Lifting stage with protection function

Abstract

The utility model discloses a lifting stage with a protection function, belongs to the technical field of stages, and solves the problems that when a hydraulic cylinder is used for providing power for an existing stage, the power of the hydraulic cylinder is suddenly out of control, so that a stage body falls off easily, and safety risks are brought to performance personnel. Comprising a stage base, a lifting base, a lifting connecting assembly and an anti-falling protection assembly, and the lifting connecting assembly comprises a lifting connecting part and a one-way slow descending part; the lifting connecting assembly and the anti-falling protection assembly are arranged, the lifting connecting assembly comprises the lifting connecting part and the one-way slow descending part, and the lifting connecting part and the one-way slow descending part cooperate to achieve flexible adjustment of the height of the stage body. And the stage body can be limited in a one-way mode while the lifting base and the stage body are stably driven, a protection system formed by the one-way slow descending part and the anti-falling protection assembly can avoid the risk that the stage body suddenly falls to cause weightlessness to the performance personnel, and the safety of the performance personnel is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of stage technology, specifically relating to a lifting stage with protective functions. Background Technology

[0002] In modern performing arts events, large-scale conferences, and commercial celebrations, the stage, as the core display area, is constantly innovating and diversifying in its function and form. The lifting stage, as an important piece of equipment that can add visual effects and spatial variations to performances or events, has been widely used. Through the lifting stage, effects such as rapid switching of stage scenes, hiding and revealing actors or props, and creating spatial layouts of different heights and levels can be achieved, greatly enhancing the attractiveness and appeal of the performance.

[0003] Existing lifting stages still pose numerous safety hazards during use. Firstly, during the lifting process, mechanical malfunctions (such as motor failure, wear and tear on transmission components, etc.) or electrical faults (such as short circuits, control system malfunctions, etc.) may cause the stage to suddenly stop, rise or fall abnormally, or shake. In such cases, if a performance is taking place on stage, performers may fall and be injured; and if audience members are watching from the edge of the stage, they may also suffer accidental injuries due to the stage's instability.

[0004] Chinese patent CN218292977U discloses a lifting spring stage, including a fixed base with a spring device on top. A lifting upper frame is movably connected to the top of a scissor lift arm. The top of the spring device passes through the lifting upper frame and connects to a spring panel. A telescopic guide column is connected to the outer ring of the bottom of the spring panel. Power is provided by a hydraulic cylinder, causing the scissor lift arm to lift the upper frame. After the upper frame is raised, the spring panel will be in close contact with the upper frame. At the same time, the telescopic guide column passes through the guide column tube to prevent the spring panel from swinging, so that the performers can perform above while the stage remains stable. Secondly, when the stage is lowered to its lowest point, the top of the buffer spring in the spring device presses against the lower end of the spring panel, thus meeting the needs of disco performances. However, when the existing stage is powered by a hydraulic cylinder, a sudden loss of control of the hydraulic cylinder power can easily cause the main body of the stage to fall, posing a safety risk to the performers. To address the above problems, we propose a lifting stage with protective functions. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a lifting stage with protective functions. This solves the problem that when existing stages are powered by hydraulic cylinders, sudden loss of control of the hydraulic cylinder power can easily cause the main body of the stage to fall, posing a safety risk to performers.

[0006] This utility model is implemented as follows: a lifting stage with protective function, comprising:

[0007] The stage base is equipped with protective guide grooves and linkage positioning grooves.

[0008] A lifting base connected to a stage base, on which the stage body is detachably mounted;

[0009] A lifting connection assembly is disposed between the stage base and the lifting base, and the lifting connection assembly is used to connect and drive the stage base and the lifting base;

[0010] The lifting connection assembly includes a lifting connection part and a one-way slow descent part. The one-way slow descent part is disposed in the protective guide groove and is connected to the lifting connection part. It is used to provide slow descent protection for the lifting connection part and the lifting base.

[0011] A fall protection component is installed in a linkage positioning groove and is used to protect and limit the lifting connection part.

[0012] Preferably, the stage body includes:

[0013] Upper support plate;

[0014] The lower support is fixedly connected to the upper support plate, and the lower support is detachably connected to the lifting base through a connecting column.

[0015] An adjustable protective section is provided within the lower support.

[0016] Preferably, the adjustable protective part includes:

[0017] A drive motor is fixedly installed inside the lower support.

[0018] A linkage gear seat is fixedly connected to the output end of the drive motor, and the linkage gear seat is rotatably installed in the lower support seat;

[0019] At least one set of linkage gears, which are rotatably mounted in the lower support, and the linkage gears mesh with the linkage gear seat for transmission.

