CN111206801B - Lifting telescopic stand - Google Patents
Lifting telescopic stand Download PDFInfo
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- CN111206801B CN111206801B CN201910988658.0A CN201910988658A CN111206801B CN 111206801 B CN111206801 B CN 111206801B CN 201910988658 A CN201910988658 A CN 201910988658A CN 111206801 B CN111206801 B CN 111206801B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/12—Tribunes, grandstands or terraces for spectators
- E04H3/123—Telescopic grandstands
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Abstract
The invention discloses a lifting telescopic stand, which comprises a front stand frame, a rear stand frame, a support frame and a lifting frame, wherein the front stand frame and the rear stand frame are of telescopic structures formed by a plurality of layers of supports which are arranged in a front-back direction in a stacking manner, each layer of support is provided with a stand plate, the height of the stand plates is gradually increased from the front layer to the rear layer of the stand frame, the support frame is of a multi-layer telescopic structure which is arranged in a front-back direction in a stacking manner, the height of the support frame is equivalent to that of the last stand plate on the front stand frame, and the lifting frame is positioned at the rear side of the support frame. The lifting telescopic stand can greatly improve the number of seat layers and the number of seats, meet the requirements of large-scale performance and meeting places, can be combined into a temporary platform, and has high practical value.
Description
Technical Field
The invention relates to the technical field of movable stands, in particular to a lifting telescopic stand which can greatly improve the number of seat layers of the stand and meet the requirements of large-scale performance and meeting places.
Background
The temporary telescopic grandstand in the prior art is generally low in floor height, and the number of seats which can be accommodated by the grandstand is limited, so that the needs of large-scale performance and meeting places cannot be met. If the number of layers is increased on the basis of the telescopic stand in the prior art, the instability of the stand is easily caused due to the fact that the number of the layers of the telescopic stand legs is large; meanwhile, the height of the contracted stand is too high due to the overhigh support structure, so that the transportation of the stand is influenced. On the other hand, because the telescopic bleachers are usually applied to temporary places, sometimes a temporary platform is required to be built to be used as a larger performance stage, and the like, but the telescopic bleachers in the prior art can only be used as bleachers, cannot be combined into other functional components, and have single functions. Chinese patent document No. CN 104213726 a, published as 2014, 12 and 17, discloses a telescopic modular stand and a combination thereof, wherein the telescopic modular stand comprises: the container lifting device comprises a square main body frame, a multi-layer stand plate arranged on the main body frame and a seat arranged on the stand plate, wherein the stand plate can be pulled open to be in a step shape or contracted to be in a stacked shape, a connecting interface connected with a container lifting device is arranged at the top of the main body frame, and a connecting interface connected with a stacking device of containers is arranged at the bottom of the main body frame. The telescopic modular stand can be combined into a transportation assembly equivalent to a standard container of 20 feet in a pairwise combination mode, or combined into a transportation assembly equivalent to a standard container of 40 feet in a four combination mode, so that the problems of inconvenience in loading, unloading, bundling, field installation and the like in the transportation process of the telescopic modular stand are solved, and the transportation efficiency of the modular stand is improved. But this telescopic modularization stand mainly solves a great deal of inconvenient problems such as loading, uninstallation, tie up and field installation in the stand transportation, has improved the conveying efficiency of modularization stand. The number of seats of the stand is not high due to the limitation of the height of a standard container, and the number of seats on a single-layer seat is small, so that the needs of large-scale performance and meeting places cannot be met.
Disclosure of Invention
The invention aims to solve the problems that the number of layers of telescopic stands is low, the number of seats which can be accommodated is limited, and the requirements of large-scale performance and meeting places cannot be met in the prior art, and provides a lifting telescopic stand which can greatly improve the number of the layers and the number of the seats of the stand and can meet the requirements of the large-scale performance and meeting places.
The invention also aims to solve the problems that the telescopic grandstand in the prior art can only be used as a grandstand and has single function, and provides a lifting telescopic grandstand which can be combined into a temporary platform and meet more practical requirements.
