Single-point elevator
By designing diverse single-point hoists and employing rotatable guide mechanisms and cable rewinding mechanisms, both upright and inverted installation methods are achieved, solving the problem of poor flexibility of hoists in different stage scenarios and improving reliability and safety.
Patent Information
- Application Number
- CN202423291526.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing hoist installation method is limited, resulting in poor flexibility in different stage scenarios and affecting its reliability.
A single-point hoist was designed, which adopts a rotatable guide mechanism and a wire take-up and unwinding mechanism, supports both upright and inverted installation methods, and the hoisting wire is installed through different guide paths to achieve diversified installation and operation methods.
This improves the flexibility and reliability of the hoist in different stage scenarios, ensuring the stability and safety of hoisting.
Smart Images
Figure CN223752299U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stage performance equipment technical field, in particular to a single point hoist. BACKGROUND
[0002] The hoist is often used in stage performance and is used for lifting curtain and performance props. Because the space of the equipment above the stage and the installation points are different, the existing hoist installation mode is single, and the flexibility is poor when applied to different stage scenes, thereby affecting the use reliability. UTILITY MODEL CONTENTS
[0003] (I) technical problem solved
[0004] In view of the defects of the prior art, the utility model provides a single point hoist, which has diversified installation mode and working mode, can be flexibly applied to different stage scenes, and improves the use reliability.
[0005] (II) technical scheme
[0006] To achieve the above object, the embodiment of the present application provides a single point hoist, which comprises a frame, a take-up and pay-off mechanism arranged on the frame, the take-up and pay-off mechanism comprising a rotatable drum and a driving assembly for driving the drum to rotate, a lifting line being wound on the drum, and a guide mechanism arranged on the frame above the drum, the guide mechanism comprising a cycloidal arm rotatably connected with the frame and a first cycloidal roller and a second cycloidal roller rotatably arranged on the cycloidal arm, wherein the traction end of the lifting line passes through the first cycloidal roller and the second cycloidal roller in sequence.
[0007] Further, the guide mechanism comprises two cycloidal arms, the two cycloidal arms are arranged in a horizontal direction and are spaced apart, and the first cycloidal roller and the second cycloidal roller are rotatably arranged between the two cycloidal arms.
[0008] Further, the guide mechanism further comprises two coaxially arranged cycloidal shafts, and the two cycloidal arms are rotatably connected with the frame through the two cycloidal shafts.
[0009] Further, the first cycloidal roller is arranged at one end of the cycloidal arm away from the cycloidal shaft, the second cycloidal roller is arranged at one end of the cycloidal arm adjacent to the cycloidal shaft, and the swinging distance of the first cycloidal roller along the axial direction of the drum is greater than the length of the drum along the axial direction.
[0010] Further, the two cycloidal shafts are respectively provided with a first through hole along the axial direction thereof, the center line of the first through hole is tangentially arranged with the second cycloidal roller, and the center line of the first through hole is located on one side of the drum.
[0011] Further, the single-point hoist further comprises a line turning mechanism, the line turning mechanism comprising a line turning shaft and a line turning roller, the line turning roller being rotatably connected to the frame through the line turning shaft, the line turning shaft being coaxially arranged with the pendulum shaft, and the line turning shaft being provided with a second through hole in the axial direction of the line turning shaft, the center line of the second through hole being tangentially arranged with the line turning roller.
[0012] Further, the outer circumferential sides of the first pendulum roller, the second pendulum roller and the line turning roller are respectively provided with a wire guide ring groove.
[0013] Further, the outer surface of the drum is provided with a guide groove for winding the hanging wire.
[0014] (Three) beneficial effects
[0015] Compared with the prior art, the single-point hoist provided by the utility model has the following beneficial effects: the single-point hoist can be installed in a positive manner, i.e. the guide mechanism is located above the drum, and the hanging wire on the drum is wound around the first pendulum roller and the second pendulum roller from above to achieve the purpose of lifting the weight; the single-point hoist can also be installed in an inverted manner, i.e. the guide mechanism is located below the drum, and the hanging wire on the drum is wound around the first pendulum roller from below and then wound around the second pendulum roller from above to achieve the purpose of lifting the weight; the installation manner and the working manner are diversified, and the single-point hoist can be flexibly applied to different stage scenes to improve the use reliability. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 Fig. 1 shows a structure schematic diagram of a single-point hoist in a positive manner according to an embodiment of the present application;
[0017] Fig. 2 Fig. 2 shows a structure schematic diagram of a single-point hoist in an inverted manner according to an embodiment of the present application;
[0018] Fig. 3 Fig. 3 shows a side view structure schematic diagram of a single-point hoist according to an embodiment of the present application.
