Spraying device and actuating method thereof

Abstract

The invention discloses a spraying device which comprises an upper shell, an inner barrel, a container frame and a transmission mechanism, and a spraying mechanism is arranged in the upper shell; the inner cylinder is arranged in the upper shell in a sliding mode in the axial direction of the device. The container frame is arranged in the inner cylinder in a sliding mode in the axial direction of the device, and the container frame is used for installing a liquid storage container; the transmission mechanism is respectively connected with the inner barrel and the container frame and is used for driving the inner barrel and the container frame to synchronously and reversely move; when the inner barrel moves upwards, the transmission mechanism can be promoted to drive the container frame to move downwards, and the device is in a first state; when the inner barrel moves downwards, the transmission mechanism can be promoted to drive the container frame to move upwards, and the device is in a second state. According to the spraying device, double-hand rotation actuation is changed into single-hand pressing actuation through the transmission mechanism, operation is convenient and fast, a patient can conveniently use the spraying device, and the actuation mode of the device is compatible with various crowds.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a spray device and an actuation method thereof. Background Art

[0002] Spray devices for pulmonary inhalation mainly convert liquid preparations such as drugs, nutrients or nicotine liquids into tiny particles that can be inhaled into the human body through breathing, thereby achieving the purpose of painless, rapid and effective treatment.

[0003] When using the existing nebulizer, the patient holds the upper shell with one hand and rotates the rotating part with the other hand to activate the nebulizer to release the spray. Since the nebulizer requires the cooperation of both hands to activate, the operation is relatively cumbersome and inconvenient, especially for a specific group of people with hand disabilities, and its actuation mechanism is not reasonable.

[0004] Based on the above problems, the applicant proposed a spray device that can be actuated by pressing with one hand, which is more convenient to operate and compatible with use by all kinds of groups. Summary of the invention

[0005] The object of the present invention is to provide a spray device and an actuation method thereof, which can facilitate operation and use by patients by changing the two-handed rotation actuation to a single-handed pressing actuation.

[0006] The purpose of the present invention is achieved by the following technical solutions: A spray device, comprising: An upper shell body, wherein a spray mechanism is arranged in the upper shell body; An inner cylinder body is slidably disposed in the upper shell body along the axial direction of the device; A container rack, slidably disposed in the inner cylinder along the axial direction of the device, and used for mounting a liquid storage container; A transmission mechanism, connected to the inner cylinder and the container frame respectively, for driving the two to move synchronously in opposite directions; Wherein, the upward movement of the inner cylinder can prompt the transmission mechanism to drive the container rack to move downward, and the device is in a first state; the downward movement of the inner cylinder can prompt the transmission mechanism to drive the container rack to move upward, and the device is in a second state.

[0007] In some embodiments, the transmission mechanism comprises: A first rack portion, arranged on the top of the inner cylinder along the axial direction of the device; A second rack portion, arranged on the top of the container frame along the axial direction of the device; A gear is rotatably disposed in the upper housing, and two sides of the gear are respectively meshed with the first rack portion and the second rack portion.

[0008] In some embodiments, the upper housing is provided with beams disposed on both sides of the gear; The crossbeam is used to support the rotating shaft on which the gear is mounted, and is also used to guide the first rack portion and limit the maximum upward movement stroke of the inner cylinder, thereby controlling the ejection volume of the device.

[0009] In some embodiments, a first guide unit is disposed between the upper shell and the inner cylinder, and a second guide unit is disposed between the inner cylinder and the container rack.

[0010] In some embodiments, a spring is further included, and the spring is disposed on the inner side of the container rack to provide elastic force for resetting the container rack.

[0011] In some embodiments, a support seat is provided below the spring, and a plurality of escape openings are evenly spaced around the outer periphery of the inner cylinder; Part of the support seat passes through the avoidance opening and is fixedly connected to the upper shell.

[0012] In some embodiments, the liquid storage container is made of a transparent material; In the second state, the avoidance opening can be used to observe the remaining liquid in the liquid storage container.

[0013] In some embodiments, a lower shell is further included, which is disposed below the upper shell and is detachably fixedly connected to the inner cylinder.

[0014] In some embodiments, a plurality of protrusions are evenly distributed on the outer circumference of the bottom of the inner cylinder; The protrusion is used to interfere and fix with the inner wall of the lower shell, and is also used to abut against the lower end of the upper shell to limit the maximum upward movement of the inner cylinder, thereby controlling the spraying amount of the device.

