CN213448330U - Ecological gabion - Google Patents
Ecological gabion Download PDFInfo
- Publication number
- CN213448330U CN213448330U CN202022247086.1U CN202022247086U CN213448330U CN 213448330 U CN213448330 U CN 213448330U CN 202022247086 U CN202022247086 U CN 202022247086U CN 213448330 U CN213448330 U CN 213448330U
- Authority
- CN
- China
- Prior art keywords
- block
- standpipe
- rod
- fixedly connected
- driving
- 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
Images
Landscapes
- Revetment (AREA)
Abstract
The application relates to an ecological gabion, which comprises a box cover and a box body, wherein the outer side wall of the box body is fixedly connected with a plurality of connecting plates, each connecting plate is in threaded connection with a lead screw, one end of each lead screw is fixedly sleeved with a rotating part, and the other end of each lead screw is fixedly connected with a drill bit; the end of the screw rod, which is far away from the drill bit, is provided with a mounting groove, a limiting device is arranged in the mounting groove, and the limiting device comprises a vertical pipe which is rotatably connected in the mounting groove and a driving mechanism which is arranged in the mounting groove and used for driving the vertical pipe to rotate; have set gradually multiunit stop gear along its axial on the standpipe, every stop gear of group includes a plurality of connecting blocks that set gradually along the circumference of standpipe, and the one end that the standpipe was kept away from to every connecting block articulates there is the connecting rod, and the one end that the connecting rod was kept away from the connecting block articulates there is the stopper, and the through-hole that is used for supplying the stopper to follow the radial sliding of standpipe is offered to the lateral wall of mounting groove. This application can improve the stability of gabion.
Description
Technical Field
The application relates to the technical field of gabions, in particular to an ecological gabion.
Background
Currently, gabions are one form of ecological mesh structure. Refers to a cage filled with rocks provided to prevent the bank or structure from being washed by water currents. In China, the ecological grid structure originates from a bamboo cage of 2000 years, a sheepfold process, and the plum ice father and son are used for the first time in the Dujiang weir engineering, which is the traditional ecological grid structure; the ecological grid in the modern meaning of China originates from an enterprise named Jinlida in the south of the Yangtze river.
The related art can refer to Chinese utility model patent with the publication number of CN206267265U, which discloses an ecological water purification stone cage based on a sponge city drainage system, comprising a box cover and a box body, wherein the box body comprises a bottom screen plate positioned at the bottom of the box body and side screen plates positioned at the periphery of the box body, the side screen plates are formed by cross combination of a plurality of transverse screen wires and a plurality of longitudinal screen wires, the bottom screen plate is formed by combination of a plurality of longitudinal wires and a plurality of transverse wires, each transverse screen wire comprises two first monofilaments, each first monofilament comprises a first core wire, a first antirust layer is arranged on the surface of each first core wire, and a first weather-resistant coating is arranged on the surface of each first antirust layer; the longitudinal net wire comprises two second monofilaments, each second monofilament comprises a second core wire, a second anti-rust layer is arranged on the surface of each second core wire, and a second weather-resistant coating is arranged on the surface of each second anti-rust layer; a bottom plate is arranged at the corner of the bottom screen plate, and a mounting hole is formed in the center of the bottom plate; the steel nails are nailed into the mounting holes, so that the gabion is fixed.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the texture of soil below the gabion is softer, because the steel nail surface is smoother, the connection of the steel nail and the soil is not firm, so that the stability of the gabion is reduced.
SUMMERY OF THE UTILITY MODEL
In order to improve the stability of gabion, this application provides an ecological gabion.