[0019] Markings in the drawings:
[0020] 1, frame; 11, base; 12, support plate;
[0021] 2, take-up and pay-off mechanism; 21, drum; 211, guide groove; 22, driving assembly; 23, hanging wire;
[0022] 3, guide mechanism; 31, pendulum arm; 32, first pendulum roller; 33, second pendulum roller; 34, pendulum shaft;
[0023] 4, line turning mechanism; 41, line turning shaft; 42, line turning roller. DETAILED DESCRIPTION
[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0025] Please refer to Figs. 1 to 3 The present application embodiment provides a single-point hoist, comprising: a frame 1, a take-up mechanism 2 and a guide mechanism 3.
[0026] The take-up mechanism 2 is arranged on the frame 1, and the take-up mechanism 2 comprises a rotatable drum 21 and a driving assembly 22 for driving the drum 21 to rotate, and the drum 21 is wound with a lifting line 23.
[0027] The guide mechanism 3 is arranged on the frame 1 and above the drum 21, and the guide mechanism 3 comprises a cycloid arm 31 rotatably connected with the frame 1, and a first cycloid roller 32 and a second cycloid roller 33 rotatably arranged on the cycloid arm 31; wherein the lifting line 23 is wound around the first cycloid roller 32 and the second cycloid roller 33 in sequence.
[0028] In the present application, the installation can be performed in a normal manner, i.e. the guide mechanism 3 is above the drum 21, and the lifting line 23 on the drum 21 is wound around the first cycloid roller 32 and the second cycloid roller 33 from above to achieve the purpose of lifting the weight, or the installation can be performed in a reverse manner, i.e. the guide mechanism 3 is below the drum 21, and the lifting line 23 on the drum 21 is wound around the first cycloid roller 32 from below and then around the second cycloid roller 33 from above, thereby achieving the purpose of lifting the weight, and the installation manner and working manner are diversified, which can be flexibly applied to different stage scenes to improve the use reliability.
[0029] Specifically, the frame 1 comprises a base 11 and a support plate 12, and the base 11 and the support plate 12 are in an "L" type structure, the take-up mechanism 2 is arranged on the base 11, and the guide mechanism 3 is arranged on the support plate 12. For the case that the space above the stage is limited or the stage has a hollow top plate, the base 11 can be fixed above the hollow top plate, without occupying the space above the stage; for the case that the frame 1 cannot be installed above the top plate, the frame 1 can be hung upside down on the top plate, i.e. the base 11 is fixed with the bottom of the top plate, which can also be used.
[0030] The driving assembly 22 in the present application embodiment adopts a speed reducer, which can accurately control the length of the lifting line 23 wound on the drum 21.
[0031] In some embodiments, the guide mechanism 3 comprises two cycloid arms 31, which are arranged in a horizontal direction and are spaced apart, and a first cycloid roller 32 and a second cycloid roller 33 are rotatably arranged between the two cycloid arms 31.
[0032] In the present application, the first cycloid roller 32 and the second cycloid roller 33 are arranged between the two cycloid arms 31, and the two cycloid arms 31 have a limiting effect on the hanging line 23, preventing the hanging line 23 from disengaging from the first cycloid roller 32 or the second cycloid roller 33, thereby improving safety.
[0033] Specifically, the distance between the two cycloid arms 31 is slightly greater than the axial length of the first cycloid roller 32 and the second cycloid roller 33, so that the two cycloid arms 31 can limit the hanging line 23, and the first cycloid roller 32 and the second cycloid roller 33 can smoothly roll, while preventing the hanging line 23 from being stuck in the gap between the first cycloid roller 32 or the second cycloid roller 33 and the cycloid arm 31.
