CN212071740U

CN212071740U - Torque wrench with wrench head convenient to replace

Info

Publication number: CN212071740U
Application number: CN202020735031.2U
Authority: CN
Inventors: 李华侨
Original assignee: Nanjing Meiouhua Electromechanical Equipment Co ltd
Current assignee: Nanjing Meiouhua Electromechanical Equipment Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-12-04
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a conveniently change torque wrench of spanner head, including the operation panel, its characterized in that: the improved portable electric tool is characterized in that a placing groove is formed in the operating panel, a movable gear is arranged in the placing groove, a first connecting head is fixedly connected to the center of the movable gear in a nested mode, forward teeth and reverse teeth are arranged on the upper portion and the lower portion of the outer surface of the movable gear respectively, a square head is arranged at one end, penetrating through the operating panel, of the bottom of the first connecting head, a movable groove is formed in the first connecting head, and a connecting rod is arranged in the movable groove. The utility model discloses in, through the square head that sets up and the cooperation in square groove and the cooperation of stopper and spacing groove, not only can make the connection that the spanner head structure can be stable, the structure is difficult for appearing rocking, when the operation is used, can stably go on, also dismantles the change easily simultaneously, can realize through the loose gear that sets up with the cooperation of positive and negative dogtooth that the circulation is reciprocal screws into or dismantles the operation, structural connection is stable, and it is convenient to use.

Description

Torque wrench with wrench head convenient to replace

Technical Field

The utility model relates to a spanner technical field especially relates to a conveniently change torque wrench of spanner head.

Background

The torque wrench is a novel operation wrench, can perform reciprocating screwing-in or disassembling operation without taking out a wrench structure, has good practicability, and has certain auxiliary requirements for some torque wrenches along with technical arrays, such as convenient replacement of wrench heads;

some torque wrench that have now, the mode of activity joint is adopted more to the structure, and the joint position adopts the ball structure more, blocks into through the extrusion butt joint, and such connected mode exists the connector easily and rocks, connects unstable inadequately, the condition that breaks away from often can appear, also easily when using simultaneously, the wrench head rocks and leads to the easy deviation that appears of operation, sprains the wrist easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a torque wrench with a wrench head convenient to replace.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a conveniently change torque wrench of spanner head, includes operation panel, its characterized in that: a placing groove is arranged in the operating disk, a movable gear is arranged in the placing groove, a first connecting head is fixedly connected at the center of the movable gear in an embedded manner, the upper and lower positions of the outer surface of the movable gear are respectively provided with a forward tooth and a reverse tooth, the bottom of the first connecting head penetrating through one end of the operating disk is provided with a square head, a movable groove is arranged in the first connecting head, a connecting rod is arranged in the movable groove, a first spring is connected between the bottom of the inner wall of the movable groove and the bottom end of the connecting rod, inner grooves are symmetrically arranged in the connecting rod corresponding to the square heads, two movable blocks are arranged in the inner grooves, a second spring is connected between one side of the inner wall of each inner groove and one side of the outer surface of each movable block, a limiting block is fixedly connected at one side of the, the operation panel below is provided with the second connector with the corresponding position of square head, the bottom of second connector is provided with the operating head, be provided with interior bolt groove in the operating head, the surface one side of operation panel is connected and is provided with the action bars, be provided with the holding tank that is linked together with the standing groove in the action bars, be provided with the movable rod in the holding tank, set up two shifting chutes in the movable rod, two respectively on the shifting chute nested reverse dogtooth and the forward dogtooth that is provided with the corresponding complex of forward tooth, reverse tooth, two equally divide on the shifting chute and do not be provided with two spacing bayonets, equal fixedly connected with and the spacing fixture block of spacing bayonet socket looks nested complex on forward dogtooth and the reverse dogtooth, the operation mouth has been seted up with the position that two shifting chutes correspond to the top of action bars.

As a further description of the above technical solution:

and slope notches are arranged at the two sides of the outer surface of the square head and at the positions corresponding to the two limiting blocks.

As a further description of the above technical solution:

the top of connecting rod just is located operation panel top position fixedly connected with press head, the material of press head is the rubber material.

As a further description of the above technical solution:

the top of the second connector is provided with a square groove in nested fit with the square head, and two sides of the inner wall of the square groove are provided with limit grooves in nested fit with two limit blocks.

As a further description of the above technical solution:

the one end that the shifting chute was kept away from to the movable rod is provided with the fixed plate, it is provided with the third spring to be connected between the inner wall one side of surface one side of fixed plate and holding tank.

As a further description of the above technical solution:

the outer surface of one end of the operating rod, which is far away from the operating panel, is fixedly connected with a rubber grip in a nested manner.

The utility model discloses following beneficial effect has:

the torque wrench with the wrench head convenient to replace comprises a pressing head, wherein the pressing head drives a connecting rod to move, the bottom of the connecting rod compresses a first spring, the connecting rod drives two limiting blocks to contact with two slope-shaped notches simultaneously, the limiting blocks can move transversely through the extrusion fit of the slope surfaces on the slope-shaped notches and the cross sections on the limiting blocks, the limiting blocks extrude a moving block to compress a second spring and enable the limiting blocks to be accommodated in the slope-shaped notches, after a square groove on a second connector is nested and matched with a square head, the pressing head is loosened, the connecting rod can be pushed to ascend through the reset effect of the first spring, meanwhile, the limiting blocks are separated from the reset effect of the slope-shaped notches and automatically clamped into limiting grooves in the square groove, the locking work of the wrench head connection can be completed, the torque wrench can be butted with a nut to be operated through an inner bolt groove on an operating head, the loosening and tightening operation is carried out, the reverse convex teeth in the moving groove are moved to a working position through the operation opening to be matched with the forward teeth on the movable gear, the limiting clamping block is clamped in the limiting clamping opening of the working position, the screwing operation can be carried out by rotating the wrench, the forward convex teeth are moved to the working position to be matched with the reverse teeth on the movable gear, the loosening operation can be carried out by rotating the wrench, when the wrench is not used, the structure can be stored through the same operation, the structure can be protected, the whole structure can realize the rapid and convenient wrench head installation work, the rapid and convenient replacement can be carried out, meanwhile, the stable screwing and loosening bolt operation can be realized through the structure arrangement, the problems of some existing torque wrenches are solved, the structure adopts a movable clamping mode, the clamping position adopts a ball structure, the clamping is clamped through extrusion and butt joint, and the connection mode is realized, have the connector to rock easily, connect unstable inadequately, the condition that breaks away from often can appear, also easily when using simultaneously, the wrench head rocks and leads to the easy deviation that appears of operation, sprains the wrist easily.

Drawings

Fig. 1 is a schematic structural view of a torque wrench with a wrench head convenient to replace according to the present invention;

fig. 2 is a schematic diagram of a position of a limiting block of the torque wrench with a wrench head convenient to replace according to the present invention;

fig. 3 is a schematic view of a forward tooth matching structure of a torque wrench with a wrench head convenient to replace according to the present invention;

fig. 4 is a schematic view of a reverse tooth matching structure of a torque wrench with a wrench head convenient to replace according to the present invention;

fig. 5 is the utility model provides a conveniently change torque wrench's of spanner head square groove position sketch map.

Illustration of the drawings:

1. an operation panel; 2. a placement groove; 3. a movable gear; 301. a positive tooth; 302. reverse teeth; 4. a first connector; 5. a square head; 6. a movable groove; 7. a connecting rod; 8. a first spring; 9. an inner tank; 10. a moving block; 11. a second spring; 12. a limiting block; 13. a slope notch; 14. a pressing head; 15. a second connector; 16. a square groove; 17. a limiting groove; 18. an operating head; 19. an inner bolt slot; 20. an operating lever; 21. accommodating grooves; 22. a movable rod; 23. a moving groove; 24. a reverse convex tooth; 25. a positive lobe; 26. an operation port; 27. a fixing plate; 28. a third spring; 29. a rubber grip; 30. a limiting bayonet; 31. and a limiting clamping block.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a torque wrench convenient for replacing wrench heads comprises an operating panel 1, wherein a placing groove 2 is arranged in the operating panel 1, a movable gear 3 is arranged in the placing groove 2, a first connecting head 4 is fixedly connected at the center of the movable gear 3 in an embedded manner, the upper and lower positions of the outer surface of the movable gear 3 are respectively provided with a forward tooth 301 and a reverse tooth 302, one end of the bottom of the first connecting head 4 penetrating through the operating panel 1 is provided with a square head 5, a movable groove 6 is arranged in the first connecting head 4, a connecting rod 7 is arranged in the movable groove 6, a first spring 8 is connected between the bottom of the inner wall of the movable groove 6 and the bottom end of the connecting rod 7, inner grooves 9 are symmetrically arranged in the connecting rod 7 corresponding to the square head 5, inner grooves 10 are arranged in the two inner grooves 9, and second springs 11 are connected between one side of the inner walls of the two movable blocks 9 and one, the outer surfaces of the two moving blocks 10, which are far away from the second spring 11, are fixedly connected with limiting blocks 12, the lower part of the operating panel 1, which corresponds to the square head 5, is provided with a second connector 15, the bottom of the second connector 15 is provided with an operating head 18, an inner bolt groove 19 is arranged in the operating head 18, one side of the outer surface of the operating panel 1 is connected with an operating rod 20, an accommodating groove 21 communicated with the placing groove 2 is arranged in the operating rod 20, a movable rod 22 is arranged in the accommodating groove 21, two moving grooves 23 are arranged in the movable rod 22, reverse convex teeth 24 and forward convex teeth 25 which correspond to the forward teeth 301 and the reverse teeth 302 are respectively nested in the two moving grooves 23, two limiting bayonets 30 are respectively arranged on the two moving grooves 23, and limiting blocks 31 which are nested and matched with the limiting bayonets 30 are fixedly connected on the forward convex teeth 25 and the reverse convex, the top of the operating lever 20 is provided with an operating opening 26 at a position corresponding to the two moving grooves 23.

Two sides of the outer surface of the square head 5 are provided with slope notches 13 corresponding to the two limiting blocks 12, and the slope on the slope notches 13 is matched with the cross sections on the limiting blocks 12, so that the cross sections of the limiting blocks 12 can be extruded through the slope when the connecting rod 7 is pushed, the limiting blocks 12 are contracted to push the moving block 10 to compress the second springs 11, the limiting blocks 12 can be retracted into the slope notches 13, and the subsequent spanner head butt joint work is facilitated; the top end of the connecting rod 7 is fixedly connected with a pressing head 14 above the operating panel 1, the pressing head 14 is made of rubber, the connecting rod 7 can be driven to move by pressing the pressing head 14, the limiting block 12 can be accommodated in the slope-shaped notch 13 by the arranged transmission structure, the subsequent connection of the wrench head is facilitated, and the pressing head 14 is made of rubber, so that the hand has comfortable feeling during operation; the top of the second connector 15 is provided with a square groove 16 which is in nested fit with the square head 5, two sides of the inner wall of the square groove 16 are provided with limit grooves 17 which are in nested fit with the two limit blocks 12, and the arrangement of the limit blocks 12 and the limit grooves 17 can stably enable the structure of the wrench head to be connected to an operating wrench, so that the wrench head is not only stable in connection, but also convenient to replace, convenient to use and high in flexibility; a fixed plate 27 is arranged at one end of the movable rod 22 far away from the moving groove 23, a third spring 28 is connected between one side of the outer surface of the fixed plate 27 and one side of the inner wall of the accommodating groove 21, a buffering effect can be achieved through the arrangement of the third spring 28, the movable gear 3 can be circularly matched with the convex tooth structure, and the reciprocating operation of the wrench is facilitated; the rubber handle 29 is fixedly connected to the outer surface of one end of the operating rod 20, which is far away from the operating panel 1, in a nested manner, and through the arrangement of the rubber handle 29, a user can stably grab the wrench, and meanwhile, the hand is not easily abraded during working.

