Analyzer reagent quick change device

Abstract

The utility model relates to analytical instrument accessory technical field discloses analysis instrument reagent quick replacement device, including analysis equipment, replacement mechanism, conversion seat and drive mechanism, and replacement mechanism includes layered frame, reagent frame, guide rod and lift seat, and drive mechanism includes motor, transmission gear, transmission sprocket, electric push rod and electromagnet, and the lift tooth is fixed on lift seat, and the iron block is fixed on conversion seat, and motor drive transmission gear drives transmission sprocket to rotate, and transmission sprocket is engaged with lift tooth to drive lift seat vertical motion along guide rod, and electric push rod drives electromagnet to adsorb iron block, and the conversion seat of bearing reagent frame is transferred horizontally between layered frame and lift seat. The utility model discloses an automatic structure, solves the problem that reagent replacement relies on manual, and the efficiency is low and can make a mistake in the prior art, reaches the technical effect that the replacement process is fully automatic, positioning is accurate, and switching is quick, thereby significantly improve the technical effect of analysis efficiency.

Description

Technical Field

[0001] This utility model relates to the field of analytical instrument accessories technology, and in particular to a rapid reagent replacement device for analytical instruments. Background Technology

[0002] Analyzers, especially automated analytical devices widely used in medical testing, environmental monitoring, and scientific research, require the consumption of various chemical reagents to complete specific detection and analysis processes.

[0003] As the analysis continues, the reagents inside the analyzer will be depleted, requiring timely replacement. In current technology, the reagent replacement process is performed manually by the operator. The specific operation includes opening the analysis equipment, taking out the used reagent racks and reagent bottles from the storage location, and then manually placing the new reagent racks and reagent bottles into the designated working position.

[0004] This fully manual operation method has obvious shortcomings. The manual replacement process is cumbersome and time-consuming. Especially for high-throughput analyzers that require frequent replacement of multiple reagents, this operation will frequently interrupt the continuous operation of the equipment, thus significantly reducing the overall detection efficiency.

[0005] Manual operation carries a high risk of error. Operators may accidentally pick up the wrong reagents or put them in the wrong place due to negligence, or unintentionally contaminate the reagents during the operation. These mistakes will not only lead to serious deviations in the analysis results, but also waste valuable samples and reagents, affecting the reliability and accuracy of the test results.

[0006] The existing manual reagent replacement methods are insufficient in terms of automation, replacement efficiency, and operational accuracy to meet the demands of modern laboratories for high-throughput and high-precision analysis, thus becoming a bottleneck restricting the overall performance improvement of analyzers.

[0007] Therefore, this invention proposes a rapid reagent replacement device for analyzers to address the shortcomings of existing technologies. Utility Model Content

[0008] In view of the problems in the existing technology where reagent replacement of analyzers relies on manual operation, resulting in low replacement efficiency, long time consumption and errors, this utility model aims to provide an analyzer reagent rapid replacement device with an improved structure that can effectively solve the above problems.

[0009] This utility model provides a rapid reagent replacement device for an analyzer, comprising: an analytical device, a replacement mechanism, a conversion seat for supporting the reagent rack, and a drive mechanism; the replacement mechanism includes a tiered rack, a reagent rack, a guide rod, a lifting seat sleeved on the guide rod, and lifting teeth fixed on the lifting seat, all installed inside the analytical device; the drive mechanism includes a motor, a support shaft, a transmission gear, a transmission gear chain, an electric actuator, and an electromagnet; an iron block is fixed on the conversion seat, wherein the motor drives the transmission gear chain to rotate through the support shaft and the transmission gear, and the transmission gear chain meshes with the lifting teeth to drive the lifting seat to move vertically along the guide rod, while the electric actuator drives the electromagnet to attract the iron block fixed on the conversion seat, thereby realizing the horizontal transfer of the conversion seat between the tiered rack and the lifting seat.

