CN114705102B - Fastening detection device for steel structure engineering - Google Patents
Fastening detection device for steel structure engineering Download PDFInfo
- Publication number
- CN114705102B CN114705102B CN202210421823.6A CN202210421823A CN114705102B CN 114705102 B CN114705102 B CN 114705102B CN 202210421823 A CN202210421823 A CN 202210421823A CN 114705102 B CN114705102 B CN 114705102B
- Authority
- CN
- China
- Prior art keywords
- sleeved
- workbench
- sleeve
- fixed
- motor
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/08—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of steel structure engineering, and relates to a fastening detection device for steel structure engineering, which comprises a workbench; the support assembly is arranged on the workbench and comprises a first motor fixed with the workbench, an output shaft of the first motor vertically upwards passes through a panel of the workbench and then is sleeved with a first sleeve, a fixed disc type part is sleeved on the first sleeve, a round table is coaxially fixed on the upper side of the first sleeve, a groove is formed in the round table, a fixed bearing is sleeved in the groove, the bearing is sleeved and fixed at one end of a screw rod, and the other end of the screw rod is sleeved and fixed with the output shaft of the second motor; the nut is sleeved on the screw, a second sleeve is arranged on one side of the nut, which is away from the second motor, the second sleeve is sleeved on the screw and is fixed with the nut, a plurality of supporting structures are uniformly distributed in the circumferential direction of the second sleeve, and the supporting structures are connected with the disc-shaped piece through a guide structure; and the measuring assembly is arranged on the upper side of the workbench. The invention is convenient to operate, reduces the measurement error and improves the detection efficiency.
Description
Technical Field
The invention belongs to the technical field of steel structure engineering, and particularly relates to a fastening detection device for steel structure engineering.
Background
The increasing level of construction technology has led to new demands being made of the construction industry at the present stage, and in order to reduce the economic cost, the demands for construction period and economic cost are also increasing, and the prefabricated structure (prefabricated concrete structure) mainly comprises the prefabricated structure. The assembled structure is short for assembled concrete structure, and is formed by assembling and connecting prefabricated components serving as main stress components. Compared with the traditional cast-in-situ construction method, the assembly type structure is beneficial to green construction, because the assembly type construction can better meet the requirements of land saving, energy saving, material saving, water saving, environmental protection and the like of green construction, and the construction period is greatly shortened, so that the economic cost is greatly reduced, and the development of the industrialization of the construction in China is facilitated, thus being one of the important directions of the development of the construction industry in China at present.
The prefabricated component of present assembled structure just is mainly with steel construction, when carrying out the circumference deflection to the disc type or box shaped steel structure that the cross section is circular, mostly rely on the detection personnel to utilize the slide caliper rule to accomplish, but to the steel structure that the diameter is big, because slide caliper rule needs two people to operate in coordination, detects under the state that slide caliper rule put, such operating means for the efficiency of detection is very low, and the error is great relatively simultaneously.
Disclosure of Invention
In view of the above, the present invention provides a fastening detection device for steel structure engineering, so as to solve the above-mentioned technical problems.
The technical scheme of the invention is as follows:
a fastening detection device for steel structure engineering, comprising:
a work table;
the supporting component is used for clamping the workpiece and is arranged on the upper side of the workbench, and the supporting component comprises: the first motor is fixed with the workbench, an output shaft of the first motor vertically passes through a panel of the workbench upwards and then is sleeved with a first sleeve, a fixed disc type part is sleeved on the first sleeve, a round table is coaxially fixed on the upper side of the first sleeve, a groove is formed in the round table, a fixed bearing is sleeved in the groove, the bearing is sleeved and fixed at one end of the screw rod, and the other end of the screw rod is sleeved and fixed with the output shaft of the second motor; the nut is sleeved on the screw, a second sleeve is arranged on one side, away from the second motor, of the nut, the second sleeve is sleeved on the screw and is fixed with the nut, a plurality of groups of supporting structures are uniformly distributed in the circumferential direction of the second sleeve, each supporting structure comprises two connecting rods which are arranged in parallel, one end of each connecting rod is hinged with the second sleeve, the other end of each connecting rod is hinged with a connecting block, each connecting block is fixedly connected with a supporting block, and the supporting blocks are connected with the disc-shaped parts through guide structures;
and the measuring assembly is used for detecting workpieces, is arranged on the upper side of the workbench and is positioned on one side of the supporting assembly.
Preferably, a pressure sensor for detecting the clamping force is embedded in the support block, and the pressure sensor and the second motor are electrically connected with a controller arranged outside.
Preferably, an elastomer is detachably connected to one side of the support block, which faces away from the connecting block.
Preferably, the disc-shaped part comprises a disc body, wherein a plurality of sliding grooves are uniformly distributed on the disc body, and the sliding grooves are formed along the diameter direction of the disc body.
Preferably, the guide structure comprises a sliding block fixedly connected to the supporting block, and the sliding block is clamped in the sliding groove.
Preferably, the measuring assembly comprises at least one group of lifting assemblies arranged on the workbench, an electromagnetic meter seat is detachably connected to the top end of the lifting assemblies, and a dial plate is detachably connected to the electromagnetic meter seat.
Preferably, the lifting components are two groups, are respectively positioned at two sides of the supporting component and are symmetrically arranged, and the distance between the two groups of lifting components is adjustable through the distance adjusting component.
Preferably, the distance adjusting assembly comprises a plate body erected below a panel of the workbench, the plate body is horizontally arranged, a double-shaft motor is fixed on the plate body, an output shaft of the double-shaft motor is horizontally arranged, two ends of the double-shaft motor are respectively connected with one end of a screw rod, the rotation directions of the two screw rods are opposite, the other end of the screw rod is erected on the workbench, a nut seat is sleeved on the screw rod, and the nut seat is connected with the lifting assembly after extending to the upper side of a slot formed in the panel of the workbench.
Compared with the prior art, the fastening detection device for the steel structure engineering is convenient to operate, reduces measurement errors, improves detection efficiency, is high in practicality and is worthy of popularization.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a partial block diagram of the present invention of FIG. 1;
FIG. 3 is a partial block diagram of the present invention, FIG. 2;
FIG. 4 is a top view corresponding to FIG. 2 showing a partial structure of the present invention;
FIG. 5 is a partial block diagram of FIG. 3 of the present invention;
fig. 6 is a partial structural view of fig. 4 of the present invention.
Detailed Description
The invention provides a fastening detection device for steel structure engineering, and the invention is described below with reference to the structural schematic diagrams of fig. 1 to 6.
Example 1
As shown in fig. 1 and 5, the main structure of the fastening detection device for steel structure engineering provided by the invention comprises a workbench 1 serving as a structural support of the device, and a support component for clamping a workpiece is arranged on the upper side of the workbench 1.
Specifically, the structure of the supporting component comprises a first motor 5 fixed with the workbench 1, wherein an output shaft of the first motor 5 vertically upwards passes through a panel of the workbench 1 and then is sleeved with a first sleeve 18, a fixed disc type part 10 is sleeved on the first sleeve 18, a round table 20 is coaxially fixed on the upper side of the first sleeve 18, a groove is formed in the round table 20, a fixed bearing 19 is sleeved in the groove, the bearing 19 is sleeved and fixed at one end of a screw 17, and the other end of the screw 17 is sleeved and fixed with an output shaft of the second motor 15; the screw rod 17 is sleeved with the nut 14, one side of the nut 14, which is away from the second motor 15, is provided with the second sleeve 16, the second sleeve 16 is sleeved on the screw rod 17 and is fixed with the nut 14, two groups of supporting structures are uniformly distributed in the circumferential direction of the second sleeve 16, as shown in fig. 1 and 5, each supporting structure specifically comprises two parallel connecting rods 13, one end of each connecting rod 13 is hinged with the second sleeve 16, the other end of each connecting rod is hinged with the connecting block 12, one side of each connecting block 12, which is away from each connecting rod 13, is fixedly connected with the corresponding supporting block 11, the supporting blocks 11 are connected with the disc-shaped piece 10 through guide structures, and the supporting structures are driven by the second motor 15 to open and close along with the action of the nuts 14, so that the workpiece clamping and fixing or releasing actions are realized.
Further specifically, as shown in fig. 2, the structure of the disc-shaped member 10 includes a disc 1001, and a plurality of sliding grooves 1002 are uniformly distributed on the disc 1001, and the sliding grooves 1002 are formed along the diameter direction of the disc 1001.
Further, as shown in fig. 3, the guiding structure includes a sliding block 21 fixedly connected to the lower end of the supporting block 11, and the sliding block 21 is clamped in the sliding groove 1002 and can move along the length direction of the sliding groove 1002.
Further specifically, in order not to damage the surface of the work piece, an elastic body is detachably connected to the side of the stay block 11 facing away from the connection block 12. The elastomer may be rubber or soft sponge.
When the workpiece is required to be clamped, the workpiece is sleeved on the supporting structure, the second motor 15 is started, the second motor 15 rotates, the screw rod 17 is driven to rotate synchronously, the nut 14 on the screw rod 17 moves downwards along the screw rod 17, the inclination angle of the connecting rod 13 is increased, the connecting block 12 and the supporting block 11 are pushed outwards, the sliding block 21 at the lower end of the supporting block 11 moves outwards along the length direction of the sliding groove 1002, the supporting block 11 is supported on the inner wall of the workpiece, and the workpiece is clamped and fixed.
In order to master whether the clamping force is proper, a pressure sensor can be embedded in the supporting block 11, the pressure sensor and the second motor 15 are electrically connected with a controller arranged outside, so that real-time online monitoring of the clamping force is realized, and when the clamping force is equal to a preset upper threshold value of the clamping force, the controller sends a control instruction to the second motor 15, so that the second motor 15 stops acting, and the clamping state is maintained.
When the workpiece is required to be released, the controller sends an instruction to the second motor 15, the second motor 15 is started, the second motor 15 reversely rotates, so that the screw 17 is driven to synchronously reversely rotate, the nut 14 on the screw 17 moves upwards along the screw 17, the inclination angle of the connecting rod 13 is reduced, the connecting block 12 and the supporting block 11 are pulled inwards, the sliding block 21 at the lower end of the supporting block 11 moves inwards along the length direction of the sliding groove 1002, the supporting block 11 is separated from the inner wall of the workpiece, and the workpiece is released.
In addition, a measuring assembly for realizing circumferential runout detection of the workpiece is arranged on the upper side of the workbench 1, and the measuring assembly is positioned on one side of the supporting assembly.
Further specifically, the measuring assembly comprises at least one group of lifting assemblies 7 arranged on the workbench 1, the top ends of the lifting assemblies 7 are detachably connected with an electromagnetic meter seat 8, and a dial 9 is detachably connected to the electromagnetic meter seat 8. Dial 9 may be a dial indicator or a dial indicator.
Further specifically, the lifting assemblies 7 may be two groups, which are respectively located at two sides of the supporting assembly and symmetrically arranged, and the distance between the two groups of lifting assemblies 7 may be achieved by adjusting the distance adjusting assembly according to the position of the surface of the workpiece to be measured. When the device is specifically used, the heights of the two groups of lifting assemblies 7 can be adjusted to be inconsistent, so that the heights of the dial plates 9 are different, and circle runout of different positions of the workpiece can be measured.
Further, as shown in fig. 6, the structure of the distance adjusting assembly comprises a plate body 4 erected below a panel of the workbench 1, the plate body 4 is horizontally arranged, a double-shaft motor 6 is fixed on the plate body, an output shaft of the double-shaft motor 6 is horizontally arranged, two ends of the output shaft of the double-shaft motor 6 are respectively connected with a screw rod 3, the rotation directions of the two screw rods 3 are opposite, a bearing is sleeved at the other end of the screw rod 3, the bearing is sleeved in a groove structure, the groove structure is formed on the side wall surface of the workbench 1, a nut seat 2 is sleeved at the middle section of the screw rod 3, and the upper end of the nut seat 2 is connected with the lower end of the lifting assembly 7 after extending to the upper side of the slot formed in the panel of the workbench 1.
The lower extreme fixed connection T type slider of nut seat 2, T type slider cartridge are in T type inslot, and the T type groove is seted up on plate body 4 upper surface, and the direction of seting up of T type groove is unanimous with the direction of seting up of slot.
