CN2480108Y - Bits to prevent slippage of the brake - Google Patents

Abstract

A screwdriver head capable of preventing braking and sliding comprises a rod body in the shape of a rod; at least one braking part capable of driving a screw member to rotate, forming at least one braking surface corresponding to a restrained surface of the screw member; a textured section composed of a plurality of textures is further provided on the braking surface of the braking part, and the top of each textured section is provided to abut against each restrained surface of the screw member; each textured section of the screwdriver head can prevent the restrained surface of the screw member from being in full contact with the screw member, so that the screwdriver will not slide when it is braking and the operation can be smooth.

Description

Bits to prevent slippage of the brake

The utility model is related to a screwdriver, in particular to a screwdriver head structure that prevents sliding when turning a screw.

According to the structure of the general screwdriver head, the braking surface of each clamping part of the braking screw is a smooth plane, which is produced based on the convenience of processing, because each braking surface corresponds to the braking surface of the screw. , so that the system turns the screw to be screwed or disassembled.

However, the disadvantages of this kind of screwdriver head are:

Since each braking surface of the screwdriver is a smooth plane, when each braking surface brakes the controlled surface of the screw, the torque generated by the rotation will cause each braking surface to slip, thus causing The operation of not being able to effectively rotate the screw is very inconvenient for the user.

The main purpose of this utility model is to provide a screwdriver head that can prevent rotation and slippage, which can prevent the slippage when braking the screw, and make the screw fastening or disassembly of the screw easy to operate and effective. .

Another object of the present invention is to provide a screwdriver bit that can prevent rotation and sliding, which can provide various appearance lines and increase the overall strength.

In order to achieve the aforementioned purpose, the utility model provides a screwdriver head capable of preventing brake slippage, which is used for turning screw parts and has a restrained part forming at least one restrained surface; the screwdriver head includes: a shaft , is in the shape of a rod; at least one brake part is connected to one end of the rod body, and the brake part forms at least one brake surface that should be the constrained surface of the screw; it is characterized in that: the brake surfaces are also There is a texture section composed of several texture arrangements, and the tops of each texture section are used to abut against the controlled surfaces of the screw.

The directions of the lines are perpendicular to the direction of the shaft.

The directions of the lines are parallel to the direction of the shaft.

Wherein the direction of each grain is oblique to the direction of the shaft.

Wherein the screwdriver head is a cross screwdriver head.

Wherein the screwdriver head is a flat screwdriver head.

Wherein the lines protrude from the braking surfaces.

Wherein the lines are recessed on the braking surfaces.

The cross section of each of the lines is trapezoidal.

The cross-sections of the lines are triangular.

In order to enable examiners to further understand the structural features and practical effects of the utility model, the following is a detailed description of the preferred embodiments with the accompanying drawings, in which:

Fig. 1 is the combination perspective view of screwdriver head and handle of the present utility model;

Fig. 2 (a) is a plan view of an embodiment of the utility model cross screwdriver;

Fig. 2 (b) is the plane view of another embodiment of the cross screwdriver of the present invention;

Fig. 2 (c) is another embodiment plane view of cross screwdriver of the present invention;

Fig. 3 is the sectional view along 3-3 direction in Fig. 2 (a);

Fig. 4 (a) is a perspective view of an embodiment of the utility model flat screwdriver;

Fig. 4 (b) is the perspective view of another embodiment of the cross screwdriver of the present invention;

Fig. 4 (c) is the perspective view of another embodiment of the cross screwdriver of the present invention;

Fig. 5 (a) is a perspective view of an embodiment of the utility model hexagonal screwdriver;

Fig. 5 (b) is the perspective view of another embodiment of the utility model hex screwdriver;

Fig. 5 (c) is the perspective view of another embodiment of the utility model hex screwdriver;

Fig. 6 (a) is a cross-sectional view of the texture protrusion of the utility model screwdriver;

Fig. 6 (b) is another cross-sectional view of the grain protrusion of the utility model screwdriver;

Fig. 6 (c) is another cross-sectional view of the texture protrusion of the screwdriver of the present invention;

Fig. 7 (a) is a sectional view of the recessed lines of the screwdriver of the present utility model;

Fig. 7 (b) is another cross-sectional view of the concave groove of the screwdriver of the present utility model;

Fig. 7 (c) is another cross-sectional view of the concave groove of the screwdriver of the present invention;

Fig. 8 is a state diagram of the utility model applied to a sleeve.

Please refer to Fig. 1, the screwdriver head 1 provided by a preferred embodiment of the present invention, which can prevent brake slippage, is in the shape of a long rod, and one end is connected with a handle 7 for the grip of the hand. turn.

Please refer to Fig. 2 (a) and Fig. 3, the screwdriver bit 1 of the present utility model is used for screwing a rod 8, and its head forms a controlled portion 81 and a plurality of controlled surfaces 83; the screwdriver bit 1 includes:

A shaft 10 is in the shape of a round rod, and one end thereof is provided with a connecting portion 13 for inserting and fixing on the handle 7 .

A brake portion 30 is connected to one end of the shaft 10 and has four brake pads 50 equally divided thereon, as shown in FIG. 3 .

