CN202344472U

CN202344472U - Quick-release screwdriver head device

Info

Publication number: CN202344472U
Application number: CN2011203776637U
Authority: CN
Inventors: 孟继芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-07-25
Anticipated expiration: 2021-09-29

Abstract

The utility model relates to a quick-release screwdriver head device which comprises a connection rod, a limiting block, steel balls and a movable lining, wherein the external periphery of the connection rod is provided with a location slot, the other side of the connection rod, opposite to the location slot, is provided with a clamp ditch, a shackle is clamped in the clamp ditch, the end of the connection rod is provided with a movement slot in an axial direction, the movement slot is internally provided with a magnet piece and an internal elastic piece, the magnet piece is arranged between the opening of the movement slot and the internal elastic piece, and the bottom of the location slot is provided with a sliding ditch communicated with the movement slot; the limiting block is arranged in the location slot in an assembling manner, corresponds to the shape of the location slot and is provided with a step part corresponding to the clamp ditch, and one end of the limiting block is provided with a containing slot communicated with the sliding ditch; the steel balls are arranged in the slide slot and the containing slot; and the movable lining is sheathed on the periphery wall of the connection rod, the internal edge of one end of the movable lining is provided with a compressing ring surface in a retracted shape, the compressing ring surface presses and props against the steel balls, and the internal wall of the movable lining is assembled and connected with a fixed closing ring. According to the device, the effects of single hand operation, tight clamp, and easiness in dismounting can be achieved, and a tool head can be protected from being damaged.

Description

Take off the screwdriver head device soon

Technical field

The utility model relates to getting when a kind of tool heads is connected to connecting rod singlehandedly operates and closely clamping or the screwdriver head device that is easy to dismantle particularly a kind of screwdriver head device that takes off soon.

Background technology

Start building historical being of long duration of use of tool of spiral shell; Its style, structure kenel are along with the difference of manufacturer and environment for use; And present multiple different structure; And for the spiral shell spare in response to different size on the market, manufacturer has has just researched and developed the connecting rod structure of replaceable various screwdriver head instrument, so that let the consumer come the spiral shell tool of starting building.

Yet when having connecting rod clamping screwdriver head now, only be to pull in the unfilled corner place at this screwdriver head outer rim hexagonal water chestnut line place, because of this clamping piece is a steel ball through the end top of this clamping piece protrusion; Steel ball and this unfilled corner are merely and contact, and contact area is little, the active force concentrations; Be difficult to effectively make steel ball to promote the extension bar slippage; And can't reach engagement completely, its fastening effect is relatively poor relatively, and makes the steadiness when using reduce.

Add the user that is taken in and be drilled with when accomplishing, when desire dismounting drill bit uses to change another screwdriver head, then need use the spiral shell tool of changing a job to do trifling dismounting action; And making replacing dismounting action very consuming time, the operation that adds extension bar often is operation in having the occasion of oil stain, therefore; In the pulling lining, be easy to take place the problem of finger and lining slip; Pulling sleeve that can't be certain is formed on the puzzlement that is connected on screwdriver head or the replacing screwdriver head, and significantly reduces operating efficiency.

In view of this; Product on the existing market, the utility model is hoped the improvement by structure, has solved the existing in the past fastening poor effect of connecting rod structure, can't the convenient disappearance of changing screwdriver head improve; Provide a kind of fastening effect preferable; And can spur the connecting rod structure of helping pull a cart easily, it all can be helped pull a cart with one hand in can be in all case easily, making helps pull a cart moves to the effect of off-position whereby; And then obtain to replace fast screwdriver head or be connected screwdriver head, reach the market competitiveness that the screwdriver head device is taken off in lifting soon.

The utility model content

The utility model technical problem underlying to be solved is, overcomes the above-mentioned defective that prior art exists, and a kind of screwdriver head device that takes off soon is provided, and reaches that one hand is operated, closely clamping, is easy to dismantle and protect tool heads to avoid the effect of damaging.

