CN215548261U

CN215548261U - Multi-specification wrench

Info

Publication number: CN215548261U
Application number: CN202120790382.8U
Authority: CN
Inventors: 李跃明
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Industrial Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-01-18
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a multi-specification wrench, which comprises a wrench body, wherein a wrench hole is formed in the end part of the wrench body, a rotating piece is rotatably connected to the wrench body, a plurality of abutting surfaces are arranged on the rotating piece in the circumferential direction, at least one abutting surface on the rotating piece is positioned in the wrench hole, and a rotating positioning mechanism is arranged between the rotating piece and the wrench body. According to the wrench, the vertical distances between the abutting surfaces on the rotating piece and the rotating center of the rotating piece are different, the rotating piece is rotated, so that different abutting surfaces on the rotating piece enter the wrench hole, polygonal holes with different specifications and sizes are formed between the abutting surfaces on the rotating piece and the inner wall surface of the wrench hole, the wrench can be matched with hexagonal bolts with different specifications and sizes, the wrench can be applied to bolts with various specifications, the functions are comprehensive, and the use is convenient.

Description

Multi-specification wrench

Technical Field

The utility model relates to the technical field of hardware tools, in particular to a multi-specification wrench.

Background

A hexagonal wrench is a common hardware tool used for screwing a hexagonal bolt. The existing hexagonal wrench comprises a wrench body, and wrench holes with specific specifications are respectively arranged at two ends of the wrench body. The existing hexagonal wrench has the following defects: the size and specification of the wrench hole arranged on the wrench body are fixed, one wrench hole can only be matched with a hexagon bolt with one specification, the functions are incomplete, and the wrench is inconvenient to use.

Such as: the utility model discloses a Chinese patent publication No. CN201856189U, which is a porous external hexagonal wrench, and the hexagonal wrench has the disadvantages that: the size and the specification of the hexagonal hole arranged on the hexagonal bolt fixing device are fixed, one hexagonal hole can only be matched with a hexagonal bolt with one specification, the function is incomplete, and the hexagonal bolt fixing device is inconvenient to use.

Disclosure of Invention

The utility model aims to solve the problems that in the existing hexagonal wrench, because the size and the specification of the wrench hole arranged on the hexagonal wrench are fixed, one wrench hole can only be matched with a hexagonal bolt with one specification, the function is incomplete, and the use is inconvenient, and provides a multi-specification wrench which can effectively solve the problems.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a many specifications spanner, includes the spanner body, and the tip of spanner body is provided with the spanner hole, rotates on the spanner body and is connected with the rotating member, and the circumference of rotating member is provided with a plurality of and supports and lean on the face, has at least one to support to lean on the face to be located the spanner hole on the rotating member, is provided with rotational positioning mechanism between rotating member and the spanner body.

According to the wrench, the vertical distances between the abutting surfaces on the rotating piece and the rotating center of the rotating piece are different, the rotating piece is rotated, so that different abutting surfaces on the rotating piece enter the wrench hole, polygonal holes with different specifications and sizes are formed between the abutting surfaces on the rotating piece and the inner wall surface of the wrench hole, the wrench can be matched with hexagonal bolts with different specifications and sizes, the wrench can be applied to bolts with various specifications, the functions are comprehensive, and the use is convenient.

Preferably, the wrench hole is a hexagonal hole.

Preferably, the rotary positioning mechanism comprises a mounting hole arranged on the wrench body, a rotary positioning shaft is connected in the mounting hole, a first external spline and a second external spline are arranged on the side surface of the rotary positioning shaft, and a first spline groove and a second spline groove are arranged in the mounting hole; the rotating piece can be connected to the rotating positioning shaft in a sliding mode, and the wrench body is provided with an accommodating groove for accommodating the rotating piece; a spring is arranged between the rotary positioning shaft and the wrench body. When the rotary positioning shaft is pressed downwards, the rotary positioning shaft can axially slide along the mounting hole, and after the rotary positioning shaft is loosened, the rotary positioning shaft resets under the action of the spring. Under normal conditions, a first external spline on the rotary positioning shaft is matched with a first spline groove in the mounting hole, a second external spline on the rotary positioning shaft is matched with a second spline groove in the mounting hole, and the rotary positioning shaft cannot rotate, so that the rotary piece is fixed at a certain angular position; when pressing the rotational positioning axle, the epaxial first external spline of rotational positioning and the epaxial first external spline of second external spline all remove towards a direction, at this in-process, first external spline breaks away from with first spline groove, second external spline and second spline groove break away from, the rotational positioning axle can rotate in the mounting hole this moment, just so can rotate the rotating member, when the rotating member rotates to required angular position, loosen the rotational positioning axle, the rotational positioning axle moves under the effect of spring and resets this moment, first external spline and second external spline again with first spline groove and the cooperation of second spline groove, make the unable rotation of rotational positioning axle, thereby make the rotating member fix at this angular position.

