A timed and quantitative feeder for experimental animals

Abstract

The invention discloses a timed and quantitative feeder for experimental animals, and relates to the technical field of feeders. The timed and quantitative feeder for experimental animals comprises a base, a support frame is fixedly installed on the upper surface of the base, a material discharge box is fixedly installed on the upper surface of the support frame, a discharging mechanism is arranged inside the material discharge box, the discharging mechanism consists of a material discharge component and an anti-blocking component, the material discharge component comprises: a rotating cylinder, a weighing mechanism, the weighing mechanism consists of a detection component and a loading component, the detection component comprises: a material discharge box, the material discharge box is fixedly installed on one side surface of the material discharge box, a storage mechanism, the storage mechanism is fixedly installed on the upper surface of the material discharge box, the storage mechanism comprises: two material barrel racks, the loading component comprises: a motor mounting seat, in this scheme, by arranging the discharging mechanism, the weighing mechanism and the storage mechanism, automatic timed and quantitative feeding is realized, the manual workload is reduced, and it is ensured that the animal's eating meets the experimental requirements.

Description

Technical Field

[0001] The invention relates to the technical field of feeders, in particular to a timed and quantitative feeder for experimental animals. Background Art

[0002] In recent years, with the growing demand for experimental animals (especially rats and mice) in the scientific research field, the number of experimental animals that need to be raised is also increasing, and the feeding management of experimental animals has become particularly important. Among them, regular and quantitative feeding is extremely important for the healthy growth of experimental animals, especially for special experimental designs (such as food restriction experiments). Traditional feeding methods often rely on manual operations, which not only consumes a lot of manpower, but also makes it difficult to accurately control feeding time and feeding amount. Inaccurate feeding time and feeding amount will also have a certain impact on the physiology and behavior of experimental animals, thereby affecting the reliability and repeatability of the experimental results. Traditional feeding methods are also not suitable for experiments that strictly control eating time and food intake (such as night feeding experiments). Summary of the invention

[0003] The object of the present invention is to provide a timed and quantitative feeder for experimental animals to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a timed quantitative feeder for experimental animals, comprising a base, a support frame is fixedly mounted on the upper surface of the base, a feed box is fixedly mounted on the upper surface of the support frame, and a discharging mechanism is arranged inside the feed box;

[0005] The discharging mechanism is composed of a material discharge assembly and an anti-blocking assembly. The material discharge assembly includes: a rotating cylinder, the rotating cylinder is located inside the material discharge box, a material discharge channel is opened inside the material discharge box, a fixed cylinder is sleeved at the center of the rotating cylinder, and a fixed plate is fixedly installed on the bottom surface of the fixed cylinder;

[0006] The weighing mechanism is composed of a detection component and a loading component. The detection component includes: a discharge box, the discharge box is fixedly mounted on one side surface of the lower material box, a rotatable movable cover is arranged on one side surface of the discharge box through an axis, a load-bearing box is fixedly mounted on the other side surface of the discharge box, and a discharge port for discharging is also opened on one side surface of the discharge box;

[0007] A storage mechanism, the storage mechanism is fixedly mounted on the upper surface of the lower material box, the storage mechanism comprises: two barrel racks, the bottom surface of the barrel racks is provided with a plurality of spring plates, the two sides of the two barrel racks are connected by elastic ropes, and the surface of the elastic ropes is also provided with two hoops;

[0008] The detection component includes: a connecting shaft body, which is fixedly installed on one side surface of the discharge box, a load-bearing rod is provided on the bottom surface of the connecting shaft body, a horizontal limiting plate is fixedly installed on the other side surface of the connecting shaft body, a connecting frame is fixedly installed on the bottom surface of the horizontal limiting plate, a vertical limiting plate is fixedly installed on one side surface of the connecting frame, a carrying tray is fixedly installed on the side surface of the connecting frame away from the vertical limiting plate, two sleeve rods are fixedly installed on the upper surface of the carrying tray, a plurality of weights for weighing are sleeved on the surface of the sleeve rods, a fixed cover plate is fixedly installed on the upper surface of the carrying tray, the carrying tray can move up and down on the bottom surface of the fixed cover plate, a through hole is opened on the surface of the fixed cover plate for facilitating the passage of the sleeve rod, a lift cover is provided on the upper surface of the fixed cover plate, a control rod is provided at the center of the lift cover, and two fixed clamping rods are provided on the bottom surface of the control rod.

