CN109823368B - Integrated transmission locking mechanism for switch machine - Google Patents
Integrated transmission locking mechanism for switch machine Download PDFInfo
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- CN109823368B CN109823368B CN201910134478.6A CN201910134478A CN109823368B CN 109823368 B CN109823368 B CN 109823368B CN 201910134478 A CN201910134478 A CN 201910134478A CN 109823368 B CN109823368 B CN 109823368B
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- locking
- extrudable
- connecting body
- gear
- iron
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 91
- 229910052742 iron Inorganic materials 0.000 claims abstract description 40
- 230000009471 action Effects 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000003068 static effect Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000003831 antifriction material Substances 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 1
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
- Railway Tracks (AREA)
Abstract
The invention relates to an integrated transmission locking mechanism for a switch machine, which is characterized by comprising a gear, an action rod, an extrudable connecting body, a non-extrudable connecting body, locking iron, an extrusion seat, an extrusion pin, a disc spring, a left locking shaft, a right moving slide block, a left moving slide block, a compression spring, a left locking hook and a right locking hook; the gear is arranged in the extrudable connecting body, a starting plate is arranged above the connecting body, and the locking iron is meshed with the gear in the extrudable connecting body or the non-extrudable connecting body and moves left and right in the extrudable connecting body or the non-extrudable connecting body; the two ends of the locking iron are provided with inclined planes for pushing the left locking shaft and the right locking shaft, so as to push the extrudable connecting body or the non-extrudable connecting body and the action rod to move, thereby realizing the conversion stroke of the switch machine. The integrated transmission locking mechanism for the switch machine has the advantages of high transmission efficiency, small loss, long service life of parts, safety and reliability.
Description
Technical Field
The invention belongs to the technical field of railway point machines, and particularly relates to an integrated transmission locking mechanism for a point machine.
Background
The switch machine is used as the main component of railway switch switching equipment, and has the main functions of switching and locking switch rails or point rails on stock rails or wing rails, and simultaneously can correctly represent the positions of the switch rails or point rails so as to ensure the safety of trains passing over the switch. The switch rail and the core rail of the turnout are pulled by multiple points, for safety, a double-locking switch machine is used for a first pulling point, and single-locking extrusion switch machines can be used for other pulling points. The connectors adopted in the patent are extrusion type connectors and non-extrusion type connectors respectively.
The prior switch machine transmission locking mechanism adopts a dovetail locking block mechanism and also adopts a tooth difference speed reducer and a gear locking circular arc mechanism, and the two mechanisms have the common points of discreteness distribution among transmission locking pieces, high processing precision and mounting position precision requirements of multi-phase parts, low transmission efficiency, large loss, sliding friction among locking surfaces, easy abrasion of the locking surfaces and hidden danger on the safe operation of the whole machine.
Disclosure of Invention
The invention aims to solve the problems and provide the integrated transmission locking mechanism for the switch machine, which has the advantages of high transmission efficiency, small loss, long service life of parts and safety and reliability.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the integrated transmission locking mechanism for the switch machine is characterized by comprising a gear, an action rod, an extrudable connecting body, a non-extrudable connecting body, locking iron, an extrusion seat, an extrusion pin, a disc spring, a left locking shaft, a right moving slide block, a left moving slide block, a compression spring, a left locking hook and a right locking hook;
the gear is arranged in the extrudable connecting body, a starting plate is arranged above the extrudable connecting body, and the locking iron is meshed with the gear in the extrudable connecting body or the non-extrudable connecting body and moves left and right in the extrudable connecting body or the non-extrudable connecting body; the two ends of the locking iron are provided with inclined planes for pushing the left locking shaft and the right locking shaft so as to push the extrudable connecting body or the non-extrudable connecting body and the action rod to move, thereby realizing the conversion stroke of the switch machine; gaskets for reducing friction are arranged below and on the side face of the locking iron sliding surface;
the action rod is connected with the extrudable connecting body or the non-extrudable connecting body through a connecting pin; the extrusion type connecting body and the non-extrusion type connecting body are internally provided with compression springs, and the right moving sliding block and the left moving sliding block are connected through the compression springs and slide left and right in the extrusion type connecting body or the non-extrusion type connecting body; the left locking shaft and the right locking shaft are arranged in a U-shaped opening of the extrudable connecting body or the non-extrudable connecting body and move up and down;
the left locking shaft and the right locking shaft roll by taking the locking sleeve as the shaft, locking wheels are arranged at two ends of the outer part of the locking sleeve, the locking sleeve is pressed into the locking wheels, and the locking wheels roll in the extrudable connecting body or the non-extrudable connecting body; the right locking shaft and the left locking shaft respectively move in the right locking hook and the left locking hook; the right locking hook and the left locking hook are respectively provided with a groove, and one surface of the groove, which is close to the right moving slide block or the left moving slide block, is an inclined surface.
Further, the shims are made of 9442 aluminum bronze or other antifriction material.
Further, the left locking hook and the right locking hook are fixed on the bottom shell of the switch machine.
Preferably, the number of the gears and the compression springs is two.
The invention has the beneficial effects that:
the integrated transmission locking device integrates the transmission and locking parts, is uniformly distributed in the connecting body, has compact structure, centralized distribution of acting force generated during transmission and locking, and high transmission efficiency and small loss due to the fact that the locking parts roll mutually, and improves the service life of parts and the safety and reliability of the whole machine.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only for the purpose of more clearly illustrating the embodiments of the present invention or the technical solutions in the prior art, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIGS. 1-2 are schematic structural views of the present invention;
FIG. 3 is a right side locking schematic view of the integrated transmission locking mechanism of the present invention;
FIG. 4 is a left side locking schematic view of the integrated transmission locking mechanism of the present invention;
FIG. 5 is a schematic diagram of motion conversion according to the present invention;
FIG. 6 is a schematic view of the connection of the non-extrudable joint of the present invention to the actuating lever;
fig. 7 is a schematic view of the structure of the locking rolling member of the present invention.
Detailed Description
The integrated transmission locking mechanism for the switch machine is characterized by comprising a gear 1, an action rod 2, a squeezable connecting body 3, a non-squeezable connecting body 18, a locking iron 4, a jolt 23, a jolt pin 24, a disc spring, a left locking shaft 7, a right locking shaft 5, a right moving slide block 9, a left moving slide block 10, a compression spring 11, a left locking hook 8 and a right locking hook 6, wherein the integrated transmission locking mechanism for the switch machine is shown in fig. 1-2; the left locking hook 8 and the right locking hook 6 are fixed on the bottom shell of the switch machine.
The gear 1 is arranged in the extrudable joint body 3, an actuating plate 12 is arranged above the extrudable joint body 3, and the locking iron 4 is meshed with the gear 1 in the extrudable joint body 3 or the non-extrudable joint body 18 and moves left and right in the extrudable joint body 3 or the non-extrudable joint body 18; the two ends of the locking iron 4 are provided with inclined planes for pushing the left locking shaft 7 and the right locking shaft 5 so as to push the extrudable connecting body 3 or the non-extrudable connecting body 18 and the action rod 2 to move, thereby realizing the conversion stroke of the switch machine; a gasket 20 for reducing friction is arranged below and on the side surface of the sliding surface of the locking iron 4; the shim 20 is made of 9442 aluminum bronze or other friction reducing material.
The action bar 2 is connected with the extrudable connecting body 3 or the non-extrudable connecting body 18 through a connecting pin 19; the extrusion type connecting body 3 and the extrusion type connecting body 18 are internally provided with compression springs 11, the right movable sliding block 9 and the left movable sliding block 10 are connected through the compression springs 11 and slide left and right in the extrusion type connecting body 3 or the extrusion type connecting body 18; the left locking shaft 7 and the right locking shaft 5 are arranged in the U-shaped opening of the extrudable connecting body 3 or the non-extrudable connecting body 18 and move up and down;
the left locking shaft 7 and the right locking shaft 5 roll by taking a locking sleeve 22 as an axis, locking wheels 21 are arranged at two ends outside the locking sleeve 22, the locking sleeve 22 is pressed into the locking wheels 21, and the locking wheels 21 roll in the extrudable connecting body 3 or the non-extrudable connecting body 18; the right locking shaft 5 and the left locking shaft 7 respectively move in the right locking hook 6 and the left locking hook 8; the right locking hook 6 and the left locking hook 8 are respectively provided with a groove, and one surface of the groove, which is close to the right moving slide block 9 or the left moving slide block 10, is an inclined surface.
The front end driving part of the integrated transmission locking mechanism of the invention acts as a motor, which rotates and is transmitted to a friction clutch through gear reduction, the friction clutch is in spline connection with a ball screw, a push plate sleeve is arranged on a ball screw nut and can axially reciprocate along with the screw nut, a rack is processed on the push plate sleeve, the push plate sleeve is meshed with a gear 1 fixed on an extrudable connecting body 3, the other side of the gear 1 fixed on the extrudable connecting body 3 is meshed with a locking iron 4 rack, and the extrudable connecting body 3 is connected with an action rod 2 through a disc spring extrusion mechanism.
The right locking position is shown in fig. 3, and the right locking shaft 5 is pressed into the groove of the right locking hook 6 by the locking iron 4 through the engagement action of the push plate sleeve, the gear 1 and the locking iron 4, and the right locking hook 6 is fixed on the bottom shell of the switch machine, so that the actuating rod 2 of the switch machine is locked at the right side position of the switch machine, namely, the switch rail or the point rail of the switch is locked at the right side position by the actuating rod 2.
The left locking position is shown in fig. 4, the extrudable coupling body 3 is continuously moved leftwards through the static transmission of the force between the push plate sleeve and the gear 1, the gear 1 and the locking iron 4, when the left locking hook 8 enters the left hole of the extrudable coupling body 3, the left moving slide block 10 is pushed rightwards to squeeze the compression spring 11, the left inclined surface of the locking iron 4 pushes the left locking shaft 7 into the groove of the left locking hook 8, the switch actuating rod 2 is locked on the bottom shell and is switched to be in place, and the extrudable coupling body 3 stops moving. At the moment, the push plate sleeve and the gear 1 are engaged with each other, and the gear 1 and the locking iron 4 are engaged with each other, so that the locking iron 4 continues to move leftwards to enter a locking stroke until the power is off to complete locking, and three action requirements of unlocking, switching and locking required by the point switch are met.
When the switch machine is switched from the right side to the left side, as shown in fig. 5, the locking iron 4 is moved leftwards through the meshing motion of the push plate sleeve and the gear 1 and the locking iron 4, and at the moment, the extrudable joint body 3 is not moved, so that the unlocking action of the switch machine is performed; the locking iron 4 moves to the middle of the right locking shaft 5 and the left locking shaft 7, the right locking shaft 5 moves upwards in the extrudable coupling body 3 along the groove inclined surface of the right locking hook 6 to be unlocked, the right locking hook 6 withdraws from the hole of the extrudable coupling body 3, the right movable sliding block 9 moves rightwards under the action of the elasticity of the compression spring 11 to the lower part of the right locking shaft 5, after the left inclined surface of the locking iron 4 contacts with the left locking shaft 7, the left movable sliding block 10 is arranged below the left locking shaft 7, so that the left locking shaft 7 and the extrudable coupling body 3 can not move downwards in the extrudable coupling body 3, the left locking shaft 4 is pushed by the locking iron 4 to move leftwards simultaneously, at the moment, the switch machine action rod 2 shifts a turnout leftwards, and the engagement of each tooth between the push plate sleeve and the gear 1 and the locking iron 4 is in a static state in the shifting process, and only plays the role of transmitting shifting actions.
In the case of the double locking switch machine for the first traction point of the multi-point traction switch, as shown in fig. 6, the coupling body is a non-extrudable coupling body 18, and the actuating rod 2 and the non-extrudable coupling body 18 are coupled together by 2 coupling pins 19, and the integrated transmission locking mechanism is the same as extrusion.
As shown in fig. 7, the right locking shaft 5 and the left locking shaft 7 roll in the locking sleeve 22 at both ends, the locking sleeve 22 is pressed into the locking wheel 21, and the locking wheel 21 can roll in the extrudable coupling body 3 or the non-extrudable coupling body 18.
The integrated transmission locking mechanism of the invention meets the requirement of the 1 st part of the GB/T25338.1-2010 railway switch machine: and 5.2 switch machine action programs in general technical conditions.
The invention is not described in detail in the prior art.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The integrated transmission locking mechanism for the switch machine is characterized by comprising a gear (1), an action rod (2), an extrudable connecting body (3), a non-extrudable connecting body (18), a locking iron (4), an extrusion seat (23), an extrusion pin (24), a disc spring, a left locking shaft (7), a right locking shaft (5), a right moving slide block (9), a left moving slide block (10), a compression spring (11), a left locking hook (8) and a right locking hook (6);
the gear (1) is arranged in the extrudable connecting body (3), a starting plate (12) is arranged above the extrudable connecting body (3), and the locking iron (4) is meshed with the gear (1) in the extrudable connecting body (3) or the non-extrudable connecting body (18) and moves left and right in the extrudable connecting body (3) or the non-extrudable connecting body (18); inclined planes are arranged at two ends of the locking iron (4) and used for pushing the left locking shaft (7) and the right locking shaft (5) so as to push the extrudable connecting body (3) or the non-extrudable connecting body (18) and the action rod (2) to move, thereby realizing the conversion stroke of the switch machine; a gasket (20) for reducing friction is arranged below and on the side surface of the sliding surface of the locking iron (4);
the action rod (2) is connected with the extrudable connecting body (3) or the non-extrudable connecting body (18) through a connecting pin (19); the extrusion type connecting body (3) and the non-extrusion type connecting body (18) are internally provided with compression springs (11), and the right movable sliding block (9) and the left movable sliding block (10) are connected through the compression springs (11) and slide left and right in the extrusion type connecting body (3) or the non-extrusion type connecting body (18); the left locking shaft (7) and the right locking shaft (5) are arranged in a U-shaped opening of the extrudable connecting body (3) or the non-extrudable connecting body (18) and move up and down;
the left locking shaft (7) and the right locking shaft (5) roll by taking a locking sleeve (22) as a shaft, locking wheels (21) are arranged at two ends outside the locking sleeve (22), the locking sleeve (22) is pressed into the locking wheels (21), and the locking wheels (21) roll in the extrudable connecting body (3) or the non-extrudable connecting body (18); the right locking shaft (5) and the left locking shaft (7) respectively move in the right locking hook (6) and the left locking hook (8); grooves are formed in the right locking hook (6) and the left locking hook (8), and one surface, close to the right moving sliding block (9) or the left moving sliding block (10), of the groove is an inclined surface;
the front end driving part of the integrated transmission locking mechanism acts as a motor, rotates and is transmitted to a friction clutch through gear reduction, the friction clutch is in spline connection with a ball screw, a push plate sleeve is arranged on the ball screw and can axially reciprocate along with the ball screw, a rack is machined on the push plate sleeve, the push plate sleeve is meshed with a gear (1) fixed on an extrudable connecting body (3), the other side of the other gear (1) fixed on the extrudable connecting body (3) is meshed with a locking iron (4) rack, and the extrudable connecting body (3) is connected with an action rod (2) through a disc spring extrusion mechanism;
the right side locking of the integrated transmission locking mechanism is realized through the meshing action of the push plate sleeve, the gear (1) and the locking iron (4), the locking iron (4) presses the right locking shaft (5) into the groove of the right locking hook (6), and the right locking hook (6) is fixed on the bottom shell of the switch machine, so that the action rod (2) of the switch machine is locked at the right side position of the switch machine, namely the action rod (2) locks the switch rail or the point rail of the turnout at the right side position;
the left side locking of the integrated transmission locking mechanism is realized by static transmission of force between the push plate sleeve and the gear (1) and between the gear (1) and the locking iron (4), so that the extrudable coupling body (3) continuously moves leftwards, when the left locking hook (8) enters the left side hole of the extrudable coupling body (3), the left moving sliding block (10) is pushed rightwards to extrude the compression spring (11), the left inclined surface of the locking iron (4) pushes the left locking shaft (7) into the groove of the left locking hook (8), the locking of the action rod (2) of the switch is switched into place on the bottom shell, and the extrudable coupling body (3) stops moving, at the moment, the push plate sleeve and the gear (1) are meshed with each other by the gear, so that the locking iron (4) continuously moves leftwards to enter the locking stroke until the power is cut off, and three action requirements of unlocking, switching and locking required by the switch are met;
when the switch machine is switched from the right side to the left side, the locking iron (4) is moved leftwards through the meshing of the push plate sleeve and the gear (1) and the meshing motion of the gear (1) and the locking iron (4), and at the moment, the extrudable connecting body (3) is not moved to unlock the switch machine; the locking iron (4) moves to the middle of the right locking shaft (5) and the left locking shaft (7), the right locking shaft (5) moves upwards in the extrudable connecting body (3) along the groove inclined surface of the right locking hook (6) to be unlocked, the right locking hook (6) withdraws from the hole of the extrudable connecting body (3), the right movable sliding block (9) moves rightwards under the action of the elasticity of the compression spring (11) to the lower part of the right locking shaft (5), after the left inclined surface of the locking iron (4) is contacted with the left locking shaft (7), the left movable sliding block (10) is arranged below the left locking shaft (7) to enable the locking iron (4) to move downwards in the extrudable connecting body (3), so that the left locking shaft (7) and the extrudable connecting body (3) are pushed to move leftwards simultaneously, and at the moment, the switch machine action rod (2) shifts a turnout leftwards, and the engagement between the push plate sleeve and each tooth of the gear (1) and the locking iron (4) is only in a static transmission action.
2. An integrated transmission locking mechanism for a switch machine according to claim 1, characterized in that said spacer (20) is made of 9442 aluminium bronze or other antifriction material.
3. An integrated transmission locking mechanism for a switch machine according to claim 1, characterized in that the left locking hook (8) and the right locking hook (6) are fixed to the bottom shell of the switch machine.
4. An integrated transmission locking mechanism for a point machine according to any one of claims 1 to 3, characterized in that the number of gears (1) and compression springs (11) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910134478.6A CN109823368B (en) | 2019-02-23 | 2019-02-23 | Integrated transmission locking mechanism for switch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910134478.6A CN109823368B (en) | 2019-02-23 | 2019-02-23 | Integrated transmission locking mechanism for switch machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109823368A CN109823368A (en) | 2019-05-31 |
| CN109823368B true CN109823368B (en) | 2023-12-19 |
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ID=66864335
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910134478.6A Active CN109823368B (en) | 2019-02-23 | 2019-02-23 | Integrated transmission locking mechanism for switch machine |
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| Country | Link |
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| CN (1) | CN109823368B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114802348B (en) * | 2022-03-31 | 2023-12-29 | 西安铁路信号有限责任公司 | Method for monitoring locking reliability of switch machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102584A (en) * | 1987-05-05 | 1988-11-16 | 阿尔斯汤姆有限公司 | Device for operating railroad switch |
| EP2565099A1 (en) * | 2011-08-30 | 2013-03-06 | ALSTOM Transport SA | Railway switch |
| DE102013009395A1 (en) * | 2012-06-13 | 2013-12-19 | Rainer Wolber | Point machine for the switch of a railway track |
| CN106864480A (en) * | 2015-12-11 | 2017-06-20 | 天津辉煌路阳科技有限公司 | The closedown structure of goat |
| CN107792119A (en) * | 2016-08-30 | 2018-03-13 | 天津辉煌路阳科技有限公司 | Act locking separate type electrohydraulic switch machine |
| CN209600512U (en) * | 2019-02-23 | 2019-11-08 | 西安天宝信号技术有限公司 | A kind of goat integrated form transmission locking mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1241757B (en) * | 1990-07-19 | 1994-02-01 | Siliani Angiolo Spa | Equipment for operating the blades of railway points |
| ITSV20030006A1 (en) * | 2003-02-18 | 2004-08-19 | Alstom Transp Spa | CASE OF OPERATION FOR TRAVELING OR SIMILAR RAILWAY DIVERTERS. |
| ITFI20030296A1 (en) * | 2003-11-19 | 2005-05-20 | Ge Transp Systems S P A | CONTROL BOX FOR RAILWAY EXCHANGES |
-
2019
- 2019-02-23 CN CN201910134478.6A patent/CN109823368B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102584A (en) * | 1987-05-05 | 1988-11-16 | 阿尔斯汤姆有限公司 | Device for operating railroad switch |
| EP2565099A1 (en) * | 2011-08-30 | 2013-03-06 | ALSTOM Transport SA | Railway switch |
| DE102013009395A1 (en) * | 2012-06-13 | 2013-12-19 | Rainer Wolber | Point machine for the switch of a railway track |
| CN106864480A (en) * | 2015-12-11 | 2017-06-20 | 天津辉煌路阳科技有限公司 | The closedown structure of goat |
| CN107792119A (en) * | 2016-08-30 | 2018-03-13 | 天津辉煌路阳科技有限公司 | Act locking separate type electrohydraulic switch machine |
| CN209600512U (en) * | 2019-02-23 | 2019-11-08 | 西安天宝信号技术有限公司 | A kind of goat integrated form transmission locking mechanism |
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| CN109823368A (en) | 2019-05-31 |
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Effective date of registration: 20200520 Address after: 710000 No.11, Guihua Third Road, phase II, National Aviation high tech industrial base, Xi'an City, Shaanxi Province Applicant after: XI'AN TIANBAO SIGNAL TECHNOLOGY Co.,Ltd. Applicant after: BEIJING HUATIE INFORMATION TECHNOLOGY Co.,Ltd. Address before: 710000 No. 502 Xianning East Road, Xincheng District, Xi'an City, Shaanxi Province Applicant before: XI'AN TIANBAO SIGNAL TECHNOLOGY Co.,Ltd. |
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