Liquid dispensing device with transfer chamber

Abstract

The present disclosure describes a liquid dispensing device with a transfer chamber, which includes a supporting mechanism, a transfer chamber, a transport mechanism, and a transfer mechanism. The supporting mechanism is configured to support the transfer chamber for accommodating a first container and a second container. The chamber door of the transfer chamber is configured to be triggered to open or close, and the carrying portion of the transfer chamber for carrying the first container is configured to be triggered to open or close. When placing the container, the chamber door of the transfer chamber is triggered to open, and the transport mechanism places the first container on the carrying portion. When discharging the container, the carrying portion of the transfer chamber is triggered to open to allow the first container to fall. According to the present disclosure, liquid splashing can be effectively suppressed by the transfer chamber, and the first container can be placed or discharged in the transfer chamber with simple operation when dispensing liquid.

Description

Technical Field

[0001] The present disclosure relates to a liquid dispensing device having a liquid transfer chamber. Background Art

[0002] Infusion is a commonly used medical procedure in clinical practice, allowing liquid substances such as medications and nutritional solutions to be infused into patients to aid their recovery. When patients require infusions, they often need to mix multiple different infusion medications based on their condition to create a more effective therapeutic solution. In clinical practice, medical staff transfer medications from different containers, such as ampoules or vials, into an infusion bag for mixing to obtain the desired therapeutic solution.

[0003] Currently, medical personnel typically use manual operations to mix the therapeutic liquid required for infusion for patients. For example, when transferring liquid between an ampoule and an infusion bag, the liquid is manually drawn into or injected into the ampoule.

[0004] However, due to the current shortage of medical staff in medical institutions, manual operation is difficult to efficiently prepare liquid medicine when facing large-scale infusion needs. Therefore, there is a need to provide a device that can assist medical staff in preparing liquids, especially a liquid preparation device with a pipetting chamber that can suppress liquid splashing and can easily place or remove ampoules in the pipetting chamber. Summary of the Invention

[0005] The present disclosure is proposed in view of the above-mentioned state of the prior art, and its purpose is to provide a liquid dispensing device having a pipetting chamber capable of suppressing liquid splashing and capable of placing or discharging an ampoule in the pipetting chamber in an easy-to-operate manner.

[0006] To this end, the present disclosure provides a liquid preparation device with a liquid transfer chamber, which is a liquid preparation device for preparing a solution contained in a first container and a solution contained in a second container by a syringe, wherein the liquid preparation device has a bottle feeding station, a liquid transfer station and a bottle discharge station, and the liquid preparation device includes a supporting mechanism, a liquid transfer chamber, a transport mechanism, a liquid transfer mechanism and a first guiding mechanism and a second guiding mechanism, wherein the supporting mechanism includes a first supporting part and a second supporting part adjacent to each other, the first supporting part is configured to support the liquid transfer chamber, the second supporting part is configured to support the second container, and the supporting mechanism The mechanism is configured to be movable relative to the first guide mechanism and the second guide mechanism, the pipetting chamber comprising a base configured to be assembled on the first supporting portion and having a notch communicating with the upper and lower portions, a carrying portion mounted on the base and movable along the notch and used to carry the first container, a clamping portion mounted on the base and releasably clamping the first container, a cover shell provided on the base and having a chamber door, a first triggering portion linked to the chamber door, and a second triggering portion linked to the carrying portion, the cover shell having an opening on a side opposite to the base, and the pipetting mechanism being configured to be assembled on the first supporting portion and having a notch communicating with the upper and lower portions, a carrying portion mounted on the base and movable along the notch and used to carry the first container, a clamping portion mounted on the base and releasably clamping the first container, The container is configured to hold the syringe and aspirator. When the pipetting chamber is located at the bottle feeding station, the pipetting chamber moves toward the first guide mechanism through the relative movement of the supporting mechanism and the first guide mechanism, the first trigger part is triggered by the first guide mechanism to open the chamber door, the transport mechanism places the first container on the carrying portion, and the clamping portion clamps the first container. When the pipetting chamber moves away from the first guide mechanism through the relative movement of the supporting mechanism and the first guide mechanism, and the first trigger part returns to an untriggered state to close the chamber door, when the chamber door is closed and the pipetting chamber is located at the pipetting station, the pipetting mechanism controls the syringe and aspirator to perform pipetting between the first container and the second container through the opening. When the chamber door is closed and the pipetting chamber is located at the bottle discharging station, the pipetting chamber moves toward the second guide mechanism through the relative movement of the supporting mechanism and the second guide mechanism, the second trigger part is triggered by the second guide mechanism to move the carrying portion relative to the notch, and the clamping portion releases the first container to allow the first container to fall through the notch.

[0007] In the liquid dispensing device disclosed herein, a support mechanism supports a transfer chamber and a second container, and the first container is placed in the transfer chamber. The transfer chamber has a base that can be assembled on a first support portion and has a notch, a supporting portion configured to be movable along the notch and used to support the first container, and a cover shell that is provided on the base and has a chamber door that can be opened and closed in a trigger-type manner. When the support mechanism moves relative to the first guide mechanism and the second guide mechanism, the chamber door can be opened by triggering the first guide mechanism, thereby facilitating the placement of the first container in the transfer chamber, and the supporting portion can be moved along the notch by triggering the second guide mechanism to open the notch, thereby facilitating the discharge of the first container from the transfer chamber. In this way, liquid splashing can be effectively suppressed by the transfer chamber, and the first container can be easily placed in the transfer chamber when dispensing liquid.

[0008] In addition, in the liquid dispensing device of the present disclosure, optionally, the support mechanism is disc-shaped and configured to rotate in the left-right direction, the first support portion and the second support portion are provided on the outer periphery of the support mechanism, and the first guide mechanism is arranged along the circumferential direction of the support mechanism on the travel path of the first trigger portion, and the second guide mechanism is arranged along the circumferential direction of the support mechanism on the travel path of the second trigger portion. In this case, when the support mechanism rotates, the first trigger portion can move to the first guide mechanism and be triggered, and the second trigger portion can move to the second guide mechanism and be triggered, thereby providing a trigger mechanism with a simplified structure.

[0009] In addition, in the liquid dispensing device of the present disclosure, the door may optionally include a first leaf and a second leaf standing side by side in a vertical direction, and a first rotating shaft and a second rotating shaft provided on left and right sides of the first leaf and the second leaf, respectively. The first leaf is linked to the first rotating shaft and configured to rotate left and right about the first rotating shaft, and the second leaf is linked to the second rotating shaft and configured to rotate left and right about the second rotating shaft. In this case, the first leaf and the second leaf can be conveniently opened or closed by rotating the first rotating shaft and the second rotating shaft.