The invention adopts the technical scheme that the lifting telescopic stand comprises a stand frame, a support frame and a lifting frame, wherein the stand frame comprises a front stand frame and a rear stand frame, the front stand frame and the rear stand frame are both of telescopic structures formed by a plurality of layers of supports which are arranged in a front-back direction in a stacking manner, the height of the support frame at the rear layer is greater than that of the support frame at the front layer, each layer of support frame is provided with a stand plate, the height of the stand plate is gradually increased from the front layer of the stand frame to the rear layer of the stand frame, the support frame is of a plurality of layers of telescopic structures which are arranged in a front-back direction in a stacking manner, the height of the support frame is equivalent to that of the last stand plate on the front stand frame, and the support frame is positioned at the rear side of the lifting frame; when the lifting telescopic stand is used, the lifting frame lifts the rear stand in a contraction state to the support frame in the contraction state, the rear stand and the support frame are pulled forwards to be stretched, the front stand is arranged on the front side of the support frame after being unfolded, the rear end of the front stand is tightly attached to the front end of the support frame, the front stand is pulled forwards to be stretched, and the front stand and the stand board behind the rear stand form a continuous ladder-shaped structure. The lifting telescopic stand comprises a front stand and a rear stand, wherein the front stand and the rear stand are of multilayer telescopic structures which are arranged in a front-back stacking manner, the rear stand is arranged on a support frame, the support frame is of a multilayer telescopic equal-height structure which is arranged in a front-back stacking manner, the top structure of the support frame is matched with the bottom structure of the rear stand, and the rear stand is arranged on the support frame when the lifting telescopic stand is unfolded and can be synchronously stretched. The lifting frame is arranged at the rear side of the rear stand and used for lifting the rear stand in a contracted state onto the supporting frame, the lifted rear stand and the supporting frame are pulled forwards to be stretched and locked, and a continuous step-shaped structure is formed by the lifting frame and the front stand in a stretched state.
Preferably, the stand plate is provided with a detachable folding seat, the height of the folded seat is lower than the height difference between two adjacent stand plates, two ends of each stand plate are provided with fences, the fences are fixedly spliced with the stand plate, and the upper ends of the fences are outwards in an inclined structure; when the lifting telescopic stand is contracted, the fences at two sides of the stand plate on the upper layer are contracted in the fences at two sides of the stand plate on the lower layer. Although spectators can directly sit on the stand board to watch programs, the stand board is provided with the detachable folding seat, and the folding seat can be assembled according to different requirements, so that the comfort of spectators is improved. In addition, the height of the folding seat is lower than the height difference of the two adjacent stand plates after being folded, and the folding seat can enter between the upper stand plate and the lower stand plate when the stand is contracted, so that the contraction of the telescopic stand is not influenced. In addition, the rail is used for shielding the two ends of the stand plate and preventing the audience from falling off. The fence with the outer inclined structure can be stacked up and down when the lifting telescopic stand contracts, and the contraction of the lifting telescopic stand cannot be influenced.
Preferably, the lifting frame is semi-surrounded on the rear stand frame in a contraction state from the rear side and two sides, a lifting motor for driving the rear stand frame to lift is arranged on the lifting frame, the lifting motor is connected with winches arranged on two sides through a transmission shaft, steel wire ropes on the winches on the two sides are fixed with a cross frame through pulley mechanisms, and the rear stand frame is placed on the cross frame. The transverse frame is used for placing the rear viewing platform frame and lifting along with the lifting of the transverse frame. The lifting frame is in a frame shape with an opening at one side, the rear stand frame in a contraction state is surrounded from the rear side and the two sides, the rear stand frame is placed on the transverse frame which can be lifted, when the rear stand frame needs to be unfolded for use, the lifting motor lifts the transverse frame and the rear stand frame on the transverse frame through the winches at the two sides and moves the transverse frame and the rear stand frame to the supporting frame, and therefore the rear stand frame and the supporting frame can be unfolded and locked together; when the rear stand needs to be retracted, the rear stand and the support frame are unlocked and are retracted synchronously to move to the cross frame, and the lifting motor lowers the cross frame and the rear stand on the cross frame to the ground through winches on two sides.
