Thermal spray equipment

Abstract

The present invention relates to the technical field of beauty instruments, and discloses a thermal spray device, comprising a liquid storage device, a liquid delivery device, and a spray device. The liquid storage device is provided with a retractable self-locking structure, which is pressed against a first liquid outlet of the liquid storage device; the liquid delivery device is connected to the liquid storage device and communicates with the first liquid outlet, and a liftable push rod is provided at a position of the liquid delivery device corresponding to the first liquid outlet; the spray device is connected to the liquid outlet end of the liquid delivery device, and a ceramic atomizing plate and a liquid guide structure are provided in the spray device. The liquid guide structure has a fitting portion and an extension portion, the fitting portion is fitted on the working surface of the ceramic atomizing plate, the extension portion extends into the liquid delivery device, and a through hole is provided on the fitting portion. This makes the thermal spray device more portable, can spray a mist with temperature and finer particles, and can also be applied to other liquids besides water.

Description

Technical Field

[0001] The present invention relates to the technical field of beauty instruments, and in particular to a thermal spraying device. Background Art

[0002] There are some atomization devices on the market. The technical principle is to etch nano-pores on the round stainless steel sheet, and then bind a ring-mounted piezoelectric ceramic sheet to the outer ring of the stainless steel sheet. Under the high-frequency vibration of the ceramic sheet, the water film on the stainless steel sheet is granulated and sprayed out to achieve room temperature spraying; the technical principle of another type of thermal spraying equipment is to use the self-heating of a high-power heating device to form a high-temperature surface. When water contacts the surface of the heating element, it quickly vaporizes under high temperature conditions to form steam. The water's own volume expansion during the vaporization process is used to spray the steam out of the pipe.

[0003] The water mist sprayed by existing room-temperature atomization equipment is at room temperature, while thermal atomization equipment is not portable because it requires high-power heating devices for heating. In addition, the principle that the heat of high-temperature devices causes the liquid to vaporize is not applicable to essence liquids other than water, and the materials used are greatly restricted. In addition, the particles produced by this type of sprayer are large, which is not conducive to skin absorption. Summary of the Invention

[0004] The main purpose of the present invention is to provide a thermal spraying device, aiming to solve the technical problem that the thermal spraying device requires a high-power heating device to heat in order to form a thermal spray.

[0005] To achieve the above object, the present invention provides a thermal spraying device, comprising:

[0006] A liquid storage device, wherein a retractable self-locking structure is provided in the liquid storage device, the self-locking structure is pressed against the first liquid outlet of the liquid storage device, and the self-locking structure is used to close the first liquid outlet;

[0007] a liquid delivery device, the liquid delivery device being connected to the liquid storage device and in communication with the first liquid outlet, the liquid delivery device being provided with a liftable ejector rod at a position corresponding to the first liquid outlet, the ejector rod being used to lift the self-locking structure to open the first liquid outlet;

[0008] A spray device is connected to the liquid outlet end of the liquid delivery device. A ceramic atomizing plate and a liquid guide structure are provided in the spray device. The liquid guide structure has a fitting portion and an extension portion. The fitting portion is fitted on the working surface of the ceramic atomizing plate, and the extension portion extends into the liquid delivery device. A through hole is provided on the fitting portion.

[0009] Optionally, in one embodiment, the thermal spraying device further comprises a main body, the liquid storage device is detachably disposed on the top of the main body, and the liquid delivery device is disposed inside the main body;

[0010] And / or, the spray device is detachably embedded in the main body.

[0011] Optionally, in one embodiment, the liquid delivery device further comprises a cannula and a guide tube, the cannula being connected to the first liquid outlet of the liquid storage device, the guide tube being disposed at the top of the cannula and communicating with the cannula, the ejector rod being disposed in the cannula, the ejector rod comprising a head section and a tail section, the diameter of the tail section being equal to the inner diameter of the cannula, and the diameter of the head section being smaller than the inner diameter of the cannula;

[0012] When the push rod is extended, the tail section corresponds to the position of the liquid inlet of the guide tube, closing the liquid inlet;

[0013] When the push rod is retracted, the first section corresponds to the position of the liquid inlet of the guide tube, and the liquid inlet is opened.

[0014] Optionally, in one embodiment, the liquid delivery device further includes a solenoid valve mechanism, and the push rod is disposed on the solenoid valve mechanism.

[0015] Optionally, in one embodiment, the top of the push rod is in the shape of an I-character.

