CN201824302U

CN201824302U - Torsion adjustment device

Info

Publication number: CN201824302U
Application number: CN2010201681426U
Authority: CN
Inventors: 黄金潭
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-20
Filing date: 2010-04-20
Publication date: 2011-05-11
Anticipated expiration: 2020-04-20

Abstract

The utility model relates to a torsion adjustment device, comprising a main axle unit, a snapping unit, an elastic piece and an adjustment unit. The main axle unit comprises a first tool head piece with a snapping gear ring and a second tool head piece. The snapping unit comprises a bearing seat arranged in the first tool head piece and adjacent to the snapping gear ring, a plurality of snapping pieces and an ejection block, wherein the bearing seat comprises a plurality of housing grooves for housing the snapping pieces and the housing pieces are limited among the housing grooves, the ejection block and the snapping gear ring. The axial thrust is applied on the ejection block by the elastic piece to make the v piece always move towards the snapping gear ring, furthermore the rotation snapping force on the first tool head piece is generated and the adjustment unit is mounted on the second tool head piece to adjust the axial thrust of the elastic piece. Thus the adjustment precision is increased and the whole structure intensity is increased to increase the work efficiency.

Description

Torsion adjusting device

Technical field

The utility model relates to a kind of hand-held tool, particularly relates to a kind of torsion adjusting device.

Background technology

As shown in Figure 1, existing a kind of torsion is adjusted spanner 10 and is had an outer tube 11, an operating parts 12 that is installed in these outer tube 11 front ends is installed in an ejection piece 13 in this outer tube 11, spring 14, a movable block 15 respectively, and an adjustment handle 16 that is installed in these outer tube 11 rear ends.

This operating parts 12 has one and is the driven cylinder 122 that 121, one of inserted links that are installed in swingably in this outer tube 11 are installed on these inserted link 121 the inners, and an operating head 123 that is arranged on these inserted link 121 outer ends.

This ejection piece 13 has a driving cylinder 131 that touches with these driven cylinder 122 subsides.

Adjust handle 16 when rotating this, can drive this movable block 15 near or away from this ejection piece 13, and then torque value is rotated in the setting that can adjust the precompressed elastic force of this spring 14 and become this spanner 10.

During use, by spiral shell spare of these operating head 123 sockets (figure does not show), when the lock knot power of this spiral shell spare is rotated torque value greater than the setting of this spanner 10, this inserted link 121 can produce the position that holds of swing and then disengaging and this ejection piece 13, just can't rotate this spiral shell spare this moment, on the contrary, and when the lock knot power of this spiral shell spare is rotated torque value less than the setting of this spanner 10, this inserted link 121 will remain on the position that holds with this ejection piece 13, and just can rotate this spiral shell spare this moment.

Though this spanner 10 has above-mentioned function of use, but because this spring 14 there is no other supported design, so very easily produce flexural deformation, add only to paste mutually between this ejection piece 13 and this operating parts 12 and touch by the driven cylinder 122 of this driving cylinder 131 and this, cause having the adjustment precision not good, not good the causing of overall construction intensity rotated the shortcoming that this spiral shell spare does not influence operating efficiency more smoothly.

The utility model content

The purpose of this utility model is to provide a kind of can improve the adjustment precision, increases the torsion adjusting device of overall construction intensity to increase work efficiency.

The utility model comprises a main axle unit, a clip unit, an elastic component and an adjustment unit, it is characterized in that:

This main axle unit comprises one the first tool heads part that rotates around an axis, reaches one the second tool heads part that is connected with this first tool heads part along this axis, and this first tool heads part has a stopper ring gear, and this second tool heads part has one section spiro rod section.

This clip unit comprises that one is arranged at this first tool heads part and adjacent to the bearing seat of this stopper ring gear, a plurality of clamping pieces and an ejection piece, this bearing seat has a plurality of storage tanks that are used to be installed in described clamping piece, and described clamping piece is limited between described storage tank and this ejection piece and this stopper ring gear.

This elastic component is placed on this second tool heads part.

This adjustment unit comprises that is placed on the pressing plate that this elastic component is touched in this second tool heads part and subsides, and screw lock in the spiro rod section of this second tool heads part in order to drive the adjustment nut that this pressing plate moves along this axis.

