CN216991681U

CN216991681U - Screwdriver head capable of fixing screws

Info

Publication number: CN216991681U
Application number: CN202122418896.3U
Authority: CN
Inventors: 李凯
Original assignee: Weifang Hongxu Electronic Technology Co ltd
Current assignee: Weifang Hongxu Electronic Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-07-19
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a screwdriver bit capable of fixing a screw, which relates to the technical field of maintenance tools and is used for solving the problem of poor stability when a screwdriver screws the screw, and comprises a screwdriver core, a screwdriver rod, a bit, an outer sleeve and a grapple, wherein a return spring is arranged between a positioning screw and a positioning cap, the outer sleeve is in sliding connection with the screwdriver core, a snap ring is arranged in the outer sleeve and sleeved on the screwdriver core, the end of the outer sleeve, which is close to the bit, is provided with through holes, the grapple is provided with two grapple, the grapple comprises a coil tail, positioning columns, a connecting rod and grapple, the positioning columns of the two grapple respectively penetrate through the two through holes, an elastic ring is arranged between the two coil tails and is used for providing outward tension for the coil tail, therefore, the screwdriver bit is not limited by the material of the screw, convenient to use, supplementary respond well, stability when having improved the screwdriver and twisting the screw.

Description

Screwdriver head capable of fixing screws

Technical Field

The utility model relates to the technical field of maintenance tools, in particular to a screwdriver bit capable of fixing a screw.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. Screws are the most commonly used fasteners used in a variety of products and structures. As is well known, the most commonly used tool for indexing screws is a screwdriver, and for the convenience of operation, the bit of the screwdriver is generally magnetic and is used for assisting in fixing screws. However, the magnetic screwdriver can only attract and fix the iron screw, and the non-magnetic stainless steel screw has no effect of magnetic attraction and fixation. Because the screw is usually tiny, does not have magnetic attraction to assist the screwdriver to carry out work, fix the screw just relatively difficultly like this, consequently most screwdrivers confine to can more convenient operation to the iron screw, when twisting stainless steel or other screw that do not have the effect to magnetism, appear comparatively troublesome and labouring, do not have the assistance of magnetic force, poor stability when twisting the screw.

Therefore, the present invention is invented by considering the defects of the above-mentioned schemes in actual manufacturing and implementation and use, and with the help of professional knowledge and experience, and after many kinds of ingenuity and experiments, the present invention provides a screwdriver bit capable of fixing a screw, which is used for solving the problem of poor stability of a screwdriver during screwing the screw.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screwdriver bit capable of fixing a screw, which is used for solving the problem of poor stability of a screwdriver during screwing in the prior art.

The technical scheme of the utility model is realized as follows: a screwdriver bit capable of fixing screws comprises a screwdriver core, a screwdriver rod, a screwdriver bit, an outer sleeve and a grapple, wherein the screwdriver core is fixedly connected with the screwdriver rod, the screwdriver bit is positioned at a port of the screwdriver core far away from the screwdriver core, the screwdriver core is provided with a positioning screw and a positioning cap, a reset spring is arranged between the positioning screw and the positioning cap, the outer sleeve is in sliding connection with the screwdriver core, a snap ring is arranged in the outer sleeve and sleeved on the screwdriver core, the end of the outer sleeve close to the screwdriver bit is provided with two through holes, the two through holes are distributed on the opposite side walls of the outer sleeve, the grapple is provided with two grapple hooks, each grapple hook comprises a coil tail, two positioning columns, a connecting rod and two grapple fingers, the positioning columns of the two fingers respectively penetrate through the two through holes, and an elastic ring is arranged between the two coil tails, the elastic ring is used for providing outward tension for the tail.

In a preferred embodiment, the screwdriver core is hexagonal in shape.

In a preferred embodiment, the snap ring is located between the return spring and the positioning cap.

In a preferred embodiment, the inner diameter of the outer sleeve is larger than the diameter of the positioning cap, the inner diameter of the snap ring is smaller than the diameter of the positioning cap, and the inner diameter of the outer sleeve is larger than the diameter of the positioning screw.

In a preferred embodiment, the screwdriver core is provided with an annular groove.