[0020] An externally threaded rod is fixedly connected to a linkage gear. An internally threaded sleeve is threaded onto the externally threaded rod. The end of the internally threaded sleeve away from the externally threaded rod passes through the upper support plate and is fixedly connected to a lifting guardrail.

[0021] Preferably, the lifting connection part includes:

[0022] At least one set of first support arms, the lower end of the first support arm is rotatably connected to the stage base, the upper end of the first support arm is hinged to an upper slide block, the upper slide block is slidably embedded in the lifting guide groove, the lifting guide groove is opened in the lifting base, and the lifting guide groove is also fixedly installed with a shock-absorbing spring, one end of the shock-absorbing spring is fixedly connected to the upper slide block;

[0023] At least one set of second support arms, the upper end of the second support arm is rotatably connected to the lifting base, the lower end of the second support arm is fixedly connected to a translation linkage seat, and protective support rods are fixedly connected to both sides of the translation linkage seat. The end of the protective support rod away from the translation linkage seat extends into the protective guide groove and is connected to the one-way slow descent part.

[0024] A connecting shaft is provided, with its two ends rotatably connected to the first support arm and the second support arm, respectively.

[0025] At least one set of drive cylinders, the drive cylinders are installed in the translation linkage seat, and the drive cylinders are used to drive the first support arm to move;

[0026] A drive coupling is hinged to the telescopic end of the drive cylinder, and a first support arm is fixedly connected to each of the two ends of the drive coupling.

[0027] Preferably, the unidirectional descent section includes:

[0028] A one-way ratchet, which is fixedly connected to the protective support rod, and at least one set of fixed ratchet teeth are fixedly installed on the one-way ratchet;

[0029] At least one set of movable ratchet teeth, the movable ratchet teeth are rotatably installed in the ratchet tooth mounting seat, the ratchet tooth mounting seat is fixedly connected to the stage base, the movable ratchet teeth mesh with the fixed ratchet teeth, the movable ratchet teeth are used to limit the fixed ratchet teeth in one direction, and a return torsion spring is fixedly connected to one side of the movable ratchet teeth, the return torsion spring is fixedly installed in the ratchet tooth mounting seat;

[0030] At least one set of anti-slip friction rollers, which are fixedly installed on the side wall of the movable ratchet.

[0031] Preferably, the fall protection component includes:

[0032] T-shaped sleeve, wherein the T-shaped sleeve is slidably sleeved on the sleeve positioning rod, the sleeve positioning rod is fixedly installed inside the stage base, and a return spring is sleeved on the sleeve positioning rod;

[0033] A linkage hinge rod, one end of which is hinged to the side wall of the T-shaped sleeve, and the other end of which is hinged to a pressing slide, which is slidably installed in the linkage positioning groove.

[0034] A fall arrestor seat is slidably installed in the linkage positioning groove. A set of driven pressing seats are symmetrically installed on both sides of the fall arrestor seat, and the driven pressing seats are slidably connected to the pressing slide.

[0035] A fall arrestor push rod, wherein the fall arrestor push rod is fixedly installed on the fall arrestor protection seat;

[0036] At least one set of first telescopic rods, the first telescopic rods are fixedly installed on the stage base, and the telescopic end of the first telescopic rods is fixedly connected to the fall protection seat;

[0037] An auxiliary protection unit is installed on the stage base and is connected to a fall arrestor.

[0038] Preferably, the auxiliary protection unit includes:

[0039] A lifting support rod, which is fixedly installed on a lifting connecting frame;

[0040] An upper extrusion seat is fixedly connected to a lifting connecting frame, and the upper extrusion seat is slidably connected to a lower extrusion seat, with the lower extrusion seat fixedly installed on a fall protection seat.

[0041] At least one set of second telescopic rods is fixedly installed on the stage base, and the telescopic end of the second telescopic rod is fixedly connected to the fall arrestor.

[0042] Compared with the prior art, the embodiments of this application have the following main advantages:

[0043] This utility model includes a lifting connection assembly and a fall protection assembly. The lifting connection assembly includes a lifting connection part and a one-way slow descent part. The lifting connection part and the one-way slow descent part work together to achieve flexible adjustment of the height of the stage body. It can also drive the lifting base and the stage body smoothly while limiting the stage body in one direction. This overcomes the problem of the stage body falling due to sudden loss of power of the lifting connection part. Moreover, the protective system formed by the one-way slow descent part and the fall protection assembly can avoid the risk of weightlessness to the performers caused by the sudden fall of the stage body, thus ensuring the safety of the performers.

