Orifice plate sampling device

Abstract

The utility model discloses a pore plate sampling device which comprises a bottom plate, a driving assembly is arranged on the bottom plate in a sliding manner, and the driving assembly comprises a driving motor, a locking module and a lifting plate; the locking module comprises a locking pin penetrating through the locking plate and the lifting plate, and a push plate arranged at the output end of the locking pin and coaxial with the locking pin. A group of pickers in one-to-one correspondence with the placement holes in the pore plate are uniformly distributed on the push plate, and the output ends of the pickers selectively penetrate through the bottom plate; the driving motor slides to correspond to any locking pin and drives the locking pin to abut against the end of the push plate, and the lifting driver drives the lifting plate, the push plate and the locking plate to move towards the bottom plate till the tail end of the picker moves into the hole plate. The device has the beneficial effects that the locking pin and the push plate on the locking module are driven by the driving motor to realize locking and unlocking functions, so that the synchronous sampling of any one or more rows of pickers is realized, the sampling operation of part of placement holes in a pore plate is realized, and the quick sampling requirement of any part of the pore plate is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of life science instruments, and particularly relates to a well plate sampling device. Background Art

[0002] With the development of technology, applied scientists use other inspection and detection instruments. During the use of these instruments, more types of consumables are required. Among them, well plates with 384 or other well positions, as a commonly used consumable, can allow users to perform detection and analysis operations with less reagent and sample. This type of well plate can save a large amount of samples for customers and thus greatly reduce the usage cost of users.

[0003] When using a well plate with 384 or other well positions, when adding samples, sampling, or using sensors, stirrers, etc. to the well plate, it is necessary to insert the device into each well of the well plate or align it with the well positions of the well plate. Currently, most of the structures adopted for such operations in the market can refer to the structures disclosed in Patent CN216155832U, "A Nucleic Acid Extraction Reagent Continuous Dispenser", or Patent CN115747025B, "An Automatic Nucleic Acid Extraction and PCR Detection Integrated Machine". The prior art including the above patents can only pick up all or pick up continuous rows when sampling the well plate, and during sampling detection, it is impossible to perform grasping or releasing operations on a certain row or several local rows thereof. Therefore, designing a well plate sampling device is an important technical problem that needs to be solved by those skilled in the art at present. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems existing in the prior art and provide a well plate sampling device.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A well plate sampling device includes a bottom plate arranged above the well plate. A driving assembly is slidably arranged on the bottom plate. The driving assembly includes driving motors symmetrically arranged outside the bottom plate, a locking module located at the output end of the driving motors, and a lifting plate for driving the locking module to move along the height direction of the bottom plate. The locking module includes a locking pin passing through a locking plate and the lifting plate, and a push plate arranged at the output end of the locking pin and coaxially with it. A group of pickers corresponding one by one to the placement holes on the well plate are evenly distributed on the push plate. The output end of the picker can selectively pass through the bottom plate. The driving motor slides to correspond to any one of the locking pins and drives the locking pin to abut against the end of the push plate. The lifting driver drives the lifting plate, the push plate, and the locking plate to move towards the bottom plate until the end of the picker moves into the well plate.

[0007] Preferably, a group of the push plates are evenly distributed on the bottom plate along the sliding direction of the driving motor, and elastic connecting pieces connected to the bottom plate are arranged at both ends of the push plate.

[0008] Preferably, the elastic connecting piece includes a plug pin and a spring; the plug pin penetrates through the push plate and is inserted into the bottom plate; the bottom end of the spring is located on the upper surface of the bottom plate.

[0009] Preferably, locking grooves are arranged at both ends of the push plate, and the openings of the locking grooves face the output ends of the locking pins; two symmetrically arranged locking pins correspond to each push plate, and each locking pin is arranged on the locking plate.

[0010] Preferably, the diameter of the input end of the locking pin is larger than the diameter of its main body; at least one end of the locking plate is provided with a driver for driving it to move along the reset direction of the driving motor, so as to unlock the locking pin and the push plate.

[0011] Preferably, the lifting plate is driven by a linear moving device; the lifting plate is arranged between the output end of the locking pin and the locking groove, and a group of through holes corresponding to the locking pins are arranged thereon.

[0012] Preferably, the lifting plate can be in a plate structure or a frame structure.

