CN204640079U

CN204640079U - Tool-joint

Info

Publication number: CN204640079U
Application number: CN201520241897.7U
Authority: CN
Inventors: 王子建
Original assignee: ZHOUSHENG INDUSTRY Co Ltd
Current assignee: ZHOUSHENG INDUSTRY Co Ltd; Compass Corp
Priority date: 2015-04-21
Filing date: 2015-04-21
Publication date: 2015-09-16
Anticipated expiration: 2025-04-21

Abstract

A kind of tool-joint, comprise a connection-peg, a supporting device, a sliding bush apparatus, and this connection-peg front tool jack, rear tool extension bar, first and second radial hole is set respectively in jack front and rear, and first and second positioning bead is set respectively in first and second radial hole position; Again in connection-peg front arranged outside first baffle ring; Supporting device comprises one and holds seat, a magnet, and this holds seat and is located at jack rear, and manufactured by plastic material, front tool groove, and rear forming device can with jack diapire against elastic portion, this front end, groove side tool recess again, and corresponding recess rear tool can hold the butting section of the second positioning bead; This magnet is located at and is held in the groove of seat again; Baffle ring, a spring after sliding bush apparatus tool one body, again, and this body central authorities tool can be sheathed on the trepanning in connection-peg front, and this trepanning front inwall tool can against the second guiding incline of the first positioning bead; The utility model can have better action stability and a reduction assembly cost whereby.

Description

Tool-joint

Technical field

The utility model, about a kind of tool-joint, mainly refers to a kind of joint of pluggable screwdriver head, and can have better action stability and a minimizing assembly cost.

Background technology

The main tool slot of known joint, and in this slot can the screwdriver head of grafting different types on demand to promote applicable effect, and this joint is through updating the joint design having at present and can screwdriver head be made fast to depart from, be illustrated in figure 6 one of conventional construction, main tool one connection-peg 1 ', one supporting device 2 ', sliding bush apparatus 3 ', and the jack 11 ' of the pluggable screwdriver head 4 ' of this connection-peg 1 ' front end tool, rear arrange can with manually, pneumatic, the extension bar 10 ' of electric tool combination, again in jack 11 ' front, central authorities arrange radial hole 12 ' respectively, 13 ', and this radial hole 12 ', 13 ' position arranges steel ball 121 ' respectively, 131 ', again the first block edge 14 ' is set in jack 11 ' inwall, and groove 15 ' is set in connection-peg 1 ' outer wall, and establish baffle ring 16 ' in groove 15 ' group, supporting device 2 ' comprises one and holds seat 21 ', a magnet 22 ', a spring 23 ' again, and this holds seat 21 ' and is located at the corresponding first block edge 14 ' rear position of jack 11 ', and can in the upper axial displacement of jack 11 ', again groove 211 ' is set in central authorities, and outside front ends tool recess 212 ', rear end, outside tool can against the abutment edge 213 ' of steel ball 131 ', and rectangular a between abutment edge 213 ' and recess 212 ', and tool can with the first block edge 14 ' against the second block edge 214 ', this magnetic MTR 22 ' is located in groove 211 ' again, jack 11 ' rear is located at by this spring 23 ' again, and two ends respectively with jack 11 ' bottom extension bar 10 ', magnetic MTR 22 ' against and supporting device 2 ' action elasticity is provided, sliding bush apparatus 3 ' tool body 31 ' again, rear baffle ring 32 ', spring 33 ', front baffle ring 34 ', and this body 31 ' is located at connection-peg 1 ' outside, central authorities' tool trepanning 311 ', and trepanning 311 ' front tool diameter is less and can against the retaining wall 312 ' of steel ball 131 ', the recess 313 ' that rear tool diameter is larger, again, baffle ring 32 ' is located at trepanning 311 ' rear, this spring 33 ' is located between rear baffle ring 32 ' and baffle ring 16 ' again, and body 31 ' action elasticity can be provided, this front baffle ring 34 ' is located at trepanning 31 ' front end again, and can against joint 1 ' front end, again as shown in Figure 7, supporting device 2 ' can be driven to move and Compress Spring 23 ' after jack 11 ' when grafting screwdriver head 4 ' is in jack 11 ', and make the correspondence steel ball 131 ' position, recess 212 ' position holding seat 21 ', make steel ball 131 ' can to recess 212 ' displacement, and make sliding sleeve 3 ' can by the elastic force of spring 33 ' backward displacement make retaining wall 312 ' can against steel ball 131 ', and front baffle ring 34 ' can against connection-peg 1 ' front end, the draw-in groove 41 ' of this screwdriver head 4 ' can engage with steel ball 121 ' and locates again.

