A liquid injection device

Abstract

The application discloses a liquid injection device. The liquid injection device comprises a liquid storage device, a liquid injector, a sound generator, and a liquid injection assembly. The liquid injection assembly is used for accepting pressing to pump out liquid in the liquid storage device. The sound generator is used for emitting a prompt sound when the liquid injection assembly moves to a preset position. In this way, the liquid injection device can emit a prompt sound when the liquid injection operation is completed, so that the user can accurately grasp the completion node of the liquid injection operation, and the user can be prevented from repeatedly injecting the same aerosol base.

Description

Technical Field

[0001] This application relates to the field of liquid injection equipment technology, and in particular to a liquid injection device. Background Technology

[0002] Traditional aerosol media consists of a filter section and a combustion section. Users can inhale the aerosol produced by the combustion section through the filter. Some aerosol media have popping beads inside the filter section. Before inhaling the aerosol, the popping beads are squeezed to expose the liquid inside the popping beads to the filter section. This allows the aerosol to pass through the filter section during use, thus bringing out the flavor of the popping bead liquid.

[0003] However, most aerosol substrates on the market do not contain flavoring beads. Therefore, flavoring liquids can be injected into the filter section of the aerosol substrate through a liquid injection device to improve the user experience.

[0004] However, when users inject flavor liquid into the aerosol matrix using the injection device, the feedback during operation is often weak, making it difficult to accurately determine whether the injection has been completed. This can easily lead to users repeatedly injecting the same aerosol matrix. Utility Model Content

[0005] This application provides a liquid injection device to solve the problem of repeated liquid injection caused by the weak operational feedback of current liquid injection devices.

[0006] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a liquid injection device. The liquid injection device includes: a liquid reservoir; and a liquid injector, including a housing assembly and a liquid injection component and a sounder disposed in the housing assembly. The liquid injection component is used to pump liquid out of the liquid reservoir by receiving pressure, and the sounder is used to emit a prompt sound when the liquid injection component moves to a preset position.

[0007] In some embodiments, the sound-emitting device includes a baffle and a spring; the housing assembly includes a bracket and a housing connected to the bracket; the baffle is mounted on the housing; and the spring is connected to the bracket. The liquid injection assembly includes a pressing member movably disposed on the bracket. The pressing member is used to receive pressure to pump liquid out of the reservoir; when the pressing member is pressed down, it actuates the spring, causing the spring to strike the baffle and emit a sound.

[0008] In some embodiments, the pressing member is further provided with a flange, which is used to actuate the spring piece as the pressing member moves downward, so that the spring piece strikes the baffle and emits a prompting sound.

[0009] In some embodiments, the spring includes an integrally structured insertion section, a deformable section, and a contact section. The insertion end is inserted into the bracket, the deformable section is bent and connected to the insertion end and extends towards the pressing member, and the deformable section is connected between the insertion section and the contact section. The flange is used to actuate the deformable segment to cause it to deform, and the contact segment is used to open relative to the baffle as the deformable segment deforms, and to strike the baffle when the deformable segment returns to its original position.

[0010] In some embodiments, the deformable segment includes an arc-shaped top, which is used to deform the deformable segment by being pressed by the flange, and when the flange moves down to a preset position, the arc-shaped top passes over the flange and resets, so that the contact foot segment strikes the baffle.

[0011] In some embodiments, the housing assembly includes an end cap rotatably connected to the housing, the end cap having a first magnetic attraction element, the pressing element having a second magnetic attraction element, and the end cap being used to fasten to the housing. When the end cap is fastened to the outer shell, the first magnetic component and the second magnetic component are magnetically connected.

[0012] In some embodiments, the housing assembly further includes a reset member, the base plate of the bracket is provided with a mounting cylinder, the pressing member is movably inserted through the mounting cylinder and cooperates with the stop of the mounting cylinder, and the reset member is sleeved on the mounting cylinder and the pressing member and elastically compressed between the base plate of the bracket and the stop on the pressing member.

[0013] In some embodiments, the inner wall of the mounting cylinder is provided with a plurality of spaced-apart first stop blocks, and the outer wall of the pressing member is provided with a plurality of second stop blocks. Each second stop block passes through the circumferential gap between each of the first stop blocks and forms a stop engagement with the corresponding first stop block under the elastic support force of the reset member.

[0014] In some embodiments, the base plate of the bracket is provided with a fixed platform, and the injection assembly further includes an injection needle communicating with the pressing member, the injection needle being mounted on the fixed platform; The outer shell is provided with a receiving cavity and a pressing port arranged side by side. The pressing element is also disposed in the pressing port. The fixing platform is located at the bottom of the receiving cavity. The injection needle is disposed in the receiving cavity. The receiving cavity is used to contain the aerosol matrix.

[0015] In some embodiments, the liquid reservoir includes a liquid storage element and at least two pumping mechanisms. The liquid storage element has at least two liquid storage chambers that are isolated from each other. Each pumping mechanism is connected to a corresponding liquid storage chamber and is driven to pump out the liquid in the liquid storage chamber. The bracket is rotatably connected to the liquid storage component, and the pressing member abuts against one of the pumping mechanisms and is connected to the pumping mechanism. The pressing member is used to drive the pumping mechanism to work under pressure so as to pump out the liquid in the liquid storage chamber. Specifically, by driving the housing assembly to rotate relative to the liquid storage component, the pressing component is switched to be connected to different pumping mechanisms.

[0016] In some embodiments, the reservoir further includes an elastic member disposed within the reservoir, a rotating column is provided at one end of the support facing the reservoir, the rotating column is rotatably connected to the reservoir, one end of the elastic member elastically abuts against the end of the rotating column opposite to the support, and the other end of the elastic member elastically abuts against the inner wall of the reservoir. The elastic element allows the rotating column to undergo axial displacement, enabling the housing assembly to rotate relative to the liquid reservoir, and provides elastic force to maintain the connection between the pressing element and one of the pumping mechanisms when the pressing element switches to communication with the pumping mechanism.

