CN115949220A - Convenient scaffold device capable of lifting and overhanging without power supply - Google Patents

Abstract

The invention relates to the technical field of scaffolds, and particularly discloses a convenient scaffold device capable of being lifted and cantilevered without a power supply, which comprises a support frame body, a lifting mechanism positioned in the middle and an operation platform positioned on the upper part; the support frame body comprises four support rods, sleeve rods are sleeved on the tops of the outer walls of the support rods, and the operating platform is arranged on the tops of the outer walls of the four sleeve rods; the lifting mechanism comprises fixed rods arranged on two sides of a support frame body, the inner threads of the fixed rods are connected with screw rods, the tops of the fixed rods are rotatably connected with first bevel gears through bearings, and the screw rods are in threaded connection with the first bevel gears.

Description

Convenient scaffold device capable of lifting and overhanging without power supply

Technical Field

The invention relates to the technical field of scaffolds, in particular to a convenient scaffold device which can be lifted and suspended without a power supply.

Background

Along with the modern construction development trend of our country, a large amount of residences and office buildings beyond the traditional floor height appear, and the traditional fastener type steel pipe scaffold cannot meet the characteristics of high construction speed, short construction period and low cost of the current building industry on the premise of meeting the requirements of safety and quality due to the fact that the traditional fastener type steel pipe scaffold is heavy, low in mounting and dismounting efficiency, multiple in required construction workers, easy to be affected by factors such as rain, snow, weather and corrosion and the like.

Although ordinary aluminum alloy scaffold puts up the ann and tears portably open, because of its standard festival height is comparatively fixed, is 2m usually, rises to appear too high problem in different positions easily when adding the festival, causes the construction degree of difficulty not to fall the increase of reversal, is difficult to satisfy the site operation demand when adjusting the handling frame height, and the flexibility is relatively poor, seriously influences the efficiency of construction. The traditional movable type scissor aerial work operating vehicle has large dead weight and size, cannot meet the requirement of freely performing transfer construction between an upper floor and a lower floor, has high manufacturing cost, needs to rely on a power supply to maintain mechanical operation in daily work, increases the cost, is complex to operate, is difficult to operate during power failure, seriously influences the construction efficiency, increases the hidden danger of maintenance and power utilization, increases the safety control risk and consumes energy; and the material loading is generally through pulling the feed cylinder and shifting up, then hold the feed cylinder and take out, and it is great to eat heavily, comparatively hard.

Therefore, the portable scaffold which can be lifted and suspended without a power supply is provided, so that the portable construction device which has no power supply, has different heights, can be used for construction inside and outside buildings and is convenient for loading is met.

Disclosure of Invention

Aiming at the problems in the prior art, the technical problems to be solved by the invention are as follows: it is difficult to effectively lock when adjusting the handling frame height to satisfy the site operation demand, the flexibility is relatively poor.

In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a convenient scaffold device capable of lifting and overhanging without a power supply, which comprises a support frame body, a lifting mechanism positioned in the middle and an operation platform positioned on the upper part;

the supporting frame body comprises four supporting rods, sleeve rods are sleeved at the tops of the outer walls of the supporting rods, the operating platform is arranged at the tops of the outer walls of the four sleeve rods, universal wheels are fixedly mounted at the bottoms of the four supporting rods, and the outer walls of the four sleeve rods are fixed in pairs through reinforcing rods, so that the whole scaffold can move conveniently;

the lifting mechanism comprises fixed rods arranged on two sides of the support frame body, screw rods are connected with the inner threads of the fixed rods in a threaded manner, the tops of the fixed rods are rotatably connected with first bevel gears through bearings, the tops of the screw rods penetrate through the first bevel gears and are in threaded connection with the first bevel gears, the first bevel gears are meshed with second bevel gears, the two second bevel gears are fixed through connecting shafts, and one of the second bevel gears is fixedly connected with a rotating handle through a shaft; two that lie in same one side be provided with the locking mechanism who is used for controlling operation platform and removes between the loop bar, the last pulling subassembly that still is provided with of elevating system, locking mechanism is by the drive of pulling subassembly.