The utility model solves the technical scheme that its technical problem adopted:

A kind of screwdriver head device that takes off soon, it comprises a connecting rod, a limited block, a steel ball and a loose bush, wherein:

This connecting rod; Its outer peripheral edges are provided with a locating slot, and this connecting rod relative positioning groove opposite side is provided with Yi Kagou, and a butt ring is arranged in Ka Gou; This connecting rod end is axially arranged with a group-connecting groove; Group is provided with elastic component in a magnet iron piece and in this group-connecting groove, and this magnet iron piece is located between group-connecting groove notch and interior elastic component, and this locating slot bottom is provided with the sliding ditch of a connection group-connecting groove;

This limited block, it is mounted on this locating slot, the corresponding locating slot shape of this limited block, the corresponding Ka Gou of this limited block is provided with single order portion, and this limited block one end offers the groove that accommodates of the sliding ditch of a connection;

This steel ball, it is slidedly arranged on this cunning ditch and accommodates in the groove;

This loose bush; It is sheathed on this connecting rod outer rim perisporium, and this loose bush one end inner edge is provided with the packing anchor ring of a recessed shape, and this packing anchor ring compresses steel ball; This loose bush inwall winding one solid cyclization; Be provided with between this connecting rod and loose bush one be sheathed on connecting rod elastic component, this elastic component one end is connected to butt ring and rank portion, the other end is connected to this solid cyclization;

Whereby; The packing anchor ring compresses steel ball and comes the packing desire to insert the tool heads of connecting rod toward the group-connecting groove direction; And the involution after the relative connecting rod displacement of elastic component pushing and pressing loose bush, and break away from when packing anchor ring and steel ball, let then tool heads is crowded to be opened steel ball and deviate from group-connecting groove; And interior elastic component involution pushing and pressing magnet iron piece is toward the displacement of group-connecting groove notch; When letting tool heads deviate from group-connecting groove relatively, receive the unlikely group-connecting groove notch that falls to of magnetic attraction outer and be connected to notch surface, reach that one hand is operated, closely clamping, be easy to dismantle and protect tool heads to avoid the effect of damaging.

Product on the existing market, the utility model take off the screwdriver head device soon, it is with the design of the relative steel ball start of loose bush, reaching one hand can operate, and the tool heads effect that gets tight clamping or be easy to dismantle when being connected to connecting rod.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the utility model perspective exploded view.

Fig. 2 is the utility model winding sketch map.

Fig. 3 is the utility model generalized section.

Fig. 4 implements view for the utility model.

Label declaration among the figure:

1 connecting rod, 11 locating slots

12 card ditches, 13 group-connecting grooves

14 sliding ditch 2 limited blocks

21 rank portions 22 accommodate groove

3 steel balls, 4 loose bush

41 packing anchor rings, 5 butt rings

Elastic component in 6 magnet iron pieces 7

8 solid cyclization 9 elastic components

The specific embodiment

It is respectively the utility model perspective exploded view, the utility model winding sketch map and the utility model generalized section to see also Fig. 1 to Fig. 3; In the utility model embodiment, include a connecting rod 1, a limited block 2, a steel ball 3 and a loose bush 4, wherein:

Connecting rod 1 outer peripheral surface offers a locating slot 11, and connecting rod 1 surperficial relative positioning groove 11 opposite sides also are provided with a card ditch 12, and should card ditch 12 semicirculars in shape; The butt ring 5 of one arc is arranged in card ditch 12, and connecting rod 1 is axially arranged with a group-connecting groove 13 in the end, and in this embodiment group-connecting groove 13 corresponding screwdriver heads and be designed to the hexangle type notch; It also can cooperate the article of desiring winding and offer into other shape; But this and the scope discussed of patent desire are not for this reason then given unnecessary details at this, and group-connecting groove 13 in, organize and be provided with elastic component 7 in a magnet iron piece 6 and; Magnet iron piece 6 is located at 7 of group-connecting groove 13 notches and interior elastic components; Locating slot 11 bottoms be provided with one be communicated with group-connecting groove 13 sliding ditch 14, and the cunning ditch is rounded design, so that steel ball 3 can be mounted in the sliding ditch 14;

Limited block 2 is mounted on locating slot 11 inside, and limited block 2 corresponding locating slot 11 shapes design, and limited block 2 corresponding card ditches 12 are provided with single order portion 21, and limited block 2 one ends offer one be communicated with sliding ditch 14 accommodate groove 22; And in present embodiment, what this limited block 2 became a circular hole with connecting rod 1 winding accommodates groove 22, and both then are respectively equipped with semi-circular breach design limited block 2 and connecting rod 1; Steel ball 3 is slidedly arranged on this cunning ditch 14 and accommodates in the groove 22, and steel ball 3 receives the pushing and pressing of limited block 2 and move up and down with accommodating to appear in the groove 22 at sliding ditch 14, carries out affixed each other or disengaging so as to making screwdriver head and connecting rod 1;

Loose bush 4 is sheathed on connecting rod 1 outer rim perisporium; Loose bush 4 in the end inner edge that connecting rod 1 is provided with the end of group-connecting groove 13 be provided with a running-on by outside toward the packing anchor ring 41 of the recessed shape of interior expansion; Packing anchor ring 41 compresses steel ball 3 surfaces, makes steel ball 3 do moving up and down in the groove 22 with accommodating in sliding ditch 14; The solid cyclization 8 of loose bush 4 inwall windings one, 4 of connecting rod 1 and loose bush be provided with one be sheathed on connecting rod 1 elastic component 9, elastic component 9 one ends are connected to butt ring 5 and rank portion 21; The other end is connected to this solid cyclization 8; When the application of force not, packing anchor ring 41 compresses steel ball 3 toward group-connecting groove 13 direction packing tool heads, and after the application of force makes these loose bush 4 relative connecting rod 1 slippages; Can let this packing anchor ring 41 and steel ball 3 break away from, make tool heads must squeeze out steel ball 3 and deviate from group-connecting groove 13.

It implements view for the utility model to see also Fig. 4; At this moment; See also Fig. 1 to Fig. 3, packing anchor ring 41 compresses steel ball 3 and comes the packing desire to insert the tool heads of connecting rod 1 toward group-connecting groove 13 directions, and the involution after 4 relative connecting rod 1 displacements of elastic component 8 pushing and pressing loose bush; And when packing anchor ring 41 and steel ball 3 disengagings; Then let tool heads squeeze to open steel ball 3 and deviate from group-connecting groove 13, and interior elastic component 7 involutions pushing and pressing magnet iron piece 6 is toward group-connecting groove 13 notch displacements, when letting tool heads deviate from group-connecting groove 13 relatively; Receive unlikely group-connecting groove 13 notches that fall to of magnetic attraction outer and be connected to notch surface, reach that one hand is operated, closely clamping, be easy to dismantle and protect tool heads to avoid the characteristics of damaging.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.

In sum; The utility model is on structural design, use practicality and cost benefit; It is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, has novelty, creativeness, practicality; The regulation that meets relevant novel patent requirement is so mention application in accordance with the law.

Claims

1. one kind is taken off the screwdriver head device soon, it is characterized in that, comprises a connecting rod, a limited block, a steel ball and a loose bush, wherein:

This loose bush; It is sheathed on this connecting rod outer rim perisporium, and this loose bush one end inner edge is provided with the packing anchor ring of a recessed shape, and this packing anchor ring compresses steel ball; This loose bush inwall winding one solid cyclization; Be provided with between this connecting rod and loose bush one be sheathed on connecting rod elastic component, this elastic component one end is connected to butt ring and rank portion, the other end is connected to this solid cyclization.