Preferably, the four corners of the lifting frame are provided with supporting feet, each supporting foot comprises a cross arm extending outwards from the four corners of the lifting frame, a screw rod nut is arranged on each cross arm, the screw rod is in threaded connection with the screw rod nut, a hand wheel is arranged at the top end of each screw rod, and a supporting plate is arranged at the bottom end of each screw rod. The supporting legs are fixed with ground when the crane carries out lifting operation, and the ground wheel of avoiding the crane bottom takes place to roll when the crane carries out lifting operation and influences the lift. The supporting legs are of a telescopic structure, and can extend downwards to support the ground through the supporting plate by rotating the hand wheel when needed, the bottom surface of the supporting plate is higher than that of the land wheel at ordinary times, and the supporting legs are in a suspended state.
Preferably, the support includes that a plurality of groups set up in pairs, and the interval between two stands of back is greater than the interval between two stands of front, the rear side of seeing the platform board is fixed on the upper portion of stand, and the top of stand is higher than the stand board, and the stand leading flank of stand board top is equipped with the riser, and the riser constitutes the vertical face and the horizontal plane of lift flexible stand stair structure with the stand board respectively, and the top surface of stand is equipped with the running roller, and when lift flexible stand expanded, the preceding side bottom surface of upper strata (back) seeing the platform board erects on the running roller of lower floor (front) stand top surface. Because the number of seats on each row of seats is large, the bracket adopts a plurality of groups of stand columns which are arranged in pairs for supporting the stand, the distance between two stand columns on the rear layer of each group is larger than the distance between two stand columns on the front layer, and the stand columns are convenient to be mutually stacked when the stand columns shrink; the top surface of the upright post is provided with the roller which can be used for supporting the upper watching plate (so that the last layer is not arranged) and is convenient to slide into the lower part of the upper watching plate when being contracted.
Preferably, the upright columns are L-shaped, cross bars are fixed at the bottoms of the upright columns, land wheels are arranged at the bottoms of the cross bars, the upright cross bars of the rear layer of supports are slidably connected to the outer sides of the upright cross bars of the front layer of supports, connecting rods are transversely arranged at the lower parts of the upright columns of the same group, inclined support rods are further arranged on the upright columns, the lower ends of the inclined support rods are fixed with the end parts of the connecting rods, the upper ends of the inclined support rods are fixed with the rear sides of the viewing platform plates, and the inclined support rods on the two upright columns are symmetrically arranged. The contact length of the bottom of the upright post and the ground can be increased by the cross bar, so that a stabilizing effect is achieved; the upright post cross rod of the bracket at the rear layer can be slidably connected with the outer side of the upright post cross rod of the bracket at the front layer, so that the bracket can be conveniently stretched; the connecting rods and the inclined stay bars on the stand columns are used for strengthening the structural strength of the support.
Preferably, the folding seat comprises a rectangular seat, the bottom surface of the rectangular seat is tightly attached to the stand plate, the rear side surface of the rectangular seat is tightly attached to the vertical plate, fastening joints are arranged on the bottom surface and the rear side surface of the rectangular seat, fastening grooves corresponding to the fastening joints are arranged on the stand plate and the vertical plate, the fastening grooves in the vertical plate are L-shaped, the folding seat is fixed to the stand plate and the vertical plate through the fastening joints and the fastening grooves, and an anti-disengagement mechanism of the folding seat is further arranged on the stand plate. Folding seat passes through rectangle seat and stand board and riser lock joint, can make things convenient for the dismouting, and the lock joint groove that is L shape can make whole row of folding seat insert the lock joint in proper order in a direction, and the inserted seat in back becomes the preceding obstacle that inserts the seat, consequently only needs to set up one department's anti-disengaging mechanism in last inserted position, can prevent deviating from of whole row of folding seat, ensures whole row of folding seat's firm, makes things convenient for the dismantlement of folding seat simultaneously greatly.
Preferably, the front stand and the rear stand have the same structure, and the height difference between the two adjacent stands on the front stand or the rear stand is the same; the front side of the front layer (the first layer) of the rear stand and the rear side of the rear layer of the front stand are both provided with hinge lugs, the hinge lugs are provided with hinge shaft holes, and when the rear stand is lifted to the support frame in a contraction state, the hinge lugs on the rear stand are hinged with the hinge lugs on the front stand through (inserted) hinge shafts; the front stand and the rear stand are pulled open and extended towards one side far away from the support frame, and the front stand and the rear stand are overlapped up and down in the opposite direction to form a platform-shaped structure. Under the condition that the folding seat is not installed, the upper end of the rear part of the front stand can be hinged with the front part of the rear stand, so that the front stand and the rear stand can form a reverse overlapping platform structure when being unfolded, the front stand and the rear stand can be used as a temporary performance platform, the problem of single function of the telescopic stand in the prior art is solved, and the utilization rate of the telescopic stand is greatly improved.
Preferably, the number of layers of the support frame is the same as that of the rear stand, each layer of the support frame is of an equal-height structure, the top structure of the support frame is matched with the bottom structure of the rear stand, the top of the support frame is provided with a positioning groove for fixing the bottom of the rear stand, and the bottom of the support frame is provided with a land wheel. The number of piles of support frame is the same with the number of piles of back stand, and the top structure of support frame and the bottom structure looks adaptation of back stand, the top of support frame is embedded into to the bottom one-to-one of back stand during the installation, can increase the steadiness of back stand and conveniently realize synchronous flexible.
Preferably, telescopic motors for driving the stand frame or the support frame to stretch and retract are arranged below the front layer stand board of the stand frame and the front layer lower part of the support frame, the telescopic motors are arranged between two upright posts in the same group, the telescopic motors drive idler wheels through chains, and traction ropes are arranged on the idler wheels; a speed reducer is arranged between the lifting motor and the transmission shaft, the rear end of the lifting motor is connected with a manual wheel, the transmission shaft is further connected with a cam switch and an encoder which are used for controlling the lifting motor to decelerate and stop, and the bottoms of the lifting frame and the stand are provided with fixing plates which can be fixed with the ground. The telescopic motor drives the traction rope on the roller through the chain to realize the telescopic effect of the front and rear viewing platforms and the support frame. A speed reducer is arranged between the lifting motor and the transmission shaft and is used for reducing the lifting speed of the rear viewing platform; the manual lifting can be realized through the manual wheel, the cam switch and the encoder are used for controlling the number of rotation turns of the transmission shaft, and the accurate lifting of the rear stand is realized.
Preferably, 10-12 rows of seats are arranged on the front and rear viewing stands, each row of seats is provided with 20-25 seats, the seats are arranged in different areas, an aisle is arranged between two adjacent areas, and the number of the seats on the whole lifting telescopic stand is 400-600. Compared with the telescopic grandstand in the prior art, the number of the seats of the lifting telescopic grandstand is increased by more than half, and the requirements of large-scale performance and meeting places can be met.
The invention has the beneficial effects that: the lifting telescopic stand effectively solves the problems that the telescopic stand in the prior art is low in layer number and limited in the number of seats to be accommodated, and cannot meet the requirements of large-scale performance and meeting places, and also solves the problems that the telescopic stand in the prior art can only be used as a stand and is single in function.
Drawings
FIG. 1 is a schematic side view of a telescopic elevating platform of embodiment 1 of the present invention in an unfolded state;
FIG. 2 is a schematic side view of the embodiment 2 of the telescopic stand of the present invention in an unfolded state;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of a backward structure of a retractable bleacher in a retracted state according to embodiment 3 of the present invention;
FIG. 5 is a schematic side view of the telescopic grandstand of embodiment 2 of the present invention in a contracted state;
FIG. 6 is a schematic side view of the telescopic grandstand of embodiment 3 of the present invention in a contracted state;
figure 7 is a schematic side view of the crane of the present invention;
figure 8 is a schematic view of a rearward arrangement of the crane of the present invention;
FIG. 9 is a schematic side view of the embodiment 3 of the telescopic stand of the present invention in the unfolded state;
FIG. 10 is a schematic side view of the embodiment 4 of the telescopic stand of the present invention in the unfolded state;
FIG. 11 is a schematic side view showing another side structure of the embodiment 4 of the telescopic grandstand of the present invention in the unfolded state;
FIG. 12 is a schematic side view of the folding seat of the present invention shown when unfolded;
figure 13 is a schematic side view of the folding seat of the present invention in a reclined configuration.
