Portable manual powder sampler

Abstract

The utility model relates to the technical field of powder sampling, in particular to a portable manual powder sampler which comprises an outer barrel, a drill bit is fixedly mounted at the bottom of the outer barrel, an inner barrel and a storage barrel are coaxially and sequentially sleeved in the outer barrel, and a plurality of through holes for powder to pass through are formed in a barrel body of the outer barrel. The barrel body of the inner barrel is provided with a plurality of through holes in one-to-one correspondence with the through holes, the inner barrel rotates by a preset angle around the axis direction to enable the through holes and the through holes to be mutually communicated or staggered, the barrel body of the storage barrel is provided with a plurality of open grooves allowing powder to enter, and a plurality of partition plates are fixedly installed in the storage barrel. The device does not need to be driven by a motor, is convenient to carry, is manually operated in the whole process, is simple to operate, and avoids deviation of a single sampling result through multiple sampling detection, so that the accuracy of a sampling detection result is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder sampling, in particular to a portable manual powder sampler. Background Art

[0002] Powders refer to solid materials with particle sizes less than 0.1 mm. They are typically obtained by grinding, crushing, or chemically reacting hard materials into fine particles. Depending on the properties and intended use of the powder material, powders can be categorized into various types, including metal powders, ceramic powders, sludge, chemical powders, and mineral powders.

[0003] Before use, incoming powder materials must undergo acceptance testing in accordance with national standards. Only qualified materials can be used in construction projects. However, in existing technologies, most sampling processes rely on manual sampling. The sampling devices used in manual sampling are often single-shot sampling devices, meaning they are inserted into a powder pile, sampled, and then the entire device is withdrawn. This testing method has certain limitations. Specifically, the results produced by this method are haphazard. When the device is inserted into the powder pile from the top, the powder sample at the top falls into the target powder layer along with the device. If only single-shot sampling is used for testing, the top powder sample, which falls along with the device, is likely to be mixed into the sampled sample, resulting in significant deviations in the sampling results. To improve the accuracy of the test results, multiple sampling of the sampled powder layer should be performed. Comprehensive testing and evaluation of multiple samples from the same batch can effectively reduce the haphazardness of single-shot sampling results and improve the accuracy of the test results. Therefore, a technical solution is urgently needed to address this issue. Summary of the Invention

[0004] The purpose of the utility model is to provide a portable manual powder sampler to solve the problems in the prior art.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] A portable manual powder sampler comprises an outer cylinder, a drill bit is fixedly mounted on the bottom of the outer cylinder, an inner cylinder and a storage cylinder are coaxially sleeved in sequence inside the outer cylinder, the barrel of the outer cylinder is provided with a plurality of through holes for powder to pass through, and the barrel of the inner cylinder is provided with a plurality of through holes corresponding one to one to the through holes, the inner cylinder is rotated around the axis at a preset angle so that the through holes are connected or misaligned with the through holes, the barrel of the storage cylinder is provided with a plurality of slots for powder to enter, and a plurality of partitions are fixedly mounted inside the storage cylinder.

[0007] Based on a preferred solution provided by a portable manual powder sampler, the outer sleeve of the storage cylinder is used to seal the slotted seal, the body of the seal is provided with a plurality of avoidance grooves corresponding one to one to the slotted slots, and the seal is rotated around the axis at a preset angle so that the avoidance grooves and the slotted slots are connected to each other or staggered.

[0008] Based on a preferred solution provided by a portable manual powder sampler, the outer cylinder and the top of the inner cylinder are jointly equipped with a same fixing ring for locking the rotation angle of the inner cylinder, the top of the inner cylinder is provided with a plurality of notches for accommodating the fixing ring, and the top of the outer cylinder is provided with a plurality of avoidance openings corresponding one-to-one to the notches.

[0009] Based on a preferred solution provided by a portable manual powder sampler, the storage tube and the top of the sealing tube are jointly equipped with a positioning rod for locking the rotation angle of the storage tube. The top of the storage tube is provided with a plurality of sockets for accommodating the positioning rods, and the top of the sealing tube is fixedly equipped with a plurality of receiving holes corresponding one to one to the sockets.

[0010] Based on a preferred solution provided by a portable manual powder sampler, a plurality of limiting strips are fixedly installed on the inner wall of the inner cylinder, and a slot for accommodating the limiting strips is provided on the outer wall of the sealing cylinder.

