Vacuum parallel concentrator

Abstract

The utility model provides a vacuum parallel concentrator, comprising: a base, the top of which is provided with a guide member and a mounting plate; the concentration box is positioned above the base, a sliding piece matched with the guide piece is arranged at the bottom of the concentration box, and a mounting seat is arranged at the side part of the concentration box; the shaking-up mechanism comprises a first driving piece arranged on the mounting plate and is provided with a first driving shaft and a swinging block connected with the first driving shaft; one end of the connecting rod assembly is rotationally connected with the swing block, the other end of the connecting rod assembly is rotationally connected with the mounting base, so that a first axis and a second axis are formed at the two ends of the connecting rod assembly respectively, the first axis is parallel to the rotating axis of the first driving shaft, and the second axis is perpendicular to the extending direction of the guide part. According to the device, mild oscillation of a liquid sample can be realized, and different oscillation requirements of users can be met by reasonably configuring the oscillation amplitude of the concentration box, so that the application scene of the device is greatly expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of sample concentration, in particular to a vacuum parallel concentrator. Background Art

[0002] A vacuum parallel concentrator is an instrument used for concentrating liquid samples, widely used in fields such as food testing, environmental monitoring, and biomedicine. Its principle is to accelerate sample evaporation by exploiting the lower boiling point of solvents in low-pressure environments. Specifically, when a solvent containing a target substance is placed in a sealed, low-pressure environment, the boiling point of the solvent decreases due to the reduced external pressure, allowing the solvent to evaporate at a lower temperature. The evaporated solvent can then be recovered through a condensation system, achieving the desired concentration.

[0003] Usually, in order to be able to evaporate and concentrate the solvent more fully, the vacuum parallel concentrator is generally also provided with a corresponding shaking and oscillating mechanism to improve the concentration efficiency of the equipment. For example, the Chinese patent with patent number CN217549014U discloses a parallel vacuum concentrator, including a shaking and heating device, a flip cover assembly and a condensing device; the shaking and heating device includes a driving mechanism, a heating assembly and a support tray, the flip cover assembly includes a cover plate, the condensing device includes a condenser and a vacuum pump, the support tray is used to place multiple receiving bottles, the driving mechanism is used to shake the support tray, the heating assembly is used to heat the receiving bottles, and the condenser is used to cool and collect the evaporated liquid in the receiving bottles. Specifically, the driving mechanism in the concentrator includes a servo motor, a right-angle reducer and an eccentric shaft, the servo motor is fixedly connected to the input end of the right-angle reducer, and the output end of the right-angle reducer is fixedly connected to the eccentric shaft. In addition, an eccentric wheel is provided at the end of the eccentric shaft, and the eccentric wheel is connected to the bottom of the support tray. Driven by the servo motor, the eccentric shaft drives the eccentric wheel to rotate, so that the support tray can be shaken under the drive of the eccentric wheel to achieve uniform shaking of the liquid sample.

[0004] For this type of shaking and oscillating mechanism, since the oscillation amplitude of the support tray mainly depends on the setting method and size of the eccentric shaft and the eccentric wheel, when the size of the eccentric wheel is large, the support tray has a larger oscillation amplitude; when the size of the eccentric wheel is small, the support tray has a smaller oscillation amplitude. However, no matter how the size of the eccentric wheel is adjusted, the oscillation amplitude of the support tray is always within a certain range. In addition, since the eccentric wheel is set horizontally, the support tray usually shakes along the circumference of the eccentric wheel. This shaking method is relatively gentle and is mostly suitable for liquid samples that need to be gently shaken. This limits the application scenarios of the device to a certain extent. For liquid samples that require rapid shaking, the shaking effect of this type of shaking and oscillating mechanism is poor, which is not conducive to improving the efficiency of subsequent equipment in concentrating liquid samples.

[0005] This shows that the existing technology needs to be further improved and enhanced. Utility Model Content

[0006] In view of the above problems, an embodiment of the present invention provides a vacuum parallel concentrator to solve the problem of poor shaking effect of existing concentrating equipment.

