Solid particle sampling device

Abstract

The utility model discloses a solid particle sampling device and relates to the technical field of sampling. The sampling device comprises a sampling barrel, a driving assembly, a disc and a plurality of baffles, the sampling barrel is provided with an opening and a containing space connected with the opening, a plurality of sampling holes are formed in the side wall of the sampling barrel in the axial direction of the sampling barrel, the baffles correspond to the sampling holes in a one-to-one mode, and a plurality of collecting grooves and a plurality of collecting holes are formed in the disc. A plurality of collecting holes are formed in the side wall of the disc and communicated with the collecting grooves, the collecting grooves correspond to the collecting holes one to one, the collecting grooves and the collecting holes are evenly distributed in the circumferential direction of the disc, and the bottom faces of the collecting grooves are obliquely arranged in the axial direction of the sampling barrel from the ends away from the axis of the disc to the ends close to the axis of the disc. According to the utility model, the disc is controlled to rotate and axially move through the driving component, so that the sampling holes with different heights are sequentially aligned with different collecting grooves, the classification and layered sampling of samples are realized, and the pollution caused by manual contact is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of sampling technology, and in particular to a sampling device for solid particles. Background Technology

[0002] Traditional samplers typically only allow for single-point sampling, making it difficult to comprehensively reflect the distribution characteristics of particles at different depths or locations. Furthermore, they cannot accurately classify samples from different locations after sampling. Simultaneously, the sampling process requires frequent manual contact, which can easily lead to sample leakage and contamination, affecting not only sample purity and detection accuracy but also compromising the safety of testing personnel. Utility Model Content

[0003] In view of this, the present invention provides a sampling device for solid particles, which solves the technical problem that it is impossible to accurately classify samples from different locations, and that frequent manual contact during the sampling process causes sample contamination and threatens personnel safety.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A sampling device for solid particles includes a sampling cylinder, a driving assembly, a disk, and multiple baffles. The sampling cylinder has an opening and a receiving space connected to the opening. Multiple sampling holes are formed along the axial direction of the side wall of the sampling cylinder. One end of each baffle is rotatably connected to the inner wall of the sampling cylinder via a fixed shaft and is arranged corresponding to each of the sampling holes to allow the sampling holes to communicate with the receiving space. The disk is provided with multiple collection grooves and multiple collection holes. Multiple collection holes are formed on the side wall of the disk. The collection holes are connected to the collection grooves. The multiple collection grooves correspond one-to-one with the multiple collection holes. The collection grooves and collection holes are evenly distributed along the circumference of the disk. The number of sampling holes is the same as the number of collection grooves. The bottom surface of the collection groove is inclined along the axial direction of the sampling cylinder from the end away from the axis of the disk to the end close to the axis of the disk, so that the sample can move in the direction of the axis of the disk.

[0006] Both the disk and the driving assembly are housed in the accommodating space. The driving assembly is connected to the disk and is used to drive the disk to rotate and move along the axial direction of the sampling cylinder. As the disk rotates and approaches the opening of the sampling cylinder, each of the collection grooves can be connected to each of the sampling holes one by one to take samples through the sampling holes.

[0007] In some embodiments of the solid particle sampling device, the driving assembly includes a motor and an electric push rod. The disk is connected to the output shaft of the motor, and the motor is used to drive the disk to rotate. The output end of the electric push rod is connected to the motor and is used to drive the motor and the disk to move axially along the sampling cylinder.

[0008] In some embodiments of the solid particle sampling device, the diameter of the sampling orifice gradually increases from the distance away from the accommodating space to the distance closer to the accommodating space.

[0009] In some embodiments of the solid particle sampling device, the sampling device further includes a first folding cylinder and a second folding cylinder. One end of the first folding cylinder is fixedly connected to the opening position, and the other end is sleeved on the disk. One end of the second folding cylinder is fixed to the bottom surface of the disk, and the other end is fixed to the sampling cylinder at the end away from the opening.

[0010] Friction pads are provided on the outer wall of the disc. The friction force of the disc is greater than that of the folding cylinder. This allows the disc to extend into the folded first folding cylinder after it is folded when it moves close to the opening. During the movement of the disc close to the opening, the collection hole can be aligned with the sampling hole so that the baffle falls into the collection hole and the sample is guided along the baffle into the collection groove.

[0011] The disk moves toward the opening, stretching the second folding cylinder. The baffle abuts against the second folding cylinder until the upper surface of the disk and the upper surface of the first folding cylinder are on the same plane.

[0012] In some embodiments of the solid particle sampling device, the switch of the drive assembly is mounted on the outer wall of the sampling cylinder near the opening.

[0013] In some embodiments of the solid particle sampling device, the switch includes a housing and a gear lever. The gear lever is rotatably disposed on the surface of the housing. The gear lever has a first stop point, a second stop point, and a third stop point along its rotation path. When the gear lever is located at the first stop point, the drive assembly rotates forward to drive the disk toward the opening. When the gear lever is located at the second stop point, the drive assembly stops. When the gear lever is located at the third stop point, the drive assembly rotates in reverse to drive the disk away from the opening.

[0014] Implementing the embodiments of this utility model will have at least the following beneficial effects:

[0015] The above-mentioned solid particle sampling device, when sampling begins, drives the disk to rotate and move along the axial direction of the sampling cylinder. The rotating disk and the collection grooves near the opening of the sampling cylinder can be connected to each sampling hole in a one-to-one correspondence, realizing the classification and stratified sampling of the sample, effectively avoiding contamination caused by manual contact. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall schematic diagram of a solid particle sampling device in one embodiment;

[0018] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0019] Figure 3 This is a top view of a solid particle sampling device in one embodiment;

[0020] Figure 4 This is a partial schematic diagram of a solid particle sampling device in one embodiment.

[0021] in:

[0022] 1. Sampling tube; 11. Opening; 12. Receptacle space; 13. Sampling hole;

[0023] 2. Drive assembly; 21. Motor; 22. Electric actuator;

[0024] 3. Disc; 31. Collection groove; 32. Collection hole; 33. Friction plate;

[0025] 4. Baffle;

[0026] 5. First folding tube;

[0027] 6. Second folding tube;

[0028] 7. Switch; 71. Housing; 72. Gear lever. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] It should be emphasized and explained that the various connection methods involved in this utility model can be arbitrary unless otherwise specified. For example, fixed connection can be achieved by bolts and nuts for detachable fixing, welding or integral molding, etc. Sliding connection can be achieved by groove-like or guide rail-like structures of various shapes, and rotating connection can be achieved by hinges, shafts, etc. Any existing method that can achieve the corresponding connection relationship is acceptable.

[0033] The following is combined with Figure 1-4 The present invention provides a further explanation of a solid particle sampling device.

[0034] A sampling device for solid particles includes a sampling cylinder 1, a driving assembly 2, a disc 3, and multiple baffles 4. The sampling cylinder 1 has an opening 11 and a receiving space 12 connected to the opening 11. Multiple sampling holes 13 are formed along the axial direction on the side wall of the sampling cylinder 1. One end of each baffle 4 is rotatably connected to the inner wall of the sampling cylinder 1 via a fixed shaft and is arranged corresponding to each sampling hole 13, so that the sampling holes 13 can be connected to or disconnected from the receiving space 12. Multiple collection grooves 3 are provided on the disc 3. A sampling cylinder 1 has multiple collection holes 32. Multiple collection holes 32 are formed on the sidewall of the disc 3, and each collection hole 32 is connected to a collection groove 31. Each collection groove 31 corresponds to one of the collection holes 32. The collection grooves 31 and collection holes 32 are evenly distributed around the circumference of the disc 3. The number of sampling holes 13 is the same as the number of collection grooves 31. The bottom surface of the collection groove 31 is inclined along the axial direction of the sampling cylinder 1 from the end furthest from the axis of the disc 3 to the end closest to the axis of the disc 3, so that the sample can move in the direction of the axis of the disc 3. The disc 3 and the driving assembly 2 are both housed in the receiving space 12. The driving assembly 2 is connected to the disc 3 and is used to drive the disc 3 to rotate and move along the axial direction of the sampling cylinder 1. As the disc 3 rotates and approaches the opening of the sampling cylinder 1, each collection groove 31 can communicate with each sampling hole 13 in a corresponding manner, so that a sample can be taken through the sampling hole 13.

[0035] In this embodiment, the drive assembly 2 is installed at the bottom of the sampling cylinder 1 and electrically connected to the disk 3. When sampling is required, the drive assembly 2 is activated, causing the disk 3 to move axially along the sampling cylinder 1 towards the opening 11 and rotate simultaneously. As the disk 3 rotates, the collection groove 31 and the sampling hole 13 are connected one-to-one, the baffle 4 opens, and solid particles enter the collection groove 31 through the sampling hole 13. The sample in the collection groove 31 slides towards the axis of the disk 3 under the action of the inclined bottom surface. After sampling is completed, the drive assembly 2 drives the disk 3 to move in the opposite direction to the initial position, the baffle 4 resets, and the sampling hole 13 is closed, ready for the next sampling. By controlling the rotation and axial movement of the disk 3 through the drive assembly 2, the sampling holes 13 at different heights are aligned with the different collection grooves 31 in sequence, realizing the classification and stratified sampling of samples, effectively avoiding contamination caused by manual contact.

[0036] In one embodiment, the drive assembly 2 includes a motor 21 and an electric push rod 22. The disk 3 is connected to the output shaft of the motor 21. The motor 21 is used to drive the disk 3 to rotate. The output end of the electric push rod 22 is connected to the motor 21 and is used to drive the motor 21 and the disk 3 to move along the axial direction of the sampling cylinder 1.

[0037] In this embodiment, the motor 21 drives the disk 3 to rotate, and the electric push rod 22 pushes the disk 3 to rise, so that the disk 3 can rotate to rise or rotate to fall, thereby realizing the classification and stratified sampling of samples.

[0038] In one embodiment, the diameter of the sampling orifice 13 gradually increases from the distance from the receiving space 12 to the distance from the receiving space 12. The gradually increasing diameter of the sampling orifice 13 allows the sample to slide in from the orifice and guide the sample into the collection tank 31.

[0039] In one embodiment, the sampling device further includes a first folding cylinder 5 and a second folding cylinder 6. One end of the first folding cylinder 5 is fixedly connected to the opening 11, and the other end is sleeved on the disc 3. One end of the second folding cylinder 6 is fixed to the bottom surface of the disc 3, and the other end is fixed to the end of the sampling cylinder 1 away from the opening 11. Friction plates 33 are provided on the outer wall of the disc 3. The friction force of the disc 3 is greater than that of the folding cylinder, so that when the disc 3 moves closer to the opening 11, the disc 3 can be folded by the first folding cylinder 5 and then inserted into the folded first folding cylinder 5. During the movement of the disc 3 closer to the opening 11, the collection hole 32 can be aligned with the sampling hole 13, so that the baffle 4 falls into the collection hole 32, and the sample is guided along the baffle 4 into the collection groove 31. The movement of the disc 3 toward the opening 11 stretches the second folding cylinder 6, and the baffle 4 abuts against the second folding cylinder 6 until the upper surface of the disc 3 and the upper surface of the first folding cylinder 5 are on the same plane.

[0040] In this embodiment, the disk 3 rises to the first set of sampling holes 13, the baffle 4 falls into the collection hole 32, and the first set of collection grooves 31 is connected to the first set of sampling holes 13, and the sample falls into the first set of collection grooves 31. The disk 3 continues to rotate and rise to the second set of sampling holes 13. At this time, the baffle 4 of the first set of sampling holes 13 abuts against the second folding cylinder 6, and the disk 3 causes the first folding cylinder 5 to retract. The above process is repeated until the first few cylinders of the first folding cylinder 5 have all retracted. Since the friction force of the friction plate 33 is greater than the friction force of the rest of the first folding cylinder 5, the cylinder connected to the disk 3 finally folds and retracts, so that the disk 3 is finally flush with the opening 11. This achieves sample classification and sampling without manual contact, avoiding sample contamination.

[0041] In one embodiment, the switch 7 of the drive assembly 2 is installed on the outer wall of the sampling cylinder 1 near the opening 11. In this embodiment, by placing the switch 7 near the opening 11, it is convenient for testers to operate directly, thereby avoiding contact with the sample and preventing contamination, and ensuring personnel safety.

[0042] In one specific embodiment, the switch 7 includes a housing 71 and a gear lever 72. The gear lever 72 is rotatably disposed on the surface of the housing 71. The gear lever 72 has a first stop point, a second stop point and a third stop point along its rotation path. When the gear lever 72 is at the first stop point, the drive assembly 2 rotates forward to drive the disk 3 to move toward the opening 11. When the gear lever 72 is at the second stop point, the drive assembly 2 stops. When the gear lever 72 is at the third stop point, the drive assembly 2 rotates in reverse to drive the disk 3 away from the opening 11.

[0043] In this embodiment, it can be understood that the three stopping points correspond to three states of the drive component 2: forward / reverse rotation and shutdown. It should also be noted that after use, the sampling device of this invention needs to be inverted so that the baffle 4 hangs down under gravity, blocking the sampling hole 13. Then, the switch 7 is moved to the third stopping point, and the drive component 2 moves away from the opening 11. The switch 7 is designed with multi-position control via the gear lever 72 to achieve forward / reverse rotation and shutdown of the disc 3, making operation simple and efficient.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sampling device for solid particles, characterized in that, The sampling device includes a sampling cylinder, a driving assembly, a disc, and multiple baffles. The sampling cylinder has an opening and a receiving space connected to the opening. Multiple sampling holes are formed along the axial direction on the side wall of the sampling cylinder. One end of each of the multiple baffles is rotatably connected to the inner wall of the sampling cylinder via a fixed shaft and is arranged in a one-to-one correspondence with each of the sampling holes, so that the sampling holes can be connected to or disconnected from the receiving space. The disc is provided with multiple collection grooves and multiple collection holes. Multiple collection holes are formed on the side wall of the disc. The collection holes are connected to the collection grooves. The multiple collection grooves correspond one-to-one with the multiple collection holes. The collection grooves and collection holes are evenly distributed along the circumference of the disc. The number of sampling holes is the same as the number of collection grooves. The bottom surface of the collection groove is inclined along the axial direction of the sampling cylinder from the end away from the axis of the disc to the end close to the axis of the disc, so that the sample can move in the direction of the axis of the disc. Both the disk and the driving assembly are housed in the accommodating space. The driving assembly is connected to the disk and is used to drive the disk to rotate and move along the axial direction of the sampling cylinder. As the disk rotates and approaches the opening of the sampling cylinder, each of the collection grooves can be connected to each of the sampling holes one by one to take samples through the sampling holes.

2. The solid particle sampling device as described in claim 1, characterized in that, The drive assembly includes a motor and an electric push rod. The disk is connected to the output shaft of the motor, and the motor is used to drive the disk to rotate. The output end of the electric push rod is connected to the motor and is used to drive the motor and the disk to move along the axial direction of the sampling cylinder.

3. The solid particle sampling device as described in claim 2, characterized in that, The diameter of the sampling hole gradually increases from the distance away from the accommodating space to the distance closer to the accommodating space.

4. The solid particle sampling device as described in claim 2, characterized in that, The sampling device further includes a first folding tube and a second folding tube. One end of the first folding tube is fixedly connected to the opening position, and the other end is sleeved on the disk. One end of the second folding tube is fixed to the bottom surface of the disk, and the other end is fixed to the sampling tube at the end away from the opening. Friction pads are provided on the outer wall of the disc. The friction force of the disc is greater than that of the folding cylinder. This allows the disc to extend into the folded first folding cylinder after it is folded when it moves close to the opening. During the movement of the disc close to the opening, the collection hole can be aligned with the sampling hole so that the baffle falls into the collection hole and the sample is guided along the baffle into the collection groove. The disk moves toward the opening, stretching the second folding cylinder. The baffle abuts against the second folding cylinder until the upper surface of the disk and the upper surface of the first folding cylinder are on the same plane.

5. The solid particle sampling device as described in claim 1, characterized in that, The switch of the drive assembly is installed on the outer wall of the sampling cylinder near the opening.

6. The solid particle sampling device as described in claim 5, characterized in that, The switch includes a housing and a gear lever. The gear lever is rotatably disposed on the surface of the housing. The gear lever has a first stop point, a second stop point, and a third stop point along its rotation path. When the gear lever is located at the first stop point, the drive assembly rotates forward to drive the disk toward the opening. When the gear lever is located at the second stop point, the drive assembly stops. When the gear lever is located at the third stop point, the drive assembly rotates in reverse to drive the disk away from the opening.

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