The beneficial effects of the utility model are: this elastic component is limited between this ejection piece and this pressing plate, can bestow the axial thrust that this ejection piece moves towards this bearing seat all the time, and then bestow the radial thrust that described clamping piece moves towards this stopper ring gear all the time, whereby, can improve the adjustment precision, increase overall construction intensity to increase work efficiency.

Description of drawings

Fig. 1 is the assembled sectional view that existing a kind of torsion is adjusted spanner;

Fig. 2 is the exploded perspective view of the utility model torsion adjusting device one preferred embodiment;

Fig. 3 is the assembled sectional view of the preferred embodiment;

Fig. 4 is a cutaway view of taking from the line IV-IV among Fig. 3, and illustrating that one first tool heads part is can not rotary state;

Fig. 5 is the view of similar Fig. 4, illustrates that this first tool heads is the moving state of idle running;

Fig. 6 is the view of similar Fig. 3, illustrates that a lock ring is positioned at the off-position and makes an adjustment nut be rotatable state;

Fig. 7 is the view of similar Fig. 6, and the state of adjusting the rotation torsion that increases this first tool heads part is described;

Fig. 8 is the view of similar Fig. 6, illustrate this lock ring be positioned at the lock pull the position this adjustment nut is can not rotary state.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is elaborated:

Shown in Fig. 2,3,4, the utility model torsion adjusting device the preferred embodiment comprises a main axle unit 20, clip unit 30, elastic component 40, adjustment unit 50, a positioning unit 60 and an indicating member 70.

This main axle unit 20 comprises that one first tool heads part 21 that can rotate around axis I and one second tool heads part 27 and one organize roped party zoarium 28.

This first tool heads part 21 has a connecting rod 22 that extends along this axis I, one from these connecting rod 22 hole enlargement moulding and form the accommodation seat 23 of an open room 231, a stopper ring gear 24 that is arranged at an inner ring surface 232 of this accommodation seat 23 reaches an axis hole 25 that is communicated with this connecting rod 22 and this room 231 along this axis I.

This connecting rod 22 is the dihedral body of rod in the preferred embodiment, can insert a latch fitting (figure does not show) and directly drive this latch fitting rotation, also can be with adapting rod 26 of tight fit socket outside this connecting rod 22, a dihedral hole 261 by this adapting rod 26 is connected with a latch fitting again.

This accommodation seat 23 also has one around this axis I and towards the bulge loop 233 that extends away from the direction of this connecting rod 22.

This stopper ring gear 24 has a plurality of cancave cambered surfaces 241, convex globoidal 242.

This second tool heads part 27 is installed on this first tool heads part 21 along this axis I, has a sleeving connecting rod that is positioned at this accommodation seat 23 271, one section in regular turn and is positioned at this accommodation seat 23 outer spiro rod section 272 and an instrument head rod 273.

This second tool heads part 27 also has two planes 274 that are arranged at this spiro rod section 272 and close this instrument head rod 273 respectively along this axis I, makes the part of this spiro rod section 272 become one section non-round rod segment 275.

This group roped party zoarium 28 has an annular groove 281 that is arranged at this sleeving connecting rod 271, and one is clamped on this annular groove 281 and keeps off the clasp of putting outside this connecting rod 22 282.

By this group roped party zoarium 28, this first tool heads part 21 is produced with this second tool heads part 27 link, and this first tool heads part 21 can be relatively rotated with this second tool heads part 27.

What deserves to be explained is that this group roped party zoarium 28 also can be to have a screw rod that extends from this sleeving connecting rod 271, and screw lock is in this screw rod and be positioned at the design of the nut of this axis hole 25.

This clip unit 30 comprises a bearing seat 31, a plurality of clamping piece 32 and an ejection piece 33.

This bearing seat 31 is arranged at this sleeving connecting rod 271 and is positioned at this room 231 and adjacent to this stopper ring gear 24, comprises a body 311, and is arranged at a plurality of radially open storage tank 312 that this body 311 is used to be installed in described clamping piece 32.

In the preferred embodiment, this bearing seat 31 is integral design with this sleeving connecting rod 271, and the radial slot bottom surface 313 of this storage tank 312 is the plane.

Described clamping piece 32 is ball in the preferred embodiment.