[0009] Furthermore, the material discharge component also includes: an engaging ring, which is sleeved on the surface of the rotating cylinder, and an inclined plate is also fixedly installed on the bottom surface of the center of the fixed cylinder, and an engaging gear disk is engaged on one side surface of the engaging ring, and a servo motor is arranged below the engaging gear disk, and the engaging gear disk is installed on the output shaft of the servo motor, and a motor fixing frame is arranged on the bottom surface of the servo motor, and the bottom surface of the motor fixing frame is fixedly connected to the inner upper surface of the material discharge channel, and a top touch rod is fixedly installed on the bottom surface of the engaging ring.

[0010] Furthermore, the anti-blocking component includes: a lifting plate, the lifting plate is located on the bottom surface of the rotating cylinder, the lifting plate can move up and down following the rotating cylinder, a plurality of connecting springs are fixedly installed on the upper surface of the lifting plate, the top surface of the connecting springs is fixedly connected to the bottom surface of the fixed plate, and a plurality of protrusions are fixedly installed on the top surface of the fixed plate.

[0011] Furthermore, the loading assembly includes: a motor mounting seat, which is fixedly mounted on a side surface of the discharge box and located inside the load-bearing box, a driving motor is arranged on the upper surface of the motor mounting seat, a trigger button is arranged on the bottom surface of the motor mounting seat, two weighing frames and two isolation plates are fixedly mounted on the output shaft of the driving motor, and a movable cleaning roller is arranged at the end of the isolation plate.

[0012] Furthermore, a side surface of the transverse limiting plate is connected to a trigger column via a connecting shaft, and a contraction spring is arranged between the bottom surface of the trigger column and the surface of the transverse limiting plate.

[0013] Furthermore, the storage mechanism includes: two limiting blocks, the two limiting blocks are respectively located on one side surface of the two barrel racks, a retractable fixed block is provided on one side surface of the barrel rack, the upper surface of the limiting block is provided with a touch-pressure switch for driving the barrel rack, the bottom surface of the touch-pressure switch is provided with a plurality of return springs, the return springs are located inside the limiting block, a trigger pile is also fixedly installed on the bottom surface of the touch-pressure switch, a force-bearing rod is provided below the trigger pile, a rotating shaft is provided at the center of the force-bearing rod, and a side surface of the fixed block is connected to one end of the force-bearing rod through a connecting shaft.

[0014] Furthermore, a material storage barrel is arranged between the material barrel racks, and a slidable sliding trigger ring is arranged on the lower surface of the material storage barrel, and sliding switches are fixedly installed on both sides of the sliding trigger ring to facilitate sliding thereof, and a card groove cooperating with a fixed card block is also provided on the surface of the material storage barrel, and an annular groove is also provided on the bottom opening of the material storage barrel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this scheme, by providing a discharging mechanism, and by designing a rotating cylinder and a top contact rod, when the meshing gear disc rotates, the rotating cylinder can be driven to move up and down slightly, thereby realizing the shaking of the fixed cylinder and the storage barrel, avoiding the blockage problem caused by the accumulation of feed at the outlet, and also speeding up the feeding speed of the feed, improving the overall work efficiency and the smoothness of feed feeding. At the same time, the rotatable rotating cylinder can realize the function of automatic feeding at a fixed time;

[0017] 2. In this scheme, by providing a weighing mechanism, combining a driving motor and a detection component, the feed weight can be automatically detected and the weighing frame can be automatically exchanged after reaching the standard, and the feeding process can be completed during the exchange process, thereby reducing manual participation and intervention in feeding work, reducing labor intensity, and improving the accuracy and consistency of the weight of a single feeding of feed;

[0018] 3. In this solution, by providing a storage mechanism, a discharge box and a movable cover, the replacement and cleaning of the cleaning drum becomes simple and convenient, which improves the maintainability of the equipment. In addition, the use of the cleaning drum can also effectively remove the stains remaining in the feed in the discharge box, prevent the feed from deteriorating and breeding bacteria, and further ensure the food safety of the animals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the load-bearing box of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the discharging mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the loading assembly structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the limiting block of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the material storage barrel of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the detection component of the present invention;

[0027] Fig. 9 It is a schematic diagram of the loading assembly structure of the present invention.

