Automatic constant volume instrument

Abstract

The utility model relates to an automatic constant volume instrument which comprises an installation shell, a pump set, a liquid storage bottle set, a visual detection device and a controller. A first platform and a second platform are arranged at two ends of the mounting shell, the liquid storage bottle group is placed on the first platform, and the second platform is used for placing the volumetric flasks; the pump set, the visual detection device and the controller are all arranged on the mounting shell, and the visual detection device and the pump set are both electrically connected with the controller; the pump set communicates with the liquid storage bottle set, a liquid outlet of the pump set communicates with a liquid outlet pipe set, and the end, away from the pump set, of the liquid outlet pipe set penetrates through the mounting shell and is located above the second platform; the first lifting assembly is arranged on the mounting shell, the visual detection device is arranged at the lifting end of the first lifting assembly, and a detection opening is formed in the mounting shell; the first lifting assembly is electrically connected with the controller. According to the automatic constant volume instrument disclosed by the utility model, the visual detection device in the automatic constant volume instrument can adapt to and be aligned with the scale marks of the volumetric flasks with different specifications, so that the constant volume of the volumetric flasks with different specifications is realized, and the applicability and the flexibility are higher.

Description

Technical Field

[0001] This utility model relates to the field of experimental instrument technology, and in particular to an automatic volumetric calibrator. Background Technology

[0002] A volumetric flask is an instrument that combines machine vision and automation technologies to precisely control and measure the volume of liquids. It typically consists of a high-precision camera, a mechanical motion system, and a control system. However, existing volumetric flasks are only compatible with one type of volumetric flask and can only be used to fill and dilute liquids to that specific size via a camera, limiting their applicability. Utility Model Content

[0003] This invention provides an automatic volumetric flask, whose visual inspection device can adapt to and align with the graduation lines of different volumetric flasks, thereby achieving volumetric flask volumetric flask volumetric flasks of different sizes, and has higher applicability and flexibility.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic volumetric accumulator includes a mounting housing, a pump assembly, a liquid storage bottle assembly, a vision inspection device, and a controller;

[0006] The mounting housing is provided with a first platform and a second platform at both ends. The liquid storage bottle group is placed on the first platform and the second platform is used to place volumetric flasks.

[0007] The aforementioned pump set, vision inspection device, and controller are all mounted on the aforementioned mounting housing, and the aforementioned vision inspection device and the aforementioned pump set are all electrically connected to the aforementioned controller;

[0008] The pump set is connected to the liquid storage bottle set. The outlet of the pump set is connected to the liquid outlet pipe set. The end of the liquid outlet pipe set away from the pump set passes through the mounting shell and is located above the second platform for insertion into the volumetric flask for liquid supply.

[0009] It also includes a first lifting assembly disposed on the aforementioned mounting housing, the aforementioned visual inspection device disposed on the lifting end of the aforementioned first lifting assembly, the aforementioned mounting housing is provided with a detection port, the aforementioned visual inspection device detects the scale of the volumetric flask located on the aforementioned first platform through the aforementioned detection port; the aforementioned first lifting assembly is electrically connected to the aforementioned controller.

[0010] Preferably, it also includes a second lifting assembly, which is disposed inside the mounting housing. The second lifting assembly is electrically connected to the controller. The lifting end of the second lifting assembly is connected to a fixing plate. The liquid outlet pipe assembly located outside the mounting housing is fixed on the fixing plate and can move with the fixing plate.

[0011] Preferably, the above-mentioned liquid storage bottle group includes a first liquid storage bottle, the above-mentioned pump group includes a first pump and a second pump, the above-mentioned liquid outlet pipe group includes a first liquid outlet pipe and a second liquid outlet pipe, and the portions of the first liquid outlet pipe and the second liquid outlet pipe located outside the above-mentioned mounting shell are both fixed to the above-mentioned fixing plate.

[0012] Both the first pump and the second pump are connected to the first storage bottle.

[0013] The first pump and the second pump are respectively connected to the first outlet pipe and the second outlet pipe;

[0014] The diameter of the first outlet pipe is larger than the diameter of the second outlet pipe.

[0015] Preferably, the above-mentioned liquid storage bottle group includes a first liquid storage bottle and a second liquid storage bottle, the above-mentioned pump group includes a first pump and a second pump, the above-mentioned liquid outlet pipe group includes a first liquid outlet pipe and a second liquid outlet pipe, and the portions of the first liquid outlet pipe and the second liquid outlet pipe located outside the above-mentioned mounting shell are both fixed to the above-mentioned fixing plate.

[0016] The first pump and the second pump are respectively connected to the first liquid storage bottle and the second liquid storage bottle;

[0017] The first pump and the second pump are respectively connected to the first outlet pipe and the second outlet pipe;

[0018] The diameter of the first outlet pipe is larger than the diameter of the second outlet pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] By setting up the first lifting component, the detection end of the vision inspection device can move in the vertical direction, thereby changing the height of its detection end to support the graduation lines of different volumetric bottles, realizing the volume determination of different volumetric bottles, and making it more applicable and flexible. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall volume-fixing device in an embodiment of this utility model;

[0023] Figure 2 This is a front view of the volumetric applicator in an embodiment of this utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the liquid storage bottle assembly, pump assembly, first lifting device, second lifting device, and volumetric flask in an embodiment of the present invention.

[0025] Figure 4 This is a front view of the liquid storage bottle assembly, pump assembly, first lifting device, second lifting device, and volumetric flask in an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Mounting housing; 101. Detection port; 2. Pump assembly; 21. First pump; 22. Second pump; 3. Liquid storage bottle assembly; 31. First liquid storage bottle; 32. Second liquid storage bottle; 4. Visual inspection device; 5. First platform; 6. Second platform; 7. Discharge pipe assembly; 71. First discharge pipe; 72. Second discharge pipe; 8. First lifting assembly; 9. Second lifting assembly; 10. Fixing plate; 11. Volumetric flask. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figure 1-4As shown, this utility model embodiment provides an automatic volumetric flask, including a mounting shell 1, a pump assembly 2, a liquid storage bottle assembly 3, a visual inspection device 4, and a controller. The outer end of the mounting shell 1 is provided with a first platform 5 and a second platform 6. The liquid storage bottle assembly 3 is placed on the first platform 5 and stores the liquid to be injected into a volumetric flask 11. The volumetric flask 11 is placed on the second platform 6, awaiting liquid injection and volumetric flask filling. In this embodiment, the pump assembly 2, the visual inspection device 4, and the controller are all installed inside the mounting shell 1, although they can also be partially installed outside the mounting shell 1, depending on the actual situation. The pump assembly 2 and the visual inspection device 4 are both electrically connected to the controller. To achieve liquid injection into the volumetric flask 11, the pump assembly 2 is connected to the liquid storage bottle assembly 3, and the pump assembly 2 discharges liquid... The outlet is connected to a liquid outlet pipe assembly 7. The end of the liquid outlet pipe assembly 7 away from the pump assembly 2 passes through the mounting shell 1 and is located above the second platform 6. The liquid outlet end of the liquid outlet pipe assembly 7 is inserted into the volumetric flask 11. Under the action of the pump assembly 2, liquid is drawn from the storage bottle assembly 3 and supplied to the volumetric flask 11 through the liquid outlet pipe assembly 7. A visual detection device 4 is provided, which can be a camera. A detection port 101 is opened on the mounting shell 1. The visual detection device 4 can detect the scale line of the outer volumetric flask 11 through the detection port 101. By aligning the detection end of the visual detection device 4 with the scale line of the volumetric flask 11, the visual detection device 4, the pump assembly 2 and the controller work together to fill and dilute the volumetric flask 11. This is existing technology and will not be described in detail.

[0032] To enable the volumetric flask 11 of various sizes to be filled and diluted to volume, a first lifting assembly 8 is provided inside the mounting housing 1. A vision inspection device 4 is installed at the lifting end of the first lifting assembly 8. The vision inspection device 4 can move vertically, thereby changing the height of its inspection end. Correspondingly, the inspection port 101 is set as a vertical rectangular hole. For different volumetric flasks 11, the first lifting assembly 8 can drive the vision inspection device 4 to move up and down, so that its inspection end is aligned with the scale line of the volumetric flask 11 through the inspection port 101 and is flush with it. Then, with the cooperation of the vision inspection device 4, the pump group 2 and the controller, the volumetric flask 11 is filled and diluted to volume. This allows the volumetric flask to support multiple sizes of volumetric flasks 11, making it more flexible to use.

[0033] Specifically, in this embodiment, the first lifting assembly 8 includes a first mounting frame, a first lead screw transmission mechanism, and a mounting plate. The first lead screw transmission mechanism is mounted on the first mounting frame, and the mounting plate is mounted on the moving end of the first lead screw transmission mechanism. The mounting plate is U-shaped, with its opening facing away from the first lead screw transmission mechanism. A vision detection device 4 is mounted between the two side plates of the mounting plate and stably fixed to the mounting plate. The vision detection device 4 is horizontally positioned, with its detection end also horizontally positioned. Of course, the first lifting assembly 8 can also be other existing lifting assemblies, such as a vertically positioned motor push rod or a gear and rack mechanism, etc.

[0034] Specifically, a second lifting assembly 9 is also provided inside the mounting housing 1. The second lifting assembly 9 is electrically connected to the controller. The lifting end of the second lifting assembly 9 is connected to a fixing plate 10. The end of the fixing plate 10 away from the mounting housing 1 passes through its side wall and extends to its outer side. The liquid outlet pipe assembly 7 located outside the mounting housing 1 is fixed on the fixing plate 10 located outside the mounting housing 1, so that it can move up and down with the fixing plate 10. It can move to the bottom of the volumetric flask 11 before filling it with liquid, and then rise while filling it with liquid, so that the liquid outlet end of the liquid outlet pipe assembly 7 is not too far from the liquid filling surface inside the volumetric flask 11. This can minimize the splashing of liquid after entering the volumetric flask 11 and prevent splashing onto the bottle wall of the volumetric flask 11, ensuring the stability of the liquid level after filling and rising steadily, avoiding errors in volume determination due to splashed liquid on the bottle wall. It should be noted that the rising speed of the outlet pipe assembly 7 during the injection process is specifically set by the operator. However, this is not within the scope of the technical solution of this patent application. The above technical solution, compared with other patents, only discloses that it also has a second lifting component 9, which enables the outlet pipe assembly 7 to rise with the rise of the liquid level during the injection process, maintain the distance between the outlet pipe of the outlet pipe assembly 7 and the liquid level, and maintain the stability of the injection surface.

[0035] Specifically, in this embodiment, the second lifting assembly 9 includes a second mounting bracket, a second lead screw transmission mechanism, and a vertical rod. The second mounting bracket is installed on the inner wall of the mounting housing 1, and the second lead screw transmission mechanism is mounted on the second mounting bracket. The lower end of the vertical rod is connected to the moving end of the first lead screw transmission mechanism, and the upper end of the vertical rod is connected to the fixing plate 10. The fixing plate 10 is fixed to the liquid outlet tube assembly 7. Under the power of the second lead screw transmission mechanism, the fixing plate 10 can be adjusted in height in the vertical direction, allowing the liquid outlet end of the liquid outlet tube assembly 7 to be adjusted in height. The vertical rod further increases the distance at which the liquid outlet height of the liquid outlet end of the liquid outlet tube assembly 7 can be adjusted, thereby accommodating more sizes of volumetric flasks 11. Of course, the second lifting assembly 9 can also be other existing lifting assemblies, such as a vertically arranged motor push rod or a gear and rack mechanism, etc.

[0036] Specifically, in this embodiment, the liquid storage bottle group 3 includes a first liquid storage bottle 31 and a second liquid storage bottle 32, the pump group 2 includes a first pump 21 and a second pump 22, and the liquid outlet pipe group 7 includes a first liquid outlet pipe 71 and a second liquid outlet pipe 72. The portions of the first liquid outlet pipe 71 and the second liquid outlet pipe 72 located outside the mounting shell 1 are both fixed to the fixing plate 10. Specifically, the first pump 21 and the second pump 22 are respectively connected to the first liquid storage bottle 31 and the second liquid storage bottle 32, and the first pump 21 and the second pump 22 are respectively connected to the first liquid outlet pipe 71 and the second liquid outlet pipe 72. The diameter of the first liquid outlet pipe 71 is larger than the diameter of the second liquid outlet pipe 72, thereby facilitating the injection of liquid. First, the first pump 21 operates at high power, drawing solution from the first storage bottle 31. The solution enters the volumetric flask 11 through the first outlet pipe 71, rapidly filling the flask. Then, when the solution level is close to the graduation mark (a preset position, determined by the operator and monitored by the visual inspection device 4, which is existing technology), the first pump 21 stops, and the second pump 22 starts operating. The second pump 22 draws solution from the second storage bottle 32 at low power, dripping the solution through the second outlet pipe 72 to improve the accuracy of volume determination. Of course, the first and second storage bottles 31 can contain the same solution, or they can each contain a different solution for mixing, making it suitable for preparing solutions of various colors and highly adaptable.

