CN114348077B - Breast-bar action state indicating device and breast-bar machine - Google Patents

Breast-bar action state indicating device and breast-bar machine Download PDF

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Publication number
CN114348077B
CN114348077B CN202210014332.XA CN202210014332A CN114348077B CN 114348077 B CN114348077 B CN 114348077B CN 202210014332 A CN202210014332 A CN 202210014332A CN 114348077 B CN114348077 B CN 114348077B
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trigger
detection switch
switch
main shaft
roller
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CN114348077A (en
Inventor
陈昊
刘振华
王冠
李继
刘尚超
张凉
闫秋吉
王振波
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CRSC Research and Design Institute Group Co Ltd
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CRSC Research and Design Institute Group Co Ltd
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Abstract

The invention relates to the field of barrier machines and discloses a barrier action state indicating device and a barrier machine. The barrier action state representation device comprises a rotating assembly, a moving assembly, a locking position detection module and a middle position detection module, wherein the rotating assembly comprises a barrier main shaft and a shifting fork, the moving assembly comprises a rolling piece, a nut seat and a rotatable screw rod, the locking position detection module comprises a first detection switch and a second detection switch, the first detection switch can detect that the nut seat moves to a first locking position, and the second detection switch can detect that the nut seat moves to a second locking position; the intermediate position detection module comprises a third detection switch and a fourth detection switch, the third detection switch can detect that the breast board main shaft rotates to a first rotation angle, and the fourth detection switch can detect that the breast board main shaft rotates to a second rotation angle. The invention realizes the omnibearing representation of the action state of the breast board, has various detection means, reliable detection result and high safety.

Description

Breast-bar action state indicating device and breast-bar machine
Technical Field
The invention relates to the field of barrier machines, in particular to a barrier action state representation device and a barrier machine.
Background
The electric barrier machine is mainly applied to a level crossing of a railway and a highway, the electric barrier machine of the railway crossing executes a crossing closing command before a train approaches the crossing, and after the electric barrier machine receives the command, the landing barrier blocks pedestrians and vehicles on the highway from passing through in the form of barrier bars, so that the safety of driving and pedestrians is ensured.
However, the rail action state of the existing rail machine is mostly determined by detecting the rotation angle of the rail main shaft of the rail machine, the detection means is single, the detection result is easy to make mistakes, and the safety is low.
Disclosure of Invention
Based on the problems, the invention aims to provide the breast board action state representation device which realizes the omnibearing representation of the breast board action state, has various detection means, reliable detection results and high safety.
Based on the problems, another object of the invention is to provide a breast board machine, which realizes omnibearing representation of the action state of the breast board, has various detection means, reliable detection result and high safety.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a boom actuation state presentation device comprising:
the rotary assembly comprises a breast board main shaft and a shifting fork, one end of the shifting fork is arranged on the breast board main shaft, and the other end of the shifting fork is provided with a limiting groove;
the moving assembly comprises a rolling element, a nut seat and a rotatable screw rod, the screw rod is in threaded fit with the nut seat, and the rolling element is rotationally arranged on the nut seat and is clamped into the limiting groove;
the locking position detection module comprises a first detection switch and a second detection switch, wherein the first detection switch can be matched with the nut seat to detect that the nut seat moves to a first locking position, and the second detection switch can be matched with the nut seat to detect that the nut seat moves to a second locking position;
the intermediate position detection module comprises a third detection switch and a fourth detection switch, wherein the third detection switch can be matched with the breast board main shaft to detect that the breast board main shaft rotates to a first rotation angle, and the fourth detection switch can be matched with the breast board main shaft to detect that the breast board main shaft rotates to a second rotation angle.
As an alternative scheme of the breast board action state indicating device, the first detection switch comprises a first base, a first trigger switch, a first trigger rod and a first roller, wherein the first trigger switch is arranged on the first base, the first trigger rod is movably arranged on the first base, the first roller is rotatably arranged at the bottom of the first trigger rod, a first bulge is arranged on the nut seat, and when the nut seat moves to the first locking position, the first roller is abutted to the first bulge and presses the first trigger rod so that the first trigger rod starts the first trigger switch.
As an alternative to the rail action state indicating device of the present invention, the first detection switch further includes a first elastic member, where the first elastic member is used for resetting the first trigger lever.
As an alternative scheme of the rail action state indicating device, the second detecting switch comprises a second base, a second trigger switch, a second trigger rod and a second roller, wherein the second trigger switch is arranged on the second base, the second trigger rod is movably arranged on the second base, the second roller is rotatably arranged at the bottom of the second trigger rod, and when the nut seat moves to the second locking position, the second roller is abutted against the first protrusion and presses the second trigger rod, so that the second trigger rod starts the second trigger switch.
As an alternative to the rail action state indicating device of the present invention, the second detection switch further includes a second elastic member, where the second elastic member is used for resetting the second trigger lever.
As an alternative scheme of the railing action state indicating device, the third detecting switch comprises a third base, a third trigger switch, a third trigger rod and a third roller, wherein the third trigger switch is arranged on the third base, the third trigger rod is movably arranged on the third base, the third roller is rotatably arranged at the bottom of the third trigger rod, a second bulge is arranged on the railing main shaft, and when the railing main shaft rotates to the first rotation angle, the third roller is abutted with the second bulge and presses the third trigger rod so that the third trigger rod starts the third trigger switch.
As an alternative of the rail action state indicating device of the present invention, the third detection switch further includes a third elastic member, and the third elastic member is used for resetting the third trigger lever.
As an alternative scheme of the railing action state indicating device, the fourth detecting switch comprises a fourth base, a fourth trigger switch, a fourth trigger rod and a fourth roller, wherein the fourth trigger switch is arranged on the fourth base, the fourth trigger rod is movably arranged on the fourth base, the fourth roller is rotatably arranged at the bottom of the fourth trigger rod, a third protrusion is arranged on the railing main shaft, and when the railing main shaft rotates to the second rotation angle, the fourth roller is abutted with the third protrusion and presses the fourth trigger rod so that the fourth trigger rod starts the fourth trigger switch.
As an alternative of the rail action state indicating device of the present invention, the fourth detection switch further includes a fourth elastic member, where the fourth elastic member is used for resetting the fourth trigger lever.
The barrier machine comprises the barrier action state indicating device.
The beneficial effects of the invention are as follows:
according to the barrier action state indicating device and the barrier machine comprising the same, the screw rod rotates to drive the nut seat to move, the barrier main shaft is driven to rotate through the shifting fork under the limit fit of the rolling piece and the limit groove of the shifting fork, so that the lifting action of the barrier is controlled, when the nut seat moves to the first locking position, the barrier lifting state is indicated through the first detection switch, when the nut seat moves to the second locking position, the barrier falling state is indicated through the second detection switch, when the barrier is between the lifting state and the falling state, the barrier main shaft is detected to rotate to the first rotation angle through the third detection switch, the barrier main shaft is detected to rotate to the second rotation angle through the fourth detection switch, the locking position of the nut seat and the rotation angle of the barrier main shaft are detected, the omnibearing indication of the barrier action state is realized, the detection means is various, the detection result is reliable, and the safety is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a rail action state indicating device according to an embodiment of the present invention;
FIG. 2 is an exploded view of a boom actuation state presentation device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first detection switch in a rail motion state indicating device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second detection switch in the rail action state indicating device according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third detection switch in the rail action state indicating device according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fourth detection switch in the rail motion state indicating device according to the embodiment of the present invention.
In the figure:
1-a rotating assembly; 2-a moving assembly; 3-a lock position detection module; 4-a middle bit detection module; 5-first
A mounting frame; 6-a second mounting frame; 7-a third mounting frame; 8-fourth mounting frame;
11-a breast board main shaft; 12-shifting fork;
111-second protrusions; 112-a third bump;
21-rolling elements; 22-a nut seat; 221-a first bump; 23-screw rod;
31-a first detection switch; 32-a second detection switch;
311-a first base; 312-a first trigger switch; 313-a first trigger lever; 314—a first roller; 315-a first elastic member;
321-a second base; 322-a second trigger switch; 323-a second trigger lever; 324-a second roller; 325-a second elastic member;
41-a third detection switch; 42-fourth detection switch;
411-a third base; 412-a third trigger switch; 413-a third trigger lever; 414-a third roller;
421-fourth mount; 422-fourth trigger switch; 423-fourth trigger lever; 424-fourth roller.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 6, the present embodiment provides a rail motion state indicating device including a rotating assembly 1, a moving assembly 2, a lock position detecting module 3, and a middle position detecting module 4.
The rotating assembly 1 comprises a breast board main shaft 11 and a shifting fork 12, one end of the shifting fork 12 is installed on the breast board main shaft 11, and the other end of the shifting fork is provided with a limiting groove. The moving assembly 2 comprises a rolling element 21, a nut seat 22 and a rotatable screw rod 23, wherein the screw rod 23 is in threaded fit with the nut seat 22, and the rolling element 21 is rotatably arranged on the nut seat 22 and is clamped into the limiting groove. The locking position detecting module 3 includes a first detecting switch 31 and a second detecting switch 32, the first detecting switch 31 can be matched with the nut seat 22 to detect that the nut seat 22 moves to the first locking position, and the second detecting switch 32 can be matched with the nut seat 22 to detect that the nut seat 22 moves to the second locking position. The intermediate position detection module 4 comprises a third detection switch 41 and a fourth detection switch 42, wherein the third detection switch 41 can be matched with the breast board main shaft 11 to detect that the breast board main shaft 11 rotates to a first rotation angle, and the fourth detection switch 42 can be matched with the breast board main shaft 11 to detect that the breast board main shaft 11 rotates to a second rotation angle.
The screw rod 23 rotates to drive the nut seat 22 to move, and under the limit fit of the rolling element 21 and the limit groove of the shifting fork 12, the shifting fork 12 drives the breast board main shaft 11 to rotate (for example, from 0 degree to 90 degrees), so as to control the lifting action of the breast board. When the nut seat 22 is moved to the first locking position, the first detection switch 31 indicates the lifted state of the rail. When the nut seat 22 is moved to the second locking position, the second detection switch 32 indicates the falling state of the rail. When the boom is between the raised state and the lowered state, the rotation of the boom main shaft 11 to the first rotation angle (for example, 15 °) is detected by the third detection switch 41, and the rotation of the boom main shaft 11 to the second rotation angle (for example, 75 °) is detected by the fourth detection switch 42. By detecting the locking position of the nut seat 22 and the rotation angle of the breast board main shaft 11, the omnibearing representation of the breast board action state is realized, the detection means are various, the detection result is reliable, and the safety is high.
In this embodiment, the first detection switch 31 includes a first base 311, a first trigger switch 312, a first trigger lever 313 and a first roller 314, the first trigger switch 312 is disposed on the first base 311, the first trigger lever 313 is movably disposed on the first base 311, the first roller 314 is rotatably disposed at the bottom of the first trigger lever 313, a first protrusion 221 is disposed on the nut seat 22, and when the nut seat 22 moves to the first locking position, the first roller 314 abuts against the first protrusion 221 and presses the first trigger lever 313, so that the first trigger lever 313 starts the first trigger switch 312. Optionally, the first detection switch 31 further includes a first elastic member 315, where the first elastic member 315 is used for resetting the first trigger lever 313. The first elastic member 315 may be a rubber sleeve, where one end of the rubber sleeve is connected to the first base 311, and the other end of the rubber sleeve is sleeved on the first trigger rod 313, so as to implement elastic connection of the first trigger rod 313.
In this embodiment, the second detection switch 32 includes a second base 321, a second trigger switch 322, a second trigger lever 323 and a second roller 324, where the second trigger switch 322 is disposed on the second base 321, the second trigger lever 323 is movably disposed on the second base 321, the second roller 324 is rotatably disposed at the bottom of the second trigger lever 323, and when the nut seat 22 moves to the second locking position, the second roller 324 abuts against the first protrusion 221 and presses the second trigger lever 323, so that the second trigger lever 323 starts the second trigger switch 322. Optionally, the second detection switch 32 further includes a second elastic member 325, where the second elastic member 325 is used to reset the second trigger bar 323. The second elastic member 325 may be a rubber sleeve, one end of the rubber sleeve is connected with the second base 321, and the other end of the rubber sleeve is sleeved on the second trigger rod 323, so as to realize elastic connection of the second trigger rod 323.
In this embodiment, the third detection switch 41 includes a third base 411, a third trigger switch 412, a third trigger lever 413 and a third roller 414, the third trigger switch 412 is disposed on the third base 411, the third trigger lever 413 is movably disposed on the third base 411, the third roller 414 is rotatably disposed at the bottom of the third trigger lever 413, the second protrusion 111 is disposed on the rail main shaft 11, and when the rail main shaft 11 rotates to the first rotation angle, the third roller 414 abuts against the second protrusion 111 and presses the third trigger lever 413, so that the third trigger lever 413 starts the third trigger switch 412. Optionally, the third detection switch 41 further includes a third elastic member for resetting the third trigger lever 413. The third trigger lever 413 may be rotatably disposed on the third base 411, and the third elastic member may be a torsion spring. The third roller 414 abuts against the second protrusion 111 and presses the third trigger lever 413, and the third trigger lever 413 rotates to activate the third trigger switch 412, and the torsion spring compresses the energy storage. When the third roller 414 is disengaged from the second protrusion 111, the torsion spring releases elastic potential energy, so that the third trigger lever 413 is reset.
In this embodiment, the fourth detection switch 42 includes a fourth base 421, a fourth trigger switch 422, a fourth trigger lever 423 and a fourth roller 424, the fourth trigger switch 422 is disposed on the fourth base 421, the fourth trigger lever 423 is movably disposed on the fourth base 421, the fourth roller 424 is rotatably disposed at the bottom of the fourth trigger lever 423, the third protrusion 112 is disposed on the rail main shaft 11, and when the rail main shaft 11 rotates to the second rotation angle, the fourth roller 424 abuts against the third protrusion 112 and presses the fourth trigger lever 423, so that the fourth trigger lever 423 starts the fourth trigger switch 422. Optionally, the fourth detecting switch 42 further includes a fourth elastic member, where the fourth elastic member is used to reset the fourth trigger lever 423. The third trigger lever 413 may be rotatably disposed on the third base 411, and the third elastic member may be a torsion spring. The fourth roller 424 abuts against the third protrusion 112 and presses the fourth trigger lever 423, and the fourth trigger lever 423 rotates to start the fourth trigger switch 422, and at the same time, the torsion spring compresses the energy storage. When the fourth roller 424 is disengaged from the third protrusion 112, the torsion spring releases the elastic potential energy, so that the fourth trigger lever 423 is reset. The second protrusion 111 and the third protrusion 112 may be arc-shaped protrusions, and are disposed on the rail main shaft 11 side by side and concentric with the rail main shaft 11.
For easy to assemble, this breast board motion state presentation device still includes first mounting bracket 5, second mounting bracket 6, third mounting bracket 7 and fourth mounting bracket 8, and rotating assembly 1 installs on first mounting bracket 5, and second mounting bracket 6, third mounting bracket 7 and fourth mounting bracket 8 are installed respectively on first mounting bracket 5, and first detection switch 31 is installed on second mounting bracket 6, and second detection switch 32 is installed on third mounting bracket 7, and third detection switch 41 and fourth detection switch 42 are all installed on fourth mounting bracket 8.
The number of the first detection switch 31, the second detection switch 32, the third detection switch 41, and the fourth detection switch 42 is not limited, and may be determined according to actual situations.
The embodiment also provides a breast board machine, including foretell breast board action state representation device, realized the omnidirectional of breast board action state and represented, detection means is various, and the testing result is reliable, and the security is high.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (8)

1. A boom actuation state presentation device, comprising:
the rotary assembly (1) comprises a breast board main shaft (11) and a shifting fork (12), wherein one end of the shifting fork (12) is arranged on the breast board main shaft (11), and the other end of the shifting fork is provided with a limiting groove;
the moving assembly (2) comprises a rolling element (21), a nut seat (22) and a rotatable screw rod (23), wherein the screw rod (23) is in threaded fit with the nut seat (22), and the rolling element (21) is rotatably arranged on the nut seat (22) and is clamped in the limiting groove;
a locking position detection module (3) comprising a first detection switch (31) and a second detection switch (32), wherein the first detection switch (31) can be matched with the nut seat (22) to detect that the nut seat (22) moves to a first locking position, and the second detection switch (32) can be matched with the nut seat (22) to detect that the nut seat (22) moves to a second locking position;
the middle position detection module (4) comprises a third detection switch (41) and a fourth detection switch (42), wherein the third detection switch (41) can be matched with the breast board main shaft (11) to detect that the breast board main shaft (11) rotates to a first rotation angle, and the fourth detection switch (42) can be matched with the breast board main shaft (11) to detect that the breast board main shaft (11) rotates to a second rotation angle;
the third detection switch (41) comprises a third base (411), a third trigger switch (412), a third trigger rod (413) and a third roller (414), the third trigger switch (412) is arranged on the third base (411), the third trigger rod (413) is movably arranged on the third base (411), the third roller (414) is rotatably arranged at the bottom of the third trigger rod (413), a second protrusion (111) is arranged on the breast-tree main shaft (11), when the breast-tree main shaft (11) rotates to the first rotation angle, the third roller (414) is in butt joint with the second protrusion (111) and presses the third trigger rod (413), so that the third trigger rod (413) starts the third trigger switch (412);
the fourth detection switch (42) comprises a fourth base (421), a fourth trigger switch (422), a fourth trigger rod (423) and a fourth roller (424), wherein the fourth trigger switch (422) is arranged on the fourth base (421), the fourth trigger rod (423) is movably arranged on the fourth base (421), the fourth roller (424) is rotatably arranged at the bottom of the fourth trigger rod (423), a third protrusion (112) is arranged on the breast-tree main shaft (11), and when the breast-tree main shaft (11) rotates to the second rotation angle, the fourth roller (424) is abutted to the third protrusion (112) and presses the fourth trigger rod (423), so that the fourth trigger rod (423) starts the fourth trigger switch (422).
2. The breast board action state indicating device according to claim 1, wherein the first detection switch (31) comprises a first base (311), a first trigger switch (312), a first trigger lever (313) and a first roller (314), the first trigger switch (312) is arranged on the first base (311), the first trigger lever (313) is movably arranged on the first base (311), the first roller (314) is rotatably arranged at the bottom of the first trigger lever (313), a first protrusion (221) is arranged on the nut seat (22), and when the nut seat (22) moves to the first locking position, the first roller (314) is abutted with the first protrusion (221) and presses the first trigger lever (313) so that the first trigger lever (313) starts the first trigger switch (312).
3. The boom actuation state indicating device according to claim 2, wherein said first detection switch (31) further comprises a first elastic member (315), said first elastic member (315) being configured to reset said first trigger lever (313).
4. The boom actuation state indicating device according to claim 2, wherein the second detection switch (32) includes a second base (321), a second trigger switch (322), a second trigger lever (323), and a second roller (324), the second trigger switch (322) is disposed on the second base (321), the second trigger lever (323) is movably disposed on the second base (321), the second roller (324) is rotatably disposed at a bottom of the second trigger lever (323), and when the nut seat (22) moves to the second locking position, the second roller (324) abuts against the first protrusion (221) and presses the second trigger lever (323), so that the second trigger lever (323) activates the second trigger switch (322).
5. The boom actuation state indicating device of claim 4, wherein the second detection switch (32) further comprises a second elastic member (325), the second elastic member (325) being configured to reset the second trigger lever (323).
6. The boom actuation state indicating device according to claim 1, wherein said third detection switch (41) further comprises a third elastic member for resetting said third trigger lever (413).
7. The boom actuation state indicating device of claim 1, wherein the fourth detection switch (42) further comprises a fourth elastic member for resetting the fourth trigger lever (423).
8. A barrier machine comprising a barrier action status indication device as claimed in any one of claims 1 to 7.
CN202210014332.XA 2022-01-04 2022-01-04 Breast-bar action state indicating device and breast-bar machine Active CN114348077B (en)

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Application Number Priority Date Filing Date Title
CN202210014332.XA CN114348077B (en) 2022-01-04 2022-01-04 Breast-bar action state indicating device and breast-bar machine

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Application Number Priority Date Filing Date Title
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CN114348077B true CN114348077B (en) 2023-09-05

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85202442U (en) * 1985-06-22 1987-05-06 西安铁路信号工厂 Electric gate for road crossing traffic
CN2151173Y (en) * 1993-06-03 1993-12-29 仲素华 Protective barrier for level crossing of railway
JPH10119781A (en) * 1996-09-02 1998-05-12 Nippon Signal Co Ltd:The Electric crossing gate
CN202023163U (en) * 2011-03-03 2011-11-02 山西太钢不锈钢股份有限公司 Barrier machine
KR20120112197A (en) * 2011-03-30 2012-10-11 정웅선 Structure of limit switch assembly
JP2014091418A (en) * 2012-11-02 2014-05-19 Daido Signal Co Ltd Railroad crossing gate
JP2017222291A (en) * 2016-06-16 2017-12-21 株式会社京三製作所 Railroad crossing gate
CN108891450A (en) * 2018-08-02 2018-11-27 北京全路通信信号研究设计院集团有限公司 Level crossing Electric gate machine
CN209064117U (en) * 2018-08-02 2019-07-05 北京全路通信信号研究设计院集团有限公司 Level crossing Electric gate machine
CN210707434U (en) * 2019-09-12 2020-06-09 通号万全信号设备有限公司 Node adjusting seat of rail machine
CN213442574U (en) * 2020-11-06 2021-06-15 北京全路通信信号研究设计院集团有限公司 Self-locking mechanism and rail machine
KR20210110017A (en) * 2020-02-28 2021-09-07 장현실 Safety management system for public parking lot

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85202442U (en) * 1985-06-22 1987-05-06 西安铁路信号工厂 Electric gate for road crossing traffic
CN2151173Y (en) * 1993-06-03 1993-12-29 仲素华 Protective barrier for level crossing of railway
JPH10119781A (en) * 1996-09-02 1998-05-12 Nippon Signal Co Ltd:The Electric crossing gate
CN202023163U (en) * 2011-03-03 2011-11-02 山西太钢不锈钢股份有限公司 Barrier machine
KR20120112197A (en) * 2011-03-30 2012-10-11 정웅선 Structure of limit switch assembly
JP2014091418A (en) * 2012-11-02 2014-05-19 Daido Signal Co Ltd Railroad crossing gate
JP2017222291A (en) * 2016-06-16 2017-12-21 株式会社京三製作所 Railroad crossing gate
CN108891450A (en) * 2018-08-02 2018-11-27 北京全路通信信号研究设计院集团有限公司 Level crossing Electric gate machine
CN209064117U (en) * 2018-08-02 2019-07-05 北京全路通信信号研究设计院集团有限公司 Level crossing Electric gate machine
CN210707434U (en) * 2019-09-12 2020-06-09 通号万全信号设备有限公司 Node adjusting seat of rail machine
KR20210110017A (en) * 2020-02-28 2021-09-07 장현실 Safety management system for public parking lot
CN213442574U (en) * 2020-11-06 2021-06-15 北京全路通信信号研究设计院集团有限公司 Self-locking mechanism and rail machine

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