[0011] Based on a preferred solution provided by a portable manual powder sampler, a plurality of discs for facilitating adjustment of the rotation angle by leveraging force are fixedly mounted on the top of the inner cylinder.

[0012] Based on a preferred solution provided by a portable manual powder sampler, an exhaust thread is provided on the surface of the drill bit.

[0013] Compared with the existing technology, the present invention has the following beneficial effects: the device does not need to be driven by a motor, is easy to carry, can be operated manually throughout the process, and is simple to operate. Through multiple sampling tests, the bias of single sampling results is avoided, thereby effectively improving the accuracy of the sampling test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2This is a schematic diagram of the installation of the present invention without the outer cylinder and the drill bit;

[0017] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0018] Figure 4 This is a schematic diagram of the installation structure of the storage cylinder and the sealing cylinder in the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the storage cylinder in the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the outer cylinder in the utility model;

[0021] Figure 7 This is an exploded view of the installation of the inner cylinder and the fixing ring in the utility model;

[0022] Figure 8 for Figure 7 A magnified schematic diagram of B.

[0023] In the figure: 1. Outer tube; 11. Through hole; 12. Avoidance; 2. Drill bit; 3. Inner tube; 31. Perforation; 32. Notch; 33. Limiting strip; 34. Disc; 4. Storage tube; 41. Slot; 42. Partition; 43. Insertion hole; 5. Sealing tube; 51. Avoidance groove; 52. Receiving hole; 53. Slot; 6. Fixing ring; 7. Positioning rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The following first describes the concepts involved in this application with reference to the accompanying drawings. It should be noted that the following description of each concept is intended only to make the content of this application easier to understand and does not limit the scope of protection of this application. At the same time, the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The following detailed description of this application will be made with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] Example

[0027] like Figures 1 to 8As shown, the utility model provides a portable manual powder sampler, comprising an outer cylinder 1, a drill bit 2 is fixedly installed at the bottom of the outer cylinder 1, an inner cylinder 3 and a storage cylinder 4 are coaxially sleeved in sequence inside the outer cylinder 1, the barrel of the outer cylinder 1 is provided with a plurality of through holes 11 for powder to pass through, and the barrel of the inner cylinder 3 is provided with a plurality of through holes 31 corresponding one to one with the through holes 11, the inner cylinder 3 is rotated around the axis direction at a preset angle so that the through holes 31 and the through holes 11 are connected to each other or staggered, the barrel body of the storage cylinder 4 is provided with a plurality of slots 41 for powder to enter, and a plurality of partitions 42 are fixedly installed in the storage cylinder 4, and the plurality of partitions 42 are arranged in sequence along the axial direction of the storage cylinder 4.

[0028] As a further illustration of the embodiments of the present invention, powder materials need to be inspected and accepted according to national standards before use. They can only be used in construction projects after passing the inspection. However, most sampling processes in the existing technology adopt manual sampling for inspection. The sampling equipment used in manual sampling is mostly single sampling, that is, the sampling is taken after being inserted into the powder pile and then the entire device is pulled out. This detection method has certain limitations. Specifically, the results detected by this detection method are accidental. When the device is inserted into the powder pile from the top, the powder pile sample at the top will sink into the target powder pile layer along with the insertion of the device. If only a single sampling method is used for detection, it is very likely that the top powder pile sample that sinks along with the device will be mixed into the sampled sample, resulting in a large deviation in the sampling result. In order to improve the accuracy of the detection result, it should be ensured that the sampled powder pile layer is sampled multiple times. The detection result obtained after comprehensive detection and evaluation of the multiple samples of the same batch can effectively reduce the accidental nature of the single sampling result and improve the accuracy of the detection result. Therefore, in In this embodiment, when the device is used for testing, the outer cylinder 1 is held in the vertical position, and the drill bit 2 is inserted into the powder pile with the drill bit 2 facing downward until it is inserted into the target layer in the powder pile. The inner cylinder 3 is rotated to make the perforation 31 and the through hole 11 communicate with each other, so that the powder in the target layer can enter the multiple slots 41 in the storage cylinder 4. After a certain period of collection, the inner cylinder 3 is rotated again to make the perforation 31 and the through hole 11 misaligned and restored to the initial state, thereby forming a mutually closed environment between the outer cylinder 1 and the inner cylinder 3, so that the powder cannot enter. Into the storage cylinder 4, at this time, the storage cylinder 4 is directly lifted up and the powder in the storage cylinder 4 is collected separately, and then the storage cylinder 4 is reinserted into the inner cylinder 3 to reset, and the above process is repeated to complete multiple samplings. After removing the first few sampling samples, the results of the subsequent multiple samplings are analyzed to obtain relatively accurate test results. This device does not need to be driven by a motor, is easy to carry, and is manually operated throughout the process. It is simple to operate and avoids the bias of single sampling results through multiple sampling tests, thereby effectively improving the accuracy of the sampling test results.

[0029] Based on a preferred solution provided by a portable manual powder sampler, the outer part of the storage tube 4 is connected to a sealing tube 5 for closing the slot 41. The barrel of the sealing tube 5 is provided with a plurality of avoidance grooves 51 corresponding to the slots 41 one by one, and the sealing tube is rotated around the axis at a preset angle so that the avoidance grooves 51 and the slots 41 are connected to each other or staggered.

[0030] Specifically, in this embodiment, a sealing tube 5 is sleeved on the outside of the storage tube 4 for preventing the powder from falling off. The sealing tube 5 is rotated to adjust the connection or closed state of the slot 41 and the avoidance groove 51. When enough powder is stored in the storage tube 4 and needs to be lifted up, the powder in the slot 41 will be scattered due to shaking or tilting during the rising process. Therefore, a sealing tube 5 is sleeved on the outside of the storage tube 4, which can be rotated to close the storage tube 4, so that the powder in the storage tube 4 can be effectively preserved and will not slip.

[0031] Based on a preferred solution provided by a portable manual powder sampler, the outer cylinder 1 and the top of the inner cylinder 3 are jointly installed with a same fixing ring 6 for locking the rotation angle of the inner cylinder 3. The top of the inner cylinder 3 is provided with a plurality of notches 32 for accommodating the fixing ring 6, and the top of the outer cylinder 1 is provided with a plurality of avoidance openings 12 for corresponding one-to-one with the notches 32.

[0032] Specifically, in this embodiment, since the outer cylinder 1 and the inner cylinder 3 are rotatably connected to each other, and the barrel bodies of the inner cylinder 3 and the outer cylinder 1 are provided with holes, and such holes are a key means in the material taking process, in order to prevent the inner cylinder 3 from rotating arbitrarily during the deepening of the outer cylinder 1 and causing the powder to penetrate into the storage cylinder 4 in advance, the inner cylinder 3 is correspondingly restricted when the inner cylinder 3 does not need to rotate, so a fixing ring 6 is provided at the top of the outer barrel and the inner cylinder 3 for locking the connection state of the outer cylinder 1 and the inner cylinder 3, and a plurality of blocks for inserting into the notch 32 and deepening the avoidance port 12 are provided at the bottom of the fixing ring 6. After the inner cylinder 3 completes the rotation, the plurality of blocks under the fixing ring 6 are filled into the notch 32 and the avoidance port 12 one by one, so that the inner cylinder 3 cannot rotate, thereby maintaining the connectivity between the inner cylinder 3 and the outer cylinder 1.

[0033] Based on a preferred solution provided by a portable manual powder sampler, the storage tube 4 and the top of the sealing tube 5 are jointly equipped with a positioning rod 7 for locking the rotation angle of the storage tube 4. The top of the storage tube 4 is provided with a plurality of sockets 43 for accommodating the positioning rod 7, and the top of the sealing tube 5 is fixedly equipped with a plurality of receiving holes 52 corresponding one to one with the sockets 43.

[0034] Specifically, in this embodiment, referring to the necessity of restricting the rotational connection between the outer tube 1 and the inner tube 3, similarly, if the sealing tube 5 is selected to seal the storage tube 4, it is necessary to lock the rotational state between the storage tube 4 and the sealing tube 5 through the positioning rod 7 or other devices. When the sealing tube 5 is rotated by a preset angle, the insertion holes 43 and the receiving holes 52 are connected one by one. At this time, the positioning rod 7 is inserted along one of the receiving holes 52 and deeply penetrates the corresponding two insertion holes 43 and then passes through the other receiving hole 52 to complete the rotation locking between the storage tube 4 and the sealing tube 5.