This ejection piece 33 is placed on this sleeving connecting rod 271, has a face that pushed away 331 away from this bearing seat 31, one in the face of this bearing seat 31 and be provided with the pressure of putting described clamping piece 32 in order to pressure in a stopper inclined-plane 333 and put face 332, and one is pushed away the flange 334 of face 331 moulding from this.

This elastic component 40 for the compression spring, is nested with outside this second tool heads part 27 in the preferred embodiment, comprises that one is nested with this flange 334 outside and is butted on this and pushed away first of face 331 and play pushed section 41, and one away from this first second bullet pushed section 42 that plays pushed section 41.

This adjustment unit 50 comprises that one is placed on this spiro rod section 272 and pastes the pressing plate 51 touch second of this elastic component 40 and to play pushed section 42, a screw lock in the adjustment nut 52 of this spiro rod section 272, and one is installed in this adjustments nut 52 knob 53 outward.

This adjustment nut 52 has one and is provided with that screw 521 is used for and the connecting wall 522 of these spiro rod section 272 mutual screw locks, one is extended and around this axis I and can enter leg 523 in the bulge loop 233 of this accommodation seat 23, reaches first an outer shroud flank of tooth 524 that is arranged at the local outer ring surface of this connecting wall 522 towards this first tool heads part 21 from this connecting wall 522.

Preferably, the internal face of this connecting wall 522 has one and touches the scalene cone 525 of this pressing plate 51 in order to subsides, has the contact area that can reduce this adjustment nut 52 and this pressing plate 51 can light power to rotate the effect of this adjustment nut 52.

This knob 53 is fixed on outside the leg 523 of this adjustment nut 52, has the effect that can conveniently rotate this adjustment nut 52.

This positioning unit 60 comprises an internal buckle ring 61, expansion controlling ring-shaped insert 62, an outer buckle ring 63 and a control piece 64.

This internal buckle ring 61 inserts and puts the connecting wall 522 that is fixed in this adjustment nut 52 and is positioned at this first outer shroud flank of tooth, 524 inboards.

This expansion controlling ring-shaped insert 62 has a non-circular hole 621 that is placed on the non-round rod segment 275 of this second tool heads part 27, and second an outer shroud flank of tooth 622 that is arranged at these expansion controlling ring-shaped insert 62 outer ring surfaces.

This outer buckle ring 63 inserts and puts non-round rod segment 275 outer ends of being fixed in this second tool heads part 27, breaks away from this second tool heads part 27 in order to stop this expansion controlling ring-shaped insert 62 to prevent this expansion controlling ring-shaped insert 62.

This control piece 64 is one and is nested with outside this expansion controlling ring-shaped insert 62 and this adjustments nut 52 also the sleeve that can move along this axis I, have an inner core face 641 and a urceolus face 642 of centering on this axis I respectively, be arranged at respectively one first annular groove 643 of this inner core face 641, one second annular groove 644, one be used for and this first outer shroud flank of tooth 524 and this second outer shroud flank of tooth 622 intermeshing inner circular tooth faces 645, and one is brought together baffle ring 646 in order to what stop this expansion controlling ring-shaped insert 62.

Embed this first annular groove 643 or this second annular groove 644 by this internal buckle ring 61, can make this control piece 64 obtain the location and not come off.

When being positioned at, this control piece 64 locks the position of pulling, this internal buckle ring 61 embeds second annular groove 644 of this control piece 64, the inner circular tooth face 645 of this control piece 64 is meshing with each other with the first outer shroud flank of tooth 524 of this adjustment nut 52 and the second outer shroud flank of tooth 622 of this expansion controlling ring-shaped insert 62 simultaneously, make this adjustment nut 52 produce annexation because of this control piece 64 with this expansion controlling ring-shaped insert 62, cooperate the non-circular hole 621 of this expansion controlling ring-shaped insert 62 to be placed on the non-round rod segment 275 of this second tool heads part 27 again, this adjustment nut 52 can't be rotated, and can't adjust rotation torsion this moment.

