Low-temperature plasma airflow type generator

Abstract

The invention discloses a low-temperature plasma airflow type generator, and relates to the technical field of human skin beautifying. The device comprises an insulating machine shell, first connecting plates are fixedly connected to the two sides of the end of the insulating machine shell, mounting bases are rotationally connected to the first connecting plates, rotating shafts are fixedly connected to the mounting bases, the rotating shafts are rotationally connected to the first connecting plates, worm wheels are fixedly connected to the ends of the rotating shafts, and worms are connected to the outer sides of the worm wheels in an engaged mode; a mounting groove is formed in the mounting seat, a base is detachably mounted in the mounting groove, and a plasma generating head is mounted on the base; and a fixing mechanism is mounted at the top of the mounting groove and is used for realizing detachable mounting of the mounting seat and the base. By arranging the detachable base and the mounting base, different types of plasma generating heads can be conveniently and rapidly replaced, a user can flexibly replace the generating heads according to specific requirements, multiple kinds of equipment do not need to be additionally purchased, and the universality and economical efficiency of the equipment are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of human skin beauty technology, specifically a low-temperature plasma gas flow generator. Background Technology

[0002] Plasma is typically generated between two electrodes, where the gas between the electrodes is ionized by breakdown. Plasma is an ionized gas that is electrically neutral and contains a large number of electrons, ions, and free radicals. Due to its unique physical and chemical properties, plasma can be used to modify object surfaces, clean surfaces, graft new materials, and sterilize surfaces. Recently, it has been widely used in the fields of beauty and biomedicine.

[0003] An existing patent (publication number: CN105879217A) discloses an inductive plasma pen, which is used for disinfection, sterilization, beauty treatment, and treatment of skin tissue infections on the human body surface. However, in actual use, different types of plasma generating heads are often required depending on the different usage needs. For example, some generating heads are used for sterilization and disinfection, some are used to promote cell regeneration, and some are used to improve skin problems. However, this device is not convenient to replace different types of plasma generating heads, which has great limitations. Therefore, this invention proposes a low-temperature plasma airflow generator. Summary of the Invention

[0004] The purpose of this invention is to provide a low-temperature plasma flow generator with a detachable design, which facilitates the replacement of different types of plasma connectors to meet different usage requirements. Furthermore, the conductive posts and conductive grooves effectively solve the problem of unstable electrical contact caused by the detachable design.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature plasma gas flow generator, comprising an insulating housing, a first connecting plate fixedly connected to both ends of the insulating housing, a mounting base rotatably connected to the first connecting plate, a rotating shaft fixedly connected to the mounting base, the rotating shaft rotatably connected to the first connecting plate, a worm gear fixedly connected to the end of the rotating shaft, and a worm engaging with the outer side of the worm gear; The mounting base has an internal mounting groove, in which a base is detachably mounted, and a plasma generator head is mounted on the base. A fixing mechanism is installed on the top of the mounting slot to enable detachable installation of the mounting base and the base.

[0006] Furthermore, a second connecting plate is installed on the side wall of the mounting base facing the insulating housing, and the rotating shaft on the mounting base is fixed on the second connecting plate. The second connecting plate is rotatably connected to the first connecting plate through the rotating shaft.

[0007] Furthermore, a protective box is provided on the side wall of the first connecting plate, one end of the rotating shaft fixing worm gear passes through the first connecting plate, and a bearing is provided between the rotating shaft and the first connecting plate.

[0008] Furthermore, the worm gear is located inside the protective box, the bottom end of the worm is rotatably connected to the protective box through a bearing, and the top end of the worm is fixedly installed with a first knob through the protective box.

[0009] Furthermore, a magnetic ring is provided on the side of the base facing the mounting seat, the magnetic ring is located outside the conductive post, and a magnetic plate that attracts the magnetic ring is provided on the inner wall of the mounting groove.

[0010] Furthermore, the conductive post is configured as a cylindrical, prismatic, or strip-shaped plate, and is made of conductive metal. The interior of the mounting groove is provided with a conductive groove that is compatible with the conductive post. A conductive sheet is provided in the conductive groove, and the conductive post is inserted into the conductive groove and contacts the conductive sheet to form a closed circuit.

