Petroleum sampling device with quantitative sampling function

Abstract

The invention relates to the technical field of petroleum sampling devices, in particular to a petroleum sampling device with a quantitative sampling function, which comprises an annular shell, a plurality of fixing plates are fixedly connected to the side surface of the annular shell in an annular array, and the lower ends of the plurality of fixing plates are jointly and fixedly connected with a balancing weight. L-shaped connecting plates are fixedly connected to the upper end of the annular shell in a bilateral symmetry mode, hanging rings are fixedly connected to the outer side faces of the two L-shaped connecting plates, pull ropes are fixedly connected to the hanging rings, and suspension balls are fixedly connected to the upper ends of the pull ropes. An upper pressing ring at the upper end of the corrugated pipe is in sealed contact with the lower end of the supporting plate, and the supporting plate and the corrugated pipe are matched, so that when the sampling bottle sinks downwards along water, external water is prevented from flowing into the bottle along the bottle opening of the sampling bottle, and the sampling accuracy is prevented from being influenced.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum sampling devices, in particular to a petroleum sampling device with a quantitative sampling function. Background Art

[0002] Petroleum substances are a complex mixture mainly composed of hydrocarbon substances. Petroleum substances exist in water mainly in five states: floating oil, dispersed oil, emulsified oil, dissolved oil and oil solids. Petroleum substances have been included in my country's hazardous waste list. When the content in water exceeds 0.1 mg / L, it will cause water hypoxia; when the content exceeds 3 mg / L, it will inhibit the self-purification ability of the water. Therefore, the monitoring of petroleum pollution sources in water quality is of great significance to the protection of the ecological environment.

[0003] The collection of water samples is an important part of oil water sample monitoring. When sampling, be careful not to fill the bottle to prevent the oil floating on the water surface from overflowing and affecting the accuracy of sampling. However, it is difficult for the existing sampling device to accurately control the opening and closing time of the sampler cover during the actual sampling process, and the sampling volume accuracy is poor; and the existing sampling device cannot quantitatively sample, resulting in too much or too little water sampling, which cannot meet the sampling requirements, reducing the efficiency and accuracy of water sampling. Summary of the invention

[0004] The object of the present invention is to provide a petroleum sampling device with a quantitative sampling function to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A petroleum sampling device with quantitative sampling function, comprising an annular shell, the side surface of the annular shell is fixedly connected with a plurality of fixing plates in an annular array, the lower ends of the plurality of fixing plates are fixedly connected to a counterweight block, the upper end of the annular shell is symmetrically fixedly connected with an L-shaped connecting plate, the outer sides of the two L-shaped connecting plates are fixedly connected with hanging rings, the hanging rings are fixedly connected with a pull rope, and the upper end of the pull rope is fixedly connected with a suspension ball, a sampling bottle is installed in the annular shell, the side surface of the upper end of the sampling bottle is protrudingly provided with an annular connecting part, and locking mechanisms are symmetrically installed on the left and right sides of the sampling bottle, the lower ends of the two locking mechanisms are respectively fixedly connected to the upper ends of the two L-shaped connecting plates, an upper end of the locking mechanism is installed with an up and down adjustment mechanism, the lower end of the up and down adjustment mechanism extends to the inner cavity of the sampling bottle, the lower end of the up and down adjustment mechanism is connected with a circular seat, the outer side of the circular seat is fixedly sleeved with an annular connecting ring, and a sealing mechanism for sealing the circular seat is installed on the up and down adjustment mechanism.

[0006] Preferably, the locking mechanism includes a horizontal plate detachably mounted on the upper end of the L-shaped connecting plate, the top of the horizontal plate close to one end of the sampling bottle is fixedly connected with a fixing block, the side of the fixing block close to the sampling bottle is recessed inwardly and has a contraction groove, the side of the fixing block away from the sampling bottle is fixedly inserted with a fixing screw sleeve, the inner side of the fixing screw sleeve is provided with a locking bolt, one end of the locking bolt extends into the contraction groove, the end of the locking bolt in the contraction groove is rotatably connected to the block through a pin shaft, the end of the locking bolt is fixedly connected with a pin shaft, the pin shaft is rotatably connected to the block, the side of the block close to the sampling bottle is curved, and a fan-shaped groove is provided on one side of the curved surface of the block.

[0007] Preferably, the locking bolt is threadedly connected to the fixing nut, the clamping block is slidably connected to the shrinkage groove, and the fan-shaped clamping groove is clamped to the annular connecting part.

[0008] Preferably, the up-and-down adjustment mechanism comprises a support plate arranged above the two locking mechanisms, the upper end of the support plate is provided with a rotation slot extending from top to bottom, the lower end of the support plate is fixedly connected with a vertical plate symmetrically on the left and right, the lower end of the vertical plate is fixedly connected with the upper end of the fixed block, the upper end of the support plate is fixedly connected with a concave frame, and the upper end of the support plate is fixedly connected with a plurality of guide rods symmetrically on the inner side of the concave frame;

[0009] A rotating threaded sleeve is rotatably installed in the rotating groove, the upper end of the rotating threaded sleeve extends upward to the top of the rotating groove and is fixedly sleeved with a gear ring, the lower end of the rotating threaded sleeve extends downward to the bottom of the rotating groove and is fixedly sleeved with a limiting ring, a lifting screw is penetrated and installed in the rotating threaded sleeve, a circular hole is penetrated from top to bottom at the upper end of the lifting screw, the upper end of the lifting screw is fixedly connected to a guide plate, the lower end of the lifting screw is symmetrically fixedly connected to a positioning plate, the lower end of the positioning plate is fixedly connected to the upper end of the circular seat, and the upper end of the support plate is provided with a locking mechanism on the side of the gear ring.

