CN211940674U

CN211940674U - Screwdriver with replaceable working head

Info

Publication number: CN211940674U
Application number: CN202020099966.6U
Authority: CN
Inventors: 徐袁林; 宋伟波; 李华娟; 李玲萍; 陈志华
Original assignee: Suzhou Longning Electric Power Engineering Co ltd
Current assignee: Suzhou LONGNING Electric Power Technology Co.,Ltd.
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-11-17
Anticipated expiration: 2030-01-16

Abstract

A screwdriver with a replaceable working head aims to solve the problem that a screwdriver head cannot be replaced. The key points of the technical scheme are as follows: including screwdriver handle and screwdriver pole, logical groove has been seted up on the top of screwdriver handle, the both ends of screwdriver pole are provided with a word screwdriver bit and cross screwdriver bit respectively, the degree of depth that leads to the groove is greater than half of the length of screwdriver pole, it communicates with each other with the both sides face of screwdriver handle to lead to the groove, the top of screwdriver handle is provided with two clamping pieces, the bottom of clamping piece is provided with the slider, the spout has been seted up on the top of screwdriver handle, the slider inserts in the spout, and remove in the spout, the screwdriver pole is located between two clamping pieces, the intermediate position of screwdriver pole rotates with two clamping pieces to be connected, be provided. The utility model discloses possess the advantage of being convenient for change different working heads, reduced user's economic expenditure, made things convenient for user's use, improved current screwdriver's practicality.

Description

Screwdriver with replaceable working head

Technical Field

The utility model relates to a screwdriver technical field, more specifically says, it relates to a screwdriver of removable working head.

Background

A screwdriver is a tool used to turn a screw to force it into place, usually having a thin wedge-shaped head that fits into a slot or recess in the head of the screw, mainly in the form of a straight line and a cross, and also commonly a hex driver, both inner and outer hex.

The screwdriver is a necessary hardware tool for each family, but the conventional screwdriver cannot replace the screwdriver head, and when a user needs to use different screwdrivers, the user needs to prepare a large number of screwdrivers, so that the economic expenditure of the user is increased, inconvenience is brought to the use of the user, and the practicability of the conventional screwdriver is reduced.

Chinese patent with publication number CN206780262U discloses a screwdriver with replaceable screwdriver bits, which comprises a handle, a clamping groove is formed in the left side of the handle, a fixing block is arranged inside the clamping groove, a screwdriver bit body is fixedly connected to the left side of the fixing block, a first through hole is longitudinally formed in the left side of the top of the handle, and a second through hole is formed in the right side of the top of the fixing block. The utility model discloses a set up the handle, the draw-in groove, the fixed block, the screwdriver head body, first through-hole, the second through-hole, first spring, the baffle, first removable pin, the lantern ring, a housing, the second removable pin, the pulley, the diaphragm, keep off the ring, the second spring, the fixed strip, the spacing groove, the problem of the unable screwdriver head of changing of current screwdriver has been solved, this screwdriver possesses the advantage of being convenient for change different screwdriver heads, user's economic expenditure has been reduced, user's use has been made things convenient for, the practicality of current screwdriver has been improved, user's work efficiency has been improved.

And simultaneously, the utility model provides a new technical scheme solves the problem that can't change the screw cutter head.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a screwdriver of removable working head, screwdriver pole and screwdriver handle of a knife swivelling joint, clamping piece and clamping device are used for fixed screwdriver pole, reach the purpose of changing the working head of screwdriver pole.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a screwdriver of removable working head, includes screwdriver handle and screwdriver pole, the logical groove that is used for inserting screwdriver pole is seted up on the top of screwdriver handle, screwdriver pole's both ends are provided with a word screwdriver bit and cross screwdriver bit respectively, the degree of depth that leads to the groove is greater than half of the length of screwdriver pole, it communicates with each other with the both sides face of screwdriver handle to lead to the groove, screwdriver handle's top is provided with two clamping pieces, two the clamping piece symmetry sets up the both sides at leading to groove top notch, the bottom of clamping piece is provided with the slider, the spout has been seted up on screwdriver handle's top, the slider inserts in the spout, and removes in the spout, screwdriver pole is located between two clamping pieces, screwdriver pole's intermediate position and two clamping pieces rotate to be connected, two be provided.

