Oil tank sampling device with adjustable sampler position

Abstract

The utility model discloses an oil tank sampling device with adjustable sampler position, comprising: a supporting platform connected to an oil extraction port of the oil tank, a wire drum being arranged on the supporting platform, at least two traction belts penetrating to the bottom of the supporting platform being arranged on the wire drum, a sampler being arranged at the end of one of the traction belts, a sampling port being arranged on the sampler, a bottle plug being arranged at the end of the other traction belt to cooperate with the sampling port, an elastic connector being arranged at the bottom of the sampler to connect with the bottle plug; a flexible oil pipe being arranged at the bottom of the supporting platform, one end of the flexible oil pipe being connected with the sampler, the other end of the flexible oil pipe being connected with the input end of an air-operated diaphragm pump on the supporting platform through a pipe fitting, and the output end of the air-operated diaphragm pump being connected with an oil nozzle through a pipe fitting; the beneficial effects are: simple and reliable structure, convenient operation, meeting the needs of personnel for fast and efficient sampling, and at the same time, having anti-pollution capability, ensuring clean operation and representativeness of oil sampling.

Description

Technical Field

[0001] The utility model relates to the technical field of oil production equipment, in particular to an oil tank sampling device with an adjustable sampler position. Background Art

[0002] During the petrochemical production, storage and transportation process, in order to obtain the physical properties and other parameters of the media in these storage tanks, sampling personnel are required to climb to the top of the tank to perform manual sampling so that laboratory personnel can conduct timely analysis and testing.

[0003] The current manual sampling method is: the operator is on the top of the tank, through the sampling port reserved on the tank body, using a brass sampler, and the bottle mouth is plugged with a stopper; the sampler is tied with ropes tied at regular intervals, and after the sampler is lowered to the required position, the rope is pulled up to open the stopper, and the medium at that position automatically flows into the sampler, and then the sampler is taken out by the rope, and the medium in the sampler is introduced into another sampler; in this way, the process is repeated many times to take out the medium at different positions.

[0004] This traditional manual sampling method is time-consuming, labor-intensive, and difficult to control the representativeness of the sampling. The sampling personnel are often subject to severe weather conditions such as rain, snow, and strong winds. In particular, flammable, explosive, toxic, and harmful media can seriously threaten the lives of the sampling personnel. Utility Model Content

[0005] The purpose of the utility model is to solve the above technical problems and to provide an oil tank sampling device with an adjustable sampler position, which provides a more convenient device for manual operation and solves the time-consuming and labor-intensive problems of traditional manual sampling.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solution: an oil tank sampling device with adjustable sampler position, comprising:

[0007] A support platform connected to the oil extraction port of the oil tank, wherein a wire drum is provided on the support platform, and at least two traction belts are provided on the wire drum and penetrate to the bottom of the support platform, wherein a sampler is provided at the end of one of the traction belts, and a sampling port is provided on the sampler, and a bottle plug is provided at the end of the other traction belt to cooperate with the sampling port, and an elastic connector is also provided at the bottom of the sampler to connect with the bottle plug;

[0008] A flexible oil pipe is also provided under the support platform, one end of which is connected to the sampler, and the other end of which is connected to the input end of the pneumatic diaphragm pump on the support platform through a pipe fitting, and the output end of the pneumatic diaphragm pump is connected to the oil nozzle through a pipe fitting.

[0009] A further preferred technical solution is that the output end of the pneumatic diaphragm pump is connected to the first port of the three-way valve through a pipe;

[0010] The second port of the three-way valve is connected to the oil nozzle;

[0011] The third port of the three-way valve is provided with an oil return pipe, and the oil return pipe runs through the supporting platform body to the oil tank.

[0012] A further preferred technical solution is that a plurality of sampling containers are provided under the oil nozzle, and the plurality of sampling containers are arranged in a row on a carrier, a base is provided on the support platform, a pair of guide rods are provided on the base, a pair of slide blocks sliding along the axial direction of the guide rods are provided on the guide rods, the carrier is connected to the slide blocks, a tray is provided on the carrier, the sampling containers are placed in the container seats of the tray in sequence, and a handle is provided on one side of the carrier.

[0013] A further preferred technical solution is that a sealing flange is provided on the supporting platform body to cooperate with the flexible oil pipe.

[0014] A further preferred technical solution is that a tractor is provided on the support platform, and a through hole is provided on the tractor, and the traction belt passes through the through hole and enters the oil tank.