[0010] Preferably, the replacement mechanism further includes a limiting block, which is installed at the end of the slot of the lifting seat to limit the stop position of the conversion seat on the lifting seat.

[0011] Preferably, grooves are provided on the layers of the tiered rack and on the top of the lifting seat, and the conversion seat is mounted in the grooves.

[0012] Preferably, the motor is fixed to the front right end of the analysis device, and the output end of the motor passes through the outer wall of the analysis device and is connected to the bottom support shaft.

[0013] Preferably, the internal left side of the analytical device has two pivot shafts.

[0014] Preferably, two transmission gears are installed on each of the two support shafts, and two sets of transmission gear chains mesh on the outer side of the transmission gears.

[0015] Preferably, the electric actuator is horizontally installed on the left side of the analytical device, and the left fixed end of the electric actuator is fixed to the left side of the analytical device.

[0016] Preferably, the tiered rack has multiple tiers, and the electric actuators and electromagnets are located on the left side of the analytical device, with multiple sets corresponding to the tier height of the rack.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model achieves vertical alignment by setting a motor-driven lifting seat and using an electric push rod to drive an electromagnet to perform horizontal transfer between the layered frame and the lifting seat. This realizes the coordinated operation of the vertical lifting mechanism and the horizontal transfer mechanism, solving the problems of manual operation, cumbersome process, and time and labor consumption in the existing technology for reagent replacement. It achieves fully automatic and rapid reagent switching and docking, significantly improving the working efficiency of the analyzer.

[0019] 2. This utility model uses a tiered rack to store multiple reagent racks in a three-dimensional manner, and uses a guide rod to guide the lifting seat for vertical positioning. Then, an electric push rod and an electromagnet are used to accurately grasp and push the conversion seat. This solves the problems of positioning deviation, reagent misplacement and contamination that occur when manually changing reagents in the prior art. It achieves the technical effects of automating the reagent changing process, ensuring accurate and reliable positioning, and enabling compact storage. Attached Figure Description

[0020] Figure 1 This is a perspective view of the analyzer reagent quick-change device proposed in this utility model;

[0021] Figure 2 This is a front view of the analyzer reagent quick-change device proposed in this utility model;

[0022] Figure 3 This is an exploded view of the lifting seat in the analyzer reagent quick change device proposed in this utility model;

[0023] Figure 4 This is a cross-sectional view of the analytical equipment in the rapid reagent replacement device of the analyzer proposed in this utility model.

[0024] Legend:

[0025] 1. Analytical equipment; 2. Converter; 3. Replacement mechanism; 31. Reagent rack; 32. Layer rack; 33. Limiting block; 34. Lifting seat; 35. Lifting gear; 36. Guide rod; 4. Drive mechanism; 41. Motor; 42. Support shaft; 43. Transmission gear; 44. Transmission chain; 45. Electric actuator; 46. Electromagnet; 47. Iron block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example:

[0028] Please refer to Figure 1 and Figure 2As shown, the analyzer reagent quick-change device includes an analyzer device 1, which forms the overall frame and housing of the device. The replacement mechanism 3 and the drive mechanism 4 are both housed and installed within the internal space of the analyzer device 1. The analyzer reagent quick-change device also includes a conversion seat 2 for supporting the reagent rack 31. The replacement mechanism 3 is used to construct a mechanical platform for reagent storage and vertical movement. The drive mechanism 4 provides power for the movement of the replacement mechanism 3 and the transfer of the conversion seat 2. Specifically, refer to... Figure 4 The replacement mechanism 3 includes a layered rack 32 installed on the left side inside the analytical device 1. The layered rack 32 has multiple layers for three-dimensional storage of multiple reagent racks 31 loaded with reagents. The reagent racks 31 are placed on the conversion seat 2, and the conversion seat 2 is stored on the corresponding layer of the layered rack 32. Figure 1 and Figure 3 The replacement mechanism 3 also includes a vertically arranged guide rod 36, which is vertically fixed to the bottom inner side of the analyzer 1. The guide rod 36 is used to provide stable guidance for the lifting and lowering movement. The replacement mechanism 3 also includes a lifting seat 34, which is sleeved on the guide rod 36 through an internal through hole, so that the lifting seat 34 can slide smoothly up and down along the axial direction of the guide rod 36. The replacement mechanism 3 also includes a lifting tooth 35 fixed to the right side of the lifting seat 34. The lifting tooth 35 is used to mesh with the transmission part of the drive mechanism 4 to receive vertical driving force. The drive mechanism 4 includes a vertical drive assembly and a horizontal drive assembly. The vertical drive assembly includes a motor 41, a support shaft 42, a transmission gear 43, and a transmission chain 44. The horizontal drive assembly includes an electric push rod 45 and an electromagnet 46. The analyzer reagent quick replacement device also includes an iron block 47, which is fixed to the left side of the conversion seat 2 and is used to be attracted by the electromagnet 46.

