CN213971001U

CN213971001U - Damaged screw processing device

Info

Publication number: CN213971001U
Application number: CN202022893677.6U
Authority: CN
Inventors: 徐利明; 徐泽
Original assignee: Yuyao Yaxing Metal Products Co ltd
Current assignee: Yuyao Yaxing Metal Products Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-17
Anticipated expiration: 2030-12-03

Abstract

The application discloses a damaged screw processing device, which relates to the technical field of mechanical tools and comprises at least one reverse drill bit and at least one screw extractor, wherein the reverse drill bit comprises a first handle part and a drilling part, the drilling part is connected with the first handle part, cutting teeth are arranged on the drilling part, the cutting teeth are arranged on a first outer side surface according to a drill bit spiral line, and the reverse drill bit is used for drilling at the damaged screw; the screw extractor comprises a second handle part and an extracting part, the extracting part is connected with the second handle part, the extracting part is provided with a second outer side face, an extracting thread is arranged on the circumferential direction of the second outer side face, two first grooves are arranged in the bus direction of the second outer side face, the screw extractor is used for extracting a damaged screw, and the rotating direction of the spiral line of the drill bit is opposite to the rotating direction of the damaged screw. Therefore, the direction of the screw of the drill bit spiral line is set to be opposite to the direction of the screw damaged in the rotating direction, and the drill bit spiral line has the advantages of being labor-saving and convenient.

Description

Damaged screw processing device

Technical Field

The application relates to the technical field of mechanical tools, in particular to a damaged screw processing device.

Background

In real life, the screw is used as a fastener, and the application range of the screw is wide, such as furniture manufacture, home decoration and the like, and even on a wall or a steel product, the screw is used in a large amount, so that the screw referred to herein includes a conventional screw, and also includes fasteners such as a plurality of similar bolts and the like, such as expansion screws and the like which are driven into a wall. The bolts or screws are often directly broken due to the influence of the use environment, or due to the quality problem of the bolts or screws or excessive installation force, and the bolts or screws which are a little left outside the nuts (holes) can be taken out by pliers, and the most troublesome is that the bolts or screws are broken in the nuts (holes).

In the prior art, the way of taking out a bolt or a screw broken in a nut (hole) is as follows: directly chiseling out the broken screw in such a way that the thread in the screw hole is broken and the screw hole must be re-tapped; a sharp edge is used for carving a groove on the section, and then a straight screwdriver is used for twisting out a broken screw, so that the mode has the advantages of small acting point, difficulty in twisting and low efficiency; the three ways of firstly forming a plurality of small holes on the fracture surface of the fracture screw and then slowly twisting the fracture screw out by using a pointed cone and a hammer along the twisting-out direction of the screw require a great deal of effort of operators and have very low working efficiency.

The extractor in the prior art has poor material performance, easy brittle failure, poor product toughness, coarse product structure and coarse threads; the screw cannot be directly taken out, the screw can be used for drilling by matching with the twist drill, and when the screw is drilled, the cutting teeth of the twist drill rotate clockwise, so that the screw is screwed more tightly easily; the thread angle of the extractor is small, so that the depth of the screw is very deep when the screw is punched, and the screws with partial specifications cannot be used; and, when the screw is taken out by the extractor, the screw thread is easy to slip.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a damaged screw handling device that can remove a damaged screw.

The embodiment of the application is realized as follows:

a damaged screw handling device comprises at least one reverse drill and at least one screw extractor, wherein the reverse drill comprises a first shank part and a drilling part, the drilling part is connected with the first shank part, the drilling part is provided with a first outer side face, cutting teeth are arranged on the drilling part according to a drill spiral line, and the reverse drill is used for drilling at a damaged screw; the screw extractor comprises a second handle part and an extracting part, the extracting part is connected with the second handle part, the extracting part is provided with a second outer side face, extracting threads are arranged in the circumferential direction of the second outer side face, and two first grooves are arranged in the bus direction of the second outer side face; the screw extractor is used for extracting the damaged screw; wherein the rotation direction of the drill bit spiral line is opposite to that of the damaged screw.

In one embodiment, the extraction portion has a first outer top surface, and the outer diameter of the extraction portion decreases from the connection point of the extraction portion and the second handle portion to the first outer top surface.

In one embodiment, the two first grooves are symmetrically arranged along the axis of the extraction part; the first groove extends through the extraction portion and to the second shank portion.

In one embodiment, the second shank portion is coupled to the first shank portion for coupling the screw extractor to the reverse bit.

