CN216883688U - Convenient screwdriver - Google Patents

Abstract

The utility model discloses a convenient screwdriver. It includes the turning handle, utensil head and cutter arbor sleeve pipe soon, utensil head and turning handle swing joint soon, it is overhead to be equipped with the rotation adjustment tank soon, it is fixed with the lug to rotate the adjustment tank bottom, the last rotation regulating block that clamps of turning handle, the lug, it all rotates with the cutter arbor sleeve pipe to rotate regulating block and turning handle and is connected, be fixed with two limit stop on the lug, be equipped with the regulating block recess on the rotation regulating block, be equipped with two limit stop active area in the regulating block recess, be equipped with annular tooth region on the cutter arbor sleeve pipe, be equipped with locking piece active area in the regulating block recess, locking piece active area is linked together with limit stop active area, the equal swing joint in both sides inside the locking piece active area has the rotation locking piece, be equipped with latch and oblique straight face on the rotation locking piece, be connected through the locking piece spring between two rotation locking pieces. The beneficial effects of the utility model are: the operation is simple and convenient, and the working efficiency is high; is convenient to carry and replace the screwdriver bit.

Description

Convenient screwdriver

Technical Field

The utility model relates to the technical field of manual tools, in particular to a convenient screwdriver.

Background

Screwdrivers, also commonly referred to as screwdrivers, or screwdrivers, are tools used to tighten or loosen screws. Mainly comprises a straight line (negative sign) and a cross (positive sign).

Chinese patent grant publication no: CN207548677U, entitled bulletin date 2018, 06, 29, discloses a multifunctional screwdriver, which comprises a holding handle, a screwdriver rod and a screwdriver head, wherein the screwdriver head is provided with a working edge for rotating a slotted screw, and is characterized in that: one end of the working edge is provided with a cutting edge, the cutting edge is composed of a first inclined plane, the cutter head is further provided with a V-shaped inclined notch, and the inclined notch is composed of a second inclined plane and a third inclined plane. The disadvantage of this patent is that when the worker uses the screwdriver to turn the screw, after turning once, the worker needs to hold the screwdriver with one hand, then loosen the screwdriver with the other hand to readjust the position, and then turn the screw a second time, or needs to pull out the screwdriver from the screw groove of the screw, readjust the position of the screwdriver and then clamp into the screw groove, and then turn the screw a second time. The operation is complicated and difficult, the time and the labor are wasted, and the working efficiency is low.

To sum up, a convenient screwdriver capable of improving the working efficiency is needed at present.

Disclosure of Invention

The utility model provides a convenient screwdriver capable of improving the working efficiency, aiming at overcoming the defects of complex operation, time and labor waste and low working efficiency of the screwdriver in the prior art when the screwdriver is used for screwing screws.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a convenient screwdriver comprises a rotating handle, a screwdriver head and a screwdriver rod sleeve, wherein a screwdriver rod is installed in the screwdriver rod sleeve, the screwdriver head is installed at one end of the rotating handle and movably connected with the rotating handle, a rotating adjusting groove is formed in the face, opposite to the rotating handle, of the screwdriver head, a protruding block is fixed on the bottom surface of the rotating adjusting groove, a rotating adjusting block matched with the rotating adjusting groove is clamped on the rotating handle, the rotating adjusting block is arranged in the rotating adjusting groove and movably connected with the rotating adjusting groove, a screwdriver rod sleeve through hole I matched with the screwdriver rod sleeve is formed in the protruding block, a screwdriver rod sleeve through hole II matched with the screwdriver rod sleeve is formed in the rotating adjusting block, a screwdriver rod sleeve installation hole matched with the screwdriver rod sleeve is formed in the rotating handle, the screwdriver rod sleeve sequentially penetrates through hole I and the screwdriver rod sleeve through hole II to be installed in the screwdriver rod sleeve installation hole, the lug, the rotary adjusting block and the rotary handle are all rotationally connected with the cutter bar sleeve, two limit stops are fixed on the lug and are respectively and symmetrically arranged at two sides of the cutter bar sleeve through hole I, an adjusting block groove is arranged on the rotary adjusting block, the cutter bar sleeve through hole II is arranged at the center position of the bottom surface of the adjusting block groove, two limit stop moving areas matched with the two limit stops are arranged in the adjusting block groove and positioned at two sides of the cutter bar sleeve through hole II, the limit stops are arranged in the limit stop moving areas and movably connected with the limit stops, an annular tooth area is arranged on the cutter bar sleeve and positioned at the inner side of the adjusting block groove, a locking block moving area is also arranged in the adjusting block groove and positioned at the side surface of the cutter bar sleeve through hole II, and the locking block moving area is composed of an arc wall section and two oblique straight wall sections, the arc wall section is arranged in between two oblique straight wall sections and the both ends of arc wall section are linked together with the one end of two oblique straight wall sections respectively, and the other end of two oblique straight wall sections is linked together with limit stop activity area respectively, the equal swing joint in both sides of the inside of lock piece activity area has the rotation locking piece, the rotation locking piece just is equipped with the lock tooth that with annular teeth zone phase-match in the one side in annular teeth area, the rotation locking piece is equipped with the oblique straight face with oblique straight wall section assorted back to the one side in annular teeth area, oblique straight wall section increases gradually from the one end of lock piece activity area to the one end width of arc wall section, the length of oblique straight wall section is greater than the length of rotation locking piece oblique straight face, the inside lock piece spring that still is equipped with of lock piece activity area, is connected through the lock piece spring between two rotation locking pieces.

Under the natural state, two are rotated the locking piece and all are located oblique straight wall section one end that is close to the positive stop active area, and two positive stop all are located positive stop active area one end that is close to oblique straight wall section, and rotate the locking piece and contact with positive stop. When screwing the screw, after the cutter bar is clamped into the screw groove at the top of the screw, a worker holds the screwdriver head by one hand to fix, namely, the limit stop is in a fixed state, holds the rotating handle by the other hand to rotate towards one direction (forward rotation screwing or reverse rotation unscrewing), namely, the whole rotating adjusting groove rotates, at the moment, one rotating locking block is blocked by the limit stop corresponding to the rotating locking block and is in an immobile state, the inclined straight wall section is changed from one end close to the movable area of the limit stop to one end close to the arc wall section (because the width of the inclined straight wall section is gradually increased from one end of the movable area of the locking block to one end of the arc wall section, the inclined straight wall section cannot be clamped with the annular tooth area on the sleeve of the cutter bar), and the other rotating locking block rotates under the pressure of the inclined straight wall section corresponding to the inclined straight wall section (namely, the inclined straight wall section rotates towards one rotating locking block, at the moment, the locking block spring is compressed), and then the cutter bar sleeve (cutter bar) is driven to rotate (because the other rotating locking block is meshed with the annular tooth area), so that the action of rotating once is completed; when the staff holds the hand of turning handle and carries out the return, whole rotation adjustment tank takes place the return promptly, and one of them rotation locking piece gets back to the one end that oblique straight wall section is close to the limit stop activity region again this moment, and another rotation locking piece then can take place to separate with the annular tooth region on the cutter arbor sleeve pipe under the reset force effect of locking piece spring, presses on the lateral wall of oblique straight wall section and along this lateral wall get back to the natural state when initiating to the effect that the turning handle return and cutter arbor sleeve pipe (cutter arbor) are motionless has been realized. Then, the worker only needs to repeat the actions, namely one hand holds the screwdriver head to fix, the other hand holds the rotating handle to continuously rotate, return, rotate and return towards one direction, the operation of screwing the screw can be completed, the operation is simple and convenient, time and labor are saved, and the working efficiency is high.

Preferably, the outer side wall of the rotating adjusting block is provided with a first blind hole, a first limiting clamping bead and a first supporting spring are arranged inside the first blind hole, the first limiting clamping bead is arranged at an opening of the first blind hole, one end of the first supporting spring is connected with the bottom surface of the first blind hole, the other end of the first supporting spring is connected with the first limiting clamping bead, the inner side wall of the rotating adjusting groove is provided with a plurality of limiting clamping grooves matched with the first limiting clamping bead, and the plurality of limiting clamping grooves are located in the same horizontal plane and are distributed annularly about the central line of the rotating adjusting groove. The number of the limiting clamping grooves is three, in a natural state, the limiting clamping balls are clamped in the limiting clamping grooves in the middle position under the elastic action of the first supporting spring, and the limiting clamping grooves on the two sides respectively represent the farthest stroke positions of one forward rotation or one reverse rotation of a worker.

Preferably, one surface of the screwdriver head, which is back to the rotating handle, is provided with a rotating limiting groove, the through hole of the cutter bar sleeve is positioned on the bottom surface of the rotating limiting groove, a limiting clamping sleeve and a compression spring are arranged in the rotating limiting groove, the limiting clamping sleeve is arranged at the opening of the rotating limiting groove, one end of the compression spring is connected with one side of the limiting clamp sleeve, the other end of the compression spring is connected with the bottom of the rotary limiting groove, the other side of the limiting clamping sleeve is positioned outside the rotating limiting groove, the outer side wall of the limiting clamping sleeve is provided with a flanging, the side wall of the cutter bar sleeve is provided with a locking bead mounting groove and a baffle ring groove, a baffle ring is arranged in the baffle ring groove, the limiting clamping sleeve is arranged between the baffle ring and the compression spring, a rotary lock bead is arranged in the lock bead mounting groove, the inner side wall of the limiting clamping sleeve is provided with a lock bead movable annular groove matched with the rotary lock bead. The baffle ring plays a role in installing and limiting the limiting clamping sleeve and blocks the limiting clamping sleeve to prevent the limiting clamping sleeve from being separated from the rotating limiting groove. In a natural state, the rotating lock bead is pressed on the inner side wall of the limiting clamping sleeve and is staggered with the movable annular groove of the lock bead, the specific position of the rotating lock bead is positioned between the compression spring and the locking movable annular groove, and the cutter bar sleeve is in a locked and fixed state and cannot rotate relative to the screwdriver head; when needing to revolve the screw operation, behind the screw groove at screw top was gone into to the cutter arbor card, the staff will be whole screw revolves the utensil earlier and down presses, impresses spacing cutting ferrule and rotates the spacing groove in, makes the rotation lock pearl on the cutter arbor sleeve pipe enter into the lock pearl activity ring channel of spacing cutting ferrule simultaneously, just can make cutter arbor sleeve pipe and revolve the utensil hair and take place relative rotation. Wherein the compression spring plays the reset role of the limiting clamping sleeve.

Preferably, a round corner is arranged at the opening of the movable annular groove of the lock bead. Through the design of fillet, improved the smooth nature of rotating the lock pearl when getting into or leaving lock pearl activity annular groove, the operation is got up convenient and smoothly, labour saving and time saving.

Preferably, a tool shank groove is formed in the end face of the other end of the rotating handle, a screwdriver base is arranged in the tool shank groove, the screwdriver base and the tool shank groove can be detachably connected, a screwdriver head is installed on the screwdriver base, the screwdriver head and the screwdriver head base can be detachably connected, and a screwdriver head installation groove matched with the screwdriver head is formed in the end portion of the tool bar. The screwdriver head seat can be used for installing a plurality of screwdriver heads, and the screwdriver head seat with the screwdriver heads installed can be installed in the cutter handle groove on the rotating handle, so that the defect that the cutter body and the screwdriver heads of the traditional screwdriver need to be stored respectively is overcome, the screwdriver is convenient to carry, and the screwdriver heads are convenient to replace. Through the design of the built-in handle groove, the whole volume of the screwdriver is effectively reduced, the structure is compact, and the production cost is reduced.

Preferably, the one end of the rotation regulating block is arranged in the rotation regulating groove, the rotating handle is provided with a regulating block mounting clamping groove matched with the other end of the rotation regulating block, the other end of the rotation regulating block is mounted in the regulating block mounting clamping groove and is clamped with the regulating block, a cutter bar sleeve through hole III matched with a cutter bar sleeve is arranged between the bottom surface of the regulating block mounting clamping groove and the bottom surface of the cutter handle groove, the cutter bar sleeve mounting hole is arranged on the screwdriver head seat, the cutter bar sleeve sequentially penetrates through the cutter bar sleeve through hole I, the cutter bar sleeve through hole II and the cutter bar sleeve through hole III to be mounted in the cutter bar sleeve mounting hole, and the screwdriver head seat and the cutter bar sleeve are detachably connected. The screwdriver head seat can be detached from the cutter bar sleeve and taken out from the cutter handle groove, so that the screwdriver head is convenient for workers to take.

Preferably, a first batch head seat positioning groove matched with the batch head seat is formed in the bottom surface of the cutter handle groove, an end cover is clamped at an opening of the cutter handle groove, and a second batch head seat positioning groove matched with the batch head seat is formed in the end cover. The screwdriver head seat positioning groove I is matched with the screwdriver head seat positioning groove II, so that the screwdriver head seat is positioned in the cutter handle groove, and the structure stability is good.

Preferably, the outer side wall of the screwdriver head seat is provided with a screwdriver head clamping groove matched with the screwdriver head, the screwdriver head clamping groove is composed of two limiting clamping plates, the two limiting clamping plates are arranged oppositely, one side of each limiting clamping plate is fixed on the outer side wall of the screwdriver head seat, a clamping edge is fixed on the other side of each limiting clamping plate, the clamping edge inclines towards the inner side of the screwdriver head clamping groove, and the side wall of the screwdriver head is provided with a clamping surface matched with the screwdriver head clamping groove. The screwdriver head is clamped between the two limiting clamping plates through the clamping surface, the structure is simple, the screwdriver head is very convenient to mount and dismount, and time and labor are saved.

Preferably, the side wall of the screwdriver head is provided with a second blind hole, the second blind hole is located on one surface of the inner wall of the tool setting handle groove, a second ejecting ball and a second supporting spring are installed in the second blind hole, the second ejecting ball is arranged at an opening of the second blind hole, one end of the second supporting spring is connected with the bottom surface of the second blind hole, and the other end of the second supporting spring is connected with the second ejecting ball. The top ball on the batch head is pressed on the inner wall of the cutter handle groove under the action of the second supporting spring, so that the further fastening effect of the batch head in the batch head clamping groove is achieved, and the stability of batch head installation is improved.

Preferably, the outer sleeve of the rotating handle is provided with a hand grip sleeve, the hand grip sleeve is connected with the rotating handle in a clamping mode, and the outer side wall of the hand grip sleeve is provided with anti-skidding lines. Through the design of anti-skidding line, can increase the friction between staff's hand and the twist grip, play the anti-skidding effect when the staff rotates twist grip.

The utility model has the beneficial effects that: the screw can be screwed by holding the screwdriver head by one hand for fixing and holding the rotating handle by the other hand for continuously rotating, returning, rotating and returning in one direction, so that the operation is simple and convenient, time and labor are saved, and the working efficiency is high; the operation is convenient and smooth, and time and labor are saved; the defect that the cutter body and the screwdriver bit of the traditional screwdriver need to be stored respectively is overcome, the screwdriver bit is convenient to carry, and the screwdriver bit is convenient to replace; the overall volume of the screwdriver is effectively reduced, the structure is compact, and the production cost is reduced; the worker can conveniently take the batch head; the structural stability is good; has the function of skid resistance.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an assembly view of the present invention;

FIG. 3 is a first front view of FIG. 2;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 3;

FIG. 6 is a second front view of FIG. 2;

fig. 7 is a cross-sectional view at C-C in fig. 3.

In the figure: 1. the rotary handle, 2, the screwdriver head, 3, the cutter bar sleeve, 4, the rotary adjusting groove, 5, the bump, 6, the rotary adjusting block, 7, the cutter bar sleeve through hole I, 8, the cutter bar sleeve through hole II, 9, the cutter bar sleeve mounting hole, 10, the limit stop, 11, the adjusting block groove, 12, the limit stop moving area, 13, the annular tooth area, 14, the locking block moving area, 15, the arc wall area, 16, the inclined straight wall area, 17, the rotary locking block, 18, the locking tooth, 19, the inclined straight surface, 20, the locking block spring, 21, the blind hole I, 22, the limit clamping ball, 23, the support spring I, 24, the limit clamping groove, 25, the rotary limiting groove, 26, the limit clamping sleeve, 27, the compression spring, 28, the flanging, 29, the locking ball mounting groove, 30, the retaining ring groove, 31, the retaining ring, 32. the screwdriver comprises a rotary lock ball, 33 parts of a lock ball movable annular groove, 34 parts of a round angle, 35 parts of a tool shank groove, 36 parts of a screwdriver head seat, 37 parts of a screwdriver head, 38 parts of a screwdriver head installation groove, 39 parts of an adjusting block installation clamping groove, 40 parts of a screwdriver rod sleeve through hole III, 41 parts of a screwdriver head seat positioning groove I, 42 parts of an end cover, 43 parts of a screwdriver head seat positioning groove II, 44 parts of a limiting clamping plate, 45 parts of a clamping edge, 46 parts of a clamping surface, 47 parts of a blind hole II, 48 parts of a top ball, 49 parts of a supporting spring II, 50 parts of a hand-held sleeve, 51 parts of anti-skidding grains, 52 parts of a screwdriver head clamping groove and 53 parts of a screwdriver rod.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1 and 2, a convenient screwdriver comprises a rotating handle 1, a screwdriver head 2 and a screwdriver rod sleeve 3, wherein a screwdriver rod 53 is installed in the screwdriver rod sleeve 3, the screwdriver head 2 is installed at one end of the rotating handle 1 and movably connected with the rotating handle 1, as shown in fig. 3, 4 and 5, a rotating adjusting groove 4 is arranged on one surface of the screwdriver head 2, which is opposite to the rotating handle 1, a convex block 5 is fixed on the bottom surface of the rotating adjusting groove 4, a rotating adjusting block 6 matched with the rotating adjusting groove 4 is clamped on the rotating handle 1, the rotating adjusting block 6 is arranged in the rotating adjusting groove 4 and movably connected with the rotating adjusting groove 4, a sleeve through hole I7 matched with the screwdriver rod sleeve 3 is arranged on the convex block 5, a screwdriver rod sleeve through hole II 8 matched with the screwdriver rod sleeve 3 is arranged on the rotating adjusting block 6, a screwdriver rod sleeve installing hole 9 matched with the screwdriver rod sleeve 3 is arranged on the rotating handle 1, the cutter bar sleeve 3 sequentially passes through a cutter bar sleeve through hole I7 and a cutter bar sleeve through hole II 8 and is arranged in a cutter bar sleeve mounting hole 9, a convex block 5, a rotary regulating block 6 and a rotary handle 1 are rotatably connected with the cutter bar sleeve 3, two limit stops 10 are fixed on the convex block 5, the two limit stops 10 are respectively and symmetrically arranged at two sides of the cutter bar sleeve through hole I7, a regulating block groove 11 is arranged on the rotary regulating block 6, the cutter bar sleeve through hole II 8 is arranged at the center position of the bottom surface of the regulating block groove 11, two limit stop moving areas 12 matched with the two limit stops 10 are arranged in the regulating block groove 11 and positioned at two sides of the cutter bar sleeve through hole II 8, the limit stops 10 are arranged in the limit stop moving areas 12 and movably connected with the two limit stops, an annular tooth area 13 is arranged on the cutter bar sleeve 3, the annular tooth area 13 is positioned at the inner side of the regulating block groove 11, a locking block moving area 14 is also arranged in the regulating block groove 11 and positioned at the side surface of the cutter bar sleeve through hole II 8, the locking block moving region 14 is composed of an arc wall section 15 and two inclined straight wall sections 16, the arc wall section 15 is arranged between the two inclined straight wall sections 16, two ends of the arc wall section 15 are respectively communicated with one ends of the two inclined straight wall sections 16, the other ends of the two inclined straight wall sections 16 are respectively communicated with the limit stop moving region 12, two sides inside the locking block moving region 14 are movably connected with rotary locking blocks 17, one face, facing the annular tooth region 13, of each rotary locking block 17 is provided with a locking tooth 18 matched with the annular tooth region 13, one face, facing away from the annular tooth region 13, of each rotary locking block 17 is provided with an inclined straight face 19 matched with the inclined straight wall sections 16, the widths of the inclined straight wall sections 16 from one end of the locking block moving region 14 to one end of the arc wall section 15 are gradually increased, the lengths of the inclined straight wall sections 16 are larger than the lengths of the inclined straight faces 19 of the rotary locking blocks 17, a locking block spring 20 is further arranged inside the locking block moving region 14, and the two rotary locking blocks 17 are connected through the locking block spring 20.

