Sample quantitative sampling and distributing device for mine detection experiment and sampling method

Abstract

The invention provides a sample quantitative sampling and distributing device for a mine detection experiment and a sampling method, and relates to the field of mine detection experiments. According to the sample quantitative sampling and distributing device for the mine detection experiment and the sampling method, a base is included, a supporting seat is fixedly installed on the upper surface of the base, a supporting column is slidably connected into the supporting seat, a plurality of limiting grooves are formed in the supporting seat, limiting blocks are slidably installed in the limiting grooves, and elastic pieces are fixedly connected between the limiting blocks and the supporting column; according to the sample quantitative sampling and distributing device for the mine detection experiment and the sampling method, the gravity of a sample acts on a bottom plate, a piston and a pipeline assembly hydraulic system, and a specific mechanical structure and a spring assembly cooperatively operate, so that accurate quantitative sampling and distributing are realized; the limitation of a traditional fixed-volume container during sampling of special ore samples is effectively overcome, the device can meet the quantitative sampling requirements of more types of ore samples, and the sampling accuracy and universality are improved.

Description

Technical Field

[0001] The invention relates to the field of mine inspection experiments, and in particular to a sample quantitative sampling and distribution device and a sampling method for mine inspection experiments. Background Art

[0002] Mineral testing experiment refers to a series of experimental activities that use a variety of scientific analysis methods and technical means to systematically detect and evaluate the composition, properties, quality, structure and potential application value of various ores and related mineral products. Its purpose is to accurately grasp the characteristics of mineral resources, and provide key data support and decision-making basis for the exploration, mining, beneficiation, smelting and subsequent deep processing of mineral resources, so as to ensure the efficiency, rationality and sustainability of the development and utilization of mineral resources. In the process of mineral testing experiment, the sample quantitative sampling and distribution device plays an extremely critical bridge role. First, according to the strict requirements of the mineral testing experiment on sample quantity and representativeness, a specific amount of samples is accurately extracted from a large amount of ore raw materials or mineral products to ensure that the samples can reflect the characteristics of the whole batch of ores and meet the precise requirements of the subsequent various analytical instruments for the sample quantity. Secondly, the quantitative samples taken are accurately distributed to different experimental links or testing instruments. The sample quantitative sampling and distribution device can distribute the same batch of samples to, for example, X according to the needs of different experiments in an accurate proportion or quantity. Different detection sites such as X-ray diffractometers, electron microscopes, and chemical analysis laboratories ensure that each experiment can be carried out synchronously and effectively, thereby comprehensively and systematically revealing the intrinsic characteristics of the ore and providing a solid experimental data foundation for the comprehensive evaluation and rational development and utilization of mineral resources.

[0003] Most of the existing mineral sampling devices are fixed-volume sampling containers with scales, such as measuring cylinders. When a certain amount of sample needs to be taken, its accuracy is limited by the manufacturing accuracy of the container, the error in scale reading, and the characteristics of the mineral sample. For example, when the mineral sample particles are uneven in size or irregular in shape, it will affect its packing density in the container, resulting in a large difference in the actual mineral sample mass under the same volume. For viscous mineral samples, such as ores with a high clay content, it is difficult to fill them evenly in a fixed-volume container, and they are prone to adhere to the container wall or form agglomerations, resulting in the inability to accurately meet the quantitative requirements of the fixed volume. For large-particle mineral samples, they may block the entrance of the container or form bridges in the container, hindering the normal filling of the mineral sample, thereby reducing the accuracy of sampling. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a sample quantitative sampling and distribution device and a sampling method for mine inspection experiments, which solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quantitative sampling and distribution device for samples used in mine inspection experiments, including a base, a support seat is fixedly installed on the upper surface of the base, a support column is slidably connected to the inside of the support seat, a plurality of limit grooves are opened inside the support seat, a limit block is slidably installed in the limit groove, an elastic sheet is fixedly connected between the limit block and the support column, a sampling box is fixedly installed on the upper end of the support column, a spring A is fixedly connected between the support seat and the sampling box, and a plurality of discharge barrels are connected to the bottom of the placement box.

[0006] A bracket is fixedly installed on the upper surface of the base, and several groups of sliders are slidably installed in the bracket. A bottom cover for blocking the discharge barrel is fixedly installed between each group of sliders, and a pull rod is slidably connected in the socket of the bottom cover. Several boxes for collecting samples are installed on the outside of the bracket, and a bottom shell assembly for supporting the samples is slidably installed in the box, and a pipeline assembly for loading hydraulic oil is fixedly embedded at the bottom of the box.