[0017] In some embodiments, the liquid reservoir is provided with at least one first positioning portion on the end face of the injector, and the bracket is provided with at least one second positioning portion that cooperates with the first positioning portion on the end face of the liquid reservoir. When the pressing member is switched to be connected to different pumping mechanisms, the corresponding first positioning part and the second positioning part cooperate to limit the rotational position of the housing assembly relative to the liquid storage component.

[0018] In some embodiments, the liquid storage component includes a top cover with a first through hole, the rotating column is rotatably disposed in the first through hole, the elastic member is accommodated in the first through hole and the other end of the elastic member abuts against the top cover.

[0019] In some embodiments, each of the pumping components is fitted with a sealing sleeve at its end facing the injector, the sealing sleeve being used to form an elastic abutment with the pressing member.

[0020] The beneficial effects of this application are as follows: Unlike the prior art, this application discloses a liquid injection device. By setting a sounder in the housing assembly, the sound of the sounder is linked to the pressing and liquid injection action of the liquid injection assembly. Thus, when the liquid injection assembly moves down to the preset position, a prompt sound can be emitted to indicate to the user that the pressing operation has been completed. This prompt sound helps the user accurately grasp the completion point of the liquid injection operation, improves the convenience of operation, and prevents the user from repeatedly injecting the same aerosol matrix. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of an embodiment of the liquid injection device provided in this application; Figure 2 yes Figure 1 A schematic diagram of the exploded structure of the injection device shown. Figure 3 yes Figure 2 A cross-sectional view of the injector in the injection device shown. Figure 4 yes Figure 2 A cross-sectional view of the reservoir in the injection device shown. Figure 5 yes Figure 2 An exploded view of the injector in the injection device shown. Figure 6 yes Figure 3 A cross-sectional view of the spring in the injector shown. Figure 7 yes Figure 3 A schematic diagram of the injector when the first sleeve is in the first position; Figure 8 yes Figure 3 The diagram shows the structure of the injector when both the first sleeve and the second sleeve are in the first position. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] This application provides a liquid injection device 100, see reference. Figures 1 to 4 , Figure 1 This is a schematic diagram of an embodiment of the liquid injection device provided in this application. Figure 2 yes Figure 1 The diagram shows the exploded structure of the injection device. Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the injector in the injection device. Figure 4 yes Figure 2 A cross-sectional view of the reservoir in the injection device shown.

[0026] The liquid injection device 100 includes a reservoir 10 and an injector 20. The injector 20 is rotatably connected to the reservoir 10. The injector 20 can rotate relative to the reservoir 10 to communicate with different reservoir chambers 101 in the reservoir 10, and can inject the liquid in the different reservoir chambers 101 into the aerosol matrix.

[0027] Different liquid storage chambers 101 contain flavored liquids of different flavors. Thus, by rotating and switching, the injector 20 in the injection device 100 can inject the flavored liquids in different liquid storage chambers 101 into the aerosol matrix, so as to select and adjust the flavor to one's liking into the aerosol matrix.

[0028] The flavor liquid can be a variety of spice or flavoring liquids, with different flavors such as fruit, herbs, coffee, or others, aiming to provide users with a rich sensory experience. The aerosol base can be tobacco leaves or cigarettes, which, when heated, form an aerosol for users to inhale. The flavor liquid can be injected into the filter tip of the aerosol base, so that when the user inhales, the aerosol produced by the aerosol base passes through the filter tip and is layered with the flavor liquid, creating a more complex and layered taste.

[0029] In this embodiment, the liquid reservoir 10 includes a liquid storage element 12 and at least two pumping mechanisms 14. The liquid storage element 12 has at least two isolated liquid storage chambers 101. Each liquid storage chamber 101 can store flavored liquids of different flavors. Each pumping mechanism 14 is connected to the corresponding liquid storage chamber 101 and is driven to pump out the liquid in the liquid storage chamber 101. The liquid injector 20 includes a housing assembly 22 and an injection assembly 24 disposed in the housing assembly 22. The housing assembly 22 is rotatably connected to the liquid storage element 12, and the injection assembly 24 is connected to one of the pumping mechanisms 14 to inject the pumped liquid into the aerosol matrix. When the housing assembly 22 rotates relative to the liquid storage element 12, the injection assembly 24 is switched to be connected to different pumping mechanisms 14.

[0030] The liquid storage unit 12 is provided with at least two liquid storage chambers 101 that are isolated from each other. The number of pumping mechanisms 14 is the same as the number of liquid storage chambers 101. The different liquid storage chambers 101 are isolated from each other to prevent the flavor liquids inside from mixing.

[0031] For example, the liquid storage component 12 has two parallel liquid storage chambers 101, each of which is connected to a corresponding pumping mechanism 14. Alternatively, the liquid storage component 12 has three, four, or five liquid storage chambers 101 arranged in a circular pattern, with the multiple liquid storage chambers 101 evenly distributed around the central axis of the liquid storage component 12, and each of which is connected to a corresponding pumping mechanism 14.

[0032] The pumping mechanism 14 can be a commercially available micropump or micropiston mechanism, or a liquid extraction mechanism described in the prior art, as long as it can pump out the flavor liquid from the storage chamber 101.

[0033] In this embodiment, as Figure 4As shown, the pump mechanism 14 includes an external pump tube 141, a piston 142, a compression spring 143, and a check valve 144. The external pump tube 141 can be embedded in the corresponding liquid storage chamber 101 through a sealing element and close the liquid storage chamber 101. The piston 142 is movably disposed in the external pump tube 141. The compression spring 143 is disposed in the external pump tube 141 and is elastically compressed between the bottom of the piston 142 and the bottom of the external pump tube 141. The bottom of the external pump tube 141 is provided with an inlet that communicates with the liquid storage chamber 101. The check valve 33 is installed at the inlet. The piston 142 is provided with an outlet channel. The injection assembly 24 is used to communicate with the outlet channel in the piston 142. The piston 142 can reciprocate in the external pump tube 141 and automatically return to its original position through the elastic action of the compression spring 143, thereby completing the extraction and output of the flavored liquid.

