ABO blood type identification simulation teaching device

Abstract

An ABO blood type identification simulation teaching device uses a model A, a model B, a model AB and a model O to be combined with a label A and a label B to rapidly perform an experiment and rapidly obtain a blood type of a corresponding model, a telescopic part is started through a switch, and the telescopic part drives a verification ring to stretch out, so that students can rapidly verify own experiment results. And the understanding degree and teaching results of students are greatly improved. Meanwhile, the blood type result can be quickly obtained by utilizing the two labels and the suction positions of the first label seat and the second label seat corresponding to the shell, the simplest principle that like poles repel and opposite poles attract is utilized in the mode, the structure is simple, real and clear feedback can be given to an operator during use, and the experiment convenience is greatly improved. According to the utility model, the antigen-antibody reaction in a real blood environment is simulated, so that students or teachers can practice in the simulated environment, and the students or teachers are helped to better understand the actual operation and principle of blood type identification.

Description

Technical Field

[0001] The utility model relates to a teaching device for simulating blood type identification, in particular to an ABO blood type identification simulating teaching device. Background Art

[0002] Blood type is closely related to our lives. When studying the fourth section of the fourth unit of the seventh grade biology textbook of the People's Education Press, "Blood Transfusion and Blood Type", the textbook only used a few words to introduce the discovery of ABO blood type. There is no basis for ABO blood type typing, nor is there a method and process for identifying ABO blood type. In order to facilitate students to understand the above knowledge points. Although there are some teaching methods that use experimental reagents to simulate blood type identification, there are many problems, such as the price is too high and it is not suitable to purchase in large quantities. In addition, the experimental reagents are corrosive and there are safety hazards in use.

[0003] Therefore, how to provide a blood typing simulation teaching device that is easy to teach, understandable to students, and safe and convenient is a technical problem that needs to be solved urgently, but there is currently no such technology or product. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an ABO blood type identification simulation teaching device, which can simulate the detection of ABO blood type through two blood type labels and has a rapid verification function.

[0005] To achieve the above-mentioned purpose, the utility model provides an ABO blood type identification simulation teaching device, including a model, the model including a shell, a label holder, and a label, the label holder is installed on the shell, the shell is installed on a base, there are two label holders; there are two labels, namely, label A and label B; the blood type represented by the model is judged by the state of matching between label A, label B and the two label holders of the model, the matching state is that label A, label B are installed relative to the shell and the corresponding label holder on a side away from the shell and a side close to the shell;

[0006] The side where label A is away from the shell and label B is close to the shell represents type A blood, the side where label B is away from the shell and label A is close to the shell represents type B blood, the side where both label A and label B are close to the shell represents type AB blood, and the side where both label A and label B are away from the shell represents type O blood.

[0007] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, the label includes a label body, an identification plate, a conductive sheet, and a label magnet. The label body is made of insulating material. A label plate is also provided on the label body. A label magnet and a conductive sheet are respectively installed on the two end faces of the label plate. The conductive sheet is made of conductive material, and the label magnet has magnetism and conductivity.

[0008] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, an identification slot is provided on the label body, the identification plate is inserted into the identification slot and engaged therewith, and a pattern or text for identification is provided on the identification plate.

[0009] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, the label also includes a hanging buckle, which is arranged on one end of the label body and has a hanging buckle hole, and the hanging buckle hole is used to facilitate hanging the label.

[0010] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, there are four models, which are respectively an A model for simulating A type blood, a B model for simulating B type blood, an AB model for simulating AB type blood, and an O model for simulating O type blood;

[0011] In the A model, label B is sucked tightly on the side close to the shell and label A is sucked tightly on the side away from the shell. In the B model, label A is sucked tightly on the side close to the shell and label B is sucked tightly on the side away from the shell. In the AB model, both label A and label B are sucked tightly on the side of the shell. In the O model, both label A and label B are predicted to be sucked tightly away from the shell.

[0012] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, the label seat includes a first label seat and a second label seat, the two label seats of the A model are respectively the first label seat and the second label seat, the two label seats of the B model are respectively the first label seat and the second label seat, the two label seats of the AB model are both the first label seat, and the two label seats of the O model are both the second label seat.

[0013] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, a first seat groove is provided on the first label seat, and a first magnet is installed on one end of the first label seat close to the shell;

[0014] The second label seat is provided with a second seat groove, and a second magnet is installed on one end of the second label seat away from the shell, and both the second magnet and the first magnet are magnetic.