[0007] The pipeline assembly includes a connected pipeline A and a pipeline B, one end of the bottom shell assembly is slidably connected to the pipeline A, a fixing part is fixedly installed in the pipeline B, a conical plug is slidably installed on the inner wall of the pipeline B, a spring C is fixedly installed between the conical plug and the fixing part, a push column is fixedly embedded at one end of the conical plug, a cavity is provided in the pipeline B, a pull rod passes through the cavity and is slidably connected to the cavity, a protrusion is fixedly connected to one end of the pull rod, and the protrusion is in contact with the conical plug.

[0008] Preferably, the bracket includes a plurality of support plates, a cross-shaped fixing frame, a plurality of limit plates and a plurality of groups of baffles. The fixing frame is fixedly connected to the box body, the support plate is fixedly connected to the base and the fixing frame, the fixing frame is fixedly connected to the baffle and the limit plate, each baffle is fixedly connected with a spring B between the slider adjacent to it, and each limit rod passes through the limit plate adjacent to it and is slidably connected to the limit plate.

[0009] Preferably, both ends of the conical plug are cylindrical structures, the contact surface between the protrusion and the conical plug is a smooth surface, and the protrusion is an arc-shaped structure, and a spring D is fixedly connected between the upper surface of the protrusion and the inner wall of the cavity.

[0010] Preferably, one end of the limit block is arc-shaped, and a plurality of limit blocks correspond to the positions of a plurality of push pins respectively.

[0011] Preferably, an annular groove for storing test samples is provided in the sampling box, and the upper end of the sampling box is a conical structure.

[0012] Preferably, a rotating frame is rotatably mounted on the upper end of the sampling box, and scrapers for rotating along the inside of the annular groove are fixedly mounted on both ends of the rotating frame. The scrapers are located in the annular groove and are slidably connected to the annular groove.

[0013] Preferably, the bottom shell assembly includes a bottom plate, a fixed rod and a piston. The bottom plate is slidably connected to the box body and the two are in close contact. The two ends of the fixed rod are respectively fixedly connected to the bottom plate and the piston. The outer side of the fixed rod is slidably connected to the upper end of the pipe A, and the piston is slidably connected to the pipe A.

[0014] Preferably, one end of the conical plug is fixedly connected to a limiting ring for abutting against the inner wall of the pipe B.

[0015] Preferably, the pipeline assembly also includes an oil inlet pipe and an oil drain pipe. The oil inlet pipe, pipeline B, pipeline A and the oil drain pipe are connected in sequence. A one-way valve is installed in the oil inlet pipe, and a valve is installed at one end of the oil drain pipe.

[0016] A sampling method for a sample quantitative sampling and distribution device for a mine inspection experiment comprises the following steps: S1: Check the initial state of the device, ensure that the initial state of spring A is in the natural state, spring B is in the compressed state, spring C is in the natural state or the set initial compressed state, spring D is in the natural state, the hydraulic oil in the pipeline assembly is at the appropriate liquid level, and ensure that all components are not stuck and are tightly connected; S2: Slowly pour the sample to be sampled into the annular groove of the sampling box. Note that the pouring speed should not be too fast to avoid overflow or uneven accumulation of samples. At the same time, observe the distribution of samples in the annular groove; S3: Rotate the rotating frame at the upper end of the sampling box to make the scrapers at both ends of the rotating frame rotate stably along the inside of the annular groove. During the rotation process, the scrapers gradually push the samples in the annular groove to the discharge barrel. The conical upper end structure of the sampling box is used to assist the samples to slide smoothly into the discharge barrel and fall onto the bottom shell assembly. As the samples continue to accumulate on the bottom shell assembly, the gravity on the bottom shell assembly gradually increases, and the piston starts to move slowly downward in the pipe A through the fixed rod; S4: The downward movement of the piston in pipe A squeezes the hydraulic oil in pipe B, and the hydraulic pressure gradually increases. When the hydraulic pressure increases enough to overcome the elastic force of spring C, the conical plug begins to move toward the fixed part. During the movement of the conical plug, the push pin at one end of the conical plug moves synchronously. When the push pin moves to contact the limit block, the push pin pushes the limit block out of the limit groove. At this time, under the elastic force of spring A, the support column and the sampling box begin to rise. During the rising process of the sampling box, the discharge of the discharge barrel and the accumulation of the sample on the bottom shell assembly are continuously observed; S5: When the sampling box rises to a predetermined height, the rotating frame stops rotating. At the same time, the protrusion at one end of the pull rod moves upward a certain distance under the action of the spring D. At this time, the pull rod is separated from the bottom cover. Since the spring B is in a compressed state, at the moment when the pull rod is separated from the bottom cover, the elastic deformation force of the spring B is released, pushing the slider to drive the bottom cover to move quickly to the bottom of the discharge barrel, thereby blocking the discharge barrel and stopping the discharge work of the discharge barrel; S6: Inject additional hydraulic oil into the pipeline assembly through the oil inlet pipe to further increase the hydraulic pressure in pipeline B, so that the tapered plug continues to move until the stop ring at one end of the tapered plug abuts against the inner wall of pipeline B. At this time, the position of the tapered plug is fixed, ensuring that the sample on the bottom shell assembly remains stable in subsequent operations; S7: The position of the sampling box after it is raised should ensure that the box is convenient for subsequent sample removal operations.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The sample quantitative sampling and distribution device and sampling method for mine inspection experiments realize accurate quantitative sampling and distribution through the gravity of the sample itself acting on the bottom plate, piston and pipeline component hydraulic system, combined with a specific mechanical structure and spring component to work together. Whether the mineral sample is viscous or in large particle form, it is not affected, and the limitations of traditional fixed volume containers in sampling special mineral samples are effectively overcome. In comparison, the device can adapt to the quantitative sampling needs of more types of mineral samples, and improves the accuracy and versatility of sampling. When the sample in the box reaches the set weight, the bottom cover timely blocks the discharge barrel under the action of the spring B, stops sample distribution, effectively avoids excessive sample addition, ensures the consistency and accuracy of each sampling amount, greatly improves the convenience and reliability of experimental operation, reduces the need for manual monitoring and intervention, and reduces human errors.

[0018] The sample quantitative sampling and distribution device and sampling method for mine inspection experiments have a complete self-resetting mechanism. After the sampling and sample removal operations are completed, the interaction between the spring A, the elastic sheet and the various components can quickly and accurately restore to the initial state, which is convenient for the next round of sample quantitative sampling and distribution work, reduces the operation interval time, and improves the continuity and work efficiency of the overall experimental process. The overall device structure is compact and reasonable, and the various components are closely matched, realizing multi-functional integration in a limited space. It can independently perform quantitative sampling and distribution on multiple boxes, and the samples in each box can be accurately quantified. It can be widely used in mine inspection experiments of different scales and precision requirements, effectively saving the cost of experimental sites and equipment, and improving the utilization rate of experimental resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A sectional view of the overall front view of the present invention; Figure 3 A cross-sectional view of a top view of a support column of the present invention; Figure 4 It is a cross-sectional view of the front view of the sampling box of the present invention; Figure 5It is a cross-sectional view of the front view of the support seat of the present invention; Figure 6 A cross-sectional view of a side view of a slider, a bottom cover and a fixing frame of the present invention; Figure 7 A cross-sectional view of a schematic structural diagram of a pipeline assembly of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure enlargement in the middle; Fig. 9 This is a schematic diagram of the position structure of the bottom cover of the present invention before it moves; Fig.10 This is a schematic diagram of the position structure of the bottom cover after the bottom cover is moved; Fig.11 It is a cross-sectional view of the tapered plug of the present invention.

