CN211517320U - Screwdriver - Google Patents

Abstract

The utility model relates to the field of hardware tools, in particular to a screwdriver, which comprises a screw rod and a sleeve sleeved on the screw rod, wherein the outer surface of the screw rod is provided with a thread groove I, the inner surface of the sleeve is provided with a thread groove II matched with the thread groove I, the bottom end of the screw rod is provided with a tool bit which can rotate integrally with the screw rod and is used for matching with the screw, the top end of the screw rod is provided with a pressing device, the pressing device comprises a rotating component which is arranged at the top end of the screw rod and can rotate integrally with the screw rod, and a pressing block movably sleeved at the; the utility model discloses simple structure, it is with low costs, convenient to use, work efficiency is high.

Description

Screwdriver

Technical Field

The utility model relates to a hardware and tools field especially relates to a screwdriver.

Background

Many equipment in the life, the screw all needs to be used in mechanical device's equipment, it is fixed with each part through the screw, when using the screw, the mounting tool screwdriver is necessary, need utilize the screwdriver assistance with the screw fixed to mechanical part on, traditional screwdriver includes the grab handle, the tool bit that has the body of rod, when using, insert the tool bit cooperation on the tool bit, then need manual twist to move the grab handle, it rotates to drive the tool bit, and then the tool bit drills the screw rotation into mechanical part on, long-time manual rotation screwdriver, the hand can feel tired weak, if the screw that needs the installation is more, then manual work is inefficient, hard, electric screwdriver has appeared on the gradual market, although save strength, electric screwdriver cost is higher, the price is relatively more, and heavier.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, avoid screwdriver work efficiency low, hard, and provide a screwdriver, the utility model discloses simple structure, it is with low costs, convenient to use, work efficiency is high.

The purpose of the utility model is realized through following measures: the utility model provides a screwdriver, includes the screw rod, overlaps the sleeve on the screw rod, the screw rod surface is equipped with thread groove I, and the sleeve internal surface is equipped with thread groove I assorted thread groove II, the bottom of screw rod be equipped with can be used for cooperating the tool bit of screw with the integrative rotation of screw rod, the screw rod top is provided with press device, press device including locating the screw rod top can with the integrative pivoted runner assembly of screw rod, still including the activity suit in the pressing block at runner assembly top.

Preferably, the rod part of the cutter head is triangular prism-shaped, the bottom end of the screw rod is provided with a first groove matched with the rod part of the cutter head, and the cutter head is inserted into the first groove.

Preferably, the rotating assembly comprises a T-shaped block which is movably sleeved in the pressing block and can rotate in the pressing block, a second groove is formed in the bottom of the T-shaped block, a triangular prism-shaped connecting rod matched with the second groove is sleeved in the second groove, a third groove matched with the connecting rod is formed in the top of the screw rod, and the bottom of the connecting rod is sleeved in the third groove.

Preferably, the connecting rod is in a triangular prism shape with the same size as the rod part of the cutter head, and the inner diameters of the first groove, the second groove and the third groove are the same.

Preferably, the outer edge of the top end of the T-shaped block is provided with a rotating ball.

Preferably, an arc-shaped pressing rubber is bonded to the top of the pressing block.

Preferably, the sleeve is bonded with a rubber strip, and the surface of the rubber strip is concave.

The utility model has the advantages that: the utility model has the advantages of simple structure, high operation convenience, high work efficiency, time saving and labor saving, when being used for screwing up the screw, aim at tool bit and screw phase-match, one hand is pressed down gently and is made screw rod and screw alignment position according to the briquetting, the other hand promotes the sleeve downwards, the sleeve moves down simultaneously because supporting thread groove I, thread groove II effect, and then the screw rod drives the tool bit and takes place to rotate, rotating assembly and screw rod are integrative to carry out the pivoted simultaneously, and do not take place to rotate according to the briquetting, supplementary position of rectifying, help the promotion sleeve that the other hand can be more accurate, then tighten the screw according to the exact direction when the screw pivoted, and this screwdriver can also lift the tool bit off with pressing the subassembly, better accomodate and change the tool bit.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a front view of a screwdriver;

FIG. 2 is a schematic view of a pressing device;

FIG. 3 is a schematic view of a screw and a sleeve;

FIG. 4 is a schematic view of the sleeve structure;

FIG. 5 is a schematic view of a T-shaped block structure;

FIG. 6 is a schematic view of a connecting rod structure;

fig. 7 is a schematic view of a tool tip configuration.

In the figure: 1-screw rod, 2-sleeve, 3-thread groove I, 4-thread groove II, 5-tool bit, 6-pressing block, 7-T-shaped block, 8-connecting rod, 9-groove I, 10-groove II, 11-groove III, 12-rotating ball, 13-pressing rubber and 14-rubber strip.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, 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 specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: as shown in fig. 1-7, a screwdriver comprises a screw rod 1, a sleeve 2 sleeved on the screw rod, a thread groove i 3 is arranged on the outer surface of the screw rod, a thread groove ii 4 matched with the thread groove i 3 is arranged on the inner surface of the sleeve, namely, the sleeve 2 and the screw rod 1 are meshed with each other, so that the screw rod can rotate along the thread groove when the sleeve is pushed upwards or downwards, a tool bit 5 capable of rotating integrally with the screw rod for matching with a screw is arranged at the bottom end of the screw rod, the rod part of the tool bit 5 in the embodiment is triangular prism-shaped, a groove one 9 matched with the rod part of the tool bit is arranged at the bottom end of the screw rod, the top end of the tool bit 5 is inserted into the groove one 9, because the tool bit 5 is triangular prism, when the screw rod rotates, the tool bit 5 can rotate integrally with the screw rod 1, the tool bit is installed in, the cutter head in the drawing is drawn as a cross cutter head, is not limited to be cross-shaped in operation, and is matched with the corresponding cutter head according to the requirement of a screw.

Pressing device is installed on 1 top of screw rod, and pressing device is used for assisting the position of correcting tool bit and screw and corresponding when using this screwdriver, and pressing device is including locating the screw rod top can with the integrative pivoted rotating component of screw rod, still including the activity suit in the pressure piece 6 at rotating component top, presses the piece 6 not to take place to rotate promptly, does not influence rotating component simultaneously and rotates on pressing the piece. The rotating assembly comprises a T-shaped block 7 which is movably sleeved in the pressing block and can rotate in the pressing block, namely the top of the T-shaped block is sleeved in the pressing block 6, the bottom of the T-shaped block is leaked at the bottom of the pressing block, in order to ensure that the T-shaped block 7 can rotate more smoothly, a rotating bead 12 is arranged at the outer edge of the top end of the T-shaped block, the rotating bead 12 reduces the friction force with the inner cavity of the pressing block and can also fill certain lubricating oil into the inner cavity of the pressing block where the T-shaped block 7 is located, so that the T-shaped block 7 can rotate more smoothly, the rotating bead 12 can be arranged in a mode that the rotating bead with the volume more than half is wrapped at the inner edge of the top end of the T-shaped block, a groove II 10 is arranged at the bottom of the T-shaped block, a triangular prism-shaped connecting rod 8 matched with the groove II is sleeved in the groove, t-shaped piece 7 and screw rod 1 have been connected to the connecting rod promptly, simultaneously because the connecting rod is the triangular prism form, so after T-shaped piece and screw rod were connected to the connecting rod, when the screw rod took place to rotate, take connecting rod, T-shaped piece to be integrative the rotation, can not take place to rock, the connecting rod cartridge again in T-shaped piece and screw rod, can be convenient dismantle. The connecting rod is arranged into a triangular prism shape with the same size as the rod part of the cutter head, and the inner diameters of the first groove, the second groove and the third groove are the same, so that the positions of the pressing component at the top of the screw rod and the cutter head at the bottom of the screw rod can be interchanged. The arc-shaped pressing rubber 13 is bonded to the top of the pressing block, so that friction force is larger and the pressing block is more comfortable when a person who presses the rubber holds the pressing block. The sleeve is bonded with the rubber strip 14, the surface of the rubber strip is concave, namely the outer surface of the rubber strip is concave towards the inner direction of the sleeve, when a hand holds the sleeve, fingers can be buckled on the concave surface of the rubber strip, meanwhile, the friction force between the hand and the sleeve is increased by one rubber strip, and the sleeve is pushed upwards or downwards more smoothly and labor-saving.

Working mode, when used for tightening screws: the sleeve is pushed to the top of the screw, after a tool bit is aligned with the screw, the pressing block is lightly pressed by one hand to align the screw with the screw, the sleeve is pushed downwards by the other hand, the sleeve moves downwards, the tool bit is driven by the screw to rotate, meanwhile, the rotating assembly and the screw rotate integrally, the pressing block does not rotate, the position correction is assisted, and the pressing function is accompanied with the downward movement of the whole screwdriver, so that the screw is screwed up; when a screwed screw needs to be loosened and removed, two modes are available, the first mode is that a tool bit is continuously aligned with the screw by utilizing the shape of a mounted screwdriver (the state that a sleeve is close to the bottom end of the screw), the pressing block is lightly pressed by a hand in an aligned position, then the sleeve is pushed upwards, the screw drives the tool bit to reversely rotate, and the screw is removed at the moment; the second way is to remove the pressing device on the top of the screw and the tool bit on the bottom, exchange positions, then the original top of the screw becomes the bottom, and take the tool bit, align the tool bit with the screw, and the sleeve is close to the top at the moment, push the sleeve downwards like the appearance when installing the screw, the direction of the screw rotation is opposite to the direction when installing at the moment, and then the screw is removed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. A screwdriver which is characterized in that: including the screw rod, overlap the sleeve on the screw rod, the screw rod surface is equipped with thread groove I, and the sleeve internal surface is equipped with I assorted thread groove II of thread groove, the bottom of screw rod be equipped with can with the integrative tool bit that is used for cooperating the screw of rotating of screw rod, the screw rod top is provided with press device, press device including locating the screw rod top can with the integrative pivoted runner assembly of screw rod, still including the movable suit in the pressing block at runner assembly top.

2. A screwdriver as defined in claim 1, wherein: the pole portion of tool bit is triangular prism shape, the bottom of screw rod is equipped with the recess one with tool bit pole portion matched with, the tool bit is inserted in recess one.

3. A screwdriver according to claim 1 or 2, wherein: the rotating assembly comprises a T-shaped block which is movably sleeved in the pressing block and can rotate in the pressing block, a second groove is formed in the bottom of the T-shaped block, a triangular prism-shaped connecting rod matched with the second groove is sleeved in the second groove, a third groove matched with the connecting rod is formed in the top of the screw, and the bottom of the connecting rod is sleeved in the third groove.

4. A screwdriver as defined in claim 3, wherein: the connecting rod is triangular prism shape with the same size of tool bit pole portion, and recess one, recess two, three internal diameters of recess are the same.

5. A screwdriver as defined in claim 3, wherein: the outer edge of the top end of the T-shaped block is provided with a rotating bead.

6. The screwdriver as defined in claim 4, wherein: the top of the pressing block is bonded with arc pressing rubber.

7. A screwdriver as defined in claim 1, wherein: the sleeve is bonded with a rubber strip, and the surface of the rubber strip is concave.

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