The torsion type sleeve
Technical field
The utility model is relevant a kind of sleeve, refers to that especially an a kind of end can be socketed on throw manual, pneumatic, electronic output, but the other end torsion type sleeve of socket driving head then.
Background technology
Press the locking and the dismounting of screw, mostly with screwdriver, be after screwdriver bottom driving head is embedded the head recess of screw during use, utilize the positive and negative rotation band of the handle screw locking of screwdriver again or get loose, for use in the combination of various utensils or separate and use.
And the drive rod of screwdriver mainly to be handle and by a predetermined length have driving head is combined, and this driving head generally is divided into yi word pattern or cross, to cooperate the yi word pattern or the cross groove of screw head, is beneficial to the locking of this screw or gets loose.Because the driving head of aforementioned screwdriver is solid shape and size, therefore can't change the driving head of different appearance and size.Based on aforesaid disappearance, relevant dealer then develops the hand-operated tools of replaceable driving head, spanner for example, and behind this spanner socket one sleeve, but the slot of this sleeve bottom driving head of the different appearance of socket and size then, so that be applied to various types of screws.Therefore, this sleeve only is the tool for transmitting of torsion, itself there is no quantitative torsion mechanism setting.
If throws such as conventional screw bottle opener, spanner are used for the optics device, for example camera lens adjustment of monitor decides because the torque value of throw is a application of force size according to the user, so that be in course of adjustment, often excessive because of torsion, and the eyeglass lock is broken, and cause great loss.
And for avoiding the user to use the rotation of throws such as screwdriver, spanner by closure, screw for example, the power of being rotated exceeds the scope that screw can bear, and causes the tooth that collapses of screw to damage.Therefore, the existing at present screwdriver that utilizes the drive mechanism of spring and steel ball in order to the output of restriction torsion, when this screwdriver uses, if torsion is excessive, steel ball promptly can separate with spring, and then causes screwdriver to separate with its driving head, so that allow screwdriver and driving head form idle running, thereby can control screwdriver and can only export quantitative torsion, to avoid by the damage of closure.
And this utilizes the screwdriver of spring and steel ball transmission, though can control the quantitative output of torsion, right because spring and steel ball contacts for point when slippage, and it causes the assembly distortion easily and damages, thereby the torsion output valve rather unstable that is limited.In addition, aforementioned screwdriver lattice are in the drive mechanism of spring and steel ball, and the size of screwdriver can't be dwindled effectively, so that the locking operation of precision instrument are had no lack scope for their abilities, and demand urgently improving.
The utility model content
The utility model purpose is to provide a kind of torsion type sleeve, can only be as the defective of different appearance of socket and Dimension Drive head to improve the known sleeve that is used for throw.
For achieving the above object, the torsion type sleeve that the utility model provides, it comprises:
One axostylus axostyle, one end are axially arranged with the non-circular grafting tenon of a section, and the other end extends axially an axle, and this axle surface level is to offering at least one dissected valley, and the radially prominent flange part of establishing;
One beam barrel, its axial two ends are offered a section respectively and are circular axial trough and the non-circular cover access slot of a section, this axial trough is single order shape hole, its undersized is in axle, and for axle intercalation connection, this axial trough is provided with a snapping portion for this flange part snapping corresponding to the flange part position, and this shaft hole diameter is to the prominent friction section of establishing, to tighten this axle, make axle and axial trough form a default torque value.
Described torsion type sleeve, the wherein embedded magnet of putting of this cover access slot.
Described torsion type sleeve, wherein this axle is axially opened a bar hole that communicates with dissected valley, ccontaining lubricant grease in this bar hole.
Described torsion type sleeve, wherein this axle is provided with a reserve around each dissected valley.
Described torsion type sleeve, wherein the grafting tenon free end of this axle is provided with a chamfered section, and the cover access slot the arrival end periphery be provided with a guiding face.
Described torsion type sleeve, wherein should the grafting tenon and axle between radially form a ring plate.
Described torsion type sleeve, wherein the grafting tenon of this axostylus axostyle is plugged in the inserting groove of manual, pneumatic or electric rotating tool bottom connecting rod, and then for the sleeving connecting rod socket location of driving head, this driving head free end is the tenon with geometric modelling to the cover access slot.
Because torsion type sleeve of the present utility model, the one end can be socketed on throw manual, pneumatic, electronic output, but the other end is the socket driving head then, the axle of this sleeve and axial trough have default torque value, and therefore, this sleeve is when the locking coupling assembling, if exceed the default torque value of this sleeve, promptly form idle running, with avoid this coupling assembling with by the damage of closure, and can improve the known sleeve that is used for throw can only be as the defective of different appearance of socket and Dimension Drive head.
Description of drawings
Fig. 1 a and Fig. 1 b are the three-dimensional exploded view at the utility model torsion type sleeve two different visual angles.
Fig. 2 is the profile after the utility model torsion type sleeve group is stood.
Fig. 3 is the three-dimensional exploded view of the utility model torsion type sleeve, throw and driving head.
Fig. 4 is the stereogram after the utility model torsion type sleeve, throw and driving head group are stood.
The specific embodiment
Torsion type sleeve provided by the utility model, it comprises:
One axostylus axostyle, one end are axially arranged with the non-circular grafting tenon of a section, and the other end extends axially an axle, and this axle surface level is to offering at least one dissected valley, and the radially prominent flange part of establishing;
One beam barrel, its axial two ends are offered a section respectively and are circular axial trough and the non-circular cover access slot of a section, this axial trough is single order shape hole, its undersized is in axle, and for axle intercalation connection, this axial trough is provided with a snapping portion for this flange part snapping corresponding to the flange part position, and this shaft hole diameter is to the prominent friction section of establishing, to tighten this axle, make axle and axial trough form a default torque value.
