CN219451807U - Middle unlocking device of train electric lock - Google Patents
Middle unlocking device of train electric lock Download PDFInfo
- Publication number
- CN219451807U CN219451807U CN202320349781.XU CN202320349781U CN219451807U CN 219451807 U CN219451807 U CN 219451807U CN 202320349781 U CN202320349781 U CN 202320349781U CN 219451807 U CN219451807 U CN 219451807U
- Authority
- CN
- China
- Prior art keywords
- wire
- wire drawing
- drawing disc
- unlocking
- disc
- 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.)
- Active
Links
- 238000005491 wire drawing Methods 0.000 claims abstract description 158
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 230000007306 turnover Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The utility model discloses an intermediate unlocking device of an electric lock of a train, which comprises an inner operation wire drawing disc, an intermediate wire drawing disc, an outer operation wire drawing disc, an intermediate unlocking mounting plate, a wire drawing disc connecting plate and an electromagnet, wherein the intermediate unlocking mounting plate is fixedly connected with the wire drawing disc connecting plate through screws and connecting shafts, the connecting shafts sequentially penetrate through the inner operation wire drawing disc, the intermediate wire drawing disc and the outer operation wire drawing disc, the electromagnet penetrates through the intermediate unlocking mounting plate to be fixedly connected, and a lock tongue of the electromagnet can enter and exit in a groove of the inner operation wire drawing disc. The intermediate unlocking device has the functions of labor-saving unlocking, resetting and operation protection, and is an important part for realizing the electric locking function of the door system. The device has the functions of manual unlocking and automatic resetting and operation protection when the traditional train door locking mechanism is operated at high speed, and is safe, reliable, simple in structure, ingenious in conception and convenient to install.
Description
Technical Field
The utility model relates to an intermediate unlocking device of an electric lock of a train, and particularly belongs to the technical field of rail transit trains.
Background
When the existing electric lock of the train is locked, the motor of the electric lock is connected with the pinion to drive the deflector rod on the large gear disc to compress the lock fork, and relatively large friction force is generated when the lock fork is compressed, so that when the electric lock is manually unlocked by internal and external operations, relatively large unlocking force is needed to unlock the electric lock. Moreover, the electric lock is simultaneously connected with the manual unlocking of the inner operation and the outer operation of the middle unlocking mechanism of the existing train, when the inner operation unlocking steel wire rope acts, the outer operation unlocking steel wire rope acts along with the inner operation unlocking steel wire rope, and the inner operation unlocking cannot realize the power-on isolation function. Meanwhile, the existing internal and external operation cannot ensure that the door can be opened easily and smoothly by manually unlocking the internal and external operation under the conditions of power failure and gas failure of a train. When the existing train is powered on and operates, manual unlocking during internal operation cannot ensure manual misoperation, and safety of the train during operation is ensured. Therefore, labor saving needs to be developed, manual unlocking can be ensured under the condition of no effort during manual unlocking, the operation experience of people is improved, quick and easy unlocking can be ensured under the emergency condition, and the safety performance of a train is improved; the developed intermediate unlocking device can ensure that the inner and outer operation steel wire ropes are not interfered when unlocked, and the outer operation steel wire ropes are kept static when the inner operation steel wire ropes are unlocked; when the outer operating wire rope is unlocked, the inner operating wire rope remains stationary. The middle unlocking device can monitor the inner operation and the outer operation unlocking in real time, improves the stability of a door system, simultaneously realizes the electromagnet isolation function, ensures that the inner operation unlocking cannot be operated when a train is electrified and ensures the safety when the train is in operation.
Disclosure of Invention
The purpose of the utility model is that: aiming at the defects of the prior art, the utility model aims to provide a middle unlocking device of a train electric lock, which solves the problem that when the existing electric lock is locked, the unlocking force is larger when the internal and external operations are manually unlocked; when the inner operation unlocking steel wire rope acts, the outer operation unlocking steel wire rope acts together; the problem of unable realization power on isolation function can overcome traditional train door locking mechanism under the high-speed operation when realizing the unblock, and this middle unlocking device has manual unblock laborsaving concurrently, and the manual phase lock that separates of inside and outside operation does not mutually interfere, automatic reset's function and operation protect function, safe and reliable, simple structure, think about ingenious, the installation of being convenient for.
