CN209999068U

CN209999068U - Labor-saving screwdriver

Info

Publication number: CN209999068U
Application number: CN201920687751.3U
Authority: CN
Inventors: 周程琪; 叶靖; 谢吉涛; 官成; 陆勇星
Original assignee: Jinhua Polytechnic
Current assignee: Jinhua Polytechnic
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-01-31
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses an laborsaving screwdriver, including handle and cutter arbor, its characteristic has still included rand, tail cap, end cover, screw nut, spring, the handle is hollow cylinder, the handle embeds there are two rands, the tail end of handle is connected with the tail cap, the head end of handle links to each other with the end cover, be equipped with the recess in the end cover, screw nut locates in the recess, the cutter arbor is reciprocal lead screw structure and divide into two parts, the first half is clockwise reciprocal lead screw, the latter half is anticlockwise reciprocal lead screw, end of cutter arbor is the cross tool bit, another end of cutter arbor is the cutter arbor tail end, the cutter arbor tail end is the cross frame shape, the cutter arbor tail end passes the center and the screw nut of end cover in proper order, insert the hollow cylinder of handle at last, and place between two rands, the spring is located the hollow cylinder of handle, end and the cutter arbor tail end of spring are connected, another end and the tail cap of spring are connected, only need hold the handle during the use and push down, the cutter arbor just can.

Description

Labor-saving screwdriver

Technical Field

The utility model relates to an laborsaving screwdrivers.

Background

In daily maintenance, a screwdriver is which is a necessary tool for every family, the screwdriver is afraid of a long screw and a small screw pitch in the using process, a common screwdriver needs turns of turns to screw, time and labor are wasted, and of course, an electric screwdriver is also available in the market, but needs a power supply, even if a storage battery is provided, the storage battery is large in size, is not suitable for being carried about, and has dangers.

Disclosure of Invention

The utility model provides an above-mentioned problem, provide kinds and need not the laborsaving screwdriver that power, simple structure, security performance are high.

The invention provides a labor-saving screwdriver which comprises a handle and a screwdriver rod, and is characterized by further comprising a tail cap, a clamping ring, an end cover, a screw nut and a spring, wherein the handle is a hollow cylinder, the two clamping rings are arranged in the handle, the tail end of the handle is connected with the tail cap, the head end of the handle is connected with the end cover, a groove is formed in the end cover, the screw nut is arranged in the groove, the screwdriver rod is of a reciprocating screw rod structure and is divided into two parts, the upper half part is a clockwise reciprocating screw rod, the lower half part is an anticlockwise reciprocating screw rod, the end of the screwdriver rod is a cross screwdriver head, the other end of the screwdriver rod is a screwdriver rod tail end, the tail end of the screwdriver rod is in a cross shape, the screwdriver rod tail end sequentially penetrates through the center of the end cover and the screw nut, and is finally inserted into the hollow cylinder of the handle and is.

As the utility model discloses a go into step optimization, its characterized in that, the lead screw structure of cutter arbor is reciprocal lead screw structure, and it is the same that it has two pitches, revolves to opposite thread groove, and both ends are connected with excessive curve, and lead screw nut can be rather than the cooperation and control the rotation of revolving, lead screw nut's inside primary structure is the crescent moon, crescent moon and thread groove mesh mutually.

The -step optimization of the utility model also comprises a clamping ring which is mainly divided into two parts, wherein the part is a cross groove, the part is a locking part, the groove can be matched with the cross at the tail end of the cutter bar, the locking part is positioned outside the handle, the side wall of the handle is provided with a clamping groove and a slot seam, and the clamping ring can slide up and down in the slot seam arranged on the handle.

The utility model discloses a go into optimization, its characterized in that, the locking part is two parts, part is the cylinder that is connected with the groove part of rand, and part is little hollow cylinder in addition, the cylinder wall outside is equipped with the seam mouth, and little hollow cylinder can slide around in the seam mouth that the cylinder was established, little hollow cylinder can cooperate with the draw-in groove of handle outer wall, lets the rand lock to die to make its unable vertical slip.

As the utility model discloses a go into step optimization, meet through connecting portion between the little hollow cylinder of locking portion and the little hollow cylinder, connecting portion can freely stretch out and draw back to this adjusts the distance between rand and the rand.

As the utility model discloses a go into step optimization, the tail end of tail cap and handle is threaded connection, and the connection terminal surface of tail cap still is equipped with the tail cap recess.

The utility model has the advantages that:

the utility model discloses a laborsaving screwdriver, need during the use to arrange two rands in draw-in groove and draw-in groove respectively and lock extremely, the meshing part of screw nut and cutter arbor is the clockwise reciprocating lead screw of first half this moment, then hold the handle and push down, under screw nut's effect, reciprocating lead screw structure's cutter arbor just can autogiration, tighten the screw fast, when the handle pushes down extreme position, the crescent of screw nut inside just can excessively to the opposite screw thread inslot of turning to through the transition curve of clockwise reciprocating lead screw tail end, then only need loosen the handle, under the effect of built-in spring, can make the cutter arbor continue to tighten the screw, can make the handle automatic re-setting, prepare for rotations down, it is fairly convenient to use, if need loosen the screw, only place two rands respectively in draw-in groove three and draw-in groove six and lock extremely, the meshing part of screw nut and cutter arbor is the anticlockwise reciprocating lead screw of latter half this moment, then hold the handle and push down the draw-in groove, under screw nut's effect, the cutter arbor of reciprocating lead screw structure just can autogirdling, realize the function of loosening, when not needing to use quick screw, when need to arrange two rands the quick screw in draw-in the draw-in groove and the screwdriver, when the ordinary screwdriver and the operation, the convenient screwdriver, when the utility model is used, it is simple and when the utility model is used.

Drawings

FIG. 1 is a sectional view of the power saving screwdriver of the present invention;

FIG. 2 is a diagrammatic view of the screwdriver of FIG. 1;

FIG. 3 is a diagram of the collar of FIG. 1;

FIG. 4 is a structural view of the reciprocating screw rod of the power saving screwdriver rod of the present invention;

FIG. 5 is a view of the structure of the lead screw nut of the present invention;

the novel screwdriver comprises a tail cap 1, a spring 2, a handle 3, a lead screw nut 4, a crescent 41, an end cover 5, a cutter bar 6, a clockwise reciprocating lead screw 61, an anticlockwise reciprocating lead screw 62, a cutter head 63, a clamping ring 7, a connecting part 71, a small hollow cylinder 72, a cross-shaped groove 73, a clamping groove 8, a clamping groove 8-1, a clamping groove two 8-2, a clamping groove three 8-3, a clamping groove four 8-4, a clamping groove five 8-5, a clamping groove six 8-6 and a slot opening 9.

Detailed Description

The present invention will be described in detail with reference to the following specific examples.

When the screw driver is used, two clamping rings 7 are required to be placed in the clamping grooves 8-1 and the clamping grooves IV 8-4 respectively and locked by the small hollow cylinder 72, at the moment, the meshing part of the screw nut 4 and the cutter bar 6 is the clockwise reciprocating screw 61 of the upper half part, then the handle 3 is held to press down, under the action of the screw nut 4, the cutter bar 6 of the reciprocating screw structure can automatically rotate and quickly screw up the screw, when the handle 3 is pressed down to the limit position, the crescent 41 in the screw nut 4 can transition to the thread groove in the opposite rotation direction through the transition curve of the tail end of the clockwise reciprocating screw 61, then the handle 3 is only required to be loosened, under the action of the built-in spring 2, the screw can be continuously screwed up by the cutter bar 6, the handle 3 can automatically reset, and preparation is made for the next times of rotation.