When body 31 ' being made to move forward to as Fig. 6 position for user during taking-up screwdriver head 4 ', and make steel ball 131 ' can to recess 313 ' displacement, so hold seat 21 ' and can move forward by the elastic force of spring 23 ' and hold screwdriver head 4 ' and take out fast towards jack 11 ' lateral displacement.

But aforementioned structure still lacks below tool:

1, two independent springs 23 ', 34 ' and block 16 ', backstop 32 ', front baffle ring 34 ' complex assemblies must be set, assembling inconvenience, and assembly cost and fault rate will be increased.

If when 2, screwdriver head 4 ' inserts jack 11 ' steel ball 131 ' can not rapidly towards recess 212 ' direction displacement will cause body 31 ' backward displacement action engage and to have some setbacks situation.

3, for take out screwdriver head 4 ' and forward body 31 ' time this holds seat 21 ' by a position, right angle between abutment edge 213 ' and recess 212 ' against the displacement of steel ball 131 ' outward radial, but a position, this right angle holds and easily causes locking action to have some setbacks situation.

Utility model content

The purpose of this utility model is providing a kind of tool-joint, and it can have better action stability and a minimizing assembly cost.

For reaching above-mentioned purpose, solution of the present utility model is:

A kind of tool-joint, comprising:

One connection-peg, front has jack, and rear has extension bar, and arranges first and second radial hole respectively in jack front and rear, and arranges first and second positioning bead respectively in first and second radial hole position; Again in connection-peg arranged outside first baffle ring;

One supporting device, comprises one and holds seat, a magnet, and this holds seat and is located at jack rear, front tool groove, and rear shaping have can with jack diapire against elastic portion, this front end, groove side has recess again, and corresponding recess rear has the butting section that can hold the second positioning bead; This magnet is located at and is held in the groove of seat again;

One sliding bush apparatus, has a body, baffle ring, a spring after one, and these body central authorities have the trepanning that can be sheathed on connection-peg front, and this trepanning front inwall have can against the second guiding incline of the first positioning bead; This rear baffle ring is fixedly arranged on trepanning rear again, and front side has front wall, and have can against the side block wall of the second positioning bead and can the recess of accommodating second positioning bead partial volume in inner side, again this spring two end respectively with the front wall of the first baffle ring and rear baffle ring against, and provide cover body action elasticity.

Further, hold seat and manufactured by plastic material, and its elastic portion is helical-body.

Further, this first and second positioning bead can be steel ball, and this recess holding seat has the breach be communicated with groove again; Again this magnet be located at hold seat groove in time its side corresponding gap position be exposed.

Further, hold between the recess of seat and butting section and arrange by front rearward towards the first guiding incline holding the inclination of seat ring circumferential direction.

Further, on front side of the recess of rear baffle ring, there is leading hypotenuse.

Further, the corresponding second radial hole anterior position of the jack of connection-peg arranges that diameter is comparatively large, rear position diameter is less and forms block edge.

Further, connection-peg front arranged outside groove, and engage first gear ring in this groove.

Further, the trepanning of body arranges the diameter holding part large compared with front in the second guiding incline rear, and trepanning holding part position is located at by this spring again, and two ends respectively with the front wall of the first baffle ring and rear baffle ring against.

During the non-grafting screwdriver head of action the utility model, this butting section holding seat can against the second positioning bead, and make the second positioning bead partial volume embed in the recess of backstop, and Compress Spring; Can make when screwdriver head inserts jack again after holding seat and move elasticity of compression portion, and make recess location correspondence the second positioning bead holding seat, and the first positioning bead can be located against engaging with the draw-in groove of screwdriver head by the second guiding incline simultaneously, this second positioning bead can directly be subject to the suction of magnet fast towards the recess direction displacement holding seat again, and coordinate the design of leading hypotenuse to make body can by the displacement backward of the elastic force of spring, can have the smooth and easy effect of better action, and make the side block wall of rear baffle ring can with the second positioning bead against to guarantee that holding seat can not move forward; Body can be made to move forward time again for taking out screwdriver head, and hold seat and can hold reach by the elastic force of elastic portion screwdriver head can be moved forward taking-up, holding again the first guiding incline when seat moves forward can embed in the recess of rear baffle ring against the second positioning bead outward radial displacement, the smooth and easy stable effect of better action of can having, the utility model only single spring assembly of tool again, and after baffle ring can have and locate the second positioning bead and against spring action, black box can be simplified to have compared with conventional construction and be saved cost and better assembling is convenient and minimizing fault rate effect.