As shown in fig. 6 and 7, a first blind hole 21 is formed in the outer side wall of the rotation adjusting block 6, a first limiting clamping bead 22 and a first supporting spring 23 are arranged inside the first blind hole 21, the first limiting clamping bead 22 is arranged at the opening of the first blind hole 21, one end of the first supporting spring 23 is connected with the bottom surface of the first blind hole 21, the other end of the first supporting spring 23 is connected with the first limiting clamping bead 22, as shown in fig. 5, a plurality of limiting clamping grooves 24 matched with the first limiting clamping bead 22 are formed in the inner side wall of the rotation adjusting groove 4, and the plurality of limiting clamping grooves 24 are located in the same horizontal plane and are distributed annularly about the central line of the rotation adjusting groove 4.

As shown in fig. 4 and 7, a rotation limiting groove 25 is provided on one side of the screwdriver head 2 facing away from the rotating handle 1, the first through hole 7 of the screwdriver rod sleeve is located on the bottom surface of the rotation limiting groove 25, a limiting clamping sleeve 26 and a compression spring 27 are provided in the rotation limiting groove 25, the limiting clamping sleeve 26 is disposed at the opening of the rotation limiting groove 25, one end of the compression spring 27 is connected with one side of the limiting clamping sleeve 26, the other end of the compression spring 27 is connected with the bottom of the rotation limiting groove 25, the other side of the limiting clamping sleeve 26 is located outside the rotation limiting groove 25, a flange 28 is provided on the outer side wall of the limiting clamping sleeve 26, a locking ball mounting groove 29 and a retaining ring groove 30 are provided on the side wall of the screwdriver rod sleeve 3, a retaining ring 31 is installed in the retaining ring groove 30, the limiting clamping sleeve 26 is disposed between the retaining ring 31 and the compression spring 27, a rotating locking ball 32 is provided in the locking ball mounting groove 29, and a locking ball movable ring groove 33 matched with the rotating locking ball 32 is provided on the inner side wall of the limiting clamping sleeve 26.

As shown in fig. 7, a round corner 34 is provided at the opening of the locking ball movable annular groove 33.

As shown in fig. 4, a tool shank slot 35 is formed in the end face of the other end of the rotating handle 1, a screwdriver seat 36 is arranged in the tool shank slot 35, the screwdriver seat 36 is detachably connected with the tool shank slot 35, a screwdriver head 37 is mounted on the screwdriver seat 36, the screwdriver head 37 is detachably connected with the screwdriver seat 36, and a screwdriver head mounting slot 38 matched with the screwdriver head 37 is formed in the end portion of the tool bar 53.

As shown in fig. 4, one end of the rotation adjusting block 6 is arranged in the rotation adjusting groove 4, the rotating handle 1 is provided with an adjusting block installation clamping groove 39 matched with the other end of the rotation adjusting block 6, the other end of the rotation adjusting block 6 is installed in the adjusting block installation clamping groove 39 and is clamped with the same, a third cutter bar sleeve through hole 40 matched with the cutter bar sleeve 3 is arranged between the bottom surface of the adjusting block installation clamping groove 39 and the bottom surface of the cutter handle groove 35, the cutter bar sleeve installation hole 9 is located on the screwdriver seat 36, the cutter bar sleeve 3 sequentially penetrates through the first cutter bar sleeve through hole 7, the second cutter bar sleeve through hole 8 and the third cutter bar sleeve through hole 40 to be installed in the cutter bar sleeve installation hole 9, and the screwdriver seat 36 is detachably connected with the cutter bar sleeve 3.

As shown in fig. 4, a first bit holder positioning groove 41 matched with the bit holder 36 is arranged on the bottom surface of the knife handle groove 35, an end cover 42 is clamped at an opening of the knife handle groove 35, and a second bit holder positioning groove 43 matched with the bit holder 36 is arranged on the end cover 42.

As shown in fig. 1, a batch head clamping groove 52 matched with the batch head 37 is formed in the outer side wall of the batch head seat 36, the batch head clamping groove 52 is composed of two limiting clamping plates 44, the two limiting clamping plates 44 are oppositely arranged, one side of the limiting clamping plate 44 is fixed on the outer side wall of the batch head seat 36, a clamping edge 45 is fixed on the other side of the limiting clamping plate 44, the clamping edge 45 inclines towards the inner side of the batch head clamping groove 52, and a clamping surface 46 matched with the batch head clamping groove 52 is formed in the side wall of the batch head 37.

As shown in fig. 7, a second blind hole 47 is formed in the side wall of the bit 37, the second blind hole 47 is located on the side of the inner wall of the tool shank slot 35, a second supporting spring 49 and a top ball 48 are installed in the second blind hole 47, the top ball 48 is placed at the opening of the second blind hole 47, one end of the second supporting spring 49 is connected with the bottom surface of the second blind hole 47, and the other end of the second supporting spring 49 is connected with the top ball 48.

As shown in FIG. 1, a grip sleeve 50 is sleeved outside the rotating handle 1, the grip sleeve 50 is clamped with the rotating handle 1, and an anti-slip thread 51 is arranged on the outer side wall of the grip sleeve 50.

The working principle is as follows:

in a natural state, the two rotating locking blocks 17 are both positioned at one end of the inclined straight wall section 16 close to the limit stop moving area 12, the two limit stops 10 are both positioned at one end of the limit stop moving area 12 close to the inclined straight wall section 16, and the rotating locking blocks 17 are in contact with the limit stops 10; meanwhile, the rotating lock bead 32 is pressed on the inner side wall of the limiting clamp sleeve 26 and staggered with the movable annular groove 33 of the lock bead, the specific position of the rotating lock bead 32 is located between the compression spring 27 and the locking movable annular groove 33, and at the moment, the cutter bar sleeve 3 is in a locked and fixed state and cannot rotate relative to the screwdriver head 2.

When the screw operation needs to be screwed, the cutter bar 53 is clamped into the screw groove at the top of the screw, the operator firstly presses the whole screw driver, presses the limiting clamping sleeve 26 into the rotating limiting groove 25, and simultaneously enables the rotating locking bead 32 on the cutter bar sleeve 3 to enter the locking bead movable annular groove 33 of the limiting clamping sleeve 26, so that the cutter bar sleeve 3 and the driver head 2 can rotate relatively. When screwing, the worker holds the screwdriver head 2 with one hand to fix, namely the limit stop 10 is in a fixed state, holds the turning handle 1 with the other hand to rotate in one direction (screwing in forward or unscrewing in reverse), namely the whole turning adjusting groove 4 rotates, at the moment, one of the turning locking blocks 17 is blocked by the limit stop 10 corresponding to the turning locking block and is in an immobile state, the inclined straight wall section 16 is changed from one end close to the limit stop active area 12 to one end close to the arc wall section 15 (because the width of the inclined straight wall section 16 is gradually increased from one end of the locking block active area 14 to one end of the arc wall section 15, the inclined straight wall section does not clamp with the annular tooth area 13 on the toolbar sleeve 3), and the other turning locking block 17 rotates under the pressure of the inclined straight wall section 16 corresponding to the turning locking block (namely rotates towards one of the turning locking blocks 17, the locking spring 20 is compressed at this time), and further drives the cutter bar sleeve 3 (cutter bar 53) to rotate (because the other rotating locking block 17 is in a meshed state with the annular tooth area 13), so as to complete the action of rotating once; when the worker holds the rotating handle 1, the hand returns, that is, the whole rotating adjusting groove 4 returns, at this time, one of the rotating locking blocks 17 returns to the end of the inclined straight wall section 16 close to the limit stop moving region 12, and the other rotating locking block 17 separates from the annular tooth region 13 on the cutter arbor sleeve 3 under the action of the returning force of the locking block spring 20, presses on the side wall of the inclined straight wall section 16 and returns to the original natural state along the side wall, so that the effects that the rotating handle 1 returns and the cutter arbor sleeve 3 (the cutter arbor 53) does not move are achieved. Then, the worker only needs to repeat the actions, namely one hand holds the screwdriver head 2 to fix, and the other hand holds the rotating handle 1 to continuously rotate, return, rotate and return towards one direction, so that the operation of screwing can be completed.

When the batch head 37 needs to be replaced, the end cover 42 can be opened to take out the batch head seat 36 in the cutter handle groove 35, and the required batch head 37 can be selected from the batch head seat for replacement. The defect that the cutter body and the screwdriver bit of the traditional screwdriver need to be stored respectively is overcome well, the screwdriver bit is convenient to carry, and the screwdriver bit 37 is convenient to replace. Through the design of the built-in handle groove 35, the whole volume of the screwdriver is effectively reduced, the structure is compact, and the production cost is reduced.

Claims (10)

1. A convenient screwdriver is characterized by comprising a rotating handle (1), a screwdriver head (2) and a screwdriver rod sleeve (3), wherein a screwdriver rod (53) is installed in the screwdriver rod sleeve (3), the screwdriver head (2) is installed at one end of the rotating handle (1) and movably connected with the rotating handle, a rotating adjusting groove (4) is formed in one surface of the screwdriver head (2) opposite to the rotating handle (1), a convex block (5) is fixed on the bottom surface of the rotating adjusting groove (4), a rotating adjusting block (6) matched with the rotating adjusting groove (4) is clamped on the rotating handle (1), the rotating adjusting block (6) is arranged in the rotating adjusting groove (4) and movably connected with the rotating adjusting groove and the rotating adjusting groove, a screwdriver rod sleeve through hole I (7) matched with the screwdriver rod sleeve (3) is formed in the convex block (5), a screwdriver rod sleeve through hole II (8) matched with the screwdriver rod sleeve (3) is formed in the rotating adjusting block (6), the cutter bar sleeve mounting structure is characterized in that a cutter bar sleeve mounting hole (9) matched with the cutter bar sleeve (3) is formed in the rotating handle (1), the cutter bar sleeve (3) sequentially penetrates through a cutter bar sleeve through hole I (7) and a cutter bar sleeve through hole II (8) to be mounted in the cutter bar sleeve mounting hole (9), the protruding block (5), the rotating adjusting block (6) and the rotating handle (1) are rotatably connected with the cutter bar sleeve (3), two limit stops (10) are fixed on the protruding block (5), the two limit stops (10) are respectively and symmetrically arranged on two sides of the cutter bar sleeve through hole I (7), an adjusting block groove (11) is formed in the rotating adjusting block (6), the cutter bar sleeve through hole II (8) is arranged at the center of the bottom surface of the adjusting block groove (11), two limit stop moving areas (12) matched with the two limit stops (10) are arranged in the adjusting block groove (11) and on two sides of the cutter bar sleeve through hole II (8), the utility model discloses a cutter bar sleeve, including limit stop (10), cutter bar sleeve pipe (3), regulation block through-hole two (8), limit stop activity region (12) and both swing joints are arranged in to limit stop (10), be provided with annular tooth region (13) on cutter bar sleeve pipe (3), annular tooth region (13) are located the inboard of regulation block recess (11), regulation block recess (11) just are located the side of cutter bar sleeve pipe through-hole two (8) and still are equipped with locking block activity region (14), locking block activity region (14) comprises a radial wall section (15) and two oblique straight wall sections (16), and radial wall section (15) are arranged in between two oblique straight wall sections (16) and the both ends of radial wall section (15) are linked together with the one end of two oblique straight wall sections (16) respectively, and the other end of two oblique straight wall sections (16) is linked together with limit stop activity region (12) respectively, the equal swing joint in both sides of locking block activity region (14) inside has rotation locking block (17), rotate locking piece (17) just to be equipped with on the one side of annular tooth region (13) with annular tooth region (13) assorted lock tooth (18), rotate locking piece (17) one side back to annular tooth region (13) be equipped with oblique straight wall section (16) assorted oblique straight face (19), oblique straight wall section (16) from the one end of locking piece activity region (14) to the one end width of arc wall section (15) increase gradually, the length of oblique straight wall section (16) is greater than the length of rotating locking piece (17) oblique straight face (19), locking piece activity region (14) inside still is equipped with locking piece spring (20), is connected through locking piece spring (20) between two rotation locking pieces (17).

2. The convenient screwdriver according to claim 1, wherein a first blind hole (21) is formed in the outer side wall of the rotating adjusting block (6), a first limiting clamping bead (22) and a first supporting spring (23) are arranged inside the first blind hole (21), the first limiting clamping bead (22) is arranged at the opening of the first blind hole (21), one end of the first supporting spring (23) is connected with the bottom surface of the first blind hole (21), the other end of the first supporting spring (23) is connected with the first limiting clamping bead (22), a plurality of limiting clamping grooves (24) matched with the first limiting clamping bead (22) are formed in the inner side wall of the rotating adjusting groove (4), and the plurality of limiting clamping grooves (24) are located in the same horizontal plane and are distributed annularly about the central line of the rotating adjusting groove (4).

