CN210550728U

CN210550728U - Novel fixed-torque wrench

Info

Publication number: CN210550728U
Application number: CN201920735690.3U
Authority: CN
Inventors: 卢长亮; 戴京涛; 姚东; 刘健; 何嘉诚
Original assignee: Qingdao Campus of Naval Aviation University of PLA
Current assignee: Qingdao Campus of Naval Aviation University of PLA
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-05-19
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a novel set square spanner, including last wrench handle, well wrench handle and lower wrench handle, the left end of going up wrench handle, well wrench handle and lower wrench handle all runs through and is equipped with first mounting hole, the inside activity of first mounting hole is provided with first set screw, the left end of going up wrench handle and lower wrench handle all runs through and is equipped with the second mounting hole, the inside activity of second mounting hole is provided with second set screw. The utility model discloses a set up arc wall, first steel ball, expanding spring and second steel ball for expanding spring resets and promotes first steel ball and arc wall joint, thereby realize torque control, still through setting up screw hole, threaded rod, regulation awl and knob piece, it drives the threaded rod rotation to rotate the knob piece, the threaded rod drives the regulation awl downstream at the spacing of screw hole, make the regulation awl extrude the regulation to the second steel ball, thereby make the moment of torsion can carry out the infinitely variable control, excellent in use effect.

Description

Novel fixed-torque wrench

Technical Field

The utility model relates to a spanner technical field specifically is a novel decide square spanner.

Background

The wrench is one of important tools for maintenance and production, and has the advantages of high strength, long service life, stable mechanical performance, no bending, deformation, no crack and the like at the stressed part. As nuts have become the most important fasteners in machinery, the role of wrenches is becoming increasingly important, and the variety of wrenches, such as torque wrenches, ratchet wrenches, adjustable wrenches, etc., is increasing. Torque wrenches are generally classified into three categories: manual torque wrenches, pneumatic torque wrenches and electric torque wrenches. The fixed-torque wrench is widely used for an assembly line with strict requirements on a tightening process, so that the torque values of all fasteners of a product are consistent, and the quality of the produced product is guaranteed;

the conventional apparatus has the following disadvantages:

at present, most of existing fixed-torque wrenches cannot perform stepless regulation on torque, so that the fixed-torque wrench is poor in using effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel decide square spanner to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel set-torque wrench, includes spanner handle, well spanner handle and spanner handle down, the left end of going up spanner handle, well spanner handle and spanner handle down all runs through and is equipped with first mounting hole, the inside activity of first mounting hole is provided with first set screw, the left end of going up spanner handle and spanner handle down all runs through and is equipped with the second mounting hole, the inside activity of second mounting hole is provided with second set screw, the surface activity of second set screw bottom is provided with the outer loop, the middle part of outer loop is provided with set-torque mechanism, the left end of going up spanner handle runs through and is equipped with the screw hole, the inner wall activity of screw hole is provided with the threaded rod, the surface of threaded rod is provided with adjustment mechanism.

Preferably, go up wrench handle, well wrench handle and lower wrench handle from last to lapping each other down, the middle part of going up wrench handle, well wrench handle and lower wrench handle all runs through and is equipped with the connecting hole, the inside and the surperficial threaded connection of connecting screw of connecting hole.

Preferably, the moment mechanism includes the inner ring, the inner ring activity sets up the middle part at the outer loop, the arc wall has been seted up at the middle part of outer loop inner wall, the inside activity of arc wall is provided with first steel ball, the middle part of inner ring is run through and is equipped with the intercommunicating pore, one side that the arc wall was kept away from to first steel ball extends to the inside of intercommunicating pore and fixed being provided with expanding spring, the fixed second steel ball that is provided with of one end that first steel ball was kept away from to expanding spring, the middle part of inner ring upper surface is run through and is equipped with the regulation hole, the second steel ball extends to the inside of regulation hole, the inner ring lower surface is provided with spanner socket.

Preferably, the number of the arc-shaped grooves and the number of the communicating holes are four, the four communicating holes are respectively and uniformly distributed in the middle of the inner ring at equal intervals, the size of the first steel ball is the same as that of the second steel ball, and the surface of the first steel ball is attached to the inner wall of the arc-shaped groove.

Preferably, adjustment mechanism is including adjusting the awl, adjust the fixed bottom that sets up at the threaded rod of awl, the left end of pulling the handle down runs through and is equipped with the movable orifices, the bottom of threaded rod extends to the inside of movable orifices, the fixed running gear that is provided with in top of threaded rod, running gear's last fixed surface is provided with the knob piece, it is provided with indicating mechanism to go up between pulling the upper surface of handle and the running gear.