By adopting the technical scheme, the screwdriver rod is provided with two working heads, a straight screwdriver head and a cross screwdriver head can be selected by users respectively, when the working heads need to be replaced, the clamping device on the clamping pieces are loosened, the two clamping pieces are moved, the distance between the two clamping pieces is increased, then the screwdriver rod is rotated, the middle position of the screwdriver rod is connected with the two clamping pieces in a rotating manner, the screwdriver rod can smoothly rotate, one end of the screwdriver rod originally inserted in the through groove rotates out of the through groove, one end of the screwdriver rod originally positioned outside the through groove rotates into the through groove, so that the replacement of the working heads of the screwdriver rod is realized, then the clamping pieces are moved oppositely, the clamping pieces are attached to the screwdriver rod, the two clamping pieces are clamped by the clamping device, and the screwdriver rod is stably connected with the screwdriver handle. The utility model discloses possess the advantage of being convenient for change different working heads, reduced user's economic expenditure, made things convenient for user's use, improved current screwdriver's practicality.

The utility model discloses further set up to: the screw driver is characterized in that first through holes are symmetrically formed in the two clamping pieces, second through holes are formed in the middle of the screw driver rod, the aperture of the second through holes is the same as that of the first through holes, and first rotating shafts penetrate through the first through holes and the second through holes.

Through adopting above-mentioned technical scheme, through-hole one and through-hole two are passed in proper order to pivot one, realize the rotation between screwdriver pole and the clamping piece and be connected.

The utility model discloses further set up to: the first rotating shaft is a threaded rod, the length of the first rotating shaft is equal to the diameter of the screwdriver handle, and the clamping device is a clamping block fixed at one end of the first rotating shaft and a nut seat sleeved at the other end of the first rotating shaft.

Through adopting above-mentioned technical scheme, when the tight screwdriver pole of clamping piece clamp is passed through to needs, clockwise turning nut seat, make nut seat remove to fixture block place direction, press from both sides tight two clamping pieces, when the tight screwdriver pole of needs rotation, earlier anticlockwise turning nut seat, make nut seat remove to the fixture block dorsad, can loosen the power of screwing up on the clamping piece, later remove the clamping piece, pivot one possesses sufficient length, can supply the clamping piece to remove along it, the clamping piece is established on pivot one all the time, nut seat also can not follow pivot one and drop, it can to rotate the screwdriver pole at last.

The utility model discloses further set up to: the nut seat is fixedly connected with a support lug.

By adopting the technical scheme, the support lug provides a better force fulcrum for an operator, so that the operator can rotate the nut seat more conveniently in a labor-saving manner.

The utility model discloses further set up to: the diameter of pivot one equals the diameter of screwdriver pole and the thickness sum of two clamping pieces, clamping device is for pressing from both sides tight cap, the top that presss from both sides tight cap is offered the through-hole three that is used for passing the screwdriver pole, fixedly connected with annular rubber pad on the inside wall that presss from both sides tight cap, the internal diameter of annular rubber pad is less than the diameter of screwdriver pole and the thickness sum of two clamping pieces.

Through adopting above-mentioned technical scheme, when the tight screwdriver pole of clamping through the clamping piece is pressed from both sides to needs, remove the clamping piece earlier, make two clamping pieces all paste tightly on the screwdriver pole, at this moment, the both ends of pivot one are leveled with the clamping piece, will press from both sides the through-hole three alignment screwdriver pole of tight sleeve cap again to will press from both sides tight sleeve cap cover and establish the outside at two clamping pieces, the ring rubber pad of the inside wall that presss from both sides tight sleeve cap receives pressure extrusion and produces deformation, form elasticity, ring rubber pad's elasticity compresses tightly two clamping pieces, thereby fix the screwdriver pole. When the screwdriver rod needs to be rotated, the clamping sleeve cap is firstly pulled down, then the clamping piece is moved, the first rotating shaft has enough length for the clamping piece to move along the first rotating shaft, the clamping piece is always sleeved on the first rotating shaft, and finally the screwdriver rod is rotated.

The utility model discloses further set up to: and the notches at the two sides of the through groove are filled with limiting strips, and the bottom of each limiting strip is rotatably connected with the inner side wall of the through groove through a second rotating shaft.

Through adopting above-mentioned technical scheme, rotate earlier spacing before the screwdriver pole, with spacing from leading to the groove roll-out, after the screwdriver pole changes over to the logical inslot, change over to the logical inslot with spacing again, change over to spacing and the contact of screwdriver pole in the logical inslot, promoted the stability that the screwdriver pole is located logical inslot, simultaneously, the packing of spacing also makes the surface of screwdriver handle level and smooth.

The utility model discloses further set up to: the top end of the screwdriver handle is in threaded connection with a limiting lantern ring.

Through adopting above-mentioned technical scheme, the setting of spacing lantern ring can avoid spacing strip to roll out from leading to the groove is automatic.

The utility model discloses further set up to: grooves are formed in two ends of the notches in the two sides of the through groove and communicated with the through groove.

Through adopting above-mentioned technical scheme, the setting of recess has made things convenient for the roll-out of spacing, and when needs roll-out spacing, operating personnel's finger stretches into the recess, and the finger pinches spacing, can very conveniently roll-out spacing from leading to the groove.

The utility model discloses further set up to: arc-shaped limiting grooves are symmetrically arranged on the two clamping pieces.

Through adopting above-mentioned technical scheme, when the clamping piece presss from both sides tightly on the screwdriver pole, the screwdriver pole is absorbed in the arc spacing groove, and the arc spacing groove can increase the area of contact between screwdriver pole and the clamping piece to promote the stability of being connected between clamping piece and the screwdriver pole.

To sum up, the utility model discloses following beneficial effect has:

the utility model provides a screwdriver of removable working head, there are two working heads on the screwdriver pole, it can supply the user to select for a word screwdriver head and cross screwdriver head respectively, when the working head needs to be changed, loosen clamping device on the clamping piece, remove two clamping pieces, make the distance increase between two clamping pieces, rotate the screwdriver pole again after that, because the intermediate position of screwdriver pole rotates with two clamping pieces and is connected, the screwdriver pole can smoothly rotate, the one end that the screwdriver pole originally inserted in leading to the groove is changeed out from leading to the groove, and the one end that originally lies in outside leading to the groove on the screwdriver pole changes over into leading to the groove, thereby realize the change of screwdriver pole working head, later remove the clamping piece in opposite directions again, make the clamping piece paste tight screwdriver pole, reuse clamping device presss from both sides two clamping pieces, make the screwdriver pole stably be connected. The utility model discloses possess the advantage of being convenient for change different working heads, reduced user's economic expenditure, made things convenient for user's use, improved current screwdriver's practicality.

Drawings

FIG. 1 is a first external view of the first embodiment;

FIG. 2 is a second external schematic view of the first embodiment;

FIG. 3 is a schematic diagram of an internal structure of the first embodiment;

FIG. 4 is a first external view of the second embodiment;

FIG. 5 is a second external view of the second embodiment;

fig. 6 is a schematic diagram of the internal structure of the second embodiment.

In the figure: 1. a screwdriver handle; 2. a screwdriver rod; 3. a through groove; 4. a clip; 5. a slider; 6. a chute; 7. a first rotating shaft; 8. a clamping block; 9. a nut seat; 10. supporting a lug; 11. clamping the sleeve cap; 12. a third through hole; 13. a limiting strip; 14. a limiting lantern ring; 15. and (4) a groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

The first embodiment is as follows: a screwdriver with a replaceable working head is disclosed, as shown in figures 1-3, and comprises a screwdriver handle 1 made of wood or hard plastic and a screwdriver rod 2 made of metal material, wherein the top end of the screwdriver handle 1 is provided with a through groove 3 for inserting the screwdriver rod 2, two ends of the screwdriver rod 2 are respectively and integrally formed with a straight screwdriver bit and a cross screwdriver bit, the depth of the through groove 3 is more than half of the length of the screwdriver rod 2, the through groove 3 is communicated with two side surfaces of the screwdriver handle 1, the top end of the screwdriver handle 1 is provided with two clamping pieces 4 made of metal material, the two clamping pieces 4 are symmetrically arranged at two sides of the notch at the top end of the through groove 3, the two clamping pieces 4 are symmetrically provided with arc-shaped limiting grooves, the bottom of the clamping pieces 4 are integrally formed with a sliding block 5, the top end of the screwdriver handle 1 is provided with a sliding groove 6, in order to ensure that the sliding block 5 does not fall off from the sliding groove 6, a sliding rod (not shown in the figure) can be fixed in the sliding groove 6, and the sliding block 5 is sleeved on the sliding rod, so that the sliding block 5 is prevented from falling off from the sliding groove 6. The screwdriver rod 2 is located between the two clamping pieces 4, the first through holes are symmetrically formed in the two clamping pieces 4, the second through holes are formed in the middle of the screwdriver rod 2, the hole diameter of the second through hole is the same as that of the first through hole, the first rotating shaft 7 penetrates through the first through hole and the second through hole, the middle of the screwdriver rod 2 is rotatably connected with the two clamping pieces 4 through the first rotating shaft 7, and the clamping devices are arranged on the two clamping pieces 4. The first rotating shaft 7 is a threaded rod, the length of the first rotating shaft 7 is equal to the diameter of the screwdriver handle 1, and the clamping device is a clamping block 8 welded and fixed at one end of the first rotating shaft 7 and a nut seat 9 sleeved at the other end of the first rotating shaft 7. The nut seat 9 is integrally formed with a support lug 10, and the support lug 10 provides a better force fulcrum for an operator, so that the operator can rotate the nut seat 9 more conveniently in a labor-saving manner.

