Anti-falling lifting device for conical rod

Abstract

The utility model discloses an anti-falling lifting device for a conical rod, which comprises a big-end-down conical rod and a lifting device coaxially sleeved on the outer side of the conical rod, and the lifting device comprises an annular plate coaxially arranged with the conical rod; three or more supporting assemblies enabling the annular plate and the conical rod to be kept coaxial are arranged between the annular plate and the conical rod, and the three or more supporting assemblies are circularly and evenly distributed with the axis of the conical rod as the center; the supporting assembly comprises a supporting rod, a spring and a damper, one end of the supporting rod is in rotatable pin joint with the annular plate, and the other end of the supporting rod is a free end; the springs and the dampers are arranged between the adjacent supporting rods and / or between the supporting rods and the annular plates. The anti-falling device is simple in structure and stable and reliable in anti-falling effect; proper spring and damping parameters are set according to the weight of the lifting device and attachments and the taper of the conical rod, slow falling or hovering of the lifting device after a driver or a suspension device fails can be achieved, and the lifting device has the advantage of being high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of anti - falling, in particular to an anti - falling lifting device for a conical rod. Background Art

[0002] In daily life or industrial applications, it is often necessary to lift an object to a high altitude and then keep it suspended, such as high - pole lights. The height of high - pole lights in some occasions reaches more than 30 meters. For structural stability, the pole body is generally designed as a conical rod. Suspending heavy objects at high altitudes is somewhat dangerous, especially it is necessary to prevent falling during lifting operations and in the suspended state. However, the existing anti - falling structures have problems such as complex structures.

[0003] Therefore, there is an urgent need to design an anti - falling lifting device for a conical rod, which has a simple structure, stable and reliable anti - falling effect, can achieve slow descent or hovering, and improve safety. Summary of the Utility Model

[0004] The technical solution adopted by the utility model is as follows:

[0005] An anti - falling lifting device for a conical rod, characterized in that: it includes a conical rod (10) with a smaller upper part and a larger lower part and a lifting device coaxially sleeved outside the conical rod (10), and the lifting device includes an annular plate (20) coaxially arranged with the conical rod (10);

[0006] A support assembly (30) for keeping the annular plate (20) and the conical rod (10) coaxial is arranged between the annular plate (20) and the conical rod (10), and the support assembly (30) is circularly and evenly arranged with three or more around the axis of the conical rod (10);

[0007] The support assembly (30) includes a support rod (31) and a spring (40), one end of the support rod (31) is rotatably pinned to the annular plate (20), and the other end of the support rod (31) is a free end;

[0008] The spring (40) is arranged between adjacent support rods (31) and / or between the support rod (31) and the annular plate (20), and the potential energy of the spring (40) makes the free end of the support rod (31) tightly contact with the conical rod (10).

[0009] Preferably, the support assembly (30) further includes a damper (50), the damper is arranged between adjacent support rods (31) and / or between the support rod (31) and the annular plate (20), and the damper (50) dissipates the energy that causes the angle (a) between the support rod (31) and the conical rod (10) to change.

[0010] Preferably, the damper (50) has a greater ability to dissipate the energy when the included angle (a) becomes smaller than when the included angle (a) becomes larger.

[0011] Preferably, the damper (50) is one or a combination of a liquid damper, a gas damper, and an electromagnetic damper.

[0012] Preferably, the damper (50) is a linear liquid damper with adjustable damping.

[0013] Preferably, the included angle (a) between the support rod (31) and the conical rod (10) is an acute angle.

[0014] Preferably, three or more support assemblies (30) are provided on the upper and lower sides of the annular plate (20) respectively.

[0015] Preferably, the spring (40) of the support assembly (30) is arranged between horizontally adjacent support rods (31).

[0016] Preferably, the damper (50) of the support assembly (30) is arranged between vertically adjacent support rods (31).

[0017] Preferably, a roller (32) is provided between the free end of the support rod (31) and the conical rod (10).

[0018] Preferably, the spring (40) is a helical spring that is connected end to end and wound around all horizontally adjacent support rods (31) in a ring shape.

[0019] Preferably, the damping of the damper (50) gradually increases as the included angle a becomes smaller.

[0020] A high pole lamp includes a lamp, a hoisting device, and the anti-falling lifting device for the conical rod described above. The hoisting device includes a driver and a hoisting rope. The lamp is arranged on the annular plate (20) of the anti-falling lifting device for the conical rod. One end of the hoisting rope is connected to the annular plate (20), and the other end is connected to the driver through a pulley.