[0011] Furthermore, the conductive pillar is made of tin-phosphor bronze alloy or brass.

[0012] Furthermore, the fixing mechanism includes a gear rotatably connected to the top of the mounting base, with racks meshing on both sides of the gear, and a limit block fixedly connected to the bottom end of the rack, the limit block being elongated. A second knob is fixedly connected to the top of the gear. The second knob is installed through the mounting base and is rotatably connected to the mounting base through a damping bearing. A guide bar is fixedly connected to the outer side of the rack, and a guide groove adapted to the guide bar is provided on the inner wall of the mounting groove.

[0013] Furthermore, a connecting block is fixedly connected to the top of the base, and a limiting groove is opened at both ends of the connecting block, the limiting groove being adapted to the limiting block.

[0014] Furthermore, the insulating housing is made of medical-grade plastic material. A handle is installed at the bottom of the insulating housing, and a control switch is provided on the handle. A plasma power supply is installed inside the insulating housing. The end of the plasma power supply away from the mounting base is powered by an external plug. The plasma power supply is electrically connected to the conductive plate in the conductive groove through a wire.

[0015] This invention has at least the following beneficial effects: 1. This invention, by setting a detachable base and mounting seat, facilitates the quick replacement of different types of plasma generating heads. Users can flexibly change the generating head according to specific needs (such as disinfection, cell regeneration, skin repair, etc.) without having to purchase multiple additional devices, significantly improving the versatility and economy of the equipment.

[0016] 2. In this invention, the base and the mounting groove are fixed by magnetic ring and magnetic plate adsorption. Combined with the precise docking of conductive column and conductive groove, it provides additional fixing force and ensures stable and reliable electrical contact. This effectively solves the problem of unstable contact caused by detachable design. In addition, the magnetic adsorption design simplifies the installation process, reduces the risk of loosening due to vibration or external force, and extends the service life of the equipment.

[0017] 3. This invention adopts a worm gear drive deflection adjustment mechanism, which can realize flexible angle adjustment of the plasma generator head within the range of 0°-180°, meet the treatment needs of different parts (face, arms, back, etc.) and complex skin problems, and the self-locking property of the worm gear ensures stability and reliability after angle adjustment, avoiding angle deviation caused by external force or vibration, and improving the convenience and safety of operation.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure from a first perspective in Embodiment 1 of the present invention; Figure 2 This is a two-dimensional schematic diagram of the overall structure from a second perspective in Embodiment 1 of the present invention; Figure 3 This is a three-dimensional schematic diagram of the worm gear structure of the present invention; Figure 4 This is a three-dimensional schematic diagram of the base structure of the present invention; Figure 5 This is a three-dimensional schematic diagram of the mounting base structure of the present invention; Figure 6 This is a three-dimensional schematic diagram of the fixing mechanism of the present invention; Figure 7 This is a three-dimensional schematic diagram of the overall structure in Embodiment 2 of the present invention.

[0020] Figure label: 1. Insulating housing; 2. First connecting plate; 3. Mounting base; 4. Rotating shaft; 5. Worm gear; 6. Worm; 7. Mounting groove; 8. Conductive post; 9. Fixing mechanism; 91. Gear; 92. Rack; 93. Limiting block; 94. Second knob; 95. Guide bar; 96. Connecting block; 97. Limiting groove; 10. Base; 11. Plasma generator head; 12. Second connecting plate; 13. Protective box; 14. First knob; 15. Magnetic ring; 16. Conductive groove; 17. Handle; 18. Control switch; 19. Wire. Detailed Implementation

[0021] The technical solutions of 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 of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0022] Please see Figures 1-7 The present invention provides a technical solution: a low-temperature plasma gas flow generator, including an insulating housing 1, a first connecting plate 2 fixedly connected to both ends of the insulating housing 1, a mounting base 3 rotatably connected to the first connecting plate 2, a rotating shaft 4 fixedly connected to the mounting base 3, the rotating shaft 4 rotatably connected to the first connecting plate 2, a worm gear 5 fixedly connected to the end of the rotating shaft 4, and a worm 6 meshing with the outer side of the worm gear 5. The mounting base 3 has an internal mounting groove 7, in which a base 10 is detachably mounted, and a plasma generator head 11 is mounted on the base 10. The top of the mounting slot 7 is equipped with a fixing mechanism 9, which is used to enable the detachable installation of the mounting base 3 and the base 10.

