Petroleum water quality sample sampler for surface water

Abstract

The invention relates to a petroleum water quality sample sampler for surface water. The petroleum water quality sample sampler comprises a supporting base, a plurality of supporting rods evenly arranged in the circumferential direction of the supporting base, a top cover arranged between the supporting rods, rope hook holes formed in the tops of the supporting rods, locking mechanisms arranged on the supporting rods in a sliding mode, and sampling mechanisms arranged on the supporting rods; according to the invention, the following problems can be solved: through cooperation of a fixing clamping belt and a locking bolt, a sampling bottle body is fixed, so that the situation that the total amount of collected samples does not reach a target due to deviation of the sampling bottle body during sampling is prevented; a fixed bottle plug is matched with a sampling bottle opening, and a floating plug is arranged, so that water on the surface is prevented from polluting the device and further polluting the sample; through cooperation of the floating plug and the clamping block, columnar water sample collection of petroleum underground water can be realized; the sealing performance is improved through the matching of the sealing ring and the sealing seat, so that the sample in the sampling bottle body is prevented from flowing out from the bottom.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum sampling, and in particular to a surface water petroleum water quality sampler. Background Art

[0002] Petroleum in surface water is an important indicator for relevant departments in my country to evaluate the quality of surface water and drinking water and control water pollution. The alkanes and aromatics contained in petroleum are highly toxic and have been included in the national hazardous waste list in my country. Understanding its diffusion and transformation laws in water bodies is of great significance and role in the research, monitoring and environmental management of petroleum in surface water.

[0003] There are many types of petroleum samplers on the market, and the mainstream samplers include double-rope samplers and float samplers. Double-rope samplers: Although this type of sampler can collect samples at a fixed depth under the water surface, it cannot control the amount of sample inflow. If the lifting operation is not timely, the bottle will be full, and it cannot achieve fixed volume sampling; float sampler: This type of sampler realizes automatic sampling at a fixed depth, but as the water body fluctuates up and down, it is easy to have a half-bottle or full-bottle situation, and the water sample enters the bottle from both sides, which does not meet the requirements for collecting columnar water samples.

[0004] However, ordinary surface water petroleum water quality sample samplers usually have some problems in daily use. With the development of science and technology, technicians in related fields have also made a lot of optimizations on surface water petroleum water quality sample samplers to solve some problems that different consumer groups are concerned about. In order to make a more accurate comparison, a Chinese patent with publication number CN212379092U discloses a surface water petroleum sampler, including an outer shell and an inner shell. The above-mentioned prior art is provided with an airbag, and by filling the airbag with gases of different pressures, after the above-mentioned device descends to a specified depth, the water pressure reduces the volume of the airbag, so that the airbag can drive the cover plate to rise, and the surface water of the specified depth enters the inner shell, and enters the inner cavity of the outer shell from the water inlet, so as to complete the sampling operation of the surface water of the specified depth, and the operation is convenient; by providing a circular ring plate, the circular ring plate is made of a material with a density lower than that of water, and when the inner cavity of the outer shell enters water, the circular ring plate is driven to rise, and when the water in the inner cavity of the outer shell reaches a certain amount, the circular ring plate blocks the water inlet to avoid mixing with surface water of different depths, and at the same time, through the recovery of this device, the water pressure is reduced and the airbag is enlarged, and the cover plate covers the top surface of the inner shell, further ensuring the accuracy of the water used. The above-mentioned prior art has the advantages of adjustable sampling depth and accurate sampling.

[0005] However, the above-mentioned surface water petroleum sampler has some shortcomings in actual use:

[0006] 1. The above-mentioned surface water petroleum sampler is configured by filling the airbag with gases of different pressures so that after the device descends to a specified depth, the volume of the airbag is reduced by squeezing the airbag through water pressure, and surface water enters the inner cavity of the shell through the water inlet, thereby completing the sampling operation of surface water at a specified depth. The operation is convenient, but the shell cannot be filled by sucking in surface water through the airbag, and the requirements for collecting columnar water samples cannot be met.

[0007] 2. When the water in the inner cavity of the shell of the above-mentioned surface water petroleum water quality sample sampler reaches a certain amount, the water inlet is blocked by the circular ring plate to isolate the inner cavity of the shell and avoid mixing with surface water at different depths. However, when the shell is placed in the surface water, the surface water will enter the shell, thereby polluting the inner cavity of the shell and causing contamination of the sample.

[0008] Therefore, under the above-stated viewpoint, there is still room for improvement in the existing surface water petroleum water quality sampler. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a surface water petroleum water quality sample sampler, including a support base, a plurality of support rods are evenly arranged along the circumference of the support base, a top cover is arranged between the support rods, a rope hook hole is opened on the top of the support rods, a locking mechanism is slidably arranged on the support rods, and a sampling mechanism is arranged on the support rods.

