Sealing device of quantitative disc

Abstract

The embodiment discloses a sealing device for a quantitative plate. The sealing device comprises a tray, a heat applying assembly and a transmission assembly. The transmission assembly comprises at least one transmission roller. And the surface of the driving roller sinks inwards to form at least one liquid collecting groove. And the liquid gathering tank is suitable for adsorbing, gathering and / or draining liquid which is driven by the driving roller and inevitably flows out of the quantitative disc.

Description

Technical Field

[0001] The present application relates to the technical field of quantitative tray sealing, and in particular to a sealing device for a quantitative tray. Background Art

[0002] At present, when conducting hygienic evaluation on water samples such as drinking water, source water, bottled water, reclaimed water, secondary water supply, piped water, wastewater, food water, livestock water, and medical water, the main microbial indicators detected are coliform group, heat-resistant coliform group, and Escherichia coli.

[0003] In addition, the enzyme substrate method is commonly used to test these water samples. It is gradually being recognized by domestic testing departments for its convenience, low false positive rate, and applicability to rapid testing of large numbers of samples. Compared with the multi-tube fermentation and membrane filter methods, the enzyme substrate method has greatly reduced detection steps and does not require a high experimental environment. The detection time can be reduced to 24 hours. It has good application prospects in daily water sample monitoring and emergency monitoring, and can be detected in a timely manner to prevent and minimize the probability of major public safety accidents.

[0004] The currently common enzyme substrate method consists of four parts: a programmable quantitative sealing device, a 51- or 97-well quantitative detection plate, a 100mL quantitative bottle, and an enzyme substrate detection reagent. The programmable quantitative sealing machine is one of the necessary equipment for the enzyme substrate method for detecting microorganisms in water. Its main function is to independently seal the water sample in the 51 or 97 wells of the quantitative plate to ensure that each well is independent and does not affect each other or leak.

[0005] However, when the quantitative disk is sealed by these programmable quantitative sealing devices, the liquid inside it may leak into the instrument due to sealing squeezing or inevitable shaking or vibration, posing a safety hazard of short-circuiting the equipment and burning it, causing electric shock. Utility Model Content

[0006] The embodiment of the present application provides a sealing device for a quantitative plate, which can effectively treat the waste liquid that inevitably flows out, prevent or reduce the corrosion of the waste water to the inside of the instrument and the loss of electrical appliances, and reduce safety hazards.

[0007] Based on this, the embodiments of the present application disclose at least the following technical solutions:

[0008] In the first aspect, an embodiment discloses a sealing device for a quantitative tray. The sealing device includes a tray, a transmission assembly and a heating assembly. The heating assembly includes at least one heating roller. The transmission assembly includes at least one motor, at least one transmission roller and at least one negative pressure source. The transmission roller has at least one first end connected to the motor by transmission and at least one liquid collecting groove formed by a surface depression. The negative pressure source has a second end extending to abut or approach the liquid collecting groove. A sealing gap is provided between the transmission roller and the heating roller. The transmission roller is used to drive the quantitative tray placed on the tray to pass through the sealing gap. The sealing gap is suitable for allowing the quantitative tray to pass and for the heat of the heating roller to be applied to the quantitative tray for sealing. The liquid collecting groove is suitable for absorbing, gathering and / or draining the liquid flowing out of the quantitative tray through the sealing gap.

[0009] In these embodiments, the driving roller can drive the quantitative disk placed on the tray to force it to pass through the sealing gap, and the heating roller can apply heat to the quantitative disk to force one end to be sealed (the end filled with liquid) to close each other due to the thermal effect. In this sealing and closing process, the liquid inside the quantitative disk inevitably flows out. The liquid collecting tank, because its surface is attached to the end sealed in the quantitative disk, forces the liquid that inevitably flows out of the quantitative disk in the sealing gap to be adsorbed, gathered and drained to the end away from the quantitative disk by the liquid collecting tank, and is sucked away by the second end of the negative pressure source, so that the waste liquid near the sealing gap can be processed in time, reducing the pollution and interference to the sealing of the next quantitative disk.

