Height-adjustable vertical lifting type anti-food-blocking automatic feeder

Abstract

This invention discloses a height-adjustable, vertically lifting, anti-jamming automatic feeder, comprising a grain bin assembly, a central chuck assembly, and a base assembly. The grain bin cylinder has a tangential wall, and its lower funnel structure has a sealed sidewall. An inner grain outlet is located at the bottom of the sidewall, and a pressure-resistant cover forms a buffer zone at the top. An outer grain outlet is opened on the tangential wall, and a movable plate is hinged to the upper edge of the outer edge of the outlet. Inside the grain bin is a vertically lifting bucket assembly, the lower grain-holding section of which has a sloping bottom and guide ears on both sides of the upper part. When the sloping surface rises, it slides against the tangential wall, and small cylinders on both sides of the sloping surface push the movable plate to rotate and open. When descending, the movable plate returns to its original position by gravity, closing the outer grain outlet. The central chuck integrates a motor base, a guide rod base, and a bowl, and slides with the central column of the base via a lifting sleeve. Bolts and holes form a multi-level height adjustment mechanism. This invention solves the grain jamming problem of existing feeders, offering adjustable height, stable grain dispensing, and reliable safety.

Description

Technical Field

[0001] This invention relates to the field of pet feeding equipment technology, and more specifically, to a height-adjustable vertical lifting anti-jamming automatic feeder. Background Technology

[0002] Currently, most automatic feeders on the market use a rotary disc structure: a motor drives a disc with several fan-shaped compartments to rotate, and cat food falls from the food bin into the compartments, then falls out at the dispensing spout as the disc rotates. However, existing technology has the following problems: First, irregularly shaped cat food, freeze-dried pieces, or large kibble can easily get stuck in the gap between the disc and the outer shell, causing the motor to stall and preventing food from being dispensed; second, the rotating disc can easily crush the cat food, producing dust and debris; third, the food dispensing rate is affected by changes in the pressure of the cat food inside the food bin, making it unstable; fourth, the fixed height of the feeding bowl cannot accommodate pets of different sizes, and long-term use is detrimental to the pet's cervical spine health. Therefore, developing an automatic feeder that can completely solve the problem of food clogging, provide a stable food dispensing rate, and has an adjustable height has significant practical value. Summary of the Invention

[0003] Purpose of the invention

[0004] The present invention aims to provide a height-adjustable vertical lifting anti-jamming automatic feeder to solve the problems of food jamming, food breakage, unstable feed output and non-adjustable height of existing rotary feeders.

[0005] Technical solution

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A height-adjustable vertical lifting anti-jamming automatic feeder includes a grain bin assembly (10), a central chuck assembly (20), a base assembly (30), and a lifting bucket assembly (40), characterized in that:

[0008] The grain storage assembly (10) is fixed above the central chuck assembly (20). The lower part of the central chuck assembly (20) is provided with a D-shaped lifting sleeve (23). The base assembly (30) is provided with a D-shaped base column (32). The lifting sleeve (23) is built into and slidably fitted inside the base column (32). Multiple hollow holes (33) are evenly opened on the longitudinal center line of the tangential plane of the lifting sleeve (23). A threaded through hole is provided at the top of the longitudinal center line of the tangential plane of the base column (32). A locking bolt (34) is installed in the threaded through hole. The end of the locking bolt (34) can be selectively inserted into any of the hollow holes (33) to form a multi-level height adjustment mechanism.

[0009] The grain storage assembly (10) includes a cylindrical grain storage body (11), a section of the cylindrical wall of the grain storage body (11) is provided with a short section of tangential plane along the vertical direction to form a vertical tangential wall; the lower part of the grain storage assembly (10) is provided with a funnel structure, one side of the funnel structure is closed to form a sealing side wall (12), and the bottom of the sealing side wall (12) is provided with an inner grain outlet (13); the top of the sealing side wall (12) is provided with a pressure-resistant cover (15), which is also the top cover of the sealing side wall (12), and a grain drop gap is left between the pressure-resistant cover (15) and the inner wall of the grain storage body (11), and a buffer zone is formed between the bottom of the pressure-resistant cover (15) and the inner grain outlet (13);

[0010] The grain storage cylinder (11) has an outlet (17) on its tangential wall. A movable plate (44) is hinged to the upper edge of the outlet (17). The movable plate (44) is connected to a reset device, which is a counterweight or an elastic element. The movable plate (44) closes the outlet (17) under the action of the reset device.