Preferably, the rotating member is provided with a connecting hole, and a third spline groove matched with the second external spline is formed in the connecting hole in the circumferential direction. The second external spline on the rotational positioning shaft is always matched with the third spline groove on the rotating piece, and the rotating piece can only move along the axial direction of the rotational positioning shaft and cannot rotate relatively between the second external spline and the third spline groove.

Preferably, the axial length of the second male spline is less than the distance between the first spline groove and the second spline groove.

Preferably, the rotational positioning shaft comprises a rod part and a head part, the diameter of the head part is larger than that of the rod part, and the first external spline and the second external spline are arranged on the side surface of the rod part.

Preferably, the head and the shaft are connected by a bolt.

Preferably, the number of the first spline grooves and the second spline grooves is the same as the number of the abutting surfaces on the rotating member. The number of first spline groove, second spline groove is the same with the number of the face that supports on the rotating member, and the rotating member just corresponds on the rotating member and rotates one and support and lean on the face for every turn of a first spline groove or second spline groove.

Preferably, the rotating member is provided with a protrusion protruding from a side surface of the wrench body. The user drives the rotating piece to rotate by poking the protruding part with the fingers.

Preferably, the height of the protrusion from the side of the wrench body is greater than or equal to 3 mm. The height of the protruding part protruding out of the side face of the wrench body is more than or equal to 3 millimeters, so that an operator can conveniently stir the rotating piece by hands.

The utility model has the beneficial effects that: according to the wrench, the vertical distances between the abutting surfaces on the rotating piece and the rotating center of the rotating piece are different, the rotating piece is rotated, so that different abutting surfaces on the rotating piece enter the wrench hole, polygonal holes with different specifications and sizes are formed between the abutting surfaces on the rotating piece and the inner wall surface of the wrench hole, the wrench can be matched with hexagonal bolts with different specifications and sizes, the wrench can be applied to bolts with various specifications, the functions are comprehensive, and the use is convenient.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the rotating member.

Fig. 3 is a schematic structural view of the rotational positioning shaft.

Fig. 4 is a cross-sectional view of the present invention.

Fig. 5 is a partial structural schematic view of the wrench body.

FIG. 6 is a schematic view of the present invention in cooperation with a hex bolt of one of the specifications.

Fig. 7 is a schematic view of the present invention in cooperation with a hexagonal bolt of another specification.

In the figure: 1. spanner body, 2, spanner hole, 3, rotating part, 4, rotational positioning axle, 5, support the face, 6, connecting hole, 7, third spline groove, 8, first external spline, 9, second external spline, 10, spring, 11, holding tank, 12, first spline groove, 13, second spline groove, 14, hex bolts, 15, first internal face, 16, second internal face, 17, third internal face.

Detailed Description

The utility model is further described by the following detailed description in conjunction with the accompanying drawings.

Example 1:

as shown in fig. 1 to 5, a multi-specification wrench includes a wrench body 1. The end of the wrench body 1 is provided with a wrench hole 2. The wrench hole 2 is a hexagonal hole. The wrench body 1 is rotatably connected with a rotating member 3. A plurality of abutment surfaces 5 are provided circumferentially of the rotary member 3. At least one abutting surface of the rotating member 3 is positioned in the wrench hole 2. A rotary positioning mechanism is arranged between the rotating piece 3 and the wrench body 1.

The rotary positioning mechanism comprises a mounting hole arranged on the wrench body 1, and a rotary positioning shaft 4 is connected in the mounting hole. The rotational positioning shaft 4 comprises a shaft portion and a head portion, the diameter of the head portion being larger than the diameter of the shaft portion. The head part is connected with the rod part through a bolt. The side of the rod part is provided with a first external spline 8 and a second external spline 9, and the first external spline 8 and the second external spline 9 are arranged up and down. The mounting hole is provided with a first spline groove 12 and a second spline groove 13. The first spline groove 12 and the second spline groove 13 are arranged up and down in the mounting hole. The number of the first spline grooves 12 and the second spline grooves 13 is the same as the number of the abutting surfaces on the rotary member 3. The axial length of the second external spline 9 is smaller than the distance between the first spline groove 12 and the second spline groove 13. The minimum distance between the first external spline 8 and the second external spline 9 is greater than the axial length of the first spline groove 12. The rotary member 3 is slidably connected to a rotational positioning shaft 4. The rotating member 3 is provided with a connecting hole 6, and a third spline groove 7 matched with the second external spline 9 is arranged in the circumferential direction of the connecting hole 6. The second external spline 9 on the rotational positioning shaft 4 is always matched with the third spline groove 7 on the rotating piece 3, and the rotating piece 3 can only move along the axial direction of the rotational positioning shaft and cannot rotate relatively between the two. Each supports all to lean on face 5 and the connecting hole center on the rotating member 3 and all is different, is provided with the holding tank 11 that is used for placing rotating member 3 on the spanner body 1. A spring 10 is connected between the head and the wrench body 1. The rotating member 3 is provided with a protruding part protruding from the side surface of the wrench body 1. The height of the bulge part protruding out of the side face of the wrench body is more than or equal to 3 mm. The user drives the rotating piece to rotate by poking the protruding part with the fingers.

