CN210054124U - Energy-conserving irrigation system of afforestation - Google Patents
Energy-conserving irrigation system of afforestation Download PDFInfo
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- CN210054124U CN210054124U CN201920601130.9U CN201920601130U CN210054124U CN 210054124 U CN210054124 U CN 210054124U CN 201920601130 U CN201920601130 U CN 201920601130U CN 210054124 U CN210054124 U CN 210054124U
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The utility model relates to the technical field of landscaping irrigation, in particular to a landscaping energy-saving irrigation system, which comprises a main pipeline, a T-shaped pipe, a water source pipe, a controller, two water storage devices and a plurality of water seepage pipes, wherein one end of the T-shaped pipe is arranged at the lower end of the main pipeline, the upper end of the main pipeline is connected with the two water storage devices through a tee joint, the water source pipe is arranged between the two water storage devices and is communicated with the upper ends of the two water storage devices through a water inlet pipe, the water inlet pipe is connected with the water source pipe through a first electromagnetic valve, the first electromagnetic valve is arranged on the water source pipe and the water inlet pipe and is positioned between the two water storage devices, the controller is arranged on the first electromagnetic valve, all the water seepage pipes are uniformly arranged on the T-shaped pipe and are communicated with the T-shaped pipe, and the first electromagnetic valve is electrically connected with the controller, and rainwater and dew can be collected, so that more energy is saved.
Description
Technical Field
The utility model relates to an afforestation irrigation technical field, concretely relates to energy-conserving irrigation system of afforestation.
Background
The garden landscape aims to build a green environment through garden lawns and plants, modern gardens aim at improving the ecological environment while emphasizing the construction of landscape commodities, garden-type cities are built, green land systems are arranged in the whole city, roads and rest places are arranged, urban garden is achieved, natural ecological parks including road landscape lines and green forest lawns are built, the natural ecological parks are used for beautifying the cities, the cities are more beautiful, people and nature are more harmonious, and the garden landscape construction is implemented according to the requirements of a water-saving society.
The garden irrigation system pays attention to the requirement of matching with water demand of plants, takes water conservation and energy conservation into consideration, is convenient and practical, and can be divided into two modes of ground irrigation and underground irrigation in the current forestry irrigation mode, particularly in the irrigation mode of precious trees or landscape trees. Ground irrigation adopts sprinkling irrigation, drips irrigation etc. more, and this kind of mode can satisfy vegetation to the demand of moisture, but at the in-process of in-service use, ground intermittent type formula sprinkling irrigation need use a large amount of water and consume a large amount of power to inevitable messenger's plant is in short-lived waterlogging repeatedly at its overall process of growing, because the sprinkling irrigation can not spray the top of higher plant, and irrigation effect is not good, also can not wash the earth on the plant foliage.
When the water resource is more and more scarce, and at present numerous gardens irrigation equipment is more, nevertheless all supplies water for equipment through other modes, and the function of natural rainwater is not collected to equipment, and the scope of use receives very big limitation. Whether plant lacks water and irrigate through artificial perception judgement plant during irrigation mostly, and the artificial accuracy of judging is poor, and the watering excessively leads to the plant to receive the waterlogging, and the watering is not enough to lead to the plant arid lack of water again. Therefore, an intelligent and energy-saving garden irrigation system is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an energy-conserving irrigation system of afforestation.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides an energy-conserving irrigation system of afforestation, including the trunk line, T type pipe, the water supply pipe, a controller, two water storage device and a plurality of infiltration pipe, the one end setting of T type pipe is at the lower extreme of trunk line, the upper end of trunk line is connected with two water storage device through the tee bend head, the water supply pipe sets up between two water storage device and communicates through the upper end of inlet tube and two water storage device, the inlet pipe is connected with the water supply pipe through first solenoid valve, first solenoid valve sets up on water supply pipe and inlet tube and is located between two water storage device, the controller sets up on first solenoid valve, all infiltration pipe all evenly set up on T type pipe and communicate with T type pipe, the electricity is connected between first solenoid valve and the controller.
