Dangerous chemical substance detection sampling device

Abstract

The invention relates to the technical field of sampling, in particular to a hazardous chemical substance detection sampling device which comprises a shell, a switching mechanism and a sampling mechanism, a fixed shaft is fixedly mounted in the shell, and a horizontal sampling opening and a vertical sampling opening are formed in the left side and the bottom of the shell respectively. The sampling bottles at different positions can be switched for sampling through mutual cooperation of the sampling mechanism and the switching mechanism, oil products at different positions or different depths can be conveniently sampled at a time, repeated sampling is not needed, the sampling efficiency is improved, meanwhile, the inclined state of the sampling bottles relative to the horizontal liquid level can be adjusted, and the sampling efficiency is improved. Therefore, sampling of different depths of the surface layer, the middle layer and the bottom is met. The sampling mechanism can be conveniently controlled to rotate on oil through the switching mechanism and the anti-static rope, so that sampling bottles at different positions can be switched, and a plurality of driving sources do not need to be additionally arranged.

Description

Technical Field

[0001] The invention relates to the technical field of sampling, and in particular to a hazardous chemicals detection sampling device. Background Art

[0002] Hazardous chemicals refer to chemical substances that are physically and chemically hazardous, biologically hazardous, and environmentally hazardous, such as gasoline. Gasoline is a common flammable hazardous chemical. Gasoline is generally stored in oil tanks. Extracting oil samples from the oil tanks for testing is an important step to ensure that the quality of the oil meets the standards.

[0003] Sampling is generally carried out using a sampling bottle. Existing sampling bottles mainly include two types: top opening and bottom opening. The sampling bottle is manually placed into the oil tank for sampling through an anti-static rope. The sampling bottle with a top opening is used for sampling the surface or upper layer of oil products, and the sampling bottle with a bottom opening is used for sampling the bottom layer of oil products. However, no matter which type of sampling bottle is used, only one sample can be collected at a time. When sampling oil products at different locations or at different depths, multiple sampling bottles need to be placed repeatedly, and a single sampling operation needs to be repeated, resulting in low overall sampling efficiency. In addition, different types of sampling bottles need to be replaced at different depths, further affecting the sampling efficiency.

[0004] There are also related sampling devices that replace manual sampling bottles for sampling. For example, the Chinese invention patent with announcement number CN217084338U discloses a sampling device for oil detection. A plurality of sampling chambers are arranged side by side from left to right in the sampling box. A driving motor is fixed on the inner wall of the top of the sampling chamber. A plurality of baffles fixed on the output end of the driving motor are arranged outside the sampling box. The motor drives the baffles to be misaligned with the liquid inlet hole so that the oil enters the sampling chamber. After the sampling is completed, the baffle is rotated to cover the liquid inlet hole and then close the liquid inlet hole. By setting up a plurality of sampling chambers, oil products of different depths can be sampled separately.

[0005] Although the above-mentioned sampling device can sample at different depths, it needs to control different motors to open and close during sampling, which requires high overall controllability and increases control costs; secondly, the opening of the sampling chamber is fixed upward, and this type of sampling chamber is only suitable for sampling surface or upper oil products. Even if the sampling device is lowered to the bottom of the oil tank, the opening of the sampling chamber is still at a certain height difference from the bottom of the oil tank, and the bottom of the oil tank cannot be effectively sampled. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a hazardous chemicals detection sampling device, including a shell, a switching mechanism, and a sampling mechanism. A fixed shaft is fixedly installed inside the shell, and a horizontal sampling port and a vertical sampling port are respectively opened on the left side and the bottom of the shell.

[0007] The sampling mechanism includes an inner shell body rotatably mounted on a fixed shaft, a driving member for rotating a fixed member, the outer wall of the inner shell body abuts against the inner wall of the outer shell body, and a plurality of fixed members for fixing a sampling bottle are rotatably arranged inside the inner shell body; a connecting port 1 and a connecting port 2 corresponding to the fixed members are provided on the inner shell body, and a closing component 1 and a closing component 2 for sealing the connecting port 1 and the connecting port 2 are provided on the inner shell body.

[0008] The switching mechanism is arranged outside the outer shell and drives the inner shell to rotate and switch the sampling bottle through the antistatic rope.

[0009] In one possible implementation, a handle mechanism is provided on the outside of the shell; the handle mechanism includes a plurality of connecting sections connected up and down by threaded connection, a handle is fixedly connected to the top of the uppermost connecting section, two fixed pulleys distributed up and down are rotatably installed on the right side of the uppermost connecting section, and a telescopic rod located between the upper and lower fixed pulleys is fixedly connected on the left side, a screw for locking the telescopic length of the telescopic rod is installed on the telescopic rod, and a fixed pulley is also rotatably installed on the end of the telescopic rod away from the connecting section.

[0010] In one possible implementation, an arc plate is fixedly installed on the top of the shell, the bottom of the lowest connecting section is hinged to the arc plate, a positioning bolt with a nut is fixedly connected to the outer wall of the connecting section, an arc plate is provided with an arc groove coaxial with the hinge point of the lowest connecting section, the positioning bolt is movably installed in the arc groove, and when the shell is rotated to a suitable angle, the arc plate is locked with the lowest connecting section by the cooperation of the positioning bolt and the nut.

[0011] In one possible implementation, the left side of the inner shell adopts a chamfered corner design; the fixing parts are evenly distributed along the circumference of the inner shell, and the fixing parts include a symmetrically distributed support frame installed on the inner ring wall of the inner shell, and the support frame is rotatably connected with a mounting sleeve, and the mouth section of the sampling bottle is inserted into the mounting sleeve.

[0012] In one possible implementation, the driving member includes a sleeve that is rotatably mounted on the outside of the fixed shaft and fixedly connected to the inner shell body, a movable plate is slidably mounted on the sleeve, an electric push rod is fixedly mounted on the sleeve for pushing the movable plate to move left and right, the rear end of the telescopic section of the electric push rod is fixedly connected to the movable plate, a gear is coaxially fixedly connected to the rotating shaft of the mounting sleeve, a rack corresponding to the gear is fixedly connected to the right side of the movable plate, the rack is meshed with the corresponding gear, the rack is slidably connected to a support frame, and a torsion spring is installed between the fixed shaft and the sleeve.

[0013] In one possible implementation, the driving member also includes a positioning bead that is slidably installed inside the movable plate and is symmetrically distributed up and down. A compression spring is fixedly connected between the side of the positioning bead away from the center of the movable plate and the inner wall of the movable plate. The shaft sleeve is provided with a groove that matches the positioning bead and is distributed on the left and right. A retaining ring is fixedly connected to the shaft sleeve and is located on the right side of the groove.

[0014] In one possible implementation, the fixing part also includes a limiting assembly, which includes a U-shaped limiting frame rotatably mounted on the mounting sleeve, the limiting frame limits the bottom section of the sampling bottle, a fixing sleeve is fixedly connected to the middle of the limiting frame, a U-shaped limiting rod is slidably mounted on the fixing sleeve, the limiting rod and the limiting frame are arranged in a cross, and two parallel sections of the limiting rod are fixedly connected to a baffle plate 1, and a reset spring 1 is fixedly connected between the baffle plate 1 and the inner wall of the fixing sleeve.

[0015] In one possible implementation, the sealing component 1 includes an L-shaped sealing plate that is slidably installed on the inner shell body left and right, a return spring 2 is connected between one end of the sealing plate extending radially along the inner shell body and the inner wall of the inner shell body, and the end of the sealing plate close to the axis of the inner shell body is fixedly connected to a push plate, the portion of the sealing plate extending axially along the inner shell body is used for sealing, and the push plate is in conflict with the right side wall of the mounting sleeve, the sealing component 1 and the sealing component 2 have the same structure, and the sealing plate in the sealing component 2 slides radially along the inner shell body.

[0016] In one possible implementation, the switching mechanism includes a support frame 2 fixedly connected to the bottom of the handle, a wire taking-up reel is rotatably mounted on the support frame 2, a turning handle located in front of the support frame 2 is coaxially fixedly connected to the front side of the wire taking-up reel, a positioning assembly for limiting the rotation angle of the wire taking-up reel is mounted on the turning handle, an anti-static rope is wound on the wire taking-up reel, a wire pay-off reel is fixedly mounted on the end of the shaft sleeve away from the inner shell, after the anti-static rope passes around three fixed pulleys in a zigzag shape from top to bottom, the bottom end of the anti-static rope moves through the interior of the shell, and is finally wound around the wire pay-off reel.

