Sampling device for chemical raw material detection

Abstract

The invention discloses a sampling device for chemical raw material detection, which comprises a bearing base, a rotating assembly arranged at the upper end of the bearing base, a fixed arm, a vertical stroke assembly arranged on the side of the fixed arm, an output arm, a pressing and fixing assembly arranged on the output arm and a sampling assembly for sampling chemical raw materials, the sampling assembly is detachably assembled on the pressing and fixing assembly. The chemical raw material tank sampling device has the following advantages and effects that in the operation process, the sampling assembly can be flexibly adjusted to the position above the chemical raw material tank or away from the chemical raw material tank under the driving of the rotating assembly, and the sampling efficiency is remarkably improved through the flexible sampling mode; the complexity of manual operation and consequent risks in a traditional sampling mode are avoided; meanwhile, the sampling assembly is detachably assembled on the pressing and fixing assembly, convenience is provided for mounting and dismounting of the sampling assembly, and the sampling assembly can be conveniently cleaned and maintained in the later period.

Description

Technical Field

[0001] The invention relates to the technical field of sampling, and in particular to a sampling device for detecting chemical raw materials. Background Art

[0002] In the chemical production process, in order to ensure product quality and process stability, chemical raw materials need to be tested regularly. The first step in the testing work is to take samples from the chemical raw material pool. Traditional sampling methods are mostly manual operations or fixed sampling devices. These methods have many shortcomings and cannot meet the needs of the modern chemical industry for efficient, safe and accurate sampling.

[0003] Manual sampling relies on operators to directly contact the chemical raw material pool, which not only has the problems of complex operation and low sampling efficiency, but also may pose a safety threat to operators due to the volatility, corrosiveness or toxicity of chemical raw materials. At the same time, manual methods are difficult to ensure the representativeness and consistency of samples, which may lead to deviations in test results and affect the regulation of production processes.

[0004] In view of the above problems, there is an urgent need for a sampling device that can flexibly adjust the position, adapt to different sampling conditions, and improve efficiency and safety during operation. In addition, the sampling component is also inconvenient in the cleaning and maintenance process after sampling, which increases the cost and labor intensity; therefore, it is also necessary to improve the detachable assembly structure of the sampling component. Summary of the invention

[0005] The purpose of the present invention is to provide a sampling device for chemical raw material detection to solve the problems raised in the background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A sampling device for chemical raw material detection, comprising:

[0008] As a load-bearing base for the load-bearing structure;

[0009] A rotating assembly is disposed on the upper end of the bearing base and can rotate relative to the bearing base, and a fixed arm is vertically extended upward on the rotating assembly, and the fixed arm rotates with the rotating assembly;

[0010] A vertical stroke component is arranged on the side of the fixed arm, and an output arm is arranged on the vertical stroke component and extends vertically downward, and the output arm moves in the vertical direction under the drive of the vertical stroke component;

[0011] A pressing assembly disposed on the output arm;

[0012] And a sampling component for sampling chemical raw materials, the sampling component is detachably assembled on the pressing component; the sampling component can be moved to the top of the chemical raw material pool or away from the chemical raw material pool under the drive of the rotating component, and when the sampling component is located above the chemical raw material pool, the sampling component can extend downward into or extend upward from the chemical raw material pool under the drive of the vertical stroke component.

[0013] Further configuration is: the bearing base is composed of a plurality of bottom straight arms alternately connected and two vertical straight arms perpendicular to the bottom straight arms; the rotating assembly includes a circular base fixed to the upper end of each bottom straight arm, a rotating execution disk with a spacing therefrom is arranged above the circular base, and a plurality of convex teeth are regularly arranged on the outer peripheral wall of the rotating execution disk; an extension plate is fixedly arranged between the two vertical straight arms, a first driving motor is fixedly arranged on the upper end of the extension plate, the output shaft of the first driving motor extends into the lower end of the extension plate and is fixedly provided with driving teeth, and the driving teeth are meshed with the convex teeth on the outer peripheral wall of the rotating execution disk;

[0014] The rotating execution disk has guide areas on both opposite sides, and a plurality of first guide shafts are vertically penetrated in the two guide areas, and a first guide wheel is rotatably arranged at the lower end of each of the first guide shafts; the circular base is composed of a plurality of stacked circular chassis, and the outer diameter of one of the circular chassis is smaller than that of the other circular chassis, so that a first annular recessed area is formed on the outer side wall of the circular base, and each of the first guide wheels can extend into the first recessed area, so that the rotating execution disk can stably rotate around the circular base;

[0015] An upper pressure plate is arranged at the upper end of the rotating execution disk, a thread is arranged at the upper end of each first guide shaft and extends to the upper end of the upper pressure plate, and a first nut for locking is separately arranged at the upper end of each first guide shaft.

