CN109131377B - Quick assembly rail power car - Google Patents
Quick assembly rail power car Download PDFInfo
- Publication number
- CN109131377B CN109131377B CN201810870069.8A CN201810870069A CN109131377B CN 109131377 B CN109131377 B CN 109131377B CN 201810870069 A CN201810870069 A CN 201810870069A CN 109131377 B CN109131377 B CN 109131377B
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- control handle
- wheel
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- driven
- controller
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- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000005286 illumination Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C3/00—Electric locomotives or railcars
- B61C3/02—Electric locomotives or railcars with electric accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a rapid assembled rail power vehicle which comprises a vehicle body, wherein the vehicle body comprises a power end, a driven end and a brake system, the power end is provided with a first control handle, the driven end is provided with a second control handle, the first control handle and the second control handle are connected with the vehicle body through a folding positioning mechanism, a seat part is arranged between the power end and the driven end, the seat part is respectively connected with the power end and the driven end through a rapid detachable mechanism, the power end, the seat part and the driven end are of a frame type structure, the bottom two ends of the power end and the driven end are respectively provided with a travelling wheel, and the power end is provided with a motor for driving the travelling wheel to travel and a controller for controlling the motor to work. The invention can realize quick disassembly and assembly, is convenient to carry, and simultaneously, the brake can realize synchronous brake, and has good braking effect.
Description
Technical Field
The invention relates to a rail power vehicle, in particular to a rapid assembly rail power vehicle.
Background
The total mileage of China railway operation reaches 12.4 kilometers, wherein the high-speed railway is 2.5 kilometers, a large amount of equipment is required to be transported during railway track maintenance, the construction site is far away from an import and export maintenance gate, the operation is carried by manpower, the operation is carried on the track, the maintenance is carried by manpower, the skylight period is only 3 hours or even only 45 minutes, how to carry the equipment to a target place for construction in a short time is a very painful matter, so that a rail power car which walks on the track is generally adopted to transport a large amount of maintenance equipment, the rail power car which walks on the track is searched in the current market, the weight of the rail power car is overweight, the operation is inconvenient, in the track measurement process, a large number of people are required to lift the operation track through the gate of the rail, the gate of the railway can be opened by about 1m, the existing power car is of an integral structure, the transportation is unfavorable, and meanwhile, the rail is often braked in the track travelling, but the prior art has a brake structure which is too simple, has an unsatisfactory brake structure and the brake effect; in addition, since the railway track is walked, the turning-around running cannot be realized, and in general, the prior art has the function of braking both the forward and backward movement, but the operability is inconvenient, and the speed and direction of the forward and backward movement are difficult to easily grasp.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the rapid assembled rail power vehicle, has lighter weight, can realize rapid disassembly and assembly, is convenient to carry, and simultaneously, the brake can realize synchronous braking, and has good braking effect.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a assemble track motor car fast, it includes the automobile body, the automobile body includes power end, driven end and braking system, the power end is equipped with first control handle, the driven end is equipped with the second control handle, first control handle and second control handle all are connected through folding positioning mechanism with the automobile body, be equipped with seat portion between power end and the driven end, seat portion respectively with power end and driven end all be connected through quick removable mechanism, power end, seat portion and driven end are frame-type structure, the bottom both ends of power end and driven end all are equipped with the walking wheel, the power end is equipped with the motor that is used for driving the walking wheel and is used for controlling the controller of motor work, the motor is connected with the controller electricity, braking system includes pump, brake pump down and oil circuit on the brake, first control handle and second control handle all are equipped with the brake pump down, the pump passes through the oil circuit connection with the brake pump down on the brake, the pump is connected with the brake pump down through the oil circuit down the brake, the pump is connected with the controller electricity down.
