CN103850513A - Outdoor rod body construction method - Google Patents

Outdoor rod body construction method Download PDF

Info

Publication number
CN103850513A
CN103850513A CN201410117625.6A CN201410117625A CN103850513A CN 103850513 A CN103850513 A CN 103850513A CN 201410117625 A CN201410117625 A CN 201410117625A CN 103850513 A CN103850513 A CN 103850513A
Authority
CN
China
Prior art keywords
rod
stone bolt
nut
base board
flange dish
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.)
Granted
Application number
CN201410117625.6A
Other languages
Chinese (zh)
Other versions
CN103850513B (en
Inventor
杨法
张颖菁
张婕
贾文卓
黑锦惠
杜洋
甄雪灵
李立新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Tianjin Sanyuan Power Equipment Manufacturing Co Ltd
Original Assignee
Tianjin Sanyuan Power Equipment Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Sanyuan Power Equipment Manufacturing Co Ltd filed Critical Tianjin Sanyuan Power Equipment Manufacturing Co Ltd
Priority to CN201410117625.6A priority Critical patent/CN103850513B/en
Publication of CN103850513A publication Critical patent/CN103850513A/en
Application granted granted Critical
Publication of CN103850513B publication Critical patent/CN103850513B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Foundations (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention discloses an outdoor rod body construction method which comprises the following steps of digging a pit; putting a foundation bolt cage into the pit, and pre-burying the foundation bolt cage with sand; pouring concrete to fill the lower part of a base plate flange disk with the concrete; maintaining the concrete for 3-4 weeks, mounting first nuts on foundation bolts, then putting an inflatable cushion device on the base plate flange disk, wherein the inflatable cushion device comprises four inflatable cushions and controllers communicated with the inflatable cushions, and four buttons are arranged on the controllers and respectively control inflation and deflation of the four inflatable cushions; mounting a rod body, adjusting the perpendicularity of the rod body by performing inflation and deflation on the inflatable cushions, adjusting the first nuts when the rod body is in a vertical state, then screwing up second nuts for fixing a rod body flange disk, deflating the inflatable cushions, and pulling out the inflatable cushions from the lower surface of the rod body flange disk; performing secondary concrete pouring. The method is easy and convenient to operate; the effect of quick adjustment on the perpendicularity in outdoor rod body construction is achieved; defects caused by foundation construction and defects of a material are avoided, and the construction precision is high.