In the figure: 1. the lifting device comprises a supporting frame, 2, a lifting frame, 3, a front viewing rack, 4, a rear viewing rack, 5, a support, 6, a viewing platform plate, 7, a folding seat, 8, a fence, 9, a lifting motor, 10, a transmission shaft, 11, a winch, 12, a steel wire rope, 13, a pulley mechanism, 14, a cross frame, 15, a cross arm, 16, a lead screw nut, 17, a lead screw, 18, a hand wheel, 19, a supporting plate, 20, a stand column, 21, a vertical plate, 22, a roller, 23, a cross bar, 24, a ground wheel, 25, a connecting rod, 26, an inclined strut bar, 27, a rectangular seat, 28, a fastening head, 29, a rear viewing rack front layer, 30, a front viewing rack rear layer, 31, a hinge lug, 32, a hinge shaft, 33, a telescopic motor, 34, a speed reducer, 35, a manual wheel, 36, a cam switch, 37, 38 and a passageway.
Detailed Description
The following provides a further description of embodiments of the present invention by way of examples and with reference to the accompanying drawings.
Example 1
In embodiment 1 shown in fig. 1, a lifting telescopic stand comprises a stand frame, a support frame 1 and a lifting frame 2, wherein the stand frame comprises a front stand frame 3 and a rear stand frame 4, the front stand frame and the rear stand frame are both telescopic structures formed by a plurality of layers of supports 5 which are arranged in a front-back direction in a stacking manner, the height of the rear layer of supports is greater than that of the front layer of supports, each layer of supports is provided with a stand plate 6, the height of the stand plates is gradually increased from the front layer of the stand frame to the rear layer of the stand frame, the support frame is a plurality of layers of telescopic structures which are arranged in a front-back direction in a stacking manner, the height of the support frame is equivalent to that of the last stand plate on the front stand frame, and the lifting frame is positioned at the rear side of the support frame; when the lifting telescopic stand is used, the lifting frame lifts the rear stand in a contraction state to the support frame in the contraction state, the rear stand and the support frame are pulled forwards to be stretched, the front stand is arranged on the front side of the support frame after being unfolded, the rear end of the front stand is tightly attached to the front end of the support frame, the front stand is pulled forwards to be stretched, and the front stand and the stand board behind the rear stand form a continuous ladder-shaped structure.
The lifting frame (see fig. 7 and 8) is semi-surrounded on the rear stand in a contraction state from the rear side and two sides, a lifting motor 9 for driving the rear stand to lift is arranged on the lifting frame, the lifting motor is connected with winches 11 arranged on two sides through a transmission shaft 10, steel wire ropes 12 on the winches on the two sides are fixed with a cross frame 14 through pulley mechanisms 13, and the rear stand is placed on the cross frame. Supporting legs are arranged at four corners of the lifting frame, the supporting legs comprise cross arms 15 extending outwards at the four corners of the lifting frame, screw nuts 16 arranged on the cross arms and screw rods 17 connected with the screw nuts in a threaded mode, hand wheels 18 are arranged at the top ends of the screw rods, and supporting plates 19 are arranged at the bottom ends of the screw rods.
The support includes three group stand 20 (see fig. 4) that set up in pairs, and the interval between two stands of back is greater than the interval between two stands of front, the rear side of stand board is fixed on the upper portion of stand, and the top of stand is higher than the stand board, and the stand leading flank of stand board top is equipped with riser 21, and the riser constitutes the vertical face and the horizontal plane of flexible stand stair structure of lift with the stand board respectively, and the top surface of stand is equipped with running roller 22, and when the flexible stand of lift expandes, the front side bottom surface of upper strata (the back that is to arranging around promptly) stand board erects on the running roller of the lower floor (the front that is to arranging around promptly) stand board top surface. The stand is L-shaped, a cross rod 23 is fixed at the bottom of the stand, a land wheel 24 is arranged at the bottom of the cross rod, the stand cross rod of the support in the rear layer can be connected to the outer side of the stand cross rod of the support in the front layer in a sliding mode, a connecting rod 25 is transversely arranged at the lower part of the stand in the same group, an inclined strut 26 is further arranged on the stand, the lower end of the inclined strut is fixed with the end part of the connecting rod, the upper end of the inclined strut is fixed with the rear side of the watching platform plate, and.
The number of piles of support frame is the same with the number of piles of back stand, and each layer of support frame is equal altitude structure and its top structure looks the bottom structure looks adaptation of rack after with, and the support frame top is equipped with the constant head tank that is used for fixed back to see rack bottom, and the support frame bottom is equipped with the land wheel.
Example 2
The stand board of the embodiment 2 is provided with a detachable folding seat 7 (see fig. 2, fig. 3 and fig. 5, wherein fig. 5 is a contracted state), and the height of the folding seat after being folded is lower than the height difference between two adjacent stand boards; the folding seat comprises a rectangular seat 27 (see fig. 12 and fig. 13, wherein fig. 13 is a folding state), the bottom surface of the rectangular seat is tightly attached to the stand plate, the rear side surface of the rectangular seat is tightly attached to the vertical plate, the bottom surface and the rear side surface of the rectangular seat are respectively provided with a buckle joint 28, the stand plate and the vertical plate are provided with a buckle groove corresponding to the buckle joint, the buckle groove on the vertical plate is L-shaped, the folding seat is fixed with the stand plate and the vertical plate through the buckle joint and the buckle groove, and the stand plate is also provided with an anti-disengagement mechanism of the folding seat; 11 rows of seats are arranged on the front and rear viewing stands, each row of seats is provided with 25 seats, the seats are divided into three areas, a passageway 38 is arranged between every two adjacent areas, and the number of the seats on the whole lifting telescopic viewing stand is 550; the rest is the same as in example 1.
Example 3
The two ends of the stand plate of the embodiment 3 are provided with fences 8 (see fig. 4, fig. 6 and fig. 9, wherein fig. 6 is a contracted state), the fences are fixedly inserted into the stand plate, and the upper ends of the fences are in an outward inclined structure; when the telescopic elevating/lowering stand is retracted, the fences on both sides of the upper stand plate are retracted into the fences on both sides of the lower stand plate, and the rest is the same as in embodiment 1 or embodiment 2.
Example 4
In embodiment 4 shown in fig. 10, the front stand and the rear stand have the same structure, and the height difference between the adjacent two stand plates on the front stand or the rear stand is the same; the front side of the front layer 29 (first layer) of the rear stand and the rear side of the rear layer 30 of the front stand are both provided with hinge lugs 31, the hinge lugs are provided with hinge shaft holes, when the rear stand is lifted to the support frame in a contraction state, the hinge lugs on the rear stand are hinged with the hinge lugs on the front stand through (inserted) hinge shafts 32; the front-view stand and the rear-view stand are pulled apart and extended towards one side far away from the support frame, the front-view stand and the rear-view stand are overlapped up and down in opposite directions to form a platform-shaped structure (see fig. 11), and the rest is the same as that of the embodiment 1.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (5)
1. A lifting telescopic stand is characterized by comprising a stand frame, a support frame (1) and a lifting frame (2), wherein the stand frame comprises a front stand frame (3) and a rear stand frame (4), the front stand frame and the rear stand frame are of telescopic structures formed by a plurality of layers of supports (5) which are arranged in a front-back direction in a stacking mode, the height of the rear layer of supports is larger than that of the front layer of supports, each layer of supports is provided with a stand plate (6), the height of the stand plates is gradually increased from the front layer of the stand frame to the rear layer of the stand frame, the support frame is of a plurality of layers of telescopic structures which are arranged in a front-back direction in a stacking mode, the height of the support frame is equivalent to that of the last stand plate on the front stand frame, and the lifting frame is positioned on the rear side of the support frame; when the lifting telescopic stand is used, the lifting frame lifts the rear stand in a contracted state to the support frame in a contracted state, the rear stand and the support frame are pulled forwards and extended, the front stand is arranged on the front side of the expanded rear support frame, the rear end part of the front stand is tightly attached to the front end part of the support frame, the front stand is pulled forwards and extended, and the front stand and the stand boards on the rear stand form a continuous stepped structure; the lifting frame is semi-surrounded on the rear stand frame in a contraction state from the rear side and two sides, a lifting motor (9) for driving the rear stand frame to lift is arranged on the lifting frame, the lifting motor is connected with winches (11) arranged on two sides through a transmission shaft (10), steel wire ropes (12) on the winches on the two sides are fixed with a cross frame (14) through pulley mechanisms (13), and the rear stand frame is placed on the cross frame; supporting legs are arranged at four corners of the lifting frame, the supporting legs comprise cross arms (15) extending outwards at the four corners of the lifting frame, screw rod nuts (16) and screw rods (17) in threaded connection with the screw rod nuts are arranged on the cross arms, hand wheels (18) are arranged at the top ends of the screw rods, and supporting plates (19) are arranged at the bottom ends of the screw rods; the support comprises a plurality of groups of stand columns (20) which are arranged in pairs, the distance between the two stand columns at the rear layer is larger than the distance between the two stand columns at the front layer, the rear side of the stand plate is fixed at the upper parts of the stand columns, the top ends of the stand columns are higher than the stand plate, the front side surface of the stand column above the stand plate is provided with a vertical plate (21), the vertical plate and the stand plate respectively form a vertical surface and a horizontal surface of a ladder structure of the lifting telescopic stand platform, the top surfaces of the stand columns are provided with rollers (22), and when the lifting telescopic stand platform is unfolded, the bottom surface of the front side of the stand plate at the upper layer is erected on the rollers at the top surfaces of the stand columns at the lower layer; the folding seat comprises a rectangular seat (27), the bottom surface of the rectangular seat is tightly attached to the stand plate, the rear side surface of the rectangular seat is tightly attached to the vertical plate, fastening joints (28) are arranged on the bottom surface and the rear side surface of the rectangular seat, fastening grooves corresponding to the fastening joints are arranged on the stand plate and the vertical plate, the fastening grooves on the vertical plate are L-shaped, the folding seat is fixed with the stand plate and the vertical plate through the fastening joints and the fastening grooves, and an anti-disengagement mechanism of the folding seat is also arranged on the stand plate; the front stand and the rear stand have the same structure, and the height difference between the two adjacent stands on the front stand or the rear stand is the same; the front side of the front layer (29) of the rear stand and the rear side of the rear layer (30) of the front stand are both provided with hinge lugs (31), the hinge lugs are provided with hinge shaft holes, and when the rear stand is lifted to the support frame in a contraction state, the hinge lugs on the rear stand are hinged with the hinge lugs on the front stand through hinge shafts (32); the front stand and the rear stand are pulled open and extended towards one side far away from the support frame, and the front stand and the rear stand are overlapped up and down in the opposite direction to form a platform-shaped structure.
2. The lifting telescopic stand according to claim 1, wherein a detachable folding seat (7) is arranged on the stand plate, the height of the folding seat after being folded is lower than the height difference between two adjacent stand plates, fences (8) are arranged at two ends of each stand plate, the fences are fixedly inserted into the stand plate, and the upper ends of the fences are outwards in an inclined structure; when the lifting telescopic stand is contracted, the fences at two sides of the stand plate on the upper layer are contracted in the fences at two sides of the stand plate on the lower layer.