[0010] The locking mechanism comprises a sliding rod slidably sleeved on the supporting rod, wherein a hinge is symmetrically sleeved on one of the sliding rods, and a fixing clip is symmetrically arranged on the outer wall of the hinge.

[0011] Preferably, the locking mechanism also includes a rubber pad arranged on the inner wall of the fixed strap, a square plate is arranged on the outer wall of the fixed strap, and a connecting block is sleeved on the sliding rod, a spring is arranged between the connecting block and the square plate, a locking plate is arranged on the side of the fixed strap away from the hinge, and a locking bolt is arranged between the locking plates through threaded cooperation.

[0012] Preferably, the sampling mechanism includes a glass cover arranged at the bottom of the top cover, a plurality of exhaust holes are evenly opened along the circumference of the glass cover and the top cover, a fixed bottle plug is arranged at the bottom of the glass cover, a sampling bottle mouth is provided on the fixed bottle plug in cooperation with a sliding sleeve, and a sampling bottle body is arranged at the bottom of the sampling bottle mouth and located between the fixed cassettes.

[0013] Preferably, the sampling mechanism further includes a sealing seat arranged at the bottom of the sampling bottle body. The top of the support base is provided with a sampling bottle base through threaded cooperation. The top of the sampling bottle base is provided with a sealing ring that cooperates with the sealing seat. A floating plug is slidably arranged at the inner bottom of the sampling bottle body. A guide rod is arranged at the top of the floating plug and extends upward through the glass cover and the top cover. A limiting rod is arranged at the top of the guide rod, and an unlocking unit is arranged at the top of the top cover.

[0014] Preferably, the unlocking unit includes a block arranged on the outer wall of the sliding rod. A clamping groove that cooperates with the block is formed on the sliding rod. The block is symmetrically provided with moving rods. The support rod is symmetrically provided with rotating shafts located above the block. A connecting rod is connected between the rotating shaft and the moving rod, and the connecting rod is rotatably sleeved on the rotating shaft.

[0015] Preferably, the unlocking unit further includes a strip-shaped plate arranged on the side of the connecting rod away from the block and above the top cover. A second spring is arranged between the strip-shaped plate and the top cover. A plurality of pressing plates are rotatably arranged along the circumferential direction of the top cover above the strip-shaped plate. A plurality of top plates are uniformly arranged along the circumferential direction of the top of the floating plug below the pressing plates. Square through grooves for the top to move are formed on the top cover and the glass cover.

[0016] Preferably, the top of the sampling bottle base is provided with a fixing mechanism. The fixing mechanism includes a plurality of spring pieces uniformly arranged along the circumferential direction of the top of the sampling bottle base. An anti-slip pad is arranged on the side of the top of the spring piece close to the sealing ring. An extrusion ring is slidably arranged on the top of the spring piece.

[0017] Preferably, the fixing mechanism further includes a plurality of strip-shaped blocks symmetrically and uniformly arranged along the circumferential direction of the top of the sampling bottle base. A rack is slidably arranged in a staggered manner on the symmetric strip-shaped blocks. A moving track for the rack to slide is formed on the strip-shaped block. A gear is rotatably meshed between the racks through a bracket.

[0018] Preferably, the fixing mechanism further includes that one of the racks is connected to the extrusion ring through an L-shaped connecting rod. A first limiting groove for the L-shaped connecting rod to slide is formed on the corresponding strip-shaped block. The front side of the other rack penetrates through the strip-shaped block and is provided with an extension rod. A second limiting groove for the extension rod to slide is formed on the corresponding strip-shaped block. A U-shaped block is arranged along the circumferential direction of the sampling bottle body above the extension rod.

[0019] Preferably, scale lines are engraved on the sampling bottle body.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The present invention fixes the sampling bottle body by the cooperation of the fixing tape and the locking bolt to prevent the sampling bottle body from shifting during sampling, resulting in the total amount of collected samples failing to reach the target; it also prevents the surface water from entering the sampling bottle body when the sampling bottle body enters the surface water by the cooperation of the fixing bottle stopper and the sampling bottle mouth and the floating stopper, thereby preventing the surface water from contaminating the device and further contaminating the sample.

[0022] 2. The present invention achieves the function of the sampling bottle body sliding down at a specified depth through the cooperation of the floating plug and the card block, thereby enabling columnar water sampling of petroleum groundwater; and also improves the sealing between the sampling bottle body and the sampling bottle base through the cooperation of the sealing ring and the sealing seat, thereby preventing the sample in the sampling bottle body from flowing out from the bottom.

[0023] 3. The present invention prevents the sampling bottle from moving after being filled with samples through the cooperation of the U-shaped block and the extrusion ring, and further prevents the sample in the sampling bottle from flowing out from the bottom of the sampling bottle; and also removes the sampling bottle together with the sampling bottle base from the device by rotating, so that the operator can carry out the next step of processing of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the locking mechanism and scale lines of the present invention.