[0029] Please refer to Figure 1 , Figure 2 and Figure 4 The vertical drive assembly includes a motor 41, a support shaft 42, transmission gears 43, and a transmission chain 44. The motor 41 is fixed to the front right end of the analyzer 1. The output end of the motor 41 passes through the outer wall of the analyzer 1 and is connected to the support shaft 42 at the bottom. Two support shafts 42 are rotatably connected to the inside left side of the analyzer 1 via bearings. Each support shaft 42 is equipped with two transmission gears 43. Two sets of transmission chains 44 mesh with the outer sides of the corresponding upper and lower transmission gears 43. When the motor 41 drives the bottom support shaft 42 to rotate, the bottom support shaft 42 drives the upper support shaft 42 to rotate synchronously through the transmission chain 44. The tooth profile of the lifting gear 35 in the changing mechanism 3 is adapted to the link of the transmission chain 44. The lifting gear 35 meshes with the transmission chain 44. When the transmission chain 44 rotates, it drives the lifting gear 35 through the meshing relationship, driving the lifting seat 34 to slide stably up and down along the guide rod 36, converting the rotational motion of the motor 41 into the precise vertical linear motion of the lifting seat 34. Please refer to [reference needed]. Figure 1 and Figure 4 The following is a detailed description of the horizontal drive assembly of the drive mechanism 4. The horizontal drive assembly includes an electric actuator 45 and an electromagnet 46. Preferably, the layered rack 32 has multiple layers. The electric actuator 45 and the electromagnet 46 are located on the left side of the analysis device 1. Multiple sets of electric actuators 45 are set according to the layer height of the layered rack 32. Each set of electric actuators 45 is horizontally installed on the left side of the analysis device 1. The left fixed end of the electric actuator 45 is fixed to the left inner wall of the analysis device 1, and the right telescopic end of the electric actuator 45 is fixed with an electromagnet 46. The iron block 47 fixed on the left side of the aforementioned conversion seat 2 has an installation position corresponding to the working position of the electromagnet 46. By extending and retracting the electric actuator 45, the electromagnet 46 is switched on and off to attract or release the iron block 47, thereby realizing the grasping and pushing action of horizontally transferring the conversion seat 2 between the layered rack 32 and the lifting seat 34.

[0030] As a preferred embodiment, please refer to Figure 3 In order to limit the stopping position of the conversion seat 2 on the lifting seat 34 and prevent the conversion seat 2 from being excessively displaced during horizontal transfer, the replacement mechanism 3 also includes a limiting block 33, which is installed at the end of the slot of the lifting seat 34 by bolts.

[0031] As another preferred embodiment, please refer to Figure 3 and Figure 4 To ensure the stability of the conversion seat 2 and the smooth docking, grooves are provided on each layer of the layered rack 32 and the top of the lifting seat 34. The bottom shape of the conversion seat 2 is adapted to the grooves. When stored, the conversion seat 2 is placed in the groove of the layered rack 32, and after being transferred, it is placed in the groove on the top of the lifting seat 34.