[0015] As a further improvement of the ABO blood type identification simulation teaching device of the utility model:

[0016] For model A, the first magnet of the first label seat repels the label magnet of label A inserted into the first seat slot and attracts the label magnet of label B with the same polarity; the second magnet of the second label seat repels the label magnet of label B in the second seat slot and attracts the label magnet of label A with the opposite polarity;

[0017] For model B, the first magnet of its first label seat is attracted to the label magnet of label A inserted into the first seat slot by opposite polarity and repels the label magnet of label B by the same polarity; the second magnet of its second label seat is attracted to the label magnet of label B in the second seat slot by opposite polarity and repels the label magnet of label A by the same polarity;

[0018] For the AB model, the first magnets of the two first label seats are attracted to the label magnets of label A and label magnets of label B inserted into the first seat slot respectively by opposite polarities;

[0019] For the O model, the second magnets of the two second label seats are attracted to the label magnet of label A and the label magnet of label B inserted into the second seat groove respectively by opposite polarities.

[0020] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, it also includes a telescopic part, which is installed in the shell, and a catheter is also installed on the shell. The telescopic part is installed on the partition, and a verification ring is installed on the telescopic shaft of the telescopic part; in the initial state, the verification ring does not pass through the catheter;

[0021] A first contact is installed on the inner wall of the first seat groove near the first magnet, and the first contact is conductively connected to one end of the first wire; a second contact is installed on the inner wall of the second seat groove near the second magnet, and the second contact is conductively connected to one end of the second wire; there are two first contacts and two second contacts on the first label seat and the second label seat respectively; the two label seats respectively select one contact to be electrically connected, and the other contact of one of the label seats is electrically connected to the first power terminal of the switch, and the second power terminal of the switch is electrically connected to the first power terminal of the power supply through the wire, and the second power terminal of the power supply is electrically connected to the second power terminal of the telescopic part; the switch is used to control the electrical connection or disconnection of the first power terminal and the second power terminal, and the switch is installed on the shell;

[0022] When the tag is tightly attracted to the second magnet of the second tag seat, its conductive sheet contacts or / and is pressed against the two second contacts respectively so that the two second contacts are electrically connected through the conductive sheet; when the tag is tightly attracted to the first magnet of the first tag seat, its tag magnet contacts or / and is pressed against the two first contacts respectively so that the two first contacts are electrically connected through the conductive sheet.

[0023] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, one of the first contacts of the A model is electrically connected to the second wire of one of the second contacts through the corresponding first wire, another first contact is electrically connected to the first power terminal of the telescopic part through the first wire, another second contact is electrically connected to the first power terminal of the switch through the second wire, the second power terminal of the switch is electrically connected to the first power terminal of the power supply through the wire, and the second power terminal of the power supply is electrically connected to the second power terminal of the telescopic part; the switch is used to control the electrical connection or disconnection of the first power terminal and the second power terminal, and the switch is installed on the housing;

[0024] One of the first contacts of the B model is electrically connected to the second wire of one of the second contacts through the corresponding first wire, another first contact is electrically connected to the first power terminal of the telescopic part through the first wire, another second contact is electrically connected to the first power terminal of the switch through the second wire, the second power terminal of the switch is electrically connected to the first power terminal of the power source through the wire, and the second power terminal of the power source is electrically connected to the second power terminal of the telescopic part; the switch is used to control the electrical connection or disconnection of the first power terminal and the second power terminal, and the switch is mounted on the housing;

[0025] One of the first contacts of one of the first tag seats of the AB model is electrically connected to one of the first contacts of another first tag seat through a corresponding first wire, and another first contact of the first tag seat is electrically connected to the first power terminal of the telescopic part through a corresponding first wire, another first contact of the other first tag seat is electrically connected to the first power terminal of the switch through a corresponding first wire, the second power terminal of the switch is electrically connected to the first power terminal of the power source through a wire, and the second power terminal of the power source is electrically connected to the second power terminal of the telescopic part; the switch is used to control the electrical connection or disconnection of the first power terminal and the second power terminal, and the switch is mounted on the housing;

[0026] One of the second contacts of one of the second label seats of the O model is electrically connected to one of the second contacts of the other second label seats through a corresponding second wire, and the other second contact of this second label seat is electrically connected to the first power connection end of the telescopic part through a corresponding second wire, and the other second contact of the other second label seat is electrically connected to the first power connection end of the switch through a corresponding second wire, the second power connection end of the switch is electrically connected to the first power connection end of the power supply through a wire, and the second power connection end of the power supply is electrically connected to the second power connection end of the telescopic part; the switch is used to control the electrical connection or disconnection of its first power connection end and the second power connection end, and the switch is installed on the housing.

