Tank truck sampling device

Abstract

The present application relates to a tank truck sampling device, which includes two symmetrically arranged columns, the two columns are connected by a truss, a slider is slidably arranged on the truss along the length direction, a slider driving mechanism is arranged on the truss to drive the slider to reciprocate along the truss, a sampling mechanism is arranged below the slider, the sampling mechanism is connected to the slider through a lifting mechanism, a camera is arranged on the bottom of the slider, the sampling mechanism includes a mounting plate, the mounting plate is connected to the lifting mechanism, a sampling cylinder is arranged in the middle of the bottom of the mounting plate, a sampling tube is connected in the middle of the lower end of the sampling tube, a piston is arranged inside the sampling tube, a piston driving mechanism is arranged above the mounting plate to drive the piston to move up and down inside the sampling tube, a positioning mechanism is arranged on one side of the mounting plate, and the positioning mechanism is used to detect the depth of the sampling tube inserted into the liquid. The present application has the effect of realizing automated sampling operations, improving the working efficiency of sampling, and reducing the operation risks.

Description

Technical Field

[0001] The present application relates to the technical field of tooling and fixtures, and in particular to a tank truck sampling device. Background Art

[0002] N-methylpyrrolidone is an organic substance with a chemical formula of C5H9NO. It is a colorless to light yellow transparent liquid with a slight ammonia smell. It is miscible with water in any proportion, soluble in ether, acetone, esters, halogenated hydrocarbons, aromatic hydrocarbons and other organic solvents. It is completely mixed with almost all solvents and has a very high recovery value. In the process of NMP recovery, both the waste liquid samples and the finished products need to be transported by tank trucks. At present, when extracting NMP from the tank truck, it is generally necessary to hang the sampling bottle by a sling and put the sampling bottle into the tank truck. The sampling bottle easily floats on the NMP liquid surface by buoyancy. The operator needs to swing the sampling bottle so that the bottle mouth of the sampling bottle contacts the NMP to complete the sampling, which is inconvenient to operate. At the same time, when the sampling bottle is lifted by the sling, the sling and the sampling bottle are easy to shake, which will cause the NMP liquid to spill on the body of the sampler, and the sampler needs to work on the top of the tank truck, which has certain personal safety risks. Summary of the invention

[0003] In order to solve the problem that the existing tank truck sampling method in the prior art has unchanged operation and high risk, the present application provides a tank truck sampling device.

[0004] A tank truck sampling device provided in the present application adopts the following technical solution: a tank truck sampling device, comprising two symmetrically arranged columns, the two columns are connected by a truss, a slider is slidably arranged on the truss along the length direction, a slider driving mechanism is arranged on the truss for driving the slider to reciprocate along the truss, a sampling mechanism is arranged below the slider, the sampling mechanism is connected to the slider through a lifting mechanism, a camera is arranged on the bottom surface of the slider, the sampling mechanism comprises a mounting plate, the mounting plate is connected to the lifting mechanism, a sampling cylinder is arranged in the middle of the bottom surface of the mounting plate, a sampling tube is connected in the middle of the lower end of the sampling tube, a piston is arranged inside the sampling tube, a piston driving mechanism is arranged above the mounting plate for driving the piston to move up and down inside the sampling tube, a positioning mechanism is arranged on one side of the mounting plate, and the positioning mechanism is used to detect the depth of the sampling tube inserted into the liquid.

