Emergency lock hook unlocking structure for hall door upper sill device in elevator

Abstract

The utility model relates to elevator field especially a kind of emergency lock hook unlocking structure for elevator middle split hall door upper ridge device.A kind of emergency lock hook unlocking structure for elevator middle split hall door upper ridge device, including support, the support clamping groove is inserted on door lock component, support bottom is equipped with recess, recess is clamped on the top plate clamping groove of triangle lock, support upper rear side is equipped with inserting rod, inserting rod front side is equipped with clamping frame, clamping frame bottom is smooth wall, inserting rod is inserted into the clamping hole of top plate, inserting rod is equipped with torsion spring, torsion spring one end is fixed on clamping frame, fixed nut is equipped on triangle lock, fixed nut rear portion is fixed in the elastic sheet piece of horizontal plate.This utility model's beneficial effects are as follows: novel structure, ingenious and simple design, ensure that door cannot be opened during elevator operation, emergency lock hook unlocking component can operate triangle lock control in emergency, ensure safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of elevators, and in particular to an emergency lock hook unlocking structure for the upper sill device of the middle hall door of an elevator. Background Technology

[0002] The landing door sill device is primarily 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 landing door uses a mechanical locking device and an electrical interlocking system to ensure it is locked when closed, preventing accidental opening during elevator operation that could lead to falls or shearing accidents. However, the current design has safety hazards. The landing door opening and closing is driven by the car door opening knife, which is electrically interlocked with the car door; the elevator cannot start if it is not fully closed. When the elevator cannot be opened or maintenance is required, an emergency device needs to be operational, but this emergency device design is complex. Summary of the Invention

[0003] To solve the aforementioned technical problems related to complex design, this utility model provides an emergency lock hook unlocking structure for the upper sill device of the elevator hall door.

[0004] The technical solution of this utility model is as follows: An emergency lock hook unlocking structure for an elevator hall door sill device includes a bracket. The bracket has a slot that engages with an entry lock assembly. The bottom of the bracket has a recess that engages with a slot on the top plate of a triangular lock. The upper rear side of the bracket has a rod, and the front side of the rod has a bracket with a smooth bottom. The rod is inserted into a hole in the top plate. A torsion spring is fitted onto the rod, with one end fixed to the bracket. A fixing nut is fitted onto the triangular lock, and the rear of the fixing nut is fixed to a spring piece in the horizontal plate.

[0005] The spring clip is secured to the horizontal plate, which has a notch to accommodate the triangular lock.

[0006] The card holder head is triangular in shape, and the card holder and the bracket are connected by an inclined surface.

[0007] The technical solution of this utility model has a novel structure and a clever and simple design, which ensures that the door cannot be opened during elevator operation. The emergency lock hook unlocking component can be operated by the triangular lock in an emergency, ensuring safety and reliability. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the triangular lock of this utility model; Figure 3 This is a schematic diagram of the structure of the bracket of this utility model; Figure 4 , 5 1, 6, 7, 8, and 18 are schematic diagrams of the structure of an embodiment of this utility model; Figure 9 This is a structural schematic diagram of the right-side mounting plate wheel assembly; Figure 10 This is a structural schematic diagram of the base plate frame assembly; Figure 11 This is a schematic diagram of the locking hook structure; Figure 12 This is a structural schematic diagram of the secondary contact assembly; Figure 13 This is a schematic diagram of the guide rail structure; Figure 14 This is a structural schematic diagram of the base plate assembly; Figure 15 , 16 This is a structural diagram of the door lock assembly; Figure 17 This is a structural diagram of the door lock assembly in an exploded state. Detailed Implementation

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0010] like Figure 1 , 2 The elevator hall door sill device shown in Figure 3 uses an emergency lock hook unlocking structure, including a bracket 18. The bracket 18 is engaged with the door lock assembly 4 by using a smooth wall to squeeze the inclined wave of the auxiliary lock hook, causing it to rotate and disengage. The bottom of the bracket 18 has a recess 19, which is engaged with the top plate slot of the triangular lock. The upper rear side of the bracket 18 has an insertion rod 20, and the front side of the insertion rod 20 has a bracket 21. The bottom of the bracket 21 is a smooth wall. The insertion rod 20 is inserted into the locking hole of the top plate 13. A torsion spring is sleeved on the insertion rod 20. One end of the torsion spring is fixed to the bracket 21, and a fixing nut is sleeved on the triangular lock. The rear part of the fixing nut is fixed in the spring piece 29 of the horizontal plate. The locking blocks on both sides of the recess 19 are engaged in the slot. The other end of the torsion spring is fixed to the back plate 14 for support.

[0011] The spring clip 29 is secured to the horizontal plate, which has a notch to accommodate the triangular lock.

[0012] The head of the card holder 21 is triangular in shape, and the card holder 21 and the bracket 18 are connected by an inclined surface.

[0013] like Figure 4 , 5Items 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18 are used in conjunction with base plate assembly 1, left hanging plate wheel assembly 2, right hanging plate wheel assembly 3, door lock assembly 4, linkage wire rope assembly 6, switch assembly 8, auxiliary contact assembly 9, counterweight assembly 11, and counterweight wire rope wheel assembly 12. The base plate assembly 1 includes a back plate 14, a top plate 13 at the top of the back plate 14, and a bottom plate 15 at the bottom of the back plate 14. The top plate 13 and the bottom plate 15... The plate 15 is horizontally positioned. Side supports 16 are located at both ends of the base plate assembly 1. An inner mounting plate and an outer mounting plate are located inside the side supports 16. A rope wheel assembly 5 and a guide rail 7 are located 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, 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] 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 an auxiliary 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 limiting rubber 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.

[0017] The counterweight assembly 34 is riveted to the locking hook 32 by rivets; the secondary 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 secondary locking hook is provided with a ramp.

[0018] 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.

[0019] It should be understood that the above description is only a preferred embodiment of the present utility model and is not sufficient to limit the technical solution of the present utility model. For those skilled in the art, within the spirit and principles of the present utility model, additions, subtractions, substitutions, transformations or improvements can be made based on the above description, and all such additions, subtractions, substitutions or improvements should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An emergency lock hook unlocking structure for an elevator hallway door sill device, comprising a bracket (18), characterized in that: The bracket (18) has a recess (19) at the bottom, which is engaged in the slot of the top plate of the triangular lock. The bracket (18) has a rod (20) on the upper rear side and a bracket (21) on the front side of the rod (20). The rod (20) is inserted into the slot of the top plate (13). The rod (20) is fitted with a torsion spring, one end of which 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.

2. The emergency lock hook unlocking structure for the elevator hall door sill device according to claim 1, characterized in that: The spring clip (29) is secured on the horizontal plate, which has a notch to accommodate the triangular lock.

3. The emergency lock hook unlocking structure for the elevator hall door sill device according to claim 1, characterized in that: The bottom of the card holder (21) is a smooth wall, and the bracket (18) is inserted into the door lock assembly (4) through the card slot.

4. The emergency lock hook unlocking structure for the elevator hall door sill device according to claim 1, characterized in that: The head of the card holder (21) is triangular, and the card holder (21) and the bracket (18) are connected by a bevel.

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