CN203747728U - Adjustable photovoltaic assembly support - Google Patents
Adjustable photovoltaic assembly support Download PDFInfo
- Publication number
- CN203747728U CN203747728U CN201420154773.0U CN201420154773U CN203747728U CN 203747728 U CN203747728 U CN 203747728U CN 201420154773 U CN201420154773 U CN 201420154773U CN 203747728 U CN203747728 U CN 203747728U
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- China
- Prior art keywords
- connector
- photovoltaic module
- supporting construction
- angle
- module support
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- 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 - Lifetime
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- 238000010276 construction Methods 0.000 claims description 63
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 description 11
- 238000003466 welding Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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
- Y02E10/50—Photovoltaic [PV] energy
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses an adjustable photovoltaic assembly support, which comprises a frame and a first support structure. The first support structure comprises a base and a support component. The base features an angle adjusting mechanism. The support component consists of a height adjusting mechanism and a first connecting piece. The height adjusting mechanism comprises a fastening piece and a moving piece. The moving piece is connected to the fastening piece through a retaining piece and can move in the vertical direction along the fastening piece. The fastening piece is connected with the angle adjusting mechanism through the retaining piece. The first connecting piece is disposed on the moving piece. And the frame is disposed on the first connecting piece. The angle and the height of the adjustable photovoltaic assembly support of the utility model can be manually adjusted to adapt different grounds. As seasons alternate, the angle of the support is turned to make sun rays travel as perpendicularly as possible to photovoltaic components so as to increase power amount in a photovoltaic power plant.
Description
Technical field
The utility model relates to solar photovoltaic generation system, relates in particular to the adjustable photovoltaic module support of the manual adjusting angle of a kind of energy and height.
Background technology
Worldwide energy crisis, promoted the fast development of New Energy Industry, and solar energy is the various most important basic power sources in the energy of giving birth to; Therefore as the solar energy generation technology that solar radiant energy is converted to electric energy, photovoltaic industry develops rapidly especially; And the photovoltaic bracket indispensable part that is exactly photovoltaic industry.Photovoltaic module support, be in solar photovoltaic generation system in order to put, installation, fixed light photovoltaic assembly and the special support that designs, photovoltaic module is the core in solar power system, its effect is to convert solar energy into electrical energy, or be sent in storage battery and store, or promote loaded work piece.
Conventional photovoltaic assembly support is divided into fixed angle photovoltaic bracket and follows the tracks of the large class of photovoltaic bracket two.
Fixed angle photovoltaic bracket, presses place, power plant construction ground latitude, builds uncontrollable riding angle.Follow the tracks of photovoltaic bracket, photovoltaic bracket possesses braking force, can be according to the different incidence angles degree adjusting angle in real time of sunlight, ensure that sunray can impinge perpendicularly on photovoltaic module surface all the time.
There is following problem in fixed angle photovoltaic bracket:
1, the angle of fixed angle photovoltaic bracket and highly fixing cannot adjusting, while running into the place of the large slope aspect of heavy grade, because the foundation level height of each photovoltaic bracket is inconsistent, cannot use the standard photovoltaic bracket of same model, thereby cause being difficult to adapt to while installation in enormous quantities the requirement of project progress.
2, current, the connected mode of fixed angle photovoltaic bracket and photovoltaic module mainly contains following two kinds: one, welding, when this connected mode installing/dismounting, waste time and energy; Two, bolt connects, and this connected mode need to be beaten a lot of preformed holes on the crossbeam of photovoltaic bracket and longeron, and preformed hole slightly deviation assembles just very difficultly, causes assembling procedure loaded down with trivial details.
3, fixed angle photovoltaic bracket is uncontrollable after installing, and summer is mutually far short of what is expected with the elevation angle of winter solar light, and the energy output of photovoltaic module can be a greater impact, and can not obtain the maximum power of solar panels.
Follow the tracks of photovoltaic bracket adjusting angle tracking position of sun in real time, to obtain the maximum power of solar panels, but follow the tracks of the real-time adjusting angle of photovoltaic bracket, not only self need constantly to consume electric energy; And because photovoltaic plant is often in Desert Area, machinery or fault easily occur for precision drive and Signal Processing Element that tracking photovoltaic bracket self has, thereby affect the stability of photovoltaic plant operation.
Utility model content
Technical problem to be solved in the utility model is to provide the adjustable photovoltaic module support of the manual adjusting angle of a kind of energy and height.
