CN111810001A - Recovery device for multifunctional escape system of locomotive - Google Patents
Recovery device for multifunctional escape system of locomotive Download PDFInfo
- Publication number
- CN111810001A CN111810001A CN202010660943.2A CN202010660943A CN111810001A CN 111810001 A CN111810001 A CN 111810001A CN 202010660943 A CN202010660943 A CN 202010660943A CN 111810001 A CN111810001 A CN 111810001A
- Authority
- CN
- China
- Prior art keywords
- clutch
- worm wheel
- bottom plate
- lead screw
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000013016 damping Methods 0.000 claims description 24
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/02—Door arrangements specially adapted for rail vehicles for carriages
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
Abstract
The invention belongs to the technical field of escape systems, and particularly relates to a recovery device for a multifunctional escape system of a locomotive.
Description
Technical Field
The invention relates to the technical field of escape systems, in particular to a recovery device for a multifunctional escape system of a locomotive.
Background
At present, various downward-turning escape doors, lateral-moving escape doors and emergency evacuation doors capable of being turned downward and opened laterally exist in escape systems in the market. The existing emergency evacuation door is slow in recovery speed in the recovery process, and wastes time and labor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the recovery device for the multifunctional escape system of the locomotive is higher in speed and saves a large amount of recovery time by using the electric tool for recovery.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a multi-functional recovery unit for system of fleing of locomotive, is including fixing on the door frame assembly recovery bottom plate, is equipped with two gyro wheel parts, reduction gears and buffer gear on the recovery bottom plate admittedly, connects through elastic coupling between the input shaft between two gyro wheel parts, reduction gears and the buffer gear, is equipped with reduction gears and buffer gear between two gyro wheel parts.
Further, the roller part comprises a bottom plate, a roller shaft and a roller baffle plate, a plurality of nut columns are arranged on the inward end face of the bottom plate, the roller baffle plate is fixed on the nut columns of the bottom plate through bolts, the roller shaft penetrates through the bottom plate and the roller baffle plate, a woven belt is arranged on the roller shaft between the bottom plate and the roller baffle plate in a winding mode, a roller support is arranged on the inward side edge of the roller baffle plate, and the roller support and the bottom plate fix the roller part on the recycling bottom plate.
Further, the buffer mechanism comprises a shell, a lead screw nut and a damping rod, wherein the lead screw is arranged in the shell in a penetrating manner, the lead screw is provided with the lead screw nut matched with the lead screw, the lead screw nut is sleeved with a lead screw guide frame, and the damping rod is arranged between the shell and the lead screw guide frame; an inner rib is arranged on the inner wall of the upper end of the shell, and a bayonet arranged on the screw guide frame is matched with the inner rib, so that the screw nut moves in the horizontal direction.
Furthermore, the speed reducing mechanism comprises a speed reducer shell, a worm wheel, a worm wheel shaft and a clutch, the worm wheel shaft penetrates through the speed reducer shell, the worm wheel and the clutch are sequentially sleeved on the worm wheel shaft from left to right, the clutch and the worm wheel shaft are installed in a relative sliding mode and do not rotate relatively, and a worm wheel transition sleeve is arranged between the worm wheel and the worm wheel shaft; the worm wheel is meshed with the worm, the clutch is matched with a clutch shifting fork arranged in the speed reducer shell, and a shifting fork rod synchronously rotating with the clutch shifting fork is arranged at the lower part of the clutch shifting fork.
Furthermore, the end part of a piston rod of the damping rod is in lap joint with the lead screw guide frame, the end part of a cylinder body of the damping rod is fixedly arranged on the shell, and the shell is also provided with a damping support for supporting the damping rod.
Furthermore, a clutch tension spring is arranged between the clutch shifting fork and the speed reducer shell.
Furthermore, the outer circumferential surface of the protrusion of the worm wheel transition sleeve is provided with meshing teeth, the inner circumferential surface of the groove of the clutch is provided with the meshing teeth, the clutch moves leftwards, and the meshing teeth of the worm wheel transition sleeve and the meshing teeth of the clutch are meshed with each other to transmit torque.
Furthermore, a linear guide rail sliding block pair is also arranged on the recovery bottom plate and is arranged in front of the lower ends of the two roller parts.
