Rat-proof automatic feeder

Abstract

The invention relates to the field of feeders, and discloses a rat-proof automatic feeder which comprises a feeding cylinder, a food outlet is formed in the lower portion of the feeding cylinder, a food outlet device is arranged below the food outlet, the food outlet device is usually in a normally-closed state, the food outlet device is used for blocking the food outlet and is opened at set time, when the food outlet device is opened, blocking of the food outlet is relieved, and when the food outlet device is closed, the food outlet device is opened. Foodstuff at the bottom of the feeding cylinder sequentially passes through the food outlet and the food discharger to be eaten by animals; a supporting and protecting structure is arranged below the feeding cylinder and comprises a protecting part, the protecting part is used for isolating the food outlet device from an external mouse, the mouse cannot penetrate through the supporting and protecting structure, and a food outlet channel is formed in the bottom of the protecting part; when the food outlet device is opened, the food sequentially passes through the food outlet, the food outlet device and the food outlet channel. The feeding device can be used for feeding animals at regular time and protecting the feeding device from being attacked by mice, and is economical and practical.

Description

Technical Field

[0001] The invention relates to the field of feeders, and in particular to a mouse-proof automatic feeder. Background Art

[0002] For entertainment or production purposes, humans usually feed pets, livestock or other economic animals. Among them, feeding animals at regular times and in fixed quantities is currently a more scientific way to feed animals. Overfeeding will increase the burden on the animal's digestive system, prolong digestion time, and cause obesity and affect mobility. If mixed feed is fed, animals may only eat the food they like, resulting in unbalanced nutrition. Insufficient feeding will also affect animal health and development. In addition, the number of feedings a day is usually 2-3 times, and some feeding times are before dawn, and some feeding times are during the breeder's working hours. If manual feeding is required every time, it is very inconvenient.

[0003] Patent publication number CN203912893U discloses an automatic timed feeder, in which food automatically flows onto a tray and then the food on the tray is swept to the bottom of the tray at a fixed time.

[0004] However, in the prior art, a feeding cylinder is usually placed in the animal activity area, and a feeder is installed at the bottom of the feeding cylinder. The feeder releases food at a fixed time and in a fixed quantity to achieve the effect of feeding at a fixed time and in a fixed quantity. Since the animal activity area is usually a semi-open area, and mice are common animals in cities with strong reproductive capacity, the smell of food will attract mice to sneak in and steal food. For smaller animals, mice may also attack directly. Some animals are more valuable, such as racing pigeons, which usually cost thousands to tens of thousands of yuan. If the racing pigeon can win the competition, it can also get more bonuses. Therefore, once the racing pigeon is attacked and injured by mice, it will cause huge losses to the owner.

[0005] Currently, there are two main solutions to prevent rats from stealing food:

[0006] 1. Killing rats, but the effects of existing killing methods are often unsatisfactory: the release of rat poison can easily lead to animals accidentally eating it, and mousetraps can easily injure people and animals. Once the mousetrap is triggered, the rat will excrete urine under the stimulation, and other rats will realize the danger when they smell the urine and avoid it, making it difficult to use the mousetrap a second time.

[0007] Second, in view of the limitations of the current methods of killing rats, directly protecting the feeder can fundamentally solve the problem of rats stealing food. Once the rats find that they cannot get food no matter what, they will naturally stop coming to the animal activity area and will not attack the animals. However, since rats have a strong bite force, if the outer shell of the feeding tube is increased in hardness, more expensive materials need to be used, which will greatly increase the cost.

[0008] Therefore, there is a need for an automatic feeding device that can feed animals at regular intervals, protect the feeder from being attacked by mice, and is economical and practical. Summary of the invention

[0009] The present invention aims to provide a mouse-proof automatic feeder, which can feed animals at regular intervals, protect a feeder from being attacked by mice, and is economical and practical.

[0010] To achieve the above object, the present invention adopts the following technical scheme: a rat-proof automatic feeder, comprising a feeding cylinder, a feeding outlet is provided below the feeding cylinder, a feeding device is provided below the feeding outlet, the feeding device is usually in a normally closed state, the feeding device is used to block the feeding outlet and open at a set time, when the feeding device is opened, the blocking of the feeding outlet is released, and the food at the bottom of the feeding cylinder passes through the feeding outlet and the feeding device in sequence for the animal to eat;

[0011] A supporting protective structure is provided under the feeding barrel, and the supporting protective structure includes a protective part, which is used to isolate the feeder from mice outside. Mice cannot pass through the supporting protective structure, and a food outlet channel is provided at the bottom of the protective part; when the feeder is opened, food passes through the feeding port, the feeder and the food outlet channel in sequence.

