CN201235520Y

CN201235520Y - Bolt locking gasket of torque wrench

Info

Publication number: CN201235520Y
Application number: CNU2008201194150U
Authority: CN
Inventors: 林添龙
Original assignee: Torque Tech Precision Co Ltd
Current assignee: Torque Tech Precision Co Ltd
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-05-13
Anticipated expiration: 2018-07-30

Abstract

The utility model discloses a torque wrench bolt locking gasket, which is used for being assembled with a torque setting device, the torque setting device is sleeved in the body of the torque wrench by a group of connecting rods, the tail end of the group of connecting rods is provided with an inserting seat for the body to be sleeved, the outer ring surface of the group of connecting rods is sleeved with a torque adjusting rod, the tail end of the torque adjusting rod is internally provided with a fixed seat, an adjusting bolt is arranged in the torque adjusting rod and is screwed into the inserting seat and the rear end of the fixed seat, the tail end of the adjusting bolt is pressed and fixed with a check nut, the periphery of the rear end ring of the adjusting bolt is axially concavely provided with a concave cutting groove, the fixed seat is concavely provided with a fixed groove corresponding to the end surface of the check nut, a locking gasket is clamped and fixed in the fixed groove, the inner edge of the locking gasket is provided with a convex column for clamping and limiting the adjusting bolt corresponding to the concave cutting groove, the fixed seat and the adjusting, so that the action between the adjusting bolt and the torque adjusting rod is reliable and is not easy to loosen.

Description

Torque spanner bolt lock washer

Technical field

The utility model relates to a kind of bolt lock washer that is used for torque spanner.

Background technology

See also shown in Figure 1, it is a kind of cutaway view of bolt locking mechanism of existing torque spanner, this torque spanner 100 is provided with a torsion setting device 10, for adjusting its torque value, this torsion setting device 10 comprises a connecting rod 11, be used for sheathed the whole body portion 101 of going into this torque spanner 100, making one in this body portion 101 and this connecting rod 11 adjust one of bolt 12 front ends compresses 13 and offsets, and this connecting rod 11 rear end outer ring surfaces and be arranged with a torsion adjusting lever 14, these torsion adjusting lever 14 rear end outer ring surfaces also are installed with a handle 15, these torsion adjusting lever 14 inner wall at end faces also are equipped with a plurality of engaging tooths 141, to be installed with a holder 16, these holder 16 outer ring surfaces have tooth portion 161 to cooperate deadlock in these a plurality of engaging tooths 141, these holder 16 outer ring surfaces and torsion adjusting lever 14 are fixed, these torsion adjusting lever 14 rear ends before engaging tooth 141 to should holder 16 front end faces and be provided with a stop section 142, in this connecting rod 11 is terminal and be provided with one and insert seat 17, when adjusting 12 groups on bolt and establishing, be to be screwed into to this holder 16 by this insertion seat 17, then, be screwed into a jam nut 18 in holder 16 ends again and compel solid this holder 16, and these connecting rod 11 relative these insertion seat 17 two side ends have also fastened a steady pin 171 respectively, this insertion seat 17 is positioned in this connecting rod 11, and by this this holder 16 of jam nut 18 packings, this adjustment bolt 12 can move by the reciprocal spiral shell of generation when making adjustment, when adjusting the torque value of this torque spanner 100, the user rotates this handle 15, this torsion adjusting lever 14 can together rotate with it, these holder 16 location spiral shells of interlock change this adjustment bolt 12, at this moment, this adjustment bolt 12 can change the position of these body portions 101 of contact and the effect that has a torsion to adjust, and then reaches the purposes of torsion setting.

But, the bolt locking mechanism of above-mentioned torque spanner commonly used is when assembling, this holder 16 is can be when torsion adjusting lever 14 rotates by the packing of this jam nut 18, back and forth spiral shell moves this adjustment bolt 12, but separate if can produce with holder 16 after the improper or long-time use of assembling, cause this holder 16 of effectively packing, when being rotated, this torsion adjusting lever 14 only have this holder 16 to dally on this adjustment bolt 12, can't adjust torque value, must re-assembly and set this bolt locking mechanism, in sum the real necessity that remains to be improved of the bolt locking mechanism of existing torque spanner.

The utility model content

In view of this, main purpose of the present utility model is to provide a kind of torque spanner bolt lock washer, moves with this holder drive adjustment bolt of effective packing and its generation spiral shell, and can disassemble fast and assemble.