[0044] This invention features an adjustable protective section, which consists of a drive motor, a linkage gear seat, a linkage gear, and an internal threaded sleeve. The drive motor, linkage gear seat, linkage gear, and internal threaded sleeve work together to achieve flexible and stable adjustment of the height of the lifting protective railing, thereby further enhancing the protective function of this invention and effectively reducing the risk of performers falling.

[0045] In this utility model, a one-way slow-descent part is provided, which consists of a one-way ratchet, a fixed ratchet, a movable ratchet, and a return torsion spring. The one-way ratchet, the fixed ratchet, the movable ratchet, and the return torsion spring work together to achieve one-way locking and limiting of the lifting base and the stage body, thereby enabling the slow-descent protection of the lifting base and the stage body when the drive cylinder is out of control.

[0046] This utility model includes a fall protection component, which consists of a T-shaped sleeve, a sleeve positioning rod, a fall protection seat, a compression slide, a driven compression seat, and an auxiliary protection part. The fall protection seat is fixedly provided with driven compression seats and lower compression seats on both sides and above. This allows the fall protection push rod to move quickly when the T-shaped sleeve and auxiliary protection part are impacted, so that the fall protection push rod stops and limits the translation linkage seat, further realizing the slow descent and stop of the stage body. Attached Figure Description

[0047] Figure 1 This is a structural schematic diagram of the lifting stage with protective function provided by this utility model.

[0048] Figure 2 This is an isometric drawing of a lifting stage with protective functions provided by this utility model.

[0049] Figure 3 This is the front view of the lifting stage with protective function provided by this utility model.

[0050] Figure 4 This is a schematic diagram of the structure of the stage body provided by this utility model.

[0051] Figure 5 This is a schematic diagram of the adjustable protective part provided by this utility model.

[0052] Figure 6 This is a structural schematic diagram of the lifting connection assembly provided by this utility model.

[0053] Figure 7 This is a three-dimensional structural diagram of the lifting connection component provided by this utility model.

[0054] Figure 8 This is a top view of the lifting connection assembly provided by this utility model.

[0055] Figure 9 yes Figure 6 A magnified schematic diagram of part A in the diagram.

[0056] Figure 10 This is a structural schematic diagram of the fall protection component provided by this utility model.

[0057] Figure 11This is a three-dimensional structural diagram of the fall protection component provided by this utility model.

[0058] In the diagram: 1-Stage base, 11-Protective guide groove, 12-Linkage positioning groove, 2-Lifting base, 21-Lifting guide groove, 3-Stage body, 31-Upper support plate, 32-Lower support seat, 33-Adjustable protective part, 331-Lifting protective railing, 332-Internal threaded sleeve, 333-External threaded rod, 334-Linkage gear, 335-Linkage gear seat, 336-Drive motor, 4-Lifting connection assembly, 41-Lifting connection part, 411-First support arm, 412-Second support arm, 413-Connecting shaft, 414-Upper slide seat, 415-Shock damping spring, 416-Translation linkage seat, 417-Drive cylinder, 418-Drive linkage 419-Protective support rod, 42-One-way slow descent part, 421-One-way ratchet, 422-Fixed ratchet, 423-Moving ratchet, 424-Anti-slip friction roller, 425-Ratchet mounting seat, 426-Reset torsion spring, 5-Fall protection assembly, 51-T-shaped sleeve, 52-Sleeve positioning rod, 53-Reset spring, 54-Extrusion slide, 55-Fall protection seat, 551-Driven extrusion seat, 552-Lower extrusion seat, 56-Fall protection push rod, 57-First telescopic rod, 58-Auxiliary protection part, 581-Lifting support rod, 582-Second telescopic rod, 583-Lifting connecting frame, 584-Upper extrusion seat, 59-Linkage hinge rod. Detailed Implementation

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0060] When existing stages are powered by hydraulic cylinders, sudden loss of control of the hydraulic cylinder power can easily cause the main stage 3 to fall, posing a safety risk to performers. To address this issue, we propose a lifting stage with protective functions. In short, the lifting stage with protective functions consists of a stage base 1, a lifting base 2, a lifting connection assembly 4, and a fall protection assembly 5. The lifting connection assembly 4 includes a lifting connection part 41 and a one-way slow-descent part 42. The one-way slow-descent part 42 is disposed in the protective guide groove 11 and is connected to the lifting connection part 41 to provide slow-descent protection for the lifting connection part 41 and the lifting base 2. This utility model includes a lifting connection component 4 and a fall protection component 5. The lifting connection component 4 includes a lifting connection part 41 and a one-way slow descent part 42. The lifting connection part 41 and the one-way slow descent part 42 work together to achieve flexible adjustment of the height of the stage body 3. While driving the lifting base 2 and the stage body 3 smoothly, the lifting connection part 41 can also limit the stage body 3 in one direction, overcoming the problem of the stage body 3 falling due to sudden loss of power of the lifting connection part 41. Furthermore, the protective system formed by the one-way slow descent part 42 and the fall protection component 5 can avoid the risk of weightlessness to the performers caused by the sudden fall of the stage body 3, thus ensuring the safety of the performers.

