WO2017041619A1

WO2017041619A1 - Anti-thread-stripping and effort-saving screwdriver and screwdriver assist device

Info

Publication number: WO2017041619A1
Application number: PCT/CN2016/096122
Authority: WO
Inventors: 余建桥
Original assignee: 余建桥
Priority date: 2015-09-08
Filing date: 2016-08-21
Publication date: 2017-03-16
Also published as: CN105666390A

Abstract

An anti-thread-stripping and effort-saving screwdriver and a screwdriver assist device. The screwdriver consists of a screwdriver rod (1), a screwdriver head (2), a handle (3), an external thread (4) disposed on the rod, and a tightening member (5). The assist device consists of the external thread (4) and the tightening member (5). The tightening member (5) is also provided with an internal thread (51) and a tightening head (52) thereon. When in use, the tightening member (5) screws the internal thread (51) thereof on or off surrounding the external thread (4) to adjust a distance between the screwdriver head (2) and the tightening head (52), such that a bolt head (6) is tightly engaged between the screwdriver head (2) and the tightening head (52) and cannot move substantially. Therefore, the present invention can prevent a bolt head and also a screwdriver head from being stripped, thus saving screws, reducing force needed for screwing and ensuring the quality of screwing. The present invention can be applied to various types of electric, pneumatic or other power-driven screwdrivers.

Description

Auxiliary device for a non-slip wire and labor-saving screwdriver and screwdriver

[0001] The present invention relates to an auxiliary device for a non-slip wire and labor-saving screwdriver and a screwdriver, and belongs to the field of manual and mechanical tools.

Background technique

[0002] For ordinary screwdrivers currently on the market.

technical problem

[0003] At present, ordinary screwdrivers on the market need to additionally apply a force to prevent the screwdriver head from slipping off the upper groove of the screw head when tightening the screw. If the power is insufficient, the slippery wire will be caused, which is laborious and causes many trouble.

Problem solution

Technical solution

[0004] The present invention provides an auxiliary device for a non-slip wire and labor-saving screwdriver and a screwdriver, which overcomes the above drawbacks, can prevent the sliding wire, saves the screw and saves labor, and is widely applied to a manual, electric, pneumatic or other power source screwdriver.

[0005] A non-slip wire and labor-saving screwdriver is composed of a screwdriver body 1, a screwdriver bit 2, a hand piece 3, an external thread portion 4 provided on the rod body 1, and a pocket portion 5, which are characterized by: 1. The arm portion 5 is further provided with an internal thread portion 51, the internal thread of the internal thread portion 51 and the external thread of the external thread portion 4 on the rod body 1 are matched with each other, and can be screwed on the external thread portion 4; The tightening head 52 is further provided on the tight portion 5, and the pocket portion 52 is used for arranging the lower portion of the screw head 6; 3. The function of providing the internal thread portion 51 on the pocket portion 5 is: the pocket portion 5 By screwing the internal thread portion 51 around the external thread portion 4 to adjust the distance between the driver bit 2 and the lap head 52, the screw head 6 can be firmly caught in the driver bit 2 and the lap head 52. Between, and the screwdriver bit 2 can be tightly pressed against the groove on the upper part of the screw head 6. The hand-held portion 3 referred to herein may be either a manual screwdriver handle or a fuselage of an electric, pneumatic or other power source.

[0006] The lap portion 5 of the above-mentioned screwdriver can be configured as follows: 1. The lap portion 52 is pivotally connected to the internal thread portion 51 through the connecting portion 53; 2. The V-shaped card slot is provided on the lap head 52; Adjusting the angle of the head 52 by pivoting about the pivot, The V-shaped card slot of the pocket portion 52 is tightly clamped to the lower portion of the screw head 6.

[0007] The above-mentioned gripping portion 5 of the screwdriver may also be configured as follows: 1. One or more collets in which the gripping head 52 is provided as a jig; 2. Each collet passes through a respective connecting portion 53 and an internal thread The portions 51 are connected; 3. Each of the chucks and the respective connecting portions 53 are provided as clamps that can be twisted, and the functions thereof are: in the case of applying a clamping force, each of the chucks can collectively clamp the lower portion of the screw head 6.