[0028] In the figure: 1, base; 2, support frame; 3, discharge box; 4, unloading box; 5, movable cover; 6, discharge port; 7, barrel rack; 8, storage barrel; 9, weighing frame; 10, isolation plate; 11, cleaning drum; 12, rotating drum; 13, unloading channel; 14, load-bearing box; 15, bearing tray; 16, fixed drum; 17, inclined plate; 18, meshing collar; 19, fixed plate; 20, lifting plate; 21, bump; 22, connecting spring; 23, top contact rod; 24, servo motor; 25, motor fixing frame; 26, meshing gear plate; 27, limit block; 28, fixed card block; 2 9. Touch-pressure switch; 30. Hoop; 31. Elastic rope; 32. Spring plate; 33. Trigger pile; 34. Reset spring; 35. Force rod; 36. Rotating shaft; 37. Motor mounting seat; 38. Sliding trigger ring; 39. Slot; 40. Sliding switch; 41. Annular groove; 42. Weight; 43. Sleeve rod; 44. Fixed cover plate; 45. Lifting cover; 46. Control rod; 47. Fixed clamping rod; 48. Horizontal limiting plate; 49. Vertical limiting plate; 50. Connecting shaft; 51. Load-bearing rod; 52. Trigger column; 53. Driving motor; 54. Trigger button; 55. Connecting frame. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 9A timed quantitative feeder for experimental animals, comprising a base 1, a support frame 2 is fixedly mounted on the upper surface of the base 1, a feed box 4 is fixedly mounted on the upper surface of the support frame 2, and a discharging mechanism is arranged inside the feed box 4;

[0031] The discharging mechanism is composed of a material discharge assembly and an anti-blocking assembly. The material discharge assembly includes: a rotating cylinder 12, the rotating cylinder 12 is located inside the material discharge box 4, a material discharge channel 13 is opened inside the material discharge box 4, a fixed cylinder 16 is sleeved at the center of the rotating cylinder 12, a fixed plate 19 is fixedly installed on the bottom surface of the fixed cylinder 16, and the fixed plate 19 is fixedly installed on the inner bottom surface of the material discharge channel 13;

[0032] The weighing mechanism is composed of a detection component and a loading component. The detection component includes: a discharge box 3, which is fixedly mounted on one side surface of a lower box 4, and a rotatable movable cover plate 5 is arranged on one side surface of the discharge box 3 through an axis, and a load-bearing box 14 is fixedly mounted on the other side surface of the discharge box 3. A discharge port 6 for discharging materials is also provided on one side surface of the discharge box 3;

[0033] The storage mechanism is fixedly mounted on the upper surface of the material box 4, and includes: two barrel racks 7, the bottom surface of the barrel rack 7 is provided with a plurality of spring plates 32, the bottom surface of the spring plate 32 is fixedly connected to the upper surface of the material box 4, and both sides of the two barrel racks 7 are connected by elastic ropes 31, and the surface of the elastic rope 31 is also provided with two hoops 30;

[0034] The material discharge assembly further includes: an engagement collar 18, which is sleeved on the surface of the rotating cylinder 12, and can drive the rotating cylinder 12 to rotate on the surface of the fixed cylinder 16. An inclined plate 17 is also fixedly installed on the bottom surface of the center of the fixed cylinder 16. An engagement toothed disc 26 is engaged on one side surface of the engagement collar 18, and a servo motor 24 is arranged below the engagement toothed disc 26. The engagement toothed disc 26 is mounted on the output shaft of the servo motor 24. A motor fixing bracket 25 is arranged on the bottom surface of the servo motor 24, and the bottom surface of the motor fixing bracket 25 is fixedly connected to the inner upper surface of the material discharge channel 13;