The technical scheme is as follows: the utility model discloses an intermediate unlocking device of a train electric lock, which comprises an inner operation wire drawing disc, an intermediate wire drawing disc, an outer operation wire drawing disc, an intermediate unlocking mounting plate, a wire drawing disc connecting plate and an electromagnet, wherein the intermediate unlocking mounting plate is fixedly connected with the wire drawing disc connecting plate, a connecting shaft is fixedly arranged between the intermediate unlocking mounting plate and the wire drawing disc connecting plate, the connecting shaft sequentially penetrates through the inner operation wire drawing disc, the intermediate wire drawing disc and the outer operation wire drawing disc, the electromagnet penetrates through the intermediate unlocking mounting plate to be fixedly connected, a lock tongue of the electromagnet can enter and exit in a groove of the inner operation wire drawing disc, the inner operation wire drawing disc is connected with an inner operation unlocking wire rope, one side of the intermediate wire drawing disc is connected with a lower electric lock manual unlocking wire rope, the other side of the intermediate wire drawing disc is connected with an upper electric lock manual unlocking wire rope, the outer operation wire drawing disc is connected with an outer operation unlocking wire rope, the inner operation wire drawing disc and the outer operation wire drawing disc can independently drive the intermediate wire drawing disc to rotate, steps are arranged on the inner operation wire drawing disc, the intermediate wire drawing disc and the outer operation wire drawing disc are smaller in radius than that of the inner operation wire drawing disc.
Further, steps are arranged on all the drawing wire reels, when the inner operation drawing wire reels drive the middle drawing wire reels to rotate, the outer operation drawing wire reels remain stationary, and when the outer operation drawing wire reels drive the middle drawing wire reels to rotate, the inner operation drawing wire reels remain stationary, so that the function that independent actions of the inner operation drawing wire reels and the outer operation drawing wire reels are not affected by each other can be realized.
Further, the radius of the inner operation wire drawing disc and the radius of the outer operation wire drawing disc are 1.5 times of that of the middle wire drawing disc, so that the output force of the middle wire drawing disc is 1.5 times of the input pulling force of the inner operation wire drawing disc, and the labor-saving function is achieved.
Further, the intermediate unlocking mounting plate is inverted U-shaped.
Further, the connecting shaft is fixed with the middle unlocking mounting plate and the wire drawing disc connecting plate through connecting screws respectively.
Further, the inner operation wire drawing disc, the middle wire drawing disc and the outer operation wire drawing disc are respectively fixed on the connecting shaft through deep groove ball bearings.
Further, an inner operation wire drawing disc torsion spring is arranged between the inner operation wire drawing disc and the middle unlocking mounting plate, the connecting shaft penetrates through the inner operation wire drawing disc torsion spring, one end of the inner operation wire drawing disc torsion spring is fixedly connected with the inner operation wire drawing disc, and the other end of the inner operation wire drawing disc torsion spring is fixedly connected with the middle unlocking mounting plate.
Further, an external operation wire drawing disc torsion spring is arranged between the external operation wire drawing disc and the wire drawing disc connecting plate, the connecting shaft penetrates through the external operation wire drawing disc torsion spring, one end of the external operation wire drawing disc torsion spring is fixedly connected with the external operation wire drawing disc, and the other end of the external operation wire drawing disc torsion spring is fixedly connected with the wire drawing disc connecting plate.
Further, the lower end of the middle unlocking mounting plate is fixedly connected with a steel wire rope adjusting sleeve, and the lower electric lock manually unlocks the steel wire rope to penetrate through the steel wire rope adjusting sleeve.
Further, the outer operating drawing wire coil is provided with a first connecting pin for preventing the steel wire rope from being separated from the outer operating drawing wire coil.
Further, the middle wire drawing disc is provided with a second connecting pin for preventing the upper electric lock from manually unlocking the steel wire rope or the lower electric lock from manually unlocking the steel wire rope to be separated from the middle wire drawing disc.
