CN2892505Y

CN2892505Y - Electric pencial sharpener

Info

Publication number: CN2892505Y
Application number: CN 200620102134
Authority: CN
Inventors: 姜立刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-29
Filing date: 2006-03-29
Publication date: 2007-04-25
Anticipated expiration: 2016-03-29

Abstract

One kind of electric sharpener is featured by the fact that within shell (1) is set a metal sheet (81), a metal elastic piece (8) and a metal contact tablet (82); on the mentioned hob head (31), the rotary gear (36) and the metal sheet (81) contact with each other, the collection basket (85) with the metal contact tablet (82), the metal sheet (81) with the metal elastic piece (8) and the metal contact tablet (82) and the metal sheet (81); in addition, within the mentioned hob head (31) is a hole cavity (37) and the roof bar can be inserted in the hole cavity (37) in move; the top of the mentioned roof bar (7) can contact with the pencil (2) while the bottom with the metal elastic piece (8). The advantages of the utility model are simple structure, a small number of parts, simple process and low production cost, thus effectively increasing the production efficiency of the enterprise; in addition, the most obvious advantage of such kind of sharpener is convenient use, that is, once the inner end of the pencil contacts with the roof bar and the motor stops, the pencil has been sharpened.

Description

Electronic pencil sharpener

Technical field

The utility model relates to a kind of instrument that sharpens a pencil, and especially refers to a kind of electronic pencil sharpener.

Background technology

Existing pencil sharpener has two big classes, and the first kind is the single-blade pencil sharpener, and thin blade directly is fastened on the knife rest with bolt or screw, by rotating, digs sheet pen bits, and it is simple in structure, but blade is easily blunt, and nib is easily broken, and cutting quality descends fast.Second class is the spiral hobbing cutter pencil sharpener, promptly utilize the rotation of the hobboing cutter be contained on the hob head and hobboing cutter gear around internal gear, cutting is fixed on the pencil of hob head center, dig a sheet pen bits, this kind pencil sharpener must be operated by two hands simultaneously, perhaps in advance pencil sharpener is fixed, just can a hand operated.Patent is that 96250912.4 Chinese utility model patent has proposed a kind of structure that can one-handed performance for this reason, its structure comprises motor, gear case transmission mechanism, spiral hobbing cutter mechanism, shell, loam cake, motor reel is provided with motor gear, spiral hobbing cutter mechanism is provided with hob head, cutter shaft, the hob head center is provided with pencil insertion hole, cutter shaft is provided with hobboing cutter, the hobboing cutter gear, on the pencil sharpener support, be provided with the inner gear ring that matches with the hobboing cutter gear, it is characterized in that gear case transmission mechanism is provided with the I-I power transmission shaft that is parallel to each other, the II-II power transmission shaft, the III-III power transmission shaft, be provided with centring ring on the II-II power transmission shaft successively, II level pinion, the sliding friction sheet, II level gear wheel, II level spring, centring ring, be provided with axial slide bar on the III-III power transmission shaft successively, III level gear wheel, place, III-III power transmission shaft one end is provided with contact chip, following contact chip, motor gear and bevel gear engagement, pinion on the bevel gear and the engagement of II level gear wheel, said hob head lower end is provided with the axial sliding sleeve that matches with axial slide bar, pressing contact chip under the hob head contacts with following contact chip, hobboing cutter gear and inner gear ring engagement, III level gear wheel and II level pinion slide and mesh.When circuit is connected, the motor start-up motor power is delivered to II level gear wheel through motor gear, is delivered to the II pinion through sliding friction film, is delivered to axial slide bar through III level gear wheel again, further, transmission of power is arrived spiral hobbing cutter mechanism by to sliding sleeve.Its major advantage is that pressure reaches one-handed performance when utilizing pencil.But its shortcoming, structure are too complicated, and to slide bar, sliding friction sheet, II level spring and centring ring etc., not only complex manufacturing technology, and cost of manufacture is also high, thereby directly influences the productivity effect of enterprise as needs; Also have and use also inconvenience, can't know in use whether pencil digs, and wonder and pencil cutting from pencil sharpener can only be taken out in the hole, can know, and when finding also not dig into fully, then to repeat said process, repeat possibly repeatedly sometimes, so use very trouble, so said structure is still waiting further improvement.

