CN211537542U - Blending device and sample analyzer - Google Patents
Blending device and sample analyzer Download PDFInfo
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- CN211537542U CN211537542U CN201922120094.7U CN201922120094U CN211537542U CN 211537542 U CN211537542 U CN 211537542U CN 201922120094 U CN201922120094 U CN 201922120094U CN 211537542 U CN211537542 U CN 211537542U
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Abstract
The utility model provides a mixing device and sample analyzer, the mixing device includes: the clamping mechanism is used for clamping the reaction cup; the limiting mechanism is connected with the clamping mechanism; the first driving mechanism is connected with the limiting mechanism and drives the limiting mechanism to be far away from or close to the reaction cup along the vertical direction; the second driving mechanism comprises a transmission piece and a driving piece for outputting the rotational kinetic energy, and the driving piece is eccentrically connected with the transmission piece; the transmission part drives the clamping mechanism to move through the limiting mechanism, and the limiting mechanism limits the clamping mechanism to move in the horizontal plane. Therefore, the rotary kinetic energy is output to the limiting mechanism through the second driving mechanism, the translational kinetic energy is output to the limiting mechanism through the first driving mechanism, the obtained kinetic energy is transferred to the clamping mechanism after being converted by the limiting mechanism, the clamping mechanism can do rotary motion in the horizontal plane while moving in the vertical direction, the clamping mechanism does not incline or turn over, the directional control effect is achieved, and the movement of the clamping mechanism is more regular and controllable.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, more specifically say, relate to a mixing device and sample analyzer.
Background
In the medical testing industry, many test items need to be tested by medical testing instruments, such as biochemical, immunological, blood coagulation and other test items, before testing, the testing instruments usually need to perform the action of mixing the sample and the reagent to ensure the accuracy and reliability of the test result, wherein the mixing device is used for performing the mixing action.
At present, a blending device of a sample analyzer mostly adopts three blending modes of swinging blending, vibrating blending and rotating blending, and the blending device adopting rotating blending mostly has the problems of poor regularity and controllability of rotating action and influences the completion quality and efficiency of the blending action.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mixing device to the regularity and the controllability of mixing device's mixing action are poor in solving present sample analysis appearance, lead to mixing quality and efficiency to receive the technical problem who influences.
In order to achieve the above object, the utility model adopts the following technical scheme: providing a blending device, the blending device includes:
the clamping mechanism is used for clamping the reaction cup;
the limiting mechanism is connected with the clamping mechanism;
the first driving mechanism is connected with the limiting mechanism and drives the limiting mechanism to be far away from or close to the reaction cup along the vertical direction; and
the second driving mechanism comprises a transmission piece and a driving piece for outputting rotational kinetic energy, and the driving piece is eccentrically connected with the transmission piece;
the transmission part drives the clamping mechanism to move through the limiting mechanism, and the limiting mechanism limits the clamping mechanism to move in the horizontal plane.
Furthermore, the limiting mechanism comprises a directional external member connected with the first driving mechanism and a rotating plate connected with the clamping mechanism and movably sleeved on the periphery of the transmission member, and the directional external member is connected with the rotating plate and limits the rotating plate to move in a horizontal plane.
Furthermore, the orientation kit comprises a sleeve body provided with a mounting groove and an eccentric wheel rotationally connected with the sleeve body; the rotating plate is positioned in the mounting groove, surrounds the periphery of the eccentric wheel and is in contact fit with the outer circumferential surface of the eccentric wheel.
Furthermore, the sleeve body comprises a mounting seat and a pressing plate, the pressing plate is connected with the mounting seat and encloses to form the mounting groove, and the eccentric wheel is rotatably connected with the pressing plate.
Further, the transmission piece comprises a first shaft section extending along the vertical direction, and the first shaft section is eccentrically connected with the driving piece;
the transmission part further comprises a second shaft section extending in the vertical direction, the second shaft section is coaxial with the driving part, and the second shaft section is located below the first shaft section.
Further, the transmission member further comprises a transition section connected between the first shaft section and the second shaft section, and the horizontal cross section of the transition section is smaller than the horizontal cross sections of the first shaft section and the second shaft section.
Further, the transmission part further comprises two circular truncated cone structures, and the transition section is connected with the first shaft section and the second shaft section through the two circular truncated cone structures respectively.
Furthermore, the first driving mechanism comprises a driving element and a transmission assembly connected to the driving element, and the transmission assembly is connected to the limiting mechanism.
The blending device further comprises a rack and a first induction piece, the limiting mechanism is arranged in the rack, and the first induction piece is arranged on the rack and used for inducing whether the reaction cup is clamped by the clamping mechanism;
the blending device further comprises a second induction piece, the limiting mechanism is arranged in the rack, and the second induction piece is arranged on the rack and used for inducing the position of the clamping mechanism.
The utility model also provides a sample analyzer, sample analyzer includes controller, detector and foretell mixing device, the controller with second actuating mechanism reaches first actuating mechanism electric connection, the detector is used for detecting reaction liquid in the reaction cup.
The utility model provides a mixing device's beneficial effect lies in: the utility model provides a mixing device, through second actuating mechanism to stop gear output rotation kinetic energy, through first actuating mechanism to stop gear output translation kinetic energy, so that stop gear transmits the kinetic energy conversion back transmission that acquires for fixture, make fixture be rotary motion in the horizontal plane when removing along vertical direction, thereby accomplish and grab the cup, the mixing and put the action of cup, can understand, because stop gear limits fixture and moves in the horizontal plane, it is controllable to make fixture's motion law more, more can not take place slope or upset scheduling problem, thereby ensure quality and efficiency that the mixing action was accomplished.
The utility model provides a medical treatment inspection instrument has included above-mentioned mixing device, therefore possesses whole beneficial effect of this mixing device, and here is no longer repeated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a blending device provided in an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of a blending device according to an embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a blending device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the exploded structure of the diagram of FIG. 3;
FIG. 5 is a schematic structural diagram of a transmission member used in an embodiment of the present invention;
fig. 6 is a block diagram schematically illustrating a structure of a sample analyzer according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10. a blending device; 20. a reaction cup; 30. a controller;
100. a frame; 110. a first side plate; 120. a second side plate; 130. a top plate; 140. a base plate;
200. a second drive mechanism; 210. a drive member; 220. a transmission member; 221. a first shaft section; 222. a second shaft section; 223. a transition section; 224. a circular truncated cone structure;
300. a first drive mechanism; 310. a drive element; 320. a transmission assembly; 321. a synchronous belt; 322. a driving pulley; 323. a driven pulley;
400. a clamping mechanism; 410. a connecting arm; 420. an elastic member; 430. a clamping jaw; 440. clamping a clamping groove;
500. a limiting mechanism;
510. an orientation kit; 511. a sleeve body; 5111. a mounting seat; 51111. a mating post; 51112. mounting grooves; 5112. pressing a plate; 51121. a mating groove; 512. an eccentric wheel; 513. a pin shaft;
520. rotating the plate; 521. a first end; 522. a second end; 523. a first mating hole; 524. a second mating hole;
600. a guide post;
700. a first sensing member;
800. a second sensing member.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The embodiment of the utility model provides a sample analyzer, this sample analyzer include controller 30, detector 40 and mixing device 10. Wherein, the detector 40 is used for detecting and analyzing the reaction liquid in the reaction cup 20, and performing at least one kind of analysis items including biochemistry, immunity and blood coagulation; the blending device 10 is used for blending the reaction solution so as to facilitate the detection of the detector 40; the controller 30 is electrically connected to the detector 40 and the blending device 10, respectively, and is used for controlling the operation of the blending device 10 and the specific operation of the detector 40.
Of course, in other embodiments of the present invention, the sample analyzer may also be used for other types of analysis and testing items, and is not limited herein.
The kneading apparatus 10 will be described in detail below.
