A hanging point device for a fall arrester capable of automatically adjusting position

Abstract

The present application provides a fall arrester hanging point device that can automatically adjust the position, and relates to the technical field of fall arrester hanging point devices, which includes a circular track, and is provided with a driving component for driving the mounting seat to slide around along the circular track; an electric hoist, including a shell and a hanging rope, a limit cylinder is passed through the bottom of the shell, one end of the limit cylinder is ball-hinged and installed on the shell, and the hanging rope passes through the limit cylinder and extends out of the shell, and the hanging rope can pull the limit cylinder to deflect in any direction on the shell; a control system includes an angle monitoring component and a control module, when the angle monitoring component detects that the deflection angle of the limit cylinder exceeds 30°, the angle monitoring component can trigger the control module to start, and the control module can drive the driving component to adjust the position of the electric hoist on the circular track through the mounting seat until the angle monitoring component detects that the deflection angle of the limit cylinder does not exceed 30°. The present application has the function of real-time monitoring of the inclination angle of the hanging rope to ensure the construction safety of construction personnel.

Description

Technical Field

[0001] The present application relates to the technical field of fall arrester hanging point devices, and in particular to a fall arrester hanging point device capable of automatically adjusting a position. Background Art

[0002] The fall arrester hanging point device is a safety device used for high-altitude work, especially outdoor high-altitude work. Its main purpose is to prevent workers or other operators from accidentally falling during work and ensure personnel safety.

[0003] At present, the hanging point devices of fall arresters are divided into two categories, one is a fixed hanging point and the other is a temporary hanging point. Fixed hanging points are generally pre-buried on the steel structure body or the concrete body during the infrastructure stage to establish fixed hanging points, and then the fall arrester is connected to the fixed hanging point for use. Temporary hanging points are set up by scaffold workers on solid locations such as steel beams and concrete structures, and then the fall arrester is connected to the temporary hanging point for use. After use, the temporary hanging point is removed and a new temporary hanging point is reset according to demand. Whether it is a current fixed hanging point or a temporary hanging point, after the fall arrester is hung, the connection position between the fall arrester and the hanging point is fixed. When using the arrester hanging point device, you only need to connect the hanging rope at the other end of the arrester to the safety belt worn by the construction workers. By retracting and releasing the length of the hanging rope on the fall arrester, the construction workers can carry out safe construction within a certain range.

[0004] On the one hand, to prevent workers from falling from heights and hitting surrounding objects due to excessive swing amplitude, and on the other hand, to prevent friction and damage between the hanging rope of the fall arrester and the buildings near the construction site, the inclination angle of the hanging rope of the fall arrester cannot exceed 30° in the requirements of safe construction. For this reason, temporary hanging points are often used for hanging points of fall arresters in industrial enterprises. Construction workers can appropriately change the hanging point position of the fall arrester according to the scope of construction while ensuring that the inclination angle of the hanging rope of the fall arrester does not exceed 30°, thereby completing the overall construction of the building. When changing the hanging point position of the fall arrester, the scaffolding master needs to set up temporary hanging points at the same height many times. This method is time-consuming and labor-intensive, and there are great risks. Utility Model Content

[0005] In order to improve the problem that it is time-consuming, labor-intensive and risky to re-set temporary hanging points at the same height multiple times, the present application provides a fall arrester hanging point device that can automatically adjust the position.

[0006] The present application provides a fall arrester hanging point device capable of automatically adjusting the position, which adopts the following technical solution:

[0007] A fall arrester hanging point device capable of automatically adjusting position, comprising:

[0008] An annular track on which a mounting seat is slidably mounted, and a driving assembly for driving the mounting seat to slide around the annular track is provided on the annular track;

[0009] An electric hoist is fixedly mounted on a mounting seat, the electric hoist comprises a shell fixed to the mounting seat and a hanging rope wound in the shell, a limiting cylinder is passed through the bottom of the shell, one end of the limiting cylinder is ball-hingedly mounted on the shell, one end of the hanging rope away from the winding roller passes through the limiting cylinder and extends out of the shell, and the hanging rope can pull the limiting cylinder to swing in any direction on the shell; and

[0010] The control system includes an angle monitoring component arranged between the limit cylinder and the shell and a control module electrically connected to the angle monitoring component. The drive component is electrically connected to the control module. When the angle monitoring component detects that the swing angle of the limit cylinder exceeds 30°, the angle monitoring component can trigger the control module to start, and the control module can drive the drive component to adjust the position of the electric hoist on the circular track through the mounting seat until the angle monitoring component detects that the swing angle of the limit cylinder does not exceed 30°.