[0011] The lifting bucket assembly (40) is vertically reciprocating inside the grain storage assembly (10). The tangential wall, the slope surface (43) of the lifting bucket assembly (40), and the guide ears (42) on both sides together form a grain holding bucket. The lower part of the lifting bucket assembly (40) is provided with a grain holding section (41). The bottom of the grain holding section (41) is a slope surface (43) with an acute angle to the horizontal plane. The lifting bucket wall surface corresponding to the downward slope of the slope surface (43) slides closely against the tangential wall during the upward movement of the lifting bucket assembly (40). The upper two sides of the lifting bucket assembly (40) are respectively provided with guide ears (42). The guide ears (42) are provided with through holes (45) for the vertical guide rod (53) to pass through. Each side of the slope surface (43) near the grain outlet (17) is provided with a trigger mechanism (46).

[0012] It also includes a vertical guide rod (53), the lower end of which is fixed to the central chuck assembly (20), passes upward through the through hole (45) on the guide ears (42) on both sides of the lifting bucket assembly (40), and the upper end of which is fixed to the anti-pressure cover (15).

[0013] It also includes a crank-connecting rod mechanism, driven by a DC geared motor (50) fixed on the motor base (21) of the central chuck assembly (20). The crankshaft (51) of the crank-connecting rod mechanism is connected to the lifting bucket assembly (40) through a connecting rod (52), so that the lifting bucket assembly (40) makes linear vertical reciprocating motion between the lowest grain receiving position and the highest grain pouring position.

[0014] When the lifting bucket assembly (40) is at its lowest feeding position, the feeding section (41) is directly opposite the inner feeding port (13) at the bottom of the sealed sidewall (12). Cat food slides into the feeding section (41) through the inner feeding port (13) and fills the feeding section (41). During the upward movement, the lifting bucket wall slides against the tangential wall, and at the same time, the trigger mechanism (46) gradually approaches and pushes the movable plate (44) to rotate outward and open against the force of the reset device. When the highest feeding position is reached, the movable plate (44) is pushed to the open position, the ramp surface (43) connects with the feeding outlet (17), and the cat food rolls out of the feeding outlet (17) along the ramp surface (43). When the lifting bucket assembly (40) moves downward, the trigger mechanism (46) moves downward accordingly, and the movable plate (44) rotates inward and resets under the action of the reset device, re-closing the feeding outlet (17).

[0015] Furthermore, the buffer zone formed between the anti-pressure cover (15) and the inner food outlet (13) keeps the cat food falling from the food bin above the anti-pressure cover (15) loose and pressureless within the buffer zone, preventing the cat food from being compacted by gravity and blocking the inner food outlet (13).

[0016] Furthermore, the inner food outlet (13), the ramp surface (43) of the lifting bucket assembly (40), and the outer food outlet (17) together constitute an ultra-short food outlet path. In this ultra-short food outlet path, after the cat food slides from the inner food outlet (13) into the food holding section (41), it rolls directly out of the outer food outlet (17) along the ramp surface (43) at the highest food pouring position, without any intermediate conveying channels or turns.

[0017] Furthermore, the central chuck assembly (20) integrates a motor base (21) and a guide rod base (22), the motor is fixed to the motor base (21), and the lower end of the vertical guide rod (53) is fixed to the guide rod base (22).

[0018] Furthermore, the edge of the central chuck assembly (20) is provided with a cat food bowl (24) and a water bowl (25), with the cat food bowl (24) located directly below the food outlet (17).

[0019] Furthermore, the drinking bowl (25) is integrated with a siphon-type drinking water base (26), which is connected to a water storage tank (27) that is attached to the outer wall of the grain silo body (11).

[0020] Furthermore, the cross-sections of the base column (32) and the lifting sleeve (23) are both D-shaped with tangential planes to achieve anti-rotation and vertical guidance.

[0021] Furthermore, the height adjustment device includes multiple hollow holes (33) provided on the lifting sleeve (23) and a locking bolt (34) provided on the base column (32). The end of the locking bolt (34) can be selectively inserted into any of the hollow holes (33) to form a multi-level height adjustment mechanism.

[0022] Furthermore, the triggering mechanism (46) is a small cylinder set on both sides of the slope surface (43).

[0023] Furthermore, the cross-section of the movable plate (44) is a vertically inverted acute triangle.

[0024] Beneficial effects

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Completely solves the problem of food getting stuck: It adopts a vertical lifting bucket and a sliding sealing structure with tangential walls, without rotating compartments, valves, or narrow gap squeezing parts, so even large freeze-dried or irregularly shaped cat food will not get stuck; at the same time, the anti-pressure cover forms a buffer zone above the food outlet, keeping the cat food in a loose and pressure-free state, fundamentally eliminating compaction and blockage.

[0027] 2. Stable grain output: The grain output per batch is determined by the volume of the lifting hopper and is not affected by changes in the grain pressure inside the grain silo. The measured single grain output is stable at 11-13 grams.

[0028] 3. Shortest food dispensing path: After the cat food slides into the food holding section from the inner food outlet, it rolls directly out of the food outlet along the slope of the lifting hopper at the highest food pouring position, without any intermediate conveying channels or turns, eliminating residue and jamming.

[0029] 4. Height Adjustable: The height adjustment mechanism uses bolts and perforated holes, which is simple in structure, low in cost, reliable in locking, and has multiple adjustment ranges to suit pets of different sizes.

[0030] 5. Integrated drinking function: The siphon-type water dispenser and external water tank provide a continuous supply of clean drinking water, and are integrated with the feeding function.

[0031] 6. Safe and reliable: The movable plate closes the grain outlet, eliminating the safety hazard of pinching hands; the movable plate is automatically reset by a reset device (counterweight or elastic element), requiring no additional power or control mechanism.

[0032] 7. Linkage Trigger: Utilizing the lifting and lowering motion of the bucket itself, the opening and closing of the movable plate is triggered by a small cylinder to achieve mechanical linkage, eliminating the need for an additional control system.

[0033] 8. Compact structure and multi-purpose: The pressure-resistant cover serves as a sealing side wall top cover, a guide rod upper fixing plate, and a grain silo anti-blocking cover; the central chuck integrates the motor base, guide rod base, and bowl, with fewer parts and simple assembly. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall assembly of the present invention (front view);

[0035] Figure 2 This is a schematic diagram of the overall assembly of the present invention (rear view);

[0036] Figure 3 This is a cross-sectional view of the grain bin and lifting bucket of the present invention;

[0037] Figure 4 This is a schematic diagram of the central chuck and integrated structure of the present invention;

[0038] Figure 5 This is a cross-sectional view of the base and lifting device of the present invention;

[0039] Figure 6 This is a partially enlarged view of the sealing structure of the grain outlet of the present invention (with the movable plate in the open state).

[0040] Figure 7 This is a schematic diagram of the lifting bucket assembly structure of the present invention. Detailed Implementation

[0041] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0042] Example 1

[0043] like Figures 1 to 7 As shown in the figure, this embodiment provides a height-adjustable vertical lifting anti-jamming automatic feeder.

[0044] Overall structure:

[0045] The overall device is composed of a grain bin assembly (10), a central chuck assembly (20), and a base assembly (30) connected from top to bottom. The grain bin assembly (10) is fixed above the central chuck assembly (20). The central chuck assembly (20) slides with the base column (32) of the base assembly (30) through the lifting sleeve (23) at its lower part, and can be raised and lowered relative to the base assembly (30).

[0046] Grain silo components:

[0047] The grain bin assembly (10) includes a cylindrical grain bin body (11), a section of the cylindrical wall of which has a short tangential plane along the vertical direction, forming a vertical tangential wall. The lower part of the inner part of the cylindrical body is a funnel structure, and one side of the funnel structure is closed to form a sealing side wall (12). The bottom of the sealing side wall (12) is provided with an inner grain outlet (13). The top of the sealing side wall (12) is provided with a pressure-resistant cover (15), which is a semi-circular cover plate with a diameter smaller than the inner diameter of the grain bin body (11). A buffer zone is formed between the pressure-resistant cover (15) and the inner grain outlet (13), which keeps the cat food falling from above the pressure-resistant cover (15) loose and unpressurized, preventing the cat food from being compacted by gravity and blocking the inner grain outlet (13). The pressure-resistant cover (15) also serves as the top cover of the sealing side wall (12) and the upper fixing plate of the vertical guide rod (53). A grain outlet (17) is provided on the tangential wall. A rectangular hole (14) is provided at the bottom of the funnel for the hoisting bucket assembly (40) to pass through. A grain filling port is provided at the top of the grain silo, and a grain silo cover (16) with a built-in silicone sealing ring is provided at the grain filling port. A water storage tank (27) is hung on the outer wall of the grain silo body (11).

