A rope and pulley cat litter box linkage ejection feeding device

By using a rope pulley-type cat scratching tube linkage to push out the feeding device, which is driven by the cat's scratching action, a quantitative snack feeding can be achieved without electricity. This solves the problems of existing devices relying on power and having poor interactivity, and improves the fun and safety of pet feeding devices.

CN122397640APending Publication Date: 2026-07-17陈兴源

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
陈兴源
Filing Date
2026-06-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Most existing pet feeding devices are electric timed feeders, which rely on power and lack mechanical interaction with pets, making them less fun and less training-oriented.

Method used

A rope pulley type cat scratching tube linkage feeding device was designed. It is driven by the scratching action of cats and realizes automatic feeding of treats through the mechanical transmission of rope and pulley. It includes a freeze-drying chamber, a pulley ring cover, a feeding rod, a cat scratching tube, a central tube, a return spring and a base. It is made of PVC and PP or ABS materials, which conforms to the scratching habits of cats and realizes quantitative feeding.

Benefits of technology

It requires no electricity, is highly interactive, has a compact structure, smooth transmission, provides quantitative feeding, is safe and environmentally friendly, caters to cats' scratching habits, increases pet activity, and enhances fun and trainability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a rope-pulley type cat scratching tube linked ejection feeding device, belonging to the field of pet supplies technology. The device includes a freeze-drying chamber, a pulley ring cover, an ejection rod, a central tube, a cat scratching tube, a return spring, and a base. The freeze-drying chamber is fixed above the ring cover; the ring cover is fitted onto the top of the tube and has pulleys; the ejection rod is placed inside the tube, with an inclined rod at the top aligned with the freeze-drying chamber's outlet, and a ring, a fixing hook, and a small crossbar at the bottom; the cat scratching tube is fitted onto the outside of the tube; the base has a crossbar; the return spring connects the small crossbar and the crossbar; one end of the rope is connected to the top of the cat scratching tube, and the other end is connected to the fixing hook after the pulley is reversed. When the cat scratching tube moves downwards, it drives the rope, which, after the pulley is reversed, pulls the ring, causing the ejection rod to move upwards and eject the treat, stretching the spring; after the external force disappears, the spring contracts, the ejection rod moves downwards, and the rope drives the cat scratching tube upwards to return to its original position. This invention requires no electricity, has strong interactivity, and provides smooth transmission.
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Description

Technical Field

[0001] This invention belongs to the field of pet supplies technology, specifically relating to a mechanical linkage feeding device driven by a pet's scratching action. Background Technology

[0002] With the increasing popularity of pet ownership, the interactivity and automation of pet supplies are receiving more and more attention. Most existing pet feeding devices are electric timed feeders, requiring power, with complex structures, high costs, and lacking mechanical interaction with the pet. Furthermore, some manual feeding toys have limited functionality, failing to achieve the "scratch and feed" linkage effect, and lacking in fun and training value. Summary of the Invention

[0003] Purpose of the invention

[0004] The present invention aims to provide a rope pulley-type cat scratching tube-linked feeding device that automatically dispenses treats using the scratching action of a cat without the need for electricity, in order to solve the problems of poor interactivity, complex structure and dependence on power supply in the prior art.

[0005] Technical solution

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

[0007] A rope pulley type cat claw cylinder linkage ejection feeding device includes:

[0008] Freeze-drying chamber (10), pulley ring cover (20), ejector rod (30), cat claw tube (40), central tube (50), return spring (60) and base (70);

[0009] The freeze-drying chamber (10) is funnel-shaped and is locked and fixed above the pulley block cover (20);

[0010] The pulley ring cover (20) is tightly fitted on the top of the central tube (50), and the edge of the pulley ring cover (20) is evenly distributed with a number of grooved pulleys (21).

[0011] The ejector rod (30) is built into the central tube (50) and can slide up and down. The upper part of the ejector rod (30) is a slope, and the top of the slope is aligned with the discharge port of the freeze-drying chamber (10). The bottom of the ejector rod (30) is provided with a ring, and the edge of the ring is provided with a fixing hook for connecting the rope (42). A small crossbar (31) is provided at the center of the ring.

