CN109132179B - Mechanical self-locking sample collection barrel - Google Patents
Mechanical self-locking sample collection barrel Download PDFInfo
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- CN109132179B CN109132179B CN201710501444.7A CN201710501444A CN109132179B CN 109132179 B CN109132179 B CN 109132179B CN 201710501444 A CN201710501444 A CN 201710501444A CN 109132179 B CN109132179 B CN 109132179B
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- barrel
- clamping hook
- cover
- barrel cover
- edge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
- B65D45/16—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped
- B65D45/18—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped of snap-over type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention relates to a mechanical self-locking sample collection barrel.A barrel cover is hermetically connected with a barrel body through a sealing assembly, a plurality of grooves are uniformly distributed on the inner side of the barrel cover along the circumferential direction, and a self-locking assembly is arranged in each groove; the barrel edge is assembled at the barrel opening of the barrel body, a clamping hook is accommodated between the outer side of the barrel edge and the inner wall of the barrel cover, the clamping hook is rotatably connected with the barrel cover, a compression spring is arranged between the outer side of the barrel edge and the barrel cover, and two ends of the compression spring are respectively abutted against the outer side of the clamping hook and the inner wall of the barrel cover; the clamping hook cover is covered on the inner side of the clamping hook and is arranged on the barrel cover, a hole A is formed in the clamping hook cover, and the clamping hook is ejected out of the hole A through the elasticity of the compression spring and is abutted against the barrel edge; the limiting metal piece can be arranged above the clamping hook in a vertically moving mode, the elastic device is arranged above the limiting metal piece, one end of the limiting metal piece is abutted to the sealing assembly under the action of the elastic device, the other end of the limiting metal piece extends to the position below the upper end of the clamping hook, the clamping hook is limited to rotate, and self-locking of the barrel cover and the barrel body is achieved. The invention has the advantages of mechanical self-locking, complete sealing, smooth inner wall without residue and the like.
Description
Technical Field
The invention relates to a device for hermetically storing sample materials, which is used in the industries of steel, coal and the like, in particular to a mechanical self-locking sample collecting barrel.
Background
The sample collecting barrel is an important storage device for sample preparation operation in industries such as steel, coal and the like. In the prior art, the collection appearance bucket is mostly open stainless steel bucket. After the sample collecting barrel is used for containing sample materials, the interference of moisture, dust and human factors in the air is very easy to happen in the process of storage and transportation; and the sample identification is manually marked and pasted, so that mistakes are easily made, and wrong barrels and black barrels are generated. The accuracy of the sample is very important to the cost control and production arrangement of each enterprise and unit.
Therefore, a sample collecting barrel which is simple and convenient to seal, good in sealing effect after sealing and incapable of being opened easily by personnel without special tools is needed. The sample collection barrel can be used in cooperation with sample packaging equipment, automatic writing and reading of sample information of the equipment are achieved, and intelligent closed-loop management of the samples is achieved.
Disclosure of Invention
In order to solve the problems of the conventional sample collection barrel and meet the use requirement of sample packaging, the invention aims to provide a mechanical self-locking sample collection barrel.
