CN211029796U

CN211029796U - Direction-changeable wrench

Info

Publication number: CN211029796U
Application number: CN201921984180.6U
Authority: CN
Inventors: 胥日升
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-17
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a direction-variable wrench, which comprises a rotating handle, a corner mechanism arranged at the output end of the rotating handle and used for transmitting torque and changing the processing direction, and a switching mechanism arranged at the output end of the corner mechanism and used for realizing the axial rotation of a self body through torque force and detachably connected with a screw sleeve; the cross section of the corner mechanism is in a periscopic corner structure. The utility model discloses a variable direction's spanner, include, twist grip, corner mechanism and shifter, twist grip and shifter are connected to the corner mechanism, rotate the twist grip application of force, realize the rotation of shifter with power transmission to shifter through corner mechanism to adopt periscopic corner structure to realize the change of application of force direction, thereby realize dismantling screw or bolt in less space and screw sleeve cooperation, break away from the space restriction that the application of force needs.

Description

Direction-changeable wrench

Technical Field

The utility model relates to a mounting tool technical field especially relates to a variable direction's spanner.

Background

The economy is rapidly developed, the competition of various industries is fierce, and the working efficiency of parts is particularly important. The wrench is a tool commonly used in the field of machinery, and is a manual tool for screwing or unscrewing a screw, a nut and the like by utilizing the lever principle. For example, in the process of assembling the resistor box, a steel plate on the surface of the resistor box needs to be attached to the box body in a knob screw mode, however, the hole site spacing at the corner of the steel frame structure is very small, the screw can only be matched with a nut and a nut by bare hands, then a wrench is used for supporting the screw, and the nut is screwed by a screwdriver replaced by a screw sleeve; in the operation process, the screwdriver cannot be completely meshed due to narrow space, so that the screwdriver is easy to disengage from a screw or clamp; and when assembling banded resistance, the distance between row is very narrow, generally can only hold the width of a finger or littleer to have darker degree of depth, lead to taking time and labouriously when the installation screw. The general processing technology of current mill is that the external member such as screw, nut is supporting according to the order with bare-handed earlier, screws up with the hand, utilizes the spanner to support the nut again, twists it with removable electricity batch of head spare part, accomplishes whole operation. On one hand, the operation needs two tools, namely a spanner and an electric screwdriver, and the electric screwdriver needs to be charged and cannot continuously work; on the other hand, under the narrow and small condition in space, the huge electricity of size is criticized and is difficult to stretch into narrow and small gap and carry out the operation, leads to the screw sleeve of electricity criticizing can not the complete interlock nut, produces certain inclination and leads to the electricity criticizing to break away from or block to die to influence work efficiency, still have the danger of production accident even.

SUMMERY OF THE UTILITY MODEL

The utility model provides a variable direction's spanner to solve current spanner and have certain requirement to processing space, and the lower technical problem of dismouting operating efficiency of part.

The utility model adopts the technical scheme as follows:

a direction-variable wrench comprises a rotating handle, a corner mechanism and a switching mechanism, wherein the corner mechanism is arranged at the output end of the rotating handle and used for transmitting torque and changing the torque transmission direction; the corner mechanism adopts a periscopic corner structure.

Further, the angle turning mechanism includes: the protection tube, be in the driving bevel gear that is used for transmitting the moment of torsion of protection tube inside corner and with the driven bevel gear meshing complex of driving bevel gear, the axial direction of driving bevel gear is different with driven bevel gear, driving bevel gear and the first free end cooperation of twist grip are connected, driven bevel gear and the first free end cooperation of shifter are connected to realize the change from the twist grip to the application of force direction of shifter, be in protection tube port department and overlap respectively and establish the first thrust bearing and the second thrust bearing that are used for preventing to send axial float at the in-process of moment of torsion transmission at the twist grip and shifter.

Furthermore, the first thrust bearing comprises an upper ring, an upper ball, an upper retainer, a middle ring, a lower ball, a lower retainer and a lower ring which are sequentially arranged in the axial direction, and the second thrust bearing and the first thrust bearing adopt the same structure.

Further, the middle ring of the first thrust bearing is fixedly connected with the protection pipe or integrally formed with the protection pipe; the middle ring of the second thrust bearing is fixedly connected with the protection pipe or integrally formed.

Furthermore, an upper ring and a lower ring of the first thrust bearing are respectively fixedly connected with the rotating handle or integrally formed; the upper ring and the lower ring of the second thrust bearing are respectively fixedly connected with the switching mechanism or integrally formed.

Furthermore, the rotating handle comprises a handle for applying force to drive the rotating handle to rotate, a handle body connected with the handle, a handle tail with one end connected with the handle body and the other end connected with the driving bevel gear in a matching way, and a first thrust bearing is sleeved on the handle tail; the handle, the handle body and the handle tail are integrally formed.

