CN107520001B - Tablet cutting and grinding device - Google Patents

Abstract

The invention discloses a tablet dividing mill, which comprises an upper cover and a lower cover connected to each other through a rotating shaft, a sealing plate is arranged on the upper opening of the lower cover, and a vertical partition is arranged below the sealing plate to divide the lower cover into two parts. A front room and a back room, the front room and the back room are respectively provided with a powder storage box and a cut tablet storage box; behind the vertical partition and above the cut tablet storage box, a useful In the tablet positioning device for fixing the tablets to be cut, a grinding device for grinding the cut tablets is provided in front of the vertical partition, and the lower end of the grinding device extends into the powder storage box; A switching device for switching different cutting knives is arranged on the upper cover, and a knife holder for cutting tablets is fixedly connected below the switching device. The invention occupies less height and space, has the function of positioning the tablets, can cut the tablets into equal parts and effectively grinds the tablets into fine powder, and can separately store the cut medicine granules and the milled medicine powder.

Description

tablet splitting grinder

technical field

The invention relates to medical supplies, in particular to an appliance capable of cutting and grinding tablets.

Background technique

At present, the commonly used tablet size is mainly made according to the adult dose, in order to meet the subdivision needs of children or some special patients such as mental patients; the dosage is often divided into two equal parts, third equal parts, and four equal parts according to the doctor's advice. equally divided. Sometimes it is also necessary to grind the tablet into a powder before taking it. To meet this need, some solutions have emerged.

For example, the Chinese patent "a kind of tablet cutter" with publication number CN204395011U uses elastic metal sheet and clamping block to carry out tablet positioning, but can only cut the tablet into two halves, and can not grind the tablet.

Although the Chinese patent "Tablet Cutter" with the publication number CN202498564U can cut the tablet into 1/2, 1/3, 1/4, the tablet that is too large cannot be put into the groove, and the tablet that is too small cannot be positioned. used. In addition, each type of blade in this design corresponds to a drug placement groove, which takes up a lot of space.

The Chinese patent "Tablet Cutting and Grinder" with the publication number CN202497915U adds a grinding function, but the traditional grinding method is used for grinding, and the operation is clumsy, and the extrusion of the grinding is easy to stick the powder to the grinding body superior.

Publication No. CN106078827A's Chinese patent "tablet splitting and crushing device" is a better design, which integrates tablet cutting and crushing. An adjustable cutting groove is adopted, and different cutting parts can be selected by switching blades, and the grinding method is also ground in the same groove by switching. However, in this design, the switching rotation axis of the blade is in the horizontal direction, which takes up a lot of space in the height direction, and the switching structure and tablet positioning structure are relatively complicated. The milling of this design uses a single vertical extrusion method, which lacks a milling process, and the tablets cannot be concentrated in the middle after being squeezed to the periphery, it is difficult to squeeze all the tablets into powder, and it is difficult to take out the extrusion After pressure medicine.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a tablet dividing mill that occupies less space, can cut tablets into equal parts, and can effectively grind the tablets into fine powder. The grinder of the present invention also has a simple and practical tablet positioning device, and can also separately store the cut medicine granules and the ground medicine powder.

The technical solution adopted in the present invention is: a tablet splitting mill, including an upper cover and a lower cover connected to each other through a rotating shaft, the upper opening of the lower cover is provided with a sealing plate, and a vertical The partition divides the lower cover into an anterior chamber and a rear chamber, and the anterior chamber and the rear chamber are respectively provided with a powdered medicine storage box and a split tablet storage box, and the split tablet storage box and the sealing plate The rear side of the vertical partition is connected; the rear of the vertical partition and above the cut tablet storage box are provided with a tablet positioning device for fixing the tablets to be cut, and the front of the vertical partition is provided with a device for grinding A milling device that cuts the tablet and communicates with the front side of the sealing plate and the powdered medicine storage box. The lower end of the milling device extends into the powdered medicine storage box; A switching device for different cutting knives, a knife holder for cutting tablets is fixedly connected to the lower part of the switching device.

