CN202921984U

CN202921984U - Single buckle inner connection hand-tight drill clamping head

Info

Publication number: CN202921984U
Application number: CN 201220384787
Authority: CN
Inventors: 陈肇和
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-27
Filing date: 2012-07-27
Publication date: 2013-05-08
Anticipated expiration: 2022-07-27

Abstract

The utility model relates to a single buckle inner connection hand-tight drill clamping head. The single buckle inner connection hand-tight drill clamping head comprises a clamping head body assembled in a front shell body, inner cone nuts, clamping feet, the front shell body and a back shell body. A locking plate is assembled in the back shell body, a square hole in the center of the locking plate is sleeved on the external diameter of the back portion of the clamping head body, and the inner side of the lower end of the square hole is movably assembled in a through hole below the back of the clamping head body in an embedded mode with part exposed on the wall of the through hole. The exposed part can be embedded in a groove of a gun-drill main shaft when the drill clamping head is installed. A spring is sleeved in the upper end of the square hole, so the locking plate is enabled to reset and move in the through hole. Part of the upper end of the locking plate is exposed on the surface of the back shell body, and the exposed part is a button used for being pressed by a hand. A protruding key is arranged at the inner end of the inner hole in the back portion of the clamping head body, and the protruding key can be buckled with a cross-shaped notch in the gun-drill main shaft and driven by the gun-drill main shaft. Therefore, the single buckle inner connection hand-tight drill clamping head is reasonable in structure, convenient to assemble and disassemble and convenient to use.

Description

Connect hand fastening drill clutch in single button

Technical field

The utility model relates to the drill chuck on hand-held drill gun, is suitable for the standby accessory combining of normal needs transposing convenient disassembly

Background technology

Connect hand fastening drill clutch as one of a plurality of annexes of drill gun in single button, the replacement annex that in use often needs transposing to use, going to once has the drill chuck of multiple different structure product, is threaded as useful, steel ball sealed etc., because connecting trouble, structure is more complicated, and cost of manufacture is higher, also done improvement, but also exist the problem on manufacture craft, especially technological equipment is general, and brings the high impact of production cost.

Summary of the invention

Technical problem to be solved in the utility model is for above-mentioned prior art present situation, according to the characteristics of existing process equipment, member is wherein done some improvement in putting into practice manufacture process, to be conducive to the requirement that reduces production costs.Under not affecting the use function and being connected reliable prerequisite, it is protruding key that the wherein member of prior art is changed a social system.

the technical scheme that the above technical problem of the utility model solution is taked is: comprise that the front portion is provided with three inclined holes, the rear portion is with the collet body of endoporus, insert three pinches of collet body front portion, interior flare nut with pinch top threaded engagement, procapsid tightly overlaps interior flare nut and interior flare nut is inlaid in the groove of collet body, the procapsid back is back casing, be provided with lockplate in described back casing, be shaped with in the middle of the spring lockplate on the rear end external diameter that square hole is linked in collet body, the inboard, middle square hole lower end of lockplate is inlaid in the through hole of the collet body back lower place, and there is part exposed in hole wall, this exposed part can be entrenched in when drill chuck is installed in the groove of drill gun main shaft, inboard, square hole upper end is embedded with spring, spring push is on the outer diameter flat of collet body rear end, make the movement of lockplate energy Self-resetting in through hole, lockplate has part exposed on the surface, it is the button of pressing for hand, it is characterized in that collet body endoporus wall is provided with protruding key, can with the anterior external diameter of drill gun main shaft on " ten " word breach be interlocked, can be driven to rotate.

The utility model is rational in infrastructure, and installation or removal are convenient, connects reliable.

Description of drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the assembling half sectional view of the utility model embodiment.

Fig. 2 is Figure 1A-A cutaway view.

Fig. 3 is the cutaway view of Figure 1B-B.

Fig. 4 is the front view of drill gun front end.

1. pinch, 2. collet body, 3. interior flare nut, 4. procapsid, 5. back casing, 501. side openings, 6. lockplate, 601. buttons, 201. protruding keys, 202. through holes, 203. holes, 204. symmetrical planes, 7. spring, 8. back-up ring.

The specific embodiment

Single button is outer connects hand fastening drill clutch, and collet body 2 front ends are shaped with the endoporus of three inclinations, are fitted with threaded three pinches 1 in endoporus, by the interior flare nut 3 of procapsid 4 tight covers; Interior flare nut is entrenched in the groove of collet body 2, when rotating procapsid 4, three pinch 1 Telescopic movables, one side of the rear face 203 of collet body 2 has the through hole 202 that is interlinked to the outside in, the square hole of lockplate 6 is sleeved on 203 external diameters of hole, inboard, square hole lower end is entrenched in through hole 202, and exposed in hole 203 by part, be fitted with spring 7 in the middle of inboard, lockplate square hole upper end, be inlaid in lockplate 6 through hole 202 in can reveal on endoporus 203 walls and can flood with the groove fastening of drill gun main shaft or separate when button 601 is pressed; Collet body 2 endoporus inner ends, rear portion are provided with protruding key (201), this protruding key can with the drill gun main shaft on " ten " word breach driven rotary that is interlocked; Back casing 5 ring body one sides have side opening 501, and lockplate 6 is inlaid in side opening 501 and the exposed outer surface at back casing 5 of button 601 is arranged.

when needs use this drill chuck, hold and press the button 601 of back casing 5 sides, at this moment the former exposed quilt on wall surface of the hole of the part of the middle square hole inside lower end of lockplate is return in through hole, push away smoothly only terminal after being inserted in the drill gun main shaft, meanwhile " ten " word breach on the anterior external diameter of the protruding key of inner end, hole and drill gun main shaft is interlocked, decontrol pressing button 601 this moment, button is Self-resetting under the effect of spring 7, again embedded in drill gun main shaft groove sealed by the lockplate 6 of returning and flooding in through hole 202, complete the installation of drill chuck of the present utility model, if dismounting also pulls out namely detachably simultaneously with same mode of operation.

Claims

1. connect hand fastening drill clutch in a single button: comprise that the front portion is provided with three inclined holes, the rear portion is with the collet body (2) of endoporus, insert three pinches (1) of collet body front portion, interior flare nut (3) with pinch top threaded engagement, procapsid (4) tightly overlaps interior flare nut and interior flare nut is inlaid in the groove of collet body, the procapsid back is back casing (5), be provided with lockplate (6) in described back casing, spring (7), be shaped with in the middle of lockplate on the rear end external diameter that square hole is linked in collet body, the inboard, middle square hole lower end of lockplate is inlaid in the through hole interior (202) of the collet body back lower place, and there is part exposed in hole wall, this exposed part can be entrenched in when drill chuck is installed in the groove of drill gun main shaft, inboard, square hole upper end is embedded with spring, spring push is on the outer diameter flat of collet body rear end, make the movement of lockplate energy Self-resetting in through hole, lockplate has part exposed on the surface, it is the button (601) of pressing for hand, it is characterized in that collet body endoporus wall is provided with protruding key (201), can with the anterior external diameter of drill gun main shaft on " ten " word breach be interlocked, can be driven to rotate.