A multi-cavity structure experimental mouse food powder crushing device

Abstract

The application discloses a kind of experimental mouse food powder crushing devices of multi-cavity structure, it is related to mouse food processing technical field, including pre-crushing bin, conveying bin and crushing bin, the conveying bin is fixedly connected to the bottom of pre-crushing bin, the crushing bin is fixedly connected to the bottom of conveying bin, the inside rotationally connected of pre-crushing bin has two pre-crushing rollers, the back of pre-crushing bin is fixedly connected with first motor, the output shaft of first motor is fixedly connected with the rear end of one pre-crushing roller, anti-blocking mechanism, the anti-blocking mechanism is arranged in the inside of pre-crushing bin, the anti-blocking mechanism includes two lateral support beams fixedly connected to the inside bottom end of pre-crushing bin, the bottom end of pre-crushing bin is fixedly connected with stand on both sides, the upper end of stand is fixedly connected with return spring, the front end of return spring is fixedly connected with connecting frame, to solve the problem that mouse food is easy to roll when contacting with roller surface, affect the pre-pulverizing processing of mouse food.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mouse feed processing, and more particularly to a multi-cavity experimental mouse feed crushing device. BACKGROUND

[0002] Experimental mice are used in biomedical research to construct human disease models, drug screening, toxicology testing, gene function research, and immunology research, and in this process, mouse feed is used to breed and feed experimental mice. In drug metabolism experiments, the particle size of the mouse feed needs to be controlled to ensure uniform distribution of the drug in the mouse feed carrier, so that the drug and mouse feed can be mixed. The experimental mouse feed crushing device is a mechanical device for crushing cylindrical mouse feed eaten by experimental mice and rats into powder or small particles.

[0003] Because the mouse feed is regular cylindrical and the single particle size is large, in order to improve the crushing efficiency and reduce the wear rate of the crushing knife, a pre-crushing roller is usually used to pretreat the mouse feed, and the primary crushing of the mouse feed is achieved through extrusion. However, during the extrusion process of the pre-crushing roller, due to the cylindrical characteristics of the mouse feed particles and their large single particle volume, the mouse feed tends to roll when it comes into contact with the roller surface, resulting in unintended axial rolling displacement of the mouse feed along the tangential direction of the roller surface. This not only destroys the effective extrusion contact state of the mouse feed, but also causes the mouse feed to move and block, affecting the crushing efficiency of the mouse feed. SUMMARY

[0004] In view of the problems in the prior art, the present application aims to provide a multi-cavity experimental mouse feed crushing device to solve the problem of mouse feed rolling when it comes into contact with the roller surface, affecting the pre-crushing process of the mouse feed.

[0005] To solve the above problems, the present application adopts the following technical solution.

[0006] A multi-cavity experimental mouse feed crushing device, comprising a pre-crushing bin, a conveying bin and a crushing bin, the conveying bin is fixedly connected to the bottom of the pre-crushing bin, the crushing bin is fixedly connected to the bottom of the conveying bin, two pre-crushing rollers are rotatably connected inside the pre-crushing bin, a first motor is fixedly connected to the back surface of the pre-crushing bin, and the output shaft of the first motor is fixedly connected to the rear end of one of the pre-crushing rollers.

[0007] The anti-blocking mechanism is arranged in the interior of the pre-crushing bin, and the anti-blocking mechanism comprises two transverse support beams fixedly connected to the two sides of the bottom end of the interior of the pre-crushing bin, the two sides of the bottom end of the interior of the pre-crushing bin are fixedly connected with vertical supports, the upper end of the vertical support is fixedly connected with a return spring, the front end of the return spring is fixedly connected with a connecting frame, the lower end of the two connecting frames is fixedly connected with a mouse food pushing frame extending upwards along the space between the two pre-crushing rollers, the interior of the connecting frame is slidably connected with a connecting sliding block, the surface of the connecting sliding block is fixedly connected with a pull rope, the front end of the transverse support beam is rotatably connected with a rotating shaft, the surface of the rotating shaft is rotatably sleeved with a winding shaft, the winding shaft is fixedly connected with the end of the pull rope away from the connecting sliding block, the side surface of the pre-crushing bin is fixedly connected with a second motor, and the output shaft of the second motor is fixedly connected with the rotating shaft.

[0008] Further, the top of the pre-crushing bin is fixedly connected with a mouse food input hopper, the bottom end of the mouse food input hopper is located between the two pre-crushing rollers, the two winding shafts are fixedly connected with a power connecting rod, the front end of the transverse support beam is fixedly connected with a support frame, the front end of the support frame is rotatably connected with a support shaft, and the pull rope is wound on the support shaft.

