CN2110871U

CN2110871U - Multifunctional automatic digital display hardness measurer for medicine

Info

Publication number: CN2110871U
Application number: CN 91232853
Authority: CN
Inventors: 那涤非
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-29
Filing date: 1991-12-29
Publication date: 1992-07-22

Abstract

The utility model relates to a multifunctional automatic digital display hardness measurer for medicine, which is composed of a mechanical transmission mechanism, a motor control circuit and a digital display circuit, wherein, the mechanical transmission mechanism comprises a pressure sensor 14 which is installed on a supporting frame 13, a pressing plate 15 or a probe which is connected with a pressing head of the pressure sensor 14, and a bearing tray 6 which is positioned under the pressing plate 15 or the probe and forms integrative structure with a lifting rod 7. The lifting rod 7 and an outer sleeve barrel 8 are mutually constrained by a trapezoidal groove and a trapezoidal bolt 19, and the bottom end of the lifting rod 7 and the screw rod 9 in the center of a speed changing gear 10 are connected with each other by screws. The tray can automatically lift, the pressure hardness values are automatically displayed, and the utility model has the advantage of exact and quick test.

Description

Multifunctional automatic digital display hardness measurer for medicine

The utility model relates to a kind of medicine hardness-testing device, is meant the multi-functional automatic digital display hardness-testing device of a kind of medicine especially.

Traditional Chinese medicine pill is a kind of formulation of Chinese patent drug, and hardness is one of its quality index that need detect.Owing to there not being a kind of medicine inspection instrument of measuring the close ball hardness of Chinese medicine all the time,, promptly adopt traditional hand to pinch finger sense determination method so the continuous method of using in edge is only to come to a conclusion by rule of thumb.The application number that the applicant applied for to Patent Office of the People's Republic of China on Dec 2nd, 1 is 89220330.7 pill hardness-testing device, detect for the hardness that solves traditional Chinese medicine pill exactly, thereby make the hardness test of traditional Chinese medicine pill that science arranged for the first time, fast, instrument accurately.This medicine hardness-testing device, rise or descend by the gear train, drive one pallet that are installed in the base, and the probe that is connected with the torque type instrument that the pill that is seated in the required test in the pallet and pallet top are fixed contacts, and then the pressure in the contact process is transformed into hardness number and is reflected on the torque type panel board.

The purpose of this utility model provides a kind of pallet automatic lifting, and pressure hardness numerical value shows that automatically test is accurate, rapidly the multi-functional automatic digital display hardness-testing device of medicine.

Advantage of the present utility model and good effect are: 1. the automatic transmission when realizing the traditional Chinese medicine pill hardness test, avoided the manual instability and the inhomogeneous deviation that causes test result of exerting oneself.2. traditional Chinese medicine pill hardness test result shows automatically with numeral, and effect is directly perceived.3. operation is very simple, quick, accurate.4. volume is little, and is easy to use, can realize a multi-purpose instrument.

Fig. 1 is a complete machine structure synoptic diagram of the present utility model.

Fig. 2 is circuit theory diagrams of the present utility model.

Describe characteristics of the present utility model and enforcement in detail below in conjunction with accompanying drawing.

Referring to Fig. 1, show the utility model complete machine mechanical transmission structure synoptic diagram.The utility model mechanical driving part is to construct like this, hardness digital indicator 2 and rise and fall switch 3 and switch pilot lamp 4 are installed in shell 1 front, motor 5 is installed in the shell 1, supporting tray 6 is fixed on elevating lever 7 tops and elevating lever 7 becomes one, move up and down jointly, elevating lever 7 retrains with vertical trapezoidal flute and trapezoidal bolt 19 mutually with outer tube 8, make elevating lever 7 can be in outer tube 8 free lifting, outer tube 8 can be installed in the top of shell 1, elevating lever 7 belows are connected with screw mandrel 9 spiral positioning, fixedly connected with the central shaft position of speed gear 10 and become one in screw mandrel 9 bottoms, speed gear 11 on 5 in speed gear 10 and the motor is meshed, simultaneously, speed gear 10 again with the bearing seat 12 that is fixed on shell 1 bottom surface on bearing 18 fix speed gear 10,11 and motor 4 constituted variable transmission mechanism.Above pallet 6 coaxial cables, be fixed on the shell 1 by support 13, also have sensor 14 and the sensor pressing plate 15 that links to each other with 14 pressure heads of sensor, at sensor pressing plate 15 edges, a position indicator pointer 16 that is used to indicate distance between pallet 6 and the extension bar 15 can also be installed, and sensor 14 links to each other with display 2 with display circuit by analog to digital conversion.

During use, energized is pressed and is risen or decline switch 3, motor 5 drives speed gear 10,11, and screw mandrel 9 is rotated, and then the sample pallet 6 that promotes on the elevating lever 7 rises, sample on pallet 6 contacts with sensor pressing plate 15, and continuation promotion pressing plate 15 rises to certain distance; Stop motor 5 and rotate, at this moment, on charactron 2, promptly show numerical value, and this numerical value is latched a period of time then be the hardness of tester.If connect printer interface, then hardness numerical value can be printed.Test finishes, and presses the decline switch, makes the motor counter-rotating and makes pallet 6 repositions.The numerical value that shows on the charactron indicator 2, unit is a kgf, standard measure of quantity is newton.When adopting the Kilogram Force Per Square Centimeter pressure transducer as sensor 14, when replacing pressing plate 15 with the less pressure head of contact area, the hardness number of representing with Kilogram Force Per Square Centimeter that this device can be measured sample can realize the hardness test of multiple medicine.

Fig. 2 shows the utility model circuit for controlling motor and digital display circuit schematic diagram.Motor m is a clockwise and anticlockwise motor among the figure, work as energized, and press positive turn-off and close K3, motor rotates, by mechanical transmission mechanism sample is risen to pressing plate 15 and contact, when pressing reversal switch K4, the motor backward rotation, make the sample pallet return the bottom by mechanical transmission mechanism, sample and pressing plate 15 disengage.Reference power supply input terminal R, the B of pressure transducer 14 links to each other with ground wire with the output terminal of three-terminal voltage-stabilizing power supply U1 respectively, and it is in parallel with resistance R w, think that pressure transducer 14 provides reference voltage, its lead-out terminal Y, W show that with decoding input end IN+, the IN-of integrated circuit U 3 are connected, wherein the Y terminal links to each other with the adjustable terminal of adjustable resistance Rw, U1 can select 7806 three-terminal voltage-stabilizing power supplys for use in the present embodiment, and U2 can select 7809 stabilized voltage supplys for use, and U3 can select for use UP316 decoding to show integrated circuit.

For different tested medicines, more emat sensor pressing plate 15 is the probe (figure part omitted) of garden cylindricality, and its contact area is smaller than pressing plate 15, for example can be designed as the unit area size.

Claims

1, the multi-functional automatic digital display hardness-testing device of medicine is characterized in that it by mechanical transmission mechanism and Electric Machine Control, and digital display circuit is formed; Wherein mechanical transmission mechanism is to construct like this, and it comprises pressure transducer 14 that is installed on the support 13 and the pressing plate 15 that links to each other with pressure transducer 14 pressure heads or probe; Be positioned at pressing plate 15 or probe below, supporting tray 6 with elevating lever 7 formation one, elevating lever 7 retrains with outer tube 8 mutually with trapezoidal groove and trapezoidal bolt 19, and, the bottom of elevating lever 7 is connected with screw mandrel 9 spirals at speed gear 10 centers, bearing 18 fits on the bearing seat 12 of speed gear 10 and shell 1 bottom surface, and be meshed with speed gear 11 on 5 of the reversible electric machines; Circuit for controlling motor comprises reversible electric machine m, and the terminal 1 of motor m and terminal 4 are connected in series with K switch 4, K3 respectively, and links to each other with power supply one end through K switch 3, K4, and the terminal 2,3 of motor m links to each other with the power supply another terminal; Digital display circuit comprises that input end links to each other with power supply, and output terminal shows that with decoding sensor 14 and decoding that integrated circuit U 3 links to each other show integrated circuit U 3.

2,, it is characterized in that pressing plate or 15 edges of popping one's head in also are fixed with a position indicator pointer 16 that is used to indicate distance by the multi-functional automatic digital display hardness-testing device of the described medicine of claim 1.

3, by the multi-functional automatic digital display hardness-testing device of the described medicine of claim 1, it is characterized in that the Y terminal of pressure transducer 14 links to each other with the scalable end of adjustable resistance Rw.