[0023] In this embodiment, a second connecting plate 12 is mounted on the side wall of the mounting base 3 facing the insulating housing 1. A rotating shaft 4 on the mounting base 3 is fixed to the second connecting plate 12. The second connecting plate 12 is rotatably connected to the first connecting plate 2 via the rotating shaft 4. The second connecting plate 12 serves as an additional support structure, enhancing the connection strength between the mounting base 3 and the first connecting plate 2. Compared to a direct connection via the rotating shaft 4 alone, adding the second connecting plate 12 provides more stable support and reduces the risk of failure due to loosening or breakage.

[0024] Regarding the technical solution of this embodiment, a protective box 13 is provided on the side wall of the first connecting plate 2. One end of the rotating shaft 4 that fixes the worm gear 5 passes through the first connecting plate 2, and a bearing is provided between the rotating shaft 4 and the first connecting plate 2. The protective box 13 can effectively prevent dust, impurities, and liquids from entering the area of ​​the worm gear 5 and the rotating shaft 4. During use, especially in environments such as skin care, various liquids or particles may splash. The protective box 13 can protect the worm gear 5 and the rotating shaft 4 from the corrosion of these contaminants, extending their service life. Furthermore, the protective box 13 can prevent users or surrounding objects from accidentally contacting the rotating worm gear 5 and the rotating shaft 4, avoiding potential safety accidents. This design improves the safety of the equipment, especially in scenarios with high safety requirements such as medical aesthetics.

[0025] Regarding the technical solution of this embodiment, the worm gear 5 is located inside the protective box 13, and the bottom end of the worm 6 is rotatably connected to the protective box 13 through a bearing. The top end of the worm 6 passes through the protective box 13 and is fixedly installed with a first knob 14. Rotating the first knob 14 drives the worm 6 to rotate, and the worm gear 5 rotates through the worm 6, which causes the rotating shaft 4 to drive the mounting base 3 to deflect. This facilitates the angle adjustment of the plasma generator head 11 installed on the mounting base 3. In the process of skin beauty or disinfection, different skin parts may require different angles for treatment. Through this angle adjustment mechanism, the plasma generator head 11 can flexibly adjust the angle to adapt to various different usage scenarios, such as the treatment of the face, neck, arms, back, etc. For example, when it is necessary to operate on the skin of the back, if a traditional straight-cylinder plasma generator is used, the user needs to manually bend the wrist to adjust the plasma generator head 11 to the appropriate angle. However, using this method for a long time will cause the user's wrist to ache and make the operation inconvenient.

[0026] It should be noted that the self-locking property of the worm gear 5 and worm 6 transmission enables the plasma generator head 11 to maintain the required angle stably after adjustment, and it will not be easily changed by external force or vibration. This improves the stability and reliability of the equipment during use.

[0027] Regarding the technical solution of this embodiment, a magnetic ring 15 is provided on the side of the base 10 facing the mounting base 3. The magnetic ring 15 is located outside the conductive post 8, and a magnetic plate that attracts the magnetic ring 15 is provided on the inner wall of the mounting groove 7. The magnetic attraction between the magnetic ring 15 and the magnetic plate can provide additional fixing force to ensure that the base 10 is firmly fixed in the mounting groove 7. This magnetic fixing method can prevent the base 10 from loosening or shifting due to vibration or external force during use, thereby improving the stability and reliability of the equipment. Furthermore, the magnetic attraction between the magnetic ring 15 and the magnetic plate can assist in the positioning of the base 10 in the mounting groove 7, ensuring that the conductive post 8 and the conductive sheet in the conductive groove 16 make correct contact. During installation, the magnetic attraction can guide the conductive post 8 to accurately snap into the conductive groove 16, forming a stable electrical contact, thereby improving the reliability of the conductivity.

