Bulk material stratified sampling device

Abstract

The utility model relates to the field of sampling equipment, and discloses a bulk material stratified sampling device which comprises a vertical cylinder, an inserting cone, a fixed cover cylinder, a T-shaped handle, a sampling cylinder, a spiral conveying shaft, a driving assembly and a sealing assembly, the inserting cone is fixedly installed at the bottom end of the vertical cylinder, the top of the vertical cylinder is of an opening structure, and the fixed cover cylinder is fixedly installed at the top of the vertical cylinder. The T-shaped handle is fixedly mounted at the top of the fixed cover cylinder, the multiple sampling cylinders are fixedly mounted on the left side wall of the vertical cylinder and are symmetrically and uniformly distributed, the left sides of the multiple sampling cylinders are of opening structures, the right sides of the multiple sampling cylinders extend into the vertical cylinder, and the multiple spiral conveying shafts are arranged in the vertical cylinder. And the plurality of spiral conveying shafts are rotationally mounted in the corresponding sampling barrels respectively. The bulk material stratified sampling device has the following advantages and effects that stratified sampling can be conveniently carried out on different depth positions of bulk materials at the same time, the operation steps are simple and convenient, the sampling time is saved, and the purposes of accurate sampling and efficient sampling are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to a bulk material stratified sampling device. Background Art

[0002] When conducting on-site acceptance of bulk materials, it is often necessary to conduct stratified sampling and testing of the bulk materials that have arrived, and a stratified sampling device for bulk materials is required during the sampling process. After searching, the patent document with the authorization announcement number CN219915010U announces a stratified rapid sampling device for bulk materials, including an outer cylinder, an inner cylinder, a spiral shaft and a driving device, the inner cylinder is movably inserted into the inner part of the outer cylinder, three first feed ports are longitudinally spaced on the outer cylinder, three second feed ports are longitudinally arranged on the inner cylinder, the inner cylinder is slid up and down, and only one second feed port is always aligned with the first feed port, the spiral shaft is installed inside the inner cylinder, the spiral shaft includes a rotating shaft and a spiral blade, the spiral blade is wound and fixed on the rotating shaft, the lower end of the rotating shaft is rotatably connected to the lower end of the outer cylinder, and the upper end is connected and driven with a driving device installed at the upper end of the outer cylinder, the outer cylinder is provided with a first discharge port on the upper side of the first feed port, and the inner cylinder is provided with a second discharge port at a position corresponding to the first discharge port. Through the above structure, bulk material sampling can be carried out conveniently and quickly, and materials of different depths can be obtained by inserting once, which is simple and convenient to operate and improves sampling efficiency.

[0003] In actual operation, it is found that the above-mentioned existing scheme still has at least the following shortcomings: when performing stratified sampling, although it is only necessary to insert the outer cylinder into the bulk material for stratified sampling once, when performing the stratified sampling operation, it is still necessary to adjust the position of the inner cylinder in the outer cylinder multiple times so that the first feed port and the multiple second feed ports are aligned one by one, so that material samples of different depths can be taken out in turn. The operation steps are relatively cumbersome, which increases the time of stratified sampling and reduces the sampling efficiency. In addition, during the stratified sampling process, after completing one layer of sampling, some material will remain in the inner cylinder. When another layer of sampling is performed, it is necessary to discharge the remaining material in the inner cylinder first, which increases the sampling time and easily causes the two layers of material at different depths to mix together, resulting in inaccurate sampling. Therefore, we propose a stratified sampling device for bulk materials to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a bulk material stratified sampling device, which is convenient for simultaneously performing stratified sampling on different depth positions of bulk materials, has simple and convenient operation steps, saves sampling time, and achieves the effects of accurate sampling and efficient sampling.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a stratified sampling device for bulk materials, comprising a vertical cylinder, an insert cone, a fixed cover cylinder, a T-shaped handle, a sampling cylinder, a spiral feed shaft, a driving assembly and a sealing assembly, wherein the insert cone is fixedly installed at the bottom end of the vertical cylinder, the top of the vertical cylinder is an open structure, the fixed cover cylinder is fixedly installed at the top of the vertical cylinder, the T-shaped handle is fixedly installed at the top of the fixed cover cylinder, there are multiple sampling cylinders, and the multiple sampling cylinders are all fixedly installed on the left side wall of the vertical cylinder and are evenly distributed, the left sides of the multiple sampling cylinders are all open structures, the right sides of the multiple sampling cylinders extend into the vertical cylinder, there are multiple spiral feed shafts, and the multiple spiral feed shafts are respectively rotatably installed in the corresponding sampling cylinders, the right ends of the multiple spiral feed shafts extend into the vertical cylinder, the driving assembly is arranged on the vertical cylinder, the driving assembly is used to control the rotation of the multiple spiral feed shafts, the sealing assembly is arranged on the left side of the vertical cylinder, and the sealing assembly is used to block the left openings of the multiple sampling cylinders.