For further disclosing concrete technology contents of the present utility model, at first see also accompanying drawing, wherein, Fig. 1 a and Fig. 1 b are the three-dimensional exploded view at the utility model torsion type sleeve two different visual angles, Fig. 2 is the profile after the utility model torsion type sleeve group is stood, Fig. 3 is the three-dimensional exploded view of the utility model torsion type sleeve, throw and driving head, and Fig. 4 is the stereogram after the utility model torsion type sleeve, throw and driving head group are stood.
To shown in Figure 2, basically, torsion type sleeve of the present utility model is by an axostylus axostyle 1 as Fig. 1 a, and a beam barrel 2 is formed.
Wherein, axostylus axostyle 1 is a body of rod, and it is non-circular that its axial end is provided with a section, for example hexagonal grafting tenon 11, its apical margin free end has the chamfered section 111 of splaying, so that be plugged in throw 3 as shown in Figure 3, for example in the inserting groove 32 of bottle opener handle bottom connecting rod 31.
One ring plate 12 is radially formed on these grafting tenon 11 bottoms, so as to be adjacent to this inserting groove 32 and after chat the axial trough 21 of beam barrel 2; These ring plate 12 other ends extend an axle 13, and this damaged surface level is to opening at least one dissected valley 131, to provide this axle 13 suitable elasticity.These axle 13 surfaces have a flange part 132, and the axis of centres is to opening a bar hole 133, and this bar hole 133 communicates with those dissected valleys 131, and inside can ccontaining lubricant grease, makes lubricant grease can pass through dissected valley 131, and forms lubricant effect.Further, this axle 13 has around each dissected valley 131, and for example the reserve 134 that mills with milling cutter with the usefulness as oil storage, is felt so that the cunning of increase axle 13 when axial trough 21 rotates is suitable.
Beam barrel 2 is a cylinder, and it is non-circular for circular an axial trough 21 and a section that a section is offered at its axial two ends respectively, for example hexagonal cover access slot 22.These axial trough 21 undersized make both connect via known tight fit mode intercalation in axle 13, promptly form the pivot structure that a tool is stagnated locating effect.This axial trough 21 is single order shape hole, and flange part 132 positions of inner corresponding axle 13 and size have a snapping portion 211; Group immediately, this flange part 132 is buckled in snapping portion 211, make axle 13 and axial trough 21 sockets after, promptly form buckle state, and unlikely generation axial separation.Moreover, these axial trough 21 inner prominent friction section 212 of establishing, but these axle 13 surfaces of these friction section 212 packings, and form desired torsion according to this, and by the number of this friction section 212 with axle 12 contacts area, and torsion can be adjusted into default torque value, for use in the locking operation of precision instrument.
And the arrival end periphery of cover access slot 22 is provided with a guiding face of splaying 221, be beneficial to the socket location of the sleeving connecting rod 41 of driving head shown in Figure 34, this driving head 4 free ends can be the tenon 42 of yi word pattern, cross, geometric modelling when implementing, only this is a known technology all, does not intend giving unnecessary details at this.And, therefore, must set a magnet 23 in this cover access slot 22 for making driving head 4 have magnetic force, make the driving head 4 of institute's socket have magnetic force, so that absorption has the coupling assembling that sense magnetic material is made, for example screw.
2 of this axostylus axostyle 1 and beam barrels by formed pivot structure behind axle 13 and axial trough 21 snappings, promptly become torsion type sleeve as shown in Figure 3.Before address, the grafting tenon 11 of this sleeve one end is plugged in throw 3, for example in the inserting groove 32 of bottle opener handle bottom connecting rod 31, other end cover access slot 22 is the selected driving head 4 of socket then, with form as shown in Figure 4 in conjunction with kenel.Wherein, throw 3 not with shown in manual bottle opener handle exceed, that is to say that the sleeve shown in the utility model also must be used pneumatic or electric rotating tool, also can bring into play the locking or the mold release function of expection.
The utility model is when practical operation, at first the tenon 42 of driving head 4 is aimed at precision instrument, coupling assembling around the camera lens of monitor for example, screw head groove for example, rotate this throw with hand then, so that carry out sealed adjustment, in the process of screwing togather, when not surpassing the preset torque value of default sleeve, this screw is sustainable to be screwed into, and has rotated to the location and work as screw, and when surpassing default torque value, then axle 13 can produce axial trough 21 in and dally, and unlikely screw is excessively locked, and makes eyeglass be extruded and breaks.Therefore, can avoid improper, torsion be surpassed exceed the loss that be can bear scope by closure and cause because of screwing togather.
So via enforcement of the present utility model, this sleeve is by the snapping effect between axle and axial trough, and unlikely axial separation, in addition by between the two friction area, and default torque value between decision axle and axial trough.In addition, the axial bar hole of opening of this axle communicates with dissected valley, ccontaining its interior lubricant grease can be derived, and be supplied to dissected valley reserve on every side, slides along feeling when rotating to increase.Further, this sleeve can be used in throw manual, pneumatic, electronic output, and enlarge the scope of application.
That the utility model disclosed is a kind of of preferred embodiment, such as Ju Bu change or modification and come from technological thought of the present utility model and be have the knack of this skill the people was easy to know by inference, all do not take off claim category of the present utility model.