The invention is further configured to: be located and be fixed with same bearing plate between two bracing pieces of homonymy, the top at the bearing plate is fixed to the dead lever bottom, two the outer wall of dead lever is fixed with same supporting seat, the both ends of connecting axle all rotate the both sides of passing the supporting seat, and the both ends of connecting axle and the second helical gear fixed connection who corresponds, four the loop bar is all fixed through the reinforcing plate between two liang.

The invention is further configured to: spacing holes have been seted up to the equal equidistance of the outer wall of loop bar and the outer wall of bracing piece, locking mechanism includes the mounting box fixed with the loop bar outer wall, the equal activity in inside both sides of mounting box is provided with the gag lever post, be provided with the pressing mechanism who controls the gag lever post removal on the mounting box, gag lever post and spacing hole looks adaptation.

The invention is further configured to: pressing means includes two triangle stoppers, first spring, U-shaped extrusion work piece and pressure head, two the outer wall position that two gag lever posts are close to each other is fixed respectively to the triangle stopper, U-shaped extrusion work piece and two triangle stopper looks adaptations, two fixed first spring between the triangle stopper, the outer wall at U-shaped extrusion work piece is fixed to the pressure head, and the partial cover that the pressure head passed the mounting box is equipped with the second spring.

The invention is further configured to: the pulling assembly comprises two extrusion blocks which are arranged on the outer walls of the two ends of the supporting seat in a sliding mode, a T-shaped block matched with the extrusion blocks is fixed on the end face of the pressure head, a pulling frame is fixed on the outer wall of each extrusion block, a holding rod is fixed at one end, far away from the extrusion blocks, of each pulling frame, and the holding rod is located on one side of the rotating handle.

The invention is further configured to: two be fixed with two connecting rods between the pulling frame, two the top outer wall and the bottom outer wall setting of supporting seat are hugged closely respectively to the connecting rod, the one end that the extrusion piece is close to the supporting seat is seted up the gomphosis at the supporting seat marginal breach, the installing port has been seted up at the top of supporting seat, two it is fixed through the mounting panel between the connecting rod, be equipped with the third spring that one end and the interior lateral wall of installing port are connected in the installing port, the other end of third spring is fixed at the mounting panel outer wall.

Before the hand is changeed and is made the connecting axle drive second helical gear rotate, need stimulate the holding rod, make two extrusion blocks of two pulling frame stimulations remove at the supporting seat edge, when the extrusion block removes, can contact the T-shaped piece, and extrude the T-shaped piece gradually, make the second spring shrink, and cause U-shaped extrusion work piece to remove, make the gag lever post of connecting on two triangle stoppers break away from spacing hole, four gag lever posts all break away from corresponding spacing hole simultaneously, under this condition, can realize the altitude mixture control of above-mentioned operation panel, altitude mixture control finishes, loosen the holding rod, at this moment, because be provided with the third spring in the installing port, and the other end of third spring is fixed on the mounting panel, the third spring does not receive the force and resets, order to extrude the piece and resume the normal position, thereby make the release of second spring, the T-shaped piece resumes the normal position, two gag lever posts that are located same mounting box keep away from each other under the effect of first spring, form the fixing to spacing hole, can carry out fast and stable lock to the loop bar after adjusting height.

The invention is further configured to: the outer wall of connecting axle is fixed with the fixed disk, the jack has been seted up to the fixed disk outer wall equidistance, and one of them the outer wall of extrusion piece is fixed with the inserted plate, the outer wall of inserted plate is fixed with the inserted bar with the jack adaptation. When not adjusting the height, carrying out the safe lock and die, strengthening the stable effect after the altitude mixture control, when pulling two and pulling the frame and remove, the extrusion piece removes and can make the inserted plate of fixing on the extrusion piece keep away from the fixed disk and remove, and the inserted bar breaks away from the jack, breaks away from spacingly, when loosening the holding rod, under the extrusion of third spring and T-shaped piece to the extrusion piece for the extrusion piece resets, and the fixed inserted bar of inserted plate outer wall inserts the jack of fixed disk outer wall.

The invention is further configured to: the operating platform comprises connecting discs fixed on the outer walls of the loop bars, mounting rods are fixed between every two connecting discs, and first cantilever plates are fixed between the four mounting rods.

The invention is further configured to: the cantilever mechanism is further installed on one side of the operating platform and comprises two round rods and four barrel rods for fixing, and a second cantilever plate is fixed between the barrel rods.

The invention is further configured to: two loop bars and two round bars close to the overhanging mechanism are fixed through a stay bar. The overhanging mechanism can be automatically added on the premise of ensuring safety, and can be detachably withdrawn when not needed, so that the construction requirement of the outer vertical surface of the building is met.

The invention is further configured to: keep away from the top of two loop bars of the mechanism one side of encorbelmenting installs same material loading subassembly, material loading subassembly is including fixing the installation piece at two loop bar tops, two installation piece side in opposite directions all rotates and is connected with the axis of rotation, two be fixed with same wind-up roll, two between the axis of rotation the equal fixed cover of axis of rotation outer wall is equipped with the rolling dish.

The invention is further configured to: two the installation piece side in opposite directions all rotates and is connected with the spliced pole, two be fixed with same L shape loading board between the spliced pole, the notch that corresponds two rolling dishes is all seted up to the both sides of L shape loading board.

The invention is further configured to: the outer walls of the rotating shaft and the connecting column which are positioned on the same side are fixedly sleeved with driving wheels, the two driving wheels positioned on the same side are connected through a driving belt, and the outer wall of one of the mounting blocks is fixedly provided with a stop lever close to the outer wall of the L-shaped bearing plate.

Compared with the prior art, the invention has at least the following advantages:

1. the invention can freely go up and down, and effectively lock and fix, thereby avoiding the problem of inconvenient lifting of the traditional scaffold, the hand-operated rotating handle enables the connecting shaft to drive the second bevel gears to rotate, the two second bevel gears rotate on the supporting seat under the action of the connecting shaft, the screw threads are arranged in the fixed rod, when the first bevel gear is driven by driving force, the screw tends to move up and down, so that the height of the operating platform can be conveniently adjusted by workers, before adjustment, the holding rod needs to be pulled, so that the two extrusion blocks are pulled by the two pulling frames to move at the edge of the supporting seat, when the extrusion blocks move, the screw threads can contact with the T-shaped block and gradually extrude the T-shaped block, so that the second spring contracts and the U-shaped extrusion workpiece moves, the limiting rods of the two triangular limiting blocks are separated from the limiting holes, the four limiting rods are simultaneously separated from the corresponding limiting holes, then the hand-operated rotating handle enables the connecting shaft to drive the second bevel gears to rotate, the first bevel gear is driven by the driving force from the second bevel gear, so that the screw tends to move up and down and move, so that the height adjustment is finished, the holding rod is loosened, the third spring is reset, the extrusion blocks are driven by the extrusion blocks, the T-spring, the locking block is positioned in the original position of the two limiting rods can be quickly adjusted in the fixed box, and the locking block can be stably positioned in the same limiting rod, and the fixing box, and the locking block can be positioned in the same limiting rod.

2. The invention can avoid using power supply and save energy through a hand-operated adjusting mode, and in addition, the invention realizes the height adjustment of the scaffold through ingenious mechanical transmission, and compared with the problems caused by the power supply, the invention has simple and convenient maintenance and achieves the effects of energy saving and environmental protection.

3. The portable scaffold device provided by the invention can be detachably withdrawn when not needed, so that the construction requirement of the building facade can be met, the construction quality of the facade is improved, the operation platform comprises a connecting disc fixed on the outer wall of the loop bars, mounting bars are fixed between every two connecting discs, a first cantilever plate is fixed between the four mounting bars, one side of the operation platform is also provided with an overhanging mechanism, the overhanging mechanism comprises two loop bars and four mounting bars for fixing, a second cantilever plate is fixed between the four mounting bars, the two loop bars close to the overhanging mechanism and the two loop bars are fixed through support bars, and the overhanging mechanism can be automatically arranged on the premise of ensuring safety.

