CN114277619B - Subway rail supports sleeper - Google Patents
Subway rail supports sleeper Download PDFInfo
- Publication number
- CN114277619B CN114277619B CN202111648585.4A CN202111648585A CN114277619B CN 114277619 B CN114277619 B CN 114277619B CN 202111648585 A CN202111648585 A CN 202111648585A CN 114277619 B CN114277619 B CN 114277619B
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- Prior art keywords
- sleeper
- water tank
- water
- heat transfer
- subway
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/30—Wind power
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The invention discloses a subway rail support sleeper, which comprises rails, sleepers, a water tank, heat transfer belts, wind driven generators and a fixer, wherein the sleepers are fixed on the ground through bolts, a plurality of sleepers are distributed on the ground along the same distance, the rails are arranged on the sleepers, the rails are connected with the sleepers through the fixer, the water tank is arranged below the sleepers, the water tank is of a buried design, a water pump is arranged in the water tank, the water pump is conveyed to a waiting room of a subway station through water, the water is filtered and sterilized and then used for washing hands of personnel, the heat transfer belts are arranged at the lower part of the rails, the heat transfer belts enter the water tank, the wind driven generators are arranged on one side above the water tank, the wind driven generators do not influence the operation of a subway, and the wind driven generators are connected with illuminating lamps through storage batteries. The invention has reasonable design; the water in the water tank can recycle the heat generated by rail friction.
Description
Technical Field
The invention relates to a subway rail support sleeper.
Background
Subway is popular as a swift trip mode more and more, and the subway receives external influence less simultaneously, and the subway moves on the track, and the track needs to be fixed on the sleeper, and current track can produce heat because of the friction after the subway is gone, and the heat often loses the waste that causes the resource through external air, sleeper and track adoption bolt fixed connection more, and the track can take place to warp if fixed connection influences deformation and can cause the track damage for a long time under the circumstances of expend with heat and contract with cold.
Disclosure of Invention
The invention aims to provide a subway rail support sleeper so as to solve the technical problems.
The invention adopts the following technical scheme for realizing the purposes:
the utility model provides a subway track supports sleeper, includes track, sleeper, water tank, heat transfer area, aerogenerator, fixer, the sleeper is fixed subaerial through the bolt, and the sleeper distributes along subaerial a plurality ofly, and the sleeper equidistance distributes, installs the track on the sleeper, and the track is connected with the sleeper through the fixer, the sleeper below is equipped with the water tank, and the water tank adopts buried formula, installs the water pump in the water tank, and water is carried to the waiting room of subway station through the water pump, and water supplies personnel to wash the hands after filtering, disinfects, and the lower part of track is equipped with the heat transfer area, and the heat transfer area gets into in the water tank, and aerogenerator is installed to top one side of water tank, and aerogenerator does not influence the operation of subway, and aerogenerator is through battery and light connection.
Preferably, the top of the water tank is provided with a tank cover, the tank cover is arranged above the water tank through screws, tap water is poured into the water tank, water leakage holes are formed in the tank cover, a grid mesh is arranged at the water leakage holes, a plurality of water leakage holes are formed in the water leakage holes, rainwater enters the water tank through the water leakage holes, a foam-rubber cushion is arranged below the water leakage holes, a spring is arranged at the lower part of the foam-rubber cushion, a guide rod is arranged at one side of the foam-rubber cushion, and the guide rod is connected with the bottom of the water tank.
Preferably, the sponge cushion seals the water leakage hole under the action of a spring, the spring is made of PVC material, an integrally formed mounting seat is arranged on the box cover, and the wind driven generator is connected with the mounting seat.
Preferably, one end of the heat transfer belt is connected with the bottom of the rail, the other end of the heat transfer belt enters the inner bottom of the water tank, a corrugated belt is arranged on the heat transfer belt, and the heat transfer belt is made of copper materials.
Preferably, the mount pad is round platform formula design, has seted up the spliced eye on the mount pad, and the spliced eye is equipped with two, and spliced eye one side is equipped with the lead screw, lead screw and sleeve threaded connection, sleeve and mount pad are connected.
Preferably, the wind driven generator comprises a magnetic induction wire cylinder, a rotary blade and a plug post, wherein the bottom of the magnetic induction wire cylinder is provided with the plug post which is integrally formed, the plug post is connected with the plug hole and is fixed by a screw rod, the rotary blade is connected with a bearing above the magnetic induction wire cylinder, a coil is arranged at the lower part of the rotary blade, and the coil enters the magnetic induction wire cylinder.