[0006] The utility model is further configured as follows: the driving assembly includes a shaft seat, a driving shaft, a plurality of active bevel gears, a plurality of driven bevel gears, a motor and a battery; the shaft seat is fixedly mounted on the bottom inner wall of the vertical cylinder; the bottom end of the driving shaft is rotatably connected to the shaft seat; the plurality of active bevel gears are fixedly sleeved on the driving shaft; the plurality of driven bevel gears are respectively fixedly mounted on the right ends of the corresponding spiral feeding shafts; the plurality of active bevel gears are respectively meshed with the corresponding driven bevel gears; the motor is fixedly mounted on the bottom inner wall of the fixed cover cylinder; the output shaft end of the motor extends into the vertical cylinder and is fixedly connected to the top end of the driving shaft; the battery is fixedly mounted on the top inner wall of the fixed cover cylinder; and the battery is electrically connected to the motor.

[0007] The utility model is further configured as follows: a maintenance opening is provided on the right inner wall of the fixed cover cylinder, a maintenance door is fixedly installed on the right outer wall of the fixed cover cylinder by screws, and the maintenance door is adapted to the maintenance opening.

[0008] The utility model is further configured as follows: the sealing assembly includes an electric telescopic rod, a connecting plate and a baffle, the electric telescopic rod is fixedly mounted on the bottom of the fixed cover cylinder and is located on the left side of the vertical cylinder, the electric telescopic rod is electrically connected to the battery, the connecting plate is fixedly mounted on the output shaft end of the electric telescopic rod, the baffle is fixedly mounted on the bottom of the connecting plate and is located on the left side of the sampling cylinder, the left outer wall of the sampling cylinder is in sliding and sealing contact with the right side wall of the baffle, a plurality of feed holes are opened on the baffle, and the plurality of feed holes are respectively located directly below the corresponding sampling cylinders.

[0009] The utility model is further configured as follows: the width dimension of the baffle is greater than the outer diameter dimension of the sampling tube.

[0010] The utility model is further configured as follows: the diameter of the feed hole is set to be the same as the outer diameter of the sampling tube, and the distances between the centers of the multiple feed holes and the centers of the corresponding sampling tubes are set to be the same.

[0011] The utility model is further configured as follows: a limit plate located above the connecting plate is fixedly installed on the left outer wall of the vertical cylinder, and the vertical spacing dimension between the limit plate and the connecting plate is set to be the same as the spacing between the centers of the sampling cylinders corresponding to the hole center distance of the feed hole.

[0012] The utility model is further configured as follows: the diameter of the insert cone decreases from top to bottom, the maximum diameter of the insert cone is larger than the outer diameter of the vertical cylinder, and the bottom of the baffle contacts the top of the insert cone.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model utilizes a drive assembly consisting of a shaft seat, a drive shaft, a plurality of active bevel gears, a plurality of driven bevel gears, a motor and a battery, and cooperates with the use of a plurality of sampling barrels and a plurality of spiral feed shafts to facilitate simultaneous layered sampling of bulk materials at different depths, thereby reducing the number of operating steps, saving sampling time and achieving the purpose of efficient sampling.

[0015] 2. The utility model utilizes a sealing assembly composed of an electric telescopic rod, a connecting plate and a baffle, and cooperates with the use of a limit plate to facilitate linear adjustment of the position of the baffle. The baffle can be adjusted to a state where the openings of multiple sampling tubes are blocked, and multiple feed holes on the baffle can be adjusted to align with the corresponding sampling tubes. In the process of gradually inserting the stand tube and the baffle into the bulk material and gradually withdrawing the stand tube and the baffle from the bulk material, the baffle can be used to block the openings of the multiple sampling tubes, thereby ensuring that materials at other positions will not enter the multiple sampling tubes, thereby achieving the purpose of accurate sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0017] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0018] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0019] In the figure, 1, vertical cylinder; 2, insert cone; 3, fixed cover cylinder; 4, T-shaped handle; 5, sampling cylinder; 6, spiral feed shaft; 7, shaft seat; 8, driving shaft; 9, active bevel gear; 10, driven bevel gear; 11, motor; 12, battery; 13, electric telescopic rod; 14, connecting plate; 15, baffle; 16, feed hole; 17, limit plate; 18, maintenance door. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a bulk material stratified sampling device, comprising a vertical cylinder 1, an insert cone 2, a fixed cover cylinder 3, a T-shaped handle 4, a sampling cylinder 5, a spiral feed shaft 6, a driving assembly and a sealing assembly, wherein:

[0022] The insert cone 2 is fixedly installed at the bottom end of the vertical cylinder 1, and the insert cone 2 is used to facilitate the vertical cylinder 1 to be smoothly inserted into the bulk material. The top of the vertical cylinder 1 is an open structure, the fixed cover cylinder 3 is fixedly installed on the top of the vertical cylinder 1, and the T-shaped handle 4 is fixedly installed on the top of the fixed cover cylinder 3. The setting of the T-shaped handle 4 is convenient for hand-holding and carrying the sampling device as a whole. There are multiple sampling cylinders 5, and the multiple sampling cylinders 5 are all fixedly installed on the left side wall of the vertical cylinder 1 and are evenly distributed. The left sides of the multiple sampling cylinders 5 are all open structures, and the right sides of the multiple sampling cylinders 5 extend into the vertical cylinder 1. The multiple sampling cylinders 5 are used to hold materials at different depths of the bulk material, thereby achieving the purpose of stratified sampling. The spiral There are multiple feeding shafts 6, and multiple spiral feeding shafts 6 are rotatably installed in corresponding sampling tubes 5 respectively. The right ends of multiple spiral feeding shafts 6 extend into the vertical tube 1. A driving assembly is arranged on the vertical tube 1. The driving assembly is used to control the rotation of multiple spiral feeding shafts 6. The above-mentioned driving assembly includes a shaft seat 7, a driving shaft 8, multiple active bevel gears 9, multiple driven bevel gears 10, a motor 11 and a battery 12. The shaft seat 7 is fixedly installed on the bottom inner wall of the vertical tube 1. The bottom end of the driving shaft 8 is rotatably connected with the shaft seat 7. Multiple active bevel gears 9 are fixedly sleeved on the driving shaft 8. Multiple driven bevel gears 10 are fixedly installed on the right ends of corresponding spiral feeding shafts 6.

