A kind of aerial work suspension device

Abstract

The invention discloses a high-altitude work suspension device, including an ascender and a pulley assembly, the ascender including a shell, a draw rope lock, a bracket, a first rotating wheel and a second rotating wheel, one end of the shell is bent to form a receiving groove, a cable is arranged in the receiving groove, one end of the draw rope lock is hinged with the shell, and the other end can contact the cable, the draw rope lock is hinged with the shell and provided with a torsion spring at one end, one end of the torsion spring is fixedly connected with the draw rope lock, and the other end is fixedly connected with the shell, one end of the bracket is hinged with the shell, and the other end is rotatably connected with the first rotating wheel, a synchronous lock is connected between the bracket and the draw rope lock, a first draw rope is wound around the second rotating wheel, and the first rotating wheel and the second rotating wheel are coaxially arranged; the pulley assembly is arranged on the ascender. The invention can transfer the force point from the back of the operator to the chest, reduce the compression of the safety belt on the leg blood vessels, prevent suspension trauma, and wait for rescue in time.

Description

Technical Field

[0001] The invention relates to the technical field of suspension devices, and in particular to a suspension device for aerial work. Background Art

[0002] Workers need to wear safety belts when working at heights, and the general hanging points of safety belts are on the back, which means that once workers fall from a height, their faces will be facing downwards. Due to the effect of the safety belt, workers are suspended in mid-air. Because the leg muscles are restricted, the blood returning to the heart will be reduced. If they are suspended and not rescued in time, casualties may occur. Even if they are not injured, they may become dizzy within three minutes of being suspended in mid-air, and may lose consciousness within five minutes, resulting in suspension trauma, which is very dangerous. Therefore, it is necessary to improve the existing suspension device for high-altitude work to prevent workers from suffering from suspension trauma after falling, so that workers can wait for rescue safely. Summary of the invention

[0003] The purpose of the present invention is to provide a high-altitude work suspension device in view of the above-mentioned deficiencies in the prior art.

[0004] To solve the above problems, the technical solution adopted by the present invention is:

[0005] A high-altitude work suspension device includes an ascender and a pulley assembly, the ascender includes an outer shell, a rope lock, a bracket, a first rotating wheel and a second rotating wheel, one end of the outer shell is bent to form a receiving groove, a cable is provided in the receiving groove, one end of the rope lock is hinged to the outer shell, and the other end is in contact with the cable, the rope lock is hinged to the outer shell and provided with a torsion spring, one end of the torsion spring is fixedly connected to the rope lock, and the other end is fixedly connected to the outer shell, one end of the bracket is hinged to the outer shell, and the other end is rotatably connected to the first rotating wheel, the first rotating wheel is located on the inner side of the outer shell, a synchronous lock is connected between the bracket and the rope lock, the second rotating wheel is located on the outer side of the outer shell, a first rope is wound around the second rotating wheel, and the first rotating wheel and the second rotating wheel are coaxially arranged; the pulley assembly is arranged on the ascender.

[0006] Furthermore, a plurality of ratchets are provided on a surface of the pull rope lock that contacts the cable, a wheel surface of the first rotating wheel, and a wheel surface of the second rotating wheel.

[0007] Furthermore, a protective cover is provided on the outer side of the second rotating wheel, and the protective cover is hinged on the outer shell.

[0008] Furthermore, a first slide groove is provided on the shell, and a rotating shaft connecting the first rotating wheel and the second rotating wheel is slidably arranged in the first slide groove.

[0009] Furthermore, the pulley assembly includes an upper pulley seat, a lower pulley seat and a second pull rope, the upper pulley seat is fixedly connected to the outer shell by a hanging ring, the upper pulley seat is rotatably provided with a first fixed pulley and a second fixed pulley, the lower pulley seat is rotatably provided with a first movable pulley and a second movable pulley, one end of the second pull rope is fixedly connected to the upper pulley seat, and the other end is sequentially wrapped around the first movable pulley, the first fixed pulley, the second movable pulley and the second fixed pulley and then hangs freely.

[0010] Furthermore, one end of the synchronous lock is hinged to the pull rope lock, and the other end is rotatably connected to the rotating shaft.

[0011] Furthermore, a locking column is provided on the synchronous lock, and a second slide groove is provided on the outer shell, and the locking column is slidably set in the second slide groove; a pressing device is also provided on the outer shell, and the pressing device includes a button and a pressing block, a spring paddle is provided between the button and the pressing block, and the pressing block is located on the outer side of the outer shell.

[0012] The beneficial effect of adopting the above technical solution is that when the operator falls, the operator will be suspended on the cable due to the effect of the safety belt. Since the hanging point is on the back, the blood vessels in the legs will be compressed and cause suspension trauma. In the present invention, when the operator falls, the operator hangs the ascender on the cable. Since the cable is located on the back of the operator, in order to solve the inconvenience of hanging, a synchronous lock is provided on the ascender. After the synchronous lock is turned, the rope lock and the bracket are rotated downward until the pressing device locks and fixes the synchronous lock, exposing the gap of the accommodating groove, and the cable is inserted into the accommodating groove along the gap. The pressing device is pressed. After the device is synchronously locked, due to the rebound force of the torsion spring, the rope lock and the bracket rotate upward to lock the cable to prevent the ascender from falling; then the first pull rope is pulled to rotate the second wheel, and the first wheel is driven to rotate synchronously. The rotation of the first wheel on the cable can drive the ascender to rise. When the ascender rises to a certain height, the lower pulley seat is hung in front of the operator's chest, and the second pull rope is pulled to make the lower pulley seat rise. At the same time, the operator can be pulled to a vertical or reclining state, so that the force point is transferred to the chest, which can effectively relieve the pressure on the leg blood vessels, prevent suspension trauma, and enable the operator to wait for safe rescue in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 is a three-dimensional schematic diagram of the ascender of the present invention;

[0015] Figure 3 is a three-dimensional schematic diagram of the ascender of the present invention from another angle;

[0016] Figure 4 is a three-dimensional schematic diagram of the housing of the present invention;

[0017] Figure 5 is a three-dimensional schematic diagram of a pulley assembly of the present invention;

[0018] Figure 6 It is a three-dimensional schematic diagram of the draw cord lock of the present invention.

[0019] In the figure: 1 is the ascender, 2 is the pulley assembly, 3 is the shell, 4 is the draw rope lock, 5 is the bracket, 6 is the first rotating wheel, 7 is the second rotating wheel, 8 is the accommodating groove, 9 is the cable, 10 is the synchronous lock, 11 is the first draw rope, 12 is the ratchet, 13 is the protective cover, 14 is the first slide groove, 15 is the upper pulley seat, 16 is the lower pulley seat, 17 is the second draw rope, 18 is the locking column, 19 is the second slide groove, 20 is the button, and 21 is the pressing block. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, 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 an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-6As shown, a high-altitude work suspension device includes an ascender 1 and a pulley assembly 2, the ascender 1 includes a shell 3, a rope lock 4, a bracket 5, a first rotating wheel 6 and a second rotating wheel 7, one end of the shell 3 is bent to form a receiving groove 8, a cable 9 is arranged in the receiving groove 8, one end of the rope lock 4 is hinged to the shell 3, and the other end can contact the cable 9, the rope lock 4 is hinged to the shell 3. A torsion spring (not drawn in the figure) is provided at the end of the rope lock 4 hinged to the shell 3, one end of the torsion spring is fixedly connected to the rope lock 4, and the other end is fixedly connected to the shell 3, one end of the bracket 5 is hinged to the shell 3, and the other end is rotatably connected to the first rotating wheel 6, the first rotating wheel 6 is located on the inner side of the shell 3, a synchronous lock 10 is connected between the bracket 5 and the rope lock 4, the second rotating wheel 7 is located on the outer side of the shell 3, a first rope 11 is wound around the second rotating wheel 7, and the first rotating wheel 6 and the second rotating wheel 7 are coaxially arranged; the pulley assembly 2 is arranged on the ascender.

[0024] Furthermore, a plurality of ratchets 12 are provided on the side of the pull rope lock 4 that contacts the cable 9, the wheel surface of the first rotating wheel 6, and the wheel surface of the second rotating wheel 7. The ratchets 12 can prevent the cable 9 from slipping and causing danger.

[0025] Furthermore, a protective cover 13 is provided on the outer side of the second rotating wheel 7 , and the protective cover 13 is hingedly provided on the outer shell 3 . The protective cover 13 can prevent the first pull rope 11 from being separated from the second rotating wheel 7 .

[0026] Furthermore, a first slide groove 14 is provided on the housing 3 , and a rotating shaft connecting the first rotating wheel 6 and the second rotating wheel 7 is slidably disposed in the first slide groove 14 .

[0027] Furthermore, the pulley assembly 2 includes an upper pulley seat 15, a lower pulley seat 16 and a second pull rope 17. The upper pulley seat 15 is fixedly connected to the outer shell 3 through a hanging ring. The upper pulley seat 15 is rotatably provided with a first fixed pulley and a second fixed pulley. The lower pulley seat 16 is rotatably provided with a first movable pulley and a second movable pulley. One end of the second pull rope 17 is fixedly connected to the upper pulley seat 15, and the other end is sequentially wrapped around the first movable pulley, the first fixed pulley, the second movable pulley and the second fixed pulley and then hangs freely.

[0028] Furthermore, one end of the synchronous lock 10 is hinged to the draw cord lock 4, and the other end is rotatably connected to the rotating shaft.

[0029] Furthermore, a locking column 18 is provided on the synchronous lock 10, and a second slide groove 19 is provided on the shell 3, and the locking column 18 can be slidably arranged in the second slide groove 19; a pressing device is also provided on the shell 3, and the pressing device includes a button 20 and a clamping block 21, and a spring paddle (not shown in the figure) is provided between the button 20 and the clamping block 21, and the clamping block 21 is located on the outside of the shell 3.

[0030] Working principle: When an operator falls from a high altitude, the operator will be suspended on the cable 9. At this time, since the hanging point of the safety belt is generally located on the back, the operator will be suspended in the air with his face down. The safety belt will compress the blood vessels of the legs, which may easily cause suspension trauma. At this time, the operator will take out the ascender 2, turn the synchronous lock 10 to make the locking column 18 slide in the second slide groove 19, and press the button 20 downward at the same time. Due to the action of the spring paddle, the clamping block 21 moves away from one side of the shell 3, and the locking column 18 is moved to the clamping block 21. The button 20 is released, and the clamping block 21 clamps the locking column 18. The synchronous lock 10 is locked and fixed. While turning the synchronous lock 10, the rope lock 4 and the bracket 5 are moved downward to expose the opening on one side of the accommodating groove 8. At this time, the operator hangs the ascender 2 On the cable 9, the cable 8 enters the accommodating groove 8 through the opening on one side of the accommodating groove 8. After the cable 9 enters the accommodating groove 8, the button 20 is pressed, and the clamping block 21 is separated from the locking column 18. Due to the action of the torsion spring, the bracket 5 and the drawstring lock 4 move upward until the drawstring lock 4 and the first roller 6 contact the cable 9. Then, the first pull rope 11 is pulled to rotate the second rotating wheel 7 and drive the first rotating wheel 6 to rotate. The ascender 1 rises along the cable 9. When the ascender 1 rises to a certain height, the lower pulley seat 16 is hung on the chest of the operator. Then, the second pull rope 17 is pulled to raise the lower pulley seat 16 and lift the operator at the same time, so that the stress point of the operator is transferred to the chest, reducing the pressure of the safety belt on the operator's leg blood vessels, preventing suspension trauma, and allowing the operator to wait for rescue safely.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A suspension device for aerial work, characterized in that: The invention comprises an ascender (1) and a pulley assembly (2), wherein the ascender (1) comprises a housing (3), a drawstring lock (4), a bracket (5), a first rotating wheel (6) and a second rotating wheel (7), one end of the housing (3) is bent to form a receiving groove (8), a cable (9) is arranged in the receiving groove (8), one end of the drawstring lock (4) is hinged to the housing (3), and the other end is in contact with the cable (9), one end of the drawstring lock (4) hinged to the housing (3) is provided with a torsion spring, one end of the torsion spring is fixedly connected to the drawstring lock (4), The other end is fixedly connected to the outer shell (3); one end of the bracket (5) is hinged to the outer shell (3), and the other end is rotatably connected to the first rotating wheel (6); the first rotating wheel (6) is located on the inner side of the outer shell (3); a synchronous lock (10) is connected between the bracket (5) and the pull rope lock (4); the second rotating wheel (7) is located on the outer side of the outer shell (3); a first pull rope (11) is wound around the second rotating wheel (7); the first rotating wheel (6) and the second rotating wheel (7) are coaxially arranged; the pulley assembly (2) is arranged on the ascender; The pulley assembly (2) comprises an upper pulley seat (15), a lower pulley seat (16) and a second pull rope (17); the upper pulley seat (15) is fixedly connected to the housing (3) via a hanging ring; the upper pulley seat (15) is rotatably provided with a first fixed pulley and a second fixed pulley; the lower pulley seat (16) is rotatably provided with a first movable pulley and a second movable pulley; one end of the second pull rope (17) is fixedly connected to the upper pulley seat (15), and the other end is sequentially wound around the first movable pulley, the first fixed pulley, the second movable pulley and the second fixed pulley and then hangs freely.

2. The aerial work suspension device according to claim 1, characterized in that: A plurality of ratchet teeth (12) are provided on the side of the draw cord lock (4) that contacts the cable (9), the wheel surface of the first rotating wheel (6), and the wheel surface of the second rotating wheel (7).

3. The aerial work suspension device according to claim 1, characterized in that: A protective cover (13) is provided on the outer side of the second rotating wheel (7), and the protective cover (13) is hingedly arranged on the outer shell (3).

4. The aerial work suspension device according to claim 1, characterized in that: The housing (3) is provided with a first sliding groove (14), and a rotating shaft connecting the first rotating wheel (6) and the second rotating wheel (7) is slidably arranged in the first sliding groove (14).

5. The aerial work suspension device according to claim 4, characterized in that: One end of the synchronous lock (10) is hinged to the drawstring lock (4), and the other end is rotatably connected to the rotating shaft.

6. The aerial work suspension device according to claim 5, characterized in that: The synchronous lock (10) is provided with a locking column (18), and the housing (3) is provided with a second sliding groove (19), and the locking column (18) is slidably arranged in the second sliding groove (19); the housing (3) is also provided with a pressing device, and the pressing device includes a button (20) and a pressing block (21), and a spring paddle is provided between the button (20) and the pressing block (21), and the pressing block (21) is located on the outside of the housing (3).

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