[0032] As another preferred embodiment, please refer to Figure 1 and Figure 2 In order to rationally arrange the power source and effectively transmit power, the motor 41 is fixed at the front right end of the analysis device 1. The output end of the motor 41 passes through the outer wall of the analysis device 1 and is fixedly connected to one end of the support shaft 42 located at the bottom.

[0033] As another preferred embodiment, please refer to Figure 1 and Figure 4 In order to construct a stable and reliable vertical drive transmission chain, the left side of the internal structure of the analysis device 1 is connected by two support shafts 42 through bearings to form a vertically parallel layout. Each of the two support shafts 42 is equipped with two transmission gears 43, so that there are transmission gears 43 on both the left and right sides of each support shaft 42. Correspondingly, two sets of transmission gear chains 44 are respectively meshed on the outside of the transmission gears 43 on the same side, forming a dual-side synchronous drive, which improves the stability of the lifting seat 34 during the lifting process.

[0034] As another preferred embodiment, please refer to Figure 1 and Figure 4 To achieve precise grasping of reagents at different levels, the electric actuator 45 is horizontally installed on the left side of the analytical device 1. The fixed end of the electric actuator 45 on the left side is firmly fixed to the inner wall of the left side of the analytical device 1. Furthermore, the layer rack 32 has multiple layers. The electric actuator 45 and electromagnet 46 are arranged in multiple sets on the left side of the analytical device 1 according to the layer height of the layer rack 32. Each set of electric actuator 45 independently corresponds to one layer, ensuring that the conversion seat 2 of any specified layer can perform an independent horizontal transfer operation.

[0035] Working principle:

[0036] First, during device installation, the guide rod 36 of the replacement mechanism 3 is vertically fixed to the bottom inner side of the analysis device 1, and the lifting seat 34 is fitted onto the guide rod 36. A layered rack 32 is fixed on the left side inside the analysis device 1. The conversion seat 2 is mounted on the layer of the layered rack 32 and in the groove at the top of the lifting seat 34. A lifting tooth 35 is fixed on the right side of the lifting seat 34. The output end of the motor 41 of the drive mechanism 4 is connected to the bottom support shaft 42. The transmission gear 43 on the two support shafts 42 meshes with the transmission chain 44. The transmission chain 44 meshes with the lifting tooth 35. The fixed end of the electric push rod 45 is fixed on the left side of the analysis device 1, and the telescopic end is fixed with an electromagnet 46. An iron block 47 is fixed on the left side of the conversion seat 2. Before changing the reagent, the reagent rack 31 with the reagent is placed on the conversion seat 2. The conversion seat 2 is placed on different layers of the layered rack 32. The iron block 47 is aligned with the electromagnet 46 of the corresponding layer.

[0037] When it is necessary to change the reagent, the first step is to align vertically. Start the motor 41. The motor 41 drives the transmission gear chain 44 to rotate through the transmission gear 43. The transmission gear chain 44 meshes with the lifting gear 35. The lifting gear 35 is driven, so that the lifting seat 34 moves up and down steadily along the guide rod 36. Adjust the groove at the top of the lifting seat 34 to be precisely level with the target reagent layer of the layer rack 32. At this time, the motor 41 stops running.

[0038] The second step is horizontal transfer and grasping. The electric push rod 45 corresponding to the target level is activated, pushing the electromagnet 46 close to the iron block 47 at the bottom of the selected conversion seat 2. The electromagnet 46 is energized, generating magnetic force to attract and fix the conversion seat 2. The electric push rod 45 retracts or extends, moving the conversion seat 2 horizontally into the top groove of the lifting seat 34. The limiting block 33 limits the position of the conversion seat 2. The electromagnet 46 is de-energized, releasing the connection to the conversion seat 2. At this time, the reagent rack 31 together with the conversion seat 2 has been reliably transferred to the lifting seat 34.

