CN108453658B

CN108453658B - Torsion indicating wrench

Info

Publication number: CN108453658B
Application number: CN201710089874.2A
Authority: CN
Inventors: 胡厚飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-02-20
Filing date: 2017-02-20
Publication date: 2019-11-05
Anticipated expiration: 2037-02-20
Also published as: CN108453658A

Abstract

The present invention provides a kind of torsion indicating wrench comprising: an ontology with a pulling part and a support portion, pulling part can drive working substance, and there is ontology a radial line torsion indicating wrench is divided into an inverse time side region and a up time side region；One torque arm, including a first end and a second end, the first end of torque arm is connected to support portion, a deviation section is formed between the first end and second end of torque arm, the axial line of deviation section is located at inverse time side region, the second end of torque arm can be pulled for user, make the deviation section of torque arm from inverse time side region towards the direction elastic bending of up time side region；And an instruction device, it is set between ontology and torque arm, when the deviation section of torque arm is from inverse time side region towards when the direction elastic bending of up time side region, torque value can be observed for user.

Description

Torsion indicating wrench

Technical field

The present invention relates to a kind of small-sized torque spanneres, particularly relate to a kind of torsion indicating wrench to occupy little space.

Background technique

As shown in Figure 1, for existing trimming torque spanner construct, mainly by one handle 1, an actuating strut 2, a pointer 3, One moving head 4 is formed with a designation card 5.Handle 1 and moving head 4 are respectively arranged at the both ends of actuating strut 2, and designation card 5 It is fixedly arranged on actuating strut 2, wherein 3 one end of pointer is mounted on moving head 4, and the other end is corresponding and is directed toward designation card 5.Whereby, it exerts a force In handle 1, actuating strut 2 can bear torsion and be bent, and pointer 3 is kept straight, and user is referred to by pointer 3 on designation card 5 Scale, to observe torque magnitude.

However, the pointer 3 of aforementioned torsion spanner is easy to hurt user, and the designation card 5 being laterally arranged occupies many skies Between, therefore carry or store quite inconvenience.

Later someone's exploitation existing torque spanner 10 as shown in Figure 2, for the dynamic torque tool suitable for bicycle, packet Ontology 11 and measuring device 12 are included, ontology 11 has a handle 13 and a drive rod 14, can store a plurality of differences in handle 13 Screwdriver head, one end of drive rod 14 is set to handle 13, and the other end of drive rod 14 has the driving portion 15 of driving screw piece, and surveys Amount device 12 includes a pointer 12a and a labelling piece 12b, pointer 12a mono- are connected to handle 13, and other end correspondence is directed to mark Part 12b, and the one end labelling piece 12b is then socketed on drive rod 14, by user's operation torque spanner 10, pointer 12a is made to generate position The correspondence scale on labelling piece 12b is moved and points out, to learn the torque value of the application of driving portion 15.

But the pointer 12a of torque spanner 10 is in using the upper defect for still having and hurting sb.'s feelings, and the whole T-shaped shape of torque spanner 10, Not only take up space, also not portable or storage.

Someone develops another existing torque spanner 20, and as shown in Figure 3, Figure 4, torque spanner 20 includes a shell 21, a drive rod 22 and one is directed toward part 23, and shell 21 is made of a upper housing 21a, a lower case 21b, multiple to store Tool heads 24,22 one end of drive rod is fixedly arranged on shell 21, and offers an indicating window 25 in upper housing 21a, and adjacent to instruction It is labeled with numerical value 25a around window 25, is directed toward part 23 and is set to shell 21, one end has a pointer portion 23a, is located at indicating window In 25 and it is directed toward numerical value 25a.Whereby, in use, user can directly observe the number that the pointer portion 23a on shell 21 is directed toward mark Value 25a, with the torsion numerical value of quick interpretation spanner.

Although aforementioned torsion spanner 20 is without exposed pointer, whole still T-shaped shape still has the problem of occupied space, Not portable and storage.

Also, aforementioned each existing spanner is using pointer in swinging and depict torsion indicating graduation in low-angle, but For fear of the reason of low-angle, the scale that can be marked off is limited, is not easy to operator and differentiates torque magnitude.

Summary of the invention

To solve the above problems, the present invention provides a kind of torsion indicating wrench, overall appearance is generally in pen type shape, is had small It does not take up space ingeniously, and is conducive to the advantages of storage is with carrying.

