Elevator silent car door lock device and elevator

Abstract

The application belongs to the elevator technical field, and provides an elevator mute car door lock device, which comprises a door lock mechanism, the door lock mechanism is arranged on the door blade mechanism, and the door lock mechanism comprises a mechanical lock assembly and an electrical lock assembly; the mechanical lock assembly comprises a lock hook and a lock seat matched with the lock hook; the lock seat is arranged at the end of the lock hook; the electrical lock assembly comprises a supporting rod, a switch body and a switch seat; the supporting rod is connected with the lock hook and extends outward, and the switch body is arranged at the end of the supporting rod. The application separately arranges the connecting rod without hard connection with the swing rod and hard connection with the lock hook, so that the force generated by the connecting rod in the process of normal opening of the car door is not transmitted to the landing door roller through the swing rod, a larger sound is avoided, and the riding experience of the customer is improved.

Description

Technical Field

[0001] This invention belongs to the field of elevator technology, specifically relating to an elevator silent car door lock device and an elevator. Background Technology

[0002] In daily life, people often need to take elevators to different floors. Elevator doors typically have a door locking mechanism to secure them. This mechanism usually includes a mechanical lock assembly and an electrical lock assembly. Normally, the electrical lock assembly is integrated with the mechanical lock assembly, meaning it moves along with it. This makes the electrical lock assembly prone to damage, affecting the elevator's operation. Furthermore, during each movement, the locking hook descends, and the door rollers collide with the swing arm, producing loud noise that disturbs passengers and negatively impacts their riding experience. Summary of the Invention

[0003] In order to overcome the problems existing in the prior art, the purpose of this invention is to provide an elevator silent car door lock device and the elevator thereof.

[0004] The technical solution adopted by this invention to solve its technical problem is: an elevator silent car door lock device, comprising: a door knife mechanism for mounting on the upper sill of the car door and capable of providing lateral driving force; a door lock mechanism disposed on the door knife mechanism, and the door lock mechanism including a mechanical lock assembly and an electrical lock assembly; the mechanical lock assembly including a lock hook and a lock seat cooperating with the lock hook; the lock seat is disposed at the end of the lock hook, and the end of the lock hook can cooperate with or separate from the lock seat; the electrical lock assembly including a support rod, a switch body and a switch seat; the support rod is connected to the lock hook and extends outward, the switch body is disposed at the end of the support rod, and the switch body can cooperate with or separate from the switch seat.

[0005] Its main working principle is that when the car door needs to be opened, the door knife mechanism moves along the upper sill of the car door, thereby driving the door lock mechanism to move. During the movement, the hook lock and lock seat in the mechanical lock assembly will separate from each other, and the switch body and switch seat in the electrical lock assembly will separate from each other, thereby realizing the unlocking of the door lock mechanism.

[0006] Preferably, a connecting seat is provided below the lock hook, and the connecting seat extends outward; a hanging rod is provided on the door knife mechanism, and the front end of the hanging rod extends above the connecting seat. The connecting seat and the front end of the hanging rod are connected by a first elastic element. During the movement and rotation of the lock hook, the connecting seat can compress or unfold the first elastic element.

[0007] When the locking hook is in the extended state, the locking hook is in a horizontal position.

[0008] Preferably, the connecting seat is provided with a guide rod, one end of which is connected to the connecting seat, and the other end of which passes through the front end of the lifting rod. A limiting block is provided above the lifting rod, and the limiting block can be pressed tightly against the lifting rod.

[0009] Preferably, a vibration absorber is provided below the connecting seat, and when the locking hook is in a horizontal state, the connecting seat and the vibration absorber are in close contact with each other;

[0010] The bottom of the connecting seat is provided with a locking block, and the vibration absorber is provided with a slot that engages with the locking block.