[0011] Furthermore, the angle monitoring assembly includes a receiver and a transmitter, and the transmitter and the receiver are both arranged as an annular structure, and the annular transmitter is fixedly sleeved on the limit cylinder, and the annular receiver is fixedly installed on the shell, and the ball joint between the limit cylinder and the shell is located at the center of the annular receiver. When the hanging rope pulls the limit cylinder and the deflection exceeds 30°, the transmitter is located in the vertical projection area of ​​the receiver, and the signal emitted by the transmitter can be received by the receiver.

[0012] Furthermore, the inner diameter of the limiting cylinder is the same as the diameter of the hanging rope, and a fall arrester is connected to one end of the hanging rope extending out of the shell.

[0013] Furthermore, a smooth layer is provided on the inner wall of the limiting cylinder.

[0014] Furthermore, a winding roller for winding up the hanging rope is rotatably installed in the shell, and a rotating motor for driving the winding roller to rotate forward and reverse is arranged outside the shell. The control module includes a signal processor and a remote operator, the rotating motor is electrically connected to the remote operator, and the receiver and the drive assembly are both electrically connected to the signal processor.

[0015] Furthermore, the receiver includes a transparent first annular cover installed on the shell and a plurality of laser receiving modules evenly distributed along the circumference of the first annular cover, and the transmitter includes a transparent second annular cover fixedly mounted on the limiting cylinder and a plurality of laser emitting modules evenly distributed along the circumference of the second annular cover, and the laser receiving module can receive the signal emitted by the laser emitting module.

[0016] Furthermore, the outer surfaces of the first annular cover shell and the second annular cover shell are both paved with a transparent anti-sticking film.

[0017] Furthermore, a plurality of hangers for hoisting are arranged on the top of the annular track.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. The electric hoist is slidably installed on the circular track through the mounting seat. The driving component on the circular track can drive the mounting seat to drive the electric hoist to adjust its position. At the same time, a control system is also provided. The control system includes an angle monitoring component and a control module, so that when the fall arrester hanging point device is used, the angle monitoring component can monitor the inclination angle of the hanging rope on the electric hoist in real time. Once the inclination angle of the hanging rope exceeds 30°, the control system drives the driving component to start, and the driving component adjusts the position of the mounting seat and the electric hoist until the angle monitoring detects that the inclination angle of the hanging rope is less than 30°, ensuring that the construction personnel can safely perform construction operations;

[0020] 2. A limit cylinder is hinged on the shell of the electric hoist, and then the hanging rope is passed through the limit cylinder so that the hanging rope can pull the limit cylinder to deflect in any direction on the shell, and the receiver in the angle monitoring component is fixed on the shell, and the transmitter is fixed on the limit cylinder, so that the angle monitoring component's monitoring of the deflection angle of the hanging rope will not be affected by the length of the hanging rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the structure of the housing, hanging rope, limiting cylinder, receiver, transmitter and rotating motor in the embodiment of the present application.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the shell in the embodiment of the present application, which is mainly used to show the connection method between the limiting cylinder and the shell.

[0025] Figure 4 It is a schematic diagram of the structure of the transmitter in the embodiment of the present application.

[0026] Figure 5It is a schematic diagram of the structure of the receiver in the embodiment of the present application.