In order to achieve the above objectives, the present invention provides a kind of torsion indicating wrench comprising an ontology comprising a pulling part And one be connected to pulling part support portion, pulling part can rotates along a rotary centerline to drive working substance to rotate, ontology With one vertically and by the radial line of center of rotation, torsion indicating wrench is divided into reciprocal one by the radial line Inverse time side region and a up time side region；One torque arm a comprising first end and a second end, the first end connection of torque arm In support portion, the second end of torque arm forms a deviation section far from the rotary centerline of pulling part, between first end and second end, The axial line of deviation section is located at the inverse time side region of torsion indicating wrench, and the second end of the torque arm can be pulled for user It is dynamic, make the deviation section of torque arm from the inverse time side region of torsion indicating wrench towards the up time side region direction of torsion indicating wrench Elastic bending；And an instruction device, it is set between ontology and torque arm, when the deviation section of torque arm is from torsion indicating wrench Inverse time side region towards torsion indicating wrench the direction elastic bending of up time side region when, can for user observe torsion Value.

Wherein, the axial line of deviation section and the radial line of ontology it is parallel and not conllinear and be located at inverse time side region.

Wherein, support portion has an eccentric orfice relative to radial line, and the axial line of eccentric orfice is located at inverse time side region, torsion The first end of bar is incorporated into eccentric orfice.

Wherein, torque arm is linearly.

Wherein, support portion further includes having an enlarged slot for being connected to eccentric orfice, and enlarged slot allows torque arm from inverse time lateral areas Domain is towards the direction elastic bending of up time side region.

Wherein, support portion is integrated with pulling part, and support portion extends along radial line, and support portion is long in the extension of radial line Degree is equal to or more than pulling part in the length of radial line；Pulling part be single direction ratchet, commutation ratchet, open end, plum blossom end or Sleeve；Positioning piece is also set up between the support portion and the torque arm.

Wherein, ontology further includes the shell of a hollow form, and cladding is set to support portion and extends along radial line, torsion The second end of bar exposes to except shell, and instruction device is set to shell and is connected to the deviation section of torque arm.

Wherein, shell is equipped with a rigid block in contrast to the end of pulling part, and rigid block has a guide groove, for torque arm Second end pass through it is exposed.

Wherein, the second end of torque arm has a handle, and center portion is recessed.

Wherein, the second end of torque arm has a handle, has two depressed areas positioned at inverse time side region and one Positioned at up time side region and towards ontology direction extend breasting area.

Wherein, instruction device includes a tooth block for being set to torque arm；One with graduated turntable, is rotatably dispose in outer There is a gear to engage with tooth block for shell, turntable；Instruction device further includes an outer cover, and cladding is set to end and the turntable of shell Between, there is outer cover a perspective portion to correspond to the scale on turntable.

Wherein, the flank of tooth of tooth block forms twice of radius or more of radius at least more than gear.

Wherein, turntable includes an inner disc and an external disk, and external disk is located on inner disc periphery, and can relative rotation.

Whereby, the present invention is in addition to it can provide the effect of user sees view torque value, moreover it is possible to which by torque arm, opposing body is Eccentric setting so makes so that torque arm is pulled from ontology inverse time side region towards up time side region direction Obtaining torsion indicating wrench overall appearance can be in pen type shape, not take up space with small and exquisite, and be conducive to the advantages of storing and carrying.

Detailed description of the invention

Fig. 1 is the appearance diagram of existing trimming torque spanner construction.

Fig. 2 is the appearance diagram of existing torque spanner.

Fig. 3 is the appearance diagram of another existing torque spanner.

Fig. 4 is the structural exploded view of Fig. 3 torque spanner.

Fig. 5 is appearance top view of the invention.

Fig. 6 is that schematic diagram is cutd open in side of the invention.

Fig. 7 is cross-sectional schematic diagram of the invention, the relative position of display torque arm and rigid block.

Fig. 8 is cross-sectional view of the invention, and display torque arm is located at unused state.

Fig. 9 is cross-sectional view of the invention, and display torque arm, which is located at, pulls state.

Figure 10 is the appearance top view of another embodiment of the present invention.

Figure 11 is the partial enlargement cut-away view of Fig. 9 of the invention.

