Oil product spot check detection sampling equipment with multi-point sampling function

Abstract

The invention discloses oil product spot check detection sampling equipment with a multi-point sampling function, and relates to the technical field of oil product spot check detection sampling. Comprising a cylinder, an electric push rod is fixedly connected to the middle of the top of a connecting plate, a connecting rod is fixedly connected to the output end of the electric push rod, the connecting rod is located in the cylinder, a sampling piece is fixedly connected to the bottom of the connecting rod, and a plurality of round holes are formed in the outer side of the cylinder and evenly distributed with the cylinder as the center; the inner wall of the barrel is rotationally connected with a rotating piece. According to the multi-point sampling oil product spot check detection sampling equipment, the electric push rod works to drive the sampling piece to move in the barrel, so that oil products with different depths are sampled, the sampling piece slides up and down in the barrel and can stay at any position within the full depth range covered by the barrel, the stratified sampling requirements under different working conditions are met, and the sampling efficiency is improved. Meanwhile, the barrel body resists collision of external objects in the moving process, and the sampling piece is prevented from being deformed or damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil sampling for spot check, in particular to a multi-point sampling device for oil sampling for spot check. BACKGROUND

[0002] Oil refers to crude oil, petroleum products (gasoline, kerosene, diesel, naphtha, etc.), stable light hydrocarbons and stable condensate oil. The rapid development of China's economy has led to a large demand for oil, but before the use of these oil products, a series of detection work needs to be carried out on various substances in the oil to ensure the stability of its performance. The conventional detection items of oil include kinematic viscosity, moisture, flash point, freezing point and pour point, sulfur content, density, distillation range, acid value, base value, color, carbon residue, ash content, calorific value, total sediment, mechanical impurities, insoluble matter, water separation, etc., as well as the detection of the intrinsic quality of the oil. Before oil detection, oil sampling is required.

[0003] In the prior art, the oil sampling site environment is relatively complex, and various tools or equipment may be present. The sampling barrel may be mechanically damaged by collision, scratching, etc. during transportation, storage or use. In addition, after sampling is completed, the outside of the sampling barrel will be contaminated with a lot of oil, which needs to be wiped and cleaned. SUMMARY

[0004] To achieve the above purpose, the present application realizes the technical scheme as follows: a multi-point sampling device for oil sampling for spot check, comprising a support, a moving wheel installed at the bottom of the support, a housing fixedly connected to the top of the support, a hydraulic cylinder fixedly connected to the top middle of the housing, and an output end of the hydraulic cylinder penetrating through the housing and extending into the interior of the housing; a sampling assembly fixedly connected to the hydraulic cylinder, the sampling assembly penetrating through the housing; The housing comprises an outer shell fixedly connected to the support, a circular rod fixedly connected to the interior of the outer shell, a sliding plate slidingly connected to the outer side of the circular rod, a connecting plate fixedly connected to the outer side of the circular rod, the output end of the hydraulic cylinder fixedly connected to the sliding plate, and a connecting block connecting the sliding plate and the connecting plate, Preferably, the sampling assembly comprises a barrel, the barrel is in sliding connection with the shell, the top of the connecting plate is fixedly connected with an electric push rod, the moving wheel drives the bracket to move to the designated position, the hydraulic cylinder drives the connecting plate and the sliding plate to move downward along the round rod, so that the connecting plate drives the barrel to move downward, so that the barrel is located inside the oil product, at this time the electric push rod works to drive the sampling element to move inside the barrel, so that the oil product at different depths is sampled, the sampling element slides up and down inside the barrel, and can stop at any position in the full depth range covered by the barrel, thereby meeting the stratified sampling requirements under different working conditions, and the barrel resists collision with external objects during movement, thereby avoiding deformation or damage of the sampling element, the output end of the electric push rod is fixedly connected with a connecting rod, the connecting rod is located inside the barrel, and the bottom of the connecting rod is fixedly connected with the sampling element.

[0005] Preferably, the number of the round rods is multiple, the two ends of the multiple round rods are fixedly connected with the inner wall of the shell, the multiple round rods are uniformly distributed around the sampling assembly, the connecting plate is located below the sliding plate, the middle of the bottom of the shell is slidingly connected with an intermediate plate, the intermediate plate penetrates through the shell, the bottom of the intermediate plate is fixedly connected with a cleaning ring, after sampling is completed, the hydraulic cylinder drives the barrel and the internal sampling element to move upward, so that the barrel slides inside the cleaning ring, the cleaning ring is closely attached to the outer side of the barrel, so that the cleaning ring scrapes off the oil on the outer side of the barrel, the oil adhered to the surface of the barrel can be directly scraped off through mechanical contact, thereby avoiding the low efficiency and incompleteness of manual wiping, if the surface oil is not removed in time, it may drop onto the equipment or the ground, causing a safety accident such as slipping or fire, the side of the cleaning ring close to the intermediate plate is fixedly connected with a buffer spring, the buffer spring plays a buffering role, and the end of the buffer spring away from the cleaning ring is fixedly connected with the bottom of the shell.

[0006] Preferably, the outer side of the barrel is provided with a circular hole, the number of the circular holes is multiple, the multiple circular holes are uniformly distributed around the barrel, the inner wall of the barrel is rotatably connected with a rotating element, the bottom of the barrel is provided with a through hole, the number of the through holes is multiple, the multiple through holes are uniformly distributed around the sampling element, the inner wall of the bottom of the barrel is fixedly connected with a fixed ring, the baffle is inclined from the edge of the barrel to the fixed ring, when the barrel moves downward, the baffle is pressed and extruded against the inner wall of the through hole, the through hole is closed, thereby preventing the oil from entering the inside of the barrel through the through hole, then the rotating element is rotated, so that the oil on the outer side of the barrel enters the inside of the sampling element through the circular hole, then the rotating element is rotated to close the circular hole, the oil between the rotating element and the barrel flows downward along the gap between the rotating element and the barrel, and falls onto the baffle, the baffle is deformed downward under the force, at this time the oil is discharged through the through hole at the bottom, thereby facilitating the discharge of residual oil, the inner wall of the through hole is fixedly connected with a baffle, the through hole is located at the interval between the fixed ring and the inner wall of the barrel, the baffle is inclined, the end of the baffle close to the fixed ring is fixedly connected with the inner wall of the through hole, and the baffle is elastic.

[0007] Preferably, the rotating component includes a slip ring, which is rotatably connected to the inner wall of the cylinder. A circular ring is fixedly connected to the inner wall of the slip ring, and the inner wall of the circular ring has multiple square grooves evenly distributed around the circular ring. A circular groove is formed on the outer side of the slip ring, penetrating both the slip ring and the circular ring. A square plate is located inside the square groove. The drive motor rotates the rotating cylinder, which in turn rotates the circular ring and the slip ring via the square plate. This causes the circular groove and the circular hole on the circular ring to be aligned on the same axis, thus enabling flow between the rotating cylinder and the cylinder through geometrical alignment. This eliminates the need for mechanical extrusion or pumping, avoiding high shear. The force causes damage to the oil structure. There are multiple circular grooves, which are evenly distributed around a central ring. A cylinder is slidably connected inside the slip ring. In the initial state, the cylinder is located inside the cylinder. The elasticity of the compression spring is used to lock the cylinder and the rotating cylinder together, ensuring that the position of the rotating cylinder and the cylinder is fixed and preventing the slip ring from rotating when adjusting the sampling depth. This acts as a limit. A compression spring is fixedly connected to the end of the cylinder. The end of the compression spring away from the cylinder is fixedly connected to the inside of the slip ring. There are multiple cylinders, and the cylinders and circular grooves are staggered.

[0008] Preferably, the sampling component includes a rotating drum. A top plate is fixedly connected to the top of the rotating drum, and a bearing is fixedly connected to the middle of the top plate. The bearing is rotatably connected to the outer side of a connecting rod. A cylinder is rotatably connected to the inner wall of the rotating drum, and a fixing plate is fixedly connected to the inner wall of the cylinder. A drive motor drives the rotating drum to rotate, and the rotating drum drives the ring and slip ring to rotate through a square plate, so that the circular hole and the circular groove are connected to the guide pipe through the connecting pipe, thereby allowing the oil to enter the interior of the test tube through the guide pipe. The top middle of the fixing plate is fixedly connected to the connecting rod. A fixing seat is provided on the inner wall of the cylinder, and the fixing seat is threadedly connected to the inner wall of the cylinder. A drive motor is fixedly connected to the top middle of the fixing seat, and the output end of the drive motor passes through the fixing seat. The output end of the drive motor is fixedly connected to the bottom middle of the inner wall of the rotating drum. A protective frame is fixedly connected to the bottom of the fixing plate, and the two ends of the protective frame are fixedly connected to the fixing plate and the fixing seat, respectively. A square plate is fixedly connected to the outer side of the rotating drum near the top plate. The outer side of the rotating drum is fixedly connected to a connecting pipe. By setting multiple connecting pipes, multiple connecting pipes on the same horizontal plane can simultaneously collect samples from multiple points at different radial positions at a certain depth of the sampled oil, avoiding the limitations of single-point sampling, making the sample composition uniform, so that the sample can better reflect the overall characteristics. At the same time, it can avoid opening too many independent channels at different heights or positions of the equipment, reducing the structural strength loss of the tank or pipeline, and reducing sealing points, thus reducing the risk of leakage. The square plate and connecting pipe are evenly distributed with the rotating drum as the center. The inner wall of the cylinder is fixedly connected to a guide pipe. The independent guide pipe can ensure that the sample does not mix with the oil in other guide pipes, which is suitable for high purity requirements. The guide pipe has an L-shaped design. The fixed plate is fixedly connected to a fixed frame. The inner wall of the fixed frame is slidably connected to a support seat. A return spring is fixedly connected to the edge of the support seat near the fixed plate. The fixed frame contains a test tube.

[0009] This invention provides a multi-point sampling device for oil product inspection and testing. It has the following beneficial effects: I. This multi-point sampling oil sampling and testing equipment uses an electric actuator to move the sampling element inside the cylinder, enabling sampling of oil at different depths. The sampling element slides up and down inside the cylinder and can stop at any position within the full depth range covered by the cylinder, meeting the stratified sampling requirements under different working conditions. At the same time, the cylinder resists collisions with external objects during movement, preventing deformation or damage to the sampling element.

[0010] Second, this multi-point sampling oil sampling and testing equipment uses a cleaning ring that fits tightly against the outside of the cylinder to scrape off the oil on the outside of the cylinder. This mechanical contact directly scrapes off the oil adhering to the surface of the cylinder, avoiding the inefficiency and incompleteness of manual wiping. If the surface oil is not removed in time, it may drip onto the equipment or the ground, leading to safety accidents such as slipping, fire, etc.

[0011] Third, this multi-point sampling oil sampling and testing equipment, by setting up multiple connecting pipes, can simultaneously collect samples from multiple points at different radial positions at a depth of the sampled oil by multiple connecting pipes on the same horizontal plane, avoiding the limitations of single-point sampling, making the sample composition uniform, and thus the sample can better reflect the overall characteristics.

[0012] IV. This multi-point sampling oil sampling and testing equipment uses a rotating drum to drive the circular ring and slip ring to rotate through a square plate. This causes the circular groove and circular hole on the slip ring to be on the same axis, so that the rotating drum and the cylinder body can achieve flow through geometric positioning. There is no need for mechanical extrusion or pumping, thus avoiding damage to the oil structure caused by high shear force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 3 This is a schematic diagram of the sampling component of the present invention; Figure 4 This is a schematic diagram of a partial cross-sectional view of the sampling component of the present invention; Figure 5 For the present invention Figure 4 A structural schematic diagram of the enlarged view at point A in the middle; Figure 6 This is a schematic diagram of the rotating component of the present invention; Figure 7 This is a structural schematic diagram of a cross-sectional view of the rotating component of the present invention; Figure 8 This is a schematic diagram of the cross-sectional view of the sample part of the present invention; Figure 9 This is a schematic diagram of a partial cross-sectional view of the sample part of the present invention; Figure 10 This is a structural schematic diagram of the cross-sectional view of the housing of the present invention.

[0014] In the diagram: 1. Support; 2. Casters; 3. Housing; 31. Outer shell; 32. Round rod; 33. Slide plate; 34. Connecting plate; 35. Intermediate plate; 36. Cleaning ring; 37. Buffer spring; 4. Hydraulic cylinder; 5. Sampling assembly; 51. Electric actuator; 52. Connecting rod; 53. Cylinder; 54. Round hole; 55. Sampling component; 551. Rotating drum; 552. Top plate; 553. Bearing; 554. Cylinder; 555. Fixing plate; 556. 557. Fixed base; 558. Drive motor; 559. Square plate; 5510. Connecting pipe; 5511. Guide pipe; 5512. Fixed frame; 5513. Support base; 5514. Protective frame; 5515. Test tube; 5516. Return spring; 56. Rotating component; 561. Slip ring; 562. Circular groove; 563. Circular ring; 564. Square groove; 565. Cylinder; 566. Compression spring; 57. Through hole; 58. Baffle; 59. Fixed ring. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution: a multi-point sampling oil sampling and testing device, including a support 1 and a movable wheel 2 installed at the bottom of the support 1. A housing 3 is fixedly connected to the top of the support 1, and a hydraulic cylinder 4 is fixedly connected to the middle of the top of the housing 3. The output end of the hydraulic cylinder 4 passes through the housing 3 and extends into the interior of the housing 3. Sampling component 5 is fixedly connected to hydraulic cylinder 4 and penetrates housing 3; The housing 3 includes an outer shell 31, which is fixedly connected to the bracket 1. A round rod 32 is fixedly connected inside the outer shell 31, and a sliding plate 33 is slidably connected to the outer side of the round rod 32. A connecting plate 34 is fixedly connected to the outer side of the round rod 32. The output end of the hydraulic cylinder 4 is fixedly connected to the sliding plate 33, and the sliding plate 33 and the connecting plate 34 are connected by a connecting block. The sampling assembly 5 includes a cylinder 53, which is slidably connected to the housing 3. An electric actuator 51 is fixedly connected to the top center of the connecting plate 34. The moving wheel 2 drives the bracket 1 to move to a designated position. The hydraulic cylinder 4 works to drive the connecting plate 34 and the sliding plate 33 to move downward along the round rod 32, so that the connecting plate 34 drives the cylinder 53 to move downward, so that the cylinder 53 is located inside the oil. At this time, the electric actuator 51 works to drive the sampling element 55 to move inside the cylinder 53, so that oil at different depths can be sampled. The sampling element 55 slides up and down inside the cylinder 53 and can stay at any position within the full depth range covered by the cylinder 53, meeting the stratified sampling requirements under different working conditions. At the same time, the cylinder 53 resists collision with external objects during the movement to avoid deformation or damage to the sampling element 55. The output end of the electric actuator 51 is fixedly connected to a connecting rod 52, which is located inside the cylinder 53. The bottom of the connecting rod 52 is fixedly connected to the sampling element 55.

[0017] There are multiple round rods 32, with both ends of each rod fixedly connected to the inner wall of the outer casing 31 at perpendicular angles. These rods are evenly distributed around the sampling component 5. A connecting plate 34 is located below the sliding plate 33. A middle plate 35 is slidably connected to the bottom center of the outer casing 31, penetrating the casing 31. A cleaning ring 36 is fixedly connected to the bottom of the middle plate 35. After sampling, the hydraulic cylinder 4 operates, driving the cylinder 53 and the internal sampling component 55 upwards, causing the cylinder 53 to slide inside the cleaning ring 36. The cleaning ring 36 fits tightly against the outside of the cylinder 53, thus scraping off the oil on the outside of the cylinder 53. It can directly scrape off the oil adhering to the surface of the cylinder 53 through mechanical contact, avoiding the inefficiency and incompleteness of manual wiping. If the surface oil is not removed in time, it may drip onto the equipment or the ground, causing safety accidents such as slipping and fire. A buffer spring 37 is fixedly connected to the side of the cleaning ring 36 near the middle plate 35. The buffer spring 37 plays a buffering role. The end of the buffer spring 37 away from the cleaning ring 36 is fixedly connected to the bottom of the outer shell 31.