All pack in leading to the both sides notch of groove 3 has spacing 13, and the bottom of spacing 13 is connected through two rotations of pivot with the inside wall that leads to groove 3. Both ends of the notches at both sides of the through groove 3 are provided with grooves 15, and the grooves 15 are communicated with the through groove 3.

The top end of the screwdriver handle 1 is in threaded connection with a limiting lantern ring 14.

The working principle is as follows: when the working heads need to be replaced, the limiting sleeve ring 14 is rotated down from the screwdriver handle 1, fingers extend into the grooves 15, the limiting strips 13 are pinched by the fingers, the limiting strips 13 are rotated out from the through grooves 3, then the nut seat 9 is rotated anticlockwise, the nut seat 9 moves towards the clamping block 8, the force for screwing the clamping pieces 4 can be loosened, then the clamping pieces 4 are moved, the sliding blocks 5 slide in the sliding grooves 6, so that the clamping pieces 4 are moved, the rotating shaft I7 has enough length for the clamping pieces 4 to move along, the clamping pieces 4 are sleeved on the rotating shaft I7, the nut seat 9 cannot fall off from the rotating shaft I7 all the time, the distance between the two clamping pieces 4 is increased along with the movement of the clamping pieces 4, and then the screwdriver rod 2 is rotated, because the intermediate position of screwdriver pole 2 and two clamping pieces 4 realize through pivot 7 that the rotation is connected, screwdriver pole 2 can smoothly rotate, screwdriver pole 2 originally inserts the one end in leading to groove 3 and roll out from leading to groove 3, and the one end that originally lies in outside leading to groove 3 on screwdriver pole 2 changes over to leading to groove 3, thereby realize the change of 2 working heads of screwdriver pole, later remove clamping piece 4 in opposite directions again, make clamping piece 4 paste tight screwdriver pole 2, clamping piece 4 presss from both sides when tight on screwdriver pole 2, screwdriver pole 2 is absorbed in the arc spacing groove, the contact area between screwdriver pole 2 and the clamping piece 4 can be increased to the arc spacing groove, thereby promote the stability of being connected between clamping piece 4 and the screwdriver pole 2. And then, the nut seat 9 is rotated clockwise, so that the nut seat 9 moves towards the direction of the clamping block 8 to clamp the two clamping pieces 4, and the screwdriver rod 2 is fixed. Then, the limiting strips 13 are turned into the through grooves 3 again, the limiting strips 13 turned into the through grooves 3 are in contact with the screwdriver rod 2, the stability of the screwdriver rod 2 located in the through grooves 3 is improved, and meanwhile, the outer surface of the screwdriver handle 1 is smooth due to the filling of the limiting strips 13. And finally, the limiting lantern ring 14 is sleeved on the screwdriver handle 1 again, so that the limiting strip 13 is prevented from automatically rotating out of the through groove 3. The utility model discloses possess the advantage of being convenient for change different working heads, reduced user's economic expenditure, made things convenient for user's use, improved current screwdriver's practicality.

Example two: compared with the first embodiment, the second embodiment is different in that: as shown in fig. 4-6, the diameter of the first rotating shaft 7 is equal to the sum of the thicknesses of the screwdriver rod 2 and the two clamping pieces 4, the clamping device is a clamping sleeve cap 11, a third through hole 12 for passing through the screwdriver rod 2 is formed in the top of the clamping sleeve cap 11, an annular rubber gasket is fixedly connected to the inner side wall of the clamping sleeve cap 11 through an adhesive, and the inner diameter of the annular rubber gasket is smaller than the sum of the thicknesses of the screwdriver rod 2 and the two clamping pieces 4.

When the screwdriver rod 2 needs to be clamped through the clamping piece 4, the clamping piece 4 is moved firstly, the two clamping pieces 4 are made to be attached to the screwdriver rod 2 tightly, at the moment, the two ends of the first rotating shaft 7 are flush with the clamping piece 4, then the three 12 through holes of the clamping sleeve cap 11 are aligned to the screwdriver rod 2, the clamping sleeve cap 11 is sleeved outside the two clamping pieces 4, the annular rubber pad on the inner side wall of the clamping sleeve cap 11 is squeezed under pressure to deform, elasticity is formed, the two clamping pieces 4 are tightly pressed by the elasticity of the annular rubber pad, and the screwdriver rod 2 is fixed. When the screwdriver rod 2 needs to be rotated, the clamping sleeve cap 11 is firstly pulled down, then the clamping piece 4 is moved, the first rotating shaft 7 has enough length for the clamping piece 4 to move along the first rotating shaft, the clamping piece 4 is always sleeved on the first rotating shaft 7, and finally the screwdriver rod 2 is rotated.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a screwdriver of removable working head, includes screwdriver handle (1) and screwdriver pole (2), logical groove (3) that are used for inserting screwdriver pole (2) are seted up on the top of screwdriver handle (1), the both ends of screwdriver pole (2) are provided with word screwdriver bit and cross screwdriver bit, its characterized in that respectively: the depth that leads to groove (3) is greater than half of the length of screwdriver pole (2), it communicates with each other with the both sides face of screwdriver handle (1) to lead to groove (3), the top of screwdriver handle (1) is provided with two clamping pieces (4), two clamping piece (4) symmetry sets up the both sides at leading to groove (3) top notch, the bottom of clamping piece (4) is provided with slider (5), spout (6) have been seted up on the top of screwdriver handle (1), during slider (5) inserted spout (6), and removed in spout (6), screwdriver pole (2) are located between two clamping pieces (4), the intermediate position and two clamping pieces (4) of screwdriver pole (2) rotate and are connected, two be provided with clamping device on clamping piece (4).

2. The screwdriver according to claim 1, wherein the screwdriver comprises: a first through hole is symmetrically formed in each clamping piece (4), a second through hole is formed in the middle of the screwdriver rod (2), the aperture of the second through hole is the same as that of the first through hole, and a first rotating shaft (7) penetrates through the first through hole and the second through hole.

3. The screwdriver according to claim 2, wherein the screwdriver comprises: the first rotating shaft (7) is a threaded rod, the length of the first rotating shaft (7) is equal to the diameter of the screwdriver handle (1), and the clamping device is a clamping block (8) fixed at one end of the first rotating shaft (7) and a nut seat (9) sleeved at the other end of the first rotating shaft (7).

4. A screwdriver with replaceable working head as claimed in claim 3, wherein: the nut seat (9) is fixedly connected with a support lug (10).

5. The screwdriver according to claim 2, wherein the screwdriver comprises: the diameter of pivot (7) equals the diameter of screwdriver pole (2) and the thickness sum of two clamping pieces (4), clamping device is tight cap (11) of clamp, the three (12) of through-hole that are used for passing screwdriver pole (2) are offered at the top that presss from both sides tight cap (11), fixedly connected with annular rubber pad on the inside wall of tight cap (11) of clamp, the internal diameter of annular rubber pad is less than the diameter of screwdriver pole (2) and the sum of the thickness of two clamping pieces (4).

6. The screwdriver according to claim 1, wherein the screwdriver comprises: the groove opening on the two sides of the through groove (3) is filled with a limiting strip (13), and the bottom of the limiting strip (13) is rotatably connected with the inner side wall of the through groove (3) through a second rotating shaft.

7. The screwdriver with the replaceable working head as claimed in claim 6, wherein: the top end of the screwdriver handle (1) is in threaded connection with a limiting lantern ring (14).

8. The screwdriver according to claim 7, wherein the screwdriver comprises: grooves (15) are formed in two ends of the notches in the two sides of the through groove (3), and the grooves (15) are communicated with the through groove (3).

9. The screwdriver according to claim 8, wherein the screwdriver comprises: arc-shaped limiting grooves are symmetrically arranged on the two clamping pieces (4).