CN219751572U

CN219751572U - Rope clamping device for elevator

Info

Publication number: CN219751572U
Application number: CN202321023217.5U
Authority: CN
Inventors: 张永胜
Original assignee: Langfang Lanxu Mechanical Equipment Co ltd
Current assignee: Langfang Lanxu Mechanical Equipment Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-09-26
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a rope clamping device for an elevator, which comprises a rope clamping device body, wherein a fixed clamping plate and a movable clamping plate are correspondingly arranged on the rope clamping device body, the movable clamping plate is connected with a pressing block for driving the movable clamping plate to be close to the fixed clamping plate or far away from the fixed clamping plate, the pressing block is connected onto the rope clamping device body in a sliding manner along the vertical direction, the lower end of the pressing block is provided with a buffer spring arranged on the rope clamping device body, and a driving mechanism for driving the pressing block to slide downwards is arranged above the pressing block; the rope clamping device body is also provided with a locking mechanism, and when the pressing block slides downwards and drives the movable clamping plate to loosen the elevator stay cord, the locking mechanism acts and presses the pressing block at the upper end of the pressing block. The utility model can lock the pressing block by using the locking mechanism, prevent the pressing block from continuously providing reverse pressure for the driving mechanism under the action of the buffer spring, further cause damage to the driving mechanism in the long-term use process, and improve the safety of the equipment in operation.

Description

Rope clamping device for elevator

Technical Field

The utility model belongs to the technical field of elevators, and particularly relates to a rope clamping device for an elevator.

Background

An elevator refers to a permanent transport device serving a number of specific floors within a building with its car running in at least two columns of rigid rails running perpendicular to the horizontal or inclined at an angle of less than 15 ° to the plumb line. There are also steps, where the tread is mounted on a track for continuous running, commonly known as an escalator or a travelator. A stationary lifting device serving a prescribed floor. The vertical lift elevator has a car running between at least two rows of rigid guide rails that are vertical or have an incline angle of less than 15. The size and the structural form of the lift car are convenient for passengers to get in and out or load and unload cargoes. Traditionally, elevators have been known as vertical transportation means within a building, regardless of the manner in which they are driven. The low-speed elevator (below 4 m/s), the quick elevator (4-12 m/s) and the high-speed elevator (above 12 m/s) can be divided according to the speed. Hydraulic elevators began to appear in the middle of the 19 th century and have been used in low-rise buildings to date. In 1852, e.g. ottes in the united states developed a rope lift safety elevator. In the 80 s, the driving device is further improved, such as a motor drives a winding drum through worm transmission, a counterweight is adopted, and the like. At the end of the 19 th century, friction wheel transmission is adopted, so that the lifting height of the elevator is greatly increased.

Industry data show that the increase rate of the whole elevator production in China exceeds 10% in the first half of 2014, the delivery quantity in the next half is reduced compared with the order, but the annual sales increase rate is kept around 10%, and the annual increase rate is slowed down compared with the previous year. But the total yield of the whole elevator in the whole year breaks through 70 ten thousand, so that the total elevator reserve in the whole country can reach more than 360 ten thousand. The world industry is the world factory and manufacturing center in the elevator field, and the main elevator brand enterprises in the world all establish exclusive or joint venture enterprises in China. Worldwide 70% of elevators are manufactured in china and 70% to 65% are sold in the chinese market.

The elevator in the existing market generally can all set up the rope clamping device, set up fixed splint and movable splint on the rope clamping device, then set up a gliding briquetting on the rope clamping device, the briquetting passes through the connecting rod with the movable splint and is connected, control the briquetting through actuating mechanism and slide on the rope clamping device, just can drive the connecting rod action, and then make movable splint and fixed splint matched with loosen the elevator stay cord, and when needs reset, the below of briquetting is provided with the spring, the elastic force of spring can drive the briquetting automatic re-setting, and then realize movable splint reverse slip with fixed splint cooperation clamp elevator stay cord, thereby improve the security performance of elevator, but this kind of structure is when elevator operation, elasticity can be given briquetting an elasticity holding pressure all the time, make briquetting and actuating mechanism exist pressure all the time, in long-term use, unavoidable can produce the destruction to actuating mechanism, and then cause the potential safety hazard.

