Soft mist device

Abstract

The present application discloses a soft mist device, comprising an upper housing and a main rotating body. The upper housing is rotatably connected to the main rotating body, a counting assembly is arranged on the outer wall of the main rotating body, and the counting assembly comprises a screw connected to the main rotating body and a sliding block moving along the screw; a first groove is formed on the inner wall of the upper housing, and the first groove is configured to drive the screw rod to rotate, thereby driving the sliding block to move to achieve a counting function.

Description

A soft mist device Technical Field

[0001] The present application relates to the field of drug delivery devices, and in particular to a soft mist device. Background Art

[0002] With the worsening of environmental pollution, oral and respiratory diseases are becoming increasingly serious. For these diseases, inhalation drug delivery is a preferred treatment option. Traditionally, inhalation drug delivery devices primarily transform liquid preparations such as drugs, nutrients, or nicotine solution into tiny particles that can be inhaled by the human body, achieving the goal of painless, rapid, and effective treatment.

[0003] Application Contents

[0004] In various embodiments of the present application, a soft mist device is provided, including an upper shell and a main rotor, the upper shell is rotatably connected to the main rotor, a counting assembly is provided on the outer wall of the main rotor, the counting assembly includes a screw connected to the main rotor and a slider moving along the screw; a first groove is provided on the inner wall of the upper shell, the first groove is configured to drive the screw to rotate, thereby driving the slider to move to realize the counting function.

[0005] A soft mist device includes a spray assembly arranged inside an upper shell, the spray assembly including a matching part, an elastic part and a nozzle. The matching part and the elastic part are sealed by oblique interference to form a chamber for accommodating a fluid, and the nozzle is retained in the chamber by the elastic part; wherein, the nozzle can be triggered to spray once every half-turn of the upper shell.

[0006] A soft mist device includes a pipe rack assembly arranged inside a main rotating body, the pipe rack assembly including a fixing frame and an infusion tube passing through the fixing frame; wherein, the fixing frame is used to be clamped and fixed with a medicine bottle, one end of the infusion tube is inserted into the medicine bottle, and the other end is used to be connected to the spray assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG1 is a schematic structural diagram of a soft mist device according to some embodiments of one or more embodiments.

[0008] FIG2 is a schematic diagram of the assembly structure of the upper housing and the main rotating body according to some embodiments of one or more embodiments.

[0009] FIG3 is a schematic diagram of the exploded structure of the upper housing and the main rotating body according to some embodiments of one or more embodiments.

[0010] FIG4 is a schematic diagram of the structure of a counting component according to some embodiments of one or more embodiments.

[0011] FIG5 is a schematic diagram of the structure inside the upper housing according to some embodiments of one or more embodiments.

[0012] 6a to 6c are schematic diagrams showing the distribution of first grooves according to some embodiments of one or more embodiments.

[0013] FIG7 is a schematic diagram of a locking structure between the upper housing and the main rotating body according to some embodiments of one or more embodiments.

[0014] FIG8 is a schematic diagram of cooperation between a counting assembly and a locking element according to some embodiments of one or more embodiments.

[0015] FIG9 is a schematic diagram of the installation structure of the locking member in FIG8 .

[0016] FIG10 is a schematic diagram of another locking structure of the upper housing and the main rotating body according to some embodiments of one or more embodiments.

[0017] FIG. 11 is a schematic diagram illustrating cooperation between a counting assembly and another locking element according to some embodiments of one or more embodiments.

[0018] FIG12 is a schematic diagram of the installation position of the torsion spring in FIG11 .

[0019] FIG13 is a schematic diagram of the installation structure of the locking member in FIG11 .

[0020] FIG. 14 is a schematic diagram illustrating the structure of a jetting assembly according to some embodiments of one or more embodiments.

[0021] FIG15 is a schematic diagram of a partial structure of a jetting assembly according to some embodiments of one or more embodiments.

[0022] FIG16 is a schematic diagram of the exploded structure of FIG15 .

[0023] FIG. 17 is a partial structural diagram of another jetting assembly according to some embodiments of one or more embodiments.

[0024] FIG18 is a schematic diagram of the exploded structure of FIG17 .

[0025] FIG19 is a schematic structural diagram of an infusion tube according to one or more embodiments when the infusion tube does not pierce the bottle cap.

[0026] FIG20 is a schematic diagram of the structure after the infusion tube pierces the bottle cap according to some embodiments of one or more embodiments.

[0027] FIG. 21 is a schematic diagram illustrating the cooperation between a spike structure and an inclined cavity bottom according to some embodiments of one or more embodiments.

[0028] FIG22 is a schematic diagram of the connection structure between the infusion tube and the spray assembly according to one or more embodiments.

[0029] FIG. 23 is a schematic diagram of the structure of a pump unit according to some embodiments of one or more embodiments. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures represent identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0031] The words expressing position and direction described in this application are all explained based on the accompanying drawings as examples, but can be changed as needed, and all changes are included in the scope of protection of this application.

[0032] 1 to 5 , the present application discloses a soft mist device, which includes an upper shell 1 , a main rotating body 2 and a counting assembly 3 .

[0033] The upper housing 1 and the main rotor 2 are both roughly cylindrical structures, assembled one above the other, and can rotate relative to each other. It should be noted that the device releases soft mist once every half-turn of the upper housing 1 relative to the main rotor 2. This is prior art and will not be described in detail.