[0016] Further configuration is that: a reinforced bottom plate is fixedly provided at the position of the two guide areas corresponding to the lower end of the rotating execution disk, and the first guide shaft in each of the guide areas passes through the corresponding reinforced bottom plate;

[0017] The rotating actuating plate, the upper pressure plate and the circular bottom plates are all hollowed out in the middle, the inner side parts of the reinforced bottom plates extend inward and protrude from the rotating actuating plate, the upper pressure plate and the circular bottom plates, a plurality of second guide shafts are vertically penetrated through the inner side parts of the reinforced bottom plates, the upper ends of the second guide shafts are each provided with threads and extend to the upper ends of the corresponding reinforced bottom plates, and the upper ends of the second guide shafts are each individually provided with second nuts for locking;

[0018] A second guide wheel is rotatably provided at the lower end of each of the second guide shafts, wherein the inner diameter of one of the circular chassis is larger than that of the other circular chassis, thereby forming an annular second recessed area on the inner side wall of the circular base, and each of the second guide wheels can extend into the second recessed area.

[0019] Further configuration is: the vertical stroke assembly includes a vertical stroke seat, the vertical stroke seat is fixed to the fixed arm by a bent plate; the upper and lower ends of the front face of the vertical stroke seat are respectively fixedly provided with an upper end plate and a lower end plate, the back face of the upper end plate is fixedly provided with a second drive motor, the output shaft of the second drive motor extends to the front face of the upper end plate and is fixedly provided with a first drive wheel, the front face of the lower end plate is rotatably provided with a second drive wheel, and the first drive wheel and the second drive wheel are connected by a drive belt;

[0020] A vertical guide rail is fixedly arranged on the front side of the vertical travel seat, and a guide rail block is slidingly arranged on the upper limit position of the vertical guide rail. The middle of the guide rail block is hollowed out for the driving belt to pass through, and a clamp is fixedly arranged in the middle of the guide rail block, and the guide rail block is fixed on the driving belt through the clamp; a positioning measuring piece is fixedly arranged on the upper end of the guide rail block, and a positioning sensor is fixedly arranged on the front side of the upper end plate, and the positioning sensor has a positioning opening; during the upward movement of the guide rail block, the positioning measuring piece will extend into the positioning opening and generate a trigger signal to limit the position; a lower baffle is fixedly arranged on the lower end of the vertical travel seat, and during the downward movement of the guide rail block, the guide rail block can contact the lower baffle to limit the position;

[0021] The output arm is fixed to the lower end of the guide rail block and extends vertically downward.

[0022] Further configuration is: the pressing assembly includes a fixed plate fixed to the output arm, a driving cylinder is fixedly arranged at the lower end of the fixed plate, a cylinder arm capable of moving in a vertical direction is arranged in the driving cylinder, and a through hole and a penetration groove for the cylinder arm of the driving cylinder to penetrate are respectively provided inside the fixed plate and the lower part of the output arm;

[0023] A lower end frame is fixedly provided at the lower end of the driving cylinder, and the lower end frame is composed of an upper disc frame, a lower disc frame and a spacer column arranged between the upper disc frame and the lower disc frame; a first inner hole for the cylinder arm to pass through is opened in the upper disc frame, a pulling shaft is fixedly provided at the lower end of the cylinder arm, a second inner hole for the pulling shaft to pass through is opened in the lower disc frame, and a fixed ring frame with a hollow middle for the pulling shaft to pass through is fixedly provided at the lower end of the lower disc frame; eight guide holes are regularly opened in the lower disc frame, and the extension line of each guide hole will pass through the center of the lower disc frame; a vertical guide shaft is passed through each guide hole, and a pressing plate is fixedly provided at the lower end of each guide shaft, and a pressing space is formed between the eight pressing plates; the sampling component can extend into the pressing space and is pressed by the eight pressing plates.

[0024] The further configuration is as follows: eight vertical movable holes connected inside and outside are regularly opened on the fixed ring frame; eight groups of pulling sub-components are arranged on the outer peripheral wall of the pulling shaft; the eight groups of pulling sub-components can all extend out of the corresponding movable holes; the positions of the eight groups of pulling sub-components correspond to the positions of the eight pressing plates respectively; each group of pulling sub-components includes two first pulling protrusions; the inner side wall of each pressing plate is provided with two second pulling protrusions; each of the first pulling protrusions is connected to the corresponding second pulling protrusion through a pulling paddle; the two ends of the pulling paddle are respectively connected to the corresponding first pulling protrusion and the corresponding second pulling protrusion to form a rotation connection;

[0025] With the vertical movement of the pulling shaft, the eight pressing plates can be controlled to expand outward or retract inward at the same time.

[0026] A further configuration is that each of the pressing sheets is composed of an outer metal hard sheet and an inner flexible soft sheet which are fixed to each other.

[0027] Further configuration is: the sampling assembly includes a vertical sampling inner shell, the sampling inner shell is formed by fixing an upper shell and a lower shell, a sampling inner cavity is provided inside the sampling inner shell, a sampling interface is provided at the lower end of the sampling inner shell, and the sampling interface is connected to the sampling inner cavity; a sampling piston is movably provided in the sampling inner cavity, a vertical sampling shaft is fixedly provided at the upper end of the sampling piston, and an upper end hole is provided at the upper end of the sampling inner shell for the sampling shaft to extend upward;

[0028] The sampling inner shell can extend into the pressing and fixing space and is pressed and fixed by eight pressing and fixing pieces;

[0029] The right side wall of the sampling shaft is provided with a plurality of regular tooth patterns, and a third driving motor is fixedly provided on the back side of the sampling inner shell. The output shaft of the third driving motor extends into the sampling inner cavity and is fixedly provided with rotating teeth, and the rotating teeth are meshed with the sampling shaft to drive the sampling piston to move in the vertical direction.

