CN2291263Y - Ratchet D head of ratchet wrench capable of being quickly disassembled and replaced - Google Patents

Abstract

The utility model provides a ratchet spanner can tear ratchet D head that trades fast open, its structural feature sets up embedded block and direction adjusting knob at the spanner head, sets up the through-hole that the locating piece was laid on the ratchet of ratchet D head, and a shaft hole is seted up at the ratchet center for the push rod is inserted to ann, and the push rod can be transferred the direction and made the locating piece through the displacement of spring card rapidly solid in the slot on spanner head shaft hole wall or take off and leave this slot, realizes quick dismantlement and installation. The novel wrench can reduce the trouble of carrying a plurality of tools when an operator requires the wrench with various specifications and sizes, and can conveniently and quickly replace the D head of the ratchet wheel with the new specification, thereby providing a great deal of convenience for the operator.

Description

The ratchet spanner ratchet D head of fast changable

The utility model is a kind of ratchet D head of ratchet spanner, particularly a kind of ratchet D head that can change fast.

Liu Tong ratchet spanner in the market, its ratchet D head group mostly are fixing structure, and the user must carry the ratchet spanner of multiple different size specification when real work, and to be suitable for different job requirements, this makes operating personnel quite feel inconvenience.When the periodic maintenance work of implementing spanner, can't dismantle smoothly and take out ratchet D head in addition, the phenomenon of corrosion damage, the service life that causes reducing spanner often take place in ratchet D head.

For the above-mentioned shortcoming that overcomes existing ratchet spanner ratchet D head, realize the ratchet D head group of only carrying one group of ratchet spanner, can cooperate multiple different specification size, can deal with various operating position, make user's fast changable ratchet D head again, the utility model design creates a kind of new construction of fast changable ratchet D head, provides a kind of novel ratchet spanner.

The ratchet D head of ratchet spanner of the present utility model changes structure fast and is: the side at the ratchet spanner head is provided with a garden connected in star, be used to settle an embedding clamp dog and a direction adjusting knob, be provided with a depression spring groove on the edge, the end of garden groove, be used to place a spring and a steel ball, this steel ball just in time can withstand in the matrix pearl groove of embedding clamp dog left and right side, when dialling veer via adjusting knob, the restriction that makes the ratchet of embedding clamp dog both sides produce positive and negative direction to ratchet D head respectively.One square through hole groove is set on the ratchet surface of ratchet D head, one spring-go element and a positioning block are installed in groove, the time spent is done in the arcuation groove turn that this spring-go element and locating piece are subjected on the relevant position of a push rod, can the rise effect of blocking decline retraction, make a ratchet D blocking or be separated from the groove restriction of ratchet spanner head, realize the purpose of fast quick-detach.

Be elaborated below by paying figure and embodiment.

Fig. 1 is a three-dimensional exploded view of the present utility model

Fig. 2 is a ratchet D head restriction forward rotation schematic diagram of the present utility model.

Fig. 3 is a ratchet D head restriction backwards rotation schematic diagram of the present utility model.

Fig. 4 is that ratchet D head of the present utility model unrestrictedly rotates schematic diagram.

Fig. 5 is a ratchet D of the present utility model embedding system view.

Fig. 6 is a ratchet D of the present utility model disassembly status schematic diagram.

Each figure figure number is described as follows:

10 ratchet spanneres, 11 handles

12 heads, 121 garden grooves

122 spring grooves, 123 axis holes

124 terrace edges, 125 grooves

20 embedding clamp dogs, 21,22 concave arc pearl grooves

23,24 just, reverse ratchet 25 garden arc concave surfaces

26 long garden grooves

30 direction adjusting knobs, 31 long garden projections

32 driving levers, 33 circular groove grooves

The S1 spring

The R1 steel ball

40 notched ring buckles

50 ratchet D, 51 working head

52 ratchets, 53 axis holes

54 square slotted eye 55 lugs

60 push rods, 61 pearl grooves

62 garden arc flutings, 63 toggles

70 spring-go elements

80 locating pieces, 81 axostylus axostyle shapes

82 projecting blocks

As shown in Figure 1, ratchet spanner ratchet D head of the present utility model changes structure fast and mainly comprises a ratchet spanner 10, one embedding clamp dogs 20, one direction adjusting knob 30, one notched ring-like button 40, one spring S1, a steel ball R1, one ratchet D 50, one compression spring S2, a location steel ball R2, a push rod 60, one spring-go element 70, a positioning block 80 elements such as grade are formed.Wherein:

Ratchet spanner 10 has a handle 11 and head 12, and head 12 is the parts that are used to assemble all members.Handle one side of leaning at head is provided with a garden type groove 121, along the spring base 122 that a depression is set, offer a garden shape through hole 123 at the end of this garden groove at the center of head, one terrace edge 124 is set in the one side of through hole, lug 55 for ratchet D 50 just in time embeds wherein, shown in the A-A view.Bottom surface and garden connected in star 121 at through hole 123 are connected, and a groove 125 is set on the hole wall of through hole.