Preferably, the fixer comprises a guide plate, a sliding block, a sealing cylinder, a driving rack, a gear, a bidirectional rack, a rotating cylinder, a compression bar and an L-shaped frame, wherein the guide plate is fixed on a sleeper, sliding grooves are formed in two sides of the guide plate, the sliding block is connected with the sliding grooves, the sliding block is connected with a piston rod, the piston rod is arranged in the sealing cylinder, the sealing cylinder is connected with a limiting block, the right side of the sliding block is provided with the driving rack which is arranged on a screw, the driving rack is meshed with the gear, the gear is arranged on the sleeper through a rotating shaft and meshed with the bidirectional rack, the bidirectional rack is meshed with the guide plate in a sliding manner, the lower part of the rotating cylinder is provided with the compression bar in threaded connection, the compression bar penetrates through the L-shaped frame and is connected with a track, and the L-shaped frame is arranged on the sleeper through the screw.
Preferably, the sealing cylinder is filled with nitrogen.
Compared with the prior art, the invention has the following advantages: the invention has reasonable design; the wind power generator can generate power by utilizing wind power after subway passing, and can save resources by utilizing the generated power for illumination; the water energy heat transfer belt in the water tank can recycle heat generated by rail friction, the water energy of the recycled heat can be utilized, meanwhile, the water leakage holes can collect and utilize rainwater, when no rainwater exists, the spring pushes the sponge cushion upwards to seal the water leakage holes, sundries are prevented from entering the water tank, when the rainwater exists, the sponge cushion absorbs water and the gravity increases to compress the spring, and the sponge cushion is separated from the water leakage holes, so that the rainwater enters the water tank; nitrogen in the sealed section of thick bamboo in the fixer is heated and expands to make the piston rod outwards remove, the slider moves backward under the effect of piston rod, initiative rack on the slider moves along with the slider, initiative rack removes and makes the gear take place to rotate, thereby the gear rotation drives two-way rack and removes, two-way rack drives and rotates a section of thick bamboo rotation, thereby the depression bar upwards moves certain distance under the effect of rotating a section of thick bamboo and easily track thermal expansion, after the temperature reduces, nitrogen shrink piston rod moves in to the sealed section of thick bamboo, the slider moves along with the piston rod, initiative rack removes and then has realized two-way rack and removes, it is rotatory under the effect of two-way rack to rotate a section of thick bamboo, the depression bar moves down and the track contact is fastened it, the clearance grow has been avoided behind the track shrinkage to appear fastening untimely condition.
Drawings
Fig. 1 is a schematic view of a subway rail support sleeper of the present invention.
Fig. 2 is an exploded schematic view of a water tank of the subway rail support sleeper of the present invention.
Fig. 3 is a schematic view of the mounting base of the subway rail support sleeper of the present invention.
Fig. 4 is a schematic view of a wind driven generator of the subway rail support sleeper of the present invention.
Fig. 5 is a schematic view of a holder for a railway rail support tie of the present invention.
Description of the embodiments
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1-5, a subway rail support sleeper comprises a rail 1, a sleeper 2, a water tank 3, a heat transfer belt 4, wind driven generators 5 and a fixer 6, wherein the sleeper 2 is fixed on the ground through bolts, the sleeper 2 is distributed in a plurality along the ground, the sleepers 2 are equidistantly distributed, the rail 1 is installed on the sleeper 2, the rail 1 is connected with the sleeper 2 through the fixer 6, the water tank 3 is arranged below the sleeper 2, the water tank 3 is in a buried design, a water pump is installed in the water tank 3, water is conveyed to a waiting room of a subway station through the water pump, water after heat exchange is conveyed to a power station through a pipeline for power generation, the water is filtered and sterilized for personnel to wash hands, the lower part of the rail 1 is provided with the heat transfer belt 4, the heat transfer belt 4 enters the water tank 3, the wind driven generators 5 are installed on one side above the water tank 3, and the wind driven generators 5 do not influence the operation of a subway, the wind driven generator 5 is connected with the lighting lamp through a storage battery, the top of the water tank 3 is provided with a tank cover 7, the tank cover 7 is arranged above the water tank 3 through screws, tap water is poured into the water tank 3, the tank cover 7 is provided with water leakage holes 8, grid meshes are arranged at the positions of the water leakage holes 8, a plurality of water leakage holes 8 are arranged, rainwater enters the water tank 3 through the water leakage holes 8, a foam-rubber cushion 10 is arranged below the water leakage holes 8, the lower part of the foam-rubber cushion 10 is provided with a spring 11, one side of the foam-rubber cushion 10 is provided with a guide rod 12, the guide rod 12 is connected with the bottom of the water tank 3, the foam-rubber cushion 10 seals the water leakage holes 8 under the action of the spring 11, the spring 11 is made of PVC material, the tank cover 7 is provided with an integrally formed mounting seat 9, the wind driven generator 5 is connected with the mounting seat 9, one end of a heat transfer belt 4 is connected with the bottom of a track 1, and the other end of the heat transfer belt 4 enters the inner bottom of the water tank 3, the heat transfer belt 4 is provided with the corrugated belt 13, the heat transfer belt 4 is made of copper materials, the installation seat 9 is of a round table type design, the installation seat 9 is provided with plug holes 14, two plug holes 14 are arranged, one side of each plug hole 14 is provided with a screw rod 15, the screw rod 15 is in threaded connection with a sleeve, the sleeve is connected with the installation seat 9, the wind driven generator 5 comprises a magnetic induction wire cylinder 16, rotating blades 17 and plug posts 18, the bottoms of the magnetic induction wire cylinders 16 are provided with integrally formed plug posts 18, the plug posts 18 are connected with the plug holes 14 and fixed by the screw rods 15, the rotating blades 17 are arranged above the magnetic induction wire cylinder 16, the lower part of the rotating blades 17 is provided with coils, the coils enter the magnetic induction wire cylinder 16, the fixer 6 comprises a guide plate 29, a sliding block 19, a sealing cylinder 20, a driving rack 22, a gear 23, a bidirectional rack 24, a rotating cylinder 25, a pressing rod 26 and an L-shaped frame 27, the guide plate 29 is fixed on the sleeper 2, sliding grooves 28 are formed on two sides of the guide plate 29, the sliding block 19 is connected with the sliding grooves 28, the sliding block 19 is arranged in the sealing cylinder 20, the sliding block 20 is connected with the sliding block 21, the right side of the sliding block 21 is connected with the sliding block 22 is provided with the driving rack 24, the sliding rod 24 is meshed with the driving rack 24, and the bidirectional rack 24 is meshed with the driving rack 24, and is meshed with the bidirectional rack 24, and the bidirectional rack 24 is meshed with the bidirectional rack 24, and the bidirectional rack is meshed with the bidirectional rack 2, and the bidirectional rack is meshed with the driving rack 24.
The working principle of the invention is as follows: when a subway passes through quickly, a large wind-driven generator 5 can generate electricity by utilizing wind power after the subway passes through, the electricity is utilized for illumination, thereby resources are saved, the water energy heat transfer belt 4 in the water tank 3 recovers heat generated by friction of the track 1, the recovered heat water energy can be utilized, meanwhile, the water leakage hole 8 can collect and utilize rainwater, when no rainwater exists, the spring 11 pushes the foam-rubber cushion 10 upwards so as to seal the water leakage hole 8, sundries are prevented from entering the water tank 3, when the rainwater exists, the foam-rubber cushion 10 absorbs water and increases in gravity to compress the spring 11, the foam-rubber cushion 10 moves downwards on the guide rod 12 and separates from the water leakage hole 8 so as to enable the rainwater to enter the water tank 3, nitrogen in the sealing cylinder 20 in the fixer 6 is heated and expanded, so that a piston rod moves outwards, the sliding block 19 moves backwards under the action of the piston rod, the driving rack 22 on the sliding block 19 moves along with the sliding block 19, the driving rack 22 moves to enable the gear 23 to rotate, the bidirectional rack 23 rotates so as to drive the bidirectional rack 24 to move, the bidirectional rack 24 rotates, the compression bar 26 moves upwards under the action of the rotating cylinder 25, the action of the rotating cylinder 25 is prevented from moving upwards by a certain distance, the track 1, the temperature of the sealing rack 24 is easily reduced, the bidirectional rack 24 is prevented from moving along with the sliding down along with the sliding rod, the sliding rod is fastened, and the sliding rod is prevented from moving along with the bidirectional rack 24, and the sliding along with the sliding rod.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art from this disclosure that changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the invention.
Claims (7)
1. The utility model provides a subway track supports sleeper, includes track (1), sleeper (2), water tank (3), heat transfer area (4), aerogenerator (5), fixer (6), its characterized in that, sleeper (2) are fixed subaerial through the bolt, and sleeper (2) are distributed along subaerial a plurality of, and sleeper (2) equidistance distributes, installs track (1) on sleeper (2), and track (1) are connected with sleeper (2) through fixer (6), sleeper (2) below is equipped with water tank (3), and water tank (3) adopt buried design, install the water pump in water tank (3), and water is carried to the waiting room of subway station through the water pump, and water supplies personnel to wash the hands after filtering, disinfecting, and the lower part of track (1) is equipped with heat transfer area (4), and heat transfer area (4) get into in water tank (3), and aerogenerator (5) are installed to one side above water tank (3), and aerogenerator (5) do not influence the operation of subway, aerogenerator (5) are connected with the light through the battery.
The fixer (6) comprises a guide plate (29), a sliding block (19), a sealing cylinder (20), a driving rack (22), a gear (23), a bidirectional rack (24), a rotating cylinder (25), a pressing rod (26) and an L-shaped frame (27), wherein the guide plate (29) is fixed on a sleeper (2), sliding grooves (28) are formed in two sides of the guide plate (29), the sliding block (19) is connected with the sliding grooves (28), the sliding block (19) is connected with a piston rod, the piston rod is installed in the sealing cylinder (20), the sealing cylinder (20) is connected with a limiting block (21), the driving rack (22) installed on the right side of the sliding block (19) is provided with a screw, the driving rack (22) is meshed with the gear (23), the gear (23) is installed on the sleeper (2) through a rotating shaft, the gear (23) is meshed with the bidirectional rack (24), the bidirectional rack (24) is connected with the guide plate (29) in a sliding mode, the lower portion of the rotating cylinder (25) is provided with the pressing rod (26) in threaded connection, and the pressing rod (26) penetrates through the L-shaped frame (27) to be connected with the L-shaped frame (27) on the sleeper (2).
2. The subway rail support sleeper according to claim 1, characterized in that the top of the water tank (3) is provided with a tank cover (7), the tank cover (7) is installed above the water tank (3) through screws, tap water is poured into the water tank (3), the tank cover (7) is provided with water leakage holes (8), grids are installed at the water leakage holes (8), the water leakage holes (8) are provided with a plurality of water leakage holes, rainwater enters the water tank (3) through the water leakage holes (8), a foam-rubber cushion (10) is arranged below the water leakage holes (8), springs (11) are installed at the lower parts of the foam-rubber cushion (10), a guide rod (12) is installed at one side of the foam-rubber cushion (10), and the guide rod (12) is connected with the bottom of the water tank (3).
3. The subway rail support sleeper according to claim 2, wherein the foam-rubber cushion (10) seals the water leakage hole (8) under the action of the spring (11), the spring (11) is made of PVC material, the box cover (7) is provided with an integrally formed mounting seat (9), and the wind driven generator (5) is connected with the mounting seat (9).
4. The subway rail support sleeper according to claim 1, wherein one end of the heat transfer belt (4) is connected with the bottom of the rail (1), the other end of the heat transfer belt (4) enters the inner bottom of the water tank (3), the heat transfer belt (4) is provided with a corrugated belt (13), and the heat transfer belt (4) is made of copper materials.
5. A subway rail support sleeper according to claim 3, characterized in that the mounting base (9) is of a truncated cone design, the mounting base (9) is provided with two plug holes (14), one side of each plug hole (14) is provided with a screw rod (15), the screw rods (15) are in threaded connection with the sleeve, and the sleeve is connected with the mounting base (9).
6. The subway rail support sleeper according to claim 1 or 5, wherein the wind driven generator (5) comprises a magnetic induction cylinder (16), a rotating blade (17) and a plug post (18), the bottom of the magnetic induction cylinder (16) is provided with the integrally formed plug post (18), the plug post (18) is connected with the plug hole (14) and fixed by a screw rod (15), the rotating blade (17) is connected above the magnetic induction cylinder (16), the lower part of the rotating blade (17) is provided with a coil, and the coil enters the magnetic induction cylinder (16).
7. A subway rail support sleeper according to claim 1, characterized in that the sealing cylinder (20) is filled with nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111648585.4A CN114277619B (en) | 2021-12-31 | 2021-12-31 | Subway rail supports sleeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111648585.4A CN114277619B (en) | 2021-12-31 | 2021-12-31 | Subway rail supports sleeper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114277619A CN114277619A (en) | 2022-04-05 |
| CN114277619B true CN114277619B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111648585.4A Active CN114277619B (en) | 2021-12-31 | 2021-12-31 | Subway rail supports sleeper |
Country Status (1)
| Country | Link |
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| CN (1) | CN114277619B (en) |
Citations (10)
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| DE19622119A1 (en) * | 1996-06-01 | 1997-12-04 | Rolf Hoericht | Wind power electricity generation 250 kW power plant e.g. for installing over roads or railways |
| JP2000001802A (en) * | 1998-06-15 | 2000-01-07 | Uemura Makoto | Execution method under track in hot season |
| DE102005003962A1 (en) * | 2005-01-27 | 2006-08-03 | Schreck-Mieves Gmbh | Rail system for an urban tramway etc., sunk into the ground, has an attachment box with a variety of functions buried to one side of the rail and decoupled from it as isolation from traffic vibrations |
| EP1995380A2 (en) * | 2007-05-25 | 2008-11-26 | Osvaldo Fasano | Device for collecting liquids along railway tracks |
| AT11028U1 (en) * | 2008-09-24 | 2010-03-15 | Thera S Di Kraus & Di Fh Maier | SOUND ABSORPTION ARRANGEMENT FOR SLABS |
| JP2011094415A (en) * | 2009-09-30 | 2011-05-12 | Sekisui Chem Co Ltd | Sleeper |
| CN202809406U (en) * | 2012-09-10 | 2013-03-20 | 武汉钢铁(集团)公司 | Steel rail fixing device |
| GB201413920D0 (en) * | 2014-08-06 | 2014-09-17 | Tan Xincai | Railway mahjong-tank track system |
| CN111235975A (en) * | 2020-01-14 | 2020-06-05 | 岑雨霏 | Automatic regulating device for thermal expansion and cold contraction of railway fastener |
| CN212175350U (en) * | 2020-03-11 | 2020-12-18 | 杨国童 | Track fixing device |
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| JP4742086B2 (en) * | 2007-09-28 | 2011-08-10 | 日本車輌製造株式会社 | Watertight structure of track rail |
| CN105803862A (en) * | 2014-12-31 | 2016-07-27 | 柳州市京阳节能科技研发有限公司 | High-quality energy-saving and environment-friendly high-speed track |
| KR101857066B1 (en) * | 2017-10-11 | 2018-05-11 | 삼표레일웨이 주식회사 | Precast Concrete Slab Track and Constructing Method thereof |
| CN209258987U (en) * | 2018-12-06 | 2019-08-16 | 长沙湘匠智能科技有限公司 | A kind of bidirectional driving apparatus |
| CN211112934U (en) * | 2019-09-04 | 2020-07-28 | 大秦铁路股份有限公司 | Antifouling mass flow processing apparatus of circuit |
| CN212742029U (en) * | 2020-05-25 | 2021-03-19 | 中铁隧道集团三处有限公司 | Mounting seat for subway rail |
| CN214301050U (en) * | 2021-01-22 | 2021-09-28 | 梁光浩 | Road and bridge roadbed protective structure |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19622119A1 (en) * | 1996-06-01 | 1997-12-04 | Rolf Hoericht | Wind power electricity generation 250 kW power plant e.g. for installing over roads or railways |
| JP2000001802A (en) * | 1998-06-15 | 2000-01-07 | Uemura Makoto | Execution method under track in hot season |
| DE102005003962A1 (en) * | 2005-01-27 | 2006-08-03 | Schreck-Mieves Gmbh | Rail system for an urban tramway etc., sunk into the ground, has an attachment box with a variety of functions buried to one side of the rail and decoupled from it as isolation from traffic vibrations |
| EP1995380A2 (en) * | 2007-05-25 | 2008-11-26 | Osvaldo Fasano | Device for collecting liquids along railway tracks |
| AT11028U1 (en) * | 2008-09-24 | 2010-03-15 | Thera S Di Kraus & Di Fh Maier | SOUND ABSORPTION ARRANGEMENT FOR SLABS |
| JP2011094415A (en) * | 2009-09-30 | 2011-05-12 | Sekisui Chem Co Ltd | Sleeper |
| CN202809406U (en) * | 2012-09-10 | 2013-03-20 | 武汉钢铁(集团)公司 | Steel rail fixing device |
| GB201413920D0 (en) * | 2014-08-06 | 2014-09-17 | Tan Xincai | Railway mahjong-tank track system |
| CN111235975A (en) * | 2020-01-14 | 2020-06-05 | 岑雨霏 | Automatic regulating device for thermal expansion and cold contraction of railway fastener |
| CN212175350U (en) * | 2020-03-11 | 2020-12-18 | 杨国童 | Track fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114277619A (en) | 2022-04-05 |
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Effective date of registration: 20230530 Address after: East of Xindian Village, Jiancao District, Taiyuan City, Shanxi Province 030000 Applicant after: TAIYUAN JINGFENG RAILWAY EQUIPMENT MANUFCTURING Co.,Ltd. Address before: 410200 zone 307-1, third floor, building 10, Jinqiao international future city, No. 1555, first section of Purui Avenue, Wangcheng economic and Technological Development Zone, Changsha, Hunan Applicant before: Changsha Xiangjian Intelligent Technology Co.,Ltd. |
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