3. The lifting telescopic stand as claimed in claim 1, wherein the uprights are L-shaped, cross bars (23) are fixed to the bottoms of the uprights, ground wheels (24) are arranged at the bottoms of the cross bars, the upright cross bars of the rear supports are slidably coupled to the outer sides of the upright cross bars of the front supports, connecting rods (25) are transversely arranged at the lower portions of the same group of uprights, inclined supporting rods (26) are further arranged on the uprights, the lower ends of the inclined supporting rods are fixed to the end portions of the connecting rods, the upper ends of the inclined supporting rods are fixed to the rear sides of the stand plates, and the inclined supporting rods on the two uprights are symmetrically arranged.
4. The lifting telescopic stand as claimed in claim 1, wherein the number of the layers of the supporting frame is the same as that of the rear stand, each layer of the supporting frame is of an equal-height structure, the top structure of the supporting frame is matched with the bottom structure of the rear stand, the top of the supporting frame is provided with a positioning groove for fixing the bottom of the rear stand, and the bottom of the supporting frame is provided with a land wheel.
5. The lifting telescopic stand according to any one of claims 1 to 4, wherein telescopic motors (33) for driving the stand or the support frame to stretch and retract are arranged below the front-layer stand board of the stand and the front-layer lower part of the support frame, the telescopic motors are arranged between two upright posts in the same group, the telescopic motors drive rollers through chains, and traction ropes are arranged on the rollers; a speed reducer (34) is arranged between the lifting motor and the transmission shaft, the rear end of the lifting motor is connected with a manual wheel (35), the transmission shaft is also connected with a cam switch (36) and an encoder (37) which are used for controlling the speed reduction and stop of the lifting motor, and the bottoms of the lifting frame and the stand are provided with fixing plates which can be fixed with the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988658.0A CN111206801B (en) | 2019-10-17 | 2019-10-17 | Lifting telescopic stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988658.0A CN111206801B (en) | 2019-10-17 | 2019-10-17 | Lifting telescopic stand |
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| Publication Number | Publication Date |
|---|---|
| CN111206801A CN111206801A (en) | 2020-05-29 |
| CN111206801B true CN111206801B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910988658.0A Active CN111206801B (en) | 2019-10-17 | 2019-10-17 | Lifting telescopic stand |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827737B (en) * | 2020-07-23 | 2022-04-19 | 湖北保马体育发展有限公司 | Telescopic movable stand |
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| CN201521122U (en) * | 2009-09-17 | 2010-07-07 | 斯毕士舞台工程技术(北京)有限公司 | Telescopic movable changing device for stand viewing angles |
| EP2604776A1 (en) * | 2011-12-15 | 2013-06-19 | COS nv | Telescopic grandstand with multiple telescopic partial grandstands |
| CN206238843U (en) * | 2016-10-17 | 2017-06-13 | 浙江大丰体育设备有限公司 | Semi-automatic the turning over of movable stand seat puts device |
| CN206801111U (en) * | 2017-04-24 | 2017-12-26 | 深圳优艺体育设备有限公司 | A kind of portal frame movable stand |
| CN207847172U (en) * | 2018-01-29 | 2018-09-11 | 陕西同辉体育用品制造有限公司 | A kind of Multifunctional mobile grandstand |
| CN109441153A (en) * | 2018-12-13 | 2019-03-08 | 张旭 | Foldable auditorium module and its method |
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- 2019-10-17 CN CN201910988658.0A patent/CN111206801B/en active Active
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|---|---|---|---|---|
| CN201521122U (en) * | 2009-09-17 | 2010-07-07 | 斯毕士舞台工程技术(北京)有限公司 | Telescopic movable changing device for stand viewing angles |
| EP2604776A1 (en) * | 2011-12-15 | 2013-06-19 | COS nv | Telescopic grandstand with multiple telescopic partial grandstands |
| CN206238843U (en) * | 2016-10-17 | 2017-06-13 | 浙江大丰体育设备有限公司 | Semi-automatic the turning over of movable stand seat puts device |
| CN206801111U (en) * | 2017-04-24 | 2017-12-26 | 深圳优艺体育设备有限公司 | A kind of portal frame movable stand |
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| CN109441153A (en) * | 2018-12-13 | 2019-03-08 | 张旭 | Foldable auditorium module and its method |
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| CN111206801A (en) | 2020-05-29 |
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