A polyester polyol sampling device

Abstract

The invention discloses a polyester polyol sampling device, which relates to the technical field of sampling devices and comprises a reactor body. The position limiting of an arc block can be released by an auxiliary component. At the same time, the auxiliary component can also drive a clamping component during operation, so that the clamping component and the arc block can release the fixation of a sampling tube at the same time, so that the sampling tube can be disassembled. The sampling tube can be disassembled and cleaned after the experiment by using a fixing component and the auxiliary component. At the same time, the fixing effect of the sampling tube can be improved after installation by using the auxiliary component. At the same time, the sealing between the sampling tube and the disc can be increased by using an air bag. When the fixing component is disassembling the sampling tube, it cooperates with the clamping component to operate, so as to realize the disassembly of the sampling tube.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a polyester polyol sampling device. Background Art

[0002] Polyester polyol is an important chemical raw material, which is widely used in the production of polyurethane (PU) materials, especially in the manufacture of foams, coatings, adhesives, elastomers and other products. Here is some basic information about polyester polyol: Chemical structure: Polyester polyol is generated by polycondensation reaction of dibasic acid and polyol. Dibasic acid such as adipic acid, phthalic acid (PTA) or terephthalic acid (terephthalic acid), polyol such as ethylene glycol, propylene glycol, butanediol, etc.; The molecular structure of polyester polyol contains ester group (-COO-) and hydroxyl group (-OH); Synthesis process: Synthesis of polyester polyol usually involves melt esterification reaction, in which dibasic acid and polyol react at high temperature to generate low ester mixture. As the reaction proceeds, water is gradually evaporated, the temperature in the kettle gradually increases, and the vacuum degree gradually decreases to promote the formation of low ester mixture. After the reaction is completed, polyester polyol usually needs to undergo post-processing steps such as filtration, degassing, and stabilization; polyester polyol has good chemical stability and mechanical properties.

[0003] When sampling polyester polyols, the sampling tubes on the existing sampling devices are mostly fixed and cannot be disassembled for cleaning. After sampling, if there is polyester polyol remaining inside the fixed sampling tube, it may solidify or adhere before the next sampling, causing internal contamination of the sampling tube and affecting the purity and accuracy of the sample. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that most of the sampling tubes on the existing sampling devices are fixed, and to propose a polyester polyol sampling device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technology: a polyester polyol sampling device: comprising a reactor body, a circulation tube is fixedly connected to one side of the bottom end of the reactor body, a sampling tube is arranged on one side of the circulation tube, a discharge tube is arranged on the side of the sampling tube away from the circulation tube, and fixing components are arranged on both sides of the sampling tube, the fixing components include a support frame used in conjunction with the sampling tube, both sides of the support frame are fixedly connected with a disc, the opposite surfaces of the two discs are rotatably connected with a rotating plate, the surface of the disc is symmetrically provided with an arc block and a first spring, an auxiliary component and a clamping component used in conjunction with the arc block, the auxiliary component can release the limit of the arc block, and the auxiliary component will also drive the clamping component during operation, so that the clamping component and the arc block can release the fixation of the sampling tube at the same time, so that the sampling tube can be disassembled;

[0006] It also includes a rotating component arranged on the disc, the rotating component includes a second gear fixedly mounted on the rotating shaft of the rotating plate, a T-shaped frame is slidably connected to the surface of the disc, a first winding wheel is arranged on the surface of the disc, a second rope is wound around the surface of the first winding wheel, a traction assembly is arranged on the surface of the disc, and a cleaning assembly used in conjunction with the traction assembly.

[0007] As a further description of a polyester polyol sampling device of the above technology:

[0008] The auxiliary component includes a concave frame hinged on the disc, and both sides of the inner concave surface of the concave frame are slidably connected with a lifting plate, and the side of the lifting plate close to the arc block is fixedly connected to a limit plate and an airbag, and a limit rod is symmetrically installed on the other side of the lifting plate, and the surface of each limit rod is sleeved with a second spring, and the upper and lower ends of the outer wall of the concave frame are provided with a second winding wheel, the second winding wheel is wound with a first rope, and the first rope is fixedly connected to a first rack, and one side of the concave frame is symmetrically provided with mounting grooves, and the interior of each mounting groove is rotatably connected with a connecting plate, and both ends of the connecting plate are slidably connected with vertical plates, and one side of one of the connecting plates is fixedly connected with a clamping plate.

[0009] As a further description of a polyester polyol sampling device of the above technology:

[0010] Limiting grooves are provided at the upper and lower ends of each arc block, and the size of the limiting grooves is consistent with the limiting plates. The airbag is located between the limiting plates, and one end of the limiting rod extends to the outside of the concave frame. The second spring is located between the lifting plate and the concave surface of the concave frame. The outer wall of the concave frame is located between the two first racks and is rotatably connected to a first gear, and the first gear and the two first racks are meshed with each other.

[0011] As a further description of a polyester polyol sampling device of the above technology:

[0012] The clamping plate is engaged with one end of the lifting plate, the shape of the clamping plate is "concave", both ends of the clamping plate close to the lifting plate are set as arc surfaces, the other end is connected to the lifting plate, and the connection between the two connecting plates is provided with a hinge seat.

[0013] As a further description of a polyester polyol sampling device of the above technology:

[0014] The clamping assembly includes two groups of semicircular blocks and a fixed block arranged on the rotating plate, each group of the fixed blocks is slidably connected to a support block and a sleeve, a third spring is fixedly connected between the support block and the fixed block, one side of the support block is fixedly connected to an extension plate, a side of the extension plate away from the support block is hinged to a square plate, a positioning block is inserted into the sleeve, and each group of the semicircular blocks is fixedly connected to a clamping block.

[0015] As a further description of a polyester polyol sampling device of the above technology:

[0016] One side of the support block is set as an inclined surface, which contacts the bottom end of the sleeve. A rotating shaft is set between the two ends of the square plate and the extension plate, and a torsion spring is sleeved on the surface of the rotating shaft. The positioning block extends to the outside of the sleeve, and one side of this end is set as an arc surface. A return spring is set between the positioning block and the sleeve. A positioning groove is opened on the clamping block, and the size of the positioning groove is consistent with that of the positioning block.

[0017] As a further description of a polyester polyol sampling device of the above technology:

[0018] The traction assembly includes a cylinder rotatably mounted on the disc, a third gear and a first ratchet are fixedly connected to the cylinder, there are two first ratchet wheels, one side of each of the first ratchet wheels is wrapped with a third rope, two sets of mounting frames are provided on the side of the disc away from the cylinder, the top end of the mounting frame is slidably connected to a second rack, the top end of the mounting frame is rotatably connected to a second ratchet, and the top end of the second ratchet is fixed to a cylinder by a buckle.

[0019] As a further description of a polyester polyol sampling device of the above technology:

[0020] One end of the third rope is connected to the second rack, the second rack is meshed with the second ratchet, and a fifth spring is arranged between the second rack and the mounting frame.

[0021] As a further description of a polyester polyol sampling device of the above technology:

[0022] The cleaning assembly includes a circular plate that is engaged in the interior of the cylinder, a hanging ring and a first sponge cover are provided on the circular plate, a side of the circular plate away from the hanging ring is connected to a long plate via a hinge seat, an end of the long plate away from the hinge seat is provided with a second sponge cover, a side of the circular plate close to the long plate is provided with a rectangular plate, and a fourth spring is fixedly connected between the long plate and the rectangular plate.

[0023] As a further description of a polyester polyol sampling device of the above technology:

[0024] The rectangular plate and the long plate are equidistantly arranged, the size of the circular plate is smaller than the size of the openings on both sides of the sampling tube, a draw hook is placed on the support frame, and the length of the draw hook is greater than the sampling tube.

[0025] In summary, due to the use of the above-mentioned technology, the polyester polyol sampling device has the following beneficial effects:

[0026] 1. By providing a fixing component, the sampling tube can be disassembled and cleaned after the experiment. By pulling one of the first ropes, it drives the first rack and the lifting plate matched therewith to start moving. The first gear rotates through meshing, so that the other set of first racks and the lifting plate moves, so that the two sets of lifting plates move in opposite directions. While moving, the limit plate and the airbag are driven to disengage from the arc block, thereby releasing the arc block from limiting the openings at both ends of the sampling tube. At the same time, when the concave frame rotates, it will also contact the square plate and push it, so that it drives the support block to move, so that the inclination of the bottom of the sleeve and the top inclined surface of the support block gradually decreases, thereby causing the sleeve to descend and disengage from the clamping block, so that the semicircular block can be opened through the rotating shaft, thereby releasing the fixation on the middle part of the sampling tube, and then the sampling tube can be taken out to complete the disassembly.

[0027] 2. By providing a rotating component and adding a sampling tube to the rotating plate, after the sampling tube after the experiment is disassembled, the temporarily stored sampling tube can be replaced with the disassembled sampling tube by simply rotating the rotating plate, and the sampling can be done again without waiting, and then the cleaned sampling tube can be installed on the rotating plate again. At the same time, when the rotating plate rotates through the rotating shaft, the second gear on the rotating shaft will also rotate, and the third gear, the cylinder and the first ratchet will rotate synchronously through meshing, and the third rope will be pulled to move the second rack, and the second ratchet will drive the cylinder to rotate through meshing to rotate the cleaning component and correspond to the opening on one side of the sampling tube;

[0028] At this time, the hook is inserted into the opening on one side of the temporarily stored sampling tube and extended out from the opening on the other side, and the hook is connected to the hanging ring. The hook drives the hanging ring to move the circular plate from the cylinder to the opening of the sampling tube, and the inner wall of the opening of the sampling tube is wiped and cleaned by the first sponge sleeve. After moving to the middle of the sampling tube, one end of the long plate is tilted up by the reaction force of the fourth spring, and the inner wall of the middle part of the sampling tube is cleaned by the second sponge sleeve, and then the circular plate is moved out from the opening on the other side of the sampling tube, so that the circular plate is located in the cylinder with this end opening for storage, thereby completing the cleaning of the temporarily stored sampling tube, which can prevent water droplets from remaining on the inner wall of the sampling tube after cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It shows an overall schematic diagram provided according to an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of a fixing component provided in an embodiment of the present invention is shown;

[0031] Figure 3 A schematic diagram of a surface of one side of a disk provided in an embodiment of the present invention is shown;

[0032] Figure 4 A schematic diagram of an auxiliary component provided according to an embodiment of the present invention is shown;

[0033] Figure 5 A schematic diagram of a clamping assembly provided according to an embodiment of the present invention is shown;

[0034] Figure 6 A schematic diagram of a cross-section of a fixing block provided in an embodiment of the present invention is shown;

[0035] Figure 7 A schematic diagram of a rotating component provided according to an embodiment of the present invention is shown;

[0036] Figure 8 A schematic diagram of a traction assembly provided according to an embodiment of the present invention is shown.

[0037] Fig. 9 A schematic diagram of a cleaning component provided according to an embodiment of the present invention is shown.

[0038] Legend:

[0039] 10. Reactor body; 11. Circulation pipe; 12. Sampling pipe; 13. Discharge pipe;

[0040] 20, fixed component; 21, support frame; 22, disc; 23, rotating plate; 24, arc block; 25, first spring; 26, auxiliary component; 26a, concave frame; 26b, lifting plate; 26c, limit plate; 26d, airbag; 26e, limit rod; 26f, second spring; 26g, first rope; 26h, first rack; 26i, connecting plate; 26j, vertical plate; 26k, clamping plate; 27, clamping component; 27a, semicircular block; 27b, fixed block; 27c, support block; 27d, sleeve; 27e, third spring; 27f, extension plate; 27g, square plate; 27h, positioning block; 27i, clamping block;

[0041] 30. Rotating member; 31. Second gear; 32. T-shaped frame; 33. Second rope; 34. Pulling assembly; 34a. Cylinder; 34b. Third gear; 34c. First ratchet; 34d. Third rope; 34e. Mounting frame; 34f. Second rack; 34g. Second ratchet; 34h. Cylinder; 35. Cleaning assembly; 35a. Round plate; 35b. Hanging ring; 35c. First sponge cover; 35d. Long plate; 35e. Second sponge cover; 35f. Rectangular plate; 35g. Fourth spring; DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the polyester polyol sampling device in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1 - Figure 4 As shown, the present invention provides: a polyester polyol sampling device, including a reactor body 10, the reactor body 10 is a prior art, and its principles include: providing reaction space, temperature control, pressure control, stirring function, material processing, observation and sampling, etc., materials are stored inside the reactor body 10, a flow pipe 11 is fixedly connected to one side of the bottom end of the reactor body 10, a sampling pipe 12 is arranged on one side of the flow pipe 11, a discharge pipe 13 is arranged on the side of the sampling pipe 12 away from the flow pipe 11, valves are arranged at the connection points of the flow pipe 11, and fixing components 20 are arranged on both sides of the sampling pipe 12;

[0044] The fixing component 20 includes a support frame 21 used in conjunction with the sampling tube 12. Discs 22 are fixedly connected to both sides of the support frame 21. The opposite surfaces of the two discs 22 are rotatably connected to rotating plates 23. The surfaces of the discs 22 are symmetrically provided with arc blocks 24 and first springs 25. The arc blocks 24 are slidably mounted on the discs 22, and the arc blocks 24 can be reset by the reaction force of the first spring 25. The auxiliary components 26 and the clamping components 27 used in conjunction with the arc blocks 24 can release the limit of the arc blocks 24 through the auxiliary components 26. At the same time, the auxiliary components 26 will also drive the clamping components 27 during operation, so that the clamping components 27 and the arc blocks 24 can release the fixation of the sampling tube 12 at the same time, so that the sampling tube 12 can be disassembled;

[0045] The rotating member 30 is also provided on the disc 22. The rotating member 30 includes a second gear 31 fixedly mounted on the rotating shaft of the rotating plate 23. When the rotating plate 23 rotates through the rotating shaft, the second gear 31 mounted on the rotating shaft is also driven to rotate synchronously. A T-shaped frame 32 is slidably connected to the surface of the disc 22. The bottom end of the T-shaped frame 32 is engaged with the second gear 31. The engagement prevents the second gear 31 from rotating, thereby limiting the position of the rotating plate 23.

