CN211761094U

CN211761094U - Novel sleeve for wrench

Info

Publication number: CN211761094U
Application number: CN201922222228.6U
Authority: CN
Inventors: 刘建利; 李海兵; 缪小兵; 马英健; 封阳春
Original assignee: Jiangsu Ruilitai Railway Technology Co ltd
Current assignee: Jiangsu Ruilitai Railway Technology Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-10-27
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a novel sleeve for spanner belongs to extracting tool technical field. The novel sleeve for the wrench comprises a sleeve body, wherein one end of the sleeve body is provided with an occlusion hole, and the other end of the sleeve body is provided with an insertion hole; one end of the sleeve body close to the occlusion hole is provided with a first inverted conical surface which is positioned at the outer edge of the occlusion hole; a plurality of first inclined planes are uniformly arranged on the first inverse conical surface along the clockwise direction, and a plurality of second inclined planes are uniformly arranged along the anticlockwise direction; the first inverse conical surface is also provided with a plurality of grooves, and the grooves correspond to the edges and corners of the occlusion holes. The first inverted conical surface can play a role in guiding so that the bolt or the nut can be automatically centered; when the sleeve body is rotated clockwise or anticlockwise, the end face of the nut can rotate along the edge of the first inclined face or the second inclined face, the edge of the nut corresponds to the edge of the occlusion hole one by one, and then the nut automatically slides into the occlusion hole.

Description

Novel sleeve for wrench

Technical Field

The utility model relates to a extracting tool technical field, in particular to novel sleeve for spanner.

Background

The wrench socket is particularly suitable for screwing a bolt or a nut with a very narrow or deep depression position, one end of the wrench socket is an insertion end used for assembling and connecting a driving wrench, the other end of the wrench socket is an operation end used for driving the bolt, the insertion end is provided with an insertion hole matched with the driving wrench, and the operation end is provided with a hexagonal hole or a dodecagonal hole matched with the bolt.

The existing wrench sleeve has poor guidance, when in use, the hexagonal hole at the operation end needs to be in one-to-one correspondence with the edge and the angle of the bolt or the nut, the bolt or the nut can enter the hexagonal hole only after being operated for many times, the working efficiency is low, the labor intensity is high, and the wrench sleeve is not suitable for loosening and tightening bolts or nuts in batches.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel sleeve for spanner to it is poor to solve the telescopic direction performance of current spanner, needs to aim at many times with bolt or nut, problem that work efficiency is low, intensity of labour is big.

In order to solve the technical problem, the utility model provides a novel wrench socket, which comprises a socket body, wherein one end of the socket body is provided with an occlusion hole, and the other end is provided with an insertion hole matched with the tail end of the wrench; a first inverted conical surface is formed at one end, close to the occlusion hole, of the sleeve body, and the first inverted conical surface is located at the outer edge of the occlusion hole; a plurality of first inclined planes are uniformly formed on the first inverted conical surface along the clockwise direction, a plurality of second inclined planes are uniformly formed on the first inverted conical surface along the anticlockwise direction, and the intersection of each first inclined plane and the corresponding second inclined plane is the edge angle of the occlusion hole; the first reverse taper surface is also provided with a plurality of grooves, and the grooves correspond to the edges and corners of the occlusion holes.

Optionally, a second inverse tapered surface is formed at each of the first inclined surface and the second inclined surface and located on the first inverse tapered surface.

Optionally, the edge of the occlusion hole is provided with a first guide groove along the length direction of the sleeve body.

Optionally, the inner wall of the guide groove is arc-shaped.

Optionally, transition fillets are formed at the joints of the first reverse taper surface, the first inclined surface, the second inclined surface, the groove and the second reverse taper surface.

Optionally, a third reverse conical surface is formed at one end of the sleeve body, which is located at the insertion hole.

Optionally, the edges and corners of the insertion holes are provided with second guide grooves along the length direction of the sleeve body.

Optionally, the inner wall of the second guide groove is arc-shaped.

Optionally, a spring is arranged in the occlusion hole, and one end of the spring is fixedly connected with the bottom of the occlusion hole.

Optionally, the spring is a special-shaped spring, a flange and a groove are respectively arranged at one end of the occlusion hole close to the insertion hole, and the bottom of the spring is clamped in the groove.

The utility model provides a pair of novel sleeve for spanner has following beneficial effect:

(1) when the bolt or the nut is sleeved in the occlusion hole, the first inverted conical surface can play a role in guiding so that the bolt or the nut is automatically centered;

(2) the first inverse conical surface is uniformly provided with a plurality of first inclined planes clockwise, a plurality of second inclined planes anticlockwise, the intersection of each first inclined plane and the corresponding second inclined plane is the edge angle of the occlusion hole, when the sleeve body is rotated clockwise or anticlockwise, the end surface of the nut can automatically rotate along the edge of the first inclined plane or the second inclined plane, so that the edges of the nut correspond to the corners of the occlusion hole one by one, and the nut automatically slides into the occlusion hole;

(3) when the sleeve body is rotated to fall into the occlusion hole, the groove can block the edge of the nut, so that the edge of the nut corresponds to the edge angle of the occlusion hole, and the deviation rectifying performance of the sleeve for the wrench is improved;

(4) the slopes of the edges of the first inclined plane and the second inclined plane are larger than 0.5, and the arrangement of the transition fillets can avoid the phenomenon that a tip is formed on the first reverse conical surface to influence the service life;

(5) the second inverted cone-shaped surface and the first inverted cone-shaped surface act together, and the automatic centering performance of the wrench socket on the bolt or the nut is greatly improved.

Drawings

Fig. 1 is a schematic structural view of a novel wrench socket provided by the present invention;

fig. 2 is a schematic structural view of a novel wrench socket towards one end of the plug hole;

FIG. 3 is a top view of a novel wrench socket provided by the present invention;

fig. 4 is a cross-sectional view of a new wrench socket.

Detailed Description

The present invention provides a new wrench socket, which will be described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The utility model provides a novel sleeve for a wrench, which has a structure shown in figures 1-3 and comprises a sleeve body 1, wherein one end of the sleeve body 1 is provided with an occlusion hole 2, and the other end is provided with an insertion hole 3 matched with the tail end of the wrench; in the first embodiment, the engaging hole 2 is a hexagonal through hole or a dodecagonal through hole, and the inserting hole 3 is a square through hole. A first reverse taper surface 30 is formed at one end of the sleeve body 1 close to the occlusion hole 2, and the first reverse taper surface 30 is positioned at the outer edge of the occlusion hole 2; when the bolt or the nut is inserted into the engaging hole 2, the first reverse tapered surface 30 can play a guiding role, so that the bolt or the nut is automatically centered. A plurality of first inclined planes 4 are uniformly formed on the first inverted conical surface 30 along the clockwise direction, a plurality of second inclined planes 5 are uniformly formed on the first inverted conical surface along the counterclockwise direction, and the intersection of each first inclined plane 4 and the corresponding second inclined plane 5 is the edge angle of the occlusion hole 2; when the nut is used, when the sleeve body 1 is rotated clockwise or anticlockwise, the end face of the nut can rotate along the edge of the first inclined surface 4 or the edge of the second inclined surface 5, so that the corners of the nut correspond to the corners of the meshing hole 2 one by one, and the nut can automatically slide into the meshing hole 2. The first inverse conical surface 30 is also provided with a plurality of first grooves 6, and the first grooves 6 correspond to the edges of the occlusion holes 2; when the sleeve body 1 is rotated to fall into the occlusion hole 2, the first groove 6 can block the edge of the nut, so that the edge of the nut corresponds to the edge angle of the occlusion hole 2, and the deviation rectifying performance of the sleeve for the wrench is improved. A second reverse taper surface 7 is arranged at each group of the first bevel surface 4 and the second bevel surface 5 and positioned on the first reverse taper surface 30; the second reverse taper surface 7 and the first reverse taper surface 30 act together, so that the automatic centering performance of the wrench socket is greatly improved. Preferably, the slope of the edge of the first inclined surface 4 and the second inclined surface 5 is greater than 0.5, so as to avoid the formation of a tip on the first reverse tapered surface 30, which affects the service life.

The edge of the occlusion hole 2 is provided with first guide grooves 8 along the length direction of the sleeve body 1, so that a bolt or a nut can be more smoothly sleeved in the occlusion hole 2. Preferably, the inner wall of the guide groove 8 is formed in a circular arc shape, so that the service life of the wrench socket can be prolonged.

First down-taper face 30 first inclined plane 4 second inclined plane 5 first recess 6 with transition fillet 9 is all opened to the handing-over department of second down-taper face 7, avoids taking place the potential safety hazard because of there being the edges and corners, can increase of service life simultaneously.

A third reverse tapered surface 10 is arranged at one end of the sleeve body 1, which is positioned in the plug-in hole 3, so that the tail end of the wrench plays a centering role when being inserted into the plug-in hole 3.

The edges and corners of the inserting hole 3 are provided with second guide grooves 11 along the length direction of the sleeve body 1, so that the tail end of the wrench can be more smoothly inserted into the inserting hole 3. Preferably, the inner wall of the second guide groove 11 is formed in a circular arc shape, so that the service life of the wrench socket can be prolonged.

Referring to fig. 4, a spring 12 is disposed in the engaging hole 2, and one end of the spring 12 is fixedly connected to the bottom of the engaging hole 2. Specifically, the spring 12 is a special-shaped spring, a flange 13 and a second groove 14 are respectively arranged at one end, close to the insertion hole 3, in the engagement hole 2, and the bottom of the spring 12 is clamped in the second groove 14, so that the spring 12 is prevented from being separated from the engagement hole 2, and the use is prevented from being influenced. When the bolt or the nut is unscrewed, the spring 12 can apply elasticity to the nut, so that the bolt or the nut is separated from the sleeve body 1, and the bolt or the nut is convenient to take out.

A plurality of first slag discharge holes 15 are formed in the outer wall of the sleeve body 1 on one side of the meshing hole 2 and used for discharging oil slag; and a limiting hole 16 is formed in one side, located at the inserting hole 3, of the outer wall of the sleeve body 1 and used for fixing the tail end of the wrench, limiting the wrench and preventing the wrench from axially shifting to be separated from the inserting hole 3.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A novel sleeve for a wrench comprises a sleeve body (1), wherein one end of the sleeve body (1) is provided with an occlusion hole (2), and the other end of the sleeve body is provided with an insertion hole (3) matched with the tail end of the wrench; the sleeve is characterized in that one end, close to the occlusion hole (2), of the sleeve body (1) is provided with a first inverted cone-shaped surface (30), and the first inverted cone-shaped surface (30) is located on the outer edge of the occlusion hole (2); a plurality of first inclined planes (4) are uniformly arranged on the first inverted conical surface (30) along the clockwise direction, a plurality of second inclined planes (5) are uniformly arranged along the anticlockwise direction, and the intersection of each first inclined plane (4) and the corresponding second inclined plane (5) is the edge angle of the occlusion hole (2); a plurality of first grooves (6) are further formed in the first inverted conical surface (30), and the first grooves (6) correspond to edges and corners of the meshing holes (2).

2. A new socket as claimed in claim 1, characterised in that a second surface (7) is provided at each of said first (4) and second (5) inclined surfaces and on said first surface (30).

3. A new type of socket for wrench as claimed in claim 1, wherein the corners of said engaging holes (2) are provided with first guiding grooves (8) along the length direction of said socket body (1).

4. A new socket for a wrench as claimed in claim 3, wherein the inner wall of said guide groove (8) is rounded.

5. A new socket for wrench as claimed in claim 2, wherein the first reverse taper surface (30), the first bevel surface (4), the second bevel surface (5), the first recess (6) and the second reverse taper surface (7) are all provided with transition fillets (9) at their junctions.

6. A new type of socket for wrench as claimed in claim 1, wherein the socket body (1) is provided with a third reverse tapered surface (10) at the end of the socket hole (3).

7. A new socket for wrench as claimed in claim 1, wherein the corner of said insertion hole (3) is provided with a second guiding groove (11) along the length direction of said socket body (1).

8. A new wrench socket as claimed in claim 7, wherein the inner wall of the second guide groove (11) is in the shape of a circular arc.

9. A new socket for a wrench as claimed in claim 1, wherein a spring (12) is provided in said engaging hole (2), and one end of said spring (12) is fixedly connected to the bottom of said engaging hole (2).

10. A new socket for wrench as claimed in claim 9, wherein said spring (12) is a shaped spring, a flange (13) and a second recess (14) are respectively provided at one end of said engaging hole (2) close to said inserting hole (3), and the bottom of said spring (12) is clamped in said second recess (14).