CN2239329Y

CN2239329Y - Trimming torque spanner

Info

Publication number: CN2239329Y
Application number: CN 95225573
Authority: CN
Inventors: 许忠庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-25
Filing date: 1995-10-25
Publication date: 1996-11-06
Anticipated expiration: 2005-10-25

Abstract

The utility model relates to a trimming torque spanner. One end of the inner part of a main body is provided with a spanner body, and the other end is sequentially provided with a block body, a spring and an adjusting device. The outer part of the main body symmetric to the adjusting device is provided with blocking device. The blocking device comprises a sliding sleeve, a controlling piece, a handle and a driving piece. When the torsion state is adjusted, the sliding sleeve and the push controlling piece are driven to separate from each other by the driving piece so that the adjusting device is driven to smoothly rotate by the handle. When the sliding sleeve is engaged with the push controlling piece, the handle and the push controlling piece can be rotated so that the purpose of blocking is achieved.

Description

The fine setting torque spanner

The utility model relates to a kind of fine setting torque spanner, particularly relates to a kind of fine setting torque spanner that has blocking function and can adjust torsion.

The pattern of spanner has a lot, and for example open-end wrench, monkey wrench, double offset ring spanner and box spanner etc. mainly are nut or the screws that is used for operating various occasions, all size size, pattern, and is quite convenient in operation and the application.

But, when screwing nut or screw, be the sensation application of force of borrowing the operator, often have because of the application of force kicks the beam to cause screw, nut not to screw easily getting loose, or cause nut because of the application of force is excessive, screw sets one's teeth on edge and collapses damage.For the disappearance of wrench operated in the past, a kind of spanner that can adjust torsion is in advance arranged at present, as shown in Figure 1, be to be pivoted with one at a wherein end that is body 81 inside of hollow tubular to pull body 82, this is pulled body 82 protruding ends that are exposed at these body 81 outsides and is provided with a driving head 821, stretch that to be located at these body 81 inside then be a stock 822, these body 81 other end inside are equiped with a sound seat group 83, a spring 84 and a member such as pushing ram 85 in regular turn, and this pushing ram 85 also links with a sleeve 86 that is set in these body 81 outsides.When these sleeve 86 precessions of operation, this sleeve 86 can drive 85 pairs of springs of this pushing ram 84 and produce compacting, and 83 meetings and stock 822 terminal urgent contacts of this seat group.

The structure that mat is above-mentioned, when when this driving head 821 of pulling body 82 is operated screws or nut, surpassing the torque value of setting, this seat group 83 and stock 822 terminal disengagings fast can produce the sound because of drop, and the operator will know that the application of force has surpassed the torque value of setting.

Though utilize said structure can reach the purpose that predicts and adjust torsion, when operation, the operator can rotate to this sleeve 86 because of the application of force, so that the setting of torsion can't obtain accurately.

In order to improve this disappearance, there is another kind to have the torque spanner of blocking function, as shown in Figure 2, be the novel patent case of Taiwan application case number No. 76211005 (torque spanner locking improvement structure), its torsion blocking device 87 is made up of a catch ring 871, steel ball body 872, arc spring leaf 873, a lock ring 874 and a retainer ring 875.Shown in Fig. 3,4, when this lock ring 874 of rotation, its inner ring surface is a depressed part 874 ' meeting compression arc spring leaf 873 of four sections bendings, this steel ball body 872 also can be subjected to the compressing of arc spring leaf 873 and wrench body 88 and sleeve 89 blockings are located, sleeve 89 can not rotated, and reach the purpose of locking.

The purpose of this utility model is to provide a kind of fine setting torque spanner, forms with simple member assembly, not only reduces cost and can reach the purpose of simple and easy locking.

Fine setting torque spanner of the present utility model, the body that comprises a tubulose, a this body interior wherein end is pivoted with one and pulls body, this stock of pulling body is stretched and is located at this body interior, this body other end inside is installed one in regular turn and is knocked piece, a block, a spring and an adjusting device, this knocks the piece both sides and is subjected to this stock and block socket respectively, and this spring then is subjected to the pushing of adjusting device institute.This body exterior is symmetrical in this adjusting device place and is provided with a blocking device, this blocking device comprises a sliding sleeve, a pushing part, a handle and an actuator, this sliding sleeve is subjected to pin restriction and still can not rotates to doing the appropriateness displacement along this body shaft only, the inlay card position that this sliding sleeve wherein has predetermined number to stretch vertically on the side edge to establish, this pushing part is positioned at this sliding sleeve one side, and be symmetrical in that also be provided with on the ora terminalis at this inlay card position can be in good time and the blocking position of this mutual blocking in inlay card position, this handle is set in the outside of this sliding sleeve and pushing part, wherein an end and this adjusting device are affixed, the other end offers an elongated slot vertically, this actuator is installed in the handle outside, wherein a side radially protrudes out a connecting rod, and this connecting rod passes the elongated slot of this handle and be affixed with the pushing part.Whereby, it is axially displaced along body to operate this actuator, can drive the pushing part separates or combination with the sliding sleeve generation, when separated attitude, this handle can drive the adjusting device rotation and reach the purpose of adjusting torsion, when pushing part and sliding sleeve engagement, handle can't rotate the purpose that can reach locking.

Below by most preferred embodiment and accompanying drawing fine setting torque spanner of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is a kind of combination schematic diagram of torque spanner in the past.

Fig. 2 is a kind of exploded perspective view that in the past had the torque spanner of blocking function.

Fig. 3 is a kind of end face combination section that in the past had the torque spanner of blocking function.

Fig. 4 is a kind of blocking combination section that in the past had the torque spanner of blocking function.

Fig. 5 is the exploded perspective view of the utility model preferred embodiment.

Fig. 6 is the combination section of the utility model preferred embodiment.

Fig. 7 is the other direction combination section of the utility model preferred embodiment.

Fig. 8 is the utility model preferred embodiment unlocking operation chart.

Fig. 9 is the adjustment torsion operation chart of the utility model preferred embodiment.

As shown in Figure 5, the fine setting torque spanner of the utility model preferred embodiment comprises a body 10, one and pulls body 20, one and knock piece 30, block 40, spring 50, an adjusting device 60 and a blocking device 70.

This body 10, pull body 20, knock piece 30, the structure and the assembly of block 40, spring 50 concern the position, haply all with identical in the past, its thin portion structure is no longer added narration at this, below is at feature description of the present utility model.

Cooperate shown in Figure 6, this adjusting device 60 is adjusted 63 of seats by a screw rod 61, two nuts 62 and one and is formed, these screw rod 61 1 ends are provided with a blocking element 611, this blocking element 611 holds at this spring 50 1 ends, these screw rod 61 other ends are arranged in the screw 111 of a locating piece 11 in advance, this locating piece 11 are installed in this body 10 terminus inner again.This two nut 62 is arranged in this screw rod 61 1 ends respectively, and is positioned at this locating piece 11 outsides.This adjustment seat 63 a wherein end face is provided with a hexagon seat hole 631, can supply one of them nut 62 sheathed location, these 631 bottoms, hole are provided with a dividing plate 632, this dividing plate 632 can pass for this screw rod 61, and make another nut 62 be positioned at this dividing plate 632 outsides symmetrically, so that this adjustment seat 63 is installed between two nuts 62.

This blocking device 70 is pulled body 20 and is installed in this body 10 other end outsides with respect to this, comprises a sliding sleeve 71, pushing part 72, a handle 73 and an actuator 74.This sliding sleeve 71 is made hollow cylindrical, each offers the guide groove 711 wearing sliding sleeve 71 walls thoroughly and have suitable length vertically the side face both sides, and utilize two pins 12 to pass this two guide groove 711 and be installed on the body 10 that is symmetrical in this locating piece 11, make this sliding sleeve 71 be subjected to these two pins, 12 restrictions and can be along these body 10 axial displacements but can not rotate.This sliding sleeve 71 wherein has predetermined number along axially stretching the inlay card position 712 of establishing and being the groove shape on the side edge, and these inlay card position 712 peristomes are provided with circular arc 7121.This pushing part 72 is symmetrical in this sliding sleeve 71 and makes hollow cylindrical, and be set in these body 10 outsides and be positioned at this sliding sleeve 71 inboard places, the ora terminalis that this pushing part 72 is symmetrical in this inlay card position 712 is provided with and can and be the blocking position 721 of double wedge shape with these inlay card position 712 mutual blockings, the end at this blocking position 721 is made circular-arc guidance part 7211, then is provided with most perforations 722 on the side face of these pushing part 72 other ends.This handle 73 is hollow tube-shape, and be set in the outside of this sliding sleeve 71 and pushing part 72, wherein an end is provided with hole 731, can for a lock member 7311 lock and with adjustment seat 63 affixed being integral of this adjusting device 60, these handle 73 other ends wherein respectively offer an elongated slot 732 on the two sides vertically, and dual-side then is provided with the upper and lower upper and lower draw-in groove that be arranged in parallel 733,734 in addition.This actuator 74, be to make the hollow circular ring shape in the present embodiment, inside is provided with endoporus 741, and be set in the outside that this handle 73 is provided with these elongated slot 732 1 ends, these actuator 74 inner ring surfaces wherein both sides have respectively radially protruded out a connecting rod 742, this connecting rod 742 passes the elongated slot 732 of this handle 73 and is installed in the perforation 722 of this pushing part 72, make this this pushing part 72 of actuator 74 linkages, then be symmetrical on the other two sides of these endoporus 741 inner ring surfaces this handle 73 on, lower bayonet slot 733,734 and be provided with two elasticity latches 743, after being acted on, this elasticity latch 743 has along the radially moving partially elastic-restoring force of this actuator 74, and borrow these elasticity latch 743 inlay cards draw-in groove 733 or lower bayonet slot 734 inside on this, make this actuator 74 fixing.

As Fig. 6, shown in 7, during assembling, earlier this being pulled body 20 is positioned on this body 10 with 21 pivot joints of a hinged arm, again this is knocked piece 30, block 40 and spring 50 are inserted in from these body 10 other ends in regular turn, make this knock piece 30 and pull body 20 bottoms to only being positioned at this, and this pushing part 72 and sliding sleeve 71 be set in this body 10 outsides earlier, and after this locating piece 11 being arranged on the screw rod 61 of this adjusting device 60, when utilizing this pin 12 will pass the guide groove 711 of this sliding sleeve 71 again, together this positioning seat 11 is fixed on this body 10 bottoms, and the blocking element 611 that makes this screw rod 61 is arranged on this locating piece 11 inboards, and can not deviate from.Then, this actuator 74 is set on this handle 73, and this handle 73 is set in this sliding sleeve 71 and pushing part 72 outsides, utilize lock member 7311 that this

handle

73 and 632 lockings of adjustment seat are integral again, and this connecting rod 742 is passed this elongated slot 732 and be installed in the perforation 722 of this pushing part 72, just finished whole assembling.

Shown in Fig. 6,7, state during for locking, this connecting rod 742 is positioned at the lower end of this elongated slot 732, and this elasticity latch 743 also inlay card in the lower bayonet slot 734 of this handle 73, utilize the inlay card of this elasticity latch 743 and lower bayonet slot 734, make this actuator 74 fixing, and can on handle 73, not slide easily.Under this state, the blocking position 721 of this brake component 72 is intermeshing with the inlay card position 712 of sliding sleeve 71, therefore, even operator's application of force desire is rotated this handle 73, chimeric because of this blocking position 721 and inlay card position 712 makes this brake component 72 fixing, so handle 73 can't rotate.Therefore, when operation spanner and the application of force, can not exert an influence to adjusting device 60 yet.

In the time will adjusting torsion, as shown in Figure 8, this actuator 74 is upwards passed, make this connecting rod 742 along elongated slot 732 move and the position at elongated slot 732 upper end positions, but these elasticity latch 743 inlay cards are on handle 73 in the draw-in groove 733, and this brake component 72 is subjected to the drive of this actuator 74, also can this blocking position 721 be separated with inlay card position 712 along these body 10 upward displacements.At this moment, as shown in Figure 9, when rotating handles 73, meeting interlock in handle 73 bottoms should adjust seat 63 and screw rod 61 rotates together, make this screw rod 61 produce the action of rising or descending with respect to this locating piece 11, and the position of this blocking element 611 is changed, these spring 50 down trodden active forces also can be adjusted the purpose of setting torsion and reach along with change.

When torsion setting is finished, and when being operable to blocking, this actuator 74 is passed downwards, made this connecting rod 742 be positioned at elongated slot 732 lower ends once again, and this pushing part 72 is activated and can makes the blocking of intermeshing of this blocking position 721 and inlay card position 712, and reaches the locking purpose.When this blocking position 721 will embed inlay card position 712, utilize the effect of this guidance part 7211 and circular arc 7121, the socket action is successfully finished.In addition, when adjusting torsion and handle 73 moved down (state as shown in Figure 9), this handle 73 drives this brake component 72 and rotates and displacement downwards, utilize the effect of guidance part 7211 and circular arc 7121, can make 7211 pairs of circular arcs of guidance part 7121 produce side direction pushing power, and can only endwisely slip and to rotate along body 10 because of this sliding sleeve 71, this lateral thrust just can impel sliding sleeve 71 to move down, so, the rotational action of brake component 72 can convert this sliding sleeve 71 axially produces displacement along body 10 action to.On the contrary, when handle 73 makes progress precession, move on this adjustment seat 63 and will promote sliding sleeve 71 bottoms, move and sliding sleeve 71 is produced.

What deserves to be mentioned is, because this spring 50 is finished in manufacturing, after the cutting, the length of each spring 50 may have some errors, in order to solve the difference in length of each spring 50, when assembling, utilize the position that changes this adjustment seat 63 just can overcome, and earlier this two nut 62 and adjustment seat 63 are installed on this screw rod 61, but do not make locking positioning, by the time after this adjustment seat 63 is finished with the relative position adjustment of blocking element 611, in these dividing plate 632 another sides, just can finish the operation of correction again with this hole 631 and nut 62 nooses, and with another nut 62 packings.

In sum, of the present utility model simple in structure, simple, the processing ease of the member of blocking device 70 particularly, and can reach the purpose of certain locking, and, members such as the sliding sleeve 71 of this blocking device 70, pushing part 72, handle 73, actuator 74, can't be subjected to application of force effect, thus can utilize plastic cement material to make, the accuracy when making with certain grasp, not only make, assembly is easy, also can reach the effect that reduces cost.

Claims

1. fine setting torque spanner, the body that comprises a hollow tubular, a this body interior wherein end is pivoted with one and pulls body, this is pulled body and stretches an end that is located at this body interior and held by a spring, then be subjected to an adjusting device pushing at the spring other end, the inner spiral shell of this body other end is established an adjusting device, it is characterized in that:

This body is provided with a blocking device with respect to this other end outside of pulling body, and this blocking device comprises a sliding sleeve, a pushing part, a handle and an actuator;

This sliding sleeve restricted and can along this body shaft to doing displacement but be not located at rotationally on this body, this sliding sleeve wherein has most to stretch the inlay card positions of establishing vertically on the side edge;

This pushing part is set in this body exterior, and is positioned at this sliding sleeve one side, and the inlay card position that is symmetrical in this sliding sleeve on the ora terminalis of this pushing part is provided with the blocking position with this mutual blocking in inlay card position;

This handle is set in the outside of this sliding sleeve and pushing part, and wherein an end and this adjusting device are affixed, and the other end offers most elongated slots vertically;

This actuator is located at this handle outside, and medial surface has radially protruded out most connecting rods, and this connecting rod passes the elongated slot of this handle and affixed with this pushing part.

2. fine setting torque spanner as claimed in claim 1 is characterized in that:

Offer more than one guide groove on this sliding sleeve vertically, this body is embedded with pin corresponding to this guide groove position.

3. fine setting torque spanner as claimed in claim 1 is characterized in that:

This actuator is hollow and annular and is set in this handle outside, and this handle outer ring surface is provided with most draw-in grooves, and the actuator inner ring surface is provided with the elasticity latch with respect to this draw-in groove position, and this elasticity latch has along the radially moving partially elastic-restoring force of this actuator.

4. fine setting torque spanner as claimed in claim 1 is characterized in that:

This adjusting device is adjusted seat institute by a screw rod, two nuts and one and is formed, and this two nut is arranged in this screw rod one end respectively, and this adjustments seat is located between this two nut and is affixed with this handle, and this two nuts clamping and positioning should adjustment.