CN108297015B

CN108297015B - Multi-specification wrench

Info

Publication number: CN108297015B
Application number: CN201711369302.6A
Authority: CN
Inventors: 李跃明
Original assignee: Hangzhou Great Star Tools Co Ltd
Current assignee: Hangzhou Great Star Tools Co Ltd
Priority date: 2017-12-18
Filing date: 2017-12-18
Publication date: 2020-04-28
Anticipated expiration: 2037-12-18
Also published as: CN108297015A

Abstract

The invention relates to a multi-specification wrench, which overcomes the defects that the existing fixed wrench has at most two specifications, the whole set of the fixed wrench is heavy in carrying weight, not convenient and high in price, and comprises the following components: the main body part, the movable part and the positioning device change the relative position of the movable part and the main body part or position different movable parts and main body parts, and the fixed component and the movable component can form clamping ports with different specifications. The fixed component on the main component and the movable component on the movable component form a clamping opening, and due to the arrangement of the positioning device, after the distance between the movable component and the fixed component is changed, the movable component can be locked relative to the main component, and the change of the distance enables the fixed component and the movable component to form clamping openings of different specifications, so that the number of the set wrenches is reduced, the carrying weight is reduced, and the whole set of price is also reduced.

Description

Multi-specification wrench

Technical Field

The invention relates to a wrench, in particular to a wrench with multiple specifications.

Background

The spanner is mainly used for screwing a screw or a nut and is divided into a fixed specification spanner and an adjustable spanner.

The adjustable spanner drives the movable part to move relative to the fixed part through the driving structure of the worm and gear to form different specifications, although the adjustable spanner has multiple specifications, the adjustable spanner needs to be adjusted among different specifications, the mode of worm gear transmission is easy to loosen, errors occur in the size, and the surface of a workpiece is easy to damage.

The fixed wrench has the advantages that the fixed wrench is fixed in size, workpieces of the same specification can only be operated, the fixed wrench is not easy to loosen relative to the adjustable wrench, errors cannot occur in size, and damage to the surface of the workpiece is avoided. However, two ends of one wrench are respectively provided with one specification, one fixed wrench is only provided with two specifications at most, and a plurality of wrenches in different specification series form one set, so that for the wrenches of metal products, the set of wrenches is heavy in carrying and inconvenient to carry, the price of the set of wrenches is higher, when workpieces in different sizes are operated, the wrenches in different specifications need to be replaced, and the use efficiency is not high.

Disclosure of Invention

The invention overcomes the defects that the existing fixed spanner has at most two specifications, the whole set of carried weight is large and inconvenient, and the whole set of price is high, and provides a multi-specification spanner.

The invention also overcomes the defects that when the existing spanner is used for operating in different specifications, different spanners are required to be exchanged, and the use efficiency is low, and provides the multi-specification spanner, one spanner is directly exchanged, so that the use efficiency is improved.

The specific technical scheme of the invention is as follows: a multi-specification wrench, comprising:

a main body part, the end part of which is provided with a fixed component part forming a clamping opening;

the movable component is connected with the main component, and the end part of the movable component is provided with a movable component which forms a clamping opening with the fixed component;

the positioning device is used for positioning the movable part and the main body part, changing the positioning positions of the movable part and the main body part or positioning different movable parts and main body parts, and the fixed component and the movable component can form clamping ports with different specifications.

The fixed component on the main body component and the movable component on the movable component form a clamping opening, and due to the arrangement of the positioning device, after the distance between the movable component and the fixed component is changed, the movable component can be locked relative to the main body component, and the change of the distance enables the fixed component and the movable component to form clamping openings with different specifications, so that the number of the set of wrenches is reduced, the carrying weight is reduced, and the price of the whole set is also reduced; the positioning device can realize the positioning of the movable part and the main body part and avoid the movement of the movable part relative to the main body part, and the positioning device can be of various structures as long as the movable component and the main body part are positioned and then the movable component and the main body part can be prevented from moving after the clamping opening is formed by the movable component and the fixed component.

