Rope anti-falling speed difference device
By introducing a cleaning brush and an alarm system into the rope fall arrestor, the problems of wear caused by dust and insufficient alarms have been solved, thereby improving service life and safety.
Patent Information
- Application Number
- CN202520121794.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing rope fall arrestor differential devices are prone to increased wear and reduced slippage due to dust adhesion during use, and they also fail to provide timely alarms, affecting efficiency and safety.
The design incorporates a fixed frame, cleaning brush, and guide wheel structure to clean dust from the rope surface, and a chuck, crescent plate, tactile switch, and buzzer structure to provide timely alarm in case of accidental fall.
It effectively cleans dust from the rope surface, prevents wear and tear, and improves service life and efficiency. At the same time, it provides timely alarms in case of accidental falls, enhancing safety.
Smart Images
Figure CN223874275U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of differential anti-falling devices, and particularly relates to a rope anti-falling differential device. BACKGROUND
[0002] The differential anti-falling device can quickly brake and lock a falling object within a limited distance, is suitable for hoisting goods, protects the life safety of ground operators and the undamaged of hoisted workpiece objects, has wide application, and especially when used for high-altitude work of electricians, the differential anti-falling device can guarantee the personal safety of the electricians; when the electricians accidentally fall, the differential device can pull the electricians to guarantee that the electricians will not fall down.
[0003] However, the existing rope anti-falling differential device has the following defects: for example, dust may be adhered to the rope during daily use and brought into the device, which aggravates the abrasion of the rotating shaft, and as the adhered dust accumulates in the differential device, the sliding property of the rope may be affected, the rope is not smooth to use, and the efficiency of the device is reduced; in addition, the device cannot alarm in time when a user accidentally falls, so that the falling user cannot be rescued in time, and therefore, the rope anti-falling differential device is improved. SUMMARY
[0004] The application aims to provide a rope anti-falling differential device which can reduce the problem of dust adhered to the surface of the rope during use of the differential device, thereby prolonging the service life of the differential device and improving the efficiency during use.
[0005] To achieve the above object, the technical scheme adopted by the application is as follows: a casing is provided, a rotating shaft is rotationally connected to the middle part of the casing, a rotating shaft and a connecting rope are respectively sleeved on the outer wall of the rotating shaft, a chuck is fixedly connected to the outer wall of the rotating shaft, a fixed pin and a fixed plate are respectively fixedly connected to the outer wall of the chuck, a crescent plate is rotationally connected to the outer wall of the fixed pin, a spring is fixedly connected between the crescent plate and the fixed plate, a positioning clamping groove is formed in the inner wall of the casing, the crescent plate is movably sleeved on the positioning clamping groove, a tactile switch is connected to the inner wall of the positioning clamping groove, and a buzzer is fixedly arranged outside the casing.
[0006] A fixed frame is fixedly connected to the lower end of the casing, mounting racks are fixedly connected to the inner walls on the two sides of the fixed frame, guide wheels are rotationally connected to the mounting racks, and a cleaning brush is fixedly connected to the open inner wall at the lower end of the fixed frame.
[0007] As a preferred, the number of the fixed pins, the crescent plates and the fixed plates is multiple, and the multiple fixed pins, the crescent plates and the fixed plates are evenly distributed on the surface of the chuck.
[0008] As a kind of preferred, the number of positioning slot is provided with multiple, and multiple positioning slot and multiple crescent plate are correspondingly provided.
[0009] As a kind of preferred, the connecting rope is arranged between two guide wheels, the cleaning brush is arranged around the surface of the connecting rope, and the cleaning brush is made of soft material.
[0010] As a kind of preferred, the mounting slot is formed on the shell, the sealing cover is arranged on the shell, the sealing cover is fixedly connected to the mounting slot on the shell by screw thread, and the buzzer is fixedly connected to the outer wall of the sealing cover.
[0011] As a kind of preferred, the upper end of the shell is fixedly connected with a hook one, and one end of the connecting rope penetrates the cleaning brush and is fixedly connected with a hook two.
[0012] Compared with the prior art, the beneficial effects of the present application are:
[0013] (1) By setting the fixed frame, the cleaning brush, the mounting bracket and the guide wheel structure, the connecting rope can be guided by the guide wheel during movement, so that it can stably pass through the cleaning brush, thereby cleaning the surface dust of the connecting rope during winding, avoiding the problem that dust enters the shell of the speed difference device to cause the shaft to wear out and the device to be not smooth enough in use, and ensuring the use efficiency of the rope;
[0014] (2) By setting the chuck, the fixed pin, the crescent plate, the fixed plate, the spring, the positioning slot, the light touch switch and the buzzer structure, when the device falls accidentally, the crescent plate can be thrown away and clamped into the positioning slot under the action of centrifugal force, the light touch switch is pressed to turn on the buzzer to remind the surrounding related personnel to rescue in time, and the safety in use is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is an external structure diagram of the rope anti-falling speed difference device;
[0016] Figure 2 It is a sealing cover dismounting structure diagram of the rope anti-falling speed difference device;
[0017] Figure 3 It is an internal structure diagram of the rope anti-falling speed difference device;
[0018] Figure 4 It is a light touch switch position structure diagram of the rope anti-falling speed difference device.
[0019] In the figure: 1, the shell; 2, the rotating shaft; 3, the fixed pin; 4, the crescent plate; 5, the fixed plate; 6, the spring; 7, the positioning slot; 8, the light touch switch; 9, the installation groove; 10, the sealing cover; 11, the buzzer; 12, the connecting rope; 13, the hook one; 14, the hook two; 15, the fixed frame; 16, the cleaning brush; 17, the mounting bracket; 18, the guide wheel; 19, the chuck. DETAILED DESCRIPTION
[0020] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that, without conflict, the following described embodiments or technical features can be combined in any manner to form new embodiments.
[0021] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.
[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.
[0023] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0024] As Figures 1-4The rope anti-falling speed difference device shown comprises a casing 1, a rotating shaft 2 rotatably connected to the middle part of the casing 1, a connecting rope 12 and the rotating shaft 2 respectively sleeved on the outer wall of the rotating shaft 2, a chuck 19 fixedly connected to the outer wall of the rotating shaft 2, a fixed pin 3 and a fixed plate 5 respectively fixedly connected to the outer wall of the chuck 19, a crescent plate 4 rotatably connected to the outer wall of the fixed pin 3, a spring 6 fixedly connected between the crescent plate 4 and the fixed plate 5, a positioning clamping groove 7 formed in the inner wall of the casing 1, and the crescent plate 4 movably sleeved on the positioning clamping groove 7. When an unexpected falling occurs, the connecting rope 12 drives the rotating shaft 2 to rotate rapidly, and in turn drives the chuck 19 to rotate rapidly, flings the crescent plate 4 away, and makes it clamped into the positioning clamping groove 7, so as to lock the connecting rope 12 and achieve the purpose of anti-falling. The inner wall of the positioning clamping groove 7 is connected with a light touch switch 8, and the outer part of the casing 1 is fixedly provided with a buzzer 11. When the crescent plate 4 is clamped into the positioning clamping groove 7, the light touch switch 8 is pressed to open the buzzer 11, and an alarm is sent out through the buzzer 11 to remind the surrounding personnel. The lower end of the casing 1 is fixedly connected with a fixed frame 15, the inner walls of the two sides of the fixed frame 15 are both fixedly connected with a mounting bracket 17, a guide wheel 18 is rotatably connected to the two mounting brackets 17, and a cleaning brush 16 is fixedly connected to the lower end opening inner wall of the fixed frame 15. Under the guidance of the guide wheel 18, the connecting rope 12 stably passes through the cleaning brush 16, and the surface dust of the connecting rope 12 is cleaned by the cleaning brush 16, so as to improve the service life of the device.
[0025] The number of the fixed pins 3, the crescent plates 4 and the fixed plates 5 is all set to be multiple, the multiple fixed pins 3, the crescent plates 4 and the fixed plates 5 are evenly distributed on the surface of the chuck 19, the number of the positioning clamping grooves 7 is set to be multiple, and the multiple positioning clamping grooves 7 and the multiple crescent plates 4 are correspondingly arranged, and the shape of the positioning clamping groove 7 and the shape of the crescent plate 4 are matched with each other.
[0026] The connecting rope 12 is arranged between the two guide wheels 18, the cleaning brush 16 is arranged around the surface of the connecting rope 12, and the cleaning brush 16 is made of soft material to avoid causing large wear to the connecting rope 12. The upper end of the casing 1 is fixedly connected with a hook one 13, one end of the connecting rope 12 penetrates through the cleaning brush 16 and is fixedly connected with a hook two 14. The hook one 13 is used to connect a fixed object, and the hook two 14 is used to connect a worker.
[0027] An installation groove 9 is formed in the casing 1, a sealing cover 10 is arranged on the casing 1, the sealing cover 10 is fixedly installed on the casing 1 through the threaded connection of the installation groove 9, the buzzer 11 is fixedly connected to the outer wall of the sealing cover 10, and the inside of the device can be conveniently overhauled after the sealing cover 10 is disassembled according to the need.
[0028] Working principle: during the use of the connecting rope 12, the device is guided by the guide wheel 18, so that it can be stably wound and unwound from the cleaning brush 16, and the surface adhered dust is cleaned by the cleaning brush 16, which can avoid the problem of increased wear caused by increased friction during the use of the connecting rope 12 due to dust, and can also avoid the accumulation of dust in the shell 1, which ultimately leads to the problem of device jamming, affecting the safety of relevant personnel;
[0029] In addition, when the user falls accidentally, the connecting rope 12 is quickly pulled out, the chuck 19 rotates quickly, so that the crescent plate 4 can be thrown away and clamped into the positioning clamping groove 7 under the action of centrifugal force, the press-fit micro switch 8 is pressed to make the buzzer 11 work and sound, so as to timely remind the surrounding personnel and facilitate rescue.
[0030] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A rope fall arrest speed difference device, comprising a casing (1), characterized in that: the middle part of the casing (1) is rotationally connected with a rotating shaft (2), the outer wall of the rotating shaft (2) is respectively sleeved with the rotating shaft (2) and a connecting rope (12), the outer wall of the rotating shaft (2) is fixedly connected with a chuck (19), the outer wall of the chuck (19) is respectively fixedly connected with a fixed pin (3) and a fixed plate (5), the outer wall of the fixed pin (3) is rotationally connected with a crescent plate (4), the crescent plate (4) and the fixed plate (5) are fixedly connected with a spring (6), the inner wall of the casing (1) is provided with a positioning clamping groove (7), the crescent plate (4) is movably sleeved with the positioning clamping groove (7), the inner wall of the positioning clamping groove (7) is connected with a tactile switch (8), and the outer part of the casing (1) is fixedly provided with a buzzer (11); the lower end of the casing (1) is fixedly connected with a fixed frame (15), the inner walls of the two sides of the fixed frame (15) are both fixedly connected with a mounting bracket (17), the two mounting brackets (17) are rotationally connected with a guide wheel (18), and the lower end opening inner wall of the fixed frame (15) is fixedly connected with a cleaning brush (16).
2. A rope fall arrest rate difference device as claimed in claim 1, characterised in that: The number of the fixed pin (3), the crescent plate (4) and the fixed plate (5) is multiple, and the multiple fixed pins (3), the crescent plates (4) and the fixed plates (5) are evenly distributed on the surface of the chuck (19).
3. A rope arrestment rate difference device as claimed in claim 1, characterised in that: The number of the positioning clamping groove (7) is multiple, and the multiple positioning clamping grooves (7) and the multiple crescent plates (4) are correspondingly arranged.
4. A rope fall arrest rate difference device as claimed in claim 1, characterised in that: The connecting rope (12) is arranged between the two guide wheels (18), the cleaning brush (16) is arranged around the surface of the connecting rope (12), and the cleaning brush (16) is made of soft material.
5. A rope fall arrest rate difference device as claimed in claim 1, characterised in that: The casing (1) is provided with a mounting groove (9), the casing (1) is provided with a sealing cover (10), the sealing cover (10) is fixedly installed on the casing (1) by being threadedly connected with the mounting groove (9), and the buzzer (11) is fixedly connected with the outer wall of the sealing cover (10).
6. A rope fall arrest rate difference device as claimed in claim 1, characterised in that: The upper end of the casing (1) is fixedly connected with a hook one (13), and one end of the connecting rope (12) penetrates through the cleaning brush (16) and is fixedly connected with a hook two (14).