[0010] In addition, in the liquid dispensing device involved in the present disclosure, optionally, the first trigger part has an initial posture and a trigger posture. When the first trigger part is converted from the initial posture to the trigger posture, the first fan and the second fan rotate in opposite directions to open the warehouse door. When the first trigger part is converted from the trigger state to the initial posture, the first fan and the second fan rotate in opposite directions to close the warehouse door.

[0011] Additionally, in the liquid dispensing device of the present disclosure, the first triggering portion optionally includes an actuating member configured to be guided by the first guide mechanism, a transmission member connected to the actuating member and linked to the first rotating shaft and the second rotating shaft, and a return member linked to the actuating member, the return member configured to provide a return action for returning the first triggering portion from a triggered position to an initial position. In this case, the first guide mechanism guides the actuating member, and the return action is provided by the return member, thereby enabling trigger-activated opening or closing of the chamber door.

[0012] In addition, in the liquid dispensing device of the present disclosure, the supporting portion optionally includes a first slide rail and a second slide rail disposed on the base and arranged side by side on left and right sides of the notch, and a tray slidably connected to the first and second slide rails, wherein the tray slides along the first and second slide rails to cover or open the notch. In this case, sliding the tray to open the notch facilitates discharge of the first container.

[0013] In addition, in the liquid dispensing device involved in the present disclosure, optionally, the second trigger part has an initial posture and a trigger posture. When the second trigger part is in the initial posture, the gap is covered by the tray. When the second trigger part is in the trigger posture, the tray slides along the first slide rail and the second slide rail to open the gap.

[0014] In addition, in the liquid dispensing device involved in the present disclosure, optionally, the second trigger part includes a traction member configured to be guided by the second guide mechanism, a connecting member for connecting the traction member and the tray, and a return member arranged along the extension direction of the first guide rail and the second guide rail and linked to the tray, and the return member is configured to provide a return action for returning the second trigger part from a trigger posture to an initial posture.

[0015] In addition, in the liquid dispensing device involved in the present disclosure, optionally, the clamping portion includes a clamping arm and a toggle rod linked to the clamping arm, and the liquid dispensing device includes a driving mechanism for driving the toggle rod.

[0016] Furthermore, in the liquid dispensing device of the present disclosure, optionally, the first support portion is U-shaped, the base is tongue-shaped to match the first support portion, and the base can be moved from the opening of the first support portion toward the closed portion of the first support portion to engage with the first support portion. Thus, the base can be conveniently assembled to the first support portion.

[0017] According to the liquid dispensing device with the liquid transfer chamber disclosed in the present invention, when dispensing liquid, the first container can be easily taken and placed in the liquid transfer chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present disclosure will now be explained in further detail, by way of example only, with reference to the accompanying drawings, in which:

[0019] Figure 1 Schematic diagram showing the entirety of the liquid dispensing device according to the example of the present disclosure.

[0020] Figure 2 It is a partial schematic diagram showing the liquid dispensing device involved in the example of the present disclosure.

[0021] Figure 3 It is a schematic diagram showing the process of liquid dispensing by the liquid dispensing device involved in the example of the present disclosure.

[0022] Figure 4 2 is a schematic structural diagram showing a first supporting portion involved in an example of the present disclosure.

[0023] Figure 5A 1 is an overall schematic diagram showing a pipetting chamber involved in an example of the present disclosure; Figure 5B 2 is a schematic diagram showing an exploded view of the pipetting chamber involved in the example of the present disclosure.

[0024] Figure 6A is a schematic diagram showing a first viewing angle of the pipetting cartridge according to an example of the present disclosure when the pipetting cartridge has not yet been assembled to the first supporting portion; Figure 6B is a schematic diagram showing a second viewing angle of the pipetting cartridge according to an example of the present disclosure when the pipetting cartridge has not yet been assembled to the first supporting portion; Figure 6C is a schematic diagram showing a first viewing angle of the pipetting cartridge according to an example of the present disclosure when the pipetting cartridge is assembled to the first supporting portion; Figure 6D 3 is a schematic diagram showing a second viewing angle when the pipetting cartridge according to the example of the present disclosure is assembled to the first supporting portion.

[0025] Figure 7A 1 is a schematic diagram showing a closed door of a pipetting chamber according to an example of the present disclosure;

[0026] Figure 7B 2 is a schematic diagram showing the door of the pipetting chamber involved in the example of the present disclosure being opened. Figure 7C It shows Figure 7A Schematic diagram of the cross section along YY'.

[0027] Figure 8A is a schematic diagram showing that the first triggering portion involved in the example of the present disclosure moves to the front of the first guide mechanism and is not triggered; Figure 8B is a schematic diagram showing that the first triggering portion involved in the example of the present disclosure moves to the first guide mechanism and is triggered; Figure 8C 2 is a schematic diagram showing that the first triggering portion involved in the example of the present disclosure is away from the first guiding mechanism and is not triggered.

[0028] Figure 9 Schematic diagram showing the structure of the carrier involved in the example of the present disclosure.

[0029] Figure 10A is a schematic diagram showing a first viewing angle when the second triggering portion involved in the example of the present disclosure moves to the second guide mechanism and is not triggered; Figure 10B is a schematic diagram showing a second viewing angle when the second triggering portion involved in the example of the present disclosure moves to the second guide mechanism and is not triggered; Figure 10C is a schematic diagram showing a first viewing angle when the second triggering portion involved in the example of the present disclosure moves to the second guide mechanism and is triggered; Figure 10D is a schematic diagram showing a second viewing angle when the second triggering portion involved in the example of the present disclosure moves to the second guide mechanism and is triggered; Figure 10E is a schematic diagram showing a first viewing angle when the second triggering portion involved in the example of the present disclosure is away from the second guiding mechanism and is not triggered; Figure 10F 3 is a schematic diagram showing a second viewing angle when the second triggering portion involved in the example of the present disclosure is away from the second guiding mechanism and is not triggered. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. In the following description, identical components are assigned identical reference numerals, and duplicate descriptions are omitted. In addition, the accompanying drawings are merely schematic, and the proportions of the dimensions of the components and the shapes of the components may differ from the actual ones.

[0031] It should be noted that the terms "including" and "having" and any variations thereof in this disclosure, such as a process, method, system, product or device that includes or has a series of steps or units, are not necessarily limited to those steps or units clearly listed, but may include or have other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0032] In addition, the subheadings and the like in the following description of this disclosure are not intended to limit the content or scope of this disclosure, but are merely provided as a guide for reading. Such subheadings should not be understood as dividing the content of the article, nor should the content under the subheading be limited to the scope of the subheading.