[0012] The beneficial effects of this program are:

[0013] 1. Rats are rodents, which are extremely destructive and have strong jumping ability. As long as the feeding tube is not placed in a closed area, the rats may find the feeding tube and determine the location of the feeding outlet;

[0014] After research, it was found that for economic and practical reasons, most feeding tubes on the market are made of stainless steel and the feeder is made of plastic. The feeder contains components such as motors, which are not easy to make by yourself. It is more economical to buy the finished product directly. Therefore, the plastic feeder becomes the weak point of the entire feeder and is more likely to be gnawed by mice.

[0015] Usually, the jumping height of mice is between 30-70cm. Even if the feeding opening is more than 30cm from the ground, mice can still jump and enter the feeder, destroy the structure of the feeder, and obtain food.

[0016] Therefore, in this solution, a supporting and protective structure is specially set up to isolate and protect the feeder, so as to prevent mice from jumping up and biting the feeder to damage it. No matter how the supporting and protective structure is damaged and deformed, as long as the mice cannot pass through the supporting and protective structure, it will not have any impact on the food output of the feeder, and it is not easy to cause the feeding tube and the feeder at the lower end to deform and cause the food to flow out of the feeding port uncontrollably, thereby avoiding attracting mice to continue to hit. In addition, the mice can neither bite the feeder nor the supporting and protective structure, nor can they be stimulated to urinate or make various marks through smell.

[0017] In addition, there is no need to replace high-strength materials, and common metal protective structures can be used, which is easy to process and manufacture. Thus, the effect of feeding animals on time and protecting the feeder from attacks by mice can be achieved, and it is economical and practical.

[0018] 2. This solution provides a food outlet channel at the bottom of the protective part to ensure that the food can smoothly fall to a position where the animals can eat it during feeding time.

[0019] 3. After research, it was found that the maximum height that a mouse can reach when standing does not exceed 15 cm. Therefore, the height of the bottom of the protective part from the ground is usually set to be greater than 15 cm (this solution is set to 20 cm), so that the mouse can only jump up to attack the protective part. The mouse cannot use leverage in the air, thereby reducing the damage to the protective part caused by the mouse.

[0020] 4. The inventor designed the feeder based on the racing pigeon feeder and expanded the application scope of the feeder to all animals fed by humans (such as chickens, ducks, geese, pigs, dogs, cats, etc.), with the main purpose of preventing rats and improving the degree of automation of the feeding process.

[0021] 5. For some feeder wires that are easily taken by mice, you can apply butter on the wires. The butter will corrode the mouse's intestines and stomach, causing the mouse to automatically stay away from the wires.

[0022] Furthermore, the protection part is a cylindrical tube with an opening facing upward, and a support tube is provided at the bottom of the feeding tube, the support tube opening faces downward, and the support tube is accommodated in the protection part. In this way, the feeder is doubly protected to prevent the feeder from being attacked by mice.

[0023] Furthermore, the protection part includes a cylindrical frame, and the sides and bottom of the cylindrical frame are provided with protection nets, and the grain outlet channel is the mesh of the protection net at the bottom of the protection part.

[0024] Furthermore, the supporting and protective structure includes a supporting portion, which includes a plurality of supporting legs circumferentially arranged on the lower side of the protective portion, a disperser is provided at the center below the protective portion, the disperser includes a conical portion, an impact portion is provided at the upper end of the conical portion, and the slope of the side surface of the impact portion is greater than the slope of the side surface of the conical portion; the area between the disperser and the supporting legs is the feeding area of ​​the animal.

[0025] Furthermore, the gap between the legs is used for the animal's head to pass through for feeding, and the gap between the legs is smaller than the animal's body width. This arrangement prevents the animal from entering the feeding area and soiling the food, thereby ensuring that the food is clean and hygienic.

[0026] Furthermore, protective nets are provided on the sides and bottom of the protective part, and the grain outlet channel is the mesh of the protective net at the bottom of the protective part.

[0027] Furthermore, the protection part is a rectangular frame, and the supporting protection structure also includes a support part, which includes legs respectively arranged at four corners of the bottom of the rectangular frame, and a tray is arranged between the four legs, and the width of the tray is smaller than the distance between adjacent legs. This arrangement makes it easy to take out the tray for cleaning.