Accompanying drawing explanation

Fig. 1 is exploded view of the present utility model;

Fig. 2 is constitutional diagram of the present utility model;

Fig. 3 is assembled sectional view of the present utility model;

Fig. 4 is combination screwdriver head schematic diagram of the present utility model;

Fig. 5 is that passing body of the present utility model makes screwdriver head take out schematic diagram;

Fig. 6 is known joint schematic diagram;

Fig. 7 is known combination screwdriver head schematic diagram.

[symbol description]

1 connection-peg 11 jack 12 extension bar

13 first radial hole 131 first positioning bead 14 second radial holes

141 second positioning bead 15 block edge 16 grooves

17 first baffle ring 2 supporting devices 21 hold seat

211 groove 212 elastic portion 213 recesses

214 butting section 215 breach 216 first guiding inclines

22 magnet 3 sliding bush apparatus 31 bodies

311 trepanning 312 second guiding incline 313 holding parts

Baffle ring 321 front wall 322 side block wall after 32

323 recess 324 leading hypotenuse 33 spring

4 screwdriver head 41 draw-in groove 1 ' connection-pegs

11 ' jack 10 ' extension bar 12 ' radial hole

121 ' steel ball 13 ' radial hole 131 ' steel ball

14 ' first block edge 15 ' groove 16 ' baffle ring

2 ' supporting device 21 ' holds seat 211 ' groove

212 ' recess 213 ' abutment edge 214 ' second block edge

22 ' magnet 23 ' spring 3 ' sliding bush apparatus

31 ' body 311 ' trepanning 312 ' retaining wall

313 ' recess 32 ' is baffle ring 33 ' spring afterwards

34 ' front baffle ring 4 ' screwdriver head 41 ' draw-in groove.

Detailed description of the invention

In order to explain the technical solution of the utility model further, below by specific embodiment, the utility model is elaborated.

Refer to Fig. 1 to Fig. 4, the utility model comprises a connection-peg 1, one supporting device 2, one sliding bush apparatus 3, and this connection-peg 1 front has polygonal jack 11, rear has extension bar 12, and arrange one first respectively in jack 11 front and rear, two radial holes 13, 14, and in first, two radial holes 13, 14 positions arrange first respectively, two positioning beads 131, 141, and this first, two positioning beads 131, 141 can be steel ball, to arrange diameter larger for corresponding second radial hole 14 anterior position of this jack 11 again, rear position diameter is less, and formation can against the block edge 15 bottom screwdriver head 4, again in connection-peg 1 front arranged outside groove 16, and groove 16 engages the first baffle ring 17.

Supporting device 2 comprises one and holds seat 21, one magnet 22, and this holds seat 21 and is located at jack 11 rear, and manufactured by plastic material, front has groove 211, and rear shaping have can with jack 11 diapire against elastic portion 212, and this elastic portion 212 is helical-body, this front end, groove 211 side has recess 213 again, and corresponding recess 213 rear has the butting section 214 that can hold the second positioning bead 141, and this recess 213 has the breach 215 be communicated with groove 211, and arrange between recess 213 and butting section 214 by front rearward towards the first guiding incline 216 holding seat 21 ring circumferential direction and tilt, this magnet 22 is located at and is held in the groove 211 of seat 21 again, and corresponding breach 215 position of its side is exposed.

Sliding bush apparatus 3 has a body 31, baffle ring 32 after one, one spring 33, and these body 31 central authorities have the trepanning 311 that can be sheathed on connection-peg 1 front, and this trepanning 311 front inwall have can against the second guiding incline 312 of the first positioning bead 131, and the diameter holding part 313 large compared with front is set in the second guiding incline 312 rear, this rear baffle ring 32 is fixedly arranged on trepanning 311 rear again, and front side has front wall 321, and have can against the side block wall 322 of the second positioning bead 141 and can the recess 323 of accommodating second positioning bead 141 partial volume in inner side, and on front side of this recess 323, there is leading hypotenuse 324, trepanning 311 holding part 313 position is located at by this spring 33 again, and two ends respectively with the front wall 321 of the first baffle ring 17 and rear baffle ring 32 against, and provide body 31 action elasticity.