[0027] As a further improvement of the ABO blood type identification simulation teaching device of the utility model, a plug-in platform is also provided on one end of the label on which the conductive sheet is installed, a first socket is installed on the first label seat, a first jack is provided on the first socket, and two first contacts are both inserted into the first jack; the label magnet can be inserted into the first jack and contact the two first contacts for electrical conduction;

[0028] The second label seat is provided with a second socket, the second socket is provided with a second jack, and two second contacts respectively pass through the second socket; the second jack can be plugged and assembled with the plug-in station and at this time the conductive sheet is respectively conductively connected with the two second contacts.

[0029] The beneficial effects of the utility model are:

[0030] The utility model can quickly conduct experiments by using the A model, B model, AB model, and O model in combination with labels A and B, and quickly obtain the blood type of the corresponding model. At the same time, the telescopic part is activated by the switch, and the telescopic part drives the verification ring to extend so that students can quickly verify their own experimental results, greatly improving the students' understanding and teaching results. At the same time, the blood type result can be quickly obtained by using the two labels and the corresponding first label holder and second label holder relative to the suction position of the shell. This method uses the simplest principle of like repels like and opposites attract. It is not only simple in structure, but also gives the operator real and clear feedback when using it, greatly improving the convenience of the experiment.

[0031] The utility model simulates the antigen-antibody reaction in a real blood environment, allowing students or teachers to practice in a simulated environment, helping them to better understand the actual operation and principle of blood typing. At the same time, the utility model uses safe materials and will not cause any harm to students or teachers. The utility model has a long design life and can be reused. This can not only reduce teaching costs, but also reduce the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1-Figure 2 is a structural schematic diagram of embodiment 1;

[0033] Figure 3-Figure 5 is a schematic diagram of the structure of tag 300;

[0034] Figure 6 is a schematic structural diagram of the first label holder 130;

[0035] Figure 7-Figure 8 is a schematic structural diagram of the second label holder 120;

[0036] Fig. 9 It is a cross-sectional view of the model at the center plane where the axis of the telescopic shaft 241 is located;

[0037] Fig.10 It is a cross-sectional view of the model at another center plane where the axis of the telescopic shaft 241 is located;

[0038] Figure 11-Figure 14 It is a schematic diagram of the structure of the telescopic part 240, the telescopic shaft 241, and the verification ring 400;

[0039] Fig.15 is a structural diagram of Embodiment 2;

[0040] Fig.16 This is a cross-sectional view of the second embodiment at the center plane where the axis of the telescopic shaft 241 is located;

[0041] Fig.17 is a schematic diagram of the structure of the tag 300 in the third embodiment;

[0042] Fig.18 is a schematic structural diagram of the first label holder 130 in the third embodiment;

[0043] Fig.19 is a schematic structural diagram of the second label holder 120 in the third embodiment;

[0044] Fig. 20 It is a cross-sectional view of the second label holder 120 and the label 300 in the third embodiment, located at the center plane where the axis of the second plug hole 1231 is located;

[0045] Fig.21 It is a cross-sectional view of the first label seat 130 and the label 300 in the third embodiment, located at the center plane where the axis of the first plug hole 1331 is located;

[0046] Fig. 22 Schematic diagram of magnet states of label A, label B, A model, B model, AB model, and O model, where S and N represent the south pole and north pole of the magnet respectively;

[0047] Fig.23 The schematic diagrams of the four models are shown in Figure 2. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1

[0049] See also Figure 1-Figure 2 The ABO blood type identification simulation teaching device of this embodiment includes four models and a base 520. The four models are all installed on the base 520. The four models are used to simulate type A blood, type B blood, type AB blood, and type O blood, respectively. In this embodiment, they are named A model, B model, AB model, and O model respectively.

[0050] See also Figure 1-Figure 10 The model includes a shell 100, a telescopic part 240, a label holder, and a label 300. The label holder is installed on the shell 100, and the shell 100 is installed on the base 520. The label holder includes a first label holder 130 and a second label holder 120. The first label holder 130 is provided with a first seat groove 131, and a first magnet 132 is installed on one end of the first label holder 130 close to the shell 100. A first contact 230 is installed on the inner wall of the first seat groove 131 close to the first magnet 132, and the first contact 230 is conductively connected to one end of the first wire 231.

[0051] The second label holder 120 is provided with a second seat groove 121, a second magnet 122 is installed on one end of the second label holder 120 away from the housing 100, a second contact 220 is installed on the inner wall of the second seat groove 121 close to the second magnet 122, and the second contact 220 is conductively connected to one end of the second wire 221. Both the second magnet 122 and the first magnet 132 are magnetic.