[0034] In some embodiments, the guide mechanism 3 further comprises two coaxial cycloid shafts 34, and the two cycloid arms 31 are rotatably connected to the frame 1 through the two cycloid shafts 34.
[0035] In the present application, the two cycloid arms 31 are rotatably connected to the frame 1 through the two cycloid shafts 34, so that the first cycloid roller 32 at the end of the cycloid arm 31 has sufficient swing range.
[0036] In some embodiments, the first cycloid roller 32 is arranged at one end of the cycloid arm 31 away from the cycloid shaft 34, and the second cycloid roller 33 is arranged at one end of the cycloid arm 31 adjacent to the cycloid shaft 34, and the swing distance of the first cycloid roller 32 along the axial direction of the drum 21 is greater than the length of the drum 21 along the axial direction.
[0037] In the present application, the hanging line 23 moves along the axial direction of the drum 21 when it is reeled or unreeled, and the cycloid arm 31 is rotatably connected to the frame 1, so that the first cycloid roller 21 swings with the hanging line 23, ensuring that the hanging line 23 is in a tension state between the first cycloid roller 32 and the drum 21, and effectively preventing the hanging line 23 from being stuck when it is reeled or unreeled; when the hanging line 23 moves to one end of the drum 21 along the axial direction, the first cycloid roller 32 can still be located above or below the drum 21, ensuring that the hanging line 23 between the first cycloid roller 32 and the drum 21 can be guided.
[0038] Specifically, the second cycloid roller 33 is adjacent to the cycloid shaft 34, and the second cycloid roller 33 is used to output the hanging line 23 for lifting the heavy object, so that the hanging line 23 cannot shake between the second cycloid roller 33 and the heavy object, ensuring the stability and safety of the lifting.
[0039] In some embodiments, the two cycloid shafts 34 are respectively provided with a first through hole along the axial direction of the cycloid shafts 34, and the center line of the first through hole is tangent to the second cycloid roller 33 and located on one side of the drum 21.
[0040] In the present application, the wire 23 passes through the first through hole of the cycloid shaft 34, and the second cycloid roller 33 is tangent to the first through hole, so that the wire 23 can pass through the first through hole of the cycloid shaft 34 after passing around the second cycloid roller 33. No matter how the cycloid arm 31 rotates, the wire 23 passing around the second cycloid roller 33 is collinear with the center line of the first through hole, thereby ensuring the stability during lifting of the heavy object. Specifically, when the frame 1 is installed in the upright position, the wire 23 passes through the first through hole of one of the cycloid shafts 34, and when the frame 1 is installed in the inverted position, the wire 23 passes through the first through hole of the other cycloid shaft 34.
[0041] In some embodiments, the single-point hoist further comprises a wire turning mechanism 4, the wire turning mechanism 4 comprising a wire turning shaft 41 and a wire turning roller 42, the wire turning roller 42 being rotatably connected to the frame 1 through the wire turning shaft 41, the wire turning shaft 41 being coaxially arranged with the cycloid shaft 34, and the wire turning shaft being provided with a second through hole along the axial direction of the wire turning shaft, and the center line of the second through hole being tangent to the wire turning roller 42.
[0042] In the present application, the single-point hoist can be used alone, such as being used in parallel with multiple groups. When used in parallel, it is difficult to ensure that the single-point hoist is located directly above the lifting position. At this time, the wire turning roller 42 is used to turn the wire 23, so that the wire 23 can be inclined within a certain angular range, thereby increasing the radiation area of the wire 23 and allowing it to be applied to a wider range of stage scenes.
[0043] In some embodiments, the outer periphery of the first cycloid roller 32, the second cycloid roller 33, and the wire turning roller 42 is respectively provided with a wire guide ring groove.
[0044] In the present application, the wire 23 is located in the wire guide ring groove, which serves as a certain limiting function for the wire 23, preventing the wire 23 from coming off the wire guide ring groove during winding and unwinding.
[0045] In some embodiments, the outer surface of the drum 21 is provided with a guide groove 211 for winding the wire 23.
