Hydrogen oxygen beauty and health instrument

Abstract

The invention discloses a hydrogen-oxygen beauty and health instrument, and relates to the technical fields of fans, air purification and water electrolysis hydrogen-oxygen atomization. The instrument comprises a left shell and a right shell, wherein a fan is installed in the right shell, a circular hole is formed on the left side of the left shell, and a wind shield is installed at an air outlet formed on the right side of the right shell, a curved edge is formed on the inner side of the circular hole, and the left end of the wind shield is gap-matched on the outer side of the curved edge, an air inlet formed on the side of the left shell is arranged on the side of the fan, ribs are formed on the inner sides of the left shell and the right shell, a micro-atomizer is cooperated and installed on the upper end of the right shell, and the micro-atomizer and the wind shield are separated by the ribs, a PCB board and a lithium battery are installed in the right shell, and the lithium battery supplies power to the fan and the micro-atomizer through the PCB board, and the PCB board is arranged on the right side of the air inlet; alkaline hydrogen-rich mist generated by the micro-atomizer is output together with the air outlet, and the generated hydrogen is about twice that of oxygen, and the airflow can take away the heat on the PCB board, can reduce heat in summer, and is beneficial to beauty and disease treatment.

Description

Technical Field

[0001] The invention relates to the technical field of fans, the field of air purification, and the field of water electrolysis, hydrogen and oxygen atomization, and in particular to a hydrogen and oxygen beauty and health instrument in the form of a handheld bladeless fan structure. Background Art

[0002] As people pursue a better quality of life, more and more small household appliances appear in our lives, such as handheld fans, which are easy to carry and can be used anytime and anywhere to relieve the high temperature and heat. In addition, due to safety considerations, handheld fans with bladeless structures have appeared. In the handheld fans in the related art, especially the handheld fans with bladeless structures, the fan outputs through the air guide ring, generates high-pressure airflow to discharge the gas, forms a pressure difference to drive the airflow behind the air outlet, and forms a stronger blowing airflow.

[0003] However, the handheld fan with a bladeless structure in the related art can only achieve the blowing effect. In places with poor air environment and high temperature, the health index of the wind blown out is low and the cooling effect is not good. Moreover, when working for a long time, the circuit board driving the fan will generate a lot of heat, resulting in a short service life of the handheld fan. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a technical solution that can solve the above-mentioned problems.

[0005] The hydrogen oxygen beauty and health instrument comprises a left shell and a right shell. The left shell is installed on the left side of the right shell by screws. A fan is fixedly installed in the right shell and is arranged upward. A circular hole is formed on the left side of the upper end of the left shell, and an air outlet is formed on the right side of the upper end of the right shell. The air outlet is arranged on the right side of the circular hole. A wind shield is fixedly installed at the air outlet. A curved edge is formed on the inner side of the circular hole. The left end of the wind shield is installed on the outer side of the curved edge with a gap. A ventilation ring is formed at the gap between the wind shield and the curved edge. An air inlet is formed on the side of the left shell and is arranged on the right side of the wind shield. On the side below the machine, ribs are formed on the inner sides of the upper ends of the left shell and the right shell, and the ribs are arranged above the wind hood. A micro atomizer is installed in the upper end gap of the right shell, and the micro atomizer is arranged above the wind hood. The micro atomizer and the wind hood are separated by the ribs. A PCB board and a lithium battery are fixedly installed in the right shell, and the lithium battery is arranged below the PCB board. The lithium battery supplies power to the fan and the micro atomizer through the PCB board. The PCB board is arranged on the right side of the air inlet, and the fan is arranged above the PCB board.

[0006] As a further solution of the present invention: an annular groove is formed on the side of the left shell, a cover plate is installed at the annular groove for plug-in cooperation, the air inlet is formed on the annular groove, an air hole is formed on the cover plate, the air hole is arranged on the left side of the air inlet, an air purification filter is arranged between the cover plate and the annular groove, and the air purification filter is arranged between the air hole and the air inlet.

[0007] As a further solution of the present invention: the air purification filter includes an air purification filter frame and filter cotton, a groove is formed on the outer side of the upper end of the annular groove, the filter cotton is installed in the groove with a gap fit, the air purification filter frame is arranged on the inner side of the cover plate, and the air purification filter frame covers the filter cotton arrangement.

[0008] As a further solution of the present invention: the micro-atomizer includes a water tank upper shell, a platinum-titanium electrolytic sheet, an ion membrane, a water tank lower shell and an atomizing sheet. A water inlet is formed on the water tank upper shell, the water inlet is connected to the left shell, a water injection hole plug is tightly installed at the water inlet, the platinum-titanium electrolytic sheet and the ion membrane are fixedly installed in the water tank lower shell, a water outlet is formed on the water tank lower shell, the platinum-titanium electrolytic sheet and the ion membrane cover the water outlet, the atomizing sheet is pressed on the lower side of the water tank lower shell, the atomizing sheet covers the water outlet, a mist outlet is formed on the upper end of the right shell, the mist outlet is arranged on the right side of the atomizing sheet, and the lithium battery supplies power to the atomizing sheet through the PCB board.

[0009] As a further solution of the present invention: a plurality of evenly arranged micropores are formed on the platinum-titanium electrolytic sheet, the platinum-titanium electrolytic sheet is provided with two separately arranged micropores, the ion membrane is squeezed between the two platinum-titanium electrolytic sheets, a screw is fixedly installed on the outer side of the platinum-titanium electrolytic sheet, a positioning hole is formed on the lower shell of the water tank, the end of the screw passes through the lower shell of the water tank through the positioning hole, a nut is spirally installed on the end of the screw, and the nut is pressed on the outer side of the lower shell of the water tank.

[0010] As a further solution of the present invention: a water tank sealing ring is sleeved and installed on the screw rod, and the water tank sealing ring is squeezed between the inner side of the lower shell of the water tank and the platinum-titanium electrolytic sheet.

[0011] As a further solution of the present invention: a fan bracket is fixedly installed in the right shell by screws, the fan is fixedly installed in the fan bracket, and a shock-absorbing gasket is sleeved and installed on the outer side of the fan bracket.

[0012] As a further solution of the present invention: a base is provided on the lower side of the left shell and the right shell, the base includes an upper shell and a lower shell, a positioning groove is formed on the upper shell, the lower ends of the upper shell and the lower shell are inserted into the positioning groove accordingly, the lower shell is fixedly installed on the lower side of the upper shell, and a number of evenly arranged anti-slip gaskets are fixedly installed on the lower side of the lower shell.

[0013] As a further solution of the present invention: a light strip is fixedly installed in the air-permeable ring, and a lithium battery supplies power to the light strip through a PCB board.

[0014] As a further solution of the present invention: a touch button is embedded and installed on the PCB board, a button hole is formed on the right shell, a button is installed in the button hole with a clearance fit, the button is pressed on the touch button, a limit ring is formed on the outer side of the lower end of the button, and the limit ring is arranged on the inner side of the button hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The fan is electrically connected to the lithium battery. When the fan rotates, it generates high-pressure airflow. The gas at the air inlet on the left shell is driven by the fan to the air outlet for discharge, thus forming a bladeless structure fan. At the same time, the pressure difference drives the airflow behind the circular hole, forming a strong blowing airflow, achieving the effect of blowing and cooling down.

[0017] At the same time, water is sent into the micro-atomizer, and the hydrogen-rich mist generated by the micro-atomizer is output above the air outlet. The strong blowing airflow and the mist are blown to the human skin or the affected part for health care and treatment, or to achieve the effect of quickly cooling down the heat;

[0018] After the left shell and the right shell cooperate with each other, the two ribs form an independent chamber on the inner side of the upper end of the left shell and the right shell. The independent chamber isolates the micro atomizer and the fan from each other, so that the functions of the two do not interfere with each other and are safer to use.

[0019] When the fan is working, it drives the gas from the air inlet to the air ring. The gas flows from the side of the PCB board, taking away the heat emitted from the PCB board, solving the heat dissipation problem of the PCB board 12, and optimizing the product life and performance.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the present invention separated from the base.

[0024] Figure 3 It is a schematic diagram of the structure in which the left shell and the right shell of the present invention are opened to each other.

[0025] Figure 4 It is a schematic diagram of the explosion structure of the present invention.

[0026] Figure 5 It is a schematic diagram of the explosion structure from another viewing angle of the present invention.

[0027] Figure 6It is a schematic diagram of the explosion structure of the micro-atomizer of the present invention.

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the present invention.

[0029] As shown in the figure: 1. Left shell; 2. Right shell; 3. Fan; 4. Circular hole; 5. Air outlet; 6. Wind cover; 7. Curved edge; 8. Breathing ring; 9. Air inlet; 10. Rib position; 11. Micro atomizer; 12. PCB board; 13. Lithium battery; 14. Annular groove; 15. Cover plate; 16. Breathing hole; 17. Air purification filter; 17-1. Air purification filter rack; 17-2. Filter cotton; 18. Groove; 11-1. Water tank upper shell; 11-2. Platinum titanium electrolytic sheet; 11-3. Ion Membrane; 11-4, water tank lower shell; 11-5, atomizing sheet; 19, water inlet; 20, water injection hole plug; 21, water outlet; 22, mist outlet; 23, micropores; 24, screw; 25, positioning hole; 26, nut; 27, water tank sealing ring; 28, fan bracket; 29, shock-absorbing gasket; 30, base; 30-1, upper shell; 30-2, lower shell; 31, positioning groove; 32, anti-slip gasket; 33, light strip; 34, touch button; 35, button hole; 36, button; 37, limit ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-7The hydrogen and oxygen beauty and health instrument comprises a left shell 1 and a right shell 2. The left shell 1 is installed on the left side of the right shell 2 by screws. A fan 3 is fixedly installed in the right shell 2. The fan 3 is arranged upward. A circular hole 4 is formed on the left side of the upper end of the left shell 1. An air outlet 5 is formed on the right side of the upper end of the right shell 2. The air outlet 5 is arranged on the right side of the circular hole 4. A wind cover 6 is fixedly installed at the air outlet 5. A curved edge 7 is formed on the inner side of the circular hole 4. The left end of the wind cover 6 is installed on the outer side of the curved edge 7 with a gap. A ventilation ring 8 is formed at the gap between the wind cover 6 and the curved edge 7. An air inlet 9 is formed on the side of the left shell 1. The air inlet 9 is arranged on the side below the fan 3. The inner sides of the upper ends of the left shell 1 and the right shell 2 are both formed with ribs 10, and the ribs 10 are arranged above the wind hood 6. A micro-atomizer 11 is installed in the upper end of the right shell 2 in a clearance fit, and the micro-atomizer 11 is arranged above the wind hood 6. The micro-atomizer 11 and the wind hood 6 are separated by the ribs 10. A PCB board 12 and a lithium battery 13 are fixedly installed in the right shell 2, and the lithium battery 13 is arranged below the PCB board 12. The lithium battery 13 supplies power to the fan 3 and the micro-atomizer 11 through the PCB board 12. The PCB board 12 is arranged on the right side of the air inlet 9, and the fan 3 is arranged above the PCB board 12;

[0032] The principle is:

[0033] The fan 3 is electrically connected to the lithium battery 13. When the fan 3 rotates, a high-pressure airflow is generated. The gas at the air inlet 9 at the left shell 1 is driven by the fan 3 to the air outlet 5 for discharge, thereby forming a bladeless structure fan. At the same time, a pressure difference is formed to drive the airflow behind the circular hole 4, forming a strong blowing airflow, achieving the effect of blowing and cooling down.

[0034] At the same time, water is fed into the micro-atomizer 11, and the hydrogen-rich mist generated by the micro-atomizer 11 is output above the air outlet 5, and the strong blowing airflow and the hydrogen-rich mist are blown onto the skin or affected part of the human body for health care and treatment, or to achieve the effect of quickly cooling down the heat;

[0035] After the left shell 1 and the right shell 2 cooperate with each other, the two ribs 10 form an independent chamber on the inner side of the upper ends of the left shell 1 and the right shell 2, and the micro atomizer 11 and the fan 3 are isolated from each other through the independent chamber, so that the functions of the two do not interfere with each other, and the use is safer;

[0036] When the fan 3 is working, it drives the gas to be transported from the air inlet 9 to the air ring 8. The gas flows from the side of the fan 3 and the PCB board 12, taking away the heat emitted from the PCB board 12, solving the heat dissipation problem of the PCB board 12, and optimizing the product life and performance.

[0037] As a further solution of the present invention: an annular groove 14 is formed on the side of the left shell 1, a cover plate 15 is installed in a plug-fitting manner at the annular groove 14, the air inlet 9 is formed on the annular groove 14, an air vent 16 is formed on the cover plate 15, the air vent 16 is arranged on the left side of the air inlet 9, an air purification filter 17 is arranged between the cover plate 15 and the annular groove 14, and the air purification filter 17 is arranged between the air vent 16 and the air inlet 9; so that dust impurities in the gas will not enter the left shell 1 and the right shell 2, and dust is not easily accumulated at the PCB board 12 and the fan 3, and the air purification filter 17 can be disassembled, cleaned and replaced for easy use.

[0038] As a further solution of the present invention: the air purification filter 17 includes an air purification filter frame 17-1 and filter cotton 17-2, a groove 18 is formed on the outer side of the upper end of the annular groove 14, and the filter cotton 17-2 is installed in the groove 18 with a clearance fit, and the air purification filter frame 17-1 is arranged on the inner side of the cover plate 15, and the air purification filter frame 17-1 covers the filter cotton 17-2; so that the filter cotton 17-2 can be fixed by the air purification filter frame 17-1, and the installation is more stable.

[0039] As a further solution of the present invention: the micro-atomizer 11 includes a water tank upper shell 11-1, a platinum-titanium electrolytic sheet 11-2, an ion membrane 11-3, a water tank lower shell 11-4 and an atomizing sheet 11-5. A water inlet 19 is formed on the water tank upper shell 11-1, and the water inlet 19 is arranged through the left shell 1. A water injection hole plug 20 is tightly installed at the water inlet 19. The platinum-titanium electrolytic sheet 11-2 and the ion membrane 11-3 are fixedly installed in the water tank lower shell 11-4. A water outlet 21 is formed on the water tank lower shell 11-4. The platinum-titanium electrolytic sheet 11-2 and the ion membrane 11-3 cover the water outlet 21. The atomizing sheet 11-5 is pressed on the lower side of the lower shell 11-4 of the water tank, the atomizing sheet 11-5 covers the water outlet 21, the upper end of the right shell 2 is formed with a mist outlet 22, and the mist outlet 22 is arranged on the right side of the atomizing sheet 11-5. The lithium battery 13 supplies power to the atomizing sheet 11-5 through the PCB board 12; the upper shell 11-1 of the water tank is turned upside down into the left shell 1, and the water tank firmly presses the atomizing sheet 11-5 into the right shell 2, thereby completing the fixing of the overall structure, reasonably utilizing the space between the left shell 1 and the right shell 2, and increasing the volume of the water tank. The water source is electrolyzed by the platinum-titanium electrolytic sheet 11-2 to form a pH of about 8 .5-9.5 alkaline hydrogen-rich water, and then spray hydrogen-rich mist through the atomizing sheet 11-5. On the one hand, it is weakly alkaline small molecular cluster water that is beneficial to the human body, healthy and environmentally friendly, and has a beauty effect on the human face. Alkaline hydrogen-rich mist, that is, hydrogen mist, is mainly hydrogen and supplemented by oxygen. It also contains a large amount of hydrogen ions and hydroxide ions. The mist is alkaline and has a good health care and rehabilitation treatment effect on various skin problems and respiratory problems. On the other hand, it can further enhance the effect of reducing heat and cooling.

[0040] As a further solution of the present invention, a plurality of uniformly arranged micropores 23 are formed on the platinum-titanium electrolytic sheet 11-2, the platinum-titanium electrolytic sheet 11-2 is provided with two separately arranged micropores 23, the ion membrane 11-3 is squeezed between the two platinum-titanium electrolytic sheets 11-2, a screw 24 is fixedly installed on the outer side of the platinum-titanium electrolytic sheet 11-2, a positioning hole 25 is formed on the lower shell 11-4 of the water tank, the end of the screw 24 passes through the lower shell 11-4 of the water tank through the positioning hole 25, and the end of the screw 24 is spirally provided. The nut 26 is installed together and pressed on the outer side of the lower shell 11-4 of the water tank; the platinum-titanium electrolytic sheet 11-2 with the screw 24 is built into the water tank, and the screw 24 is extended out of the water tank through the two positioning holes 25 of the lower shell 11-4 of the water tank, and the upper shell 11-1 of the water tank and the lower shell 11-4 of the water tank are ultrasonically welded together, and the platinum-titanium electrolytic sheet 11-2 forms a wiring terminal through the screw 24, so as to realize power supply at the platinum-titanium electrolytic sheet 11-2 in the water tank.

[0041] As a further solution of the present invention: a water tank sealing ring 27 is mounted on the screw 24, and the water tank sealing ring 27 is squeezed between the inner side of the water tank lower shell 11-4 and the platinum-titanium electrolytic sheet 11-2; so that the water in the water tank will not overflow from the screw 24, thereby achieving the effect of avoiding leakage.

[0042] As a further solution of the present invention, a fan bracket 28 is fixedly installed in the right shell 2 by screws, the fan 3 is fixedly installed in the fan bracket 28, and a shock-absorbing washer 29 is sleeved and installed on the outer side of the fan bracket 28, so that the installation of the fan 3 is more stable.

[0043] As a further solution of the present invention: a base 30 is arranged on the lower side of the left shell 1 and the right shell 2, and the base 30 includes an upper shell 30-1 and a lower shell 30-2. A positioning groove 31 is formed on the upper shell 30-1, and the lower ends of the upper shell 30-1 and the lower shell 30-2 are inserted into the positioning groove 31 accordingly. The lower shell 30-2 is fixedly installed on the lower side of the upper shell 30-1, and a plurality of evenly arranged anti-slip pads 32 are fixedly installed on the lower side of the lower shell 30-2; so that the hydrogen oxygen beauty and health instrument can be placed on the desktop for use, and the base 30 can be stably placed on the desktop.

[0044] As a further solution of the present invention: a light strip 33 is fixedly installed in the air-permeable ring 8, and the lithium battery 13 supplies power to the light strip 33 through the PCB board 12, so that the hydrogen-oxygen beauty and health instrument has a more beautiful effect when working.

[0045] As a further solution of the present invention: a touch button 34 is embedded and installed on the PCB board 12, a button hole 35 is formed on the right shell 2, a button 36 is installed in the button hole 35 with a clearance fit, the button 36 is pressed on the touch button 34, a limit ring 37 is formed on the outer side of the lower end of the button 36, and the limit ring 37 is arranged on the inner side of the button hole 35; when the touch button 34 on the PCB board 12 is pressed, the light strip 33, the fan 3, and the micro atomizer 11 can be controlled to work, which is convenient to use.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. Hydrogen oxygen beauty and health instrument, characterized by: The invention comprises a left shell and a right shell, the left shell is installed on the left side of the right shell by screws, a fan is fixedly installed in the right shell, the fan is arranged upward, a circular hole is formed on the left side of the upper end of the left shell, an air outlet is formed on the right side of the upper end of the right shell, the air outlet is arranged on the right side of the circular hole, a wind shield is fixedly installed at the air outlet, a curved edge is formed on the inner side of the circular hole, the left end of the wind shield is installed on the outer side of the curved edge with a gap, a ventilation ring is formed at the gap between the wind shield and the curved edge, an air inlet is formed on the side of the left shell, and the air inlet is arranged below the fan. The inner sides of the upper ends of the left and right shells are formed with ribs, which are arranged above the wind hood. A micro-atomizer is installed in the upper gap of the right shell, which is arranged above the wind hood. The micro-atomizer and the wind hood are separated by the ribs. A PCB board and a lithium battery are fixedly installed in the right shell, which is arranged below the PCB board. The lithium battery supplies power to the fan and the micro-atomizer through the PCB board. The PCB board is arranged on the right side of the air inlet, and the fan is arranged above the PCB board. An annular groove is formed on the side of the left shell, a cover plate is plugged and installed at the annular groove, an air inlet is formed on the annular groove, an air vent is formed on the cover plate, the air vent is arranged on the left side of the air inlet, an air purification filter is arranged between the cover plate and the annular groove, and the air purification filter is arranged between the air vent and the air inlet; The air purification filter includes an air purification filter frame and filter cotton. A groove is formed on the outer side of the upper end of the annular groove. The filter cotton is installed in the groove with a gap fit. The air purification filter frame is arranged on the inner side of the cover plate. The air purification filter frame covers the filter cotton. The micro-atomizer includes an upper shell of a water tank, a platinum-titanium electrolytic sheet, an ion membrane, a lower shell of a water tank and an atomizing sheet. A water inlet is formed on the upper shell of the water tank, the water inlet is connected to the left shell, a water injection hole plug is tightly installed at the water inlet, the platinum-titanium electrolytic sheet and the ion membrane are fixedly installed in the lower shell of the water tank, a water outlet is formed on the lower shell of the water tank, the platinum-titanium electrolytic sheet and the ion membrane cover the water outlet, the atomizing sheet is pressed on the lower side of the lower shell of the water tank, the atomizing sheet covers the water outlet, a mist outlet is formed on the upper end of the right shell, the mist outlet is arranged on the right side of the atomizing sheet, and the lithium battery supplies power to the atomizing sheet through the PCB board; A number of evenly arranged micropores are formed on the platinum-titanium electrolytic sheet. The platinum-titanium electrolytic sheet is provided with two separately arranged ones. The ion membrane is squeezed between the two platinum-titanium electrolytic sheets. A screw is fixedly installed on the outer side of the platinum-titanium electrolytic sheet. A positioning hole is formed on the lower shell of the water tank. The end of the screw passes through the lower shell of the water tank through the positioning hole. A nut is spirally installed on the end of the screw, and the nut is pressed on the outer side of the lower shell of the water tank.

2. The hydrogen-oxygen beauty and health instrument according to claim 1, characterized in that: A water tank sealing ring is sleeved on the screw rod and is squeezed between the inner side of the lower shell of the water tank and the platinum-titanium electrolytic sheet.

3. The hydrogen-oxygen beauty and health instrument according to claim 1, characterized in that: A fan bracket is fixedly installed in the right shell by screws, the fan is fixedly installed in the fan bracket, and a shock-absorbing gasket is sleeved and installed on the outer side of the fan bracket.

4. The hydrogen-oxygen beauty and health instrument according to claim 1, characterized in that: A base is provided on the lower side of the left shell and the right shell, and the base includes an upper shell and a lower shell. A positioning groove is formed on the upper shell, and the lower ends of the upper shell and the lower shell are inserted into the positioning groove accordingly. The lower shell is fixedly installed on the lower side of the upper shell, and several evenly arranged anti-slip pads are fixedly installed on the lower side of the lower shell.

5. The hydrogen-oxygen beauty and health instrument according to claim 1, characterized in that: A light strip is fixedly installed in the ventilation ring, and the lithium battery supplies power to the light strip through the PCB board.

6. The hydrogen-oxygen beauty and health instrument according to claim 1, characterized in that: A touch button is embedded and installed on the PCB board, a button hole is formed on the right shell, a button is installed in the button hole with clearance matching, the button is pressed on the touch button, a limit ring is formed on the outer side of the lower end of the button, and the limit ring is set on the inner side of the button hole.

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