A pressure-relieving scraping device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU XINAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-03
AI Technical Summary
Existing electronic scraping devices require a solenoid valve to control the release of air after scraping, which is costly, affects the internal wiring layout, and is inconvenient to assemble.
The vent of the tee fitting is separated from the sealing part by manually pressing the elastic element, which enables manual venting, reduces costs and simplifies assembly.
It achieves low-cost and stable manual venting, avoids the use of solenoid valves, and is simple to assemble and reliably sealed.
Smart Images
Figure CN224441676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traditional Chinese medicine physiotherapy devices, and in particular to a pressure-relieving negative pressure scraping device. Background Technology
[0002] In existing technologies, Gua Sha is a commonly used method in Traditional Chinese Medicine (TCM) for treating diseases. It mainly involves scraping the skin with a specific tool, and through the conduction or reflex action of the meridians, the Sha marks are transmitted into the body, stimulating and adjusting disordered physiological functions. Currently, some electronic Gua Sha devices have appeared on the market. They use negative pressure suction to make the device adhere to the skin and achieve the Gua Sha effect by moving the device. For example, the utility model patent with application number "201920689416.7" requires deflating the device after Gua Sha to make it easier to remove rather than forcibly pulling it off. However, this utility model patent uses an electromagnetic valve for control, which is relatively expensive and also affects the layout of the internal wiring. Summary of the Invention
[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a pressure-relieving negative pressure scraping device. It uses manual pressing to overcome the restoring force of the elastic element, so that one side of the tee fitting can be vented. The cost is relatively low and the assembly is also relatively convenient.
[0004] This utility model discloses a pressure-relief negative pressure scraping device, including a handheld part and a scraping head. The bottom of the scraping head is recessed to form a scraping groove. It also includes a negative pressure device for inhalation. A three-way fitting is provided on the scraping head. The first port of the three-way fitting is connected to the output end of the negative pressure device, and the second port of the three-way fitting is connected to the scraping groove. The device is characterized by: a vent pipe slidably disposed on the scraping head. One end of the vent pipe is connected to the third port of the three-way fitting, and the other end is a vent. A sealing element is provided on one side of the scraping head corresponding to the vent. The device also includes an elastic reset element for driving the vent pipe to slide so that the vent is in contact with the sealing element to achieve a seal, and a pressing element for driving the vent pipe to slide so that the vent is disengaged from the sealing element. The pressing element is partially exposed on the scraping head.
[0005] A further feature of this invention is that the scraping head is guided by a sliding frame, the vent pipe is mounted on the sliding frame and slides synchronously with it, the vent pipe, the pressing component and the sliding frame are integrally mounted or injection molded together, the elastic reset component is a spring, the sliding frame is provided with a mounting shaft for the spring to be mounted, one end of the spring abuts against the sliding frame, and the other end abuts against the scraping head.
[0006] A further feature of this invention is that a massage ball is rotatably provided at the bottom of the scraping head, the massage ball protruding from the surface of the scraping head and surrounding the opening of the scraping groove.
[0007] A further feature of this invention is that a heating element for heating the massage rollers is provided on the scraping head corresponding to the massage rollers.
[0008] A further feature of this invention is that a filter head is provided inside the scraping groove, and the filter head is provided with several air filtering holes, with the second port of the tee fitting acting on the filter head.
[0009] Using the above technical solution, during use, the negative pressure device draws in air, reducing the pressure inside the scraping groove and generating an adsorption force. Furthermore, by holding the handpiece, the scraping head can be moved across the skin to achieve the scraping effect. After scraping, the manual pressing component is pressed, causing the elastic reset component to deform elastically and further disengage the vent from the sealing component, thus releasing the air pressure inside the scraping groove and achieving manual venting. This method is lower in cost than a solenoid valve, does not require circuit control for venting, is relatively stable during venting and sealing, and is easy to assemble. When the pressing component loses external pressure, the elastic reset component can drive the vent pipe to reset. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0011] Figure 2 for Figure 1 Another perspective structural diagram;
[0012] Figure 3 This is a diagram showing the mating of the massage roller and heating element of this utility model;
[0013] Figure 4 This is a schematic diagram of the internal structure of the scraping head of this utility model;
[0014] Figure 5 for Figure 4 Schematic diagram of the removed sealing component;
[0015] Figure 6 for Figure 4 Enlarged view of part a;
[0016] Figure 7 for Figure 5 Enlarged view of part b. Detailed Implementation
[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:
[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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.
[0019] This utility model discloses a pressure-relief negative pressure scraping device, including a handheld part 1 and a scraping head 2. The bottom of the scraping head 2 is recessed to form a scraping groove 21. It also includes a negative pressure device 3 for inhalation (the negative pressure device 3 can be an air pump, which can be purchased directly from the market and will not be described in detail here). The scraping head 2 is provided with a three-way fitting (the three-way fitting is not shown in the figure, but can be purchased directly from the market; the specific connection can be through a flexible hose, which will not be described in detail here). The first port of the three-way fitting is connected to the output end of the negative pressure device 3, and the second port of the three-way fitting is connected to... In this embodiment of the invention, the scraping groove 21 is connected to a vent pipe 4 that is slidably disposed on the scraping head 2. One end of the vent pipe 4 is connected to the third port of the tee fitting, and the other end is a vent 41. A sealing element 5 is provided on one side of the scraping head 2 corresponding to the vent 41 (the sealing element 5 is preferably a rubber pad, but it can also be a latex pad or a soft plastic pad). The invention also includes an elastic reset element 6 that drives the vent pipe 4 to slide so that the vent 41 fits with the sealing element 5 to achieve a seal, and a pressing element 7 that drives the vent pipe 4 to slide so that the vent 41 disengages from the sealing element 5. The pressing element 7 is partially exposed on the scraping head 2.
[0020] Using the above scheme, during use, the negative pressure device 3 draws in air, thereby reducing the pressure inside the scraping groove 21 and generating an adsorption force. Furthermore, by holding the handpiece 1, the scraping head 2 can be moved on the skin to achieve the scraping effect. After scraping, the manual driving pressing part 7 is pressed, thereby causing the elastic reset part 6 to elastically deform and further driving the vent 41 to disengage from the sealing part 5, thereby releasing the air pressure inside the scraping groove 21, thus achieving the effect of manual venting. Moreover, its cost is lower than that of a solenoid valve, and venting does not require circuit control. Venting and sealing are relatively stable, and assembly is also relatively convenient. When the pressing part 7 loses external pressure, the elastic reset part 6 can drive the vent pipe 4 to reset. The preferred power supply is battery power, but an external power supply can also be used. The specific circuit can be controlled by a PCB circuit board and a button switch.
[0021] The scraping head 2 is guided by a sliding frame 8, and the venting pipe 4 is located on the sliding frame 8 and slides synchronously with it. The venting pipe 4, the pressing component 7 and the sliding frame 8 are integrally set or injection molded into one piece. By setting the venting pipe 4 and the pressing component 7 on the sliding frame 8 to form a whole, it is more convenient to assemble and more stable when sliding. The elastic reset component 6 is a spring. The sliding frame 8 is provided with a mounting shaft 9 for installing the spring. One end of the spring abuts against the sliding frame 8, and the other end abuts against the scraping head 2. The spring is installed through the mounting shaft 9. The technology is relatively mature and has better stability. Specifically, the end of the spring that abuts against the scraping head 2 can abut against the blocking plate. The blocking plate is fixedly set on the scraping head and located at the end of the mounting shaft 9.
[0022] The bottom of the scraping head 2 is rotatably equipped with a massage ball 10. The massage ball 10 protrudes from the surface of the scraping head 2 and is wrapped around the opening of the scraping groove 21. By protruding from the surface of the scraping head 2 and being wrapped around the opening of the scraping groove 21, the massage ball 10 can come into contact with the skin first during scraping, which can increase the effect of sha.
[0023] The scraping head 2 is provided with a heating element 20 for heating the massage roller 10 at the position corresponding to the massage roller 10 (the heating element 20 is preferably a heating plate, and the heating element and negative pressure device 3 can be controlled by a circuit board and a control switch, and the power supply is preferably provided by a battery on the handpiece, or it can be powered by an external power cord). When the heated massage roller 10 comes into contact with the skin, it can increase heat therapy, thereby accelerating blood circulation and increasing the effect of scraping.
[0024] A filter head 30 is provided inside the scraping groove 21. The filter head 30 is provided with a plurality of air filter holes 40. The second port of the tee fitting acts on the filter head 30. The air filter holes 40 on the filter head 30 can achieve a filtering effect, thereby preventing larger debris from being sucked into the negative pressure device 3.
Claims
1. A pressure-relief negative pressure scraping device, comprising a handheld part (1) and a scraping head (2), wherein the bottom of the scraping head (2) is recessed to form a scraping groove (21), and further comprising a negative pressure device (3) for inhalation, wherein a three-way fitting is provided on the scraping head (2), the first port of the three-way fitting is connected to the output end of the negative pressure device (3), and the second port of the three-way fitting is connected to the scraping groove (21), characterized in that: It also includes a vent pipe (4) that is slidably disposed on the scraping head (2). One end of the vent pipe (4) is connected to the third port of the three-way fitting, and the other end is a vent (41). A sealing member (5) is provided on one side of the scraping head (2) corresponding to the vent (41). It also includes an elastic reset member (6) that drives the vent pipe (4) to slide so that the vent (41) fits with the sealing member (5) to achieve a seal, and a pressing member (7) that drives the vent pipe (4) to slide so that the vent (41) disengages from the sealing member (5). The pressing member (7) is partially exposed on the scraping head (2).
2. A negative pressure gua sha device according to claim 1, wherein: The scraping head (2) is guided by a sliding frame (8), and the vent pipe (4) is located on the sliding frame (8) and slides synchronously with it. The vent pipe (4), the pressing part (7) and the sliding frame (8) are integrally set or injection molded into one piece. The elastic reset part (6) is a spring. The sliding frame (8) is provided with a mounting shaft (9) for the spring to be installed. One end of the spring abuts against the sliding frame (8), and the other end abuts against the scraping head (2).
3. A negative pressure gua sha device according to claim 1 or 2, wherein: The bottom of the scraping head (2) is provided with a massage ball (10), which protrudes from the surface of the scraping head (2) and is arranged around the groove of the scraping groove (21).
4. A negative pressure gua sha device according to claim 3, wherein: The scraping head (2) is provided with a heating element (20) for heating the massage ball (10) at the position corresponding to the massage ball (10).
5. A pressure-relief negative pressure gua sha according to claim 1 or 2, wherein: A filter head (30) is provided inside the scraping groove (21), and a number of air filter holes (40) are provided on the filter head (30). The second port of the three-way pipe acts on the filter head (30).