CN216577588U

CN216577588U - Multi-head combined screwdriver for precision instrument

Info

Publication number: CN216577588U
Application number: CN202122655624.5U
Authority: CN
Inventors: 朱天英
Original assignee: Zhejiang Yida Electric Appliance Co ltd
Current assignee: Zhejiang Yida Electric Appliance Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-05-24
Anticipated expiration: 2031-11-02

Abstract

The utility model discloses a multi-head combined screwdriver for a precision instrument, which comprises a hard shell and a screwdriver rod, wherein a movable plate is fixedly arranged at the top end of the screwdriver rod, the movable plate is arranged in the hard shell, a threaded rod penetrates through the top end of the movable plate, the movable plate is connected with the threaded rod through threads, a first gear is fixedly arranged at the top end of the threaded rod, a protective cover is arranged at the top end of the hard shell, a rotating rod is fixedly arranged at the bottom end in the protective cover, a second gear is fixedly arranged at the outer end of the rotating rod, and the first gear is meshed with the second gear. Make bull stick, second gear and first gear drive the threaded rod through rotating the protection casing and rotate, the fly leaf can drive the cutter arbor and remove along the threaded rod this moment to the length of control cutter arbor extension crust bottom, the length of cutter arbor can carry out nimble regulation according to the in-service use demand, very big improvement the convenience in use, the flexibility is stronger, it is very convenient to use.

Description

Multi-head combined screwdriver for precision instrument

Technical Field

The utility model relates to the technical field of screwdrivers, in particular to a multi-head combined screwdriver for a precision instrument.

Background

Most instruments are fixed by screws, and during assembly and disassembly, the screws are required to be screwed, and during screwing, a special tool is required, the screwdriver is a tool for screwing the screws to force the screws into place, and generally has a thin wedge-shaped head which can be inserted into a slot or a notch of a screw head, also called a screwdriver, and the screwdriver mainly comprises a straight screw and a cross screw, and also commonly comprises a hexagonal screwdriver which comprises an inner hexagon and an outer hexagon.

The combined screwdriver can only replace screwdriver heads generally, the length of the cutter rod is fixed, screwing work of different positions cannot be flexibly adapted according to actual use requirements when the combined screwdriver is used, use convenience is low, flexibility is poor, and use is very inconvenient.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a multi-head combined screwdriver for a precision instrument, and solves the problems that the combined screwdriver can only replace the screwdriver head generally, the length of a cutter rod is fixed, the combined screwdriver cannot flexibly adapt to screwing work at different positions according to actual use requirements, the use convenience is low, the flexibility is poor, and the use is very inconvenient.

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

the multi-head combined screwdriver for the precision instrument comprises a hard shell, a screwdriver rod and a screwdriver head, wherein the screwdriver rod and the screwdriver head are both arranged at the bottom of the hard shell, the top end of the cutter bar extends into the hard shell, the screwdriver head is arranged at the bottom of the cutter bar, a movable plate is fixedly arranged at the top end of the cutter bar, the movable plate is arranged in the hard shell, a threaded rod penetrates through the top end of the movable plate, the movable plate is connected with the threaded rod through threads, the threaded rod is arranged on one side of the cutter rod, the threaded rod is arranged in the hard shell and extends to the top of the hard shell, a first gear is fixedly arranged at the top end of the threaded rod, a protective cover is arranged at the top of the hard shell, the first gear is arranged in the protective cover, a rotating rod is fixedly arranged at the bottom end inside the protective cover, a second gear is fixedly arranged at the outer end of the rotating rod, the first gear is arranged on one side of the second gear, and the first gear is meshed with the second gear.

Preferably, the bottom end of the rotating rod is movably connected with the top end of the hard shell through a bearing, and the rotating rod is arranged on one side of the threaded rod.

Preferably, a guide rod is arranged inside the hard shell, the guide rod penetrates through the movable plate, the movable plate is in sliding connection with the guide rod, the guide rod is arranged on the other side of the cutter bar, and two ends of the guide rod are fixedly connected with the top end and the bottom end inside the hard shell respectively.

Preferably, guide bar and threaded rod use cutter arbor axis symmetric distribution, the threaded rod bottom passes through bearing swing joint with the inside bottom of crust, the threaded rod outer end passes through sealed bearing swing joint with the inside top of crust.

Preferably, the outer end of the hard shell is fixedly sleeved with a handle sleeve, the protective cover is arranged at the top of the handle sleeve, and the cutter bar penetrates through the handle sleeve.

Preferably, the cutter arbor bottom mounting is equipped with the plug, the plug bottom mounting is equipped with magnet, criticize first top and seted up the recess, the plug all establishes inside the recess with magnet, just recess and plug looks adaptation, criticize the head and make for the metal material.

Preferably, anti-skidding grooves are processed at the outer end of the handle sleeve and the outer end of the protective cover.

Compared with the prior art, the utility model has the beneficial effects that: this a bull combination formula screwdriver for precision instruments, make the bull drive second gear rotation through rotating the protection casing, the second gear can make the threaded rod rotate through rotating with first gear engagement when rotating, the threaded rod can make the fly leaf remove along the threaded rod when rotating, can drive the cutter arbor and remove together when the fly leaf removes, thereby the length of control cutter arbor stretching out the crust bottom, the length of cutter arbor can carry out nimble regulation according to the in-service use demand, very big improvement the convenience in use, the flexibility is stronger, it is very convenient to use.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic cross-sectional perspective view of the present invention;

FIG. 3 is a schematic perspective view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is a perspective view of the plug of the present invention;

FIG. 5 is a schematic perspective view of the batch head according to the present invention.

In the figure: the device comprises a hard shell 1, a cutter rod 2, a batch head 3, a movable plate 4, a guide rod 5, a threaded rod 6, a first gear 7, a protective cover 8, a rotating rod 9, a second gear 10, a handle sleeve 11, a groove 12, a plug 13 and a magnet 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-5, a multi-head combined screwdriver for a precision instrument includes a hard shell 1, a screwdriver rod 2 and a screwdriver head 3, wherein the screwdriver rod 2 and the screwdriver head 3 are both arranged at the bottom of the hard shell 1, the top end of the screwdriver rod 2 extends into the hard shell 1, the screwdriver head 3 is arranged at the bottom of the screwdriver rod 2, a movable plate 4 is fixedly arranged at the top end of the screwdriver rod 2, the movable plate 4 is arranged inside the hard shell 1, a threaded rod 6 is arranged at the top end of the movable plate 4 in a penetrating manner, the movable plate 4 is in threaded connection with the threaded rod 6, so that the movable plate 4 can drive the screwdriver rod 2 to move along the threaded rod 6 when the threaded rod 6 rotates, thereby controlling the length of the screwdriver rod 2 extending out of the bottom of the hard shell 1, the threaded rod 6 is arranged at one side of the screwdriver rod 2, the threaded rod 6 is arranged inside the hard shell 1 and extends to the top of the hard shell 1, a first gear 7 is fixedly arranged at the top end of the threaded rod 6, the utility model discloses a hard shell, including crust 1, protection casing 8, bull stick 9, first gear 7 and second gear 10, the protection casing 8 can play the guard action to first gear 7 and second gear 10, also makes things convenient for the finger to rotate and drive bull stick 9 and rotate, first gear 7 is established inside protection casing 8, the inside bottom mounting of protection casing 8 is equipped with bull stick 9, the fixed second gear 10 that is equipped with in bull stick 9 outer end, first gear 7 is established in second gear 10 one side, first gear 7 and second gear 10 intermeshing, first gear 7 and second gear 10 play power transmission's effect.

The bottom end of the rotating rod 9 is movably connected with the top end of the hard shell 1 through a bearing, the rotating rod 9 is arranged on one side of the threaded rod 6, and the rotating rod 9 drives the second gear 10 to rotate and also plays a role in connecting the protective cover 8.

The hard shell comprises a hard shell body 1 and is characterized in that a guide rod 5 is arranged inside the hard shell body 1, the guide rod 5 penetrates through a movable plate 4, the movable plate 4 is in sliding connection with the guide rod 5, the guide rod 5 is arranged on the other side of a cutter bar 2, two ends of the guide rod 5 are fixedly connected with the top end and the bottom end inside the hard shell body 1 respectively, and the guide rod 5 plays a role in guiding the movable plate 4.

The guide rod 5 and the threaded rod 6 are symmetrically distributed along the axis of the cutter rod 2, the bottom end of the threaded rod 6 is movably connected with the bottom end inside the hard shell 1 through a bearing, the outer end of the threaded rod 6 is movably connected with the top end inside the hard shell 1 through a sealing bearing, the symmetric distribution is uniform in hand, the cutter rod 2 is more stable when moving up and down, and the bearing connection facilitates the rotation of the threaded rod 6.

The fixed cover in 1 outer end of crust is equipped with handle cover 11, protection casing 8 is established at handle cover 11 top, cutter arbor 2 runs through handle cover 11, and handle cover 11 is more convenient for hold, has improved use comfort.

2 bottom mounting of cutter arbor is equipped with

plug

13, 13 bottom mounting of plug is equipped with magnet 14, criticize first 3 tops and offer recess 12, plug 13 all establishes inside recess 12 with magnet 14, just recess 12 and plug 13 looks adaptation, criticize first 3 and make for the metal material, plug 13 and recess 12 adaptation make criticize first 3 can be connected with 2 grafting of cutter arbor, and magnet 14 has then improved the stability of criticizing first 3 for criticize first 3 difficult and the cutter arbor 2 separation.

Anti-skidding grooves are formed in the outer ends of the handle sleeve 11 and the outer end of the protective cover 8, the handle sleeve 11 can be held conveniently and can rotate conveniently through the anti-skidding grooves, and meanwhile the protective cover 8 can also rotate conveniently.

When in use: different types of screwdriver heads 3 are installed according to actual use requirements, the screwdriver heads 3 and the screwdriver rods 2 are connected in an inserting mode, when the screwdriver heads 3 are replaced, the plugs 13 and the magnets 14 are inserted into the grooves 12 on the new screwdriver heads 3, the screwdriver heads 3 are made of metal materials, the magnets 14 can suck the screwdriver heads 3 to enable the plugs 13 not to be separated from the grooves 12 easily, the screwdriver rods 2 and the screwdriver heads 3 cannot be separated easily, the length of the screwdriver rods 2 can be adjusted according to the actual use requirements during use, only the protective cover 8 needs to be rotated during adjustment, the protective cover 8 drives the second gear 10 to rotate through the rotating rod 9, the first gear 7 and the second gear 10 are in a mutually meshed state, the second gear 10 can drive the threaded rod 6 to rotate through the first gear 7 during rotation, and the threaded rod 6 is connected with the movable plate 4 through threads, so that the movable plate 4 can move along the threaded rod 6 when the threaded rod 6 rotates, when the movable plate 4 moves, the cutter bar 2 is driven to move together, so that the length of the cutter bar 2 extending out of the bottom of the hard shell 1 is controlled.

In conclusion, in the multi-head combined screwdriver for the precision instrument, the rotating rod 9 drives the second gear 10 to rotate by rotating the protective cover 8, the second gear 10 can rotate by being meshed with the first gear 7 when rotating, the threaded rod 6 can rotate, the movable plate 4 can move along the threaded rod 6 when the threaded rod 6 rotates, the movable plate 4 can drive the tool bar 2 to move together when moving, so that the length of the tool bar 2 extending out of the bottom of the hard shell 1 is controlled, the length of the tool bar 2 can be flexibly adjusted according to actual use requirements, the use convenience is greatly improved, the flexibility is strong, the use is very convenient, the problem that the combined screwdriver can only replace the screwdriver head 3 generally and the length of the tool bar 2 is fixed, the screwdriver cannot flexibly adapt to screwing and rotating work at different positions according to the actual use requirements when in use is solved, the use convenience is low, and the flexibility is poor, the use is very inconvenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bull combination formula screwdriver for precision instruments, including crust (1), cutter arbor (2) and batch head (3) are all established in crust (1) bottom, just cutter arbor (2) top extends to crust (1) inside, batch head (3) are established in cutter arbor (2) bottom, its characterized in that, fixed fly leaf (4) that is equipped with in cutter arbor (2) top, fly leaf (4) are established inside crust (1), fly leaf (4) top is run through and is equipped with threaded rod (6), fly leaf (4) pass through threaded connection with threaded rod (6), threaded rod (6) are established in cutter arbor (2) one side, threaded rod (6) are established and are extended to crust (1) top in crust (1) inside, threaded rod (6) top is fixed and is equipped with first gear (7), crust (1) top is equipped with protection casing (8), establish inside protection casing (8) first gear (7), the inside bottom mounting of protection casing (8) is equipped with bull stick (9), bull stick (9) outer end is fixed and is equipped with second gear (10), establish in second gear (10) one side first gear (7), first gear (7) and second gear (10) intermeshing.

2. The multi-head combined screwdriver for the precision instrument as claimed in claim 1, wherein the bottom end of the rotating rod (9) is movably connected with the top end of the hard shell (1) through a bearing, and the rotating rod (9) is arranged on one side of the threaded rod (6).

3. The multi-head combined screwdriver for the precision instrument according to claim 1, wherein a guide rod (5) is arranged inside the hard shell (1), the guide rod (5) penetrates through the movable plate (4), the movable plate (4) is slidably connected with the guide rod (5), the guide rod (5) is arranged on the other side of the screwdriver rod (2), and two ends of the guide rod (5) are fixedly connected with the top end and the bottom end inside the hard shell (1) respectively.

4. The multi-head combined screwdriver for the precision instrument as claimed in claim 3, wherein the guide rods (5) and the threaded rod (6) are symmetrically distributed around the central axis of the screwdriver rod (2), the bottom end of the threaded rod (6) is movably connected with the bottom end of the interior of the hard shell (1) through a bearing, and the outer end of the threaded rod (6) is movably connected with the top end of the interior of the hard shell (1) through a sealed bearing.

5. The multi-head combined screwdriver for the precision instrument as claimed in claim 1, wherein a handle sleeve (11) is fixedly sleeved at the outer end of the hard shell (1), the protective cover (8) is arranged at the top of the handle sleeve (11), and the screwdriver rod (2) penetrates through the handle sleeve (11).

6. The multi-head combined screwdriver for the precision instrument according to claim 1, wherein a plug (13) is fixedly arranged at the bottom end of the screwdriver rod (2), a magnet (14) is fixedly arranged at the bottom end of the plug (13), a groove (12) is formed in the top end of the screwdriver head (3), the plug (13) and the magnet (14) are both arranged in the groove (12), the groove (12) is matched with the plug (13), and the screwdriver head (3) is made of metal.

7. The multi-head combined screwdriver for the precision instrument according to claim 5, wherein the outer ends of the handle sleeve (11) and the protective cover (8) are both provided with anti-slip grooves.