Hanging basket safety rope self-locking device

Abstract

The utility model discloses a hanging basket safety rope self-locking device. A shell of the hanging basket safety rope self-locking device is provided with an electric lifting mechanism, an anti-falling mechanism and a rope penetrating channel for a safety rope to penetrate through. The electric lifting mechanism comprises friction wheels, a motor, a lifting transmission assembly and an operation button, when the safety rope penetrates through the rope penetrating channel, the friction wheels on the two sides can drive the shell to move along the safety rope in the working state of the motor, and the shell can be kept on the safety rope through friction force in the stopping and locking state of the motor; the anti-falling mechanism comprises a locking piece, a locking transmission assembly and a pull ring, and when the safety rope penetrates through the rope penetrating channel and the pull ring is connected with the safety belt, the locking piece is only in contact with the safety rope in the state that the safety belt does not pull the pull ring downwards and is locked on the safety rope in the state that the safety belt pulls the pull ring downwards. On the premise that the anti-falling function is achieved, the self-locking device can move along the safety rope in the lifting process of the hanging basket, one-hand operation is not needed, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to safety operations during high-altitude construction, specifically to a self-locking device for a suspended platform safety rope. Background Technology

[0002] When performing high-altitude operations such as exterior wall construction, it is generally necessary to set up a suspended platform that can be raised and lowered, and a fixed safety rope. The worker is inside the suspended platform and wears a safety belt, which is hooked to the self-locking device on the safety rope. Currently, the self-locking devices are all normally closed. During the raising and lowering of the suspended platform, in order to ensure that the self-locking device is always in a suitable position above the safety belt, the worker needs to release the safety lock of the self-locking device and hold the self-locking device to carry it up and down the safety rope. This method requires the worker to keep one hand on the self-locking device at all times during the raising and lowering of the suspended platform, which is very inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a self-locking device for the safety rope of a suspended platform. While providing a fall prevention function, the self-locking device can move along the safety rope during the lifting and lowering of the suspended platform without requiring one hand to operate, making the operation convenient.

[0004] The technical solution adopted in this utility model is:

[0005] A self-locking device for a suspended platform safety rope includes an electric lifting mechanism, a fall prevention mechanism, and a rope passage for the safety rope. The electric lifting mechanism comprises friction wheels, a motor, a lifting transmission assembly, and an operating button. The friction wheels are rotatably mounted on both sides of the rope passage. The motor drives the friction wheels on both sides to rotate synchronously in opposite directions via the lifting transmission assembly. The motor has a stop locking function. The operating button is electrically connected to the motor and is used to start, stop, rotate forward, and rotate backward. When the safety rope passes through the rope passage, the friction wheels on both sides can move the housing along the safety rope when the motor is running, and can keep the housing on the safety rope by friction when the motor is stopped and locked. The fall prevention mechanism includes a locking element, a locking transmission assembly, and a pull ring. The locking element is located on both sides of the rope passage. The input and output ends of the locking transmission assembly are connected to the pull ring and the locking element, respectively. The pull ring is used to connect to the safety belt. When the safety rope passes through the rope passage and the pull ring is connected to the safety belt, the locking element only contacts the safety rope when the safety belt is not pulling down the pull ring, and locks onto the safety rope when the safety belt pulls down the pull ring.

[0006] Preferably, the operation buttons include a start / stop button for starting and stopping the motor, a forward button for operating the motor to rotate forward, and a reverse button for operating the motor to rotate backward. The start / stop button, forward button, and reverse button are all equipped with labels and indicator lights.

[0007] Preferably, the outer circumference of the friction wheel is provided with a groove for inserting a safety rope, and the groove is provided with friction patterns to increase friction.

[0008] Preferably, the lifting transmission assembly includes a motor gear and a transmission gear. The motor gear is driven by the output end of a motor, and the transmission gear is coaxially arranged with the friction wheels on both sides. The motor gear is connected to the transmission gear on one side in the opposite direction through a transmission chain, and the motor gear is connected to the transmission gear on the other side in the same direction through a transmission chain.

[0009] Preferably, the lifting transmission assembly includes transmission gears, which are coaxially arranged with the friction wheels on both sides. The shaft of the transmission gear on one side is driven by the output end of the motor, and the transmission gears on both sides are connected in opposite directions by a transmission chain.

[0010] Preferably, the motor is powered by a battery mounted on the housing.

[0011] Preferably, the motor is powered by a solar panel mounted on the housing.

[0012] Preferably, the locking component includes movable locking blocks on both sides of the rope passage. The movable locking blocks facing the rope passage have grooves for engaging the safety rope. The movable locking blocks on the housing away from the rope passage have limiting structures. When the safety rope passes through the rope passage, the movable locking blocks on both sides are limited by their respective limiting structures and remain in contact with both sides of the safety rope. The locking transmission assembly includes a swing arm, a pressure rod one, and a pressure rod two. One end of the swing arm is hinged to the housing and can swing up and down, while the other end is inclined upward and fixed to a pull ring. The upper end of the pressure rod one is hinged to the swing arm, and the lower end is inclined and hinged to a movable locking block on one side. The upper end of the pressure rod two is hinged to the swing arm, and the lower end is inclined and hinged to a movable locking block on the other side. When the safety rope passes through the rope passage and the safety belt pulls down the pull ring, the swing arm drives the pressure rod one and the pressure rod two to tilt and press down on the movable locking blocks on their respective sides, thereby locking the movable locking blocks on both sides onto the safety rope.

[0013] Preferably, the locking component includes a fixing block on one side of the rope passage and a cam on the other side of the rope passage. The fixing block has a groove on the side facing the rope passage for engaging the safety rope. The cam is rotatably hinged to the housing, and a torsion spring is provided at the hinge. The torsion spring provides an upward rotational force to the cam. An upper limit structure and a lower limit structure are respectively provided above and below the cam on the housing. When the safety rope passes through the rope passage, the fixing block and the cam maintain contact with both sides of the safety rope, and the cam is limited by the upper limit structure. The locking transmission assembly includes a connecting rod integral with or connected to the cam. The end of the connecting rod is inclined upward and connected to a pull ring. When the safety rope passes through the rope passage and the safety belt pulls down the pull ring, the connecting rod drives the cam to rotate downward to press the safety rope, and the cam is limited by the lower limit structure.

[0014] Preferably, the locking component includes a fixing block on one side of the rope passage and a gripping plate on the other side of the rope passage. The fixing block has a groove on the side facing the rope passage for engaging the safety rope, and the gripping plate has gripping teeth on the side facing the rope passage for clamping the safety rope. The locking transmission assembly includes a rocker arm and a spring that are hinged to the housing and can swing up and down. The rocker arm is inclined and its lower end is connected to the gripping plate, and its upper end is connected to a pull ring. The spring acts on the rocker arm. When the safety rope passes through the rope passage, the fixing block remains in contact with the safety rope, and the spring causes the gripping teeth to contact the safety rope but not to grip it tightly. When the safety rope passes through the rope passage and the safety belt pulls down the pull ring, the rocker arm drives the gripping teeth to clamp and lock onto the safety rope.

[0015] The beneficial effects of this utility model are:

[0016] During operation, workers wear safety belts, thread the safety rope through the rope channel, and adjust the self-locking device to a suitable height. The safety belt is then connected to the pull ring to ensure the self-locking device is always functional and does not restrict movement due to improper positioning. Under normal conditions, the self-locking device remains on the safety rope due to the friction of the friction wheel. When a worker falls, the safety belt pulls down the pull ring, locking the locking mechanism onto the safety rope to prevent a fall. When the suspended platform is raised or lowered, workers can control the motor via operation buttons, causing the friction wheel to move the housing along the safety rope. Simply operating the corresponding buttons before and after movement will raise or lower the self-locking device accordingly. Therefore, one hand is not needed for operation during platform raising or lowering, making the work convenient. Furthermore, since the platform's raising and lowering speed is generally set to a slow speed, only the appropriate motor output speed needs to be set to ensure synchronization between the platform and the self-locking device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the self-locking device for the safety rope of the suspended basket in Embodiment 1 of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the self-locking device for the safety rope of the suspended basket in Embodiment 2 of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the self-locking device for the safety rope of the suspended basket in Embodiment 3 of this utility model.

[0020] In the diagram: 1-Shell; 2-Solar panel; 3-Safety rope; 4-Motor gear; 5-Motor; 6-Friction wheel; 7-Transmission gear; 8-Pull ring; 9-Safety belt; 10-Start / Stop button; 11-Forward button; 12-Reverse button; 13-Swing arm; 14-Pressure rod one; 15-Pressure rod two; 16-Limiting structure; 17-Moving latch; 18-Fixed latch; 19-Cam; 20-Torsion spring; 21-Upper limit structure; 22-Lower limit structure; 23-Connecting rod; 24-Battery; 25-Hopper; 26-Spring; 27-Grab plate; 28-Grab tooth. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "pressure rod one," "pressure rod two," etc., are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0027] This application discloses a self-locking device for the safety rope of a suspended platform, such as... Figures 1 to 3 As shown, its housing 1 is equipped with an electric lifting mechanism, a fall protection mechanism, and a rope passage for the safety rope 3 to pass through; wherein:

[0028] The electric lifting mechanism includes friction wheels 6, motor 5, lifting transmission assembly and operation buttons. Friction wheels 6 are rotatably mounted on both sides of the rope passage. Motor 5 is used to drive the friction wheels 6 on both sides to rotate synchronously in opposite directions through the lifting transmission assembly. Motor 5 has a stop locking function. The operation buttons are electrically connected to motor 5 and are used to operate the start, stop, forward and reverse rotation of motor 5. When safety rope 3 passes through the rope passage, friction wheels 6 on both sides can drive housing 1 to move along safety rope 3 when motor 5 is working. When motor 5 is stopped and locked, friction can be used to keep housing 1 on safety rope 3.

[0029] The fall arrestor includes a locking element, a locking transmission assembly, and a pull ring 8. The locking element is located on both sides of the rope passage. The input and output ends of the locking transmission assembly are connected to the pull ring 8 and the locking element, respectively. The pull ring 8 is used to connect to the safety belt 9. When the safety rope 3 passes through the rope passage and the pull ring 8 is connected to the safety belt 9, the locking element only keeps in contact with the safety rope 3 when the safety belt 9 does not pull down the pull ring 8, and locks onto the safety rope 3 when the safety belt 9 pulls down the pull ring 8.

[0030] During work:

[0031] The operator wears a safety belt 9, passes the safety rope 3 through the rope channel, and adjusts the self-locking device to a suitable height. The safety belt 9 is then connected to the pull ring 8 to ensure that the self-locking device can provide protection at all times and will not restrict personnel movement due to improper positioning. Under normal conditions, the self-locking device remains on the safety rope 3 due to the friction of the friction wheel 6. When a worker falls, the safety belt 9 will pull down the pull ring 8, thereby locking the locking device onto the safety rope 3 to prevent falls. When the suspended platform is raised or lowered, the operator can control the motor 5 through the operating button, causing the friction wheel 6 to move the housing 1 along the safety rope 3. The self-locking device can be raised or lowered accordingly by operating the corresponding operating button before and after the movement. Therefore, it is not necessary to use one hand to operate during the raising or lowering of the suspended platform, making the operation convenient. Furthermore, since the raising and lowering speed of the suspended platform is generally set to a slow speed, it is only necessary to set the corresponding output speed of the motor 5 to ensure that the suspended platform and the self-locking device are synchronized.

[0032] For ease of operation and feedback, the operation buttons include a start / stop button 10 for starting and stopping the motor 5, a forward rotation button 11 for operating the motor 5 to rotate forward, and a reverse rotation button 12 for operating the motor 5 to rotate in reverse. The start / stop button 10, forward rotation button 11, and reverse rotation button 12 are all equipped with labels and indicator lights.

[0033] To increase friction, the outer circumference of the friction wheel 6 is provided with a groove for inserting the safety rope 3, and the groove is provided with friction patterns to increase friction.

[0034] There are several options for electric lifting mechanisms and fall protection mechanisms. The following are the preferred options.

[0035] Example 1

[0036] like Figure 1 As shown, in this embodiment: the lifting transmission assembly includes a motor gear 4 and a transmission gear 7. The motor gear 4 is driven by the output end of the motor 5. The transmission gear 7 is coaxially arranged with the friction wheels 6 on both sides. The motor gear 4 is connected to the transmission gear 7 on one side in the opposite direction through a transmission chain. The motor gear 4 is connected to the transmission gear 7 on the other side in the same direction through a transmission chain.

[0037] like Figure 1 As shown, in this embodiment, the motor 5 is powered by the solar panel 2 mounted on the housing 1.

[0038] like Figure 1As shown, in this embodiment: the locking component includes movable locking blocks 17 disposed on both sides of the rope passage. The movable locking blocks 17 facing the rope passage have grooves for engaging the safety rope 3. Limiting structures 16 are provided on the side of the movable locking blocks 17 on the housing 1 away from the rope passage. When the safety rope 3 passes through the rope passage, the movable locking blocks 17 on both sides are limited by their respective limiting structures 16 and remain in contact with both sides of the safety rope 3. The locking transmission assembly includes a swing arm 13, a pressure rod one 14, and a pressure rod two 15. One end of the swing arm 13 can be extended upwards... The lower end of the lever 14 is hinged to the housing 1, and the other end is inclined upward and fixed to the pull ring 8. The upper end of the lever 14 is hinged to the swing arm 13, and the lower end is inclined and hinged to the movable locking block 17 on one side. The upper end of the lever 15 is hinged to the swing arm 13, and the lower end is inclined and hinged to the movable locking block 17 on the other side. When the safety rope 3 passes through the rope passage and the safety belt 9 pulls down the pull ring 8, the swing arm 13 drives the lever 14 and the lever 15 to tilt and press down the movable locking block 17 on the side where they are located, so that the movable locking blocks 17 on both sides are locked onto the safety rope 3.

[0039] Example 2

[0040] like Figure 2 As shown, in this embodiment: the lifting transmission assembly includes a motor gear 4 and a transmission gear 7. The motor gear 4 is driven by the output end of the motor 5. The transmission gear 7 is coaxially arranged with the friction wheels 6 on both sides. The motor gear 4 is connected to the transmission gear 7 on one side in the opposite direction through a transmission chain. The motor gear 4 is connected to the transmission gear 7 on the other side in the same direction through a transmission chain.

[0041] like Figure 2 As shown, in this embodiment, the motor 5 is powered by the solar panel 2 mounted on the housing 1.

[0042] like Figure 2 As shown, in this embodiment: the locking component includes a fixing block 18 on one side of the rope passage and a cam 19 on the other side of the rope passage. The fixing block 18 has a groove on the side facing the rope passage for cooperating with the safety rope 3. The cam 19 is rotatably hinged to the housing 1 and a torsion spring 20 is provided at the hinge. The torsion spring 20 provides an upward rotational force to the cam 19. An upper limit structure 21 and a lower limit structure 22 are respectively provided above and below the cam 19 on the housing 1. When the safety rope 3 passes through the rope passage, the fixing block 18 and the cam 19 keep in contact with both sides of the safety rope 3, and the cam 19 is limited by the upper limit structure 21. The locking transmission component includes a connecting rod 23 that is integral with or connected to the cam 19. The end of the connecting rod 23 is inclined upward and connected to the pull ring 8. When the safety rope 3 passes through the rope passage and the safety belt 9 pulls down the pull ring 8, the connecting rod 23 drives the cam 19 to rotate downward to press the safety rope 3, and the cam 19 is limited by the lower limit structure 22.

[0043] Example 3

[0044] like Figure 3 As shown, in this embodiment, the lifting transmission assembly includes a transmission gear 7, which is coaxially arranged with the friction wheels 6 on both sides. The shaft of the transmission gear 7 on one side is driven by the output end of the motor 5, and the transmission gears 7 on both sides are connected in opposite directions by a transmission chain.

[0045] like Figure 3 As shown, in this embodiment, the motor 5 is powered by the battery 24 mounted on the housing 1.

[0046] like Figure 3 As shown, in this embodiment: the locking component includes a fixing block 18 on one side of the rope passage and a gripping plate 27 on the other side of the rope passage. The fixing block 18 has a groove on the side facing the rope passage for engaging the safety rope 3, and the gripping plate 27 has gripping teeth 28 on the side facing the rope passage for clamping the safety rope 3. The locking transmission assembly includes a rocker plate 25 and a spring 26 that are hinged to the housing 1 and can swing up and down. The rocker plate 25 is inclined and its lower end is connected to the gripping plate 27, and its upper end is connected to the pull ring 8. The spring 26 acts on the rocker plate 25. When the safety rope 3 passes through the rope passage, the fixing block 18 keeps in contact with one side of the safety rope 3, and the spring 26 makes the gripping teeth 28 contact the safety rope 3 but not grip it. When the safety rope 3 passes through the rope passage and the safety belt 9 pulls down the pull ring 8, the rocker plate 25 drives the gripping teeth 28 to grip and lock it on the safety rope.

[0047] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A self-locking device for a suspended platform safety rope, characterized in that: The housing is equipped with an electric lifting mechanism, a fall protection mechanism, and a rope passage for the safety rope. The electric lifting mechanism includes friction wheels, a motor, a lifting transmission assembly, and an operation button. The friction wheels are rotatably mounted on both sides of the rope passage. The motor drives the friction wheels on both sides to rotate synchronously in opposite directions through the lifting transmission assembly. The motor has a stop lock function. The operation button is electrically connected to the motor and is used to start, stop, rotate forward, and rotate backward. When the safety rope passes through the rope passage, the friction wheels on both sides can drive the housing to move along the safety rope when the motor is working, and can use friction to keep the housing on the safety rope when the motor is stopped and locked. The fall protection mechanism includes a locking element, a locking transmission assembly, and a pull ring. The locking element is located on both sides of the rope passage. The input and output ends of the locking transmission assembly are connected to the pull ring and the locking element, respectively. The pull ring is used to connect to the safety belt. When the safety rope passes through the rope passage and the pull ring is connected to the safety belt, the locking element only keeps in contact with the safety rope when the safety belt is not pulling down the pull ring, and locks onto the safety rope when the safety belt pulls down the pull ring.

2. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The operation buttons include a start / stop button for starting and stopping the motor, a forward button for operating the motor to rotate forward, and a reverse button for operating the motor to rotate backward. The start / stop button, forward button, and reverse button are all equipped with labels and indicator lights.

3. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The outer circumference of the friction wheel is provided with a groove for inserting the safety rope, and the groove is provided with friction texture to increase friction.

4. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The lifting transmission assembly includes a motor gear and a transmission gear. The motor gear is driven by the output end of the motor. The transmission gear is coaxially set with the friction wheels on both sides. The motor gear is connected to the transmission gear on one side in the opposite direction through a transmission chain, and the motor gear is connected to the transmission gear on the other side in the same direction through a transmission chain.

5. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The lifting transmission assembly includes transmission gears, which are coaxially mounted with the friction wheels on both sides. The shaft containing the transmission gear on one side is driven by the output end of the motor, and the transmission gears on both sides are connected in opposite directions by a transmission chain.

6. The self-locking device for the safety rope of the suspended platform as described in claim 1, 4, or 5, characterized in that: The motor is powered by a battery mounted on the housing.

7. The self-locking device for the safety rope of the suspended platform as described in claim 1, 4, or 5, characterized in that: The motor is powered by solar panels mounted on the casing.

8. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The locking mechanism includes movable locking blocks on both sides of the rope passage. The movable locking blocks facing the rope passage have grooves for engaging the safety rope. The movable locking blocks on the housing away from the rope passage have limiting structures. When the safety rope passes through the rope passage, the movable locking blocks on both sides are limited by their respective limiting structures and remain in contact with both sides of the safety rope. The locking transmission assembly includes a swing arm, a pressure rod one, and a pressure rod two. One end of the swing arm is hinged to the housing and can swing up and down, while the other end is inclined upward and fixed to a pull ring. The upper end of pressure rod one is hinged to the swing arm, and the lower end is inclined and hinged to a movable locking block on one side. The upper end of pressure rod two is hinged to the swing arm, and the lower end is inclined and hinged to a movable locking block on the other side. When the safety rope passes through the rope passage and the safety belt pulls down the pull ring, the swing arm drives pressure rod one and pressure rod two to tilt and press down on the movable locking blocks on their respective sides, thereby locking the movable locking blocks on both sides onto the safety rope.

9. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The locking component includes a fixed block on one side of the rope passage and a cam on the other side of the rope passage. The fixed block has a groove on the side facing the rope passage for engaging the safety rope. The cam is rotatably hinged to the housing, and a torsion spring is provided at the hinge. The torsion spring provides an upward rotational force to the cam. An upper limit structure and a lower limit structure are respectively provided above and below the cam on the housing. When the safety rope passes through the rope passage, the fixed block and the cam maintain contact with both sides of the safety rope, and the cam is limited by the upper limit structure. The locking transmission assembly includes a connecting rod that is integral with or connected to the cam. The end of the connecting rod is inclined upward and connected to a pull ring. When the safety rope passes through the rope passage and the safety belt pulls down the pull ring, the connecting rod drives the cam to rotate downward to press the safety rope, and the cam is limited by the lower limit structure.

10. The self-locking device for the safety rope of the suspended platform as described in claim 1, characterized in that: The locking mechanism includes a fixing block on one side of the rope passage and a gripping plate on the other side of the rope passage. The fixing block has a groove on the side facing the rope passage for engaging the safety rope, and the gripping plate has gripping teeth on the side facing the rope passage for clamping the safety rope. The locking transmission assembly includes a rocker arm and a spring that are hinged to the housing and can swing up and down. The rocker arm is tilted and its lower end is connected to the gripping plate, and its upper end is connected to a pull ring. The spring acts on the rocker arm. When the safety rope passes through the rope passage, the fixing block remains in contact with the safety rope, and the spring causes the gripping teeth to contact the safety rope but not to grip it. When the safety rope passes through the rope passage and the safety belt pulls down the pull ring, the rocker arm drives the gripping teeth to clamp and lock onto the safety rope.

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