[0048] Grain outlet sealing mechanism:

[0049] A movable plate (44) is hinged to the upper outer edge of the grain outlet (17). The cross-section of the movable plate (44) is a vertically inverted acute triangle. The movable plate (44) is connected to a reset device, which is a counterweight or an elastic element (such as a torsion spring). In its natural state, the movable plate (44) closes the grain outlet (17) under the action of the reset device, thus sealing the grain silo. During the upward movement of the lifting bucket assembly (40), the small cylinders (46) set on both sides of the slope surface (43) contact the movable plate (44) and gradually push it outward to open it.

[0050] Lifting bucket components:

[0051] The lifting bucket assembly (40) is rectangular, with a grain holding section (41) at the bottom and a sloping surface (43) at a 45° angle to the horizontal plane. The tangential wall, the sloping surface (43) of the lifting bucket assembly (40), and the guide ears (42) on both sides together form the grain holding bucket. Guide ears (42) are provided on both sides of the upper part of the lifting bucket assembly (40), and through holes (45) are provided on the guide ears (42) for the vertical guide rod (53) to pass through. A trigger mechanism (46) is provided on each side of the sloping surface (43) near the grain outlet (17). The trigger mechanism is a small cylinder, which serves as the trigger to open the movable plate (44).

[0052] When the lifting bucket assembly (40) is at its lowest point, the food holding section (41) is directly opposite the inner food outlet (13) at the bottom of the sealed sidewall (12). Cat food slides from the bottom of the funnel through the inner food outlet (13) and fills the food holding section (41). At the highest point, the lower edge of the ramp surface (43) extends to the outside of the outer food outlet (17) and connects with the outer food outlet (17), forming a complete ultra-short downward slope channel for food dispensing. After the cat food slides into the food holding section (41) from the inner food outlet (13), it rolls directly out of the outer food outlet (17) along the ramp surface (43) at the highest dispensing position, without any intermediate conveying channels or turns.

[0053] Power and Transmission:

[0054] A DC geared motor (50) is fixed on the motor base (21) of the central chuck assembly (20), and its output shaft is connected to a crankshaft (51). The crankshaft (51) is connected to the lifting bucket assembly (40) via a connecting rod (52). The lower ends of two vertical guide rods (53) are fixed to the guide rod base (22) of the central chuck assembly (20) by threads, pass upward through the through hole (45) on the lifting bucket guide ear (42), and their upper ends are inserted into the preset hole of the anti-pressure cover (15) and fixed.

[0055] Central chuck assembly:

[0056] The central chuck assembly (20) integrates a motor base (21) and a guide rod base (22), and has a D-shaped lifting sleeve (23) at its lower part. Six hollow holes (33) are evenly opened on the longitudinal center line of the tangential plane of the lifting sleeve (23). Cat food bowls (24) and water bowls (25) are respectively provided on the edge of the central chuck assembly (20), with an angle of 135° between them. The cat food bowl (24) is located directly below the food outlet (17). A siphon-type water dispenser base (26) is integrated at the water bowl (25), which is connected to the water tank (27).

[0057] Base components and height adjustment:

[0058] The base assembly (30) includes a base disc (31) and a central D-shaped base column (32). A lifting sleeve (23) is built into and slidably fitted within the base column (32). A threaded through-hole is located at the top of the longitudinal centerline of the tangential plane of the base column (32), and a locking bolt (34) is installed in this threaded through-hole. The end of the locking bolt (34) can be selectively inserted into any one of the six perforated holes (33) on the lifting sleeve (23), forming a six-position height adjustment mechanism. During adjustment, loosen the locking bolt (34), pull upwards or press downwards on the central chuck assembly (20) to the desired height, align the locking bolt (34) with the corresponding hole, and tighten the locking bolt (34) to lock it in place. The overall feeder height adjustment range is 120mm to 220mm.

[0059] Work process:

[0060] Initial state: The lifting bucket assembly (40) is in the lowest food receiving position. The food holding section (41) is directly opposite the inner food outlet (13) at the bottom of the sealed side wall (12). Under the action of gravity, the cat food slides directly from the bottom of the funnel through the inner food outlet (13) and fills the food holding section (41). The movable plate (44) remains closed under the action of the reset device, sealing the outer food outlet (17).