[0013] Preferably, a group of through holes are formed on the bottom plate; the maximum inner diameter of the through holes is equivalent to the main body diameter of the picker, and the minimum inner diameter of the through holes is equivalent to the probe diameter of the picker.

[0014] Preferably, a group of the driving motors are symmetrically fixed on the outer side of the bottom plate, and each driving motor corresponds to one locking pin.

[0015] The advantages of the technical solution of the present utility model are mainly reflected in:

[0016] The locking and unlocking functions are realized by driving the locking pins on the locking module and the push plates by the driving motor, so as to realize the synchronous sampling of any one row or multiple rows of pickers, realize the sampling operation of partial placement holes on the orifice plate, and meet the requirement of quickly sampling any local part of the orifice plate;

[0017] By automatically moving the locking pins into the locking grooves at both ends of the push plates or moving the locking pins out of the locking grooves, the locking and unlocking of the locking pins, the push plates and the lifting plates are realized, so as to control the synchronous lifting of any one row or multiple rows of pickers. The structure is simple, the response speed is fast and the manufacturing cost is low;

[0018] Springs are arranged between the push plate and the bottom plate and between the picker and the push plate, which play a buffering role during the moving process, reduce the contact area between the two, and further reduce the wear between the two. Brief Description of the Drawings

[0019] Figure 1 : Perspective view of the first state of the preferred embodiment of the present utility model;

[0020] Figure 2 : Cross-sectional view of the first state of the preferred embodiment of the present utility model;

[0021] Figure 3 : Perspective view of the second state of the preferred embodiment of the present utility model;

[0022] Figure 4 : Cross-sectional view of the second state of the preferred embodiment of the present utility model;

[0023] Figure 5 : The present utility model Figure 4 Enlarged view of part A in;

[0024] Figure 6 : Top view of the preferred embodiment of the present utility model. Detailed Description of the Preferred Embodiments

[0025] The objectives, advantages and features of the present utility model will be illustrated and explained by the following non-limiting description of the preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present utility model, and any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

[0026] In the description of the solution, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. And in the description of the solution, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0027] Such as Figure 1 、 Figure 3 And Figure 6As shown in the figure, the present utility model discloses an orifice plate sampling device, which includes a bottom plate 1 arranged above the orifice plate, and a driving assembly is slidably arranged on the bottom plate 1. Specifically, the driving assemblies are symmetrically arranged on both sides of the bottom plate 1, and a sliding assembly including a slide rail is formed between the driving assemblies and the side wall of the bottom plate 1, which has the function of realizing linear movement as disclosed in the prior art. Since the specific structure of the sliding assembly is known prior art, it will not be elaborated here.

[0028] As Figures 1 to 4 and Figure 6 shown in the figure, the driving assembly includes driving motors 21 symmetrically arranged outside the bottom plate 1, a locking module 22 located at the output end of the driving motor 21, and a lifting plate 23 for driving the locking module 22 to move along the height direction of the bottom plate 1. The locking module 22 includes a locking pin 221 passing through a locking plate 220 and the lifting plate 23, and a push plate 222 arranged coaxially with the output end of the locking pin 221; a group of pickers 223 corresponding to the placement holes on the orifice plate are evenly distributed on the push plate 222, and the output end of the picker 223 can selectively pass through the bottom plate 1. When in use, as Figures 3 to 4 shown in the figure, the driving motor 21 slides to correspond to any one of the locking pins 221, and drives the locking pin 221 to abut against the end of the push plate 222. The lifting driver drives the lifting plate 23, the push plate 222 and the locking plate 220 to move towards the bottom plate 1 until the end of the picker 223 moves into the orifice plate.

[0029] Furthermore, a group of through holes 10 facilitating the passage of the pickers 223 are formed on the bottom plate 1; the maximum inner diameter of the through holes 10 is equivalent to the main body diameter of the pickers 2233, and the minimum inner diameter of the through holes 10 is equivalent to the probe diameter of the pickers 2233.

[0030] As Figure 1 or Figure 3 shown in the figure, a group of the push plates 222 are evenly distributed on the bottom plate 1 along the sliding direction of the driving motor 21, and elastic connecting pieces 102 connecting the push plates 222 to the bottom plate 1 are arranged at both ends of the push plates 222. Specifically, as Figure 2 or Figure 4 shown in the figure, the elastic connecting piece 102 includes a plug pin 1021 and a spring 1022; the plug pin 1021 passes through the push plate 222 and is inserted into the bottom plate 1; the bottom end of the spring 1022 is located on the upper surface of the bottom plate 1. By connecting the bottom plate 1 and the push plate 222 through the elastic connecting piece 102, a buffering effect is achieved during the relative movement of the push plate 222 with respect to the bottom plate 1, effectively avoiding hard contact between the push plate 222 and the bottom plate 1, reducing the contact area between the two, and thus reducing wear between the two.

[0031] As Figure 2 or Figure 4 shown, locking grooves 2221 are provided at both ends of the push plate 222, and the openings of the locking grooves 2221 face the output end of the locking pin 221; each push plate 222 corresponds to two symmetrically arranged locking pins 221, and each locking pin 221 is arranged on the locking plate 220. The diameter of the input end of the locking pin 221 is larger than its main body diameter; after the driving motor 21 is started, it will contact the input end of the locking pin 221 and apply a force to it, so that the locking pin 221 moves in the direction of the push plate 222 until the output end of the locking pin 221 penetrates through the lifting plate 23 and is located in the locking groove 2221, so that the locking module 22 realizes the locking action, so that the lifting plate 23 drives the locked push plate 222 and the picker 223 thereon to move up and down synchronously, and realizes the sampling operation of the sample in the placement hole on the orifice plate.

[0032] The lifting plate 23 is arranged between the output end of the locking pin 221 and the locking groove 2221, and a set of through holes corresponding to the locking pin 221 are arranged thereon. The lifting plate 23 can be in a plate structure or a frame structure. The lifting plate 23 is driven by a linear moving device to reciprocate integrally in the height direction of the bottom plate 1. The number of the linear moving devices can be one, or two diagonally arranged, or more than two, and can be adjusted specifically according to practical needs and applicable places, and will not be limited here. The linear moving device can be a known structure with a linear moving function such as a cylinder, an electric cylinder, a lead screw, a linear module, etc. disclosed in the prior art, and will not be elaborated here.

[0033] At least one end of the locking plate 220 is provided with a driver for driving it to move in the reset direction of the driving motor 21. This driver can be a known component with a linear moving function such as a cylinder or a lead screw, and will not be limited here. After the sampling is completed, the locking pin 221 and the push plate 222 can be unlocked through this driver. Specifically, this driver drives the locking plate 220 and the locking pin 221 to move in the direction of the driving motor 21, realizes the reset of the locking pin 221, and completes the unlocking operation.

[0034] The working process of the present utility model is as follows: Move the driving motor 21 to a position coaxial with the specified push plate 222; Start the driving motor 21 to drive the output end of the locking pin 221 to penetrate through the lifting plate 23 until the output end of the locking pin 221 is located within the locking groove 2221, so that the push plate 222 is in the second state, that is, the locking state, and at this time, the locking pin 221 coaxial with the locking state is not coplanar with other locking pins 221; Then start the linear moving device to drive the lifting plate 23, the push plate 222, the pick-up device 223 penetrating through the push plate 222, and the locking module 22 composed of the locking plate 220 and the locking pin 221 to move synchronously towards the bottom plate 1 until the pick-up device 223 penetrates through the bottom plate 1 and is located within the placement hole of the hole plate below the bottom plate 1, completing the sampling operation. The linear moving device drives the lifting plate 23 and the locking module 22 to move upwards synchronously until the linear moving device resets. The driver drives the locking plate 220 and the locking pin 221 to move towards the driving motor 21 until the output end of the locking pin 221 is located outside the notch of the locking groove 2221, so that the push plate 222 is in the first state, that is, the unlocking state; At this time, the input ends and output ends of all the locking pins 221 are coplanar.

[0035] After the pick-up device 223 completes the sampling operation, the bottom plate 1 will drive the pick-up device 223 to move directly above the detection point, or the detection device will drive the detection point to move directly below the pick-up device 223 to detect the sample on the pick-up device 223. The bottom plate 1 can achieve automatic moving operation through structures disclosed in prior arts such as conveyor lines or manipulators, avoiding affecting the detection result due to contact.

[0036] In other embodiments, a set of the driving motors 21 can also be symmetrically fixed on the outside of the bottom plate, and each driving motor 21 corresponds to a locking pin 221. Set one corresponding driving motor 21 at both ends of each push plate 222. When starting any one or any group of the driving motors 21, locking operations can be performed on the push plates 222 where the specified row or multiple rows of pick-up devices 223 are located, realizing the sampling operation of any one row or multiple rows of pick-up devices 223. In this embodiment, multiple rows of pick-up devices 223 can be continuous or discontinuous.

[0037] In addition, it should be noted that consumables or devices as shown in Figures 1 to 4 can also be placed in the placement holes on the hole plate. The structure of the consumables or devices is the structure shown in the figure. Since its structure is not the protection point of the present utility model, it will not be elaborated here. When using as shown in Figures 1 to 4When referring to the consumable or device shown, during the sampling process, the picking methods between the end of the picker 223 and the consumable or device include, but are not limited to, interference fit, snap fit, etc., and are not limited herein.

[0038] There are still various implementation manners of the present utility model. All technical solutions formed by equivalent transformation or equivalent substitution fall within the protection scope of the present utility model.

Claims

1. Orifice plate sampling device, characterized in that: It includes a bottom plate (1) arranged above the orifice plate. A driving assembly is slidably arranged on the bottom plate (1). The driving assembly includes driving motors (21) symmetrically arranged on the outer side of the bottom plate (1), a locking module (22) located at the output end of the driving motor (21), and a lifting plate (23) for driving the locking module (22) to move along the height direction of the bottom plate (1); the locking module (22) includes a locking pin (221) passing through a locking plate (220) and the lifting plate (23), and a push plate (222) arranged at the output end of the locking pin (221) and coaxially with it; a group of pickers (223) corresponding one by one to the placement holes on the orifice plate are evenly distributed on the push plate (222), and the output end of the picker (223) can selectively penetrate the bottom plate (1); the driving motor (21) slides to correspond to any one of the locking pins (221), drives the locking pin (221) to abut against the end of the push plate (222), and the lifting driver drives the lifting plate (23), the push plate (222) and the locking plate (220) to move towards the bottom plate (1) until the end of the picker (223) moves into the orifice plate.

2. The orifice plate sampling device according to claim 1, wherein: A group of the push plates (222) are evenly distributed on the bottom plate (1) along the sliding direction of the driving motor (21), and elastic connecting pieces (102) connected to the bottom plate (1) are arranged at both ends of the push plate (222).

3. The orifice plate sampling device according to claim 2, characterized in that: The elastic connecting piece (102) includes a plug pin (1021) and a spring (1022); the plug pin (1021) passes through the push plate (222) and is inserted into the bottom plate (1); the bottom end of the spring (1022) is located on the upper surface of the bottom plate (1).

4. The orifice plate sampling device according to claim 3, characterized in that: Locking grooves (2221) are arranged at both ends of the push plate (222), and the openings of the locking grooves (2221) face the output end of the locking pin (221); each push plate (222) corresponds to two symmetrically arranged locking pins (221), and each locking pin (221) is arranged on the locking plate (220).

5. The orifice plate sampling device according to claim 4, wherein: The diameter of the input end of the locking pin (221) is larger than its main body diameter; at least one end of the locking plate (220) is provided with a driver for driving it to move in the reset direction of the driving motor (21) to unlock the locking pin (221) and the push plate (222).

6. The orifice plate sampling device according to claim 5, wherein: The lifting plate (23) is driven by a linear moving device; the lifting plate (23) is arranged between the output end of the locking pin (221) and the locking groove (2221), and a group of through holes corresponding to the locking pins (221) are arranged on it.

7. The orifice plate sampling device according to claim 6, wherein: The lifting plate (23) is in a plate-like structure or a frame-like structure.

8. The orifice plate sampling device according to claim 7, characterized in that: A group of through holes (10) are formed on the bottom plate (1); the maximum inner diameter of the through holes (10) is equivalent to the main body diameter of the picker (223), and the minimum inner diameter of the through holes (10) is equivalent to the probe diameter of the picker (223).

9. The orifice plate sampling device according to claim 8, characterized in that: A set of the driving motors (21) are symmetrically fixed to the outer side of the bottom plate, and each driving motor (21) corresponds to a locking pin (221).

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