In-situ detector

Abstract

The invention discloses an in-situ detector, and relates to the technical field of detection equipment. The device comprises a detector assembly which comprises a base, the base is fixedly connected with a transverse rail, the transverse rail is provided with an L-shaped objective table, and one side of the base is provided with an imaging mechanism which is horizontally opposite to the L-shaped objective table; the in-situ pool is vertically connected to one side of the L-shaped objective table and is opposite to the imaging mechanism, an exhaust hole is formed in the top of the in-situ pool, and a liquid through hole is formed in the bottom of the in-situ pool; and the sealing liquid discharging assembly comprises a negative pressure air suction bottle detachably installed on the L-shaped objective table, and the negative pressure air suction bottle is detachably connected with a liquid discharging pipeline communicated with the in-situ pool liquid passing hole. The in-situ tank is arranged on the L-shaped objective table, and the reaction in the in-situ tank is observed through the imaging device on the horizontal side, so that the situation that the observation is influenced by bubble floating can be effectively avoided, and the observation effect is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and specifically relates to an in-situ detector. Background Art

[0002] An in-situ detector is a sample detection device. In the traditional electrochemical in-situ detection process, a flat Raman in-situ cell is often used for electrolysis dynamic observation. The following problems exist when using the existing in-situ detector: The in-situ cell is horizontally placed, and the microscope is arranged on the upper side of the in-situ cell. During the observation process, bubbles are electrolytically generated in the in-situ cell, and the bubbles float up to the light-transmitting sheet, which will affect the observation effect.

[0003] The traditional in-situ cell has a risk of waste gas leakage. The in-situ cell is in a closed state during observation, and the waste gas generated during the reaction will cause the pressure in the in-situ cell to increase, which may affect the sealing performance of the light-transmitting sheet, resulting in the risk of gas or liquid leakage.

[0004] When the in-situ detector performs batch detection on the same sample to ensure the detection accuracy, after each detection is completed, the in-situ cell needs to be disassembled, and then the in-situ cell is opened to drain the reacted liquid therein, and new liquid is re-injected. This operation is extremely troublesome, takes a lot of time, and a large amount of waste gas will escape when taking out the liquid, and the safety is not good.

[0005] Therefore, the present invention proposes an in-situ detector. Summary of the Invention

[0006] The purpose of the present invention is: to solve the problems in the above background art, the present invention provides an in-situ detector.

[0007] The present invention specifically adopts the following technical solutions to achieve the above purpose: An in-situ detector, comprising: A detector assembly, including a base, a cross rail fixedly connected to the base, an L-shaped carrier mounted on the cross rail, and an imaging mechanism mounted on one side of the base and horizontally opposite to the L-shaped carrier; An in-situ cell, vertically connected to one side of the L-shaped carrier and opposite to the imaging mechanism, the top of the in-situ cell is provided with an exhaust hole and the bottom is provided with a liquid through hole; A sealed liquid discharge assembly, including a negative pressure suction bottle detachably mounted on the L-shaped carrier, and a liquid discharge pipe detachably connected to the negative pressure suction bottle and communicating with the liquid through hole of the in-situ cell; A pressure balance sealing valve, including a plunger block inserted into the exhaust hole of the in-situ cell, a perforation communicating with the exhaust hole is formed on the plunger block, and a balloon is sleeved on the plunger block and communicates with the perforation.

[0008] Further, the L-shaped carrier table includes a bearing plate slidably installed in the horizontal rail. One end of the bearing plate is vertically connected with a lifting plate. A chute is vertically formed on the lifting plate, and a light-transmitting hole is formed in the chute. The bottom of the lifting plate is slidably sleeved with a U-shaped plate with one end inserted into the chute. One side of the U-shaped plate is connected with a support seat for installing the in-situ cell, and the other side of the U-shaped plate is connected with a supplementary light. The supplementary light and the in-situ cell are oppositely arranged at the light-transmitting hole.

[0009] Further, the in-situ cell includes a rectangular box body. A liquid storage cavity horizontally penetrates through the middle of the rectangular box body. Two light-transmitting sheets for closing the liquid storage cavity are detachably connected to the rectangular box body by bolts. The number of liquid through holes is two and they are formed at the bottom of the rectangular box body. The exhaust hole is formed at the top of the rectangular box body and is communicated with the upper end of the liquid storage cavity. The liquid through hole is formed at the bottom of the rectangular box body and is communicated with the bottom end of the liquid storage cavity. The horizontal ends of the rectangular box body are connected with electrode rods inserted into the liquid storage cavity.