When the double-shaft motor 6 is started, the two lead screws 3 are driven to synchronously rotate, so that the two nut seats 2 on the double-shaft motor are synchronously close to or synchronously far away from each other along the opening direction of the T-shaped grooves and the slots, and the positions of the two dials 9 are adjusted.
When the circle runout is measured, after the workpiece is to be clamped, the positions of the two dial plates 9 are adjusted by utilizing the distance adjusting assembly, so that the gauge heads of the two dial plates 9 are tightly pressed on the surface of the workpiece, then the first motor 5 is started, the first sleeve 18, the disc-shaped piece 10 and the supporting structure are driven to synchronously rotate for at least one circle, and the maximum runout amounts of the two dial plates 9 are respectively read and used as the measured circle runout value.
The fastening detection device for the steel structure engineering, provided by the invention, is convenient to operate, reduces measurement errors, improves the detection efficiency, has strong practicability and is worthy of popularization.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations within the scope of the present invention will be apparent to those skilled in the art.
Claims (6)
1. A fastening and detecting device for steel structure engineering, comprising:
a work table (1);
the supporting component is used for clamping the workpiece and is arranged on the upper side of the workbench (1), and the supporting component comprises: the first motor (5) is fixed with the workbench (1), an output shaft of the first motor (5) vertically passes through a panel of the workbench (1) upwards and then is sleeved with the first sleeve (18), a fixed disc type part (10) is sleeved on the first sleeve (18), a round table (20) is coaxially fixed on the upper side of the first sleeve (18), a groove is formed in the round table (20), a fixed bearing (19) is sleeved in the groove, the bearing (19) is sleeved and fixed at one end of a screw rod (17), and the other end of the screw rod (17) is sleeved and fixed with an output shaft of the second motor (15); the nut (14) is sleeved on the screw rod (17), a second sleeve (16) is arranged on one side, away from the second motor (15), of the nut (14), the second sleeve (16) is sleeved on the screw rod (17) and is fixed with the nut (14), multiple groups of supporting structures are uniformly distributed in the circumferential direction of the second sleeve (16), each supporting structure comprises two connecting rods (13) which are arranged in parallel, one end of each connecting rod (13) is hinged with the second sleeve (16), the other end of each connecting rod is hinged with a connecting block (12), each connecting block (12) is fixedly connected with a supporting block (11), and the supporting blocks (11) are connected with the disc-shaped piece (10) through a guide structure;
the measuring assembly is used for detecting workpieces and is arranged on the upper side of the workbench (1) and positioned on one side of the supporting assembly;
the disc-shaped piece (10) comprises a disc body (1001), wherein a plurality of sliding grooves (1002) are uniformly distributed on the disc body (1001), and the sliding grooves (1002) are formed along the diameter direction of the disc body (1001);
the guide structure comprises a sliding block (21) fixedly connected to the supporting block (11), and the sliding block (21) is clamped in the sliding groove (1002).
2. A fastening detection device for steel construction engineering according to claim 1, characterized in that a pressure sensor for detecting clamping force is embedded on the supporting block (11), and the pressure sensor and the second motor (15) are electrically connected with a controller of an external device.
3. A fastening detection device for steel construction engineering according to claim 1, characterized in that the side of the stay block (11) facing away from the connection block (12) is detachably connected with an elastomer.
4. The fastening detection device for steel structure engineering according to claim 1, wherein the measuring assembly comprises at least one group of lifting assemblies (7) arranged on the workbench (1), an electromagnetic gauge stand (8) is detachably connected to the top end of the lifting assemblies (7), and a dial plate (9) is detachably connected to the electromagnetic gauge stand (8).
5. The fastening detection device for steel structure engineering according to claim 4, wherein the lifting assemblies (7) are two groups, are respectively positioned at two sides of the supporting assembly and are symmetrically arranged, and the distance between the two groups of lifting assemblies (7) is adjustable through the distance adjusting assembly.
