CN115142654B - Lifting folding foot rest system applied to capital construction - Google Patents

Abstract

The application discloses a lifting folding foot rest system applied to a foundation, which comprises a foot rest seat plate and a pair of lifting groups arranged above the foot rest seat plate, wherein a transmission group for driving the foot rest seat plate to lift is arranged at the right end of the lifting groups, pipe sleeves are vertically welded at corners of the top surface of the foot rest seat plate, a rectangular person placing area and a triangular stabilizing area are formed by surrounding a plurality of pipe sleeves on the top surface of the foot rest seat plate, the lifting groups and the transmission groups are arranged above the person placing area, the transmission groups comprise a driving screw rod and a plurality of transmission screw rods which are sleeved with a right sliding sleeve and are vertically connected end to end, and a servo motor for driving the driving screw rod to rotate is arranged at the bottom end of the driving screw rod. According to the application, the lifting group consisting of the lifting rods hinged with each other is arranged on the foot rest seat plate for lifting and heightening, so that the lifting height of a worker can be adjusted at will, the worker can work in a standing way, the body strength is reduced, and in addition, the lifting group can be folded without disassembly and assembly, so that the lifting device has practical value.

Description

Lifting folding foot rest system applied to capital construction

Technical Field

The application relates to the technical field of engineering facilities, in particular to a lifting folding foot rest system applied to a foundation.

Background

In the tunnel civil engineering process, a scaffold is often used for carrying out a lifting platform so as to facilitate workers to lift off. The existing scaffold is divided into a pedal, an inclined stay bar and a portal frame, when the assembly is increased, the existing scaffold needs to be matched by multiple persons, and the higher the position is, the more the scaffold needs to be matched by multiple persons to transfer all components of the scaffold.

The application number is CN201820308494.3 discloses an aluminum alloy scaffold, and this aluminum alloy scaffold is used for the workman to climb mainly through setting up a plurality of horizontal poles between two adjacent pole setting, need not to assemble in addition and hangs the ladder, has solved and has assembled the degree of difficulty and has reduced, the transportation is troublesome and the unsafe problem of workman's climbing. The setting of its horizontal pole strengthens holistic structural strength, and overall structure is simple, and stability improves. However, the portal is heavy, the transfer is laborious and unsafe conditions are likely to occur. In addition, the superimposed height of the scaffold is fixed, and the unmatched height of the top surface of the scaffold and the height of the field working environment are inevitably generated, so that workers can either bend down or squat to work, and the labor intensity is increased.

Disclosure of Invention

In order to overcome the defects in the prior art, the application aims to provide a lifting folding foot stool system applied to a foundation, so as to solve the problems in the prior art.

In order to achieve the above purpose, the application provides a lifting folding foot rest system applied to a capital construction, which comprises a foot rest seat plate and a pair of lifting groups arranged above the foot rest seat plate, wherein the right end of each lifting group is provided with a transmission group for driving the foot rest seat plate to lift, the corners of the top surface of the foot rest seat plate are vertically welded with pipe sleeves, the top surface of the foot rest seat plate is surrounded by a plurality of pipe sleeves to form a rectangular person placing area and a triangular stable area, the lifting groups and the transmission groups are all positioned above the person placing area, each lifting group comprises a plurality of lifting rods and a right sliding sleeve and a left sliding sleeve, the middle parts of the right sliding sleeves are mutually hinged, the two ends of the lifting rods are connected with a linkage sliding sleeve in a rotating manner, the two ends of each lifting rod are respectively connected with a right sliding sleeve, a left sliding sleeve and a linkage sliding sleeve in a corresponding rotating manner, in addition, the right side is respectively connected with a linkage rod and a movable rod in a rotating manner, the tops of the lifting rods and the ends of the movable rods are hinged, the lifting rods positioned above the person placing area are respectively, a plurality of lifting rod tops are respectively provided with a pedal plates, and a driving screw rod is arranged at the bottoms of the driving screw rods, and the driving screw rods are vertically connected with the driving screw rods and the driving screw rods are connected with the driving screw rods.

As the further improvement of this technical scheme, the mouth of dodging that is the diamond shape is offered at one side middle part of lifter, one side of right side sliding sleeve, left sliding sleeve and linkage sliding sleeve all is equipped with the opening and opposite side tangential direction is equipped with the loop bar post that cup joints with the sliding rod tip, right side sliding sleeve, left side sliding sleeve and linkage sliding sleeve's lateral surface and with loop bar post syntropy and coplanar on be equipped with the round pin post, the circular arc groove has been seted up at the front end top of loop bar post, cup joint the bayonet lock with circular arc groove joint on the round pin post, wherein the quantity of loop bar post and round pin post on the linkage sliding sleeve is two rows.

As a further improvement of the technical scheme, an inner cavity penetrating through one end of the movable rod is formed in the side central line of the movable rod, the linkage rod is matched with the inner cavity in a clamping mode, and the outer ends of the linkage rod and the movable rod are respectively connected with corresponding pin columns in a rotating mode.

As the further improvement of this technical scheme, the top center of initiative lead screw and transmission lead screw all is equipped with the reducing section, top one side of extension pipe is equipped with the spacing ring that cup joints with the reducing section, wherein be located the inboard of the right sliding sleeve of top be equipped with the screw thread and with initiative lead screw and transmission lead screw threaded connection, the height of right sliding sleeve is greater than the height of spacing ring, coaxial coupling has the worm on servo motor's the output shaft, the bottom coaxial coupling of initiative lead screw has the worm wheel with worm meshing, a plurality of welding has the square board between the pipe box, wherein the welding has the holding ring on the square board of being located under the initiative lead screw, and the inside of holding ring inlays and is equipped with the bearing with initiative lead screw coaxial coupling, in addition be located the welding on the square board of servo motor output shaft outer end under with its output shaft grafting the internally mounted in holding area has the battery.

As the further improvement of this technical scheme, square hole has been seted up at the top surface center of reducing section, the bottom center of transmission lead screw is equipped with the square post of pegging graft with the square hole, the vertical welding in bottom of extension pipe has the draw pipe of pipe box grafting, the top inboard of extension pipe and be 90 degrees contained angles department welding with the spacing ring have the square, two relatively be provided with the stiffening rod between the square, the both ends of stiffening rod are equipped with the connecting block with square joint, and both pass through and be trapezoidal pin through connection of falling.

As a further improvement of the technical scheme, a plurality of support groups which are vertically overlapped and arranged are arranged right above the stabilizing zone, each support group comprises a support pipe and a stabilizing pipe which are connected with a pipe sleeve, the stabilizing pipe is located at the corner of the outermost end of the stabilizing zone, a triangular reinforcing frame is connected between the support pipe and the top of the stabilizing pipe, and the left sliding sleeve and the left linkage sliding sleeve are sleeved with the support pipe and can slide.

As a further improvement of the technical scheme, the bottom of the supporting tube is vertically welded with an inserting column which is spliced with the pipe sleeve, one side of the top end of the supporting tube is provided with a bump, one side of the top end of the stabilizing tube is provided with a lapping block with the vertical section being L-shaped, one end of the reinforcing frame is matched with the lapping block in a clamping manner, the other two ends of the reinforcing frame are provided with bifurcation blocks which are clamped with the bumps, and the bumps are connected with the bifurcation blocks in a penetrating manner through inverted trapezoidal pins.

As a further improvement of the technical scheme, an auxiliary stay bar is connected between two mutually hinged lifting rods, a convex column which is rotationally connected with the top end of the auxiliary stay bar is arranged in the middle of the side surfaces of the upper half parts of the mutually hinged lifting rods, and a clamping sleeve is rotationally connected with the bottom end of the auxiliary stay bar and is sleeved with the lower half parts of the mutually hinged lifting rods and can slide.

As the further improvement of this technical scheme, the lateral surface of cutting ferrule is equipped with the go-between rather than inside being linked together, the bottom of auxiliary stay is equipped with the pole cover that cup joints with the go-between, the footboard is by square tube welding into square frame construction and its four corner all welds the loop cover, equidistant welding of top surface of footboard has a plurality of steel wire nets.

As a further improvement of the technical scheme, a through hole is formed in the square plate between the front square tube sleeves, a protective door is hinged in the through hole, threaded supporting rods are connected with the bottom ends of the two middle tube sleeves in a threaded mode, and universal wheels are mounted at corners of two ends of the bottom surface of the foot rest seat plate.

Compared with the prior art, the application has the beneficial effects that:

1. this be applied to in the folding foot rest system of lift of capital construction, through arranging the lifting group that comprises a plurality of mutually articulated lifter on the foot rest bedplate and go up and down to increase, set up the transmission group that drive lifting group goes up and down and the support group that the guarantee lifting group is stable on the foot rest bedplate for workman's lift height can be adjusted wantonly, so that the workman stands the operation, lighten physical strength, the lifting group can draw in and need not the dismouting in addition, as long as the tubular structure of transmission group and support group can overlap the lift space of lifting group, it is convenient to use, has practical value.

2. The lifting folding foot rest system applied to the foundation is characterized in that a stabilizing area is arranged at one end of a foot rest seat plate, and the stability of a triangle is utilized to strengthen the overall stability of a lifting group.

3. The lifting folding foot rest system is applied to a foundation, the left sliding sleeve, the right sliding sleeve and the linkage sliding sleeve are connected through rotation at two ends of the lifting rods, so that a plurality of pairs of lifting rods hinged with each other are connected into a whole, or lifted and unfolded, or folded down, the lifting folding foot rest system is beneficial to the whole treatment and placement of lifting groups, the dismounting and the installation are not needed, and the working time is saved.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present application, and are not particularly limited. Those skilled in the art with access to the teachings of the present application can select a variety of possible shapes and scale sizes to practice the present application as the case may be.

FIG. 1 is a schematic diagram of the overall structure of embodiment 1;

FIG. 2 is a second schematic overall structure of embodiment 1;

FIG. 3 is a schematic view of the whole partial assembly structure of embodiment 1;

FIG. 4 is a schematic view of the structure of a stand plate according to embodiment 1;

FIG. 5 is a schematic diagram of an assembly structure of two lifting sets according to embodiment 1;

FIG. 6 is a schematic view of a partially assembled structure of a lifting assembly according to embodiment 1;

fig. 7 is a schematic view of the pedal structure of embodiment 1;

FIG. 8 is a schematic view of an assembled structure of a single support group according to embodiment 1;

FIG. 9 is a split view of the support assembly of embodiment 1;

FIG. 10 is a schematic view of the bottom assembly structure of the transmission set of embodiment 1;

FIG. 11 is a partial exploded view of the drive train assembly of embodiment 1;

FIG. 12 is a view showing the lift bar of example 1 in a split manner;

FIG. 13 is a schematic view of the structure of the linkage sliding sleeve of the embodiment 1;

FIG. 14 is a schematic view of the right sliding sleeve of embodiment 1;

fig. 15 is a schematic view of the assembly structure of the linkage rod of embodiment 1;

fig. 16 is a schematic diagram showing the assembly structure of the auxiliary stay bar of embodiment 1.

The meaning of each reference sign in the figure is:

100. a foot rest seat board;

110. a pipe sleeve; 111. a protective door; 120. a person placing area; 130. a stabilization zone; 140. a storage battery; 150. a threaded stay bar; 160. a positioning ring; 170. a positioning sleeve; 180. a universal wheel;

200. a lifting group;

210. a lifting rod; 211. an avoidance port; 212. a slide bar; 213. a convex column; 220. a right sliding sleeve; 221. a sleeve rod column; 222. an arc groove; 223. a pin; 230. a left sliding sleeve; 240. a linkage rod; 241. a movable rod; 242. an inner cavity; 250. an auxiliary stay bar; 251. a rod sleeve; 252. a cutting sleeve; 253. a communication ring; 260. a pedal; 261. a ring sleeve; 262. a steel wire mesh; 270. a bayonet lock; 271. a pin ring; 280. a linkage sliding sleeve;

300. a transmission group;

310. a servo motor; 311. a worm; 312. a worm wheel; 320. a driving screw rod; 321. a reducing section; 322. square holes; 330. a transmission screw rod; 331. square columns; 340. an extension tube; 341. a pipe shrinking; 342. a limiting ring; 343. a square block; 350. a reinforcing rod; 351. a connecting block;

400. a support group;

410. a support tube; 411. inserting a column; 412. a bump; 420. a stabilizing tube; 421. building blocks; 430. a reinforcing frame; 431. a bifurcated block.

Detailed Description

The details of the application will be more clearly understood in conjunction with the accompanying drawings and description of specific embodiments of the application. However, the specific embodiments of the application described herein are for the purpose of illustration only and are not to be construed as limiting the application in any way. Given the teachings of the present application, one of ordinary skill in the related art will contemplate any possible modification based on the present application, and such should be considered to be within the scope of the present application. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "central axis," "longitudinal," "transverse," "length," "width," "thickness," "vertical," "horizontal," "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like as used herein are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. Furthermore, in the description of the application, the meaning of "a number" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, 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 description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

Referring to fig. 1 to 16, the present application provides a lifting folding foot stool system for a foundation, which includes a foot stool plate 100 and a pair of lifting sets 200 installed above the foot stool plate, wherein a driving set 300 for driving the lifting sets 200 to lift is installed at the right end of the lifting sets 200, and the lifting sets 200 are driven to lift by the driving set 300 so as to support a worker above the lifting sets 200 to lift off. The top surface corner of foot rest bedplate 100 all has the pipe box 110 in the perpendicular welding, and the top surface of foot rest bedplate 100 just is enclosed into by a plurality of pipe boxes 110 and is rectangular put people district 120 and is triangle-shaped's stable district 130, and lifting group and drive train 300 all are located and put people district 120 top, and lifting group 200 utilizes stable district 130 self to have triangle-shaped stability and makes overall structure more stable. The lifting group 200 includes a plurality of lifting rods 210 hinged to each other in the middle and a right sliding sleeve 220 and a left sliding sleeve 230 connected to both ends of the lifting rods 210, and the number of the lifting rods 210 can be customized according to the on-site lifting height, so as to meet the lifting height required after the lifting rods 210 hinged to each other are unfolded. The two ends of the adjacent and non-hinged lifting rods 210 are rotatably connected with a linkage sliding sleeve 280, the linkage sliding sleeve 280 is utilized to drive the two adjacent groups of hinged lifting rods 210, two ends of the lifting rods 210 are respectively inserted with a sliding rod 212 which is correspondingly rotatably connected with the right sliding sleeve 220, the left sliding sleeve 230 and the linkage sliding sleeve 280, and the lifting rods 210 can freely stretch by utilizing the sliding rods 212 due to different folding and unfolding widths of the lifting rods 210, so that the lifting motion of the lifting rods 210 can be smoothly completed. In addition, the linkage rod 240 and the movable rod 241 are rotatably connected between the right sliding sleeve 220 and the linkage sliding sleeve 280 and between two adjacent linkage sliding sleeves 280, the linkage rod 240 is hinged with the end part of the movable rod 241, and the two adjacent lifting rods 210 are smoothly folded and unfolded by further utilizing the traction of the foldable linkage rod 240 and the foldable movable rod 241. Meanwhile, a linkage rod 240 and a movable rod 241 are rotatably connected between the left side left sliding sleeve 230 and the linkage sliding sleeve 280 and between two adjacent linkage sliding sleeves 280. A step 260 is provided on top of the lifting bar 210 just above so that a worker stands on the step 260 while being lifted off to perform a related work.

The transmission group 300 comprises a driving screw rod 320 and a plurality of transmission screw rods 330 which are sleeved with the right sliding sleeve 220 and are vertically connected end to end, a servo motor 310 for driving the driving screw rod 320 to rotate is arranged at the bottom end of the driving screw rod 320, threads are arranged on the inner side of the right sliding sleeve 220 at the top and are in threaded connection with the driving screw rod 320 and the transmission screw rods 330, the servo motor 310 is started to forward rotate to drive the two groups of driving screw rods 320 and the transmission screw rods 330 to rotate in the same direction, the right sliding sleeve 220 at the top is driven to do linear ascending motion along the middle axis direction, the uppermost pair of hinged lifting rods 210 are unfolded, the pulling action of the linkage sliding sleeve 280 is utilized, the pairs of hinged lifting rods 210 at the bottom are unfolded sequentially, the thread self-locking condition is that the thread ascent angle is smaller than the equivalent friction angle, and according to the mechanical theory knowledge, the driving screw rod 320 can only rotate to drive the right sliding sleeve 220 at the top to ascend and descend due to self-weight, namely a worker can not stand on a pedal 260. The right sides of the driving screw 320 and the driving screw 330 are respectively provided with a plurality of extension pipes 340 which are vertically connected end to end, and the extension pipes 340 are used for supporting the driving screw 320 and the driving screw 330 to be vertically arranged. The centers of the top ends of the driving screw rod 320 and the driving screw rod 330 are respectively provided with a diameter reducing section 321, namely, the outer diameter of the diameter reducing section is smaller than the outer diameter of the screw rod, so that a limiting structure is formed. A limit ring 342 sleeved with the diameter-reducing section 321 is arranged at one side of the top end of the extension pipe 340, so that the driving screw 320 and the driving screw 330 are limited to rotate stably. The right sliding sleeve 220 has a height greater than the height of the limit ring 342, so that when the right sliding sleeve 220 slides through the limit ring 342, it can be simultaneously screwed to the adjacent two driving screw rods 330, so as to smoothly transition.

Specifically, the middle part of one side of lifter 210 has been seted up and has been the mouth 211 dodging that is the diamond, one side of right side sliding sleeve 220, left side sliding sleeve 230 and linkage sliding sleeve 280 all is equipped with the opening and opposite side tangential direction is equipped with the loop bar post 221 that cup joints with the end of slide bar 212, right side sliding sleeve 220, left side sliding sleeve 230 and linkage sliding sleeve 280's lateral surface and with loop bar post 221 syntropy and coplanar on be equipped with round pin post 223, circular arc groove 222 has been seted up at the front end top of loop bar post 221, cup joint the bayonet lock 270 with circular arc groove 222 joint on the pin post 223, the other end of bayonet lock 270 is equipped with the cotter ring 271 that cup joints with the pin post 223. Wherein the number of sleeve bars 221 and pins 223 on the linkage slide sleeve 280 is two.

Specifically, an inner cavity 242 penetrating one end of the movable rod 241 is formed in a side central line of the movable rod 241, and the linkage rod 240 is in clamping fit with the inner cavity 242, so that after the lifting rod 210 is folded, the linkage rod 240 and the movable rod 241 can be combined and folded. The outer ends of the linkage rod 240 and the movable rod 241 are respectively in rotary connection with the corresponding pin 223, and the outer ends of the pin 223 are in threaded connection with nuts, so that the linkage rod 240 and the movable rod 241 are prevented from slipping.

Further, the output shaft of the servo motor 310 is coaxially connected with a worm 311, the bottom end of the driving screw 320 is coaxially connected with a worm wheel 312 meshed with the worm 311, square plates are welded between the plurality of sleeves 110, and the height of the square plates is designed according to the space required by the transmission set 300 so as to store the transmission set 300. The square plate right below the driving screw 320 is welded with a positioning ring 160, and a bearing coaxially connected with the driving screw 320 is embedded in the positioning ring 160, so that the driving screw 320 stably stands and rotates, and further, the driving screws 330 above the driving screw are driven to stably rotate. In addition, a square plate positioned right below the outer end of the output shaft of the servo motor 310 is welded with a positioning sleeve 170 which is inserted with the output shaft of the servo motor, so that the worm 311 stably rotates, and the inner side of the square plate is welded with a flat plate which is used for installing and fixing the servo motor 310. The storage battery 140 is installed in the stabilizing area 130 and electrically connected with the servo motor 310 through a wire, so as to provide power for the servo motor 310, and the whole foot rest seat board 100 is transferred and used.

Specifically, the center of the top surface of the reducing section 321 is provided with a square hole 322, the center of the bottom end of the transmission screw rod 330 is provided with a square column 331 inserted into the square hole 322, and the driving screw rod 320 and the plurality of transmission screw rods 330 can synchronously rotate by utilizing the connection between the square column 331 and the square hole 322. The bottom of the extension pipe 340 is vertically welded with a shrinkage pipe 341 inserted by the pipe sleeve 110, which is beneficial to the disassembly and assembly of the extension pipe 340, so as to smoothly stack and heighten. The inside of top of extension pipe 340 and be 90 degrees contained angles department welding with spacing ring 342 and have square 343, be provided with stiffening rod 350 between two relative square 343, stiffening rod 350's both ends are equipped with the connecting block 351 of square 343 joint, and both pass through being trapezoidal pin through connection of falling for two relative extension pipes 340 are more firm, and the pin that is trapezoidal is then not down to slide, do benefit to stiffening rod 350 and the firm connection of extension pipe 340.

In addition, a plurality of support groups 400 are installed right above the stabilization zone 130 in a vertically stacked arrangement, the support groups 400 including support pipes 410 and stabilization pipes 420 connected to the pipe sleeves 110, and the heights of the square plates are designed according to the space required by the support groups 400 so as to store the support groups 400. Wherein the stabilizing tube 420 is located at the corner of the outermost end of the stabilizing zone 130, a triangular reinforcing frame 430 is connected between the supporting tube 410 and the top of the stabilizing tube 420, and the triangular stability is further utilized to increase the overall stability of the supporting set 400, so as to support the lifting set 200 to stably lift. The left sliding sleeve 230 and the left linkage sliding sleeve 280 are sleeved with the supporting tube 410 and can slide, and the supporting group 400 and the transmission group 300 are connected with the two sides of the lifting group 200, so that the left sliding sleeve and the left linkage sliding sleeve play a role in guiding and stabilizing.

In this embodiment, when the transmission set 300 and the support set 400 are removed, only a lowermost set of structures is required to be left so as to place a plurality of lifting sets 200, and when the lifting sets 200 are used next time, only the structures of the transmission set 300 and the support set 400 are required to be correspondingly overlapped along with the lifting of the lifting sets 200, so that the whole installation is convenient.

Specifically, a post 411 inserted into the pipe sleeve 100 is vertically welded to the bottom end of the support pipe 410, so that the support pipe 410 is stably stacked and heightened. The top end side of the supporting tube 410 is provided with a bump 412, the top end side of the stabilizing tube 420 is provided with a lapping block 421 with an L-shaped vertical cross section, one end of the reinforcing frame 430 is matched with the lapping block 421 in a clamping manner, the other two ends of the reinforcing frame 430 are provided with a forked block 431 which is clamped with the bump 412, the bump 412 and the forked block 431 are connected in a penetrating manner through a pin which is in an inverted trapezoid shape, the structure is beneficial to the rapid disassembly and assembly of the reinforcing frame 430, and the stacking firmness of the supporting tube 410 and the stabilizing tube 420 is improved.

Further, an auxiliary stay 250 is connected between the two lifting rods 210 hinged to each other, which can increase the stability between the lifting rods 210, and further ensure the safety of the person standing on the support pedal 260. The middle of the side surfaces of the upper half parts of the two lifting rods 210 hinged with each other is provided with a convex column 213 which is rotationally connected with the top ends of the auxiliary supporting rods 250, the bottom ends of the auxiliary supporting rods 250 are rotationally connected with a clamping sleeve 252, and the clamping sleeve 252 is sleeved with and can slide with the lower half parts of the two lifting rods 210 hinged with each other, namely, the mobility of the auxiliary supporting rods 250 is utilized, so that the position is changed along with the folding or unfolding of the lifting rods 210, and the blocking of the movement of the lifting rods 210 is avoided.

Specifically, the outer side surface of the clamping sleeve 252 is provided with a communication ring 253 communicated with the inside of the clamping sleeve, and the lifting rod 210 is extruded by screwing in a bolt, so that the auxiliary supporting rod 250 does not slide, namely, a stable support is formed after the lifting rod 210 stops lifting. The bottom of the auxiliary stay bar 250 is provided with a rod sleeve 251 sleeved with the communication ring 253, the pedal 260 is welded into a square frame structure by a square pipe, and the four corners of the pedal are welded with the ring sleeve 261, so that the lifting group 200 can smoothly slide and lift against the pedal 260. A plurality of steel wires 262 are welded to the top surface of the step 260 at equal intervals so that the step 260 supports a standing person.

Besides, the square plate between the front sleeves 110 is provided with a through hole, the inside of the through hole is hinged with a protective door 111, the bottom ends of the two sleeves 110 in the middle are connected with a threaded stay bar 150 in a threaded manner, and when the foot rest seat plate 100 is placed on uneven ground, the foot rest seat plate 100 can be supported in an adjustable manner by rotating the threaded stay bar 150 to enable the foot rest seat plate to be lifted or lowered to be contacted with the ground due to the fact that the span of the foot rest seat plate 100 is larger. Universal wheels 180 are installed at corners of two ends of the bottom surface of the foot rest seat plate 100, and the universal wheels 180 preferably have a braking function, so that the foot rest seat plate 100 is stably placed, and the safety of the lifting work of workers is guaranteed.

When the foot rest seat board is used, a worker stands on the pedal 260, then another person transmits the structures of the transmission group 300 and the support group 400 to be stacked one by one to be heightened, the servo motor 310 is started to forward rotate to drive the two groups of driving screw rods 320 and the transmission screw rods 330 to rotate in the same direction, the uppermost right sliding sleeve 220 is driven to do linear ascending motion along the axis direction of the driving screw rods, the uppermost pair of hinged lifting rods 210 are unfolded, the traction effect of the linkage sliding sleeve 280 is utilized, a plurality of pairs of hinged lifting rods 210 below are unfolded in sequence, the rapid ascending effect is achieved, after the lifting operation is completed, the structures of the transmission group 300 and the support group 400 are removed in sequence from the top, the structures are placed in a space surrounded by the square boards of the foot rest seat board 100, the servo motor 310 is started to reversely drive the lifting rods 210 to be folded to be integrally lowered until the lifting rods 210 are gathered on the driving screw rods 320, and the whole occupied space of the foot rest seat board 100 is reduced, and the foot rest 100 is convenient to transfer and store.

For all articles and references disclosed, including patent applications and publications, incorporated herein by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.

The foregoing embodiments are merely illustrative of the technical concept and features of the present application, and are intended to enable those skilled in the art to understand the present application and to implement the same, not to limit the scope of the present application. All equivalent changes or modifications made in accordance with the spirit of the present application should be construed to be included in the scope of the present application.

Claims (6)

1. The utility model provides a be applied to folding foot rest system of lift of capital construction, includes foot rest bedplate (100) and a pair of lift group (200) of top installation, drive group (300) that drive its lift are installed to the right-hand member of lift group (200), drive group (300) are including initiative lead screw (320) and a plurality of transmission lead screw (330) that are vertical end-to-end connection, servo motor (310) that drive its rotation are installed to the bottom of initiative lead screw (320), the right side of initiative lead screw (320) and transmission lead screw (330) all is provided with a plurality of extension pipes (340) that are vertical end-to-end connection; the top surface corners of the foot rest seat plate (100) are vertically welded with pipe sleeves (110), a rectangular person placing area (120) and a triangular stabilizing area (130) are formed by surrounding the top surface of the foot rest seat plate (100) by a plurality of pipe sleeves (110), and the lifting group and the transmission group (300) are positioned above the person placing area (120);

the method is characterized in that: the lifting group (200) comprises a right sliding sleeve (220) and a left sliding sleeve (230), wherein the middle parts of the right sliding sleeve and the left sliding sleeve are mutually hinged with lifting rods (210) and two ends of the lifting rods (210), a linkage sliding sleeve (280) is rotationally connected between two adjacent and non-hinged ends of the lifting rods (210), sliding rods (212) which are correspondingly rotationally connected with the right sliding sleeve (220), the left sliding sleeve (230) and the linkage sliding sleeve (280) are respectively inserted at two ends of the lifting rods (210), in addition, a linkage rod (240) and a movable rod (241) are rotationally connected between the right sliding sleeve (220) and the linkage sliding sleeve (280) and between two adjacent linkage sliding sleeves (280), the linkage rod (240) is hinged with the end parts of the movable rods (241), and pedals (260) are arranged at the tops of the lifting rods (210) which are positioned right above;

the lifting rod is characterized in that a rhombic avoiding opening (211) is formed in the middle of one side of the lifting rod (210), openings are formed in one side of the right sliding sleeve (220), one side of the left sliding sleeve (230) and one side of the linkage sliding sleeve (280), sleeve rods (221) sleeved with the end parts of the sliding rods (212) are arranged in the tangential direction of the other side of the right sliding sleeve, the right sliding sleeve (220), the left sliding sleeve (230) and the other side of the linkage sliding sleeve (280), pin columns (223) are arranged on the outer side faces of the right sliding sleeve, the left sliding sleeve and the linkage sliding sleeve (280) in the same direction and on the same plane as the sleeve rods (221), arc grooves (222) are formed in the top of the front ends of the sleeve rods (221), and clamping pins (270) clamped with the arc grooves (222) are sleeved on the pin columns (223), and the number of the sleeve rods (221) and the pin columns (223) on the linkage sliding sleeve (280) is two;

an inner cavity (242) penetrating one end of the movable rod (241) is formed in the side central line of the movable rod, the linkage rod (240) is in clamping fit with the inner cavity (242), and the outer ends of the linkage rod (240) and the movable rod (241) are respectively connected with corresponding pin posts (223) in a rotating mode;

an auxiliary stay bar (250) is connected between the two mutually hinged lifting rods (210), a convex column (213) which is rotationally connected with the top end of the auxiliary stay bar (250) is arranged between the side surfaces of the upper half parts of the two mutually hinged lifting rods (210), a clamping sleeve (252) is rotationally connected with the bottom end of the auxiliary stay bar (250), and the clamping sleeve (252) is sleeved with the lower half parts of the two mutually hinged lifting rods (210) and can slide;

the outer side of cutting ferrule (252) is equipped with communication ring (253) that are linked together rather than inside, the bottom of auxiliary stay (250) is equipped with pole cover (251) that cup joints with communication ring (253), footboard (260) are by square pipe welding into square frame construction and all weld ring cover (261) in its four corners, equidistant welding of top surface of footboard (260) has a plurality of steel wire nets (262).

2. The lifting folding foot stool system applied to a foundation according to claim 1, wherein: the utility model discloses a motor drive device, including driving lead screw (320) and transmission lead screw (330), driving lead screw (320) and transmission lead screw (330) top center all are equipped with reducing section (321), top one side of extension pipe (340) is equipped with stop collar (342) that cup joints with reducing section (321), wherein be located the inboard of right sliding sleeve (220) of top be equipped with screw thread and with driving lead screw (320) and transmission lead screw (330) threaded connection, the height of right sliding sleeve (220) is greater than the height of stop collar (342), coaxial coupling has worm (311) on the output shaft of servo motor (310), the bottom coaxial coupling of driving lead screw (320) has worm wheel (312) with worm (311) meshing, a plurality of welding has square board between pipe sleeve (110), wherein the welding has positioning ring (160) on the square board that is located driving lead screw (320) under, and the inside of positioning ring (160) is inlayed and is equipped with the bearing rather than the positioning sleeve (170) of grafting output shaft on the square board that is located servo motor (310) output shaft in addition, internally mounted has battery (140).

3. A lifting folding foot stool system for a foundation according to claim 2, wherein: square hole (322) have been seted up at top surface center of reducing section (321), the bottom center of transmission lead screw (330) is equipped with square post (331) of pegging graft with square hole (322), the vertical welding in bottom of extension pipe (340) has draw (341) of pipe box (110) grafting, the top inboard of extension pipe (340) and be 90 degrees contained angle department welding with spacing ring (342) have square (343), two relatively be provided with stiffening rod (350) between square (343), the both ends of stiffening rod (350) are equipped with connecting block (351) with square (343) joint, and both are through being trapezoidal pin through connection of falling.

4. The lifting folding foot stool system applied to a foundation according to claim 1, wherein: a plurality of support groups (400) which are vertically overlapped and arranged are arranged right above the stabilizing zone (130), each support group (400) comprises a support tube (410) and a stabilizing tube (420) which are connected with the tube sleeve (110), each stabilizing tube (420) is located at the corner of the outermost end of the stabilizing zone (130), a triangular reinforcing frame (430) is connected between the support tube (410) and the top of each stabilizing tube (420), and each left sliding sleeve (230) and each left linkage sliding sleeve (280) are sleeved with the support tube (410) and can slide.

5. The lifting folding foot stool system for a foundation of claim 4, wherein: the vertical welding in bottom of stay tube (410) has spliced pole (411) with pipe box (110), top one side of stay tube (410) is equipped with lug (412), top one side of stability tube (420) is equipped with the piece (421) of taking of vertical cross-section L, the one end and the piece (421) joint cooperation of reinforcing frame (430), the other both ends of reinforcing frame (430) are equipped with branching piece (431) with lug (412) joint, lug (412) with branching piece (431) are through being trapezoidal pin through connection.

6. The lifting folding foot stool system applied to a foundation according to claim 1, wherein: the square plate between the front pipe sleeves (110) is provided with a through hole, a protective door (111) is hinged in the through hole, the bottom ends of the two pipe sleeves (110) in the middle are connected with a threaded stay bar (150) in a threaded manner, and the corners of the two ends of the bottom surface of the foot rest seat plate (100) are provided with universal wheels (180).