A hall door upper sill device in an elevator

Abstract

This invention relates to the field of elevators, and in particular to a sill-mounting device for a centrally located elevator hall door. The device comprises a base plate assembly, a left hanging plate wheel assembly, a right hanging plate wheel assembly, a door lock assembly, a linkage wire rope assembly, a switch assembly, a secondary contact assembly, an emergency lock hook unlocking assembly, a counterweight assembly, and a counterweight wire rope wheel assembly. The base plate assembly includes a back plate, a top plate at the top of the back plate, and a bottom plate at the bottom of the back plate. The top and bottom plates are horizontally arranged. Side supports are located at both ends of the base plate assembly. An inner mounting plate and an outer mounting plate are located inside the side supports. The inner mounting plate houses the rope wheel assembly. The advantages of this invention are: the elevator door lock hook device ensures that the elevator door remains closed and mechanically locked during operation, preventing accidental opening. This is achieved through the lock hook mechanical components, ensuring that the door cannot be opened during elevator operation. The emergency lock hook unlocking assembly can be operated with a triangular lock in an emergency, ensuring safety and reliability.

Description

Technical Field

[0001] This invention relates to the field of elevators, and in particular to a device for raising the threshold of a hall door in an elevator. Background Technology

[0002] The hall door sill device is mainly used to ensure the safe entry and exit of passengers into and out of the elevator car and to prevent accidental falls. As the outer door of the elevator, the hall door is locked in the closed state through a mechanical locking device and an electrical interlocking system to prevent accidental opening during elevator operation, which could lead to people falling or shearing accidents. The opening and closing of the hall door is driven by the car door opening knife and is electrically interlocked with the car door. The elevator cannot start running if it is not fully closed. The current design has a safety hazard. Summary of the Invention

[0003] To address the aforementioned technical problems that pose safety hazards, this invention provides a device for raising the threshold of a hallway door in an elevator.

[0004] The technical solution of the present invention is as follows: An elevator hallway door sill device includes a base plate assembly, a left hanging plate wheel assembly, a right hanging plate wheel assembly, a door lock assembly, a linkage wire rope assembly, a switch assembly, a secondary contact assembly, an emergency lock hook unlocking assembly, a counterweight assembly, and a counterweight wire rope wheel assembly. The base plate assembly includes a back plate, a top plate at the top of the back plate, and a bottom plate at the bottom of the back plate. The top plate and bottom plate are horizontally positioned. Wire rope fixing brackets are located at both ends of the base plate assembly. Inner mounting plates and outer mounting plates are located inside the wire rope fixing brackets. A rope wheel assembly and a guide rail are located on the inner mounting plate. The guide rail has outward-facing grooves. The left hanging plate wheel assembly is engaged with the guide rail in the grooves of the guide rail via guide wheels a at both ends of the back of the left hanging plate wheel assembly. The right hanging plate wheel assembly is engaged with the guide rail in the grooves of the guide rail via guide wheels b at both ends of the back of the right hanging plate wheel assembly. The linkage wire rope assembly is wound in the grooves of the pulley assemblies at both ends. The two ends of the rope head of the linkage wire rope assembly are fixed to the wire rope fixing bracket on the left hanging plate pulley assembly. The auxiliary contact assembly is fixed to the top plate of the base plate assembly. The switch assembly is fixed to the top plate of the base plate assembly. The counterweight wire rope pulley assembly is fixed to the inner wall of the back plate of the base plate assembly. The counterweight wire rope is wound in the groove of the counterweight wire rope pulley assembly. One end of the rope head in the counterweight assembly is fixed to the fixing bracket in the left hanging plate pulley assembly. The emergency lock hook unlocking assembly is connected to the fixing nut... The mounting holes of the base plate assembly are fixed together. The bracket slot in the emergency lock hook unlocking assembly is inserted into the lock hook plate in the door lock assembly. The door lock assembly is fixed together with the front wall of the right hanging plate wheel assembly. The top left side of the door lock assembly has a socket. The door lock assembly includes a base plate frame assembly and a lock hook. The front side of the base plate frame assembly has a fixed door ball assembly. The lock hook has a movable door ball assembly. The bottom right side of the auxiliary contact assembly has a vertical insert. The insert is inserted into the socket. The bottom of the auxiliary contact assembly has an auxiliary contact. The right side of the left hanging plate wheel assembly has a contact piece for cooperating with the switch assembly.

