CN201455872U

CN201455872U - Bending-angle screw driver

Info

Publication number: CN201455872U
Application number: CN2009201284236U
Authority: CN
Inventors: 刘行; 李磊; 张同尊; 陈智; 吴真
Original assignee: CHONGQING POWER Co EXTRA HIGH VOLTAGE BUREAU
Current assignee: CHONGQING ELECTRIC POWER Corp MAINTENANCE BRANCH; State Grid Corp of China SGCC
Priority date: 2009-08-13
Filing date: 2009-08-13
Publication date: 2010-05-12
Anticipated expiration: 2019-08-13

Abstract

The utility model relates to a screwdriver, comprising a handle (1), a driver rod (2) and a driver head (3), wherein one end of the driver rod (2) is embedded in the handle (1); the driver rod (2) and one end of the driver head (3) are connected by a rotating joint (4) which is provided with a locking part (5); and when the locking part is loosened, the connecting angle between the driver rod (2) and the driver head (3) can be adjusted. As the driver rod and the driver head of the screw driver are connected by the rotating joint, the screw driver has the following advantages that the angle of the driver rod and the driver head can be adjusted in large range, and the rotating joint (4) can transfer necessary torque.

Description

The bent angle screwdriver

Technical field

The utility model relates to a kind of screwdriver.

Background technology

The usual screwdriver that uses is a kind of straight-bar, it comprises three sections of handle, knife bar and cutter heads, one end of knife bar embeds in the handle, but the screwdriver that knife bar and cutter head are made by a straight-bar, when loading and unloading the screw of shelter lower end, often can't operate, because the straight-bar screwdriver can not the varied angle operation.Another kind of screwdriver is the flexible axle class, though such screwdriver can varied angle be operated, in order to guarantee to transmit the intensity of moment of torsion, the flexibility of flexible axle is limited, and flexible angle is less, has certain angle blind area, still can't operate in some cases.

The utility model content

Technical problem to be solved in the utility model just provides a kind ofly can transmit the necessary moment bent angle screwdriver of adjustable angle of bend on a large scale again.

Technical problem to be solved in the utility model is to realize by such technical scheme, it includes handle, knife bar and cutter head, one end of knife bar embeds in the handle, be connected with swivel between the other end of knife bar and cutter head one end, have locking member on this swivel, when locking member unclamps, can regulate the connection angle between knife bar and the cutter head.

Because the knife bar of screwdriver adopts swivel to be connected with cutter head, can adjust angle of bend on a large scale between knife bar and the cutter head, simultaneously because swivel is set at hard connection, can transmit the moment that needs like this.

As an optimal way of the present utility model, the swivel of screwdriver is to constitute like this: knife bar and cutter head have the face that is in contact with one another, all be provided with the dish tooth on the described contact-making surface, one in two contact-making surfaces is provided with axis hole in the center, another vertically is provided with the rotating shaft of passing described axis hole in the center, this rotating shaft one end has locking nut.

During use, unclamp locking nut, cutter head separates with the knife bar contact-making surface, then the random rotational angle of cutter head and knife bar; Tighten locking nut, the dish tooth on cutter head and the knife bar contact-making surface is then with the angle locking positioning that regulates, thus the connection angle of fixing bending.

Owing to adopted technique scheme, the utlity model has following advantage: can regulate the angle of bend of knife bar and cutter head on a large scale by swivel, swivel can transmit the moment of torsion of necessity simultaneously.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is the front view of the utility model bent angle screwdriver;

Fig. 2 is the knife bar front view of first kind of embodiment of the utility model bent angle screwdriver;

Fig. 3 is the cutter head front view of first kind of embodiment of the utility model bent angle screwdriver;

Fig. 4 is the cutter head left view of first kind of embodiment of the utility model bent angle screwdriver;

Fig. 5 is the knife bar front view of second kind of embodiment of the utility model bent angle screwdriver;

Fig. 6 is the cutter head front view of second kind of embodiment of the utility model bent angle screwdriver;

Fig. 7 is the cutter head left view of second kind of embodiment of the utility model bent angle screwdriver.

Among the figure: 1. handle; 2. knife bar; 3. cutter head; 4. swivel; 5. locking member; 6. locking nut; 7. dish tooth; 8. axis hole; 9. rotating shaft;

11. pit; 12. boss; 13. axis hole; 14. rotating shaft; 15. locking nut.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, bent angle screwdriver of the present utility model, comprise handle 1, knife bar 2 and cutter head 3, one end of knife bar 2 embeds in the handle 1, be connected with swivel 4 between the other end of knife bar 2 and cutter head 3 one ends, have locking member 5 on this swivel 4, when locking member 5 unclamps, can regulate the connection angle between knife bar and the cutter head, fixedly connected angle when locking member 5 lockings.Because the knife bar of screwdriver adopts swivel 4 to be connected with cutter head, can interior on a large scale adjustment angle of bend between knife bar 2 and the cutter head 3, and the swivel 4 of screwdriver is set at hard connection, can transmit like this need moment.

The swivel structure of first kind of specific embodiment of the utility model bent angle screwdriver is as follows: as shown in Figure 2, the external part of knife bar 2 is provided with a circular arc plane, and this plane is provided with dish tooth 7, and the center is provided with axis hole 8.

Shown in Fig. 3,4, cutter head 3 is being provided with the circular arc plane with knife bar 2 contacted ends, and this plane is provided with dish tooth 7, and the center vertically is provided with the rotating shaft 9 of passing axis hole 8, and an end of rotating shaft 9 has locking nut 6.

Certainly, the circular arc planar central of knife bar 2 vertically can be provided with rotating shaft, and cutter head 3 correspondingly is provided with axis hole in the circular arc planar central of its contact.

During use, unclamp locking nut 6, cutter head 3 separates with knife bar 2 contact-making surfaces, then the random rotational angle of cutter head 3 and knife bar 2;

Tighten locking nut

6,7 in the dish tooth on cutter head 3 and knife bar 2 contact-making surfaces is with the angle locking positioning that regulates, thus the connection angle of fixing bending.

The swivel structure of second kind of specific embodiment of the utility model bent angle screwdriver is as follows: as shown in Figure 5, the external part of knife bar 2 is provided with a circular arc plane, and this planar central is provided with axis hole 13, evenly offers pit 11 around the axis hole 13.

Shown in Fig. 6,7, cutter head 3 is having the circular arc plane with knife bar 2 contacted ends, this planar central vertically is provided with the rotating shaft 14 of passing axis hole 13, evenly be provided with and pit 11 corresponding boss 12 around this face upper edge rotating shaft 14, the other end that axis hole 13 is passed in rotating shaft 14 has locking nut 15.

Certainly, the circular arc planar central of knife bar 2 vertically can be provided with rotating shaft and boss, and cutter head 3 correspondingly is provided with axis hole and pit in the circular arc planar central of its contact.

During use, unclamp locking nut 15, cutter head 3 separates with knife bar 2 contact-making surfaces, then the random rotational angle of cutter head 3 and knife bar 2; Tighten locking nut 15,11 of boss 12/ pits on cutter head 3 and knife bar 2 contact-making surfaces are with the angle locking positioning that regulates, thus the connection angle of fixing bending.

After adjusting bending angle, bent angle screwdriver of the present utility model can carry out the dismounting operation to screw as using spanner in narrow space.

Claims

1. bent angle screwdriver, comprise handle (1), knife bar (2) and cutter head (3), one end of knife bar (2) embeds in the handle (1), it is characterized in that: be connected with swivel (4) between the other end of described knife bar (2) and described cutter head (3) one ends, have locking member (5) on this swivel (4), can regulate connection angle between knife bar (2) and the cutter head (3) when unclamping at locking member (5).

2. bent angle screwdriver according to claim 1, it is characterized in that described swivel is to constitute like this: knife bar and cutter head have the face that is in contact with one another, all be provided with dish tooth (7) on the described contact-making surface, in two contact-making surfaces one is provided with axis hole (8) in the center, another vertically is provided with the rotating shaft (9) of passing described axis hole (8) in the center, these rotating shaft (9) one ends have locking nut (6).

3. bent angle screwdriver according to claim 1, it is characterized in that described swivel is to constitute like this: knife bar and cutter head have the face that is in contact with one another, on the described contact-making surface respectively correspondence be provided with pit (11) and boss (12), one of two contact-making surfaces is provided with axis hole (13) in the center, another vertically is provided with the rotating shaft (14) of passing described axis hole (13) in the center, these rotating shaft (14) one ends have locking nut (15).