CN205630453U - Torque spanner of recoverable torsion - Google Patents

Abstract

The utility model provides a torque spanner of recoverable torsion, this spanner include mechanical structure and electronic structure, and its mechanical structure includes a pipe shaft to and install and scratch pole, one in one of this pipe shaft and hold piece, an elastic element, one jump that the off -line is constructed, a guiding mechanism, and the scale of a mechanicalness marks the structure, with the torsion that shows that this spanner is set for, its electronic structure includes: an at least torsion sensor and a display element, this sensor establish and scratch pole one side at this to listen this deflection of scratching the pole. Through the aforesaid structure, the mechanical structure's of this spanner of recoverable torsion value is adjusted the torsion value of listening with this sensor with this mechanical structure's torsion value and is conformed to rectify the error of its mechanical structure's torsion value. The utility model discloses have mechanical structure and electronic structure, can utilize its electronic structure to proofread and correct its mechanical structure's torsion value to the problem of getting rid of the error of this spanner.

Description

The torque spanner of recoverable torsion

Technical field

This utility model is relevant with torque spanner, the concrete torsion correction knot referring to a kind of mechanical type torque spanner Structure.

Background technology

Torque spanner has the function that can set torsion, and has warning function, when the force of this spanner arrives After set torsion, just produce alarming effect.Mechanical torque spanner has a separating mechanism, and with One flexible member withstands this separating mechanism, and the lever rear end of spanner is provided with a guiding mechanism, can change this elasticity Element puts on the elastic force of this separating mechanism；On the lever of this spanner and be provided with a graduated form of tool, The torque value set by this spanner is shown through this scale.During use, when spanner rotating bolt or nut When force exceedes set torque value, this separating mechanism will produce escape, and then produce vibrations and a sound Ringing, by vibrations and/or the sound of spanner, user can learn that the force of this spanner has arrived this and set immediately Definite value.

This spanner is after long-time use, and its separating mechanism will occur significantly abrasion, cause this spanner Set torsion (i.e. torsion during separating mechanism escape) fict torsion, it is, this setting Torque value and real torque value there is drop, such as, the torque value set by this spanner is by user 2 Newton meters, but, locking torque value but only 1.6 Newton meters that this spanner is real, cause bolt/nut It is not secured to due torque value, affects the safety of plant equipment or building.

When mechanical torque spanner has error, spanner generally must be sent back to manufacturer or retailer by user Locate renewal part or be corrected, and cannot self-correction torsion.

Utility model content

Main purpose of the present utility model is to provide the torque spanner of a kind of mechanicalness structure, and this spanner has The design of correction torsion, is available for users to correct the torsion of this spanner.

Another object of the present utility model is to provide the torsion correcting structure of a kind of mechanicalness torque spanner, should Spanner has mechanical torque tripping function structure and torsion setting mechanism, and is further provided with the torsion of at least one electronic type Power sensor, makes this utility model implement, with the means of " electronic calibration machinery ", to reach to correct this torsion and pull The purpose of the torque value of hands.

The purpose of this utility model is realized by following technical proposals: the torque spanner of a kind of recoverable torsion, bag Contain:

One pipe shaft；

One head, is positioned at this pipe shaft front end；One scratches bar, is hubbed on this pipe shaft front end, and swingable；This is scratched Rod rear end is positioned at this pipe shaft；This head is fixed in this and scratches bar front end；

One holding piece and a flexible member, be located in this pipe shaft, and this holding piece is positioned at this and scratches bar rear, and can At this pipe shaft intrinsic displacement；The front end elasticity of this flexible member props up this holding piece；

One separating mechanism, is located at this and scratches between rod rear end and this holding piece front end；This scratch bar and this holding piece with This separating mechanism contacts；

One guiding mechanism, is located at this pipe shaft rear end, and with this resilient element contacts, this guiding mechanism adjustable This flexible member presses on the elastic force of this holding piece；

One mechanical scale indicates, and is positioned at this pipe shaft, for the torque value set by this spanner of interpretation；

At least one torsion sensor, is located at this and scratches bar side, to detect this deflection scratching bar；

At least one display unit, is located at this pipe shaft；The torque value that this torsion sensor is detected shows and shows at this Show unit.