Refer to Fig. 3, during the non-grafting screwdriver head of the utility model, this butting section 214 holding seat 21 can against the second positioning bead 141, and make the second positioning bead 141 partial volume can embed in the recess 323 of backstop, and Compress Spring 33.

Refer to Fig. 4, can make when screwdriver head 4 inserts jack 11 after holding seat 21 and move elasticity of compression portion 212, and screwdriver head 4 bottom can be adsorbed with magnetic MTR 22, and make recess 213 position correspondence the second positioning bead 141 holding seat 21, and the first positioning bead 131 can engage location by the second guiding incline 322 against with the draw-in groove 41 of screwdriver head 4 simultaneously, and can by the block edge 15 in jack 11 against the maximum insertion depth of restriction bottom screwdriver head 4, this second positioning bead 141 can directly be subject to the suction of magnet 22 fast towards the recess 213 direction displacement holding seat 21 again, and coordinate the design of leading hypotenuse 324 to make body 31 can be easy to displacement backward by the elastic force of spring 33, can have the smooth and easy effect of better action, and make the side block wall 322 of rear baffle ring 32 can with the second positioning bead 141 against to guarantee that holding seat 21 can not move forward.

Refer to Fig. 5, body 31 can be made to move forward when the utility model is for taking out screwdriver head 4, and make the second guiding incline 322 not against the first positioning bead 131, and hold seat 21 and can hold reach by the elastic force of elastic portion 212 screwdriver head 4 can be moved forward taking-up, holding again the first guiding incline 216 when seat 21 moves forward can embed in the recess 323 of rear baffle ring 32 against the second positioning bead 141 outward radial displacement, the smooth and easy stable effect of better action of can having.

The utility model designs only tool single spring 33 assembly, and rear baffle ring 32 can have location second positioning bead 141 concurrently and act on against spring 33, and black box can be simplified with tool saving cost compared with conventional construction and better assembling is convenient and minimizing fault rate effect.

Can be adsorbed by magnet 22 and coordinate the leading hypotenuse 324 of the first guiding incline 216 and rear baffle ring 32 to design can significantly smooth and easy and stable effect of enhancing action for the utility model first positioning bead 131 again, and body 31 engages when can prevent operation, and previous embodiment is the utility model illustration, not the utility model restriction, all equivalence changes of doing according to the utility model spirit also should belong in the utility model category.

Claims

1. a tool-joint, is characterized in that, comprising:

One sliding bush apparatus, has a body, baffle ring, a spring after one, and these body central authorities have the trepanning that can be sheathed on connection-peg front, and this trepanning front inwall have can against the second guiding incline of the first positioning bead; This rear baffle ring is fixedly arranged on trepanning rear again, and front side has front wall, and have can against the side block wall of the second positioning bead and can the recess of accommodating second positioning bead partial volume in inner side, again this spring two end respectively with the front wall of the first baffle ring and rear baffle ring against.

2. tool-joint as claimed in claim 1, it is characterized in that: hold seat and manufactured by plastic material, and its elastic portion is helical-body.

3. tool-joint as claimed in claim 1 or 2, it is characterized in that: this first and second positioning bead is steel ball, this recess holding seat has the breach be communicated with groove again; Again this magnet be located at hold seat groove in time its side corresponding gap position be exposed.

4. tool-joint as claimed in claim 3, is characterized in that: hold between the recess of seat and butting section and arrange by front rearward towards the first guiding incline holding the inclination of seat ring circumferential direction.

5. tool-joint as claimed in claim 4, is characterized in that: have leading hypotenuse on front side of the recess of rear baffle ring.

6. tool-joint as claimed in claim 1, is characterized in that: the corresponding second radial hole anterior position of jack of connection-peg arranges that diameter is comparatively large, rear position diameter is less and forms block edge.

7. tool-joint as claimed in claim 1, is characterized in that: connection-peg front arranged outside groove, and engages first gear ring in this groove.

8. tool-joint as claimed in claim 1, it is characterized in that: the trepanning of body arranges the diameter holding part large compared with front in the second guiding incline rear, trepanning holding part position is located at by this spring again, and two ends respectively with the front wall of the first baffle ring and rear baffle ring against.