The purpose of the invention is realized by the following technical scheme:
the automatic barrel cover comprises a barrel cover, a barrel body, a sealing assembly and a self-locking assembly, wherein the barrel cover is connected with the barrel body in a sealing mode through the sealing assembly, a plurality of grooves are uniformly distributed on the inner side of the barrel cover along the circumferential direction, and the self-locking assembly is arranged in each groove; the self-locking assembly comprises an elastic device, a limiting metal piece, a barrel edge, a compression spring, a clamping hook and a clamping hook cover, wherein the barrel edge is assembled at a barrel opening of the barrel body, the clamping hook is accommodated between the outer side of the barrel edge and the inner wall of the barrel cover, the clamping hook is rotatably connected with the barrel cover, the compression spring is arranged between the outer side of the barrel edge and the barrel cover, and two ends of the compression spring are respectively abutted against the outer side of the clamping hook and the inner wall of the barrel cover; the clamping hook cover covers the inner side of the clamping hook and is installed on the barrel cover, a hole A is formed in the clamping hook cover, and the clamping hook is ejected out of the hole A through the elasticity of the compression spring and is abutted against the barrel edge; the limiting metal piece is arranged above the clamping hook in a vertically movable mode, the elastic device is arranged above the limiting metal piece, one end of the limiting metal piece is abutted against the sealing assembly under the action of the elastic device, the other end of the limiting metal piece extends to the position below the upper end of the clamping hook, the clamping hook is limited to rotate, and self-locking of the barrel cover and the barrel body is achieved;
wherein: the lower end of the clamping hook is a rotating shaft part which is rotatably connected with the barrel cover, the inner side of the upper end of the clamping hook is an arc-shaped part A, the outer side of the upper end of the clamping hook is provided with an annular groove, and the arc-shaped part A is always abutted against the outer side of the barrel edge under the action of a compression spring in the opening or closing process of the barrel cover; one end of the compression spring is accommodated in the annular groove; a rotating groove for the rotation of the clamping hook is formed between the clamping hook cover and the inner wall of the barrel cover, a rotating shaft mounting seat mounted on the barrel cover is arranged in the rotating groove, the rotating shaft is partially rotatably mounted in the rotating shaft mounting seat, and a limiting column for preventing the clamping hook from being completely ejected is arranged on the clamping hook;
the top of the outer side of the barrel edge is provided with an arc-shaped part B, an arc-shaped reducing part which is radially inwards contracted is arranged below the arc-shaped part B, and the clamping hook is sequentially abutted against the arc-shaped part B and the reducing part in the opening or closing process of the barrel cover;
the limiting metal sheet is L-shaped, one edge of the L-shaped metal sheet is positioned above the sealing component and the clamping hook cover, and the elastic device is arranged between the edge and the lower surface of the upper cover of the barrel cover; the other edge of the L shape is positioned between the inner wall of the barrel cover and the hook cover;
the sealing assembly comprises a sealing ring gasket and a sealing ring, the sealing ring is positioned above the barrel edge and is abutted against the barrel edge, and the sealing ring gasket is arranged above the sealing ring; the upper surface of the sealing ring gasket extends upwards to form an upper bulge which is in sealing butt joint with the lower surface of the upper cover of the barrel cover; the lower surface of the sealing ring gasket extends downwards to form a lower bulge, and an inner hole of the sealing ring is abutted against the lower bulge;
the elastic device is an arc-shaped structure formed by connecting a plurality of spring pieces, and the elastic device is compressed and flattened by a limiting metal sheet attracted by a magnetic substance in the process of opening the barrel cover;
or, the elastic device comprises a flat plate and spring plates, a plurality of holes B are formed in the flat plate, each hole B corresponds to one spring plate, one side of each spring plate is pivoted with the edge of the hole B, the other side of each spring plate is a free end, and each spring plate of the elastic device is compressed and accommodated in the corresponding hole B by a limiting metal sheet sucked up by a magnetic substance in the opening process of the barrel cover;
a barrel base is installed at the bottom of the barrel body.
The invention has the advantages and positive effects that:
1. mechanical self-locking; after the barrel cover is buckled with the barrel body, the barrel cover cannot be opened by a person with hands or by using a non-special tool, the barrel body or the barrel cover can be damaged by forcedly opening the barrel cover, and the barrel cover can be opened only by using a matched tool with a magnetic substance.
2. Completely sealing; after the barrel cover and the barrel body are buckled, the sealing ring on the barrel cover is tightly attached to the barrel edge on the barrel body, so that the sealing effect is achieved, and moisture, dust and the like in the external air are isolated.
3. The inner wall is smooth and has no residue; the invention has smooth inner wall without edges and corners and residual dead corners of the sample, adopts plastic as the material, has hydrophobic property and is not stained with the sample.