The tablet positioning device includes two positioning plates that are arranged on the left and right sides of the sealing plate and can be opened and closed. As for the moving nut block, the thread directions of the two nut blocks are opposite; block matching connection; one end of the adjusting screw is provided with an adjusting knob, the adjusting screw is turned by the adjusting knob, and the positioning plate is driven to open and close by the nut block.

The grinding device includes a grinding knife, a grinding bucket and a guide wall; the grinding bucket includes a bucket body and a bucket mouth connected to each other, and the inner cavity of the bucket body is an arc-shaped plate on the rear side and a straight wall on the front side The plate is a funnel-shaped structure with a large upper part and a smaller lower part. The arc-shaped plate on the rear side of the bucket body is connected to the front side of the sealing plate; the mouth of the bucket is a straight wall that matches the lower section of the milling knife section; the milling knife is divided into a fine-toothed section, a coarse-toothed section and a connecting section from bottom to top, the connecting section is fixed on the upper cover, and the fine-toothed section extends into the mouth of the bucket and can Slide up and down in the mouth of the bucket; the guide wall is arranged on the sealing plate, the inner wall of the guide wall transitions from the back to the front arc, and the closing mouth points to the grinding bucket.

The fine teeth on the fine tooth section and the coarse teeth on the coarse tooth section are distributed on one side or on both sides; the coarse teeth on the coarse tooth section gradually become larger from bottom to top.

Grinding teeth are distributed on the inner wall of the grinding bucket.

The switching device includes a switching knob, a connecting column, and a positioning fastener; the switching knob is a disc-shaped structure with anti-slip protrusions and concaves distributed around the periphery, and the lower end surface of the switching knob is provided with a circular concave; the upper end of the connecting column It is fixed at the central position of the circular indentation of the switching knob, and the lower end passes through the upper cover and extends into the upper cover to connect with the knife holder; the positioning fastener is provided with at least one, and the positioning buckle The component includes a cantilever, and the cantilever is arranged along the circumferential direction. It is an arc-shaped arm with one end connected to the top of the upper cover and one end suspended in the air. Buckle heads that match the buckle grooves on the concave side walls.

There are three positioning fasteners distributed along the circumferential direction of the through hole of the upper cover.

The knife holder includes a cutterhead and a cutter fixed on the cutterhead, the center of the cutterhead is connected to the lower end of the connecting column of the switching device through a screw, and the switching knob of the switching device is rotated to rotate knife holder, and under the action of the positioning fastener of the switching device, the selected cutting knife can be positioned above the tablet positioned by the tablet positioning device.

Described cutting knife is provided with three groups, is respectively the inline shape cutting knife of bisecting tablet, the 120 degree Y shape cutting knife of three equalizing tablet and the cross-shaped cutting knife of quartering tablet, and the cutting knife of three groups is along the The cutter head is arranged in the circumferential direction, and the three groups of cutters are respectively connected to the cutter head through corresponding connecting grooves.

A torsion spring is sheathed on the rotating shaft so that the upper cover and the lower cover have unscrewing force, and the two ends of the torsion spring respectively act on the upper cover and the lower cover.

The beneficial effects of the present invention are:

1. The horizontal switching device is adopted between each group of cutting knives in the present invention, which occupies less height space.

2. The present invention adopts the positioning fasteners arranged in a circle, so that the positioning of the knife holder is simple and reliable in structure.

3. The tablet positioning device of the present invention has a large adjustment range and is simple and reliable.

4. In the present invention, the grinding method is carried out by the reciprocating movement of the milling knife up and down, which has a novel concept and a simple and practical structure.

5. In the present invention, the divided medicine particles can be conveniently imported into the tablet storage box for storage; the powdered medicine after grinding can be directly leaked into the medicine powder storage box for storage, which is convenient to operate and reduces drug pollution.

