Rescue device for elevator without machine room

Abstract

The utility model relates to the technical field of elevator safety protection devices, and discloses a machine-room-less elevator rescue device which comprises a clamping device and a driving device connected with the clamping device, the clamping device is further detachably connected with a speed limiter steel wire rope on the lower portion of an elevator car, and the driving device drives the clamping device to move downwards so as to drive the elevator car to move. The rescue device is simple in structure, high in adaptability and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator safety protection devices, and particularly relates to a rescue device for a machine-roomless elevator. Background Art

[0002] The machine-roomless elevator adopts variable-frequency speed regulation microcomputer control, cancels the dedicated machine room setting, and installs equipment such as control cabinets, main engines, and speed limiters, which were originally installed in the machine room above the hoistway, in the hoistway, saving building space. While effectively improving the utilization rate of building area, it also reduces the building cost. In addition, the car suspension method is changed, greatly improving the running comfort of the machine-roomless elevator and reducing the intensity of installation, maintenance, and repair operations of the machine-roomless elevator. At the same time, materials are saved and the top floor height is reduced.

[0003] At present, there are more and more machine-roomless elevators on the market. In the case of elevator failures, if the car and counterweight are balanced, it will be very difficult to move the car for rescue. The traditional method is to increase the compensation chain in the pit or hang weights on the speed limiter wire rope to break through the balance state of the car and counterweight. However, the above methods are complex to operate and have many uncontrollable factors during implementation. In view of the above situation, designing a safe, reliable, and easy-to-operate rescue device to break through the balance of the car and counterweight has become the key. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the problem that the rescue device used in the case of machine-roomless elevator failures and the balance of the car and counterweight is complex to operate in the prior art, and provide a rescue device for a machine-roomless elevator, which has a simple structure, strong adaptability, and convenient operation.

[0005] To achieve the above purpose, the utility model provides a rescue device for a machine-roomless elevator, including a clamping device and a driving device connected to the clamping device. The clamping device is also detachably connected to the speed limiter wire rope at the lower part of the elevator car. The driving device drives the clamping device to move downward to drive the elevator car to move; it also includes a base, which is fixedly connected to the elevator pit, and the clamping device is connected to the base through the driving device.

[0006] The clamping device is used to clamp the speed limiter wire rope, stably fix the clamping device and the speed limiter wire rope together. Under the action of the driving device, the clamping device moves towards the tension pulley, thereby driving the elevator car to move towards the tension pulley, and finally moving to a suitable leveling position to carry out subsequent rescue, maintenance, etc. The driving device includes a manual driving device and an electric driving device. The electric driving device is applicable to the situation where the elevator system is powered on, and the manual driving device is applicable to the situation where the elevator system is powered off. The rescue device for the machine-roomless elevator of the present application can select the corresponding applicable method according to the power-on situation of the elevator system, and has strong versatility. Among them, the driving device needs to be fixedly connected to the elevator pit to provide a force point for pulling the movement of the clamping device.

[0007] The base is fixedly connected to the elevator pit, and can stably and conveniently disassemble and fix the driving device in the elevator pit. The driving device is detachably installed on the base, which is convenient for disassembly after use. The clamping device is connected to the driving device, thereby realizing the connection with the base, and the base provides a force point for the movement of the clamping device.

[0008] Preferably, the clamping device includes a fixing member and a clamping member connected to the fixing member. Pressing members are provided at the positions where the clamping member and the fixing member face each other, and the two pressing members are pressed against or separated from the speed limiter wire rope through a locking member.

[0009] The pressing member increases the friction for the stable clamping connection between the clamping device and the speed limiter wire rope, and the locking member increases the pressure for the stable clamping connection between the clamping device and the speed limiter wire rope. Under the combined action of the clamping member and the pressing member, the stable clamping connection between the clamping device and the speed limiter wire rope is realized. So that the clamping device can better clamp the speed limiter wire rope and drive the speed limiter wire rope to move, thereby driving the elevator car to move towards the tension pulley, and finally moving to the leveling position to carry out subsequent work such as rescue and maintenance.

[0010] Preferably, the fixing member includes a main body plate, and a top plate and a bottom plate respectively connected to both ends of the main body plate. Through holes are provided on both the top plate and the bottom plate, connection holes are provided on the clamping member, and a rotary bearing is provided on the top plate.

