Glyoxal sampling device and sampling method thereof

Abstract

The invention relates to the technical field of glyoxal sampling equipment, and discloses a glyoxal sampling device and a sampling method thereof.The glyoxal sampling device comprises a main body, a placement frame is fixedly connected to the top of the main body, a sample storage plate is fixedly connected to the side, close to the placement frame, of the main body, and a fixing frame is fixedly connected to the side, close to the sample storage plate, of the main body; first electric push rods are fixedly connected to the inner wall of the bottom of the fixing frame. The top disc moves upwards to extract residual gas between the bottom of the sample tube and the fixed disc through the round holes in the fixed disc, so that the sampling quantity deviation and the influence on the sample quality caused by the existence of the gas when the sample tube sucks a sample are reduced, and the sample sucking quantity and the subsequent detection accuracy can be improved; the sampling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of glyoxal sampling equipment technology, specifically to a glyoxal sampling device and its sampling method. Background Technology

[0002] Glyoxal is a volatile organic compound (VOC) that plays an important role in atmospheric chemical processes. In urban and industrial areas, glyoxal is released from processes such as vehicle exhaust and industrial emissions. When sampling glyoxal samples, a sampling tube that can absorb and expel gas is required. When the sampling tube is inserted into the sample, gas residue remains at the tube opening during absorption. This can cause air to enter and occupy some space inside the sample tube, potentially reducing the actual amount of sample absorbed. Consequently, the sample amount absorbed may be lower than the expected set value, leading to a deviation in sample quantity due to the presence of gas and affecting the accuracy of subsequent tests. Summary of the Invention

[0003] The purpose of this invention is to provide a glyoxal sampling device and sampling method to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a glyoxal sampling device, comprising a main body, a placement frame fixedly connected to the top of the main body, a sample storage plate fixedly connected to the side of the main body near the placement frame, a fixing frame fixedly connected to the side of the main body near the sample storage plate, and an electric push rod fixedly connected to the bottom inner wall of the fixing frame, and further comprising; The transmission mechanism includes a motor fixedly connected to the output end of an electric push rod, a support frame rotatably connected to the output end of the motor, and an electric push rod II fixedly connected to the side wall of the support frame. The sampling mechanism includes a sample tube fixedly connected to the end of the support frame away from the motor. A raised ring is fixedly connected inside the sample tube. An inner cylinder is fixedly connected inside the bottom of the raised ring. Several spring rods are fixedly connected to the bottom inner wall of the sample tube. A lifting ring is fixedly connected to the top of the several spring rods.

[0005] Furthermore, the sample tube is equipped with an aspiration mechanism, which includes an extraction rod that is slidably connected inside the sample tube. The top of the extraction rod extends through the top outer wall of the sample tube and is fixedly connected to the output end of the electric push rod. Several guide plates are fixedly connected to the outer surface of the extraction rod inside the sample tube.

[0006] Furthermore, a fixed plate is fixedly connected to the bottom of the extraction rod, a fixed cylinder is fixedly connected to the top of the fixed plate, several round holes are opened at the bottom of the fixed cylinder, the bottom of the round holes penetrates to the bottom inner wall of the fixed plate, and a one-way ball is fixedly connected to the top inner wall of the round holes.

[0007] Furthermore, a sliding mechanism is provided on the outer surface of the extraction rod. The sliding mechanism includes a top plate that is slidably connected inside the fixed cylinder. Several long rods are fixedly connected to the bottom of the extraction rod. The end of the long rod away from the top plate passes through the bottom outer wall of the fixed plate and extends to the outside. The extended ends of the several long rods are fixedly connected to the base plate. A return spring is slidably connected to the outer surface of the long rod located inside the fixed cylinder. The top of the return spring is fixedly connected to the top plate.

[0008] Furthermore, the bottom of the reset spring is fixedly connected to the top outer wall of the fixed plate, and several obtuse-angled plates are fixedly connected to the top of the top plate. The end of the obtuse-angled plate away from the top plate is rotatably connected to the side wall of the guide plate. Several connecting grooves are opened inside the fixed plate, and the bottom of the connecting grooves extends through to the bottom outer wall of the fixed plate. A spring plate is fixedly connected to the top inner wall of the connecting grooves.

[0009] Furthermore, the sample tube is equipped with an auxiliary mechanism, which includes several triangular elastic plates fixedly connected to the inner wall of the inner cylinder. The bottom of the several triangular elastic plates is rotatably connected to a connecting plate 1, and the bottom of the connecting plate 1 is rotatably connected to a connecting plate 2. The top of the connecting plate 1 has several round holes 2, and the bottom of the several round holes 2 extends to the bottom of the connecting plate 2. The bottom of the connecting plate 1 is fixedly connected to several flexible layers, and the bottom of the flexible layers is fixedly connected to the top of the connecting plate 2. The bottom of the connecting plate 1 is fixedly connected to a reset spring 2, and the bottom of the reset spring 2 is fixedly connected to the top of the connecting plate 2.

[0010] Furthermore, the sample tube is equipped with a rotating mechanism, which includes a conical plate rotatably connected to the bottom of the connecting disk II. Several conical plates are arranged in a group of four, circumferentially arrayed around the center of the circular hole II. An inclined plate is fixedly connected to the side of the conical plate away from the flexible layer. An intermediate plate is rotatably connected to the end of the inclined plate away from the conical plate. The ends of several intermediate plates away from the inclined plates are rotatably connected to the bottom outer wall of the connecting disk I. A fixing ring is provided at the top of the four conical plates. The outer surface of the fixing ring is fixedly connected to the inner wall of the circular hole II on the connecting disk I. Several tension springs are fixedly connected to the bottom of the fixing ring. A lifting ring II is fixedly connected to the end of several tension springs away from the fixing ring. The outer surface of the lifting ring II is in contact with the side wall of the flexible layer.

[0011] Furthermore, the sample tube is equipped with a cleaning mechanism, which includes several fixed tubes fixedly connected to the inner wall of the sample tube located outside the inner cylinder. The top of the fixed tubes penetrates through the top outer wall of the lifting ring and extends to the outside. Several air inlets are opened on the outer surface of the fixed tubes located outside the lifting ring. A one-way tube is fixedly connected to the bottom of the fixed tube. The end of the one-way tube away from the fixed tube penetrates through the outer wall of the inner cylinder and extends to the outside. An air outlet plate is fixedly connected to the extended end of the one-way tube. The air outlet plate is connected to the one-way tube. A connecting tube is provided at the top of the fixed tube. The end of the connecting tube near the fixed cylinder penetrates through the inner wall of the fixed cylinder. The end of the connecting tube away from the fixed cylinder penetrates through the interior of the connecting groove. The connecting groove is connected to the interior of the fixed cylinder through the connecting tube.

[0012] Furthermore, a method of using a glyoxal sampling device, the glyoxal sampling device, the method comprising the following steps: S1: Place the sample and sampling bottle; S2: Rotate to adjust position; S3: Moving suction and discharge.

[0013] The present invention has the following beneficial effects: 1. In this invention, when the extraction rod slides upward inside the sample tube, the upward movement of the extraction rod will cause the fixed plate to slide upward. When the fixed plate slides upward, it will cause the top plate to move upward synchronously. When the top plate moves upward, the obtuse-angled plate on the top plate will disengage from the protruding ring inside the sample tube. At this time, multiple return springs at the bottom of the top plate will push the top plate to slide upward inside the fixed tube under their own elastic force. When the top plate slides upward, a certain negative pressure area will be generated inside the fixed tube. At this time, the one-way ball will open under the influence of the negative pressure inside the fixed tube. Subsequently, as the top plate continues to move upward, the upward movement of the top plate will extract the gas remaining between the bottom of the sample tube and the fixed plate through the round hole on the fixed plate. This reduces the deviation in the amount of sample taken and the impact on the sample quality caused by the presence of gas when the sample tube is aspirated. In this way, the sample volume can be improved and the accuracy of subsequent detection can be improved, thus improving the sampling efficiency.

[0014] 2. In this invention, when the fixed plate moves upward and causes the chassis to slide synchronously, the chassis slides and disengages from the triangular elastic plate. At this time, the triangular elastic plate, under its own elastic force, causes the connecting plate one to move upward. Subsequently, as the connecting plate one moves upward, the connecting plate two slides downward under the elasticity of the return spring two at the bottom of the connecting plate one. When the connecting plate two slides downward, the inclined plate is pulled by the middle plate at the bottom of the connecting plate one, causing the conical plate to rotate. When multiple conical plates rotate, they push the flexible layer and form a conical cylindrical structure inside the circular hole two. When the flow channel inside the second circular hole narrows, the sample enters through the narrow channel inside the second circular hole as the extraction rod moves upward to extract the sample. As the sample flows upward through the second circular hole and passes through the small channel formed by the conical plate, the flow velocity of the sample entering the sample tube increases. This makes the flow velocity of the sample entering the sample tube more uniform and reduces the deposition or floating phenomenon of the sample at different positions in the sample tube due to the difference in flow velocity. This ensures the homogeneity of the sample composition and improves the accuracy of subsequent sample analysis.

