CN211916653U

CN211916653U - Wrench is decided and is used with screwing up head suitable for narrow and small space

Info

Publication number: CN211916653U
Application number: CN201922129669.1U
Authority: CN
Inventors: 曲家儒; 朱润泽; 伦凯
Original assignee: Changchun Dazheng Automatic Equipment Co ltd
Current assignee: Changchun Dazheng Automatic Equipment Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-11-13
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a tightening head suitable for being matched with a fixed-torque wrench in a narrow space, which comprises a tightening head and a fixed-torque wrench, wherein the tightening head comprises an end head, a handle part and a connecting piece, the end head and the handle part are integrally cast and formed, the connecting piece is welded on the right side wall of the handle part, the left part of the end head is provided with a nut positioning groove, the left end of the fixed-torque wrench is provided with an adapter, and the adapter and the connecting piece are connected or disassembled through a quick-change spring pin; the utility model has the advantages of reasonable design, can make the head of screwing up and decide the supporting use of wrench, bear the moment of torsion of requirement, can accomplish screwing up of 60 degrees through twice operation, practiced thrift operating time, improve and screwed up efficiency.

Description

Wrench is decided and is used with screwing up head suitable for narrow and small space

Technical Field

The utility model relates to a screw up head technical field, especially relate to a surely turn round supporting with screw up head of spanner suitable for narrow and small space.

Background

In the process of completing a project for an automobile host factory, the traditional screwing tool cannot meet the special requirement on a narrow screwing space due to the large change degree of the design concept of the automobile body. In order to break through the obstruction and special requirements on the design of the vehicle body, the key point for better completing the production of the vehicle body is to update the types of the tightening tools and break through the technical difficulties.

In the assembly process of a vehicle body, a hexagon nut needs to be fastened, for some narrow tightening spaces, the angle of the operation space is only 35 degrees, the axial direction of the nut does not have a space for entering and exiting a tightening head up and down, the limitation of the tightening head used by the conventional fixed-torque wrench is large, the thickness and the contour size of the tightening head are large, the tightening head is inconvenient to operate in the narrow space, the hexagon nut cannot be attached again through overturning after the tightening head rotates to the limited space, the effective rotating angle of each rotation is small, and the tightening efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wrench socket is supporting with screwing up head surely turns round suitable for narrow and small space can use in the wrench socket cooperation surely turns round in narrow and small space. In order to realize the technical purpose, the technical effect is achieved, and the utility model discloses a realize through following technical scheme.

The utility model provides a turn round certainly and wrench supporting and use tightening head suitable for narrow and small space, includes tightening head and the wrench of turning round certainly, tightening head includes end, stalk portion and connecting piece, the shaping is pour with stalk portion an organic whole to the end, connecting piece welding stalk portion right side wall, the nut constant head tank has been seted up to the end left part, turn round certainly the wrench left end and install the adapter, be connected or dismantle through quick change spring catch between adapter and the connecting piece.

Preferably, in the screwing head is used in cooperation with the fixed-torque wrench suitable for narrow and small space, the included angle between the upper side wall of the nut positioning groove and the central axis of the handle is 15 degrees.

Preferably, in the tightening head for matching a fixed-torque wrench suitable for a narrow space, the distance between opposite sides of the nut positioning groove is 18 mm.

Preferably, in the tightening head for a fixed-torque wrench suitable for a narrow space, the thickness of the shank is 6 mm.

Preferably, in the tightening head for the matched torque wrench suitable for the narrow space, the right profile of the end head is in an arc-shaped structure, and the diameter of the arc-shaped structure is 33.6 mm.

Preferably, in a tightening head for a fixed-torque wrench adapted to a narrow space, a torque value of the fixed-torque wrench is set to 40+5 NM.