4. Can be used in automation equipment; the invention opens the barrel cover by means of a matched tool, has extremely low failure rate, and can completely separate from manual work when running in automatic equipment; and the chip can be built in the barrel bottom and the barrel cover, and the information of the sample barrel can be automatically written in or read.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view in partial section of FIG. 1;
FIG. 3 is a schematic view of a hook according to the present invention;
FIG. 4 is a schematic structural view of the bucket rim of the present invention;
FIG. 5 is a schematic view of a structure of the elastic device of the present invention;
FIG. 6 is a schematic view of another configuration of the elastic means of the present invention;
wherein: the barrel comprises a barrel cover 1, a barrel body 2, a barrel base 3, an elastic device 4, a limiting metal piece 5, a sealing ring gasket 6, a sealing ring 7, a barrel edge 8, a compression spring 9, a clamping hook 10, a clamping hook cover 11, a groove 12, an upper bulge 13, a lower bulge 14, a rotating shaft part 15, a hole A16, a limiting column 17, an annular groove 18, an arc part A19, a spigot 20, an arc part B21, a reducing part 22, a spring leaf 23, a flat plate 24, a spring plate 25 and a hole B26.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the invention comprises a barrel cover 1, a barrel body 2, a sealing assembly and a self-locking assembly, wherein the barrel cover 1 is hermetically connected with the barrel body 2 through the sealing assembly, and a barrel base 3 is arranged at the bottom of the barrel body 2 and is used for positioning during non-manual operation. A plurality of grooves 12 (the number of the grooves 12 in this embodiment is 24) are uniformly distributed along the circumferential direction on the inner side of the barrel cover 1, and a self-locking component is arranged in each groove 12.
The self-locking assembly comprises an elastic device 4, a limiting metal piece 5, a bucket edge 8, a compression spring 9, a clamping hook 10 and a clamping hook cover 11, wherein the bucket edge 8 is assembled at the bucket opening of the bucket body 2. The sealing assembly comprises a sealing ring gasket 6 and a sealing ring 7, the sealing ring 7 is positioned above the bucket edge 8 and is abutted against the bucket edge 8, and the sealing ring gasket 6 is arranged above the sealing ring 7. The upper surface of the sealing ring gasket 6 extends upwards to form an upper bulge 13 which is in sealing butt joint with the lower surface of the upper cover of the barrel cover 1; the lower surface of the gasket 6 extends downward to form a lower protrusion 14, and the inner hole of the gasket 7 abuts against the lower protrusion 14. A clamping hook 10 is accommodated between the outer side of the barrel edge 8 and the inner wall of the barrel cover 1, the clamping hook 10 is rotatably connected with the barrel cover 1, a compression spring 9 is arranged between the outer side and the barrel cover 1, and two ends of the compression spring 9 are respectively abutted against the outer side of the clamping hook 10 and the inner wall of the barrel cover 1. The hook cover 11 covers the inner side of the hook 10 and is arranged on the barrel cover 1, a square hole A16 is formed in the hook cover 11, and the hook 10 is ejected out of the hole A16 through the elasticity of the compression spring 9 and is abutted against the barrel edge 8. As shown in fig. 3, the lower end of the hook 10 is a rotating shaft portion 15, a rotating groove for the hook 10 to rotate is formed between the hook cover 11 and the inner wall of the barrel cover 1, a rotating shaft mounting seat mounted on the barrel cover 1 is arranged in the rotating groove, and the rotating shaft portion 15 is rotatably mounted in the rotating shaft mounting seat. The hook 10 is provided with a limiting column 17, and the limiting column 17 can be arranged at two sides of the hook 10; the position-limiting column 17 can be clamped at the edge of the hole A16 when the hook 10 is ejected from the hole A16, so that the hook 10 is prevented from being ejected completely. The inner side of the upper end of the clamping hook 10 is an arc-shaped part A19, the outer side is provided with an annular groove 18, the arc-shaped part A19 is always abutted against the outer side of the barrel edge 8 under the action of the compression spring 9 in the opening or closing process of the barrel cover 1, one end of the compression spring 9 is accommodated in the annular groove 18, and the other end of the compression spring is abutted against the inner wall of the barrel cover 1. As shown in fig. 4, the top of the outer side of the tub rim 8 is an arc-shaped part B21, and a radially inwardly-contracted and arc-shaped reduced diameter part 22 is arranged below the arc-shaped part B21, and the snap hook 10 is abutted with the arc-shaped part B21 and the reduced diameter part 22 in sequence in the process of opening or closing the tub cover 1. The inner side of the barrel edge 8 is provided with a spigot 20 which is convenient for connecting and limiting with the barrel opening of the barrel body 2.
The limiting metal piece 5 is arranged above the clamping hook 10 in a vertically movable mode, the limiting metal piece 5 is L-shaped, one edge of the L-shaped limiting metal piece is positioned above the sealing ring gasket 6 and the clamping hook cover 11, and the elastic device 4 is arranged between the edge and the lower surface of the upper cover of the barrel cover 1; the other side of the L shape is positioned between the inner wall of the barrel cover 1 and the hook cover 11. One side of the L-shaped limiting metal piece 5 is abutted to the sealing ring gasket 6 under the action of the elastic device 4, and the other side of the L-shaped limiting metal piece extends to the lower part of the upper end of the clamping hook 10 to limit the rotation of the clamping hook 10, so that the self-locking of the barrel cover 1 and the barrel body 2 is realized.
As shown in fig. 5, the elastic device 4 of the present invention is an arc structure formed by connecting a plurality of spring strips 23, and the elastic device 4 is compressed and flattened by the limiting metal strip 5 attracted by the magnetic substance during the opening process of the barrel cover 1.
Alternatively, as shown in fig. 6, the elastic device 4 of the present invention may further include a flat plate 24 and a spring plate 25, the flat plate 24 is provided with a plurality of holes B26, each hole B26 corresponds to one spring plate 25, one side of each spring plate 25 is pivotally connected to an edge of the hole B26, and the other side of each spring plate 25 is a free end, and each spring plate 25 of the elastic device 4 is compressed and accommodated in the corresponding hole B26 by the limiting metal sheet 5 attracted by the magnetic substance in the process of opening the tub cover 1.
The working principle of the invention is as follows:
as shown in fig. 2, when the barrel cover 1 is fastened, the matching tool is placed above the barrel cover 1, and magnetic substances (such as magnets) are arranged around the matching tool, so that the limiting metal part 5 is attracted and moves towards the upper surface of the barrel cover 1, and the elastic device 4 is compressed and flattened by the limiting metal part 5. In the process of integrally fastening the barrel cover 1 downwards, the arc-shaped part A19 on the inner side of the snap hook 10 contacts with the arc-shaped part B21 on the outer side of the barrel edge 8. As the hook 10 is contacted with the barrel edge 8 deeply, under the action of the arc-shaped part B21 on the barrel edge 8, the hook 10 rotates along the rotating shaft part 15 towards the outer side direction of the barrel cover 1 until reaching the maximum diameter point of the barrel edge 8 (namely the intersection of the arc-shaped part B21 and the reduced diameter part 22), and at the moment, the compression spring 9 is pressed to the maximum value; after the maximum value is exceeded, the snap hook 10 is ejected by the compression spring 9 and is clamped at the reduced diameter part 22 of the bucket edge 8. When the matched tool is removed, the elastic device 4 ejects the limiting metal piece 5 downwards, and after the limiting metal piece 5 is ejected, the other side of the L shape extends to the lower part of the upper end of the clamping hook 10 to prevent the clamping hook 10 from rotating; at this time, the hook 10 is locked, and the barrel cover 1 cannot be opened.