Further, the torques of the inner operating drawing wire coil 1 and the outer operating drawing wire coil 3 are as large as the torque of the intermediate drawing wire coil 2, and the radius of the intermediate drawing wire coil 2 is smaller than that of the inner operating drawing wire coil 1 and the outer operating drawing wire coil 3.
The beneficial effects are that: compared with the prior art, the utility model has the following advantages:
(1) According to the intermediate unlocking device of the electric lock of the train, when the electric lock is unlocked manually, the manual unlocking can be ensured under the condition of no effort, the operation experience of a person is improved, and meanwhile, the electric lock can be unlocked quickly and easily under the emergency condition, and the safety performance of the train is improved.
(2) The intermediate unlocking device of the train electric lock ensures that the inner and outer operation steel wire ropes are not interfered when unlocked; when the inner operation steel wire rope is unlocked, the outer operation steel wire rope is kept static; when the outer operating wire rope is unlocked, the inner operating wire rope remains stationary. And the unlocking of the inner operation and the outer operation is monitored in real time, so that the stability of the door system is improved.
(3) The intermediate unlocking device of the electric lock of the train ensures that the internal operation unlocking cannot be operated when the train is electrified and ensures the safety when the train is in operation. The manual unlocking of the inner and outer operation can ensure that the vehicle door can be easily and smoothly opened. When the vehicle door is electrified and operates, the manual unlocking can not be performed during internal operation, so that the safety of the train during operation is ensured.
(4) The intermediate unlocking device of the electric lock of the train has the functions of labor-saving unlocking, resetting and operation protection, and is an important part for realizing the electric locking function of a door system. The device has the functions of manual unlocking and automatic resetting and operation protection when the traditional train door locking mechanism is operated at high speed, and is safe, reliable, simple in structure, ingenious in conception and convenient to install.
Drawings
FIG. 1 is a schematic diagram of a manual unlocking state of an intermediate unlocking device of the electric lock of the train of the present utility model;
FIG. 2 is a schematic diagram of the intermediate unlocking device of the electric lock of the train in a state where the intermediate unlocking device is unlocked by an internal operation which is not allowed;
FIG. 3 is a schematic diagram of the state of the intermediate unlocking device of the electric lock of the train when the intermediate unlocking device allows the inner operation to be unlocked;
FIG. 4 is a schematic diagram of the state of the intermediate unlocking device of the electric lock of the train of the present utility model when the intermediate unlocking device is operated to unlock;
fig. 5 is a schematic diagram of the state of the train electric lock according to the present utility model when the intermediate unlocking device is unlocked by external operation.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the intermediate unlocking device of the train electric lock comprises an inner operation wire drawing disc 1, an intermediate wire drawing disc 2, an outer operation wire drawing disc 3, an inverted U-shaped intermediate unlocking mounting plate 4, a wire drawing disc connecting plate 5 and an electromagnet 7, wherein the intermediate unlocking mounting plate 4 and the wire drawing disc connecting plate 5 are fixedly connected through screws, a connecting shaft 14 is arranged between the intermediate unlocking mounting plate 4 and the wire drawing disc connecting plate 5, the connecting shaft 14 is respectively fixed with the intermediate unlocking mounting plate 4 and the wire drawing disc connecting plate 5 through connecting screws 9, the connecting shaft 14 sequentially penetrates through the inner operation wire drawing disc 1, the intermediate wire drawing disc 2 and the outer operation wire drawing disc 3, the inner operation wire drawing disc 1, the intermediate wire drawing disc 2 and the outer operation wire drawing disc 3 are respectively fixed on the connecting shaft 14 through deep groove ball bearings 6, steps are arranged on all the inner operation wire drawing disc 1, the intermediate wire drawing disc 2 and the outer operation wire drawing disc 3, when the inner operation wire drawing disc drives the intermediate wire drawing disc to rotate, the outer operation wire drawing disc is kept static, when the outer operation wire drawing disc drives the intermediate wire drawing disc to rotate, the inner operation wire drawing disc is kept static, the inner operation wire drawing disc and the outer operation wire drawing disc can not independently and independently realize the mutual influence of the inner and outer operation. The radius of the inner operation wire drawing disc 1 and the radius of the outer operation wire drawing disc 3 are 1.5 times of that of the middle wire drawing disc 2, so that the labor-saving function is achieved. The electromagnet 7 is fixed on the middle unlocking mounting plate 4 through a screw and penetrates through the middle unlocking mounting plate 4, a lock tongue of the electromagnet 7 can enter and exit in a groove of the inner operation wire drawing disc 1, and when the electromagnet 7 stretches out, the lock tongue is clamped in the groove of the inner operation wire drawing disc 1 to prevent the inner operation wire drawing disc 1 from rotating, so that the function that the inner operation cannot unlock and isolate after the train is electrified is achieved. The inner operation wire drawing disc 1 is connected with an inner operation unlocking wire rope 11, one side of the middle wire drawing disc 2 is connected with a lower electric lock manual unlocking wire rope 12, the other side of the middle wire drawing disc 2 is connected with an upper electric lock manual unlocking wire rope 13, and the outer operation wire drawing disc 3 is connected with an outer operation unlocking wire rope 10. An inner operation wire drawing disc torsion spring 17 is arranged between the inner operation wire drawing disc 1 and the middle unlocking mounting plate 4, the connecting shaft 14 penetrates through the inner operation wire drawing disc torsion spring 17, one end of the inner operation wire drawing disc torsion spring 17 is fixedly connected with the inner operation wire drawing disc 1, and the other end of the inner operation wire drawing disc torsion spring is fixedly connected with the middle unlocking mounting plate 4. An outer operation wire drawing disc torsion spring 16 is arranged between the outer operation wire drawing disc 3 and the wire drawing disc connecting plate 5, the connecting shaft 14 penetrates through the outer operation wire drawing disc torsion spring 16, one end of the outer operation wire drawing disc torsion spring 16 is fixedly connected with the outer operation wire drawing disc 3, and the other end of the outer operation wire drawing disc torsion spring 16 is fixedly connected with the wire drawing disc connecting plate 5. The lower end of the middle unlocking mounting plate 4 is fixedly connected with a steel wire rope adjusting sleeve 8 through a nut, a lower electric lock manually unlocks a steel wire rope 12 to penetrate through the steel wire rope adjusting sleeve 8, and the length of a pipe sleeve of the electric lock manually unlocks the steel wire rope 12 can be adjusted. The outer operation wire drawing disc is provided with a first connecting pin 18, and the connecting pin 18 is knocked into a pin hole of the middle wire drawing disc 2, so that the upper electric lock manual unlocking steel wire rope 13 and the lower electric lock manual unlocking steel wire rope 12 are prevented from being separated from the middle wire drawing disc 2. The intermediate wire drawing disc 2 is provided with a second connecting pin 15, and the connecting pin 15 is knocked into a pin hole of the outer operation wire drawing disc 3 to prevent the outer operation wire rope 10 from being separated from the outer operation wire drawing disc 3.
The working mechanism is as follows:
as shown in fig. 2-3, when the protection device for internal operation is in action, in the power-on state, the lock tongue of the electromagnet 7 extends out, and the lock tongue is clamped in the groove of the internal operation wire drawing disc 1, at this time, the internal operation wire drawing disc 1 cannot rotate, and the internal operation wire rope 11 cannot be unlocked. When the electromagnet 7 is in a power-off state, the lock tongue of the electromagnet 7 is retracted, the lock tongue is separated from the groove of the inner operation wire coil 2, and at the moment, the inner operation wire rope 11 can pull the inner operation wire coil 1 to rotate to unlock.
As shown in fig. 3-4, when the inner operation is unlocked, when the inner operation steel wire rope 11 is unlocked, the inner operation steel wire rope 11 drives the inner operation wire drawing disc 1 to rotate, the stop of the inner operation wire drawing disc 1 drives the middle wire drawing disc 2 to rotate, the middle wire drawing disc 2 drives the lower electric lock to manually unlock the steel wire rope 12 and the upper electric lock to manually unlock the steel wire rope 13 to tighten, and meanwhile, the unlocking of the upper electric lock and the lower electric lock is realized. When the stop of the inner operation wire drawing disc 11 drives the middle wire drawing disc 2 to rotate, the stop of the outer operation wire drawing disc 3 is separated from the middle wire drawing disc 2, and the outer operation wire drawing disc 3 is in a static state. The torque of the inner operation wire drawing disc 1 is as large as that of the middle wire drawing disc 2, the radius of the middle wire drawing disc 2 is smaller than that of the inner operation wire drawing disc 1, and the output force of the middle wire drawing disc is larger than the manual pulling force, so that the purpose of saving labor is achieved.
As shown in fig. 2 and 5, when the external operation is unlocked, when the external operation steel wire rope 10 is unlocked, the external operation steel wire rope 10 drives the external operation wire drawing disc 3 to rotate, the stop of the external operation wire drawing disc 3 drives the middle wire drawing disc 2 to rotate, the middle wire drawing disc 2 drives the lower electric lock to manually unlock the steel wire rope 12 and the upper electric lock to manually unlock the steel wire rope 13 to tighten, and meanwhile, the unlocking of the upper electric lock and the lower electric lock is realized. When the stop of the outer operation wire drawing disc 3 drives the middle wire drawing disc 2 to rotate, the stop of the inner operation wire drawing disc 1 is separated from the middle wire drawing disc 2, and the inner operation wire drawing disc 2 is in a static state.
Claims (10)
1. The utility model provides a middle unlocking device of train electric lock, its characterized in that, middle unlocking device includes interior operation drawing wire dish (1), middle drawing wire dish (2), outer operation drawing wire dish (3), middle unlocking mounting panel (4), drawing wire dish connecting plate (5) and electro-magnet (7), middle unlocking mounting panel (4) and drawing wire dish connecting plate (5) fixed connection, be equipped with connecting axle (14) between middle unlocking mounting panel (4) and the drawing wire dish connecting plate (5) fixedly, connecting axle (14) pass interior operation drawing wire dish (1), middle drawing wire dish (2) and outer operation drawing wire dish (3) in proper order, electro-magnet (7) pass middle unlocking mounting panel (4) fixed connection, the spring bolt of electro-magnet (7) can pass the inslot business turn over of interior operation drawing wire dish (1), interior operation drawing wire dish (1) is connected with interior operation unblock wire rope (11), one side of middle drawing wire dish (2) is connected with down electric lock manual unlocking wire rope (12), the opposite side of middle drawing wire dish (2) is connected with electric lock manual unlocking wire rope (13), outer operation drawing wire dish (3) are connected with outer operation drawing wire dish (3) alone, outer operation drawing wire dish (2) rotate, the inner operation wire drawing disc (1), the middle wire drawing disc (2) and the outer operation wire drawing disc (3) are all provided with steps, and the radius of the middle wire drawing disc (2) is smaller than the radius of the inner operation wire drawing disc (1) and the radius of the outer operation wire drawing disc (3).
2. The intermediate unlocking device of a train electric lock according to claim 1, characterized in that the intermediate unlocking mounting plate (4) is of inverted "U" shape.
3. The intermediate unlocking device of the electric lock of the train according to claim 1, characterized in that the connecting shaft (14) is respectively fixed with the intermediate unlocking mounting plate (4) and the wire drawing disc connecting plate (5) through connecting screws (9).
4. The intermediate unlocking device of the electric lock of the train according to claim 1, wherein the inner operation wire drawing disc (1), the intermediate wire drawing disc (2) and the outer operation wire drawing disc (3) are respectively fixed on the connecting shaft (14) through deep groove ball bearings (6).
5. The middle unlocking device of the electric lock of the train according to claim 1, wherein an inner operation wire drawing disc torsion spring (17) is arranged between the inner operation wire drawing disc (1) and the middle unlocking mounting plate (4), the connecting shaft (14) penetrates through the inner operation wire drawing disc torsion spring (17), one end of the inner operation wire drawing disc torsion spring (17) is fixedly connected with the inner operation wire drawing disc (1), and the other end of the inner operation wire drawing disc torsion spring is fixedly connected with the middle unlocking mounting plate (4).
