Aerial work safety belt weightlessness self-locking device

Abstract

The utility model relates to a self-locking device, in particular to a weightlessness self-locking device for an aerial work safety belt. The utility model provides a weightlessness self-locking device of a safety belt for aloft work, which can lock a steel strand emergently. The aerial work safety belt weightlessness self-locking device comprises a safety belt, a safety hook IV, a first safety rope, a safety hook II, a safety hook III, a steel strand and the like, the safety hook IV is hooked on the safety belt, the safety hook IV is connected with the first safety rope, and the safety hook III is connected with the steel strand. The upper end of the first safety rope is connected with a safety hook II, the safety belt is hooked with a safety hook III through a steel ring, and the safety hook III is connected with a steel strand. And by arranging a telescopic rod, a sleeve and a reset spring, the telescopic rod is thrown out to make contact with the side wall of the limiting block to fix the winding wheel, then the steel strand is emergently locked, and the situation that the steel strand continues to be pulled out, and a worker falls is avoided.

Description

Technical Field

[0001] The utility model relates to a self-locking device, in particular to a weightlessness self-locking device for a safety belt of an aerial work. Background Art

[0002] Aerial work usually refers to work at height, which refers to work performed by people at a height based on a certain position. Aerial work is a high-risk work. In order to facilitate precautions during the operation and effectively prevent accidents where people fall from heights, workers need to wear safety belts when performing aerial work to ensure their own safety.

[0003] The patent with the patent authorization announcement number CN206535018U discloses a portable high-altitude work safety belt, including a rope belt and a safety rope box, wherein the rope belt includes two shoulder straps with sharp angles, a long waist belt, and a connecting belt connecting the shoulder straps and the waist belt. Although the above patent can realize the positioning of the steel strand by setting the stop clip to open and close, when the steel strand is extended during the operation, the worker may lose weight. The safety belt is not provided with a self-locking structure, so the steel strand cannot be locked urgently, which easily causes the steel strand to continue to extend and cause the worker to fall.

[0004] Therefore, there is a particular need for a weightless self-locking device for a high-altitude work safety belt that can urgently lock a steel strand to solve the problems existing in the prior art. Utility Model Content

[0005] In order to overcome the disadvantage that in the prior art, when controlling the extension of the steel strand, the worker may suffer from weightlessness, and the safety belt is not provided with a self-locking structure, so that the steel strand cannot be urgently locked, which easily causes the steel strand to continue to extend and cause the worker to fall, the utility model provides a weightlessness self-locking device for a high-altitude work safety belt that can urgently lock the steel strand.

[0006] The utility model is realized by the following technical means: a weightless self-locking device for a safety belt for aerial work, comprising a safety belt, a safety hook IV, a first safety rope, a safety hook II, a safety hook III, a steel strand, an outer shell I, a reel, a second safety rope and a safety hook I, wherein the safety belt is hooked with a safety hook IV, the safety hook IV is connected to the first safety rope, the upper end of the first safety rope is connected to a safety hook II, the safety belt is hooked with a safety hook III through a steel ring, the safety hook III is connected to a steel strand, the outer shell I is rotatably connected with a reel, the outer shell I is connected to the second safety rope, the upper end of the second safety rope It is connected with a safety hook I, the steel strand is wound on the winding wheel, and the safety belt is also provided with a self-locking structure for emergency locking of the steel strand. The self-locking structure is composed of a sleeve, a telescopic rod, a reset spring and a limit block. The winding wheel is fixedly connected with a circumferentially distributed sleeve, the inside of the sleeve is slidably connected with the telescopic rod, a reset spring is connected between the telescopic rod and the sleeve, and the inside of the shell I is fixedly connected with a circumferentially distributed limit block. The winding wheel is rotated quickly by quickly pulling out the steel strand, and the telescopic rod is thrown out from the sleeve, and the telescopic rod contacts the side wall of the limit block to fix the winding wheel.

[0007] Optionally, it also includes a shell II, a cam and a ratchet, the shell I is fixedly connected to the shell II, the shell II is fixedly connected to a cam, the cam is fixedly connected to a ratchet, the cam is rotated by sliding the first safety rope, and the two groups of ratchets cooperate to clamp the first safety rope.

[0008] Optionally, a roller and a damper are further included, the cam is fixedly connected to a roller, the roller is connected to a plurality of dampers, the damper is in contact with the first safety rope, and the damper is used to increase friction.

[0009] Optionally, the plurality of dampers are distributed comprehensively on the edge of the roller.

[0010] Optionally, the damper is made of rubber.

[0011] Optionally, a sensor is also included, and sensors are installed on the safety hook I, the safety hook II and the safety hook IV.

[0012] Optionally, a buzzer is further included. The housing I is provided with a buzzer, and the sensor is electrically connected to the buzzer.

[0013] Optionally, the front part of the buzzer protrudes from the inside of the housing I.

[0014] Optionally, a soft rubber shoulder strap is also included, and the safety belt is connected to the soft rubber shoulder strap, and the soft rubber shoulder strap is used for decompression.

[0015] Optionally, the soft rubber shoulder strap is connected to the safety belt in a C shape.

[0016] The above description of the structure of the utility model shows that the design starting point, concept and advantages of the utility model are:

[0017] 1. By setting a telescopic rod, a sleeve and a return spring, the telescopic rod is swung out to contact the side wall of the limit block to fix the winding wheel, thereby urgently locking the steel strand to prevent the steel strand from being pulled out further and causing the worker to fall.

[0018] 2. The second safety rope slides to make the cam, roller and damper cooperate, and then the two sets of ratchets cooperate to clamp the second safety rope, so as to achieve the effect of emergency locking of the second safety rope and further prevent the worker from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the safety hook I, the safety hook II and the shell I of the utility model.

[0021] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the first safety rope, the second safety rope and the buzzer of the utility model.

[0022] Figure 4 The utility model is a three-dimensional cross-sectional structural schematic diagram of the winding wheel, sleeve and telescopic rod.

[0023] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the housing I, the first safety rope and the cam of the utility model.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the roller, ratchet and damping of the utility model.

[0025] Explanation of the accompanying drawings: 1. Safety belt, 2. Safety hook I, 3. Safety hook II, 4. Shell I, 401. Winding wheel, 402. Sleeve, 403. Telescopic rod, 404. Return spring, 405. Limit block, 5. Steel strand, 6. Safety hook III, 7. First safety rope, 701. Second safety rope, 8. Shell II, 801. Cam, 802. Roller, 803. Ratchet, 804. Damping, 9. Safety hook IV, 10. Sensor, 11. Buzzer, 12. Soft rubber shoulder strap. DETAILED DESCRIPTION

[0026] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] Embodiment 1: A weightless self-locking device for a safety belt for aerial work, see Figure 1-Figure 5As shown, it includes a safety belt 1, a safety hook IV9, a first safety rope 7, a safety hook III6, a safety hook II3, a steel strand 5, a shell I4, a reel 401, a second safety rope 701, a safety hook I2, a sensor 10, a buzzer 11 and a soft rubber shoulder strap 12. The safety belt 1 is hooked with a safety hook IV9, the safety hook IV9 is connected to the first safety rope 7, the upper end of the first safety rope 7 is connected to the safety hook II3, the safety belt 1 is hooked with a safety hook III6 through a steel ring, the safety hook III6 is connected to the steel strand 5, the shell I4 is rotatably connected with a reel 401, the shell I4 is connected to the second safety rope 701, the upper end of the second safety rope 701 is connected to the safety hook I2, the steel strand 5 is wound on the reel 401, the safety hook I2, the safety hook II3 and the safety hook IV9 are all installed with sensors, the shell I4 is installed with a buzzer 11, the sensor The sensor 10 is electrically connected to the buzzer 11, and the front part of the buzzer 11 protrudes from the inside of the shell I4. The safety belt 1 is connected to a soft rubber shoulder strap 12, and the soft rubber shoulder strap 12 is used for decompression. The soft rubber shoulder strap 12 is connected to the safety belt 1 in a C shape. The safety belt 1 also includes a self-locking structure for emergency locking of the steel strand 5. The self-locking structure consists of a sleeve 402, a telescopic rod 403, a reset spring 404 and a limit block 405. The sleeve 402 distributed in a circumferential direction is fixedly connected to the winding wheel 401, and the telescopic rod 403 is slidably connected inside the sleeve 402. A reset spring 404 is connected between the telescopic rod 403 and the sleeve 402, and a circumferentially distributed limit block 405 is fixedly connected inside the shell I4. The winding wheel 401 rotates rapidly by quickly pulling out the steel strand 5, and the telescopic rod 403 is thrown out from the sleeve 402. The telescopic rod 403 contacts the side wall of the limit block 405 to fix the winding wheel 401.

[0028] First, the worker wears the safety belt 1 on the upper body, and the soft rubber shoulder strap 12 reduces the pressure between the safety belt 1 and the worker's shoulder, making the worker more comfortable when wearing it. Then, the safety hook Ⅰ2 and the safety hook Ⅱ3 are hooked on the building wall. When the safety hook Ⅰ2 and the safety hook Ⅱ3 are not hooked well, the sensor 10 senses that the pressure of the safety hook Ⅰ2 and the safety hook Ⅱ3 is insufficient, and then transmits the information to the buzzer 11. The buzzer 11 emits a sound to remind the worker to check. After the inspection is completed, the high-altitude operation is carried out. When the worker loses weight, the steel strand 5 is quickly pulled out from the winding wheel 401 to make the winding wheel 401 rotate quickly, and then the telescopic rod 403 is thrown out from the sleeve 402, and the reset spring 404 is stretched accordingly. The telescopic rod 403 is thrown out and contacts the side wall of the limit block 405 to fix the winding wheel 401, and then the steel strand 5 is urgently locked to prevent the steel strand 5 from continuing to be pulled out and causing the worker to fall.

[0029] Example 2: Based on Example 1, refer to Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, it also includes a shell II8, a cam 801, a ratchet 803, a roller 802 and a damper 804. The shell II8 is fixedly connected to the shell I4, and the cam 801 is fixedly connected inside the shell II8. The ratchet 803 is fixedly connected to the cam 801, and the roller 802 is fixedly connected to the cam 801. A plurality of dampers 804 are connected to the roller 802. The damper 804 is in contact with the first safety rope 7. The damper 804 is used to increase friction. The damper 804 is made of rubber. The plurality of dampers 804 are fully distributed on the edge of the roller 802. The cam 801 is rotated by the sliding of the first safety rope 7, so that the two sets of ratchets 803 cooperate to clamp the first safety rope 7.

[0030] When the safety hook IV9 is detached from the safety belt 1, the second safety rope 701 slides to make the cam 801 rotate to a suitable angle, so that the two sets of ratchets 803 cooperate to clamp the second safety rope 701, thereby achieving the effect of emergency locking of the second safety rope 701, further preventing the worker from falling. At the same time, the cam 801 drives the roller 802 to rotate, and the damping 804 increases the friction between the roller 802 and the second safety rope 701, thereby slowing down the sliding speed of the second safety rope 701, so that the two sets of ratchets 803 can better clamp the second safety rope 701.

[0031] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. A weightless self-locking device for a high-altitude work safety belt, comprising a safety belt (1), a safety hook IV (9), a first safety rope (7), a safety hook II (3), a safety hook III (6), a steel strand (5), an outer shell I (4), a reel (401), a second safety rope (701) and a safety hook I (2), wherein the safety belt (1) is hooked with a safety hook IV (9), the safety hook IV (9) is connected to the first safety rope (7), the upper end of the first safety rope (7) is connected to the safety hook II (3), the safety belt (1) is hooked with a safety hook III (6) through a steel ring, the safety hook III (6) is connected to the steel strand (5), the outer shell I (4) is rotatably connected with a reel (401), the outer shell I (4) is connected to the second safety rope (701), the upper end of the second safety rope (701) is connected to the safety hook I (2), and the steel strand (5) is wound on the reel (401), characterized in that: The safety belt (1) is also provided with a self-locking structure for emergency locking of the steel strand (5), the self-locking structure being composed of a sleeve (402), a telescopic rod (403), a reset spring (404) and a limit block (405), the winding wheel (401) being fixedly connected with a circumferentially distributed sleeve (402), the sleeve (402) being slidably connected with a telescopic rod (403), a reset spring (404) being connected between the telescopic rod (403) and the sleeve (402), and the housing I (4) being fixedly connected with a circumferentially distributed limit block (405).

2. A weightless self-locking device for a safety belt for aerial work according to claim 1, characterized in that: It also includes a shell II (8), a cam (801) and a ratchet (803); the shell II (8) is fixedly connected to the shell I (4); the cam (801) is fixedly connected inside the shell II (8); and the ratchet (803) is fixedly connected to the cam (801).

3. A weightless self-locking device for a safety belt for aerial work according to claim 2, characterized in that: It also includes a roller (802) and a damper (804); the cam (801) is fixedly connected to the roller (802); the roller (802) is connected to a plurality of dampers (804); the dampers (804) are in contact with the first safety rope (7); and the dampers (804) are used to increase friction.

4. A weightless self-locking device for a safety belt for aerial work according to claim 3, characterized in that: The plurality of dampers (804) are distributed on the edge of the roller (802).

5. A weightless self-locking device for a safety belt for aerial work according to claim 4, characterized in that: The damper (804) is made of rubber.

6. A weightless self-locking device for a safety belt for aerial work according to claim 5, characterized in that: It also includes a sensor (10), and the safety hook I (2), the safety hook II (3) and the safety hook IV (9) are all equipped with the sensor (10).

7. A weightless self-locking device for a safety belt for aerial work according to claim 6, characterized in that: It also includes a buzzer (11), the buzzer (11) is installed inside the housing I (4), and the sensor (10) is electrically connected to the buzzer (11).

8. The weightlessness self-locking device for a safety belt for aerial work according to claim 7, characterized in that: The front part of the buzzer (11) protrudes from the inside of the housing I (4).

9. A weightless self-locking device for a safety belt for aerial work according to claim 8, characterized in that: It also includes a soft rubber shoulder strap (12), the safety belt (1) is connected to the soft rubber shoulder strap (12), and the soft rubber shoulder strap (12) is used for decompression.

10. A weightless self-locking device for a safety belt for aerial work according to claim 9, characterized in that: The soft rubber shoulder strap (12) is connected to the safety belt (1) in a C shape.

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