A cleaning machine inner container structure and a cleaning machine
By designing an inner liner structure with a gradually decreasing cross-section at the top and a curved guide section, the problem of turbulent airflow in a square inner liner was solved, achieving more efficient drying and water discharge, and improving the overall performance of the inner liner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN KINGCARE ELECTRICAL TECH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-02
AI Technical Summary
The existing square inner liner structure makes the airflow turbulent when it enters, affecting the drying efficiency.
An inner liner structure is designed with a gradually changing cross section that is larger at the top and smaller at the bottom. After the airflow enters from the air inlet, it forms a vortex and a low-resistance airflow channel through the circular bottom. Combined with the arc-shaped guide section and the high-level water inlet and low-level drain outlet, the airflow circulation and water discharge are optimized.
It improves the drying efficiency of the inner liner and the items, enhances the overall strength and pressure resistance of the inner liner structure, and reduces moisture residue.
Smart Images

Figure CN224309132U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cleaning machine technology, and in particular relates to a cleaning machine inner tank structure and a cleaning machine. Background Technology
[0002] Cleaning machines can automatically clean, dry, and disinfect items. They typically have a washing chamber for holding items to be cleaned. This washing chamber can be either an integral part of the machine or a separate inner tank installed within the machine. The washing chamber is usually square in shape.
[0003] Chinese patent document CN219070188U discloses a drying structure for a cleaning machine and the cleaning machine itself. The drying structure includes a housing with an air inlet and an air outlet. An airflow channel connects the air inlet and outlet within the housing. A heating element and a condenser are sequentially arranged within the airflow channel. The air outlet is located below the air inlet. A guide plate is also included, horizontally positioned within the airflow channel and below the condenser. The upper surface of the guide plate forms a flow channel for condensate from the condenser to drip onto and flow along. The end of this flow channel is in fluid communication with the air outlet. The condensate from the condenser can be directly guided through the guide plate into the air outlet, eliminating the need for a condensate collection box and resulting in a simpler drying structure with fewer components.
[0004] As can be seen from the technical solution and figures in the aforementioned patent documents, the inner liner has an overall square structure, and the air outlet of the shell is correspondingly set with the air inlet on the side wall of the inner liner, and they are connected by a connector. When the airflow from the shell flows into the inner liner through the air inlet, the square structure with corners obstructs the airflow, causing irregular movement and forming turbulence, which affects the drying efficiency of the airflow on the inner liner and the items. Utility Model Content
[0005] The purpose of this utility model is to provide a cleaning machine inner tank structure and a cleaning machine, which solves the problem that the existing inner tank has a square structure, and the airflow is easily disturbed after entering the inner tank, which affects the drying efficiency.
[0006] To achieve the above objectives, this utility model provides a cleaning machine inner tank structure, disposed within the outer shell of the cleaning machine, including a cavity with a top opening. The top of the cavity has an outwardly extending annular step, and the bottom of the step has a downwardly extending mounting component. The mounting component cooperates with an annular support component at the top of the outer shell. The cavity has a gradually changing cross-section structure, with the upper part being a square cross-section that gradually changes to a circular cross-section downwards. An air inlet is provided below the side wall of the cavity, and a downwardly recessed arc-shaped guide portion is formed at the bottom of the cavity. The guide portion has a high-level water inlet and a low-level drain outlet.
[0007] Furthermore, the outer periphery of the cavity is provided with a downwardly extending support foot. The support foot includes a support column extending vertically to the bottom of the outer shell and a reinforcing rib. One side of the reinforcing rib is connected to the support column, and the other side is connected to the outer wall of the cavity and extends to the guide portion, so that the bottom of the cavity and the bottom of the outer shell form an installation cavity.
[0008] Furthermore, the bottom end of the guide section is provided with a downwardly extending connector.
[0009] Furthermore, the guide section is provided with a downwardly recessed annular water collection groove, the drain outlet is located in the annular water collection groove, the inner side of the annular water collection groove is an inclined surface, the inclined surface is connected to the inlet of the drain outlet, and the drain outlet is a countersunk hole.
[0010] Furthermore, the annular water collection tank is also provided with a through hole, which extends downward to form a cylindrical receiving cavity.
[0011] Furthermore, the support assembly includes an annular support groove and circumferentially distributed positioning grooves in the support groove. The mounting assembly includes a mounting plate that mates with the support groove and circumferentially distributed positioning ribs along the step. The upper part of the positioning rib is also connected to the inner side of the mounting plate, and the lower part extends vertically to the outer side of the cavity.
[0012] Furthermore, the outer periphery of the stepped position is provided with a radially extending locking boss, and the corresponding position on the top of the outer shell is provided with an avoidance groove.
[0013] Furthermore, the inner wall of the cavity is also provided with a shelf support.
[0014] A cleaning machine includes the aforementioned cleaning machine inner tank structure.
[0015] The above-mentioned technical solutions in the inner tank structure of the cleaning machine provided in this embodiment of the utility model have at least the following technical effects:
[0016] Because the inner liner structure has a gradually decreasing cross-section, wider at the top and narrower at the bottom (square at the top, gradually transitioning to a circular cross-section downwards), with an air inlet located on the lower side wall, when airflow enters the cavity through the inlet, the circular bottom of the cavity forms a low-resistance airflow channel. This facilitates the rotational movement of the airflow, creating vortices and a more stable airflow circulation. Furthermore, the air spirals upwards along the inner wall, extending the airflow path and residence time, thereby improving the drying efficiency of the inner liner and the items inside. The gradually decreasing cross-section design also reduces stress concentration, contributing to increased overall strength and pressure resistance of the inner liner structure.
[0017] Because the mounting components at the top of the cavity step cooperate with the support components at the top of the outer shell, the inner tank structure is stable within the outer shell and is not prone to shaking. In addition, the flow guide at the bottom of the cavity is equipped with a high-level water inlet and a low-level drain outlet. The arc-shaped design of the flow guide directs the water flow quickly out of the drain outlet, reducing moisture residue and improving the drying efficiency of the inner tank. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a cross-sectional view of the cleaning machine provided in an embodiment of the present utility model.
[0020] Figure 2 This is a structural diagram of the inner tank structure of the cleaning machine provided in an embodiment of the present utility model.
[0021] Figure 3 Another structural diagram of the inner tank structure of the cleaning machine provided in this embodiment of the utility model.
[0022] Figure 4 This is a top view of the inner tank structure of the cleaning machine provided in an embodiment of the present utility model.
[0023] Figure 5 A perspective view of the inner tank structure of the cleaning machine provided in an embodiment of this utility model.
[0024] Figure 6 This is a structural diagram of the outer casing of the cleaning machine provided in an embodiment of the present utility model.
[0025] In the diagram, 100 is the inner liner structure, 110 is the cavity, 120 is the step, 130 is the mounting component, 131 is the mounting plate, 132 is the positioning rib, 133 is the locking boss, 140 is the air inlet, 150 is the flow guide, 151 is the water inlet, 152 is the drain outlet, 153 is the connector, 154 is the annular water collection trough, 155 is the inclined surface, 156 is the through hole, 160 is the support foot, 161 is the support column, 162 is the reinforcing rib, and 170 is the shelf support component.
[0026] 200, outer shell; 210, support assembly; 211, support groove; 212, positioning groove; 220, mounting cavity; 230, clearance groove. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.
[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0031] In one embodiment of the cleaning machine of this utility model, please refer to... Figures 1 to 6 A cleaning machine, including a cleaning machine inner tank structure 100. The cleaning machine inner tank structure 100 is disposed within the outer shell 200 of the cleaning machine.
[0032] Specifically, please refer to Figures 2 to 5The inner tank structure 100 of the cleaning machine includes a cavity 110 with a top opening. The top of the cavity 110 has an outwardly extending annular step 120, and the bottom of the step 120 has a downwardly extending mounting assembly 130. The mounting assembly 130 cooperates with an annular support assembly 210 on the top of the outer casing 200. The cavity 110 has a gradually changing cross-section structure, with a square cross-section at the top and a gradually changing circular cross-section downwards. An air inlet 140 is located on the lower side wall of the cavity 110, and a downwardly recessed arc-shaped guide section 150 is formed at the bottom of the cavity 110. The guide section 150 has a high-level water inlet 151 and a low-level drain outlet 152.
[0033] The inner tank structure 100 of the washing machine described in the above embodiment has a gradually decreasing cross-sectional structure in its cavity 110, with the upper part being square and gradually decreasing to a circular cross-section downwards. An air inlet 140 is provided on the lower side wall of the cavity 110. When airflow enters the cavity 110 through the air inlet 140, the circular bottom of the cavity 110 forms a low-resistance airflow channel, facilitating the rotational movement of the airflow to form vortices and creating a more stable airflow circulation. This causes the air to spiral upwards along the inner wall, extending the airflow path and residence time, thereby improving the drying efficiency of the inner tank and the items inside. Furthermore, the gradually decreasing cross-sectional design of the cavity 110 reduces stress concentration, helping to improve the overall strength of the inner tank structure 100 and enhance its pressure resistance. Because the mounting component 130 of the top step 120 of the cavity cooperates with the support component 210 on the top of the outer shell, the inner tank structure 100 is stabilized within the outer shell 200 and is not easily shaken. In addition, the flow guide 150 at the bottom of the cavity is provided with a high-level water inlet 151 and a low-level drain outlet 152. The arc-shaped design of the flow guide 150 guides the water to flow out quickly from the drain outlet 152, reducing moisture residue and improving the drying efficiency of the inner tank.
[0034] For further details, please refer to... Figure 2 and Figure 3 The cavity 110 has downwardly extending support feet 160 on its outer periphery. Each support foot 160 includes a support column 161 extending vertically to the bottom of the outer shell 200 and a reinforcing rib 162. One side of the reinforcing rib 162 connects to the support column 161, and the other side connects to the outer wall of the cavity 110 and extends to the guide portion 150, forming a mounting cavity 220 between the bottom of the cavity 110 and the bottom of the outer shell 200. Specifically, the support feet support the inner liner structure 100, improving its stability, and form the mounting cavity 220 with the bottom of the outer shell 200. The mounting cavity 220 can be used to assemble other parts, improving space utilization. The reinforcing rib 162 connects the support column 161 and the cavity 110, increasing the contact area between the support foot 160 and the cavity 110, enhancing the strength of the support foot 160 and the load-bearing capacity of the inner liner structure 100.
[0035] Preferably, each support column 161 is provided with three reinforcing ribs 162, so that the cross-section of one support foot 160 and the side wall of the connected cavity 110 forms a triangular support structure. Specifically, the triangular support structure can greatly improve the structural and support strength of the support foot 160.
[0036] For further details, please refer to... Figure 3 The bottom end of the guide section 260 is provided with a downwardly extending connector 153. Specifically, the connector 153 can be connected and assembled with other parts of the mounting cavity 220 to further improve the load-bearing capacity of the cavity 110.
[0037] For further details, please refer to... Figure 4 and Figure 5 The guide section 150 is provided with a downwardly recessed annular water collection groove 154, and the drain outlet 152 is located inside the annular water collection groove 154. The inner side of the annular water collection groove 154 is an inclined surface 155, which connects to the inlet of the drain outlet 152. The drain outlet 152 is a countersunk hole. Specifically, the guide section 150 guides the water flow to concentrate in the annular water collection groove 154, the inclined surface 155 accelerates the water flow and reduces residue; the countersunk hole design of the drain outlet 152 facilitates the assembly of the filter screen to prevent clogging.
[0038] For further details, please refer to... Figure 4 and Figure 5 The annular water collecting tank 154 is also provided with a through hole 156, which extends downward to form a cylindrical receiving cavity. Specifically, a heating element can be installed in the receiving cavity to heat the airflow in the annular water collecting tank 154 and the cavity 110, increase the cavity temperature, accelerate the drying of moisture in the bottom annular water collecting tank 154, and extend the residence time of the hot air flow in the cavity, so that the hot air can come into more thorough contact with the cavity 110 and the items inside the cavity, which is beneficial to the drying of the inner liner 100 and the items inside the cavity, and improves the drying efficiency.
[0039] For further details, please refer to... Figure 2 and Figure 6 The support assembly 210 includes an annular support groove 211 and circumferentially distributed positioning grooves 212 on the support groove 211. The mounting assembly 130 includes a mounting plate 131 that mates with the support groove 211 and positioning ribs 132 circumferentially distributed along the step 120. The upper part of the positioning ribs 132 is connected to the inner side of the mounting plate 131, and the lower part extends vertically to the outer side of the cavity 110. Specifically, the mounting plate 131 is inserted into the support groove 211 to form axial fixation, and the positioning ribs 132 are engaged in the positioning grooves 212 to form radial fixation. The annular design of the mounting plate 131 and the circumferential distribution of the positioning ribs 132 form circumferential fixation, ensuring precise alignment and connection stability.
[0040] For further details, please refer to... Figure 2 and Figure 6The outer periphery of the step 120 is also provided with a radially extending locking boss 133, and the top of the outer casing 200 is provided with a corresponding clearance groove 230. Specifically, the locking boss 133 and the clearance groove 230 facilitate alignment and fixation.
[0041] For further details, please refer to... Figure 5 The inner wall of the cavity 110 is also provided with a shelf support 170. Specifically, the shelf support 170 can stabilize the shelf within the cavity 110.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cleaning machine inner tank structure, disposed within the outer shell of the cleaning machine, characterized in that, The cavity includes a top-opening cavity with an outwardly extending annular step at the top of the cavity and a downwardly extending mounting assembly at the bottom of the step. The mounting assembly cooperates with an annular support assembly at the top of the outer shell. The cavity has a gradually changing cross-sectional structure, with the upper part being a square cross-section that gradually changes to a circular cross-section downwards. An air inlet is provided below the side wall of the cavity, and a downward-recessed arc-shaped flow guide is formed at the bottom of the cavity. The flow guide is provided with a high-level water inlet and a low-level drain outlet.
2. The inner tank structure of the cleaning machine according to claim 1, characterized in that: The outer periphery of the cavity is provided with a downwardly extending support foot. The support foot includes a support column extending vertically to the bottom of the outer shell and a reinforcing rib. One side of the reinforcing rib is connected to the support column, and the other side is connected to the outer wall of the cavity and extends to the guide portion, so that the bottom of the cavity and the bottom of the outer shell form an installation cavity.
3. The inner tank structure of the cleaning machine according to claim 2, characterized in that: The bottom end of the guide section is provided with a downwardly extending connector.
4. The inner tank structure of the cleaning machine according to claim 1, characterized in that: The guide section is also provided with a downwardly recessed annular water collection groove, and the drain outlet is located in the annular water collection groove. The inner side of the annular water collection groove is an inclined surface, and the inclined surface is connected to the inlet of the drain outlet. The drain outlet is a countersunk hole.
5. The inner tank structure of the cleaning machine according to claim 4, characterized in that: The annular water collection trough is also provided with a through hole, which extends downward to form a cylindrical receiving cavity.
6. The cleaning machine inner tank structure according to any one of claims 1 to 5, characterized in that: The support assembly includes an annular support groove and circumferentially distributed positioning grooves in the support groove. The mounting assembly includes a mounting plate that mates with the support groove and circumferentially distributed positioning ribs along the step. The upper part of the positioning rib is also connected to the inner side of the mounting plate, and the lower part extends vertically to the outer side of the cavity.
7. The inner tank structure of the cleaning machine according to claim 6, characterized in that: The outer periphery of the stepped position is also provided with a radially extending locking boss, and the corresponding position on the top of the outer shell is provided with a clearance groove.
8. The cleaning machine inner tank structure according to any one of claims 1 to 5, characterized in that: The inner wall of the cavity is also provided with a shelf support.
9. A cleaning machine, characterized in that, The cleaning machine inner tank structure includes any one of claims 1 to 8.
Citation Information
Patent Citations
Drying structure for cleaning machine and cleaning machine
CN219070188U