[0061] Ascending: The motor (50) drives the lifting bucket to rise slowly through the crank-connecting rod mechanism. The lifting bucket wall slides upward against the tangential wall to prevent cat food from falling off this side. At the same time, the small cylinders (46) on both sides of the ramp (43) gradually approach the movable plate (44), and after contact, they begin to push the movable plate (44) to overcome the force of the reset device and rotate outward around the hinge point, gradually opening the food outlet (17).

[0062] Food Dispensing: When the lifting bucket reaches the highest dispensing position, the small cylinder (46) pushes the movable plate (44) to the fully open position, and the ramp (43) connects with the food outlet (17). Under the action of gravity, the cat food rolls directly out of the food outlet (17) along the ramp (43) and falls into the cat food bowl (24) located directly below the food outlet. The entire food dispensing path is only "inner food outlet (13) → ramp (43) → food outlet (17)", without any intermediate conveying channels or turns.

[0063] Descending: The motor continues to drive the lifting bucket to move downwards, and the small cylinder (46) moves downwards accordingly. After the movable plate (44) loses its support, it rotates inwards around the hinge point under the action of the reset device to reset, and covers and seals the food outlet (17) again. When the lifting bucket reaches the lowest position, it automatically refills the cat food, completing one cycle.

[0064] Height adjustment: Loosen the locking bolt (34), pull up or press down the center chuck assembly (20) and the upper part to the desired height, so that the locking bolt (34) is aligned with the corresponding hollow hole (33) on the lifting sleeve (23), and tighten the locking bolt (34) to lock. There are 6 adjustable heights to make the bowl suitable for pets to eat at.

[0065] Test results:

[0066] A 1:1 prototype was fabricated using 3D-printed PLA material for testing. Cylindrical cat food (8-12mm in diameter) and freeze-dried blocks (15mm on each side) were fed 100 times consecutively. Results: The amount of food dispensed per feeding remained stable at 11-13 grams, with no food jamming or blockage; the movable plate opened and closed smoothly, with reliable sealing and no risk of pinching fingers; the lifting mechanism operated smoothly, and the bolts and holes locked reliably; the siphon-type waterer supplied water normally.

[0067] Industrial applicability

[0068] The height-adjustable, vertically lifting, anti-jamming automatic food feeder described in this invention can be manufactured using conventional processes such as injection molding, 3D printing, or metal processing for its components, making assembly simple and cost-effective. This feeder can be widely used for automatic feeding of family pets, especially suitable for scenarios using irregularly shaped cat food or freeze-dried blocks, and has good industrial practicality and market promotion value.

[0069] Appendix Label Summary Table

[0070] 10 Grain silo components 30 Base assembly 11 Grain silo body 31 Base disc 12 Sealed sidewall (closed wall on one side of the funnel) 32 Base central column (D-shaped) 13 Internal grain outlet (bottom of sealed side wall) 33 Hole-cutting holes (6 holes with a diameter of 6mm, located on the chord section of the lifting sleeve) 14 rectangular hole at the bottom of the funnel 34 Locking bolt (M6, located at the top of the central column of the base). 15 Anti-pressure cover 40 Upgrade bucket components 16 Grain bin cover with built-in silicone sealing ring 41 Grain storage section 17 Grain Depot 42 Guide ear 20 Central chuck assembly 43 Sloping surface (also serving as a descending slope for grain production) 21 Motor base 44 Activity board 22 Guide rod base 45 Side through hole 23 Rising sleeve (D-shaped) 46 Trigger mechanism (small cylinder) 24 cat food bowl 50 DC geared motor 25 drinking bowl 51 crankshaft 26 Siphon water dispenser base 52 link 27 Water storage tank 53 Vertical guide rod

