Liquid taking device and liquid taking method

Abstract

The present invention provides a liquid collection device, specifically relates to a non-mechanical arm type fluid sample collection device, which includes a driving mechanism, a moving mechanism, a limiting mechanism, a sampling mechanism and a blocking plate, the moving mechanism includes a moving part and a clamping part, the moving part is connected to the output end of the driving mechanism, and a clamping slot is provided on the clamping part; the limiting mechanism is located on the moving part, the limiting mechanism includes a plate body and a limiting axis, the limiting axis includes a first limiting axis and a second limiting axis, and the second limiting axis extends into the clamping slot; the sampling mechanism includes a sampling unit and a sampling unit, the sampling unit includes a sampling tube and a sampling tube rack, and the sampling tube rack is movably connected to the moving mechanism; along the moving direction of the moving part, there is at least one intersection between the first limiting axis and the blocking plate. At the same time, the present invention also provides a liquid collection method, which adopts the liquid collection device. Compared with the related art, the liquid collection device and liquid collection method provided by the present invention are simple to operate and have better sampling effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sample sampling, and in particular to a liquid collecting device and a liquid collecting method. Background Art

[0002] In some fluid contaminated environments, personnel cannot enter, and a robot is required to carry an automatic liquid collection device to enter a designated location to collect liquid. In the prior art, the robot is equipped with a mechanical arm and then enters the designated location to collect liquid.

[0003] However, the existing technology uses a robot equipped with a mechanical arm to take liquid. Due to the size of the robot body, environmental conditions and other conditions, the size of the mechanical arm will be limited, and then the height of the liquid will be limited; at the same time, the mechanical arm is complicated to operate, and it is difficult to take liquid, which takes a long time and has high requirements for operators and the whole machine. In addition, the mechanical arm has a complex structure, and the design, production and subsequent maintenance costs are high. Summary of the invention

[0004] Aiming at the technical problems in the prior art that the sampling height is limited due to the use of a robot equipped with a mechanical arm to collect samples, the operation is cumbersome and complicated, and the manufacturing and maintenance costs are high, the present invention provides a liquid collection device with simple operation and good sampling effect.

[0005] A liquid extraction device, comprising:

[0006] Driving mechanism;

[0007] A moving mechanism, comprising a moving part and a clamping part fixed on the moving part, wherein the moving part is connected to the output end of the driving mechanism, and a clamping slot is provided on the clamping part;

[0008] A limiting mechanism is located on the moving part, the limiting mechanism includes a plate body and a limiting shaft, the plate body is arranged along the moving direction of the moving part, the limiting shaft includes a first limiting shaft and a second limiting shaft located at opposite ends of the plate body, and the second limiting shaft extends into the card slot;

[0009] The sampling mechanism comprises a sampling unit and a sampling unit, wherein the sampling unit comprises a sampling tube and a sampling tube rack, the sampling unit is connected to the sampling tube, the sampling tube is at least partially accommodated in the sampling tube rack, and the sampling tube rack is movably connected to the clamping member;

[0010] The blocking plate, along the moving direction of the moving part, the first limiting axis and the blocking plate have at least one intersection point.

[0011] Preferably, the sampling unit further comprises:

[0012] A slider, movably connected to the holder;

[0013] A movable plate, movably connected to the slider;

[0014] The sampling tube rack comprises:

[0015] A frame body connected to the slider;

[0016] A fixing bar has one end connected to the frame body and the other end connected to the movable plate. The fixing bar is used to fix the sampling tube in the frame body.

[0017] Preferably, the motion mechanism further comprises:

[0018] The spring piece is arranged on the holding member and is used for providing a force to separate the sampling unit from the motion mechanism.

[0019] Preferably, the sampling tube comprises:

[0020] A hose body, at least partially received in the sampling tube rack, and one end of which extends out of the sampling tube rack;

[0021] A male pipe connector has one end connected to one end of the hose body extending out of the sampling tube rack, and the other end connected to the sampling unit.

[0022] Preferably, the sampling unit comprises:

[0023] Sampling pump;

[0024] An inlet hose, one end of which is connected to the feed port of the sampling pump;

[0025] A female pipe joint, one end of which is connected to the male pipe joint, and the other end of which is connected to the other end of the inlet hose;

[0026] The blocking plate is located between the male pipe joint and the first limiting shaft, and along the moving direction of the moving part, there is at least one intersection point between the ejector pin of the male pipe joint and the blocking plate.