Disclosure of Invention

The utility model aims to provide a rope clamp for an elevator, which is used for solving the problems in the prior art.

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

the rope clamping device for the elevator comprises a rope clamping device body, wherein a fixed clamping plate and a movable clamping plate are correspondingly arranged on the rope clamping device body, the movable clamping plate is connected with a pressing block for driving the movable clamping plate to be close to the fixed clamping plate or far away from the fixed clamping plate, the pressing block is connected onto the rope clamping device body in a sliding manner along the vertical direction, the lower end of the pressing block is provided with a buffer spring arranged on the rope clamping device body, and a driving mechanism for driving the pressing block to slide downwards is arranged above the pressing block; the rope clamping device is characterized in that a locking mechanism is further arranged on the rope clamping device body, and when the pressing block slides downwards and drives the movable clamping plate to loosen the pull rope of the elevator, the locking mechanism acts and presses the pressing block at the upper end of the pressing block.

As a preferable technical scheme in the utility model, the driving mechanism comprises a driving motor, a worm, a turbine and a compression screw, wherein the driving motor is arranged on the rope clamping device body, a motor shaft of the driving motor is connected with the worm, the turbine is rotationally connected on the rope clamping device body, and the turbine is meshed with the worm; the center of turbine is provided with the screw hole, and compression screw threaded connection is in the screw hole, and compression screw's lower extreme and briquetting looks butt.

As a preferable technical scheme in the utility model, the upper end of the rope clamp body is provided with an upper limit switch which is linked with a driving motor, and the compression screw can trigger the upper limit switch along with the rising of the compression screw.

As an optimized technical scheme in the utility model, the rope clamping device body is provided with the lower limit switch which is linked with the driving motor and the locking mechanism, and when the movable clamping plate and the fixed clamping plate are driven by the pressing block to slide downwards to be matched to loosen the elevator pull rope, the pressing block can trigger the lower limit switch.

As a preferable technical scheme in the utility model, the turbine is rotationally connected to the rope clamping device body through the first bearing, the outer ring of the first bearing is connected with the rope clamping device body, the inner ring of the first bearing is connected with the turbine, the inner ring of the first bearing is coaxially arranged with the threaded hole of the turbine, and the inner diameter of the inner ring of the first bearing is larger than the inner diameter of the threaded hole of the turbine.

As a preferable technical scheme in the utility model, one side of the compression screw is cut with a vertical limiting surface, the rope clamping device body is provided with a limiting part, and the vertical limiting surface is abutted with the limiting part.

As a preferable technical scheme in the utility model, the locking mechanism comprises an electromagnetic chuck and an elastic swing rod assembly which are both arranged on the rope clamp body, when the electromagnetic chuck is powered on, the electromagnetic chuck generates adsorption force on the elastic swing rod assembly, so that the elastic swing rod assembly swings and presses a pressing block at the upper end of the pressing block; when the electromagnetic chuck is powered off, the elastic swing rod assembly resets under the action of self elastic force.

As a preferable technical scheme in the utility model, the elastic swing rod assembly comprises a first swing rod, a second swing rod and a lock hook, wherein the middle part of the first swing rod and the middle part of the second swing rod are connected to the rope clamp body through reel change rotation, and the lower end of the lock hook is connected to the rope clamp body through reel change rotation; the electromagnetic chuck is arranged on one side of the pressing block, one end of the first swing rod is positioned on one side, away from the pressing block, of the electromagnetic chuck and is provided with an iron block which can be matched and adsorbed with the electromagnetic chuck, one end of the second swing rod is abutted to one side, away from the pressing block, of the other end of the first swing rod, and the upper end of the lock hook is positioned between the other end of the second swing rod and the pressing block.

