Disposable consumable structure of oxygen injection instrument and oxygen injection instrument

Abstract

The invention relates to a disposable consumable structure of an oxygen injection instrument and the oxygen injection instrument, and belongs to the technical field of oxygen injection instruments, the consumable structure is composed of an atomizing nozzle and a liquid storage bottle, the structural design is optimized, the manufacturing cost is reduced, the consumable structure can be replaced as a disposable article, and the problems of blockage and residual pollution are solved. And the quick release design is optimized, so that the replacement process is convenient to operate, and the use experience is optimized. By designing the oxygen injection instrument matched with a disposable consumable use mode, the atomization effect is guaranteed, the problem of nozzle blockage is solved, and the skin infection risk caused by residual pollution is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of oxygen injection instruments, and particularly relates to a disposable consumables structure of an oxygen injection instrument and the oxygen injection instrument. Background Art

[0002] Skincare products cleanse, nourish, beautify, and modify the skin. They typically come in the form of aqueous solutions, lotions, or serums. Traditionally, skincare products are applied by dropping a drop into the hands and then applying to the face. However, this method of application is difficult to ensure uniformity, and some areas of application may be missing, which can affect the effectiveness of the product.

[0003] Furthermore, new technology has developed a method of using an atomizing sprayer to atomize skincare products and then spray them on the face, which can significantly improve the problem of uneven manual application. An atomizing sprayer is a conversion device that converts liquids into aerosol particles. Its principle is generally centrifugal atomization using a built-in vortex generator, which can produce aerosol particles with a smaller diameter and more complete atomization, but it is more expensive and requires frequent cleaning and maintenance. Especially when the skincare products are in the form of relatively viscous lotions or essences, the nozzle and internal atomization flow path of the atomizing device are extremely prone to clogging. Even if the clogged nozzle is unblocked, the skincare products remaining inside will breed bacteria and fungi if exposed to the air for a long time, causing the aerosol particles sprayed by the atomizing device to be mixed with pollutants.

[0004] In summary, there is an urgent need for a new disposable consumable structure of an oxygen injection instrument and an oxygen injection instrument that can avoid blockage and contamination. Summary of the Invention

[0005] The present invention aims to provide a disposable consumable structure of an oxygen injector and a supporting device thereof, so as to solve the problems of easy blockage of the nozzle of the existing atomizing sprayer and easy residual contamination of the flow channel.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A disposable consumable structure of an oxygen injection instrument, comprising an atomizing nozzle and a liquid storage bottle; the atomizing nozzle comprises a nozzle body, a nozzle, and a liquid channel and a gas channel arranged in the nozzle body; a mixing chamber connected to the nozzle opening is formed in the nozzle; the output port of the liquid channel and the output port of the gas channel are respectively connected to the mixing chamber; the input port of the gas channel is provided with a sealing connector for quick-detach connection to the oxygen injection instrument's air supply mechanism; the input port of the liquid channel is connected to the liquid outlet of the liquid storage bottle; the liquid storage bottle is also provided with a sealing pusher for quick-detach connection to the oxygen injection instrument's feeding mechanism.

[0007] Preferably, the nozzle includes a shell and a mounting seat, the nozzle mouth is opened in the shell, the end surface of the mounting seat facing the nozzle mouth and the inner wall of the shell are enclosed to form the mixing chamber, the mounting seat is formed with a protrusion at the position corresponding to the nozzle mouth, a gap is reserved between the tip of the protrusion and the nozzle mouth and the gap is connected to the mixing chamber, the liquid channel passes through the protrusion and forms an output port at its tip, and the gas channel passes through the mounting seat and is connected to the mixing chamber.

[0008] Preferably, the liquid channel output port is coaxially aligned with the nozzle opening, the tip of the protrusion is a conical structure, the nozzle opening is a conical groove recessed inward from the inner surface of the shell, and the ratio of the minimum distance between the tip of the protrusion and the nozzle opening to the maximum distance between the two is in the range of 1:1.5 to 1:2.5.

