CN217830104U - Clamping device and cup separating system - Google Patents

Abstract

The utility model relates to a clamping device and branch cup system, clamping device includes: the mounting seat is provided with a clamping position for placing the sampling tube; the clamping assembly is arranged corresponding to the clamping position and comprises two clamping blocks; the first driving piece and the second driving piece are arranged on the mounting seat, one clamping block in the clamping assembly is connected with the first driving piece, and the other clamping block is connected with the second driving piece; the first driving part and the second driving part are respectively used for driving the two clamping blocks to move oppositely or back to back so that the two clamping blocks clamp the sampling tube or loosen the sampling tube from two sides of the sampling tube placed in the clamping position in the first direction. Above-mentioned clamping device and branch cup system have reduced the emergence of the eccentric phenomenon of sampling pipe and off normal phenomenon, and the mouth of pipe of the sampling pipe of being convenient for is centered with the liquid-transfering gun head that the device of uncapping or liquid-transfering device of top loaded to make things convenient for subsequent screw capping operation and liquid-transfering operation.

Description

Clamping device and cup separating system

Technical Field

The utility model relates to a biological detection technical field especially relates to a clamping device and divide cup system.

Background

In the field of in vitro detection, such as in nucleic acid detection, samples are often stored through a sampling tube. Before nucleic acid extraction, the sample needs to undergo inactivation, plate rotation, and other steps. The conventional work of rotating the plate after inactivation needs manual operation, and comprises a series of complicated works such as information checking, opening a sampling tube, pipetting, closing the sampling tube and the like. These seemingly trivial manipulations severely impact the progress of nucleic acid detection in the context of large-scale nucleic acid screening requirements. Meanwhile, the manual operation is easy to contact with the sample, and certain infection risk is also generated.

In order to improve the detection efficiency and reduce the infection risk, a cup-separating system is produced. In the cup separating system, the sampling tube is used for sampling with a cover, so that automatic cover opening and closing and automatic bar code information input can be realized. In the cup separating process, the clamping device clamps the sampling tube, the cover opening device is used for opening and closing the cover, and the liquid transfer device absorbs a sample in the sampling tube through the liquid transfer gun head.

However, the conventional clamping device is usually in the form of a fixed limiting seat arranged on one side and a clamping block arranged on the other side, and the sampling tube is clamped by moving the clamping block. Specifically, when clamping operation is carried out, the sampling tube is firstly placed into the fixed limiting seat, and then the clamping block is driven to move close to the fixed limiting seat so as to clamp the sampling tube. However, such clamping device, when pressing from both sides tight sampling pipe, easily produce eccentric phenomenon (sampling pipe atress slope) or off normal phenomenon (when putting into fixed spacing seat with the sampling pipe, the position of sampling pipe this moment is initial position, and when the sampling pipe was in initial position, must have certain clearance between the wall of sampling pipe and spacing seat, when pressing from both sides tight sampling pipe of piece, the sampling pipe can produce certain displacement to with the wall laminating of fixed spacing seat). Thus, the nozzle of the sampling tube is not aligned with the clamping jaw of the cover opening device above or the pipette tip loaded by the pipetting device, and the subsequent cover screwing operation or pipetting operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a clamping device and a cup-separating system, which can overcome the above-mentioned defects, in order to solve the problem that the conventional clamping device is prone to eccentricity or misalignment when clamping a sampling tube.

A clamping device, the clamping device comprising:

the mounting seat is provided with a clamping position for placing the sampling pipe;

the clamping assembly is arranged corresponding to the clamping position and comprises two clamping blocks;

the clamping assembly comprises a first driving piece and a second driving piece which are arranged on the mounting seat, one clamping block in the clamping assembly is connected with the first driving piece, and the other clamping block in the clamping assembly is connected with the second driving piece;

the first driving piece and the second driving piece are used for driving the two clamping blocks to move towards or away from each other respectively, so that the two clamping blocks clamp the sampling tube or loosen the sampling tube from two sides of the sampling tube placed in the clamping position in the first direction.

In one embodiment, a placing part is convexly arranged on the mounting seat, and the clamping position is a placing groove opened on the placing part.

In one embodiment, the two clamping blocks of the clamping assembly each have a clamping opening for clamping the sampling tube on the side facing each other in the first direction.

In one embodiment, the two clamping blocks of the clamping assembly are equidistant from the center of the clamping position;

the first driving piece and the second driving piece are controlled to move synchronously so as to drive the two clamping blocks of the clamping assembly to synchronously clamp the sampling tube.

In one embodiment, a plurality of clamping positions are arranged on the mounting seat at intervals in the first direction; the number of the clamping assemblies is equal to that of the clamping positions and corresponds to that of the clamping positions one by one;

the clamping device further comprises two connecting plates extending along the first direction, wherein one connecting plate is connected with the first driving piece, and the other connecting plate is connected with the second driving piece; the clamping blocks located on one side in the first direction in all the clamping assemblies are connected with a connecting plate connected with the first driving piece, and the clamping blocks located on the other side in the first direction in all the clamping assemblies are connected with a connecting plate connected with the second driving piece.

In one embodiment, one of the mounting seat and the connecting plate is provided with a first guide rail extending along the first direction, and the other one of the mounting seat and the connecting plate is provided with a first sliding block, and the first sliding block is in sliding fit with the first guide rail.

In one embodiment, the clamping device further comprises a plurality of connecting blocks, and each clamping block is connected with the connecting plate through one connecting block.

