Double-ratchet rack type platform door electromagnetic lock
By adopting a double ratchet rack-type structure and a manual unlocking lever in the electromagnetic lock of the platform door, the problems of easy damage and functional failure of traditional electromagnetic locks are solved, achieving higher stability and accuracy, and simplifying the manual operation process.
Patent Information
- Application Number
- CN202421178396.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The electromagnetic lock structure of the traditional platform door is prone to damage due to impact force, resulting in functional failure, poor stability and accuracy, which affects the normal operation of the train.
Adopting a double ratchet rack-and-pinion structure, through the combination of the left ratchet, the right ratchet and the left rack lock plate and the right rack lock plate, it can avoid impact and effectively lock, and realize manual operation through the manual unlocking lever when no power is supplied. .
The stability and accuracy are greatly improved, collisions and locking failures caused by installation accuracy are avoided, and the debugging process is simplified.
Smart Images
Figure CN222376234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic locks, in particular to a double ratchet rack type platform door electromagnetic lock. Background Art
[0002] As a high-tech product in the construction of urban rail transit, platform doors can improve the service level of rail transit projects. Electromagnetic locks, as devices assisting the application of platform doors, often determine the reliability and stability of the platform door system.
[0003] The traditional platform door electromagnetic lock structure is easily damaged by impact force, resulting in functional failure, poor stability and accuracy, frequent errors and mechanical failures, affecting the normal operation of the entire train. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] The purpose of the utility model is to provide a double ratchet rack type platform door electromagnetic lock to solve the problems raised in the above background technology.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double ratchet rack type platform door electromagnetic lock, comprising a lock body, an electromagnetic lock is arranged on the top of the lock body, a sliding plate which can be moved left and right is arranged on the output end of the electromagnetic lock, a rotating arm is arranged on the end of the sliding plate away from the electromagnetic lock, and an end of the rotating arm close to the sliding plate is rotatably installed inside the lock body through a mounting column, an unlocking plate is arranged at the center position inside the lock body, a manual unlocking rod is fixedly connected to the lower end of the unlocking plate, a travel switch 1, a travel switch 2 and a travel switch 3 are fixedly installed inside the lock body, and the travel switch 3 is located on the upper right side of the unlocking plate, a left ratchet and a right ratchet are symmetrically arranged on the left and right sides of the lock body, a left rack lock plate and a right rack lock plate are correspondingly arranged at the lower parts of the left ratchet and the right ratchet, and the travel switch 1 and the travel switch 2 are located between the left rack lock plate and the right rack lock plate.
[0008] Preferably, a dial is rotatably mounted on one end of the sliding plate close to the rotating arm through a mounting column, a side of the rotating arm close to the dial is a linear concave structure, and the dial is located on the inner side of the linear concave structure of the dial.
[0009] Through the above technical scheme, the electromagnetic lock is energized to drive the sliding plate to move, driving the rotating arm to slide on the linear guide rail, the unlocking plate moves upward, the left ratchet and the right ratchet are unlocked, and they can rotate clockwise or counterclockwise, so that the left rack lock plate and the right rack lock plate move outward to open and achieve unlocking; when the left rack lock plate and the right rack lock plate move from both sides to the middle respectively, the racks on the left rack lock plate and the right rack lock plate clamp the left ratchet and the right ratchet to rotate, and when the left rack lock plate and the right rack lock plate contact the travel switch 1 and the travel switch 2 respectively, the left ratchet and the right ratchet are actuated and checked in real time (cannot rotate in the opposite direction) to achieve locking.
[0010] Preferably, the center line position inside the lock body is provided with limit block one and limit block two from top to bottom in sequence for limiting the vertical movement of the manual unlocking rod. The outer side of the manual unlocking rod is provided with a spring that can reset the manual unlocking rod, and the spring is located between limit block one and limit block two.
[0011] Through the above technical solution, when there is no electricity, the manual unlocking rod is pushed to drive the unlocking plate to move. When the unlocking plate touches the travel switch three, the left ratchet and the right ratchet are unlocked, and they can rotate clockwise or counterclockwise to achieve manual operation.