[0015] A further preferred technical solution is that the tractor is a rectangular plate-shaped member, the plate-shaped member is obliquely arranged on one side of the traction belt, and the angle between the tractor and the traction belt is 30-60 degrees.

[0016] A further preferred technical solution is that a driving mechanism is provided on the support platform on one side of the traction belt connected to the cork, the driving mechanism includes a support fixed on the support platform, the support has a guide groove arranged perpendicular to the traction belt, a slider is provided in the guide groove, a push rod is provided on one side of the support to connect with the slider, a group of top screws are provided on the support to cooperate with the slider, and a traction rod is provided on the side of the slider close to the traction belt to rest against the side of the traction belt.

[0017] A further preferred technical solution is that the sampling port of the sampler is a conical port, the bottle stopper is a cone, the upper end of the cone has a guide rod, the upper end of the sampler is provided with a lifting handle, the traction belt connecting the sampler cooperates with the lifting handle, the lifting handle is provided with a guide hole, and the guide rod of the bottle stopper cooperates with the guide hole.

[0018] A further preferred technical solution is that the wire drum is mounted on a rotating shaft, a rocker arm is provided at one end of the rotating shaft, a ratchet mechanism is provided on the side of the wire drum close to the rocker arm, the ratchet mechanism includes a ratchet and a non-return pawl, the ratchet is mounted on the rotating shaft, the non-return pawl is mounted on the outer shell of the wire drum, the non-return pawl is hinged to the rocker arm, and the non-return pawl is inserted into the ratchet teeth.

[0019] A further preferred technical solution is that the flexible oil pipe is spirally coiled in the oil tank.

[0020] Compared with the prior art, the utility model has the following beneficial effects: simple and reliable structure, convenient operation, meeting the personnel's needs for fast and efficient sampling, and at the same time, the device has anti-pollution capability, ensuring clean operation during sampling and representativeness of oil sampling;

[0021] The problem of suction range of the existing pneumatic diaphragm pump is solved. By raising the sampling bottle to the top of the tank, the suction range of the pneumatic diaphragm pump can be met, so that the oil in the sampling bottle can be extracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the axonometric views of the utility model without an organic cover;

[0023] Figure 2 This is the second axonometric drawing of the utility model without an inorganic cover;

[0024] Figure 3 This is the third axonometric drawing of the utility model without an inorganic cover;

[0025] Figure 4 This is the axonometric drawing of the utility model;

[0026] In the figure: 1. Support platform; 2. Pneumatic diaphragm pump; 3. Wire reel; 4. Wire groove; 5. Ratchet mechanism; 6. Rocker arm; 7. Three-way valve; 8. Oil return pipe; 9. Oil nozzle; 10. Sampling container; 11. Carrier; 12. Guide rod; 13. Base; 14. Flexible oil pipe; 15. Sampler; 16. Top screw; 17. Slider; 18. Support; 19. Push rod; 20. Traction rod; 21. First traction belt; 22. Second traction belt; 23. Tractor; 24. Bottle stopper; 25. Sampling port; 26. Lifting handle; 27. Elastic connector; 28. Protective pipe fittings; 29. ​​Machine cover. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example

[0029] In the process of petrochemical production, storage and transportation, in order to obtain the physical properties and other parameters of the medium in these storage tanks, sampling personnel need to climb to the top of the tank to perform manual sampling so that the laboratory personnel can conduct timely analysis and testing. The traditional manual sampling method is time-consuming and laborious, the representativeness of the sampling is difficult to control, the labor intensity of the sampling personnel is high, and they are often restricted by bad weather conditions such as rain, snow, and strong winds. In particular, flammable, explosive, toxic and harmful media will seriously threaten the life safety of the sampling personnel. In order to solve the existing problems, the present application provides an oil tank sampling device with an adjustable sampler position, such as Figure 1 and Figure 2 As shown, it includes a support platform 1 connected to the oil extraction port of the oil tank, one end of the support platform 1 has a stopper matched with the oil extraction port of the oil tank, and the other end of the support platform 1 is provided with a pair of bearing brackets, the bearing bracket is provided with a rotating shaft, one end of the rotating shaft is provided with a rocker arm 6, a wire drum 3 is mounted on the rotating shaft, and two circles of wire grooves 4 are provided on the wire drum 3, wherein a first traction belt 21 is provided in the first wire groove, and a second traction belt 22 is provided in the second wire groove, a sampler 15 is provided at the end of the first traction belt 21, and a bottle plug 24 is provided at the end of the second traction belt 22, a sampling port 25 is opened on the sampler 15, and an elastic connecting member 27 is provided at the bottom of the sampler 15, and the bottle plug 24 can be sealed on the sampler 15 to prevent the oil from entering the sampler 15, and then the wire drum 3 is rotated. , the first traction belt 21 and the second traction belt 22 wound on the wire drum 3 are synchronously retracted and released, the sampler 15 and the bottle plug 24 are lowered to the specified position of the oil tank, and then the second traction belt 22 is driven by the driving mechanism to overcome the elastic force of the elastic connecting member 27, and the bottle plug 24 is pulled away from the sampler 15 from the sampling port 25 of the sampler 15. At this time, the oil in the oil tank enters the sampler 15 from the sampling port 25. When the sampler 15 completes sampling, the bottle plug 24 is pulled to the sampling port 25 by the elastic connecting member 27 to block the sampling port 25 of the sampler 15. Then, the first traction belt 21 and the second traction belt 22 wound on the wire drum 3 are synchronously retracted by rotating the wire drum 3, and the sampler 15 and the bottle plug 24 are lifted from the sampling position to a position close to the supporting platform 1, so as to facilitate the removal of the oil from the sampler 15.

