CN109434734B

CN109434734B - Convenient to use's spanner

Info

Publication number: CN109434734B
Application number: CN201811545899.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Lotut Innovation Design Co Ltd
Current assignee: CANGZHOU DEAN EXPLOSION-PROOF SPECIAL TOOL MANUFACTURING Co.,Ltd.
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2020-08-07
Anticipated expiration: 2038-12-17
Also published as: CN109434734A

Abstract

The invention provides a wrench convenient to use, and belongs to the technical field of wrenches. It has solved the little class of technical problem of current spanner application range. A wrench convenient to use comprises a wrench cover, a wrench seat and a rotating cylinder, wherein the wrench cover is fixed on the wrench seat, the rotating cylinder is rotatably arranged below the wrench seat, the wrench cover is hollow, a cavity is formed in the wrench seat, a positioning sheet is arranged in the wrench seat, the positioning sheet is fixed in the wrench seat through a plurality of tension springs, a plurality of through holes I are formed in the positioning sheet, a plurality of adjusting columns are arranged in the wrench seat, the upper ends of the adjusting columns penetrate into the wrench cover, the upper ends of the adjusting columns are hexagonal columns, the adjusting columns are arranged in the wrench seat in a honeycomb shape, the lower ends of the adjusting columns penetrate into the through holes I, and the lower ends of the adjusting columns are fixedly connected with the positioning sheet through tension springs II. The invention has the advantage of wide application range.

Description

Convenient to use's spanner

Technical Field

The invention belongs to the technical field of wrenches, and particularly relates to a wrench convenient to use.

Background

The wrench is a common mounting and dismounting tool, which can screw a bolt or a nut by screwing a screw fastening piece such as the bolt or the nut by utilizing a lever principle, and when in use, external force is applied to a handle part along the rotation direction of the screw.

The existing spanner is generally only suitable for nuts of one type, and the spanner of different specifications can work if nuts of different types exist, so that the operation is complex, and the carrying is not convenient.

The length of the existing wrench is generally fixed due to the defect of design, and in the using process, because the lever force arm is not long enough, the existing wrench is difficult to screw out tighter bolts, screws, nuts and the like, and under the condition, an auxiliary rod capable of increasing the lever force arm of the wrench is often required to be sleeved at the tail end of the wrench.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a wrench convenient to use, and solves the problem of small use range.

The purpose of the invention can be realized by the following technical scheme:

a wrench convenient to use comprises a wrench cover, a wrench seat and a rotating cylinder, wherein the wrench cover is fixed on the wrench seat, the rotating cylinder is rotatably arranged below the wrench seat, and the wrench is characterized in that the wrench cover is hollow, a cavity is arranged in the wrench seat, a positioning sheet is arranged in the wrench seat, the positioning sheet is fixed in the wrench seat through a plurality of tension springs I, a plurality of through holes I are formed in the positioning sheet, a plurality of adjusting columns are arranged in the wrench seat, the upper ends of the adjusting columns penetrate into the wrench cover, the upper ends of the adjusting columns are hexagonal columns, the adjusting columns are arranged in the wrench cover in a honeycomb shape, the lower ends of the adjusting columns penetrate into the through holes I, the lower ends of the adjusting columns are fixedly connected with the positioning sheet through tension springs II, the lower ends of the adjusting columns are provided with limiting blocks arranged at equal intervals, the limiting blocks can be fastened on the positioning sheet, and a resetting mechanism capable of resetting the adjusting columns is arranged, the wrench seat is internally provided with an adjusting control mechanism for controlling the rotatable direction of the wrench.

The working principle of the invention is that in the using process, a wrench cover of a wrench is sleeved on a screw with any shape or an object needing to rotate, an internal adjusting column and the screw are extruded to be pressed inwards, the adjusting column in the wrench cover forms the shape of the screw, and the screw can be loosened or tightened by rotating a wrench seat.