Shown in Fig. 2,6, when this control piece 64 is pulled outward to the off-position, become this internal buckle ring 61 and embed this first annular groove 643, the inner circular tooth face 645 of this control piece 64 breaks away from this first outer shroud flank of tooth 524 of adjusting nut 52 simultaneously, make this adjustment nut 52 no longer annexation be arranged because of this control piece 64 with this rotation preventing device 62, at this moment, just can rotate this adjustment nut 52 and rotate torsion to adjust.

Shown in Fig. 2,3,4, this indicating member 70 comprises a numerical tabular 71 that is arranged at this knob 53, and an index 72 that is arranged at the urceolus face 642 of this control piece 64, can demonstrate the adjusted value size by this numerical tabular 71 and cooperating of this pointer 72.

When this elastic component 40 is limited between this ejection piece 33 and this pressing plate 51, can bestow the axial thrust that this ejection piece 33 moves towards this bearing seat 31 all the time, be limited between described storage tank 312 and this stopper inclined-plane 333 as for 32 of described clamping pieces, and described clamping piece 32 will move towards this stopper ring gear 24 all the time because of the design on this stopper inclined-plane 333, that is to say, can bestow the radial thrust that described clamping piece 32 moves towards this stopper ring gear 24 all the time, and then this first tool heads part 21 produced radially clip power, and make this first tool heads part 21 possess the clip of rotation power, relatively make this second tool heads part 27 also possess the clip of rotation power, just general alleged rotation torsion.

During use, can be connected with a spiral lock 100 by this connecting rod 22 or this adapting rod 26, the axial thrust of bestowing this ejection piece 33 when this elastic component 40 is during greater than the lock knot power of this spiral lock 100, when just the rotation torsion of this first tool heads part 21 is tied power greater than the lock of this spiral lock 100, then this first tool heads part 21 can't rotate, and this moment, this tool heads 100 can be rotated this spiral lock 100.

As Fig. 2,3, shown in 5, the axial thrust of bestowing this ejection piece 33 when this elastic component 40 is during less than the lock knot power of this spiral lock 100, when just the rotation torsion of this first tool heads part 21 is tied power less than the lock of this spiral lock 100 (general alleged overload), this adapting rod 26 then, this connecting rod 22 can't rotate this spiral lock 100, can drive this first tool heads part 21 on the contrary rotates, when this first tool heads part 21 turns to the convex globoidal 242 of this stopper ring gear 24 in the face of described clamping piece 32, will promote described clamping piece 32 moves towards the direction near this axis I, described clamping piece 32 is pushed this ejection piece 33 open simultaneously, make this first tool heads part 21 dally, at this moment, just must transfer the big torsion that rotates to rotate this spiral lock 100.

As Fig. 3,6,7, shown in 8, transfer the rotation torsion of big this first tool heads part 21, at first this control piece 64 is pulled outward to this off-position, then rotate this adjustment knob 53 and drive this this push pedal 51 of adjustment nut 52 promotions near these ejection pieces 33, then diminish because of the axial distance between this ejection piece 33 and this push pedal 51, make the amount of being compressed of this elastic component 40 increase and can bestow the bigger axial thrust of this ejection piece 33, relatively increase described clamping piece 32 and bestow the radially clip power of this first tool heads part 21, increase the rotation torsion of this first tool heads part 21 simultaneously, and then can rotate this spiral lock 101, in the leg 523 of this adjustment nut 52 enters the bulge loop 233 of this accommodation seat 23 and against each other, can improve the firm effect of this adjustment nut 52, after the adjustment operation is finished, again this control piece 64 is pushed to this lock position of pulling toward in, this adjustment nut 52 can't be rotated be positioning states.

Correspondingly, only need backward rotation should adjust knob 53, just can turn down rotating torque value.

Conclude above-mentionedly, the utlity model has effect as described below and advantage:

One, the utility model really has and can improve torsion adjustment precision compared to existing torsion adjusting device 10, can increase overall construction intensity relative to rotating swimmingly effect and the advantage of this spiral lock 100 to increase work efficiency.

Two, the utility model is by this positioning unit 60, when this control piece 64 is positioned at lock when pulling the position, can make this adjustment nut 52 obtain the location can't be rotated, and then can prevent this adjustments nut 52 is misrouted the change adjusted and finished when non-adjustment state rotation torsion.

