CN110617865A - Safety warning device of cross-channel power transmission line - Google Patents

Safety warning device of cross-channel power transmission line Download PDF

Info

Publication number
CN110617865A
CN110617865A CN201910894679.6A CN201910894679A CN110617865A CN 110617865 A CN110617865 A CN 110617865A CN 201910894679 A CN201910894679 A CN 201910894679A CN 110617865 A CN110617865 A CN 110617865A
Authority
CN
China
Prior art keywords
floating body
safety warning
transmission line
power transmission
warning device
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.)
Pending
Application number
CN201910894679.6A
Other languages
Chinese (zh)
Inventor
姚素刚
高涛
王涛
孙弘
孙毅
王超
张敬敏
李飞
曾素茹
刘林康
刘璐
吴士伟
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
Weishan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Weishan Power Supply Co of State Grid Shandong Electric Power 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 State Grid Corp of China SGCC, Weishan Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201910894679.6A priority Critical patent/CN110617865A/en
Publication of CN110617865A publication Critical patent/CN110617865A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/04Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by dip members, e.g. dip-sticks

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

The utility model provides a cross channel transmission line's safety warning device through setting up body and vertical setting and multistage cascaded bracing piece for the height of body can not change along with the change of water level, can effectively instruct current water level. The supporting rods in the multistage cascade connection can realize the relative inclination of the adjacent connecting supports, and the supporting rods are prevented from being damaged when being touched by ships. The ship can go back to just under the buoyancy effect of body when the ship process, and the bracing piece gets back to vertical state, guarantees under the natural state this device and can effectively instruct to play the warning effect.