Description of drawings

Fig. 1: the front section view of the closed state of the upper cover of a kind of tablet dividing mill of the present invention;

Fig. 2: a front sectional view of a half-opened upper cover of a tablet splitting mill according to the present invention;

Figure 3: Axonometric view after section A-A in Figure 1;

Fig. 4: the left front axonometric sectional view of a tablet dividing mill of the present invention;

Fig. 5: a left rear axonometric sectional view of a tablet dividing mill of the present invention;

Drawings: 1. Upper cover, 1a, through hole, 1b, connecting boss, 2. Lower cover, 2a, sealing plate, 2b, vertical partition, 3. Rotating shaft, 4. Torsion spring, 5. Powder Storage box, 6, split tablet storage box, 7a, positioning plate, 7b, nut block, 7c, adjusting screw, 7d, adjusting knob; 8a, switching knob, 8aa, anti-skid convex and concave, 8ab, switching logo, 8ac, round Recessed, 8b, connecting column, 8ca, cantilever, 8cb, buckle head; 8cc, buckle groove, 8d, washer, 8e, screw, 9a, cutter head, 9b, connecting groove, 9c, cutter, 10aa, serrated segment , 10ab, coarse tooth section, 10ac, connecting section, 10ba, bucket body, 10bb, bucket mouth, 10c, guide wall.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, a tablet splitting mill consists of an upper cover 1, a lower cover 2, a rotating shaft 3, a torsion spring 4, a powder storage box 5, a split tablet storage box 6, and a tablet positioning device. , a blade switching device, a tool holder, and a grinding device.

The upper cover 1 is a box with an opening downward, and the top of the upper cover 1 has a through hole 1a, and the front side of the upper cover 1 is provided with a connection for connecting the grinding knife of the grinding device. Boss 1b. The lower cover 2 is a box with an upward opening, the upper opening of the lower cover 2 is provided with a sealing plate 2a, and a vertical partition 2b is arranged below the sealing plate 2a to divide the lower cover 2 into a front chamber and the back chamber, the cut tablet storage box 6 is arranged in the back chamber, and communicates with the rear side of the sealing plate 2a, the powdered medicine storage box 5 is arranged in the front chamber, and through grinding The device communicates with the front side of said closure plate 2a. The upper cover 1 and the lower cover 2 are hinged to each other through the rotating shaft 3, so that the upper cover 1 can be unscrewed and closed around the rotating shaft 3; the rotating shaft 3 is sleeved with a torsion spring 4, and the torsion spring The two ends of 4 respectively act on the upper cover 1 and the lower cover 2, so that the upper cover 1 and the lower cover 2 have unscrewing force. In addition, a positioning device is provided on the upper cover 1 and the lower cover 2, which can position the upper cover 1 in a fully open state, a half-open state and a closed state; Protrusion, and a small groove arranged on the outer side of the guide wall 10c of the milling device in the lower cover 2, the connection relationship between the small protrusion and the small groove is similar to a buckle, so that the upper cover 1 It can be in a half-open state, and the upper cover 1 can be opened with a little force. When the upper cover 1 is in the closed state, the upper cover 1 and the lower cover 2 cannot be separated by virtue of the elastic force of the torsion spring 4, and the upper cover can be opened with a little more force. 1 and the lower cover 2 are separated; when the upper cover 1 is in the fully open state and then closed, the upper cover 1 will be closed through the half-open state with a little force on the small protrusion. The fully open state is used to place pills, and the upper cover 1 can be cut after unscrewed. The closed state is used for storage when not in use. In the half-open state, the upper cover 1 and the lower cover 2 can be kneaded (but not yet Closed state), after letting go, reset to the half-open state under the action of torsion spring 4, constantly repeating the above actions can make the grinding knife constantly reciprocate up and down in the grinding bucket.

The tablet positioning device is arranged behind the vertical partition 2b and above the cut tablet storage box 6 for fixing the tablets to be cut. The tablet positioning device includes a positioning plate 7a, a nut block 7b, an adjusting screw 7c, and an adjusting knob 7d. The positioning plate 7a is provided with two pieces, which are respectively arranged on the left and right sides of the sealing plate 2a, and the two positioning plates 7a can be opened and closed under the action of the nut block 7b, the adjusting screw rod 7c, and the adjusting knob 7d. The nut block 7b is provided with two pieces, respectively connected under the two positioning plates 7a, and located under the sealing plate 2a, for driving the positioning plate 7a to move, wherein a connecting bar passes through the The slotted hole on the sealing plate 2a connects the positioning plate 7a with the slotted hole; the thread directions of the two nut blocks 7b are opposite. The two nut blocks 7b are jointly threaded on the adjusting screw 7c, and the left and right ends of the adjusting screw 7c have opposite thread directions, and are respectively matched and connected with the nut blocks 7b on the left and right sides. One end of the adjustment screw 7c is provided with an adjustment knob 7d, the adjustment screw 7c is screwed by the adjustment knob 7d, and the positioning plate 7a is opened and closed by the nut block 7b.

The grinding device is arranged in front of the vertical partition 2b for grinding the cut tablets. The lower end of the milling device extends into the medicine powder storage box 5 . The grinding device includes a grinding knife, a grinding bucket and a guide wall 10c. The milling bucket includes a bucket body 10ba and a bucket mouth 10bb that are connected to each other. The inner cavity of the bucket body 10ba is a funnel-shaped structure with an arc-shaped plate on the rear side and a straight wall plate on the front side. The rear arc-shaped plate of the bucket body 10ba is connected to the front side of the sealing plate 2a; the bucket opening 10bb is a straight wall section matched with the lower section of the milling knife, and its lower end extends into the In the powder storage box 5; for strengthening the milling effect, the inwall of the milling bucket can also distribute milling teeth. The milling knife is divided into a fine-toothed section 10aa, a coarse-toothed section 10ab and a connecting section 10ac from bottom to top. The tooth segment 10aa can grind the crushed tablets at the bucket mouth 10bb; the connecting segment 10ac is connected to the top of the upper cover 1 by cooperating with the connecting boss 1b, and the serrated segment 10aa extends into the bucket and can slide up and down in the bucket mouth 10bb, the fine teeth of the fine tooth section 10aa and the coarse teeth of the coarse tooth section 10ab can be distributed on one side towards the rear side, or can be distributed on both sides. Wherein, the rough teeth of the rough tooth section 10ab gradually become larger from bottom to top. The guide wall 10c is arranged on the sealing plate 2a, the inner wall of the guide wall 10c transitions from the back to the front arc, and the closing point points to the grinding bucket, so that the tablets after the tablet positioning device can be equally divided Introduced into the milling hopper.

The switching device is arranged on the upper cover 1 for switching between different cutters 9c. The switching device includes a switching knob 8a, a connecting column 8b, and a positioning fastener. The switching knob 8a is a disk-shaped structure, with non-slip convexes and concaves 8aa distributed around it; more than one switching mark 8ab is distributed on the switching knob 8a, and a circular concave 8ac is arranged on the lower end surface of the switching knob 8a. The connecting column 8b is a vertical column, its upper end is fixed at the center of the circular indentation 8ac of the switching knob 8a, and its lower end extends into the upper cover 1 through the through hole 1a of the upper cover 1 Connect the knife holder internally. The positioning fastener includes a cantilever 8ca, a buckle groove 8cc and a buckle head 8cb. The cantilever 8ca is arranged along the circumferential direction of the through hole 1a of the upper cover 1, and one end is connected to the top and one end of the upper cover 1. Suspended arc arm; the buckle groove 8cc is distributed on the side wall of the circular concave 8ac of the switching knob 8a; the buckle head 8cb is located at the suspended end of the cantilever 8ca, and cooperates with the buckle groove 8cc , to form a positioning fit of fasteners; at least one positioning fastener is provided, and in this embodiment, there are three positioning fasteners distributed along the circumferential direction of the through hole 1a of the upper cover 1 .