[0018] Multiple circular holes 54 are provided on the outer side of the cylinder 53, evenly distributed around the cylinder 53. A rotating component 56 is rotatably connected to the inner wall of the cylinder 53. Multiple through holes 57 are provided at the bottom of the cylinder 53, evenly distributed around the sampling component 55. A fixing ring 59 is fixedly connected to the bottom of the inner wall of the cylinder 53. A baffle 58 slopes from the edge of the cylinder 53 towards the fixing ring 59 from low to high. When the cylinder 53 moves downward, the baffle 58 is pressed against the inner wall of the through hole 57, closing the through hole 57 and preventing oil from entering the interior of the cylinder 53 through the through hole 57. Subsequently, the rotating component 56... Rotation causes the oil on the outside of the cylinder 53 to enter the interior of the sampling member 55 through the round hole 54. Then, the rotating member 56 rotates to close the round hole 54. The oil between the rotating member 56 and the cylinder 53 flows downward along the gap between the rotating member 56 and the cylinder 53. The oil falls onto the baffle 58, and the baffle 58 deforms downward under force. At this time, the oil is discharged through the through hole 57 at the bottom, which facilitates the discharge of residual oil. The baffle 58 is fixedly connected to the inner wall of the through hole 57. The through hole 57 is located at the interval between the fixing ring 59 and the inner wall of the cylinder 53. The baffle 58 is inclined. The end of the baffle 58 near the fixing ring 59 is fixedly connected to the inner wall of the through hole 57. The baffle 58 is elastic.

[0019] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 6 to 7As shown, the rotating component 56 includes a slip ring 561, which is rotatably connected to the inner wall of the cylinder 53. A circular ring 563 is fixedly connected to the inner wall of the slip ring 561. A square groove 564 is formed on the inner wall of the circular ring 563. There are multiple square grooves 564, which are evenly distributed around the circular ring 563. A circular groove 562 is formed on the outer side of the slip ring 561, which passes through the slip ring 561 and the circular ring 563. A square plate 558 is located inside the square groove 564. The drive motor 557 drives the rotating drum 551 to rotate. The rotating drum 551 drives the circular ring 563 and the slip ring 561 to rotate through the square plate 558. This causes the circular groove 562 on the circular ring 563 driven by the slip ring 561 to be on the same axis as the circular hole 54. Thus, the rotating drum 551 and the cylinder 53 achieve flow through geometric positioning without mechanical extrusion. Pressurization or pumping is used to avoid damage to the oil structure caused by high shear forces. There are multiple circular grooves 562, which are evenly distributed around a circular ring 563. A cylinder 565 is slidably connected inside a slip ring 561. In the initial state, the cylinder 565 is located inside the cylinder 53. The cylinder 565 is engaged with the rotating cylinder 551 by the elastic properties of the compression spring 566, ensuring that the rotating cylinder 551 is fixed in position with the cylinder 53 and preventing the slip ring 561 from rotating when adjusting the depth of the sampling element 55. The cylinder 565 is fixedly connected to the end of the cylinder 565. The end of the compression spring 566 away from the cylinder 565 is fixedly connected to the inside of the slip ring 561. There are multiple cylinders 565, which are staggered with the circular grooves 562.

[0020] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 8 to 10As shown, the sampling component 55 includes a rotating drum 551. A top plate 552 is fixedly connected to the top of the rotating drum 551, and a bearing 553 is fixedly connected to the middle of the top plate 552. The bearing 553 is rotatably connected to the outer side of the connecting rod 52. A cylinder 554 is rotatably connected to the inner wall of the rotating drum 551, and a fixing plate 555 is fixedly connected to the inner wall of the cylinder 554. The drive motor 557 drives the rotating drum 551 to rotate. The rotating drum 551 drives the ring 563 and the slip ring 561 to rotate through the square plate 558, so that the circular hole 54 and the circular groove 562 are connected to the guide pipe 5510 through the connecting pipe 559, thereby allowing the oil to pass through the guide pipe. 5510 enters the interior of test tube 5514. The top center of the fixing plate 555 is fixedly connected to the connecting rod 52. A fixing seat 556 is provided on the inner wall of the cylinder 554. The fixing seat 556 is threadedly connected to the inner wall of the cylinder 554. A drive motor 557 is fixedly connected to the top center of the fixing seat 556. The output end of the drive motor 557 passes through the fixing seat 556 and is fixedly connected to the bottom center of the inner wall of the rotating cylinder 551. A protective frame 5513 is fixedly connected to the bottom of the fixing plate 555. The two ends of the protective frame 5513 are respectively fixed to the fixing plate 555 and the fixing seat 556. A square plate 558 is fixedly connected to the outer side of the rotating drum 551 near the top plate 552. A connecting pipe 559 is fixedly connected to the outer side of the rotating drum 551. By setting multiple connecting pipes 559, multiple connecting pipes 559 on the same horizontal plane can simultaneously collect samples from multiple points at different radial positions at a certain depth of the sampled oil, avoiding the limitations of single-point sampling, making the sample composition uniform, and thus the sample can better reflect the overall characteristics. At the same time, it can avoid opening too many independent channels at different heights or positions of the equipment, reducing the structural strength loss of the tank or pipeline, and reducing the number of sealing points, thus reducing the risk of leakage. The square plate 558 is fixedly connected to the outer side of the rotating drum 551 near the top plate 552. 8 and connecting pipe 559 are evenly distributed with the rotating cylinder 551 as the center. The inner wall of the cylinder 554 is fixedly connected to the guide pipe 5510. The independent guide pipe 5510 can ensure that the sample does not mix with the oil in other guide pipes 5510, which is suitable for high purity requirements. The guide pipe 5510 has an L-shaped design. The fixed frame 5511 is fixedly connected inside the fixed plate 555. The inner wall of the fixed frame 5511 is slidably connected to the support seat 5512. The support seat 5512 is fixedly connected to the edge of one side near the fixed plate 555 with a return spring 5515. The fixed frame 5511 is equipped with a test tube 5514.

