Automatic feeding device for laboratory mice

Abstract

The utility model discloses an automatic feeding device for laboratory mice, which belongs to the technical field of automatic feeding and comprises a bottom plate, a quantitative feeding mechanism is arranged above the bottom plate, and an alarm mechanism is arranged above the bottom plate. The quantitative feeding mechanism is arranged, the alternating-current power supply box supplies power to the electric actuator, the direct-current power supply box and the slide rheostat are matched to provide 4-20 mA electric signals for the electric actuator, the resistance value of the slide rheostat can be adjusted according to different weights of laboratory mice, and therefore the direct current is adjusted, and the feeding efficiency is improved. The opening degree of a valve is adjusted through an electric actuator, the feeding amount of laboratory mice with different weights is adjusted, meanwhile, an alarm mechanism is further arranged, when food is little, the weight of the food cannot press a sliding plate downwards by an enough distance, an alarm rod cannot make contact with an alarm, and when the alarm rod does not make contact with the alarm, the alarm triggers an alarm, and the alarm rod cannot make contact with the alarm. And a worker is reminded of insufficient food in the storage tank, so that the worker can add the food in time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to automatic feeding technical field, concretely is a kind of automatic feeding device for experimental mouse. BACKGROUND

[0002] Experimental mouse is widely used in scientific research biology, they play an important role in the research of biology, medicine, chemical industry, livestock veterinary field, and the reasonable use of experimental mouse makes irreplaceable contribution for human health and scientific development.Experimental mouse needs to be strictly controlled in the process of cultivation Feeding amount, so as to realize the control of its weight.

[0003] The existing experimental mouse automatic feeding device has the following shortcomings: one is that the weight of experimental mouse will be different in the experimental process, the existing device cannot automatically adjust the feeding amount according to the different weight of experimental mouse, so as to realize the control of the weight of experimental mouse;Two is that the consumption of food is large in the experimental process, and the staff cannot know how much food is left in the existing automatic feeding device, so as to add food in time. UTILITY MODEL CONTENTS

[0004] In order to overcome the above defects, the utility model provides an automatic feeding device for experimental mouse, which solves the problems of unable to adjust the feeding amount according to the weight of experimental mouse and unable to add food in time.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: an automatic feeding device for experimental mouse, comprising a bottom plate, the bottom plate is fixedly connected with a base on the top, the base is placed with a protective cover on the top, the protective cover is provided with a rectangular slot on one side, the bottom plate is fixedly connected with two supporting plates on the top, two supporting plates are fixedly connected with a storage tank between, the storage tank is provided with a feeding port on the top, the storage tank is provided with a discharging port on the bottom, the inner wall of the storage tank is provided with a slot, the bottom plate is provided with a quantitative feeding mechanism on the top, and the bottom plate is provided with an alarm mechanism on the top.

[0006] As a further scheme of the utility model: the quantitative feeding mechanism includes a feeding box and a spring, the feeding box is fixedly connected on the top of the bottom plate, the inner wall on both sides of the feeding box is provided with a sliding slot, and the spring is fixedly connected on the inner wall of the bottom surface of the feeding box.

[0007] As a further scheme of the utility model: two springs are fixedly connected with a feeding plate on the top, the feeding plate is slidingly connected between two sliding slots, and the feeding plate is fixedly connected with an L-shaped connecting plate on the top.

[0008] As a further embodiment of this utility model: an AC power supply box and a DC power supply box are placed on the base, a sliding rheostat is fixedly connected on the base, a valve is provided in the discharge port, an electric actuator is provided on one side of the valve, the electric actuator is fixedly connected to the base plate, and the AC power supply box, DC power supply box and sliding rheostat are all housed in a protective cover.

[0009] As a further embodiment of this utility model: the L-shaped connecting plate is fixedly connected to the sliding rheostat, the L-shaped connecting plate is slidably connected in the rectangular groove, the AC power supply box is electrically connected to the electric actuator, the DC power supply box is electrically connected to the sliding rheostat, and the sliding rheostat is signal connected to the electric actuator.