[0011] The through holes provided on the top plate and the bottom plate are used to limit the clamping device, the connection holes provided on the clamping member are used to connect the external pulling device, and the rotary bearing provided on the top plate is used to connect the rotatable device at the top. The specific structure of the fixing member enables the clamping device to achieve various types of external connections when connecting external components, making the functionality of the clamping device more extensive.

[0012] Preferably, the driving device is an electric driving device, and the electric driving device includes a power device and a pull rope. The pull rope is connected to the clamping device, and the clamping device moves under the drive of the power device through the pull rope.

[0013] The electric drive device is an embodiment of the drive device. The power device is detachably mounted on the base. The clamping device is connected to the power device through a pulling rope. The power device provides a pulling force for the clamping device. The length of the pulling rope is stable according to the distance between the clamping device and the power device, and it has strong versatility. The power device can power-wind the pulling rope, and the pulling rope is tied to the connection hole of the clamping device, so that the clamping device moves under the drive of the power device through the pulling rope. The electric drive device is suitable for use when there is power available in the elevator system, which is time-saving and labor-saving and convenient to install.

[0014] Preferably, the power device is a hoist. The hoist and its safety control switch are mounted on the base. One end of the pulling rope is connected to the hoist, and the other end is connected to the clamping device.

[0015] Using a hoist as the power device, the pulling rope is a hoisting steel wire rope. The hoist and its safety switch are mounted on the base. One section of the pulling rope is wound on the hoist, and the other end hooks the clamping device through the connection hole. The operation is convenient and the operability is strong.

[0016] Preferably, the drive device is a manual drive device. The manual drive device includes a screw rod mounted on the base and a disc driving device fixedly connected to the clamping device. The screw rod passes through the clamping device and is rotatably connected to the disc driving device. The screw rod is slidably connected to the clamping device so that it moves downward under the rotation of the disc driving device.

[0017] The manual drive device is another embodiment of the drive device. The disc driving device is manually operated by the staff to drive the clamping device to move. The manual drive device requires manual operation and is suitable for use when the elevator system is powered off. This enables elevator rescue to be implemented both when there is power and when there is a power outage.

[0018] Preferably, the screw rod passes through the through hole and is connected to the clamping device. The outer diameter of the screw rod is equivalent to the inner diameter of the through hole.

[0019] This design enables the clamping device to be better defined on the screw rod and stably slidably connected to the screw rod. Furthermore, when the clamping device moves on the screw rod, it does not shake, improving the operation efficiency of the staff.

[0020] Preferably, the disc driving device includes a turntable and an operating rod provided on the turntable. The turntable is rotatably connected to the screw rod.

[0021] The disc driving device includes a turntable and an operating rod. The operating rod facilitates the staff to manually rotate the turntable. In order to better achieve the rotational connection between the turntable and the screw rod, after the turntable is connected to the screw rod, a tightening nut is provided above the threaded hole of the turntable. The tightening nut can ensure the stability of the rotational connection between the turntable and the screw rod.

[0022] Preferably, the inner ring of the rotary bearing is connected to the turntable, and the outer ring of the rotary bearing is connected to the fixing member.

[0023] The rotating bearing has an inner ring and an outer ring. In order to enable the clamping device to move on the screw under the rotation of the turntable, the inner ring of the rotating bearing is connected to the turntable, and the outer ring of the rotating bearing is connected to the fixing member. A washer can be fixedly connected between the fixing member and the rotating bearing, and between the rotating bearing and the turntable. This fixed connection can be welding.

[0024] Through the above technical solution, the rescue device for the machine-roomless elevator disclosed by the present utility model drives the movement of the clamping device by setting a manual driving device and an electric driving device, thereby driving the movement of the speed limiter wire rope, and further driving the elevator car to move to the target floor for rescue. The rescue device for the machine-roomless elevator has a simple structure, is integrated with manual and automatic functions, is suitable for the situations where the elevator system is powered on and powered off, has strong versatility, and is also convenient to operate. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the integrated manual and automatic structure of the rescue device;

[0026] Figure 2 is an enlarged schematic structural diagram of the clamping device;

[0027] Figure 3 is a schematic structural diagram of an embodiment of the automatic driving structure of the rescue device;

[0028] Figure 4 is a schematic structural diagram of an embodiment of the manual driving structure of the rescue device;

[0029] Figure 5 is an enlarged schematic structural diagram of the disk driving device.