[0030] In one embodiment, the first traction belt 21 and the second traction belt 22 are made of stainless steel and have the characteristics of being resistant to compression, non-deformation, easy to wind, easy to straighten, and having a large load-bearing capacity. At the same time, scale lines with standard sizes are engraved on the surface of the first traction belt 21 and the second traction belt 22.

[0031] In order to prevent the first traction belt 21 and the second traction belt 22 from swaying during the process of retracting and releasing, causing the sampler 15 to shake and unable to be retracted and released in a certain direction, a tractor 23 is provided on the support platform 1, and the tractor 23 is provided with a through hole, and the first traction belt 21 and the second traction belt 22 enter the oil tank after passing through the through hole. Specifically, the tractor 23 is a rectangular plate-shaped member, and the plate-shaped member is obliquely arranged on one side of the first traction belt 21 and the second traction belt 22. The first traction belt 21 and the second traction belt 22 pass through the through hole to enter the oil tank. In one embodiment, the The angle between the tractor 23 and the first traction belt 21 and the second traction belt 22 is 30-60 degrees. The first traction belt 21 and the second traction belt 22 are laterally stretched by the tractor 23 to form tension on the first traction belt 21 and the second traction belt 22, thereby ensuring that the first traction belt 21 and the second traction belt 22 can be stably retracted and extended vertically. Furthermore, the support platform 1 below the tractor 23 is also provided with a through hole that penetrates the support platform 1 to cooperate with the first traction belt 21 and the second traction belt 22, so as to further pull the first traction belt 21 and the second traction belt 22.

[0032] The driving mechanism is arranged on the supporting platform 1 on one side of the second traction belt 22, and the driving mechanism includes a support 18 fixed on the supporting platform 1, and the support 18 has a guide groove arranged perpendicular to the second traction belt 22, and a slider 17 is arranged in the guide groove, and a push rod 19 is arranged on one side of the support 18 to connect with the slider 17 to push the slider 17 to reciprocate in the guide groove, and a group of top screws 16 are arranged on the support 18 to cooperate with the slider 17 to fix the slider 17 in the guide groove, and a traction rod 20 is arranged on the side of the slider 17 close to the second traction belt 22 to abut against the second traction belt. The side of the guide belt 22; the sampler 15 and the bottle plug 24 are lowered to the specified position of the oil tank, and then the slider 17 is pushed by the push rod 19. The slider 17 drives the second traction belt 22 to deviate laterally through the traction rod 20. The second traction belt 22 overcomes the elastic force of the elastic connecting member 27 and pulls the bottle plug 24 away from the sampler 15 from the sampling port 25 of the sampler 15. At this time, the oil in the oil tank enters the sampler 15 from the sampling port 25. When the sampler 15 completes sampling, the bottle plug 24 is pulled to the sampling port 25 by the elastic connecting member 27 to seal the sampling port 25 of the sampler 15.