6. The middle unlocking device of the train electric lock according to claim 1, wherein an outer operation wire drawing disc torsion spring (16) is arranged between the outer operation wire drawing disc (3) and the wire drawing disc connecting plate (5), the connecting shaft (14) penetrates through the outer operation wire drawing disc torsion spring (16), one end of the outer operation wire drawing disc torsion spring (16) is fixedly connected with the outer operation wire drawing disc (3), and the other end of the outer operation wire drawing disc torsion spring is fixedly connected with the wire drawing disc connecting plate (5).
7. The middle unlocking device of the electric train lock according to any one of claims 1 to 6, wherein the lower end of the middle unlocking mounting plate (4) is fixedly connected with a steel wire rope adjusting sleeve (8), and the lower electric train lock manually unlocks a steel wire rope (12) to pass through the steel wire rope adjusting sleeve (8).
8. Intermediate unlocking device for a train electric lock according to any of claims 1-6, characterized in that the outer operating pull wire coil is provided with a first connecting pin (18) preventing the wire rope (10) from coming off the outer operating pull wire coil (3).
9. Intermediate unlocking device for a train electric lock according to any of claims 1-6, characterized in that the intermediate pulling wire coil (2) is provided with a second connecting pin (15) preventing the upper electric lock manual unlocking wire rope (13) or the lower electric lock manual unlocking wire rope (12) from being separated from the intermediate pulling wire coil (2).
10. Intermediate unlocking device for a train electric lock according to any of claims 1-6, characterized in that the torque of both the inner operating pull wire coil (1) and the outer operating pull wire coil (3) is as large as the torque of the intermediate pull wire coil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349781.XU CN219451807U (en) | 2023-03-01 | 2023-03-01 | Middle unlocking device of train electric lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349781.XU CN219451807U (en) | 2023-03-01 | 2023-03-01 | Middle unlocking device of train electric lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219451807U true CN219451807U (en) | 2023-08-01 |
Family
ID=87411863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320349781.XU Active CN219451807U (en) | 2023-03-01 | 2023-03-01 | Middle unlocking device of train electric lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219451807U (en) |
-
2023
- 2023-03-01 CN CN202320349781.XU patent/CN219451807U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2010046489A1 (en) | Velocity limiter for an elevator | |
| EP1305249B1 (en) | Elevator car with a driving pulley driving machine integrated therein | |
| US8354765B2 (en) | Electric motor | |
| CN110306886B (en) | Emergency unlocking device in passenger room door system | |
| CN219451807U (en) | Middle unlocking device of train electric lock | |
| CN110644867B (en) | Electric pressing locking device, and control system and control method thereof | |
| CN105570357A (en) | Manual releasing device and brake using same | |
| CN204508522U (en) | A kind of elevator system of tower cylinder gear-rack type lifter | |
| CN114320040A (en) | An emergency unlocking device for an EMU door system | |
| CN110130772B (en) | Electric single-open outward swinging door | |
| CN212478900U (en) | Flap gate opening and closing system | |
| CN217028476U (en) | EMUs door system emergency unlocking device | |
| CN211422198U (en) | Emergency unlocking device in passenger room door system vehicle | |
| CN217205916U (en) | Vehicle door isolating device | |
| CN213205344U (en) | Manual driving device of flap gate opening and closing system | |
| CN220151116U (en) | Intermediate emergency unlocking device for rail vehicle door system | |
| CN210636961U (en) | Electric single-opening outward swinging door | |
| CN210117131U (en) | Screw elevator self-rescue mechanism | |
| CN221100072U (en) | Foreign matter blocking simulation device for traction machine brake | |
| CN210563998U (en) | Driving mechanism for electric outward swinging door | |
| CN210768318U (en) | Electric double-open outward swing door | |
| CN118029784A (en) | End unlocking device of automatic locking mechanism of vehicle door | |
| CN208631997U (en) | A kind of brake-loosing mechanism of drum brake | |
| CN217205986U (en) | Emergency unlocking device for vehicle door | |
| CN113250551B (en) | Vehicle door isolating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |