CN211306153U

CN211306153U - Sleeve and wrench with same

Info

Publication number: CN211306153U
Application number: CN201920436527.7U
Authority: CN
Inventors: 章利民
Original assignee: Hangzhou Wren Hydraulic Equipment Manufacturing Co ltd
Current assignee: Hangzhou Wren Hydraulic Equipment Manufacturing Co ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-08-21
Anticipated expiration: 2029-04-02

Abstract

The utility model provides a sleeve and be furnished with this telescopic spanner thereof relates to installation extracting tool technical field, including the stack shell, the stack shell has upper end and lower extreme, and the inside sunken card hole that links to each other with the spanner that forms of upper end tip, lower extreme are equipped with the trepanning that is used for cup jointing the nut, are equipped with the socket that is used for alternating the bolt on the stack shell, the beneficial effects of the utility model are that set up the bolt groove on the sleeve stack shell, when the sleeve is inserted with the spanner and is established the connection, realize the secondary through the bolt and fix for both connect more firmly, be difficult for droing.

Description

Sleeve and wrench with same

Technical Field

The utility model relates to an installation extracting tool technical field is a sleeve and is furnished with this telescopic spanner particularly.

Background

The sleeve is the accessory commonly used in the course of working, and the specially adapted twists the bolt or the nut of very narrow and small or sunken very depths of position, but current spanner and sleeve just insert the establishment simply and be connected, lead to the phenomenon that the sleeve drops in operation process easily, slow down work efficiency.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a sleeve with a simple structure and a more secure connection with a wrench.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a sleeve, the sleeve includes the stack shell, the stack shell has upper end and lower extreme, the inside sunken card hole that forms and link to each other with the spanner of upper end tip, the lower extreme is equipped with the trepanning that is used for cup jointing the nut, be equipped with the socket that is used for alternating the bolt on the stack shell.

The side of the upper end is inwards sunken to form an arc-shaped groove used for clamping the anti-skid ring, and two ends of the fixing pin are respectively abutted against the inner side wall of the anti-skid ring.

Wherein, the joint of the upper end and the lower end is provided with an arc chamfer with the radius of 3-10 mm.

Wherein, the tail end of the trepanning is provided with a circular arc-shaped tool withdrawal groove.

The utility model provides a spanner with above-mentioned sleeve cooperation is used.

The spanner is including inserting the downthehole lug of fixing with card hole circumference of card, be equipped with the bolt hole on the lug, the bolt passes the socket of setting on the stack shell in proper order and sets up the bolt hole on the lug, locks the lug in the card is downthehole.

The lug is a quadrilateral body corresponding to the clamping hole of the sleeve.

Wherein the length of the bolt is greater than the depth of the bolt hole.

Compared with the prior art, the sleeve of the utility model has the following advantages: the utility model discloses set up the bolt groove on the sleeve section of thick bamboo, when sleeve and spanner are inserted and are established and be connected, realize that the secondary is fixed through the bolt for both connect more firmly, be difficult for droing.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic view of the combined and disassembled structure of the wrench and the socket of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In addition, in the embodiments of the present invention, the directional indications (such as upper, lower, left, right, front and rear … …) are mentioned, and the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

All directions or positional relationships mentioned in the embodiments of the present invention are positional relationships based on the drawings, and are only for convenience of description and simplified description, and do not imply or imply that the device or element referred to must have a specific orientation, and should not be construed as limiting the present invention. If there is a description in an embodiment of the present invention referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides a sleeve, it is shown in combination fig. 1-3, sleeve 1 includes stack shell 11, stack shell 11 has upper end 2 and lower extreme 3, 2 tip inwards sunken formation in upper end is used for inserting the card hole 21 of establishing spanner 4, lower extreme 3 is equipped with the trepanning 31 that is used for cup jointing the nut, and is concrete, trepanning 31 adopts hexagonal structure in this embodiment, agree with most bolt head with this, locking force is strong, difficult slipping, the interface links up agrees with more acquiescence, it is preferred, trepanning 31 end still is equipped with circular arc type broach groove 32, it is smooth excessive to realize with this, under the condition of avoiding interfering, alleviate the stress concentration problem, be equipped with the socket 12 that is used for alternating bolt 43 on stack shell 11's upper end 2.

The utility model provides a spanner with above-mentioned sleeve, including inserting in calorie hole 21 and with the fixed lug 41 of card 21 circumference, be equipped with bolt hole 42 on the lug 41, bolt 43 passes socket 12 and the bolt hole 42 of setting on lug 41 that set up on stack shell 11 in proper order, lock lug 41 in calorie hole 21, it is specific, in this embodiment, lug 41's shape is the tetrahedron corresponding with the card hole 21 of sleeve 1, in other embodiments, lug 41's shape can be the trihedron, the pentahedron or hexahedron, so that sleeve 1 better fixes on spanner 4, and is more firm, be difficult for droing.

In the embodiment, the side of the upper end 2 of the barrel body 11 is recessed inwards to form an arc-shaped groove 22 for clamping the anti-skid ring 5, two ends of the fixing pin 42 are respectively abutted against the inner side wall of the anti-skid ring 5, in the specific operation,

the upper end 2 of this embodiment stack shell 11 is equipped with the circular arc chamfer that the radius is 3-10mm with 3 junctions of lower extreme to this realizes that upper end 2 is excessive with the smoothness of lower extreme 3, avoid the stress concentration point in operation process, avoid producing the crack, when circular arc chamfer radius is less than 3mm, the effect of avoiding the stress concentration point between the upper end 2 of stack shell 11 and the lower extreme 3 is relatively poor, still exist easily because of stress is great in operation process, make linking department produce the crack, when circular arc chamfer radius is greater than 10mm, produce an arc groove because of chamfer radius is too big between the upper end 2 of stack shell 11 and the lower extreme 3, lead to combining torsion when spanner 4 and sleeve 1 easily, make upper end 2 and lower extreme 3 take place the fracture.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sleeve, characterized by:

sleeve (1) is including stack shell (11), stack shell (11) have upper end (2) and lower extreme (3), the inside sunken card hole (21) that are used for inserting spanner (4) that form of upper end (2) tip, lower extreme (3) are equipped with trepanning (31) that are used for cup jointing the nut, be equipped with socket (12) that are used for interlude bolt (43) on upper end (2) of stack shell (11).

2. A socket according to claim 1, wherein the upper end (2) is inwardly recessed from its side to form an arc-shaped groove (22) for receiving the anti-slip ring (5), and both ends of the plug pin (43) are respectively abutted against the inner side wall of the anti-slip ring (5).

3. A socket according to claim 1, wherein the junction of the upper end (2) and the lower end (3) is provided with a rounded chamfer having a radius of 3-10 mm.

4. A socket according to claim 1, wherein the end of the trepan bore (31) is provided with a circular relief (32).

5. A wrench fitted with a socket according to any one of claims 1 to 4, wherein the wrench (4) includes a projection (41) inserted into the engagement hole (21) and circumferentially fixed to the engagement hole (21), the projection (41) being provided with a pin hole (42), the pin (43) passing through the socket (12) provided in the barrel (11) and the pin hole (42) provided in the projection (41) in sequence to lock the projection (41) in the engagement hole (21).

6. A wrench as claimed in claim 5, wherein said projection (41) is a four-sided body corresponding to the snap hole (21) of said sleeve (1).

7. A wrench as claimed in claim 5, wherein the length of said spigot (43) is greater than the depth of said spigot hole (42).