Description of symbols

Handle 1

Pointer 3

Designation card 5

Torque spanner 10

Measuring device 12

Labelling piece 12b

Drive rod 14

Torque spanner 20

Drive rod 22

Pointer portion 23a

Indicating window 25

Ontology 30

Support portion 32

Second side 31b

Enlarged slot 322

First end 41

Deviation section 43

Depressed area 441

Instruction device 50

Turntable 52

External disk 522

Gear 53

Perspective portion 56

Rigid block 61

Locating piece 70

Rotary centerline X

Axial line C

Up time side region A2

Actuating strut 2

Moving head 4

Ontology 11

Pointer 12a

Handle 13

Driving portion 15

Shell 21

It is directed toward part 23

Tool heads 24

Numerical value 25a

Pulling part 31

First side 31a

Eccentric orfice 321

Torque arm 40

Second end 42

Handle 44

Bear against area 442

Tooth block 51

Inner disc 521

Resistance assembly 523

Outer cover 54

Shell 60

Guide groove 62

Torsion indicating wrench 100

Radial line L

Inverse time side region A1.

Specific embodiment

Referring to each attached drawing detailed description of the present invention exemplary embodiment, and it is not intended to technical principle of the invention Be limited to specifically disclosed embodiment, and protection scope of the present invention is only defined by the appended claims, cover substitution, Modification and equivalent.

It please refers to shown in Fig. 5 to Figure 11, is torsion indicating wrench 100 of the invention comprising have an ontology 30, a torsion Bar 40 and an instruction device 50.

Ontology 30, the support portion 32 of pulling part 31 is connected to including a pulling part 31 and one, and pulling part 31 can be unidirectionally Ratchet, commutation ratchet, open end, plum blossom end or sleeve, and pulling part 31 can be rotated along a rotary centerline X to drive Working substance rotation.There is ontology 30 vertical and by a rotary centerline X radial line L, the radial line L to indicate torsion Spanner 100 divides into reciprocal inverse time side region A1 and a up time side region A2.

Wherein, in the embodiment of the present invention, support portion 32 can be integrated with ontology 30 and be made, and support portion 32 is along radial line L extends, and the development length of support portion 32 is equal to or more than pulling part 31 in the length on radial line L.In addition, ontology 30 is pulled Dynamic portion 31 also with one first while 31a and be reversed one second while 31b, and the support portion 32 is relative to radial line L With an eccentric orfice 321, the axial line of eccentric orfice 321 is located at inverse time side region A1, and support portion 32 further includes one being connected to partially The enlarged slot 322 in heart hole 321, enlarged slot 322 is compared with eccentric orfice 321 far from pulling part 31.

Torque arm 40, linearly comprising the first end 41 of a first end 41 and a second end 42, torque arm 40 connects In support portion 32, in embodiments of the present invention, the first end 41 of torque arm 40 is incorporated into the eccentric orfice 321 of support portion 32, and Enlarged slot 322 allows torque arm 40 from inverse time side region A1 towards up time side region A2 direction elastic bending.And torque arm 40 Rotary centerline X of the second end 42 far from pulling part 31 forms a deviation between the first end 41 and second end 42 of torque arm 40 Section 43, the deviation section 43 have an axial line C, and axial line C is not parallel and conllinear with the radial line L of ontology 30 and is located at and turns round The inverse time side region A1 of power indicating wrench 100.

Wherein, and the second end 42 of torque arm 40 can be pulled for user, make the deviation section 43 of torque arm 40 from torsion The inverse time side region A1 of indicating wrench 100 is towards up time side region A2 elastic bending.And when non-working condition, torque arm 40 In the first of pulling part 31 in 31a and second while 31b in range namely torque arm 40 be no more than pulling part 31 the first side 31a, the second side 31b are not easy to take up space, have so that 100 overall appearance of torsion indicating wrench of the invention is generally in pen type shape Conducive to storing and carry.

Instruction device 50 is set between ontology 30 and torque arm 40, to pull the second end of torque arm 40 as user When 42, keep the deviation section 43 of torque arm 40 elastic from the inverse time side region A1 of ontology 30 towards the up time side region A2 of ontology 30 Bending, and torque value is observed for user.

Wherein, ontology 30 further includes the shell 60 of a hollow form, and cladding is set to support portion 32 and prolongs along radial line L It stretches.And instruction device 50 is set to shell 60, and is connected to the deviation section 43 of torque arm 40, provides torsion instruction accordingly.In addition, Shell 60 is equipped with a rigid block 61 in contrast to the end of pulling part 31, and rigid block 61 has a guide groove 62, for torque arm 40 second end 42 is passed through exposed, and is cooperated shown in Fig. 6, Fig. 7, instruction device 50 is omitted in Fig. 7 and show torque arm 40 with The relative position of rigid block 61, when Yu Zhengxiang is pulled, space of the offer torque arm 40 of guide groove 62 with movement, and torque arm 40 Then there is good backstop effect when reversely turning back.