[0033] like Figure 3As shown, in order to make the bottle stopper 24 and the sampler 15 have a good match, the sampling port 25 of the sampler 15 is a conical port, the bottle stopper 24 is a cone, the upper end of the cone has a guide rod, the upper end of the sampler 15 is provided with a handle 26, the first traction belt 21 cooperates with the handle 26, the handle 26 is provided with a guide hole, the guide rod of the bottle stopper 24 cooperates with the guide hole, and the mechanism of opening and closing the bottle stopper 24 of the sampler 15 is that the second traction belt 22 on the guide rod has no When stretched, the bottle stopper 24 is pulled into the sampling port 25 by the elastic connecting piece 27, and the bottle stopper 24 of the sampler 15 is in a closed state; when the driving mechanism pushes the second traction belt 22 to stretch upward for a distance, and at the same time the second traction belt 22 pulls the guide rod upward, the bottle stopper 24 of the sampler 15 is in an open state; if the driving mechanism is reset, the first traction belt 21 is relaxed, and at the same time the elastic connecting piece 27 pulls the bottle stopper 24 into the sampling port 25 of the sampler 15, the bottle stopper 24 of the sampler 15 continues to be in a closed state.

[0034] In one embodiment, the elastic connector 27 is a spring, preferably a coil spring. The spring deforms under the action of an external force and returns to its original state after the external force is removed. This property of the spring is used to reset the bottle stopper and open or close the sampling port 25 of the sampler 15.

[0035] In another embodiment, in order to control the retraction and release speed of the first traction belt 21 and the second traction belt 22 on the wire drum 3, a ratchet mechanism 5 is provided on the side of the wire drum 3 close to the rocker arm 6, and the ratchet mechanism 5 includes a ratchet and a non-return pawl. The ratchet is mounted on the rotating shaft, and the non-return pawl is installed on the outer shell of the wire drum 3. The non-return pawl is hinged on the rocker arm 6, and the non-return pawl is inserted into the ratchet teeth. The ratchet mechanism 5 converts continuous rotation or reciprocating motion into unidirectional stepping motion, so that the first traction belt 21 and the second traction belt 22 are intermittently fed. At the same time, the non-return pawl can be used to keep the position of the sampler 15 stable when the first traction belt 21 and the second traction belt 22 are retracted to a certain position. When the lowering position needs to be adjusted, the non-return pawl needs to be manually moved to disengage the non-return pawl from the ratchet teeth to lower the first traction belt 21 and the second traction belt 22. When the sampler 15 needs to be retracted, the rocker arm 6 only needs to be reversed to retract the first traction belt 21 and the second traction belt 22.

[0036] In order to realize the removal of the oil liquid in the sampler 15 from the sampler 15, the support platform 1 has a through hole that penetrates the support platform 1 body, and a sealing flange is also provided at the through hole of the support platform 1 body. The lower end of the sealing flange is connected to one end of the flexible oil pipe 14, and the flexible oil pipe 14 forms a sealing fit with the support platform 1 body through the sealing flange, and the other end of the flexible oil pipe 14 is connected to the sampler 15.

[0037] The upper end of the sealing flange is connected to the input end of the pneumatic diaphragm pump 2 through a pipe fitting, and the output end of the pneumatic diaphragm pump 2 is connected to the first port of the three-way valve 7 through a pipe fitting. The pneumatic diaphragm pump 2 is connected to an external air source through an air source two-piece. A bracket is provided on the support platform 1 for installing the pneumatic diaphragm pump 2 and the air source two-piece.

[0038] The second port of the three-way valve 7 is connected to the oil nozzle 9, and a plurality of sampling containers 10 are arranged below the oil nozzle 9. The plurality of sampling containers 10 are arranged in a row on a carrier 11. A base 13 is provided on the support platform 1, and a pair of guide rods 12 are provided on the base 13. A pair of slide blocks sliding along the axial direction of the guide rods are provided on the pair of guide rods 12. The carrier 11 is connected to the slide blocks. A tray is provided on the carrier 11. The sampling containers 10 are placed in the container seats of the tray in sequence. A handle is provided on one side of the carrier 11, and the carrier 11 can be pushed to reciprocate along the guide rod in a straight line by the handle, so that the plurality of sampling containers 10 are aligned with the second port of the three-way valve 7 in sequence. A rib is provided on one side of the base 13, and positioning holes are arranged at intervals on the rib along the axial direction of the guide rod. A position hole is provided on the side of the carrier 11 corresponding to the rib, and any one of the positioning holes is connected to the position hole by a detachable blocking positioning block.

[0039] The third port of the three-way valve 7 is provided with an oil return pipe 8 , and the oil return pipe 8 passes through the support platform 1 body to the oil tank.

[0040] The three-way valve 7 is provided with a switch, and the switch controls the communication between the first port and the second port or the third port.

[0041] The flexible oil pipe 14 is spirally wound in the oil tank. The spiral flexible oil pipe 14 can ensure that it always remains connected with the sampler 15 during the process of retracting and extending the sampler 15. When the sampler 15 is lowered, the pitch of the spiral flexible oil pipe 14 becomes larger, and when the sampler 15 is retracted, the pitch of the spiral flexible oil pipe 14 becomes smaller. This can solve the problem of the suction range of the existing pneumatic diaphragm pump 2. By raising the sampling bottle 15 to the top of the tank, the suction range of the pneumatic diaphragm pump 2 can be met, thereby extracting the oil in the sampling bottle 15.

[0042] A protective pipe 28 is provided at the lower end of the support platform 1 , and the flexible oil pipe 14 and the sampler 15 are both installed in the protective pipe 28 .

[0043] The entire oil pipe loop is composed of a flexible oil pipe 14 inserted into the tank body, which comes out of the tank body and is connected to the input end of the pneumatic diaphragm pump 2 through a pipe fitting. After passing through the pneumatic diaphragm pump 2, it is connected to the first port of the three-way valve 7 through a pipe fitting from the output end of the pneumatic diaphragm pump 2, and the third port of the three-way valve 7 returns to the oil tank through the return oil pipe 8; the first port in the three-way valve 7 is connected to the pneumatic diaphragm pump 2, the second port is connected to the sampling container 10, and the third port is connected to the return oil pipe 8; the connection between the first port and the second port or the third port of the three-way valve is controlled by a switch, and the connection between the first port and the second port of the three-way valve is controlled by a switch, so that the oil pipe loop is connected to the sampling container 10. After the switch is turned on, part of the oil can enter the sampling container 10. After closing, all the oil flows back into the tank body through the return oil pipe 8.

[0044] like Figure 4 As shown, a hood 29 is also provided on the support platform 1, and the hood 29 is formed by bending and welding sheet metal parts. The function of the hood 29 is to seal and protect the entire sampling device, and has a certain heat preservation effect after absorbing the heat of the oil tank.

[0045] The oil suction pipeline is composed of a flexible oil pipe 14 , a three-way valve 7 , a pneumatic diaphragm pump 2 , an oil nozzle 9 and other components; the function of the oil suction pipeline is to extract the oil in the sampler 15 into the sampling container 10 .

[0046] The wire drum 3 and the rotating shaft, rocker arm 6, bearing bracket and other parts constitute a hand-cranked lifting mechanism, and the function of the hand-cranked lifting mechanism is to retract and release the first traction belt 21 and the second traction belt 22 so that the sampler 15 can reach different depths.

[0047] The sampling container positioning slide is composed of a guide rail 12 and a slider, a carrier 11, a blocking positioning block, a handle and a tray for the sampling container 10; the sampling container positioning slide is used to carry and position the sampling container 10 so that the sampling container 10 can be placed and switched manually quickly and accurately.

[0048] The oil tank sampling device is installed on the oil tank sampling port flange. After installation, the air source is connected to the air inlet on the air source two-piece of the sampling device. The entire device can start sampling under manual operation; the specific operation process is as follows: manually put an appropriate number of empty sampling containers 10 on the tray, pull out the blocking positioning block so that the tray can slide along the guide rod 12, push the sampling container 10 to the initial position, align the bottle mouth of the sampling container 10 with the oil nozzle, insert the blocking positioning block from the positioning hole into the position hole, and temporarily fix the tray; then dial Open the check pawl of the ratchet mechanism 5, put down the sampler 15, observe the scales on the first traction belt 21 and the second traction belt 22, and dial the check pawl of the ratchet mechanism 5 when the sampling position is reached; push the second traction belt 22 through the driving mechanism to open the bottle stopper, and after the sampler 15 is filled with oil, reset the driving mechanism and close the bottle stopper 24 under the action of the spring; shake the rocker 6 to drive the first traction belt 21 and the second traction belt 22 to lift the sampler 15 to a position close to the top of the tank; open the bottle stopper 24 through the driving mechanism and start the pneumatic diaphragm Pump 2, connect the first port of the three-way valve 7 with the third port through the switch, discharge the oil sucked in the flexible oil pipe 14 last time, and confirm that the oil at the new sampling point has been sucked into the flexible oil pipe 14; open the switch to connect the first port of the three-way valve 7 with the second port, inject a sufficient amount of oil into the sampling container 10, turn off the switch and the pneumatic diaphragm pump 2; pull out the blocking positioning block, and then push the tray to push the next sampling container 10 under the oil nozzle, and then push the non-return pawl of the ratchet mechanism 5 again, put down the sampler 15, and observe the first traction The scales on the lead belt 21 and the second traction belt 22 are dialed into the non-return pawl of the ratchet mechanism 5 after reaching the sampling position; the second traction belt 22 is pushed by the driving mechanism to open the bottle stopper 24, and after the sampler 15 is filled with oil, the driving mechanism is reset and the bottle stopper 24 is closed under the action of the spring; the rocker arm 6 is shaken to drive the first traction belt 21 and the second traction belt 22 to lift the sampler 15 to a position close to the top of the tank, and the pneumatic diaphragm pump 3 is started to inject a sufficient amount of oil into the sampling container 10; the above actions are repeated until all sampling is completed.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil tank sampling device with adjustable sampler position, characterized in that: include: A support platform connected to the oil extraction port of the oil tank, wherein a wire drum is provided on the support platform, and at least two traction belts are provided on the wire drum and penetrate to the bottom of the support platform, wherein a sampler is provided at the end of one of the traction belts, and a sampling port is provided on the sampler, and a bottle plug is provided at the end of the other traction belt to cooperate with the sampling port, and an elastic connector is also provided at the bottom of the sampler to connect with the bottle plug; A flexible oil pipe is also provided under the support platform, one end of which is connected to the sampler, and the other end of which is connected to the input end of the pneumatic diaphragm pump on the support platform through a pipe fitting, and the output end of the pneumatic diaphragm pump is connected to the oil nozzle through a pipe fitting.

2. The oil tank sampling device with adjustable sampler position according to claim 1, characterized in that: The output end of the pneumatic diaphragm pump is connected to the first port of the three-way valve through a pipe; The second port of the three-way valve is connected to the oil nozzle; The third port of the three-way valve is provided with an oil return pipe, and the oil return pipe runs through the supporting platform body to the oil tank.

3. The oil tank sampling device with adjustable sampler position according to claim 1 or 2, characterized in that: A plurality of sampling containers are arranged under the oil nozzle, and the plurality of sampling containers are arranged in a row on a carrier. A base is provided on the support platform, and a pair of guide rods are provided on the base. A pair of slide blocks sliding along the axial direction of the guide rods are provided on the pair of guide rods. The carrier is connected to the slide blocks, and a tray is provided on the carrier. The sampling containers are placed in the container seats of the tray in sequence, and a handle is provided on one side of the carrier.

4. The oil tank sampling device with adjustable sampler position according to claim 1 or 2, characterized in that: The supporting platform body is also provided with a sealing flange which cooperates with the flexible oil pipe.

5. The oil tank sampling device with adjustable sampler position according to claim 1, characterized in that: A tractor is arranged on the supporting platform, and a through hole is arranged on the tractor. The traction belt passes through the through hole and enters the oil tank.

6. The oil tank sampling device with adjustable sampler position according to claim 5, characterized in that: The tractor is a rectangular plate-shaped member, which is obliquely arranged on one side of the traction belt. The angle between the tractor and the traction belt is 30-60 degrees.

7. The oil tank sampling device with adjustable sampler position according to claim 1, characterized in that: A driving mechanism is provided on the support platform on one side of the traction belt connected to the bottle stopper, and the driving mechanism includes a support fixed on the support platform, the support has a guide groove arranged perpendicular to the traction belt, a slider is provided in the guide groove, a push rod is provided on one side of the support to connect with the slider, a group of top screws are provided on the support to cooperate with the slider, and a traction rod is provided on the side of the slider close to the traction belt to rest against the side of the traction belt.

8. The oil tank sampling device with adjustable sampler position according to claim 1, characterized in that: The sampling port of the sampler is a conical port, the bottle stopper is a cone, the upper end of the cone has a guide rod, the upper end of the sampler is provided with a handle, the traction belt connecting the sampler cooperates with the handle, the handle is provided with a guide hole, and the guide rod of the bottle stopper cooperates with the guide hole.

9. The oil tank sampling device with adjustable sampler position according to claim 1, characterized in that: The wire drum is mounted on a rotating shaft, a rocker arm is provided at one end of the rotating shaft, a ratchet mechanism is provided on the side of the wire drum close to the rocker arm, the ratchet mechanism includes a ratchet and a non-return pawl, the ratchet is mounted on the rotating shaft, the non-return pawl is installed on the outer shell of the wire drum, the non-return pawl is hinged on the rocker arm, and the non-return pawl is inserted into the ratchet teeth.

10. The oil tank sampling device with adjustable sampler position according to claim 1, characterized in that: The flexible oil pipe is spirally coiled in the oil tank.

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