[0009] Further, the upper surface of the transverse support beam is fixedly connected with a plurality of protrusions, the lower surface of the mouse food pushing frame is fixedly connected with a bottom hanging plate at both ends, the surface of the bottom hanging plate is rotatably connected with a rolling shaft, and the rolling shaft rolls on the upper surface of the transverse support beam.

[0010] Further, the surface of the vertical support is slidably sleeved with a moving block, the front end of the moving block is fixedly connected with a guide rod, the guide rod is inserted into the interior of the mouse food pushing frame, and the moving block and the transverse support beam are fixedly connected with a downward spring.

[0011] Further, the surface of the winding shaft is provided with a cavity, the cavity has a structure gradually narrowing from top to bottom, the interior of the cavity is slidably connected with a positioning pin, the upper surface of the positioning pin is fixedly connected with a downward spring, the positioning pin is inserted into the interior of the rotating shaft, the side surface of the positioning pin is provided with a sliding groove, the interior of the sliding groove on the positioning pin is slidably connected with two side edge supports, the side edge supports and the positioning pin are fixedly connected with a pushing spring, the positioning pin and the rolling shaft are both made of a magnet, and the ends of the two side edge supports away from each other are rotatably connected with abutting shafts.

[0012] Further, the crushing mechanism is arranged in the interior of the crushing bin, and the crushing mechanism comprises a crushing knife rotatably connected to the middle part of the bottom surface of the interior of the crushing bin, the lower surface of the crushing bin is fixedly connected with a bottom bin, the interior of the bottom bin is fixedly connected with a third motor, the output shaft of the third motor is fixedly connected with the crushing knife, and the side surface of the crushing bin is provided with a discharge door.

[0013] Further, the inside of the conveying bin is provided with a conveying channel, which is communicated with the top of the crushing bin.

[0014] Further, the inside of the crushing bin is provided with a dispersion plate, the surface of the dispersion plate is fixedly connected with a plurality of suspension springs, and the plurality of suspension springs are all fixedly connected with the inside of the top end of the crushing bin.

[0015] Further, the inner arc surface of the crushing bin is fixedly connected with a plurality of heating sheets.

[0016] Further, the inside of the conveying bin is fixedly connected with an exhaust pipe, the longitudinal end of the exhaust pipe is fixedly sleeved with a dust collecting cylinder, the upper end inside of the dust collecting cylinder is communicated with an air inlet pipe, the inside of the air inlet pipe is fixedly connected with a suction fan, and the lower ends of the air inlet pipe and the dust collecting cylinder are both communicated with the top of the crushing bin.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] (1) The scheme drives the mouse food pushing frame to reciprocating linear displacement movement, achieves the dredging effect when the mouse food raw materials are stuck in the gap between the two pre-crushing rollers, can destroy the rolling state formed by the mouse food particles and the surface of the pre-crushing roller, reduce the residence probability of the materials between the two pre-crushing rollers, and improve the mouse food crushing efficiency.

[0019] (2) When the mouse food pushing frame reciprocating moves, the rolling shaft rolls on the surface of the transverse support beam, the mouse food pushing frame can be shaken up and down through the protruding blocks, the mouse food can be lifted up while being dredged, the situation that part of the mouse food is only pushed to translate and cannot be dredged while rolling is avoided, the dredging effect is further improved, the residence probability of the materials between the two pre-crushing rollers is reduced, and the mouse food crushing efficiency is improved.

[0020] (3) In the process that the mouse food falls into the crushing bin, the mouse food can be shaken and dispersed to each position of the crushing bin through the conical dispersion plate with holes, the situation that the mouse food is accumulated is avoided, the dispersion plate can be shaken through the connection of the suspension spring in the shaking in the crushing process, the dispersion effect is improved, the mouse food is prevented from being accumulated on the dispersion plate, and the mouse food crushing efficiency is further improved.

[0021] (4) The heating sheets can heat the mouse food in the crushing bin, so as to reduce the water content in the mouse food, avoid the caking of the mouse food in the crushing process and after the crushing is completed, and affect the uniformity of subsequent drug mixing, and the suction fan can extract the air with high water content in the crushing bin, so as to further improve the drying effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the crushing chamber of the present invention;

[0024] Figure 3 This is a schematic diagram of the pre-crushing roller section of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the rat food feeding rack of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic diagram of the structure of the winding shaft portion of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle;

[0029] Figure 8 This is a schematic diagram of the conveyor section of the present invention;

[0030] Figure 9 This is a schematic diagram of the internal structure of the conveying chamber and the crushing chamber of the present invention;

[0031] Figure 10 This is a schematic diagram of the structure of the suction fan of the present invention.

