CN111071290A - Special emergent decelerator of railway - Google Patents

Special emergent decelerator of railway Download PDF

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Publication number
CN111071290A
CN111071290A CN201911418719.6A CN201911418719A CN111071290A CN 111071290 A CN111071290 A CN 111071290A CN 201911418719 A CN201911418719 A CN 201911418719A CN 111071290 A CN111071290 A CN 111071290A
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CN
China
Prior art keywords
left end
end wall
cavity
rod
friction
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Granted
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CN201911418719.6A
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Chinese (zh)
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CN111071290B (en
Inventor
不公告发明人
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Xi'an Tangtie Machinery Co ltd
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Shaoxing Shangyudujin Electronic Technology Co Ltd
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Priority to CN201911418719.6A priority Critical patent/CN111071290B/en
Publication of CN111071290A publication Critical patent/CN111071290A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61KAUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/16Positive railway stops
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T5/00Vehicle modifications to facilitate cooling of brakes
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/32Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention discloses a special emergency speed reducer for a railway, which comprises a machine body, wherein a buffer cavity with an opening facing the right is arranged inside the right side of the machine body, an ejector rod penetrating through the right end wall of the buffer cavity is slidably arranged in the buffer cavity, the left end of the ejector rod is provided with a high-strength spring, the left end of the ejector rod is fixedly connected with a main rack, the high-strength spring is fixedly connected with the left end wall of the buffer cavity, air pipes are arranged below the left sides of the front end wall and the rear end wall of the buffer cavity, and the left side of each air pipe is connected with an air inlet valve.

Description

Special emergent decelerator of railway
Technical Field
The invention relates to the technical field of railway braking deceleration, in particular to an emergency deceleration device special for a railway.
Background
The emergency speed reducer for railway is set on train and at the end of railway, the emergency speed reducer makes the train brake the last line of defense, and the stop device installed at the end of railway is the safety equipment to prevent the train from sliding and colliding with the stop.
In actual conditions, the emergency brake on the train has certain probability, the situation that the brake cannot be carried out or the brake force is insufficient can occur, and the train stopper has the characteristic of immobility and poor flexibility, so that the emergency speed reducer special for the railway is designed to solve the problems.
Disclosure of Invention
Aiming at the technical defects, the invention provides the emergency speed reducer special for the railway, which can overcome the defects.
The invention relates to a railway special emergency speed reducer, which comprises a machine body, wherein a buffer cavity with an opening facing to the right is arranged inside the right side of the machine body, an ejector rod penetrating through the right end wall of the buffer cavity is slidably mounted in the buffer cavity, a high-strength spring is arranged at the left end of the ejector rod, a main rack is fixedly connected with the left end of the ejector rod, the high-strength spring is fixedly connected with the left end wall of the buffer cavity, air pipes are arranged below the left sides of the front end wall and the rear end wall of the buffer cavity, the left side of each air pipe is connected with an air inlet valve, friction cavities which are symmetrical in the front and back are arranged below the machine body, a main friction device is arranged in each friction cavity, a central cavity is arranged on the left side of the buffer cavity, an underframe which is slidably connected with the machine body is arranged below the central cavity, the left end wall of centre bore is located the symmetry is provided with cooling device around the top of motor, the main rack left end is fixed with the transit bar on perpendicular ground, the transit bar lower extreme articulates there are two preceding push rods and the back push rod parallel with ground, preceding push rod left end articulates there is back atress pole, back push rod left end articulates there is preceding atress pole, back atress pole left end articulates on the friction plate in the back, preceding atress pole left end articulates on the friction plate in the front, preceding atress pole with the intersection rotation of back atress pole is connected the lower extreme of the fixed bracing piece of centre bore upper end wall.
Preferably, the main friction device comprises an air cylinder fixedly arranged on the right end wall of the friction cavity, the right end of the air cylinder is connected with the air inlet valve, the left end of the air cylinder is provided with an air cylinder rod, the left end of the air cylinder rod is fixedly connected with a sliding block, a guide rail is arranged below the sliding block, the sliding block slides left and right in the guide rail, the left end of the sliding block is rotatably connected with a driving rod, the right end of the sliding block is rotatably connected with a driven rod, the left end of the driving rod and the left end of the driven rod are rotatably connected with a main friction plate, and the left rear end wall of the friction cavity is provided with a brake port communicated.
Preferably, the running device comprises a transmission cavity arranged in the left side of the underframe, an output shaft is arranged at the right end of the motor, a spline which is in sliding connection with a spline hole at the left end of a driving bevel gear in the transmission cavity is arranged at the right end of the output shaft, a rear bevel gear is meshed at the rear end of the driving bevel gear, a front bevel gear is meshed at the front end of the driving bevel gear, a driving front shaft is fixedly connected at the front end of the front bevel gear, a driving rear shaft is fixedly connected at the rear end of the rear bevel gear, wheels are fixedly arranged at the front end of the driving front shaft and the rear end of the driving rear shaft, a power generation cavity is arranged in the right side of the underframe, magnets are fixed on the left end wall and the right end wall of the power generation cavity, through holes communicated with the outside are formed in the front end wall and the rear end wall of the power generation cavity, a driven shaft passing, the fixed coil that is located the electricity generation intracavity that is provided with in driven shaft outside, electricity generation chamber left side is provided with the battery, the right side terminal surface front and back symmetry of chassis is provided with preceding rack and back rack, the meshing of preceding rack top has preceding gear, the meshing of back rack top has the back gear, preceding gear with the back gear is fixed set up with the transmission of center chamber front end wall and back end wall internal rotation connection is epaxial, the fixed transmission gear that is provided with in centre of transmission shaft, the upper end of transmission gear with the meshing of main rack.
Preferably, cooling device sets up in the left end wall of centre bore and is located including the symmetry the cooling tank of motor top, the cooling tank right side is opened has the communicating outlet with the external world the right side of cooling tank is provided with the communicating and opening towards right ejecting chamber of outlet, fixedly connected with ejection spring on the ejecting chamber left end wall, ejection spring right side fixedly connected with ejection block, ejection block upper portion left side is rotated and is connected with the connecting rod, the connecting rod left end is rotated and is connected with driven slider, driven slider rear end is fixed with be located the outlet and with its sealed sealing block.
The beneficial effects are that: the device is placed on a rail, so that the wheels normally operate on the rail, the motor is started, the motor supplies power through the storage battery, the motor drives the wheels to rotate, and the device can move on the rail, so that the speed reduction device can freely move on the rail, can be quickly deployed according to actual conditions, does not need to be installed or dismantled, and saves labor force.
When a vehicle in danger contacts the ejector rod on the rightmost side of the device, compressed gas in the buffer cavity is transmitted into the air cylinder, the vermilion friction device is in full contact and friction with an external rail through the movement of the air cylinder, and meanwhile, when the ejector rod drives the main rack to move leftwards, the front friction plate and the rear friction plate are in full contact and friction with the wheels arranged on the driving front shaft and the driving rear shaft through the transmission of the connecting rod, so that the requirement of emergency deceleration of the vehicle can be met, the device can be repeatedly used, the replacement of key parts is avoided, and a large number of resources are saved;
the device is forced to move leftwards, the wheels also start to rotate, the driven shaft drives the coil to start to rotate, the device starts to generate electricity and is stored in the storage battery, the ejection block moves rightwards, the connecting rod drives the driven sliding block and the sealing block to move, the outflow hole is communicated with the outside, cooling liquid in the cooling box flows out, the friction device is cooled, and therefore the device can be fully automatically cooled, the service life of the braking device is prolonged, the storage battery can be recharged, a large amount of resources are saved, and meanwhile, the utilization rate of the resources can be improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of an emergency speed reducer for railway use according to the present invention;
FIG. 2 is a top cross-sectional view of this FIG. 1;
fig. 3 is a structural sectional view of the cooling device of fig. 1.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a railway special emergency speed reducer, which comprises a machine body 16, wherein a buffer cavity 43 with an opening facing to the right is arranged inside the right side of the machine body 16, a push rod 42 penetrating through the right end wall of the buffer cavity 43 is arranged in the buffer cavity 43 in a sliding manner, the left end of the push rod 42 is provided with a high-strength spring 41, the left end of the push rod 42 is fixedly connected with a main rack 40, the high-strength spring 41 is fixedly connected with the left end wall of the buffer cavity 43, an air pipe 2 is arranged below the left sides of the front end wall and the rear end wall of the buffer cavity 43, the left side of the air pipe 2 is connected with an air inlet valve 3, a friction cavity 14 which is symmetrical in the front and the back is arranged below the machine body 16, a main friction device is arranged in the friction cavity 14, a central cavity 44 is arranged on the left side of the buffer cavity 43, a bottom frame 33 which, the utility model discloses a cooling device, including central chamber 44, central chamber 4, motor 23, transfer bar 52, preceding pole 6, back pole 32, preceding pole 26, preceding pole 19, back pole 26, back friction disc 27, preceding pole 19, the lower extreme of back pole 26, the lower extreme of bracing piece 22 is connected in the rotation of the intersection of preceding pole 19 and back pole 26, the left end wall internal fixation of central chamber 44 is provided with motor 23, the left end wall of central chamber 4 is located the symmetry is provided with cooling device around the top of motor 23, the transfer bar 52 left end is fixed with perpendicular ground, the lower extreme of two parallel preceding push rods 6 and back push rod 32 that are articulated with ground, preceding pole 6 left end is articulated to have back pole 26, back push rod 32 left end is articulated to have preceding pole 19, back pole 26 left end is articulated on back friction disc 27.
Advantageously, the main friction device comprises a cylinder 4 fixedly arranged on the right end wall of the friction cavity 14, the right end of the cylinder 4 is connected with the air inlet valve 3, the left end of the cylinder is provided with a cylinder rod 8, the left end of the cylinder rod 8 is fixedly connected with a slide block 11, a guide rail 15 is arranged below the slide block 11, the slide block 11 slides left and right in the guide rail 15, the left end of the slide block 11 is rotatably connected with a driving rod 12, the right end of the slide block 11 is rotatably connected with a driven rod 10, the left end of the driving rod 12 and the left end of the driven rod 10 are rotatably connected with a main friction plate 13, and the left rear end wall of the friction cavity 14 is provided with a brake port communicated with the outside.
Advantageously, the driving device comprises a transmission cavity 28 arranged in the left side of the chassis 33, an output shaft 24 is arranged at the right end of the motor 23, a spline slidably connected with a spline hole at the left end of a drive bevel gear 25 positioned in the transmission cavity 28 is arranged at the right end of the output shaft 24, a rear bevel gear 29 is engaged at the rear end of the drive bevel gear 25, a front bevel gear 21 is engaged at the front end of the drive bevel gear 25, a drive front shaft 7 is fixedly connected at the front end of the front bevel gear 21, a drive rear shaft 30 is fixedly connected at the rear end of the rear bevel gear 29, wheels 9 are fixedly arranged at the front end of the drive front shaft 7 and the rear end of the drive rear shaft 30, a power generation cavity 35 is arranged in the right side of the chassis 33, magnets 34 are fixed on the left end wall and the right end wall of the power generation cavity 35, through holes communicated with the outside are formed on the front end wall and the rear end wall of the power generation, the front end and the rear end of driven shaft 5 are all fixed and are provided with wheel 9, the fixed coil 36 that is located electricity generation chamber 35 that is provided with in the driven shaft 5 outside, electricity generation chamber 35 left side is provided with battery 31, the symmetry is provided with preceding rack 45 and back rack 51 around the right side terminal surface of chassis 33, preceding rack 45 top meshing has preceding gear 1, back rack 51 top meshing has back gear 39, preceding gear 1 with back gear 39 is fixed set up with on the transmission shaft 38 of center chamber 44 front end wall and the back end wall internal rotation connection, the fixed transmission gear 37 that is provided with in centre of transmission shaft 38, the upper end of transmission gear 37 with the meshing of master rack 40.
Advantageously, the cooling device comprises a cooling box 20 which is arranged in the left end wall of the central cavity 44 in a front-back symmetrical manner and is positioned above the motor 23, the right side of the cooling box 20 is provided with an outflow hole communicated with the outside, the right side of the cooling box 20 is provided with a push-out cavity 46 which is communicated with the outflow hole and is opened towards the right, the left end wall of the push-out cavity 46 is fixedly connected with a push-out spring 18, the right side of the push-out spring 18 is fixedly connected with a push-out block 17, the left side of the upper part of the push-out block 17 is rotatably connected with a connecting rod 47, the left end of the connecting rod 47 is rotatably connected with a driven slide block 48, and the rear end of the.
In the initial state, the high-strength spring 41 is in a compressed state, the buffer chamber 43 is filled with compressed gas, the cooling tank 20 is filled with cooling liquid, the ejector spring 18 is in a compressed state, the ejector block 17 is in the ejector chamber 46, the outflow hole is sealed by the sealing block 49, the main friction device is located at the initial position at the right end inside the friction chamber 14, and the output shaft 24 is connected with the drive bevel gear 25.
When the device starts to work, the device is placed on a rail, the wheel 9 normally runs on the rail, the motor 23 is turned on, the motor 23 is powered by the storage battery 31, the motor 23 drives the output shaft 24 to rotate, the output shaft 24 drives the driving bevel gear 25 to rotate, so that the front bevel gear 21 and the rear bevel gear 29 rotate, and further respectively drive the driving front shaft 7 and the driving rear shaft 30 to rotate, and further the wheel 9 rotates, the device can move on the rail, when a vehicle in danger contacts the ejector rod 42 at the rightmost side of the device, the ejector rod 42 moves leftwards, so that the high-strength spring 41 is compressed, compressed gas in the buffer cavity 43 is transmitted to the cylinder 4 through the air inlet valve 3 arranged at the left end of the air pipe 2, so that the cylinder rod 8 moves leftwards, and further moving the slide block 11 leftward along the guide rail 15, when the slide block 11 moves to the leftmost end of the friction chamber, the driving rod 12 contacts the left end wall of the friction chamber, so that the driving rod 12 rotates upward, so that the driven rod 10 rotates upward, so that the main friction plate 13 moves outward through the braking opening, so that the main friction plate 13 is sufficiently contacted with and rubbed against the external rail, and when the carrier rod 42 moves leftward, the main rack 40 also moves leftward, so that the transmission gear 37 rotates, so that the transmission shaft 38 rotates, so that the rear gear 39 and the front gear 1 rotate, so that the rear rack 51 and the front rack 45 move rightward, so that the base frame 33 moves upward, so that the output shaft 24 and the driving bevel gear are disconnected, at which time, since the device is forced to move leftward, the wheel 9 also starts to rotate, the driven shaft 5 starts to rotate, so that the coil 36 starts to rotate, the device starts to generate power and is stored in the storage battery 31 due to the existence of the magnet 34, meanwhile, when the main rack 40 moves to the left, the middle rotating rod 52 also moves to the left, so that the rear push rod 32 and the front push rod 6 move to the left, but the rear push rod 32 and the front push rod 6 do circular motion around the middle rotating rod 52 due to the effects of the rear stress rod 26, the front stress rod 19 and the support rod 22, and the right ends of the front stress rod 19 and the rear stress rod 26 respectively move forwards and backwards, so that the left ends of the front stress rod 19 and the rear stress rod 26 respectively do circular motion around the support rod 22 due to the effect of the support rod 22, and then the rear friction plate 27 is driven to move towards and the front friction plate 50, so that the rear friction plate is fully contacted and rubbed with the wheels 9 arranged on the driving front shaft 7 and the driving rear shaft 30, and meanwhile, the ejection block 17 moves towards the right side under the action of the ejection spring 18, so that the connecting rod 47 drives the driven slide block 48 and the sealing block 49 to move, further the outflow hole is communicated with the outside, the cooling liquid in the cooling box 20 flows out, and the friction device is cooled.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims (4)

