Adjustable safety rope for elevator installation

Abstract

The utility model relates to the technical field of safety ropes for elevator installation, and discloses an adjustable safety rope for elevator installation, which comprises a rope body, the right end of the rope body is connected with a rope winding barrel in a sliding manner, the two sides of the rope winding barrel are fixedly connected to the ground, and the rope winding barrel is connected with the rope body in a sliding manner. The front end of the rope winding barrel is fixedly connected with a motor, the upper end of the rope body is slidably connected with a pulley, the outer wall of the pulley is fixedly connected with a connecting plate, an adjusting mechanism is arranged on the inner wall of the upper portion of the connecting plate, and a protection mechanism is arranged below the pulley. The lifting plate can adjust the connecting plate up and down, the working distance of the pulley is increased, meanwhile, the angle of the rope body can be adjusted, the body can work at a proper angle, the friction force of the rope body is adjusted, and the working safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety ropes for elevator installation, in particular to an adjustable safety rope for elevator installation. Background Technique

[0002] An elevator is a vertical lift powered by an electric motor, equipped with a box-shaped cabin, and is a transportation tool for people or goods in multi-story buildings. There are also step-type ones, where the tread plates are installed on the tracks and run continuously, commonly known as escalators or moving sidewalks. It is a fixed lifting device serving specified floors. The vertical lift elevator has a car that runs between at least two columns of vertical or inclined rigid guide rails with an inclination angle less than 15°. The car size and structure form are convenient for passengers to enter and exit or load and unload goods. Conventionally, regardless of its driving method, the elevator is generally referred to as the general term for vertical transportation tools in buildings.

[0003] For the existing safety ropes for elevator installation, only the length of the safety rope can be adjusted. When the space in the elevator shaft is narrow and the top plate is too high, the angle of the rope cannot be adjusted, and insufficient friction force cannot be provided in case of danger, resulting in a large impact force on the staff. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable safety rope for elevator installation to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable safety rope for elevator installation, including a rope body. The right end of the rope body is slidably connected to a rope winding barrel, and both sides of the rope winding barrel are fixedly connected to the ground. The front end of the rope winding barrel is fixedly connected to a motor. The upper end of the rope body is slidably connected to a pulley. The outer wall of the pulley is fixedly connected to a connecting plate. An adjusting mechanism is arranged on the inner wall above the connecting plate, and a protection mechanism is arranged below the pulley. The adjusting mechanism includes:

[0006] A rocker, the left end of the rocker is fixedly connected to a rotating rod. The rotating rod penetrates through the right end of the connecting plate and is rotatably connected through it. A large gear is fixedly connected to the outer wall of the rotating rod, and a small gear is fixedly connected to the left end of the large gear;

[0007] A lifting plate, the lifting plate is slidably connected to both sides of the connecting plate. A rack is fixed to the inner wall of the lifting plate. The large gear is meshed with the inner side of the rack. A fixing plate is fixedly connected above the lifting plate.

[0008] Preferably, a transmission gear is meshed with the rear side of the pinion gear. A support rod is fixedly connected to the inner wall of the transmission gear. The support rod plays a role in fixing and supporting the transmission gear, enabling the transmission gear to be fixed within the connecting plate and perform transmission, thereby driving the lifting plate to perform lifting adjustment. Both ends of the support rod are rotatably connected to the inner wall of the connecting plate. A rack is meshed with the rear side of the transmission gear.

[0009] Preferably, a ratchet wheel I is fixedly connected to the right end of the rotating rod. A pawl I is hinged to the right end of the connecting plate. By providing the ratchet wheel I and the pawl I, the large gear and the pinion gear cannot rotate downward, thereby realizing the limiting function.

[0010] Preferably, a connecting rod is hinged to the left end of the connecting plate. The connecting rod plays a role in supporting the moving plate. When the rope body is vertically downward, it can drive the moving plate to move towards the central position, so that the ratchet wheel II and the pawl II cooperate with each other to achieve the protection effect. A moving plate is fixedly connected below the connecting rod. A positioning wheel is fixedly connected to the left end of the inner wall of the moving plate. A protection wheel is slidably connected to the right end of the inner wall of the moving plate. A ratchet wheel II is fixedly connected to the protection wheel, and the ratchet wheel II penetrates through the outer wall of the moving plate and is rotatably connected at the penetration point.

[0011] Preferably, a pawl II is slidably connected to the inner wall of the lower side of the connecting plate. A sliding pin is fixedly connected to the upper end of the pawl II. A chute is provided on the outer wall of the lower side of the connecting plate.

[0012] Preferably, two sets of ratchet wheels II are provided and are arranged in central symmetry.

[0013] Compared with the prior art, the present utility model provides an adjustable safety rope for elevator installation, having the following beneficial effects:

[0014] 1. For the adjustable safety rope for elevator installation, by providing the rocker, the rotating rod, the large gear, the rack, the lifting plate, the fixing plate, the pinion gear, the transmission gear, the support rod, the ratchet wheel I, and the pawl I, the lifting plate can adjust the connecting plate up and down, increasing the working distance of the pulley. At the same time, the angle of the rope body can be adjusted, enabling the body to be at a more appropriate angle for work, thereby adjusting the friction force of the rope body and improving the safety of work.

[0015] 2. For the adjustable safety rope for elevator installation, by providing the connecting rod, the moving plate, the positioning wheel, the protection wheel, the ratchet wheel II, the chute, the pawl II, and the sliding pin, the ratchet wheel II is engaged into the pawl to limit the protection wheel, preventing the protection wheel from rotating downward, thereby increasing the friction force of the rope body, reducing the falling speed, providing more reaction time for the worker, and thus increasing the probability of survival. Description of the Drawings

[0016] Figure 1Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Schematic side view structure diagram of the present utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged structure diagram at position A;

[0019] Figure 4 Schematic diagram of the partial structure of the present utility model;

[0020] Figure 5 Schematic diagram of the partial sectional structure of the present utility model.

[0021] In the figure: 1. Rope body; 2. Rope winding barrel; 3. Motor; 4. Pulley; 5. Connecting plate; 6. Adjusting mechanism; 61. Rocker; 62. Rotating rod; 63. Large gear; 64. Rack; 65. Lifting plate; 66. Fixed plate; 67. Small gear; 68. Driving gear; 69. Support rod; 610. First ratchet; 611. First ratchet pawl; 7. Protection mechanism; 71. Link; 72. Moving plate; 73. Positioning wheel; 74. Protection wheel; 75. Second ratchet; 76. Chute; 77. Second ratchet pawl; 78. Slide pin. Specific embodiments

[0022] As Figures 1-5 shown, the present utility model provides a technical solution: An adjustable safety rope for elevator installation, including a rope body 1. The right end of the rope body 1 is slidably connected to a rope winding barrel 2, and both sides of the rope winding barrel 2 are fixedly connected to the ground. The front end of the rope winding barrel 2 is fixedly connected to a motor 3. The upper end of the rope body 1 is slidably connected to a pulley 4. The pulley 4 can reduce the friction of the rope body 1, making the rope body 1 move more smoothly up and down. It can pull the installation staff with less effort and prevent the staff from being trapped at the bottom and unable to be rescued in time. The outer wall of the pulley 4 is fixedly connected to a connecting plate 5. An adjusting mechanism 6 is provided on the inner wall above the connecting plate 5, and a protection mechanism 7 is provided below the pulley 4.

[0023] The above-mentioned adjusting mechanism 6 includes: a rocker 61, a rotating rod 62, a large gear 63, a rack 64, a lifting plate 65, a fixing plate 66, a small gear 67, a transmission gear 68, a support rod 69, a first ratchet wheel 610, and a first pawl 611. The left end of the rocker 61 is fixedly connected to the rotating rod 62. The rotating rod 62 penetrates through the right end of the connecting plate 5 and is rotationally connected through it. The outer wall of the rotating rod 62 is fixedly connected to the large gear 63. The left end of the large gear 63 is fixedly connected to the small gear 67. The lifting plate 65 is slidably connected to both sides of the connecting plate 5. The lifting plate 65 can adjust the connecting plate 5 up and down, increasing the working distance of the pulley 4. At the same time, it can adjust the angle of the rope 1, enabling the body to work at a more appropriate angle, thereby adjusting the friction of the rope 1 and improving the safety of work. The inner wall of the lifting plate 65 is fixed with a rack 64. The rack 64 is meshed with the large gear 63 on the inner side. The fixing plate 66 is fixedly connected above the lifting plate 65. The small gear 67 is meshed with the transmission gear 68 at the rear. The inner wall of the transmission gear 68 is fixedly connected to the support rod 69. The support rod 69 plays a role in fixing and supporting the transmission gear 68, enabling the transmission gear 68 to be fixed in the connecting plate 5 and perform transmission, thereby driving the lifting plate 65 to perform lifting adjustment. Both ends of the support rod 69 are rotationally connected to the inner wall of the connecting plate 5. The transmission gear 68 is meshed with the rack 64 at the rear. The right end of the rotating rod 62 is fixedly connected to the first ratchet wheel 610. The right end of the connecting plate 5 is hinged with a first pawl (611). By setting the first ratchet wheel 610 and the first pawl 611, the large gear 63 and the small gear 67 cannot rotate downward, thus realizing the limiting function.

[0024] The above-mentioned protection mechanism 7 includes: a connecting rod 71, a moving plate 72, a positioning wheel 73, a protection wheel 74, a second ratchet wheel 75, a chute 76, a second pawl 77, and a sliding pin 78. The left end of the connecting plate 5 is hinged with the connecting rod 71, and the connecting rod 71 plays a supporting role for the moving plate 72. When the rope body 1 is vertically downward, it can drive the moving plate 72 to move towards the central position, so that the second ratchet wheel 75 and the second pawl 77 cooperate with each other to tightly hold the protection wheel 74, preventing the protection wheel 74 from rotating, thereby increasing the friction force of the rope body 1, reducing the falling speed, increasing the reaction time available to the staff, and at the same time avoiding excessive impact force from causing harm to the staff, achieving the protection effect. The lower part of the connecting rod 71 is fixedly connected with the moving plate 72. The left end of the inner wall of the movable plate 72 is fixedly connected with the positioning wheel 73. The right end of the inner wall of the moving plate 72 is slidably connected with the protection wheel 74. The protection wheel 74 is fixedly connected with the second ratchet wheel 75. There are two groups of the second ratchet wheels 75, and they are arranged in central symmetry. The second ratchet wheel 75 penetrates the outer wall of the moving plate 72, and the penetration part is rotationally connected, so that the second ratchet wheel 75 can better hold the protection wheel 74, preventing the protection wheel 74 from rotating when it is held, thereby improving the stability and reliability of the protection wheel 74 and increasing the safety of rescue. The second pawl 77 is slidably connected to the inner wall of the lower side of the connecting plate 5. The upper end of the second pawl 77 is fixedly connected with the sliding pin 78. A chute 76 is provided on the outer wall of the lower side of the connecting plate 5.

[0025] Working principle: When the space in the elevator shaft is narrow and the top plate is too high, by rotating the rocker 61, the large gear 63 and the small gear 67 are driven to rotate. The rotation of the large gear 63 drives the front rack 64 to move upward, and the small gear 67 drives the transmission gear 68 to rotate, driving the rear rack 64 to rise, so that the lifting plate 65 rises, thereby lengthening the length of the pulley 4. And by setting the first ratchet wheel 610 and the first pawl 611, the large gear 63 and the small gear 67 cannot rotate downward, thus realizing the limiting function, enabling the pulley 4 to carry out the threading work at a relatively appropriate height, avoiding the situation that the angle of the rope body 1 is too small due to the pulley 4 being too high for the worker, making the threading work more troublesome. At the same time, the working angle of the rope body 1 is increased, thereby increasing the transmission ratio of the rope body 1, reducing the magnitude of the force that needs to be applied to the rope body 1, reducing the burden on the motor 3, and increasing the service life of the motor 3.

[0026] When an accident occurs, the rope body 1 pulls the moving plate 72, causing the moving plate 72 to move inward, making the second ratchet wheel 75 engage with the second pawl 77, limiting the protection wheel 74, preventing the protection wheel 74 from rotating downward, thereby increasing the friction force of the rope body 1, reducing the falling speed, providing more reaction time for the worker, and thus increasing the probability of survival. When pulling upward, the second ratchet wheel 75 has no impact on it, thus avoiding the situation where it cannot be pulled due to insufficient manpower.

[0027] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, any modifications or improvements made without departing from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. An adjustable safety rope for elevator installation, comprising a rope body (1), characterized in that: The right end of the rope body (1) is slidably connected to a rope winding barrel (2), and the two sides of the rope winding barrel (2) are fixedly connected to the ground. The front end of the rope winding barrel (2) is fixedly connected to a motor (3). The upper end of the rope body (1) is slidably connected to a pulley (4). The outer wall of the pulley (4) is fixedly connected to a connecting plate (5). An adjusting mechanism (6) is provided on the inner wall above the connecting plate (5). A protective mechanism (7) is provided below the pulley (4). The adjusting mechanism (6) comprises: A rocker (61), the left end of the rocker (61) is fixedly connected to a rotating rod (62), the rotating rod (62) passes through the right end of the connecting plate (5) and is rotatably connected thereto, the outer wall of the rotating rod (62) is fixedly connected to a large gear (63), and the left end of the large gear (63) is fixedly connected to a small gear (67); A lifting plate (65) is slidably connected to the two sides of the connecting plate (5), a rack (64) is fixed to the inner wall of the lifting plate (65), a large gear (63) is meshed on the inner side of the rack (64), and a fixed plate (66) is fixedly connected to the top of the lifting plate (65).

2. The adjustable safety rope for elevator installation according to claim 1, characterized in that: The rear side of the pinion (67) is meshed with a transmission gear (68), the inner wall of the transmission gear (68) is fixedly connected to a support rod (69), both ends of the support rod (69) are rotatably connected to the inner wall of the connecting plate (5), and the rear side of the transmission gear (68) is meshed with a rack (64).

3. The adjustable safety rope for elevator installation according to claim 1, characterized in that: The right end of the rotating rod (62) is fixedly connected to a ratchet wheel (610), and the right end of the connecting plate (5) is hingedly connected to a ratchet pawl (611).

4. The adjustable safety rope for elevator installation according to claim 1, characterized in that: The left end of the connecting plate (5) is hinged with a connecting rod (71), a movable plate (72) is fixedly connected below the connecting rod (71), a positioning wheel (73) is fixedly connected to the left end of the inner wall of the movable plate (72), a protection wheel (74) is slidably connected to the right end of the inner wall of the movable plate (72), a second ratchet (75) is fixedly connected to the protection wheel (74), and the second ratchet (75) penetrates the outer wall of the movable plate (72) and is rotatably connected at the penetration point.

5. The adjustable safety rope for elevator installation according to claim 1, characterized in that: The inner wall at the lower side of the connecting plate (5) is slidably connected with a second ratchet (77), the upper end of the second ratchet (77) is fixedly connected with a sliding pin (78), and the outer wall at the lower side of the connecting plate (5) is provided with a sliding groove (76).

6. The adjustable safety rope for elevator installation according to claim 4, characterized in that: The ratchet wheels (75) are provided in two groups and are arranged in a centrally symmetrical manner.

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