CN220487219U - Lifting stage with safety protection device - Google Patents

Abstract

The utility model discloses a lifting stage with a safety protection device, which comprises a bottom plate, wherein a carrier plate is arranged right above the bottom plate, a lifting mechanism is arranged between the bottom plate and the carrier plate, the upper surface of the carrier plate is fixedly connected with a protection fence, the front and the rear of the protection fence are symmetrically provided with guide grooves, the interiors of the two guide grooves are respectively and slidably connected with a sliding door, the lower surfaces of the two sliding doors are respectively and fixedly connected with racks, the lower surfaces of the carrier plate are respectively and longitudinally symmetrically connected with ball screws, and the lifting stage with the safety protection device can move downwards when the carrier plate is provided with the two sliding doors capable of being automatically opened and closed, so that after the lower ends of the two ball screws are respectively inserted into the interiors of the two nuts, the two racks are connected with the ball screws through threads, the two gears are driven to rotate, the two sliding doors are respectively driven to synchronously move outwards, the two sliding doors are opened, and a stage worker can conveniently move in and out of the protection fence from the space between the two sliding doors.

Description

Lifting stage with safety protection device

Technical Field

The utility model belongs to the technical field of stages, and particularly relates to a lifting stage with a safety protection device.

Background

At present, most public activities such as various propaganda activities, weddings and celebration activities can use a stage when building a place, the traditional stage heights are constant, the limitation is large, the stage heights can not be adjusted according to the actual number of people on a large-scale performance site such as a concert, so that all people can be ensured to see, and meanwhile, the stage functions are single.

The utility model with the authorized publication number of CN214835150U provides a lifting stage with a safety protection device, and is provided with an electric control lifting frame, so that the lifting stage can be driven to stably rise, the height of the stage can be adjusted according to the number of people actually sitting, the practicability is higher, and the lifting stage is suitable for social popularization and use.

However, in the above patent, the upper surface of the lifting platform is provided with the protective fence, so that the personnel are protected from falling off the lifting platform, however, the common protective fence door plate does not have the automatic opening and closing functions, when more personnel are on the lifting platform, the movable space of the personnel is small, the action of opening and closing the protective fence door plate is easy to be blocked, and the lifting stage is inconvenient to move, and meanwhile, in the above patent, the lifting stage with the safety protection device is provided.

Disclosure of Invention

The present utility model is directed to a lifting stage with a safety device, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lifting stage with safety device, includes the bottom plate, be equipped with the support plate directly over the bottom plate, and be equipped with elevating system between bottom plate and the support plate, the last fixed surface of support plate is connected with the protection rail, the guide way has been seted up to the front and the rear symmetry of protection rail, two equal sliding connection in inside of guide way has the sliding door, and the equal fixedly connected with rack of lower surface of two sliding doors, the lower surface front and back symmetry rotation of support plate is connected with ball screw, two equal fixedly connected with gear of circumference outer wall of ball screw, and two gears mesh with two racks respectively, symmetrical fixedly connected with nut around the upper surface of bottom plate passes through the bracing piece.

Preferably, the lower surface fixedly connected with of support plate extends the festival, and extends the festival and be equipped with four altogether, and the lower extreme of four extension festival is all rotated and is connected with the universal wheel, the logical groove has all been seted up to the position that is located the universal wheel under in the bottom plate.

Preferably, the lifting mechanism comprises two cross hinge frames hinged between the upper surface of the bottom plate and the lower surface of the carrier plate, two cross hinge frames are symmetrically arranged front and back, a linkage rod is fixedly connected between the two cross hinge frames in an up-down symmetrical mode, guide frames are sleeved on the outer circumferential walls of the two linkage rods, and the two groups of guide frames are respectively and fixedly connected to the upper surface of the bottom plate and the lower surface of the carrier plate.

Preferably, the lifting mechanism further comprises electric telescopic rods hinged to the outer walls of the cross hinge frames, and the electric telescopic rods are four in number.

Preferably, the top of the bottom plate is provided with a sliding groove, the lower ends of the two sliding doors are located in the sliding groove, the bottom of the bottom plate is provided with positioning grooves in a front-back symmetrical mode, the upper ends of the two ball screws are located in the two positioning grooves respectively, and the section of each positioning groove is of a T-shaped structure.

Preferably, two opposite sides of the sliding door are fixedly connected with permanent magnets, and the two permanent magnets are attracted.

Preferably, the inner wall fixedly connected with controller of protection rail, four electric telescopic handle all with controller electric connection.

Compared with the prior art, the utility model has the beneficial effects that:

(1) This elevating stage with safety device through setting up two automatically opening and close move the door, can be when the support plate downwardly moving for after the lower extreme of two ball screw inserts the inside of two nuts respectively, through nut and ball screw's threaded connection, drive two gear rotations, make two racks drive two respectively and move the door and move synchronous outside to remove, and then open two and move the door, make things convenient for stage staff to move the protection rail from two and move between the door.

(2) This elevating stage with safety device through setting up the universal wheel, can be at the carrier plate downwardly moving for four universal wheels remove the below of bottom plate through four logical grooves respectively after, four universal wheels touch the ground, lift the bottom plate off ground, be convenient for remove this elevating stage.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a sliding door according to the present utility model;

fig. 4 is an enlarged view of the structure of fig. 2 a according to the present utility model.

In the figure: 1. a bottom plate; 2. a carrier plate; 3. a protective fence; 4. a guide groove; 5. a sliding door; 6. a rack; 7. a ball screw; 8. a gear; 9. a nut; 10. a support rod; 11. a permanent magnet; 12. a chute; 13. a positioning groove; 14. an extension joint; 15. a universal wheel; 16. a through groove; 17. a cross hinge frame; 18. an electric telescopic rod; 19. a linkage rod; 20. a guide frame; 21. and a controller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a lifting stage with a safety protection device, which comprises a bottom plate 1, a carrier plate 2 is arranged right above the bottom plate 1, a lifting mechanism is arranged between the bottom plate 1 and the carrier plate 2, a protection fence 3 is fixedly connected to the upper surface of the carrier plate 2, guide grooves 4 are symmetrically arranged on the front and rear surfaces of the protection fence 3, sliding doors 5 are slidably connected to the inner parts of the two guide grooves 4, racks 6 are fixedly connected to the lower surfaces of the two sliding doors 5, ball screws 7 are symmetrically and rotationally connected to the lower surface of the carrier plate 2, gears 8 are fixedly connected to the circumferential outer walls of the two ball screws 7, the two gears 8 are meshed with the two racks 6 respectively, and nuts 9 are symmetrically and fixedly connected to the upper surface of the bottom plate 1 through support rods 10.

In this embodiment, preferably, the lower surface of the carrier plate 2 is fixedly connected with extension joints 14, four extension joints 14 are provided, the lower ends of the four extension joints 14 are all rotationally connected with universal wheels 15, through grooves 16 are formed in positions, located right below the universal wheels 15, in the bottom plate 1, when the carrier plate 2 moves downwards, the four universal wheels 15 move to the lower side of the bottom plate 1 through the four through grooves 16 respectively, the four universal wheels 15 touch the ground, the bottom plate 1 is lifted off the ground, and the lifting stage is convenient to move.

In this embodiment, preferably, the lifting mechanism includes two cross hinge frames 17 hinged between the upper surface of the bottom plate 1 and the lower surface of the carrier plate 2, two cross hinge frames 17 are symmetrically arranged front and back, two cross hinge frames 17 are fixedly connected with linkage rods 19 vertically symmetrically, guide frames 20 are respectively sleeved on the circumferential outer walls of the two linkage rods 19, two groups of guide frames 20 are respectively and fixedly connected to the upper surface of the bottom plate 1 and the lower surface of the carrier plate 2, the lifting mechanism further includes four electric telescopic rods 18 hinged on the outer walls of the cross hinge frames 17, and the electric telescopic rods 18 are provided with four electric telescopic rods, when the four electric telescopic rods 18 synchronously shrink, the two cross hinge frames 17 synchronously stretch to drive the carrier plate 2 to move upwards, and when the four electric telescopic rods 18 synchronously stretch, the two cross hinge frames 17 synchronously shrink to drive the carrier plate 2 to move downwards, so as to adjust the height of the carrier plate 2.

In this embodiment, preferably, the top of the bottom plate 1 is provided with the sliding groove 12, the lower ends of the two sliding doors 5 are all located in the sliding groove 12, the bottom of the bottom plate 1 is provided with the positioning grooves 13 in a front-back symmetrical manner, the upper ends of the two ball screws 7 are respectively located in the two positioning grooves 13, the section of the positioning grooves 13 is of a T-shaped structure, the sliding groove 12 plays a guiding role on the two sliding doors 5, when the sliding doors 5 are impacted by external force, the possibility that the sliding doors 5 bend is reduced, and the positioning grooves 13 limit the ball screws 7 to move vertically so as to enable the ball screws 7 to rotate only.

In this embodiment, preferably, the opposite sides of the two sliding doors 5 are fixedly connected with permanent magnets 11, and the two permanent magnets 11 attract each other, so that when the height of the carrier plate 2 is unchanged, the possibility that the two sliding doors 5 are accidentally opened outwards is reduced.

In this embodiment, preferably, the controller 21 is fixedly connected to the inner wall of the protection fence 3, and the four electric telescopic rods 18 are electrically connected to the controller 21, so that the operation of the electric telescopic rods 18 can be controlled by the controller 21.

The working principle and the using flow of the utility model are as follows: when the device is used, stage staff stands on the upper surface of the carrier plate 2 to perform, the protective fence 3 and the two sliding doors 5 carry out whole-body enclosure on the staff, the staff is prevented from accidentally falling down the carrier plate 2, the staff controls the electric telescopic rods 18 to stretch and retract through the controller 21, the four electric telescopic rods 18 synchronously shrink, the two cross hinge frames 17 synchronously stretch and drive the carrier plate 2 to move upwards, the four electric telescopic rods 18 synchronously stretch and retract, the two cross hinge frames 17 synchronously shrink and drive the carrier plate 2 to move downwards, the height of the carrier plate 2 is adjusted, when the carrier plate 2 moves downwards, the lower ends of the two ball screw rods 7 are respectively inserted into the two nuts 9, the two ball screw rods 7 respectively drive the two gears 8 to rotate through the threaded connection of the nuts 9 and the ball screw rods 7, through the meshing transmission of gear 8 and rack 6 for two racks 6 drive two respectively and move door 5 and move the door 5 outward in step under the direction effect of guide way 4 and spout 12, and then open two and move door 5, stage staff can walk out guard rail 3 from between two and move door 5, staff on the main stage can move the inside of getting into guard rail 3 through two and move between the door 5, make carrier plate 2 move down further, make four universal wheels 15 remove to the below of bottom plate 1 through four logical grooves 16 respectively, four universal wheels 15 touch the ground, lift bottom plate 1 off the ground, be convenient for remove this lift stage, two ball screw 7 and two gears 8 reverse rotation when carrier plate 2 upwards, make two move door 5 self-closing.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Lifting stage with safety device, including bottom plate (1), its characterized in that: be equipped with carrier plate (2) directly over bottom plate (1), and be equipped with elevating system between bottom plate (1) and carrier plate (2), the last fixed surface of carrier plate (2) is connected with protection rail (3), guide slot (4) have been seted up to the front and the back symmetry of protection rail (3), two the inside of guide slot (4) is equal sliding connection has sliding door (5), and the equal fixedly connected with rack (6) of lower surface of two sliding doors (5), the equal fixedly connected with ball screw (7) of symmetry rotation around the lower surface of carrier plate (2), two the equal fixedly connected with gear (8) of circumference outer wall of ball screw (7), and two gears (8) mesh with two racks (6) respectively, the upper surface of bottom plate (1) is through symmetrical fixedly connected with nut (9) around bracing piece (10).

2. A lifting stage with safety device according to claim 1, characterized in that: the lower surface fixedly connected with extension festival (14) of support plate (2), and extension festival (14) are equipped with four altogether, and the lower extreme of four extension festival (14) is all rotated and is connected with universal wheel (15), logical groove (16) have all been seted up to the position that is located under universal wheel (15) in bottom plate (1).

3. A lifting stage with safety device according to claim 1, characterized in that: the lifting mechanism comprises a cross hinge frame (17) hinged between the upper surface of the bottom plate (1) and the lower surface of the carrier plate (2), two cross hinge frames (17) are symmetrically arranged front and back, a linkage rod (19) is fixedly connected between the two cross hinge frames (17) in an up-down symmetrical mode, guide frames (20) are sleeved on the outer circumferential walls of the linkage rod (19), and the two groups of guide frames (20) are fixedly connected to the upper surface of the bottom plate (1) and the lower surface of the carrier plate (2) respectively.

4. A lifting stage with safety device according to claim 3, characterized in that: the lifting mechanism further comprises electric telescopic rods (18) hinged to the outer walls of the cross hinge frames (17), and the four electric telescopic rods (18) are arranged in total.

5. A lifting stage with safety device according to claim 1, characterized in that: the sliding chute (12) is formed in the top of the bottom plate (1), the lower ends of the sliding doors (5) are located in the sliding chute (12), the positioning grooves (13) are symmetrically formed in the front and back of the bottom plate (1), the upper ends of the ball screws (7) are located in the two positioning grooves (13) respectively, and the section of each positioning groove (13) is of a T-shaped structure.

6. A lifting stage with safety device according to claim 1, characterized in that: permanent magnets (11) are fixedly connected to the opposite surfaces of the two sliding doors (5), and the two permanent magnets (11) are attracted.

7. The lifting stage with safety device of claim 4, wherein: the inner wall of the protective fence (3) is fixedly connected with a controller (21), and the four electric telescopic rods (18) are electrically connected with the controller (21).