Claims

1. a torsion adjusting device comprises a main axle unit, a clip unit, an elastic component and an adjustment unit, it is characterized in that:

Described main axle unit comprises one the first tool heads part that rotates around an axis, reach one the second tool heads part that is connected with the described first tool heads part along described axis, the described first tool heads part has a stopper ring gear, and the described second tool heads part has one section spiro rod section;

Described clip unit comprises that one is arranged at the described first tool heads part and adjacent to the bearing seat of described stopper ring gear, a plurality of clamping pieces and an ejection piece, described bearing seat has a plurality of storage tanks that are used to be installed in described clamping piece, and described clamping piece is limited between described storage tank and described ejection piece and the described stopper ring gear;

Described elastic component is placed on the described second tool heads part;

Described adjustment unit comprises that is placed on the pressing plate that described elastic component is touched in the described second tool heads part and subsides, and screw lock in the spiro rod section of the described second tool heads part in order to drive the adjustment nut that described pressing plate moves along described axis;

Wherein, described elastic component is limited between described ejection piece and the described pressing plate.

2. torsion adjusting device according to claim 1 is characterized in that:

The described first tool heads part has a connecting rod that extends along described axis, and one from described connecting rod hole enlargement moulding and form the accommodation seat of an open room, and is arranged at the described stopper ring gear of an inner ring surface of described accommodation seat;

The described second tool heads part has a sleeving connecting rod, described spiro rod section and an instrument head rod in regular turn, and the described second tool heads part inserts described room and is connected with the described first tool heads part by a group roped party zoarium;

Described bearing seat and described sleeving connecting rod are one-body molded and be positioned at described room, and described bearing seat comprises a body, and are arranged at the described radially open storage tank that described body is used to be installed in described clamping piece.

3. torsion adjusting device according to claim 2 is characterized in that:

The radial slot bottom surface of the storage tank of described bearing seat is the plane, and described clamping piece is a ball.

4. torsion adjusting device according to claim 2 is characterized in that:

Described ejection piece has one and is played the face that pushed away that the pushed section bullet pushes away away from described bearing seat by one first of described elastic component, and one in the face of described bearing seat and be provided with a stopper inclined-plane and be used to press the pressure of putting described clamping piece to put face.

5. torsion adjusting device according to claim 4 is characterized in that:

Described ejection piece also has a flange that is nested with from the described first bullet pushed section that is pushed away the described elastic component of face moulding confession.

6. torsion adjusting device according to claim 1 is characterized in that:

Described adjustment nut has one and is provided with screw and is used for connecting wall with the mutual screw lock of spiro rod section of the described second tool heads part, and a leg that extends towards the described first tool heads part from described connecting wall, described adjustment unit also comprises an outer knob of leg that is fixed on described adjustment nut.

7. torsion adjusting device according to claim 6 is characterized in that:

The described second tool heads part also has one section non-round rod segment that is formed at the part of described spiro rod section, described adjustment nut also has first an outer shroud flank of tooth that is arranged at described connecting wall, and described torsion adjusting device also comprises a positioning unit, described positioning unit comprises that inserts and puts an internal buckle ring that is fixed in described connecting wall, one is provided with the expansion controlling ring-shaped insert that a non-circular hole is placed on described non-round rod segment, one inserts and puts and is fixed in the outer buckle ring that the described second tool heads part stops described expansion controlling ring-shaped insert, reach one and be nested with the control piece of being set by described internal buckle ring outside described expansion controlling ring-shaped insert, described control piece has an inner circular tooth face and the described first outer shroud flank of tooth, one the second outer shroud flank of tooth of described expansion controlling ring-shaped insert is meshing with each other.

8. torsion adjusting device according to claim 7 is characterized in that:

Described control piece also has one first annular groove, second annular groove that embeds for described internal buckle ring.

9. torsion adjusting device according to claim 8 is characterized in that:

Described control piece also has a baffle ring of bringing together that is used to stop described expansion controlling ring-shaped insert.

10. torsion adjusting device according to claim 2 is characterized in that:

Described accommodation seat also has one around described axis and towards the bulge loop that extends away from the direction of described connecting rod, is used for that leg for described adjustment nut enters and against each other.

11. torsion adjusting device according to claim 1 is characterized in that:

The internal face of the connecting wall of described adjustment nut has one and is used to paste the scalene cone that touches described pressing plate.