[0005] The secondary contact assembly is fixed to the top plate of the base plate assembly by flange locking bolts, fish-shaped locking blocks, and nuts. The switch assembly is fixed to the top plate of the base plate assembly by flange locking bolts and nuts. The counterweight wire rope wheel assembly is fixed to the inner wall of the base plate assembly by flange locking bolts and flange locking nuts. The guide rail is fixed to both ends of the base plate assembly by flange locking bolts and flange locking nuts.

[0006] The door lock assembly and the right hanging plate wheel assembly are fixed together by flange locking bolts; the two ends of the rope head of the linkage wire rope assembly are respectively fixed to the two ends of the bracket on the left hanging plate wheel assembly by hexagonal nuts, and the fixed shaft in the linkage wire rope assembly is fixed to the wire rope fixing bracket on the right hanging plate wheel assembly by hexagonal nuts.

[0007] The emergency lock hook unlocking assembly includes a bracket with a recessed opening at the bottom. The recessed opening is engaged with the top plate slot of the triangular lock. A rod is provided on the upper rear side of the bracket, and a bracket is provided on the front side of the rod. The bottom of the bracket is a smooth wall. The rod is inserted into the locking hole of the top plate. A torsion spring is sleeved on the rod, and one end of the torsion spring is fixed to the bracket.

[0008] The door lock assembly includes a base plate frame assembly, a lock hook, a fixed ball assembly, a counterweight assembly, a plug assembly, a secondary lock hook, a connecting pin, a limiting rubber, a self-lubricating bearing, a roller fixing pin, an eccentric fixing pin, and a moving ball assembly. The base plate frame assembly has a mounting bracket at its top, with a mounting cylinder in the middle. The self-lubricating bearing is pressed into the mounting cylinder by hydraulic equipment. The base plate assembly and the lock hook are riveted together by the connecting pin using hydraulic equipment. The connecting pin passes through the mounting ring of the lock hook and the self-lubricating bearing for fixation. A secondary lock hook is located on the inner left side of the lock hook. A left mounting block and a right mounting block are located on the front sides of the mounting bracket. The left mounting block fixes the fixed ball assembly by an eccentric fixing pin. The lower front side of the lock hook fixes the moving ball assembly by a roller fixing pin, with the moving ball assembly located to the left of the right mounting block. A limiting rubber is located at the bottom right side of the lock hook. The counterweight assembly is located on both sides of the mounting cylinder. The left end of the lock hook has a downward-facing mounting position with a contact assembly. The bottom left side of the lock hook is arc-shaped, forming a downward curve.

[0009] The counterweight assembly is riveted to the locking hook with rivets; the secondary locking hook is riveted to the locking hook with rivets; the contact assembly is fixed to the locking hook with bolts; the roller fixing pin is fixed to the locking hook with a nut; the eccentric fixing pin is fixed to the base plate frame assembly with a nut; and the secondary locking hook is provided with a ramp.