The invention has the beneficial effects that: the recovery system is additionally provided with the worm gear reducer with the clutch, and the operation interface is provided with the electric tool interface, so that the electric tool can be used for recovery during recovery, the speed is higher, and a large amount of recovery time is saved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing the structure of a roller member according to the present invention;
FIG. 3 is a schematic view of the structure of the damper mechanism of the present invention;
FIG. 4 is a schematic structural view of a speed reducing mechanism of the present invention;
FIG. 5 is a schematic view of the present invention after removing the recycling floor.
In the figure: 46. the automatic transmission mechanism comprises a recovery base plate, 47 a roller component, 48 a speed reducing mechanism, 49 a buffer mechanism, 50 an elastic coupling, 51 a linear guide rail sliding block pair, 52 a base plate, 53 a roller baffle, 54 a roller bracket, 55 a roller shaft, 56 a woven belt, 57 a bearing, 58 a speed reducer shell, 59 a worm wheel, 60 a worm, 61 a worm wheel shaft, 62 a worm wheel transition sleeve, 63 a clutch, 64 a clutch fork, 65 a bearing, 66 a fork rod, 67 a clutch tension spring, 68 a shell, 69 a lead screw, 70 a lead screw nut, 71 a damping rod and 123 a lead screw guide frame.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The recycling device for the multifunctional escape system of the locomotive as shown in fig. 1 to 5 comprises a recycling bottom plate 46 fixed on a door frame assembly, two roller parts 47, a speed reducing mechanism 48 and a buffering mechanism 49 are fixedly arranged on the recycling bottom plate 46, input shafts among the two roller parts 47, the speed reducing mechanism 48 and the buffering mechanism 49 are connected through an elastic coupling 50, and the speed reducing mechanism 48 and the buffering mechanism 49 are arranged between the two roller parts 47.
The roller part 47 comprises a bottom plate 52, a roller shaft 55 and a roller baffle 53, a plurality of nut posts are arranged on the inward end face of the bottom plate 52, the roller baffle 53 is fixed on the nut posts of the bottom plate 52 through bolts, the roller shaft 55 penetrates between the bottom plate 52 and the roller baffle 53, a woven belt 56 is wound on the roller shaft 55 between the bottom plate 52 and the roller baffle 53, a roller bracket 54 is arranged on the inward side edge of the roller baffle 53, and the roller part 47 is fixed on the recovery bottom plate 46 by the roller bracket 54 and the bottom plate 52.
The buffer mechanism 49 comprises a shell 68, a lead screw 69, a lead screw nut 70 and a damping rod 71, the lead screw 69 is arranged in the shell 68 in a penetrating manner, the lead screw 69 is provided with the lead screw nut 70 matched with the lead screw 69, the lead screw nut 70 is sleeved with a lead screw guide frame 123, the damping rod 71 is arranged between the shell 68 and the lead screw guide frame 123, the damping rod 71 is similar to a hydraulic damper of a hydraulic cylinder structure, the end part of the damping rod 71 is fixed at the end part of the shell 68, the end part of a piston rod is overlapped with the lead screw nut 70, the lead screw is rapidly rotated to drive the lead screw nut 70 to move, a piston in the damping rod 71 is compressed, and the damping action of the damping rod 71 on the piston causes the rotating speed of the lead screw 69 to be reduced; an inner rib is arranged on the inner wall of the upper end of the shell 68, and a bayonet arranged on the screw guide frame 123 is matched with the inner rib, so that the screw nut 70 moves in the horizontal direction.
The speed reducing mechanism 48 comprises a speed reducer shell 58, a worm wheel 59, a worm 60, a worm wheel shaft 61 and a clutch 63, wherein the worm wheel shaft 61 penetrates through the speed reducer shell 58, the worm wheel 59 and the worm wheel shaft 61 can rotate relatively, the worm wheel 59 and the clutch 63 are sequentially sleeved on the worm wheel shaft 61 from left to right, the clutch 63 and the worm wheel shaft 61 are installed in a relative sliding and non-relative rotation mode, and a worm wheel transition sleeve 62 is arranged between the worm wheel 59 and the worm wheel shaft 61;
the worm 60 is hinged to the middle of the rear end of the speed reducer housing 58 through a bearing in the vertical direction, a hexagonal cylinder is arranged at the end head of the lower part of the worm 60 and serves as a power input end of the worm 60, the worm wheel 59 is meshed with the worm 60, the clutch shifting fork 64 is hinged to the rear part of the speed reducer housing 58 in the vertical direction, the right side of the worm 60 is matched with the clutch 63 and the clutch shifting fork 64 installed in the speed reducer housing 58, a shifting fork rod 66 which rotates synchronously with the clutch shifting fork 64 is arranged at the lower part of the clutch shifting fork 64, and the clutch 63 is driven to move by rotating the shifting fork rod 66 through hands, so that the clutch 63 is meshed with or separated from the worm; .