Summary of the invention

Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of simple in structure, easy to use, cost of manufacture is low and when the automatic electronic pencil sharpener of prompting of pencil-knife Cheng Houneng.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of electronic pencil sharpener, include housing, motor, collect basket, travelling gear and hobboing cutter mechanism, described motor, collect basket, travelling gear and hobboing cutter mechanism are arranged in the housing respectively, described hobboing cutter mechanism comprises hob head and hobboing cutter, described hobboing cutter is to be connected in rotationally on the hob head, and described hob head is to be connected in rotationally in the housing, and an end axle head of described hob head is fixed with transmitting gear, this transmitting gear and travelling gear and the motor gear that is fixed on the machine shaft are connected with a joggle togather successively, the other end of described hob head be provided with housing on the pencil jack align cut a hole, it is characterized in that described transmitting gear its below housing in be provided with sheet metal, metallic elastic sheet and Metal Contact sheet, described transmitting gear bottom surface cooperates with sheet metal and contacts together, the contact of sheet metal contacts with the metallic elastic sheet of lower position and separates cooperation, the insertion portion of collecting basket contacts together with cooperating above the Metal Contact sheet, the contact of Metal Contact sheet contacts cooperation with the coupling part of the sheet metal of lower position, when hob head presses down and is in a falling state, described transmitting gear extrusion metal sheet and sheet metal and metallic elastic sheet are contacted, described motor is by the metallic elastic sheet, sheet metal, Metal Contact sheet and lead and power supply constitute the loop, and in the lower end axle head of the fixedly transmitting gear on described hob head, axially be provided with vestibule, this vestibule with cut a hole and be connected, and in this vestibule, be plugged with push rod movably, the upper end of this push rod can contact mutually with being inserted in the pencil of cutting in the hole, and the lower end of push rod is extended from vestibule with the metallic elastic sheet and contacted cooperation mutually.

As improvement, be provided with division board in the described housing, upper shield is fastened on the division board, transmitting gear, travelling gear and motor gear and sheet metal, metallic elastic sheet and Metal Contact sheet all are installed in the cavity between upper shield and the division board, the upper shield sidepiece has jack allows the insertion portion of collecting basket insert, it can prevent as far as possible that dust pen bits from entering in transmission mechanism and the current-carrying part, improves the functional reliability of penknife, reduces contingency.

The described insertion portion of collecting basket has the inclined-plane that cooperates with the Metal Contact sheet, improves stability in contact.

As improvement, described power supply may be selected to be the battery that places in the housing; And described battery is a battery pack structure.

As further improvement, described battery can be preferably rechargeable battery.

Compared with prior art, advantage of the present utility model is: compared with prior art, be provided with sheet metal in the housing below the described transmitting gear of the utility model, metallic elastic sheet and Metal Contact sheet, the bottom surface of described transmitting gear and sheet metal contact together, and collection basket bottom surface and Metal Contact sheet contact together, when hob head is in a falling state in subordinate's pressure, described transmitting gear extrusion metal sheet and sheet metal and metallic elastic sheet are contacted, collect basket extrusion metal contact chip and Metal Contact sheet and sheet metal are contacted, make motor, sheet metal, metallic elastic sheet and Metal Contact sheet constitute the loop by lead and power supply, and described hob head is fixed in the end of transmitting gear, axially be provided with vestibule, this vestibule with cut a hole and be connected, and in this vestibule, be plugged with push rod movably, the upper end of this push rod can be inserted in the pencil of cutting in the hole and contact mutually, and the lower end of push rod is extended from vestibule with the metallic elastic sheet and is contacted mutually, its advantage is that project organization is simple, the making parts have been reduced effectively, only need in hobboing cutter mechanism, mix push rod with and be in contact with one another sheet and get final product, not only manufacture craft is simple, and production cost is low, thereby has improved the productivity effect of enterprise effectively; And the utility model pencil sharpener biggest advantage also is easy to use, in use as long as when the inner end of pencil contacts push rod, promptly there is push rod to promote the metallic elastic sheet, the metallic elastic sheet is separated with sheet metal, thereby the circuit of motor is disconnected, then motor stops operating, thereby knows that promptly pencil digs, and does not need pencil cutting from pencil sharpener taken out in the hole and can be known.And this pencil sharpener is when pencil is taken out from cut a hole, then sheet metal loses external force and by self elastic force hob head is upwards lifted, this moment, sheet metal separated with bullet metallic elastic sheet, be that circuit disconnects, motor quits work, and inserts again when cutting hole when the pen that need cut, and gently pressing down with have gentle hands is motor circuit conducting and motor is rotated again again again, then can dig second pencil to be dug, so use very convenient.And be not inserted into when putting in place in the casing when collecting basket, pencil sharpener can not worked, and is more secure and reliable to use.