Preferably, the first control handle and the second control handle all are equipped with the handle pole setting, folding positioning mechanism include base, screw, spacing pin and spring, handle pole setting lower part passes through the screw rotation with the base and is connected, base and handle pole setting are passed through spacing pin and are alternateed fixed connection, the spring housing is on the spacing pin, the base both sides all are equipped with and are used for the gliding walking groove of spacing pin, the walking groove is arc structure, the walking groove both ends all are equipped with the round hole.
Preferably, the frame structure include two at least montants, be equipped with the wheel carrier that is used for placing the walking wheel between two montant both ends, the wheel carrier includes two backup pads, be equipped with the shaft between two backup pads, the walking wheel sets up on the shaft, the interval sets up a plurality of horizontal pole between the montant middle part.
Preferably, the controller is connected with a switching joint for switching connection between the first control handle and the second control handle, and the switching joint is electrically connected with the controller.
Preferably, at least one end of the car body is provided with a guard rail, and the guard rail is connected with the car body through a foldable positioning hinge.
Preferably, the controller is a brushless DC motor controller.
Preferably, the quick detachable mechanism comprises a wedge-shaped drag hook, the wedge-shaped drag hook is respectively arranged on a power end and a driven end, a plunger pin hole is formed in the drag hook, wedge-shaped grooves for placing the wedge-shaped drag hook are respectively formed in two ends of the seat part, a rotary plunger for fixing the position of the wedge-shaped drag hook is arranged on the upper portion of each wedge-shaped groove, and the rotary plunger is connected with the plunger pin hole in a penetrating mode.
Preferably, the vehicle body is provided with an illuminating lamp.
Preferably, the walking wheels arranged at the two ends of the bottom of the power end and the bottom of the driven end are connected through a rotating shaft, one side of each walking wheel is provided with a driven wheel, the driven wheels are arranged in the wheel frames, and the diameters of the driven wheels are smaller than those of the walking wheels.
Preferably, the seat part is provided with at least two seats arranged in opposite directions and a battery box provided with a battery, the battery is electrically connected with the controller, and the battery is a high-density power battery.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple structure and reasonable design, and the power end and the driven end which are arranged by the vehicle body are connected with the seat part through the quick detachable mechanism, so that the quick assembly and disassembly can be realized, and the transportation is convenient; the power end, the driven end and the seat part are of frame type structures, the weight of the vehicle body is reduced, the vehicle body is light, the structure is compact, and the transportation is convenient; simultaneously, the braking system that the automobile body set up, the pump is gone up through the brake that sets up on the oil circuit simultaneous control walking wheel under the brake that can adopt the brake, and the pump is connected with the controller electricity under the brake, and the controller is connected with the motor electricity, when can realize the brake, the function of motor outage for the braking effect is better.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a rapid-assembly rail vehicle of the present invention;
FIG. 2 is a schematic view of a bottom view of a quick assembly rail vehicle of the present invention;
FIG. 3 is a schematic view of another perspective view of a rapid-assembly rail vehicle of the present invention;
FIG. 4 is a schematic view of a folding positioning mechanism of a fast assembly rail vehicle according to the present invention;
FIG. 5 is a schematic cross-sectional view of a folding positioning mechanism of a fast assembly rail vehicle of the present invention;
FIG. 6 is a schematic view of a base structure of a folding positioning mechanism of a fast assembly rail vehicle of the present invention;
FIG. 7 is a schematic view of a quick release mechanism for a quick release rail vehicle of the present invention;
FIG. 8 is a schematic view of yet another construction of a quick release mechanism for a quick release rail powered vehicle in accordance with the present invention;
fig. 9 is a schematic view of the structure of a wheel frame of a quick detachable mechanism of a quick assembly rail vehicle according to the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description:
referring to fig. 1-2, this embodiment discloses a quick assembly rail power car, it includes automobile body 1, the automobile body includes power end 2, driven end 3 and braking system, power end 2 is equipped with first control handle 5, driven end 3 is equipped with second control handle 6, first control handle 5 and second control handle 6 all are connected through folding positioning mechanism with the automobile body for be convenient for carry a large amount of equipment to automobile body 1, be equipped with seat portion 4 between power end 2 and the driven end 3, seat portion 4 respectively with power end 2 and driven end 3 all connect through quick detachable mechanism 7, power end 2, seat portion and driven end 3 are frame-type structure, the bottom both ends of power end 2 and driven end 3 all are equipped with walking wheel 16, and the rail power car is to travel on the railway track, so the distance between the inboard walking wheel of automobile body 1 both ends 16 is less than the track width, and the distance between the inboard walking wheel 16 of both ends outside the walking wheel is greater than the track width, so can be convenient for implement in the railway track width 1.335 m at both ends 1.335 m, the distance between the walking wheel is 1.16 m 1.535. The power end 2 is provided with a motor 20 for driving the travelling wheels 16 to travel and a controller 18 for controlling the motor 20 to work, and the motor 20 is electrically connected with the controller 18.
In this implementation, the braking system includes pump 53, pump 23 and oil circuit 51 under the brake, first control handle 5 and second control handle 6 all are equipped with pump 53 under the brake, the walking wheel 16 of power end 2 and driven end 3 bottom all is equipped with pump 23 under the brake, pump 53 passes through oil circuit 51 with pump 23 under the brake and is connected, plays synchronous brake and brake steadily, and the walking wheel 16 that power end 2 and driven end 3 set up all is equipped with pump 23 under the brake, can make pump 23 under the brake of the other end when one of them one end pump 23 malfunctions can be used as reserve, carries out the brake, and pump 23 under the brake is connected with the controller 18 electricity, and the controller 18 is connected with motor 20 electricity, can let motor 20 direct brake outage, and the braking effect is better.
In the present embodiment, as preferable, the first control handle 5 and the second control handle 6 are consistent in function and structure and are respectively used for operating in opposite directions, the controller 18 is connected with a switching joint 19 for switching connection between the first control handle 5 and the second control handle 6, the switching joint 19 is electrically connected with a motor 20, and when the first control handle 5 is electrically connected with the switching joint 19, the first control handle 5 can be communicated with the controller 18 and the motor 20 so as to operate the travelling wheel 16 to travel; when the second control handle 6 is electrically connected with the adapter 19, the second control handle 6 can be communicated with the controller 18 and the motor 20, so that the direction of the traveling wheel 16 operated by the traveling wheel 16 and the direction of the traveling wheel 16 operated by the first control handle 5 are reversed, and a user can conveniently control the speed, the braking state, the direction and the like in different directions by switching the connection between the first control handle 5 and the second control handle 6 and the motor 20.
In this embodiment, the seat 4 is preferably provided with a seat 11 and a battery box 12 with batteries, where the seats 11 and the battery boxes are disposed in opposite directions, the batteries are high-density power batteries, and the batteries are electrically connected with the controller 18 to supply power to the controller, the motor and other electric devices on the vehicle body, so that the duration time is long and the traveling time is long, and the seats 11 disposed in opposite directions can facilitate the user to operate the first control handle 5 and the second control handle 6 disposed in the power end 2 and the driven end 3 respectively, and meanwhile, the seats 11 are connected with the vehicle body 1 through bolts, so that the placing space can be increased by detaching the seats, and meanwhile, the battery box 12 can also be used as a storage box for placing articles.
In this embodiment, referring to fig. 3 and 9, the power end 2, the seat portion 4 and the driven end 3 are all in a frame structure, the frame structure includes at least two vertical rods 21, a wheel frame 9 for placing the travelling wheels 16 is disposed between two ends of the two vertical rods 21, the wheel frame 9 includes two support plates 90, a wheel axle 91 is disposed between the two support plates 16, the travelling wheels 16 are disposed on the wheel axle 91, a plurality of cross rods 22 are disposed between the middle portions of the vertical rods 21 at intervals, the cross rods 22 enable the volume of the vehicle body 1 to be reduced, and play a supporting role, the wheel frame supports the travelling wheels 16 and the vehicle body 1, and the frame structure at the lower portion of the seat portion 4 can reduce the weight of the vehicle body 1, and can ensure the bearing capacity of the vehicle body 1, the upper portion of the vehicle body 1 can be provided with a antiskid plate 10 to increase safety, meanwhile, preferably, the travelling wheels 16 disposed at two ends of the bottom of the power end 2 and the driven end 3 are connected through a rotating shaft 17, one side of the travelling wheels 16 is provided with a driven wheel 14, the driven wheel 14 is disposed in the wheel frame, and rotates synchronously with the travelling wheels 16, the travelling wheels 16 are driven wheel 16, and the diameter of the travelling wheel is smaller than the rotating shaft 17, and the driven wheel 14 is driven by the driven wheel 16 and the rotating shaft is driven by the rotating shaft 17, and the driven wheel 16 and has a stable driving stability. The frame structure reduces the weight of the vehicle body 1, the total weight of the rail power vehicle can be less than 60kg, and the rail power vehicle is convenient for carrying and transporting equipment.
In this embodiment, as a preference, referring to fig. 4-6, the first control handle 5 and the second control handle 6 are both provided with a handle upright post 61, in this embodiment, the folding positioning mechanism 52 includes a base 62, a screw 63, a limit pin 65 and a spring 68, the base 62 is fixedly connected to the vehicle body 1, the lower part of the handle upright post 61 is rotationally connected to the base 62 through the screw 63, the base 62 and the handle upright post 61 are fixedly connected through the limit pin 65 in a penetrating way, the spring 68 is sleeved on the limit pin 65, so that the limit pin 65 can be pressed down and sprung up, both sides of the base 62 are both provided with a running groove 64 for sliding the limit pin 65, the running groove 64 is in an arc structure, both ends of the running groove 64 are provided with round holes 66, the limit pin 65 is provided with a connecting rod 67 matched with the running groove 64, and the running groove 64 can only press down the limit pin 65 through the connecting rod 67, the connecting rod 67 can slide in the running groove 64, thereby realizing the rotation of the control handle, and the folding function can be folded onto the vehicle body 1, so that the carrying equipment is convenient to carry onto the vehicle body 1; when the limit pin 65 is loosened, the limit pin 65 is pushed to the outside under the action of the spring 68, and when the limit pin 65 slides to the round hole 66, the round hole 66 is matched and fixed with the shaft shoulder of the limit pin 65, so that the control handle is fixed on two stations, and the purpose of folding and standing up is achieved.
In this embodiment, as a preferred option, at least one end of the vehicle body 1 is provided with a guard rail 8, the guard rail 8 is provided with a transverse plate 80, the guard rail 8 is connected with the vehicle body 1 through a foldable positioning hinge 81, the guard rail 8 can increase safety, and meanwhile, the guard rail 8 is connected with the vehicle body 1 through the foldable positioning hinge 81, and can be folded onto the vehicle body, so that the vehicle can be conveniently transported.
In this embodiment, the controller 18 is preferably a dc brushless motor controller, and is driven by dc, so that the energy efficiency conversion rate is high, and meanwhile, the motor 20 may be an electrodeless motor, so that the stepless speed change can be achieved.