The utility model has the advantages that:

1. the utility model has reasonable structural design, and can ensure that the tightening head is matched with the torque wrench to bear the required torque by fixing the adapter and the connecting piece through the quick-change spring pin;

2. the tightening head can be applicable to 30 degrees narrow and small spaces in this device, utilizes the 15 degrees declination between lateral wall and the stalk portion axis on the nut constant head tank for the stalk portion front and back end upset switches the back, and the nut constant head tank still can laminate hexagon nut card once more and go into, thereby screws up or loosen next time, can accomplish 60 degrees screws up through twice operation, has practiced thrift operating time, has improved and has screwed up efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

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

fig. 3 is a schematic view of the usage status after the utility model is turned over.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the tightening head for a fixed-torque wrench suitable for a narrow space includes a tightening head 1 and a fixed-torque wrench 2, the tightening head 1 includes a head 101, a handle 102 and a connecting member 103, the head 101 and the handle 102 are integrally cast, the connecting member 103 is welded to a right side wall of the handle 102, a nut positioning groove 104 is formed in a left portion of the head 101, an adapter 201 is installed at a left end of the fixed-torque wrench 2, and the adapter 201 and the connecting member 103 are connected or detached through a quick-change spring pin 3.

The angle between the upper side wall of the nut positioning groove 104 and the central axis of the handle 102 is 15 degrees, the device is turned over back and forth after rotating for 30 degrees, and the nut positioning groove 104 can still be embedded into the hexagon nut.

The opposite side distance size of nut constant head tank 104 is 18mm, is convenient for cooperate the hex bolts to screw up.

The thickness dimension of the handle part 102 is 6mm, the right part of the end head 101 is in an arc-shaped structure, the diameter of the arc-shaped structure is 33.6mm, and the requirement on strength can be met while the space dimension is reduced.

The torque value of the fixed-torque wrench 2 is set to be 40+5NM, so that the torque requirement is met, and the fastening quality is guaranteed.

The utility model discloses a concrete implementation way does:

when the device is used, the quick-change spring pin 3 is used for fixing the rotary joint 201 and the connecting piece 103, so that the tightening head 1 is positioned at the left end of the fixed-torque wrench 2, and the torque value of the fixed-torque wrench 2 is set to be 40+5 NM;

as shown in fig. 2, the tip 101 of the tightening head 1 is close to the hexagon nut, so that the hexagon nut extends into the inner side wall of the fitting nut positioning groove 104, and is separated after rotating to the space limit;

as shown in fig. 3, the front end and the rear end of the handle part 102 are turned over and switched, and the 15-degree deflection angle between the central axis of the handle part 102 and the upper side wall of the nut positioning groove 104 is utilized, so that the nut positioning groove 104 can still be attached to the hexagonal nut and clamped into the hexagonal nut after the device is turned over again, and then the hexagonal nut is screwed down or loosened next time, so that the device can be screwed down by 60 degrees in a narrow and small screwing space of 30 degrees by two times of operation, the operation time is saved, and the screwing efficiency is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a decide to turn round supporting tightening head of using of spanner suitable for narrow and small space, includes tightening head (1) and decides to turn round spanner (2), its characterized in that: tightening head (1) includes end (101), stalk portion (102) and connecting piece (103), end (101) and stalk portion (102) integrated into one piece are pour the shaping, connecting piece (103) welding stalk portion (102) right side wall, nut constant head tank (104) have been seted up to end (101) left part, adapter (201) are installed to torque wrench (2) left end, connect or dismantle through quick change spring round pin (3) between adapter (201) and connecting piece (103).

2. The tightening head for a fixed-torque wrench suitable for a narrow space according to claim 1, wherein: and an included angle between the upper side wall of the nut positioning groove (104) and the central axis of the handle part (102) is 15 degrees.

3. The tightening head for a fixed-torque wrench suitable for a narrow space according to claim 1, wherein: the distance between the opposite sides of the nut positioning groove (104) is 18 mm.

4. The tightening head for a fixed-torque wrench suitable for a narrow space according to claim 1, wherein: the handle (102) has a thickness dimension of 6 mm.

5. The tightening head for a fixed-torque wrench suitable for a narrow space according to claim 1, wherein: the right part of the end (101) is in an arc-shaped structure, and the diameter of the arc-shaped structure is 33.6 mm.

6. The tightening head for a fixed-torque wrench suitable for a narrow space according to claim 1, wherein: the torque value of the torque wrench (2) is set to be 40+5 NM.