Claims

1. A height-adjustable vertical lifting anti-jamming automatic feeder, comprising a grain bin assembly, a central chuck assembly, a base assembly, and a lifting bucket assembly, characterized in that: The grain bin assembly is fixed above the central chuck assembly. The lower part of the central chuck assembly is provided with a lifting sleeve. The base assembly is provided with a base column. The lifting sleeve is built into and slidably fitted inside the base column. A height adjustment device is provided between the base assembly and the central chuck assembly. The height adjustment device drives the central chuck assembly and the grain bin assembly fixed thereon to perform vertical lifting and lowering movements relative to the base assembly. The grain silo assembly includes a grain silo cylinder, a portion of which has a tangential plane along the vertical direction to form a vertical tangential wall; the lower part of the grain silo assembly has a funnel structure, one side of which has a closed wall forming a sealed sidewall, and the bottom of the sealed sidewall has an inner grain outlet; the top of the sealed sidewall has a pressure-resistant cover, which also serves as the top cover of the sealed sidewall, and a grain drop gap is left between the pressure-resistant cover and the inner wall of the grain silo cylinder, and a buffer zone is formed between the bottom of the pressure-resistant cover and the inner grain outlet; The grain storage cylinder has a grain outlet on its tangential wall. A movable plate is hinged to the upper outer edge of the grain outlet. The movable plate is connected to a reset device, which is a counterweight or an elastic element. The movable plate closes the grain outlet under the action of the reset device. The lifting bucket assembly is vertically reciprocating inside the grain bin assembly. The tangential wall, the inclined surface of the lifting bucket assembly, and the guide ear walls on both sides together form a grain holding bucket. The lower part of the lifting bucket assembly has a grain holding section, the bottom of which is an inclined surface forming an acute angle with the horizontal plane. The lifting bucket wall corresponding to the downward slope of this inclined surface slides closely against the tangential wall during the upward movement of the lifting bucket assembly. The upper two sides of the lifting bucket assembly are respectively provided with guide ears, and the guide ears are provided with through holes for vertical guide rods to pass through. A small cylindrical trigger mechanism is provided at the end of each side of the inclined surface near the grain outlet. It also includes a vertical guide rod, the lower end of which is fixed to the central chuck assembly, passes upward through the through holes on the guide ears on both sides of the lifting bucket assembly, and the upper end of which is fixed to the anti-pressure cover; It also includes a crank-connecting rod mechanism driven by a motor fixed to the central chuck assembly. This crank-connecting rod mechanism is connected to the lifting bucket assembly, so that the lifting bucket assembly performs linear vertical reciprocating motion between the lowest grain receiving position and the highest grain pouring position. When the lifting bucket assembly is at its lowest feeding position, the feeding section is directly opposite the inner feeding outlet at the bottom of the sealed sidewall. Cat food slides in through this inner feeding outlet and fills the feeding section. During the upward movement, the lifting bucket wall slides tightly against the tangential wall, while the trigger mechanism gradually approaches and pushes the movable plate to rotate outward and open against the force of the reset device. When the highest feeding position is reached, the movable plate is pushed to its maximum open state, the ramp surface aligns with the feeding outlet, and the cat food rolls out of the feeding outlet along the ramp surface. When the lifting bucket assembly moves downward, the trigger mechanism moves downward accordingly, and the movable plate rotates inward and resets under the action of the reset device, resealing the feeding outlet.

2. The height adjustable, vertical lift, anti-jam, automatic feeder of claim 1, wherein: The buffer zone formed between the anti-pressure cover and the inner food outlet ensures that cat food falling from the food bin above the anti-pressure cover remains loose and unpressurized within the buffer zone, preventing the cat food from being compacted by gravity and clogging the inner food outlet.

3. The height adjustable, vertical lift, anti-jam, automatic feeder of claim 1, wherein: The inner food outlet, the ramp of the lifting bucket assembly, and the outer food outlet together form an ultra-short food outlet path. In this ultra-short food outlet path, after the cat food slides from the inner food outlet into the food holding section, it rolls directly out of the outer food outlet along the ramp at the highest food pouring position, without any intermediate conveying channels or turns.

4. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 1, characterized in that: The central chuck assembly integrates a motor base and a guide rod base. The motor is fixed to the motor base, and the lower end of the vertical guide rod is fixed to the guide rod base.

5. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 1, characterized in that: The edge of the central chuck assembly is provided with a cat food bowl and a water bowl, with the cat food bowl located directly below the food outlet.

6. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 5, characterized in that: The drinking bowl is integrated with a siphon-type drinking water base, which is connected to a water storage tank that is externally attached to the outer wall of the grain silo.

7. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 1, characterized in that: Both the base column and the lifting sleeve have a D-shaped cross-section with a tangential plane to prevent rotation and provide vertical guidance.

8. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 1, characterized in that: The height adjustment device includes multiple hollow holes on the lifting sleeve and a locking bolt on the central column of the base. The end of the locking bolt can be selectively inserted into any of the hollow holes to form a multi-level height adjustment mechanism.

9. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 1, characterized in that: The triggering mechanism is a small cylinder located on both sides of the slope.

10. The height-adjustable vertical lifting anti-jamming automatic feeder according to claim 1, characterized in that: The cross-section of the movable plate is a vertically inverted acute-angled triangle.

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