Description of drawings

Fig. 1 is the stereogram of the utility model embodiment;

Fig. 2 is that travelling gear and hobboing cutter mechanism are combined together stereogram among Fig. 1;

Fig. 3 removes to cover the back partial sectional view among Fig. 1;

Fig. 4 is the cutaway view of Fig. 1;

Fig. 5 is the enlarged drawing of I portion among Fig. 4.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Extremely shown in Figure 5 as Fig. 1, the electronic pencil sharpener of present embodiment, include housing 1, motor 5, collect basket 85, travelling gear 6 and hobboing cutter mechanism 3, described motor 5, collect basket 85, travelling gear 6 and hobboing cutter mechanism 3 are arranged at respectively in the housing 1, hobboing cutter mechanism 3 includes hob head 31 and hobboing cutter 32 as traditional structure, described hobboing cutter 32 is to be enclosed within on the oblique fixed axis and to be arranged at a side on the hob head 31 rotationally, axle head and following axle head above hob head 31 utilizes and be arranged in the housing 1 rotationally and on the upper shield 100, and the lower end axle head 35 of described hob head 31 is fixedly connected with transmitting gear 36 after passing upper shield 100, this transmitting gear 36 and travelling gear 6, the motor gear 51 that is fixed on the machine shaft 52 is connected with a joggle togather successively, wherein motor 5 also is to be provided with to be fixed on the upper shield 100, and the motor gear 51 that machine shaft 52 passes upper shield 100 backs and the inside links together.Hob head 31 other ends 34 are provided with cuts a hole 33, aligns with pencil jack 11 on the housing 1.Upper shield 100 is fastened on the division board 101, forms sealed space substantially, and the sidepiece of upper shield 100 has jack allows the insertion portion 83 of collecting basket 85 insert.In upper shield 100 the insides, below transmitting gear 36, in the housing 1, be provided with on the division board 101 and be fixed with sheet metal 81, metallic elastic sheet 8 and Metal Contact sheet 82, see Fig. 3 and shown in Figure 4.Wherein transmitting gear 36 bottom surfaces cooperate with sheet metal 81 and contact together, the contact of sheet metal 81 contacts with the metallic elastic sheet 8 of lower position and separates cooperation, the insertion portion 83 of collecting basket 85 contacted together with 82 top cooperations of Metal Contact sheet, the contact of Metal Contact sheet 82 contacts cooperation with the coupling part of the sheet metal of lower position 81, after jack that the insertion portion 83 of collecting basket 85 is inserted into upper shield 100 puts in place, collect basket 85 and Metal Contact sheet 82 and sheet metal 81 are contacted with regard to extrusion metal contact chip 82.When hob head 31 presses down and is in a falling state, described transmitting gear 36 extrusion metal sheets 81 and sheet metal 81 and metallic elastic sheet 8 are contacted, motor 5 is just by metallic elastic sheet 8, sheet metal 81, Metal Contact sheet 82 and lead and power-supply battery constitute the loop, and hob head 31 is fixedly in the lower end axle head 35 of transmitting gear 36, axially be provided with vestibule 37, this vestibule 37 with cut a hole 33 and be connected, and in this vestibule 37, be plugged with push rod 7 movably, the upper end of this push rod 7 can contact mutually with being inserted in the pencil of cutting in the hole 33 2, and the lower end of push rod 7 is extended from vestibule 37 with metallic elastic sheet 8 and contacted cooperation mutually.

Upper shield 100 is fixedly connected on the division board 101 to be formed, form sealed space substantially, transmitting gear 36, travelling gear 6 and motor gear 51 and sheet metal 81, metallic elastic sheet 8 and Metal Contact sheet 82 all are installed in the cavity between upper shield 100 and the division board 101, sheet metal 81, metallic elastic sheet 8 and Metal Contact sheet 82 are screwed on division board 101, upper shield 100 sidepieces have jack, allow insertion portion 83 insertions of collecting basket 85 cooperate with Metal Contact sheet 82, wherein, the insertion portion 83 of collection basket 85 has the inclined-plane 84 that cooperates with Metal Contact sheet 82.

The surface of housing 1 is provided with indicator lamp 12, is cascaded with motor 5.Collecting basket 85 is plug-in card sides at housing 1.