[0010] Preferably, the gear ring and the limit ring are symmetrically distributed on the upper and lower sides of the support plate, the gear ring and the limit ring are in rotational contact with the support plate, the guide plate is sleeved on a plurality of guide rods, and the guide plate is slidably connected to the guide rods up and down.

[0011] Preferably, the locking mechanism includes a concave plate fixedly connected to the upper end of the supporting plate, a U-shaped rod is inserted through the side surface of the concave plate, two ends of the U-shaped rod extend to the inner side of the concave plate, and two ends of the U-shaped rod are sleeved with locking springs, and the two ends of the U-shaped rod are fixedly connected to the side surface of the locking tooth block, and the side of the locking tooth block with teeth is clamped with the gear ring, the locking tooth block is slidably connected to the two inner side walls of the concave plate, and the two ends of the locking spring are respectively abutted against the locking tooth block and the concave plate.

[0012] Preferably, the sealing mechanism includes a circular tube that passes through and is inserted in the circular hole from top to bottom, the lower end of the circular tube extends downward to the inner cavity of the sampling bottle, the lower end of the circular tube is fixedly connected to a transmission ring, the lower end of the transmission ring is symmetrically fixedly connected to a fan-shaped plate, the lower end of the fan-shaped plate is fixedly connected to a conical plug, the upper end of the circular tube upwardly passes through the upper end of the concave frame and is fixedly sleeved with an annular seat, an annular plate and an upward push spring are sequentially sleeved on the circular tube from top to bottom, the annular plate is fixedly connected to the circular tube, the upper and lower ends of the upward push spring are respectively abutted against the annular plate and the guide plate, the upper end of the conical plug is installed with a water volume indicating mechanism, a sealing mechanism is sleeved on the bottle mouth of the sampling bottle, and the lower end of the sealing mechanism is connected to the transmission ring.

[0013] Preferably, the circular tube is slidably connected to the circular hole up and down, a conical groove is formed through the lower end of the circular seat upward, and the conical plug is clamped in the conical groove.

[0014] Preferably, the water volume indicating mechanism includes an indicating float ball arranged at the upper end of the conical plug, the indicating float ball is arranged between two fan-shaped plates, the upper end of the indicating float ball is fixedly connected to a float rod, and the upper end of the float rod passes through the inner cavity of the circular tube from bottom to top and extends to the outside.

[0015] Preferably, the sealing mechanism includes a bellows sleeved on the upper end of the sampling bottle, the upper end of the bellows is fixedly connected to an upper pressure ring, the upper end of the upper pressure ring is tightly fitted with the lower end of the support plate, the lower end of the upper pressure ring is symmetrically fixedly connected to an L-shaped transmission plate in the inner cavity of the bellows, the lower end of the L-shaped transmission plate extends downward to the inner cavity of the sampling bottle and is fixedly connected to the upper end of the transmission ring.

[0016] Compared with the prior art, the invention has the following advantages:

[0017] 1. Put the sampling bottle into the water to be sampled. At this time, the lower end of the bellows is sleeved on the upper end of the sampling bottle, and the upper pressure ring on the upper end of the bellows is in sealing contact with the lower end of the support plate. The support plate and the bellows cooperate to prevent the external water from flowing into the bottle along the bottle mouth of the sampling bottle when the sampling bottle sinks downward along the water, thereby avoiding affecting the accuracy of sampling.

[0018] 2. When the sampling bottle sinks to the position to be sampled, push the sealing mechanism downward to move the conical plug downward from the conical groove. When the conical plug moves downward, the indicating float and the float rod will move downward synchronously with the conical plug, so that the conical groove on the round seat opens. When the transmission ring moves downward, it drives the L-shaped transmission plate to move downward synchronously, so that the bellows, the upper pressure ring and the support plate are separated. At this time, the external water can flow inward along the upper end of the bellows, and the water flows into the bottle along the bellows and the end of the sampling bottle. The water flows along the conical groove to the bottom of the inner cavity of the sampling bottle and gathers, thereby realizing the sampling of water.

[0019] 3. Water is continuously poured into the sampling bottle, and the water level in the inner cavity of the sampling bottle rises slowly. At this time, the indicating float will move upward synchronously under the action of buoyancy, and the indicating float drives the float rod to move upward along the inner cavity of the round tube, so that the upper end of the float rod moves upward, thereby telling the staff that the amount of water poured into the sampling bottle is about to reach the demand; at this time, release the pressure on the sealing mechanism to make the conical plug engage with the conical groove, thereby sealing the conical groove. At this time, water cannot flow downward along the conical groove, and the water below the annular connecting ring in the inner cavity of the sampling bottle will not overflow upward.

[0020] 4. The water volume indicating mechanism can accurately know the water volume in the sampling bottle, and then complete the quantitative sampling. The sealing mechanism can timely seal the conical groove on the circular seat to prevent water from overflowing upward along the conical groove, thereby preventing the petroleum floating on the water surface in the sampled water from overflowing, thus ensuring the accuracy of sampling.

