CN217046210U - Counter-force arm and torque wrench - Google Patents
Counter-force arm and torque wrench Download PDFInfo
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- CN217046210U CN217046210U CN202220695368.4U CN202220695368U CN217046210U CN 217046210 U CN217046210 U CN 217046210U CN 202220695368 U CN202220695368 U CN 202220695368U CN 217046210 U CN217046210 U CN 217046210U
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Abstract
The utility model discloses a counter-force arm and torque wrench, through setting up the main force arm of bending that includes first section of bending and second section of bending to all set up a plurality of first linkage units and the second linkage unit of arranging along length direction in two sections of bending, make the connecting piece and connect the pole and install to two sections of bending through two installation elements respectively. The distance between the two second connecting units and the bending position is set to be different, so that when the connecting rod is installed on the first bending section or the second bending section, the transverse distance between the connecting rod and the correspondingly installed connecting piece is different, and application scenes are increased. All set up on two sections of bending and have a plurality of first linkage units along length direction for the connecting piece can be connected to two different positions of the section of bending respectively, thereby the adjustable extension rod that corresponds the installation for the height between the connecting piece, but and the multistage adjustment, further increase the application scene, use the scene few with solving current counter-force arm, be difficult to satisfy the problem of actual demand.
Description
Technical Field
The utility model belongs to the technical field of torque wrench, especially, relate to a counter-force arm and torque wrench.
Background
An electric constant torque wrench is generally used in a place where a bolt (nut) is mounted and dismounted with a large torque ratio and where a torque accuracy requirement is high. The existing electric torque wrench usually controls a torque value by an intelligent controller according to the working current value change of a motor in the bolt tightening process, and when the torque value reaches a preset value, the motor stops working to realize the required torque value. The electric torque wrench mainly comprises a mechanical part consisting of a reduction gearbox, a reaction arm, a sleeve, an internal shaft, a gear and the like, an electromechanical part consisting of a machine body, a handle, a switch, a cable sheath, a driving motor and the like, and an electronic intelligent part consisting of an intelligent controller.
When the electric torque wrench works, the sleeve sleeves a bolt which needs to be loosened or tightened, the reaction force arm is supported on the adjacent bolt, the switch is pressed to drive the motor to rotate, the sleeve rotates clockwise or anticlockwise through the transmission of the mechanical part, and the loosening or tightening of the bolt is realized under the action of the reaction force arm and the supporting point.
When the whole machine leaves a factory, a conventional counter-force arm is arranged. However, the reaction arm often has a problem of insufficient length or too long length, or a situation that the abutting support cannot be realized due to the fact that the height of the tail end of the reaction arm is not matched with the adjacent bolt exists, and the application scenarios are few, and the practical use requirements of construction are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a counter-force arm and torque wrench to it is few to solve current counter-force arm application scene, is difficult to satisfy the problem of actual demand.
In order to solve the above problem, the technical scheme of the utility model is that:
the utility model discloses a counter-force arm, include:
the bending main force arm comprises a first bending section and a second bending section which are connected, and the joint of the first bending section and the second bending section is a bending position;
the first bending section is uniformly provided with a plurality of first connecting units along the length direction of the first bending section, and the first bending section is provided with a second connecting unit; the second bending section is uniformly distributed with a plurality of first connecting units along the length direction of the second bending section, and the second bending section is provided with a second connecting unit;
the first end of the connecting piece is matched and arranged on the first bending section or the second bending section through a first mounting unit and a first connecting unit, and the second end of the connecting piece is used for connecting an external torque wrench;
the connecting rod is installed on the first bending section or the second bending section in a matched mode through a second installation unit and the second connecting unit;
the connecting piece and the connecting rod are respectively arranged on the first bending section and the second bending section; and the distances between the two second connecting units and the bending position are different.
The utility model discloses a counter-force arm, the length of first section of bending with the length of the section of bending of second is different, and two the second linkage unit is located respectively first section of bending with the section of bending of second is kept away from one side of the position of bending.
The utility model discloses a counter-force arm, first section perpendicular to of bending the section of bending of second.
In the reaction arm of the present invention, the first connecting unit is two first screw holes, and the two first screw holes are respectively disposed on both sides of the first bending section or the second bending section in the length direction;
the first mounting unit is a first fastening screw corresponding to the two first screw holes;
and the first end of the connecting piece is provided with two first through holes for the first fastening screws to pass through.
In the reaction arm of the present invention, the second connecting unit is two second screw holes, and the two second screw holes are sequentially arranged along the length direction of the first bending section or the second bending section at intervals;
the second mounting unit is a second fastening screw corresponding to the two second screw holes;
and the connecting rod is provided with two second through holes for the second fastening screws to pass through.