[0052] The label 300 includes a label body 310, a hanging buckle 320, an identification plate 330, a conductive sheet 340, and a label magnet 350. The label body 310 is made of insulating material. The hanging buckle 320 is arranged on one end of the label body 310 and is provided with a hanging buckle hole 321, and the hanging buckle hole 321 is used to facilitate hanging the label 300. The label body 310 is also provided with a label plate 311, and the two end surfaces of the label plate 311 are respectively installed with a label magnet 350 and a conductive sheet 340. The conductive sheet 340 is made of conductive material, such as copper, aluminum, iron, etc., and the label magnet 350 has magnetism and conductivity.

[0053] The label body 310 is provided with an identification slot 312, and the identification plate 330 is inserted into the identification slot 312 and engaged therewith, and a pattern or text for identification is provided on the identification plate 330. In this embodiment, there are two labels 300, and the identification plates 330 of the two labels 300 are provided with A and B respectively, which are respectively named as label A and label B in this embodiment, wherein label A represents standard type A serum and label B represents standard type B serum.

[0054] The two label seats of the A model are respectively the first label seat 130 and the second label seat 120 , the two label seats of the B model are respectively the first label seat 130 and the second label seat 120 , the two label seats of the AB model are both the first label seat 130 , and the two label seats of the O model are both the second label seat 120 .

[0055] For model A: the first magnet 132 of its first label seat 130 repels the label magnet 350 of label A inserted in the first seat groove 131 with the same polarity and attracts the label magnet 350 of label B with the opposite polarity; the second magnet 122 of its second label seat 120 repels the label magnet of label B in the second seat groove 121 with the same polarity and attracts the label magnet 350 of label A with the opposite polarity.

[0056] For model B: the first magnet 132 of its first label seat 130 is attracted to the label magnet 350 of label A inserted in the first seat groove 131 by opposite polarities and repels the label magnet 350 of label B by the same polarity; the second magnet 122 of its second label seat 120 is attracted to the label magnet of label B in the second seat groove 121 by opposite polarities and repels the label magnet 350 of label A by the same polarity.

[0057] For the AB model: the first magnets 132 of the two first label seats 130 are attracted by opposite polarities to the label magnets 350 of label A and the label magnets 350 of label B inserted into the first seat groove 131 .

[0058] For the O model: the second magnets 122 of the two second label seats 120 are attracted by opposite polarities to the label magnets 350 of label A and label magnets 350 of label B inserted into the second seat groove 121 .

[0059] See also Fig. 22 The polarity of the label magnet 350 of label A is opposite to that of the label magnet 350 of label B, the polarity of the first magnet 132 in the B model is opposite to that of the first magnet 132 in the A model, and the polarity of the second magnet 122 in the B model is opposite to that of the second magnet 122 in the A model. This makes it possible for the label magnet of label A to be tightly attached to the second magnet 132 in the A model but not to be tightly attached to the first magnet 122 in the A model, while the label magnet of label B cannot be tightly attached to the second magnet 122 in the A model but can be tightly attached to the first magnet in the A model.

[0060] In the B model, it is just the opposite of the A model. The label A cannot be tightly attached to the second magnet 132 but can be tightly attached to the first magnet 122, and the label B can be tightly attached to the second magnet 132 but cannot be tightly attached to the first magnet 122. This makes the tightening positions of the labels A and B in the corresponding first label seat 130 and second label seat 120 in the A model and the B model different (located above or below the first seat groove 131 and the second seat groove 121).

[0061] The first magnets 132 of the two first label holders 130 of the AB model have opposite polarities, so that they can be tightly attracted to the label magnet 350 of label A and the label magnet 350 of label B at the same time.

[0062] The second magnets 122 of the two second label holders 120 of the O model have opposite polarities, so they can be tightly attracted to the label magnet 350 of label A and the label magnet 350 of label B at the same time.

[0063] See also Fig.23There are two first contacts 230 and two second contacts 220 on the first label holder 130 and the second label holder 120 respectively; one of the first contacts 230 of the A model is electrically connected to the second wire 221 of one of the second contacts 220 through the corresponding first wire 231, the other first contact 230 is electrically connected to the first power terminal of the telescopic part 240 through the first wire 231, the other second contact 220 is electrically connected to the first power terminal of the switch 210 through the second wire 221, the second power terminal of the switch 210 is electrically connected to the first power terminal of the power supply through a wire, the second power terminal of the power supply is electrically connected to the second power terminal of the telescopic part 240, and the first power terminal and the second power terminal of the power supply are respectively the positive and negative poles thereof; the switch 210 is used to control the electrical connection or disconnection of the first power terminal and the second power terminal thereof, and the switch 210 is installed on the housing 100.