[0021] 5. When it is necessary to adjust the amount of sampled water, separate the locking tooth block from the gear ring, and drive the sealing mechanism, the circular seat, and the annular connecting ring to move up and down synchronously through the up and down adjustment mechanism. The circular seat and the annular connecting ring move up and down along the inner cavity of the sampling bottle, thereby adjusting the position of the circular seat and the annular connecting ring in the inner cavity of the sampling bottle, thereby achieving the adjustment of the water sampling amount of the sampling bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of a petroleum sampling device with a quantitative sampling function of the present invention;

[0023] Figure 2 It is a partial structural cross-sectional view of the petroleum sampling device with quantitative sampling function of the present invention;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 4 It is a side cross-sectional view of the structure of the petroleum sampling device with quantitative sampling function of the present invention;

[0026] Figure 5 It is a cross-sectional view of the structure of the tapered groove in an open state after the blocking mechanism of the present invention is separated from the circular seat;

[0027] Figure 6 for Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 7 for Figure 5 The intention of the structure enlargement at C in the middle;

[0029] Figure 8It is a cross-sectional view of the sampling bottle, the up and down adjustment mechanism and the blocking mechanism of the present invention;

[0030] Fig. 9 This is an exploded view of the sampling bottle and the locking mechanism structure of the present invention;

[0031] Fig.10 It is an exploded view of the structure of the up and down adjustment mechanism, the circular seat, the annular connecting ring and the locking mechanism of the present invention;

[0032] Fig.11 It is an exploded view of the sampling bottle, the up and down adjustment mechanism, the blocking mechanism and the water volume indicating mechanism of the present invention.

[0033] In the figure: 1, annular shell; 11, counterweight; 12, L-shaped connecting plate; 13, pull rope; 14, suspension ball; 2, sampling bottle; 21, annular connecting part; 3, horizontal plate; 31, fixed block; 32, contraction groove; 33, fixed screw sleeve; 34, locking bolt; 35, clamping block; 36, fan-shaped clamping groove; 4, support plate; 41, rotating groove; 42, vertical plate; 43, concave frame; 44, guide rod; 5, rotating thread sleeve; 51, gear ring; 52, limit ring; 53, Lifting screw; 54, circular hole; 55, guide plate; 56, positioning plate; 57, circular seat; 58, tapered groove; 59, annular connecting ring; 6, concave plate; 61, U-shaped rod; 62, locking spring; 63, locking gear block; 7, round tube; 71, transmission ring; 72, fan-shaped plate; 73, tapered plug; 74, annular seat; 75, annular plate; 76, push-up spring; 8, indicating float; 81, floating rod; 9, bellows; 91, upper pressure ring; 92, L-shaped transmission plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 11The present invention provides a technical solution: a petroleum sampling device with a quantitative sampling function, comprising an annular shell 1, a plurality of fixing plates are fixedly connected to the side of the annular shell 1 in an annular array, the lower ends of the plurality of fixing plates are fixedly connected to a counterweight 11, an L-shaped connecting plate 12 is fixedly connected to the upper end of the annular shell 1 symmetrically, the outer sides of the two L-shaped connecting plates 12 are fixedly connected to a lifting ring, a pull rope 13 is fixedly connected to the lifting ring, the pull rope 13 can be replaced by a chain, etc., a suspension ball 14 is fixedly connected to the upper end of the pull rope 13, a sampling bottle 2 is installed in the annular shell 1, a ring-shaped connecting portion 21 is protruded from the side of the upper end of the sampling bottle 2, locking mechanisms are symmetrically installed on the left and right sides of the sampling bottle 2, and the lower ends of the two locking mechanisms are respectively connected to the two The upper end of an L-shaped connecting plate 12 is fixedly connected, and an upper and lower adjusting mechanism is installed on the upper end of the locking mechanism. The lower end of the upper and lower adjusting mechanism extends to the inner cavity of the sampling bottle 2, and the lower end of the upper and lower adjusting mechanism is connected to a circular seat 57. An annular connecting ring 59 is fixedly sleeved on the outer side of the circular seat 57. The annular connecting ring 59 is an annular corrugated plate. The outer side of the annular connecting ring 59 abuts against the inner wall of the sampling bottle 2. The annular connecting ring 59 is made of rubber. The diameter of the circular seat 57 is smaller than the diameter of the bottle mouth of the sampling bottle 2, so that the circular seat 57 and the annular connecting ring 59 can be inserted or pulled out along the bottle mouth. The annular connecting ring 59 will be squeezed and deformed during the insertion and removal process along the bottle mouth, and then automatically recover. A sealing mechanism for sealing the circular seat 57 is installed on the upper and lower adjusting mechanism.