Description

A kind of outdoor body of rod construction method
Technical field
The invention belongs to the realm of building construction, particularly a kind of outdoor body of rod construction method.
Background technology
At present, before vertical rod, need to carry out foundation, pre-buried good base board flange dish and stone bolt, concrete plane basis levelling, is directly placed on body of rod flange on stone bolt when construction, after determining that with vertical or vertical collimator the body of rod is vertical, use nut screwing clamping flange, the body of rod is fixed.Because concrete plane is generally cement coating, levelness is not high; Body of rod flange in the bottom dish mostly is welding, also can not be guaranteed owing to welding reason or flange metal bottom surface self injustice thereby levelness, adds vertical instrument error, likely cause the verticality of the body of rod and bottom surface to produce deviation, and after the body of rod is fixing, if will finely tune the body of rod, very inconvenient.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of outdoor body of rod construction method, this method operating procedure is simple, convenient, solve the quick adjustment problem of verticality in outdoor body of rod construction, break away from the defect of foundation construction and material itself, construction precision is high, has also improved operating efficiency.
Technical scheme provided by the invention is:
A kind of outdoor body of rod construction method, comprises the following steps:
Step 1, the operation of digging pit;
Step 2, the stone bolt cage being made up of multiple stone bolt and base board flange dish is placed on described in step 1 in hole, pre-buried a part of sandy soil in described hole, adjust described stone bolt cage and make stone bolt in vertical state, and to make the vertical distance of described base board flange dish and ground line be 60~100mm
Step 3, in step 2, place in the hole of stone bolt cage, cast that lower side space that concrete makes described base board flange dish is full of concrete and the process cast in keep stone bolt in vertical state;
Step 4, to the concrete maintaining of casting in step 3 after 3~4 weeks, on the threaded portion above the described base board flange dish of being positioned at of each stone bolt, one first nut is all installed, then on base board flange dish, place an inflating pad device, described inflating pad device comprises four independently inflatable packer and the controllers that are all connected with described each inflatable packer, described four independently inflatable packer be evenly placed on described base board flange dish top, on described controller, be provided with four buttons, these four buttons are controlled respectively the inflation/deflation of described four inflatable packers;
Step 5, the body of rod is installed is enclosed within body of rod flange above described stone bolt and described body of rod flange is positioned at the top of described four inflatable packers and described multiple the first nuts, then adjust the verticality of the described body of rod by the inflation/deflation of described four inflatable packers, when vertical instrument records the body of rod in the time that vertical state and described body of rod flange and ground line are in same level, the first nut that adjustment is positioned at described body of rod flange below makes the body of rod described in described multiple the first nut support, then screw on the second nut of fixed core flange, make the body of rod in stationary state, then the gas in described four inflatable packers is bled off completely and released below body of rod flange,
Step 6, carry out for the second time concrete and cast the gap making between described body of rod flange and described base board flange dish and be full of concrete.
Preferably, described outdoor body of rod construction method, described inflatable packer is high-pressure aerated pad.
Preferably, described outdoor body of rod construction method, the concrete structure of described stone bolt cage is: on described base board flange dish, be provided with multiple bolts hole that penetrate base board flange dish, the quantity of described bolt hole equates with the quantity of described stone bolt, the upper end of described multiple stone bolt is provided with the first external screw thread, at a port closed of described the first external screw thread outside suit one nut and nut, the internal thread that the inner surface setting of described nut and the first external screw thread of stone bolt upper end adapt, the external surface of described nut is provided with the second external screw thread, the length of described nut is 2/3 of each stone bolt upper end the first external thread length, the upper end of described each stone bolt is provided with the second nut through the bolt hole of described base board flange dish and the below of base board flange dish and is fixed, the top of the described base board flange dish described nut of screwing on is fixed, the first nut in described step 4 is mounted on described nut.
Preferably; described outdoor body of rod construction method; before carrying out step 3, above the base board flange dish of stone bolt cage, cover the threaded portion of a protective cover with protection stone bolt, the setting that adapts of the shape of cross section of the shape of cross section of described protective cover and base board flange dish.
Preferably, described outdoor body of rod construction method, described protective cover is to be made up of Pearl wool material, is provided with foamed material in described protective cover the inside.
Preferably, described outdoor body of rod construction method, the bottom of described each stone bolt is alphabetical S shape along the Y of stone bolt.
Preferably, described outdoor body of rod construction method, the number of described stone bolt is 4,6 or 8.
Preferably, described outdoor body of rod construction method, is provided with plain cushion and bullet pad between described body of rod flange and the second nut, before being screwed into the second nut, is first screwed into plain cushion and bullet pad, and then is screwed into the second nut in step 5.
Preferably, described outdoor body of rod construction method, is provided with one deck overcoat on the surface of described stone bolt, and described overcoat is multi-component alloy co-cementation layer.