[0030] A further configuration is that: at least the lower half of the interior of the pulling shaft is provided with a hollow insertion cavity;

[0031] After the sampling inner shell is pressed and fixed by the eight pressing and fixing pieces, the insertion cavity just corresponds to the position of the sampling shaft, and the insertion cavity provides a space for the sampling shaft to move.

[0032] The present invention has the following beneficial effects:

[0033] 1. During operation, the sampling assembly can be flexibly adjusted to the top of the chemical raw material pool or away from the chemical raw material pool under the drive of the rotating assembly; this flexible sampling method significantly improves the efficiency of sampling and avoids the complexity of manual operation and the risks that come with it under the traditional sampling method; when the sampling assembly is located above the chemical raw material pool, it can be accurately extended or extended under the drive of the vertical stroke assembly to ensure that representative samples are obtained without being affected by environmental factors; in addition, this innovative design also reduces the safety risks to operators during the sampling process and improves the standardization and standardization of sample sampling. At the same time, the sampling assembly can be detachably assembled on the compression assembly, which facilitates the installation and disassembly of the sampling assembly, so as to facilitate the cleaning and maintenance of the sampling assembly in the later stage; the compression assembly can play a role in stabilizing the assembly of the sampling assembly.

[0034] 2. The design of the rotating assembly in the present invention ensures that the sampling device can maintain higher flexibility and coordination during operation; the relative movement between the circular base in the rotating assembly and the rotating execution disk further simplifies the operation process and reduces the necessity of manual intervention; the meshing design of the convex teeth on the outer periphery of the execution disk and the driving teeth ensures that the rotating assembly can rotate efficiently and stably, minimizing equipment wear caused by improper operation; each first guide wheel can extend into the first recessed area, and the rotating execution disk is limited based on the contact between the first guide wheel and the upper and lower inner walls of the first recessed area to prevent the rotating execution disk from falling; at the same time, based on the rolling between the first guide wheel and the first recessed area, the friction force is better reduced and friction damage is reduced; the setting of the upper pressure plate can not only lock the first guide shaft and the corresponding first nut, but also improve the overall strength.

[0035] 3. In the present invention, the setting of the reinforced bottom plate not only ensures the stability of the rotating execution disk, but also provides an assembly space for the second guide shaft; each second guide wheel can extend into the second recessed area, and through the outer first guide wheel and the first recessed area, the inner and outer double-end limiting can be achieved, thereby better improving the assembly stability of the rotating execution disk and preventing the rotating execution disk from falling.

[0036] 4. The design of the vertical stroke assembly in the present invention enables the sampling assembly to move precisely in the vertical direction, providing great flexibility for the sampling task; through the combination of the track system and the guide block, the sampling assembly can perform fast and stable sampling within the required liquid level range and ensure the representativeness and accuracy of the sample; in particular, through the set positioning sensor and positioning measuring piece, automatic monitoring during the operation process can effectively prevent damage and failure caused by excessive operation.

[0037] 5. In the present invention, the setting of the through hole and the insertion groove can provide space for the cylinder arm of the driving cylinder to move upward; the second inner hole is set for the pulling shaft to pass through, and the fixed ring frame is used as a fixed structure for the pulling shaft to pass through. There are eight guide holes, and the extension lines of the eight guide holes will pass through the center of the circle of the lower disc frame, so as to achieve a regular arrangement; a guide shaft is passed through each guide hole, and the compression plate is fixed at the lower end of the guide shaft. As the guide shaft moves in the corresponding guide hole, it can drive the compression plate to move outward or inward along the set path.

[0038] 6. In the present invention, the eight movable holes opened on the fixed ring frame can connect the inside and the outside, so that each pulling sub-component can extend out of the fixed ring frame respectively; each first pulling protrusion is connected to the corresponding second pulling protrusion through a pulling paddle, and the two ends of the pulling paddle are respectively rotatably connected with the corresponding first pulling protrusion and the corresponding second pulling protrusion; with the vertical movement of the pulling shaft, the eight pressing plates can be controlled to expand outward or retract inward at the same time.

[0039] 7. In the present invention, each compression plate is composed of a metal hard plate and a flexible soft plate, forming an effective pre-tightening and clamping strategy; this design significantly improves the protection of the sample, especially during the sampling process, it avoids the loss of the sample caused by slight mechanical vibration. In addition, this dual-material structure also greatly improves the compression performance.

[0040] 8. In the present invention, the fixed design of the upper and lower shells of the sampling inner shell and the sampling piston improve the flexibility and practicality of the entire sampling assembly; the design of the sampling inner cavity can not only effectively avoid the contamination of the sample, but also enhance the convenience of operation of the sampling library, and the operator only needs simple control to complete the entire sampling process; the sampling inner shell, as a pressed structure, can extend into the pressing space and be pressed by eight pressing plates; the rotating teeth drive the sampling piston to move in the vertical direction by meshing with the sampling shaft.