[0015] 3. In this invention, when multiple conical plates rotate to form a conical cylinder, the rotation of the multiple conical plates will compress the lifting ring two. After being compressed, the lifting ring two will stretch multiple tension springs and slide downward. When the sample inside the sample tube is discharged, the outer wall of the base plate will be compressed by the triangular elastic plate. After being compressed, the multiple triangular elastic plates will push the connecting plate one to slide downward. Then, when the bottom of the connecting plate two contacts the bottom inside of the sample tube, the multiple conical plates will reset as the connecting plate one moves downward. At this time, the multiple conical plates between the connecting plate two and the connecting plate one will also reset. When the multiple conical plates reset, the lifting ring two will slide upward and reset under the tension of the multiple tension springs at the top. Since the sample has a certain degree of adhesion, when the lifting ring two resets upward, it will scrape off the sample adhering to the inner wall of the flexible layer, reducing the situation of sample residue inside the sample tube when discharged. It can also reduce the impact of sample adhesion on the sample quality of the next sample aspiration, ensuring the accuracy of sample discharge.

[0016] 4. In this invention, when the extraction rod drives the fixed plate to slide downwards, the downward movement of the fixed plate will compress the lifting ring. Subsequently, as the fixed plate continues to slide downwards, the fixed tube will push the spring plate inside through the connecting groove at the bottom of the fixed plate and enter the interior of the connecting groove. Then, as the fixed plate slides downwards, it will drive multiple obtuse-angled plates to slide downwards through the top plate. When the multiple obtuse-angled plates slide downwards and are compressed by the protruding ring, the multiple obtuse-angled plates will push the top plate downwards under the compression of the protruding ring. Subsequently, as the top plate slides downwards, it will compress the gas entering the fixed cylinder. At this time, the one-way ball will be in a closed state. Subsequently, the gas inside the fixed cylinder will be squeezed by the top plate and enter the connecting groove through the connecting tube. It will then enter the inner wall of the outlet plate through the air inlet on the upper surface of the fixed tube and blow onto the inner wall of the inner cylinder. When the gas blows onto the inner wall of the inner cylinder, the sample can slide down through the bottom inner wall of the sample tube and be discharged under the blowing of the gas. This can reduce the possibility of sample residue inside the sample tube when it is discharged, thereby further enhancing the accuracy of sample discharge and improving the accuracy of subsequent detection.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of a partial cross-sectional structure of the sample tube of the present invention; Figure 4 This is a schematic diagram of the sampling mechanism of the present invention; Figure 5 This is a schematic diagram of the sliding mechanism of the present invention; Figure 6 This is a schematic diagram of the auxiliary mechanism of the present invention; Figure 7 This is a schematic diagram of the rotating mechanism of the present invention; Figure 8 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the sampling method of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Placement frame; 102. Sample storage plate; 103. Fixing frame; 104. Electric actuator one; 2. Transmission mechanism; 201. Motor; 202. Support frame; 203. Electric actuator two; 3. Sampling mechanism; 301. Sample tube; 302. Protruding ring; 303. Inner cylinder; 304. Spring rod; 305. Lifting ring one; 4. Suction mechanism; 401. Extraction rod; 402. Guide plate; 403. Fixing plate; 404. Fixing cylinder; 405. 5. Sliding mechanism; 501. Top plate; 502. Base plate; 503. Obtuse angle plate; 6. Auxiliary mechanism; 601. Triangular elastic plate; 602. Connecting plate one; 603. Connecting plate two; 604. Flexible layer; 7. Rotating mechanism; 701. Conical plate; 702. Inclined plate; 703. Middle plate; 704. Fixed ring; 705. Lifting ring two; 8. Cleaning mechanism; 801. Fixed pipe; 802. One-way pipe; 803. Air outlet plate; 804. Connecting pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1 - Figure 8 As shown, the present invention is a glyoxal sampling device, including a main body 1, a placement frame 101 fixedly connected to the top of the main body 1, a sample storage plate 102 fixedly connected to the side of the main body 1 near the placement frame 101, a fixing frame 103 fixedly connected to the side of the main body 1 near the sample storage plate 102, and an electric push rod 104 fixedly connected to the bottom inner wall of the fixing frame 103, and also includes; Transmission mechanism 2 includes a motor 201 fixedly connected to the output end of electric push rod 104, a support frame 202 rotatably connected to the output end of motor 201, and an electric push rod 203 fixedly connected to the side wall of support frame 202. The sampling mechanism 3 includes a sample tube 301 fixedly connected to the end of the support frame 202 away from the motor 201. A protruding ring 302 is fixedly connected inside the sample tube 301. An inner cylinder 303 is fixedly connected inside the bottom of the protruding ring 302. Several spring rods 304 are fixedly connected to the bottom inner wall of the sample tube 301. A lifting ring 305 is fixedly connected to the top of the spring rods 304. First, the sample bottle to be sampled is placed in the placement frame 101. Then, the sampling bottle to be collected is placed inside the placement frame 101. After that, the motor 201 is started. When the motor 201 is working, it will drive the support frame 202 and the sample tube 301 to rotate. When the sample tube 301 rotates to the top of the placement frame 101, the motor 201 is stopped and the electric push rod 104 is started. When the electric push rod 104 is working, it will drive the sample tube 301 to descend.

[0023] The sample tube 301 is equipped with an aspiration mechanism 4. The aspiration mechanism 4 includes an extraction rod 401 that is slidably connected inside the sample tube 301. The top of the extraction rod 401 extends through the top outer wall of the sample tube 301 and is fixedly connected to the output end of the electric push rod 203. Several guide plates 402 are fixedly connected to the outer surface of the extraction rod 401 inside the sample tube 301. When the extraction rod 401 slides upward inside the sample tube 301, the upward movement of the extraction rod 401 will drive the fixed plate 403 to slide upward. When the fixed plate 403 slides upward, it will drive the top plate 501 to move upward synchronously.

[0024] A fixed plate 403 is fixedly connected to the bottom of the extraction rod 401, and a fixed cylinder 404 is fixedly connected to the top of the fixed plate 403. Several round holes are opened at the bottom of the fixed cylinder 404, and the bottom of the round holes extends to the bottom inner wall of the fixed plate 403. A one-way ball 405 is fixedly connected to the top inner wall of the round holes. When the top plate 501 slides upward, a certain negative pressure area will be generated inside the fixed cylinder 404. At this time, the one-way ball 405 will open under the influence of the negative pressure inside the fixed cylinder 404.

[0025] A sliding mechanism 5 is provided on the outer surface of the extraction rod 401. The sliding mechanism 5 includes a top plate 501 slidably connected inside the fixed cylinder 404. Several long rods are fixedly connected to the bottom of the extraction rod 401. The end of the long rod away from the top plate 501 passes through the bottom outer wall of the fixed plate 403 and extends to the outside. The extended ends of the long rods are fixedly connected to the base plate 502. A return spring is slidably connected to the outer surface of the long rod inside the fixed cylinder 404. The top of the return spring is fixedly connected to the top plate 501. Subsequently, when the top plate 501 continues to move upward, the upward movement of the top plate 501 will extract the gas remaining between the bottom of the sample tube 301 and the fixed plate 403 through the round hole on the fixed plate 403.

[0026] The bottom of the reset spring is fixedly connected to the top outer wall of the fixed plate 403. Several obtuse-angled plates 503 are fixedly connected to the top of the top plate 501. The end of the obtuse-angled plate 503 away from the top plate 501 is rotatably connected to the side wall of the guide plate 402. Several connecting grooves are opened inside the fixed plate 403. The bottom of the connecting groove extends to the bottom outer wall of the fixed plate 403. A spring plate is fixedly connected to the top inner wall of the connecting groove. Subsequently, when the top plate 501 continues to move upward, it will drive the base plate 502 to rise through the long rod and block the multiple round holes on the fixed plate 403. At the same time, the lifting ring 305 will also rise under the elastic force of the spring rod 304.

[0027] An auxiliary mechanism 6 is provided inside the sample tube 301. The auxiliary mechanism 6 includes several triangular elastic plates 601 fixedly connected to the inner wall of the inner cylinder 303. The bottom of the several triangular elastic plates 601 is rotatably connected to a connecting plate 602. The bottom of the connecting plate 602 is rotatably connected to a connecting plate 603. The top of the connecting plate 602 has several circular holes 602, the bottom of which extends to the bottom of the connecting plate 603. The bottom of the connecting plate 602 is fixedly connected to several flexible layers 604. The bottom of the flexible layers 604 is connected to the connecting plate. The top of the second plate 603 is fixedly connected, and the bottom of the first plate 602 is fixedly connected to the second return spring. The bottom of the second return spring is fixedly connected to the top of the second plate 603. When the fixed plate 403 moves upward and drives the base plate 502 to slide synchronously, the sliding of the base plate 502 will disengage from the triangular elastic plate 601. At this time, the triangular elastic plate 601 will drive the first plate 602 to move upward under its own elastic force. Then, when the first plate 602 moves upward, the second plate 603 will slide downward under the elasticity of the second return spring at the bottom of the first plate 602.

[0028] The sample tube 301 is internally equipped with a rotating mechanism 7. The rotating mechanism 7 includes a conical plate 701 rotatably connected to the bottom of the connecting disk 603. Several conical plates 701 are arranged in a group of four, arranged in a circumferential array with the center of the circular hole 2 as the center. An inclined plate 702 is fixedly connected to the side of the conical plate 701 away from the flexible layer 604. An intermediate plate 703 is rotatably connected to the end of the inclined plate 702 away from the conical plate 701. The ends of several intermediate plates 703 away from the inclined plate 702 are rotatably connected to the bottom outer wall of the connecting disk 602. A fixing ring 704 is provided at the top of the four conical plates 701. The outer surface of the fixing ring 704 is fixedly connected to the inner wall of the circular hole 2 on the connecting disk 602. Several tension springs are fixedly connected to the bottom of 4. One end of the tension springs away from the fixed ring 704 is fixedly connected to a lifting ring 705. The outer surface of the lifting ring 705 is in contact with the side wall of the flexible layer 604. When the connecting plate 603 slides down, the inclined plate 702 will be pulled by the middle plate 703 at the bottom of the connecting plate 602, which will drive the conical plate 701 to rotate. When multiple conical plates 701 rotate, they will push the flexible layer 604 and form a conical cylindrical structure inside the round hole 2. At this time, the flow channel inside the round hole 2 will become smaller. When the extraction rod 401 moves up to extract the sample, the sample will enter and flow up and down through the narrow channel inside the round hole 2.

[0029] A cleaning mechanism 8 is provided inside the sample tube 301. The cleaning mechanism 8 includes several fixed tubes 801 fixedly connected to the inner wall of the sample tube 301 located outside the inner cylinder 303. The top of the fixed tubes 801 penetrates to the top outer wall of the lifting ring 305 and extends to the outside. Several air inlets are opened on the outer surface of the fixed tubes 801 outside the lifting ring 305. A one-way tube 802 is fixedly connected to the bottom of the fixed tubes 801. The end of the one-way tube 802 away from the fixed tubes 801 penetrates to the outer wall of the inner cylinder 303 and extends to the outside. An air outlet plate 803 is fixedly connected to the extended end of the one-way tube 802. The air outlet plate 803 is connected to the one-way tube 802 in communication. The top of the fixed tubes 801 is provided with a communication... The connecting tube 804 extends from the end near the fixed cylinder 404 to the inner wall of the fixed cylinder 404, and from the end away from the fixed cylinder 404 to the interior of the connecting groove. The connecting groove is connected to the interior of the fixed cylinder 404 through the connecting tube 804. Subsequently, the gas inside the fixed cylinder 404 will be squeezed by the top plate 501 and enter the connecting groove through the connecting tube 804. It will then enter the inner wall of the gas outlet plate 803 through the air inlet on the upper surface of the fixed tube 801 and blow onto the inner wall of the inner cylinder 303. When the gas blows onto the inner wall of the inner cylinder 303, the sample can slide down through the bottom inner wall of the sample tube 301 and be discharged under the blowing of the gas.

[0030] A method for using a glyoxal sampling device, the glyoxal sampling device, the method comprising the following steps: S1: Place the sample and sampling bottle; S2: Rotate to adjust position; S3: Moving suction and discharge.

[0031] In use, first place the sample vial to be collected into the placement frame 101, then place the sampling vial to be collected into the placement frame 101. Next, start the motor 201. The motor 201 will rotate the support frame 202 and the sample tube 301. When the sample tube 301 rotates to the top of the placement frame 101, stop the motor 201 and start the electric push rod 104. The electric push rod 104 will lower the sample tube 301. When the sample tube 301 is inserted into the sample vial, start the electric push rod 203. The electric push rod 203 will slide the extraction rod 401 upwards. As the extraction rod 401 slides upwards, it will draw the sample from the sample vial through the sample tube 301. Then, start the electric push rod 104 and the motor 201 again to rotate the sample tube 301 into the sampling vial inside the sample storage plate 102. Finally, start the electric push rod 203 again to discharge the sample from the sample tube 301, completing the sampling process.

[0032] When the extraction rod 401 slides upward inside the sample tube 301, the upward movement of the extraction rod 401 will cause the fixed plate 403 to slide upward. When the fixed plate 403 slides upward, it will cause the top plate 501 to move upward synchronously. When the top plate 501 moves upward, the obtuse angle plate 503 on the top plate 501 will disengage from the protruding ring 302 inside the sample tube 301. At this time, the multiple return springs at the bottom of the top plate 501 will push the top plate 501 to slide upward inside the fixed cylinder 404 under its own elastic force. When the top plate 501 slides upward, it will move upward within the fixed cylinder. A certain negative pressure zone is generated inside 404. At this time, the one-way ball 405 will open under the influence of the negative pressure inside the fixed cylinder 404. Then, as the top plate 501 continues to move upward, the upward movement of the top plate 501 will extract the gas remaining between the bottom of the sample tube 301 and the fixed plate 403 through the round hole on the fixed plate 403. This reduces the deviation in the amount of sample taken and the impact on the quality of the sample caused by the presence of gas when the sample tube 301 absorbs the sample. In this way, the amount of sample absorbed and the accuracy of subsequent detection can be improved, and the sampling efficiency can be improved.

[0033] Subsequently, as the top plate 501 continues to move upward, it will drive the base plate 502 to rise via the long rod, sealing multiple round holes on the fixed plate 403. Simultaneously, the lifting ring 305 will rise under the elastic force of the spring rod 304. When the upward movement of the fixed plate 403 causes the base plate 502 to slide synchronously, the sliding of the base plate 502 will disengage from the triangular elastic plate 601. At this time, the triangular elastic plate 601 will drive the connecting plate 602 to move upward under its own elastic force. Then, as the connecting plate 602 moves upward, the connecting plate 603 will slide downward under the elastic force of the return spring 2 at the bottom of the connecting plate 602. When the connecting plate 603 slides downward, the inclined plate 702 will be pulled by the middle plate 703 at the bottom of the connecting plate 602, causing the conical plate... When the multiple conical plates 701 rotate, they push the flexible layer 604 and form a conical cylindrical structure inside the second circular hole. At this time, the flow channel inside the second circular hole becomes smaller. When the extraction rod 401 moves upward to extract the sample, the sample enters and flows up and down through the narrow channel inside the second circular hole. When the sample flows upward through the second circular hole and passes through the small channel formed by the conical plates 701, the flow rate of the sample entering the sample tube 301 increases. This makes the flow rate of the sample entering the sample tube 301 more uniform and reduces the deposition or floating phenomenon of the sample at different positions in the sample tube 301 due to the difference in flow rate. This ensures the uniformity of the sample composition and improves the accuracy of subsequent sample analysis.

[0034] When multiple conical plates 701 rotate to form a conical cylinder, the rotation of the multiple conical plates 701 will compress the lifting ring 705. After being compressed, the lifting ring 705 will stretch multiple tension springs and slide downwards. When the sample inside the sample tube 301 is discharged, the outer wall of the base 502 will be compressed by the triangular elastic plate 601. After being compressed, the multiple triangular elastic plates 601 will push the connecting plate 602 downwards. Then, when the bottom of the connecting plate 603 contacts the bottom inside of the sample tube 301, the multiple conical plates 701 will... The lowering ring 705 is reset, and at this time, the multiple conical plates 701 between the connecting plate 2 603 and the connecting plate 1 602 will also be reset. When the multiple conical plates 701 are reset, the lifting ring 2 705 will slide upward and reset under the tension of multiple tension springs at the top. Since the sample has a certain degree of adhesion, when the lifting ring 2 705 resets upward, it will scrape off the sample adhering to the inner wall of the flexible layer 604, reducing the situation where the sample remains inside the sample tube 301 when it is discharged. At the same time, it can also reduce the impact of sample adhesion on the quality of the next sample aspiration, ensuring the accuracy of sample discharge.