Outdoor body of rod construction method of the present invention, compared with prior art, the one, increase by the first nut and be placed on the inflating pad device above base board flange dish, adjust the verticality of the body of rod by this inflating pad device, when vertical instrument records the body of rod when vertical, tighten again the first nut and the second nut fixed core, the inflation/deflation process of inflatable packer is easy to control, can carry out accurate adjustment, and implement simple to operate, even if body of rod flange bottom injustice or base board flange dish carry out not having level-off when concrete is cast for the first time, at this moment as long as body of rod Uprightness adjusting, after fixing, carrying out concrete for the second time casts again, so more accurate, so also can save manpower, single or double cooperation can be finished the work.The 2nd, the stone bolt threaded portion adopting increases by a nut, the external surface of this nut is provided with external screw thread equally, so this nut can play the effect that steps up fixed base plate flange, after body of rod flange is enclosed within above nut, the first nut and the second nut can be fixed it, because threaded portion is through use and exposed easily damaged outside for a long time, if after the external screw thread on nut is damaged, can change, needn't extract entirely foot bolt, can re-use in the same old way, simple and convenient.The 3rd, the shape of the bottom of stone bolt is S shape, has increased the contact area of stone bolt lower end and concrete foundation, and stone bolt fixing-stable is reliable.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of outdoor body of rod construction method of the present invention.
Fig. 2 is the structural representation of stone bolt cage used in the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to manual word.
As shown in Figure 1, the invention provides a kind of outdoor body of rod construction method, comprise the following steps:
Step 1, the operation of digging pit according to demand;
Step 2, the stone bolt cage being made up of four stone bolt and base board flange dish is placed on described in step 1 in hole, the concrete structure of described stone bolt cage is as shown in Figure 2: on described base board flange dish 1, be provided with four bolts hole that penetrate base board flange dish, the upper end of described each stone bolt is provided with the first external screw thread, at a port closed of described the first external screw thread outside suit one nut 3 and nut, the internal thread that the inner surface setting of described nut 3 and the first external screw thread of stone bolt upper end adapt, the external surface of described nut is provided with the second external screw thread, the length of described nut is 2/3 of each stone bolt upper end the first external thread length, the upper end of described each stone bolt is provided with the second nut 5 through the bolt hole of described base board flange dish and the below of base board flange dish 1 and is fixed, the top of the described base board flange dish described nut 3 of screwing on is fixed, the bottom of described each stone bolt is alphabetical S shape 4 along the Y of stone bolt.Pre-buried a part of sandy soil in described hole, adjusting described stone bolt cage makes stone bolt in vertical state, and making described base board flange dish and the vertical distance of plane is peripherally 80mm, then above the base board flange dish of stone bolt cage, cover the threaded portion of a protective cover 6 with protection stone bolt, the setting that adapts of the shape of cross section of the shape of cross section of described protective cover 6 and base board flange dish, described protective cover 6 is to be made up of Pearl wool material, be provided with foamed material in described protective cover the inside, carry out like this in process that concrete casts, threaded portion is protected, make it not made dirty by concrete,
Step 3, in step 2, place in the hole of stone bolt cage, cast that lower side space that concrete makes described base board flange dish is full of concrete and the process cast in keep stone bolt in vertical state;
Step 4, to the concrete maintaining of casting in step 3 after 3 weeks, take down protective cover 6, on the external screw thread of the nut above the described base board flange dish of being positioned at of each stone bolt, one first nut is all installed, then on base board flange dish, place an inflating pad device, described inflating pad device comprises four independently inflatable packer and the controllers that are all connected with described each inflatable packer, inflatable packer is high-pressure aerated pad, controller is connected with the device of generation gases at high pressure, described four independently inflatable packer be evenly placed on described base board flange dish top, make can support the body of rod on four direction, on described controller, be provided with four buttons, these four buttons are controlled respectively the inflation/deflation of described four inflatable packers,
Step 5, the body of rod is installed is enclosed within body of rod flange above described stone bolt and described body of rod flange is positioned at the top of described four inflatable packers and described the first nut, then adjust the verticality of the described body of rod by the inflation/deflation of described four inflatable packers, when vertical instrument records the body of rod in the time that vertical state and described body of rod flange and ground line are in same level, the first nut that adjustment is positioned at described body of rod flange below makes the body of rod described in described four the first nut support, then be screwed into plain cushion and bullet pad, be screwed into again the second nut of fixed core flange, make the body of rod in stationary state, next the gas in described four inflatable packers is bled off completely and released below body of rod flange,
Step 6, carry out for the second time concrete and cast the gap making between described body of rod flange and described base board flange dish and be full of concrete.
Described outdoor body of rod construction method, the number of described stone bolt can be 4,6 or 8.
Described outdoor body of rod construction method, is provided with one deck overcoat on the surface of described stone bolt, described overcoat is multi-component alloy co-cementation layer.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in manual and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.