[0035] The feeding assembly is used to regularly deliver food from the storage barrel 8 to the discharging box 3. When in use, the staff uses an external remote control device to control the servo motor 24 according to the feeding interval, adjust the speed of the servo motor 24, and make the servo motor 24 drive the meshing gear plate 26 to rotate. When the feeding time is reached, at this time, driven by the servo motor 24, the meshing teeth on one side of the meshing gear plate 26 begin to mesh with the meshing ring 18, and use the meshing ring 18 to drive the rotating cylinder 12 to rotate, move the rotating cylinder 12 to the rear of the fixed cylinder 16, and move the fixed cylinder 16 to the rear of the fixed cylinder 16. The opening on one side is exposed, so that the feed inside is discharged from the inside of the fixed cylinder 16, and gradually rolls into the inside of the discharge box 3 along the slope of the inclined plate 17 and the discharge channel 13 for weighing and storage. At this time, as the meshing ring 18 and the meshing toothed disc 26 are meshed, the rotating cylinder 12 continues to rotate, and when the meshing toothed disc 26 rotates to the side without meshing teeth, the meshing ring 18 and the meshing toothed disc 26 lose the meshing effect, and the rotating cylinder 12 is reset to its original position, and the opening on the side of the fixed cylinder 16 is blocked again, so that the feed is blocked inside the fixed cylinder 16, avoiding the problem of excessive single-time feeding;

[0036] The anti-blocking assembly includes: a lifting plate 20, which is located on the bottom surface of the rotating cylinder 12, and can move up and down with the rotating cylinder 12. A plurality of connecting springs 22 are fixedly installed on the upper surface of the lifting plate 20, and the top surface of the connecting springs 22 is fixedly connected to the bottom surface of the fixing plate 19. A plurality of protrusions 21 are fixedly installed on the top surface of the fixing plate 19, and a top contact rod 23 for cooperating with the protrusions 21 is fixedly installed on the bottom surface of the engaging ring 18;

[0037] The anti-blocking component is used to prevent the outlet from being blocked when the material discharge component is discharging materials. When in use, as the engagement of the engagement ring 18 and the engagement toothed disc 26 drives the rotating cylinder 12 to rotate, the top-touch rod 23 on the bottom surface of the rotating cylinder 12 slides on the upper surface of the protrusion 21. When the top-touch rod 23 contacts the protrusion 21 on the surface of the fixed plate 19, the rotating cylinder 12 will rise due to the top-touch effect. During the rising process of the rotating cylinder 12, the lifting plate 20 on the bottom surface of the rotating cylinder 12 will rise synchronously and approach the fixed fixed plate 19. During the approaching process, the connecting spring 22 between the fixed plate 19 and the lifting plate 20 is squeezed, and is quickly reset after the top-touch rod 23 slides over the surface of the protrusion 21, and the fixed cylinder 16 and the storage barrel 8 are slightly shaken up and down, so that the feed at the outlet is prevented from accumulating and causing blockage, and the feeding speed of the feed can also be accelerated;

[0038] The loading assembly includes: a motor mounting seat 37, which is fixedly mounted on one side surface of the discharge box 3 and is located inside the load-bearing box 14, a driving motor 53 is arranged on the upper surface of the motor mounting seat 37, a trigger button 54 is arranged on the bottom surface of the motor mounting seat 37, the trigger button 54 and the driving motor 53 are connected by a cable, two weighing frames 9 and two isolation plates 10 are fixedly mounted on the output shaft of the driving motor 53, a movable cleaning roller 11 is arranged at the end of the isolation plate 10, and the weighing frame 9 on one side is engaged with the bottom end of the discharge channel 13;

[0039] The loading assembly is used to load the unloaded feed. When in use, the feed slides down along the unloading channel 13 and falls into the weighing frame 9 for storage. After the weight inside the weighing frame 9 reaches the standard, the driving motor 53 is immediately driven to drive the weighing frame 9 on one side to rotate downward and exchange positions with the weighing frame 9 on the other side. During the exchange process, the feed inside the weighing frame 9 loses its blocking effect at the position of the discharge port 6 and is then unloaded under the influence of gravity. The weighing frame 9 that reaches the specified weight is affected by the weight to fall and unload. At this time, the other weighing frame 9 will be rotated to the previous receiving position, and the excess feed in the unloading channel 13 will slide into it for loading. At the next feeding, it will continue to be supplemented on the basis of the excess feed received inside, so as to achieve the effect of fixing the unloading amount each time. The cleaning drum 11 on one side of the weighing frame 9 can clean the inner wall of the discharge box 3 when the two weighing frames 9 exchange positions. The movable cover plate 5 on the side surface of the discharge box 3 can be opened to facilitate the staff to replace and clean the internal cleaning drum 11.

[0040] The detection component includes: a connecting shaft body 50, which is fixedly installed on one side surface of the discharge box 3, a load-bearing rod 51 is arranged on the bottom surface of the connecting shaft body 50, and the load-bearing rod 51 is located on the bottom surface of the weighing frame 9 on one side and supports it, a horizontal limiting plate 48 is fixedly installed on the other side surface of the connecting shaft body 50, a connecting frame 55 is fixedly installed on the bottom surface of the horizontal limiting plate 48, a vertical limiting plate 49 is fixedly installed on one side surface of the connecting frame 55, a side surface of the connecting frame 55 away from the vertical limiting plate 49 is fixedly installed with a carrying tray 15, and two sleeve rods 43 are fixedly installed on the upper surface of the carrying tray 15, and a fixing groove is opened on one side surface of the sleeve rod 43 to facilitate its fixing, and a plurality of sleeve rods 43 are sleeved on the surface of the sleeve rod 43 for weighing The weight 42 of the load-carrying tray 15 is fixedly mounted with a fixed cover plate 44 on the upper surface of the load-carrying tray 15, and the load-carrying tray 15 can move up and down on the bottom surface of the fixed cover plate 44, and the surface of the fixed cover plate 44 is provided with a through hole for the sleeve rod 43 to pass through, and a lifting cover 45 which can be lifted and lowered is provided on the upper surface of the fixed cover plate 44, and a control rod 46 is provided at the center of the lifting cover 45, and two fixed clamping rods 47 which match with the fixed notches on the surface of the sleeve rod 43 are provided on the bottom surface of the control rod 46, and a trigger column 52 is also connected to one side surface of the transverse limiting plate 48 through a connecting shaft, and the trigger column 52 triggers the driving motor 53 by cooperating with the trigger button 54, and a contraction spring is provided between the bottom surface of the trigger column 52 and the surface of the transverse limiting plate 48;

[0041] The detection component is used to measure the weight of the feed in the loading component and unload the feed after it reaches the standard weight. When in use, the number of weights 42 is adjusted according to the required weight. The staff first pulls the load-bearing box 14 downward and installs the standard weight 42 on the surface of the sleeve rod 43, then pushes the carrying tray 15 upward to reset, and then adjusts the height of the lifting cover 45 according to the length of the sleeve rod 43. The position of the sleeve rod 43 is fixed by pulling two control rods 46 and using two fixed clamping rods 47. The load-bearing rod 51 is attached to the bottom surface of the weighing frame 9 on the loading side when in use. When the feed inside the weighing frame 9 is loaded, after the weight reaches the specified standard, the weighing frame 9 moves downward immediately and presses the lateral limiting plate 48 to lift it upward. When the lever 52 moves upward, it drives the trigger column 52 to move upward and touches the trigger button 54, so that the trigger button 54 drives the driving motor 53 to drive the two weighing frames 9 to exchange positions. After the trigger column 52 rises to a certain position, the trigger column 52 will fold downward, so it will not limit the rotation position of the load-bearing rod 51. After the load-bearing rod 51 descends with the movement of the weighing frame 9, the upper surface of the horizontal limiting plate 48 fits with the side surface of the discharge box 3, and is quickly reset with the weight of the weight 42 after the weighing frame 9 passes, and the vertical limiting plate 49 is used to fit with the side surface of the discharge box 3, and then the replaced weighing frame 9 is restricted. The horizontal limiting plate 48 and the vertical limiting plate 49 are both made of elastic buffer material, which can provide a buffer effect when contacting the surface of the discharge box 3.