As an energy-conserving irrigation system of afforestation preferred scheme, two water storage facilities all includes the water storage bucket, the connecting pipe, filter and water collection mechanism, the one end setting of connecting pipe just communicates at the lower extreme of water storage bucket and with the water storage bucket, the other end of connecting pipe passes through the second solenoid valve to be connected with the upper end of trunk line, the second solenoid valve setting between trunk line and connecting pipe and with the two intercommunication, the filter slope sets up in the water storage bucket, water collection mechanism passes through the support frame setting in the top of water storage bucket, support frame detachable sets up on the axis of water storage bucket, the upper end and the inlet tube intercommunication of water storage bucket, the second solenoid valve is connected with the controller electricity.
As an optimal scheme of energy-conserving irrigation system of afforestation, the mechanism that catchments includes toper water-collecting tray, lifting screw and rotatory cutting ferrule, and the lower extreme of toper water-collecting tray is little opening and just to the upper end of water storage bucket, and the vertical fixed setting of lifting screw is on the support frame, and toper water-collecting tray can die on rotatory cutting ferrule through the link pivoted card, and rotatory cutting ferrule cover is established on lifting screw and is connect soon with lifting screw, and the link is fixed to be set up in the big opening of the upper end of toper water-collecting tray.
As an optimal selection scheme of energy-conserving irrigation system of afforestation, the lower extreme of water storage bucket is provided with drain and sealing plug, the lower extreme butt of the filter of drain and slope, and the sealing plug articulates in the outside of water storage bucket and seals with the drain cooperation.
As a preferred scheme of energy-conserving irrigation system of afforestation, the one end that the inlet tube is located the water storage bucket is provided with a plurality of drift, and every drift all faces the inner wall or the below of water storage bucket and every drift all is located the top of filter.
As a preferred scheme of the energy-conserving irrigation system of afforestation, all be provided with humidity transducer on every infiltration pipe, every humidity transducer all is connected with the controller electricity.
The utility model has the advantages that: when through the water source pipe water storage, the first solenoid valve of controller control is opened, and rivers pass through in the inlet tube gets into the water storage bucket, when needing irrigation again, the second solenoid valve of controller control is opened, and the water in the water storage bucket flows into the connecting pipe after filtering, gets into the infiltration pipe through trunk line and T type pipe reposition of redundant personnel, and water collecting mechanism is used for collecting rainwater and dew, and can reduce the water evaporation in the water storage bucket. In order to prevent that the water in the water storage bucket from being evaporated daytime, can promote link and toper water-collecting tray through rotatory cutting ferrule and move on lifting screw's axis direction, make the lower conical surface of toper water-collecting tray and the top laminating of water storage bucket, cover the top of water storage bucket, when rainy day, can collect the rainwater through the last conical surface of toper water-collecting tray, the rainwater flows into the water storage bucket through the little opening of toper water-collecting tray, at night, rise the toper water-collecting tray, because the vapor in the air that the difference in temperature leads to round the clock liquefies into water and flows into in the water storage bucket at the lower conical surface of toper water-collecting tray. Because irrigation water and rainwater all contain impurity, these impurity pile up and block up the pipeline easily, and the filter can filter most impurity, and filterable impurity can discharge through the drain. Rivers are through inlet tube and drift entering water storage bucket in, when needs are cleared up accumulational impurity on the filter in the water storage bucket, can open the sealing plug and discharge the log raft in the water storage bucket, then open first solenoid valve, let rivers wash the filter through each drift, pass through the drain with impurity and discharge. The humidity sensor transmits corresponding data information to the controller by sensing soil humidity, and the controller judges whether irrigation conditions are met according to the transmitted data information. Satisfy the irrigation condition, the second solenoid valve is opened in the controller control for in the water of water storage bucket flows into the infiltration pipe through trunk line and T type pipe, the infiltration pipe is oozed to water and plants are irrigated. The utility model discloses simple structure, intelligent environmental protection can judge by oneself whether the gardens in the plant need irrigate, and can collect rainwater and dew, and is more energy-conserving.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the partially disassembled three-dimensional structure of the present invention.