[0010] In the second aspect, the embodiment discloses a sealing device for a quantitative disk. The sealing device includes a tray, a transmission assembly and a heating assembly. The heating assembly includes at least one heating roller. The transmission assembly includes at least one motor and at least one transmission roller. The transmission roller has at least one first end connected to the motor by transmission and at least one liquid collecting groove formed by the surface indentation, and a sealing gap is formed between the transmission roller and the heating roller. The transmission roller is used to drive the quantitative disk placed on the tray to pass through the sealing gap. The sealing gap is suitable for the quantitative disk to pass through and for the heat of the heating roller to be applied to the quantitative disk for sealing. The liquid collecting groove is suitable for absorbing, gathering and / or draining the liquid flowing out of the quantitative disk through the sealing gap. The transmission assembly also includes at least one peristaltic member. The peristaltic member includes at least one peristaltic shell, at least one rotor, at least one cam and at least one negative pressure pipeline. The peristaltic shell forms a peristaltic chamber. One end of the rotor is connected to the motor by transmission, and the other end extends to the center of the peristaltic chamber. The cam is connected to the rotor extending to the center of the peristaltic chamber, and forms an extrusion gap with the inner wall of the peristaltic chamber. The negative pressure pipe has a third end that abuts or is close to the liquid collecting tank and a fourth end that extends into the peristaltic cavity and winds through the cam. The width of the negative pressure pipe is greater than the width of the extrusion gap, so that the cam can squeeze the negative pressure pipe, causing the liquid in the negative pressure pipe to generate negative pressure and peristalsis, and the negative pressure is connected to the third end, so as to absorb the liquid from the liquid collecting tank.

[0011] In these embodiments, the driving roller can drive the quantitative disk placed on the tray (for example, by friction) to force it to pass through the sealing gap. The heating roller can apply heat to the quantitative disk to force one end to be sealed (the end into which the liquid is loaded) to be closed due to the thermal effect. Due to the fact that in this sealing and closing process, the liquid inside the quantitative disk inevitably flows out. The liquid collecting tank, due to its surface being attached to one end of the quantitative disk seal, forces the liquid that inevitably flows out to be adsorbed, gathered and drained to one end away from the quantitative disk by the liquid collecting tank, and is sucked away by the third end of the negative pressure pipeline, thereby being able to keep the waste liquid near the sealing gap being processed in time, reducing the pollution and interference to the next quantitative disk seal. And, since the peristaltic member is also driven by the motor, it is possible to save electricity. The motor can drive the transmission roller to rotate and at the same time cause the rotor in the peristaltic member to rotate, and at the same time drive the cam to squeeze, so that the liquid in the negative pressure pipeline generates negative pressure and peristalsis, and the negative pressure is connected to the third end to absorb the liquid from the liquid collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional schematic diagram of a sealing device provided in an embodiment.

[0013] Figure 2 The figure is a three-dimensional schematic diagram of the internal structure of a sealing device provided in an embodiment.

[0014] Figure 3 A schematic plan view of the internal structure of a sealing device provided in one embodiment.

[0015] Figure 4 A schematic plan view of the internal structure of a sealing device provided in one embodiment.

[0016] Figure 5 A partially enlarged schematic diagram of the internal structure of a sealing device provided in an embodiment.

[0017] Figure 6 A partially enlarged schematic diagram of the internal structure of a sealing device provided in an embodiment.

[0018] Figure 7 A schematic plan view of the internal structure of a sealing device provided in one embodiment.

[0019] Figure 8 A partially enlarged schematic diagram of the internal structure of a sealing device provided in an embodiment.

[0020] Fig. 9 A partially enlarged schematic diagram of the internal structure of a sealing device provided in an embodiment.

[0021] Fig.10 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0022] Fig.11 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0023] Fig.12 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0024] Fig.13 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0025] Fig.14 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0026] Fig.15 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0027] Fig.16 A schematic diagram of the planar structure of a transmission roller provided in an embodiment.

[0028] Figure numerals: 100 tray, 200 quantitative plate, 300 transmission assembly, 301 motor, 302 transmission roller, 3020 liquid collecting tank, 3021 first end, 303 negative pressure source, 3030 second end, 3031 channel, 304 sealing gap, 302a transmission roller circumferential direction, 302b transmission roller axial direction, 400 heating assembly, 401 heating roller, 500 water accumulation plate, 501 water accumulation surface, 600 peristaltic member, 601 peristaltic shell, 6010 peristaltic chamber, 602 rotor, 603 cam, 604 negative pressure pipeline, 6041 third end, 6042 fourth end, 605 extrusion gap, 700 recovery assembly, 701 recovery box DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present application more clear, the present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

[0030] Various exemplary embodiments will now be described more fully with reference to the accompanying drawings, in which some exemplary embodiments are shown. In the drawings, the thickness of lines, layers and / or regions may be exaggerated for clarity.