[0005] By adopting the above technical solution, when sampling the tank truck, the tank truck travels to the bottom of the truss so that the tank mouth on the tank truck is located directly below the truss. The operator observes the position of the tank mouth through the camera at the bottom of the slider and starts the slider driving mechanism. The slider driving mechanism drives the slider to move along the truss to the top of the tank mouth. Then the lifting mechanism drives the sampling mechanism to descend. The sampling mechanism enters the tank truck through the tank mouth. When the sampling tube in the sampling mechanism contacts the liquid surface, the positioning mechanism detects the depth of the sampling tube inserted into the liquid. When the set depth is reached, the lifting mechanism stops running. The piston driving mechanism in the sampling mechanism drives the piston inside the sampling cylinder to move upward. The liquid is sucked into the sampling cylinder through the sampling tube through the movement of the piston. After the sampling is completed, the lifting mechanism drives the sampling mechanism to move upward, and the sampling mechanism is separated from the tank mouth. The slider drives the sampling mechanism to move to one end of the truss under the drive of the slider driving mechanism. The piston driving mechanism drives the piston to move downward, and the piston discharges the liquid in the sampling cylinder, thereby realizing the sampling operation of the tank truck.

[0006] Optionally, the slider driving mechanism includes a screw rod rotatably arranged inside the truss, the slider is threadedly connected to the screw rod, and one end of the screw rod is connected to a slider driving motor.

[0007] By adopting the above technical solution, the slider drives the motor to drive the screw to rotate, the screw is threadedly connected to the slider, and the rotation of the screw drives the slider to reciprocate along the truss.

[0008] Optionally, the lifting mechanism adopts a screw lifting mechanism, and the lifting mechanism includes a lifting screw that passes through the slider, the lower end of the lifting screw is connected to the sampling mechanism, and a lifting drive seat is provided on the slider to drive the lifting screw to lift.

[0009] By adopting the above technical solution, the lifting drive seat is fixedly arranged on the slider, and when the lifting drive seat is in operation, it drives the lifting screw to move up and down, thereby driving the sampling mechanism to reciprocate up and down.

[0010] Optionally, the piston driving mechanism includes a lead screw connected to the piston, and a driving seat for driving the lead screw to move is arranged in the middle above the mounting plate.

[0011] By adopting the above technical solution, the drive seat is fixedly arranged on the mounting plate, and the drive seat drives the lead screw to move up and down, and the lead screw drives the piston to move up and down to realize the liquid suction and discharge of the sampling tube.

[0012] Optionally, the sampling mechanism also includes a limit plate, the upper part of the limit plate is connected to the lifting mechanism, the mounting plate is arranged below the middle of the limit plate, one end of the limit plate is downwardly extended with a connecting plate, one end of the mounting plate is movably connected to the connecting plate up and down, and the side of the connecting plate is provided with scales from top to bottom.

[0013] By adopting the above technical solution, the mounting plate and the connecting plate are movably connected. The distance between the mounting plate and the limit plate can be adjusted by adjusting the movement of the mounting plate along the connecting plate. When the sampling tube is sampling, the lead screw moves upward and the limit plate limits the lead screw. Therefore, the movement stroke of the lead screw can be controlled by adjusting the distance between the mounting plate and the limit plate, thereby realizing the control of the sampling amount of the sampling tube. A scale is set on the side of the connecting plate to facilitate the operator to quickly adjust the position of the mounting plate to realize precise control of the sampling amount.

[0014] Optionally, a guide plate is connected to the upper end of the lead screw.

[0015] By adopting the above technical solution, the guide plate guides the movement of the screw to improve the stability of the screw when it moves up and down, and on the other hand, the guide plate is arranged on one side of the scale to facilitate the operator to read the scale.

[0016] Optionally, an adjustment mechanism is provided between the mounting plate and the connecting plate.

[0017] By adopting the above technical solution, the adjustment mechanism is used to adjust and fix the position of the mounting plate.

[0018] Optionally, the positioning mechanism includes a float arranged flush with the lower end of the sampling tube, a connecting rod is connected above the float, the connecting rod passes through and connects to the mounting plate, a positioning plate is arranged above the mounting plate, and a pressure-sensitive sensor is arranged on the bottom surface of the positioning plate corresponding to the connecting rod.

