Knob mist adjusting nozzle and water-light instrument

Abstract

The rotary knob mist adjusting nozzle comprises a nozzle assembly which is provided with a spraying opening for spraying atomized liquid and further comprises a blocking needle capable of axially moving in the spraying opening; the absolute value encoder is coaxially arranged on the periphery of the nozzle assembly in a sleeving mode, and the rotation angle of the absolute value encoder around the axis of the absolute value encoder is electrically associated with the axial movement of the plugging needle; and the knob assembly is used for finger contact, the knob assembly and the nozzle assembly are coaxially assembled, and the knob assembly drives the absolute value encoder to rotate around the axis of the absolute value encoder. In this way, the absolute value encoder coaxial with the nozzle enables the structure to be more compact, and adjustment operation can be conveniently conducted through the rotary knob.

Description

Technical Field

[0001] The utility model relates to the field of beauty instruments, in particular to a knob-adjustable mist nozzle and a water light instrument. Background Art

[0002] The main principle of the water light instrument is to use the nozzle to spray a certain amount of water mist to introduce water vapor into the skin surface. Through high-frequency vibration, the dirt in the pores is vibrated and loosened, and then the cleanser and nutrients are injected into the deep layer of the skin, thus achieving the purpose of beauty care.

[0003] As for the nozzle adjustment method, most similar products on the market currently do not have the adjustment function, or are limited to simple manual mechanical adjustment. A basic structure of most existing designs is limited to different nozzle diameters, which in turn leads to different spray volumes.

[0004] The Chinese utility model patent with the announcement number "CN217988152U" discloses "an atomization device and a water light instrument with automatic adjustment of the spray aperture". This utility model patent achieves the effect of clearing the blockage and cleaning the spray port through the forward and backward movement of the blocking needle, and to a certain extent solves the problem of adjusting the size of the atomization spray aperture of the instrument and thus adjusting the size of the liquid particles sprayed out of the spray. By pressing the button to select different gears, the motor movement drives the mechanism to control the movement of the blocking needle to achieve the purpose of adjusting the aperture size. Specifically, long press the first button to enter the power-on mode, and then press the second button, the air pump enters the working state, and the sprayer sprays the corresponding particle size. By pressing the first button to select different gears, see paragraph 0017 of CN217988152U, the motor movement drives the mechanism to control the backward movement of the blocking needle to achieve the purpose of adjusting the aperture size. However, these two buttons are located on the body shell and need to be operated separately. There may be room for improvement in the ergonomic effect and the fine-tuning effect of the spray particles. Utility Model Content

[0005] This application is made in view of the above-mentioned state of the prior art. The purpose of this application is to provide a knob mist regulating nozzle and a water light instrument.

[0006] The technical solution adopted by the present application to solve its technical problems is: a knob-adjusted mist nozzle, comprising: a nozzle assembly, which has a nozzle for spraying atomized liquid, and the nozzle assembly also includes a blocking needle that can move axially at the nozzle; an absolute value encoder, which is coaxially sleeved on the periphery of the nozzle assembly, and the rotation angle of the absolute value encoder around its own axis is electrically linked to the axial movement of the blocking needle; a knob assembly for finger contact, the knob assembly is coaxially assembled with the nozzle assembly, and the knob assembly drives the absolute value encoder to rotate around the axis of the absolute value encoder.

[0007] As a further improvement of the present application, the nozzle assembly includes a screw member and a nut member which are movably assembled with each other, one end of the screw member is equipped with a circular gear, and the other end of the screw member is the blocking needle; a reduction motor is also arranged in parallel outside the nozzle assembly, the reduction motor meshes with the circular gear through a gear and drives the screw member to move axially, and the absolute encoder is connected to the reduction motor with an electrical signal; a Hall plate is provided outside the circular gear for sensing the rotation of the circular gear.

[0008] As a further improvement of the present application, the absolute value encoder includes an annular box and a tubular member, the annular box has an annular wrapping groove, and the annular wrapping groove accommodates an annular code disk; the tubular member includes a radial flange located in the annular wrapping groove and an axial tube located outside the annular wrapping groove; the annular code disk converts the rotational physical quantity of the radial flange relative to the annular code disk into a digital signal.