[0031] Therefore, although the exemplary embodiments are capable of various modifications and alternative forms, embodiments thereof are shown by way of example in the drawings and will be described in detail herein. However, it should be understood by those skilled in the art that there is no intention to limit the exemplary embodiments to the specific forms disclosed, but on the contrary, the exemplary embodiments are intended to cover all modifications, equivalents and alternatives falling within the scope of the present invention. Throughout the description of the drawings, the same reference numerals refer to the same or similar elements.

[0032] It should be understood that when an element is referred to as being "connected" to another element, it may be directly connected or coupled to the other element or there may be intervening elements. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements. Other expressions used to describe the relationship between elements may be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.).

[0033] The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit exemplary embodiments. As used herein, the singular forms "one", "an" and "a kind of" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprises", "comprising" and "includes" are used herein to indicate the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups thereof.

[0034] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the exemplary embodiments belong. It should also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0035] Those skilled in the art should understand that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0036] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. In the description of the embodiments of the present application, it should be understood that the terms "first", "second", "third", "fourth", "fifth", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] The embodiment discloses a sealing device for a quantitative plate. Figure 1 , 2 , 3, 4, 5, 6, 7, the sealing device comprises a tray 100, a transmission assembly 300 and a heat application assembly 400. The tray 100 is used to place the quantitative disk 200. The heat application assembly 400 comprises at least one heat application roller 401. The transmission assembly 300 comprises at least one motor 301, at least one transmission roller 302 and at least one negative pressure source 303. The transmission roller 302 has at least one first end 3021 connected to the motor 301 by transmission and at least one liquid collecting groove 3020 formed by the surface indentation. There is a sealing gap 304 between the transmission roller 302 and the heat application roller 401. The transmission roller 302 is used to drive the quantitative disk 200 placed on the tray 100 to pass through the sealing gap 304. The sealing gap 304 is suitable for allowing the quantitative disk 200 to pass and is suitable for the heat of the heat application roller 401 to be applied to the quantitative disk 200 for sealing. The liquid collecting tank 3020 is suitable for absorbing, collecting and / or draining the liquid flowing out of the quantitative disk 200 through the sealing gap 304. The negative pressure source 303 has a second end 3030 extending to abut or approach the liquid collecting tank 3020. The second end 3030 is used to absorb liquid from the liquid collecting tank 3020.

[0038] In these embodiments, the driving roller 302 can drive the quantitative disk 200 (for example, by friction) placed on the pallet 100 to impel it to pass the sealing gap 304. The heating roller 401 can apply heat to the quantitative disk 200 to impel its end to be sealed (the end into which the liquid is loaded) to be closed mutually due to the thermal effect. Due to this sealing and closing process, the internal liquids of the quantitative disk 200 inevitably flow out. And the liquid collecting tank 3020 is because its surface is attached to the end of the quantitative disk 200 sealings, impel it inevitably, the liquid flowing out is absorbed, gathered and drained to an end away from the quantitative disk 200 by the liquid collecting tank 3020, and is sucked away by the second end 3030 of the negative pressure source 303, thereby the nearby waste liquid that can keep the sealing gap 304 can be handled in time, reduce the pollution and interference to the next quantitative disk 200 sealings.

[0039] In some embodiments, Figures 9 to 15 , a plurality of liquid collecting grooves 3020 are arranged along the circumference of the driving roller 302 and / or the axial direction of the driving roller 302. In this way, the liquid collecting grooves 3020 can absorb, gather and drain the liquid that inevitably flows out of the quantitative disk 200 in the sealing gap 304 from multiple directions of the driving roller 302, thereby improving the cleaning efficiency of the liquid.

[0040] In some embodiments, the width of the sealing gap 304 is smaller than the thickness of the quantitative disk 200, for example, by the movable connection of the heating roller 401 (with a movable margin, for example, the two ends are fixed to the shell by flexible parts). When the quantitative disk 200 is driven by the driving roller 302 to pass through the sealing gap 304, the heating roller 401 can press against the quantitative disk 200 to seal the quantitative disk 200.

[0041] In some embodiments, Figure 2 As shown, the second end 3030 is formed by a plurality of channels 3031, and each channel 3031 corresponds to each liquid collecting groove 3020. In this way, the negative pressure generated by each channel 3031 can quickly absorb the liquid collected in each liquid collecting groove 3020, thereby keeping the sealing gap 304 dry and clean.

[0042] In some embodiments, the negative pressure source 303 includes a vacuum pump or a peristaltic pump. Thus, the negative pressure is generated by the vacuum pump or the peristaltic pump, and the negative pressure is extended to the second end 3030 thereof.

[0043] In some embodiments, Figure 3As shown, the sealing device further includes a water collection tray 500. The water collection tray 500 has a water collection surface 501 for collecting liquid flowing out of the sealing gap 304 and / or the liquid collection groove 3020. For example, when the liquid flowing out of the sealing gap 304 and / or the liquid collection groove 3020 inevitably flows out excessively and is not absorbed by the liquid collection groove 3020, the liquid can flow to the water collection surface, thereby facilitating the collection of waste liquid.

[0044] On the other hand, the embodiment discloses a sealing device for a quantitative tray. Figure 1 , 2 , 3, 4, 5, 6, 8, 9, the sealing device comprises a tray 100, a transmission assembly 300 and a heat application assembly 400. The heat application assembly 400 comprises at least one heat application roller 401. The transmission assembly 300 comprises at least one motor 301, at least one peristaltic member 600 and at least one transmission roller 302. There is a sealing gap 304 between the transmission roller 302 and the heat application roller 401. The transmission roller 302 is used to drive the quantitative disk 200 placed on the tray 100 to pass the sealing gap 304. The sealing gap 304 has a width that promotes the heat of the heat application roller 401 to be applied to the quantitative disk 200 and promotes the quantitative disk 200 to seal. The peristaltic member 600 comprises at least one peristaltic shell 601, at least one rotor 602, at least one cam 603 and at least one negative pressure pipeline 604. The peristaltic shell 601 forms a peristaltic chamber 6010. One end of the rotor 602 is drivingly connected to the motor 301, and the other end extends to the center of the peristaltic chamber 6010. The cam 603 is connected to the rotor 602 extending to the center of the peristaltic chamber 6010, and forms an extrusion gap 605 with the inner wall of the peristaltic chamber 6010. The negative pressure pipe 604 has a third end 6041 abutting or approaching the liquid collecting tank 3020 and a fourth end 6042 extending into the peristaltic chamber 6010 and winding through the cam 603. The width of the negative pressure pipe 604 is greater than the width of the extrusion gap 605.

[0045] In these embodiments, the driving roller 302 can drive (for example, by friction) the quantitative disk 200 placed on the pallet 100 to impel it to pass the sealing gap 304. The heating roller 401 can apply heat to the quantitative disk 200 to impel its end to be sealed (the end into which the liquid is loaded) to be closed mutually due to the thermal effect. Due to in this sealing and closing process, the internal liquids of the quantitative disk 200 inevitably flow out. And the liquid collecting tank 3020 is because its surface is attached to an end of the quantitative disk 200 sealings, and the liquid that inevitably flows out is impeled to be absorbed, gathered and drained to an end away from the quantitative disk 200 by the liquid collecting tank 3020, and is sucked away by the third end 6041 of the negative pressure pipeline 604, thereby the nearby waste liquid that can keep the sealing gap 304 can be handled in time, and the pollution and the interference to the next quantitative disk 200 sealings are reduced. And, because the peristaltic member 600 is driven by the motor 301, thereby electric power can be saved. While driving the transmission roller 302 to rotate, the motor 301 can also cause the rotor 602 in the peristaltic member 600 to rotate, and at the same time drive the cam 603 to squeeze, so that the liquid in the negative pressure pipe 604 generates negative pressure and peristalsis, and connects this negative pressure to the third end 6041 to absorb liquid from the liquid collection tank 3020.

[0046] In some embodiments, Figure 8 As shown, the driving end of the motor 301 is connected with the first end 3021 and the rotor 602 through the transmission member respectively. In this way, the motor 301 can drive the transmission roller 302 and the rotor 602 to rotate at the same time. The rotation of the transmission roller 302 can not only drive the quantitative disk 200 placed on the tray 100 to be frictionally driven so as to promote it to pass through the sealing gap 304. The rotation of the transmission roller 302 can also promote the liquid collecting tank 3020 sunken in the surface to follow the rotation, so that the liquid that inevitably flows out of the quantitative disk in the quantitative disk 200 in the sealing gap 304 is adsorbed into the liquid collecting tank 3020, thereby transferring the liquid at the sealing gap 304, and being adsorbed and recovered by the third end 6041 of the negative pressure pipeline 604 that contacts or approaches the liquid collecting tank 3020. At the same time, the rotation of the rotor 602 can simultaneously drive the cam 603 connected to the rotor 602 to squeeze the negative pressure pipe 604 (due to the existence of the extrusion gap 605), forming a seal, generating a strong vacuum, forming a negative pressure in the tube, and the liquid flows accordingly. In some embodiments, the rotor 602 is located in the center of the peristaltic chamber 6010, and multiple cams 603 are evenly arranged on the periphery, and a section of the pump tube between the two cams forms a "pillow"-shaped fluid. The volume of the "pillow" depends on the inner diameter of the pump tube and the geometric characteristics of the rotor. The flow rate depends on the product of three parameters: the rotation speed of the pump head, the size of the "pillow", and the number of "pillows" generated per rotation of the rotor. The size of the "pillow" is generally a constant (except when pumping fluids with particularly high viscosity).

[0047] In some embodiments, Fig. 9As shown, the rotor 602 is connected to the first end 3021 through a transmission member. Thus, when the motor 301 drives the transmission roller 302 to rotate, the quantitative disk 200 is driven to the sealing gap 304 for sealing, and at the same time drives the rotor 602 to rotate, so that negative pressure is generated at the third end 6041, so that the liquid that is squeezed and inevitably flows out of the quantitative disk 200 and the liquid adsorbed and transferred from the liquid collecting tank 3020 are adsorbed to the negative pressure pipe 604 and transferred in time.

[0048] In some embodiments, the transmission member connecting the first end 3021 and the driving end of the motor 301 may be a chain, a belt or a gear. The transmission member connecting the rotor 602 and the driving end of the motor 302 may be a chain, a belt or a gear.

[0049] In some embodiments, Figure 7 , 8 As shown in FIG. 9 , the sealing device further includes a recovery component 700. The recovery component 700 further includes at least one recovery box 701 for containing liquid. The fourth end 6042 of the negative pressure pipe 604 is connected to the recovery box 701, so that the liquid sucked away by the third end 6041 of the negative pressure pipe 604 can be recovered in the recovery box 701.

[0050] In some embodiments, Figure 3 , 7 As shown, the water collection surface 501 of the water collection tray 500 extends into the recovery box 701 , so as to recover the liquid in the water collection tray 500 .

[0051] In some embodiments, a plurality of transmission rollers 302 and heating rollers 401 are arranged along their respective axial directions. Thus, each pair of transmission rollers 302 and heating rollers 401 can form a sealing gap 304, and can seal a quantitative disk 200. Thus, multiple sealing gaps 304 can be used to seal multiple quantitative disks 200 at the same time, thereby improving the sealing efficiency.

[0052] In some embodiments, Fig.10 As shown, the liquid collecting groove 3020 is in a closed ring shape along the circumferential direction 302a of the driving roller.

[0053] In some embodiments, Fig.11 As shown, the liquid collecting groove 3020 is in an incomplete ring shape along the circumferential direction 302a of the driving roller.

[0054] In some embodiments, the liquid collecting groove 3020 is in the shape of an incomplete ring along the circumference 302 a of the driving roller, and gradually extends from the end of the incomplete ring to be flush with the surface of the driving roller 302 .

[0055] In some embodiments, Fig.15 As shown, the liquid collecting groove 3020 is in the shape of a plurality of partitioned short grooves along the circumferential direction 302a of the driving roller.

[0056] In some embodiments, Fig.16 As shown, the liquid collecting groove 3020 is in the shape of a plurality of partitioned short grooves along the circumference 302a of the driving roller, and the ends of the short grooves gradually extend to be flush with the surface of the driving roller 302 .

[0057] In some embodiments, Fig.13 As shown, the liquid collecting groove 3020 is in the shape of an elongated strip along the axial direction of the surface of the driving roller 302 .

[0058] In some embodiments, the liquid collecting groove 3020 is in the shape of an elongated strip along the axial direction of the surface of the driving roller 302, and the end of the elongated strip extends toward the circumference of the driving roller.

[0059] In some embodiments, Fig.14 As shown, the liquid collecting groove 3020 is in the shape of an elongated strip along the axial direction of the surface of the driving roller 302 , and the end of the elongated strip extends toward the circumference of the driving roller until it is flush with the surface of the driving roller 302 .

[0060] In some embodiments, Fig.12 As shown, the liquid collecting groove 3020 is spiral along the axial direction of the surface of the driving roller 302.

[0061] In these embodiments, the width, depth and material of the collection groove 3020 are suitable to allow the inevitable outflow to be adsorbed and collected due to its liquid viscosity and surface tension.

[0062] In some embodiments, the sealing device of the quantitative disk further comprises at least one disinfection element. The disinfection element is configured near the sealing gap 304, or near the driving roller 302, or near the first end 3021, or near the second end 3030, or near the water accumulation tray 500, or near the water accumulation surface 501, or near the third end 6041.

[0063] In some embodiments, the disinfection component is selected from at least one of a 75% ethanol solution spray component, an 84 disinfectant spray component, an ultraviolet ray emitting component (such as an ultraviolet lamp), an ozone generating component (such as an ozone generating medium of an enamel corona medium, a quartz corona medium, a glass corona medium, or a ceramic corona medium), an ethylene oxide generating component or a high-pressure steam generating component (high-pressure steam generator), and a photohydrogen ion generating component (photohydrogen ion air purification and disinfection device).

[0064] In some embodiments, the sealing device further includes a power supply, a plurality of sensors, and various control devices for controlling at least one of the working frequency of the motor, the switch of the motor, the switch of the heating roller, the heating temperature of the heating roller, or the rotation frequency of the rotor. These sensors are selected from at least one of a photoelectric sensor, an optical fiber sensor, a laser sensor, a displacement sensor, a temperature sensor, or a speed sensor. These control devices include at least one of a rectifier module, a filter module, a step-down conversion module, a transformer module, a capacitor filter module, a voltage stabilization module, or a weak current control module.

[0065] In some embodiments, the sealing device further includes a single chip microcomputer, which is electrically connected to these capacitors, sensors and various control devices to realize intelligent control of the working frequency of the motor, the switch of the motor, the switch of the heating roller, the heating temperature of the heating roller or the rotation frequency of the rotor. In some embodiments, the sealing device further includes a human-computer interaction interface, which is used to display the control parameters of the single chip microcomputer controlling the motor, the heating roller, the rotor, etc. on the human-computer interaction interface, so as to clearly allow the user to operate. In some embodiments, the sealing device further includes an indicator light for warning and reminding its working status, such as a red indicator light when the power is turned on and a green indicator light when the heating roller reaches the working temperature.

[0066] For example, in one embodiment, the sealing device is connected to a power source and turned on, the red power indicator light is on, the heating roller of the sealing device starts to preheat, and after about 10 minutes, when the temperature of the heating roller reaches 150-160°C, the green signal light is on, indicating that the machine can perform the sealing of the quantitative disk, and the quantitative disk loaded with the water sample to be tested is placed on the corresponding silicone rubber disk pad, and then placed on the tray, and gently pushed into the entrance bin, at this time, the photoelectric sensor works, the motor rotates to drive the heating roller to rotate, and the quantitative disk is pulled and pressurized and heated, and after the sealing is completed, the quantitative disk and the disk pad slide out from the outlet, the motor will stop rotating, and the sealing of a single sample is completed. The sealing operation is the same as above, and the LCD counting display shows the number of samples that have been sealed.

[0067] In some embodiments, the heating roller 401 is a highly pressure-resistant aluminum cylinder, which is heated by an electric heating wire inside the cylinder, and the outer wall of the cylinder is coated with a film, which is heat-resistant, wear-resistant, anti-oxidation and completely insulated. The heating roller 401 itself has high hardness and good thermal conductivity; there is also a temperature sensor and a self-recovery fuse close to the outer wall of the cylinder on the back of the instrument, and the outside of the cylinder is insulated by high-temperature resistant heat-resistant materials. When the cylinder temperature reaches 180°C, the temperature is controlled within 5°C. In special circumstances, when the surface temperature of the cylinder is overheated to more than 190~200°C, the self-recovery fuse is powered off. The heating roller 401 is powered off and stops heating. When the temperature of the heating roller drops to 180°C, the self-recovery fuse automatically resumes power, the heating roller 401 works normally, and the photoelectric sensor is powered on. When the quantitative disk to be sealed is placed on the tray, the photoelectric sensor receives the light reflection signal from the back, and the motor 30 starts to rotate, pulling the quantitative disk for sealing. The heating roller 401 and the transmission roller 302 are protected by insulation materials, surface coating and other protective measures to ensure that they can work stably under normal circumstances and eliminate the hidden dangers of electric shock and high temperature burns.

[0068] In some embodiments, the quantitative disk 200 is divided into two parts, one part is made of non-toxic plastic, which can be made of polyethylene, non-toxic polyvinyl chloride or polypropylene, etc., and can be designed with different numbers and volumes of holes according to different requirements. The most commonly used one is the 51-hole quantitative disk specified in the national standard "Sanitary Standard for Drinking Water" (GB 5749), and can also be used for quantitative disks with 10 holes, 64 holes, 97 holes and other holes. The manufacturing process is to make a mold of copper or aluminum material by a vacuum forming process; the other part is composed of light-colored paper, aluminum foil, and an adhesive layer. It has moderate thickness, high strength, and good thermal conductivity. When the heating roller is working, it is in close contact with the composite film. At this time, the adhesive layer of the composite film is heated and heat-sealed to the plastic of the quantitative disk body. The adhesive layer melts above 120°C and can be tightly combined with the plastic disk body under pressure. The adhesive layer is insoluble in water and has certain strength and toughness.

[0069] In some embodiments, the quantitative disk 200 to be sealed can be customized into holes of different numbers and sizes according to requirements, and a silicone rubber disk pad corresponding to the quantitative disk 200 can be designed or manufactured. Before the quantitative disk 200 is used, its plastic disk body has been heat-sealed on three sides with the composite film to become a container with one end open. The silicone rubber disk pad is made of silicone rubber material, which is heat-resistant and has a certain elasticity. At the same time, it can provide sufficient friction traction for the quantitative disk 200 to move in the sealing device. When the quantitative disk 200 is sealed, the quantitative disk 200 is placed on the silicone rubber disk pad, and its protruding holes are placed in the holes of the silicone rubber disk pad. The porous plastic of the quantitative disk 200 contacts the rubber frame of the silicone rubber disk pad, and the holes for loading the water sample to be tested are not subjected to pressure and heat when the quantitative disk 200 is sealed. This ensures the characteristics of the sealing of the sealing device: uniform, tight, and the water sample is not affected by high temperature.

[0070] In some embodiments, the gap between the heating roller 401 and the driving roller 302 is slightly smaller than the thickness of the quantitative disk 200, ensuring that the composite film of the quantitative disk 200 and the plastic of the disk body can be closely contacted and pressed when the sealing device is working. The surface of the heating roller is coated with a special material film, which has the characteristics of increased friction, heat resistance, wear resistance, and oxidation resistance. The bracket of the heating roller is composed of a relatively high hardness spring, an aluminum alloy frame, a bearing, and a screw, and is fixed to the bottom plate of the sealing device. When the heating roller is working, the force direction and the vertical direction of the bracket form an angle of about 10-15 degrees, ensuring that the sealing of the quantitative disk is a stable sealing from bottom to top, and ensuring that the water sample can evenly fill the quantitative holes of the quantitative disk.

[0071] For example, the back of the quantitative disk 200 is a three-layer structure composed of paper, aluminum and adhesive layer, which has a certain strength. Before use, the three sides have been sealed, leaving only one side open. When in use, pour the water sample to be tested from the opening, and then place it on the matching 51-hole or 97-hole silicone rubber pad, with the opening slightly tilted upward, and place it on the tray 100. The quantitative disk 200 is introduced into the sealing device from bottom to top through the photoelectric sensor and the transmission device. The aluminum-plastic composite film and the quantitative disk are tightly heat-sealed by heating with an electric heating wheel and the pressure of a heating roller, ensuring that each gap is filled with the water sample to be tested, without leakage or rupture. Each pore filled with water constitutes an independent unit, and the relevant bacterial detection results can be determined after cultivation. The operation method includes: adding culture medium reagent to 100ml of the water sample to be tested and mixing; pouring the water sample to be tested into a 51-hole or 97-hole quantitative disk; encapsulating the quantitative disk with a program-controlled quantitative sealing device, and culturing at 36℃±1℃ for 24 hours; and interpreting the results.

