CN220251480U - Height-adjustable airtight sample cylinder - Google Patents
Height-adjustable airtight sample cylinder Download PDFInfo
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- CN220251480U CN220251480U CN202321006115.2U CN202321006115U CN220251480U CN 220251480 U CN220251480 U CN 220251480U CN 202321006115 U CN202321006115 U CN 202321006115U CN 220251480 U CN220251480 U CN 220251480U
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- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000010419 fine particle Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
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Abstract
The utility model discloses a height-adjustable airtight sample tube, which comprises a basic sample tube, an heightening tube body, a heavy hammer and a sample tube cover, wherein the heightening tube body is arranged on the basic sample tube; the base sample tube consists of a sample tube body, a base, a handle, a snap lock and a sealing ring, wherein the handles are arranged on two sides of the opening of the base sample tube body, and the base is welded with the sample tube body; the heightening cylinder body is provided with a welded buckling lock at the cylinder opening of the heightening cylinder body, the heightening cylinder body is connected with the cylinder opening of the sample cylinder body through the buckling lock, and a sealing ring is arranged at the joint; the sample cylinder cover is connected with the sample cylinder main body cylinder opening or the heightening cylinder body cylinder opening through a lock hook welded at the sample cylinder main body cylinder opening or the heightening cylinder body cylinder opening, and a sealing ring is arranged at the connecting position; the inner walls of the basic sample cylinder and the heightening cylinder are provided with scale marks along the axial direction. The method can effectively avoid the harm of fine particles escaping to the health of test personnel and the influence on test results, and can facilitate the measurement and calculation of the sample volume after the test is finished.
Description
Technical Field
The utility model belongs to the technical field of test equipment, and particularly relates to a height-adjustable airtight sample cylinder.
Background
At present, the problem of measuring coarse-grained soil dry density at home and abroad is mainly analyzed and researched by two means of indoor test and field test. The vibration method in the indoor test is widely used for measuring the dry density test due to the advantages of simple principle, economy, convenience, high test accuracy, simplicity in operation and the like. However, as the conventional vibration method is used for measuring the dry density test, the sample cylinder opening is opened, the overall tightness is poor after the heavy hammer is placed in the sample cylinder, the material is easy to fly when the coarse-grained soil sample with certain grading is measured, the material loss is caused, and the small particle size easily flies into the air when the vibration is carried out, so that the environmental pollution of the test is caused, and the health and the safety of test personnel are threatened; in addition, the method is not flexible in practical use, and the volume of a low-density sample in the test exceeds the volume of a sample cylinder after the sample is filled according to a standard regulation method, so that the standard regulation quality cannot be achieved; and after the test is finished, the distance from the surface of the sample in the barrel to the barrel opening is required to be measured, so that the volume of soil in the barrel is converted, the operation is inconvenient, and errors are easy to generate. In recent years, some new devices and new methods have been proposed, which have problems that the cost of the dry density test by the vibration method is increased but the applicability is lowered.
Disclosure of Invention
The utility model aims to solve the technical problems that the current conventional indoor vibrating table method is difficult to measure the maximum and minimum dry density sample loading, the sample loading quality of a large aperture ratio sample cannot reach the standard and specified quality, the material loss, the test environment is polluted and the like, and provides a high-adjustable airtight sample cylinder.
In order to achieve the above task, the present utility model adopts the following technical solutions:
the utility model provides a high adjustable airtight sample section of thick bamboo, includes basic sample section of thick bamboo, sample barrel head, base, weight, its characterized in that still includes and increases the barrel, wherein:
the basic sample cylinder comprises a sample cylinder body, wherein the sample cylinder body is a revolution body, and the axis of the sample cylinder body is perpendicular to the ground; the opening Zhou Xiangyou of the sample cylinder body is provided with first connecting bulges, and uniformly distributed snap locks are arranged on the sample cylinder body; handles are arranged on two sides of a cylinder opening of the sample cylinder body, and the handles are connected with the sample cylinder body in a welding mode;
the heightening cylinder body is also a revolution body and has the same diameter as the cylinder body of the sample cylinder, the axis of the revolution body coincides with the axis of the revolution body of the cylinder body of the sample cylinder, one end of the heightening cylinder body is circumferentially provided with a cylinder body connecting groove matched with the first connecting bulge at the mouth part of the cylinder body of the sample cylinder, and a sealing ring is arranged in the cylinder body connecting groove; the other end Zhou Xiangyou is a second connecting projection; the upper end and the lower end of the heightening cylinder body are provided with hasp lock hooks matched with the hasp lock of the sample cylinder body and the same hasp lock, the two sides of the cylinder opening of the heightening cylinder body are also provided with handles, and the handles are connected with the heightening cylinder body in a welding mode;
the sample cylinder cover is also a revolving body, the diameters of the revolving body and the sample cylinder body are the same as those of the heightening cylinder body, the axes of the revolving body are coincident, a cylinder cover connecting groove matched with a first connecting bulge and a second connecting bulge of the sample cylinder body and the heightening cylinder body is formed in the sample cylinder cover, a sealing ring is arranged in the cylinder cover connecting groove, a hasp locking hook matched with a hasp lock of the basic sample cylinder body and the heightening cylinder body is also formed in the sample cylinder cover, handles are arranged on two sides of the sample cylinder cover, and the handles are connected with the sample cylinder cover in a welding mode;
the heavy hammer is a solid columnar body, and the diameter of the outer wall of the heavy hammer is the same as the inner diameters of the basic sample cylinder and the heightening cylinder; a weight handle is arranged above the weight;
the base is a solid disc with the diameter larger than that of the cylinder body of the sample cylinder, the axis of the solid disc is overlapped with the axis of the revolving body of the cylinder body of the sample cylinder, and the base of the sample cylinder is welded with the cylinder body of the sample cylinder;
at least one heightened cylinder body is arranged between the basic sample cylinder and the sample cylinder cover to form a closed sample cylinder; the inner walls of the basic sample cylinder and the heightening cylinder are provided with scale marks along the axial direction.
Other features of the utility model are:
vertical reinforcing ribs are arranged on the side walls of the foundation sample tube and the heightening tube body.
The base sample tube is provided with three snap locks, the heightening tube is provided with three snap lock hooks and three snap lock hooks respectively.
8 scale marks are uniformly distributed on the inner walls of the basic sample cylinder and the heightening cylinder, and 0 scale marks of the scale marks are respectively positioned at the cylinder opening of the basic sample cylinder and the cylinder opening of the heightening cylinder.
The base sample tube, the heightening tube body, the sample tube cover and the heavy hammer are all made of stainless steel.
And a heavy hammer handle is arranged above the heavy hammer.
The base bottom is provided with the waterproof sealing ring layer that is used for being connected with the shaking table.
The height-adjustable airtight sample barrel can adjust the height of a soil sample according to requirements, and the soil sample is convenient to fill and relatively airtight. On the basis of keeping the original economical efficiency, simple operation, clear principle and other advantages of measuring the maximum and minimum dry density by a vibrating table method, the problems of difficult sample loading, limited height, material loss, environmental pollution and the like are overcome. The method can effectively avoid the harm of fine particles escaping to the health of test personnel and the influence on test results, and can facilitate the measurement and calculation of the sample volume after the test is finished.
Drawings
FIG. 1 is a schematic view of the overall structure of a height-adjustable airtight cartridge of the present utility model;
FIG. 2 is a schematic view of the basic cartridge, with the top view being the front view and the bottom view being the top view;
FIG. 3 is a schematic view of the structure of the heightening cylinder, wherein the upper view is a front view, and the lower view is a top view;
FIG. 4 is a schematic view of the structure of the sample cartridge cover, with the top view being the front view and the bottom view being the top view;
FIG. 5 is a schematic diagram of the weight, the left side is a front view, and the right side is a side view;
fig. 6 is a schematic view of the construction of the snap lock, the left view being a front view and the right view being a side view.