[0009] As a further improvement of the present application, the absolute value encoder also includes an annular cover plate and a shrapnel ring; the shrapnel ring is relatively fixed to the annular box, the knob assembly and the axial tube are assembled with each other and have synchronized rotational freedom; the annular cover plate covers the opening of the annular wrapping groove; the shrapnel ring is provided with a convex arch portion, and the radial flange has a plurality of axial grooves in an annular array, and the convex arch portion can selectively contact the axial groove; the radial flange is located between the annular code disk and the shrapnel ring.

[0010] As a further improvement of the present application, the outer wall of the axial tube has a radial boss and an axial convex hook, the inner wall of the knob assembly has an inner notch and an outer notch, the openings of the inner notch and the outer notch are respectively connected with the axial ends of the knob assembly, the radial boss and the inner notch realize concave-convex positioning, and the axial convex hook and the outer notch realize snap-fit; the annular box has a radial hole connected with the annular wrapping groove, and the annular code disk has a wiring terminal which protrudes radially outward and passes through the radial hole.

[0011] As a further improvement of the present application, the knob assembly includes an outer twist ring and an inner twist ring which are coaxial with each other. The outer twist ring and the inner twist ring are respectively provided with a through hole and a protrusion. The through hole and the protrusion are assembled with each other, and the outer twist ring is for finger contact.

[0012] As a further improvement of the present application, a nozzle decorative cover is further provided between the knob assembly and the nozzle assembly, and the nozzle decorative cover includes an integrated annular plate and an insert tongue, and the annular plate covers the radial space between the inner ring of the knob assembly and the outer ring of the nozzle assembly; the insert tongue extends axially, and the inner ring of the annular box is protruded with a buckle, and the insert tongue is provided with a groove that is mutually engaged with the buckle.

[0013] As a further improvement of the present application, the side wall of the nozzle assembly has an air inlet hole and a liquid inlet hole which pass through the side wall, and the axial distance from the air inlet hole to the nozzle outlet is shorter than the axial distance from the liquid inlet hole to the nozzle outlet; the nozzle assembly also includes a conical cover sleeved on the screw rod, the inner wall of the conical cover can contact the liquid injected into the liquid inlet hole, and the outer wall of the conical cover can contact the gas injected into the air inlet hole.

[0014] A water light instrument, comprising a knob mist regulating nozzle as described in any one of the above items.

[0015] As a further improvement of the present application, it also includes: a shell, the absolute encoder is wrapped by the shell, and the knob assembly is partially located outside the shell; an air pump, which is connected to the nozzle assembly; a battery; a printed circuit board, the absolute encoder, the Hall plate, the reduction motor and the printed circuit board are connected to electrical signals, and the printed circuit board is also connected to a button installed on the shell.

[0016] The present application utilizes a knob assembly and an absolute value encoder to form a ring-shaped button, which is arranged on the outer ring of the nozzle assembly. First, compared with the single button that is independent and far away from the nozzle assembly in the prior art, the knob assembly and the absolute value encoder are coaxially arranged with the nozzle, and the absolute value encoder itself happens to have a central hole structure for the nozzle assembly to pass through. This layout design makes the structure more compact, and the button used to control the nozzle assembly is closer to the nozzle assembly. This design module is applied to various small household appliances, which is also convenient for users to operate intuitively and improves the ergonomic effect. Secondly, compared with the buttons that only have a pressing function in the prior art, the present application utilizes a knob assembly to drive the absolute value encoder, and utilizes the rotation of the absolute value encoder and outputs more electrical signals according to the different rotation angles, so as to facilitate the simulation of different gears, and then accurately and finely control the spray volume of the nozzle. Allow users to adjust the spray volume that suits them to adapt to different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings of the embodiments 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 creative work.