Embedding clamp dog 20 is a kind of symmetrical blocks, and two ends are convex, and the arc place, garden of one side is provided with two concave arc pearl grooves of receiving mutually 21,22.Two jiaos of places of the garden arc of opposite side are provided with one group of forward ratchet and reverse ratchet 23 and 24.The central authorities of two ratchets are the garden arc 25 of depression, make 25 and the radian of D ratchet adapt, and make 23 with 24 ratchet group and D ratchet scarf mutually.One oval groove is set on 20 centre position, chimeric for long garden projection 31 insertions of adjusting knob 30.The convex arc of two ends is corresponding with garden shape groove about the embedding clamp dog.

Adjusting knob 30 is garden disk-like object, and size just can be covered on the garden connected in star 121 of spanner 10 head portion, and one side is provided with a projection 31, and another side is provided with a driving lever 32 that extends downwards.This driving lever can rotate stirs embedding clamp dog 20 to the left or to the right or mediate, and in the periphery of garden dish one ring-shaped groove 33 is set, and is used to settle notched ring buckle 40.

Spring S1 has suitable elastic force, and directly is placed in the spring groove 122 of above-mentioned ratchet wrench 10, and steel ball R1 cooperation is positioned on the spring S1, and this steel ball R1 can push up in the pearl groove 21,22 on system embedding clamp dog 20 left sides or right side.

Notched ring buckle 40 is used for being buckled in the circular groove groove 33 of direction adjusting knob 30.Above-mentioned spring S1, steel ball R1, embedding clamp dog 20 and direction adjusting knob 30 pack among spring groove 122 and the garden groove 121 in regular turn, make it to have the function of rank system fastening.

Ratchet D 50, its front end is one to have the working head 51 of multiple different specification size, the stage casing is a bigger ratchet 52 (having certain specification), center at ratchet D 50 is provided with an axis hole 53, extend a ring-type lug 55 endways, and on ratchet 52, a square through hole 54 and axis hole 53 are set communicate.

One push rod 60, it is a stepped garden shape body of rod, less latter end is provided with a depression pearl groove 61, the square hole place that interlude corresponds to ratchet 52 is provided with a garden shape arc fluting 62, form a ladder between two sections, just in time spring is firmly compressed in embedding, a bigger end forms a block head, is provided with one on the head and supplies dialling of rotation usefulness to turn round 63.

Spring-go element 70 omits tool elastic force, places the square opening 54 of ratchet, by means of the turning effort of push rod 60, can make spring-go element 70 do the action of rise and fall along with 60 garden arc 62.

A positioning block 80, the lower end is an axostylus axostyle shape 81, can intert among spring-go element 70, the upper end is a bigger square, via the square hole on the ratchet 52 54, can be limited in the groove 125 of shaft through-hole 123 inwalls on the spanner 10, and according to the rising or the down maneuver of spring-go element 70, form and be equipped in the groove 125 or break away from state in this groove retraction square hole 54.

By above-mentioned each combination of elements, formed a kind of ratchet D head of quick-detachable ratchet spanner.What Fig. 2, Fig. 3 and Fig. 4 represented is that this ratchet D head is in restriction forward, reverse and unconfined rotary state.During use, the driving lever 32 of direction of rotation adjusting knob 30 arbitrarily, the concave arc pearl groove 21,22 that makes embedding clamp dog 20 be in the left side, the right is subject to below steel ball R1, ratchet 23 or 24 is made progress, and arc is put and the ratchet of D ratchet is chimeric, realize the rotation that it is positive and negative, or be in middle position, and make 23 all not contact with ratchet with 24, can unconfinedly rotate.When being in unrestricted rotary state, help the dismounting of D head most.

What Fig. 5 and Fig. 6 were represented is the schematic diagram that ratchet D head is in embedding system state and disassembly status.In the time of the ratchet D that changes different size, dialling of push rod 60 turned round 63 go to the position that the garden arc fluting is aimed at spring-go element 70, spring-go element 70 falls into groove, make to break away from groove 125 in the square groove 54 of locating piece retraction ratchet, can conveniently take out ratchet D head, change the ratchet D head of another specification simultaneously, it is installed in 123 holes again, rotate the 63 garden arc flutings that make on the spring whiz 60 again, spring is released the locating piece in 54 is embedded in 125 grooves, forms the blocking state.

The utility model has made things convenient for the operation of ratchet spanner really, has reduced the trouble that the operator need carry the ratchet spanner of plurality of specifications, and its characteristics are exactly because the ratchet D header structure of fast changable provided by the utility model.

Claims (1)

1. A kind of ratchet D head of fast changable of ratchet spanner, mainly form, it is characterized in that by driving end, embedding clamp dog, direction adjusting knob, breach ring buckle, spring, steel ball, ratchet D head, compression spring, positioning ball, push rod, spring-go element, locating piece etc.:

   A, a ratchet wrench at hand, this head is provided with a garden connected in star by handle one side, this groove joins mutually with the axis hole that these head central authorities are provided with, and on the edge, the end of garden connected in star one spring groove is set, the one side in the axis hole is provided with a terrace edge, and a groove is set on hole wall;

   B, an embedding clamp dog, about two ends symmetrical, be convex garden arc, radian and garden connected in star adapt, the mid point 2 half of one side is respectively established a concave arc pearl groove, and another side is a cancave cambered surface, respectively establishes one group of ratchet at concave arc and two end convex arc angle of cut places, be respectively forward ratchet and reverse ratchet, establish a long garden groove in the center;

   C, a direction adjusting knob, be the garden dish type, the garden face of the big topped garden of I connected in star, the one side of this adjusting knob is established an oval projection, this projection just in time with the oval groove tabling of embedding clamp dog center, another side extends a driving lever downwards, is used to twist the direction of rotating bezel clamp dog, one ring-shaped groove is set on the periphery of this adjusting knob dish, is used for ccontaining one notched ring buckle;

   D, one ratchet D head, front end is one to have the working head of multiple different specification size, the stage casing is the fixing ratchet of specification, the rear end is provided with a lug, this lug is just in time rabbeted in the terrace edge on limit, driving head axis hole, and contact with the embedding clamp dog face portion of below, center at ratchet D head is provided with a hole, be used to install a spring and push rod and a location steel ball, on the groove position on the ratchet face of this ratchet, establish a square through hole and communicate with D centre bore corresponding to driving end axis hole wall, one spring-go element and a positioning block insert in this hole, locating piece one end is a garden shape cylinder, can insert in the spring-go element, the other end is square block, can snap in the groove of axis hole wall;

   E, a push rod are a stepped garden cylindricality body of rod, and the leading portion minimum can be inserted in the compression spring, and be provided with a concave arc groove and be used to settle positioning ball; The stage casing is thicker than leading portion, the ladder that forms between two sections can allow the compression spring hold, with the corresponding position of the square opening of ratchet face on an arc groove is set, form the ccontaining suitable space of spring-go element, be arranged to protruding big stirring of cap-like endways and turn round, be used for the whole push rod of turn;

   F, spring is packed in the spring groove on shape bottom land edge, garden, on spring, lay a steel ball, the embedding clamp dog is packed in the shape groove of garden, the arc groove of a side that makes the embedding clamp dog is facing to allowing steel ball, the sour jujube group of opposite side is towards the axis hole, the direction adjusting knob of garden dish type lid is pressed on the embedding clamp dog, the oval projection of adjusting knob is inserted in the oval slotted eye on the embedding clamp dog, before embedding, earlier notched ring buckle is inserted in the groove of garden dish type adjusting knob periphery; Then ratchet D head is inserted in the shaft through-hole of driving head, this ratchet D head inserts push rod in the centre bore of D head before inserting shaft through-hole in advance; Put on a compression spring for less one section of this push rod, lay a location steel ball, insert with push rod in the center hole of D head, and the concave arc groove that makes the push rod stage casing is aimed at the square opening of ratchet, spring band on the post of the garden of locating piece and insert in the square groove, make it to fall in the concave arc groove in push rod stage casing, make the square body of locating piece submerge in the square groove, treat that sour jujube D head inserts turn push rod behind the shaft through-hole, make spring leave the concave arc groove and release by the spring handle locating piece, make it to embed the head that in the groove of shaft through-hole ratchet D head is mounted in ratchet spanner, form one brand-new ratchet spanner.

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