[0034] The counting assembly 3 is disposed on the outer wall of the main rotor 2. This assembly includes a screw 31 connected to the main rotor 2 and a slider 32 that moves along the screw 31. In this application, the screw 31 extends axially along the device and is capable of circumferential rotation. The slider 32 is sleeved on the screw 31 and threadedly connected thereto. Correspondingly, a first groove 11 is provided on the inner wall of the upper housing 1. This groove is configured to drive the screw 31 to rotate. Specifically, when the upper housing 1 rotates, the first groove 11 contacts the screw 31 and drives the screw 31 to rotate. The screw 31 then drives the slider 32 to move. In conjunction with the scale lines 23 on the side, the counting function is realized, allowing patients to clearly understand information such as drug consumption and the remaining life of the device.

[0035] As shown in Figures 3 to 5 , in some embodiments, a trigger unit 33 is provided at one end of the screw 31 near the main rotor 2. The trigger unit 33 can be integrally formed at the top of the screw 31. The trigger unit 33 only partially engages the first groove 11, thereby controlling the rotation of the screw 31 within a constant range. For example, each time the first groove 11 partially engages the trigger unit 33, the screw 31 can only rotate half a turn.

[0036] As shown in Figure 4, the trigger unit 33 includes a first trigger portion 331 and a second trigger portion 332. The first trigger portion 331 is a flat plate structure arranged along the central axis of the screw 31, with teeth on either side thereof that mate with the first groove 11. The first trigger portion 331 is configured to engage with the first groove 11. When the upper housing 1 rotates, the first groove 11 contacts the first trigger portion 331, driving the screw 31 to rotate. The second trigger portion 332 is also a flat plate structure arranged along the central axis of the screw 31, but perpendicularly intersecting the first trigger portion 331. The second trigger portion 332 is configured to abut against the inner wall of the upper housing 1 to prevent the top of the screw 31 from shaking or wobbling during rotation, thereby improving the stability of the transmission between the trigger unit 33 and the screw 31. Note that the second touch portion 332 does not contact the first groove 11 to avoid interfering with the transmission between the first groove 11 and the first touch portion 331. In this application, the length of the second touch portion 332 can be set to be smaller than the length of the first touch portion 331 to avoid contact with the first groove 11.

[0037] In some embodiments, the number of the first grooves 11 is one or N, where N is a positive integer.

[0038] For example, Figure 6b illustrates a standard counting design. In this design, there are two first grooves 11, one located on half the inner wall of the upper housing 1, and the other located on the other half. Therefore, each half-turn of the upper housing 1 causes the screw 31 to rotate half a turn, causing the slider 32 to move a distance, which is counted once, and the device releases a soft mist.

[0039] Alternatively, as shown in Figure 6a, there is exactly one first groove 11, located anywhere along the inner circumference of the upper housing 1. Since there is only one first groove 11, each rotation of the upper housing 1 only causes the screw 31 to rotate half a turn, moving the slider 32 a certain distance and counting once, but the device actually releases two doses of soft mist. In other words, by reducing the number of first grooves 11 without modifying the counting assembly 3, the counting assembly 3 can be used for more doses or more actuations (to release the same number of doses, the slider 32 moves half the distance).

[0040] For another example, in Figure 6c, there are four first grooves 11, two of which are spaced apart on a half-circle of the inner wall of the upper housing 1, and the other two are spaced apart on the other half-circle of the inner wall of the upper housing 1. Therefore, each half-turn of the upper housing 1 causes the screw 31 to rotate one turn, causing the slider 32 to count twice, but the device actually releases a single soft mist. It is understood that, by increasing the number of first grooves 11 without modifying the counting assembly 3, the counting assembly 3 can be used for fewer doses or fewer actuations (for the same number of soft mist releases, the slider 32 travels twice).

[0041] In summary, under the same rotation control, the upper shell 1 can adjust the movement stroke of the slider 32 by setting different numbers of first grooves 11, so as to meet the design requirements of different dosages of medicine bottles 9 or actuation counting, thereby reducing the modification cost of counting devices of different batches or models and improving the scope of application.

[0042] As shown in Figure 4, in some embodiments, the outer wall of the main rotator 2 is provided with a first mounting portion 21 and a second mounting portion 22, sequentially arranged along the axial direction of the device. A screw 31 is rotatably connected to the first and second mounting portions 22, respectively. For example, the first mounting portion 21 can be a shaft hole seat, and the second mounting portion 22 can be a C-shaped holder. One end of the screw 31 is inserted into the shaft hole seat, and the other end is directly inserted into the C-shaped holder. This design allows for quick installation and removal of the screw 31.

[0043] Furthermore, the screw rod 31 is provided with a limiting portion 311 close to the second mounting portion 22 for limiting its own axial movement, thereby preventing the transmission between the first groove 11 and the trigger unit 33 from being affected, thereby improving the stability of the device counting.

[0044] As shown in FIG2 , in some embodiments, a scale line 23 is provided on one side of the counting assembly 3 for the slider 32 to move and count. Taking 120 sprays as an example, the bottom of the scale line 23 is marked with 120, corresponding to a full dose of the drug in the device, and the top of the scale line 23 is marked with 0, corresponding to an empty dose of the drug in the device.

[0045] As shown in Figures 7 to 13 , in some embodiments, the counting assembly 3 further includes a push arm 34 integrally formed with one side of the slider 32, and the push arm 34 extends toward the upper housing 1. Due to limitations on the device's lifespan or to meet hygiene and safety requirements, when the counting function of the device fails, a portion of the push arm 34 enters between the upper housing 1 and the main rotator 2 to restrict relative rotation between the two, thereby achieving the purpose of locking the device.