Furthermore, the base body structure of the handle body adopts an arc corner structure; or the handle and the handle body are in hinged fit, so that the turning angle between the handle and the handle body can be freely adjusted.

Further, the handle is a telescopic structure with adjustable length.

Further, the conversion mechanism includes: the second thrust bearing is sleeved on the conversion rod, and the conversion head is positioned at the free end of the conversion rod and is detachably connected with the screw sleeve; the conversion rod and the conversion head are integrally formed.

Furthermore, the conversion head and the screw sleeve are connected by a buckle, a thread or a plug.

The utility model discloses following beneficial effect has:

the utility model discloses a variable direction's spanner, include, twist grip, corner mechanism and shifter, twist grip and shifter are connected to the corner mechanism, rotate the twist grip application of force, realize the rotation of shifter with power transmission to shifter through corner mechanism to adopt periscopic corner structure to realize the change of application of force direction, thereby realize dismantling screw or bolt in less space and screw sleeve cooperation, break away from the space restriction that the application of force needs. The direction-variable wrench is simple and stable in structure, easy to produce and manufacture, small in size, easy to carry and transfer, high in transmission stability and accuracy, capable of being easily used in narrow parts which are difficult to force or touch by a common wrench, free of charging, strong in independence and suitable for popularization and application.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic view of a variable direction wrench according to a preferred embodiment of the present invention;

fig. 2 is a schematic view illustrating the connection of the drive bevel gear and the driven bevel gear according to the preferred embodiment of the present invention; and

fig. 3 is a partial schematic view of a first thrust bearing according to a preferred embodiment of the present invention.

Description of reference numerals:

1. rotating the handle; 11. handshaking; 12. a handle body; 13. a shank tail;

2. a corner turning mechanism; 21. protecting the tube; 22. a drive bevel gear; 23. a driven bevel gear; 24. a first thrust bearing; 25. a second thrust bearing;

3. a switching mechanism; 31. a transfer lever; 32. and (6) switching the head.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

FIG. 1 is a schematic view of a variable direction wrench according to a preferred embodiment of the present invention; fig. 2 is a schematic view illustrating the connection of the drive bevel gear and the driven bevel gear according to the preferred embodiment of the present invention; fig. 3 is a partial schematic view of a first thrust bearing according to a preferred embodiment of the present invention.

As shown in fig. 1, the direction-variable wrench of the present embodiment includes a turning handle 1, a turning mechanism 2 at an output end of the turning handle 1 for transmitting torque and changing a torque transmission direction, and a switching mechanism 3 at an output end of the turning mechanism 2 for realizing circumferential rotation of a body thereof by a torque force and detachably connected to a screw sleeve; the corner mechanism 2 adopts a periscopic corner structure. The utility model discloses a variable direction's spanner, include, twist grip 1, corner mechanism 2 and shifter 3, twist grip 1 and shifter 3 are connected to corner mechanism 2, rotate 1 application of force of twist grip, realize the rotation of shifter 3 through corner mechanism 2 with power transmission to shifter 3 to adopt periscopic formula corner structure to realize the change of application of force direction, thereby realize dismantling screw or bolt or install less space and screw sleeve cooperation, break away from the space restriction that the application of force needs. The direction-variable wrench is simple and stable in structure, easy to produce and manufacture, small in size, easy to carry and transfer, high in transmission stability and accuracy, capable of being easily used in narrow parts which are difficult to force or touch by a common wrench, free of charging, strong in independence and suitable for popularization and application.