[0041] 9. In the present invention, the insertion cavity provided in the pulling shaft can be inserted into by the sampling shaft, providing a movable space for the sampling shaft, increasing the flexibility of assembly and the compactness of the structure, and effectively utilizing the assembly space. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of an embodiment;

[0043] Figure 2 It is a structural schematic diagram of the rotating assembly in the embodiment;

[0044] Figure 3 It is a structural schematic diagram of the vertical travel component in the embodiment;

[0045] Figure 4 It is a structural schematic diagram of a pressing assembly in an embodiment;

[0046] Figure 5 for Figure 1 Enlarged view of part A in the middle.

[0047] In the figure: 11, bearing base; 111, bottom straight arm; 112, vertical straight arm; 12, fixed arm; 13, output arm; 21, circular base; 211, circular chassis; 2111, first recessed area; 2112, second recessed area; 22, rotating execution plate; 221, convex teeth; 23, extension plate; 231, first drive motor; 24, drive teeth; 31, first guide shaft; 32, first guide wheel; 33, upper pressure plate; 34, first nut; 35, reinforced bottom plate; 36, second guide shaft; 37, second guide wheel; 38, second nut; 41, vertical stroke seat; 42, bending plate; 431, upper end plate; 432, lower end plate; 44, second drive motor; 451, first drive wheel; 452, second drive wheel; 46, drive belt; 471, vertical guide rail; 472, guide rail block; 4 73, clamping piece; 481, positioning sensor; 482, positioning measuring piece; 49, lower baffle; 51, fixed plate; 52, driving cylinder; 521, cylinder arm; 531, upper disc frame; 5311, first inner hole; 532, lower disc frame; 533, spacer column; 54, fixed ring frame; 551, guide hole; 552, guide shaft; 553, pressing piece; 5531, outer metal hard sheet; 5532 , inner flexible film; 56, pressing space; 61, movable hole; 62, first pulling protrusion; 63, pulling paddle; 71, sampling inner shell; 711, upper shell; 712, lower shell; 72, sampling inner cavity; 73, sampling interface; 74, sampling piston; 75, sampling shaft; 751, tooth pattern; 76, upper end hole; 77, third driving motor; 78, rotating teeth; 80, pulling shaft; 801, extending into the cavity. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0049] As attached Figures 1 to 5 As shown;

[0050] This embodiment discloses a sampling device for chemical raw material detection, including:

[0051] A bearing base 11 as a bearing structure;

[0052] A rotating assembly is disposed on the upper end of the supporting base 11 and can rotate relative to the supporting base 11. A fixed arm 12 is vertically extended upward on the rotating assembly, and the fixed arm 12 rotates together with the rotating assembly;

[0053] A vertical stroke component is arranged on the side of the fixed arm 12, and an output arm 13 is arranged on the vertical stroke component and extends vertically downward. The output arm 13 moves in the vertical direction under the drive of the vertical stroke component;

[0054] A pressing assembly disposed on the output arm 13;

[0055] And a sampling component for sampling chemical raw materials, the sampling component is detachably assembled on the pressing component; the sampling component can be moved to the top of the chemical raw material pool or away from the chemical raw material pool under the drive of the rotating component, and when the sampling component is located above the chemical raw material pool, the sampling component can extend downward into or extend upward from the chemical raw material pool under the drive of the vertical stroke component.

[0056] The bearing base 11 is composed of four alternately connected bottom straight arms 111 and two vertical straight arms 112 perpendicular to the bottom straight arms 111; the rotating assembly includes a circular base 21 fixed to the upper end of each bottom straight arm 111, and a rotating execution disk 22 with a gap therebetween is arranged above the circular base 21, and a plurality of convex teeth 221 are regularly arranged on the outer peripheral wall of the rotating execution disk 22; an extension plate 23 is fixedly arranged between the two vertical straight arms 112, and a first driving motor 231 is fixedly arranged at the upper end of the extension plate 23, and the output shaft of the first driving motor 231 extends into the lower end of the extension plate 23 and is fixedly provided with driving teeth 24, and the driving teeth 24 are meshed with the convex teeth 221 on the outer peripheral wall of the rotating execution disk 22;

[0057] The rotating actuating disk 22 has guide areas on opposite sides, and three first guide shafts 31 are vertically penetrated in the two guide areas, and a first guide wheel 32 is rotatably provided at the lower end of each first guide shaft 31; the circular base 21 is composed of a plurality of stacked circular chassis 211, and the outer diameter of one circular chassis 211 is smaller than that of the other circular chassis 211, so that a section of an annular first recessed area 2111 is formed on the outer wall of the circular base 21, and each first guide wheel 32 can extend into the first recessed area 2111, so that the rotating actuating disk 22 can stably rotate around the circular base 21;

[0058] An upper pressure plate 33 is disposed on the upper end of the rotating actuator disk 22 , and each first guide shaft 31 is provided with a thread on the upper end thereof and extends to the upper end of the upper pressure plate 33 , and each first guide shaft 31 is provided with a first nut 34 for locking on the upper end thereof.

