CN209207360U - A kind of interchangeable bit screwdriver of hand held rotation - Google Patents

Abstract

The utility model provides a kind of hand held rotation interchangeable bit screwdriver, including screwdriver portion and power part, power part are removably sleeved on the outside of screwdriver portion；Screwdriver portion includes handle, bearing, screw rod and driver bit, and bearing is inlaid in handle；Screw rod includes fixing end and working end, fixing end is equipped with fixed stop and fixed pin, fixed stop and fixing end integrally connected and the top for being located at fixing end, fixed pin and fixed stop integrally connected and the top for being located at fixed stop, fixed pin is inlaid in bearing, and working end is equipped with connecting pin, connecting pin and working end integrally connected, the tail end of driver bit is equipped with connecting pin bores, and connecting pin is removably mounted in connecting pin bores；Power part includes spring block, spring and casing；Spring one end is fixedly connected with spring block, and the spring other end is fixedly connected with described sleeve pipe；It is equipped with through-hole in spring block, is equipped with internal screw thread in casing；The utility model is time saving and energy saving, applied widely, saves space.

Description

A kind of interchangeable bit screwdriver of hand held rotation

Technical field

The utility model relates to driver technology fields more particularly to hand held to rotate interchangeable bit screwdriver.

Background technique

Screwdriver is for twisting screw so that a kind of specific purpose tool that screw is locked or loosened, usually there is one one Font cutter head or cross cutter head can be inserted into the line of rabbet joint or recess of screw cap, but in the line of rabbet joint of screw cap or recess Not of uniform size, such staff needs to carry the screwdriver of multiple and different sizes or driver bit of different shapes, thus Trouble is brought to the carrying work of tool.

In addition, screwdriver is generally divided into hand screwdriver and electric screw driver at present.Electric screw driver usually requires external Power supply has battery；External power supply uses the position for needing to yield to power supply, and including motor makes weight become weight；Contain The electric screw driver of battery, although using flexible, volume itself is larger heavier.Hand screwdriver is due to needing rotation manually Turn, rotates laborious and mill hand, and the speed and tightness of the movement speed of hand, firmly size decision parbuckle screw, handle is small to be used Come arduously, speed is unhappy, and cannot change the screwdriver of a variety of different models, goes out to carry heavy, also inconvenient, purchase cost increasing Add.

Utility model content

In view of the above-mentioned problems, the utility model provides a kind of interchangeable bit screwdriver of hand held rotation.

To achieve the above object, the utility model adopts the technical scheme that

A kind of interchangeable bit screwdriver of hand held rotation, including screwdriver portion and power part, the power part removably cover On the outside of the screwdriver portion.

The screwdriver portion includes handle, bearing, screw rod and driver bit, and the handle includes handheld terminal and connecting pin, The connecting pin is equipped with circular groove, and the bearing is inlaid in the groove of the connecting pin；The screw rod include fixing end and Working end, the fixing end are equipped with fixed stop and fixed pin, the fixed stop and the fixing end integrally connected and are located at The top of the fixing end, the fixed pin and the fixed stop integrally connected and the top for being located at the fixed stop, institute Fixed pin to be stated to be inlaid in the bearing, the working end is equipped with connecting pin, the connecting pin and the working end integrally connected, The tail end of the driver bit is equipped with connecting pin bores, and the connecting pin is removably mounted in the connecting pin bores.

The power part includes spring block, spring and casing；One end of the spring and the fixed company of the spring block It connects, the other end of the spring is fixedly connected with described sleeve pipe；It is equipped with through-hole in the spring block, is equipped in described sleeve pipe interior Screw thread, the spring block, the spring and described sleeve pipe concentrically axis.

Preferably, four connecting rods have been wholely set on the outside of described sleeve pipe, four connecting rods symmetrically set up separately two-by-two in institute The both sides of outside of sleeve are stated, two that the same side is located in four connecting rods are setting up and down.

Preferably, the length of the screw rod is greater than the total length of the power part.

Preferably, the diameter of the through-hole of the spring block is greater than the diameter of the screw rod, and the diameter of the through-hole is less than The outer diameter of the fixed stop.

Preferably, the internal diameter of the spring is identical as the diameter of the through-hole.

Preferably, the connecting pin is with magnetic prism.

Preferably, the cross section figure of the connecting pin bores and the cross section figure of the prism are identical.

Preferably, the driver bit is the wear-resisting metal cutter head that can be adsorbed by magnetic pole.

Preferably, the handheld terminal be upper surface be spherical surface and cylindrical of the edge without corner angle.

Preferably, the driver bit is the cross cutter head or linear type cutter head of interchangeable different size.

Compared with prior art, the utility model has the following beneficial effects: connecting handle and screw rod by bearing, guarantee in hand Handle being held when keeping screwdriver vertical, screw rod normally rotates；Power part is sleeved on screw rod, compression power portion, drives screw rod rotation, Play the effect for tightening or unscrewing screw, it is time saving, laborsaving, improve work efficiency；Driver bit is replaceable, increases the suitable of it With property, solves and need the worry with different size screwdriver, it is applied widely, save space.

Detailed description of the invention

Fig. 1 is that a kind of hand held of the utility model rotates the structural schematic diagram of interchangeable bit screwdriver.

Specific embodiment

To make to have further understanding to the purpose of this utility model, construction, feature and its function, hereby cooperate embodiment Detailed description are as follows.

Referring to Fig. 1, Fig. 1 is that a kind of hand held of the utility model rotates the structural schematic diagram of interchangeable bit screwdriver.Such as Shown in Fig. 1, the utility model provides a kind of interchangeable bit screwdriver of hand held rotation, including screwdriver portion and power part, power Portion is removably sleeved on the outside of screwdriver portion.

Screwdriver portion includes handle 1, bearing 2, screw rod 3 and driver bit 4, and handle 1 includes handheld terminal 11 and connecting pin 12, Connecting pin 12 is equipped with circular groove, and bearing 2 is inlaid in the groove of connecting pin 12 and gluing is fixed；Screw rod 3 includes fixing end 31 With working end 32, fixing end 31 is equipped with fixed stop 33 and fixed pin 34, fixed stop 33 and 31 integrally connected of fixing end and position In the top of fixing end 31, fixed pin 34 is with 33 integrally connected of fixed stop and positioned at the top of fixed stop 33, fixed pin 34 It is inlaid in bearing 2 and fixes by welding, working end 32 is equipped with connecting pin 35,32 one of connecting pin 35 and working end The tail end of connection, driver bit 4 is equipped with connecting pin bores 41, and connecting pin 35 is removably mounted in connecting pin bores 41.In use, 4 tail end of driver bit is inserted on connecting pin 35, and cutter head end is inserted in the line of rabbet joint of screw, and handle 1, which is against the palm of the hand, makes screwdriver It is whole vertical, handle 1 and screw rod 3 are connected by bearing 2, can guarantee that handle 1 is fixed and screw rod 3 rotates to drive screwdriver First 4 tighten or unscrew screw.Preferably, connecting pin 35 is with magnetic prism.Preferably, driver bit 4 be can be by magnetic pole The wear-resisting metal cutter head of absorption.Preferably, the cross section figure of connecting pin bores 41 and the cross section figure of prism are identical, prism The connecting pin 35 and connecting pin bores 41 of shape are mutually matched clamping, and driver bit 4 can be made to be driven by screw rod 3 and rotated, avoid skidding；Band Magnetic connecting pin 35 can adsorb driver bit 4, avoid the slippage of driver bit 4 when not in use.

Power part includes spring block 5, spring 6 and casing 7；One end of spring 6 is fixedly connected with spring block 5, spring 6 The other end be fixedly connected with casing 7, the both ends of spring 6 can be usually respectively welded on spring block 5 and casing 7, be made Stable connection；Spring block 5 be antifriction metal (AFM) block and it is interior be equipped with through-hole 51, spring block 5 can block solid in compressed spring 6 Determine block 33, prevents spring 6 from overhanging fixed stop 33 because extrusion deformation causes internal diameter to become larger；Internal screw thread 71, set are equipped in casing 7 Pipe 7 is metal threaded pipe, spring block 5, spring 6 and casing 7 concentrically axis.Power part can forward direction be sleeved on screw rod 3, I.e. spring block 5, which is located above, is sleeved on screw rod 3；Also it can be reversed and be sleeved on screw rod 3, i.e., casing 7 is located above suit On screw rod 3.In the case where screw rod 3 fixes, casing 7 is screwed on screw rod 3, is held 7 compressed spring 6 of casing, is being compressed During, the precession on screw rod 3 of casing 7 drives screw rod 3 to rotate, to tighten or unscrew screw.

Preferably, four connecting rods 72 have been wholely set on the outside of casing 7, four connecting rods 72 symmetrically set up separately two-by-two in casing 7 The both sides in outside, two that the same side is located in four connecting rods 72 are setting up and down.The setting of four connecting rods 72, makes power part work It is more convenient, in use, middle finger and index finger are inserted into respectively between the connecting rod of two sides, facilitate operation and force.

Preferably, the length of screw rod 3 is greater than the total length of power part.When guaranteeing normal suit, casing 7 can be screwed in spiral shell On bar 3, the work of total is facilitated to implement.

Preferably, the diameter of the through-hole 51 of spring block 5 is greater than the diameter of screw rod 3, guarantees that spring block 5 can be accurately set with On screw rod 3；The diameter of through-hole 51 is less than the outer diameter of fixed stop 33, guarantees that entire power part can play corresponding effect, if logical 51 diameter of hole is greater than 33 outer diameter of fixed stop, then entire screwdriver can not work normally.

Preferably, the internal diameter of spring 6 is identical as the diameter of through-hole 51.On the one hand guarantee that spring 6 is smoothly sleeved on screw rod 3 On, while avoiding 6 aperture of spring is excessive from causing to destroy structure because deforming excessively beyond spring block 5.

Preferably, handheld terminal 11 be upper surface be spherical surface and cylindrical of the edge without corner angle.The handheld terminal 11 of spherical surface It smoother can be contacted with the hand of staff, no corner angle, which are avoided that, to be injured, and so guarantees handheld terminal 11 and work when in use Reduce when the hand contact of personnel and is damaged because of long-time using hand of the screwdriver to staff.

Preferably, driver bit 4 is the cross cutter head or linear type cutter head of interchangeable different size.In different size 4 tail end of driver bit connecting pin bores 41 it is all the same, can guarantee its applicability；The cross cutter head or linear type of different size Cutter head is able to satisfy the demand of different screws, and it is more screwdriver trouble to solve carrying.

In work, driver bit 4 is first selected according to the specification of the screw line of rabbet joint, driver bit 4 is inserted into connecting pin 35 On；If it is screw is tightened, power part forward direction is set with, casing 7 is located below at this time, and palm resists handle 1, middle finger and index finger It is inserted between the connecting rod of 7 two sides of casing, lifts upwards, compressed spring 6 respectively, the upward precession of casing 7 drives the rotation of screw rod 3 to twist Tight screw, is compressed to most next in spring 6, picks up screwdriver, due to the self-healing elastic force of spring 6, casing 7 is pushed to return to screw rod 3 working end 32, and then can open a new round tightens work；If it is screw is unscrewed, reversely it is set with through power part, at this time Casing 7 is located above, and is held handle 1 on the other hand, is on the other hand pressed down casing 7, the downward precession of casing 7 while compressed spring 6, It drives the rotation of screw rod 3 to unscrew screw, is compressed in spring 6 most next, picks up screwdriver, due to the self-healing elastic force of spring 6, push away Dynamic casing 7 returns to the fixing end 31 of screw rod 3, and then can open a new round tightens work.

From the above mentioned, a kind of hand held of the utility model rotates interchangeable bit screwdriver, connects handle and spiral shell by bearing Bar guarantees that screw rod normally rotates when hand-held handle keeps screwdriver vertical；Power part is sleeved on screw rod, compression power portion, band Dynamic screw rod rotation, plays the effect for tightening or unscrewing screw, time saving, laborsaving, improve work efficiency；Driver bit is replaceable, The applicability for increasing it solves and needs the worry with different size screwdriver.

The utility model is described by above-mentioned related embodiment, however above-described embodiment is only to implement the utility model Example.It must be noted that the embodiment disclosed is not limiting as the scope of the utility model.On the contrary, not departing from this It is changed and retouched made by the spirit and scope of utility model, belongs to the scope of patent protection of the utility model.

Claims (10)

1. a kind of hand held rotates interchangeable bit screwdriver, it is characterised in that: including screwdriver portion and power part, the power part can It is releasably sleeved on the outside of the screwdriver portion；

The screwdriver portion includes handle, bearing, screw rod and driver bit, and the handle includes handheld terminal and connecting pin, described Connecting pin is equipped with circular groove, and the bearing is inlaid in the groove of the connecting pin；The screw rod includes fixing end and work End, the fixing end are equipped with fixed stop and fixed pin, and the fixed stop is with the fixing end integrally connected and positioned at described The top of fixing end, the fixed pin and the fixed stop integrally connected and the top for being located at the fixed stop, it is described solid Rationed marketing is inlaid in the bearing, and the working end is equipped with connecting pin, the connecting pin and the working end integrally connected, described The tail end of driver bit is equipped with connecting pin bores, and the connecting pin is removably mounted in the connecting pin bores；

The power part includes spring block, spring and casing；One end of the spring is fixedly connected with the spring block, institute The other end for stating spring is fixedly connected with described sleeve pipe；It is equipped with through-hole in the spring block, is equipped with internal screw thread in described sleeve pipe, The spring block, the spring and described sleeve pipe concentrically axis.

2. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: be wholely set on the outside of described sleeve pipe There are four connecting rods, four connecting rods symmetrically set up the both sides on the outside of described sleeve pipe separately two-by-two, are located in four connecting rods Two of the same side are setting up and down.

3. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: the length of the screw rod is greater than institute State the total length of power part.

4. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: the through-hole of the spring block Diameter is greater than the diameter of the screw rod, and the diameter of the through-hole is less than the outer diameter of the fixed stop.

5. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: the internal diameter of the spring with it is described The diameter of through-hole is identical.

6. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: the connecting pin is magnetic for band Prism.

7. hand held as claimed in claim 6 rotates interchangeable bit screwdriver, it is characterised in that: the cross section of the connecting pin bores Figure is identical as the cross section figure of the prism.

8. hand held as claimed in claim 6 rotates interchangeable bit screwdriver, it is characterised in that: the driver bit is can be by magnetic The wear-resisting metal cutter head of pole absorption.

9. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: the handheld terminal is that upper surface is Spherical surface and cylindrical of the edge without corner angle.

10. hand held as described in claim 1 rotates interchangeable bit screwdriver, it is characterised in that: the driver bit is that can replace The cross cutter head or linear type cutter head of the different size changed.