[0016] Optionally, in one embodiment, a protrusion is provided at the bottom of the liquid storage device, and a slot is provided on the protrusion. The thermal spraying equipment also includes a locking structure, and the locking structure is arranged at the top of the main body. The locking structure includes a pressing block, a hook and a spring. The hook is fixed on the pressing block and is engaged in the slot. The pressing block is embedded in the side wall of the main body, and the spring is arranged between the hook and the main body, or the spring is arranged between the pressing block and the main body.

[0017] Optionally, in one embodiment, the ceramic atomizing plate is arranged at an angle.

[0018] Optionally, in one embodiment, the angle between the working surface of the ceramic atomizing plate and the vertical plane is 10°-25°.

[0019] Optionally, in one embodiment, the ceramic atomizing sheet includes a first electrode and a second electrode, wherein the first electrode is disposed at an edge of one surface of the ceramic atomizing sheet, and the second electrode is disposed at a central area of ​​another surface of the ceramic atomizing sheet;

[0020] The spray device also includes a conductive sheet, a conductive elastic needle, a spring, a conductive seat and a fixed seat. The ceramic atomizing sheet and the conductive sheet are fixed in the fixed seat. The conductive sheet is fitted on the first electrode. The conductive sheet is provided with a lug, which protrudes from the ceramic atomizing sheet. The conductive elastic needle passes through the fixed seat and is held against the conductive sheet. The conductive seat is movably arranged in the fixed seat. The spring is pressed between the conductive seat and the second electrode. The axis of the spring is in the same straight line as the axis of the ceramic atomizing sheet. The conductive ends of the conductive elastic needle and the conductive seat protrude from the fixed seat.

[0021] Optionally, in one embodiment, the conductive sheet is a ring-shaped structure, and the conductive sheet is provided with an opening, the fitting portion is provided in the hollow of the conductive sheet, and the extending portion extends from the opening.

[0022] Optionally, in one embodiment, the spray device further includes a buffer pad, which is arranged between the ceramic atomizing plate and the fixing seat;

[0023] The buffer pad is an annular structure, and the spring passes through the hollow of the buffer pad and abuts against the second electrode.

[0024] Optionally, in one embodiment, a protrusion is provided on the outer side wall of the buffer pad, the position of the protrusion corresponds to the position of the opening, the second liquid outlet of the guide tube of the liquid delivery device is fitted on the protrusion, the protrusion covers part of the second liquid outlet, and the extension portion fits the protrusion and extends into the guide tube.

[0025] Optionally, in one embodiment, the fixing seat is provided with a trumpet-shaped spray nozzle, a small opening of the spray nozzle covers the through hole, and a large opening of the spray nozzle faces outside the thermal spraying device.

[0026] Optionally, in one embodiment, the diameter of the through hole is 1.5 mm-2.5 mm.

[0027] In the technical solution provided by the present invention, the raw materials for use are pre-stored in the liquid storage device, which can be liquids such as water or essential oils. Through the cooperation of the ejector rod and the self-locking structure, the first liquid outlet of the liquid storage device is opened to supply liquid only when the thermal spray device is turned on, which can avoid the waste and loss of liquid raw materials caused by liquid leakage. The liquid can also be quantitatively delivered by controlling the timing of the lift of the ejector rod. The liquid is then guided to the working surface of the ceramic atomizer by the liquid guide structure extending into the liquid delivery device, forming a liquid film at the through hole. The high-frequency resonance of the ceramic atomizer breaks up the liquid water molecular structure to produce a spray. No high-power heating device is required for heating or adding any chemical reagents. The formed atomized particles are finer and can be better absorbed by the skin. Since the high-frequency resonance of the ceramic atomizer generates a certain amount of heat, the formed spray has a certain amount of heat. Therefore, compared with the method of heating by a high-power heating device, the ceramic atomizer can greatly save energy and can also be applied to other essence liquids other than water. Since the ceramic atomizer is a small component and occupies a small space, the atomization device can be made smaller and more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] Figure 1 Schematic diagram of the structure of an embodiment of the thermal spraying device of the present invention;

[0030] Figure 2 Schematic diagram of the cross-sectional structure of the thermal spraying device of the present invention;

[0031] Figure 3 Schematic diagram of the structure of an embodiment of the liquid guiding structure of the present invention;

[0032] Figure 4 A schematic diagram of the top structure of an embodiment of the present invention;

[0033] Figure 5 Schematic diagram of the structure of an embodiment of the liquid storage device of the present invention;

[0034] Figure 6 Schematic diagram of the structure of an embodiment of the liquid delivery device of the present invention;

[0035] Figure 7 Schematic diagram of the structure of an embodiment of the spray device of the present invention;

[0036] Figure 8 A schematic diagram of the explosion structure of an embodiment of the spray device of the present invention;

[0037] Figure 9 Schematic diagram of the structure of another embodiment of the liquid guiding structure of the present invention.

