Anti-falling hanging basket for high-altitude operation

Abstract

The utility model is applicable to the technical field of hanging baskets, and provides an anti-falling hanging basket for aloft work, which comprises a hanging basket, a locking device is mounted on the hanging basket, the locking device comprises a main shell, and a weightlessness sensing device and a brake unit are mounted in the main shell; the brake unit comprises an inflation cavity formed in the main shell, a clamping block cavity and an air channel communicating the inflation cavity with the clamping block cavity, a clamping plate and an air generating device are installed in the inflation cavity, a first spring is installed between the clamping plate and the inflation cavity, a clamping block is installed in the clamping block cavity, and the clamping block is connected with the clamping plate in a clamped mode; the gas generating device is electrically connected with the weightlessness sensing device and can inflate the inflation cavity so that clamping connection between the clamping block and the clamping plate can be removed. Therefore, the device can realize anti-falling and quick response of the hanging basket, the falling distance of the hanging basket is greatly shortened, and the safety of personnel is ensured.

Description

Technical Field

[0001] The utility model is applicable to the technical field of hanging baskets and provides an anti-falling hanging basket for high-altitude operations. Background Art

[0002] Aerial work platform is a kind of equipment used for high-altitude construction and maintenance on the exterior walls of buildings or elevated structures. It provides a safe and stable working platform, allowing workers to perform various tasks in high-altitude environments, such as cleaning, repairs, painting, etc., thereby improving construction efficiency and safety.

[0003] At present, the aerial work hanging baskets on the market have adopted a variety of design measures to prevent falling. These include safety guardrails and enclosure nets. Strong guardrails and enclosure nets are set around the hanging basket to prevent workers from accidentally falling. There are also some automatic emergency braking systems that can quickly stop the movement of the hanging basket in the event of an accident to protect the safety of workers.

[0004] However, the automatic emergency braking system currently in use has a long action time. Its principle is that the braking is triggered when the cable moves too fast inside the automatic emergency braking system. However, at this time, the falling of the basket has occurred for some time and the basket has fallen to a certain height. Even if emergency braking is performed at this time, the people on the basket will be injured due to the height of the fall. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a fall-proof hanging basket for aerial work, in order to solve the problems raised in the background technology, including a hanging basket, characterized in that a locking device is installed on the hanging basket, and the locking device includes a main shell, and a weightlessness sensor device and a braking unit are installed in the main shell.

[0006] The brake unit includes an inflation chamber, a block chamber and an air passage connecting the two, which are arranged inside the main shell. A splint and a gas generating device are installed inside the inflation chamber. A first spring is installed between the splint and the inflation chamber. A block that can move up and down in the block chamber is installed inside the block chamber, and the block is clamped with the splint. The gas generating device is electrically connected to the weightlessness sensing device, and the gas generating device can inflate the inflation chamber to release the clamping connection between the block and the splint.

[0007] Furthermore, a detection cavity is provided inside the locking device, and the weightlessness sensing device is installed in the detection cavity. The weightlessness sensing device includes a mass sensor, a sliding rod, a power supply and a controller; the controller is electrically connected to the mass sensor, the power supply and the gas generating device; a sliding sleeve is provided on the sliding rod, and the sliding sleeve is fixedly connected to a mass block placed on the mass sensor.

[0008] Furthermore, the card block cavity is provided with an air release channel connecting the card block cavity and the outside atmosphere.

[0009] Furthermore, a vent hole connecting the card block cavity and the outside atmosphere is provided inside the main shell.

[0010] Furthermore, a second spring is installed between the top of the block and the inner wall of the block cavity.

[0011] Furthermore, the brake units are symmetrically arranged in two groups in the main housing.

[0012] Furthermore, a plurality of guide wheels are installed inside the main shell.

[0013] Furthermore, one end of the clamping plate away from the first spring is an arc-shaped structure.

[0014] Furthermore, an inverted tooth is provided at one end of the clamping plate away from the first spring.

[0015] In summary, in actual use, the suspension cable is installed inside the locking device. When the suspension cable at the bottom of the vertical section breaks or the cable drum at the bottom of some models of aerial work hanging basket fails, the outgoing line is out of control, and the hanging basket falls, causing overall weightlessness. Inside the locking device, when the mass block loses weight, the force transmission between the mass sensor and the mass sensor is an inelastic mutation. The mass sensor transmits the mass mutation information to the controller, and the controller transmits a signal to the gas generator to make it work. The arc generator generates an arc to quickly detonate the micro-explosive. The heat generated by the explosion causes sodium azide to initiate a rapid thermal decomposition reaction, generating a large amount of nitrogen. The rapidly expanding nitrogen first impacts the bottom surface of the block through the airway, and the nitrogen in the closed inflation chamber will instantly lift the block to achieve the release of the block and the splint. At this time, since the nitrogen still has a strong pressure in the inflation chamber, the air pressure and the first spring jointly push the splint to quickly lock the suspension cable to achieve emergency braking.

[0016] Therefore, the device can prevent the hanging basket from falling through the locking device. Since the force between the mass block and the mass sensor is in a sudden state when the mass block loses weight, the mass sensor and the controller cooperate to make the gas generating device respond quickly, achieving rapid locking, which greatly shortens the falling distance of the hanging basket and ensures the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the hanging basket structure;

[0018] Figure 2 This is a schematic diagram of the internal structure of the braking device;

[0019] Figure 3 for Figure 2 A magnified view of the structure of part A;

[0020] Figure 4for Figure 2 A magnified view of the structure of part B;

[0021] In the figure: 01-basket; 02-cable; 03-locking device; 031-fixed rod; 1-brake unit; 10-main shell; 20-detection chamber; 21-mass block; 22-sleeve; 23-slide rod; 24-mass sensor; 30-inflating chamber; 31-first spring; 32-clamp; 321-inverted tooth; 322-groove; 33-gas generating device; 5-guide wheel; 50-block chamber; 51-block; 511-second spring; 52-airway; 53-vent; 54-deflation channel; 6-power supply; 7-controller. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] It should be noted that, in the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] Furthermore, the terms “first,” “second,” “third,” etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0025] At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] See also Figure 1-4The purpose of the utility model is to provide a fall-proof hanging basket for aerial work, including a hanging basket 01, a hanging cable 02 and a fixing rod 031 are installed on the top of the hanging basket 01, a locking device 03 is fixedly connected to the fixing rod 031, and the hanging cable 02 is inserted into the locking device 03.

[0028] The locking device 03 comprises a main housing 10, wherein a detection cavity 20, a vertically penetrating passage and brake units 1 arranged on both sides of the passage are arranged inside the main housing 10.

[0029] A weightlessness sensing device is installed inside the detection chamber 20, and the weightlessness sensing device includes a mass sensor 24, a slide bar 23, a power supply 6 and a controller 7 fixedly connected inside the detection chamber 20; the power supply 6 is electrically connected to the controller 7. A sliding sleeve 22 that can slide up and down is sleeved on the slide bar 23, and a mass block 21 is fixedly connected to the sliding sleeve 22. The mass block 21 is placed on the mass sensor 24, and the mass sensor 24 can detect the mass of the mass block 21 on its top in real time. The mass sensor 24 is electrically connected to the controller 7, and the pressure it receives is transmitted to the controller 7 in the form of an electrical signal. The controller 7 determines whether there is weightlessness.

[0030] The brake unit 1 includes an inflation chamber 30, a block chamber 50 and an air duct 52 therebetween, which are arranged inside the main shell 10. One end of a first spring 31 is fixedly connected to the inside of the inflation chamber 30, and the other end of the first spring 31 is fixedly connected to a clamp 32, which can slide in the inflation chamber 50. A clamp 51 is slidably connected to the inside of the clamp chamber 50. A groove 322 is provided on the top of the clamp 32, and a tooth matching the groove 322 is provided on the block 51. The tooth of the block 51 can be embedded in the groove 322 on the top of the clamp 32 to prevent the clamp 32 from moving away from the first spring 31. When the clamp 32 is engaged with the block 51, the first spring 31 is in a compressed state, and the air duct 52 is arranged below the block 51.

[0031] A gas generating device 33 is fixedly connected to the inside of the gas-filled cavity 30. The gas generating device 33 can instantly generate a large amount of gas to inflate the inside of the gas-filled cavity 30. Specifically, the gas generating device 33 includes an arc generator, a micro-explosive and sodium azide. The arc generator in the gas generating device 33 is electrically connected to the controller 7. The controller 7 can control the arc generator to generate an arc, and the arc quickly detonates the micro-explosive. The micro-explosive can be a fast-burning gunpowder or a micro-detonator. The heat generated by the small explosion causes the sodium azide to initiate a rapid thermal decomposition reaction. The reaction process is usually less than 30 microseconds. The reaction generates a large amount of nitrogen. The generated nitrogen can quickly expand and impact the card block 51 to move the card block 51 upward.

[0032] Preferably, the main housing 10 is provided with an air release channel 54, and the two ends of the air release channel 54 are connected to the block cavity 50 and the outside atmosphere respectively. That is, the block cavity 50 is provided with an air release channel 54 connected to the outside atmosphere; specifically, one end of the air release channel 54 connected to the block cavity 50 is arranged at the corresponding position of the block 51 when the block 51 is engaged with the clamping plate 32, and at this time, one side of the block 51 can block the air release channel 54, and when the block 51 is unengaged from the clamping plate 32, the air release channel 54 is in an open state, and the nitrogen generated by the rapid thermal decomposition of sodium azide can be discharged from the air release channel 54 after pushing the block 51.

[0033] Preferably, a vent hole 53 is provided inside the main housing 10, and the two ends of the vent hole 53 are connected to the card block cavity 50 and the outside atmosphere respectively. Specifically, the vent hole 53 is provided above the card block 51. The vent hole 53 prevents the card block 51 from forming a closed space with the card block cavity 50, thereby hindering the card block from moving upward.

[0034] Preferably, a second spring 511 is installed between the top of the block 51 and the inner wall of the block cavity 50. The second spring 511 can slightly prevent the block 51 from moving upward, thereby preventing the block 51 from being accidentally released due to vibration or shaking of the hanging basket.

[0035] Preferably, two groups of the brake units 1 are symmetrically arranged in the main housing 10 , and the two groups of brake units 1 can more effectively protect the hanging basket 01 from falling.

[0036] Preferably, a plurality of guide wheels 5 are installed inside the main shell 10, and the guide wheels 5 can limit the cables to ensure that the cables passing through the locking device 03 are in a vertical state relative to the device, thereby ensuring the effectiveness of the locking device 03 when it works.

[0037] Preferably, the side of the clamping plate 32 close to the suspension cable 02 is an arc-shaped structure. That is, the end of the clamping plate 32 away from the first spring 31 is an arc-shaped structure. The arc-shaped surface of the clamping plate 32 can more effectively lock the suspension cable 02. The side of the clamping plate 32 close to the suspension cable 02 is provided with a reverse tooth 321. That is, the end of the clamping plate 32 away from the first spring 31 is provided with a reverse tooth 321.

[0038] To sum up, in actual use, the suspension cable 02 is passed through the inside of the locking device 03. When the suspension cable 02 at the bottom of the vertical section breaks or the cable drum at the bottom of certain models of aerial work hanging basket 01 fails, the outgoing line is out of control. At this time, the hanging basket 01 falls and causes overall weightlessness. Inside the locking device 03, when the mass block 21 loses weight, the force transmission between it and the mass sensor 24 is an inelastic mutation. The mass sensor 24 transmits the mutation information of the mass to the controller 7. The controller 7 transmits a signal to the gas generating device 33 to make it operate. The arc generator generates an arc to quickly detonate the micro-explosive. The heat generated by the explosion causes the sodium azide to trigger a rapid thermal decomposition reaction, generating a large amount of nitrogen. The rapidly expanding nitrogen first impacts the bottom surface of the block 51 through the air channel 52. In the closed inflation chamber 30, the nitrogen will instantly lift the block 51, thereby releasing the block 51 and the splint 32. At this time, since the nitrogen still has a strong pressure in the inflation chamber 30, the air pressure and the first spring 31 jointly push the splint 32 to quickly lock the suspension cable 02, thereby achieving emergency braking.

[0039] Therefore, the device can prevent the hanging basket 01 from falling through the locking device 03. Since the force between the mass block 21 and the mass sensor 24 is in a sudden state when the mass block 21 loses weight, the mass sensor 24 cooperates with the controller 7 to make the gas generating device 33 respond quickly, thereby achieving rapid locking, greatly shortening the falling distance of the hanging basket 01 and ensuring the safety of personnel.

[0040] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fall prevention hanging basket for high-altitude work, comprising a hanging basket (01), characterized in that: The hanging basket (01) is provided with a locking device (03), the locking device (03) comprising a main housing (10), and a weightlessness sensor device and a braking unit (1) are installed in the main housing (10); The brake unit (1) comprises an air-filling chamber (30), a block chamber (50) and an air passage (52) connecting the two chambers, the air-filling chamber (30) being provided with a clamping plate (32) and a gas generating device (33), a first spring (31) being provided between the clamping plate (32) and the air-filling chamber (30), a clamping block (51) being provided in the block chamber (50) and being movable up and down in the clamping block chamber (50), the clamping block (51) being clamped with the clamping plate (32); the gas generating device (33) being electrically connected to a weightlessness sensing device, the gas generating device (33) being able to inflate the air-filling chamber (30) so as to release the clamping block (51) from being clamped with the clamping plate (32); A detection chamber (20) is provided inside the locking device (03), and the weightlessness sensing device is installed in the detection chamber (20). The weightlessness sensing device comprises a mass sensor (24), a sliding rod (23), a power supply (6) and a controller (7); the controller (7) is electrically connected to the mass sensor (24), the power supply (6) and the gas generating device (33); a sliding sleeve (22) is sleeved on the sliding rod (23), and the sliding sleeve (22) is fixedly connected to a mass block (21) placed on the mass sensor (24).

2. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: The card block cavity (50) is provided with an air release channel (54) connecting the card block cavity (50) and the outside atmosphere.

3. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: The main housing (10) is provided with a vent hole (53) inside for connecting the card block cavity (50) and the outside atmosphere.

4. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: A second spring (511) is installed between the top of the block (51) and the inner wall of the block cavity (50).

5. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: The brake units (1) are symmetrically arranged in two groups in the main housing (10).

6. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: A plurality of guide wheels (5) are installed inside the main housing (10).

7. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: One end of the clamping plate (32) away from the first spring (31) is an arc-shaped structure.

8. The anti-fall hanging basket for aerial work according to claim 1, characterized in that: An end of the clamping plate (32) away from the first spring (31) is provided with an inverted tooth (321).

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