End door lock stop assembly for rail platform door

Abstract

The invention discloses an end door lock stopper assembly for a rail platform door, comprising an end door for the rail platform door, an upper crossbeam of the end door, an end door lock and a stopper block, wherein the end door lock is installed at the rear side of the end door near the top position, a stopper block installation groove extending left and right is provided at the bottom of the upper crossbeam of the end door, a lock tongue slot is provided behind the stopper block installation groove, the stopper block is horizontally inserted and installed in the stopper block installation groove, and is locked and fixed by a locking pin inserted horizontally and longitudinally, thereby realizing the embedded installation of the stopper block in the upper crossbeam of the end door, and the stopper block can be quickly horizontally and horizontally withdrawn from the stopper block installation groove after the locking pin is removed; when the end door is closed from front to back, the end door lock slides under the stopper block and the lock tongue is compressed until the lock tongue extends into the lock tongue slot on the rear side of the stopper block, and at this time, the stopper block is just blocked in front of the lock tongue of the end door lock to achieve locking. It is ensured that the end door is stable and not prone to shaking noise when closed, and the end door can be opened smoothly when the end door lock fails.

Description

Technical Field

[0001] The invention relates to a subway station platform door system, in particular to an end door lock stop assembly of a track platform door. Background Art

[0002] As an important part of subway stations, the platform door system mainly serves to isolate passengers from the track area, ensure passenger safety, and save energy and improve appearance.

[0003] After the rail platform door system is installed, the end doors are responsible for isolating the track area on both sides of the platform from the passenger area. The end doors have to withstand the piston wind from the trains, which is relatively stressful and places high demands on the end door locks (usually using floor and ground locks). In the current project, the end door lock is installed at the top of the rear side of the end door, and the stop block is fixed to the side wall of the upper crossbeam of the end door by bolts. When the end door is closed, the lock tongue of the end door lock is locked by the stop block. The stop block is fixed by bolts and has poor vibration resistance. When the end door is closed, the stop block is easy to loosen under the repeated action of the end door lock. At the same time, after the stop block is loosened, the end door is easy to produce shaking noise under the action of the piston wind, which increases maintenance costs and has a great impact on the passenger experience in the waiting area. In addition, once the end door lock fails, the end door cannot be opened to evacuate, which poses a safety hazard. Summary of the invention

[0004] The present invention aims to provide an end door lock stop assembly for a rail platform door, which ensures that the end door is stable and not prone to shaking noise when closed, and can smoothly open the end door when a fault occurs in the end door lock.

[0005] The locking pin is inserted horizontally and laterally into the locking pin installation groove, and is locked and fixed by a locking pin inserted horizontally and longitudinally, thereby realizing the embedded installation of the stop block in the upper crossbeam of the end door, and the stop block can be quickly and horizontally pulled out from the stop block installation groove after the locking pin is removed; when the end door is closed from front to back, the end door lock slides under the stop block and the lock tongue is compressed until the lock tongue extends into the lock tongue slot on the rear side of the stop block, and at this time, the stop block is just blocked in front of the lock tongue of the end door lock to realize locking.

[0006] As a preferred embodiment of the above scheme, the cross section of the stop block is I-shaped, the bottom corner of the front end of the stop block is rounded, and the top corner of the rear end of the lock tongue of the end door lock is also rounded. The stop block adopts an I-shaped shape, which further increases the contact area with the upper crossbeam and can ensure the balance of the front and rear forces, and the pull-out installation of the stop block is convenient and reliable; the rounded design can ensure that the lock tongue of the end door lock is automatically pressed down by the stop block and passes smoothly during the closing process of the end door, and after closing, the stop block is just in front of the lock tongue of the end door lock to achieve locking.

[0007] It is further preferred that the length of the stop block is less than the length of the upper cross beam of the end door, the locking pin longitudinally penetrates the upper cross beam of the end door and passes through the middle of the stop block, the lower height of the stop block is consistent with the height of the lock tongue slot, the height of the lock tongue slot is equal to the extension and contraction amount of the lock tongue of the end door lock, and the upper end surface of the fixed part of the end door lock is flush with the upper end surface of the end door. In the existing structure, the upper end surface of the end door lock is lower than the upper end surface of the end door, and the bottom of the stop block protrudes from the lower end surface of the upper cross beam of the end door. During the closing process of the end door lock, the end door will hit the stop block, accelerating the loosening of the stop block, while this structural design avoids the problem of the end door hitting the stop block.

[0008] Further preferably, a pull-out handle is provided on the front wall of the stop block to facilitate pulling out the stop block.

[0009] The beneficial effects of the present invention are as follows: a new upper crossbeam structure for the end door is adopted, and the stop blocks currently commonly installed on the side walls of the upper crossbeam for the end door are changed to be embedded in the upper crossbeam for the end door, thereby increasing the force-bearing area, ensuring the stability of the end door, and avoiding loosening and shaking noise; at the same time, the embedded end door stop is provided with a locking pin as an emergency safety lock. Once the end door lock fails, the emergency safety lock can be opened, and the end door stop block can be taken out horizontally, and the end door can be opened directly, eliminating the safety hazard that the end door cannot be opened due to a failure of the end door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the closed locking state of the present invention.

[0011] Figure 2 This is a schematic diagram of the installation of the stop block on the upper crossbeam of the end door.

[0012] Figure 3 It is a schematic diagram of the unlocking and opening process of the present invention.

[0013] Figure 4 This is the state in which the stopper is opened when the present invention is pulled out in an emergency. DETAILED DESCRIPTION

[0014] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0015] Combination Figure 1As shown in FIG. 4 , an end door lock stop assembly for a rail platform door is composed of an end door 1 for a rail platform door, an end door upper crossbeam 2, an end door lock 3, a stop block 4, and a locking pin 7. Figure 4 The left and right, up and down direction arrows are used to describe the

[0016] The end door lock 3 is installed at the top position of the rear side of the end door 1, and the bottom of the end door upper crossbeam 2 is provided with a stopper block installation groove 5 extending left and right. In the project implementation, the end door upper crossbeam is generally a customized steel material. In this structure, the end door upper crossbeam 2 adopts a modified profile, thereby providing conditions for the embedded installation of the stopper block 4 on the end door upper crossbeam.

[0017] A lock tongue slot 6 is provided behind the stopper block installation slot 5 for inserting the lock tongue 3a of the end door lock 3, and the size of the lock tongue slot 6 matches the lock tongue 3a. The stopper block 4 is inserted horizontally and transversely into the stopper block installation slot 5, and is locked and fixed by the locking pin 7 inserted horizontally and longitudinally, so as to realize the embedded installation of the stopper block 4 in the upper crossbeam 2 of the end door, and the stopper block 4 can be quickly and horizontally pulled out from the stopper block installation slot 5 after removing the locking pin 7. The convenience of embedded installation can increase the contact area between the stopper block 4 and the upper crossbeam 2 of the end door; at the same time, the hidden installation method of the stopper block 4, compared with the traditional structure, will not hit the stopper block 4 laterally when the end door is closed. This structure can ensure the stability and reliability of the stopper block itself and the stability and reliability of the end door, avoid looseness and shaking noise, improve the comfort of passengers' waiting experience, reduce maintenance costs, and also provide a prerequisite for emergency safety opening.

[0018] When the end door 1 is closed from front to back, the end door lock 3 slides under the stop block 4 and the lock tongue 3a is compressed until the lock tongue 3a extends into the lock tongue slot 6 behind the stop block 4. At this time, the stop block 4 is just in front of the lock tongue 3a of the end door lock 3 to achieve locking. After the lock tongue 3a passes the stop block 4, it automatically extends into the lock tongue slot 6 to achieve locking.

[0019] Preferably, the cross section of the stop block 4 is I-shaped, the bottom corner of the front end of the stop block 4 is rounded, and the top corner of the rear end of the lock tongue 3a of the end door lock 3 is also rounded.

[0020] In addition, the length of the stopper block 4 is less than the length of the upper cross beam 2 of the end door, the locking pin 7 longitudinally penetrates the upper cross beam 2 of the end door and passes through the middle of the stopper block 4, and the stopper block installation groove 5 does not penetrate the entire length direction of the upper cross beam 2 of the end door. The lower height of the stopper block 4 is consistent with the height of the lock tongue card slot 6, the height of the lock tongue card slot 6 is equal to the extension amount of the lock tongue 3a of the end door lock 3, and the upper end surface of the fixed part of the end door lock 3 is flush with the upper end surface of the end door 1.

[0021] In order to facilitate the pulling out of the stop block 4 , a pulling out handle (not shown in the figure) is provided on the front wall of the stop block 4 .

[0022] Figure 1 The figure shows a closed locked state, in which the lock tongue 3a of the end door lock 3 extends into the lock tongue slot 6, and the stop block 4 blocks the lock tongue 3a right in front of the lock tongue 3a to achieve locking. Figure 3 The figure shows the unlocking and opening process, in which the end door lock 3 is unlocked, the lock tongue 3a of the end door lock 3 is retracted, the end door 1 and the end door lock 3 move forward, and after passing the stop block 4, the unlocking mechanism of the end door lock 3 is released, and the lock tongue 3a returns to its position. Figure 4 As shown, when the end door lock 3 fails and cannot be opened, the locking pin 7 is removed, the stop block 4 can be pulled out horizontally, and the end door 1 can be opened smoothly.

Claims

1. An end door lock stop assembly for a railway platform door, comprising an end door (1) for the railway platform door, an upper crossbeam (2) for the end door, an end door lock (3) and a stop block (4), wherein the end door lock (3) is installed at the rear side of the end door (1) near the top, and is characterized in that: A stopper block installation groove (5) extending left and right is provided at the bottom of the end door upper cross beam (2), and a lock tongue slot (6) is provided behind the stopper block installation groove (5). The stopper block (4) is horizontally inserted and installed in the stopper block installation groove (5), and is locked and fixed by a horizontally longitudinally inserted lock pin (7), so that the stopper block (4) is embedded and installed in the end door upper cross beam (2), and the stopper block (4) can be quickly horizontally and horizontally withdrawn from the stopper block installation groove (5) after the lock pin (7) is removed; when the end door (1) is closed from front to back, the end door lock (3) slides under the stopper block (4) and the lock tongue (3a) is compressed until the lock tongue (3a) extends into the lock tongue slot (6) at the rear side of the stopper block (4), and at this time, the stopper block (4) is just in front of the lock tongue (3a) of the end door lock (3) to achieve locking.

2. The end door lock stop assembly of the rail platform door according to claim 1, characterized in that: The cross section of the stop block (4) is in an I-shape, the bottom corner of the front end of the stop block (4) is rounded, and the top corner of the rear end of the lock tongue (3a) of the end door lock (3) is also rounded.

3. The end door lock stop assembly of the rail platform door according to claim 2, characterized in that: The length of the stop block (4) is less than the length of the upper cross beam (2) of the end door, the locking pin (7) longitudinally penetrates the upper cross beam (2) of the end door and passes through the middle of the stop block (4), the height of the lower part of the stop block (4) is consistent with the height of the lock tongue slot (6), the height of the lock tongue slot (6) is equal to the extension amount of the lock tongue (3a) of the end door lock (3), and the upper end surface of the fixed part of the end door lock (3) is flush with the upper end surface of the end door (1).

4. The end door lock stop assembly of the rail platform door according to any one of claims 1 to 3, characterized in that: A pull-out handle is provided on the front wall of the stop block (4).

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