[0059] Among them, the positions of the two guide areas corresponding to the lower end of the rotating execution disk 22 are fixedly provided with a reinforcement bottom plate 35, and the first guide shaft 31 in each guide area will pass through the corresponding reinforcement bottom plate 35;

[0060] The rotating actuating disc 22, the upper pressure disc 33 and the circular bottom discs 211 are all hollowed out in the middle, the inner side of each reinforced bottom plate 35 extends inward and protrudes from the rotating actuating disc 22, the upper pressure disc 33 and the circular bottom discs 211, and three second guide shafts 36 are vertically penetrated through the inner side of each reinforced bottom plate 35, and the upper end of each second guide shaft 36 is provided with a thread and extends to the upper end of the corresponding reinforced bottom plate 35, and the upper end of each second guide shaft 36 is separately provided with a second nut 38 for locking;

[0061] A second guide wheel 37 is rotatably provided at the lower end of each second guide shaft 36, wherein the inner diameter of one circular chassis 211 is larger than that of the other circular chassis 211, so that a ring-shaped second recessed area 2112 is formed on the inner wall of the circular base 21, and each second guide wheel 37 can extend into the second recessed area 2112.

[0062] The vertical stroke assembly includes a vertical stroke seat 41, and the vertical stroke seat 41 is fixed to the fixed arm 12 by a bent plate 42; an upper end plate 431 and a lower end plate 432 are fixedly arranged at the upper and lower ends of the front face of the vertical stroke seat 41, a second drive motor 44 is fixedly arranged at the back face of the upper end plate 431, an output shaft of the second drive motor 44 extends to the front face of the upper end plate 431 and is fixedly arranged with a first drive wheel 451, a second drive wheel 452 is rotatably arranged at the front face of the lower end plate 432, and the first drive wheel 451 and the second drive wheel 452 are connected by a drive belt 46;

[0063] A vertical guide rail 471 is fixedly provided on the front side of the vertical travel seat 41, and a guide rail block 472 is slidingly provided for the upper limit of the vertical guide rail 471. The middle of the guide rail block 472 is hollowed out for the driving belt 46 to pass through. A clamping piece 473 is fixedly provided in the middle of the guide rail block 472, and the guide rail block 472 is fixed on the driving belt 46 by the clamping piece 473; a positioning measuring piece 482 is fixedly provided on the upper end of the guide rail block 472, and a positioning sensor 481 is fixedly provided on the front side of the upper end plate 431, and the positioning sensor 481 has a positioning opening; during the upward movement of the guide rail block 472, the positioning measuring piece 482 will extend into the positioning opening and generate a trigger signal to limit the position; a lower baffle plate 49 is fixedly provided on the lower end of the vertical travel seat 41, and during the downward movement of the guide rail block 472, the guide rail block 472 can contact with the lower baffle plate 49 to limit the position;

[0064] It should be added that the positioning sensor 481 is led out through a wire and connected to an external PLC, and the first drive motor 231 and the second drive motor 44 are also connected to the PLC.

[0065] The output arm 13 is fixed to the lower end of the guide rail block 472 and extends vertically downward.

[0066] Among them, the pressing assembly includes a fixed plate 51 fixed to the output arm 13, a driving cylinder 52 is fixedly arranged at the lower end of the fixed plate 51, a cylinder arm 521 capable of moving in the vertical direction is arranged in the driving cylinder 52, and a through hole (not marked in the figure) and a penetration groove (not marked in the figure) for the cylinder arm 521 of the driving cylinder 52 to penetrate are respectively provided inside the fixed plate 51 and the lower part of the output arm 13; the driving cylinder 52 is connected to the PLC.

[0067] The lower end of the driving cylinder 52 is fixedly provided with a lower end frame, which is composed of an upper disc frame 531, a lower disc frame 532 and a spacer column 533 arranged between the upper disc frame 531 and the lower disc frame 532; the upper disc frame 531 is provided with a first inner hole 5311 for the cylinder arm 521 to pass through, the lower end of the cylinder arm 521 is fixedly provided with a pulling shaft 80, the lower disc frame 532 is provided with a second inner hole (not shown in the figure) for the pulling shaft 80 to pass through, and the lower end of the lower disc frame 532 is fixedly provided with a middle hollow The lower disc frame 532 is provided with a fixed ring frame 54 which is hollow for the pulling shaft 80 to pass through; eight guide holes 551 are regularly opened in the lower disc frame 532, and the extension line of each guide hole 551 will pass through the center of the lower disc frame 532; a vertical guide shaft 552 is passed through each guide hole 551, and a compression piece 553 is fixedly provided at the lower end of each guide shaft 552, and a compression space 56 is formed between the eight compression pieces 553; the sampling component can extend into the compression space 56 and is compressed by the eight compression pieces 553.