[0046] As shown in Figures 7 to 9, in some embodiments, the inner wall of the upper shell 1 is further provided with a second groove 12. The second groove 12 is located in the bottom area of ​​the upper shell 1 and is continuous in the circumferential direction, so as to rotatably cooperate with the first protrusion 25 on the main rotor 2 to form an anti-slip structure. In addition, a third groove 13 is provided above the second groove 12, and is configured to cooperate with the locking member 4 to achieve a locking function. In the present application, there are preferably two third grooves 13, distributed 180° on both sides of the inner wall of the upper shell 1 to effectively cooperate with the release of soft mist by the device.

[0047] A fourth groove 24 is provided on the portion where the main rotator 2 overlaps the upper housing 1. This groove extends to the top of the main rotator 2, facilitating injection molding of the main rotator 2 (a straight-through fourth groove 24 is relatively easy and cost-effective to mold). Furthermore, a first protrusion 25 is provided on the portion where the main rotator 2 overlaps the upper housing 1. This protrusion 25 extends across the outer portion of the fourth groove 24, creating a hollowed-out area for mounting the compressed locking member 4.

[0048] The locking member 4 is disposed in the fourth groove 24 and is compressed and limited by the first protrusion 25 assembled in the second groove 12. In the present application, the locking member 4 can be a U-shaped spring piece, which includes a straight section located in the fourth groove 24, a clamping section located inside the first protrusion 25, and a connecting section connecting the straight section and the clamping section. In the initial state, the first protrusion 25 presses the clamping section against the hollow area (or the static position), while the connecting section deforms and accumulates elastic force. When the counting function of the device fails, the push arm 34 can push the spring piece out from the inside of the first protrusion 25 to release the pressure on the clamping section. Under the action of the elasticity, the clamping section actively snaps into the third groove 13, thereby limiting the relative rotation of the upper shell 1 and the main rotating body 2, so that the device is locked.

[0049] 8 and 9 , an opening 41 is provided on the straight section of the locking member 4, and a bent portion 42 is provided at one end thereof close to the counting assembly 3, and a limit block 26 and a stop block 27 are provided in the fourth groove 24. The limit block 26 passes through the opening 41 and cooperates with the stop block 27 to hold the bent portion 42, thereby fixing the locking member 4 in the fourth groove 24, thereby improving the stability of the installation of the locking member 4.

[0050] It is worth mentioning that the curved portion 42 has a certain degree of deformation and guiding capabilities. When contacting the stopper 27, the curved portion 42 slightly deforms to enhance the interference with the stopper 27, thereby ensuring its own installation effect. When contacting the push arm 34, the curved portion 42 can guide the straight section of the locking member 4 to disengage the stopper 26, thereby smoothly moving out from the inside of the first protrusion 25.

[0051] As shown in Figure 9 , in some embodiments, the side of the stop block 26 facing the stop block 27 is provided with a stop surface 261 and a curved surface 262, respectively. The stop surface 261 and the curved surface 262 are sequentially connected from the inside out. The stop surface 261 is used to limit the axial movement of the locking member 4, while the curved surface 262 is used to guide the locking member 4 to jump over the stop block 26. In this application, the thickness of the stop surface 261 is less than or equal to the thickness of the straight section of the locking member 4, and the radius of the curved surface 262 is greater than the thickness of the stop surface 261. This allows the locking member 4 to smoothly jump over the stop block 26 with the help of the push arm 34.

[0052] Furthermore, the front end of the push arm 34 has a lifting surface 341 that mates with the curved portion 42. This surface is used to lift the curved portion 42 outward from the fourth groove 24, thereby separating it from the stop block 26. In the present application, the lifting surface 341 is an inclined surface integrally formed at the front end of the push arm 34, with an included angle of approximately 10°-30°, so that it can be inserted between the curved portion 42 and the fourth groove 24.

[0053] As shown in Figures 10 to 13, in other embodiments, a third groove 13 is also provided on the inner wall of the upper shell 1, which is also used to cooperate with the locking member 4 to achieve the locking function, and the number of the third grooves 13 is preferably two, distributed at 180° on both sides of the inner wall of the upper shell 1.

[0054] A fourth groove 24 is provided on the overlapping part of the main swivel 2 and the upper shell 1, and the groove extends straight to the top of the main swivel 2, and a clamping block 28 is provided on each side of the fourth groove 24. The clamping block 28 can be integrally formed in the middle position of the fourth groove 24, and is used to press the locking piece 4 to make it stationary in the groove.

[0055] The locking member 4 is still arranged in the fourth groove 24, but the locking member 4 is connected to the fourth groove 24 by rotation through the torsion spring 5 and is clamped and limited by the clamping block 28. In the present application, the locking member 4 can be a plate, the top of which can be connected to the fourth groove 24 through a rotating shaft structure, so that it can be rotated and fixed in the groove, and the plate is pressed and laid flat by the clamping blocks 28 on both sides, while the torsion spring 5 is in a compressed and force-storing state. As the number of counts increases, the push arm 34 gradually approaches the plate. When the counting function fails, the push arm 34 is inserted between the plate and the fourth groove 24, causing the plate to be free from the pressure of the clamping block 28 and to be clamped into the third groove 13 under the action of the torsion spring 5, thereby limiting the relative rotation of the upper shell 1 and the main rotating body 2, so that the device is locked.

[0056] It should be noted that because the locking member 4 is rotatably mounted within the groove, its position does not shift. It can only be deployed to achieve the locking function after the push arm 34 is in place. This prevents external factors from affecting the stability and reliability of the device's locking function. Furthermore, the torsion spring 5 has a stable elasticity. Compared to the U-shaped spring element in the prior art, even when in a compressed state for a long time, the torsion spring 5 can still provide a stable elastic force to the locking member 4, thereby ensuring full contact between the locking member 4 and the third groove 13, further improving the stability and reliability of the locking function.