Further, this is scratched bar and has a centrage；This separating mechanism is positioned at this and scratches on the centrage of bar.

Further, a form, it is located at this pipe shaft side face；This guiding mechanism includes a sliding component, is located at this In pipe shaft, can be at this pipe shaft intrinsic displacement, this sliding component props up this flexible member rear end；This guiding mechanism can carry This sliding component displacement dynamic；One scale plate, its surface is provided with scale, and this scale plate is located at this sliding component side face, Can be with this sliding component sliding, and between this form and this sliding component.

Further, this pipe shaft is provided with a hollow part；This scale plate is provided with the groove of a longitudinal direction；One connecting element, Through the groove of this scale plate, and removably this scale plate is fixed on this sliding component, this connection Element is corresponding to the hollow part of this pipe shaft.

Further, this guiding mechanism further includes: a lever and an adjustment part；This adjustment part is located at this pipe shaft In, can rotate in this pipe shaft, it is impossible to displacement, this adjustment part front end and this sliding component rear end bolt；Should Handle cover is located at this pipe shaft rear end, and is connected with this adjustment part；When rotating this lever, this adjustment part can be driven Rotate.

Further, an end cap, it is connected to this lever front end removably；This end cap is connected to this During lever, cover this hollow part；When this end cap separates with this lever, this hollow part exposes.

Further, this lever is connected with this adjustment part removably；This lever connects this adjustment part Time, cover this hollow part.

Further, the outer peripheral face of this pipe shaft is provided with scale；This guiding mechanism includes: a lever and adjusts Part；This adjustment part is located in this pipe shaft；This handle cover is located at this pipe shaft rear end, and with this adjustment part with adjustable The mode of its relative position in the axial direction of pipe shaft whole connects；In place of this lever front-end edge is positioned at this scale, When rotating this lever, this lever and this adjustment part are along the length travel of this pipe shaft.

Further, having further included: an electronic installation, be installed in this pipe shaft, this electronic installation includes: One housing, a circuit unit, at least one button and described display unit；This housing is located on this pipe shaft； This circuit unit, this button and this display unit are located in this housing, this button and this display unit and this electricity Road unit is electrically connected with.

Further, this separating mechanism is symmetrical structure, and its center falls and scratches on the centrage of bar at this.

This utility model compared with prior art, has the advantage that

Torque spanner of the present utility model has frame for movement and electronic structure, and its electronic structure can be utilized to come school The just torque value of its frame for movement, with the problem getting rid of the error of this spanner.

By the purpose of this utility model, feature and the effect reached can be further appreciated that, the most hereby lift this The some preferred embodiments of utility model, and after coordinating diagram to be described in more detail in.

Accompanying drawing explanation

Fig. 1 is the top view of the torque spanner of this utility model one preferred embodiment.

Fig. 2 is the side view of the torque spanner of this utility model one preferred embodiment.

Fig. 3 is the profile of the 3-3 hatching line of Fig. 2.

Fig. 4 is the profile of the 4-4 hatching line of Fig. 1.

Fig. 5 is the partial enlarged drawing of Fig. 3.

Fig. 6 is the partial enlarged drawing of Fig. 4.

Fig. 7 is the partial exploded perspective view of this utility model one preferred embodiment.

Fig. 8 is the circuit block diagram of the spanner of this utility model one preferred embodiment.

Fig. 9 is the part sectioned view of this utility model one preferred embodiment.

Figure 10 is the flow chart of the correction torsion of spanner of the present utility model.

Figure 11 is the profile of the spanner of this utility model one preferred embodiment.

