Water quality oil sampler and method of use

Abstract

The present application relates to oil sampling technology field, disclose a kind of water quality oil sampler and its using method, including stand, electric telescopic rod, link module, sampling bottle, rubber base, a pair of pressing sheet and control switch, by vertical intercepting water column in sampling bottle inside, and with rubber base docking seal complete water sample collection, dual-state compensation trigger module includes a pair of link support plate and extension sleeve plate, the top of link support plate is hingedly arranged in the bottom of link module, the bottom of link support plate is hingedly arranged in the top of extension sleeve plate, the top of stand both sides is rotatably connected with arc plate, with link module downward water sample collection process extension sleeve plate is subjected to the action of outward extension, and further make arc plate in horizontal direction position symmetry switch, realize preheating and extrusion action dual switching;By transferring heat to rubber base restores its flexibility, compensate the hardening effect of low temperature on rubber, and the clearance filled by rubber thermal expansion characteristic extrusion oil film, strengthen sealing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil sampling, more particularly, it relates to a water quality oil sampler and a use method thereof. BACKGROUND

[0002] With the extensive use of oil, water surface oil pollution, especially waterway oil pollution, is becoming increasingly serious, and the demand for detection of oil pollutants in river water samples is increasing. The existing detection method generally collects water samples in the river channel through a sampler and then sends them to a laboratory for detection. During the oil pollution process, an oil film is formed on the water surface. At room temperature, the oil film is in a liquid state, so the sampler can be directly sent underwater for sampling.

[0003] After the rubber base is placed in the water with the support, its elasticity significantly decreases due to the low-temperature environment. When the sampling bottle is docked with the rubber base, it cannot be tightly attached as in the normal temperature state. During the subsequent storage and transportation of the water sample, a small gap may cause water leakage due to external forces such as shaking and jolting. When the temperature is low, an oil film with solid film properties is formed above the water surface due to low temperature. The sampling bottle contacts the oil film in the downward movement path, and the oil film adheres to the edge of the sampling bottle mouth, forming irregular protrusions. This causes the oil film to fill the sealing gap between the rubber base and the sampling bottle when the sampling bottle is docked with the rubber base, which cannot be tightly attached, resulting in a small gap that is not tightly sealed. During the subsequent storage and transportation of the water sample, water leakage occurs, affecting the integrity of the sample and the accuracy of the detection results. SUMMARY

[0004] The present application provides a water quality oil sampler and a use method thereof, which solves the technical problem of the docking sealing effect being affected by the condensation of the oil film on the sampling path and the decrease in the elasticity of the rubber base due to the low-temperature sampling environment in the related art.

[0005] The present application provides a water quality oil sampler and a use method thereof, which includes:

[0006] The stand, the electric telescopic rod, the connection module, the sampling bottle, the rubber base, a pair of pressing plates, and the control switch are used to vertically cut the water column inside the sampling bottle and dock and seal with the rubber base to complete water sample collection.

[0007] The dual-state compensation triggering module includes a pair of connection support plates and an extension sleeve plate. The top of the connection support plate is hingedly arranged at the bottom of the connection module, and the bottom of the connection support plate is hingedly arranged at the top of the extension sleeve plate. The top of the stand is rotatably connected with an arc-shaped plate on both sides. The extension sleeve plate is subjected to an outward extension force during the downward water sample collection process of the connection module, and further causes the arc-shaped plate to symmetrically switch in the horizontal direction, realizing the dual switching of preheating and extrusion.

[0008] The pre-treatment protection module includes a dynamic plate, and several fan-shaped plates are slidably connected around the inner wall of the dynamic plate. The dynamic plate switches in the same direction as the sampling path of the connecting module, triggering optimized processing of the bottle mouth treatment and receiving action.

[0009] As a further optimization of the present invention, the dual-state compensation trigger module further includes:

[0010] A pair of connecting racks are fixedly connected to the top of the two side extension sleeves respectively. A cavity is opened in the middle of both sides of the upright frame. The two side extension sleeves are slidably connected to the inner wall of the two side extension sleeves respectively.

[0011] As a further optimization of the present invention, the top two sides of the upright are fixedly connected to bearing seats, the middle of the bearing seats on both sides is rotatably connected to a transmission rod, the center of the outer wall of the transmission rod on both sides is fixedly connected to a transmission gear, the bottom of the transmission gear is meshed with the top of the connecting rack, and the middle of the outer wall of the transmission rod on both sides is fixedly connected to an arc plate.

[0012] As a further optimization of the present invention, a marking rod is slidably connected to the lower center of the connecting support plates on both sides, and a compensating spring is sleeved on the outer wall of the marking rod on both sides. One end of the compensating spring is fixedly connected to the marking rod, and the other end of the compensating spring is fixedly connected to the connecting support plate.

[0013] As a further optimization of the present invention, both sides of the top of the support frame are fixedly connected to infrared sensors, and the top of the inner walls on both sides are fixedly installed with infrared sensors. The infrared sensors are located in the middle of the rotation trajectory of the arc plate and are on the same straight line.

[0014] As a further optimization of the present invention, the pre-treatment protection module further includes:

[0015] Four sets of connecting plates are fixedly connected to the two ends of the outer wall of the two transmission rods respectively. Hollow frames are fixedly connected to the top four sides of the stand. Lifting columns are slidably connected to the inner walls of the four hollow frames. The end of the connecting plate away from the transmission rod is hinged to the middle of the bottom end of the lifting column.