[0018] Figure 1 It is a three-dimensional diagram of an embodiment of the water light instrument of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of an embodiment of the water light instrument of the utility model with one side of the housing hidden;

[0020] Figure 3It is a top view of an embodiment of the water light instrument of the utility model;

[0021] Figure 4 yes Figure 3 AA section view;

[0022] Figure 5 It is a three-dimensional diagram of an embodiment of the water light instrument of the utility model with all the shells hidden;

[0023] Figure 6 It is an assembly diagram of a knob assembly, a nozzle decorative cover, an absolute encoder, a nozzle assembly, a circular gear, a reduction motor, and a Hall plate in one embodiment of the knob mist regulating nozzle of the utility model;

[0024] Figure 7 It is an assembly diagram of a knob assembly, a nozzle decorative cover, an absolute encoder, a nozzle assembly, a circular gear, and a reduction motor in one embodiment of the knob mist regulating nozzle of the utility model;

[0025] Figure 8 yes Figure 7 BB cross-sectional view;

[0026] Fig. 9 It is an exploded view of a knob assembly, a nozzle decorative cover, an absolute encoder, and a nozzle assembly of one embodiment of the knob mist regulating nozzle of the utility model;

[0027] Fig.10 It is an exploded view of a knob assembly, a nozzle decorative cover, an absolute encoder, and a nozzle assembly of one embodiment of the knob mist regulating nozzle of the utility model;

[0028] Fig.11 It is a longitudinal sectional view of a nozzle assembly of an embodiment of the knob mist regulating nozzle of the utility model;

[0029] Fig.12 It is an exploded view of a knob assembly of an embodiment of the knob mist regulating nozzle of the utility model;

[0030] Fig.13 It is an exploded view of an absolute value encoder of an embodiment of the knob mist regulating nozzle of the utility model;

[0031] Fig.14 It is a three-dimensional diagram of an absolute value encoder of an embodiment of the knob mist regulating nozzle of the utility model;

[0032] Fig.15 It is a three-dimensional diagram of an absolute value encoder of an embodiment of the knob mist regulating nozzle of the utility model;

[0033] Fig.16It is a three-dimensional diagram of an annular code disk of an embodiment of the knob mist regulating nozzle of the utility model;

[0034] Fig.17 It is an assembly diagram of a tubular member, a spring ring, and an annular code disk of an embodiment of the knob mist regulating nozzle of the utility model;

[0035] Fig.18 It is a schematic diagram of the gear positions of a knob assembly of an embodiment of the knob mist regulating nozzle of the utility model.

[0036] Description of Reference Numerals

[0037] 1-knob assembly; 101-external torsion ring; 1011-through hole; 102-internal torsion ring; 1021-convex column; 1022-internal notch; 1023-external notch; 2-nozzle decorative cover; 201-insertion tongue; 202-slot; 203-annular plate; 3-absolute encoder; 301-annular box; 3011-blind hole; 3012-annular wrapping groove; 3013-axial lug; 3014-buckle; 3015-radial hole; 3016-limiting groove; 302-tubular piece; 3021-axial groove; 3022-radial boss; 3023-axial convex hook; 3024-radial flange; 3025-axial tube; 303-annular cover plate; 304-shrapnel ring; 3041-convex arch; 3042-radial sheet; 305-annular code disk; 3051-wiring terminal; 3052-terminal; 4-nozzle assembly; 401-nozzle; 402-tail shaft; 403-screw rod; 4031-blocking needle; 404-nut; 405-spring; 406-air inlet; 407-liquid inlet; 408-conical cover; 5-circular gear; 6-reduction motor; 7-Hall plate; 8-nozzle housing; 9-air pump; 10-battery; 11-tee pipe; 12-printed circuit board; 13-button; 14-air outlet pipe; 15-liquid outlet pipe; 16-handle housing; 17-body housing; 1701-air inlet; 18-handle hole; 19-air inlet pipe. DETAILED DESCRIPTION

[0038] The knob mist regulating nozzle and water light meter of the present application are further described in detail below in conjunction with specific embodiments.

[0039] See also Fig. 9 and Fig.11In some embodiments of the present application, the knob mist regulating nozzle may include: a nozzle assembly 4, an absolute encoder 3, and a knob assembly 1. The nozzle assembly 4 has a nozzle 401 for spraying atomized liquid, and the nozzle assembly 4 also includes a blocking needle 4031 that performs axial movement in the nozzle 401. The nozzle assembly 4 itself is provided with a screw member 403 and a nut 404 that are movably assembled with each other at the axis thereof. One end of the screw member 403 is equipped with a circular gear 5, and the other end of the screw member 403 is the blocking needle 4031. A reduction motor 6 is arranged outside the nozzle assembly 4, that is, the nozzle assembly 4 and the reduction motor 6 are arranged parallel to each other, and the reduction motor 6 can mesh with the circular gear 5 through a gear and drive the screw member 403 to perform axial movement. The absolute encoder 3 is connected to the reduction motor 6 to realize electrical signal connection; such as Figure 6 As shown, the circular gear 5 is provided with a Hall plate 7 outside, and the Hall plate 7 senses the rotation of the circular gear 5. The absolute encoder 3 is coaxially sleeved on the periphery of the nozzle assembly 4, and the rotation angle of the absolute encoder 3 is electrically associated with the axial movement of the blocking needle 4031, that is, the absolute encoder 3 outputs an electrical signal, and the electrical signal triggers the electric actuator (an example of which can be a reduction motor 6), and the electric actuator drives the blocking needle 4031 to change its position. The knob assembly 1 is for finger contact, and the knob assembly 1 is coaxially assembled with the nozzle assembly 4, and the knob assembly 1 drives the absolute encoder 3 to rotate.

[0040] The beneficial effects of adopting the above implementation scheme are: the principle of the absolute encoder 3 is to determine the encoding by mechanical position, it does not need to be memorized, does not need to find a reference point, and does not need to count all the time. When you need to know the position, you can read its position. The absolute encoder 3 has a range. What directly changes the spray volume effect is the relative position between the blocking needle 4031 and the nozzle 401. The nut 404 is fixed relative to the main body of the nozzle assembly 4, and the screw rod 403 is movable relative to the main body of the nozzle assembly 4. The nut 404 and the screw rod 403 can output the rotational motion of the reduction motor 6 as the axial reciprocating motion of the blocking needle 4031. In addition, it is inconvenient for personnel to directly contact the absolute encoder 3, so the knob assembly 1 is used for direct physical drive.

[0041] like Fig.13 As shown, the absolute encoder 3 includes an annular box 301, which has an annular wrapping groove 3012. The annular wrapping groove 3012 accommodates an annular code disk 305. The annular code disk 305 has a plurality of terminals 3052 in an annular array. The bottom surface of the annular wrapping groove 3012 has a plurality of blind holes 3011 in an annular array, and each terminal 3052 corresponds to a blind hole 3011.

[0042] The beneficial effect of adopting the above implementation scheme is: the entire absolute encoder 3 is structurally designed. The absolute encoder 3 converts the absolute position information into an electrical signal by means of the terminal 3052. Each terminal 3052 is correspondingly wrapped and protected by a blind hole 3011. The absolute encoder 3 can generate a digital signal that can identify the absolute position. The absolute encoder 3 can know its position as long as it is powered on, and will remember the original value after power failure, without returning to the origin, so it is equivalent to a knob with a certain memory function.

[0043] like Fig.13 As shown, the absolute encoder 3 also includes a tubular member 302, an annular cover plate 303, and a spring ring 304; the tubular member 302 includes a radial flange 3024 located in the annular wrapping groove 3012 and an axial tube 3025 located outside the annular wrapping groove 3012, and the radial flange 3024 is parallel to the annular code disk 305 and the axial projections overlap. The knob assembly 1 and the axial tube 3025 are assembled with each other and have synchronous rotational freedom; the annular cover plate 303 covers the opening of the annular wrapping groove 3012; the spring ring 304 has a convex arch 3041, and the radial flange 3024 has a plurality of axial grooves 3021 in an annular array, such as Fig.17 As shown, the convex arch 3041 can selectively contact the axial groove 3021; ​​the radial flange 3024 is located between the annular code disk 305 and the spring ring 304. Fig.13 As shown, the outer ring of the spring ring 304 has an outwardly protruding radial piece 3042, and the annular box 301 has a limiting groove 3016 assembled with the radial piece 3042, so that the circumferential limiting of the spring ring 304 and the annular box 301 is achieved.

[0044] The beneficial effect of adopting the above implementation scheme is that the specific structural design of the absolute encoder 3 is to use the annular box 301 and the annular cover plate 303 as the main body, which can form an annular space for accommodating the annular code disk 305. The tubular member 302 can have the freedom of rotation relative to the annular box 301, so that the radial flange 3024 and the annular code disk 305 can rotate relative to each other, so that the principle of the absolute encoder 3 is to determine the code by the mechanical position, without the need to remember or find a reference point, and can record the specific angle of rotation of the user's finger. In addition, there is a certain elastic limiting force in the contact between the convex arch 3041 and the axial groove 3021, so it can improve the feel, that is, guide the rated angle value of each rotation, and also improve the ergonomic effect.

[0045] The outer wall of the axial tube 3025 has a radial boss 3022 and an axial convex hook 3023, and the inner wall of the knob assembly 1 has an inner notch 1022 and an outer notch 1023. The inner notch 1022 and the outer notch 1023 have openings that are connected to the axial ends of the knob assembly 1 respectively. The radial boss 3022 and the inner notch 1022 realize concave-convex positioning, and the axial convex hook 3023 and the outer notch 1023 realize snap-fit; the annular box 301 has a radial hole 3015 that is connected to the annular wrapping groove 3012, and the annular code disk 305 has a wiring terminal 3051 that protrudes radially outward and passes through the radial hole 3015.

[0046] The beneficial effects of adopting the above implementation scheme are: the radial boss 3022 and the inner notch 1022 realize concave-convex positioning, the axial convex hook 3023 and the outer notch 1023 realize the clamping connection, and finally realize the rotational freedom of the knob assembly 1 and the axial tube 3025, ensuring that the rotation of the two is synchronized with each other, and ensuring the accurate transmission of the user's knob angle. In addition, in setting the reference direction, the axial injection direction of the nozzle assembly 4 is "outside" and the reverse direction is "inside", and the radial boss 3022 and the axial convex hook 3023 are respectively set as "inside" and "outside", which also ensures that after the knob assembly 1 and the absolute value encoder 3 are assembled, the radial boss 3022 realizes the circumferential limit of the knob assembly 1 and the absolute value encoder 3, and the axial convex hook 3023 realizes the axial limit of the knob assembly 1 and the absolute value encoder 3.

[0047] The present application provides a specific structure of an absolute value encoder 3, however, this is only exemplary and not restrictive. Other known structures or types of absolute value encoders can also be applied to the present application.

[0048] like Fig.12 As shown, the knob assembly 1 includes an outer twist ring 101 and an inner twist ring 102 which are coaxial with each other. The outer twist ring 101 and the inner twist ring 102 are respectively provided with a through hole 1011 and a convex column 1021. The through hole 1011 and the convex column 1021 are assembled with each other, and the outer twist ring 101 is for finger contact.

[0049] The beneficial effect of adopting the above-mentioned implementation scheme is that the knob assembly 1 can include two independent annular parts, and the through hole 1011 and the boss 1021 can also ensure the synchronous rotation of the two. In addition, the through hole 1011 and the boss 1021 can also be used as a mark to facilitate personnel to know the angle of rotation. Moreover, as a separate component, the outer torsion ring 101 can be processed with different tactile materials and surface textures, while the inner torsion ring 102 responsible for assembly does not need to be designed in this regard. Such a block design is convenient for reducing costs and providing different categories of knob assemblies 1 without major changes to the entire product.

[0050] like Figure 8 , Fig.10As shown, a nozzle decorative cover 2 is further provided between the knob assembly 1 and the nozzle assembly 4. The nozzle decorative cover 2 includes an integral annular plate 203 and an insert tongue 201. The annular plate 203 covers the radial space between the inner ring of the knob assembly 1 and the outer ring of the nozzle assembly 4. The insert tongue 201 extends axially, and a buckle 3014 is protruded on the inner ring of the annular box 301. The insert tongue 201 is provided with a slot 202 that is mutually engaged with the buckle 3014.

[0051] The beneficial effect of adopting the above embodiment is that because the nozzle assembly 4 often has an inherent outer diameter value, and the knob assembly 1 also has a more suitable diameter range in order to improve the ergonomic effect, the radial space between the two is covered by the nozzle decorative cover 2. The nozzle decorative cover 2 does not need to rotate with the knob assembly 1, so the buckle 3014 and the groove 202 are used to limit the rotation of the nozzle decorative cover 2. In another preferred embodiment, a mark is printed on the annular plate 203 of the nozzle decorative cover 2 to remind the user of the knob angle of the knob assembly 1.

[0052] In another embodiment, the specific structure inside the nozzle assembly 4 is as follows: Fig.11 As shown, the side wall of the nozzle assembly 4 has a through air inlet hole 406 and a liquid inlet hole 407, and the axial distance from the air inlet hole 406 to the nozzle 401 is shorter than the axial distance from the liquid inlet hole 407 to the nozzle 401; the nozzle assembly 4 also includes a conical cover 408 sleeved on the screw member 403, the inner wall of the conical cover 408 is in contact with the liquid injected from the liquid inlet hole 407, and the outer wall of the conical cover 408 is in contact with the gas injected from the air inlet hole 406. Figure 2 As shown, the liquid inlet 407 is connected to the liquid outlet pipe 15. For the purpose of clear display, Figure 4 and Figure 8 Not shown Fig.11 The internal structure of the nozzle assembly 4.

[0053] The beneficial effect of adopting the above implementation scheme is that the conical cover 408 ensures that the gas and the liquid only come into contact at a position close to the nozzle 401, and the conical cover 408 has a good guiding effect on the gas and the liquid, and can provide a better atomization effect.

[0054] like Figure 5 and Figure 6 In another embodiment, the nozzle assembly 4 and the outer surface of the circular gear 5 are protected by a nozzle housing 8. The Hall plate 7 is also inserted into the nozzle housing 8, and the Hall plate 7 points to the convex teeth of the circular gear 5, such as Figure 6 As shown, the Hall plate 7 may be a convex tooth pointing toward the circular gear 5 along the axial direction of the circular gear 5 .

[0055] And as Fig.11As shown, in another embodiment, the nozzle 401 is in the shape of a bell mouth, a spring 405 is sleeved on the screw rod 403 , and a section of the screw rod 403 away from the blocking needle 4031 is a tail shaft 402 assembled with the circular gear 5 .

[0056] The beneficial effect of adopting the above implementation scheme is that the Hall plate 7 facilitates the sensing of the rotation angle of the circular gear 5. The existence of the Hall plate 7 provides a feedback design to facilitate the sensing of the relationship between the actual rotation angle of the circular gear 5 and the actual rotation angle of the knob assembly 1, thereby ensuring the precise rotation of the circular gear 5.

[0057] See also Figure 2 , Figure 5 The water light meter of one embodiment of the present application includes a housing, an air pump 9, a battery 10, and a printed circuit board 12. The absolute value encoder 3 is wrapped by the housing; the air pump 9 is connected to the nozzle assembly 4; the battery 10 provides power for the air pump 9, the absolute value encoder 3, the reduction motor 6, etc.; the absolute value encoder 3, the Hall plate 7, the reduction motor 6 and the printed circuit board 12 are connected to electrical signals, and the printed circuit board 12 is also connected to a button 13. In the water light meter, the knob assembly 1 is located above the button 13.

[0058] The beneficial effect of adopting the above embodiment is that the only buttons exposed on the entire water light instrument are the button 13 and the knob assembly 1. The position and function of the button 13 can be similar to those of the existing water light instrument, that is, they are all located on the body of the water light instrument away from the nozzle 401, and can play the role of turning the machine on and off. The printed circuit board 12 plays the role of receiving, storing, and outputting electrical signals, so as to correct the output value of the reduction motor 6 with the feedback signal of the Hall plate 7.

[0059] In another embodiment, if Figure 1 , Figure 4 As shown, the housing of the water light instrument includes a pair of mirror-symmetrically arranged body housings 17, and also includes a pair of mirror-symmetrically arranged handle housings 16, and the handle housings 16 surround a handle hole 18 for the user to grasp. The knob assembly 1 and the button 13 are located at the intersection of the pair of body housings 17.

[0060] In another embodiment, if Figure 2 As shown, one end of the liquid outlet pipe 15 is connected to the three-way pipe 11, and a liquid tank is provided outside the three-way pipe 11, and the liquid tank is connected to the three-way pipe 11. Figure 1 As shown, the housing 17 is provided with an air inlet 1701. Figure 2 As shown, the gas at the outlet end of the air pump 9 is connected to the air inlet hole 406 of the nozzle assembly 4 through the air outlet pipe 14, and the inlet end of the air pump 9 is connected to the air inlet hole 1701 through the air inlet pipe 19.

[0061] In another embodiment, if Fig.10 , Fig.15 As shown, an axial lug 3013 is protruded from the back of the annular box 301, and the axial lug 3013 is fixed to the positioning pin on the inner wall of the body shell 17, so that the mechanical freedom of rotation of the annular box 301 is restricted.

[0062] The user turns on the printed circuit board 12 by long pressing the button 13. According to the set program, the reduction motor 6 automatically reaches the first gear position after rotating, and then rotates the knob assembly 1. The knob assembly 1 drives the absolute encoder 3 to control the operation of the reduction motor 6. The reduction motor 6 controls the rotation of the circular gear 5, and then adjusts the forward and backward telescopic movement of the screw rod 403 in the nozzle assembly 4.

[0063] When the water light instrument is actually used, the user briefly presses the button 13, the air pump 9 starts working, and the nozzle assembly 4 starts to spray the atomized liquid. The present application may include four major gears, namely the first gear, the second gear, the third gear and the cleaning gear. In sequence, along the first gear, the second gear, the third gear, and the cleaning gear (clean), the blocking needle 4031 gradually moves in the axial direction close to the circular gear 5. In the axial direction away from the circular gear 5, the needle head of the blocking needle 4031 gradually becomes thinner, so in sequence, along the first gear, the second gear, the third gear, and the cleaning gear, the blocking needle 4031 gradually gives up the opening space of the nozzle 401, so the amount of mist output from the nozzle 401 gradually increases. The cleaning gear with the largest amount of mist output is for cleaning the nozzle 401 itself. As Fig.18 As shown, there are four small gears between the first gear and the second gear. When the knob assembly 1 is turned to a small gear between the first gear and the second gear, the corresponding blocking needle 4031 moves the same distance; there are also four small gears between the second gear and the third gear. When the knob assembly 1 is turned to a small gear between the second gear and the third gear, the corresponding blocking needle 4031 also moves the same distance. To meet the different spraying needs of different users. The angle between adjacent small gears is 22.5°.

[0064] In another embodiment, in actual use, the reduction motor 6 controls the screw rod 403 to extend and retract, allowing each user to select the appropriate spray volume. The three-way pipe 11 is externally connected to liquids of different components. Compared with the prior art, the present application can better subdivide the opening size of the liquid, and prevent the problem of the nozzle 401 being blocked and not spraying due to the different fluidity of different liquids.

[0065] The above embodiments are only for illustrating the technical concept and features of the present application, and their purpose is to enable people familiar with this technology to understand the content of the present application and implement it. They cannot be used to limit the scope of protection of the present application. All equivalent changes or modifications made according to the spirit of the present application should be included in the scope of protection of the present application.

Claims

1. A knob mist regulating nozzle, characterized in that: include: A nozzle assembly having a nozzle for spraying atomized liquid, and the nozzle assembly also includes a blocking needle capable of axial movement at the nozzle; An absolute encoder, which is coaxially sleeved on the periphery of the nozzle assembly, and the rotation angle of the absolute encoder around its own axis is electrically related to the axial movement of the blocking needle; The knob assembly is for finger contact, the knob assembly is coaxially assembled with the nozzle assembly, and the knob assembly drives the absolute value encoder to rotate around the axis of the absolute value encoder.

2. The knob mist regulating nozzle according to claim 1, characterized in that: The nozzle assembly comprises a screw rod and a nut which are movably assembled with each other, one end of the screw rod is equipped with a circular gear, and the other end of the screw rod is the blocking needle; a reduction motor is arranged in parallel outside the nozzle assembly, the reduction motor meshes with the circular gear through a gear and drives the screw rod to move axially, and the absolute encoder is connected to the reduction motor for electrical signals; A Hall plate for sensing the rotation of the circular gear is disposed outside the circular gear.

3. The knob mist regulating nozzle according to claim 1, characterized in that: The absolute value encoder comprises an annular box and a tubular member, wherein the annular box has an annular wrapping groove, and an annular code disk is accommodated in the annular wrapping groove; the tubular member comprises a radial flange located in the annular wrapping groove and an axial tube located outside the annular wrapping groove; The annular code disk converts a physical quantity of rotation of the radial flange relative to the annular code disk into a digital signal.

4. The knob mist regulating nozzle according to claim 3 is characterized in that: The absolute value encoder also includes an annular cover plate and a spring ring; The shrapnel ring is relatively fixed to the annular box, and the knob assembly and the axial tube are assembled with each other and have synchronous rotational freedom; The annular cover plate covers the opening of the annular wrapping groove; The spring ring is provided with a convex arch portion, and the radial flange is provided with a plurality of axial grooves in an annular array, and the convex arch portion and the axial grooves can selectively contact; The radial flange is located between the annular code disk and the spring ring.

5. The knob mist regulating nozzle according to claim 4, characterized in that: The outer wall of the axial tube is provided with a radial boss and an axial convex hook, and the inner wall of the knob assembly is provided with an inner notch and an outer notch, the openings of the inner notch and the outer notch are respectively connected with the axial ends of the knob assembly, the radial boss and the inner notch are respectively positioned concavely and convexly, and the axial convex hook and the outer notch are clamped; The annular box is provided with a radial hole connected with the annular wrapping groove, and the annular code disk is provided with a wiring terminal which protrudes radially outward and passes through the radial hole.

6. The knob mist regulating nozzle according to claim 1, characterized in that: The knob assembly comprises an outer twist ring and an inner twist ring which are coaxial with each other. The outer twist ring and the inner twist ring are respectively provided with a through hole and a convex column. The through hole and the convex column are assembled with each other. The outer twist ring is for contact with fingers.

7. The knob mist regulating nozzle according to claim 3, characterized in that: A nozzle decorative cover is also provided between the knob assembly and the nozzle assembly, the nozzle decorative cover comprises an integral annular plate and a plug tongue, the annular plate covers the radial space between the inner ring of the knob assembly and the outer ring of the nozzle assembly; The inserting tongue extends axially, the inner ring of the annular box is protruded with a buckle, and the inserting tongue is provided with a clamping groove which is mutually clamped with the buckle.

8. The knob mist regulating nozzle according to claim 2, characterized in that: The side wall of the nozzle assembly is provided with an air inlet hole and a liquid inlet hole penetrating the side wall, and the axial distance from the air inlet hole to the nozzle is shorter than the axial distance from the liquid inlet hole to the nozzle; The nozzle assembly also includes a conical cover sleeved on the screw rod, the inner wall of the conical cover can contact the liquid injected from the liquid inlet hole, and the outer wall of the conical cover can contact the gas injected from the gas inlet hole.

9. A water light instrument, characterized in that: Including the knob mist regulating nozzle described in claim 2 or 8.

10. The water light instrument according to claim 9, characterized in that: Also includes: A housing, wherein the absolute encoder is enclosed by the housing, and the knob assembly is partially located outside the housing; an air pump connected to the nozzle assembly; Battery; The absolute encoder, the Hall plate, the reduction motor and the printed circuit board are connected to each other via electrical signals. The printed circuit board is also connected to a key mounted on the housing.

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