[0019] By adopting the above technical solution, when the sampling device contacts the liquid surface, the float floats on the liquid surface, and the float drives the connecting rod to move upward. When the connecting rod contacts the pressure-sensitive sensor on the bottom of the positioning plate, the lifting mechanism stops running, and the depth of the sampling tube penetrating into the liquid surface is the height of the connecting rod moving upward, thereby ensuring that the sampling tube penetrates into the liquid surface at a certain height, which is convenient for sampling.

[0020] Optionally, the positioning mechanism includes a positioning plate arranged above the mounting plate, a downwardly extending conduit is arranged on the bottom surface of the positioning plate, the lower end of the conduit is flush with the lower end of the sampling tube, the connection between the conduit and the positioning plate is sealed and a pressure sensor is arranged.

[0021] By adopting the above technical solution, when the sampling device contacts the liquid surface, the catheter is inserted into the liquid. Since the upper end of the catheter is closed, as the catheter descends, the gas pressure inside the catheter increases. The pressure sensor detects the gas pressure. The operator can set the pressure to control the depth of the catheter into the liquid surface. When the pressure sensor detects that the pressure inside the catheter reaches the set pressure, the lifting mechanism stops running and the sampling tube penetrates the liquid surface to the set depth, which is convenient for sampling.

[0022] Optionally, a control panel is provided on one side of the column, and the control panel is electrically connected to the slider driving mechanism, the lifting mechanism and the sampling mechanism.

[0023] By adopting the above technical solution, the operator controls the slider driving mechanism, the lifting mechanism and the sampling mechanism through the control panel to realize the automated sampling operation.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The sampling device in this application is arranged on a truss through a lifting mechanism and a slider. Through the cooperation of the slider driving mechanism, the lifting mechanism and the camera, the automated sampling operation is realized, the sampling work efficiency is improved, and the operation risk is reduced;

[0026] 2. In the present application, the sampling tube is arranged on the mounting plate, the piston in the sampling tube is connected to the piston driving mechanism, the mounting plate is movably connected to the connecting plate, and a limit plate is also arranged on the connecting plate. By adjusting the position of the mounting plate on the connecting plate, the sampling volume is adjusted, thereby improving the sampling work efficiency and sampling accuracy;

[0027] 3. A positioning mechanism is provided in the sampling mechanism of the present application, and the positioning mechanism can control the depth of the sampling tube into the liquid surface, thereby further improving the sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a tank truck sampling device in Example 1 of the present application.

[0029] Figure 2 It is a schematic diagram of the sampling mechanism structure of a tank truck sampling device in Example 1 of the present application.

[0030] Figure 3 It is a schematic diagram of the internal structure of a sampling mechanism of a tank truck sampling device in Example 1 of the present application.

[0031] Figure 4 It is a schematic diagram of the sampling mechanism structure of a tank truck sampling device in Example 2 of the present application.

[0032] Figure 5 It is a schematic diagram of the positioning mechanism structure of a tank truck sampling device in Example 2 of the present application.

[0033] Explanation of the reference numerals: 1. column; 2. truss; 3. slider drive mechanism; 4. slider; 5. lifting drive seat; 6. lifting screw; 7. camera; 8. sampling mechanism; 9. control panel; 10. slider drive motor; 11. screw; 12. lifting mechanism; 13. scale; 14. guide plate; 15. mounting plate; 16. piston drive mechanism; 17. locking screw; 18. stop plate; 19. sampling cylinder; 20. sampling tube; 21. positioning plate; 22. pressure sensitive sensor; 23. connecting rod; 24. float; 25. positioning mechanism; 26. connecting plate; 27. piston; 28. screw; 29. ​​drive seat; 30. adjusting screw; 31. adjusting mechanism; 32. adjusting drive seat; 33. catheter; 34. pressure sensor; 35. limit plate. DETAILED DESCRIPTION

[0034] The following is a description of the implementation of the present application by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0035] See also Figure 1-5 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] Embodiment 1:

[0038] This embodiment discloses a tank truck sampling device.

