Anti-vibration car door lock device and elevator

Abstract

The invention provides an anti-vibration car door lock device and an elevator. The anti-vibration car door lock device comprises a mechanical lock assembly, an electric lock assembly and an anti-vibration assembly. The mechanical lock assembly comprises a lock hook and a lock seat, and the lock hook is rotatably arranged on the door knife base; the electric lock assembly comprises a switch body and a switch base, a contact pin is arranged on the switch body, and the switch body is arranged on the lock hook; the anti-vibration assembly comprises a guide wheel and a blocking component, the guide wheel is rotatably arranged on the lock hook, the blocking component is of a rigid structure and is provided with a horizontal guide face, and when the switch body and the switch base are electrically connected, the guide wheel is located at the bottom of the horizontal guide face. When a relative transverse movement distance is generated between the guide wheel and the horizontal guide surface, the guide wheel leaves the bottom of the horizontal guide surface, and the relative transverse movement distance is larger than the transverse movement distance of the insertion column drawn out of the switch base.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an anti-vibration car door lock device and an elevator. Background Art

[0002] The existing car door lock switch usually uses a mechanical lock and an electrical lock to unlock and lock synchronously. In normal use, the switch is turned on when the lock hook is closed, and the switch is turned off when the lock hook is lifted. The stable closure of the switch depends on the locking torque brought by the weight of the lock hook itself, or with the assistance of spring compression, to ensure the vibration resistance of the entire door lock. Whether the switch is compressed is crucial to the smooth movement of the elevator.

[0003] The integrated door knife of the car door lock in the prior art has an unlocking action driven by a door knife swing rod, and the door knife is connected to the door hanging plate through a base. When the car vibrates violently, someone in the car deliberately hits or hits the car door violently, or the car is seriously overloaded, the door panel undergoes elastic deformation and then recovers. During the recovery process, energy is transmitted from the door panel → door hanging plate → door knife base → door knife swing rod → car door lock. When the amplitude is large enough, the lock hook generates an unlocking torque. In this case, during the operation of the elevator, the car door lock switch may be disconnected for more than a certain period of time, the elevator safety circuit may be disconnected, and the elevator may stop suddenly. When the elevator opens the door from a closed state, the lock hook may jump, and the pin of the switch body may interfere with the switch seat when it is pulled out of the switch seat, resulting in the pin requiring a larger door opening pulling force to be pulled out, causing damage to the structure of the pin. Summary of the invention

[0004] In view of this, one object of the present invention is to provide a vibration-resistant car door lock device, which can prevent the lock hook from generating an unlocking torque due to unexpected vibration energy. Another object of the present invention is to provide an elevator that can effectively resist vibration and whose car door lock can operate stably.

[0005] The technical solution of one aspect of the present invention is achieved as follows:

[0006] A vibration-resistant car door lock device, comprising:

[0007] A mechanical lock assembly, the mechanical lock assembly comprising a lock hook and a lock seat, the lock hook being rotatably arranged on the door knife base to achieve locking / unlocking of the lock hook and the lock seat;

[0008] An electrical lock assembly, the electrical lock assembly comprising a switch body and a switch seat, the switch body being provided with a pin for transversely plugging with the switch seat to achieve electrical conduction, the switch body being arranged on the lock hook;

[0009] The anti-vibration component includes a guide wheel and a blocking member, the guide wheel is rotatably arranged on the lock hook, the blocking member is a rigid structure, and the blocking member is provided with a horizontal guide surface. When the switch body and the switch seat are electrically connected, the guide wheel is located at the bottom of the horizontal guide surface; when a relative lateral movement distance is generated between the guide wheel and the horizontal guide surface, the guide wheel leaves the bottom of the horizontal guide surface, and the relative lateral movement distance is greater than the lateral movement distance of the plug column when it is pulled out from the switch seat.

[0010] Preferably, the blocking member further comprises an inclined guide surface, and the inclined guide surface is located on a side of the horizontal guide surface away from the switch seat.

[0011] Preferably, the blocking member comprises a guide plate, the guide plate comprises a horizontal section and an inclined section, the horizontal guide surface is the bottom surface of the horizontal section, and the inclined guide surface is the bottom surface of the inclined section.

[0012] Preferably, the angle between the inclined guide surface and the horizontal plane is at least 45°.

[0013] Preferably, the blocking member and the switch seat are relatively fixed in position.

[0014] Preferably, the blocking member is arranged on another door hanging plate of the door hanging plate where the door knife base is located.

[0015] Preferably, the blocking member further comprises a vertical mounting plate, the vertical mounting plate is provided with a first strip hole, and the length direction of the first strip hole is arranged vertically.

[0016] Preferably, the guide wheel is rotatably arranged on a connecting frame, and a second strip hole is provided on the connecting frame. The length direction of the second strip hole is arranged horizontally, and the second strip hole is fixed to the locking hook by a bolt assembly.

[0017] Preferably, a rolling shaft is provided on the connecting frame, the guide wheel is rotatably provided on the rolling shaft, and a shaft sleeve is sleeved on the rolling shaft.

[0018] The anti-vibration car door lock device of the present invention adds an anti-vibration component, and utilizes the guide wheel and the blocking member in the anti-vibration component to work together. The blocking member can limit the moving trajectory of the guide wheel, thereby limiting the movement trajectory of the lock hook. When the car door is closed, the rotation range of the lock hook is limited. Regardless of the size of the external force applied, the lock hook cannot be lifted significantly to disconnect the door lock switch, effectively preventing the elevator from accidentally stopping due to external force; it also prevents the switch body's pin from interfering with the switch seat when it is pulled out of the switch seat.

[0019] The beneficial effects of other preferred embodiments of the anti-vibration car door lock device of the present invention are further described in detail in the specific implementation manner.

[0020] The technical solution of another aspect of the present invention is achieved as follows:

[0021] An elevator comprises any one of the above-mentioned anti-vibration car door lock devices; the elevator can improve the stability in the running state through the anti-vibration car door lock device and greatly reduce the probability of accidental disconnection of the car door lock device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 Schematic diagram of the structure of the anti-vibration car door lock device according to the first embodiment of the present invention;

[0024] Figure 2 It is a side view of the cooperation between the guide wheel and the blocking member in the first embodiment of the present invention;

[0025] Figure 3 This is an exploded schematic diagram of the anti-vibration car door lock device according to the first embodiment of the present invention;

[0026] Figure 4 This is a schematic structural diagram of the anti-vibration car door lock device of Embodiment 1 of the present invention being arranged on a door hanging plate;

[0027] Figure 5 Schematic diagram of the structure of the vibration-resistant car door lock device according to the second embodiment of the present invention (the lock seat and the switch seat are not shown);

[0028] Figure 6 This is a schematic structural diagram of an anti-vibration car door lock device according to a second embodiment of the present invention disposed on a door hanging plate.

[0029] In the figure: 100, door knife base; 200, door hanging plate;

[0030] 1. Mechanical lock assembly; 11. Lock hook; 12. Lock seat;

[0031] 2. Electric lock assembly; 21. Switch body; 211. Pin; 22. Switch seat;

[0032] 3. Anti-vibration assembly; 31. Guide wheel; 32. Blocking member; 32a. Horizontal guide surface; 32b. Inclined guide surface; 321. Guide plate; 3211. Horizontal section; 3212. Inclined section; 322. Vertical mounting plate; 3221. First strip hole; 33. Connecting frame; 331. Second strip hole; 34. Rolling shaft; 35. Bushing. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the terms "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Embodiment 1

[0037] like Figure 1-4As shown, an anti-vibration car door lock device of the present embodiment includes a mechanical lock component 1, an electrical lock component 2 and an anti-vibration component 3, the mechanical lock component 1 includes a lock hook 11 and a lock seat 12, the lock hook 11 is rotatably arranged on the door knife base 100 to achieve locking / unlocking of the lock hook 11 and the lock seat 12; the electrical lock component 2 includes a switch body 21 and a switch seat 22, the switch body 21 is provided with a pin 211 for horizontally plugging with the switch seat 22 to achieve electrical conduction, and the switch body 21 is arranged on the lock hook 11; the anti-vibration component 3 includes a guide wheel 31 and a blocking member 32, the guide wheel 31 is rotatably arranged on the lock hook 11, the blocking member 32 is a rigid structure, and the blocking member 32 is provided with a horizontal guide surface 32a, when the switch body 21 is electrically conductive with the switch seat 22, the guide wheel 31 is located at the bottom of the horizontal guide surface 32a; refer to Figure 1 When a relative lateral movement distance L1 is generated between the guide wheel 31 and the horizontal guide surface 32a, the guide wheel 31 leaves the bottom of the horizontal guide surface 32a, and the relative lateral movement distance L1 is greater than the lateral movement distance L2 when the plug is pulled out from the switch seat 22.

[0038] Among them, reference Figure 4 The door knife base 100 is arranged on the door hanging plate 200, and the door hanging plate 200 is connected to the car door. According to the prior art, the door knife base 100 is also provided with components such as a left door knife and a right door knife. These components can drive the lock hook 11 to rotate on the door knife base 100 to achieve unlocking with the lock seat 12. The specific working process of how the lock hook 11 is driven to rotate will not be elaborated here.

[0039] In this embodiment, the blocking member 32 is used to block the top of the guide wheel 31. When the car door is in a closed state, the car door is impacted by external force or the car is severely overloaded, the lock hook 11 generates an unlocking torque and has a lifting action. At this time, the guide wheel 31 conflicts with the horizontal guide surface 32a of the blocking member 32, and the lock hook 11 cannot be lifted to a greater height. Within this range of movement, the pin 211 of the switch body 21 and the switch seat 22 are still effectively in contact and energized, thereby effectively preventing the car door lock device from disconnecting during the normal operation of the elevator, thereby achieving an anti-vibration effect; it also avoids the interference between the pin 211 and the switch seat 22, which causes the pin 211 to require a larger door opening pulling force to pull out, thereby avoiding damage to the structure of the pin 211.

[0040] When the car opens its door in the leveling area, the lock hook 11 is limited by the guide wheel 31 and the blocking member 32, and the lock hook 11 moves horizontally for a short distance. The pin 211 on the switch body 21 is pulled out from the switch seat 22, and the guide wheel 31 is separated from the bottom of the horizontal guide surface 32a. The lock hook 11 can be lifted up, so that the lock hook 11 and the lock seat 12 are unlocked.

[0041] In a preferred embodiment, Figure 2 As shown, in a normal state, there is a small gap between the guide wheel 31 and the horizontal guide surface 32a, so that when the door is opened or closed normally, the guide wheel 31 and the horizontal guide surface 32a do not contact each other, avoiding friction between the two and increasing the load of opening or closing the door; in an abnormal state, that is, when the lock hook 11 is lifted due to external force, the guide wheel 31 can rotate on the lock hook 11, and there is rolling friction between the guide wheel 31 and the horizontal guide surface 32a, avoiding too much load on opening or closing the door.

[0042] For further reference, Figure 1-3 , the blocking member 32 further includes an inclined guide surface 32b, and the inclined guide surface 32b is located on the side of the horizontal guide surface 32a away from the switch seat 22. In this embodiment, during the closing process of the car door, if the transmission structure driving the door lock fails, or the bearing causes the rotation to be not smooth, or the car door is vibrated by external force, the lock hook 11 will eventually reset slowly during the closing process. As it reaches a position close to the end of the door closing, the guide wheel 31 will contact the inclined guide surface 32b of the blocking member 32. Under the combined action of the inclined guide of the inclined guide surface 32b and the horizontal force of the door closing, the lock hook 11 generates a larger locking torque, so that the anti-vibration component 3 can force the lock hook 11 to reset at the set position, avoiding the pin 211 on the switch body 21 from hitting the pin, and ensuring that the electric lock component 2 can be connected without accident.

[0043] For details of the above scheme, please refer to Figure 2 and Figure 3 The blocking member 32 includes a guide plate 321, and the guide plate 321 includes a horizontal section 3211 and an inclined section 3212. The horizontal guide surface 32a is the bottom surface of the horizontal section 3211, and the inclined guide surface 32b is the bottom surface of the inclined section 3212. To ensure that the locking hook 11 can be lifted after the guide wheel 31 is separated from the horizontal guide surface 32a, the angle between the inclined guide surface 32b and the horizontal plane is at least 45°.

[0044] For details of the above scheme, please refer to Figure 2 and Figure 3The blocking member 32 further includes a vertical mounting plate 322, on which a first strip hole 3221 is provided, and the length direction of the first strip hole 3221 is arranged vertically. In this way, it is convenient to adjust the vertical mounting position of the blocking member 32, thereby adjusting the distance of the small gap between the guide wheel 31 and the horizontal guide surface 32a, ensuring that when the lock hook 11 is lifted to the small gap, the pin 211 and the switch seat 22 will not interfere with each other and get stuck.

[0045] In addition, the guide wheel 31 is rotatably mounted on a connecting frame 33, and a second strip hole 331 is provided on the connecting frame 33. The length direction of the second strip hole 331 is arranged in the horizontal direction, and the second strip hole 331 is fixed to the lock hook 11 by a bolt assembly. The second strip installation hole can facilitate the adjustment of the installation position of the connecting frame 33 on the lock hook 11; in addition, a rolling shaft 34 is provided on the connecting frame 33, and the guide wheel 31 is rotatably mounted on the rolling shaft 34. A shaft sleeve 35 is sleeved on the rolling shaft 34. The guide wheel 31 is rigidly arranged to ensure that when the guide wheel 31 and the horizontal guide surface 32a of the blocking member 32 abut against each other, no matter how large or small the external vibration force is, the lock hook 11 cannot be further lifted.

[0046] like Figure 4 As shown, the blocking member 32 and the switch base 22 are relatively fixed in position. Specifically, the blocking member 32 can be directly or indirectly mounted on the upper sill of the car door (not shown) or the mounting bracket (not marked in the figure) of the switch base 22. In this embodiment, the blocking member 32 is fixed in position, and the guide wheel 31 moves with the opening and closing action of a car door.

[0047] Embodiment 2

[0048] refer to Figure 5 and 6 The working principle of the second embodiment is basically the same as that of the first embodiment, except that, in the second embodiment, the blocking member 32 is on the other door hanging plate 200 of the door hanging plate 200 where the door knife base 100 is located; the blocking member 32 and the guide wheel 31 are respectively arranged on the two door hanging plates 200, and the blocking member 32 and the guide wheel 31 move toward or away from each other in a bidirectional manner. The second embodiment provides more options for the installation position of the blocking member 32.

[0049] In addition, an elevator is provided, comprising any one of the above-mentioned anti-vibration car door lock devices; the elevator can improve the stability in the running state through the anti-vibration car door lock device, and greatly reduce the probability of accidental disconnection of the car door lock device. The anti-vibration component ensures that the plug pin and the switch seat are plugged in and out smoothly, which can improve the working stability of the anti-vibration car door lock device, avoid the plug pin from being easily damaged, increase the service life, and reduce the maintenance frequency and cost of the elevator.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration-resistant car door lock device, characterized in that: include: A mechanical lock assembly, the mechanical lock assembly comprising a lock hook and a lock seat, the lock hook being rotatably arranged on the door knife base to achieve locking / unlocking of the lock hook and the lock seat; An electrical lock assembly, the electrical lock assembly includes a switch body and a switch seat, the switch body is provided with a pin for transversely plugging with the switch seat to achieve electrical conduction, and the switch body is arranged on the lock hook; an anti-vibration assembly, the anti-vibration assembly includes a guide wheel and a blocking member, the guide wheel is rotatably arranged on the lock hook, the blocking member is a rigid structure, and the blocking member is provided with a horizontal guide surface, when the switch body and the switch seat are electrically connected, the guide wheel is located at the bottom of the horizontal guide surface; when a relative lateral movement distance is generated between the guide wheel and the horizontal guide surface, the guide wheel leaves the bottom of the horizontal guide surface, and the relative lateral movement distance is greater than the lateral movement distance of the plug column when it is pulled out from the switch seat.

2. The anti-vibration car door lock device according to claim 1, characterized in that: The blocking member further includes an inclined guide surface, and the inclined guide surface is located at a side of the horizontal guide surface away from the switch seat.

3. The anti-vibration car door lock device according to claim 2, characterized in that: The blocking member includes a guide plate, the guide plate includes a horizontal section and an inclined section, the horizontal guide surface is a bottom surface of the horizontal section, and the inclined guide surface is a bottom surface of the inclined section.

4. The anti-vibration car door lock device according to claim 2 or 3, characterized in that: The angle between the inclined guide surface and the horizontal plane is at least 45°.

5. The anti-vibration car door lock device according to claim 3, characterized in that: The blocking member and the switch seat are relatively fixed in position.

6. The anti-vibration car door lock device according to claim 3, characterized in that: The blocking component is arranged on another door hanging plate of the door hanging plate where the door knife base is located.

7. The anti-vibration car door lock device according to claim 5 or 6, characterized in that: The blocking member further comprises a vertical mounting plate, on which a first strip-shaped hole is arranged, and a length direction of the first strip-shaped hole is arranged vertically.

8. The anti-vibration car door lock device according to claim 7, characterized in that: The guide wheel is rotatably arranged on a connecting frame, and a second strip hole is arranged on the connecting frame. The length direction of the second strip hole is arranged in the transverse direction, and the second strip hole is fixed to the locking hook through a bolt assembly.

9. The anti-vibration car door lock device according to claim 8, characterized in that: The connecting frame is provided with a rolling shaft, the guide wheel is rotatably provided on the rolling shaft, and the rolling shaft is sleeved with a shaft sleeve.

10. An elevator, characterized in that: The invention comprises the anti-vibration car door lock device as described in any one of claims 1 to 9.

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