Car door lock device enabling horizontal movement of door to be ahead of unlocking action and elevator

Abstract

According to the car door lock device capable of enabling the horizontal movement of the door to be ahead of the unlocking action and the elevator, the car door lock device capable of enabling the horizontal movement of the door to be ahead of the unlocking action utilizes the first guide piece of the guide assembly to limit the fastening wheel, so that when unlocking rescue is carried out in a flat layer area, the fastening wheel is locked; in the transverse movement process of a static roller on the landing door, the door knife assembly can synchronously and transversely move for a certain distance with the lock hook and the switch body firstly, and electric unlocking is achieved; along with the continuous transverse movement of the static roller, the fastening wheel is separated from the first guide piece, and a left rod on the door knife assembly drives the lock hook to rotate, so that mechanical unlocking is realized; in the rescue unlocking process, the contact pin on the switch body can be prevented from interfering with the switch base, so that the switch body is prevented from being damaged; and the requirement for pulling force for pulling the landing door is reduced, so that the rescue process is more labor-saving and higher in efficiency.

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 making the door horizontally move ahead of the unlocking action. Background Art

[0002] In the existing car door locks, mechanical locks and electrical locks are often used to perform unlocking and locking actions synchronously. When an elevator fails, it is necessary to open the door from the outside for rescue. If the car is in the level area, the rescue personnel open the floor door, and the static roller on the floor door will be linked to the door knife assembly on the car door. The door knife assembly drives the lock hook to rotate, and mechanical unlocking and electrical unlocking are performed when the lock hook rotates. However, during the electrical unlocking process, since the switch body rotates with the lock hook, the pin on the switch body forms a mechanical interference with the switch seat, and a larger door opening pull force is required to forcibly pull out the pin, which affects the rescue efficiency on the one hand, and on the other hand, forcibly pulling out the pin is likely to cause damage to the pin and affect subsequent normal use; if the car is in a non-level area, the rescue personnel open the floor door and drive the door knife assembly to work by pulling the rope, and the door knife assembly drives the lock hook to rotate, and mechanical unlocking and electrical unlocking are performed when the lock hook rotates. Similarly, due to the mechanical interference between the pin of the switch body and the switch seat, it is easy to make the pull rope operation need to apply a larger pulling force, or even the pull rope operation fails, so that the rescue personnel are forced to use hydraulic shears to forcibly pry the door, which eventually causes 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 for easy unlocking and rescue. Another object of the present invention is to provide an elevator that is easy to unlock 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] A door knife assembly, the door knife assembly comprises 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; a locking wheel is provided on the left rod; and a pulling member is also provided on the left rod;

[0007] A door lock assembly, 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 and matched with the lock hook, the lock hook is rotatably arranged on the door blade 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, the switch body is arranged on the lock hook; the lock hook is pulled and connected with the pulling member to realize the rotation of the lock hook on the door blade base;

[0008] The guide assembly comprises a first guide member, the bottom of the first guide member has a horizontal guide abutment, the horizontal guide abutment cooperates with the top blocking portion of the locking wheel to limit the locking 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 door move horizontally 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 to rotate the lock hook 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 move horizontally for a distance synchronously with the lock hook and the switch body to achieve electrical unlocking; as the static roller continues to move horizontally, the locking wheel disengages from the first guide member, and the left rod on the door knife assembly drives the lock hook to rotate, thereby 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 that make the horizontal movement of the door precede the unlocking action are further specifically described in the specific implementation manner.

[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 which enables the horizontal movement of the door to precede the unlocking action; the elevator can avoid interference between the pins on the switch body and the switch seat during the rescue unlocking process, which not only avoids damage to the switch body; but also reduces the pulling force requirement for opening the floor door, making the rescue process more labor-saving and more efficient; there is no need to forcefully destroy the car structure, 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a car door lock device of the present invention that enables the horizontal movement of the door to be ahead of the unlocking action;

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

[0023] Figure 3 It is a schematic diagram of the electrical 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;

[0024] Figure 4 It is a schematic diagram of 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 A schematic diagram of the position changes of the left connecting arm, the left rod and the locking wheel when the car door lock device of the present invention, which enables the door horizontal movement to be ahead of the unlocking action, is unlocked in a non-level area;

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

[0027] Figure 7 A 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 of the pull rope assembly, the door knife assembly and the door lock assembly;

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

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

[0031] 1. Door knife assembly; 11. Door knife 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 portion; 32. Second guide member; 321. Vertical side stop section; 322. Arc guide section; 323. Sudden change connection section;

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

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it is necessary to understand that the terms "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[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 comprises 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, so Figure 1 and Figure 2 There are also diagrams showing related structures, but since the right connecting arm, right rod and other structures are irrelevant to the working principle and beneficial effects to be explained by the present invention, they are not described in detail and are not marked in the diagrams;

[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 with the pulling member 14 to realize the rotation of the lock hook 211 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 door move horizontally ahead of the unlocking action, can avoid interference between the pins on the switch body 221 and the switch seat 222 when performing rescue unlocking in the flat area, which not only avoids damage to the switch body 221; it 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, wherein the dynamic roller is irrelevant to the working principle and beneficial effects to be explained by the present invention, so 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. In the process of opening the landing door, the static roller 100 on the landing door will move laterally with the landing door, and the car door lock device of the present invention, which makes the horizontal movement of the door ahead of the unlocking action, uses the lateral movement of the static roller 100 on the landing door to apply the unlocking driving force;

[0044] Specifically, 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, but in this process, the horizontal guide abutment portion 311 at the bottom of the first guide member 31 blocks the top of the locking wheel 131, so the locking wheel 131 can only move horizontally to the left, and the door knife assembly 1 moves 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 Figure 3 As shown, assuming that the distance required for the plug pin to be separated from the switch seat 222 is L2, and assuming that the distance that the coupling wheel 131 moves laterally under the obstruction of the horizontal guide abutment portion 311 is L1, L1 should be greater than L2, so as to ensure that when the coupling wheel 131 is separated from the first guide member 31, the plug pin has completely separated from the switch seat 222; Figure 4As shown, after the engaging wheel 131 continues to move horizontally and disengages from the first guide member 31, as the static roller 100 continues to push the left rod 13 horizontally, the left connecting arm 12 moves counterclockwise, and the left rod 13 moves counterclockwise on the door knife base 11, and the pulling member 14 on the left rod 13 pulls the lock hook 211, so that the lock hook 211 rotates, and the mechanical unlocking of the lock hook 211 and the lock seat 212 is realized. In the above process, the car door moves with the door knife base 11; as mentioned above, when performing rescue unlocking in the flat area, the rescuer only needs to open the floor door. The car door lock device of the present invention that makes the door horizontally move 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. In the process of the rescuer opening the floor 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 arranged in the direction of the locking wheel 131 approaching the lock seat 212 to block the locking wheel 131 from moving in the lateral direction to the lock seat 212, and the second guide member 32 is provided with a guide surface that rolls with the locking wheel 131; the car door lock device that makes the door move horizontally ahead of the unlocking action also includes a pull rope assembly 4, the pull rope assembly 4 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. In this embodiment, a related structure is added to facilitate unlocking and rescue in non-level areas.

[0046] Specifically, when the car fails in the leveling area and needs to be rescued and unlocked from the outside, the rescue personnel open the floor door, and then the rescue personnel first pull the left rod 13, the left connecting arm 12, and any one of the pulling members 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 FIG. Figure 5As shown, the door knife assembly 1 and the lock hook 211 and switch body 221 fixed on the door knife base 11 are all moved horizontally to the left, and the pin on the switch body 221 is separated from the switch seat 222, realizing 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 knife base 11, realizing mechanical unlocking of the lock hook 211 and the lock seat 212. As mentioned above, when performing rescue unlocking in the flat area, the rescuer uses the pull rope assembly 4 to realize electrical unlocking first and then mechanical unlocking; mechanical interference is avoided, and the situation in which the rescuer needs to forcefully break the door to avoid major damage to the car structure. In addition, during electrical unlocking, the car door moves a short distance with the door knife 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 Fig. 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 door in two operation steps.

[0049] In a more preferred embodiment, reference Figure 8 and Fig. 9, a card body 411 is provided on the first pull rope 41, and a ring 421 is provided on the second pull rope 42. The first pull rope 41 is inserted into the ring 421, and the first pull rope 41 can move relatively on the ring 421; the card body 411 and the ring 421 interfere with each other so that the card body 411 drives the ring 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 ring 421, and the card body 411 interferes with the ring 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 achieve 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 part fixed on the first pull rope 41, for example, the card body 411 is a bayonet fixed on 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 the structure of the first pull rope 41 itself, for example, a knot is tied on the first pull rope 41 to form the card body 411; similarly, the ring 421 can also be an independent part or the structure of the second pull rope 42 itself, such as a metal ring or a rope loop tied by the second pull rope 42 itself. In order 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, so that the lock hook 211 rotates to achieve unlocking of the lock hook 211 and the lock seat 212.

[0052] Preferably, reference Figure 5The first guide member 31 is arranged 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. The vertical side block segment 321 can realize the positioning of the locking wheel 131 below the first guide member 31, and also makes it impossible for the locking wheel 131 to move laterally toward the lock seat 212 when unlocking, so that the left connecting arm 12 can push the door knife base 11 to move leftward; 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 fastening wheel 131 moves so that the fastening wheel 131 returns to the position abutting against the left side of the vertical side block section 321; and the sudden connection section 323 does not smoothly transition between the vertical side block section 321 and the arc-shaped guide section 322. When the first pull rope 41 is pulled, the fastening wheel 131 initially vertically descends along the vertical side block section 321. When the fastening wheel 131 descends to the height corresponding to the sudden connection section 323, the fastening wheel 131 disengages from the vertical side block section 321 and does not contact the sudden connection section 323. The fastening wheel 131 loses the frictional resistance between the vertical side block section 321. Under the action of the gravity of the left rod 13 and the traction member and the pulling force of the first pull rope 41, the fastening wheel 131 is pulled, so that the rescue personnel can save more effort when pulling the first pull rope 41.

[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 protection scope of the present invention.

Claims

1. A car door lock device that enables the door horizontal movement to precede the unlocking action, characterized in that: include: A door knife assembly, the door knife assembly comprises 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; a locking wheel is provided on the left rod; and a pulling member is also provided on the left rod; A door lock assembly, 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 and matched with the lock hook, the lock hook is rotatably arranged on the door blade 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, the switch body is arranged on the lock hook; the lock hook is pulled and connected with the pulling member to realize the rotation of the lock hook on the door blade base; The guide assembly comprises a first guide member, the bottom of the first guide member has a horizontal guide abutment, the horizontal guide abutment cooperates with the top blocking portion of the locking wheel to limit the locking wheel from moving a certain distance in the lateral direction.

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 guide assembly further includes a second guide member, which is arranged in a direction where the coupling wheel approaches the lock seat to block the coupling wheel from moving in a lateral direction toward the lock seat, and the second guide member is provided with a guide surface that rolls with the coupling 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.

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

4. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 2, 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 to rotate the lock hook to unlock the lock hook from the lock seat.

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 first guide member is arranged above the second guide member.

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 card pin fixed on the first pull rope, the ring is a metal ring fixed on the second pull rope, and the length of the card pin is greater than the maximum diameter of the ring.

7. 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.

8. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 3, characterized in that: One end of the first pull rope is connected to the left rod, and the other end is fixed on the car door.

9. The car door lock device that enables the door horizontal movement to precede the unlocking action according to claim 3, characterized in that: One end of the first pull rope is connected to the pulling member, and the other end is fixed on the car door.

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

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