[0027] Preferably, the motion mechanism further comprises:

[0028] A fixed seat, fixed to the moving part and / or the holding part;

[0029] The female pipe joint is fixedly mounted on the fixing seat;

[0030] The blocking plate is provided with a first through hole and a second through hole along the moving direction of the moving part, the plate body is passed through the first through hole, and the inlet hose is passed through the second through hole.

[0031] Preferably, the sampling unit further includes:

[0032] An outlet hose, one end of which is connected to the discharge port of the sampling pump;

[0033] a liquid storage device, connected to the other end of the outlet hose;

[0034] A one-way valve is arranged on the outlet hose, and a water inlet of the one-way valve is located on a side close to the sampling pump.

[0035] Preferably, the moving part is a rack, and the driving mechanism comprises:

[0036] Drive unit;

[0037] A gear is arranged on the output shaft of the driving unit and meshes with the rack.

[0038] At the same time, the present invention also provides a liquid extraction method, which specifically comprises the following steps:

[0039] S1. Provide the liquid taking device described in any one of the above items, and place the components of the liquid taking device in initial positions;

[0040] S2, the driving mechanism drives the motion mechanism to move, and the motion mechanism drives the limiting mechanism, the sampling unit and some components of the sampling unit to move;

[0041] S3, the blocking plate blocks the first limiting shaft, the driving mechanism continues to drive the moving mechanism to move, the limiting mechanism and the moving mechanism are relatively displaced, and the second limiting shaft moves in the slot;

[0042] S4, the clamping member blocks the second limiting shaft, and the second limiting shaft applies a force to the moving mechanism, so that the sampling tube rack is separated from the moving mechanism, and the sampling tube falls into the required sampling area, and at the same time, the driving mechanism stops working;

[0043] S5. The sampling unit starts to work and collects samples in the required sampling area through the sampling tube.

[0044] Preferably, the method further comprises the following steps:

[0045] S6, the driving mechanism drives the moving mechanism to move back, and the moving mechanism drives the limiting mechanism, the sampling tube and some components of the sampling unit to move;

[0046] S7, the blocking plate blocks the sampling tube, and the driving mechanism continues to drive the motion mechanism to move, so that the sampling tube is separated from the sampling unit.

[0047] Compared with the related art, the liquid collection device provided by the present invention realizes simple sample collection operation through the cooperation of the driving mechanism, the moving mechanism, the limiting mechanism, the sampling mechanism and the blocking plate, and has low manufacturing cost and later maintenance cost. At the same time, the collection device drives the moving mechanism to move through the driving mechanism, and the moving mechanism drives the limiting mechanism and the sampling mechanism to move. When reaching the collection area, the blocking plate can block the limiting mechanism, thereby causing the sampling tube rack to separate from the moving mechanism, and then allowing the sampling tube to fall into the sampling area to collect the sample, which can effectively increase the liquid collection height and also improve the sampling effect of the liquid collection device.

[0048] Correspondingly, the liquid collecting method provided by the present invention adopts the liquid collecting device, which not only simplifies sampling, but also can effectively increase the liquid collecting height, thereby improving the sampling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A schematic diagram of the planar structure of the liquid taking device provided in Example 1;

[0051] Figure 2 for Figure 1 A right side view of the liquid taking device shown;

[0052] Figure 3 for Figure 1 A cross-sectional view of some components of the liquid extraction device along AA;

[0053] Figure 4 for Figure 3 A partial enlarged view of region IV is shown;

[0054] Figure 5 for Figure 1 The schematic diagram of the structure of some components of the liquid taking device in the initial state is shown;

[0055] Figure 6 for Figure 5 A schematic diagram of the structure of the liquid taking device after the first limiting axis is blocked;

[0056] Figure 7 for Figure 6 A schematic diagram of the structure of the liquid taking device after the second limiting axis is blocked;

[0057] Figure 8 for Figure 7 A schematic diagram of the structure of the liquid extraction device after the male pipe joint is blocked;

[0058] Fig. 9 for Figure 8 A schematic diagram of the structure of the liquid extraction device after the male pipe joint and the female pipe joint are separated;

[0059] Fig.10 This is a schematic flow chart of the liquid extraction method provided in Example 2. DETAILED DESCRIPTION

[0060] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set 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 indirectly connected to the other element.

[0062] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0063] The present invention provides a liquid collection device, which includes a driving mechanism, a moving mechanism, a limiting mechanism, a sampling mechanism and a blocking plate, wherein the moving mechanism includes a moving part and a clamping member fixed on the moving part, the moving part is connected to the output end of the driving mechanism, and a clamping slot is provided on the clamping member; the limiting mechanism is located on the moving part, the limiting mechanism includes a plate body and a limiting axis, the plate body is arranged along the moving direction of the moving part, the limiting axis includes a first limiting axis and a second limiting axis located at opposite ends of the plate body, and the second limiting axis extends into the clamping slot; the sampling mechanism includes a sampling unit and a sampling unit, the sampling unit includes a sampling tube and a sampling tube rack, the sampling unit is connected to the sampling tube, the sampling tube is at least partially accommodated in the sampling tube rack, and the sampling tube rack is movably connected to the moving part and / or the clamping member; along the moving direction of the moving part, the first limiting axis and the blocking plate have at least one intersection point. The liquid collection device is not only simple to operate, but also can effectively improve the liquid collection height.

[0064] Embodiment 1

[0065] Please refer to Figures 1 to 9 .in, Figure 5 (a) Figure 1 The front view of some components of the liquid extraction device in the initial state is shown. Figure 5 (b) Figure 1 A top view of some components of the liquid extraction device in the initial state; Figure 6 for Figure 5 A top view of the first limiting axis of the liquid taking device after being blocked; Figure 7 (c) Figure 6 The front view of the second limiting axis of the liquid taking device after being blocked, Figure 7 (d) Figure 6 A top view of the second limiting axis of the liquid taking device after being blocked; Figure 8 (e) Figure 7 The front view of the male pipe joint in the liquid extraction device is shown after being blocked. Figure 8 (f) Figure 7 A top view of the male pipe joint of the liquid extraction device shown in FIG. 1 after being blocked; Fig. 9 (g) Figure 8 The front view of the liquid extraction device after the male pipe joint and the female pipe joint are separated. Fig. 9 (h) Figure 8 The shown figure is a top view of the liquid extraction device after the male pipe joint and the female pipe joint are separated.

[0066] The present embodiment provides a liquid collection device 100, which is used for fluid sampling. Specifically, in the present embodiment, the liquid collection device 100 is used for sampling and testing fluid samples in a fluid contaminated environment. Specifically, it relates to a liquid collection device 100 for non-mechanical arm fluid sample sampling. Of course, in other embodiments, according to demand, the liquid collection device 100 can also be used for sampling other samples, such as powdered substances, or even soil. The liquid collection device 100 includes a driving mechanism 10, a moving mechanism 20, a limiting mechanism 30, a sampling mechanism 40 and a blocking plate 50, the moving mechanism 20 is connected to the output end of the driving mechanism 10, the driving mechanism 10 is used to drive the moving mechanism 20 to move linearly, the limiting mechanism 30 is located on the moving mechanism 20, and the moving mechanism 20 can drive the limiting mechanism 30 to move. The sampling mechanism 40 is used for collecting samples, and one end of the sampling mechanism 40 is movably connected to the moving mechanism 20, wherein the movably connected means that the sampling mechanism 40 can be separated from the moving mechanism 20 after being subjected to force. The blocking plate 50 is used to block the limiting mechanism 30. When the moving mechanism 20 drives the limiting mechanism 30 to move to a certain distance, the blocking plate 50 contacts the limiting mechanism 30 to block the limiting mechanism 30, so that the limiting mechanism 30 and the moving mechanism 20 move relative to each other. Finally, the limiting mechanism 30 generates a force on the moving mechanism 20, so that one end of the sampling mechanism 40 falls from the moving mechanism 20 and falls into the sampling area, thereby realizing the sampling of the sample.

[0067] The driving mechanism 10 includes a driving unit 11 and a gear 12 disposed on an output shaft of the driving unit 11 . The driving unit 11 can be any device such as a motor that can drive the gear 12 to rotate.

[0068] The moving mechanism 20 includes a moving part 21 and a clamping part 22 fixed on the moving part 21. The moving part 21 is connected to the output end of the driving mechanism 10. The clamping part 22 is fixed to one end of the moving part 21. A clamping slot 221 is provided on the clamping part 22. Specifically, in this embodiment, the moving part 21 is a rack, and the rack is meshed with the gear 12, so that the gear 12 can drive the rack to move linearly. The clamping part 22 is provided with two hanging ears 222. The clamping slot 221 is provided on the hanging ears 222, and each of the hanging ears 222 is provided with the clamping slot 221.

[0069] Preferably, the moving mechanism 20 further includes a spring piece 23 and a fixing seat 24, wherein the spring piece 23 is disposed on the moving member 21 or the clamping member 22 to provide a force to separate the sampling mechanism 40 from the moving mechanism 20. The fixing seat 24 is fixed to the moving member 21 and / or the clamping member 22, and the fixing seat 24 is used to receive and fix the sampling mechanism 40.

[0070] It can be understood that, in this embodiment, the moving part 21 is a rack, and the drive mechanism 10 is provided with the gear 12, so that the drive mechanism 10 drives the moving mechanism 20 to move in a straight line through the cooperation of the gear and the rack. Of course, in other embodiments, the drive mechanism 10 can also be a linear drive unit, such as an electric cylinder, an oil cylinder, a pneumatic cylinder, etc. The output end of the drive mechanism 10 is directly fixedly connected to the moving part 21, so that the drive mechanism 10 can directly drive the moving part 21 to move in a straight line. Even in other embodiments, the drive mechanism 10 can also be any other required structure, and the moving mechanism 20 can also do any other form of movement, such as circular motion. In this embodiment, the form of gear and rack cooperation is adopted to drive the moving part 21 to reciprocate in a straight line, which can not only achieve accurate control of the motion state of the moving part 21 through the drive mechanism 10, but also better control the drop position of the sampling mechanism 40, thereby effectively improving the success rate of sampling.

[0071] The limiting mechanism 30 is located on the moving part 21, and the limiting mechanism 30 includes a plate body 31 and a limiting shaft 32. The plate body 31 is arranged along the moving direction of the moving part 21, and the limiting shaft 32 includes a first limiting shaft 321 and a second limiting shaft 322 located at opposite ends of the plate body 31, and the second limiting shaft 322 extends into the slot 221. Specifically, in the present embodiment, the plate body 31 is arranged along the length direction of the moving part 21, the first limiting shaft 321 and the second limiting shaft 322 are arranged at both ends of the plate body 31 along the length direction of the plate body 31, and along the width direction of the plate body 31, both ends of the first limiting shaft 321 and the second limiting shaft 322 extend out of the plate body 31, and both ends of the second limiting shaft 322 extend into the slots 221 of the two hanging ears 222, respectively.

[0072] The sampling mechanism 40 includes a sampling unit 41 and a sampling unit 42. The sampling unit 42 is movably connected to the moving mechanism 20, and the sampling unit 42 can be separated from the moving mechanism 20 so as to fall into the area where sampling is required. The sampling unit 41 is used to provide power, and the sample is collected through the sampling unit 42. The sampling unit 42 includes a sampling tube 421 and a sampling tube rack 422. The sampling tube 421 is at least partially accommodated in the sampling tube rack 422. The sampling tube rack 422 is movably connected to the moving member 21 and / or the clamping member 22, and the sampling unit 41 is connected to the sampling tube 421.

[0073] Specifically, the sampling unit 42 further includes a slider 43 and a movable plate 44, the slider 43 is movably connected to the clamping member 22, and the movable plate 44 is movably connected to the slider 43. Specifically, a square groove is provided on the slider 43, and the movable plate 44 is provided in the square groove. The sampling tube rack 422 includes a frame 4221 and a fixing bar 4222, the frame 4221 is connected to the slider 43, that is, the sampling tube rack 422 is movably connected to the clamping member 22 through the slider 43. One end of the fixing bar 4222 is connected to the frame 4221, and the other end of the fixing bar 4222 is connected to the movable plate 44, so that the fixing bar 4222 and the frame 4221 together enclose a receiving space to receive the sampling tube 421, and the fixing bar 4222 is used to fix the sampling tube 421 in the frame 4221. The spring piece 23 is used to provide a force to separate the sampling unit 42 from the motion mechanism 20, and the spring piece 23 is arranged corresponding to the slider 43. When the motion mechanism 20 moves to a certain position, the limiting mechanism 30 exerts a force on the motion mechanism 20 due to the obstruction of the blocking plate 50, so that the spring piece 23 in the motion mechanism 20 exerts a force on the slider 43, and the slider 43 is bounced off the motion mechanism 20, so that the slider 43 falls from the motion mechanism 20, so that the movable plate 44, the sampling tube 421 and the sampling tube rack 422 fall from the motion mechanism 20. At the same time, when the movable plate 44 falls, it will slide out of the square groove of the slider 43, thereby driving the fixing bar 4222 to open the rack 4221, so that the sampling tube 421 is scattered from the sampling tube rack 422.

[0074] The sampling tube 421 includes a hose body 4211 and a male pipe connector 4212. The hose body 4211 is at least partially received in the sampling tube holder 422, and one end of the hose body 4211 extends out of the sampling tube holder 422. One end of the male pipe connector 4212 is connected to one end of the hose body 4211 extending out of the sampling tube holder 422, and the other end of the male pipe connector 4212 is connected to the sampling unit 41.

[0075] The sampling unit 41 includes a sampling pump 411, an inlet hose 412 and a female pipe joint 413, one end of the inlet hose 412 is connected to the feed port of the sampling pump 411, one end of the female pipe joint 413 is connected to the male pipe joint 4212, and the other end of the female pipe joint 413 is connected to the other end of the inlet hose 412. Specifically, the large end of the male pipe joint 4212 and the large end of the female pipe joint 413 are matched together through a sealing ring. When not affected by external force, the male pipe joint 4212 will not be detached from the female pipe joint 413. The female pipe joint 413 is fixedly installed on the fixing seat 24, and the fixing seat 24 is installed on the upper part of the slot 221; one end of the inlet hose 412 is sleeved on the small end of the female pipe joint 413 and clamped with a clamp, and the other end is connected to the inlet of the sampling pump 411; one end of the hose body 4211 is sleeved on the small end of the male pipe joint 4212 and clamped with a clamp, and the other end is open, thereby forming a loop.

[0076] Preferably, the sampling unit 41 also includes an outlet hose 414, a liquid storage device 415 and a one-way valve 416, one end of the outlet hose 414 is connected to the discharge port of the sampling pump 411, and the liquid storage device 415 is connected to the other end of the outlet hose 414, the one-way valve 416 is arranged on the outlet hose 414, and the water inlet of the one-way valve 416 is located on the side close to the sampling pump 411, thereby forming a one-way loop, ensuring that the fluid can only flow into the liquid storage device 415, so that the fluid in the liquid storage device 415 will not flow back toward the sampling pump 411.

[0077] The blocking plate 50 is located between the first limiting axis 321 and the second limiting axis 322. Specifically, in this embodiment, the blocking plate 50 is located between the first limiting axis 321 and the male pipe connector 4212. The blocking plate 50 is provided with a first through hole 51 and a second through hole 52 along the moving direction of the moving member 21. The plate body 31 is provided through the first through hole 51, and the inlet hose 412 is provided through the second through hole 52.

[0078] Specifically, the male pipe joint 4212 is extended in a direction close to the blocking plate 50 to form an ejector pin 4213. Along the moving direction of the moving member 21, the first limiting shaft 321 and the blocking plate 50 have at least one intersection point, and the ejector pin 4213 of the male pipe joint 4212 and the blocking plate 50 have at least one intersection point. That is, the orthographic projection of the first limiting shaft 321 onto the blocking plate 50 falls on the plate body of the blocking plate 50, and the orthographic projection of the ejector pin 4213 onto the blocking plate 50 falls on the plate body of the blocking plate 50. Therefore, when the first limiting shaft 321 moves to the blocking plate 50, the blocking plate 50 can block the first limiting shaft 321, thereby limiting the movement of the limiting mechanism 30. When the ejector pin 4213 moves to the blocking plate 50 , the blocking plate 50 can block the ejector pin 4213 , thereby limiting the movement of the male pipe connector 4212 and allowing the male pipe connector 4212 to separate from the female pipe connector 413 .

[0079] Working principle of the liquid taking device 100: In the initial state, the driving mechanism 10, the moving mechanism 20, the limiting mechanism 30, the sampling mechanism 40 and the blocking plate 50 are all located at the initial position (such as Figure 1As shown). The driving mechanism 10 drives the moving part 21 to move, and the moving part 21 drives the holding part 22, the spring piece 23, the fixing seat 24, the limiting mechanism 30, the sampling unit 42, the female pipe joint 413, and the inlet hose 412 to move. It can be understood that the inlet hose 412 has a certain margin at the beginning, so that the moving part 21 will only drive the female pipe joint 413 and the inlet hose 412 in the sampling unit 41 to move. After moving to a certain distance, the first limiting shaft 321 contacts the blocking plate 50, and the blocking plate 50 blocks the first limiting shaft 321, and the moving part 21 continues to move, so that the first limiting shaft 321 drives the plate body 31 and the moving part 21 to have a relative displacement, so that the second limiting shaft 322 moves in the clamping groove 221. When the second limiting shaft 322 moves to the end of the card slot 221, the second limiting shaft 322 contacts the inner wall of the ear 222, so that the limiting mechanism 30 applies a force to the clamping member 22 through the second limiting shaft 322, causing the force to be transmitted to the spring 23, and the spring 23 generates a force to cause the movable plate 44, the slider 43, and the sampling tube rack 422 to fall from the clamping member 22, and at the same time, the movable plate 44 slides out of the square groove of the slider 43, thereby opening the sampling tube rack 422, and the hose body 4211 falls out of the rack body 4221 and falls into the required sampling area, and at the same time, the driving mechanism 10 stops working. The sampling pump 411 starts working, and collects the fluid in the required sampling area through the hose body 4211 into the liquid storage device 415. When the sampling amount is sufficient, the sampling pump 411 stops working. The driving mechanism 10 rotates in the opposite direction, thereby driving the moving member 21 to move back. After moving to a certain distance, the ejector pin 4213 contacts the blocking plate 50, and the blocking plate 50 blocks the male pipe connector 4212. The moving part 21 continues to move, thereby causing the male pipe connector 4212 to separate from the female pipe connector 413, so that the sampling unit 42 is separated from the sampling unit 41.

[0080] It is understandable that the liquid collection device 100 has a simple sampling method, can realize blind automatic sampling, and solves the problem of limited liquid collection height and overflow of the collected fluid, and can solve the problem that the fluid sample to be collected is located at a deep distance below the operation surface. At the same time, a power can be used to realize that the sampling unit automatically extends out of the robot and automatically opens the sampling tube, so that the liquid collection end automatically enters the fluid, realizes automatic retraction into the robot, and automatically separates the sampling unit from the sampling mechanism during the retraction process.

[0081] Embodiment 2

[0082] Please refer to Fig.10 This embodiment provides a liquid extraction method, which includes the following steps:

[0083] S1, providing the liquid taking device 100, and placing the components of the liquid taking device in initial positions;

[0084] S2, the driving mechanism drives the motion mechanism to move, and the motion mechanism drives the limiting mechanism, the sampling unit and some components of the sampling unit to move;

[0085] Specifically, the driving mechanism 10 drives the moving part 21 to move, and the moving part 21 drives the holding part 22, the spring 23, the fixing seat 24, the limiting mechanism 30, the sampling unit 42, the female pipe joint 413, and the inlet hose 412 to move.

[0086] S3, the blocking plate blocks the first limiting shaft, the driving mechanism continues to drive the moving mechanism to move, the limiting mechanism and the moving mechanism are relatively displaced, and the second limiting shaft moves in the slot;

[0087] Specifically, the first limiting shaft 321 contacts the blocking plate 50, the blocking plate 50 blocks the first limiting shaft 321, and the moving part 21 continues to move, so that the first limiting shaft 321 drives the plate body 31 and the moving part 21 to move relative to each other, so that the second limiting shaft 322 moves in the slot 221.

[0088] S4, the clamping member blocks the second limiting shaft, and the second limiting shaft applies a force to the moving mechanism, so that the sampling tube rack is separated from the moving mechanism, and the sampling tube falls into the required sampling area, and at the same time, the driving mechanism stops working;

[0089] Specifically, when the second limiting shaft 322 moves to the end of the card slot 221, the second limiting shaft 322 contacts the inner wall of the hanging ear 222, so that the limiting mechanism 30 applies a force to the clamping member 22 through the second limiting shaft 322, prompting the force to be transmitted to the spring piece 23. The spring piece 23 generates a force to prompt the movable plate 44, the slider 43, and the sampling tube rack 422 to fall from the clamping member 22. At the same time, the movable plate 44 slides out of the square groove of the slider 43, thereby opening the sampling tube rack 422, and the hose body 4211 scatters out of the rack body 4221 and falls into the required sampling area. At the same time, the driving mechanism 10 stops working.

[0090] S5, the sampling unit starts to work, and collects samples in the required sampling area through the sampling tube;

[0091] Specifically, the sampling pump 411 starts to work, and collects the fluid in the required sampling area into the liquid storage device 415 through the hose body 4211. When the sampling amount is sufficient, the sampling pump 411 stops working.

[0092] S6, the driving mechanism drives the moving mechanism to move back, and the moving mechanism drives the limiting mechanism, the sampling tube and some components of the sampling unit to move;

[0093] Specifically, the driving mechanism 10 rotates in the reverse direction, thereby driving the moving member 21 to move back.

[0094] S7, the blocking plate blocks the sampling tube, and the driving mechanism continues to drive the motion mechanism to move, so that the sampling tube is separated from the sampling unit.

[0095] Specifically, after moving to a certain distance, the ejector pin 4213 contacts the blocking plate 50, the blocking plate 50 blocks the male pipe connector 4212, and the moving part 21 continues to move, thereby causing the male pipe connector 4212 to separate from the female pipe connector 413, so that the sampling unit 42 is separated from the sampling unit 41.

[0096] Compared with the related art, the liquid collection device provided by the present invention realizes simple sample collection operation through the cooperation of the driving mechanism, the moving mechanism, the limiting mechanism, the sampling mechanism and the blocking plate, and has low manufacturing cost and later maintenance cost. At the same time, the collection device drives the moving mechanism to move through the driving mechanism, and the moving mechanism drives the limiting mechanism and the sampling mechanism to move. When reaching the collection area, the blocking plate can block the limiting mechanism, thereby causing the sampling tube rack to separate from the moving mechanism, and then allowing the sampling tube to fall into the sampling area to collect the sample, which can effectively increase the liquid collection height and also improve the sampling effect of the liquid collection device.

[0097] Correspondingly, the liquid collecting method provided by the present invention adopts the liquid collecting device, which not only simplifies sampling, but also can effectively increase the liquid collecting height, thereby improving the sampling effect.

[0098] The above description is only an implementation mode of the present invention. It should be pointed out that, for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present invention, but these all belong to the protection scope of the present invention.

Claims

1. A liquid extraction device, characterized in that: include: Driving mechanism; A moving mechanism, comprising a moving part and a clamping part fixed on the moving part, wherein the moving part is connected to the output end of the driving mechanism, and a clamping slot is provided on the clamping part; A limiting mechanism is located on the moving part, the limiting mechanism includes a plate body and a limiting shaft, the plate body is arranged along the moving direction of the moving part, the limiting shaft includes a first limiting shaft and a second limiting shaft located at opposite ends of the plate body, and the second limiting shaft extends into the card slot; The sampling mechanism comprises a sampling unit and a sampling unit, wherein the sampling unit comprises a sampling tube and a sampling tube rack, wherein the sampling unit is connected to the sampling tube, wherein the sampling tube is at least partially accommodated in the sampling tube rack, and the sampling tube rack is movably connected to the clamping member; the sampling unit is used to provide power, and the sample is collected through the sampling unit; the sampling unit further comprises a slider and a movable plate, wherein the movable plate is movably connected to the slider, and the sampling tube rack is movably connected to the clamping member through the slider; A blocking plate, wherein a first through hole is formed on the blocking plate along the moving direction of the moving part, and the plate body is passed through the first through hole; along the moving direction of the moving part, the first limit axis and the blocking plate have at least one intersection point; The driving mechanism is used to drive the motion mechanism to perform linear motion, the motion mechanism can drive the limiting mechanism to move, the motion mechanism further comprises a spring, the spring is arranged on the moving part or the holding part, and the spring is arranged corresponding to the slider; When the moving mechanism moves to a certain distance, the first limiting shaft contacts the blocking plate, the blocking plate blocks the first limiting shaft, and the moving part continues to move, so that the first limiting shaft drives the plate body and the moving part to have relative displacement, so that the second limiting shaft moves in the slot, and when the second limiting shaft moves to the end of the slot, the second limiting shaft applies a force to the holding part, causing the force to be transmitted to the spring sheet, and the spring sheet applies a force to the slider, causing the slider to bounce off the moving mechanism and fall off the moving mechanism, thereby causing the movable plate, the sampling tube and the sampling tube rack to fall off the moving mechanism.

2. The liquid extraction device according to claim 1, characterized in that: The sampling tube rack comprises: A frame body connected to the slider; A fixing bar has one end connected to the frame body and the other end connected to the movable plate. The fixing bar is used to fix the sampling tube in the frame body.

3. The liquid extraction device according to any one of claims 1 to 2, characterized in that: The sampling tube comprises: A hose body, at least partially received in the sampling tube rack, and one end of which extends out of the sampling tube rack; A male pipe connector has one end connected to one end of the hose body extending out of the sampling tube rack, and the other end connected to the sampling unit.

4. The liquid extraction device according to claim 3, characterized in that: The sampling unit comprises: Sampling pump; An inlet hose, one end of which is connected to the feed port of the sampling pump; A female pipe joint, one end of which is connected to the male pipe joint, and the other end of which is connected to the other end of the inlet hose; The blocking plate is located between the male pipe joint and the first limiting shaft, and along the moving direction of the moving part, there is at least one intersection point between the ejector pin of the male pipe joint and the blocking plate.

5. The liquid extraction device according to claim 4, characterized in that: The motion mechanism also includes: A fixed seat, fixed to the moving part and / or the holding part; The female pipe joint is fixedly mounted on the fixing seat; A second through hole is formed on the blocking plate along the moving direction of the moving part, and the inlet hose is passed through the second through hole.

6. The liquid extraction device according to claim 4, characterized in that: The sampling unit also includes: An outlet hose, one end of which is connected to the discharge port of the sampling pump; a liquid storage device, connected to the other end of the outlet hose; A one-way valve is arranged on the outlet hose, and a water inlet of the one-way valve is located on a side close to the sampling pump.

7. The liquid extraction device according to any one of claims 1, 2, 4, 5 and 6, characterized in that: The moving part is a rack, and the driving mechanism comprises: Drive unit; A gear is arranged on the output shaft of the driving unit and meshes with the rack.

8. A liquid extraction method, characterized in that: The steps include: S1. Provide a liquid taking device according to any one of claims 1 to 7, and place the components of the liquid taking device in initial positions; S2, the driving mechanism drives the motion mechanism to move, and the motion mechanism drives the limiting mechanism, the sampling unit and some components of the sampling unit to move; S3, the blocking plate blocks the first limiting shaft, the driving mechanism continues to drive the moving mechanism to move, the limiting mechanism and the moving mechanism are relatively displaced, and the second limiting shaft moves in the slot; S4, the clamping member blocks the second limiting shaft, and the second limiting shaft applies a force to the moving mechanism, so that the sampling tube rack is separated from the moving mechanism, and the sampling tube falls into the required sampling area, and at the same time, the driving mechanism stops working; S5. The sampling unit starts to work and collects samples in the required sampling area through the sampling tube.

9. The liquid extraction method according to claim 8, characterized in that: The following steps are also included: S6, the driving mechanism drives the moving mechanism to move back, and the moving mechanism drives the limiting mechanism, the sampling tube and some components of the sampling unit to move; S7, the blocking plate blocks the sampling tube, and the driving mechanism continues to drive the motion mechanism to move, so that the sampling tube is separated from the sampling unit.

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