Damping pad for a cleaning device and cleaning device

Abstract

The utility model discloses a kind of damping pad and cleaning equipment for cleaning equipment, cleaning equipment includes shell and motor being set in shell, damping pad includes substrate, including first surface and second surface being set back;Mounting portion is set on first surface, and mounting portion includes first enclosure structure, and first enclosure structure is formed around and is used to install the mounting cavity of motor;Support portion is set on second surface, and support portion includes the second enclosure structure of abutting with shell, and second enclosure structure is formed around and is first buffer cavity;The connection end of mounting portion is connected with substrate, and the orthographic projection on the plane of substrate is contained in the orthographic projection range of first buffer cavity on the plane of substrate;Substrate is configured to produce elastic bending deformation based on external load suffered by mounting portion.The utility model can reduce vibration and noise, improve the comfort and reliability of cleaning equipment, prolong the service life of cleaning equipment.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, specifically relating to a vibration damping pad for cleaning equipment and the cleaning equipment itself. Background Technology

[0002] Cleaning equipment (such as vacuum cleaners) typically contains a motor. The vibrations generated by the motor during operation are transmitted to the outer casing of the cleaning equipment through its mounting structure, producing vibrations and noise and affecting the user experience. To reduce vibration transmission, existing technologies usually incorporate elastic damping pads between the motor and the casing.

[0003] However, traditional vibration damping pads often fall short of expectations in terms of vibration reduction, with limited capacity to absorb vibration energy. When faced with significant vibrations and impacts generated by the motor, they struggle to dissipate energy efficiently, resulting in a considerable amount of vibration energy still being transferred to the outer casing. This leads to increased vibration and noise during the use of the cleaning equipment, severely impacting the user experience.

[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a vibration damping pad and a cleaning device for cleaning equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a vibration damping pad and cleaning equipment for cleaning equipment, which can reduce vibration and noise, improve the comfort and reliability of cleaning equipment, and extend the service life of cleaning equipment.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A vibration damping pad for a cleaning device, the cleaning device including a housing and a motor disposed within the housing, the vibration damping pad comprising:

[0008] The substrate includes a first surface and a second surface disposed opposite to each other;

[0009] A mounting portion is disposed on a first surface, the mounting portion including a first enclosure structure, the first enclosure structure enclosing a mounting cavity for mounting a motor;

[0010] A support portion is disposed on the second surface, the support portion including a second enclosure structure that abuts against the outer shell, the second enclosure structure enclosing to form a first buffer cavity;

[0011] The connection end of the mounting part connected to the substrate has its orthographic projection on the substrate plane contained within the orthographic projection range of the first buffer cavity on the substrate plane.

[0012] The substrate is configured to undergo elastic bending deformation based on the external load applied to the mounting portion.

[0013] The technical solution provided by another specific embodiment of this utility model is as follows:

[0014] A cleaning device, characterized in that it includes the aforementioned vibration damping pad.

[0015] Compared with the prior art, the vibration damping pad and cleaning equipment of this utility model can absorb and consume the impact and vibration energy to a great extent by setting a specially structured vibration damping pad between the motor and the housing. This significantly reduces the vibration and noise transmitted to the housing and handle, improves the comfort of using the cleaning equipment, and extends the service life of core components such as the motor due to the improved vibration isolation effect, thereby enhancing the overall reliability of the product. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of the cleaning equipment in one embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the vibration damping pad in one embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of the vibration damping pad at point AA in one embodiment of the present invention;

[0020] Figure 4 This is a cross-sectional view of the vibration damping pad at point AA in another embodiment of the present invention.

[0021] Explanation of key figure labels:

[0022] 101 Motor

[0023] 102 Outer shell

[0024] 1 substrate

[0025] 11 First Surface

[0026] 12 Second Surface

[0027] 121 Center countertop

[0028] 122 Ring Wall

[0029] 123 Connecting Surface

[0030] 13 Second Buffer Chamber

[0031] 2 Installation Department

[0032] 21 Installation cavity

[0033] 3 Support section

[0034] 31 First buffer chamber. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0039] Reference Figure 1 As shown, this embodiment provides a cleaning device, such as a vacuum cleaner. The cleaning device includes a housing 102, a motor 101 disposed within the housing 102, and a vibration damping pad installed between the motor 101 and the housing 102.

[0040] When the motor 101 operates, the load generated is transmitted through the motor 101 housing to the vibration damping pad and then to the outer casing 102. This load constitutes an external load acting on the vibration damping pad. This external load includes the instantaneous impact load generated when the motor 101 starts, stops, and reverses; the periodic vibration load generated by rotor imbalance when the motor 101 operates at a constant speed; and the random, irregular vibration load experienced by operators carrying cleaning equipment in complex working environments (such as when walking or running). The vibration damping pad employs a unique structural design that can absorb and dissipate the impact and vibration energy carried by the aforementioned external loads to a great extent, thereby significantly reducing the vibration transmitted to the outer casing 102 and the handle, reducing noise, improving the comfort of using the cleaning equipment, and reducing collision and friction between the motor 101 and the outer casing 102 and its internal components due to the improved vibration isolation effect. This extends the service life of core components such as the motor 101, thus enhancing the overall reliability of the product.

[0041] Specifically, refer to Figures 1-3 As shown, the vibration damping pad mainly includes a generally disk-shaped base plate 1. The base plate 1 has a first surface 11 and a second surface 12 arranged opposite to each other. A mounting portion 2 is provided on the first surface 11 of the base plate 1. In this embodiment, the mounting portion 2 includes a first enclosure structure, the inner wall and / or outer wall of which can be configured to be generally perpendicular to the base plate 1 or at a certain angle relative to the plane of the base plate 1. The first enclosure structure encloses and forms a mounting cavity 21 for mounting the motor 101. The size of the mounting cavity 21 is designed to fit the housing of the motor 101, that is, the motor can just enter the mounting cavity, or the motor and the mounting cavity have an industry-recognized, appropriate installation force, and can use a normal interference fit. A support portion 3 is provided on the second surface 12 of the base plate 1. The support portion 3 includes a second enclosure structure that abuts against the housing 102 of the cleaning equipment. The second enclosure structure encloses and forms a first buffer cavity 31, the inner wall and / or outer wall of which can be configured to be generally perpendicular to the base plate 1 or at a certain angle relative to the plane of the base plate 1. The support part 3 abuts against the outer shell 102 through the plane at its end, thereby transmitting the force buffered by the mounting part 2 and the damping pad of the base plate 1 to the outer shell 102. The plane at the end of the support part 3 axially limits the entire damping pad, thereby indirectly limiting the motor 101. On the plane of the base plate 1, the orthographic projection of the connection end of the mounting part 2 to the base plate 1 on the plane of the base plate 1 is completely contained within the orthographic projection range of the first buffer cavity 31 on the plane of the base plate 1.

[0042] Because the substrate 1 is constructed as an elastic structure with appropriate thickness, the substrate 1 undergoes reciprocating elastic bending deformation based on external loads. This deformation manifests as periodically bending towards the support 3, returning to an approximately flat state, and then bending towards the mounting portion 2, continuously repeating this dynamic process. This continuous reciprocating deformation process can absorb and dissipate a large amount of impact and vibration energy.

[0043] It should be noted that the vibration and impact generated by the motor 101 during operation are first transmitted to the mounting part 2 through the motor 101 housing, and then the force is transmitted to the base plate 1. When the impact and vibration energy carried by the external load generated by the motor 101 acts perpendicularly on the base plate 1 through the mounting part 2, since the point of force application is directly below the unsupported area where the first buffer cavity 31 is located, while the support part 3 with solid support is located outside the point of force application, this asymmetrical design of the mounting part 2 and the support part 3 facilitates the bending deformation of the base plate 1 towards the support part 3 under the action of external load. The first buffer cavity 31 provides space for the bending deformation of the base plate 1, avoiding structural interference. The bending deformation of the base plate 1 effectively absorbs the energy of the impact and vibration, completing the first buffering. The remaining force continues to be transmitted to the support part 3 through the base plate 1, and a second buffering is performed through the axial compression deformation of the support part 3 and the deformation of the first buffer cavity 31. Finally, the vibration force after the second buffering is transmitted to the outer shell 102 through the support part 3, thereby achieving vibration reduction and noise reduction effects. Unlike traditional vibration damping pads, the vibration damping pad of this utility model is designed by projecting the connection end of the mounting part 2 and the substrate 1 into the first buffer cavity 31. This allows the substrate 1 to generate a larger elastic bending deformation under external load, first absorbing and dissipating most of the impact and vibration energy; then significantly reducing the energy transmitted to the support part 3. After secondary buffering by the support part 3, the energy transmitted to the cleaning equipment housing 102 is further reduced. This improved vibration damping pad has a better noise reduction and vibration damping effect.