The utility model provides a kind of torque spanner bolt lock washer, this torque spanner is used for being connected with group with a torsion setting device, this torsion setting device comprises a connecting rod, be used for sheathed the whole body portion of going into this torque spanner, this connecting rod end sets firmly one and inserts seat, this connecting rod outer ring surface also is arranged with a torsion adjusting lever, be provided with a holder in this torsion adjusting lever end, one adjusts bolt is set in this torsion adjusting lever, after this adjustment bolt system is screwed into this insertion seat and this holder rear end, end is compeled a solid jam nut again, wherein, the utility model principal character is for being provided with the recessed grooving of predetermined length in this at least one side in adjustment bolt rear end, in between this holder and this jam nut and be provided with a lock washer, this holder is near this jam nut end face and be concaved with a holddown groove, the interior peripheral wall of this holddown groove also is provided with the recessed teeth of many rings, its outer peripheral face of this lock washer cooperates the recessed tooth of these a plurality of rings to be provided with many ring double wedges, to be mounted in this holddown groove, this lock washer inner edge relatively this recessed grooving convexes with a relative limit and is slidedly arranged on projection on this recessed grooving, and this lock washer also compels to be fixed on this holder by this jam nut.

By above-mentioned feature, this lock washer locking positioning is on this holder, its projection relative limit is slidedly arranged on this recessed grooving, when adjusting torque value, move to produce spiral shell by this adjustment bolt of the spacing drive of this projection, prevent that holder from dallying on this adjustment bolt, and make between this adjustment bolt and this torsion adjusting lever action really and be difficult for getting loose, and make things convenient for its assembly and disassembly by this lock washer.

Description of drawings

Fig. 1 is a kind of cutaway view of bolt locking mechanism of existing torque spanner.

Fig. 2 is an exploded view of the present utility model.

Fig. 3 is the bolt locking mechanism partial sectional view of the torsion setting device rear end part of the utility model preferred embodiment.

The specific embodiment

See also Fig. 2 to shown in Figure 3, be the torsion setting device rear end part exploded view of a kind of torque spanner bolt of the utility model lock washer and the assembled sectional view of torsion setting device, the operating principle of torque spanner bolt locking mechanism of the present utility model and torsion setting device is with aforementioned existing identical, its label shows part slightly and quotes Fig. 1, the torsion adjusting lever 14 inner wall at end faces of this torsion setting device 10 also are equipped with in a plurality of engaging tooths 141, this adjustment bolt 12 is located in this torsion adjusting lever 14, front end is to replace this body portion 101, rear end and spiral shell are provided with this holder 16, these holder 16 outer ring surfaces have tooth portion 161 and are packed in this a plurality of engaging tooths 141 to cooperate deadlock, and block is in this stop section 142, and spiral shell is provided with this insertion seat 17 and this jam nut 18 respectively in these adjustment bolt 12 relative these both sides, holder 16 front and back, and this connecting rod 11 is with these insertion seat 17 two side ends and utilize this steady pin 171 fixing respectively, make this insertion seat 17 be positioned this connecting rod 11 ends, this this holder 16 1 of jam nut 18 packings is distolateral, and the bolt lock washer of this torque spanner 100 comprises:

This adjusts bolt 12, and relative two side ends is axially arranged with a recessed grooving 121 respectively in the rear end, the parallel respectively central shaft that should adjust bolt 12 of these a plurality of recessed groovings 121, and its length is slightly larger than the interior haul distance of torsion adjusted value scope of this torsion setting device 10.

This holder 16 is to be concaved with a holddown groove 162 in relative these jam nut 18 side end faces, and peripheral walls also are provided with the recessed teeth 163 of many rings in this holddown groove 162.

One lock washer 19, be sheathed on the adjustment bolt 12 of 18 of this holder 16 and this jam nuts, axially provide in it for being sheathed on the perforation of one on this adjustment bolt 12 192, and cooperate recessed tooth 163 quantity of this a plurality of rings to be provided with the double wedges 191 that encircle in outer peripheral face more, be fixedly arranged on relative engagement in the holddown groove 162 of this holder 16, and, the spacing projection 193 that is slidedly arranged on this recessed grooving 121 when relative these a plurality of recessed groovings 121 of these 192 inner peripheral surfaces of boring a hole radially convex with a confession torsion adjustment, these a plurality of projections 193 are a rectangular block.

By for further understanding the effect that the utility model structural feature, application technology means and institute's expection are reached, now the utility model occupation mode is narrated, believing be able to have more deep and concrete understanding to the utility model therefrom, as described below:

Still see also Fig. 2 to shown in Figure 3, in the time will assembling the bolt locking mechanism of this torque spanner 100, at first, fix this insertion seat 17 earlier, to adjust bolt 12 is screwed into to this holder 16 by inserting seat 17, then, be screwed into this jam nut 18 in holder 16 ends again and compel solid this holder 16, and these connecting rod 11 relative these insertion seat 17 two side ends have also fastened a steady pin 171 respectively, this insertion seat 17 is fixed with this connecting rod 11, and spiral shell is located on this adjustment bolt 12 relatively, these adjustment bolt 12 front ends are replaced this body portion 101, after adjusting preset torque value, again this lock washer 19 is sheathed on this adjustment bolt 12, by 193 involutory being slidedly arranged on this adjustment bolt 12 of the projection on it, make its involutory being fastened in this holddown groove 162, at last, lock this jam nut 18 in relative these lock washer 19 end face packings again, promptly finish assembling.

When adjusting the torque value of this torque spanner 100, rotate this handle 15, this torsion adjusting lever 14 can rotate in this connecting rod 11 outer peripheral faces synchronously simultaneously, and be positioned by this jam nut 18 in the holddown groove 162 of this holder 16, when making these holder 16 inner peripheral surface spiral shells move on this adjustment bolt 12, it is moving to adjust bolt 12 generation spiral shells by the projection 193 embedding systems of this lock washer 19 simultaneously, and by this holder 16, insert the relation that screws togather of 18 of seat 17 and jam nuts, making this adjustment bolt 12 be subjected to the embedding system of lock washer 19 to produce reciprocal spiral shell moves, make this adjustment bolt 12 pass the body portion 101 of this torque spanner 100, and torque value adjustment action is arranged.

Below, again its attainable expection effect of feature of the present utility model is presented below:

1, the utility model is matched with in the holddown groove of this holder by this lock washer locking, when adjusting torque value, and by the relation that screws togather between this holder, insertion seat and jam nut, making this adjustment bolt be subjected to the projection embedding system of lock washer effectively to produce spiral shell moves, these a plurality of projections and relative limit are slidedly arranged on these a plurality of recessed groovings, make this adjustment bolt pass the body portion of this torque spanner, prevent that holder from dallying on this adjustment bolt, and make between this adjustment bolt and this torsion adjusting lever action really and be difficult for getting loose, to make things convenient for the torsion adjustment.

2, its attainable expection effect of another feature of the present utility model is for to be sheathed on this adjustment bolt by this lock washer, be slidedly arranged on this adjustment bolt by the projection on it is involutory, and proofread and correct the recessed tooth of ring in the holddown groove of this holder to should the ring double wedge of lock washer by rotating this handle, make its involutory being fixedly arranged in this holddown groove, and by the quantity of the recessed tooth of these a plurality of rings with the ring double wedge, its convenient correction is assembled, lock this jam nut in relative this lock washer end face packing again, promptly finish assembling.

In sum, the utility model has its splendid progressive practicality in fact in like product, simultaneously all over looking into domestic and international technical data about this class formation, also finding no identical construction in the document exists formerly, being to have possessed novel patent requirement so that, the utility model is real, files an application in the whence in accordance with the law.

But the above person only is of the present utility model one preferable possible embodiments, changes so use the equivalent structure that the utility model specification and claim scope do such as, ought to be included in the protection domain of the present utility model.

Claims

1, a kind of torque spanner bolt lock washer, this torque spanner is used for being connected with group with a torsion setting device, this torsion setting device comprises a connecting rod, this connecting rod end sets firmly one and inserts seat, this connecting rod is used for sheathed the whole body portion of going into this torque spanner, this connecting rod outer ring surface also is arranged with a torsion adjusting lever, one adjusts bolt is set in this connecting rod, front end is replaced this body portion, rear end and spiral shell are provided with a holder, and this holder is fixedly arranged in this torsion adjusting lever, and are bolted with a jam nut in relative this holder rear side of this adjustment bolt, it is characterized in that this torque spanner bolt lock washer comprises:

This adjusts bolt, is arranged with at least one recessed grooving end ring week vertically in the back;

This holder is concaved with a holddown groove in relative this jam nut end face, and peripheral wall also is provided with the recessed teeth of many rings in this holddown groove;

One lock washer is sheathed between this holder and this jam nut, and cooperates the recessed tooth of these a plurality of rings to be provided with many ring double wedges in outer peripheral face, in the holddown groove that is fastened in this holder relatively, and this lock washer inner edge this recessed grooving relatively convexes with a projection, for being slidedly arranged on this recessed grooving.

2, torque spanner bolt lock washer according to claim 1, it is characterized in that, this torsion adjusting lever rear end internal face also is equipped with a plurality of engaging tooths, and this torsion adjusting lever is provided with a stop section in the engaging tooth front end, this holder periphery anchor ring is established tooth portion, and this tooth portion is fixedly arranged on the stop section of this torsion adjusting lever.

3, torque spanner bolt lock washer according to claim 1 is characterized in that, it is affixed with steady pin and this connecting rod that this inserts the seat both sides.