[0009] Preferably, the sealing connector includes a silicone plug-in block embedded in the end of the nozzle body, and the silicone plug-in block is provided with an air inlet connected to the gas channel. The diameter of the air inlet is smaller than the diameter of the oxygen injection instrument air supply mechanism connector so that the two are interference fit.

[0010] Preferably, the liquid storage bottle has a bottomless structure, and the sealed pushing member includes a pushing piston slidably arranged in the liquid storage bottle and an embedded connecting block slidably arranged on the bottom of the liquid storage bottle and synchronized with the pushing piston, and the embedded connecting block is used for plugging and matching the oxygen injection instrument feeding mechanism.

[0011] Another object of the present invention is to provide an oxygen injection instrument to match the above-mentioned disposable consumable structure.

[0012] The purpose of the present invention can be achieved through the following technical solutions: An oxygen injection instrument comprises a body and an assembly slot provided on the body, wherein the assembly slot is used for quick disassembly and assembly of the disposable consumable structure of the oxygen injection instrument described in any one of the above solutions.

[0013] Preferably, a control terminal and an air pump and an electric screw electrically connected to the control terminal are provided in the body; an air supply plug is provided in the assembly groove, and the air supply plug is connected to the air pump through a silicone hose; the assembly groove is also connected to the inner cavity of the body where the electric screw is installed, and the moving end of the electric screw reciprocates in the assembly groove.

[0014] Preferably, the inner side wall of the assembly slot is further provided with a pressure-sensitive switch, which is electrically connected to the control terminal. When the disposable consumable structure is loaded into the assembly slot, the pressure-sensitive switch presses and activates the circuit of the control terminal.

[0015] Preferably, the side wall of the assembly groove is further provided with an ejection key, and the ejection key is used to assist the disposable consumable structure in ejecting.

[0016] Preferably, the machine body is matched with a machine cover, and the machine cover is buckled and matched with the machine body to cover the notch of the assembly slot.

[0017] The beneficial effects of the present invention are: Aiming at the problem that the nozzle of the atomizing sprayer is easily clogged, the present invention adopts the design of a disposable consumable structure, and completely solves the problems of clogging and residual pollution by replacing the disposable consumable structure.

[0018] The design of the disposable consumable structure can be proposed because the disposable consumable structure of the present invention adopts the impact atomization principle structure to reduce the manufacturing difficulty and manufacturing cost, so that the atomizing nozzle that originally had a precise structure but extremely high cost can be mass-produced at a low price and become a consumable, which not only ensures the atomization effect, but also avoids the risk of skin infection caused by residual contamination.

[0019] Furthermore, to complement this disposable consumable structure, a matching oxygen injector has been designed, enabling quick assembly and disassembly with the disposable consumable structure, simple operation, and a stable connection. This ensures that the high-pressure gas and skincare liquid are separated and sealed before entering the disposable consumable structure, allowing for mixing and atomization only within the disposable consumable structure, thus preventing contamination at the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic cross-sectional view of the machine body of the present invention; Figure 2 A diagram showing the structure of disposable consumables and the installation coordination of the oxygen injection instrument of the present invention; Figure 3 This is an exploded view of the disposable consumable structure of the present invention; Figure 4 It is an exploded view of the body of the present invention.

[0022] Description of main symbols In the picture: 1. Atomizing nozzle; 11. Nozzle body; 12. Nozzle; 121. Shell; 122. Mounting seat; 13. Liquid channel; 14. Gas channel; 2. Mixing chamber; 3. Sealing pusher; 31. Pushing mechanism; 4. Sealing connector; 41. Air supply mechanism; 5. Machine body; 6. Liquid storage bottle; 51. Assembly slot; 52. Circuit board; 53. Air pump; 54. Electric screw; 55. Ejection spring. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0024] See also Figures 1-4 This embodiment provides a disposable consumable structure of an oxygen injection instrument, including an atomizing nozzle 1 and a liquid storage bottle 6.