[0038] Among them, 1. thermal spraying equipment; 2. liquid storage device; 21. liquid storage box; 211. box body; 212. box cover; 213. fixed convex ring; 214. first liquid outlet; 22. self-locking structure; 221. guide rod fixing bracket; 222. guide rod; 223. elastic structure; 224. first soft rubber plug; 225. second soft rubber plug; 23. sealing ring; 24. convex edge; 241. slot; 3. liquid delivery device; 31. ejector rod; 311. head section; 312. tail section; 32. solenoid valve mechanism; 33. sleeve; 34. guide tube; 4. Spray device; 41. Ceramic atomizing plate; 42. Liquid guiding structure; 421. Fitting portion; 422. Extension portion; 423. Through hole; 43. Conductive plate; 431. Lug; 44. Conductive spring pin; 45. Conductive seat; 46. Fixed seat; 461. First fixed seat; 462. Second fixed seat; 463. Spray port; 47. Buffer pad; 471. Bump; 48. Spring; 5. Main body; 51. Guide groove; 52. Press switch; 53. Spray hole; 6. Locking structure; 61. Press block; 62. Hook; 63. Guide column. DETAILED DESCRIPTION

[0039] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element, or one or more elements can be interposed therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more elements can be interposed therebetween. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly specifying the number of technical features indicated. Therefore, unless otherwise specified, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; "plurality" means two or more. The term "comprising" and any variations thereof are intended to be non-exclusive, and one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0040] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0041] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] like Figures 1 to 3 As shown, an embodiment of the present invention discloses a thermal spraying device 1, which includes a liquid storage device 2, a liquid delivery device 3, a spray device 4 and a main body 5. A retractable self-locking structure 22 is provided in the liquid storage device 2, and the self-locking structure 22 is pressed against the first liquid outlet 214 of the liquid storage device 2, and the self-locking structure 22 is used to close the first liquid outlet 214; the liquid delivery device 3 is connected to the liquid storage device 2 and communicates with the first liquid outlet 214, and the position of the liquid delivery device 3 corresponding to the first liquid outlet 214 is provided with a liftable push rod 31, and the push rod 31 is used to lift the self-locking structure 22 to open the first liquid outlet 214; the spray device 4 is connected to the liquid outlet end of the liquid delivery device 3, and the spray A ceramic atomizing sheet 41 and a liquid-conducting structure 42 are provided in the device 4. The liquid-conducting structure 42 has a fitting portion 421 and an extension portion 422. The fitting portion 421 is fitted on the working surface of the ceramic atomizing sheet 41, and the extension portion 422 extends into the liquid delivery device 3. A through hole 423 is provided on the fitting portion 421. A power supply device is provided in the main body 5. The power supply device is electrically connected to the electronic components in the thermal spraying device 1 for power supply. The main body 5 is also provided with a press switch 52 and a spray hole 53. The liquid storage device 2 is detachably provided on the top of the main body 5, the liquid delivery device 3 is provided in the main body 5, and the spray device 4 is detachably embedded in the main body 5 and electrically connected to the power supply interface of the power supply device. The diameter of the through hole 423 is 1.5 mm to 2.5 mm, which can better form a liquid film, thereby making the formation of the spray more uniform and continuous.

