Sample collection device

Abstract

The utility model discloses a sample collecting device, which comprises a sampling assembly, a sampling assembly, a sampling assembly, a sampling assembly, a sampling assembly, a sampling assembly and a sampling assembly, and the sampling assembly comprises a sampling needle and a needle head piece, the sampling needle can horizontally reciprocate relative to the needle head piece; the telescopic assembly is connected with the sampling needle and can drive the sampling needle to do horizontal reciprocating motion so as to stretch out of or retract back to the needle head part, so that the sampling needle can perform sampling inside and outside the needle head part; the lifting assembly is connected with the sampling assembly and can drive the sampling assembly to rotate so as to enable the sampling needle outside the needle head part to perform inclined external sampling. According to the sample collecting device provided by the utility model, the telescopic assembly can drive the sampling needle to do horizontal reciprocating motion, so that two working positions inside and outside the needle head piece are realized; the lifting assembly can also drive the sampling needle to rotate for sampling, so that the device can realize sampling of the sampling needle in the horizontal direction and at multi-angle inclined positions through the telescopic assembly and the lifting assembly.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a sample collection device. Background Technology

[0002] Currently, in existing blood gas analyzers, the existing method uses a motor to control the forward and backward extension of the sampling needle to switch between the sampling position and other reagent extraction positions. In other words, current blood gas analyzers can only collect samples in a horizontal position, and the samples cannot be tilted, making the sampling position too limited.

[0003] Furthermore, existing blood gas analyzers rely on rubber components and seals to seal the tubing with the sampling needle, thus preventing leakage. However, the rubber components and seals in existing devices have the same hardness. If the rubber components are too hard, the sliding resistance between the sampling needle and the rubber is too great; if the seals are too soft, the sampling device's lifespan is insufficient, leading to leakage. After sampling, the sample residue on the needle is scraped off by the rubber, and the drips can contaminate the nearby testing area.

[0004] In view of this, it is necessary to propose further improvements to the current sample collection structure. Utility Model Content

[0005] Therefore, the purpose of this utility model is to at least partially address the shortcomings of the prior art, thereby proposing a sample collection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a sample collection device, including:

[0008] The sampling assembly includes a sampling needle and a needle tip, wherein the sampling needle is capable of horizontal reciprocating motion relative to the needle tip.

[0009] A telescopic assembly is connected to the sampling needle and can drive the sampling needle to perform horizontal reciprocating motion to extend or retract the needle tip, so that the sampling needle can perform sampling inside and outside the needle tip.

[0010] A lifting assembly, connected to the sampling assembly, is configured to drive the sampling assembly to rotate so that the sampling needle located outside the needle tip can perform tilted external sampling.

[0011] Furthermore, one end of the sampling needle is connected to the telescopic assembly, and the other end is disposed inside the needle tip. The telescopic assembly can drive the sampling needle to perform horizontal reciprocating motion to extend or retract the needle tip, thereby enabling the sampling needle to perform sampling inside and outside the needle tip.

[0012] Furthermore, the two ends of the sampling needle respectively include a first flow port and a second flow port that are interconnected. The first flow port is used to connect to the main flow path, and the second flow port is used for sampling. The telescopic component can drive the sampling needle to extend or retract the second flow port of the needle tip for sampling. The lifting component can drive the sampling needle to rotate and drive the second flow port extending out of the needle tip to perform inclined external sampling.

[0013] Furthermore, the needle tip includes a third flow port. When the telescopic component drives the sampling needle to retract into the needle tip, the second flow port communicates with the third flow port to collect samples. When the telescopic component drives the sampling needle to extend out of the needle tip, the second flow port directly collects external samples.

[0014] Furthermore, the needle assembly includes a hollow needle holder, which includes a first connector and a second connector. The sampling needle can reciprocate horizontally within the first connector and the second connector. The first connector is also provided with a third flow port for connecting the sample. A clamping member is also sleeved on the outside of the needle holder.