If the screw needs to be unscrewed, only two clamping rings 7 are respectively arranged in the three clamping grooves 8-3 and the six clamping grooves 8-6 and are locked by the small hollow cylinder 72, at the moment, the meshing part of the screw nut 4 and the cutter bar 6 is the anticlockwise reciprocating screw rod 62 of the lower half part, then the handle 3 is held to press down, under the action of the screw nut 4, the cutter bar 6 of the reciprocating screw rod structure can automatically rotate to realize the function of unscrewing the screw, when the handle 3 is pressed down to the limit position, the crescent 41 in the screw nut 4 can transition to the thread groove in the opposite rotation direction through the transition curve at the tail end of the anticlockwise reciprocating screw rod 62, then only the handle 3 needs to be loosened, under the action of the built-in spring 2, the cutter bar 6 can continuously unscrew the screw, the handle 3 can automatically reset, and preparation is made for times of downward rotation.

When the quick rotation function is not needed, the screwdriver can be used as a common screwdriver only by placing the two clamping rings 7 in the clamping groove 8-1 and the clamping groove II 8-2, the clamping groove III 8-3 and the clamping groove IV 8-4, or the clamping groove V8-5 and the clamping groove VI 8-6 respectively and locking the clamping rings by the small hollow cylinder 72.

Preferably, the tail end of tail cap 1 and handle is threaded connection, and the connection terminal surface of tail cap 1 still is equipped with the tail cap recess, and the link of spring 2 can be fixed in the recess the inside, when dismantling the installation, can avoid carelessness to cause the spring to lose, also makes things convenient for spring location installation.A tail cap 1 and handle tail end in this embodiment are for threaded connection is for simplifying the structure, and the processing of being convenient for, of course, if the processing condition allows, can make whole with tail cap 1 and handle tail end, spring 1 only need follow the head end of handle pack into can.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

The labor-saving screwdriver comprises a handle and a screwdriver rod, and is characterized by further comprising a tail cap, an end cover, a screw nut and a spring, wherein the handle is a hollow cylinder, two clamping rings are arranged in the handle, the tail end of the handle is connected with the tail cap, the head end of the handle is connected with the end cover, a groove is formed in the end cover, the screw nut is arranged in the groove, the screwdriver rod is of a reciprocating screw rod structure and is divided into two parts, the upper half part is a clockwise reciprocating screw rod, the lower half part is an anticlockwise reciprocating screw rod, a end of the screwdriver rod is a cross screwdriver head, the other end of the screwdriver rod is a screwdriver rod tail end, the tail end of the screwdriver rod is in a cross shape, the tail end of the screwdriver rod sequentially penetrates through the center of the end cover and the screw nut, and is finally inserted into the hollow cylinder of the handle and placed between the two clamping.
2. The labor-saving screwdriver as recited in claim 1, wherein the screw structure of the screwdriver rod is a reciprocating screw structure, which has two thread grooves with the same pitch and opposite rotation directions, and two ends are connected by a transition curve, and the screw nut can rotate left and right in cooperation with the screw nut; the internal main structure of the screw nut is a crescent moon, and the crescent moon is meshed with the thread groove.
3. The labor-saving screwdriver as claimed in claim 1, further comprising a collar, wherein the collar is mainly divided into two parts, parts are cross grooves, parts are locking parts, the grooves can be matched with the cross at the tail end of the screwdriver rod, the locking parts are located outside the handle, the side wall of the handle is provided with clamping grooves and slots, and the collar can slide up and down in the slots formed in the handle.
4. The labor-saving screwdriver as recited in claim 3, wherein the locking portion is formed in two parts, is a cylinder connected with the groove portion of the collar, is a small hollow cylinder, the outer side of the wall of the cylinder is provided with a slot, the small hollow cylinder can slide back and forth in the slot of the cylinder, and the small hollow cylinder can be matched with the slot of the outer wall of the handle, so that the collar is locked and cannot slide up and down.
5. The labor-saving screwdriver as recited in claim 4, wherein the small hollow cylinder of the locking part is connected with the small hollow cylinder through a connecting part, and the connecting part can freely extend and contract to adjust the distance between the clamping ring and the clamping ring.
6. The labor-saving screwdriver as recited in claim 5, wherein the tail cap is in threaded connection with the tail end of the handle, and the connecting end surface of the tail cap is further provided with a tail cap groove.