When the rotary positioning shaft is pressed downwards, the rotary positioning shaft can axially slide along the mounting hole, and after the rotary positioning shaft is loosened, the rotary positioning shaft resets under the action of the spring. Under normal conditions, a first external spline on the rotary positioning shaft is matched with a first spline groove in the mounting hole, a second external spline on the rotary positioning shaft is matched with a second spline groove in the mounting hole, and the rotary positioning shaft cannot rotate, so that the rotary piece is fixed at a certain angular position; when pressing the rotational positioning axle, the epaxial first external spline of rotational positioning and the epaxial first external spline of second external spline all remove towards a direction, at this in-process, first external spline breaks away from with first spline groove, second external spline and second spline groove break away from, the rotational positioning axle can rotate in the mounting hole this moment, just so can rotate the rotating member, when the rotating member rotates to required angular position, loosen the rotational positioning axle, the rotational positioning axle moves under the effect of spring and resets this moment, first external spline and second external spline again with first spline groove and the cooperation of second spline groove, make the unable rotation of rotational positioning axle, thereby make the rotating member fix at this angular position.

As shown in figures 6 and 7, when the hexagonal bolt is matched with a large-size hexagonal bolt in use, the corresponding abutting surface on the rotating piece is rotated into the wrench hole and is parallel to the third inner wall surface 17 in the wrench hole, and the vertical distance between the abutting surface and the center of the connecting hole is small, so that a large hexagonal hole can be formed between the abutting surface and five inner wall surfaces in the wrench hole and can be matched with the large-size hexagonal bolt. When the wrench hole is fitted with a large-sized hexagon bolt, the first inner wall surface 15, the second inner wall surface 16 and the abutting surface in the wrench hole are simultaneously in contact abutment with the hexagon bolt.

When the hexagonal bolt is matched with a hexagonal bolt with a smaller specification, the corresponding abutting surface on the rotating piece is rotated into the wrench hole, the vertical distance between the abutting surface and the center of the connecting hole is larger, and therefore a smaller hexagonal hole can be formed between the abutting surface and five inner wall surfaces in the wrench hole and can be matched with the hexagonal bolt with the smaller specification. When the wrench is matched with a small-specification hexagon bolt, any one of the first inner wall surface and the second inner wall surface in the wrench hole, the third inner wall surface and the abutting surface are simultaneously contacted and abutted with the hexagon bolt.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a many specifications spanner, includes the spanner body, the tip of spanner body is provided with wrench hole, its characterized in that: the spanner body is connected with the rotating member in a rotating mode, a plurality of abutting surfaces are arranged on the rotating member in the circumferential direction, at least one abutting surface is located in the spanner hole, and a rotating positioning mechanism is arranged between the rotating member and the spanner body.

2. A multi-specification wrench as claimed in claim 1, wherein said wrench socket is a hexagonal socket.

3. The multi-specification wrench according to claim 1, wherein the rotational positioning mechanism includes a mounting hole provided on the wrench body, a rotational positioning shaft is connected in the mounting hole, a first external spline and a second external spline are provided on a side surface of the rotational positioning shaft, and a first spline groove and a second spline groove are provided in the mounting hole; the rotating piece can be connected to the rotating positioning shaft in a sliding mode, and the wrench body is provided with an accommodating groove for accommodating the rotating piece; a spring is arranged between the rotary positioning shaft and the wrench body.

4. A multi-specification spanner according to claim 3 wherein the rotary member is provided with a connecting hole, and the connecting hole is circumferentially provided with a third spline groove for engaging with the second external spline.

5. A multi-specification wrench according to claim 3, wherein the axial length of the second male spline is less than the distance between the first spline groove and the second spline groove.

6. A multi-specification wrench as claimed in claim 3, wherein the rotational positioning shaft comprises a shank and a head, the head having a diameter greater than the shank, the first and second external splines being disposed on the sides of the shank.

7. A multi-specification spanner according to claim 6 wherein the head portion is connected to the shank portion by a bolt.

8. A multi-specification spanner according to claim 3, wherein the number of the first spline grooves and the second spline grooves is the same as the number of the abutting faces on the rotary member.

9. A multi-specification spanner according to claim 1, 2, 3, 4, 5, 6, 7 or 8 wherein the rotary member is provided with a projection projecting from the side of the spanner body.

10. A multi-specification spanner according to claim 9 wherein the height of the projection from the side of the spanner body is 3 mm or more.