Liquid filling device

Abstract

The utility model discloses a liquid filling device, which relates to the technical field of medical instruments, and comprises a support assembly, a liquid outlet assembly, a test tube rack and a rotating assembly, the liquid outlet assembly comprises a liquid storage bottle and a quantitative control assembly, the liquid storage bottle is arranged on the support assembly and is used for containing a certain amount of liquid, and a liquid outlet of the liquid storage bottle is communicated with a liquid outlet pipeline; the quantitative control assembly is arranged on the liquid outlet pipeline and used for controlling the liquid storage bottle to conduct quantitative liquid outlet. The test tube rack is provided with a plurality of test tube grooves used for containing test tubes, and the rotating assembly is arranged on the support assembly and used for driving the test tube rack to rotate, so that the test tubes in the test tube grooves in the test tube rack can sequentially rotate to the liquid outlet positions corresponding to the liquid outlets of the liquid outlet pipelines, and liquid filling is conducted. The liquid filling device disclosed by the utility model can automatically carry out quantitative liquid filling on a plurality of test tubes, is convenient and reliable to operate, and can meet the filling requirements of medical personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a liquid filling device. Background Art

[0002] Medical liquids are mostly corrosive, and the amount of liquid used by medical staff each time is basically different in different situations. Some liquids only need a few milliliters at a time. Therefore, accurate filling of liquids is crucial to reduce waste and pollution, while also protecting the health of medical staff. Therefore, how to provide a device that can automatically fill a certain amount of liquid into multiple test tubes to meet the filling needs of medical staff is a technical problem that needs to be solved urgently by technical personnel. Utility Model Content

[0003] In view of this, the utility model provides a liquid filling device, which is used to automatically fill a plurality of test tubes with quantitative liquid to meet the filling needs of medical staff.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A liquid filling device, comprising:

[0006] Bracket assembly;

[0007] A liquid outlet assembly, comprising a liquid storage bottle and a quantitative control assembly, wherein the liquid storage bottle is arranged on the support assembly, and a liquid outlet pipe is connected to the liquid outlet of the liquid storage bottle, and the quantitative control assembly is arranged on the liquid outlet pipe for controlling the quantitative liquid outlet of the liquid storage bottle;

[0008] A test tube rack, provided with a plurality of test tube slots for placing test tubes;

[0009] The rotating assembly is arranged on the support assembly and is used to drive each test tube slot on the test tube rack to rotate in sequence to a liquid outlet position corresponding to the liquid outlet of the liquid outlet pipeline.

[0010] Optionally, in the above-mentioned liquid filling device, the rotating assembly includes:

[0011] A rotating table, rotatably disposed on the support assembly and provided with a containing slot for containing the test tube rack;

[0012] The rotary motor is arranged on the support assembly and is in driving connection with the rotating table to drive the rotating table to drive the test tube rack to rotate.

[0013] Optionally, in the above-mentioned liquid filling device, a detection sensor is provided on the bracket assembly, and the detection sensor is arranged toward the liquid outlet position to detect whether there is a test tube at the liquid outlet position.

[0014] Optionally, in the above-mentioned liquid filling device, a reference component used as a detection reference of the detection sensor is provided on the rotating table;

[0015] The test tube rack is provided with a reference hole for embedding the reference component, the test tube slots are arranged circumferentially around the reference hole, and the side walls of the test tube slots are provided with detection windows for the detection aperture of the detection sensor to pass through and reach the reference component.

[0016] Optionally, in the above-mentioned liquid filling device, the test tube rack is provided with an avoidance portion, and along the circumference of the test tube rack, the test tube slots are arranged at intervals, and the avoidance portion is provided between two test tube slots;

[0017] When the liquid filling device is in an initial state, the avoidance portion is in the liquid outlet position, and the detection aperture of the detection sensor passes through the avoidance portion and directly irradiates the reference component.

[0018] Optionally, in the above-mentioned liquid filling device, the rotation angle of the rotary motor is controlled by an angle encoder.

[0019] Optionally, in the above-mentioned liquid filling device, the support assembly includes:

[0020] A support frame, the liquid storage bottle is arranged on the top of the support frame, the rotating assembly is arranged on the bottom of the support frame, a filling space is arranged on the support frame, and the liquid outlet position is arranged in the filling space;

[0021] A protective cover is rotatably disposed on the support frame and is used to close the filling space.

[0022] Optionally, in the above-mentioned liquid filling device, the bracket assembly further comprises a baffle, which is rotatably disposed on the supporting frame and is used to protect the connection portion between the liquid storage bottle and the quantitative control assembly.

[0023] Optionally, in the above-mentioned liquid filling device, the quantitative control component includes:

[0024] A flow meter, connected to the liquid outlet of the liquid outlet pipeline, for measuring the liquid flow in the liquid outlet pipeline;

[0025] The solenoid valve is connected and arranged at the outlet of the flow meter, and is used to control the connection and cutoff of the liquid outlet pipeline. The outlet of the solenoid valve is connected and arranged with a nozzle for liquid outlet, and the liquid outlet position is opposite to the liquid outlet of the nozzle.

[0026] Optionally, in the above-mentioned liquid filling device, the quantitative control component further comprises a manual control valve, which is connected between the liquid storage bottle and the liquid outlet pipeline and is used for medical staff to manually control the connection and cutoff of the liquid outlet pipeline; and / or,

[0027] The solenoid valve is arranged on the bracket assembly through a fixing frame.

[0028] The liquid filling device provided by the utility model comprises a support assembly, a liquid outlet assembly, a test tube rack and a rotating assembly. The liquid outlet assembly comprises a liquid storage bottle and a quantitative control assembly. The liquid storage bottle is arranged on the support assembly and is used for holding a certain amount of liquid. The liquid outlet of the liquid storage bottle is connected to a liquid outlet pipeline. The quantitative control assembly is arranged on the liquid outlet pipeline and is used for controlling the liquid storage bottle to quantitatively discharge liquid. The test tube rack is provided with a plurality of test tube slots for placing test tubes. The rotating assembly is arranged on the support assembly and is used for driving the test tube rack to rotate, so that each test tube slot on the test tube rack can be rotated in turn to a liquid outlet position corresponding to the liquid outlet of the liquid outlet pipeline, that is, the test tubes in each test tube slot can be rotated in turn to a liquid outlet position corresponding to the liquid outlet of the liquid outlet pipeline, so as to perform liquid filling.

[0029] In actual use, first fill the liquid you want to fill in the liquid storage bottle, then place the test tubes that need to be filled with liquid in each test tube slot of the test tube rack one by one, and then place the test tube rack and the test tubes together on the rotating component to complete the preparation work. Start the liquid filling device, the rotating component drives the test tube rack to rotate so that the first test tube rotates to the liquid outlet position and then stops. At the same time, the liquid outlet component controls the liquid storage bottle to flow a preset amount of liquid to the liquid outlet position. After the first test tube is filled, the liquid outlet component stops discharging liquid, and the rotating component drives the test tube rack to continue rotating, and moves the next test tube to the liquid outlet position for liquid filling. Repeat the above process until the preset number of test tubes or all the test tubes on the test tube rack are filled. After the filling is completed, medical staff can directly remove the test tube rack together with the test tubes from the liquid filling device for subsequent operations.

[0030] Compared with the prior art, the liquid filling device provided by the utility model can automatically perform quantitative liquid filling of multiple test tubes, is easy and reliable to operate, and can meet the filling needs of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 The overall structure of the liquid filling device disclosed in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0033] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0034] Figure 3 for Figure 2 A partial enlarged view of the liquid outlet of the middle liquid storage bottle;

[0035] Figure 4 for Figure 2 A partial enlarged view of the middle rotating component;

[0036] Figure 5 The overall structure of the liquid filling device disclosed in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0037] Figure 6 The overall structure of the liquid filling device disclosed in the embodiment of the utility model is shown in FIG. Figure 3 ;

[0038] Figure 7 The internal structure of the liquid filling device disclosed in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0039] Figure 8 The internal structure of the liquid filling device disclosed in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0040] Fig. 9 The internal structure of the liquid filling device disclosed in the embodiment of the utility model is shown in FIG. Figure 3 ;

[0041] Fig.10 It is a structural schematic diagram of the liquid filling device disclosed in the embodiment of the utility model in an initial state;

[0042] Fig.11 It is a structural schematic diagram of the liquid filling device disclosed in the embodiment of the utility model in a filling state;

[0043] Fig.12 The structure diagram of the detection sensor disclosed in the embodiment of the utility model when detecting the test tube Figure 1 ;

[0044] Fig.13 The structure diagram of the detection sensor disclosed in the embodiment of the utility model when detecting the test tube Figure 2 ;

[0045] Fig.14The structure of the rotating platform disclosed in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0046] Fig.15 The structure of the rotating platform disclosed in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0047] Fig.16 The structure of the rotating platform disclosed in the embodiment of the utility model is shown in FIG. Figure 3 ;

[0048] Fig.17 The structure of the test tube rack disclosed in the embodiment of the utility model is schematically shown in FIG. Figure 1 ;

[0049] Fig.18 The structure of the test tube rack disclosed in the embodiment of the utility model is schematically shown in FIG. Figure 2 ;

[0050] Fig.19 The structure of the test tube rack disclosed in the embodiment of the utility model is schematically shown in FIG. Figure 3 .

[0051] Among them, 100 is a bracket assembly, 110 is a supporting frame, 111 is a fixing frame, 120 is a protective cover, 130 is a baffle, 131 is a second hinge, and 132 is a second bead assembly;

[0052] 200 is a liquid outlet assembly, 210 is a liquid storage bottle, 211 is an air inlet valve, 220 is a first connecting nut, 221 is a first sealing gasket, 222 is a manual control valve, 223 is a second sealing gasket, 224 is a second connecting nut, 225 is a hose connector, 226 is a silicone hose, 227 is a flow meter, 228 is a solenoid valve, 229 is a filling nozzle, 230 is a detection sensor, and 231 is a detection aperture;

[0053] 300 is a test tube rack, 301 is a handle, 302 is a test tube slot, 303 is a detection window, and 304 is an avoidance portion;

[0054] 400 is a rotating assembly, 410 is a rotating motor, 420 is a rotating table, 421 is a reference component, 422 is a calibration part, and 423 is a containing tank;

[0055] 500 for test tubes. DETAILED DESCRIPTION

[0056] The utility model discloses a liquid filling device, which is used for automatically filling quantitative liquid into a plurality of test tubes to meet the filling needs of medical staff.

[0057] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0058] Combination Figure 1-Figure 19 The liquid filling device disclosed in the embodiment of the utility model includes a support assembly 100, a liquid outlet assembly 200, a test tube rack 300 and a rotating assembly 400. The liquid outlet assembly 200 includes a liquid storage bottle 210 and a quantitative control assembly. The liquid storage bottle 210 is arranged on the support assembly 100 and is used to hold a certain amount of liquid. The liquid outlet of the liquid storage bottle 210 is connected to a liquid outlet pipeline. The quantitative control assembly is arranged on the liquid outlet pipeline and is used to control the liquid storage bottle 210 to quantitatively discharge liquid. The test tube rack 300 is provided with a plurality of test tube slots 302 for placing test tubes 500. The rotating assembly 400 is arranged on the support assembly 100 and is used to drive the test tube rack 300 to rotate, so that each test tube slot 302 on the test tube rack 300 can be rotated in turn to a liquid outlet position corresponding to the liquid outlet of the liquid outlet pipeline, that is, the test tubes 500 in each test tube slot 302 can be rotated in turn to the liquid outlet position corresponding to the liquid outlet of the liquid outlet pipeline, so as to fill the liquid.

[0059] In actual use, the liquid to be filled is first placed in the liquid storage bottle 210, and the type of the liquid is not limited to liquid medicine, pure water, etc. Then the test tubes 500 that need to be filled with liquid are placed one by one in each test tube slot 302 of the test tube rack 300, and then the test tube rack 300 and the test tubes 500 are placed together on the rotating assembly 400 to complete the preparation work. The liquid filling device is started, and the rotating assembly 400 drives the test tube rack 300 to rotate so that the first test tube 500 rotates to the liquid outlet position and then stops. At the same time, the liquid outlet assembly 200 controls the liquid storage bottle 210 to flow a preset amount of liquid to the liquid outlet position. After the first test tube 500 is filled, the liquid outlet assembly 200 stops discharging liquid, and the rotating assembly 400 drives the test tube rack 300 to continue rotating, and moves the next test tube 500 to the liquid outlet position for liquid filling. Repeat the above process until the preset number of test tubes 500 or all the test tubes 500 on the test tube rack 300 are filled. After the filling is completed, the medical staff can directly remove the test tube rack 300 together with the test tube 500 from the liquid filling device to carry out subsequent operations.

[0060] Compared with the prior art, the liquid filling device disclosed in the utility model can automatically perform quantitative liquid filling of multiple test tubes 500, is easy and reliable to operate, and can meet the filling needs of medical staff.

[0061] In some embodiments, the rotating assembly 400 includes a rotating table 420 and a rotating motor 410. The rotating table 420 is rotatably disposed on the support assembly 100 and is provided with a holding slot 423 for holding the test tube rack 300. The rotating motor 410 is disposed on the support assembly 100 and is transmission-connected to the rotating table 420, and is used to drive the rotating table 420 to drive the test tube rack 300 to rotate, so that each test tube slot 302 rotates to the liquid discharge position in sequence during filling.

[0062] The specific layout structure of the rotating assembly 400 can be adjusted according to the actual situation, and it is only necessary to ensure that the rotating platform 420 can drive the test tube rack 300 to rotate. Figure 2 and Figure 4 In the above embodiment, the rotating table 420 is arranged on the top of the rotating motor 410, and a three-dimensional spatial layout is adopted in which the rotating table 420 is directly connected to the power output shaft of the rotating motor 410, that is, the rotation axis of the rotating table 420 is coaxially arranged with the power output shaft of the rotating motor 410; in other embodiments, the rotation axis of the rotating table 420 is parallel to the power output shaft of the rotating motor 410 and is staggered, and the two are transmitted through a gear structure to realize a planar spatial layout.

[0063] Furthermore, in order to achieve safe perfusion of liquid and avoid direct perfusion of liquid into the test tube rack 300 or the rotating table 420 when no test tube 500 is placed in some test tube slots 302, a detection sensor 230 is provided on the support assembly 100. The detection sensor 230 is arranged toward the liquid outlet position and is used to detect whether there is a test tube 500 at the liquid outlet position, so as to judge whether the liquid outlet assembly 200 currently needs to discharge liquid. The detection sensor 230 can be a distance sensor, an image sensor, a photoelectric sensor, etc. The detection sensor 230 can be specifically arranged above the rotating table 420 to directly detect whether the test tube 500 is in place from the top position of the test tube rack 300. At this time, the detection path of the detection sensor 230 is perpendicular to the rotation plane of the test tube rack 300.

[0064] According to the specific detection principle of the detection sensor 230 , corresponding structures can be provided on the rotating table 420 and the test tube rack 300 to facilitate the detection by the detection sensor 230 .

[0065] In some embodiments, in combination Fig.12 and Fig.13 The detection sensor 230 is an image sensor, and its detection path is parallel to the rotation plane of the test tube rack 300. A detection window 303 is opened on the side wall of each test tube slot 302, and each detection window 303 is arranged on the outer peripheral wall of the test tube rack 300. The detection sensor 230 can detect whether there is a test tube 500 at the liquid position at the detection window.

[0066] In some embodiments, the detection sensor 230 is a photoelectric sensor, and its detection principle is to first detect the light reflection amount of the background reference, and then detect the light reflection amount after the object to be detected is added, and calculate the difference between the two to determine whether the object to be detected exists.

[0067] Specifically, combined Fig.13 A reference component 421 serving as a detection reference for the photoelectric sensor is disposed on the rotating table 420. The reference component 421 may be a circular base column, and a position on the circular base column corresponding to the photoelectric sensor is uniformly painted black to serve as a calibration portion 422 (the calibration portion 422 is disposed circumferentially around the reference component 421). A reference hole for embedding the reference component 421 is provided in the middle position of the test tube rack 300, and each test tube slot 302 is circumferentially arranged around the reference hole, and a detection window 303 is provided on the side wall of each test tube slot 302. The detection window 303 is arranged so that when there is no test tube 500 at the liquid outlet position, the detection aperture 231 of the photoelectric sensor can pass through the test tube slot 302 through the detection window 303 to reach the calibration part 422 and obtain a first light reflection amount; when there is a test tube 500 at the liquid outlet position, the detection aperture 231 of the photoelectric sensor can pass through the detection window 303 and the test tube 500 to reach the calibration part 422 and obtain a second light reflection amount, and whether there is a test tube 500 at the liquid outlet position is determined by the numerical difference between the first light reflection amount and the second light reflection amount.

[0068] Furthermore, combined with Fig.17 The test tube rack 300 is provided with an avoidance portion 304. Along the circumference of the test tube rack 300, each test tube slot 302 is arranged at intervals, and the avoidance portion 304 is arranged between two test tube slots 302. At the avoidance portion 304, the reference hole is connected to the outside. Fig.10 and Fig.13 When the liquid filling device is in the initial state, the avoidance portion 304 is in the liquid discharge position, and each test tube slot 302 is not in the liquid discharge position. At this time, the detection aperture 231 of the photoelectric sensor can directly illuminate the calibration portion 422 of the reference component 421 from the avoidance portion 304, and at the same time, the photoelectric sensor detects the first light reflection amount, and the liquid discharge component 200 remains in the liquid-free state; when the rotating motor 410 controls the rotating table 420 to rotate one circle to complete the liquid filling of all the test tubes 500 on the test tube rack 300, the avoidance portion 304 returns to the liquid discharge position, and at this time, the rotating motor 410 automatically stops, and at the same time, the photoelectric sensor detects the first light reflection amount, and the liquid discharge component 200 remains in the liquid-free state.

[0069] Combination Fig.10 and Fig.11By setting the avoidance portion 304, the test tube rack 300 has a non-rotationally symmetrical structure. At the same time, the shape of the containing groove 423 matches the bottom shape of the test tube rack 300. The avoidance portion 304 can be used as a mark to identify the rotation position of the rotating table 420, which is convenient for medical staff to judge the liquid filling progress of each test tube 500.

[0070] Exemplary, combined Fig.17 and Fig.19 Six test tube slots 302 are evenly spaced around the test tube rack 300 , the central angle α between the midlines of two adjacent test tube slots 302 is 45°, and the corresponding central angle 2β between the midlines of two test tube slots 302 on both sides of the avoidance portion 304 is 135°.

[0071] The test tube slots 302 are evenly arranged, and an angle encoder with an absolute value is provided inside the rotating motor 410 so that the angle of rotation can be controlled by the angle encoder.

[0072] Combination Fig.18 In order to facilitate medical staff to take the test tube, a handle 301 is fixedly installed above the test tube rack 300.

[0073] In a specific embodiment disclosed in the present utility model, the bracket assembly 100 includes a supporting frame 110 and a protective cover 120, the liquid storage bottle 210 is arranged on the top of the supporting frame 110, the rotating assembly 400 is arranged on the bottom of the supporting frame 110, a filling space is arranged on the supporting frame 110, the liquid outlet position is in the filling space, the test tube 500 is used to receive the liquid in the filling space, and the protective cover 120 is rotatably arranged on the supporting frame 110 for closing the filling space.

[0074] Combination Figure 5 The protective cover 120 is hingedly arranged on the support frame 110 and can be manually controlled to rotate. During the filling process, the protective cover 120 can be closed to prevent the smell of some liquids from being emitted to the external environment. The protective cover 120 is preferably made of transparent material to facilitate medical staff to observe the filling process from the outside.

[0075] The support frame 110 can be made of plastic plates or metal plates spliced ​​together to form a desired structure. Figure 5 and Figure 6 , it is defined that the filling space is located in the front part of the support frame 110, then correspondingly, the protective cover 120 can also be rotatably arranged in the front part of the support frame 110, and the first side of the protective cover 120 can be hinged to the support frame 110 through a first hinge (not shown), and the second side is fixed to the support frame 110 through a first bead assembly or other connecting structure, so as to connect the protective cover 120 and the support frame 110 when the filling space is closed.

[0076] Taking the example of the protective cover 120 being connected to the support frame 110 through the first bead assembly, the bead seat of the first bead assembly is arranged on the support frame 110, and the bead is arranged at the second side edge position of the protective cover 120. When the protective cover 120 is closed, the bead is embedded in the bead seat to fix the position of the protective cover 120 and the support frame 110. The protective cover 120 can be opened by pulling the protective cover 120 to make the bead come out of the bead seat, which is convenient for opening and closing.

[0077] Furthermore, a sealing strip may be provided at a closed position where the protective cover 120 and the supporting frame 110 are used to contact each other, so as to enhance the sealing effect.

[0078] Combination Figure 5 and Figure 7 A baffle 130 is rotatably provided at the rear of the support frame 110. The baffle 130 is used to protect and hide the connection position between the liquid storage bottle 210 and the quantitative control component in the liquid outlet component 200. After opening the baffle 130, medical staff can disassemble the liquid storage bottle 210 and the quantitative control component, thereby replacing and cleaning the liquid storage bottle 210.

[0079] Specifically, the first side of the baffle 130 is hinged to the support frame 110 through the second hinge 131, and the second side is fixed to the support frame 110 through the second ball assembly 132. The opening and closing fixing method of the baffle 130 relative to the support frame 110 is the same as the opening and closing fixing method of the protective cover 120 relative to the support frame 110, which will not be repeated here.

[0080] The liquid storage bottle 210 is arranged at the top of the support frame 110 to facilitate liquid discharge. The specific shape of the liquid storage bottle 210 is not limited. In addition, an air inlet valve 211 is arranged on the liquid storage bottle 210 to ensure the air pressure balance in the liquid storage bottle 210 and ensure that the liquid can fall smoothly.

[0081] In order to achieve quantitative control of liquid filling, combined with Figure 2 , Figure 3 and Figure 7 The quantitative control component includes an electromagnetic valve 228 and a flow meter 227. The electromagnetic valve 228 is arranged on the liquid outlet pipeline and is used to control the connection and cutoff of the liquid outlet pipeline. The flow meter 227 is arranged on the liquid outlet pipeline and is used to measure the liquid output in the liquid outlet pipeline, thereby realizing precise control of the amount of perfusion liquid.

[0082] The electromagnetic valve 228 is linked with the flow meter 227 for controlling the liquid flow rate by the flow meter 227, thereby controlling the switch of the electromagnetic valve 228 to achieve quantitative control of the liquid output. In the liquid output direction along the liquid output pipeline, the electromagnetic valve 228 can be set at the upstream position or downstream position of the flow meter 227.

[0083] The solenoid valve 228 is used to realize automatic control of liquid outflow. Furthermore, the quantitative control component also includes a manual control valve for manually controlling the connection and cutoff of the liquid outflow pipeline. The manual control valve is arranged on the liquid outflow pipeline.

[0084] In one embodiment, in combination Figure 2 and Figure 3 The top of the liquid storage bottle 210 is provided with a bottle cap, the bottom is provided with a liquid outlet, and an air inlet valve 211 is installed at the bottle cap, and the air inlet valve 211 can be manually operated to control the switch. A manual control valve 222 is provided at the liquid outlet of the liquid storage bottle 210, and the manual control valve 222 is sealed and connected with the liquid outlet of the liquid storage bottle 210 through a first connecting nut 220 and a first sealing gasket 221; the liquid outlet pipeline is a bendable silicone hose 226, and a hose connector 225 is provided at the first end of the silicone hose 226, and the hose connector 225 is threadedly connected with the threaded connector at the outlet of the manual control valve 222, and the two are sealed by a second connecting nut 224 and a second sealing gasket 223; the second end of the silicone hose 226 is connected to a flow meter 227, and the outlet of the flow meter 227 is connected to a solenoid valve 228, and the solenoid valve 228 is fixed on the support frame 110 through a fixing frame 111, and a nozzle 229 is installed at the outlet of the solenoid valve 228. The filling nozzle 229 is made of a rigid material to ensure stable liquid discharge.

[0085] When liquid filling is performed, the liquid flows out from the liquid storage bottle 210 , passes through the manual control valve 222 , the silicone hose 226 , the flow meter 227 and the solenoid valve 228 in sequence, and finally flows to the test tube 500 from the filling nozzle 229 .

[0086] Those skilled in the art will appreciate that the height between the filling nozzle 229 and the test tube 500 can be adjusted according to actual conditions, as long as it is ensured that the liquid does not splash.

[0087] A control panel (not shown in the figure) of the liquid filling device disclosed in the utility model can be arranged on the support frame 110. In order to facilitate medical personnel to fill a single test tube 500 or fill test tubes 500 in batches according to actual conditions, the liquid filling device disclosed in the utility model has two operation modes, one is a batch filling mode, and the other is a single tube filling mode. The two modes correspond to different control buttons on the control panel, respectively.

[0088] During batch perfusion, first open the air inlet valve 211 and the manual control valve 222 on the upper part of the liquid storage bottle 210, put a certain number of test tubes 500 into the test tube rack 300, then put the test tube rack 300 on the rotating table 420, press the control button corresponding to the batch test tube perfusion mode, the rotating motor 410 starts to rotate at a certain angle, and the detection sensor 230 detects the liquid outlet position. If the test tube 500 is not detected at the liquid outlet position, the rotating motor 410 continues to rotate at a certain angle. If the test tube 500 is detected, the rotating motor 410 stops, and the solenoid valve 228 automatically opens for liquid perfusion. The flow meter 227 measures the amount of liquid perfused, and the solenoid valve 228 automatically closes when the set value is reached. Repeat the previous actions until the rotating motor 410 drives the rotating table 420 to rotate one circle and the avoidance part 304 returns to the liquid outlet position. A batch perfusion is completed, and the medical staff can remove the test tube rack 300.

[0089] When perfusing a single test tube 500 or other container, first open the air inlet valve 211 and the manual control valve 222 on the upper part of the liquid storage bottle 210, and the medical staff will place the test tube 500 or other container under the filling nozzle 229, and then press the control button corresponding to the single-tube perfusion mode, and the solenoid valve 228 will automatically open to perfuse the liquid. After the medical staff presses the control button corresponding to the single-tube perfusion mode again, the solenoid valve 228 will automatically close to stop the perfusion, and the rotating assembly 400 will not work during this process. The single-tube perfusion mode allows medical staff to obtain liquid more flexibly, and it is also convenient to use this function to clean the liquid perfusion device later.

Claims

1. A liquid filling device, characterized in that: include: Bracket assembly (100); A liquid outlet assembly (200) comprising a liquid storage bottle (210) and a quantitative control assembly, wherein the liquid storage bottle (210) is arranged on the support assembly (100), and a liquid outlet pipeline is arranged in communication with the liquid outlet of the liquid storage bottle (210), and the quantitative control assembly is arranged on the liquid outlet pipeline and is used to control the quantitative liquid outlet of the liquid storage bottle (210); A test tube rack (300) provided with a plurality of test tube slots (302) for placing test tubes (500); The rotating assembly (400) is arranged on the support assembly (100) and is used to drive each test tube slot (302) on the test tube rack (300) to rotate in sequence to a liquid outlet position corresponding to a liquid outlet of the liquid outlet pipeline.

2. The liquid filling device according to claim 1, characterized in that: The rotating assembly (400) comprises: A rotating table (420) rotatably disposed on the support assembly (100) and provided with a containing groove (423) for containing the test tube rack (300); The rotating motor (410) is disposed on the support assembly (100) and is in transmission connection with the rotating platform (420) so as to drive the rotating platform (420) to drive the test tube rack (300) to rotate.

3. The liquid filling device according to claim 2, characterized in that: The support assembly (100) is provided with a detection sensor (230), and the detection sensor (230) is arranged toward the liquid outlet position and is used to detect whether a test tube (500) is present at the liquid outlet position.

4. The liquid filling device according to claim 3, characterized in that: The rotating platform (420) is provided with a reference component (421) used as a detection reference for the detection sensor (230); The test tube rack (300) is provided with a reference hole for the reference component (421) to be embedded, the test tube slots (302) are arranged circumferentially around the reference hole, and the side walls of the test tube slots (302) are each provided with a detection window (303) for the detection aperture (231) of the detection sensor (230) to pass through and reach the reference component (421).

5. The liquid filling device according to claim 4, characterized in that: The test tube rack (300) is provided with an avoidance portion (304), and along the circumference of the test tube rack (300), the test tube slots (302) are arranged at intervals, and the avoidance portion (304) is provided between two test tube slots (302); When the liquid filling device is in an initial state, the avoidance portion (304) is in the liquid outlet position, and the detection aperture (231) of the detection sensor (230) passes through the avoidance portion (304) and directly illuminates the reference component (421).

6. The liquid filling device according to claim 2, characterized in that: The rotation angle of the rotating motor (410) is controlled by an angle encoder.

7. The liquid filling device according to claim 1, characterized in that: The support assembly (100) comprises: A support frame (110), the liquid storage bottle (210) being arranged on the top of the support frame (110), the rotating assembly (400) being arranged on the bottom of the support frame (110), a filling space being arranged on the support frame (110), and the liquid outlet position being arranged in the filling space; A protective cover (120) is rotatably disposed on the support frame (110) and is used to seal the filling space.

8. The liquid filling device according to claim 7, characterized in that: The support assembly (100) further comprises a baffle (130), wherein the baffle (130) is rotatably disposed on the support frame (110) and is used to protect the connection portion between the liquid storage bottle (210) and the quantitative control assembly.

9. The liquid filling device according to claim 1, characterized in that: The quantitative control component comprises: a flow meter (227), arranged in communication with the liquid outlet of the liquid outlet pipeline, and used for measuring the liquid flow in the liquid outlet pipeline; The solenoid valve (228) is connected to the outlet of the flow meter (227) and is used to control the connection and cutoff of the liquid outlet pipeline. The outlet of the solenoid valve (228) is connected to a nozzle (229) for discharging liquid. The liquid outlet position is opposite to the liquid outlet of the nozzle (229).

10. The liquid filling device according to claim 9, characterized in that: The quantitative control component further comprises a manual control valve (222), the manual control valve (222) being arranged in communication between the liquid storage bottle (210) and the liquid outlet pipeline, and being used for medical personnel to manually control the connection and cutoff of the liquid outlet pipeline; and / or, The solenoid valve (228) is arranged on the bracket assembly (100) via a fixing frame (111).

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