[0057] As shown in FIG. 11 , in some embodiments, the bottom of the locking member 4 has a protruding snap-in portion, which forms a hook-shaped structure to expand the contact range with the third groove 13 and improve the locking effect.

[0058] As shown in FIG12 , in some embodiments, a notch is provided at one end of the fourth groove 24 away from the counter assembly 3, and the rotational connection of the locking member 4 is located within the notch, thereby preventing interference between the groove bottom and the locking member 4 and causing a flipping effect. It is understood that in other embodiments, instead of providing a notch, the groove bottom may be deepened or the rotational connection may be raised, thereby also preventing interference.

[0059] In some embodiments, a fifth groove 241 is provided on the fourth groove 24 , a sixth groove 43 is provided on the locking member 4 , and both ends of the torsion spring 5 are respectively arranged in the fifth groove 241 and the sixth groove 43 , thereby improving the stability of the position of the torsion spring 5 .

[0060] 11 and 13 , in some embodiments, seventh grooves 44 are provided on both sides of the locking member 4, enabling the latch 28 to better restrain the locking member 4. Furthermore, the seventh groove 44 has an inclined contact surface 441 that slopes downward from the middle of the locking member 4 toward the sides, providing a certain guiding effect and serving to guide the locking member 4 to separate from the latch 28. Accordingly, the radial cross-section of the latch 28 is arcuate, facilitating the insertion and removal of the locking member 4. The latch 28 abuts against the contact surface 441, thereby pressing the locking member 4 tightly into the fourth groove 24.

[0061] As shown in FIG. 1 , the soft mist device further includes a spray assembly 6 disposed inside the upper housing 1 and / or a pipe rack assembly 7 disposed inside the main rotating body 2 .

[0062] 1 and 14 to 18 , the present application further discloses a soft mist device, comprising a spray assembly 6 disposed inside an upper shell 1 , which is used to atomize the fluid in the device and release the soft mist outward.

[0063] The spray assembly 6 includes a matching piece 61, an elastic piece 62 and a nozzle 63. Among them, the matching piece 61 is configured to be adapted to the main body of the spray assembly 6 (i.e., the flow guide member 66), such as a circular structure, so as to facilitate installation and sealing. The elastic piece 62 is a truncated cone structure, the center of which has a customized hole adapted to the size of the nozzle 63, and the bottom has a customized flare adapted to the matching piece 61. The nozzle 63 has a multi-stage filtering structure (not shown). Under the action of high pressure, the fluid can be decomposed into tiny droplets through the multi-stage filtering structure and sprayed outward in the form of mist to form a soft mist. In the present application, the matching piece 61 and the elastic piece 62 are sealed by oblique interference and form a chamber 64 for accommodating the fluid. The cross-sectional shape of the chamber 64 is roughly an isosceles trapezoidal structure with a small top and a large bottom, so as to better store the high-pressure fluid and serve as a buffer mechanism before each start of the spray assembly 6 (to protect the nozzle 63 and reduce vibration). The nozzle 63 is fixed in the chamber 64 by the elastic member 62 and maintains a certain distance from the bottom of the chamber. The nozzle 63 can be triggered to spray once every half rotation of the upper shell 1 .

[0064] As shown in Figures 15 and 16, in some embodiments, the upper end surface of the matching member 61 is provided with a downwardly inclined sealing surface 611 from the outside to the inside, and the bottom of the elastic member 62 interferes with the sealing surface 611. Compared to the prior art (such as Chinese Patent No. CN 220917888 U), in which the bottom of the elastic member 62 contacts and seals the upward convex portion of the matching member 61, the present application eliminates the upward convex portion of the matching member 61 in the sealing structure, and uses the downwardly inclined sealing surface 611 to directly mate with the bottom of the elastic member 62 to seal the chamber 64. On the one hand, this prevents the nozzle 63 (the nozzle 63 is a consumable part) from colliding with the upward convex portion during assembly and damage, ensuring its normal atomization function. On the other hand, the design of the sealing surface 611 gradually sloping from the outside to the inside prevents the bottom of the elastic member 62 from turning outward, preventing the sealing performance of the fluid chamber 64 from being degraded or failing due to high pressure, thereby improving the reliability of the seal.

[0065] As shown in Figures 17 and 18 , in a more preferred embodiment, the upper end surface of the matching member 61 is further provided with a step 612, located outside the sealing surface 611, to limit the outward rotation of the bottom of the elastic member 62. Compared to the single inclined surface restriction mechanism shown in Figures 15 and 16 , the step 612 in this application further limits the outward rotation of the bottom of the elastic member 62, improving the fit between the bottom of the elastic member 62 and the sealing surface 611. Furthermore, the step 612 forms a new seal with the bottom of the elastic member 62, further enhancing the sealing of the flow chamber 64.

[0066] Specifically, the bottom of the elastic member 62 is provided with an arc-shaped third protrusion 621, which forms a surface seal and a line seal with the sealing surface 611 and the step 612, respectively. The surface seal is the primary seal, and the line seal is the secondary seal. The two work together to further improve the sealing performance between the elastic member 62 and the matching member 61.

[0067] Referring to Figures 15 to 18, in some embodiments, the angle between the sealing surface 611 and the horizontal plane is 5° to 45°, and / or the interference between the sealing surface 611 and the elastic member 62 is 0.05mm to 0.5mm. Within the above-mentioned angle range, the sealing surface 611 can better limit the outward turning of the bottom of the elastic member 62, while increasing the interference between the two to achieve a better sealing effect. In the present application, the angle between the sealing surface 611 and the horizontal plane is preferably 10° to 30°. For example, the angle can be 20°, 22°, 24°, 30°, etc. Similarly, within the above-mentioned interference range, the bottom of the elastic member 62 can be fully compacted with the sealing surface 611 to ensure the effectiveness and reliability of the seal. In the present application, the interference between the bottom of the elastic member 62 and the sealing surface 611 is preferably 0.1mm to 0.4mm. For example, the interference can be 0.2mm, 0.3mm, 0.4mm, etc.