[0011] Preferably, it also includes a fixing block and a connecting rod for actuating the locking hook;

[0012] The fixing block is fixedly connected to the upper sill of the car door, the connecting rod is horizontally arranged and guides the fixing block, and the front end of the connecting rod is provided with a lever to move the locking hook.

[0013] Preferably, the connecting rod has a protrusion on the side facing the switch body, and a second elastic element for resetting the connecting rod is provided between the protrusion and the fixing block.

[0014] Preferably, the door knife mechanism includes a second swing arm, the second swing arm is provided with a pusher that can be tightly engaged with the connecting rod, and the end of the connecting rod is provided with a stop that is tightly engaged with the pusher;

[0015] In the emergency opening state, the pusher pushes the stop, thereby causing the linkage to move in the opposite direction to the switch body;

[0016] The upper end of the stop is provided with a ramp. In the emergency door opening state and the door lock mechanism is in the unlocked state, the pusher moves away from the stop along the ramp.

[0017] Preferably, the door knife mechanism further includes a first swing arm, a base plate, a first rotating arm, a landing door moving roller, a second rotating arm, and a landing door stationary roller;

[0018] The first swing arm and the second swing arm are respectively connected to the base plate through the first rotating arm and the second rotating arm. The floor door moving roller and the stationary roller are respectively disposed between the first swing arm and the second swing arm. The first swing arm and the second swing arm are provided with vibration damping pads on the side facing the floor door moving roller and the stationary roller.

[0019] Preferably, the door knife mechanism is provided with a retaining shaft structure, which can cooperate with the rotating shaft of the second rotating arm.

[0020] An elevator, characterized in that it includes an elevator silent car door lock device as described in any of the preceding claims.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. By setting the connecting rod separately without rigidly connecting it to the swing arm or the lock hook, the force generated by the connecting rod during the normal opening of the car door will not be transmitted to the landing door roller through the swing arm, thus avoiding loud noise and improving the customer's riding experience.

[0023] 2. By installing a support rod extending to the outside of the lock hook and mounting the switch body at the end of the support rod, the switch body and the lock hook are separated. During the unlocking or locking operation, the switch body and the switch base will not collide, thus improving the service life of the electrical lock assembly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A simplified diagram of the elevator car door;

[0026] Figure 2 This is the door lock device for the elevator's silent car door;

[0027] Figure 3 for Figure 2 The door lock mechanism of the elevator silent car door lock device is shown.

[0028] Figure 4 for Figure 3 Side view of the door lock mechanism shown;

[0029] Figure 5 A schematic diagram showing the electrical lock assembly of the elevator's silent car door lock device unlocked under normal conditions;

[0030] Figure 6 A schematic diagram showing the mechanical lock assembly of the elevator's silent car door lock device unlocked under normal conditions;

[0031] Figure 7 This diagram illustrates the elevator's silent car door lock device under normal conditions, where the stationary roller and moving roller of the landing door are fully clamped by the door knife swing arm.

[0032] Figure 8 A schematic diagram showing the mechanical and electrical lock components of the elevator's silent car door lock device being disengaged in an emergency.

[0033] Figure 9 A schematic diagram showing the elevator's silent car door lock device moving its pusher to the ramp in an emergency situation;

[0034] 10. Door knife mechanism; 11. Base plate; 12. First rotating arm; 13. First swing arm; 14. Pressing roller; 15. Second rotating arm; 16. Second swing arm; 160. Pushing component; 17. Connecting rod; 170. Fixing block; 171. Pulley; 172. Protrusion; 173. Baffle; 174. Ramp; 18. Shaft locking structure; 19. Vibration damping pad; 20. Door lock mechanism; 21. Mechanical lock assembly; 211. Lock hook; 212. Lock seat; 213. Connecting seat; 214. Hanging rod; 215. First elastic element; 216. Guide rod; 217. Limiting block; 218. Vibration absorber; 219. Locking block; 22. Electric lock assembly; 220. Support rod; 221. Switch body; 222. Switch seat; 30. Landing door stationary roller; 40. Landing door moving roller; 50. Motor; 60. Belt; 70. Tensioning device; 80. Connecting plate; 90. Right door hanging plate; 100. Left door hanging plate. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0037] like Figure 1 and Figure 2As shown, specifically, the car door lock device includes: a door knife mechanism 10, which is installed on the upper sill of the car door and can provide lateral driving force; and a door lock mechanism 20, which includes a mechanical lock assembly 21 and an electrical lock assembly 22. The mechanical lock assembly includes a lock hook and a lock seat that cooperates with the lock hook. The lock seat is located at the end of the lock hook, and the end of the lock hook can cooperate with or separate from the lock seat. The electrical lock assembly includes a support rod, a switch body, and a switch seat. The support rod is connected to the lock hook and extends outward. The switch body is located at the end of the support rod, and the switch body can cooperate with or separate from the switch seat.

[0038] In this technical solution, the aforementioned car door lock device is applied to the elevator car to improve the reliability of car door opening and closing. Specifically, the door knife mechanism 10 is connected to the drive mechanism preset on the upper sill of the car door, thereby providing lateral driving force. To ensure the safe and reliable operation of the elevator car door opening, the lock hook 211 will move a short distance laterally along with the door knife mechanism before being lifted. During this process, the electrical lock assembly 22 will move laterally simultaneously. However, since the switch body 221 can contact or separate from the switch seat 222 in the lateral direction, there will be no mutual sliding friction between the switch seat 222 and the switch body 221 during this movement. Therefore, the switch body 221 will not suffer damage such as squeezing deformation or scratches. Subsequently, when the lock hook 211 is lifted upward, the lock hook 211 separates from the lock seat 212, and the switch body 221 will move away from the switch seat 22 along with the rotation of the support rod. Conversely, when closing the door, since the support rod separates the switch body 221 from the lock hook 211, and the switch body 221 is at the top of the lock hook, the switch body 221 will not collide with the switch base 222 along with the lock hook 211, thus improving the service life and performance of the car door lock device.

[0039] In the above scheme, a drive mechanism is pre-installed on the upper sill of the car door. This drive mechanism includes components such as a motor 50, a belt 60, a tensioning device 70, a connecting plate 80, a right door hanging plate 90, and a left door hanging plate 100. The tensioning device 70 is used to tension the belt 60 to prevent it from slack and slipping. The motor 50 drives the belt 60 to rotate and moves the connecting plate 80. Since the connecting plate 80 is connected to the right door hanging plate 90 and the left door hanging plate 100, the right door plate connected to the right door hanging plate 90 and the left door plate connected to the left door hanging plate 100 can move synchronously to both sides to complete the car door opening action. Since the door knife mechanism 10 is fixed to the left door hanging plate 100 by bolts, it can move synchronously and provide lateral driving force. In addition, a guide rail is also provided on the upper sill of the car door, and the door knife mechanism 10 can move smoothly along the preset path of the guide rail, thereby improving the reliability and accuracy of the car door opening.

[0040] Please continue reading. Figures 1-4Furthermore, in an optional embodiment, the door knife mechanism 10 includes a base plate 11 that can move laterally along the upper sill of the car door, a first rotating arm 12 disposed on the base plate 11, and a first swing rod 13 that is rotatably connected to the first rotating arm 12 and can move laterally. The first swing rod 13 can drive and cooperate with the landing door moving roller 40. The mechanical lock assembly 21 also includes a rotating shaft disposed on the base plate 11, a lock hook 211 that is rotatably disposed on the rotating shaft, and a pressing roller 14 that is disposed on the lock hook 211, the pressing roller 14 being able to abut against the first swing rod 13. The door lock mechanism 20 also includes a connecting seat 213 disposed below the lock hook 211, the connecting seat 213 extending outward; the door knife mechanism 10 is provided with a hanging rod 214, the front end of the hanging rod 214 extending above the connecting seat 213, the connecting seat 213 and the front end of the hanging rod 214 are connected by a first elastic member 215, during the movement of the lock seat 212, the connecting seat 213 can compress or unfold the first elastic member 215; when the lock hook 211 is in the unfolded state, the lock hook 211 is in a horizontal position, and the first elastic member 215 limits the lock hook 211.