[0061] This utility model embodiment provides a lifting stage with protective functions, such as Figures 1-3 As shown, the lifting stage with protective functions includes:

[0062] Stage base 1, with a protective guide groove 11 and a linkage positioning groove 12 provided on the stage base 1;

[0063] A lifting base 2 connected to the stage base 1, on which the stage body 3 is detachably installed;

[0064] It should be noted that the stage base 1 and the lifting base 2 can both be hollow rectangular frames or rectangular seats. The stage base 1 can be fixedly installed in the theater base or pit. The protective guide groove 11 and the linkage positioning groove 12 can be hollow rectangular grooves. There are two sets of protective guide grooves 11 symmetrically arranged.

[0065] A lifting connection assembly 4 is disposed between the stage base 1 and the lifting base 2. The lifting connection assembly 4 is used to connect and drive the stage base 1 and the lifting base 2.

[0066] The lifting connection assembly 4 includes a lifting connection part 41 and a one-way slow descent part 42. The one-way slow descent part 42 is disposed in the protective guide groove 11 and is connected to the lifting connection part 41. It is used to provide slow descent protection for the lifting connection part 41 and the lifting base 2.

[0067] Fall protection component 5 is installed in the linkage positioning groove 12 and is used to protect and limit the lifting connection part 41.

[0068] This utility model includes a lifting connection component 4 and a fall protection component 5. The lifting connection component 4 includes a lifting connection part 41 and a one-way slow descent part 42. The lifting connection part 41 and the one-way slow descent part 42 work together to achieve flexible adjustment of the height of the stage body 3. While driving the lifting base 2 and the stage body 3 smoothly, the lifting connection part 41 can also limit the stage body 3 in one direction, overcoming the problem of the stage body 3 falling due to sudden loss of power of the lifting connection part 41. Furthermore, the protective system formed by the one-way slow descent part 42 and the fall protection component 5 can avoid the risk of weightlessness to the performers caused by the sudden fall of the stage body 3, thus ensuring the safety of the performers.

[0069] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the stage body 3 includes:

[0070] Upper support plate 31;

[0071] The lower support 32 is fixedly connected to the upper support plate 31, and the lower support 32 is detachably connected to the lifting base 2 through the connecting column. The upper support and the lower support 32 can be fixedly connected by fastening bolts or buckles. The lower support 32 and the connecting column are coaxially assembled. Both the upper support plate 31 and the lower support 32 can be round seats or round plates.

[0072] Adjustable protective part 33 is disposed inside the lower support 32.

[0073] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the adjustable protective part 33 includes:

[0074] A drive motor 336 is fixedly installed in the lower support 32. The drive motor 336 can be a servo motor or a three-phase asynchronous motor. The drive motor 336 is fixedly installed in the lower support 32 by clamps or rivets.

[0075] A linkage gear seat 335 is fixedly connected to the output end of the drive motor 336. The linkage gear seat 335 is rotatably installed in the lower support seat 32. The linkage gear seat 335 is rotatably connected to the lower support seat 32 by rollers or bearings. The center position of the linkage gear seat 335 is fixedly connected to the output end of the drive motor 336 by interference fit. A linkage gear 334 is circumferentially arranged on the side wall of the linkage gear seat 335.

[0076] At least one set of linkage gears 334 are rotatably mounted in the lower support 32. The linkage gears 334 mesh with the linkage gear seat 335 for transmission. The number of linkage gears 334 can be 3-8 sets, and the linkage gears 334 can be rotatably connected to the lower support 32 by bearings.

[0077] An external threaded rod 333 is fixedly connected to the linkage gear 334. An internal threaded sleeve 332 is threaded on the external threaded rod 333. The end of the internal threaded sleeve 332 away from the external threaded rod 333 passes through the upper support plate 31 and is fixedly connected to the lifting guardrail 331.

[0078] In this embodiment, the lower end of the external threaded rod 333 is welded or riveted to the linkage gear 334, the external threaded rod 333 and the internal threaded sleeve 332 are connected by threads, the outer wall of the internal threaded sleeve 332 is slidably connected to the upper support plate 31, and the lifting guardrail 331 can be a ring or a circular frame structure.

[0079] When the height of the lifting guardrail 331 needs to be adjusted during operation, the drive motor 336 is turned on. The start of the drive motor 336 drives the linkage gear seat 335 to rotate, the linkage gear seat 335 drives the linkage gear 334 to rotate, and the linkage gear 334 drives the external threaded rod 333 to rotate. This causes the external threaded rod 333 to drive the internal threaded sleeve 332 and the lifting guardrail 331 to move up and down, thereby realizing the adjustment of the height of the lifting guardrail 331.

[0080] In this utility model, an adjustable protective part 33 is provided. The adjustable protective part 33 is composed of a drive motor 336, a linkage gear seat 335, a linkage gear 334, and an internal threaded sleeve 332. The drive motor 336, the linkage gear seat 335, the linkage gear 334, and the internal threaded sleeve 332 work together to achieve flexible and stable adjustment of the height of the lifting protective railing 331, thereby further enhancing the protective function of this utility model and effectively reducing the risk of performers falling.

[0081] In a further preferred embodiment of this utility model, such as Figures 6-8 As shown, the lifting connection part 41 includes:

[0082] At least one set of first support arms 411, the lower end of the first support arm 411 is rotatably connected to the stage base 1, the upper end of the first support arm 411 is hinged to an upper slide block 414, the upper slide block 414 is slidably embedded in the lifting guide groove 21, the lifting guide groove 21 is opened in the lifting base 2, and the lifting guide groove 21 is also fixedly installed with a shock-absorbing spring 415, one end of the shock-absorbing spring 415 is fixedly connected to the upper slide block 414;

[0083] It should be noted that there are two sets of the first support arms 411, and the first support arms 411 are set at an angle. The lower end of the first support arm 411 is rotatably connected to the stage base 1 through a bearing. The lifting guide groove 21 can be a rectangular groove or a square groove. The shock-absorbing spring 415 is fixedly installed in the lifting guide groove 21 by welding or riveting. The setting of the shock-absorbing spring 415 realizes the shock-absorbing protection of the upper slide 414, and thus indirectly realizes the shock-absorbing protection of the lifting base 2.

[0084] At least one set of second support arms 412, the upper end of the second support arm 412 is rotatably connected to the lifting base 2, the lower end of the second support arm 412 is fixedly connected to a translation linkage seat 416, and protective support rods 419 are fixedly connected to both sides of the translation linkage seat 416 respectively. The end of the protective support rod 419 away from the translation linkage seat 416 extends into the protective guide groove 11 and is connected to the one-way slow descent part 42.

[0085] The number of the second support arm 412 can also be set to two sets. The upper end of the second support arm 412 is rotatably connected to the lifting base 2 through a bearing. The translation linkage seat 416 can be a rectangular seat or a "T" shaped seat structure. The two sides of the translation linkage seat 416 are fixedly connected to the protective support rod 419 by riveting or welding.

[0086] A connecting shaft 413 is provided, and its two ends are rotatably connected to the first support arm 411 and the second support arm 412, respectively.

[0087] At least one set of drive cylinders 417 are installed in the translation linkage seat 416, and the drive cylinders 417 are used to drive the first support arm 411 to move.

[0088] A drive connecting seat 418 is hinged to the telescopic end of the drive cylinder 417, and the two ends of the drive connecting seat 418 are respectively fixedly connected to the first support arm 411.

[0089] In this embodiment, the bottom of the drive cylinder 417 can be fixedly installed on the translation linkage seat 416 by riveting or tenoning. The telescopic end of the drive cylinder 417 is hinged to the drive connecting seat 418. The two ends of the drive connecting seat 418 are fixedly connected to the first support arm 411 by plugging or snapping.

[0090] When it is necessary to adjust the height of the stage body 3 during operation, the drive cylinder 417 is activated. The start of the drive cylinder 417 can drive the drive connecting seat 418 and the first support arm 411 to swing, thereby causing the first support arm 411 to drive the lifting base 2 and the stage body 3 to move up and down, thus realizing flexible adjustment of the height of the stage body 3.

[0091] In a further preferred embodiment of this utility model, such as Figure 9As shown, the unidirectional descent section 42 includes:

[0092] One-way ratchet 421, which is fixedly connected to the protective support rod 419, and at least one set of fixed ratchet teeth 422 are fixedly installed on the one-way ratchet 421;

[0093] At least one set of movable ratchet teeth 423 are rotatably mounted in ratchet mounting base 425. The ratchet mounting base 425 is fixedly connected to the stage base 1. The movable ratchet teeth 423 mesh with the fixed ratchet teeth 422. The movable ratchet teeth 423 are used to limit the fixed ratchet teeth 422 in one direction. A return torsion spring 426 is fixedly connected to one side of the movable ratchet teeth 423. The return torsion spring 426 is fixedly mounted in the ratchet mounting base 425.

[0094] At least one set of anti-slip friction rollers 424 are fixedly installed on the side wall of the movable ratchet 423.

[0095] In this embodiment, the one-way ratchet 421 is fixedly connected to the protective support rod 419 by plugging or riveting. The fixed ratchet 422 can be installed counterclockwise circumferentially and is fixedly connected to the side wall of the one-way ratchet 421 by welding or riveting. The movable ratchet 423 can be an arc-shaped or "L"-shaped ratchet structure and is rotatably connected to the ratchet mounting seat 425 through a bearing. The reset torsion spring 426 can be sleeved on the outer wall of the bearing. The ratchet mounting seat 425 is fixedly connected to the stage base 1 by snap-fit ​​or bolt connection. The anti-slip friction roller 424 can be fixedly installed on the side wall of the movable ratchet 423 by tenon or snap-fit ​​connection.

[0096] During operation, when the drive cylinder 417 is activated, it can drive the drive connecting seat 418 and the first support arm 411 to swing. The first support arm 411 then drives the second support arm 412 to move. At this time, the second support arm 412 drives the translation linkage seat 416 and the protective support rod 419 to move closer to the vertical center axis of the stage base 1. At this time, the movable ratchet 423 guides the fixed ratchet 422 and does not limit the fixed ratchet 422 or the fixed ratchet wheel. When the second support arm 412 drives the translation linkage seat 416 and the protective support rod 419 away from the vertical center axis of the stage base 1, the movable ratchet 423 engages and locks the fixed ratchet 422 and limits the fixed ratchet 422 and the fixed ratchet wheel, thereby realizing the one-way locking and limiting of the lifting base 2 and the stage body 3.

[0097] In this utility model, a one-way slow-descent part 42 is provided. The one-way slow-descent part 42 is composed of a one-way ratchet 421, a fixed ratchet 422, a movable ratchet 423, and a return torsion spring 426. The one-way ratchet 421, the fixed ratchet 422, the movable ratchet 423, and the return torsion spring 426 work together to achieve one-way locking and limiting of the lifting base 2 and the stage body 3, so as to provide slow-descent protection for the lifting base 2 and the stage body 3 when the drive cylinder 417 is out of control.

[0098] In a further preferred embodiment of this utility model, such as Figures 10-11 As shown, the fall protection component 5 includes:

[0099] T-shaped sleeve 51, the T-shaped sleeve 51 is slidably sleeved on the sleeve positioning rod 52, the sleeve positioning rod 52 is fixedly installed in the stage base 1, and a return spring 53 is sleeved on the sleeve positioning rod 52.

[0100] The T-shaped sleeve 51 is hollow inside, and the inner wall of the T-shaped sleeve 51 is polished. The sleeve positioning rod 52 is fixed in the stage base 1 by plugging or riveting. The reset spring 53 provides buffer protection for the T-shaped sleeve 51.

[0101] Linkage hinge rod 59, one end of which is hinged to the side wall of T-shaped sleeve 51, and the other end of which is hinged to a pressing slide 54, which is slidably installed in the linkage positioning groove 12.

[0102] A fall arrestor 55 is slidably installed in the linkage positioning groove 12. A set of driven pressing seats 551 are symmetrically installed on both sides of the fall arrestor 55. The driven pressing seats 551 are slidably connected to the pressing slide 54.

[0103] Fall protection push rod 56, which is fixedly installed on fall protection base 55.

[0104] It should be noted that there are two sets of symmetrically arranged linkage hinge rods 59, and the linkage hinge rods 59 are symmetrically arranged. The extrusion slide 54 can be a triangular plate or triangular seat structure. The side of the extrusion slide 54 that is close to the driven extrusion seat 551 is provided with a polished bevel. The driven extrusion seat 551 is fixedly installed in the fall protection seat 55 by welding or riveting. The fall protection push rod 56 is fixedly installed in the fall protection seat 55 by plugging or welding.

[0105] At least one set of first telescopic rods 57, the first telescopic rods 57 are fixedly installed on the stage base 1, the telescopic end of the first telescopic rods 57 is fixedly connected to the fall protection seat 55, the first telescopic rods 57 can be hydraulic telescopic rods or spring telescopic rods, and the telescopic end of the first telescopic rods 57 is fixedly connected to the fall protection seat 55 by riveting or snapping.

[0106] An auxiliary protection unit 58 is provided on the stage base 1 and is connected to a fall protection seat 55.

[0107] This utility model includes a fall protection component 5, which consists of a T-shaped sleeve 51, a sleeve positioning rod 52, a fall protection seat 55, a compression slide 54, a driven compression seat 551, and an auxiliary protection part 58. The driven compression seat 551 and the lower compression seat 552 are fixedly installed on both sides and the top of the fall protection seat 55, so that when the T-shaped sleeve 51 and the auxiliary protection part 58 are impacted, the fall protection push rod 56 can be quickly driven to move, so that the fall protection push rod 56 stops and limits the translation linkage seat 416, and further realizes the slow descent and stop of the stage body 3.

[0108] In this embodiment, the auxiliary protection unit 58 includes:

[0109] The lifting support rod 581 is fixedly installed on the lifting connecting frame 583. The lifting support rod 581 is used to support the stage body 3. The lifting support rod 581 can be a flexible square rod or a round rod.

[0110] The upper extrusion seat 584 is fixedly connected to the lifting connecting frame 583. The upper extrusion seat 584 is slidably connected to the lower extrusion seat 552. The lower extrusion seat 552 is fixedly installed on the fall protection seat 55.

[0111] At least one set of second telescopic rods 582 are fixedly installed on the stage base 1, and the telescopic end of the second telescopic rods 582 is fixedly connected to the fall protection seat 55.

[0112] It should be noted that the lifting support rod 581 is fixedly installed on the lifting connecting frame 583 by means of threaded connection or plug-in connection. The lifting connecting frame 583 is slidably connected to the stage base 1. The second telescopic rod 582 can be a spring telescopic rod or a hydraulic telescopic rod. The second telescopic rod 582 is fixedly installed on the stage base 1 by means of welding or riveting. The upper extrusion seat 584 and the lower extrusion seat 552 are slidably connected, and the side of the upper extrusion seat 584 and the lower extrusion seat 552 that are close to each other are also provided with polished bevels.

[0113] When the second support arm 412 moves the translation linkage seat 416 and the protective support rod 419 away from the vertical central axis of the stage base 1, the translation linkage seat 416 pushes the T-shaped sleeve 51 to move along the sleeve positioning rod 52, thereby causing the T-shaped sleeve 51 to move the linkage hinge rod 59 and the pressing slide 54. The pressing slide 54 presses the driven pressing seat 551 and the fall protection seat 55 to move. The fall protection seat 55 drives the fall protection push rod 56 to stop and limit the translation linkage seat 416, and in the flat As the moving linkage seat 416 and the protective support rod 419 move away from the vertical central axis of the stage base 1, the stage body 3 moves downward. The lifting support rod 581 provides limiting support for the stage body 3, which in turn causes the stage body 3 to move downward along with the lifting support rod 581 and the upper pressing seat 584. The upper pressing seat 584 presses against the lower pressing seat 552, which in turn causes the lower pressing seat 552 to move along with the fall protection seat 55. This further stops and limits the movement of the moving linkage seat 416 by the fall protection push rod 56.

[0114] In summary, this utility model provides a lifting stage with protective functions. The utility model includes a lifting connection component 4 and a fall protection component 5. The lifting connection component 4 includes a lifting connection part 41 and a one-way slow-descent part 42. The lifting connection part 41 and the one-way slow-descent part 42 work together to achieve flexible adjustment of the height of the stage body 3. While smoothly driving the lifting base 2 and the stage body 3, it also provides one-way limit to the stage body 3, overcoming the problem of the stage body 3 falling due to sudden loss of power control of the lifting connection part 41. Furthermore, the protective system formed by the one-way slow-descent part 42 and the fall protection component 5 can prevent the risk of weightlessness to performers caused by a sudden fall of the stage body 3, ensuring the safety of the performers.

[0115] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0116] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A lift stage having a protection function, characterized by, The utility model provides a stage lifting device, including: Stage pedestal, the stage pedestal is equipped with protective guide groove and linkage positioning groove; Lifting pedestal connected with stage pedestal, stage main body is detachably installed on lifting pedestal; Lifting connection assembly, lifting connection assembly is arranged between stage pedestal and lifting pedestal, and lifting connection assembly is used for connecting and driving stage pedestal and lifting pedestal; Lifting connection assembly includes lifting connection part and one-way slow descending part, one-way slow descending part is arranged in protective guide groove, one-way slow descending part is connected with lifting connection part, and one-way slow descending part is used for slow descending protection to lifting connection part and lifting pedestal; Anti-falling protection assembly, anti-falling protection assembly is installed in linkage positioning groove, and anti-falling protection assembly is used for protection limit to lifting connection part.

2. The stage with the protection function according to claim 1, wherein: The stage main body includes: Upper support plate; Lower support seat, lower support seat is fixedly connected between upper support plate, and lower support seat is detachably connected between lifting pedestal through connecting column; Adjustable protection part, adjustable protection part is arranged in lower support seat.

3. The stage according to claim 2, wherein: The adjustable protection part includes: Driving motor, driving motor is fixedly installed in lower support seat; Linkage gear holder fixedly connected with driving motor output end, linkage gear holder is rotatably installed in lower support seat; At least a group of linkage gear, linkage gear is rotatably installed in lower support seat, and linkage gear is meshed with linkage gear holder and is driven; External thread rod fixedly connected with linkage gear, internal thread sleeve is threadedly sleeved on external thread rod, one end of internal thread sleeve away from external thread rod penetrates upper support plate, and lifting guardrail is fixedly connected.

4. The stage according to any one of claims 1 to 3, wherein: The lifting connection part includes: At least a group of first support arm, lower end of first support arm is rotatably connected with stage pedestal, upper end of first support arm is hingedly connected with upper sliding seat, upper sliding seat is slidably embedded in lifting guide groove, lifting guide groove is arranged in lifting pedestal, and damping spring is also fixedly installed in lifting guide groove, one end of damping spring is fixedly connected with upper sliding seat; At least a group of second support arm, upper end of second support arm is rotatably connected with lifting pedestal, and lower end of second support arm is fixedly connected with translation linkage seat, the both sides of translation linkage seat are fixedly connected with protection support rod respectively, one end of protection support rod away from translation linkage seat extends to protective guide groove, and protection support rod is connected with one-way slow descending part; Connecting pivot, connecting pivot is rotatably connected with first support arm and second support arm respectively.

5. The stage according to claim 4, wherein: The lifting connection part further includes: At least a group of driving air cylinder, driving air cylinder is installed in translation linkage seat, and driving air cylinder is used for driving first support arm to move; Driving connecting seat hingedly connected with telescopic end of driving air cylinder, the both ends of driving connecting seat are fixedly connected with first support arm respectively.

6. The stage according to claim 4, wherein: The one-way slow descending part includes: One-way ratchet, one-way ratchet is fixedly connected with protection support rod, and at least a group of fixed ratchet teeth are fixedly installed on one-way ratchet; At least a group of movable ratchet teeth, movable ratchet teeth are rotatably installed in ratchet mounting seat, ratchet mounting seat is fixedly connected with stage pedestal, movable ratchet teeth are meshed with fixed ratchet teeth, movable ratchet teeth are used for one-way limit to fixed ratchet teeth, one side of movable ratchet teeth is fixedly connected with reset torsion spring, and reset torsion spring is fixedly installed in ratchet mounting seat; At least one set of anti-skid friction rollers are fixedly installed on the side wall of the movable ratchet.

7. The stage according to claim 1, wherein: The anti-falling protection assembly comprises: A T-shaped sleeve is slidably sleeved on a sleeve positioning rod, the sleeve positioning rod is fixedly installed in the stage base, and a return spring is sleeved on the sleeve positioning rod; A linkage hinge rod is hingedly connected to the side wall of the T-shaped sleeve at one end, and an extrusion sliding seat is hingedly connected to the other end of the linkage hinge rod, and the extrusion sliding seat is slidably installed in a linkage positioning groove; An anti-falling protection seat is slidably installed in the linkage positioning groove, and a set of driven extrusion seats is symmetrically installed on both sides of the anti-falling protection seat, and the driven extrusion seats are slidably connected with the extrusion sliding seat; An anti-falling push rod is fixedly installed on the anti-falling protection seat.

8. The stage according to claim 7, wherein: The anti-falling protection assembly further comprises: At least one set of first telescopic rods are fixedly installed on the stage base, and the telescopic ends of the first telescopic rods are fixedly connected with the anti-falling protection seat; An auxiliary protection part is arranged on the stage base, and the auxiliary protection part is connected with the anti-falling protection seat.

9. The stage according to claim 8, wherein: The auxiliary protection part comprises: A lifting support rod is fixedly installed on a lifting connecting frame; An upper extrusion seat is fixedly connected with the lifting connecting frame, and the upper extrusion seat is slidably connected with a lower extrusion seat, and the lower extrusion seat is fixedly installed on the anti-falling protection seat; At least one set of second telescopic rods are fixedly installed on the stage base, and the telescopic ends of the second telescopic rods are fixedly connected with the anti-falling protection seat.

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