CN211603219U

CN211603219U - Sample adding assembly and light detection equipment

Info

Publication number: CN211603219U
Application number: CN201921258842.1U
Authority: CN
Inventors: 吴文超; 鲍茂然; 王海
Original assignee: Medcaptain Medical Technology Co Ltd
Current assignee: Medcaptain Medical Technology Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-09-29
Anticipated expiration: 2029-07-31

Abstract

The application discloses application of sample subassembly. The sample adding assembly comprises a first driving part and a moving part, and the first driving part is used for driving the moving part to move; the moving part comprises a second driving part, a suction and discharge part and a grabbing part, the second driving part and the grabbing part are respectively positioned at two ends of the back of the moving part, the suction and discharge part is positioned between the second driving part and the grabbing part, and one end of the grabbing part, which is far away from the suction and discharge part, is provided with a connecting rod which is used for grabbing a target object; the grabbing part is provided with a through hole extending in the vertical direction, the through hole penetrates through the connecting rod, part of the suction and discharge part is contained in the through hole and is in sealing connection with the hole wall of the through hole, and the second driving part is used for driving the suction and discharge part to move in the vertical direction relative to the grabbing part. The application provides a sample application subassembly is integrated with snatchs target object and absorbs and discharge target liquid in function of an organic whole. The application also provides an optical detection device comprising the sample adding assembly.

Description

Sample adding assembly and light detection equipment

Technical Field

The application relates to a light detector, especially relates to a application of sample subassembly and optical detection equipment.

Background

The optical detection device is widely used for detecting optical properties of an object to be detected, such as photon counting, extremely weak optical signals, chemiluminescence, bioluminescence and the like of the object to be detected. Along with the continuous development of science and technology, the automation level of optical detection equipment is higher and higher, and manual operation in the detection process is reduced to a great extent.

In order to make the optical detection device more automatic, a grabbing structure for automatically grabbing a target object and a sample adding structure for absorbing and discharging target liquid are arranged in the optical detection device. In traditional light detection equipment, snatch the structure and be two independent structures each other with the application of sample structure, whole occupation space is great.

SUMMERY OF THE UTILITY MODEL

The application provides a application of sample subassembly and optical detection equipment. The sample adding component integrates the functions of grabbing a target object and absorbing and discharging target liquid, occupies a small space, is beneficial to miniaturization of optical detection equipment, and reduces the cost of the optical detection equipment.

The sample adding assembly comprises a first driving part and a moving part, and the first driving part is used for driving the moving part to move;

the moving part comprises a second driving part, a suction and discharge part and a grabbing part, the second driving part and the grabbing part are respectively positioned at two ends of the back of the moving part, the suction and discharge part is positioned between the second driving part and the grabbing part, and one end of the grabbing part, which is far away from the suction and discharge part, is provided with a connecting rod which is used for grabbing a target object;

the grabbing part is provided with a through hole extending in the vertical direction, the through hole penetrates through the connecting rod, part of the suction and discharge part is contained in the through hole and is in sealing connection with the hole wall of the through hole, and the second driving part is used for driving the suction and discharge part to move along the vertical direction relative to the grabbing part.

In one embodiment, the gripper further comprises an unloading cylinder and a spring, the unloading cylinder being located at the periphery of the connecting rod, the unloading cylinder contacting the spring;

when the target object is installed on the connecting rod, the unloading cylinder is located between the target object and the spring, the target object abuts against the unloading cylinder to compress the spring, and one end, far away from the spring, of the connecting rod is embedded into the target object.

In one embodiment, the suction and discharge portion includes a movable block and a movable rod connected to the movable block, the second driving portion drives the movable block and the movable rod to move in a vertical direction, the movable rod is connected between the movable block and the first end, one end of the movable rod is accommodated in the first end and blocks the through hole, and the other end of the movable rod is accommodated in the movable block;

when the movable rod is located at a first position relative to the first end, the distance between the movable rod and the connecting rod is a first distance; when the second driving part drives the movable rod to move from the first position to the second position relative to the first end, the distance between the movable rod and the connecting rod is a second distance, and the second distance is larger than the first distance; when the second driving part drives the movable rod to move from the second position to a third position relative to the first end, the distance between the movable rod and the connecting rod is a third distance, and the third distance is smaller than the second distance.