[0039] Reference Figure 1A tank truck sampling device comprises two symmetrically arranged columns 1, which are connected by a truss 2, a groove is opened in the middle of the truss 2 along the length direction, a slider 4 is arranged in the middle of the truss 2, the slider 4 slides freely along the groove, a screw 11 is rotatably arranged in the middle of the truss 2, the screw 11 passes through the slider 4 and is threadedly connected to the slider 4, a slider driving motor 10 is arranged on one side of one of the columns 1, the output shaft of the slider driving motor 10 is connected to the screw 11, a lifting drive seat 5 is arranged above the slider 4, a lifting screw 6 is passed through the middle of the lifting drive seat 5, the lifting drive seat 5 drives the lifting screw 6 to move up and down, and a sampling mechanism 8 is connected to the lower end of the lifting screw 6, a control panel 9 is arranged on one side of one of the columns 1, and the control panel 9 is electrically connected to the slider driving motor 10, the lifting drive seat 5 and the sampling mechanism 8.

[0040] Reference Figure 2 and Figure 3 The sampling mechanism 8 includes a limit plate 35, and connecting plates 26 are extended downward at both ends of the limit plate 35. The two connecting plates 26 penetrate the mounting plate 15, and the mounting plate 15 is movably connected to the connecting plate 26 up and down. A locking screw 17 is arranged on the side of the mounting plate 15, and the locking screw 17 penetrates the mounting plate 15 and is in contact with the side of the connecting plate 26. A stop plate 18 extends outward from the lower end of the two connecting plates 26. The limit plate 35, the connecting plate 26 and the stop plate 18 form a "F"-shaped structure. The sides of the two connecting plates 26 are both provided with scales 13. A sampling cylinder 19 is arranged in the middle of the bottom surface of the mounting plate 15. The sampling cylinder 19 is arranged between the two connecting plates 26. A sampling tube 20 is arranged in the middle of the bottom of the sampling cylinder 19. A piston 27 is arranged inside the sampling cylinder 19. A lead screw 28 is connected above the piston 27. A drive seat 29 is arranged in the middle of the upper part of the mounting plate 15. The lead screw 28 penetrates the drive seat 29 and is transmission-connected to the drive seat 29. The lead screw 28 The upper end is connected to a guide plate 14, which is movably arranged between two connecting plates 26. A positioning mechanism 25 is arranged on one side of the mounting plate 15, and the positioning mechanism 25 includes a float 24 arranged flush with the lower end of the sampling tube 20. A connecting rod 23 is connected above the float 24, and the connecting rod 23 penetrates and connects the mounting plate 15. A positioning plate 21 is arranged above the mounting plate 15, and a pressure-sensitive sensor 22 is arranged on the bottom surface of the positioning plate 21 corresponding to the connecting rod 23.

[0041] The implementation principle of a tank truck sampling device in this embodiment is as follows: when sampling a tank truck, firstly, the position of the mounting plate 15 on the connecting plate 26 is adjusted according to the sampling amount, so that the guide plate 14 is adjusted to the set scale, and then the position of the mounting plate 15 and the connecting plate 26 is fixed by the locking screw 17, and then the tank truck is driven to the bottom of the truss 2, so that the tank opening on the tank truck is located directly under the truss 2, and the operator observes the position of the tank opening through the camera 7 at the bottom of the slider 4, starts the slider driving mechanism 3, and the slider driving motor drives the slider to move the slider to the bottom of the truss 2. The movable screw 11 rotates, and the screw 11 drives the slider 4 to move along the truss 2 to the top of the tank mouth, and then the lifting mechanism 12 is started, and the lifting drive seat 5 drives the lifting screw 6 to move downward, and the lifting screw 6 drives the sampling mechanism 8 to move downward, and the sampling mechanism 8 enters the tank car through the tank mouth. When the sampling tube 20 contacts the liquid surface, the float 24 in the positioning mechanism 25 floats on the liquid surface. As the sampling mechanism 8 descends, the float 24 drives the connecting rod 23 to move toward the positioning plate 21. When the end of the connecting rod 23 contacts the liquid surface on the positioning plate 21, the float 24 drives the connecting rod 23 to move toward the positioning plate 21. When the pressure sensor 22 is in contact with the bottom surface of the limit plate 35, the driving seat 29 stops running, and a set amount of liquid is extracted from the inside of the sampling cylinder 19. After the sampling is completed, the lifting mechanism 12 drives the sampling mechanism 8 to move upward, and the sampling mechanism 8 is separated from the tank mouth. The slider 4 drives the sampling mechanism 8 to move to one end of the truss 2 under the drive of the slider driving mechanism 3, and the piston driving mechanism 16 drives the piston 27 to move downward, and the piston 27 discharges the liquid in the sampling cylinder 19, thereby realizing the sampling operation of the tank truck.

[0042] Embodiment 2:

[0043] Reference Figure 4 and Figure 5The difference between this embodiment and the first embodiment is that in this embodiment, an adjustment mechanism 31 is arranged on one side of the mounting plate 15, and the adjustment mechanism 31 includes an adjustment drive seat 32 arranged on the mounting plate 15, and an adjustment screw 30 is arranged in the middle of the adjustment drive seat 32, and the adjustment screw 30 is transmission-connected with the adjustment drive seat 32, and the lower end of the adjustment screw 30 is connected to the stop plate 18. When adjusting the sampling volume of the sampling tube 19, the control panel 9 controls the adjustment drive seat 32 to start, and the adjustment drive seat 32 drives the adjustment screw 30 to move up and down. The relative position between the mounting plate 15 and the connecting plate 26 is adjusted by adjusting the relative movement between the adjustment drive seat 32 and the adjustment screw 30, so as to adjust the distance between the mounting plate 15 and the limit plate 35 to realize automatic control of the sampling volume. The positioning mechanism 25 includes a device A positioning plate 21 is placed above the mounting plate 15, and a downwardly extending conduit 33 is arranged on the bottom surface of the positioning plate 21. The lower end of the conduit 33 is flush with the lower end of the sampling tube 20. The connection between the conduit 33 and the positioning plate 21 is sealed and a pressure sensor 34 is arranged. When the sampling tube 20 contacts the liquid surface, the conduit 33 is inserted into the liquid. Since the upper end of the conduit 33 is closed, as the sampling mechanism 8 descends, the gas pressure inside the conduit 33 increases, and the pressure sensor 34 detects the gas pressure. The operator can set the pressure through the control panel 9. When the pressure sensor 34 detects that the pressure inside the conduit 33 reaches the set pressure, the lifting mechanism 12 stops running, and the sampling tube 20 penetrates the liquid surface to the set depth, thereby realizing the control of the depth of the conduit 33 penetrating the liquid surface, which is convenient for realizing automated sampling operations.

[0044] In summary, the sampling device in the present application is arranged on the truss through a lifting mechanism and a slider, and the cooperation of the slider driving mechanism, the lifting mechanism and the camera realizes the automated sampling operation, improves the sampling work efficiency and reduces the operation risk; the sampling tube in the present application is arranged on the mounting plate, the piston in the sampling tube is connected to the piston driving mechanism, the mounting plate is movably connected to the connecting plate, and a limit plate is also arranged on the connecting plate. By adjusting the position of the mounting plate on the connecting plate, the sampling amount is adjusted, and the sampling work efficiency and sampling accuracy are improved; the positioning mechanism is arranged in the sampling mechanism of the present application, and the positioning mechanism can control the depth of the sampling tube into the liquid surface, further improving the sampling accuracy. Therefore, the present application effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0045] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present application shall still be included in the protection scope of the present application.