[0012] Preferably, a quick release is provided at one end of the rotating arm close to the unlocking plate, a movable groove is provided on the front side of the unlocking plate, and the quick release is located on the inner side of the movable groove.
[0013] Through the above technical solution, the sliding plate is driven to move left and right by the electromagnetic lock. During the left and right movement of the sliding plate, the quick release follows the movement. Under the limitation of the movable groove, the rotating arm is driven to rotate with its left end as the center of the circle. The height of the right end of the rotating arm follows the change, thereby adjusting the height of the unlocking plate.
[0014] Preferably, a linear guide rail is fixedly installed inside the lock body, a slider is fixedly installed on the rear side of the unlocking plate, and the slider is slidably arranged on the inner side of the linear guide rail.
[0015] Through the above technical solution, the unlocking plate moves linearly up and down on the linear guide rail through the provided slider.
[0016] Preferably, the teeth on the left ratchet wheel mesh with the teeth on the left rack locking plate, and the teeth on the right ratchet wheel mesh with the teeth on the right rack locking plate.
[0017] Preferably, the manual unlocking rod is a "T"-shaped structure, and the bottom of the manual unlocking rod is disc-shaped.
[0018] Through the above technical solution, the manual unlocking lever is provided so that the whole can be used in the event of a power outage.
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] The double ratchet rack platform door electromagnetic lock adopts a left ratchet, a right ratchet and a left rack lock plate, a right rack lock plate structural combination to avoid impact and effectively lock, and the stability and accuracy are greatly improved. At the same time, the left ratchet, the right ratchet and the left rack lock plate, the right rack lock plate can be adjusted according to the locking state during operation at the actual installation site, effectively avoiding the shortcomings of impact caused by installation accuracy, locking failure, and time-consuming debugging. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the internal structure of the utility model;
[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;
[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;
[0024] Figure 4 This is a schematic diagram of the installation structure of the slider of the utility model;
[0025] Figure 5 This is a schematic diagram of the linear guide structure of the utility model;
[0026] Figure 6 For this utility model Figure 1 Enlarged structural diagram at A in the middle.
[0027] In the figure: 1. electromagnetic lock; 2. sliding plate; 3. rotating arm; 4. unlocking plate; 5. left ratchet; 6. right ratchet; 7. travel switch one; 8. travel switch two; 9. manual unlocking lever; 10. left rack lock plate; 11. right rack lock plate; 12. lock body; 13. linear guide; 14. travel switch three; 15. limit block one; 16. limit block two; 17. spring; 201. dial; 301. fast dial; 401. movable slot; 402. slider. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] See also Figure 1-6The utility model provides a technical solution: a double ratchet rack type platform door electromagnetic lock, including an electromagnetic lock 1, a sliding plate 2, a rotating arm 3, an unlocking plate 4, a left ratchet 5, a right ratchet 6, a travel switch 1 7, a travel switch 2 8, a manual unlocking lever 9, a left rack lock plate 10, a right rack lock plate 11, a lock body 12, a linear guide 13, a travel switch 3 14, a limit block 1 15, a limit block 2 16, a spring 17, a dial 201, a fast dial 301, a movable groove 401 and a slider 402. The top of the lock body 12 is provided with an electromagnetic lock 1, the output end of the electromagnetic lock 1 is provided with a sliding plate 2 that can move left and right, and the end of the sliding plate 2 away from the electromagnetic lock 1 is provided with A rotating arm 3, one end of the rotating arm 3 close to the sliding plate 2 is rotatably installed inside the lock body 12 through a mounting column, an unlocking plate 4 is arranged at the center position inside the lock body 12, and a manual unlocking rod 9 is fixedly connected to the lower end of the unlocking plate 4, a travel switch 1 7, a travel switch 2 8 and a travel switch 3 14 are fixedly installed inside the lock body 12, and the travel switch 3 14 is located on the upper right side of the unlocking plate 4, a left ratchet 5 and a right ratchet 6 are symmetrically arranged on the left and right sides of the lock body 12, and a left rack lock plate 10 and a right rack lock plate 11 are correspondingly arranged at the lower parts of the left ratchet 5 and the right ratchet 6, and the travel switch 1 7 and the travel switch 2 8 are located between the left rack lock plate 10 and the right rack lock plate 11.