In one embodiment, the grabbing part further comprises an unloading rod and an unloading plate, the unloading rod is connected between the unloading plate and the unloading barrel, and the spring is arranged around the unloading rod;

when the second driving portion drives the movable rod to move from the third position to the fourth position relative to the first end, the distance between the movable rod and the connecting rod is a fourth distance, the fourth distance is smaller than the third distance, the movable block abuts against the unloading plate, the unloading rod abuts against the unloading barrel, and the target object falls off from the connecting rod.

In one embodiment, the moving part further comprises a first sensor and a first blocking piece, and the first blocking piece is fixedly connected with the unloading plate; when the target object is arranged on the connecting rod, the unloading plate drives the first blocking piece to move so as to block part of the first sensor, and the first sensor cannot receive optical signals.

In one embodiment, the moving part further comprises a second sensor and a second blocking piece, and the second blocking piece is fixedly connected with the movable block; when the movable rod moves from the third position to the fourth position relative to the first end, the movable block drives the second stopper to move so as to shield part of the second sensor.

In one embodiment, the mobile part further comprises an alarm which alarms when the mobile part is struck.

In one embodiment, the sample adding assembly further includes a first sliding portion and a second sliding portion, the first driving portion drives the moving portion to move along a first direction relative to the first sliding portion, the first sliding portion is slidably connected to the second sliding portion, the first sliding portion moves along a second direction relative to the second sliding portion, the second direction is different from the first direction, and the first sliding portion is fixedly connected to the moving portion.

In one embodiment, the sample adding assembly further includes a third sliding portion, the third sliding portion is slidably connected to the second sliding portion, and the second sliding portion moves along a third direction relative to the third sliding portion, where the third direction is perpendicular to the second direction.

On the other hand, this application still provides a light detection equipment. The light detection device comprises a shell and the sample adding component, wherein the sample adding component is arranged on the shell.

In this application embodiment, the removal portion of application of sample subassembly can move under the drive of first drive division for the portion of snatching of removal portion can snatch the target object, and the suction and discharge portion in the removal portion passes through the drive effect of second drive division, so that suction and discharge portion and the portion of snatching accomplish piston motion, has changed the pressure in the through-hole, thereby makes the removal portion can absorb and discharge target liquid. That is, the application of sample subassembly is integrated with the function of snatching the target object and absorbing and discharging target liquid in an organic whole for the occupation space of application of sample subassembly is less, is favorable to optical detection equipment's miniaturization, has also reduced optical detection equipment's cost simultaneously.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a light detection device provided herein;

FIG. 2 is a schematic view of the sample application assembly of FIG. 1 in a first use state;

FIG. 3 is a schematic view of the sample application assembly of FIG. 1 in a second use state;

FIG. 4 is a schematic structural view of the sample application assembly shown in FIG. 1 in a third use state;

FIG. 5 is a schematic cross-sectional view of the moving part shown in FIG. 2;

FIG. 6 is a schematic cross-sectional view of the moving part of FIG. 3 in one position;

FIG. 7 is a schematic cross-sectional view of the moving part of FIG. 3 in another position;

FIG. 8 is a schematic cross-sectional view of the moving part of FIG. 3 in yet another position;

FIG. 9 is a schematic cross-sectional view of the moving part of FIG. 2 in another position;

FIG. 10 is a schematic view of the structure of FIG. 3 at another angle;

FIG. 11 is a schematic view of the sample addition assembly of FIG. 1 in another embodiment.