[0028] Furthermore, the feeder and the feeding tube are designed to be separated, and the feeder is connected to the supporting and protective structure. This arrangement makes it easy to remove the feeding tube separately for cleaning.

[0029] Furthermore, it also includes a heightening cylinder, the lower end of which is detachably connected to the upper end of the feeding cylinder, the heightening cylinder is used to increase the capacity of the feeding cylinder, and the top of the heightening cylinder is detachably connected to the bottom of another heightening cylinder. This arrangement is convenient for extending the cycle of supplementing food, and when the breeder is away for a long time, the food in the cylinder can meet the food supply for a longer time.

[0030] Furthermore, the food dispensing device comprises a shell, on which a food dispensing motor, a food dispensing rotating shaft and a timer are arranged, the output shaft of the food dispensing motor is arranged horizontally and connected to the food dispensing rotating shaft, the food dispensing rotating shaft is provided with a food dispensing switch, and the food dispensing switch drives the food at the bottom of the feeding cylinder to fall out by rotating;

[0031] The timer is connected to the food dispensing motor, and the timer is used to control the starting time and running time of the food dispensing motor.

[0032] Furthermore, the food dispensing switch comprises an impeller, the impeller comprises a wheel disc, a plurality of moving blades are arranged circumferentially on the wheel disc, and side stop structures are respectively arranged on the front and rear sides of the wheel disc;

[0033] The side block structure, the wheel disc and the two moving blades are used to seal the food outlet;

[0034] When the feeder is opened, the food leaves the feed outlet as the moving blades rotate.

[0035] Furthermore, a grain blocking brush is provided in the shell to block food, that is, during non-feeding time, it is used to prevent food from falling directly from the gap between the impeller and the food outlet; during feeding time, the impeller rotates to drive the food to break through the obstruction of the grain blocking brush, thereby completing food discharge; in addition, the grain blocking brush can produce an upward reaction force on large particles of food, preventing large particles of food from being stuck between the moving blades, thereby avoiding food jam.

[0036] Furthermore, the food dispensing switch includes a blocking part, which blocks the food dispensing port when the blocking part rotates to above the food dispensing shaft; when the blocking part moves away from above the food dispensing shaft, the opening of the food dispensing port expands, and the food flowing out of the food dispensing port gradually increases.

[0037] Furthermore, the food dispensing switch also includes a stirring portion, and when the stirring portion rotates above the food dispensing shaft, the stirring portion partially invades the food dispensing port.

[0038] Furthermore, the supporting and protective structure includes a protective part with an opening facing upward, and also includes a supporting barrel with an opening facing downward, the food dispenser is fixed in the supporting barrel, the supporting barrel is accommodated in the protective part, and supporting legs are arranged under the protective part.

[0039] Furthermore, the blocking portion is a shell with a fan-shaped cross section, and a transfer opening is provided on a straight side of the fan-shaped cross section, and food enters and exits the inside of the blocking portion through the transfer opening.

[0040] This solution also has the following effects:

[0041] 1. The amount of food discharged by the feeding motor can be adjusted, that is, the amount of food discharged is adjusted by the running time. The feeding motor rotates at a constant speed, and the running time is controlled by a timer, and the time of the timer is usually accurate to seconds, thereby ensuring that the feeding time is strictly controlled by the breeder.

[0042] 2. The bottom of the feeding tube is designed to be an inverted cone to prevent food from accumulating at the bottom of the feeding tube, ensuring that the food will eventually fall into the feeding port instead of accumulating in the bottom corner of the feeding tube to rot.

[0043] 3. Place the tray between the legs instead of directly under them, so that you can easily take out and clean the tray at any time. Similarly, the feeding tube and the feeder are designed to be separated, so that you can easily take out and clean the feeding tube separately.

[0044] 4. In order to reduce the food attached to the blocking part or the stirring part, this solution uses a grain-blocking brush to brush off the attached food. After brushing the attached food together, the food enters the groove formed between the moving blades along the inclined direction of the grain-blocking brush. After the groove passes the position of the grain-blocking brush, the groove rotates to open downward, and the food in the groove falls under the supporting protection structure.

[0045] 5. The feeder of this scheme adopts a horizontally arranged feed shaft, half of which is a blocking part with a semicircular cross-section, and the other half is a plurality of plate-shaped stirring parts. During the rotation of the feed shaft, part of the blocking part and the stirring part will penetrate through the feed outlet into the feeding tube, thereby stirring the food in the feeding tube and preventing food from getting stuck.