[0010] The technical solution of this invention features a novel structure and a clever and simple design. Through the contact coordination and locking of the door lock assembly and the auxiliary contact assembly, the knife arm controls the disconnection of the contact of the door lock assembly and the auxiliary contact assembly, causing the weight of the counterweight assembly to move downwards. This weight is simultaneously transmitted to the fixed bracket of the left hanging plate wheel assembly, thereby driving the left hanging plate wheel assembly to move inwards along the guide rail. The right hanging plate wheel assembly moves inwards through the linkage steel wire rope assembly. The elevator door lock hook device ensures that the elevator door remains closed and mechanically locked during operation to prevent accidental opening. This is the core function of the door lock device, achieved through the lock hook mechanical components. It ensures that the door cannot be opened during elevator operation. The emergency lock hook unlocking assembly can be operated by the triangular lock control in an emergency to ensure safety and reliability. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention in the closed state; Figure 3 This is a schematic diagram of the structure of the present invention in the open state; Figure 4 This is a schematic diagram of the structure of the present invention in its explosive state; Figure 5 This is a structural schematic diagram of the bottomless assembly of the present invention from the front view. Figure 6 This is a schematic diagram of the right-side hanging plate wheel assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the base plate frame assembly of the present invention; Figure 8 This is a schematic diagram of the locking hook structure of the present invention; Figure 9 This is a schematic diagram of the sub-contact assembly of the present invention; Figure 10 This is a schematic diagram of the guide rail structure of the present invention; Figure 11 This is a schematic diagram of the structure of the bracket of the present invention; Figure 12 This is a schematic diagram of the structure of the base plate assembly of the present invention; Figure 13 This is a schematic diagram of the structure of the emergency lock hook unlocking assembly of the present invention; Figure 14 This is a schematic diagram of the triangular lock of the present invention; Figure 15 , 16 This is a schematic diagram of the structure of the door lock assembly of the present invention; Figure 17 This is a schematic diagram of the door lock assembly of the present invention in an exploded state; Figure 18 This is a structural schematic diagram of the bottomless assembly of the present invention from the rear view. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0013] like Figure 1 , 2 As shown in figures 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18, an elevator hall door sill device includes a base plate assembly 1, a left hanging plate wheel assembly 2, a right hanging plate wheel assembly 3, a door lock assembly 4, a linkage wire rope assembly 6, a switch assembly 8, a secondary contact assembly 9, an emergency lock hook unlocking assembly 10, a counterweight assembly 11, and a counterweight wire rope wheel assembly 12. The base plate assembly 1 includes a back plate 14, with a top plate 13 at the top and a bottom plate 14. The system comprises a base plate 15, a top plate 13, and a horizontally arranged base plate 15. Steel wire rope fixing brackets 16 are provided at both ends of the base plate assembly 1. An inner mounting plate and an outer mounting plate are provided inside the steel wire rope fixing brackets 16. A rope wheel assembly 5 and a guide rail 7 are provided on the inner mounting plate. The guide rail 7 has outward-facing grooves. The left hanging plate wheel assembly 2 is engaged with the guide rail 7 via guide wheels a at both ends of the back of the left hanging plate wheel assembly 2, and the right hanging plate wheel assembly 3 is engaged with the guide rail 7 via guide wheels b at both ends of the back of the right hanging plate wheel assembly 3, also in the groove of the guide rail 7. The linkage wire rope assembly 6 is wound in the grooves of the pulley assemblies 5 at both ends. The two ends of the rope head of the linkage wire rope assembly 6 are fixed to the wire rope fixing bracket 16 on the left hanging plate pulley assembly 2. The auxiliary contact assembly 9 is fixed to the top plate 13 of the base plate assembly 1. The switch assembly 8 is fixed to the top plate 13 of the base plate assembly 1. The counterweight wire rope pulley assembly 12 is fixed to the inner wall of the back plate 14 of the base plate assembly 1. The wire rope of the counterweight assembly 11 is wound in the groove of the counterweight wire rope pulley assembly 12. One end of the rope head in the counterweight assembly 11 is fixed to the fixing bracket in the left hanging plate pulley assembly 2. The emergency lock hook unlocking assembly 10 is connected to the base plate assembly 1 by a fixing nut. The mounting holes 17 are fixed together. The bracket slot in the emergency lock hook unlocking assembly 10 is inserted into the lock hook plate 22 in the door lock assembly 4. The door lock assembly 4 is fixed together with the front wall of the right hanging plate wheel assembly 3. The top left side of the door lock assembly 4 is provided with a socket 27. The door lock assembly 4 includes a base plate frame assembly 31 and a lock hook 32. The front side of the base plate frame assembly 31 is provided with a fixed door ball assembly 33. The lock hook 32 is provided with a movable door ball assembly 42. The bottom right side of the auxiliary contact assembly 9 is provided with a vertical insert 26. The insert 26 is inserted into the socket 27. The bottom of the auxiliary contact assembly 9 is provided with an auxiliary contact. The right side of the left hanging plate wheel assembly 2 is provided with a contact piece 28 for cooperating with the switch assembly 8.