[0033] This embodiment relates to a liquid dispensing device with a liquid transfer chamber. This device uses a syringe to transfer a solution between a first container and a second container to dispense liquid. The liquid dispensing device with a liquid transfer chamber can be referred to as a liquid dispensing device, a dispensing machine, a dispensing device, an automatic dispensing device, a liquid drug preparation device, or a liquid drug mixing device. In the liquid dispensing device of this embodiment, by accommodating the first container in the liquid transfer chamber, liquid splashing and its resulting adverse effects can be effectively suppressed. Furthermore, the first container can be easily placed in and removed from the liquid transfer chamber during dispensing.

[0034] Hereinafter, the liquid dispensing device with a liquid transfer chamber according to the present embodiment will be described in detail with reference to the accompanying drawings.

[0035] Figure 1 1 is a schematic diagram showing the entire liquid dispensing device 1 according to this embodiment. Figure 2 1 is a partial schematic diagram showing a liquid dispensing device 1 according to this embodiment.

[0036] It should be noted that the relative position and relative direction terms such as "above", "towards above", "below", "towards downward", "up and down direction", "left side", "towards the left side", "left direction", "towards the left", "right side", "towards the right side", "right side", "towards the right", "left and right direction", "front", "towards the front", "back", "towards the back", "front and back direction" in this document refer to the normal operating posture and should not be considered as restrictive.

[0037] In this embodiment, the liquid dispensing device 1 can be used to transfer liquid between the first container 100 and the second container 200 (see Figure 1 and Figure 2 That is, the liquid dispensing device 1 can transfer the liquid contained in the first container 100 to the second container 200, and the liquid dispensing device 1 can also transfer the liquid contained in the second container 200 to the first container 100. In some examples, the liquid dispensing device 1 can transfer liquid between the first container 100 and the second container 200 using the syringe 300.

[0038] In this embodiment, the first container 100 may include a main body for containing the liquid medicine and a bottleneck extending along the main body (see Figure 2 In some examples, the first container 100 may be an ampoule or a vial.

[0039] In this embodiment, the second container 200 may include a main body having a receiving cavity for receiving the liquid medicine and a neck having a hollow passage and communicating with the receiving cavity (see Figure 2 In some examples, the second container 200 may be an infusion bag.

[0040] Hereinafter, the liquid dispensing device 1 according to the present embodiment will be described by taking an ampoule bottle and an infusion bag as examples.

[0041] In this embodiment, the liquid dispensing device 1 can be used in conjunction with the first conveying device 500, the first pre-treatment device 600, the second conveying device 800 and the second pre-treatment device 900 to form a liquid dispensing system capable of automatic liquid dispensing (see Figure 1 The first conveying device 500 can externally convey an ampoule to the first pretreatment device 600, and the first pretreatment device 600 can pretreatment the ampoule, for example, the first pretreatment device 600 can remove the cap of the ampoule. The second conveying device 800 can externally convey an infusion bag to the second pretreatment device 900, and the second pretreatment device 900 can pretreatment the infusion bag, for example, the second pretreatment device 900 can remove the cap of the infusion bag.

[0042] In addition, in some examples, the liquid dispensing system may further include an identification device 700 disposed between the first pre-processing device 600 and the liquid dispensing device 1 (see Figure 1 The identification device 700 can identify the ampoule bottle whose cap has been removed to determine whether the ampoule bottle is the desired ampoule bottle.

[0043] In some examples, the liquid preparation device 1 can perform transfer between an ampoule with its cap removed and an infusion bag with its cap removed.

[0044] In this embodiment, the liquid dispensing device 1 may include a supporting mechanism 10, a liquid transfer chamber 20, a transport mechanism 30, and a liquid transfer mechanism 40 (see Figure 1 and Figure 2 The support mechanism 10 can be used to support the transfer chamber 20 and the infusion bag, the transport mechanism 30 can transport the ampoule bottle from the identification device 700 to the transfer chamber 20, and the pipetting mechanism 40 can control the syringe 300 to transfer liquid between the ampoule bottle and the infusion bag.

[0045] Figure 3 1 is a schematic diagram showing the flow of liquid dispensing by the liquid dispensing device 1 according to the example of the present disclosure. Figure 3 As shown, the process of the liquid dispensing device 1 dispensing liquid between the removed ampoule bottle and the removed infusion bag may include the following steps: placing the ampoule bottle in the transfer chamber 20 (step S100); transferring liquid between the ampoule bottle and the infusion bag (step S200); and discharging the ampoule bottle from the transfer chamber 20 (step S300).

[0046] In addition, in some examples, the liquid dispensing device 1 may include a bottle feeding station, a liquid transfer station, and a bottle evacuation station. In some examples, step S100 may be performed at the bottle feeding station, step S200 may be performed at the liquid transfer station, and step S300 may be performed at the bottle evacuation station.

[0047] In some examples, the support mechanism 10 may include a first support portion 11 and a second support portion 12 adjacent to each other (see Figure 2 The first supporting portion 11 can be configured to support the transfer chamber 20, and the second supporting portion 12 can be configured to support the infusion bag (see Figure 2 ).

[0048] In some examples, the support mechanism 10 may be disc-shaped and configured to rotate in a left-right direction, for example, Figure 2 In the embodiment shown, the support mechanism 10 rotates in the direction indicated by D1 or the direction indicated by D2. In some examples, the rotation direction of the support mechanism 10 can be along the horizontal plane, that is, Figure 2 The direction indicated by D1 may be horizontally leftward, and the direction indicated by D2 may be horizontally rightward. In some examples, the first support portion 11 and the second support portion 12 may be provided on the outer periphery of the support mechanism 10 (see Figure 2 ).

[0049] Figure 4 1 is a schematic diagram showing the structure of the first support portion 11 involved in the example of the present disclosure. In some examples, the first support portion 11 can be U-shaped (see Figure 4 ). Thus, a U-shaped structure for engagement can be provided. In some examples, the first support portion 11 can be in the shape of a thin plate. In addition, in some examples, a ridge-shaped protrusion is provided on the inner edge of the first support portion 11.

[0050] Figure 5A 1 is a schematic diagram showing the overall structure of the liquid transfer chamber 20 involved in the example of the present disclosure; Figure 5B 1 is a schematic exploded view showing the pipetting chamber 20 involved in the example of the present disclosure.