As a preferable technical scheme in the utility model, the buffer springs are provided with at least two buffer springs and are uniformly distributed at the lower end of the pressing block.

As a preferable technical scheme in the utility model, each buffer spring is internally sleeved with a guide shaft and a guide sleeve, the guide shaft is arranged at the lower end of the pressing block, the lower end of the guide sleeve is arranged on the rope clamp body, and the lower part of the guide shaft is slidably connected in the guide sleeve.

The beneficial effects are that: according to the rope clamping device, the locking mechanism is arranged on the rope clamping device body, when the pressing block slides downwards and drives the movable clamping plate to loosen the elevator stay cord, the locking mechanism acts and presses the pressing block at the upper end of the pressing block, so that the pressing block can be locked by the locking mechanism, the pressing block is prevented from continuously applying reverse pressure to the driving mechanism under the action of the buffer spring, the driving mechanism is further damaged in the long-term use process, and the safety of equipment in operation is improved.

Drawings

FIG. 1 is a schematic view of a structure of one side of the present utility model;

FIG. 2 is a schematic view of another embodiment of the present utility model;

fig. 3 is a top view of the present utility model.

In the figure: 1-a rope gripper body; 2-fixing the clamping plate; 3-a movable clamping plate; 4-briquetting; 401-rotating a block; 402-a second bearing; 5-buffer springs; 6-a driving mechanism; 601-driving a motor; 602-a worm; 603-a turbine; 604-hold-down screw; 605-a first bearing; 7-a locking mechanism; 701-an electromagnetic chuck; 702-a first swing rod; 703-a second swing rod; 704-latch hook; 8-an upper limit switch; 9-a lower limit switch; 10-a guide shaft; 11-a guide sleeve.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model.

Examples:

as shown in fig. 1-3, this embodiment provides a rope gripper for an elevator, including a rope gripper body 1, a fixed clamping plate 2 and a movable clamping plate 3 are correspondingly disposed on the rope gripper body 1, an elevator rope passes through between the fixed clamping plate 2 and the movable clamping plate 3, the movable clamping plate 3 is connected with a pressing block 4 for driving the movable clamping plate 3 to be close to the fixed clamping plate 2 or far away from the fixed clamping plate 2, the pressing block 4 has the same control mode as the prior art, the pressing block 4 is slidingly connected to the rope gripper body 1 along the vertical direction, the sliding of the pressing block 4 on the rope gripper body 1 can control the movable clamping plate 3 to be close to the fixed clamping plate 2 and clamp an elevator rope, or control the movable clamping plate 3 to be far away from the fixed clamping plate 2 and release the elevator rope, the lower end of the pressing block 4 is provided with a buffer spring 5 mounted on the rope gripper body 1 so as to drive the pressing block 4 to reset by the elastic force of the buffer spring 5, and a driving mechanism 6 for driving the pressing block 4 to slide downwards is disposed above the pressing block 4; the rope clamp body 1 is further provided with a locking mechanism 7, when the pressing block 4 slides downwards and drives the movable clamping plate 3 to loosen an elevator rope, the locking mechanism 7 acts and presses the pressing block 4 at the upper end of the pressing block 4, so that the pressing block 4 can be locked by the locking mechanism 7, the pressing block 4 is prevented from continuously applying reverse pressure to the driving mechanism 6 under the action of the buffer spring 5, and the driving mechanism 6 is further damaged in the long-term use process.

According to the rope clamping device, the locking mechanism 7 is arranged on the rope clamping device body 1, when the pressing block 4 slides downwards and drives the movable clamping plate 3 to loosen an elevator rope, the locking mechanism 7 acts and presses the pressing block 4 at the upper end of the pressing block 4, so that the pressing block 4 can be locked by the locking mechanism 7, the pressing block 4 is prevented from continuously applying reverse pressure to the driving mechanism 6 under the action of the buffer spring 5, the driving mechanism 6 is further damaged in the long-term use process, and the safety of equipment in operation is improved.

As a preferred implementation manner in this example, it should be further explained that the driving mechanism 6 includes a driving motor 601, a worm 602, a worm wheel 603 and a compression screw 604, the driving motor 601 is mounted on the rope gripper body 1, a motor shaft of the driving motor 601 is connected with the worm 602, the worm wheel 603 is rotatably connected to the rope gripper body 1, and the worm wheel 603 is meshed with the worm 602; the center of turbine 603 is provided with the screw hole, and compression screw 604 threaded connection is in the screw hole, and compression screw 604's lower extreme and briquetting 4 butt, driving motor 601 starts, can drive worm 602 rotation, and worm 602 rotates, drives turbine 603 rotation, and turbine 603 rotates, drives compression screw 604 and goes up and down, and compression screw 604's decline can drive briquetting 4 and slide downwards, along with briquetting 4 slides downwards, can drive movable clamp plate 3 and keep away from fixed clamp plate 2 and loosen the elevator stay cord.

As a preferred embodiment of the present embodiment, it should be further noted that the upper end of the rope gripper body 1 is provided with an upper limit switch 8 that is linked with the driving motor 601, and the linking manner is a prior art, and not described in detail herein, the pressing screw 604 can trigger the upper limit switch 8 along with the rising of the pressing screw 604. After the movable clamping plate 3 is far away from the fixed clamping plate 2 and the elevator pull rope is loosened, the driving motor 601 drives the compression screw 604 to move upwards and loosen the pressing of the pressing block 4, and as the compression screw 604 ascends to a certain height, the compression screw 604 can trigger the upper limit switch 8 and then the driving motor 601 is stopped, so that the compression screw 604 can be prevented from continuously moving and falling off from the turbine 603. It should be noted that, in practice, a speed limiter linked with the locking mechanism 7 will be provided, when the speed limiter detects the overspeed of the elevator, the locking mechanism 7 will be started, so that the locking mechanism 7 acts and releases the pressing of the pressing block 4, so that the buffer spring 5 drives the pressing block 4 to slide upwards, and further, the movable clamping plate 3 approaches the fixed clamping plate 2 and clamps the elevator rope, so as to play a role in safety guarantee. By the cooperation of the speed limiter and the locking mechanism 7, the utility model can also realize the upward overspeed protection of the elevator car and/or the unexpected movement protection of the car.

As a preferred embodiment in this embodiment, it should be further described that the rope gripper body 1 is provided with a lower limit switch 9 that is linked with both the driving motor 601 and the locking mechanism 7, and the linking manner is the prior art, and not described in detail herein, when the pressing block 4 slides downward to drive the movable clamping plate 3 to cooperate with the fixed clamping plate 2 to release the elevator rope, the pressing block 4 can trigger the lower limit switch 9, then the driving motor 601 stops, and the locking mechanism 7 acts and presses the pressing block 4 at the upper end of the pressing block 4.

As a preferred embodiment in this embodiment, it should be further explained that the turbine 603 is rotatably connected to the rope gripper body 1 through the first bearing 605, the outer ring of the first bearing 605 is connected to the rope gripper body 1, the inner ring of the first bearing 605 is connected to the turbine 603, stability and flexibility of the turbine 603 are guaranteed, the inner ring of the first bearing 605 is coaxially arranged with the threaded hole of the turbine 603, and the inner diameter of the inner ring of the first bearing 605 is larger than the inner diameter of the threaded hole of the turbine 603, so that the compression screw 604 can stably move up and down.

As a preferred implementation manner in this embodiment, it should be further described that a vertical limiting surface is cut on one side of the compression screw 604, and a limiting portion is disposed on the rope gripper body 1, and the vertical limiting surface is abutted against the limiting portion, so that the compression screw 604 cannot rotate, but only can vertically lift and lower the pressing block 4, and friction between the pressing block 4 is avoided.

As a preferred implementation manner in this embodiment, it should be further explained that the locking mechanism 7 includes an electromagnetic chuck 701 and an elastic swing rod assembly, both of which are installed on the rope clamp body 1, and when the electromagnetic chuck 701 is powered on, the electromagnetic chuck 701 generates an adsorption force to the elastic swing rod assembly, so that the elastic swing rod assembly swings and presses the pressing block 4 at the upper end of the pressing block 4; when the electromagnetic chuck 701 is powered off, the elastic swing rod assembly is reset under the action of the self elastic force, and the elastic swing rod assembly can be driven to act through the power supply and the power failure of the electromagnetic chuck 701, so that the locking mechanism 7 locks the pressing block 4 or releases the pressing block 4, and the structure is simple and effective.

As a preferred embodiment in this embodiment, it should be further explained that the elastic swing rod assembly includes a first swing rod 702, a second swing rod 703 and a latch hook 704, wherein the middle part of the first swing rod 702 and the middle part of the second swing rod 703 are connected to the rope gripper body 1 through reel-to-reel rotation, and the lower end of the latch hook 704 is connected to the rope gripper body 1 through reel-to-reel rotation; the electromagnetic chuck 701 is arranged on one side of the pressing block 4, one end of the first swing rod 702 is positioned on one side, away from the pressing block 4, of the electromagnetic chuck 701 and is provided with an iron block which can be matched and adsorbed with the electromagnetic chuck 701, one end of the second swing rod 703 is abutted to one side, away from the pressing block 4, of the other end of the first swing rod 702, the upper end of the lock hook 704 is positioned between the other end of the second swing rod 703 and the pressing block 4, when the electromagnetic chuck 701 is powered on, one end of the first swing rod 702 can be driven to be close to the electromagnetic chuck 701, the other end of the first swing rod 702 moves, the second swing rod 703 swings under the action of a coil spring, and then the second swing rod 703 can push the upper end of the lock hook 704 to press and slide down the pressing block 4, and otherwise the lock hook 704 can be enabled to loosen pressing of the pressing block 4.

As a preferred embodiment in this embodiment, it should be further described that the buffer springs 5 are provided with at least two buffer springs 5 and are uniformly distributed at the lower end of the pressing block 4, so that the sliding of the pressing block 4 can be more stable through the at least two buffer springs 5.

As a preferred embodiment in this embodiment, it should be further explained that, each buffer spring 5 is sleeved with a guide shaft 10 and a guide sleeve 11, the guide shaft 10 is mounted at the lower end of the pressing block 4, the lower end of the guide sleeve 11 is mounted on the rope gripper body 1, the lower portion of the guide shaft 10 is slidably connected in the guide sleeve 11, so that the pressing block 4 can limit and protect the buffer spring 5 by using the guide shaft 10 and the guide sleeve 11 in the process of compressing the buffer spring 5, so as to prevent the buffer spring 5 from being compressed and deformed, and further ensure the stability of the buffer spring 5.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a rope clamp for elevator, includes rope clamp body (1), is provided with fixed splint (2) and movable splint (3) on the rope clamp body (1) that correspond, and movable splint (3) are connected with and drive its briquetting (4) that are close to fixed splint (2) or keep away from fixed splint (2), briquetting (4) are along vertical direction sliding connection on rope clamp body (1), the lower extreme of briquetting (4) is provided with buffer spring (5) of installing on rope clamp body (1), and the top of briquetting (4) is provided with drive mechanism (6) of drive briquetting (4) gliding downwards; the rope clamping device is characterized in that a locking mechanism (7) is further arranged on the rope clamping device body (1), and when the pressing block (4) slides downwards and drives the movable clamping plate (3) to loosen an elevator pull rope, the locking mechanism (7) acts and presses the pressing block (4) at the upper end of the pressing block (4);

the driving mechanism (6) comprises a driving motor (601), a worm (602), a turbine (603) and a compression screw (604), wherein the driving motor (601) is installed on the rope clamp body (1), a motor shaft of the driving motor (601) is connected with the worm (602), the turbine (603) is rotatably connected to the rope clamp body (1), and the turbine (603) is meshed with the worm (602); the center of the turbine (603) is provided with a threaded hole, a compression screw (604) is in threaded connection with the threaded hole, and the lower end of the compression screw (604) is abutted against the pressing block (4); an upper limit switch (8) which is linked with the driving motor (601) is arranged at the upper end of the rope clamp body (1), and the compression screw (604) can trigger the upper limit switch (8) along with the rising of the compression screw (604); be provided with on rope holder body (1) with driving motor (601) and locking mechanism (7) all linked lower limit switch (9), when briquetting (4) gliding drive movable splint (3) and fixed splint (2) cooperation loosen the elevator stay cord down, briquetting (4) can trigger lower limit switch (9).

2. The rope clamp for an elevator according to claim 1, characterized in that the turbine (603) is rotatably connected to the rope clamp body (1) through a first bearing (605), an outer ring of the first bearing (605) is connected to the rope clamp body (1), an inner ring of the first bearing (605) is connected to the turbine (603), an inner ring of the first bearing (605) is coaxially arranged with a threaded hole of the turbine (603), and an inner diameter of the inner ring of the first bearing (605) is larger than an inner diameter of the threaded hole of the turbine (603).

3. The rope clamp for the elevator according to claim 1, wherein a vertical limiting surface is cut on one side of the compression screw (604), a limiting part is arranged on the rope clamp body (1), and the vertical limiting surface is abutted with the limiting part.

4. A rope clamp for an elevator according to any one of claims 1-3, characterized in that the locking mechanism (7) comprises an electromagnetic chuck (701) and an elastic pendulum assembly, both of which are mounted on the rope clamp body (1), and that when the electromagnetic chuck (701) is powered on, the electromagnetic chuck (701) generates an adsorption force on the elastic pendulum assembly so that the elastic pendulum assembly swings and presses the press block (4) at the upper end of the press block (4); when the electromagnetic chuck (701) is powered off, the elastic swing rod assembly is reset under the action of the self elastic force.

5. The rope clamp for an elevator according to claim 4, wherein the elastic swing rod assembly comprises a first swing rod (702), a second swing rod (703) and a lock hook (704), the middle part of the first swing rod (702) and the middle part of the second swing rod (703) are connected to the rope clamp body (1) through reel-to-reel rotation, and the lower end of the lock hook (704) is connected to the rope clamp body (1) through reel-to-reel rotation; the electromagnetic chuck (701) is arranged on one side of the pressing block (4), one end of the first swing rod (702) is located on one side, away from the pressing block (4), of the electromagnetic chuck (701) and is provided with an iron block capable of being matched with the electromagnetic chuck (701) for adsorption, one end of the second swing rod (703) is abutted to one side, away from the pressing block (4), of the other end of the first swing rod (702), and the upper end of the lock hook (704) is located between the other end of the second swing rod (703) and the pressing block (4).

6. The rope clamp for an elevator according to claim 1, characterized in that the buffer springs (5) are provided with at least two and evenly distributed at the lower end of the press block (4).

7. The rope clamp for an elevator according to claim 1 or 6, characterized in that a guide shaft (10) and a guide sleeve (11) are sleeved in each buffer spring (5), the guide shaft (10) is arranged at the lower end of the pressing block (4), the lower end of the guide sleeve (11) is arranged on the rope clamp body (1), and the lower part of the guide shaft (10) is slidably connected in the guide sleeve (11).