The application provides an ecological gabion adopts following technical scheme:
an ecological gabion comprises a box cover and a box body, wherein a plurality of connecting plates are fixedly connected to the outer side wall of the box body, a lead screw is connected to each connecting plate in a threaded mode, a rotating part is fixedly sleeved on one end of each lead screw, and a drill bit is fixedly connected to the other end of each lead screw; the end, far away from the drill bit, of the screw rod is provided with an installation groove, a limiting device is installed in the installation groove, and the limiting device comprises a vertical pipe which is rotatably connected in the installation groove and a driving mechanism which is installed in the installation groove and used for driving the vertical pipe to rotate; the standpipe is last to have set gradually multiunit stop gear along its axial, every group stop gear includes a plurality of connecting blocks that set gradually along the circumference of standpipe, every the one end that the standpipe was kept away from to the connecting block articulates there is the connecting rod, the one end that the connecting rod was kept away from the connecting block articulates there is the stopper, the through-hole that is used for supplying the stopper to follow the radial sliding of standpipe is offered to the lateral wall of mounting groove.
Through adopting above-mentioned technical scheme, make the lead screw bore in the soil through rotating the lead screw, then rotate through actuating mechanism drive standpipe, the standpipe rotates and drives the connecting block and rotates, and the connecting block rotates drive connecting rod motion, and connecting rod motion drive stopper removes to the direction of keeping away from the mounting groove, can make the stopper insert in the soil like this to be convenient for carry on spacingly to the lead screw, therefore can improve the stability of gabion.
Preferably, the driving mechanism comprises an installation block fixedly connected to one end of the installation groove far away from the drill bit and a screw rod rotatably connected to the installation block; the hand wheel is installed to the one end that the standpipe was kept away from to the screw rod, threaded connection has the actuating lever on the screw rod, the axial of actuating lever edge standpipe slides and connects in the installation piece, the one end that the installation piece was kept away from to the actuating lever is in the standpipe, and be provided with between one end that the installation piece was kept away from to the actuating lever and the standpipe and be used for driving standpipe pivoted first cooperation subassembly.
By adopting the technical scheme, when the vertical pipe needs to be driven to rotate, the screw rod is rotated by rotating the hand wheel, the screw rod rotates to drive the driving rod to move towards the vertical pipe, and at the moment, the driving rod drives the vertical pipe to rotate under the action of the first matching component; through setting up actuating mechanism, be convenient for drive standpipe rotates.
Preferably, a guide rod is fixedly connected to the mounting block, the guide rod penetrates through the driving rod, and the driving rod is connected to the guide rod in a sliding mode.
Through adopting above-mentioned technical scheme, the guide arm has the guide effect to the actuating lever.
Preferably, the first matching component comprises a plurality of spiral blocks fixedly connected to the outer side wall of the driving rod, a plurality of spiral grooves are formed in the inner side wall of the vertical pipe, and the spiral blocks are matched with the spiral grooves in a one-to-one correspondence mode.
Through adopting above-mentioned technical scheme, through setting up spiral piece and helicla flute, the actuating lever drive standpipe of being convenient for rotates.
Preferably, the screw rod is detachably connected with the hand wheel.
Through adopting above-mentioned technical scheme, be convenient for install the hand wheel.
Preferably, a slot is formed in one end, close to the hand wheel, of the screw rod, an insertion block is fixedly connected to one end, close to the screw rod, of the hand wheel, the insertion block is inserted into the slot, and a fixing mechanism for fixing the insertion block is installed in the slot.
Through adopting above-mentioned technical scheme, make the inserted block peg graft in the slot through removing the hand wheel, then fix the inserted block through fixed establishment to be convenient for install the hand wheel.
Preferably, the fixing mechanism comprises an abutting block connected to the slot in a sliding manner along the length direction of the slot and a spring fixedly connected to one side of the abutting block, which is far away from the inserting block; one end of the spring, which is far away from the abutting block, is fixedly connected with the inner wall of one end of the slot, which is far away from the inserting block; and a second matching assembly used for driving the abutting block to move is arranged between the inserting block and the abutting block.
By adopting the technical scheme, when the insertion block is inserted into the slot, the insertion block drives the abutting block to move under the action of the second matching assembly, the abutting block moves to abut against the spring, and the spring is in a compressed state; after the insertion block is inserted into the slot, the abutting block fixes the insertion block under the action of the spring; through setting up fixed establishment, be convenient for fix the inserted block.
Preferably, the second cooperation subassembly is including setting up respectively in two inclined planes of the relative inboard of inserted block and butt piece, two the inclined plane phase-match.
Through adopting above-mentioned technical scheme, through setting up the inclined plane, the inserted block drive butt piece of being convenient for removes.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the lead screw is driven to drill into the soil body by rotating the lead screw, then the vertical pipe is driven to rotate by the driving mechanism, the vertical pipe rotates to drive the connecting block to rotate, the connecting block rotates to drive the connecting rod to move, and the connecting rod moves to drive the limiting block to move towards the direction far away from the mounting groove, so that the limiting block can be inserted into the soil body, the lead screw is convenient to limit, and the stability of the gabion can be improved;
2. when the vertical pipe needs to be driven to rotate, the screw rod is rotated by rotating the hand wheel, the screw rod rotates to drive the driving rod to move towards the vertical pipe, and the driving rod drives the vertical pipe to rotate under the action of the first matching component; the driving mechanism is arranged, so that the vertical pipe is driven to rotate conveniently;
3. when the inserting block is inserted into the slot, the inserting block drives the abutting block to move under the action of the second matching assembly, the abutting block moves to abut against the spring, and the spring is in a compressed state; after the insertion block is inserted into the slot, the abutting block fixes the insertion block under the action of the spring; through setting up fixed establishment, be convenient for fix the inserted block.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a partial cross-sectional view of a stop device in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a first mating assembly in an embodiment of the present application;
fig. 4 is a partial cross-sectional view of a securing mechanism in an embodiment of the present application.
Description of reference numerals: 1. a box cover; 2. a box body; 3. a connecting plate; 4. a lead screw; 41. a rotating part; 42. a drill bit; 43. mounting grooves; 44. a through hole; 5. a limiting device; 51. a vertical tube; 6. a limiting mechanism; 61. connecting blocks; 62. a connecting rod; 63. a limiting block; 7. a drive mechanism; 71. mounting blocks; 72. a screw; 721. a slot; 73. a hand wheel; 731. inserting a block; 74. a drive rod; 75. a guide bar; 76. a first mating component; 761. a screw block; 762. a helical groove; 8. a fixing mechanism; 81. a butting block; 82. a spring; 83. a bevel.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses an ecological gabion, and referring to fig. 1 and 2, the ecological gabion comprises a box cover 1 and a box body 2, a plurality of connecting plates 3 are fixedly connected to the outer side wall of the box body 2, the connecting plates 3 are square, a lead screw 4 is connected to each connecting plate 3 in a threaded mode, a rotating portion 41 is fixedly sleeved on one end of each lead screw 4, each rotating portion 41 is a nut, and a drill bit 42 is fixedly connected to the other end of each lead screw; the lead screw 4 is kept away from the one end of drill bit 42 and is seted up mounting groove 43, installs stop device 5 in the mounting groove 43.
Referring to fig. 1 and 2, the limiting device 5 includes a vertical tube 51 rotatably connected in the mounting groove 43 through a bearing, and a driving mechanism 7 mounted in the mounting groove 43 for driving the vertical tube 51 to rotate; have set gradually multiunit stop gear 6 along its axial on the standpipe 51, every stop gear 6 of group includes a plurality of connecting blocks 61 that set gradually along the circumference of standpipe 51, and the one end that standpipe 51 was kept away from to every connecting block 61 articulates there is connecting rod 62, and the one end that connecting rod 61 was kept away from to connecting rod 62 articulates there is stopper 63, and the one end that connecting rod 62 was kept away from to stopper 63 is coniform, and the through-hole 44 that is used for supplying stopper 63 along the radial sliding of standpipe 51 is offered to the lateral wall of mounting groove 43. Make lead screw 4 bore into the soil body through rotating lead screw 4, then drive standpipe 51 through actuating mechanism 7 and rotate, standpipe 51 rotates and drives connecting block 61 and rotate, and connecting block 61 rotates drive connecting rod 62 and moves, and connecting rod 62 moves drive stopper 63 and removes to the direction of keeping away from mounting groove 43, can make stopper 63 insert in the soil body like this to be convenient for spacing lead screw 4, therefore can improve the stability of gabion.
Referring to fig. 1 and 2, the driving mechanism 7 includes a mounting block 71 fixedly connected to one end of the mounting groove 43 away from the drill 42 and a screw 72 rotatably connected to the mounting block 71 through a bearing; a hand wheel 73 is installed at one end of the screw rod 72 far away from the vertical pipe 51, a driving rod 74 is connected to the screw rod 72 in a threaded manner, the driving rod 74 is connected to the installation block 71 in a sliding manner along the axial direction of the vertical pipe 51, a guide rod 75 is fixedly connected to the installation block 71, the guide rod 75 penetrates through the driving rod 74, and the driving rod 74 is connected to the guide rod 75 in a sliding manner; an end of the driving rod 74 far away from the mounting block 71 is located in the vertical pipe 51, and a first matching assembly 76 for driving the vertical pipe 51 to rotate is arranged between the end of the driving rod 74 far away from the mounting block 71 and the vertical pipe 51. When the standpipe 51 needs to be driven to rotate, the hand wheel 73 is rotated to rotate the screw rod 72, the screw rod 72 rotates to drive the driving rod 74 to move into the standpipe 51, and at the moment, the driving rod 74 drives the standpipe 51 to rotate under the action of the first matching assembly 76; by arranging the driving mechanism 7, the vertical pipe 51 is driven to rotate conveniently.
Referring to fig. 2 and 3, the first fitting assembly 76 includes a plurality of spiral blocks 761 fixedly connected to the outer side wall of the driving rod 74, a plurality of spiral grooves 762 are formed on the inner side wall of the vertical tube 51, and the spiral blocks 761 and the spiral grooves 762 are correspondingly fitted one to one. The spiral block 761 and the spiral groove 762 are provided to facilitate the driving rod 74 to drive the vertical pipe 51 to rotate.
Referring to fig. 2 and 4, the screw 72 is detachably connected with the hand wheel 73, a slot 721 is formed in one end of the screw 72 close to the hand wheel 73, an insert 731 is fixedly connected to one end of the hand wheel 73 close to the screw 72, the insert 731 is inserted into the slot 721, the insert 731 and the slot 721 are both square, and a fixing mechanism 8 for fixing the insert 731 is installed in the slot 721. The insertion block 731 is inserted into the slot 721 by moving the handwheel 73, and then the insertion block 731 is fixed by the fixing mechanism 8, so that the handwheel 73 is convenient to install.
Referring to fig. 2 and 4, the fixing mechanism 8 includes an abutting block 81 slidably connected to the slot 721 along the length direction of the slot 721, and a spring 82 fixed to the abutting block 81 at a side away from the inserting block 731; one end of the spring 82 away from the abutting block 81 is fixedly connected to the inner wall of one end of the slot 721 away from the inserting block 731; be provided with the second cooperation subassembly that is used for driving butt joint block 81 and removes between inserted block 731 and the butt joint block 81, the second cooperation subassembly is including setting up respectively in two inclined planes 83 of inserted block 731 and the relative inboard of butt joint block 81, two inclined planes 83 phase-matchs. When the insertion block 731 is inserted into the slot 721, the insertion block 731 drives the abutting block 81 to move under the action of the inclined surface 83, the abutting block 81 moves to abut against the spring 82, and the spring 82 is in a compressed state; after the insertion block 731 is inserted into the slot 721, the abutting block 81 fixes the insertion block 731 under the action of the spring 82; by providing the fixing mechanism 8, the insert piece 731 is fixed conveniently.
The implementation principle of the ecological gabion in the embodiment of the application is as follows: make lead screw 4 bore into the earth through rotating lead screw 4 in, then rotate screw rod 72 through rotating hand wheel 73, screw rod 72 rotates drive actuating lever 74 and removes in standpipe 51, actuating lever 74 drives standpipe 51 and rotates under the effect of spiral piece 761 and helicla flute 762 this moment, standpipe 51 rotates and drives connecting block 61 and rotate, connecting block 61 rotates drive connecting rod 62 and moves, connecting rod 62 moves drive stopper 63 and removes to the direction of keeping away from mounting groove 43, can make stopper 63 insert in the soil body like this, thereby be convenient for carry on spacingly to lead screw 4, therefore can improve the stability of gabion.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an ecological gabion, includes case lid (1) and box (2), its characterized in that: the outer side wall of the box body (2) is fixedly connected with a plurality of connecting plates (3), each connecting plate (3) is in threaded connection with a lead screw (4), one end of each lead screw (4) is fixedly sleeved with a rotating part (41), and the other end of each lead screw is fixedly connected with a drill bit (42); an installation groove (43) is formed in one end, far away from the drill bit (42), of the lead screw (4), a limiting device (5) is installed in the installation groove (43), and the limiting device (5) comprises a vertical pipe (51) which is rotatably connected into the installation groove (43) and a driving mechanism (7) which is installed in the installation groove (43) and used for driving the vertical pipe (51) to rotate; set gradually multiunit stop gear (6), every group along its axial on standpipe (51) stop gear (6) include a plurality of connecting blocks (61) that the circumference along standpipe (51) set gradually, every the one end that standpipe (51) were kept away from in connecting block (61) articulates there is connecting rod (62), the one end that connecting rod (62) were kept away from connecting block (61) articulates there is stopper (63), through-hole (44) that are used for supplying stopper (63) to follow the radial sliding of standpipe (51) are seted up to the lateral wall of mounting groove (43).
2. An ecological gabion according to claim 1, characterised in that: the driving mechanism (7) comprises an installation block (71) fixedly connected to one end of the installation groove (43) far away from the drill bit (42) and a screw rod (72) rotatably connected to the installation block (71); the hand wheel (73) is installed to the one end that standpipe (51) was kept away from in screw rod (72), threaded connection has actuating lever (74) on screw rod (72), axial sliding connection in installation piece (71) along standpipe (51) of actuating lever (74), the one end that installation piece (71) was kept away from in actuating lever (74) is in standpipe (51), and be provided with between one end that installation piece (71) was kept away from in actuating lever (74) and standpipe (51) and be used for driving standpipe (51) pivoted first cooperation subassembly (76).
3. An ecological gabion according to claim 2, characterised in that: the installation piece (71) is fixedly connected with a guide rod (75), the guide rod (75) penetrates through a driving rod (74), and the driving rod (74) is connected to the guide rod (75) in a sliding mode.
4. An ecological gabion according to claim 2, characterised in that: the first matching assembly (76) comprises a plurality of spiral blocks (761) fixedly connected to the outer side wall of the driving rod (74), a plurality of spiral grooves (762) are formed in the inner side wall of the vertical pipe (51), and the spiral blocks (761) are matched with the spiral grooves (762) in a one-to-one corresponding mode.
5. An ecological gabion according to claim 2, characterised in that: the screw rod (72) is detachably connected with the hand wheel (73).
6. An ecological gabion according to claim 5, characterised in that: the screw rod (72) is close to the one end of hand wheel (73) and has seted up slot (721), the one end rigid coupling that hand wheel (73) is close to screw rod (72) has inserted block (731), inserted block (731) are pegged graft in slot (721), install fixed establishment (8) that are used for fixed inserted block (731) in slot (721).
7. An ecological gabion according to claim 6, characterised in that: the fixing mechanism (8) comprises an abutting block (81) connected to the slot (721) in a sliding manner along the length direction of the slot (721) and a spring (82) fixedly connected to one side, far away from the inserting block (731), of the abutting block (81); one end of the spring (82) far away from the abutting block (81) is fixedly connected to the inner wall of one end of the slot (721) far away from the inserting block (731); a second matching component for driving the abutting block (81) to move is arranged between the inserting block (731) and the abutting block (81).
8. An ecological gabion according to claim 7, characterised in that: the second cooperation subassembly is including setting up respectively in two inclined planes (83) of inserting piece (731) and butt joint piece (81) relative inboard, two inclined plane (83) phase-match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022247086.1U CN213448330U (en) | 2020-10-09 | 2020-10-09 | Ecological gabion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022247086.1U CN213448330U (en) | 2020-10-09 | 2020-10-09 | Ecological gabion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213448330U true CN213448330U (en) | 2021-06-15 |
Family
ID=76287422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022247086.1U Active CN213448330U (en) | 2020-10-09 | 2020-10-09 | Ecological gabion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213448330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668449A (en) * | 2021-09-01 | 2021-11-19 | 安徽安冉水利工程有限公司 | Hydraulic building engineering reinforcement type template |
| CN113699933A (en) * | 2021-09-30 | 2021-11-26 | 霍邱县铁矿建设工程有限责任公司 | Protective equipment for hydraulic engineering |
-
2020
- 2020-10-09 CN CN202022247086.1U patent/CN213448330U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668449A (en) * | 2021-09-01 | 2021-11-19 | 安徽安冉水利工程有限公司 | Hydraulic building engineering reinforcement type template |
| CN113699933A (en) * | 2021-09-30 | 2021-11-26 | 霍邱县铁矿建设工程有限责任公司 | Protective equipment for hydraulic engineering |
| CN113699933B (en) * | 2021-09-30 | 2023-02-14 | 霍邱县铁矿建设工程有限责任公司 | Protective equipment for hydraulic engineering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213448330U (en) | Ecological gabion | |
| CN113981954A (en) | Soft soil foundation reinforcing structure and method | |
| CN110535072A (en) | No-dig technique electric power cable lays pipe lining device and electric power cable laying method | |
| CN113653038B (en) | Anti-floating device, anti-floating rotary pile reinforcement cage and installation method | |
| CN216406718U (en) | Self-cleaning type oil exploitation drilling tool | |
| CN206458414U (en) | A kind of oil gas field coiled tubing wax removal apparatus for eliminating sludge | |
| CN113585976B (en) | Reaming device and multifunctional drilling and reaming hole forming equipment | |
| CN215482709U (en) | Hydraulic engineering slope protection structure of easily installing | |
| CN212026201U (en) | High-efficient type is pumping equipment for geological survey | |
| CN210685940U (en) | Scraper for inner wall of underground casing | |
| CN209277918U (en) | A kind of novel anchor rod spiral time quarter drilling tool | |
| JP3317398B2 (en) | Sealing method of spring water and gas in seismic observation well and plug structure used for it | |
| CN201915437U (en) | Measuring well dredger | |
| CN208996039U (en) | A kind of piling machine buffer unit in construction site | |
| CN219262323U (en) | Soft clay core withdrawing device for full-hydraulic drilling machine | |
| CN105772448B (en) | Marine marker attachment removes equipment | |
| CN214993991U (en) | Foundation structure | |
| CN220522473U (en) | Full-pile casing follow-up rotary drilling rig | |
| CN220620049U (en) | Foundation treatment device with protection function | |
| CN214883705U (en) | Inner supporting structure for foundation pit | |
| CN217840021U (en) | Underground foundation pit supporting device for building construction | |
| CN217734203U (en) | Underground silt cleaning device | |
| CN214886878U (en) | Drilling rig with mud removing device | |
| CN217976090U (en) | Slider reaming follow pipe drilling tool with positioning function and without forward and reverse rotation | |
| CN219710353U (en) | Anti-slip slope structure for slope protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210817 Address after: 237000 first floor, people's government office building, danjiamiao Town, Huoshan County, Lu'an City, Anhui Province Patentee after: ANHUI PIYUAN CONSERVANCY ENGINEERING Co.,Ltd. Address before: 237000 Dingji town government, Yu'an District, Lu'an City, Anhui Province Patentee before: Anhui Changda Construction Engineering Co.,Ltd. |