[0008] The lap portion 5 of the screwdriver of the above paragraph: 1. The internal thread portion 51 is further provided with an external thread 54; 2. and is provided with a urging portion 55, and the urging portion 55 is provided with an external thread 54 matched internal threads, the urging portion 55 can be screwed around the internal thread portion 51; 3. By screwing the urging portion 55, the urging portion 55 is tightened to the extension portion of each connecting portion 53 or each connecting portion 53, A clamping force is applied to the clamp to clamp the lower portion of the screw head 6 tightly.

[0009] In the above-mentioned first type of screwdriver, the external thread portion 4 and the screwdriver shaft 1 can be integrally fixedly connected. The external thread portion 4 and the screwdriver shaft 1 can also be connected by a non-integrated detachable connection, and the locking rod body 1 is connected by a locking device, and the locking device can be loosened without using the cymbal, and the shank can be removed from the screwdriver body 1 . The advantages of using the detachable connection are: When the screwdriver bit 2, the screwdriver body 1 or the screwdriver bit 2 are damaged, the connected screwdriver body 1 and the screwdriver bit 2 and/or the handpiece 3 can be easily replaced. .

[0010] There is a need to clarify that in most cases the connected screwdriver body 1 and the screwdriver head 2 are often referred to as screwdriver bits, especially on the Internet.

[0011] The present invention also relates to an auxiliary device for a screwdriver which is composed of an external thread portion 4 and a pocket portion 5. When used in combination with various types of screwdrivers, the external thread portion 4 of the auxiliary device and the screwdriver shaft 1 can be integrally fixedly connected; or a non-integrated detachable connection can be used, and the locking device is connected to the screwdriver body 1 by a locking device. , You can also loosen the locking device without using the cymbal and remove it from the screwdriver body 1.

[0012] The screwdriver body 1 referred to herein includes not only a fixed screwdriver body but also a replaceable and detachable screwdriver body (for example: a replaceable, detachable electric screwdriver body, and in many cases it is directly called Electric screwdriver head).

The lap portion 5 is provided with an internal thread portion 51, and the internal thread of the internal thread portion 51 and the external thread of the external thread portion 4 are matched to each other, and can be screwed on the external thread portion 4.

[0014] The pocket 5 is further provided with a gripping head 52 for gripping the lower portion of the screw head 6.

[0015] The effect of providing the internal thread portion 51 on the pocket 5 is: the pocket 5 surrounds the external thread by its internal thread portion 51 The portion 4 is screwed to adjust the distance between the driver bit 2 and the pocket 52, so that the screw head 6 is firmly caught between the driver bit 2 and the pocket 52, and the screwdriver bit 2 can be made. Hold the groove of the upper part of the screw head 6 tightly.

[0016] A hole may be axially provided in the external thread portion 4, and the screwdriver shaft 1 may be inserted into the hole to be nested in the hole.

[0017] The internal thread portion 51 of the pocket portion 5 and the body portion of the pocket portion 5 may be hinged.

[0018] The auxiliary device of the above-mentioned screwdriver can also be connected with the existing manual or various power screwdriver body by a standardized interface, and is used together with the existing screwdriver, and its application is more extensive.

Advantageous effects of the invention

Beneficial effect

[0019] Using the above-mentioned auxiliary device of a screwdriver or a screwdriver, the screw head 6 can be firmly caught between the screwdriver bit ₂ and the pocket _{52 without} substantially shaking, and overcomes the use of a conventional screwdriver on the screw 吋The screw will be smashed or smashed. In most of the middle section of the upper screw, it is possible to use only the rotational force without the thrust, but only at the end of the upper screw, it is necessary to screw the external thread portion 4 to relax and move the pocket 5 After that, it needs to be done by the existing method, and the whole process of screwing is not troublesome. Therefore, it can prevent the screw head from slipping, prevent the screwdriver head from slipping, save the screw, and greatly reduce the required thrust of the upper screw, and ensure the quality.

Brief description of the drawing

DRAWINGS

1 is a perspective view of a specific embodiment of a screwdriver of the present invention.

2 is a perspective exploded view of FIG. 1.

3 is a schematic structural view of another embodiment of a screwdriver of the present invention.

4 is a schematic exploded view of the structure of FIG. 3.

5 is a perspective view of a specific embodiment of an auxiliary device for a screwdriver according to the present invention.

6 is a perspective exploded view of FIG. 5.