[0028] In this embodiment, the conductive post 8 is cylindrical, prismatic, or strip-shaped, and made of conductive metal. The mounting groove 7 has a conductive groove 16 adapted to the conductive post 8, and a conductive sheet is placed within the conductive groove 16. The conductive post 8 is inserted into the conductive groove 16 and contacts the conductive sheet, forming a closed circuit. The tight contact between the conductive post 8 and the conductive sheet ensures a stable electrical connection. By inserting the conductive post 8 into the conductive groove 16, contact resistance is reduced, the efficiency of power transmission is improved, and the plasma generator head 11 can operate stably. Tight electrical contact reduces arcing and sparking caused by poor contact, thereby improving the safety and reliability of the equipment. The conductive post 8 can be cylindrical, prismatic, or strip-shaped, and this diversity can be selected according to different design requirements and space constraints. Different shapes can provide different contact areas and mechanical stability, thereby optimizing conductivity. It should be noted that this embodiment does not impose specific limitations, and the choice can be made according to the actual situation.

[0029] Furthermore, the conductive post 8 is made of tin-phosphor bronze alloy or brass. Both tin-phosphor bronze alloy and brass have good electrical conductivity, which can ensure that electrical energy is efficiently transmitted to the plasma generator head 11. This helps to improve the operating efficiency of the equipment, reduce energy loss, and ensure that the plasma generator head 11 can work stably.

[0030] Regarding the technical solution of this embodiment, the fixing mechanism 9 includes a gear 91 rotatably connected to the top of the mounting base 3, and racks 92 meshing with both sides of the gear 91. A limiting block 93 is fixedly connected to the bottom end of the rack 92, and the limiting block 93 is set in the shape of a strip. A second knob 94 is fixedly connected to the top of the gear 91. The second knob 94 is arranged through the mounting base 3 and is rotatably connected to the mounting base 3 through a damping bearing. A guide bar 95 is fixedly connected to the outer side of the rack 92, and a guide groove adapted to the guide bar 95 is provided on the inner wall of the mounting groove 7. A connecting block 96 is fixedly connected to the top of the base 10. Both ends of the connecting block 96 are provided with limit grooves 97, which are adapted to the limit block 93. Specifically, when the plasma generator head needs to be installed or disassembled, the base 10 is inserted into the mounting groove 7, and the conductive post 8 is inserted into the conductive groove 16 to form a closed passage. Then, the second knob 94 is turned to drive the gear 91 to rotate. When the gear 91 rotates, it will drive the racks 92 on both sides to move in opposite directions at the same time (moving inwards at the same time during installation and outwards at the same time during disassembly). If installation is performed at this time, the two racks 92 will drive the limit blocks 93 on both sides to move towards the connecting block 96 at the same time and be inserted into the limit groove 97, thereby achieving fixation. Since there is damping between the second knob 94 and the mounting base 3, the gear 91 will not easily rotate again after fixation, which can ensure the stability during fixation. The design of this fixing mechanism 9 makes the installation process very simple. The user only needs to insert the base 10 into the mounting groove 7 and ensure that the conductive post 8 is inserted into the conductive groove 16 to form a closed circuit. Then, turn the second knob 94 to complete the fixing. This design greatly simplifies the installation process and reduces installation time and labor intensity. Similarly, the disassembly process is also very simple. The user only needs to turn the second knob 94 in the opposite direction. The rack 92 drives the limiting block 93 to move out of the limiting groove 97, and the base 10 can be easily removed from the mounting groove 7 to replace and install other types of plasma generator heads 11.

[0031] It should be further explained that the plasma generator head 11 in this embodiment is specifically composed of a high-voltage electrode covered with insulating material. A grounding electrode is provided inside the insulating housing 1. When human skin comes into contact with the plasma generator head 11, if a sufficiently high voltage is applied, the gas molecules between the electrodes will be polarized by the electric field, breaking down the local air between the human skin and the plasma generator head 11 to form air plasma.

[0032] In the field of cosmetic procedures, plasma generates a large amount of reactive oxygen species (such as superoxide anions, hydrogen peroxide, and hydroxyl radicals) and reactive nitrogen species (such as nitric oxide) during the discharge process. These active ingredients have strong oxidizing properties and can destroy the cell structure of microorganisms such as bacteria, fungi, and viruses, thereby achieving a sterilization and disinfection effect. The reactive oxygen and nitrogen species in plasma can activate fibroblasts, causing them to produce more growth factors and collagen, thus improving skin elasticity and reducing wrinkles. Furthermore, the active ingredients generated by plasma can penetrate deep into the skin, directly acting on skin cells to promote cell renewal and repair. This helps improve various skin problems, such as pigmentation and acne scars. Plasma can also promote blood circulation and metabolism, making the skin healthier and more radiant.

[0033] However, different plasma generator heads 11 are required for different beauty procedures. For example, some generator heads can be used for sterilization and disinfection, some can be used to promote cell regeneration, and some can be used to improve skin problems. Different skin areas (such as face, neck, body, etc.) and different skin problems (such as acne, scars, wrinkles, etc.) require different treatment methods and intensities. By changing different plasma generator heads 11, treatment can be better targeted at specific areas and problems. For example, for relatively small skin areas, smaller plasma generator heads 11 can be selected to avoid exposing non-target areas to the substances generated by the plasma. Therefore, this embodiment adopts a detachable design for the plasma connector to meet different usage needs. Furthermore, the conductive posts 8 and conductive grooves 16 can effectively solve the problem of unstable electrical contact caused by the detachable design.

[0034] Regarding the technical solution of this embodiment, the insulating housing 1 is made of medical-grade plastic material. A handle 17 is installed at the bottom of the insulating housing 1, and a control switch 18 is provided on the handle 17. The control switch 18 facilitates the control of discharge. A plasma power supply is installed inside the insulating housing 1. The end of the plasma power supply away from the mounting base 3 is powered by an external plug. The plasma power supply is electrically connected to the conductive sheet in the conductive groove 16 through a wire 19. The medical-grade plastic material has good insulation properties, which can effectively prevent current leakage, protect the user's safety during operation, and avoid the risk of electric shock caused by equipment leakage.

[0035] Example 2: The fundamental difference between this embodiment and Embodiment 1 is that: Figure 7 As shown, the plasma generator head 11 used in this embodiment is configured as a disc and is mainly used for disinfection.

[0036] The operating principle and process of this invention are as follows: In actual use, firstly, select an appropriate plasma generator head 11, and then insert the base 10 into the mounting groove 7. At this time, under the mutual attraction between the magnetic ring 15 and the magnetic plate, the conductive post 8 is inserted into the conductive groove 16 and contacts the conductive sheet to form a closed circuit, ensuring that the plasma generator head 11 can work stably. Tight electrical contact can reduce arcs and sparks caused by poor contact. Then, rotate the second knob 94 to drive the gear 91 to rotate. When the gear 91 rotates, it will drive the racks 92 on both sides to move inward at the same time, and drive the limiting blocks 93 on both sides to move towards the connecting block 96 and be inserted into the limiting groove 97, thereby achieving fixation. Since there is damping between the second knob 94 and the mounting base 3, the gear 91 will not easily rotate again after fixation, which can ensure the stability during fixation. In this way, it is convenient to replace different types of plasma generator heads 11 according to actual needs, improving the practicality of the device. When the angle of the plasma generator head 11 needs to be adjusted, first turn the first knob 14 to drive the worm gear 6 to rotate, and the worm gear 6 drives the worm wheel 5 to rotate, which causes the shaft 4 to drive the mounting base 3 to deflect. This facilitates the angle adjustment of the plasma generator head 11 mounted on the mounting base 3. In skin beauty or disinfection processes, different skin areas may require different angles for treatment. Through this angle adjustment mechanism, the plasma generator head 11 can flexibly adjust its angle to adapt to various usage scenarios. Furthermore, the self-locking property of the worm wheel 5 and worm gear 6 transmission ensures that the plasma generator head 11 can stably maintain the angle after adjustment, and will not easily change due to external forces or vibrations, further improving the stability and reliability of the equipment during use. After adjustment, the user holds the handle 17 and turns on the plasma power supply through the control switch 18. When the human skin comes into contact with the plasma generator head 11, the local air between the human skin and the plasma generator head 11 is broken down to form air plasma.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. When an element is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another element, it may be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A low-temperature plasma gas flow generator, comprising an insulating housing (1), characterized in that, The insulating housing (1) has a first connecting plate (2) fixedly connected to both ends. The first connecting plate (2) has a mounting base (3) rotatably connected to it. The mounting base (3) has a rotating shaft (4) fixedly connected to it. The rotating shaft (4) is rotatably connected to the first connecting plate (2). The end of the rotating shaft (4) is fixedly connected to a worm gear (5). The outer side of the worm gear (5) is meshed with a worm (6). The mounting base (3) has an internal mounting groove (7), and a base (10) is detachably installed in the mounting groove (7). A plasma generator head (11) is installed on the base (10). The top of the mounting slot (7) is equipped with a fixing mechanism (9) for detachable installation of the mounting base (3) and the base (10).

2. The low-temperature plasma gas flow generator according to claim 1, characterized in that: The mounting base (3) has a second connecting plate (12) mounted on the side wall facing the insulating housing (1). The rotating shaft (4) on the mounting base (3) is fixed on the second connecting plate (12). The second connecting plate (12) is rotatably connected to the first connecting plate (2) through the rotating shaft (4).

3. A low-temperature plasma gas flow generator according to claim 2, characterized in that: A protective box (13) is provided on the side wall of the first connecting plate (2), and one end of the rotating shaft (4) fixing the worm gear (5) passes through the first connecting plate (2), and a bearing is provided between the rotating shaft (4) and the first connecting plate (2).

4. A low-temperature plasma gas flow generator according to claim 3, characterized in that: The worm gear (5) is located inside the protective box (13), the bottom end of the worm (6) is rotatably connected to the protective box (13) through a bearing, and the top end of the worm (6) is fixedly installed with a first knob (14) through the protective box (13).

5. A low-temperature plasma gas flow generator according to claim 4, characterized in that: A magnetic ring (15) is provided on the side of the base (10) facing the mounting base (3). The magnetic ring (15) is located outside the conductive post (8), and a magnetic plate that attracts the magnetic ring (15) is provided on the inner wall of the mounting groove (7).

6. A low-temperature plasma gas flow generator according to claim 5, characterized in that: The conductive post (8) is configured as a cylindrical, prismatic or strip plate. The conductive post (8) is made of conductive metal. The inside of the mounting groove (7) is provided with a conductive groove (16) that is compatible with the conductive post (8). A conductive sheet is provided in the conductive groove (16). The conductive post (8) is inserted into the conductive groove (16) and contacts the conductive sheet to form a closed circuit.

7. A low-temperature plasma gas flow generator according to claim 6, characterized in that: The conductive post (8) is made of tin-phosphor bronze alloy or brass.

8. A low-temperature plasma gas flow generator according to claim 6, characterized in that: The fixing mechanism (9) includes a gear (91) rotatably connected to the top of the mounting base (3), and racks (92) meshing with both sides of the gear (91). A limit block (93) is fixedly connected to the bottom end of the rack (92), and the limit block (93) is set in the shape of a long strip. The top of the gear (91) is fixedly connected to a second knob (94), which is arranged through the mounting base (3) and is rotatably connected to the mounting base (3) through a damping bearing; A guide bar (95) is fixedly connected to the outer side of the rack (92), and a guide groove adapted to the guide bar (95) is provided on the inner wall of the mounting groove (7).

9. A low-temperature plasma gas flow generator according to claim 8, characterized in that: The top of the base (10) is fixedly connected to a connecting block (96), and both ends of the connecting block (96) are provided with limiting grooves (97), which are adapted to the limiting block (93).

10. A low-temperature plasma gas flow generator according to claim 9, characterized in that: The insulating housing (1) is made of medical plastic material. A handle (17) is installed at the bottom of the insulating housing (1). A control switch (18) is provided on the handle (17). A plasma power supply is installed inside the insulating housing (1). The end of the plasma power supply away from the mounting base (3) is powered by an external plug. The plasma power supply is electrically connected to the conductive sheet in the conductive groove (16) through a wire (19).

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