CN2491189Y

CN2491189Y - Electronic torque wrench

Info

Publication number: CN2491189Y
Application number: CN 01242301
Authority: CN
Inventors: 孙立智; 王乃珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-22
Filing date: 2001-06-22
Publication date: 2002-05-15
Anticipated expiration: 2011-06-22

Abstract

The utility model relates to a torque wrench. A force applying handle and a pulling rod of a wrench are respectively connected with a basic part and a measuring part of a pressure sensor. When relative pressure exists between the force applying handle and the pulling rod, the pressure sensor measures the pressure value which is converted into torque reading data through a conversion unit, displayed and output in numbers through a display screen. The utility model can accurately measure the torque reading data, and is fairly convenient to operate, which makes up for the deficiencies in accuracy as well as operation convenience of the prior torque wrench.

Description

Electronic type torsional force wrench

The utility model relates to a kind of instrument, particularly a kind of spanner.

Traditional torque spanner, shown in accompanying drawing 1, accompanying drawing 2, wrenching bar 10 its fit heads 11, the one extension is provided with pointer bar 12 (or claiming baseline rod), the wrenching bar 10 of pointer bar 12 ends is provided with a torsion graduation apparatus 13, and the end in addition of wrenching bar 10 is pivoted with lever 14 inner fits and forms.Can be with spanner fit head and work package fit (can see through the sleeve fit) mutually, and the operator can pass through lever 14 application of force switching spanners and work operations part, wherein, this lever 14 a little 15 is pivoted to be pivoted mutually with wrenching bar 10 ends, supports spanner for the operator is concentrated from a biography that is pivoted in all directions strength of lever 14; So when the strength of application of force switching spanner exceeded preset value, this pointer can be depart from (being flat passerby under the normality) of relative angle with wrenching bar 10 bodies, the deviation angle of pointer bar and spanner shaft, and indicated the torsion that imposes on spanner; In addition, it changes reading apart from pointer traditional torque spanner, must just can read under the user continues state that the application of force reverses, makes read untrue so cause easily trembling because of user's application of force; Expose to wrenching bar because the pointer bar protrudes in addition, influence the degree of accuracy so be collided quite easily; Moreover its commentaries on classics, just can be read under the state that the lasting application of force of necessary user is reversed apart from the reading of pointer.Therefore will expend the unnecessary muscle power of user.

The utility model is at above-mentioned deficiency, a kind of electronic type torsional force wrench is proposed, it is with the effort handle and the tommy bar of spanner, substrate and survey part with pressure sensor is connected respectively, when between effort handle and tommy bar, having relative pressure, pressure sensor must measure force value, converts the torsion reading again to, shows output by display screen with numeral; Historical facts or anecdotes can accurately record the torsion reading with novel, and quite convenient in the operation.

Be provided with the pressure sensor of an electronic type between the tommy bar of its spanner of the utility model and the handle.

Above-mentioned electronic type torsional force wrench, it comprises:

Handle, inside are set to the hollow storage tank;

Effort handle is placed in the storage tank of handle, and is pivoted with one and a little is pivoted mutually with handle, and an end of effort handle is provided with the joint portion;

Tommy bar, the one end is a tool heads, and the other end combines with the joint portion of effort handle;

Pressure sensor, by substrate, survey part, converting unit and display list and constituted, substrate connects respectively with the survey part and is arranged on effort handle and the tommy bar; When between effort handle and tommy bar relative pressure being arranged, pressure sensor measures force value, and converts the torsion reading to by converting unit, shows output by display list with numeral again.

Above-mentioned electronic type torsional force wrench, the joint portion of its effort handle can be set to have two binding sites, and the linking portion of tommy bar is combined with two binding sites.

Above-mentioned electronic type torsional force wrench, its pressure sensor is provided with the cresset flashing circuit.

Above-mentioned electronic type torsional force wrench, its pressure sensor is provided with the speech utterance circuit.

Now the utility model is described in further detail in conjunction with the accompanying drawings:

Fig. 1 is traditional torque spanner user mode schematic diagram;

Fig. 2 is another traditional torque spanner stereogram;

Fig. 3 is a stereogram of the present utility model;

Fig. 4 is an internal structure schematic diagram of the present utility model.

Shown in accompanying drawing 3,4, it is made of handle 20, effort handle 30, tommy bar 40 and a pressure sensor 50; Wherein:

Handle 20 grips the application of force for the operator, and inside is set to hollow storage tank 21;

Effort handle 30, be placed in the storage tank 21 of handle 20, and with one be pivoted a little 31 with handle 20 combination that is pivoted mutually, make handle 20 be able to swing on effort handle 30 (for all directions strength that makes the operator impose on handle 20 is concentrated from 31 biographies that are pivoted a little to effort handle 30); One end of effort handle 30 is provided with joint portion 32, and joint portion 32 is provided with two binding sites 321;

This tommy bar 40, one end are Wrench head 41 (for example: collet head, spanner are first-class), and other end linking part 42 combines with the binding site 321 of the joint portion 32 of effort handle 30;

Pressure sensor 50, by substrate 51, survey part 52, converting unit and display screen 53 and constituted, substrate 51 combines with effort handle 30, surveys part 52 and tommy bar 40 be connected (vice versa); When effort handle 30 and 40 of tommy bars had relative pressure, pressure sensor 50 measured force value; Converting unit that pressure sensor 50 is set (can be the circuit conversion unit) and display list 53 with measured force value, convert the torsion reading to by converting unit, and export with numeral by display list 53; It should be noted that the utility model is to change as the numerical value detecting, so the degree of accuracy is quite high with the pressure between effort handle 30 and the tommy bar 40;

In actual use, the user can be directly from showing that form 3 read the torsion reading, record the torsion reading after, the user need not continue this reading data of the application of force and can keep to be shown in and show form 3; Then, can pass through circuit design, the user can preestablish torque value, when the spanner switching reaches preset torque value, this pressure sensor 50 except that display list shows reading, and can cresset flashing or the voice informing user reached preset torque value, so use quite convenient.

The utility model is by effort handle and tommy bar with spanner, substrate and survey part with pressure sensor is connected respectively, and when having relative pressure between effort handle and tommy bar, pressure sensor measures force value, and convert the torsion reading to through converting unit, show output by display list with numeral again.As seen, use of the present utility model can accurately record the torsion reading, and quite convenient in the operation.

Claims

1, a kind of electronic type torsional force wrench is characterized in that being provided with between the tommy bar (40) of spanner and the handle (14) pressure sensor (50) of an electronic type.

2, according to claim 1 described electronic type torsional force wrench, it is characterized in that it comprises:

Handle (20), inside are set to hollow storage tank (21);

Effort handle (30) is placed in the storage tank (21) of handle (20), and is pivoted with one and a little is pivoted mutually with handle (20), and an end of effort handle (30) is provided with joint portion (32);

Tommy bar (40), one end are tool heads (41), and the other end combines with the joint portion (321) of effort handle (30);

Pressure sensor (50), by substrate (51), survey part (52), converting unit and display list (53) and is constituted, substrate (51) connects respectively with survey part (52) and is arranged on effort handle (30) and the tommy bar (40); When between effort handle (30) and tommy bar (40) relative pressure being arranged, pressure sensor (50) measures force value, and converts the torsion reading to by converting unit, shows output by display list (53) with numeral again.

3, electronic type torsional force wrench according to claim 2 is characterized in that the joint portion (32) of described effort handle (30) can being set to have two binding sites (321), and the linking portion of tommy bar (40) is combined with two binding sites (321).

4, electronic type torsional force wrench according to claim 2 is characterized in that described pressure sensor (50) is provided with the cresset flashing circuit.

5, electronic type torsional force wrench according to claim 2 is characterized in that described pressure sensor (50) is provided with the speech utterance circuit.