Figure 12 is the part sectioned view of the spanner of this utility model the second preferred embodiment.

Figure 13 is the part sectioned view of the spanner of this utility model the 3rd preferred embodiment.

Figure 14 is the part sectioned view of the spanner of this utility model the 4th preferred embodiment.

Figure 15 is the top view of the spanner of this utility model the 5th preferred embodiment.

Description of reference numerals: 10-spanner；20-pipe shaft；22-head；23-Transparent Parts；24-form；25- Scratch bar；251-pivot；26-lid；27-is recessed；28-scale plate；281-scale；282-groove；283- Connecting element；29-hollow part；30-holding piece；32-flexible member；40-guiding mechanism；34-sliding component； 35-screw；42-lever；44-adjustment part；45-threaded shank；46-end cap；50-separating mechanism；52- One recess；54-the second recess；55-jacking block；60-torsion sensor；70-electronic installation；71-housing； 72-display unit；74-circuit unit；76-button；90-rolling element；91,92-round bar；94-recess.

Detailed description of the invention

Refer to Fig. 1 to Fig. 4, a preferred embodiment of torque spanner 10 provided by the utility model, be somebody's turn to do Spanner 10 is a mechanical torque spanner, and including the jump construction of mechanicalness structure, meanwhile, it also has There is the component of electronic type, including a torsion sensor and electronics screen.Purpose of design of the present utility model is profit The electronic structure being had with this spanner itself corrects the torsion of its mechanicalness structure.

The structure of this spanner of following description.Refer to Fig. 3 to Fig. 5, this spanner 10 have a pipe shaft 20 and One head 22 being positioned at this pipe shaft 20 front end.This head 22 can be the structure shape such as open-end wrench or ratchet spanner Formula, is not limited with the structure of the present embodiment；This spanner 10 is to rotate, with this head 22, the component (bolt that is spirally connected Or nut) or sleeve.One scratches bar 25, is a symmetrical body of rod, is hubbed on this pipe with a pivot 251 Body 20 front end, and be able to this pivot 251 and swing for rotating fulcrum.This is scratched bar 25 rear end and is positioned at pipe shaft 20 In, its front end is then affixed with this head 22.

One holding piece 30, flexible member (being a compression spring) 32 and a sliding component 34, depends on from front to back Sequence is located in this pipe shaft 20.This holding piece 30 is positioned at this and scratches bar 25 rear, and can slide in pipe shaft 20. This sliding component 34 can sliding in this pipe shaft 20, but cannot rotate, and the inside of sliding component has a screw 35；This flexible member 32 is between this holding piece 30 and this sliding component 34, and its forward and backward two ends are respectively Elasticity props up this holding piece 30 and this sliding component 34.

One guiding mechanism 40, including: above-mentioned sliding component 34, is set in this pipe shaft 20 rear end outer peripheral face Lever 42, and one be located at the adjustment part 44 in this pipe shaft 20, and this adjustment part 44 can only be at pipe shaft 20 Interior rotation but cannot displacement.Adjustment part 44 rear end is directly connected with this lever 42 or through other components Ground connection is connected with this lever 42, and its front end is a threaded shank 45, is spirally connected with the screw 35 of this sliding component 34. When rotating this lever 42, this adjustment part 44 rotates together with this lever 42, and this threaded shank 45 just drives should Sliding component 34 is along pipe shaft 20 sliding front and back, in order to adjust sliding component 34 to different positions.Whereby, It is changed this flexible member 32 and presses on the elastic force of this holding piece 30.This lever 42 can be from this pipe shaft 20 rear ends are taken off, and are disconnected relation with this adjustment part 44.One end cap 46, is removably socketed in lever 42 front ends, its side face also is provided with scale.

Please refer to Fig. 6, a separating mechanism 50, it is located at this and scratches between bar 25 rear end and this holding piece 30, When the force of this spanner exceedes set torsion, this separating mechanism produces escape effect.Separating mechanism 50 Can be different forms, not be limited with content disclosed in this specification.The present embodiment discloses the jumping of a kind of form Release mechanism.This separating mechanism 50 includes: one is located at this first recess 52, scratching bar 25 rear end is located at this Second recess 54 of holding piece 30 front end and a rectangular body or cubical jacking block 55, this jacking block 55 Contacting with these two recesses 52,54, the width of these two recesses 52,54 is equal or slightly larger than this jacking block 55 Width.Owing to holding piece 30 bears the elastic force of this flexible member 32, therefore this jacking block 55 is by holding piece 30 and scratch bar 25 resilient clamp.

This separating mechanism 50 is when general state, and these two recesses 52,54 are the most right, before this jacking block 55, Latter two end face contacts with these two recesses respectively.

Referring to Fig. 5, Fig. 7, the spanner of the present embodiment has a mechanical scale indicating arrangement, specifically Say that the form 24 of a transmission is located at this pipe shaft 20 end face；One Transparent Parts 23, is installed in this form 24, Its surface is provided with a graticule 231；One lid 26, is installed in this pipe shaft 20 periphery；This Transparent Parts 23 is by being somebody's turn to do Lid 26 is fixed.One scale plate 28, its surface printing has scale 281, and it is longitudinally provided with a groove 282； One connecting element, is a primary screw 283, through this groove 282, this scale plate 28 is screwed in this sliding component The side face of 34, makes this scale plate 28 along with sliding component 34 displacement, and is positioned at below this form 24.Please join Seeing Fig. 2, user can see the scale 281 of this scale plate from this Transparent Parts 23, so as to learning this spanner institute The torque magnitude set.This pipe shaft 20 has a hollow part 29, and this primary screw 283 is corresponding to this hollow part. At the present embodiment, described hollow part 29 be along pipe shaft longitudinally set by wear groove, this primary screw 283 houses In the hollow part 29 of this longitudinal direction.The structure of the hollow part 29 of this longitudinal direction it is located in by this primary screw 283, Sliding component 34 can only sliding in pipe shaft 20, it is impossible to rotate.

In addition to above-mentioned mechanicalness structure, spanner of the present utility model is further provided with following electronic structure, with For correcting the torsion of this spanner.Referring to Fig. 6, this is scratched bar 25 and sets one recessed 27 at least one side；Extremely Few torsion sensor 60, such as tension gauge or strain gauge etc., be located at this scratch bar 25 recessed 27 in, with Sense this deflection scratching bar.

Refer to Fig. 2, a display unit, the electronic display 72 of the most various liquid crystal screen, it is located at this pipe Body 20 side face, and be electrically connected with this torsion sensor 60, the torque value that this torsion sensor is detected can Display is at this display screen 72.Specifically, such as Fig. 5, this utility model is further by an electronic installation 70 Being installed in this pipe shaft 20, it includes: a housing 71, this electronic display 72, one circuit unit are (such as It is provided with a circuit board 74 of printed circuit) and at least one button 76, the present embodiment has two buttons.This shell Body 71 is fixedly arranged on this pipe shaft 20；This electronic display 72, circuit board 74 and this two buttons 76 are located at this In housing 71, and this display screen 72 and this two buttons 76 are electrically connected with this circuit board 74；This torsion Sensor 60 is also electrically connected with this circuit board 74, through the running of this circuit unit, makes this sensor 60 The torque value sensed can be displayed in this display screen 72；These two buttons 76 can perform some use functions, Such as, but be not limited, open and close power supply, input numerical value, select, set, storage etc..

Referring to Fig. 8, the circuit structure of this electronic installation 70 includes: a microprocessor 80, and with this USB converting unit 82, one electronics that microprocessor 80 is electrically connected with is erased formula ROM (EEPROM Memory) 84, and aforesaid torsion sensor 60 and display unit 72, more can be further provided with at least one LED, buzzer and electromagnetic shaker 86.Additionally, the appropriate location of this spanner or this electronic installation 70 are provided with Power supply.