The knife holder is fixedly connected under the switching device and is used for cutting the tablets. The knife holder includes a knife disc 9a and a cutter 9c fixed on the knife disc 9a. The cutter head 9a is a disc structure, the center of which is connected to the lower end of the connecting column 8b of the switching device through a screw 8e, by rotating the switching knob 8a of the switching device to rotate the knife rest, and at the bottom of the switching device Under the action of the positioning fastener, the selected cutter 9c can be positioned above the tablet positioned by the tablet positioning device, and when the cutter 9c is pressed down, the tablet is equally divided; between the screw 8e and the cutter head 9a A gasket 8d is arranged between them. The cutter 9c is provided with three groups, which are respectively a straight cutter for halves of the tablet, a 120-degree Y-shaped cutter for the third tablet and a cross-shaped cutter for the quartered tablet. The cutters 9c of the three groups Arranged along the circumferential direction of the cutter head 9a, the three sets of cutters 9c are respectively connected to the cutter head 9a through corresponding connecting grooves 9b.

The working process of the present invention is as follows:

The working process of cutting the tablet: open the upper cover 1 to the fully open state, place the tablet between the two positioning plates 7a, turn the adjusting knob 7d to position the tablet, turn the switching knob 8a, and cut into equal parts according to the needs Select the cutter 9c, then press down the upper cover 1, thereby driving the cutter 9c to cut the tablet, after letting go, tilt backward (the backward tilt is inclined to the direction of the rotating shaft 3), and the cut medicine can be poured into the cut tablet for storage Box 6. If the tablet dividing mill is tilted forward, the divided medicine particles can be introduced into the milling bucket.

The working process of milling tablets: After the divided medicine particles are introduced into the milling hopper, the upper cover 1 is placed in a half-open state, and the upper cover 1 and the lower cover 2 can be kneaded by continuous pressing, and the tablet is cut by tilting forward. Dividing mill, the divided medicine particles automatically fall into the milling hopper, by continuously kneading the upper and lower covers 2, the milling knife is continuously reciprocating up and down in the milling hopper, and the coarse teeth of the milling knife When 10ab is descending, due to the wedge-shaped action of the grinding bucket, the grinding teeth will take the medicine grains down, squeeze and grind the medicine grains, and crush the medicine grains. When the coarse tooth section 10ab moves upwards, it can stir and stir the medicine grains, so Reciprocating, all the medicine grains in the milling bucket can be crushed. When the milling knife moves down, the crushed medicine particles are brought into the mouth 10bb of the milling hopper by the fine-toothed section 10aa of the milling knife, and are continuously finely ground by the fine-toothed section 10aa. The lower end of the bucket opening 10bb of the grinding bucket leaks into the powder storage box 5 .

Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, people can also make many forms without departing from the purpose of the present invention and the scope of protection of the claims, and these all belong to the protection scope of the present invention.

Claims (8)

1. A tablet splitting and grinding device comprises an upper cover and a lower cover which are connected with each other through a rotating shaft, and is characterized in that a sealing plate is arranged at the upper opening of the lower cover, a vertical partition plate is arranged below the sealing plate to divide the lower cover into a front chamber and a rear chamber, a powder storage box and a split tablet storage box are respectively arranged in the front chamber and the rear chamber, and the split tablet storage box is communicated with the rear side of the sealing plate; a tablet positioning device used for fixing tablets to be cut is arranged behind the vertical partition plate and above the tablet cutting storage box, a grinding device used for grinding the cut tablets and communicated with the front side of the sealing plate and the tablet end storage box is arranged in front of the vertical partition plate, and the lower end of the grinding device extends into the tablet end storage box; the upper cover is provided with a switching device for switching different cutters, and a cutter frame for cutting tablets is fixedly connected below the switching device;