[0064] One of the first contacts 230 of the B model is electrically connected to the second wire 221 of one of the second contacts 220 through the corresponding first wire 231, the other first contact 230 is electrically connected to the first power connection end of the telescopic part 240 through the first wire 231, the other second contact 220 is electrically connected to the first power connection end of the switch 210 through the second wire 221, the second power connection end of the switch 210 is electrically connected to the first power connection end of the power supply through a wire, the second power connection end of the power supply is electrically connected to the second power connection end of the telescopic part 240, the first power connection end and the second power connection end of the power supply are respectively the positive and negative poles thereof; the switch 210 is used to control the electrical connection or disconnection of the first power connection end and the second power connection end thereof, and the switch 210 is installed on the housing 100.

[0065] One of the first contacts 230 of one of the first tag seats 130 of the AB model is electrically connected to one of the first contacts 230 of another first tag seat 130 through a corresponding first wire 231, and the other first contact 230 of this first tag seat 130 is electrically connected to the first power connection end of the telescopic part 240 through the corresponding first wire 231, and the other first contact 230 of the other first tag seat 130 is electrically connected to the first power connection end of the switch 210 through the corresponding first wire 231, the second power connection end of the switch 210 is electrically connected to the first power connection end of the power supply through a wire, and the second power connection end of the power supply is electrically connected to the second power connection end of the telescopic part 240, and the first power connection end and the second power connection end of the power supply are respectively its positive and negative poles; the switch 210 is used to control the electrical connection or disconnection of its first power connection end and the second power connection end, and the switch 210 is installed on the housing 100.

[0066] One of the second contacts 220 of one of the second tag seats 120 of the O model is electrically connected to one of the second contacts 220 of another second tag seat 120 through a corresponding second wire 221, and another second contact 220 of this second tag seat 120 is electrically connected to the first power connection end of the telescopic part 240 through the corresponding second wire 221, and another second contact 220 of another second tag seat 120 is electrically connected to the first power connection end of the switch 210 through the corresponding second wire 221, and the second power connection end of the switch 210 is electrically connected to the first power connection end of the power supply through a wire, and the second power connection end of the power supply is electrically connected to the second power connection end of the telescopic part 240, and the first power connection end and the second power connection end of the power supply are respectively its positive and negative poles; the switch 210 is used to control the electrical connection or disconnection of its first power connection end and the second power connection end, and the switch 210 is installed on the housing 100.

[0067] The shell 100 is hollow inside and a partition 101 is installed inside. A conduit 102 is also installed on the shell 100. A telescopic part 240 is installed on the partition 101. A verification ring 400 is installed on the telescopic shaft 241 of the telescopic part 240. In the initial state, the verification ring 400 does not pass through the conduit 102. After the telescopic part 240 is started, it can drive the telescopic shaft 241 to axially extend and retract, thereby driving the verification ring 400 to extend out of the conduit 102 for easy observation or retract into the conduit 102 to avoid being observed.

[0068] See also Figure 22-Figure 23 When the tag A and the tag B are tightly attracted to the first magnet 132, the tag magnets of the tag A and the tag B are electrically connected to the corresponding two first contacts, thereby conducting the two first contacts. When the tag A and the tag B are tightly attracted to the second magnet 122, the conductive sheets of the tag A and the tag B are electrically connected to the corresponding two second contacts, thereby conducting the two second contacts.

[0069] Preferably, the telescopic part 240 is a telescopic electromagnet, and a spring ring 242 is provided on the telescopic shaft 241 thereof. The part of the telescopic shaft 241 between the spring ring 242 and the outer shell of the telescopic part 240 is respectively assembled with the two ends of the spring 510, and the spring 510 applies an elastic force to the telescopic shaft 241 to pull the inside of the telescopic part 240, so that the telescopic shaft 241 does not pass through the corresponding conduit 102 in the initial state. Of course, the telescopic part 240 is not limited to an electromagnet, and in theory, any device that can drive the telescopic shaft to axially extend and retract is acceptable, such as a pneumatic cylinder, an oil cylinder, an electric cylinder, a push rod motor, a linear motor, etc.

[0070] See also Figure 1-Figure 23 , the usage process of this implementation is as follows:

[0071] S100, Operation A Model

[0072] S110. First, assume that model A is facing the operator. Insert label A into the first seat groove 121. The label magnet 350 of label A and the first magnet 122 repel each other with the same polarity, so that one end of the conductive sheet 340 cannot be tightly attached to the two second contacts 220. Then insert label A into the second seat groove 131. The label magnet 350 of label A and the second magnet 132 attract each other with the opposite polarity, so that the two second contacts 220 are conductively connected through the conductive sheet 340.