[0072] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A sealing device for a quantitative disk, characterized in that: include: A tray, used for placing the quantitative tray; A heat application assembly including at least one heat application roller; A transmission assembly, the transmission assembly comprising: at least one electric motor; At least one transmission roller, the transmission roller having at least one first end drivingly connected to the motor and at least one liquid collecting groove formed by a recessed surface, a sealing gap being formed between the transmission roller and the heating roller, the transmission roller being used to drive the quantitative disk placed on the tray to pass through the sealing gap, the sealing gap being suitable for the quantitative disk to pass through and for the heat of the heating roller to be applied to the quantitative disk for sealing, and the liquid collecting groove being suitable for absorbing, collecting and / or draining the liquid flowing out of the quantitative disk passing through the sealing gap; At least one negative pressure source has a second end extending to abut against or approach the liquid collecting tank, and the second end is used to absorb liquid from the liquid collecting tank.

2. The sealing device according to claim 1, characterized in that: A plurality of the liquid collecting grooves are arranged along the circumferential direction of the driving roller and / or the axial direction of the driving roller.

3. The sealing device according to claim 2, characterized in that: The second end is formed by a plurality of channels, and each of the channels corresponds to each of the liquid collecting grooves.

4. The sealing device according to claim 1, characterized in that: The negative pressure source includes a vacuum pump and / or a peristaltic pump.

5. The sealing device according to claim 1, characterized in that: The sealing device of the quantitative disk further comprises a water accumulation disk having a water accumulation surface for collecting liquid flowing out of the sealing gap and / or the liquid collecting groove.

6. A sealing device for a quantitative disk, characterized in that: include: A tray, used for placing the quantitative tray; A heat application assembly including at least one heat application roller; A transmission assembly, the transmission assembly comprising: at least one electric motor; At least one transmission roller, the transmission roller having at least one first end drivingly connected to the motor and at least one liquid collecting groove formed by a recessed surface, a sealing gap being formed between the transmission roller and the heating roller, the transmission roller being used to drive the quantitative disk placed on the tray to pass through the sealing gap, the sealing gap being suitable for the quantitative disk to pass through and for the heat of the heating roller to be applied to the quantitative disk for sealing, and the liquid collecting groove being suitable for absorbing, collecting and / or draining the liquid flowing out of the quantitative disk passing through the sealing gap; Wherein, the transmission assembly further comprises at least one peristaltic member, and the peristaltic member comprises: at least one peristaltic shell, the peristaltic shell forming a peristaltic chamber; at least one rotor, one end of which is drivingly connected to the motor and the other end of which extends to the center of the peristaltic chamber; at least one cam, the cam being connected to the rotor extending to the center of the peristaltic chamber and forming an extrusion gap with the inner wall of the peristaltic chamber; at least one negative pressure pipe, the negative pressure pipe having a third end abutting or close to the liquid collecting tank and a fourth end extending into the peristaltic cavity and winding through the cam, the width of the negative pressure pipe being greater than the width of the extrusion gap; When the rotor and the cam are driven to rotate by the motor, the negative pressure pipe can recover liquid from the liquid collecting tank.

7. The sealing device according to claim 6, characterized in that: The driving end of the motor is connected to the first end and the rotor through a transmission member, respectively; or the rotor is connected to the first end through a transmission member.

8. The sealing device according to claim 6, characterized in that: The sealing device of the quantitative disk further includes a recovery component, and the recovery component further includes at least one recovery box for containing liquid, and the fourth end is connected to the recovery box.

9. The sealing device of the quantitative disk according to any one of claims 1 to 8, characterized in that: A plurality of the driving rollers and the heating rollers are arranged along their respective axial directions.

10. The sealing device of the quantitative disk according to any one of claims 1 to 9, characterized in that: The liquid collecting tank has any of the following structures A to I: A: It is in a closed ring shape along the circumference of the transmission roller; B: an incomplete ring shape that is interrupted along the circumference of the transmission roller; C: an incomplete ring shape that is interrupted along the circumference of the transmission roller, and gradually extends from the end of the incomplete ring shape to be flush with the surface of the transmission roller; D: a plurality of short grooves separated along the circumference of the transmission roller; E: a plurality of short grooves are formed along the circumference of the transmission roller, and the ends of the short grooves gradually extend to be flush with the surface of the transmission roller; F: in the shape of a long strip along the axial direction of the driving roller surface; G: is in the shape of an elongated strip along the axial direction of the surface of the transmission roller, and extends toward the circumference of the transmission roller at the end of the elongated strip; H: is in the shape of an elongated strip along the axial direction of the transmission roller surface, and extends toward the circumference of the transmission roller at the end of the elongated strip until it is flush with the surface of the transmission roller; I: It is spiral along the axial direction of the driving roller surface.

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