The utility model solves the adjustable photovoltaic module support that its technical problem adopts, comprise framework and the first supporting construction, described the first supporting construction comprises base and strutting piece, described base has angle adjusting mechanism, described strutting piece has height adjusting structure and the first connector, described height adjusting structure comprises fixture and moving member, described moving member is connected with described fixture by locking member, and described moving member energy in the vertical direction moves with respect to described fixture, described fixture is connected with described angle adjusting mechanism by locking member, described the first connector is arranged on described moving member, described framework is arranged on described the first connector.
Further, described framework comprises the first beam, the second beam and the 3rd beam; One end of described the first beam is free end, the other end of described the first beam is connected with one end of described the 3rd beam, one end of described the second beam is free end, and the other end of described the second beam is connected with the other end of described the 3rd beam, and described the first beam, the second beam and the 3rd beam form the plane of U font; Described adjustable photovoltaic module support also comprises the second supporting construction, and described the second supporting construction comprises base and the second connector, and described the second connector is connected with described angle adjusting mechanism by locking member; Described the first beam is arranged on the second connector of described the second supporting construction, and described the second beam is arranged on the second connector of described the second supporting construction, and described the 3rd beam is arranged on the first connector of described the first supporting construction.
Further, described framework comprises the first beam, the second beam and the 3rd beam; One end of described the first beam is free end, the other end of described the first beam is connected with one end of described the 3rd beam, one end of described the second beam is free end, and the other end of described the second beam is connected with the other end of described the 3rd beam, and described the first beam, the second beam and the 3rd beam form the plane of U font; Described adjustable photovoltaic module support also comprises the second supporting construction, and described the second supporting construction comprises base and the second connector, and described the second connector is connected with described angle adjusting mechanism by locking member; Described the first beam is arranged on the first connector of described the first supporting construction, and described the second beam is arranged on the first connector of described the first supporting construction, and described the 3rd beam is arranged on the second connector of described the second supporting construction.
Further, described adjustable photovoltaic module support also comprises photovoltaic module connector, on described the first beam and the second beam, is respectively arranged with at least one stopping means; One end of described photovoltaic module connector is arranged on the stopping means of described the first beam, and the other end is arranged on the stopping means of described the second beam.
Further, described stopping means is groove.
Further, described stopping means is protruding part.
Further, described photovoltaic module connector is shaped steel.
Further, described locking member is screw or bearing pin.
The beneficial effects of the utility model are: because the base of the first supporting construction of adjustable photovoltaic module support of the present utility model has angle adjusting mechanism, can realize angular adjustment, the strutting piece of the first supporting construction has height adjusting structure, can realize highly and regulating, therefore, adjustable photovoltaic module support of the present utility model can be arranged on the ground of various landform, comprises the not Complex Mountain of the large slope aspect of heavy grade of grade of foundation of civil work height; And, along with the variation in season, angle that can manual adjustments photovoltaic module support, make the incident angle of sunlight as far as possible perpendicular to photovoltaic module, can utilize more fully like this photovoltaic module generating, so that the energy output of this photovoltaic module system is more, obtains more electric energy, thereby can improve the energy output of photovoltaic plant.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the framework schematic diagram in Fig. 1;
Fig. 3 is the first supporting construction in Fig. 1;
Fig. 4 is the second supporting construction in Fig. 1;
Fig. 5 is that the utility model is installed the structural representation after photovoltaic module;
Shown in figure: 1-framework, 2-the second supporting construction, 3-the first supporting construction, 4-photovoltaic module connector, 5-base, 6-photovoltaic module, 11-the first beam, 12-the second beam, 13-the 3rd beam, 14-stopping means, 21-the second connector, 31-strutting piece, 311-fixture, 312-moving member, 313-the first connector, 51-angle adjustment mechanism.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Fig. 1, shown in Fig. 3 and Fig. 5, adjustable photovoltaic module support of the present utility model, comprise framework 1 and the first supporting construction 3, described the first supporting construction 3 comprises base 5 and strutting piece 31, described base 5 has angle adjusting mechanism 51, described strutting piece 31 has height adjusting structure and the first connector 313, described height adjusting structure comprises fixture 311 and moving member 312, described moving member 312 is connected with described fixture 311 by locking member, and described moving member 312 can move with respect to described fixture 311 by the vertical direction, described fixture 311 is connected with described angle adjusting mechanism 51 by locking member, described the first connector 313 is arranged on described moving member 312, described framework 1 is arranged on described the first connector 313.Described framework 1 can be arbitrary shape, as long as meet energy installation photovoltaic component 6, generally, because photovoltaic module 6 is rectangles, so framework is traditionally arranged to be rectangle, can at utmost utilize like this framework, space avoids waste, can be by welding, the modes such as bolt connection or brace connection are installed to photovoltaic module 6 on framework 1, described the first supporting construction 3 is for support frame 1, by regulating angle adjusting mechanism 51 and the height adjustment mechanism of described the first supporting construction 3, height and angle that can the whole framework 1 of manual adjustments, like this, even while running into the place of the large slope aspect of heavy grade, the level height of the foundation of civil work of each adjustable photovoltaic module support is inconsistent, when extensive installation, also can be with the adjustable photovoltaic module support of same model, when installation, only need to regulate the angle adjusting mechanism 51 of each strutting piece 31 and height adjustment mechanism just can make the same angle of inclination of whole photovoltaic module array in design and connect as one in flakes, install very convenient, not only can improve installation progress, can also save the human cost while installation, and spring, summer, autumn, each season in winter, the incident angle of sunlight is inconsistent, also can pass through angle adjusting mechanism 51 and height adjustment mechanism, make the incident angle of sunlight as far as possible perpendicular to photovoltaic module 6, can utilize more fully photovoltaic module 6 so that the energy output of this photovoltaic module system is more like this, obtain more electric energy.Described height adjusting structure can be realized by following execution mode: for example, the first execution mode, fixture 311 is set in moving member 312 outsides, while needing to regulate height, relative fixture 311 in the vertical directions of moving member 312 are slided, so just can regulate the height of described strutting piece 31; The second execution mode, on the vertical direction of fixture 311, offer chute, moving member 312 is arranged in the chute of fixture 311, while needing to regulate height, relative fixture 311 in the vertical directions of moving member 312 are slided, can realize equally the function of above-mentioned adjusting height.Described locking member can be screw, bolt, brace etc., is being adjusted to after needed height, just by screw, bearing pin, bolt or brace locking, need to readjust height time.Described fixture 311 is connected with described angle adjusting mechanism 51 by locking member, like this, just can adjust the corner dimension between described strutting piece 31 and ground by rotation fixture 311, thereby realize angle regulating function, connecting described fixture 311 can be screw, bearing pin, bolt or brace etc. with the locking member of angle adjustment mechanism 51, when being adjusted to after needed angle, by lockings such as screw, bearing pin, bolt or braces, make angle be fixed on needed angle.Described the first connector 313 is directly connected with framework 1, as the direct support zone of framework 1, therefore, only have described the first connector 313 to be arranged on described moving member 312, while regulating the height of described strutting piece 31, could regulate the height of framework 1, i.e. the height of whole photovoltaic module support.
In order to make the incident angle of sunlight as far as possible perpendicular to photovoltaic module 6, described framework 1 generally and between ground surface has certain angle of inclination, therefore, when described framework 1 is during by many support construction supports, supporting construction can only have a kind of structure, also can comprise various structures, for example, in the time that framework 1 arranges on the slope, because the gradient of each local slope section is different, therefore each supporting construction of framework 1 preferably all has height adjusting structure and angle adjustment mechanism, like this, in the situation that the gradient is steeper, cooperatively interact to regulate height and angle by each supporting construction, thereby meet the angle of inclination of photovoltaic module support design, when framework 1 is arranged on level land, making one end that framework 1 height is overhead low is front end, one end that framework 1 height is overhead higher is rear end, in this case, the supporting construction of front end just can only have angle adjusting mechanism, because, as long as rear end supporting construction has height adjustment mechanism just can regulate height and the angle of whole photovoltaic module support, so, can save material, reduce costs, can also meet and regulate the height of photovoltaic module support and the needs of angle simultaneously.