[0046] 6. After the food falls, it collides with the impact part of the disperser and scatters. The more food there is in the feeding tube, the faster the food at the bottom falls, the greater the force of the collision with the impact part, and the farther the distance between the location where the food falls after being scattered and the impact part. When it is found that the location where the food falls after being scattered is close to the impact part, it means that the food in the feeding tube should be replenished.

[0047] 7. To further enhance effect 3 and make the food drop position more obvious, in this solution, the blocking part is designed as a hollow shell. When the blocking part rotates to below the food outlet shaft, most of the food enters the blocking part through the transfer opening. When the transfer opening faces downward, the food in the blocking part pours down.

[0048] With such an arrangement, the rotation speed of the food discharging shaft can be reduced to ensure that as much food as possible enters the sealing part, and then as much food as possible impacts the impact part of the disperser at one time, so that the friction effect on the food becomes smaller, and the food remaining on the disperser is reduced, so that the food falls into the animal's feeding area as much as possible, and the situation where the food falls on the disperser and cannot be eaten by the animal is reduced, otherwise it will attract mice.

[0049] When the food in the feeding tube decreases, the food passing through the sealing part after the feeding shaft rotates one circle will also be significantly reduced, and the food remaining on the disperser will increase, thereby reminding the owner to replenish the food in the feeding tube.

[0050] 8. To reduce food waste, the disperser can be directly eliminated, the feeding area can be expanded, and the animals can directly enter the supporting and protective structure to feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is the front view of Example 1;

[0052] Figure 2 is a cross-sectional view of Example 1;

[0053] Figure 3 A three-dimensional diagram of the food dispensing switch of Example 1;

[0054] Figure 4 is a cross-sectional view of Example 3;

[0055] Figure 5 A three-dimensional diagram of the supporting and protective structure of Example 3;

[0056] Figure 6 is a cross-sectional view of Example 4;

[0057] Figure 7 This is a three-dimensional diagram of the food dispensing switch of Example 4. DETAILED DESCRIPTION

[0058] The following is further described in detail through specific implementation methods:

[0059] The figure marks in the drawings of the specification include: feeding barrel 1, feeding port 11, supporting and protective structure 2, cage 21 legs 22, protective part 23, tray 3, shell 41, feeding motor 42, feeding shaft 43, expansion section 44, grain blocking brush 45, impeller 51, wheel disc 52, moving blades 53, blocking part 54, transfer opening 55, stirring plate 56, perforation 57, supporting barrel 6, ventilation hole 61, disperser 7, conical part 71, impact part 72.

[0060] Example 1

[0061] Example 1 is basically as Figure 1-Figure 3 Shown: A rat-proof automatic feeder, which includes a feeding tube, a supporting protection structure and a tray from top to bottom.

[0062] The feeding cylinder is an aluminum cylinder with a conical barrel cover. The barrel cover is weighted to increase the stability of the feeding cylinder and prevent it from being knocked over by mice when there is less food inside the feeding cylinder. The feeding cylinder is used to hold animal food. The inner side of the bottom surface of the feeding cylinder is an inverted cone, and a feeding outlet is opened at the center of the bottom surface of the feeding cylinder, that is, the feeding outlet is located at the lowest position of the feeding cylinder. The feeding outlet can be a circular hole. In this embodiment, the feeding outlet is a rectangular hole.

[0063] The supporting protection structure includes a protection part and a supporting part. The protection part can be a rectangular mesh cage. The protection part and the bottom of the feeding tube are welded. The height of the protection part is 20 cm. A feeder is provided inside the protection part. The protection part has corresponding gaps at the positions of the feeder port and the feeder. A supporting part is provided on the lower side of the protection part. The supporting part includes four legs. The four legs are respectively welded to the four corners of the bottom of the protection part. The height of the legs is 20 cm. The tray is square and placed between the four legs.