[0020] In the figure: 1. base; 2. support seat; 3. support column; 4. limit groove; 5. limit block; 6. elastic sheet; 7. sampling box; 8. spring A; 9. discharge barrel; 10. bracket; 101. support plate; 102. fixing frame; 103. limit plate; 104. baffle; 11. slide block; 12. bottom cover; 13. pull rod; 14. box body; 15. bottom shell assembly; 151. bottom plate; 152. fixing rod; 153. piston; 16. pipeline assembly; 161. pipeline A; 162. pipeline B; 17. fixing piece; 18. tapered plug; 19. spring C; 20. push column; 21. cavity; 22. bump; 23. rotating frame; 24. scraper; 25. limit ring; 26. oil inlet pipe; 27. oil discharge pipe; 28. spring B; 29. ​​spring D. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0025] like Figure 1-Figure 11 As shown, a sample quantitative sampling and distribution device for a mine inspection experiment comprises a base 1, a support seat 2 is fixedly mounted on the upper surface of the base 1, a support column 3 is slidably connected to the interior of the support seat 2, a plurality of limit grooves 4 are provided inside the support seat 2, a limit block 5 is slidably mounted in the limit groove 4, one end of the limit block 5 is in an arc shape, and the plurality of limit blocks 5 correspond to the positions of a plurality of push columns 20 respectively, when the push column 20 moves in a direction close to the limit block 5, the limit block 5 can be pushed to move and the limit block 5 can be separated from the limit groove 4, under the action of the spring A8, the support column 3 and the sampling box 7 rise, and an elastic sheet 6 is fixedly connected between the limit block 5 and the support column 3 A sampling box 7 is fixedly installed on the upper end of the support column 3, and an annular groove for storing test samples is provided in the sampling box 7. The upper end of the sampling box 7 is a conical structure, and the sampling box 7 is a hollow structure to reduce the weight of the sampling box 7. A rotating frame 23 is rotatably installed on the upper end of the sampling box 7. Both ends of the rotating frame 23 are fixedly installed with scrapers 24 for rotating along the inside of the annular groove. The scraper 24 is located in the annular groove and is slidably connected to the annular groove. By rotating the scraper 24, the sample in the annular groove can be discharged from the discharge barrel 9. A spring A8 is fixedly connected between the support seat 2 and the sampling box 7. The spring A8 is in a compressed state. The bottom of the placement box is connected to a plurality of discharge barrels 9; A bracket 10 is fixedly installed on the upper surface of the base 1, and the bracket 10 includes a plurality of support plates 101, a cross-shaped fixing frame 102, a plurality of limit plates 103 and a plurality of baffles 104. The fixing frame 102 is fixedly connected to the box 14, the support plate 101 is fixedly connected to the base 1 and the fixing frame 102, the fixing frame 102 is fixedly connected to the baffle 104 and the limit plate 103, and each baffle 104 is fixedly connected to the slider 11 adjacent to it with a spring. B28, each limit rod passes through the limit plate 103 close to it, and is slidably connected with the limit plate 103, the spring B28 is in a compressed state, when the pull rod 13 is separated from the bottom cover 12, the elastic deformation force of the spring B28 can be used to enable the slider 11 to drive the bottom cover 12 to move to the bottom of the discharge barrel 9, so that the bottom cover 12 blocks the discharge barrel 9 and stops the discharge work of the discharge barrel 9. A plurality of groups of sliders 11 are slidably installed in the bracket 10, and each group of sliders 11 is fixedly installed between A bottom cover 12 for blocking the discharge barrel 9 is provided, a pull rod 13 is slidably connected in the jack of the bottom cover 12, one end of the pull rod 13 is hook-shaped, a plurality of boxes 14 for collecting samples are installed on the outside of the bracket 10, the inner wall of the box 14 is a smooth surface, a bottom shell assembly 15 for supporting the sample is slidably installed in the box 14, the bottom shell assembly 15 includes a bottom plate 151, a fixing rod 152 and a piston 153, the bottom plate 151 is slidably connected to the box 14, and the two are in close contact The two ends of the fixed rod 152 are fixedly connected to the bottom plate 151 and the piston 153 respectively. The outer side of the fixed rod 152 is slidably connected to the upper end of the pipeline A161. The piston 153 is slidably connected to the pipeline A161. When the sample is loaded into the box 14, the gravity of the sample can make the bottom shell assembly 15 drop. At this time, the piston 153 drops along the pipeline A161, so that the hydraulic pressure in the pipeline B162 increases. The bottom of the box 14 is fixedly inlaid with a pipeline assembly 16 for loading hydraulic oil; The pipeline assembly 16 includes a pipeline A161 and a pipeline B162 which are connected. The upper end of the pipeline A161 is sealed. One end of the bottom shell assembly 15 is slidably connected to the pipeline A161. A fixing member 17 is fixedly installed in the pipeline B162. The interior of the fixing member 17 is a hollow structure. A conical plug 18 is slidably installed on the inner wall of the pipeline B162. The conical plug 18 is in close contact with the inner wall of the pipeline B162. Both ends of the conical plug 18 are cylindrical structures. The protrusion 22 is in contact with the conical plug. The contact surface of the conical plug 18 is a smooth surface, and the protrusion 22 is an arc-shaped structure, which reduces the resistance between the conical plug 18 and the protrusion 22. When the conical plug 18 moves, it is conducive to pushing the protrusion 22 up, which is conducive to pulling the pull rod 13 out of the bottom cover 12. A spring D29 is fixedly connected between the upper surface of the protrusion 22 and the inner wall of the cavity 21. The spring D29 is in a static state. One end of the conical plug 18 is fixedly connected to a limit ring 25 for resisting the inner wall of the pipe B162. When the conical plug 18 moves, it is conducive to pushing the protrusion 22 up, thereby facilitating the pull rod 13 to be removed from the bottom cover 12. When the conical plug 18 moves, the limiting ring 25 is conducive to abutting the inner wall of the pipe B162, so that the position of the conical plug 18 no longer moves, which serves the purpose of limiting the position of the conical plug 18. In addition, the limiting ring 25 can prevent the protrusion 22 from being separated from the conical plug 18 when the conical plug 18 moves in the reverse direction. The pipeline assembly 16 also includes an oil inlet pipe 26 and an oil discharge pipe 27. The oil inlet pipe 26, the pipe B162, the pipe A161 and the oil discharge pipe 27 are connected in sequence. A one-way valve is installed in the oil inlet pipe 26. A valve is installed at one end of the oil drain pipe 27, and hydraulic oil is injected into the pipeline assembly 16 through the oil inlet pipe 26. The hydraulic oil is discharged by opening the valve. A spring C19 is fixedly installed between the tapered plug 18 and the fixing part 17. A push column 20 is fixedly embedded at one end of the tapered plug 18. A cavity 21 is provided in the pipeline B162. The pull rod 13 passes through the cavity 21 and is slidably connected to the cavity 21. A protrusion 22 is fixedly connected to one end of the pull rod 13, and the protrusion 22 is in contact with the tapered plug 18.

[0026] A sampling method for a sample quantitative sampling and distribution device for a mine inspection experiment comprises the following steps: S1: Check the initial state of the device, ensure that the initial state of spring A8 is in a natural state, spring B28 is in a compressed state, spring C19 is in a natural state or a set initial compressed state, spring D29 is in a natural state, and the hydraulic oil in the pipeline assembly 16 is at a suitable liquid level which can be pre-set according to experience or experimental requirements, and ensure that each component is not stuck and is tightly connected; S2: slowly pour the sample to be sampled into the annular groove of the sampling box 7, and pay attention to the pouring speed should not be too fast to avoid overflow or uneven accumulation of the sample, and observe the distribution of the sample in the annular groove; S3: Rotate the rotating frame 23 at the upper end of the sampling box 7, so that the scrapers 24 at both ends of the rotating frame 23 rotate stably along the inside of the annular groove. The scrapers 24 gradually push the sample in the annular groove to the discharge barrel 9 during the rotation process. The conical upper end structure of the sampling box 7 assists the sample to slide smoothly into the discharge barrel 9 and fall onto the bottom shell assembly 15. As the sample continues to accumulate on the bottom shell assembly 15, the gravity on the bottom shell assembly 15 gradually increases, and the piston 153 starts to move slowly downward in the pipe A through the fixed rod 152; S4: The downward movement of the piston 153 in the pipe A squeezes the hydraulic oil in the pipe B, and the hydraulic pressure gradually increases. When the hydraulic pressure increases to a level sufficient to overcome the elastic force of the spring C19, the conical plug 18 begins to move toward the fixing member 17. During the movement of the conical plug 18, the push pin 20 at one end thereof moves synchronously. When the push pin 20 moves to contact the limit block 5, the push pin 20 pushes the limit block 5 out of the limit groove 4. At this time, under the elastic force of the spring A8, the support column 3 and the sampling box 7 begin to rise. During the rising process of the sampling box 7, the discharge condition of the discharge barrel 9 and the accumulation condition of the sample on the bottom shell assembly 15 are continuously observed. S5: When the sampling box 7 rises to a predetermined height, which can be pre-calibrated according to the sample quantity requirements of the experiment, the rotating frame 23 stops rotating. At the same time, the protrusion 22 at one end of the pull rod 13 moves upward by a certain distance under the action of the spring D29. At this time, the pull rod 13 is separated from the bottom cover 12. Since the spring B28 is in a compressed state, the elastic deformation force of the spring B28 is released at the moment when the pull rod 13 is separated from the bottom cover 12, pushing the slider 11 to drive the bottom cover 12 to move quickly to the bottom of the discharge barrel 9, thereby blocking the discharge barrel 9 and stopping the discharge work of the discharge barrel 9. S6: additional hydraulic oil is injected into the pipeline assembly 16 through the oil inlet pipe 26 to further increase the hydraulic pressure in the pipeline B, so that the tapered plug 18 continues to move until the stop ring 25 at one end of the tapered plug 18 abuts against the inner wall of the pipeline B. At this time, the position of the tapered plug 18 is fixed, ensuring that the sample on the bottom shell assembly 15 remains stable in subsequent operations; S7: The position of the sampling box 7 after it is raised should ensure that the box body 14 is convenient for the subsequent sample removal operation.

[0027] When in use, first place a certain amount of sample in the annular groove of the sampling box 7, and a part of the sample will be distributed into a plurality of boxes 14 along a plurality of discharge barrels 9, and fall to the bottom plate 151. The gravity of the sample will exert downward pressure on the bottom plate 151, so that the bottom plate 151 drives the fixed rod 152 to descend, and the fixed rod 152 drives the piston 153 to descend along the inner wall of the pipeline A161, so that the hydraulic pressure in the pipeline A161 increases, and the pipeline A161 is connected with the pipeline B162, so the hydraulic pressure in the pipeline B162 increases, and the hydraulic oil in the pipeline B162 pushes the conical plug 18 to move. As the bottom plate 151 descends, the conical plug 18 overcomes the elastic force of the spring D29, as shown in FIG. Fig.11 As shown, the initial position of the protrusion 22 and the conical plug 18 is located at B of the conical plug 18. When the conical plug 18 moves, the conical plug 18 contacts the protrusion 22 at C, and the protrusion 22 moves from a low position to a high position, so that the protrusion 22 drives the pull rod 13 to rise. At this time, the conical plug 18 drives the limit ring 25 to contact the inner wall of the pipe B162, and the conical plug 18 no longer moves. It should be noted that at this time, the weight of the sample reaches the maximum, and then the protrusion 22 drives the pull rod 13 to rise and disengage the pull rod 13 from the socket of the bottom cover 12. Since the spring B28 is in a compressed state, the elastic deformation force of the spring B28 causes the slider 11 close to it to move toward the direction close to the box body 14, and the two sliders 11 drive the bottom cover 12 to move, as shown in FIG. Fig. 9 and Fig.10 As shown, when one side of the slider 11 contacts one of the inner walls of the fixing frame 102, the bottom cover 12 should be at the same axis as the box body 14. At this time, the bottom cover 12 is stuck between the discharge barrel 9 and the box body 14, so that the material in the discharge barrel 9 no longer enters the box body 14, thereby achieving the purpose of quantitative sampling and distribution.

[0028] Next, by rotating the rotating frame 23, the rotating frame 23 drives the scraper 24 to rotate along the annular groove of the sampling box 7, so that the sample can be moved to several discharge barrels 9, and the samples are distributed to several boxes 14 respectively. The samples of several boxes 14 are independently quantitatively sampled. When the sample in any box 14 reaches a certain weight, the corresponding bottom cover 12 stops distributing the sample. Since the conical plug 18 is fixed to the push column 20, after the conical plug 18 moves, it will drive the push column 20 to move. The push column 20 squeezes the limit block 5 and separates the limit block 5 from the limit groove 4. When the several bottom covers 12 are moved, the several limit blocks 5 are It disengages from several limit grooves 4. At this time, there is no resistance between the limit block 5 and the limit groove 4, and the spring A8 is in a compressed state. Therefore, under the elastic deformation force of the spring A8, the spring A8 will drive the sampling box 7 to rise, and the sampling box 7 will drive several discharge barrels 9 to rise and maintain a certain distance from the box body 14 to facilitate subsequent removal work. It should be noted that when any bottom cover 12 does not move, the sampling box 7 will not move under the limiting action of the limit block 5 and the limit groove 4. This is because the discharge barrel 9 needs to be close to the box body 14 to facilitate the falling of the sample and avoid the initial position of the sample being too high, resulting in excessive impact force when falling.

[0029] Then, when the sample in each box 14 reaches a certain amount and the discharge barrel 9 rises, the sample needs to be taken out. When taking it out, the bottom cover 12 is pushed to its original position first, and then the external oil pump can be used to inject the hydraulic oil into the pipeline assembly 16 through the oil inlet pipe 26. As the hydraulic pressure in the pipeline assembly 16 increases, the piston 153 will drive the fixed rod 152 and the bottom plate 151 to rise. When the bottom plate 151 rises, the sample in the box 14 can be pushed out, and then the oil pump stops working, and the valve is opened to release the hydraulic oil in the pipeline assembly 16. The oil is discharged from the oil drain pipe 27 to the external container, and the hydraulic pressure in the pipeline assembly 16 returns to its original state. At this time, under the elastic deformation of the spring D29, it returns to its natural state, the protrusion 22 contacts with the B of the tapered plug 18 again, the pull rod 13 descends and is inserted into the socket of the bottom cover 12. Repeat the steps to take out the samples in each box body 14. Finally, the sampling box 7 can be reset by pressing. Under the action of the elastic sheet 6, several limit blocks 5 are respectively inserted into the limit groove 4, so that the whole is reset.