When spanner 10 of the present utility model uses, using its mechanicalness structure as main use part, with Judge whether to arrive set torsion.During as it was previously stated, user to set the torsion of this spanner, by This guiding mechanism 40 drives this sliding component 34 sliding, to change the elasticity energy of this flexible member 32, works as bullet When property element 32 holds this holding piece 30 with bigger elastic force, this spanner is set as higher torsion, Make this separating mechanism 50 must bear bigger active force and just can produce escape；Otherwise, flexible member 32 with When less elastic force holds this holding piece, then spanner is set as relatively low torsion.User is by this scale The scale 281 of sheet 28 can learn set torque value.

When the strength that this spanner 10 rotates be spirally connected component or sleeve arrives the torsion set, this separating mechanism 50 just produce slippage/escape, as it is shown in figure 9, this scratches bar 25 rear end and this holding piece 30 respectively toward both sides Beat, these two recesses 52,54 form misaligned state, do not align, and this jacking block 55 produces and rotates, and This two recesses are contacted respectively with two angles.When there is escape phenomenon in separating mechanism 50, by generation vibrations and Sending the sound, by its vibrations and the sound, user can judge that the force of this spanner arrives easily and quickly Reach the torsion of setting.This spanner 10 is when generally using, and is not required to open the power supply of its electronic structure, also It is exactly not whether to arrive setting value using this sensor 60 as the torsion of sensing spanner.

After this spanner uses a period of time, this separating mechanism 50 will produce abrasion, causes flexible member 32 elastic forces pressing on sliding component 34 reduce, and make spanner produce error, and such as, this scale plate 28 shows Torsion set by spanner 10 is 2 Newton meters, but real torsion only has 1.6 Newton meters.Now, make User may utilize the electronic component of this spanner and corrects and adjust the error of its frame for movement.

Figure 10 shows that this spanner 10 corrects the flow process of its frame for movement with its electronic structure, and this scratches bar, this top Gripping member, this flexible member, this sliding component, this separating mechanism and guiding mechanism form the frame for movement of this spanner, This torsion sensor and this electronic installation then form the electronic structure of this spanner, and the bearing calibration of its torsion comprises Following steps.

One, start:

Open the power supply of this electronic installation 70 with a button 76, be powered at this electronic installation, make this electronics fill Put and come into operation.

The torque magnitude of the frame for movement required locking spiro connecting element of two, setting/adjustment spanner:

Set/adjust the frame for movement of this spanner to the torque value needed for this guiding mechanism 40, described The torque value of frame for movement is torque value during this separating mechanism 50 escape, such as, sets the torsion of this spanner Force value is 3 Newton meters (numerical value shown by scale plate).

Three, torque magnitude during torsion sensor detecting separating mechanism escape:

Then force pulls this spanner 10, and during spanner is pulled, this is scratched bar 25 and generation is bent, The dependent variable of bar 25 is scratched in the detecting of this torsion sensor 60, with the instant torsion detecting this spanner.Persistently execute Power is until this separating mechanism 50 produces escape, and this sensor 60 just can detect this spanner 10 at escape machine During structure 50 escape, this scratches the torque magnitude of bar 25, and it is the real torque value of spanner.This electro torsion The torque value that sensor 60 is detected is accurate, therefore can record the torque value of spanner accurately.

Four, torsion during this display unit display separating mechanism escape or display acrotorque；Buzzer is alert Show and LED flash and vibrations warning:

When escape, the torque value of bar 25 dependent variable that what this torsion sensor 60 was detected scratch shows and shows at this Display screen 72, the circuit design of this electronic installation 70 makes torque value during this separating mechanism 50 escape show at this On display screen 72, or pull and show to the acrotorque value produced between escape during spanner and showing Display screen.It is, this torque value shown by display screen 72 is the acrotorque value in spanner trimming process. The peak value of this utility model record torque value, recorded or display is trimming process at the numerical value of this display screen In, the acrotorque value of separating mechanism 50.

Additionally, this electronic installation 70 can arrange LED, buzzer and electromagnetic shaker further, therefore can be by Light flash, sound or vibrations warning, remind this separating mechanism of user to produce escape.

Five, the frame for movement of this spanner of comparison set/whether the torque value that adjusts coincide this torsion sensor The torque value detected:

The torque value (hereinafter referred to as electronics sensing torque value) that this torsion sensor 60 is detected shows in this display Screen 72, by this torque value and torque value (the i.e. torsion shown by this scale plate set by this spanner frame for movement Force value, hereinafter referred to as machinery torque value) compare, if machinery torque value differs with electronics sensing torque value, Such as electronics sensing torque value is 2.7 Newton meters, unsuitable with set mechanical torque value (3 Newton meter), Then correcting process returns to step 2 and carries out correction program again, adjusts according to this error amount (0.3 Newton meter) and pulls The torsion of the frame for movement of hands, and continue correction according to correcting process.

Six, corrected, shutdown:

After the trimming process of above-mentioned steps two to step 5, machinery torque value senses torque value phase with electronics Meeting, just complete torsion correction operation, the frame for movement (separating mechanism) of spanner replys correct torque value. Close the power supply of this electronic installation 70, terminate correction program.

Mechanical torque value after adjustment falls in the range of 0.96 times to 1.04 times of electronics sensing torque value, Meet exact value.Mechanical torque value after adjustment is 1.04 times of electronics sensing torque value and is preferred.

This utility model corrects the torsion of its frame for movement with the electronic structure of spanner, has one in structure design It is important that: this separating mechanism 50 is positioned at this and scratches on the centrage C of bar 25, it is, these two recesses 52, 54 and this jacking block 55 all fall within this centrage C rather than be positioned at outside this centrage C.Through inventor's Research display, when separating mechanism 50 is positioned at the center scratching bar 25, the torque value that sensor 60 is detected is real For real torque value during spanner escape；If the position of separating mechanism 50 is eccentric (namely not at scratching bar Center), then true during separating mechanism 50 escape of the torque value not spanner that this sensor 60 is detected Positive torque value, is even up to percent tenths of error time maximum.This utility model (comprises the present embodiment And following embodiment) separating mechanism be symmetrical structure, its center falls and scratches on the centrage of bar at this, To obtain measured value accurately.

Figure 11 shows the mode of the torque value adjusting this spanner 10 frame for movement.Owing to separating mechanism 50 grinds During damage, cause the bullet impaired performance of this flexible member 32 so that the torque value of the frame for movement of spanner is forbidden Really.Flexible member 32 is replied correct elasticity energy by trimming process, user by sliding component 34 toward escape machine Structure 50 shifts near, and improves the elasticity energy of flexible member, and the elasticity caused to compensate separating mechanism abrasion can drop Low error.When there is error, this scale shown by scale plate 28 is the most incorrect, therefore must adjust scale The sheet 28 position on sliding component 34.Therefore when carrying out the adjustment of the torque value of step 2, by guiding mechanism 40 Lever 42 pull down, such as Figure 11, make hollow part 29 expose, corrector can unscrew this primary screw 283, with Unclamp scale plate 28, then according to electronic torsion sensing value scale plate 28 be moved rearwardly into tram and lock Tightly, scale plate 28 is made to be positioned at the position of the correct torque value of display.After having corrected, shown by scale plate Numerical value just meet the torque value that torsion sensor 60 is detected.

Figure 12 is the second preferred embodiment of spanner 10 of the present utility model, and continues to use the unit of first embodiment Part symbol.In the present embodiment, during the adjustment of step 2 to be carried out, end cap 46 is separated with lever 42, Hollow part 29 and primary screw 283 can be made to expose, for the position adjusting scale plate 28.Treat scale plate 28 Position adjustment complete, again end cap 46 is socketed in lever 42 front end, covers hollow part 29.Whereby, When adjusting the torque value of frame for movement of spanner, it is not necessary to take off this lever 42.

The adjustment operation of this scale plate 28 is easily carried out, therefore user can carry out torsion correction operation voluntarily, It is not required to send spanner back to manufacturer or retailer.

Figure 13 is the 3rd preferred embodiment of spanner of the present utility model, and continues to use identical component symbol. The present embodiment essentially consists in the another form of separating mechanism 50 of exposure.This separating mechanism 50 includes a rolling Element 90 (ball or cylinder) and two round bars 91,92, it is respectively provided at this holding piece 30 front end and scratches with this Bar 25 rear end, this rolling element 90 contacts with these two round bars 91,92.Same, this separating mechanism 50 are positioned on the centrage C scratching bar 25, and the torque value making sensor 60 be detected is separating mechanism 50 Real torque value.It is, these two round bars 91,92 are symmetrically located at this centrage C both sides；This rolling Dynamic element 90 also is located on this centrage.

Figure 14 is the 4th preferred embodiment of spanner of the present utility model, discloses another separating mechanism 50. This separating mechanism 50 includes a rolling element 90 (ball or cylinder) and a curved recess 94, sets respectively Scratching bar 25 rear end in this holding piece 30 front end with this, this rolling element 90 contacts with this recess 94.Whereby, This separating mechanism 50 also is located at scratching on the centrage C of bar 25, specifically, this rolling element 90 and should Recess 94 is respectively positioned on this centrage.

Figure 15 is the top view of the 5th preferred embodiment of spanner of the present utility model, and identical element also makes With identical component symbol.

The present embodiment is also not provided with aforesaid scale plate；And pipe shaft be not provided with form.The week of this pipe shaft 20 Face is provided with scale 281.The adjustment part 44 of guiding mechanism 40 is arranged in this this pipe shaft 20, and its front end is also supported Live a sliding component or this flexible member；It is axial at pipe shaft 20 with adjustable for this lever 42 and adjustment part 44 On the mode of relative position connect.The torque value of this spanner 10 of adjustable, this adjustment when rotating lever 42 Part 44 and this lever 42 are together in the axial displacement of pipe shaft, to change the elasticity energy of flexible member.This lever The front-end edge 421 of 42 and this scale 281 form the structure that a scale indicates, indicated by this leading edge 421 Numerical value, for the torque value set by this spanner.When the torque value of the frame for movement of spanner 10 produces error, Carrying out aforesaid correction program equally, user releases this lever 42 and the annexation of adjustment part 44, depends on Lever 42 is adjusted to correct position by the torque value that electronic structure is detected so that it is leading edge 421 is just positioned at In true scale value, finally lever 42 is reconnected with adjustment part 44, i.e. complete the correction program of torsion. When the present embodiment is corrected, changes the relative position of this lever 42 and this adjustment part 44, make lever 42 Front-end edge 421 indicate in correct scale value.

This utility model is with easily perceivable mechanicalness structure, as use structure during this wrench operated；And Utilize the accuracy of electronic component, when there is abrasion in the separating mechanism of this spanner, practicable electronic calibration machine The correction operation of tool error, replys correct numerical value by the torque value of frame for movement.Furthermore, this utility model Design make user can be corrected operation voluntarily.

Above-described embodiment only illustrates this utility model and unrestricted, the adjustment structure of such as its separating mechanism and spanner Make and be not limited with shown in embodiment.In sum, this utility model is the structure that ware is pioneering, and has The enhancement of many practical effects, files an application in whence in accordance with the law.

Claims (10)

1. the torque spanner of a recoverable torsion, it is characterised in that: comprise:

One pipe shaft；

One head, is positioned at this pipe shaft front end；One scratches bar, is hubbed on this pipe shaft front end, and swingable；This is scratched Rod rear end is positioned at this pipe shaft；This head is fixed in this and scratches bar front end；

One holding piece and a flexible member, be located in this pipe shaft, and this holding piece is positioned at this and scratches bar rear, and can At this pipe shaft intrinsic displacement；The front end elasticity of this flexible member props up this holding piece；

One separating mechanism, is located at this and scratches between rod rear end and this holding piece front end；This scratch bar and this holding piece with This separating mechanism contacts；

One guiding mechanism, is located at this pipe shaft rear end, and with this resilient element contacts, this guiding mechanism adjustable This flexible member presses on the elastic force of this holding piece；

One mechanical scale indicates, and is positioned at this pipe shaft, for the torque value set by this spanner of interpretation；

At least one torsion sensor, is located at this and scratches bar side, to detect this deflection scratching bar；

At least one display unit, is located at this pipe shaft；The torque value that this torsion sensor is detected shows and shows at this Show unit.

2. torque spanner as claimed in claim 1, it is characterised in that: this is scratched bar and has a centrage； This separating mechanism is positioned at this and scratches on the centrage of bar.

3. torque spanner as claimed in claim 1 or 2, it is characterised in that: a form, it is located at this pipe Body side face；This guiding mechanism includes a sliding component, is located in this pipe shaft, can be at this pipe shaft intrinsic displacement, and this is sliding Move part and prop up this flexible member rear end；This guiding mechanism can drive this sliding component displacement；One scale plate, its table Face is provided with scale, and this scale plate is located at this sliding component side face, with this sliding component sliding, and can be positioned at this form And between this sliding component.

4. torque spanner as claimed in claim 3, it is characterised in that: this pipe shaft is provided with a hollow part； This scale plate is provided with the groove of a longitudinal direction；One connecting element, through the groove of this scale plate, and with dismountable side This scale plate is fixed on this sliding component by formula, and this connecting element is corresponding to the hollow part of this pipe shaft.

5. torque spanner as claimed in claim 4, it is characterised in that: this guiding mechanism further includes: one Lever and an adjustment part；This adjustment part is located in this pipe shaft, can rotate, it is impossible to displacement in this pipe shaft, should Adjustment part front end and this sliding component rear end bolt；This handle cover is located at this pipe shaft rear end, and with this adjustment part Connect；When rotating this lever, this adjustment part can be driven to rotate.

6. torque spanner as claimed in claim 5, it is characterised in that: an end cap, with dismountable side Formula is connected to this lever front end；When this end cap is connected to this lever, cover this hollow part；This end cap is held with this When handle separates, this hollow part exposes.

7. torque spanner as claimed in claim 5, it is characterised in that: this lever is removably It is connected with this adjustment part；When this lever connects this adjustment part, cover this hollow part.

8. torque spanner as claimed in claim 1 or 2, it is characterised in that: the outer peripheral face of this pipe shaft sets There is scale；This guiding mechanism includes: a lever and an adjustment part；This adjustment part is located in this pipe shaft；This is held Sleeve is located at this pipe shaft rear end, and with this adjustment part with its relative position in the axial direction of pipe shaft of adjustable Mode connects；In place of this lever front-end edge is positioned at this scale, when rotating this lever, this lever and this adjustment part Length travel along this pipe shaft.

9. torque spanner as claimed in claim 1 or 2, it is characterised in that: further include: an electronics Device, is installed in this pipe shaft, and this electronic installation includes: a housing, a circuit unit, at least one button And described display unit；This housing is located on this pipe shaft；This circuit unit, this button and this display unit Being located in this housing, this button and this display unit are electrically connected with this circuit unit.

10. torque spanner as claimed in claim 1 or 2, it is characterised in that: this separating mechanism is left and right Symmetrical structure, its center falls and scratches on the centrage of bar at this.