CN101053945A

CN101053945A - Folding multifunction screw driver

Info

Publication number: CN101053945A
Application number: CN 200710097770
Authority: CN
Inventors: 荆通
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-30
Filing date: 2007-04-30
Publication date: 2007-10-17

Abstract

The present invention relates to a multifunctional collapsible screwdriver, which mainly comprises a connector (6) for tool bits (2) of different types, a tool bit (5) for sensing electricity, a handle (1), a metal switch (9), an insulation tabletting (4) and self tapping screws(11), (13), (14). While in use, the tool head is rotated forwardly, so that the back nicking buckled with the buckle (7) of the column, and the tool bits (2) will not be folded back caused by the unbalanced force. The tool bit (5), insulation tabletting (4), conductive sheet metal (3), the neon tube (10) for detecting electricity, and the conductive sheet metal (15, 9)are connected to detecting whether the testing voltage is present or not. The disadvantage of that the tool head of the present screwdriver, the tool head of which can be exchanged, is easy to be lost can be improved, and the fold back of the tool head caused by the unbalanced force can be avoided.

Description

Folding multifunction screw driver

Technical field

The invention belongs to the technical field of screwdriver, relate in particular to a kind of collapsible cutter head and can block automatically cutter head make cutter head can be when not using the firmly uneven multifunctional screw driver of fold back voluntarily.

Background technology

Screwdriver is electrician and mechanic's a common tool, in use often to use the screwdriver of different size and model, the screwdriver of earliest period is the single screwdriver of making by the different model specification, to carry the screwdriver of a large amount of different model specifications when so just causing work, bring inconvenience to use.Some screwdrivers in the market are to change different cutter heads according to the environment for use difference, just adopt handle and cutter head isolating construction, this screwdriver is the shortcoming of having avoided carrying a large amount of screwdrivers in use, so but since cutter head and handle of a knife be separate be easy to lose cutter head, and when changing, be easy to because operate miss drops to cutter head in the working environment, especially in dynamo-electric apparatus maintenance, the cutter head that falls down can make the components and parts short circuit on the circuit board cause enormous economic loss.In order to overcome this shortcoming, the someone has designed the screwdriver that cutter head and handle link together again, allocate the cutter head that will use by cutter heads different on the rotary handle in use, but this has occurred another defect again: cutter head is exerting oneself can to return handle of a knife by the original route fold back when irregular, this makes the use occasion of this screwdriver be restricted again, versatility reduces, this in addition screwdriver runs into the difficulty that is connected of multiple model specification driver bit again on making, increased vulnerability and production cost.

Summary of the invention

Technical problem to be solved by this invention is that a kind of multifunctional screw driver that can block the anti-fold back of cutter head when realizing folding and work is provided at above-mentioned prior art present situation, the cutter head connector of this multifunctional screw driver is the metallic object of cavity, and and buckle match and realize the fixedly purpose of cutter head, the function that also has test voltage to have or not in addition, it has simple and reasonable, uses convenient carrying.

It is a kind of folding multifunction screw driver that the present invention addresses the above problem the technical scheme that is adopted, it includes driver bit, driver bit connector, handle, it is characterized in that described cutter head connector is made up of two symmetric parts, two parts combine the cutter head of different model specification together, two parts of driver bit connector can be the joint close welding and by being connected as a single entity from the hole and the handle of merit screw on handle behind the cutter head of various model specifications of packing into, in the middle of the cutter head connector is a cavity, and the buckle that links to each other with spring can stretch into wherein.

The mechanism of the fixing used cutter head of above-mentioned cutter head connector is: in cutter head of the present invention rear end one cutting is arranged, can fasten by 180 ° of rotations and the cylinder buckle that will link to each other with spring in use.

Above-mentioned flexible restoring organ is: in the place that the cutter head connector is connected with handle one metal switch is arranged, metal switch contacts with the cylinder buckle by the cavity of cutter head connector, when promoting metal switch, can oppress the cylinder buckle, thereby the cutting that makes buckle withdraw from cutter head can discharge no cutter head it is return in the groove on the handle.

Above-mentioned driver bit, be to be divided in two parts, front end is the driver bit of corresponding different model specification, the rear end is a flat laminated structure with holes, metal rotating shaft is connected with screwdriver body by the cutter head of hole with the different model specification, equally, we can increase other instrument, to expand different functions.

It can be to realize by other special survey electric knife head that above-mentioned screwdriver is surveyed electric work, surveying the electric knife head front end is elongated plate, so that try at the different operating environment, survey electric knife head, conductive metal sheet, luminous neon bulb and human body and form the electric loop of examination jointly, its principle of trying electric principle and existing voltage test pencil is the same, just repeats no more here.

Compared with prior art, the invention has the advantages that: the related driver bit connector of this invention is made up of the band cutter slot part of two symmetries, two parts link to each other the cutter head of various model specifications by metal rotating shaft, two parts behind the different model specification cutter head of packing into the bottom again by being fixed into as a whole from merit screw and handle, thereby the advantage that cutter head is not lost in realization, cylinder buckle in the cutter head connector cavity blocks the jail by the effect of the spring force of its rear end to cutter head in addition, having reached cutter head is difficult for loosening, exert oneself when preventing from the to use phenomenon of uneven cutter head fold back reaches best result of use.

Description of drawings

Fig. 1 shows schematic perspective view for the off working state of the embodiment of the invention;

Fig. 2 is the work schematic perspective view (launching under the state of cutter head) of the embodiment of the invention;

Fig. 3 is that the A-A of Fig. 1 is to cutaway view (under the whole off working state)

Fig. 4 is that the B-B of Fig. 1 is to cutaway view (under the whole off working state)

Fig. 5 for the A-A of embodiment of the invention Fig. 1 to cutaway view (cutter head does not block);

Fig. 6 for the A-A of embodiment of the invention Fig. 1 to cutaway view (cutter head is stuck);

Fig. 7 is the three-view diagram of embodiment of the invention cutter head connector;

Fig. 8 is the three-view diagram of embodiment of the invention handle;

Fig. 9 is the three-view diagram of embodiment of the invention cylinder buckle;

Figure 10 is the three-view diagram of embodiment of the invention metal switch;

Figure 11 is the three-view diagram of embodiment of the invention metal rotating shaft;

Figure 12 is the three-view diagram of embodiment of the invention cutter head structure;

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

A kind of folding multi-functional screwdriver shown in Fig. 1～4, its include different model the connector (6) of cutter head (2), survey electric knife head (5), handle (1), metal switch (9), insulation compressing tablet (4) and different model from merit screw (11), (13), (14), the rear end of the cutter head of various model specifications (2) can be fixed in the groove on (6) by two semicircular metal rotating shaft (12), in addition, survey electric knife head (5) on the handle can be done 180 ° around screw (13) and be rotated in the forward, conductive metal sheet (3) below the bottom of rotation back (5) and the insulation compressing tablet (4) joins, (3) and survey electric neon bulb (10) and contact, the other end of neon bulb (10) links to each other with the switch (9) of metal quality by the conductive metal sheet (15) of band flexible circuit conductor, thereby carry out having or not of test voltage, its principle of surveying electric principle and existing voltage test pencil is the same, can receive on the handle in the corresponding with it groove by 180 ° of rotations of negative sense in time spent (5) not;

As Fig. 5, a kind of folding multifunction screw driver shown in 6, during work, the cutter head that can use (2) starts by the groove on the handle, cutter head (2) is rotated in the forward the cutting and the cylinder buckle (7) that make (2) rear end for (12) 180 ° by metal rotating shaft and interlocks, the spring (8) of cylinder buckle (7) rear end can make cylinder buckle (7) reset after by the cutting of (2) rear end compressing, (2) are blocked, like this, just can make (2) at work can be in the groove that turns back because of exerting oneself irregular, when wanting tool changing, can be by metal quality switch (9) be promoted downwards, (9) touch in the side edge of inner and (7), promoting (9) can (7) oppress, thereby makes the cutting of cutter head (2) rear end not ° got back in the groove of the original correspondence on the handle by stopping by the negative sense Rotate 180 of (7).

Fig. 7～12, it is respectively the three-view diagram of cutter head connector, handle, cylinder buckle, metal switch, metal rotating shaft, cutter head, wherein the diameter of groove width on the handle and cutter head matches and is convenient to clamp obsolete cutter head, cylinder buckle (7) but afterbody has the groove of inserting spring (8), the upper surface of metal switch is coarse to increase frictional force.

Claims

1. folding multifunction screw driver, it includes connector (6), the handle of belt blade head groove (1), the cutter head of different model specification (2), outer surface has the survey electric knife head (5) of insulating barrier, metal switch (9), and cutter head (2) links to each other with cutter head connector (6) by metal rotating shaft (12), connector (6) is fixed as one by the handle (1) of screw (14) with trough of belt, surveys electric knife head (5) and is fixed as one by screw (13) and handle (1).

2. screwdriver according to claim 1, it is characterized in that described connector (6) is made up of two parts symmetrical so that the metal rotating shaft of packing into (12), and the groove of the cutter head (2) that is used for inserting various models arranged on connector, the hole that is connected by rotating shaft with (2) is arranged on the cell wall, and jointly whole cutter head is placed when not using with the groove on the handle (1).

3. screwdriver according to claim 1, it is characterized in that described anti-lost header structure is made up of the cutter head (2) of metal rotating shaft (12), connector (6), different model, all porose and can fix by metal rotating shaft (12) on the cell wall of cutter head (2) rear end and cutter head connector (6), cutter head (2) can be done 180 ° of rotations of positive negative sense by metal rotating shaft (12) in the groove of connector (6).

4. screwdriver according to claim 1, it is characterized in that the described cutter head structure that blocks is made up of the spring (8) and the metal switch (9) of cylinder buckle (7) and cylinder buckle (7) afterbody, described metal switch (9) can oppress (7) and then compression spring (8) when promoting backward thereby the negative sense Rotate 180 that stops that makes cutter head (2) break away from cylinder buckle (7) ° is got back in the corresponding groove.

5. according to claim 1,2,3 described screwdrivers, it is characterized in that, the inside of connector (6) is cavity, so that cylinder buckle (7) can be blocked cutter head (2) by the elastic force of spring (8), make cutter head (2) radially become as a whole during work, and can cause spring (8) thereby shrink stopping of cutter head (2) disengaging cylinder buckle (7) reset in the corresponding groove by metal switch (9) compressing cylinder buckle (7) with cutter head connector (6) and handle (1).

6. screwdriver according to claim 1, it is characterized in that described driver bit, be to be divided in two parts, front end is the driver bit of corresponding different model specification, the rear end is the flat laminated structure that cutting is arranged with holes, and metal rotating shaft (12) is fixed as one with cutter head connector (6) by the cutter head (2) of hole with the different model specification.

7. screwdriver according to claim 1, it is characterized in that described survey electric knife head (5) is that the insulating barrier center is arranged is the special cutter head of conducting metal to outer surface, its front end is that elongated plate is so that the electrode under the measurement different operating environment, the rear end is porose can do 180 ° of rotations of positive negative sense around screw (13), the afterbody of surveying electric knife head (5) after 180 ° of rotations of forward contacts with conductive metal sheet (3), one end in contact of conductive metal sheet (3) and neon bulb (10), one end in contact of the sheet metal (15) of the other end of neon bulb (10) and band flexible circuit conductor, the other end of the sheet metal (15) of band flexible circuit conductor contacts (5) with metal switch (9), (3), (10), (15), (9) form the loop that survey voltage has or not with human body.

8. screwdriver according to claim 2, it is characterized in that, after groove on the connector (6) interlocks in 180 ° of rotations of cutter head (2) forward and by cylinder buckle (7), one lateral edges connected body (6) of cutter head (2) rear end is gone up with (2) corresponding groove and is blocked, but opposite side edge connected body (6) is gone up groove on the other side and is blocked, thereby increases the cutter head turning moment.

9. screwdriver according to claim 2 is characterized in that, the groove on the handle can make screwdriver longitudinally submerge half, and second half protrudes handle cylinder, thus the frictional force when increasing the handle rotation.

10. the screwdriver of stating according to claim 7 is characterized in that, the sheet metal (15) of conductive metal sheet (3), neon bulb (10), band flexible circuit conductor, all is insulated compressing tablet (4) and is pressed in the groove of handle (1) from merit screw (11) by two.