The utility model discloses a counter-force arm, it is two sets of the second screw runs through the correspondence respectively first section of bending with the second section of bending.
In the reaction arm of the utility model, the cross sections of the first bending section and the second bending section in the length direction are the same;
the first end of the connecting piece is provided with a sleeve which is used for being sleeved and sliding on the first bending section or the second bending section.
The utility model discloses a counter-force arm, the second end of connecting piece is equipped with a collar, be equipped with the splined hole that is used for installing to outside torque wrench on the internal face of collar.
The connecting rod of the counter-force arm of the utility model is a special-shaped connecting rod which comprises a first connecting section, a horizontal bending section and a vertical section which are connected in sequence;
the first connecting section is installed on the first bending section or the second bending section in a matched mode through a second installation unit and the second connecting unit;
the vertical section is for abutting to an external adjacent bolt.
The utility model discloses a torque wrench, including above-mentioned arbitrary item the reaction arm of force.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
the utility model discloses an embodiment is through setting up the main force arm of bending including first section of bending and the section of bending of second to all set up a plurality of first linkage units and the second linkage unit of arranging along length direction in two sections of bending, make the connecting piece with connect the pole and install to two sections of bending through two installation units respectively. The distance between the two second connecting units and the bending position is set to be different, so that when the extension rod is installed on the first bending section or the second bending section, the transverse distance between the extension rod and the correspondingly installed connecting piece is different, namely, the whole length of the reaction arm is changed, and application scenes are increased. Simultaneously, all set up on two sections of bending and have a plurality of first linkage units along length direction for the connecting piece can be connected to two different positions of the section of bending respectively, thereby adjustable correspondence installation connect the pole for the connecting piece between the height, changed the whole height of the reaction arm promptly, and can multistage adjustment, further increase and use the scene, use the scene few in order to solve current reaction arm, be difficult to satisfy the problem of actual demand.
Drawings
Fig. 1 is a schematic view of a reaction arm of the present invention;
FIG. 2 is an exploded view of the reaction arm of the present invention;
FIG. 3 is another schematic view of a reaction arm of the present invention;
fig. 4 is another schematic view of the reaction arm of the present invention.
Description of the reference numerals: 1: a first bending section; 2: a second bending section; 3: a connecting member; 301: a sleeve; 302: mounting holes; 4: connecting rods; 401: a first connection section; 402: a horizontal bending section; 403: a vertical section; 5: a first screw hole; 6: a first fastening screw; 7: a second screw hole; 8: a second fastening screw; 9: a first through hole; 10: a second via.
Detailed Description
The reaction arm and the torque wrench according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Referring to fig. 1-4, in one embodiment, a reaction arm includes a bent moment arm, a connector 3, and a reach bar 4.
The bending main force arm comprises a first bending section 1 and a second bending section 2 which are connected, and the joint of the first bending section 1 and the second bending section 2 is a bending position. The first bending section 1 is uniformly provided with a plurality of first connecting units along the length direction, and the first bending section 1 is provided with second connecting units. The second bending section 2 is uniformly distributed with a plurality of first connecting units along the length direction, and the second bending section 2 is provided with second connecting units.
The first end of the connecting piece 3 is matched and installed on the first bending section 1 or the second bending section 2 through the first installation unit and the first connection unit, and the second end of the connecting piece 3 is used for being connected with an external torque wrench. The extension rod 4 is installed on the first bending section 1 or the second bending section 2 through the second installation unit and the second connection unit in a matching manner.
Wherein, connecting piece 3 and extension rod 4 install respectively in first section 1 and the second section 2 of bending, promptly both can not install simultaneously on first section 1 or the second section 2 of bending. And the distances between the two second connecting units and the bending position are different, and the distances between the connecting rod 4 arranged on the connecting rod and the bending position and the positions of the connecting pieces 3 are different due to different distances.
This embodiment is through setting up the main arm of force of bending including first section of bending 1 and the section of bending 2 of second to all set up a plurality of first linkage unit and the second linkage unit of arranging along length direction on two sections of bending, make connecting piece 3 and connect pole 4 to install to two sections of bending through two installation units respectively. The distance between the two second connecting units and the bending position is set to be different, so that when the connecting rod 4 is installed on the first bending section 1 or the second bending section 2, the transverse distance between the connecting rod 4 and the connecting piece 3 installed correspondingly is different, namely, the whole length of the reaction arm is changed, and application scenes are increased. Simultaneously, all set up on two sections of bending and have a plurality of first linkage units along length direction for connecting piece 3 can be connected to two different positions of the section of bending respectively, thereby adjustable the pole 4 that corresponds the installation for the height between connecting piece 3, changed the whole height of reaction arm promptly, but and the multistage adjustment, further increase and use the scene, use the scene few in order to solve current reaction arm, be difficult to satisfy the problem of actual demand.
