CN212363595U - Quick check out test set of tealeaves sealing performance in bags - Google Patents
Quick check out test set of tealeaves sealing performance in bags Download PDFInfo
- Publication number
- CN212363595U CN212363595U CN202021125673.7U CN202021125673U CN212363595U CN 212363595 U CN212363595 U CN 212363595U CN 202021125673 U CN202021125673 U CN 202021125673U CN 212363595 U CN212363595 U CN 212363595U
- Authority
- CN
- China
- Prior art keywords
- sealing
- plate
- fixing piece
- hydraulic
- hydraulic tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 106
- 241001122767 Theaceae Species 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 238000003848 UV Light-Curing Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000012795 verification Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000009461 vacuum packaging Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Images
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model discloses a rapid detection device for the sealing performance of bagged tea, which relates to the technical field of food detection and comprises a hydraulic tank, a sealing ring, a supporting plate, a supporting rod, a straight gear, a sealing plate, a spur gear, a motor, an inlet sealing sheet, a side cover, a rotor fixing piece, a hydraulic fixing piece and a bottom plate; when the spur gear is nearest to the sealing plate, the internal pressure is the largest, if the tea leaves deform, the sealing performance of the tea leaves cannot meet the requirement, the tea leaves can be obtained in the same way, when the tea leaves are pressurized, the interior of the tea leaves does not deform, the sealing performance of the tea leaves can meet the requirement because the device does not need liquid to be used as a medium for verification, the quality of the tea leaves is improved, the detection efficiency is improved, the labor is saved, and the purpose of rapidly detecting the sealing performance of the tea leaves is achieved.
Description
Technical Field
The utility model relates to a sealed technical field that detects specifically is quick check out test set of tealeaves sealing performance in bags.
Background
For the convenience of preservation and transportation after the system of stir-fry finishes, generally all can carry out vacuum seal package through the machine, and prior art is in sealed package, often can appear two problems: firstly, the problem of air leakage of the vacuum packaging bag containing tea leaves due to damage or untight sealing of the vacuum packaging bag causes the tea leaves to be damp and mildewed in the process of storage or transportation; secondly, the vacuum packaging bag with tea leaves is affected by heat, extrusion, impact and wear resistance in the process of storage and transportation, so that the packaging bag is damaged and exploded, the function of preserving and protecting the tea leaves by the packaging bag is lost, and the quality of the tea leaves is affected.
Measures need to be taken before the tea leaves are subjected to the contamination limit, and one of the ways to prevent the contamination of food is to detect the tightness of the tea leaf package. However, it is difficult to strictly detect the sealing property of the package after the tea is packaged, so news such as mildewing and the like of the food package due to poor sealing property is often exposed, a very bad influence is caused, and unnecessary economic loss of enterprises is caused. In the food processing process, the packaged tea needs to be detected to prevent the damage of the appearance and the impurities mixed in the interior. Present tealeaves detection device because place in aqueous at needs and detect, after detecting the completion, can remain moisture on the food bag, the influence is packed, has increased workman's intensity of labour, needs professional technique and equipment simultaneously, and ordinary people troublesome poeration influences efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick check out test set of tealeaves sealing performance in bags for solve the technical problem who exists among the prior art.
The utility model aims to overcome the defects of the prior art and provide a rapid detection device for the sealing performance of bagged tea.