[0010] Further, the support seat includes a seat plate formed on the side surface of the U-shaped plate. A groove is formed at the upper end of the seat plate. Clamping rods horizontally penetrate through both ends of the seat plate. A resisting spring is connected between the middle of the clamping rod and the seat plate. Lever pieces are hinged at both ends of the seat plate. The lever pieces are movably sleeved on the ends of the clamping rods. A stop block is formed at the end of the clamping rod.

[0011] Further, two connecting pipes penetrating through the seat plate are formed in the groove. The upper ends of the connecting pipes are inserted into the rectangular box body and four mutually fitting sector-shaped elastic pieces are connected at the openings. The lower ends of the connecting pipes are detachably communicated with the drain pipe.

[0012] Further, a circular groove is formed on the bearing plate. The negative pressure suction bottle includes a piston liquid storage bottle inserted into the circular groove. A ring frame is detachably sleeved on the piston liquid storage bottle. An installation cover is threadedly connected to the upper end of the ring frame. An air extraction part is installed on the installation cover. A vertical pipe communicating with the inside of the piston liquid storage bottle is formed through the installation cover. The vertical pipe is communicated with the drain pipe.

[0013] Further, the piston liquid storage bottle includes a bottle body. A support ring is formed at the bottom edge of the bottle body and a retaining ring is formed at the top. An outflow port is formed at the bottom of the bottle body. A sealing plug is inserted into the outflow port. A piston block is vertically slidably installed in the bottle body. A suspension frame is fixedly connected to the inner bottom of the bottle body. A column pipe fixedly connected to the suspension frame and slidably penetrating through the piston block and detachably communicated with the vertical pipe is provided.

[0014] Further, the drain pipe includes a confluence pipe sleeved on the vertical pipe. The top of the confluence pipe is communicated with two transparent hoses through a one-way valve member. The other ends of the two transparent hoses movably penetrate through the lifting plate and are sleeved with the connecting pipes.

[0015] Furthermore, the one-way valve member includes a spherical cover constructed on the top of the manifold pipe. The transparent hose is connected to both sides of the spherical cover. A partition plate is constructed in the middle of the spherical cover. Support springs are connected to both sides of the partition plate, and the ends of the support springs are connected to sealing blocks that abut against the connection points of the transparent hoses.

[0016] Furthermore, the air extraction member includes a cylinder tube penetrating through the mounting cover. A net plate is constructed at the bottom of the cylinder tube. A return spring is fixedly connected to the net plate. The upper end of the return spring is connected to a rubber bowl slidably installed in the cylinder tube. A pressing rod fixedly connected to the rubber bowl movably penetrates through the upper end of the cylinder tube.

[0017] The beneficial effects of the present invention are as follows: By vertically arranging the in-situ cell on the L-shaped carrier platform and observing the reaction in the in-situ cell through the imaging device on the horizontal side, the present invention can effectively avoid the situation where the floating of bubbles affects the observation and ensure the observation effect.

[0018] A pressure balance sealing valve is connected to the in-situ cell of the present invention, which can compensate for the pressure change in real time through the balloon in it, avoid the leakage of gas or liquid in the in-situ cell due to excessive pressure, and increase the safety.