Detailed Description

Technical solutions in embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an optical detection apparatus provided in the present application. The present application provides a light detection device 100. The light detection device 100 includes a housing 101 and a sample application assembly 102. The sample addition assembly 102 is mounted to the housing 101. The optical detection device 100 is used for detecting the optical performance of the object to be detected.

The light detection apparatus 100 can be applied to in vitro diagnostics, and can also be applied to other fields. For example, the optical detection apparatus 100 can also be applied to scientific research experiments to detect the optical performance of the object to be detected. In the embodiments provided herein, the light detection apparatus 100 is described as being applied to in vitro diagnostics. In the in vitro diagnostic process, the light detection device 100 can automatically perform the analysis detection of a specific analysis object in the analyte. The sample adding assembly 102 is a manipulator with a liquid sucking and injecting function. The manipulator can imitate some action functions of human hands and arms, and is used for grabbing, carrying objects or operating tools according to a fixed program, so that the automation of the optical detection equipment 100 is realized.

With reference to fig. 2 to 4, fig. 2 is a schematic structural view of the sample loading assembly shown in fig. 1 in a first use state; FIG. 3 is a schematic view of the sample application assembly of FIG. 1 in a second use state; FIG. 4 is a schematic structural view of the sample application assembly shown in FIG. 1 in a third use state. The sample application assembly 102 can grasp the target object 103. Wherein the target object 103 comprises a reactor and a pipette tip. The reactor is used for installing an object to be tested. The pipette tip can complete the function of absorbing and discharging the target liquid by matching with the sample adding assembly 102.

The sample adding assembly 102 includes a first driving part 21 and a moving part 22. One end of the moving part 22 may be used for connecting the reactor and the pipette tip. As shown in fig. 3, the pipette tip is attached to one end of the moving part 22 away from the first driving part 21 in one use state. As shown in fig. 4, the reactor is mounted at one end of the moving part 22 away from the first driving part 21 in another use state. Wherein the target object can be any object having the same inverted cone structure. Such as reaction cups, reaction cartridges, reagent cards, and the like. In the present application, the kind of the target object is not limited. In the present embodiment, the target object is described as a reaction cassette and a pipette tip as examples.

The first driving unit 21 drives the moving unit 22 to move. For example, the first driving unit 21 drives the moving unit 22 to move in the first direction. In the embodiment of the present application, the description is given taking the first direction as a vertical direction as an example. When the first driving part 21 drives the moving part 22 to move vertically downward, one end of the moving part 22 away from the first driving part 21 is engaged with the opening of the reactor, so that the sample adding assembly 102 grabs the reactor. When the first driving part 21 drives the moving part 22 to move vertically and downwardly, one end of the moving part 22 far away from the first driving part 21 is engaged with the opening of the pipette tip, so that the sample adding assembly 102 is matched with the pipette tip to complete absorption and discharge of the target liquid.

It can be understood that, in the embodiment of the present application, the target object 103 is fixed to the moving portion 22 by means of an engagement, so that the target object 103 can fall off from the moving portion 22 under an external force. As shown in fig. 2, the target object 103 is not attached to the moving section 22. As shown in fig. 3 and 4, when the moving portion 22 moves downward relative to the first driving portion 21, the target object 103 is mounted on the moving portion 22.

With continued reference to fig. 2, 5 and 6, fig. 5 is a schematic cross-sectional view of the moving portion 22 shown in fig. 2; fig. 6 is a schematic cross-sectional view of the moving part 22 shown in fig. 3 in one position. The moving unit 22 includes a second driving unit 221, a suction/discharge unit 222, and a grasping unit 223. The second driving portion 221 and the grasping portion 223 are respectively located at two opposite ends of the moving portion 22. The suction and discharge portion 222 is located between the second driving portion 221 and the grasping portion 223. The end of the grasping portion 223 away from the suction and discharge portion 222 is provided with a connecting rod 2233. The connecting bar 2233 is used to grasp the target object 103. In the present embodiment, the case where the connecting rod 2233 grips the pipette tip is described as an example.

As can be appreciated, the grasping portion 223 is located on a side of the suction and discharge portion 222 away from the second driving portion 221. As shown in fig. 6, when the sample addition unit 102 grasps the target object 103, one end of the grasping portion 223 facing the target object 103 is engaged with and fixed to the opening of the target object 103.

The second driving part 221 is for driving the suction and discharge part 222 to move in the vertical direction. The grasping portion 223 is provided with a through hole 2230 extending in the vertical direction. As can be appreciated, the through-hole 2230 extends from the first end 2231 of the grasping portion 223 to the second end 2232 of the grasping portion 223. The second end 2232 is away from the second driving part 221 relative to the first end 2231. The through hole 2230 penetrates the connecting rod 2233. As can be appreciated, the connecting rod 2233 is located at the second end 2232. When the target object 103 is attached to the sample addition member 102, the first end 2231 is the end of the grasping portion 223 that is away from the target object 103.

Part of the suction and discharge portion 222 is received in the through hole 2230 and is connected with the wall of the through hole 2230 in a sealing manner. The second driving part 221 is for driving the suction and discharge part 222 to move in the vertical direction with respect to the grasping part 223. When the suction and discharge portion 222 moves in the vertical direction, the suction and discharge portion 222 and the grip portion 223 complete the piston movement. As can be understood, when the target object 103 is mounted on the connecting rod 2233, the suction and discharge portion 222 moves vertically upward, so that a negative pressure is generated inside the through hole 2230, thereby sucking the target liquid. When the suction and discharge portion 222 moves vertically downward, the pressure inside the through hole 2230 is increased, thereby discharging the target liquid.

The sample adding assembly 102 has a buffer guide rail and a buffer spring. The cooperation of the buffer guide rail and the buffer spring can ensure the loading force of the moving part 22, so that the stability of the moving part 22 for grabbing the target object is good, and the consistency of the moving part 22 for grabbing the target object is ensured. And when the moving part 22 grabs the pipette tip, the moving part 22 and the pipette tip can be ensured to have good sealing performance, so that the pipette tip can effectively suck and discharge target liquid.

In the embodiment of the present application, the moving portion 22 can move under the driving of the first driving portion 21, so that the grasping portion 223 of the moving portion 22 can grasp the target object 103, and the suction and discharge portion 222 in the moving portion 22 is acted by the driving of the second driving portion 221, so that the suction and discharge portion 222 and the grasping portion 223 complete the piston motion, and the pressure in the through hole 2230 is changed, so that the moving portion 22 can suck and discharge the target liquid. It can be understood that, in the embodiment of the present application, the moving part 22 integrates the functions of grabbing the target object 103 and absorbing and discharging the target liquid, so as to reduce the occupied space of the sample adding assembly 102, facilitate the miniaturization of the optical detection apparatus 100, and reduce the cost of the optical detection apparatus 100.

The grasping portion 223 further includes a discharge cylinder 2234 and a spring 2235. The unloading cylinder 2234 is located at the periphery of the connecting rod 2233. The unloader cylinder 2234 contacts the spring 2235. When the target object 103 is mounted on the connecting rod 2233, the unloading cylinder 2234 is located between the target object 103 and the spring 2235, and the target object 103 abuts against the unloading cylinder 2234 to compress the spring 2235, and an end of the connecting rod 2233 away from the spring 2235 is embedded in the target object 103. As shown in fig. 3, the target object 103 is engaged with the connecting rod 2233 by fitting.

In the present embodiment, the target object 103 is engaged with the connecting rod 2233 by being inserted, so that the moving portion 22 grips the target object 103. When the moving portion 22 grips the target object 103, the spring 2235 is in a compressed state. When the spring 2235 is deformed again, the unloading cylinder 2234 is pressed against the target 103, so that the target 103 falls off the connecting rod 2233. When the connecting rod 2233 is gradually embedded into the target object 103, the target object 103 abuts against the unloading cylinder 2234, so that the unloading cylinder 2234 pushes the unloading rod to move in a first direction relative to the connecting rod 2233; the first direction is a vertical direction in which the connecting rod 2233 faces the second driving part 221.

Further, please continue to refer to fig. 6 to 8, fig. 7 is a schematic cross-sectional view of the moving part 22 shown in fig. 3 at another position, and fig. 8 is a schematic cross-sectional view of the moving part 22 shown in fig. 3 at yet another position. The suction/discharge unit 222 includes a movable block 2221 and a movable rod 2222 connected to the movable block 2221. The second driving part 221 drives the movable block 2221 and the movable rod 2222 to move in the vertical direction. Wherein the vertical direction includes a vertical upward movement and a vertical downward movement. The movable bar 2222 is connected between the movable block 2221 and the first end 2231. One end of the movable rod 2222 is received in the first end 2231 and blocks the through hole 2230, and the other end of the movable rod 2222 is received in the movable block 2221.

It will be appreciated that one end of the movable bar 2222 closes off the opening of the through-hole 2230 at the first end 2231, and the target object 103 closes off the opening of the through-hole 2230 at the second end 2232, so that the through-hole 2230 forms a closed space when the target object 103 is mounted to the connecting bar 2233. When the movable rod 2222 is driven by the second driving part 221, the movable rod 2222 moves in the vertical direction, so that the pressure inside the through hole 2230 changes, thereby enabling the moving part 22 to suck and discharge the target liquid.

As shown in fig. 6, when the movable bar 2222 is located at a first position relative to the first end 2231, the distance between the movable bar 2222 and the connecting bar 2233 is a first distance. The first spacing is identified as D1. At this time, the target object 103 is just mounted to the connecting rod 2233. As shown in fig. 7, when the second driving part 221 drives the movable bar 2222 to move from the first position to the second position relative to the first end 2231, the distance between the movable bar 2222 and the connecting bar 2233 is a second distance, and the second distance is greater than the first distance. The second pitch is identified as D2. At this time, the moving section 22 sucks the target liquid. As shown in fig. 8, when the second driving part 221 drives the movable bar 2222 to move from the second position to the third position relative to the first end 2231, the distance between the movable bar 2222 and the connecting bar 2233 is a third distance, and the third distance is smaller than the second distance. The third distance is identified by D3. At this time, the moving unit 22 discharges the target liquid.

As can be appreciated, since the second distance is greater than the first distance, that is, when the movable bar 2222 moves from the first position to the second position, the movable bar 2222 moves upward, so that a negative pressure is generated inside the through hole 2230, thereby sucking the target liquid. Since the third distance is smaller than the second distance, that is, when the movable bar 2222 is moved from the second position to the third position, the movable bar 2222 is moved downward, so that the pressure inside the through hole 2230 is increased, thereby discharging the target liquid. Wherein the first interval can be less than or equal to the third interval so that the sucked target liquid can be discharged.

In the embodiment of the present application, the suction and discharge portion 222 and the moving portion 22 perform a piston motion, the movable rod 2222 of the suction and discharge portion 222 is received in the first end 2231 and blocks the through hole 2230, so that the movable rod 2222 and the grasping portion 223 perform a piston motion, and the pressure in the through hole 2230 is changed, thereby enabling the moving portion 22 to suck and discharge the target liquid.

Further, referring to fig. 8 and 9, fig. 9 is a schematic cross-sectional view of the moving portion 22 shown in fig. 2 at another position. The grasping portion 223 further includes a discharging rod 2236 and a discharging plate 2237. The unloading bar 2236 is connected between the unloading plate 2237 and the unloading cylinder 2234. A spring 2235 surrounds the perimeter of the unloader bar 2236. When the second driving part 221 drives the movable bar 2222 to move from the third position to the fourth position relative to the first end 2231, a distance between the movable bar 2222 and the connecting bar 2233 is a fourth distance, and the fourth distance is smaller than the third distance. The fourth spacing is identified as D4. And the movable block 2221 abuts against the unloading plate 2237. The unloading plate 2237 abuts against the unloading bar 2236. Unload lever 2236 holds unload cylinder 2234. The target object 103 falls off the connecting rod 2233. The spring 2235 recovers its shape.

As can be appreciated, since the fourth distance is smaller than the third distance, that is, when the movable rod 2222 moves from the third position to the fourth position, the second driving part 221 drives the movable rod 2222 to move downward, so that the movable block 2221 abuts against the unloading plate 2237 to push the unloading cylinder 2234 to move vertically downward relative to the connecting rod 2233, so that the unloading cylinder 2234 abuts against the target object 103, and thus the target object 103 falls off from the connecting rod 2233. When the target object 103 falls off the connecting rod 2233, the spring 2235 recovers its shape.

Here, when the connecting rod 2233 is gradually inserted into the target object 103, the target object 103 abuts against the unloading cylinder 2234, so that the unloading cylinder 2234 pushes the unloading rod 2236 to move vertically upward relative to the connecting rod 2233.

Further, please refer to fig. 5, fig. 6 and fig. 10, in which fig. 10 is a schematic structural view of the structure shown in fig. 3 at another angle. The moving portion 22 further includes a first sensor 224 and a first stopper 225. The first catch 225 is fixedly attached to the unloader plate 2237. As shown in fig. 6, when the target object 103 is mounted on the connecting rod 2233, the unloading plate 2237 brings the first shutter 225 to block a part of the first sensor 224. When a portion of the first sensor 224 is blocked by the first blocking piece 225, the first sensor 224 cannot receive the light signal. When the first sensor 224 does not receive the optical signal, the first sensor 224 determines that the target object 103 is attached to the moving part 22. As shown in fig. 5, when the target object 103 is not attached to the connecting rod 2233, the first flap 225 blocks the first sensor 224 so that the first sensor 224 can receive the optical signal, thereby determining that the target object 103 is not attached to the moving portion 22.

In the embodiment of the present application, the first sensor 224 can determine whether the target object 103 is attached to the moving part 22, so that the sample adding assembly 102 performs the next operation based on the signal of the first sensor 224.

Further, referring to fig. 7, 8 and 10, the moving part 22 further includes a second sensor 226 and a second stopper 227. The second blocking piece 227 is fixedly connected with the movable block 2221. As shown in fig. 8, when the movable rod 2222 moves from the third position to the fourth position relative to the first end 2231, the movable block 2221 moves the second blocking piece 227 to block a portion of the second sensor 226. When a portion of the second sensor 226 is blocked by the second shutter 227, the second sensor 226 cannot receive the light signal. At this time, the sample adding component 102 completes the action of discarding the target object 103.

When the second sensor 226 does not receive the optical signal, it is determined that the target object 103 falls off the connecting rod 2233. As shown in fig. 7, when the movable rod 2222 is located at the second position relative to the first end 2231, the second blocking piece 227 does not block a portion of the second sensor 226, so that the second sensor 226 receives the optical signal, and thus it is determined that the action of discarding the target object 103 by the sample adding assembly 102 is not completed.

In this embodiment, when the second sensor 226 does not receive the optical signal, it is determined that the target object 103 falls off from the connecting rod 2233, so that the controller controls the second driving portion 221 to drive the movable block 2221 to reset, so that the sample adding assembly 102 performs the next operation.

Further, with continued reference to fig. 2, the moving portion 22 further includes an alarm 228. The alarm 228 alarms when the mobile portion 22 is struck.

In the present embodiment, the mobile portion 22 includes an alarm 228 such that when the mobile portion 22 is struck, the alarm 228 alarms alerting the user that the mobile portion 22 is struck.

Further, with continuing reference to fig. 11, fig. 11 is a schematic structural diagram of the sample application assembly 102 shown in fig. 1 according to another embodiment. The sample adding assembly 102 further comprises a first sliding part 23 and a second sliding part 24. The first driving unit 21 drives the moving unit 22 to move in the first direction with respect to the first sliding unit 23. The first sliding portion 23 is slidably connected to the second sliding portion 24, and the first sliding portion 23 moves in the second direction relative to the second sliding portion 24. The second direction is different from the first direction, and the first sliding portion 23 is fixedly connected to the moving portion 22.

In one embodiment, the first direction is a vertical direction and the second direction is perpendicular to the first direction. For example, the second direction is a horizontal direction, that is, the first sliding part 23 moves along the horizontal direction, so that the moving part 22 can move along the vertical direction under the action of the first driving part 21 and can also move along the horizontal direction under the action of the first sliding part 23.

Further, the sample adding assembly 102 further includes a third sliding part 25. The third sliding portion 25 is slidably connected to the second sliding portion 24, and the second sliding portion 24 moves along a third direction perpendicular to the second direction relative to the third sliding portion 25.

In the embodiment of the present application, the moving portion 22 can move along the third direction under the driving of the third sliding portion 25, so that the moving portion 22 can move in three different directions, and the movable range of the moving portion 22 is increased.

In one embodiment, the first direction is a Z-axis direction, the second direction is a Y-axis direction, and the third direction is an X-axis direction, so that the moving portion 22 can move in a three-dimensional space.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the methods and their core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. The sample adding assembly is characterized by comprising a first driving part and a moving part, wherein the first driving part is used for driving the moving part to move;

2. The sample application assembly of claim 1, wherein the grasping portion further comprises an unloading cylinder and a spring, the unloading cylinder being located at a periphery of the connecting rod, the unloading cylinder contacting the spring;

3. The sample adding assembly according to claim 2, wherein the suction and discharge portion comprises a movable block and a movable rod connected with the movable block, the second driving portion drives the movable block and the movable rod to move in a vertical direction, the movable rod is connected between the movable block and the first end of the grabbing portion, the through hole penetrates from the first end of the grabbing portion to the second end of the grabbing portion, the second end of the grabbing portion is far away from the second driving portion relative to the first end of the grabbing portion, one end of the movable rod is accommodated in the first end and blocks off the through hole, and the other end of the movable rod is accommodated in the movable block;

4. The sample application assembly of claim 3, wherein the grasping portion further comprises an unloading rod and an unloading plate, the unloading rod is connected between the unloading plate and the unloading barrel, and the spring is enclosed around the unloading rod;

5. The sample application assembly of claim 4, wherein the moving portion further comprises a first sensor and a first blocking piece, and the first blocking piece is fixedly connected with the unloading plate; when the target object is arranged on the connecting rod, the unloading plate drives the first blocking piece to move so as to block part of the first sensor, and the first sensor cannot receive optical signals.

6. The sample application assembly of claim 4, wherein the moving part further comprises a second sensor and a second blocking piece, and the second blocking piece is fixedly connected with the movable block; when the movable rod moves from the third position to the fourth position relative to the first end, the movable block drives the second stopper to move so as to shield part of the second sensor.

7. The sample application assembly of claim 4, wherein the moving portion further comprises an alarm that alarms when the moving portion is impacted.

8. The sample application assembly according to any one of claims 1 to 7, further comprising a first sliding part and a second sliding part, wherein the first driving part drives the moving part to move along a first direction relative to the first sliding part, the first sliding part is connected with the second sliding part in a sliding manner, the first sliding part moves along a second direction relative to the second sliding part, the second direction is different from the first direction, and the first sliding part is fixedly connected with the moving part.

9. The sample application assembly of claim 8, further comprising a third sliding portion, wherein the third sliding portion is slidably connected to the second sliding portion, and the second sliding portion moves relative to the third sliding portion along a third direction, wherein the third direction is perpendicular to the second direction.

10. A light detection device comprising a housing and the sample application assembly according to any one of claims 1 to 9, wherein the sample application assembly is mounted to the housing.