4. According to the invention, when the winding roller and the winding disc rotate, the connecting column and the L-shaped bearing plate rotate under the action of the driving wheel and the driving belt, when the coating cylinder is hoisted to move upwards, the L-shaped bearing plate is far away from the winding roller under the action of the driving wheel and the driving belt, so that the coating cylinder can conveniently move upwards, the stop lever can block the L-shaped bearing plate, the driving belt slips on the driving wheel to prevent the L-shaped bearing plate from excessively rotating, when the coating cylinder is hoisted to a scaffold, the winding roller is rotated to reversely rotate the L-shaped bearing plate, so that the bottom of the L-shaped bearing plate can be positioned on the outer wall of the coating cylinder to support, and the coating cylinder is convenient to take.

Drawings

Fig. 1 is a schematic perspective view of a portable scaffold device that can be lifted and suspended without a power supply according to the present invention;

fig. 2 is a schematic view of a first partial three-dimensional structure of a portable scaffold device that can be lifted and suspended without a power supply according to the present invention;

fig. 3 is a schematic view of a second partial three-dimensional structure of the portable scaffold device that can be lifted and suspended without a power supply according to the present invention;

fig. 4 is an enlarged schematic structural diagram of a position a in fig. 3 of the portable scaffold device capable of being lifted and suspended without a power supply according to the present invention;

fig. 5 is a schematic view of a partial top view of a portable scaffold device that can be lifted and suspended without a power supply according to the present invention;

FIG. 6 is a schematic perspective view of a pulling assembly of the portable scaffold device that can be lifted and suspended without a power supply according to the present invention;

fig. 7 is a schematic view of a partial three-dimensional structure of a locking mechanism of a portable scaffold device that does not need a power supply for lifting and overhanging;

fig. 8 is a schematic side view of the portable scaffold device that can be lifted and suspended without a power supply according to the present invention;

fig. 9 is a schematic structural view of a feeding assembly of the portable scaffold device which can be lifted and suspended without a power supply.

In the figure: 1. a support bar; 2. a loop bar; 3. a bearing plate; 4. a lifting mechanism; 401. fixing the rod; 402. a screw; 403. a first helical gear; 404. a second helical gear; 405. a connecting shaft; 406. a supporting base; 5. a locking mechanism; 501. mounting a box; 502. a pressure head; 503. u-shaped extrusion work piece; 504. a limiting rod; 505. a triangular limiting block; 506. a first spring; 6. a pulling assembly; 601. pulling the frame; 602. extruding the block; 603. a holding rod; 604. a connecting rod; 605. mounting a plate; 606. a T-shaped block; 7. fixing the disc; 8. a jack; 9. inserting a disc; 10. a second spring; 11. a connecting disc; 12. mounting a rod; 13. a first cantilever plate; 14. a cantilever mechanism; 15. a limiting hole; 16. an installation port; 17. a third spring; 18. a stay bar; 19. a feeding assembly; 20. mounting blocks; 21. a rotating shaft; 22. a wind-up roll; 23. a winding disc; 24. connecting columns; 25. an L-shaped bearing plate; 26. a notch; 27. a driving wheel; 28. a transmission belt; 29. a gear lever; 30. a round bar; 31. a cylinder rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-8, a portable scaffold device that does not need power supply lifting and overhanging includes a support frame, a lifting mechanism 4 located in the middle and an operating platform located on the upper portion.

The support body includes four bracing pieces 1, and the outer wall top cover of bracing piece 1 is equipped with loop bar 2, and operation platform sets up at the top of four loop bars 2, and the equal fixed mounting in bottom of four bracing pieces 1 has the universal wheel, and the outer wall of four loop bars 2 is fixed through the stiffener between two liang, the removal of the whole scaffold frame of being convenient for.

The lifting mechanism 4 comprises fixed rods 401 arranged at two sides of the support frame body, a screw 402 is connected with the inner threads of the fixed rods 401, the top of each fixed rod 401 is rotatably connected with a first bevel gear 403 through a bearing, the top of each screw 402 passes through the corresponding first bevel gear 403, the screws 402 are in threaded connection with the corresponding first bevel gears 403, the first bevel gears 403 are meshed with second bevel gears 404, the two second bevel gears 404 are fixed through connecting shafts 405, and a rotating handle is fixed on one of the second bevel gears 404 through a shaft; all be provided with the locking mechanism 5 that is used for controlling operation platform to remove between two loop bars 2 that are located same end, still be provided with pulling assembly 6 on elevating system 4, locking mechanism 5 is driven by pulling assembly 6.

When adjusting the height, the staff manually rotates the handle and makes connecting axle 405 drive second helical gear 404 to rotate, under the effect of connecting axle 405, two second helical gears 404 rotate on supporting seat 406, second helical gear 404 drives the first helical gear 403 rotation rather than the meshing, because screw rod 402 and first helical gear 403 threaded connection, and the screw rod 402 screw thread sets up the inside at dead lever 401, when first helical gear 403 receives drive power, can make screw rod 402 produce the trend of reciprocating, it moves and moves down the difference that lies in the pivoted direction, be convenient for the staff to adjust the height of operation panel.

Specifically, be fixed with same bearing plate between two bracing pieces that are located the homonymy, the dead lever bottom is fixed at the top of bearing plate, two the outer wall of dead lever is fixed with same supporting seat, the both ends of connecting axle are all rotated and are passed the both sides of supporting seat, and the both ends of connecting axle and the second helical gear fixed connection that corresponds.

The four loop bars 2 are fixed by the reinforcing plate. The support of the fixing rod 401 is strengthened by the bearing plate 3, and the stability between the loop bars 2 is improved by the four strengthening plates.

The locking mechanism comprises a mounting box fixed with the outer wall of the sleeve rod, limiting rods are movably arranged on two sides of the mounting box, a pressing mechanism for controlling the limiting rods to move is arranged on the mounting box, and the limiting rods are matched with the limiting holes. Pressing means includes two triangle stoppers, first spring, U-shaped extrusion work piece and pressure head, two the outer wall position that two gag lever posts are close to each other is fixed respectively to the triangle stopper, U-shaped extrusion work piece and two triangle stopper looks adaptations, two fixed first spring between the triangle stopper, the outer wall at U-shaped extrusion work piece is fixed to the pressure head, and the partial cover that the pressure head passed the mounting box is equipped with the second spring.

Under the action of the pulling assembly 6, the U-shaped extrusion workpiece 503 moves to separate the limiting rods 504 connected to the two triangular limiting blocks 505 from the corresponding limiting holes 15, and the four limiting rods 504 are separated from the corresponding limiting holes 15 at the same time, so that the height adjustment of the operating table can be realized, and then the mounting plate 605 is fixed by the third spring 17, the third spring 17 is not reset by force, the extrusion block 602 is driven to return to the original position, so that the second spring 10 is released, and the T-shaped block 606 returns to the original position.

Specifically, pulling subassembly 6 includes two extrusion pieces that slide and set up at supporting seat both ends outer wall, the terminal surface of pressure head 502 is fixed with the T-shaped piece 606 with extrusion piece 602 looks adaptation, the part cover that pressure head 502 is located outside mounting box 501 is equipped with second spring 10, extrusion piece 602's outer wall is fixed with pulling frame 601, the one end that extrusion piece 602 was kept away from to two pulling frames 601 is fixed with holding rod 603, and holding rod 603 is located one side of changeing the handle, be fixed with two connecting rods 604 between two pulling frames 601, the top outer wall and the bottom outer wall setting of supporting seat 406 are hugged closely respectively to two connecting rods 604, the breach at the supporting seat 406 edge is seted up to the one end that extrusion piece 602 is close to supporting seat 406, installing port 16 has been seted up at the top of supporting seat 406, it is fixed through mounting panel 605 between two connecting rods 604, the inner wall both ends of installing port 16 all are fixed with third spring 17, the other end of third spring 17 is fixed at mounting panel 605 outer wall.

