and this instrument connection end can be polygonal body and electric tool joins.

Aforesaid replaceable screw closure cover group, wherein endoporus forms a recess in the contiguous not-go-end portion place that supports.

Aforesaid replaceable screw closure cover group, wherein instrument connects the endoporus aperture of outer end diameter greater than sleeve.

Aforesaid replaceable screw closure cover group, wherein the elasticity button is that the C type is buckled.

Do not having under the situation of the application of force, this screw connects the end and can't buckle by sleeve elasticity near place in the middle of the screwdriver head, when screwdriver head is applied external force, the elasticity button is stressed and strut, it is big that the endoporus aperture of sleeve becomes, make screw connect the end and can run through sleeve, when screw connects the end by behind the sleeve, this elasticity button recovers original size, therefore screwdriver head and sleeve utilize ring groove and elasticity to buckle clip engine part as lasso trick, also execute external force during dismounting and screwdriver head and sleeve are separated with same principle, very convenient in the use.This sleeve also can be protected wooden surface of the work, destroyed or be full of cracks when avoiding its DRIVE SCREWS.

The utility model beneficial effect is, increases diversity and convenience that sleeve uses, improves the durability of sleeve simultaneously, and when improving the screw closure construction, the destruction that wooden surface of the work is caused.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic diagram of a preferred embodiment of the replaceable screw closure cover of the utility model group.

Fig. 2 is the each several part decomposing schematic representation of a preferred embodiment of replaceable screw closure cover group shown in Figure 1.

Fig. 3 is the side-looking generalized section of a preferred embodiment of replaceable screw closure cover group shown in Figure 1.

Fig. 4 is the 4-4 face line top cross-sectional view of a preferred embodiment of replaceable screw closure cover group shown in Figure 3.

Fig. 5 is the side-looking generalized section of a preferred embodiment of the replaceable screw closure cover of the utility model group.

Fig. 6 is the side-looking generalized section of a preferred embodiment of the replaceable screw closure cover of the utility model group.

Fig. 7 is the side-looking generalized section of a preferred embodiment of the replaceable screw closure cover of the utility model group.

Fig. 8 is the application schematic diagram of a preferred embodiment of replaceable screw closure cover group shown in Figure 1.

The number in the figure explanation:

1 sleeve, 10 endoporus

100 recesses 11 support not-go-end portion

12 ring grooves, 2 screwdriver heads

20 screws connect end 21 instruments and connect the end

22 ring-type snapping grooves, 3 elasticity buttons

4 electric tools, 5 screws

5 screw terminals, 6 wooden surface of the works

The specific embodiment

Extremely shown in Figure 8 as Fig. 1, be that the replaceable screw closure cover of the utility model is organized several preferred embodiments, this screw closure cover group is the sleeve 1 that comprises a hollow form, one can wear the screwdriver head 2 and the elasticity that are combined in the sleeve 1 buckles 3, this sleeve 1 is integrally formed member, form an endoporus that runs through 10 in this sleeve 1, provide screwdriver head 2 to wear wherein, sleeve 1 one ends are for supporting not-go-end portion 11, endoporus 10 forms a recess 100 in contiguous not-go-end portion 11 places that support, sleeve 1 in endoporus 10 hole walls in forming a ring groove 12 away from an end that supports not-go-end portion 11, provide this elasticity button 3 located therein, this elasticity button 3 is that the C type is buckled in the preferred embodiment of the present utility model.

This screwdriver head 2 is integrated members, it comprises a screw and connects end 20 and be connected end 21 minutes with an instrument in screwdriver head 2 two ends, connect end 20 in screw and be connected formation one ring-type snapping groove 22 between the end 21 with instrument, aforementioned screw connects end 20 and can be the cross that is complementary with the screw head shape, in-line, pattern such as polygon such as Fig. 5 are to shown in Figure 7, instrument connects end 21 and can be polygonal body, in the endoporus that is installed on sleeve 1 10 that screwdriver head is 2 removable groups, be butted on ring-type snapping groove 22 places by elasticity button 3 buttons, screwdriver head 2 is positioned in the sleeve 1, and screw connects end 20 and protrudes out supporting outside the not-go-end portion 11 of sleeve 1.The external diameter that instrument connects end 21 can stretch in the endoporus 10 of sleeve 1 the screw connection end 20 and the ring-type snapping groove 22 of screwdriver head 2 greater than endoporus 10 apertures of sleeve 1, and instrument connects end 21 and is positioned at sleeve 1 outside.

The sleeve 1 of screw closure cover group of the present utility model and screwdriver head 2 all can be made by the metal or alloy of any kind of.This screw connects end 20 near place in the middle of the screwdriver head 2, do not having under the situation of the application of force, can't run through sleeve 1 elasticity and buckle 3 places, need apply an external force during use, make elasticity button 3 and strut, the endoporus 10 aperture moment changes of sleeve 1 part are big, make screw connect end 20 and can pass through sleeve 1, when screw connects end 20 by behind the sleeve 1, this elasticity button 3 is borrowed the elastic force of itself, reply original size, and the periphery of this ring-type snapping groove 22 directly is slightly less than the interior Zhou Jing of these elasticity button 3 sleeves 1, so this ring-type snapping groove 22 is as the clip engine part of screwdriver head 2 with this sleeve 1 lasso trick with elasticity button 3.After making screw connection end 20 pass endoporus 10, buckle 3 with sleeve 1 through this ring-type snapping groove 22 and elasticity and fix, during dismounting, also execute external force screwdriver head 2 and sleeve 1 are separated, so, make sleeve 1 can provide the user to comply with its required suitable screwdriver head 2 that changes the outfit.

As shown in Figure 5, during use, select the screwdriver head 2 of suitable length form, this screwdriver head 2 passed endoporus 10, with sleeve 1 see through this ring-type snapping groove 22 and elasticity buckle 3 fixing after, instrument is connected the rotation that end 21 is arranged in electric tool 4 to be done in the moved end, screw terminal 50 lasso tricks to screw with screw 5 connects on the end 20 again, and supports the not-go-end portion 11 that supports that is affixed on sleeve 1, and screw 5 is aimed at wooden surface of the work 6, open electric tool 4 switches, can begin operation.Because connecting end 20, screw protrudes out supporting outside the not-go-end portion 11 of sleeve 1; the screw terminal 50 of screw 5 can be imbedded wooden surface of the work and make the comparatively attractive in appearance and safety of wooden workpiece for 6 times; wherein utilize the not-go-end portion that supports 11 of the utility model screw closure cover group sleeve 1 wooden surface of the work 6 of fitting spacing; the surface, the screw 5 spiral shell places of establishing of reducing workpiece is subjected to excessive active force; so can protect wooden surface of the work 6; if screw head 50 desires to stretch into the degree of depth difference of wooden surface of the work 6; or the shape difference of screw terminal 50 tooth portion grooves; need not change whole group screw closure cover group yet; only needing to change length difference or screw connection end 20 variform screwdriver heads 2 gets final product; very convenient in the use, also escapable cost.

Comprehensive above-mentioned explanation can be learnt, this replaceable screw closure cover group mainly utilizes ring-type snapping groove 22 and elasticity to buckle 3 fastening, make lasso trick and dismounting easily between sleeve 1 and the screwdriver head 2, can the arrange in pairs or groups screwdriver head 2 of multiple different types or specification of single sleeve 1 is replaced and is used, and it is spacing to support the wooden surface of the work of not-go-end portion 11 contacts 6 by sleeve 1, and the periphery of avoiding screw to screw in wooden workpiece place produces the be full of cracks situation.

Claims

1. a replaceable screw closure cover group is characterized in that, comprising:

One sleeve forms an endoporus that runs through in this sleeve, sleeve one end forms a ring groove for supporting not-go-end portion in the endoporus hole wall of the sleeve other end;

One elasticity button is to be arranged in the ring groove of sleeve;

One screwdriver head, it comprises a screw and connects end and an instrument link partly in two ends, and connect the end in screw and be connected formation one ring-type snapping groove between the end with instrument, in the endoporus that is installed on sleeve that screwdriver head is removable group, screw connects the end and protrudes out supporting outside the not-go-end portion of sleeve, elasticity button button is butted on ring-type snapping groove, and screwdriver head is positioned in the sleeve.

2. replaceable screw closure cover group according to claim 1 is characterized in that: described endoporus forms a recess in the contiguous not-go-end portion place that supports.

3. replaceable screw closure cover group according to claim 1 and 2 is characterized in that: described instrument connects the endoporus aperture of outer end diameter greater than sleeve.

4. replaceable screw closure cover group according to claim 1 and 2 is characterized in that: described elasticity button is that the C type is buckled.

5. replaceable screw closure cover group according to claim 3 is characterized in that: described elasticity button is that the C type is buckled.