Elevator mute car door lock device and elevator

Abstract

The invention belongs to the technical field of elevators, and provides an elevator mute car door lock device which comprises a door lock mechanism, the door lock mechanism is arranged on a door knife mechanism, and the door lock mechanism comprises a mechanical lock assembly and an electric 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 part of the lock hook; the electric lock assembly comprises a supporting rod, a switch body and a switch base. The supporting rod is connected with the lock hook and extends outwards, and the switch body is arranged at the end of the supporting rod. The connecting rod is independently arranged and is not in hard connection with the swing rod or the lock hook, so that force generated by the connecting rod in the normal opening process of the car door cannot be transmitted to the landing door roller through the swing rod, large noise is avoided, and the riding experience of customers is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of elevators, and in particular relates to a silent elevator door lock device and an elevator. Background Art

[0002] In daily life, people often need to take the elevator to reach different floors, and the elevator car door often needs to be equipped with a set of door lock mechanisms to lock the car door. The door lock structure usually includes a mechanical lock component and an electric lock component. The electric lock component under normal conditions is set on the mechanical lock component, so the electric lock component will move with the mechanical lock component, which makes the electric lock component easy to be damaged, affecting the operation of the elevator. In addition, during each movement, the lock hook falls and the floor door roller collides with the swing arm, which produces a loud noise, causing discomfort to passengers and affecting their riding experience. Summary of the invention

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

[0004] The technical solution adopted by the present invention to solve its technical problems is: a silent elevator car door lock device, comprising: a door knife mechanism, which is used to be installed on the upper sill of the car door and can provide a lateral driving force; a door lock mechanism, the door lock structure is arranged 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 arranged 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 arranged 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 the lock seat in the mechanical lock assembly will separate from each other, and the switch body and the 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 suspension rod is provided on the door knife mechanism, and the front end of the suspension rod extends above the connecting seat, and the connecting seat and the front end of the suspension rod are connected through a first elastic member, and the connecting seat can compress or expand the first elastic member during the movement and rotation of the lock hook;

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

[0008] Preferably, a guide rod is provided on the connecting seat, one end of the guide rod is connected to the connecting seat, the other end of the guide rod passes through the front end of the suspension rod, and a limit block is provided above the suspension rod, and the limit block can be pressed against the suspension 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 contact with each other;

[0010] A clamping block is provided at the bottom of the connecting seat, and a clamping groove which is mutually engaged with the clamping block is provided on the vibration absorber.

[0011] Preferably, it also includes a fixing block and a connecting rod for moving 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 guided with the fixing block, and a shifting block for shifting the locking hook is arranged at the front end of the connecting rod.

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

[0014] Preferably, the door knife mechanism comprises a second swing rod, the second swing rod is provided with a pusher which can be tightly matched with the connecting rod, and the end of the connecting rod is provided with a retaining edge which is tightly matched with the pusher;

[0015] In the state of emergency door opening, the pushing member pushes the retaining edge, so that the connecting rod moves in the opposite direction of the switch body;

[0016] The upper end of the retaining edge is provided with a slope, and in the state of emergency door opening and the door lock mechanism is in the lower unlocking state, the pushing member moves away from the retaining edge along the slope.

[0017] Preferably, the door knife mechanism further comprises a first swing rod, a bottom plate, a first rotating arm and a moving roller of the landing door, a second rotating arm and a static roller of the landing door;

[0018] The first swing arm and the second swing arm are connected to the bottom plate through the first rotating arm and the second rotating arm respectively, the moving roller of the floor door and the static roller are respectively arranged between the first swing arm and the second swing arm, and the first swing arm and the second swing arm are provided with vibration absorbing pads on one side facing the moving roller of the floor door and the static roller.

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

[0020] An elevator, characterized by comprising the elevator silent car door lock device as described in any one of the above items.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

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

[0023] 2. Since a support rod extending to the outside of the lock hook is provided on the lock hook, and the switch body is installed at the end of the support rod, the switch body and the lock hook are separated. When the lock is opened or closed, the switch body and the switch seat will not collide, thereby improving the service life of the electric lock assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0025] Figure 1 This is a simplified diagram of the elevator car door;

[0026] Figure 2 It is a silent car door lock device for the elevator;

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

[0028] Figure 4 for Figure 3 A side view of the door lock structure shown;

[0029] Figure 5 This is a schematic diagram of unlocking the electric lock assembly of the elevator silent car door lock device in a normal state;

[0030] Figure 6 This is a schematic diagram of unlocking the mechanical lock assembly of the elevator silent car door lock device in a normal state;

[0031] Figure 7 This is a schematic diagram of the elevator silent car door lock device in which the static roller of the landing door and the dynamic roller of the landing door are completely clamped by the door knife swing rod in a normal state;

[0032] Figure 8 A schematic diagram of unlocking the mechanical lock component and the electrical lock component of the elevator silent car door lock device in an emergency state;

[0033] Fig. 9 A schematic diagram of the elevator silent car door lock device pushing a member to move to a slope in an emergency state;

[0034] 10. Door knife mechanism; 11. Bottom plate; 12. First rotating arm; 13. First swing rod; 14. Pressing roller; 15. Second rotating arm; 16. Second swing rod; 160. Pushing member; 17. Connecting rod; 170. Fixed block; 171. Dial block; 172. Protrusion; 173. Baffle; 174. Slope; 18. Axle clamping structure; 19. Vibration absorbing pad; 20. Door lock mechanism; 21. Mechanical lock assembly; 211. Lock hook; 212. Lock seat; 213, connecting seat; 214, hanging rod; 215, first elastic member; 216, guide rod; 217, limit block; 218, vibration absorber; 219, clamping block; 22, electric lock assembly; 220, support rod; 221, switch body; 222, switch seat; 30, static roller of floor door; 40, dynamic roller of floor door; 50, motor; 60, belt; 70, tensioning device; 80, connecting plate; 90, right door hanging plate; 100, left door hanging plate. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work 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 those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

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

[0038] In the present technical solution, the above-mentioned car door lock device is applied to the elevator car to improve the reliability of the opening and closing of the car door. Specifically, the door knife mechanism 10 is connected to the driving mechanism preset on the upper sill of the car door, so as to provide a lateral driving force. In order 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 electric lock assembly 22 will synchronously perform lateral movements, but because the switch body 221 can contact or separate from the switch seat 222 in the lateral direction, there will be no sliding friction between the switch seat 222 and the switch body 221 during this movement, and the switch body 221 will not be damaged by extrusion deformation, scratches, etc., and then when the lock hook 211 is lifted upward, the lock hook 211 is separated from the lock seat 212, and the switch body 221 will move away from the switch seat 22 together with the rotation of the support rod. On the contrary, when the door is closed, 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, thereby improving the service life and performance of the car door lock device.

[0039] In the above scheme, a driving mechanism is pre-installed on the upper sill of the car door, and the driving mechanism includes a motor 50, a belt 60, a tensioning device 70, a connecting plate 80, a right door hanging plate 90, a left door hanging plate 100 and other components. The tensioning device 70 is used to tension the belt 60 so that the belt 60 will not be loose and slip. The motor 50 drives the belt 60 to rotate and drives the connecting plate 80 to move. 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 opening action of the car door. Since the door knife mechanism 10 is fixed to the left door hanging plate 100 by bolts, it can move synchronously and provide a 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 opening of the car door.

[0040] Please continue reading Figure 1-Figure 4Further, 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 arranged on the base plate 11, and a first rocker arm 13 rotatably connected to the first rotating arm 12 and movable laterally, and the first rocker arm 13 can be driven and cooperated with the moving roller 40 of the floor door; the mechanical lock assembly 21 also includes a rotating shaft arranged on the base plate 11, the lock hook 211 can be rotatably arranged on the rotating shaft, and a pressure roller 14 is arranged on the lock hook 211, and the pressure roller 14 can abut against the first rocker arm 13. The door lock mechanism 20 also includes a connecting seat 213 arranged below the lock hook 211, and the connecting seat 213 extends outward; a hanging rod 214 is provided on the door knife mechanism 10, and the front end of the hanging rod 214 extends to the top of the connecting seat 213, and the connecting seat 213 and the front end of the hanging rod 214 are connected through a first elastic member 215. When the lock seat 212 is moving, the connecting seat 213 can compress or expand the first elastic member 215; when the lock hook 211 is in the expanded state, the lock hook 211 is in a horizontal position, and the lock hook 211 is limited by the first elastic member 215.

[0041] In addition, a guide rod 216 is provided on the connecting seat 213, one end of the guide rod 216 is connected to the connecting seat 213, the other end of the guide rod 216 passes through the front end of the suspension rod 214, and a limit block 217 is provided above the suspension rod 214. The limit block 217 can be pressed against the suspension rod 214, so that the lock hook 211 cooperates with the guide rod 216 through the connecting seat 213, so that the lock hook 211 swings along the guide rod 216. In order to prevent the guide rod 216 from falling off during the movement, a limit block 217 is installed above the guide rod 216 for limiting.

[0042] In addition, in order to reduce the impact during the descent of the lock hook 211, a vibration absorber 218 is provided under the connecting seat 213. When the lock hook 211 is in a horizontal state, the connecting seat 213 and the vibration absorber 218 are fitted and fixed to each other, and the vibration absorber 218 does not move during operation; a card block 219 is provided at the bottom of the connecting seat 213, and a card slot that engages with the card block 219 is provided on the vibration absorber 218. When the lock hook 211 falls completely, the card block 219 will be stuck in the card slot, which plays a role of vibration absorption and buffering, and also plays a role of limiting.

[0043] like Figure 2As shown, first, 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 member and its own gravity, and the lock hook 211 is engaged with the lock seat 212 to achieve mechanical locking. At the same time, the pressing roller 14 on the lock hook 211 and the first swing rod 13 are in contact with each other (that is, there is zero clearance between the two), and the support rod will push the switch body 221 to the switch seat 222 under the action of the elastic member and self-weight of the lock hook 211 and achieve electrical conduction. At this time, it is assumed that the front end of the lock hook 211 has interlocking gaps A and B in the horizontal and vertical directions respectively, and the switch body 221 is inserted into the switch seat 222 and has a matching gap C.

[0044] Optionally, the first elastic member is any one of a spring, a spring sheet, and a rubber block.

[0045] Please continue reading Figure 5-Figure 7 In addition, the door knife mechanism 10 also includes a second rotating arm 15 arranged on the bottom plate 11, a second swing rod 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 rod 16, and the shifting block 171 at the front end of the connecting rod 17 is also connected to the locking hook 211 for rotational driving. When the elevator is leveling, 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 static roller 30 and the dynamic roller 40 of the floor door on the floor door side enter the second swing rod 16 and the first swing rod 13 area of ​​the door knife mechanism 10 respectively, and at this time, the distance between the static roller 30 and the dynamic roller 40 of the floor door is set to T2, and the distance between the dynamic roller 40 and the first swing rod 13 is T1; wherein, 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 thereon to move to the left. And in the process of moving to the left, the switch body 221 first moves horizontally to the left and disengages from the switch seat 222 (because the gap C is the smallest, the electrical unlocking occurs first); then, the first swing rod 13 gradually touches the dynamic roller 40 of the landing door, causing the lock hook 211 to lift up and disengage from the lock seat 212 to achieve mechanical unlocking; that is, when unlocking, the electrical unlocking is completed first, and then the mechanical unlocking is completed. After that, the car door continues to move to the left, and the reaction force of the first swing rod 13 causes the dynamic roller 40 of the landing door to move toward the static roller 30 of the landing door, thereby achieving the unlocking of the landing door lock, and finally the car door drives the landing door to open completely. When closing the door, the car door performs the opposite action steps with reference to the above process. Simply put: the lock hook 211 first falls and engages with the lock seat 212 to achieve mechanical locking, and then the switch body 221 is inserted into the switch seat 222 to achieve electrical locking. During the opening process, since the connecting rod 17 and the second rocker arm 16 are separated from each other and have no hard connection, when the second rocker arm 16 falls clockwise to contact the floor door static wheel 40, the gravity of the connecting rod 17 will not be superimposed on the floor door static wheel 40 every time the door is opened, and a large impact sound will not be caused.

[0046] When the elevator car enters the leveling area, and the elevator suddenly loses power or the motor is damaged, the passengers inside the car door cannot save themselves and need to be rescued from outside the hall. Figure 8-Figure 9 At this time, the floor door moving roller 40 and the floor door static roller 30 on the floor door side enter the working area of ​​the second swing rod 16 and the first swing rod 13 of the door knife mechanism 10 respectively. The rescue personnel use the triangular key outside the hall to open the floor door. The floor door moving roller 40 moves to the left toward the floor door static roller 30 to eliminate the gap T2. The floor door static roller 30 continues to move to the left and hits the second swing rod 16 to eliminate the gap T3. The second swing rod 16 rotates upward counterclockwise through the second rotating arm 15, and simultaneously drives the connecting rod 17 to flip, so that the lock hook 211 can be pulled to rotate and lift. Specifically, the second swing rod 16 is provided with a push member 160, which can be a roller or an arc-shaped push block. In the process of the second swing rod 16 continuously moving upward, the push member 160 and the retaining edge at the end of the connecting rod 17 are pressed against each other and push the push rod in the opposite direction of the switch body 221. Then, the shifting block 171 on the connecting rod 17 shifts the hook lock, thereby realizing the lifting of the hook lock. During this process, the switch body 221 slides directly out of the switch seat 222, and the electrical unlocking and the mechanical unlocking are performed simultaneously. During this process, the connecting rod 17 will collide with the second swing rod 16, but since it is in the process of emergency rescue, the sound generated by the connecting rod 17 and the second swing rod 16 during this process does not need to be paid much attention to, and it is only necessary to quickly unlock and open the car door and rescue the personnel safely.

[0047] Of course, if the pushing block keeps pressing against the side guard, then when the door lock structure is unlocked, the car door will not be able to open due to the interference of the pushing block. Therefore, a slope 174 is provided at the upper end of the side guard. When the door is opened in an emergency and the door lock mechanism 20 is in the lower unlocked state, the pushing member 160 moves away from the side guard along the slope 174, thereby allowing the car door to open.

[0048] In other optional embodiments, a protrusion is provided on the side of the connecting rod facing the switch body, and a second elastic member 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 connected to the bottom plate through the first rotating arm 12 and the second rotating arm 15 respectively, the floor door moving wheel 40 and the floor door static wheel 30 are respectively arranged on one side of the first swing arm 13 and the second swing arm 16, and a vibration absorbing pad 19 is provided on the side of the first swing arm 13 and the second swing arm 16 facing the floor door moving wheel 40 and the floor door static wheel 30.

[0050] By assembling and using the car door lock device, the elevator can open and close the door normally, which can greatly improve the performance and reliability. The door knife mechanism 10 is provided with a clamping shaft structure 18, and the clamping shaft structure 18 can cooperate with the rotating shaft of the second rotating arm 15. When the car door is opened normally, since the second rotating arm 15 and the second swing arm 16 fall clockwise, the limit of the second swing arm 16 will hit the door knife bottom plate 11, so the clamping shaft structure 18 is used for buffering, thereby extending the service life of the components and improving the riding experience of passengers.

[0051] In combination with the above-mentioned connecting rod not being rigidly connected to the second swing arm, the vibration absorbing pad 19 on the first swing arm 13 and the second swing arm 16, the clamping shaft structure 18 cooperating with the second swing arm 16, and the vibration absorber structure of the lower limit of the lock hook 211, the car door lock is finally made silent.

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

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A silent elevator door lock device, characterized in that: include: The door knife mechanism is used to be installed on the upper sill of the car door and can provide lateral driving force; A door lock mechanism, wherein the door lock structure is arranged on the door knife mechanism, and the door lock mechanism includes a mechanical lock component and an electrical lock component; The mechanical lock assembly includes a lock hook and a lock seat that cooperates with the lock hook; the lock seat is arranged 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 comprises 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 arranged at the end of the support rod, and the switch body can be matched with or separated from the switch seat; It also includes a fixing block and a connecting rod for moving the locking hook; The fixing block is fixedly connected to the upper sill of the car door, the connecting rod is horizontally arranged and guided with the fixing block, and a shifting block for shifting the lock hook is provided at the front end of the connecting rod.

2. The elevator silent car door lock device according to claim 1, characterized in that: A protrusion is provided on one side of the connecting rod facing the switch body, and a second elastic member for resetting the connecting rod is provided between the protrusion and the fixing block.

3. The elevator silent car door lock device according to claim 2, characterized in that: The door knife mechanism comprises a second swing rod, on which a pusher is provided which can be tightly matched with the connecting rod, and a retaining edge is provided at the end of the connecting rod which is tightly matched with the pusher; In the state of emergency door opening, the pushing member pushes the retaining edge, so that the connecting rod moves in the opposite direction of the switch body; The upper end of the retaining edge is provided with a slope, and in the state of emergency door opening and the door lock mechanism is in the lower unlocking state, the pushing member moves away from the retaining edge along the slope.

4. The elevator silent car door lock device according to claim 3, characterized in that: The door knife mechanism also includes a first swing rod, a bottom plate, a first rotating arm and a moving roller of the landing door, a second rotating arm and a static roller of the landing door; The first swing arm and the second swing arm are connected to the bottom plate through the first rotating arm and the second rotating arm respectively, the moving roller of the floor door and the static roller are respectively arranged between the first swing arm and the second swing arm, and the first swing arm and the second swing arm are provided with vibration absorbing pads on one side facing the moving roller of the floor door and the static roller.

5. The elevator silent car door lock device according to claim 4, characterized in that: The door knife mechanism is provided with a shaft clamping structure, and the shaft clamping structure can cooperate with the shaft of the second rotating arm.

6. 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, and the connecting seat and the front end of the hanging rod are connected through a first elastic member, and the connecting seat can compress or expand the first elastic member during the rotation of the lock hook; When the locking hook is in the unfolded state, the locking hook is in a horizontal position.

7. The elevator silent car door lock device according to claim 6, characterized in that: A guide rod is provided on the connecting seat, one end of the guide rod is connected to the connecting seat, the other end of the guide rod passes through the front end of the suspension rod, and a limit block is provided above the suspension rod, and the limit block can be pressed against the suspension rod.

8. The elevator silent car door lock device according to claim 1, characterized in that: 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 contact with each other; A clamping block is provided at the bottom of the connecting seat, and a clamping groove which is mutually engaged with the clamping block is provided on the vibration absorber.

9. An elevator, characterized in that: It comprises the elevator silent car door lock device as described in any one of claims 1 to 8 above.

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