[0034] Specifically, the piston 142 is driven by the injection assembly 24 to move downward along the pump outer tube 141, thereby pushing the flavor fluid in the pump outer tube 141 to the injection assembly 24 through the liquid outlet channel. During this process, the check valve 33 keeps the inlet blocked. When the piston 32 is driven upward by the elastic force of the compression spring 143, a negative pressure is formed in the pump outer tube 141, and the check valve 33 opens the inlet to draw the flavor fluid in the storage chamber 101 from the inlet into the pump outer tube 141.

[0035] Furthermore, the outer tube 141 of the pump can also be provided with a vent hole that connects to the liquid storage chamber 101. The piston 142 is also fitted with a sealing seat 145. The sealing seat 145 can move up and down with the piston 142 inside the outer tube 141 and, under the action of the sealing seat 145, realize the opening and closing control of the vent hole to regulate the air pressure inside the liquid storage chamber 101 and ensure that the flavor liquid in the liquid storage chamber 101 can be stably delivered.

[0036] The reservoir 10 has multiple sets of reservoir chambers 101 and pumping mechanisms 14. Each reservoir chamber 101 and the corresponding pumping mechanism 14 work independently without interfering with each other, and form multiple flavor liquid output channels that can be connected to the injection assembly 24.

[0037] The injector 20 can selectively connect to different pumping mechanisms 14 by rotating and switching the position of the injection assembly 24, thereby achieving selective output of flavor liquids from different storage chambers 101 and injection into the aerosol matrix.

[0038] The housing assembly 22 is rotatably connected to the liquid storage component 12. The rotation of the housing assembly 22 drives the liquid injection assembly 24 to align and connect with different pumping mechanisms 14, realizing the on-demand switching output of multi-flavor liquids. The rotation operation of the liquid injector 20 is simple and convenient, and flavor switching can be completed without disassembling or replacing parts, which greatly improves the ease of use of the liquid injection device 100 that can selectively output multiple flavors.

[0039] It should be noted that the injector 20 cannot rotate independently relative to the reservoir 10; the rotation of the injector 20 must be completed manually by the user. After the injection component 24 is accurately aligned with the target pumping mechanism 14, the injection component 24 and the pumping mechanism 14 can be quickly locked together by a magnetic attraction structure or an alignment structure. The infusion port of the injection component 24 and the infusion port of the pumping mechanism 14 are sealed together to ensure the sealing and stability of the injection component 24 when connected to the corresponding pumping mechanism 14, and to prevent leakage of the flavor liquid during the delivery process.

[0040] Optionally, the end face of the reservoir 10 facing the housing assembly 22 is uniformly provided with a plurality of first magnets, and the housing assembly 22 is provided with second magnets corresponding to the positions of each first magnet. The alignment and locking between the injection assembly 24 and the pumping mechanism 14 are achieved by magnetic attraction. The user only needs to rotate the injector 20 to align the injection assembly 24 with the target pumping mechanism 14, and each first magnet and each second magnet will automatically attract and fix them, thereby completing the preparation work for flavor switching and preventing the injector 20 from rotating relative to the reservoir 10.

[0041] In this embodiment, as Figures 2 to 4 As shown, the reservoir 10 also includes an elastic element 110 disposed within the reservoir 12. A rotating column 210 is provided at one end of the housing assembly 22 facing the reservoir 12. The rotating column 210 is rotatably connected to the reservoir 12. One end of the elastic element 110 elastically abuts against the end of the rotating column 210 away from the housing assembly 22, and the other end of the elastic element 110 elastically abuts against the inner wall of the reservoir 12. The elastic element 110 allows the rotating column 210 to undergo axial displacement, so that the housing assembly 22 can rotate relative to the reservoir 12. When the injection assembly 24 switches to be connected with one of the pumping mechanisms 14, it provides elastic force to maintain the connection between the injection assembly 24 and the pumping mechanism 14 and prevents the injector 20 from rotating relative to the reservoir 10.

[0042] The elastic element 110 can be a compression spring or elastic sleeve, and its configuration can be adjusted according to actual needs to meet the axial displacement space and reset capability required during the rotation of the housing assembly 22. The design of the elastic element 110 not only improves the stability of the connection between the injection assembly 24 and the pumping mechanism 14, but also applies a uniform restoring force to the housing assembly 22 during switching, resulting in a better feel for the injector 20 during rotational operation and further enhancing the user experience.

[0043] When the injector 20 is not driven by external force, the elastic force provided by the elastic element 110 keeps the injector 20 abutting against the end face of the reservoir 10, maintaining the sealed connection between the injector assembly 24 and the corresponding pumping mechanism 14. When it is necessary to switch the injector assembly 24 to connect with different pumping mechanisms 14, the user only needs to apply a certain external force to rotate the injector 20, causing the housing assembly 22 to overcome the elastic force of the elastic element 110 and generate axial displacement, thereby disengaging from the currently aligned pumping mechanism 14. At this time, the injector 20 can be rotated freely until the injector assembly 24 is aligned with the target pumping mechanism 14. After the external force is removed, the restoring force of the elastic element 110 will push the housing assembly 22 against the reservoir 12, making the injector assembly 24 tightly connected with the target pumping mechanism 14, completing the flavor switching operation. The whole process is simple to operate and quick to switch, effectively improving the convenience and stability of the user during use.

[0044] See Figure 2 and Figure 3 The liquid storage component 12 has at least one first positioning part 112 on its end face facing the injector 20, and the housing assembly 22 has at least one second positioning part 212 on its end face facing the liquid storage component 12, which cooperates with the first positioning part 112. When the injection assembly 24 switches to communicate with different pumping mechanisms 14, the corresponding first positioning part 112 and second positioning part 212 cooperate to limit the rotational position of the housing assembly 22 relative to the liquid storage component 12.