In one embodiment, the clamping device further includes a plurality of first guide rods and a plurality of first elastic members, and each clamping block and the corresponding connecting block are provided with the first guide rods in a penetrating manner; the first elastic piece is arranged between each connecting block and each clamping block;

one of the connecting block and the clamping block is movable in the first direction relative to the first guide rod penetrating therethrough to compress the first elastic member.

In one embodiment, the first guide rod comprises a first rod body and a first limiting part, the first rod body is arranged through the connecting block, the first elastic element and the clamping block, and the first limiting part is arranged at one end, penetrating out of the connecting block, of the first rod body;

the first rod body is fixedly connected with the clamping block, and the connecting block is movably arranged between the first elastic piece and the first limiting part.

A dispensing cup system, comprising:

a mounting frame;

a clamping device as claimed in any one of the preceding claims, said clamping device being mounted to said mounting bracket by said mounting socket;

the cover opening device is movably arranged on the mounting rack and can be controllably moved to the position above the clamping device so as to open and close the cover of the sampling pipe clamped on the clamping device;

and the pipetting device is movably arranged on the mounting rack and can be controlled to move above the clamping device so as to suck the sample in the sampling tube through the pipette tip.

According to the clamping device and the cup separating system, the first driving piece drives one clamping block of the clamping assembly to move, and the second driving piece drives the other clamping block of the clamping assembly to move, so that the two clamping blocks can be controlled to simultaneously clamp the sampling tube from two sides of the sampling tube in the first direction. For prior art (one side sets up fixed spacing seat, the opposite side sets up the form of pressing from both sides tight piece, press from both sides tight piece through removing and press from both sides tight sampling tube, such clamping device, when pressing from both sides tight sampling tube, produce eccentric phenomenon or off normal phenomenon easily), but the fixed opposite side in non-one side is provided with the form of pressing from both sides tight piece, has reduced the emergence of eccentric phenomenon and off normal phenomenon, the mouth of pipe of the sampling tube of being convenient for is centered with the liquid-transfering gun head that the device of uncapping or the liquid-transfering device of top loaded to make things convenient for subsequent twist to cover operation and liquid-transfering operation. Meanwhile, the two clamping blocks of the clamping assembly are driven by the first driving piece and the second driving piece respectively, so that the two clamping blocks of the clamping assembly can be controlled independently.

Drawings

Fig. 1 is a structural diagram of a view angle of a cup dispensing system according to an embodiment of the present invention;

FIG. 2 is a block diagram of another perspective of the cup dispensing system shown in FIG. 1;

FIG. 3 is a block diagram of yet another perspective of the cup dispensing system shown in FIG. 1;

FIG. 4 is an isometric view of a clamping device of the cup dispensing system shown in FIG. 1;

FIG. 5 is an isometric view of a portion of the clamp shown in FIG. 4;

FIG. 6 is a partial exploded view of the structure shown in FIG. 5;

FIG. 7 is an enlarged view at A of the structure shown in FIG. 6;

FIG. 8 is an isometric view of the uncapping device of the cup-dispensing system shown in FIG. 1;

figure 9 is an isometric view of some of the components of the door opener device shown in figure 8;

FIG. 10 is an isometric view of a partial structure of the structure shown in FIG. 9;

FIG. 11 is an isometric view of a partial structure of the structure shown in FIG. 9;

fig. 12 is an enlarged view at B of the structure shown in fig. 11.

100. A cup separating system; 10. a mounting frame; 11. a base plate; 12. a vertical plate; 20. a clamping device; 21. a mounting base; 22. a clamping assembly; 221. a clamping block; 2211. a clamping opening; 23. a first driving member; 24. a second driving member; 25. a placement section; 251. a placement groove; 26. a connecting plate; 27. a first guide rail; 28. a first slider; 29. connecting blocks; 210. a first guide bar; 220. a first rod body; 230. a first limiting part; 240. a first elastic member; 250. a photoelectric switch; 260. a housing; 261. an opening; 30. a cap opening device; 31. a fixed seat; 32. a movable seat; 321. a base body; 322. a second limiting part; 33. a cover opening mechanism; 331. opening the cover piece; 332. an installation part; 3321. mounting lugs; 34. a third driving member; 35. a third screw rod; 36. a third nut; 37. a second elastic member; 38. a second guide bar; 381. a second rod body; 382. a third limiting part; 39. a code scanner; 310. a second guide rail; 320. a second slider; 40. a pipetting device; 50. a pipette tip; 60. a sample carrier; 61. a receiving hole; 70. a consumable carrier; 80. a deep hole plate; 90. a waste gun head collection box; 200. a sampling tube.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1-3, an embodiment of the present invention provides a cup separating system 100, which is used for separating a cup system 100 from a sampling tube 200, such as a sample-taking tube with a cover, to realize automatic cover opening and closing, automatic information input and automatic liquid transfer, thereby improving the detection efficiency. Meanwhile, the cover opening, the cover closing, the information checking and the liquid transferring are all automatically completed, and the infection risk in the operation process of an operator is reduced.

It should be noted that the cup dispensing system 100 is not limited to the opening and closing of the sampling tube 200 for nucleic acid detection, information collection, and pipetting, but can also be applied to the opening and closing of the sampling tube 200 for other detection. For convenience of illustration, the opening and closing of the lid, information collection, and pipetting of the sampling tube 200 when the cup dispensing system 100 is applied to nucleic acid detection will be described in detail below, but the description is not intended to limit the scope of the present application.

The cup dispensing system 100 comprises a mounting frame 10, and a clamping device 20, a cap opening device 30 and a pipetting device 40 which are mounted on the mounting frame 10. Specifically, clamping device 20 is fixedly mounted on mounting frame 10 for clamping sampling tube 200. The cap opening device 30 and the pipetting device 40 are movably mounted on the mounting frame 10, and the cap opening device 30 can be controlled to move relative to the mounting frame 10 to move above the clamping device 20 for opening and closing the sampling tube 200. The pipetting device 40 is controllably moved relative to the mounting frame 10 to move above the clamping device 20 to aspirate a sample in the sampling tube 200 through the pipette tip 50 to complete the pipetting operation.

The mounting rack 10 comprises a bottom plate 11 and a vertical plate 12 which are connected with each other, the clamping device 20 is mounted on the bottom plate 11, and the cover opening device 30 and the liquid transferring device 40 are movably mounted on the vertical plate 12.

Specifically, the cup dispensing system 100 further comprises a sample carrier 60, the sample carrier 60 having a number of receiving holes 61 for placing sampling tubes 200. The uncapping device 30 can grip the sampling tube 200 placed on the sample carrier 60 and transfer the sampling tube 200 onto the clamping device 20, so that the clamping device 20 can clamp the tube body of the sampling tube 200. When the tube body of the sampling tube 200 is clamped by the clamping device 20, the cap-opening device 30 clamps the sampling tube 200 and rotates the cap body, so as to realize the cap-opening operation of the sampling tube 200. When the cap needs to be closed, the tube body of the sampling tube 200 is still clamped by the clamping device 20, and the cap-opening device 30 clamps the cap body of the sampling tube 200 and rotates reversely, so that the cap-closing operation of the sampling tube 200 is realized.

In one embodiment, referring to fig. 4 and 5, the clamping device 20 has a clamping position, and the sampling tube 200 is clamped to the clamping position of the clamping device 20. Specifically, the clamping device 20 includes an installation seat 21, a clamping assembly 22, a first driving member 23 and a second driving member 24, the installation seat 21 is fixedly installed on the bottom plate 11, and the first driving member 23 and the second driving member 24 are both installed on the installation seat 21. The clamping assembly 22 comprises two clamping blocks 221, wherein one clamping block 221 is connected to the first drive element 23 and the other clamping block 221 is connected to the second drive element 24.

The first driving member 23 and the second driving member 24 respectively drive the two clamping blocks 221 to move towards or away from each other, so that the two clamping blocks 221 clamp the sampling tube 200 or loosen the sampling tube 200 from two sides of the sampling tube 200 placed in the clamping position in the first direction. That is, the first driving member 23 drives one clamping block 221 connected thereto to move, the second driving member 24 drives the other clamping block 221 connected thereto to move, and when the first driving member 23 and the second driving member 24 respectively drive the two clamping blocks 221 to move, the two clamping blocks 221 can clamp the sampling tube 200 located at the clamping position from both sides of the sampling tube 200 in the first direction, or loosen the sampling tube 200 located at the clamping position.

Clamping apparatus 20, as first drive member 23 drives one clamping block 221 of clamping assembly 22 to move, and second drive member 24 drives the other clamping block 221 of clamping assembly 22 to move, facilitates control of both clamping blocks 221 to simultaneously clamp sampling tube 200 from both sides of sampling tube 200 in the first direction. For prior art (one side sets up fixed spacing seat, the opposite side sets up the form of pressing from both sides tight piece, press from both sides tight piece through removing and press from both sides tight sampling tube, such clamping device, when pressing from both sides tight sampling tube, produce eccentric phenomenon or off normal phenomenon easily), but the fixed opposite side in one side is provided with the form of pressing from both sides tight piece 221, has reduced the emergence of eccentric phenomenon and off normal phenomenon, the mouth of pipe of the sampling tube 200 of being convenient for is centered with the liquid-transfering gun head 50 that the device 30 or the liquid-transfering device 40 of uncapping of top loaded, thereby make things convenient for subsequent screw-on lid operation and liquid-transfering operation. Meanwhile, the two clamping blocks 221 of the clamping assembly 22 are driven by the first driving element 23 and the second driving element 24 respectively, so that the two clamping blocks 221 of the clamping assembly 22 can be controlled independently.

Further, referring to fig. 6 and 7, the mounting seat 21 is provided with a placing portion 25 in a protruding manner, and the clamping position is a placing groove 251 opened in the placing portion 25. Further, the clamping device 20 has a housing 260 mounted on the mounting base 21, the placing portion 25, the first driving member 23, the second driving member 24 and the clamping assembly 22 are all located in the housing 260, an opening 261 is provided on the housing 260, the opening 261 is communicated with the placing groove 251, and the sampling tube 200 is placed in the placing groove 251 through the opening 261. In this way, the housing 260 acts to protect the first drive member 23, the second drive member 24 and the clamping assembly 22.

It should be understood that in other embodiments, the housing 260 may be omitted from the clamping device 20, and is not limited thereto.

In some embodiments, both the first drive member 23 and the second drive member 24 are motors, so as to drive the two clamping blocks 221 of the clamping assembly 22 to simultaneously clamp or unclamp the sampling tube 200. In other embodiments, the types of the first driving member 23 and the second driving member 24 are not limited, and the first driving member 23 and the second driving member 24 may be cylinders.