In the using process, the hexagonal prism-shaped adjusting columns can be mutually extruded, and in the process of rotating the screw, the adjusting columns cannot rotate. In the process of pressing down, the stopper of adjusting the post lower extreme can the straining on the spacer, prevents to adjust the post in the use and resets, makes the screw break away from in the spanner lid. After finishing using, through canceling release mechanical system, enable the regulation post of being impressed and reset, convenient next use, regulation control structure can control the spanner and can the pivoted direction, should adjust control structure and can adjust out two kinds of modes, a mode can only clockwise rotate the screw, when anticlockwise rotation, when rotating a section of thick bamboo and rotating, the spanner seat does not rotate, another kind of mode can only anticlockwise rotate the screw, when rotating a section of thick bamboo and clockwise rotating, the spanner seat does not rotate.

In the wrench convenient to use, the upper end of the adjusting column is in a triangular column shape. Under the shape, when the screw enters the wrench cover, the triangular column can be attached to the edge of the screw, and in the rotating process, the adjusting columns in the triangular column can be mutually extruded to prevent rotation.

In above-mentioned convenient to use's spanner, through-hole one be oval-shaped, the lower extreme of adjusting the post is cylindricly, the lower extreme of adjusting the post can remove in through-hole one. The regulation post can remove in through-hole one, when adjusting the post and progressively pushing down, adjusts the stopper on the post and can the straining on the spacer, when removing the spacer, adjusts the stopper on the post and breaks away from the spacer, adjusts the post and resets.

In the wrench convenient to use, the wrench seat is internally provided with at least two limiting grooves, the positioning sheet is provided with a limiting sheet corresponding to the limiting grooves, and the limiting sheet is arranged in the sliding groove and can slide in the limiting grooves. The limiting grooves are positioned on two symmetrical sides of the wrench seat, the limiting pieces are positioned on two symmetrical sides of the positioning piece, and the positioning piece cannot deflect in the moving process, so that the positioning piece can only move on one straight line.

In the convenient wrench, the reset mechanism comprises a rotating ring, a connecting steel wire, an auxiliary wheel and a pressure spring, two symmetrical openings communicated with the cavity are formed in the wrench seat, two connecting lugs are arranged on an inner ring of the rotating ring and extend into the openings and can move in the openings, the auxiliary wheel is rotatably arranged on the wrench seat, one side of each connecting lug is connected with the wrench seat through the pressure spring, the other side of each connecting lug is connected with the positioning piece through the connecting steel wire, and the connecting steel wire is wound on the auxiliary wheel. Clockwise or anticlockwise rotation swivel becket, the swivel becket pulls and connects the copper wire and drives the spacer removal, and the spacer is buckled the regulation post on the spacer and is reset after removing, then loosens the swivel becket, rotates and resets under the effect of pressure spring. Through in the design, can be convenient let adjust the post and reset. And the direction can be rotated at will, the adjusting columns can be reset, and the operation is convenient and simple.

In the wrench convenient to use, the rotating ring is provided with two anti-skidding parts. The anti-skidding part is arranged, so that the anti-skidding device is convenient for workers to use and prevents skidding during rotation.

In the wrench convenient to use, the rotating cylinder is provided with a hexagonal jack, and a magnetic block is arranged in the jack.

In the wrench convenient to use, the jack is internally provided with the connecting rod which is made of magnetic materials, the connecting rod comprises a first rod, a second rod and a third rod, the first rod is hinged to the second rod, the second rod is hinged to the third rod, the first rod is sleeved with a first limiting sleeve, the first limiting sleeve can slide to the junction of the first rod and the second rod, the second rod is sleeved with a second limiting sleeve, and the second limiting sleeve can slide to the junction of the second rod and the third rod. After one end of the connecting rod is inserted into the jack, the magnetic block attracts the connecting rod, and the wrench seat cannot fall off from the connecting rod in the operation and use process. This connecting rod can buckle, can use different length under the environment of difference, and the pole one or the pole two that buckle all can regard as application of force portion, makes things convenient for screwing up or unscrewing of screw. The first limiting sleeve and the second limiting sleeve can protect the connecting rod, the first limiting sleeve protects the joint of the first connecting rod and the second connecting rod, and the second limiting sleeve protects the joint of the second connecting rod and the third connecting rod in a linear state, so that the service life of the connecting rod is prolonged.