The marks in the figures represent: 1. 1-1 parts of a basic sample barrel, 2 parts of an heightened barrel, 2-1 parts of an upper sample loading area, 3 parts of a sample barrel cover, 4 parts of a heavy hammer, 4-1 parts of a heavy hammer handle, 5 parts of a base, 6 parts of a barrel, 7 parts of a handle, 8 parts of a first connecting bulge, 9 parts of a hasp lock hook, 10 parts of a hasp lock, 11 parts of a sealing ring, 12 parts of a barrel connecting groove, 13 parts of a second connecting bulge, 14 parts of a barrel cover connecting groove, 15 parts of a scale mark.
The utility model is described in further detail below with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 to 6, the present embodiment provides a height-adjustable airtight cartridge comprising a base cartridge 1, a cartridge cover 3, a base 5, a weight 4, and an elevating cylinder 2, wherein:
the basic sample tube 1 comprises a sample tube body 6, wherein the sample tube body 6 is a revolution body and the axis is vertical to the ground; the opening Zhou Xiangyou of the sample cylinder body 6 is provided with first connecting bulges 8, and the sample cylinder body 6 is provided with uniformly distributed snap locks 10; handles 7 are arranged on two sides of a tube opening of the sample tube body 6, and the handles 7 are connected with the sample tube body 6 in a welding mode;
the heightening cylinder body 2 is a revolution body and has the same diameter as the sample cylinder body 6, the axis of the revolution body coincides with the axis of the revolution body of the sample cylinder body 6, one end of the heightening cylinder body 2 is circumferentially provided with a cylinder body connecting groove 12 matched with the first connecting bulge 8 at the mouth part of the sample cylinder body 6, and a sealing ring 11 is arranged in the cylinder body connecting groove 12; the other end Zhou Xiangyou of the second connecting projection 13; the upper end and the lower end of the heightening cylinder body 2 are provided with a hasp lock hook 9 matched with a hasp lock 10 of the sample cylinder body 6 and the same hasp lock 10, the two sides of the cylinder mouth of the heightening cylinder body 2 are also provided with handles 7, and the handles 7 are connected with the heightening cylinder body 2 in a welding mode;
the sample cylinder cover 3 is also a revolving body, the diameters of the revolving body and the sample cylinder body 6 are the same as those of the heightening cylinder body 2, the axes of the revolving bodies are coincident, a cylinder cover connecting groove 14 matched with a first connecting bulge 8 and a second connecting bulge 13 of the sample cylinder body 6 and the heightening cylinder body 2 is arranged on the sample cylinder cover 3, a sealing ring 11 is arranged in the cylinder cover connecting groove 14, a hasp lock hook 9 matched with a hasp lock 10 of the basic sample cylinder 1 and the heightening cylinder body 2 is also arranged on the sample cylinder cover 3, handles 7 are arranged at two sides of the sample cylinder cover 3, and the handles 7 are connected with the sample cylinder cover 3 in a welding mode;
the heavy hammer 4 is a solid columnar body, and the diameter of the outer wall of the heavy hammer 4 is the same as the inner diameters of the basic sample cylinder 1 and the heightening cylinder 2;
the base 5 is a solid disc with the diameter larger than that of the sample tube body 6, the axis of the solid disc is overlapped with the axis of the revolving body of the sample tube body 6, and the sample tube base 5 is welded with the sample tube body 6;
at least one heightened cylinder body 2 is arranged between the basic sample cylinder 1 and the sample cylinder cover 3 to form a closed sample cylinder; graduation marks 15 are arranged on the inner walls of the basic sample cylinder 1 and the heightening cylinder body 2 along the axial direction.
In this embodiment, vertical reinforcing ribs are arranged on the side walls of the foundation sample tube 1 and the heightening tube 2.
Three snap locks 10 on the basic sample tube 1, three snap lock hooks 9 and 10 on the heightened cylinder 2 and three snap lock hooks 9 on the sample tube cover 3 are respectively arranged.