[0021] In use, the moving wheel 2 drives the bracket 1 to move to the designated position. The hydraulic cylinder 4 works to drive the connecting plate 34 and the sliding plate 33 to move downward along the round rod 32, so that the connecting plate 34 drives the cylinder 53 to move downward, so that the cylinder 53 is located inside the oil. At this time, the electric push rod 51 works to drive the sampling element 55 to move inside the cylinder 53, so that oil at different depths can be sampled. The sampling element 55 slides up and down inside the cylinder 53 and can stay at any position within the full depth range covered by the cylinder 53, meeting the stratified sampling requirements under different working conditions.

[0022] The drive motor 557 drives the rotating drum 551 to rotate. The rotating drum 551 drives the ring 563 and the slip ring 561 to rotate through the square plate 558, so that the round hole 54 and the round groove 562 are connected to the guide pipe 5510 through the connecting pipe 559, so that the oil enters the interior of the test tube 5514 through the guide pipe 5510.

[0023] After sampling, the hydraulic cylinder 4 drives the cylinder 53 and the internal sampling component 55 to move upward, so that the cylinder 53 slides inside the cleaning ring 36. The cleaning ring 36 is in close contact with the outside of the cylinder 53, so that the cleaning ring 36 scrapes off the oil on the outside of the cylinder 53. The oil adhering to the surface of the cylinder 53 can be directly scraped off through mechanical contact.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point sampling oil spot check sampling equipment, characterized in that, Include: Support (1), and the mobile wheel (2) installed at the bottom of the support (1), the top of the support (1) is fixedly connected with the shell (3), the top of the shell (3) is fixedly connected with the hydraulic cylinder (4), the output end of the hydraulic cylinder (4) penetrates the shell (3) and extends to the inside of the shell (3); The sampling assembly (5) is fixedly connected with the hydraulic cylinder (4), and the sampling assembly (5) penetrates the shell (3); Wherein, the shell (3) includes an outer shell (31), the outer shell (31) is fixedly connected with the support (1), the inner wall of the outer shell (31) is fixedly connected with a round rod (32), the outer side of the round rod (32) is slidably connected with a sliding plate (33), the outer side of the round rod (32) is fixedly connected with a connecting plate (34), the output end of the hydraulic cylinder (4) is fixedly connected with the sliding plate (33), and the sliding plate (33) and the connecting plate (34) are connected through a connecting block, The sampling assembly (5) includes a cylinder (53), the cylinder (53) is slidably connected with the shell (3), the top of the connecting plate (34) is fixedly connected with an electric push rod (51), the output end of the electric push rod (51) is fixedly connected with a connecting rod (52), the connecting rod (52) is located in the inside of the cylinder (53), and the bottom of the connecting rod (52) is fixedly connected with a sampling part (55).

2. The oil spot sampling equipment according to claim 1, characterized in that: The number of the round rod (32) is multiple, the two ends of the multiple round rod (32) are fixedly connected with the vertical two ends of the inner wall of the outer shell (31), the multiple round rod (32) is evenly distributed around the sampling assembly (5), the connecting plate (34) is located below the sliding plate (33), the bottom of the outer shell (31) is slidably connected with an intermediate plate (35), the intermediate plate (35) penetrates the outer shell (31), the bottom of the intermediate plate (35) is fixedly connected with a cleaning ring (36), the side of the cleaning ring (36) close to the intermediate plate (35) is fixedly connected with a buffer spring (37), and the end of the buffer spring (37) away from the cleaning ring (36) is fixedly connected with the bottom of the outer shell (31).