Therefore, as one preferred embodiment, as shown in Figure 1, Figure 2 and Figure 4, described framework 1 comprises the first beam 11, the second beam 12 and the 3rd beam 13; One end of described the first beam 11 is free end, the other end of described the first beam 11 is connected with one end of described the 3rd beam 13, one end of described the second beam 12 is free end, the other end of described the second beam 12 is connected with the other end of described the 3rd beam 13, and described the first beam 11, the second beam 12 and the 3rd beam 13 form the plane of U font; Described adjustable photovoltaic module support also comprises the second supporting construction 2, and described the second supporting construction 2 comprises base 5 and the second connector 21, and described the second connector 21 is connected with described angle adjusting mechanism 51 by locking member; Described the first beam 11 is arranged on the second connector 21 of described the second supporting construction 2, and described the second beam 12 is arranged on the second connector 21 of described the second supporting construction 2, and described the 3rd beam 13 is arranged on the first connector 313 of described the first supporting construction 3.Described framework 1 is arranged to U font, with respect to being arranged to square shape, can reduce by a beam, saves material.Described the first supporting construction 3 can only have one, also can there be many, if only have one, generally, described the first supporting construction 3 is arranged in the centre position of described the 3rd beam 13, two if, generally, described the first supporting construction 3 is generally arranged in the two ends of described the 3rd beam 13, if be more than or equal to 3, generally be evenly arranged in the below of described the 3rd beam 13, like this, can strengthen the stability of framework 1.Described the second supporting construction 2 is at least two, and one for supporting described the first beam 11, and another is for supporting described the second beam 12.Described the second supporting construction 2 comprises base 5 and the second connector 21, and described the second connector 21 is connected with described angle adjusting mechanism 51; By rotating described the second connector 21, just can realize angular adjustment, between described the second connector 21 and angle adjustment mechanism 51, can be connected by modes such as screw, bearing pin, bolt or braces, when being adjusted to after needed angle, by screw, bearing pin, bolt or brace locking, make angle be fixed on needed angle.As shown in figures 1 and 3, if the first connector 313 of described the first supporting construction 3 is set to support arm structure, described the first beam 11 can directly be placed on the first connector 313, installs very convenient.Described the first beam 11 can be connected by brace with the second connector 21 of described the second supporting construction 2, and described the second beam 12 can be connected by brace with the second connector 21 of described the second supporting construction 2.
As another kind execution mode arranged side by side, described framework 1 comprises the first beam 11, the second beam 12 and the 3rd beam 13; One end of described the first beam 11 is free end, the other end of described the first beam 11 is connected with one end of described the 3rd beam 13, one end of described the second beam 12 is free end, the other end of described the second beam 12 is connected with the other end of described the 3rd beam 13, and described the first beam 11, the second beam 12 and the 3rd beam 13 form the plane of U font; Described adjustable photovoltaic module support also comprises the second supporting construction 2, and described the second supporting construction 2 comprises base 5 and the second connector 21, and described the second connector 21 is connected with described angle adjusting mechanism 51 by locking member; Described the first beam 11 is arranged on the first connector 313 of described the first supporting construction 3, and described the second beam 12 is arranged on the first connector 313 of described the first supporting construction 3, and described the 3rd beam 13 is arranged on the second connector 21 of described the second supporting construction 2.Under this execution mode, the supporting construction being connected with the firstth beam 11 and the second beam 12 be can regulate highly again can adjusting angle the first supporting construction 3, the supporting construction being connected with the 3rd beam 13 be can only adjusting angle the second supporting construction.
Can be bolted or the mode such as welding is installed to photovoltaic module 6 on support 1, still, while using bolt to connect, generally need on framework 1, beat a lot of preformed holes, preformed hole slightly deviation assembles just very difficultly, causes assembling procedure loaded down with trivial details; Mode by welding is installed to photovoltaic module 6 on support 1, while not only installation, to be equipped with specially soldering appliance, Site Welding, and after welding well, just photovoltaic module 6 disassemble from support 1 just cumbersome, therefore as one preferred embodiment, as shown in Figure 1, Figure 2 with shown in Fig. 5, described adjustable photovoltaic module support also comprises photovoltaic module connector 4, on described the first beam 11 and the second beam 12, is respectively arranged with at least one stopping means 14; One end of described photovoltaic module connector 4 is arranged on the stopping means 14 of described the first beam 11, and the other end is arranged on the stopping means 14 of described the second beam 12.Described photovoltaic module connector 4 can be made up of shaped steel or steel bar etc., while using adjustable photovoltaic module support of the present utility model, by conventional fastener, photovoltaic module 6 is fixed on described photovoltaic module connector 4, again the two ends of photovoltaic module connector 4 are placed on stopping means 14, like this, under the effect of stopping means 14, photovoltaic module 6 has just hung on framework 1 by photovoltaic module connector 4, installation method is very simple, can Fast Installation and dismounting, greatly improve installation effectiveness.
The effect of described stopping means 14 is positions of restriction photovoltaic module connector 4, prevent that photovoltaic module connector 4 from sliding from framework 1, the structure of described stopping means 14 can have multiple implementation, for example: described stopping means 14 is groove or protruding part.If described stopping means 14 is groove, can directly on described the first beam 11 and the second beam 12, excavate groove, but this execution mode, can reduce the intensity of framework 1; If described stopping means 14 is protruding part, the objects such as steel bar or shaped steel piece can be fixed on described the first beam 11 and the second beam 12 and forms stopping means 14.
Described photovoltaic module connector 4 can be made up of shaped steel or steel bar etc., and as preferred embodiment, described photovoltaic module connector 4 is shaped steel, because shaped steel has from heavy and light, and intensity advantages of higher.
Because locking member adopts screw or bearing pin, it is firm to lock, and convenient disassembly, and therefore, as preferred embodiment, described locking member is screw or bearing pin.
Claims (8)
1. adjustable photovoltaic module support, it is characterized in that: comprise framework (1) and the first supporting construction (3), described the first supporting construction (3) comprises base (5) and strutting piece (31), described base (5) has angle adjusting mechanism (51), described strutting piece (31) has height adjusting structure and the first connector (313), described height adjusting structure comprises fixture (311) and moving member (312), described moving member (312) is connected with described fixture (311) by locking member, and described moving member (312) energy in the vertical direction is mobile with respect to described fixture (311), described fixture (311) is connected with described angle adjusting mechanism (51) by locking member, described the first connector (313) is arranged on described moving member (312), described framework (1) is arranged on described the first connector (313).
2. adjustable photovoltaic module support as claimed in claim 1, is characterized in that: described framework (1) comprises the first beam (11), the second beam (12) and the 3rd beam (13); One end of described the first beam (11) is free end, the other end of described the first beam (11) is connected with one end of described the 3rd beam (13), one end of described the second beam (12) is free end, the other end of described the second beam (12) is connected with the other end of described the 3rd beam (13), and described the first beam (11), the second beam (12) and the 3rd beam (13) form the plane of U font; Described adjustable photovoltaic module support also comprises the second supporting construction (2), and described the second supporting construction (2) comprises base (5) and the second connector (21), and described the second connector (21) is connected with described angle adjusting mechanism (51) by locking member; Described the first beam (11) is arranged on second connector (21) of described the second supporting construction (2), described the second beam (12) is arranged on second connector (21) of described the second supporting construction (2), and described the 3rd beam (13) is arranged on first connector (313) of described the first supporting construction (3).
3. adjustable photovoltaic module support as claimed in claim 1, is characterized in that: described framework (1) comprises the first beam (11), the second beam (12) and the 3rd beam (13); One end of described the first beam (11) is free end, the other end of described the first beam (11) is connected with one end of described the 3rd beam (13), one end of described the second beam (12) is free end, the other end of described the second beam (12) is connected with the other end of described the 3rd beam (13), and described the first beam (11), the second beam (12) and the 3rd beam (13) form the plane of U font; Described adjustable photovoltaic module support also comprises the second supporting construction (2), and described the second supporting construction (2) comprises base (5) and the second connector (21), and described the second connector (21) is connected with described angle adjusting mechanism (51) by locking member; Described the first beam (11) is arranged on first connector (313) of described the first supporting construction (3), described the second beam (12) is arranged on first connector (313) of described the first supporting construction (3), and described the 3rd beam (13) is arranged on second connector (21) of described the second supporting construction (2).
4. adjustable photovoltaic module support as claimed in claim 2 or claim 3, is characterized in that: also comprise photovoltaic module connector (4), on described the first beam (11) and the second beam (12), be respectively arranged with at least one stopping means (14); One end of described photovoltaic module connector (4) is arranged on the stopping means (14) of described the first beam (11), and the other end is arranged on the stopping means (14) of described the second beam (12).
5. adjustable photovoltaic module support as claimed in claim 4, is characterized in that: described stopping means (14) is groove.
6. adjustable photovoltaic module support as claimed in claim 4, is characterized in that: described stopping means (14) is protruding part.
7. adjustable photovoltaic module support as claimed in claim 4, is characterized in that: described photovoltaic module connector (4) is shaped steel.
8. adjustable photovoltaic module support as claimed in claim 1, is characterized in that: described locking member is screw or bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154773.0U CN203747728U (en) | 2014-04-01 | 2014-04-01 | Adjustable photovoltaic assembly support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154773.0U CN203747728U (en) | 2014-04-01 | 2014-04-01 | Adjustable photovoltaic assembly support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747728U true CN203747728U (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420154773.0U Expired - Lifetime CN203747728U (en) | 2014-04-01 | 2014-04-01 | Adjustable photovoltaic assembly support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022031858A1 (en) * | 2020-08-05 | 2022-02-10 | Boguess Brian C | Devices, systems, and methods for installing and load testing earth anchor foundations |
-
2014
- 2014-04-01 CN CN201420154773.0U patent/CN203747728U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022031858A1 (en) * | 2020-08-05 | 2022-02-10 | Boguess Brian C | Devices, systems, and methods for installing and load testing earth anchor foundations |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140730 |
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| CX01 | Expiry of patent term |