[0021] Preferably, the conical rod (10) of the anti-falling lifting device for the conical rod is a hollow structure. The driver is arranged at the bottom inside the conical rod (10). A door panel that can be opened and closed to isolate the driver from the outside is provided at a position of the conical rod (10) close to the driver. A door magnetic sensor for detecting the opening and closing state of the door panel is provided between the door panel and the conical rod (10). The door magnetic sensor is signal-connected to a wireless signal generator.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] 1. The structure is simple, and the anti-falling effect is stable and reliable;

[0024] 2. According to the weight of the lifting device and the attachment, and the taper of the conical rod, appropriate spring parameters can be set to enable the lifting device to slowly descend or hover after the failure of the driver or suspension device, featuring high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0026] Figure 2 is a front view schematic diagram of the present utility model;

[0027] Figure 3 is Figure 2 the A-A cross-sectional view of

[0028] Figure 4 is Figure 2 the top view of

[0029] Wherein: conical rod 10, annular plate 20, support assembly 30, support rod 31, roller 32, spring 40, damper 50, and the included angle a between the support rod 31 and the conical rod 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure content of the present utility model more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions used herein are only for the purpose of illustration.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] Next, in combination with the drawings and the specific embodiments, the present utility model will be further described:

[0034] As Figures 1-4 shown, an anti-falling lifting device for a conical rod includes a conical rod 10 with a smaller upper part and a larger lower part, and a lifting device coaxially sleeved outside the conical rod 10. The lifting device includes an annular plate 20 coaxially arranged with the conical rod 10;

[0035] A support assembly 30 for keeping the annular plate 20 and the conical rod 10 coaxial is arranged between the annular plate 20 and the conical rod 10. The support assembly 30 is arranged in a circular and evenly distributed manner with three or more around the axis of the conical rod 10;

[0036] The support assembly 30 includes a support rod 31 and a spring 40. One end of the support rod 31 is rotatably pinned to the annular plate 20, and the other end of the support rod 31 is a free end;

[0037] The spring 40 is arranged between adjacent support rods 31 and / or between the support rod 31 and the annular plate 20. The potential energy of the spring 40 makes the free end of the support rod 31 tightly contact the conical rod 10.

[0038] Furthermore, the support assembly 30 further includes a damper 50. The damper is arranged between adjacent support rods 31 and / or between the support rod 31 and the annular plate 20. The damper 50 dissipates the energy that causes the angle a between the support rod 31 and the conical rod 10 to change.

[0039] In this embodiment, the support assembly 30 is arranged in four. The support rods 31 are arranged downward. The potential energy of the spring 40 makes the support rods 31 tightly contact the conical rod 10 in a balanced manner, so that the annular plate 20 and the conical rod 10 remain coaxial. According to the weight of the lifting device and the attached object, and the taper of the conical rod, appropriate spring parameters are set, so that the force of the support rod 31 tightly contacting the conical rod 10 forms an upward component force, so that the lifting device slowly descends or hovers at a certain height at the set speed.

[0040] However, the spring can basically not dissipate energy. Therefore, during the descent process, relatively large vibrations may occur. Moreover, when hanging at a high altitude, relatively large vibrations will also be caused by the influence of wind force. Therefore, in this embodiment, a damper 50 is added. According to the weight of the lifting device and the attached object, and the taper of the conical rod, appropriate spring and damper parameters are set. When the suspension device fails, the lifting device falls downward under the action of gravity. Since the conical rod 10 has a smaller upper part and a larger lower part, the angle a between the support rod 31 and the conical rod 10 gradually becomes smaller. The damper 50 stretches or compresses, and dissipates the kinetic energy that causes the angle a to become smaller during the stretching or compressing process, so as to realize that when the drive device or the suspension device fails, or the operator makes an operation error, the lifting device slowly descends or hovers at a certain height at the set speed.

[0041] Further, in order to prevent the damping of the damper 50 from causing the angle a to increase too slowly during the rising process of the lifting device, resulting in the support rod 31 not being able to tightly abut against the tapered rod 10 in real time, the damper 50 has a greater ability to dissipate the energy that causes the angle a to decrease than the energy that causes the angle a to increase.

[0042] Further, the damper 50 is one or a combination of a liquid damper, a gas damper, and an electromagnetic damper.

[0043] Further, in order to adapt to working conditions with different heights, tapers, and loads and improve the versatility of the damper, the damper 50 is a linearly adjustable liquid damper.

[0044] Further, the angle a between the support rod 31 and the tapered rod 10 is an acute angle.

[0045] In this embodiment, the angle (a) is set to 30 to 75 degrees.

[0046] Further, in order to improve the stability of the lifting device, three or more support assemblies 30 are respectively provided on the upper side and the lower side of the annular plate 20.

[0047] Further, a roller 32 is provided between the free end of the support rod 31 and the tapered rod 10.

[0048] Further, in order to improve the ability of the annular plate 20 to remain coaxial with the tapered rod 10, the spring 40 is provided between horizontally adjacent support rods 31.

[0049] Further, in order to avoid the elastic error between multiple springs, resulting in different abutting forces of each support rod 31 against the tapered rod 10 and causing the annular plate 20 to deflect relative to the tapered rod 10, the spring 40 is a helical spring that is connected end to end and wound around all horizontally adjacent support rods 31 in a ring shape.

[0050] In this embodiment, a single helical spring connected end to end is provided. According to needs, multiple helical springs connected end to end can also be provided, which are respectively wound around all horizontally adjacent support rods 31 in a ring shape in parallel, so as to reduce the instability of the overall structure caused by the failure of a single spring and improve safety.

[0051] Further, in order to improve the stability of the lifting device in the suspended state and the slow descent state and prevent deflection, the damper 50 is provided between vertically adjacent support rods 31.

[0052] The damper 50 is provided between vertically adjacent support rods 31. During the lifting and lowering process of the lifting device, the vertically adjacent support rods 31 move relative to each other and away, and the maximum stroke of the damper 50 can be obtained while keeping the structure simple.

[0053] Furthermore, in order to enable the lifting device to achieve a smooth descent with gradually decreasing speed and reduce impact when the driver, hoisting rope or fixing device fails, the damping of the damper 50 gradually increases as the included angle a becomes smaller.

[0054] Through the design of variable damping of the damper 50 and setting an appropriate damping curve, the lifting device can also be simply and quickly hovered when it falls to a certain height above the ground, further improving safety.

[0055] A high-pole lamp includes a lamp, a hoisting device and the anti-falling lifting device for the conical pole described above. The hoisting device includes a driver and a hoisting rope. The lamp is arranged on the annular plate 20 of the anti-falling lifting device for the conical pole. One end of the hoisting rope is connected to the annular plate 20, and the other end is connected to the driver after passing through a pulley.

[0056] Furthermore, the conical pole 10 of the anti-falling lifting device for the conical pole is of a hollow structure, and the driver is arranged at the bottom inside the conical pole 10.

[0057] A door panel that can be opened and closed and isolates the driver from the outside is arranged at a position of the conical pole 10 close to the driver. A door magnetic inductor for detecting the opening and closing state of the door panel is arranged between the door panel and the conical pole. The door magnetic inductor is electrically connected to a wireless signal generator.

[0058] The door magnetic inductor is signal-connected to the wireless signal generator. When the door panel is opened, a signal is sent to the receiving end to prompt the maintenance personnel.

[0059] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all such changes and deformations should fall within the protection scope of the claims of the utility model patent.

Claims

1. A falling prevention lifting device for a tapered rod, characterized in that: A lifting device comprising a tapered rod (10) with a smaller top and a larger bottom and a coaxial sleeve arranged outside the tapered rod (10), wherein the lifting device comprises an annular plate (20) arranged coaxially with the tapered rod (10); A support assembly (30) is provided between the annular plate (20) and the conical rod (10) to keep the annular plate (20) and the conical rod (10) coaxial, and three or more support assemblies (30) are arranged in a circular and uniform distribution with the axis of the conical rod (10) as the center; The support assembly (30) comprises a support rod (31) and a spring (40), one end of the support rod (31) is rotatably pin-connected to the annular plate (20), and the other end of the support rod (31) is a free end; The spring (40) is arranged between adjacent support rods (31) and / or between the support rod (31) and the annular plate (20), and the potential energy of the spring (40) causes the free end of the support rod (31) to be in close contact with the conical rod (10).

2. The anti-fall lifting device for a tapered rod according to claim 1, characterized in that: The support assembly (30) further comprises a damper (50), which is arranged between adjacent support rods (31) and / or between the support rod (31) and the annular plate (20), and the damper (50) dissipates energy that causes a change in an angle (a) between the support rod (31) and the conical rod (10).

3. The anti-fall lifting device for a tapered rod according to claim 2, characterized in that: The damper (50) has a greater ability to dissipate energy that causes the angle (a) to decrease than to dissipate energy that causes the angle (a) to increase.

4. The anti-fall lifting device for a tapered rod according to claim 2, characterized in that: The damper (50) is one or a combination of a liquid damper, a gas damper and an electromagnetic damper.

5. The anti-fall lifting device for a tapered rod according to claim 2, characterized in that: The damper (50) is a linear liquid damper with adjustable damping.

6. The anti-fall lifting device for a tapered rod according to claim 2, characterized in that: The angle (a) is an acute angle.

7. The anti-fall lifting device for a tapered rod according to claim 1, characterized in that: Three or more support assemblies (30) are respectively arranged on the upper side and the lower side of the annular plate (20), and the dampers (50) of the support assemblies (30) are arranged between vertically adjacent support rods (31).

8. The anti-fall lifting device for a tapered rod according to claim 1 or 7, characterized in that: The spring (40) of the support assembly (30) is arranged between horizontally adjacent support rods (31).

9. The anti-fall lifting device for a tapered rod according to any one of claims 2 to 5, characterized in that: The damping of the damper (50) gradually increases as the angle a decreases.

10. The anti-fall lifting device for a tapered rod according to claim 1, characterized in that: The spring (40) is a spiral spring connected end to end and wound around all horizontally adjacent support rods (31) in a ring shape.

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