[0032] Explanation of the labels in the diagram:

[0033] 1. Pre-crushing bin; 2. Conveying bin; 3. Crushing bin;

[0034] 401. Rat food input hopper; 402. First motor; 403. Pre-crushing roller; 404. Power connecting rod; 405. Transverse support beam; 406. Second motor; 407. Rat food actuating frame; 408. Pull rope; 409. Guide rod; 410. Stand; 411. Moving block; 412. Pull-down spring; 413. Return spring; 414. Connecting frame; 415. Bottom hanging plate; 416. Rolling shaft; 417. Connecting slider; 418. Support shaft; 419. Support frame; 420. Rotating shaft; 421. Rewind shaft; 422. Cavity; 423. Positioning pin; 424. Side bracket; 425. Abutment shaft; 426. Push spring; 427. Compression spring;

[0035] 501. Conveyor; 502. Bottom bin; 503. Third motor; 504. Dispersion plate; 505. Crushing blade; 506. Suspension spring; 507. Exhaust pipe; 508. Dust collection bin; 509. Air inlet pipe; 510. Fan; 511. Heating element; 512. Unloading gate. Detailed Implementation

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0037] Please refer to Figures 1-7 A multi-cavity experimental mouse food crushing device, comprising a pre-crushing bin 1, a conveying bin 2 and a crushing bin 3, the conveying bin 2 is fixedly connected to the bottom of the pre-crushing bin 1, the crushing bin 3 is fixedly connected to the bottom of the conveying bin 2, the inside of the pre-crushing bin 1 is rotatably connected with two pre-crushing rollers 403, the mouse food can be crushed by rotating the pre-crushing rollers 403, the back of the pre-crushing bin 1 is fixedly connected with a first motor 402, the output shaft of the first motor 402 is fixedly connected with the rear end of one of the pre-crushing rollers 403.

[0038] An anti-blocking mechanism is arranged in the inside of the pre-crushing bin 1, the anti-blocking mechanism comprises two horizontal support beams 405 fixedly connected to the inside bottom of the pre-crushing bin 1, the inside bottom of the pre-crushing bin 1 is fixedly connected with a stand 410 on both sides, the upper end of the stand 410 is fixedly connected with a return spring 413, the mouse food stirring frame 407 can be moved backward by the return spring 413, the front end of the return spring 413 is fixedly connected with a connecting frame 414, the lower end of the two connecting frames 414 is fixedly connected with a mouse food stirring frame 407 extending between the two pre-crushing rollers 403, the inside of the connecting frame 414 is slidably connected with a connecting sliding block 417, the up-and-down movable connecting sliding block 417 can reduce the interference to the pull rope 408 when the mouse food stirring frame 407 is shaken, the surface of the connecting sliding block 417 is fixedly connected with a pull rope 408, the front end of the horizontal support beam 405 is rotatably connected with a rotating shaft 420, the surface of the rotating shaft 420 is rotatably sleeved with a winding shaft 421, the winding shaft 421 is fixedly connected with one end of the pull rope 408 away from the connecting sliding block 417, the pull rope 408 can be wound by the winding shaft 421, thereby pulling the mouse food stirring frame 407 to move forward, the side of the pre-crushing bin 1 is fixedly connected with a second motor 406, the output shaft of the second motor 406 is fixedly connected with the rotating shaft 420.

[0039] The top of the pre-crushing bin 1 is fixedly connected with a mouse food input hopper 401, mouse food can fall between the two pre-crushing rollers 403 through the mouse food input hopper 401, the bottom end of the mouse food input hopper 401 is located between the two pre-crushing rollers 403, two power connecting rods 404 are fixedly connected between the two winding shafts 421, the front end of the transverse support beam 405 is fixedly connected with a support frame 419, the front end of the support frame 419 is rotatably connected with a support shaft 418, the pull rope 408 is arranged on the support shaft 418, the upper surface of the transverse support beam 405 is fixedly connected with a plurality of protrusions, the protrusions can make the mouse food stirring frame 407 vibrate up and down, and the mouse food can be lifted up at the same time, the lower surface of the mouse food stirring frame 407 is fixedly connected with a bottom hanging plate 415 at both ends, the surface of the bottom hanging plate 415 is rotatably connected with a rolling shaft 416, and the rolling shaft 416 rolls on the upper surface of the transverse support beam 405.