[0027] Figure 3 It is a structural schematic diagram of the sampling mechanism of the present invention.

[0028] Figure 4 It is a structural schematic diagram of the sampling mechanism of the present invention.

[0029] Figure 5 It is a structural schematic diagram of the unlocking unit of the present invention.

[0030] Figure 6 The present invention Figure 5 A partial enlarged view of point A.

[0031] Figure 7 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0032] Figure 8 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0033] Fig. 9 The present invention Figure 8 A partial enlarged view of point B.

[0034] In the figure, 1, support base; 10, support rod; 11, top cover; 12, rope hook hole; 2, locking mechanism; 3, sampling mechanism; 20, sliding rod; 21, hinge; 22, fixed cassette; 23, rubber pad; 24, square plate; 25, connecting block; 26, spring 1; 27, locking plate; 28, locking bolt; 30, glass cover; 301, exhaust hole; 31, fixed bottle plug; 310, sampling bottle mouth; 32, sampling bottle body; 33, sealing seat; 34, sampling bottle base; 35, sealing ring; 36, floating plug; 37, guide rod; 38, limit 1. Position rod; 39. Unlocking unit; 390. Block; 391. Slot; 392. Moving rod; 393. Rotating shaft; 394. Connecting rod; 395. Strip plate; 396. Spring 2; 397. Pressure plate; 398. Top plate; 399. Square through slot; 4. Fixing mechanism; 40. Spring sheet; 41. Anti-skid pad; 42. Extrusion ring; 43. Strip block; 430. Rack; 431. Moving track; 432. Gear; 44. L-shaped connecting rod; 45. Limiting slot 1; 46. Extension rod; 47. Limiting slot 2; 48. L-shaped block; 5. Scale line. DETAILED DESCRIPTION

[0035] The following is combined with Figures 1 to 9 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0036] The embodiment of the present application discloses a surface water petroleum water quality sample sampler, which explains that the local surface water petroleum water quality sample sampler is mainly used in the process of sampling surface water petroleum water, and can automatically sample petroleum surface water in terms of technical effect, thereby reducing inaccurate sampling caused by operator errors; especially during sampling, surface water will not enter the sampler, preventing surface water from contaminating the device and further causing contamination of the sample; further, the local surface water petroleum water quality sample sampler can also collect quantitatively during sampling, preventing operators from performing secondary collection, thereby causing the fusion of samples at different positions, thereby affecting the accuracy of detection.

[0037] Embodiment 1:

[0038] Reference Figure 1As shown, a surface water petroleum water quality sample sampler includes a support base 1, a support rod 10, a top cover 11, a rope hook hole 12, a locking mechanism 2 and a sampling mechanism 3. A plurality of support rods 10 are evenly arranged along the circumference of the support base 1, and a top cover 11 is arranged between the support rods 10. Rope hook holes 12 are opened on the tops of the support rods 10, and the rope hook holes 12 are used for ropes to pass through, so that the device can be placed into the specified depth of the surface water through the rope; a locking mechanism 2 is slidably arranged on the support rod 10, and a sampling mechanism 3 is arranged on the support rod 10. The locking mechanism 2 is used to fix the sampling mechanism 3 to prevent the sampling mechanism 3 from tilting during sampling, thereby causing the total amount of collected samples to fail to reach the target. The sampling mechanism 3 is used to automatically sample petroleum surface water, thereby reducing inaccurate sampling caused by operator errors.

[0039] During the specific implementation process, the operator first passes the rope through the rope hook hole 12, and then lowers the device into the specified depth of the surface water through the rope. During this process, the sampling mechanism 3 is fixed by the locking mechanism 2 to prevent the sampling mechanism 3 from tilting during sampling, thereby causing the total amount of collected samples to change. The petroleum surface water is then automatically sampled through the sampling mechanism 3, thereby reducing inaccurate sampling caused by operator errors. After the sampling is completed, the device is pulled out of the surface water again by the rope to achieve sampling of petroleum surface water.

[0040] Reference Figure 2As shown, the locking mechanism 2 in the present application; specifically, the locking mechanism 2 includes a sliding rod 20, a hinge 21, a fixed tape 22, a rubber pad 23, a square plate 24, a connecting block 25, a spring 26, a locking plate 27 and a locking bolt 28. The support rod 10 is slidably sleeved with a sliding rod 20, and the sliding rod 20 can slide under the restriction of the support rod 10; one of the sliding rods 20 is symmetrically sleeved with a hinge 21, and the hinge 21 can rotate under the restriction of the sliding rod 20; the outer wall of the hinge 21 is symmetrically provided with a fixed tape 22, and when the hinge 21 rotates, it can drive the fixed tape 22 to rotate together, and the sampling mechanism 3 can be fixed by the fixed tape 22; the inner wall of the fixed tape 22 is provided with a rubber pad 23, and the rubber pad 23 is used to increase the fixed tape The friction between 22 and the sampling mechanism 3 can further fix the sampling mechanism 3; the outer wall of the fixed tape 22 is provided with a square plate 24, and when the fixed tape 22 rotates, the square plate 24 can be driven to rotate together; in addition, a connecting block 25 is sleeved on the sliding rod 20, and a spring 26 is provided between the connecting block 25 and the square plate 24, so that the fixed tape 22 can fix the sampling mechanisms 3 with different diameters through the spring 26; a locking piece 27 is provided on the side of the fixed tape 22 away from the hinge 21, and locking bolts 28 are provided between the locking pieces 27 through threaded cooperation, and the fixed tape 22 is tightly fitted to the sampling mechanism 3 by pinching the locking piece 27, and then the fixed tape 22 is fixed by the cooperation of the locking bolt 28 and the locking piece 27.

[0041] During the specific implementation process, the operator pinches the locking piece 27, which can make the fixed tape 22 fit tightly against the sampling mechanism 3 under the restriction of the hinge 21. When the fixed tape 22 rotates, it can drive the rubber pad 23 to move together. The friction between the fixed tape 22 and the sampling mechanism 3 is increased by the rubber pad 23, so as to further fix the sampling mechanism 3. Then, the fixed tape 22 is fixed by the cooperation of the locking bolt 28 and the locking piece 27, so as to fix the sampling mechanism 3 and prevent the sampling mechanism 3 from shifting during sampling, resulting in the total amount of collected samples failing to reach the target.

[0042] Reference Figure 3As shown, that is, the sampling mechanism 3 in the present application; specifically, the sampling mechanism 3 includes a glass cover 30, an exhaust hole 301, a fixed bottle plug 31, a sampling bottle mouth 310 and a sampling bottle body 32. The glass cover 30 is arranged at the bottom of the top cover 11, and a plurality of exhaust holes 301 are evenly opened along the circumference of the glass cover 30 and the top cover 11, and the exhaust holes 301 are used to exhaust the air in the sampling bottle body 32; a fixed bottle plug 31 is arranged at the bottom of the glass cover 30, and a sampling bottle mouth 310 is arranged on the fixed bottle plug 31 to cooperate with the sliding sleeve. The sealing between the sampling bottle body 32 and the fixed bottle plug 31 is improved by the cooperation between the fixed bottle plug 31 and the sampling bottle mouth 310, so as to prevent the surface water on the surface of the sampling bottle body 32 from entering the sampling bottle body 32 when the sampling bottle body 32 enters the surface water; the sampling bottle body 32 located between the fixed cassette 22 is arranged at the bottom of the sampling bottle mouth 310, and the sampling bottle body 32 is used to store samples.

[0043] In the specific implementation process, in the initial state, the sealing between the sampling bottle body 32 and the fixed bottle plug 31 is improved by the cooperation between the fixed bottle plug 31 and the sampling bottle mouth 310 to prevent the surface water from entering the sampling bottle body 32 when the sampling bottle body 32 enters the surface water, and then the sampling bottle body 32 is placed to the specified position through the rope. When the sliding rod 20 slides under the restriction of the support rod 10, it will drive the sampling bottle body 32 to move together. When the sampling bottle body 32 moves, it can drive the sampling bottle mouth 310 to move together. In this process, petroleum surface water will enter the sampling bottle body 32 to realize the collection of samples.

[0044] Reference Figure 4As shown, that is, the sampling mechanism 3 in the present application; specifically, the sampling mechanism 3 also includes a sealing seat 33, a sampling bottle base 34, a sealing ring 35, a floating plug 36, a guide rod 37, a limit rod 38 and an unlocking unit 39. A sealing seat 33 is provided at the bottom of the sampling bottle body 32, and a sampling bottle base 34 is provided at the top of the support base 1 through threaded cooperation. The sampling bottle base 34 can be taken out of the support base 1 by rotating the sampling bottle base 34; a sealing ring 35 cooperating with the sealing seat 33 is provided at the top of the sampling bottle base 34, and the sealing between the sampling bottle body 32 and the sampling bottle base 34 is improved through the cooperation of the sealing ring 35 and the sealing seat 33, thereby preventing the sample in the sampling bottle body 32 from flowing out from the bottom; a floating plug 36 is slidably provided at the bottom of the sampling bottle body 32, and the floating plug 36 can prevent surface water from entering the sampling bottle body 3 in the initial state. 2, and then as the sampling bottle body 32 moves to the specified groundwater depth, the floating plug 36 moves upward under the action of water buoyancy and under the restriction of the sampling bottle body 32, so that the petroleum groundwater at the specified depth enters the sampling bottle body 32; a guide rod 37 is arranged on the top of the floating plug 36, and the guide rod 37 extends upward through the glass cover 30 and the top cover 11. When the floating plug 36 moves, it can drive the guide rod 37 to move together. By observing the height of the guide rod 37 exposed from the top cover 11, the amount of sample collected in the sampling bottle body 32 can be known; a limit rod 38 is arranged on the top of the guide rod 37, and the limit rod 38 can prevent the floating plug 36 from falling from the sampling bottle body 32; an unlocking unit 39 is arranged on the top of the top cover 11, and the unlocking unit 39 enables the sampling bottle body 32 to slide down at the specified depth, so that petroleum groundwater can be sampled.

[0045] In the specific implementation process, the floating plug 36 can prevent surface water from entering the sampling bottle body 32 in the initial state, and then the sampling bottle body 32 can slide down at a specified depth through the unlocking unit 39. When the sampling bottle body 32 moves to the specified groundwater depth, the floating plug 36 moves upward under the action of water buoyancy and under the restriction of the sampling bottle body 32, so that petroleum groundwater at a specified depth enters the sampling bottle body 32. At the same time, when the floating plug 36 moves, it can drive the guide rod 37 to move together. By observing the height of the guide rod 37 exposed from the top cover 11, the amount of sample collected in the sampling bottle body 32 can be known; when the sample collection is completed, the sampling bottle body 32 is rotated, and when the sampling bottle body 32 rotates, it can drive the sampling bottle base 34 to rotate together, so that the sampling bottle body 32 can be removed from the device together with the sampling bottle base 34 to facilitate the operator to carry out the next step of processing.

[0046] Reference Figure 5 and Figure 6As shown, it is the unlocking unit 39 in the present application; specifically, the unlocking unit 39 includes a block 390, a slot 391, a moving rod 392, a rotating shaft 393 and a connecting rod 394. A block 390 is provided on the outer wall of the sliding rod 20, and a slot 391 cooperating with the block 390 is provided on the sliding rod 20. The cooperation between the block 390 and the slot 391 can prevent the sliding rod 20 from moving; the block 390 is symmetrically provided with the moving rod 392, and the support rod 10 is symmetrically provided with a rotating shaft 393 located above the block 390. The rotating shaft 393 and the moving rod 392 are connected by a connecting rod 394, and the connecting rod 394 is rotatably sleeved on the rotating shaft 393. When the connecting rod 394 rotates under the restriction of the rotating shaft 393, it can drive the moving rod 392 to move together, and when the connecting rod 394 moves, it can drive the block 390 to move together.

[0047] In the specific implementation process, when the connecting rod 394 rotates under the restriction of the rotating shaft 393, it can drive the moving rod 392 to move together. When the connecting rod 394 moves, it can drive the block 390 to move together, so that the block 390 is moved out of the slot 391, so that the sliding rod 20 moves downward under the action of gravity. When the sliding rod 20 moves, it can drive the sampling bottle body 32 to move together, so that the sampling bottle body 32 can slide down at a specified depth, so that petroleum groundwater can be sampled.

[0048] Reference Figure 5 As shown, the unlocking unit 39 in the present application; specifically, the unlocking unit 39 also includes a strip plate 395, a second spring 396, a pressure plate 397, a top plate 398 and a square through groove 399, a strip plate 395 is arranged on the side of the top of the connecting rod 394 away from the block 390 and above the top cover 11, the strip plate 395 can rotate under the restriction of the rotating shaft 393, and the strip plate 395 can drive the connecting rod 394 to rotate together when rotating; a second spring 396 is arranged between the strip plate 395 and the top cover 11, and the second spring 396 can always provide an upward thrust for the strip plate 395; along The top cover 11 is circumferentially rotatable and is provided with a plurality of pressure plates 397 located above the strip plate 395. A plurality of top plates 398 located below the pressure plates 397 are evenly arranged circumferentially along the top of the floating plug 36. The top cover 11 and the glass cover 30 are provided with square through grooves 399 for the top to move. The movement of the floating plug 36 can drive the top plates 398 to move together. When the floating plug 36 moves from the bottom of the sampling bottle body 32 to the inside of the fixed bottle plug 31, the top plate 398 drives the pressure plate 397 to rotate through the square through groove 399. When the pressure plate 397 rotates, it contacts the strip plate 395 and drives the strip plate 395 to rotate.

[0049] In the specific implementation process, when the floating plug 36 moves from the bottom of the sampling bottle body 32 to the inside of the fixed plug 31, the movement of the floating plug 36 can drive the top plate 398 to move together. The top plate 398 drives the pressure plate 397 to rotate through the square through groove 399. When the pressure plate 397 rotates, it contacts the strip plate 395 and drives the strip plate 395 to rotate. When the strip plate 395 rotates, it can drive the connecting rod 394 to rotate together.