[0015] In some embodiments, a locking mechanism is provided between the inner cylinder and the container frame, and the locking mechanism comprises: A first locking hook is arranged on the inner wall of the inner cylinder; An elastic arm is arranged at the top of the container frame along the axial direction of the device, and a second locking hook is arranged on the elastic arm and is opposite to the first locking hook in the upper and lower directions; The operation key is arranged on the side wall of the upper shell, and the operation key has a pressing shaft portion that contacts the elastic arm and an anti-slip portion that is buckled with the upper shell.

[0016] In some embodiments, an anti-accidental-touch member is disposed between the operation key and the upper shell, and the anti-accidental-touch member is used to provide a force opposite to the pressing direction.

[0017] In some embodiments, the inner top of the upper shell is provided with a tube cavity, and the spray mechanism includes: A flow guiding member is arranged in the lumen; a liquid infusion tube, one end of which is disposed in the liquid storage container and the other end of which is disposed in the flow guide member, and the liquid infusion tube is fixedly connected to the container frame; a sealing unit, disposed at the bottom of the flow guiding member, for sealing the infusion tube extending into the flow guiding member; The atomizing unit is arranged on the top of the flow-guiding component and is used for converting the liquid into mist droplets and releasing them outwards.

[0018] In some embodiments, a plurality of fixed wings are evenly spaced around the outer circumference of the flow guide component, and a lap ring is provided above the fixed wings; The flow-guiding member is inserted into the lumen from top to bottom until the lap ring abuts against the upper end of the lumen and the fixing wing is fixed by interference with the inner wall of the lumen.

[0019] In some embodiments, a nozzle is disposed on the periphery of the atomization unit, air inlet holes are disposed on both sides of the nozzle, and a plurality of ventilation grooves are evenly spaced on the inner wall of the nozzle.

[0020] A method for actuating a spray device comprises the following steps: S1, upper shell of the one-handed holding device; S2, the inner cylinder of the pressing device drives it to move upward to the first predetermined position, and the container rack is driven to move downward to the second predetermined position synchronously through the transmission mechanism, so that the device is in the first state; S3, cancel the pressing, so that the inner cylinder and the container frame of the device are respectively reset to the initial position, and the device quickly switches from the first state to the second state and releases the spray outward; S4, repeating steps S2 to S3, the device realizes the continuous spraying function.

[0021] In some embodiments, in step S2, the pressing method is: pressing the inner cylinder with fingers or pressing the inner cylinder onto a table / wall.

[0022] In some embodiments, in step S3, after the pressing is cancelled, the device can be temporarily maintained in the first state through the locking mechanism, and can be quickly switched to the second state after being unlocked.

[0023] Compared with the prior art, the beneficial effects of the present invention include at least: changing the two-handed rotation actuation to one-handed pressing actuation through a transmission mechanism, which is quick and easy to operate, convenient for patients to use, and the actuation mode of the device is compatible with all kinds of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a perspective view of the spray device of the present invention.

[0025] Figure 2 It is a bottom view of the spray device of the present invention.

[0026] Figure 3 4 is a cross-sectional view of the spray device of the present invention taken along the AA direction in the first state.

[0027] Figure 4 BB is a cross-sectional view of the spray device of the present invention in the first state.

[0028] Figure 5 4 is a cross-sectional view of the spray device of the present invention taken along the AA direction in the second state.

[0029] Figure 6 BB is a cross-sectional view of the spray device of the present invention in the second state.

[0030] Figure 7 It is a structural schematic diagram of the transmission mechanism of the spray device of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the locking mechanism of the spray device of the present invention.

[0032] Fig. 9 It is a structural schematic diagram of the spray mechanism of the spray device of the present invention.

[0033] Fig.10 It is a schematic structural diagram of the first guide unit and the second guide unit of the spray device of the present invention.

[0034] In the figure: 1, upper shell; 101, tube cavity; 2, inner cylinder; 201, avoidance port; 202, protrusion 3, container frame; 4, transmission mechanism; 401, first rack portion; 402, second rack portion; 403, gear; 404, beam; 405, rotating shaft; 5, spray mechanism; 501, flow guide member; 5011, fixed wing; 5012, lap ring; 502, infusion tube; 503, sealing unit; 50 4. Atomization unit; 6. Spring; 7. Support seat; 8. Lower shell; 9. Locking mechanism; 901. First locking hook; 902. Elastic arm; 903. Second locking hook; 904. Operation key; 9041. Pressing shaft part; 9042. Anti-slip part; 10. Anti-accidental touch part; 11. First guide unit; 12. Second guide unit; 13. Liquid storage container; 14. Nozzle; 1401. Air inlet; 1402. Vent groove;. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0036] The words expressing positions and directions described in the present invention are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of the present invention.