[0045] For example, the liquid storage component 12 is provided with a first positioning part 112, and the housing assembly 22 is provided with two, three or four or more second positioning parts 212. The number of second positioning parts 212 is the same as the number of liquid storage chambers 101. When the first positioning part 112 is positioned and cooperated with one of the second positioning parts 212, the liquid injection assembly 24 is connected to the corresponding pumping mechanism 14.

[0046] In this embodiment, the end face of the liquid storage component 12 facing the liquid injector 20 is provided with a first positioning part 112 corresponding to each of the pumping mechanisms 14, and the end face of the housing assembly 22 facing the liquid storage component 12 is provided with a second positioning part 212 that cooperates with each of the first positioning parts 112; wherein, when the liquid injection assembly 24 switches to communicate with different pumping mechanisms 14, the corresponding first positioning part 112 and the second positioning part 212 cooperate to limit the rotation position of the housing assembly 22 relative to the liquid storage component 12.

[0047] Through the coordinated design of the first positioning part 112 and the second positioning part 212, not only is the precise positioning between the injector 20 and the different pumping mechanisms 14 achieved, but the unexpected rotation of the injector 20 during use is also effectively prevented, thereby ensuring the stability of the docking between the injector assembly 24 and the pumping mechanism 14.

[0048] The number of first positioning parts 112 is the same as the number of pumping mechanisms 14, and they are set one-to-one with the positions of the pumping mechanisms 14. The number of second positioning parts 212 is at least one, for example, the number of second positioning parts 212 is one. When the housing assembly 22 rotates, the second positioning part 212 can sequentially position and cooperate with each of the first positioning parts 112, thereby realizing the accurate positioning of the injector 20 between multiple preset positions, so that the injector assembly 24 can be accurately aligned and connected to the corresponding pumping mechanism 14. For example, the number of second positioning parts 212 is the same as the number of first positioning parts 112. When the injector assembly 24 switches to connect with different pumping mechanisms 14, each second positioning part 212 cooperates with each of the first positioning parts 112 to achieve positioning. Through the multi-point positioning structure design, the switching of the injector 20 between different pumping mechanisms 14 is more accurate and reliable.

[0049] The first positioning part 112 and the second positioning part 212 can adopt a structure in which a protrusion and a groove cooperate. For example, the first positioning part 112 is set as a groove, and the second positioning part 212 is set as a protrusion that can be embedded in the groove; or conversely, the first positioning part 112 is set as a protrusion, and the second positioning part 212 is set as a groove for accommodating the protrusion. Through this concave-convex cooperation structure, the positioning accuracy and operational feedback of the injection assembly 24 during the switching process are further improved, allowing the user to obtain a clear sense of gear position when rotating to switch, enhancing the controllability and convenience of operation. At the same time, this structural design can also effectively prevent unexpected rotation caused by accidental touch or vibration, thereby ensuring that the pump mechanism 14 and the injection assembly 24 always maintain a stable and reliable sealed connection.

[0050] Optionally, the first positioning part 112 and the second positioning part 212 can also adopt a magnetic adsorption structure. For example, a magnet or magnetic block can be provided on the end face of the liquid storage component 12, and a metal part or magnetic component that can be adsorbed can be provided at a corresponding position on the housing assembly 22, thereby achieving magnetic positioning. Through magnetic cooperation, not only can the stability of positioning and the convenience of operation be improved, but also a smooth and clear gear feel can be provided during rotation switching, making the user operation smoother and more natural.

[0051] In this embodiment, in conjunction with reference to Figures 2 to 4 The liquid storage component 12 includes a top cover 120, which has a first through hole 121 and a second through hole 120 corresponding to each pump mechanism 14. The rotating column 210 is rotatably disposed in the first through hole 121, and the elastic member 110 is accommodated in the first through hole 121, with the other end of the elastic member 110 abutting against the top cover 120.

[0052] A baffle 211 is connected to the end of the rotating column 210 away from the housing assembly 22. The baffle 211 is connected to the rotating column 210 by screws 213. An elastic element 110 is sleeved on the rotating column 210 and elastically abuts against the baffle 211 and the top wall of the top cover 120, so that the rotating column 210 remains in contact with the first through hole 121 when it is rotating and engaged with the first through hole 121.

[0053] Optionally, the end face of the pumping mechanism 14 is lower than the end face of the top cover 120 facing the injector 20, and a first positioning part 112 is formed by the second through hole 122, and a second positioning part 212 is formed by the end of the injection assembly 24 protruding from the housing assembly 22.

[0054] In this embodiment, the first positioning part 112 is a groove provided on the end face of the top cover 120, and the second positioning part 212 is a protrusion provided on the end face of the housing assembly 22. The groove and the protrusion are positioned and engaged.

[0055] The liquid storage component 12 also includes a liquid storage shell 124, in which at least two liquid storage cavities 101 are formed, which are isolated from each other. The pumping mechanism 14 is sealed to the port of the liquid storage cavity 101 by a sealing element. The top cover 120 is sealed to the port of the liquid storage shell 124 and connected to each liquid storage component 124.

[0056] Furthermore, such as Figure 4 As shown, each pumping assembly 14 is fitted with a sealing sleeve 114 at the end facing the injector 20. The sealing sleeve 114 is used to form an elastic contact with the injection assembly 24, thereby sealing the connection between the injection assembly 24 and the pumping mechanism 14, ensuring that good sealing performance can be maintained when switching to different pumping mechanisms 14, and preventing the flavor liquid from leaking during injection.

[0057] Under the elastic force of the elastic element 110, the liquid injection assembly 24 can be firmly abutted against the sealing sleeve 114 at the end of the pump mechanism 14, thereby forming a tight and reliable sealing connection and effectively preventing liquid leakage.

[0058] Continue reading Figure 2 , Figure 3 and Figure 5 , Figure 5 yes Figure 2 The diagram shows an exploded view of the injector in the injection device. In this embodiment, the injection assembly 24 includes a pressing member 240 and an injection needle 244 communicating with the pressing member 240. The pressing member 240 is movably disposed on the housing assembly 22. The pressing member 240 abuts against one of the pumping mechanisms 14 and communicates with the pumping mechanism 14. The pressing member 240 is used to drive the pumping mechanism 14 by being pressed, so as to deliver the pumped flavor liquid to the injection needle 244. The injection needle 244 is used to inject liquid into the aerosol matrix.