[0027] Figure numerals: 1. annular track; 2. mounting seat; 3. driving assembly; 4. housing; 5. hanging rope; 6. limiting cylinder; 7. receiver; 71. first annular cover; 72. laser receiving module; 8. transmitter; 81. second annular cover; 82. laser transmitting module; 9. fall arrester; 10. winding roller; 11. rotating motor; 12. hanger. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The embodiment of the present application discloses a fall arrester hanging point device that can automatically adjust the position. Figure 1 , Figure 2 and Figure 3 A fall arrester hanging point device capable of automatically adjusting position comprises a circular track 1, a mounting base 2 slidably mounted on the circular track 1, an electric hoist fixed on the mounting base 2, and a driving component 3 for driving the mounting base 2 to drive the electric hoist to slide around the circular track 1. A plurality of hangers 12 for hoisting are arranged on the top of the circular track 1, so that the circular track 1 is horizontally and stably hoisted on the roof through the plurality of hangers 12. The driving component 3 can be a sprocket transmission component or a pulley transmission component. Considering the stability of transmission and the cost of maintenance, in the embodiment of the present application, the driving component 3 is set as a sprocket transmission component. Gears are rotatably mounted at the four corners of the circular track 1, and chains are tensioned and wound around the four gears. The layout direction of the chain is consistent with the surrounding direction of the circular track 1. A driving motor for driving one of the gears to rotate is fixed on the circular track 1. The mounting base 2 is slidably connected to the circular track 1 and fixedly connected to the chain. As the drive motor is started, the drive motor drives the chain to rotate on the circular track 1 through the gear, thereby driving the electric hoist to adjust its position on the circular track 1 through the mounting seat 2. The electric hoist includes a housing 4 fixed to the mounting seat 2, a winding roller 10 rotatably mounted in the housing 4, a hanging rope 5 wound on the winding roller 10, and a rotating motor 11 for driving the winding roller 10 to rotate forward and reverse. One end of the hanging rope 5 located outside the housing 4 is connected to a fall arrester 9 for connecting to a safety belt worn by construction workers.

[0030] Due to the requirement of safe construction, the inclination angle of the hanging rope 5 cannot exceed 30°, so the present application also provides a control system for controlling the inclination angle of the hanging rope 5. Figure 1 , Figure 2 and Figure 3 A limiting cylinder 6 is provided at the bottom of the shell 4, and one end of the limiting cylinder 6 is ball-hingedly mounted on the shell 4. The end of the hanging rope 5 away from the winding roller 10 is provided with the limiting cylinder 6 and extends out of the shell 4. The hanging rope 5 can pull the limiting cylinder 6 to swing in any direction on the shell 4. The control system includes an angle monitoring component arranged between the limiting cylinder 6 and the shell 4 and a control module electrically connected to the angle monitoring component. The control module includes a signal processor and a remote operator. The remote operator is specifically configured as a movable remote controller. The rotating motor 11 and the driving component 3 are both electrically connected to the remote operator. The remote operator can drive the driving component 3 to start, so that the mounting seat 2 drives the electric hoist to adjust its position on the circular track 1. At the same time, the remote operator can also drive the rotating motor 11 to rotate forward and reverse, thereby realizing the retraction and release of the hanging rope 5 through the winding roller 10.

[0031] Considering that the hanging rope 5 can pull the limit cylinder 6 on the housing 4 to deflect in any direction, the angle monitoring component needs to be able to effectively monitor the tilt angle of the limit cylinder 6 in any direction. Figure 1 , Figure 2 and Figure 3 In the embodiment of the present application, the angle monitoring component includes a receiver 7 and a transmitter 8. The drive component 3 and the receiver 7 are both electrically connected to the signal processor. The transmitter 8 and the receiver 7 are both arranged as an annular structure, and the annular transmitter 8 is fixedly sleeved on the limiting cylinder 6, and the annular receiver 7 is fixedly installed on the shell 4. At the same time, the ball joint between the limiting cylinder 6 and the shell 4 is located at the center of the annular receiver 7.

[0032] When using the fall arrester hanging point device, the driving assembly 3 can be started by the remote operator first, and the driving assembly 3 drives the mounting seat 2 to slide on the circular track 1, so that the mounting seat 2 drives the electric hoist to move to a suitable position; then the rotating motor 11 is driven to start by the remote operator, and the rotating motor 11 drives the winding roller 10 to rotate, so that the hanging rope 5 is lowered to a suitable height, and the construction personnel connect the hanging rope 5 to the safety belt worn by themselves through the fall arrester 9. Then, when the construction personnel pull the hanging rope 5 to deflect in a certain direction through the fall arrester 9, the hanging rope 5 can drive the limit cylinder 6 to deflect on the housing 4 accordingly, and when the hanging rope 5 pulls the limit cylinder 6 to deflect at an angle exceeding 30°, the transmitter 8 is located in the vertical projection area of ​​the receiver 7, and the signal sent by the transmitter 8 can be received by the receiver 7. Then, the receiver 7 transmits the signal to the signal processor. After receiving the signal, the signal processor drives the driving component 3 to start. The driving component 3 drives the mounting seat 2 to drive the electric hoist to slide on the circular track 1. As the position of the electric hoist is adjusted, the inclination angle of the hanging rope 5 gradually decreases, that is, the deflection angle of the limit cylinder 6 on the shell 4 decreases, until the transmitter 8 is no longer located in the vertical projection area of ​​the receiver 7. At this time, the signal emitted by the transmitter 8 is no longer received by the receiver 7, which means that the current inclination angle of the hanging rope 5 is less than 30°, which meets the requirements of safe construction.

[0033] Considering that there is insufficient light at the construction site when the fall arrester hanging point device is in use, in order to ensure that the signal sent by the transmitter 8 can be successfully received by the receiver 7 under insufficient light conditions, Figure 2 , Figure 3 , Figure 4 and Figure 5 The receiver 7 includes a transparent first annular cover 71 mounted on the housing 4 and a plurality of laser receiving modules 72 uniformly distributed along the circumference of the first annular cover 71, and the plurality of laser receiving modules 72 are sealed and set in the first annular cover 71. The transmitter 8 includes a transparent second annular cover 81 fixedly sleeved on the limit tube 6 and a plurality of laser emitting modules 82 uniformly distributed along the circumference of the second annular cover 81, and the plurality of laser emitting modules 82 are sealed and set in the second annular cover 81. At the same time, a transparent anti-sticking film is paved on the outer surfaces of the first annular cover 71 and the second annular cover 81, which effectively reduces the dust attached to the laser receiving module 72, the laser emitting module 82, the first annular cover 71 and the second annular cover 81, so that in the case of insufficient light, the laser signal emitted by the laser emitting module 82 can be smoothly received by the laser receiving module 72, thereby ensuring the safe construction operation of the construction personnel even in the environment of insufficient light.

[0034] In order to further improve the accuracy of the angle monitoring component in detecting the tilt angle of the hanging rope 5, refer to Figure 2, the inner diameter of the limit cylinder 6 is the same as the diameter of the hanging rope 5, that is, the limit cylinder 6 always deflects synchronously with the hanging rope 5, so that the deflection angle of the limit cylinder 6 monitored by the angle monitoring component is the deflection angle of the hanging rope 5. As the winding roller 10 rotates, the hanging rope 5 is retracted and released, so that the hanging rope 5 will slide in the limit cylinder 6, but the inner diameter of the limit cylinder 6 is equal to the diameter of the hanging rope 5. In order to avoid the hanging rope 5 from being worn due to excessive friction between the hanging rope 5 and the inner wall of the limit cylinder 6 when the hanging rope 5 slides in the limit cylinder 6, a smooth layer is provided on the inner wall of the limit cylinder 6. The smooth layer can be a coating with a small friction coefficient such as a silane coating and a fluoropolymer coating. By providing a smooth layer on the inner wall of the limit cylinder 6, not only can the wear of the hanging rope 5 be reduced, but also the hanging rope 5 can be smoothly retracted and released.

[0035] The implementation principle of the fall arrester hanging point device that can automatically adjust the position of the embodiment of the present application is as follows: when using the fall arrester hanging point device, the driving component 3 can be driven to start by the remote operator first, and the driving component 3 drives the mounting seat 2 to slide on the circular track 1, so that the mounting seat 2 drives the electric hoist to move to a suitable position; then the rotating motor 11 is driven to start by the remote operator, and the rotating motor 11 drives the winding roller 10 to rotate, so that the hanging rope 5 is lowered to a suitable height, and the construction personnel connect the hanging rope 5 to the safety belt worn by themselves through the fall arrester 9. Then, when the construction personnel pull the hanging rope 5 to deflect in a certain direction through the fall arrester 9, the hanging rope 5 can drive the limit cylinder 6 to produce a corresponding deflection on the housing 4, and when the deflection angle of the hanging rope 5 pulling the limit cylinder 6 exceeds 30°, the transmitter 8 is located in the vertical projection area of ​​the receiver 7, and the signal sent by the transmitter 8 can be received by the receiver 7. Then, the receiver 7 transmits the signal to the signal processor. After receiving the signal, the signal processor drives the driving component 3 to start. The driving component 3 drives the mounting seat 2 to drive the electric hoist to slide on the circular track 1. As the position of the electric hoist is adjusted, the inclination angle of the hanging rope 5 gradually decreases, that is, the deflection angle of the limit cylinder 6 on the shell 4 decreases, until the transmitter 8 is no longer located in the vertical projection area of ​​the receiver 7. At this time, the signal emitted by the transmitter 8 is no longer received by the receiver 7, which means that the current inclination angle of the hanging rope 5 is less than 30°, which meets the requirements of safe construction.

[0036] 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 fall arrester hanging point device capable of automatically adjusting position, characterized in that: include An annular track on which a mounting seat is slidably mounted, and a driving assembly for driving the mounting seat to slide around the annular track is provided on the annular track; An electric hoist is fixedly mounted on a mounting seat, the electric hoist comprises a shell fixed to the mounting seat and a hanging rope wound in the shell, a limiting cylinder is passed through the bottom of the shell, one end of the limiting cylinder is ball-hingedly mounted on the shell, one end of the hanging rope away from the winding roller passes through the limiting cylinder and extends out of the shell, and the hanging rope can pull the limiting cylinder to swing in any direction on the shell; and The control system includes an angle monitoring component arranged between the limit cylinder and the shell and a control module electrically connected to the angle monitoring component. The drive component is electrically connected to the control module. When the angle monitoring component detects that the swing angle of the limit cylinder exceeds 30°, the angle monitoring component can trigger the control module to start, and the control module can drive the drive component to adjust the position of the electric hoist on the circular track through the mounting seat until the angle monitoring component detects that the swing angle of the limit cylinder does not exceed 30°.

2. A fall arrester hanging point device capable of automatically adjusting position according to claim 1, characterized in that: The angle monitoring assembly includes a receiver and a transmitter, and the transmitter and the receiver are both arranged as an annular structure, and the annular transmitter is fixedly sleeved on the limit cylinder, and the annular receiver is fixedly installed on the shell, and the ball hinge between the limit cylinder and the shell is located at the center of the annular receiver. When the hanging rope pulls the limit cylinder and the deflection exceeds 30°, the transmitter is located in the vertical projection area of ​​the receiver, and the signal emitted by the transmitter can be received by the receiver.

3. The fall arrester hanging point device capable of automatically adjusting position according to claim 2, characterized in that: The inner diameter of the limiting cylinder is the same as the diameter of the hanging rope, and a fall arrester is connected to one end of the hanging rope extending out of the housing.

4. The fall arrester hanging point device capable of automatically adjusting position according to claim 3, characterized in that: A smooth layer is arranged on the inner wall of the limiting cylinder.

5. The fall arrester hanging point device capable of automatically adjusting position according to claim 2, characterized in that: A winding roller for winding up the hanging rope is rotatably installed in the shell, and a rotating motor for driving the winding roller to rotate forward and reverse is arranged outside the shell. The control module includes a signal processor and a remote operator. The rotating motor is electrically connected to the remote operator, and the receiver and the drive assembly are both electrically connected to the signal processor.

6. The fall arrester hanging point device capable of automatically adjusting position according to claim 2, characterized in that: The receiver includes a transparent first annular cover installed on the shell and a plurality of laser receiving modules evenly distributed along the circumference of the first annular cover. The transmitter includes a transparent second annular cover fixedly mounted on the limiting cylinder and a plurality of laser emitting modules evenly distributed along the circumference of the second annular cover. The laser receiving module can receive the signal emitted by the laser emitting module.

7. The fall arrester hanging point device capable of automatically adjusting position according to claim 6, characterized in that: The outer surfaces of the first annular cover shell and the second annular cover shell are both paved with transparent anti-sticking films.

8. The fall arrester hanging point device capable of automatically adjusting position according to claim 1, characterized in that: A plurality of hangers for hoisting are arranged on the top of the annular track.

Images