[0035] When the extraction rod 401 drives the fixed plate 403 to slide downwards, the downward movement of the fixed plate 403 will squeeze the lifting ring 305. Subsequently, as the fixed plate 403 continues to slide downwards, the fixed tube 801 will push the spring plate inside the fixed plate 403 through the connecting groove at the bottom of the fixed plate 403 and enter the interior of the connecting groove. Then, as the fixed plate 403 slides downwards, it will drive multiple obtuse-angled plates 503 to slide downwards through the top plate 501. When the multiple obtuse-angled plates 503 slide downwards and are squeezed by the protruding ring 302, the multiple obtuse-angled plates 503 will push the top plate 501 downwards under the pressure of the protruding ring 302. Subsequently, as the top plate 501 slides downwards, it will push the spring plate 305 into the interior of the fixed cylinder 404. The gas is compressed, and the one-way ball 405 is in a closed state. Then, the gas inside the fixed cylinder 404 is compressed by the top plate 501 and enters the connecting groove through the connecting pipe 804. It enters the inner wall of the gas outlet plate 803 through the air inlet on the upper surface of the fixed pipe 801 and blows it onto the inner wall of the inner cylinder 303. When the gas blows onto the inner wall of the inner cylinder 303, the sample can slide down through the bottom inner wall of the sample tube 301 and be discharged under the blowing of the gas. This can reduce the situation of sample residue inside the sample tube 301 when the sample is discharged, thereby further enhancing the accuracy of sample discharge and improving the accuracy of subsequent detection.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A glyoxal sampling device, comprising a main body (1), wherein a placement frame (101) is fixedly connected to the top of the main body (1), a sample storage plate (102) is fixedly connected to the side of the main body (1) near the placement frame (101), a fixing frame (103) is fixedly connected to the side of the main body (1) near the sample storage plate (102), and an electric push rod (104) is fixedly connected to the bottom inner wall of the fixing frame (103), characterized in that, Also includes; The transmission mechanism (2) includes a motor (201) fixedly connected to the output end of the electric push rod (104), and a support frame (202) rotatably connected to the output end of the motor (201). The side wall of the support frame (202) is fixedly connected to the electric push rod (203). The sampling mechanism (3) includes a sample tube (301) fixedly connected to the end of the support frame (202) away from the motor (201). A protruding ring (302) is fixedly connected inside the sample tube (301). An inner cylinder (303) is fixedly connected inside the bottom of the protruding ring (302). A plurality of spring rods (304) are fixedly connected to the bottom inner wall of the sample tube (301). A lifting ring (305) is fixedly connected to the top of the plurality of spring rods (304).

2. The glyoxal sampling device according to claim 1, characterized in that: The sample tube (301) is provided with an aspiration mechanism (4). The aspiration mechanism (4) includes an extraction rod (401) that is slidably connected inside the sample tube (301). The top of the extraction rod (401) extends through to the top outer wall of the sample tube (301) and is fixedly connected to the output end of the electric push rod (203). Several guide plates (402) are fixedly connected to the outer surface of the extraction rod (401) inside the sample tube (301).

3. The glyoxal sampling device according to claim 2, characterized in that: The bottom of the extraction rod (401) is fixedly connected to a fixed plate (403), and the top of the fixed plate (403) is fixedly connected to a fixed cylinder (404). The bottom of the fixed cylinder (404) is provided with several round holes, the bottom of the round holes penetrates to the bottom inner wall of the fixed plate (403), and the top inner wall of the round holes is fixedly connected to a one-way ball (405).

4. The glyoxal sampling device according to claim 3, characterized in that: The outer surface of the extraction rod (401) is provided with a sliding mechanism (5). The sliding mechanism (5) includes a top plate (501) slidably connected inside the fixed cylinder (404). Several long rods are fixedly connected to the bottom of the extraction rod (401). One end of the long rod away from the top plate (501) passes through the bottom outer wall of the fixed plate (403) and extends to the outside. The extended ends of the several long rods are fixedly connected to a base plate (502). A return spring is slidably connected to the outer surface of the long rod inside the fixed cylinder (404). The top of the return spring is fixedly connected to the top plate (501).

5. The glyoxal sampling device according to claim 4, characterized in that: The bottom of the reset spring is fixedly connected to the top outer wall of the fixed plate (403). Several obtuse angle plates (503) are fixedly connected to the top of the top plate (501). The end of the obtuse angle plate (503) away from the top plate (501) is rotatably connected to the side wall of the guide plate (402). Several connecting grooves are opened inside the fixed plate (403). The bottom of the connecting groove extends through to the bottom outer wall of the fixed plate (403). A spring plate is fixedly connected to the top inner wall of the connecting groove.

6. The glyoxal sampling device according to claim 5, characterized in that: The sample tube (301) is provided with an auxiliary mechanism (6). The auxiliary mechanism (6) includes several triangular elastic plates (601) fixedly connected to the inner wall of the inner cylinder (303). The bottom of the several triangular elastic plates (601) is rotatably connected to a connecting plate one (602). The bottom of the connecting plate one (602) is rotatably connected to a connecting plate two (603). The top of the connecting plate one (602) is provided with several round holes two. The bottom of the several round holes two penetrates to the bottom of the connecting plate two (603). The bottom of the connecting plate one (602) is fixedly connected to several flexible layers (604). The bottom of the flexible layers (604) is fixedly connected to the top of the connecting plate two (603). The bottom of the connecting plate one (602) is fixedly connected to a reset spring two. The bottom of the reset spring two is fixedly connected to the top of the connecting plate two (603).

7. The glyoxal sampling device according to claim 6, characterized in that: The sample tube (301) is internally provided with a rotating mechanism (7). The rotating mechanism (7) includes a conical plate (701) rotatably connected to the bottom of the connecting disk two (603). Several conical plates (701) are arranged in a group of four, arranged in a circular array with the center of the circular hole two as the center. An inclined plate (702) is fixedly connected to the side of the conical plate (701) away from the flexible layer (604). An intermediate plate (703) is rotatably connected to the end of the inclined plate (702) away from the conical plate (701). Several intermediate plates (703) are located away from the inclined plate. One end of (702) is rotatably connected to the bottom outer wall of the connecting plate (602). The top of the four conical plates (701) is provided with a fixing ring (704). The outer surface of the fixing ring (704) is fixedly connected to the inner wall of the circular hole II on the connecting plate (602). The bottom of the fixing ring (704) is fixedly connected with several tension springs. The end of the several tension springs away from the fixing ring (704) is fixedly connected with a lifting ring II (705). The outer surface of the lifting ring II (705) is in contact with the side wall of the flexible layer (604).

8. The glyoxal sampling device according to claim 7, characterized in that: The sample tube (301) is equipped with a cleaning mechanism (8). The cleaning mechanism (8) includes several fixed tubes (801) fixedly connected to the inner wall of the sample tube (301) located outside the inner cylinder (303). The top of the fixed tube (801) extends through the top outer wall of the lifting ring (305) and outwards. Several air inlets are opened on the outer surface of the fixed tube (801) located outside the lifting ring (305). A one-way tube (802) is fixedly connected to the bottom of the fixed tube (801). The end of the one-way tube (802) away from the fixed tube (801) passes through... The one-way pipe (802) extends to the outer wall of the inner cylinder (303) and to the outside. The extension end of the one-way pipe (802) is fixedly connected to the air outlet plate (803). The air outlet plate (803) and the one-way pipe (802) are connected in a communication manner. The top of the fixed pipe (801) is provided with a connecting pipe (804). The end of the connecting pipe (804) near the fixed cylinder (404) passes through the inner wall of the fixed cylinder (404). The end of the connecting pipe (804) away from the fixed cylinder (404) passes through the interior of the connecting groove. The connecting groove is connected to the interior of the fixed cylinder (404) through the connecting pipe (804).

9. A method of using a glyoxal sampling device, characterized in that: The method using the glyoxal sampling device as described in claim 8 includes the following steps: S1: Place the sample and sampling bottle; S2: Rotate to adjust position; S3: Moving suction and discharge.

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