[0046] In the present application, the wire 23 is guided by the guide groove 211 on the outer surface of the drum 21, so that the wire 23 can be wound and unwound along the guide groove 211, ensuring that the wire 23 can be wound in an orderly manner on the drum 21.
[0047] The single-point lifting machine can be installed in a positive manner, that is, the guide mechanism 3 is located above the roller 21, and the lifting wire 23 on the roller 21 passes above the first and second cycloid pulleys 32 and 33 to achieve the purpose of lifting the weight. It can also be installed in a reverse manner, that is, the guide mechanism 3 is located below the roller 21, and the lifting wire 23 on the roller 21 passes below the first cycloid pulley 32 and then passes above the second cycloid pulley 33, thereby achieving the purpose of lifting the weight. The installation method and working method are diversified, and can be flexibly applied to different stage scenes, improving the use reliability.
[0048] It should be noted that the terms "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", and the like, as used herein mean that a particular embodiment can include a particular feature, structure, or characteristic, but every embodiment can not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, where a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of those skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described or illustrated.
[0049] It should be readily understood that "on", in the disclosure, is to be interpreted in the broadest relative terms reasonably possible, such that "on" means not only "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" includes not only the meaning of "above" or "over", but also the meaning of "above" or "over" without intermediate features or layers therebetween (i.e., directly on).
[0050] In addition, spatially relative terms, such as "under", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0051] It is to be noted that, in the present text, relational terms such as "first" and "second", and the like, can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.
Claims
1. A single point hoist characterized by, The single-point lifting machine comprises a frame (1), a winding and unwinding mechanism (2) arranged on the frame (1), the winding and unwinding mechanism (2) comprising a rotatable roller (21) and a driving assembly (22) for driving the roller (21) to rotate, the roller (21) being arranged with a lifting wire (23) wound thereon, and a guide mechanism (3) arranged on the frame (1) and located above the roller (21), the guide mechanism (3) comprising a cycloid arm (31) rotatably connected with the frame (1) and a first cycloid roller (32) and a second cycloid roller (33) rotatably arranged on the cycloid arm (31). The guide mechanism (3) comprises two cycloid arms (31) arranged in a horizontal direction and spaced apart, and the first cycloid roller (32) and the second cycloid roller (33) are rotatably arranged between the two cycloid arms (31), respectively. The guide mechanism (3) further comprises two coaxially arranged cycloid shafts (34), and the two cycloid arms (31) are rotatably connected with the frame (1) through the two cycloid shafts (34). The first cycloid roller (32) is arranged at one end of the cycloid arm (31) away from the cycloid shaft (34), the second cycloid roller (33) is arranged at one end of the cycloid arm (31) adjacent to the cycloid shaft (34), and the swing distance of the first cycloid roller (32) along the axial direction of the roller (21) is greater than the length of the roller (21) along the axial direction. The two cycloid shafts (34) are respectively provided with a first through hole along the axial direction thereof, the center line of the first through hole is tangentially arranged with the second cycloid roller (33), and the center line of the first through hole is located on one side of the roller (21).
2. A single point hoist as claimed in claim 1, wherein, The single-point lifting machine further comprises a wire turning mechanism (4), the wire turning mechanism (4) comprising a wire turning shaft (41) and a wire turning roller (42), the wire turning roller (42) being rotatably connected with the frame (1) through the wire turning shaft (41), the wire turning shaft (41) being coaxially arranged with the cycloid shaft (34), the wire turning shaft being provided with a second through hole along the axial direction thereof, and the center line of the second through hole being tangentially arranged with the wire turning roller (42).
3. A single point hoist as claimed in claim 2, characterised in that, The outer circumferential side of the first cycloid roller (32), the second cycloid roller (33) and the wire turning roller (42) is respectively provided with a wire guide ring groove.
4. A single point hoist as claimed in claim 3, wherein, The outer surface of the roller (21) is provided with a guide groove (211) for winding the lifting wire (23).
5. A single point hoist as claimed in claim 3, wherein, 6. A single point hoist as claimed in claim 5 wherein, 7. A single point hoist as claimed in claim 6, characterised in that, 8. A single point hoist as claimed in claim 1, wherein,