In the wrench convenient to use, the second rod and the third rod are fixed with limit rings. The limiting ring can limit the lowest height of the first limiting sleeve and the second limiting sleeve.

In the wrench convenient to use, the adjusting and controlling mechanism comprises a moving piece, a toothed column, a sliding piece I and a sliding piece II, the rotating cylinder is provided with a first sliding groove and a second sliding groove which are symmetrical, the moving plate is provided with a first sliding lug and a second sliding lug which are symmetrically arranged, the first sliding lug and the second sliding lug are respectively arranged in the first sliding groove and the second sliding groove, the first sliding lug penetrates out of the first sliding groove, the second sliding lug penetrates into the second sliding groove, a second through hole is arranged in the middle of the moving piece, the tooth column is fixed on the wrench seat and penetrates into the second through hole, the first sliding lug is provided with a first groove, the first sliding sheet is arranged in the first groove in a sliding manner and is connected with the bottom of the first groove through a first spring, a second groove is formed in the second sliding lug, the first sliding sheet is arranged in the second groove in a sliding mode, and the second sliding sheet is connected with the bottom of the second groove through a second spring; one end of the slip sheet is provided with a first tooth capable of fastening the tooth column when rotating clockwise, a second tooth capable of fastening the tooth column when rotating anticlockwise is arranged on the slip sheet, and the rotating cylinder is further provided with a limiting structure used for limiting the movement of the moving sheet. The movable piece is manually pressed at one end, a first sliding piece on the movable piece is abutted against a tooth post at the middle part, at the moment, in the clockwise rotation process of the rotating cylinder, a first tooth on the first sliding piece is meshed and fixed with the tooth post, the rotating cylinder rotates to drive a wrench seat at the upper part to rotate together, in the anticlockwise rotation process, the first tooth on the first sliding piece is stressed and separated from the tooth post, and then after the rotation is stopped, the first sliding piece is under the action of a first spring, and the first tooth is continuously meshed with the tooth post. When the piece will be removed in manual when pressing to the other end, tooth two on the gleitbretter two supports with the tooth post and leans on, at this moment, when rotating a section of thick bamboo anticlockwise rotation, tooth two and tooth post meshing, a rotation section of thick bamboo can drive the spanner seat and rotate, and when rotating a section of thick bamboo clockwise rotation, gleitbretter two breaks away from the tooth post, and gleitbretter two continues to mesh with the tooth post after the stall. Through the mode, the screw can be conveniently screwed or unscrewed, the step of continuously and repeatedly sleeving the wrench cover into the screw is not needed, and the use is convenient. When the movable sheet is pushed to one end, the limiting structure can limit the movable sheet, so that the movable sheet is prevented from moving.

In the wrench convenient to use, the limiting structure comprises a sliding column, the rotating cylinder is provided with a sliding hole, the sliding column is fixedly connected in the sliding hole through a spring III, the moving piece is provided with a limiting opening, and the sliding column can be clamped into the limiting opening. After the sliding piece is pushed to the preset position, the sliding column slides into the limiting port through the second spring, the moving piece is limited, after larger force is used, the sliding column can be pushed back into the sliding hole, and the moving piece can move.

Compared with the prior art, the invention has the following advantages:

1. in the using process, the hexagonal prism-shaped adjusting columns can be mutually extruded, and in the process of rotating the screw, the adjusting columns cannot rotate. In the process of pressing down, the stopper of adjusting the post lower extreme can the straining on the spacer, prevents to adjust the post in the use and resets, makes the screw break away from in the spanner lid. After finishing using, through canceling release mechanical system, enable the regulation post of being impressed and reset, convenient next use, regulation control structure can control the spanner and can the pivoted direction, should adjust control structure and can adjust out two kinds of modes, a mode can only clockwise rotate the screw, when anticlockwise rotation, when rotating a section of thick bamboo and rotating, the spanner seat does not rotate, another kind of mode can only anticlockwise rotate the screw, when rotating a section of thick bamboo and clockwise rotating, the spanner seat does not rotate.

2. Clockwise or anticlockwise rotation swivel becket, the swivel becket pulls and connects the copper wire and drives the spacer removal, and the spacer is buckled the regulation post on the spacer and is reset after removing, then loosens the swivel becket, rotates and resets under the effect of pressure spring. Through in the design, can be convenient let adjust the post and reset. And the direction can be rotated at will, the adjusting columns can be reset, and the operation is convenient and simple.

3. Through adjusting control mechanism, can make things convenient for the screwing up or unscrew of screw, need not the step of emboliaing the screw with the repetition of spanner lid continuity, convenient to use.

Drawings

FIG. 1 is a schematic of the present invention.

Fig. 2 is a schematic view of the middle wrench cover, wrench base, and rotary cylinder of the present invention.

FIG. 3 is a schematic view of a conditioning column of the present invention.

Fig. 4 is a structural view of the return mechanism in the present invention.

Fig. 5 is a schematic view of the conditioning column in the operating state of the invention.

Fig. 6 is a schematic view of the regulating control mechanism of the present invention.

In the figure, 1, a wrench cover; 2. a wrench base; 2a, a limiting groove; 2b, opening; 3. a rotating cylinder; 4. positioning plates; 4a, a limiting sheet; 4b, a first through hole; 5. a first tension spring; 6. an adjustment column; 6a, a limiting block; 7. a tension spring II; 8. a rotating ring; 8a, connecting lugs; 8b, a non-slip part; 9. connecting steel wires; 10. an auxiliary wheel; 11. a pressure spring; 12. a first rod; 13. a second rod; 14. a third rod; 15. a first limiting sleeve; 16. a second limiting sleeve; 17. a limiting ring; 18. moving the sheet; 18a, a first sliding lug; 18b, a second sliding lug; 18c, a second through hole; 19. a tooth post; 20. a first sliding sheet; 21. a second sliding sheet; 22. a first groove; 23. a first spring; 24. a second groove; 25. a second spring; 26. a first tooth; 27. a second tooth; 28. a traveler; 29. a limiting port; 30. and a third spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, a wrench with convenient use comprises a wrench cover 1, a wrench seat 2 and a rotating cylinder 3, wherein the wrench cover 1 is fixed on the wrench seat 2, the rotating cylinder 3 is rotatably arranged under the wrench seat 2, the wrench cover 1 is hollow, a cavity is arranged in the wrench seat 2, a positioning sheet 4 is arranged in the wrench seat 2, the positioning sheet 4 is fixed in the wrench seat 2 through a plurality of tension springs 5, a plurality of through holes 4b are arranged on the positioning sheet 4, a plurality of adjusting columns 6 are arranged in the wrench seat 2, the upper ends of the adjusting columns 6 penetrate into the wrench cover 1, the upper ends of the adjusting columns 6 are hexagonal prism-shaped, the adjusting columns 6 are arranged in the wrench cover 1 in a honeycomb shape, the lower ends of the adjusting columns 6 penetrate into the through holes 4b, the lower ends of the adjusting columns 6 are fixedly connected with the positioning sheet 4 through a tension spring 7, the lower ends of the adjusting columns 6 are provided with limiting blocks 6a arranged at equal intervals, the limiting blocks 6a can be fastened on the positioning, the wrench seat 2 is provided with a resetting mechanism which can reset the adjusting column 6, and the wrench seat 2 is internally provided with an adjusting control mechanism which is used for controlling the rotatable direction of the wrench.

The working principle of the wrench is that in the using process, a wrench cover 1 of a wrench is sleeved on a screw or an object needing to rotate, an internal adjusting column 6 and the screw are extruded to be pressed inwards, the adjusting column 6 in the wrench cover 1 is in the shape of the screw, and the screw can be loosened or screwed by rotating a wrench seat 2.

In the using process, the hexagonal prism-shaped adjusting columns 6 can be mutually extruded, and in the process of rotating the screw, the adjusting columns 6 cannot rotate. In the process of pressing downwards, the limiting block 6a at the lower end of the adjusting column 6 can be fastened on the positioning sheet 4, so that the adjusting column 6 is prevented from resetting in the using process, and the screw is separated from the wrench cover 1. After finishing using, through canceling release mechanical system, enable the regulation post 6 of being impressed and reset, convenient next use, adjust control structure and can control the spanner direction that can rotate, should adjust control structure and can adjust out two kinds of modes, a mode can only clockwise rotate the screw, when anticlockwise rotation, when rotating a section of thick bamboo 3 and rotating, spanner seat 2 does not rotate, another kind of mode can only anticlockwise rotate the screw, when rotating a section of thick bamboo 3 and clockwise rotating, spanner seat 2 does not rotate.

Specifically, the upper end of the adjusting column 6 is triangular column-shaped. Under the shape, when the screw enters the wrench cover 1, the triangular column shape can be attached to the edge of the screw, and the adjusting columns 6 in the triangular column shape can be mutually extruded in the rotating process to prevent rotation.

Specifically, the through hole 4b is elliptical, the lower end of the adjusting column 6 is cylindrical, and the lower end of the adjusting column 6 can move in the through hole 4 b. Adjust post 6 and can remove in through-hole 4b, when adjusting post 6 and progressively pushing down, adjust stopper 6a on the post 6 and can the straining on spacer 4, when removing spacer 4, adjust stopper 6a on the post 6 and break away from spacer 4, adjust post 6 and reset.

Specifically, at least two limiting grooves 2a are formed in the wrench base 2, limiting pieces 4a corresponding to the limiting grooves 2a are arranged on the positioning pieces 4, and the limiting pieces 4a are arranged in the sliding grooves and can slide in the limiting grooves 2 a. The limiting grooves 2a are positioned at two symmetrical sides of the wrench seat 2, the limiting pieces 4a are positioned at two symmetrical sides of the positioning pieces 4, and the positioning pieces 4 cannot deflect in the moving process, so that the positioning pieces 4 can only move on one straight line.

Specifically, canceling release mechanical system includes swivel becket 8, connect the copper wire 9, auxiliary wheel 10 and pressure spring 11, set up two symmetries on the spanner seat 2 and with the opening 2b of cavity intercommunication, the inner circle of swivel becket 8 has two engaging lugs 8a, engaging lug 8a stretches into in opening 2b and can move in opening 2b, auxiliary wheel 10 rotates and sets up on spanner seat 2, engaging lug 8a one side links to each other with spanner seat 2 through pressure spring 11, engaging lug 8a opposite side links to each other with spacer 4 through connecting copper wire 9, connecting copper wire 9 is rich and is established on auxiliary wheel 10. Clockwise or anticlockwise rotation swivel becket 8, swivel becket 8 pulls and connects copper wire 9 and drives spacer 4 and remove, and spacer 4 moves the back and buckles regulation post 6 on spacer 4 and resets, then loosens swivel becket 8, rotates and resets under the effect of pressure spring 11. Through in the design, can be convenient let adjust post 6 and reset. And the direction can be rotated at will, the adjusting column 6 can be reset, and the operation is convenient and simple.

Specifically, the rotating ring 8 has two anti-slip portions 8b thereon. The anti-slip part 8b is arranged, so that the anti-slip part can be conveniently used by workers, and is prevented from slipping during rotation.

Specifically, a hexagonal jack is formed in the rotary cylinder 3, and a magnetic block is arranged in the jack.

Specifically, the connecting rod is inserted into the jack and made of magnetic materials, the connecting rod comprises a first rod 12, a second rod 13 and a third rod 14, the first rod 12 is hinged to the second rod 13, the second rod 13 is hinged to the third rod 14, a first limiting sleeve 15 is sleeved on the first rod 12, the first limiting sleeve 15 can slide to the junction of the first rod 12 and the second rod 13, a second limiting sleeve 16 is sleeved on the second rod 13, and the second limiting sleeve 16 can slide to the junction of the second rod 13 and the third rod 14. After one end of the connecting rod is inserted into the jack, the connecting rod is attracted by the magnetic block, and the wrench seat 2 cannot fall off from the connecting rod in the operation and use process. The connecting rod can be bent, different lengths can be used in different environments, and the first bent rod 12 or the second bent rod 13 can serve as a force application part, so that the screw can be conveniently screwed or unscrewed. The first limiting sleeve 15 and the second limiting sleeve 16 can protect the connecting rod, under the linear state, the first limiting sleeve 15 protects the connecting part of the first connecting rod 12 and the second connecting rod 13, and the second limiting sleeve 16 protects the connecting part of the second connecting rod 13 and the third connecting rod 14, so that the service life of the connecting rod is prolonged.

Specifically, the second rod 13 and the third rod 14 are fixed with a limit ring 17. The limiting ring 17 can limit the lowest height of the first limiting sleeve 15 and the second limiting sleeve 16.

Specifically, the adjusting control mechanism comprises a moving plate 18 and a toothed column 19, the sliding piece I20 and the sliding piece II 21 are arranged on the rotating cylinder 3, two symmetrical sliding grooves I and two symmetrical sliding grooves II are formed in the moving piece 18, sliding lugs I18 a and sliding lugs II 18b are symmetrically arranged on the moving piece 18, the sliding lugs I18 a and the sliding lugs II 18b are respectively arranged in the sliding grooves I and the sliding grooves II, the sliding lugs I18 a penetrate through the sliding grooves I, the sliding lugs II 18b penetrate through the sliding grooves II, a through hole II 18c is formed in the middle of the moving piece 18, a tooth post 19 is fixed on the wrench seat 2, the tooth post 19 penetrates through the through hole II 18c, a groove I22 is formed in the sliding lugs I18 a, the sliding pieces I20 are slidably arranged in the groove I22, the sliding pieces I20 are connected with the bottoms of the groove I22 through springs I23, grooves II 24 are formed in the sliding lugs II 18b, the sliding pieces I20 are slidably arranged in the groove II 24, and the sliding pieces II 21 are; one end of the sliding sheet I20 is provided with a tooth I26 which can fasten the tooth column 19 when rotating clockwise, the sliding sheet II 21 is provided with a tooth II 27 which can fasten the tooth column 19 when rotating anticlockwise, and the rotating cylinder 3 is also provided with a limiting structure for limiting the movement of the moving sheet 18. Manually pressing the moving piece 18 to one end, enabling the sliding piece I20 on the moving piece 18 to abut against the tooth post 19 in the middle, enabling the tooth I26 on the sliding piece I20 to be meshed and fixed with the tooth post 19 in the clockwise rotating process of the rotating cylinder 3, enabling the rotating cylinder 3 to rotate to drive the upper wrench seat 2 to rotate together, enabling the tooth I26 on the sliding piece I20 to be stressed in the anticlockwise rotating process, enabling the sliding piece I20 to be separated from the tooth post 19, and enabling the tooth I26 to continue to be meshed with the tooth post 19 under the action of the spring I23 of the sliding piece I20 after the rotating is stopped. When the moving piece 18 is manually pressed to the other end, the second tooth 27 on the second sliding piece 21 abuts against the tooth post 19, at the moment, when the rotating cylinder 3 rotates anticlockwise, the second tooth 27 is meshed with the tooth post 19, the rotating cylinder 3 can drive the wrench seat 2 to rotate, when the rotating cylinder 3 rotates clockwise, the second sliding piece 21 is separated from the tooth post 19, and after the rotating is stopped, the second sliding piece 21 is continuously meshed with the tooth post 19. Through the mode, the screw can be conveniently screwed or unscrewed, the step of continuously and repeatedly sleeving the wrench cover 1 into the screw is not needed, and the use is convenient. When the moving piece 18 is pushed to one end, the limiting structure can limit the moving piece 18 and prevent the moving piece 18 from moving.

Specifically, the limiting structure comprises a sliding column 28, a sliding hole is formed in the rotating cylinder 3, the sliding column 28 is fixedly connected in the sliding hole through a spring III 30, a limiting opening 29 is formed in the moving piece 18, and the sliding column 28 can be clamped in the limiting opening 29. After the moving piece 18 is pushed to the preset position, the sliding column 28 slides into the limiting opening 29 through the second spring 25, the moving piece 18 is limited, after a larger force is used, the sliding column 28 can be pushed back into the sliding hole, and the moving piece 18 can move.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A wrench convenient to use comprises a wrench cover, a wrench seat and a rotating cylinder, wherein the wrench cover is fixed on the wrench seat, the rotating cylinder is rotatably arranged below the wrench seat, and the wrench is characterized in that the wrench cover is hollow, a cavity is arranged in the wrench seat, a positioning sheet is arranged in the wrench seat, the positioning sheet is fixed in the wrench seat through a plurality of tension springs I, a plurality of through holes I are formed in the positioning sheet, a plurality of adjusting columns are arranged in the wrench seat, the upper ends of the adjusting columns penetrate into the wrench cover, the upper ends of the adjusting columns are hexagonal columns, the adjusting columns are arranged in the wrench cover in a honeycomb shape, the lower ends of the adjusting columns penetrate into the through holes I, the lower ends of the adjusting columns are fixedly connected with the positioning sheet through tension springs II, the lower ends of the adjusting columns are provided with limiting blocks arranged at equal intervals, the limiting blocks can be fastened on the positioning sheet, and a resetting mechanism capable of resetting the adjusting columns is arranged, the wrench seat is internally provided with an adjusting control mechanism for controlling the rotatable direction of the wrench; the reset mechanism comprises a rotating ring, a connecting steel wire, an auxiliary wheel and a pressure spring, two symmetrical openings communicated with the cavity are formed in the wrench seat, two connecting lugs are arranged on the inner ring of the rotating ring and extend into the openings and can move in the openings, the auxiliary wheel is rotatably arranged on the wrench seat, one side of each connecting lug is connected with the wrench seat through the pressure spring, the other side of each connecting lug is connected with the positioning piece through the connecting steel wire, and the connecting steel wire is wound on the auxiliary wheel.

2. The wrench according to claim 1, wherein the upper end of the adjusting post is triangular.

3. The wrench according to claim 1, wherein the first through hole is oval, the lower end of the adjusting column is cylindrical, and the lower end of the adjusting column can move in the first through hole.

4. The wrench according to claim 1, wherein the wrench base has at least two limiting grooves formed therein, the positioning piece has a limiting piece corresponding to the limiting groove, and the limiting piece is disposed in the sliding groove and can slide in the limiting groove.

5. A wrench as claimed in claim 1, wherein the rotatable ring has two anti-slip portions.

6. The wrench as claimed in claim 1, wherein the rotating cylinder is provided with a hexagonal socket, and a magnetic block is disposed in the socket.

7. The wrench as claimed in claim 1, wherein the adjusting mechanism comprises a moving plate, a toothed column, a sliding plate I and a sliding plate II, the rotating cylinder is provided with a first sliding groove and a second sliding groove which are symmetrical, the moving plate is provided with a first sliding lug and a second sliding lug which are symmetrically arranged, the first sliding lug and the second sliding lug are respectively arranged in the first sliding groove and the second sliding groove, the first sliding lug penetrates out of the first sliding groove, the second sliding lug penetrates into the second sliding groove, a second through hole is arranged in the middle of the moving piece, the tooth column is fixed on the wrench seat and penetrates into the second through hole, the first sliding lug is provided with a first groove, the first sliding sheet is arranged in the first groove in a sliding manner and is connected with the bottom of the first groove through a first spring, a second groove is formed in the second sliding lug, the first sliding sheet is arranged in the second groove in a sliding mode, and the second sliding sheet is connected with the bottom of the second groove through a second spring; one end of the slip sheet is provided with a first tooth capable of fastening the tooth column when rotating clockwise, a second tooth capable of fastening the tooth column when rotating anticlockwise is arranged on the slip sheet, and the rotating cylinder is further provided with a limiting structure used for limiting the movement of the moving sheet.

8. The wrench convenient to use according to claim 7, wherein the limiting structure comprises a sliding column, the rotating cylinder is provided with a sliding hole, the sliding column is fixedly connected in the sliding hole through a spring III, the moving piece is provided with a limiting opening, and the sliding column can be clamped in the limiting opening.