8 scale marks 13 are uniformly distributed on the inner walls of the basic sample tube 1 and the heightening cylinder 2, and 0 scale marks of the scale marks are respectively positioned at the tube mouth of the basic sample tube 1 and the tube mouth of the heightening cylinder 2.
In this embodiment, the base sample tube 1, the heightening tube 2, the sample tube cover 4 and the weight 4 are made of stainless steel.
The weight handle 4-1 is arranged above the weight 4.
The bottom of the base 5 is provided with a waterproof sealing ring layer which is used for being connected with the vibrating table.
In the height-adjustable airtight sample tube of the embodiment, a plurality of heightening cylinders 2 are connected between the base sample tube 1 and the sample tube cover 3 according to the height of the test soil sample and the height requirement after the heavy hammer 4 falls down. The heightening cylinder body 2 can be freely detached. In addition, the matching design of the snap lock 10 and the snap lock hook 9 can enable the sample cylinder cover 3 to cover the foundation sample cylinder 1 and the heightening cylinder body 2 more tightly, and meanwhile, the locking and the unlocking are convenient. The design of the heightening cylinder body 2 can tightly combine the multilayer heightening cylinder body 2, the basic sample cylinder 1 and the sample cylinder cover 3 together, and can effectively reduce the mass loss caused by leakage of the test materials in the cylinder from the connecting gap. Meanwhile, because the locking and unlocking modes are simple and quick, the upper cylinder and the lower cylinder are more time-saving and labor-saving when being installed and separated in the test, and the locking and unlocking device is simple in structure and convenient and reliable to use. Besides, the hasp lock has the advantages of attractive appearance and unique design.
Fig. 2 shows a front view and a top view of a basic sample tube 1, wherein a lower sample loading area 1-1 is arranged inside the basic sample tube 1, and graduation marks 15 are arranged on the inner wall along the axial direction; the periphery of the basic sample tube 1 is uniformly distributed with 3 snap locks 10,2 handle positions 7 are positioned at two sides of the tube mouth of the basic sample tube 1, and the basic sample tube 1 is connected with the base 5 in a welding mode.
Fig. 3 shows a front view and a top view of the heightening cylinder 2, 3 snap locks 10 are uniformly distributed around the heightening cylinder 2, 2 handle positions 7 are positioned on two sides of the heightening cylinder 2, 3 snap lock hooks 9 are arranged in a bottom cylinder connecting groove 12, a sealing ring 11 is arranged in the bottom cylinder connecting groove, and graduation lines 15 are arranged on the inner wall along the axial direction.
Fig. 4 is a front view and a plan view of the sample cartridge cover 3; the periphery of the sample cylinder cover 3 is uniformly distributed with 3 hasp lock hooks 9,2 handle positions 7 are positioned on two sides of the sample cylinder cover 3, and a sealing ring 11 is arranged in a bottom cylinder cover connecting groove 14.
FIG. 5 shows a schematic structural diagram of the weight, wherein the left side is a front view and the right side is a side view;
fig. 6 is a schematic view of the snap lock construction, wherein the left view is a front view and the right view is a side view.
In this embodiment, the following dimensions are preferred:
basic cartridge 1: the cylinder height is 300mm, the inner diameter is 300mm, the wall thickness is 10mm, the base 5 is a solid disc connected with the vibrating table, and the solid disc is provided with a plurality of grooves and grooves: thickness 20mm and diameter 380mm; heightening cylinder 2: the height of the top connecting bulge is 10mm, the thickness is 4.5mm, 3 snap locks 10 are uniformly arranged on the top along the outer wall at a central angle of 120 degrees, and the set value of the main body part of each snap lock is 10mm away from the top of the bottom sample cylinder.
Heightening cylinder 2: the height of the cylinder is 150mm, the inner diameter is 300mm, the wall thickness is 10mm, the bottom is connected with the concave height of 10mm, and the thickness is 4.5mm; the height of the protruding part at the top is 10mm, the thickness is 4.5mm, the bottom 10mm of the heightening cylinder body 2 is uniformly provided with 3 hasp lock hooks 9 along the outer wall with 120-degree central angle, and the upper 10mm of the heightening cylinder body 2 is uniformly provided with 3 hasp locks 10 along the outer wall with 120-degree central angle.
