Suspension line take-up and pay-off device with anti-off line structure

Abstract

The utility model discloses a suspension line take-up and pay-off device with a line-off prevention structure, which comprises a rack, a wire spool and a driving device for driving the wire spool to rotate are arranged on the rack in a relatively rotating manner, a winding groove is formed in the wire spool, a suspension line is wound in the winding groove, one end of the suspension line can penetrate out of the rack to be connected with an exhibition appliance, and the other end of the suspension line can penetrate out of the rack to be connected with the exhibition appliance. And a plurality of pressing wheels capable of pressing the suspension line in the winding groove are arranged on the periphery of the wire spool on the rack. In the process that the driving device drives the wire spool to rotate to wind the suspension wire to enable the unfolding tool to move upwards, the multiple pressing wheels connected with the wire spool in a rolling mode can press the suspension wire in the wire winding groove, the suspension wire is prevented from being disengaged from the wire spool and wound on the rotating shaft, and therefore the suspension wire winding and unwinding device is stable and reliable in work and operation and high in practicability. Long-term use can be realized.

Description

Technical field

[0001] The utility model relates to a suspension line retracting and releasing device with a line-off prevention structure. [Background Technology]

[0002] In order to achieve a good display effect, lamps, artworks and other exhibits are now suspended and displayed using suspension wires, and the height of the exhibits is changed by winding or releasing the suspension wires through a suspension wire retracting and releasing device. This type of suspension wire retracting and releasing device, such as the structure disclosed in Chinese utility model patent application number 201821416864.1, includes a chassis, a power module, a main control module and a motor are arranged inside the chassis, the rotating shaft of the motor is connected to a small synchronous wheel, the small synchronous wheel is connected to a large synchronous wheel through a synchronous belt, and the large synchronous wheel is coaxially connected to a winding drum, one end of the suspension wire is wound around the winding drum, and the other end is connected to the lamp through a wire hole opened at the bottom of the chassis, which can control the vertical lifting and lowering movement of the lamp. However, in the above-mentioned suspension wire retracting and releasing device, the suspension wire may fall off the winding drum and easily be entangled in the rotating shaft, affecting the operation of the suspension wire retracting and releasing device, thereby affecting the user experience.

[0003] Therefore, the present invention is just based on above deficiency and produces. [Utility Model Content]

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a suspension line retracting and releasing device with a line-off prevention structure, which has a simple structure and stable and reliable operation.

[0005] The utility model is realized through the following technical solutions:

[0006] A suspension wire retracting and releasing device with an anti-wire-off structure is characterized in that it includes a frame 1, a wire winding drum 2 and a driving device 3 for driving the wire winding drum 2 to rotate relatively rotatably provided on the frame 1, a wire winding drum 2 is provided with a wire winding groove 20, a suspension wire 4 with one end that can pass through the frame 1 and be connected to the exhibition equipment is wound in the wire winding groove 20, and a plurality of pressure wheels 5 that can press the suspension wire 4 into the wire winding groove 20 are provided on the outer periphery of the wire winding drum 2 on the frame 1.

[0007] The suspension wire retracting and releasing device with an anti-wire-off structure as described above is characterized in that the pressure wheel 5 is rotatably arranged on the frame 1 so that the pressure wheel 5 can be driven to rotate when the winding drum 2 rotates.

[0008] The suspension line retracting and releasing device with an anti-line-off structure as described above is characterized in that: the pressure wheel 5 is movably arranged on the frame 1, and the frame 1 is provided with a pulling device 6 that drives the pressure wheel 5 to always move close to the winding drum 2 so that the pressure wheel 5 is pressed against the outer peripheral surface of the winding drum 2 to prevent the suspension line 4 from escaping from the winding drum 2.

[0009] The suspension line retracting and releasing device with an anti-line-off structure as described above is characterized in that: a plurality of elongated holes 10 are provided on the frame 1, and the pressure wheel 5 is provided with a pressure wheel shaft 51 with one end passing through one of the elongated holes 10 and being able to slide along the elongated hole 10, and the pulling device is a tension spring with one end fixed on the pressure wheel shaft 51 and the other end fixed on the frame 1.

[0010] The suspension line retracting and releasing device with an anti-line-off structure as described above is characterized in that: a protective cover 7 for covering the winding reel 2 is provided on the frame 1, and a plurality of notches 71 for the pressure wheel 5 to extend into and roll in connection with the winding reel 2 are provided on the protective cover 7 in a one-to-one correspondence with the pressure wheel 5.

[0011] The suspension line retracting and releasing device with an anti-line-off structure as described above is characterized in that: the frame 1 includes a vertically arranged mounting plate 11, a mounting frame 13 mounted on the mounting plate 11 through a connecting column 12, the driving device 3 is arranged on the mounting plate 11, the winding reel 2 and the protective cover 7 are arranged between the mounting plate 11 and the mounting frame 13, and the pressure wheel 5 is arranged on the mounting frame 13.

[0012] The suspension line retracting and releasing device with an anti-line-off structure as described above is characterized in that: the driving device 3 includes a driving motor 31 installed on the mounting plate 11 and a control main board 32 for controlling the start and stop of the driving motor 31, and the winding reel 2 includes a winding shaft 21 fixedly connected to the motor shaft of the driving motor 31 and two discs 22 respectively installed on both sides of the winding shaft 21.

[0013] The suspension line retracting and releasing device with an anti-line-off structure as described above is characterized in that a locking turntable 8 that rotates with the winding reel 2 is fixedly installed on one side of the winding reel 2, and the locking turntable 8 is provided with a plurality of circumferentially evenly distributed locking holes 81, and the frame 1 is provided with an electromagnetic valve 9 whose one end of the valve stem can extend into one of the locking holes 81 to lock the winding reel 2.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The driving device of the present invention drives the winding drum to rotate and reel in the suspension wire to move the display device upward. In the process, multiple pressure wheels connected to the winding drum can press the suspension wire into the winding groove to prevent the suspension wire from escaping from the winding drum and winding around the rotating shaft, so that the suspension wire retracting and releasing device can operate stably and reliably and can be used for a long time.

[0016] 2. In the present invention, the setting of the pulling device can make the pressure wheel always have a tendency to move toward the outer peripheral surface of the winding drum under the pulling of the pulling device, so that the pressure wheel is always pressed against the outer peripheral surface of the winding drum, preventing the suspension line from escaping from the outer peripheral surface of the winding drum and moving. Moreover, when the winding drum is large, it can adaptively open in the direction away from the outer peripheral surface of the winding drum, which is convenient for installing winding drums of different diameters to adapt to the lifting of exhibition equipment of different heights.

[0017] 3. The utility model provides a protective cover to cover and protect the winding reel and the locking turntable to prevent foreign matter from entering and affecting the rotation.

[0018] 4. In the present invention, after the display device is raised or lowered to the required height, the drive motor stops working and at the same time, one end of the valve stem of the solenoid valve can be extended into one of the lock holes to lock the winding reel. This can prevent the display device from automatically driving the winding reel to rotate and fall under the action of gravity when the power is off or in other circumstances.

Brief Description of the Drawings

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

[0020] Figure 2 It is a structural diagram of the utility model;

[0021] Figure 3 It is an exploded view of the present utility model. [Specific implementation method]

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figures 1 to 3 As shown, a suspension wire retracting and unwinding device with an anti-wire-off structure comprises a frame 1, a wire reel 2 rotatably provided on the frame 1, and a driving device 3 for driving the wire reel 2 to rotate. The wire reel 2 is provided with a wire groove 20, in which a suspension wire 4 having one end capable of passing through the frame 1 and connected to the display device is wound. The frame 1 is provided with a plurality of pressure rollers 5 on the outer periphery of the wire reel 2, which are capable of pressing the suspension wire 4 into the wire groove 20. In the process of the driving device 3 of the utility model driving the wire reel 2 to rotate and reel the suspension wire 4 so as to move the display device upward, the plurality of pressure rollers 5 in rolling connection with the wire reel 2 can press the suspension wire 4 into the wire groove 20, preventing the suspension wire 4 from escaping from the wire reel 2 and being wound around the rotating shaft, thereby making the suspension wire retracting and unwinding device stable and reliable in operation and capable of long-term use.

[0024] Specifically, the pressure wheel 5 is rotatably provided on the frame 1 so that the pressure wheel 5 can be driven to rotate when the winding drum 2 rotates. The outer periphery of the pressure wheel 5 is in rolling contact with the winding drum 2, which can effectively reduce unnecessary friction in the process of preventing the suspension wire 4 from escaping from the winding drum 2.

[0025] Furthermore, the pressure wheel 5 is movably mounted on the frame 1. The pressure wheel 5 can move toward or away from the outer peripheral surface of the winding drum 2. The frame 1 is provided with a pulling device 6 that drives the pressure wheel 5 to always move toward the winding drum 2 so that the pressure wheel 5 is pressed against the outer peripheral surface of the winding drum 2 to prevent the suspension line 4 from escaping from the winding drum 2. The setting of the pulling device 6 allows the pressure wheel 5 to always have a tendency to move toward the outer peripheral surface of the winding drum 2 under the pulling of the pulling device 6, so that the pressure wheel 5 is always pressed against the outer peripheral surface of the winding drum 2 to prevent the suspension line 4 from escaping from the outer peripheral surface of the winding drum 2. Moreover, when the winding drum 2 is large, the pressure wheel 5 opens adaptively in the direction away from the outer peripheral surface of the winding drum 2, which facilitates the installation of winding drums 2 of different diameters to accommodate exhibition equipment of different lifting heights.

[0026] like Figure 2 As shown, the frame 1 is provided with a plurality of elongated holes 10, and the pressure roller 5 is provided with a pressure roller shaft 51, one end of which passes through one of the elongated holes 10 and can slide along the elongated hole 10. The pulling device is a tension spring with one end fixed to the pressure roller shaft 51 and the other end fixed to the frame 1. Specifically, the frame 1 is provided with a plurality of buckle holes 14, each buckle hole 14 is respectively provided for buckling one end of one of the tension springs, and the other end of the tension spring is buckled to one end of the pressure roller shaft 51, so that the tension spring always tightens the pressure roller shaft 51, thereby keeping the pressure roller 5 pressed against the outer circumference of the winding drum 2.

[0027] Furthermore, a protective cover 7 is provided on the frame 1 to cover the winding drum 2. The protective cover 7 is provided with a plurality of notches 71 corresponding to the pressure rollers 5, through which the pressure rollers 5 can extend and roll to connect with the winding drum 2. The utility model provides a protective cover to cover and protect the winding drum 2 and the locking turntable 8 to prevent foreign objects from entering and affecting the rotation. The protective cover 7 has a plurality of notches 71, so that the pressure rollers 5 can extend through the notches 71 and the outer circumference of the pressure rollers 5 always rests on the outer circumference of the winding drum 2.

[0028] In the present invention, the frame 1 includes a vertically arranged mounting plate 11, a mounting frame 13 mounted on the mounting plate 11 via a connecting column 12, a driving device 3 disposed on the mounting plate 11, a winding drum 2 and a protective cover 7 disposed between the mounting plate 11 and the mounting frame 13, and a pressure roller 5 disposed on the mounting frame 13. Specifically, four pressure rollers 5 are provided and are disposed at the four corners of the mounting frame 13. In this way, the four pressure rollers 5 are respectively in close contact with the upper left, upper right, lower left, and lower right of the winding drum 2, effectively preventing the suspension wire 4 from falling off the winding drum 2.

[0029] Specifically, the drive device 3 includes a drive motor 31 mounted on the mounting plate 11 and a control board 32 that controls the start and stop of the drive motor 31. The wire reel 2 includes a winding shaft 21 fixedly connected to the motor shaft of the drive motor 31 and two circular disks 22 mounted on either side of the winding shaft 21. When the drive motor 31 is in operation, the winding shaft 21 rotates, causing the suspension wire 4 to be wound between the two circular disks 22 or unwound, thereby raising or lowering the display device.

[0030] In the present invention, a locking dial 8 is fixedly mounted on one side of the wire winding reel 2 and rotates with it. The locking dial 8 is provided with multiple locking holes 81 evenly distributed around the circumference. A solenoid valve 9 is provided on the frame 1, the valve stem of which can be inserted into one of the locking holes 81 to lock the wire winding reel 2. After the display device is raised or lowered to the desired height, the drive motor 31 stops, and the valve stem of the solenoid valve 9 simultaneously inserts into one of the locking holes 81 to lock the wire winding reel 2. This prevents the display device from automatically rotating and falling due to gravity during a power outage or other circumstances, ensuring the safety of the device and preventing accidents.

Claims

1. A suspension line retracting and releasing device with an anti-line-off structure, characterized in that: The invention comprises a frame (1), a winding drum (2) and a driving device (3) for driving the winding drum (2) to rotate relatively provided on the frame (1), a winding groove (20) provided on the winding drum (2), a suspension wire (4) having one end capable of passing through the frame (1) and connected to the display device wound in the winding groove (20), and a plurality of pressure wheels (5) capable of pressing the suspension wire (4) into the winding groove (20) provided on the outer periphery of the winding drum (2) on the frame (1).

2. The suspension wire retracting and releasing device with an anti-wire-off structure according to claim 1, characterized in that: The pressing wheel (5) is rotatably arranged on the frame (1) so that the pressing wheel (5) can be driven to rotate when the winding drum (2) rotates.

3. The suspension line retracting and releasing device with an anti-line-off structure according to claim 2, characterized in that: The pressing wheel (5) is movably arranged on the frame (1), and the frame (1) is provided with a pulling device (6) for driving the pressing wheel (5) to always move closer to the winding drum (2) so that the pressing wheel (5) is pressed against the outer peripheral surface of the winding drum (2) to prevent the suspension wire (4) from escaping from the winding drum (2).

4. The suspension wire retracting and releasing device with a wire-off prevention structure according to claim 3, characterized in that: The frame (1) is provided with a plurality of elongated holes (10), the pressure wheel (5) is provided with a pressure wheel shaft (51) with one end passing through one of the elongated holes (10) and being able to slide along the elongated hole (10), and the pulling device is a tension spring with one end fixed to the pressure wheel shaft (51) and the other end fixed to the frame (1).

5. The suspension line retracting and releasing device with an anti-line-off structure according to claim 2, characterized in that: The frame (1) is provided with a protective cover (7) for covering the winding drum (2), and the protective cover (7) is provided with a plurality of notches (71) corresponding to the pressing wheels (5) for the pressing wheels (5) to extend into and rollably connect with the winding drum (2).

6. The suspension line retracting and releasing device with an anti-line-off structure according to claim 5, characterized in that: The frame (1) includes a vertically arranged mounting plate (11), a mounting frame (13) mounted on the mounting plate (11) via a connecting column (12), the driving device (3) is arranged on the mounting plate (11), the winding drum (2) and the protective cover (7) are arranged between the mounting plate (11) and the mounting frame (13), and the pressure wheel (5) is arranged on the mounting frame (13).

7. The suspension line retracting and releasing device with a line-off prevention structure according to claim 6, characterized in that: The driving device (3) comprises a driving motor (31) mounted on a mounting plate (11) and a control mainboard (32) for controlling the start and stop of the driving motor (31); the winding reel (2) comprises a winding shaft (21) fixedly connected to the motor shaft of the driving motor (31) and two discs (22) respectively mounted on both sides of the winding shaft (21).

8. The suspension line retracting and releasing device with a line-off prevention structure according to claim 1, characterized in that: A locking turntable (8) is fixedly mounted on one side of the winding reel (2) and rotates with the winding reel (2). The locking turntable (8) is provided with a plurality of locking holes (81) evenly distributed in the circumferential direction. The frame (1) is provided with a solenoid valve (9) whose valve stem can extend into one of the locking holes (81) to lock the winding reel (2).

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