[0068] In some embodiments, the injection assembly 6 further includes a compression member 65 for pressing the elastic member 62 against the matching member 61. The compression member 65 is preferably a hard metal sleeve to accommodate and secure the elastic member 62. In the present application, the compression member 65 can be directly welded to the matching member 61, for example, by circumferentially sealing the compression member 65 and the matching member 61 in a full weld (not shown). Alternatively, the compression member 65 can be provided with a locking member such as a threaded sleeve or a ferrule, which can be connected to the main body of the injection assembly 6, thereby removably fixing the compression member 65 to the matching member 61 (see Figures 15 and 17).

[0069] In addition, a concave corner 651 is provided at the bottom of the pressing piece 65, and a second protrusion 613 is provided at the upper edge of the matching piece 61. The pressing piece 65 and the matching piece 61 are assembled together through the concave corner 651 and the second protrusion 613, which plays a role in pre-positioning.

[0070] 1 and 14 , in some embodiments, the spray assembly 6 further includes a flow-guiding member 66 disposed within the upper housing 1. The flow-guiding member 66 is a tubular structure having a fluid channel 661 therein for guiding the fluid in the infusion tube 72 toward the chamber 64. Continuing with FIG22 , the top of the flow-guiding member 66 is used to mount the chamber 64, and an upper sealing ring is disposed between the matching piece 61 and the top of the flow-guiding member 66. The bottom of the flow-guiding member 66 is used to mount a sealing unit, which includes a lower sealing ring disposed at the bottom of the flow-guiding member 66. The cooperation of the upper and lower sealing rings ensures that the fluid channel 661 of the flow-guiding member 66 is absolutely sealed, preventing problems such as misalignment of the soft mist release dosage or pressure caused by fluid leakage.

[0071] As shown in FIG. 1 , the soft mist device further includes a counting assembly 3 arranged on the outer wall of the main rotating body 2 and / or a pipe rack assembly 7 arranged inside the main rotating body 2 .

[0072] Referring to Figures 1 and 19 to 22, a soft mist device includes a pipe rack assembly 7 arranged inside the main rotating body 2, and the assembly includes a fixing frame 71 and an infusion tube 72 passing through the fixing frame 71. The fixing frame 71 is used to be clamped and fixed with the medicine bottle 9 so that the medicine bottle 9 can be quickly loaded and unloaded. One end of the infusion tube 72 is inserted into the medicine bottle 9, and the other end is used to connect with the injection assembly 6. When the pipe rack assembly 7 moves toward the upper shell 1 (upward), the fluid in the guide member 66 will be squeezed into the chamber 64, and then atomized by the nozzle 63 and sprayed outward to form soft mist. This is called the injection state; when the pipe rack assembly 7 moves away from the upper shell 1 (downward), a vacuum environment is formed in the guide member 66, and the fluid in the medicine bottle 9 is sucked into the fluid channel 661 under the action of negative pressure. This is called the upper liquid state.

[0073] As shown in Figures 19 and 20, in some embodiments, a bottle cap 91 is provided at the mouth of the medicine bottle 9, and the bottle cap 91 has an extension portion 911 extending into the interior of the medicine bottle 9, thereby reserving sufficient depth to accommodate or cooperate with the infusion tube 72, thereby facilitating the assembly operation of the medicine bottle 9 and the tube rack assembly 7. In addition, a cavity 912 with a bottom seal is provided in the extension portion 911 to seal the medicine bottle 9 and prevent the fluid in the bottle from contacting with air, impurities, etc., resulting in contamination or failure. In the present application, the bottom middle portion of the cavity 912 is thick and the edge is thin, which makes it easy for the edge of the bottom of the cavity 912 to separate from the extension portion 911 when it is punctured, and the bottom of the cavity 912 is not easily deformed to affect the puncture effect.

[0074] The bottom of the infusion tube 72 is inclined and partially extends downward to form a spike structure 721. The spike structure 721 can improve the puncture effect and reduce the puncture operation force. When contacting the bottom of the cavity 912, the lowest point of the spike structure 721 will first puncture and open a gap, avoiding the problem of debris contamination and clogging of the infusion tube 72 caused by instantaneous complete destruction of the bottom of the cavity 912. In this application, the vertical cross-section of the spike structure 721 is triangular, and the surface where its hypotenuse is located is connected to the bottom of the infusion tube 72. The outer peripheral surface of the spike structure 721 is a curved surface 262, thereby forming an arc-shaped cutting line adapted to the bottom of the cavity 912, improving the puncture effect. In addition, the bottom inclination angle of the infusion tube 72 is 20° to 60°. If the inclination angle is less than 20°, the bottom guiding performance of the infusion tube 72 is poor, and the infusion tube 72 is likely to cause vertical shear force on the bottom of the cavity 912, resulting in complete damage to the bottom of the cavity 912. If the inclination angle is greater than 60°, the bottom of the infusion tube 72 is too sharp and long, and is likely to bend or break when punctured, affecting the use effect. Preferably, the bottom inclination angle of the infusion tube 72 can be 30°, 40°, 45°, 50°, etc.

[0075] In addition, a seal 10 is provided on the outer periphery of the infusion tube 72 to seal the cavity 912 after puncture and secure the infusion tube 72. In this application, the seal 10 is generally a frustum with a larger top and smaller bottom, so as to provide a surface seal with the cavity 912 and ensure the securement of the infusion tube 72. The seal 10 can be made of a rubber material, such as medical-grade fluororubber.

[0076] In the initial state, the infusion tube 72 is housed within the extension 911, and the seal 10 forms a gap with the cavity 912 to reduce resistance to the downward movement of the infusion tube 72. In the punctured state, the spike structure 721, along with a portion of the infusion tube 72, extends from the bottom of the cavity 912. The seal 10 also seals against the cavity 912, preventing fluid leakage or contamination. The seal 10 also pushes back against the infusion tube 72 to secure it in place, preventing it from shifting or loosening and ensuring reliable infusion.

[0077] Furthermore, the cavity 912 includes a straight-mouth section 9121 and a tapered section 9122 arranged in sequence from top to bottom, with a smooth transition between the two. The bottom and top of the seal 10 are respectively provided with a fifth protrusion 101 and a sixth protrusion 102. The vertical cross-sections of the fifth protrusion 101 and the sixth protrusion 102 are arc-shaped, and the size of the fifth protrusion 101 is smaller than the size of the sixth protrusion 102, so that the fifth protrusion 101 and the sixth protrusion 102 can both interfere with the tapered section 9122 to form two tighter seals, thereby improving the sealing effect between the infusion tube 72 and the cavity 912. In the initial state, the spike structure 721 is located in the tapered section 9122, and the fifth and sixth protrusions 101 and 102 are both in clearance with the straight-mouth section 9121. This allows the bottle cap 91 to accommodate the infusion tube 72 before being punctured, and the infusion tube 72 can move flexibly within the cavity 912. In the punctured state, the spike structure 721 is located outside the necked section 9122 , and the fifth and sixth protrusions 101 , 102 interfere and seal with the necked section 9122 , thereby further enhancing the sealing effect on the cavity 912 and the fixing effect on the infusion tube 72 .

[0078] As shown in FIG19 , in some embodiments, the bottom of the cavity 912 is horizontally disposed to facilitate molding. Alternatively, as shown in FIG21 , in other embodiments, the bottom of the cavity 912 can be tilted so that its highest point first contacts the spike structure 721 to achieve a better puncturing effect.

[0079] In some embodiments, the bottom thickness of the cavity 912 is not less than 0.04 mm. If the thickness is less than 0.04 mm, its structural strength is poor, and the bottom of the cavity 912 is easily completely destroyed and produces debris when punctured. In the present application, the bottom thickness of the cavity 912 is preferably between 0.06 mm and 0.15 mm. For example, the thickness can be 0.06 mm, 0.08 mm, 0.1 mm or 0.15 mm, etc., but try not to exceed 0.2 mm. Too thick a size will increase the difficulty of puncturing the infusion tube 72.

[0080] In other embodiments, as shown in FIG20 , a connecting belt 913 connecting the extension portion 911 is provided at the bottom of the cavity 912. When the bottom of the cavity 912 is completely destroyed, the connecting belt 913 can fix it to the extension portion 911, thereby preventing it from falling off.

[0081] As shown in Figure 22, in some embodiments, a pump unit 8 is provided in the infusion tube 72. The pump unit 8 is constructed such that: the leakage volume does not exceed 200 ml / min in the closed state, the ventilation volume is not less than 1000 ml / min in the open state, and it is suitable for actuating the fluid at a pressure of at least 20 bar, so as to ensure that there is sufficient fluid entering the fluid channel 661 in the upper liquid state, and in the spraying state, the circulation leakage is reduced as much as possible, thereby improving the dosage stability of the soft mist released by the nozzle 63 each time.

[0082] As shown in FIG23 , in some embodiments, the pump unit 8 includes a valve cavity 81 and a valve core 82. The valve cavity 81 can be integrally formed at the top of the infusion tube 72, and can move up and down along with the infusion tube 72 in the fluid channel 661 of the flow guide member 66, cooperating with the valve core 82 movably disposed in the valve cavity 81 to achieve flow-stopping and flow-through functions. In the present application, a columnar chamber 64 adapted to the valve core 82 is provided in the valve cavity 81, and a clearance is provided between the valve cavity 81 and the valve core 82, with the clearance being approximately 0.06 mm to 0.2 mm, preferably 0.1 mm to 0.15 mm, thereby forming a suitable fluid path between the infusion tube 72 and the fluid channel 661. In addition, the bottom of the valve cavity 81 is provided with a mating surface 811 that gradually slopes downward from the outside to the inside. Correspondingly, the bottom of the valve core 82 is provided with a rounded surface 821. Under natural circumstances, the rounded surface 821 can rely on its own weight to contact the mating surface 811 to form a line seal or surface seal, thereby preventing the fluid from flowing back or leaking during the liquid filling process, which may cause a decrease in the amount of soft mist released each time by the nozzle 63.

[0083] It should be noted that the mating surface 811 can be an inclined plane, and the angle between the inclined plane and the horizontal plane is 20° to 45°, preferably 30° to 40°, so as to better contact with the rounded surface 821 at the bottom of the valve core 82 to form a surface seal, ensuring a good sealing effect. Alternatively, the mating surface 811 can also be a convex curved surface 262, with a curvature radius of 0.1mm to 0.2mm, preferably 0.14mm to 0.16mm. This ensures that the mating surface 811 and the rounded surface 821 always maintain a linear seal, resulting in better sealing performance.

[0084] Furthermore, an interference structure is provided between the mating surface 811 and the rounded surface 821, and the interference structure includes a fourth protrusion 83 provided on the mating surface 811 and an eighth groove 84 provided on the rounded surface 821. When the pump unit 8 is in the closed state, the fourth protrusion 83 will be inserted into the eighth groove 84 and sealed with it. The interference amount between the two is about 0.02mm to 0.2mm, thereby forming a new seal on one side of the original seal. The double sealing design greatly improves the sealing and service life of the pump unit 8. After multiple tests, the pump unit 8 with the interference structure has a leakage of no more than 60ml / min in the closed state. Of course, in other embodiments, the interference structure may also include an eighth groove 84 provided on the mating surface 811 and a fourth protrusion 83 provided on the rounded surface 821 (not shown). The principles are similar and will not be repeated here.

[0085] Furthermore, at least two guide portions 85 are evenly spaced circumferentially between the outer periphery of the valve core 82 and the inner wall of the valve cavity 81 to provide a balanced guide, thereby preventing the valve core 82 from tilting or deflecting within the valve cavity 81. This prevents poor contact between the fillet surface 821 and the first sealing surface 611 caused by the displacement of the valve core 82 during the opening and closing of the pump unit 8, thereby ensuring the sealing effect of the pump unit 8. Preferably, the number of guide portions 85 can be 2 to 6, and more preferably 3 or 4, to maintain balanced guidance while minimizing the impact on the ventilation volume of the pump unit 8.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the application without departing from the principles and purpose of the present application. All of these changes should fall within the scope of protection of the claims of the present application.

Claims

1. A soft mist device, comprising an upper shell (1) and a main rotating body (2), wherein the upper shell (1) is rotatably connected to the main rotating body (2), wherein: A counting assembly (3) is provided on the outer wall of the main rotating body (2), and the counting assembly (3) comprises a screw rod (31) connected to the main rotating body (2) and a sliding block (32) moving along the screw rod (31); A first groove (11) is provided on the inner wall of the upper shell (1), and the first groove (11) is configured to drive the screw rod (31) to rotate, thereby driving the slider (32) to move to realize a counting function.

2. The soft mist device according to claim 1, wherein: An actuating unit (33) is provided at one end of the screw rod (31) close to the main rotating body (2), and the first groove (11) is in contact with a portion of the actuating unit (33).

3. The soft mist device according to claim 2, wherein: The touch unit (33) comprises a first touch portion (331) and a second touch portion (332) which are perpendicularly intersected; The first actuating portion (331) engages with the first groove (11), and the second actuating portion (332) abuts against the inner wall of the upper housing (1) but does not contact the first groove (11).

4. The soft mist device according to claim 1, wherein: The number of the first grooves (11) is one or 2N, wherein N is a positive integer.

5. The soft mist device according to claim 1, wherein: The outer wall of the main rotating body (2) is provided with a first mounting portion (21) and a second mounting portion (22) in sequence along the axial direction of the device; The screw rod (31) is rotatably connected to the first mounting portion (21) and the second mounting portion (22) respectively, and a limiting portion (311) close to the second mounting portion (22) is provided on the screw rod (31) for limiting its own axial movement.

6. The soft mist device according to claim 1, wherein: One side of the counting component (3) is provided with a scale line (23) for the sliding block (32) to move and count.

7. The soft mist device according to claim 1, wherein: The counting assembly (3) further comprises a push arm (34) integrally formed on one side of the sliding block (32); When the counting function of the device fails, part of the push arm (34) enters between the upper housing (1) and the main rotating body (2), thereby limiting the relative rotation of the two.

8. The soft mist device according to claim 7, wherein: A second groove (12) is also provided on the inner wall of the upper shell (1), and a third groove (13) is provided on the second groove (12); A fourth groove (24) and a first protrusion (25) are provided on the portion where the main rotating body (2) and the upper shell (1) overlap along the axial projection, a locking piece (4) is provided in the fourth groove (24), and the locking piece (4) is pressed and limited by the first protrusion (25) assembled in the second groove (12); When the counting function of the device fails, the push arm (34) can push the locking member (4) out from the inner side of the first protrusion (25), so that the locking member (4) is partially actively inserted into the third groove (13), thereby limiting the rotation of the main rotating body (2).

9. The soft mist device according to claim 1, wherein: An opening (41) is provided on the straight section of the locking member (4), and a bent portion (42) is provided at one end thereof close to the counting assembly (3); A limit block (26) and a stop block (27) are provided in the fourth groove (24); the limit block (26) passes through the opening (41) and cooperates with the stop block (27) to hold the bent portion (42), thereby fixing the locking member (4) in the fourth groove (24).

10. The soft mist device according to claim 9, wherein: A stop surface (261) and a curved surface (262) are respectively provided on one side of the limit block (26) facing the stop block (27), and the stop surface (261) and the curved surface (262) are sequentially connected from the inside to the outside; The thickness dimension of the stop surface (261) is less than or equal to the thickness dimension of the straight section of the locking member (3), and the radius dimension of the curved surface (262) is greater than the thickness dimension of the stop surface (261).

11. The soft mist device according to claim 9, wherein: The front end of the push arm (34) has a lifting surface (341) that fits with the curved portion (42).

12. The soft mist device according to claim 7, wherein: A third groove (13) is also provided on the inner wall of the upper shell (1); A fourth groove (24) is provided on the portion where the main rotating body (2) and the upper shell (1) overlap, a locking member (4) is provided in the fourth groove (24), the locking member (4) is rotatably connected to the fourth groove (24) via a torsion spring (5), and is pressed and limited by clamping blocks (28) provided on both sides of the fourth groove (24); When the counting function of the device fails, the push arm (34) can cause the locking member (4) to separate from the clamping block (28) and, under the action of the torsion spring (5), to be clamped into the third groove (13), thereby limiting the rotation of the main rotating body (2).

13. The soft mist device according to claim 12, wherein: The fourth groove (24) is provided with a fifth groove (241), the locking member (4) is provided with a sixth groove (43), and the two ends of the torsion spring (5) are respectively arranged in the fifth groove (241) and the sixth groove (43).

14. The soft mist device according to claim 12, wherein: Seventh grooves (44) are provided on both sides of the locking member (4), and the seventh groove (44) has an inclined contact surface (441); The radial cross section of the clamping block (28) is arc-shaped, and the clamping block (28) and the contact surface (441) are Butt fit.

15. The soft mist device according to claim 1, wherein: It also includes a spray assembly (6) arranged inside the upper shell (1) and / or a pipe rack assembly (7) arranged inside the main rotating body (2).

16. A soft mist device, wherein: The invention comprises a spray assembly (6) arranged inside an upper shell (1), wherein the spray assembly (6) comprises a matching piece (61), an elastic piece (62) and a nozzle (63), wherein the matching piece (61) and the elastic piece (62) are sealed by inclined interference to form a chamber (64) for containing a fluid, and the nozzle (63) is fixed in the chamber (64) by the elastic piece (62); wherein the nozzle (63) can be triggered to spray once every half turn of the upper shell (1).

17. The soft mist device according to claim 16, wherein: The upper end surface of the matching piece (61) is provided with a downwardly inclined sealing surface (611) from the outside to the inside, and the bottom of the elastic piece (62) is in interference fit with the sealing surface (611).

18. The soft mist device according to claim 17, wherein: The upper end surface of the matching piece (61) is also provided with a step (612), and the step (612) is located outside the sealing surface (611) and is used to limit the outward turning of the bottom of the elastic piece (62).

19. The soft mist device according to claim 16, wherein: The bottom of the elastic member (62) is provided with an arc-shaped third protrusion (621), and the third protrusion (621) forms a surface seal and a line seal with the sealing surface (611) and the step (612) respectively.

20. The soft mist device according to claim 17 or 18, wherein: The angle between the sealing surface (611) and the horizontal plane is 5° to 45°, and / or the interference between the sealing surface (611) and the elastic member (62) is 0.05 mm to 0.5 mm.

21. The soft mist device according to claim 16, wherein: The injection assembly (6) further comprises a pressing member (65) for pressing the elastic member (62) onto the matching member (61); The bottom of the pressing piece (65) is provided with a concave angle (651), the upper edge of the matching piece (61) is provided with a second protrusion (613), and the pressing piece (65) and the matching piece (61) are assembled together by means of the concave angle (651) and the second protrusion (613).

22. The soft mist device according to claim 16, wherein: The injection assembly (6) further comprises a flow guide component (66) arranged in the upper shell (1); the top of the flow guide component (66) is used to install the chamber (64), and the bottom is used to install the sealing unit (8).

23. The soft mist device according to claim 16, wherein: It also includes a counting assembly (3) arranged on the outer wall of the main rotating body (2) and / or a pipe rack assembly (7) arranged inside the main rotating body (2).

24. A soft mist device, wherein: It comprises a pipe rack assembly (7) arranged inside the main rotating body (2), wherein the pipe rack assembly (7) comprises a fixing frame (71) and a liquid infusion tube (72) passing through the fixing frame (71); The fixing frame (71) is used for clamping and fixing with the medicine bottle (9); one end of the infusion tube (72) is inserted into the medicine bottle (9), and the other end is used for connecting with the injection assembly (6).

25. The soft mist device according to claim 24, wherein: A bottle cap (91) is provided at the mouth of the medicine bottle (9), the bottle cap (91) having an extension portion (911) extending into the interior of the medicine bottle (9), and a cavity (912) with a sealed bottom is provided in the extension portion (911); The bottom of the infusion tube (72) is inclined and partially extends downward to form a spike structure (721), and a sealing member (10) is provided on the outer periphery of the infusion tube (72); In the initial state, the infusion tube (72) is accommodated in the extension portion (911), and the sealing member (10) is in clearance fit with the cavity (912); in the puncturing state, the spike structure (721) and part of the infusion tube (72) extend out from the bottom of the cavity (912), and the sealing member (10) is in sealing fit with the cavity (912).

26. The soft mist device according to claim 25, wherein: The cavity (912) comprises a straight opening section (9121) and a narrowed opening section (9122) arranged in sequence from top to bottom; The bottom and top of the sealing element (10) are respectively provided with a fifth protrusion (101) and a sixth protrusion (102), and the size of the fifth protrusion (101) is smaller than the size of the sixth protrusion (102); In the initial state, the spike structure (721) is located inside the necking section (9122), and the first and sixth protrusions (101, 102) are both loosely matched with the straight section (9121); in the punctured state, the spike structure (721) is located outside the necking section (9122), and the first and sixth protrusions (101, 102) are both interference-sealed with the necking section (9122).

27. The soft mist device according to claim 25, wherein: The bottom of the cavity (912) is arranged horizontally, or the bottom of the cavity (912) is arranged obliquely and its highest point can first contact the spike structure (721).

28. The soft mist device according to claim 25, wherein: The bottom thickness of the cavity (912) is not less than 0.04 mm, or the bottom of the cavity (912) is provided with a connecting belt (913) connected to the extension part (911).

29. The soft mist device according to claim 24, wherein: A pump unit (8) is arranged inside the infusion tube (72), and the pump unit (8) is constructed such that: in a closed state, the leakage amount does not exceed 200 ml / min, in an open state, the ventilation amount is not less than 1000 ml / min, and it is suitable for actuating the fluid at a pressure of at least 20 bar.

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