When the barrel cover 1 is opened, a matched tool is arranged above the barrel cover 1, the limiting metal piece 5 is attracted by magnetic force and moves towards the upper part of the barrel cover 1, the elastic device 4 is pressed flat, and the limiting metal piece 5 does not limit the rotation of the clamping mechanism 10 any more. At the moment, the barrel cover 1 moves upwards under the action of external force, and the clamping hook 10 rotates around the rotating shaft part 15 to the outer side direction of the barrel cover 1 along with the deep contact with the barrel edge 8 (the transition from the reducing part 22 to the arc part B21) until the diameter of the barrel edge 8 is the maximum; after the maximum point is crossed, the barrel cover 1 is separated from the barrel body 2, and the opening is finished.
Claims (10)
1. The utility model provides a machinery auto-lock collection appearance bucket which characterized in that: the barrel cover comprises a barrel cover (1), a barrel body (2), a sealing assembly and a self-locking assembly, wherein the barrel cover (1) is connected with the barrel body (2) in a sealing mode through the sealing assembly, a plurality of grooves (12) are uniformly distributed on the inner side of the barrel cover (1) along the circumferential direction, and the self-locking assembly is arranged in each groove (12); the self-locking assembly comprises an elastic device (4), a limiting metal piece (5), a barrel edge (8), a compression spring (9), a clamping hook (10) and a clamping hook cover (11), the barrel edge (8) is assembled at the barrel opening of the barrel body (2), the clamping hook (10) is accommodated between the outer side of the barrel edge (8) and the inner wall of the barrel cover (1), the clamping hook (10) is rotatably connected with the barrel cover (1), the compression spring (9) is arranged between the outer side and the barrel cover (1), and two ends of the compression spring (9) are respectively abutted against the outer side of the clamping hook (10) and the inner wall of the barrel cover (1); the clamping hook cover (11) covers the inner side of the clamping hook (10) and is installed on the barrel cover (1), a hole A (16) is formed in the clamping hook cover (11), and the clamping hook (10) is ejected out of the hole A (16) through the elasticity of the compression spring (9) and is abutted to the barrel edge (8); limiting metal piece (5) can set up in the top of trip (10) with reciprocating, is equipped with in the top of limiting metal piece (5) resilient means (4), limiting metal piece (5) under resilient means's (4) effect one end with the seal assembly butt, the other end extends the below of trip (10) upper end, restriction trip (10) rotate, realize the auto-lock of bung (1) and staving (2).
2. The mechanical self-locking sample collection bucket according to claim 1, wherein: the lower end of the clamping hook (10) is a rotating shaft part (15), the rotating shaft part (15) is rotatably connected with the barrel cover (1), the inner side of the upper end of the clamping hook (10) is an arc-shaped part A (19), the outer side of the upper end of the clamping hook (10) is provided with an annular groove (18), and the arc-shaped part A (19) is always abutted to the outer side of the barrel edge (8) under the action of a compression spring (9) in the opening or closing process of the barrel cover (1); one end of the compression spring (9) is accommodated in the annular groove (18).
3. The mechanical self-locking sample collection bucket according to claim 2, wherein: the rotary groove for the rotation of the clamping hook (10) is formed between the clamping hook cover (11) and the inner wall of the barrel cover (1), the rotary groove is internally provided with a rotary shaft mounting seat arranged on the barrel cover (1), the rotary shaft part (15) is rotatably arranged in the rotary shaft mounting seat, and the clamping hook (10) is provided with a limiting column (17) for preventing the clamping hook (10) from being completely popped out.
4. The mechanical self-locking sample collection bucket according to claim 1, wherein: the top of the outer side of the barrel edge (8) is an arc-shaped part B (21), an arc-shaped reducing part (22) which is radially inwards contracted is arranged below the arc-shaped part B (21), and the clamping hook (10) is sequentially abutted against the arc-shaped part B (21) and the reducing part (22) in the opening or closing process of the barrel cover (1).
5. The mechanical self-locking sample collection bucket according to claim 1, wherein: the limiting metal sheet (5) is L-shaped, one edge of the L-shape is positioned above the sealing component and the clamping hook cover (11), and the elastic device (4) is arranged between the edge and the lower surface of the upper cover of the barrel cover (1); the other side of the L shape is positioned between the inner wall of the barrel cover (1) and the hook cover (11).
6. The mechanical self-locking sample collection bucket according to claim 1, wherein: the sealing assembly comprises a sealing ring gasket (6) and a sealing ring (7), the sealing ring (7) is located above the barrel edge (8) and is abutted against the barrel edge (8), and the sealing ring gasket (6) is arranged above the sealing ring (7).
7. The mechanical self-locking sample collection bucket according to claim 6, wherein: the upper surface of the sealing ring gasket (6) extends upwards to form an upper bulge (13) which is in sealing and abutting joint with the lower surface of the upper cover of the barrel cover (1); the lower surface of the sealing ring gasket (6) extends downwards to form a lower bulge (14), and the inner hole of the sealing ring (7) is abutted to the lower bulge (14).
8. The mechanical self-locking sample collection bucket according to claim 1, wherein: the elastic device (4) is of an arc structure formed by connecting a plurality of spring pieces (23), and the elastic device (4) is compressed and flattened by a limiting metal piece (5) attracted by a magnetic substance in the opening process of the barrel cover (1).
9. The mechanical self-locking sample collection bucket according to claim 1, wherein: the elastic device (4) comprises a flat plate (24) and spring plates (25), a plurality of holes B (26) are formed in the flat plate (24), each hole B (26) corresponds to one spring plate (25), one side of each spring plate (25) is pivoted with the edge of the hole B (26), the other side of each spring plate (25) is a free end, and each spring plate (25) of the elastic device (4) is compressed and contained in the corresponding hole B (26) through a limiting metal sheet (5) attracted by a magnetic substance in the opening process of the barrel cover (1).
10. The mechanical self-locking sample collection bucket according to claim 1, wherein: a barrel base (3) is installed at the bottom of the barrel body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501444.7A CN109132179B (en) | 2017-06-27 | 2017-06-27 | Mechanical self-locking sample collection barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710501444.7A CN109132179B (en) | 2017-06-27 | 2017-06-27 | Mechanical self-locking sample collection barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109132179A CN109132179A (en) | 2019-01-04 |
| CN109132179B true CN109132179B (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710501444.7A Active CN109132179B (en) | 2017-06-27 | 2017-06-27 | Mechanical self-locking sample collection barrel |
Country Status (1)
| Country | Link |
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| CN (1) | CN109132179B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111319889B (en) * | 2020-03-06 | 2021-07-23 | 绍兴文理学院 | Garbage clearing system and method based on data platform |
| CN114229225A (en) * | 2021-12-24 | 2022-03-25 | 煤炭科学技术研究院有限公司 | Self-locking device of barrel cover |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007269344A (en) * | 2006-03-30 | 2007-10-18 | Miraial Kk | Sheet storage container hook and sheet storage container |
| CN105438612A (en) * | 2016-01-08 | 2016-03-30 | 湖州科达化工燃料有限公司 | Reinforced type chemical storage vat |
| WO2016112862A1 (en) * | 2015-01-14 | 2016-07-21 | 上海鸿研物流技术有限公司 | Container and locking mechanism thereof |
| CN106742584A (en) * | 2017-03-02 | 2017-05-31 | 胡和萍 | A kind of polyester fiber filter cylinder storage device |
-
2017
- 2017-06-27 CN CN201710501444.7A patent/CN109132179B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007269344A (en) * | 2006-03-30 | 2007-10-18 | Miraial Kk | Sheet storage container hook and sheet storage container |
| WO2016112862A1 (en) * | 2015-01-14 | 2016-07-21 | 上海鸿研物流技术有限公司 | Container and locking mechanism thereof |
| CN105438612A (en) * | 2016-01-08 | 2016-03-30 | 湖州科达化工燃料有限公司 | Reinforced type chemical storage vat |
| CN106742584A (en) * | 2017-03-02 | 2017-05-31 | 胡和萍 | A kind of polyester fiber filter cylinder storage device |
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| Publication number | Publication date |
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| CN109132179A (en) | 2019-01-04 |
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