[0050] Embodiment 2:

[0051] Reference Figure 7 As shown, on the basis of Example 1, in order to further prevent the sample in the sampling bottle body 32 from flowing out from the bottom of the sampling bottle body 32 after the sampling bottle body 32 is filled with the sample and enable the rope to be moved out of the device together with the sampling bottle base 34 by rotating the sampling bottle body 32 after the device is pulled out of the water, so as to facilitate the operator to carry out the next step of processing, in a specific embodiment of the present scheme, a fixing mechanism 4 is arranged on the top of the sampling bottle base 34; specifically, the fixing mechanism 4 includes a spring sheet 40, an anti-slip pad 41 and an extrusion ring 42, and a plurality of spring sheets 40 are evenly arranged along the circumference of the top of the sampling bottle base 34, an anti-slip pad 41 is arranged on the side of the top of the spring sheet 40 close to the sealing ring 35, and an extrusion ring 42 is slidably arranged on the top of the spring sheet 40, and the position of the extrusion ring 42 is controlled to control whether the spring sheet 40 bounces up, thereby controlling whether the anti-slip pad 41 conflicts with the sampling bottle body 32.

[0052] In the specific implementation process, the position of the squeezing ring 42 is controlled to control whether the spring sheet 40 bounces up, and then whether the anti-slip pad 41 interferes with the sampling bottle body 32, so as to prevent the sample in the sampling bottle body 32 from flowing out from the bottom of the sampling bottle body 32 after the sampling bottle body 32 is filled with samples, and the rope can be turned to remove the sampling bottle body 32 from the device together with the sampling bottle base 34 after the device is pulled out of the water, so as to facilitate the operator to carry out the next step of processing.

[0053] Reference Figure 8 and Fig. 9As shown, it is the fixing mechanism 4 in the present application; specifically, the fixing mechanism 4 further includes a strip-shaped block 43, a rack 430, a moving track 431, a gear 432, an L-shaped connecting rod 44, a first limiting groove 45, an extension rod 46, a second limiting groove 47, and a U-shaped block 48. A plurality of strip-shaped blocks 43 are evenly and symmetrically arranged circumferentially along the top of the sampling bottle base 34. When the sampling bottle base 34 moves, it can drive the strip-shaped blocks 43 to move together; the racks 430 are slidably arranged in a staggered manner on the symmetric strip-shaped blocks 43, and the racks 430 can slide under the restriction of the strip-shaped blocks 43; the strip-shaped blocks 43 are provided with moving tracks 431 for the racks 430 to slide. The racks 430 are rotationally engaged with a gear 432 through a bracket. When one of the racks 430 moves, it can drive the gear 432 to rotate, and when the gear 432 rotates, it can drive the other rack 430 to move in the opposite direction; one of the racks 430 is connected to the pressing ring 42 through an L-shaped connecting rod 44. When the rack 430 moves, it can drive the L-shaped connecting rod 44 to move together, and when the L-shaped connecting rod 44 moves, it can drive the pressing ring 42 to move together; the corresponding strip-shaped blocks 43 are provided with a first limiting groove 45 for the L-shaped connecting rod 44 to slide. The front side of the other rack 430 penetrates through the strip-shaped block 43 and is provided with an extension rod 46. When the extension rod 46 moves, it can drive the rack 430 to move together; the corresponding strip-shaped blocks 43 are provided with a second limiting groove 47 for the extension rod 46 to slide. A U-shaped block 48 is arranged circumferentially along the sampling bottle body 32 above the extension rod 46. When the sampling bottle body 32 moves, it can drive the U-shaped block 48 to move together, and when the U-shaped block 48 moves, it can drive the extension rod 46 to move together.

[0054] In the specific implementation process, when the sampling bottle body 32 moves downward, it can drive the U-shaped block 48 to move together. When the U-shaped plate moves, it can contact the extension rod 46 and drive the extension rod 46 to move downward together. When the extension rod 46 moves, it can drive the rack 430 connected to it to move under the restriction of the strip-shaped block 43. When the rack 430 moves, it can drive the gear 432 to rotate together. When the gear 432 rotates, it can drive the other rack 430 to move in the opposite direction. When the other rack 430 moves in the opposite direction, it can drive the L-shaped connecting rod 44 to move together. When the L-shaped connecting rod 44 moves, it can drive the pressing ring 42 to move upward, so that the spring piece 40 pops up and the anti-slip pad 41 contacts the sampling bottle body 32.

[0055] Refer to Figure 2 As shown, in order to more clearly know the total amount of the sample in the sampling bottle body 32; specifically, scale lines 5 are engraved on the sampling bottle body 32.

[0056] It should be further noted that the sampling bottle body 32 should be made of a transparent material, which is convenient for the operator to more clearly know the total amount of the sample in the sampling bottle body 32 by observing the liquid level height of the sample in the sampling bottle body 32 and the corresponding scale lines 5.

[0057] During operation: In the first step, the operator pinches the locking piece 27. When the locking piece 27 is pinched, the fixing strap 22 can fit tightly against the sampling bottle body 32 under the restriction of the hinge 21. When the fixing strap 22 rotates, the rubber pad 23 can be driven to move together. The friction between the fixing strap 22 and the sampling bottle body 32 is increased through the rubber pad 23, so as to further fix the sampling bottle body 32. Then, the fixing strap 22 is fixed by the cooperation of the locking bolt 28 and the locking piece 27, so as to fix the sampling bottle body 32 and prevent the sampling bottle body 32 from shifting during sampling, resulting in the total amount of collected samples failing to reach the target.

[0058] Step 2: The operator then passes the rope through the rope hook hole 12, and uses the rope to place the device into the specified depth of the surface water. During this process, the floating plug 36 is used to prevent the surface water from entering the sampling bottle body 32, and the cooperation between the fixed bottle plug 31 and the sampling bottle mouth 310 improves the sealing between the sampling bottle body 32 and the fixed bottle plug 31, so as to prevent the surface water on the surface of the sampling bottle body 32 from entering the sampling bottle body 32 when the sampling bottle body 32 enters the surface water; when the sampling bottle body 32 moves to the specified position, the floating plug 36 moves to the inside of the fixed bottle plug 31 under the action of the water buoyancy and under the restriction of the sampling bottle body 32, and the floating plug 36 can drive the top plate 398 to move together when it moves, and the top plate 398 pushes the pressure plate 39 through the square through groove 399 When the pressing plate 397 rotates, it contacts with the strip plate 395 and drives the strip plate 395 to rotate. When the strip plate 395 rotates, it can drive the connecting rod 394 to rotate together. When the connecting rod 394 rotates under the restriction of the rotating shaft 393, it can drive the moving rod 392 to move together. When the connecting rod 394 moves, it can drive the block 390 to move together, so that the block 390 moves out of the card slot 391, so that the sliding rod 20 moves downward under the action of gravity. When the sliding rod 20 moves, it can drive the sampling bottle body 32 to move together, so that the sampling bottle body 32 can slide down at a specified depth, so that the sample can enter the sampling bottle body 32 from the sampling bottle mouth 310 and the bottom, so that the columnar water sample of petroleum groundwater at a specified depth can be collected.

[0059] Step 3: After the sample collection is completed, the cooperation between the sealing ring 35 and the sealing seat 33 is used to improve the sealing performance between the sampling bottle body 32 and the sampling bottle base 34, so that after the sampling bottle body 32 is filled with the sample, the sample in the sampling bottle body 32 will not flow out from the bottom of the sampling bottle body 32; and when the sampling bottle body 32 moves downward, it can drive the U-shaped block 48 to move together. When the U-shaped plate moves, it can contact the extension rod 46 and drive the extension rod 46 to move downward together. When the extension rod 46 moves, it can drive the rack 430 connected to it to move under the restriction of the bar-shaped block 43. When the rack 430 moves, it can drive the gear 432 to rotate together. When the gear 432 rotates, it can drive another rack 430 to move in the opposite direction. When the other rack 430 moves in the opposite direction, it can drive the L-shaped connecting rod 44 to move together. When the L-shaped connecting rod 44 moves, it can drive the pressing ring 42 to move upward, so that the spring piece 40 bounces up and the anti-slip pad 41 contacts the sampling bottle body 32 to prevent the sampling bottle body 32 from moving, further realizing that after the sampling bottle body 32 is filled with the sample, the sample in the sampling bottle body 32 will not flow out from the bottom of the sampling bottle body 32; at the same time, when the floating plug 36 moves, it can drive the guide rod 37 to move together. By observing the height of the guide rod 37 exposed from the top cover 11, the amount of the sample collected in the sampling bottle body 32 can be known.

[0060] Step 4: After the sample collection is completed, after pulling the sampling bottle body 32 out of the water surface by the rope, the sampling bottle body 32 can be removed from the device together with the sampling bottle base 34 by rotating the sampling bottle body 32, which is convenient for the operator to transfer the sample to the analysis room.

[0061] Step 5: Extract the sample. First, place the sample bottle on the platform, press down the extractor to cover the sample bottle, then the extractant aspirator quantitatively inhales the extractant, quantitatively adds the extractant, starts stirring, fully mixes, after the stirring is completed, let the sample stand still. After standing and separating, start the peristaltic pump to discharge most of the water as waste. Then switch the pipeline, and a small amount of remaining water and the extraction phase in the container all pass through the separation membrane. The water is directly discharged as waste, and the extraction phase enters the magnesium silicate column. Finally, after passing through the magnesium silicate column, it flows into the colorimetric cell, and the sample can be directly analyzed.

[0062] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A surface water petroleum sampler, comprising a support base (1), characterized in that: A plurality of support rods (10) are evenly arranged along the circumference of the support base (1), a top cover (11) is arranged between the support rods (10), a rope hook hole (12) is opened at the top of each support rod (10), a locking mechanism (2) is slidably arranged on the support rod (10), and a sampling mechanism (3) is arranged on the support rod (10); The locking mechanism (2) comprises a sliding rod (20) slidably sleeved on a support rod (10), wherein a hinge (21) is symmetrically sleeved on one of the sliding rods (20), and a fixing clip (22) is symmetrically arranged on the outer wall of the hinge (21).

2. A surface water petroleum water sampler according to claim 1, characterized in that: The locking mechanism (2) further comprises a rubber pad (23) arranged on the inner wall of the fixing clip (22); a square plate (24) is arranged on the outer wall of the fixing clip (22); in addition, a connecting block (25) is sleeved on the sliding rod (20); a spring (26) is arranged between the connecting block (25) and the square plate (24); a locking plate (27) is arranged on the side of the fixing clip (22) away from the hinge (21); and a locking bolt (28) is arranged between the locking plates (27) through threaded cooperation.

3. A surface water petroleum sampler according to claim 2, characterized in that: The sampling mechanism (3) comprises a glass cover (30) arranged at the bottom of the top cover (11), a plurality of exhaust holes (301) are evenly arranged along the circumference of the glass cover (30) and the top cover (11), a fixed bottle plug (31) is arranged at the bottom of the glass cover (30), a sampling bottle mouth (310) is arranged on the fixed bottle plug (31) in cooperation with a sliding sleeve, and a sampling bottle body (32) located between the fixed cassettes (22) is arranged at the bottom of the sampling bottle mouth (310).

4. A surface water petroleum water sampler according to claim 3, characterized in that: The sampling mechanism (3) further comprises a sealing seat (33) arranged at the bottom of the sampling bottle body (32); a sampling bottle base (34) is arranged at the top of the support base (1) by threaded engagement; a sealing ring (35) engaging with the sealing seat (33) is arranged at the top of the sampling bottle base (34); a floating plug (36) is slidably arranged at the bottom of the sampling bottle body (32); a guide rod (37) is arranged at the top of the floating plug (36); and the guide rod (37) passes through the glass cover (30) and the top cover (11) and extends upward; a limiting rod (38) is arranged at the top of the guide rod (37); and an unlocking unit (39) is arranged at the top of the top cover (11).

5. A surface water petroleum sampler according to claim 4, characterized in that: The unlocking unit (39) comprises a block (390) arranged on the outer wall of the sliding rod (20); the sliding rod (20) is provided with a slot (391) cooperating with the block (390); the block (390) is symmetrically provided with a moving rod (392); the support rod (10) is symmetrically provided with a rotating shaft (393) located above the block (390); the rotating shaft (393) and the moving rod (392) are connected by a connecting rod (394), and the connecting rod (394) is rotatably sleeved on the rotating shaft (393).

6. A surface water petroleum sampler according to claim 5, characterized in that: The unlocking unit (39) further includes a strip plate (395) disposed on one side of the top of the connecting rod (394) away from the latch block (390) and above the top cover (11). A second spring (396) is provided between the strip plate (395) and the top cover (11). A plurality of pressing plates (397) are rotatably arranged circumferentially on the top cover (11) above the strip plate (395). A plurality of top plates (398) are evenly arranged circumferentially on the top of the floating plug (36) below the pressing plates (397). Square through slots (399) for the top to move are formed in the top cover (11) and the glass cover (30).

7. A surface water petroleum sampler according to claim 4, characterized in that: A fixing mechanism (4) is provided on the top of the sampling bottle base (34). The fixing mechanism (4) includes a plurality of spring pieces (40) evenly arranged circumferentially on the top of the sampling bottle base (34). An anti-slip pad (41) is provided on one side of the top of the spring piece (40) close to the sealing ring (35). An extrusion ring (42) is slidably arranged on the top of the spring piece (40).

8. A surface water petroleum sampler according to claim 7, characterized in that: The fixing mechanism (4) further includes a plurality of strip blocks (43) symmetrically and evenly arranged circumferentially on the top of the sampling bottle base (34). A rack (430) is slidably arranged in an alternating manner on the symmetric strip blocks (43). A moving track (431) for the rack (430) to slide is formed in the strip block (43). A gear (432) is rotatably engaged between the racks (430) through a bracket.

9. A surface water petroleum sampler according to claim 8, characterized in that: The fixing mechanism (4) further includes that one of the racks (430) is connected to the extrusion ring (42) through an L-shaped connecting rod (44). A first limiting groove (45) for the L-shaped connecting rod (44) to slide is formed in the corresponding strip block (43). An extension rod (46) penetrates through the strip block (43) on the front side of the other rack (430). A second limiting groove (47) for the extension rod (46) to slide is formed in the corresponding strip block (43). A U-shaped block (48) is arranged circumferentially on the sampling bottle body (32) above the extension rod (46).

10. The surface water petroleum sampler according to claim 3, characterized in that: Scale lines (5) are engraved on the sampling bottle body (32).

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