CN217867926U - Lifting platform - Google Patents

Abstract

The utility model discloses a lifting platform, which relates to the technical field of stage mechanical performances; it comprises a motor mounting seat, a driving motor, a table panel, two deceleration connection structures, four scissor mounting seats and four scissor structures, the motor The mounting base is arranged horizontally, the motor mounting base is provided with a first-stage reducer, the drive motor is connected to the first-stage reducer, and the two decelerating connection structures are symmetrically arranged at both ends of the first-stage reducer, two The deceleration connection structure is connected with the transmission of the first-stage reducer, and the four scissor mounts are arranged at equal intervals, and the four scissor structures are respectively rotatably connected to the four scissor mounts. On the top of the scissor structure, the table panel is rotatably connected to the four scissor structures, and the two deceleration connection structures are respectively fixedly connected to the four scissor structures. The utility model realizes lifting through the U-shape and the transmission part of the scissor arm, and the overall cost performance is high.

Description

a lifting platform

technical field

The utility model relates to the technical field of stage performance mechanical equipment, in particular to a lifting platform.

Background technique

In order to be able to undertake all kinds of high-level domestic and foreign operas, dance dramas, traditional dramas, quyi, and dramas, and to meet the needs of large-scale variety show performances, choruses, and group photos. Lifting platforms will become indispensable off-stage equipment for modern performing arts stages. Existing lifting platforms mostly adopt hydraulic + scissors fork lifting and rigid chain lifting transmission structure. The former is positioned at the parking position by maintaining pressure, and the hydraulic oil is greatly affected by temperature changes. , the synchronization accuracy and positioning accuracy of multiple lifting platforms are poor when they are lifted and lowered in coordination, which is not easy to use together; in the short-stroke lifting platform and lifting chorus platform, the latter is expensive to manufacture.

Utility model content

The utility model provides a lifting platform to solve the above technical problems.

The utility model provides a lifting platform, which comprises a motor mounting seat, a driving motor, a table panel, two deceleration connection structures, four scissor mounting seats and four scissor structures, the motor mounting seat is arranged horizontally, and the A first-stage reducer is provided on the motor mounting base, and the driving motor is connected to the first-stage reducer. The transmission connection of the reducer, the four scissor mounts are arranged at equal intervals, the four scissor structures are respectively connected to the four scissor mounts by rotation, the table panel is horizontally arranged on the top of the four scissor structures, the The table panel is rotatably connected to the four scissor structures, and the two deceleration connection structures are respectively fixedly connected to the four scissor structures.

Further, each of the deceleration connection structures includes a transition shaft, a coupling, two U-shaped tie rods, two rack guide seats and two secondary reducers, and the two rack guide seats are symmetrically arranged on At both ends of the first-stage reducer, the motor mount is provided with a reducer mount, one of the two-stage reducers is set on the reducer mount and is connected to the first-stage reducer through the transition shaft, and the other two-stage The reducer is set on the motor mounting base and is connected to the first-stage reducer through a coupling. Each of the two-stage reducers is provided with two gears connected to the drive, and the bottom of the gear is provided with a gear meshing with it. The gear rack, the mounting base of the reducer and the mounting base of the motor are provided with a rack guide seat for carrying the movement of the rack.

Further, each scissor structure includes two connecting shafts and two sets of scissor arms, and the two sets of scissor arms 27 are rotatably connected through the two connecting shafts, and the bottom of each set of scissor arms is rotatably connected to the scissor installation. On the seat, each group of scissor arms is provided with two traveling wheels, and the two traveling wheels respectively rotate to connect the top and bottom of the scissor arm, and the bottom of the table panel is provided with guides for the travel wheels at the top to move. groove, two symmetrically arranged limit plates on the scissor mounting base, guide side plates are provided on the sides of the two limit plates, a moving space is formed between the guide side plates and the limit plates, and the two A load-bearing beam that slides and fits with it is arranged between the two limit plates, and the two traveling wheels at the bottom of the scissor structure are respectively connected to the two ends of the load-bearing beam in rotation, and the two travel wheels at the bottom of the scissor structure are connected between the two Turn between moving gaps.

Further, the end of each rack is connected to a U-shaped tie rod, the tail end of the U-shaped tie rod is provided with an O-shaped tie rod, and a tensioner is provided between the O-shaped tie rod and the U-shaped tie rod. Another U-shaped pull rod is connected to the O-shaped pull rod, and an adjustment screw is provided on the U-shaped pull rod. nuts.

Further, a connecting pin is provided between each of the U-shaped tie rods and the O-shaped tie rods.

Further, it also includes the highest position limiter and the lowest position limiter electrically connected to the driving motor, and the highest position limiter and the lowest position limiter are symmetrically arranged on the scissor mounting base at the middle position. The two ends of the guide side plate are provided with limiting collision blocks on the traveling wheels in the middle position.

The utility model provides a lifting platform through improvement. Compared with the prior art, it has the following improvements and advantages:

(1) The scissor structure can be set in pairs, which can reduce the material used for the table top profile and facilitate production and on-site installation.

(2) The connection position between the U-shaped tie rod and the scissor structure can be adjusted and fixed to ensure that multiple sets of scissor structures can be on the same level.

(3) The transmission efficiency of rack and pinion is high, which is superior to the transmission methods of hydraulic rod, electric rod and screw nut.

(4) The maximum stroke and the minimum stroke position are set with mechanical limit, which can effectively protect the integrity of the entire structure in the case of overtravel operation

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 3 is the partial three-dimensional structure schematic diagram of the utility model;

Figure 4 is an enlarged view of point I in Figure 2;

Figure 5 is an enlarged view of II in Figure 1;

Fig. 6 is a side view of the utility model;

Figure 7 is an enlarged view of III in Figure 6;

Fig. 8 is an enlarged view of place IV in Fig. 2;

Fig. 9 is a schematic diagram of the maximum jacking position of the utility model;

Fig. 10 is a schematic diagram of the minimum jacking position of the utility model;

Fig. 11 is the floor plan of the utility model;

Explanation of reference signs:

Motor mount 1, drive motor 2, primary reducer 3, transition shaft 4, coupling 5, secondary reducer 6, rack 7, gear 8, reducer mount 9, rack guide seat 10, U Type tie rod 11, scissor mounting seat 12, highest position limiter 13, lowest position limiter 14, O-type tie rod 15, scissor structure 16, table panel 17, guide side plate 18, limit plate 19, load beam 20, walking wheel 21, guide groove 22, limit collision block 23, adjustment screw 24, tensioner 25, bearing pin 26, scissor arm 27, nut 28.

Detailed ways

The utility model will be described in detail below in conjunction with accompanying drawings 1 to 11, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than Full examples. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The utility model provides a lifting platform through improvement, including a motor mounting base 1, a driving motor 2, a table panel 17, two deceleration connection structures, four scissor mounting bases 12 and four scissor structures 16. The motor mounting base 1 is arranged horizontally, and the motor mounting base 1 is provided with a first-stage reducer 3, which can realize the adjustment of the torque generated by the drive motor 2, and the drive motor 2 is connected in a first-stage drive On the reducer 3, the drive motor 2 of the lifting platform has double brakes and stroke detection devices. The two deceleration connection structures are symmetrically arranged at both ends of the first-stage reducer 3. The two deceleration connection structures are connected to a Stage reducer 3 transmission connection, four scissor mounts 12 are arranged at equal intervals, four scissor structures 16 are respectively rotatably connected to the four scissor mounts 12, and the table panel 17 is horizontally arranged on the four scissor mounts. On the top of the structure 16, the table panel 17 is rotatably connected to the four scissor structures 16, and the two deceleration connection structures are fixedly connected to the four scissor structures 16 respectively. When the lifting platform is lifted, the drive motor 2 drives the two deceleration connection structures to work and rotate, and the work of the two deceleration connection structures drives the four scissor structures 16 to rotate on the four scissor mounting seats 12, so that the scissors The support structure 16 reciprocates and expands up and down to realize the height position change of the table panel 17 .

Specifically, each of the deceleration connection structures includes a transition shaft 4, a coupling 5, two U-shaped tie rods 11, two rack guide seats 10 and two secondary reducers 6, and the two racks The guide seat 10 is symmetrically arranged at both ends of the first-stage reducer 3, the motor mount 1 is provided with a reducer mount 9, and one of the two-stage reducer 6 is arranged on the reducer mount 9 and passes through the transition shaft 4 It is connected to the first-stage reducer 3 in transmission, and another two-stage reducer 6 is arranged on the motor mounting base 1 and is connected to the first-stage reducer 3 through the coupling 5. The second-stage reducer 6 can generate rotation speed for the driving motor 2. The torque is adjusted again, each of the two-stage reducer 6 is provided with two gears 8 connected to its transmission, the bottom of the gear 8 is provided with a rack 7 meshing with it, and the reducer mounting seat 9 and the motor mount 1 are provided with a rack guide seat 10 for carrying the movement of the rack 7, and the rack guide seat 10 guides and carries the left and right movement of the rack 7; each scissor structure 16 includes two connection Shaft and two sets of scissor arms 27. This equipment adopts multiple sets of scissor structures 16 to lift simultaneously. For large-scale lifting platforms, the bearing span of the table panel 17 can be reduced, and the material size of the table panel 17 can be effectively reduced. The two sets of scissors The brace arms 27 are rotatably connected by two connecting shafts, and the bottoms of each group of the scissor brace arms 27 are rotatably connected on the scissor brace mounts 12, and each group of scissor brace arms 27 are provided with two traveling wheels 21, and the two The traveling wheels 21 are respectively rotated to connect the top and the bottom of the scissor arms 27. The bottom of the table panel 17 is provided with a guide groove 22 for the traveling wheels 21 at the top to move. Limiting plate 19, the side of two described limiting plates 19 is provided with guiding side plate 18, forms moving space between described guiding side plate 18 and limiting plate 19, between two described limiting plates 19 There is a load-bearing beam 20 slidingly matched with it, and the two traveling wheels 21 at the bottom of the scissor structure 16 are respectively connected to the two ends of the load-bearing beam 20 in rotation, and the two traveling wheels 21 at the bottom of the scissor structure 16 are in two moving gaps. Rotate between them, the traveling wheel 21 moves in the guide groove 22 and the moving gap, guides the traveling wheel 21 to move in the guiding groove 22 and the moving gap, so that each group of scissor structures 16 can reach the load and guide operation of the table panel 17, effectively Prevent sideways tilting. This equipment adopts multiple sets of scissor brace structures 16 to lift simultaneously, which can reduce the carrying span of the platform 17 for large-sized lifting platforms, and can effectively reduce the material size of the platform 17 profiles.