Description

Safety warning device of cross-channel power transmission line
Technical Field
The utility model relates to a safe relevant technical field of transmission of electricity, specific saying so relates to a cross channel transmission line's safety warning device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The construction and management of the overhead power transmission and distribution lines are restricted by the geographical environment of the lake region, and the problem of crossing with inland waterway and fish pond exists, namely, the power transmission lines cross from the upper part of the inland waterway or the water surface of the fish pond, for example, the largest fresh water lake in the north of China, namely the Weishan lake, Luxi south, the lake region area occupies two thirds of the Weishan county, most of the power transmission and distribution lines in the whole county are located in the marshland or the lake surface, and the number of the power transmission and distribution lines crossing the waterway is 59 at present. Along with the change in rich and dry seasons, the fluctuation of the water level of the inland waterway is large, hidden dangers exist in the distance from the power transmission and distribution line to a running ship, the ship is easy to scrape and touch the power transmission and distribution line, safety accidents occur, the line is disconnected, power is cut off, and personal casualties can be caused seriously. The arrangement of a striking warning device is an effective means for avoiding such accidents, and meanwhile, the warning device can also play a role in avoiding legal liability, and plays a vital role in avoiding economic loss for companies. When the flood season comes, due to the fact that the water level of a channel rises in the flood season, the situation that the vertical distance between a passing ship and a channel-crossing power transmission line is smaller than the safe distance possibly exists, and the condition that the exceeding-tonnage ship only breaks rules and regulations (violates the rules) brings a lot of hidden dangers to the power line crossing the channel.
The safety warning device that uses now is the high warning sign of circuit of an old-fashioned formula, and the warning sign is located the river course top, and the humiture makes the warning sign corrode very fast, fades, and it is many to rust to appear, and the security of this type of warning device under current environment has obviously descended, and factor of safety is low, also very easily is destroyed by external force to reduce the power supply reliability. The height warning signs are hung on the crossed lines, fixed height values are marked, and the phenomenon of discharging is easily caused when the inter-phase distance of the wires is shortened when the wires are hung on the wires in a wind and rain mode. The device is not directly hung on a power transmission line and cannot achieve the purpose of timely reminding. If the warning piles are erected below the crossed lines, the warning piles easily occupy the channel corridor to form obstacles.
Disclosure of Invention
The safety warning device comprises a floating body, a vertical support rod and a multistage cascade support rod, wherein the vertical support rod is arranged on the floating body, the support rod is vertically arranged, the support rod is connected with the floating body in a multistage cascade mode, the height of the floating body cannot change along with the change of the water level, and the current water level can be effectively indicated. The supporting rods in the multistage cascade connection can realize the relative inclination of the adjacent connecting supports, and the supporting rods are prevented from being damaged when being touched by ships. Can go back just under the buoyancy of body when the ship passes through, the bracing piece gets back to vertical state, guarantees under the natural condition that this device can effectively indicate and play the warning effect.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
one or more embodiments provide a safety warning device for a cross-channel power transmission line, which comprises a floating body arranged on the water surface, and a supporting rod fixedly connected with the lower end of the floating body, wherein the supporting rod is vertically arranged at the water bottom; the material density of the floating body is lower than that of water, the outer diameter of the supporting rod is smaller than that of the floating body, the supporting rod is of a multi-section cascade structure, and two adjacent sections of the supporting rods are connected through movable sections.
Furthermore, the movable joint comprises a spherical body and a cladding body, the cladding body is hollow, the inner surface of the cladding body is a gap which is matched with the spherical body in shape and is set at intervals, the spherical body is fixedly connected with the end face of one section of the supporting rod, and the cladding body is connected with the end face of the other section of the supporting rod.
Further, the floating body comprises a floating body base part and a floating body upper section, the floating body base part and the floating body upper section of the floating body are made of the same material, and the weight of the floating body upper section is smaller than that of the floating body base part.
Furthermore, the shape of the floating body is columnar, the upper section of the floating body is a truncated cone or a cone, the bottom circle of the truncated cone or the cone is smaller than or equal to the size of the section circle of the floating body, and the height of the truncated cone or the cone is smaller than that of the floating body.
Further, the floating body is a solid body, the upper section of the floating body is hollow, and the hollow area is arranged in a sealing mode.
Furthermore, the floating body is made of foam; or the support rod is made of plastic.
Furthermore, the outer surface of the floating body can be provided with a reflective sticker.
Further, the outer surface of the floating body can be provided with a distance marking area for marking the distance from the water surface to the power transmission line.
Further, still include the safety warning sign, the safety warning sign sets up on the up end of body.
Furthermore, a vertical inserting groove is formed in the upper end face of the floating body, and the safety warning board is arranged in the inserting groove.
Compared with the prior art, the beneficial effect of this disclosure is:
(1) this disclosure is through setting up body and vertical setting and multistage cascaded bracing piece for the height of body can not change along with the change of water level, can effectively instruct current water level. The supporting rods in the multistage cascade connection can realize the relative inclination of the adjacent connecting supports, and the supporting rods are prevented from being damaged when being touched by ships. The ship can go back to just under the buoyancy effect of body when the ship process, and the bracing piece gets back to vertical state, guarantees under the natural state this device and can effectively instruct to play the warning effect.
(2) The upper end of the floating body is lighter in weight and can be easily positioned at the upper end, and the floating body can be easily positioned on the water surface after the safety warning board is arranged.
(3) The movable joint can protect the supporting rods from being damaged, is arranged between the adjacent supporting rods and is not arranged on the water bottom surface, and the damage of sundries entering the movable joint is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
FIG. 1 is a schematic structural diagram of an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a support bar according to an embodiment of the present disclosure;
wherein: 1. the device comprises a floating body 1-1, a floating body upper section 1-2, a floating body base 2, a support rod 2-1, one section of the support rod 2-2, the other section of the support rod 3, a movable section 3-1, a spheroid 3-2, a cladding body 3-3, a gap 4, a ground anchor stone 5, a safety warning board 6, a water surface 7 and a power transmission line.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments in the present disclosure may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.
In the technical solutions disclosed in one or more embodiments, as shown in fig. 1, a safety warning device for a power transmission line across a channel is used for being arranged at the periphery of the channel below the power transmission line 7 and prompting passing ships to pass through the safety height of the channel below the power transmission line 7, and comprises a floating body 1 arranged on a water surface 6 and a support rod 2 fixedly connected with the lower end of the floating body 1, wherein the support rod is vertically arranged at the water bottom; the density of the material of the floating body is lower than that of water, the outer diameter of the supporting rod is smaller than that of the floating body, the supporting rod 2 is of a multi-section cascade structure, and two adjacent sections of the supporting rods 2 are connected through movable sections 3. The connection of the movable joint 3 can realize the relative rotation and inclination of two adjacent support rods. The outer diameter of the floating body 1 is far larger than that of the supporting rod 2, so that the supporting rod 2 is always in a vertical state under the buoyancy action of the floating body 1. The materials of the floating body 1 and the supporting rod 2 can be selected from the existing materials according to the performance requirements of the materials, the material of the floating body 1 can be foamed aluminum, foamed plastic or a solid buoyancy material, and the solid buoyancy material can be a composite material of hollow glass beads specifically; the material of the support rod can be foam plastic or common plastic. The length and the number of the sections of the supporting rods can be set according to the variation range of the water level of the channel in the past year and the draft range of the passable ship, and the supporting rods are fixed on the bottom surface of the water bottom at the lowest end, such as the supporting rods can be fixed on the water bottom through the anchor stones 4.
The movable joint 3 can adopt any structure capable of realizing multidirectional inclination, wherein one realizable structure can be a structure shown in figure 2, the movable joint 3 comprises a spheroid 3-1 and a coating body 3-2, the coating body 3-2 is hollow, the inner surface of the coating body 3-2 is a spherical gap 3-3 which is matched with the appearance of the spheroid 3-1 and is set at intervals, the spheroid is fixedly connected with the end surface of one section 2-1 of the supporting rod, the coating body 3-2 is connected with the end surface of the other section 2-2 of the supporting rod, and any two adjacent sections of the supporting rods can be connected through the structure shown in figure 2.
The supporting rods in the multistage cascade connection can realize the relative inclination of the adjacent connecting supports, and the supporting rods are prevented from being damaged when being touched by ships. The ship can go back to just under the buoyancy effect of body when the ship process, and the bracing piece gets back to vertical state, guarantees under the natural state this device and can effectively instruct to play the warning effect.
As a further improvement, the floating body 1 comprises a floating body base part 1-2 and a floating body upper section 1-1, the floating body base part 1-2 and the floating body upper section 1-2 of the floating body are made of the same material and can be made of foam materials, and the weight of the floating body upper section 1-1 is smaller than that of the floating body base part 1-2. The upper end of the floating body is lighter in weight and is easier to be positioned at the upper end.
So that the weight of the upper section 1-1 of the floating body is less than the weight of the basic part 1-2 of the floating body. The shape of the floating body base part 1-2 can be any shape and can be columnar, and the floating body upper section 1-1 is a circular truncated cone or a cone with the bottom surface circle being smaller than or equal to the cross section circle of the floating body base part. The same material can be used to reduce the weight by changing the shape and the height of the cone or cone is smaller than the height of the float base 1-2.
Another realization of the weight of the upper section 1-1 of the floating body being smaller than the weight of the basic part 1-2 of the floating body. The floating body is characterized in that the floating body part 1-2 is a solid body, the inner part of the floating body upper section 1-1 is hollow, and the hollow area of the floating body upper section 1-1 is arranged in a sealing mode.
As a further improvement, the outer surface of the floating body 1 can be provided with a reflective sticker. On one hand, the floating body is wrapped by the light reflecting paster, so that the floating body 1 can be effectively protected, and the light reflecting paster can play a warning role at night. The reflective sticker can be stripes alternated with yellow and black.
As a further improvement, the outer surface of the floating body 1 can be provided with a distance marking area for marking the distance from the water surface to the power transmission line. The method is used for marking the distance and prompting the passing height of the passing ship, as shown in fig. 1, 9.0M, 9.5M and 10.5M are marked in corresponding marking areas and respectively represent the height from the current water surface to the transmission line, and personnel sailing the ship judge whether the passing ship can safely pass through the draught of the ship.
As a further improvement, a safety warning board 5 can be further included, and the safety warning board 5 is arranged on the upper end face of the floating body 1. The safety warning board is arranged in the slot by arranging the vertical inserting groove on the upper end face of the floating body. The safety warning board 5 can be provided with warning marks or warning characters.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.

Claims (10)

1. The utility model provides a cross channel transmission line's safety warning device which characterized by: the floating body is arranged on the water surface, and the support rod is fixedly connected with the lower end of the floating body and is vertically arranged at the water bottom; the material density of the floating body is lower than that of water, the outer diameter of the supporting rod is smaller than that of the floating body, the supporting rod is of a multi-section cascade structure, and two adjacent sections of the supporting rods are connected through movable sections.
2. The safety warning device of the cross-channel power transmission line according to claim 1, characterized in that: the movable joint comprises a spherical body and a cladding body, the cladding body is hollow, the inner surface of the cladding body is a gap which is matched with the appearance of the spherical body and is set at intervals, the spherical body is fixedly connected with the end surface of one section of the supporting rod, and the cladding body is connected with the end surface of the other section of the supporting rod.
3. The safety warning device of the cross-channel power transmission line according to claim 1, characterized in that: the floating body comprises a floating body base part and a floating body upper section, the floating body base part and the floating body upper section of the floating body are made of the same material, and the weight of the floating body upper section is smaller than that of the floating body base part.
4. The safety warning device of the cross-channel power transmission line as claimed in claim 3, characterized in that: the shape of the floating body is columnar, the upper section of the floating body is a truncated cone or a cone, the bottom circle of which is smaller than or equal to the size of the section circle of the floating body, and the height of the truncated cone or the cone is smaller than that of the floating body.
5. The safety warning device of the cross-channel power transmission line as claimed in claim 3, characterized in that: the floating body is a solid body, the upper section of the floating body is hollow, and the hollow area is sealed.
6. The safety warning device of the cross-channel power transmission line according to claim 1, characterized in that: the floating body is made of foam plastic, foam aluminum or a composite material of hollow glass beads; or the support rod is made of plastic.
7. The safety warning device of the cross-channel power transmission line according to claim 1, characterized in that: the outer surface of the floating body can be also provided with a reflective sticker.
8. The safety warning device of the cross-channel power transmission line according to claim 1, characterized in that: the outer surface of the floating body can be further provided with a distance marking area for marking the distance from the water surface to the power transmission line.
9. The safety warning device of the cross-channel power transmission line according to claim 1, characterized in that: still include the safety warning sign, the safety warning sign sets up on the up end of body.
10. The safety warning device of the cross-channel power transmission line according to claim 9, characterized in that: the upper end face of the floating body is provided with a vertical slot, and the safety warning board is arranged in the slot.
CN201910894679.6A 2019-09-20 2019-09-20 Safety warning device of cross-channel power transmission line Pending CN110617865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910894679.6A CN110617865A (en) 2019-09-20 2019-09-20 Safety warning device of cross-channel power transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910894679.6A CN110617865A (en) 2019-09-20 2019-09-20 Safety warning device of cross-channel power transmission line

Publications (1)

Publication Number Publication Date
CN110617865A true CN110617865A (en) 2019-12-27

Family

ID=68923808

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910894679.6A Pending CN110617865A (en) 2019-09-20 2019-09-20 Safety warning device of cross-channel power transmission line

Country Status (1)

Country Link
CN (1) CN110617865A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114783210A (en) * 2022-05-06 2022-07-22 广东电网有限责任公司 Safety early warning method and system for cross-channel overhead transmission line

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8019546B1 (en) * 2001-04-05 2011-09-13 Dj Inventions, Llc Tsunami monitoring system
CN102530773A (en) * 2011-10-27 2012-07-04 北京航天计量测试技术研究所 Five-DOF (degree of freedoms) hinge for suspending hoistable platform
CN103062589A (en) * 2011-10-21 2013-04-24 鸿富锦精密工业(深圳)有限公司 Supporting device
CN203176153U (en) * 2013-03-21 2013-09-04 韩加阳 Self-locking universal joint
CN203300176U (en) * 2012-08-29 2013-11-20 上海美驰国际贸易有限公司 Water and land dual-purpose base for advertisement display
CN204706111U (en) * 2015-06-19 2015-10-14 国家电网公司 Across river transmission line wire light-emitting caution ball
CN205318760U (en) * 2016-01-24 2016-06-15 国网安徽省电力公司宣城供电公司 Floated warning sign
CN106143819A (en) * 2016-07-01 2016-11-23 江苏东昇光伏科技有限公司 Buoyancy aid pallet and photovoltaic plant waterborne
CN205845248U (en) * 2016-07-21 2016-12-28 国网湖北省电力公司武汉供电公司 River-crossing power transmission line warning device
CN205847145U (en) * 2016-07-11 2016-12-28 苏仲衡 A kind of water surface floating photovoltaic power generation apparatus
CN206682153U (en) * 2017-03-01 2017-11-28 马建群 Linkage locking ball-joint universal bar
CN207208385U (en) * 2017-09-21 2018-04-10 福建省海洋预报台 A kind of intelligent navigation mark system
CN207866325U (en) * 2018-01-29 2018-09-14 张帅 A kind of hydrographic message collection and treatment device
CN108713099A (en) * 2016-02-24 2018-10-26 Fm能源有限责任两合公司 The wind facilities of flexible spherical pendulum bearing
CN109210073A (en) * 2018-10-15 2019-01-15 杭州电子科技大学 Assembly method when gas magnetic mixing flexural pivot joint and its use
CN208596448U (en) * 2018-08-24 2019-03-12 国网安徽省电力有限公司滁州供电公司 Alarming device
CN109584758A (en) * 2019-01-28 2019-04-05 温州市祥狮图文科技有限公司 A kind of water surface luminous and sounding type identification label

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8019546B1 (en) * 2001-04-05 2011-09-13 Dj Inventions, Llc Tsunami monitoring system
CN103062589A (en) * 2011-10-21 2013-04-24 鸿富锦精密工业(深圳)有限公司 Supporting device
CN102530773A (en) * 2011-10-27 2012-07-04 北京航天计量测试技术研究所 Five-DOF (degree of freedoms) hinge for suspending hoistable platform
CN203300176U (en) * 2012-08-29 2013-11-20 上海美驰国际贸易有限公司 Water and land dual-purpose base for advertisement display
CN203176153U (en) * 2013-03-21 2013-09-04 韩加阳 Self-locking universal joint
CN204706111U (en) * 2015-06-19 2015-10-14 国家电网公司 Across river transmission line wire light-emitting caution ball
CN205318760U (en) * 2016-01-24 2016-06-15 国网安徽省电力公司宣城供电公司 Floated warning sign
CN108713099A (en) * 2016-02-24 2018-10-26 Fm能源有限责任两合公司 The wind facilities of flexible spherical pendulum bearing
CN106143819A (en) * 2016-07-01 2016-11-23 江苏东昇光伏科技有限公司 Buoyancy aid pallet and photovoltaic plant waterborne
CN205847145U (en) * 2016-07-11 2016-12-28 苏仲衡 A kind of water surface floating photovoltaic power generation apparatus
CN205845248U (en) * 2016-07-21 2016-12-28 国网湖北省电力公司武汉供电公司 River-crossing power transmission line warning device
CN206682153U (en) * 2017-03-01 2017-11-28 马建群 Linkage locking ball-joint universal bar
CN207208385U (en) * 2017-09-21 2018-04-10 福建省海洋预报台 A kind of intelligent navigation mark system
CN207866325U (en) * 2018-01-29 2018-09-14 张帅 A kind of hydrographic message collection and treatment device
CN208596448U (en) * 2018-08-24 2019-03-12 国网安徽省电力有限公司滁州供电公司 Alarming device
CN109210073A (en) * 2018-10-15 2019-01-15 杭州电子科技大学 Assembly method when gas magnetic mixing flexural pivot joint and its use
CN109584758A (en) * 2019-01-28 2019-04-05 温州市祥狮图文科技有限公司 A kind of water surface luminous and sounding type identification label

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114783210A (en) * 2022-05-06 2022-07-22 广东电网有限责任公司 Safety early warning method and system for cross-channel overhead transmission line

Similar Documents

Publication Publication Date Title
US11149716B2 (en) Offshore wind-solar-aquaculture integrated floater
WO2014177729A1 (en) Submersible structure for actively supporting towers of generators and sub-stations or similar elements, in maritime facilities
ES2387342A1 (en) Semi-submersible triangular platform for use in the open sea
CN204435158U (en) A kind of safe river surface ice stadium pedestal
WO2015005617A1 (en) Functional blocking device for preventing natural disasters
CN110617865A (en) Safety warning device of cross-channel power transmission line
CN103482035B (en) The huge cement concrete floating structure of the marine antiknock of pin-connected panel
CN111391987A (en) Floating type fan equipment in medium-depth water area
CN204143824U (en) A kind of Novel wind-proof billboard
US20180023264A1 (en) Continental hurricane shield for mitigation of hurricane force on land fall on coastal cities
CN213862580U (en) Water surface warning facility for no-navigation area of hydropower station
CN212533918U (en) Flexible net wave dissipation device
CN202830873U (en) Separated type dock wave eliminating wall
CN105577079A (en) Photovoltaic system floating on water
CN102828490B (en) Separated wharf wave dissipation wall
CN206873289U (en) A kind of bridge guard rail
CN209396002U (en) A kind of tension leg type floatation type fan foundation structure
CN110471130A (en) A kind of monitoring device for marine forecasting
CN205909905U (en) Road surface water level warning equipment
CN206336403U (en) A kind of long-acting lighted buoy in ice formation based on Y type steel skeletons
CN201016160Y (en) Plastic net for preventing sand-snow stacking of high-grade road
CN205584091U (en) Showy formula photovoltaic system's on water photovoltaic module
CN207160072U (en) A kind of protection type submerged tunnel
CN205524858U (en) Showy formula photovoltaic system's on water body
CN203247907U (en) 220kV-electric transmission line single-return tangent tower used in wind area with air speed of 32.5 meters per second and altitude below 5500 meters

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20191227