[0023] The active bevel gears 9 are respectively meshed with the corresponding driven bevel gears 10, and the motor 11 is fixedly mounted on the bottom inner wall of the fixed cover cylinder 3. The output shaft end of the motor 11 extends into the vertical cylinder 1 and is fixedly connected to the top of the driving shaft 8. The battery 12 is fixedly mounted on the top inner wall of the fixed cover cylinder 3. The battery 12 is electrically connected to the motor 11. The battery 12 can be used to provide electrical energy to the motor 11. The motor 11 is used to control the rotation of the driving shaft 8 and multiple active bevel gears 9. By utilizing the meshing transmission effect of multiple active bevel gears 9 and the corresponding multiple driven bevel gears 10, multiple spiral feeding shafts 6 can be controlled to rotate synchronously at the same time, thereby being able to simultaneously extract materials at different depths into the corresponding sampling cylinders 5, thereby achieving the purpose of accurate sampling and efficient sampling. When replenishment is needed, the motor 11 adopts a forward and reverse motor, and the battery 12 is a rechargeable battery. The sealing component is arranged on the vertical cylinder 1. On the left side of the cylinder 1, the sealing assembly is used to seal the left openings of multiple sampling cylinders 5. The above-mentioned sealing assembly includes an electric telescopic rod 13, a connecting plate 14 and a baffle 15. The electric telescopic rod 13 is fixedly installed at the bottom of the fixed cover cylinder 3 and is located on the left side of the vertical cylinder 1. The electric telescopic rod 13 is electrically connected to the battery 12. The connecting plate 14 is fixedly installed at the output shaft end of the electric telescopic rod 13. The baffle 15 is fixedly installed at the bottom of the connecting plate 14 and is located on the left side of the sampling cylinder 5. The left outer wall of the sampling cylinder 5 is in sliding and sealing contact with the right side wall of the baffle 15. The baffle 15 is provided with multiple feed holes 16, and the multiple feed holes 16 are respectively located directly below the corresponding sampling cylinders 5. The battery 12 is also used to provide electrical energy to the electric telescopic rod 13. The electric telescopic rod 13 is used to control the linear movement of the connecting plate 14 and the baffle 15, so that the positions of the multiple feed holes 16 can be adjusted. It should be noted that, Figure 1 , Figure 2 and Figure 3 As shown, the electric telescopic rod 13 is in an extended state.

[0024] In this embodiment, if necessary, a multi-control switch is fixedly installed on the outer wall of the fixed cover tube 3, and the motor 11, the electric telescopic rod 13, the battery 12 and the multi-control switch are electrically connected through wires. The multi-control switch is used to control the power supply and operation of the motor 11 and the electric telescopic rod 13 respectively. Its line connection and control methods are mature technical means in this field, so they will not be described in detail in this article.

[0025] In this embodiment, the number of sampling tubes 5 is not less than three, and the number of active bevel gears 9, driven bevel gears 10 and feed holes 16 is set to be the same as the number of sampling tubes 5, thereby being able to simultaneously sample at least three different depths of the bulk material.

[0026] In this embodiment, a maintenance port is opened on the right inner wall of the fixed cover barrel 3, and a maintenance door 18 is fixedly installed on the right outer wall of the fixed cover barrel 3 by screws. The maintenance door 18 is adapted to the maintenance port to facilitate the inspection and maintenance of the electrical components inside the fixed cover barrel 3, and also to facilitate the charging of the battery 12.

[0027] In this embodiment, the width of the baffle 15 is greater than the outer diameter of the sampling tube 5 , so as to ensure that the baffle 15 can fully and effectively block the openings of multiple sampling tubes 5 at the same time.

[0028] In this embodiment, the diameter of the feed hole 16 is set to be the same as the outer diameter of the sampling tube 5, and the distances between the centers of the multiple feed holes 16 and the centers of the corresponding sampling tubes 5 are set to be the same. When the positions of the multiple feed holes 16 are adjusted, it can be ensured that the multiple feed holes 16 are respectively connected to the opening parts of the corresponding sampling tubes 5.

[0029] In this embodiment, a limit plate 17 located above the connecting plate 14 is fixedly installed on the left outer wall of the vertical cylinder 1. The vertical spacing dimension between the limit plate 17 and the connecting plate 14 is set to be the same as the spacing between the center distance of the feed hole 16 and the center distance of the sampling cylinder 5. The limit plate 17 is used to block and limit the rising height of the connecting plate 14, and can ensure that when the limit plate 17 contacts the connecting plate 14, the multiple feed holes 16 are respectively aligned with the opening parts of the corresponding sampling cylinders 5.

[0030] In this embodiment, the diameter of the cone 2 decreases from top to bottom, the maximum diameter of the cone 2 is larger than the outer diameter of the vertical tube 1, the bottom of the baffle 15 contacts the top of the cone 2, and the cone 2 can block and limit the descending stroke of the baffle 15, so that the baffle 15 can block the openings of multiple sampling tubes 5 at the same time.

[0031] Through the above structure, the bulk material stratified sampling device provided by the utility model is convenient for stratified sampling of different depth positions of bulk materials at the same time when in use. The operation steps are simple and convenient, which saves sampling time and achieves the purpose of accurate sampling and efficient sampling. During the specific operation, both hands hold the T-shaped handle 4 and insert the insert cone 2 into the bulk material, and the vertical tube 1 and the baffle 15 are gradually inserted into the bulk material. When multiple sampling tubes 5 are inserted into the appropriate depth position in the bulk material, the electric telescopic rod 13 is controlled to retract and reset, and the output shaft end of the electric telescopic rod 13 drives the connecting plate 14 and the baffle 15 to gradually approach the limit The connecting plate 14 moves linearly in the direction of the limit plate 17. When the connecting plate 14 conflicts with the limit plate 17, the electric telescopic rod 13 stops running. At this time, the multiple feeding holes 16 on the baffle plate 15 are respectively aligned with the corresponding sampling tubes 5. The materials at different depths will flow into the corresponding sampling tubes 5 through the corresponding feeding holes 16. Then the motor 11 is controlled to run forward. The motor 11 drives the driving shaft 8 and the multiple active bevel gears 9 to rotate. The multiple active bevel gears 9 drive the corresponding driven bevel gears 10 to rotate. At this time, the multiple spiral feeding shafts 6 rotate at the same time, and then the rotation of the multiple spiral feeding shafts 6 can be used to feed the corresponding sampling tubes 5. The internal material is transported to a deeper part of the sampling tube 5, so that more material can be loaded into the sampling tube 5. After the sampling is completed, the motor 11 is stopped, and then the electric telescopic rod 13 is controlled to extend and run. The output shaft end of the electric telescopic rod 13 drives the connecting plate 14 and the baffle 15 to move linearly in the direction away from the limit plate 17. When the baffle 15 conflicts with the insert cone 2, the electric telescopic rod 13 is stopped. At this time, the baffle 15 blocks the openings of multiple sampling tubes 5, and the vertical tube 1 and the insert cone 2 can be extracted out of the bulk material. In the process of extraction, since the baffle 15 blocks the openings of multiple sampling tubes 5, other positions The material will not enter the multiple sampling tubes 5, thereby ensuring accurate sampling. When the vertical tube 1 and the insert cone 2 are pulled out, the vertical tube 1 is lifted horizontally and the multiple sampling tubes 5 are made to face vertically downward, and then the electric telescopic rod 13 is controlled to shrink and reset again, so that the multiple feeding holes 16 on the baffle 15 can be respectively aligned with the corresponding sampling tubes 5, and then the motor 11 is controlled to flip, so that the multiple spiral feeding shafts 6 can be controlled to rotate at the same time. The multiple spiral feeding shafts 6 can be used to discharge all the materials collected in the corresponding sampling tubes 5, thereby realizing the simultaneous stratified sampling of different depth positions of bulk materials, which has the advantage of efficient sampling.

Claims

1. A bulk material stratified sampling device, characterized in that: The invention comprises a vertical tube (1), an insert cone (2), a fixed cover tube (3), a T-shaped handle (4), a sampling tube (5), a spiral feed shaft (6), a driving assembly and a sealing assembly, wherein the insert cone (2) is fixedly mounted at the bottom end of the vertical tube (1), the top of the vertical tube (1) is an open structure, the fixed cover tube (3) is fixedly mounted at the top of the vertical tube (1), the T-shaped handle (4) is fixedly mounted at the top of the fixed cover tube (3), the number of the sampling tubes (5) is plural, the plural sampling tubes (5) are all fixedly mounted on the left side wall of the vertical tube (1) and are evenly distributed, and the plural sampling tubes (5) are arranged on a plurality of surfaces. The left side of each of the sampling tubes (5) is an open structure, the right sides of the plurality of sampling tubes (5) extend into the vertical tube (1), the number of the spiral feed shafts (6) is plural, the plurality of spiral feed shafts (6) are rotatably mounted in the corresponding sampling tubes (5), the right ends of the plurality of spiral feed shafts (6) extend into the vertical tube (1), the driving assembly is arranged on the vertical tube (1), the driving assembly is used to control the rotation of the plurality of spiral feed shafts (6), the sealing assembly is arranged on the left side of the vertical tube (1), the sealing assembly is used to block the left openings of the plurality of sampling tubes (5).

2. A bulk material stratified sampling device according to claim 1, characterized in that: The driving assembly comprises a shaft seat (7), a driving shaft (8), a plurality of active bevel gears (9), a plurality of driven bevel gears (10), a motor (11) and a storage battery (12); the shaft seat (7) is fixedly mounted on the bottom inner wall of the vertical cylinder (1); the bottom end of the driving shaft (8) is rotatably connected to the shaft seat (7); the plurality of active bevel gears (9) are fixedly sleeved on the driving shaft (8); the plurality of driven bevel gears (10) are respectively fixedly mounted on the right ends of the corresponding spiral feed shafts (6); the plurality of active bevel gears (9) are respectively meshed with the corresponding driven bevel gears (10); the motor (11) is fixedly mounted on the bottom inner wall of the fixed cover cylinder (3); the output shaft end of the motor (11) extends into the vertical cylinder (1) and is fixedly connected to the top end of the driving shaft (8); the storage battery (12) is fixedly mounted on the top inner wall of the fixed cover cylinder (3); the storage battery (12) is electrically connected to the motor (11).

3. A bulk material stratified sampling device according to claim 1, characterized in that: A maintenance opening is provided on the right inner wall of the fixed cover cylinder (3), and a maintenance door (18) is fixedly mounted on the right outer wall of the fixed cover cylinder (3) by means of screws, wherein the maintenance door (18) is adapted to the maintenance opening.

4. A bulk material stratified sampling device according to claim 2, characterized in that: The sealing assembly comprises an electric telescopic rod (13), a connecting plate (14) and a baffle (15); the electric telescopic rod (13) is fixedly mounted at the bottom of the fixed cover tube (3) and is located on the left side of the vertical tube (1); the electric telescopic rod (13) is electrically connected to the battery (12); the connecting plate (14) is fixedly mounted at the output shaft end of the electric telescopic rod (13); the baffle (15) is fixedly mounted at the bottom of the connecting plate (14) and is located on the left side of the sampling tube (5); the left side outer wall of the sampling tube (5) is in sliding sealing contact with the right side wall of the baffle (15); a plurality of feed holes (16) are provided on the baffle (15); and the plurality of feed holes (16) are respectively located directly below the corresponding sampling tubes (5).

5. A bulk material stratified sampling device according to claim 4, characterized in that: The width dimension of the baffle (15) is greater than the outer diameter dimension of the sampling tube (5).

6. A bulk material stratified sampling device according to claim 4, characterized in that: The diameter of the feed hole (16) is set to be the same as the outer diameter of the sampling tube (5), and the distances between the centers of the multiple feed holes (16) and the centers of the corresponding sampling tubes (5) are set to be the same.

7. A bulk material stratified sampling device according to claim 5, characterized in that: A limit plate (17) located above the connecting plate (14) is fixedly mounted on the left outer wall of the vertical cylinder (1), and the vertical spacing between the limit plate (17) and the connecting plate (14) is set to be the same as the spacing between the centers of the sampling cylinders (5) corresponding to the hole centers of the feed holes (16).

8. A bulk material stratified sampling device according to claim 4, characterized in that: The diameter of the insert cone (2) decreases from top to bottom, the maximum diameter of the insert cone (2) is greater than the outer diameter of the vertical cylinder (1), and the bottom of the baffle (15) contacts the top of the insert cone (2).

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