[0073] S120, then insert the tag B into the first seat groove 121, the tag magnet 350 of the tag B and the first magnet 122 are attracted to each other by opposite polarities, so that the two first contacts are pressed and electrically connected with the tag magnet 350 respectively.

[0074] S130, then the switch 210 can be pressed, and after the switch is pressed, the current of the power supply is connected to the telescopic part 240, and after the telescopic part 240 is powered on, the telescopic shaft 241 is extended, so that the corresponding verification ring 400 passes through the catheter 102 and can be observed by the operator to verify the operator's experimental results ( Fig.11 state), and then the telescopic shaft 241 retracts and resets.

[0075] S200, Operation B Model

[0076] S210, first insert label A into the first seat groove 131. At this time, due to the attraction between opposite poles (the first magnet 132 and the label magnet 350 of label A are opposite to each other), the label magnet 350 and the first magnet 132 are attracted to each other, and label A is sucked tightly into the first seat groove 131, and the label magnet of label A is electrically connected to the two first contacts respectively.

[0077] S220, label B is inserted into the second seat groove 121. Due to the attraction between opposite poles, label B is tightly attached to the second seat groove 121 and the two second contacts 220 are conductively connected through the conductive sheet. At this time, the states of label A and label B on the A model are exactly opposite to those on the B model, that is, when on the A model, label B is tightly attached to the side close to the housing 100, and label A is tightly attached to the side away from the housing 100; while when on the B model, label B is tightly attached to the side away from the housing 100, and label A is tightly attached to the side close to the housing 100, so that it can be judged that the blood type is B.

[0078] S230, then the switch 210 can be pressed, and after the switch is pressed, the current of the power supply is connected to the telescopic part 240, and after the telescopic part 240 is powered on, the telescopic shaft 241 is extended, so that the corresponding verification ring 400 passes through the catheter 102 and can be observed by the operator to verify the operator's experimental results ( Fig.12 state), and then the telescopic shaft 241 retracts and resets.

[0079] S300, Operation AB Model

[0080] S310, inserting the label A into the first seat groove 131, at this time, due to the attraction between opposite poles, the label A is sucked to the side close to the housing 100, and the label magnet 350 of the label A contacts the two first contacts 230 for electrical conduction.

[0081] S320, insert the tag B into the other first seat groove 131. At this time, due to the attraction between opposite poles, the tag B is tightly attracted to the side close to the housing 100, and the tag magnet 350 of the tag B contacts and conducts electricity with the two first contacts 230. At this time, since both the tag A and the tag B are tightly attracted to the end close to the housing, it is determined that the blood type is AB.

[0082] S330, then the switch 210 can be pressed, and after the switch is pressed, the current of the power supply is connected to the telescopic part 240, and after the telescopic part 240 is powered on, the telescopic shaft 241 is extended, so that the corresponding verification ring 400 passes through the catheter 102 and can be observed by the operator to verify the operator's experimental results ( Fig.13 state), and then the telescopic shaft 241 retracts and resets.

[0083] S400, Operation O Model

[0084] S410, inserting the label A into the second seat groove 121, at this time, due to the attraction between opposite poles, the label A is sucked to the side away from the housing 100, and the label magnet 350 of the label A contacts the two second contacts 220 for electrical conduction.

[0085] S420, insert the tag B into the other second seat groove 121. At this time, due to the attraction between opposite poles, the tag B is sucked to the side away from the housing 100, and the tag magnet 350 of the tag B contacts and conducts electricity with the two second contacts 220. At this time, since both the tag A and the tag B are sucked to the end close to the housing, it is determined that the blood type is O type.

[0086] S430, then the switch 210 can be pressed, and after the switch is pressed, the current of the power supply is connected to the telescopic part 240, and after the telescopic part 240 is powered on, the telescopic shaft 241 is extended, so that the corresponding verification ring 400 passes through the catheter 102 and can be observed by the operator to verify the operator's experimental results ( Fig.14 state), and then the telescopic shaft 241 retracts and resets.

[0087] In fact, the label that can be sucked to one side of the shell represents that the shell has the blood type agglutination of the cover label, and the label that is sucked away from the shell represents that the shell has the factor of the labeled blood type. Therefore, through the label A and label B, the following can be combined respectively: B but no A is A type blood, A but no B is B type blood, A and B are AB type blood, and no A and B are O type blood. This method is not only very simple to operate, but also the results are very direct and convenient to observe. It also has a verification function, which allows students to quickly verify whether the results of their tests are correct.

[0088] In this embodiment, the power supply is used to provide electrical energy, and may be an electromagnetic, AC-DC module, etc. Theoretically, any power supply can be used as long as it can provide qualified electrical energy. Embodiment 2

[0089] See also Figure 15-16 The difference between this embodiment and the first embodiment is that the base 520 is provided with a rotatable function. Since the position of the operator is fixed during the experiment, the base 520 can be rotated so that the four model modules are respectively facing the operator to facilitate the operator's experiment. Specifically:

[0090] The base 520 is provided with a rotating shaft 521, which is inserted into a rotating shaft hole 531. The rotating shaft hole 531 is provided on a fixing seat 530, and the fixing seat 530 is fixed relative to the ground. When in use, the fixing seat 530 supports the base 520 in the axial direction of the rotating shaft 521, and the base 520 can rotate relative to the fixing seat 530 through the rotating shaft 521. Embodiment 3

[0091] See also Figure 17-Figure 21 The difference between this embodiment and the first embodiment is that the label 300, the first label holder 130, and the second label holder 120 are optimized respectively, specifically:

[0092] The end of the tag 300 on which the conductive sheet 340 is installed is also provided with a docking station 360, the first tag seat 130 is provided with a first socket 133, the first socket 133 is provided with a first plug hole 1331, and the two first contacts 230 are both inserted into the first plug hole 1331; the tag magnet 350 can be inserted into the first plug hole 1331 and contact the two first contacts 230 for electrical conduction.

[0093] The second label holder 120 is provided with a second socket 123 , and the second socket 123 is provided with a second plug hole 1231 , and the two second contacts 220 respectively pass through the second socket 123 ; the second plug hole 1231 can be plugged and assembled with the docking station 360 and at this time the conductive sheet 340 is conductively connected to the two second contacts 220 respectively.

[0094] This design is mainly to increase the stability of the assembly between the label and the first label holder 130 and the second label holder 120, thereby improving the convenience and success rate of the experiment.

[0095] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0096] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0097] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0098] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0099] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0100] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A simulation teaching device for ABO blood typing, characterized in that: The model includes a shell, a label holder, and a label. The label holder is mounted on the shell, and the shell is mounted on a base. There are two label holders. There are two labels, namely, label A and label B. The blood type represented by the model is judged by the matching state of label A, label B and the two label holders of the model. The matching state is that label A, label B are mounted on the side away from the shell or on the side close to the shell relative to the corresponding label holder. The side where label A is away from the shell and label B is close to the shell represents type A blood, the side where label B is away from the shell and label A is close to the shell represents type B blood, the side where both label A and label B are close to the shell represents type AB blood, and the side where both label A and label B are away from the shell represents type O blood.

2. The ABO blood type identification simulation teaching device according to claim 1, characterized in that: The label comprises a label body and a label magnet. The label body is provided with a label plate. A label magnet is installed on one end surface of the label plate. The label magnet has magnetism and conductivity.

3. The ABO blood type identification simulation teaching device according to claim 2, characterized in that: The label also includes a conductive sheet. The two end surfaces of the label plate are respectively provided with a label magnet and a conductive sheet, and the conductive sheet is made of conductive material.

4. The ABO blood typing simulation teaching device according to any one of claims 1 to 3, characterized in that: There are four models, namely, the A model for simulating type A blood, the B model for simulating type B blood, the AB model for simulating type AB blood, and the O model for simulating type O blood; In the A model, label B is sucked tightly on the side close to the shell and label A is sucked tightly on the side away from the shell. In the B model, label A is sucked tightly on the side close to the shell and label B is sucked tightly on the side away from the shell. In the AB model, both label A and label B are sucked tightly on the side of the shell. In the O model, both label A and label B are predicted to be sucked tightly away from the shell.

5. The ABO blood type identification simulation teaching device according to claim 4, characterized in that: The label seat includes a first label seat and a second label seat. The two label seats of the A model are respectively the first label seat and the second label seat. The two label seats of the B model are respectively the first label seat and the second label seat. The two label seats of the AB model are both the first label seat. The two label seats of the O model are both the second label seat.

6. The ABO blood type identification simulation teaching device according to claim 5, characterized in that: The first label seat is provided with a first seat groove, and a first magnet is installed on one end of the first label seat close to the housing; The second label seat is provided with a second seat groove, and a second magnet is installed on one end of the second label seat away from the shell, and both the second magnet and the first magnet are magnetic.

7. The ABO blood type identification simulation teaching device according to claim 6, characterized in that: For model A, the first magnet of the first label seat repels the label magnet of label A inserted into the first seat slot and attracts the label magnet of label B with the same polarity; the second magnet of the second label seat repels the label magnet of label B in the second seat slot and attracts the label magnet of label A with the opposite polarity; For model B, the first magnet of its first label seat is attracted to the label magnet of label A inserted into the first seat slot by opposite polarity and repels the label magnet of label B by the same polarity; the second magnet of its second label seat is attracted to the label magnet of label B in the second seat slot by opposite polarity and repels the label magnet of label A by the same polarity; For the AB model, the first magnets of the two first label seats are attracted to the label magnets of label A and label magnets of label B inserted into the first seat slot respectively by opposite polarities; For the O model, the second magnets of the two second label seats are attracted by opposite polarities to the label magnet of label A and the label magnet of label B inserted into the second seat groove.

8. The ABO blood type identification simulation teaching device according to claim 6 or 7, characterized in that: The invention also includes a telescopic part, which is installed in the shell, and a catheter is also installed on the shell. The shell is hollow inside and a partition is installed inside. The telescopic part is installed on the partition. A verification ring is installed on the telescopic shaft of the telescopic part. The verification ring is provided with a blood type pattern or text representing the corresponding model. In the initial state, the verification ring does not pass through the catheter. A first contact is installed on the inner wall of the first seat groove near the first magnet, and the first contact is conductively connected to one end of the first wire; a second contact is installed on the inner wall of the second seat groove near the second magnet, and the second contact is conductively connected to one end of the second wire; there are two first contacts and two second contacts on the first label seat and the second label seat respectively; the two label seats respectively select one contact to be electrically connected, and the other contact of one of the label seats is electrically connected to the first power terminal of the switch, and the second power terminal of the switch is electrically connected to the first power terminal of the power supply through the wire, and the second power terminal of the power supply is electrically connected to the second power terminal of the telescopic part; the switch is used to control the electrical connection or disconnection of the first power terminal and the second power terminal, and the switch is installed on the shell; When the tag is tightly attracted to the second magnet of the second tag seat, the conductive sheet of the tag contacts or / and is pressed against the two second contacts respectively so that the two second contacts are electrically connected through the conductive sheet; when the tag is tightly attracted to the first magnet of the first tag seat, its tag magnet contacts or / and is pressed against the two first contacts respectively so that the two first contacts are electrically connected through the conductive sheet.

9. The ABO blood type identification simulation teaching device according to claim 8, characterized in that: One of the first contacts of the A model is electrically connected to the second wire of one of the second contacts through the corresponding first wire, another first contact is electrically connected to the first power terminal of the telescopic part through the first wire, another second contact is electrically connected to the first power terminal of the switch through the second wire, the second power terminal of the switch is electrically connected to the first power terminal of the power source through the wire, and the second power terminal of the power source is electrically connected to the second power terminal of the telescopic part; One of the first contacts of the B model is electrically connected to the second wire of one of the second contacts through the corresponding first wire, another first contact is electrically connected to the first power connection end of the telescopic part through the first wire, another second contact is electrically connected to the first power connection end of the switch through the second wire, the second power connection end of the switch is electrically connected to the first power connection end of the power supply through the wire, and the second power connection end of the power supply is electrically connected to the second power connection end of the telescopic part; One of the first contacts of one of the first tag seats of the AB model is electrically connected to one of the first contacts of another first tag seat through a corresponding first wire, and another first contact of the first tag seat is electrically connected to the first power terminal of the telescopic portion through a corresponding first wire, another first contact of the other first tag seat is electrically connected to the first power terminal of the switch through a corresponding first wire, the second power terminal of the switch is electrically connected to the first power terminal of the power supply through a wire, and the second power terminal of the power supply is electrically connected to the second power terminal of the telescopic portion; One of the second contacts of one of the second tag seats of the O model is electrically connected to one of the second contacts of the other second tag seats through a corresponding second wire, and another second contact of this second tag seat is electrically connected to the first power connection end of the telescopic part through a corresponding second wire, another second contact of another second tag seat is electrically connected to the first power connection end of the switch through a corresponding second wire, the second power connection end of the switch is electrically connected to the first power connection end of the power supply through a wire, and the second power connection end of the power supply is electrically connected to the second power connection end of the telescopic part.

10. The ABO blood type identification simulation teaching device according to claim 9, characterized in that: The end of the tag with the conductive sheet is also provided with a plug-in platform, the first tag seat is provided with a first socket, the first socket is provided with a first plug hole, and the two first contacts are inserted into the first plug hole; the tag magnet can be inserted into the first plug hole and contact with the two first contacts for electrical conduction; The second label seat is provided with a second socket, the second socket is provided with a second jack, and two second contacts respectively pass through the second socket; the second jack can be plugged and assembled with the plug-in station and at this time the conductive sheet is respectively conductively connected with the two second contacts.

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