Specifically, the end of each rack 7 is connected to a U-shaped tie rod 11, and the tail end of the U-shaped tie rod 11 is provided with an O-shaped tie rod 15, and between the O-shaped tie rod 15 and the U-shaped tie rod 11 A tensioner 25 is provided, and another U-shaped pull rod 11 is connected to the O-shaped pull rod 15, and an adjusting screw 24 is arranged on the U-shaped pull rod 11, and the U-shaped pull rod 11 is connected with the bearing by the adjusting screw 24 Beam 20 is connected, the adjustment screw 24 is provided with a nut 28 connected with its screw, the U-shaped pull rod 11 has an adjustment thread, which can adjust the accuracy of multiple groups of scissor structures 16 on the same horizontal plane, so that each group of scissor structures 16 is subjected to The force is uniform, so that the table top 17 is in a horizontal state, and the U-shaped tie rod 11 is fixed on the load beam 20 by the nut 28 after the adjustment is completed.

When in use, the driving motor 2 drives the two secondary reducers 6 to rotate through the transition shaft 4 and the coupling 5, thereby driving the two gears 8 to rotate, and the rotation of the two gears 8 drives the two racks 7 in the gear The bar guide seat 10 moves left and right, and the position of the rack 7 moves to drive one of the U-shaped pull rods 11 to move horizontally so that the O-shaped pull rod 15 moves, and the movement of the O-shaped pull rod 15 drives the other U-shaped pull rod 11 to move horizontally. A U-shaped tie rod 11 moves horizontally so as to drive the load beam 20 to move left and right on the two guide side plates 18, and the movement of the load beam 20 drives the two sets of scissor arms 27 to rotate on the two rotation axes, and the two sets of scissor arms 27 The rotation drives the running wheel 21 at the top to rotate in the guide groove 22, and drives the running wheel 21 at the bottom to move in the moving gap, so that the scissor structure 16 rotates on the scissor mounting seat 12 to realize the platform 17 rise.

Specifically, a connecting pin 26 is provided between each of the U-shaped tie rods 11 and the O-shaped tie rods 15 . When in use, the U-shaped tie rod 11 and the O-shaped tie rod 15 can be disassembled, and the number of scissor structures 16 can be increased or decreased according to the length of the lifting platform.

Specifically, it also includes the highest position limiter 13 and the lowest position limiter 14 electrically connected to the drive motor 2, and the highest position limiter 13 and the lowest position limiter 14 are symmetrically arranged on the scissors in the middle position. The two ends of the guide side plate 18 on the support mounting seat 12 are provided with a limit collision block 23 on the walking wheel 21 in the middle position. When the traveling wheel 21 moves on the scissor mount 12, it drives the limit collision block 23 to move left and right, and conflicts with the highest limiter 13 and the lowest limiter 14, so that the start and stop of the driving motor 2 can be controlled. , this device can effectively prevent the equipment from exceeding the highest stroke and the lowest stroke position. The lifting table of this transmission structure can be customized according to customer needs with different widths and lengths of equipment.

Working principle: When the table panel 17 is rising, the driving motor 2 drives the two secondary reducers 6 to rotate through the transition shaft 4 and the coupling 5, thereby driving the two gears 8 to rotate, and the rotation of the two gears 8 drives the two A rack 7 moves left and right on the rack guide seat 10, and the position of the rack 7 moves to drive one of the U-shaped tie rods 11 to move horizontally, so that the O-shaped tie rod 15 moves, and the movement of the O-shaped tie rod 15 drives the other U-shaped tie rod. 11 moves horizontally, and the two U-shaped tie rods 11 move horizontally to drive the load beam 20 to move left and right on the two guide side plates 18, and the load beam 20 moves to drive the two sets of scissor arms 27 to rotate on the two rotation axes The two groups of scissor arms 27 rotate to drive the running wheels 21 at the top to rotate in the guide groove 22, and drive the running wheels 21 at the bottom to move in the moving gap, so that the scissor structure 16 is mounted on the scissor mounting seat 12. Rotate to realize the rise of the table panel 17;

When the table panel 17 descends, the drive motor 2 reverses, and the pulling force transmitted by the drive motor 2 to the U-shaped tie rod 11 and the O-shaped tie rod 15 decreases. 17 Descending, U-shaped tie rod 11 and O-shaped tie rod 15 are all subjected to tension during the whole lifting process.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. An elevating platform, its characterized in that: including motor mount pad (1), driving motor (2), deck plate (17), two speed reduction connection structure, four cut and prop mount pad (12) and four and cut and prop structure (16), motor mount pad (1) is the level setting, be equipped with one-level speed reducer (3) on motor mount pad (1), driving motor (2) transmission is connected on one-level speed reducer (3), two speed reduction connection structure symmetry sets up at the both ends of one-level speed reducer (3), two speed reduction connection structure is connected with one-level speed reducer (3) transmission, and four are cut and prop mount pad (12) and are equidistant setting, and four are cut and prop structure (16) and rotate respectively and connect on four are propped mount pad (12), deck plate (17) level sets up four tops of cutting and prop structure (16), deck plate (17) and four are cut and prop structure (16) rotation with four and are connected, and two speed reduction connection structure cut respectively and prop structure (16) fixed connection.

2. The lifting platform according to claim 1, wherein each of the speed reduction connection structures comprises a transition shaft (4), a coupler (5), two U-shaped pull rods (11), two rack guide seats (10) and two secondary speed reducers (6), the two rack guide seats (10) are symmetrically arranged at two ends of a primary speed reducer (3), a speed reducer mounting seat (9) is arranged on the motor mounting seat (1), one of the secondary speed reducers (6) is arranged on the speed reducer mounting seat (9) and is in transmission connection with the primary speed reducer (3) through the transition shaft (4), the other secondary speed reducer (6) is arranged on the motor mounting seat (1) and is in transmission connection with the primary speed reducer (3) through the coupler (5), two gears (8) in transmission connection with the secondary speed reducers (6) are arranged on each of the secondary speed reducers (6), a rack (7) meshed with the gears is arranged at the bottom of the gears (8), and the rack guide seats (10) for bearing the movement of the rack (7) are arranged on the speed reducer mounting seat (9) and the motor mounting seat (1).

3. The lifting platform according to claim 2, characterized in that, every is cut and is propped structure (16) and all includes two connecting axles and two sets of support arms (27) of cutting, and two sets of support arms (27) of cutting are rotated through two connecting axles and are connected, every group the bottom of cutting support arm (27) is rotated and is connected on cutting and propping mount pad (12), all is equipped with two walking wheels (21) on every group support arm (27), two walking wheels (21) rotate respectively and connect and cut support arm (27) top and bottom, the bottom of deck plate (17) is equipped with guide way (22) that the walking wheel (21) that supplies to be located the top removed, cut and prop limiting plate (19) that two symmetries set up on mount pad (12), two the side of limiting plate (19) is equipped with direction curb plate (18), form the removal space between direction curb plate (18) and the limiting plate (19), two be equipped with its sliding fit's carrier bar (20) between limiting plate (19), two walking wheels (21) that are located and cut and prop structure (16) bottom do not rotate with the both ends of carrier bar (20), and are located two gaps and are connected between two rotation structure (16).

4. The lifting platform according to claim 3, characterized in that the end of each rack (7) is connected with a U-shaped pull rod (11), the tail end of the U-shaped pull rod (11) is provided with an O-shaped pull rod (15), a tensioner (25) is arranged between the O-shaped pull rod (15) and the U-shaped pull rod (11), the O-shaped pull rod (15) is further connected with another U-shaped pull rod (11), the U-shaped pull rod (11) is provided with an adjusting screw (24), the U-shaped pull rod (11) is connected with the bearing beam (20) through the adjusting screw (24), and the adjusting screw (24) is provided with a nut (28) in screw connection with the adjusting screw.

5. A lifting platform according to claim 4, characterised in that a connecting pin (26) is provided between each of the U-shaped tie rods (11) and the O-shaped tie rod (15).

6. The lifting platform according to claim 4, further comprising an uppermost position limiter (13) and a lowermost position limiter (14) electrically connected to the driving motor (2), wherein the uppermost position limiter (13) and the lowermost position limiter (14) are symmetrically arranged at two ends of a guide side plate (18) on the shear support mounting seat (12) at the middle position, and a limit collision block (23) is arranged on the travelling wheel (21) at the middle position.

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