The end part of the piston rod of the damping rod 71 is overlapped with the screw rod guide frame 123, the end part of the cylinder body of the damping rod 71 is fixedly arranged on the shell 68, and the shell 68 is also provided with a damping support for supporting the damping rod 71.
Be equipped with clutch extension spring 67 between clutch shift fork 64 and the speed reducer casing 58, clutch extension spring 67 one end is connected on speed reducer casing 58, and the other end is connected on clutch shift fork 64, through the dead point design, clutch extension spring 67 has the pulling force of two directions to clutch shift fork 64 for clutch shift fork 64 has two extreme positions about to exist.
The outer circumferential surface of the bulge of the worm wheel transition sleeve 62 is provided with meshing teeth, the inner circumferential surface of the groove of the clutch 63 is provided with the meshing teeth, the meshing teeth are rectangular meshing teeth, the clutch 63 moves to the left, the meshing teeth of the worm wheel transition sleeve 62 and the meshing teeth of the clutch 63 are meshed with each other to transmit torque, and after the clutch 63 moves to the left, the meshing teeth are meshed with the meshing teeth at the right end of the worm wheel transition sleeve 62, so that the worm wheel 59 rotates to drive the worm wheel shaft 61 to rotate; when the clutch 63 moves rightwards, the clutch is disengaged from the meshing teeth at the right end of the worm wheel transition sleeve 62.
The recovery base plate 46 is further provided with a linear guide slider pair 51, and the linear guide slider pair 51 is provided in front of the lower ends of the two roller members 47.
The working principle of the recovery device is as follows:
when the door leaf assembly is recovered, an operator pulls the shifting fork rod 66 downwards by hands to drive the clutch 63 to move, the clutch 63 moves leftwards, meshing teeth on the inner circumferential surface of the groove of the clutch 63 are meshed with meshing teeth at the right end of the worm wheel transition sleeve 62, so that the worm wheel 59 rotates to drive the worm wheel shaft 61 to rotate, the worm wheel shaft 61 transmits power to the speed reducing mechanism 48 and the roller part 47 at the right side through the elastic couplers 50 at the two sides respectively, the speed reducing mechanism 48 transmits the power to the roller part 47 at the left side, the roller shafts 55 in the two roller parts 47 are driven to rotate simultaneously, the roller shafts 55 roll the woven belt 56, an upward pulling force is applied to the door leaf assembly, the door leaf assembly is turned upwards, and finally the door leaf assembly is automatically locked;
when the door leaf assembly is opened, an operator pushes the door leaf assembly outwards, manually dials the shifting fork rod 66, the clutch 63 moves rightwards and is separated from the rectangular teeth at the right end of the worm gear transition sleeve 62, the woven belt 56 on the roller shaft 55 is loosened, buffering is performed through the buffer mechanism 49 in the opening process, the rotating speed of the lead screw 69 is slowed, and the lead screw 69, the roller shaft 55 and the worm gear shaft 61 are connected through the communicating coupler 50, so that the opening speed of the door leaf assembly is slowed, the impact force during opening is reduced, the buffer effect is achieved, and the stability during opening is guaranteed.
While particular embodiments of the present invention have been described in the foregoing specification, various modifications and alterations to the previously described embodiments will become apparent to those skilled in the art from this description without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a multi-functional recovery unit for system of fleing of locomotive, is including fixing recovery bottom plate (46) on the door frame assembly, its characterized in that: the recycling bottom plate (46) is fixedly provided with two roller parts (47), a speed reducing mechanism (48) and a buffer mechanism (49), input shafts among the two roller parts (47), the speed reducing mechanism (48) and the buffer mechanism (49) are connected through an elastic coupling (50), and the speed reducing mechanism (48) and the buffer mechanism (49) are arranged between the two roller parts (47).
