CN207189540U - A kind of screwdriver - Google Patents

Abstract

A kind of screwdriver, including handle body, it is characterised in that：The cavity axially penetrated through is provided with the handle body, handle core and rotary switch are provided with cavity, wherein handle core fixes the leading portion for being located at cavity in handle body, the pilot hole of the rear end insertion for screwdriver is axially arranged with handle core, rotary switch is arranged on the back segment of cavity, the tail end of screwdriver is releasably connected through handle core with rotary switch, the afterbody of handle body, which is rotationally provided with, to be connected and is used to driving rotary switch to rotate with the rear end of rotary switch so as to realize tail-hood that screwdriver and rotary switch are departed from, tail-hood carries the torsion spring of reset trend, the utility model is rational in infrastructure, screwdriver is not only connected firmly with handle body, and dismounting is quick and convenient, when needing dismounting, as long as rotate tail-hood, with regard to screwdriver and handle body quick separating can be made, with stronger practical performance.

Description

A kind of screwdriver

Technical field

Driver technology field is the utility model is related to, more particularly to a kind of screw driver handle.

Background technology

Screwdriver is as a kind of conventional handware, and for slack adjuster, existing screwdriver generally includes handle, knife bar And cutter head, user drive knife bar and cutter head to rotate by rotational handle, so as to which cutter head drives screw to rotate to carry out screw It is elastic.It is usually fixing assembling between screwdriver and handle common at present, it is impossible to dismantle, just compare when so changing screwdriver It is cumbersome, when screw head is different, it is necessary to much that different screwdrivers, and cost inconvenient using carrying is high. Therefore, also there are many removable lining handles in the market, such as magnetic handle, but have a disadvantage in that in the presence of with one section when Between after easily de- magnetic loosely, cutter head is too short, and use is too laborious；Cutter head handle with ear, have a disadvantage in that when being fixed with nut Nutting is pretty troublesome, and head, which is broken, to be typically eliminated.

Through looking into, existing Patent No. CN200910051116.7 Chinese patent《A kind of screw driver handle》, including shank body, Knife bar and the retainer component for fixing cutter head, described knife bar are fixed in shank body, and described retainer component is on knife bar.This The handle of kind of screwdriver does not change, and retainer component is set on knife bar, can change different cutter heads as needed, but this knot The stability of structure is not ideal enough, and knife bar is easily damaged, and influences the normal use of screwdriver, and knife bar can not dismantle so that volume Greatly, it is unfavorable for packaging storage and carries with.

Further, such as Patent No. CN201420500344.4 Chinese patent《A kind of screw driver handle》, including handle sheet Body, the handle body border are provided with storage tank being adapted with small screw driver, can housing small screw driver, the handle The afterbody of body connects an end cap that is rotatable, at least can partly covering the storage tank notch, has one on the end cap Breach, the storage tank small screw driver can be put into or be taken out by the breach.This screw driver handle attend class place it is multiple Small screw driver, be easy to carry replacing, and its knife bar is also what is be fixedly connected with handle, it is impossible to shirks, as patent above The problem of knife bar is easily damaged be present, and knife bar can not dismantle so that volume is big, is unfavorable for packaging storage and carries with.

The content of the invention

Technical problem to be solved in the utility model is provided a kind of rational in infrastructure, golden for the above-mentioned state of the art Category knife bar is connected firmly and the screwdriver of convenient disassembly.

Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of screwdriver, including handle body, its It is characterised by：The cavity axially penetrated through is provided with the handle body, handle core and rotary switch, wherein handle core are provided with cavity It is fixed to be axially arranged with the pilot hole inserted for the rear end of screwdriver, rotation in the leading portion of cavity, handle core in handle body The back segment for closing and being arranged on cavity is turned on, the tail end of screwdriver is releasably connected through handle core with rotary switch, handle body Afterbody be rotationally provided be connected with the rear end of rotary switch and be used to driving rotary switch to rotate so as to realize screwdriver and The tail-hood that rotary switch is departed from, tail-hood carry the torsion spring of reset trend.

Further, the rotary switch is cylindrical, and the front portion of rotary switch is the connection being connected with the rear end of screwdriver Portion, the cavity back segment of handle body are shaped to the shoulder hole being engaged with rotary switch, and rotary switch is plugged in shoulder hole, rotation The rear end of switch is connected with tail-hood, and the front end of rotary switch is spacing by handle core.

Further, the pilot hole of the corresponding handle core, the rear end of screwdriver form corresponding bar portion, and the end of bar portion is set There is the connection projection being connected with the connecting portion of rotary switch, it is L-shaped neck to connect the outside of projection provided with main body, and bottom has The inclined-plane of guiding, the connecting portion inwall of rotary switch are provided with the fixture block for coordinating clamping with L-shaped neck, and fixture block upper end also is provided with card Block inclined-plane, after in screwdriver insertion handle body in place, pass through the inclined-plane of the guiding of screwdriver bar portion and the fixture block inclined-plane of rotary switch Contact, makes it rotate to an angle, so that it may fixture block is caught in L-shaped neck and locks screwdriver and rotary switch.

Further, the L-shaped neck is two, is symmetrically arranged at the left and right sides of connection projection, and fixture block is corresponding Two pieces, on the inwall for the connecting portion for being symmetrically arranged at rotary switch, be additionally provided with a spring in connecting portion, the one of spring End is fixed on the bottom of connecting portion, and the other end is supported on the afterbody of screwdriver, screwdriver is had the trend outwards ejected all the time.

Further, the tail-hood is in knob shape, is arranged with what is inserted for tail-hood pairing at the cavity open rearward end of handle body Annular groove, tail-hood are rotatably arranged in annular groove, are provided with what is plugged with the rear end of rotary switch in the middle part of the inner end of tail-hood Projection, the rear end both sides of rotary switch are axially arranged with fluting, and the projection both sides of tail-hood form corresponding projection, the middle part of fluting Screens point is arranged with, projection is provided with corresponding salient point, and tail-hood is connected by projection with rotary switch, and passes through rotational band Dynamic rotary switch rotates.

Further, the limited block that rotary stopper is carried out to tail-hood is provided with the annular groove, the outer face of tail-hood is provided with The three-dimensional mark of rotation arrows.

Further, the inboard of the cavity rear end annular groove of the handle body is provided with a ring-shaped step, is set on ring-shaped step Torsion spring is put, torsion spring is set in the rear end outer sheath of rotary switch, and one end of torsion spring is connected with ring-shaped step, the other end and rotation Switch is connected, and rotary switch is had the trend with screwdriver phase clamping all the time.

Further, the handle core is metalwork or engineering plastic materials and parts, and handle body is formed by quadric injection mould, in hand The cavity leading portion of shank body is provided with the stepped hole set for handle core, and positioning hole, handle are symmetrically offered in the lateral surface of handle core Corresponding perforate is provided with, is plugged on by fixed plug through perforate in positioning hole, rotary switch is arranged in handle body, handle It is by quadric injection mould that handle core and handle body shape is integral after core insertion.

Finally, the screwdriver is the single piece formed by metal knife bar by quadric injection mould, metal knife bar by screwdriver with Handle body is connected.

Compared with prior art, the utility model has the advantage of：Screwdriver and the single piece that handle body is quadric injection mould, Structure is very firm, and handle core and rotary switch are set in handle body, and handle body afterbody sets tail-hood, as long as in use, rotation Tail-hood is with regard to that can drive rotary switch to rotate, so as to realize the locking of screwdriver and rotary switch or disengaging；Bullet is set in rotary switch Spring, as long as rotation tail-hood, screwdriver depart from rotary switch, screwdriver will quickly be ejected by spring, is conveniently replaceable；Rotation is opened Close, torsion spring is set outside tail-hood, as long as screwdriver insertion is in place, will be acted on by torsion spring and connect and fix rotary switch and screwdriver. The utility model is rational in infrastructure, and screwdriver is not only connected firmly with handle body, and dismantle it is quick and convenient, it is necessary to when dismantling, as long as Rotate tail-hood, with regard to that can make screwdriver and handle body quick separating, not only fast demountable screwdriver is conveniently replaceable, and beneficial to pack and Storage, has stronger practical performance, test proves that its knife bar locking strength can reach 500N, meeting European standard will Ask.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is sectional view of the present utility model；

Fig. 3 is Fig. 1 exploded view；

Fig. 4 is Fig. 3 further exploded view；

Fig. 5 is Fig. 4 further exploded view.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing embodiment.

As shown in Fig. 1~5, a kind of screwdriver, including handle body 2, the handle core 4, the rotary switch that are arranged in handle body 2 5 and the tail-hood 3 of the afterbody of handle body 2 is arranged on, the cavity axially penetrated through, handle core 4 and rotary switch 5 are provided with handle body 2 It is arranged in cavity, wherein handle core 4 is metalwork or engineering plastic materials and parts, and rotary switch 5 is working of plastics, and handle core 4 is fixed It is located at the leading portion of cavity in handle body 2, rotary switch 5 is arranged on the back segment of cavity, makes handle core 4 to rotary switch 5 Axial limiting effect is done, is releasably connected with rotary switch 5 through handle core 4 for connecting the screwdriver 1 of metal knife bar its tail end Fixation is connect, the rear end of rotary switch 5 is connected with tail-hood 3, and tail-hood 3 is rotatably located at the afterbody of handle body 2, passes through the rotation of tail-hood 3 Turn drive rotary switch 5 to rotate so as to realize that screwdriver 1 is locked or departed from rotary switch 5；Handle body 2 is to pass through secondary injection Modeling is formed, and the stepped hole set for handle core 4 is provided with the cavity leading portion of handle body, is symmetrically opened up in the lateral surface of handle core 4 There is positioning hole 42, handle is provided with corresponding perforate, is plugged in positioning hole 42 through perforate by fixed plug 8, connects to strengthen Firmness is connect, by quadric injection mould by handle core 4 and handle body 2 after rotary switch 5 is arranged in handle body, handle core 4 is embedded in It is integral to connect shape；The pilot hole 41 of the rectangle inserted provided with the rear end for screwdriver 1 is axially penetrated through in handle core 4, screwdriver 1 Rear end forms corresponding rectangular shaft 11, and the length of rectangular shaft 11 is consistent with the length of handle core 4, and rotary switch 5 is cylindrical, The front portion of rotary switch 5 is the connecting portion 51 that the expanding rear end with screwdriver 1 is connected, and the cavity back segment of handle body 2 is shaped to The shoulder hole being engaged with rotary switch 5, rotary switch 5 are plugged in shoulder hole, and the rear end of rotary switch 5 is connected with tail-hood 3 Connect, the front end of rotary switch 5 is spacing by handle core 4, and the company with rotary switch 5 is provided with the end of the rectangular shaft 11 of screwdriver 1 The connection projection 12 that socket part 51 is connected, it is L-shaped neck 121 that the outside of connection projection 12, which symmetrically offers two main bodys, rotation The fixture block 54 for being convexly equipped with the inwall of connecting portion 51 for close 5 and coordinating clamping with L-shaped neck 121 is turned on, when screwdriver 1 inserts handle body 2 Inside in place after, appropriate angle is rotated by rotary switch 5, so that it may make fixture block 54 be caught in L-shaped neck 121 by screwdriver 1 with rotation The locking of switch 5, L-shaped neck 121 is caught in for the ease of fixture block 54, and what aperture gradually tapered up in the end set of L-shaped neck 121 leads To inclined-plane 121a, fixture block 54 carries fixture block inclined-plane, after in screwdriver insertion handle body in place, passes through the oblique of the guiding of screwdriver bar portion Face and the fixture block contact of incline plane of rotary switch, make it rotate to an angle, so that it may fixture block is caught in screwdriver and rotation in L-shaped neck Turn on to shut and determine, a spring 6 is additionally provided with connecting portion 51, one end of spring 6 is fixed on the bottom of connecting portion 51, other end branch Support makes screwdriver 1 have the trend outwards ejected all the time on the end face of connection projection 12 of screwdriver 1；Tail-hood 3 is in knob shape, handle The annular groove inserted for the pairing of tail-hood 3 is arranged with the cavity open rearward end of body 2, is provided with annular groove and tail-hood 3 is rotated Spacing limited block, tail-hood 3 can be arranged in annular groove rotation-limited, be provided with and rotary switch 5 in the middle part of the inner end of tail-hood 3 The projection 31 that plugs of rear end, the rear end both sides of rotary switch 5 are axially arranged with fluting 52, the both sides of projection 31 shaping of tail-hood 3 There is corresponding projection 32,52 middle part of slotting is arranged with screens point 53, and projection 32 is provided with corresponding salient point 33, such tail-hood 3 Just it is connected with the cooperation of the fluting 52, screens point 53 of rotary switch 5 by the projection 32 on projection 32, salient point 33, and passes through The rotation of tail-hood 3 drives rotary switch 5 to rotate, in addition, being provided with an annular table in the inboard of the cavity rear end annular groove of handle body 2 Rank, a torsion spring 7 is provided with ring-shaped step, torsion spring 7 is set on the outside of the rear end of rotary switch 5, one end of torsion spring 7 and annular table Rank is connected, and the other end is connected with rotary switch 5, rotary switch 5 is had the trend with the phase clamping of screwdriver 1 all the time, in order to grasp Facilitate, the three-dimensional mark of rotation arrows is provided with the outer face of tail-hood 3；In addition, screwdriver 1 is to pass through secondary injection by metal knife bar The single piece formed is moulded, not only structure is very firm, and knife bar flame-resistant insulation, and metal knife bar passes through screwdriver and the phase of handle body 2 Connection.

During installation, spring 6 is loaded in rotary switch 5, rotary switch 5 is aligned into pusher enters in the cavity of handle, by hand Handle core 4 loads in handle, and fixed plug 8 is filled in and fastens handle core 4, and carrying out quadric injection mould to mounted handle turns into handle Body 2, then torsion spring 7 is loaded from the afterbody of handle body 2, tail-hood 3 is directed at rear end insertion and the rotary switch 5 of rotary switch 5 It is connected, finally by the good handle body 2 of the plugging in fitting of screwdriver 1.

When needing to change screwdriver 1 or shirk screwdriver 1, as long as rotating certain angle according to the rotation arrows mark of tail-hood 3 Degree so that the fixture block 54 in rotary switch 5 departs from from the screens of the L-shaped neck 121 on the connection projection 12 of the rear end of screwdriver 1, Screwdriver 1 outwards ejects in the presence of spring 6, can easily remove；When needing to load onto screwdriver 1, as long as by screwdriver 1 and handle core Inserted after 4 alignments, rotary switch 5 can rotate appropriate angle in the presence of torsion spring 7, fixture block is caught in the L-shaped neck of screwdriver 1 In 121, screwdriver 1 is locked.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change Enter and retouch and also should be regarded as the scope of protection of the utility model.

Claims (9)

1. a kind of screwdriver, including handle body, it is characterised in that：The cavity axially penetrated through is provided with the handle body, in cavity Provided with handle core and rotary switch, wherein handle core is fixed in the interior leading portion for being located at cavity of handle body, handle core axially The pilot hole inserted provided with the rear end for screwdriver, rotary switch are arranged on the back segment of cavity, the tail end of screwdriver through handle core with Rotary switch is releasably connected, and the afterbody of handle body, which is rotationally provided with, to be connected and be used for the rear end of rotary switch Rotary switch is driven to rotate so as to realize tail-hood that screwdriver and rotary switch are departed from, tail-hood carries the torsion spring of reset trend.

2. screwdriver according to claim 1, it is characterised in that：The rotary switch is cylindrical, before rotary switch Portion is the connecting portion being connected with the rear end of screwdriver, and the cavity back segment of handle body is shaped to the ladder being engaged with rotary switch Hole, rotary switch are plugged in shoulder hole, and the rear end of rotary switch is connected with tail-hood, and the front end of rotary switch passes through handle core It is spacing.

3. screwdriver according to claim 2, it is characterised in that：The pilot hole of the corresponding handle core, the rear end of screwdriver Corresponding bar portion is formed, the end of bar portion is provided with the connection projection being connected with the connecting portion of rotary switch, connects projection Outside provided with main body be L-shaped neck, the inclined-plane of guiding is arranged at bottom, and the connecting portion inwall of rotary switch is provided with and L-shaped neck Coordinate the fixture block of clamping, fixture block upper end also is provided with fixture block inclined-plane, after in screwdriver insertion handle body in place, passes through screwdriver bar portion The inclined-plane of guiding and the fixture block contact of incline plane of rotary switch, make it rotate to an angle, so that it may which fixture block is caught in L-shaped neck will Screwdriver locks with rotary switch.

4. screwdriver according to claim 3, it is characterised in that：The L-shaped neck is two, the company of being symmetrically arranged at The left and right sides of projection is connect, fixture block is corresponding two pieces, on the inwall for the connecting portion for being symmetrically arranged at rotary switch, even A spring is additionally provided with socket part, one end of spring is fixed on the bottom of connecting portion, and the other end is supported on the afterbody of screwdriver, makes screwdriver With the trend outwards ejected all the time.

5. screwdriver according to claim 2, it is characterised in that：The tail-hood is in knob shape, the cavity rear end of handle body Opening is arranged with the annular groove inserted for tail-hood pairing, and tail-hood is rotatably arranged in annular groove, in the middle part of the inner end of tail-hood The projection plugged provided with the rear end with rotary switch, the rear end both sides of rotary switch are axially arranged with fluting, the projection two of tail-hood Side forms corresponding projection, is arranged with screens point in the middle part of fluting, and projection is provided with corresponding salient point, tail-hood by projection with It is connected with rotary switch, and drives rotary switch to rotate by rotating.

6. screwdriver according to claim 5, it is characterised in that：It is provided with the annular groove and rotary stopper is carried out to tail-hood Limited block, the outer face of tail-hood is provided with the three-dimensional mark of rotation arrows.

7. screwdriver according to claim 5, it is characterised in that：The inboard of the cavity rear end annular groove of the handle body is set Have a ring-shaped step, torsion spring be set on ring-shaped step, torsion spring is set in the rear end outer sheath of rotary switch, one end of torsion spring with Ring-shaped step is connected, and the other end is connected with rotary switch, rotary switch is had the trend with screwdriver phase clamping all the time.

8. according to the screwdriver described in claim 1 to 7 any claim, it is characterised in that：The handle core is metalwork Or engineering plastic materials and parts, handle body are formed by quadric injection mould, it is provided with what is set for handle core in the cavity leading portion of handle body Stepped hole, positioning hole is symmetrically offered in the lateral surface of handle core, handle is provided with corresponding perforate, by fixed plug through opening Hole is plugged in positioning hole, rotary switch is arranged in handle body, after handle core insertion by quadric injection mould by handle core and hand Shank body shape is integral.

9. according to the screwdriver described in claim 1 to 7 any claim, it is characterised in that：The screwdriver is by steel edge The single piece that bar is formed by quadric injection mould, metal knife bar are connected by screwdriver with handle body.