Claims

1. A tank truck sampling device, characterized in that: The invention comprises two symmetrically arranged columns (1), the two columns (1) being connected via a truss (2), a slider (4) being slidably arranged on the truss (2) along the length direction, a slider driving mechanism (3) being arranged on the truss (2) for driving the slider (4) to reciprocate along the truss (2), a sampling mechanism (8) being arranged below the slider (4), the sampling mechanism (8) being connected to the slider (4) via a lifting mechanism (12), a camera (7) being arranged on the bottom surface of the slider (4), and the sampling mechanism (8) The invention comprises a mounting plate (15), wherein the mounting plate (15) is connected to the lifting mechanism (12), a sampling cylinder (19) is arranged in the middle of the bottom surface of the mounting plate (15), a sampling tube (20) is connected in the middle of the lower end of the sampling cylinder (19), a piston (27) is arranged inside the sampling cylinder (19), and a piston driving mechanism (16) is arranged above the mounting plate (15) for driving the piston (27) to move up and down inside the sampling cylinder (19), wherein the piston driving mechanism (16) comprises a piston connected to the piston (27); A lead screw (28), a driving seat (29) for driving the lead screw (28) to move is arranged in the middle of the upper part of the mounting plate (15), a positioning mechanism (25) is arranged on one side of the mounting plate (15), and the positioning mechanism (25) is used to detect the depth of the sampling tube (20) inserted into the liquid, and the sampling mechanism (8) also includes a limit plate (35), the upper part of the limit plate (35) is connected to the lifting mechanism (12), the mounting plate (15) is arranged below the middle of the limit plate (35), and one end of the limit plate (35) is extended to A connecting plate (26) is extended downwardly, one end of the mounting plate (15) is movably connected to the connecting plate (26) in an upper and lower manner, a scale (13) is provided on the side of the connecting plate (26) from top to bottom, the upper end of the lead screw (28) is connected to a guide plate (14), an adjustment mechanism (31) is provided between the mounting plate (15) and the connecting plate (26), the adjustment mechanism (31) comprises an adjustment drive seat (32) provided on the mounting plate (15), and an adjustment lead screw (30) is provided through the middle of the adjustment drive seat (32).

2. A tank truck sampling device according to claim 1, characterized in that: The slider driving mechanism (3) comprises a screw rod (11) rotatably arranged inside the truss (2), the slider (4) is threadedly connected to the screw rod (11), and one end of the screw rod (11) is connected to a slider driving motor (10).

3. A tank truck sampling device according to claim 1, characterized in that: The lifting mechanism (12) adopts a screw lifting mechanism, and the lifting mechanism (12) comprises a lifting screw (6) that passes through the slider (4), the lower end of the lifting screw (6) is connected to the sampling mechanism (8), and the slider (4) is provided with a lifting drive seat (5) that drives the lifting screw (6) to move up and down.

4. A tank truck sampling device according to claim 1, characterized in that: The positioning mechanism (25) comprises a float (24) arranged flush with the lower end of the sampling tube (20), a connecting rod (23) is connected to the top of the float (24), the connecting rod (23) penetrates and connects to the mounting plate (15), a positioning plate (21) is arranged above the mounting plate (15), and a pressure-sensitive sensor (22) is arranged on the bottom surface of the positioning plate (21) corresponding to the connecting rod (23).

5. A tank truck sampling device according to claim 1, characterized in that: The positioning mechanism (25) comprises a positioning plate (21) arranged above the mounting plate (15); a downwardly extending conduit (33) is arranged on the bottom surface of the positioning plate (21); the lower end of the conduit (33) is flush with the lower end of the sampling tube (20); the connection between the conduit (33) and the positioning plate (21) is sealed and a pressure sensor (34) is arranged.

6. A tank truck sampling device according to claim 1, characterized in that: A control panel (9) is provided on one side of the column (1), and the control panel (9) is electrically connected to the slider driving mechanism (3), the lifting mechanism (12) and the sampling mechanism (8).

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