[0007] The present invention provides a vacuum parallel concentrator, comprising:

[0008] A base, with a guide member and a mounting plate provided on the top;

[0009] The concentrating box is located above the base, with a sliding member that matches the guide member at the bottom and a mounting seat at the side;

[0010] Shaking mechanism, including

[0011] A first driving member disposed on the mounting plate comprises a first driving shaft and a swing block connected to the first driving shaft;

[0012] The connecting rod assembly has one end rotatably connected to the swing block and the other end rotatably connected to the mounting base, so that the two ends of the connecting rod assembly respectively form a first axis and a second axis, wherein the first axis is parallel to the rotation axis of the first drive shaft, and the second axis is perpendicular to the extension direction of the guide member.

[0013] In some embodiments, the connecting rod assembly includes:

[0014] A first rotating sleeve rotatably connected to the swing block is provided with a first assembly hole;

[0015] A second rotating sleeve rotatably connected to the mounting seat and having a second assembly hole;

[0016] The adjusting screw has two ends respectively matched with the first assembly hole and the second assembly hole, and the adjusting screw can slide in the first assembly hole and the second assembly hole, so that the connecting rod assembly can be extended and retracted along the axial direction of the adjusting screw.

[0017] In some embodiments, the concentrate tank comprises:

[0018] base plate;

[0019] The box body is arranged on the bottom plate and has a working chamber;

[0020] A cover body that matches the box body;

[0021] The cover opening mechanism is located at the rear side of the box body and is connected to the bottom plate and the cover body respectively. It has a cover closing state in which the cover body seals the working cavity, and a cover opening state in which the cover body opens the working cavity.

[0022] In some embodiments, the cover body includes a cover plate and a pair of connecting ears provided on the edge of the cover plate, and a rotating shaft respectively connected to the pair of connecting ears;

[0023] Opening mechanism, including

[0024] A pair of support beams are provided on the bottom plate, and both ends of the rotating shaft can pass through a pair of connecting ears and be rotatably connected to the pair of support beams;

[0025] a fixed seat located between a pair of support beams;

[0026] A rotating block disposed on the rotating shaft;

[0027] The electric push rod is rotatably connected to the fixed seat and the rotating block respectively, and under the drive of the electric push rod, the rotating block can rotate along the circumference of the rotating shaft to realize the switching of the cover body between the open state and the closed state.

[0028] In some embodiments, the vacuum parallel concentrator further comprises a capping mechanism located on the front side of the housing;

[0029] Capping mechanism, including

[0030] A second driving member disposed on the bottom plate has a second driving shaft;

[0031] The pressing block is connected to the second driving shaft, and the pressing block can rotate around the rotation axis of the second driving shaft to achieve contact and separation with the cover plate.

[0032] In some embodiments, the cover plate has a drain port and an exhaust port formed on its side, an exchange port formed on its bottom, and a fluid channel formed inside thereof;

[0033] The fluid channel is communicated with the liquid discharge port and the exchange port respectively, so that the cover plate forms a liquid discharge loop. The fluid channel is communicated with the air discharge port and the exchange port respectively, so that the cover plate forms an air discharge loop.

[0034] In some embodiments, the vacuum parallel concentrator further comprises a condensation mechanism connected to the liquid discharge port;

[0035] Condensation mechanism, including

[0036] Condenser;

[0037] a flask located below the condenser and connected to the condenser;

[0038] Bracket for holding condenser and flask.

[0039] In some embodiments, a boss is provided at the bottom of the cover plate, and the exchange port is formed in the middle of the boss;

[0040] The concentration box also includes a heating plate located in the box body and a first detection member arranged on the side wall of the heating plate. The heating plate is provided with a receiving groove corresponding to the boss.

[0041] In some embodiments, the vacuum parallel concentrator further includes a vacuum valve connected to the exhaust port.

[0042] In some embodiments, the shaking mechanism also includes a sensing member arranged on the swing block and a second detection member arranged on the mounting plate. The second detection member is provided with a detection slot. During the rotation of the swing block around the rotation axis of the first drive shaft, the sensing member can pass through the detection slot to trigger the second detection member.