[0016] As a further optimization of the present invention, the outer wall of the connecting plate is slidably connected to the middle of the hollow frame, the top of the four lifting columns is fixedly connected to the bottom of the dynamic plate, and a number of fan-shaped cavities are evenly opened around the inner wall of the dynamic plate, and the outer wall of the fan-shaped plate is slidably connected to the inner wall of the fan-shaped cavity.

[0017] As a further optimization of the present invention, a guide rod is fixedly connected to the top of each of the fan-shaped plates, and several rectangular grooves are evenly opened around the top of the dynamic plate. The outer wall of the guide rod is slidably connected to the inner wall of the rectangular groove. A connecting spring is provided on the inner wall of each of the four sides of the fan-shaped cavity. One end of the connecting spring is fixedly connected to the dynamic plate, and the other end of the connecting spring is fixedly connected to the guide rod.

[0018] As a further optimization of the present invention, the electric telescopic rod is fixedly installed in the middle of the frame, the drive end of the electric telescopic rod is fixedly connected to the top of the connecting module, the outer wall of the sampling bottle mouth is threadedly connected to the bottom of the connecting module, the rubber base is snapped onto the top of the frame, the pressure plates on both sides are rotatably connected to the top of the frame and cover the top of the outer wall of the rubber base, the control switch is fixedly installed on the top of the frame, and the control switch is electrically connected to the electric telescopic rod and the infrared sensor.

[0019] As a further optimization of the present invention, a method for using a water oil sampler, applied to a water oil sampler, includes the following steps:

[0020] Step 1: Place the rubber base on top of the stand and directly below the sampling bottle. Rotate the two pressure plates on both sides to cover the top of the outer wall of the rubber base and fix it. Then place the stand into the water sampling area and rotate the sampling bottle into the bottom of the connecting module. Drive the sampling bottle down along the outer wall of the stand by the electric telescopic rod, penetrate the liquid surface and intercept the water column inside the sampling bottle. During the continuous downward movement, it docks with the rubber base to seal the water sample.

[0021] Step 2: As the water sample collection path moves downward, the bottom of the connecting support plates on both sides, which are subjected to the downward force of the connecting module, expands outward, further driving the extension sleeve to move outward along the inner wall of the cavity. This horizontal displacement is transmitted to the transmission rod through the connecting rack and transmission gear to form a rotational transmission.

[0022] During the process of the electric telescopic rod driving the sampling bottle to move downward, the connecting plates on both sides rotate downward in the direction of the sampling bottle's movement under the rotation of the transmission rod, and with the cooperation of the hollow frame and the lifting column, the dynamic plate moves to the rubber base. During the downward movement and docking of the sampling bottle, the outer wall of the bottle mouth is pressed and contacted with the top of each fan-shaped plate, and the attached solidified oil film is peeled off.

[0023] As the sampling bottle and the rubber base are aligned, the two curved plates rotate from their original positions to the outer wall of the rubber base under the action of rotational transmission. After passing through the infrared rays emitted downward by the internal infrared sensor, the heating wire module inside the curved plate starts to operate. After the two curved plates switch to their positions, they transfer heat to the rubber base and the mouth of the sampling bottle, helping the rubber base to regain its elasticity and melting the solid oil film remaining at the mouth of the sampling bottle, eliminating any gaps when the two are aligned and ensuring the tightness of the connection.

[0024] Step 3: After the sampling bottle is connected to the rubber base, the water sample collection is sealed. Then, the pressure plates on both sides are rotated in the opposite direction to release the restriction on the rubber base. The electric telescopic rod drives the sampling bottle and the rubber base upward, passing through the central through hole of the dynamic plate and resetting. As the sampling bottle moves, the connecting module drives the two side extension plates to move towards the inner wall of the cavity through the connecting support plates on both sides. The connecting rack and transmission gear form a reverse transmission, which makes the dynamic plate move upward synchronously, supporting the sampling bottle and the rubber base containing the water sample below. During this process, the reverse transmission force also acts on the two side arc plates. When the collected water sample moves and resets with the electric telescopic rod, the two side arc plates pass through the interior of both sides again and interrupt the infrared line generated by the infrared sensor. The control switch triggers the heating wire in the arc plate to stop operating through the electrical signal. Finally, it rotates and moves to the initial position, contacts the marking rod, and the marking rod pops out through the compression compensation spring deformation. The water sample collection is completed.

[0025] Step 4: Rotate the sampling bottle in the opposite direction to separate it from the bottom of the connecting module, and tighten the sealing cap on the upper bottle opening. It can then be directly transported for the next step of water quality and oil analysis.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The water oil sampler of this invention, in conjunction with a sampling bottle, performs water sample collection by cutting a water column downwards. The connecting module generates downward squeezing force on the connecting support plates on both sides, and the bottom ends of the connecting support plates on both sides exert a pushing force on the extension sleeve plate to move outwards. This forms triangular support on both sides of the stand, ensuring the stability of the sampling process, and also converts the displacement of the sampling path into horizontal displacement. The synchronous water sample collection and sealing process triggers the arc-shaped block with an integrated heating wire inside to switch positions, transferring heat to the rubber base to restore its flexibility, compensating for the hardening effect of low temperature on the rubber, ensuring a tight seal, eliminating tiny gaps caused by insufficient elasticity, and preventing water sample leakage. Furthermore, during heating, the rubber base and the mouth of the sampling bottle are simultaneously heated and slightly expanded, using the thermal expansion characteristics of rubber to squeeze the gaps filled by the oil film. Even if there is residual oil film, the pressure generated by thermal expansion can squeeze out the oil film, strengthening the sealing effect and reducing the risk of leakage.

