Noise reduction and silencing structure of electric cupping device

Abstract

The utility model belongs to the technical field of electric cupping devices, and particularly relates to a noise reduction and silencing structure of an electric cupping device which comprises a cup and an air extractor. The air extractor is detachably connected with the tank cup and is used for sucking air in the tank cup; the air extractor comprises a round bowl-shaped outer shell, and a negative pressure air pump, a fixed support and a turbulent flow silencer are arranged in the outer shell; the negative pressure air pump is pressed and fixed to the inner bottom of the outer shell through the fixing support. A damping tail pad made of silica gel or rubber materials is arranged between the tail end of the negative pressure air pump and the outer shell. Silencing ribs are arranged on the inner wall of the outer shell; and the turbulent flow silencer is mounted at an exhaust port of the negative pressure air pump. According to the scheme, parts such as the shock pad, the silencing ribs and the turbulent flow silencer are adopted, and noise reduction and silencing can be effectively achieved on the premise that operation parameters of the negative pressure air pump are not reduced, the use experience feeling of consumers is not affected, heat dissipation of the air pump is not affected, the service life is not affected, and the size and weight are not increased.

Description

A noise reduction and sound absorption structure for an electric cupping device Technical Field

[0001] This utility model belongs to the technical field of electric cupping devices, specifically relating to a noise reduction and sound absorption structure for an electric cupping device. Background Technology

[0002] Most of the best-selling electric cupping devices on the market today use a negative pressure air pump as the negative pressure source. They are connected by an air pipe to draw air and achieve the negative pressure function. When the electric cupping device is working, the motor and pump head will generate a lot of noise. This noise will often affect the mood of the user or operator and reduce the user experience. Reducing noise can give the user a better experience.

[0003] Currently, the following solutions are used to reduce noise in products on the market: 1. Reducing the motor speed; this method reduces the flow rate and negative pressure value of the negative pressure pump, thus lowering the user experience. 2. Encasing the pump in silicone or sponge to isolate sound transmission and reduce noise; however, this method can affect motor heat dissipation, shorten its lifespan, and increase safety hazards. 3. Using sound-absorbing cotton or sintered copper silencers at the air pump's outlet; this method increases size and weight.

[0004] Therefore, it is necessary to design a noise reduction and soundproofing structure for electric cupping devices that ensures negative pressure, heat dissipation performance, and does not increase volume or weight. Summary of the Invention

[0005] To address the aforementioned problems in existing technologies, this solution provides a noise reduction and sound absorption structure for an electric cupping device.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A noise reduction and sound absorption structure for an electric cupping device, the electric cupping device including a cup and an air extraction device; the air extraction device is detachably connected to the cup and is used to extract air from inside the cup.

[0008] The air extraction device includes a bowl-shaped outer shell, inside which a negative pressure air pump, a fixed bracket, and a turbulence muffler are installed. The fixed bracket presses and fixes the negative pressure air pump to the bottom of the inner shell. A shock-absorbing tail pad made of silicone or rubber material is provided between the tail end of the negative pressure air pump and the outer shell. Silencing ribs are provided on the inner wall of the outer shell. The turbulence muffler is installed at the exhaust port of the negative pressure air pump.

[0009] As an alternative or supplement to the above structure: the shock-absorbing tail pad is L-shaped, the lateral portion of the shock-absorbing tail pad abuts against the side wall of the tail end of the negative pressure air pump, and the vertical portion of the shock-absorbing tail pad abuts against the end face of the tail end of the negative pressure air pump.

[0010] As an alternative or supplement to the above structure: the surface of the shock-absorbing tail pad that is in close contact with the negative pressure air pump is provided with a concave-convex wall structure.

[0011] As an alternative or supplement to the above structure: the sound-absorbing ribs are arranged on the inner ring surface of the outer shell, and several sound-absorbing ribs are arranged vertically side by side and distributed along the circumference of the outer shell.

[0012] As an alternative or supplement to the above structure: a connecting post is provided at each of the four corners of the fixed bracket, and the lower end of the connecting post is connected to the inner bottom of the outer shell.

[0013] As an alternative or supplement to the above structure: the turbulence muffler is provided with an exhaust chamber, which is connected to the exhaust port of the negative pressure air pump. The wall of the exhaust chamber is provided with several protrusions, which can slow down the air discharged from the exhaust port.

[0014] As an alternative or supplement to the above structure: the corner of the turbulence muffler is provided with an arc-shaped extension arm, the lower side of the extension arm is provided with a groove-shaped turbulence channel, and a turbulence plate is provided in the turbulence channel.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This solution uses components such as shock-absorbing pads, sound-absorbing ribs, and turbulence silencers to effectively reduce noise without lowering the operating parameters of the negative pressure air pump, affecting the user experience, air pump heat dissipation, service life, or increasing size and weight.

[0017] 2. The shock-absorbing pads in this solution can effectively eliminate the noise generated by the motor of the negative pressure air pump when it is working; the turbulence silencer can be made of silicone to replace the pipe structure, which can be quickly installed and effectively achieve shock absorption and noise reduction; the sound-absorbing protrusions set on the inside of the outer shell have a triangular cross-section, which can effectively absorb noise and further reduce noise through structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 is an exploded view of the electric cupping device in this scheme;

[0020] Figure 2 is a structural diagram showing the combination of the container and the air extraction device in this scheme;

[0021] Figure 3 is a cross-sectional structural diagram of the air extraction device;

[0022] Figure 4 is a structural diagram of the assembly of the shock-absorbing tail pad, the negative pressure air pump, and the outer shell.

[0023] Figure 5 is a schematic diagram of the turbulence muffler;

[0024] Figure 6 is a structural diagram of the turbulence muffler from another perspective.

[0025] In the diagram: 1-End cap; 2-Main control board; 3-Shock-absorbing tail pad; 4-Negative pressure air pump; 5-Outer shell; 51-Connection port; 52-Silencing rib; 6-Canister; 7-Fixed bracket; 8-Breakout muffler; 81-Extension arm; 82-Air inlet; 83-Intake hole; 84-Exhaust chamber; 85-Breakout vane. Detailed Implementation

[0026] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0027] As shown in Figures 1 to 6, this embodiment designs a noise reduction and sound absorption structure for an electric cupping device. The electric cupping device includes components such as a cupping cup 6 and an air extraction device. The air extraction device is detachably connected to the cupping cup 6 and is used to extract air from inside the cupping cup 6, thereby achieving the cupping effect. The cupping cup 6 has a connector, and the bottom of the air extraction device has a connection port 51 that engages with the connector. The connector and the connection port 51 are connected using an existing snap-fit ​​structure.

[0028] The air extraction device includes a cylindrical outer shell 5, inside which are installed components such as a negative pressure air pump 4, a fixed bracket 7, and a turbulence silencer 8. An end cap 1 is located on the top of the outer shell, which closes the outer shell 5. A main control board 2 is located at the center of the end cap 1, connected to and powered by a battery. A charging port can also be provided on the main control board for charging the battery. The main control board controls the power supply to and from the negative pressure air pump, as well as the opening and closing of the solenoid valve. Buttons are provided on the main control board for button operation and parameter setting.

[0029] Connecting posts are respectively provided at the four corners of the fixing bracket 7. The lower ends of the connecting posts are connected to the inner bottom of the outer shell 5, thereby pressing and fixing the negative pressure air pump 4 to the inner bottom of the outer shell 5 through the fixing bracket 7, improving the stability of the negative pressure air pump 4 after installation and reducing the vibration generated by the negative pressure air pump 4 during operation. A shock-absorbing tail pad 3 made of silicone or rubber is provided between the tail end of the negative pressure air pump 4 and the outer shell 5. The shock-absorbing tail pad 3 is L-shaped, with the horizontal part of the shock-absorbing tail pad 3 abutting against the side wall surface of the tail end of the negative pressure air pump 4, and the vertical part of the shock-absorbing tail pad 3 abutting against the end face of the tail end of the negative pressure air pump 4. The shock-absorbing tail pad 3 can absorb the vibration of the negative pressure air pump 4 and reduce the vibration transmitted to the outer shell 5.

[0030] The shock-absorbing tail pad 3 has an uneven wall structure on the surface that is in close contact with the negative pressure air pump 4. The uneven wall structure not only facilitates deformation and increases the absorption of vibration, but also facilitates ventilation, thereby improving the heat dissipation performance of the negative pressure air pump 4.

[0031] The inner wall of the outer casing 5 is provided with sound-absorbing ribs 52; the sound-absorbing ribs 52 are arranged on the inner annular surface of the outer casing 5, and several sound-absorbing ribs 52 are arranged vertically side by side and distributed along the circumference of the outer casing 5. Noise transmitted in the form of sound waves inside the outer casing 5 can be absorbed by the sound-absorbing ribs 52. The vibrations generated when different sound-absorbing ribs 52 absorb noise can cancel each other out, thereby improving the noise absorption effect and achieving noise reduction.

[0032] A turbulence muffler 8 is installed at the exhaust port of the negative pressure air pump 4. The air discharged from the negative pressure air pump 4 is discharged outward through the turbulence muffler 8. The turbulence muffler 8 is provided with an exhaust chamber 84, which is connected to the exhaust port of the negative pressure air pump 4. Several protrusions are provided on the cavity wall of the exhaust chamber 84. The protrusions can slow down the air discharged from the exhaust port, thereby avoiding noise caused by excessive air speed.

[0033] Furthermore, the turbulence muffler 8 has an arc-shaped extension arm 81 at its corner, and a groove-shaped turbulence channel is provided on the lower side of the extension arm 81. A turbulence vane 85 is provided in the turbulence channel. The exhaust chamber 84 is connected to the turbulence channel. When air enters the turbulence channel from the exhaust chamber 84 and then exits, the turbulence vane 85 in the turbulence channel can further decelerate the air, thereby reducing noise. The turbulence muffler 8 is also provided with an air inlet 82 and an air intake hole 83, which are connected to each other. The air inlet 82 is used to connect to the canister 6 through a pipe, and the air intake hole 83 is used to connect to the negative pressure air pump 4, so that the negative pressure air pump 4 can draw air from the air intake hole 83.

[0034] This design utilizes multiple noise reduction components, including the shock-absorbing tail pad 3, the sound-absorbing ribs 52, and the turbulence-induced silencer 8, to effectively reduce the noise during operation of the electric cupping device. Noise reduction and silencing are achieved without reducing the motor speed of the negative pressure air pump 4, compromising the user experience, or significantly reducing heat dissipation. The shock-absorbing tail pad 3 does not enclose the negative pressure air pump 4, minimizing its impact on heat dissipation, while also effectively absorbing vibrations, thus reducing the overall vibration of the electric cupping device. The turbulence-induced silencer 8 effectively replaces the exhaust pipe of the cupping device, repeatedly slowing down the exhaust air to reduce vibrations and noise generated by high-speed airflow. The sound-absorbing ribs 52 reflect and absorb the sound transmitted outwards by the negative pressure air pump 4, further reducing outward noise and ensuring effective noise reduction.

[0035] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A noise reduction and sound absorption structure for an electric cupping device, characterized in that: The electric cupping device includes a cup (6) and an air extraction device; the air extraction device is detachably connected to the cup (6) and is used to extract air from the cup (6); the air extraction device includes a bowl-shaped outer shell (5), and a negative pressure air pump (4), a fixed bracket (7) and a turbulence muffler (8) are provided inside the outer shell (5); the fixed bracket (7) presses and fixes the negative pressure air pump (4) to the inner bottom of the outer shell (5); a shock-absorbing tail pad (3) made of silicone or rubber material is provided between the tail end of the negative pressure air pump (4) and the outer shell (5); a sound-absorbing rib (52) is provided on the inner wall of the outer shell (5); the turbulence muffler (8) is installed at the exhaust port of the negative pressure air pump (4).

2. The noise reduction and sound absorption structure of the electric cupping device according to claim 1, characterized in that: The shock-absorbing tail pad (3) is L-shaped. The horizontal part of the shock-absorbing tail pad (3) abuts against the side wall of the tail end of the negative pressure air pump (4), and the vertical part of the shock-absorbing tail pad (3) is against the end face of the tail end of the negative pressure air pump (4).

3. The noise reduction and sound absorption structure of the electric cupping device according to claim 2, characterized in that: The shock-absorbing tail pad (3) has a concave-convex wall structure on the surface that is in close contact with the negative pressure air pump (4).

4. The noise reduction and sound absorption structure of the electric cupping device according to claim 1, characterized in that: The sound-absorbing ribs (52) are arranged on the inner ring surface of the outer shell (5), and several sound-absorbing ribs (52) are arranged vertically side by side and distributed along the periphery of the outer shell (5).

5. The noise reduction and sound absorption structure of the electric cupping device according to claim 1, characterized in that: The fixed bracket (7) is provided with connecting columns at its four corners, and the lower end of the connecting column is connected to the inner bottom of the outer shell (5).

6. The noise reduction and sound absorption structure of the electric cupping device according to any one of claims 1-5, characterized in that: The turbulence muffler (8) is provided with an exhaust chamber (84), which is connected to the exhaust port of the negative pressure air pump (4). The wall of the exhaust chamber (84) is provided with several protrusions, which can slow down the air discharged from the exhaust port.

7. The noise reduction and sound absorption structure of the electric cupping device according to claim 6, characterized in that: The turbulence muffler (8) has an arc-shaped extension arm (81) at its corner, and a groove-shaped turbulence channel is provided on the lower side of the extension arm (81), in which a turbulence plate (85) is provided.

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