Referring to fig. 1 to 5, a blending device 10 according to an embodiment of the present invention includes a frame 100, a second driving mechanism 200, a first driving mechanism 300, a clamping mechanism 400, and a limiting mechanism 500. Wherein, second actuating mechanism 200, first actuating mechanism 300 all set up on frame 100, specifically are: the rack 100 comprises a first side plate 110 and a second side plate 120 which are oppositely arranged in the horizontal direction, and a top plate 130 and a bottom plate 140 which are oppositely arranged in the vertical direction, wherein the first side plate 110 and the second side plate 120 are connected between the top plate 130 and the bottom plate 140; the first driving mechanism 300 is connected to the first side plate 110, and the second driving mechanism 200 is connected to the top plate 130; the limiting mechanism 500 is connected with the clamping mechanism 400, the second driving mechanism 200 drives the clamping mechanism 400 to rotate through the limiting mechanism 500 so as to uniformly mix the reaction liquid in the reaction cup 20, and the first driving mechanism 300 is connected with the limiting mechanism 500 so as to drive the clamping mechanism 400 to move up and down.
The second driving mechanism 200 includes a driving member 220 and a driving member 210, wherein the driving member 210 outputs rotational kinetic energy and is eccentrically connected to the driving member 220, so that the driving member 220 performs eccentric rotation with respect to the rotational center of the driving member 210; the first driving mechanism 300 drives the limiting mechanism 500 to move in the vertical direction to approach or separate from the reaction cup 20. It is understood that when the limiting mechanism 500 is close to the reaction cup 20, the holding mechanism 400 can be used to hold or place the reaction cup 20, and when the limiting mechanism 500 is far away from the reaction cup 20, the holding mechanism 400 can be used to move the reaction cup 20 to a certain height far away from the reaction cup 20; the transmission member 220 drives the clamping mechanism 400 to perform a rotation motion through the limiting mechanism 500, and the limiting mechanism 500 limits the clamping mechanism 400 in a horizontal plane while transmitting the kinetic energy output by the driving member 210 and the first driving mechanism 300, so that the rotation motion of the clamping mechanism 400 is more regular and controllable.
Specifically, the limiting mechanism 500 includes a rotating plate 520 and an orientation kit 510, wherein the orientation kit 510 is connected to the first driving mechanism 300, so as to be driven by the first driving mechanism 300 to move in a vertical direction; the rotating plate 520 is connected to the directional sleeve 510 and movably sleeved on the periphery of the transmission member 220, so that the rotating plate 520 is driven by the transmission member 220 to rotate and simultaneously form a vertical displacement; in addition, the orientation kit 510 can limit the rotation plate 520 to move in the horizontal plane, that is, the rotation plate 520 is brought to any height by the orientation kit 510, and the rotation plate 520 does not incline or turn over, so that the movement rule of the clamping mechanism 400 connected to the rotation plate 520 is simpler and clearer and is more controllable.
The orientation kit 510 includes an eccentric wheel 512 and a sleeve body 511, the eccentric wheel 512 is rotatably connected with the sleeve body 511 by a pin 513, it can be understood that the pin 513 deviates from the central line of the eccentric wheel 512, a mounting groove 51112 extending along the horizontal direction is arranged in the sleeve body 511, and a rotating plate 520 is arranged in the mounting groove 51112 and surrounds the periphery of the eccentric wheel 512. Specifically, a first mating hole 523 is formed in the rotating plate 520, the eccentric wheel 512 is disposed in the first mating hole 523, and the outer circumferential surface of the eccentric wheel 512 is in contact fit with the inner wall of the first mating hole 523; the rotating plate 520 includes a first end 521 and a second end 522 that are disposed oppositely, the first end 521 and the second end 522 both extend out of the mounting groove 51112, the first end 521 is sleeved on the periphery of the transmission member 220, the second end 522 is fixedly connected to the clamping mechanism 400, and the first engaging hole 523 is disposed between the first end 521 and the second end 522. Thus, under the driving of the rotating plate 520, the eccentric wheel 512 rotates around the pin 513, and under the limitation of the eccentric wheel 512, the movement of the rotating plate 520 in the horizontal plane becomes more regular, and the movement track of the second end 522 can be obtained through parameters such as the eccentricity of the eccentric wheel 512 and the pin 513 by a simpler mathematical model, so that the accurate movement track of the clamping mechanism 400 can be obtained.
It is understood that the first engaging hole 523 may be a through hole or a blind hole, and the inner wall of the hole is capable of contacting and engaging with the outer circumferential surface of the eccentric 512, which is not limited herein.
In addition, in order to ensure that the movement of the orientation kit 510 along the vertical direction is not affected by the movement of the transmission member 220 and the rotating plate 520, the blending device 10 is further provided with a guide post 600, and two opposite ends of the guide post 600 are respectively connected with the top plate 130 and the bottom plate 140 and movably penetrate through the sleeve body 511. In this embodiment, two guide posts 600 are provided and respectively penetrate through two opposite ends of the sheath 511, so that the design is helpful for the stress balance of the sheath 511, thereby stabilizing the movement of the sheath 511 and improving the accuracy of movement control.
Of course, in other embodiments of the present invention, the number of the guiding pillars may also be adjusted according to the need, for example, 1, 3, 4, etc., which is not limited herein.
The cover body 511 comprises a mounting seat 5111 and a pressing plate 5112, wherein the mounting seat 5111 is connected with the pressing plate 5112 and encloses to form a mounting groove 51112. Specifically, in this embodiment, a concave portion is formed on the mounting seat 5111, the pressing plate 5112 covers the concave portion to form the mounting groove 51112, and the pressing plate 5112 and the mounting seat 5111 are both sleeved on the outer periphery of the guide rod. Specifically, two cooperation grooves 51121 have been seted up to the relative both sides of clamp plate 5112, and the relative both sides of mount pad 5111 are equipped with two cooperation posts 51111 that extend along vertical direction, and two cooperation posts 51111 set up respectively in two cooperation grooves 51121, and all are equipped with the through-hole on two cooperation posts 51111, and two above-mentioned guide posts 600 wear to locate respectively in two through-holes. Thus, the structure of the sleeve body 511 is more stable and simple, and the processing and the assembly are convenient.
In another embodiment, the specific structure of the limiting mechanism 500 may be replaced by:
In summary, the second driving mechanism 200 outputs rotational kinetic energy to the limiting mechanism 500, the first driving mechanism 300 outputs translational kinetic energy to the limiting mechanism 500, and the limiting mechanism 500 converts the obtained kinetic energy and transmits the converted kinetic energy to the clamping mechanism 400, so that the clamping mechanism 400 can move in the vertical direction and rotate in the horizontal plane, and does not tilt or turn, thereby playing a role in directional control and enabling the movement of the clamping mechanism 400 to be more regular and controllable.
In this embodiment, please refer to fig. 1, 3 to 5, the driving member 210 is a first motor, the first motor is electrically connected to the controller, the transmission member 220 is a crankshaft, the rotating plate 520 is movably sleeved on the periphery of the crankshaft, so that the rotating plate can eccentrically move relative to the output shaft of the first motor under the driving of the crankshaft, and the crankshaft and the rotating plate 520 are matched only by forming a through hole in the rotating plate 520, which is very simple in structure.
Specifically, the transmission member 220 includes a first shaft section 221, a transition section 223 and a second shaft section 222 connected in sequence, and the first shaft section 221 and the second shaft section 222 both extend in the vertical direction. The first shaft section 221 is eccentrically connected with an output shaft of the first motor, that is, a rotation center of the output shaft of the first motor and a central axis of the first shaft section 221 are deviated from each other and are not collinear; one end of the second shaft section 222 is connected to the transition section 223, the other end is rotatably connected to the base plate 140, and the central axis of the second shaft section 222 is collinear with the rotation center of the output shaft of the first motor. Preferably, the other end of the second shaft section 222 is rotatably coupled to the base plate 140 of the housing 100 by a bearing.
In addition, the transition section 223 has a horizontal cross-section that is smaller than the horizontal cross-sections of the first and second shaft sections 221 and 222. In the present embodiment, the first shaft section 221, the second shaft section 222 and the transition section 223 are all cylindrical shafts, so it can also be expressed that the shaft diameter of the transition section 223 is smaller than the shaft diameters of the first shaft section 221 and the second shaft section 222; this configuration allows the rotating plate 520 to move smoothly between the first shaft section 221 and the second end 522, ensuring that the rotating plate 520 is not interfered by the transition section 223 during the up-and-down movement.
More specifically, the transmission member 220 further includes two circular truncated cone structures 224, and opposite ends of the transition section 223 are respectively connected to the first shaft section 221 and the second shaft section 222 through the two circular truncated cone structures 224. Therefore, the stress concentration at the joint of the transition section 223 and the first shaft section 221 and the second shaft section 222 can be effectively reduced, the overall structural strength of the transmission member 220 is improved, and the stability and the service life of the blending device 10 are further improved.
The first end 521 of the rotating plate 520 is provided with a second fitting hole 524, and the transmission element 220 movably penetrates through the second fitting hole 524, that is, the rotating disc is movably sleeved on the periphery of the transmission element 220, and the rotating disc driven by the sleeve body 511 can move from the first shaft section 221 to the second shaft section 222 of the transmission element 220, and certainly can also move reversely to reset.
It can be understood that, after the reaction cup 20 is clamped by the clamping mechanism 400, in the process that the rotating plate 520 ascends along with the second driving mechanism 200, the rotating plate 520 can sequentially contact the second shaft section 222, the transition section 223 and the first shaft section 221, and since the central axis of the second shaft section 222 is collinear with the central axis of the output shaft of the first motor, the rotating plate 520 does not move in the horizontal direction no matter whether the first motor works or not and the second shaft section 222 rotates or not, that is, the rotating plate is used for lifting the reaction cup 20 to keep the reaction away from the reaction cup 20; subsequently, the rotating plate 520 is in contact with the transition section 223, the transition section 223 is a transition structure from the first shaft section 221 to the second shaft section 222, and mainly plays a role in connection and transition, the size of the transition section is short in the vertical direction, when the rotating plate 520 is in contact with the transition section 223, the rotating plate 520 swings and gradually displaces in the horizontal direction until the rotating plate 520 completely transfers to the periphery of the first shaft section 221, and because the first shaft section 221 is eccentrically connected with the output shaft of the first motor, if the first motor rotates at the moment, the rotating plate 520 which surrounds the periphery of the first shaft section 221 and is in contact with the first shaft section 221 can move back and forth around the pin 513, so that the clamping mechanism 400 is driven to do rotary motion, and the uniform swinging motion is completed.
After the shaking motion is completed, the sleeve body 511 is driven by the first driving mechanism 300 to descend, so that the rotating plate 520 returns to the state of contacting with the second shaft section 222, and the second shaft section 222 is coaxial with the output shaft of the first motor, so that no additional motion control is needed in the process, and the reaction cup 20 can automatically return to the position right opposite to the position where the reaction cup 20 is placed, thereby greatly facilitating the placing of the reaction cup 20 by the clamping mechanism 400, simultaneously reducing the time required for placing the cup, and improving the mixing efficiency.
In the present embodiment, referring to fig. 1 and fig. 2, the first driving mechanism 300 includes a driving element 310 and a transmission assembly 320 connected to the driving element 310, wherein the transmission assembly 320 is connected to the limiting mechanism 500; the driving element 310 outputs rotational kinetic energy, and the transmission assembly 320 converts the rotational kinetic energy into translational kinetic energy and transmits the translational kinetic energy to the limiting mechanism 500. The mechanism capable of providing the rotational kinetic energy is more and more mature in the field of current mechanical design, so that the selection and purchase are both more convenient, and the price is also lower.
In this embodiment, the driving element 310 is a second motor, the transmission assembly 320 is a pulley mechanism, and includes a timing belt 321, a driving pulley 322 and a driven pulley 323, the driving pulley 322 is connected to an output shaft of the second motor, the driving pulley 322 and the driven pulley 323 are distributed at intervals in a vertical direction, and the timing belt 321 is wound around the peripheries of the driving pulley 322 and the driven pulley 323 and fixedly connected to the pressure plate 5112. The driving pulley 322 is driven by the second motor to rotate coaxially with the output shaft thereof, so as to drive the synchronous belt 321 and the driven pulley 323 to move, so that the pressing plate 5112 forms a vertical displacement along with the synchronous belt 321, thereby approaching or departing from the reaction cup 20. The belt wheel mechanism has low cost, low motion noise and convenient assembly.
In another embodiment, the transmission assembly 320 may also be replaced by a lead screw and nut mechanism, which includes a lead screw along the vertical direction, and a nut block screwed on the outer circumference of the lead screw; the second motor is connected to one end of the screw rod and drives the screw rod to rotate around the vertical direction, and the sleeve body 511 is fixedly connected with the nut block. Therefore, the output shaft of the second motor rotates to drive the nut block to move upwards or downwards along the vertical direction, so as to drive the limiting mechanism 500 and the tooth mechanism to be far away from or close to the reaction cup 20.
In another embodiment, the transmission assembly 320 may be replaced by a rack-and-pinion mechanism, which includes a gear connected to the second motor and a rack engaged with the gear and extending in a vertical direction, and the housing 511 is connected to the rack. The second motor rotates the drive gear and rotates, and then the drive rack moves along vertical direction to drive the mixing subassembly and reciprocate.
In another embodiment, the first driving mechanism 300 can be replaced by a pneumatic cylinder, which is disposed on the top plate 130 of the frame 100 and has a piston rod connected to the housing 511, so as to move the housing 511 toward or away from the reaction cup 20 between the air intake and air exhaust.
Of course, in other embodiments of the present invention, the first driving mechanism 300 may also be other types of linear motion mechanisms, which is not limited herein.
In the present embodiment, referring to fig. 1, 3 and 4, the clamping mechanism 400 includes a connecting arm 410, two clamping jaws 430 and an elastic member 420. Specifically, one end of the connecting arm 410 is connected to the second end 522 of the rotating plate 520, the other end is movably connected to the two clamping jaws 430, the two opposite ends of the elastic member 420 are respectively connected to the two clamping jaws 430, and a clamping slot 440 is left between the two clamping jaws 430. In this embodiment, the size of the clamping slot 440 is smaller than the size of the rim of the reaction cup 20, and the elastic member 420 applies force to the two clamping jaws 430; during the use process, the two clamping jaws 430 press the cup rim downwards, so that the two clamping jaws 430 move in opposite directions, thereby increasing the clamping slot 440, the elastic member 420 is stretched, and potential energy for restoring the deformation is accumulated, so that the two clamping jaws 430 tightly hold the cup rim, and the action of grabbing the reaction cup 20 is completed.
Preferably, the elastic member 420 is a tension spring extending in a linear direction. The tension spring is low in cost and easy to install.
Of course, in other embodiments of the present invention, the clamping mechanism 400 may be replaced by a clamping mechanism 400 such as a finger cylinder or a mechanical arm driven by a motor, which is not limited herein.
In this embodiment, referring to fig. 1 and fig. 2, the blending device 10 further includes a first sensing element 700 and a second sensing element 800, the first sensing element 700 and the second sensing element 800 are both electrically connected to the controller, and the first sensing element 700 is disposed on the second side plate 120 and is used for sensing the position of the clamping mechanism 400, so as to determine whether the clamping mechanism 400 is reset, and facilitate the controller to control and adjust the position of blending; the second sensing member 800 is disposed on the bottom plate 140 to sense whether the chuck jaws 430 hold the reaction cup 20. In this embodiment, the first sensing member 700 and the second sensing member 800 are optical coupling sensing devices, which mainly use the principle of light reflection to sense an object. Of course, in other embodiments of the present invention, the first sensing member 700 and the second sensing member 800 may also be replaced by an image sensing device, and the position of the sensing object is far away from the sensing object through image vision, which is not limited herein.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Mixing device, its characterized in that, mixing device includes:
the clamping mechanism is used for clamping the reaction cup;
the limiting mechanism is connected with the clamping mechanism;
the first driving mechanism is connected with the limiting mechanism and drives the limiting mechanism to be far away from or close to the reaction cup along the vertical direction; and
the second driving mechanism comprises a transmission piece and a driving piece for outputting rotational kinetic energy, and the driving piece is eccentrically connected with the transmission piece;
the transmission part drives the clamping mechanism to move through the limiting mechanism, and the limiting mechanism limits the clamping mechanism to move in the horizontal plane.
2. The blending apparatus of claim 1, wherein: the limiting mechanism comprises a directional external member connected with the first driving mechanism and a rotating plate connected with the clamping mechanism and movably sleeved on the periphery of the transmission member, and the directional external member is connected with the rotating plate and limits the rotating plate to move in a horizontal plane.
3. The blending apparatus of claim 2, wherein: the orientation kit comprises a sleeve body provided with a mounting groove and an eccentric wheel rotationally connected with the sleeve body; the rotating plate is positioned in the mounting groove, surrounds the periphery of the eccentric wheel and is in contact fit with the outer circumferential surface of the eccentric wheel.
4. The blending apparatus of claim 3, wherein: the sleeve body comprises a mounting seat and a pressing plate, the pressing plate is connected with the mounting seat and encloses to form the mounting groove, and the eccentric wheel is rotatably connected with the pressing plate.
5. The blending apparatus of any of claims 1 to 4, wherein: the transmission piece comprises a first shaft section extending along the vertical direction, and the first shaft section is eccentrically connected with the driving piece;
the transmission part further comprises a second shaft section extending in the vertical direction, the second shaft section is coaxial with the driving part, and the second shaft section is located below the first shaft section.
6. The blending apparatus of claim 5, wherein: the transmission part further comprises a transition section connected between the first shaft section and the second shaft section, and the horizontal section of the transition section is smaller than the horizontal sections of the first shaft section and the second shaft section.
7. The blending apparatus of claim 6, wherein: the transmission part further comprises two circular truncated cone structures, and the transition section is connected with the first shaft section and the second shaft section through the two circular truncated cone structures respectively.
8. The blending apparatus of any of claims 2 to 4, wherein: the first driving mechanism comprises a driving element and a transmission assembly connected to the driving element, and the transmission assembly is connected to the limiting mechanism.
9. The blending apparatus of claim 1, wherein: the blending device also comprises a rack and a first induction piece, the limiting mechanism is arranged in the rack, and the first induction piece is arranged on the rack and used for inducing whether the reaction cup is clamped by the clamping mechanism;
the blending device further comprises a second induction piece, the limiting mechanism is arranged in the rack, and the second induction piece is arranged on the rack and used for inducing the position of the clamping mechanism.
10. Sample analyzer, its characterized in that: the sample analyzer comprises a controller, a detector and the blending device of any one of claims 1 to 9, wherein the controller is electrically connected with the first driving mechanism and the second driving mechanism, and the detector is used for detecting the reaction liquid in the reaction cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922120094.7U CN211537542U (en) | 2019-11-29 | 2019-11-29 | Blending device and sample analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922120094.7U CN211537542U (en) | 2019-11-29 | 2019-11-29 | Blending device and sample analyzer |
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| CN211537542U true CN211537542U (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558488A (en) * | 2020-11-27 | 2022-05-31 | 深圳市帝迈生物技术有限公司 | Blending device, blending method and sample analyzer |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558488A (en) * | 2020-11-27 | 2022-05-31 | 深圳市帝迈生物技术有限公司 | Blending device, blending method and sample analyzer |
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