CN111037497A

CN111037497A - Prevent screwdriver accessory of screw and flat bed bullet pad landing

Info

Publication number: CN111037497A
Application number: CN201911252743.7A
Authority: CN
Inventors: 邸文波
Original assignee: Beijing Hangxing Machinery Manufacturing Co Ltd
Current assignee: Beijing Hangxing Machinery Manufacturing Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-04-21
Anticipated expiration: 2039-12-09
Also published as: CN111037497B

Abstract

The invention provides a screwdriver accessory comprising a main sleeve, an auxiliary sleeve, an inner sleeve and a lifting handle, wherein the main sleeve and the auxiliary sleeve are both made by cutting a side wall of a hard round tube with a thin-wall plug at one end along the axial direction and respectively comprise a connecting section, a supporting section and a fork arm, the fork arm is formed by cutting the thin-wall plug into a U-shaped groove, the supporting section and the connecting section are both cut into C-shaped sections, the C-shaped opening of the supporting section is larger than that of the connecting section, the connecting section of the auxiliary sleeve is detachably sleeved on the front half section of the connecting section of the main sleeve in a way of matching with the C-shaped opening, the inner sleeve is made of elastic materials, the cross section of the main sleeve is the same as that of the connecting section, the main sleeve is nested and configured in the connecting section of the main sleeve in a way of matching with the C-shaped opening, the screwdriver handle is a component with a long strip-shaped straight arm and a finger sleeve ring at one end, and the lifting handle is detachably connected to the rear half section of the connecting section of the main sleeve through the other end of the lifting handle. The invention is convenient for the screwdriver to install the screw and the gasket in a narrow space without falling off.

Description

Prevent screwdriver accessory of screw and flat bed bullet pad landing

Technical Field

The invention belongs to the field of structural tools of screwdriver accessories for preventing screws and flat cushion elastic pads from sliding off, and relates to an accessory used together with a common screwdriver, so that the screws and the flat cushion elastic pads do not fall off when the screws are installed. The straight cross screwdriver can be universally inserted and is suitable for assembling screws in narrow spaces.

Background

The typical mounting screws are: one hand holds the screw with the flat cushion and the other hand holds the screwdriver to prop against the screw for screwing, and the screw and the washer are small in size and are inconvenient to find once falling off, and especially when the screw and the washer fall in a narrow space which cannot be operated by two hands and are scattered in equipment, safety and redundant hidden danger exist.

At present, although there are magnetic screwdrivers, they are not reliable when the screw is fitted with a flat washer. When screws and washers of high-quality stainless steel and non-magnetic-conducting materials are encountered, the screw driver with magnetism is basically ineffective.

Disclosure of Invention

In order to solve the problems, the invention provides a screwdriver accessory capable of preventing a screw and a flat cushion elastic pad from sliding off, which is convenient to operate in a narrow space, and can be operated by one hand without holding the screw when the screwdriver is screwed. It is more reliable than the screwdriver with magnetic head and has the same effect on the screw, flat pad and elastic pad of non-magnetic material.

The screwdriver accessory for preventing the screw and the flat cushion elastic pad from sliding comprises a main sleeve, an auxiliary sleeve, an inner sleeve and a lifting handle, wherein the main sleeve and the auxiliary sleeve are both made by cutting a side wall of a hard round tube with a thin-wall plug along the axial direction and respectively comprise a connecting section, a supporting section and a fork arm, the fork arm is formed by cutting the thin-wall plug into a U-shaped groove, the supporting section is positioned between the fork wall and the connecting section, the supporting section and the connecting section are both cut into a C-shaped section, the C-shaped opening of the supporting section is larger than that of the connecting section, the connecting section of the auxiliary sleeve is detachably sleeved on the front half section of the connecting section of the main sleeve in a way of matching with the C-shaped opening, after the clamping sleeve is arranged, the distance between the two fork arms is adjusted through the axial movement of the main sleeve and the auxiliary sleeve, so that the flat cushion ring and the spring cushion ring can be filled in the screwdriver accessory, and the inner sleeve is made of, the cross section of the screwdriver is the same as that of the connecting section, and the screwdriver is nested in the main sleeve connecting section in a C-shaped opening matching mode and used for clamping the long handle of the screwdriver, so that the cross-head screwdriver can be inserted through the cross-head screwdriver, and the cross-head screwdriver is universal. The lifting handle is a component with a finger sleeve ring at one end of a long strip-shaped straight arm, the other end of the lifting handle is detachably connected to the rear half section of the connecting section of the main sleeve, and when the screwdriver is held by a hand in the operation process, a finger can penetrate into the finger sleeve ring, so that the connection reliability of the screw, the gasket and the screwdriver is improved.

Preferably, the inner diameter of the sleeve used by the auxiliary sleeve is equal to the outer diameter of the sleeve used by the main sleeve, the connecting sections are all provided with C-shaped sections with arc lengths larger than 180 degrees, the supporting sections are all provided with C-shaped sections with arc lengths smaller than or equal to 180 degrees, the fork arms are all made by cutting thin-wall plugs into vertical walls with U-shaped grooves, and the openings of the U-shaped grooves are matched with the C-shaped openings of the supporting sections and the connecting sections.

Preferably, a long hole is formed in the side wall, opposite to the C-shaped opening, of the rear half section of the main sleeve connecting section, a screw hole is formed in the rear side of the long hole, the inner sleeve is fixed to the main sleeve connecting section through a screw, and a nut for screwing the screw is located on the outer side wall of the main sleeve.

Preferably, the other end of the lifting handle is provided with an elastic piece, the length of the elastic piece is larger than that of the long hole, the width of the elastic piece is smaller than that of the long hole, a through hole is formed in the long arm located on the rear side of the elastic piece, and when the elastic piece is inserted into the long hole, the through hole is sleeved on the nut in a penetrating mode.

Preferably, the arc length of the inner surface of the auxiliary sleeve connecting stage is greater than the arc length of the outer surface of the main sleeve connecting stage, the auxiliary sleeve is provided with a limiting piece, the main sleeve and the main sleeve are integrally assembled through screwing and clamping, and the main sleeve is limited by the limiting piece to be screwed in place.

Preferably, the inner sleeve is made of a plastic pipe or a rubber pipe, and the section of the inner sleeve is C-shaped with an arc length larger than 180 degrees. The inner diameter of the screwdriver is slightly smaller than the diameter of the screwdriver handle, so that the screwdriver can hold the long handle of the screwdriver, and the cross-head screwdriver can be inserted through the cross-head screwdriver.

The invention has the beneficial effects that: the auxiliary sleeve and the lifting handle can be rapidly assembled and disassembled on the main sleeve according to requirements

1. The fitting is universal for a straight cross screwdriver, the front end of the straight cross screwdriver is larger than that of the cross screwdriver,

2. the screwdriver is convenient to operate in a narrow space, does not need the other hand to hold the screw when being screwed, and can be operated by one hand. When the lifting handle is installed on the accessory, the clamping force on the screw washer is larger, and the screw is screwed into the threaded hole more easily and accurately.

3. The clamping mode of the screw washer is more reliable than that of the magnetic screwdriver head, and the screw washer does not fall off in 360-degree operation. The same effect is achieved for the screw, the flat pad and the elastic pad which are made of non-magnetic conducting materials.

4. The accessory can be quickly disassembled and assembled as required, and when the screw does not have the elastic pad, the auxiliary sleeve can be quickly disassembled from the main sleeve only by using the main sleeve. The reliability is strong: can be used in certain live-wire operation occasions.

Drawings

FIG. 1 is a schematic view of the screwdriver fitting for preventing the screw and the flat cushion from sliding down.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Detailed Description

Embodiments of the invention are further described below with reference to the accompanying drawings:

as shown in fig. 1 and 2, the mechanism includes: the auxiliary sleeve 1, the inner sleeve 2, the lifting handle 3 and the main sleeve 4 are shown as a flat washer 5, a spring washer 6, a slotted cylinder head screw 7, a screwdriver 8, a hexagonal thin nut 9 and a screw 10.

The main sleeve 4 and the auxiliary sleeve 1 are both made by cutting the side wall of a hard round pipe with a plug wall along the axial direction, a fork arm with a U-shaped groove is formed by cutting the plug wall at the front end part, the rear part is divided into two sections, the cross sections are C-shaped, and specifically, the main sleeve 4 is provided with the U-shaped groove at the front end and plays a role in clamping the slotted cylindrical head screw 7. The rear portion is divided into two sections, the rear section having a C-shaped cross-section with an arc length greater than 180, i.e., the surface arc length is greater than the radius arc length. The front section has a C-shaped cross-section with an arc length of 180 DEG or less. The inner sleeve 2 with the C-shaped section is arranged in the pipe with the C-shaped section at the rear section, so that the straight cross screwdriver 8 can be inserted. The inner sleeve 2 is made of elastic materials such as a plastic pipe or a rubber pipe, and the long handle part of the screwdriver 8 is clasped by the tension degree of the inner sleeve 2. The inner sleeve 2 can be selected according to the screwdrivers 8 with different thicknesses. The structure of the auxiliary sleeve 1 is the same as that of the main sleeve 4, and the inner diameter of the auxiliary sleeve is equal to the outer diameter of the main sleeve 4.

Specifically, the inner sleeve 2 is nested into the main sleeve 4, the auxiliary sleeve 1 is screwed on the main sleeve 4, and the slotted cylinder head screw 7 penetrates through the flat washer 5 and the spring washer 6. The flat washer 5 and the spring washer 6 are placed between the two fork arms of the main sleeve and the auxiliary sleeve, the slotted cylinder head screw 7 penetrates through the U-shaped groove to be placed in the U-shaped groove, the screw driver 8 is inserted into the inner sleeve 2 from the rear end, and the inserted screw driver 8 props against the slotted cylinder head screw 7 to be screwed. At the moment, the U-shaped groove clamps the slotted cylindrical head screw 7, the flat washer 5 and the spring washer 6, the plastic pipe of the inner sleeve 2 clamps the screwdriver 8 coaxially with the slotted cylindrical head screw 7, after the slotted cylindrical head screw 7 is screwed into the threaded hole, the screwdriver 8 drives the main sleeve and the auxiliary sleeve to move towards the side surface, the screwdriver and accessories are separated from the slotted cylindrical head screw 7, the screwdriver 8 is pulled out from the sleeve, and the screwdriver 8 is recovered to be original and is continuously screwed with the slotted cylindrical head screw 7 to complete installation.

Handle 3 the handle is rectangular shape straight arm shape, and one end has the flexure strip, and the other end has the finger lantern ring, inserts the flexure strip of its one end in the long circular slot on the main sleeve 4 lateral wall, and its self has the through-hole, just can insert on the thin nut 9 of hexagonal, accomplishes the installation. The lifting handle 3 has the functions of: provide complementary unit in the operation process, it is more reliable to hold centre gripping screwdriver 8 tightly than the single plastic tubing that leans on main cover 4, carries handle 3 to push down, and screwdriver 8 and fluting cylinder cap screw 7 separation carry handle 3 to draw upwards, and screwdriver 8 withstands fluting cylinder cap screw 7 head, forms the bigger clamping-force that prevents that fluting cylinder cap screw 7 from dropping.

The flat washer 5 and the spring washer 6 are placed between the two U-shaped grooves of the main sleeve 4 of the auxiliary sleeve 1, the slotted cylindrical head screw 7 penetrates through the two U-shaped grooves, and the head of the slotted cylindrical head screw 7 is tightly propped by the screwdriver 8, so that the screwdriver 8 can coaxially clamp the flat washer 5, the spring washer 6 and the slotted cylindrical head screw 7 through accessories.

The inner sleeve 2 is fixed on the main sleeve 4 through a screw 10 and a hexagonal thin nut 9, and the cap of the screw 10 is flush with the inner wall of the inner sleeve 2 and provides a mounting point for the lifting handle 3.

The front end of the auxiliary sleeve 1 and the main sleeve 4 are both provided with U-shaped grooves, the section of the rear section of the auxiliary sleeve is C-shaped, the surface arc length is larger than the arc length of the main sleeve 4, the auxiliary sleeve can be screwed on the main sleeve 4 within 1 second, and the flat washer 5 and the spring washer 6 can be accommodated along the axis movement, so that the spring washer 6 does not influence the coaxiality of the grooved cylindrical head screw 7 and the screwdriver 8 after being clasped. The side surface of the auxiliary sleeve 1 is provided with a limiting sheet, so that the U-shaped groove is coaxial when the main sleeve 4 and the auxiliary sleeve 1 are assembled into a whole,

the auxiliary sleeve and the lifting handle can be rapidly disassembled and assembled according to requirements. Such as: when the screw has no elastic pad, the auxiliary sleeve can be quickly detached from the main sleeve only by using the main sleeve.

The lifting handle 3 is of a resilient material so as not to interfere with the screwdriver 8. The front end of the lifting handle 3 is inserted into a long circular groove at the rear end of the main sleeve 4, and the lifting handle 3 is installed and supported by the main sleeve 4, the screw 10 and the hexagonal thin nut 9 and can be assembled and disassembled in 1-2 seconds as required.

Claims

1. The utility model provides a prevent screwdriver accessory of screw and flat cushion bullet pad landing which characterized in that: the clamping sleeve comprises a main sleeve, an auxiliary sleeve, an inner sleeve and a lifting handle, wherein the main sleeve and the auxiliary sleeve are both made by cutting a side wall of a hard circular tube with a thin-wall plug along the axial direction and respectively comprise a connecting section, a supporting section and a fork arm, the fork arm is formed by cutting a U-shaped groove on the wall of the thin-wall plug, the supporting section is positioned between the fork wall and the connecting section, the supporting section and the connecting section are both cut into a C-shaped cross section, the C-shaped opening of the supporting section is larger than that of the connecting section, the connecting section of the auxiliary sleeve is detachably sleeved on the front half section of the connecting section of the main sleeve in a way of matching the C-shaped openings, after the clamping sleeve is clamped, the distance between the two fork arms is adjusted through the axial movement of the main sleeve and the auxiliary sleeve, so that a flat gasket and a spring gasket can be filled in the clamping sleeve, the inner sleeve is made of an elastic material, the cross section of the inner sleeve is the elastic material, the shape of the inner sleeve is the inner sleeve, the screwdriver handle is used for clamping and holding the long handle of the screwdriver, the lifting handle is a component with a finger sleeve ring at one end of a long strip-shaped straight arm, the other end of the lifting handle is detachably connected to the rear half section of the connecting section of the main sleeve, and in the operation process, when the screwdriver is held by a hand, a finger can penetrate into the finger sleeve ring to carry out operation.

2. The screwdriver accessory for preventing the screw and the flat cushion from sliding down according to claim 1, wherein: the inner diameter of the sleeve used by the auxiliary sleeve is equal to the outer diameter of the sleeve used by the main sleeve, the connecting sections are all provided with C-shaped sections larger than 180 degrees of arc length, the supporting sections are all provided with C-shaped sections smaller than or equal to 180 degrees of arc length, the fork arms are all made by cutting thin-wall plugs into vertical walls with U-shaped grooves, the openings of the U-shaped grooves are matched with the C-shaped openings of the supporting sections and the connecting sections, and the width of each U-shaped groove is slightly larger than the diameter of a screw and smaller than the diameter of a screw cap.

3. The screwdriver accessory for preventing the screw and the flat cushion from sliding down according to claim 2, wherein: the side wall of the rear half section of the main sleeve connecting section, which is opposite to the C-shaped opening, is provided with a long hole, the rear side of the long hole is provided with a screw hole, the inner sleeve is fixed on the connecting section of the main sleeve by using a screw, and a nut for screwing the screw is positioned on the outer side wall of the main sleeve.

4. The screwdriver accessory for preventing the screw and the flat cushion from sliding down according to claim 3, wherein: the other end of the lifting handle is provided with an elastic piece, the length of the elastic piece is larger than that of the long hole, the width of the elastic piece is smaller than that of the long hole, a through hole is formed in the long arm located on the rear side of the elastic piece, and when the elastic piece is inserted into the long hole, the through hole is sleeved on the nut in a penetrating mode.

5. The screwdriver accessory for preventing the screw and the flat cushion from sliding down according to claim 1, wherein: the arc length of the inner surface of the connecting section of the auxiliary sleeve is larger than that of the outer surface of the connecting section of the main sleeve, the auxiliary sleeve is provided with a limiting protrusion piece, the main sleeve and the main sleeve are clamped into a whole through screwing, and the main sleeve is limited to be screwed in place through the limiting protrusion piece.

6. The screwdriver accessory for preventing the screw and the flat cushion from sliding down according to claim 1, wherein: the inner sleeve is made of a plastic circular tube or a rubber circular tube, the section of the inner sleeve is C-shaped with an arc length of more than 180 degrees, and the inner diameter of the inner sleeve is slightly smaller than the diameter of the taper shank.