[0039] The third step is vertical delivery. The motor 41 is driven again, which drives the lifting seat 34 to continue to move upward, and smoothly pushes the reagent rack 31 on the top of the lifting seat 34 to the top working position of the analytical device 1, completing the removal and loading of the reagent rack 31 for use by the analyzer.

[0040] When it is necessary to replace another reagent rack 31, the fourth step is to return the reagents to their original positions and reposition them. The motor 41 drives in reverse to lower the lifting seat 34 so that its top is flush with the original level of the layer rack 32. At this time, the motor 41 stops running, the electric push rod 45 corresponding to the original level starts, the electromagnet 46 is energized, and the conversion seat 2 is attracted and fixed. The electric push rod 45 retracts or extends, pulling the conversion seat 2 and the reagent rack 31 back to the original position of the layer rack 32. The electromagnet 46 is de-energized, and the lifting seat 34 is now unloaded. Steps one to three can be repeated as described above to move to other levels, grab and deliver the new reagent rack 31. This realizes the automatic switching and docking of the analyzer reagent rack 31, greatly reducing the time for manual reagent replacement and achieving the purpose of rapid replacement.

Claims

1. Analyzer reagent quick change device, including: The analytical device (1) and the replacement mechanism (3) include a layered rack (32), a reagent rack (31), a vertically arranged guide rod (36), a lifting seat (34) sleeved on the guide rod (36), a conversion seat (2) for carrying the reagent rack (31), and a drive mechanism (4) installed inside the analytical device (1). Its features are, The replacement mechanism (3) also includes a lifting tooth (35) fixed to the right side of the lifting seat (34); The drive mechanism (4) includes a motor (41), a support shaft (42) installed inside the analysis device (1), a transmission gear (43) installed on the support shaft (42), and a transmission gear chain (44) meshing with the transmission gear (43). The motor (41) drives the transmission gear (43) to rotate the transmission gear chain (44), and the transmission gear chain (44) meshes with the lifting gear (35). The drive mechanism (4) also includes a horizontally mounted electric push rod (45), and an electromagnet (46) is fixed to the telescopic end of the electric push rod (45); An iron block (47) is fixed on the left side of the conversion seat (2). The electric push rod (45) is used to drive the electromagnet (46) to attract the iron block (47) so as to horizontally transfer the conversion seat (2) between the layered frame (32) and the lifting seat (34).

2. The analyzer reagent quick-change device according to claim 1, characterized in that, The replacement mechanism (3) further includes a limiting block (33), which is installed at the end of the slot of the lifting seat (34) to limit the stop position of the conversion seat (2) on the lifting seat (34).

3. The analyzer reagent quick-change device according to claim 1, characterized in that, The conversion seat (2) is mounted on the layer of the layered frame (32) and in the groove at the top of the lifting seat (34).

4. The analyzer reagent quick-change device according to claim 1, characterized in that, The motor (41) is fixed to the front right end of the analysis device (1), and the output end of the motor (41) passes through the outer wall of the analysis device (1) and is connected to the support shaft (42) at the bottom.

5. The analyzer reagent quick-change device according to claim 1, characterized in that, The analytical device (1) has two pivot shafts (42) rotatably connected to its internal left side.

6. The analyzer reagent quick-change device according to claim 5, characterized in that, Two transmission gears (43) are mounted on each of the two support shafts (42), and two sets of transmission gear chains (44) are meshed on the outer side of the transmission gears (43).

7. The analyzer reagent quick-change device according to claim 1, characterized in that, The electric actuator (45) is horizontally installed on the left side of the analysis device (1), and the left fixed end of the electric actuator (45) is fixed on the left side of the analysis device (1).

8. The analyzer reagent quick-change device according to claim 7, characterized in that, The layer rack (32) has multiple layers, and the electric push rod (45) and the electromagnet (46) are arranged on the left side of the analysis device (1) in multiple sets according to the layer height of the layer rack (32).

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