[0012] The cat scratching tube (40) can be slidably fitted onto the outside of the central tube (50), and the top of the cat scratching tube (40) is provided with a rope fixing ring (41).

[0013] The base (70) is located at the bottom of the device. The base (70) is composed of several inclined legs (71) and leg sleeves (72). A crossbar (73) is provided on the base (70).

[0014] The return spring (60) is connected between the small crossbar (31) of the bottom ring of the ejector rod (30) and the crossbar (73) of the base (70);

[0015] A rope (42) is connected to the rope fixing ring (41) at the top of the cat claw tube (40). The rope (42) extends upward and passes through the grooved pulleys (21) on the pulley group ring cover (20) in sequence before changing direction and then connecting downward to the fixing hook on the bottom ring edge of the push rod (30).

[0016] When the cat scratching tube (40) moves downward, the rope fixing loop (41) at the top of the cat scratching tube (40) drives the rope (42) downward. After the rope (42) changes direction through the grooved pulley (21), it pulls the ejector rod (30) upward, causing the ejector rod (30) to move upward. At the same time, the return spring (60) is stretched. When the external force is released, the return spring (60) contracts, driving the ejector rod (30) downward. The ejector rod (30) changes direction through the rope (42) and the grooved pulley (21), driving the cat scratching tube (40) to return upward in the opposite direction.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. No electricity required: It is powered entirely by the mechanical energy of pets scratching, making it energy-saving, environmentally friendly, and safe to use.

[0020] 2. Highly interactive: Cats can get treats by scratching the scratching tube, which encourages positive behavior and increases the pet's activity level.

[0021] 3. Compact structure: All components are arranged coaxially, which maximizes space utilization and results in an aesthetically pleasing appearance.

[0022] 4. Smooth transmission: The transmission uses a flexible nylon rope and pulley block for reversing, and is equipped with a return spring, ensuring smooth, reliable and wear-resistant operation.

[0023] 5. Quantitative feeding: The inclined surface of the ejector rod lifts 1-2 freeze-dried fruits each time, realizing automatic quantitative feeding and avoiding overfeeding.

[0024] 6. Safe and durable materials: The central tube and cat scratch tube are made of PVC pipe, which is high in strength and scratch-resistant; the surface of the cat scratch tube is wrapped with sisal rope, which is in line with the scratching habits of cats; other parts are made of PP or ABS materials, which are non-toxic, environmentally friendly, impact-resistant and easy to mold. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the freeze-drying chamber.

[0028] Figure 4 This is a schematic diagram of the ejector rod structure;

[0029] Figure 5 This is a top view of the pulley block cover.

[0030] Figure 6 A schematic diagram of the base structure.

[0031] Explanation of markings in the diagram:

[0032] 1-Feeding device assembly; 10-Freeze-drying chamber; 20-Pulley assembly cover; 21-Groove pulley; 30-Ejector rod; 31-Small crossbar at the bottom of ejector rod; 40-Cat scratcher tube; 41-Rope fixing ring at the top of cat scratcher tube; 42-Rope; 50-Central tube; 60-Reset spring; 70-Base; 71-Angled support leg; 72-Support leg sleeve; 73-Base crossbar. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] Example 1

[0035] like Figures 1 to 6 As shown, the rope pulley type cat scratching tube linkage ejection feeding device (1) provided in this embodiment includes a freeze-drying chamber (10), a pulley ring cover (20), an ejection rod (30), a central tube (50), a cat scratching tube (40), a return spring (60), and a base (70) arranged sequentially from top to bottom.

[0036] Material description:

[0037] The central tube (50) and the cat scratch tube (40) are both made of PVC (polyvinyl chloride) pipe, which has the characteristics of high strength, scratch resistance and not easy deformation.

[0038] • The outer surface of the cat scratching tube (40) is tightly wrapped with sisal rope for the cat to scratch, which conforms to the cat's scratching habits and increases friction, making it easier for the cat scratching tube (40) to be moved downward.

[0039] • The rope (42) is made of flexible nylon rope, which has good wear resistance, smooth transmission, and long service life.

[0040] The freeze-drying chamber (10), pulley ring cover (20), ejector rod (30), base (70), and other components such as the top rope fixing ring (41) of the cat scratching tube are all made of PP (polypropylene) or ABS (acrylonitrile-butadiene-styrene copolymer), which have the advantages of being non-toxic, environmentally friendly, impact-resistant, and easy to mold and process.

[0041] Structural description:

[0042] The freeze-drying chamber (10) is funnel-shaped and is locked and fixed above the pulley ring cover (20). The funnel-shaped design allows the freeze-dried food to automatically concentrate at the bottom under the action of gravity, ensuring that the next freeze-dried food can be successfully placed after each feeding.

[0043] The pulley block cover (20) is tightly fitted onto the top of the central tube (50), and its edge has three grooved pulleys (21) evenly distributed. The layout of the three pulleys ensures the balance of the tension of the flexible nylon rope (42).

[0044] The ejector rod (30) is built into the central tube (50) and can slide up and down. The upper part of the ejector rod (30) is a slope, which is used to support the freeze-drying process; the bottom of the ejector rod (30) is provided with a ring, the outer diameter of which is slightly smaller than the inner diameter of the central tube (50) to ensure smooth sliding and no wobbling. The edge of the ring is provided with a fixing hook for connecting a flexible nylon rope (42); a small crossbar (31) is provided at the center of the ring for connecting a return spring (60).

[0045] The cat scratching tube (40) is slidably fitted onto the outside of the central tube (50), and its outer surface is tightly wrapped with sisal rope for the cat to scratch. The top of the cat scratching tube (40) is provided with a rope fixing loop (41) for fixing one end of the flexible nylon rope (42).

[0046] The base (70) is located at the bottom of the entire device and consists of six inclined legs (71) and leg sleeves (72) to provide stable support. A crossbar (73) is provided at the center of the base (70) for connecting the lower end of the return spring (60).

[0047] The return spring (60) is a tension spring, with its upper end connected to the small horizontal bar (31) of the bottom ring of the ejector rod (30) and its lower end connected to the horizontal bar (73) of the base (70). In its natural state, the return spring (60) is in a contracted state, so that the ejector rod (30) is in the lowest position and the cat scratching tube (40) is in the highest position.

[0048] The rope (42) is made of flexible nylon rope. One end is fixed to the rope fixing ring (41) at the top of the cat scratching tube (40), and the other end extends upward and passes through the three grooved pulleys (21) on the pulley group ring cover (20) in sequence. After the pulleys change direction, it extends downward and is finally fixed to the fixing hook on the edge of the bottom ring of the push rod (30).

[0049] The work process is as follows:

[0050] Initial state: The return spring (60) is in the contracted state, the push rod (30) is in the lowest position, and the cat scratch tube (40) is in the highest position. The freeze-drying chamber (10) contains freeze-dried snacks. Guided by the funnel shape, 1-2 freeze-dried snacks at the bottom naturally slide down to the top of the inclined surface of the push rod (30) and are supported by the inclined surface of the push rod (30), waiting to be fed.

[0051] Feeding stage: When the cat scratches the sisal rope on the outer surface of the scratching tube (40), the scratching tube (40) slides downward along the central tube (50), and the rope fixing ring (41) at the top of the scratching tube (40) drives the flexible nylon rope (42) downward. After the flexible nylon rope (42) changes direction through the groove pulley (21), the direction of movement changes from downward to upward, thereby pulling the ejector rod (30) upward. When the ejector rod (30) moves upward, 1-2 freeze-dried grains on its inclined surface are lifted by the inclined surface and move upward along the support surface (funnel compartment partition wall) of the freeze-drying chamber (10). At the same time, the upward movement of the ejector rod (30) drives the small crossbar (31) to move upward, and the return spring (60) is stretched.

[0052] Feeding complete: When the cat scratching tube (40) moves to the bottom, the push rod (30) also reaches the top position simultaneously. At this time, the bottom of the inclined surface of the push rod (30) reaches the position of the inclined channel opening of the freeze-drying chamber (10). The 1-2 freeze-dried catties lifted up automatically roll into the downward inclined channel under the action of gravity, and roll out of the feeding device along the channel for the cat to eat.

[0053] Reset Phase: When the cat stops scratching and the external force is released, the stretched reset spring (60) pulls down the small crossbar (31) at the bottom of the ejector rod (30) by its elastic contraction force, causing the ejector rod (30) to move downward. When the ejector rod (30) moves downward, it drives the cat scratching tube (40) upward in the opposite direction through the reversing action of the flexible nylon rope (42) and the grooved pulley (21) until it returns to its initial position. At this time, the next freeze-dried food in the freeze-drying chamber (10) automatically slides down to the top of the inclined surface of the ejector rod (30) under the guidance of the funnel shape, waiting for the next scratching and feeding.

[0054] Through the above process, the present invention achieves the linkage effect of "automatically feeding 1-2 freeze-dried cat food every time the cat scratches", with controllable quantity and fun interaction.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rope pulley type cat claw cylinder linkage ejection feeding device, characterized in that, include: Freeze-drying chamber, pulley block cover, ejector rod, central tube, cat claw tube, return spring, and base; The freeze-drying chamber is snapped and fixed above the pulley block cover, and the freeze-drying chamber is funnel-shaped. The pulley assembly cover is tightly fitted onto the top of the central cylinder, and the edge of the pulley assembly cover has several grooved pulleys evenly distributed. The ejector rod is built into the central tube and can slide up and down. The upper part of the ejector rod is a slope, and the top of the slope is aligned with the discharge port of the freeze-drying chamber. The bottom of the ejector rod is provided with a ring, the edge of the ring is provided with a fixing hook, and the center of the ring is provided with a small crossbar. The cat scratching tube is slidably fitted onto the outside of the central tube, and the top of the cat scratching tube is provided with a rope fixing ring; The base is located at the bottom of the device. The base is composed of several inclined legs and leg sleeves, and a crossbar is provided on the base. The return spring is connected between the small horizontal bar of the bottom ring of the ejector rod and the horizontal bar of the base; A rope is connected to the rope fixing ring at the top of the cat scratching tube. The rope extends upward and passes through the grooved pulleys on the pulley assembly ring cover in sequence before changing direction and then connecting downward to the fixing hook on the edge of the bottom ring of the ejector rod. When the cat scratching cylinder moves downward, the rope fixing loop at the top of the cat scratching cylinder drives the rope downward. After the rope changes direction through the grooved pulley, it pulls the ejector rod upward, causing the ejector rod to move upward. At the same time, the return spring is stretched. When the external force is released, the return spring contracts, causing the ejector rod to move downward. The ejector rod changes direction through the rope and the grooved pulley, causing the cat scratching cylinder to return to its original position upward.

2. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The outer diameter of the bottom ring of the ejector rod is slightly smaller than the inner diameter of the central tube, allowing it to slide smoothly up and down inside the central tube.

3. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The pulley assembly cover has at least three grooved pulleys evenly distributed on its edge, and the pulley assembly cover is tightly fitted onto the top of the central tube by means of snap-fit ​​or thread.

4. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The base consists of 6 inclined legs and leg sleeves, and the crossbar is fixedly installed in the middle of the leg sleeves.

5. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The rope is a wear-resistant flexible nylon rope, and its connection with the rope fixing loop at the top of the cat scratcher and the fixing hook at the bottom of the push rod is by knotting or snapping.

6. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The reset spring is a tension spring. When the cat scratching tube is not subjected to external force, the reset spring is in a naturally contracted state or has a pre-tension.

7. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The inner diameter of the cat scratching tube is slightly larger than the outer diameter of the central tube, so that the cat scratching tube can be slidably fitted onto the outside of the central tube.

8. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The bottom of the freeze-drying chamber is provided with a buckle or a slot, and the center of the pulley block cover is provided with a corresponding slot or buckle. The two can be detached and fixed by snapping together.

9. The rope pulley type cat claw cylinder linkage ejection feeding device according to claim 1, characterized in that, The freeze-drying chamber has a downward-sloping freeze-drying rolling channel inside its closed side, with an inclination angle of 15° to 60°, and the end of the channel is aligned with the top of the ejector rod.

10. The rope pulley type cat claw cylinder linkage ejection feeding device according to any one of claims 1 to 9, characterized in that, The freeze-drying chamber, pulley ring cover, ejector rod, and base are all made of plastic, while the central tube and the cat scratch tube are made of PVC pipe.