[0043] Due to the adoption of the above technical solution, the technical effects achieved by the present invention are as follows:

[0044] The vacuum parallel concentrator provided by the present invention includes a base, a concentration tank and a shaking mechanism. A guide member and a mounting plate are provided on the top of the base, a sliding member and a mounting seat are provided on the bottom of the concentration tank, and the shaking mechanism includes a first driving member and a connecting rod assembly. Specifically, a swing block is provided on the first driving shaft of the first driving member. Through the rotational connection between the connecting rod assembly, the swing block and the mounting seat, the swing block can rotate along the rotation axis of the first driving shaft under the drive of the first driving member, thereby driving one end of the connecting rod assembly to rotate along the first axis, and then the connecting rod assembly transmits the rotation to the other end, so that the other end of the connecting rod assembly can rotate along the second axis, and finally realizes the relative rotation between the mounting seat and the connecting rod assembly. Thus, through the transmission of the above-mentioned swing block, connecting rod assembly and mounting seat, the shaking of the concentration tank can be realized. Moreover, through the cooperation between the guide and the sliding part, the shaking amplitude and shaking direction of the concentration box can be limited. Compared with the existing eccentric wheel shaking mechanism, the present application can not only achieve gentle oscillation of the liquid sample, but also meet the different oscillation requirements of users by reasonably configuring the oscillation amplitude of the concentration box, thereby greatly expanding the application scenarios of the equipment. At the same time, it is also beneficial to ensure that the equipment has a better shaking effect in different scenarios, thereby improving the equipment's concentration processing efficiency for liquid samples.

[0045] The above description is only an overview of the technical solution of the embodiment of the utility model. In order to more clearly understand the technical means of the embodiment of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the utility model more obvious and easy to understand, the specific implementation method of the utility model is specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0047] Figure 1 This is a structural diagram of a vacuum parallel concentrator provided by the utility model;

[0048] Figure 2 This is a structural diagram of another vacuum parallel concentrator provided by the utility model;

[0049] Figure 3 The utility model provides Figure 2 A magnified schematic diagram of part A;

[0050] Figure 4 This is a structural diagram of another vacuum parallel concentrator provided by the utility model;

[0051] Figure 5 This is a structural diagram of a concentration box provided by the utility model;

[0052] Figure 6 This is a structural diagram of another vacuum parallel concentrator provided by the utility model;

[0053] Figure 7 It is a structural schematic diagram of another concentration box provided by the utility model.

[0054] In the picture:

[0055] 100 base, 110 guide, 120 mounting plate;

[0056] 200 concentration box, 210 sliding member, 220 mounting seat, 230 bottom plate, 240 box body, 250 cover body, 251 cover plate, 252 connecting ear, 253 rotating shaft, 254 drain port, 255 exhaust port, 256 exchange port, 260 cover opening mechanism, 261 support beam, 262 fixing seat, 263 rotating block, 264 electric push rod, 270 cover pressing mechanism, 271 second driving member, 272 pressing block, 280 condensation mechanism, 281 condenser tube, 282 flask, 283 bracket, 290 heating plate, 291 first detection member;

[0057] 300 shaking mechanism, 310 first driving member, 311 first driving shaft, 312 swing block, 320 connecting rod assembly, 321 first rotating sleeve, 322 second rotating sleeve, 323 adjusting screw, 330 sensing member, 331 second detecting member. DETAILED DESCRIPTION

[0058] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the accompanying drawings show exemplary embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0059] Reference Figure 1-Figure 3As shown, an embodiment of the present invention provides a vacuum parallel concentrator, comprising a base 100, a concentrator tank 200, and a shaking mechanism 300. A guide member 110 and a mounting plate 120 are provided on the top of the base 100. The concentrator tank 200 is located above the base 100, and a sliding member 210 is provided at the bottom of the concentrator tank 200, which cooperates with the guide member 110, and a mounting seat 220 is provided on the side. In addition, the shaking mechanism 300 includes a first driving member 310 and a connecting rod assembly 320. The first driving member 310 is arranged on the mounting plate 120, and the first driving member 310 has a first driving shaft 311 and a swing block 312 connected to the first driving shaft 311; one end of the connecting rod assembly 320 is rotatably connected to the swing block 312, and the other end is rotatably connected to the mounting base 220, so that the two ends of the connecting rod assembly 320 are respectively formed with a first axis (not marked in the figure) and a second axis (not marked in the figure), and the first axis is parallel to the rotation axis of the first driving shaft 311, and the second axis is perpendicular to the extension direction of the guide member 110.

[0060] It should be noted that the relative movement between the concentration tank 200 and the base 100 is achieved through the cooperation between the guide member 110 and the sliding member 210. First, regarding the specific structure of the guide member 110 and the sliding member 210, the present application can have a variety of different implementations. For example, the guide member 110 can be a guide rail, and the sliding member 210 can be a slider; or, the guide member 110 can be a guide groove, and the sliding member 210 can be a slide, etc. Secondly, regarding the setting method of the guide member 110 and the sliding member 210, the present application can also have a variety of different implementations. For example, when the guide member 110 is a guide rail, the extension direction of the guide rail can be parallel to the length direction of the base 100, or the extension direction of the guide rail can be parallel to the width direction of the base 100. Finally, regarding the number of guide members 110 and sliders 210, this application also allows for various implementations. For example, when the guide member 110 is a guide rail and the slider 210 is a slider, the guide rail can be one, two, or three, etc.; accordingly, the number of sliders can be one, two, or three, etc. This application does not limit the specific structure, arrangement, or number of the guide members 110 and sliders 210.

[0061] In addition, the mounting plate 120 provided on the base 100 is primarily used to secure the first drive member 310. This application does not specify the specific structure of the mounting plate 120; that is, the mounting plate 120 may be a rectangular plate, a square plate, or a trapezoidal plate, etc. The first drive member 310 may also be of various types, such as a drive motor, a hydraulic pump, a pneumatic pump, etc., and this application does not specify this either. When the first drive member 310 is a drive motor, the output shaft of the drive motor is the first drive shaft 311 of the first drive member 310, and the first drive shaft 311 and the swing block 312 may be detachably connected by pins, nuts, etc., or may be fixedly connected by welding, integral molding, etc. This application does not specify the connection method between the first drive shaft 311 and the swing block 312.

[0062] It should be noted that in order to enable the concentration tank 200 to shake under the drive of the shaking mechanism 300, the first axis and the second axis are both perpendicular to the extension direction of the guide member 110, and by adjusting the distance between the first axis and the rotation axis of the first drive shaft 311, the oscillation amplitude of the shaking mechanism 300 can also be adjusted.

[0063] The vacuum parallel concentrator provided by the present invention utilizes a rotational connection between the connecting rod assembly 320, the swing block 312, and the mounting base 220. This allows the swing block 312, driven by the first driving member 310, to rotate along the rotation axis of the first drive shaft 311, thereby driving one end of the connecting rod assembly 320 to rotate along the first axis. The connecting rod assembly 320 then transmits this rotation to the other end, allowing the other end of the connecting rod assembly 320 to rotate along the second axis, ultimately achieving relative rotation between the mounting base 220 and the connecting rod assembly 320. Thus, through the transmission of the swing block 312, the connecting rod assembly 320, and the mounting base 220, the concentrator tank 200 can be shaken. Moreover, through the cooperation between the guide and the sliding member 210, the shaking amplitude and shaking direction of the concentration box 200 can be limited. Compared with the existing eccentric wheel shaking mechanism 300, the present application can not only achieve gentle oscillation of the liquid sample, but also meet the different oscillation requirements of the user by reasonably configuring the oscillation amplitude of the concentration box 200, thereby greatly expanding the application scenarios of the equipment. At the same time, it is also beneficial to ensure that the equipment has a better shaking effect in different scenarios, thereby improving the concentration processing efficiency of the equipment for liquid samples.

[0064] During the rotation of the connecting rod assembly 320, in order to avoid interference between the relative motion of the connecting rod assembly 320, the swing block 312, and the mounting base 220, when the mounting base 220 is fixed on the base 100, the connecting rod assembly 320 can be configured as a component with a telescopic function to ensure the stability of the movement of the connecting rod assembly 320. Regarding the specific implementation of the telescopic function of the connecting rod assembly 320, the present application can have a variety of different implementations. For example, the connecting rod assembly 320 can be configured as a telescopic sleeve structure, or the connecting rod assembly 320 can be made of an elastic rod.