[0040] The surface of the stand 410 is slidably sleeved with a moving block 411, the front end of the moving block 411 is fixedly connected with a guide rod 409, the mouse food stirring frame 407 can slide on the surface of the guide rod 409 to play a moving path guiding role, the guide rod 409 is inserted into the inside of the mouse food stirring frame 407, and the moving block 411 and the transverse support beam 405 are fixedly connected with a downward spring 412, so that the rolling shaft 416 is always in contact with the surface of the transverse support beam 405 and the protrusions thereof when the mouse food stirring frame 407 vibrates up and down and moves forward and backward, the surface of the winding shaft 421 is provided with a cavity 422, the cavity 422 has a structure that gradually narrows from top to bottom, the inside of the cavity 422 is slidably connected with a positioning pin 423, the upper surface of the positioning pin 423 is fixedly connected with a downward spring 427, and the downward spring 427 can push the positioning pin 423 to reinsert the rotating shaft 420 when the winding shaft 421 is at any rotating amplitude.

[0041] The positioning pin 423 is inserted into the inside of the rotating shaft 420, a sliding groove is formed in the side surface of the positioning pin 423, two side edge supports 424 are slidably connected in the sliding groove of the positioning pin 423, the side edge supports 424 and the positioning pin 423 are fixedly connected with a pushing spring 426, the pushing spring 426 makes the abutting shaft 425 always abut against the inner wall of the cavity 422, can provide resistance in the process that the positioning pin 423 inserts into the rotating shaft 420, and prolongs the time required for the positioning pin 423 to insert into the rotating shaft 420, the positioning pin 423 and the rolling shaft 416 are both made of a magnet, the rolling shaft 416 and the positioning pin 423 made of the magnet attract each other, can drive the positioning pin 423 to be pulled out of the rotating shaft 420, and the abutting shaft 425 is rotatably connected to one end of each of the two side edge supports 424 away from each other.

[0042] Through the above technical scheme, when the mouse food is crushed, the mouse food is put into the mouse food input hopper 401, and the mouse food falls between the two pre-rollers 403, and then the first motor 402 drives the pre-rollers 403 to rotate, so that the mouse food is crushed by the rotating pre-rollers 403. During the pre-crushing of the mouse food, the second motor 406 drives the winding shaft 421 to rotate, so that the winding shaft 421 winds the pull rope 408, and then drives the mouse food pushing frame 407 to move forward. At this time, the return spring 413 is in a stretched state. When the mouse food pushing frame 407 moves to the end of the horizontal support beam 405, the rolling shaft 416 made of a magnet and the positioning pin 423 are attracted to each other, so that the positioning pin 423 is pulled out of the rotating shaft 420. At this time, the winding shaft 421 can rotate on the surface of the rotating shaft 420, and the mouse food pushing frame 407 can be driven to move backward by the return spring 413. Since the diameter of the winding shaft 421 is small, the distance of the mouse food pushing frame 407 moved by the winding shaft 421 rotating one circle is also short, so that the requirement for the number of winding shaft 421 rotating circles is reduced, and the operation effect is not affected.

[0043] During the process, since the cavity 422 is wide at the top and narrow at the bottom, and the abutting shaft 425 is always abutted against the inner wall of the cavity 422 by the pushing spring 426, resistance can be provided during the process of the rolling shaft 416 moving away from the positioning pin 423, the positioning pin 423 being reinserted into the rotating shaft 420 by the lower pressing spring 427, and the time required for the positioning pin 423 being inserted into the rotating shaft 420 is prolonged. After the mouse food pushing frame 407 moves backward to the rear end of the horizontal support beam 405, the positioning pin 423 is reinserted into the rotating shaft 420 to pull the mouse food pushing frame 407 forward again, and the mouse food pushing frame 407 can move back and forth quickly. When the mouse food pushing frame 407 moves back and forth, the rolling shaft 416 rolls on the surface of the horizontal support beam 405, and the mouse food pushing frame 407 can be shaken up and down by the protrusion to lift the mouse food, so that the mouse food can be dredged, and the situation that the mouse food is only pushed and cannot be dredged is avoided, and the dredging effect is improved.

[0044] As Figures 8-10The pulverizing mechanism is arranged in the inside of the pulverizing bin 3, the pulverizing mechanism comprises a pulverizing knife 505 which is rotationally connected with the middle part of the bottom surface of the inside of the pulverizing bin 3, the lower surface of the pulverizing bin 3 is fixedly connected with a bottom bin 502, the inside of the bottom bin 502 is fixedly connected with a third motor 503, the output shaft of the third motor 503 is fixedly connected with the pulverizing knife 505, the pulverizing knife 505 can be driven to rotate at high speed by the third motor 503, so as to further pulverize the rat food, the side of the pulverizing bin 3 is provided with a discharge door 512, the pulverized rat food can be taken out through the discharge door 512, the inside of the conveying bin 2 is provided with a conveying channel 501, the rat food can slide to the middle part of the pulverizing bin 3 through the conveying channel 501 which has an inclined ramp, the conveying channel 501 is in communication with the top of the pulverizing bin 3, the inside of the pulverizing bin 3 is provided with a dispersing plate 504, the rat food can be dispersed to each position of the pulverizing bin 3 through the dispersing plate 504, so as to avoid the rat food from being accumulated, the surface of the dispersing plate 504 is fixedly connected with a plurality of suspension springs 506, the plurality of suspension springs 506 are all fixedly connected with the inside of the top of the pulverizing bin 3, the dispersing plate 504 can be shaken by the shaking caused by the pulverizing process through the connection of the suspension springs 506, so as to improve the dispersing effect and avoid the rat food from being accumulated on the dispersing plate 504.

[0045] The inside of the conveying bin 2 is fixedly connected with an exhaust pipe 507, the longitudinal end of the exhaust pipe 507 is fixedly sleeved with a dust collecting cylinder 508, the upper end of the inside of the dust collecting cylinder 508 is in communication with an air inlet pipe 509, the inside of the air inlet pipe 509 is fixedly connected with a suction fan 510, the air with high water content in the pulverizing bin 3 can be extracted through the suction fan 510, so as to further improve the drying effect, the lower ends of the air inlet pipe 509 and the dust collecting cylinder 508 are in communication with the top of the pulverizing bin 3.

[0046] Through the above technical scheme, after the pre-pulverizing treatment of the rat food is completed, the rat food falls into the conveying channel 501, the rat food slides into the pulverizing bin 3 through the conveying channel 501 which has an inclined ramp, the pulverizing knife 505 can be driven to rotate at high speed by the third motor 503, so as to further pulverize the rat food. In the process of the rat food falling into the pulverizing bin 3, the rat food can be shaken and dispersed to each position of the pulverizing bin 3 through the conical dispersing plate 504 which has holes, so as to avoid the rat food from being accumulated, and to improve the pulverizing efficiency.

[0047] In the process of crushing the mouse food, the mouse food in the crushing bin 3 can be heated by the heating sheet 511 to reduce the water content in the mouse food, so as to avoid the caking of the mouse food in the process of crushing and after the crushing is completed, and to affect the uniformity of the subsequent drug mixing. When the water in the mouse food is dried, the air with high water content in the crushing bin 3 can be extracted by the air suction fan 510, so as to further improve the drying effect, and the air can be sucked into the dust collecting cylinder 508, so that the air mixed with the mouse food powder rotates and flows in the dust collecting cylinder 508. The mouse food powder gradually falls due to the inertia generated by the rotation and the friction with the inner wall of the dust collecting cylinder 508, so that the mouse food powder is separated from the air, and the air is prevented from carrying the mouse food powder out through the exhaust pipe 507.