The sample cylinder cover 3 is 20mm thick and 320mm long, the bottom is connected with a concave part with the height of 10mm and the thickness of 4.5mm, and 3 snap lock hook parts are uniformly arranged at the 10mm position of the cover bottom along the outer wall at a central angle of 120 degrees; the thickness of the sealing ring is 2mm.
The height-adjustable airtight sample tube provided by the embodiment is used for loading samples into the basic sample tube 1, when the lower sample loading area 1-1 can meet the sample loading conditions, the positions of the snap lock 10 are aligned to the snap lock hook 9 and the snap lock 10, and after the sample loading is completed, a sample cap is put into the basic sample tube 1 according to a conventional method.
When the basic sample tube 1 does not meet the sample loading conditions, the heightened tube body 2 needs to be added, and the use method is as follows:
step one, loading samples into a basic sample cylinder 1, and loading test materials into a lower sample loading area 1-1 in a divided manner until the basic sample cylinder 1 is fully filled;
step two, adding the heightening cylinder body 2, fixing a sealing ring 11 after aligning to the position of the hasp lock hook 9, then buckling the hasp lock 10 and the hasp lock hook 9, and then continuing sample loading until the upper sample loading area 2-1 of the heightening cylinder body 2 is full;
step three, repeating the step two until the test requirement is met;
step four, after sample loading is completed, the heavy hammer 4 is put into the heightening cylinder 2;
step five, adding a heightening cylinder body 2 with proper height;
step six, adding the sample cylinder cover 3, fixing the sealing ring 11 after aligning the position of the locking hook 9, and then fastening the snap lock 10.
The tightness-adjustable-height sample tube solves the problems that the macropore ratio sample loading quality in a test cannot reach the standard and specified quality, the instrument is inconvenient to install and the like, can effectively avoid the harm of fine particles escaping to the health of test personnel and the influence on test results, and can enable the measurement and calculation of related data to be more convenient after the test is finished. The brought technical effects are as follows:
1. the applicable sample range is enlarged, and the adaptability is strong
The aim of adapting to soil samples with various densities is fulfilled by adding the heightened cylinder, and the problem that the volume of the low-density sample in the test exceeds the volume of the sample cylinder after the low-density sample is filled according to a standard method is avoided.
2. Has good tightness
Through increasing sealing washer and concave-convex structure's design, improved the seal of sample section of thick bamboo greatly, avoided the loss of experimental material and dust particle to experimenter's influence.
3. Simple structure and convenient operation
The base sample tube is assembled by the aid of the snap lock and the snap lock hook, so that an experimenter can conveniently operate the base sample tube, and the experimenter can conveniently load soil samples.
4. The measurement and calculation of the volume of the sample in the cylinder are more convenient
The inner wall of the basic sample cylinder and the heightening cylinder body is provided with scale marks along the axial direction, so that the distance from the sample surface to the sample cylinder opening of the sample cylinder can be directly read after the test is finished, errors caused by measuring with a ruler are avoided, and the measurement and the calculation of the volume of the sample in the cylinder are more convenient.
Claims (6)
1. The utility model provides a high adjustable airtight sample section of thick bamboo, includes basic sample section of thick bamboo (1), sample barrel head (3), base (5), weight (4), its characterized in that still includes increases barrel (2), wherein:
the basic sample tube (1) comprises a sample tube body (6), wherein the sample tube body (6) is a revolution body and the axis is vertical to the ground; the opening Zhou Xiangyou of the sample tube body (6) is provided with first connecting bulges (8), and the sample tube body (6) is provided with uniformly distributed snap locks (10); handles (7) are arranged on two sides of a cylinder opening of the sample cylinder body (6), and the handles (7) are connected with the sample cylinder body (6) in a welding mode;
the heightening cylinder body (2) is a revolution body and has the same diameter as the sample cylinder body (6), the revolution body axis of the heightening cylinder body (2) coincides with the revolution body axis of the sample cylinder body (6), one end of the heightening cylinder body is circumferentially provided with a cylinder body connecting groove (12) matched with a first connecting bulge (8) at the opening part of the sample cylinder body (6), and a sealing ring (11) is arranged in the cylinder body connecting groove (12); the other end Zhou Xiangyou is provided with a second connecting bulge (13); the upper end and the lower end of the heightening cylinder body (2) are provided with a hasp lock hook (9) matched with a hasp lock (10) of the sample cylinder body (6) and the same hasp lock (10), the two sides of the cylinder opening of the heightening cylinder body (2) are also provided with handles (7), and the handles (7) are connected with the heightening cylinder body (2) in a welding mode;
the sample cylinder cover (3) is also a revolving body, the diameters of the revolving body and the sample cylinder body (6) are the same as those of the heightening cylinder body (2), the axes of the revolving body are coincident, a cylinder cover connecting groove (14) matched with a first connecting bulge (8) and a second connecting bulge (13) of the sample cylinder body (6) and the heightening cylinder body (2) is formed in the sample cylinder cover (3), a sealing ring (11) is arranged in the cylinder cover connecting groove (14), a hasp lock hook (9) matched with a hasp lock (10) of the basic sample cylinder (1) and the heightening cylinder body (2) is also formed in the sample cylinder cover (3), handles (7) are arranged on two sides of the sample cylinder cover (3), and the handles (7) are connected with the sample cylinder cover (3) in a welding mode;
the heavy hammer (4) is a solid columnar body, and the diameter of the outer wall of the heavy hammer (4) is the same as the inner diameters of the basic sample cylinder (1) and the heightening cylinder (2);
the base (5) is a solid disc with the diameter larger than that of the sample tube body (6), the axis of the solid disc is coincident with the axis of the revolving body of the sample tube body (6), and the sample tube base (5) is welded with the sample tube body (6);
at least one heightening cylinder body (2) is arranged between the basic sample cylinder (1) and the sample cylinder cover (3) to form a closed sample cylinder; the inner walls of the basic sample tube (1) and the heightening tube body (2) are axially provided with scale marks (15).
2. The height-adjustable airtight cartridge as claimed in claim 1, wherein vertical ribs are provided on the side walls of the base cartridge (1) and the elevation cylinder (2).
3. The height-adjustable airtight sample cartridge according to claim 1, wherein three snap locks (10) on the base sample cartridge (1), three snap lock hooks (9) and snap locks (10) on the elevation cylinder (2), and three snap lock hooks (9) on the sample cartridge cover (3) are provided.
4. The height-adjustable airtight sample tube according to claim 1, wherein 8 scale marks (15) are uniformly distributed on the inner walls of the basic sample tube (1) and the heightening tube body (2), and 0 scale marks of the scale marks are respectively positioned at the tube mouth of the basic sample tube (1) and the tube mouth of the heightening tube body (2).
5. The height-adjustable airtight sample tube according to claim 1, wherein the base sample tube (1), the height-increasing tube body (2), the sample tube cover (3) and the weight (4) are all made of stainless steel.
6. A height-adjustable airtight sample tube according to claim 1, wherein the bottom of the base (5) is provided with a waterproof sealing ring layer for connection with a vibrating table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321006115.2U CN220251480U (en) | 2023-04-28 | 2023-04-28 | Height-adjustable airtight sample cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321006115.2U CN220251480U (en) | 2023-04-28 | 2023-04-28 | Height-adjustable airtight sample cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN220251480U true CN220251480U (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321006115.2U Active CN220251480U (en) | 2023-04-28 | 2023-04-28 | Height-adjustable airtight sample cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117169049A (en) * | 2023-09-21 | 2023-12-05 | 中国水利水电科学研究院 | Method and device for testing relative density of field original grading blasting pile material |
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2023
- 2023-04-28 CN CN202321006115.2U patent/CN220251480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117169049A (en) * | 2023-09-21 | 2023-12-05 | 中国水利水电科学研究院 | Method and device for testing relative density of field original grading blasting pile material |
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