The following further describes the specific structure of the reaction arm of this embodiment:
referring to fig. 1 and 3, in the present embodiment, the length of the first bending section 1 and the length of the second bending section 2 may be set to be different, and the two second connection units are respectively disposed at the sides of the first bending section 1 and the second bending section 2 away from the bending position. Taking the first bending section 1 as an example, the length of which is greater than that of the second bending section 2, when the connecting member 3 is connected to the first bending section 1 and the connecting rod 4 is installed on the second bending section 2, the distance between the connecting rod 4 and the bending position and the connecting member 3 is approximately equal to that of the second bending section 2; when the connecting piece 3 is connected to the second bending section 2 and the connecting rod 4 is arranged on the first bending section 1, the distance between the connecting rod 4 and the bending position and the connecting piece 3 is approximate to the length of the first bending section 1; since the length of the first bending section 1 is greater than that of the second bending section 2, the distance between the extension rod 4 and the torque wrench and the corresponding bolt to be screwed in the first case is smaller than that in the second case, so that the first case can be applied to a scene where the adjacent bolt is close, and the second case can be applied to a scene where the adjacent bolt is far.
In the present embodiment, the first bending section 1 may be disposed to be perpendicular to the second bending section 2.
In this embodiment, the first connecting unit may be two first screw holes 5, and the two first screw holes 5 are respectively arranged on two sides of the first bending section 1 or the second bending section 2 in the length direction, that is, two first screw holes 5 arranged at intervals are respectively arranged on two sides of the first bending section 1 and the second bending section 2 in the length direction. The first mounting unit is a first fastening screw 6 corresponding to the two first screw holes 5.
The first end of the connecting piece 3 is provided with two first through holes 9 for the first fastening screws 6 to pass through. Through the first fastening screw 6 passing through the corresponding first through hole 9 and being connected to the first screw hole 5 by screw thread, the relative position of the connecting piece 3 relative to the first bending section 1 or the second bending section 2 can be fixed.
Referring to fig. 1 and 2, at the same time, since the first screw holes 5 are arranged along the length direction of the two bending sections, different first screw holes 5 can be selected to obtain different height differences between the opposite bending sections. Taking the installation on the first bending section 1 as an example, the connecting member 3 can be arranged at the first screw hole 5 at one side far away from the second bending section 2, and the distance between the connecting member 3 and the second bending section 2 is similar to the length of the first bending section 1; and the connecting piece 3 also can be arranged at the first screw hole 5 near one side of the second bending section 2, and the distance between the connecting piece 3 and the second bending section 2 is greatly reduced.
In this embodiment, the second connection unit may be two second screw holes 7, and the two second screw holes 7 are sequentially disposed along the length direction of the first bending section 1 or the second bending section 2 at intervals. The second mounting unit is a second fastening screw 8 corresponding to the two second screw holes 7.
The extension rod 4 is provided with two second through holes 10 for passing the second fastening screws 8. The relative position of the extension rod 4 with respect to the first bending section 1 or the second bending section 2 can be fixed by the second fastening screw 8 passing through the corresponding second through hole 10 and being screwed into the second screw hole 7.
Referring to fig. 3 and 4, further, two sets of second screw holes 7 respectively penetrate through the corresponding first bending section 1 and the second bending section 2. The second screw hole 7 is arranged to penetrate through, and the extension rod 4 can be arranged on the upper surface or the lower surface of the first bending section 1 by taking the installation on the first bending section 1 as an example, the extension rod 4 is arranged on the upper surface and forms a height difference relative to the installation on the lower surface, and the height difference is the sum of the thickness of the first bending section 1 and the thickness of the extension rod 4, so that the height change range of the extension rod 4 relative to the connecting piece 3 is further enlarged, and the extension rod is further adapted to more application scenes.
In the present embodiment, the first and second bending sections 1 and 2 have the same cross section in the length direction thereof. The cross-sections are configured to be the same for facilitating the connection of the first connecting member 3, for example, a sleeve 301 may be provided at the first end of the connecting member 3 for being sleeved and slid on the first bending section 1 or the second bending section 2, i.e., the sleeve 301 may be adapted to the first bending section 1 and the second bending section 2 at the same time.
Further, a mounting ring 302 may be disposed at the second end of the connecting member 3, and a spline hole for mounting to an external torque wrench is disposed on an inner wall surface of the mounting ring 302, and is connected to the external torque wrench through a spline to transmit torque.