[0015] Furthermore, the first connector is provided with a through hole for accommodating the sampling needle to perform horizontal reciprocating motion. The through hole is connected to the third flow port, and a sealing element is provided at each end of the through hole. The two sealing elements are respectively provided with guide holes for the sampling needle to pass through and move relative to each other.

[0016] Furthermore, a rubber component is provided between the first connector and the second connector. A cavity is provided inside the second connector, and the cavity communicates with the through hole and the outside. When the sampling needle enters the first connector from the second connector, the rubber component can clean the residual sample on the outer wall of the sampling needle into the cavity. A fourth flow port is also provided inside the cavity, which is used to process the residual sample inside the cavity. The hardness of the sealing component is greater than the hardness of the rubber component.

[0017] Furthermore, the telescopic assembly includes a first driving member, a lead screw, a sliding seat, and a sliding rod. The sliding seat is slidably disposed on the sliding rod and is also connected to the lead screw. The sampling needle is connected to the sliding seat. The first driving member can drive the lead screw to rotate forward or reverse to drive the sliding seat to slide on the sliding rod, thereby linking the sampling needle to extend or retract the needle tip.

[0018] Furthermore, the lifting assembly includes a second driving member and a first gear member. The sampling assembly is meshed with the first gear member through the second gear member. The second driving member can drive the first gear member to rotate, thereby causing the sampling assembly to rotate. A first sensor for sensing whether the sampling assembly is in a horizontal state is provided on the outer wall of the second driving member.

[0019] Furthermore, the sampling assembly also includes a connecting seat, one side of which is connected to the sampling needle, the needle tip, and a second sensor for sensing whether the sampling needle has returned to its original position, and the other side is connected to the first gear through the second gear. A rotating shaft is also provided on the side of the connecting seat away from the sampling needle.

[0020] This invention provides a sample collection device, comprising: a sampling assembly including a sampling needle and a needle tip, the sampling needle being capable of horizontal reciprocating motion relative to the needle tip; a telescopic assembly connected to the sampling needle and capable of driving the sampling needle to perform horizontal reciprocating motion to extend or retract the needle tip, allowing the sampling needle to sample both inside and outside the needle tip; and a lifting assembly connected to the sampling assembly and capable of driving the sampling assembly to rotate so that the sampling needle located outside the needle tip can perform inclined external sampling. Through the sample collection device provided by this invention, the telescopic assembly can drive the sampling needle to perform horizontal reciprocating motion, thereby achieving two working positions: inside and outside the needle tip; the lifting assembly can also drive the sampling needle to rotate for sampling, thus enabling the device to achieve sampling of the sampling needle in the horizontal direction and at multiple angles of inclination through the telescopic assembly and the lifting assembly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a side view of the sample collection device of this utility model at the zero position.

[0023] Figure 2 This is a cross-sectional view of the sample collection device of this utility model at the zero position;

[0024] Figure 3 This is a schematic diagram of the overall structure of the sample collection device of this utility model at the zero position;

[0025] Figure 4 This is another overall structural diagram of the sample collection device of this utility model at the zero position;

[0026] Figure 5 This is a schematic diagram of the needle component of the sample collection device of this utility model;

[0027] Figure 6 This is a side view of the sample collection device of this utility model at the horizontal sampling position.

[0028] Figure 7 This is a cross-sectional view of the sample collection device of this utility model at the horizontal sampling position;

[0029] Figure 8 This is a schematic diagram of the overall structure of the sample collection device of this utility model at the horizontal sampling position;

[0030] Figure 9 This is a side view of the sample collection device of this utility model at the angle sampling position.

[0031] Figure 10 This is a schematic diagram of the overall structure of the sample collection device of this utility model at the angle sampling position.

