CN220998854U - Car door locking knife device, door machine and elevator - Google Patents

Abstract

The utility model discloses a car door locking door knife device, a door machine and an elevator, which comprise a bottom plate, a lock hook, a rotating plate assembly, a swing arm assembly, a knife arm assembly and a traction assembly connected between the swing arm assembly or the rotating plate assembly and the lock hook, wherein the lock hook is rotatably arranged on the bottom plate; the swing arm assembly comprises a first swing arm located above and a second swing arm located below, the traction assembly comprises a traction rope, one end of the traction rope is fixed on the lock hook, and the other end of the traction rope is fixed on the first swing arm or the rotating plate.

Description

Car door locking knife device, door machine and elevator

Technical Field

The utility model relates to the technical field of door knives, door cranes and elevators, in particular to a car door lock door knife device of an elevator, a door crane comprising the car door lock door knife device and an elevator comprising the car door lock door knife device or the door crane.

Background

In order to meet the national standard of the elevator industry, the door lock door knife of the elevator car door is widely used at present. In the running process of the elevator, when the elevator car and the landing are leveled, the elevator door locking knife drives the landing door linkage door ball at the landing door side to be linked together, so that the action of opening and closing the elevator door is realized. And can effectively prevent the door from being pulled off in the non-flat layer area, improve the security performance of the elevator.

However, the mechanical structure of the existing mainstream car door locking knife is complex, and the number of parts which are arranged independently is large, the modularization is small, so that the car door lock is high in manufacturing cost, the matching requirement of the parts is high, the process precision requirement is high, the installation mode is complex, meanwhile, the occupied space is large, and after-sales and maintenance are inconvenient.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model provides an improved car door lock door vane device which is suitable for an elevator, mechanical stability of the door machine is not lost while parts of the door machine are simplified, the structure is simple and reliable, the modular design is realized, the movement process is simple, and the installation and debugging as well as the subsequent maintenance are more convenient.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The car door lock door knife device comprises a bottom plate, a lock hook, a rotating plate assembly, a swing arm assembly, a knife arm assembly and a traction assembly connected between the swing arm assembly or the rotating plate assembly and the lock hook, wherein the lock hook is rotatably arranged on the bottom plate; the swing arm assembly comprises a first swing arm located above and a second swing arm located below, the traction assembly comprises a traction rope, one end of the traction rope is fixed on the lock hook, and the other end of the traction rope is fixed on the first swing arm or the rotating plate. The floor body and the floor sides lie in different planes.

According to some preferred embodiments of the present utility model, one end of the traction rope is fixed on the latch hook, a rope wheel is arranged on the rotating plate, and the other end of the traction rope bypasses the rope wheel and is fixed on the rotating plate.

According to some preferred embodiments of the utility model, the fixing point of the traction rope on the rotating plate is located between the sheave and the locking hook.

Preferably, the distance between the fixed point of the traction rope on the rotating plate and the rotating center of the rotating plate is larger than the distance between the axle center of the rope wheel and the rotating center of the first swing arm.

That is, in some embodiments, a rope wheel is fixed on the first swing arm, one end of the traction rope is fixed on the rotating plate, the other end of the traction rope is fixed with the lock hook after bypassing the rope wheel, and due to the fact that the rotation of the rotating plate and the rotation of the first swing arm are independent, through the arrangement, the rotation of the rotating plate can drive the movement of the end of the traction rope, the rotation of the first swing arm drives the movement of the rope wheel, after the rotating plate and the first swing arm rotate in place, the gate ball counteracts the gate knife, the swing arm is driven by the gate knife to push down the rope wheel, the traction rope is tensioned, and then the lock hook is lifted, so that unlocking is achieved.

According to some preferred embodiments of the present utility model, the rotating plate includes a rotating plate body, an upper extension portion extending upward from the rotating plate body, and a side extension portion extending from the upper extension portion toward the side portion of the bottom plate, and the link mechanism includes a first link and a second link rotatably provided, one end of the first link is rotatably connected to the side extension portion, the other end of the first link is rotatably connected to the second link, and the other end of the second link is rotatably connected to the upper end of the side portion of the bottom plate.

According to some preferred embodiments of the utility model, a baffle is provided on the side of the base plate, the baffle being adapted to block the rotational position of the rotating plate. Meanwhile, the upper surface of the baffle is contacted with the lower surface of the first connecting rod and the second connecting rod when the first connecting rod and the second connecting rod form a straight line, so that excessive rotation in two directions of the rotating plate can be avoided, and the return can not be realized.

According to some preferred embodiments of the present utility model, the first link and the second link are rotated by a link shaft, the end of the link shaft is provided with a roller, and the door lock vane device includes a boss for lifting or lowering the position of the roller when the first link and the second link are positioned on the same line so that an included angle is formed between the first link and the second link. The roller and the connecting rod are positioned on different vertical planes so as to avoid interference of the boss on the connecting rod. Preferably, the boss is disposed below the roller such that when the roller passes over the boss, the boss pushes the roller upward to pass over the dead point position, such that an included angle is formed between the first link and the second link to effect folding between the first link and the second link.

According to some preferred embodiments of the utility model, the rotating plate is provided with a connecting shaft connected with the door driving device. The door machine driving device drives the whole car door lock door knife device to move through the connecting shaft.

