A portable rinsing device

Abstract

The utility model provides a kind of portable flushing device, including the shell body being provided with containing space, be equipped with inlet tube on shell body, and shell body end is equipped with nozzle;Containing space is provided with spherical pump assembly, spherical pump assembly includes two or more spherical pump single body, the drive shaft of each spherical pump single body is connected with a motor respectively, the liquid inlet of each spherical pump single body is communicated with inlet tube, and the liquid outlet of each spherical pump single body is communicated with nozzle;Each motor is electrically connected with main controller;Each motor and main controller are electrically connected with power supply device;The utility model provides a kind of portable flushing device, small in size, light in weight, can be adjusted flushing flow by the number of spherical pump opening or closing according to the need of flushing, while the rotational speed of pump does not change when adjusting flushing flow, so high pulse flushing is always used, and cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of cleaning tools, and in particular to a portable rinsing device. Background Technology

[0002] Portable washing devices are widely used for cleaning vehicles and windows. Existing washing devices, such as car wash machines, mainly use plunger pumps. The plunger pump pressurizes water and sprays it onto the car's surface through a spray gun. Car washing generally involves four steps: first, spraying water from the spray gun to rinse the car's surface; second, spraying foam liquid (dishwashing liquid) onto the car's surface; third, wiping with the foam liquid; and fourth, rinsing again with the spray gun. Overall, the high pressure and high flow rate of the plunger pump, combined with wiping the surface with foam liquid, are needed to thoroughly clean mud, sand, and stains from the car.

[0003] However, when a plunger pump is used in the rinsing device, the large flow rate leads to significant water waste and high power consumption. It is generally suitable for indoor use or in places with sufficient water and power supply, but not for outdoor use. In addition, it is bulky and inconvenient to carry. On the other hand, practical and theoretical analysis have proven that high-frequency vibration impact of water flow can effectively improve the rinsing effect. However, existing plunger pumps generally have low speeds. Due to the limited response speed of the inlet and outlet valves, their speeds are generally below 1500 rpm or 2000 rpm. Because the speed is low, high-frequency impact cannot be achieved, which will greatly reduce the rinsing effect. If a high-speed motor is used to drive the plunger pump, a reducer needs to be added to connect to the plunger pump, which increases the number of parts, thereby increasing the manufacturing cost and size. Summary of the Invention

[0004] This utility model provides a portable rinsing device to solve the problems of existing rinsing devices having low rinsing frequency, poor cleaning effect, large flow rate and excessive water waste, and being unsuitable for use in outdoor water-scarce scenarios.

[0005] The technical solution of this utility model is: A portable rinsing device, comprising: The outer shell has a housing space inside, a liquid inlet pipe on the outer shell, and a nozzle for spraying liquid at the end of the outer shell. A spherical pump assembly is disposed within an accommodating space; the spherical pump assembly includes two or more spherical pump units, each spherical pump unit having a drive shaft connected to a motor, each spherical pump unit having an inlet connected to an inlet pipe, and each spherical pump unit having an outlet connected to a nozzle. The control unit includes a main controller, which is electrically connected to each motor. The power supply unit is electrically connected to both the motor and the main controller.

[0006] The nozzle is provided with multiple liquid outlet holes, and the liquid outlet of each spherical pump unit is connected to a liquid outlet hole through a liquid outlet connecting pipe set in the outer casing.

[0007] The control unit also includes a switch control unit for controlling the independent operation of each ball pump unit. The switch control unit is fixed on the housing and is electrically connected to the main controller, which is located inside the housing.

[0008] The aforementioned outer casing is also equipped with a foam tube, which is connected to the liquid inlet of a spherical pump unit. The spherical pump unit connected to the foam tube is referred to as the first spherical pump unit, and the remaining spherical pump units are referred to as the second spherical pump units. The liquid inlet of each second spherical pump unit is connected to the liquid inlet pipe.

[0009] The foam tube is detachably connected to the foam pot; the liquid inlet tube is connected to the water supply device via a connecting pipe.

[0010] The speed of the aforementioned motor is between 5000 r / min and 20000 r / min.

[0011] The aforementioned spherical pump unit includes a stator with a spherical inner cavity inside, and a spherical rotor inside the spherical inner cavity. The spherical outer circumference of the spherical rotor is adapted to the spherical inner cavity. The drive shaft of the spherical rotor extends from the bottom of the stator and is connected to the motor. The stator has an inlet and an outlet that communicate with the spherical inner cavity. The inlet on the stator is the inlet of the spherical pump unit, and the outlet on the stator is the outlet of the spherical pump unit. The spherical rotor includes a piston with a spherical top surface and a turntable with a spherical bottom surface. The piston, the turntable, and the inner wall of the spherical cavity together define two variable displacement cavities. The turntable drives the piston to rotate synchronously. When the turntable drives the piston to rotate, the volume of the two variable displacement cavities changes alternately.

[0012] The aforementioned stator includes: The cylinder head has a first hemispherical inner cavity at its lower part. The cylinder body has a second hemispherical inner cavity at the top, and the first and second hemispherical inner cavities cooperate to form a spherical inner cavity; the cylinder cover has an inlet and an outlet that communicate with the spherical inner cavity.

[0013] The spherical top surface of the piston is adapted to the spherical inner cavity to form a sealed dynamic fit; the piston has two side surfaces at a certain angle and piston pin seats protruding from the lower part of the two side surfaces, and a protruding slipper is provided in the center of the spherical top surface of the piston. The spherical bottom surface of the turntable is adapted to the spherical inner cavity and forms a sealed dynamic fit; a turntable pin seat adapted to the piston pin seat is provided in the center of the top surface of the turntable, and the piston pin seat and the turntable pin seat form a cylindrical hinge connection; a turntable shaft protrudes from the center of the spherical bottom surface at the lower end of the turntable, and the central axis of the turntable shaft passes through the center of the turntable. The turntable shaft is the drive shaft of the spherical pump unit. The stator has a rotating sleeve hole in its spherical inner cavity. The central axis of the rotating sleeve hole passes through the center of the spherical inner cavity, and the central axis of the rotating sleeve hole forms an angle with the central axis of the turntable shaft. A sliding shoe rotating sleeve is provided in the rotating sleeve hole to rotate with it. The lower end of the sliding shoe rotating sleeve is provided with a sliding groove. The sliding shoe at the piston end is placed in the sliding groove. The two parallel sides of the sliding shoe are in contact with the two sides of the sliding groove to form a sliding fit. The two parallel sides of the sliding shoe are symmetrically arranged on both sides of the axis of the sliding shoe rotating sleeve and are parallel to the central axis of the cylindrical hinge. When the spherical rotor rotates, the sliding shoe slides back and forth in the sliding groove, forming two variable cavities with alternating volumes between the upper end face of the turntable, the two sides of the piston, and the inner wall of the spherical inner cavity.

[0014] The aforementioned outer casing is a handheld structure; the power supply device is a portable power source or an external power source.

[0015] The beneficial effects of this utility model are: This utility model provides a portable rinsing device that uses a spherical pump with a high-frequency impact speed of 5000-20000 rpm. The rinsing flow rate can be adjusted according to the rinsing needs by turning the number of spherical pumps on or off. When adjusting the rinsing flow rate, the speed of the other spherical pumps does not change, thus maintaining a high speed and high pulse frequency rinsing, resulting in a good cleaning effect.

[0016] This utility model provides a portable rinsing device. Because the spherical pump itself can rotate at a very high speed, the motor driving the spherical pump also rotates at a correspondingly high speed. With a constant motor power, the high speed of the spherical pump motor results in a lower torque. Since the high-speed motor requires less torque, the overall size and weight can be reduced by reducing materials (such as thinner coils and smaller magnetic cores) to achieve the same power. At the same time, because the spherical pump unit is small in size and light in weight, the portable rinsing device containing multiple spherical pump units is also small in size and easy to carry.

[0017] This utility model provides a portable rinsing device that allows for adjustment of the number of ball pumps activated as needed during the rinsing process. The rinsing flow rate is adjustable, resulting in high rinsing efficiency and low water consumption. It is suitable for use in outdoor water-scarce scenarios, and a single bottle or a few bottles of water can be carried in the vehicle to complete the entire vehicle cleaning. Attached Figure Description

[0018] Figure 1 This is a side view of the portable rinsing device provided in Embodiment 1 of the present invention.

[0019] Figure 2 This is a perspective view of the portable rinsing device provided in Embodiment 1 of this utility model.

[0020] Figure 3 This is a side view of the connection between the spherical pump assembly and the motor in Embodiment 1 of this utility model.

[0021] Figure 4 for Figure 3 Schematic diagram of the AA section.

[0022] Figure 5 This is a schematic diagram of the piston structure in Embodiment 1 of this utility model.

[0023] Figure 6 This is a schematic diagram of the turntable in Embodiment 1 of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the sliding shoe rotating sleeve in Embodiment 1 of this utility model.

[0025] Figure 8 This is a schematic diagram of a foam pot connected to the outer shell in Embodiment 2 of this utility model.

[0026] Explanation of reference numerals in the attached figures: 1. Outer shell; 2. Inlet pipe; 3. Nozzle; 301. Outlet hole; 4. Motor; 5. Main controller; 6. Power supply device; 7. Switch control unit; 8. Drainage connecting pipe; 9. Inlet connecting pipe; 10. Cylinder head; 11. Cylinder body; 12. Piston; 1201. Piston pin seat; 1202. Slipper; 13. Turntable; 1301. Turntable pin seat; 1302. Turntable shaft; 14. Slipper sleeve; 1401. Slide groove; 15. Foam tube; 16. Foam pot. Detailed Implementation

[0027] The following is combined Figures 1 to 8 The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments. Example 1

[0028] Embodiment 1 of this utility model provides a portable rinsing device, such as... Figure 1 The diagram shown is a schematic representation of the overall structure of the portable rinsing device in Embodiment 1. A portable rinsing device includes a housing 1, a ball pump assembly, a control unit, and a power supply unit. The housing 1 has an accommodating space, and an inlet pipe 2 is fixedly mounted on the housing 1. The inlet pipe 2 is connected to an external water source through a water inlet pipe assembly. A nozzle 3 for spraying liquid is fixedly mounted at the end of the housing 1.

[0029] like Figure 2As shown, a spherical pump assembly is provided within the accommodating space of the outer casing 1. The spherical pump assembly includes two or more individual spherical pump units. The drive shaft of each individual spherical pump unit is connected to a motor 4. The inlet of each individual spherical pump unit is connected to an inlet pipe 2, and the outlet of each individual spherical pump unit is connected to a nozzle 3 for ejecting liquid. Figure 3 The diagram shown is a side view of the connection between the spherical pump assembly and the motor in this embodiment. Specifically, in this embodiment, the motor speed is between 5000 r / min and 20000 r / min, and the number of individual spherical pump units is preferably four.

[0030] In this embodiment, the outer casing 1 is a handheld structure, and a main controller 5 is also provided within the accommodating space of the outer casing 1. The main controller 5 is electrically connected to each motor 4. A power supply device 6 is fixedly mounted on the outer casing 1 and is electrically connected to both the motor 4 and the main controller 5. The power supply device 6 is a portable power source or an external power source; when the power supply device 6 is a portable power source, it is fixedly mounted at the bottom of the outer casing 1, and the portable power source is preferably a rechargeable lithium battery; when the power supply device 6 is an external power source, the motor 4 and the main controller 5 are plugged into an external power source.

[0031] It should be further explained that the control unit also includes a switch control unit 7, which is fixedly mounted on the outer surface of the handle of the housing 1 for controlling the independent operation of each ball pump unit. The switch control unit 7 is electrically connected to the main controller 5.

[0032] Preferably, the nozzle 3 is provided with a plurality of liquid outlet holes 301, and the liquid outlet of each spherical pump unit is connected to a liquid outlet hole 301 through a liquid outlet connecting pipe 8 provided in the outer shell 1; the inlet pipe 2 is provided with a plurality of liquid inlet holes, and the liquid inlet of each spherical pump unit is connected to a liquid inlet hole through an inlet connecting pipe 9 provided in the outer shell 1.

[0033] The portable rinsing device provided in this embodiment is used by holding the device and connecting the inlet pipe 2 to an external water source through the water inlet pipe assembly. If the power supply device 6 is an external power source fixed to the bottom of the outer casing 1, it does not need to be connected to an external power source. The start signal is sent to the main controller 5 through the switch control unit 7. The main controller 5 controls the motor 4 of the spherical pump unit to be started. The output shaft of the motor 4 drives the drive shaft of the spherical pump unit to rotate. After the spherical pump starts, it draws water into the inlet pipe 2 through the water inlet pipe assembly. The water in the inlet pipe 2 enters the spherical pump through the inlet connecting pipe 9 and the spherical pump inlet. Since the spherical pump has a rotation speed of 5000-20000 rpm, the water discharged through the spherical pump outlet is sprayed out through the outlet hole on the nozzle 3 through the outlet connecting pipe 8. The liquid sprayed from the nozzle 3 performs high-frequency rinsing on the cleaned parts, resulting in a good cleaning effect.

[0034] During operation, the number of ball pumps activated is determined according to the rinsing needs to adjust the rinsing flow rate. While adjusting the rinsing flow rate, the rotation speed of the remaining ball pumps remains unchanged. This allows for high-speed, high-pulse-frequency rinsing while adjusting the rinsing flow rate, resulting in good cleaning performance. Furthermore, the high-pulse-frequency rinsing uses less water, making it suitable for outdoor use in water-scarce scenarios. A single bucket of water can be carried in the vehicle to complete the entire vehicle cleaning.

[0035] In this embodiment, as Figure 4 The diagram shows a cross-sectional view of the connection between the spherical pump assembly and the motor. The spherical pump unit includes a stator, which includes a cylinder head 10 and a cylinder body 11. The lower part of the cylinder head 10 has a first hemispherical inner cavity, and the upper part of the cylinder body 11 has a second hemispherical inner cavity. The first and second hemispherical inner cavities cooperate to form a spherical inner cavity. The cylinder head 10 has an inlet and an outlet that communicate with the spherical inner cavity.

[0036] A spherical rotor is housed within the spherical inner cavity. The spherical rotor includes a piston 12, a turntable 13, and a sliding shoe sleeve 14. For example... Figure 5 The diagram shows the structure of piston 12. Piston 12 has a spherical top surface, which fits into the spherical inner cavity to form a sealing dynamic fit. Piston 12 has two side surfaces at a certain angle and piston pin seats 1201 protruding from the lower part of the two side surfaces. A protruding slipper 1202 is provided in the center of the spherical top surface of piston 12. Figure 6 The diagram shows the structure of the turntable 13. The turntable 13 has a spherical bottom surface, which is adapted to the spherical inner cavity and forms a sealed dynamic fit. A turntable pin seat 1301 adapted to the piston pin seat 1201 is provided at the center of the top surface of the turntable 13. The piston pin seat 1201 and the turntable pin seat 1301 form a cylindrical hinge connection. A turntable shaft 1302 protrudes from the center of the spherical bottom surface at the lower end of the turntable 13. The central axis of the turntable shaft 1302 passes through the center of the sphere of the turntable 13. The turntable shaft 1302 is the drive shaft of the spherical pump unit.

[0037] A rotating sleeve hole is provided on the first hemispherical inner cavity of the cylinder head 10. The central axis of the rotating sleeve hole passes through the center of the spherical inner cavity, and the central axis of the rotating sleeve hole forms an angle with the central axis of the turntable shaft 1302. A sliding shoe rotating sleeve 14 is provided in the rotating sleeve hole to rotate with it. The lower end of the sliding shoe rotating sleeve 14 is provided with a sliding groove 1401. The sliding shoe 1202 at the end of the piston 12 is placed in the sliding groove 1401. The two parallel sides of the sliding shoe 1202 are in contact with the two sides of the sliding groove 1401 to form a sliding fit. The two parallel sides of the sliding shoe 1202 are symmetrically arranged on both sides of the axis of the sliding shoe rotating sleeve 14 and are parallel to the central axis of the cylindrical hinge. When the spherical rotor rotates, the sliding shoe 1202 slides back and forth in the sliding groove 1401, and the upper end face of the turntable 13, the two sides of the piston 12 and the inner wall of the spherical inner cavity jointly define two variable cavities with alternating volumes. When the turntable 13 drives the piston 12 to rotate, the volumes of the two variable cavities change alternately.

[0038] The turntable shaft 1302 extends from the lower part of the stator and is connected to the motor 4; the cylinder cover 10 is provided with an inlet and a outlet that communicate with the spherical inner cavity. The inlet on the cylinder cover 10 is the inlet of the spherical pump unit, and the outlet on the cylinder cover 10 is the outlet of the spherical pump unit.

[0039] It should be noted that the cylindrical hinge in this embodiment can be either a C-type cylindrical hinge connection or a center pin cylindrical hinge connection. Figure 4 The schematic diagram shows the structure of the piston 12 and the turntable 13 connected by a C-shaped cylindrical hinge. The piston pin seat 1201 is a protruding semi-cylindrical structure with spherical ends. The turntable pin seat 1301 is a semi-cylindrical hole structure recessed into the upper end face of the turntable 13. The axis of the semi-cylindrical hole of the turntable pin seat 1301 is parallel to the two sides parallel to the slipper 1202. The turntable pin seat 1301 and the piston pin seat 1201 are matched. The protruding semi-cylindrical part of the piston pin seat 1201 is inserted into the semi-cylindrical hole of the turntable pin seat 1301 to form a C-shaped cylindrical hinge connection. A sealed dynamic fit is formed between the mating surfaces of the C-shaped cylindrical hinge connection.

[0040] It should be noted that the center pin cylindrical hinge connection is existing technology. The specific structure of the center pin cylindrical hinge connection has been disclosed in the patent entitled "A Composite Spherical Pump" with application number 202411566066.7, and will not be repeated here. Example 2

[0041] Embodiment 2 of this utility model provides a portable rinsing device. The only difference from Embodiment 1 is that, in this embodiment, a foam tube 15 is also provided on the outer shell 1. The foam tube 15 is connected to the liquid inlet of a spherical pump unit. The spherical pump unit connected to the foam tube 15 is referred to as the first spherical pump unit, and the remaining spherical pump units are referred to as the second spherical pump units. The liquid inlet of each second spherical pump unit is connected to the liquid inlet pipe 2.

[0042] When cleaning the vehicle surface, spraying foam liquid on the vehicle surface can remove stains more quickly. Therefore, in this embodiment, the foam tube 15 and the foam pot 16 are detachably connected. Specifically, the detachable connection method can be a threaded connection. Threading the foam pot to the foam tube makes it easy to replace the foam liquid in the foam pot.

[0043] Since a small amount of foam liquid is sufficient for cleaning the entire vehicle, the foam tube 15 is connected to the inlet of a single spherical pump unit, meaning that the foam liquid can be sprayed using only one spherical pump unit. When foam liquid needs to be sprayed, the first spherical pump unit connected to the foam tube 15 is activated via the switch control unit. After activation, the foam liquid is drawn from the foam container 16 into the first spherical pump unit, and the foam liquid discharged through the outlet of the first spherical pump unit is sprayed out from the outlet hole on the nozzle 3. The foam liquid sprayed from the nozzle 3 provides high-frequency rinsing to the cleaned area, resulting in good stain removal. When water needs to be sprayed after the foam liquid has been sprayed, the second spherical pump unit connected to the inlet tube 2 is activated via the switch control unit 7. The water intake and spraying process of the second spherical pump unit is the same as in Example 1. The structures of the first and second spherical pump units are the same as those of the spherical pump unit in Example 1, and will not be described again here.

[0044] In summary, this utility model provides a portable rinsing device that uses a ball pump with a high-frequency impact speed of 5000-20000 rpm, solving the problems of low rinsing frequency and poor cleaning effect of existing rinsing devices. Furthermore, the number of ball pumps that can be turned on can be adjusted at any time during the cleaning process, the rinsing flow rate is adjustable, the cleaning efficiency is high, the water consumption is low, and the device is small in size and easy to carry, making it suitable for use in outdoor water-scarce scenarios.

Claims

1. A portable rinsing device, characterized in that, include: The outer casing has a housing space inside, a liquid inlet pipe on the outer casing, and a nozzle for spraying liquid at the end of the outer casing. A spherical pump assembly is disposed within an accommodating space; the spherical pump assembly includes two or more spherical pump units, the drive shaft of each spherical pump unit is connected to a motor, the inlet of each spherical pump unit is connected to the inlet pipe, and the outlet of each spherical pump unit is connected to the nozzle; A control unit, the control unit including a main controller, the main controller being electrically connected to each of the motors; A power supply device is electrically connected to both the motor and the main controller.

2. The portable rinsing device as described in claim 1, characterized in that, The nozzle is provided with multiple liquid outlet holes, and the liquid outlet of each spherical pump unit is connected to a liquid outlet hole through a liquid outlet connecting pipe disposed in the outer shell.

3. The portable rinsing device as described in claim 1, characterized in that, The control unit also includes a switch control unit for controlling the independent operation of each ball pump unit. The switch control unit is fixed on the housing and is electrically connected to the main controller, which is located inside the housing.

4. The portable rinsing device as described in claim 1, characterized in that, The outer casing is also provided with a foam tube, which is connected to the liquid inlet of one of the spherical pump units. The spherical pump unit connected to the foam tube is referred to as the first spherical pump unit, and the remaining spherical pump units are referred to as the second spherical pump units. The liquid inlet of each second spherical pump unit is connected to the liquid inlet tube.

5. The portable rinsing device as described in claim 4, characterized in that, The foam tube is detachably connected to the foam pot; the liquid inlet tube is connected to the water supply device via a connecting pipe.

6. The portable rinsing device as claimed in claim 1, characterized in that, The motor speed is between 5000 r / min and 20000 r / min.

7. The portable rinsing device as claimed in claim 1, characterized in that, The spherical pump unit includes a stator with a spherical inner cavity inside. A spherical rotor is housed within the spherical inner cavity, and the spherical outer circumferential surface of the spherical rotor is adapted to the spherical inner cavity. The drive shaft of the spherical rotor extends from the lower part of the stator and is connected to the motor. The stator has an inlet and an outlet that communicate with the spherical inner cavity. The inlet on the stator is the inlet of the spherical pump unit, and the outlet on the stator is the outlet of the spherical pump unit. The spherical rotor includes a piston with a spherical top surface and a turntable with a spherical bottom surface. The piston, the turntable, and the inner wall of the spherical inner cavity together define two variable-capacity cavities. The turntable drives the piston to rotate synchronously. When the turntable drives the piston to rotate, the volume of the two variable-capacity cavities changes alternately.

8. The portable rinsing device as claimed in claim 7, characterized in that, The stator includes: The cylinder head has a first hemispherical inner cavity at its lower part. The cylinder body has a second hemispherical inner cavity at its upper part, and the first hemispherical inner cavity and the second hemispherical inner cavity cooperate to form a spherical inner cavity; the cylinder cover has an inlet and an outlet that communicate with the spherical inner cavity.

9. The portable rinsing device as claimed in claim 7, characterized in that, The spherical top surface of the piston is adapted to the spherical inner cavity to form a sealing dynamic fit; the piston has two side surfaces at a certain angle and piston pin seats protruding from the lower part of the two side surfaces, and a protruding slipper is provided in the center of the spherical top surface of the piston. The spherical bottom surface of the turntable is adapted to the spherical inner cavity and forms a sealed dynamic fit; a turntable pin seat adapted to the piston pin seat is provided in the center of the top surface of the turntable, and the piston pin seat and the turntable pin seat form a cylindrical hinge connection; a turntable shaft protrudes from the center of the spherical bottom surface at the lower end of the turntable, and the central axis of the turntable shaft passes through the center of the turntable. The turntable shaft is the drive shaft of the spherical pump unit. The stator has a rotating sleeve hole in its spherical inner cavity. The central axis of the rotating sleeve hole passes through the center of the spherical inner cavity, and the central axis of the rotating sleeve hole forms an angle with the central axis of the turntable shaft. A sliding shoe rotating sleeve is provided in the rotating sleeve hole to rotate with it. The lower end of the sliding shoe rotating sleeve is provided with a sliding groove. The sliding shoe at the piston end is placed in the sliding groove. The two parallel sides of the sliding shoe are in contact with the two sides of the sliding groove to form a sliding fit. The two parallel sides of the sliding shoe are symmetrically arranged on both sides of the axis of the sliding shoe rotating sleeve and are parallel to the central axis of the cylindrical hinge. When the spherical rotor rotates, the sliding shoe slides back and forth in the sliding groove, forming two variable-volume cavities with alternating volumes between the upper end face of the turntable, the two sides of the piston, and the inner wall of the spherical inner cavity.

10. The portable rinsing device as claimed in claim 1, characterized in that, The outer casing is a handheld structure; the power supply device is a portable power source or an external power source.

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