[0030] Furthermore, a dial 201 is rotatably mounted on one end of the sliding plate 2 close to the rotating arm 3 through a mounting column, and a side of the rotating arm 3 close to the dial 201 is a linear concave structure, and the dial 201 is located on the inner side of the linear concave structure of the dial 201 . The advantage is that when the electromagnetic lock 1 is energized, the sliding plate 2 is driven to move, which drives the rotating arm 3 to slide on the linear guide 13, the unlocking plate 4 is upward, the left ratchet 5 and the right ratchet 6 are unlocked, and they can rotate clockwise or counterclockwise, so that the left rack lock plate 10 and the right rack lock plate 11 move outward to open and achieve unlocking; when the left rack lock plate 10 and the right rack lock plate 11 move from both sides to the middle respectively, the racks on the left rack lock plate 10 and the right rack lock plate 11 clamp the left ratchet 5 and the right ratchet 6 to rotate, and when the left rack lock plate 10 and the right rack lock plate 11 contact the travel switch 1 7 and the travel switch 2 8 respectively, the left ratchet 5 and the right ratchet 6 are actuated and checked in real time (they cannot rotate in the opposite direction) to achieve locking.
[0031] Furthermore, the center line position inside the lock body 12 is sequentially provided with a limit block 15 and a limit block 2 16 from top to bottom to limit the vertical movement of the manual unlocking rod 9, and the outer side of the manual unlocking rod 9 is sleeved with a spring 17 capable of resetting the manual unlocking rod 9, and the spring 17 is located between the limit block 15 and the limit block 2 16. The advantage is that when no power is supplied, the manual unlocking rod 9 is pushed to drive the unlocking plate 4 to move, and when the unlocking plate 4 touches the travel switch 3 14, the left ratchet 5 and the right ratchet 6 are unlocked, and can be rotated clockwise or counterclockwise, realizing manual operation.
[0032] Furthermore, a quick-release 301 is provided at one end of the rotating arm 3 close to the unlocking plate 4, and a movable groove 401 is provided on the front of the unlocking plate 4, and the quick-release 301 is located inside the movable groove 401. The advantage is that the electromagnetic lock 1 drives the sliding plate 2 to move left and right, and the quick-release 301 moves along with the sliding plate 2 during the left and right movement. Under the limit of the movable groove 401, the rotating arm 3 is driven to rotate with its left end as the center of the circle, and the height of the right end of the rotating arm 3 changes accordingly, thereby adjusting the height of the unlocking plate 4.
[0033] Furthermore, a linear guide 13 is fixedly installed inside the lock body 12, and a slider 402 is fixedly installed on the rear side of the unlocking plate 4, and the slider 402 is slidably arranged inside the linear guide 13. Advantageously, the unlocking plate 4 moves linearly up and down on the linear guide 13 through the slider 402.
[0034] Furthermore, the teeth on the left ratchet 5 mesh with the teeth on the left rack lock plate 10 , and the teeth on the right ratchet 6 mesh with the teeth on the right rack lock plate 11 .
[0035] Further, the manual unlocking lever 9 is a "T"-shaped structure, and the bottom of the manual unlocking lever 9 is disc-shaped. The advantage is that the manual unlocking lever 9 provided enables the whole to be used in the case of power failure.
[0036] Working principle: First, the electromagnetic lock 1 is energized to drive the sliding plate 2 to move, driving the rotating arm 3 to slide on the linear guide 13, the unlocking plate 4 is upward, the left ratchet 5 and the right ratchet 6 are unlocked, and they can rotate clockwise or counterclockwise, so that the left rack lock plate 10 and the right rack lock plate 11 move outward to open and unlock; when the left rack lock plate 10 and the right rack lock plate 11 move from both sides to the middle respectively, the racks on the left rack lock plate 10 and the right rack lock plate 11 clamp the left ratchet 5 and the right ratchet 6 to rotate, and when the left rack lock plate 10 and the right rack lock plate 11 contact the travel switch 1 7 and the travel switch 2 8 respectively, the left ratchet 5 and the right ratchet 6 act and are checked in real time (in the opposite direction) The locking is realized by pushing the manual unlocking lever 9 and driving the unlocking plate 4 to move when the unlocking plate 4 touches the travel switch 3 14, and the left ratchet 5 and the right ratchet 6 are unlocked, and the gears can be rotated clockwise or counterclockwise to realize manual operation. The structural combination of the left ratchet 5, the right ratchet 6 and the left rack locking plate 10 and the right rack locking plate 11 is adopted to avoid impact and effectively lock the gears, and the stability and accuracy are greatly improved. At the same time, the left ratchet 5, the right ratchet 6 and the left rack locking plate 10 and the right rack locking plate 11 can be adjusted according to the locking state when they are operated at the actual installation site, which effectively avoids the shortcomings of impact, locking failure and time-consuming debugging caused by installation accuracy.
[0037] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.
Claims
1. A double ratchet rack type platform door electromagnetic lock, comprising a lock body (12), characterized in that: An electromagnetic lock (1) is arranged at the top of the lock body (12); a sliding plate (2) movable leftward and rightward is arranged at the output end of the electromagnetic lock (1); a rotating arm (3) is arranged at the end of the sliding plate (2) away from the electromagnetic lock (1); an end of the rotating arm (3) close to the sliding plate (2) is rotatably mounted inside the lock body (12) through a mounting column; an unlocking plate (4) is arranged at the center of the lock body (12); a manual unlocking rod (9) is fixedly connected to the lower end of the unlocking plate (4); and a manual unlocking rod (9) is fixedly mounted inside the lock body (12). A travel switch 1 (7), a travel switch 2 (8) and a travel switch 3 (14) are fixedly installed, the travel switch 3 (14) is located on the upper right side of the unlocking plate (4), a left ratchet (5) and a right ratchet (6) are symmetrically arranged on the left and right sides inside the lock body (12), a left rack lock plate (10) and a right rack lock plate (11) are correspondingly arranged at the lower parts of the left ratchet (5) and the right ratchet (6), and the travel switch 1 (7) and the travel switch 2 (8) are located between the left rack lock plate (10) and the right rack lock plate (11).
2. A double ratchet rack platform door electromagnetic lock according to claim 1, characterized in that: A dial (201) is rotatably mounted on one end of the sliding plate (2) close to the rotating arm (3) via a mounting column, and a side of the rotating arm (3) close to the dial (201) is a linear concave structure, and the dial (201) is located on the inner side of the linear concave structure of the dial (201).
3. A double ratchet rack platform door electromagnetic lock according to claim 1, characterized in that: A first limit block (15) and a second limit block (16) for limiting the vertical movement of the manual unlocking rod (9) are arranged in sequence from top to bottom at the center line position inside the lock body (12); a spring (17) capable of resetting the manual unlocking rod (9) is sleeved on the outer side of the manual unlocking rod (9); the spring (17) is located between the first limit block (15) and the second limit block (16).
4. A double ratchet rack platform door electromagnetic lock according to claim 1, characterized in that: A quick release (301) is provided at one end of the rotating arm (3) close to the unlocking plate (4), a movable groove (401) is provided on the front side of the unlocking plate (4), and the quick release (301) is located on the inner side of the movable groove (401).
5. The double ratchet rack type platform door electromagnetic lock according to claim 1, characterized in that: A linear guide rail (13) is fixedly installed inside the lock body (12), and a slider (402) is fixedly installed on the rear side of the unlocking plate (4), and the slider (402) is slidably arranged on the inner side of the linear guide rail (13).
6. A double ratchet rack platform door electromagnetic lock according to claim 1, characterized in that: The teeth on the left ratchet (5) mesh with the teeth on the left rack lock plate (10), and the teeth on the right ratchet (6) mesh with the teeth on the right rack lock plate (11).
7. The double ratchet rack type platform door electromagnetic lock according to claim 1, characterized in that: The manual unlocking rod (9) is a "T"-shaped structure, and the bottom of the manual unlocking rod (9) is disc-shaped.