[0017] In one possible implementation, the positioning assembly includes a hollow column fixedly connected to the front side of the turning handle, a positioning rod is slidably installed inside the hollow column, a baffle plate 2 is fixedly connected to the positioning rod, a return spring 3 is fixedly connected between the front side of the baffle plate 2 and the inner wall of the hollow column, an insert block is fixedly connected to the rear end of the positioning rod, the insert block is slidably installed on the rear side of the turning handle, a plurality of circumferentially evenly distributed limiting grooves are provided on the front side of the support frame 2, the insert block is snap-fitted with the limiting grooves, and the distribution angle between adjacent limiting grooves is 45°.

[0018] The beneficial effects of the present invention are as follows: 1. The present invention can switch sampling bottles at different positions for sampling through the cooperation between the sampling mechanism and the switching mechanism, which is convenient for sampling oil products at different positions or different depths at one time, and does not require repeated sampling, thereby improving the sampling efficiency. At the same time, the inclination of the sampling bottle relative to the horizontal liquid surface can also be adjusted to meet the sampling of different depths of the surface, middle layer and bottom.

[0019] 2. The present invention adjusts the sampling bottle to a horizontal position, thereby facilitating rapid and effective surface or upper layer sampling; and adjusts the sampling bottle to a vertical position, thereby satisfying comprehensive and effective sampling of the bottom of the oil tank, thereby effectively improving the applicability of the sampling device.

[0020] 3. The present invention uses a switching mechanism and an anti-static rope to conveniently control the rotation of the sampling mechanism on the oil to switch sampling bottles at different positions, without the need to add several additional driving sources, thereby reducing control costs. At the same time, the overall control consistency of the sampling device is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 It is a cross-sectional view of the housing of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the inner shell of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the installation sleeve of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the driving member of the present invention.

[0026] Figure 6 It is a partial cross-sectional view of the limiting component of the present invention.

[0027] Figure 7 yes Figure 1 Enlarged view of point A in the middle.

[0028] Figure 8 yes Figure 2 Enlarged view of point B in the middle.

[0029] Fig. 9 yes Figure 2 Enlarged view of point C in the middle.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of the switching mechanism of the present invention.

[0031] In the figure: 1, housing; 11, horizontal sampling port; 12, vertical sampling port; 13, sealing cover plate; 2, grip mechanism; 21, connecting section; 22, handle; 23, fixed pulley; 24, telescopic rod; 25, arc plate; 26, positioning bolt; 3, fixed shaft; 31, torsion spring; 4, sampling mechanism; 41, inner housing; 42, support frame 1; 43, mounting sleeve; 44, driving member; 441, shaft sleeve; 442, movable plate; 443, electric push rod; 444, rack; 445, gear; 446, positioning bead; 447, compression spring; 448, retaining ring; 45. Limiting assembly; 451. Limiting frame; 452. Fixing sleeve; 453. Limiting rod; 454. Blocking piece 1; 455. Reset spring 1; 46. Connecting port 1; 47. Connecting port 2; 48. Closing assembly 1; 481. Sealing plate; 482. Reset spring 2; 483. Push plate; 5. Switching mechanism; 51. Support frame 2; 52. Wire take-up reel; 53. Turning handle; 54. Positioning assembly; 541. Hollow column; 542. Positioning rod; 543. Blocking piece 2; 544. Reset spring 3; 545. Insert block; 546. Limiting groove; 6. Wire pay-off reel. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1 and Figure 2 A hazardous chemical detection sampling device comprises a shell 1 and a handle mechanism 2 installed on the shell 1, a fixed shaft 3 is fixedly installed inside the shell 1, a sampling mechanism 4 is arranged on the fixed shaft 3, a switching mechanism 5 is installed on the handle mechanism 2 for driving the sampling mechanism 4 to rotate through an anti-static rope to switch the sampling bottle, a horizontal sampling port 11 is opened on the lower left side of the shell 1, a vertical sampling port 12 is opened on the bottom of the shell 1, a sealing cover plate 13 is threadedly connected to the right side of the shell 1, and the sealing cover plate 13 is movably sleeved with the right end of the fixed shaft 3.

[0034] See also Figure 1 and Figure 7The handle mechanism 2 includes a plurality of connecting sections 21 connected up and down by threaded connection. A handle 22 is fixedly connected to the top of the top connecting section 21. A fixed pulley 23 distributed up and down is rotatably installed on the right side of the top connecting section 21, and a telescopic rod 24 located between the two fixed pulleys 23 is fixedly connected to the left side. A screw for locking its telescopic length is installed on the telescopic rod 24. The fixed pulley 23 is also rotatably installed on the end of the telescopic rod 24 away from the connecting section 21. An arc plate 25 is fixedly installed on the top of the shell 1. The bottom of the bottom connecting section 21 is hinged to the arc plate 25. A positioning bolt 26 with a nut is fixedly connected to the outer wall of the connecting section 21. An arc-shaped slide groove coaxial with the hinge point of the bottom connecting section 21 is opened on the arc plate 25. The positioning bolt 26 is movably installed in the arc-shaped slide groove. When the shell 1 is rotated to a suitable angle, the arc plate 25 is locked with the bottom connecting section 21 by the cooperation of the nut and the positioning bolt 26.

[0035] When in use, an appropriate number of connecting segments 21 can be spliced ​​according to the maximum sampling depth, so that the sampling device can enter oil tanks of different depths for sampling. While the total number of connecting segments 21 is changed, the total length of the telescopic rod 24 is adjusted to make the length of the anti-static rope between the top fixed pulley 23 and the outer shell 1 adapt to the change in the total length of several connecting segments 21, but the anti-static rope between the top fixed pulley 23 and the outer shell 1 always remains taut.

[0036] See also Figure 1 , Figure 2 and Figure 3 The sampling mechanism 4 includes an inner shell 41 rotatably mounted on the fixed shaft 3, the left side of the inner shell 41 adopts a chamfered design, the outer wall of the inner shell 41 conflicts with the inner wall of the outer shell 1, and a plurality of fixing parts for fixing the sampling bottle are rotatably arranged inside the inner shell 41, and the fixing parts are evenly distributed along the circumference of the inner shell 41; the fixing parts include a symmetrically distributed support frame 42 installed on the inner ring wall of the inner shell 41, and a mounting sleeve 43 is rotatably connected between the support frame 42, the bottle mouth section of the sampling bottle is inserted into the mounting sleeve 43, and a driving member 44 for driving the mounting sleeve 43 to rotate is installed on the inner shell 41, and the fixing part also includes a limiting component 45 for limiting the bottom section of the sampling bottle.

[0037] See also Figure 2 , Figure 3 and Figure 4The left side wall and the outer ring wall of the inner shell 41 are respectively provided with a communication port 1 46 and a communication port 2 47, which are both in one-to-one correspondence with the mounting sleeve 43. When the mounting sleeve 43 rotates to be parallel to the axis of the inner shell 41, the bottle mouth of the sampling bottle matches with the communication port 1 46. When the mounting sleeve 43 rotates to be parallel to the corresponding radial line of the inner shell 41, the bottle mouth of the sampling bottle matches with the communication port 2 47. The communication port 1 46 and the communication port 2 47 are respectively matched with the horizontal sampling port 11 and the vertical sampling port 12. The inner shell 41 is provided with a sealing component 1 48 and a sealing component 2 for implementing blocking, which are in one-to-one correspondence with the communication port 1 46 and the communication port 2 47. It should be noted that a rubber ring for sealing is installed on the bottle mouth of the sampling bottle to improve the sealing performance of the sampling bottle during the rotation and matching process to prevent the oil from flowing out, and the bottle mouth of the sampling bottle is always in contact with the inner wall of the inner shell 41.

[0038] See also Figure 2 , Figure 4 , Figure 5 and Figure 8 The driving member 44 includes a sleeve 441 that is rotatably mounted on the outside of the fixed shaft 3 and fixedly connected to the inner shell 41, a movable plate 442 is slidably mounted on the sleeve 441, an electric push rod 443 that pushes the movable plate 442 to move left and right and a power supply for the electric push rod 443 are fixedly mounted on the sleeve 441, the left end of the telescopic section of the electric push rod 443 is fixedly connected to the movable plate 442, a gear 445 is coaxially fixedly connected to the rotating shaft of the mounting sleeve 43, a rack 444 corresponding to the gear 445 is fixedly connected to the right side of the movable plate 442, the rack 444 is meshed with the corresponding gear 445, the rack 444 is slidably connected to the corresponding support frame 42 left and right, a torsion spring 31 is installed between the fixed shaft 3 and the sleeve 441, and each support frame 42 corresponds to a gear 445.