The two clamping blocks 221 of the clamping assembly 22 each have a clamping opening 2211 for clamping the sampling tube 200 on a side facing each other in the first direction, such that when the two clamping blocks 221 are moved toward each other to clamp the sampling tube 200, at least a portion of the sampling tube 200 is received in both clamping openings 2211 to ensure the clamping effect of the clamping blocks 221 clamping the sampling tube 200.

Specifically, the cross-sectional shapes of the two clamping ports 2211 are both arc-shaped. And in order to further ensure the clamping effect, clamping teeth are convexly arranged in the clamping port 2211 so as to increase the friction force with the sampling tube 200 and ensure that the sampling tube 200 is clamped.

In one embodiment, the two clamping blocks 221 of the clamping assembly 22 are equidistant from the center of the clamping location. The first driving member 23 and the second driving member 24 are controlled to move synchronously to drive the two clamping blocks 221 of the clamping assembly 22 to synchronously clamp the sampling tube 200. Thus, when the two clamping blocks 221 synchronously clamp the sampling tube 200 from both sides of the sampling tube 200 in the first direction, the occurrence of eccentricity and misalignment is further reduced.

For example, when the clamping position is the placement groove 251, the center of the placement groove 251 in the first direction is equidistant from the two clamping blocks 221, and when the first driving member 23 and the second driving member 24 are controlled to move synchronously, the two clamping blocks 221 of the clamping assembly 22 are ensured to synchronously clamp the sampling tube 200.

It should be noted that the first driving member 23 and the second driving member 24 are controlled to move synchronously, that is, the two driving members are of the same kind and move with the same parameters. If the two driving parts are both motors, the two motors are controlled to move for the same number of turns at the same rotating speed.

In an embodiment, the mounting base 21 has a plurality of clamping positions, specifically 4 clamping positions, spaced in the first direction. Specifically, in one embodiment, a plurality of placing portions 25 are protruded from the mounting base 21 in the first direction at intervals, and a placing groove 251 is formed in each placing portion 25 as a clamping position.

The clamping device 20 comprises a number of clamping assemblies 22 equal to the number of clamping positions, and the clamping assemblies 22 correspond to the clamping positions one by one, i.e. each clamping position is provided with a group of clamping assemblies 22.

Referring to fig. 5, the clamping device 20 further includes two connecting plates 26 extending along a first direction, respectively defined as a first connecting plate connected to the first driving member 23 and a second connecting plate connected to the second driving member 24. It is defined that the gripper block of each set of gripper assemblies 22 on one side of sampling tube 200 in the first direction is the first gripper block and the gripper block on the other side of sampling tube 200 in the first direction is the second gripper block. All the first clamping blocks are connected with the first connecting plate, and all the second clamping blocks are connected with the second connecting plate.

The first driving member 23 drives the first connecting plate to reciprocate along the first direction, so as to drive the plurality of first clamping blocks to reciprocate along the first direction. The second driving member 24 drives the second connecting plate to reciprocate along the first direction, so as to drive the plurality of second clamping blocks to reciprocate along the first direction. With such an arrangement, one first driving member 23 can drive a plurality of first clamping blocks to move simultaneously, and one second driving member 24 can drive a plurality of second clamping blocks to move simultaneously, so as to simplify the structure of the clamping device 20 on the premise of ensuring that the clamping device 20 can clamp a plurality of sampling tubes 200 simultaneously.

In one embodiment, the first driving member 23 and the second driving member 24 are disposed at the same end of the mounting seat 21 in the first direction to optimize the structural layout of the clamping device 20. Of course, in other embodiments, the first driving member 23 and the second driving member 24 may be disposed at two ends of the mounting seat 21 in the first direction.

Further, the first driving member 23 is connected with a first screw rod extending along the first direction, the first connecting plate is connected with a first nut, and the first screw rod is in threaded connection with the first nut. When the first driving member 23 drives the first screw rod to rotate, the first nut and the first screw rod generate relative motion, and the first connecting plate is driven to move along the first direction. The second driving member 24 is provided with a second screw rod extending along the first direction, the second connecting plate is provided with a second nut, and the second screw rod is in threaded connection with the second nut. When the second driving member 24 drives the second screw rod to rotate, the second nut and the second screw rod generate relative movement, and the second connecting plate is driven to move along the first direction.

It should be understood that in other embodiments, the first driving member 23 may drive the first connecting plate via other transmission members, and the second driving member 24 may drive the second connecting plate via other transmission members. Alternatively, in still other embodiments, the transmission may be omitted, with the first drive member 23 driving the first web directly in the first direction and the second drive member 24 driving the second web in the first direction.

Referring to fig. 6, one of the mounting base 21 and the connecting plate 26 is provided with a first guide rail 27 extending along a first direction, and the other is provided with a first sliding block 28, and the first sliding block 28 is in sliding fit with the first guide rail 27. In this way, the first guide rail 27 and the first slider 28 cooperate to guide the connecting plate 26 (including the first connecting plate and the second connecting plate) so as to control the movement of the clamping block 221 in the first direction.

In one embodiment, the first guide rail 27 is disposed on the mounting base 21, and the first slider 28 is disposed on the connecting plate 26. In another embodiment, the first guide rail 27 is disposed on the connecting plate 26, and the first slider 28 is disposed on the mounting base 21.

In an embodiment, referring to fig. 5 and 7, the clamping device 20 comprises a plurality of connecting blocks 29, each clamping block 221 is connected to the connecting plate 26 through one connecting block 29, that is, each first clamping block is connected to the first connecting plate through one connecting block 29, and each second clamping block is connected to the second connecting plate through one connecting block 29.

All the connecting blocks 29 are arranged between the first connecting plate and the second connecting plate, and the connecting blocks 29 connected with the first connecting plate and the second connecting plate respectively extend towards the other connecting plate 26, namely each connecting block 29 extends along the third direction.

Referring to fig. 7, the clamping device 20 further includes a plurality of first guide rods 210 and a plurality of first elastic members 240, the first guide rods 210 are disposed through each clamping block 221 and the corresponding connecting block 29, and the first elastic members 240 are disposed between each connecting block 29 and each clamping block 221. One of the connecting block 29 and the clamping block 221 is movable in a first direction relative to the first guide rod 210 penetrating therethrough to compress the first elastic member 240.

With the above arrangement, when the clamping device 20 clamps a plurality of sampling tubes 200, if there is a deviation in the thickness of the sampling tube 200, the thicker sampling tube 200 is first clamped by its corresponding clamping assembly 22, and at this time, in order to clamp the thinner sampling tube 200, the first driving member 23 still drives the first connecting plate to move, and the second driving member 24 also drives the second connecting plate to move. In order to avoid the thicker sampling tube 200 from being damaged during the movement of the first and second connection plates, one of the clamping blocks 221 mounted on the first guide bar 210 and the connection block 29 is provided to be movable relative to the first guide bar 210, so that the clamping blocks 221 mounted on the first and second connection plates move relative thereto, thereby avoiding the thicker sampling tube 200 from being damaged. While the first elastic member 240 is compressed when one of the connecting block 29 and the clamping block 221 moves relative to the first guide rod 210 penetrating therethrough, the first elastic member 240 resets the clamping block 221 or the connecting block 29 moving relative to the first guide rod 210 when the clamping assembly 22 releases the sampling tube 200.

The first elastic member 240 may be a spring, which is sleeved outside the first guide bar 210, or other types of first elastic members 240, such as an elastic sleeve made of rubber.

Further, each clamping block 221 is correspondingly provided with a plurality of first guide rods 210, specifically two guide rods. That is, two first guide rods 210 are arranged through each clamping block 221 and the corresponding connecting block 29, a first elastic member 240 is sleeved outside each first guide rod 210, and two first elastic members 240 are arranged between each clamping block 221 and each connecting block 29. The above arrangement ensures the guiding and resetting effect.

The first guide rod 210 includes a first rod 220 and a first position-limiting portion 230, the first rod 220 is disposed through the connecting block 29, the first elastic member 240 and the clamping block 221, and the first position-limiting portion 230 is disposed at an end of the first rod 220 penetrating through the connecting block 29. The first rod 220 is fixedly connected to the clamping block 221, and the connecting block 29 is movably disposed between the first elastic member 240 and the first position-limiting portion 230. Thus, when the clamping device 20 clamps a plurality of sampling tubes 200, if there is a deviation in the thickness of the sampling tube 200, the thicker sampling tube 200 is first clamped by its corresponding clamping assembly 22, and at this time, in order to clamp the thinner sampling tube 200, the first driving member 23 still drives the first connecting plate to move, and the second driving member 24 also drives the second connecting plate to move. During the movement of the first and second connection plates, the clamping block 221 of the clamping assembly 22 clamping the thicker sampling tube 200 will not move due to the restriction of the sampling tube 200, and the connection plate 26 corresponding thereto moves relative to the first rod 220 to compress the first elastic member 240, thereby ensuring that the thinner sampling tube 200 is also clamped. When the clamping assembly 22 releases the sampling tube 200, the connection plate 26 is prevented from separating from the first rod 220 due to the restriction of the first stopper 230.

In one embodiment, the clamping device 20 further includes an electro-optical switch 250 disposed on the mounting seat 21 for repositioning the first connecting plate and the second connecting plate.

In an embodiment, referring to fig. 8 and 9, the lid opening device 30 includes a fixed seat 31, a movable seat 32, and a lid opening mechanism 33, wherein the fixed seat 31 is movably mounted on the vertical plate 12, the movable seat 32 is movably mounted on the fixed seat 31 in the second direction, and the lid opening mechanism 33 is mounted on the movable seat 32.

The first direction, the second direction and the third direction are vertical to each other. The first direction is a Y direction in fig. 1, the second direction is a Z direction in fig. 1, and the third direction is an X direction in fig. 1.

When the sampling tube 200 needs to be transferred, the fixed seat 31 drives the movable seat 32 and the cover opening mechanism 33 to move relative to the mounting rack 10, and when the sampling tube is moved to above the sample carrier 60, the movable seat 32 drives the cover opening mechanism 33 to move downwards relative to the fixed seat 31 in the second direction so as to clamp the sampling tube 200. Then, the lid opening mechanism 33 moves upward in the second direction to return, and the fixed seat 31 carries the movable seat 32 and the lid opening mechanism 33 to move again relative to the mounting seat 21 to move above the clamping device 20. The cover opening mechanism 33 moves downwards relative to the fixing seat 31 in the second direction to place the sampling tube 200 in the clamping position, the clamping block 221 clamps the tube body of the sampling tube 200, and the cover opening mechanism 33 drives the cover body of the sampling tube 200 to rotate relative to the clamped tube body, so that the cover opening of the sampling tube 200 is realized. At this time, the fixed seat 31 drives the movable seat 32 and the cover opening mechanism 33 holding the cover to move away, the liquid-transferring device 40 is controlled to move to the upper side of the clamping device 20, and the liquid-transferring gun head 50 loaded on the liquid-transferring device 40 extends into the tube body to take liquid. After the liquid is taken by the liquid-transfering device 40, the cap-opening device 30 moves to the upper part of the clamping device 20 again, and the cap-opening mechanism 33 screws the cap body onto the tube body in the opposite direction, so as to close the sampling tube 200.