In the embodiment of the present invention, instruction device 50 includes a tooth block 51, a turntable 52, a gear 53, an outer cover 54.Tooth Block 51 is set to torque arm 40 and adjacent to second end 42, and its flank of tooth in arcuation and is intended for support portion 32.Turntable 52 has Show that the scale of torque value, turntable 52 are rotatably dispose on shell 60, middle gear 53 is set to 52 bottom surface of turntable and protrudes into outer It is engaged in shell 60 with tooth block 51, wherein the flank of tooth of tooth block 51 forms twice of radius or more of radius at least more than gear 53.And it is outer 54 cladding of cover is set between the end of shell 60 and turntable 52, and outer cover 54 has a perspective portion 56 and an index, to right Should be in the scale on turntable 52, whereby, when torque arm 40 is pulled, then energy band moving gear 53 rotates tooth block 51, so that turntable 52 Opposite shell 60 generates rotation, and pulling part 31 is applied to the torque value of working substance and is presented with corresponding scale, and for using Person is by 56 sight of perspective portion.

Next referring to Fig. 8, as shown in figure 8, the present invention also has positioning piece 70, it is set to support portion 32 and torque arm Between 40.Further, locating piece 70 is screw piece or pin, shell 60 and support portion 32 is passed through, to be held in torque arm 40 first end 41 is not likely to produce loosening with firm torque arm 40.

Again referring to Fig. 8, the second end 42 of torque arm 40 also has a handle 44, the center portion of handle 44 is in recess Pulling part 31 is concentrated and be transferred to force in operation by shape, advantageous user, with accurate by instruction device 50 Ground indicates torque value.

As shown in figure 9, being operation of the present invention schematic diagram.In in use, pulling part 31 first to be adapted to the work such as screw piece Object, and user is exerted a force using the handle 44 of the second end 42 of torque arm 40 and is pulled using rotary centerline X as center of rotation It is dynamic, make torque arm 40 deviation section 43 can from the inverse time side region A1 of ontology 30 towards up time side region A2 direction elastic bending, And then the strength for reaching application is transferred to working substance, and it is turned.If application strength is bigger in operating process, torsion The second end 42 of bar 40 can then cross radial line L, and when torque arm 40 generates elastic bending, then tooth block 51 is with 53 turns of moving gear Dynamic, to promote the turntable 52 of instruction device 50 to rotate, whereby, user can observe from the perspective portion 56 of outer cover 54 and be applied to work The torque value of object, to control the torsion for tightening work object.

In the present embodiment, since the flank of tooth of tooth block 51 forms radius at least more than twice of radius or more of gear 53, make Obtaining torsion scale has effects that more times of amplifications, reads in order to which user differentiates.Taking the embodiment of the invention as an example, work as torque arm 40 when relatively radially line L pulls 10 degree, and gear 53 is able to rotation 3/4ths and encloses (270 degree) at this time, and torsion scale is with 27 times Amplification effect, in this way, which the scale on turntable 52 can mark off smaller thin scale, to correspond to torque value, providing makes User is easy to differentiate the torsion state currently pulled in operation.

It as shown in Figure 10, Figure 11, is another embodiment of the present invention.As shown in Figure 10, component identical with previous embodiment To indicate identical components title and symbol, and the specification specified of these components is omitted, and the present embodiment is with aforementioned difference, holds Have 44 and meet the shape of ergonomics, the perspective portion 56 of handle 44 and instruction device 50 is ipsilateral to set that there are two depressed areas 441, the depressed area 441 is located at inverse time side region A1, and so that middle finger and the index finger of user is born, and handle 44 is in perspective The opposite side in portion 56 is additionally provided with a breasting area 442 and extends towards 30 direction of ontology, so that the thumb of user is born, in switching It when operation, avoids user's finger from exerting a force and is contacted with the outer cover 54 of instruction device 50, lead to generate reaction force in handle 44, and Influence the precision that instruction device 50 shows torque value.

As shown in Figure 10, the turntable 52 of instruction device 50 is located at inner disc 521 including an inner disc 521, an external disk 522 and one Resistance assembly 523 between external disk 522, resistance assembly 523 can be o-ring or c-type button.When switching operation, pass through resistance Resistance provided by power component 523, external disk 522 are rotated with gear 53 with inner disc 521 and are rotated together with；And it needs to re-calibrate When, turning external disk 522 can rotate relative to inner disc 521, so that the scale in external disk 522 can be with respect to the finger on outer cover 54 Show and carries out zero adjustment.