[0041] In addition, the connecting seat 213 is provided with a guide rod 216. One end of the guide rod 216 is connected to the connecting seat 213, and the other end of the guide rod 216 passes through the front end of the lifting rod 214. A limiting block 217 is provided above the lifting rod 214. The limiting block 217 can be pressed against the lifting rod 214. Therefore, the locking hook 211 swings along the guide rod 216 through the cooperation of the connecting seat 213 and the guide rod 216. In order to prevent the guide rod 216 from falling off during the movement, the limiting block 217 is installed above the guide rod 216 for limiting.

[0042] Furthermore, to reduce impact during the descent of the locking hook 211, a vibration absorber 218 is provided below the connecting seat 213. When the locking hook 211 is in a horizontal state, the connecting seat 213 and the vibration absorber 218 are fitted and fixed together, and the vibration absorber 218 will not move during operation. The bottom of the connecting seat 213 is provided with a locking block 219, and the vibration absorber 218 is provided with a locking groove that engages with the locking block 219. When the locking hook 211 falls completely, the locking block 219 will engage in the locking groove, which serves to absorb vibration and buffer, and also serves to limit the movement.

[0043] like Figure 2As shown, firstly, when the car door is fully closed, the car door lock device is in a locked state. At this time, the lock hook 211 is in a horizontal position under the action of the first elastic element and its own weight, and the lock hook 211 engages with the lock seat 212 to achieve mechanical locking. At the same time, the pressure roller 14 on the lock hook 211 abuts against the first swing rod 13 (i.e., there is a zero-gap fit between the two). Under the action of the elastic element and its own weight of the lock hook 211, the support rod pushes the switch body 221 into the switch seat 222 and achieves electrical conduction. At this time, the front end of the lock hook 211 has a meshing gap A and a meshing gap B in the horizontal and vertical directions, respectively, while the switch body 221 is inserted into the switch seat 222 with a meshing gap C.

[0044] Optionally, the first elastic element can be any one of a spring, a sheet, or a rubber block.

[0045] Please continue reading. Figures 5-7 In addition, the door knife mechanism 10 also includes a second rotating arm 15 disposed on the base plate 11, a second swing arm 16 rotatably connected to the second rotating arm 15 and capable of lateral movement, and a connecting rod 17 rotatably connected to the second swing arm 16. The lever 171 at the front end of the connecting rod 17 is also rotatably driven connected to the lock hook 211. When the elevator is leveled, the process of the motor driving the car door to open is as follows: During normal operation, the elevator car enters the leveling area, and the stationary roller 30 and the moving roller 40 on the side of the landing door enter the areas of the second swing arm 16 and the first swing arm 13 of the door knife mechanism 10, respectively. At this time, the distance between the stationary roller 30 and the moving roller 40 is set to T2, and the distance between the moving roller 40 and the first swing arm 13 is T1; where C < T1 < A. The motor 50 drives the belt 60 to rotate, so that the left door hanging plate 100 moves to the left to open the door, and the left door hanging plate 100 can synchronously drive the door knife mechanism 10 fixed on it to move to the left. During the leftward movement, the switch body 221 first moves laterally to the left, disengaging from the switch base 222 (because the gap C is the smallest, electrical unlocking occurs first); then, the first swing arm 13 gradually contacts the landing door moving roller 40, causing the lock hook 211 to lift and disengage from the lock base 212, achieving mechanical unlocking; that is, during unlocking, electrical unlocking is completed first, followed by mechanical unlocking. Afterward, the car door continues to move to the left, and the reaction force of the first swing arm 13 causes the landing door moving roller 40 to move towards the landing door stationary roller 30, thereby unlocking the landing door lock, and finally, the car door drives the landing door to fully open. When closing, the car door performs the reverse action steps of the above process. Simply put: the lock hook 211 first falls and engages with the lock base 212 to achieve mechanical locking, and then the switch body 221 inserts into the switch base 222 to achieve electrical locking. During the opening process, since the connecting rod 17 and the second swing rod 16 are separate and not rigidly connected, the weight of the connecting rod 17 will not be superimposed on the door wheel 40 every time the door is opened during the clockwise descent of the second swing rod 16 to contact the door wheel 40, thus avoiding a large impact sound.

[0046] When the elevator car reaches the landing area and a power outage or motor failure occurs, passengers inside the car are unable to save themselves and require rescue from outside the hall. For example... Figures 8-9 At this time, the landing door moving roller 40 and landing door stationary roller 30 on the landing door side enter the working areas of the second swing arm 16 and the first swing arm 13 of the door knife mechanism 10, respectively. Rescuers use a triangular key outside the hall to open the landing door. The landing door moving roller 40 moves to the left of the landing door stationary roller 30 to eliminate gap T2. The landing door stationary roller 30 continues to move to the left, hitting the second swing arm 16 to eliminate gap T3. The second swing arm 16 rotates counterclockwise upward through the second rotating arm 15, and at the same time drives the connecting rod 17 to flip, thereby pulling the lock hook 211 to rotate and lift. Specifically, the second swing arm 16 is provided with a pusher 160, which can be a roller or an arc-shaped push block. During the continuous upward movement of the second swing arm 16, the pusher 160 and the end of the connecting rod 17 press against each other and push the push rod in the opposite direction to the switch body 221. Then, the toggle block 171 on the connecting rod 17 toggle the hook lock, thereby lifting the hook lock. During this process, the switch body 221 slides directly off the switch base 222, and electrical unlocking and mechanical unlocking are performed simultaneously. During this process, the connecting rod 17 will collide with the second swing rod 16, but since it is an emergency rescue process, the noise generated by the connecting rod 17 and the second swing rod 16 during this process does not need to be paid much attention to. It is only necessary to quickly unlock and open the car door and safely rescue the personnel.

[0047] Of course, if the push block keeps pressing against the stop edge, the car door will not be able to open due to the interference of the push block after the door lock mechanism is unlocked. Therefore, a ramp 174 is provided at the upper end of the stop edge. In the emergency door opening state and the door lock mechanism 20 is in the unlocked state, the push member 160 moves away from the stop edge along the ramp 174, so that the car door can be opened.

[0048] In other alternative embodiments, the connecting rod has a protrusion on the side facing the switch body, and a second elastic element for resetting the connecting rod is provided between the protrusion and the fixing block.

[0049] In other optional embodiments, the first swing arm 13 and the second swing arm 16 are respectively connected to the base plate through the first rotating arm 12 and the second rotating arm 15. The landing door moving wheel 40 and the landing door stationary wheel 30 are respectively provided on one side of the first swing arm 13 and the second swing arm 16. The side of the first swing arm 13 and the second swing arm 16 facing the landing door moving wheel 40 and the landing door stationary wheel 30 is provided with a vibration absorbing pad 19.

[0050] By equipping the elevator with this car door lock device, the elevator can open and close the doors normally, greatly improving its performance and reliability. The door knife mechanism 10 is equipped with a retaining shaft structure 18, which can cooperate with the rotating shaft of the second rotating arm 15. When the car door is open normally, as the second rotating arm 15 and the second swing arm 16 descend clockwise, the limiting point of the second swing arm 16 will impact the door knife base plate 11. Therefore, the retaining shaft structure 18 provides cushioning, extending the service life of the components and improving the passenger riding experience.

[0051] By combining the aforementioned linkage not being rigidly connected to the second swing arm, the vibration-absorbing pads 19 on the first swing arm 13 and the second swing arm 16, the locking shaft structure 18 that cooperates with the second swing arm 16, and the vibration-absorbing structure with the lower limit of the lock hook 211, the car door lock is finally made silent.

[0052] On the other hand, this application also provides an elevator that includes the car door locking device as described above.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A silent elevator car door lock device, characterized in that, include: Door knife mechanism, used to be mounted on the upper sill of the car door, and capable of providing lateral driving force; A door lock mechanism, wherein the door lock mechanism is mounted on the door knife mechanism, and the door lock mechanism includes a mechanical lock assembly and an electrical lock assembly; The mechanical lock assembly includes a lock hook and a lock seat that cooperates with the lock hook; the lock seat is located at the end of the lock hook, and the end of the lock hook can cooperate with or separate from the lock seat; The electrical lock assembly includes a support rod, a switch body, and a switch base; the support rod is connected to the lock hook and extends outward, the switch body is located at the end of the support rod, and the switch body can cooperate with or separate from the switch base; It also includes a fixing block and a connecting rod for actuating the locking hook; The fixing block is fixedly connected to the upper sill of the car door, the connecting rod is horizontally arranged and guides the fixing block, and the front end of the connecting rod is provided with a lever to move the lock hook; The connecting rod has a protrusion on the side facing the switch body, and a second elastic element for resetting the connecting rod is provided between the protrusion and the fixing block; The door knife mechanism includes a second swing arm, on which a pusher is provided that can be tightly engaged with the connecting rod, and at the end of the connecting rod is a stop that is tightly engaged with the pusher. In the emergency opening state, the pusher pushes the stop, thereby causing the linkage to move in the opposite direction to the switch body; The upper end of the stop is provided with a ramp. In the emergency door opening state and the door lock mechanism is in the unlocked state, the pusher moves away from the stop along the ramp.

2. The elevator silent car door lock device according to claim 1, characterized in that, The door knife mechanism also includes a first swing arm, a base plate, a first rotating arm, a landing door moving roller, a second rotating arm, and a landing door stationary roller; The first swing arm and the second swing arm are respectively connected to the base plate through the first rotating arm and the second rotating arm. The floor door moving roller and the stationary roller are respectively disposed between the first swing arm and the second swing arm. The first swing arm and the second swing arm are provided with vibration damping pads on the side facing the floor door moving roller and the stationary roller.

3. The elevator silent car door lock device according to claim 2, characterized in that, The door knife mechanism is equipped with a retaining shaft structure, which cooperates with the rotating shaft of the second rotating arm.

4. The elevator silent car door lock device according to claim 1, characterized in that, A connecting seat is provided below the lock hook, and the connecting seat extends outward; a hanging rod is provided on the door knife mechanism, and the front end of the hanging rod extends above the connecting seat. The connecting seat and the front end of the hanging rod are connected by a first elastic element. During the rotation of the lock hook, the connecting seat can compress or unfold the first elastic element. When the locking hook is in the extended state, the locking hook is in a horizontal position.

5. The elevator silent car door lock device according to claim 4, characterized in that, The connecting seat is provided with a guide rod, one end of which is connected to the connecting seat, and the other end of which passes through the front end of the lifting rod. A limiting block is provided above the lifting rod, and the limiting block can be pressed tightly against the lifting rod.

6. The elevator silent car door lock device according to claim 5, characterized in that, A vibration absorber is provided below the connecting seat. When the locking hook is in a horizontal state, the connecting seat and the vibration absorber are in close contact with each other. The bottom of the connecting seat is provided with a locking block, and the vibration absorber is provided with a slot that engages with the locking block.

7. An elevator, characterized in that, Includes the elevator silent car door lock device as described in any one of claims 1 to 6 above.

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