[0028] 2. The water oil sampler of this invention, after water sampling is completed, the sampling bottle and rubber base move upwards driven by the drive source to separate from the sampling water area. Correspondingly, the extension sleeve moves in the opposite direction of the original movement, triggering the reverse rotation of the arc plate. After the water sample is moved into place, the arc plate also rotates and resets to the initial position. During the rotation, it contacts the marker rod, generating a compressive force on the compensation spring and causing deformation. The marker rod pops out to the outside of the connecting support plate, indicating the end of the water sampling process. When the position of the heat-conducting arc block of the rubber base is rotated and switched again, the compressive force on the marker rod is eliminated, and under the action of the elastic potential energy accumulated by the deformation of the compensation spring, the marker rod resets and is stored inside the connecting support plate. This effectively avoids improper operation by the operator before sampling is completed, such as moving the sampler prematurely or disassembling the sampling bottle, ensuring the standardization of the sampling process and the accuracy of the sampling results, and preventing problems such as water sample leakage, pollution, or sampling failure due to misoperation.

[0029] 3. The water oil sampler of this invention involves alternating forward and reverse rotational forces during the water sample collection process. When the sampling bottle moves downward, the dynamic plate moves downward accordingly under the action of the forward rotational force. Before the sampling bottle docks with the rubber base, its mouth gradually presses against the fan-shaped plate of the dynamic plate, scraping away the solidified oil film layer by layer with continuous downward pressure. Then, the docking is sealed and the connection area is heat-conductingly treated to compensate for the temperature drop of the water sample caused by the low ambient temperature. This is suitable for detection methods that are sensitive to water sample temperature, avoiding subsequent detection errors caused by excessively low temperatures, slowing down the low-temperature stratification or crystallization of oily substances in the water sample, and ensuring the uniformity of water sample composition during detection. Correspondingly, when the water sample is transferred upward and reset, the sampling bottle and the rubber base pass through the through hole in the middle of the dynamic plate, and under the action of the reverse rotational force, they move synchronously a distance at the bottom of the sampling bottle to form bottom support protection. The heat conduction and temperature compensation mode and the physical protection mode can be switched according to the process requirements. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a water quality oil sampler proposed in this invention.

[0031] Figure 2 This is a bottom view schematic diagram of the overall structure of a water quality oil sampler proposed in this invention.

[0032] Figure 3 This is a side view schematic diagram of the overall structure of a water quality oil sampler proposed in this invention.

[0033] Figure 4 This is a top view schematic diagram of the overall structure of a water oil sampler proposed in this invention.

[0034] Figure 5This is a horizontal half-section diagram of the bottom two sides of the stand of a water quality oil sampler proposed in this invention.

[0035] Figure 6 This is a schematic diagram showing the docking state of the sampling bottle and the rubber base of a water oil sampler proposed in this invention.

[0036] Figure 7 This is a vertical half-section schematic diagram of the dynamic plate of a water quality oil sampler proposed in this invention.

[0037] Figure 8 for Figure 7 Enlarged diagram of point A in the middle.

[0038] Figure 9 This is a schematic vertical cross-sectional view of the frame of a water quality oil sampler proposed in this invention.

[0039] Figure 10 This is a horizontal cross-sectional schematic diagram of the dynamic plate of a water quality oil sampler proposed in this invention.

[0040] In the picture:

[0041] 1. Stand; 2. Electric telescopic rod; 3. Connecting module; 4. Sampling bottle; 5. Rubber base; 6. Pressing plate; 7. Control switch;

[0042] The dual-state compensation trigger module 8 includes:

[0043] 801. Connecting support plate; 802. Extension sleeve plate; 803. Cavity; 804. Connecting rack; 805. Transmission gear; 806. Shaft seat; 807. Transmission rod; 808. Arc plate; 809. Marking rod; 810. Vertical frame; 811. Infrared sensor; 812. Compensating spring.

[0044] Pre-treatment protection module 9 includes:

[0045] 901. Connecting plate; 902. Hollow frame; 903. Lifting column; 904. Dynamic plate; 905. Sector cavity; 906. Connecting spring; 907. Guide rod; 908. Sector plate. Detailed Implementation

[0046] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0047] likeFigures 1 to 10 As shown in the embodiment of the present invention, a water oil sampler includes:

[0048] The system consists of a support frame 1, an electric telescopic rod 2, a connecting module 3, a sampling bottle 4, a rubber base 5, a pair of pressure plates 6, and a control switch 7. It collects water samples by vertically cutting a water column into the sampling bottle 4 and sealing it with the rubber base 5.

[0049] The dual-state compensation trigger module 8 includes a pair of connecting support plates 801 and an extension sleeve plate 802. The top of the connecting support plate 801 is hinged to the bottom of the connecting module 3, and the bottom of the connecting support plate 801 is hinged to the top of the extension sleeve plate 802. Both sides of the top of the stand 1 are rotatably connected to arc plates 808. The arc plates 808 have heating wires integrated inside. As the connecting module 3 collects water samples downwards, the extension sleeve plate 802 is subjected to an outward extension force, which further enables the arc plates 808 to switch symmetrically in the horizontal direction, realizing the dual switching of preheating and squeezing action.

[0050] The pre-treatment protection module 9 includes a dynamic plate 904. The center of the dynamic plate 904 has a circular through hole with a diameter larger than that of the rubber base 5. Several fan-shaped plates 908 are slidably connected around the inner wall of the dynamic plate 904. All fan-shaped plates 908 are made of frosted material. The dynamic plate 904 switches in the same direction as the sampling path of the connecting module 3, triggering the optimization of bottle mouth treatment and receiving action.

[0051] The electric telescopic rod 2 is fixedly installed in the middle of the frame 1. The drive end of the electric telescopic rod 2 is fixedly connected to the top of the connecting module 3. The outer wall of the sampling bottle 4 is threadedly connected to the bottom of the connecting module 3. The rubber base 5 is snapped onto the top of the frame 1. The two pressure plates 6 on both sides are rotatably connected to the top of the frame 1 and cover the top of the outer wall of the rubber base 5. The control switch 7 is fixedly installed on the top of the frame 1. The control switch 7 is electrically connected to the electric telescopic rod 2 and the infrared sensor 811.

[0052] It should be noted that, firstly, remove the cap from the top of the sampling bottle 4, rotate and screw the top of the bottle into the bottom of the connecting module 3, and place the rubber base 5 on the top of the stand 1 directly below the sampling bottle 4. Then, move the pressure plates 6 on both sides to cover the top of the rubber base 5 to complete the connection and fixation. Place the entire stand 1 into the water area to be sampled. Control the operation of the electric telescopic rod 2 through the control switch 7. The electric telescopic rod 2 drives the sampling bottle 4 to move downward through the connecting module 3, insert it into the water surface to intercept the water column, and complete the water sample collection after docking with the rubber base 5.

[0053] like Figures 1-7 As shown, the dual-state compensation trigger module 8 also includes:

[0054] A pair of connecting racks 804 are fixedly connected to the top of the two side extension sleeves 802 respectively. The extension sleeves 802 are T-shaped. The connecting racks 804 are slidably connected to the top of the stand 1. A cavity 803 is opened in the middle of both sides of the stand 1. The two side extension sleeves 802 are slidably connected to the inner wall of the two side extension sleeves 802 respectively. A bearing seat 806 is fixedly connected to the top of both sides of the stand 1. A transmission rod 807 is rotatably connected to the middle of the two side bearing seats 806. A transmission gear 805 is fixedly connected to the center of the outer wall of the two side transmission rods 807. The bottom of the transmission gear 805 is meshed with the top of the connecting racks 804.

[0055] It should be noted that as the connecting module 3 moves downward, the bottom of the connecting support plate 801 on both sides expands outward, further driving the extension sleeve plate 802 to move outward along the inner wall of the cavity 803. This horizontal displacement is transmitted to the transmission rod 807 through the connecting rack 804 and the transmission gear 805 to form a rotational transmission. The transmission rods 807 on both sides form positive and negative transmissions in the direction of synchronous water sample collection in the middle of the two side bearings 806.

[0056] like Figure 4 and Figure 6 As shown, the outer wall of the transmission rods 807 on both sides is fixedly connected to the arc plate 808 at the middle. Marking rods 809 are slidably connected to the lower middle of the connecting support plates 801 on both sides. Compensating springs 812 are sleeved on the outer wall of the marking rods 809 on both sides. One end of the compensating spring 812 is fixedly connected to the marking rod 809, and the other end of the compensating spring 812 is fixedly connected to the connecting support plate 801. Frames 810 are fixedly connected to the top of the support frame 1 on both sides. Infrared sensors 811 are fixedly installed on the top of the inner wall of the frames 810 on both sides. The infrared sensors 811 are located in the middle of the rotation trajectory of the arc plate 808 and are on the same straight line.

[0057] It should be noted that during the process of sampling bottle 4 moving downwards to intercept water sample, the two transmission rods 807 rotate in the positive direction towards the rubber base 5, driving the two arc plates 808 to rotate 180 degrees to switch positions to the outer wall of the rubber base 5. The middle part of the arc plates 808 passing through the two vertical frames 810 in the rotation path of the two arc plates 808 respectively interrupts the infrared light emitted by the two infrared sensors 811. Then, through the electrical signal, the control switch 7 controls the heating wire integrated in the arc plate 808 to operate for preheating. When the arc plate 808 rotates to switch to the outer wall of the rubber base 5, the rubber base 5 can be heat-conducted, heat is transferred to the rubber base 5 to restore its flexibility, compensate for the hardening effect of low temperature on rubber, ensure that the sealing surface is tightly fitted, eliminate the small gaps caused by insufficient elasticity, and avoid water sample leakage. In addition, when heated, the rubber base 5 and the mouth of the sampling bottle 4 are heated and slightly expanded at the same time. The thermal expansion characteristics of rubber are used to squeeze the gap filled by the oil film. Even if there is oil film residue, the pressure generated by thermal expansion can squeeze the oil film, strengthen the sealing effect, and reduce the risk of leakage.

[0058] Correspondingly, after the water sample collection and sealing process is completed, the two pressure plates 6 on both sides are rotated in the opposite direction to release the restriction on the rubber base 5. The electric telescopic rod 2 drives the sealed water sample upward to separate it from the sampling area. Correspondingly, the extension sleeve 802 moves in the opposite direction from its original direction of movement, triggering the reverse rotation of the arc plate 808. After the water sample moves into place, the arc plate 808 also rotates back to its initial position and contacts the marking rod 809 during the rotation, generating a compressive force on the compensating spring 812 and causing deformation. The marking rod 809 pops out to the connecting support plate 80. Externally, the indicator shows the end of the water sample collection process. When the position of the heat-conducting arc plate 808 of the rubber base 5 is rotated and switched next time, the squeezing force on the marking rod 809 is eliminated. Under the action of the elastic potential energy accumulated by the deformation of the compensating spring 812, the marking rod 809 is reset and stored inside the connecting support plate 801. This effectively avoids improper operation by the operator before the sampling is completed, such as moving the sampler in advance or disassembling the sampling bottle 4. This ensures the standardization of the sampling process and the accuracy of the sampling results, and prevents problems such as water sample leakage, pollution or collection failure due to misoperation.

[0059] like Figures 1-2 and Figures 6-10 As shown, the pre-treatment protection module 9 also includes:

[0060] Four sets of connecting plates 901 are fixedly connected to the two ends of the outer wall of the two transmission rods 807. Hollow frames 902 are fixedly connected to the top four sides of the support frame 1. Lifting columns 903 are slidably connected to the inner walls of the four hollow frames 902. The end of the connecting plate 901 away from the transmission rod 807 is hinged to the middle of the bottom end of the lifting column 903. The outer wall of the connecting plate 901 is slidably connected to the middle of the hollow frame 902. The top of the four lifting columns 903 is fixedly connected to the bottom of the dynamic plate 904. The inner wall of the dynamic plate 904 is evenly circumferentially... The system has several fan-shaped cavities 905. The outer wall of the fan-shaped plate 908 is slidably connected to the inner wall of the fan-shaped cavity 905. The top of each fan-shaped plate 908 is fixedly connected to a guide rod 907. The top of the dynamic plate 904 has several rectangular grooves evenly distributed around its circumference. The outer wall of the guide rod 907 is slidably connected to the inner wall of the rectangular groove. The inner walls of the four fan-shaped cavities 905 are provided with connecting springs 906. One end of the connecting spring 906 is fixedly connected to the dynamic plate 904, and the other end of the connecting spring 906 is fixedly connected to the guide rod 907.

[0061] It should be noted that during the water sample collection and interception of the water column, the forward and reverse rotational forces alternately drive the process. When the sampling bottle 4 moves downward, the dynamic plate 904 moves downward accordingly under the action of the forward rotational force. Before the sampling bottle 4 docks with the rubber base 5, the bottle mouth of the sampling bottle 4 contacts each of the sector plates 908. With the assistance of the guide rod 907, each sector plate 908 moves towards the inner wall of the corresponding sector cavity 905 by squeezing each connecting spring 906. The bottle mouth gradually squeezes and contacts the sector plate 908 in the middle of the dynamic plate 904, using the continuous downward pressure to scrape away the solidified oil film layer by layer. The connection is sealed and the connection area is heat-conducting to compensate for the temperature drop of the water sample caused by the low temperature of the environment. This is suitable for detection methods that are sensitive to the water sample temperature, avoids subsequent detection errors caused by excessively low temperature, slows down the low-temperature stratification or crystallization of oily substances in the water sample, and ensures the uniformity of water sample composition during detection. Correspondingly, when the water sample is transferred upward and reset, the sampling bottle 4 and the rubber base 5 pass through the through hole in the middle of the dynamic plate 904, and under the action of the reverse rotational force, they move synchronously a distance at the bottom of the sampling bottle 4 to form bottom support protection. The heat conduction and temperature compensation mode and the physical protection mode are switched according to the process requirements.

[0062] A method for using a water oil sampler, applicable to a water oil sampler, includes the following steps:

[0063] Step 1: Place the rubber base 5 on top of the stand 1 and directly below the sampling bottle 4. Rotate the two pressure plates 6 on both sides to cover the top of the outer wall of the rubber base 5 and fix it. Then place the stand 1 into the water sample collection area and rotate the sampling bottle 4 into the bottom of the connecting module 3. Drive the sampling bottle 4 to move downward along the two sides of the outer wall of the stand 1 through the electric telescopic rod 2, cut the water column through the liquid surface and collect it inside the sampling bottle 4. During the continuous downward movement, it docks with the rubber base 5 to seal the water sample.

[0064] Step 2: As the water sample collection path moves downward, the bottom of the connecting support plates 801 on both sides, which are subjected to the downward force of the connecting module 3, expands outward, further driving the extension sleeve 802 to move outward along the inner wall of the cavity 803. This horizontal displacement is transmitted to the transmission rod 807 through the connecting rack 804 and the transmission gear 805 to form a rotational transmission.

[0065] During the downward movement of the sampling bottle 4 driven by the electric telescopic rod 2, the connecting plates 901 on both sides rotate downward in the direction of movement of the sampling bottle 4 under the rotational transmission of the transmission rod 807, and drive the dynamic plate 904 to move into place in the direction of the rubber base 5 with the cooperation of the hollow frame 902 and the lifting column 903. During the downward movement and docking process of the sampling bottle 4, the outer wall of the bottle mouth is pressed and contacted with the top of each fan-shaped plate 908 to peel off the attached solidified oil film.