the switching device comprises a switching knob, a connecting column and a positioning fastener; the switching knob is of a disc-shaped structure, antiskid convex-concave parts are distributed on the periphery of the switching knob, and a circular concave part is arranged on the lower end face of the switching knob; the upper end of the connecting column is fixed at the center of the circular concave of the switching knob, and the lower end of the connecting column penetrates through the upper cover and extends into the upper cover to be connected with the tool rest; the switching knob is characterized in that at least one positioning fastener is arranged, each positioning fastener comprises a cantilever, each cantilever is arranged along the circumferential direction and is an arc-shaped arm with one end connected to the cover top of the upper cover and the other end suspended in the air, and the suspended end of each cantilever is provided with a buckle head matched with a buckle groove distributed on the circular concave side wall of the switching knob;

the upper cover and the lower cover are provided with torsional springs with rotary opening force, and two ends of each torsional spring act on the upper cover and the lower cover respectively.

2. The tablet splitting mill as claimed in claim 1, wherein the tablet positioning means comprises two positioning plates which are provided on the left and right sides of the sealing plate and can be opened and closed, a nut block which is provided below the sealing plate and can drive the positioning plates to move is connected below each of the two positioning plates, and the two nut blocks have opposite thread directions; the two nut blocks are commonly arranged on an adjusting screw rod in a penetrating mode, the thread directions of the left end and the right end of the adjusting screw rod are opposite, and the adjusting screw rod and the left end and the right end of the adjusting screw rod are respectively connected with the nut blocks on the left side and the right side in a matching mode; and an adjusting knob is arranged at one end of the adjusting screw, the adjusting screw is screwed through the adjusting knob, and the positioning plate is driven to open and close through the nut block.

3. The tablet splitting mill of claim 1, wherein the milling means comprises a milling blade, a milling hopper and a guide wall; the grinding hopper comprises a hopper body and a hopper opening which are connected with each other, the inner cavity of the hopper body is of a funnel-shaped structure with an arc-shaped plate at the rear side and a straight wall plate at the front side, and the upper part and the lower part of the funnel-shaped structure are large, and the arc-shaped plate at the rear side of the hopper body is connected with the front side of the sealing plate; the hopper opening is a straight wall section matched with the lower section of the grinding cutter; the grinding knife is divided into a fine tooth section, a coarse tooth section and a connecting section from bottom to top, the connecting section is fixed on the upper cover, and the fine tooth section extends into the hopper opening and can slide up and down in the hopper opening; the guide wall is arranged on the sealing plate, the inner wall of the guide wall is in arc transition from back to front, and the closing-in point points to the grinding hopper.

4. A tablet splitting mill as claimed in claim 3, wherein the fine teeth of said fine tooth segment and the coarse teeth of said coarse tooth segment are single-sided or double-sided; the coarse teeth on the coarse tooth section become larger gradually from bottom to top.

5. A tablet splitting mill as in claim 3 wherein the milling hopper has milling teeth distributed on its inner wall.

6. The tablet splitting mill of claim 1, wherein three positioning fasteners are provided along the circumference of the through hole of the upper cover.

7. A tablet splitting mill according to claim 1, wherein the cutter head comprises a cutter head and cutters fixed to the cutter head, the center of the cutter head is connected to the lower end of the connecting column of the switching device by a screw, the cutter head is rotated by rotating the switching knob of the switching device, and the selected cutter is positioned above the tablet positioned by the tablet positioning device by the positioning fastener of the switching device.

8. A tablet splitting mill according to claim 7, wherein said cutters are provided in three groups, namely an in-line cutter for bisecting tablets, a 120 degree Y cutter for trisecting tablets and a cross cutter for quartering tablets, said three groups of cutters being arranged along a circumferential direction of said cutter head, said three groups of cutters being connected to said cutter head through respective connecting grooves.

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