2. The recycling device for the multifunctional escape system of locomotives according to claim 1, wherein: roller part (47) include bottom plate (52), roller shaft (55) and gyro wheel baffle (53), be equipped with a plurality of nut posts on the terminal surface inwards of bottom plate (52), gyro wheel baffle (53) pass through the bolt fastening on the nut post of bottom plate (52), wear to be equipped with roller shaft (55) between bottom plate (52) and gyro wheel baffle (53), roller shaft (55) between bottom plate (52) and gyro wheel baffle (53) are rolled up and are equipped with braided strap (56), gyro wheel baffle (53) are equipped with gyro wheel support (54) on the side inwards, gyro wheel support (54) and bottom plate (52) are fixed roller part (47) on retrieving bottom plate (46).
3. The recycling device for the multifunctional escape system of locomotives according to claim 1, wherein: the buffer mechanism (49) comprises a shell (68), a lead screw (69), a lead screw nut (70) and a damping rod (71), wherein the lead screw (69) penetrates through the shell (68), the lead screw nut (70) matched with the lead screw (69) is arranged on the lead screw (69), a lead screw guide frame (123) is sleeved on the lead screw nut (70), and the damping rod (71) is arranged between the shell (68) and the lead screw guide frame (123); an inner rib is arranged on the inner wall of the upper end of the shell (68), and a bayonet arranged on the screw guide frame (123) is matched with the inner rib, so that the screw nut (70) moves in the horizontal direction.
4. The recycling device for the multifunctional escape system of locomotives according to claim 1, wherein: the speed reducing mechanism (48) comprises a speed reducer shell (58), a worm wheel (59), a worm (60), a worm wheel shaft (61) and a clutch (63), the worm wheel shaft (61) penetrates through the speed reducer shell (58), the worm wheel (59) and the clutch (63) are sequentially sleeved on the worm wheel shaft (61) from left to right, the clutch (63) and the worm wheel shaft (61) are installed in a relative sliding and non-relative rotating mode, and a worm wheel transition sleeve (62) is arranged between the worm wheel (59) and the worm wheel shaft (61);
the worm wheel (59) is meshed with the worm (60), the clutch (63) is matched with a clutch shifting fork (64) arranged in the speed reducer shell (58), and a shifting fork rod (66) rotating synchronously with the clutch shifting fork (64) is arranged at the lower part of the clutch shifting fork (64).
5. A recycling device for a multifunctional escape system of a locomotive according to claim 3, wherein: the end part of a piston rod of the damping rod (71) is overlapped with the screw rod guide frame (123), the end part of a cylinder body of the damping rod (71) is fixedly arranged on the shell (68), and the shell (68) is also provided with a damping support for supporting the damping rod (71).
6. The recycling device for the multifunctional escape system of locomotives according to claim 4, wherein: and a clutch tension spring (67) is arranged between the clutch shifting fork (64) and the speed reducer shell (58).
7. The recycling device for the multifunctional escape system of locomotives according to claim 4, wherein: the outer circumferential surface of the bulge of the worm wheel transition sleeve (62) is provided with meshing teeth, the inner circumferential surface of the groove of the clutch (63) is provided with the meshing teeth, the clutch (63) moves to the left, and the meshing teeth of the worm wheel transition sleeve (62) and the meshing teeth of the clutch (63) are meshed with each other to transmit torque.
8. The recycling device for the multifunctional escape system of locomotives according to claim 1, wherein: the recovery bottom plate (46) is also provided with a linear guide rail sliding block pair (51), and the linear guide rail sliding block pair (51) is arranged in front of the lower ends of the two roller parts (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660943.2A CN111810001B (en) | 2020-07-10 | 2020-07-10 | Recovery device for locomotive multifunctional escape system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660943.2A CN111810001B (en) | 2020-07-10 | 2020-07-10 | Recovery device for locomotive multifunctional escape system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111810001A true CN111810001A (en) | 2020-10-23 |
| CN111810001B CN111810001B (en) | 2024-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010660943.2A Active CN111810001B (en) | 2020-07-10 | 2020-07-10 | Recovery device for locomotive multifunctional escape system |
Country Status (1)
| Country | Link |
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| CN (1) | CN111810001B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387691A (en) * | 2022-10-25 | 2022-11-25 | 今创集团股份有限公司 | Recovery device for escape system of locomotive |
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|---|---|---|---|---|
| CN101062686A (en) * | 2006-04-28 | 2007-10-31 | 常州长青埃潍交通设备有限公司 | Underground locomotive escape door device |
| US20120023824A1 (en) * | 2010-07-29 | 2012-02-02 | Rubbermaid Commercial Products, Llc | Automatic door opener |
| CN203198967U (en) * | 2013-04-27 | 2013-09-18 | 常州长青交通科技股份有限公司 | Subway locomotive ramp type urgent evacuation door transmission mechanism |
| CN203500408U (en) * | 2013-09-26 | 2014-03-26 | 北京无线电测量研究所 | Ball screw with dampers |
| CN203961577U (en) * | 2014-04-17 | 2014-11-26 | 林会明 | A kind of automatic door opening mechanism of meeting an urgent need |
| FR3012507A1 (en) * | 2013-10-29 | 2015-05-01 | G2G | ELECTROMECHANICAL DEVICE FOR CONTROLLING OPENINGS |
| US20170292311A1 (en) * | 2016-04-07 | 2017-10-12 | Magna Closures Inc. | Power swing door actuator with integrated door check mechanism |
| CN107386860A (en) * | 2017-09-20 | 2017-11-24 | 南京康尼机电股份有限公司 | A kind of inner swing door drive device |
| CN108454643A (en) * | 2018-05-30 | 2018-08-28 | 常州长青交通科技股份有限公司 | The speed reducing recovery device of automatic Pilot railcar emergency evacuation equipment |
| CN108643730A (en) * | 2018-05-30 | 2018-10-12 | 常州长青交通科技股份有限公司 | The emergency evacuation equipment of automatic Pilot railcar |
| CN212296046U (en) * | 2020-07-10 | 2021-01-05 | 今创集团股份有限公司 | Recovery device for multifunctional escape system of locomotive |
-
2020
- 2020-07-10 CN CN202010660943.2A patent/CN111810001B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062686A (en) * | 2006-04-28 | 2007-10-31 | 常州长青埃潍交通设备有限公司 | Underground locomotive escape door device |
| US20120023824A1 (en) * | 2010-07-29 | 2012-02-02 | Rubbermaid Commercial Products, Llc | Automatic door opener |
| CN203198967U (en) * | 2013-04-27 | 2013-09-18 | 常州长青交通科技股份有限公司 | Subway locomotive ramp type urgent evacuation door transmission mechanism |
| CN203500408U (en) * | 2013-09-26 | 2014-03-26 | 北京无线电测量研究所 | Ball screw with dampers |
| FR3012507A1 (en) * | 2013-10-29 | 2015-05-01 | G2G | ELECTROMECHANICAL DEVICE FOR CONTROLLING OPENINGS |
| CN203961577U (en) * | 2014-04-17 | 2014-11-26 | 林会明 | A kind of automatic door opening mechanism of meeting an urgent need |
| US20170292311A1 (en) * | 2016-04-07 | 2017-10-12 | Magna Closures Inc. | Power swing door actuator with integrated door check mechanism |
| CN107386860A (en) * | 2017-09-20 | 2017-11-24 | 南京康尼机电股份有限公司 | A kind of inner swing door drive device |
| CN108454643A (en) * | 2018-05-30 | 2018-08-28 | 常州长青交通科技股份有限公司 | The speed reducing recovery device of automatic Pilot railcar emergency evacuation equipment |
| CN108643730A (en) * | 2018-05-30 | 2018-10-12 | 常州长青交通科技股份有限公司 | The emergency evacuation equipment of automatic Pilot railcar |
| CN212296046U (en) * | 2020-07-10 | 2021-01-05 | 今创集团股份有限公司 | Recovery device for multifunctional escape system of locomotive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387691A (en) * | 2022-10-25 | 2022-11-25 | 今创集团股份有限公司 | Recovery device for escape system of locomotive |
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| Publication number | Publication date |
|---|---|
| CN111810001B (en) | 2024-02-09 |
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