CN217151155U - Movable bearing device for high-altitude construction based on steel structure - Google Patents
Movable bearing device for high-altitude construction based on steel structure Download PDFInfo
- Publication number
- CN217151155U CN217151155U CN202220149455.XU CN202220149455U CN217151155U CN 217151155 U CN217151155 U CN 217151155U CN 202220149455 U CN202220149455 U CN 202220149455U CN 217151155 U CN217151155 U CN 217151155U
- Authority
- CN
- China
- Prior art keywords
- arm
- cross arm
- adjusting
- auxiliary
- cross
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 83
- 239000010959 steel Substances 0.000 title claims abstract description 83
- 238000010276 construction Methods 0.000 title claims abstract description 48
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000004035 construction material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model relates to a building construction appurtenance technical field, concretely relates to portable load-bearing device is used in high altitude construction based on steel construction, including the hanging flower basket to and be used for the motion connecting device with the hanging flower basket installation, the motion connecting device includes strutting arrangement and mobile device, strutting arrangement includes the cross arm of being connected with the hanging flower basket, and adjusts the arm, the one end of adjusting the arm is connected with the fixed arm, be provided with the cross arm hole that runs through the cross arm horizontal direction on the cross arm, be provided with the regulation hole that runs through the regulation arm on adjusting the arm, the regulation hole corresponds the setting with the cross arm hole, be provided with the fixing bolt that runs through both in cross arm hole and the regulation hole; the moving device comprises an auxiliary arm connected to the outer side of the cross arm and a moving roller which is installed on the auxiliary arm and is in sliding connection with the steel structure, the cross arm and the adjusting arm are connected together by using bolts to penetrate through cross arm holes and adjusting holes in the cross arm and the adjusting arm, and the connection is more stable through the structure of the holes and bolts.
Description
Technical Field
The utility model relates to a construction appurtenance technical field, specificly relate to a device is born with portable to high altitude construction based on steel construction.
Background
The steel structure has high strength, light dead weight, good integral rigidity and strong deformation resistance, so the steel structure is particularly suitable for building large-span, ultrahigh and overweight buildings.
The installation of steel construction uses welding, bolted connection as the main form, and the installation in-process high altitude construction is more, and the tie point is mostly in high altitude construction, needs long-time, frequent high altitude removal operation. In actual construction, overhead operation usually adopts the modes of lifting cars, steel bar self-made hanging baskets, hanging and leaning and the like. Both of the two modes have disadvantages that the lift truck is convenient to move, but the renting and purchasing costs are high; the reinforcing bar self-control hanging flower basket, low cost, it is inconvenient nevertheless to remove, changes welding position welder at every turn and need climb out the hanging flower basket, carries and draws the hanging flower basket to remove, even high altitude construction wears the safety belt and still has certain risk, and the hanging flower basket size need be done according to steel structural member size is not fixed to order, need make multiple size hanging flower basket when steel structural member size differs, extravagant material.
The invention patent 202010614652.X discloses an adjustable hanging basket for a steel beam and a construction method thereof, wherein the hanging basket comprises a hanging frame sleeved on the steel beam, an included angle corresponding to the corresponding edge of the steel beam is formed at the top of the hanging frame, a supporting piece which is obliquely positioned in the corresponding included angle and points to the steel beam is hinged to the hanging frame, and a distance is formed between the hanging frame and the steel beam by obliquely supporting the supporting piece on the corresponding edge of the steel beam, so that a hanging basket which is fixedly connected to the bottom of the hanging frame and is far away from the side of the steel beam. Through adopting the top support piece to articulate in the stores pylon, when locating the girder steel with the stores pylon cover, adjust the top support piece and support in the border of girder steel to in the aspect of stable connection stores pylon and girder steel in order to keep the stability of stores pylon, on the other hand utilizes the top support piece to support spacing stores pylon, makes to be formed with the interval between stores pylon and the girder steel, avoids the stores pylon whole to lean on in the girder steel.
As is apparent from the above description of the invention, the length of the hanger is adjusted by the structure of the insert rod and the saw-tooth, but it is required to emphasize safety as well as to secure a problem of movement when the basket is used at high altitude, and the insert rod and the saw-tooth are unstable in connection and easily become loose by a slight touch. And the relation between the hanging basket and the steel structure is not limited and described in the file, and when a person stands in the hanging basket, the hanging basket can deviate to the position of the steel structure.