In this embodiment, as a preferred example, referring to fig. 7-8, the quick detachable mechanism 7 includes a wedge-shaped drag hook 71, the wedge-shaped drag hook 71 is respectively disposed at one side of the power end 2 and the driven end 3 near the seat portion 4, a plunger pin hole 70 is disposed on the wedge-shaped drag hook 71, wedge-shaped grooves 73 for placing the wedge-shaped drag hook 71 are respectively disposed at two ends of the seat portion 4, a rotating plunger 72 for fixing the position of the wedge-shaped drag hook 71 is disposed at the upper portion of the wedge-shaped groove 73, the rotating plunger 72 is connected with the plunger pin hole 70 in a penetrating manner, so that the releasing can be prevented, the rotating plunger 72 can be inserted into the wedge-shaped groove 73 through a through hole disposed in the seat portion 4, the position of the plunger pin hole 70 can be fixed, and can be fixed at the seat portion 4 in a spiral manner, when the rotating plunger 72 is rotated and removed, the wedge-shaped drag hook 71 can be quickly separated from the wedge-shaped groove 73, and the cooperation between the wedge-shaped drag hook 71 and the wedge-shaped groove 73 is similar to the die drawing principle, so that the quick detachable can be conveniently assembled and disassembled; meanwhile, the wedge-shaped hooks 71 and the inclined planes of the wedge-shaped grooves 73 are matched, so that the automobile body 1 can achieve a tight matching effect under the condition of being stressed, and the connection can be fastened more.
In this embodiment, preferably, the vehicle body 1 is provided with an illumination lamp 13, and the illumination lamps 13 are respectively arranged at the power end 2 and the driven end 3, and the illumination lamp 13 can be used for illumination during night work, and the illumination lamp 13 can be electrically connected with a battery.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and modifications in detail will readily occur to those skilled in the art based on the teachings herein without departing from the spirit and scope of the invention.
Claims (5)
1. The quick assembly rail power vehicle is characterized by comprising a vehicle body, wherein the vehicle body comprises a power end, a driven end and a brake system, the power end is provided with a first control handle, the driven end is provided with a second control handle, the first control handle and the second control handle are connected with the vehicle body through folding positioning mechanisms, a seat part is arranged between the power end and the driven end, the seat part is respectively connected with the power end and the driven end through quick assembly and disassembly mechanisms, the power end, the seat part and the driven end are of a frame type structure, travelling wheels are arranged at the bottom ends of the power end and the driven end, the power end is provided with a motor for driving the travelling wheels and a controller for controlling the motor to work, the motor is electrically connected with the controller, the brake system comprises an upper brake pump, a lower brake pump and an oil way, the first control handle and the second control handle are both provided with an upper brake pump, the upper brake pump is connected with the lower brake pump through the oil way, and the lower brake pump is electrically connected with the controller; the folding positioning mechanism comprises a base, screws, limiting pins and springs, wherein the lower parts of the handle vertical rods are connected with the base in a rotating mode through the screws, the base and the handle vertical rods are fixedly connected through the limiting pins in a penetrating mode, the springs are sleeved on the limiting pins, walking grooves used for sliding of the limiting pins are formed in two sides of the base, each of the walking grooves is of an arc-shaped structure, round holes are formed in two ends of each of the walking grooves, the frame type structure comprises at least two vertical rods, a wheel frame used for placing walking wheels is arranged between two ends of each of the two vertical rods, the wheel frame comprises two supporting plates, a wheel shaft is arranged between the two supporting plates, the walking wheels are arranged on the wheel shaft, a plurality of cross rods are arranged between the middle parts of the vertical rods at intervals, and the controller is connected with a switching joint used for switching connection between the first control handle and the second control handle and is electrically connected with the controller; the rapid detachable mechanism comprises a wedge-shaped drag hook, wherein the wedge-shaped drag hook is respectively arranged on a power end and a driven end, a plunger pin hole is formed in the drag hook, wedge-shaped grooves for placing the wedge-shaped drag hook are respectively formed in two ends of the seat part, a rotary plunger for fixing the position of the wedge-shaped drag hook is arranged at the upper part of each wedge-shaped groove, and the rotary plunger is connected with the plunger pin hole in a penetrating mode; the power end and the travelling wheel arranged at the two ends of the bottom of the driven end are connected through a rotating shaft, a driven wheel is arranged on one side of the travelling wheel, the driven wheel is arranged in the wheel carrier, and the diameter of the driven wheel is smaller than that of the travelling wheel.
2. The rapid assembled track power vehicle of claim 1, wherein at least one end of the vehicle body is provided with a guard rail, and the guard rail is connected with the vehicle body through a foldable positioning hinge.
3. The rapid-assembly rail vehicle of claim 1, wherein the controller is a dc brushless motor controller.
4. The rapid-assembly rail vehicle of claim 1, wherein the vehicle body is provided with an illumination lamp.
5. The rapid assembled track power vehicle of claim 1, wherein the seat portion is provided with a seat and a battery box with batteries, the seat and the battery box are arranged in opposite directions, the batteries are electrically connected with the controller, and the batteries are high-density power batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870069.8A CN109131377B (en) | 2018-08-02 | 2018-08-02 | Quick assembly rail power car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810870069.8A CN109131377B (en) | 2018-08-02 | 2018-08-02 | Quick assembly rail power car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109131377A CN109131377A (en) | 2019-01-04 |
| CN109131377B true CN109131377B (en) | 2023-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810870069.8A Active CN109131377B (en) | 2018-08-02 | 2018-08-02 | Quick assembly rail power car |
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| Country | Link |
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| CN (1) | CN109131377B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267885B (en) * | 2020-03-26 | 2024-02-02 | 上海库赞轨道交通科技有限公司 | Mobile device, continuous-hanging mobile integrated train unit and communication control method thereof |
| CN111746569B (en) * | 2020-07-08 | 2022-08-26 | 温州职业技术学院 | Foldable rail transit quick-response rescue vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1177896A (en) * | 1968-12-09 | 1970-01-14 | John Elbert Scroggs | Collapsible Rail Vehicle |
| KR101360958B1 (en) * | 2013-08-12 | 2014-02-24 | (주)청운구조안전연구원 | A folding type worktable carriage for railroad tunnel |
| CN206476422U (en) * | 2016-11-16 | 2017-09-08 | 国家电网公司 | Foldable track weight shifting apparatus |
| CN206579634U (en) * | 2017-03-22 | 2017-10-24 | 长沙精铸电力技术有限公司 | Track traffic automatic tour inspection system |
| CN207360317U (en) * | 2017-11-02 | 2018-05-15 | 固安信通信号技术股份有限公司 | Electricity business portable railway test carriage |
-
2018
- 2018-08-02 CN CN201810870069.8A patent/CN109131377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1177896A (en) * | 1968-12-09 | 1970-01-14 | John Elbert Scroggs | Collapsible Rail Vehicle |
| KR101360958B1 (en) * | 2013-08-12 | 2014-02-24 | (주)청운구조안전연구원 | A folding type worktable carriage for railroad tunnel |
| CN206476422U (en) * | 2016-11-16 | 2017-09-08 | 国家电网公司 | Foldable track weight shifting apparatus |
| CN206579634U (en) * | 2017-03-22 | 2017-10-24 | 长沙精铸电力技术有限公司 | Track traffic automatic tour inspection system |
| CN207360317U (en) * | 2017-11-02 | 2018-05-15 | 固安信通信号技术股份有限公司 | Electricity business portable railway test carriage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109131377A (en) | 2019-01-04 |
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Effective date of registration: 20240321 Address after: Room 805, 8th Floor, No. 39 Sicheng Road, Tianhe District, Guangzhou City, Guangdong Province, 510000 (for office purposes only) (not intended for use as a factory building) Patentee after: GUANGZHOU SOUTH HIGH-SPEED RAILWAY SURVEYING TECHNOLOGY CO.,LTD. Country or region after: Zhong Guo Address before: Southern Surveying and Mapping Geographic Information Industrial Park, No. 39 Sicheng Road, Tianhe Smart City, Tianhe District, Guangzhou City, Guangdong Province, 510663 Patentee before: SOUTH SURVEYING & MAPPING TECHNOLOGY CO.,LTD. Country or region before: Zhong Guo |