Preferably, the indicating mechanism comprises a fixed table, the fixed table is fixedly arranged on the surface of the top end of the first fixing screw, an indicating disc is movably arranged on the upper surface of the fixed table, and the gear teeth of the outer wall of the circumferential side of the indicating disc are meshed with the gear teeth of the outer wall of the circumferential side of the rotating gear.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a through setting up arc wall, first steel ball, expanding spring and second steel ball, make expanding spring reset and stretch and promote first steel ball and arc wall joint, thereby realize torque control, still through setting up screw hole, threaded rod, adjusting cone and knob piece, rotate knob piece and drive the threaded rod and rotate, the threaded rod drives the adjusting cone and moves downwards under the spacing of screw hole, make the adjusting cone carry out extrusion regulation to the second steel ball, thereby make the moment of torsion can carry out stepless regulation, the result of use is better;

2. the utility model discloses a set up rotating gear, fixed station and dial for the knob piece can drive rotating gear and rotate, and rotating gear drives the dial rotation, and the person of facilitating the use observes the moment of torsion size, still through setting up spanner socket head, has realized the bolt pretension of the various shapes of convenient and fast's various sizes of adaptation.

Drawings

FIG. 1 is a top view of the overall structure of a novel constant-torque wrench of the present invention;

fig. 2 is a bottom view of the overall structure of the novel fixed-torque wrench of the present invention;

FIG. 3 is a front sectional view of a part of the structure of the novel constant-torque wrench;

FIG. 4 is a top sectional view of the connection between the outer ring structure and the inner ring structure of the novel constant-torque wrench of the present invention;

fig. 5 is a top view of the upper wrench handle structure of the novel constant-torque wrench of the present invention;

FIG. 6 is a top view of a middle wrench handle structure of the novel constant-torque wrench of the present invention;

fig. 7 is a top view of a lower wrench handle structure of the novel fixed-torque wrench of the present invention.

In the figure: 1. an upper wrench handle; 2. a middle wrench handle; 3. a lower wrench handle; 4. a first mounting hole; 5. a first set screw; 6. a second mounting hole; 7. a second set screw; 8. an outer ring; 9. an inner ring; 10. an arc-shaped slot; 11. a first steel ball; 12. a communicating hole; 13. a tension spring; 14. a second steel ball; 15. an adjustment hole; 16. a wrench socket head; 17. a threaded hole; 18. a threaded rod; 19. a movable hole; 20. an adjusting cone; 21. a rotating gear; 22. a knob block; 23. a fixed table; 24. an indicator panel; 25. connecting holes; 26. and connecting screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a novel moment setting spanner, including last wrench handle 1, well wrench handle 2 and lower wrench handle 3, go up wrench handle 1, well wrench handle 2 all runs through with the left end of wrench handle 3 down and is equipped with first mounting hole 4, the inside threaded connection of first mounting hole 4 has first set screw 5, it all runs through with the left end of wrench handle 3 down and is equipped with second mounting hole 6 to go up wrench handle 1, the inside threaded connection of second mounting hole 6 has second set screw 7, the surface thread in second set screw 7 bottom has cup jointed outer loop 8, the middle part of outer loop 8 is provided with moment setting mechanism, the left end of going up wrench handle 1 runs through and is equipped with screw hole 17, the inner wall threaded connection of screw hole 17 has threaded rod 18, the surface of threaded rod 18 is provided with adjustment mechanism.

Go up wrench handle 1, well wrench handle 2 and lower wrench handle 3 from last to lapping each other down, go up wrench handle 1, well wrench handle 2 and lower wrench handle 3's middle part and all run through and be equipped with connecting hole 25, the inside of connecting hole 25 and the surface threaded connection of connecting screw 26.

Decide square mechanism and include inner ring 9, inner ring 9 activity is pegged graft at the middle part of outer loop 8, arc wall 10 has been seted up at the middle part of outer loop 8 inner wall, the inside swing joint of arc wall 10 has first steel ball 11, inner ring 9's middle part is run through and is equipped with intercommunicating pore 12, one side that arc wall 10 was kept away from to first steel ball 11 extends to the inside and the fixedly connected with expanding spring 13 of intercommunicating pore 12, expanding spring 13 keeps away from the one end fixedly connected with second steel ball 14 of first steel ball 11, the middle part of inner ring 9 upper surface is run through and is equipped with regulation hole 15, second steel ball 14 extends to the inside of regulation hole 15, there is spanner socket head 16 lower surface of inner ring 9.

The number of the arc-shaped grooves 10 and the number of the communicating holes 12 are four, the four communicating holes 12 are respectively and evenly distributed in the middle of the inner ring 9 at equal intervals, the size of the first steel ball 11 is the same as that of the second steel ball 14, and the surface of the first steel ball 11 is attached to the inner wall of the arc-shaped groove 10.

Adjustment mechanism is including adjusting awl 20, adjusts awl 20 fixed mounting in the bottom of threaded rod 18, and the left end of lower wrench handle 3 runs through and is equipped with movable hole 19, and the bottom of threaded rod 18 extends to the inside of movable hole 19, and the top fixedly connected with running gear 21 of threaded rod 18, and the last fixed surface of running gear 21 installs knob piece 22, goes up and is provided with indicating mechanism between wrench handle 1's the upper surface and the running gear 21.

Indicating mechanism includes fixed station 23, and the fixed station 23 screw thread cup joints the surface on first set screw 5 top, and the upper surface of fixed station 23 rotates and is connected with indicator panel 24, and the teeth of a cogwheel of the outer wall of indicator panel 24 circumference side meshes with the teeth of a cogwheel of the outer wall of rotating gear 21 circumference side mutually.

The working principle is as follows: the utility model discloses when using, when needs adjust the spanner moment of torsion, rotate knob piece 22, knob piece 22 drives running gear 21 and rotates, running gear 21 drives threaded rod 18 and rotates, threaded rod 18 is under the spacing of screw hole 17, threaded rod 18 rotates while the downstream, threaded rod 18 drives regulation awl 20 downstream, adjust awl 20 extrusion second steel ball 14, second steel ball 14 compression expanding spring 13, expanding spring 13 resets and stretches to drive first steel ball 11 and carry out the effect in to arc groove 10, the increase moment of torsion, running gear 21 can drive the rotation of instruction disk 24 simultaneously, the user of service can know the size of moment of torsion through the rotation of instruction disk 24, utilize spanner socket head 16, and convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel fixed-torque wrench, includes spanner handle (1), well spanner handle (2) and lower spanner handle (3), its characterized in that: go up the left end of spanner handle (1), well spanner handle (2) and lower spanner handle (3) and all run through and be equipped with first mounting hole (4), the inside activity of first mounting hole (4) is provided with first set screw (5), the left end of going up spanner handle (1) and lower spanner handle (3) all runs through and is equipped with second mounting hole (6), the inside activity of second mounting hole (6) is provided with second set screw (7), the surface activity of second set screw (7) bottom is provided with outer ring (8), the middle part of outer ring (8) is provided with the set square mechanism, the left end of going up spanner handle (1) runs through and is equipped with screw hole (17), the inner wall activity of screw hole (17) is provided with threaded rod (18), the surface of threaded rod (18) is provided with adjustment mechanism.

2. The novel fixed-torque wrench as claimed in claim 1, wherein: go up wrench handle (1), well wrench handle (2) and lower wrench handle (3) from last to lapping each other down, the middle part of going up wrench handle (1), well wrench handle (2) and lower wrench handle (3) all runs through and is equipped with connecting hole (25), the inside of connecting hole (25) and the surface threaded connection of connecting screw (26).

3. The novel fixed-torque wrench as claimed in claim 1, wherein: the moment fixing mechanism comprises an inner ring (9), the inner ring (9) is movably arranged in the middle of the outer ring (8), an arc-shaped groove (10) is arranged in the middle of the inner wall of the outer ring (8), a first steel ball (11) is movably arranged in the arc-shaped groove (10), a communicating hole (12) is arranged in the middle of the inner ring (9) in a penetrating way, one side of the first steel ball (11) far away from the arc-shaped groove (10) extends into the communicating hole (12) and is fixedly provided with a telescopic spring (13), a second steel ball (14) is fixedly arranged at one end of the extension spring (13) far away from the first steel ball (11), an adjusting hole (15) penetrates through the middle part of the upper surface of the inner ring (9), the second steel ball (14) extends to the inside of the adjusting hole (15), the lower surface of the inner ring (9) is fixedly provided with a wrench sleeve head (16) through a screw.

4. A novel fixed torque wrench as claimed in claim 3, wherein: the number of the arc-shaped grooves (10) and the number of the communicating holes (12) are four, the four communicating holes (12) are respectively and uniformly distributed in the middle of the inner ring (9) at equal intervals, the size of the first steel ball (11) is the same as that of the second steel ball (14), and the surface of the first steel ball (11) is attached to the inner wall of the arc-shaped groove (10).

5. The novel fixed-torque wrench as claimed in claim 1, wherein: adjustment mechanism is including adjusting awl (20), adjust the fixed bottom that sets up at threaded rod (18) of awl (20), the left end of lower wrench handle (3) runs through and is equipped with activity hole (19), the bottom of threaded rod (18) extends to the inside of activity hole (19), the fixed running gear (21) that is provided with in top of threaded rod (18), the fixed surface of running gear (21) is provided with knob piece (22), be provided with indicating mechanism between the upper surface of upper wrench handle (1) and running gear (21).

6. The novel fixed-torque wrench as claimed in claim 5, wherein: indicating mechanism includes fixed station (23), fixed station (23) are fixed to be set up on the surface on first set screw (5) top, the upper surface activity of fixed station (23) is provided with indicator panel (24), the teeth of a cogwheel of indicator panel (24) circumference side outer wall meshes with the teeth of a cogwheel of rotating gear (21) circumference side outer wall mutually.