A car door lock device and an elevator in which door horizontal movement is advanced over unlocking action

Abstract

The application discloses a car door lock device and an elevator, and the car door lock device is characterized in that a first guide element of a guide assembly is used to limit a binding wheel, so that when the car door is unlocked in a rescue process in a landing area, the door blade assembly can be synchronized with the lock hook and the switch body to move a distance in a transverse direction, and electrical unlocking is realized; with the continuous transverse movement of the static roller, the binding wheel is separated from the first guide element, the left rod on the door blade assembly drives the lock hook to rotate, and mechanical unlocking is realized; in the rescue unlocking process, interference between the pin on the switch body and the switch seat is avoided, the switch body is prevented from being damaged, the requirement on the pulling force for pulling the landing door is reduced, the rescue process is more labor-saving, and the efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a car door lock device and an elevator capable of enabling horizontal door movement to precede unlocking action. Background Art

[0002] In existing car door locks, mechanical locks and electrical locks are often used to synchronize unlocking and locking. When an elevator malfunctions, the door needs to be opened from the outside for rescue. If the car is in a flat area, rescuers open the landing door, and the static roller on the landing door will be linked to the door knife assembly on the car door. The door knife assembly drives the lock hook to rotate, and the lock hook rotates, which performs mechanical and electrical unlocking. However, during the electrical unlocking process, the switch body rotates with the lock hook, and the pin on the switch body mechanically interferes with the switch seat. A greater door-opening force is required to forcibly pull out the pin, which not only affects rescue efficiency, but also easily damages the pin and affects subsequent normal use. If the car is not in a flat area, rescuers open the landing door and use a pull rope to drive the door knife assembly, which drives the lock hook to rotate, and the lock hook rotates to mechanical and electrical unlocking. Similarly, due to the mechanical interference between the pin of the switch body and the switch seat, it is easy for the pull rope to require greater pulling force, or even fail to pull the rope, forcing rescuers to use hydraulic shears to forcibly pry the door, ultimately causing serious damage to the car. Summary of the Invention

[0003] In view of this, one object of the present invention is to provide a car door lock device that allows the door to move horizontally ahead of the unlocking action, which is convenient for unlocking and rescue. Another object of the present invention is to provide an elevator that is convenient for unlocking and rescue.

[0004] The technical solution of one aspect of the present invention is achieved as follows:

[0005] A car door lock device that enables horizontal door movement to precede unlocking action, comprising:

[0006] The door knife assembly includes a door knife base, a left connecting arm and a left rod, one end of the left connecting arm is rotatably connected to the door knife base, and the other end is rotatably connected to the left rod; the left rod is provided with a locking wheel; the left rod is also provided with a pulling member;

[0007] The door lock assembly includes a mechanical lock assembly and an electrical lock assembly. The mechanical lock assembly includes a lock hook and a lock seat capable of being locked with the lock hook, and the lock hook is rotatably arranged on the door knife base; the electrical lock assembly includes a switch body and a switch seat, the switch body is provided with a pin for horizontally plugging with the switch seat to achieve electrical conduction, and the switch body is arranged on the lock hook; the lock hook is pulled and connected to the pulling member to enable the lock hook to rotate on the door knife base;

[0008] The guide assembly includes a first guide member, the bottom of the first guide member has a horizontal guide abutment, and the horizontal guide abutment cooperates with the top blocking portion of the coupling wheel to limit the coupling wheel from moving a certain distance in the lateral direction.

[0009] Preferably, the guide assembly also includes a second guide member, which is arranged in the direction of the locking wheel approaching the lock seat to block the locking wheel from moving in the lateral direction toward the lock seat, and the second guide member is provided with a guide surface that rolls with the locking wheel; the car door lock device that makes the horizontal movement of the door ahead of the unlocking action also includes a pull rope assembly, and the pull rope assembly includes a first pull rope and a second pull rope, the first pull rope is connected to any one of the left rod, the left connecting arm, and the pulling member, and the second pull rope is connected to the lock hook.

[0010] Preferably, a card body is provided on the first pull rope, and a loop is provided on the second pull rope. The first pull rope is passed through the loop and can move relatively on the loop; the card body and the loop are in interference fit so that the card body drives the loop to pull the second pull rope.

[0011] Preferably, the pulling member is configured as a pull rod, one end of which is fixedly connected to the left rod, and the other end is provided with a hook; the pull rod pulls the lock hook through the hook, causing the lock hook to rotate to unlock the lock hook and the lock seat.

[0012] Preferably, the first guide member is arranged above the second guide member.

[0013] Preferably, the card body is a card pin fixed on the first pull rope, and the length of the card pin is greater than the maximum diameter of the ring.

[0014] Preferably, one end of the first pull rope is connected to the left rod, and the other end is fixed to the car door.

[0015] Preferably, one end of the first pull rope is connected to the pulling member, and the other end is fixed to the car door.

[0016] In the car door lock device of the present invention which makes the horizontal movement of the door ahead of the unlocking action, the first guide member of the guide assembly is used to limit the locking wheel, so that when unlocking and rescuing in the flat area, during the lateral movement of the static roller on the floor door, the door knife assembly can first be synchronously moved laterally for a distance together with the lock hook and the switch body to achieve electrical unlocking; as the static roller continues to move laterally, the locking wheel disengages from the first guide member, and the left rod on the door knife assembly drives the lock hook to rotate, achieving mechanical unlocking; in the above-mentioned rescue unlocking process, the pin on the switch body can be prevented from interfering with the switch seat, which not only avoids damage to the switch body, but also reduces the pulling force requirement for pulling open the floor door, making the rescue process more labor-saving and more efficient.

[0017] The beneficial effects of other preferred solutions of the car door lock device of the present invention, which enable the horizontal movement of the door to precede the unlocking action, are further elaborated in the specific embodiments.

[0018] The technical solution of another aspect of the present invention is achieved as follows:

[0019] An elevator comprises any one of the above-mentioned car door lock devices that causes the horizontal movement of the door to precede the unlocking action; during the rescue unlocking process of the elevator, the pins on the switch body can be prevented from interfering with the switch seat, thereby not only avoiding damage to the switch body, but also reducing the pulling force required to open the floor door, making the rescue process more labor-saving and more efficient; and there is no need to forcibly destroy the car structure, thereby avoiding an increase in subsequent repair and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0021] Figure 1 This is a schematic structural diagram of a car door lock device that enables the door's horizontal movement to precede the unlocking action according to the present invention;

[0022] Figure 2 for Figure 1 An enlarged schematic diagram of the guide assembly and the door lock assembly;

[0023] Figure 3 A schematic diagram of the electrical unlocking of the car door lock device in the leveling area, wherein the car door horizontal movement is ahead of the unlocking action according to the present invention;

[0024] Figure 4 Schematic diagram of the mechanical unlocking of the car door lock device in the leveling area, in which the horizontal movement of the door is ahead of the unlocking action according to the present invention;

[0025] Figure 5 This is a schematic diagram of the position changes of the left connecting arm, left rod and locking wheel when the car door lock device of the present invention, which enables the horizontal movement of the door to precede the unlocking action, is unlocked in a non-level area;

[0026] Figure 6 A schematic diagram of the electrical unlocking of a car door lock device in a non-level area, wherein the car door horizontal movement is ahead of the unlocking action according to the present invention;

[0027] Figure 7 Schematic diagram of the mechanical unlocking of the car door lock device in a non-level area, in which the horizontal movement of the door is ahead of the unlocking action according to the present invention;

[0028] Figure 8 A schematic diagram of one type of connection between the pull rope assembly, the door knife assembly and the door lock assembly;

[0029] Figure 9 for Figure 8 A schematic diagram of the connection between the first and second pull ropes;

[0030] In the figure: 100, static roller;

[0031] 1. Door blade assembly; 11. Door blade base; 12. Left connecting arm; 13. Left rod; 131. Tie wheel; 14. Pulling member; 141. Pull rod; 142. Hook;

[0032] 2. Door lock assembly; 21. Mechanical lock assembly; 211. Lock hook; 212. Lock seat; 22. Electrical lock assembly; 221. Switch body; 222. Switch seat;

[0033] 3. Guide assembly; 31. First guide member; 311. Horizontal guide abutment; 32. Second guide member; 321. Vertical side block section; 322. Arc-shaped guide section; 323. Sudden connection section;

[0034] 4. Draw rope assembly; 41. First draw rope; 411. Card body; 42. Second draw rope; 421. Ring. DETAILED DESCRIPTION

[0035] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. 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 making creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood 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 limiting the present invention.

[0037] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the car door lock device of the present invention that enables the door horizontal movement to be ahead of the unlocking action includes a door knife assembly 1, a door lock assembly 2 and a guide assembly 3;

[0039] The door knife assembly 1 includes a door knife base 11, a left connecting arm 12 and a left rod 13. One end of the left connecting arm 12 is rotatably connected to the door knife base 11, and the other end is rotatably connected to the left rod 13. A locking wheel 131 is provided on the left rod 13. A pulling member 14 is also provided on the left rod 13. In fact, the conventional door knife assembly 1 is also provided with a right connecting arm and a right rod on the door knife base 11. Figure 1 and Figure 2 The relevant structures are also shown in the figure, but since the right connecting arm, right rod and other structures are irrelevant to the working principle and beneficial effects to be explained in the present invention, they are not described in detail and are not marked in the figure;

[0040] The door lock assembly 2 includes a mechanical lock assembly 21 and an electrical lock assembly 22. The mechanical lock assembly 21 includes a lock hook 211 and a lock seat 212 capable of locking with the lock hook 211. The lock hook 211 is rotatably arranged on the door blade base 11; the electrical lock assembly 22 includes a switch body 221 and a switch seat 222. The switch body 221 is provided with a pin for horizontally plugging with the switch seat 222 to achieve electrical conduction. The switch body 221 is arranged on the lock hook 211; the lock hook 211 is pulled and connected to the pulling member 14 to enable the lock hook 211 to rotate on the door blade base 11;

[0041] The guide assembly 3 includes a first guide member 31 , and a horizontal guide abutment portion 311 is provided at the bottom of the first guide member 31 . The horizontal guide abutment portion 311 cooperates with the top of the locking wheel 131 to limit the locking wheel 131 from moving laterally for a certain distance.

[0042] The car door lock device in the above embodiment, which makes the horizontal movement of the door ahead of the unlocking action, can avoid interference between the pins on the switch body 221 and the switch base 222 when performing rescue unlocking in the flat area, which not only avoids damage to the switch body 221; but also reduces the pulling force requirement for opening the floor door, making the rescue process more labor-saving and more efficient.

[0043] Conventionally, when the car is in the leveling area, the static roller 100 and the dynamic roller on the landing door (not shown) are located between the left rod 13 and the right rod on the door knife assembly 1. Since the dynamic roller is irrelevant to the working principle and beneficial effects to be explained by the present invention, it is not described in detail and is not marked in the figure. When the car fails in the leveling area and needs to be rescued and unlocked from the outside, the rescue personnel open the landing door. During the process of opening the landing door, the static roller 100 on the landing door will move laterally with the landing door. The car door lock device of the present invention, which makes the horizontal movement of the door precede the unlocking action, uses the lateral movement of the static roller 100 on the landing door to apply the unlocking driving force.

[0044] Specifically, such as Figure 1 and Figure 3 As shown, during the lateral movement of the static roller 100, the static roller 100 pushes the left rod 13 to the left, so that the left connecting arm 12 connected to the left rod 13 has a tendency to move counterclockwise. However, during this process, the horizontal guide abutment 311 at the bottom of the first guide member 31 is blocked at the top of the locking wheel 131, so the locking wheel 131 can only move laterally to the left, causing the door knife assembly 1 to move to the left as a whole. Similarly, the lock hook 211 and the switch body 221 provided on the door knife base 11 move to the left accordingly, so that the pin on the switch body 221 disengages from the switch seat 222, thereby realizing electrical unlocking. In the above process, as shown in FIG. Figure 3 As shown, assuming that the distance required for the pin to detach from the switch seat 222 is L2, and the distance that the coupling wheel 131 moves laterally under the obstruction of the horizontal guide abutment 311 is L1, L1 should be greater than L2, so as to ensure that when the coupling wheel 131 detaches from the first guide member 31, the pin has completely detached from the switch seat 222; Figure 4As shown, after the engaging wheel 131 continues to move laterally and disengages the first guide member 31, the static roller 100 continues to push the left rod 13 laterally, causing the left connecting arm 12 to move counterclockwise. The left rod 13 then moves counterclockwise on the door blade base 11, and the pulling member 14 on the left rod 13 pulls the lock hook 211, causing the lock hook 211 to rotate, thereby mechanically unlocking the lock hook 211 from the lock seat 212. During this process, the car door moves with the door blade base 11. As mentioned above, when performing rescue unlocking in the flat area, the rescuer only needs to open the landing door. The car door lock device of the present invention, which enables the door's horizontal movement to precede the unlocking action, can automatically achieve a structural linkage of electrical unlocking followed by mechanical unlocking. This eliminates mechanical interference, making the rescue operation simple, labor-saving, and highly efficient. As the rescuer opens the landing door, the car door is also opened.

[0045] In other embodiments, Figure 1 、 Figure 2 、 Figure 5 As shown, the guide assembly 3 further includes a second guide member 32, which is positioned in the direction where the locking wheel 131 approaches the lock seat 212 to block the locking wheel 131 from moving in the lateral direction toward the lock seat 212. The second guide member 32 is provided with a guide surface that rolls with the locking wheel 131. The car door lock device that causes the door to move horizontally ahead of the unlocking action also includes a pull rope assembly 4, which includes a first pull rope 41 and a second pull rope 42. The first pull rope 41 is connected to any one of the left rod 13, the left connecting arm 12, and the pulling member 14, and the second pull rope 42 is connected to the lock hook 211. This embodiment also includes related structures that facilitate unlocking and rescue operations in uneven areas.

[0046] Specifically, when the car breaks down in the level area and needs to be rescued and unlocked from the outside, the rescuers open the floor door, and then the rescuers first pull any one of the left rod 13, the left connecting arm 12, and the pulling member 14 through the first pull rope 41 in the pull rope assembly 4, in order to drive the left connecting arm 12 to have a clockwise movement trend. Since the side of the locking wheel 131 is blocked by the second guide member 32, the locking wheel 131 and the left rod 13 move downward, and when the height of the door knife base 11 is fixed, the left connecting arm 12 pushes the door knife base 11 to the left, and the position of the left connecting arm 12 changes as shown in the figure. Figure 5As shown, the door blade assembly 1 and the lock hook 211 and switch body 221 fixed on the door blade base 11 are all moved horizontally to the left, and the pin on the switch body 221 is disengaged from the switch seat 222, thereby achieving electrical unlocking; then the rescuer pulls the lock hook 211 through the second pull rope 42 in the pull rope assembly 4, driving the lock hook 211 to rotate on the door blade base 11, thereby achieving mechanical unlocking of the lock hook 211 and the lock seat 212. As described above, when performing rescue unlocking in the flat area, the rescuer uses the pull rope assembly 4 to achieve electrical unlocking first and then mechanical unlocking; thus avoiding mechanical interference and the need for rescuers to forcefully break the door, thereby avoiding major damage to the car structure. In addition, during electrical unlocking, the car door moves a short distance with the door blade base 11, and after completing the mechanical unlocking, the rescuer pulls the car door completely open.

[0047] It should be noted that in Figure 6 and Figure 7 In FIG. 1 , the structure in which the first pull rope 41 is connected to the left rod 13 is shown; and Figure 8 and Figure 9 , the structure in which the first pull rope 41 is connected to the traction member is shown; the purpose is to pull the left connecting arm 12 to move clockwise, so that the door knife base 11 can be pushed to the left under the limitation of the second guide member 32.

[0048] In the above-mentioned rescue unlocking process in the non-level area, the rescuer may first pull the first pull rope 41 and then pull the second pull rope 42 to unlock the vehicle in two steps.

[0049] In a more preferred embodiment, reference Figure 8 and Figure 9The first pull rope 41 is provided with a card body 411, and the second pull rope 42 is provided with a loop 421. The first pull rope 41 is passed through the loop 421, and the first pull rope 41 can move relatively on the loop 421; the card body 411 and the loop 421 interfere with each other so that the card body 411 drives the loop 421 to pull the second pull rope 42. In this embodiment, the rescuer only needs to pull the first pull rope 41 during the rescue unlocking process in the non-level area. When the first pull rope 41 is pulled, the first pull rope 41 pulls the traction member downward, and the left rod 13 and the locking wheel 131 move downward accordingly, and the left connecting arm 12 moves clockwise to push the door knife base 11 to the left to achieve electrical unlocking; and when the first pull rope 41 continues to be pulled, the card body 411 on the first pull rope 41 reaches the position of the loop 421, and the card body 411 interferes with the loop 421, that is, The card body 411 cannot pass through the ring 421. The card body 411 pulls the second pull rope 42 through the ring 421, and the second pull rope 42 drives the lock hook 211 to rotate to achieve mechanical unlocking. As mentioned above, in the rescue unlocking process in the non-level area, the rescue personnel only need to pull the first pull rope 41. The car door lock device of the present invention, which makes the horizontal movement of the door ahead of the unlocking action, can automatically realize the structural linkage of electrical unlocking first and mechanical unlocking later. There will be no mechanical interference, and the rescue operation is simple, labor-saving and efficient.

[0050] In the above solution, the card body 411 can be an independent component fixed to the first pull rope 41. For example, the card body 411 is a bayonet fixed to the first pull rope 41, and the length of the bayonet is greater than the maximum diameter of the ring 421. The card body 411 can also be a structure of the first pull rope 41 itself, for example, a knot tied on the first pull rope 41 to form the card body 411. Similarly, the ring 421 can also be an independent component or a structure of the second pull rope 42 itself, such as a metal ring or a loop tied by the second pull rope 42. To prevent the other end of the first pull rope 41 from floating freely and affecting the operation of the elevator, the other end of the first pull rope 41 is fixed to the car door.

[0051] refer to Figure 2 The pulling member 14 is configured as a pull rod 141, one end of the pull rod 141 is fixedly connected to the left rod 13, and the other end is provided with a hook portion 142; the pull rod 141 pulls the lock hook 211 through the hook portion 142, causing the lock hook 211 to rotate to unlock the lock hook 211 and the lock seat 212.

[0052] Preferably, reference Figure 5The first guide member 31 is provided above the second guide member 32, and the guide surface of the second guide member 32 includes a vertical side block segment 321, an arc-shaped guide segment 322, and a sudden connection segment 323 located between the vertical side block segment 321 and the arc-shaped guide segment 322. The vertical side block segment 321 blocks between the locking wheel 131 and the lock seat 212, and the vertical side block segment 321 can realize the positioning of the locking wheel 131 below the first guide member 31, and also prevents the locking wheel 131 from moving laterally toward the lock seat 212 when unlocking, thereby realizing that the left connecting arm 12 can push the door knife base 11 to move left; the arc-shaped guide segment 322 can make it possible for the locking wheel 131 to move to the right along the arc-shaped guide segment 322 when closing the door. The locking cam 321 is moved upwards to the left of the vertical side block 321, and the locking cam 323 is moved upwards to the right of the vertical side block 321. The locking cam 321 is moved upwards to the left of the vertical side block 321, and the locking cam 323 is moved upwards to the right of the vertical side block 321.

[0053] 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 scope of protection of the present invention.

Claims

1. A car door lock device that enables the door's horizontal movement to precede the unlocking action, characterized in that: include: The door knife assembly includes a door knife base, a left connecting arm and a left rod, one end of the left connecting arm is rotatably connected to the door knife base, and the other end is rotatably connected to the left rod; the left rod is provided with a locking wheel; the left rod is also provided with a pulling member; The door lock assembly includes a mechanical lock assembly and an electrical lock assembly. The mechanical lock assembly includes a lock hook and a lock seat capable of being locked with the lock hook, and the lock hook is rotatably arranged on the door knife base; the electrical lock assembly includes a switch body and a switch seat, the switch body is provided with a pin for horizontally plugging with the switch seat to achieve electrical conduction, and the switch body is arranged on the lock hook; the lock hook is pulled and connected to the pulling member to enable the lock hook to rotate on the door knife base; A guide assembly, the guide assembly comprising a first guide member, the bottom of the first guide member having a horizontal guide abutment, the horizontal guide abutment cooperating with the top of the coupling wheel to limit the lateral movement of the coupling wheel for a certain distance; The guide assembly further includes a second guide member, which is provided in a direction where the engaging wheel approaches the lock seat to block the engaging wheel from moving in a transverse direction toward the lock seat, and the second guide member is provided with a guide surface that rolls with the engaging wheel; It also includes a pull rope assembly, which includes a first pull rope and a second pull rope. The first pull rope is connected to any one of the left rod, the left connecting arm, and the pulling member, and the second pull rope is connected to the locking hook.

2. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 1, characterized in that: The first pull rope is provided with a card body, and the second pull rope is provided with a loop. The first pull rope is passed through the loop and can move relatively on the loop. The card body and the loop are in interference fit so that the card body drives the loop to pull the second pull rope.

3. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 1, characterized in that: The pulling member is configured as a pull rod, one end of which is fixedly connected to the left rod, and the other end of which is provided with a hook; the pull rod pulls the lock hook through the hook, causing the lock hook to rotate to unlock the lock hook from the lock seat.

4. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 1, characterized in that: The first guide member is arranged above the second guide member.

5. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 2, characterized in that: The card body is a bayonet fixed on the first pull rope, the ring is a metal ring fixed on the second pull rope, and the length of the bayonet is greater than the maximum diameter of the ring.

6. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 2, characterized in that: The card body is a knot formed by the first pull rope itself, and the ring is a loop formed by the second pull rope itself.

7. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 2, characterized in that: One end of the first pull rope is connected to the left rod, and the other end is fixed to the car door.

8. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 2, characterized in that: One end of the first pull rope is connected to the pulling member, and the other end is fixed to the car door.

9. An elevator, characterized in that: A car door locking device comprising the device of any one of claims 1-8, which enables the horizontal movement of the door to precede the unlocking action.

Images