In a preferred embodiment, the positioning column is provided with a fixing pin, the fixing pin is located at an end of the positioning column, which protrudes out of the through hole, and the fixing pin is used for fixing the position of the positioning column.

As a preferred embodiment, the roll-tail and the hand grip are distributed at two ends of the connecting rod, the positioning column is arranged between the roll-tail and the hand grip, and the two hand grips are inward.

The utility model has the beneficial effects that:

1. the screw tightening device is provided with the grapple for assisting in screwing the screw, the elastic ring for providing tension outwards is arranged between the two curls, the two grapple are drawn close inwards under the action of the lever principle to achieve the effect of grabbing and clamping the screw, so that the screw can be conveniently screwed, manual assistance is not needed, the screw tightening device is not limited by screw materials, the use is convenient, the assistance effect is good, and the stability of the screwdriver in screwing the screw is improved.

2. When the screw is screwed down, the stability of the screw is higher and higher along with the screwing of the screw, the assistance of the grapple is not needed, at the moment, the outer sleeve and the grapple move backwards to avoid the influence of the grapple on the further screwing of the screw by the screwdriver, and after the screw is screwed down, the outer sleeve and the grapple can return to the original positions under the action of the reset spring so as to be convenient for grabbing and clamping the next screw, so that the mechanical degree is higher, and the use experience is better.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a state diagram of the present invention in use;

fig. 2 is a schematic view of the construction of the grapple of the present invention.

In the drawings, 1-screwdriver core; 2-a set screw; 3-positioning the cap; 4-elastic ring; 5-a fixed pin; 6-grappling; 61-rolling the tail; 62-a positioning column; 63-a connecting rod; 64-hand grip; 7-a return spring; 8-a snap ring; 9-an outer sleeve; 10-a through hole; 11-a cutter bar; 12-cutter head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a screwdriver bit capable of fixing a screw comprises a screwdriver core 1, a screwdriver rod 11, a bit 12, an outer sleeve 9 and a grapple 6, wherein the screwdriver core 1 is fixedly connected with the screwdriver rod 11, the bit 12 is located at the port of the end of the screwdriver rod 11 far away from the screwdriver core 1, the screwdriver core 1 is provided with a positioning screw 2 and a positioning cap 3, a return spring 7 is arranged between the positioning screw 2 and the positioning cap 3, the outer sleeve 9 is slidably connected with the screwdriver core 1, a snap ring 8 is arranged in the outer sleeve 9, the snap ring 8 is sleeved on the screwdriver core 1, the end of the outer sleeve 9 close to the bit 12 is provided with two through holes 10, the two through holes 10 are distributed on the opposite side walls of the outer sleeve 9, the grapple 6 is provided with two grapple 6, the grapple 6 comprises a roll tail 61, two positioning columns 62, a connecting rod 63 and a grapple 64, the positioning columns 62 of the two grapple 64 respectively pass through holes 10, an elastic ring 4 is arranged between the two curls 61, and the elastic ring 4 is used for providing outward tension for the curls 61. The relative position of the scheme is based on the view angle of fig. 1.

The screwdriver core 1 is hexagonal and matched with the core slot of the external screwdriver sleeve.

The snap ring 8 is positioned between the return spring 7 and the positioning cap 3.

The inner diameter of the outer sleeve 9 is larger than the diameter of the positioning cap 3, the inner diameter of the snap ring 8 is smaller than the diameter of the positioning cap 3, and the inner diameter of the outer sleeve 9 is larger than the diameter of the positioning screw 2.

The screwdriver core 1 is provided with an annular groove which is used for being clamped with relevant parts of an external screwdriver sleeve.

The positioning column 62 is provided with a fixing pin 5, the fixing pin 5 is located at the end of the positioning column 62 extending out of the through hole 10, and the fixing pin 5 is used for fixing the position of the positioning column 62.

The roll tail 61 and the hand grips 64 are distributed at two ends of the connecting rod 63, the positioning columns 62 are arranged between the roll tail 61 and the hand grips 64, and the two hand grips 64 are inwards in the direction, so that the screws can be gripped.