3. The oil sampling equipment according to claim 1, characterized in that: The outer side of the cylinder (53) is provided with a round hole (54), the number of the round hole (54) is multiple, the multiple round hole (54) is evenly distributed around the cylinder (53), the inner wall of the cylinder (53) is rotatably connected with a rotating part (56), the bottom of the cylinder (53) is provided with a through hole (57), the number of the through hole (57) is multiple, and the multiple through hole (57) is evenly distributed around the sampling part (55).

4. The oil sampling equipment according to claim 3, characterized in that: The inner wall of the cylinder (53) is fixedly connected with a fixed ring (59), the inner wall of the through hole (57) is fixedly connected with a baffle (58), the through hole (57) is located at the interval between the fixed ring (59) and the inner wall of the cylinder (53), the baffle (58) is inclined, the end of the baffle (58) close to the fixed ring (59) is fixedly connected with the inner wall of the through hole (57), and the baffle (58) has elasticity.

5. The oil spot sampling equipment according to claim 4, characterized in that: The rotating part (56) comprises a slip ring (561), the inner wall of the slip ring (561) is rotationally connected with the inner wall of the cylinder (53), the inner wall of the slip ring (561) is fixedly connected with a circular ring (563), a square groove (564) is arranged on the inner wall of the circular ring (563), a plurality of square grooves (564) are evenly distributed around the circular ring (563), and a circular groove (562) is arranged on the outer side of the slip ring (561) and penetrates the slip ring (561) and the circular ring (563).

6. The oil spot sampling equipment according to claim 5, characterized in that: The circular groove (562) is arranged on the outer side of the slip ring (561) and penetrates the slip ring (561) and the circular ring (563), a plurality of circular grooves (562) are evenly distributed around the circular ring (563), the inside of the slip ring (561) is slidably connected with a cylinder (565), the end of the cylinder (565) is fixedly connected with a compression spring (566), one end of the compression spring (566) away from the cylinder (565) is fixedly connected with the inside of the slip ring (561), and a plurality of cylinders (565) are provided.

7. The oil spot sampling equipment according to claim 6, characterized in that: The sampling part (55) comprises a rotating drum (551), the top of the rotating drum (551) is fixedly connected with a top plate (552), the middle of the top plate (552) is fixedly connected with a bearing (553), the bearing (553) is rotationally connected with the outer side of the connecting rod (52), the inner wall of the rotating drum (551) is rotationally connected with a cylinder (554), the inner wall of the cylinder (554) is fixedly connected with a fixed plate (555), the top middle of the fixed plate (555) is fixedly connected with the connecting rod (52), the inner wall of the cylinder (554) is provided with a fixed seat (556), and the fixed seat (556) is threadedly connected with the inner wall of the cylinder (554).

8. The oil spot sampling equipment according to claim 7, characterized in that: The top middle of the fixed seat (556) is fixedly connected with a driving motor (557), the output end of the driving motor (557) penetrates the fixed seat (556), the output end of the driving motor (557) is fixedly connected with the inner wall bottom middle of the rotating drum (551), and the bottom of the fixed plate (555) is fixedly connected with a protective frame (5513).

9. The oil spot sampling equipment according to claim 8, characterized in that: The outer side of the rotating drum (551) close to the top plate (552) is fixedly connected with a square plate (558), the outer side of the rotating drum (551) is fixedly connected with a connecting pipe (559), the square plate (558) and the connecting pipe (559) are distributed in a staggered manner around the rotating drum (551), and the inner wall of the cylinder (554) is fixedly connected with a flow guide pipe (5510).

10. The oil spot sampling equipment according to claim 9, characterized in that: The inner part of the fixed plate (555) is fixedly connected with a fixed frame (5511), the inner wall of the fixed frame (5511) is slidably connected with a supporting seat (5512), the supporting seat (5512) is fixedly connected with a return spring (5515) at the side edge close to the fixed plate (555), and the inner part of the fixed frame (5511) is provided with a test tube (5514).

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