[0068] Among them, eight vertical movable holes 61 connected inside and outside are regularly opened on the fixed ring frame 54, and eight groups of pulling sub-components are arranged on the outer peripheral wall of the pulling shaft 80, and the eight groups of pulling sub-components can all extend out of the corresponding movable holes 61; the positions of the eight groups of pulling sub-components correspond to the positions of the eight pressing plates 553 respectively, and each group of pulling sub-components includes two first pulling protrusions 62, and the inner side wall of each pressing plate 553 is provided with two second pulling protrusions, and each first pulling protrusion 62 is connected to the corresponding second pulling protrusion through a pulling paddle 63, and the two ends of the pulling paddle 63 are respectively connected to the corresponding first pulling protrusion 62 and the corresponding second pulling protrusion to form a rotation connection;

[0069] As the pulling shaft 80 moves vertically, the eight pressing plates 553 can be controlled to expand outward or retract inward at the same time.

[0070] Each compression plate 553 is composed of an outer metal hard plate 5531 and an inner flexible soft plate 5532. The outer metal hard plate 5531 is made of stainless steel, which has excellent corrosion resistance and mechanical strength; the inner flexible soft plate 5532 is made of polyurethane, which has good flexibility and friction damping properties and can reinforce and protect the sampling assembly.

[0071] The sampling assembly includes a vertical sampling inner shell 71, which is fixed by an upper shell 711 and a lower shell 712. A sampling inner cavity 72 is provided inside the sampling inner shell 71. A sampling interface 73 is provided at the lower end of the sampling inner shell 71, and the sampling interface 73 is connected to the sampling inner cavity 72. A sampling piston 74 is movably provided in the sampling inner cavity 72, and a vertical sampling shaft 75 is fixedly provided at the upper end of the sampling piston 74. An upper end hole 76 is provided at the upper end of the sampling inner shell 71 for the sampling shaft 75 to extend upward.

[0072] The sampling inner shell 71 can extend into the compression space 56 and is compressed by eight compression pieces 553;

[0073] The right side wall of the sampling shaft 75 is provided with a plurality of regular tooth patterns 751, and a third driving motor 77 is fixedly provided on the back of the sampling inner shell 71. The output shaft of the third driving motor 77 extends into the sampling inner cavity 72 and is fixedly provided with rotating teeth 78, which mesh with the sampling shaft 75 to drive the sampling piston 74 to move in the vertical direction. The third driving motor 77 is connected to the PLC.

[0074] A hollow insertion cavity 801 is provided in at least the lower half of the inner portion of the pulling shaft 80;

[0075] After the sampling inner shell 71 is pressed and fixed by the eight pressing pieces 553 , the inserted cavity 801 just corresponds to the position of the sampling shaft 75 , and the inserted cavity 801 provides space for the sampling shaft 75 to move.

[0076] The process of assembling the sampling component to the pressing component:

[0077] 1. The driving cylinder 52 controls the cylinder arm 521 to move upward, and the cylinder arm 521 will drive the pulling shaft 80 to move upward, and then simultaneously control the eight compression plates 553 to expand outward, and the guide shafts 552 on the eight compression plates 553 will move outward along the corresponding guide holes 551, so that the eight compression plates 553 can expand outward regularly, and the compression space 56 is open.

[0078] 2. Extend the sampling inner shell 71 upward into the compression and fixing space 56, drive the cylinder 52 to control the cylinder arm 521 to move downward, the cylinder arm 521 will drive the pulling shaft 80 to move downward, and then simultaneously control the eight compression and fixing pieces 553 to retract inward to compress and fix the sampling inner shell 71; after the sampling inner shell 71 is compressed and fixed by the eight compression and fixing pieces 553, the extended cavity 801 just corresponds to the position of the sampling shaft 75, and the extended cavity 801 provides space for the sampling shaft 75 to move.

[0079] 3. When the sampling inner shell 71 needs to be removed, the driving cylinder 52 controls the cylinder arm 521 to move upward, and at the same time controls the eight pressing pieces 553 to expand outward, and then the sampling inner shell 71 can be removed.

[0080] The sampling operation process is as follows:

[0081] 1. The first drive motor 231 provides the rotational power for the rotating execution disk 22. After the rotating execution disk 22 rotates, it will drive the fixed arm 12, the vertical stroke assembly, the pressing assembly and the sampling assembly to rotate together, so that the sampling assembly moves to the top of the chemical raw material pool; then the second drive motor 44 in the vertical stroke assembly works, driving the guide block 472 and the output arm 13 to move downward together, so that the sampling inner shell 71 can extend into the chemical raw material pool, and the sampling piston 74 in the sampling inner shell 71 is driven by the third drive motor 77 to perform sampling.

[0082] 2. After the sampling is completed, the second drive motor 44 works, driving the guide block 472 and the output arm 13 to move upward together, so that the sampling inner shell 71 moves out of the chemical raw material pool; then the first drive motor 231 works, and after the rotating execution disk 22 rotates outside, it will drive the fixed arm 12, the vertical stroke assembly, the pressing assembly and the sampling assembly to rotate together, so that the sampling assembly moves to the collection area of ​​the sampling device to receive the sampled chemical raw materials and perform detection.

[0083] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A sampling device for chemical raw material detection, characterized in that: Included are: A bearing base (11) as a bearing structure; A rotating assembly is arranged on the upper end of the supporting base (11) and can rotate relative to the supporting base (11), and a fixed arm (12) is arranged on the rotating assembly and extends vertically upward, and the fixed arm (12) rotates along with the rotating assembly; A vertical stroke component is arranged on the side of the fixed arm (12), and an output arm (13) is arranged on the vertical stroke component and extends vertically downward, and the output arm (13) moves in the vertical direction under the drive of the vertical stroke component; A pressing assembly arranged on the output arm (13); And a sampling component for sampling chemical raw materials, the sampling component is detachably assembled on the pressing component; the sampling component can be moved to the top of the chemical raw material pool or away from the chemical raw material pool under the drive of the rotating component, and when the sampling component is located above the chemical raw material pool, the sampling component can extend downward into or extend upward from the chemical raw material pool under the drive of the vertical stroke component.

2. A sampling device for chemical raw material detection according to claim 1, characterized in that: The bearing base (11) is composed of a plurality of alternately connected bottom straight arms (111) and two vertical straight arms (112) perpendicular to the bottom straight arms (111); the rotating assembly comprises a circular base (21) fixed to the upper end of each bottom straight arm (111); a rotating execution disk (22) is arranged above the circular base (21) and is spaced apart from the circular base; a plurality of convex teeth (221) are regularly arranged on the outer peripheral wall of the rotating execution disk (22); an extension plate (23) is fixedly arranged between the two vertical straight arms (112); a first driving motor (231) is fixedly arranged at the upper end of the extension plate (23); the output shaft of the first driving motor (231) extends into the lower end of the extension plate (23) and is fixedly provided with driving teeth (24); the driving teeth (24) are meshed with the convex teeth (221) on the outer peripheral wall of the rotating execution disk (22); The rotating execution disk (22) has guide areas on opposite sides, and a plurality of first guide shafts (31) are vertically penetrated in the two guide areas, and a first guide wheel (32) is rotatably arranged at the lower end of each of the first guide shafts (31); the circular base (21) is composed of a plurality of stacked circular chassis (211), and the outer diameter of one of the circular chassis (211) is smaller than that of the other circular chassis (211), so that a first annular recessed area (2111) is formed on the outer wall of the circular base (21), and each of the first guide wheels (32) can extend into the first recessed area (2111), so that the rotating execution disk (22) can stably rotate around the circular base (21); An upper pressure plate (33) is arranged at the upper end of the rotating actuator disk (22), and each upper end of the first guide shaft (31) is provided with a thread extending to the upper end of the upper pressure plate (33), and each upper end of the first guide shaft (31) is separately provided with a first nut (34) for locking.

3. A sampling device for chemical raw material detection according to claim 2, characterized in that: A reinforced bottom plate (35) is fixedly provided at the position of the two guide areas corresponding to the lower end of the rotating execution disk (22), and the first guide shaft (31) in each guide area passes through the corresponding reinforced bottom plate (35); The rotating actuating disk (22), the upper pressure disk (33) and the circular bottom disks (211) are all hollowed out in the middle, the inner side of each reinforced bottom disk (35) extends inward and protrudes from the rotating actuating disk (22), the upper pressure disk (33) and the circular bottom disks (211), the inner side of each reinforced bottom disk (35) is vertically penetrated by a plurality of second guide shafts (36), the upper end of each second guide shaft (36) is provided with a thread and extends to the upper end of the corresponding reinforced bottom disk (35), and the upper end of each second guide shaft (36) is separately provided with a second nut (38) for locking; A second guide wheel (37) is rotatably provided at the lower end of each of the second guide shafts (36), wherein the inner diameter of one of the circular chassis (211) is larger than that of the other circular chassis (211), thereby forming an annular second recessed area (2112) on the inner side wall of the circular base (21), and each of the second guide wheels (37) can extend into the second recessed area (2112).

4. A sampling device for chemical raw material detection according to claim 1, characterized in that: The vertical stroke assembly comprises a vertical stroke seat (41), and the vertical stroke seat (41) is fixed to the fixed arm (12) via a bent plate (42); an upper end plate (431) and a lower end plate (432) are fixedly arranged at the upper and lower ends of the front face of the vertical stroke seat (41), a second drive motor (44) is fixedly arranged at the back face of the upper end plate (431), an output shaft of the second drive motor (44) extends to the front face of the upper end plate (431) and is fixedly arranged with a first drive wheel (451), a second drive wheel (452) is rotatably arranged at the front face of the lower end plate (432), and the first drive wheel (451) and the second drive wheel (452) are connected via a drive belt (46); A vertical guide rail (471) is fixedly arranged on the front of the vertical travel seat (41); a guide rail block (472) is slidingly arranged on the upper limit position of the vertical guide rail (471); the middle of the guide rail block (472) is hollowed out for the driving belt (46) to pass through; a clamping piece (473) is fixedly arranged in the middle of the guide rail block (472); the guide rail block (472) is fixed on the driving belt (46) by the clamping piece (473); a positioning measuring piece (482) is fixedly arranged on the upper end of the guide rail block (472) A positioning sensor (481) is fixedly arranged on the front of the upper end plate (431), and the positioning sensor (481) has a positioning opening; during the upward movement of the guide rail block (472), the positioning measuring piece (482) will extend into the positioning opening and generate a trigger signal to limit the position; a lower baffle (49) is fixedly arranged on the lower end of the vertical travel seat (41), and during the downward movement of the guide rail block (472), the guide rail block (472) can contact the lower baffle (49) to limit the position; The output arm (13) is fixed to the lower end of the guide rail block (472) and extends vertically downward.

5. A sampling device for chemical raw material detection according to claim 1, characterized in that: The pressing assembly comprises a fixed plate (51) fixed to the output arm (13), a driving cylinder (52) is fixedly arranged at the lower end of the fixed plate (51), a cylinder arm (521) capable of moving in a vertical direction is arranged in the driving cylinder (52), and a through hole and a penetration groove for the cylinder arm (521) of the driving cylinder (52) to penetrate are respectively provided in the interior of the fixed plate (51) and the lower part of the output arm (13); The lower end of the driving cylinder (52) is fixedly provided with a lower end frame, and the lower end frame is composed of an upper disc frame (531), a lower disc frame (532) and a spacing column (533) arranged between the upper disc frame (531) and the lower disc frame (532); the upper disc frame (531) is provided with a first inner hole (5311) for the cylinder arm (521) to pass through, the lower end of the cylinder arm (521) is fixedly provided with a pulling shaft (80), the lower disc frame (532) is provided with a second inner hole for the pulling shaft (80) to pass through, and the lower end of the lower disc frame (532) is fixedly provided with a middle hollow for the pulling shaft (80) to pass through. The movable shaft (80) is inserted into a fixed ring frame (54); eight guide holes (551) are regularly opened in the lower disc frame (532), and the extension line of each guide hole (551) passes through the center of the lower disc frame (532); a vertical guide shaft (552) is inserted in each guide hole (551), and a pressing piece (553) is fixedly provided at the lower end of each guide shaft (552), and a pressing space (56) is formed between the eight pressing pieces (553); the sampling component can extend into the pressing space (56) and is pressed by the eight pressing pieces (553).

6. A sampling device for chemical raw material detection according to claim 5, characterized in that: The fixed ring frame (54) is regularly provided with eight vertical movable holes (61) connected inside and outside, and the outer peripheral wall of the pulling shaft (80) is provided with eight groups of pulling sub-components, and the eight groups of pulling sub-components can all extend out of the corresponding movable holes (61); the positions of the eight groups of pulling sub-components respectively correspond to the positions of the eight pressing plates (553), and each group of pulling sub-components includes two first pulling protrusions (62), and the inner side wall of each pressing plate (553) is provided with two second pulling protrusions, and each of the first pulling protrusions (62) is connected to the corresponding second pulling protrusion through a pulling paddle (63), and the two ends of the pulling paddle (63) are respectively rotatably connected with the corresponding first pulling protrusion (62) and the corresponding second pulling protrusion; As the pulling shaft (80) moves vertically, the eight pressing plates (553) can be controlled to expand outward or retract inward at the same time.

7. A sampling device for chemical raw material detection according to claim 5, characterized in that: Each of the pressing plates (553) is composed of an outer metal hard plate (5531) and an inner flexible soft plate (5532) which are fixed to each other.

8. A sampling device for chemical raw material detection according to claim 6, characterized in that: The sampling assembly comprises a vertical sampling inner shell (71), the sampling inner shell (71) is fixed by an upper shell (711) and a lower shell (712), a sampling inner cavity (72) is provided inside the sampling inner shell (71), a sampling interface (73) is provided at the lower end of the sampling inner shell (71), and the sampling interface (73) is connected to the sampling inner cavity (72); a sampling piston (74) is movably provided in the sampling inner cavity (72), a vertical sampling shaft (75) is fixedly provided at the upper end of the sampling piston (74), and an upper end hole (76) is provided at the upper end of the sampling inner shell (71) for the sampling shaft (75) to extend upward; The sampling inner shell (71) can extend into the compression and fixing space (56) and is pressed and fixed by eight compression and fixing pieces (553); The right side wall of the sampling shaft (75) is provided with a plurality of regular tooth patterns (751), and a third drive motor (77) is fixedly provided on the back side of the sampling inner shell (71). The output shaft of the third drive motor (77) extends into the sampling inner cavity (72) and is fixedly provided with rotating teeth (78), and the rotating teeth (78) are meshed with the sampling shaft (75) to drive the sampling piston (74) to move in the vertical direction.

9. A sampling device for chemical raw material detection according to claim 8, characterized in that: At least the lower half of the interior of the pulling shaft (80) is provided with a hollow insertion cavity (801); After the sampling inner shell (71) is pressed and fixed by the eight pressing pieces (553), the insertion cavity (801) corresponds exactly to the position of the sampling shaft (75), and the insertion cavity (801) provides space for the sampling shaft (75) to move.

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