Further, referring to fig. 1, the cup dispensing system 100 further comprises a consumable carrier 70, the consumable carrier 70 is used for mounting the pipette tips 50 and the deep hole plate 80, and the pipetting device 40 first needs to pick up the pipette tips 50 from the consumable carrier 70 before taking liquid. After the liquid is taken out by the liquid-transferring device 40, the liquid-transferring device 40 is controlled to move above the deep well plate 80, and the sample solution taken out from the tube is discharged into the deep well plate 80. Meanwhile, the cup separating system 100 further comprises a waste pipette tip collecting box 90, and the pipette tips 50 after liquid taking are thrown into the waste pipette tip collecting box 90 for collection.

In one embodiment, referring to fig. 9, the cap opening device 30 includes a plurality of cap opening mechanisms 33, the plurality of cap opening mechanisms 33 are sequentially mounted on the movable base 32 in a first direction, the movable base 32 is controlled to drive all the cap opening mechanisms 33 to reciprocate relative to the fixed base 31 in a second direction, and one cap opening mechanism 33 is used for opening and closing a cap of one sampling tube 200. Specifically, the multiple uncovering mechanisms 33 are all located on the same side of the movable seat 32, and the number of the uncovering mechanisms 33 is equal to the number of the clamping positions of the clamping device 20, so that the uncovering device 30 can simultaneously uncover and close the multiple sampling tubes 200 when the clamping device 20 clamps the multiple sampling tubes 200.

In one embodiment, the clamping device 20 is provided with four clamping positions at intervals in the first direction, and the cap-opening device 30 is provided with four cap-opening mechanisms 33 in the first direction. In other embodiments, the number of the gripping positions included in the gripping device 20 is not limited, and accordingly, the number of the cap-opening mechanisms 33 included in the cap-opening device 30 is not limited.

The cap opening device 30 further comprises a third driving element 34, the third driving element 34 is mounted on the fixed seat 31, the movable seat 32 is connected with the third driving element 34, and the third driving element 34 is used for driving the movable seat 32 to reciprocate relative to the fixed seat 31 in the second direction. Referring to fig. 10, specifically, the third driving element 34 is a motor, the third driving element 34 is connected to a third lead screw 35 extending along the second direction, the movable seat 32 is connected to a third nut 36, and the third nut 36 is in threaded connection with the third lead screw 35. When the third driving element 34 drives the third screw 35 to rotate, a relative motion is generated between the third nut 36 and the third screw 35 to drive the movable seat 32 to move relative to the fixed seat 31 in the second direction.

It is contemplated that in other embodiments, the third driving member 34 may drive the movable seat 32 via other transmission members. Alternatively, in some embodiments, the transmission member may be omitted, and the third driving member 34 directly drives the movable seat 32 to move in the second direction.

Referring to fig. 11 and 12, the lid opening device 30 further includes a plurality of second elastic members 37, and the second elastic member 37 is disposed between each lid opening mechanism 33 and the movable base 32. When the cap-opening mechanism 33 receives a force applied thereto by the sampling tube 200, the cap-opening mechanism 33 moves in the second direction relative to the movable base 32, and the second elastic member 37 elastically deforms and accumulates energy.

When the cover opening mechanisms 33 simultaneously realize the cover opening and closing of the sampling pipes 200 with different heights, the third driving piece 34 drives the movable seat 32 to drive the cover opening mechanisms 33 to move downwards in the second direction, and the cover bodies clamped by the cover opening mechanisms 33 corresponding to the sampling pipes 200 with higher heights are firstly contacted with the pipe bodies of the sampling pipes 200. In order to ensure that the sampling tube 200 with the shorter height can be simultaneously closed, the third driving element 34 still drives the movable seat 32 to drive the cover opening mechanism 33 to move downwards, at this time, the sampling tube 200 with the higher height exerts an acting force on the cover opening mechanism 33 corresponding to the sampling tube 200 with the shorter height, the cover opening mechanism 33 moves upwards and compresses the corresponding second elastic element 37, the second elastic element 37 elastically deforms to avoid crushing the sampling tube 200, and the cover opening mechanism 33 corresponding to the sampling tube 200 with the higher height does not limit the closing of the cover opening mechanism 33 corresponding to the sampling tube 200 with the shorter height. When it is ensured that the cap-opening mechanism 33 corresponding to the sampling tube 200 having a shorter height can grip the sampling tube 200, the third driving member 34 stops. Like this, can guarantee that the lid of whole sampling pipe 200 screws up rather than corresponding body to guarantee that every sampling pipe 200 closes the lid and all go on smoothly, guaranteed the success rate that a plurality of sampling pipes 200 closed the lid simultaneously.

It should be noted that the second elastic member 37 can be used for resetting the lid opening mechanism 33 after the lid closing operation is completed.

Referring to fig. 9, 11 and 12, the movable seat 32 includes a seat body 321 and a plurality of second position-limiting portions 322 connected to the seat body 321. Each lid opening mechanism 33 includes a lid opening member 331 and a mounting portion 332 connected to each other, the lid opening member 331 being mounted on the mounting portion 332, the lid opening member 331 being used for opening and closing the lid of the sampling tube 200. Each mounting portion 332 is movably mounted on the second limiting portion 322 in the second direction, and a second elastic element 37 is disposed between each mounting portion 332 and the second limiting portion 322.

Thus, when the sampling tube 200 applies a force to the lid opening member 331, the lid opening member 331 transmits the force to the mounting portion 332, the mounting portion 332 compresses the second elastic member 37, and the second stopper 322 stops the second elastic member 37.

It should be noted that the structure of the opening cap 331 can refer to the prior art, and will not be described in detail herein, as long as the functions of clamping the sampling tube 200 and driving the cap body of the sampling tube 200 to rotate relative to the tube body for opening and closing the cap are achieved.

Furthermore, two mounting ears 3321 are respectively formed on two sides of each mounting portion 332 in the second direction, a second limiting portion 322 is disposed on the movable seat 32 corresponding to each mounting ear 3321, and a second elastic element 37 is disposed between each second limiting portion 322 and each mounting ear 3321. Thus, the two sides of each opening cover part 331 in the second direction are uniformly stressed, the inclination is not easy to occur, and the opening and closing effect is ensured.

It is contemplated that in other embodiments, the number of the second elastic members 37 corresponding to each cap opening mechanism 33 is not limited, for example, more than two second elastic members 37 may be provided for each cap opening mechanism 33.

The cap opening device 30 further includes a plurality of second guide rods 38, and each of the second guide rods 38 sequentially passes through the second limiting portion 322, the second elastic element 37 and the mounting lug 3321. The second guide rod 38 extends along the second direction, the second guide rod 38 is fixedly connected with the second limiting portion 322, and the mounting lug 3321 is movably connected with the second guide rod 38. In this way, the assembly of the second elastic member 37 is facilitated, and the guide of the mounting portion 332 is facilitated.

In an embodiment, the second guide rod 38 includes a second rod 381 and a third limiting portion 382, the second rod 381 penetrates through the second limiting portion 322, the second elastic element 37 and the mounting lug 3321, the second rod 381 is in threaded connection with the second limiting portion 322, the third limiting portion 382 is disposed at one end of the second rod 381, which penetrates through the mounting lug 3321, and the mounting lug 3321 can be abutted against and matched with the third limiting portion 382. In this manner, the third stopper 382 restricts the lid-opening mechanism 33 from separating from the movable holder 32 by gravity.

Of course, in other embodiments, the third limiting portion 382 may be omitted from the second guide rod 38, and the cover opening mechanism 33 may be limited from being separated from the movable seat 32 by gravity by other structures.

Specifically, the second elastic element 37 may be a spring, so as to be sleeved outside the second guide rod 38, or other types of second elastic elements 37, such as an elastic sleeve made of rubber.

Further, in order to guide the door opening mechanism 33 in the second direction, one of the mounting portion 332 and the seat 321 is provided with the second guide rail 310, the other is provided with the second slider 320, and the mounting portion 332 and the seat 321 are slidably engaged with the second guide rail 310 through the second slider 320 in the second direction.

In one embodiment, referring to fig. 8-10, the uncovering device 30 further includes a plurality of scanners 39, all of the scanners 39 are mounted on the fixing base 31, one scanner 39 is correspondingly disposed on each uncovering mechanism 33, and the scanner 39 is used for reading the bar code on the sampling tube 200 corresponding to the uncovering mechanism 33. In this manner, information collection for each sampling tube 200 is facilitated.

An embodiment of the present application further provides a clamping device 20 included in the cup dispensing system 100 for clamping the sampling tube 200.

The working principle of the clamping device 20 and the cup separating system 100 provided by the embodiment of the application is as follows:

the sampling tube 200 is "proto-tube capped" onto the sample carrier 60 and the uncapping device 30 is controlled to move relative to the mount 10 above the sample carrier 60.

The third driving member 34 of the cap removing device 30 drives the movable base 32 to move downward in the second direction relative to the fixed base 31, the cap removing member 331 grips the sampling tube 200, the barcode scanner 39 scans the barcode on the sampling tube 200, and then the cap removing device 30 moves above the gripping device 20 relative to the mounting frame 10.

The uncapping device 30 places a plurality of sampling tubes 200 on the clamping device 20, each group of clamping assemblies 22 of the clamping device 20 respectively clamp the tube body of one sampling tube 200, and the uncapping device 30 clamps the cover body of the sampling tube 200 to unscrew the cover.

The pipetting device 40 is moved relative to the mounting rack 10 above the consumable carrier 70 to load the pipette tips 50. The pipetting device 40 is then moved relative to the mounting rack 10 above the clamping device 20 and the sample in the sampling tube 200 is aspirated by the pipette tip 50 and then transferred to the deep hole plate 80 on the consumable carrier 70.

The cap opening device 30 moves above the clamping device 20 and screws the cap body onto the tube body, thereby closing the cap. The pipetting device 40 unloads the pipette tips 50 into the waste tip collection box 90.

The clamping device 20 and the cup separating system 100 provided by the embodiment of the application have the following beneficial effects:

1. in the clamping device 20, the first driving member 23 drives one clamping block 221 of the clamping assembly 22 to move, and the second driving member 24 drives the other clamping block 221 of the clamping assembly 22 to move, so that the two clamping blocks 221 are controlled to simultaneously clamp the sampling tube 200 from two sides of the sampling tube 200 in the first direction, and compared with the prior art, the eccentric phenomenon and the deviation phenomenon are reduced, the tube opening of the sampling tube 200 is conveniently aligned with the pipette tip 50 loaded by the cover opening device 30 or the pipetting device 40 above, and the subsequent cover screwing operation and pipetting operation are convenient.

2. The two clamping blocks 221 of the clamping assembly 22 are driven by the first driving member 23 and the second driving member 24, respectively, so as to facilitate independent control of the two clamping blocks 221 of the clamping assembly 22.

3. One of the clamping blocks 221 and the connecting block 29 on the first guide bar 210 can move relative to the first guide bar 210, so that the clamping blocks 221 mounted on the first and second connecting plates move relative thereto, avoiding clamping the thicker sampling tube 200. And when the clamping assembly 22 releases the sampling tube 200, the first elastic member 240 resets the clamping block 221 or the connecting block 29, which moves relative to the first guide bar 210.

4. The second elastic part 37 of the cap opening device 30 can avoid crushing the sampling tubes 200 with higher height, and ensure the success rate of opening and closing the caps of a plurality of sampling tubes 200 at the same time. And the second elastic member 37 can be used for the restoration of the door opening mechanism 33 when the door opening or closing action is completed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A clamping device, characterized in that the clamping device comprises:

the mounting seat (21) is provided with a clamping position for placing the sampling tube (200);

the clamping assembly (22) is arranged corresponding to the clamping position, and the clamping assembly (22) comprises two clamping blocks (221);

a first driving piece (23) and a second driving piece (24) which are installed on the installation seat (21), one clamping block (221) in the clamping assembly (22) is connected with the first driving piece (23), and the other clamping block (221) is connected with the second driving piece (24);

the first driving piece (23) and the second driving piece (24) are used for respectively driving the two clamping blocks (221) to move towards or away from each other so that the two clamping blocks (221) clamp the sampling tube (200) or loosen the sampling tube (200) from two sides of the sampling tube (200) placed in the clamping position in the first direction.

2. The clamping device as claimed in claim 1, characterized in that the mounting seat (21) is provided with a raised portion (25), and the clamping position is a placement groove (251) which is opened on the raised portion (25).

3. Clamping device according to claim 1, characterized in that the two clamping blocks (221) of the clamping assembly (22) each have a clamping mouth (2211) for clamping the sampling tube (200) on the side facing each other in the first direction.

4. The clamping arrangement as claimed in claim 1, characterized in that the two clamping blocks (221) of the clamping assembly (22) are at equal distances from the centre of the clamping location;

the first driving piece (23) and the second driving piece (24) are controlled to move synchronously to drive the two clamping blocks (221) of the clamping assembly (22) to synchronously clamp the sampling tube (200).

5. The clamping device as claimed in any one of claims 1 to 4, characterized in that a plurality of said clamping positions are provided on said mounting seat (21) at intervals in said first direction; the number of the clamping assemblies (22) is equal to that of the clamping positions and corresponds to that of the clamping positions one by one;

the clamping device further comprises two connecting plates (26) extending in the first direction, wherein one of the connecting plates (26) is connected with the first driving element (23), and the other connecting plate (26) is connected with the second driving element (24); the clamping block (221) of all the clamping assemblies (22) located on one side in the first direction is connected with a connecting plate (26) connected with the first driving piece (23), and the clamping block (221) of all the clamping assemblies (22) located on the other side in the first direction is connected with a connecting plate (26) connected with the second driving piece (24).

6. Clamping device according to claim 5, characterized in that one of the mounting seat (21) and the connecting plate (26) is provided with a first guide rail (27) extending in the first direction, and the other is provided with a first slide (28), the first slide (28) being in sliding engagement with the first guide rail (27).

7. The clamping device as recited in claim 5, characterized in that it further comprises a plurality of connecting blocks (29), each clamping block (221) being connected to the connecting plate (26) by one of said connecting blocks (29).

8. The clamping device as claimed in claim 7, further comprising a plurality of first guide rods (210) and a plurality of first elastic members (240), wherein each clamping block (221) and the corresponding connecting block (29) are provided with the first guide rods (210) in a penetrating manner; the first elastic piece (240) is arranged between each connecting block (29) and each clamping block (221);

one of the connecting block (29) and the clamping block (221) is movable in the first direction relative to the first guide rod (210) threaded therethrough to compress the first elastic member (240).

9. The clamping device according to claim 8, wherein the first guide rod (210) comprises a first rod body (220) and a first limiting portion (230), the first rod body (220) is arranged through the connecting block (29), the first elastic member (240) and the clamping block (221), and the first limiting portion (230) is arranged at one end of the first rod body (220) penetrating through the connecting block (29);

the first rod body (220) is fixedly connected with the clamping block (221), and the connecting block (29) is movably arranged between the first elastic piece (240) and the first limiting part (230).

10. A dispensing cup system (100), comprising:

a mounting frame (10);

the clamping device according to any one of claims 1 to 9, which is mounted on the mounting frame (10) by means of the mounting seat (21);

an uncovering device (30) movably mounted on the mounting frame (10), wherein the uncovering device (30) can be controllably moved to the upper part of the clamping device for uncovering and closing the sampling tube (200) clamped on the clamping device;

and the liquid transfer device (40) is movably arranged on the mounting rack (10), and the liquid transfer device (40) can be controllably moved to the position above the clamping device so as to suck the sample in the sampling tube (200) through the liquid transfer gun head (50).

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