[0043] In this embodiment, the raw materials used are pre-stored in the liquid storage device 2, which can be liquids such as water or essential oils. Through the cooperation of the push rod 31 and the self-locking structure 22, the first liquid outlet 214 of the liquid storage device 2 will be opened to supply liquid only when the thermal spraying equipment 1 is turned on, which can avoid the waste and loss of liquid raw materials caused by liquid leakage, and the liquid can be quantitatively delivered by controlling the timing of the lifting and lowering of the push rod 31. Then, the liquid is guided to the working surface of the ceramic atomizing piece 41 through the liquid guide structure 42 extending into the liquid delivery device 3, and a liquid film is formed at the through hole 423. Then, the high-frequency resonance of the ceramic atomizing piece 41 is used to break up the liquid water molecular structure to produce a spray. , no high-power heating device is required for heating or adding any chemical reagents, and the formed atomized particles are smaller, which can make the skin absorb better, and because the high-frequency resonance of the ceramic atomizer 41 will generate a certain amount of heat, heating is achieved while forming the spray, so that the formed spray can have a certain amount of heat, and the spray can have a temperature of 20℃-25℃. Therefore, compared with the heating method through high-power heating devices, the ceramic atomizer 41 can greatly save energy and can also be applied to other essence liquids besides water; since the ceramic atomizer 41 is a small component and occupies a small space, the atomization equipment can be made smaller and more convenient to carry. Secondly, the liquid storage device 2 is set to be detachable, so that the liquid storage device 2 can be replaced as a separate individual, so that the user can replace the atomized liquid raw material at will according to different needs, and because the liquid storage device 2 has a self-locking structure 22, when the thermal spraying equipment 1 is not working, the self-locking structure 22 will close the liquid outlet of the liquid storage device 2. Therefore, the liquid storage device 2 can be replaced at will without leakage. After the thermal spraying equipment 1 has been used for a long time or after the liquid storage device 2 storing different liquids is replaced, the liquid guide structure 42 needs to be cleaned or replaced to avoid bacterial growth or liquid mixing. Therefore, the spray device 4 is also fixed in a detachable manner, which is convenient for installation and disassembly, thereby facilitating the cleaning or replacement of the liquid guide structure 42.

[0044] like Figure 4 and Figure 5As shown, in one embodiment, a protrusion 24 is provided at the bottom of the liquid storage device 2, and a slot 241 is provided on the protrusion 24. The thermal spraying equipment 1 also includes a locking structure 6, and the locking structure 6 is arranged at the top of the main body 5. The locking structure 6 includes a pressing block 61, a hook 62 and a spring 48. The hook 62 is fixed on the pressing block 61 and is engaged in the slot 241. The pressing block 61 is embedded in the side wall of the main body 5. The spring 48 is arranged between the hook 62 and the main body 5, or the spring 48 is arranged between the pressing block 61 and the main body 5. A locking structure 6 is provided at the top of the main body 5, and then a ridge 24 with a card slot 241 is provided at the bottom of the liquid storage device 2. During installation, the ridge 24 of the liquid storage device 2 is put on the locking structure 6, and the hook 62 of the locking structure 6 is locked in the card slot 241 to form a fixation. During disassembly, the user's finger presses the pressing block 61 to disengage the hook 62 from the card slot 241, thereby removing the liquid storage device 2. Fixing the liquid storage device 2 in this way is convenient for the installation and disassembly of the liquid storage device 2, and the locking structure 6 is automatically reset after being pressed by the spring 48.

[0045] Specifically, two locking structures 6 are provided on the main body 5, and the two locking structures 6 are centrally symmetrically arranged. The user can remove the liquid storage structure by pressing two fingers one in front and one behind at the same time. While making it convenient for the user to disassemble the liquid storage structure, the liquid storage structure is more stable after being fixed and the force is more evenly distributed.

[0046] Furthermore, the hook 62 is provided with a guide post 63, which is arranged along the direction of pressing. The main body 5 is provided with a corresponding guide slot 51, into which the guide post 63 is inserted. The spring 48 is sleeved on the guide post 63 and is located between the hook 62 and the main body 5. The cooperation between the guide post 63 and the guide slot 51 ensures the movement trajectory of the hook 62, ensuring that it can completely disengage the slot 241 after pressing, and preventing the hook 62 from being deformed or broken due to shaking in other directions during pressing.

[0047] like Figure 2 and Figure 5As shown, in one embodiment, the liquid storage device 2 includes a liquid storage box 21, a soft rubber plug, a guide rod 222, a guide rod 222 fixing frame 221 and an elastic structure 223. The top surface of the liquid storage box 21 is provided with a fixing convex ring 213, and the guide rod 222 fixing frame 221 is fixed to the fixing convex ring 213 by snapping. The guide rod 222 fixing frame 221 is provided with a limiting hole, and the position of the limiting hole corresponds to the hollow of the fixing convex ring 213. The guide rod 222 is movably set in the limiting position and passes through the elastic structure 223 to be connected with the soft rubber plug. The elastic structure 223 is pressed between the guide rod 222 fixing frame 221 and the soft rubber plug; a first liquid outlet 214 is provided at the bottom of the liquid storage box 21, and the position of the first liquid outlet 214 corresponds to the position of the soft rubber plug. In the initial state, the soft rubber plug covers the first liquid outlet 214 to close the first liquid outlet 214. The soft rubber plug, the guide rod 222 , the guide rod 222 fixing frame 221 and the elastic structure 223 constitute the self-locking structure 22 , and the elastic structure 223 is mostly formed by a spring 48 .