[0032] The reference numerals in the figure are as follows: 1. Sampling component; 11. Sampling needle; 111. First flow path; 112. Second flow path; 12. Needle tip; 121. Needle holder; 122. First connector; 1221. Third flow path; 1222. Through hole; 123. Second connector; 1231. Cavity; 1232. Fourth flow path; 124. Rubber component; 125. Sealing component; 126. Clamping component; 13. Connecting seat; 131. Second sensor; 132. Rotating shaft; 14. Second gear component; 2. Telescopic component; 21. First drive component; 22. Lead screw component; 23. Sliding seat; 24. Sliding rod; 3. Lifting component; 31. Second drive component; 32. First gear component; 33. First sensor. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Please refer to Figures 1 to 10 This utility model provides a sample collection device, comprising:

[0036] The sampling component 1 includes a sampling needle 11 and a needle tip 12. The sampling needle 11 can perform horizontal reciprocating motion relative to the needle tip 12.

[0037] Telescopic component 2 is connected to sampling needle 11 and can drive sampling needle 11 to perform horizontal reciprocating motion to extend or retract needle tip 12, so that sampling needle 11 can perform sampling inside and outside needle tip 12.

[0038] The lifting component 3 is connected to the sampling component 1 and can drive the sampling component 1 to rotate so that the sampling needle 11 located outside the needle tip 12 can perform tilted external sampling.

[0039] In this embodiment, the sample collection device includes a sampling component 1, a telescopic component 2, and a lifting component 3. The sampling component 1 is connected to the telescopic component 2 and the lifting component 3, respectively. The telescopic component 2 can drive the sampling component 1 to reciprocate in the horizontal direction, thereby realizing sampling in the horizontal direction; the lifting component 3 can drive the sampling component 1 to rotate, thereby realizing sampling at multiple angle positions.

[0040] Specifically, the sampling component 1 includes a sampling needle 11 and a needle tip 12. The sampling needle 11 can reciprocate horizontally relative to the needle tip 12. The sampling needle 11 is connected to a telescopic component 2, which can drive the sampling needle 11 to reciprocate horizontally relative to the needle tip 12, thereby allowing the sampling needle 11 to extend beyond or retract into the needle tip 12. When the sampling needle 11 is not driven by the telescopic component 2, it is positioned inside the needle tip 12, and this position is the zero-sampling position of the sample collection device. Sampling can be performed even when the sampling needle 11 is inside the needle tip 12. When the telescopic component 2 drives the sampling needle 11 to extend beyond the needle tip 12, sampling can also be performed outside the needle tip 12, and this position is the horizontal sampling position of the sample collection device. The telescopic component 2 can also drive the sampling needle 11, which is in the horizontal sampling position, to retract into the needle tip 12, so that the sampling needle 11 is at the zero position for sampling.

[0041] Specifically, the lifting component 3 is connected to the sampling component 1. The lifting component 3 can drive the sampling component 1 to rotate. When the sampling component 1 is rotated to an inclined state, the sampling needle 11 extending from the needle tip 12 directly samples from the outside, thus enabling the sampling component to perform multi-angle sampling. The sampling position when the sampling component 1 rotates is the angle sampling position of this sample sampling device. Specifically, the sampling component 1 can be rotated to an inclined state by the lifting component 3 first, and then the sampling needle 11 can be driven to extend from the needle tip 12 by the telescopic component 2 for inclined sampling. Alternatively, the sampling needle 11 can be driven to extend from the needle tip 12 by the telescopic component 2 first, and then the sampling needle 11 can be rotated by the lifting component 3 to an inclined state for external sampling. The specific angle at which the lifting component 3 can drive the sampling component 1 to rotate is not limited and can be set according to actual production needs.

[0042] Because existing blood gas analyzers can only sample in the horizontal direction, while the sample collection device in this embodiment can not only sample in the horizontal direction, but also rotate to achieve multi-angle sampling, so that the sampling needle 11 has the function of angle change.

[0043] Furthermore, one end of the sampling needle 11 is connected to the telescopic component 2, and the other end is disposed inside the needle tip 12. The telescopic component 2 can drive the sampling needle 11 to perform horizontal reciprocating motion to extend or retract the needle tip 12, thereby enabling the sampling needle 11 to perform sampling inside and outside the needle tip 12.

