Experimental device for simulating pH stability of organism

Abstract

The utility model relates to an experiment device for simulating organism pH stability, which comprises a medicament bottle, a magnetic stirrer, a test bottle, a delivery pipe, a peristaltic pump and a ph sensor, the test bottle is arranged on the magnetic stirrer, the test bottle is communicated with the medicament bottle through the delivery pipe, and the ph sensor is arranged in a test cavity of the test bottle. The peristaltic pump drives the conveying pipe to convey the medicament in the medicament bottle into the test bottle, and the magnetic stirrer uniformly stirs the test material in the test cavity, so that the ph sensor can accurately and quickly measure the ph value of the test material, the influence of the original color of the test material is avoided, the test value is more accurate, and the test effect is good. Meanwhile, an operator can be prevented from being in contact with a test material, the test risk is effectively reduced, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching devices, in particular to an experimental device for simulating pH stability of a biological body. Background Art

[0002] The experiment of "simulating organisms maintaining pH stability" is selected from Chapter 1, Section 2 "Homeostasis of the Internal Environment" of the People's Education Press's high school biology elective compulsory course "Homeostasis and Regulation" (2019). Students observe the changes in pH of tap water, buffer solution and liver homogenate after quantitative addition of acid or alkali, and infer how organisms maintain pH stability. This experiment can cultivate students' inquiry and practical ability, enrich students' perceptual knowledge, and exercise their thinking ability. It plays a very important role in helping students form the concept of homeostasis and establish the concept of life. It is a good material for implementing the core literacy of biology.

[0003] The existing experimental device for simulating the stability of pH in biological bodies uses pH test paper to detect the pH value of the test material. However, the detection is easily disturbed by the original color of the test material, resulting in value deviation and affecting the experimental effect. Utility Model Content

[0004] Based on this, it is necessary to provide an experimental device for simulating pH stability of organisms.

[0005] The utility model solves the above technical problems with the following technical solutions: an experimental device for simulating pH stability of an organism, comprising: a medicine bottle, a magnetic stirrer, a test bottle, a delivery tube, a peristaltic pump and a pH sensor;

[0006] The medicine bottle and the magnetic stirrer are arranged at intervals;

[0007] The test bottle is arranged on the magnetic stirrer, a test cavity is provided in the test bottle, a first end of the delivery tube is connected to the medicine bottle, a second end of the delivery tube is connected to the test cavity, and the peristaltic pump is drivingly connected to the delivery tube;

[0008] The pH sensor is arranged in the test chamber.

[0009] In one embodiment, the experimental device for simulating the pH stability of an organism also includes: a back plate, the peristaltic pump is arranged on the back plate, a fixed bracket is arranged on the back plate, the first end of the pH sensor is installed on the fixed bracket, and the second end of the pH sensor is located in the test chamber.

[0010] In one embodiment, the back plate is a magnetic back plate, a first magnetic block is disposed on the fixing bracket, a first surface of the first magnetic block is connected to the fixing bracket, and a second surface of the first magnetic block is magnetically connected to the magnetic back plate.

[0011] In one embodiment, a second magnetic block is disposed on the peristaltic pump, a first surface of the second magnetic block is connected to the peristaltic pump, and a second surface of the second magnetic block is magnetically connected to the magnetic back plate.

[0012] In one embodiment, the fixed bracket includes: a connecting rod, a first clamping block and a second clamping block, the first end of the connecting rod is connected to the first surface of the first magnetic block, the second end of the connecting rod is connected to the first end of the first clamping block, the second end of the first clamping block is rotatably connected to the first end of the second clamping block, the second end of the second clamping block is detachably connected to the first end of the first clamping block, the first clamping block is provided with a first mounting groove, the second clamping block is provided with a second mounting groove, the first mounting groove is connected to the second mounting groove to form a mounting through hole, and the first end of the ph sensor is fixed in the mounting through hole.

[0013] In one embodiment, the experimental device for simulating the pH stability of an organism also includes: a bolt and a nut, a first through hole is opened on the first end of the first clamping block, a second through hole is opened on the second end of the second clamping block, the first through hole is aligned with the second through hole, and the bolt passes through the first through hole and the second through hole in sequence and then is threadedly connected to the nut.

[0014] In one embodiment, the number of the medicine bottles, the magnetic stirrer, the test bottle, the delivery tube, the peristaltic pump and the pH sensor is set to two or more groups.

[0015] In one embodiment, the experimental device for simulating pH stability of an organism further includes: a controller, wherein the controller is electrically connected to the peristaltic pump.

[0016] In one embodiment, a first anti-slip layer is disposed on the side wall of the first mounting groove.