[0048] Specifically, the liquid storage tank 21 includes a tank body 211 and a tank cover 212. The tank cover 212 is secured to the tank body 211 from the top opening via a sealing ring 23. The fixing protrusion 213 is provided on the tank cover 212. The soft rubber plug includes a first soft rubber plug 224 and a second soft rubber plug 225. The first soft rubber plug 224 is secured to the end of the guide rod 222, and the second soft rubber plug 225 is sleeved onto the first soft rubber plug 224. The lower half of the second soft rubber plug 225 is truncated. The bottom surface of the tank body 211 is concave toward the first liquid outlet.

[0049] In this embodiment, the first soft rubber plug 224 is pressed downward by the elastic force of the spring 48, so that the first soft rubber plug 224 presses the second soft rubber plug 225 downward and tightly against the first liquid outlet 214, thereby closing the first liquid outlet 214, thereby realizing the self-locking function of the liquid storage device 2. When opened for use, the push rod 31 will overcome the elastic force of the spring 48 to push up the second soft rubber plug 225 to open the first liquid outlet 214 for liquid supply. The lower half of the second soft rubber plug 225 is configured in a frustum shape, which can better close the first liquid outlet 214 on the one hand, and facilitate the push rod 31 to push it up on the other hand. The bottom surface of the box body 211 is concave at the first liquid outlet so that the liquid can converge toward the first liquid outlet 214, and there will be no residue after use.

[0050] Furthermore, a mark is set on the box cover 212 at the position corresponding to the self-locking structure 22, so as to facilitate the alignment of the self-locking structure 22 with the first liquid outlet 214 during installation. For example, a groove can be dug at the corresponding position on the box cover 212, or a mark can be affixed.

[0051] like Figure 2 and Figure 6 As shown, in one embodiment, the liquid delivery device 3 includes a push rod 31, a solenoid valve mechanism 32, a sleeve 33 and a guide tube 34, the solenoid valve mechanism 32 is fixed in the main body 5, the push rod 31 is arranged on the solenoid valve mechanism 32, the sleeve 33 is connected with the first liquid outlet 214 of the liquid storage device 2, the guide tube 34 is arranged at the top of the sleeve 33 and communicates with the sleeve 33, the push rod 31 is arranged in the sleeve 33, and the push rod 31 has The head section 311 and the tail section 312, the diameter of the tail section 312 is equal to the inner diameter of the sleeve 33, and the diameter of the head section 311 is smaller than the inner diameter of the sleeve 33; when the push rod 31 is extended, the tail section 312 corresponds to the position of the liquid inlet of the guide tube 34, closing the liquid inlet; when the push rod 31 is retracted, the head section corresponds to the position of the liquid inlet of the guide tube 34, opening the liquid inlet; the guide tube 34 is set at an angle so that the liquid can be transported by its own gravity.

[0052] In this embodiment, the lifting and lowering of the push rod 31 is controlled by the solenoid valve mechanism 32, so that quantitative output of liquid can be achieved. When the push rod 31 lifts the self-locking structure 22, the first liquid outlet 214 is opened and the liquid inlet of the guide tube 34 is closed. The liquid will flow from the first liquid outlet 214 to the head section 311 of the push rod 31 in the sleeve 33 for temporary storage. Then, when the push rod 31 retracts, the first liquid outlet 214 is closed and the liquid inlet of the guide tube 34 is opened, and the liquid can flow into the guide tube 34 for liquid transmission, thereby achieving quantitative delivery of the liquid.

[0053] Furthermore, the top of the push rod 31 is in the shape of an "I". Since the thermal atomization equipment 1 can be made small and portable, and the amount of liquid required to form the spray is not large, the first liquid outlet 214 will be made relatively small. Due to the tension of the liquid, it will be relatively difficult for the liquid to flow out. Therefore, when the push rod 31 retracts, the "I"-shaped structure will have a certain traction force on the liquid, draw out the liquid, and help the liquid flow out.

[0054] like Figure 2 、 Figure 7 and Figure 8As shown, in one embodiment, the ceramic atomizing sheet 41 includes a first electrode and a second electrode, the first electrode is arranged at the edge of one surface of the ceramic atomizing sheet 41, and the second electrode is arranged in the central area of ​​the other surface of the ceramic atomizing sheet 41; the spray device 4 also includes a conductive sheet 43, a conductive elastic needle 44, a spring 48, a conductive seat 45, a fixing seat 46 and a buffer pad 47, the ceramic atomizing sheet 41, the buffer pad 47 and the conductive sheet 43 are fixed in the fixing seat 46, the conductive sheet 43 is fitted on the first electrode, and serves as the electrode adapter plate lead-out electrode of the ceramic atomizing sheet 41, the conductive sheet 43 is provided with a lug 431, the lug 431 protrudes from the ceramic atomizing sheet 41, and the conductive elastic needle 44 passes through the fixing seat 46 to resist On the conductive sheet 43, the buffer pad 47 is arranged between the ceramic atomizing sheet 41 and the fixed seat 46, and is located on the second electrode side. The buffer pad 47 is a ring structure, and the conductive seat 45 is movably arranged in the fixed seat 46. The conductive seat 45 is a thumbtack-shaped structure, the big head part is used to contact the spring 48, and the thin part is connected to the external power supply interface. The spring 48 is pressed between the conductive seat 45 and the second electrode. The spring 48 passes through the hollow of the buffer pad 47 and is supported on the second electrode. The conductive seat 45 can move in the extension and contraction direction of the spring 48. The axis of the spring 48 is in the same straight line as the axis of the ceramic atomizing sheet 41. The conductive ends of the conductive spring pin 44 and the conductive seat 45 protrude from the fixed seat 46. Among them, the liquid-conducting structure 42 can be a non-woven fabric or absorbent cotton, and the liquid is soaked into the non-woven fabric or absorbent cotton, and then transmitted to the working surface of the ceramic atomizing plate 41, forming a liquid film in the through hole 423; the conductive plate 43 is a non-closed annular structure with an opening, and the fitting part 421 is embedded in the hollow of the conductive plate 43, and the extension part 422 extends from the opening.

[0055] In this embodiment, the first electrode of the ceramic atomizing plate 41 is led out by the conductive plate 43 and the conductive elastic pin 44, and the second electrode of the ceramic atomizing plate 41 is led out by the spring 48 and the conductive seat 45. This non-fixed electrical connection method is used as the connection circuit of the ceramic atomizing plate 41 to replace the wire connection, so that the circuit structure is more stable. During installation, the elastic force ensures the stable connection of the circuit and the stability of the electrical connection during disassembly and installation, so that the circuit will not be affected after disassembly, so that the spray device 4 can be disassembled and assembled at will; if the wire connection is used, the wire will easily break after disassembly, or the circuit connection will be unstable. The solution of this embodiment can well avoid this situation. Then, the conductive sheet 43 that is fitted to the ceramic atomizer sheet 41 is set as an annular structure, and the lug 431 is used to contact the conductive elastic pin 44 to achieve electrical connection. On the one hand, the area of ​​the conductive sheet 43 can be greatly reduced, and the heat dissipation effect of the conductive sheet 43 on the ceramic atomizer sheet 41 can be reduced, ensuring that the spray formed by the ceramic atomizer sheet 41 has a certain temperature. On the other hand, it can also play a role in limiting and fixing the liquid guide structure 42. In addition, since the center of the ceramic atomizer sheet 41 is the main working position that requires high-frequency vibration, the spring 48 is used to press it onto the ceramic atomizer sheet 41, which can well avoid the central working position and achieve electrical connection at the edge, thereby avoiding affecting the normal operation of the ceramic atomizer sheet 41. Moreover, the spring 48 is elastic and can avoid affecting the high-frequency vibration of the ceramic atomizer sheet 41. Similarly, a silicone cushion 47 is provided between the ceramic atomizer sheet 41 and the fixing seat 46, and is connected with a soft material to avoid affecting the high-frequency vibration of the ceramic atomizer sheet 41.

[0056] The outer wall of the buffer pad 47 is provided with a protrusion 471. The buffer pad 47 and the protrusion 471 form an integral structure and are made of silicone. The protrusion 471 is positioned corresponding to the opening. The second liquid outlet of the guide tube 34 of the liquid delivery device 3 is fitted on the protrusion 471, and the protrusion 471 partially covers the second liquid outlet. The extension portion 422 fits the protrusion 471 and extends into the guide tube 34. Because the protrusion 471 is made of silicone, the guide tube 34 can be pressed tightly against the protrusion 471. On the one hand, the protrusion 471 can limit the guide tube 34, and on the other hand, it can seal the contact surface between the guide tube 34 and the protrusion 471, preventing liquid from leaking from the contact surface. Then, the protrusion 471 covers part of the second liquid outlet, allowing a small amount of liquid to accumulate and buffer at the second liquid outlet, preventing the liquid flow rate of the guide tube 34 from exceeding the absorption rate of the liquid guide structure 42, which would cause liquid leakage.

[0057] Among them, the fixing seat 46 is divided into a first fixing seat 461 and a second fixing seat 462. The buffer pad 47, the ceramic atomizing sheet 41 and the conductive sheet 43 are stacked and arranged between the first fixing seat 461 and the second fixing seat 462. The first fixing seat 461 and the second fixing seat 462 are pressed and fixed, and the fixation is simple. The first fixing seat 461 and the second fixing seat 462 are connected and fixed by a snap connection, which is convenient for installation and disassembly, thereby facilitating the cleaning or replacement of the liquid guide structure 42; the conductive spring needle 44 and the conductive seat 45 pass through the first fixing seat 461 along the installation direction of the spray device 4 Extending from the same surface of the first fixing seat 461, the lead-out structures of the two electrodes of the ceramic atomizing plate 41 are arranged on the same surface. After the spray device 4 is installed, the conductive elastic needle 44 and the conductive seat 45 can be pressed against the preset power supply interface in the main body 5, which can simplify the arrangement and design of the circuit; the second fixing seat 462 is provided with a spray port 463, and the spray port 463 corresponds to the through hole 423, and is used to form a spray. The spray port 463 is set to a trumpet shape, which is convenient for the formation of the spray spray, increases the mist output, and avoids the spray hitting the inner wall of the spray port 463 and condensing back into large droplets.

[0058] Furthermore, the surfaces of the first fixing seat 461 and the second fixing seat 462 used to compress the buffer pad 47, the ceramic atomizing sheet 41 and the conductive sheet 43 are set to inclined surfaces, so that the buffer pad 47, the ceramic atomizing sheet 41, the liquid guide structure 42 and the conductive sheet 43 can also be correspondingly inclined. If the ceramic atomizing sheet 41 is set vertically, since gravity is parallel to the working surface of the ceramic atomizing sheet 41, the liquid will fall down and it will be difficult to hang on the working surface of the ceramic atomizing sheet 41, and it will be difficult to form a liquid film in the through hole 423. By setting the ceramic atomizing sheet 41 to be inclined and making the working surface of the ceramic atomizing sheet 41 form a certain angle with the direction of gravity, some of the influence of gravity can be overcome, making it easier for droplets to hang on the working surface of the ceramic atomizing sheet 41, and better forming a liquid film for atomization. Specifically, setting the angle between the working surface of the ceramic atomizing sheet 41 and the vertical surface to 10°-25° can better form a liquid film for atomization.

[0059] like Figure 3 As shown, in one embodiment, the liquid-conducting structure 42 is made of non-woven fabric or absorbent cotton, one through hole 423 is provided, the diameter of the through hole 423 is 1.8mm-2.5mm, and the thickness of the liquid-conducting structure 42 is 0.3mm-0.4mm, thereby ensuring better formation of the spray, a larger amount of spray formed, and smaller particles, and the shape of the liquid-conducting structure 42 can only be cut by a die, and a laser cannot be used to avoid burning the liquid-conducting structure 42 at the through hole 423, thereby destroying the liquid-conducting performance of the liquid-conducting structure 42 and affecting the formation of the liquid film at the through hole 423.

[0060] like Figure 9 As shown, in another embodiment, the liquid-conducting structure 42 is also made of non-woven fabric or absorbent cotton, and three through holes 423 are arranged in a circular array. The diameter of each through hole 423 is 1.5 mm, and the thickness of the liquid-conducting structure 42 is 0.3 mm-0.4 mm. Spray is generated from multiple points, and the resulting spray volume is larger and the efficiency is higher.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions described in the above embodiments, or to make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermal spraying device, characterized in that: The thermal spraying equipment comprises: A liquid storage device, wherein a retractable self-locking structure is provided in the liquid storage device, the self-locking structure is pressed against the first liquid outlet of the liquid storage device, and the self-locking structure is used to close the first liquid outlet; a liquid delivery device, the liquid delivery device being connected to the liquid storage device and in communication with the first liquid outlet, the liquid delivery device being provided with a liftable ejector rod at a position corresponding to the first liquid outlet, the ejector rod being used to lift the self-locking structure to open the first liquid outlet, wherein the top of the ejector rod is in the shape of an "I"; A spray device connected to the liquid outlet of the liquid delivery device, wherein the spray device is provided with a ceramic atomizing plate and a liquid guide structure, wherein the liquid guide structure comprises a fitting portion and an extension portion, wherein the fitting portion is fitted on the working surface of the ceramic atomizing plate, and the extension portion extends into the liquid delivery device, and wherein the fitting portion is provided with a through hole; The ceramic atomizing plate includes a first electrode and a second electrode, wherein the first electrode is disposed at an edge of one surface of the ceramic atomizing plate, and the second electrode is disposed at a central area of ​​the other surface of the ceramic atomizing plate; The spray device also includes a conductive sheet, a conductive elastic needle, a spring, a conductive seat and a fixed seat. The ceramic atomizing sheet and the conductive sheet are fixed in the fixed seat. The conductive sheet is fitted on the first electrode. The conductive sheet is provided with a lug, which protrudes from the ceramic atomizing sheet. The conductive elastic needle passes through the fixed seat and abuts against the conductive sheet. The conductive seat is movably arranged in the fixed seat. The spring is pressed between the conductive seat and the second electrode. The axis of the spring is in the same straight line as the axis of the ceramic atomizing sheet. The conductive ends of the conductive elastic needle and the conductive seat protrude from the fixed seat. The spray device further includes a buffer pad, which is arranged between the ceramic atomizing plate and the fixing seat; The buffer pad is an annular structure, and the spring passes through the hollow of the buffer pad and abuts against the second electrode.

2. The thermal spraying device according to claim 1, characterized in that The thermal spraying device further comprises a main body, the liquid storage device is detachably arranged on the top of the main body, and the liquid delivery device is arranged in the main body; And / or, the spray device is detachably embedded in the main body.

3. The thermal spraying device according to claim 1, characterized in that The liquid delivery device further includes a sleeve and a guide tube, the sleeve being connected to the first liquid outlet of the liquid storage device, the guide tube being disposed at the top of the sleeve and communicating with the sleeve, the ejector rod being disposed in the sleeve, the ejector rod having a head section and a tail section, the tail section having a diameter equal to the inner diameter of the sleeve, and the head section having a diameter smaller than the inner diameter of the sleeve; When the push rod is extended, the tail section corresponds to the position of the liquid inlet of the guide tube, closing the liquid inlet; When the push rod is retracted, the head section corresponds to the position of the liquid inlet of the guide tube, and the liquid inlet is opened.

4. The thermal spraying device according to claim 3, characterized in that The liquid delivery device further comprises a solenoid valve mechanism, and the push rod is arranged on the solenoid valve mechanism.

5. The thermal spraying device according to claim 2, characterized in that A convex edge is provided at the bottom of the liquid storage device, and a slot is provided on the convex edge. The thermal spraying equipment also includes a locking structure, and the locking structure is arranged at the top of the main body. The locking structure includes a pressing block, a hook and a spring. The hook is fixed on the pressing block and is engaged in the slot. The pressing block is embedded in the side wall of the main body, and the spring is arranged between the hook and the main body, or the spring is arranged between the pressing block and the main body.

6. The thermal spraying device according to claim 1, characterized in that The ceramic atomizing sheet is arranged obliquely.

7. The thermal spraying device according to claim 6, characterized in that The included angle between the working surface of the ceramic atomizing plate and the vertical surface is 10°-25°.

8. The thermal spraying equipment according to claim 1, characterized in that The conductive sheet is a ring-shaped structure, and is provided with an opening. The fitting portion is arranged in the hollow of the conductive sheet, and the extending portion extends out from the opening.

9. The thermal spraying device according to claim 8, characterized in that A protrusion is provided on the outer side wall of the buffer pad, the position of the protrusion corresponds to the position of the opening, the second liquid outlet of the guide tube of the liquid delivery device is fitted on the protrusion, the protrusion partially covers the second liquid outlet, and the extension part fits the protrusion and extends into the guide tube.

10. The thermal spraying equipment according to claim 1, characterized in that The fixing seat is provided with a trumpet-shaped spray port, a small opening of the spray port covers the through hole, and a large opening of the spray port faces outside the thermal spraying device.

11. The thermal spraying device according to claim 1, characterized in that The diameter of the through hole is 1.5 mm to 2.5 mm.

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