The purpose of the utility model is realized through the following technical scheme:
the sealing device comprises a hydraulic tank, a sealing ring, a supporting plate, a supporting rod, a straight gear, a sealing plate, a spur gear, a motor, an inlet sealing sheet, a side cover, a rotor fixing piece and a hydraulic fixing piece;
wherein the cambered surface of the hydraulic tank is provided with a square hole, the side cover is detachably arranged on the square hole in a sealing way, the inner wall of the side cover is fixedly bonded with an inlet sealing sheet, the inner wall surface of the inlet sealing sheet is matched with the inner wall surface of the hydraulic tank,
wherein one end of the hydraulic tank is matched and concentrically arranged with the sealing plate, the hydraulic tank is detachably connected with the sealing plate for the part of the hydraulic tank, which is abutted against the sealing plate,
wherein the sealing plate and the support rod are arranged concentrically and matched, the sealing plate and the support rod can be connected in a sliding way for the part of the sealing plate, which is contacted with the support rod,
a through hole is arranged in the center of the sealing plate, one end of the supporting rod penetrates through the sealing plate and goes deep into the hydraulic tank, the other end of the supporting rod is arranged outside the hydraulic tank,
wherein one end of the supporting rod is matched and concentrically arranged with the supporting plate, the supporting rod is fixedly connected with the supporting plate for the part of the supporting rod, which is pressed against the supporting plate,
wherein the edge of the supporting plate is fixedly provided with a circle of sealing ring, the supporting plate is detachably connected with the sealing ring for the part of the supporting plate which is abutted against the sealing ring, the supporting plate is connected with the hydraulic tank in a sliding and sealing way through the sealing ring,
wherein the top of the hydraulic fixing piece is provided with a hydraulic tank, the hydraulic fixing piece is fixedly connected with the hydraulic tank for the part of the hydraulic fixing piece, which is abutted against the hydraulic tank,
wherein the other end of the supporting rod is provided with a through hole, the through hole of the supporting rod is matched with the through hole at one end of the straight gear, the supporting rod and the straight gear can be fixedly connected for the part of the supporting rod which is abutted against the straight gear,
the other end of the straight gear is arranged in a tangent way with the spur gear, the straight gear is rotatablely connected with the spur gear for the part where the straight gear is contacted with the spur gear,
wherein the spur gear is matched with a rotating output shaft of the motor and is concentrically and fixedly connected with the rotating output shaft of the motor,
the top of the rotor fixing piece is provided with a motor, and the rotor fixing piece is fixedly connected with the motor for the part of the rotor fixing piece, which is abutted against the motor.
Further, a bottom plate is included;
the bottom plate is provided with a hydraulic fixing piece, and the bottom plate is fixedly connected with the hydraulic fixing piece for the part of the bottom plate, which is abutted against the hydraulic fixing piece.
Furthermore, a rotor fixing piece is arranged on the bottom plate, and the bottom plate is fixedly connected with the rotor fixing piece for the part of the bottom plate, which is abutted against the rotor fixing piece.
Furthermore, the support rod is rotatably connected with the spur gear by a screw and a nut.
Furthermore, UV curing agents are adopted to bond between the hydraulic fixing piece and the hydraulic tank and between the rotor fixing piece and the motor.
Furthermore, the sealing ring and the inlet sealing sheet are made of nitrile rubber materials.
Furthermore, the hydraulic tank is made of galvanized steel.
Further, the bottom plate is made of an aluminum alloy material.
The utility model has the advantages that: (1) the hydraulic tank is made of galvanized steel materials, and is in a high-pressure state for a long time, so that the medium quality of a product is required to be good, the service life of the product is prolonged, and damage is avoided.
(2) When the straight gear is closest to the sealing plate, the internal pressure is the largest, if the tea leaves deform, the sealing performance of the tea leaves cannot meet the requirement, and similarly, the tea leaves can be obtained, when the tea leaves are pressurized, the interior of the tea leaves does not deform, and the sealing performance of the tea leaves can meet the requirement.
(3) Because the device does not need liquid to verify as the medium, has improved the quality of tealeaves to improve the efficiency that detects, saved the manual work, reached and carried out the purpose that the number detected fast to the leakproofness of tealeaves.
Drawings
Fig. 1 is a schematic view of the rapid detection device for the sealing performance of the bagged tea of the utility model.
Fig. 2 is a sectional view of the rapid detection device for the sealing performance of the bagged tea of the utility model.
Fig. 3 is a partial view of the rapid detection device for the sealing performance of the bagged tea of the utility model.