Each of the braking pads 50 is in the shape of a sheet, and is provided to be clamped on the restrained portion 81 of the screw member 8. A braking surface 51 is formed on each of its two surfaces, which is flat, and each braking surface 51 is also provided with A pattern section 53 is formed by a plurality of lines 57 of trapezoidal cross-section, as shown in FIG. 83.

Now the operating state of using the matching screw in the embodiment of the utility model is described as follows:

As shown in Figures 2 to 3, the braking portion 30 of the screwdriver bit 1 is inserted into the constrained portion 81 of the screw 8, so that the top surfaces of the respective pattern sections 53 of the braking pads 50 can correspond to the top surfaces. It is arranged on the surface of each controlled surface 83 of the screw 8, so the relative contact can be relatively small, and when the screwdriver head 1 rotates, especially when the screw 8 is fastened, a relatively large torque is required, so it can Prevent relative sliding.

Therefore, when the user operates, the effect of convenience and labor saving can be achieved, and the purpose of preventing rotation can also be achieved, so it has an improved effect.

In addition, as shown in Figure 2(b) and (c), the lines 57 of the cross screwdriver of the present invention can be set to be parallel or oblique to the axial direction respectively, and also achieve the aforementioned effects of the present invention.

And as shown in Figure 4 (a), another preferred embodiment of the present utility model is a flat screwdriver bit 1A, and its lines 57 are horizontally located on each braking surface thereof; and as Figure 4 (c), Each grain 57 can also be set to be oblique.

In addition, as shown in Figure 5(a), another preferred embodiment of the utility model can also be a hexagon socket screwdriver 1B for inserting a hexagon socket screw (not shown), and form several horizontal lines 57 ; And the same as the previous embodiment, the lines 57 of the screwdriver 1B can also be arranged on each braking surface parallel to the axial direction or obliquely, as shown in Figure 5(b) and (c).

In addition, the cross-sectional shape of the lines of the present utility model is not limited to trapezoidal embossing; it can be a triangular protruding line 57A as shown in Figure 6(b), or a semicircular protruding line as shown in Figure 6(c) 57B shape.

And as shown in Fig. 7 (a), (b), (c), these lines are not limited to protruding shapes, on the contrary, they can be lines 58, 58A of various cross-sections of the concave braking surface 51 in addition. , 58B, the contact area with the restrained part 81 of the screw 8 is reduced by the braking surface 51 at the top of each line section, so the utility model can also achieve the action of strengthening the braking screw, and prevent sliding with the restrained part of the screw during operation. situation arises.

Finally, as shown in FIG. 8 , the screwdriver bit of the present invention is not limited to be used with a handle, and it can also be a short screwdriver bit 1C structure, which can be used for a sleeve tool 7A to fit and brake.

By the description of the above embodiment, the features of the utility model can be summarized as follows:

1. The screwdriver head of the utility model that can prevent rotation and sliding can reduce the contact surface of the braking surface by the pattern section formed by the concave-convex pattern, so that it can produce a powerful action rotation on the controlled part of the screw, and It can prevent slippage from happening.

2. The screwdriver head of the utility model can prevent brake slipping, and the setting of its grain section can make the formed appearance more textured and increase its strength.

To sum up, the screwdriver bit of the utility model that can prevent brake sliding has the aforementioned characteristics, can achieve various creative purposes, has a novel and creative design, and meets the conditions of a patent, so the application is filed according to law.

Claims (10)

1. A screwdriver head capable of preventing brake slippage, which is used to rotate a screw, and has a restrained portion to form at least one restrained surface; the screwdriver head includes: a shaft, which is rod-shaped; At least one braking part is connected to one end of the shaft, and the braking part forms at least one braking surface that should be the constrained surface of the screw; It is characterized by: Each braking surface is also provided with a pattern section composed of a plurality of pattern arrangements, and the top of each pattern section is for abutting against each controlled surface of the screw. 2 . The screwdriver bit capable of preventing brake slippage according to claim 1 , wherein the direction of each of the lines is perpendicular to the direction of the shaft. 3 . 3 . The screwdriver bit capable of preventing brake slippage according to claim 1 , wherein the direction of each of the lines is parallel to the direction of the shaft. 4 . 4 . The screwdriver bit capable of preventing brake slippage according to claim 1 , wherein the directions of the lines are oblique to the direction of the shaft. 5 . 5. The screwdriver bit capable of preventing brake slippage according to claim 1, wherein the screwdriver bit is a cross screwdriver bit. 6 . The screwdriver bit capable of preventing brake slippage according to claim 1 , wherein the screwdriver bit is a flat-head screwdriver bit. 7 . 7 . The screwdriver bit capable of preventing braking slippage according to claim 1 , wherein the lines protrude from the braking surfaces. 8 . 8 . The screwdriver bit capable of preventing braking slippage according to claim 1 , wherein each of the lines is recessed on each of the braking surfaces. 9 . The screwdriver bit capable of preventing braking slippage according to claim 1 , wherein the cross-section of each of the lines is trapezoidal. 10 . The screwdriver bit capable of preventing braking slippage according to claim 1 , wherein the cross-section of each of the lines is triangular. 11 .

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