[0017] In one embodiment, a second anti-slip layer is disposed on the side wall of the second mounting groove.

[0018] The utility model has the following beneficial effects: the utility model provides an experimental device for simulating pH stability of an organism, by placing a test bottle on a magnetic stirrer, the test bottle is connected to a medicine bottle through a delivery tube, and a pH sensor is placed in a test cavity of the test bottle. When conducting an experiment, a peristaltic pump drives the delivery tube to deliver the medicine in the medicine bottle to the test bottle, and the magnetic stirrer stirs the test material in the test cavity evenly, so that the pH sensor can accurately and quickly measure the pH value of the test material, is not easily affected by the original color of the test material, and the test value is more accurate and the experimental effect is good. At the same time, it can avoid contact between the operator and the test material, effectively reducing the experimental risk and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of an experimental device for simulating pH stability of an organism according to an embodiment;

[0021] Figure 2 The figure is a schematic diagram of the structure of an experimental device for simulating pH stability of an organism according to an embodiment.

[0022] In the attached drawings, 10 is an experimental device for simulating pH stability of an organism; 100 is a medicine bottle; 200 is a magnetic stirrer; 300 is a test bottle; 310 is a test chamber; 400 is a delivery tube; 500 is a peristaltic pump; 600 is a pH sensor; 700 is a back plate; 800 is a fixed bracket; and 900 is a controller. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0024] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] In one embodiment, Figure 1 As shown, an experimental device 10 for simulating pH stability of an organism comprises: a medicine bottle 100, a magnetic stirrer 200, a test bottle 300, a delivery tube 400, a peristaltic pump 500 and a pH sensor 600; the medicine bottle 100 and the magnetic stirrer 200 are arranged at a distance; the test bottle 300 is arranged on the magnetic stirrer 200, a test cavity 310 is opened in the test bottle 300, a first end of the delivery tube 400 is connected to the medicine bottle 100, a second end of the delivery tube 400 is connected to the test cavity 310, the peristaltic pump 500 is drivingly connected to the delivery tube 400; the pH sensor 600 is arranged in the test cavity 310.

[0026] In this embodiment, the test bottle 300 is arranged on the magnetic stirrer 200. By placing the stirrer of the magnetic stirrer 200 in the test cavity 310 of the test bottle 300, the magnetic stirrer 200 generates a magnetic field to push the magnetic stirrer placed in the test bottle 300 to perform a circular motion, so that the test material in the test cavity 310 can be stirred. The test bottle 300 is connected to the medicine bottle 100 through the delivery tube 400, and the peristaltic pump 500 drives the delivery tube 400, that is, the peristaltic pump 500 is driven by By alternately squeezing and releasing the delivery tube 400, the delivery tube 400 continuously undergoes elastic deformation, which can form a negative pressure in the delivery tube 400 to cause the medicine to flow and fill the delivery tube 400, so that the medicine in the medicine bottle 100 can be added to the test bottle 300. The medicine is an acidic solution or an alkaline solution, such as an HCl solution or a NaOH solution. The pH sensor 600 is arranged in the test cavity 310 of the test bottle 300, and the glass beads of the pH sensor 600 are immersed in the test material.

[0027] In this embodiment, when conducting an experiment, the peristaltic pump 500 drives the delivery tube 400 to deliver the medicine in the medicine bottle 100 to the test bottle 300, and the magnetic stirrer 200 stirs the test material in the test chamber 310 evenly. In this way, the pH sensor 600 can accurately and quickly measure the pH value of the test material, which is not easily affected by the original color of the test material. The test value is more accurate. By continuously adding medicine, the change of the pH value of the test material can be continuously measured, and the experimental effect is good. At the same time, stirring by the magnetic stirrer 200 and monitoring the pH value of the test material by the pH sensor 600 can avoid the operator from contacting with the medicine and the test material, effectively reducing the experimental risk and having high safety.

[0028] In one embodiment, Figure 2 As shown, the number of the medicine bottle 100, the magnetic stirrer 200, the test bottle 300, the delivery tube 400, the peristaltic pump 500 and the pH sensor 600 is set to two or more groups. Specifically, by setting the number to two or more groups, each peristaltic pump 500 and each pH sensor 600 works synchronously, and the pH value of different test materials can be detected synchronously, that is, the pH change of tap water, buffer solution and liver homogenate after quantitative addition of acid or alkali can be observed synchronously, which can simplify the operation and shorten the experimental time.

[0029] In one embodiment, Figure 1 As shown, the experimental device 10 for simulating pH stability of an organism further includes: a controller 900, and the controller 900 is electrically connected to the peristaltic pump 500. Specifically, the controller 900 is a PLC controller 900, and the PLC controller 900 is electrically connected to the peristaltic pump 500, and can control the peristaltic pump 500 to start or stop so as to control the peristaltic pump 500 to work, so as to add the medicine in the medicine bottle 100 to the test bottle 300. It is worth noting that the way in which the controller 900 controls the peristaltic pump 500 to work is a technology that can be known to those skilled in the art and can be implemented, and in this embodiment, no redundant description is given.

[0030] In one embodiment, Figure 1As shown, the experimental device 10 for simulating pH stability of a biological body further includes: a back plate 700, the peristaltic pump 500 is arranged on the back plate 700, a fixing bracket 800 is arranged on the back plate 700, a first end of the pH sensor 600 is mounted on the fixing bracket 800, and a second end of the pH sensor 600 is located in the test chamber 310. Specifically, the medicine bottle 100, the magnetic stirrer 200 and the test bottle 300 are all placed on the back plate 700, and the peristaltic pump 500 is connected to the back plate 700, so that the peristaltic pump 500 can be fixed, and the peristaltic pump 500 can work stably, and the pH sensor 600 is mounted on the back plate 700 through the fixing bracket 800, and can be stably located in the test chamber 310.

[0031] In one embodiment, the back plate 700 is a magnetic back plate, and a first magnetic block is disposed on the fixing bracket 800, wherein a first surface of the first magnetic block is connected to the fixing bracket 800, and a second surface of the first magnetic block is magnetically connected to the magnetic back plate. Specifically, the fixing bracket 800 can be magnetically connected to the magnetic back plate through the first magnetic block, and the position of the fixing bracket 800 on the magnetic back plate can be adjusted, so that the pH sensor 600 can be better fixed in the test cavity 310 of the test bottle 300. At the same time, it is also convenient to disassemble the fixing bracket 800, and the fixing bracket 800 can be well stored.

[0032] In one embodiment, the peristaltic pump 500 is provided with a second magnetic block, the first surface of the second magnetic block is connected to the peristaltic pump 500, and the second surface of the second magnetic block is magnetically connected to the magnetic back plate 700. Specifically, the peristaltic pump 500 can be magnetically connected to the magnetic back plate 700 through the second magnetic block, so that the peristaltic pump 500 can be fixed on the magnetic back plate 700. At the same time, it is also convenient to disassemble and store the peristaltic pump 500.

[0033] In one embodiment, the fixed bracket 800 includes: a connecting rod, a first clamping block and a second clamping block, the first end of the connecting rod is connected to the first surface of the first magnetic block, the second end of the connecting rod is connected to the first end of the first clamping block, the second end of the first clamping block is rotatably connected to the first end of the second clamping block, the second end of the second clamping block is detachably connected to the first end of the first clamping block, the first clamping block is provided with a first mounting groove, the second clamping block is provided with a second mounting groove, the first mounting groove is connected to the second mounting groove to form a mounting through hole, and the first end of the ph sensor 600 is fixed in the mounting through hole. Specifically, the first mounting groove is opened on the side of the first clamping block facing the second clamping block, and the second mounting groove is opened on the side of the second clamping block facing the first clamping block. Both the first mounting groove and the second mounting groove are arc-shaped grooves, and the first mounting groove and the second mounting groove are connected to form a mounting through hole. By rotating the second clamping block, the connection between the second end of the second clamping block and the first end of the first clamping block is released, so that the pH sensor 600 is conveniently placed in the mounting through hole, and then the second clamping block is rotated in the opposite direction so that the second end of the second clamping block is connected to the first end of the first clamping block, that is, the side wall of the mounting through hole is abutted against the first end of the pH sensor 600, thereby fixing the pH sensor 600 on the fixed bracket 800.

[0034] In order to realize the detachable connection between the second end of the second clamping block and the first end of the first clamping block. In one embodiment, the experimental device 10 for simulating the pH stability of a biological body further includes: a bolt and a nut, a first through hole is formed on the first end of the first clamping block, a second through hole is formed on the second end of the second clamping block, the first through hole is aligned with the second through hole, and the bolt is screwed with the nut after passing through the first through hole and the second through hole in sequence. Specifically, the bolt is screwed and locked with the nut after passing through the first through hole and the second through hole in sequence, that is, the first end of the bolt abuts against the outer surface of the first clamping block, the nut is screwed on the second end of the bolt, and the nut abuts against the outer surface of the second clamping block, so that the side wall of the mounting through hole can be tightly abutted against the outer surface of the pH sensor 600. At the same time, the nut is loosened so that the bolt is pulled out of the first through hole and the second through hole, so that the second clamping block can be rotated to open the mounting through hole, so that the pH sensor 600 can be installed on the fixed bracket 800 or removed from the fixed bracket 800.

[0035] In one embodiment, a first anti-skid layer is disposed on the side wall of the first mounting groove, and a second anti-skid layer is disposed on the side wall of the second mounting groove. Specifically, the first anti-skid layer includes a plurality of first convex patterns disposed on the side wall of the first mounting groove, and the second anti-skid layer includes a plurality of second convex patterns disposed on the side wall of the second mounting groove, which can increase the contact area between the side wall of the mounting through hole and the pH sensor 600, and there is a large friction force between the side wall of the mounting through hole and the pH sensor 600, which can keep the position between the side wall of the mounting through hole and the pH sensor 600 relatively still.

[0036] Compared with the prior art, the utility model has at least the following advantages:

[0037] The utility model provides an experimental device for simulating pH stability of an organism. The test bottle is placed on a magnetic stirrer, the test bottle is connected to a medicine bottle through a delivery tube, and a pH sensor is placed in a test cavity of the test bottle. When conducting an experiment, a peristaltic pump drives the delivery tube to deliver the medicine in the medicine bottle to the test bottle, and the magnetic stirrer stirs the test material in the test cavity evenly. In this way, the pH sensor can accurately and quickly measure the pH value of the test material, is not easily affected by the original color of the test material, and the test value is more accurate, and the experimental effect is good. At the same time, it can avoid contact between the operator and the test material, effectively reduce the experimental risk, and has high safety.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An experimental device for simulating pH stability of an organism, characterized in that: include: Pharmaceutical bottles, magnetic stirrers, test bottles, delivery tubes, peristaltic pumps and pH sensors; The medicine bottle and the magnetic stirrer are arranged at intervals; The test bottle is arranged on the magnetic stirrer, a test cavity is provided in the test bottle, a first end of the delivery tube is connected to the medicine bottle, a second end of the delivery tube is connected to the test cavity, and the peristaltic pump is drivingly connected to the delivery tube; The pH sensor is arranged in the test chamber.

2. The experimental device for simulating pH stability of an organism according to claim 1, characterized in that: Also includes: A back plate, the peristaltic pump is arranged on the back plate, a fixing bracket is arranged on the back plate, the first end of the pH sensor is mounted on the fixing bracket, and the second end of the pH sensor is located in the test chamber.

3. The experimental device for simulating pH stability of an organism according to claim 2, characterized in that: The back plate is a magnetic back plate, and a first magnetic block is disposed on the fixing bracket. A first surface of the first magnetic block is connected to the fixing bracket, and a second surface of the first magnetic block is magnetically connected to the magnetic back plate.

4. The experimental device for simulating pH stability of an organism according to claim 3, characterized in that: The peristaltic pump is provided with a second magnetic block, a first surface of the second magnetic block is connected to the peristaltic pump, and a second surface of the second magnetic block is magnetically connected to the magnetic back plate.

5. The experimental device for simulating pH stability of an organism according to claim 3, characterized in that: The fixed bracket includes: a connecting rod, a first clamping block and a second clamping block, the first end of the connecting rod is connected to the first surface of the first magnetic block, the second end of the connecting rod is connected to the first end of the first clamping block, the second end of the first clamping block is rotatably connected to the first end of the second clamping block, the second end of the second clamping block is detachably connected to the first end of the first clamping block, the first clamping block is provided with a first mounting groove, the second clamping block is provided with a second mounting groove, the first mounting groove is connected to the second mounting groove to form a mounting through hole, and the first end of the ph sensor is fixed in the mounting through hole.

6. The experimental device for simulating pH stability of an organism according to claim 5, characterized in that: Also includes: Bolts and nuts, a first through hole is opened on the first end of the first clamping block, a second through hole is opened on the second end of the second clamping block, the first through hole is aligned with the second through hole, and the bolt passes through the first through hole and the second through hole in sequence and then is threadedly connected with the nut.

7. The experimental device for simulating pH stability of an organism according to claim 1, characterized in that: The number of the medicine bottles, the magnetic stirrer, the test bottle, the delivery tube, the peristaltic pump and the pH sensor is set to two or more groups.

8. The experimental device for simulating pH stability of an organism according to claim 1, characterized in that: Also includes: A controller is electrically connected to the peristaltic pump.

9. The experimental device for simulating pH stability of an organism according to claim 5, characterized in that: A first anti-slip layer is arranged on the side wall of the first installation groove.

10. The experimental device for simulating pH stability of an organism according to claim 9, characterized in that: A second anti-slip layer is arranged on the side wall of the second installation groove.

Images