[0019] By setting a negative pressure suction bottle, the present invention can perform closed drainage on the in-situ cell, reduce the leakage of waste gas, and add subsequent samples without disassembling the in-situ cell, so as to continue the detection, which increases the convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the three-dimensional structure diagram of the present invention; Figure 2 is the three-dimensional structure diagram of another perspective of the present invention; Figure 3 is the three-dimensional structure diagram of the L-shaped carrier platform of the present invention; Figure 4 is the present invention Figure 3 semi-sectional view of the three-dimensional structure; Figure 5 is the present invention Figure 4 enlarged view at B in; Figure 6 is the three-dimensional structure diagram of the in-situ cell and the support seat of the present invention; Figure 7 is the present invention Figure 6 partial sectional view of the three-dimensional structure; Figure 8 is the present invention Figure 6 another partial sectional view of the three-dimensional structure; Figure 9 is the present invention Figure 8 enlarged view at A in; Figure 10 is the three-dimensional structure diagram of the negative-pressure suction bottle of the present invention; Figure 11 is the partial cross-sectional view of the three-dimensional structure in the present invention 10; Reference numerals: 1, detector assembly; 101, base; 102, horizontal rail; 103, L-shaped carrier; 1031, bearing plate; 10311, circular groove; 1032, lifting plate; 1033, sliding groove; 1034, light-transmitting hole; 1035, U-shaped plate; 1036, support seat; 10361, seat plate; 10362, groove; 10363, clamping rod; 10364, abutment spring; 10365, lever piece; 10366, stopper; 1037, supplementary light; 104, imaging mechanism; 2, in-situ cell; 201, exhaust hole; 202, liquid passage hole; 203, rectangular box; 204, liquid storage cavity; 205, light-transmitting sheet; 206, electrode rod; 3, sealed liquid discharge assembly; 301, negative-pressure suction bottle; 3011, piston liquid storage bottle; 30111, bottle body; 30112, support ring; 30113, retaining ring; 30114, outflow port; 30115, sealing plug; 30116, piston block; 30117, suspension frame; 30118, column tube; 3012, ring frame; 3013, mounting cover; 3014, vertical tube; 302, liquid discharge pipeline; 3021, confluence pipe; 3022, one-way valve member; 30221, spherical cover; 30222, spacer; 30223, support spring; 30224, sealing block; 3023, transparent hose; 4, pressure balance sealing valve; 401, plunger block; 402, perforation; 403, balloon; 5, connecting pipe; 6, sector spring piece; 7, air extraction member; 701, cylinder; 702, mesh plate; 703, return spring; 704, rubber bowl; 705, pressing rod. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] As Figures 1 - 3 and Figures 6 - 8 shown, an in-situ detector proposed in an embodiment of the present invention includes: The detector assembly 1 includes a base 101. A horizontal rail 102 is fixedly connected to the base 101. An L-shaped carrier 103 is installed on the horizontal rail 102. An imaging mechanism 104 is installed on one side of the base 101 and is arranged horizontally opposite to the L-shaped carrier 103. The imaging mechanism 104 adopts a camera microscope structure. The detector assembly 1 is based on the base 101. The horizontal rail 102 is connected above the base 101, and the L-shaped carrier 103 is slidably installed thereon. The L-shaped carrier 103 is adjusted through the cooperation of a coarse focusing screw, a fine focusing screw, and a rack and pinion. This is a known technology in the art. By rotating the coarse focusing screw and the fine focusing screw, the position of the L-shaped carrier 103 in the horizontal direction is adjusted. When the sample carried on the L-shaped carrier 103 is moved to a suitable position, the imaging mechanism 104 can timely capture the image information of the sample, providing a visual basis for subsequent analysis; The in-situ cell 2 is vertically connected to one side of the L-shaped carrier 103 and is arranged opposite to the imaging mechanism 104. An exhaust hole 201 is formed at the top of the in-situ cell 2, and a liquid through-hole 202 is formed at the bottom. The in-situ cell 2 is mainly used to carry the sample and is connected to an external power supply to realize the electrolysis operation of the sample, so as to facilitate the imaging mechanism 104 to capture the reaction information. The exhaust hole 201 at the top of the in-situ cell 2 can not only be used for exhausting but also as a liquid injection port. The sample liquid can be injected into the in-situ cell 2 through a syringe. The liquid through-hole 202 at the bottom is used to discharge the liquid after the reaction. The in-situ cell 2 is installed on the L-shaped carrier 103 and is vertically arranged horizontally opposite to the imaging mechanism 104. This can ensure that the bubbles generated by the liquid reaction in the in-situ cell 2 float upward and are discharged from the exhaust hole 201, without accumulating on the observation surface of the in-situ cell 2, ensuring imaging clarity; The sealed liquid discharge assembly 3 includes a negative pressure suction bottle 301 detachably installed on the L-shaped carrier 103. A liquid discharge pipe 302 detachably connected to the negative pressure suction bottle 301 is communicated with the liquid through-hole 202 of the in-situ cell 2. Through the liquid discharge pipe 302, the negative pressure suction bottle 301 can be communicated with the liquid through-hole 202 at the bottom of the in-situ cell 2, realizing a closed liquid discharge operation. The liquid in the in-situ cell 2 can be directly extracted by the negative pressure suction bottle 301 without disassembling the in-situ cell 2. After the liquid is discharged, a new sample can be directly injected from the exhaust hole 201, greatly improving the detection efficiency of the same sample batch, increasing the convenience of the device. At the same time, the closed liquid discharge can also reduce the escape of waste gas, ensuring safety; The pressure balance sealing valve 4 includes a plunger block 401 inserted and installed in the exhaust hole 201 of the in-situ cell 2. A perforation 402 communicating with the exhaust hole 201 is formed on the plunger block 401. A balloon 403 communicating with the perforation 402 is sleeved on the plunger block 401. It is connected to the exhaust hole 201 and can collect the gas generated during the electrolysis reaction of the liquid in the in-situ cell 2, avoiding the imbalance of the internal pressure of the in-situ cell 2 and thus preventing the leakage of gas or liquid, increasing safety. At the same time, it can prevent bubbles from accumulating in the in-situ cell 2 and affecting the observation, improving the observation effect.

[0023] As Figures 3 - 4 shown, the specific structure of the L-shaped stage 103 of the present invention is disclosed to ensure imaging clarity. The L-shaped stage 103 includes a carrier plate 1031 slidably installed in the horizontal rail 102. One end of the carrier plate 1031 is vertically connected with a lifting plate 1032. It should be noted that the lifting plate 1032 includes a fixed plate fixedly connected to the carrier plate 1031. A moving plate is slidably connected to the fixed plate, and the lifting function is realized through a lead screw and nut structure. Specifically, it includes a lead screw rotatably installed on the fixed plate. The lead screw threadedly penetrates the upper end of the moving plate. A chute 1033 is vertically formed on the lifting plate 1032. The chute 1033 is formed on the moving plate, and a light-transmitting hole 1034 is formed in the chute 1033. The bottom of the lifting plate 1032 is slidably sleeved with a U-shaped plate 1035 with one end inserted into the chute 1033. One side of the U-shaped plate 1035 is connected with a support seat 1036 for installing the in-situ cell 2. The other side of the U-shaped plate 1035 is connected with a supplementary light 1037. The supplementary light 1037 and the in-situ cell 2 are oppositely arranged at the light-transmitting hole 1034. The sliding function between the U-shaped plate 1035 and the moving plate is also realized through a lead screw and nut structure. Specifically, it includes a lead screw rotatably installed on the upper end of the U-shaped plate 1035. The lead screw threadedly penetrates the upper end of the moving plate. When the lead screw on the fixed plate is rotated, the moving plate moves up and down relative to the fixed plate. When the lead screw on the U-shaped plate 1035 is rotated, the U-shaped plate 1035 moves up and down relative to the moving plate. The two lifting structures are used in combination, which can more precisely adjust the height of the support seat 1036 and increase the flexibility of the device. The supplementary light 1037 connected to the U-shaped plate 1035 is oppositely arranged with the in-situ cell 2 on the support seat 1036, which can provide supplementary light for the in-situ cell 2 to improve the clarity of the image captured by the imaging mechanism 104.

[0024] As Figure 6 and Figure 8As shown, the specific structure of the in-situ cell 2 of the present invention is disclosed, which meets the requirements of horizontal imaging. The in-situ cell 2 includes a rectangular box body 203. A liquid storage cavity 204 horizontally penetrates through the middle of the rectangular box body 203. Two light-transmitting sheets 205 for closing the liquid storage cavity 204 are detachably connected to the rectangular box body 203 by bolts. The number of liquid through holes 202 is two and they are formed at the bottom of the rectangular box body 203. An exhaust hole 201 is formed at the top of the rectangular box body 203 and is connected to the upper end of the liquid storage cavity 204. The liquid through holes 202 are formed at the bottom of the rectangular box body 203 and are connected to the bottom end of the liquid storage cavity 204. The rectangular box body 203 is horizontally connected to both ends with electrode rods 206 inserted into the liquid storage cavity 204. The power connection ends of the electrode rods 206 are arranged towards the outside of the rectangular box body 203 and are electrically connected to the power connection wires, while the discharge ends are arranged towards the inside of the liquid storage cavity 204 for ionizing the solution. A rectangular through-shaped liquid storage cavity 204 is formed inside the rectangular box body 203, and the light-transmitting sheets 205 cover both ends of the liquid storage cavity 204. On the one hand, they are used to close the liquid storage cavity 204, and on the other hand, they also facilitate revealing the situation inside the liquid storage cavity 204 for the imaging mechanism 104 to capture. Two liquid through holes 202 are provided to avoid blockage of a single liquid through hole 202, ensure smooth liquid drainage, and improve fault tolerance.