The working principle is as follows: when the torque wrench with the wrench head convenient to replace is used, the pressing head 14 is pressed, the pressing head 14 drives the connecting rod 7 to move, the bottom of the connecting rod 7 compresses the first spring 8, meanwhile, the connecting rod 7 drives the two limit blocks 12 to contact with the two slope-shaped notches 13, the limit blocks 12 can move transversely by the extrusion fit of the slopes on the slope-shaped notches 13 and the cross sections on the limit blocks 12, the limit blocks 12 extrude the moving block 10 to compress the second spring 11, the limit blocks 12 are accommodated in the slope-shaped notches 13, after the square groove 16 on the second connector 15 is nested and matched with the square head 5, the pressing head 14 is released, the connecting rod 7 can be pushed to ascend by the reset action of the first spring 8, meanwhile, the limit blocks 12 are separated from the extrusion of the slope-shaped notches 13, the reset action of the second spring 11 is realized, the locking work of wrench head connection can be completed by automatically clamping the limit blocks into the, through interior bolt groove 19 on the operating head 18, can dock with the nut of treating the operation, the elasticity operation is carried out, reverse dogtooth 24 in 23 of shift gate is removed the work position through operation mouth 26, cooperate with forward tooth 301 on the loose gear 3, and go into spacing bayonet socket 30 of work position with spacing fixture block 31 card, the operation can be twisted into to the rotation spanner, through removing the work position with forward dogtooth 25, cooperate with reverse tooth 302 on the loose gear 3, the operation can be loosened in the rotation spanner, when not using, the structure can be received and deposited in the operation of the same reason, can play the guard action to the structure.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a conveniently change torque wrench of spanner head, includes operation panel (1), its characterized in that: a placing groove (2) is arranged in the operating panel (1), a movable gear (3) is arranged in the placing groove (2), a first connecting head (4) is fixedly connected to the center of the movable gear (3) in an embedded mode, forward teeth (301) and reverse teeth (302) are respectively arranged at the upper position and the lower position of the outer surface of the movable gear (3), a square head (5) is arranged at one end, penetrating through the operating panel (1), of the bottom of the first connecting head (4), a movable groove (6) is arranged in the first connecting head (4), a connecting rod (7) is arranged in the movable groove (6), a first spring (8) is connected between the bottom of the inner wall of the movable groove (6) and the bottom end of the connecting rod (7), inner grooves (9) are symmetrically formed in the connecting rod (7) corresponding to the square head (5), and movable blocks (10) are arranged in the two inner grooves (9), and a second spring (11) is connected and arranged between one side of the inner wall of the two inner grooves (9) and one side of the outer surface of the two moving blocks (10), one side of the outer surface of the two moving blocks (10) far away from the second spring (11) is fixedly connected with a limiting block (12), a second connector (15) is arranged at the position corresponding to the square head (5) below the operating panel (1), an operating head (18) is arranged at the bottom of the second connector (15), an inner bolt groove (19) is arranged in the operating head (18), an operating rod (20) is connected and arranged at one side of the outer surface of the operating panel (1), an accommodating groove (21) communicated with the placing groove (2) is arranged in the operating rod (20), a movable rod (22) is arranged in the accommodating groove (21), two moving grooves (23) are arranged in the movable rod (22), two it is provided with respectively to nest in shifting chute (23) with forward tooth (301), reverse tooth (302) corresponding complex reverse dogtooth (24) and forward dogtooth (25), two it is provided with two spacing bayonet sockets (30) respectively to divide equally on shifting chute (23), equal fixedly connected with is nested complex spacing fixture block (31) mutually with spacing bayonet socket (30) on forward dogtooth (25) and reverse dogtooth (24), operation mouth (26) have been seted up with two corresponding positions in shifting chute (23) to the top of action bars (20).

2. The torque wrench with the wrench head convenient to replace according to claim 1, wherein: and slope notches (13) are arranged at the two sides of the outer surface of the square head (5) and at the positions corresponding to the two limit blocks (12).

3. The torque wrench with the wrench head convenient to replace according to claim 1, wherein: the top end of the connecting rod (7) is fixedly connected with a pressing head (14) above the operating panel (1), and the pressing head (14) is made of rubber.

4. The torque wrench with the wrench head convenient to replace according to claim 1, wherein: the top of the second connector (15) is provided with a square groove (16) which is matched with the square head (5) in a nested manner, and two sides of the inner wall of the square groove (16) are provided with limit grooves (17) which are matched with the two limit blocks (12) in a nested manner.

5. The torque wrench with the wrench head convenient to replace according to claim 1, wherein: one end of the movable rod (22) far away from the moving groove (23) is provided with a fixed plate (27), and a third spring (28) is connected between one side of the outer surface of the fixed plate (27) and one side of the inner wall of the accommodating groove (21).

6. The torque wrench with the wrench head convenient to replace according to claim 1, wherein: the outer surface of one end of the operating rod (20) far away from the operating panel (1) is fixedly connected with a rubber grip (29) in a nested manner.