Water pick with stepless speed change and pressure regulation functions

Abstract

The utility model discloses an oral irrigator with stepless speed change and pressure regulation function, which comprises a main body shell, an oral irrigator water pump, a main control PCB (printed circuit board) and a panel component, the panel component comprises a panel, an encoder, a rotating shaft and a roller, the panel component is fixed on the main body shell, the oral irrigator water pump is assembled in the main body shell, and the main control PCB is arranged on the main body shell. The encoder is fixedly installed on the inner side face of the panel, the rotating shaft penetrates through the rolling wheel and is fixedly connected with the rolling wheel, one end of the rotating shaft is connected with the encoder, the rolling wheel is rotated left and right to drive the interior of the encoder to rotate for control and adjustment, and stepless speed change control over the water pressure of a water pump of the die punching device is achieved. According to the utility model, the panel assembly is provided with the encoder with a stepless speed change pressure regulating function; the rotating roller in the design is used for regulating the water pressure by rotating fingers left and right when the oral irrigator is held by a hand; the method is more suitable for ergonomics; in addition, a consumer can more accurately match the gear force suitable for the consumer, the tooth washing experience comfort degree is improved, the number of assemblies is small, assembling is easy, the occupied size is small, and the portable tooth washing device is suitable for a small-size portable tooth washing device.

Description

Technical Field

[0001] The utility model relates to the technical field of water flossers, in particular to a water flosser with stepless speed change and pressure regulation function. Background Art

[0002] Traditional water flossers have only a few preset water pressure levels, and users can only choose three or several of them. Different consumers have different user experiences during the process of rinsing their teeth. Simply limiting the selection of three levels of water pressure cannot maximize the cleaning effect. Some existing continuously variable water flossers, such as patent 201922283380.5, disclose a stepless water pressure regulating device and a water flosser. The stepless pressure regulating module of the water flosser has many components, a complex structure, a high assembly cost, and a large occupied volume. It is only suitable for installation on some water flossers with relatively large bodies. For small and portable water flossers, this structure is relatively large and difficult to install on a small-bodied water flosser. Therefore, it is necessary to develop a continuously variable pressure regulating device for a small-bodied water flosser. Utility Model Content

[0003] Technical issues solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a water flosser with a stepless speed-changing and pressure-regulating function.

[0005] Technical Solution

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water flosser with a stepless speed-changing pressure-regulating function comprises a main body shell, a water pump for the water flosser, a main control PCB board and a panel assembly, wherein the panel assembly comprises a panel, an encoder, a rotating shaft and a roller, wherein the panel assembly is fixed on the main body shell, the water pump for the water flosser is assembled inside the main body shell, the encoder is fixedly mounted on the inner side of the panel, the rotating shaft passes through the roller and is fixedly connected to the roller, one end of the rotating shaft is connected to the encoder, and the encoder is controlled and regulated by rotating the rotating roller left and right to drive the internal rotation of the encoder, thereby realizing stepless speed-changing regulation of the water pressure of the water pump for the water flosser, and the main control PCB board is assembled on one side of the water pump for the water flosser.

[0008] More specifically, two arc bosses are opened in the middle of the front side of the panel, symmetrical step holes are arranged on the inner sides of the two arc bosses, waterproof soft rubber pads are installed in the step holes, and a step shape is arranged on the outer side of the waterproof soft rubber pads, and the waterproof soft rubber pads are interference fit with the step holes.

[0009] More specifically, the encoder is installed in a corresponding slot on the inner side of the panel and is tightly fixed. It is electrically connected to the main control PCB board through electronic wires. There is a regular hexagonal hole in the middle of the encoder. The rotating shaft passes through the waterproof soft rubber pad, the roller and the encoder, forming the roller and the encoder into a linked whole.

[0010] More specifically, one end of the rotating shaft is a cylindrical end, and the other end is a regular hexagonal end. The cylindrical end is connected to the roller by interference fit, and the regular hexagonal end is inserted into the encoder hole. The rotating shaft is rotatably installed in the panel hole.

[0011] More specifically, two circles of bosses are arranged inside the hole of the waterproof soft rubber pad, and the two circles of bosses are interference fit with the rotating shaft.

[0012] More specifically, the encoder is replaced by a potentiometer, an ultrasonic line is provided on the panel, a slot is provided on the main body shell, and the panel is fixedly connected to the main body shell by ultrasonic welding.

[0013] The present application also provides a water flosser circuit, which includes: a charging module, a central control module, a motor drive module, a gear force adjustment module, and an ultraviolet disinfection module. The charging module supplies power to the circuit, and the charging module receives input from an external power source through a CON2 interface. The CON2 interface is electrically connected to the pin VCC of the chip U3 through a diode D8. The diode D8 is connected in parallel with a capacitor C6. The pin PROG of the chip U3 is connected in series with a resistor R13 and then grounded. The pin BAT of the chip U3 is electrically connected to capacitor C10, capacitor C11, capacitor C12, relay KP1, capacitor C1 and a battery. The other end of the relay KP1 is connected in series with the battery and then grounded. The capacitors C10, C11, C12 and C1 are connected in parallel with each other.

[0014] More specifically, the central control module uses a 4.2V voltage supplied by the battery to power the chip U2 through a resistor R2. The chip U2 is turned on and off by a switch S1. The chip U2 is electrically connected to indicator lights LED1, D1, D2, and D3 through pins. Pin 14 of the chip U2 is connected in series with resistors R12 and R14 and then grounded. The connecting end of the resistor R12 and resistor R14 is connected to the battery through a resistor R15. The resistor R12 is connected in series with resistor R14 and then connected in parallel with capacitor C4. Pin 3 and pin 9 of the chip U2 are electrically connected to the B end and A end of the gear force adjustment knob VR1 through S3 and S2, respectively. The B end and A end of the gear force adjustment knob VR1 are also electrically connected to resistors R25 and R26, respectively.

[0015] More specifically, the motor drive module is composed of a chip Q4, a motor, a capacitor C5, a diode D4, a resistor R7, a resistor R8, a resistor R10, a resistor R11, a resistor R17, and a capacitor C3. The resistor R10 is connected in series with the capacitor C3 and then connected in parallel with the resistor R11 and the resistor R17. The capacitor C5 and the diode D4 form a motor interference elimination circuit.

[0016] More specifically, the ultraviolet disinfection module is turned on for disinfection by long pressing the switch S1. The chip U2 sends an instruction to turn on the power of the ultraviolet disinfection module through the resistor R23, the resistor R22, and the field effect transistor Q3. The power is supplied to the chip U1, the inductor L1, the diode D11, the resistor R19, and the capacitor C2 to drive the UV lamp for disinfection. The light-emitting diode D5 and the light-emitting diode D6 form a UV lamp. The UV lamp adjusts the disinfection power through the current-limiting resistors R6 and R9. The chip U1 adjusts the output voltage through the resistor R16 and the resistor R20.

[0017] Beneficial effects:

[0018] The panel assembly of the utility model is provided with an encoder / potentiometer for the stepless speed-changing voltage regulation function. By adopting the above-mentioned encoder / potentiometer, the encoder / potentiometer can be controlled by the main control PCB board to perform stepless speed-changing voltage regulation to control the strength of the water pump of the water flosser. By simply turning the knob left and right, consumers can more accurately match the strength of the gear that suits them and enhance the comfort of the water flossing experience. The panel assembly of the water flosser is relatively small, the assembly is simple, and the volume occupied is also small. It is more suitable for portable small-volume water flossers. The designed punch circuit can effectively monitor the battery voltage and realize multi-speed strength adjustment. The water flosser circuit realizes the disinfection function by setting an ultraviolet disinfection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation structure of the panel assembly of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a partial cross-sectional view of the utility model;

[0022] Figure 4 is a cross-sectional view of a panel assembly;

[0023] Figure 5 It is a structural schematic diagram of the panel assembly;

[0024] Figure 6 It is a schematic diagram of the structure of the rotating shaft and the inner side of the panel;

[0025] Figure 7 This is the circuit diagram of the charging module;

[0026] Figure 8 This is the circuit diagram of the central control module;

[0027] Fig. 9 This is the circuit diagram of the motor drive module;

[0028] Fig.10 Circuit diagram of the gear force adjustment module

[0029] Fig.11 This is the circuit diagram of the ultraviolet disinfection module. DETAILED DESCRIPTION

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

[0031] See also Figure 1-2 As shown, the utility model provides a technical solution: a water flosser with a stepless speed-changing pressure-regulating function, comprising a main body shell 1, a water flosser pump 2, a main control PCB board 3 and a panel assembly 4, wherein the panel assembly 4 comprises a panel 41, an encoder 42, a rotating shaft 43 and a roller 44, wherein the panel assembly 4 is fixed on the main body shell 1, the water flosser pump 2 is assembled inside the main body shell 1, the encoder 42 is fixedly mounted on the inner side of the panel 41, the rotating shaft 43 passes through the roller 44 and is fixedly connected to the roller 44, one end of the rotating shaft 43 is connected to the encoder 42, and the encoder 42 is driven to rotate internally by rotating the rotating roller 44 left and right to control and adjust, thereby realizing stepless speed-changing control of the water pressure of the water flosser pump, wherein the main control PCB board 3 is assembled on one side of the water flosser pump 2, and when flushing teeth, the roller 44 is moved by fingers to adjust the water pressure to a comfortable state;

[0032] Two hemispherical slots 411 are provided in the middle of the front side of the panel 41, and symmetrical step holes 412 are provided inside the two hemispherical slots 411. A waterproof soft rubber pad 45 is installed in the step hole 412. Three steps are provided on the outside of the waterproof soft rubber pad 45. The waterproof soft rubber pad 45 is interference fit with the step hole. Through the waterproof effect of the waterproof soft rubber pad 45, it is difficult for water to enter the main control PCB board 3 through the gap between the roller 44 and the rotating shaft 43, which plays a better protective role on the circuit part.

[0033] The encoder 42 is installed on the slot 421 on the inner side of the panel and is electrically connected to the main control PCB board 3 through an electronic wire. There is a regular hexagonal hole in the middle of the encoder 42. The rotating shaft 43 passes through the waterproof soft rubber pad 45, the roller 44 and the encoder 42, and the roller 44 and the encoder 42 form a linked whole. In this way, when the roller 44 rotates, it will drive the rotating shaft 43 fixedly connected to it to rotate synchronously. When the rotating shaft 43 rotates, one end of which is a regular hexagonal end 432, it will drive the encoder to rotate.

[0034] One end of the rotating shaft 43 is a cylindrical end 431, and the other end is a regular hexagonal end 432. The cylindrical end 431 is interference fit with the roller 44, and the regular hexagonal end 432 is inserted into the hole of the encoder 42. The rotating shaft 43 is rotatably installed in the hole of the panel. The rotating shaft 43 mainly plays the role of supporting the roller. Moving the roller left and right will drive the rotating shaft to rotate synchronously, thereby controlling the encoder.

[0035] Two circles of bosses 451 are arranged inside the hole of the waterproof soft rubber pad 45. The two circles of bosses 451 are interference fit with the rotating shaft 43, and the two circles of bosses 451 also play a waterproof role.

[0036] The panel 41 is provided with an ultrasonic line 413 , the main body shell 1 is provided with a slot, and the panel 41 is fixedly connected to the main body shell 1 by ultrasonic welding.

[0037] Another embodiment of the present application provides a water flosser circuit, which includes: a charging module, a central control module, a motor drive module, a gear force adjustment module, and an ultraviolet disinfection module.

[0038] Specifically, in the charging module, the external power supply supplies power to the chip U3 through the CON2 interface via the diode D8. The chip U3 cooperates with the resistor R3, the capacitor C10, and the capacitor C11 to control the battery charging. When the battery is fully charged to 4.2V, the chip U3 automatically turns off the charging.

[0039] Specifically, in the central control module, the 4.2V battery voltage supplies power to the chip U2 through the resistor R2, and the switch S1 controls the power on and off of the chip U2. After the power is turned on, the chip U2 lights up the light-emitting diodes LED1, D1, D2, and D3 according to the instructions to indicate the functions. The resistors R15, R14, R12, and capacitor C4 form a battery voltage monitoring circuit.

[0040] Specifically, in the motor driving module, the chip U2 provides a signal through the resistor R10, the capacitor C3, the resistor R11, and the resistor R17 to the chip Q4 to drive the motor to rotate. The capacitor C5 and the diode D4 form a motor interference elimination circuit.

[0041] Specifically, in the gear force adjustment module, VR1 is the gear force adjustment knob. The power supply gives the gear force adjustment knob a high potential through resistors R25 and R26. After turning the knob, a starting signal is obtained. The signal is connected to chip U2 through S2 and S3 to judge the strength at that time.

[0042] Specifically, the ultraviolet disinfection module is turned on by long pressing the switch S1. The chip U2 sends a command to turn on the power of the ultraviolet disinfection module through the resistor R23, the resistor R22, and the field effect transistor Q3. The power is supplied to the chip U1, the inductor L1, the diode D11, the resistor R19, and the capacitor C2 to drive the UV lamp for disinfection. The light-emitting diode D5 and the light-emitting diode D6 form a UV lamp. The UV lamp adjusts the disinfection power through the current-limiting resistors R6 and R9. The chip U1 adjusts the output voltage through the resistor R16 and the resistor R20.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water flosser with stepless speed and pressure regulation function, characterized in that: It includes a main body shell, a water pump for the oral irrigator, a main control PCB board and a panel assembly. The panel assembly includes a panel, an encoder, a rotating shaft and a roller. The panel assembly is fixed on the main body shell. The water pump for the oral irrigator is assembled inside the main body shell. The encoder is fixedly installed on the inner side of the panel. The rotating shaft passes through the roller and is fixedly connected to the roller. One end of the rotating shaft is connected to the encoder. The encoder is driven to rotate internally by rotating the rotating roller left and right to control and adjust, thereby realizing stepless speed regulation of the water pressure of the water pump for the oral irrigator. The main control PCB board is assembled on one side of the water pump for the oral irrigator.

2. The water flosser with stepless speed and pressure regulation function according to claim 1, characterized in that: Two arc bosses are provided in the middle of the front of the panel, symmetrical step holes are provided inside the two arc bosses, waterproof soft rubber pads are installed in the step holes, and a step shape is provided on the outside of the waterproof soft rubber pads, and the waterproof soft rubber pads are interference fit with the step holes.

3. The water flosser with stepless speed and pressure regulation function according to claim 1, characterized in that: The encoder is installed in the corresponding slot on the inner side of the panel and is tightly fixed. It is electrically connected to the main control PCB board through electronic wires. There is a regular hexagonal hole in the middle of the encoder. The rotating shaft passes through the waterproof soft rubber pad, the roller and the encoder, forming the roller and the encoder into a linked whole.

4. The water flosser with stepless speed and pressure regulation function according to claim 1, characterized in that: One end of the rotating shaft is a cylindrical end, and the other end is a regular hexagonal end. The cylindrical end is connected to the roller by interference fit, and the regular hexagonal end is inserted into the encoder hole. The rotating shaft is rotatably installed in the panel hole.

5. The water flosser with stepless speed-changing and pressure-regulating function according to claim 4, characterized in that: Two circles of bosses are arranged inside the hole of the waterproof soft rubber pad, and the two circles of bosses are interference fit with the rotating shaft.

6. The water flosser with stepless speed and pressure regulation function according to claim 1, characterized in that: The encoder is replaced by a potentiometer, an ultrasonic line is arranged on the panel, a slot is opened on the main body shell, and the panel is fixedly connected to the main body shell by ultrasonic welding.

Images