Preferably, the positioning device comprises a continuous arc groove, the continuous arc groove at least comprises two locking positions, the two locking positions are communicated, and the positioning device can rotate by an angle to move from one locking position to the other locking position through the communication position. The continuous arc grooves indicate that the arc grooves are continuous, each arc groove corresponds to one locking position, the positioning device can continuously move in the continuous arc grooves, and the arrangement of the continuous arc grooves enables the clamping ports to have fixed specification and size after being changed; after the movable component moves in place relative to the main component, the movable component and the fixed component are combined to form a specification, and the movable component and the fixed component are not required to be adjusted by workers, so that the positioning function is achieved.

Preferably, the positioning device comprises a connecting column, the connecting column is provided with two parallel planes and two arc surfaces, when the planes are parallel to the length direction of the continuous arc groove, the movable part can move relative to the main body part, and when the planes are not parallel to the length direction of the continuous arc groove, the movable part can only rotate relative to the main body part. The flat has been constituteed on two planes of spliced pole, long portion has been constituteed to two arc surfaces, the thickness of long portion is greater than the thickness of flat, rotate the spliced pole, long portion corresponds with continuous arc groove length direction, the spliced pole can reach another locking position through the intercommunication position in continuous arc groove this moment, from a locking position, remove the locking position after, rotate the spliced pole, long portion is mutually perpendicular with continuous arc groove length direction, can prevent that the spliced pole from shifting from the locking position this moment.

Preferably, the positioning device adopts a primary and secondary pin mode, the connecting column is arranged on the primary pin, an internal threaded hole is formed in the center of the connecting column, the secondary pin is provided with an external thread, and the secondary pin is screwed into the primary pin to realize locking; or the positioning device adopts a T-shaped pin, the connecting column is positioned in the middle of the T-shaped pin, two ends of the T-shaped pin are anti-falling ends, and the width of the anti-falling end at one end is equal to that of the connecting column.

Preferably, the end of the body member is provided with a flange projecting toward the surface of the body member, the flange is the fixed component, the end of the movable member has a flat surface, the flat surface is the movable component, and the flat surface and the flange form a variable clamping opening with adjustable specification.

Preferably, the flange has three clamping edges, the angle between the three clamping edges being 120 °, the plane being directed towards the three clamping edges of the flange, the plane corresponding to four of the hexagonal sides of the flange.

Preferably, the end of the main body member is provided with a main body clamping opening, and the main body clamping opening penetrates through the main body member; the main body clamping opening is hexagonal.

Preferably, the continuous arc groove comprises three circular holes which are communicated with each other and arranged in a line, or the continuous arc groove comprises four circular holes which are communicated with each other and arranged in a line, and each circular hole is a locking position.

Preferably, the main body part has a fixed clamping opening on each side, the movable part has a fixed clamping opening on each side, and one fixed clamping opening of the movable part and one fixed clamping opening of the main body part correspond to one specification and size together and are used for each positioning hole. The movable part and the fixed part can form 4 specifications, namely, the initial two specifications are formed, the movable part can form two specifications after rotating once, and the specification number of the wrench is equal to 4 times of the number of the positioning holes.

Preferably, both ends of the main body part are provided with fixed components, both ends of the movable part are provided with movable components, the continuous arc groove and the positioning device are positioned in the middle positions of the main body part and the movable part, and after the movable part and the main body part are overlapped, the movable components and the fixed components are combined into the variable clamping opening. The continuous arc groove and the positioning device are positioned in the middle position, the two ends of the movable part are both movable components, and in the same locking position, after the movable part rotates 180 degrees relative to the main body part, the movable components at the two ends of the movable part and the corresponding fixed components form two different specifications.

Preferably, the main body part is one, the movable part is one, and the movable part is vertically attached to the main body part; the positioning device comprises a polygonal positioning column, a polygonal hole is formed in the movable part, and a rotating hole is formed in the main body part. The rotating hole can accommodate a polygonal positioning column, when the rotating hole is not locked, the main body part can rotate around the positioning column and rotate to the position, and the main body part and the movable part are locked after the fixed component part is matched with the movable component part.

Preferably, the opposite surfaces of the main component and the movable component are respectively provided with an arc-shaped groove and a reinforcing rib which can be matched with each other.