Utility model 201320557673.8 discloses a movable hanging basket for construction outside a guardrail, which comprises a hanging basket and a hanging rack fixedly connected with the hanging basket and hanging the hanging basket outside the guardrail, wherein the hanging rack comprises a plurality of right-angle frames which are fixed on one side of the hanging basket side by side to form a hook structure with the side, each right-angle frame comprises a horizontal rod and a vertical rod, and the side surfaces of the hanging rack fixed on the horizontal rod, the whole rod and the hanging basket are respectively fixed with a roller which is in contact with the guardrail and can make the hanging basket move along the length direction of the guardrail; the utility model has the advantages of simple structure and convenient use, and has the characteristics of high safety, good stability and strong maneuverability compared with the traditional steel bar hook type hanging basket; the construction method improves the working environment of high-altitude construction, improves the mechanization level of building construction, and meets the requirements of energy conservation, emission reduction and green civilized construction level.
In the above patent, the positional relationship between the cradle and the outside of the guardrail is defined by the roller attached to the cradle, but the adjustability of the crossbar is not described.
Therefore, the technical personnel in the field need a hanging basket device which is stable and convenient to move when the steel structure works high above the ground, and has a relatively fixed position and does not generate hard touch between the hanging basket and the steel structure.
Disclosure of Invention
To the problem that exists among the above-mentioned patent and the prior art, the utility model aims to provide a be convenient for remove when steel construction high altitude construction, the security is high, and the position is relatively stable, and can not take place the hanging flower basket device of touching between the in-process hanging flower basket of removal or construction and steel construction.
In order to achieve the purpose, the utility model provides a steel construction high altitude construction area gyro wheel movable hanging flower basket device, the device adopt the preparation of zinc-plated square steel pipe, and the inside and outside side of square steel sets up the bolt hole, adjusts cross arm length to adapt to all kinds of steel member sizes, two gyro wheels are installed respectively in cross arm both sides and the hanging flower basket outside, make things convenient for the workman also can lateral shifting hanging flower basket in the hanging flower basket, save time improves labor efficiency, and the probability that the hanging flower basket produced the risk about the reduction.
Specifically, the utility model discloses the technical scheme who takes is: a movable bearing device for high-altitude construction based on a steel structure comprises a hanging basket and a movement connecting device, wherein the hanging basket is used for bearing constructors and/or construction materials, the movement connecting device is used for installing the hanging basket on the steel structure and assisting the hanging basket to move on the steel structure, the movement connecting device comprises a supporting device and a moving device, the supporting device comprises a cross arm connected with the hanging basket and an adjusting cross arm used for adjusting the length of the supporting device, one end of the adjusting cross arm is connected with a fixed arm vertically arranged with the adjusting cross arm, a cross arm hole penetrating through the horizontal direction of the cross arm is formed in the cross arm, an adjusting hole penetrating through the adjusting cross arm is formed in the adjusting cross arm, the adjusting hole corresponds to the cross arm hole, and fixing bolts penetrating through the cross arm hole and the adjusting hole are arranged in the cross arm hole and the adjusting hole; the moving device comprises an auxiliary arm connected to the outer side of the cross arm and a moving roller which is installed on the auxiliary arm and is in sliding connection with the steel structure.
Foretell high altitude construction is with portable device that bears based on steel construction, mobile device is still including setting up the auxiliary mover on the hanging flower basket, auxiliary mover is including sliding the auxiliary cover that cup joints in the pole setting of the both sides of hanging flower basket respectively, connect in the auxiliary cover outside and with affiliated pole setting vertically auxiliary arm to and connect on the auxiliary arm and with steel construction roll connection's supplementary gyro wheel, be provided with on the auxiliary cover inject auxiliary cover with the supplementary binding of pole setting relative position.
The steel structure-based movable bearing device for high-altitude construction is characterized in that the cross arm and the adjusting arm are of hollow rod-shaped structures with similar cross section shapes, the inner diameter of the cross arm is larger than the outer diameter of the adjusting arm, and the adjusting arm is sleeved in the cross arm hollow structure.
The cross arm and the adjusting arm are of rod-shaped structures with the same cross section shapes, the adjusting arm and the cross arm are arranged side by side, the adjusting arm is arranged on the inner side of the cross arm, and the moving device is arranged on the outer side of the cross arm.
Foretell high altitude construction is with portable device that bears based on steel construction, mobile device includes fixed shifter and adjustment shifter, the welding of fixed shifter is in the position that is close to cross arm and hanging flower basket junction, the adjustment shifter is including sliding the adjusting collar of cup jointing in the cross arm outside to and be used for restricting the binding of adjusting collar position on the cross arm, the outside at the adjusting collar is connected to the auxiliary arm.
Foretell high altitude construction is with portable device that bears based on steel construction, the lower extreme of fixed arm is provided with the fixed rope, the other one end of fixed rope is binded on the hanging flower basket.
The movable bearing device for the high-altitude construction based on the steel structure is characterized in that: the moving device further comprises a brake for limiting the movement of the roller.
The utility model relates to a high altitude construction is with portable device that bears based on steel construction's beneficial effect is: the hanging basket is connected to the steel structure and moves on the steel structure to form a whole by arranging the movement connecting device, so that the connection and the movement are ensured to be carried out simultaneously, the cross arm and the adjusting arm are connected together by using bolts to penetrate through cross arm holes and adjusting holes on the cross arm and the adjusting arm, the connection is more stable by virtue of the structure of the holes and bolts, and the cross arm and the adjusting arm cannot be easily subjected to position change under the condition of no human intervention and operation; the auxiliary shifter is used, so that the relative position of the hanging basket and the steel structure can be limited to be unchanged, the position of the auxiliary shifter is adjusted up and down by using the auxiliary sleeve, the auxiliary shifter can adapt to steel structure bodies with different thicknesses, and the sliding connection of the auxiliary shifter and the steel structure bodies is ensured; by arranging the adjusting mover, the relative positions of the cross arm and the adjusting arm are adjusted according to the steel structure main body, and meanwhile, the distance between the fixing mover and the adjusting mover can be adjusted according to the width of the steel structure main body, so that the adjusting mover is applicable to the width of the steel structure main body; through setting up the brake, when not removing, ensure that the gyro wheel does not take place to roll surely, ensure the position of hanging flower basket and keep stable.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the kinematic coupling of the present invention;
FIG. 3 is a schematic view of the parallel connection structure of the supporting device of the present invention;
FIG. 4 is a schematic view of the sleeve structure of the supporting device of the present invention;
FIG. 5 is a schematic view of the connection structure of the fixing rope and the fixing arm of the present invention;
fig. 6 is a schematic structural view of the auxiliary mover of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described below with reference to the following detailed description and accompanying drawings.
As shown in figures 1-6, the movable bearing device for high-altitude construction based on the steel structure is manufactured by galvanized square steel pipes, bolt holes are formed in the inner side and the outer side of each of the inner square steel pipe and the outer square steel pipe, the length of a cross arm is adjusted to adapt to the sizes of various steel members, two rollers are respectively installed on the two sides of the cross arm and the outer side of a hanging basket, the hanging basket can be conveniently moved transversely by workers in the hanging basket, time is saved, labor efficiency is improved, and the risk probability that the hanging basket is subjected to risks up and down is reduced.
The movable bearing device comprises a hanging basket 1 used for bearing constructors and/or construction materials, the hanging basket is welded by galvanized square steel pipes and comprises surrounding vertical rods 11, a bottom beam 12 at the bottom and a cross beam 13 inserted between the vertical rods and used for reinforcing the stable structure of the hanging basket.
A motion connecting device 2 used for installing the hanging basket on a steel structure and assisting the hanging basket to move on the steel structure is welded above a front side upright post of the hanging basket, the motion connecting device comprises a supporting device used for connecting the hanging basket with the steel structure, the supporting device comprises a cross arm 21 connected with the hanging basket, the cross arm is welded above the front side upright post, an adjusting cross arm 22 connected with the cross arm and used for adjusting the length of the supporting device according to the width of the steel structure, one end of the adjusting cross arm far away from the hanging basket is welded with a fixing arm 23 arranged perpendicular to the adjusting cross arm, the cross arm is provided with a cross arm hole 24 penetrating through the horizontal direction of the cross arm, the central axis of the cross arm hole is perpendicular to the central axis of the cross arm, the adjusting cross arm is provided with an adjusting hole 25 penetrating through the adjusting cross arm, the central axis of the adjusting hole is perpendicular to the central axis of the adjusting cross arm, the adjusting hole is arranged corresponding to the cross arm hole, and the adjusting hole are internally provided with a fixing bolt 26 penetrating through the cross arm hole and the adjusting hole, and fixed using a fixing nut 29. The supporting devices are at least provided with two groups for keeping the balance of the hanging basket, and a plurality of groups of supporting devices can be arranged according to the size of the hanging basket.
On the support means, there are provided means for moving the basket with respect to the steel structure, comprising an appendage 31 connected outside the cross arm, and a mobile roller 32 mounted on the appendage and slidingly connected to the steel structure. The moving device is divided into a fixed mover 33 and an adjusting mover 34, the fixed mover is welded at a position close to the joint of the cross arm and the hanging basket and is mainly used for limiting the initial position of the supporting device, the adjusting mover comprises an adjusting sleeve which is sleeved on the outer side of the cross arm in a sliding mode and a fastener which is used for limiting the position of the adjusting sleeve on the cross arm, an auxiliary arm of the adjusting mover is connected to the outer side of the adjusting sleeve and is mainly used for adjusting the width of the moving device according to the width of a steel structure, so that the moving device is the same as the steel structure in width, the phenomenon of unbalanced movement is prevented, or the roller is not in sliding contact with the steel structure.
In order to prevent the hanging basket from tilting caused by unbalanced weight in the using and moving process of the hanging basket, the moving device further comprises an auxiliary moving device 4 arranged on the hanging basket, the auxiliary moving device comprises auxiliary sleeves 41 respectively sleeved on the vertical rods on two sides of the hanging basket in a sliding mode, auxiliary arms 42 connected to the outer sides of the auxiliary sleeves and perpendicular to the vertical rods, and auxiliary rollers 43 connected to the auxiliary arms and connected with a steel structure in a rolling mode, auxiliary fasteners 44 limiting the relative positions of the auxiliary sleeves and the vertical rods are arranged on the auxiliary sleeves, auxiliary sleeve holes are formed in the auxiliary sleeves, each auxiliary fastener comprises an auxiliary nut 45 welded to the outer sides of the auxiliary sleeve holes, auxiliary fastening bolts 46 penetrating through the auxiliary nuts and the auxiliary sleeve holes, and anti-slip devices 47 arranged at the tops of the auxiliary fastening bolts and attached to the vertical rods. The structure of the adjustment mover is substantially the same as that of the auxiliary mover.
When the width change of steel construction is less, the cross arm uses the hollow rod-shaped structure that the cross sectional shape is similar with adjusting the arm, and the internal diameter of cross arm is greater than the external diameter of adjusting the arm, adjusts the arm and cup joints in cross arm hollow structure, when cup jointing the setting, adjusts the shifter and can install on adjusting the arm.
When the width of the steel structure is greatly changed, the cross arm and the adjusting arm are of rod-shaped structures with the same cross section shapes, the adjusting arm and the cross arm are arranged side by side, the adjusting arm is arranged on the inner side of the cross arm, and the moving device is arranged on the outer side of the cross arm.
In order to ensure that the hanging basket moves and stands freely and is converted freely in the construction process, the roller is provided with a brake, and the brake can use a holding type brake block and can also use a pin column to limit the roller.
In order to ensure the safety of the hanging basket in the using process, the lower end of the fixing arm is provided with a U-shaped ring 27, the U-shaped ring is connected with the fixing wall through bolts, the U-shaped ring is connected with a fixing rope 28, and the other end of the fixing rope is bound on the hanging basket, so that the movement connecting device forms an annular structure surrounding a steel structure to prevent falling.
The above embodiments are only for illustrating the structural conception and the characteristics of the present invention, and the purpose thereof is to enable the person skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. The utility model provides a high altitude construction is with portable device that bears based on steel construction, is including the hanging flower basket that is used for bearing constructor and/or construction material to and be used for installing the hanging flower basket on the steel construction, and the motion connecting device that supplementary hanging flower basket removed on the steel construction, its characterized in that: the motion connecting device comprises a supporting device and a moving device, the supporting device comprises a cross arm connected with the hanging basket and an adjusting cross arm used for adjusting the length of the supporting device, one end of the adjusting cross arm is connected with a fixed arm which is perpendicular to the adjusting cross arm, a cross arm hole penetrating through the cross arm in the horizontal direction is formed in the cross arm, an adjusting hole penetrating through the adjusting cross arm is formed in the adjusting cross arm, the adjusting hole and the cross arm hole are correspondingly formed, and a fixing bolt penetrating through the cross arm hole and the adjusting hole is arranged in the cross arm hole and the adjusting hole; the moving device comprises an auxiliary arm connected to the outer side of the cross arm and a moving roller which is installed on the auxiliary arm and is in sliding connection with the steel structure.
2. The movable bearing device for high altitude construction based on steel structure of claim 1, wherein: the moving device further comprises an auxiliary moving device arranged on the hanging basket, the auxiliary moving device comprises auxiliary sleeves which are respectively sleeved on the vertical rods on two sides of the hanging basket in a sliding mode, auxiliary arms which are connected to the outer sides of the auxiliary sleeves and perpendicular to the vertical rods and auxiliary idler wheels which are connected to the auxiliary arms and are in rolling connection with a steel structure, and auxiliary fasteners which limit the relative positions of the auxiliary sleeves and the vertical rods are arranged on the auxiliary sleeves.
3. The movable bearing device for high altitude construction based on steel structure of claim 1, wherein: the cross arm and the adjusting arm are of hollow rod-shaped structures with similar cross section shapes, the inner diameter of the cross arm is larger than the outer diameter of the adjusting arm, and the adjusting arm is sleeved in the cross arm hollow structure.
4. The movable bearing device for high altitude construction based on steel structure of claim 1, wherein: the cross arm and the adjusting arm are of rod-shaped structures with the same cross section shapes, the adjusting arm and the cross arm are arranged side by side, the adjusting arm is arranged on the inner side of the cross arm, and the moving device is arranged on the outer side of the cross arm.
5. The movable bearing device for high-altitude construction based on the steel structure as claimed in claim 1, wherein: the mobile device comprises a fixed mover and an adjusting mover, the fixed mover is welded at a position close to the joint of the cross arm and the hanging basket, the adjusting mover comprises an adjusting sleeve which is sleeved on the outer side of the cross arm in a sliding mode and a fastener which is used for limiting the position of the adjusting sleeve on the cross arm, and the auxiliary arm is connected to the outer side of the adjusting sleeve.
6. The movable bearing device for high altitude construction based on steel structure of claim 1, wherein: the lower extreme of fixed arm is provided with the fixed rope, the other end of fixed rope is binded on the hanging flower basket.
7. The movable bearing device for high altitude construction based on steel structure of claim 1, wherein: the moving device further comprises a brake for limiting the movement of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220149455.XU CN217151155U (en) | 2022-01-20 | 2022-01-20 | Movable bearing device for high-altitude construction based on steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220149455.XU CN217151155U (en) | 2022-01-20 | 2022-01-20 | Movable bearing device for high-altitude construction based on steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217151155U true CN217151155U (en) | 2022-08-09 |
Family
ID=82689188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220149455.XU Expired - Fee Related CN217151155U (en) | 2022-01-20 | 2022-01-20 | Movable bearing device for high-altitude construction based on steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217151155U (en) |
-
2022
- 2022-01-20 CN CN202220149455.XU patent/CN217151155U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110173282B (en) | Steel arch device is found in small cross section tunnel | |
| CN217151155U (en) | Movable bearing device for high-altitude construction based on steel structure | |
| CN101670994B (en) | Lifting working platform for construction | |
| CN212982223U (en) | Anti-falling stacking device for hoisting construction pipes | |
| CN214247190U (en) | Vertical storage tank ladder | |
| CN205777363U (en) | A kind of high-altitude fast-type moves spraying platform truck | |
| CN209989034U (en) | A hoisting frame for factory building piping erection | |
| CN208641587U (en) | Hanging-gate style movable safety band tying device | |
| CN206769338U (en) | Convenient scaffold for building | |
| CN210194435U (en) | Movable trolley for transverse prestress construction of continuous beam | |
| CN207110418U (en) | A kind of railway pier top encloses hanging basket safe operation platform | |
| CN209760746U (en) | Assembled adjustable mobile operation platform | |
| CN207048285U (en) | A kind of portable hanging operating platform | |
| CN220056160U (en) | Device for moving photovoltaic square foundation | |
| CN208347287U (en) | External hanging type mobile repairs vehicle | |
| CN215658593U (en) | Pipe holding slidable trolley for high-altitude butt welding | |
| CN219259346U (en) | Combined type hoisting door frame | |
| CN217535396U (en) | Portable simple and easy lifting device of height-adjustable | |
| CN212612609U (en) | Anticorrosive coating protection device for top of retaining wall of neutralization slag yard | |
| CN207278170U (en) | A kind of hanging ladder | |
| CN220813439U (en) | Girder erection hanger | |
| CN214611414U (en) | Hanging mechanism for oil tank outer wall construction hanging basket | |
| CN218021649U (en) | Oxygen tank cart for welding | |
| CN212403404U (en) | Curb transport means of adjustable hoist and mount height | |
| CN220267160U (en) | Safety belt tying rack |
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: 20220809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |