Anti-back-locking escape door lock for rail transit

Abstract

The utility model relates to the technical field of escape door locks, in particular to an anti-back-locking escape door lock for rail transit, which comprises a lock body, a supporting cover and a handle, a connecting disc is mounted on one side of the outer wall of the handle in an interference manner, a fixing block is mounted on one side of the outer wall of the lower end of the connecting disc, and a limiting rod is mounted on the outer wall of one side of the fixing block. A clamping groove is formed in one side of the outer wall of the lower end of the limiting rod, a first limiting plate is installed on the outer wall of one side of the supporting cover, a second limiting plate is installed on one side of the outer wall of the lower end of the supporting cover, a storage groove is formed in the second limiting plate, a supporting block is installed on the outer wall of one side of the second limiting plate, and a movable rod is movably installed in the supporting block. And a clamping sleeve is installed on the outer wall of one end of the movable rod, and a rolling wheel is rotationally installed in the clamping sleeve, so that subsequent overturning of the handle is avoided, it is guaranteed that the escape door is continuously in an open state, escape personnel can escape through the escape door conveniently, and the safety of the escape door can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an escape door lock technical field, concretely relates to a rail transit is with anti -lock escape door lock. BACKGROUND

[0002] Rail transit refers to a kind of traffic tool or transport system, which needs to drive on specific track, and in the system of rail transit, there are station, rail line, vehicle and power supply system etc., wherein station is the place where passengers get on and off, transfer, and is also the node of rail transit system and other traffic modes in city, including platform, station hall, ticket hall, entrance and exit facilities, and the facilities in station need to be separated by door, so door needs to be equipped with door lock for use.

[0003] Escape door lock is also called fire exit lock, fire escape lock, etc., which is a special lock for emergency exit door, and in emergency situation such as fire, earthquake etc., internal personnel do not need to use key or other tools, only need to push the pressure rod or press the handle, and the door can be quickly opened for rapid evacuation.

[0004] The utility model discloses a rail transit is with anti -lock escape door lock, including lock body and lock head, the lock head includes lock head shell part, lock core assembly, lock head paddle, steel ball spring and steel ball, lock head shell part is connected with lock body, the end of lock core assembly towards lock body is in sequence and penetrates lock head shell part and lock head paddle, the end of lock core assembly away from lock body extends to the outside of lock body, lock head paddle is connected with lock core assembly and rotates with lock core assembly, lock head shell part is equipped with inner chamber, one end of steel ball spring is connected with the top of inner chamber, the other end of steel ball spring is connected with steel ball, the utility model discloses the inner chamber in the lock head body is provided, the steel ball and steel ball spring are movably arranged in the inner chamber, the steel ball groove is formed on the surface of lock core, so that the lock core can only rotate in one direction when rotating, and when rotating in the opposite direction, the steel ball will be blocked in the steel ball groove to prevent the lock core from being locked in the opposite direction, so that the escape door does not have the function of being locked in the opposite direction, to avoid the escape door being locked in the opposite direction in emergency, delaying the escape time and causing personal injury.

[0005] The prior art CN222414465U has many benefits in use, but still has the following problems, the limitation of the lock body state is not perfect, the anti-lock related structure of the lock body is arranged in the interior, which leads to high difficulty in subsequent maintenance, and affects the maintenance efficiency of the lock body. UTILITY MODEL CONTENTS

[0006] In view of the problems in the prior art, the utility model provides a rail transit is with anti -lock escape door lock.

[0007] The utility model discloses a kind of anti-reverse locking escape door locks for rail transit, including lock body, support cover and handle, the outer wall of both sides of lock body is provided with buckling plate, the outer wall of buckling plate side is provided with support cover, the inside of support cover is provided with handle, the outer wall of handle is installed with connecting disc on one side with interference, the outer wall of connecting disc lower end is installed with fixed block on one side, the outer wall of fixed block side is installed with limit rod, the outer wall of limit rod lower end is opened with clamping groove on one side, the outer wall of support cover side is installed with first limit plate, the outer wall of support cover lower end is installed with second limit plate on one side, the inside of second limit plate is opened with receiving groove, the outer wall of second limit plate side is installed with support block, the inside of support block is movably installed with movable rod, the outer wall of movable rod one end is installed with clamping sleeve, the inside of clamping sleeve is rotatably installed with gyro wheel.

[0008] By adopting the above technical scheme, the lock body is installed inside the escape door, and the buckling plate is located on both sides of the escape door. The staff can ensure the stable position of the lock body and the buckling plate inside and outside the escape door by fastening the buckling plate with screws, so as to fix the lock body and the buckling plate. The user can drive the lock cylinder to operate by rotating the handle, can control the extension state of the lock tongue, ensure that the operation of the handle can be accurately transmitted to the lock tongue, ensure that the opening and closing actions of the door lock are smooth, the first limit plate and the second limit plate provide accurate limiting and guiding for the rotation of the handle, ensure that the handle moves within a reasonable range, avoid affecting the normal use of the door lock due to excessive rotation or deviation, the receiving groove is used for receiving the limit rod, and the clamping sleeve can move through the movable rod, so that the clamping sleeve can be controlled to enter the inside of the clamping groove, can be limited with the position of the limit rod and the handle, ensure that the position of the handle is stable after rotating downward, avoid subsequent turning of the handle, ensure that the escape door continuously remains in the opened state, facilitate the escape personnel to escape through the escape door, and improve the safety of the escape door.

[0009] Specifically, the inside of the lock body is provided with a lock cylinder, one end of the handle is provided with a connecting piece, and the handle is connected with the lock cylinder through the connecting piece, and the outer wall of one side of the lock body is provided with a lock tongue.

[0010] By adopting the above technical scheme, the connecting piece ensures the stable connection between the handle and the lock cylinder, can effectively transmit the rotating force of the handle to the lock cylinder, realizes the normal opening and closing functions of the door lock, and the lock tongue is a key component for realizing the locking function of the door lock, which can cooperate with the corresponding structure on the door frame to lock the door, and ensure the safety of the door in the closed state.

[0011] Specifically, the outer wall of the support cover is provided with fasteners arranged in a circular array, and the support cover is connected with the buckling plate through the fasteners.

[0012] By adopting the technical scheme, the fastener not only ensures the connection strength between the supporting cover and the buckling plate, but also is more convenient and faster in the process of installation and disassembly.

[0013] Specifically, the outer wall of the movable rod is designed in a rectangular shape, the outer wall of the movable rod is provided with a spring, and the sleeve is elastically connected between the spring and the supporting block.

[0014] By adopting the technical scheme, the rectangular shape ensures the stability of the movable rod during movement, and the spring elastic force pushes the sleeve to ensure the stability of the position of the sleeve inside the clamping groove. When the limiting rod initially enters the storage slot, the roller contacts the side surface of the upper end surface of the limiting rod. Since the limiting rod and the roller are both circular, when the limiting rod extrudes the roller, the roller can move horizontally back until the limiting rod passes around the roller. Then, the spring elastic force pushes the sleeve to reset and enter the clamping groove. The sleeve, the sleeve and the storage slot can realize the limiting and fixing of the limiting rod, and the rotating position of the handle is fixed.

[0015] Specifically, the size of the limiting rod is smaller than the size of the inner wall of the storage slot, and the limiting rod is located inside the storage slot.

[0016] By adopting the technical scheme, the limiting rod can smoothly enter and exit the storage slot, providing sufficient space for the rotation of the handle, and the storage slot also limits the limiting rod.

[0017] Specifically, the size of the sleeve is smaller than the size of the clamping groove, and the sleeve is located inside the clamping groove, and the roller contacts the inner wall of the clamping groove.

[0018] By adopting the technical scheme, the sleeve can be accurately clamped into the clamping groove to realize the locking function of the limiting rod and the handle, and the setting of the roller reduces the friction between the limiting rod and the limiting rod, ensuring that the limiting rod can move back when extruding the roller.

[0019] The beneficial effects of the utility model are as follows:

[0020] (1) The anti-reverse locking escape door lock for rail transit provides accurate limiting and guiding for the rotation of the handle, ensures the movement of the handle within a reasonable range, and avoids affecting the normal use of the door lock due to excessive rotation or deviation.

[0021] (2) The anti-reverse locking escape door lock for rail transit ensures the stable position of the handle after rotating downward, avoids subsequent turning of the handle, ensures that the escape door remains in an open state, facilitates the escape movement of the escape personnel through the escape door, and can improve the safety of the escape door. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model is further illustrated below in connection with the drawings and embodiments.

[0023] Figure 1 It is the lock body structure main position diagram of the utility model;

[0024] Figure 2 It is the buckle plate structure exploded view of the utility model;

[0025] Figure 3 It is the handle structure enlarged view of the utility model;

[0026] Figure 4 It is the fixed block structure enlarged view of the utility model;

[0027] Figure 5 It is the support cover structure enlarged view of the utility model;

[0028] Figure 6 It is the support block structure enlarged view of the utility model.

[0029] In the drawing: 1, lock body;11, lock tongue;12, buckle plate;13, lock cylinder;2, support cover;21, fastener;22, first limit board;23, second limit board;24, storage groove;25, support block;26, movable rod;27, clamping sleeve;28, gyro wheel;29, spring;3, handle;31, connecting piece;32, connecting disc;33, fixed block;34, limit rod;35, clamping groove. Specific implementation

[0030] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in connection with specific implementation manners.

[0031] In order to save manpower and improve efficiency, as one embodiment of the utility model, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown, the utility model discloses a rail transit is with preventing reverse locking escape door lock, including lock body 1, support cover 2 and handle 3, lock body 1 both sides outer wall all is provided with the buckle plate 12, and the buckle plate 12 one side outer wall is provided with support cover 2, and support cover 2 inside is provided with handle 3, and handle 3 outer wall one side is installed with the connecting disc 32 of interference, and the connecting disc 32 lower end outer wall one side is installed with fixed block 33, and fixed block 33 one side outer wall is installed with the limiting rod 34, and the limiting rod 34 lower end outer wall one side is seted up with the card slot 35, and support cover 2 one side outer wall is installed with first limiting plate 22, and support cover 2 lower end outer wall one side is installed with second limiting plate 23, and second limiting plate 23 inside is seted up with the accommodation groove 24, and second limiting plate 23 one side outer wall is installed with support block 25, and support block 25 inside is movably installed with movable rod 26, and movable rod 26 one end outer wall is installed with the sleeve 27, and the sleeve 27 inside is rotatably installed with the gyro wheel 28.

[0032] When in use, the lock body 1 is installed in the inside of the escape door, and the buckle plate 12 is located on both sides of the escape door, the staff fastens the buckle plate 12 through the screw, the position stability of the lock body 1 and the buckle plate 12 in the inside and the outside of the escape door can be ensured, the purpose that the lock body and the buckle plate 12 are fixed is achieved, and the user can drive the lock cylinder 13 to operate by rotating the handle 3, the telescopic state of the lock tongue 11 can be controlled, the operation of the handle 3 can be accurately transmitted to the lock tongue 11, the opening and closing action of the door lock is smooth, the first limiting plate 22 and the second limiting plate 23 provide accurate limiting and guiding for the rotation of the handle 3, the handle 3 is ensured to move within a reasonable range, the normal use of the door lock is affected due to excessive rotation or deviation is avoided, the accommodation groove 24 is used for accommodating the limiting rod 34, and the sleeve 27 can move through the movable rod 26, so that the sleeve 27 can be controlled to enter the inside of the card slot 35, the position of the limiting rod 34 and the handle 3 can be limited, the position stability of the handle 3 after being rotated downward is ensured, the handle 3 is avoided to be turned over subsequently, the escape door is ensured to continuously be in the opened state, the escape personnel can escape through the escape door, and the safety of the escape door can be improved.

[0033] In order to lock the door, for example, as shown in the drawings, Figure 2 As shown, the lock body 1 is provided with the lock cylinder 13 inside, one end of the handle 3 is provided with the connecting piece 31, and the handle 3 is connected with the lock cylinder 13 through the connecting piece 31, and one side of the lock body 1 is provided with the lock tongue 11.

[0034] When in use, the connecting piece 31 ensures the stable connection between the handle 3 and the lock cylinder 13, the rotating force of the handle 3 can be effectively transmitted to the lock cylinder 13, the normal opening and closing functions of the door lock are realized, and the lock tongue 11 is a key component for realizing the locking function of the door lock, which can cooperate with the corresponding structure on the door frame to lock the door, and ensure the safety of the door in the closed state.

[0035] In order to keep the use position, exemplary, as shown in Figure 5 The support cover 2 is screwed with the buckle plate 12 through the fasteners 21.

[0036] In use, the fasteners 21 not only ensure the connection strength between the support cover 2 and the buckle plate 12, but also make the installation and disassembly more convenient and fast.

[0037] In order to keep the use position, exemplary, as shown in Figure 6 The outer wall of the movable rod 26 is designed in a rectangular shape, and the spring 29 is arranged on the outer wall of the movable rod 26. The clamping sleeve 27 is elastically connected between the spring 29 and the support block 25.

[0038] In use, the rectangular shape ensures the stability of the movable rod 26 during movement, and the spring 29 pushes the clamping sleeve 27 to ensure that the clamping sleeve 27 is stably positioned inside the clamping groove 35. When the limiting rod 34 initially enters the storage slot 24, the roller 28 contacts the side surface of the upper end surface of the limiting rod 34. Since the limiting rod 34 and the roller 28 are both circular, when the limiting rod 34 presses the roller 28, the roller 28 can move horizontally back through the limiting rod 34 until the limiting rod 34 passes around the roller 28. Then the spring 29 pushes the clamping sleeve 27 to reset and enter the clamping groove 35. Through the clamping sleeve 27, the clamping sleeve 27 and the storage slot 24, the limiting rod 34 can be limited and fixed, and the rotation position of the handle 3 is fixed.

[0039] In order to store, exemplary, as shown in Figure 5 The size of the limiting rod 34 is smaller than the size of the inner wall of the storage slot 24, and the limiting rod 34 is located inside the storage slot 24.

[0040] In use, the limiting rod 34 can smoothly enter and exit the storage slot 24, providing sufficient space for the rotation of the handle 3, and the storage slot 24 also limits the limiting rod 34.

[0041] In order to limit, exemplary, as shown in Figure 6 The size of the clamping sleeve 27 is smaller than the size of the clamping groove 35, and the clamping sleeve 27 is located inside the clamping groove 35, and the roller 28 contacts the inner wall of the clamping groove 35.

[0042] In use, the clamping sleeve 27 can be accurately clamped into the clamping groove 35 to realize the locking function of the limiting rod 34 and the handle 3. The setting of the roller 28 reduces the friction between the limiting rod 34 and the roller 28, ensuring that the limiting rod 34 can move back when the limiting rod 34 presses the roller 28.

[0043] The utility model discloses when using, install lock body 1 in the inside of escape door, respectively place the buckle plate 12 at the inside and outside of escape door, use screw fastening buckle plate 12, make the position of lock body 1 and buckle plate 12 stable fixed inside and outside escape door, when needing to open escape door, the rotation power of handle 3 will be accurately transmitted to lock cylinder 13 to drive lock cylinder 13 to operate, the operation of lock cylinder 13 will control the bolt 11 of one side of lock body 1 to retract, make bolt 11 exit from the corresponding structure on the door frame, thereby realize the unlocking of door.

[0044] In the rotation process of handle 3, first limiting plate 22 and second limiting plate 23 provide accurate limiting and guiding for handle 3, with the rotation of handle 3, connecting disc 32, fixed block 33 and limiting rod 34 connected on handle 3 also move, limiting rod 34 will enter the storage groove 24 of second limiting plate 23, when limiting rod 34 initially enters storage groove 24, the upper end surface side thereof will contact with roller 28, since limiting rod 34 and roller 28 are both circular, limiting rod 34 extrudes roller 28, makes roller 28 drive sleeve 27 to move horizontally through movable rod 26, and spring 29 on the outer wall of movable rod 26 is pressed.

[0045] When limiting rod 34 passes roller 28, the elastic force of spring 29 resets sleeve 27, sleeve 27 enters the clamping groove 35 on the lower end outer wall side of limiting rod 34, realizes the position limitation of limiting rod 34 and handle 3, and ensures that the position of handle 3 is stable after rotating downward.

[0046] When needing to close escape door, technical personnel manually pull limiting rod 34, makes limiting rod 34 and sleeve 27 exit from storage groove 24, then only needs to rotate handle 3 to restore to the initial position, so that lock cylinder 13 and bolt 11 can realize the locking door function again.

[0047] It should be noted that the utility model is a kind of anti-reverse lock escape door lock for rail transit, components in the utility model are components known by those skilled in the art, and its structure and principle are known by those skilled in the art through technical manual or through conventional experimental method.

[0048] The basic principle, main features and advantages of the utility model are shown and described above.The skilled person in the art should understand that the utility model is not limited by the above examples, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A reverse lock escape door lock for rail transit, characterized in that, The application relates to a lock body (1), a supporting cover (2) and a handle (3), the outer wall of one side of the lock body (1) is provided with a buckling plate (12), the outer wall of one side of the buckling plate (12) is provided with the supporting cover (2), the inner part of the supporting cover (2) is provided with the handle (3), the outer wall of one side of the handle (3) is provided with a connecting disc (32) in an interference fit, the outer wall of one side of the lower end of the connecting disc (32) is provided with a fixing block (33), the outer wall of one side of the fixing block (33) is provided with a limiting rod (34), the outer wall of one side of the lower end of the limiting rod (34) is provided with a clamping groove (35), the outer wall of one side of the supporting cover (2) is provided with a first limiting plate (22), the outer wall of one side of the lower end of the supporting cover (2) is provided with a second limiting plate (23), the inner part of the second limiting plate (23) is provided with a receiving groove (24), the outer wall of one side of the second limiting plate (23) is provided with a supporting block (25), the inner part of the supporting block (25) is movably provided with a movable rod (26), the outer wall of one end of the movable rod (26) is provided with a clamping sleeve (27), and the inner part of the clamping sleeve (27) is rotatably provided with a roller (28).

2. The anti-reverse locking escape door lock for rail transit according to claim 1, characterized in that, The inner part of the lock body (1) is provided with a lock core (13), the outer wall of one end of the handle (3) is provided with a connecting piece (31), and the handle (3) is screw-connected between the connecting piece (31) and the lock core (13).

3. The anti-reverse locking escape door lock for rail transit according to claim 1, characterized in that, The outer wall of the supporting cover (2) is provided with circularly-arrayed fasteners (21), and the supporting cover (2) is screw-connected between the fasteners (21) and the buckling plate (12).

4. The anti-reverse locking escape door lock for rail transit according to claim 1, characterized in that, The outer wall of the movable rod (26) is designed in a rectangular shape, the outer wall of the movable rod (26) is provided with springs (29), and the clamping sleeve (27) is elastically connected between the springs (29) and the supporting block (25).

5. The anti-reverse locking escape door lock for rail transit according to claim 1, characterized in that, The size of the limiting rod (34) is smaller than the size of the inner wall of the receiving groove (24), and the limiting rod (34) is located in the receiving groove (24).

6. The anti-reverse locking escape door lock for rail transit according to claim 1, characterized in that, The size of the clamping sleeve (27) is smaller than the size of the clamping groove (35), the clamping sleeve (27) is located in the clamping groove (35), and the roller (28) is in contact with the inner wall of the clamping groove (35).

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