[0037] Specifically, in another embodiment, the liquid storage bottle group 3 includes only the first liquid storage bottle 31, the pump group 2 includes the first pump 21 and the second pump 22, and the liquid outlet pipe group 7 includes the first liquid outlet pipe 71 and the second liquid outlet pipe 72. The portions of the first liquid outlet pipe 71 and the second liquid outlet pipe 72 located outside the mounting shell 1 are both fixed on the fixing plate 10. The first pump 21 and the second pump 22 are both connected to the first liquid storage bottle 31, and the first pump 21 and the second pump 22 are respectively connected to the first liquid outlet pipe 71 and the second liquid outlet pipe 72. The diameter of the first liquid outlet pipe 71 is larger than the diameter of the second liquid outlet pipe 72. Specifically, when filling the volumetric flask 11, the first pump 21 is used for rapid filling first. After reaching the preset position, the second pump 22 is used for dripping. After the volume is fixed, the second pump 22 is stopped.

[0038] Specifically, a control touch screen is also installed on the outer wall of the mounting shell 1. The control touch screen is electrically connected to the controller, and some operations of the volumetric osmosis instrument can be performed through the control touch screen, such as starting the liquid injection of the volumetric osmosis instrument. The control touch screen will also display data such as liquid injection speed and time.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An automatic volume control device, characterized in that, Includes mounting housing, pump unit, liquid storage bottle assembly, vision inspection device, and controller; The mounting housing has a first platform and a second platform at both ends. The liquid storage bottle group is placed on the first platform, and the second platform is used to place the volumetric flask. The pump set, vision inspection device, and controller are all mounted on the mounting housing, and the vision inspection device and the pump set are electrically connected to the controller. The pump unit is connected to the liquid storage bottle group, and the outlet of the pump unit is connected to the liquid outlet pipe group. The end of the liquid outlet pipe group away from the pump unit passes through the mounting shell and is located above the second platform for insertion into the volumetric flask for liquid supply. It also includes a first lifting assembly disposed on the mounting housing, the visual inspection device disposed on the lifting end of the first lifting assembly, the mounting housing is provided with a detection port, and the visual inspection device aligns the scale of the volumetric flask located on the first platform through the detection port; the first lifting assembly is electrically connected to the controller.

2. The automatic volumetric applicator according to claim 1, characterized in that, It also includes a second lifting assembly, which is located inside the mounting housing. The second lifting assembly is electrically connected to the controller. The lifting end of the second lifting assembly is connected to a fixing plate. The liquid outlet pipe assembly located outside the mounting housing is fixed on the fixing plate and can move with the fixing plate.

3. The automatic volumetric applicator according to claim 2, characterized in that, The liquid storage bottle group includes a first liquid storage bottle, the pump group includes a first pump and a second pump, and the liquid outlet pipe group includes a first liquid outlet pipe and a second liquid outlet pipe. The portions of the first liquid outlet pipe and the second liquid outlet pipe located outside the mounting shell are both fixed to the fixing plate. Both the first pump and the second pump are connected to the first storage bottle; The first pump and the second pump are respectively connected to the first outlet pipe and the second outlet pipe; The diameter of the first outlet pipe is larger than the diameter of the second outlet pipe.

4. The automatic volumetric applicator according to claim 2, characterized in that, The liquid storage bottle group includes a first liquid storage bottle and a second liquid storage bottle; the pump group includes a first pump and a second pump; the liquid outlet pipe group includes a first liquid outlet pipe and a second liquid outlet pipe; the portions of the first liquid outlet pipe and the second liquid outlet pipe located outside the mounting housing are both fixed to the fixing plate. The first pump and the second pump are respectively connected to the first storage bottle and the second storage bottle; The first pump and the second pump are respectively connected to the first outlet pipe and the second outlet pipe; The diameter of the first outlet pipe is larger than the diameter of the second outlet pipe.

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