7 is a perspective view of a specific embodiment of the embodiment of the embodiment shown in FIGS. 5 and 6 for use with a screwdriver and a manual screwdriver.

8 is a replaceable and detachable auxiliary device for a screwdriver and an electric screwdriver shown in the embodiment shown in FIG. 5 and FIG. A perspective view of a particular embodiment of the unloaded shaft for use.

9 is a perspective view of another embodiment of an auxiliary device for a screwdriver according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

[0029] The technical solution of the present invention will be further described in detail below with reference to the preferred embodiments of the accompanying drawings.

[0030] FIGS. 1 and 2 show a specific embodiment of a non-slip wire and labor-saving screwdriver of the present invention.

[0031] The screwdriver of this embodiment is made up of a screwdriver body 1 , a cross screwdriver bit 2 , a cylindrical hand 3

The external thread portion 4 and the pocket portion 5 fixed to the rod body 1 are composed.

The upper portion of the pocket portion 5 is further provided with an internal thread portion 51, and the internal thread of the internal thread portion 51 is matched with the external thread of the external thread portion 4 of the rod body 1, and can be screwed on the external thread portion 4.

[0033] The pocket portion 5 is further provided with a pocket portion 52. The pocket portion 52 is pivotally connected to the internal thread portion 51 through the connecting portion 53. The pocket portion 52 is provided with a V-shaped card slot through the surrounding pivot. The shaft rotation adjusts the angle of the head 52 so that the V-shaped slot of the pocket 52 is tightly caught and the lower portion of the screw head 6 is grasped.

[0034] The lap portion 5 is screwed around the external thread portion 4 by the internal thread portion 51 thereof to adjust the distance between the Phillips screwdriver bit 2 and the lap head 52, so that the screw head 6 is firmly stuck in the cross type Screwdriver head 2 and pocket 5

Between 2, and the screwdriver bit 2 can be tightly pressed against the cross recess in the upper part of the screw head 6.

Embodiments of the invention

[0035] The technical solutions of the present invention are further described in detail below with reference to other specific embodiments given in the accompanying drawings.

[0036] FIGS. 3 and 4 show another embodiment of a non-slip wire and labor-saving screwdriver of the present invention.

[0037] The dashed lines in Figure 4 represent the internal threads of the different components, respectively.

[0038] The screwdriver of this embodiment is made up of a screwdriver body 1 , a screwdriver blade 2 , a cylindrical hand 3

The lap portion 5 is further provided with an internal thread portion 51, and the internal thread of the internal thread portion 51 and the external thread of the external thread portion 4 of the rod body 1 are matched with each other, and can be screwed on the external thread portion 4.

[0040] The pocket 5 is further provided with a pocket portion 52, and the pocket portion 52 is provided as a pair of chucks of the clamp, each of the jaws being hinged to the internal thread portion 51 by a respective connecting portion 53, each The collet and the respective connecting portion 53 are provided as clamps that can be twisted. [0041] The outer peripheral portion 54 of the inner thread portion 51 of the pocket portion 5 is further provided with an external thread 54; the pocket portion 5 is further provided with a biasing portion 55, and the force applying portion 55 is provided with a matching inner thread 54 Threading, the urging portion 55 can be screwed around the internal thread portion 51; by screwing the urging portion 55, the urging portion 55 is tightened to the extension portion of each connecting portion 53, and a clamping force is applied to the clamp to tightly clamp the screw head 6 lower part.

[0042] The tightening portion 5 is screwed around the external thread portion 4 by the internal thread portion 51 thereof to adjust the distance between the in-line screwdriver bit 2 and the pocket portion 52, so that the screw head 6 is firmly stuck in one Between the font screwdriver bit 2 and the pocket head 52, the screwdriver bit 2 can be tightly held against the inline groove of the upper portion of the screw head 6.

[0043] FIGS. 5 and 6 show a specific embodiment of the auxiliary device for a screwdriver of the present invention.

7 is a perspective view showing a specific embodiment of the embodiment of the embodiment shown in FIGS. 5 and 6 for use with a screwdriver and a manual screwdriver shaft. It is stated that the auxiliary device of the screwdriver can be applied to the field of manual screwdrivers.

8 is a perspective view showing a specific embodiment of the embodiment of the embodiment shown in FIGS. 5 and 6 for use with an auxiliary device for a screwdriver and a replaceable and detachable rod of the electric screwdriver. [0045] FIG. It is stated that the auxiliary device of the screwdriver can be applied to the field of electric screwdrivers.

The auxiliary device for a screwdriver of the present embodiment is composed of an external thread portion 4 and a pocket portion 5.

[0047] In combination with the various types of screwdrivers, the external thread portion 4 of the auxiliary device for the screwdriver and the screwdriver shaft 1 of the present embodiment are non-integrated and detachable, and the external thread portion 4 is axially provided with a hole. The screwdriver rod body 1 can be inserted into the hole and sleeved in the hole, and two small screw holes are symmetrically arranged on the upper side of the external thread portion 4, and the small screws are tightened in the two small screw holes to make the external thread portion 4 and The screwdriver rod body 1 is connected. You can also loosen the small screw and remove it from the screwdriver shaft 1 without using it.

[0048] The screwdriver body 1 referred to herein includes not only a fixed screwdriver body but also a replaceable and detachable screwdriver body (for example: a replaceable, detachable electric screwdriver body, and in many cases it is directly called Electric screwdriver head).

[0049] The lap portion 5 is provided with an internal thread portion 51, and the internal thread portion 51 is hinged with the body of the lap portion 5, and the internal thread of the internal thread portion 51 and the external thread of the external thread portion 4 are matched with each other, and can be externally threaded. 4 screw up.

[0050] The pocket portion 5 is further provided with a pocket portion 52 for gripping the lower portion of the screw head 6.

[0051] The effect of providing the internal thread portion 51 on the pocket portion 5 is that the pocket portion 5 is screwed around the external thread portion 4 by the internal thread portion 51 thereof to adjust the distance between the driver bit 2 and the pocket portion 52, The screw head 6 can be firmly stuck Between the driver bit 2 and the gripping head 52, the screwdriver bit 2 can be tightly held against the recess in the upper portion of the screw head 6.

[0052] The auxiliary device for the screwdriver of the embodiment can be connected with the existing manual or various power screwdriver body by a standardized interface. When used together with the existing screwdriver, the screw can be prevented from slipping and the screwdriver can be prevented. The cutter head slides, saves the screw, and greatly reduces the required thrust on the screw

[0053] FIG. 9 shows another embodiment of the auxiliary device for a screwdriver of the present invention.

[0054] The auxiliary device for the screwdriver of the present embodiment is composed of the external thread portion 4 and the pocket portion 5.

[0055] In combination with the various types of screwdrivers, the external thread portion 4 of the auxiliary device for the screwdriver of the present embodiment is welded integrally with the screw cutter body 1.

[0056] The screwdriver body 1 described herein includes not only a fixed screwdriver body but also a replaceable and detachable screwdriver body (for example: a replaceable, detachable electric screwdriver body, and in many cases it is directly called Electric screwdriver head).

[0057] The lap portion 5 is provided with an internal thread portion 51, and the internal thread portion 51 is hinged with the body of the lap portion 5, and the internal thread of the internal thread portion 51 and the external thread of the external thread portion 4 are matched with each other, and may be externally threaded. 4 screw up.

[0058] The pocket portion 5 is further provided with a pocket portion 52 for gripping the lower portion of the screw head 6.

[0059] The effect of providing the internal thread portion 51 on the pocket portion 5 is that the pocket portion 5 is screwed around the external thread portion 4 by the internal thread portion 51 thereof to adjust the distance between the driver bit 2 and the pocket portion 52, The screw head 6 can be securely caught between the driver bit 2 and the pocket head 52, and the driver bit 2 can be tightly held against the recess in the upper portion of the screw head 6.

Industrial applicability

[0060] With the auxiliary device of the screwdriver or the screwdriver of the above specific embodiment, when tightening the screw, there is no need to additionally apply a force to prevent the screwdriver bit from slipping off the upper groove of the screw head, thereby preventing the screw head from slipping. The wire can prevent the screwdriver head from slipping, save the screw, and greatly reduce the required thrust of the screw.

Sequence table free content

The specific embodiments described above are only some embodiments of the present invention, and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims. Types, where similar structures and variations of the invention are employed, are intended to be included within the scope of the invention.

Claims

Claim

[Claim 1] A non-slip wire and labor-saving screwdriver is a screwdriver body (1), a screwdriver bit (2), a hand portion (3), an external thread portion (4) provided on the rod body (1), and The pocket portion (5) is composed of:

The lap portion (5) is further provided with an internal thread portion (51), the internal thread of the internal thread portion (51) and the external thread of the external thread portion (4) on the rod body (1) are matched with each other, and can be externally threaded (4) top screwing; the pocket (5) is also provided with a pocket (52), and the pocket (52) is used to pocket the lower portion of the screw head (6);

The effect of providing the internal thread portion (51) on the pocket portion (5) is: the pocket portion (5) is screwed around the external thread portion (4) by its internal thread portion (51) to adjust the driver bit (2) The distance from the head (52) allows the screw head (6) to be securely caught between the driver bit (2) and the gripping head (52) and allows the screwdriver bit (2) Hold the groove on the top of the screw head (6) tightly.

[Claim 2] The screwdriver according to claim 1, wherein:

The lap head (52) is pivotally connected to the internal thread portion (51) through the connecting portion (53); the V-shaped card slot or the U-shaped card slot is provided on the lap head (52);

By adjusting the angle of the head (52) around the pivot, the V-shaped card slot or the U-shaped slot of the pocket (52) is tightly clamped to the lower portion of the screw head (6).

[Claim 3] The screwdriver according to claim 1, wherein:

The head (52) is provided as a pair or a plurality of chucks of the clamp;

Each of the chucks is connected to the internal thread portion (51) through a respective connecting portion (53); each of the chucks and the respective connecting portion (53) is provided as a clamp that can be twisted, and the function thereof is: in the case of applying a clamping force Next, each of the chucks can collectively clamp the lower portion of the screw head (6).

[Claim 4] The screwdriver according to claim 3, wherein:

The internal thread portion (51) is further provided with an external thread (54);

And a force applying portion (55), the force applying portion (55) is provided with an internal thread matched with the external thread (54), and the urging portion (55) can be screwed around the internal thread portion (51);

By screwing the urging portion (55), the urging portion (55) is tightened to the extension portion of each of the connecting portions (53) or the respective connecting portions (53), and a clamping force is applied to the clamp to tightly clamp the screw head (6). ) the lower part.

[Claim 5] The screwdriver according to claim 1, wherein:

The external threaded portion (4) and the screwdriver rod body (1) may be integrally fixedly connected;

The external threaded part (4) and the screwdriver rod body (1) can also be connected by a non-integrated detachable connection with a screwdriver body (1) by a locking device, and the locking device can be loosened without using a cymbal. Remove the screwdriver shaft (1).

[Claim 6] An auxiliary device for a screwdriver is composed of an external thread portion (4) and a pocket portion (5), which can make the screwdriver slip-resistant and labor-saving, and is characterized by:

When used with various types of screwdrivers, the external threaded part (4) of the auxiliary device and the screwdriver rod body (1) can be fixedly connected in an integrated manner; a non-integrated detachable connection can also be used, with a locking device and a screwdriver The rod body (1) is connected, and the locking device can be loosened without using the cymbal, and it is removed from the screwdriver rod body (1);

The lap portion (5) is provided with an internal thread portion (51), the internal thread of the internal thread portion (51) and the external thread of the external thread portion (4) are matched with each other, and can be screwed on the external thread portion (4); a pocket (52) is also provided on the pocket (5), and the pocket (52) is used to pocket the lower portion of the screw head (6);

The effect of providing the internal thread portion (51) on the pocket portion (5) is: the pocket portion (5) is screwed around the external thread portion (4) by its internal thread portion (51) to adjust the driver bit (4) The distance from the head (52) allows the screw head (6) to be securely caught between the driver bit (4) and the pocket (52) and allows the screwdriver bit (4) Hold the groove on the top of the screw head (6) tightly.

[Attachment 7] The auxiliary device of the screwdriver according to claim 6, wherein:

The external thread portion (4) has a hole in the axial direction, and the screwdriver shaft (1) can be inserted into the hole to be fitted in the hole.

[Attachment 8] The auxiliary device of the screwdriver according to claim 6 or 7, wherein:

The internal thread portion (51) of the pocket portion (5) is hinged to the body portion of the pocket portion (5).