Claims (9)

1. an outdoor body of rod construction method, is characterized in that, comprises the following steps:
Step 1, the operation of digging pit;
Step 2, the stone bolt cage being made up of multiple stone bolt and base board flange dish is placed on described in step 1 in hole, pre-buried a part of sandy soil in described hole, adjust described stone bolt cage and make stone bolt in vertical state, and to make the vertical distance of described base board flange dish and ground line be 60~100mm
Step 3, in step 2, place in the hole of stone bolt cage, cast that lower side space that concrete makes described base board flange dish is full of concrete and the process cast in keep stone bolt in vertical state;
Step 4, to the concrete maintaining of casting in step 3 after 3~4 weeks, on the threaded portion above the described base board flange dish of being positioned at of each stone bolt, one first nut is all installed, then on base board flange dish, place an inflating pad device, described inflating pad device comprises four independently inflatable packer and the controllers that are all connected with described each inflatable packer, described four independently inflatable packer be evenly placed on described base board flange dish top, on described controller, be provided with four buttons, these four buttons are controlled respectively the inflation/deflation of described four inflatable packers;
Step 5, the body of rod is installed is enclosed within body of rod flange above described stone bolt and described body of rod flange is positioned at the top of described four inflatable packers and described multiple the first nuts, then adjust the verticality of the described body of rod by the inflation/deflation of described four inflatable packers, when vertical instrument records the body of rod in the time that vertical state and described body of rod flange and ground line are in same level, the first nut that adjustment is positioned at described body of rod flange below makes the body of rod described in described multiple the first nut support, then screw on the second nut of fixed core flange, make the body of rod in stationary state, then the gas in described four inflatable packers is bled off completely and released below body of rod flange,
Step 6, carry out for the second time concrete and cast the gap making between described body of rod flange and described base board flange dish and be full of concrete.
2. outdoor body of rod construction method as claimed in claim 1, is characterized in that, described inflatable packer is high-pressure aerated pad.
3. outdoor body of rod construction method as claimed in claim 2, it is characterized in that, the concrete structure of described stone bolt cage is: on described base board flange dish, be provided with multiple bolts hole that penetrate base board flange dish, the quantity of described bolt hole equates with the quantity of described stone bolt, the upper end of described multiple stone bolt is provided with the first external screw thread, at a port closed of described the first external screw thread outside suit one nut and nut, the internal thread that the inner surface setting of described nut and the first external screw thread of stone bolt upper end adapt, the external surface of described nut is provided with the second external screw thread, the length of described nut is 2/3 of each stone bolt upper end the first external thread length, the upper end of described each stone bolt is provided with the second nut through the bolt hole of described base board flange dish and the below of base board flange dish and is fixed, the top of the described base board flange dish described nut of screwing on is fixed, the first nut in described step 4 is mounted on described nut.
4. outdoor body of rod construction method as claimed in claim 3; it is characterized in that; before carrying out step 3; above the base board flange dish of stone bolt cage, cover the threaded portion of a protective cover with protection stone bolt, the setting that adapts of the shape of cross section of the shape of cross section of described protective cover and base board flange dish.
5. outdoor body of rod construction method as claimed in claim 4, is characterized in that, described protective cover is to be made up of Pearl wool material, is provided with foamed material in described protective cover the inside.
6. outdoor body of rod construction method as claimed in claim 5, is characterized in that, the bottom of described each stone bolt is alphabetical S shape along the Y of stone bolt.
7. outdoor body of rod construction method as claimed in claim 6, is characterized in that, the number of described stone bolt is 4,6 or 8.
8. outdoor body of rod construction method as claimed in claim 1, is characterized in that, is provided with plain cushion and bullet pad between described body of rod flange and the second nut, before being screwed into the second nut, is first screwed into plain cushion and bullet pad, and then is screwed into the second nut in step 5.
9. outdoor body of rod construction method as claimed in claim 1, is characterized in that, is provided with one deck overcoat on the surface of described stone bolt, and described overcoat is multi-component alloy co-cementation layer.
CN201410117625.6A 2014-03-26 2014-03-26 A kind of outdoor body of rod construction method Active CN103850513B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410117625.6A CN103850513B (en) 2014-03-26 2014-03-26 A kind of outdoor body of rod construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410117625.6A CN103850513B (en) 2014-03-26 2014-03-26 A kind of outdoor body of rod construction method

Publications (2)

Publication Number Publication Date
CN103850513A true CN103850513A (en) 2014-06-11
CN103850513B CN103850513B (en) 2016-05-18

Family

ID=50858620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410117625.6A Active CN103850513B (en) 2014-03-26 2014-03-26 A kind of outdoor body of rod construction method

Country Status (1)

Country Link
CN (1) CN103850513B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104264674A (en) * 2014-09-23 2015-01-07 国家电网公司 Vibrating method for preventing vibrating rod in concrete from bumping formwork
CN105661953A (en) * 2016-03-16 2016-06-15 深圳市丰巢科技有限公司 Express delivery cabinet installing ground foot and express delivery cabinet fixing device
CN105661954A (en) * 2016-03-16 2016-06-15 深圳市丰巢科技有限公司 Express delivery cabinet fixing method
CN106965134A (en) * 2017-05-16 2017-07-21 四川钰萌光电科技有限公司 Workbench and assembly method for assembling street lamp post flange chassis and pedestal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009033951A (en) * 2007-07-30 2009-02-12 Daewon Electric Co Ltd Method of construction work of circular arc shape aerial line electric pole under bracing member using expansion excavation unit for auger crane
CN101487355A (en) * 2009-02-23 2009-07-22 廖力锋 Telegraph pole and its mounting and fixing method
CN102296872A (en) * 2011-05-24 2011-12-28 天津市银龙预应力钢材集团有限公司 Method for connecting prestressed electric poles
US20120124919A1 (en) * 2009-05-05 2012-05-24 Aloys Wobben Method for erecting a tower, and tower
CN102733640A (en) * 2012-06-28 2012-10-17 芜湖中泰新能源有限公司 Base used for fixedly installing light pole, telegraph pole and high-tension wire tower and installation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009033951A (en) * 2007-07-30 2009-02-12 Daewon Electric Co Ltd Method of construction work of circular arc shape aerial line electric pole under bracing member using expansion excavation unit for auger crane
CN101487355A (en) * 2009-02-23 2009-07-22 廖力锋 Telegraph pole and its mounting and fixing method
US20120124919A1 (en) * 2009-05-05 2012-05-24 Aloys Wobben Method for erecting a tower, and tower
CN102296872A (en) * 2011-05-24 2011-12-28 天津市银龙预应力钢材集团有限公司 Method for connecting prestressed electric poles
CN102733640A (en) * 2012-06-28 2012-10-17 芜湖中泰新能源有限公司 Base used for fixedly installing light pole, telegraph pole and high-tension wire tower and installation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104264674A (en) * 2014-09-23 2015-01-07 国家电网公司 Vibrating method for preventing vibrating rod in concrete from bumping formwork
CN104264674B (en) * 2014-09-23 2016-05-04 国家电网公司 A kind of method that inside concrete vibrating spear anti-collision template is vibrated
CN105661953A (en) * 2016-03-16 2016-06-15 深圳市丰巢科技有限公司 Express delivery cabinet installing ground foot and express delivery cabinet fixing device
CN105661954A (en) * 2016-03-16 2016-06-15 深圳市丰巢科技有限公司 Express delivery cabinet fixing method
CN106965134A (en) * 2017-05-16 2017-07-21 四川钰萌光电科技有限公司 Workbench and assembly method for assembling street lamp post flange chassis and pedestal
CN106965134B (en) * 2017-05-16 2023-08-18 四川钰萌光电科技有限公司 Working platform for assembling flange chassis and base of street lamp post and assembling method

Also Published As

Publication number Publication date
CN103850513B (en) 2016-05-18

Similar Documents

Publication Publication Date Title
CN102061746B (en) Steel structure assembled embedded part and construction method thereof
CN101250881B (en) Method for installation of seat slurry method construction packing plate
CN103850513A (en) Outdoor rod body construction method
CN204385905U (en) For the replaceable bolt embedment device of large equipment base
CN104895318A (en) Aluminum alloy template system and construction method of same
CN205676785U (en) Leveling block formwork for placing device at the bottom of a kind of Bridge Support Replacement beam
CN102926538A (en) Reaction box and construction method of reaction wall
CN103397729A (en) NZ internal mold anti-floating construction method
CN105908887A (en) Airbag core mold component cast hollow floor construction method
CN106320715A (en) Method for mounting and constructing large I-shaped cant pre-embedded parts
CN104032969A (en) Precise positioning and process regulation and control device for vibration isolation support embedded plate
CN104179191B (en) Nuclear power plant's main equipment basement construction method
CN109179222B (en) Construction method for controlling inclination and levelness of embedded joint of tower crane
JP2001059343A (en) Concrete placement method for forming slab, and support tool for guide rail used therefor
JP4903294B1 (en) Pipe support bracket
CN203924103U (en) The outdoor GIS post-install of a kind of assembled height-adjustable
CN204343319U (en) Cableway pipe patten pre-embedded anchoring bolts jig
CN105696796A (en) Cantilever scaffold steel girder anchoring method
CN208167781U (en) A kind of levelling mounting structure of backing plate
CN203834507U (en) Large tower locating device
CN106836198A (en) Positioner combined steel formwork bored concrete pile and construction method
CN203346897U (en) Foundation raft embedded steel column positioning support
CN209339179U (en) Levelling pre-buried structure for large scale equipment installation
CN204944936U (en) A kind of Multifunctional self-leveling weighing apparatus formula continuous beam test counter-force loading frame
CN203160707U (en) Adjustable t-shaped controller

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: STATE GRID CORPORATION OF CHINA

Free format text: FORMER OWNER: TIANJIN SANYUAN ELECTRIC POWER EQUIPMENT MANUFACTURING CO., LTD.

Effective date: 20141203

Owner name: TIANJIN SANYUAN ELECTRIC POWER EQUIPMENT MANUFACTU

Effective date: 20141203

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 300409 BEICHEN, TIANJIN TO: 100031 XICHENG, BEIJING

TA01 Transfer of patent application right

Effective date of registration: 20141203

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Applicant after: State Grid Corporation of China

Applicant after: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd.

Address before: 300409 Tianjin City, Beichen science and Technology Park North Road No. 8 in Liaohe

Applicant before: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd.

C53 Correction of patent of invention or patent application
CB02 Change of applicant information

Address after: 300010 Tianjin city Hebei District Wujing Road No. 39

Applicant after: State Grid Corporation of China

Applicant after: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd.

Address before: 100031 West Chang'an Avenue, Beijing, No. 86

Applicant before: State Grid Corporation of China

Applicant before: Tianjin Sanyuan Power Equipment Manufacturing Co., Ltd.

C14 Grant of patent or utility model
GR01 Patent grant