According to some preferred embodiments of the present utility model, the buffer assembly comprises a first guide rod rotatably arranged on the rotating plate and a first elastic member sleeved on the first guide rod, the base plate body is provided with a first fixing plate for installing the buffer assembly, and the first fixing plate is provided with a limiting member for limiting the first guide rod. When the door is closed, the door operator driving device drives the car door locking door knife device to move towards the door closing direction, at the moment, the first connecting rod and the second connecting rod are positioned on the same straight line, and when the idler wheels on the rotating shafts of the connecting rods pass through the boss, the first connecting rod and the second connecting rod are folded. When first connecting rod and second connecting rod are folding, the pivoted plate is rotated continually, but if there is not buffer assembly, only the pivoted plate is rotated, and can not drive sedan-chair door lock door sword device and remove in the horizontal direction, can form "secondary door closing", causes hidden danger and bad use experience. Through setting up buffer unit, the elastic force that wherein first elastic component provided is used for the elastic buffer connection between one side of rotating plate and the bottom plate body for when rotating the rotating plate pivoted, sedan-chair lock door sword device moved simultaneously in the horizontal direction, avoided "secondary to close the door".

According to some preferred embodiments of the present utility model, the limiting member is provided with a limiting hole for the first guide rod to pass through, and the diameter of the limiting hole is larger than the outer diameter of the first guide rod; the bottom of first guide bar is provided with and is used for blockking the blocking portion of first elastic component, the one end of first elastic component acts on the blocking portion, the other end of first elastic component acts on the locating part. The upper end of the first guide rod is rotationally connected with the rotating plate, when the rotating plate rotates, the first guide rod moves in the left-right direction in a small amplitude manner, and the first guide rod does not interfere with the movement of the first guide rod when being limited by arranging the limiting piece and the limiting hole with larger diameter. The first elastic piece is limited between the limiting piece and the blocking part at the bottom of the first guide rod, and the blocking part moves upwards to compress the first elastic piece when the first guide rod moves upwards.

According to some preferred embodiments of the present utility model, the rotation connection portion of the rotation plate and the first guide rod and the first elastic member are located at two sides of the first fixing plate, respectively; the limiting piece is located between the first fixing plate and the top of the first elastic piece.

According to some preferred embodiments of the utility model, the rotating plate includes a first ear extending from the rotating plate body to a side away from the latch hook, and an upper end portion of the first guide lever is rotatably connected to the first ear.

According to some preferred embodiments of the utility model, the rotating plate comprises a second ear extending from the rotating plate body to a side close to the latch hook, and a mounting member for fixing one end of the traction rope is arranged on the second ear. In some embodiments, the two ends of the traction rope are fixed with fixing parts with larger diameters, the mounting piece is a screw or a screw, and the ends of the traction rope are fixed after passing through the space between the two screws or the screws.

According to some preferred embodiments of the present utility model, a mounting plate is fixed on the first swing arm, a rope sheave is mounted on the mounting plate, one end of the hauling rope is fixed on the lock hook, and the other end of the hauling rope bypasses the rope sheave and is then fixed on the second ear by the mounting piece. The end parts of the mounting plate and the traction rope are respectively fixed on the first swing arm and the rotating plate, so that the end parts of the traction rope are driven to move through the rotation of the rotating plate, the rope wheel is driven to move through the rotation of the rotating plate, and the traction rope is tensioned through the movement of the rope wheel, so that the lock hook is driven to unlock.

According to some preferred embodiments of the utility model, the thickness of the first swing arm is equal to or greater than the thickness of the rope sheave, the first swing arm has an arc edge matched with the rope sheave, and a part of the edge of the rope sheave is close to the arc edge for preventing the traction rope from being separated from the rope sheave.

According to some preferred embodiments of the present utility model, one end of the latch hook is rotatably connected below the side portion through a latch hook rotating shaft, a rotating wheel is arranged on the rotating shaft, a rope groove for accommodating the traction rope is formed in the surface of the rotating wheel along the circumferential direction, and the end portion of the traction rope passes through the rope groove of the rotating wheel and is fixed on the latch hook.

According to some preferred embodiments of the utility model, the traction assembly comprises an adjustment mechanism comprising an adjustment hole extending through the thickness of the shackle, an adjustment pin secured within the adjustment hole, and an end of the traction rope secured between the wheel and the adjustment pin.

According to some preferred embodiments of the utility model, the adjustment aperture is an elongated aperture that opens in the direction of rotation of the shackle. The end of the traction rope fixed on the locking hook is also provided with a fixing part with a larger diameter, so that the end of the traction rope is fixed between the rotating wheel and the adjusting pin. Meanwhile, the position of the adjusting pin can be adjusted through the adjusting hole, so that the position of the end part of the traction rope can be adjusted, and the device is suitable for actual product specifications on site.

According to some preferred embodiments of the present utility model, the pressing assembly includes a second guide rod rotatably disposed on the latch hook at one end thereof and a second elastic member sleeved on the second guide rod, and the bottom plate side is provided with a second fixing plate, one end of the second elastic member acts on the latch hook, and the other end of the second elastic member acts on the second fixing plate.

According to some preferred embodiments of the present utility model, the cutter arm assembly includes a first cutter arm and a second cutter arm, and upper ends of the first cutter arm and the second cutter arm are rotatably connected to the first swing arm through a first swing arm rotating shaft; the lower ends of the first cutter arm and the second cutter arm are rotationally connected to the second swing arm through a second swing arm rotating shaft, and the first cutter arm and the second cutter arm are arranged in the vertical direction.

According to some preferred embodiments of the present utility model, the first swing arm is rotatably connected to the rotating plate and the bottom plate through a first rotation shaft, that is, the rotation center of the first swing arm and the rotation center of the rotating plate in the present utility model are the same, and are both the first rotation shafts; the second swing arm is rotationally connected with the bottom plate through a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged along the vertical direction.

The utility model also provides a door machine and an elevator comprising the car door locking door knife device.

In some embodiments, the door machine comprises a door machine bottom plate, a driving device, a first sliding plate and a second sliding plate which are arranged on the door machine bottom plate in a sliding manner, wherein the driving device comprises a synchronous belt and a driver for driving the synchronous belt to move, a car door locking door knife device is arranged on the first sliding plate, and a rotating plate of the car door locking door knife device and the second sliding plate are connected with the synchronous belt. The boss is arranged on the bottom plate of the door machine.

Compared with the prior art, the utility model has the following advantages: according to the car door locking door knife device, all parts are modularized, so that the rotating plate assembly, the swing arm assembly, the knife arm assembly, the traction assembly for locking and unlocking and other modules are formed, the mechanical structure is simplified on the premise that the mechanical stability is not lost, the movement process is simpler, the installation and debugging and the subsequent maintenance are more convenient, the preparation process and the manufacturing cost are further simplified, and the secondary door closing is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a door locking knife assembly of an elevator in a non-landing position with the elevator door closed in place in accordance with a preferred embodiment of the present utility model;

Fig. 2 is a schematic view of a door locking knife device of the elevator in a preferred embodiment of the present utility model when the elevator is closed in place and in a flat landing position (not open);

Fig. 3 is a schematic view of the door locking knife device of the elevator in the flat landing position when the elevator is in place;

Fig. 4 is a schematic view of the structure of the drive link assembly of the preferred embodiment of the present utility model when the elevator door is closed in place and in a non-flat landing position;

Fig. 5 is a schematic view of the structure of the driving link assembly of the elevator door in place and in the flat landing position according to the preferred embodiment of the present utility model;

fig. 6 is a schematic perspective view of a bottom plate of the door lock vane device according to the preferred embodiment of the present utility model;

fig. 7 is a schematic structural view of a mounting plate in a car door lock vane device according to a preferred embodiment of the present utility model;

Wherein: the car door lock door vane device-1, the lock hook-2, the first cutter arm-31, the second cutter arm-32, the bottom plate-4, the bottom plate body-41, the bottom plate side-42, the baffle-43, the first fixed plate-44, the second fixed plate-45, the rotating plate-5, the rotating plate body-51, the upper extension-52, the side extension-53, the first ear-54, the second ear-55, the connecting shaft-56, the link mechanism-6, the first link-61, the second link-62, the link shaft-63, the roller-64, the first swing arm-71, the second swing arm-72, the first swing arm shaft-73, the second swing arm shaft-74, the traction rope-81, the mounting plate-82, the rope pulley-83, the rotating wheel-84, the adjusting hole-85, the adjusting pin-86, the lock hook shaft-87, the mounting piece-88, the first guide rod-91, the first elastic piece-92, the limiting piece-93, the blocking piece-94, the second guide rod-101, the second elastic piece-102, the first elastic piece-111, the second shaft-13, the first pivot-17, the fastening bolt-16, the boss-17, the second pivot-17, the fastening bolt.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.

The elevator in the embodiment comprises a guide rail, a car, a traction machine, a counterweight, a rope sheave assembly connected between the car and the counterweight and a landing door arranged on the wall of the hoistway corresponding to each floor. The elevator car is provided with a door machine, and the door machine is used for driving the car door plate to open and close and is matched with the landing door, and the car door plate is driven to open and close synchronously at the same time. The door machine comprises a door machine bottom plate, a driving device, a first sliding plate and a second sliding plate which are arranged on the door machine bottom plate in a sliding mode, wherein the driving device comprises a synchronous belt and a driver used for driving the synchronous belt to move, a car door lock door knife device 1 is arranged on the first sliding plate, and a rotating plate 5 and the second sliding plate of the car door lock door knife device 1 are connected with the synchronous belt.

As shown in fig. 1 to 7, the door vane device 1 of the car door lock in this embodiment includes a base plate 4, a lock hook 2 cooperating with a fixed lock seat on the car door, a rotating plate assembly, a swing arm assembly, a cutter arm assembly, a buffer assembly, a pressing assembly for providing the lock hook 2 with a downward rotation tendency, a traction assembly connected between the swing arm assembly or the rotating plate assembly and the lock hook 2, and a boss 13, and the lock hook 2 is rotatably disposed on the base plate 4 through a lock hook rotating shaft 87. The traction component is used for driving the latch hook 2 to rotate so as to unlock or lock, and locking and unlocking of the door knife device 1 are realized through cooperation of the latch hook 2 and a fixed hook (not shown) which is fixedly arranged on the door machine and is positioned on the right side of the latch hook 2. The switch assembly 16 is arranged on the lock hook 2 and used for verifying whether the lock hook 2 and the fixed hook are locked in place, and the switch assembly 16 can be electrified only when the lock hook 2 and the fixed lock seat are locked, so that the elevator continues to operate.

The base plate 4 includes a base plate body 41 and a base plate side portion 42 extending upward from a side of the base plate body 41 adjacent to the latch hook 2, the base plate body 41 and the base plate side portion 42 being located on different planes. The rotating plate assembly includes a rotating plate 5 and a link mechanism 6, one end of the link mechanism 6 is rotatably disposed at an upper end of the bottom plate side portion 42 through a second link pin 152, the other end of the link mechanism 6 is rotatably disposed at an upper end of the rotating plate 5 through a first link pin 151, and a lower end of the rotating plate 5 is rotatably disposed on the bottom plate body 41 through a first rotation shaft 111.

The swing arm assembly comprises a first swing arm 71 positioned above and a second swing arm 72 positioned below, the cutter arm assembly comprises a first cutter arm 31 and a second cutter arm 32, and the upper ends of the first cutter arm 31 and the second cutter arm 32 are rotatably connected to the first swing arm 71 through a first swing arm rotating shaft 73; the lower ends of the first and second cutter arms 31 and 32 are rotatably connected to the second swing arm 72 through a second swing arm rotation shaft 74, and the first and second cutter arms 31 and 32 are disposed in the vertical direction. The first swing arm 71 is rotationally connected with the rotating plate 5 and the bottom plate 4 through a first rotating shaft 111, and the rotation center of the first swing arm in the embodiment is the same as that of the rotating plate, but the rotation of the first swing arm and the rotation plate are not synchronous; the second swing arm 72 is rotatably connected with the base plate 4 through a second rotation shaft 112, and the first rotation shaft 111 and the second rotation shaft 112 are disposed in the vertical direction.

Namely, in the present embodiment, the first cutter arm 31 and the second cutter arm 32 are hinged to the first swing arm 71 and the second swing arm 72 through two first swing arm rotating shafts 73 and two second swing arm rotating shafts 74, respectively, to form a parallelogram. The rotation of the rotating plate 5 can drive the swing arm to rotate within the range of the limiting structure of the rotating plate 5, so that the driven energy is transmitted to the swing arm to act, the clamping and the loosening of the cutter arm are realized, the action range is limited, and the protection components cannot interfere with each other.

The traction assembly comprises a traction rope 81 and an adjusting mechanism, one end of the traction rope 81 is fixed on the lock hook 2, and the other end of the traction rope 81 is fixed on the rotating plate 5. The traction rope 81 is a rope having no elasticity, such as a wire rope. In the door opening process of the elevator car door, the rotating plate 5 rotates, the first swing arm rotates, and the first cutter arm 31 and the second cutter arm 32 clamp the gate ball 14; after the rotating plate 5 and the first swing arm rotate in place, the second cutter arm 32 is pushed by the gate ball 14, the first swing arm reversely rotates to drive the rope pulley 83 to move to the side far away from the lock hook, and then the traction rope is tensioned to drive the car door lock hook 2 to be separated from the fixed lock seat. The structure of each component and the connection relationship between each component are described in detail below:

The rotating plate 5 includes a rotating plate body 51, an upper extension portion 52 extending upward from the rotating plate body 51, a side extension portion 53 extending from the upper extension portion 52 toward the side portion 42 near the bottom plate, and a first ear portion 54 and a second ear portion 55 extending outward from both sides of the rotating plate body 51, respectively, the link mechanism 6 includes a first link 61 and a second link 62 rotatably provided, one end of the first link 61 is rotatably connected with the side extension portion 53 through a first link pin 151, the other end of the first link 61 is rotatably connected with the second link 62 through a link rotation shaft 63, and the other end of the second link 62 is rotatably connected with the upper end of the side portion 42 through a second link pin 152.

The end of the link rotation shaft 63 is provided with a roller 64, and the boss 13 is used to raise or lower the position of the roller 64 when the first link 61 and the second link 62 are positioned on the same line so that an angle is formed between the first link 61 and the second link 62. The roller 64 and the link are located in different vertical planes to avoid interference of the boss 13 with the link.

As shown in fig. 4-5, the boss 13 in the present embodiment is disposed below the roller 64, such that when the roller 64 passes the boss 13, the boss 13 pushes the roller 64 upward to pass over the dead point position, such that an angle is formed between the first link 61 and the second link 62 to achieve folding between the first link 61 and the second link 62. The boss 13 in this embodiment includes a horizontal section for elevating the height of the roller 64 in the middle and inclined surfaces on both sides of the horizontal section for facilitating contact between the roller 64 and the boss 13. The bottom end of the incline is lower than the bottom surface of the roller 64, and the top end of the incline, i.e., the horizontal section, is higher than the bottom surface of the roller 64 for elevating the height of the roller 64. In the figure, in order to show the positional relationship between the boss 13 and the roller 64, the boss 13 is shown together in the figure, and in practice, the boss 13 is fixedly provided on the door operator floor and does not move in response to the movement of the car door locking door vane device 1.

The bottom plate side part 42 is provided with a backward bent baffle 43, and the plane where the baffle 43 is positioned is mutually perpendicular to the plane where the rotating plate rotates. The shutter 43 serves to restrict the rotational limit position of the rotation plate 5 to prevent the rotation of the rotation plate from exceeding the use requirement. Meanwhile, the upper surface of the baffle 43 is contacted with the lower surface when the first connecting rod 61 and the second connecting rod 62 form a straight line, so as to avoid excessive rotation of the rotating plate 5 in two directions and incapability of returning. The rotating plate 5 is provided with a connecting shaft 56 connected to the door driving device. The door machine driving device drives the whole car door lock door knife device 1 to move through the connecting shaft 56.

In this embodiment, the track terminal of the rotating plate assembly has two states, one is rotated to the dead point position, and at this time, the first link 61 and the second link 62 are located on the same line; the other state is to swing to the shutter 43 position. The operation position of the link mechanism 6 is associated with the rotation limit position of the rotation plate 5, and the rotation plate 5 and the link mechanism 6 are stroke-constrained to each other. In the opening process of the elevator car door, the rotating plate 5 is gradually far away from the baffle 43, and the rotating plate 5 drives the link mechanism 6 to rotate to the dead point. During the closing process of the elevator door, the rotating plate 5 gradually approaches the baffle 43, the boss 13 is used for releasing the dead point state of the link mechanism 6, and the baffle 43 is used for limiting the moving range of the rotating plate 5.

The buffer component and the link mechanism are respectively positioned at two sides of the rotating plate. The buffer assembly comprises a first guide rod 91 rotatably arranged on the rotating plate 5 and a first elastic piece 92 sleeved on the first guide rod 91, a first fixing plate 44 for installing the buffer assembly is arranged on the bottom plate body 41, and a limiting piece 93 for limiting the first guide rod 91 is arranged on the first fixing plate 44. The first ear 54 extends from the rotating plate body 51 to a side away from the latch hook 2, and an upper end portion of the first guide lever 91 is rotatably connected to the first ear 54. The buffer assembly provides energy transfer during operation of the rotating plate 5 and the door knife assembly and provides a reset force of the rotating plate 5, so that displacement difference between the rotating part and the inertia part during operation of the door knife is reduced.

The limiting piece 93 is provided with a limiting hole for the first guide rod 91 to penetrate through, and the diameter of the limiting hole is larger than the outer diameter of the first guide rod 91; the bottom of the first guide lever 91 is provided with a blocking portion 94 for blocking the first elastic member 92, one end of the first elastic member 92 acts on the blocking portion 94, and the other end of the first elastic member 92 acts on the stopper 93. The rotary connection part of the rotary plate 5 and the first guide rod 91 and the first elastic piece 92 are respectively positioned at two sides of the first fixed plate 44; the stopper 93 is located between the first fixing plate 44 and the top of the first elastic member 92. Because the upper end of the first guide rod 91 is rotationally connected with the rotating plate 5, when the rotating plate 5 rotates, the first guide rod 91 can move in the left-right direction by a small amplitude, and the limiting piece 93 and the limiting hole with larger diameter are arranged, so that the first guide rod 91 can not be interfered when limiting. The first elastic member 92 is limited between the limiting member 93 and the blocking portion 94 at the bottom of the first guide rod 91, and the blocking portion 94 moves upward while the first guide rod 91 moves upward, so as to compress the first elastic member 92 and further provide an elastic restoring force.

When the door is closed, the door driving device drives the car door locking door knife device 1 to move towards the door closing direction, at the moment, the first connecting rod 61 and the second connecting rod 62 are positioned on the same straight line, and when the roller 64 on the connecting rod rotating shaft 63 passes through the boss 13, the first connecting rod 61 and the second connecting rod 62 are folded. When the first connecting rod 61 and the second connecting rod 62 are folded, the rotating plate 5 continuously rotates, if no buffer component exists, only the rotating plate 5 rotates, and the car door locking door knife device 1 can not be driven to move in the horizontal direction, so that a 'secondary door closing' can be formed, and hidden danger and bad use experience are caused. By providing the buffer assembly, the elastic force provided by the first elastic member 92 is used for elastically buffering connection between one side of the rotating plate 5 and the bottom plate body 41, so that the car door locking door knife device 1 moves in the horizontal direction simultaneously while the rotating plate 5 rotates, and the phenomenon of 'secondary door closing' is avoided.

The second ear portion 55 extends from the rotation plate body 51 to a side close to the latch hook 2, and a mounting piece 88 (screw or screw) for fixing one end of the traction rope 81 is provided on the second ear portion 55. In this embodiment, the fixing portions with larger diameters are fixed to both end portions of the traction rope 81, and the mounting member 88 is a screw or a screw, and the end portions of the traction rope 81 are fixed after passing between the two screws or screws. The fixed point of the traction rope on the rotating plate is positioned between the rope pulley and the lock hook; and preferably, the distance between the fixed point of the traction rope on the rotating plate and the rotating center of the rotating plate is larger than the distance between the axle center of the rope wheel and the rotating center of the first swing arm, so that when the end part of the traction rope is fixed, the traction rope is tensioned through the movement of the rope wheel, and further unlocking is realized.

The first swing arm 71 is fixed with a mounting plate 82 shown in fig. 7 by a fastening screw 17, the mounting plate 82 is provided with a rope pulley 83, one end of the traction rope 81 is fixed on the lock hook 2, and the other end of the traction rope 81 is fixed on the second ear 55 by a mounting piece 88 after bypassing the rope pulley 83. That is, the mounting plate 82 and the end of the traction rope 81 are respectively fixed on the first swing arm 71 and the rotating plate 5, so that the movement of the end of the traction rope 81 is driven by the rotation of the rotating plate 5, and because the rotation of the rotating plate 5 and the rotation of the first swing arm 71 are independent, the movement of the end of the traction rope 81 is driven by the rotation of the rotating plate 5, the movement of the rope pulley is driven by the rotation of the first swing arm 71, and after the rotating plate 5 moves in place, the position of the end of the traction rope 81 is fixed, at the moment, the first swing arm is driven to reversely rotate by the acting force of the tool arm through the gate ball, the rope pulley moves to one side far away from the lock hook, the traction rope 81 is tensioned, the lock hook is lifted, and the unlocking is realized. When the end of the traction rope 81 is fixed, the sheave 83 in this embodiment is a movable sheave, the traction rope 81 is converted into rotational displacement of the latch hook 2 by displacement of the movable sheave, and the movement of the latch hook 2 is powered by the sheave and the traction rope 81.

Meanwhile, in this embodiment, the thickness of the first swing arm 71 is equal to or greater than the thickness of the sheave 83, the first swing arm 71 has an arcuate edge that mates with the sheave 83, and a part of the edge of the sheave 83 is close to the arcuate edge (the distance is at least smaller than the diameter of the traction rope 81), so that the arcuate edge can form the anti-slip protection of the sheave 83, and at the same time, prevent a certain degree of contamination from entering the condition that causes abnormal traction mating.

One end of the lock hook 2 is rotatably connected below the side portion 42 through a lock hook rotating shaft 87, a rotating wheel 84 is coaxially arranged on the lock hook rotating shaft 87, a rope groove for accommodating the traction rope 81 is formed in the surface of the rotating wheel 84 along the circumferential direction, and the end portion of the traction rope 81 passes through the rope groove of the rotating wheel 84 and is then fixed on the lock hook 2.

The adjusting mechanism of the traction assembly comprises an adjusting hole 85 penetrating through the thickness direction of the lock hook 2 and an adjusting pin 86 fixed in the adjusting hole 85, and the end part of the traction rope 81 is fixed between the rotating wheel 84 and the adjusting pin 86. The adjustment hole 85 is an elongated hole that is opened in the rotation direction of the latch hook 2. The end of the traction rope 81 fixed to the latch hook 2 also has a fixing portion having a larger diameter so that the end of the traction rope 81 is fixed between the rotating wheel 84 and the regulating pin 86. Meanwhile, the position of the adjusting pin 86 can be adjusted through the adjusting hole 85, so that the position of the end part of the traction rope 81 can be adjusted, and the device is suitable for actual product specifications on site. That is, in the present application, the rope groove of the wheel 84 is engaged with the adjusting mechanism, on the one hand, for preventing the pull rope 81 from falling off; on the one hand, the position of the rope end can be moved, and the effective action length of the traction rope 81 can be adjusted.

The pressing component comprises a second guide rod 101 with one end rotatably arranged on the lock hook 2 and a second elastic piece 102 sleeved on the second guide rod 101, a second fixing plate 45 is arranged on the side part 42 of the bottom plate, one end of the second elastic piece 102 acts on the lock hook 2, and the other end of the second elastic piece 102 acts on the second fixing plate 45. The pressing component is used for providing acting force for the lock hook 2 when the lock hook 2 is closed into the fixed hook, so that the lock hook 2 is ensured to be kept in a locking state when in a non-flat layer position. The first elastic member 92 and the second elastic member 102 in this embodiment are both springs; the first fixing plate 44 and the second fixing plate 45 are bent forward from the bottom plate, that is, the baffle 43 and the first fixing plate 44 and the second fixing plate 45 are respectively located at two sides of the bottom plate 4.

The following outline is the operation process of the car door lock vane device 1 of the present embodiment in the opening and closing process of the elevator door:

Referring to fig. 1, when the elevator door is closed in place, the rotating plate 5 is folded against the baffle 43 located at the side 42 of the door knife bottom plate, the first link 61 and the second link 62, the sheave 83 is not rotated, and the latch hook 2 is engaged in the fixed hook at this time, and the door knife device 1 is locked. At this time, the elevator can continue to run up and down or to a certain level to be opened.

Referring to fig. 2 and 3, when the elevator is gradually opened from a closed door state, at which time the car just runs to a certain level, two door balls 14 of the landing door are located within the length range of the first and second cutter arms 31 and 32, but the door balls 14 are not clamped (as shown in fig. 2). Along with the transmission of the driving device, the rotating plate 5 is driven to move anticlockwise from the right side to the left side, the first connecting rod 61 and the second connecting rod 62 are driven to rotate to the dead point (the first connecting rod 61 and the second connecting rod 62 are positioned on the same straight line), and at the moment, the rotating plate 5 is not rotated any more. In the process of rotating the rotating plate 5, the first swing arm 71 is driven by the traction rope and the rope wheel to rotate, so that the parallelogram formed by hinging the first swing arm 71 and the second swing arm 72 with the first cutter arm 31 and the second cutter arm 32 is deformed, the first cutter arm 31 and the second cutter arm 32 are close to each other, and the first cutter arm 31 and the second cutter arm 32 clamp the gate ball 14. After the rotating plate and the first swing arm rotate in place, the end part of the traction rope is fixed, at the moment, the gate ball 14 touches the first knife arm 31 and the second knife arm 32 to apply a horizontal acting force to the first knife arm 31 and the second knife arm 32, so that the first knife arm 31 and the second knife arm 32 expand outwards, the first swing arm 71 and the second swing arm 72 are driven to rotate, the rope pulley 83 is driven to move to a side far away from the lock hook, the traction rope is tensioned, the lock hook 2 is driven to lift upwards, the lock hook 2 is separated from the fixed hook, the gate knife device 1 is unlocked, and the gate is opened. Then, in the limited state of the rotating plate 5, the synchronous belt drives the whole door knife device 1 to move leftwards, and in the process, the landing door and the car door are gradually opened to be opened in place due to the fact that the first knife arm 31 and the second knife arm 32 are clamped with the gate ball 14.

As shown in fig. 3, when the elevator gradually closes the door from the door opening state, the driving device drives the whole door knife device 1 to gradually move rightward, at this time, the first connecting rod 61 and the second connecting rod 62 are still in the locking state and cannot rotate, when the door knife device 1 moves to the boss 13 fixed on the door machine, the boss 13 lifts the roller upward and releases the locking state of the first connecting rod 61 and the second connecting rod 62, the rotating plate 5 rotates rightward under the driving of the synchronous belt, the first connecting rod 61 and the second connecting rod 62 are driven to fold, the rotation of the rotating plate 5 enables the end part of the traction rope to move to the side far away from the lock hook, the rotation of the first swing arm 71 and the rope sheave 83 move, so that the lock hook 2 falls down and is locked with the fixed hook, the elevator closes the door in place, and the switch assembly 16 is electrified to verify whether the door lock is closed in place. When the rotation of the rotation plate 5 drives the first swing arm 71 to rotate, the first cutter arm 31 and the second cutter arm 32 are further driven to move in the direction away from each other, so that the first cutter arm 31 and the second cutter arm 32 release the gate ball 14. The car can now run upwards or downwards.

Namely, when the car door is opened, the rotating plate 5 rotates anticlockwise along the opening direction, the distance between the first cutter arm 31 and the second cutter arm 32 is reduced, the door ball 14 is clamped, after the end part of the traction rope is fixed, the door ball 14 reversely pushes the cutter arm assembly to rotate, the movable pulley (rope wheel) moves in the direction away from the lock hook, the traction rope 81 drives the car door lock hook 2 to rotate anticlockwise, and the car door lock hook 2 compresses the lock hook 2 spring upwards. When the car door is closed, the rotating plate 5 rotates clockwise, the distance between the first cutter arm 31 and the second cutter arm 32 is increased, the door ball 14 is separated from the cutter arms, the spring of the lock hook 2 applies downward pressure to the car door lock hook 2, and the lock hook 2 is kept in a downward closed state in a non-flat layer area.

According to the elevator car door locking door knife device, the door lock is triggered by the cooperation between the traction rope of the flexible mechanism and the movement of the rope pulley, the movable pulley of the rope pulley is used for replacing the traditional connecting rod or cam to drive and unlock, the relation between parts in the action process is not separated, the triggering parts of the intermediate mechanism are reduced, the flexible traction mechanism is used for simplifying the track to ensure the opening and closing of the lock hook 2 in place, the adjustable range is wider, the installation and debugging are convenient, the modularized design is realized by the rotating plate assembly, the cutter arm assembly, the lock hook and the traction rope assembly, different modules can be disassembled and combined, the universality of parts is enhanced, the limit noise and the friction resistance can be reduced, the cost is greatly reduced, and the mechanism can be smoothly operated and maintained simply after being simplified; and can effectively avoid 'secondary closing door', has promoted riding comfort.

In the prior art, the flexible traction mechanism between the lock hook and the door knife has the advantages that only two end points of the traction rope are fixed, the linkage guide is not provided, the unexpected movement protection is not generated in the traction process, three-dimensional space distortion, deviation and shaking can easily occur when the external environments such as action process and unexpected impact and the use conditions are influenced, and even the three-dimensional space distortion, deviation and shaking and the failure risks such as scraping and interference with other parts and noise are generated; such a structure cannot be applied to a car environment having high up-and-down movement; only two sections of fixed flexible traction mechanisms are adjusted without a quantized adjusting mode, the flexible structure is lack of guidance in the action process, random and out-of-control states in adjustment exist in a certain displacement range, the running stability and accuracy of the whole mechanism are lost, and more control cost investment is increased for mass production realization and later maintenance operation; the traction wire rope has a fixed guiding structure, so that friction between the wire rope and a guiding material is necessarily generated when the wire rope is tensioned, the service life of the wire rope is inevitably shortened, and the risk of failure of the action of the wire rope is increased.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (22)

1. The car door lock door knife device is characterized by comprising a bottom plate, a lock hook, a rotating plate assembly, a swing arm assembly, a knife arm assembly and a traction assembly connected between the swing arm assembly or the rotating plate assembly and the lock hook, wherein the lock hook is rotatably arranged on the bottom plate; the swing arm assembly comprises a first swing arm located above and a second swing arm located below, the traction assembly comprises a traction rope, one end of the traction rope is fixed on the lock hook, and the other end of the traction rope is fixed on the first swing arm or the rotating plate.

2. The car door lock door vane device according to claim 1, wherein one end of the traction rope is fixed on the lock hook, a rope wheel is arranged on the rotating plate, and the other end of the traction rope is fixed on the rotating plate after bypassing the rope wheel.

3. The car door lock vane device of claim 2, wherein the fixed point of the traction rope on the rotating plate is located between the sheave and the shackle.

4. The car door lock door knife device according to claim 2, wherein the rotating plate comprises a rotating plate body, an upper extending portion extending upward from the rotating plate body, and a side extending portion extending from the upper extending portion toward a side portion close to the bottom plate side portion, the link mechanism comprises a first link and a second link which are rotatably provided, one end of the first link is rotatably connected with the side extending portion, the other end of the first link is rotatably connected with the second link, and the other end of the second link is rotatably connected with an upper end of the bottom plate side portion.

5. The car door lock vane device according to claim 1, wherein a shutter is provided on a side portion of the bottom plate, the shutter serving to block a rotational position of the rotational plate.

6. The car door lock vane device of claim 4, wherein the first link and the second link are rotated by a link shaft, a roller is provided at an end of the link shaft, and the car door lock vane device includes a boss for lifting or lowering a position of the roller when the first link and the second link are positioned on the same line such that an included angle is formed between the first link and the second link.

7. The car door lock vane device according to claim 4, wherein a connection shaft connected to the door driving device is provided on the rotating plate.

8. The car door lock door vane device according to claim 4, comprising a buffer assembly, wherein the buffer assembly comprises a first guide rod rotatably arranged on the rotating plate and a first elastic member sleeved on the first guide rod, a first fixing plate for installing the buffer assembly is arranged on the base plate body, and a limiting member for limiting the first guide rod is arranged on the first fixing plate.

9. The car door lock door knife device according to claim 8, wherein a limiting hole for the first guide rod to penetrate is formed in the limiting piece, and the diameter of the limiting hole is larger than the outer diameter of the first guide rod; the bottom of first guide bar is provided with and is used for blockking the blocking portion of first elastic component, the one end of first elastic component acts on the blocking portion, the other end of first elastic component acts on the locating part.

10. The car door lock vane device according to claim 9, wherein the rotational connection of the rotational plate and the first guide bar and the first elastic member are located on both sides of the first fixed plate, respectively; the limiting piece is located between the first fixing plate and the top of the first elastic piece.

11. The car door lock vane device according to claim 8, wherein the rotating plate includes a first ear extending from the rotating plate body to a side away from the locking hook, and an upper end portion of the first guide lever is rotatably connected to the first ear.

12. The car door lock vane device according to claim 4, wherein the rotating plate includes a second ear extending from the rotating plate body to a side close to the locking hook, and a mounting member for fixing one end of the traction rope is provided on the second ear.

13. The car door lock door vane device according to claim 12, wherein a mounting plate is fixed on the first swing arm, the rope sheave is mounted on the mounting plate, one end of the haulage rope is fixed on the lock hook, and the other end of the haulage rope is fixed on the second ear by the mounting member after bypassing the rope sheave.

14. The car door lock door knife device according to claim 13, wherein the thickness of the first swing arm is equal to or greater than the thickness of the rope sheave, the first swing arm has an arc edge matched with the rope sheave, and a part of the edge of the rope sheave is close to the arc edge for preventing the traction rope from being separated from the rope sheave.

15. The car door lock door vane device according to claim 1, wherein one end of the lock hook is rotatably connected to the lower portion of the side portion through a lock hook rotating shaft, a rotating wheel is arranged on the lock hook rotating shaft, a rope groove for accommodating the traction rope is formed in the surface of the rotating wheel along the circumferential direction, and the end portion of the traction rope is fixed to the lock hook after passing through the rope groove of the rotating wheel.

16. The car door lock vane device of claim 15, wherein the traction assembly includes an adjustment mechanism including an adjustment hole extending through a thickness direction of the shackle, an adjustment pin secured within the adjustment hole, and an end of the traction rope secured between the wheel and the adjustment pin.

17. The car door lock vane device of claim 16, wherein the adjustment aperture is an elongated aperture that opens in a direction of rotation of the shackle.

18. The car door lock door vane device according to claim 1, comprising a pressing component for providing the lock hook with a downward rotation tendency, wherein the pressing component comprises a second guide rod with one end rotatably arranged on the lock hook and a second elastic member sleeved on the second guide rod, a second fixing plate is arranged on the side part of the bottom plate, one end of the second elastic member acts on the lock hook, and the other end of the second elastic member acts on the second fixing plate.

19. The car door lock vane device of any one of claims 1-18, wherein the vane arm assembly includes a first vane arm and a second vane arm, the upper ends of the first and second vane arms being rotatably coupled to the first swing arm by a first swing arm shaft; the lower ends of the first cutter arm and the second cutter arm are rotationally connected to the second swing arm through a second swing arm rotating shaft, and the first cutter arm and the second cutter arm are arranged in the vertical direction.

20. The car door lock door knife device of claim 19, wherein the first swing arm is rotatably connected to the rotating plate and the bottom plate through a first rotating shaft, the second swing arm is rotatably connected to the bottom plate through a second rotating shaft, and the first rotating shaft and the second rotating shaft are arranged in a vertical direction.

21. A door machine comprising a car door locking vane device according to any one of claims 1 to 20.

22. An elevator comprising a car door locking vane device according to any one of claims 1-20 or a door machine according to claim 21.