In the figure: main pipe 1, T type pipe 2, water source pipe 3, controller 4, water storage device 5, infiltration pipe 6, tee bend 7, inlet tube 8, first solenoid valve 9, water storage bucket 5a, connecting pipe 5b, filter 5c, water-collecting mechanism 5d, second solenoid valve 5e, support frame 5f, humidity transducer 6a, drift 8a, drain 5a1, sealing plug 5a2, toper water-collecting tray 5d1, lifting screw 5d2, rotatory cutting ferrule 5d3, connecting frame 5d 4.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2 energy-conserving irrigation system of afforestation, including trunk line 1, T type pipe 2, water source pipe 3, controller 4, two water storage device 5 and a plurality of infiltration pipe 6, the one end setting of T type pipe 2 is at the lower extreme of trunk line 1, trunk line 1's upper end is connected with two water storage device 5 through tee bend 7, water source pipe 3 sets up between two water storage device 5 and through the upper end intercommunication of inlet tube 8 with two water storage device 5, inlet tube 8 is connected with water source pipe 3 through first solenoid valve 9, first solenoid valve 9 sets up on water source pipe 3 and inlet tube 8 and is located between two water storage device 5, controller 4 sets up on first solenoid valve 9, all infiltration pipe 6 evenly set up on T type pipe 2 and communicate with T type pipe 2, the electricity is connected between first solenoid valve 9 and the controller 4.
Two water storage device 5 all includes water storage bucket 5a, connecting pipe 5b, filter 5c and water collecting mechanism 5d, the one end setting of connecting pipe 5b is at the lower extreme of water storage bucket 5a and communicate with water storage bucket 5a, the other end of connecting pipe 5b passes through second solenoid valve 5e and is connected with the upper end of trunk line 1, second solenoid valve 5e set up between trunk line 1 and connecting pipe 5b and communicate with the two, the slope of filter 5c sets up in water storage bucket 5a, water collecting mechanism 5d passes through the support frame 5f and sets up in the top of water storage bucket 5a, support frame 5f detachable sets up on the axis of water storage bucket 5a, the upper end and the inlet tube 8 intercommunication of water storage bucket 5a, second solenoid valve 5e is connected with controller 4 electricity. When storing water through water source pipe 3, controller 4 controls first solenoid valve 9 to open, and rivers pass through in inlet tube 8 gets into water storage bucket 5a, when needing irrigation again, controller 4 controls second solenoid valve 5e and opens, and the water in the water storage bucket 5a flows into connecting pipe 5b after filtering, gets into infiltration pipe 6 through trunk line 1 and the reposition of redundant personnel of T type pipe 2, and water collecting mechanism 5d is used for gathering rainwater and dew, and can reduce the water evaporation in the water storage bucket 5 a.
The water collecting mechanism 5d comprises a conical water collecting disc 5d1, a lifting screw 5d2 and a rotary clamping sleeve 5d3, the lower end of the conical water collecting disc 5d1 is a small opening and faces the upper end of the water storage barrel 5a, the lifting screw 5d2 is vertically and fixedly arranged on the support frame 5f, the conical water collecting disc 5d1 can be clamped on the rotary clamping sleeve 5d3 in a rotating mode through a connecting frame 5d4, the rotary clamping sleeve 5d3 is sleeved on the lifting screw 5d2 and is in screwed connection with the lifting screw 5d2, and the connecting frame 5d4 is fixedly arranged at a large opening in the upper end of the conical water collecting disc 5d 1. In order to prevent the water in the water storage barrel 5a from being evaporated in daytime, the connecting frame 5d4 and the conical water collection tray 5d1 can be pushed to move in the axial direction of the lifting screw 5d2 by rotating the rotating cutting sleeve 5d3, so that the lower conical surface of the conical water collection tray 5d1 is attached to the top of the water storage barrel 5a, the top of the water storage barrel 5a is covered, rainwater can be collected by the upper conical surface of the conical water collection tray 5d1 in rainy days, the rainwater flows into the water storage barrel 5a through the small opening of the conical water collection tray 5d1, the conical water collection tray 5d1 is lifted in night, and water vapor in the air due to the temperature difference between day and night is liquefied into water on the lower conical surface of the conical water collection tray 5d1 and flows into the water storage barrel 5 a.
The lower end of the water storage barrel 5a is provided with a drain outlet 5a1 and a sealing plug 5a2, the lower end of the drain outlet 5a1 is abutted against the lower end of the inclined filter plate 5c, and the sealing plug 5a2 is hinged on the outer side of the water storage barrel 5a and is matched and sealed with the drain outlet 5a 1. Since both irrigation water and rainwater contain impurities, the impurities accumulate to easily block the pipeline, and the filter plate 5c can filter most of the impurities, and the filtered impurities can be discharged through the drain outlet 5a 1.