1. The utility model provides a special emergent decelerator of railway, includes the organism, its characterized in that: a buffer cavity with an opening facing to the right is arranged inside the right side of the machine body, a push rod penetrating through the right end wall of the buffer cavity is slidably mounted in the buffer cavity, a high-strength spring is arranged at the left end of the push rod, a main rack is fixedly connected with the left end of the push rod, the high-strength spring is fixedly connected with the left end wall of the buffer cavity, an air pipe is arranged below the left sides of the front end wall and the rear end wall of the buffer cavity, the left side of the air pipe is connected with an air inlet valve, friction cavities which are symmetrical front and back are arranged below the machine body, a main friction device is arranged in the friction cavities, a central cavity is arranged on the left side of the buffer cavity, a bottom frame which is slidably connected with the machine body is arranged below the central cavity, a running device is arranged in the bottom frame, a motor is fixedly arranged in the left end wall of, the utility model discloses a friction disc brake device, including main rack, back, front and back friction plates, the main rack left end is fixed with the transfer bar on perpendicular ground, the transfer bar lower extreme articulates there are two preceding push rods and the back push rod parallel with ground, preceding push rod left end articulates there is back atress pole, back push rod left end articulates there is preceding atress pole, back atress pole left end articulates on the friction plate in the back, preceding atress pole left end articulates on the friction plate in the front, preceding atress pole with the intersection rotation of back atress pole is connected the lower extreme of the fixed bracing piece of center cavity upper end wall.
2. The emergency deceleration device for railway of claim 1, wherein: the main friction device comprises an air cylinder fixedly arranged on the right end wall of the friction cavity, the right end of the air cylinder is connected with the air inlet valve, the left end of the air cylinder is provided with an air cylinder rod, the left end of the air cylinder rod is fixedly connected with a sliding block, a guide rail is arranged below the sliding block, the sliding block slides left and right in the guide rail, the left end of the sliding block is rotatably connected with a driving rod, the right end of the sliding block is rotatably connected with a driven rod, the left end of the driving rod and the left end of the driven rod are rotatably connected with a main friction plate, and the rear end wall of the left side of the friction cavity is provided with.
3. The emergency deceleration device for railway of claim 1, wherein: the driving device comprises a transmission cavity arranged in the left side of the underframe, an output shaft is arranged at the right end of the motor, a spline which is in sliding connection with a spline hole at the left end of a driving bevel gear positioned in the transmission cavity is arranged at the right end of the output shaft, a rear bevel gear is meshed at the rear end of the driving bevel gear, a front bevel gear is meshed at the front end of the driving bevel gear, a driving front shaft is fixedly connected at the front end of the front bevel gear, a driving rear shaft is fixedly connected at the rear end of the rear bevel gear, wheels are fixedly arranged at the front end of the driving front shaft and the rear end of the driving rear shaft, a power generation cavity is arranged in the right side of the underframe, magnets are fixed on the left end wall and the right end wall of the power generation cavity, through holes communicated with the outside are formed in the front end wall and the rear end wall of the power generation cavity, a driven, the fixed coil that is located the electricity generation intracavity that is provided with in driven shaft outside, electricity generation chamber left side is provided with the battery, the right side terminal surface front and back symmetry of chassis is provided with preceding rack and back rack, the meshing of preceding rack top has preceding gear, the meshing of back rack top has the back gear, preceding gear with the back gear is fixed set up with the transmission of center chamber front end wall and back end wall internal rotation connection is epaxial, the fixed transmission gear that is provided with in centre of transmission shaft, the upper end of transmission gear with the meshing of main rack.
4. The emergency deceleration device for railway of claim 1, wherein: the cooling device comprises a cooling box which is symmetrically arranged in the left end wall of the central cavity in the front-back direction and is positioned above the motor, an outflow hole communicated with the outside is formed in the right side of the cooling box, an ejection cavity which is communicated with the outflow hole and has an opening facing the right is formed in the right side of the cooling box, an ejection spring is fixedly connected to the left end wall of the ejection cavity, an ejection block is fixedly connected to the right side of the ejection spring, a connecting rod is rotatably connected to the left side of the upper portion of the ejection block, a driven sliding block is rotatably connected to the left end of the connecting rod, and a sealing block which is positioned in the outflow hole and seals the ejection.
CN201911418719.6A 2019-12-31 2019-12-31 Special emergent decelerator of railway Active CN111071290B (en)

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CN111071290B CN111071290B (en) 2021-05-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114954560A (en) * 2022-04-22 2022-08-30 沈阳中铁安全设备有限责任公司 Lifting parking anti-slip device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135138B2 (en) * 1971-07-14 1975-09-18 Paul Vahle Kg, 4618 Kamen Trackside railway-vehicle-arresting beam-brake - with swivelling shanks engaged by spreader arms whose hinge operates under electrohydraulic thruster lever
SU1733310A2 (en) * 1990-01-23 1992-05-15 С. К. Цымбалюк Device for fixing the train
CN2688571Y (en) * 2004-03-22 2005-03-30 杨恩久 Short silde vehicle stopper
CN201151411Y (en) * 2008-01-16 2008-11-19 张全祥 Pneumatic moveable normal closed door type vehicle stopper
CN101704374A (en) * 2009-11-18 2010-05-12 靳慧民 Bottom lifting type U-shaped tram guard
CN101734261A (en) * 2010-01-08 2010-06-16 韩秀连 Mine shaft inclined roadway flat slope head normally closed type interlocking can stopper
RU2578642C1 (en) * 2015-01-30 2016-03-27 Открытое Акционерное Общество "Российские Железные Дороги" Unit for retention of rolling stock at station tracks

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135138B2 (en) * 1971-07-14 1975-09-18 Paul Vahle Kg, 4618 Kamen Trackside railway-vehicle-arresting beam-brake - with swivelling shanks engaged by spreader arms whose hinge operates under electrohydraulic thruster lever
SU1733310A2 (en) * 1990-01-23 1992-05-15 С. К. Цымбалюк Device for fixing the train
CN2688571Y (en) * 2004-03-22 2005-03-30 杨恩久 Short silde vehicle stopper
CN201151411Y (en) * 2008-01-16 2008-11-19 张全祥 Pneumatic moveable normal closed door type vehicle stopper
CN101704374A (en) * 2009-11-18 2010-05-12 靳慧民 Bottom lifting type U-shaped tram guard
CN101734261A (en) * 2010-01-08 2010-06-16 韩秀连 Mine shaft inclined roadway flat slope head normally closed type interlocking can stopper
RU2578642C1 (en) * 2015-01-30 2016-03-27 Открытое Акционерное Общество "Российские Железные Дороги" Unit for retention of rolling stock at station tracks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114954560A (en) * 2022-04-22 2022-08-30 沈阳中铁安全设备有限责任公司 Lifting parking anti-slip device
CN114954560B (en) * 2022-04-22 2024-04-12 沈阳中铁安全设备有限责任公司 Lifting parking anti-slip device

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