[0065] Preferably, continue to refer to Figure 3 As shown, the connecting rod assembly 320 may include a first rotating sleeve 321, a second rotating sleeve 322, and an adjusting screw 323. The first rotating sleeve 321 is rotatably connected to the swing block 312 and defines a first assembly hole (not shown in the figure); the second rotating sleeve 322 is rotatably connected to the mounting base 220 and defines a second assembly hole (not shown in the figure); the ends of the adjusting screw 323 respectively engage with the first assembly hole and the second assembly hole, and the adjusting screw 323 can slide in the first assembly hole and the second assembly hole, so that the connecting rod assembly 320 can extend and retract along the axial direction of the adjusting screw 323.

[0066] It should be noted that in order to prevent the adjusting screw 323 from falling out of the first rotating sleeve 321 or the second rotating sleeve 322 during movement, optionally, the end of the adjusting screw 323 can be provided with an anti-slip ring, and the inner walls of the first assembly hole and the second assembly hole can be provided with a stop flange that cooperates with the anti-slip ring stop.

[0067] In some embodiments, continue to refer to Figure 1 and Figure 2 As shown, the concentrate tank 200 includes a base plate 230, a housing 240, a lid 250, and a lid-opening mechanism 260. The housing 240 is mounted on the base plate 230 and defines a working chamber (not shown). The lid 250 is compatible with the housing 240, and the lid-opening mechanism 260 is located at the rear of the housing 240. The lid-opening mechanism 260 is connected to both the base plate 230 and the lid 250, respectively. It has a closed state, in which the lid 250 seals the working chamber, and an open state, in which the lid 250 opens the working chamber. The lid-opening mechanism 260 enables automatic opening and closing of the concentrate tank 200, thereby enhancing the automation and intelligence of the equipment and improving the user experience.

[0068] Further, refer to Figure 2As shown, the cover body 250 includes a cover plate 251, a pair of connecting ears 252 disposed on the edge of the cover plate 251, and a rotating shaft 253 respectively connected to the pair of connecting ears 252. The cover opening mechanism 260 includes a pair of support beams 261, a fixed seat 262, a rotating block 263, and an electric push rod 264. The pair of support beams 261 are disposed on the bottom plate 230, and the ends of the rotating shaft 253 can respectively pass through the pair of connecting ears 252 and be rotatably connected to the pair of support beams 261; the fixed seat 262 is located between the pair of support beams 261, and the rotating block 263 is disposed on the rotating shaft 253; the electric push rod 264 is rotatably connected to the fixed seat 262 and the rotating block 263, and under the drive of the electric push rod 264, the rotating block 263 can rotate along the circumference of the rotating shaft 253 to realize the switching of the cover body 250 between the open state and the closed state.

[0069] The electric push rod 264, also known as a linear drive, is a linear actuator mainly composed of a motor, a push rod and a control device. It can move back and forth within a certain range of travel and is divided into many different types, such as a worm gear electric push rod 264, a gear type electric push rod 264, and a screw type electric push rod 264.

[0070] For ease of understanding, the following briefly describes the automatic opening and closing process of the concentrate tank 200:

[0071] When the concentrate tank 200 needs to be opened, the electric push rod 264 starts to operate. The push rod inside it begins to retract under the drive of the motor, thereby causing the rotating block 263 to rotate clockwise. At the same time, the rotating shaft 253 and the connecting ear 252 rotate clockwise relative to the support beam 261 as the rotating block 263 rotates, separating the cover 250 from the tank 240, thus completing the automatic opening of the concentrate tank 200. When the concentrate tank 200 needs to be closed, the electric push rod 264 starts to operate. The push rod inside it begins to extend under the drive of the motor, thereby causing the rotating block 263 to rotate counterclockwise. At the same time, the rotating shaft 253 and the connecting ear 252 rotate counterclockwise relative to the support beam 261 as the rotating block 263 rotates, bringing the cover 250 into contact with the tank 240, thus completing the automatic closing of the concentrate tank 200.

[0072] In some embodiments, reference Figure 4 As shown, the vacuum parallel concentrator also includes a capping mechanism 270 located on the front side of the housing 240. Specifically, the capping mechanism 270 includes a second driving member 271 and a pressing block 272. The second driving member 271 is disposed on the base plate 230 and has a second driving shaft (not labeled in the figure). The pressing block 272 is connected to the second driving shaft and can rotate about the rotation axis of the second driving shaft to achieve contact and separation with the cover plate 251. The second driving member 271 can be a drive motor, a hydraulic pump, a pneumatic pump, etc.

[0073] The provision of the capping mechanism 270 ensures closer contact between the lid 250 and the housing 240 when the concentration tank 200 is closed, improving the sealing of the concentration tank 200. This helps ensure temperature consistency across the various concentration stations within the housing 240, thereby ensuring a high degree of parallelism during the liquid sample concentration process. The well-sealed concentration tank 200 significantly improves the uniformity of the heating process within the housing 240, enabling large batches of liquid samples to be concentrated simultaneously without interference, thereby improving both concentration efficiency and accuracy.

[0074] It is understood that the present application may include one capping mechanism 270, which is disposed in the middle of the bottom plate 230, corresponding to the middle of the box body 240. Alternatively, there may be two capping mechanisms 270, which are disposed at both ends of the bottom plate 230, corresponding to the sides of the box body 240. The present application does not limit the number of capping mechanisms 270. The provision of multiple capping mechanisms 270 can further improve the sealing performance between the box body 240 and the cover body 250, thereby enhancing the concentration effect of the device.

[0075] It should also be noted that, in addition to being able to rotate about the rotation axis of the second drive shaft under the drive of the second drive member 271, the pressing block 272 in the capping mechanism 270 can also move up and down along the axial direction of the second drive shaft, thereby enabling the capping mechanism 270 to better adapt to the structure of the cover body 250 and the box body 240, making the capping process of the capping mechanism 270 smoother. Compared to a method in which the pressing block 272 can only rotate, this structure of the capping mechanism 270 can greatly avoid interference between the pressing block 272 and the cover body 250 during rotation, thereby ensuring the stability of the capping mechanism 270 during operation.

[0076] In some embodiments, continue to refer to Figure 2 As shown, the cover plate 251 has a liquid discharge port 254 and an exhaust port 255 formed on its side, an exchange port 256 formed on its bottom, and a fluid channel (not shown) formed therein. The fluid channel is respectively connected to the liquid discharge port 254 and the exchange port 256, so that the cover plate 251 forms a liquid discharge circuit, and the fluid channel is respectively connected to the exhaust port 255 and the exchange port 256, so that the cover plate 251 forms an exhaust circuit. The liquid discharge circuit is used to transport volatilized samples, and the exhaust circuit is used to transport air during the vacuuming process.

[0077] Further, refer to Figure 6As shown, the vacuum parallel concentrator further includes a condensing mechanism 280. The condensing mechanism 280 includes a condensing tube 281, a flask 282, and a bracket 283. The condensing tube 281 is connected to the drain port 254. The flask 282 is located below the condensing tube 281 and is connected to the condensing tube 281. The bracket 283 is used to fix the condensing tube 281 and the flask 282.

[0078] In addition, refer to Figure 5 and Figure 7 As shown, a boss (not marked in the figure) is provided at the bottom of the cover 251, and the exchange port 256 is formed in the middle of the boss; the concentration tank 200 also includes a heating plate 290 located in the tank body 240 and a first detection member 291 provided on the side wall of the heating plate 290, and the heating plate 290 is provided with a receiving groove (not marked in the figure) corresponding to the boss.

[0079] The receiving groove is used to hold external containers, such as test tubes, centrifuge tubes, and sample tubes. Furthermore, since the top of the container is open, to enhance the sealing performance of the concentration tank 200, a boss is provided on the bottom of the lid 250. This boss mates with the top opening of the container, thereby sealing the container opening and minimizing the evaporation of the liquid sample outside the concentration tank 200, thereby improving concentration efficiency and accuracy. The specific structure of the boss can be adapted to the shape and structure of the container, and this application does not impose any restrictions thereon.

[0080] It should be noted that, since the specifications and shapes of the external container vary, the sizes and shapes of the receiving grooves provided on the heating plate 290 can also vary accordingly, so that the receiving grooves can be adapted to different containers. For example, when the container is a test tube with a diameter of 5 cm, the receiving groove can be a circular groove with a diameter of 7 cm.

[0081] The first detection member 291 is mainly used to detect whether there is a sample in the storage tank, so that the device can determine whether it is necessary to control the operation of the heating plate 290. Optionally, the first detection member 291 can be a through-beam sensor. When there is no container in the storage tank, or there is a container in the storage tank but the container does not contain a liquid sample, the transmitting end of the through-beam sensor sends a light signal, and the receiving end of the through-beam sensor can receive a light signal with consistent light intensity, indicating that there is no liquid sample in the storage tank; when there is a liquid sample in the storage tank, the transmitting end of the through-beam sensor sends a light signal, and the receiving end of the through-beam sensor receives a light signal with inconsistent light intensity, indicating that there is a liquid sample in the storage tank.

[0082] Furthermore, the vacuum parallel concentrator includes a vacuum valve (not shown) connected to the exhaust port 255. The vacuum valve can be set to suck the air inside the box 240 to the outside, thereby forming a low-pressure environment inside the box 240, which is conducive to the smooth progress of the equipment concentration process.

[0083] In some embodiments, continue to refer to Figure 3 As shown, the shaking mechanism 300 also includes a sensing member 330 arranged on the swing block 312 and a second detection member 331 arranged on the mounting plate 120. The second detection member 331 is provided with a detection slot (not marked in the figure). During the rotation of the swing block 312 around the rotation axis of the first drive shaft 311, the sensing member 330 can pass through the detection slot to trigger the second detection member 331.

[0084] The sensing member 330 may be a baffle, and the second detecting member 331 is used to measure the number of rotations of the swing block 312. By transmitting the measured number of rotations to a controller in the device, the controller can adjust the speed and frequency of the first driving member 310, thereby adjusting the operating time and operating frequency of the shaking mechanism 300. Optionally, the second detecting member 331 may also be a through-beam sensor.

[0085] When the vacuum parallel concentrator is actually working, its working process is roughly as follows:

[0086] First, the lid 250 is separated from the box 240 under the drive of the lid opening mechanism 260. The user places a prepared container containing a liquid sample (such as a test tube) into the receiving groove in the heating plate 290. The first detection member 291 detects the presence of a liquid sample in the receiving groove and sends a detection signal to the controller. The lid opening mechanism 260 then drives the lid 250 to contact the box 240 under the control of the controller. When the lid is closed, the pressing block 272, driven by the second driving member 271, presses against the lid 250 to achieve a seal between the lid 250 and the box 240. Then, the vacuum valve starts to operate and extracts the air inside the box 240 to the outside through the exchange port 256, the fluid channel, and the exhaust port 255, thereby forming a low-pressure or vacuum environment inside the box 240. Next, the heating plate 290 begins operating to heat and evaporate the liquid sample in the container. Simultaneously, the shaking mechanism 300 also begins operating, with the swing block 312 rotating under the drive of the first driving member 310. The connecting rod assembly 320 is used to transmit the driving force of the swing block 312 to the mounting base 220, thereby enabling the concentrator tank 200 to reciprocate along the extension direction of the guide member 110, thereby achieving a shaking and oscillating operation of the concentrator tank 200. During the shaking and heating process, the liquid sample in the container continuously evaporates into gas. This evaporated gas then enters the condenser 281 through the exchange port 256, the fluid channel, and the drain port 254. Under the condensation effect of the condenser 281, the volatile gas is converted back into liquid and enters the flask 282. The liquid sample entering the flask 282 is the concentrated sample.

[0087] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to streamline the present invention and facilitate understanding of one or more of the various aspects of the present invention, in the above description of exemplary embodiments of the present invention, various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. The claims that follow the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present invention.

[0088] It should be noted that the above embodiments illustrate rather than limit the present invention, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments should not be understood as limiting the order of execution unless otherwise specified.

Claims

1. A vacuum parallel concentrator, characterized in that: include: A base, with a guide member and a mounting plate provided on the top; A concentration tank located above the base has a bottom provided with a sliding member that cooperates with the guide member and a side provided with a mounting seat; Shaking mechanism, including a first driving member provided on the mounting plate, comprising a first driving shaft and a swing block connected to the first driving shaft; A connecting rod assembly, one end of which is rotatably connected to the swing block, and the other end of which is rotatably connected to the mounting base, so that a first axis and a second axis are formed at both ends of the connecting rod assembly, respectively, wherein the first axis is parallel to the rotation axis of the first drive shaft, and the second axis is perpendicular to the extension direction of the guide member.

2. The vacuum parallel concentrator according to claim 1, characterized in that: The connecting rod assembly comprises: A first rotating sleeve rotatably connected to the swing block is provided with a first assembly hole; A second rotating sleeve rotatably connected to the mounting seat and having a second assembly hole; The adjusting screw has two ends respectively matched with the first assembly hole and the second assembly hole, and the adjusting screw can slide in the first assembly hole and the second assembly hole, so that the connecting rod assembly can be extended and retracted along the axial direction of the adjusting screw.

3. The vacuum parallel concentrator according to claim 1, characterized in that: The concentration tank comprises: base plate; The box body is arranged on the bottom plate and has a working chamber; a cover body matching the box body; The cover opening mechanism is located at the rear side of the box body and is connected to the bottom plate and the cover body respectively, and has a closed state in which the cover body seals the working cavity, and an open state in which the cover body opens the working cavity.

4. The vacuum parallel concentrator according to claim 3, characterized in that: The cover body includes a cover plate and a pair of connecting ears arranged on the edge of the cover plate, and a rotating shaft respectively connected to the pair of connecting ears; The cover opening mechanism includes A pair of support beams are provided on the bottom plate, and both ends of the rotating shaft can pass through a pair of connecting ears and be rotatably connected to the pair of support beams; a fixing seat located between the pair of support beams; A rotating block provided on the rotating shaft; An electric push rod is rotatably connected to the fixing seat and the rotating block respectively, and under the drive of the electric push rod, the rotating block can rotate along the circumference of the rotating shaft to realize the switching of the cover body between the open state and the closed state.

5. The vacuum parallel concentrator according to claim 4, characterized in that: The vacuum parallel concentrator further comprises a cover mechanism located at the front side of the box body; The capping mechanism includes A second driving member disposed on the bottom plate, having a second driving shaft; A pressing block connected to the second driving shaft can rotate around the rotation axis of the second driving shaft to achieve contact and separation with the cover plate.

6. The vacuum parallel concentrator according to claim 4, characterized in that: The cover plate has a liquid discharge port and an air discharge port formed on its side, an exchange port formed on its bottom, and a fluid channel formed inside thereof; The fluid channel is respectively communicated with the drain port and the exchange port so that the cover plate forms a drain circuit. The fluid channel is respectively communicated with the exhaust port and the exchange port so that the cover plate forms an exhaust circuit.

7. The vacuum parallel concentrator according to claim 6, characterized in that: The vacuum parallel concentrator further includes a condensation mechanism connected to the liquid discharge port; The condensing mechanism includes Condenser; a flask located below the condenser and connected to the condenser; A bracket is used to fix the condenser and the flask.

8. The vacuum parallel concentrator according to claim 6, characterized in that: A boss is provided at the bottom of the cover plate, and the exchange port is formed in the middle of the boss; The concentration box further includes a heating plate located in the box body and a first detection member arranged on a side wall of the heating plate. The heating plate is provided with a receiving groove corresponding to the boss.

9. The vacuum parallel concentrator according to claim 6, characterized in that: The vacuum parallel concentrator further includes a vacuum valve connected to the exhaust port.

10. The vacuum parallel concentrator according to claim 1, characterized in that: The shaking mechanism also includes a sensing member arranged on the swing block and a second detection member arranged on the mounting plate. The second detection member is provided with a detection slot. During the rotation of the swing block around the rotation axis of the first drive shaft, the sensing member can pass through the detection slot to trigger the second detection member.

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