In the figure, 1-hydraulic tank, 2-sealing ring, 3-supporting plate, 4-supporting rod, 5-straight gear, 6-sealing plate, 7-spur gear, 8-motor, 9-inlet sealing sheet, 10-side cover, 11-rotor fixing piece, 12-hydraulic fixing piece, and 13-bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1-3 of the present invention, and it should be apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The sealing device comprises a hydraulic tank 1, a sealing ring 2, a supporting plate 3, a supporting rod 4, a straight gear 5, a sealing plate 6, a spur gear 7, a motor 8, an inlet sealing sheet 9, a side cover 10, a rotor fixing piece 11 and a hydraulic fixing piece 12;
wherein a square hole is arranged on the cambered surface of the hydraulic tank 1, the side cover 10 is detachably arranged on the square hole in a sealing manner, an inlet sealing sheet 9 is fixedly bonded on the inner wall of the side cover 10, the inner wall surface of the inlet sealing sheet 9 is matched with the inner wall surface of the hydraulic tank 1,
wherein one end of the hydraulic tank 1 is matched and concentrically arranged with the sealing plate 6, the hydraulic tank 1 is detachably connected with the sealing plate 6 for the part where the hydraulic tank 1 is contacted with the sealing plate 6,
wherein the sealing plate 6 is matched and concentrically arranged with the support rod 4, the sealing plate 6 is slidably connected with the support rod 4 for the part of the sealing plate 6, which is abutted against the support rod 4,
a through hole is arranged in the center of the sealing plate 6, one end of the supporting rod 4 penetrates through the sealing plate 6 and goes deep into the hydraulic tank 1, the other end of the supporting rod 4 is arranged outside the hydraulic tank 1,
wherein one end of the support rod 4 is matched and concentrically arranged with the support plate 3, the support rod 4 is fixedly connected with the support plate 3 for the part of the support rod 4 which is abutted against the support plate 3,
wherein the edge of the supporting plate 3 is fixedly provided with a circle of sealing ring 2, the supporting plate 3 is detachably connected with the sealing ring 2 for the part of the supporting plate 3 which is abutted against the sealing ring 2, the supporting plate 3 is connected with the hydraulic tank 1 in a sliding and sealing way through the sealing ring 2,
wherein the top of the hydraulic fixing piece 12 is provided with a hydraulic tank 1, for the part of the hydraulic fixing piece 12 which is contacted with the hydraulic tank 1, the hydraulic fixing piece 12 is fixedly connected with the hydraulic tank 1,
wherein the other end of the supporting rod 4 is provided with a through hole, the through hole of the supporting rod 4 is matched with the through hole at one end of the straight gear 5, the supporting rod 4 and the straight gear 5 can be fixedly connected for the part of the supporting rod 4 which is abutted against the straight gear 5,
the other end of the straight gear 5 is arranged in a tangent way with the spur gear 7, for the part where the straight gear 5 is contacted with the spur gear 7, the straight gear 5 is rotatablely connected with the spur gear 7,
wherein the spur gear 7 is matched and concentrically and fixedly connected with a rotating output shaft of a motor 8,
the top of the rotor fixing member 11 is provided with a motor 8, and for the part of the rotor fixing member 11, which is against the motor 8, the rotor fixing member 11 is fixedly connected with the motor 8.
As shown in fig. 1-3, a rotor fixing member 11 and a hydraulic fixing member 12 are fixedly arranged on the top of a bottom plate 13, a hydraulic tank 1 is fixedly bonded on the top of the hydraulic fixing member 12, a side cover 10 is detachably connected on a side wall hole of the hydraulic tank 1, an inlet sealing sheet 9 is fixedly bonded on the inner wall of the side cover 10, a support plate 3 is arranged inside the hydraulic tank 1, a sealing ring 2 is fixedly bonded on the outer wall of the support plate 3, the outer wall of the sealing ring 2 is in interference fit with the inner wall of the hydraulic tank 1, a support rod 4 is fixedly bonded on one side of the support plate 3, a through hole is arranged in the middle of the sealing plate 6 and is adapted to the support rod 4, the other end of the support rod 4 extends out of the hydraulic tank 1 and is adapted to one end of a spur gear 5, the spur gear 5 is tangent to the edge of a spur gear 7, a motor 8 is fixedly bonded, when the utility model is needed to be used, the side cover 10 is opened, the object to be detected is put into the side cover 10, the side cover 10 is closed, the motor 8 is started, the motor 8 drives the spur gear 7 to rotate, because the other end of the spur gear 5 is fixed on the spur gear and drives the spur gear 5 to move, the spur gear 5 is connected with the support rod 4, because the support rod 4 can only do left-right reciprocating motion, meanwhile, the inside of the hydraulic tank 1 is provided with the sealing ring 2, the support plate 3 and the inlet sealing sheet 9 carry out sealing treatment to the inside, when the spur gear 5 is nearest to the sealing plate 6, the internal pressure is maximum, if the tea leaves are deformed, the sealing performance and the requirement can not be met, the same principle can be obtained, when the tea leaves are pressurized, the inside is not deformed, the sealing performance of the package can meet the requirement, because the device does not need liquid as, and the efficiency of detection has been improved, has saved the manual work, has reached the purpose that carries out the number of fast detections to the leakproofness of tealeaves.