[0014] The secondary contact assembly 9 is fixed to the top plate of the base plate assembly 1 by flange locking bolts, fish-shaped locking blocks, and nuts. The switch assembly 8 is fixed to the top plate of the base plate assembly 1 by flange locking bolts and nuts. The counterweight wire rope wheel assembly 12 is fixed to the inner wall of the base plate assembly 1 by flange locking bolts and flange locking nuts. The guide rail 7 is fixed to both ends of the base plate assembly 1 by flange locking bolts and flange locking nuts.

[0015] The door lock assembly 4 and the right hanging plate wheel assembly 3 are fixed together by flange locking bolts; the two ends of the rope head of the linkage wire rope assembly 6 are respectively fixed to the two ends of the bracket on the left hanging plate wheel assembly 2 by hexagonal nuts, and the fixed shaft in the linkage wire rope assembly 6 is fixed to the wire rope fixing bracket on the right hanging plate wheel assembly 3 by hexagonal nuts.

[0016] The emergency lock hook unlocking assembly 10 includes a bracket 18. The bottom of the bracket 18 has a recess 19 that engages with the top plate slot of the triangular lock. A rod 20 is located on the upper rear side of the bracket 18, and a bracket 21 is located on the front side of the rod 20. The bottom of the bracket 21 has a smooth wall. The rod 20 is inserted into a locking hole in the top plate 13. A torsion spring is fitted onto the rod 20, with one end fixed to the bracket 21. The other end of the torsion spring is fixed to the back plate 14 for support.

[0017] Door lock assembly 4 includes a fixed ball assembly 33, a counterweight assembly 34, a plug assembly 35, a secondary lock hook 36, a connecting pin 7, a limiting rubber 38, a self-lubricating bearing 39, a roller fixing pin 40, an eccentric fixing pin 41, and a moving ball assembly 42. The top of the base plate frame assembly 31 is equipped with a mounting bracket 22, and the mounting bracket 22 has a mounting cylinder 23 in the middle. The self-lubricating bearing 39 is pressed into the mounting cylinder 23 by a hydraulic device. The base plate frame assembly 31 and the lock hook 32 are riveted together by a connecting pin 37 using a hydraulic device. The connecting pin 37 passes through the mounting ring 25 of the lock hook 32 and the self-lubricating bearing 39 for fixation. The locking hook 32 has a secondary locking hook 36 on the inner left side. The mounting bracket 22 has a left mounting block and a right mounting block on both sides of the front. The left mounting block fixes the ball assembly 33 by an eccentric fixing pin 41. The lower front side of the locking hook 32 fixes the moving ball assembly 12 by a roller fixing pin 40. The moving ball assembly 12 is located on the left side of the right mounting block. The bottom right side of the locking hook 32 has a counterweight assembly 38. The counterweight assembly 34 is set on both sides of the mounting cylinder 23. The left end of the locking hook 32 has a downward-facing mounting position. The mounting position has a contact assembly 35. The bottom left side of the locking hook 32 is arc-shaped and curves downward. The inner side plate of the base plate assembly 31 is square and relatively short. It has three mounting holes at the bottom for easy three-point positioning and fixing. The door lock assembly can not only limit the rotation range of the swing, but also make it easy to adjust the load. It has a secondary lock hook to cooperate with the emergency lock hook to complete the unlocking assembly. The disengagement of the socket 27 and the insert 26 is convenient for emergency or maintenance. The upper part of the left hanging plate wheel assembly 2 and the right hanging plate wheel assembly 3 is tilted to make room.

[0018] The limiting rubbers 34 on both sides of the mounting bracket 22 are riveted to the locking hook 32 by rivets; the auxiliary locking hook 36 is riveted to the locking hook 32 by rivets; the contact assembly 35 is fixed to the locking hook 32 by bolts; the roller fixing pin 40 is fixed to the locking hook 32 by nuts; the eccentric fixing pin 41 is fixed to the base plate frame assembly 31 by nuts; and the auxiliary locking hook is provided with a ramp.

[0019] The landing door sill device is fixed to the corresponding elevator landing by a fixed bracket and expansion bolts. When someone in the elevator car presses the button for the corresponding floor, the elevator car will reach that floor. After the car stops, the elevator door knife arm will open, clamping the door ball in the door lock assembly 4, causing the lock hook to fall. The contact on the lock hook will disconnect from the switch in the auxiliary contact assembly 9. Then, the motor on the elevator car door will rotate, and the steel cable on the elevator car door will drive the door knife to move. The drag force of the door knife will be transmitted to the right hanging plate wheel assembly 3 through the door lock assembly 4. The guide wheel on the right hanging plate wheel assembly 3 will roll on the guide rail 7 to one end, and the linkage steel cable assembly 6 will drive the left hanging plate wheel assembly 2 to the other end. At the same time, the plug assembly on the left hanging plate wheel assembly 2 will disconnect from the switch assembly 8 mounted on the base plate assembly 1. The fixed bracket on the left hanging plate wheel assembly 2 will drive the counterweight assembly 11 to move upward and the counterweight steel cable wheel assembly 12 to rotate. When the left and right hanging wheel assemblies 2 and 3 reach a certain position, the elevator hall door opens fully. When someone inside the car presses the close button or no one outside presses the call button within a certain time, the elevator door knife closes, the force acting on the door ball of the door lock assembly 4 disappears, and the lock hook on the door lock assembly 4 lifts. At the same time, the weight of the counterweight assembly 11 moves downward and is transmitted to the fixed bracket of the left hanging wheel assembly 2, thereby driving the left hanging wheel assembly 2 to move inward on the guide rail 7, and the right hanging wheel assembly 3 to move inward through the linkage wire rope assembly 6. When the contact assembly on the left hanging wheel assembly 2 is fully connected to the switch assembly 8 on the base plate assembly 1, the limit device on the base plate assembly stops, and the left and right hanging wheel assemblies 2 and 3 stop moving. At the same time, the plug assembly on the door lock assembly 4 is also fully in contact with the auxiliary contact assembly 9, the circuit is fully connected, and the elevator car moves up and down after receiving the command. When the elevator malfunctions and the door cannot be opened normally, the emergency lock hook unlocking assembly 10 is used from the outside to open the upper sill device of the elevator hall door. The elevator door lock hook device ensures that the elevator door remains closed and mechanically locked during operation to prevent accidental opening. This is the core function of the door lock device, achieved through the lock hook mechanical components, ensuring that the door cannot be opened during elevator operation. When the door is not fully locked, the door lock device will prevent the elevator from running by disconnecting the control circuit, which is part of the safety interlocking mechanism. This function ensures that the elevator will not start when the door is not closed tightly, avoiding accidents caused by passengers accidentally pressing the door opening button or system malfunctions during operation. When someone outside the elevator presses the call button, the elevator car will move to the corresponding floor and the elevator door knife will open. The elevator door knife arm clamps the fixed door ball assembly 33 and the moving door ball assembly 42 on the lock hook device respectively. The moving door ball assembly 42 drives the lock hook 32 to rotate, and the lock hook 32 is raised. When the lock hook 32 contacts the limiting rubber 38 on one end of the base plate assembly 31, it stops rotating.The plug assembly 35 on the locking hook is completely disengaged from the secondary contact mounted on the door head base plate, and simultaneously the secondary locking hook 36 is completely disengaged from the emergency locking hook unlocking assembly mounted on the door head base plate. The bracket and the secondary locking hook 36 are disengaged from the ramp, and the elevator control circuit is completely disconnected. The elevator door slowly opens under the drive of the wire rope. After the elevator door closes, the elevator door knife closes, and the locking hook 32 returns to a horizontal state under the weight of the counterweight assembly 34. The contact assembly 35 is fully in contact with the secondary contact assembly mounted on the door head base plate, and simultaneously the secondary locking hook 36 is fully hooked with the emergency unlocking device mounted on the door head base plate. The elevator control circuit is activated, and the elevator car can move up and down.

Claims

1. An elevator hall door sill device, comprising a base plate assembly (1), a left hanging plate wheel assembly (2), a right hanging plate wheel assembly (3), a door lock assembly (4), a linkage wire rope assembly (6), a switch assembly (8), a secondary contact assembly (9), an emergency lock hook unlocking assembly (10), a counterweight assembly (11), and a counterweight wire rope wheel assembly (12), characterized in that: The base plate assembly (1) includes a back plate (14), a top plate (13) at the top of the back plate (14), and a base plate (15) at the bottom of the back plate (14). The top plate (13) and the base plate (15) are horizontally arranged. The base plate assembly (1) has wire rope fixing brackets (16) at both ends. The wire rope fixing brackets (16) have an inner mounting plate and an outer mounting plate on their inner sides. The inner mounting plate has a rope wheel assembly (5) and a guide rail (7). The guide rail (7) has outward sliding grooves. The left hanging plate wheel assembly (2) and the guide rail (7) are engaged in the sliding groove of the guide rail (7) through the guide wheels a at both ends of the back of the left hanging plate wheel assembly (2). The right hanging plate wheel assembly (3) and the guide rail (7) are engaged in the sliding groove of the guide rail (7) through the guide wheels b at both ends of the back of the right hanging plate wheel assembly (3). The linkage wire rope assembly (6) is wound in the groove of the pulley assembly (5) at both ends. The two ends of the rope head of the linkage wire rope assembly (6) are fixed on the wire rope fixing bracket (16) on the left hanging plate wheel assembly (2). The auxiliary contact assembly (9) is fixed on the top plate (13) of the base plate assembly (1). The switch assembly (8) is fixed on the top plate (13) of the base plate assembly (1). The counterweight wire rope wheel assembly (12) is fixed on the inner wall of the back plate (14) of the base plate assembly (1). The wire rope of the counterweight assembly (11) is wound in the groove of the counterweight wire rope wheel assembly (12). One end of the rope head in the counterweight assembly (11) is fixed together with the fixing bracket in the left hanging plate wheel assembly (2). The emergency lock hook unlocking assembly (10) is connected to the base plate assembly (1) by a fixing nut. The mounting holes (17) of the door lock assembly (4) are fixed together. The bracket slot in the emergency lock hook unlocking assembly (10) is inserted into the door lock assembly (4). The door lock assembly (4) is fixed together with the front wall of the right hanging plate wheel assembly (3). The door lock assembly (4) has a socket (27) on the top left side. The door lock assembly (4) includes a base plate frame assembly (31) and a lock hook (32). The base plate frame assembly (31) has a fixed door ball assembly (33) on the front side. The lock hook (32) has a movable door ball assembly (42). The auxiliary contact assembly (9) has a vertical insert (26) at the bottom right side. The insert (26) is inserted into the socket (27). The auxiliary contact assembly (9) has an auxiliary contact at the bottom. The left hanging plate wheel assembly (2) has a contact piece (28) on the right side for cooperating with the switch assembly (8).

2. The elevator hall door sill device according to claim 1, characterized in that: The secondary contact assembly (9) is fixed to the top plate of the base plate assembly (1) by flange locking bolts and nuts. The switch assembly (8) is fixed to the top plate of the base plate assembly (1) by flange locking bolts and nuts. The counterweight wire rope wheel assembly (12) is fixed to the inner wall of the base plate assembly (1) by flange locking bolts and flange locking nuts. The guide rail (7) is fixed to both ends of the base plate assembly (1) by flange locking bolts and flange locking nuts.

3. The elevator hall door sill device according to claim 1, characterized in that: The door lock assembly (4) and the right hanging plate wheel assembly (3) are fixed together by flange locking bolts; the two ends of the rope head of the linkage wire rope assembly (6) are respectively fixed to the two ends of the bracket on the left hanging plate wheel assembly (2) by hexagonal nuts, and the fixed shaft in the linkage wire rope assembly (6) is fixed to the wire rope fixing bracket on the right hanging plate wheel assembly (3) by hexagonal nuts.

4. The elevator hall door sill device according to claim 1, characterized in that: The emergency lock hook unlocking assembly (10) includes a bracket (18), the bottom of the bracket (18) is provided with a recess (19), the recess (19) is locked in the top plate slot of the triangular lock, the upper rear side of the bracket (18) is provided with a rod (20), the front side of the rod (20) is provided with a bracket (21), the bottom of the bracket (21) is a smooth wall, the rod (20) is inserted into the card hole of the top plate (13), the rod (20) is fitted with a torsion spring, one end of the torsion spring is fixed on the bracket (21), the fixing nut is fitted on the triangular lock, and the rear part of the fixing nut is fixed in the spring piece (29) of the horizontal plate.

5. The elevator hall door sill device according to claim 1, characterized in that: The door lock assembly (4) includes a fixed ball assembly (33), a counterweight assembly (34), a plug assembly (35), a secondary lock hook (36), a connecting pin (7), a limiting rubber (38), a self-lubricating bearing (39), a roller fixing pin (40), an eccentric fixing pin (41), and a moving ball assembly (42). The top of the base plate assembly (31) is provided with a mounting bracket (22), and the mounting bracket (22) is provided with a mounting cylinder (23) in the middle. The self-lubricating bearing (39) is pressed into the mounting cylinder (23) by a hydraulic device. The base plate assembly (31) and the lock hook (32) are riveted together by a connecting pin (37) on a hydraulic device. The connecting pin (37) passes through the mounting ring (25) and the self-lubricating bearing (39) of the lock hook (32). The sliding bearing (39) is fixed, and the inner side of the left side of the locking hook (32) is provided with a secondary locking hook (36). The front sides of the mounting bracket (22) are provided with a left mounting block and a right mounting block. The left mounting block is fixed with an eccentric fixing pin (41) to fix the fixed ball assembly (33). The lower front side of the locking hook (32) is fixed with a roller fixing pin (40) to fix the moving ball assembly (12). The moving ball assembly (12) is located on the left side of the right mounting block. The bottom right side of the locking hook (32) is provided with a counterweight assembly (38). The counterweight assembly (34) is set on both sides of the mounting cylinder (23). The left end of the locking hook (32) is provided with a downward-facing mounting position. The mounting position is provided with a contact assembly (35). The bottom left side of the locking hook (32) is arc-shaped and has a downward curve.

6. The elevator hallway door sill device according to claim 5, characterized in that: The limiting rubbers (34) on both sides of the mounting bracket (22) are riveted together with the locking hook (32) by rivets; the secondary locking hook (36) is riveted together with the locking hook (32) by rivets; the contact assembly (35) is fixed together with the locking hook (32) by bolts; the roller fixing pin (40) is fixed on the locking hook (32) by nuts; the eccentric fixing pin (41) is fixed on the base plate frame assembly (31) by nuts; and the secondary locking hook (36) is provided with a ramp.

Images