[0025] The liquid storage bottle 6 is a cylindrical bottle body with a bottle opening at its top and a sealing pusher 3 at its bottom that can be quickly matched with the feeding mechanism of the oxygen injection instrument and can push the material from bottom to top.

[0026] The atomizing nozzle 1 includes a nozzle body 11, a nozzle 12, a liquid channel 13 and a gas channel 14 disposed within the nozzle body 11. A mixing chamber 2 is formed within the nozzle 12 and communicates with the nozzle 12 opening. The output ports of the gas channel 14 and the liquid channel 13 are both connected to the mixing chamber 2.

[0027] In order to reduce the volume and enhance the connection stability, the bottle mouth of the liquid storage bottle 6 is integrated into the nozzle body 11 structure of the atomizing nozzle 1, so that the input port of the liquid channel 13 is connected to the liquid storage bottle 6 to form a stable liquid channel 13.

[0028] The gas channel 14 bypasses the connection between the liquid storage bottle 6 and the liquid channel 13, forming an input port at the end of the nozzle body 11, through which the high-pressure gas provided by the oxygen injector can be obtained. However, since the atomizing nozzle 1 and the liquid storage bottle 6 are disposable consumables and need to be replaced frequently, the input port of the gas channel 14 must cooperate with the gas supply mechanism 41 of the oxygen injector to meet the requirements of both quick release and airtight connection. To this end, a sealing connector 4 is provided at the input port of the gas channel 14 in this embodiment to achieve these requirements.

[0029] The specific operation mode of this embodiment is: Assemble the disposable consumable consisting of the atomizing nozzle 1 and the liquid storage bottle 6 onto the oxygen injector, ensuring that the sealing pusher 3 at the bottom of the liquid storage bottle 6 cooperates with the pusher mechanism 31 of the oxygen injector after assembly, and that the sealing connector 4 embedded in the input port of the gas channel 14 formed on the atomizing nozzle 1 cooperates with the gas supply mechanism 41 of the oxygen injector. When the oxygen injector is turned on, the gas supply mechanism 41 outputs high-pressure gas through the gas channel 14 into the mixing chamber 2, and the pusher mechanism 31 pushes the liquid in the liquid storage bottle 6 into the mixing chamber 2 through the liquid channel 13. The high-pressure gas and liquid mix and collide to produce an atomization effect, which is then output from the nozzle 12.

[0030] After use, in order to prevent the residual liquid from polluting the gas channel 14 or the residual solidifying and clogging the channel, the disposable consumables consisting of the atomizing nozzle 1 and the liquid storage bottle 6 can be directly discarded.

[0031] It is worth mentioning that since the disposable consumables structure in this application does not require special requirements for the physical properties of the materials, it benefits from the convenience brought by structural optimization and has great operability in material selection. To avoid the pollution problems caused by the large-scale consumption of disposable consumables, the atomizing nozzle 1 and liquid storage bottle 6 of this application can be made entirely of environmentally friendly materials, thereby controlling the environmental problems caused by disposable items. On this basis, the safety and reliability of the oxygen injection instrument are improved, avoiding problems such as liquid contamination or nozzle clogging.

[0032] Since the purpose of this embodiment is to use the atomizing nozzle 1 as a disposable consumable, reducing the manufacturing cost of the atomizing nozzle 1 while ensuring its ability to produce an atomizing effect is a top priority for this solution. To this end, the design of the nozzle 12 structure needs to be different from the existing complex nozzle 12 structure design, reducing material costs and processing difficulty, so that the nozzle 12 structure has the characteristics of simple structure and simple process, suitable for mass production and cost dilution.

[0033] The specific solution for the structure of the nozzle 12 is to split it into two parts, a shell 121 and a mounting seat 122, which are easy to process. The shell 121 is provided with a nozzle 12 opening, and the mounting seat 122 is embedded in the shell 121 to complete the sealed assembly. The mounting seat 122 reserves space on the side close to the nozzle 12 opening, thereby forming a mixing chamber 2 connected to the nozzle 12 opening.

[0034] A protrusion is formed within mixing chamber 2, extending from the surface of mounting base 122 toward nozzle 12. This protrusion stands within mixing chamber 2, its top end adjacent to nozzle 12, leaving only a narrow gap. The shape of mixing chamber 2 exhibits a specialized structure with a relatively large space surrounding the protrusion and a narrow passageway formed between the top end of the protrusion and nozzle 12.

[0035] Liquid channel 13 extends through the protrusion until it opens at the top of the protrusion, forming an outlet. This outlet is slightly spaced from the nozzle 12, creating a narrow gap between the protrusion's top and the nozzle 12. This narrow channel connects to the wider mixing chamber 2. Gas channel 14 extends through the non-protruding portion of mounting base 122, completing the connection at the wider mixing chamber.

[0036] In this nozzle 12 structure, after high-pressure gas is introduced into the mixing chamber 2 through the gas channel 14, it preferentially fills the entire chamber, then converges from the circumference surrounding the protrusion toward its center, where the outlet of the liquid channel 13 is located. During this process, it impacts the narrow gap between the protrusion and the outlet of the nozzle 12. As the high-pressure gas is released outward, the narrower the release channel, the greater the increase in air flow rate. The liquid discharged from the outlet of the liquid channel 13 is dispersed by the circumferential high-speed airflow the moment it passes through the narrow gap, thus producing an atomization effect. At this point, the atomized cloud has already moved out of the nozzle 12 due to inertia and the pressure differential.

[0037] In order to make the airflow impact effect in all directions uniform, in one embodiment, the main structure of the protrusion is set to a regular rotationally symmetrical structure, that is, a cylindrical or conical structure, and a conical tip is formed at the top of the protrusion. The nozzle 12 is also designed to be a conical groove structure embedded in the inner wall of the shell 121. After the entire protrusion is aligned with the axis of the nozzle 12, it can be ensured that the gap formed between the two is uniform in shape and size in all directions.

[0038] Furthermore, when high-pressure gas converges from a relatively large space into a gradually narrowing channel, the channel's shape can produce different effects. By setting the slope of the inclined inner wall of the nozzle 12 and the slope of the inclined surface at the tip of the protrusion to different values, the gap formed between the two forms a rotationally symmetrical channel, with the distance decreasing closer to the center and increasing farther away from the center. This interface exhibits a quasi-conical shape. This conical-shaped channel causes the airflow to scatter at the outlet after passing through it. The scattering effect is related to the taper of the conical section.

[0039] In this embodiment, because the rotationally symmetric channel is not a standard cone, while similar trends are present, the calculations cannot be directly applied. Therefore, extensive testing is required to verify the optimal tilt ratio. This optimal tilt ratio generates a high-pressure airflow that, upon impacting the liquid, exhibits the desired scattering range and force to produce the optimal atomization effect.

[0040] In order to quantitatively calibrate the non-standard-shaped channel and determine the corresponding parameters, this embodiment uses the ratio of the minimum distance between the protrusion tip and the inner wall of the nozzle 12 to the maximum distance between the two to replace the slope of the standard cone.

[0041] During the experiment, multiple groups of ratios were selected to test the atomization effect.

[0042] When the ratio is 1:1.2, the inclination of the channel is smaller, and the turbulent interference formed at the outlet is less, allowing the high-pressure airflow to pass through the outlet more smoothly. Although the single impact effect on the water flow is extremely large, the discrete crushing effect is insufficient, the atomization degree is lower than the usage standard, and cannot meet the atomization requirements of the oxygen injection instrument.

[0043] When the ratio is 1:1.6, the channel inclination increases somewhat, increasing the turbulent interference at the outlet, which in turn affects the high-pressure airflow and causes it to disperse. In this case, the directional, discrete high-pressure airflow impacts the output liquid, significantly improving the impact and discrete fragmentation effects. A high percentage of experiments achieved atomization levels that met the standard, essentially meeting the atomization requirements of oxygen injection instruments.

[0044] When the ratio is 1:2, the channel tilt increases significantly, significantly increasing the turbulent interference at the outlet. This significantly impacts the high-pressure airflow as it passes through the outlet, causing it to disperse widely. In this case, the directional, discrete high-pressure airflow impacts the output liquid, significantly improving the impact and discrete fragmentation effects. Atomization consistently meets standards throughout multiple experiments, meeting the atomization requirements of oxygen injection instruments.

[0045] When the ratio is 1:2.4, the channel tilt increases significantly, creating more turbulent interference at the outlet, significantly impacting the high-pressure airflow as it passes through the outlet, resulting in a large-scale dispersion phenomenon. At this point, the impact of the isotropically dispersed high-pressure airflow on the output liquid weakens, reducing the effectiveness of the discrete fragmentation. The atomization level became inconsistent across multiple experiments, but the overall compliance rate remained within the range required by the oxygen injector.

[0046] It is predicted that further increasing the ratio from 1:2.5 will result in the atomization effect not being able to meet the requirements of the oxygen injection instrument. Therefore, the ratio range that can meet the atomization requirements is between 1:1.5 and 1:2.5.

[0047] Thanks to the structural design of the nozzle 12, the atomizing nozzle 1 and the liquid storage bottle 6 can be implemented as disposable consumables. However, it is also necessary to consider the problem that the disassembly and assembly efficiency of the disposable consumables will affect the user experience and efficiency. To this end, the assembly method of the disposable consumables and the oxygen injection instrument needs to reflect the quick disassembly efficiency and the stability and reliability of the use status as much as possible. In the process of combining the two, there are three places that need to be matched and connected: one is the installation stability of the overall structure, the second is the connection efficiency and sealing of the high-pressure gas supply channel, and the third is the connection efficiency and sealing of the liquid pushing device.

[0048] Based on the above considerations, since ensuring stable installation of the overall structure is a relatively common design approach, and multiple methods exist for multi-directional positioning, this embodiment boldly forgoes positioning restrictions when addressing the connection between the gas channel 14 and the oxygen injector's gas supply mechanism 41. Instead, the present embodiment utilizes only core components that can be slotted into and seal the gas supply connector. As long as the disposable consumable remains stable relative to the oxygen injector, the connection between the gas channel 14 and the gas supply connector remains stable. This design approach also simplifies the structure and reduces costs. To this end, in this embodiment, the structural component used to connect the two is a sealing connector 4. This sealing connector 4 is constructed using a silicone plug-in block, which is inserted into the nozzle body 11 at a position corresponding to the gas channel 14 input port. An air inlet is provided on this silicone plug-in block, connecting the gas channel 14. The diameter of the air inlet is slightly smaller than that of the gas supply connector provided on the oxygen injector, ensuring an interference fit between the gas supply connector and the silicone plug-in block during assembly. The elasticity and sealing properties of the silicone material allow for a quick-release connection between the gas channel 14 and the gas supply connector.

[0049] To ensure efficient and tight connection between the liquid storage bottle 6 and the liquid pushing device, the structure of the liquid storage bottle 6 has been adjusted. The conventional bottle bottom is removed, and a piston push plate is installed in its place as a connecting block. A push piston is installed inside the bottle, capable of sliding and maintaining a seal with the inner wall of the bottle. With this modification, a structure is formed at the bottom of the liquid storage bottle 6 that can push the liquid in the bottle upward and discharge it. Once the liquid storage bottle 6 is assembled into the oxygen injection instrument, the pushing structure in the oxygen injection instrument acts on the bottom of the liquid storage bottle 6, completing a quick assembly of liquid feeding. Furthermore, the simple structure reduces the cost of the liquid storage bottle 6 as a disposable consumable.

[0050] In order to prevent the push structure of the oxygen injection instrument from deflecting its thrust and causing the push piston to tilt and leak, a positioning groove for matching the push mechanism is opened at the bottom of the connecting block to ensure that the push mechanism is accurately assembled and the thrust provided is always kept on the central axis, reducing the probability of the push piston being skewed.

[0051] Because the disposable consumable's atomizing nozzle 1 and liquid storage bottle 6 each have a connection point for air supply or thrust from the oxygen injector, threaded or other rotary mounting methods are not suitable for assembly and disassembly. Therefore, this embodiment uses a direct plug-in design for the disposable consumable and the injector. A single insertion completes the overall insertion and positioning, with the silicone plug-in block connecting to the air supply connector and the oxygen injector's feed mechanism abutting against the bottom connection block and push piston of the liquid storage bottle 6.

[0052] In order to optimize the smoothness of the assembly operation of disposable consumables, the air inlet of the silicone plug-in block is optimized into a trumpet-shaped channel that is wide on the outside and narrow on the inside and has a guiding function. The diameter of the narrow opening is smaller than the diameter of the air supply connector to maintain the seal, while the wide opening makes it easier to insert the air supply connector.

[0053] In order to optimize the smoothness of the assembly operation of disposable consumables, an outward-expanding guide expansion structure is provided at the notch of the positioning groove on the bottom connecting block of the liquid storage bottle 6, so that the pushing mechanism of the oxygen injection instrument is easier to align and assemble.

[0054] After improving the atomizing nozzle 1 and the liquid storage bottle 6 through the above embodiment to produce a low-cost disposable consumable combination, it is applied to the oxygen injection instrument body 5 of some existing products. Although it can be used, since the existing oxygen injection instruments are not designed for the replacement of consumables and are not specially equipped with relevant quick-disassembly solutions, there are always many incoordination problems in replacing consumables and using them together.

[0055] To this end, in one embodiment, an oxygen injection device solution is provided, centered around the core design concept of consumable replacement. The device comprises a housing 5 and an assembly slot 51 defined therein. The oxygen injection devices described in the aforementioned embodiments can be inserted into the assembly slot 51 for use and then removed and replaced after use.

[0056] The body 5 serves as the main body of the oxygen injection instrument. Its built-in circuit board 52 integrates the control circuits of various structures as the control terminal of the entire machine. In addition, the body 5 is also provided with an air pump 53 and an electric screw 54, which are respectively electrically connected to the control terminal to control the start and stop and power size of the two by sending instructions through the control terminal.

[0057] To accommodate the quick-release concept of disposable consumables, several considerations were incorporated into the design of the assembly slot 51: The first is the assembly stability of the consumable. To simplify mass production, the liquid storage bottle 6 is typically cylindrical, a relatively simple process. If the assembly groove 51 were designed solely based on the shape of the liquid storage bottle 6, it would inevitably rotate or wobble, seriously affecting the use of the oxygen injector. Therefore, the assembly groove 51 is designed based on the contours of the liquid storage bottle 6 and also incorporates a portion of the contours of the atomizing nozzle 1. The fusion of the two creates a non-rotating, non-conformal structure, thus enhancing the stability of the disposable consumable.

[0058] The second is the assembly of the positioning groove at the bottom of the liquid storage bottle 6 and the electric screw 54. The electric screw 54 is placed in the inner cavity of the body 5 at the bottom of the assembly groove 51 and fixed. Then a through hole is set at the bottom of the contoured groove part of the assembly groove 51 that matches the liquid storage bottle 6 to connect to the inner cavity where the electric screw 54 is located, so that the telescopic end of the electric screw 54 can pass through the through hole and enter the assembly groove 51. When the disposable consumables are installed, the liquid storage bottle 6 enters the assembly groove 51, and the positioning groove on the bottom connecting block thereof is matched with the telescopic end of the electric screw 54, so that the electric screw 54 can be pushed in one direction. After completing the entire stroke of the pushing piston, the electric screw 54 is withdrawn and the disposable consumables are pulled out and replaced.

[0059] The third step is to assemble the air supply mechanism 41 and the silicone plug-in block. After the air pump 53 is built into the vacant space of the body 5, an air supply connector is installed at the bottom of the assembly groove 51 that matches the contoured groove of the atomizing nozzle 1. The connector portion of the air supply connector is inserted into the assembly groove 51, and the remaining portion remains in the inner cavity of the body 5 outside the assembly groove 51. The air supply connector and the air pump 53 are then connected via a silicone hose. When installing the disposable consumable, the bottom end of the atomizing nozzle 1 enters the corresponding contoured groove portion of the assembly groove 51. The silicone plug-in block on the atomizing nozzle 1 abuts against the air supply connector, and the air supply connector is inserted into the air inlet to complete the airtight connection.

[0060] Since the oxygen injection instrument that matches disposable consumables is in an unloaded state when the consumables are not assembled, the air supply connector and the telescopic end of the electric screw 54 are exposed in the assembly groove 51. If it is accidentally started at this time, it will cause a certain degree of hardware loss and reduce the lifespan. It may also cause the electric screw 54 to be reset inaccurately, thereby affecting the assembly accuracy of the disposable consumables. For this reason, a pressure-sensitive switch is provided on the inner wall of the assembly groove 51, which is connected to the power circuit of the control terminal through the pressure-sensitive switch. When the pressure-sensitive switch detects that there is a liquid storage bottle 6 in the assembly groove 51, the power circuit of the control terminal remains connected. When the pressure-sensitive switch does not detect the liquid storage bottle 6 in the assembly groove 51, the power circuit of the control terminal is powered off for protection.

[0061] There are many options for the pressure-sensitive switch, including a mechanical pressure plate, a pressure-sensitive sensor, or a sensor with similar testing functions. Considering manufacturing cost, stability, and ease of maintenance, the present embodiment adopts a mechanical pressure plate structure.

[0062] After the disposable consumables are assembled, they are inevitably prone to tilting or even inverting during handheld use. To facilitate quick assembly, the matching dimensions of the consumables and the assembly slot 51 need to maintain a certain difference to reduce friction during insertion and removal. To this end, an additional limiting or positioning structure is required to lock the consumables within the assembly slot 51. In one embodiment, a hole is opened on the side wall of the assembly slot 51 that matches the liquid storage bottle 6, and a limiting key is installed in the hole. The limiting key is retracted during insertion and removal of the liquid storage bottle 6 and pops out when the liquid storage bottle 6 is fixed.

[0063] In order to better play the role of the limit key, the outer wall of the liquid storage bottle 6 is also processed with a groove, the position of which matches the limit key, so that the consumables and the assembly groove 51 have a better locking effect.

[0064] Due to the multi-point connection design between the consumables and the assembly slot 51, it is difficult to pour out the consumables directly by simply turning them upside down when replacing them, and the part of the consumables exposed outside the assembly slot 51 is also relatively small, making it inconvenient to pull out. This causes the problem of inconvenient removal of consumables. To this end, in one embodiment, the structure of the material removal spring 55 is specially designed, and it is installed in the redundant space extended from the bottom of the assembly slot 51. When the consumables are inserted into the assembly slot 51, the material removal spring 55 is compressed, and it is more convenient to provide thrust from the outside to the inside. After the consumables are pressed into the predetermined position, the position is locked by the limit key. When the consumables are used up and need to be replaced, the limit key is unlocked, and the material removal spring 55 releases the accumulated elastic potential energy to act on the consumables, assisting the consumables to be removed from the inside. Optimize the operational convenience of replacing consumables.

[0065] When the oxygen injection instrument is not equipped with consumables or the consumables are not used up once, the assembly slot 51 needs to be closed to protect the internal structure. For this purpose, a cover that can be buckled on the notch of the assembly slot 51 is designed.

[0066] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A disposable consumable structure of an oxygen injection instrument, characterized in that: It includes an atomizing nozzle and a liquid storage bottle; the atomizing nozzle includes a nozzle body, a nozzle, and a liquid channel and a gas channel arranged in the nozzle body, a mixing chamber connected to the nozzle mouth is formed in the nozzle, the output port of the liquid channel and the output port of the gas channel are respectively connected to the mixing chamber, the input port of the gas channel is provided with a sealing connector for quick-detach connection to the oxygen injection instrument air supply mechanism, the input port of the liquid channel is connected to the liquid outlet of the liquid storage bottle, and the liquid storage bottle is also provided with a sealing pusher for quick-detach connection to the oxygen injection instrument feeding mechanism.

2. The disposable consumable structure of the oxygen injection instrument according to claim 1, characterized in that: The nozzle includes a shell and a mounting seat, the nozzle opening is opened in the shell, the end surface of the mounting seat facing the nozzle opening and the inner wall of the shell enclose the mixing chamber, the mounting seat is formed with a protrusion at the position corresponding to the nozzle opening, a gap is reserved between the tip of the protrusion and the nozzle opening, and the gap is connected to the mixing chamber, the liquid channel passes through the protrusion and forms an output port at its tip, and the gas channel passes through the mounting seat and is connected to the mixing chamber.

3. The disposable consumable structure of the oxygen injection instrument according to claim 2, characterized in that: The liquid channel output port is coaxially aligned with the nozzle opening, the tip of the protrusion is a conical structure, and the nozzle opening is a conical groove recessed inward from the inner surface of the shell. The ratio of the minimum distance between the tip of the protrusion and the nozzle opening to the maximum distance between the two is in the range of 1:1.5 to 1:2.

5.

4. The disposable consumable structure of the oxygen injection instrument according to claim 1, characterized in that: The sealing connector includes a silicone plug-in block embedded in the end of the nozzle body, and the silicone plug-in block is provided with an air inlet connected to the gas channel. The diameter of the air inlet is smaller than the diameter of the oxygen injection instrument air supply mechanism connector so that the two are interference fit.

5. The disposable consumable structure of the oxygen injection instrument according to claim 1, characterized in that: The liquid storage bottle has a bottomless structure, and the sealed pushing member includes a pushing piston slidably arranged in the liquid storage bottle and an embedded connecting block slidably arranged on the bottom of the liquid storage bottle and synchronized with the pushing piston. The embedded connecting block is used to plug and match the oxygen injection instrument feeding mechanism.

6. An oxygen injection instrument, characterized in that: The invention comprises a body and an assembly groove provided on the body, wherein the assembly groove is used for quick disassembly and assembly of the disposable consumable structure of the oxygen injection instrument according to any one of claims 1 to 5.

7. An oxygen injection instrument according to claim 6, characterized in that: A control terminal and an air pump and an electric screw electrically connected to the control terminal are provided in the body; an air supply plug is provided in the assembly groove, and the air supply plug is connected to the air pump through a silicone hose; the assembly groove is also connected to the inner cavity of the body where the electric screw is installed, and the movable end of the electric screw reciprocates in the assembly groove.

8. An oxygen injection instrument according to claim 7, characterized in that: The inner side wall of the assembly slot is further provided with a pressure-sensitive switch, which is electrically connected to the control terminal. When the disposable consumable structure is loaded into the assembly slot, the pressure-sensitive switch presses and activates the circuit of the control terminal.

9. The oxygen injection device according to claim 7, characterized in that: The side wall of the assembly slot is further provided with an ejection key, and the ejection key is used to assist the disposable consumable structure in ejecting.

10. The oxygen injection device according to claim 7, characterized in that: The machine body is matched with a cover, and the cover is snap-fitted with the machine body to cover the notch of the assembly slot.

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