The utility model is realized in such a way that:

this scheme relies on special physical structure, utilizes lever principle to assist the screw that needs to handle to the clamp force that tongs 64 produced, conveniently carries out further operation to it. The port of the grapple 6 of the scheme is two arc-shaped grabs 64, and the two grabs 64 can be matched to clamp small objects. In a normal state, the grapple 6 takes the positioning column 62 fixed by the fixing pin 5 as a pivot, the elastic ring 4 is sleeved on the upper and lower curly tail 61 at the left end, the elastic force provides an outward force, and under the action of a lever principle, the two grabs 64 are subjected to an inward force to grab the screw. When the device is used, a screw is firstly placed in the two hand grips 64, the two hand grips 64 clamp the screw under the action of external force to stabilize the screw, the screw stability is enhanced when the bolt is screwed down, the hand grips 64 are not needed to assist the screw, and at the moment, under the action of the external force provided manually, the screwdriver core 1 and the sleeve 9 outside the screwdriver rod 11 move backwards relative to the screwdriver core and the screwdriver rod 11 together with the two hand grips 6 to expose the screwdriver head 12, so that the screw can be further screwed down. After screwing, the outer sleeve 9 together with the catch 6 will return to its original position under the action of the return spring 7. On the premise of not influencing the screwing operation of the screw, the screw machining auxiliary tool has a better auxiliary effect on the screw to be machined, so that the screw is more stable.

The utility model has the beneficial effects that:

the screw tightening device is provided with the grabbing hooks 6 for assisting in screwing the screw, the elastic ring 4 for providing tension outwards is arranged between the two coil tails 61, and the two grabbing hooks 6 are drawn together inwards under the action of the lever principle to achieve the effect of grabbing and clamping the screw, so that the screw can be conveniently tightened without manual assistance and limitation of screw materials.

According to the utility model, when the screw is screwed, the stability of the screw is higher and higher along with the screwing of the screw, the assistance of the grab hook 6 is not needed any more, at the moment, the outer sleeve 9 and the grab hook 6 move backwards to avoid the influence of the grab hook 6 on the further screwing of the screw by the screwdriver, and after the screw is screwed, the outer sleeve 9 and the grab hook 6 return to the original positions under the action of the return spring 7, so that the next screw can be grabbed and clamped conveniently, the mechanization degree is higher, and the use experience is better.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention.

Claims

1. A screwdriver bit capable of fixing screws is characterized by comprising a screwdriver core, a screwdriver rod, a screwdriver bit, an outer sleeve and grapples, wherein the screwdriver core is fixedly connected with the screwdriver rod, the screwdriver bit is positioned at a port of the screwdriver core far away from the screwdriver core, a positioning screw and a positioning cap are arranged on the screwdriver core, a reset spring is arranged between the positioning screw and the positioning cap, the outer sleeve is in sliding connection with the screwdriver core, a snap ring is arranged in the outer sleeve and sleeved on the screwdriver core, through holes are formed in the end, close to the screwdriver bit, of the outer sleeve, the through holes are two, the two through holes are distributed in the opposite side walls of the outer sleeve, the number of the grapples is two, the grapples comprise a roll tail, positioning columns, connecting rods and grapples, and the positioning columns of the two grapples respectively penetrate through the two through holes, and an elastic ring is arranged between the two curled tails and used for providing outward tension for the curled tails.

2. A screwdriver bit as defined in claim 1, wherein said screwdriver core is hexagonal in shape.

3. A screwdriving bit as claimed in claim 1, wherein said snap ring is located between the return spring and the retaining cap.

4. A screwdriver bit as defined in claim 1, wherein the inner diameter of said outer sleeve is greater than the diameter of said locking cap, the inner diameter of said snap ring is less than the diameter of said locking cap, and the inner diameter of said outer sleeve is greater than the diameter of said locking screw.

5. A screwdriver bit as defined in claim 1, wherein said screwdriver core is provided with an annular recess.

6. The screwdriver bit capable of fixing a screw as claimed in claim 1, wherein the positioning post is provided with a fixing pin at the end of the positioning post protruding out of the through hole, and the fixing pin is used for fixing the position of the positioning post.

7. The screwdriver bit as claimed in claim 1, wherein the tail and the hand grip are disposed at two ends of the connecting rod, the positioning post is disposed between the tail and the hand grip, and the two hand grips are inwardly directed.