CN220235720U - An automatic weighing mechanism for measuring the water consumption of experimental rats - Google Patents

Abstract

The utility model discloses an automatic weighing mechanism for measuring the drinking water amount of experimental rats, which includes a carrier plate and a through slot provided on the carrier plate; the through slot is fitted with a drinking bottle, and an annular seat is fixedly connected to the outer wall of the drinking bottle. A plurality of pressure sensors are provided on the carrier board, and the ring seat is placed on top of the pressure sensor; the bottom of the drinking bottle is fixedly connected to a first pipe body, and a flow meter is installed at the bottom of the first pipe body, and the flow meter is away from the first pipe body A second pipe body is installed at one port of the second pipe body, and a self-opening and closing suction nozzle is installed at the end of the second pipe body; the suction nozzle includes a shell and a sealing plate that is disposed inside the shell and can move along the length of the shell. One end of the shell is connected to the third pipe body. One end of the two-tube body is fixedly connected to the socket, and the other end of the shell has a hemispherical spherical structure. Several pores are provided in the semicircular spherical position of the shell. The utility model is beneficial in that it accurately grasps the start and end time of experimental animals drinking water and the precise amount of water they drink; at the same time, no manual measurement is required, and the overall use is convenient.

Description

An automatic weighing mechanism for measuring the water consumption of experimental rats

Technical field

The utility model relates to the field of drinking water measurement, in particular to an automatic weighing mechanism for measuring the drinking water volume of experimental rats.

Background technique

The current drinking water test operation process for experimental rats: manually remove the drinking water bottle and let the target experimental rat deprive it of water for 24 hours. After 24 hours, the drinking bottle is weighed and placed in the rat cage. After the experimental rat drinks the first water, a 4-minute countdown begins and the countdown ends. Then take out the drinking bottle and weigh it again. The difference in the weight of the drinking bottle before and after the drinking test is the amount of water the experimental rat drinks.

For example, the publication number is CN211746166U, which discloses a drinking bottle for mouse experiments, which includes a bottle body and a measuring cylinder connected and communicated with the bottle body; the bottle body includes a straight bottom and an arcuate top, so The measuring cylinder is connected to the arcuate top; wherein the measuring cylinder forms an included angle of 10-60° with the plane where the flat bottom is located. When using the mouse experimental drinking water bottle of the present invention, first fill the drinking water bottle with water, and then place it in the position where the water bottle is placed in the experimental mouse cage, so that the bottle body is tilted and the measuring cylinder is in the vertical direction. The liquid level in the measuring cylinder is level for accurate readings. When reading the amount of water consumed by mice, there is no need to pull out the drinking bottle from the cage, so there will be no problem of shaking and leakage, thereby improving the accuracy of measuring the amount of water consumed by mice, and it can be read intuitively from the measuring cylinder. Volume number, saving time and effort;

Although the above-mentioned patent can realize the measurement of drinking water without weighing, it has the following defects. During the measurement process and timing process, manual timing is still required, and it is impossible to accurately grasp the start and end time of experimental animals drinking water, which is not easy to be accurate. There is an error in the amount of water you drink.

Therefore, an automatic weighing mechanism for measuring the water consumption of experimental rats is proposed to solve the above problems.

Utility model content

The utility model provides an automatic weighing mechanism for measuring the drinking water amount of experimental rats, which is used to solve the problem of difficulty in timing drinking water in the prior art.

An automatic weighing mechanism for measuring the drinking water amount of experimental rats, including a carrier plate and a through slot provided on the carrier plate; a drinking bottle is connected to the through slot with a clearance, and an annular seat is fixedly connected to the outer wall of the drinking bottle , multiple pressure sensors are provided on the carrier plate, and the annular seat is placed on the top of the pressure sensor; the bottom of the drinking water bottle is fixedly connected with a first pipe body, and a flow meter is installed at the bottom end of the first pipe body , and a second pipe body is installed at a port of the flow meter away from the first pipe body, and a self-opening and closing suction nozzle is installed at the end of the second pipe body; the suction nozzle includes a shell and a suction nozzle that is arranged inside the shell and can be opened and closed along the The sealing plate moves in the length direction of the casing. One end of the casing is fixedly connected to the end of the second tube away from the flow meter. The other end of the casing is a semi-spherical structure, and there are several semi-spherical positions of the casing. fine pores.

Further, the top of the drinking bottle is fixedly and connected with a liquid filling port, and the top thread of the liquid filling port is threaded with a sealing cap.

Further, a control box and a display screen are provided on the top of the carrier board, and a microcontroller controller, a timer and a power supply are provided in the control box.

Further, the single-chip microcomputer controller in the control box is electrically connected to a switch.

Further, the suction nozzle further includes a guide hole plate and a mounting base fixedly installed in the housing. The guide hole plate is provided with a guide hole. An iron rod is connected to the guide hole with a clearance fit. The mounting base is fixedly installed with a guide hole. The electromagnet is located at one end of the iron rod, and the other end of the iron rod is fixedly installed with the sealing plate. A spring is set on the iron rod, and one end of the spring is fixedly connected to the face of the iron rod. The other end of the spring One end is fixedly connected to the surface of the guide hole plate.

Furthermore, a rubber gasket is provided on the surface of the sealing plate close to the pores.

The utility model is beneficial in that: the automatic weighing mechanism proposed by the utility model for measuring the water consumption of experimental rats can pass through the self-opening and closing suction nozzle. After the timer ends, the water absorption of the experimental rats can be quickly ended, and the timer starts to pass. The flow meter automatically starts timing whether there is a flow rate, without manual timing, which improves the accuracy of the experiment, accurately grasps the start and end time of experimental animals drinking water, accurately drinks water, and reduces errors; at the same time, its measurement is achieved through a flow meter and a pressure sensor. No manual measurement is required, making it easy to use.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

Figure 2 is a schematic cross-sectional structural diagram of the installation of a drinking bottle and a carrier plate according to an embodiment of the present invention;

Figure 3 is a schematic cross-sectional structural diagram of a suction nozzle according to an embodiment of the present invention;

Figure 4 is a schematic structural diagram of a guide hole plate and a housing according to an embodiment of the present invention.

In the picture: 1. Drinking bottle; 2. Carrier plate; 3. Ring seat; 4. Sealing cover; 5. Display screen; 6. Switch; 7. Control box; 8. First tube body; 9. Flow meter; 10. Second tube body; 11. Suction nozzle; 1101. Shell; 1102. Electromagnet; 1103. Mounting seat; 1104. Guide hole plate; 1105. Iron rod; 1106. Spring; 1107. Sealing plate; 1108. Fine hole; 12. Through slot; 13. Pressure sensor.

Detailed ways

In order to enable those in the technical field to better understand the solution of the present utility model, the technical solution in the embodiment of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present utility model. Obviously, the described The embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present utility model.

It should be noted that, as long as there is no conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to Figure 1-4, an automatic weighing mechanism for measuring the water consumption of experimental rats includes a carrier plate 2 and a through slot 12 opened on the carrier plate 2;

A drinking bottle 1 is connected with a clearance fit in the slot 12, and an annular seat 3 is fixedly connected to the outer wall of the drinking bottle 1. A plurality of pressure sensors 13 are provided on the carrier plate 2, and the annular seat 3 is placed on top of pressure sensor 13;

The bottom of the drinking bottle 1 is fixedly connected with a first tube 8. A flow meter 9 is installed at the bottom end of the first tube 8, and a second tube is installed at a port of the flow meter 9 away from the first tube 8. Body 10, the end of the second pipe body 10 is equipped with a self-opening and closing suction nozzle 11;

The suction nozzle 11 includes a shell 1101 and a sealing disk 1107 which is disposed inside the shell 1101 and can move along the length direction of the shell 1101. One end of the shell 1101 is fixedly connected to the end of the second tube body 10 away from the flow meter 9, so The other end of the housing 1101 has a hemispherical structure, and several pores 1108 are provided at the semispherical positions of the housing 1101;

When the suction nozzle 11 is closed, the sealing disk 1107 covers the pores 1108, and when the suction nozzle 11 is opened, the sealing disk 1107 is separated from the pores 1108.

In specific implementation, the top of the drinking water bottle 1 is fixedly and connected with a liquid filling port, and the top thread of the liquid filling port is threaded with a sealing cap 4 for adding liquid into the drinking water bottle 1 through the liquid filling port.

Further, the top of the carrier board 2 is provided with a control box 7 and a display screen 5. The control box 7 is provided with a single-chip microcomputer controller, a timer and a power supply; the single-chip microcomputer controller in the control box 7 is electrically connected to Switch 6; the single-chip controller is electrically connected to the display screen 5, flow meter 9, electromagnet 1102, timer and switch 6 to play the role of overall control. The charging interface of the power supply extends from the control box 7 for Charge;

The switch 6 adopts a key switch to provide control for opening the fine hole 1108 on the suction nozzle 11 to start the test.

As a specific technical solution, the nozzle 11 also includes a guide hole plate 1104 and a mounting seat 1103 fixedly installed in the housing 1101. The guide hole plate 1104 is provided with a guide hole, and an iron rod is connected to the guide hole with a clearance fit. 1105. The electromagnet 1102 is fixedly installed on the mounting base 1103, and the electromagnet 1102 is located at one end of the iron rod 1105. The other end of the iron rod 1105 is fixedly installed with the sealing plate 1107. The iron rod 1105 is provided with a spring 1106. One end of the spring 1106 is fixedly connected to the club surface of the iron rod 1105, and the other end of the spring 1106 is fixedly connected to the surface of the guide hole plate 1104; a rubber gasket is provided on the surface of the sealing plate 1107 close to the pore 1108, and passes through The electromagnet 1102 is turned on and off to control the opening and closing of the pores 1108.

Usage method: The utility model proposes an automatic weighing mechanism for measuring the drinking water of experimental rats. When conducting the drinking test of experimental rats, the mechanism is placed on a rat cage with a hole on the top (it should be noted that this hole is in When the experiment is not being carried out, it must be closed, and a pull-out mesh door or a cover can be installed). The hole is smaller than the length and width of the carrier plate 2, allowing the drinking bottle 1 to pass through, so that the carrier plate 2 is placed in the mouse cage. the top of;

Then by pressing the switch 6, the microcontroller controller receives a signal, energizes the electromagnet 1102, generates magnetic force, magnetically attracts the iron rod 1105, and compresses the spring 1106 at the same time, causing the iron rod 1105 to drive the sealing plate 1107 to move together and separate from the pore 1108. Because the orifices are small, water droplets can seal these small pores due to tension factors. When the experimental mouse does not absorb water, there will be no leakage. When the experimental mouse absorbs water, the water flow passes through the flow meter 9 for measurement and transmission at the same time. The signal is sent to the microcontroller controller, and the timer is started for timing. When the timer reaches 4 minutes, the electromagnet 1102 is powered off through the microcontroller controller, causing the iron rod 1105 to lose its magnetic attraction. It is driven by the elastic force of the spring 1106 to close the pores of the sealing plate 1107. 1108, the experimental mouse cannot absorb water, and the experiment is completed;

By taking out the entire mechanism, the value displayed on the flow meter 9 is combined with the pressure value sensed by the pressure sensor 13 before and after the experiment. The sensed data is transmitted to the microcontroller controller for processing, and is displayed through the display. Through the difference of the pressure value before and after the experiment, value to determine the amount of water consumed.

The utility model proposes an automatic weighing mechanism for measuring the amount of water consumed by experimental rats. It can pass through the self-opening and closing suction nozzle 11. After the timer ends, the water absorption of the experimental rats can be quickly ended. The timer starts to check whether there is a flow rate of the flowmeter 9. Automatically start timing without manual timing, which improves the accuracy of the experiment, accurately grasps the start and end time of experimental animals drinking water, accurately drinks water, and reduces errors; at the same time, the measurement is realized through the flow meter 9 and the pressure sensor 13, without manual measurement. Overall easy to use.

The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. An automatic weighing mechanism for measuring the water intake of an experimental mouse, which is characterized in that: comprises a carrier plate (2) and a through groove (12) arranged on the carrier plate (2);

the through groove (12) is connected with the drinking bottle (1) in a clearance fit manner, the outer wall of the drinking bottle (1) is fixedly sleeved with the circular ring seat (3), the carrier plate (2) is provided with a plurality of pressure sensors (13), and the circular ring seat (3) is placed at the top of the pressure sensors (13);

the bottom of the drinking bottle (1) is fixedly communicated with a first pipe body (8), a flowmeter (9) is arranged at the bottom end of the first pipe body (8), a second pipe body (10) is arranged at one port, far away from the first pipe body (8), of the flowmeter (9), and a suction nozzle (11) capable of being opened and closed automatically is arranged at the tail end of the second pipe body (10);

the suction nozzle (11) comprises a shell (1101) and a sealing disc (1107) which is arranged inside the shell (1101) and can move along the length direction of the shell (1101), one end of the shell (1101) is fixedly sleeved with one end of the second pipe body (10) far away from the flowmeter (9), the other end of the shell (1101) is of a semicircular structure, and a plurality of pores (1108) are formed in the semicircular position of the shell (1101).

2. An automatic weighing mechanism for measuring water intake of laboratory mice as claimed in claim 1, wherein: the top of the drinking bottle (1) is fixedly communicated with a liquid adding port, and a sealing cover (4) is arranged at the top end of the liquid adding port in a threaded manner.

3. An automatic weighing mechanism for measuring water intake of laboratory mice as claimed in claim 1, wherein: the top of support plate (2) is provided with control box (7) and display screen (5), be provided with singlechip controller, time-recorder and power in control box (7).

4. An automatic weighing apparatus for measuring water intake of laboratory mice as claimed in claim 3, wherein: the singlechip controller in the control box (7) is electrically connected with a switch (6).

5. An automatic weighing mechanism for measuring water intake of laboratory mice as claimed in claim 1, wherein: the suction nozzle (11) further comprises a guide hole plate (1104) and a mounting seat (1103) which are fixedly mounted in the shell (1101), a guide hole is formed in the guide hole plate (1104), an iron rod (1105) is connected with the guide hole in a clearance fit mode, an electromagnet (1102) is fixedly mounted on the mounting seat (1103), the electromagnet (1102) is located at one end of the iron rod (1105), the other end of the iron rod (1105) is fixedly mounted with the sealing disc (1107), a spring (1106) is sleeved on the iron rod (1105), one end of the spring (1106) is fixedly connected with the rod surface of the iron rod (1105), and the other end of the spring (1106) is fixedly connected with the plate surface of the guide hole plate (1104).

6. An automatic weighing mechanism for measuring water intake of laboratory mice as claimed in claim 5, wherein: a rubber gasket is arranged on the surface, close to the fine holes (1108), of the sealing disc (1107).