[0036] See also Figure 2 , Figure 3 , Fig. 9 and Fig.10 The locking mechanism includes a transverse plate 3 detachably mounted on the upper end of the L-shaped connecting plate 12, and the transverse plate 3 and the L-shaped connecting plate 12 can be arranged to be connected by screws or clamping, etc., and a fixing block 31 is fixedly connected to the top of the transverse plate 3 near one end of the sampling bottle 2, and the fixing block 31 is recessed inwardly on the side near the sampling bottle 2 to open a contraction groove 32, and a fixing screw sleeve 33 is fixedly inserted on the side of the fixing block 31 away from the sampling bottle 2, and one end of the fixing screw sleeve 33 extends into the contraction groove 32, and a locking bolt 34 is installed on the inner side of the fixing screw sleeve 33, and one end of the locking bolt 34 extends into the contraction groove 32, and the end of the locking bolt 34 in the contraction groove 32 is rotatably connected to the block 35 through a pin shaft, and the end of the locking bolt 34 is fixedly connected with a pin shaft, and the pin shaft is rotatably connected to the block 35, and the block 35 is curved on the side near the sampling bottle 2, and a fan-shaped card groove 36 is opened on one side of the curved surface of the block 35.

[0037] The locking bolt 34 is threadedly connected to the fixing screw sleeve 33 , the clamping block 35 is slidably connected to the contraction groove 32 , and the fan-shaped clamping groove 36 is clamped to the annular connecting portion 21 .

[0038] The end of the sampling bottle 2 is located between the two locking mechanisms. When the sampling bottle 2 is fixed, the sampling bottle 2 is first installed in the annular housing 1, and at this time, the bottom of the sampling bottle 2 contacts the upper end of the counterweight 11;

[0039] By rotating the locking bolt 34, the locking bolt 34 rotates along the fixing screw sleeve 33, so that the fixing screw sleeve 33 moves into the contraction groove 32. At the same time, the locking bolt 34 drives the clamping block 35 to approach the annular connecting portion 21 at the upper end of the sampling bottle 2 until the fan-shaped clamping groove 36 of the clamping block 35 is clamped with the annular connecting portion 21. The annular connecting portion 21 is locked by the cooperation of the two clamping blocks 35 in the two locking mechanisms, thereby completing the locking of the sampling bottle 2.

[0040] By rotating the locking bolt 34 in the opposite direction, the clamping block 35 is moved away from the annular connecting portion 21 , so that the locking mechanism releases the lock on the sampling bottle 2 .

[0041] See also Figure 2 , Figures 4 to 6 , Fig.10 , Fig.11 The up-down adjustment mechanism includes a support plate 4 arranged above the two locking mechanisms, a rotation slot 41 is formed through the upper end of the support plate 4 from top to bottom, a vertical plate 42 is fixedly connected to the lower end of the support plate 4 symmetrically, the lower end of the vertical plate 42 is fixedly connected to the upper end of the fixed block 31, a concave frame 43 is fixedly connected to the upper end of the support plate 4, and a plurality of guide rods 44 are fixedly connected to the upper end of the support plate 4 symmetrically on the inner side of the concave frame 43;

[0042] A rotating threaded sleeve 5 is rotatably installed in the rotating groove 41, the upper end of the rotating threaded sleeve 5 extends upward to the top of the rotating groove 41 and is fixedly sleeved with a gear ring 51, the lower end of the rotating threaded sleeve 5 extends downward to the bottom of the rotating groove 41 and is fixedly sleeved with a limit ring 52, a lifting screw 53 is installed through the rotating threaded sleeve 5, the lifting screw 53 is threadedly connected to the rotating threaded sleeve 5, a circular hole 54 is penetrated from top to bottom at the upper end of the lifting screw 53, a guide plate 55 is fixedly connected to the upper end of the lifting screw 53, a circular hole is penetrated from top to bottom at the upper end of the guide plate 55, the inner diameter of the circular hole is the same as that of the circular hole 54, and the circular hole and the circular hole 54 are aligned up and down, the lower end of the lifting screw 53 is symmetrically fixedly connected with a positioning plate 56, the lower end of the positioning plate 56 is fixedly connected to the upper end of the circular seat 57, and a locking mechanism is installed on the side of the gear ring 51 at the upper end of the support plate 4.

[0043] The gear ring 51 and the limit ring 52 are symmetrically distributed on the upper and lower sides of the support plate 4. The gear ring 51 and the limit ring 52 are both in rotational contact with the support plate 4. The guide plate 55 is sleeved on multiple guide rods 44, and the guide plate 55 is slidably connected to the guide rods 44 up and down.

[0044] The rotating gear ring 51 drives the rotating thread sleeve 5 to rotate along the rotating groove 41 , and the rotating thread sleeve 5 drives the limiting ring 52 to rotate synchronously when rotating. The gear ring 51 and the limiting ring 52 cooperate to enable the rotating thread sleeve 5 to stably rotate along the rotating groove 41 .

[0045] The rotating threaded sleeve 5 rotates along the lifting screw 53. The lifting screw 53 is moved up and down by rotating the rotating threaded sleeve 5 forward or reversely. When the lifting screw 53 moves up and down, the guide plate 55 is driven to slide up and down along the guide rod 44. The guide plate 55 cooperates with the guide rod 44, so that the lifting screw 53 can only move up and down and cannot rotate with the rotating threaded sleeve 5.

[0046] When the lifting screw 53 moves up and down, it drives the positioning plate 56 to move up and down, the positioning plate 56 drives the circular seat 57 to move up and down, and the circular seat 57 drives the annular connecting ring 59 to move up and down along the inner cavity of the sampling bottle 2, thereby adjusting the position of the circular seat 57 and the annular connecting ring 59 in the inner cavity of the sampling bottle 2, and then realizing the adjustment of the water sampling amount of the sampling bottle 2. The setting of the annular connecting ring 59 enables the sampling bottle 2 to achieve quantitative sampling.

