Safety belt double-hook speed-difference self-controller

Abstract

The utility model belongs to the technical field of safety belt, especially a safety belt double hook speed difference self -control ware, including speed difference self -control ware installation box, the inside rotation of speed difference self -control ware installation box is installed with the winding roll, the outside of winding roll is wound with the wire rope, acceleration sensor links to each other with winding roll, can real -time response winding roll's rotational speed. When the work personnel falls accidentally, winding roll accelerates rotation, acceleration sensor will signal transmission to external controller, external controller can control electric telescopic rod, electric telescopic rod is installed above speed difference self -control ware installation box, and its telescopic end is connected with ratchet pawl through mounting plate, external controller controls electric telescopic rod to stretch out according to the signal of acceleration sensor, drives ratchet pawl to move, makes ratchet pawl and the ratchet wheel outside winding roll engage, thereby locks winding roll, realizes the brake of wire rope, and the falling of work personnel is stopped fast.

Description

Technical Field

[0001] This utility model relates to the field of seat belt technology, and in particular to a seat belt double hook speed difference self-control device. Background Technology

[0002] The speed differential automatic control device, also known as the speed differential fall arrestor, is used to prevent personnel from falling accidentally while working at heights. Even if an accidental fall occurs, it can quickly and effectively ensure the safety of personnel. It can quickly brake and lock the falling personnel within a limited distance to protect their lives.

[0003] When in use, the triggering method of some speed difference self-control mechanisms is not sensitive enough, and they cannot detect the accidental fall of the operator in a timely and accurate manner, resulting in braking delay and increasing the risk of injury to the operator; therefore, we propose a safety belt double hook speed difference self-control device. Utility Model Content

[0004] The purpose of this invention is to provide a seat belt double hook speed difference self-control device, which solves the existing problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A seatbelt double-hook speed differential controller includes a speed differential controller mounting box. A winding roller is rotatably mounted on the inner side of the speed differential controller mounting box. A steel wire rope is wound on the outer side of the winding roller. Two nylon ropes are fixedly mounted on the outer side of one end of the steel wire rope. A hook is fixedly mounted on the outer side of one end of the nylon rope. An acceleration sensor is fixedly mounted on the inner wall of one side of the speed differential controller mounting box. The winding roller is electrically connected to the acceleration sensor.

[0007] Preferably, an electric telescopic rod is fixedly installed on the top of the speed difference controller mounting box, and an mounting plate is fixedly installed on the output end of the electric telescopic rod. The electric telescopic rod is electrically connected to the acceleration sensor.

[0008] Preferably, a pawl is fixedly installed at the bottom of the mounting plate, and a ratchet is fixedly installed on the outer side of the winding roller, with the pawl and the ratchet engaging.

[0009] Preferably, a motor is fixedly installed on one inner wall of the speed difference controller mounting box, a drive shaft is fixedly installed at the output end of the motor, and transmission gears are fixedly installed on the outer sides of the drive shaft and the winding roller, with adjacent transmission gears meshing.

[0010] Preferably, the bottom inner wall of the speed differential controller mounting box is provided with a through groove, and four mounting blocks are fixedly installed on the inner side of the through groove. A guide shaft is rotatably installed between one side of each mounting block.

[0011] Preferably, a sliding groove is provided on the right side of the speed difference controller mounting box, and the mounting plate is slidably disposed inside the sliding groove.

[0012] Preferably, the mounting block is U-shaped and is located at the four inner corners of the through groove.

[0013] Preferably, the outer surface of the guide shaft is smooth.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) The present invention relates to a safety belt double hook speed difference self-control device, wherein the acceleration sensor is connected to the winding roller and can sense the rotation speed of the winding roller in real time. When the operator falls accidentally and the winding roller accelerates, the acceleration sensor transmits the signal to the external controller; the external controller can control the electric telescopic rod, which is installed above the speed difference self-control device mounting box, and its telescopic end is connected to the pawl through the mounting plate; according to the signal from the acceleration sensor, the external controller controls the electric telescopic rod to extend, drive the pawl to move, so that the pawl engages with the ratchet on the outside of the winding roller, thereby locking the winding roller, realizing the braking of the wire rope, and quickly stopping the operator's fall;

[0016] (2) The present invention provides a safety belt double hook speed difference self-control device, in which the wire rope is set in the middle of multiple guide shafts. The guide shafts can guide the wire rope and prevent the wire rope from wearing during use, which can effectively improve safety. The motor can drive the drive shaft and transmission gear to rotate. After the transmission gear rotates, it can drive the winding roller to rotate, so that the winding roller can rewind and unwind the wire more conveniently and quickly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a seat belt double hook speed difference self-control device proposed in this utility model;

[0019] Figure 2 This is a partial three-dimensional structural diagram of a seat belt double hook speed difference self-control device proposed in this utility model;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the mounting block and guide shaft proposed in this utility model.

[0021] Figure 4 This is a partial three-dimensional structural diagram of the mounting plate and ratchet pawl proposed in this utility model.

[0022] In the diagram: 1. Speed ​​differential controller mounting box; 2. Winding roller; 3. Steel wire rope; 4. Nylon rope; 5. Hook; 6. Acceleration sensor; 7. Electric telescopic rod; 8. Mounting plate; 9. Pawl; 10. Ratchet; 11. Motor; 12. Drive shaft; 13. Transmission gear; 14. Through slot; 15. Mounting block; 16. Guide shaft. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] refer to Figure 1-4 A safety belt double-hook speed differential controller includes a speed differential controller mounting box 1. A winding roller 2 is rotatably mounted inside the speed differential controller mounting box 1. A steel wire rope 3 is wound around the outside of the winding roller 2. Two nylon ropes 4 are fixedly mounted on the outside of one end of the steel wire rope 3. A hook 5 is fixedly mounted on the outside of one end of the nylon rope 4. An acceleration sensor 6 is fixedly mounted on the inner wall of one side of the speed differential controller mounting box 1. The winding roller 2 is electrically connected to the acceleration sensor 6. The steel wire rope 3 is wound on the winding roller 2. Two nylon ropes 4 are fixedly connected to one end of the steel wire rope 3. The other end of each nylon rope 4 is provided with a hook 5 for connecting to the worker's safety belt. In this embodiment, an electric telescopic rod 7 is fixedly mounted on the top of the speed differential controller mounting box 1. An installation plate 8 is fixedly mounted on the output end of the electric telescopic rod 7. The electric telescopic rod 7 is electrically connected to the acceleration sensor 6.

[0025] In this embodiment, a pawl 9 is fixedly installed on the bottom of the mounting plate 8, and a ratchet 10 is fixedly installed on the outer side of the winding roller 2. The pawl 9 and the ratchet 10 mesh with each other. The acceleration sensor 6 is connected to the winding roller 2 and can sense the rotation speed of the winding roller 2 in real time. When a worker falls accidentally, the winding roller 2 accelerates, and the acceleration sensor 6 transmits a signal to the external controller. The external controller can control the electric telescopic rod 7, which is installed above the speed difference controller mounting box 1. Its telescopic end is connected to the pawl 9 via the mounting plate 8. According to the signal from the acceleration sensor 6, the external controller controls the electric telescopic rod 7 to extend, driving the pawl 9 to move, so that the pawl 9 engages with the ratchet 10 on the outside of the winding roller 2, thereby locking the winding roller 2 and braking the wire rope 3 to quickly stop the worker's fall. In this embodiment, a motor 11 is fixedly installed on the inner wall of one side of the speed difference controller mounting box 1. A drive shaft 12 is fixedly installed at the output end of the motor 11. Transmission gears 13 are fixedly installed on the outer side of both the drive shaft 12 and the winding roller 2, and adjacent transmission gears 13 mesh with each other.

[0026] In this embodiment, a through groove 14 is provided on the bottom inner wall of the speed difference controller mounting box 1, and four mounting blocks 15 are fixedly installed on the inner side of the through groove 14. A guide shaft 16 is rotatably installed between one side of the mounting blocks 15. In this embodiment, a sliding groove is provided on the right side of the speed difference controller mounting box 1, and the mounting plate 8 is slidably disposed on the inner side of the sliding groove.

[0027] In this embodiment, the mounting block 15 is U-shaped and is located at the four inner corners of the through groove 14. The mounting position of the mounting block 15 allows multiple guide shafts 16 to protect the wire rope 3, ensuring that the wire rope 3 can be protected and guided by the guide shafts 16 regardless of which side it deviates to, thus making the device have a large protection area. In this embodiment, the outer surface of the guide shaft 16 is smooth. The smooth guide shaft 16 prevents the wire rope 3 from wearing out during sliding.

[0028] The implementation principle of a safety belt double-hook speed differential self-control device in this embodiment is as follows: A steel wire rope 3 is wound around a winding roller 2. One end of the steel wire rope 3 is fixedly connected to two nylon ropes 4, and the other end of each nylon rope 4 is equipped with a hook 5 for connecting to the worker's safety belt. An acceleration sensor 6 is connected to the winding roller 2 and can sense the rotational speed of the winding roller 2 in real time. When a worker falls accidentally, and the winding roller 2 accelerates, the acceleration sensor 6 transmits a signal to an external controller. The external controller can control an electric telescopic rod 7, which is installed above the speed differential self-control device mounting box 1. Its telescopic end is connected to a pawl 9 via a mounting plate 8. Based on the signal from the acceleration sensor 6, the external controller controls the electric telescopic rod 7 to extend, causing the pawl 9 to move and engage with the ratchet 10 on the outside of the winding roller 2, thereby locking the winding roller 2 and braking the steel wire rope 3 to quickly stop the worker's fall.

[0029] The wire rope 3 is positioned in the middle of multiple guide shafts 16. The guide shafts 16 can guide the wire rope 3 and prevent wear during use, thus effectively improving safety. The motor 11 can drive the drive shaft 12 and the transmission gear 13 to rotate. After the transmission gear 13 rotates, it can drive the winding roller 2 to rotate, making it more convenient and faster to wind and unwind the wire.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above provides a detailed description of the seatbelt double-hook speed differential self-control device provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A dual-hook speed-difference self-retractor for a safety belt, characterized in that, include: A speed difference controller mounting box (1) is provided. A winding roller (2) is rotatably mounted on the inner side of the speed difference controller mounting box (1). A steel wire rope (3) is wound on the outer side of the winding roller (2). Two nylon ropes (4) are fixedly mounted on the outer side of one end of the steel wire rope (3). A hook (5) is fixedly mounted on the outer side of one end of the nylon rope (4). An acceleration sensor (6) is fixedly mounted on the inner wall of one side of the speed difference controller mounting box (1). The winding roller (2) is electrically connected to the acceleration sensor (6).

2. The dual-hook, speed-sensitive, automatic belt retractor according to claim 1, characterized in that An electric telescopic rod (7) is fixedly installed on the top of the speed difference controller mounting box (1). An mounting plate (8) is fixedly installed on the output end of the electric telescopic rod (7). The electric telescopic rod (7) is electrically connected to the acceleration sensor (6).

3. The dual-hook, speed-sensitive, automatic belt retractor according to claim 2, wherein, A pawl (9) is fixedly installed at the bottom of the mounting plate (8), and a ratchet (10) is fixedly installed on the outer side of the winding roller (2). The pawl (9) and the ratchet (10) mesh with each other.

4. The dual-hook, speed-sensitive, automatic belt retractor according to claim 1, wherein, A motor (11) is fixedly installed on one side of the inner wall of the speed difference controller mounting box (1). A drive shaft (12) is fixedly installed at the output end of the motor (11). Transmission gears (13) are fixedly installed on the outer side of the drive shaft (12) and the winding roller (2). Two adjacent transmission gears (13) mesh with each other.

5. The dual-hook, speed-sensitive, automatic belt retractor according to claim 1, wherein, The bottom inner wall of the speed difference controller mounting box (1) is provided with a through groove (14), and four mounting blocks (15) are fixedly installed on the inner side of the through groove (14). A guide shaft (16) is rotatably installed between one side of the mounting blocks (15).

6. The dual-hook, speed-sensitive, automatic belt retractor according to claim 2, wherein, The right side of the speed difference controller mounting box (1) is provided with a sliding groove, and the mounting plate (8) is slidably disposed inside the sliding groove.

7. The dual-hook, speed-sensitive, automatic belt retractor according to claim 5, wherein, The mounting block (15) is shaped like a square and is located at the four inner corners of the through groove (14).

8. The dual-hook, speed-sensitive, automatic belt retractor according to claim 5, wherein, The outer surface of the guide shaft (16) is smooth.

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