[0030] Description of the Reference Numerals

[0031] 1. Base; 2. Power device, 21. Pull rope; 22. Safety control switch; 3. Screw; 4. Clamping device; 41. Fixing member; 411. Main body plate; 412. Top plate; 413. Bottom plate; 414. Reinforcing rib; 415. Through hole; 42. Clamping member; 421. Connection hole; 43. Pressing member; 44. Locking member; 45. Rotating bearing; 5. Disk driving device; 51. Operating rod; 52. Turntable; 53. Tightening nut; 6. Tensioning pulley; 61. Speed limiter wire rope; Detailed Description of the Embodiment

[0032] The following will describe in detail the specific embodiments of the present utility model with reference to the drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model.

[0033] In the present utility model, unless otherwise specified, the orientation words such as "upper, lower, left, right, inner, outer, far, near, front" usually refer to the orientation or positional relationship based on the figures shown. It is only for the convenience of describing the present utility model and simplifying the description, and thus should not be construed as a limitation to the present utility model.

[0034] As Figure 1 shown, an inorganic room elevator rescue device includes a clamping device 4 and a driving device connected to the clamping device 4. The clamping device 4 is also detachably connected to the speed governor wire rope 61 at the lower part of the elevator car. The driving device drives the clamping device 4 to move downward to drive the elevator car to move. It further includes a base 1, which is fixedly connected to the elevator pit. The clamping device 4 is connected to the base 1 through the driving device.

[0035] Specifically, when the elevator has an abnormality and the elevator car is balanced with the counterweight, a strong external force is needed to break this balance. As Figure 1 shown, the figure shows the complete structure of the inorganic room elevator rescue device. When elevator rescue is needed, the clamping device 4 is connected to the speed governor wire rope 61, and this section of the speed governor wire rope 61 is below the safety gear lifting mechanism at the bottom of the elevator car. After the elevator rescue is completed, the clamping device 4 can be detached from the speed governor wire rope 61 and removed. The clamping device 4 moves close to the tensioning pulley 6 following the speed governor wire rope 61 through the driving device, thereby driving the elevator car to move close to the tensioning pulley 6 and finally moving to a suitable leveling position. The driving device includes a manual driving device and an electric driving device. The electric driving device is applicable when the elevator system is powered on, and the manual driving device is applicable when the elevator system is powered off. The inorganic room elevator rescue device of the present application can select the corresponding applicable method according to the power-on situation of the elevator system, and has strong versatility. Among them, the driving device needs to be fixedly connected to the elevator pit, and a force application point is required to pull the clamping device 4 to move.

[0036] As Figure 1 shown, in order to stably and conveniently detachably fix the driving device in the elevator pit, the inorganic room elevator rescue device of the present application further sets a base 1, which is fixedly connected to the elevator pit. This fixed connection can be to install the base 1 in the elevator pit through expansion bolts. The material of the base 1 is preferably a steel plate, and then the driving device is detachably installed on the base 1, which is convenient for disassembly after use. The clamping device 4 is connected to the driving device, thereby realizing the connection with the base 1. The base 1 provides a force application point for the movement of the clamping device 4.

[0037] Furthermore, the clamping device 4 includes a fixing member 41 and a clamping member 42 connected to the fixing member 41. Pressing members 43 are provided at the positions where the clamping member 42 and the fixing member 41 face each other. The two pressing members 43 are pressed against or separated from the speed governor wire rope 61 through a locking member.

[0038] As Figure 2 shown, the clamping device 4 consists of a fixing member 41, a clamping member 42, and a pressing member 43. Among them, the fixing member 41 is the main structure of the clamping device 4. The clamping member 42 is detachably connected to the fixing member 41 through a locking member 44, and the locking member 44 is preferably a bolt. Specifically, the fixing member 41 is preferably made of steel, and the clamping member 42 is preferably a steel plate. One side of the clamping member 42 can be hinged to the fixing member 41 through a hinge for opening and closing, and the other side of the clamping member 42 is detachably connected to the fixing member 41 through the locking member 44. The locking member 44 is preferably a screw rod with a handle. Correspondingly, screw holes matching the locking member 44 are drilled at the positions of the clamping member 42 and the fixing member 41 corresponding to the locking member 44 to better bolt the clamping member 42 and the fixing member 41. In order to clamp the speed limiter steel wire rope 61 more firmly, pressing members 43 are provided on the opposite surfaces of the fixing member 41 and the clamping member 42. The speed limiter steel wire rope 61 is placed between the two pressing members 43. The two opposite pressing members 43 are tightly connected to the speed limiter steel wire rope 61 under the pressure of the locking member 44. The pressing member 43 is preferably made of rubber material to better clamp the speed limiter steel wire rope 61 and drive the speed limiter steel wire rope 61 to move, thereby driving the elevator car to move closer to the tensioning wheel 6. After the locking member 44 is disassembled, the two opposite pressing members 43 and the speed limiter steel wire rope 61 can be in a separated state.