[0030] It should be noted that the calibration of traditional fixed-volume containers is relatively complicated and not precise enough. Unlike the electronic balance in weight quantitative sampling, which can be calibrated quickly and accurately using standard weights, the calibration of fixed-volume containers usually requires the use of high-precision liquids such as water or special solutions of known density to be calibrated at a specific temperature. Moreover, the liquid calibration method itself also has certain errors. For example, temperature changes will affect the liquid density and thus affect the calibration results. In addition, for some containers with special shapes or large volumes, the calibration operation is more difficult, and it is difficult to ensure accurate calibration before each use. For viscous mineral samples, such as those containing high viscosity, It is difficult to evenly fill ore with soil components in a fixed volume container and it is easy for the ore to adhere to the container wall or form agglomerates, resulting in the inability to accurately meet the quantitative requirements of the fixed volume. For large-particle ore samples, the entrance of the container may be blocked or a bridge may be formed in the container, hindering the normal filling of the ore sample. The present device only needs to place the ore sample in the sampling box 7, is not limited by the physical form of the ore sample, can accurately weigh, and achieve quantitative sampling with high accuracy. Moreover, compared with traditional weighing equipment, when a certain amount is reached, the feeding can be automatically stopped, and the sample can be easily removed by pressurizing the pipeline assembly 16.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0032] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample quantitative sampling and distribution device for a mine inspection experiment, comprising a base (1), characterized in that: A support seat (2) is fixedly mounted on the upper surface of the base (1), a support column (3) is slidably connected inside the support seat (2), a plurality of limit grooves (4) are provided inside the support seat (2), a limit block (5) is slidably mounted inside the limit groove (4), an elastic sheet (6) is fixedly connected between the limit block (5) and the support column (3), a sampling box (7) is fixedly mounted on the upper end of the support column (3), a spring A (8) is fixedly connected between the support seat (2) and the sampling box (7), and a plurality of discharge barrels (9) are connected to the bottom of the placement box; A bracket (10) is fixedly mounted on the upper surface of the base (1), a plurality of groups of sliders (11) are slidably mounted in the bracket (10), a bottom cover (12) for blocking the discharge barrel (9) is fixedly mounted between each group of sliders (11), a pull rod (13) is slidably connected in the insertion hole of the bottom cover (12), a plurality of boxes (14) for collecting samples are mounted on the outside of the bracket (10), a bottom shell assembly (15) for supporting the samples is slidably mounted in the box (14), and a pipeline assembly (16) for filling hydraulic oil is fixedly embedded in the bottom of the box (14); The pipeline assembly (16) comprises a pipeline A (161) and a pipeline B (162) which are connected to each other. One end of the bottom shell assembly (15) is slidably connected to the pipeline A (161). A fixing member (17) is fixedly installed in the pipeline B (162). A conical plug (18) is slidably installed on the inner wall of the pipeline B (162). A spring C (19) is fixedly installed between the conical plug (18) and the fixing member (17). A push column (20) is fixedly embedded at one end of the conical plug (18). A cavity (21) is provided in the pipeline B (162). The pull rod (13) passes through the cavity (21) and is slidably connected to the cavity (21). A protrusion (22) is fixedly connected to one end of the pull rod (13), and the protrusion (22) contacts the conical plug (18).

2. A sample quantitative sampling and distribution device for mine inspection experiments according to claim 1, characterized in that: The bracket (10) comprises a plurality of support plates (101), a cross-shaped fixing frame (102), a plurality of limiting plates (103) and a plurality of groups of baffles (104); the fixing frame (102) is fixedly connected to the box body (14); the support plate (101) is fixedly connected to the base (1) and the fixing frame (102); the fixing frame (102) is fixedly connected to the baffles (104) and the limiting plates (103); each baffle (104) is fixedly connected to a slider (11) adjacent to it with a spring B (28); each limiting rod penetrates the limiting plate (103) adjacent to it and is slidably connected to the limiting plate (103).

3. The sample quantitative sampling and distribution device for mine inspection experiments according to claim 1 is characterized in that: Both ends of the conical plug (18) are cylindrical structures, the contact surfaces between the protrusion (22) and the conical plug (18) are smooth surfaces, and the protrusion (22) is an arc-shaped structure. A spring D (29) is fixedly connected between the upper surface of the protrusion (22) and the inner wall of the cavity (21).

4. A sample quantitative sampling and distribution device for mine inspection experiments according to claim 1, characterized in that: One end of the limit block (5) is in an arc shape, and a plurality of limit blocks (5) respectively correspond to the positions of a plurality of push pins (20).

5. The sample quantitative sampling and distribution device for mine inspection experiments according to claim 1 is characterized in that: The sampling box (7) is provided with an annular groove for storing test samples, and the upper end of the sampling box (7) is a conical structure.

6. A sample quantitative sampling and distribution device for mine inspection experiments according to claim 5, characterized in that: A rotating frame (23) is rotatably mounted on the upper end of the sampling box (7), and scrapers (24) for rotating along the inside of the annular groove are fixedly mounted on both ends of the rotating frame (23). The scrapers (24) are located in the annular groove and are slidably connected to the annular groove.

7. A sample quantitative sampling and distribution device for mine inspection experiments according to claim 1, characterized in that: The bottom shell assembly (15) comprises a bottom plate (151), a fixing rod (152) and a piston (153); the bottom plate (151) is slidably connected to the box body (14), and the two are in close contact; two ends of the fixing rod (152) are fixedly connected to the bottom plate (151) and the piston (153), respectively; the outer side of the fixing rod (152) is slidably connected to the upper end of the pipeline A (161); and the piston (153) is slidably connected to the pipeline A (161).

8. The sample quantitative sampling and distribution device for mine inspection experiments according to claim 1 is characterized in that: One end of the conical plug (18) is fixedly connected to a limiting ring (25) for abutting against the inner wall of the pipe B (162).

9. A sample quantitative sampling and distribution device for mine inspection experiments according to claim 1, characterized in that: The pipeline assembly (16) further comprises an oil inlet pipe (26) and an oil outlet pipe (27); the oil inlet pipe (26), the pipeline B (162), the pipeline A (161) and the oil outlet pipe (27) are connected in sequence; a one-way valve is installed in the oil inlet pipe (26), and a valve is installed at one end of the oil outlet pipe (27).

10. A sampling method for a sample quantitative sampling and distribution device for a mine inspection experiment, characterized in that: The sample quantitative sampling and distribution device for mine inspection experiments according to any one of claims 1 to 9 comprises the following steps: S1: Check the initial state of the device, ensure that the initial state of spring A (8) is in a natural state, spring B (28) is in a compressed state, spring C (19) is in a natural state or a set initial compressed state, spring D (29) is in a natural state, the hydraulic oil in the pipe assembly (16) is at an appropriate level, and ensure that all components are not stuck and are tightly connected; S2: slowly pour the sample to be sampled into the annular groove of the sampling box (7). Note that the pouring speed should not be too fast to avoid overflow or uneven accumulation of the sample. At the same time, observe the distribution of the sample in the annular groove; S3: Rotate the rotating frame (23) at the upper end of the sampling box (7) so that the scrapers (24) at both ends of the rotating frame (23) rotate stably along the inside of the annular groove. During the rotation process, the scrapers (24) gradually push the sample in the annular groove to the discharge barrel (9). The conical upper end structure of the sampling box (7) assists the sample to slide smoothly into the discharge barrel (9) and fall onto the bottom shell assembly (15). As the sample continues to accumulate on the bottom shell assembly (15), the gravity on the bottom shell assembly (15) gradually increases, and the piston (153) starts to move slowly downward in the pipe A through the fixed rod (152); S4: The downward movement of the piston (153) in the pipe A squeezes the hydraulic oil in the pipe B, and the hydraulic pressure gradually increases. When the hydraulic pressure increases to a level sufficient to overcome the elastic force of the spring C (19), the conical plug (18) begins to move toward the fixing member (17). During the movement of the conical plug (18), the push pin (20) at one end thereof moves synchronously. When the push pin (20) moves to contact the limit block (5), the push pin (20) pushes the limit block (5) out of the limit groove (4). At this time, under the elastic force of the spring A (8), the support column (3) and the sampling box (7) begin to rise. During the rising process of the sampling box (7), the discharge of the discharge barrel (9) and the accumulation of the sample on the bottom shell assembly (15) are continuously observed. S5: When the sampling box (7) rises to a predetermined height (the height can be pre-calibrated according to the sample quantity required by the experiment), the rotating frame (23) stops rotating. At the same time, the protrusion (22) at one end of the pull rod (13) moves upward for a certain distance under the action of the spring D (29). At this time, the pull rod (13) is separated from the bottom cover (12). Since the spring B (28) is in a compressed state, at the moment when the pull rod (13) is separated from the bottom cover (12), the elastic deformation force of the spring B (28) is released, pushing the slider (11) to drive the bottom cover (12) to move quickly to the bottom of the discharge barrel (9), thereby blocking the discharge barrel (9) and stopping the discharge work of the discharge barrel (9); S6: additional hydraulic oil is injected into the pipe assembly (16) through the oil inlet pipe (26) to further increase the hydraulic pressure in the pipe B, so that the tapered plug (18) continues to move until the stop ring (25) at one end of the tapered plug (18) abuts against the inner wall of the pipe B. At this time, the position of the tapered plug (18) is fixed, ensuring that the sample on the bottom shell assembly (15) remains stable in subsequent operations; S7: The position of the sampling box (7) after it is raised should ensure that the box body (14) is convenient for the subsequent sample removal operation.

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