[0044] In this embodiment, the telescopic component 2 is connected to one end of the sampling needle 11 and drives the sampling needle 11 to perform a horizontal reciprocating motion, thereby causing the other end of the sampling needle 11 to extend or retract relative to the needle tip 12. When the sampling needle 11 is inside the needle tip 12, it is a zero-position sampling position, and when the sampling needle 11 extends outside the needle tip 12 for sampling, it is a horizontal sampling position. The telescopic component 2 can drive the sampling needle 11 to sample at both the zero position inside the needle tip 12 and the horizontal sampling position outside.

[0045] Furthermore, the two ends of the sampling needle 11 include a first flow path 111 and a second flow path 112 that are interconnected. The first flow path 111 is used to connect to the main flow path, and the second flow path 112 is used for sampling. The telescopic component 2 can drive the sampling needle 11 to extend or retract the second flow path 112 to perform sampling. The lifting component 3 can drive the sampling needle 11 to rotate and drive the second flow path 112 extending from the needle tip 12 to perform inclined external sampling.

[0046] In this embodiment, the two ends of the sampling needle 11 are a first flow port 111 and a second flow port 112, which are interconnected. The first flow port 111 is used to connect to the main flow path, and the second flow port 112 is used for sampling. The second flow port 112 transmits the collected sample to the main flow path through the first flow port 111.

[0047] Specifically, the telescopic component 2 can drive the sampling needle 11 to extend and retract within the needle tip 12 through its second flow path 112. It can extend outside the needle tip 12 through the second flow path 112 to perform sampling at the horizontal sampling position, or retract inside the needle tip 12 to perform sampling at the zero position through the second flow path 112.

[0048] Specifically, when the lifting component 3 drives the sampling needle 11 to rotate, the sampling needle 11 is in a state of extending out of the needle tip 12 and contacting the outside air for external sampling. Since the sampling needle 11 is in an inclined state, the container for the sample does not need to be sealed. When the sample contacts the second flow port 112, the sample will not fall out. The first flow port 111 provides a negative pressure, so that when the sample contacts the second flow port 112, the sample can be directly sucked into the main flow path through the first flow port 111.

[0049] Furthermore, the needle tip 12 includes a third flow port 1221. When the telescopic component 2 drives the sampling needle 11 to retract into the needle tip 12, the second flow port 112 communicates with the third flow port 1221 to collect samples. When the telescopic component 2 drives the sampling needle 11 to extend out of the needle tip 12, the second flow port 112 directly collects external samples.

[0050] In this embodiment, a third flow port 1221 is provided inside the needle tip 12. The third flow port 1221 is a reagent inlet. When the telescopic component 2 drives the sampling needle 11 to retract into the needle tip 12 and reach the zero position, the second flow port 112 of the sampling needle 11 connects with the third flow port 1221, thereby collecting the sample. Specifically, the first flow port 111 provides a negative pressure, allowing the sample reagent in the third flow port 1221 to flow into the first flow port 111 through the second flow port 112, thus flowing into the main flow path.

[0051] When the telescopic assembly 2 drives the sampling needle 11 to extend beyond the needle tip 12, it is in a horizontal sampling position. The second flow port 112 of the sampling needle 11 extends beyond the needle tip 12, thereby allowing direct collection of external samples. Specifically, the first flow port 111 provides a negative pressure, and when the sample in the sealed bottle is inserted into the second flow port 112, the sample can be directly drawn into the main flow path through the first flow port 112.

[0052] Furthermore, the needle assembly 12 includes a hollow needle holder 121, which includes a first connector 122 and a second connector 123. The sampling needle 11 can reciprocate horizontally within the first connector 122 and the second connector 123. The first connector 122 is also provided with a third flow port 1221 for connecting the sample. A clamping member 126 is also sleeved on the outside of the needle holder 121.

[0053] In this embodiment, the needle tip 12 includes a needle holder 121, which is hollow inside and has a first connector 122 and a second connector 123 inside. The sampling needle 11 can perform horizontal reciprocating motion within the first connector 122 and the second connector 123 under the drive of the telescopic component 2.

[0054] Specifically, a third flow path 1221 is provided within the first connector 122. When the telescopic component 2 drives the sampling needle 11 to perform horizontal reciprocating motion, it can drive the sampling needle 11 to move from within the first connector 122 to within or outside the second connector 123, or drive the sampling needle 11 to retract from outside the needle holder 121 into the second connector 123 or the first connector 122. The third flow path 1221 within the first connector 122 means that when the sampling needle 11 is within the first connector 122, the second flow path 112 of the sampling needle 11 can connect with the third flow path 1221 for sampling. This is the zero position of the device; that is, the flow path when the second flow path 122 and the third flow path 1221 are connected is the zero-position flow path of the device.

[0055] Specifically, a clamping member 123 is also fitted on the needle holder 121. The clamping member 123 can fix the first connecting member 122 and the second connecting member 123 so that the first connecting member 122 and the second connecting member 123 inside the needle holder 121 will not fall out.

[0056] Furthermore, the first connector 122 is provided with a through hole 1222 for accommodating the sampling needle 11 to perform horizontal reciprocating motion. The through hole 1222 is connected to a third flow path 1221, and a sealing element 125 is provided at each end of the through hole 1222. The two sealing elements 125 are respectively provided with guide holes for the sampling needle 11 to pass through and move relative to each other. A rubber element 124 is provided between the first connector 122 and the second connector 123.

[0057] In this embodiment, a through hole 1222 is also provided in the first connector 122. The telescopic component 2 can drive the sampling needle 11 to move horizontally back and forth in the through hole 1222 in the first connector 122. A third flow path 1221 is provided in the through hole 1222. When the sampling needle 11 is in the through hole 1222, it can communicate with the third flow path 1221 to absorb the sample.

[0058] A sealing element 123 is fixedly installed at both ends of the through hole 1222. The sealing element 123 is a hard sealing ring. When the sampling needle 11 is in the first connecting member 122 and the second flow port 112 and the third flow port 1221 of the sampling needle 11 are connected and sampling at the zero position, the two ends of the through hole 1222 are sealed by the sealing element 123, which can prevent air leakage in the flow path when the second flow port 112 and the third flow port 1221 are connected at the zero position. The two sealing elements 125 are provided with guide holes. The sampling needle 11 can pass through the guide holes on the sealing elements 125 and move horizontally back and forth relative to the sealing elements 125 in the first connecting member 122. The sampling needle 11 can pass through the guide holes on both sealing elements 125 at the same time and enter the second connecting member 123.

[0059] Specifically, the third flow port 1221 is located between the two seals 125. When the second flow port 112 of the sampling member 11 is connected to the third flow port 1221, the second flow port 112 of the sampling member 11 is also located between the two seals 125.

[0060] Furthermore, a rubber component 124 is provided between the first connector 122 and the second connector 123. A cavity 1231 is provided inside the second connector 123, and the cavity 1231 communicates with the through hole 1222 and the outside. When the sampling needle 11 enters the first connector 122 from the second connector 123, the rubber component 124 can clean the residual sample on the outer wall of the sampling needle 11 into the cavity 1231. A fourth flow port 1232 is also provided inside the cavity 1231, which is used to process the residual sample inside the cavity 1231. The hardness of the sealing component 125 is greater than the hardness of the rubber component 124.

[0061] In this embodiment, a rubber component 124 is provided between the first connector 122 and the second connector 123. A cavity 1231 is also provided in the second connector 123. The cavity 1231 in the second connector 123 is connected to the external space and the through hole 1222 in the first connector 122, so that the sampling needle 11 can perform horizontal reciprocating motion relative to the first connector 122, the second connector 123 and the external space. This allows the sampling needle 11 to move from the first connector 122 to the second connector 123 and to be exposed on the second connector 123 through the through hole 1222 and the cavity 1231.

[0062] When the sampling needle 11 is in the horizontal sampling position, that is, after collecting the external sample from outside the needle tip 12, the telescopic component 2 drives the sampling needle 11 to retract from outside the needle tip 12, that is, from outside the second connector 123 back into the second connector 123. The sample remaining on the outer wall of the sampling needle 11 can drip into the cavity 1231. When the telescopic component 2 drives the sampling needle 11 to retract from the second connector 123 back into the first connector 122, because a rubber component 124 is provided between the second connector 123 and the first connector 122, that is, when the sampling needle 11 moves from the cavity 1231 of the second connector 123 to the through hole 1222 of the first connector 122, it will pass through the rubber component 124. The rubber component 124 will scrape off the sample remaining on the sampling needle 11 and let it flow into the cavity 1231 in the second connector 123. The rubber component 124 scrapes the sample remaining on the sampling needle 11 into the cavity 1231 of the second connector 123, which can prevent the sample remaining on the sampling needle 11 from dripping and contaminating the nearby test area, thus giving the device a cleaning function for the outer wall of the sampling needle 11.

[0063] Specifically, a fourth flow port 1232 is also provided in the cavity 1231, which can provide a negative pressure to draw away the sample remaining in the cavity 1231.

[0064] In existing sample collection devices, the rubber components and seals have the same hardness. However, excessive hardness leads to excessive sliding resistance between the sampling needle and the rubber component, while insufficient hardness results in insufficient lifespan and potential leakage. Therefore, in this embodiment, the seal 125 has a harder hardness than the rubber component 124. The seal 125 is harder, ensuring proper sealing and preventing leakage, while the rubber component 124 is softer, thus solving the problem of excessive sliding resistance between the sampling needle 11 and the rubber component 124. This not only achieves a sealing function for the flow path but also extends the device's lifespan. Specifically, the seal 125 in this embodiment is a sealing ring.

[0065] Furthermore, the telescopic assembly 2 includes a first driving member 21, a lead screw 22, a sliding seat 23, and a slide bar 24. The sliding seat 23 is slidably disposed on the slide bar 24 and is also connected to the lead screw 22. The sampling needle 11 is connected to the sliding seat 23. The first driving member 21 can drive the lead screw 22 to rotate forward or reverse to drive the sliding seat 23 to slide on the slide bar 24, thereby linking the sampling needle 11 to extend or retract the needle tip 12.

[0066] In this embodiment, the telescopic assembly 2 includes a first driving member 21, a lead screw 22, a sliding seat 23, and a sliding rod 24. The first driving member 21 is connected to the lead screw 22 and can drive the lead screw 22 to rotate clockwise or counterclockwise, thereby driving the sampling member 11 to extend or retract relative to the needle tip 11. The sliding seat 23 is slidably disposed on the sliding rod 24 and is also disposed on the lead screw 22. When the first driving member 21 drives the lead screw 22 to rotate clockwise or counterclockwise, the lead screw 22 will drive the sliding seat 23 to move towards or away from the needle tip 12. The sampling needle 11 is connected to the sliding seat 23. When the sliding seat 23 moves towards or away from the needle tip 12, the sampling needle 11 also moves towards or away from the needle tip 12, thereby allowing the sampling needle 11 to extend or retract from the needle tip 12.

[0067] Specifically, when the first driving member 21 drives the lead screw 22 to rotate in the forward direction, the lead screw 22 drives the sliding seat 23 to move on the slide rod 24 towards the needle tip 12, and the sampling needle 11 on the sliding seat 23 will extend out of the needle tip 12; when the first driving member 21 drives the lead screw 22 to rotate in the reverse direction, the lead screw 22 drives the sliding seat 23 to move on the slide rod 24 away from the needle tip 12, and the sampling needle 11 connected to the sliding seat 23 will retract into the needle tip 12. In this embodiment, the first driving member 21 is a lead screw motor. The type of the first driving member 21 is not limited and is set according to actual production needs.

[0068] Furthermore, the lifting component 3 includes a second driving member 31 and a first gear member 32. The sampling component 1 is connected to the first gear member 32 through the second gear member 14. The second driving member 31 can drive the first gear member 32 to rotate so as to drive the sampling component 1 to rotate. A first sensor 33 is provided on the outer wall of the second driving member 31 to sense whether the sampling component 1 is in a horizontal state.

