Garbage disposer housing and garbage disposer
By using an inner and outer shell nesting structure and a gap design, the problem of complex and costly production of existing garbage disposer shells has been solved, achieving the effects of simplified production, reduced costs, improved aesthetics, and extended product lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ESON MOTOR CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-24
AI Technical Summary
The production process for existing kitchen waste disposers with dual-color designs is complex and costly, and they also suffer from problems such as insufficient coating adhesion and difficulty in controlling color differences, which affect aesthetics and stability.
It adopts an inner and outer shell nesting structure, using the gap to create a two-color effect. The inner shell and outer shell are exposed through the gap, avoiding the traditional two-color injection molding or color-separated spraying process. The color difference between the inner shell and outer shell is achieved by the difference in material color. The inner shell and outer shell are fixed by limiting grooves and fasteners.
Simplify the production process, reduce costs, improve the stability and aesthetics of the shell structure, extend product lifespan, and enhance market competitiveness.
Smart Images

Figure CN224549268U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of garbage disposers, and in particular to a garbage disposer housing and a garbage disposer. Background Technology
[0002] Existing kitchen waste disposers mostly use stainless steel or engineering plastics for their casings, primarily in single colors (such as the original stainless steel color, black, or white). While these colors can coordinate with the kitchen environment, they lack visual depth. Some high-end products employ two-color design processes to enhance brand recognition, such as two-color injection molding or two-color spraying. These processes require multiple molding or spraying steps, leading to complex production processes and significantly increased costs. Furthermore, two-color spraying is prone to problems such as insufficient coating adhesion and difficulty in controlling color differences, and long-term use can result in fading or wear, affecting aesthetics. Two-color injection molding, on the other hand, requires high mold precision and has a long processing cycle, making it unsuitable for large-scale production. Therefore, how to simplify the production process, reduce manufacturing costs, and improve the stability of the casing structure while maintaining the aesthetic appeal of a two-color design has become an urgent technical challenge. Utility Model Content
[0003] The first technical problem to be solved by this utility model is to provide a garbage disposal casing that, while meeting the requirements for a two-color appearance, can effectively reduce manufacturing costs and improve the stability of the casing structure, in light of the current state of the technology.
[0004] The second technical problem to be solved by this utility model is to provide a garbage disposal unit that uses the above-mentioned shell, in view of the current state of the prior art.
[0005] The technical solution adopted by this utility model to solve the first technical problem is: a garbage disposal housing, including an inner shell and an outer shell sleeved outside the inner shell. The outer shell includes an upper half shell and a lower half shell arranged sequentially at intervals. A gap is reserved between the upper half shell and the lower half shell in the vertical direction. The part of the inner shell that is opposite to the gap is visible to the outside through the gap.
[0006] Generally, the aforementioned gaps can be continuous annular gaps in the circumferential direction, or discontinuous strip gaps of one or at least two segments in the circumferential direction. Preferably, the gaps are annular gaps extending circumferentially along the shell, with the entire annular gap inclined relative to the longitudinal axis of the shell. Inclined annular gaps effectively enhance visual hierarchy and improve the product's structural stability and aesthetics. It is conceivable that the overall shape of the aforementioned annular gaps could also be wavy along the circumference of the shell.
[0007] To facilitate assembly between the inner and outer shells and further reduce production costs, both the upper and lower shells are detachably mounted on the outside of the inner shell. In some embodiments, the upper or lower shell may be fixedly connected to the inner shell by means of adhesive bonding or other methods.
[0008] To facilitate processing and ensure the strength of the upper and lower shells, as an improvement, both the upper and lower shells are closed annular structures that extend in the circumferential direction.
[0009] To further facilitate the installation of the upper and lower shells, the outer diameter of the inner shell's peripheral wall gradually increases from bottom to top. Both the upper and lower shells move upwards relative to the inner shell and are fitted over it. This structural design allows both the upper and lower shells to be installed by moving upwards from the bottom of the inner shell, and during disassembly, they move downwards to detach from the bottom of the inner shell. The gradually widening design of the inner shell's peripheral wall, combined with the bottom-up fitting of the shell, simplifies the alignment process and improves assembly efficiency.
[0010] To further simplify the detachable installation structure between the upper shell and the inner shell, the inner wall of the upper shell has an inwardly protruding buckle, and the outer wall of the inner shell has an inverted L-shaped limiting groove. The upper shell and the inner shell are rotated and positioned by sliding the buckle within the limiting groove. The cooperation between the buckle and the limiting groove achieves precise positioning, prevents installation misalignment, and ensures a secure connection between the upper and lower shells and the inner shell.
[0011] To facilitate the installation of components such as the grinding unit within the housing, the inner housing includes a housing body and a cover mounted on top of the housing body. The cover has a connection port on its top. The top edge of the upper housing is wavy in the circumferential direction, and at least a portion of the cover is exposed relative to the top edge of the upper housing, making it visible from the side. The wavy edge of the upper housing enhances the visibility of the top structure, improves the aesthetic design, and facilitates user access to the connection port.
[0012] To enable detachable installation between the inner shell and the lower shell, and to ensure a secure connection, the portion of the inner shell that connects to the bottom wall is designated as the lower circumferential wall. The outer diameter of this lower circumferential wall is smaller than the outer diameter of the main body of the inner shell, forming a limiting step. The lower port of the lower shell has an inwardly extending annular flange along its periphery. This annular flange abuts against the limiting step and is connected by fasteners. The limiting step and the annular flange are fixed together by fasteners, enhancing the connection strength and preventing separation of the shell due to vibration or load. Simultaneously, the fasteners between the annular flange and the limiting step facilitate installation and disassembly by the user using tools.
[0013] As an improvement, a mounting plug for connecting to an external pipe is also included. The mounting plug has a recessed groove along its outer periphery. A first mounting hole, penetrating both the inner and outer sides, is formed on the peripheral wall of the inner shell. A second mounting hole is formed on the upper half of the shell, corresponding to the upper inner and outer sides of the first mounting hole. A third mounting hole is formed on the lower half of the shell, corresponding to the lower inner and outer sides of the first mounting hole. A portion of the outer periphery of the second mounting hole and a portion of the outer periphery of the first mounting hole are fitted together in the upper part of the groove. The outer periphery of the third mounting hole and a portion of the outer periphery of the first mounting hole are fitted together in the lower part of the groove. This design, with the mounting plug and the multi-layered mounting holes fitting together, achieves multi-directional sealing and fixation, improving the reliability and leak-proof performance of the pipe connection.
[0014] The technical solution adopted by this utility model to solve the second technical problem is: a garbage disposal unit, including a housing and a grinding unit disposed in the housing, wherein the housing adopts the housing of the garbage disposal unit described above.
[0015] Compared with existing technologies, the advantages of this utility model are as follows: Because the garbage disposal unit of this application adopts a nested inner and outer shell structure, with gaps between the upper and lower shell halves, when a two-color or multi-color shell structure is required, only the gaps need to be utilized to allow the visible portion of the inner shell to naturally form a second color band different from the outer shell color. That is, traditional two-color injection molding or color-separation spraying processes are unnecessary, directly eliminating multiple molding processes and the investment in matching molds, significantly reducing production costs. Especially when applied to garbage disposal units, since the color difference between the inner and outer shells is achieved through the material's own color rather than a coating, it effectively solves the problems of color difference control and fading risks associated with existing two-color injection molding or color-separation spraying methods, thereby significantly extending the product's service life and enhancing its market competitiveness. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the casing of the garbage disposer according to an embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional structural diagram of the casing of the garbage disposer according to another embodiment of the present utility model;
[0018] Figure 3 This is an exploded view of the casing of the garbage disposer according to an embodiment of the present utility model;
[0019] Figure 4 This is an exploded view of the inner shell of an embodiment of the present utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the upper shell according to an embodiment of the present utility model;
[0021] Figure 6 This is a three-dimensional structural diagram of the lower half shell according to an embodiment of the present utility model;
[0022] Figure 7 This is a three-dimensional structural diagram of the mounting plug according to an embodiment of the present utility model. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
[0025] Figures 1-7 This invention illustrates the housing of a garbage disposal unit and a preferred embodiment of the garbage disposal unit. The housing of the garbage disposal unit in this embodiment includes an inner shell 1 and an outer shell 2. The inner shell 1 can be made of corrosion-resistant plastic or metal. A connection port 110 is provided at the top of the inner shell 1 for installing connectors to connect to the drain pipe of the sink. The internal space of the inner shell 1 forms a cavity for accommodating components such as the grinding unit. The inner shell 1 has a cylindrical structure, and its outer surface can be red (the natural color of the material). The outer shell 2 is fitted over the inner shell 1 and serves as a decorative shell; the outer shell 2 can also be made of plastic. The outer shell 2 is divided into an upper shell 21 and a lower shell 22. The upper shell 21 and the lower shell 22 are spaced apart vertically, forming an annular gap 4 in the circumferential direction between them. This annular gap 4 is inclined relative to the longitudinal axis of the housing (of course, the annular gap can also be wavy along the circumference of the housing), allowing the corresponding parts of the inner shell 1 and the outer gap 4 to be exposed through the gap, forming a two-tone visual effect around the housing. The width of the annular gap channel is basically consistent along its length, although it can vary slightly.
[0026] See Figure 3The upper shell 21 and lower shell 22 of the outer shell 2 are both closed annular structures with an inner diameter slightly larger than the maximum outer diameter of the inner shell 1. The outer diameter of the peripheral wall of the main body of the inner shell 1 gradually increases from the bottom to the top, forming a conical structure. During installation, the upper shell 21 and lower shell 22 slide upward from the bottom of the inner shell 1 until they reach the preset position. The inner wall of the upper shell 21 is provided with two symmetrical protrusions 2110, and the corresponding position on the outer wall of the inner shell 1 is provided with an L-shaped limiting groove 13. The L-shaped limiting groove 13 includes a vertically extending longitudinal groove section and a horizontally extending transverse groove section. The top of the transverse groove section is connected to the top of the longitudinal groove section, so that the limiting groove 13 is an inverted L-shaped structure. Passing through the bottom of the inner shell 1, the upper shell 21 moves upward, and the protrusions 2110 slide upward along the longitudinal groove section of the limiting groove 13 to the limit position. Then, after rotating a certain distance, they can be inserted into the transverse groove section to achieve limiting and fixing of the two in the vertical direction. The width of the buckle 2110 is matched with the limiting slide 13, so that the buckle 2110 will not easily come out of the limiting slide 13, ensuring the reliability of the packaging installation.
[0027] Combination Figure 3 and Figure 6 The portion of the inner shell 1 where its peripheral wall meets its bottom wall is referred to as the lower peripheral wall 101 of the inner shell 1. The outer diameter of the lower peripheral wall 101 of the inner shell 1 is smaller than the outer diameter of the main body of the inner shell 1 (which can also be understood as the outer diameter of the peripheral wall of the inner shell 1), thus forming an annular limiting step portion 102. The lower port of the lower half shell 22 of the outer shell 2 has an inwardly extending annular flange 222. When the lower half shell 22 is moved upward from the bottom of the inner shell 1 for installation, the annular flange 222 of the lower half shell 22 rests against the limiting step portion 102, and then the annular flange 222 is connected to the limiting step portion 102 by fasteners (such as screws). The limiting step portion 102 and the annular flange 222 are fixed by fasteners, which effectively enhances the connection strength between the lower half shell 22 and the inner shell 1, and prevents the shell from separating due to vibration or load. At the same time, the fasteners provided between the annular flange 222 and the limiting step portion 102 also facilitate installation and disassembly by the user using tools. After the lower shell 22 is installed outside the inner shell 1, part of the lower peripheral wall 101 of the inner shell 1 is also exposed at the bottom, visible from the side of the user, further enhancing the two-tone visual effect.
[0028] To facilitate the alignment and positioning of the lower shell 22 and the inner shell 1 for the installation of fasteners, the inner peripheral wall of the lower shell 22 has a positioning plate 223 that extends vertically and protrudes inward. Correspondingly, the upper peripheral wall of the inner shell 1 has a vertically extending positioning groove 14, the lower end of which is located on the aforementioned limiting step portion 102. When installing the lower shell 22, the positioning plate 223 on the lower shell 22 is aligned vertically with the lower end of the positioning groove 14 on the inner shell 1. The lower shell 22 can then be moved upward until the annular flange 222 abuts against the limiting step portion 102 of the inner shell 1.
[0029] See Figure 4 The inner shell 1 has a detachable (or screw-connected) cover 11 at the top, with a circular connection port 110 in the center for connecting to a drain pipe. The top edge of the upper shell 21 of the outer shell 2 is also wavy, and from the side, part of the cover 11 can be exposed from the top of the upper shell 21, further enhancing the sense of layering at the top.
[0030] Combination Figure 3 and Figure 7 In some embodiments, a mounting plug 3 is added to the housing to achieve a sealed connection with an external pipe. The mounting plug 3 may be made of silicone, and an annular groove 30 is formed on its outer periphery. A first mounting hole 12 is formed on the peripheral wall of the inner shell 1. The first mounting hole 12 is a vertically extending waist-shaped hole. A second mounting hole 211 and a third mounting hole 221 are respectively formed at corresponding positions on the upper half shell 21 and the lower half shell 22. During installation, the mounting plug 3 is inserted into the first mounting hole 12, so that the outer edge of the second mounting hole 211 is embedded in the upper part of the groove 30 (the upper edge of the first mounting hole 12 is also embedded at the same time), and the outer edge of the third mounting hole 221 is embedded in the lower part of the groove 30 (the lower edge of the first mounting hole 12 is also embedded at the same time). Through the nesting and cooperation of the groove 30 and the multiple mounting holes, a good seal is achieved to prevent liquid leakage.
[0031] This embodiment also relates to a garbage disposal unit, including a housing and a grinding unit disposed within the housing, wherein the housing is the same as the garbage disposal housing described above. The grinding unit can be a conventional grinding device in the prior art, which will not be described in detail here.
[0032] The garbage disposal unit in this embodiment adopts a nested inner and outer shell structure. A gap 4 is provided between the upper and lower halves 22 of the outer shell 2. Therefore, when a two-color or multi-color shell structure is required, the visible part of the inner shell 1 can be naturally formed with a second color band different from the outer shell by utilizing the gap. This eliminates the need for traditional two-color injection molding or color-separation spraying processes, directly eliminating multiple molding processes and the investment in matching molds, thus greatly reducing production costs. Especially when applied to garbage disposal units, since the color difference between the inner and outer shells is achieved through the material's own color rather than a coating, it effectively solves the problems of color difference control and fading risks in existing two-color injection molding or color-separation spraying methods. This significantly extends the product's service life and enhances its market competitiveness.
[0033] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. For example, the gap 4 can be replaced by at least two strip gaps distributed at equal or unequal intervals. The color between the inner shell 1 and the outer shell 2 can be changed according to actual needs, such as using blue material for the inner shell 1 and silver aluminum alloy material for the outer shell 2. The strip gaps make the blue area of the inner shell 1 intermittently exposed, forming a unique two-color stripe effect. For another example, the upper shell 21, lower shell 22 and inner shell 1 can also be fixedly connected without using a detachable connection method, such as by adhesive bonding. Furthermore, the upper shell 21 and lower shell 22 can both adopt a split design, such as the upper shell 21 being divided into left and right halves with insertion grooves and locking screws at the joint; the lower shell 22 being divided into front and rear halves, connected by elastic buckles. During installation, first assemble the left and right upper half shells 21 and fix them to the inner shell 1 with screws. Then, snap the front and rear lower half shells 22 together and finally tighten them with bolts using the annular flange 222. This design is suitable for scenarios where there is insufficient vertical installation space and frequent disassembly and maintenance are required.
Claims
1. A casing for a garbage disposal unit, characterized in that: It includes an inner shell (1) and an outer shell (2) fitted outside the inner shell (1). The outer shell (2) includes an upper half shell (21) and a lower half shell (22) arranged sequentially. A gap (4) is reserved between the upper half shell (21) and the lower half shell (22) in the vertical direction. The part of the inner shell (1) and the gap (4) that are opposite to each other are visible to the outside through the gap (4).
2. The casing of the garbage disposer according to claim 1, characterized in that: The gap (4) is an annular gap extending circumferentially along the shell, and the entire annular gap is inclined relative to the longitudinal axis of the shell.
3. The casing of the garbage disposer according to claim 1, characterized in that: The upper shell (21) and lower shell (22) are both installed outside the inner shell (1) in a detachable manner.
4. The casing of the garbage disposer according to claim 3, characterized in that: Both the upper shell (21) and the lower shell (22) are circumferentially extended and closed annular structures.
5. The casing of the garbage disposer according to claim 4, characterized in that: The outer diameter of the peripheral wall of the inner shell (1) gradually increases from the bottom to the top. The upper shell (21) and the lower shell (22) move from bottom to top relative to the inner shell (1) and are fitted and installed outside the inner shell (1).
6. The casing of the garbage disposer according to claim 5, characterized in that: The inner wall of the upper shell (21) has an inwardly protruding buckle (2110), and the outer wall of the inner shell (1) has an inverted L-shaped limiting groove (13). The upper shell (21) and the inner shell (1) are rotated and limited by sliding in the limiting groove (13) through the buckle (2110).
7. The casing of the garbage disposer according to claim 5, characterized in that: The inner shell (1) includes a shell body (10) and a cover (11) installed on the top of the shell body (10). The cover (11) has a connection port (110) on the top. The top edge of the upper shell (21) is arranged in a wavy shape along the circumference. At least a portion of the cover (11) is exposed relative to the top edge of the upper shell (21) and is visible from the side.
8. The casing of the garbage disposer according to claim 5, characterized in that: The portion of the inner shell (1) that connects with the bottom wall is referred to as the lower peripheral wall (101) of the inner shell (1). The outer diameter of the lower peripheral wall (101) of the inner shell (1) is smaller than the outer diameter of the main body of the inner shell (1), thus forming a limiting step portion (102). The lower port of the lower half shell (22) has an inwardly extending annular flange (222) at its periphery. The annular flange (222) abuts against the limiting step portion (102) and is connected by fasteners.
9. The housing of the garbage disposer according to any one of claims 1 to 8, characterized in that: It also includes a mounting plug (3) for connecting to an external pipe. The mounting plug (3) has a recessed groove (30) at its outer periphery. The inner shell (1) has a first mounting hole (12) that runs through the inside and outside. The upper shell (21) has a second mounting hole (211) at the upper part corresponding to the first mounting hole (12). The lower shell (22) has a third mounting hole (221) at the lower part corresponding to the first mounting hole (12). The outer periphery of the second mounting hole (211) and the outer periphery of the first mounting hole (12) are together fitted into the upper part of the groove (30). The outer periphery of the third mounting hole (221) and the outer periphery of the first mounting hole (12) are together fitted into the lower part of the groove (30).
10. A garbage disposal unit, comprising a housing and a grinding unit disposed within the housing, characterized in that: The housing is the housing of the garbage disposal unit according to any one of claims 1 to 9.