[0037] See also Figures 1 to 10 As shown, the present invention discloses a spray device, which includes an upper shell 1, an inner cylinder 2, a container frame 3 and a transmission mechanism 4.

[0038] Among them, Figure 1 As shown, the upper shell 1 is the gripping part of the device, and its shape is roughly cylindrical, which is convenient for the patient to hold with one hand. In some embodiments, the surface of the upper shell 1 can be provided with special functional layers (not shown) such as anti-slip layer, waterproof layer, conductive layer, etc., to meet additional requirements such as anti-slip, waterproof, and static electricity conduction.

[0039] like Figures 3 to 6 As shown, a spray mechanism 5 is disposed in the upper shell 1. When the device is activated, the spray mechanism 5 can release spray outwards, thereby realizing the function of atomization treatment.

[0040] See also Fig. 9 As shown, in the present application, the spray mechanism 5 includes a flow-guiding member 501, a liquid infusion tube 502, a sealing unit 503 and an atomizing unit 504. Among them, the flow-guiding member 501 is arranged in the tube cavity 101 of the inner top of the upper shell 1, and the flow-guiding member 501 has an elongated channel, which can form positive / negative pressure by cooperating with the liquid infusion tube 502 to slide up and down. One end (lower end) of the liquid infusion tube 502 pierces the liquid storage container 13 and contacts the liquid inside it, and the other end (upper end) extends into the flow-guiding member 501, and a one-way valve is arranged at the port to unidirectionally draw the liquid in the liquid storage container 13 to the spray mechanism 5 and pump it out. The sealing unit 503 is arranged at the bottom of the flow-guiding member 501, and is used to seal the liquid infusion tube 502 extending into the flow-guiding member 501, and ensure the sealed environment in the channel. The atomizing unit 504 is arranged at the top of the flow-guiding member 501, and is used to convert the liquid into mist droplets and release them outward.

[0041] Or Figures 3 to 6 As shown, the inner cylinder 2 is an active part for actuating the device, and is slidably arranged in the upper shell 1 along the axial direction of the device. The device can be actuated by controlling the inner cylinder 2 to slide up and down.

[0042] In the present application, the inner cylinder 2 has an exposed portion extending from the lower end of the upper shell 1. The patient can press the exposed portion with one hand to cause the inner cylinder 2 to slide upward. If it needs to slide downward and reset, it can cooperate with an elastic reset member, such as a spring 6, as described below. Of course, in other embodiments, a sliding key (not shown) connected to the inner cylinder 2 can also be provided on the upper shell 1, and the device can also be actuated by moving the sliding key up and down with one hand.

[0043] The container rack 3 is used as an actuating follower of the device, and is slidably disposed in the inner cylinder 2 along the axial direction of the device. The container rack 3 is used to install the liquid storage container 13 and also to drive the infusion tube 502 to move synchronously.

[0044] In the present application, the container rack 3 can be injection molded in the middle of the infusion tube 502, so as to achieve a fixed connection between the container rack 3 and the infusion tube 502. In addition, the container rack 3 has a snap-fit ​​portion that can be detachably fixed to the liquid storage container 13, which is convenient for replacing a new liquid storage container 13 after the medication is finished, thereby reducing the treatment cost.

[0045] The transmission mechanism 4 is connected to the inner cylinder 2 and the container frame 3 respectively, and is used to drive the two to move synchronously in opposite directions.

[0046] See also Figure 7 As shown, in the present application, the transmission mechanism 4 includes a first rack portion 401, a second rack portion 402 and a gear 403. The first rack portion 401 is arranged at the top of the inner cylinder 2 along the axial direction of the device, the second rack portion 402 is arranged at the top of the container rack 3 along the axial direction of the device, and the gear 403 is rotatably arranged in the upper shell 1, and its two sides are respectively engaged with the first rack portion 401 and the second rack portion 402. The first rack portion 401 is driven upward by the inner cylinder 2, and the gear 403 will drive the second rack portion 402 to move downward, thereby prompting the container rack 3 to move downward; conversely, the second rack portion 402 is driven upward by the container rack 3, and the gear 403 will drive the first rack portion 401 to move downward, thereby prompting the inner cylinder 2 to move downward.

[0047] Preferably, there are two transmission mechanisms 4, which are symmetrically arranged about the infusion tube 502, so as to improve the stability of actuation, and the first rack portion 401 can be integrally formed with the inner cylinder 2, and the second rack portion 402 can be integrally formed with the container frame 3. It is worth mentioning that the second rack portions 402 of the two transmission mechanisms 4 can be combined into one, and a hole for the infusion tube 502 to pass through is reserved in the center, so as to further improve the bonding force between the infusion tube 502 and the container frame 3, and at the same time solve the problem of deformation of the excessively long infusion tube 502 during long-term use.

[0048] The actuation principle of the spray device of the present application is as follows: pressing the inner cylinder 2 with one hand drives it to move up to the first predetermined position, and at the same time, the container frame 3 is driven to move down to the second predetermined position through the transmission mechanism 4. During this period, a negative pressure is formed in the spray mechanism 5 (the channel of the guide component 501), and the liquid in the liquid storage container 13 is sucked to the spray mechanism 5. At this time, the device is in the first state, that is, the liquid absorption state; after the pressing is released, the container frame 3 moves up and returns to the initial position under the action of elastic force, and at the same time, the inner cylinder 2 is driven to move down and returns to the initial position through the transmission mechanism 4. During this period, a high pressure is formed in the spray mechanism 5 (the channel of the guide component 501), and the liquid in the spray mechanism 5 is pumped out. At this time, the device is in the second state, that is, the liquid spraying state.

[0049] Compared with the actuation mode of the existing spray device, the spray device changes the two-handed rotation actuation to a single-handed pressing actuation through the transmission mechanism 4, which is quick and easy to operate, convenient for patients to use, and the actuation mode of the device is compatible with all kinds of people.

[0050] See also Figure 3 , Figure 5 and Figure 7 As shown, in some embodiments, a crossbeam 404 is disposed in the upper shell 1 and is disposed on both sides of the gear 403 , wherein an axial groove is disposed on the crossbeam 404 for supporting a rotating shaft 405 for installing the gear 403 , so that the gear 403 is rotatably installed in the upper shell 1 .

[0051] Furthermore, the crossbeam 404 is also used to guide the first rack part 401 and limit the maximum upward movement of the inner cylinder 2. Specifically, the spacing between the two crossbeams 404 is equal to the width of the first rack part 401, so that both sides of the first rack part 401 are always constrained by the crossbeam 404 in the sliding direction, thereby improving its stability during the transmission process. In addition, when the inner cylinder 2 moves up to the highest point, the lower end of the crossbeam 404 can collide with the upper end of the inner cylinder 2 to prevent the infusion tube 502 or the atomization unit 504 from being damaged by the collision due to over-travel, thus playing a primary limiting role and limiting the spray volume of the device at the same time, so that the atomization dose remains consistent each time.

[0052] The beam is fully conducive to its own layout design within a limited space, achieving the effect of one object with multiple uses, effectively simplifying the device structure and reducing space occupancy.

[0053] See also Figures 3 to 6 As shown, the spray device further includes a spring 6, which is arranged on the inner side of the container frame 3 and is used to provide elastic force for resetting the container frame 3. Simply put, when the patient presses the inner cylinder 2 to move upward, the container frame 3 moves downward and puts the device in the first state, and at the same time, the spring 6 is compressed and stores force; at the moment when the patient cancels the pressing, the spring 6 can cause the container frame 3 to move upward and put the device in the second state, and at the same time, the inner cylinder 2 moves downward, and the device returns to the initial state.

[0054] Combination Figure 7 As shown, in some embodiments, a support seat 7 is provided below the spring 6, and the support seat 7 is also located in the inner cylinder 2, and a plurality of avoidance openings 201 are evenly spaced on the outer periphery of the inner cylinder 2. Part of the support seat 7 passes through the avoidance openings 201 and is fixedly connected to the upper shell 1, thereby avoiding the impact of the slippage of the inner cylinder 2 when the installation is completed.

[0055] Furthermore, the escape port 201 is located on the exposed portion of the inner cylinder 2, and is also used to observe the remaining liquid in the liquid storage container 13. Figure 1 and Figure 3 As shown, in the second state (initial state), the avoidance opening 201 is equivalent to a window, and the patient can observe the liquid storage container 13 through the avoidance opening 201. In the present application, the liquid storage container 13 is made of a transparent material, for example, it can be a transparent, non-toxic plastic material such as TPE, PVC, PP, etc.

[0056] The avoidance opening 201 also serves as a window while avoiding the position, and is fully beneficial to the layout design within a limited space, and also achieves the effect of one thing for multiple uses, and effectively reduces the adverse effects on the strength of the inner cylinder 2.

[0057] See also Figures 1 to 6 As shown, in some embodiments, the spray device further includes a lower shell 8, which is disposed below the upper shell 1 and is detachably fixedly connected to the inner cylinder 2. In the present application, the lower shell 8 can protect the liquid storage container 13 to prevent it from being contaminated or damaged; on the other hand, the lower shell 8 transfers the pressing force application part from the inner cylinder 2 to itself, which increases the pressure area and is more convenient to operate. In the first state of the device, the distance between the upper shell 1 and the lower shell 8 is approximately 8mm-12mm, and in the second state of the device, the upper shell 1 and the lower shell 8 are against each other.

[0058] Specifically, a plurality of protrusions 202 are evenly distributed on the outer periphery of the bottom of the inner cylinder 2, and the protrusions 202 are used to interfere with and fix with the inner wall of the lower shell 8, so as to realize a detachable fixed connection between the lower shell 8 and the inner cylinder 2, and facilitate the patient to replace a new liquid storage container 13. In addition, the protrusions 202 are also used to limit the maximum upward movement of the inner cylinder 2. Specifically, the protrusions 202 are between the inner diameter and the outer diameter of the inner cylinder 2. When the inner cylinder 2 moves up to the highest point, the protrusions 202 can contact the lower end of the outer shell to prevent the infusion tube 502 or the atomization unit 504 from being damaged by collision due to over-travel, which plays a secondary limiting role and limits the spraying amount of the device at the same time, so that the atomization dose is kept consistent each time.

[0059] It should be noted that the cross beam 404 and the protrusion 202 can limit the maximum upward movement stroke of the inner cylinder 2 independently, or can be combined to jointly limit the maximum upward movement stroke of the inner cylinder 2.

[0060] See also Figure 3 , Figure 5 and 8 As shown, in some embodiments, a locking mechanism 9 is provided between the inner cylinder 2 and the container frame 3, and the locking mechanism 9 is used to lock the device in a first state, and can instantly enter a second state after being unlocked, so as to facilitate patient operation.

[0061] In the present application, the locking mechanism 9 includes a first lock hook 901, an elastic arm 902, a second lock hook 903 and an operating key 904. The first lock hook 901 is arranged on the inner wall of the inner cylinder 2, the elastic arm 902 is arranged on the top of the container frame 3 along the axial direction of the device, the elastic arm 902 is provided with a second lock hook 903 which is opposite to the first lock hook 901 in the upper and lower directions, and the operating key 904 is arranged on the side wall of the upper shell 1, and the operating key 904 has a pressing shaft portion 9041 which contacts the elastic arm 902 and an anti-slip portion 9042 which is buckled with the upper shell 1. In the initial state, the first lock hook 901 is located below the second lock hook 903, and the pressing shaft portion 9041 of the operating key 904 is kept fixed by the elastic arm 902 and the anti-slip portion 9042. When the device enters the first state, the inner cylinder 2 drives the first lock hook 901 to jump over the second lock hook 903, and then engages and locks with it under the action of the spring 6; when the user touches the operation key 904, the elastic arm 902 is squeezed inward by the pressing shaft part 9041, causing the second lock hook 903 to separate from the first lock hook 901. Under the action of the spring 6, the container rack 3 drives the infusion tube 502 to move up quickly, and the device enters the second state.

[0062] Furthermore, an anti-mistaken touch member 10 is provided between the operation key 904 and the upper shell 1. In the present application, due to the size of the installation space, the anti-mistaken touch member 10 can be a relatively small elastic member such as an elastic sheet, a disc spring, etc. The anti-mistaken touch member 10 is used to provide a force opposite to the pressing direction. Only after the patient overcomes the reaction force of the anti-mistaken touch member 10, can the pressing shaft portion 9041 be driven to move toward the elastic arm 902, thereby avoiding the phenomenon of mis-spraying caused by mis-touch. On the other hand, the reaction force of the anti-mistaken touch member 10 can also make the anti-detachment portion 9042 tightly buckled to the inner wall of the upper shell 1, and the dual effect further improves the stability of the operation key 904, and avoids the problem of the operation key 904 being loosened due to the decrease in elasticity of the elastic arm 902.

[0063] See also Fig.10 As shown, in some embodiments, a first guide unit 11 is provided between the upper shell 1 and the inner cylinder 2, for guiding the inner cylinder 2 to improve the smoothness of its sliding. In the present application, the first guide unit 11 includes a guide groove and a slider, which are slidably matched. The guide groove is provided on the inner wall of the upper shell 1, and the slider is provided on the outer periphery of the inner cylinder 2; or the guide groove is provided on the outer periphery of the inner cylinder 2, and the slider is provided on the inner wall of the upper shell 1.

[0064] Similarly, a second guide unit 12 is provided between the inner cylinder 2 and the container frame 3 to guide the container frame 3 and improve the sliding stability thereof. The structure of the second guide unit 12 is similar to that of the first guide unit 11 and will not be repeated here.

[0065] See also Fig. 9 As shown, in some embodiments, a plurality of fixed wings 5011 are evenly spaced at intervals on the outer periphery of the flow-guiding member 501, and a lap ring 5012 is provided above the fixed wings 5011. When installed, the flow-guiding member 501 is inserted into the lumen 101 from top to bottom until the lap ring 5012 abuts against the upper end of the lumen 101. In the present application, there are four fixed wings 5011, and the fixed wings 5011 can form a line interference with the inner wall of the lumen 101. Compared with the conventional surface interference fixation, it can effectively reduce the assembly resistance and ensure the force balance of the flow-guiding member 501. The lap ring 5012 is used to limit the insertion depth of the flow-guiding member 501 and has an anti-falling effect, so that the sealing environment formed by the channel of the flow-guiding member and the infusion tube 502 is not affected, thereby realizing a precise quantitative spray function.

[0066] See also Figure 4 and Figure 6 As shown, in some embodiments, a nozzle 14 is provided on the periphery of the atomization unit 504, and air inlet holes 1401 are provided on both sides of the nozzle 14. The air inhaled from the air inlet holes 1401 can come into contact with the mist droplets released by the atomization unit 504, while further breaking up the mist droplets and providing a certain auxiliary power, thereby improving the depth of spray delivery.

[0067] In addition, a plurality of ventilation grooves 1402 are evenly spaced on the inner wall of the nozzle 14, so that the air sucked in from the air inlet 1401 can flow smoothly to the atomization unit 504, avoiding the air path blockage caused by tolerance problems during the assembly of the atomization unit 504 and the nozzle 14, and ensuring that the gas path from the air inlet 1401 to the nozzle of the atomization unit 504 is unobstructed.

[0068] The present invention also discloses a method for actuating a spray device, comprising steps S1 to S4, wherein: S1, upper shell 1 of a one-handed holding device; S2, the inner cylinder 2 of the pressing device drives it to move upward to the first predetermined position, and the container rack 3 is driven to move downward to the second predetermined position synchronously through the transmission mechanism 4, so that the device is in the first state; S3, cancel the pressing, so that the inner cylinder 2 and the container frame 3 of the device are respectively reset to the initial position, and the device quickly switches from the first state to the second state and releases the spray outward; S4, repeating steps S2 to S3, the device realizes the continuous spraying function.

[0069] In some embodiments, in step S2, the pressing method is: pressing the inner cylinder 2 with a finger or pressing the inner cylinder 2 onto a table / wall, thereby realizing a single-handed quick actuation function.

[0070] In some embodiments, in step S3, after the pressing is canceled, the device can be temporarily maintained in the first state through the locking mechanism 9, and quickly switched to the second state after unlocking. By adding a temporary locking function, the patient can independently choose the spraying time after the device completes the liquid absorption, which further facilitates the patient's use.

[0071] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A spray device, characterized in that: include: An upper shell (1), wherein a spray mechanism (5) is arranged inside the upper shell (1); An inner cylinder (2) is slidably disposed in the upper shell (1) along the axial direction of the device; A container rack (3) is slidably arranged in the inner cylinder (2) along the axial direction of the device, and the container rack (3) is used to mount a liquid storage container (13); A transmission mechanism (4) is respectively connected to the inner cylinder (2) and the container frame (3) and is used to drive the two to move synchronously in opposite directions; The upward movement of the inner cylinder (2) can prompt the transmission mechanism (4) to drive the container rack (3) to move downward, and the device is in a first state; the downward movement of the inner cylinder (2) can prompt the transmission mechanism (4) to drive the container rack (3) to move upward, and the device is in a second state.

2. The spray device according to claim 1, characterized in that The transmission mechanism (4) comprises: A first rack portion (401) is arranged at the top of the inner cylinder (2) along the axial direction of the device; A second rack portion (402) is arranged at the top of the container frame (3) along the axial direction of the device; A gear (403) is rotatably disposed in the upper housing (1), and two sides of the gear (403) are respectively meshed with the first rack portion (401) and the second rack portion (402).

3. The spray device according to claim 2, characterized in that The upper housing (1) is provided with crossbeams (404) disposed on both sides of the gear (403); The crossbeam (404) is used to support the rotating shaft (405) on which the gear (403) is mounted, and is also used to guide the first rack portion (401) and limit the maximum upward movement stroke of the inner cylinder (2), thereby controlling the ejection volume of the device.

4. The spray device according to claim 1, characterized in that A first guide unit (11) is provided between the upper shell (1) and the inner cylinder (2), and a second guide unit (12) is provided between the inner cylinder (2) and the container frame (3).

5. The spray device according to claim 1, characterized in that It also comprises a spring (6), wherein the spring (6) is arranged on the inner side of the container rack (3) and is used to provide elastic force for resetting the container rack (3).

6. The spray device according to claim 5, characterized in that A support seat (7) is provided below the spring (6), and a plurality of avoidance openings (201) are evenly spaced on the outer circumference of the inner cylinder (2); Part of the support seat (7) passes through the avoidance opening (201) and is fixedly connected to the upper shell (1).

7. The spray device according to claim 6, characterized in that The liquid storage container is made of transparent material; In the second state, the avoidance opening (201) can be used to observe the remaining liquid in the liquid storage container.

8. The spray device according to claim 1, characterized in that It also comprises a lower shell (8), which is arranged below the upper shell (1) and is detachably fixedly connected to the inner cylinder (2).

9. The spray device according to claim 8, characterized in that A plurality of protrusions (202) are evenly distributed on the outer circumference of the bottom of the inner cylinder (2); The protrusion (202) is used to interfere with and fix with the inner wall of the lower shell (8), and is also used to abut against the lower end of the upper shell (1) to limit the maximum upward movement of the inner cylinder (2), thereby controlling the spray volume of the device.

10. The spray device according to claim 5, characterized in that A locking mechanism (9) is provided between the inner cylinder (2) and the container frame (3), and the locking mechanism (9) comprises: A first locking hook (901) is arranged on the inner wall of the inner cylinder (2); An elastic arm (902) is arranged at the top of the container frame (3) along the axial direction of the device, and a second locking hook (903) is arranged on the elastic arm (902) and is opposite to the first locking hook (901) in the upper and lower directions; An operating key (904) is arranged on a side wall of the upper shell (1), and the operating key (904) comprises a pressing shaft portion (9041) that contacts the elastic arm (902) and an anti-slip portion (9042) that buckles with the upper shell (1).

11. The spray device according to claim 10, characterized in that An anti-mistaken-touch component (10) is provided between the operation key (904) and the upper shell (1), and the anti-mistaken-touch component (10) is used to provide a force opposite to the pressing direction.

12. A method for actuating a spray device, characterized in that: The following steps are involved: S1, an upper shell (1) of a one-handed holding device; S2, the inner cylinder (2) of the pressing device drives it to move upward to a first predetermined position, and the transmission mechanism (4) drives the container frame (3) to move downward to a second predetermined position synchronously, so that the device is in a first state; S3, the pressing is canceled, so that the inner cylinder (2) and the container frame (3) of the device are respectively reset to their initial positions, and the device quickly switches from the first state to the second state and releases the spray outward; S4, repeating steps S2 to S3, the device realizes the continuous spraying function.

13. The method for actuating a spray device according to claim 12, characterized in that: In step S2, the pressing method is: pressing the inner cylinder (2) with fingers or pressing the inner cylinder (2) onto a table or wall.

14. The method for actuating a spray device according to claim 12, characterized in that: In step S3, after the pressing is cancelled, the device can be temporarily kept in the first state through the locking mechanism (9), and can be quickly switched to the second state after being unlocked.

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