[0047] See also Figure 6 and Fig.10 The locking mechanism includes a concave plate 6 fixedly connected to the upper end of the support plate 4, a U-shaped rod 61 is inserted through the side of the concave plate 6, the U-shaped rod 61 is slidably connected to the concave plate 6, the two ends of the U-shaped rod 61 extend to the inner side of the concave plate 6, and the two ends of the U-shaped rod 61 are sleeved with locking springs 62, the two ends of the U-shaped rod 61 are fixedly connected to the side of the locking tooth block 63, the side of the locking tooth block 63 with teeth is clamped with the gear ring 51, the locking tooth block 63 is slidably connected to the two inner side walls of the concave plate 6, the two ends of the locking spring 62 are respectively abutted against the locking tooth block 63 and the concave plate 6, and the locking spring 62 applies an elastic force to the locking tooth block 63.

[0048] When the gear ring 51 needs to be rotated, the U-shaped rod 61 is pulled outward along the concave plate 6, so that the U-shaped rod 61 drives the locking tooth block 63 to slide toward the inner cavity of the concave plate 6, so that the locking tooth block 63 is separated from the gear ring 51, and the locking tooth block 63 squeezes the locking spring 62, so that the gear ring 51 can be rotated at will;

[0049] When the gear ring 51 needs to be locked, the U-shaped rod 61 is loosened, and the locking tooth block 63 can be firmly engaged with the gear ring 51 under the action of the elastic force of the locking spring 62 .

[0050] See also Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig.11The sealing mechanism includes a round tube 7 that passes through the circular hole 54 from top to bottom, the lower end of the round tube 7 extends downward to the inner cavity of the sampling bottle 2, the lower end of the round tube 7 is fixedly connected to a transmission ring 71, the lower end of the transmission ring 71 is symmetrically fixedly connected to a fan-shaped plate 72, the lower end of the fan-shaped plate 72 is fixedly connected to a conical plug 73, the upper end of the round tube 7 passes through the upper end of the concave frame 43 upward and is fixedly sleeved with an annular seat 74, the round tube 7 is sleeved with an annular plate 75 and an upward push spring 76 from top to bottom in sequence, the annular plate 75 is fixedly connected to the round tube 7, the upper and lower ends of the upward push spring 76 are respectively abutted against the annular plate 75 and the guide plate 55, the upper end of the conical plug 73 is installed with a water amount indicating mechanism, the bottle mouth of the sampling bottle 2 is sleeved with a sealing mechanism, and the lower end of the sealing mechanism is connected to the transmission ring 71.

[0051] The circular tube 7 is slidably connected to the circular hole 54 up and down. A conical groove 58 is formed through the lower end of the circular seat 57 upward. The conical plug 73 is engaged with the conical groove 58 to seal the conical groove 58 .

[0052] The push-up spring 76 applies an upward elastic force to the annular plate 75 , and the circular tube 7 is connected to the upper end of the concave frame 43 by sliding up and down.

[0053] When it is necessary to fill the sampling bottle 2 with sampling water, the annular seat 74 is pressed downward, and the annular seat 74 drives the circular tube 7 to slide downward along the circular hole 54, and the circular tube 7 drives the annular plate 75 to move downward, and the annular plate 75 squeezes the push-up spring 76;

[0054] The circular tube 7 drives the fan-shaped plate 72 to move downward through the transmission ring 71, and the fan-shaped plate 72 drives the conical plug 73 to move downward, so that the conical plug 73 moves downward out of the conical groove 58. At this time, the external water will flow into the bottle along the bottle mouth of the sampling bottle 2, and the water will flow along the conical groove 58 to the bottom of the inner cavity of the sampling bottle 2 and gather.

[0055] The staff can calculate the time it takes for water to flow downward along the conical groove 58, thereby estimating the amount of water poured into the sampling bottle 2; when the amount of water in the sampling bottle 2 reaches the required amount, the conical groove 58 needs to be sealed, and the pressure on the annular seat 74 is released. Under the action of the elastic force of the push-up spring 76, the annular plate 75 is pushed upward, and the annular plate 75 drives the circular tube 7 upward. The circular tube 7 drives the fan plate 72 upward through the transmission ring 71, and the fan plate 72 drives the conical plug 73 upward, so that the conical plug 73 is engaged with the conical groove 58, thereby sealing the conical groove 58. At this time, water cannot flow downward along the conical groove 58.

[0056] See also Figure 7 , Figure 8 and Fig.11The water volume indicating mechanism includes an indicating float 8 arranged at the upper end of the conical plug 73, the indicating float 8 is arranged between the two fan-shaped plates 72, the upper end of the indicating float 8 is fixedly connected to a floating rod 81, and the upper end of the floating rod 81 penetrates the inner cavity of the circular tube 7 from bottom to top and extends to the outside.

[0057] When the conical plug 73 moves downward, the indicator float 8 and the floating rod 81 will move downward synchronously with the conical plug 73. When water is poured into the bottle cavity of the sampling bottle 2, the upper end surface of the water in the sampling bottle 2 slowly rises. When the upper end surface of the water in the sampling bottle 2 contacts the indicator float 8, the indicator float 8 will always float on the water surface. When the water surface continues to rise, the indicator float 8 will move upward synchronously under the action of buoyancy. The indicator float 8 drives the floating rod 81 to move upward along the inner cavity of the circular tube 7, so that the upper end of the floating rod 81 moves upward, thereby telling the staff that the amount of water poured into the sampling bottle 2 is about to reach the demand.

[0058] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 The sealing mechanism includes a bellows 9 which is sleeved on the upper end of the sampling bottle 2. The upper end of the bellows 9 is fixedly connected to an upper pressure ring 91. The upper end of the upper pressure ring 91 is tightly fitted with the lower end of the support plate 4. The lower end of the upper pressure ring 91 is symmetrically fixedly connected to an L-shaped transmission plate 92 in the inner cavity of the bellows 9. The lower end of the L-shaped transmission plate 92 extends downward to the inner cavity of the sampling bottle 2 and is fixedly connected to the upper end of the transmission ring 71.

[0059] In the initial state, the lower end of the bellows 9 is sleeved on the upper end of the sampling bottle 2, and the lower end of the bellows 9 is sealed and connected to the upper end of the sampling bottle 2, the inner cavity of the bellows 9 is connected to the inner cavity of the sampling bottle 2, and the upper pressure ring 91 at the upper end of the bellows 9 is in sealing contact with the lower end of the support plate 4; by cooperating with the support plate 4 and the bellows 9, the external water is prevented from flowing into the bottle along the bottle mouth of the sampling bottle 2 when the sampling bottle 2 sinks downward along the water.

[0060] When the sampling bottle 2 descends to the sampling position in the water, the sealing mechanism is moved downward. The transmission ring 71 in the sealing mechanism moves downward, driving the L-shaped transmission plate 92 to move downward synchronously. The L-shaped transmission plate 92 drives the upper pressure ring 91 to move downward. The upper pressure ring 91 drives the upper end of the bellows 9 to move downward, so that the bellows 9 is folded. At the same time, the upper pressure ring 91 is separated from the support plate 4. At this time, the external water can flow inward along the upper end of the bellows 9, and the water flows into the bottle along the bellows 9 and the end of the sampling bottle 2.

[0061] Working principle: put the sampling bottle 2 into the water to be sampled, at this time, the lower end of the bellows 9 is sleeved on the upper end of the sampling bottle 2, and the upper pressure ring 91 at the upper end of the bellows 9 is in sealing contact with the lower end of the support plate 4. The support plate 4 and the bellows 9 cooperate to prevent the external water from flowing into the bottle along the bottle mouth of the sampling bottle 2 when the sampling bottle 2 sinks downward along the water, so as to avoid affecting the accuracy of sampling;

[0062] When the sampling bottle 2 sinks to the position to be sampled, the concave frame 43 is held by hand to press the annular seat 74 downward, and the annular seat 74 drives the circular tube 7 to slide downward along the circular hole 54, and the circular tube 7 drives the annular plate 75 to move downward, and the annular plate 75 squeezes the push-up spring 76, and the circular tube 7 drives the conical plug 73 to move downward through the transmission ring 71 and the fan-shaped plate 72, so that the conical plug 73 moves downward out of the conical groove 58. When the conical plug 73 moves downward, the indicating float 8 and the floating rod 81 will move downward synchronously with the conical plug 73, so that the conical groove 58 on the circular seat 57 is opened;

[0063] When the transmission ring 71 moves downward, it drives the L-shaped transmission plate 92 to move downward synchronously. The L-shaped transmission plate 92 drives the upper end of the bellows 9 to move downward through the upper pressure ring 91, so that the bellows 9, the upper pressure ring 91 and the support plate 4 are separated. At this time, the external water can flow inward along the upper end of the bellows 9, and the water flows into the bottle along the bellows 9 and the end of the sampling bottle 2. The water flows along the conical groove 58 to the bottom of the inner cavity of the sampling bottle 2 and gathers, thereby realizing the sampling of water.

[0064] Water is continuously poured into the sampling bottle 2, and the water level in the inner cavity of the sampling bottle 2 rises slowly. When the upper end surface of the water in the sampling bottle 2 contacts the indicating float 8, the indicating float 8 will always float on the water surface. When the water surface continues to rise, the indicating float 8 will move upward synchronously under the action of buoyancy, and the indicating float 8 drives the floating rod 81 to move upward along the inner cavity of the circular tube 7, so that the upper end of the floating rod 81 moves upward, thereby telling the staff that the amount of water poured into the sampling bottle 2 is about to reach the required amount.

[0065] At this time, the pressure on the annular seat 74 is released, and the annular plate 75 is pushed upward under the action of the elastic force of the push-up spring 76. The annular plate 75 drives the circular tube 7 upward, and the circular tube 7 drives the conical plug 73 upward through the transmission ring 71 and the fan-shaped plate 72, so that the conical plug 73 is engaged with the conical groove 58, thereby sealing the conical groove 58. At this time, water cannot flow downward along the conical groove 58, and at the same time, the water below the annular connecting ring 59 in the inner cavity of the sampling bottle 2 will not overflow upward.

[0066] The water volume indicating mechanism can accurately know the water volume in the sampling bottle 2, thereby completing quantitative sampling. The sealing mechanism can timely seal the conical groove 58 on the circular seat 57 to prevent water from overflowing upward along the conical groove 58, thereby preventing petroleum floating on the water surface in the sampled water from overflowing, thereby ensuring the accuracy of sampling.

[0067] When the sampled water needs to be taken out from the sampling bottle 2, first separate the lower end of the bellows 9 from the upper end of the sampling bottle 2, and pour out the water above the annular connecting ring 59 in the sampling bottle 2 to prevent it from mixing with the water below the annular connecting ring 59 in the sampling bottle 2 and affecting the sample.

[0068] Then move the blocking mechanism downward to separate the conical plug 73 from the conical groove 58. At this time, slowly tilt the sampling bottle 2 to completely pour out the water in the sampling bottle 2. After the water is removed, the blocking mechanism and the bellows 9 are reset.

[0069] When the amount of water to be sampled needs to be adjusted, the U-shaped rod 61 is pulled outward along the concave plate 6, so that the U-shaped rod 61 drives the locking tooth block 63 to separate from the gear ring 51, and the rotating threaded sleeve 5 is driven to rotate by rotating the gear ring 51, and the rotating threaded sleeve 5 is driven to rotate along the lifting screw 53, and the lifting screw 53 is moved up and down by rotating the rotating threaded sleeve 5 forward or reversely. When the lifting screw 53 moves up and down, it drives the guide plate 55 to slide up and down along the guide rod 44, and the guide plate 55 drives the blocking mechanism to move up and down synchronously through the push-up spring 76, so that the tapered plug 73 always maintains the clamping connection with the tapered groove 58;

[0070] When the lifting screw 53 moves up and down, it drives the positioning plate 56 to move up and down, and the positioning plate 56 drives the circular seat 57 to move up and down, and the circular seat 57 drives the annular connecting ring 59 to move up and down along the inner cavity of the sampling bottle 2, thereby adjusting the position of the circular seat 57 and the annular connecting ring 59 in the inner cavity of the sampling bottle 2, thereby adjusting the water sampling amount of the sampling bottle 2. After the adjustment is completed, the U-shaped rod 61 is loosened, and the locking tooth block 63 can be firmly engaged with the gear ring 51 under the action of the elastic force of the locking spring 62, thereby completing the locking of the gear ring 51, making the rotating threaded sleeve 5 unable to rotate, completing the locking of the up and down adjustment mechanism, and preventing the circular seat 57 and the annular connecting ring 59 from moving up and down.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petroleum sampling device with quantitative sampling function, comprising an annular housing (1), the side of the annular housing (1) being fixedly connected with a plurality of fixing plates in an annular array, the lower ends of the plurality of fixing plates being fixedly connected with a counterweight (11), characterized in that: The upper end of the annular shell (1) is symmetrically fixedly connected to an L-shaped connecting plate (12), the outer sides of the two L-shaped connecting plates (12) are fixedly connected to a hanging ring, a pull rope (13) is fixedly connected to the hanging ring, and the upper end of the pull rope (13) is fixedly connected to a suspension ball (14). A sampling bottle (2) is installed in the annular shell (1), and a circular connecting portion (21) is protruding from the side of the upper end of the sampling bottle (2). Locking mechanisms are symmetrically installed on the left and right sides of the sampling bottle (2), and the lower ends of the two locking mechanisms are respectively fixedly connected to the upper ends of the two L-shaped connecting plates (12). An upper and lower adjustment mechanism is installed at the upper end of the locking mechanism, and the lower end of the upper and lower adjustment mechanism extends to the inner cavity of the sampling bottle (2). The lower end of the upper and lower adjustment mechanism is connected to a circular seat (57), and the outer side of the circular seat (57) is fixedly sleeved with an annular connecting ring (59), and a sealing mechanism for sealing the circular seat (57) is installed on the upper and lower adjustment mechanism.

2. The petroleum sampling device with quantitative sampling function according to claim 1, characterized in that: The locking mechanism comprises a transverse plate (3) detachably mounted on the upper end of the L-shaped connecting plate (12); a fixing block (31) is fixedly connected to the top of the transverse plate (3) near one end of the sampling bottle (2); a side of the fixing block (31) near the sampling bottle (2) is inwardly recessed and has a contraction groove (32); a side of the fixing block (31) away from the sampling bottle (2) is fixedly plugged with a fixing screw sleeve (33); a locking bolt (34) is installed on the inner side of the fixing screw sleeve (33); one end of the locking bolt (34) extends into the contraction groove (32); one end of the locking bolt (34) in the contraction groove (32) is rotatably connected to a clamping block (35) through a pin shaft; an end of the locking bolt (34) is fixedly connected to a pin shaft, and the pin shaft is rotatably connected to the clamping block (35); a side of the clamping block (35) near the sampling bottle (2) is a curved surface, and a fan-shaped clamping groove (36) is provided on one side of the curved surface of the clamping block (35).

3. The petroleum sampling device with quantitative sampling function according to claim 2, characterized in that: The locking bolt (34) is threadedly connected to the fixing screw sleeve (33), the clamping block (35) is slidably connected to the contraction groove (32), and the fan-shaped clamping groove (36) is clamped to the annular connecting portion (21).

4. The petroleum sampling device with quantitative sampling function according to claim 2, characterized in that: The up-and-down adjustment mechanism comprises a support plate (4) arranged above the two locking mechanisms, the upper end of the support plate (4) is provided with a rotation groove (41) penetrating from top to bottom, the lower end of the support plate (4) is fixedly connected to a vertical plate (42) symmetrically on the left and right, the lower end of the vertical plate (42) is fixedly connected to the upper end of the fixed block (31), the upper end of the support plate (4) is fixedly connected to a concave frame (43), and the upper end of the support plate (4) is fixedly connected to a plurality of guide rods (44) symmetrically on the inner side of the concave frame (43); A rotating thread sleeve (5) is rotatably mounted in the rotating groove (41); the upper end of the rotating thread sleeve (5) extends upward to the upper part of the rotating groove (41) and is fixedly sleeved with a gear ring (51); the lower end of the rotating thread sleeve (5) extends downward to the lower part of the rotating groove (41) and is fixedly sleeved with a limit ring (52); a lifting screw rod (53) is penetrated and mounted in the rotating thread sleeve (5); a circular hole (54) is penetrated from top to bottom at the upper end of the lifting screw rod (53); a guide plate (55) is fixedly connected to the upper end of the lifting screw rod (53); a positioning plate (56) is symmetrically fixedly connected to the lower end of the lifting screw rod (53); the lower end of the positioning plate (56) is fixedly connected to the upper end of the circular seat (57); and a locking mechanism is installed at the upper end of the support plate (4) on the side of the gear ring (51).

5. The petroleum sampling device with quantitative sampling function according to claim 4, characterized in that: The gear ring (51) and the limiting ring (52) are symmetrically distributed on the upper and lower sides of the support plate (4); the gear ring (51) and the limiting ring (52) are both in rotational contact with the support plate (4); the guide plate (55) is sleeved on a plurality of guide rods (44), and the guide plate (55) is slidably connected to the guide rods (44) up and down.

6. The petroleum sampling device with quantitative sampling function according to claim 4, characterized in that: The locking mechanism comprises a concave plate (6) fixedly connected to the upper end of the support plate (4); a U-shaped rod (61) is inserted through the side surface of the concave plate (6); the two ends of the U-shaped rod (61) extend to the inner side of the concave plate (6); the two ends of the U-shaped rod (61) are sleeved with locking springs (62); the two ends of the U-shaped rod (61) are fixedly connected to the side surface of a locking tooth block (63); the side of the locking tooth block (63) with teeth is clamped with the gear ring (51); the locking tooth block (63) is slidably connected to the two inner side walls of the concave plate (6); and the two ends of the locking spring (62) are respectively in contact with the locking tooth block (63) and the concave plate (6).

7. The petroleum sampling device with quantitative sampling function according to claim 4, characterized in that: The blocking mechanism comprises a round tube (7) which penetrates from top to bottom and is inserted into the round hole (54); the lower end of the round tube (7) extends downward to the inner cavity of the sampling bottle (2); the lower end of the round tube (7) is fixedly connected to a transmission ring (71); the lower end of the transmission ring (71) is fixedly connected to a sector plate (72) symmetrically at the left and right; the lower end of the sector plate (72) is fixedly connected to a conical plug (73); the upper end of the round tube (7) penetrates upward to the upper end of the concave frame (43) and is fixedly connected to the concave frame (43). A circular seat (74) is fixedly sleeved, and a circular plate (75) and an upward push spring (76) are sleeved on the circular tube (7) from top to bottom in sequence. The circular plate (75) is fixedly connected to the circular tube (7), and the upper and lower ends of the upward push spring (76) are respectively in contact with the circular plate (75) and the guide plate (55). A water volume indicating mechanism is installed at the upper end of the conical plug (73), and a sealing mechanism is sleeved on the bottle mouth of the sampling bottle (2), and the lower end of the sealing mechanism is connected to the transmission ring (71).

8. The petroleum sampling device with quantitative sampling function according to claim 7, characterized in that: The circular tube (7) is slidably connected to the circular hole (54) up and down, the lower end of the circular seat (57) is penetrated upward to form a tapered groove (58), and the tapered plug (73) is clamped with the tapered groove (58).

9. The petroleum sampling device with quantitative sampling function according to claim 7, characterized in that: The water volume indicating mechanism comprises an indicating float (8) arranged at the upper end of the conical plug (73), the indicating float (8) being arranged between the two sector plates (72), the upper end of the indicating float (8) being fixedly connected to a floating rod (81), the upper end of the floating rod (81) penetrating the inner cavity of the circular tube (7) from bottom to top and extending to the outside.

10. The petroleum sampling device with quantitative sampling function according to claim 7, characterized in that: The sealing mechanism comprises a bellows (9) sleeved on the upper end of the sampling bottle (2), the upper end of the bellows (9) is fixedly connected to an upper pressure ring (91), the upper end of the upper pressure ring (91) is tightly fitted with the lower end of the support plate (4), the lower end of the upper pressure ring (91) is fixedly connected to an L-shaped transmission plate (92) in a symmetrical manner in the inner cavity of the bellows (9), the lower end of the L-shaped transmission plate (92) extends downward to the inner cavity of the sampling bottle (2) and is fixedly connected to the upper end of the transmission ring (71).

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