[0044] It should be noted that, in specific implementation, the walls (i.e., inner and outer walls) of the first and second enclosure structures can be configured according to design requirements. Although the accompanying drawings mainly show preferred embodiments where the walls of the first and second enclosure structures are substantially perpendicular to the substrate 1, those skilled in the art will understand that the walls of the first and second enclosure structures can also be at a certain angle relative to the plane of the substrate 1 (i.e., not perpendicular). This inclined design can be used to adjust the radial stiffness of the enclosure structure, guide stress distribution, or facilitate demolding manufacturing. Therefore, both vertical and inclined wall designs should be included within the protection scope of this utility model.

[0045] Although the accompanying drawings primarily illustrate a preferred embodiment where the motor 101 housing contacts the inner wall of the mounting portion 2, those skilled in the art will understand that, due to variations in the motor 101 housing structure, there are multiple possibilities for the mating installation of the motor 101 and the mounting portion 2. In other embodiments, the motor 101 housing contacts both the inner wall and the end wall of the mounting portion 2; or, the motor 101 housing contacts the inner wall, end wall, and outer wall of the mounting portion 2. As long as the motor 101 is mated with the vibration damping pad, all such mating installations should be included within the scope of protection of this utility model.

[0046] Reference Figure 3 As shown, in this embodiment, the thickness of the substrate 1 is set to be less than the height of the mounting portion 2 and the support portion 3 in the direction perpendicular to the substrate 1. Since the substrate 1 is thinner in the axial direction compared to the mounting portions 2 and the support portions 3 on both sides, the axial bending stiffness of the substrate 1 is significantly lower than the compressive stiffness of the mounting portions 2 and the support portions 3. Therefore, when impact and vibration energy is transmitted from the mounting portion 2 to the substrate 1, according to the principle of minimum action, the path that the object actually follows among all possible motion paths is the path that minimizes the action. It can be concluded that during the transmission of impact and vibration energy, the damping pad will preferentially choose the path with the lowest stiffness—that is, the substrate 1—to deform and dissipate energy. This allows the substrate 1 to undergo elastic bending deformation first, converting a large amount of impact and vibration energy into its own elastic strain energy, thereby effectively dissipating the initial impact and vibration energy. Simultaneously, the bending deformation of the substrate 1 allows stress to be evenly distributed on it, avoiding stress concentration in narrow areas such as the roots of the mounting portion 2 and the support portion 3, thereby improving the fatigue durability and damping reliability of the damping pad under long-term repeated impact and vibration.

[0047] It should be noted that the thickness design of substrate 1 must comprehensively consider the balance between elastic deformation capability and structural strength. If substrate 1 is blindly too thin, although it is easy to deform, its structural strength and fatigue life may be insufficient, making it difficult to withstand multiple or high-energy external loads. Conversely, if substrate 1 is too thick, its stiffness will be too high, limiting its deformation capability and affecting the main vibration reduction effect. Therefore, the thickness of substrate 1 is not necessarily better the thinner or thicker it is, but should be optimized.

[0048] As a preferred optimization, this application can use substrate 1 as the core elastic deformation element, and appropriately increase its thickness. An appropriately thickened substrate 1 can not only absorb more impact energy, thereby improving the vibration damping effect, but also significantly improve the fatigue life and overall structural durability of the vibration damping pad. For example, the thickness of substrate 1 can be configured in different proportions to the wall thickness of mounting portion 2. For instance, the minimum thickness of substrate 1 can be designed to be 0.2 to 0.8 times the wall thickness of mounting portion 2, such as 0.3, 0.5, or 0.7 times; and / or, the minimum thickness of substrate 1 can be designed to be 0.15 to 0.7 times the wall thickness of support portion 3, such as 0.2, 0.4, or 0.6 times. The disclosure of these multiple proportional ranges ensures the flexibility and selectability of the vibration damping pad structural parameters, meeting the performance requirements under different working conditions. It is understood that the purpose of disclosing these proportional ranges herein is to provide specific implementation examples and design guidance, and is not intended to limit this utility model. Without departing from the core concept of this utility model, other variations in the relevant dimensional proportions should also be considered within the protection scope of this utility model.

[0049] Traditional vibration damping pads are mostly single block or simple boss structures, and their vibration damping effect is limited. On the one hand, they are difficult to effectively filter the high-frequency vibration of motor 101; on the other hand, when faced with large external loads, their buffer stroke and energy absorption capacity are insufficient, which may cause the vibration damping pad to be crushed or transmit a large impact force to the housing 102.

[0050] Therefore, to solve the above-mentioned problems, the thickness of the substrate 1 in this application has a unique design. In one embodiment, the thickness of the substrate 1 gradually increases from its geometric center toward its outer peripheral edge. (Refer to...) Figure 4 As shown, in another embodiment, the thickness of substrate 1 increases in a stepped manner from its geometric center toward the outer periphery. This design results in the substrate 1 being thinnest in the central region and thickest at the edges. The central region can effectively absorb high-frequency vibrations, while the edge regions provide stable and reliable support. Specifically, when impact and vibration energy acts on the center of substrate 1, the low-stiffness central region preferentially undergoes large-curvature bending deformation, efficiently converting impact kinetic energy into elastic potential energy. As the energy increases, the deformation area gradually expands to the thicker regions of substrate 1. At this point, due to the increased thickness and stiffness, the bending stiffness of substrate 1 increases, effectively resisting further deformation.

[0051] Compared to designs where the thickness of substrate 1 gradually increases, designs with a stepped increase in thickness of substrate 1 create abrupt change points at each thickness step for better radial vibration damping. This significantly reduces the impact and vibration energy propagating radially, more effectively blocks the transmission path of high-frequency vibrations, and confines and dissipates more impact and vibration energy in the central region of substrate 1, thereby further improving its radial filtering performance. Furthermore, the stepped substrate 1 facilitates production and cost control.

[0052] Specifically, refer to Figure 4 As shown, in this embodiment, the second surface 12 of the damping pad is recessed to form a flat central platform 121 approximately located at the center of the second surface 12, and an annular wall 122 extending downward from the central platform 121 and surrounding its outer periphery. The end of the annular wall 122 away from the second surface 12 (i.e., its lower end) forms a flat connecting surface 123, which connects to the top of the support portion 3. According to this design, the central platform 121, the annular wall 122, and the connecting surface 123 form a step, and the central platform 121 and the annular wall 122 together enclose a semi-enclosed second buffer cavity 13. This second buffer cavity 13 is located above the first buffer cavity 31 and maintains communication with the first buffer cavity 31 through an opening at the lower end of the annular wall 122, forming a mutually penetrating buffer cavity. By adding an independent second buffer cavity 13, the total buffer stroke is effectively extended, increasing the energy absorption capacity. On the plane of substrate 1, the orthographic projection of mounting portion 2 falls at least partially or completely within the orthographic projection range of second buffer cavity 13. When impact and vibration energy is transmitted through mounting portion 2, its force acts directly on the top wall of second buffer cavity 13 (i.e., at the central platform 121), causing the central platform 121 to immediately undergo bending deformation. This ensures that impact and vibration energy can be guided to the preset second buffer cavity 13 for dissipation to the maximum extent, thereby significantly improving the sensitivity and energy absorption efficiency of the initial buffering stage. It should be noted that the protection scope of this utility model is not limited to the specific structure shown in the figures. The second buffer cavity 13 shown in the figures is a single-stage buffer structure, which is only one specific embodiment. Depending on actual needs, for example, when the second surface 12 of substrate 1 is provided with multiple steps, the second buffer cavity 13 can also be set as a multi-stage buffer structure. All modifications and improvements made to the buffer cavity structure based on the inventive concept of this utility model should be considered to fall within the protection scope of this utility model.

[0053] Preferably, refer to Figure 3 , Figure 4As shown, in this embodiment, the wall thickness of the mounting portion 2 is less than that of the support portion 3. When the motor 101 operates, it generates a large number of high-frequency micro-amplitude vibrations. The end of the motor 101 is mounted in the mounting cavity 21 of the mounting portion 2. Because the mounting portion 2 is thinner, its radial stiffness is lower. This low stiffness characteristic makes it prone to small elastic deformation, effectively absorbing and isolating circumferential high-frequency vibrations and preventing them from being transmitted to the support portion 3 through the substrate 1. When the motor 101 starts, stops, or encounters an obstacle, it generates a large number of low-frequency impacts. When the vibration damping pad transmits the low-frequency impacts that the mounting portion 2 cannot absorb to the support portion 3, the support portion 3, with its thicker wall and greater stiffness, provides strong support, enabling the vibration damping pad to withstand larger impact displacements. This prevents the motor 101 from colliding with the housing 102, ensuring structural stability and support reliability. This differentiated wall thickness design allows the mounting part 2 to act as a high-frequency damper, effectively isolating most of the high-frequency vibrations generated by the motor 101. Simultaneously, it enables the support part 3 to act as a low-frequency damper, handling residual low-frequency impacts and vibration energy. The two work together to achieve graded processing of broadband impact and vibration energy, resulting in a superior broadband vibration reduction effect compared to a single uniform wall thickness.

[0054] To facilitate the formation of the mounting cavity 21 and the first buffer cavity 31, the first enclosure structure and the second enclosure structure can have various implementation forms. For example, in one embodiment, at least one of the first enclosure structure and the second enclosure structure is an integrally formed ring plate with a closed cross-section; in another embodiment, at least one of the first enclosure structure and the second enclosure structure can be a plurality of spaced plates that are distributed circumferentially and together enclose the corresponding cavity.

[0055] Furthermore, in terms of wall continuity, the first and second enclosure structures include an inner wall extending circumferentially along the mounting cavity or the first buffer cavity. This inner wall can be a continuous wall, i.e., a single, uninterrupted wall surface (e.g., a complete annular wall or a wall with a roughly square cross-section); or it can be a discontinuous wall, i.e., a wall surface composed of multiple independent wall segments spaced apart circumferentially.

[0056] For the aforementioned ring plate or plate, its inner and outer walls can be designed in different shapes according to actual needs. For example, to facilitate processing, its inner and / or outer walls can be constructed as planes; to facilitate stress dispersion and avoid stress concentration, its inner and / or outer walls can be constructed as curved surfaces; to facilitate gradient stiffness changes, its inner and / or outer walls can be constructed as stepped surfaces. The specific structural designs of the first and second enclosure structures are optional solutions provided by those skilled in the art based on different stiffness, weight, process, and assembly requirements, all of which can achieve the vibration reduction function of this utility model and should be considered within the protection scope of this utility model.

[0057] For ease of manufacturing, the substrate 1, mounting portion 2, and support portion 3 in this embodiment are integrally molded. The vibration damping pad is preferably manufactured using an elastic material in an integral mold, with common choices including rubber, silicone, or thermoplastic polyurethane elastomer.

[0058] Optionally, to prevent relative rotation between the vibration damping pad and the motor 101 during operation, the cross-section of the mounting cavity 21 within the mounting portion 2 can be designed as a polygon, ellipse, or other irregular shape. For example, in this embodiment, the cross-section of the mounting cavity 21 can be a roughly square with rounded corners. Of course, in other embodiments, the cross-section of the mounting cavity 21 can be elliptical, triangular, pentagonal, etc., all of which are within the scope of protection of this application.

[0059] It should be noted that the structures and working principles of the motor 101, housing 102, etc., which are not described in detail in this application, can all adopt existing solutions in the prior art, which can be understood and accepted by those skilled in the art, and therefore will not be described in detail.

[0060] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component 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.

[0061] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0063] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vibration damping pad for a cleaning device, the cleaning device comprising a housing and a motor disposed within the housing, characterized in that, The vibration damping pad includes: The substrate includes a first surface and a second surface disposed opposite to each other; A mounting portion is disposed on a first surface, the mounting portion including a first enclosure structure, the first enclosure structure enclosing a mounting cavity for mounting a motor; A support portion is disposed on the second surface, the support portion including a second enclosure structure that abuts against the outer shell, the second enclosure structure enclosing to form a first buffer cavity; The connection end of the mounting part connected to the substrate has its orthographic projection on the substrate plane contained within the orthographic projection range of the first buffer cavity on the substrate plane. The substrate is configured to undergo elastic bending deformation based on the external load applied to the mounting portion.

2. The vibration damping pad according to claim 1, characterized in that, The thickness of the substrate is less than the height of the mounting portion and the support portion in the direction perpendicular to the substrate.

3. The vibration damping pad according to claim 1, characterized in that, The thickness of the substrate increases in a stepped manner from its geometric center toward its outer peripheral edge.

4. The vibration damping pad according to claim 3, characterized in that, The substrate is provided with a second buffer cavity that communicates with the first buffer cavity. On the plane where the substrate is located, the orthographic projection of the mounting part is at least partially contained within the orthographic projection range of the second buffer cavity.

5. The vibration damping pad according to claim 1, characterized in that, The thickness of the substrate gradually increases from its geometric center toward its outer peripheral edge.

6. The vibration damping pad according to claim 1, characterized in that, The wall thickness of the mounting part is less than the wall thickness of the support part.

7. The vibration damping pad according to claim 1, characterized in that, The first and / or second enclosure structure includes an inner wall extending circumferentially therein, the inner wall being a continuous or discontinuous wall.

8. The vibration damping pad according to claim 7, characterized in that, The inner and / or outer walls of the first and / or second enclosure structures are flat, curved, or stepped surfaces.

9. The vibration damping pad according to claim 1, characterized in that, The substrate, mounting portion, and support portion are integrally formed; and / or, The cross-section of the mounting cavity is one of a polygon, an ellipse, or an irregular shape; and / or, The vibration damping pad is a rubber vibration damping pad, a silicone vibration damping pad, or a thermoplastic polyurethane elastomer vibration damping pad.

10. A cleaning device, characterized in that, Includes the vibration damping pad as described in any one of claims 1 to 9.

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