3. The convenient screwdriver according to claim 1, characterized in that one side of the screwdriver head (2) facing away from the rotating handle (1) is provided with a rotating limiting groove (25), the first tool bar sleeve through hole (7) is positioned on the bottom surface of the rotating limiting groove (25), a limiting clamping sleeve (26) and a compression spring (27) are arranged in the rotating limiting groove (25), the limiting clamping sleeve (26) is arranged at the opening of the rotating limiting groove (25), one end of the compression spring (27) is connected with one side of the limiting clamping sleeve (26), the other end of the compression spring (27) is connected with the bottom of the rotating limiting groove (25), the other side of the limiting clamping sleeve (26) is positioned outside the rotating limiting groove (25) and is provided with a flanging (28) on the outer side wall thereof, the side wall of the tool bar sleeve (3) is provided with a locking bead mounting groove (29) and a retaining ring groove (30), install in fender annular (30) and keep off ring (31), spacing cutting ferrule (26) are arranged in and are kept off between ring (31) and compression spring (27), be equipped with in lock pearl mounting groove (29) and rotate lock pearl (32), be equipped with on the inside wall of spacing cutting ferrule (26) and rotate lock pearl (32) assorted lock pearl activity ring channel (33).

4. The handy screwdriver as claimed in claim 3, wherein the opening of said locking bead movable annular groove (33) is provided with a fillet (34).

5. The convenient screwdriver according to claim 1, wherein a screwdriver handle groove (35) is formed in the end face of the other end of the rotating handle (1), a screwdriver head seat (36) is arranged in the screwdriver handle groove (35), the screwdriver head seat (36) is detachably connected with the screwdriver handle groove (35), a screwdriver head (37) is mounted on the screwdriver head seat (36), the screwdriver head (37) is detachably connected with the screwdriver head seat (36), and a screwdriver head mounting groove (38) matched with the screwdriver head (37) is formed in the end portion of the screwdriver rod (53).

6. The convenient screwdriver according to claim 5, wherein one end of the rotating adjusting block (6) is arranged in the rotating adjusting groove (4), the rotating handle (1) is provided with an adjusting block mounting clamping groove (39) matched with the other end of the rotating adjusting block (6), the other end of the rotating adjusting block (6) is mounted in the adjusting block mounting clamping groove (39) and clamped with the adjusting block mounting clamping groove, a cutter bar sleeve through hole III (40) matched with the cutter bar sleeve (3) is arranged between the bottom surface of the adjusting block mounting clamping groove (39) and the bottom surface of the cutter bar groove (35), the cutter bar sleeve mounting hole (9) is positioned on the screwdriver base (36), the cutter bar sleeve (3) sequentially passes through the cutter bar sleeve through hole I (7), the cutter bar sleeve through hole II (8) and the cutter bar sleeve through hole III (40) and is mounted in the cutter bar sleeve mounting hole (9), the screwdriver head seat (36) is detachably connected with the screwdriver rod sleeve (3).

7. The convenient screwdriver according to claim 5, wherein a first screwdriver head seat positioning groove (41) matched with the screwdriver head seat (36) is formed in the bottom surface of the screwdriver handle groove (35), an end cover (42) is clamped at an opening of the screwdriver handle groove (35), and a second screwdriver head seat positioning groove (43) matched with the screwdriver head seat (36) is formed in the end cover (42).

8. The convenient screwdriver according to claim 5, wherein a screwdriver head clamping groove (52) matched with the screwdriver head (37) is formed in the outer side wall of the screwdriver head seat (36), the screwdriver head clamping groove (52) is composed of two limiting clamping plates (44), the two limiting clamping plates (44) are arranged oppositely, one side of each limiting clamping plate (44) is fixed on the outer side wall of the screwdriver head seat (36), a clamping edge (45) is fixed on the other side of each limiting clamping plate (44), the clamping edge (45) inclines towards the inner side of the screwdriver head clamping groove (52), and a clamping surface (46) matched with the screwdriver head clamping groove (52) is formed in the side wall of the screwdriver head (37).

9. The convenient screwdriver as claimed in claim 5, wherein a second blind hole (47) is formed in the side wall of the screwdriver head (37), the second blind hole (47) is located on one side of the inner wall of the tool holder groove (35), a second supporting spring (49) and a top bead (48) are mounted in the second blind hole (47), the top bead (48) is placed at the opening of the second blind hole (47), one end of the second supporting spring (49) is connected with the bottom surface of the second blind hole (47), and the other end of the second supporting spring (49) is connected with the top bead (48).

10. The convenient screwdriver according to claim 1, characterized in that a grip sleeve (50) is sleeved outside the rotating handle (1), the grip sleeve (50) is clamped with the rotating handle (1), and anti-skid lines (51) are arranged on the outer side wall of the grip sleeve (50).

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