Synthesis is aforementioned, and the present invention passes through 40 opposing body of torque arm in addition to it can provide the effect of user observes torque value 30 are set for the eccentric, so that torque arm 40 in operating process, is from 30 inverse time of ontology side region A1 towards the up time side region side A2 To pulling, so that 100 overall appearance of torsion indicating wrench can be in pen type shape, do not take up space with small and exquisite, and be conducive to storage The advantages of with carrying.

Further, due to torsion indicating wrench 100 have the advantages that it is small and exquisite, compared to for existing torque spanner more Structure without lateral evagination is so in operation also avoided that touching for the space with arround, uses upper comparable convenience.

Embodiment provided above is only to illustrate the present invention, the protection scope being not intended to limit the invention.It is all not Various modifications or change that spirit of that invention is engaged in are disobeyed, are all belonged to the scope of protection of the present invention.

Claims

1. a kind of torsion indicating wrench characterized by comprising

One ontology comprising a pulling part and one be connected to the pulling part support portion, which can be along in a rotation Heart line is rotated to drive working substance to rotate, which has a radial line that is vertical and passing through the center of rotation, the radial direction Torsion indicating wrench is divided into reciprocal inverse time side region and a up time side region by line；

One torque arm a comprising first end and a second end, the first end of the torque arm are connected to the support portion, the torque arm Rotary centerline of the second end far from the pulling part, a deviation section is formed between the first end and the second end, the deviation section Axial line be located at the inverse time side region, the second end of the torque arm can be pulled for user, make the inclined of the torque arm Position section is from the inverse time side region towards the up time side region direction elastic bending；And

One instruction device is set between the ontology and the torque arm, when the deviation section of the torque arm is from the inverse time side region court To when the up time side region direction elastic bending, torque value can be observed for user.

2. torsion indicating wrench as described in claim 1, which is characterized in that the axial line of the deviation section and the radial direction of the ontology Line is parallel and not conllinear and is located at the inverse time side region.

3. torsion indicating wrench as claimed in claim 2, which is characterized in that the support portion is inclined with one relative to the radial line Heart hole, the axial line of the eccentric orfice are located at the inverse time side region, and the first end of the torque arm is incorporated into the eccentric orfice.

4. torsion indicating wrench as claimed in claim 3, which is characterized in that the torque arm is linearly.

5. torsion indicating wrench as claimed in claim 3, which is characterized in that the support portion further includes having one to be connected to the bias The enlarged slot in hole, the enlarged slot allow the torque arm from the inverse time side region towards the up time side region direction elastic bending.

6. torsion indicating wrench as claimed in claim 5, which is characterized in that the support portion is integrated with the pulling part, the branch Support part extends along the radial line, which is equal to or more than the pulling part in the radial line in the development length of the radial line Length；The pulling part is single direction ratchet, commutation ratchet, open end, plum blossom end or sleeve；The support portion and the torque arm it Between also set up positioning piece.

7. torsion indicating wrench as described in claim 1, which is characterized in that the ontology further includes the shell of a hollow form, Cladding is set to the support portion and extends along the radial line, and the second end of the torque arm exposes to except the shell, the instruction Device is set to the shell and is connected to the deviation section of the torque arm.

8. torsion indicating wrench as claimed in claim 7, which is characterized in that the shell is equipped in contrast to the end of the pulling part One rigid block, the rigidity block with a guide groove, for the torque arm second end pass through it is exposed.

9. torsion indicating wrench as claimed in claim 8, which is characterized in that the second end of the torque arm has a handle, Center portion is recessed.

10. torsion indicating wrench as claimed in claim 8, which is characterized in that the second end of the torque arm has a handle, It is located at the up time side region with two depressed areas for being located at the inverse time side region and one and is held towards what the ontology direction extended By area.

11. torsion indicating wrench as claimed in claim 7, which is characterized in that the instruction device is set to the torsion including one The tooth block of bar；One with graduated turntable, is rotatably dispose in the shell, which there is a gear to engage with the tooth block；It should Instruction device further includes an outer cover, and cladding is set between the end of the shell and the turntable, which has a perspective portion, It corresponds to the scale on the turntable.

12. torsion indicating wrench as claimed in claim 11, which is characterized in that the flank of tooth of the tooth block forms radius and is greater than the tooth Twice of the radius of wheel.

13. torsion indicating wrench as claimed in claim 11, which is characterized in that the turntable includes an inner disc and an external disk, is somebody's turn to do External disk is located on the inner disc periphery, and being capable of relative rotation.