[0059] By applying pressure to the pressing element 240, the user can drive the pumping mechanism 14 to pump out the flavor liquid, which is then injected into the aerosol matrix via the injection needle 244, thus instantly adding flavor to the aerosol matrix. This structural design allows the user to complete the injection operation with just one hand, making it convenient and efficient.

[0060] The injection needle 244 has a sharp point at its end for piercing into the aerosol matrix.

[0061] Furthermore, a reset member 224 is provided between the pressing member 240 and the housing assembly 22, which is used to automatically reset the pressing member 240 after the pressing action is completed, thereby improving the convenience of the pressing operation.

[0062] The housing assembly 22 also includes a bracket 220 and a reset member 224. The base plate of the bracket 220 is provided with a fixed platform 221 and a mounting cylinder 222. The injection needle 244 is mounted on the fixed platform 221. The pressing member 240 is movably inserted into the mounting cylinder 222 and cooperates with the stop of the mounting cylinder 222. The reset member 224 is sleeved on the mounting cylinder 222 and the pressing member 240 and is elastically compressed between the base plate of the bracket 220 and the stop on the pressing member 240. The pressing member 240 is connected to the injection needle 244 through a hose.

[0063] The pressing element 240 passes through the mounting cylinder 222 and can move relative to the mounting cylinder 222 to drive the connected pump mechanism 14. When the user releases the pressing element 240, the elastic restoring force of the reset element 224 pushes the pressing element 240 upward, thereby achieving automatic reset to facilitate the next injection operation. At the same time, the pressing element 240 is restricted by the stop of the mounting cylinder 222 and cannot detach from the mounting cylinder 222, allowing the pressing element 240 to accept reciprocating pressing operations. The mounting cylinder 222 also guides the pressing element 240 during the pressing process, ensuring reliable and convenient pressing action.

[0064] The end of the pressing member 240 protrudes from the end face of the bracket 220 toward the pumping mechanism 14 so that the end abuts against the sealing sleeve 114 on the pumping mechanism 14, thereby stably transmitting pressing force to the piston member 142 during pressing operation and ensuring smooth operation of the pumping mechanism 14.

[0065] In this embodiment, the second positioning part 212 is disposed on the end face of the bracket 220 facing the pump mechanism 14.

[0066] The reset component 224 is a compression spring, which is sleeved on the outside of the mounting cylinder 222 and compressed between the base plate of the bracket 220 and the stop of the pressing component 240. The pressing component 240 is stably reset by the elastic force of the spring.

[0067] Specifically, such as Figure 5As shown, the inner wall of the mounting cylinder 222 is provided with a plurality of spaced first stop blocks 223, and the outer wall of the pressing member 240 is provided with a plurality of second stop blocks 242. Each second stop block 242 passes through the circumferential gap between each first stop block 223 and forms a stop engagement with the corresponding first stop block 223 under the elastic support force of the reset member 224.

[0068] When the pressing member 240 is assembled with the mounting cylinder 222, the circumferential gaps between each second stop block 242 and each first stop block 223 correspond. After each second stop block 242 passes through the circumferential gaps between each first stop block 223, the pressing member 240 rotates a certain angle, so that each second stop block 242 and each first stop block 223 are stopped and limited along the pressing direction to prevent the pressing member 240 from disengaging from the mounting cylinder 222.

[0069] After installation, the pressing component 240 cannot rotate, thus avoiding the release of the stop limit between each second stop block 242 and each first stop block 223 in the pressing direction; the pressing component 240 can only be driven by external force to move axially along the mounting cylinder 222, which can ensure accurate and stable pressing action.

[0070] like Figure 3 and Figure 5 As shown, the housing assembly 22 also includes a housing 226 connected to the bracket 220, and a pressing member 240 is also assembled on the housing 226 and partially protrudes from the housing 226 for user operation. The housing 226 limits the pressing member 224 in the circumferential direction to prevent the pressing member 240 from rotating in the circumferential direction.

[0071] The injector 20 also includes a sounder disposed within the housing assembly 22. The sounder is used to emit a prompt sound when the injector assembly 24 moves down to a preset position to indicate to the user that the pressing operation has been completed. This prompt sound helps the user accurately grasp the completion point of the injector operation, improves the convenience of operation, and thus prevents the user from repeatedly injecting the same aerosol matrix.

[0072] The sounder can be an electronic device used to trigger a prompt sound when the pressing member 240 is pressed down to a preset position. For example, the pressing member is provided with a baffle, and the sounder is connected to an optocoupler. When the baffle moves down to the position of the optocoupler with the pressing member, a trigger signal can be generated, and then the sounder will emit a prompt sound. The sounder can also be a mechanical structure that emits a sound through mechanical linkage when the pressing member 240 moves down to the set position.

[0073] In this embodiment, the sounder includes a baffle 23 and a spring piece 25 connected to the bracket 220. The baffle 23 is mounted on the housing 226, and the spring piece 25 is disposed on one side of the pressing member 240. The pressing member 240 is also provided with a flange 241. The flange 241 is used to push the spring piece 25 when the pressing member 240 moves down, so that the spring piece 25 hits the baffle 23 and emits a prompting sound. The prompting sound is used to remind the user that one pressing operation is completed, that is, one injection operation is completed.

[0074] When the pressing component 240 moves down to the preset position, its flange 241 actuates the spring 25, causing the spring 25 to elastically deform and quickly rebound, thereby striking the baffle 23 and emitting a prompt sound to indicate to the user that the pressing operation is complete. This prompt sound helps the user accurately grasp the completion point of the injection operation, improving the convenience of operation and the user experience.

[0075] The mating surfaces of the flange 241 and the spring 25 are inclined or curved to facilitate smooth plucking of the spring 25 during pressing, avoiding jamming or excessive resistance that could affect the accurate feedback of the prompt tone.

[0076] Both the baffle 23 and the spring 25 are made of metal, so they can produce a crisp sound when struck, further enhancing the user's sense of feedback.

[0077] See also Figure 3 , Figure 5 and Figure 6 ,in Figure 6 yes Figure 3 The diagram shows a cross-sectional view of the spring in the injector. The spring 25 includes an integrally structured insertion section 251, a deformable section 252, and a contact section 253. The insertion end 251 is inserted into the bracket 220. The deformable section 252 is bent and connected to the insertion end 251 and extends towards the pressing member 240. The deformable section 252 connects the insertion section 251 and the contact section 253. The flange 241 is used to actuate the deformable section 252, causing it to deform. The contact section 253 is used to open relative to the baffle 23 as the deformable section 252 deforms, and to strike the baffle 23 when the deformable section 252 returns to its original position, thereby emitting a prompt sound.

[0078] The spring 25 itself has good elasticity, which can ensure that the deformable section 23 rebounds quickly after it is separated from the flange 241, so that the contact foot section 253 strikes the baffle 23, thereby achieving stable prompt sound feedback.

[0079] The plug-in end 251 is fixedly connected to the bracket 220. Before the spring piece 25 deforms, the contact segment 253 is in contact with the baffle 23. When the pressing member 240 is pressed down to a certain extent, the flange 241 begins to push the deformable segment 252, causing it to undergo elastic deformation. The deformed segment 252 causes the contact segment 253 to disengage from the baffle 23. When the pressing member 240 is pressed down to the preset position, the deformable segment 252 undergoes a large degree of deformation and passes over the flange 241. At this time, the deformable segment 252 quickly returns to its original position under its own elastic force, causing the contact segment 253 to strike the baffle 23 sharply, thereby emitting a clear prompt sound to indicate the completion of a liquid injection operation, ensuring that the user accurately perceives the completion of the liquid injection operation.

[0080] In this embodiment, the deformable segment 252 includes an arc-shaped top 254. The arc-shaped top 254 is used to deform the deformable segment 252 by being pressed by the flange 241. When the flange 241 moves down to a preset position, the arc-shaped top 254 passes over the flange 241 and resets, so that the contact segment 253 strikes the baffle 23.

[0081] The flange 241 is also set as an arc-shaped structure, so that the flange 241 and the arc-shaped top 254 can form a line contact, so that the arc-shaped top 254 can pass over the flange 241 more smoothly, thereby reducing the frictional resistance during the tossing process and making the deformation and reset action of the spring 25 more sensitive and reliable.

[0082] When the pressing part 240 is reset, the flange 241 is also reset to its initial position, located above the arc-shaped top 254, and can be moved again by the spring piece 25 when pressed again.

[0083] Continue reading Figure 3 and Figure 5 The outer shell 226 is provided with a receiving cavity 227 and a pressing port 228 arranged side by side. The pressing member 240 is also provided in the pressing port 228. The fixing platform 221 is located at the bottom of the receiving cavity 227. The injection needle 244 is provided in the receiving cavity 227. The receiving cavity 227 is used to contain the aerosol matrix.

[0084] The pressing port 228 circumferentially limits the pressing member 240, and a portion of the pressing member 240 protrudes outside the pressing port 228 for the user to apply pressing force. Specifically, the pressing member 240 includes a detachably connected button 245 and an abutment 246. The abutment 246 is provided with a flange 241 and a plurality of second stop blocks 242. The abutment 246 is movably mounted on the mounting cylinder 222. The button 245 cooperates with the pressing port 228 and is exposed in the pressing port 228.

[0085] During the insertion of the aerosol matrix into the receiving cavity 227, the injection needle 244 pierces the filter section of the aerosol matrix. The receiving cavity 227 can correct the insertion direction of the aerosol matrix, ensuring that the aerosol matrix is ​​accurately aligned with the injection needle 244, thereby improving injection accuracy and ease of operation.

[0086] like Figure 3 and Figure 5 As shown, the injector 20 also includes a first sleeve 26 that is slidably sleeved on the outside of the fixed platform 221. The first sleeve 26 is used to be adjusted to enter the receiving cavity 227 and then to receive the aerosol matrix.

[0087] The receiving cavity 227 has a first radial dimension, and the first sleeve 26 has a second radial dimension. The first radial dimension is larger than the second radial dimension. Therefore, the receiving cavity 227 and the first sleeve 26 respectively accommodate two different specifications of aerosol substrates, thereby improving the applicability and compatibility of the liquid injector 20 to the aerosol substrate. This enables the liquid injection device 100 to be adapted to two different specifications of aerosol substrates, improving the versatility and compatibility of the liquid injection device 100.

[0088] See also Figure 3 and Figure 7 ,in Figure 7 yes Figure 3 The diagram shows the structure of the injection device when the first sleeve is in the first position. Figure 7 As shown, when the first sleeve 26 is not in the receiving cavity 227, the receiving cavity 227 contains the aerosol matrix of the first specification; as Figure 3 As shown, when the first sleeve 26 enters the receiving cavity 227, the second specification aerosol matrix is ​​received by the first sleeve 26.

[0089] In this embodiment, the outer shell 226 is provided with an adjustment window 229 communicating with the receiving cavity 227, and the first sleeve 26 is provided with an adjustment part 261. The adjustment part 261 is disposed in the adjustment window 229 so that the first sleeve 26 can be switched between a first position and a second position through the adjustment part 261. When the first sleeve 26 is in the first position, the first sleeve 26 does not protrude from the fixed platform 221 and the receiving cavity 227 receives the aerosol substrate. When the first sleeve 26 is in the second position, the first sleeve 26 protrudes from the fixed platform 221 and enters the receiving cavity 227, and the first sleeve 26 receives the aerosol substrate.

[0090] The user moves the adjustment unit 261 within the adjustment window 229, thereby causing the first sleeve 26 to slide, switching between a first position and a second position to selectively accommodate aerosol substrates of different specifications. When the first sleeve 26 is in the first position, it is not in the receiving cavity 227, at which point the receiving cavity 227 directly accommodates an aerosol substrate of the first specification; while when the first sleeve 26 enters the receiving cavity 227 and reaches the second position, the first sleeve 26 accommodates an aerosol substrate of the second specification, thus achieving adaptation to aerosol substrates of different specifications.

[0091] By setting the adjustment window 229 and the adjustment part 261, the user can conveniently and efficiently change the position of the first sleeve 26. By switching the position of the first sleeve 26, the liquid injection device 100 can be compatible with different specifications of aerosol substrates, thereby improving its ease of use and versatility.

[0092] Continue reading Figure 3 , Figure 5 and Figure 7 Furthermore, the bracket 220 also includes an arc-shaped plate 225 arranged around the fixed platform 221, and the first sleeve 26 is slidably disposed between the fixed platform 221 and the arc-shaped plate 225; wherein, the arc-shaped plate 225 or the fixed platform 221 is provided with positioning ribs, and the first sleeve 26 is provided with a first positioning groove 263 and a second positioning groove 264 that are positioned and engaged with the positioning ribs; when the first sleeve 26 is in the first position, the first positioning groove 263 is positioned and engaged with the positioning ribs; when the first sleeve 26 is in the second position, the second positioning groove 264 is positioned and engaged with the positioning ribs.

[0093] The positioning fit between the first positioning groove 263 and the second positioning groove 264 and the positioning rib makes the first sleeve 26 more stable and reliable in the first position and the second position, avoiding positional deviation or shaking of the first sleeve 26, thereby ensuring the positional accuracy and stability of the first sleeve 26.

[0094] See Figure 8 , Figure 8 yes Figure 3 The diagram shows the structure of the injector when both the first sleeve and the second sleeve are in the first position.

[0095] The injector 20 also includes a second sleeve 27 that is slidably sleeved between the first sleeve 26 and the fixed platform 221. The first sleeve 26 and the second sleeve 27 are adjusted in sequence to enter the receiving cavity 227 so that the aerosol matrix can be received by the second sleeve 27.

[0096] The first sleeve 26 and the second sleeve 27 are fitted together. The second sleeve 27 is also provided with an adjustment part 271. The first sleeve 26 and the second sleeve 27 are stacked together. The cylinder wall of the first sleeve 26 is provided with a relief groove for the adjustment part 261 of the second sleeve 27 to slide. The adjustment part 271 of the second sleeve 27 passes through the relief groove and extends into the adjustment window 229, so that the user can drive the second sleeve 27 to slide by operating the adjustment part 261, without obstructing the sliding of the first sleeve 26.

[0097] The second sleeve 27 has a third radial dimension, which is smaller than the second radial dimension of the first sleeve 26. After the second sleeve 27 enters the receiving cavity 227, it can accommodate a third-sized aerosol substrate. Therefore, the receiving cavity 227, together with the slidably adjustable first sleeve 26 and second sleeve 27, can be adjusted in multiple stages according to different specifications of the aerosol substrate, further enhancing the compatibility and applicability of the liquid injection device 100.

[0098] By setting the second sleeve 27 to slide and engage with the first sleeve 26, the applicability range of the injector 20 to aerosol substrates can be further expanded, enabling the injector 20 to adapt to more specifications of aerosol substrates, thereby improving its flexibility and applicability.

[0099] When neither the first sleeve 26 nor the second sleeve 27 enters the receiving cavity 227, the receiving cavity 227 directly receives the first specification of aerosol substrate; when the first sleeve 26 enters the receiving cavity 227 and reaches the second position, the first sleeve 26 receives the second specification of aerosol substrate; when both the first sleeve 26 and the second sleeve 27 enter the receiving cavity 227 and reach the third position, the second sleeve 27 receives the third specification of aerosol substrate, thereby achieving compatibility and adaptation for three different specifications of aerosol substrate.

[0100] The sliding adjustment method of the second sleeve 27 is similar to that of the first sleeve 26. Through the adjustment window 229 cooperating with the adjustment part 261, the user can easily adjust its position. In actual operation, the user can adjust the first sleeve 26 and the second sleeve 27 sequentially, selectively allowing them to enter the receiving cavity 227 to accommodate aerosol substrates of different sizes. Furthermore, the second sleeve 27 is also provided with a positioning groove structure, which cooperates with the positioning ribs on the fixed platform 221 to enhance its positioning stability during sliding.

[0101] See again Figure 2 and Figure 3The housing assembly 22 includes an end cap 28 rotatably connected to the outer shell 226. The end cap 28 is provided with a first magnetic member 281, and the pressing member 240 is provided with a second magnetic member 243. The end cap 28 is used to fasten onto the outer shell 226 to cover the receiving cavity 227 and the pressing member 240 to prevent foreign objects from entering the receiving cavity 227. When the end cap 28 is fastened onto the outer shell 226, the first magnetic member 281 and the second magnetic member 243 are magnetically connected, so that the end cap 28 is securely sealed onto the outer shell 226.

[0102] When the user needs to open the end cover 28, they only need to overcome the magnetic attraction and rotate the end cover 28 off the outer shell 226 to open it. The operation is convenient and the structure is stable. In addition, the magnetic attraction between the first magnetic member 281 and the second magnetic member 243 also improves the connection reliability between the end cover 28 and the outer shell 226, effectively preventing the end cover 28 from falling off due to accidental collisions or vibrations.

[0103] Both the first magnetic clasp 281 and the second magnetic clasp 243 can be magnets, with their opposite magnetic poles attracting each other to achieve a stable connection between the end cap 28 and the outer shell 226. Alternatively, one of the first magnetic clasp 281 and the second magnetic clasp 243 can be a magnet, while the other is a magnetic mating component, such as an iron sheet or magnetic material, which can also achieve a stable magnetic connection.

[0104] Unlike existing technologies, this application discloses a liquid injection device. By incorporating a sounder within the housing assembly, the sound of the sounder is linked to the pressing and injection action of the liquid injection assembly. When the liquid injection assembly moves to a preset position, a prompt sound is emitted to indicate to the user that the pressing operation is complete. This prompt sound helps the user accurately grasp the completion point of the liquid injection operation, improving operational convenience and preventing the user from repeatedly injecting the same aerosol matrix.

[0105] The above descriptions are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the description and drawings of this application, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

Claims

1. A liquid injection device characterized by comprising: The injection device includes: Liquid reservoir; The liquid injector includes a housing assembly and a liquid injection component and a sounder disposed in the housing assembly. The liquid injection component is used to pump out liquid from the reservoir by receiving pressure, and the sounder is used to emit a prompt sound when the liquid injection component moves to a preset position.

2. The liquid injection apparatus according to claim 1, wherein The sound-emitting device includes a baffle and a spring, and the housing assembly includes a bracket and a housing connected to the bracket. The baffle is mounted on the housing, and the spring is connected to the bracket. The injection assembly includes a pressing element, which is movably mounted on the bracket; The pressing component is used to receive pressure to pump out the liquid in the reservoir. When the pressing component is pressed down, it moves the spring piece, causing the spring piece to strike the baffle and emit a prompt sound.

3. The liquid injection device according to claim 2, wherein The pressing component is also provided with a flange, which is used to actuate the spring piece as the pressing component moves down, so that the spring piece strikes the baffle and emits a prompt sound.

4. The liquid injection apparatus according to claim 3, wherein The spring includes an integrally structured insertion section, a deformable section, and a contact section. The insertion section is inserted into the bracket, the deformable section is bent and connected to the insertion section and extends towards the pressing member, and the deformable section is connected between the insertion section and the contact section. The flange is used to actuate the deformable segment to cause it to deform, and the contact segment is used to open relative to the baffle as the deformable segment deforms, and to strike the baffle when the deformable segment returns to its original position.

5. The liquid injection device according to claim 4, characterized in that, The deformable segment includes an arc-shaped top, which is used to deform the segment by being pressed by the flange. When the flange moves down to a preset position, the arc-shaped top passes over the flange and resets, so that the contact foot segment strikes the baffle.

6. The liquid injection apparatus according to claim 2, wherein The housing assembly includes an end cap rotatably connected to the outer shell, the end cap having a first magnetic attraction element, and the pressing element having a second magnetic attraction element, the end cap being used to fasten to the outer shell; When the end cap is fastened to the outer shell, the first magnetic component and the second magnetic component are magnetically connected.

7. The liquid injection apparatus according to claim 2, wherein The housing assembly further includes a reset member. The base plate of the bracket is provided with a mounting cylinder. The pressing member is movably inserted through the mounting cylinder and cooperates with the stop of the mounting cylinder. The reset member is sleeved on the mounting cylinder and the pressing member and is elastically compressed between the base plate of the bracket and the stop on the pressing member.

8. The liquid injection device according to claim 7, characterized in that, The inner wall of the mounting cylinder is provided with a plurality of spaced first stop blocks, and the outer wall of the pressing member is provided with a plurality of second stop blocks. Each second stop block passes through the circumferential gap between each first stop block and forms a stop engagement with the corresponding first stop block under the elastic support force of the reset member.

9. The liquid injection device according to claim 7, characterized in that, The base plate of the bracket is provided with a fixed platform, and the liquid injection assembly also includes a liquid injection needle communicating with the pressing component, the liquid injection needle being mounted on the fixed platform; The outer shell is provided with a receiving cavity and a pressing port arranged side by side. The pressing element is also disposed in the pressing port. The fixing platform is located at the bottom of the receiving cavity. The injection needle is disposed in the receiving cavity. The receiving cavity is used to contain the aerosol matrix.

10. The liquid injection device according to claim 2, characterized in that, The liquid reservoir includes a liquid storage element and at least two pumping mechanisms. The liquid storage element has at least two isolated liquid storage chambers. Each pumping mechanism is connected to the corresponding liquid storage chamber and is driven to pump out the liquid in the liquid storage chamber. The bracket is rotatably connected to the liquid storage component, and the pressing member abuts against one of the pumping mechanisms and is connected to the pumping mechanism. The pressing member is used to drive the pumping mechanism to work under pressure so as to pump out the liquid in the liquid storage chamber. Specifically, by driving the housing assembly to rotate relative to the liquid storage component, the pressing component is switched to be connected to different pumping mechanisms.

11. The liquid injection device according to claim 10, characterized in that, The liquid reservoir also includes an elastic element disposed within the liquid reservoir. The support has a rotating column at one end facing the liquid reservoir, and the rotating column is rotatably connected to the liquid reservoir. One end of the elastic element elastically abuts against the end of the rotating column opposite to the support, and the other end of the elastic element elastically abuts against the inner wall of the liquid reservoir. The elastic element allows the rotating column to undergo axial displacement, enabling the housing assembly to rotate relative to the liquid reservoir, and provides elastic force to maintain the connection between the pressing element and one of the pumping mechanisms when the pressing element switches to communication with the pumping mechanism.

12. The liquid injection device according to claim 11, wherein The liquid storage component is provided with at least one first positioning part on the end face facing the liquid injector, and the bracket is provided with at least one second positioning part that cooperates with the first positioning part on the end face facing the liquid storage component; When the pressing member is switched to be connected to different pumping mechanisms, the corresponding first positioning part and the second positioning part cooperate to limit the rotational position of the housing assembly relative to the liquid storage component.

13. The liquid injection device according to claim 12, wherein The liquid storage component includes a top cover with a first through hole. The rotating column is rotatably disposed in the first through hole, and the elastic element is accommodated in the first through hole with the other end of the elastic element abutting against the top cover.

14. The liquid injection apparatus according to claim 13, wherein Each of the pumping mechanisms is fitted with a sealing sleeve at its end facing the injector, and the sealing sleeve is used to form an elastic abutment with the pressing member.

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