[0025] As Figures 6 - 8As shown in the figure, the specific structure of the support base 1036 of the present invention is disclosed, which realizes the positioning and clamping of the in-situ cell 2 and ensures the stability of the observation. The support base 1036 includes a seat plate 10361 constructed on the side of the U-shaped plate 1035. A groove 10362 is constructed at the upper end of the seat plate 10361. Clamping rods 10363 slide through both ends of the seat plate 10361 horizontally. A resisting spring 10364 is connected between the middle of the clamping rod 10363 and the seat plate 10361. Lever pieces 10365 are hinged at both ends of the seat plate 10361. The middle of the lever piece 10365 is hinged to the seat plate 10361 and can perform a lever flipping motion. The lever piece 10365 is movably sleeved on the end of the clamping rod 10363. A stop block 10366 is constructed at the end of the clamping rod 10363. A hole is constructed at the end of the lever piece 10365 for the movable insertion of the clamping rod 10363. The stop block 10366 is used to prevent the clamping rod 10363 from detaching from the lever piece 10365. The clamping rod 10363 is always pushed by the resisting spring 10364 under normal conditions, specifically with a tendency to move towards the inside of the groove 10362, and its end protrudes into the groove 10362. When installing the in-situ cell 2, it is necessary to press one end of the two lever pieces 10365 first, so that the other end flips and drives the clamping rod 10363 away from the groove 10362, so as to facilitate the insertion of the in-situ cell 2 into the groove 10362. At this time, release the hand, and the resisting spring 10364 can push the clamping rod 10363 to abut against the side of the in-situ cell 2, realizing the positioning and clamping operation of the in-situ cell 2. Compared with the traditional placement structure, the position of the in-situ cell 2 is more stable after clamping, avoiding displacement caused by vibration during the reaction and ensuring the detection accuracy.

[0026] As Figures 8 - 9 shown in the figure, the structure of the connecting pipe 5 of the present invention is disclosed, which is used to communicate with the in-situ cell 2. Two connecting pipes 5 penetrating the seat plate 10361 are constructed in the groove 10362. The upper end of the connecting pipe 5 is inserted into the rectangular box body 203 and four mutually fitting sector-shaped elastic pieces 6 are connected at the opening. The sector-shaped elastic piece 6 is located at the end of the connecting pipe 5. Under normal pressure, the four sector-shaped elastic pieces 6 fit together to form a circular sealing piece, avoiding liquid from flowing into the connecting pipe 5 and ensuring the normal progress of the liquid reaction in the in-situ cell 2 and avoiding liquid leakage during the reaction. Only when performing negative pressure extraction of waste liquid, the pressure change in the in-situ cell 2 will squeeze the sector-shaped elastic piece 6 to undergo elastic flipping, so that the waste liquid can quickly cross the sector-shaped elastic piece 6 and enter the connecting pipe 5 and the drain pipe 302. The lower end of the connecting pipe 5 is detachably communicated with the drain pipe 302. The connecting pipe 5 is divided into an upper half section and a lower half section. The upper half section is used to be inserted into the liquid passing hole 202 in the rectangular box body 203. On the one hand, it can realize positioning, and on the other hand, it can communicate with the liquid storage cavity 204 to facilitate the drainage operation. The lower half section is used to be sleeved and connected with the drain pipe 302 to facilitate the detachment and replacement of the drain pipe 302 and increase the convenience of the device.

[0027] As Figures 4 - 5 and Figures 10 - 11 shown, the structural composition of the negative pressure suction bottle 301 of the present invention is disclosed. A circular groove 10311 is formed on the bearing plate 1031. The negative pressure suction bottle 301 includes a piston liquid storage bottle 3011 inserted in the circular groove 10311. A ring frame 3012 is detachably sleeved on the piston liquid storage bottle 3011. An installation cover 3013 is threadedly connected to the upper end of the ring frame 3012. An air extraction member 7 is installed on the installation cover 3013. A vertical pipe 3014 communicating with the inside of the piston liquid storage bottle 3011 is formed through the installation cover 3013. The vertical pipe 3014 is communicated with the liquid discharge pipe 302. It should be noted that the piston liquid storage bottle 3011 in the negative pressure suction bottle 301 is mainly used to store waste liquid, avoid the overflow of waste liquid and waste gas, and ensure the sealing performance. The air extraction member 7 is used to extract the gas in the ring frame 3012, reduce the pressure in the piston liquid storage bottle 3011, and facilitate the extraction of waste liquid through the liquid discharge pipe 302. The whole negative pressure suction bottle 301 is in a closed state, reducing the leakage of waste gas. When it is necessary to process and collect the waste liquid, only need to pull out the ring frame 3012 from the piston liquid storage bottle 3011, and the piston liquid storage bottle 3011 can be replaced. The disassembly is convenient and fast, improving the efficiency.

[0028] As Figure 5 and Figure 11As shown in the figure, the specific structure of the piston liquid storage bottle 3011 of the present invention is disclosed, which is used to ensure the sealing performance and prevent gas leakage. The piston liquid storage bottle 3011 includes a bottle body 30111. A support ring 30112 is constructed at the bottom edge of the bottle body 30111 and a retaining ring 30113 is constructed at the top. An outlet 30114 is constructed at the bottom of the bottle body 30111, and a sealing plug 30115 is inserted into the outlet 30114. The retaining ring 30113 is provided to suspend the outlet 30114 at the bottom of the bottle body 30111, avoiding extrusion of the sealing plug 30115 and ensuring the sealing performance. A piston block 30116 is slidably installed vertically in the bottle body 30111. A suspension frame 30117 is fixedly connected to the inner bottom of the bottle body 30111. A column pipe 30118 is fixedly connected to the suspension frame 30117, which slidably penetrates through the piston block 30116 and is detachably communicated with a vertical pipe 3014. The column pipe 30118 is sleeved and communicated with the vertical pipe 3014 on the mounting cover 3013, so that the waste liquid pumped out by the drainage pipe 302 can be directly injected under the piston block 30116. When it is necessary to pump out the waste liquid in the in-situ pool 2, only need to extract the gas in the ring frame 3012 through the air extraction member 7. At this time, negative pressure is generated in the ring frame 3012, which drives the piston block 30116 to move upward. After the piston block 30116 moves upward, negative pressure is generated in the bottle body 30111, so as to pump the waste liquid in the in-situ pool 2 into the bottle body 30111 through the drainage pipe 302. At this time, the piston block 30116 separates the air extraction member 7 from the bottom space of the bottle body 30111, avoiding the leakage of waste gas, increasing safety, and the negative pressure suction is cleaner than the automatic outflow.

[0029] As Figure 4 and Figure 11 shown in the figure, the structure of the drainage pipe 302 of the present invention is disclosed, which is convenient for observing the internal drainage situation and ensuring complete drainage. The drainage pipe 302 includes a confluence pipe 3021 sleeved on the vertical pipe 3014. The top of the confluence pipe 3021 is communicated with two transparent hoses 3023 through a one-way valve member 3022. The transparent hoses 3023 are provided on the one hand so that they do not affect the movement of the lifting plate 1032, and on the other hand, the internal drainage situation can be observed at all times. The other ends of the two transparent hoses 3023 movably penetrate through the lifting plate 1032 and are sleeved with the connecting pipe 5. It should be noted that by setting the one-way valve member 3022, liquid backflow can be avoided, ensuring that the waste liquid can quickly flow into the bottle body 30111 after negative pressure extraction and ensuring complete drainage of the waste liquid in the transparent hose 3023.

[0030] As Figure 11As shown in the figure, the specific structure of the one-way valve member 3022 of the present invention is disclosed to prevent the backflow of waste liquid. The one-way valve member 3022 includes a spherical cover 30221 constructed on the top of the confluence pipe 3021. Transparent hoses 3023 are connected to both sides of the spherical cover 30221. A partition plate 30222 is constructed in the middle of the spherical cover 30221. Support springs 30223 are connected to both sides of the partition plate 30222. The end of the support spring 30223 is connected to a sealing block 30224 that abuts against the connection part of the transparent hose 3023. Under normal conditions, the support spring 30223 always abuts against the sealing block 30224 to block the transparent hose 3023. Only when negative pressure is extracted, the waste liquid will be squeezed into the spherical cover 30221 through the transparent hose 3023. At this time, the sealing block 30224 will be pushed open and enter the spherical cover 30221. Then the support spring 30223 will push the sealing block 30224 again to block it, so as to control its one-way flow and ensure the complete drainage of the transparent hose 3023. The spherical cover 30221 is also made of transparent material for easy observation by personnel.

[0031] As Figure 5 shown in the figure, the specific structure of the air extraction member 7 of the present invention is disclosed. The air extraction member 7 includes a cylinder 701 penetratingly constructed on the mounting cover 3013. A net plate 702 is constructed at the bottom of the cylinder 701. A return spring 703 is fixedly connected to the net plate 702. The upper end of the return spring 703 is connected to a rubber bowl 704 slidably installed in the cylinder 701. A pressure rod 705 fixedly connected to the rubber bowl 704 penetrates through the upper end of the cylinder 701. It should be noted that the air extraction member 7 can adopt various structures. One is a manual repeated pressing structure, that is, by repeatedly pressing the pressure rod 705, the rubber bowl 704 is driven to move up and down in the cylinder 701 in cooperation with the return spring 703. The opening of the rubber bowl 704 is upward. When the rubber bowl 704 moves downward, since the one-way valve member 3022 blocks the transparent hose 3023, the waste liquid cannot flow back, and the piston block 30116 cannot move downward. The rubber bowl 704 will deform inward due to the pressure, so that the gas in the ring frame 3012 flows out. Then the rubber bowl 704 moves upward through the support of the return spring 703. At this time, the edge of the rubber bowl 704 tightly abuts against the cylinder 701, and the gas in the ring frame 3012 will be extracted, so that the air pressure drives the piston block 30116 to move upward, so as to suck the waste liquid into the bottle body 30111. At this time, the pressure is balanced again, and the rubber bowl 704 moves downward again, repeating the above situation, deforming, and thus discharging the gas in the ring frame 3012. Repeating this cycle can quickly extract the waste liquid. The overall operation only requires repeated pressing, which is convenient to operate. The other is an electric suction pump. The suction pump is directly installed on the cylinder 701, and the suction function can be automatically realized by using electricity, saving manpower.

[0032] The foregoing 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 herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended 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. An in-situ detector, characterized in that: include: A detector assembly (1) comprises a base (101), the base (101) being fixedly connected to a cross rail (102), an L-shaped stage (103) being mounted on the cross rail (102), and an imaging mechanism (104) being mounted on one side of the base (101) and being arranged horizontally opposite to the L-shaped stage (103); An in-situ pool (2) vertically connected to one side of the L-shaped stage (103) and arranged opposite to the imaging mechanism (104), wherein the in-situ pool (2) is provided with an exhaust hole (201) at the top and a liquid passage hole (202) at the bottom; A sealed liquid discharge assembly (3), comprising a negative pressure suction bottle (301) mounted on the L-shaped stage (103), wherein the negative pressure suction bottle (301) is connected to a liquid discharge pipe (302) in communication with the liquid passage hole (202); The pressure-balanced sealing valve (4) comprises a plunger block (401) inserted into the exhaust hole (201), the plunger block (401) being provided with a through hole (402) connected to the exhaust hole (201), and the plunger block (401) being sleeved with a balloon bag (403) connected to the through hole (402).

2. The in-situ detector according to claim 1, characterized in that: The L-shaped loading platform (103) comprises a bearing plate (1031) slidably mounted in a transverse rail (102); one end of the bearing plate (1031) is vertically connected to a lifting plate (1032); a slide groove (1033) is vertically constructed on the lifting plate (1032); a light-transmitting hole (1034) is constructed in the slide groove (1033); a U-shaped plate (1035) is slidably sleeved at the bottom of the lifting plate (1032) and one end of which is inserted into the slide groove (1033); one side of the U-shaped plate (1035) is connected to a support seat (1036) for mounting an in-situ pool (2); the other side of the U-shaped plate (1035) is connected to a fill light (1037); the fill light (1037) and the in-situ pool (2) are arranged opposite to each other at the light-transmitting hole (1034).

3. The in-situ detector according to claim 1, characterized in that: The in-situ pool (2) comprises a rectangular box body (203), a liquid storage cavity (204) horizontally passing through the middle of the rectangular box body (203), two light-transmitting sheets (205) for sealing the liquid storage cavity (204) are detachably connected to the rectangular box body (203) by bolts, the liquid-passing holes (202) are two in number and are constructed at the bottom of the rectangular box body (203), the exhaust holes (201) are constructed at the top of the rectangular box body (203), and the rectangular box body (203) is horizontally connected to electrode rods (206) inserted into the liquid storage cavity (204) at both ends.

4. The in-situ detector according to claim 2, characterized in that: The support seat (1036) comprises a seat plate (10361) constructed on the side of the U-shaped plate (1035), the upper end of the seat plate (10361) is constructed with a groove (10362), the seat plate (10361) has a clamping rod (10363) slidingly penetrated horizontally at both ends, a resistance spring (10364) is connected between the middle part of the clamping rod (10363) and the seat plate (10361), and the two ends of the seat plate (10361) are hinged with a lever sheet (10365), the lever sheet (10365) is movably sleeved on the end of the clamping rod (10363), and the end of the clamping rod (10363) is constructed with a stopper (10366).

5. The in-situ detector according to claim 4, characterized in that: The groove (10362) is provided with two connecting tubes (5) penetrating the seat plate (10361); the upper ends of the connecting tubes (5) are inserted into the rectangular box body (203) and the openings are connected with four mutually fitting fan-shaped spring pieces (6); the lower ends of the connecting tubes (5) are detachably connected to the drainage pipe (302).

6. The in-situ detector according to claim 2, characterized in that: The bearing plate (1031) is provided with a circular groove (10311), the negative pressure suction bottle (301) comprises a piston liquid storage bottle (3011) inserted in the circular groove (10311), a ring frame (3012) is detachably sleeved on the piston liquid storage bottle (3011), a mounting cover (3013) is threadedly connected to the upper end of the ring frame (3012), a suction member (7) is mounted on the mounting cover (3013), a vertical pipe (3014) connected to the interior of the piston liquid storage bottle (3011) is penetrated through the mounting cover (3013), and the vertical pipe (3014) is connected to the liquid discharge pipe (302).

7. The in-situ detector according to claim 6, characterized in that: The piston liquid storage bottle (3011) comprises a bottle body (30111), the bottom edge of the bottle body (30111) is configured with a support ring (30112) and the top is configured with a retaining ring (30113), the bottom of the bottle body (30111) is configured with an outlet (30114), a sealing plug (30115) is inserted into the outlet (30114), a piston block (30116) is vertically slidably installed in the bottle body (30111), the bottom of the bottle body (30111) is fixedly connected to a suspension frame (30117), and the suspension frame (30117) is fixedly connected to a column tube (30118) that slides through the piston block (30116) and is detachably connected to the vertical tube (3014).

8. The in-situ detector according to claim 2, characterized in that: The liquid discharge pipeline (302) comprises a manifold (3021) sleeved on the vertical pipe (3014); the top of the manifold (3021) is connected to two transparent hoses (3023) via a one-way valve (3022); the other ends of the two transparent hoses (3023) movably penetrate the lifting plate (1032) and are sleeved on the connecting pipe (5).

9. The in-situ detector according to claim 8, characterized in that: The one-way valve component (3022) comprises a ball cover (30221) constructed on the top of the manifold (3021), the transparent hose (3023) is connected to both sides of the ball cover (30221), a partition plate (30222) is constructed in the middle of the ball cover (30221), both sides of the partition plate (30222) are connected to support springs (30223), and the ends of the support springs (30223) are connected to sealing blocks (30224) that abut against the connection point of the transparent hose (3023).

10. The in-situ detector according to claim 6, characterized in that: The vacuum element (7) comprises a column (701) which is penetrated by a structure on the mounting cover (3013); a mesh plate (702) is formed at the bottom of the column (701); a return spring (703) is fixedly connected to the mesh plate (702); the upper end of the return spring (703) is connected to a rubber bowl (704) which is slidably mounted in the column (701); and the rubber bowl (704) is fixedly connected to a pressure rod (705) which movably penetrates the upper end of the column (701).

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