[0042] The storage mechanism includes: two limiting blocks 27, the two limiting blocks 27 are respectively located on one side surface of the two barrel racks 7, a retractable fixed block 28 is provided on one side surface of the barrel rack 7, the upper surface of the limiting block 27 is provided with a touch switch 29 for driving the barrel rack 7, the bottom surface of the touch switch 29 is provided with a plurality of return springs 34, the return spring 34 is located inside the limiting block 27, the bottom surface of the touch switch 29 is also fixedly installed with a trigger pile 33, a force rod 35 is provided below the trigger pile 33, a rotating shaft 36 is provided at the center of the force rod 35, and the rotating shaft 36 can drive the force rod 35 to rotate , one side surface of the fixed block 28 is connected to one end of the force-bearing rod 35 through a connecting shaft, a material storage barrel 8 is also arranged between the barrel frames 7, a slidable sliding trigger ring 38 is arranged on the lower surface of the material storage barrel 8, and sliding switches 40 for facilitating sliding of the sliding trigger ring 38 are fixedly installed on both sides of the sliding trigger ring 38, a top block matching with the touch-pressure switch 29 is arranged on the bottom surface of the sliding trigger ring 38, a card groove 39 matching with the fixed block 28 is also provided on the surface of the material storage barrel 8, and an annular groove 41 is also provided on the bottom opening of the material storage barrel 8, and when the material storage barrel 8 is in the installed state, it is engaged with the upper surface of the fixed cylinder 16 through the annular groove 41;

[0043] The storage mechanism is used to store feed. When in use, the staff places the cleaned storage barrel 8 above the barrel rack 7. After the storage barrel 8 is placed above the barrel rack 7, it is supported by the two limiting blocks 27 and the fixed tube 16 at the bottom. At this time, the staff slides the sliding switch 40 to make the sliding trigger ring 38 descend and expose the card slot 39. When the sliding trigger ring 38 descends, the bottom convex block triggers the touch switch 29 downward. When the touch switch 29 descends, the trigger pile 33 descends accordingly and touches the force-bearing rod 35 downward. The force-bearing rod 35 rotates along the rotating shaft 36, and then the fixed card block 28 is pushed out of the barrel rack 7 and engages with the card slot 39 to fix the position of the storage barrel 8. Then the top cover above the storage barrel 8 can be opened to fill the inside with feed. Because the bottom surface of the barrel rack 7 is provided with a plurality of spring plates 32, the storage barrel 8 can be driven to shake slightly up and down synchronously when the anti-blocking component is working, so as to achieve the effect of not restricting the normal operation of the anti-blocking component.

[0044] The working principle of the present invention is as follows: when in use, the staff places the cleaned storage barrel 8 on the top of the barrel rack 7. After the storage barrel 8 is placed on the top of the barrel rack 7, the fixed card block 28 is pushed out of the inside of the barrel rack 7 by toggling the sliding switch 40, and is engaged with the card slot 39, so that the position of the storage barrel 8 is fixed, and then the top cover above the storage barrel 8 can be opened to fill the inside with feed;

[0045] The staff adjusts the speed of the servo motor 24 according to the feeding interval, so that the servo motor 24 drives the meshing toothed disc 26 to rotate. When the feeding time is reached, the rotating cylinder 12 is moved to the rear of the fixed cylinder 16, and the opening on one side of the fixed cylinder 16 is exposed, so that the feed inside is discharged from the inside of the fixed cylinder 16, and gradually rolls into the inside of the discharge box 3 along the slope of the inclined plate 17 and the discharge channel 13 for weighing and storage. When the meshing toothed disc 26 rotates to the side without meshing teeth, the meshing collar 18 loses the meshing effect with the meshing toothed disc 26, and the rotating cylinder 12 is reset to its original position, and the opening on the side of the fixed cylinder 16 is blocked again, so that the feed is blocked inside the fixed cylinder 16, so as to avoid the problem of excessive single feeding;

[0046] As the engagement of the engagement ring 18 and the engagement toothed disc 26 drives the rotating cylinder 12 to rotate, the top contact rod 23 on the bottom surface of the rotating cylinder 12 slides on the upper surface of the protrusion 21, and the rotating cylinder 12 rises due to the top contact effect, causing the fixed cylinder 16 and the storage barrel 8 to shake up and down slightly, so that the feed at the outlet is prevented from accumulating and causing blockage, and the feed discharge speed can also be accelerated;

[0047] The feed slides down along the feeding channel 13 and falls into the weighing frame 9 for storage. When the weight inside the weighing frame 9 reaches the standard, the driving motor 53 is driven to drive the weighing frame 9 on one side to rotate downward and exchange positions with the weighing frame 9 on the other side. During the exchange process, the feed inside the weighing frame 9 loses its blocking effect at the position of the discharge port 6 and is then discharged under the influence of gravity. The cleaning roller 11 on one side of the weighing frame 9 can clean the inner wall of the discharge box 3 when the two weighing frames 9 exchange positions. The movable cover plate 5 on the side surface of the discharge box 3 can be opened to facilitate the staff to replace and clean the internal cleaning roller 11;

[0048] The detection component is used to measure the weight of the feed in the loading component and unload the feed after reaching the standard weight. When in use, the number of weights 42 is adjusted according to the required weight. When loading the feed inside the weighing frame 9, after the weight reaches the specified standard, the weighing frame 9 immediately moves downward and presses the horizontal limiting plate 48 to lift it upward. When the horizontal limiting plate 48 moves upward, it drives the trigger column 52 to move upward and touches the trigger button 54, so that the trigger button 54 drives the drive motor 53 to drive the two weighing frames 9 to exchange positions. After the load-bearing rod 51 descends with the movement of the weighing frame 9, the upper surface of the horizontal limiting plate 48 fits with the side surface of the discharge box 3, and is quickly reset with the weight of the weights 42 after the weighing frame 9 passes, and uses the vertical limiting plate 49 to fit with the side surface of the discharge box 3, and then limits the replaced weighing frame 9.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A timed and quantitative feeder for experimental animals, comprising a base (1), characterized in that: A support frame (2) is fixedly mounted on the upper surface of the base (1), a material discharge box (4) is fixedly mounted on the upper surface of the support frame (2), and a material discharge mechanism is arranged inside the material discharge box (4); The discharging mechanism is composed of a material discharge component and an anti-blocking component, wherein the material discharge component comprises: a rotating cylinder (12), the rotating cylinder (12) is located inside a material discharge box (4), a material discharge channel (13) is provided inside the material discharge box (4), a fixed cylinder (16) is sleeved at the center of the rotating cylinder (12), and a fixed plate (19) is fixedly mounted on the bottom surface of the fixed cylinder (16); A weighing mechanism, the weighing mechanism is composed of a detection component and a loading component, the detection component comprising: a discharge box (3), the discharge box (3) is fixedly mounted on a side surface of a feed box (4), a rotatable movable cover plate (5) is arranged on one side surface of the discharge box (3) through an axis, a load-bearing box (14) is fixedly mounted on the other side surface of the discharge box (3), and a discharge port (6) for facilitating discharge is also provided on one side surface of the discharge box (3); the loading component comprises: a motor mounting seat (37), the motor mounting seat (37) is fixedly mounted on a side surface of the discharge box (3) and is located inside the load-bearing box (14); A storage mechanism, the storage mechanism being fixedly mounted on the upper surface of the material box (4), the storage mechanism comprising: two material barrel racks (7), the bottom surfaces of the material barrel racks (7) being provided with a plurality of spring plates (32), the two sides of the two material barrel racks (7) being connected by elastic ropes (31), the surface of the elastic ropes (31) being further provided with two hoops (30); The detection assembly comprises: a connecting shaft (50) fixedly mounted on one side surface of the discharge box (3); a load-bearing rod (51) is arranged on the bottom surface of the connecting shaft (50); a transverse limiting plate (48) is fixedly mounted on the other side surface of the connecting shaft (50); a connecting frame (55) is fixedly mounted on the bottom surface of the transverse limiting plate (48); a vertical limiting plate (49) is fixedly mounted on one side surface of the connecting frame (55); a carrying tray (15) is fixedly mounted on the side surface of the connecting frame (55) facing away from the vertical limiting plate (49); and a support tray (15) is fixedly mounted on the upper surface of the supporting tray (15). There are two sleeve rods (43), and a plurality of weights (42) for weighing are sleeved on the surface of the sleeve rods (43). A fixed cover plate (44) is fixedly mounted on the upper surface of the carrying tray (15). The carrying tray (15) can move up and down on the bottom surface of the fixed cover plate (44). A through hole is provided on the surface of the fixed cover plate (44) for the sleeve rods (43) to pass through. A liftable cover (45) is provided on the upper surface of the fixed cover plate (44). A control rod (46) is provided at the center of the lift cover (45). Two fixed clamping rods (47) are provided on the bottom surface of the control rod (46).

2. The timed quantitative feeder for experimental animals according to claim 1, characterized in that: The material discharge assembly further comprises: an engaging ring (18), the engaging ring (18) being sleeved on the bottom periphery of the rotating cylinder (12); an inclined plate (17) being fixedly mounted on the bottom surface at the center of the fixed cylinder (16); an engaging toothed disc (26) being engaged on one side surface of the engaging ring (18); a servo motor (24) being arranged below the engaging toothed disc (26); the engaging toothed disc (26) being mounted on the output shaft of the servo motor (24); a motor fixing frame (25) being arranged on the bottom surface of the servo motor (24); the bottom surface of the motor fixing frame (25) being fixedly connected to the inner upper surface of the material discharge channel (13); and a top contact rod (23) being fixedly mounted on the bottom surface of the engaging ring (18).

3. The timed quantitative feeder for experimental animals according to claim 1, characterized in that: The anti-blocking component comprises: a lifting plate (20), the lifting plate (20) being located on the bottom surface of the rotating cylinder (12), the lifting plate (20) being able to move up and down following the rotating cylinder (12), a plurality of connecting springs (22) being fixedly mounted on the upper surface of the lifting plate (20), the top surface of the connecting springs (22) being fixedly connected to the bottom surface of the fixing plate (19), and a plurality of protrusions (21) being fixedly mounted on the top surface of the fixing plate (19).

4. The timed quantitative feeder for experimental animals according to claim 1, characterized in that: The loading assembly further comprises: a driving motor (53), the driving motor (53) being arranged on the upper surface of the motor mounting seat (37), the bottom surface of the motor mounting seat (37) being provided with a trigger button (54), two weighing frames (9) and two isolation plates (10) being fixedly mounted on the output shaft of the driving motor (53), and a movable cleaning roller (11) being provided at the end of the isolation plate (10).

5. The timed quantitative feeder for experimental animals according to claim 1, characterized in that: A trigger column (52) is also connected to one side surface of the transverse limiting plate (48) via a connecting shaft, and a contraction spring is provided between the bottom surface of the trigger column (52) and the surface of the transverse limiting plate (48).

6. The timed quantitative feeder for experimental animals according to claim 5, characterized in that: The storage mechanism comprises: two limiting blocks (27), the two limiting blocks (27) are respectively located on one side surface of two barrel racks (7), one side surface of the barrel rack (7) is provided with a retractable fixed block (28), the upper surface of the limiting block (27) is provided with a touch switch (29) for driving the barrel rack (7), the bottom surface of the touch switch (29) is provided with a plurality of return springs (34), the return springs (34) are located inside the limiting block (27), the bottom surface of the touch switch (29) is also fixedly installed with a trigger pile (33), a force rod (35) is provided below the trigger pile (33), a rotating shaft (36) is provided at the center of the force rod (35), and one side surface of the fixed block (28) is connected to one end of the force rod (35) through a connecting shaft.

7. The timed quantitative feeder for experimental animals according to claim 6, characterized in that: A material storage barrel (8) is also arranged between the material barrel racks (7), a slidable sliding trigger ring (38) is arranged on the lower surface of the material storage barrel (8), and sliding switches (40) are fixedly installed on both sides of the sliding trigger ring (38) for facilitating sliding thereof, a card slot (39) is also provided on the surface of the material storage barrel (8) for matching with the fixed card block (28), and an annular groove (41) is also provided on the bottom opening of the material storage barrel (8).

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