CN220565758U - Shaping overhanging protection shed - Google Patents
Shaping overhanging protection shed Download PDFInfo
- Publication number
- CN220565758U CN220565758U CN202322100924.6U CN202322100924U CN220565758U CN 220565758 U CN220565758 U CN 220565758U CN 202322100924 U CN202322100924 U CN 202322100924U CN 220565758 U CN220565758 U CN 220565758U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- frame body
- fixing seat
- wire rope
- fixing
- 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
- 238000007493 shaping process Methods 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000005457 optimization Methods 0.000 abstract description 7
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Tents Or Canopies (AREA)
Abstract
The utility model relates to the technical field of building construction safety protection devices, and provides a shaping overhanging protection shed which comprises a frame body, diagonal rods, a frame body fixing seat and a pull rod fixing seat, wherein the frame body is a rectangular frame formed by welding flat through steel pipes, a porous sealing plate is welded on the bottom surface of the frame body, a pull rod mounting seat is welded on a side longitudinal pipe at the overhanging end of the frame body and is movably connected with the diagonal rods, a pull rod fixing hole is formed at the other end of the diagonal rods and is movably connected with the pull rod fixing seat, and the wall attaching end of the frame body is movably hinged with 2 frame body fixing seats, so that the optimization scheme is as follows: 1. the diagonal draw bar is telescopic structure, 2, the end of encorbelmenting of framework is provided with the guardrail, 3, 1 wall body connecting rod is with 2 framework fixing base disjunctor connection, 4, has laid the wire net piece on the framework, and 5, wire rope's both ends are connected framework and wire rope fixing base respectively. The utility model enables the overhanging protection shed to be shaped, can be assembled into the overhanging protection shed row by arranging a plurality of overhanging protection sheds in parallel, and has the characteristics of convenient use and transportation and reusability.
Description
Technical Field
The utility model belongs to the technical field of building construction safety protection devices, and particularly relates to a finalized overhanging protection shed device.
Background
The high-rise building main structure construction process has the advantages that the high-rise building main structure construction process can be subjected to high-altitude object falling accident, the overhanging protection shed is erected by the section steel and the steel pipes to carry out protection and isolation, one overhanging net sheet and a safety net are formed along one circle of the outer wall in the falling radius range of the high-rise main structure, but a plurality of workers are required to carry out high-altitude operation in the installation process, so that the high-rise building main structure construction process is dangerous, the installation difficulty and the labor intensity are high, the protection shed of the type is basically disposable, the turnover rate is low, the appearance is attractive, and the visiting effect requirement of a commercial residential sample plate layer is not met.
Therefore, the standardized cantilever protective shed is researched, and a pre-customization mode is adopted, so that the overhead work load of workers can be greatly reduced, the installation difficulty and the labor intensity are reduced, the safety is ensured, the turnover rate and the attractiveness are improved, and certain economic benefits are achieved.
Disclosure of Invention
The utility model aims to provide a finalized overhanging protection shed, which has the characteristics of customization, good safety protection effect, reusability and good attractive effect.
The utility model can be realized by the following technical scheme:
the utility model provides a protection canopy is encorbelmented to design, includes framework, diagonal draw bar, framework fixing base and pull rod fixing base, the framework has by flat steel pipe welding constitution.
The frame body comprises a rectangular frame formed by welding and connecting 2 side longitudinal pipes and 2 end transverse pipes, at least 1 middle longitudinal pipe and a plurality of middle transverse pipes are connected in the rectangular frame in a separated mode, a porous sealing plate is welded on the bottom surface of the frame body, one end of the frame body is a wall attaching end, and the other end of the frame body is an overhanging end.
The cantilever end of the frame body is welded with a pull rod mounting seat on the side longitudinal pipe and is provided with a shaft hole, one end of the diagonal pull rod of the flat steel pipe structure is provided with a pull rod mounting hole and inserted into the pull rod mounting seat, the diagonal pull rod is movably connected with the frame body through a bolt, and the other end of the diagonal pull rod is provided with a pull rod fixing hole.
The frame fixing seat is provided with a bottom plate and a fixing seat hinge lug, the fixing seat hinge lug is welded on the bottom plate, and the end transverse tube at the wall attaching end of the frame is correspondingly provided with the frame hinge lug, so that the frame is movably hinged with 2 frame fixing seats by bolts.
The pull rod fixing seat is provided with a bottom plate, a pull rod fixing plate and a pull rod connecting hole, the tail end of the diagonal draw rod can be abutted against the pull rod fixing plate of the pull rod fixing seat, and the diagonal draw rod is movably connected with the pull rod fixing seat through the pull rod fixing bolt.
Optimization scheme 1: the diagonal draw bar is of a telescopic structure: the size of the telescopic link is slightly smaller than that of the diagonal draw bar, a plurality of diagonal draw bar transverse holes are transversely formed in the diagonal draw bar at intervals, a draw bar fixing hole is formed in one end of the telescopic link, a telescopic link fixing hole is formed in the other end of the telescopic link and is sleeved in the diagonal draw bar, the telescopic link and the diagonal draw bar are fixedly connected through a pin bolt, the diagonal draw bar is movably connected with a draw bar fixing seat through a draw bar fixing bolt, the end of the telescopic link, extending out of the telescopic link, of the telescopic link is transversely welded with a draw bar end portion, and the draw bar fixing hole is formed in the draw bar end portion.
Optimization scheme 2: the cantilever end of the frame body is provided with a guardrail, the outside of the guardrail is welded with a guardrail sealing plate, and the guardrail can be supported by 2 diagonal braces.
Optimization scheme 3: the 1 wall body connecting rod is connected with the 2 frame body fixing seats in a connecting mode, the bottom plate is welded to one side of the wall body connecting rod after the frame body fixing seats are detached, and the fixing seat hinge lug is welded to the other side of the wall body connecting rod.
Optimization scheme 4: the frame body is laid with a steel wire net sheet.
Optimization scheme 5: the steel wire rope fixing seat is provided with a bottom plate and steel wire rope connecting lugs, the steel wire rope connecting lugs are welded on the bottom plate, and the frame connecting lugs are arranged on the side longitudinal pipes of the frame side parts.
Optimization scheme 6: the wire rope is further included, one end of the wire rope is connected with the frame body connecting lug, and the other end of the wire rope is connected with the wire rope connecting lug on the wire rope fixing seat.
When the frame is used, the frame is fixed above a position to be protected beside a building, and the frame fixing seat is fixed on the wall surface of the building by using expansion screws;
for the telescopic diagonal draw bar, the telescopic rod is pulled out to adjust the length of the diagonal draw bar, so that the end part of the tie rod at the end part of the telescopic rod is positioned above the wall attaching end of the frame body, meanwhile, the overhanging end of the frame body is tilted slightly upwards, and the telescopic rod is fixedly connected with the diagonal draw bar through a pin bolt.
The diagonal draw bar is movably connected with the draw bar fixing seat by a draw bar fixing bolt, the angle of the draw bar fixing seat is adjusted to enable the bottom plate of the draw bar fixing seat to be abutted against the wall surface or the windowsill of a building, and then the draw bar fixing seat is fixed on the building.
If necessary, the steel wire rope fixing seat is fixed on the building, one end of the steel wire rope is connected with the frame body connecting lug, the other end of the steel wire rope is connected with the steel wire rope fixing seat, and the overhanging end of the frame body is hung by the steel wire rope and the diagonal draw bar.
Repeating the steps, and arranging a plurality of shaping overhanging protection sheds in a parallel manner.
Compared with the prior art, the utility model has the characteristics that: the overhanging protection shed is shaped, is assembled and used in a detachable mode, and has the characteristics of convenient transportation and reusability.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
The utility model is further illustrated by the following preferred examples:
example 1
Referring to fig. 1, a finalized overhanging protection shed comprises a frame body 1, an inclined pull rod 4, a frame body fixing seat 3 and a pull rod fixing seat 5.
The frame body 1 is formed by welding flat steel pipes (40×60×1.5 mm), and comprises a rectangular frame (2000 mm×3000 mm) formed by welding 2 side longitudinal pipes 11 and 2 end transverse pipes 12, wherein 1 middle longitudinal pipe and 6 middle transverse pipes 13 are separated (the separation is 750mm, the bottom surface of the frame body 1 is welded with a porous sealing plate 7 (the thickness is 1 mm), one end of the frame body 1 is a wall attaching end, the other end is a cantilever end, and steel wire meshes (not shown in the figure) are laid on the frame body 1 of the embodiment.
The cantilever end of the frame body 1 is provided with a guardrail 2 (2000 mm multiplied by 600 mm), the guardrail 2 is formed by welding flat steel pipes (40 multiplied by 60 multiplied by 1.5 mm), the cantilever end comprises 1 top guardrail 21 with the length equal to the width (2000 mm) of the frame body 1,2 side vertical rods 22 and 1 middle vertical rod end are welded on the top guardrail 21 to enable the top guardrail 21 to be positioned on one side of the guardrail 2, the other side of the guardrail 2 is welded on an end transverse pipe 12 of the frame body 1, the outer side of the guardrail 2 is welded with a guardrail sealing plate 24 (with the thickness of 1 mm), 2 diagonal braces 23 support the guardrail 2, and two ends of each diagonal brace 23 are welded on the top guardrail 21 end and a side longitudinal pipe 11 of the frame body 1 respectively.
The cantilever end of the frame body 1 is welded with a pull rod mounting seat 14 on the side longitudinal pipe 11 and is provided with a shaft hole, one end of a diagonal pull rod 4 of a flat steel pipe (40 multiplied by 60 multiplied by 1.5 mm) structure is provided with a pull rod mounting hole, the end of the diagonal pull rod 4 is inserted into the pull rod mounting seat 14, a bolt 141 passes through the shaft hole of the pull rod mounting seat 14 and the pull rod mounting hole at the end of the diagonal pull rod 4 and is screwed by a nut, so that the diagonal pull rod 4 is movably connected with the frame body 1, and the other end of the diagonal pull rod 4 is provided with a pull rod fixing hole 40;
the frame fixing seat 3 is provided with a bottom plate and a fixing seat hinge lug 32, the bottom plate is provided with a frame fixing seat hole 30, in this embodiment, the 2 frame fixing seats 3 are connected in a connected mode through 1 wall connecting rods 31 (40×60×3 mm), the bottom plate of the frame fixing seat 3 is welded on one side of the wall connecting rods 31, the fixing seat hinge lug 32 is welded on the other side of the wall connecting rods 31, the end transverse tube 12 at the wall attaching end of the frame 1 is correspondingly provided with a frame hinge lug, and bolts penetrate through the frame hinge lug and the fixing seat hinge lug 32 and are screwed through nuts, so that the frame 1 is movably hinged with the 2 frame fixing seats 3.
The pull rod fixing seat 5 is provided with a bottom plate and a pull rod fixing plate 51, the bottom plate is provided with a pull rod fixing seat hole 50, the pull rod fixing plate 51 is provided with a pull rod connecting hole, the tail end of the diagonal draw rod 4 can be abutted against the pull rod fixing plate 51 of the pull rod fixing seat 5, and a pull rod fixing bolt 52 passes through the pull rod connecting hole on the pull rod fixing seat 5 and the pull rod fixing hole 40 at the end of the diagonal draw rod 4 and is screwed by a nut, so that the diagonal draw rod 4 is movably connected with the pull rod fixing seat 5.
The diagonal draw bar 4 of this embodiment is a telescopic structure: the diagonal draw bar 4 is transversely provided with a plurality of diagonal draw bar transverse holes 44 at intervals, the size of the telescopic rod 41 is slightly smaller than that of the diagonal draw bar 4, the stretching end of the telescopic rod 41 of the embodiment is transversely welded with a draw bar end part 42, the draw bar fixing hole 40 is arranged at the draw bar end part 42, the other end of the telescopic rod 41 is provided with a telescopic rod fixing hole and sleeved and inserted into the diagonal draw bar 4, the pin 43 penetrates through the diagonal draw bar transverse holes 44 of the diagonal draw bar 4 and the telescopic rod fixing holes of the telescopic rod 41 to fixedly connect the telescopic rod 41 with the diagonal draw bar 4, and the draw bar fixing bolt 52 penetrates through the draw bar connecting hole on the draw bar fixing seat 5 and the draw bar fixing hole 40 at the end of the telescopic rod 41 to movably connect the diagonal draw bar 4 with the draw bar fixing seat 5.
For safety use, the embodiment further comprises a steel wire rope (phi 12) and a steel wire rope fixing seat 6, wherein the steel wire rope fixing seat 6 is provided with a bottom plate and a steel wire rope connecting lug 61, the bottom plate is provided with a steel wire rope fixing seat hole 60, the steel wire rope connecting lug 61 is welded on the bottom plate, a frame connecting lug 15 is arranged on a side longitudinal pipe 11 at the side part of the frame 1, one end of the steel wire rope is connected with the frame connecting lug 15, and the other end of the steel wire rope is connected with the steel wire rope connecting lug 61 on the steel wire rope fixing seat 6.
When in use, the installation steps are as follows:
1. the frame 1 is fixed above the position to be protected beside the building, and the frame fixing seat 3 (through the frame fixing seat hole 30) is fixed on the wall surface of the building by using expansion screws.
2. The telescopic rod 41 is pulled out to adjust the length of the diagonal draw bar 4, the end part 42 of the draw rod at the end part of the telescopic rod 41 is positioned above the wall attaching end of the frame body 1, the overhanging end of the frame body 1 is tilted slightly upwards, and the telescopic rod 41 and the diagonal draw bar 4 are fixedly connected by using the pin bolt 43 to pass through the diagonal draw bar transverse hole 44 on the frame body 1 and the telescopic rod fixing hole of the telescopic rod 41.
3. The pull rod fixing bolt 52 passes through the pull rod connecting hole on the pull rod fixing seat 5 and the pull rod fixing hole 40 at the end of the telescopic rod 41 to movably connect the diagonal draw rod 4 and the pull rod fixing seat 5, the angle of the pull rod fixing seat 5 is adjusted to enable the bottom plate of the pull rod fixing seat to be abutted against the wall surface or the windowsill of the building, and then the pull rod fixing seat 5 (through the pull rod fixing seat hole 50) is fixed on the building by using an expansion screw.
4. The wire rope fixing base 6 (wire rope fixing base hole 60) is fixed on the building by an expansion screw, one end of a wire rope (not shown in the figure) of phi 12 is connected with the frame body connecting lug 15, and the other end is connected with the wire rope connecting lug 61 on the wire rope fixing base 6.
The steps are repeated, a plurality of shaping overhanging protection sheds are arranged in parallel, and if necessary, edge guardrails (3000 mm multiplied by 600 mm) can be additionally arranged on the edges of the frame body 1 of the overhanging protection sheds at the edges, and the structures of the edge guardrails are similar to those of the guardrails 2 in the embodiment.
When the overhanging protection shed is not needed, the shaping overhanging protection shed can be removed and left as a next construction site for use, and the shaping overhanging protection shed has the characteristics of convenience in installation and transportation and reusability.
Claims (9)
1. The utility model provides a protection canopy is encorbelmented to design, including framework (1), diagonal draw bar (4), framework fixing base (3) and pull rod fixing base (5), framework (1) has by flat logical steel pipe welding constitutes its characterized in that:
the frame body (1) comprises a rectangular frame formed by welding ends of 2 side longitudinal pipes (11) and 2 end transverse pipes (12), at least 1 middle longitudinal pipe and a plurality of middle transverse pipes (13) are connected in the rectangular frame in a separated mode, a porous sealing plate (7) is welded on the bottom surface of the frame body (1), one end of the frame body (1) is a wall-attached end, and the other end of the frame body is an overhanging end;
the frame body fixing seat (3) is provided with a bottom plate and a fixing seat hinge lug (32), the bottom plate is provided with a frame body fixing seat hole (30), the fixing seat hinge lug (32) is welded on the bottom plate, the end transverse tube (12) at the wall attaching end edge part of the frame body (1) is correspondingly provided with a frame body hinge lug, and bolts penetrate through the frame body hinge lug and the fixing seat hinge lug (32) and are screwed by nuts, so that the frame body (1) is movably hinged with 2 frame body fixing seats (3);
the cantilever end of the frame body (1) is welded with a pull rod mounting seat (14) on the side longitudinal pipe (11) and is provided with a shaft hole, one end of a diagonal pull rod (4) of a flat steel pipe structure is provided with a pull rod mounting hole, the end of the diagonal pull rod (4) is inserted into the pull rod mounting seat (14), a bolt (141) penetrates through the shaft hole of the pull rod mounting seat (14) and the pull rod mounting hole at the end of the diagonal pull rod (4) and is screwed by a nut, so that the diagonal pull rod (4) is movably connected with the frame body (1), and the other end of the diagonal pull rod (4) is provided with a pull rod fixing hole (40);
the pull rod fixing seat (5) is provided with a bottom plate and a pull rod fixing plate (51), the bottom plate is provided with a pull rod fixing seat hole (50), the pull rod fixing plate (51) is provided with a pull rod connecting hole, the tail end of the diagonal draw rod (4) can be attached to the pull rod fixing plate (51) of the pull rod fixing seat (5), a pull rod fixing bolt (52) penetrates through the pull rod connecting hole on the pull rod fixing seat (5) and the pull rod fixing hole (40) at the end of the diagonal draw rod (4) and is screwed by a nut, and the diagonal draw rod (4) is movably connected with the pull rod fixing seat (5).
2. The standardized overhanging protection shed as claimed in claim 1, characterized in that the diagonal draw bar (4) is of a telescopic structure:
the utility model discloses a telescopic link, including oblique pull rod (4) and telescopic link fixing seat, oblique pull rod (4) interval transversely is opened there is a plurality of oblique pull rod cross holes (44), and telescopic link (41) size is slightly less than oblique pull rod (4), and open one end of telescopic link (41) has pull rod fixed orifices (40), and open the other end has the telescopic link fixed orifices and overlap and insert in oblique pull rod (4), and in oblique pull rod (4) are passed oblique pull rod cross holes (44) and telescopic link (41) telescopic link fixed orifices with telescopic link (41), pull rod fixing bolt (52) pass pull rod connecting hole and telescopic link (41) end pull rod fixed orifices (40) on pull rod fixing seat (5) make oblique pull rod (4) and pull rod fixing seat (5) swing joint.
3. The modular overhanging protection shed as claimed in claim 2, characterized in that:
the stretching end of the telescopic rod (41) is transversely welded with a rod end head (42), and the rod fixing hole (40) is formed in the rod end head (42).
4. A modular overhanging protection shed according to claim 1 or 2 or 3, characterized in that:
the utility model discloses a guardrail, including frame (1), the end of encorbelmenting of frame (1) is provided with guardrail (2), guardrail (2) are including 1 top railing (21) that length equals with frame (1) width, and montant end welding in top railing (21) makes top railing (21) be located one side of guardrail (2) in 2 limit montant and at least 1, and guardrail (2) another side welding is on end violently pipe (12) of frame (1), and the outside welding of guardrail (2) has guardrail closing plate (24).
5. The modular overhanging protection shed as claimed in claim 4, characterized in that:
the guardrail (2) is supported by the 2 diagonal braces (23), and two ends of the diagonal braces (23) are welded on the top railing (21) end and the side longitudinal tube (11) of the frame body (1) respectively.
6. The modular overhanging protection shed as claimed in claim 4, characterized in that:
the 1 wall body connecting rod (31) is used for connecting the 2 frame body fixing seats (3) in a connecting mode, the bottom plate is welded to one side of the wall body connecting rod (31) after the frame body fixing seats (3) are detached, and the fixing seat hinge lug (32) is welded to the other side of the wall body connecting rod (31).
7. The modular overhanging protection shed as claimed in claim 5 or 6, characterized in that: the frame body (1) is laid with a steel wire net sheet.
8. The modular overhanging protection shed as claimed in claim 7, characterized in that: the novel steel wire rope fixing device is characterized by further comprising a steel wire rope fixing seat (6), wherein the steel wire rope fixing seat (6) is provided with a bottom plate and steel wire rope connecting lugs (61), the bottom plate is provided with steel wire rope fixing seat holes (60), the steel wire rope connecting lugs (61) are welded on the bottom plate, and frame body connecting lugs (15) are arranged on the side longitudinal pipes (11) at the side parts of the frame body (1).
9. The modular overhanging protection shed as claimed in claim 8, characterized in that: the novel steel wire rope fixing seat is characterized by further comprising a steel wire rope, one end of the steel wire rope is connected with the frame body connecting lug (15), and the other end of the steel wire rope is connected with the steel wire rope connecting lug (61) on the steel wire rope fixing seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100924.6U CN220565758U (en) | 2023-08-04 | 2023-08-04 | Shaping overhanging protection shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100924.6U CN220565758U (en) | 2023-08-04 | 2023-08-04 | Shaping overhanging protection shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220565758U true CN220565758U (en) | 2024-03-08 |
Family
ID=90092294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322100924.6U Active CN220565758U (en) | 2023-08-04 | 2023-08-04 | Shaping overhanging protection shed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220565758U (en) |
-
2023
- 2023-08-04 CN CN202322100924.6U patent/CN220565758U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211499713U (en) | All-steel attached lifting scaffold | |
| CN220565758U (en) | Shaping overhanging protection shed | |
| CN201486120U (en) | Detachable steel column connecting construction operation platform | |
| CN212053252U (en) | Square steel pipe column-H-shaped steel beam connecting node for connecting outer sleeve with double channel steel | |
| CN206128391U (en) | Large -span glass curtain wall | |
| CN112065013A (en) | Outer wall scaffold reinforcing mechanism for construction | |
| CN110821197A (en) | Angle-adjustable assembly type horizontal cantilever protection shed and construction method thereof | |
| CN218149656U (en) | Operating platform in lighting well | |
| CN110714603A (en) | Steel pipe and steel rope composite scaffold system and construction method thereof | |
| CN218815100U (en) | Suspended walkway | |
| CN218092178U (en) | But escape way steel construction protection canopy that fast ann was dismantled | |
| CN214786122U (en) | Material platform structure of climbing frame | |
| CN206503284U (en) | A kind of semicircle vertex of a cone combines paulin room with curved surface top | |
| CN214942646U (en) | Movable balcony faces limit protection instrument | |
| CN216740646U (en) | Telescopic truss for large-span scaffold | |
| CN215107157U (en) | A stores pylon for apartment building vestibule construction | |
| CN208917887U (en) | Underground-structure deformation joint position waterproof cementation of fissures support construction | |
| CN219585686U (en) | Safe telescopic channel for suspended tower crane driver | |
| CN219931695U (en) | Foldable protective railing | |
| CN2571905Y (en) | Scaffold fence for construction | |
| CN215948984U (en) | Overhanging protection unit and device | |
| CN220599227U (en) | Turnover finalized overhanging discharging platform | |
| CN219569526U (en) | High-altitude operation platform device for steel structure building pipe truss | |
| CN217782966U (en) | High-altitude edge-facing operation protection system arranged at steel girder at edge of steel structure building | |
| CN219794615U (en) | Wall-attached heightening piece for attached lifting scaffold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |