CN203887775U

CN203887775U - Torque value adjustment positioning structure of torque wrench

Info

Publication number: CN203887775U
Application number: CN201420191341.7U
Authority: CN
Inventors: 赖李玉兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-18
Filing date: 2014-04-18
Publication date: 2014-10-22
Anticipated expiration: 2024-04-18

Abstract

Disclosed is a torque value adjustment positioning structure of a torque wrench. When a grip of the torque wrench rotates and is adjusted to a required torque value, the rotation positioning of a positioning ring is performed to enable a positioned part to be oppressed by the positioning ring to be clamped and positioned in a positioning groove of a front sleeve part so as to enable the grip not to rotate, the set torque value can be positioned and maintained relatively, and accordingly the excessive or insufficient application force during operation and wrenching can be avoided.

Description

The adjustment torque value location structure of torque spanner

Technical field

The utility model relates to a kind of adjustment torque value location structure of torque spanner, espespecially it can be located the torque value after adjusting clearly, when avoiding switching to force in torque spanner, cause the torque value after adjusted to produce change and cause the excessive torque spanner that causes of the application of force to damage, or application of force deficiency cause lock knot part to be screwed.

Background technology

The effect of torque spanner is to set torque value; when surpassing this setting torque value, will sound; or generation idle running; user can be known and know over default torque value; and no longer continue the application of force, use; energy protection lock knot part and torque spanner do not damage because the application of force is excessive relatively, and can really lock knot part be screwed.

And general torque spanner all can drive the bolt rotary of being located at outer handle inside for the control piece rotating with one mostly, again with the axial displacement in handle outside of the slide block that is screwed with screw rod, when slide block is during in different position, can impose compressing in various degree to spring, and then reach the effect of adjusting torque value size.But, because this common torque spanner is set in torque value after required size, and cannot effectively control piece be fixed, under the External Force Actings such as vibrations when torque value still can be used because of operation or careless rotation controling piece and change easily, so, all will cannot obtain maintenance because of torque value, allow user have no basis when pulling operation, and still have the application of force excessive, cause lock knot part and torque spanner to damage, or the application of force is not enough, cause the phenomenons such as lock knot part cannot be screwed really to produce.

Therefore; how to develop a kind of torque value of adjustment can being fixed, with protection lock knot part and torque spanner, because the application of force is excessive, do not damage, and can really lock knot part be screwed; can also not affect the normal use of torque spanner, be the improved problem of inventor institute wish place simultaneously.

Therefore the inventor thinks and the idea of creation, then with experience for many years, designed, through in many ways inquiring into and study sampling test, and repeatedly revise and improve, be to release the utility model.

Summary of the invention

Main purpose of the present utility model is to be: a kind of adjustment torque value location structure of torque spanner is provided, really lock knot part is screwed, allow the torque value setting can obtain maintenance.

For reaching above-mentioned purpose, the adjustment torque value location structure of a kind of torque spanner of the utility model, is characterized in that: include:

One handle, it is to be hollow form, and front outer is formed with a projecting ring section, this projecting ring section front end is extended with an extension, this extension has at least one engaging groove, these engaging groove two ends have respectively a location profile groove that runs through this extension inner peripheral surface, outer peripheral face, and this location profile groove wears for positioning piece, and this keeper supports a flexible member mutually with engaging between groove;

One locating ring, it has an outer ring surface and inner ring surface, and inner ring surface one ora terminalis of this locating ring is formed to a few groove of giving up the throne being arranged with, and the inner ring surface of this locating ring is just sheathed on the extension outer peripheral face of this handle;

One front external member, the outer wall side face at its back segment place has several being arranged with separately on this outer wall side face and along this axially extended detent, and be just sheathed on the inner peripheral surface of the extension of this handle, when this detent is subject to this locating ring compressing for this keeper with engage location.

The effect of contrast prior art:

(1) the utility model provides the adjustment torque value location structure of torque spanner, it is set in torque value after required size, can be effectively by locating ring rotational positioning, handle cannot be rotated again, relatively when pulling operation, just do not have because under external force vibrations or careless rotation the shortcoming that causes torque value to change again.

(2) the utility model provides the adjustment torque value location structure of turning round torque spanner, its handle can be fixed and not rotate, and allow the torque value setting can obtain maintenance, therefore can pull when operation user, provide a foundation accurately, relatively just excessive without the application of force, cause lock knot part and torque spanner to damage, or the application of force is not enough, causes the phenomenons such as lock knot part cannot be screwed really.

Accompanying drawing explanation

Fig. 1 is the three-dimensional combination figure that the utility model group is stood on torque spanner.

Fig. 2 is the three-dimensional exploded view that the utility model group is stood on torque spanner.

Fig. 3 is three-dimensional exploded view of the present utility model (one).

Fig. 4 is three-dimensional exploded view of the present utility model (two).

Fig. 5 is combination section of the present utility model (before locating ring rotation).

Fig. 6 is combination section of the present utility model (locating ring rotates rear).

Fig. 7 is another side combination section of the present utility model (before locating ring rotation).

Fig. 8 is another side combination section of the present utility model (locating ring rotates rear).

The specific embodiment

Please first consult Fig. 1, Fig. 2, one torque spanner, it consists predominantly of: a wrench body 10, one outer handle 20, one guiding mechanism 30, one handle 40, wherein, these wrench body 10 one end are ratchet drive mechanism 11, in order to socket lock knot part, this outer handle 20 is hollow form, wrench body 10 can be penetrated by the place ahead, and this guiding mechanism 30 is penetrated by rear and the transmission of joining in this outer handle 20 with this wrench body 10, these guiding mechanism 30 rear ends have a screw rod 31, vertical its in these screw rod 31 rears axially provided a driving hole 32, the axostylus axostyle 33 that driving hole 32 is fixed on this handle 40 for two ends wears, therefore, this handle 40 drives this axostylus axostyle 33 to rotate, and then this guiding mechanism 30 of transmission adjust torque value, yet, this is not the request emphasis of the application's case, therefore below will no longer add to repeat.

Please first by Fig. 2, Fig. 3 arranges in pairs or groups and sees it shown in Fig. 4～Fig. 6, a kind of adjustment torque value location structure of torque spanner, it includes: a handle 40, it is hollow form, and front outer is formed with a projecting ring section 41, these projecting ring section 41 sides have at least one locating piece 42, wherein, this projecting ring section 41 is extended with forward an extension 43 that is provided with torsion scale value 44, this extension 43 has at least one engaging groove 45, these engaging groove 45 two ends have respectively one and run through this extension 43 inner peripheral surfaces 431, the location profile groove 46 of outer peripheral face 432, this location profile groove 46 wears for positioning piece 47, this keeper 47 is to lower frame shape, and this keeper 47 supports a flexible member 48 mutually with engaging between groove 45, this flexible member 48 is spring, one locating ring 50, it has an outer ring surface 51 and inner ring surface 52, inner ring surface 52 1 ora terminalis of this locating ring 50 are formed to a few groove 53 of giving up the throne being arranged with, and these inner ring surface 52 another end edge form at least one stopper slot being arranged with 54, this locating piece 42 is just in the interior slippage of this stopper slot 54, to limit the rotational angle of this locating ring 50, in addition, the inner ring surface 52 of this locating ring 50 is just sheathed on extension 43 outer peripheral faces 432 of this handle 40, wherein, the outer ring surface 51 of this locating ring 50 is formed with several on-slip grooves 55 separately, one front external member 60, this front external member 60 wears for this outer handle 20, and these front external member 60 leading portion places have one first profile groove 61, and these front external member 60 middle sections have the annular protrusion 64 of a rearward oblique extension, this annular protrusion 64 has one second profile groove 65, and the outer wall side face 601 at these front external member 60 back segment places has several being arranged with separately on this outer wall side face 601 and along this axially extended detent 66, this detent 66 is just sheathed on the inner peripheral surface 432 of the extension 43 of this handle 40, therefore, the detent 66 of this front external member 60 supplies to be subject to these locating ring 50 compressings and wore these keeper 47 engaging location of this location profile groove 46, wherein, outer ring surface 51 2 sides of this locating ring 50 are just supported and are located between the end of this annular protrusion 64 and projecting ring section 41 1 sides of handle 40.

Above-mentionedly the relevant position of structure of the present utility model, feature and combination thereof is done to a detailed description, for making this novel object, feature and effect more distinguished, below hereby with regard to it, use situation and expection to reach effect, advantage explanation as rear:

Please refer to Fig. 2～Fig. 6, arrange in pairs or groups shown in Fig. 7, Fig. 8, when user utilizes this this guiding mechanism 30 of handle 40 transmissions of rotation and adjusts and set after needed torque value, then rotate this locating ring 50, make this keeper 47 be subject to the inner ring surface 52 rotation compressings of this locating ring 50 and exit gradually this groove 53 of giving up the throne, and the location profile groove 46 location that make these keeper 47 2 ends wear respectively these engaging groove 45 2 ends are sticked in the detent 66 of this front external member 60, make to adjust after torque value, this handle 40 can be fixed and have the effect of location torque value; In addition, when rotating this locating ring 50, make this locating piece 42 just by sliding onto this stopper slot 54 other ends in these stopper slot 54 one end, limit the rotational angle of this locating ring 50, to avoid user to produce the excessive problem of the anglec of rotation when rotating this locating ring 50.

Borrow the structure of above-mentioned specific embodiment, can obtain following benefit: it is set in (one) torque value after required size, can be effectively by locating ring rotational positioning, allow keeper be subject to this locating ring compressing and engage the detent that is positioned front external member, and allow this handle 40 be rotated again, it cannot be rotated again, relatively when pulling operation, just do not have because under external force vibrations or careless rotation the shortcoming that causes torque value to change again; (2) its this handle 40 can be fixed, and allow the torque value setting can obtain maintenance, therefore can pull when operation user, provide a foundation accurately, relatively just excessive without the application of force, cause lock knot part and torque spanner to damage, or the application of force is not enough, cause the phenomenons such as lock knot part cannot be screwed really.

In sum, the utility model has reached breakthrough structural design really, and there is improved summary of the invention, can reach again usability and the progressive in industry simultaneously, and this is novel does not see any publication, also have a novelty, when meeting the regulation of the relevant law of Patent Law, propose new patent application in accordance with the law.

Only the above, be only a preferred embodiment of the present utility model, when can not with the scope of this novel enforcement of restriction; The equalization of generally doing according to this novel claim changes and modifies, and all should still belong in the scope that this new patent contains.

Claims

1. an adjustment torque value location structure for torque spanner, is characterized in that: include:

2. the adjustment torque value location structure of torque spanner as claimed in claim 1, it is characterized in that: wherein, the projecting ring section side of this handle has at least one locating piece, and this locating ring inner ring surface another end edge forms at least one stopper slot being arranged with, this locating piece is slippage in this stopper slot just, limits the rotational angle of this locating ring.

3. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, the outer peripheral face of this extension front end is provided with torsion scale value.

4. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, this keeper is to be to lower frame shape.

5. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, this flexible member is spring.

6. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, the outer ring surface of this locating ring is formed with several on-slip grooves separately.

7. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, this front external member wears for an outer handle.

8. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, the detent of this front external member supplies to be subject to this locating ring compressing and wore this keeper engaging location of this location profile groove.

9. the adjustment torque value location structure of torque spanner as claimed in claim 1, is characterized in that: wherein, this front external member leading portion place has one first profile groove.

10. the adjustment torque value location structure of torque spanner as claimed in claim 1, it is characterized in that: wherein, this front external member middle section has the annular protrusion of a rearward oblique extension, and outer ring surface two sides of this locating ring are just supported and are located between the end of this annular protrusion and the projecting ring section of handle one side.

The adjustment torque value location structure of 11. torque spanneres as claimed in claim 10, is characterized in that: wherein, this annular protrusion has one second profile groove.