Negative pressure protection structure of gua sha instrument

Abstract

The utility model relates to a kind of negative pressure protection structure of scraping instrument, including scraping base, negative pressure air nozzle for cooperating with negative pressure air pump is equipped in the scraping base, the scraping base is equipped with negative pressure cavity, the air inlet that is communicated with the negative pressure air nozzle is equipped in the negative pressure cavity, the air inlet is equipped with blocking protection component, by setting blocking protection component in air inlet, by setting blocking protection component in air inlet, essential oil can be effectively avoided into the air inlet of skin bowl and wet motor, to ensure the continuous stability of negative pressure while protecting motor.

Description

Technical Field

[0001] This utility model relates to the field of scraping device technology, and in particular to a negative pressure protection structure for a scraping device. Background Technology

[0002] Currently, gua sha (scraping therapy) devices are available on the market. Before gua sha, essential oil is typically applied to the skin. Then, an air intake device uses a pump to draw air from the device, creating negative pressure inside. This causes the gua sha base to adhere to the skin and move, achieving the effects of gua sha and cupping. However, because the air inlet is located on the base, when the device uses the air inlet to create negative pressure, air enters through the inlet. Furthermore, after the inlet contacts the skin, the air pump, driven by a motor, rotates an eccentric wheel, causing the leather cup to oscillate and draw in air. Since the leather cup has an air intake hole, essential oil can enter the air intake hole along the inlet and eventually fall onto the motor, potentially burning it out. Utility Model Content

[0003] The purpose of this invention is to provide a negative pressure protection structure for a gua sha device. By setting a blocking and protective component at the air inlet, it can effectively prevent essential oil from entering the air inlet of the leather cup and wetting the motor, thereby ensuring the continuous and stable negative pressure while protecting the motor.

[0004] To solve the above-mentioned technical problems, the present invention provides a negative pressure protection structure for a gua sha device, including a gua sha base, a negative pressure nozzle for use with a negative pressure air pump inside the gua sha base, a negative pressure chamber inside the gua sha base, an air inlet communicating with the negative pressure nozzle inside the negative pressure chamber, and a blocking protection component in cooperation with the air inlet.

[0005] Preferably, the blocking and protection component includes an outer protruding ring disposed at the outer end of the air inlet and an inner protruding post disposed inside the air inlet.

[0006] More preferably, the air inlet is offset from the center of the negative pressure chamber.

[0007] More preferably, the air inlet is located in the middle of the negative pressure chamber, and an outer groove is provided at the outer end of the air inlet, and the outer convex ring is detachably installed in the outer groove.

[0008] More preferably, the inner diameter of the outer convex ring is less than or equal to the diameter of the air inlet.

[0009] More preferably, the outer convex ring is an elastic plastic ring.

[0010] More preferably, a pressure relief hole is provided on the inner side of the air inlet, and an installation connection hole is also provided in the negative pressure chamber.

[0011] The beneficial effects of this utility model are as follows: It includes a gua sha base, which is equipped with a negative pressure nozzle for use with a negative pressure air pump. The gua sha base has a negative pressure chamber, and the negative pressure chamber has an air inlet that communicates with the negative pressure nozzle. The air inlet is equipped with a blocking and protection component. By setting the blocking and protection component at the air inlet, it is possible to effectively prevent essential oil from entering the air inlet hole of the leather cup and wetting the motor, thereby ensuring the continuous and stable negative pressure while protecting the motor. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0013] Figure 2 This is a structural schematic diagram of another aspect of Embodiment 1 of this utility model.

[0014] Figure 3 This is a structural schematic diagram of Embodiment 2 of this utility model. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] Example 1, as Figure 1 , 2 As shown, a negative pressure protection structure for a gua sha device includes a gua sha base 1. The gua sha base 1 has a negative pressure nozzle 2 for use with a negative pressure air pump. The gua sha base 1 has a negative pressure chamber 6, and the negative pressure chamber 6 has an air inlet 3 communicating with the negative pressure nozzle 2. The air inlet is fitted with a blocking protection component, which includes an outer protruding ring 4 at the outer end of the air inlet 3 and an inner protruding post 5 inside the air inlet 3. An air inlet hole is provided between the air inlet 3 and the negative pressure nozzle 2. The inner protruding post 5 is coaxially connected to the air inlet hole. After negative pressure inhalation, when the gua sha device is moved across the skin, the outer convex ring 4 first scrapes away the essential oil on the skin. If a small amount enters the air inlet 3, the inner convex post 5 blocks it a second time, preventing the essential oil from entering the negative pressure nozzle 2 through the air inlet. Therefore, the air inlet 3 is protected by the double layer of inner convex post 5 and outer convex ring 4, which prevents the essential oil from being sucked into the air inlet 3. Consequently, the essential oil will not enter the motor through the air inlet of the leather cup. This effectively prevents the essential oil from entering the air inlet of the leather cup and wetting the motor, thus ensuring the continuous and stable negative pressure while protecting the motor.

[0017] In this embodiment, the air inlet 3 is offset from the center of the negative pressure chamber 6, and the air inlet 3 is opened on the outer edge of the negative pressure chamber 6. In this way, when performing scraping with negative pressure, the skin can only contact the outer convex ring 4 of the air inlet 3. This can prevent the skin from being sucked into the air inlet 3, avoid difficulty in moving the scraping device on the skin, and prevent scratching the skin. It can also further facilitate the outer convex ring 4 to scrape away the essential oil on the skin.

[0018] Example 2, as Figure 3 As shown, in this embodiment, the air inlet 3 is located in the middle of the negative pressure chamber, and an outer groove 8 is provided at the outer end of the air inlet 3. The outer convex ring 4 is detachably installed in the outer groove 8. The outer convex ring 4 and the outer groove 8 are tightly fitted with an interference fit, which facilitates the disassembly, replacement and cleaning of the outer convex ring 4.

[0019] In this embodiment, the inner diameter of the outer convex ring 4 is less than or equal to the diameter of the air inlet 3. The inner diameter of the outer convex ring 4 can be less than or equal to the diameter of the air inlet, as long as it facilitates negative pressure air intake while preventing essential oil from entering. In addition, the width between the inner and outer walls of the outer convex ring 4 and the height of the outer convex ring 4 protruding into the negative pressure chamber 6 can also be reasonably set according to actual needs.

[0020] In this embodiment, the outer convex ring 4 is an elastic plastic ring, which can further reduce the risk of skin injury when the scraping device moves on the skin.

[0021] In this embodiment, a pressure relief hole 9 is provided inside the air inlet 3 to facilitate pressure relief of the air inlet 3. An installation connection hole 7 is also provided inside the negative pressure chamber 6. The installation connection hole 7 is connected to the air inlet 3 inside the negative pressure chamber 6. The installation connection hole 7 facilitates the connection of the internal connecting shell or filter components, etc., by screws. Therefore, the structure is reasonably designed.

[0022] Based on the concept of this utility model, there may be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A negative pressure protection structure for a gua sha device, comprising a gua sha base, wherein the gua sha base is provided with a negative pressure nozzle for use with a negative pressure air pump, characterized in that: The scraping base has a negative pressure chamber, and the negative pressure chamber has an air inlet that communicates with the negative pressure air nozzle. The air inlet is equipped with a blocking and protection component.

2. The negative pressure protection structure of a scraping device according to claim 1, characterized in that: The blocking and protection assembly includes an outer protruding ring located at the outer end of the air inlet and an inner protruding post located inside the air inlet.

3. The negative pressure protection structure of a scraping device according to claim 2, characterized in that: An air inlet hole is provided between the air inlet and the negative pressure nozzle, and the inner protrusion is coaxially connected to the air inlet hole.

4. The negative pressure protection structure of a scraping device according to claim 1, characterized in that: The air inlet is offset from the center of the negative pressure chamber.

5. The negative pressure protection structure of a scraping device according to claim 2, characterized in that: The air inlet is located in the middle of the negative pressure chamber, and an outer groove is provided at the outer end of the air inlet. The outer convex ring is detachably installed in the outer groove.

6. The negative pressure protection structure of a scraping device according to claim 5, characterized in that: The inner diameter of the outer convex ring is less than or equal to the diameter of the air inlet.

7. The negative pressure protection structure of a scraping device according to claim 6, characterized in that: The outer convex ring is an elastic plastic ring.

8. The negative pressure protection structure of a scraping device according to claim 5, characterized in that: A pressure relief hole is provided on the inner side of the air inlet, and an installation connection hole is also provided in the negative pressure chamber.

Images