As shown in fig. 1 and 2, in the present embodiment, the rotation angle mechanism 2 includes: the protection tube 21, the drive bevel gear 22 that is used for transmitting the moment of torsion that is located the inside corner of protection tube 21 and the driven bevel gear 23 with drive bevel gear 22 meshing cooperation, the axial direction of drive bevel gear 22 and driven bevel gear 23 is different, drive bevel gear 22 and the first free end of twist grip 1 are connected in coordination, driven bevel gear 23 and the first free end of shifter mechanism 3 are connected in coordination, in order to realize the change from twist grip 1 to the direction of application of force of shifter mechanism 3, be located protection tube 21 port department and overlap respectively and establish the first thrust bearing 24 and the second thrust bearing 25 that are used for preventing sending axial float in the process of moment of torsion transmission at twist grip 1 and shifter mechanism 3. The above-mentioned corner mechanism 2 realizes the transmission of torque force and the change of the direction of application of force, and the corner mechanism 2 includes a protection tube 21, a drive bevel gear 22, a driven bevel gear 23, a first thrust bearing 24 and a second thrust bearing 25. Through applying force to twist grip 1, make twist grip 1 rotate, inside the first free end entering protection tube 21 of twist grip 1, with drive bevel gear 22 coaxial coupling, and drive bevel gear 22 and rotate, through drive bevel gear 22 and driven bevel gear 23 meshing, and make the different driven bevel gear 23 rotations of axial direction through the torque transfer, thereby realize the transmission of power and the change of application of force direction, driven bevel gear 23 and the first free end coaxial coupling of shifter 3, it rotates to drive shifter 3 base member when driven bevel gear 23 rotates, thereby cooperate the screw sleeve, the mode through the knob is screwed up screw and nut. The spanner with the changeable direction can be processed in a narrow space by changing the force application direction. In order to protect the parts inside the corner mechanism 2, a protection pipe 21 is added, and the protection pipe 21 can be made of iron. The torque transmission between the driving bevel gear 22 and the driven bevel gear 23 and the structural stability of part of the rotating handle 1 and part of the switching mechanism 3 in the corner mechanism 2 are met, so that the relative stability among all parts is kept, thrust bearings are arranged at positions close to pipe orifices at two ends of the protection pipe 21, and the first free end of the rotating handle 1 and the first free end of the switching mechanism 3 are lubricated well in the rotating process while the protection pipe 21 is kept static relatively. The above-described magnitude of the speed or force of torque transmission is achieved by designing the number of teeth of the drive bevel gear 22 and the driven bevel gear 23 to be different.

As shown in fig. 1 and 3, in the present embodiment, the first thrust bearing 24 includes an upper ring, upper balls and an upper retainer, a middle ring, lower balls and a lower retainer, and a lower ring, which are axially arranged in this order. The second thrust bearing 25 has the same structure as the first thrust bearing 24. The first thrust bearing 24 and the second thrust bearing 25 each have two layers of balls and cages for maintaining rotation. Compared with a single-layer retainer, the double-layer retainer forms a mutually-embedded form, a fixing effect is achieved, and the stability of the whole device is improved.

In this embodiment, the middle ring of the first thrust bearing 24 is fixedly connected to or integrally formed with the protection tube 21. The middle ring of the second thrust bearing 25 is fixedly connected or integrally formed with the protection tube 21. To improve the overall stability of the variable direction wrench. The influence on the processing efficiency caused by dislocation in the processing process is prevented.

In this embodiment, the upper ring and the lower ring of the first thrust bearing 24 are respectively fixedly connected to the rotating handle 1 or integrally formed. The upper ring and the lower ring of the second thrust bearing 25 are fixedly connected or integrally formed with the conversion mechanism 3, respectively. The upper ring and the lower ring of the first thrust bearing 24, the rotating handle 1 or the second thrust bearing 25 and the switching mechanism 3 are fixedly connected or integrally formed, so that structural stability is ensured in a long-term use process, abrasion among all parts is reduced, and the occurrence of the conditions of shell clamping or falling off among the parts is reduced. Therefore, in the assembling process of the direction-variable wrench, the first thrust bearing 24 and the second thrust bearing 25 at both ends of the rotation angle mechanism 2 are installed, the drive bevel gear 22 is engaged with the driven bevel gear 23, and finally the protection pipe 21 having the middle ring is installed, and the protection pipe 21 can be installed first, then the gap is welded and polished to form a stable structure.

In this embodiment, the rotating handle 1 includes a handle 11 for applying force to drive the rotating handle 1 to rotate, a handle body 12 connected to the handle 11, a handle tail 13 having one end connected to the handle body 12 and the other end connected to the drive bevel gear 22 in a matching manner, and a first thrust bearing 24 is sleeved on the handle tail 13. The handle 11, the handle body 12 and the handle tail 13 are integrally formed. The handle 11 is a force application stress part, the rotating handle 1 is enabled to rotate through applying force, the handle tail 13 extends into the protecting tube 21 to be connected with the driving bevel gear 22, and the driving bevel gear 22 is driven to rotate.

In this embodiment, the base structure of the handle body 12 is an arc-shaped corner structure. Alternatively, the handle 11 and the handle 12 are hinged to each other, so that the turning angle between the handle 11 and the handle 12 can be freely adjusted. The base of the handle body 12 is constructed with arcuate corners, such as 45 °, 60 °, 30 °, etc. Handle tail 13 passes through the sleeve pipe suit in first thrust bearing 24, adopts the polygon cooperation between handle tail 13 and the sleeve pipe, triangular prism cooperation, square column cooperation, pentagon post cooperation, hexagonal column cooperation, eight square column cooperation etc. to change in twist grip 1 adopts the twist grip 1 of different grade type to peg graft in the sleeve pipe as required in order to realize driving the commentaries on classics.

In this embodiment, the handle 11 is a telescopic structure with adjustable length. According to the lever principle, the handle is convenient to hold and saves more labor by adjusting the length of the handle 11. Alternatively, the handle 11 can be lengthened or shortened by assembling and disassembling multiple unit segments which are connected in a threaded fit manner. The handle body 12 may also be similarly constructed.

