CN111115132A - A suspension type conveying equipment for pyrotechnic composition - Google Patents

A suspension type conveying equipment for pyrotechnic composition Download PDF

Info

Publication number
CN111115132A
CN111115132A CN201811282542.7A CN201811282542A CN111115132A CN 111115132 A CN111115132 A CN 111115132A CN 201811282542 A CN201811282542 A CN 201811282542A CN 111115132 A CN111115132 A CN 111115132A
Authority
CN
China
Prior art keywords
frame
box body
pin shaft
rod
guide plate
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.)
Granted
Application number
CN201811282542.7A
Other languages
Chinese (zh)
Other versions
CN111115132B (en
Inventor
胡胜雨
李云鹏
张威
赵洪星
于永平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Siasun Robot and Automation Co Ltd
Original Assignee
Shenyang Siasun Robot and Automation Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenyang Siasun Robot and Automation Co Ltd filed Critical Shenyang Siasun Robot and Automation Co Ltd
Priority to CN201811282542.7A priority Critical patent/CN111115132B/en
Publication of CN111115132A publication Critical patent/CN111115132A/en
Application granted granted Critical
Publication of CN111115132B publication Critical patent/CN111115132B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G35/00Mechanical conveyors not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34Devices for discharging articles or materials from conveyor 
    • B65G47/38Devices for discharging articles or materials from conveyor  by dumping, tripping, or releasing load carriers
    • B65G47/40Devices for discharging articles or materials from conveyor  by dumping, tripping, or releasing load carriers by tilting conveyor buckets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/30Manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Handcart (AREA)

Abstract

The invention relates to the field of firework production, in particular to a suspension type conveying device for pyrotechnic composition, wherein a walking frame is driven by a traction mechanism to walk along a suspension rail, a box body is arranged at the lower side of the walking frame, a tipping bucket is arranged in the box body, a moving frame is arranged on the box body, a rack is arranged on the moving frame, a gear matched with the rack is arranged on a rotating shaft of the tipping bucket, a lifting pin shaft frame is arranged on a side lever of the moving frame positioned outside the box body, a pin shaft is arranged on the pin shaft frame, a pin hole seat is arranged on the outer wall of the box body, a guide plate is arranged at the lower end of the pin shaft frame, a slot plate is arranged at the lower side of the guide plate, the pin shaft is inserted on the pin hole seat during transportation, one end of the pin shaft frame which is upwards tilted through the guide plate slides up relative to a power shaft of a turnover driving device when smoke is dumped, the movable frame is driven to move by the overturning driving device. The invention can automatically transmit and put pyrotechnic composition, thereby improving the production efficiency.

Description

A suspension type conveying equipment for pyrotechnic composition
Technical Field
The invention relates to the field of firework production, in particular to a suspension type conveying device for pyrotechnic composition.
Background
Among the prior art, required pyrotechnic composition mostly relies on the manual work to put in the fireworks inner tube in fireworks trade production process, workman intensity of labour is great, work is dull and dry single, it is a huge examination to get off for a long time to workman's physical power, production efficiency is difficult to improve, manual handling fireworks and put in gunpowder to the fireworks inner tube have higher danger moreover, the workman appears the maloperation easily at frequent transport and put in the in-process and leads to the production accident to take place, seriously threatens staff's personal safety.
Disclosure of Invention
The invention aims to provide suspension type conveying equipment for pyrotechnic compositions, which can realize automatic conveying and pyrotechnic composition feeding and greatly improve the production efficiency.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a suspension type conveying equipment for pyrotechnic composition, includes suspension track, drive mechanism, walking frame, box, tipping bucket, removes frame, round pin pedestal and upset drive arrangement, and the walking frame passes through drive mechanism and walks along suspension track, and walking frame downside is equipped with the box, be equipped with the tipping bucket in the box, remove the movably setting on the box of frame, just be equipped with the rack on removing the frame, be equipped with in the tipping bucket pivot with rack complex gear removes the frame and is equipped with the round pin pedestal of liftable on being located the outside side lever of box be equipped with round pin axle on the round pin pedestal be equipped with on the box outer wall with round pin axle complex round pin hole seat round pin axle frame the round pin axle frame lower extreme is equipped with the deflector that one end perk upwards the deflector downside is equipped with the draw-in groove board, during the transportation round pin cartridge is in the pinhole on the pinhole seat, when empting pyrotechnic composition, round pin axle frame passes through the one end that the deflector perk upwards perk is relative slip and upset drive arrangement And after the power shaft of the turnover driving device is lifted up and embedded with the clamping groove plate, the pin shaft is separated from the pin hole seat, and the movable frame is driven to move in a telescopic mode through the power shaft of the turnover driving device.
The pin shaft frame comprises a top plate, a guide rod and a guide plate, the top plate is arranged on the upper side of a side rod of the movable frame, the guide plate is arranged on the lower side of the side rod, the top plate is connected with the guide plate through the guide rod, the guide rod penetrates through the side rod, and the pin shaft is arranged on the lower side of the top plate.
The movable frame comprises a movable rod and a side rod, wherein the movable rod is connected with a bottom plate of the box body in a sliding mode, a rack is arranged on the movable rod, and the side rod is arranged outside the box body and is fixedly connected with the movable rod vertically.
The movable rod is perpendicular to the tipping bucket rotating shaft, and the side rod is parallel to the tipping bucket rotating shaft.
The lower side of the moving rod is provided with a sliding block, and a sliding rail matched with the sliding block is arranged on a bottom plate of the box body.
A plurality of support plates are arranged on the upper side of the walking frame, and each support plate is provided with a walking wheel which rolls in a hanging track on the corresponding side.
The traction mechanism is provided with a traction rope, and the walking frame is driven to walk through the traction rope.
The invention has the advantages and positive effects that:
1. the automatic pyrotechnic composition feeding device can realize automatic transmission and pyrotechnic composition feeding, ensures the consistency of pyrotechnic composition feeding, avoids uncertainty of manual pyrotechnic composition feeding, does not need manual operation in the whole pyrotechnic composition conveying process, and greatly improves the feeding speed and the production efficiency of the pyrotechnic composition.
2. The invention adopts the suspended track mode for transportation, improves the transportation speed, is not influenced by the ground environment, and can be applied to complex terrain environments.
3. The side lever of the moving frame is arranged outside the box body, so that the tipping bucket is separated from action executing mechanisms such as a pin shaft frame, a turnover driving device and the like, and the safety is improved.
Drawings
Figure 1 is a schematic structural view of the present invention,
figure 2 is an enlarged view at a in figure 1,
figure 3 is an enlarged view at B in figure 1,
fig. 4 is a schematic view showing a first working state of the pin shaft seat in fig. 1,
fig. 5 is a schematic diagram of a second working state of the pin shaft seat in fig. 1.
The device comprises a suspension rail 1, a traction rope 2, a walking frame 3, a supporting plate 301, a walking wheel 302, a box body 4, a tipping bucket 5, a gear 6, a moving frame 7, a moving rod 701, a side rod 702, a rack 8, a sliding rail 9, a clamping groove plate 10, a guide plate 11, a pin hole seat 12, a pin shaft 13, a sliding block 14, a top plate 15, a guide rod 16 and a power shaft 17, wherein the traction rope 2, the walking frame 301, the supporting plate 302, the box body, the tipping bucket 5, the gear 6, the moving frame 7, the side rod 702, the.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present invention includes a suspension rail 1, a traction mechanism, a traveling frame 3, a box body 4, a dump bucket 5, a moving frame 7, a pin shaft frame and a turning driving device, wherein the suspension rail 1 is disposed above the traveling frame 3, the traveling frame 3 is driven by the traction mechanism to travel along the suspension rail 1, the box body 4 is disposed at the lower side of the traveling frame 3, the dump bucket 5 is disposed in the box body 4, a rotating shaft of the dump bucket 5 is rotatably disposed in the box body 4, a gear 6 is disposed on the rotating shaft, the moving frame 7 includes a moving rod 701 and a side lever 702, wherein the moving rod 701 is perpendicular to the rotating shaft of the dump bucket 5 and is slidably connected to a bottom plate of the box body 4, a rack 8 engaged with the gear 6 is disposed on the moving rod 701, the side lever 702 is disposed outside the box body 4 and is parallel to the rotating shaft, the pin shaft frame capable of lifting and, the upper end of the pin shaft frame is provided with a pin shaft 13, the outer wall of the box body 4 is provided with a pin hole seat 12 matched with the pin shaft 13, the lower end of the pin shaft frame is provided with a guide plate 11 with one end tilted upwards, and the lower side of the guide plate 11 is provided with a slot clamping plate 10. As shown in fig. 4 to 5, during operation of the equipment, during transportation, the pin shaft 13 at the upper end of the pin shaft frame is inserted into the pin hole of the pin hole seat 12 all the time to prevent the moving frame 7 from moving to drive the tipping bucket 5 loaded with pyrotechnic composition to tip, after the lower side of the upward-warped end of the guide plate 11 contacts with the power shaft 17 of the tipping drive device, the upward-warped end of the guide plate 11 slides relative to the power shaft 17 as the box body 4 continues to move forward, so that the pin shaft frame is lifted up under the action of the power shaft 17 to separate the pin shaft 13 from the pin hole seat 12, the pin shaft frame can move laterally along with the moving frame 7, as the box body 4 continues to move, after the slot on the slot plate 10 is embedded with the power shaft 17 of the tipping drive device, the box body 4 arrives at the station for tipping pyrotechnic composition, the box body 4 stops moving, at this time, the moving frame 7 extends out through the shaft 17 of the tipping drive device to drive along a direction perpendicular to the suspension rail When the firework barrel moves along the direction 1, the rack 8 on the moving rod 701 moves to drive the gear 6 to turn over, so that the tipping bucket 5 is driven to turn over, and pyrotechnic compositions in the tipping bucket 5 are thrown into the firework inner barrel. In this embodiment, the turnover driving device is an air cylinder.
As shown in fig. 1, the traction mechanism is provided with a traction rope 2, and the walking frame 3 is driven by the traction rope 2 to circularly move among different stations. In this embodiment, drive mechanism includes that two set up respectively in the cylinder at suspension track 1 both ends, and 2 both ends of haulage rope twine respectively on the cylinder of both sides, the cylinder passes through motor drive, and cylinder forward and reverse rotation drives haulage rope 2 reciprocating motion promptly. Such traction mechanisms are well known in the art.
As shown in fig. 1 and 3, a plurality of support plates 301 are provided on the upper side of the walking frame 3, and each support plate 301 is provided with a walking wheel 302 which rolls in the suspension rail 1 on the corresponding side.
As shown in fig. 4 to 5, the pin shaft frame includes a top plate 15, a guide bar 16 and a guide plate 11, the top plate 15 is disposed on the upper side of a side bar 702 of the movable frame 7, the guide plate 11 is disposed on the lower side of the side bar 702, two ends of the top plate 15 are respectively connected to the guide plate 11 through the guide bar 16, each guide bar 16 penetrates through the side bar 702, and the pin shaft 13 is disposed on the lower side of the top plate 15. When the mechanism works, the guide plate 11 drives the top plate 15 to ascend through the guide rod 16, and then the pin shaft 13 is separated from the pin hole seat 12.
As shown in fig. 1 and fig. 4 to 5, the movable rack 7 is of a concave shape, and includes a movable rod 701 on both sides and a side rod 702 connecting the two movable rods 701, a through hole for the movable rod 701 to pass through is provided on the box 4, and when the side rod 702 is driven by the power shaft 17 of the turnover driving device to move in a direction perpendicular to the hanging rail 1, the side rod 702 drives the movable rod 701 to slide along the bottom plate of the box 4.
As shown in fig. 2, a slider 14 is provided under the moving rod 701, and a slide rail 9 engaged with the slider 14 is provided on the bottom plate of the case 4.
The working principle of the invention is as follows:
when the invention works, the walking frame 3 is driven by the traction mechanism to walk along the suspension track 1, and in the transportation process, the pin shaft 13 at the upper end of the pin shaft frame is inserted into the pin hole on the pin hole seat 12 all the time to prevent the moving frame 7 from moving to drive the tipping bucket 5 filled with pyrotechnic compositions to tip over, after the walking frame 3 moves to a pyrotechnic composition tipping station, the lower side of the upward-warped end of the guide plate 11 is firstly contacted with the power shaft 17 of the tipping drive device, and the pin shaft frame is lifted up under the action of the power shaft 17 along with the continuous forward movement of the box body 4, so that the pin shaft 13 is separated from the pin hole seat 12, at the moment, the pin shaft frame can move transversely along with the moving frame 7, the box body 4 continues to move, after the clamping groove on the clamping groove plate 10 is embedded with the power shaft 17 of the tipping drive device, the box body 4 stops moving, and the moving frame 7 extends out through the power shaft 17 of the tipping drive device to drive the moving frame 7 to move outwards along the At the moment, the rack 8 on the movable frame 7 also moves along with the movable frame and drives the gear 6 at the end part of the rotating shaft of the tipping bucket 5 to rotate, so that the tipping bucket 5 is driven to overturn, pyrotechnic composition in the tipping bucket 5 is thrown into the firework inner cylinder, after the throwing is finished, the power shaft 17 of the overturning driving device retracts to enable the tipping bucket 5 to recover to the original position, then the walking frame 3 retreats to be separated from the power shaft 17 of the overturning driving device, and in the retreating process, the pin shaft frame descends under the action of gravity, so that the pin shaft 13 is inserted into the pin hole seat 12 again.

Claims (7)

1. A suspension conveyor apparatus for pyrotechnic compositions, characterized by: comprises a suspension track (1), a traction mechanism, a walking frame (3), a box body (4), a tipping bucket (5), a moving frame (7), a pin shaft frame and a turnover driving device, wherein the walking frame (3) is driven by the traction mechanism to walk along the suspension track (1), the box body (4) is arranged at the lower side of the walking frame (3), the tipping bucket (5) is arranged in the box body (4), the moving frame (7) is movably arranged on the box body (4), a rack (8) is arranged on the moving frame (7), a gear (6) matched with the rack (8) is arranged on a rotating shaft of the tipping bucket (5), the pin shaft frame capable of lifting is arranged on a side lever (702) of the moving frame (7) positioned outside the box body (4), a pin shaft (13) is arranged on the pin shaft frame, a pin hole seat (12) matched with the pin shaft (13) is arranged on the outer wall of the box body (4), a guide plate (11) with one end tilting upwards is arranged at the lower end of, the lower side of the guide plate (11) is provided with a slot plate (10), a pin shaft (13) is inserted into a pin hole in the pin hole seat (12) during transportation, when pyrotechnic compositions are dumped, the pin shaft frame is lifted up through the relative sliding of the upward warped end of the guide plate (11) and a power shaft (17) of a turnover driving device, and after the power shaft (17) of the turnover driving device is embedded with the slot plate (10), the pin shaft (13) is separated from the pin hole seat (12) and the movable frame (7) is driven to move in a telescopic mode through the power shaft (17) of the turnover driving device.
2. The overhead transport equipment for pyrotechnic compositions as claimed in claim 1 wherein: the pin shaft frame comprises a top plate (15), a guide rod (16) and a guide plate (11), the top plate (15) is arranged on the upper side of a side rod (702) of the movable frame (7), the guide plate (11) is arranged on the lower side of the side rod (702), the top plate (15) is connected with the guide plate (11) through the guide rod (16), the guide rod (16) penetrates through the side rod (702), and the pin shaft (13) is arranged on the lower side of the top plate (15).
3. The overhead transport equipment for pyrotechnic compositions as claimed in claim 1 wherein: the movable frame (7) comprises a movable rod (701) and a side rod (702), wherein the movable rod (701) is connected with a bottom plate of the box body (4) in a sliding mode, a rack (8) is arranged on the movable rod (701), and the side rod (702) is arranged outside the box body (4) and is vertically fixedly connected with the movable rod (701).
4. The overhead transport equipment for pyrotechnic compositions as claimed in claim 3 wherein: the moving rod (701) is perpendicular to the rotating shaft of the tipping bucket (5), and the side rod (702) is parallel to the rotating shaft of the tipping bucket (5).
5. The overhead transport equipment for pyrotechnic compositions as claimed in claim 3 wherein: a sliding block (14) is arranged on the lower side of the moving rod (701), and a sliding rail (9) matched with the sliding block (14) is arranged on the bottom plate of the box body (4).
6. The overhead transport equipment for pyrotechnic compositions as claimed in claim 1 wherein: a plurality of support plates (301) are arranged on the upper side of the walking frame (3), and a walking wheel (302) is arranged on each support plate (301) and rolls in the suspension track (1) on the corresponding side.
7. The overhead transport equipment for pyrotechnic compositions as claimed in claim 1 wherein: the traction mechanism is provided with a traction rope (2), and the walking frame (3) is driven to walk through the traction rope (2).
CN201811282542.7A 2018-10-31 2018-10-31 A suspension type conveying equipment for pyrotechnic composition Expired - Fee Related CN111115132B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811282542.7A CN111115132B (en) 2018-10-31 2018-10-31 A suspension type conveying equipment for pyrotechnic composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811282542.7A CN111115132B (en) 2018-10-31 2018-10-31 A suspension type conveying equipment for pyrotechnic composition

Publications (2)

Publication Number Publication Date
CN111115132A true CN111115132A (en) 2020-05-08
CN111115132B CN111115132B (en) 2021-06-01

Family

ID=70485001

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811282542.7A Expired - Fee Related CN111115132B (en) 2018-10-31 2018-10-31 A suspension type conveying equipment for pyrotechnic composition

Country Status (1)

Country Link
CN (1) CN111115132B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112849820A (en) * 2021-04-19 2021-05-28 常州柯勒玛智能装备有限公司 Dry garbage collection equipment and dry garbage collection station
CN115571576A (en) * 2022-12-08 2023-01-06 盘化(济南)化工有限公司 Expanded explosive top-hanging rail type conveying system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719221A (en) * 1980-07-09 1982-02-01 Maki Seisakusho:Kk Classifying bucket for fruit, vegetables and the like
CN86207278U (en) * 1986-09-23 1988-02-10 梅家昌 New-type mine car with tipping platform and unloading device
CN1033604A (en) * 1987-10-30 1989-07-05 菲吉国际有限公司 Improved sortation conveyor
CN101125610A (en) * 2007-09-11 2008-02-20 王树生 Asynchronous type suspension conveyor
CN202245171U (en) * 2011-08-10 2012-05-30 尹术超 Single-piece flow beat hanging system
CN202320939U (en) * 2011-11-25 2012-07-11 陈世敏 Hanging type automatic bag opening, emptying and unloading device for mail bag sorting
CN206286550U (en) * 2016-12-16 2017-06-30 新乡市广达机械制造有限公司 Comprehensive casting pouring machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719221A (en) * 1980-07-09 1982-02-01 Maki Seisakusho:Kk Classifying bucket for fruit, vegetables and the like
CN86207278U (en) * 1986-09-23 1988-02-10 梅家昌 New-type mine car with tipping platform and unloading device
CN1033604A (en) * 1987-10-30 1989-07-05 菲吉国际有限公司 Improved sortation conveyor
CN101125610A (en) * 2007-09-11 2008-02-20 王树生 Asynchronous type suspension conveyor
CN202245171U (en) * 2011-08-10 2012-05-30 尹术超 Single-piece flow beat hanging system
CN202320939U (en) * 2011-11-25 2012-07-11 陈世敏 Hanging type automatic bag opening, emptying and unloading device for mail bag sorting
CN206286550U (en) * 2016-12-16 2017-06-30 新乡市广达机械制造有限公司 Comprehensive casting pouring machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112849820A (en) * 2021-04-19 2021-05-28 常州柯勒玛智能装备有限公司 Dry garbage collection equipment and dry garbage collection station
CN112849820B (en) * 2021-04-19 2022-05-13 常州柯勒玛智能装备有限公司 Dry garbage collection equipment and dry garbage collection station
CN115571576A (en) * 2022-12-08 2023-01-06 盘化(济南)化工有限公司 Expanded explosive top-hanging rail type conveying system
CN115571576B (en) * 2022-12-08 2023-02-07 盘化(济南)化工有限公司 Expanded explosive top-hanging rail type conveying system

Also Published As

Publication number Publication date
CN111115132B (en) 2021-06-01

Similar Documents

Publication Publication Date Title
CN111115132B (en) A suspension type conveying equipment for pyrotechnic composition
CN107089526B (en) Bagged cement unmanned loading system and using method thereof
CN205838045U (en) A kind of hydraulic lifting tipper
CN206969490U (en) Blanking device after a kind of steel profile ball blast
CN114516551B (en) Transportation device for mining
CN101554897A (en) Multifunctional transport cart with self-assembly and disassembly rubber wheels for mining
CN202926250U (en) Elevator opening and closing device for mechanical remedial work well site rod and pipe lifting
CN103692547B (en) Automatically remove the aerated concrete equipment overturning platform capable of green brick waste
CN111268364B (en) Steel ball loading device for ball mill barrel
CN104985165A (en) Casting overturning device
CN116040477B (en) Crane for automatic oxidation workshop
CN208516265U (en) A kind of lifting conveying device for molding powder production
CN208022371U (en) A kind of automatic transloading equipment of spinning cake
CN104071060A (en) Translation dumper
CN207792125U (en) A kind of casting mechanism for sorting
CN110637572A (en) Automatic transplanting device of young seedling
CN211029659U (en) Automatic feeding and discharging mechanism with double tracks for shot blasting machine
CN203946002U (en) A kind of translation dumping car
CN108298308A (en) A kind of automatic transloading equipment of spinning cake
CN206013616U (en) A kind of toothed track formula grain strikes off delivery device
CN213933163U (en) Gantry type sample machine with automatic vehicle type recognition function
CN107235302A (en) A kind of storage system for aerial conveying line body
CN210479983U (en) Special automatic lifting device for environment-friendly hollow bricks of building decoration materials
CN213676848U (en) Transverse quick moving device for conveyor
CN106181547A (en) Feeding mechanical hand and ball blast shear loading and unloading automatic system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210601

CF01 Termination of patent right due to non-payment of annual fee