6. The fastening detection device for steel structure engineering according to claim 5, wherein the distance adjusting assembly comprises a plate body (4) erected below a panel of the workbench (1), the plate body (4) is horizontally arranged and is fixedly provided with a double-shaft motor (6), an output shaft of the double-shaft motor (6) is horizontally arranged, two ends of the double-shaft motor are respectively connected with one end of one screw rod (3), the rotation directions of the two screw rods (3) are opposite, the other end of the screw rod (3) is erected on the workbench (1), a nut seat (2) is sleeved on the screw rod (3), and the nut seat (2) is connected with the lifting assembly (7) after extending to the upper side of the slot formed in the panel of the workbench (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210421823.6A CN114705102B (en) | 2022-04-21 | 2022-04-21 | Fastening detection device for steel structure engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210421823.6A CN114705102B (en) | 2022-04-21 | 2022-04-21 | Fastening detection device for steel structure engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114705102A CN114705102A (en) | 2022-07-05 |
| CN114705102B true CN114705102B (en) | 2024-02-13 |
Family
ID=82175115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210421823.6A Active CN114705102B (en) | 2022-04-21 | 2022-04-21 | Fastening detection device for steel structure engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114705102B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117629015B (en) * | 2023-03-02 | 2024-04-02 | 西安成立航空制造有限公司 | Aeroengine combustion chamber shell performance detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017175662A1 (en) * | 2016-04-06 | 2017-10-12 | 株式会社東京精密 | Workpiece supporting device |
| CN110965807A (en) * | 2019-12-21 | 2020-04-07 | 王桂花 | Steel construction engineering support bracket |
| CN111906571A (en) * | 2020-08-11 | 2020-11-10 | 濮阳职业技术学院 | Mechanical-electrical integrated hydraulic clamping device |
| CN112482756A (en) * | 2020-12-06 | 2021-03-12 | 赵亚蕊 | Building installation template structure |
-
2022
- 2022-04-21 CN CN202210421823.6A patent/CN114705102B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017175662A1 (en) * | 2016-04-06 | 2017-10-12 | 株式会社東京精密 | Workpiece supporting device |
| CN110965807A (en) * | 2019-12-21 | 2020-04-07 | 王桂花 | Steel construction engineering support bracket |
| CN111906571A (en) * | 2020-08-11 | 2020-11-10 | 濮阳职业技术学院 | Mechanical-electrical integrated hydraulic clamping device |
| CN112482756A (en) * | 2020-12-06 | 2021-03-12 | 赵亚蕊 | Building installation template structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114705102A (en) | 2022-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114705102B (en) | Fastening detection device for steel structure engineering | |
| CN114088022B (en) | Motor rotor assembly accuracy detection device | |
| CN113977619B (en) | Bearing clamping jaw with clamping and detecting functions and detecting method | |
| CN2903952Y (en) | Superimposed force standard machine | |
| CN213748376U (en) | Building engineering roughness detection device | |
| CN219590088U (en) | Special device for detecting deflection of building component | |
| CN217638331U (en) | Friction test equipment under electrochemical environment | |
| CN214842985U (en) | Device for measuring flatness of fan blade | |
| CN115046763A (en) | Slewing bearing transmission stability detection test bench | |
| CN216846867U (en) | High-speed electric main shaft rotation precision test bench | |
| CN217345224U (en) | Height-adjustable electric spindle mounting platform and centering adjusting device | |
| CN219890368U (en) | High-precision optical crystal measuring device | |
| CN219977341U (en) | Multi-point type steel plate thickness detection device | |
| CN218880972U (en) | Foundation bearing capacity detection device | |
| CN220230403U (en) | Straightness detection tool for machining | |
| CN220419478U (en) | Withstand voltage detection device of direct current insulation monitor | |
| CN213956156U (en) | Inspection tool for blade interface of flow guide cover | |
| CN220018859U (en) | Generator gas tightness detection device that wind-powered electricity generation was used | |
| CN221841097U (en) | High-precision wafer test probe station | |
| CN217384198U (en) | Inside and outside diameter measuring tool for modularized wind power bearing | |
| CN221925869U (en) | Cement resistance to compression detects anchor clamps | |
| CN216560019U (en) | Section bar pressure detection structure for five-axis numerical control high-precision rolling compound machine | |
| CN219015153U (en) | Clamping tool for positioning and detecting composite material special-shaped cylinder | |
| CN211601945U (en) | Electric power engineering cost construction levelness check out test set | |
| CN221055709U (en) | Template flatness detection device |
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 |