[0048] The above merely provides the preferred but non-limiting embodiments of the present application. Any modification, equivalent replacement or change made by any person skilled in the art within the technical scope disclosed by the present application and according to the technical solution and improvement concept of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-chamber structure experimental rat food grinding device, comprising a pre-crushing chamber (1), a conveying chamber (2), and a grinding chamber (3), wherein the conveying chamber (2) is fixedly connected to the bottom of the pre-crushing chamber (1), and the grinding chamber (3) is fixedly connected to the bottom of the conveying chamber (2); two pre-crushing rollers (403) are rotatably connected inside the pre-crushing chamber (1); a first motor (402) is fixedly connected to the back of the pre-crushing chamber (1); and the output shaft of the first motor (402) is fixedly connected to the rear end of one of the pre-crushing rollers (403), characterized in that: An anti-clogging mechanism is provided inside the pre-crushing chamber (1). The anti-clogging mechanism includes two transverse support beams (405) fixedly connected to the two sides of the bottom end inside the pre-crushing chamber (1). A stand (410) is fixedly connected to the two sides of the bottom end inside the pre-crushing chamber (1). A return spring (413) is fixedly connected to the upper end of the stand (410). A connecting frame (414) is fixedly connected to the front end of the return spring (413). A rat feed agitator (407) extending upward from the middle towards the two pre-crushing rollers (403) is fixedly connected to the lower end of the two connecting frames (414). A connecting slider (417) is slidably connected inside the connecting frame (414). A pull rope (408) is fixedly connected to the surface of the connecting slider (417). The front end of the transverse support beam (405) is rotatably connected to a rotating shaft (420), and a winding shaft (421) is rotatably sleeved on the surface of the rotating shaft (420). The winding shaft (421) is fixedly connected to the end of the pull rope (408) away from the connecting slider (417). The side of the pre-crushing chamber (1) is fixedly connected to a second motor (406), and the output shaft of the second motor (406) is fixedly connected to the rotating shaft (420). The upper surface of the transverse support beam (405) is fixedly connected to multiple protrusions. The lower surfaces of the rat food agitator (407) are fixedly connected to bottom hanging plates (415) at both ends. The surface of the bottom hanging plate (415) is rotatably connected to a rolling shaft (416), and the rolling shaft (416) rolls on the upper surface of the transverse support beam (405). The surface of the take-up shaft (421) is provided with a cavity (422), which is gradually narrowed from top to bottom. A positioning pin (423) is slidably connected inside the cavity (422). A pressure spring (427) is fixedly connected to the upper surface of the positioning pin (423). The positioning pin (423) is inserted into the interior of the rotating shaft (420). A sliding groove is provided on the side of the positioning pin (423). Two side brackets (424) are slidably connected inside the sliding groove of the positioning pin (423). A push spring (426) is fixedly connected between the side brackets (424) and the positioning pin (423). The positioning pin (423) and the rolling shaft (416) are both made of magnets. The ends of the two side brackets (424) that are far apart from each other are rotatably connected to an abutment shaft (425).

2. The experimental rat food grinding device with a multi-cavity structure according to claim 1, characterized in that: The top of the pre-crushing bin (1) is fixedly connected to a rat food input hopper (401), the bottom of the rat food input hopper (401) is located between two pre-crushing rollers (403), a power connecting rod (404) is fixedly connected between the two winding shafts (421), a support frame (419) is fixedly connected to the front end of the transverse support beam (405), a support shaft (418) is rotatably connected to the front end of the support frame (419), and the pull rope (408) is wound around the support shaft (418).

3. The experimental rat food grinding device with a multi-cavity structure according to claim 1, characterized in that: The surface of the stand (410) is slidably fitted with a movable block (411), and the front end of the movable block (411) is fixedly connected with a guide rod (409). The guide rod (409) is inserted into the interior of the rat food feeding rack (407), and a pull-down spring (412) is fixedly connected between the movable block (411) and the transverse support beam (405).

4. The experimental rat food grinding device with a multi-cavity structure according to claim 1, characterized in that: The crushing mechanism is located inside the crushing chamber (3). The crushing mechanism includes a crushing blade (505) that is rotatably connected to the center of the bottom surface inside the crushing chamber (3). A bottom chamber (502) is fixedly connected to the lower surface of the crushing chamber (3). A third motor (503) is fixedly connected inside the bottom chamber (502). The output shaft of the third motor (503) is fixedly connected to the crushing blade (505). A discharge door (512) is provided on the side of the crushing chamber (3).

5. The experimental rat food grinding device with a multi-cavity structure according to claim 1, characterized in that: The conveying chamber (2) is provided with a conveying channel (501) inside, which is connected to the top of the crushing chamber (3).

6. The experimental rat food grinding device with a multi-cavity structure according to claim 1, characterized in that: The crushing chamber (3) is provided with a dispersing plate (504) inside. Multiple suspension springs (506) are fixedly connected to the surface of the dispersing plate (504). The multiple suspension springs (506) are fixedly connected to the top of the crushing chamber (3).

7. The experimental rat food grinding device with a multi-cavity structure according to claim 6, characterized in that: Multiple heating elements (511) are fixedly connected to the inner arc surface of the crushing chamber (3). An exhaust pipe (507) is fixedly connected inside the conveying chamber (2). A dust collection cylinder (508) is fixedly sleeved on the longitudinal end of the exhaust pipe (507). An air inlet pipe (509) is connected to the upper end of the dust collection cylinder (508). A suction fan (510) is fixedly connected inside the air inlet pipe (509). The lower ends of the air inlet pipe (509) and the dust collection cylinder (508) are connected to the top of the crushing chamber (3).

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