One end of the water inlet pipe 8, which is positioned in the water storage barrel 5a, is provided with a plurality of punches 8a, each punch 8a faces to the inner wall or the lower part of the water storage barrel 5a, and each punch 8a is positioned above the filter plate 5 c. In water flow gets into water storage bucket 5a through inlet tube 8 and drift 8a, when the accumulational impurity clearance on the filter 5c in the needs water storage bucket 5a, can open the water discharge of sealing plug 5a2 in with water storage bucket 5a, then open first solenoid valve 9, let rivers wash filter 5c through each drift 8a, discharge impurity through drain 5a 1.
Each water seepage pipe 6 is provided with a humidity sensor 6a, and each humidity sensor 6a is electrically connected with the controller 4. The humidity sensor 6a senses the soil humidity and transmits corresponding data information to the controller 4, and the controller 4 judges whether irrigation conditions are met according to the transmitted data information.
The working principle is as follows: when storing water through water source pipe 3, controller 4 controls first solenoid valve 9 to open, and rivers pass through in inlet tube 8 gets into water storage bucket 5a, when needing irrigation again, controller 4 controls second solenoid valve 5e and opens, and the water in the water storage bucket 5a flows into connecting pipe 5b after filtering, gets into infiltration pipe 6 through trunk line 1 and the reposition of redundant personnel of T type pipe 2, and water collecting mechanism 5d is used for gathering rainwater and dew, and can reduce the water evaporation in the water storage bucket 5 a. In order to prevent the water in the water storage barrel 5a from being evaporated in daytime, the connecting frame 5d4 and the conical water collection tray 5d1 can be pushed to move in the axial direction of the lifting screw 5d2 by rotating the rotating cutting sleeve 5d3, so that the lower conical surface of the conical water collection tray 5d1 is attached to the top of the water storage barrel 5a, the top of the water storage barrel 5a is covered, rainwater can be collected by the upper conical surface of the conical water collection tray 5d1 in rainy days, the rainwater flows into the water storage barrel 5a through the small opening of the conical water collection tray 5d1, the conical water collection tray 5d1 is lifted in night, and water vapor in the air due to the temperature difference between day and night is liquefied into water on the lower conical surface of the conical water collection tray 5d1 and flows into the water storage barrel 5 a. Since both irrigation water and rainwater contain impurities, the impurities accumulate to easily block the pipeline, and the filter plate 5c can filter most of the impurities, and the filtered impurities can be discharged through the drain outlet 5a 1. In water flow gets into water storage bucket 5a through inlet tube 8 and drift 8a, when the accumulational impurity clearance on the filter 5c in the needs water storage bucket 5a, can open the water discharge of sealing plug 5a2 in with water storage bucket 5a, then open first solenoid valve 9, let rivers wash filter 5c through each drift 8a, discharge impurity through drain 5a 1. Humidity transducer 6a passes through perception soil moisture, passes to controller 4 with corresponding data information, and controller 4 judges whether to satisfy the irrigation condition according to the data information of transmission, satisfies the irrigation condition, and second solenoid valve 5e is opened in controller 4 control for water in the water storage bucket 5a passes through in trunk line 1 and the inflow infiltration pipe 6 of T type pipe 2, and the infiltration pipe 6 is oozed to the water.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (6)
1. An energy-saving irrigation system for landscaping, which is characterized by comprising a main pipeline (1), a T-shaped pipe (2), a water source pipe (3), a controller (4), two water storage devices (5) and a plurality of water seepage pipes (6), wherein one end of the T-shaped pipe (2) is arranged at the lower end of the main pipeline (1), the upper end of the main pipeline (1) is connected with the two water storage devices (5) through a tee joint (7), the water source pipe (3) is arranged between the two water storage devices (5) and is communicated with the upper ends of the two water storage devices (5) through a water inlet pipe (8), the water inlet pipe (8) is connected with the water source pipe (3) through a first electromagnetic valve (9), the first electromagnetic valve (9) is arranged on the water source pipe (3) and the water inlet pipe (8) and is positioned between the two water storage devices (5), the controller (4) is arranged on the first electromagnetic valve (9), all the water seepage pipes (6) are uniformly arranged on the T-shaped pipe (2) and are communicated with, the first electromagnetic valve (9) is electrically connected with the controller (4).
2. An energy-saving irrigation system for landscaping according to claim 1, wherein each of the two water storage devices (5) comprises a water storage barrel (5 a), a connecting pipe (5 b), a filter plate (5 c) and a water collecting mechanism (5 d), one end of the connecting pipe (5 b) is arranged at the lower end of the water storage barrel (5 a) and is communicated with the water storage barrel (5 a), the other end of the connecting pipe (5 b) is connected with the upper end of the main pipe (1) through a second electromagnetic valve (5 e), the second electromagnetic valve (5 e) is arranged between the main pipe (1) and the connecting pipe (5 b) and is communicated with the main pipe and the main pipe, the filter plate (5 c) is obliquely arranged in the water storage barrel (5 a), the water collecting mechanism (5 d) is arranged above the water storage barrel (5 a) through a support frame (5 f), the support frame (5 f) is detachably arranged on the axis of the water storage barrel (5 a), the upper end of the water storage barrel (5 a) is communicated with the water inlet pipe (8), and the second electromagnetic valve (5 e) is electrically connected with the controller (4).
3. The energy-saving irrigation system for landscaping according to claim 2, wherein the water collection mechanism (5 d) comprises a conical water collection tray (5 d 1), a lifting screw (5 d 2) and a rotary cutting sleeve (5 d 3), the lower end of the conical water collection tray (5 d 1) is a small opening and faces the upper end of the water storage barrel (5 a), the lifting screw (5 d 2) is vertically and fixedly arranged on the support frame (5 f), the conical water collection tray (5 d 1) can be rotationally clamped on the rotary cutting sleeve (5 d 3) through a connecting frame (5 d 4), the rotary cutting sleeve (5 d 3) is sleeved on the lifting screw (5 d 2) and is rotatably connected with the lifting screw (5 d 2), and the connecting frame (5 d 4) is fixedly arranged at a large opening at the upper end of the conical water collection tray (5 d 1).
4. An energy-saving irrigation system for landscaping according to claim 3, wherein the lower end of the water storage barrel (5 a) is provided with a drain outlet (5 a 1) and a sealing plug (5 a 2), the lower end of the drain outlet (5 a 1) is abutted against the lower end of the inclined filter plate (5 c), and the sealing plug (5 a 2) is hinged at the outer side of the water storage barrel (5 a) and is matched and sealed with the drain outlet (5 a 1).
5. An energy-saving irrigation system for landscaping according to claim 2 wherein the end of the water inlet pipe (8) inside the water storage barrel (5 a) is provided with a plurality of punches (8 a), each punch (8 a) faces the inner wall of the water storage barrel (5 a) or below and each punch (8 a) is above the filter plate (5 c).
6. An energy-saving irrigation system for landscaping according to claim 1, wherein each of said water seepage pipes (6) is provided with a humidity sensor (6 a), and each humidity sensor (6 a) is electrically connected with the controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920601130.9U CN210054124U (en) | 2019-04-28 | 2019-04-28 | Energy-conserving irrigation system of afforestation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920601130.9U CN210054124U (en) | 2019-04-28 | 2019-04-28 | Energy-conserving irrigation system of afforestation |
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| Publication Number | Publication Date |
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| CN210054124U true CN210054124U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920601130.9U Active CN210054124U (en) | 2019-04-28 | 2019-04-28 | Energy-conserving irrigation system of afforestation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113229120A (en) * | 2021-06-01 | 2021-08-10 | 贵州师范大学 | Energy-concerving and environment-protective forestry device of growing seedlings |
| CN115362923A (en) * | 2022-09-26 | 2022-11-22 | 中国科学院新疆生态与地理研究所 | Desert oasis transition zone environment restoration water saving device |
-
2019
- 2019-04-28 CN CN201920601130.9U patent/CN210054124U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113229120A (en) * | 2021-06-01 | 2021-08-10 | 贵州师范大学 | Energy-concerving and environment-protective forestry device of growing seedlings |
| CN115362923A (en) * | 2022-09-26 | 2022-11-22 | 中国科学院新疆生态与地理研究所 | Desert oasis transition zone environment restoration water saving device |
| CN115362923B (en) * | 2022-09-26 | 2023-09-08 | 中国科学院新疆生态与地理研究所 | Desert oasis transition zone environment restoration water-saving device |
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Address after: 518000 Minzhi Street Minle community Minle Industrial Park Minle Hotel 5abgh, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Huasheng Construction Group Co.,Ltd. Address before: 518000 Minzhi Street Minle community Minle Industrial Park Minle Hotel 5abgh, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Huasheng Construction Engineering Co.,Ltd. |
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