CN205765854U - A kind of service-strong multifunctional screw driver - Google Patents

Abstract

This utility model provides a kind of service-strong multifunctional screw driver, including the pull end being slidably socketed and rear lug, it is fixed in the push rod in described rear lug, it is rotationally connected with the runner on described pull end, and it is positioned over the driver bit of different model in described runner, described push rod can slide by described pull end is relative with described rear lug, sequentially passes through described runner, the described driver bit of different model is pushed to operating position；It is characterized in that: the first hexagon ring is offered in described pull end front end, described pull end rear end offers the first circular hole, described runner front end offers the second hexagon ring connecting described first hexagon ring, described runner rear end offers the second circular hole connecting described first circular hole, described driver bit includes cutter head and hexagonal cylinder, and described push rod can sequentially pass through described first circular hole, described second circular hole, described second hexagon ring and described first hexagon ring.Having rational in infrastructure, use reliable, driver bit switches advantage flexibly.

Description

A kind of service-strong multifunctional screw driver

Technical field

This utility model relates to driver technology field, is specifically related to multifunctional screw driver.

Background technology

Screwdriver is used to twist screw to compel its a kind of specific purpose tool in place, generally has a thin sphenocephaly, can Insert in the line of rabbet joint of screw cap or recess, but the cause not of uniform size in the line of rabbet joint of screw cap or recess, and so needs make Screwdriver by different model or the multi-purpose screwdriver with Multiple Type driver bit, the most common multiple cutter head Screwdriver the most, but major part uses single handle and other aids to carry driver bit, and every time Change cutter head and need artificial manual replacing, cumbersome, thus also reduce work efficiency.For this, also someone devises one Plant the multifunctional screw driver of similar revolver, by placing the driver bit of different model in runner, then through runner Rotation switches over.But the multifunctional screw driver of this structure is to separate due to driver bit and screwdriver handle, using spiral shell It is susceptible to driver bit because the most excessive during silk cutter, causes driver bit to depart from from screwdriver handle, and switch screw It can also happen that clamping stagnation during cutter head, cause use inconvenience.

Therefore, how improving existing multifunctional screw driver is that urgently to be resolved hurrily one of those skilled in the art asks Topic.

Utility model content

Main purpose of the present utility model is to provide a kind of rational in infrastructure, uses reliable, and driver bit switches flexibly Multifunctional screw driver.

For reaching object above, the technical solution adopted in the utility model is: a kind of service-strong multifunctional screw driver, Including the pull end being slidably socketed and rear lug, it is fixed in the push rod in described rear lug, is rotationally connected with the runner on described pull end, And it being positioned over the driver bit of different model in described runner, described push rod can be relative with described rear lug by described pull end Slide, sequentially pass through described runner, the described driver bit of different model is pushed to operating position；It is characterized in that: institute Stating pull end front end and offer the first hexagon ring, described pull end rear end offers the first circular hole, and described runner front end offers connection institute Stating the second hexagon ring of the first hexagon ring, described runner rear end offers the second circular hole connecting described first circular hole, described spiral shell Silk cutter head includes cutter head and hexagonal cylinder, described push rod can sequentially pass through described first circular hole, described second circular hole, described the Two hexagon rings and described first hexagon ring；Described first hexagon ring is identical with the cross sectional shape of described second hexagon ring, and described One circular hole is identical with the cross sectional shape of described second circular hole, described first hexagon ring and the inscribed circle diameter of described second hexagon ring Not less than described first circular hole and the internal diameter of described second circular hole, described first hexagon ring and described second hexagon ring at same axle Being completely superposed both during line, described hexagonal cylinder overlaps with the inwall of described first hexagon ring and described second hexagon ring, it is achieved Described driver bit can only axially carry out straight-line displacement along described first hexagon ring and described second hexagon ring.By above-mentioned knot Structure, needs switching driver bit when.Driver bit can be promoted by push rod through the first circular hole and the second circular hole Enter the first hexagon ring from the second hexagon ring, until it reaches operating position, can not occur to turn at the first hexagon ring internal thread cutter head Dynamic, use relatively reliable, driver bit switching is the most very convenient.

As preferably, described push rod overlaps with the inwall of described first circular hole and described second circular hole.This structure makes pull end More firm with rear lug connection, will not shake, use relatively reliable.

Compared with prior art, the utility model has the advantage of: can be by push rod through the first circular hole and the second circle Hole, promotes driver bit to enter the first hexagon ring from the second hexagon ring, until it reaches operating position, spiral shell in the first hexagon ring Silk cutter head can not rotate, and uses relatively reliable, and driver bit switching is the most very convenient.

Accompanying drawing explanation

Perspective view when Fig. 1 is to use according to a preferred embodiment of the present utility model；

Fig. 2 is according to perspective view during preferred embodiment switching driver bit of the present utility model；

Fig. 3 is according to half sectional view during preferred embodiment Fig. 1 state of the present utility model；

Fig. 4 is according to half sectional view during preferred embodiment Fig. 2 state of the present utility model；

Fig. 5 is the explosive view according to a preferred embodiment of the present utility model；

Fig. 6 is according to the perspective view of pull end in a preferred embodiment of the present utility model；

Fig. 7 is according to the interior views of pull end in a preferred embodiment of the present utility model；

Fig. 8 is according to the interior views of runner in a preferred embodiment of the present utility model；

Fig. 9 is according to the perspective view of driver bit in a preferred embodiment of the present utility model；

Figure 10 is in switching according to pull end, push rod, runner and driver bit in a preferred embodiment of the present utility model Interior views under state.

Detailed description of the invention

Hereinafter describe and be used for disclosing this utility model so that those skilled in the art are capable of this utility model.Hereinafter retouch Preferred embodiment in stating is only used as citing, it may occur to persons skilled in the art that other obvious modification.

As shown in Fig. 1～10, an embodiment of the present utility model includes pull end 1 and the rear lug 2 being slidably socketed, affixed Push rod 3 in rear lug 2, the runner 4 being rotationally connected with on pull end 1, and it is positioned over the spiral shell of different model in runner 4 Silk cutter head 5.Its operation principle is as follows: push rod 3 can slide by pull end 1 is relative with rear lug 2, sequentially passes through runner 4, The driver bit 5 of different model is pushed to operating position.

It is critical that, before pull end, 1 end offers the first hexagon ring 11, and pull end 1 rear end offers the first circular hole 12, Runner 4 front end offers the second hexagon ring 41 of connection the first hexagon ring 11, and runner 4 rear end offers connection the first circular hole Second circular hole 42 of 12, driver bit 5 includes cutter head 52 and hexagonal cylinder 51, and push rod 3 can sequentially pass through the first circular hole 12, the second circular hole the 42, second hexagon ring 41 and the first hexagon ring 11；Cutting of first hexagon ring 11 and the second hexagon ring 41 Face shape is identical, and the first circular hole 12 is identical with the cross sectional shape of the second circular hole 42, the first hexagon ring 11 and the second hexagon ring The inscribed circle diameter of 41 is not less than the first circular hole 12 and internal diameter of the second circular hole 42, the first hexagon ring 11 and the second hexagon ring 41 are completely superposed both when same axis, hexagonal cylinder 52 and the first hexagon ring 11 and inwall weight of the second hexagon ring 41 Close, it is achieved driver bit 5 can only axially carry out straight-line displacement along the first hexagon ring 11 and the second hexagon ring 41.Push rod 3 Overlap with the inwall of the first circular hole 12 and the second circular hole 42.

Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description Simply principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model also has respectively Planting changes and improvements, these changes and improvements both fall within the range of claimed this utility model.This utility model requirement Protection domain defined by appending claims and equivalent thereof.

Claims (2)

1. a service-strong multifunctional screw driver, including the pull end being slidably socketed and rear lug, is fixed in described rear lug Push rod, be rotationally connected with the runner on described pull end, and be positioned over the driver bit of different model, institute in described runner State push rod to slide by described pull end is relative with described rear lug, sequentially pass through described runner, by the described spiral shell of different model Silk cutter head is pushed to operating position；It is characterized in that: the first hexagon ring is offered in described pull end front end, described pull end rear end is offered Having the first circular hole, described runner front end to offer the second hexagon ring connecting described first hexagon ring, described runner rear end is offered Having the second circular hole connecting described first circular hole, described driver bit includes cutter head and hexagonal cylinder, and described push rod can be worn successively Cross described first circular hole, described second circular hole, described second hexagon ring and described first hexagon ring；Described first hexagon ring and The cross sectional shape of described second hexagon ring is identical, and described first circular hole is identical with the cross sectional shape of described second circular hole, and described The inscribed circle diameter of one hexagon ring and described second hexagon ring is not less than described first circular hole and the internal diameter of described second circular hole, institute State the first hexagon ring and described second hexagon ring is completely superposed when same axis, described hexagonal cylinder and the described 1st The inwall of corner apertures and described second hexagon ring overlaps, it is achieved described driver bit can only be along described first hexagon ring and described second Hexagon ring axially carry out straight-line displacement.

Service-strong multifunctional screw driver the most according to claim 1, it is characterised in that: described push rod is with described The inwall of the first circular hole and described second circular hole overlaps.