[0069] In this embodiment, the lifting component 3 includes a second driving member 31 and a first gear member 32. The sampling component 1 is connected to the first gear member 32 through the second gear member 14. The second driving member 31 can drive the first gear member 32 to rotate. When the first gear member 32 rotates, it simultaneously drives the second gear member 14 to rotate, thereby driving the sampling component 1 to rotate and lift.

[0070] Specifically, when the lifting component 3 drives the sampling component 1 to rotate, the sampling needle 11 needs to be sampled externally. Therefore, before or after the lifting component 3 drives the sampling component 1 to rotate, the telescopic component 2 needs to drive the sampling needle 11 outside the needle group for tilt sampling.

[0071] Specifically, the second driving component 31 is also equipped with a first sensor 33. The first sensor 33 is used to sense whether the sampling component 1 has returned to its original position. When the sampling component 1 is in a horizontal state, the second driving component 31 drives the sampling component 1 to rotate clockwise. The rotation angle of the sampling component 1 is not limited here and is set according to actual production needs. After the sampling component 1 has completed sampling at the rotation angle, the second driving component 31 can rotate the sampling component 1 counterclockwise, thereby rotating the sampling component 1 from the tilted state to a horizontal state. At this time, the first sensor 33 is used to sense whether the sampling component 1 has rotated to a horizontal state. If it senses that the sampling component 1 has returned to its original state, the second driving component 31 stops driving the rotation of the sampling component 1.

[0072] Furthermore, the sampling assembly 1 also includes a connecting seat 13. One side of the connecting seat 13 is connected to a sampling needle 11, a needle tip 12, and a second sensor 131 for sensing whether the sampling needle 11 has returned to its original position. The other side is connected to the first gear 32 via a second gear 14. A rotating shaft 132 is also provided on the side of the connecting seat 13 away from the sampling needle 11.

[0073] In this embodiment, the sampling component 1 further includes a connecting seat 13, on which the sampling component 1 and the telescopic component 2 are disposed. The connecting seat 13 is provided with a second gear component 14, so that the second driving component 31 can drive the second gear component 14 to rotate the sampling component 1 on the connecting seat 13 through the first gear component 32 to perform sampling.

[0074] Specifically, a second sensor 131 is also provided on the connecting seat 13. When the first driving member 21 drives the lead screw 22 to rotate forward or reverse, causing the sampling needle 11 to move in the horizontal direction, and when the first driving member 21 drives the lead screw 22 to reverse, causing the sampling needle 11 to retract into the needle head member 12, the second sensor 131 can sense whether the sampling needle 11 has reversed to its original position. The original position of the sampling needle 11 is its zero sampling position. If it continues to reverse, it will cause the sampling needle 11 to retract outside the needle head member 12. Therefore, by setting the second sensor 131 to sense whether the sampling needle 11 has retracted to the zero position, if it is sensed, the operation of the first driving member 21 is stopped.

[0075] The connecting seat 13 is also equipped with a rotating shaft 132, and the sample collection device is fixedly connected to the whole machine through the rotating shaft 132 and the lifting component 3.

[0076] This invention provides a sample collection device, comprising: a sampling assembly including a sampling needle and a needle tip, the sampling needle being capable of horizontal reciprocating motion relative to the needle tip; a telescopic assembly connected to the sampling needle and capable of driving the sampling needle to perform horizontal reciprocating motion to extend or retract the needle tip, allowing the sampling needle to sample both inside and outside the needle tip; and a lifting assembly connected to the sampling assembly and capable of driving the sampling assembly to rotate so that the sampling needle located outside the needle tip can perform inclined external sampling. Through the sample collection device provided by this invention, the telescopic assembly can drive the sampling needle to perform horizontal reciprocating motion, thereby achieving two working positions: inside and outside the needle tip; the lifting assembly can also drive the sampling needle to rotate for sampling, thus enabling the device to achieve sampling of the sampling needle in the horizontal direction and at multiple angles of inclination through the telescopic assembly and the lifting assembly.

[0077] It should be noted that the various embodiments in this utility model are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0078] It should also be noted that, in the present invention, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0079] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined in the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sample collection device, characterized by, include: The sampling assembly includes a sampling needle and a needle tip, wherein the sampling needle is capable of horizontal reciprocating motion relative to the needle tip; A telescopic assembly is connected to the sampling needle and can drive the sampling needle to perform horizontal reciprocating motion to extend or retract the needle tip, so that the sampling needle can perform sampling inside and outside the needle tip. A lifting assembly, connected to the sampling assembly, is configured to drive the sampling assembly to rotate so that the sampling needle located outside the needle tip can perform tilted external sampling.

2. The sample collection device of claim 1, wherein, One end of the sampling needle is connected to the telescopic component, and the other end is disposed inside the needle tip. The telescopic component can drive the sampling needle to perform horizontal reciprocating motion to extend or retract the needle tip, thereby enabling the sampling needle to perform sampling inside and outside the needle tip.

3. The sample collection device of claim 2, wherein, The sampling needle has a first flow port and a second flow port that are connected to each other at both ends. The first flow port is used to connect to the main flow path, and the second flow port is used for sampling. The telescopic component can drive the sampling needle to extend or retract the second flow port of the needle tip for sampling. The lifting component can drive the sampling needle to rotate and drive the second flow port extending out of the needle tip to perform inclined external sampling.

4. The sample collection device of claim 3, wherein, The needle tip includes a third flow port. When the telescopic component drives the sampling needle to retract into the needle tip, the second flow port communicates with the third flow port to collect samples. When the telescopic component drives the sampling needle to extend out of the needle tip, the second flow port directly collects external samples.

5. The sample collection device of claim 4, wherein, The needle assembly includes a hollow needle holder, which includes a first connector and a second connector. The sampling needle can reciprocate horizontally within the first connector and the second connector. The first connector is also provided with a third flow port for connecting the sample. A clamping member is also sleeved on the outside of the needle holder.

6. The sample collection device of claim 5, wherein, The first connector has a through hole for accommodating the sampling needle to perform horizontal reciprocating motion. The through hole is connected to the third flow port, and a sealing element is provided at each end of the through hole. The two sealing elements are respectively provided with guide holes for the sampling needle to pass through and move relative to each other.

7. The sample collection device of claim 6, wherein, A rubber component is provided between the first connector and the second connector. A cavity is provided inside the second connector, and the cavity communicates with the through hole and the outside. When the sampling needle enters the first connector from the second connector, the rubber component can clean the residual sample on the outer wall of the sampling needle into the cavity. A fourth flow port is also provided inside the cavity, which is used to process the residual sample in the cavity. The hardness of the sealing component is greater than that of the rubber component.

8. The sample collection device of claim 2, wherein, The telescopic assembly includes a first driving member, a lead screw, a sliding seat, and a sliding rod. The sliding seat is slidably disposed on the sliding rod and is also connected to the lead screw. The sampling needle is connected to the sliding seat. The first driving member can drive the lead screw to rotate forward or backward to drive the sliding seat to slide on the sliding rod, thereby linking the sampling needle to extend or retract the needle tip.

9. The sample collection device of claim 1, wherein, The lifting component includes a second driving component and a first gear component. The sampling component is meshed with the first gear component through the second gear component. The second driving component can drive the first gear component to rotate so as to drive the sampling component to rotate. A first sensor is provided on the outer wall of the second driving member to sense whether the sampling component is in a horizontal state.

10. The sample collection device of claim 9, wherein, The sampling assembly also includes a connector, one side of which is connected to the sampling needle, the needle tip, and a second sensor for sensing whether the sampling needle has returned to its original position, and the other side is connected to the first gear through the second gear. A rotating shaft is also provided on the side of the connector away from the sampling needle.

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