In one embodiment, the reverse drill bit and the screw extractor are integrally formed or detachably connected together.

In one embodiment, the number of cutting teeth is four or six.

In one embodiment, the helix angle of the bit helix is from 0 ° to 90 °.

In one embodiment, the screw extractor is made of steel.

In one embodiment, the thread form angle of the removal thread is saw-toothed.

In one embodiment, the screw extractor is provided with a plurality of screw extractors, and the diameters of the screw extractors are different from each other; the reverse drill bits are provided in plurality, and the diameters of the reverse drill bits are different from each other.

Compared with the prior art, the beneficial effect of this application is:

the utility model provides a damage screw processing apparatus, including screw extractor and reversal drill bit, can use the reversal drill bit earlier to punch, rethread screw extractor comes to take out the screw, convenient operation.

The utility model provides a revolve to with damage the spiral of screw to opposite, can not lead to the screw to twist tighter, make the more laborsaving light of screw dismantlement.

The utility model provides a screw extractor take out screw thread is unilateral big inclination screw thread, and is equipped with two zigzag microgrooves on the side of extractor, makes taking out of damaging the screw more convenient, laborsaving.

The screw extractor is made of impact-resistant tool steel, and the impact-resistant tool steel is good in toughness and not easy to break, so that the screw extractor is durable.

The utility model provides a damage screw processing apparatus, screw extractor and reversal drill bit respectively are equipped with 6 according to diameter specification from small to big, conveniently dismantle the damage screw that various models differ.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a damaged screw handling device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a damaged screw handling device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a screw extractor according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a reverse rotation drill bit according to an embodiment of the present application.

Icon: 1-damaging the screw handling device; 2-screw extractor; 21-a second handle; 210-a second outer side; 211-a first external top surface; 212-removal of threads; 213-first slot; 22-a take-out section; 3-reversing the drill bit; 31-a first handle; 32-drilling a hole part; 320-a first outer side; 321-cutting teeth.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Please refer to fig. 1, which is a schematic structural diagram of a damaged screw handling device 1 according to an embodiment of the present application. The damaged screw handling apparatus 1 of the present embodiment includes a screw extractor 2 and a reverse drill 3, the screw extractor 2 including a second shank portion 21 and an extraction portion 22, and the reverse drill 3 including a first shank portion 31 and a drilling portion 32. Screw extractor 2 is connected together through being connected of second stalk portion 21 and first stalk portion 31, with reversing drill bit 3, and screw extractor 2 can be detachable with reversing drill bit 3 and link together, can be integrated into one piece, also can be through modes such as welding, gluing, riveting and link together, and in this embodiment, screw extractor 2 is integrated into one piece with reversing drill bit 3.

The second shank 21 and the removing part 22 of the screw remover 2 are connected together, wherein the second shank 21 and the removing part 22 may be integrally formed, or may be connected together by welding, bonding, riveting, or the like, and in this embodiment, the second shank 21 and the removing part 22 are integrally formed.

The removing part 22 is in a truncated cone shape, and the removing part 22 has a second outer side surface 210 and a first outer top surface 211, wherein the outer diameter of the removing part 22 decreases from the connecting part of the removing part 22 and the second handle part 21 to the first outer top surface 211. The second outer side 210 is provided with a take-out screw 212 in a circumferential direction, and a thread form angle of the take-out screw 212 is triangular or zigzag. Two first grooves 213 are provided in the direction of the generatrix of the second outer surface, the two first grooves 213 are symmetrically provided along the axis of the extraction portion 22, and the first grooves 213 penetrate the extraction portion 22 and extend to the second shank portion 21. The first groove 213 may be a zigzag, a rectangle, a trapezoid, or the like, and in this embodiment, the first groove 213 is a zigzag.

The material of the screw extractor 2 may be selected from impact-resistant tool steel, chrome vanadium steel, carbon steel, chrome molybdenum steel, etc., and in this embodiment, the material of the screw extractor 2 is selected from impact-resistant tool steel (S2 tool steel).

The first shank 31 and the drilling portion 32 of the reverse drill 3 are connected together, wherein the first shank 31 and the drilling portion 32 may be integrally formed, or may be connected together by welding, bonding, riveting, or the like, and in this embodiment, the first shank 31 and the drilling portion 32 are integrally formed.

The drilling portion 32 of the reverse drill 3 has a first outer side surface 320, the drilling portion 32 is provided with cutting teeth 321, the cutting teeth 321 are arranged on the first outer side surface 320 according to a counterclockwise spiral line, the helix angle of the spiral line of the cutting teeth 321 is 0-90 °, the cutting teeth 321 have two, four or six, and the like, and in the embodiment, the number of the cutting teeth 321 is two.

In an operation process, when the head of the screw is broken due to environmental reasons and the like when the screw cannot be directly unscrewed through conventional operation, the reverse drill bit 3 is firstly used for drilling, and then the screw is taken out through the screw extractor 2, so that the operation is convenient.

Because the spiral of this embodiment drill bit helix is to the opposite with the spiral that damages the screw, can not lead to the screw to screw up tighter, makes to dismantle the screw laborsaving light more. In one embodiment, if the screw direction of the damaged screw is clockwise, the working direction of the reverse drill 3 (the direction of the helix of the drill) is counterclockwise.

Because the screw extractor 2 of this embodiment adopts the single-side large-inclination extraction thread 212, and the two saw-toothed first grooves 213 are disposed on the second outer side 210 of the screw extractor 2, the damaged screw can be extracted more conveniently and more easily.

The screw extractor 2 of the present embodiment is made of impact-resistant tool steel, which has good toughness and is not easily brittle, so that the screw extractor 2 is durable.

Fig. 2 is a schematic structural diagram of a damaged screw handling device 1 according to an embodiment of the present disclosure. The screw extractor 2 and the reverse drill bit 3 are provided with a plurality of screw extractors 2 and the reverse drill bit 3 which are integrally formed, the diameters of the screw extractors 2 are different from each other, and the diameters of the reverse drill bits 3 are also different from each other. In this embodiment, the number of the screw extractor 2 and the number of the reverse drill 3 are 6.

The application damages screw processing apparatus 1, screw extractor 2 and reverses drill bit 3 and respectively is equipped with 6 by little to big according to the diameter specification, conveniently dismantles the damage screw that various models differ.

Fig. 3 is a schematic structural diagram of a screw extractor 2 according to an embodiment of the present application. Please refer to fig. 4, which is a schematic structural diagram of a reverse drill 3 according to an embodiment of the present application.

Screw extractor 2 and reversal drill bit 3 respectively are equipped with a plurality ofly by little to big according to the diameter specification, and screw extractor 2 is not continuous with reversal drill bit 3 each other, for independent accessory separately, conveniently takes and arranges, and in this embodiment, screw extractor 2 respectively is equipped with 6 with reversal drill bit 3.

The remaining structure of the screw extractor 2 and the reverse drill 3 is identical to that shown in fig. 1 and will not be described in detail.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A damaged screw handling device, comprising:

at least one reverse bit, which comprises a first shank part and a drilling part, wherein the drilling part is connected with the first shank part, the drilling part is provided with a first outer side surface, cutting teeth are arranged on the drilling part according to a bit spiral line, and the reverse bit is used for drilling at a damaged screw; and

the screw extractor comprises a second handle part and an extracting part, the extracting part is connected with the second handle part, the extracting part is provided with a second outer side face, extracting threads are arranged in the circumferential direction of the second outer side face, and two first grooves are arranged in the bus direction of the second outer side face; the screw extractor is used for extracting the damaged screw;

wherein the rotation direction of the drill bit spiral line is opposite to that of the damaged screw.

2. A damaged screw handling device according to claim 1, wherein the extraction portion has a first outer top surface, the outer diameter of the extraction portion decreasing from the junction of the extraction portion and the second shank portion to the first outer top surface.

3. A damaged screw handling device according to claim 1, wherein the two first grooves are symmetrically arranged along an axis of the extraction portion;

the first groove extends through the extraction portion and to the second shank portion.

4. A damaged screw handling device according to claim 1, wherein the second shank portion is connected to the first shank portion for connection of the screw extractor to the reverse bit.

5. A damaged screw handling device according to claim 4, wherein the reverse bit is integrally formed with or detachably connected to the screw extractor.

6. A damaged screw handling device according to claim 1, wherein the cutting teeth have four or six.

7. A damaged screw handling device according to claim 1, wherein the helix angle of the drill helix is from 0 ° to 90 °.

8. A damaged screw handling device according to claim 1, wherein the material of the screw extractor is steel.

9. A damaged screw handling device according to claim 1, wherein the profile angle of the extraction thread is serrated.

10. A damaged screw handling device according to claim 1, wherein the screw extractor is provided in plurality, and the plurality of screw extractors are different in diameter from each other;

the reverse drill bits are provided in plurality, and the diameters of the reverse drill bits are different from each other.