[0066] As the sampling bottle 4 and the rubber base 5 are aligned, the two arc plates 808 rotate from their original positions to the outer wall of the rubber base 5 under the action of rotational transmission. After passing through the frame 810 and interrupting the infrared rays emitted downward by the infrared sensor 811, the heating wire module inside the arc plate 808 starts to operate. After the two arc plates 808 are switched to their positions, they transfer heat to the rubber base 5 and the bottle mouth of the sampling bottle 4, helping the rubber base 5 to regain its elasticity and melting the solid oil film remaining at the bottle mouth of the sampling bottle 4, eliminating gaps when the two are aligned and ensuring the tightness of the connection.

[0067] Step 3: After the sampling bottle 4 is connected to the rubber base 5, the sealing for water sample collection is completed. Next, the pressure plates 6 on both sides are rotated in the opposite direction to release the constraint on the rubber base 5. Driven in the opposite direction by the electric telescopic rod 2, the sampling bottle 4 and the rubber base 5 move upwards, passing through the central through-hole of the dynamic plate 904 and resetting. As the sampling bottle 4 moves, the connecting module 3, through the connecting support plates 801 on both sides, drives the extension sleeves 802 on both sides to move towards the inner wall of the cavity 803. Through the connecting rack 804 and the transmission gear 805, a reverse transmission is formed, causing the dynamic plate 904 to move upwards synchronously, thus collecting the water sample. The sampling bottle 4 and the rubber base 5 form a support below. During this process, the reverse transmission force also acts on the two arc plates 808. After the collected water sample moves and resets with the electric telescopic rod 2, the two arc plates 808 also penetrate the interior of the two vertical frames 810 again and interrupt the infrared line generated by the infrared sensor 811 again. The electric heating wire in the arc plate 808 is triggered by the control switch 7 through an electrical signal to stop operating. Finally, it rotates and moves to the initial position, contacts the marking rod 809, and causes the marking rod 809 to pop out by compressing the compensation spring 812. The water sample collection is completed.

[0068] Step 4: Rotate the sampling bottle 4 in the opposite direction to separate it from the bottom of the connecting module 3, and tighten the sealing cap on the upper bottle mouth. It can then be directly transported for the next step of water quality oil analysis and determination.

[0069] Working principle:

[0070] First, remove the cap from the top of the sampling bottle 4, rotate and screw the top of the bottle into the bottom of the connecting module 3, and place the rubber base 5 on the top of the stand 1 directly below the sampling bottle 4. Then, move the pressure plates 6 on both sides to cover the top of the rubber base 5 to complete the connection and fixation. Place the entire stand 1 into the water area to be sampled. Control the operation of the electric telescopic rod 2 through the control switch 7. The electric telescopic rod 2 drives the sampling bottle 4 to move downward through the connecting module 3, insert it into the water surface to intercept the water column, and complete the water sample collection after docking with the rubber base 5.

[0071] As the connecting module 3 moves downward, the bottom of the connecting support plates 801 on both sides expands outward, further driving the extension sleeve 802 to move outward along the inner wall of the cavity 803. This horizontal displacement is transmitted to the transmission rod 807 through the connecting rack 804 and the transmission gear 805 to form a rotational transmission. The transmission rods 807 on both sides move in the middle of the two side bearings 806 in the same direction of water sample collection, forming a forward and reverse transmission. During the process of the sampling bottle 4 moving downward to intercept the water sample, the transmission rods 807 on both sides rotate in the forward direction towards the rubber base 5, driving the two side arc plates 808 to rotate 180 degrees to switch positions to the outer wall of the rubber base 5. The rotation path of the two side arc plates 808 passes through the middle of the two side upright frames 810. The infrared light emitted by the infrared sensors 811 on both sides is interrupted. Then, the heating wire integrated in the arc plate 808 is controlled by the control switch 7 via an electrical signal to preheat. When the arc plate 808 rotates to switch to the outer wall of the rubber base 5, the rubber base 5 can be heat-conducted. Heat is transferred to the rubber base 5 to restore its flexibility, compensate for the hardening effect of low temperature on the rubber, ensure that the sealing surface is tightly fitted, eliminate the small gaps caused by insufficient elasticity, and avoid water sample leakage. When heated, the rubber base 5 and the mouth of the sampling bottle 4 are heated and slightly expanded at the same time. The thermal expansion characteristics of rubber are used to squeeze the gap filled by the oil film. Even if there is oil film residue, the pressure generated by thermal expansion can squeeze the oil film open, strengthen the sealing effect, and reduce the risk of leakage.

[0072] Correspondingly, after the water sample collection and sealing process is completed, the two pressure plates 6 on both sides are rotated in the opposite direction to release the restriction on the rubber base 5. The electric telescopic rod 2 drives the sealed water sample upward to separate it from the sampling area. Correspondingly, the extension sleeve 802 moves in the opposite direction from its original direction of movement, triggering the reverse rotation of the arc plate 808. After the water sample moves into place, the arc plate 808 also rotates back to its initial position and contacts the marking rod 809 during the rotation, generating a compressive force on the compensating spring 812 and causing deformation. The marking rod 809 pops out to the connecting support plate 80. The external indicator of the water sample collection process is completed. When the position of the heat-conducting arc plate 808 of the rubber base 5 is rotated and switched again, the squeezing force on the marking rod 809 is eliminated. Under the action of the elastic potential energy accumulated by the deformation of the compensation spring 812, the marking rod 809 is reset and stored inside the connecting support plate 801. This effectively avoids improper operation by the operator before the sampling is completed, such as moving the sampler in advance or disassembling the sampling bottle 4. This ensures the standardization of the sampling process and the accuracy of the sampling results, and prevents problems such as water sample leakage, pollution or collection failure due to misoperation.

[0073] During the water sample collection process, alternating forward and reverse rotational forces are transmitted. When the sampling bottle 4 moves downward, the dynamic plate 904 moves downward accordingly under the action of the forward rotational force. Before the sampling bottle 4 docks with the rubber base 5, the bottle mouth of the sampling bottle 4 contacts each sector plate 908. With the assistance of the guide rod 907, each sector plate 908 moves towards the inner wall of the corresponding sector cavity 905 by squeezing each connecting spring 906. The bottle mouth gradually presses against the sector plate 908 in the middle of the dynamic plate 904, using continuous downward pressure to scrape away the solidified oil film layer by layer before docking. The sealing and heat conduction treatment of the connection area compensates for the temperature drop of the water sample caused by the low temperature of the environment. It is suitable for detection methods that are sensitive to the water sample temperature, avoids subsequent detection errors caused by excessively low temperature, slows down the low-temperature stratification or crystallization of oily substances in the water sample, and ensures the uniformity of water sample composition during detection. Correspondingly, when the water sample is transferred upward and reset, the sampling bottle 4 and the rubber base 5 pass through the through hole in the middle of the dynamic plate 904, and under the action of the reverse rotation force, they move synchronously a distance at the bottom of the sampling bottle 4 to form bottom support protection. The heat conduction and temperature compensation mode and physical protection mode are switched according to the process requirements.

[0074] After the water sample is collected and reset, the sampling bottle 4 is rotated off from the bottom of the connecting module 3 and the sealing cap is rotated onto the outer wall of the top of the sampling bottle 4 to facilitate the subsequent transport of the collected water sample for oil component determination.

[0075] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A water quality oil sampler, characterized by, It includes: The stand (1), the electric telescopic rod (2), the connection module (3), the sampling bottle (4), the rubber base (5), a pair of pressing plates (6) and the control switch (7), the water sample collection is completed by vertically intercepting the water column in the sampling bottle (4) and sealing with the rubber base (5); The double-state compensation trigger module (8) includes a pair of connection support plates (801) and an extension sleeve plate (802), the top of the connection support plate (801) is hingedly arranged at the bottom of the connection module (3), the bottom of the connection support plate (801) is hingedly arranged at the top of the extension sleeve plate (802), and the top of the stand (1) is rotatably connected with an arc plate (808) on both sides, and the extension sleeve plate (802) is subjected to the outward expansion force during the downward water sample collection process of the connection module (3); The pre-protection module (9) includes a dynamic plate (904), a plurality of fan-shaped plates (908) are slidably connected to the inner wall of the dynamic plate (904), and the dynamic plate (904) is switched in the same direction with the moving direction of the sampling path of the connection module (3); The top of the stand (1) is fixedly connected with an axle seat (806) on both sides, the middle of the axle seat (806) on both sides is rotatably connected with a transmission rod (807), the outer wall center position of the transmission rod (807) on both sides is fixedly connected with a transmission gear (805), the bottom of the transmission gear (805) is meshedly connected to the top of a connection rack (804), and the outer wall middle of the transmission rod (807) on both sides is fixedly connected with the arc plate (808). During the downward movement of the sampling bottle (4) to intercept the water sample, the transmission rods (807) on both sides rotate in the direction of approaching the rubber base (5), drive the arc plates (808) on both sides to rotate by one hundred and eighty degrees to switch positions to the outer wall of the rubber base (5), the rotating path of the arc plates (808) on both sides penetrates the middle of the vertical frame (810) to break the infrared light emitted by the infrared sensors (811) on both sides, and then the electric heating wires integrated in the arc plates (808) are controlled by the control switch (7) to operate preheating through electric signals.

2. A water quality oil sampler according to claim 1, characterised in that: The double-state compensation trigger module (8) further includes: A pair of connection racks (804) are fixedly connected to the top of the extension sleeve plate (802) on both sides, cavities (803) are formed in the middle of the stand (1) on both sides, and the extension sleeve plates (802) on both sides are slidably connected to the inner wall of the cavities (803) on both sides.

3. A water quality oil skimmer as claimed in claim 2 wherein: Marking ball rods (809) are slidably connected to the lower middle of the connection support plates (801) on both sides, compensation springs (812) are sleeved on the outer wall of the marking ball rods (809) on both sides, one end of the compensation spring (812) is fixedly connected with the marking ball rod (809), and the other end of the compensation spring (812) is fixedly connected with the connection support plate (801).

4. A water quality oil skimmer as claimed in claim 3 wherein: The top of the stand (1) is fixedly connected with stand frames (810) on both sides, the inner walls of the stand frames (810) on both sides are fixedly installed with infrared sensors (811) on the top, the infrared sensors (811) are arranged on the middle part of the rotating track of the arc-shaped plate (808) and are located on the same straight line.

5. A water quality oil skimmer as claimed in claim 4 wherein: The pre-protection module (9) further comprises: Four groups of connecting plates (901) are fixedly connected with the outer walls of the two transmission rods (807) on both ends, the top of the stand (1) is fixedly connected with hollow frames (902) on four sides, the inner walls of the hollow frames (902) on four sides are slidably connected with lifting columns (903), and the ends, away from the transmission rods (807), of the connecting plates (901) are hingedly arranged at the middle part of the bottom end of the lifting columns (903).

6. A water quality oil skimmer as claimed in claim 5 wherein: The outer wall of the connecting plate (901) is slidably connected to the middle part of the hollow frame (902), the top end of the lifting column (903) on four sides is fixedly connected with the bottom of the dynamic plate (904), a plurality of fan-shaped cavities (905) are uniformly arranged on the inner wall of the dynamic plate (904), and the outer wall of the fan-shaped plate (908) is slidably connected to the inner wall of the fan-shaped cavity (905).

7. A water quality oil skimmer as claimed in claim 6 wherein: The top of the fan-shaped plate (908) is fixedly connected with a guide rod (907), a plurality of rectangular grooves are uniformly arranged on the top of the dynamic plate (904), the outer wall of the guide rod (907) is slidably connected to the inner wall of the rectangular groove, the inner wall of the fan-shaped cavity (905) on four sides is provided with a connecting spring (906), one end of the connecting spring (906) is fixedly connected with the dynamic plate (904), and the other end of the connecting spring (906) is fixedly connected with the guide rod (907).

8. A water quality oil skimmer according to claim 7, characterized in that: The electric telescopic rod (2) is fixedly installed at the middle part of the stand (1), the driving end of the electric telescopic rod (2) is fixedly connected with the top of the connecting module (3), the bottle opening outer wall of the sampling bottle (4) is threadedly connected with the bottom of the connecting module (3), the rubber base (5) is clamped and arranged at the top of the stand (1), the pressing tablets (6) on both sides are rotatably connected with the top of the stand (1) and cover the outer wall top of the rubber base (5), the control switch (7) is fixedly installed at the top of the stand (1), and the control switch (7) is electrically connected with the electric telescopic rod (2) and the infrared sensor (811).

9. A method for using a water quality oil sampler, applied to the water quality oil sampler of claim 8, characterized in that, The method comprises the following steps: Step 1: Place the rubber base (5) on the top of the stand (1) and directly below the sampling bottle (4), rotate the pressing tablets (6) on both sides to cover the outer wall top of the rubber base (5), and then fix the stand (1) in the water sampling area, and rotate the sampling bottle (4) to the bottom of the connecting module (3), drive the sampling bottle (4) to move downward along the outer walls of the stand (1) by the electric telescopic rod (2), penetrate the water column in the sampling bottle (4), and seal the water sample during the continuous downward movement and the connection with the rubber base (5); Step2: With the downward movement of the water sample collection path, the bottom of the two side connection plates (801) expands outward under the downward force of the adapter module (3), further driving the extension sleeve plate (802) to move outward along the inner wall of the cavity (803). This horizontal displacement is transmitted to the transmission rod (807) through the adapter rack (804) and transmission gear (805) to form a rotary transmission; During the downward movement of the sampling bottle (4) driven by the electric telescopic rod (2), the two side connecting plates (901) rotate downward under the rotary transmission of the transmission rod (807) corresponding to the movement direction of the sampling bottle (4), and move to the direction of the rubber base (5) under the cooperation of the hollow frame (902) and the lifting column (903) to drive the dynamic plate (904) to the position. During the downward movement of the sampling bottle (4), the bottle mouth outer wall is in extrusion contact with the top of each sector plate (908), and the solidified oil film attached is stripped and treated; With the butt joint of the sampling bottle (4) and the rubber base (5) in place, the two side arc plates (808) rotate from the original position to the symmetric position on the outer wall of the rubber base (5) under the action of rotary transmission force, and after breaking the infrared rays emitted downward by the infrared sensor (811) inside the vertical frame (810), the electric heating wire module inside the arc plate (808) starts to operate. After the two side arc plates (808) are switched to the position, heat is transferred to the rubber base (5) and the bottle mouth of the sampling bottle (4), assisting the rubber base (5) to restore elasticity and melting the solidified oil film remaining on the bottle mouth of the sampling bottle (4), eliminating the gap between the two when they are connected to ensure the tightness of the connection; Step3: After the sampling bottle (4) and the rubber base (5) are butt jointed, the sealing of the water sample collection is completed, and then the reverse rotation of the two side tablets (6) removes the limitation of the rubber base (5), and drives the sampling bottle (4) and the rubber base (5) upward through the electric telescopic rod (2) to pass through the center through hole of the dynamic plate (904) and reset. With the movement of the sampling bottle (4), the adapter module (3) drives the two side extension sleeve plates (802) to move towards the inner wall of the cavity (803) through the two side connection plates (801), and forms reverse transmission through the adapter rack (804) and transmission gear (805), so that the dynamic plate (904) moves upward synchronously. The sampling bottle (4) and the rubber base (5) form a support below, and in this process, the reverse transmission force also acts on the two side arc plates (808). When the collected water sample is reset with the electric telescopic rod (2), the two side arc plates (808) also pass through the inside of the two side vertical frames (810) again, and break the infrared rays generated by the infrared sensor (811) again. Through the electric signal, the electric heating wire in the arc plate (808) is triggered by the control switch (7) to stop working, and finally rotates to the initial position, contacts the marker ball rod (809), and deforms the compensation spring (812) through extrusion to make the marker ball rod (809) in the state of popping out, marking that the water sample collection is completed. Step 4: Reverse rotation of the sampling bottle (4) separates it from the bottom of the adapter module (3), and the sealing cap is screwed tightly on the upper end of the bottle mouth, which can be directly transported for the next step of water quality oil analysis determination.

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