In the present embodiment, the extension bar 4 is a special-shaped extension bar 4, and the special-shaped extension bar 4 includes a first connection section 401, a horizontal bending section 402, and a vertical section 403, which are connected in sequence. The first connecting section 401 is mounted on the first bending section 1 or the second bending section 2 through the second fastening bolt and the second screw hole 7 in a matching manner. A first end of the horizontal bending section 402 is connected to the first connecting section 401, and a second end of the horizontal bending section 402 extends out of the corresponding bending section. The first end of the vertical section 403 is connected to the second end of the horizontal bending section 402, and the second end of the vertical section 403 can extend out of the lower surface of the corresponding bending section, so as to be used for abutting against the external adjacent bolt.
Example two
The present embodiment provides a torque wrench, which includes the reaction arm in the first embodiment. Through setting up the main arm of force of bending including first section 1 and the second section 2 of bending to all set up a plurality of first linkage unit and the second linkage unit of arranging along length direction on two sections of bending, make connecting piece 3 and connect pole 4 to install to two sections of bending through two installation units respectively. The distance between the two second connecting units and the bending position is set to be different, so that when the connecting rod 4 is installed on the first bending section 1 or the second bending section 2, the transverse distance between the connecting rod 4 and the connecting piece 3 installed correspondingly is different, namely, the whole length of the reaction arm is changed, and application scenes are increased. Simultaneously, all set up on two sections of bending and have a plurality of first linkage units along length direction for connecting piece 3 can be connected to two different positions of the section of bending respectively, thereby adjustable extension rod 4 that corresponds the installation for the height between connecting piece 3, changed the whole height of reaction arm promptly, but and the multistage adjustment, further increase torque wrench's application scene, it is few in order to solve current torque wrench application scene, is difficult to satisfy the problem of actual demand.
Further, the torque wrench of the present embodiment may be an electric torque wrench.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (10)
1. A reaction arm, comprising:
the bending main force arm comprises a first bending section and a second bending section which are connected, and the joint of the first bending section and the second bending section is a bending position;
the first bending section is uniformly provided with a plurality of first connecting units along the length direction of the first bending section, and the first bending section is provided with a second connecting unit; the second bending section is uniformly distributed with a plurality of first connecting units along the length direction of the second bending section, and the second bending section is provided with a second connecting unit;
the first end of the connecting piece is matched and arranged on the first bending section or the second bending section through a first mounting unit and a first connecting unit, and the second end of the connecting piece is used for connecting an external torque wrench;
the connecting rod is installed on the first bending section or the second bending section in a matched mode through a second installation unit and the second connecting unit;
the connecting piece and the connecting rod are respectively arranged on the first bending section and the second bending section; and the distances between the two second connecting units and the bending position are different.
2. The reaction arm as claimed in claim 1, wherein the first bent section has a length different from that of the second bent section, and the two second connecting means are provided on the sides of the first bent section and the second bent section away from the bending position, respectively.
3. The reaction arm of claim 1 wherein the first bent segment is perpendicular to the second bent segment.
4. The reaction arm as claimed in claim 1, wherein the first connecting means is two first screw holes, and the two first screw holes are respectively disposed on both sides in the longitudinal direction of the first bent section or the second bent section;
the first mounting unit is a first fastening screw corresponding to the two first screw holes;
and the first end of the connecting piece is provided with two first through holes for the first fastening screws to pass through.
5. The reaction arm of claim 1 wherein the second connecting means is two second screw holes, the two second screw holes being sequentially spaced apart along the length of the first bent section or the second bent section;
the second mounting unit is a second fastening screw corresponding to the two second screw holes;
and the connecting rod is provided with two second through holes for the second fastening screws to pass through.
6. The reaction arm of claim 5 wherein two sets of said second screw holes extend through corresponding ones of said first and second bent sections.
7. The reaction arm of claim 1 wherein the first and second bent segments are of the same cross-section along their length;
the first end of the connecting piece is provided with a sleeve which is used for being sleeved and sliding on the first bending section or the second bending section.
8. The reaction arm of claim 1 wherein the second end of the connector member is provided with a mounting ring having a splined opening on an inner wall surface for mounting to an external torque wrench.
9. The reaction arm as in claim 1 wherein the extension rod is a profile extension rod comprising a first connecting section, a horizontal curved section and a vertical section connected in series;
the first connecting section is installed on the first bending section or the second bending section in a matched mode through a second installation unit and the second connecting unit;
the vertical section is for abutting to an external adjacent bolt.
10. A torque wrench comprising a reaction arm according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220695368.4U CN217046210U (en) | 2022-03-29 | 2022-03-29 | Counter-force arm and torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220695368.4U CN217046210U (en) | 2022-03-29 | 2022-03-29 | Counter-force arm and torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217046210U true CN217046210U (en) | 2022-07-26 |
Family
ID=82467848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220695368.4U Active CN217046210U (en) | 2022-03-29 | 2022-03-29 | Counter-force arm and torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217046210U (en) |
-
2022
- 2022-03-29 CN CN202220695368.4U patent/CN217046210U/en active Active
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