[0010] As a further embodiment of this utility model: the alarm mechanism includes an alarm spring and a sliding plate. The alarm spring is fixedly connected to the bottom surface of the slot, and the sliding plate is fixedly connected above the alarm spring. The sliding plate is slidably connected inside the slot. Two limiting posts are fixedly connected to the bottom surface of the slot. An alarm rod is fixedly connected above the sliding plate. The alarm rod is slidably connected to the upper wall of the storage tank. An alarm is provided above the storage tank, and the alarm is correspondingly set with the alarm rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. A quantitative feeding mechanism is set up. The electric actuator is powered by an AC power supply box, and the electric actuator is provided with a 4 to 20mA electrical signal by a DC power supply box and a sliding rheostat. The resistance value of the sliding rheostat can be adjusted according to the different weights of the experimental mice, thereby adjusting the DC current. In turn, the valve opening is adjusted through the electric actuator to adjust the feeding amount of experimental mice of different weights.

[0013] 2. An alarm mechanism is installed. When the amount of food is low, the weight of the food is insufficient to push the slide down a sufficient distance to make the alarm rod contact the alarm device. When the alarm rod does not contact the alarm device, the alarm device is triggered to remind that the food in the storage tank is insufficient, so that the staff can add food in time. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the quantitative feeding mechanism of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the feeding box of the quantitative feeding mechanism of this utility model;

[0017] Figure 4The utility model discloses a three -dimensional structure schematic diagram of alarm mechanism. In drawing: 1, bottom plate, 2, base, 3, protective cover, 4, storage tank, 5, feed tank, 6, spring, 7, feed plate, 8, L -shaped connecting plate, 9, AC power supply box, 10, DC power supply box, 11, slide rheostat, 12, electric actuator, 13, alarm spring, 14, sliding plate, 15, limit post, 16, alarm rod, 17, alarm. DETAILED DESCRIPTION

[0018] The technical scheme of the patent will be further explained in detail in connection with specific embodiments.

[0019] As Figures 1-4 shown, the utility model provides a technical scheme:

[0020] Including bottom plate 1, bottom plate 1 top fixedly connected with base 2, base 2 top is placed with protective cover 3, and the one side of protective cover 3 is equipped with rectangular groove, and the top of bottom plate 1 is fixedly connected with two support plates, and two support plates are fixedly connected with storage tank 4 between, and the top of storage tank 4 is communicated to be provided with feed inlet, and the bottom of storage tank 4 is communicated to be provided with discharge port, and the inner wall of storage tank 4 is equipped with slot, and the top of bottom plate 1 is provided with ration feeding mechanism, and the top of bottom plate 1 is provided with alarm mechanism.

[0021] Ration feeding mechanism includes feed tank 5 and spring 6, and feed tank 5 is fixedly connected on the top of bottom plate 1, and the inner wall on both sides of feed tank 5 is equipped with sliding slot, and two springs 6 are fixedly connected on the bottom inner wall of feed tank 5, and the top of two springs 6 is fixedly connected with feed plate 7, and feed plate 7 is slidingly connected between two sliding slots, and the top of feed plate 7 is fixedly connected with L-shaped connecting plate 8, and base 2 top is placed with AC power supply box 9 and DC power supply box 10, and base 2 top is fixedly connected with slide rheostat 11, and the valve is arranged in discharge port, and the valve side is provided with electric actuator 12, and electric actuator 12 is fixedly connected on the top of bottom plate 1, and AC power supply box 9, DC power supply box 10 and slide rheostat 11 are all arranged in protective cover 3, and L-shaped connecting plate 8 is fixedly connected with slide rheostat 11, and L-shaped connecting plate 8 is slidingly connected in rectangular groove, and AC power supply box 9 is electrically connected with electric actuator 12, and DC power supply box 10 is electrically connected with slide rheostat 11, and slide rheostat 11 is signal connected with electric actuator 12.

[0022] Specifically, when the feeding plate 7 is not placed on the article, the slide of the slide rheostat 11 is located at the top, the resistance value of the DC circuit is minimum, at this time the DC power supply box 10 provides the electric signal of 20mA for the electric actuator, corresponding to the maximum opening of the valve; when the slide of the slide rheostat 11 is located at the bottom, the resistance value of the DC circuit is maximum, at this time the DC power supply box 10 provides the electric signal of 4mA for the electric actuator, corresponding to the closing state of the valve. When the experimental mouse needs to be fed, the experimental mouse is placed on the feeding plate 7, and then the AC power supply box 9 and the DC power supply box 10 are turned on, the AC power supply box 9 supplies power to the electric actuator 12, so that the electric actuator 12 opens the valve, along with the food falling on the feeding plate 7, the experimental mouse and the food continuously compress the spring 6 through the feeding plate 7, and drive the slide of the slide rheostat 11 to move downwards through the L-shaped connecting plate 8, in this process, the total weight of the experimental mouse and the food and the resistance value of the slide rheostat 11 increase continuously, the electric signal provided by the DC power supply box 10 decreases continuously, and the opening of the valve also decreases continuously, when the weight on the feeding plate 7 reaches the set value, the slide of the slide rheostat 11 moves to the bottom, the electric actuator 12 closes the valve, and the feeding of the experimental mouse is stopped, then the AC power supply box 9 and the DC power supply box 10 are turned off, and the control of the feeding amount of the experimental mouse with different weights is realized.

[0023] The alarm mechanism comprises an alarm spring 13 and a sliding plate 14, the alarm spring 13 is fixedly connected to the bottom surface of the slot, the sliding plate 14 is fixedly connected above the alarm spring 13, the sliding plate 14 is slidingly connected in the slot, two limiting columns 15 are fixedly connected to the bottom surface of the slot, an alarm rod 16 is fixedly connected above the sliding plate 14, the alarm rod 16 is slidingly connected with the upper wall of the storage tank 4, an alarm 17 is arranged above the storage tank 4, and the alarm 17 is arranged in correspondence with the alarm rod 16.

[0024] Specifically, when the food in the storage tank 4 is more, the food presses the alarm spring 13 and the sliding plate 14 downwards, and drives the alarm rod 16 to move downwards, and finally contacts the alarm 17, at this time, the alarm 17 cannot trigger the alarm, when the food in the storage tank 4 is too much, the sliding plate 14 is limited to move downwards by the two limiting columns 15, so that the alarm spring 13 is prevented from being damaged; when the food in the storage tank 4 is less, the weight of the food cannot compress the alarm spring 13, the alarm spring 13 pushes the sliding plate 14 to move upwards, and drives the alarm rod 16 to move away from the alarm 17, at this time, the alarm 17 triggers the alarm, so that the worker can add food in time.

[0025] The working principle of the utility model is:

[0026] When there is no food on the feeding plate 7, the slide of the slide rheostat 11 is at the top, the resistance value of the DC circuit is minimum, and the DC power supply box 10 provides a 20 mA electric signal to the electric actuator, corresponding to the maximum opening of the valve; when the slide of the slide rheostat 11 is at the bottom, the resistance value of the DC circuit is maximum, and the DC power supply box 10 provides a 4 mA electric signal to the electric actuator, corresponding to the closed state of the valve. When it is necessary to feed the experimental mouse, the experimental mouse is placed on the feeding plate 7, and then the AC power supply box 9 and the DC power supply box 10 are turned on. The AC power supply box 9 supplies power to the electric actuator 12, so that the electric actuator 12 opens the valve. As the food falls on the feeding plate 7, the experimental mouse and the food continuously compress the spring 6 through the feeding plate 7, and the slide of the slide rheostat 11 is driven downward through the L-shaped connecting plate 8. In this process, the total weight of the experimental mouse and the food and the resistance value of the slide rheostat 11 increase continuously, the electric signal provided by the DC power supply box 10 decreases continuously, and the opening of the valve also decreases continuously. When the weight on the feeding plate 7 reaches the set value, the slide of the slide rheostat 11 moves to the bottom, the electric actuator 12 closes the valve, and the feeding of the experimental mouse is stopped. Then the AC power supply box 9 and the DC power supply box 10 are turned off, and the control of the feeding amount of the experimental mouse with different weights is realized.

[0027] When the food in the storage tank 4 is sufficient, the food will press down the alarm spring 13 and the slide plate 14, and drive the alarm rod 16 to move downward, and finally contact the alarm 17. At this time, the alarm 17 cannot trigger the alarm. When the food in the storage tank 4 is too much, the slide plate 14 will be limited to move downward by the two limiting columns 15, preventing the alarm spring 13 from being damaged. When the food in the storage tank 4 is insufficient, the weight of the food cannot compress the alarm spring 13, the alarm spring 13 pushes the slide plate 14 to move upward, and drives the alarm rod 16 to move away from the alarm 17. At this time, the alarm 17 triggers the alarm, so that the staff can add food in time. The above describes the preferred embodiments of the present patent in detail, but the present patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present patent.

Claims

1. An automatic feeding device for laboratory mice, comprising a base plate (1), characterised in that: The bottom plate (1) is fixedly connected with a base (2), the base (2) is placed with a protective cover (3), the protective cover (3) is provided with a rectangular slot on one side, the bottom plate (1) is fixedly connected with two supporting plates, the two supporting plates are fixedly connected with a storage tank (4), the storage tank (4) is provided with a feeding port on the top, the storage tank (4) is provided with a discharge port on the bottom, the inner wall of the storage tank (4) is provided with a slot, the bottom plate (1) is provided with a quantitative feeding mechanism, the bottom plate (1) is provided with an alarm mechanism.

2. The automatic feeding device for experimental mice according to claim 1, characterized in that: The quantitative feeding mechanism comprises a feeding box (5) and a spring (6), the feeding box (5) is fixedly connected to the top of the bottom plate (1), the inner wall of the feeding box (5) is provided with a sliding groove on both sides, and the two springs (6) are fixedly connected to the inner wall of the bottom surface of the feeding box (5).

3. The automatic feeding device for experimental mice according to claim 2, characterized in that: The two springs (6) are fixedly connected with a feeding plate (7), the feeding plate (7) is slidably connected between the two sliding grooves, and the feeding plate (7) is fixedly connected with an L-shaped connecting plate (8) on the top.

4. The automatic feeding device for experimental mice according to claim 3, characterized in that: The base (2) is placed with an AC power supply box (9) and a DC power supply box (10), the base (2) is fixedly connected with a sliding rheostat (11), the discharge port is provided with a valve, the valve is provided with an electric actuator (12) on one side, the electric actuator (12) is fixedly connected to the top of the bottom plate (1), and the AC power supply box (9), the DC power supply box (10) and the sliding rheostat (11) are arranged in the protective cover (3).

5. The automatic feeding device for experimental mice according to claim 4, characterized in that: The L-shaped connecting plate (8) is fixedly connected with the sliding rheostat (11), the L-shaped connecting plate (8) is slidably connected in the rectangular slot, the AC power supply box (9) is electrically connected with the electric actuator (12), the DC power supply box (10) is electrically connected with the sliding rheostat (11), and the sliding rheostat (11) is signal connected with the electric actuator (12).

6. The automatic feeding device for experimental mice according to claim 5, characterized in that: The alarm mechanism comprises an alarm spring (13) and a sliding plate (14), the alarm spring (13) is fixedly connected to the bottom surface of the slot, the sliding plate (14) is fixedly connected above the alarm spring (13), the sliding plate (14) is slidably connected in the slot, two limiting columns (15) are fixedly connected to the bottom surface of the slot, the sliding plate (14) is fixedly connected with an alarm rod (16) on the top, the alarm rod (16) is slidably connected with the upper wall of the storage tank (4), the storage tank (4) is provided with an alarm (17) on the top, and the alarm (17) is arranged correspondingly with the alarm rod (16).

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