[0051] In some examples, the pipetting chamber 20 may include a base 21, a clamping portion 22 mounted on the base 21, and a cover 23 (see FIG. Figure 5A and Figure 5B The base 21 can be configured to be assembled on the first supporting portion 11 and can be used to carry the ampoule, the clamping portion 22 can clamp the ampoule, and the cover 23 can suppress liquid splashing during liquid preparation.

[0052] In some examples, a carrier 24 may be mounted on the base 21. The carrier 24 may be configured to carry an ampoule. The clamping portion 22 may be disposed above the carrier 24 to clamp the ampoule placed on the carrier 24.

[0053] In addition, in some examples, a ventilation member 235 may be provided on the housing 23 (see Figure 5B The airflow in the internal space of the pipetting chamber 20 can be guided to the outside through the ventilation member 235.

[0054] In this case, by mounting the clamping portion 22 and the cover 23 on the base 21 that can be mounted on the first support portion 11, a modular pipetting cartridge 20 that is easy to assemble or disassemble can be provided. Specifically, by mounting the base 21 on the first support portion 11, the entire pipetting cartridge 20 can be quickly mounted on the support mechanism 10; and by disassembling the base 21 from the first support portion 11, the entire pipetting cartridge 20 can be quickly disassembled from the support mechanism 10.

[0055] In some examples, the clamping portion 22 may include a clamping arm 221 and a connecting rod 222 linked to the clamping arm 221. In some examples, the clamping arm 221 is normally in a tightened state, and the clamping arm 221 can be opened by toggling the connecting rod 222. In this case, the clamping portion 22 can releasably clamp the ampoule.

[0056] Figure 6A is a schematic diagram showing a first viewing angle of the liquid transfer cartridge 20 according to an example of the present disclosure when the liquid transfer cartridge 20 has not yet been assembled to the first supporting portion 11; Figure 6B is a schematic diagram showing a second viewing angle when the pipetting cartridge 20 according to the example of the present disclosure has not yet been assembled to the first supporting portion 11; Figure 6C is a schematic diagram showing a first viewing angle of the liquid transfer cartridge 20 according to an example of the present disclosure when it is assembled to the first supporting portion 11; Figure 6D 1 is a schematic diagram showing a second viewing angle when the pipetting cartridge 20 according to the embodiment of the present disclosure is assembled to the first supporting portion 11. The first viewing angle can be understood as a top-down viewing angle, and the second viewing angle can be understood as a bottom-up viewing angle.

[0057] In some examples, the base 21 may be tongue-shaped and match the first support portion 11 (see Figure 5B In this case, the base 21 can be engaged with the first support portion 11 by moving the base 21 from the opening of the first support portion 11 toward the closed portion of the first support portion 11. Figure 6A and Figure 6B In the embodiment shown, the base 21 is inserted into the first supporting portion 11 along the direction indicated by D5 so that the base 21 is engaged with the first supporting portion 11. Thus, the base 21 can be conveniently assembled to the first supporting portion 11.

[0058] In some examples, a continuous ridge-like groove is provided on the outer periphery of the base 21 (see Figure 5B In this case, the thin, U-shaped first support portion 11 can be engaged with the base 21 by being inserted into the groove-shaped groove of the base 21. In some examples, the end of the base 21 inserted into the first support portion 11 is arc-shaped. This facilitates engagement.

[0059] In addition, in some examples, the base 21 can be roughly divided into two parts along its length direction, namely a first part 21a having a ridge-like groove and a second part 21b without a ridge-like groove (see Figure 5B The first portion 21 a may be engaged within the U-shaped structure of the first supporting portion 11 , and the second portion 21 b may be located outside the U-shaped structure of the first supporting portion 11 .

[0060] In addition, in some examples, a limit portion is formed at the connection between the first portion 21a and the second portion 21b. For example, at the connection between the first portion 21a and the second portion 21b, the width of the second portion 21b can be significantly greater than the width of the first portion 21a (see Figure 5B ). That is, the connection between the first part 21a and the second part 21b is formed in a step shape. In this case, when assembling, it is easy to limit the depth of the engagement, thereby effectively preventing over-engagement or under-engagement.

[0061] In addition, in some examples, the first support portion 11 may include a fastener for fastening the engaged base 21. Figure 6A 、 Figure 6B 、 Figure 6C and Figure 6D In the embodiment shown, the fasteners may be a left fastener 111 and a right fastener 112. The base 21 may be provided with a left fastening slot 211 that cooperates with the left fastener 111 and a right fastening slot 212 that cooperates with the right fastener 112 (see FIG. Figure 6B and Figure 6D The left fastener 111 and the right fastener 112 are configured to be respectively engaged with the left fastening slot 211 and the right fastening slot 212 , thereby suppressing the base 21 from sliding undesirably within the first support portion 11 .

[0062] In some examples, the left fastener 111 and the right fastener 112 can be respectively disposed on opposite sides of the U-shaped structure of the first support portion 11. Correspondingly, the left fastening slot 211 and the right fastening slot 212 can be respectively disposed on opposite sides of the tongue-shaped structure of the base 21.

[0063] The following, combined Figure 6B, the left fastener 111 and the right fastener 112 are described in detail.

[0064] See also Figure 6B and Figure 6D The left fastener 111 may include a left fulcrum 111a, a left power arm 111b and a left resistance arm 111c located on both sides of the left fulcrum 111a and rotatable around the left fulcrum 111a, and a left tension spring 111d pulling the left power arm 111b. Under the traction of the left tension spring 111d, the left power arm 111b provides power to make the left resistance arm 111c tend to extend toward the inside of the U-shaped structure of the first support portion 11 (see Figure 6B ), and when the base 21 is engaged with the first support portion 11, the left resistance arm 111c can be engaged with the left fastening slot 211 corresponding to the position of the left resistance arm 111c, thereby fastening the base 21 (see Figure 6D When the base 21 needs to be removed from the first supporting portion 11, the left power arm 111b is actuated toward the inside of the U-shaped structure of the first supporting portion 11 against the tension of the left tension spring 111d, thereby causing the left resistance arm 111c to separate from the left fastening slot 211. The base 21 can then be pulled outward from the first supporting portion 11 and removed.

[0065] Similarly, the right fastener 112 may include a right fulcrum 112a, a right power arm 112b and a right resistance arm 112c located on either side of the right fulcrum 112a and rotatable about the right fulcrum 112a, and a right tension spring 112d for pulling the right power arm 112b. The operating mechanism of the right fastener 112 is the same as that of the left fastener 111, and reference may be made to the above description of the left fastener 111.

[0066] In some examples, the housing 23 may include a door 230 (see Figure 5B In some examples, the door 230 may include a first leaf 231 and a second leaf 232. The first leaf 231 and the second leaf 232 may be arranged in an upright position. The first leaf 231 and the second leaf 232 may be arranged side by side. The first leaf 231 may be linked to a first rotating shaft 233 arranged in a vertical direction and configured to rotate around the first rotating shaft 233. The second leaf 232 may be linked to a second rotating shaft 234 arranged in a vertical direction and configured to rotate around the second rotating shaft 234. In this case, the first leaf 231 and the second leaf 232 can be conveniently opened or closed by rotating the first rotating shaft 233 and the second rotating shaft 234.

[0067] Additionally, in some examples, the first fan 231 and the second fan 232 may be in the shape of thin plates.

[0068] Figure 7A 2 is a schematic diagram showing the door 230 of the pipetting chamber 20 according to the example of the present disclosure being closed; Figure 7B 2 is a schematic diagram showing the door 230 of the pipetting chamber 20 according to the example of the present disclosure being opened; Figure 7C It shows that along Figure 7A The cross-sectional view along line YY' is a cross-sectional view along the horizontal direction.

[0069] In some examples, the pipetting chamber 20 may further include a first triggering portion 25 linked to the chamber door 230 (see Figure 5B 、 Figure 7A and Figure 7B ).

[0070] In some examples, the first trigger portion 25 may have an initial posture and a trigger posture. When the first trigger portion 25 is converted from the initial posture to the trigger posture, the first fan 231 and the second fan 232 may rotate in opposite directions to open the door 230 (see FIG. 7A to 7B ). That is to say, in Figure 7A and Figure 7B In the embodiment shown, when the first trigger portion 25 is in the initial position, the door 230 is closed (see Figure 7A ); When the first trigger portion 25 is converted from the initial posture to the trigger posture, Figure 7A The first rotating shaft 233 shown in FIG can rotate clockwise and the second rotating shaft 234 can rotate counterclockwise, thereby opening the compartment door 230 (see FIG. Figure 7B ).

[0071] In addition, when the first trigger portion 25 is converted from the trigger state to the initial position, the first leaf 231 and the second leaf 232 rotate in opposite directions to close the door 230 (see FIG. FIG. 7B to FIG. 7A ). That is, when the first trigger portion 25 is converted from the trigger state to the initial posture, Figure 7B The first rotating shaft 233 is shown to be rotatable counterclockwise and the second rotating shaft 234 is shown to be rotatable clockwise to close the door 230 .

[0072] Figure 7A and Figure 7B The components that block the first trigger unit 25 are hidden in the figure, thereby illustrating the structure of the first trigger unit 25. Figure 7A and Figure 7BThe first triggering unit 25 may include an actuating member 251, and a first transmission member 252a and a second transmission member 252b (sometimes collectively referred to as "transmission members") respectively disposed at both ends of the actuating member 251. The first transmission member 252a may be linked to the first rotating shaft 233, and the second transmission member 252b may be linked to the second rotating shaft 234. The actuating member 251 may actuate the first rotating shaft 233 and the second rotating shaft 234 via the first transmission member 252a and the second transmission member 252b, thereby controlling the opening and closing of the first fan 231 and the second fan 232. In some examples, the first fan 231 and the second fan 232 may be disposed between the first rotating shaft 233 and the second rotating shaft 234.

[0073] In addition, in some examples, the first trigger portion 25 may further include a first restoring member 253a and a second restoring member 253b (sometimes collectively referred to as "restoring members"). The first restoring member 253a and the second restoring member 253b may provide a restoring function for restoring the first trigger portion 25 from the triggering position to the initial position. Figure 7A and Figure 7B In the illustrated embodiment, the actuating member 251 is pushed inward along the length direction of the base 21 so that the first trigger portion 25 is in a triggering posture and the compartment door 230 is opened. In this case, the first return member 253a and the second return member 253b provide a force to push the actuating member 251 outward along the length direction of the base 21. When the actuating member 251 is no longer subjected to external force, the force of the first return member 253a and the second return member 253b pushes the actuating member 251 outward so that the first trigger portion 25 returns to its initial posture, thereby closing the compartment door 230.

[0074] In some examples, the first return member 253a and the second return member 253b can be elastic components, such as springs. In some examples, the first return member 253a and the second return member 253b can be respectively arranged at both ends of the actuating member 251. In some examples, the first return member 253a and the second return member 253b can be arranged in a manner orthogonal to the actuating member 251. In addition, in some examples, the first return member 253a and the second return member 253b can be arranged in a manner parallel to the first transmission member 252a and the second transmission member 252b (see Figure 7A and Figure 7B ).

[0075] In some examples, the first transmission member 252a and the second transmission member 252b are configured to be displaceable along the length of the base 21, and the first rotation shaft 233 and the second rotation shaft 234 are configured to rotate along their respective axes. The first transmission member 252a and the first rotation shaft 233 are vertically offset, that is, the first transmission member 252a and the first rotation shaft 233 are arranged along non-overlapping vertical lines and are laterally connected therebetween.

[0076] Figure 7C The position indicated by point M in the figure is the position of the first transmission member 252a, the position indicated by point N is the position of the first rotating shaft 233, and the position indicated by point P is the position of the edge of the first fan 231. The MN segment and the NP segment form a lever structure with point N as the fulcrum. When point M is along Figure 7C If the displacement occurs in the direction indicated by D5, the MN segment and the NP segment will rotate clockwise around point N.

[0077] Combine Figure 7A and Figure 7C When the actuating member 251 actuates the first transmission member 252a to move inward along the length direction of the base 21, the first transmission member 252a is connected to the first rotating shaft 233 via the transverse connection (ie, Figure 7C MN segment shown in FIG) can drive the first fan 231 (ie, Figure 7C NP segment shown in FIG) around the first rotation axis 233 (ie, Figure 7C When the actuating member 251 actuates the first transmission member 252a to move outward along the length direction of the base 21, the first transmission member 252a is connected to the first rotating shaft 233 in a transverse direction (ie, Figure 7C MN segment shown in FIG) can drive the first fan 231 (ie, Figure 7C NP segment shown in FIG) around the first rotation axis 233 (ie, Figure 7C , rotate counterclockwise from the point N shown in FIG. 2 to close the compartment door 230.

[0078] Based on the same mechanism, the rotation process of the second fan 232 can be referred to the above description of the first fan 231 .

[0079] In some examples, the operation of opening the door 230 can be performed at the bottle feeding station. In addition, the transport mechanism 30 can be arranged at the bottle feeding station. When the door 230 is opened, the transport mechanism 30 can place the ampoule bottle into the transfer chamber 20.

[0080] Figure 8A 2 is a schematic diagram showing that the first triggering portion 25 according to the embodiment of the present disclosure moves to the front of the first guide mechanism 50 and is not triggered; Figure 8B2 is a schematic diagram showing that the first triggering portion 25 according to the embodiment of the present disclosure moves to the first guide mechanism 50 and is triggered; Figure 8C 1 is a schematic diagram showing that the first triggering portion 25 according to the example of the present disclosure is away from the first guide mechanism 50 and is not triggered.

[0081] In some examples, the liquid dispensing device 1 may further include a first guiding mechanism 50. In some examples, the first guiding mechanism 50 may be disposed near the bottle feeding station. The first guiding mechanism 50 may be configured to guide the first triggering portion 25 so that the first triggering portion 25 is in a triggering position.

[0082] In some examples, when the pipetting chamber 20 is located at the bottle feeding station, the pipetting chamber 20 can move toward the first guide mechanism 50 through relative movement between the support mechanism 10 and the first guide mechanism 50, and the first trigger part 25 can be triggered by the first guide mechanism 50 to open the chamber door 230.

[0083] In some examples, the first guide mechanism 50 can be arranged on the travel path of the first trigger portion 25. In some examples, the first guide mechanism 50 can be arranged on the travel path of the actuating member 251. In some examples, the first guide mechanism 50 can be arranged on the travel path of the actuating member 251 along the circumferential direction of the support mechanism 10.

[0084] In some examples, the first guide mechanism 50 may have a guide surface that gradually approaches the support mechanism 10, such as a surface inclined toward the support mechanism 10. When the actuating member 251 abuts against the guide surface of the first guide mechanism 50 and continues to move, the actuating member 251 is gradually pushed inward along the length direction of the base 21, thereby opening the compartment door 230.

[0085] In some examples, a drive mechanism 70 may also be provided at the bottle feeding station (see Figure 8A 、 Figure 8B and Figure 8C The drive mechanism 70 can be used to move the connecting rod 222 of the clamping portion 22. In some examples, the drive mechanism 70 can include a motor 71 and a toggle member 72 driven by the motor 71. When the connecting rod 222 of the clamping portion 22 is located at the bottle feeding station and near the drive mechanism 70, the motor 71 can drive the toggle member 72 to move the connecting rod 222, thereby opening the clamping arm 221 of the clamping portion 22.

[0086] In some examples, when the pipetting chamber 20 moves to the bottle feeding station, the first trigger portion 25 can be triggered by the first guide mechanism 50 to open the chamber door 230; then, the driving mechanism 70 can drive the connecting rod 222 of the clamping portion 22 to open the clamping arm 221 of the clamping portion 22; then, the transport mechanism 30 can place the first container 100 on the base 21; then, the clamping portion 22 clamps the first container 100; finally, when the pipetting chamber 20 moves away from the first guide mechanism 50 through the relative movement of the supporting mechanism 10 and the first guide mechanism 50, the first trigger portion 25 can return to an untriggered state to close the chamber door 230.

[0087] exist Figure 8A 、 Figure 8B and Figure 8C In the embodiment shown, the transfer chamber 20 can move as the support mechanism 10 rotates along the direction D1. When the actuating member 251 has not yet abutted against the first guide mechanism 50, the chamber door 230 is in a closed state (see Figure 8A ); When the actuating member 251 abuts against the guide surface of the first guide mechanism 50 and continues to move along the direction D1, the actuating member 251 is gradually pushed inward so that the compartment door 230 opens (see Figure 8B ), the toggle member 72 of the driving mechanism 70 toggles the connecting rod 222 of the clamping portion 22 to open the clamping arm 221 of the clamping portion 22 (see Figure 8B ), and the transport mechanism 30 can transport the ampoule bottle into the transfer chamber 20 (see Figure 8B ); When the actuating member 251 continues to move away from the first guide mechanism 50, the actuating member 251 returns to its initial position under the action of the return member to close the door 230. At this time, the ampoule bottle is clamped by the clamping portion 22 (see Figure 8C ).

[0088] In some examples, the liquid dispensing device 1 further includes a pipetting mechanism 40. The pipetting mechanism 40 is configured to control the syringe / pipette 300 to perform pipetting between the ampoule and the infusion bag. In some examples, the housing 23 may have an opening on a side opposite the base 21, and the pipetting mechanism 40 may control the syringe / pipette 300 to perform pipetting between the ampoule and the infusion bag through the opening of the housing 23.

[0089] In this embodiment, the syringe 300 may include a hollow cylindrical portion 301, a needle portion 302 extending along the length direction of the cylindrical portion 301, and a core portion 303 movably disposed in the cylindrical portion 301 (see Figure 2 ).

[0090] In some examples, the pipetting mechanism 40 may include a first gripping portion 41 configured to grip the cylindrical portion 301, a second gripping portion 42 configured to grip the core portion 303, and a gripping portion 43 configured to move in an up-down direction (ie, Figure 2 In the illustrated embodiment, a first movable portion 43 is provided that is movable in the direction indicated by D3 or D4 and is linked to the first gripping portion 41, and a second movable portion 44 is provided that is movable in the up-down direction and is linked to the second gripping portion 42.

[0091] In addition, in some examples, the pipetting mechanism 40 can be arranged above the supporting mechanism 10. The pipetting mechanism 40 is configured to be movable leftward and rightward relative to the pipetting chamber 20.

[0092] When the chamber door 230 is closed and the pipetting chamber 20 is in the pipetting position, the pipetting mechanism 40 controls the syringe-aspirator 300 to perform pipetting between the ampoule bottle and the infusion bag through the opening of the cover shell 23 .

[0093] For example, to transfer the liquid medicine in the ampoule bottle to the infusion bag, first, the pipetting mechanism 40 can be moved in the left and right directions to align the syringe 300 with the opening of the cover 23, and the first movable part 43 can drive the cylindrical part 301 to move downward to allow the needle part 302 to enter the ampoule bottle; then, the second movable part 44 can drive the core part 303 to move upward to absorb the liquid medicine in the ampoule bottle; then, the first movable part 43 can drive the cylindrical part 301 to move upward to allow the needle part 302 to enter the ampoule bottle; The needle-shaped portion 302 leaves the opening of the cover shell 23, and the pipetting mechanism 40 can move in the left and right directions to align the needle-shaped portion 302 with the infusion bag, and the first movable portion 43 can drive the cylindrical portion 301 to move downward to allow the needle-shaped portion 302 to enter the infusion bag; then, the second movable portion 44 can drive the core portion 303 to move downward to inject the drug solution into the infusion bag; finally, the first movable portion 43 can drive the cylindrical portion 301 to move upward to allow the needle-shaped portion 302 to leave the infusion bag.

[0094] Additionally, in some examples, the base 21 may have a notch. The notch in the base 21 may connect the top and bottom of the base 21. In some examples, the supporting portion 24 may be disposed above the base 21 and configured to move along the notch in the base 21. When the supporting portion 24 moves to the notch in the base 21, the notch in the base 21 may be obscured by the supporting portion 24, i.e., the notch no longer connects the top and bottom of the base 21. When the supporting portion 24 moves away from the notch in the base 21, the notch in the base 21 may be opened, i.e., the notch connects the top and bottom of the base 21.

[0095] In some examples, the supporting portion 24 is configured to move along the length of the base 21 to open or cover the notch of the base 21. In some examples, when the notch is open, the clamping portion 22 can release the ampoule to allow the ampoule to fall through the notch, thereby facilitating the discharge of the ampoule from the pipetting chamber 20.

[0096] Figure 9 2 is a schematic structural diagram showing the supporting portion 24 involved in the example of the present disclosure.

[0097] In some examples, a first slide rail (not shown) and a second slide rail (not shown) are arranged side by side on both sides of the notch of the base 21. The supporting portion 24 may include a first sliding member 241 and a second sliding member 242 arranged side by side, and a tray 243 located between the first sliding member 241 and the second sliding member 242 (see Figure 9 The first sliding member 241 and the second sliding member 242 can slide along the first slide rail and the second slide rail of the base 21 respectively, so that the tray 243 covers the notch of the base 21 or moves away from above the notch.

[0098] In addition, in some examples, the carrier 24 may further include a collection dish 244 disposed adjacent to the tray 243. The collection dish 244 may be used to collect liquid medicine splashed from the ampoule. In some examples, the surface of the tray 243 may have a recess extending to the collection dish 244, which may be used to guide the splashed liquid medicine to flow toward the collection dish 244 (see FIG. Figure 9 ).

[0099] In addition, in some examples, the transfer chamber 20 further includes a second triggering portion 26 linked to the carrying portion 24 (see Figure 5B The second triggering portion 26 can trigger the carrying portion 24 to move so that the gap of the base 21 is opened.

[0100] In addition, in some examples, the second trigger portion 26 can have an initial position and a trigger position. When the second trigger portion 26 is in the initial position, the notch is covered by the tray 243. When the second trigger portion 26 switches from the initial position to the trigger position, the first sliding member 241 and the second sliding member 242 can slide along the first and second slide rails to move the tray 243 away from above the notch, thereby opening the notch.

[0101] Figure 10A is a schematic diagram showing a first viewing angle when the second triggering portion 26 according to an example of the present disclosure moves to the front of the second guiding mechanism 60 and is not triggered; Figure 10B is a schematic diagram showing a second viewing angle when the second triggering portion 26 according to the example of the present disclosure moves to the second guide mechanism 60 and is not triggered; Figure 10Cis a schematic diagram showing a first viewing angle when the second triggering portion 26 involved in the example of the present disclosure moves to the second guide mechanism 60 and is triggered; Figure 10D is a schematic diagram showing a second viewing angle when the second triggering portion 26 involved in the example of the present disclosure moves to the second guide mechanism 60 and is triggered; Figure 10E is a schematic diagram showing a first viewing angle when the second triggering portion 26 involved in the example of the present disclosure is away from the second guiding mechanism 60 and is not triggered;

[0102] Figure 10F : is a schematic diagram showing a second viewing angle when the second triggering portion 26 of the present disclosure example is away from the second guide mechanism 60 and is not triggered. 10A to 10F In the illustrated embodiment, the first viewing angle may be understood as an upward viewing angle, and the second viewing angle may be understood as a downward viewing angle.

[0103] In some examples, the second triggering portion 26 may include a pulling member 261, a connecting member 262 for connecting the pulling member 261 and the tray 243, and a first return member 263a and a second return member 263b (sometimes collectively referred to as "return members") that are linked to the tray 243 (see Figure 10A and Figure 10B The pulling member 261 can pull the tray 243 away from above the notch via the connecting member 262, and the first return member 263a and the second return member 263b can provide a return function to return the second trigger portion 26 from the triggering posture to the initial posture, thereby returning the tray 243 to above the notch.

[0104] In some examples, the first return member 263a and the second return member 263b may be disposed substantially along the extending direction of the first slider 241 and the second slider 242 (see FIG. Figure 10B In some examples, one end of the first return member 263a can be connected to the base 21, and the other end of the first return member 263a can be connected to the tray 243. In some examples, the first return member 263a and the second return member 263b can be tension springs.

[0105] When the door 230 is closed and the transfer chamber 20 is located at the bottle discharge station, the second trigger portion 26 can be converted from the initial posture to the trigger posture, so that the tray 243 is moved away from above the gap, thereby opening the gap; and the clamping portion 22 can release the ampoule bottle so that the ampoule bottle falls through the gap.

[0106] In some examples, the liquid dispensing device 1 may include a second guiding mechanism 60 (see 10A to 10F The second guiding mechanism 60 may be arranged near the bottle discharge station. The second guiding mechanism 60 may be configured to guide the second triggering portion 26 so that the second triggering portion 26 is in a triggering posture.

[0107] In some examples, the second guide mechanism 60 can be arranged on the travel path of the second triggering portion 26 to guide the second triggering portion 26. In some examples, the second guide mechanism 60 can be arranged on the travel path of the traction member 261. In some examples, the second guide mechanism 60 can be arranged on the travel path of the traction member 261 along the circumferential direction of the support mechanism 10.

[0108] In some examples, when the chamber door 230 is closed and the pipetting chamber 20 moves to the bottle ejection position as the support mechanism 10 rotates, the second triggering portion 26 can be triggered by the second guide mechanism 60 to move the tray 243 away from above the notch of the base 21. The clamping portion 22 can then release the ampoule, allowing the ampoule to fall through the notch of the base 21. As the second triggering portion 26 moves away from the second guide mechanism 60, the tray 243 can be returned to above the notch of the base 21 under the action of the first return member 263a and the second return member 263b.

[0109] exist Figure 10A 、 Figure 10B 、 Figure 10C 、 Figure 10D 、 Figure 10E and Figure 10F In the embodiment shown, the transfer chamber 20 can move along the rotation of the support mechanism 10 along the direction D1. When the traction member 261 has not yet abutted against the second guide mechanism 60, the tray 243 covers the gap of the base 21 (see Figure 10A and Figure 10B ); When the traction member 261 abuts against the second guide mechanism 60 and continues to move along the direction D1, the traction member 261 is gradually pulled in the direction away from the clamping portion 22 so that the tray 243 is moved away from the top of the notch of the base 21 (see Figure 10C and Figure 10D ), and the clamping portion 22 opens to allow the ampoule to fall through the notch of the base 21 (see Figure 10C and Figure 10D ); When the traction member 261 continues to move away from the second guide mechanism 60, the tray 243 returns to its initial position under the action of the return member so that the tray 243 covers the gap of the base 21, and at this time the clamping portion 22 can be in a tightened state (see Figure 10E and Figure 10F ).

[0110] Although the present disclosure has been described in detail above with reference to the accompanying drawings and examples, it will be understood that the above description does not limit the present disclosure in any form. Those skilled in the art may modify and change the present disclosure as needed without departing from the spirit and scope of the present disclosure, and such modifications and variations all fall within the scope of the present disclosure.

Claims

1. A liquid dispensing device with a liquid transfer chamber, which is used to mix a solution contained in a first container and a solution contained in a second container through a syringe, and the liquid dispensing device has a bottle feeding station, a liquid transfer station, and a bottle discharge station, and is characterized in that: The liquid dispensing device comprises a supporting mechanism, a transfer chamber, a conveying mechanism, a transfer mechanism, a first guiding mechanism and a second guiding mechanism, the supporting mechanism comprising a first supporting portion and a second supporting portion adjacent to each other, the first supporting portion being configured to support the transfer chamber, the second supporting portion being configured to support the second container, and the supporting mechanism being configured to be movable relative to the first guiding mechanism and the second guiding mechanism, the transfer chamber comprising a base configured to be assembled on the first supporting portion and having a notch communicating up and down, a carrying portion mounted on the base and movable along the notch and used to carry the first container, a clamping portion mounted on the base and releasably clamping the first container, a cover shell provided on the base and having a chamber door, a first triggering portion linked to the chamber door, and a second triggering portion linked to the carrying portion, the cover shell having an opening on a side opposite to the base, the transfer mechanism being configured to hold the syringe, and when the transfer chamber is located at the bottle feeding station, the transfer chamber is connected to the first guide mechanism through the supporting mechanism. The container is moved toward the first guide mechanism by the relative movement of the supporting mechanism and the first guide mechanism, the first trigger part is triggered by the first guide mechanism to open the compartment door, the transport mechanism places the first container on the carrying part, and the clamping part clamps the first container, when the pipetting compartment moves away from the first guide mechanism through the relative movement of the supporting mechanism and the first guide mechanism, and the first trigger part returns to an untriggered state to close the compartment door, when the compartment door is closed and the pipetting compartment is located at the pipetting station, the pipetting mechanism controls the syringe to perform pipetting between the first container and the second container through the opening, when the compartment door is closed and the pipetting compartment is located at the bottle discharge station, the pipetting compartment moves toward the second guide mechanism through the relative movement of the supporting mechanism and the second guide mechanism, the second trigger part is triggered by the second guide mechanism to move the carrying part relative to the notch to open the notch, and the clamping part releases the first container to allow the first container to fall through the notch.

2. The liquid dispensing device according to claim 1, characterized in that: The support mechanism is disc-shaped and configured to rotate in the left and right directions. The first support portion and the second support portion are arranged on the outer periphery of the support mechanism, and the first guide mechanism is arranged on the travel path of the first trigger portion along the circumferential direction of the support mechanism, and the second guide mechanism is arranged on the travel path of the second trigger portion along the circumferential direction of the support mechanism.

3. The liquid dispensing device according to claim 1, characterized in that: The warehouse door includes a first fan and a second fan standing side by side in the up and down direction, and a first rotating shaft and a second rotating shaft respectively arranged on the left and right sides of the first fan and the second fan. The first fan is linked with the first rotating shaft and is configured to rotate around the first rotating shaft in the left and right directions. The second fan is linked with the second rotating shaft and is configured to rotate around the second rotating shaft in the left and right directions.

4. The liquid dispensing device according to claim 3, characterized in that: The first trigger part has an initial posture and a trigger posture. When the first trigger part is converted from the initial posture to the trigger posture, the first fan and the second fan rotate in opposite directions to open the warehouse door. When the first trigger part is converted from the trigger state to the initial posture, the first fan and the second fan rotate in opposite directions to close the warehouse door.

5. The liquid dispensing device according to claim 4, characterized in that: The first trigger part includes an actuating member configured to be guided by the first guide mechanism, a transmission member connected to the actuating member and linked with the first rotating shaft and the second rotating shaft, and a restoring member linked with the actuating member, the restoring member being configured to provide a restoring effect for restoring the first trigger part from a trigger posture to an initial posture.

6. The liquid dispensing device according to claim 1, characterized in that: The base includes a first slide rail and a second slide rail arranged side by side on the left and right sides of the gap, the supporting portion includes a first sliding member and a second sliding member configured to be slidably connected to the first slide rail and the second slide rail respectively, and a tray arranged between the first sliding member and the second sliding member, the first sliding member and the second sliding member slide along the first slide rail and the second slide rail so that the tray covers the gap or leaves the gap open.

7. The liquid dispensing device according to claim 6, characterized in that: The second trigger portion has an initial posture and a trigger posture. When the second trigger portion is in the initial posture, the gap is covered by the tray. When the second trigger portion is in the trigger posture, the tray moves with the sliding of the first slide rail and the second slide rail to open the gap.

8. The liquid dispensing device according to claim 7, characterized in that: The second trigger portion includes a traction member configured to be guided by the second guide mechanism, a connecting member for connecting the traction member and the tray, and a return member arranged along the extension direction of the first sliding member and the second sliding member and linked to the tray, the return member being configured to provide a return function for returning the second trigger portion from a trigger posture to an initial posture.

9. The liquid dispensing device according to claim 1, characterized in that: The clamping portion includes a clamping arm and a connecting rod linked to the clamping arm. The liquid dispensing device includes a driving mechanism, and the driving mechanism drives the connecting rod to open the clamping arm.

10. The liquid dispensing device according to claim 1, characterized in that: The first supporting portion is U-shaped, the base is tongue-shaped matching the first supporting portion, and the base can move from the opening of the first supporting portion toward the closed portion of the first supporting portion to engage with the first supporting portion.

Images