Further, a bottom plate 13 is included;
wherein be provided with hydraulic pressure mounting 12 on the bottom plate 13, to the part that bottom plate 13 and hydraulic pressure mounting 12 are inconsistent, bottom plate 13 and hydraulic pressure mounting 12 fixed connection avoid the machine to take place to remove, lead to personnel's injury.
Further, the rotor fixing member 11 is disposed on the bottom plate 13, and the bottom plate 13 is fixedly connected to the rotor fixing member 11 for a portion where the bottom plate 13 abuts against the rotor fixing member 11.
Furthermore, the support rod 4 is rotatably connected with the spur gear 5 through a screw and a nut to fix the spur gear, so that the whole machine can run completely.
Furthermore, UV curing agents are adopted for bonding between the hydraulic fixing part 12 and the hydraulic tank 1 and between the rotor fixing part 11 and the motor 8, so that the machine is stable on the rotor fixing part 11 and is prevented from falling.
Furthermore, the sealing ring 2 and the inlet sealing sheet 9 are made of nitrile rubber materials, so that the inner wall can be completely attached, no gap is reserved, and the internal pressure is stabilized.
Furthermore, the hydraulic tank 1 is made of galvanized steel materials, and is in a high-pressure state for a long time, so that the medium quality of a product is required to be good, the service life of the product is prolonged, and damage is avoided.
Furthermore, the bottom plate 13 is made of aluminum alloy materials, the bottom of the bottom plate is in contact with the floor for a long time, the bottom plate is easy to wear, and the service life of the bottom plate is prolonged.
In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (8)
1. Quick detection equipment for sealing performance of bagged tea is characterized by comprising a hydraulic tank (1), a sealing ring (2), a supporting plate (3), a supporting rod (4), a straight gear (5), a sealing plate (6), a spur gear (7), a motor (8), an inlet sealing sheet (9), a side cover (10), a rotor fixing piece (11) and a hydraulic fixing piece (12);
wherein a square hole is arranged on the cambered surface of the hydraulic tank (1), the side cover (10) is detachably and hermetically arranged on the square hole, an inlet sealing sheet (9) is fixedly bonded on the inner wall of the side cover (10), the inner wall surface of the inlet sealing sheet (9) is matched with the inner wall surface of the hydraulic tank (1),
wherein one end of the hydraulic tank (1) is matched and concentrically arranged with the sealing plate (6), the hydraulic tank (1) is detachably connected with the sealing plate (6) for the part of the hydraulic tank (1) which is abutted against the sealing plate (6),
wherein the sealing plate (6) and the support rod (4) are arranged concentrically in a matching way, the sealing plate (6) and the support rod (4) can be connected in a sliding way for the part where the sealing plate (6) is abutted against the support rod (4),
a through hole is arranged in the center of the sealing plate (6), one end of the supporting rod (4) penetrates through the sealing plate (6) and goes deep into the hydraulic tank (1), the other end of the supporting rod (4) is arranged outside the hydraulic tank (1),
wherein one end of the supporting rod (4) is matched and concentrically arranged with the supporting plate (3), the supporting rod (4) is fixedly connected with the supporting plate (3) for the part of the supporting rod (4) which is pressed against the supporting plate (3),
wherein the edge of the supporting plate (3) is fixedly provided with a circle of sealing ring (2), the supporting plate (3) and the sealing ring (2) are detachably connected for the part of the supporting plate (3) which is abutted against the sealing ring (2), the supporting plate (3) is connected with the hydraulic tank (1) in a sliding and sealing way through the sealing ring (2),
wherein the top of the hydraulic fixing piece (12) is provided with a hydraulic tank (1), the hydraulic fixing piece (12) is fixedly connected with the hydraulic tank (1) for the part of the hydraulic fixing piece (12) which is pressed against the hydraulic tank (1),
wherein the other end of the supporting rod (4) is provided with a through hole, the through hole of the supporting rod (4) is matched with the through hole at one end of the straight gear (5), for the part of the supporting rod (4) which is abutted against the straight gear (5), the supporting rod (4) is fixedly connected with the straight gear (5),
the other end of the straight gear (5) is arranged in a tangent way with the spur gear (7), for the part of the straight gear (5) which is pressed against the spur gear (7), the straight gear (5) is rotatably connected with the spur gear (7),
wherein the spur gear (7) is matched with a rotating output shaft of the motor (8) and is concentrically and fixedly connected,
the motor (8) is arranged at the top of the rotor fixing piece (11), and the rotor fixing piece (11) is fixedly connected with the motor (8) for the part of the rotor fixing piece (11) which is abutted against the motor (8).