[0046] A first winding wheel is provided on the surface of the disc 22, and a second rope 33 is wound around the surface of the first winding wheel. One end of the second rope 33 is connected to the T-shaped frame 32, and the other end is connected to the concave frame 26a. A traction component 34 and a cleaning component 35 used in conjunction with the traction component 34 are provided on the surface of the disc 22. Through the coordinated use of the traction component 34 and the cleaning component 35, the temporarily stored sampling tube 12 can be cleaned. There are two sampling tubes 12, one is in use and the other is temporarily stored.

[0047] In further detail, the auxiliary component 26 includes a concave frame 26a hinged on the disc 22, and the concave frame 26a can rotate through the hinge. The inner concave surface of the concave frame 26a is slidably connected with a lifting plate 26b on both sides. The lifting plate 26b is fixedly connected to a limit plate 26c and an air bag 26d on one side close to the arc block 24. The other side of the lifting plate 26b is symmetrically installed with a limit rod 26e. The surface of each limit rod 26e is sleeved with a second spring 26f. The limit rod 26e plays a limiting role when the lifting plate 26b is lifted and lowered. At the same time, the lifting plate 26b will also squeeze the second spring 26f when moving. After the movement, the reaction force of the second spring 26f allows the lifting plate 26b to drive the limit rod 26e to reset, and second winding wheels are provided at the upper and lower ends of the outer wall of the concave frame 26a, and a first rope 26g is wound around the second winding wheel, and a first rack 26h is fixedly connected to the first rope 26g, and the first rack 26h is slidably installed on the concave frame 26a, and mounting grooves are symmetrically provided on one side of the concave frame 26a, and a connecting plate 26i is rotatably connected inside each mounting groove, and both ends of the connecting plate 26i are slidably connected to vertical plates 26j, and a clamping plate 26k is fixedly connected to one side of one of the connecting plates 26i.

[0048] In further detail, each arc block 24 has a limit groove at both ends, and the size of the limit groove is consistent with the limit plate 26c. The airbag 26d is located between the limit plates 26c. After the two arc blocks 24 are merged, the two arc blocks 24 will contact each other. At this time, the limit plate 26c is inserted into the limit groove to limit the arc block 24. At the same time, the airbag 26d will be in the contact position of the two arc blocks 24, and the airbag 26d will be squeezed with the descent of the lifting plate 26b, thereby filling the gap between the two arc blocks 24, so that the sampling tube 12 is clamped. To maintain fixation and ensure the sealing between it and the disc 22, one end of the limit rod 26e extends to the outside of the concave frame 26a, and the second spring 26f is located between the lifting plate 26b and the inner concave surface of the concave frame 26a. The outer wall of the concave frame 26a is rotatably connected with a first gear located between the two first racks 26h. The first gear and the two first racks 26h are meshed with each other. When one of the first racks 26h moves, the first gear starts to rotate through meshing, and then the other first rack 26h also starts to move, so that the two first racks 26h move toward opposite sides.

[0049] In further detail, the clamping plate 26k is engaged with one end of the lifting plate 26b, and the shape of the clamping plate 26k is "concave". The two ends of the clamping plate 26k close to the lifting plate 26b are set to arc surfaces, and the other end is connected to the lifting plate 26b, and the connection points of the two connecting plates 26i are provided with hinged seats. When one of the first ropes 26g is pulled, the first rack 26h and the lifting plate 26b matching therewith will be driven to start moving, and the first gear will make the other set of first racks 26h drive the first rope 26g and the lifting plate 26b matching therewith to start moving toward the opposite side, thereby causing the two sets of lifting plates 26b to start moving toward the opposite side. At the same time, when the lifting plate 26b rises and gradually rises, it will also drive the vertical plate 26j connected thereto to rise, and then the connecting plate 26i will start to rotate through the hinged seat, and the other set of vertical plates 26j will descend. When this vertical plate 26j descends, the clamping plate 26k is pulled to move through the hinged seat, thereby releasing the limit on the lifting plate 26b.

[0050] Operation process: when sampling polyester polyol, first open the valve between the sampling tube 12 and the discharge tube 13 under vacuum (herein referred to as the first valve), and then open the nitrogen valve on the valve at the connection between the circulation tube 11 and the sampling tube 12 (herein referred to as the second valve), so that nitrogen flows into the interior of the sampling tube 12 to exhaust the air in the sampling tube 12 to prevent the material from contacting the air for oxidation (polyester polyol is prone to oxidation reaction under high temperature and oxygen environment, resulting in product deterioration or generation of undesirable byproducts. Nitrogen is an inert gas with stable chemical properties, which can replace oxygen and reduce the possibility of oxidation reaction). After 30-50 seconds of exhaustion, close the nitrogen valve and the first valve, and then open the main valve and the second valve between the circulation tube 11 and the reactor body 10, so that the material inside the reactor body 10 enters the sampling tube 12 through the circulation tube 11. After flowing into the sampling tube 12 for 30-50 seconds, close the main valve, open the nitrogen valve to slowly introduce nitrogen, and open the first valve for sampling;

[0051] After sampling, the first valve and the nitrogen valve are closed. After the experiment is completed, one of the first ropes 26g is pulled to drive the first rack 26h and the lifting plate 26b matched therewith to start moving, and the other set of first racks 26h is driven by the first gear to drive the first rope 26g and the lifting plate 26b matched therewith to start moving toward the opposite side, thereby causing the two sets of lifting plates 26b to start moving toward the opposite side. At the same time, when the lifting plate 26b gradually rises, the vertical plate 26j connected thereto is also driven to rise, thereby causing the connecting plate 26i to start rotating through the articulated seat, and causing the other set of vertical plates 26j to descend. When the vertical plate 26j descends, the clamping plate 26k is pulled to move through the articulated seat, thereby releasing the limit on the lifting plate 26b.

[0052] When the lifting plate 26b rises, it will also drive the limit plate 26c, the airbag 26d and the limit rod 26e to start moving. After the limit plate 26c moves, it will release the engagement with the upper limit groove on the arc block 24, thereby releasing the limit on the arc block 24. Then, the concave frame 26a can be rotated 75-85 degrees through the hinge, and then the pulled first rope 26g is released. At this time, the reaction force of the second spring 26f makes the lifting plate 26b drive the limit rod 26e to reset, and pull the first rope 26g to drive the first rack 26h to reset.

[0053] like Figure 5 - Figure 6As shown, the locking assembly 27 includes two groups of semicircular blocks 27a and a fixed block 27b arranged on the rotating plate 23, the two groups of semicircular blocks 27a are connected to the rotating plate 23 by hinges, and each group of fixed blocks 27b is slidably connected with a support block 27c and a sleeve 27d inside, and a third spring 27e is fixedly connected between the support block 27c and the fixed block 27b, and the support block 27c can be reset by the reaction force of the third spring 27e, and an extension plate 27f is fixedly connected to one side of the support block 27c, and a square plate 27g is hinged on the side of the extension plate 27f away from the support block 27c, and the square plate 27g can be rotated in the direction of the third spring 27e through the hinge, and cannot rotate in other directions and will be blocked by the extension plate 27f, and a positioning block 27h is inserted into the inside of the sleeve 27d, and each group of semicircular blocks 27a is fixedly connected with a locking block 27i.

[0054] In further detail, one side of the support block 27c is set as an inclined surface, which contacts the bottom end of the sleeve 27d, and supports the sleeve 27d through the inclined surface of the support block 27c. A rotating shaft is set between the two ends of the square plate 27g and the extension plate 27f, and a torsion spring is sleeved on the surface of the rotating shaft. After the square plate 27g is rotated through the hinge, it can be reset by the torsion spring sleeved on the rotating shaft. The positioning block 27h extends to the outside of the sleeve 27d, and one side of this end is set as an arc surface. A reset spring is set between the positioning block 27h and the sleeve 27d. A positioning groove is opened on the clamping block 27i, and the size of the positioning groove is consistent with that of the positioning block 27h.

[0055] Operation process: while the concave frame 26a rotates, one side of the lifting plate 26b at the upper end will also contact the square plate 27g and squeeze the square plate 27g. At this time, the square plate 27g cannot rotate through the rotating shaft, so that the square plate 27g drives the extension plate 27f and the support block 27c to move. When the support block 27c moves, the third spring 27e will also be stretched. When the support block 27c moves, the inclination of the inclined surface gradually decreases, so that the sleeve 27d drives the positioning block 27h to gradually descend, so that the positioning block 27h is released from the engagement with the positioning groove, and then the semicircular block 27a is rotated 90 degrees to open it.

[0056] As the rotation angle of the concave frame 26a gradually increases, the contact points with the square plate 27g will gradually decrease and the contact will be lost. At this time, the support block 27c and the square plate 27g are reset by the reaction force of the third spring 27e. At this time, the used sampling tube 12 is taken out upward and can be taken out from the rotating plate 23. At the same time, the two ends of the sampling tube 12 are also taken out upward from between the two arc blocks 24, and the two arc blocks 24 are squeezed to move toward the opposite side, so that the two ends of the sampling tube 12 are no longer clamped and fixed, thereby completing the disassembly of the sampling tube 12;

[0057] Similarly, when installing the cleaned sampling tube 12, first place the sampling tube 12 between the two arc blocks 24 and between the two rotating plates 23, and clamp and fix the two ends of the sampling tube 12 by the two arc blocks 24, and then rotate and reset the semicircular block 27a. At this time, the semicircular block 27a will contact the arc surface of the positioning block 27h and squeeze it down. After the semicircular block 27a is merged with the rotating plate 23, the positioning block 27h is reset and engaged with the positioning groove by the reaction force of the reset spring, thereby fixing the semicircular block 27a.

[0058] like Figure 7 - Fig. 9 As shown, the traction assembly 34 includes a cylinder 34a rotatably mounted on the disc 22, and a third gear 34b and a first ratchet 34c are fixedly connected to the cylinder 34a. The first ratchet 34c is a ratchet in the prior art, and its principle is: when rotating clockwise, the ratchet rotates as a whole, and when rotating counterclockwise, the ratchet will only rotate idly. There are two first ratchet wheels 34c, and one side of each first ratchet wheel 34c is wrapped with a third rope 34d, and the third rope 34d is pulled by the rotation of the first ratchet wheel 34c. Two sets of mounting frames 34e are provided on the side of the disc 22 away from the cylinder 34a, and the top of the mounting frame 34e is slidably connected to the second rack 34f, and the top of the mounting frame 34e is rotatably connected to the second ratchet 34g, and the top of the second ratchet 34g is fixed to the cylinder 34h by a buckle.

[0059] In further detail, one end of the third rope 34d is connected to the second rack 34f, and the second rack 34f is meshed with the second ratchet 34g. A fifth spring is arranged between the second rack 34f and the mounting bracket 34e. When the rotating plate 23 is rotated, the second gear 31 on its rotating shaft will also rotate synchronously, and the meshing will cause the third gear 34b to also drive the cylinder 34a to rotate, so that the two first ratchet wheels 34c on the surface of the cylinder 34a rotate (one of them rotates counterclockwise and the other rotates clockwise), and the clockwise rotating first ratchet wheel 34c will pull the third rope 34d (the counterclockwise rotating first ratchet wheel 34c will not pull the rope wrapped around its surface, but will only idle), so that the third rope 34d drives the second rack 34f matching it to move, and the meshing will cause the second ratchet wheel 34g to also rotate clockwise, so that the top cylinder 34h drives the cleaning assembly 35 to rotate, so that the cleaning assembly 35 faces the disc 22.

[0060] In further detail, the cleaning assembly 35 includes a circular plate 35a which is engaged in the cylinder 34h, and a hanging ring 35b and a first sponge cover 35c are provided on the circular plate 35a. The side of the circular plate 35a away from the hanging ring 35b is connected to a long plate 35d through a hinge seat, and the end of the long plate 35d away from the hinge seat is provided with a second sponge cover 35e. A rectangular plate 35f is provided on the side of the circular plate 35a close to the long plate 35d, and a fourth spring 35g is fixedly connected between the long plate 35d and the rectangular plate 35f.

[0061] In further detail, the rectangular plate 35f and the long plate 35d are equidistantly arranged, the size of the circular plate 35a is smaller than the size of the openings on both sides of the sampling tube 12, a hook is placed on the support frame 21, and the length of the hook is greater than the sampling tube 12, by extending the hook from one opening of the temporarily stored sampling tube 12, extending it from the other opening, and connecting the hook with the hanging ring 35b, at this time, the hook drives the hanging ring 35b to move the circular plate 35a, so that the circular plate 35a drives the long plate 35d to move from the cylinder 34h to the sampling tube 12. In the opening of the tube 12, the first sponge sleeve 35c on the surface of the circular plate 35a can wipe and clean the inner wall of the opening of the sampling tube 12. As the circular plate 35a drives the long plate 35d to move to the middle of the sampling tube 12, the reaction force of the fourth spring 35g causes one end of the long plate 35d to rise, and the inner wall of the middle part of the sampling tube 12 is cleaned through the second sponge sleeve 35e, and then the circular plate 35a is moved out from the opening on the other side of the sampling tube 12, so that the circular plate 35a is located in the cylinder 34h of this end opening for storage.

[0062] Operation process: after taking out the sampling tube 12 after the experiment, the second rope 33 will be stretched after the concave frame 26a rotates, so that the second rope 33 drives the T-shaped frame 32 to rise and release the limit of the second gear 31. At this time, the rotating plate 23 is rotated so that the temporarily stored sampling tube 12 can replace the taken out sampling tube 12. At this time, when the concave frame 26a is rotated and reset, it will also contact the square plate 27g. At this time, the square plate 27g will rotate through the hinge and will not drive the support block 27c to move. At the same time, the first rope 26g is operated again to make the limit plate 26c engage with the limit groove, so as to fix the arc block 24, thereby completing the fixation and sealing of the sampling tube 12;

[0063] At the same time, the T-shaped frame 32 is re-engaged with the second gear 31 by gravity, and then the cleaned sampling tube 12 is installed on the rotating plate 23 again for temporary storage. At this time, there may be residual water drops on the inner wall of the sampling tube 12 after cleaning. When the rotating plate 23 is rotated, the second gear 31 on its rotating shaft will also rotate synchronously, and the third gear 34b will also drive the cylinder 34a to rotate through meshing, so that the two first ratchet wheels 34c on the surface of the cylinder 34a rotate (one rotates counterclockwise and the other rotates clockwise), and the clockwise rotating first ratchet wheel 34c will pull the third rope 34d (the counterclockwise rotating first ratchet wheel 34c will not pull the rope wrapped around its surface, but will only rotate idly), so that the third rope 34d drives the second rack 34f matched thereto to move, and the second ratchet wheel 34g will also rotate clockwise through meshing, so that the cylinder 34h on the top of the second ratchet wheel 34g will also rotate, so that the circular plate 35a faces the disc 22;

[0064] Then, the hook is inserted into the opening on one side of the temporarily stored sampling tube 12, extended from the opening on the other side, and connected to the hook with the hanging ring 35b. At this time, the hook drives the hanging ring 35b to move the circular plate 35a, so that the circular plate 35a drives the long plate 35d to move from the cylinder 34h to the opening of the sampling tube 12, and the first sponge sleeve 35c on the surface of the circular plate 35a can wipe and clean the inner wall of the opening of the sampling tube 12. As the circular plate 35a drives the long plate 35d to move to the middle of the sampling tube 12, the reaction force of the fourth spring 35g causes one end of the long plate 35d to tilt, and the inner wall of the middle part of the sampling tube 12 is cleaned by the second sponge sleeve 35e, and then the circular plate 35a is moved out from the opening on the other side of the sampling tube 12, so that the circular plate 35a is located in the cylinder 34h with this end opening for storage, thereby completing the cleaning of the temporarily stored sampling tube 12.

[0065] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes to a polyester polyol sampling device and its inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polyester polyol sampling device, comprising a reactor body (10), a circulation tube (11) being fixedly connected to one side of the bottom end of the reactor body (10), a sampling tube (12) being arranged on one side of the circulation tube (11), a discharge tube (13) being arranged on the side of the sampling tube (12) away from the circulation tube (11), and fixing components (20) being arranged on both sides of the sampling tube (12), characterized in that: Also includes: The fixing component (20) comprises a support frame (21) used in conjunction with the sampling tube (12), both sides of the support frame (21) are fixedly connected with disks (22), the opposite surfaces of the two disks (22) are rotatably connected with rotating plates (23), the surfaces of the disks (22) are symmetrically provided with arc blocks (24) and first springs (25), and an auxiliary component (26) and a clamping component (27) used in conjunction with the arc blocks (24), the auxiliary component (26) can release the limit of the arc blocks (24), and the auxiliary component (26) will also drive the clamping component (27) during operation, so that the clamping component (27) and the arc blocks (24) can simultaneously release the fixation of the sampling tube (12), so that the sampling tube (12) can be disassembled; It also includes a rotating component (30) arranged on the disk (22), the rotating component (30) including a second gear (31) fixedly mounted on a rotating shaft of the rotating plate (23), a T-shaped frame (32) being slidably connected to the surface of the disk (22), a first winding wheel being arranged on the surface of the disk (22), a second rope (33) being wound around the surface of the first winding wheel, a traction assembly (34) being arranged on the surface of the disk (22), and a cleaning assembly (35) used in conjunction with the traction assembly (34); The auxiliary component (26) comprises a concave frame (26a) hinged on the disc (22), both sides of the inner concave surface of the concave frame (26a) are slidably connected to lifting plates (26b), one side of the lifting plate (26b) close to the arc block (24) is fixedly connected to a limiting plate (26c) and an airbag (26d), and the other side of the lifting plate (26b) is symmetrically installed with limiting rods (26e), and the surface of each limiting rod (26e) is sleeved with a second spring (26f). The concave frame (26a) ) are provided with second winding wheels at both upper and lower ends of the outer wall, a first rope (26g) is wound around the second winding wheel, one end of the first rope (26g) is fixedly connected to a first rack (26h), one side of the concave frame (26a) is symmetrically provided with mounting grooves, each of the mounting grooves is rotatably connected to a connecting plate (26i), both ends of the connecting plates (26i) are slidably connected to vertical plates (26j), and one side of one of the connecting plates (26i) is fixedly connected to a clamping plate (26k); Each arc block (24) is provided with a limiting groove at both upper and lower ends, the size of the limiting groove is consistent with the limiting plate (26c), the airbag (26d) is located between the limiting plates (26c), one end of the limiting rod (26e) extends to the outside of the concave frame (26a), the second spring (26f) is located between the lifting plate (26b) and the inner concave surface of the concave frame (26a), the outer wall of the concave frame (26a) is located between the two first racks (26h) and is rotatably connected with a first gear, and the first gear and the two first racks (26h) are meshed with each other; The clamping plate (26k) and one end of the lifting plate (26b) are mutually engaged, the shape of the clamping plate (26k) is "concave", and both ends of the clamping plate (26k) close to the lifting plate (26b) are arranged as arc surfaces, the other end of the first rope (26g) is connected to the lifting plate (26b), and the connection between the two connecting plates (26i) is provided with a hinge seat; The engaging assembly (27) comprises two groups of semicircular blocks (27a) and a fixed block (27b) arranged on the rotating plate (23); each group of the fixed blocks (27b) is slidably connected to a support block (27c) and a sleeve (27d); a third spring (27e) is fixedly connected between the support block (27c) and the fixed block (27b); an extension plate (27f) is fixedly connected to one side of the support block (27c); a square plate (27g) is hingedly connected to the side of the extension plate (27f) away from the support block (27c); a positioning block (27h) is inserted into the sleeve (27d); and each group of the semicircular blocks (27a) is fixedly connected to a clamping block (27i).

2. A polyester polyol sampling device according to claim 1, characterized in that: One side of the support block (27c) is arranged as an inclined surface, and the inclined surface contacts the bottom end of the sleeve (27d). A rotating shaft is arranged between the two ends of the square plate (27g) and the extension plate (27f), and a torsion spring is sleeved on the surface of the rotating shaft. The top end of the positioning block (27h) extends to the outside of the sleeve (27d). One side of the top end of the positioning block (27h) is arranged as an arc surface. A return spring is arranged between the positioning block (27h) and the sleeve (27d). A positioning groove is provided on the clamping block (27i), and the size of the positioning groove is consistent with that of the positioning block (27h).

3. A polyester polyol sampling device according to claim 2, characterized in that: The traction assembly (34) comprises a cylinder (34a) rotatably mounted on the disc (22); a third gear (34b) and a first ratchet (34c) are fixedly connected to the cylinder (34a); there are two first ratchet wheels (34c); one side of each first ratchet wheel (34c) is wound and connected with a third rope (34d); two groups of mounting frames (34e) are provided on a side of the disc (22) away from the cylinder (34a); the top end of the mounting frame (34e) is slidably connected to a second rack (34f); the top end of the mounting frame (34e) is rotatably connected to a second ratchet (34g); and the top end of the second ratchet (34g) is fixed with a cylinder (34h) via a buckle.

4. A polyester polyol sampling device according to claim 3, characterized in that: One end of the third rope (34d) is connected to the second rack (34f), the second rack (34f) is meshed with the second ratchet (34g), and a fifth spring is provided between the second rack (34f) and the mounting frame (34e).

5. A polyester polyol sampling device according to claim 4, characterized in that: The cleaning assembly (35) comprises a circular plate (35a) engaged in the cylinder (34h), the circular plate (35a) being provided with a hanging ring (35b) and a first sponge sleeve (35c), the side of the circular plate (35a) away from the hanging ring (35b) being connected to a long plate (35d) via a hinge seat, the end of the long plate (35d) away from the hinge seat being provided with a second sponge sleeve (35e), the side of the circular plate (35a) close to the long plate (35d) being provided with a rectangular plate (35f), and a fourth spring (35g) being fixedly connected between the long plate (35d) and the rectangular plate (35f).

6. A polyester polyol sampling device according to claim 5, characterized in that: The rectangular plate (35f) and the long plate (35d) are arranged at equal distances from each other, the size of the circular plate (35a) is smaller than the size of the openings on both sides of the sampling tube (12), and a draw hook is placed on the support frame (21), and the length of the draw hook is greater than the sampling tube (12).

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