Hot melting mechanism, packing device and cat litter basin

By combining heat-conducting components, heating components, and a heat-fusion layer, the problems of incomplete sealing and black smoke in the cat litter box fusion mechanism are solved. The width of the garbage bag cut is fused, the sealing effect is improved, slag adhesion is prevented, and the reliability of the fusion mechanism is enhanced.

CN224131928UActive Publication Date: 2026-04-17SHENZHEN LANG CHONG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LANG CHONG TECHNOLOGY CO LTD
Filing Date
2025-05-30
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing cat litter box's fusion mechanism has poor sealing performance when melting the garbage bag, making it easy to be pried open. Furthermore, the black smoke and residue generated during the melting process can easily adhere to the heating wire, causing the mechanism to malfunction.

Method used

It adopts a combined structure of heat-conducting component, heating component and heat-melting layer. The heat-conducting component has a fusion part and a fusion-break part on one side. The heating component is fixedly attached to the heat-conducting component. The heat-melting layer covers the surface of the fusion and fusion-break parts. The width of the garbage bag is integrated through the fusion and fusion-break parts of the heat-melting layer. Temperature control is achieved by combining thermistor and temperature switch.

Benefits of technology

It improves the sealing effect of the garbage bag's tear, preventing the tear from being stretched open. In addition, the hot-melt layer has high material strength and good heat resistance, and is not easy to adhere to molten slag, thus solving the problems of poor sealing and black smoke.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the hot melting mechanism, the packing device and the cat litter basin, when a garbage bag is packed, heat generated by a heating piece is transmitted to a hot melting layer through a heat conduction piece, and the garbage bag is disconnected through a protruding fusing part, corresponding to the hot melting layer, of the hot melting layer; according to the garbage bag, the garbage bag is fused instead of being completely disconnected through the fusion parts, corresponding to the upper area and the lower area of the protrusion, of the hot melting layer, the finally formed effect is that the fracture position of the garbage bag is provided with a fusion belt with a certain width, the closing effect of the fracture position is effectively improved, and the problem that the fracture position is opened is not prone to occurring. And on the other hand, the hot melting layer is made of a medium which is high in strength, resistant to high temperature and high in heat resistance and can be sufficiently used as hot melting and fusing media, meanwhile, the surface is smooth, anti-sticking, bright, capable of resisting various chemical corrosion and good in anti-sticking performance, and residues of the melted garbage bag cannot be stuck to the hot melting layer.
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Description

Technical Field

[0001] This utility model relates to the field of automatic cat litter box technology, and in particular to a hot-melt mechanism, a packaging device, and a cat litter box. Background Technology

[0002] Some advanced cat litter boxes in the prior art mainly include a chamber for cats to excrete and a baling device for cleaning and baling excrement. The working process is that the chamber operates to screen out the cat litter contaminated by excrement and then sends it to the garbage bag of the baling device. The garbage bag is then melted and cut to separate the garbage bag containing contaminated cat litter and seal the bottom of the garbage bag to be used.

[0003] Currently, the fusion mechanism on the market uses a single heating wire. When it melts the garbage bag, it only forms a closure at the cut end of the garbage bag. The fusion area is too narrow, resulting in poor sealing and the seal is easily stretched open.

[0004] In addition, the existing welding mechanism using heating wire generates black smoke during the process of melting the garbage bag, and the molten residue easily coats the heating wire, causing the welding mechanism to fail. Utility Model Content

[0005] The main purpose of this utility model is to propose a hot-melting mechanism, a packaging device, and a cat litter box, aiming to solve the problems of poor closure at the break of the garbage bag, black smoke when melting, and residue easily adhering to the heating wire when packaging existing cat litter boxes.

[0006] To achieve the above objectives, this utility model proposes a hot-melt mechanism, comprising:

[0007] A heat-conducting component, wherein one side of the heat-conducting component is provided with a horizontal fusion portion and a raised fusion break portion;

[0008] A heating element, wherein the heating element is fixedly attached to the side of the heat-conducting element away from the fused portion;

[0009] A hot-melt layer is fixedly attached to the surfaces of the fusion portion and the fusion break portion.

[0010] Preferably, the heat-conducting component is made of heat-conducting metal and is in the shape of a long strip; the fusion section is located in the middle of the heat-conducting component, and the fusion section is located on both sides of the fusion section and extends along the length of the heat-conducting component.

[0011] Preferably, the heating element is a long strip extending in a zigzag pattern along the length of the heat-conducting element.

[0012] Preferably, the fused portion is formed by bending the heat-conducting element at a corresponding position.

[0013] This utility model also proposes a packaging device, including a fixed frame, a movable frame, and the aforementioned hot-melt mechanism. The hot-melt mechanism is disposed on the fixed frame, and the movable frame can move relative to the fixed frame between positions that are against and away from the hot-melt mechanism.

[0014] Preferably, the side of the heating element away from the heat-conducting element is attached and fixed to the fixing frame, and the fixing frame is provided with a positive terminal and a negative terminal for electrical connection to both ends of the heating element, respectively.

[0015] Preferably, a thermistor is also provided, which is used to detect the temperature of the heating element for real-time temperature control.

[0016] Preferably, a temperature switch is also provided, which is used to detect the temperature of the heating element so as to disconnect the power supply to the heating element when the temperature of the heating element continues to rise due to the failure of the thermistor.

[0017] Preferably, the movable frame has a mating part on the side near the fixed frame for cooperating with the hot-melt mechanism. The mating part includes an elastic block and a heat insulation layer attached to the elastic block. The movable frame has a third mounting groove for accommodating the elastic block. The side of the elastic block near the hot-melt mechanism is outside the third mounting groove.

[0018] This utility model also proposes a cat litter box, including the above-mentioned heat-melting mechanism or the above-mentioned packaging device.

[0019] The beneficial effects of this utility model's technical solution are as follows:

[0020] When packing garbage bags, the heat generated by the heating element is transferred to the heat-fusion layer through the heat-conducting element. The garbage bag is then broken through the corresponding raised fusion section of the heat-fusion layer. The garbage bag is fused together through the fusion area above and below the corresponding raised section of the heat-fusion layer, rather than being completely separated. The final effect is that the cut of the garbage bag has a fusion band of a certain width, effectively improving the closure of the cut and preventing the cut from easily being stretched open. Furthermore, the heat-fusion layer is made of high-strength, high-temperature resistant, and heat-resistant material, sufficient to serve as the medium for heat melting and fusion. It also has a smooth, non-stick, and glossy surface, is resistant to various chemical corrosions, and has good non-stick properties, preventing molten garbage bag residue from adhering to the heat-fusion layer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the hot melt mechanism;

[0022] Figure 2 This is an exploded view of the hot melt mechanism;

[0023] Figure 3 This is a first-angle perspective view of the packaging device;

[0024] Figure 4 This is a second-angle perspective view of the packaging device;

[0025] Figure 5 This is a three-dimensional view of the mounting bracket;

[0026] Figure 6 This is a cross-sectional view of a cat litter box. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] This utility model proposes a hot-melting mechanism.

[0031] In this embodiment of the utility model, such as Figures 1 to 6 As shown, the hot melt mechanism includes a heat-conducting component 1, a heating component 2, and a hot melt layer 3.

[0032] The heat-conducting component 1 has a horizontal fusion portion 12 and a raised fusion-breaking portion 11 on one side; the heating element 2 is fixedly attached to the side of the heat-conducting component 1 away from the fusion-breaking portion 11; and the hot-melt layer 3 is fixedly attached to the surface of the fusion portion 12 and the fusion-breaking portion 11.

[0033] Specifically, the heat-conducting component 1 is made of a heat-conducting metal, such as copper, and is in the shape of a long strip. The fusion section 11 is located in the middle of the heat-conducting component 1, and the fusion section 12 is located on both sides of the fusion section 11 and extends along the length of the heat-conducting component 1.

[0034] Specifically, the heating element 2 is a long strip that extends in a zigzag pattern along the length of the heat-conducting element 1.

[0035] Specifically, the heating element 2 is a PI heating element, which is an electric heating element with polyimide film (PI film) as the substrate and insulation layer. It is an important type of flexible electric heating film, with advantages such as high temperature resistance, ultra-thin flexibility, uniform heating, high thermal efficiency, and fast response.

[0036] Specifically, the fused portion 11 is formed by bending the heat-conducting component 1 at the corresponding position.

[0037] Specifically, the hot-melt layer 3 is made of high-strength, high-temperature resistant material with strong heat resistance, sufficient to serve as a medium for hot melting and fusion. It also has a smooth, non-stick, and glossy surface, resists various chemical corrosions, and has good anti-stick properties, preventing molten garbage bag debris from adhering to the hot-melt layer 3. For example, the hot-melt layer 3 may use Teflon tape. Teflon tape is made by first coating glass fiber with Teflon emulsion and drying it to form Teflon glass fiber cloth, then coating it a second time with silicone adhesive to create a high-temperature resistant tape. Teflon tape is characterized by high strength, high temperature resistance (normally up to 260 degrees Celsius), a smooth, non-stick, and glossy surface, resistance to various chemical corrosions, good heat resistance (continuous use temperature above 260 degrees Celsius), and safe use even on overheated heaters. Its good anti-stick properties prevent molten garbage bag debris from adhering to the Teflon tape.

[0038] This utility model also proposes a packaging device, including a fixed frame 4, a movable frame 5, and a heat-sealing mechanism. The heat-sealing mechanism is disposed on the fixed frame 4, and the movable frame 5 can move relative to the fixed frame 4 between positions that are against and away from the heat-sealing mechanism. For the specific structure of the heat-sealing mechanism, please refer to the above embodiments. Since this packaging device adopts all the technical solutions of all the above embodiments of the heat-sealing mechanism, it at least has all the beneficial effects brought about by the technical solutions of the above heat-sealing mechanism, and will not be elaborated further here.

[0039] Specifically, the heating element 2 is fixed to the mounting bracket 4 on the side away from the heat-conducting element 1. The mounting bracket 4 is provided with a positive terminal 41 and a negative terminal 42 for electrical connection to both ends of the heating element 2, respectively. When the positive terminal 41 and the negative terminal 42 are energized, the heating element 2 can be energized and heated.

[0040] Specifically, the heating element 2 is fixedly bonded to the fixing frame 4 with high-temperature resistant double-sided adhesive.

[0041] Specifically, a thermistor 6 is also provided, which is used to detect the temperature of the heating element 2 for real-time temperature control.

[0042] Specifically, a first mounting groove is provided on the side of the mounting bracket 4 corresponding to the position of the heating element 2, and the thermistor 6 is disposed in the first mounting groove. Preferably, the thermistor 6 is an NTC thermistor 6.

[0043] Specifically, a temperature switch 61 is also provided, which is used to detect the temperature of the heating element 2, so as to disconnect the power supply to the heating element 2 when the thermistor 6 fails and the temperature of the heating element 2 continues to rise.

[0044] Specifically, the fixed frame 4 has a second mounting groove on the side away from the movable frame 5, and the temperature switch 61 is installed in the second mounting groove. It should be noted that the thermistor 6 and the temperature switch 61 are existing technologies, and their specific structures will not be described in detail here.

[0045] Specifically, the movable frame 5 has a mating part on the side near the fixed frame 4 for cooperating with the hot-melt mechanism. The mating part includes an elastic block 8 and a heat insulation layer 7 covering the elastic block 8. The movable frame 5 has a third mounting groove for accommodating the elastic block 8. The side of the elastic block 8 near the hot-melt mechanism is outside the third mounting groove.

[0046] Specifically, the heat insulation layer 7 is made of Teflon tape.

[0047] Specifically, the elastic block 8 is preferably made of silicone. When the hot-melt mechanism and the elastic block 8 are engaged, it is actually a tight fit between the hot-melt layer 3 and the heat insulation layer 7. The heat generated by the heating element 2 is transferred to the hot-melt layer 3 through the heat-conducting element. The garbage bag is broken through the position of the hot-melt layer 3 corresponding to the fusion part 11. The garbage bag is fused together rather than completely broken through the positions of the upper and lower areas of the hot-melt layer 3 corresponding to the fusion part 11. The final effect is that the cut of the garbage bag has a fusion band with a certain width, which effectively improves the closing effect of the cut and prevents the cut from being easily stretched open.

[0048] Of course, in another embodiment, a groove corresponding to the fusion section 11 can also be provided at the position of the movable frame 5 corresponding to the fusion section 11. During fusion, the hot melt layer 3 corresponding to the position of the fusion section 11 is inserted into the groove to melt the garbage bag. The upper and lower regions of the hot melt layer 3 corresponding to the fusion section 11 fuse the broken part of the garbage bag into a fusion band with a certain width. The upper and lower regions are the fusion section 12.

[0049] Specifically, it also includes a drive mechanism 9, the drive end of which is connected to the movable frame 5 and is used to drive the movable frame 5 to perform the movement.

[0050] Specifically, the drive mechanism 9 can refer to existing technologies, such as telescopic cylinders, linear motors, rack and pinion transmissions, etc., and its specific structural principles will not be elaborated here.

[0051] This utility model also proposes a cat litter box, including a heat-melting mechanism or a packing device. For the specific structure of the heat-melting mechanism or packing device, please refer to the above embodiments. Since this cat litter box adopts all the technical solutions of all the above embodiments of the heat-melting mechanism or packing device, it at least has all the beneficial effects brought about by the technical solutions of the above heat-melting mechanism or packing device, and will not be elaborated further here.

[0052] Specifically, existing technologies can be referenced for litter boxes, and their specific structures will not be described in detail here. The working sequence of a litter box is as follows: the waste chamber sieves out waste and sends it to the baling device. After the waste falls into the garbage bag in the baling device, the baling device operates to press the garbage bag in a certain part, and then the garbage bag is melted and closed by a heat-sealing mechanism to complete the baling.

[0053] The beneficial effects of this utility model's technical solution are as follows:

[0054] When packing garbage bags, the heat generated by the heating element is transferred to the heat-fusion layer through the heat-conducting element. The garbage bag is then broken through the corresponding raised fusion section of the heat-fusion layer. The garbage bag is fused together through the fusion area above and below the corresponding raised section of the heat-fusion layer, rather than being completely separated. The final effect is that the cut of the garbage bag has a fusion band of a certain width, effectively improving the closure of the cut and preventing the cut from easily being stretched open. Furthermore, the heat-fusion layer is made of high-strength, high-temperature resistant, and heat-resistant material, sufficient to serve as the medium for heat melting and fusion. It also has a smooth, non-stick, and glossy surface, is resistant to various chemical corrosions, and has good non-stick properties, preventing molten garbage bag residue from adhering to the heat-fusion layer.

[0055] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A hot melt mechanism characterized by, include: A heat-conducting component (1) has a horizontal fusion portion (12) and a raised fusion break portion (11) on one side. Heating element (2), which is fixedly attached to the side of the heat-conducting element (1) away from the fuse part (11); A hot melt layer (3) is fixedly attached to the surface of the fusion portion (12) and the fusion break portion (11).

2. The hot melt mechanism of claim 1, wherein: The heat-conducting component (1) is made of heat-conducting metal and is in the shape of a long strip. The fusion section (11) is located in the middle of the heat-conducting component (1), and the fusion section (12) is located on both sides of the fusion section (11) and extends along the length of the heat-conducting component (1).

3. The hot melt mechanism of claim 1, wherein: The heating element (2) is a long strip that extends in a zigzag pattern along the length of the heat-conducting element (1).

4. Hot-melt mechanism according to any one of claims 1-3, characterized in that: The fused portion (11) is formed by bending the heat-conducting component (1) at the corresponding position.

5. A packing apparatus characterized by comprising: It includes a fixed frame (4), a movable frame (5), and a heat-melting mechanism as described in any one of claims 1 to 4, wherein the heat-melting mechanism is disposed on the fixed frame (4), and the movable frame (5) is movable relative to the fixed frame (4) between positions that are against and away from the heat-melting mechanism.

6. The packing apparatus of claim 5, wherein: The heating element (2) is attached and fixed to the mounting bracket (4) on the side away from the heat-conducting element (1). The mounting bracket (4) is provided with a positive terminal (41) and a negative terminal (42) for electrically connecting to both ends of the heating element (2).

7. The packing apparatus of claim 5, wherein: A thermistor (6) is also provided, which is used to detect the temperature of the heating element (2) for real-time temperature control.

8. The packing apparatus of claim 7, wherein: A temperature switch (61) is also provided, which is used to detect the temperature of the heating element (2) so as to disconnect the power supply of the heating element (2) when the temperature of the heating element (2) continues to rise due to the failure of the thermistor (6).

9. The packing apparatus of claim 5, wherein: The movable frame (5) has a mating part on the side near the fixed frame (4) for cooperating with the hot melt mechanism. The mating part includes an elastic block (8) and a heat insulation layer (7) covering the elastic block (8). The movable frame (5) has a third mounting groove for accommodating the elastic block (8). The side of the elastic block (8) near the hot melt mechanism is outside the third mounting groove.

10. A cat litter box characterized by: It includes the heat-sealing mechanism as described in any one of claims 1 to 4, or the packaging device as described in any one of claims 5 to 9.