2. A rapid test apparatus for the sealability of a teabag according to claim 1 characterized by comprising a bottom plate (13);
the bottom plate (13) is provided with a hydraulic fixing piece (12), and the bottom plate (13) is fixedly connected with the hydraulic fixing piece (12) for the part of the bottom plate (13) which is abutted against the hydraulic fixing piece (12).
3. The apparatus for rapidly testing the sealing performance of bagged tea as claimed in claim 2, wherein the bottom plate (13) is provided with a rotor fixing member (11), and the bottom plate (13) is fixedly connected with the rotor fixing member (11) for the portion of the bottom plate (13) abutting against the rotor fixing member (11).
4. The rapid detection device for the sealing performance of the bagged tea leaves as claimed in claim 1, wherein the support rod (4) is rotatably connected with the spur gear of the spur gear (5) by a screw and a nut.
5. The rapid detection equipment for the sealing performance of the bagged tea leaves as claimed in claim 1, wherein UV curing agents are adopted for bonding between the hydraulic fixing piece (12) and the hydraulic tank (1) and between the rotor fixing piece (11) and the motor (8).
6. The rapid detection equipment for the sealing performance of the bagged tea leaves as claimed in claim 1, wherein the sealing ring (2) and the inlet sealing sheet (9) are made of nitrile rubber.
7. The rapid detection equipment for the sealing performance of the bagged tea leaves as claimed in claim 1, wherein the hydraulic tank (1) is made of galvanized steel.
8. The apparatus for rapidly testing the sealing performance of bagged tea as claimed in claim 1, wherein the bottom plate (13) is made of aluminum alloy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021125673.7U CN212363595U (en) | 2020-06-17 | 2020-06-17 | Quick check out test set of tealeaves sealing performance in bags |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202021125673.7U CN212363595U (en) | 2020-06-17 | 2020-06-17 | Quick check out test set of tealeaves sealing performance in bags |
Publications (1)
Publication Number | Publication Date |
---|---|
CN212363595U true CN212363595U (en) | 2021-01-15 |
Family
ID=74150287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202021125673.7U Expired - Fee Related CN212363595U (en) | 2020-06-17 | 2020-06-17 | Quick check out test set of tealeaves sealing performance in bags |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN212363595U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
-
2020
- 2020-06-17 CN CN202021125673.7U patent/CN212363595U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
CN113758638B (en) * | 2021-10-12 | 2022-07-29 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN212363595U (en) | Quick check out test set of tealeaves sealing performance in bags | |
CN207472500U (en) | A kind of gas leak detection device of food pack | |
CN110044552B (en) | Powder-liquid double-chamber bag aluminum film welding leak detection device | |
CN112461461A (en) | Building exterior window air tightness detection device | |
CN110702334A (en) | Device and method for detecting sealing performance of electronic product | |
CN2539021Y (en) | Leakage-preventing flange sealer | |
CN209639919U (en) | A kind of packaging bag gas leakage electronic type detection device | |
CN114894409A (en) | Elastic cord elasticity detection device based on thing networking | |
CN109724757A (en) | A kind of air tightness detecting device of engine cylinder head and its detection method | |
CN214121504U (en) | Rotation type leak hunting device | |
CN213714645U (en) | Detection device for detecting food package tightness | |
CN213516252U (en) | Be used for packing product gas tightness test platform | |
CN211519972U (en) | Convenient aluminum powder packaging bag vacuumizing equipment | |
CN208313949U (en) | A kind of device for detecting safety of foods | |
CN210464838U (en) | Airtight detection device of product of single chip microcomputer control | |
CN209542025U (en) | A kind of device for testing pump chamber air-tightness | |
CN209720103U (en) | A kind of improved colewort vacuum packaging equipment | |
CN218297534U (en) | Box body sealing detection equipment | |
CN208559864U (en) | A kind of pigment production automatic vaccum packager | |
CN211927195U (en) | Detection device for detecting airtight effect of tea packaging bag | |
CN109870277A (en) | A kind of device for testing pump chamber air-tightness | |
CN215767527U (en) | Facial mask packing leakproofness tester | |
CN202149840U (en) | Leakage testing device used for powdered milk package | |
CN211042591U (en) | Airtight detecting system | |
CN221056004U (en) | Aseptic aluminum barrel gas tightness detection device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |