Intelligent induction dual-mode hand sterilizer

Abstract

The invention discloses an intelligent sensing dual-mode hand sterilizer, which belongs to the technical field of sterilizing equipment, and comprises a body, two groups of horizontal guide rails are arranged in the body, the guide rails are composed of a plurality of smooth sections and tooth sections which are alternately arranged, and the distribution track is matched with the outer edge contour of a hand; the spray head is arranged in a sliding mode in the length direction of the guide rail; and the rotating piece is annularly and rotationally arranged on the spray head, the rotating piece is meshed with the tooth section, and at least two guide grooves are formed in the inner ring wall of the rotating piece. Through the arrangement of the spray head, the sliding column, the piston, the annular air bag and the moving block, the flow speed and the spraying distance of spray are dynamically adjusted by dynamically adjusting the area of a flow channel according to the distance between fingertips and finger gaps and the fingertips of the nozzle, so that precise spraying disinfection is achieved according to the outer edge contour of the hand, dead-corner-free disinfection is achieved, and the practicability is high. The spraying uniformity is effectively improved, the disinfection effect is improved, and the disinfection water is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of disinfection equipment, and particularly relates to an intelligent induction dual-mode hand disinfector. Background Art

[0002] A hand disinfector is a machine for disinfecting hands. Generally, it disinfects hands by spraying a disinfection spray. With the development of technology, intelligent hand disinfectors are becoming more and more popular. By setting an infrared sensor on the machine, when a hand reaches into the machine, the disinfectant can be automatically sprayed, thus realizing contactless disinfection.

[0003] In the prior art, since the outer edge contour of the hand includes the fingertips of the fingers and the V-shaped gaps between two fingers, when disinfecting, the existing hand disinfectors generally only spray and disinfect the palm and the back of the hand, while the nail grooves at the fingertips and the V-shaped finger gaps between two fingers are easily overlooked, resulting in incomplete hand disinfection. Moreover, due to the different positions of the fingertips and the concave parts of the finger gaps, when spraying, it is easy to have uneven spraying in the V-shaped gaps and cannot perform precise spraying and disinfection according to the outer edge contour of the hand. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent induction dual-mode hand disinfector to solve the technical problem in the prior art that due to the different positions of the fingertips and the concave parts of the finger gaps, when spraying, it is easy to have uneven spraying in the V-shaped gaps and cannot perform precise spraying and disinfection according to the outer edge contour of the hand.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An intelligent induction dual-mode hand disinfector, comprising:

[0006] A main body, which is internally provided with two groups of horizontal guide rails. The guide rails are composed of a plurality of alternately arranged smooth sections and tooth sections, and the distribution trajectory matches the outer edge contour of the hand;

[0007] A spray head, which is slidably arranged along the length direction of the guide rail;

[0008] A rotating member, which is annularly rotated on the spray head. The rotating member is meshed with the tooth sections, and at least two guide grooves are opened on the inner ring wall. The guide grooves are V-shaped grooves, and the two side grooves are arranged in a reverse spiral shape;

[0009] A pneumatic driving component, which is arranged in the spray head. The pneumatic driving component includes an annular cavity, a piston and a sliding column elastically arranged along the central axis direction of the spray head. One end of the sliding column is relatively slidably arranged in the guide groove, and the other end is in transmission connection with the piston;

[0010] A flow channel adjusting ring, which includes fan-shaped moving blocks arranged in a circumferential array in the spray head. An airbag communicated with the annular cavity is arranged on the outer arc edge of the moving block;

[0011] The guiding groove and the sliding column cooperate to convert the rotational motion of the rotating part into the axial displacement of the piston.

[0012] When the nozzle moves in the meshing section, the piston elastically compresses to adjust the air pressure in the annular cavity, the airbag expands and deforms, and pushes the moving block to radially contract. When moving in the smooth section, the piston elastically resets to achieve the anti-deformation adaptive adjustment of the flow channel cross-sectional area.

[0013] Preferably, at least three sets of flow channel adjusting rings are arranged along the central axis direction in the nozzle, and the multiple sets of flow channel adjusting rings are arranged in a stepped manner along the spray flow direction, and the cross-sectional area of the flow channel corresponding to each set of flow channel adjusting rings gradually decreases.

[0014] Preferably, rubber blocks are symmetrically arranged at both ends of the moving block.

[0015] Preferably, the two side edges of the inner ring surface of the moving block along the gradient direction are arc-shaped.

[0016] Preferably, the airbag is arranged in a corrugated shape, and the central axis is parallel to the radial moving direction of the moving block at the corresponding position.

[0017] Preferably, the spraying end of the nozzle is conical, a liquid accumulation cavity is opened at the nozzle of the spraying end, and an acceleration channel communicating with the nozzle is opened inside the spraying end.

[0018] Preferably, the acceleration channel includes a first acceleration section and a second acceleration section, and the cross-sectional area of both of them gradually decreases from the spray inlet to the spray outlet.

[0019] Preferably, negative pressure cavities are symmetrically arranged inside the spraying end of the nozzle, the liquid inlet of the negative pressure cavity is communicated with the liquid accumulation cavity, and the liquid outlet is communicated with the connection part of the first acceleration section and the second acceleration section.

[0020] Preferably, a disinfection cavity is arranged inside the body, and the nozzle is slidably arranged inside the disinfection cavity.

[0021] Preferably, ultraviolet disinfection lamps are arranged in an array at the top of the disinfection cavity, and an infrared sensor is arranged at the top of the entrance of the disinfection cavity.

[0022] In the above technical solution, an intelligent induction dual-mode hand disinfection device provided by the present invention has the following beneficial effects:

[0023] Through the provided nozzle, sliding column, piston, annular airbag and moving block, when the nozzle moves to the toothed section of the guide rail, the rotating part rotates. The rotational motion is converted into the axial displacement of the guiding part through the cooperation of the guiding groove and the sliding column, causing the piston to be elastically compressed and adjusting the air pressure compression in the annular cavity, and inflating and expanding the airbag. When the nozzle moves to the smooth section of the guide rail, the airbag inflates and then contracts, thereby pushing the moving block to move radially, synchronously adjusting the cross-sectional area of the spray channel. By dynamically adjusting the channel area according to the distance between the fingertips and finger gaps and the nozzle fingertips, the flow rate and spraying distance of the spray are dynamically adjusted, so as to achieve precise spraying and disinfection according to the outer edge contour of the hand, realizing dead-angle-free disinfection, effectively improving the uniformity of spraying, enhancing the disinfection effect, and saving disinfection water. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the three-dimensional structure provided by the embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the internal structure provided by the embodiment of the present invention;

[0027] Figure 3 Schematic diagram of the side sectional structure provided by the embodiment of the present invention;

[0028] Figure 4 Schematic diagram of the partial structure top view provided by the embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the partial structure bottom view provided by the embodiment of the present invention;

[0030] Figure 6 Schematic diagram of the enlarged structure A provided by the embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the partial structure front view provided by the embodiment of the present invention;

[0032] Figure 8 Schematic diagram of the guide rail structure provided by the embodiment of the present invention;

[0033] Figure 9 Schematic diagram of the side sectional structure of the nozzle provided by the embodiment of the present invention;

[0034] Figure 10 Schematic diagram of the enlarged structure B provided by the embodiment of the present invention;

[0035] Figure 11 A schematic diagram of the front cross-sectional structure of a nozzle provided by an embodiment of the present invention;

[0036] Figure 12 A schematic diagram of the side cross-sectional structure of the internal changes of the nozzle provided by an embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the front cross-sectional structure of the internal changes of the nozzle provided by an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Main body; 2. Guide rail; 3. Nozzle; 4. Gear ring; 5. Rotating ring; 51. Guide groove; 6. Sliding ring; 61. Sliding column; 7. Piston; 8. Annular cavity; 9. Fixed ring; 10. Moving block; 11. Acceleration channel; 12. Negative pressure cavity; 13. Effusion cavity; 14. Airbag. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] like Figures 1-13 As shown, an intelligent induction dual-mode hand disinfector includes:

[0042] The body 1 is provided with two sets of horizontal guide rails 2, which are composed of a plurality of smooth segments and toothed segments arranged alternately, and the distribution trajectory matches the outer edge contour of the hand;

[0043] The nozzle 3 is slidably arranged along the length direction of the guide rail 2;

[0044] The rotating member is provided on the nozzle 3 in an annular rotational manner, is engaged with the tooth segment, and has at least two guide grooves 51 formed on the inner ring wall. The guide grooves 51 are V-shaped grooves, and the grooves on both sides are provided in opposite spiral shapes.

[0045] A pneumatic drive assembly is provided in the nozzle 3 and includes an annular chamber 8, a piston 7 elastically arranged along the central axis of the nozzle 3, and a slide post 61. One end of the slide post 61 is relatively slidably arranged in the guide groove 51, and the other end is drivingly connected to the piston 7.

[0046] The flow channel adjustment ring includes a fan-shaped moving block 10 arranged in a circumferential array in the nozzle 3, and an air bag 14 is provided on the outer arc edge of the moving block 10 and communicates with the annular cavity 8;

[0047] The guide groove 51 cooperates with the slide post 61 to convert the rotational motion of the rotating member into the axial displacement of the piston 7;

[0048] When the nozzle 3 moves in the meshing section, the piston 7 is elastically compressed to adjust the air pressure in the annular chamber 8, and the airbag 14 expands and deforms, pushing the moving block 10 to radially contract. When moving in the smooth section, the piston 7 elastically resets to achieve the anti-deformation adaptive adjustment of the flow passage cross-sectional area.

[0049] Specifically, a disinfection chamber is provided in the main body 1, and the nozzle 3 is slidably arranged in the disinfection chamber. Ultraviolet disinfection lamps are arranged in an array at the top of the disinfection chamber, and an infrared sensor is arranged at the top of the entrance of the disinfection chamber. When disinfecting the hands, place the wrists of both hands on the hand brackets symmetrically arranged in the disinfection chamber, so that both hands are in a preset position in the disinfection chamber. When both hands approach the entrance of the disinfection chamber, the infrared sensor senses the hands and transmits the signal to the controller. The controller starts the motor to rotate, thereby driving the threaded rod at the output end of the motor to rotate, and driving the two threaded plates threadedly connected to the threaded rod to move synchronously and in the same direction along the threaded rod, thereby driving the nozzle 3 fixedly arranged on the threaded plate to slide along the length direction of the guide rail 2.

[0050] Furthermore, when the infrared sensor senses the hands and transmits the signal to the controller, the controller simultaneously drives the pump body to extract and atomize the disinfectant liquid in the disinfectant liquid storage chamber at the top of the main body 1, and then passes the disinfection spray into the nozzle 3 through the hose and sprays it out through the nozzle of the nozzle 3. First, hold the hands upright with the palms facing the nozzle 3, disinfect the palms first, then disinfect the backs of the hands, and then place the nozzle 3 at either end of the guide rail 2, flatten the hands, open the hands, and expose the finger seams.

[0051] Furthermore, since the outer edge contour of the hand includes the fingertips of the fingers and the V-shaped gaps between two fingers, when disinfecting, existing hand disinfectors generally only spray and disinfect the palms and backs of the hands during disinfection, while the nail seams of the fingertips and the V-shaped finger seams between two fingers are easily overlooked, resulting in incomplete hand disinfection. And because the positions of the fingertips and the concave parts of the finger seams are different, during spraying, it is easy to have uneven spraying in the V-shaped gaps and cannot perform precise spraying and disinfection according to the outer edge contour of the hand. Therefore, the guide rail 2 is set to be composed of multiple alternately arranged smooth sections and tooth sections, and the distribution track matches the outer edge contour of the hand. The smooth sections correspond to the fingers, and the tooth sections correspond to the V-shaped gaps between the fingers. During disinfection, when the nozzle 3 slides along the length direction of the guide rail 2, it first passes through the smooth section on the guide rail 2. The nozzle 3 passes through the nail seam of the first finger. Since the distance from the fingertip to the nozzle 3 is relatively close, when the nozzle 3 passes through the nail seam of the first finger, the spraying distance is short, the speed is fast, and it has a strong impact force, so as to perform impact cleaning and disinfection on the nail seam of the first finger.

[0052] Furthermore, as the nozzle 3 moves, the gear ring 4 located on the outer wall of the nozzle 3 engages with the tooth segment on the guide rail 2. As the nozzle 3 moves, the gear ring 4 rotates synchronously, and drives the first limiting ring on the inner ring wall of the gear ring 4 to rotate, thereby driving the first connecting ring on the inner ring wall of the first limiting ring to rotate, thereby driving the rotating ring 5 on the inner ring wall of the first connecting ring to rotate synchronously, thereby driving the guide groove 51 opened on the inner ring wall of the rotating ring 5 to rotate synchronously. No additional driving source is required to drive the rotating ring 5 to rotate, further saving production costs.

[0053] It should be noted that the first connecting ring passes through the pipe wall of the nozzle 3, thereby dividing the nozzle 3 into two parts. The two parts are fixed by a semicircular shell fixed on the nozzle 3, so that the two divided parts of the nozzle 3 are reconnected, and since the first connecting ring, the first limiting ring and the rotating ring 5 have an I-shaped cross-section, the rotating ring 5 and the first connecting ring are respectively located on the inner and outer sides of the dividing position, so that the inside of the nozzle 3 remains sealed, and the semicircular shell is fixedly connected to the threaded plate.

[0054] Furthermore, since the guide groove 51 is a V-shaped groove, and the groove bodies on both sides are arranged in reverse spirals, and the apex of the V-shaped groove is located at the nozzle end away from the nozzle 3, the initial position of the slide 61 is located at the apex of the V-shaped groove. When the guide groove 51 rotates, and no matter which direction it rotates, the slide 61 slides relatively in the guide groove 51 from the apex of the V-shaped groove to the end point, and the slide 61 moves from the nozzle end away from the nozzle 3 to the nozzle end close to the nozzle 3.

[0055] Furthermore, a sliding ring 6 is slidingly provided inside the rotating ring 5, and a sliding column 61 is fixedly provided on the outer wall of the sliding ring 6. The sliding column 61 moves from the nozzle end away from the nozzle head 3 to the nozzle end close to the nozzle head 3. During the process, the sliding ring 6 is driven to move synchronously. The sliding ring 6 further drives the piston 7 to move synchronously in the annular cavity 8 through the first connecting rod. Since the first connecting rod passes through the cavity wall on one side of the annular cavity 8, the displacement of the sliding ring 6 is limited, thereby converting the rotational motion of the rotating ring 5 into the axial displacement of the piston 7. The piston 7 moves synchronously and squeezes the first spring. At the same time, the pressure compression in the annular cavity 8 is adjusted, thereby squeezing the gas in the annular cavity 8 into the airbag 14 through the first airway.

[0056] Further, a fixing ring 9 is provided on the inner wall of the nozzle 3. The airbag 14 and the moving block 10 are embedded on the inner ring wall of the fixing ring 9. The first air passage is opened in the fixing ring 9. Under the limitation of the embedding groove, the airbag 14 is inflated and deformed and pushes the moving block 10 to move radially and contract, so that the channel area of the flow channel adjusting ring gradually decreases. According to the principle that the flow velocity is small at the large cross-section and large at the small cross-section, as the flow channel area gradually decreases, the flow velocity of the disinfection spray passing through the flow channel gradually increases, so that the spraying distance gradually becomes longer, and thus the inclined side of one side of the V-shaped finger gap at the corresponding position is sprayed. Since the distance from the end point to the vertex of the inclined side of this side to the nozzle fingertip gradually increases, by reducing the cross-sectional area of the flow channel, the flow velocity of the disinfection spray passing through the flow channel gradually increases, so that the spraying distance gradually becomes longer, and thus the spraying distance is dynamically adjusted adaptively according to the distance between the inclined side of one side of the V-shaped finger gap and the nozzle 3 of the nozzle, so as to ensure that the inclined side can be evenly sprayed, thereby improving the disinfection spraying effect.

[0057] Further, when the nozzle 3 moves to the next smooth section of the guide rail 2, the nozzle 3 sprays to the concave part of the V-shaped finger gap. At this time, the toothed ring 4 disengages from the engagement, and the piston 7 moves reversely under the reset action of the first spring and pumps the gas in the airbag 14 back into the annular cavity 8. The airbag 14 contracts and deforms, and drives the moving block 10 to move radially and expand, so that the channel area of the flow channel adjusting ring gradually expands, so that the flow velocity gradually decreases. Since the distance from the vertex to the end point of the inclined side of the other side of the V-shaped finger gap to the nozzle gradually decreases, by gradually expanding the channel area of the flow channel adjusting ring, the flow velocity gradually decreases, so that the spraying distance gradually decreases, so as to dynamically adapt to the spraying distance of the inclined side of the other side of the V-shaped finger gap, so as to further achieve uniform spraying. Finally, after spraying and disinfecting the nail groove of the second finger, the nozzle 3 continues to slide along the guide rail 2 and engages with the next tooth section to disinfect and spray the second V-shaped finger gap, and sequentially disinfect and spray the fingertips and finger gaps behind. By dynamically adjusting the flow channel area according to the distance between the fingertips and finger gaps and the nozzle fingertip, the flow velocity and spraying distance of the spray are dynamically adjusted, so as to achieve precise spraying and disinfection according to the outer edge contour of the hand, achieve dead-angle-free disinfection, effectively improve the uniformity of spraying, improve the disinfection effect, and save disinfection water.

[0058] Further, after the spraying is completed, when the hand is withdrawn from the disinfection chamber, the infrared sensor transmits information to the controller again, and the controller further starts the ultraviolet disinfection lamp to dry and disinfect the inside of the disinfection chamber, so as to realize dual-mode intelligent induction disinfection.

[0059] As a further embodiment provided by the present invention, at least three groups of flow channel adjusting rings are arranged along the central axis direction in the nozzle 3. The multiple groups of flow channel adjusting rings are arranged in a stepped manner along the spray flow direction, and the flow channel cross-sectional areas of the corresponding sections of each group of flow channel adjusting rings gradually decrease.

[0060] Specifically, multiple sets of flow channel adjusting rings are arranged in a stepped manner along the spray flow direction, and the cross-sectional area of the flow channel corresponding to each set of flow channel adjusting rings gradually decreases. Through the setting of multi-stage flow channels, continuous acceleration of the spray is achieved, so that the spray droplets are further refined, effectively preventing unstable spraying at the nozzle, enabling the spray to pass through the nozzle smoothly, and preventing nozzle blockage.

[0061] As a further embodiment provided by the present invention, rubber blocks are symmetrically arranged at both ends of the moving block 10.

[0062] Specifically, by arranging rubber blocks at both ends of the moving block 10, when the moving block 10 moves radially and contracts, the distance between the two ends of adjacent moving blocks 10 gradually decreases. Through the mutual extrusion and deformation of the rubber blocks at adjacent positions, the moving block 10 is combined more tightly, making the flow channel smoother during diameter change.

[0063] As a further embodiment provided by the present invention, the two side edges of the inner ring surface of the moving block 10 along the gradient direction are arranged in an arc shape.

[0064] Specifically, multiple sets of flow channel adjusting rings are arranged in a stepped manner along the spray flow direction, and the cross-sectional area of the flow channel corresponding to each set of flow channel adjusting rings gradually decreases. Through the setting of multi-stage flow channels, continuous acceleration of the spray is achieved, so that the spray droplets are further refined, effectively preventing unstable spraying at the nozzle, enabling the spray to pass through the nozzle smoothly, and preventing nozzle blockage. And the two side edges of the inner ring surface of the moving block 10 along the gradient direction are arranged in an arc shape. Through the design of the convergence angle at the cross-section mutation, the controllable conversion from turbulent flow to laminar flow is realized. When the spray is multi-stage accelerated, the acceleration is more continuous and smooth, effectively suppressing the formation of turbulent flow, and making the spraying of the nozzle 3 more stable and efficient.

[0065] As a further embodiment provided by the present invention, the airbag 14 is arranged in a corrugated shape, and the central axis is parallel to the radial movement direction of the corresponding moving block 10.

[0066] As a further embodiment provided by the present invention, the jet end of the nozzle 3 is arranged in a conical shape, a liquid accumulation cavity 13 is opened at the nozzle of the jet end, and an acceleration channel 11 communicating with the nozzle is opened inside the jet end.

[0067] As a further embodiment provided by the present invention, the acceleration channel 11 includes a first acceleration section and a second acceleration section, and the cross-sectional area of both of them gradually decreases from the spray inlet to the spray outlet.

[0068] Specifically, since the acceleration channel 11 includes a first acceleration section and a second acceleration section, and the cross-sectional area of the channels from the spray inlet to the spray outlet gradually decreases for both of them, the spray is further secondarily accelerated when passing through the acceleration channel 11, thereby further refining the droplets, so that the spray can smoothly pass through the nozzle and be ejected.

[0069] As a further embodiment provided by the present invention, negative pressure chambers 12 are symmetrically arranged inside the ejection end of the nozzle 3. The liquid inlet of the negative pressure chamber 12 is communicated with the liquid accumulation chamber 13, and the liquid outlet is communicated with the connection part between the first acceleration section and the second acceleration section.

[0070] Specifically, during continuous variable-speed spraying and disinfection, droplets are likely to form and accumulate at the nozzle. The accumulated droplets cover the nozzle, which will cause the spray to be ejected unstably, affecting the spraying uniformity and spraying effect. Through the arranged liquid accumulation chamber 13 and negative pressure chamber 12, after the spray is multi-stage accelerated, it enters the first acceleration section for further acceleration. According to the principle that the flow rate of the fluid increases and the pressure decreases in the nozzle and the throat, resulting in a negative pressure at the throat, a negative pressure is formed when the spray passes through the connection part between the first acceleration section and the second acceleration section, and the negative pressure chamber 12 is suctioned through the first channel arranged between the connection part and the negative pressure chamber 12, so that a negative pressure is generated inside the negative pressure chamber 12. Then, the droplets generated in the liquid accumulation chamber 13 are suctioned through the second channel between the negative pressure chamber 12 and the liquid accumulation chamber 13 and recycled into the nozzle 3 for ejection, effectively avoiding droplet accumulation, preventing blockage at the nozzle, making the spray ejection more stable and uniform, and further improving the disinfection effect.

[0071] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An intelligent induction dual-mode hand sanitizer, characterized in that, Comprising: A body, inside which there are two sets of horizontal guide rails. The guide rails are composed of multiple alternately arranged smooth sections and tooth sections, and the distribution trajectory matches the outer edge contour of the hand. A nozzle, which is slidably arranged along the length direction of the guide rail. A rotating part, which is annularly rotatably arranged on the nozzle. The rotating part is meshed with the tooth section, and at least two guiding grooves are opened on the inner ring wall. The guiding grooves are V-shaped grooves, and the two side groove bodies are arranged in a reverse spiral shape. A pneumatic driving component, which is arranged inside the nozzle. The pneumatic driving component includes an annular cavity, a piston and a sliding column elastically arranged along the central axis direction of the nozzle. One end of the sliding column is relatively slidably arranged in the guiding groove, and the other end is in transmission connection with the piston. A flow channel adjusting ring, which includes fan-shaped moving blocks arranged in a circumferential array inside the nozzle. An air bag communicated with the annular cavity is arranged on the outer arc edge of the moving block. The cooperation between the guiding groove and the sliding column converts the rotational motion of the rotating part into the axial displacement of the piston. When the nozzle moves in the meshing section, the piston is elastically compressed to adjust the air pressure in the annular cavity, the air bag expands and deforms, and pushes the moving block to radially contract. When moving in the smooth section, the piston elastically resets to realize the anti-deformation adaptive adjustment of the flow channel cross-sectional area.

2. The intelligent induction dual-mode hand disinfector according to claim 1, wherein At least three groups of flow channel adjusting rings are arranged along the central axis direction inside the nozzle. The multiple groups of flow channel adjusting rings are arranged in a stepped manner along the spray flow direction, and the cross-sectional area of the flow channel corresponding to each group of flow channel adjusting rings gradually decreases.

3. The intelligent induction dual-mode hand sanitizer according to claim 2, wherein Rubber blocks are symmetrically arranged at both ends of the moving block.

4. The intelligent induction dual-mode hand sanitizer according to claim 3, wherein The two side edges of the inner ring surface of the moving block are arranged in an arc shape along the gradient direction.

5. The intelligent induction dual-mode hand sanitizer according to claim 4, wherein, The air bag is arranged in a corrugated shape, and the central axis is parallel to the radial moving direction of the corresponding moving block.

6. The intelligent induction dual-mode hand sanitizer according to claim 5, wherein The spraying end of the nozzle is arranged in a conical shape. A liquid accumulation cavity is opened at the nozzle of the spraying end, and an acceleration channel communicated with the nozzle is opened inside the spraying end.

7. The intelligent induction dual-mode hand sanitizer according to claim 6, wherein, The acceleration channel includes a first acceleration section and a second acceleration section, and the cross-sectional area of the channel gradually decreases from the spray inlet to the spray outlet.

8. The intelligent induction dual-mode hand sanitizer according to claim 7, characterized in that, Negative pressure cavities are symmetrically arranged inside the spraying end of the nozzle. The liquid inlet of the negative pressure cavity is communicated with the liquid accumulation cavity, and the liquid outlet is communicated with the connection part of the first acceleration section and the second acceleration section.

9. The intelligent induction dual-mode hand disinfector according to claim 1, wherein A disinfection cavity is arranged inside the body, and the nozzle is slidably arranged inside the disinfection cavity.

10. The intelligent induction dual-mode hand sanitizer according to claim 9, wherein, Ultraviolet disinfection lamps are arranged in an array at the top of the disinfection cavity, and an infrared sensor is arranged at the top of the entrance of the disinfection cavity.

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