[0039] Further, the fixing member 41 includes a main body plate 411, and a top plate 412 and a bottom plate 413 respectively connected to both ends of the main body plate 411. Through holes 415 are opened on both the top plate 412 and the bottom plate 413, and a connection hole 421 is opened on the clamping member 42. A rotary bearing 45 is provided on the top plate 412.

[0040] As Figure 2 shown, the fixing member 41 is a special-shaped member, which consists of a main body plate 411 in the vertical direction, and a top plate 412 and a bottom plate 413 that are bent and extended. Among them, the top plate 412 is the top extension of the main body plate 411, the bottom plate 413 is the bottom extension of the main body plate 411, and the top plate 412 and the bottom plate 413 are substantially parallel. The through holes 415 opened on the top plate 412 and the bottom plate 413 are used to limit the clamping device 4. The connection hole 421 is opened on the clamping member 42 to connect an external pulling device. At the same time, a rotary bearing 45 is provided on the top plate 412 to connect a rotatable device at the top.

[0041] Further, the driving device is an electric driving device. The electric driving device includes a power device 2 and a pull rope 21. The pull rope 21 is connected to the clamping device 4, and the clamping device 4 moves under the drive of the power device through the pull rope 21.

[0042] As Figure 3As shown in the figure, the electric drive device is an embodiment of the drive device. The electric drive device is composed of a power device 2 and a pulling rope 21. Among them, the power device 2 is detachably installed on the base 1. The pulling rope 21 is made of a material with relatively strong toughness and can withstand the pulling force for pulling the elevator car. The power device 2 can powerfully wind the pulling rope 21. The pulling rope 21 is tied to the connection hole 421 of the clamping device 4 so that the clamping device 4 moves under the drive of the power device through the pulling rope 21. The electric drive device is applicable to the situation where the elevator system has power available, which is time-saving and labor-saving and convenient to install.

[0043] Furthermore, the power device 2 is a hoist. The hoist and its safety control switch 22 are installed on the base 1. One end of the pulling rope 21 is connected to the hoist, and the other end is connected to the clamping device 4.

[0044] Specifically, a hoist is used as the power device 2. The pulling rope 21 is a hoisting steel wire rope. The hoist and its safety control switch 22 are installed on the base 1. One section of the pulling rope 21 is wound on the hoist, and the other end hooks the clamping device 4 through the connection hole 421. The operation is convenient and the operability is strong.

[0045] Furthermore, the drive device is a manual drive device. The manual drive device includes a screw 3 installed on the base 1 and a driving device 5 fixedly connected to the clamping device 4. The screw 3 passes through the clamping device 4 and is rotatably connected to the driving device 5. The screw 3 is slidably connected to the clamping device 4 so that it moves downward under the rotation of the driving device.

[0046] As Figure 4 shown in the figure, the manual drive device is another embodiment of the drive device. The manual drive device is composed of a driving device 5 and a screw 3. Among them, the screw is detachably connected to the base 1 through a mounting member, which is convenient for disassembly after use. The driving device 5 is fixedly connected to the clamping device 4, the driving device 5 is rotatably connected to the screw 3, and the screw 3 is slidably connected to the clamping device 4. Thus, when the driving device 5 is manually rotated by the staff, it moves on the screw 3, thereby driving the clamping device 4 to move on the screw 3, and finally driving the speed limiter steel wire rope 61 and the elevator car to move closer to the tensioning wheel 6. The manual drive device requires manual operation and is applicable to the situation where the elevator system has no power supply due to a power outage, so that elevator rescue can be implemented whether there is power or a power outage.

[0047] Furthermore, the screw 3 passes through the through hole 415 and is connected to the clamping device 4. The outer diameter of the screw 3 is equivalent to the inner diameter of the through hole 415.

[0048] It should be noted that in order to better achieve the sliding connection between the screw 3 and the clamping device 4, the screw 3 passes through the bottom plate 413, the top plate 412 and the rotary bearing 45 of the clamping device 4 through the through hole 415. The outer diameter of the screw 3 is equivalent to the inner diameter of the through hole 415, so that the clamping device 4 can be better defined on the screw 3 and stably slide-connected with the screw 3. Furthermore, when the clamping device 4 moves on the screw 3, it does not shake, improving the operation efficiency of the staff.

[0049] Furthermore, the cranking device 5 includes a turntable 52 and an operating rod 51 arranged on the turntable 52, and the turntable 52 is rotationally connected to the screw 3.

[0050] As Figure 5 shown, the cranking device 5 includes a turntable 52 and an operating rod 51. A threaded hole matching the screw 3 is provided at the center of the turntable 52, so that the turntable 52 is rotationally connected to the screw 3. The operating rod 51 facilitates the staff to manually operate the rotation of the turntable 52. In order to better achieve the rotational connection between the turntable 52 and the screw 3, after the turntable 52 is connected to the screw 3, a tightening nut 53 is provided above the threaded hole of the turntable 52 to ensure the stability of the rotational connection between the turntable 52 and the screw 3.

[0051] Furthermore, the inner ring of the rotary bearing 45 is connected to the turntable 52, and the outer ring of the rotary bearing 45 is connected to the fixing member 41.

[0052] Specifically, as Figure 2 shown, the rotary bearing 45 has an inner ring and an outer ring. In order to enable the clamping device 4 to move on the screw 3 under the rotation of the turntable 52, the inner ring of the rotary bearing 45 is connected to the turntable 52, and the outer ring of the rotary bearing 45 is connected to the fixing member 41. Fixing washers can be provided between the fixing member 41 and the rotary bearing 45, and between the rotary bearing 45 and the turntable 52. This fixed connection can be welding.

[0053] The machine-roomless elevator rescue device of the present application can be applied to both the situations of elevator systems with or without power.

[0054] Embodiment 1:

[0055] When the elevator system is powered on and the elevator malfunctions with people trapped, the elevator car and the counterweight are balanced, and the elevator cannot release the brake for rescue. It is necessary to start the elevator rescue program, put the elevator in the maintenance state, and disconnect the elevator emergency stop switch. The staff enters the elevator pit, as Figure 3As shown in the figure, the clamping device 4 is installed on the governor wire rope 61. This section of the governor wire rope 61 is located at a suitable position at the lower end of the safety gear lifting mechanism at the bottom of the elevator car. The electric drive device is installed on the base 1, and the pulling rope 21 of the hoist is hung in the connection hole 421 of the clamping device 4. Turn on the safety control switch 22 of the hoist, and at the same time turn on the elevator brake of the elevator system. The hoist pulls the clamping device 4 to move through the pulling rope 21, and at the same time drives the governor wire rope 61 to move, thereby driving the elevator car to move closer to the tension pulley 6. If the pulling stroke is not enough, turn off the safety control switch 22 of the hoist, remove the pulling rope 21 from the connection hole 421 of the clamping device 4, remove the locking part 44 of the clamping device 4, manually move the position of the clamping device 4 on the governor wire rope 61 upwards to a suitable position and then install the locking part 44 to clamp it. Then start the safety control switch 22 of the hoist to make the elevator car continue to move closer to the tension pulley 6. Operate in this cycle until the elevator car reaches the appropriate leveling position. At this time, turn off the safety control switch 22 of the hoist, disconnect the power supply of the hoist, and close the elevator brake. Send a leveling alarm signal. The rescue personnel above open the elevator door to complete the rescue.

[0056] Embodiment 2:

[0057] When the elevator system is out of power, the elevator malfunctions and there are people trapped. The elevator car and the counterweight are balanced, and the elevator cannot release the brake for rescue. It is necessary to start the elevator rescue procedure, put the elevator in the maintenance state, and disconnect the elevator emergency stop switch. The staff enter the elevator pit. As Figures 3 - 5 shown in the figure, the clamping device 4 is installed on the governor wire rope 61. This section of the governor wire rope 61 is located at a suitable position at the lower end of the safety gear lifting mechanism at the bottom of the elevator car. Then the manual drive device is vertically installed on the base 1. Specifically, the screw 3 passes through the bottom plate 413, the top plate 412 and the rotating bearing 45 of the clamping device 4 through the through hole 415, and then the screw 3 passes through the turntable 52 and the tightening nut 53, and the tightening nut 53 is tightened to complete the installation of the manual drive device and the clamping device. At this time, due to the loss of pressure of the elevator rescue device reset switch, the elevator safety circuit is automatically cut off. The staff manually operate the operating rod 51 to rotate the turntable 52. The turntable 52 moves on the screw 3 to drive the clamping device 4 to move, and at the same time drives the governor wire rope 61 to move, thereby driving the elevator car to move closer to the tension pulley 6. If the pulling stroke is not enough, remove the locking part 44 of the clamping device 4, manually move the position of the clamping device 4 on the governor wire rope 61 upwards to a suitable position and then install the locking part 44 to clamp it. The staff manually operate the operating rod 51 to rotate the turntable 52 to drive the elevator car to continue to move closer to the tension pulley 6. Operate in this cycle until the elevator car reaches the appropriate leveling position. The rescue personnel above open the elevator door to complete the rescue.

[0058] The rescue device for the machine-room-less elevator of the present utility model has strong versatility and at the same time has the elevator balance rescue function in both manual and electric modes, improving the safety and efficiency of elevator rescue.

[0059] It should be noted that for each of the specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods.

[0060] In addition, any combination can be made between various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, it should also be regarded as the content disclosed by the present utility model.

Claims

1. An inorganic room elevator rescue device, characterized in that, A driving device connected to the clamping device (4), the clamping device (4) is also detachably connected to the overspeed governor wire rope (61) at the lower part of the elevator car, and the driving device drives the clamping device (4) to move downward to drive the elevator car to move; It further includes a base (1), the base (1) is fixedly connected to the elevator pit, and the clamping device (4) is connected to the base (1) through the driving device.

2. The machine-room-less elevator rescue device according to claim 1, wherein, The clamping device (4) includes a fixing member (41) and a clamping member (42) connected to the fixing member (41). Pressing members (43) are provided at positions opposite to the clamping member (42) and the fixing member (41), and the two pressing members (43) are pressed against or separated from the overspeed governor wire rope (61) through a locking member.

3. The machine-roomless elevator rescue device according to claim 2, characterized in that, The fixing member (41) includes a main body plate (411), and a top plate (412) and a bottom plate (413) respectively connected to both ends of the main body plate (411). Through holes (415) are provided on both the top plate (412) and the bottom plate (413), a connection hole (421) is provided on the clamping member (42), and a rotary bearing (45) is provided on the top plate (412).

4. The machine-roomless elevator rescue device according to claim 3, wherein, The driving device is an electric driving device, the electric driving device includes a power device (2) and a pulling rope (21), the pulling rope (21) is connected to the clamping device (4), and the clamping device (4) moves under the drive of the power device through the pulling rope (21).

5. The machine-room-less elevator rescue device according to claim 4, wherein The power device (2) is a hoist, the hoist and its safety control switch (22) are installed on the base (1), one end of the pulling rope (21) is connected to the hoist, and the other end is connected to the clamping device (4).

6. The machine-room-less elevator rescue device according to claim 3, characterized in that, The driving device is a manual driving device, the manual driving device includes a screw rod (3) installed on the base (1) and a turning device (5) fixedly connected to the clamping device (4), the screw rod (3) passes through the clamping device (4) and is rotatably connected to the turning device (5), and the screw rod (3) is slidably connected to the clamping device (4) so as to move downward under the rotation of the turning device.

7. The machine-roomless elevator rescue device according to claim 6, characterized in that, The screw rod (3) passes through the through hole (415) to be connected to the clamping device (4), and the outer diameter of the screw rod (3) is equivalent to the inner diameter of the through hole (415).

8. The machine-room-less elevator rescue device according to claim 7, wherein, The turning device (5) includes a turntable (52) and an operating rod (51) provided on the turntable (52), and the turntable (52) is rotatably connected to the screw rod (3).

9. The machine-roomless elevator rescue device according to claim 8, characterized in that, The inner ring of the rotary bearing (45) is connected to the turntable (52), and the outer ring of the rotary bearing (45) is connected to the fixing member (41).

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