[0039] The movable plate 442 is pushed to move rightward by the electric push rod 443, and the movable plate 442 drives the rack 444 to move rightward, and the rack 444 drives the gear 445 to rotate, and the gear 445 drives the mounting sleeve 43 and the sampling bottle to rotate, and the mounting sleeve 43 is rotated to be parallel to the axis of the inner shell 41, and the mounting sleeve 43 is used to drive the sampling bottle to switch between the two states of being parallel to the axis of the inner shell 41 and being parallel to the radial line of the inner shell 41, so as to facilitate the sampling of different positions by the sampling bottle. In order to make it easier to sample the upper layer of the oil tank, the positioning bolt 26 can be loosened first, and then the outer shell 1 can be rotated clockwise by a certain angle to make the horizontal sampling port 11 tilt upward, and then the positioning bolt 26 can be tightened to fix the arc plate 25 and the connecting section 21 together, so that when sampling, it is easier for the oil in the upper layer to enter the horizontal sampling port 11.

[0040] See also Figure 2 , Figure 5 and Figure 8 The movable plate 442 is internally installed with symmetrically distributed positioning beads 446 for sliding up and down. A compression spring 447 is fixedly connected between the side of the positioning beads 446 away from the center of the movable plate 442 and the inner wall of the movable plate 442. The shaft sleeve 441 is provided with grooves matching the positioning beads 446 and distributed on the left and right. A retaining ring 448 located on the right side of the groove is fixedly connected to the shaft sleeve 441. A wire pay-off reel 6 is fixedly mounted on the end of the shaft sleeve 441 away from the inner shell body 41.

[0041] When the mounting sleeve 43 is parallel to the radial line of the inner shell 41, the positioning bead 446 cooperates with the groove on the left, and the movable plate 442 is limited by the positioning bead 446. When the movable plate 442 moves to the right, the positioning bead 446 is separated from the groove on the left under the action of the thrust. At this time, the compression spring 447 is in a compressed and contracted state. When the mounting sleeve 43 is rotated to be parallel to the axis of the inner shell 41, the movable plate 442 contacts the retaining ring 448. At this time, the rebound force of the compression spring 447 is used to push the positioning bead 446 to cooperate with the groove on the right, thereby limiting the position of the movable plate 442 again.

[0042] See also Figure 4 and Figure 6 The limiting assembly 45 includes a U-shaped limiting frame 451 which is rotatably mounted on the mounting sleeve 43. After the sampling bottle is mounted on the mounting sleeve 43, the limiting frame 451 is rotated to clamp the bottom section of the sampling bottle for limiting. A fixing sleeve 452 is fixedly connected to the middle of the limiting frame 451, and a U-shaped limiting rod 453 is slidably mounted on the fixing sleeve 452. The limiting rod 453 and the limiting frame 451 are arranged in a cross. The two parallel sections of the limiting rod 453 are fixedly connected to a blocking piece 454, and a return spring 455 is fixedly connected between the blocking piece 454 and the inner wall of the fixing sleeve 452.

[0043] See also Figure 2 , Figure 4 and Figure 6 When installing the sampling bottle, the mounting sleeve 43 is parallel to the axis of the inner shell 41. First, the limiting frame 451 is rotated to a state perpendicular to the mounting sleeve 43, and then the bottle mouth end of the sampling bottle is inserted into the mounting sleeve 43, and then the limiting rod 453 is pulled in the direction away from the limiting frame 451. At this time, the reset spring 455 is in a compressed and contracted state, and then the limiting frame 451 is rotated to a state parallel to the mounting sleeve 43, and the limiting frame 451 is rotated to hold the bottom section of the sampling bottle, and then the pull rod is released. At this time, the limiting rod 453 moves in the direction close to the mounting sleeve 43 under the push of the reset spring 455, so that the limiting rod 453 is clamped at the bottom section of the sampling bottle to prevent the limiting frame 451 from rotating relative to the sampling bottle, and the limiting frame 451 is used to fully limit the sampling bottle and the mounting sleeve 43 to ensure the firmness of the sampling bottle installation.

[0044] When sampling is completed, the sampling bottle is removed with the bottle mouth facing upward. When removing, first pull the limit rod 453 downward to release the limit on the sampling bottle. While manually holding the sampling bottle still, rotate the limit frame 451 ninety degrees so that the limit frame 451 no longer limits the sampling bottle, and then pull the sampling bottle downward from the installation sleeve 43.

[0045] See also Figure 2 , Figure 3 and Fig. 9 The closing component 48 includes an L-shaped sealing plate 481 which is slidably installed on the inner shell 41 left and right. A return spring 482 is fixedly connected between one end of the sealing plate 481 extending radially along the inner shell 41 and the inner wall of the inner shell 41, and a push plate 483 is fixedly connected to the side of the sealing plate 481 close to the axis of the inner shell 41. The push plate 483 is in conflict with the right side wall of the mounting sleeve 43. The portion of the sealing plate 481 extending axially along the inner shell 41 is used for blocking. The closing component 1 48 has the same structure as the closing component 2, and the sealing plate 481 in the closing component 2 slides radially along the inner shell 41.

[0046] In the initial state, the mounting sleeve 43 is parallel to the axis of the inner shell 41. At this time, the mounting sleeve 43 keeps pushing the push plate 483 in the closing component 1 48, so that the connecting port 1 46 is in an open state, but at this time, the sealing plate 481 in the closing component 2 is in a state of blocking the connecting port 2 47. In the process of the mounting sleeve 43 being converted to be parallel to the radial line of the inner shell 41, the pushing force of the mounting sleeve 43 in the closing component 1 48 on the corresponding push plate 483 gradually decreases, and the rebound force of the return spring 2 482 is used to push the corresponding sealing plate 481 to move away from the axis of the inner shell 41, so that the sealing plate 481 blocks the connecting port 1 46. At the same time, the push plate 483 in the closing component 2 moves to the right under the push of the mounting sleeve 43, and the push plate 483 drives the sealing plate 481 to move to the right, so that the connecting port 2 47 is opened. At this time, the corresponding return spring 2 482 is compressed and contracted.

[0047] See also Figure 1 and Fig.10 The switching mechanism 5 includes a supporting frame 51 fixedly connected to the bottom of the handle 22, a take-up drum 52 is rotatably mounted on the supporting frame 51, a turning handle 53 located in front of the supporting frame 51 is coaxially fixedly connected to the front side of the take-up drum 52, a positioning assembly 54 for limiting the rotation angle of the take-up drum 52 is installed on the turning handle 53, an anti-static rope is wound on the take-up drum 52, the anti-static rope is in a zigzag shape from top to bottom, passes through the three fixed pulleys 23 in turn, and then moves through the inside of the housing 1, and finally is wound on the pay-off drum 6.

[0048] See also Figure 1 , Figure 2 and Fig.10The positioning assembly 54 includes a hollow column 541 fixedly connected to the front side of the turning handle 53, a positioning rod 542 is installed inside the hollow column 541 for sliding back and forth, a baffle 2 543 is fixedly connected to the positioning rod 542, a return spring 3 544 is fixedly connected between the front side of the baffle 2 543 and the inner wall of the hollow column 541, an insert block 545 is fixedly connected to the rear end of the positioning rod 542, the insert block 545 is connected to the turning handle 53 for sliding back and forth, a plurality of circumferentially evenly distributed limiting grooves 546 are provided on the front side of the supporting frame 2 51, the insert block 545 is engaged with the limiting groove 546, and when the turning handle 53 drives the insert block 545 to rotate clockwise from one limiting groove 546 to the next adjacent limiting groove 546, the anti-static rope just drives the pay-off reel 6 to rotate 45°.

[0049] See also Figures 1 to 10 , in the initial state, the sampling bottle is parallel to the axis of the inner shell 41, the horizontal sampling port 11 is located between two adjacent sampling bottles and the angle between them is 45°, the bottle mouth of the sampling bottle is butt-jointed with the connecting port 146, at this time the inner shell 41 blocks the horizontal sampling port 11 and the vertical sampling port 12 to prevent the oil from entering the outer shell 1, and then the outer shell 1 is lowered into the oil, when the upper and middle layers of the oil are to be sampled, after the outer shell 1 is moved to the position where sampling is required, first release the fixation of the positioning component 54 on the turning handle 53, and then drive the take-up reel 52 to rotate clockwise by rotating the turning handle 53, so that the take-up reel 52 reels the anti-static rope, and when the turning handle 53 drives the plug block 545 to rotate clockwise from one limit slot 546 to the next adjacent limit slot 546, the plug block 545 is inserted into the inner shell 41. The block 545 is inserted into the corresponding limit groove 546 under the action of the rebound force of the reset spring three 544, and the wire pay-off reel 6 drives the inner shell 41 to rotate 45°. At this time, one of the connecting ports 1 46 and the connecting port 2 47 is aligned with the horizontal sampling port 11 and the vertical sampling port 12 respectively, and the oil enters the corresponding sampling bottle through the horizontal sampling port 11 and the connecting port 1 46. After the sampling is completed, first release the fixation of the positioning component 54 on the turning handle 53, and then continue to rotate the turning handle 53 to drive the wire take-up reel 52 to rotate clockwise, so that the turning handle 53 drives the insert block 545 to rotate clockwise to the next limit groove 546, so that the inner shell 41 blocks the horizontal sampling port 11 and the vertical sampling port 12 again, and then move the outer shell 1 to the position where sampling is required, and repeat the above steps to perform sampling multiple times.

[0050] When sampling the oil product at the bottom layer, first, the sampling bottle is driven to flip ninety degrees by the driving member 44 so that the sampling bottle is parallel to the radial line corresponding to the inner shell 41. At this time, the bottle mouth of the sampling bottle is docked with the second connecting port 47. After the outer shell 1 is moved to the bottom of the oil tank, the take-up reel 52 is driven to rotate by rotating the handle 53. The lowest connecting port 1 46 and the second connecting port 47 are respectively aligned with the horizontal sampling port 11 and the vertical sampling port 12, so that the oil product enters the lowest sampling bottle through the vertical sampling port 12 and the second connecting port 47. After the sampling is completed, the handle 53 is rotated again to drive the take-up reel 52 to rotate, so that the inner shell 41 blocks the horizontal sampling port 11 and the vertical sampling port 12 again.

[0051] Finally, take the outer shell 1 out of the oil tank, then rotate and open the sealing cover plate 13, and disassemble the sampling bottle with the bottle mouth facing upward. After all the sampling bottles are taken out, pull the positioning rod 542 to move forward, and the positioning rod 542 pulls the plug 545 to move forward and separate from the limit groove 546. At this time, the resilience of the torsion spring 31 is used to drive the sleeve 441 to rotate in the opposite direction, so that the pay-off reel 6 reels the anti-static rope, and the take-up reel 52 unwinds the anti-static rope, so that the inner shell 41 rotates back to the initial state, which is convenient for subsequent sampling.

[0052] It should be noted that in order to more conveniently operate the rotation of the handle 53, the insert block 545 can be set as a wedge block structure, and the inclined surface of the insert block 545 cooperates with the limit groove 546. During the rotation of the handle 53, under the action of the reset spring 544, the insert block 545 can adaptively engage and disengage with the limit groove 546.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hazardous chemicals detection sampling device, comprising a housing, characterized in that: A horizontal sampling port and a vertical sampling port are respectively provided on the left side and the bottom of the shell; The sampling mechanism includes an inner shell rotatably disposed in the outer shell, a driving member for rotating the fixing member, the outer wall of the inner shell abuts against the inner wall of the outer shell, and a plurality of fixing members for fixing the sampling bottle are rotatably disposed inside the inner shell; The inner shell is provided with a communication port 1 and a communication port 2 corresponding to the fixing member one by one, and the inner shell is provided with a closing component 1 and a closing component 2 for sealing the communication port 1 and the communication port 2; When the fixing piece is parallel to the axis of the inner shell, the mouth of the sampling bottle matches with the first connecting port; when the fixing piece is parallel to the corresponding radial line of the inner shell, the mouth of the sampling bottle matches with the second connecting port; When the driving member causes the fixing member to rotate and switch the state, the closing component 1 and the closing component 2 are opened or adaptively blocked under the pushing of the installation sleeve; The switching mechanism is arranged outside the outer shell and drives the inner shell to rotate and switch the sampling bottle through the anti-static rope.

2. A hazardous chemicals detection sampling device according to claim 1, characterized in that: A handle mechanism is arranged on the outside of the shell; the handle mechanism comprises a plurality of connecting sections connected up and down by threaded connection, a handle is fixedly connected to the top of the uppermost connecting section, the right side of the uppermost connecting section is rotatably mounted with fixed pulleys distributed up and down, and the left side is fixedly connected with a telescopic rod located between the two fixed pulleys, the telescopic rod has a self-locking function, and the end of the telescopic rod away from the connecting section is also rotatably mounted with a fixed pulley.

3. A hazardous chemicals detection sampling device according to claim 2, characterized in that: An arc plate is fixedly installed on the top of the shell, the bottom of the lowest connecting section is hinged to the arc plate, a positioning bolt with a nut is fixedly connected to the outer wall of the connecting section, an arc groove coaxial with the hinge point of the lowest connecting section is opened on the arc plate, and the positioning bolt is movably installed in the arc groove.

4. A hazardous chemicals detection sampling device according to claim 1, characterized in that: A fixed shaft is fixedly installed inside the outer shell, and the inner shell is rotatably installed on the fixed shaft. The left side of the inner shell adopts a rounded corner design.

5. A hazardous chemicals detection sampling device according to claim 4, characterized in that: The fixing parts are evenly distributed along the circumference of the inner shell, and the fixing parts include a symmetrically distributed support frame installed on the inner ring wall of the inner shell, and a mounting sleeve is rotatably connected between the support frames, and the bottle mouth section of the sampling bottle is inserted into the mounting sleeve.

6. A hazardous chemicals detection sampling device according to claim 5, characterized in that: The driving member includes a sleeve that is rotatably mounted on the outside of the fixed shaft and fixedly connected to the inner shell body, a movable plate is slidably mounted on the sleeve, an electric push rod that is fixedly mounted on the sleeve and is fixedly connected to the movable plate, a gear is coaxially fixedly connected to the rotating shaft of the mounting sleeve, a rack corresponding to the gear one by one is fixedly connected to the right side of the movable plate, the rack is meshed with the corresponding gear, and a torsion spring is installed between the fixed shaft and the sleeve.

7. A hazardous chemicals detection sampling device according to claim 5, characterized in that: The fixing part also includes a limiting component, which includes a U-shaped limiting frame rotatably mounted on the mounting sleeve, the limiting frame limits the bottom section of the sampling bottle, a fixing sleeve is fixedly connected to the middle of the limiting frame, a U-shaped limiting rod is slidably mounted on the fixing sleeve, the limiting rod and the limiting frame are arranged in a cross, two parallel sections of the limiting rod are fixedly connected to a blocking piece 1, and a reset spring 1 is fixedly connected between the blocking piece 1 and the inner wall of the fixing sleeve.

8. A hazardous chemicals detection sampling device according to claim 5, characterized in that: The sealing component 1 includes an L-shaped sealing plate which is slidably installed on the inner shell body left and right. A return spring 2 is connected between one end of the sealing plate extending radially along the inner shell body and the inner wall of the inner shell body, and the end of the sealing plate close to the axis of the inner shell body is fixedly connected to a push plate. The part of the sealing plate extending axially along the inner shell body is used for sealing, and the push plate is in conflict with the right side wall of the mounting sleeve. The structure of the sealing component 1 is the same as that of the sealing component 2, and the sealing plate in the sealing component 2 slides radially along the inner shell body.

9. A hazardous chemicals detection sampling device according to claim 2, characterized in that: The switching mechanism includes a support frame 2 fixedly connected to the bottom of the handle, a take-up reel is rotatably mounted on the support frame 2, a turning handle located in front of the support frame 2 is coaxially fixedly connected to the front side of the take-up reel, a positioning assembly for limiting the rotation angle of the take-up reel is mounted on the turning handle, an anti-static rope is wound on the take-up reel, a pay-off reel is fixedly mounted on the end of the shaft sleeve away from the inner shell, the anti-static rope passes through three fixed pulleys in a zigzag shape from top to bottom, and then moves through the inside of the shell, and is finally wound on the pay-off reel.

10. A hazardous chemicals detection sampling device according to claim 9, characterized in that: The positioning assembly includes a hollow column fixedly connected to the front side of the turning handle, a positioning rod is slidably installed inside the hollow column, a baffle plate 2 is fixedly connected to the positioning rod, a return spring 3 is connected between the front side of the baffle plate 2 and the inner wall of the hollow column, an insert block is fixedly connected to the rear end of the positioning rod, and a plurality of circumferentially evenly distributed limiting grooves are provided on the front side of the support frame 2, the insert block is snap-fitted with the limiting grooves, and the distribution angle between adjacent limiting grooves is 45°.

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