[0035] Based on a preferred solution provided by a portable manual powder sampler, a plurality of limiting strips 33 are fixedly mounted on the inner wall of the inner cylinder 3 , and a slot 53 for accommodating the limiting strips 33 is provided on the outer wall of the sealing cylinder 5 .

[0036] Specifically, in this embodiment, since the inner cylinder 3 and the storage cylinder 4 are also rotationally connected, in order to prevent the storage cylinder 4 from being misaligned with the through-hole 31 on the inner cylinder 3 during rotation, which would prevent the powder from entering the slot 41, the installation between the inner cylinder 3 and the storage cylinder 4 is restricted, so that a rotation restriction is formed between the sealing cylinder 5 and the inner cylinder 3, and the sealing cylinder 5 and the storage cylinder 4 also have the above-mentioned rotation restriction of the positioning rod 7, so that the inner cylinder 3 will not affect the intercommunication between the through-hole 31 and the slot 41 when rotating.

[0037] Based on a preferred solution provided by a portable manual powder sampler, a plurality of discs 34 for adjusting the rotation angle are fixedly mounted on the top of the inner cylinder 3 .

[0038] Specifically, in this embodiment, the rotation angle of the inner cylinder 3 can be adjusted by the disc 34. Similarly, adding a corresponding extension component to the top of the storage cylinder 4 or the sealing cylinder 5 can also play the same role in facilitating the adjustment of the rotation angle.

[0039] Based on a preferred solution provided by a portable manual powder sampler, an exhaust thread is provided on the surface of the drill bit 2 .

[0040] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any person skilled in the art may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0041] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A portable manual powder sampler, comprising an outer barrel (1), characterized in that: A drill bit (2) is fixedly installed at the bottom of the outer cylinder (1); an inner cylinder (3) is coaxially sleeved inside the outer cylinder (1); a storage cylinder (4) is coaxially sleeved inside the inner cylinder (3); a plurality of through holes (11) for powder to pass through are provided on the barrel of the outer cylinder (1); a plurality of through holes (31) corresponding to the through holes (11) are provided on the barrel of the inner cylinder (3); the inner cylinder (3) is rotated at a preset angle around the axis so that the through holes (31) and the through holes (11) are connected to or staggered with each other; a plurality of slots (41) for powder to enter are provided on the barrel of the storage cylinder (4); a plurality of partitions (42) are fixedly installed inside the storage cylinder (4), and the plurality of partitions (42) are arranged in sequence along the axial direction of the storage cylinder (4).

2. A portable manual powder sampler according to claim 1, characterized in that: The outer portion of the storage cylinder (4) is sleeved with a sealing cylinder (5) for sealing the slot (41); a barrel of the sealing cylinder (5) is provided with a plurality of avoidance grooves (51) corresponding to the slots (41) one by one; and the sealing cylinder (5) is rotated around an axis by a preset angle so that the avoidance grooves (51) and the slots (41) are communicated with or dislocated with each other.

3. A portable manual powder sampler according to claim 1, characterized in that: The outer cylinder (1) and the inner cylinder (3) are both provided with a fixed ring (6) on the top for locking the rotation angle of the inner cylinder (3); the inner cylinder (3) is provided with a plurality of notches (32) on the top for accommodating the fixed ring (6); and the outer cylinder (1) is provided with a plurality of avoidance openings (12) on the top for corresponding one-to-one with the notches (32).

4. A portable manual powder sampler according to claim 2, characterized in that: The storage cylinder (4) and the sealing cylinder (5) are both provided with a same positioning rod (7) for locking the rotation angle of the storage cylinder (4). The top of the storage cylinder (4) is provided with a plurality of insertion holes (43) for accommodating the positioning rod (7). The top of the sealing cylinder (5) is fixedly provided with a plurality of receiving holes (52) corresponding one to one with the insertion holes (43).

5. The portable manual powder sampler according to claim 2, characterized in that: A plurality of limiting strips (33) are fixedly mounted on the inner wall of the inner cylinder (3), and a clamping groove (53) for accommodating the limiting strips (33) is provided on the outer wall of the sealing cylinder (5).

6. The portable manual powder sampler according to claim 1, characterized in that: A plurality of discs (34) for adjusting the rotation angle of the inner cylinder (3) are fixedly mounted on the top of the inner cylinder (3).

7. The portable manual powder sampler according to claim 1, characterized in that: An exhaust thread is provided on the surface of the drill bit (2).

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