CN203945305U - A kind of bottle opener - Google Patents

Abstract

The utility model discloses a screwdriver capable of increasing torque, which comprises a body 1, a handle 2, a screwdriver head 3, a screw rod 4 and a nut 5, and is characterized in that a groove 21 is formed on the handle, and at the center of the groove There is a through hole 22; the upper end of the body is a tenon structure 11, and a center hole 12 is opened at the center of the tenon on the body, and the tenon on the body is inserted into the groove on the handle. The screw rod passes through the center hole on the body and the handle, and the nut is screwed on the screw rod to form a movable hinge between the body and the handle, and the handle can rotate along the screw rod as the axis. Generally, the screwdriver described in the utility model can be used like a common screwdriver; if the required torque is large, the handle can be rotated 90 degrees around the screw rod to make it T-shaped, so as to increase the turning force arm of the screwdriver , making it possible to turn screws that cannot be turned with a normal screwdriver. Because the contact area between the tenon and the groove is large, the static friction force between them is large, so the handle is easy to locate and easy to operate.

Description

a screwdriver

technical field

The utility model belongs to the technical field of hand tools, in particular to a screwdriver. the

Background technique

Screwdrivers are widely used in daily life. When a commonly used screwdriver encounters a screw that is difficult to tighten or loosen, it is helpless due to its small force arm, which brings inconvenience to the user. The application number 201120312264.2 "A Kind of Screwdriver" published in Chinese patent literature on April 25, 2012 solves the problem that the force arm of the traditional screwdriver is small, but due to the lack of hinge between the handle and the screwdriver body, the gap between the handle and the screwdriver body Difficult to locate and inconvenient to operate. the

Contents of the invention

Aiming at the problems in the prior art, the utility model provides a screwdriver which can increase the force arm according to the needs, the handle can be positioned at any position, and the operation is very simple. the

The utility model is achieved through the following technical solutions:

A screwdriver, comprising a body 1, a handle 2, a screwdriver head 3, a screw 4 and a nut 5, characterized in that: a groove 21 is formed on the handle, and a through-hole 22 is formed at the center of the groove; Both the upper end surface 23 and the lower end surface 24 are arc surfaces. The upper end of the body is a tenon structure 11, and the center of the tenon on the body is provided with a through-hole 12. The upper end surface 13 and the lower end surface 14 of the tenon are arc-shaped surfaces, and the through-hole 22 of the groove on the handle is in line with that on the body. The through hole 12 of tenon has the same radius. The arc 13 on the tenon of the body and the arc 23 at the corresponding place on the handle groove are centered on the axis of the center of the through hole, and have the same radius; the arc 14 on the tenon on the body is the same as the arc at the corresponding place on the groove The center of circle of 24 is positioned on the axis of the center of circle of piercing hole, and radius is identical. The tenon 11 on the body is inserted into the groove 21 on the handle, the screw 4 passes through the center hole on the body and the handle, the nut 5 is screwed on the screw, and the handle can rotate along the screw as the axis. the

The beneficial effects of the utility model are: when the screwdriver is screwed, generally, the screwdriver of the present invention can be used like an ordinary screwdriver; if the required torque is large, the handle can be rotated 90 degrees around the screw rod, Make it T-shaped, so that the turning force arm of the screwdriver can be enlarged, so that the screw that cannot be rotated by an ordinary screwdriver due to torque can be rotated. Because the contact area between the tenon and the groove is large, the static friction force between them is large, so the handle is easy to locate and easy to operate. the

Description of drawings

Fig. 1 is the outline drawing of the utility model

Fig. 2 is the outline drawing when the utility model T-shaped state

Fig. 3 is the structural representation of the utility model

Figure 4 is the structural diagram of the ontology

Figure 5 is the structural diagram of the handle

In the figure: 1-driver body, 11-tenon, 12-tenon through the center hole, 13, 14-arc surface on the tenon, 2-handle, 21-groove on the handle, 22-groove through Heart hole, 23,24-arc surface on the groove, 3-driver head, 4-screw rod, 5-nut. the

Detailed ways

The utility model is described in further detail in conjunction with the accompanying drawings of the description now. the

Figure 1 is the general outline of the screwdriver

Figure 2 is the external view of the screwdriver when it works in a T shape under the condition of large torque

As shown in Fig. 3, it is a structural diagram of the screwdriver of the present invention, including a body, a handle, a screwdriver head, a screw rod, and a nut. Insert the tenon on the body into the groove of the handle, and align the through hole of the tenon with the through hole of the groove, then pass the screw rod into the through hole, screw the nut onto the screw rod, and tighten it to It is advisable that the handle can rotate around the screw rod. the

Figure 4 is the body structure diagram

Figure 5 is a structural diagram of the handle.

Claims (5)

1. a bottle opener, comprises body (1), handle (2), screwdriver head (3), screw rod (4) and nut (5), it is characterized in that: on described handle, have groove (21), have center hole (22) in groove center; Body upper end is tenon structure (11), and tenon center, body upper end has a center hole (12).

2. a kind of bottle opener as claimed in claim 1, is characterized in that: the upper surface of handle grooves (23), lower surface (24) are arc surface.

3. a kind of bottle opener as claimed in claim 1, is characterized in that: upper surface (13), lower surface (14) of body upper end tenon are arc surface.

4. a kind of bottle opener as claimed in claim 1, is characterized in that: the center hole in handle grooves (22) is identical with center hole (12) radius on body tenon.

5. a kind of bottle opener as claimed in claim 2 or claim 3, is characterized in that: in the circular arc on body tenon (13) and handle grooves, the center of circle of the circular arc (23) of corresponding position is positioned on the axis in the center hole center of circle, and radius is identical; On circular arc on body tenon (14) and groove, the center of circle of the circular arc (24) of corresponding position is positioned on the axis in the center hole center of circle, and radius is identical.