[0064] The feeder is used to block the feeding port and open it at a fixed time; when the feeder is opened, the blocking of the feeding port is released, and the feeder slides over the food at the bottom of the feeding tube. The food passes through the feeding port, the feeder and the supporting and protective structure in turn, and finally falls under the supporting and protective structure for the animal to eat. Specifically, the feeder includes a shell, which is welded to the bottom of the feeding tube, and the upper and lower center positions of the shell are provided with openings for the food to pass through, such as Figure 3 As shown, a food dispensing motor is bolted to the shell, and the food dispensing motor can be controlled by a controller to rotate several circles at a fixed time or a fixed time interval. This is the prior art and will not be described in detail. The output shaft of the food dispensing motor is horizontally arranged and key-connected to one end of the food dispensing shaft, and the other end of the food dispensing shaft is inserted from the inside of the shell and rotatably connected to the shell.

[0065] The length of the food dispensing shaft is divided into a basic section and an extended section. The length of the basic section is adapted to the width of the food intake opening. Figure 2The horizontal direction of the middle feeding port is the length direction, and the direction perpendicular to the paper surface is the width direction. A feeding switch is provided on the basic section, and the feeding switch is used to block and open the feeding port; the feeding switch includes an impeller, and the impeller includes a wheel disc. The basic section passes through the wheel disc and is welded to the wheel disc. A plurality of moving blades are integrally formed circumferentially on the wheel disc, and side stop structures are respectively provided on the front and rear sides of the wheel disc; in this embodiment, a part of the shell is used as a side stop structure on the side of the wheel disc close to the feeding motor, and the diameter of the extended section of the feeding shaft is larger than that of the wheel disc. The extended section serves as a support structure on the side of the wheel disc away from the feeding motor, and the top of the extended section can be abutted against the lower surface of the feeding cylinder. Since the extended section has a circular cross-section, there will inevitably be some gaps between the extended section and the feeding cylinder. The gap can be reduced as much as possible, or it can be ensured that the food in the feeding cylinder cannot pass through these gaps.

[0066] When the food discharging motor stops working, the housing, the wheel disc, the extension section and the two moving blades are enclosed to complete the blocking of the food discharging port; Figure 2 As shown, the moving blades used for blocking are not necessarily adjacent, and the distance between the two moving blades is determined by the length of the feeding port to achieve the blocking effect. When the feeder is opened, the food rotates with the moving blades to leave the feeding port, and when the moving blades rotate to below the feeding shaft, the food between the moving blades has all fallen down.

[0067] If the food between the moving wheels is full when the food outlet is blocked, the food will be squeezed from the basic section into the expansion section when the food outlet shaft rotates, thereby reducing the food between the moving wheels and ensuring smooth rotation of the food outlet shaft. Figure 2 As shown, in this solution, a grain blocking brush is provided in the shell, and the brush handle of the grain blocking brush is connected to the inner bolt of the shell. The grain blocking brush blocks food from falling directly and prevents food from getting stuck. The length of the grain blocking brush is greater than the basic section length of the food dispensing shaft. In this embodiment, the length of the grain blocking brush is equal to the sum of the lengths of the basic section and the extended section of the food dispensing shaft.

[0068] In addition, it also includes at least one heightening tube, which is used to increase the capacity of the feeding tube. The lower end of the heightening tube is used for threaded connection with the feeding tube, and the top of the heightening tube is used for threaded connection with the bottom of another heightening tube.

[0069] Example 2

[0070] The difference between Example 2 and Example 1 is that the protection part is a rectangular frame, the sides and bottom of the rectangular frame are welded with protection nets, and the grain outlet channel is the mesh of the protection net at the bottom of the protection part. Two long strip support plates are welded on both sides of the upper side of the rectangular frame, and the support tube is a rectangular tube, and the bottom of the support tube is supported on the support plate.

[0071] Example 3

[0072] The difference between Example 3 and Example 1 is that: Figure 4 , Figure 5As shown, it also includes a supporting barrel with an opening facing downward, the supporting protective structure includes a protective part of a cage structure with an opening facing upward, the supporting barrel is accommodated in the protective part, the feeder is fixed in the supporting barrel, the shell of the feeder and the supporting barrel are welded, and a plurality of ventilation holes are opened on the side wall of the supporting barrel. In this embodiment, the ventilation holes are in the shape of an arch, the side wall of the protective part is composed of a plurality of vertically equidistant vertical poles, the bottom of the protective part is composed of a plurality of equidistant horizontal poles, and a plurality of vertical legs are welded circumferentially on the lower edge of the protective part, and the gap between the legs is used for the animal's head to pass through for food, and the gap between the legs is smaller than the width of the animal's body.

[0073] The tray is circular and supported by legs. A disperser is welded at the center of the tray. The disperser includes a conical portion. A bullet-shaped impact portion is integrally formed on the upper portion of the conical portion. The side of the impact portion is perpendicular to the ground. The area between the disperser and the legs is the feeding area for animals.

[0074] Example 4

[0075] The difference between Example 4 and Example 4 is that: Figure 6 , Figure 7 As shown, the food dispensing switch includes a blocking part and a stirring part. The blocking part is a shell in a coaxial semi-cylindrical shape welded to the food dispensing shaft 43, and a transfer opening is provided on the semicircular straight side of the blocking part; the stirring part is three stirring plates, one side of the three stirring plates is welded to the food dispensing shaft, and the angles between the three stirring plates are 45°. The stirring plates are all provided with rectangular through-holes to ensure that the food between the stirring plates can enter the blocking part through the through-holes.

[0076] When the blocking part rotates to above the food discharging shaft, the blocking part blocks the food discharging port; when the blocking part is away from above the food discharging shaft, the opening of the food discharging port expands, and the food flowing out of the food discharging port gradually increases; when the stirring part rotates to above the food discharging shaft, the stirring part partially invades the food discharging port.

[0077] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rat-proof automatic feeder, comprising a feeding cylinder, a feeding outlet is provided below the feeding cylinder, a feeding device is provided below the feeding outlet, the feeding device is usually in a normally closed state, the feeding device is used to block the feeding outlet and open at a set time, when the feeding device is opened, the blocking of the feeding outlet is released, and the food at the bottom of the feeding cylinder passes through the feeding outlet and the feeding device in turn for the animal to eat; Features: A supporting protective structure is provided under the feeding barrel, and the supporting protective structure includes a protective part, which is used to isolate the feeder from mice outside. Mice cannot pass through the supporting protective structure, and a food outlet channel is provided at the bottom of the protective part; when the feeder is opened, food passes through the feeding port, the feeder and the food outlet channel in sequence.

2. The rat-proof automatic feeder according to claim 1, characterized in that: The protection part is a cylindrical tube with an opening facing upwards. A supporting tube is arranged at the bottom of the feeding tube, the opening of the supporting tube faces downwards, and the supporting tube is accommodated in the protection part.

3. The rat-proof automatic feeder according to claim 2, characterized in that: The protection part comprises a cylindrical frame, the side and bottom of the cylindrical frame are provided with protection nets, and the grain outlet channel is the mesh of the protection net at the bottom of the protection part.

4. The rat-proof automatic feeder according to claim 3, characterized in that: The supporting and protective structure includes a supporting part, which includes a plurality of supporting legs circumferentially arranged on the lower side of the protective part. A disperser is provided at the center below the protective part. The disperser includes a conical part, and an impact part is provided at the upper end of the conical part. The area between the disperser and the supporting legs is the feeding area of ​​the animal.

5. The rat-proof automatic feeder according to claim 1, characterized in that: The sides and bottom of the protection part are provided with protection nets, and the grain outlet channel is the mesh of the protection net at the bottom of the protection part.

6. The rat-proof automatic feeder according to claim 5, characterized in that: The protection part is a rectangular frame, and the supporting protection structure also includes a support part, which includes legs respectively arranged at four corners of the bottom of the rectangular frame, a tray is arranged between the four legs, and the width of the tray is smaller than the distance between adjacent legs.

7. The rat-proof automatic feeder according to claim 1, characterized in that: The feeder and the feeding tube are designed to be separated, and the feeder is connected to the supporting and protective structure.

8. The rat-proof automatic feeder according to claim 1, characterized in that: It also includes a heightening tube, the lower end of which is used for detachable connection with the upper end of the feeding tube, the heightening tube is used to increase the capacity of the feeding tube, and the top of the heightening tube is used for detachable connection with the bottom of another heightening tube.

9. The rat-proof automatic feeder according to claim 1, characterized in that: The bottom of the feeding tube is inverted cone shape.

10. The rat-proof automatic feeder according to claim 1, characterized in that: The food dispensing device comprises a shell, on which a food dispensing motor, a food dispensing rotating shaft and a timer are arranged, the output shaft of the food dispensing motor is arranged horizontally and connected to the food dispensing rotating shaft, the food dispensing rotating shaft is provided with a food dispensing switch, and the food dispensing switch drives the food at the bottom of the feeding cylinder to fall out by rotating; The timer is connected to the food dispensing motor, and the timer is used to control the starting time and running time of the food dispensing motor.

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