Lifter rope loosening protection device

Abstract

The utility model relates to the technical field of elevators, and provides an elevator loose rope protection device which comprises a carrier roller, a hoist, a steel wire rope and a loose rope protection piece which are arranged on a guide rail, the guide rail comprises longitudinal beams and a cross beam, the cross beam is horizontally connected with the two longitudinal beams, the carrier roller is arranged on the longitudinal beams of the guide rail, and the hoist is arranged at the lower end of the bottom of the longitudinal beams of the guide rail. The rope loosening protection piece comprises a connecting rod and a safety check block, one end of the connecting rod is rotationally connected with an adjusting block, the adjusting block is connected with the steel wire rope, the other end of the connecting rod is rotationally connected with the safety check block, and the adjusting block and the safety check block are rotationally connected with the lifting machine hanging basket through idler wheel installation pins. The travel switch is horizontally arranged on the side, close to the guide rail, of the elevator hanging basket, after the steel wire rope is loosened or broken, the rope loosening protection piece can trigger the travel switch to cut off a power source, the elevator hanging basket is safely stopped on the guide rail, and safety of equipment materials and safety of constructors are guaranteed to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a loose rope protection device for an elevator. Background Art

[0002] A wire rope hoist is an attached hoist that uses a wire rope to pull the hanging basket up and down along a guide frame to transport materials, equipment or personnel.

[0003] When the running speed of the elevator basket and the elevator traction power (electric hoist) are inconsistent, the wire rope will be loosened, often accompanied by the phenomenon of wire rope kinking. When the wire rope is loose to a certain extent, if the basket suddenly falls, it may cause damage to materials and equipment or injury to personnel due to impact, which poses certain safety hazards; when the wire rope is suddenly disconnected, the basket will slide down along the guide rail, causing serious safety accidents.

[0004] Therefore, in view of the above problems, a loose rope protection device for an elevator is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and develops a loose rope protection device for an elevator. After the wire rope is loose or broken, the utility model stops the elevator hanging basket safely on the guide rail and cuts off the power supply to maximize the safety of equipment materials and construction personnel.

[0006] The technical solution to the technical problem solved by the utility model is as follows: the utility model provides a loose rope protection device for an elevator, comprising a roller, a hoist, a wire rope and a loose rope protection member arranged on a guide rail, the guide rail comprising a longitudinal beam and a cross beam, the cross beam horizontally connecting two longitudinal beams, the roller being arranged on the guide rail longitudinal beam, the hoist being arranged at the bottom lower end of the guide rail longitudinal beam, a wire rope being arranged on the hoist, the wire rope being wound through the roller and connected with a loose rope protection member, the loose rope protection member comprising a connecting rod and a safety block, one end of the connecting rod being rotatably connected to an adjusting block, the adjusting block being connected to the wire rope, the other end of the connecting rod being rotatably connected to the safety block, the adjusting block and the safety block being both rotatably connected to the elevator hanging basket through a roller mounting pin, a travel switch being horizontally arranged on a side of the elevator hanging basket close to the guide rail, and the loose rope protection member can trigger the travel switch to cut off power.

[0007] As an optimization, the upper end of the adjusting block is connected to the wire rope through a rope connector, and a connecting plate is arranged at the lower end of the adjusting block along the vertical length direction of the adjusting block, and the bottom of the connecting plate is rotatably connected to the connecting rod through a pin shaft.

[0008] As an optimization, the safety stop is in a "Z" shape, and the upper end of the safety stop is rotatably connected to the connecting rod. When the safety stop is rotated to the lower end perpendicular to the guide rail longitudinal beam, the lower end of the safety stop is clamped on the guide rail cross beam.

[0009] As an optimization, a travel switch is horizontally arranged on the side of the elevator basket close to the guide rail. When the safety block rotates to the lower vertical guide rail longitudinal beam, the safety block triggers the travel switch.

[0010] As an optimization, the hoist is an electric hoist.

[0011] As an optimization, the travel switch is electrically connected to the hoist.

[0012] As an optimization, the rope connector is connected to the wire rope via a rope clamp.

[0013] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0014] This device is provided with a loose rope protection part. After the wire rope is loose or broken, the elevator basket will be safely stopped on the guide rail and the power supply will be cut off to maximize the safety of equipment materials and construction personnel. Once the wire rope is loose, the loose rope protection part will work immediately, and the safety block will be self-locking to prevent the elevator basket from falling, thereby ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 It is the overall structure diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the guide rail of the utility model;

[0018] Figure 3 This is a structural diagram of the slack rope protection member of the utility model;

[0019] Figure 4 This is a diagram showing the position of the loose rope protection member of the utility model when the rope is loose.

[0020] In the figure, 1, guide rail; 101, longitudinal beam; 102, cross beam; 2, elevator basket; 3, hoist; 4, roller; 5, wire rope; 6, rope clamp; 7, rope connector; 8, adjustment block; 801, connecting plate; 9, connecting rod; 10, safety stopper; 11, pin shaft; 13, roller mounting pin; 14, travel switch. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] like Figures 1 to 4 As shown, a loose rope protection device for an elevator includes a roller 4, a hoist 3, a wire rope 5 and a loose rope protection member arranged on a guide rail 1, the guide rail 1 includes a longitudinal beam 101 and a cross beam 102, the cross beam 102 horizontally connects the two longitudinal beams 101, the roller 4 is arranged on the longitudinal beam 101 of the guide rail 1, the hoist 3 is arranged at the bottom lower end of the longitudinal beam 101 of the guide rail 1, the hoist 3 is arranged on the wire rope 5, the wire rope 5 is wound through the roller 4 and is connected to the loose rope protection member, the loose rope protection member includes a connecting rod 9 and a safety stopper 10, one end of the connecting rod 9 is rotatably connected to the adjusting block 8, the adjusting block 8 is connected to the wire rope 5, the other end of the connecting rod 9 is rotatably connected to the safety stopper 10, the adjusting block 8 and the safety stopper 10 are both rotatably connected to the elevator basket 2 through the roller mounting pin 13, a travel switch 14 is horizontally arranged on the side of the elevator basket 2 close to the guide rail 1, and the loose rope protection member can trigger the travel switch 14 to cut off the power supply. By providing a loose rope protection member, after the wire rope 5 is loosened or broken, the elevator basket 2 is safely stopped on the guide rail 1 and the power supply is cut off to maximize the safety of equipment and materials and the safety of construction personnel.

[0023] In this embodiment, the upper end of the adjusting block 8 is connected to the wire rope 5 through the rope connector 7, and the lower end of the adjusting block 8 is provided with a connecting plate 801 along the length direction of the adjusting block 8 vertically, and the bottom of the connecting plate 801 is rotatably connected to the connecting rod 9 through the pin shaft 11.

[0024] In this embodiment, the safety stopper 10 is in a "Z" shape, and the upper end of the safety stopper 10 is rotatably connected to the connecting rod 9. When the safety stopper 10 rotates to the lower end vertically adjacent to the longitudinal beam 101 of the guide rail 1, the lower end of the safety stopper 10 is clamped on the cross beam 102 of the guide rail 1.

[0025] In this embodiment, when the safety block 10 rotates to the longitudinal beam 101 of the lower vertical guide rail 1, the safety block 10 triggers the travel switch 14.

[0026] In this embodiment, the hoist 3 is an electric hoist. The hoist 3 provides power for the elevator, driving the elevator basket 2 to rise, and the elevator basket 2 descends by its own gravity.

[0027] The travel switch 14 is electrically connected to the hoist 3 .

[0028] In this embodiment, the rope connector 7 is connected to the steel wire rope 5 via a rope clamp 6 .

[0029] Working principle:

[0030] 1. As Figure 3 As shown, when the electric hoist 3 is started, the traction wire rope 5 is always kept taut and straightened due to the gravity of the elevator basket 2. At this time, the adjustment block 8 is pulled up and aligned with the traction wire rope 5. The adjustment block 8 pulls up the safety block 10 through the connecting rod 9. At this time, the lower end of the safety block 10 is not stuck on the crossbeam 102 of the guide rail 1.

[0031] 2. If Figure 4 As shown, when the wire rope 5 is loose or broken, under the action of the gravity of the rope connector 7 and the adjusting block 8, the adjusting block 8 will rotate counterclockwise in the figure with the roller mounting pin 13 as the axis, thereby driving the connecting rod 9 to push the safety block 10 to rotate clockwise around the roller mounting pin 13 in the figure. At this time, the lower part of the safety block 10 is stuck on the crossbeam 102 of the guide rail 1, realizing unidirectional self-locking, and the hanging basket 2 will be stopped on the guide rail 1 frame; at the same time, the upper part of the safety block 10 extends to the side close to the elevator hanging basket 2 to trigger the travel switch 14, turning off the power of the hoist 3, realizing the operation of the loose rope protection device and stopping the hoist 3.

[0032] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A slack rope protection device for an elevator, characterized by: The invention comprises a roller (4), a hoist (3), a steel wire rope (5) and a loose rope protection member arranged on a guide rail (1). The guide rail (1) comprises a longitudinal beam (101) and a transverse beam (102), the transverse beam (102) horizontally connecting the two longitudinal beams (101), the roller (4) being arranged on the longitudinal beam (101) of the guide rail (1), the hoist (3) being arranged at the bottom end of the longitudinal beam (101) of the guide rail (1), the wire rope (5) being arranged on the hoist (3), the wire rope (5) being wound through the roller (4) and connected to a loose rope protection member, The rope loosening protection component comprises a connecting rod (9) and a safety stopper (10), one end of the connecting rod (9) is rotatably connected to an adjusting block (8), the adjusting block (8) is connected to a steel wire rope (5), and the other end of the connecting rod (9) is rotatably connected to the safety stopper (10), the adjusting block (8) and the safety stopper (10) are both rotatably connected to the elevator basket (2) through a roller mounting pin (13), a travel switch (14) is horizontally arranged on one side of the elevator basket (2) close to the guide rail (1), and the rope loosening protection component can trigger the travel switch (14) to cut off the power supply.

2. The elevator slack rope protection device according to claim 1 is characterized in that: The upper end of the adjusting block (8) is connected to the steel wire rope (5) through a rope connecting piece (7), and a connecting plate (801) is arranged at the lower end of the adjusting block (8) along the length direction of the adjusting block (8), and the bottom of the connecting plate (801) is rotatably connected to the connecting rod (9) through a pin shaft (11).

3. The elevator slack rope protection device according to claim 1 or 2, characterized in that: The safety block (10) is in a "Z" shape. The upper end of the safety block (10) is rotatably connected to the connecting rod (9). When the safety block (10) rotates until the lower end is perpendicular to the longitudinal beam (101) of the guide rail (1), the lower end of the safety block (10) is clamped on the cross beam (102) of the guide rail (1).

4. The elevator slack rope protection device according to claim 3 is characterized in that: When the safety block (10) rotates to the longitudinal beam (101) of the lower vertical guide rail (1), the safety block (10) triggers the travel switch (14).

5. The elevator slack rope protection device according to claim 4 is characterized in that: The hoist (3) is an electric hoist.

6. The elevator slack rope protection device according to claim 5 is characterized in that: The travel switch (14) is electrically connected to the hoist (3).

7. The elevator slack rope protection device according to claim 2 is characterized in that: The rope connecting member (7) is connected to the steel wire rope (5) via a rope clamp (6).

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