Its operation principle and use are as follows, when collecting the side of basket 85 plug-in cards at housing 1, collect of the jack insertion of the insertion portion 83 of basket 85 by upper shield 100, the inclined-plane 84 of collecting basket 85 makes Metal Contact sheet 82 and sheet metal 81 contact with regard to extrusion metal contact chip 82, in pencil is inserted into the jack 11 of pencil sharpener, make when hob head 31 presses down and is in a falling state, transmitting gear 36 extrusion metal sheets 81 and sheet metal 81 and metallic elastic sheet 8 are contacted, motor 5 is just by metallic elastic sheet 8, sheet metal 81, Metal Contact sheet 82 and lead and power-supply battery constitute the loop, motor just rotates, drive 3 rotations of hobboing cutter mechanism by gear drive, make hobboing cutter 32 cutting pencils, when the inner end of pencil contacts push rod 7, promptly there is push rod 7 to promote metallic elastic sheet 8, metallic elastic sheet 8 is separated with sheet metal 81, thereby the circuit of motor is disconnected once more, motor 5 stops operating, indicator lamp 12 extinguishes, thereby know that promptly pencil digs, when pencil is taken out from cut a hole, then sheet metal 81 loses external force and by self elastic force hob head 31 is upwards lifted, this moment, sheet metal 81 separated with bullet metallic elastic sheet 8, circuit disconnects, and motor 5 still quits work.

Claims

1, a kind of electronic pencil sharpener, include housing (1), motor (5), collect basket (85), travelling gear (6) and hobboing cutter mechanism (3), described motor (5), collect basket (85), travelling gear (6) and hobboing cutter mechanism (3) are arranged at respectively in the housing (1), described hobboing cutter mechanism (3) comprises hob head (31) and hobboing cutter (32), described hobboing cutter (32) is to be connected in rotationally on the hob head (31), and described hob head (31) is to be connected in rotationally in the housing (1), and an end axle head (35) of described hob head (31) is fixed with transmitting gear (36), this transmitting gear (36) and travelling gear (6) and the motor gear (51) that is fixed on the machine shaft (52) are connected with a joggle togather successively, the other end (34) of described hob head (31) is provided with housing (1) goes up that pencil jack (11) aligns and cuts a hole (33), it is characterized in that described transmitting gear (36) its below housing (1) in be provided with sheet metal (81), metallic elastic sheet (8) and Metal Contact sheet (82), described transmitting gear (36) bottom surface cooperates with sheet metal (81) and contacts together, the contact of sheet metal (81) contacts with the metallic elastic sheet (8) of lower position and separates cooperation, the insertion portion (83) of collecting basket (85) contacted together with top cooperation of Metal Contact sheet (82), the contact of Metal Contact sheet (82) contacts cooperation with the coupling part of the sheet metal (81) of lower position, when hob head (31) presses down and is in a falling state, described transmitting gear (36) extrusion metal sheet (81) and sheet metal (81) and metallic elastic sheet (8) are contacted, described motor (5) is by metallic elastic sheet (8), sheet metal (81), Metal Contact sheet (82) and lead and power supply constitute the loop, and in described hob head (31) lower end axle head (35), axially be provided with vestibule (37), this vestibule (37) with cut a hole (33) and be connected, and in this vestibule (37), be plugged with push rod (7) movably, the upper end of this push rod (7) can contact mutually with being inserted in the pencil of cutting in the hole (33) (2), and the lower end of push rod (7) is extended from vestibule (37) with metallic elastic sheet (8) and contacted cooperation mutually.

2, electronic pencil sharpener according to claim 1, it is characterized in that being provided with in the described housing (1) division board (101), upper shield (100) is fastened on the division board (101), transmitting gear (36), travelling gear (6) and motor gear (51) and sheet metal (81), metallic elastic sheet (8) and Metal Contact sheet (82) all are installed in the cavity between upper shield (100) and the division board (101), and upper shield (100) sidepiece has jack allows the insertion portion (83) of collecting basket (85) insert.

3, electronic pencil sharpener according to claim 1 and 2 is characterized in that the described insertion portion (83) of collecting basket (85) has the inclined-plane (84) that cooperates with Metal Contact sheet (82).

4, electronic pencil sharpener according to claim 3 is characterized in that described power supply is for placing the battery (4) in the housing (1).

5, electronic pencil sharpener according to claim 3 is characterized in that described battery (4) is a battery pack structure.

6, electronic pencil sharpener according to claim 3 is characterized in that described battery (4) is a rechargeable battery.