In the present embodiment, the conversion mechanism 3 includes: a conversion rod 31 used for being axially connected with the driven bevel gear 23, a second thrust bearing 25 is sleeved on the conversion rod 31, and a conversion head 32 which is arranged at the free end of the conversion rod 31 and is used for being detachably connected with a screw sleeve. The switching lever 31 is integrally formed with the switching head 32. The conversion mechanism 3 comprises a conversion rod 31 and a conversion head 32, the conversion rod 31 is axially connected with the driven bevel gear 23 and receives torque force to rotate, the conversion head 32 is matched with the screw sleeve, the handle 11 applies force to drive the rotation handle 1 to rotate, so that the conversion mechanism 3 rotates, and the screw sleeve is further driven to rotate to realize the dismounting or mounting of screws or bolts.

In this embodiment, the adaptor 32 and the screw socket are connected by a snap connection, a screw connection, or a plug connection. Through the conversion head 32 and the screw sleeve can be detachably connected, the screw sleeves with different sizes or sizes can be conveniently replaced, so that the wrench with the same direction can adapt to screws or bolts with different sizes, and the cost is reduced. Can also be magnetically connected for assistance and is combined and used with splicing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A direction-variable wrench is characterized in that,

the device comprises a rotating handle (1), a corner mechanism (2) which is arranged at the output end of the rotating handle (1) and used for transmitting torque and changing the torque transmission direction, and a switching mechanism (3) which is arranged at the output end of the corner mechanism (2) and used for realizing circumferential rotation of a body of the device through torque force and is detachably connected with a screw sleeve;

the corner mechanism (2) adopts a periscopic corner structure.

2. The direction changeable wrench of claim 1,

the corner mechanism (2) includes:

a protection tube (21),

a driving bevel gear (22) and a driven bevel gear (23) which are arranged at the inner corner of the protection tube (21) and are used for transmitting torque, wherein the driving bevel gear (22) and the driven bevel gear (23) are in meshing fit, the axial directions of the driving bevel gear (22) and the driven bevel gear (23) are different, the driving bevel gear (22) is in fit connection with the first free end of the rotating handle (1), the driven bevel gear (23) is in fit connection with the first free end of the conversion mechanism (3) so as to realize the change of the force application direction from the rotating handle (1) to the conversion mechanism (3),

be in protection tube (21) port department and overlap respectively and establish turning handle (1) with what shifter (3) was used for preventing to send axial float's first thrust bearing (24) and second thrust bearing (25) at the in-process of torque transmission.

3. The variable direction wrench of claim 2,

the first thrust bearing (24) comprises an upper ring, an upper ball, an upper retainer, a middle ring, a lower ball, a lower retainer and a lower ring which are axially and sequentially arranged,

the second thrust bearing (25) has the same structure as the first thrust bearing (24).

4. The direction changeable wrench of claim 3,

the middle ring of the first thrust bearing (24) is fixedly connected with the protection pipe (21) or integrally formed;

the middle ring of the second thrust bearing (25) is fixedly connected with the protection pipe (21) or integrally formed.

5. The direction changeable wrench of claim 3,

the upper ring and the lower ring of the first thrust bearing (24) are respectively fixedly connected with the rotating handle (1) or integrally formed;

the upper ring and the lower ring of the second thrust bearing (25) are respectively fixedly connected with the conversion mechanism (3) or integrally formed.

6. The variable direction wrench of claim 2,

the rotating handle (1) comprises a grip (11) for applying force to drive the rotating handle (1) to rotate, a handle body (12) connected with the grip (11), a handle tail (13) with one end connected with the handle body (12) and the other end connected with the driving bevel gear (22) in a matched manner, and the first thrust bearing (24) is sleeved on the handle tail (13);

the handle (11), the handle body (12) and the handle tail (13) are integrally formed.

7. The direction changeable wrench of claim 6,

the base body structure of the handle body (12) adopts an arc-shaped corner structure; or

The handle (11) is in hinged fit with the handle body (12), so that the turning angle between the handle (11) and the handle body (12) can be freely adjusted.

8. The direction changeable wrench of claim 6,

the holding handle (11) is of a telescopic structure with adjustable length.

9. The variable direction wrench of claim 2,

the conversion mechanism (3) includes:

a conversion rod (31) used for being axially connected with the driven bevel gear (23), the second thrust bearing (25) is sleeved on the conversion rod (31),

a switching head (32) at the free end of the switching rod (31) for detachable connection with a screw sleeve;

the conversion rod (31) and the conversion head (32) are integrally formed.

10. The variable direction wrench of claim 9,

the conversion head (32) and the screw sleeve are connected in a buckling mode, a threaded mode or a plug-in mode.