Preferably, the middle part of the main body part is provided with a long groove, the continuous arc groove is arranged at the side edge of the main body part, the movable part is arranged in the long groove, and the positioning device is positioned on the plane where the main body part and the movable part are positioned, penetrates through the main body part and the movable part and is locked.

The invention has the beneficial effects that: the fixed component on the main body component and the movable component on the movable component form a clamping opening, and due to the arrangement of the positioning device, after the distance between the movable component and the fixed component is changed, the movable component can be locked relative to the main body component, and the change of the distance enables the fixed component and the movable component to form clamping openings with different specifications, so that the number of the set of wrenches is reduced, the carrying weight is reduced, and the price of the whole set is also reduced; the positioning device is used for positioning to prevent the movable part from moving relative to the main body part, and can be of various structures, so long as the movable part and the main body part are ensured to be in a locking position, and the movable component and the main body part can be prevented from moving after the movable component and the fixed component form a clamping opening.

Drawings

FIG. 1 is a schematic diagram of one configuration of the present invention;

FIG. 2 is a side cross-sectional view of the structure of FIG. 1 in accordance with the present invention;

FIG. 3 is an exploded view of the structure of FIG. 1 in accordance with the present invention;

FIG. 4 is a two state diagram of a first locking bit of the configuration of FIG. 1 in accordance with the present invention;

FIG. 5 is a two state diagram of a second locking position of the configuration of FIG. 1 in accordance with the present invention;

FIG. 6 is a two state diagram of a third locking position of the configuration of FIG. 1 in accordance with the present invention;

FIG. 7 is a schematic diagram of a structure having two locking positions according to the present invention;

FIG. 8 is a schematic diagram of a four locking position configuration of the present invention;

FIG. 9 is a schematic view of a dual motion device according to the present invention;

FIG. 10 is an exploded view of the present invention employing a second positioning device;

FIG. 11 is a schematic diagram of the combination of the structures shown in FIG. 10 according to the present invention;

FIG. 12 is a schematic structural view of a ring-shaped body member of the present invention;

FIG. 13 is a front view of the structure of FIG. 12 in accordance with the present invention;

FIG. 14 is a schematic view of a single-ended configuration of the present invention;

FIG. 15 is a schematic view of a variation of the positioning device of the present invention;

in the figure: 1. the clamping device comprises a first clamping opening, a second clamping opening, a main body part, a movable part, a first clamping opening, a second clamping opening, a female pin, a male pin, a secondary pin, a second clamping opening, a toggle spring, a toggle steel ball, a flange, a groove, 11, an arc-shaped groove, a reinforcing rib, 13, a continuous arc groove, 14, a connecting hole, 15, a connecting column, 16, a fixed clamping opening, 17, a first movable part, 18, a second movable part, 19, a T-shaped pin, 20, a T-shaped head, 21, a long groove, 22, a positioning column, 23, a polygonal hole.

Detailed Description

The invention is further described by the following specific embodiments in conjunction with the accompanying drawings.

Example 1: a multi-size wrench (see fig. 1, 2, and 3) comprising: a main body part 2, a movable part 3 and a positioning device.

The main body part is a strip shape with equal thickness, the middle part of the main body part is provided with a continuous arc groove 13, the continuous arc groove comprises three round holes which are communicated with each other and arranged in a line, the width of the communicated part is less than the diameter of the round hole, and each round hole is a locking position. The movable part and the main body part are arranged in parallel, the middle part of the movable part is provided with a connecting hole 14, the connecting hole corresponds to the continuous arc groove, and the movable part and the main body part are locked by a positioning device. In this embodiment, positioner adopts the mode that adopts the primary and secondary pin, the locking back of primary and secondary pin, main part and movable part surface keep the parallel and level, primary pin 5 includes circular end and spliced pole 15, the center of spliced pole is provided with the internal thread hole, the spliced pole has two parallel planes and two arc surfaces, the flat portion has been constituteed on two parallel planes of spliced pole, long portion has been constituteed to two arc surfaces, the thickness of long portion is greater than the thickness of flat portion, the thickness of flat portion is less than the width at continuous arc groove intercommunication position, the diameter of long portion and the diameter looks adaptation of continuous arc groove locking position round hole. The female pin is inserted into the connecting hole, the connecting hole is a counter bore, the superior hole is a round hole and is matched with the round end, the inferior hole is a rectangular hole and is matched with the connecting column, and the length direction of the rectangular hole is perpendicular to that of the movable component. After the female pin is matched with the movable part, the plane of the connecting column is perpendicular to the length direction of the movable part, and the female pin rotates along with the movable part when the movable part is rotated. When the connecting column is located the locking position in continuous arc groove, the movable part can rotate relative to the main part and can not move, when the movable part rotates to be perpendicular to the main part, the connecting column just corresponds to the communicating position in continuous arc groove, at the moment, the movable part can move along continuous arc groove relative to the main part, and the connecting column moves from one locking position to another locking position.

The two ends of the main body part are respectively provided with a first clamping opening 1 and a second clamping opening 4 which are both hexagons, the two ends of the main body part are provided with flanges 9 protruding towards the surface of the main body part, the flanges are fixed components, the end part of the movable part is provided with a plane, the plane is the movable component, and the plane and the flanges form a variable clamping opening with adjustable specification. The flange is provided with three clamping edges, the included angle between the three clamping edges is 120 degrees, the plane faces to the three clamping edges of the flange, and the plane and the three clamping edges of the flange correspond to four edges of a hexagon. As the movable part changes position relative to the main body part, the distance between the plane and the flange changes, and clamping openings with different specifications are formed.

The surface of the main body part opposite to the movable part is provided with a convex arc-shaped reinforcing rib 12, the surface of the corresponding movable part is provided with an arc-shaped groove 11, the reinforcing ribs are arranged twice, the two reinforcing ribs are respectively arranged at the two ends of the continuous arc-shaped groove, the number of the arc-shaped grooves is 6, and the two sides of the connecting hole are respectively 3. The arc-shaped groove and the reinforcing rib are in shapes, so that when the movable part is transferred to any locking position of the continuous arc groove relative to the main body part, the arc-shaped groove can be matched with the reinforcing rib.

The surface of the main body part facing the movable part is also provided with small holes, a toggle spring 7 and a toggle steel ball 8 are arranged in the small holes, the positions of the movable part corresponding to the small holes are provided with grooves 10, and the size of the grooves can cover the movement range of the toggle steel ball after the movable part moves relative to the main body part.

The distance between the planes at the two ends of the movable part and the center of the connecting hole is different, after the movable part and the main body part are locked at one locking position, and the movable part rotates 180 degrees relative to the main body part, the planes at the end parts of the movable part and the corresponding flanges are combined into two specifications of clamping openings.

The surface of the movable part is marked, and by taking fig. 4, fig. 5 and fig. 6 as an example, the surfaces of the two ends of the movable part are respectively marked with a and B, and the corresponding relation of the orientation in the drawing is described, referring to fig. 4a, the movable part is locked at the uppermost locking position relative to the main body part, the plane of the end a of the movable part and the flange at the upper end of the main body part are opposite to form a first clamping opening, and the plane of the end B of the movable part and the flange at the lower end of the main body part are opposite to form a second. Referring to fig. 4B, the movable member is rotated 180 ° relative to the body member, the flat surface of the end B of the movable member is opposed to the flange at the upper end of the body member to form a third clamping opening, and the flat surface of the end a of the movable member is opposed to the flange at the lower end of the body member to form a fourth clamping opening. Referring to fig. 5c, the movable member is locked in a locked position relative to the body member, the plane of the end a of the movable member is opposite to the flange at the upper end of the body member to form a fifth clamping opening, and the plane of the end B of the movable member is opposite to the flange at the lower end of the body member to form a sixth clamping opening. Referring to fig. 5d, the movable member is rotated 180 ° relative to the body member, with the flat surface of the end B of the movable member facing the flange at the upper end of the body member forming a seventh gripping opening and the flat surface of the end a of the movable member facing the flange at the lower end of the body member forming an eighth gripping opening. Referring to fig. 6e, the movable member is locked at the lowest locking position relative to the main body member, the plane of the end a of the movable member is opposite to the flange at the upper end of the main body member to form a ninth clamping opening, and the plane of the end B of the movable member is opposite to the flange at the lower end of the main body member to form a tenth clamping opening. Referring to fig. 6f, the movable member is rotated 180 ° relative to the body member, the flat surface of the end B of the movable member is opposite the flange at the upper end of the body member to form an eleventh gripping opening, and the flat surface of the end a of the movable member is opposite the flange at the lower end of the body member to form a twelfth gripping opening. Thus, the wrench of the embodiment can form twelve clamping openings in total.

Example 2: a multi-specification wrench (see fig. 7) which is different from embodiment 1 in that: the continuous arc groove 13 on the main body part is communicated by two round holes to form 2 locking positions. A total of 8 gauge clamping ports can be formed. The rest of the structure is referred to example 1.

Example 3: a multi-specification wrench (see fig. 8) which is different from embodiment 1 in that: the continuous arc grooves 13 on the main body part are communicated by four round holes to form 4 locking positions. A total of 16 gauge clamping ports can be formed. The rest of the structure is referred to example 1.

Example 4: a multi-specification wrench (see fig. 9) which is different from embodiment 1 in that: the number of the main body part 2 is one, and the number of the movable parts 3 is two, namely a first movable part 17 and a second movable part 18, wherein the two movable parts are respectively arranged on two sides of the main body part. A polygonal hole 23 is arranged in the middle of the movable part, and a rotating hole 24 is arranged on the main body part. The positioning device adopts a primary pin and a secondary pin, the primary pin comprises a polygonal positioning column 22, the positioning column is matched with the polygonal hole, the polygonal positioning column can be accommodated in the rotating hole, a threaded hole is formed in the axis of the positioning column, an external thread is arranged on the secondary pin, and the movable part and the main part can be locked by screwing the secondary pin and the primary pin. When the locking mechanism is not locked, the main body part can rotate around the positioning column and rotate to the position, and the main body part and the movable part are locked after the fixed component and the movable component are matched. Each movable part is also provided with a fixed clamping opening 16 near the two ends, the main body part is also provided with a fixed clamping opening near the two ends, the specifications of the fixed clamping openings are all different, and the embodiment can form 14 specifications in total. The main body part and the movable part in the embodiment are not provided with reinforcing ribs and arc-shaped grooves, and the rest of the structure is as shown in the embodiment.

Example 5: a multi-specification wrench (see fig. 10) which is different from embodiment 1 in that: the locating device of this embodiment adopts T shape pin 19, and spliced pole 15 is in the middle part of T shape pin, and the both ends of T shape pin are anticreep end, refer to the position in the picture, and the anticreep end of upper end is circular, and the anticreep end of lower extreme is the T shape head 20 of in-line, and the width of the anticreep end of lower extreme equals with the width of spliced pole, and the length of the T shape head of in-line is greater than the diameter of the round hole of continuous arc groove. The rest of the structure is referred to example 1.

The movable part is rotated, the movable part is perpendicular to the main body part (see fig. 11), the movable part can move relative to the main body part, after the movable part is moved in place, the movable part is rotated to enable the movable part and the main body part to be overlapped, and the movable part and the main body part cannot move relatively in the vertical direction when locked.

Example 6: a multi-specification spanner (see fig. 12) adopts a structure between a movable part and an active part, a long groove 21 is arranged in the middle of a main part, a continuous arc groove is arranged at the side position of the main part, the continuous arc groove is communicated with the long groove, the movable part is positioned in the long groove, and a positioning device is positioned on the plane where the main part and the movable part are positioned, penetrates through the main part and the movable part and locks the movable part and the main part. The position of the end part of the main body component is a fixing component (see figure 13), and hexagonal holes are formed at two ends of the long groove. The movable part is in a strip shape, the positioning device is in a column shape, the positioning device is perpendicular to the movable part, connecting columns are arranged at two ends of the positioning device and extend out of two sides of the movable part, and the connecting columns are matched with the continuous arc grooves. The present embodiment has a total of 12 specifications.

Example 7: a multi-specification wrench (see fig. 14) is different from embodiment 1 in that: the continuous arc groove and the positioning device are arranged at one end of the main body component and one end of the movable component, the other end of the main body component is provided with the fixed component, and the other end of the movable component is a plane. The present embodiment has a total of 3 specifications. The rest of the structure is referred to example 1.

Example 8: a multi-specification wrench (see fig. 15) which is different from embodiment 1 in that: the continuous arc groove is arranged in the middle of the movable part, and the connecting hole is arranged in the middle of the main body part. The rest of the structure is referred to example 1.

The above description is only exemplary embodiments of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalents of the above embodiments according to the technical spirit of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A multi-specification wrench, comprising:

the positioning device is used for positioning the movable part and the main body part, changing the positioning positions of the movable part and the main body part or positioning different movable parts and main body parts, the fixed component and the movable component can form clamping ports with different specifications, the positioning device comprises a connecting column and a continuous arc groove, the continuous arc groove at least comprises two locking positions, the two locking positions are communicated, the positioning device can rotate for an angle and then can move from one locking position to the other locking position through the communicating position, the connecting column is provided with two parallel planes and two arc surfaces, when the planes are parallel to the length direction of the continuous arc groove, the movable part can move relative to the main body part, and when the planes are not parallel to the length direction of the continuous arc groove, the movable part can only rotate relative to the main body part;

the two sides of the main body part are respectively provided with a fixed clamping opening, the two sides of the movable part are respectively provided with a fixed clamping opening, and one fixed clamping opening of the movable part and one fixed clamping opening of the main body part correspond to one specification and size together.

2. The multi-specification wrench according to claim 1, wherein the positioning device is in the form of a master-slave pin, the connecting column is arranged on the master pin, the center of the connecting column is provided with an internal threaded hole, the slave pin is provided with an external thread, and the slave pin is screwed into the master pin to realize locking; or the positioning device adopts a T-shaped pin, the connecting column is positioned in the middle of the T-shaped pin, two ends of the T-shaped pin are anti-falling ends, and the width of the anti-falling end at one end is equal to that of the connecting column.

3. A multi-specification spanner according to claim 1 wherein the end of the body member is provided with a flange projecting toward the surface of the body member, the flange being said fixed component, the end of the movable member having a flat surface which is said movable component, the flat surface and the flange forming a variable clamping opening of adjustable specification.

4. A multi-specification spanner according to claim 3 wherein the flange has three gripping edges, the three gripping edges being at an angle of 120 ° to one another, the plane being directed towards the three gripping edges of the flange, the plane corresponding to four of the hexagonal shapes of the three gripping edges of the flange.

5. A multi-specification spanner according to claim 1, wherein the end of the main body member is provided with a main body holding opening which penetrates the main body member; the main body clamping opening is hexagonal.

6. A multi-specification spanner according to claim 1 wherein the continuous arc slot comprises three circular holes in a line arrangement in communication with each other, or the continuous arc slot comprises four circular holes in a line arrangement in communication with each other, each circular hole being a locking position.

7. A multi-specification spanner according to claim 1, 3, 4, 5 or 6 wherein the fixed components are provided at both ends of the main body member, the movable components are provided at both ends of the movable member, the positioning means is located at the intermediate position between the main body member and the movable member, and the movable components and the fixed components are combined into the variable clamping opening after the movable member and the main body member are overlapped.

8. The multi-specification spanner according to claim 1, 3, 4 or 5, wherein the number of the main body parts is one, the number of the movable parts is one, and the movable parts are attached to the main body parts up and down; the positioning device comprises a polygonal positioning column, a polygonal hole is formed in the movable part, and a rotating hole is formed in the main body part.

9. A multi-specification spanner according to claim 1 or 3 or 4 or 5 or 6 wherein the opposed surfaces of the main and movable parts are provided with mutually engageable arcuate slots and ribs, respectively.

10. A multi-specification spanner according to claim 1 or 6, wherein the main body member has an elongated slot at a middle portion thereof, the continuous arc slot is provided at a side of the main body member, the movable member is located in the elongated slot, and the positioning means is located on a plane where the main body member and the movable member are located, penetrates through the main body member and the movable member, and is locked.