Before the hand-cranking rotating handle enables the connecting shaft to drive the second bevel gear 404 to rotate, the holding rod 603 needs to be pulled, the two pulling frames 601 pull the two extrusion blocks 602 to move at the edge of the supporting seat 406, when the extrusion blocks 602 move, the two extrusion blocks 602 can contact the T-shaped block 606 and gradually extrude the T-shaped block 606, the second spring 10 contracts and enables the U-shaped extrusion workpiece 503 to move, the limiting rods 504 connected to the two triangular limiting blocks 505 are separated from the limiting holes 15, and the four limiting rods 504 are simultaneously separated from the corresponding limiting holes 15.

Specifically, a fixed disk 7 is fixed on the outer wall of the connecting shaft 405, jacks 8 are equidistantly formed in the outer wall of the fixed disk 7, an inserting disk 9 is fixed on the outer wall of one of the squeezing blocks 602, and an inserting rod matched with the jack 8 is fixed on the outer wall of the inserting disk 9.

When two pulling frame 601 of pulling remove, extrusion piece 602 removes can make the inserted bar 9 of fixing on extrusion piece 602 keep away from fixed disk 7 and remove, the inserted bar breaks away from jack 8, it is spacing to break away from, when loosening holding rod 603, under the extrusion of third spring 17 and T-shaped piece 606 to extrusion piece 602, make extrusion piece 602 reset, the fixed inserted bar of inserted bar 9 outer wall inserts the jack 8 of fixed disk 7 outer wall, realize further locking fixed, when not adjusting the height, it is dead to carry out the safety lock, strengthen the stable effect after the altitude mixture control.

Specifically, the operation platform comprises a connecting disc 11 fixed on the outer wall of the loop bar 2, mounting rods 12 are fixed between every two connecting discs 11, and a first cantilever plate 13 is fixed between four mounting rods 12. The cantilever mechanism 14 is further installed on one side of the operating platform, the cantilever mechanism 14 comprises two round rods 30 and four cylinder rods 31 for fixing, and a second cantilever plate is fixed between the four cylinder rods 31. The two loop bars 2 and the two round bars 30 close to the cantilever mechanism 14 are fixed by the stay bars 18.

The overhanging mechanism 14 can be automatically added on the premise of ensuring safety, and can be detachably withdrawn when not needed, so that the construction requirement of the outer vertical surface of the building is met, and the construction quality of the outer vertical surface is improved.

Example two:

referring to fig. 1 and 9, keep away from the top of two loop bars 2 of the mechanism 14 one side of encorbelmenting and install same material loading subassembly 19, material loading subassembly 19 is including the installation piece 20 at two fixed loop bars 2 tops, and the one side that two installation pieces 20 are close to each other all rotates and is connected with axis of rotation 21, is fixed with same wind-up roll 22 between two axis of rotation 21, and two equal fixed cover of axis of rotation 21 outer wall are equipped with wind-up reel 23. The construction coating cylinder is scraped on a hook of a rope, and the winding disc 23 is manually rotated by a worker. The winding disc 23 can enable the rotating shaft 21 and the winding roller 22 to rotate, and the coating drum is conveniently hung and taken to a scaffold.

The rolling device comprises a mounting block, a connecting column, a L-shaped bearing plate and two rolling plates, wherein the two opposite side faces of the mounting block are rotatably connected with the connecting column, the same L-shaped bearing plate is fixed between the connecting columns, and notches corresponding to the two rolling plates are formed in two sides of the L-shaped bearing plate. The outer walls of the rotating shaft and the connecting column which are positioned on the same side are fixedly sleeved with driving wheels, the two driving wheels which are positioned on the same side are connected through a driving belt, and the outer wall of one of the mounting blocks is fixed with a blocking rod close to the outer wall of the L-shaped bearing plate.

By utilizing the added L-shaped bearing plate 25, when the winding roller 22 and the winding disc 23 rotate, the connecting column 24 and the L-shaped bearing plate 25 can rotate under the action of the driving wheel 27 and the driving belt 28, when the coating cylinder is hung and taken to move upwards, the L-shaped bearing plate 25 is far away from the winding roller 22 under the action of the driving wheel 27 and the driving belt 28, so that the coating cylinder is convenient to move upwards, the baffle rod 29 can block the L-shaped bearing plate 25, the driving belt 28 slips on the driving wheel 27, the L-shaped bearing plate 25 is prevented from excessively rotating, when the coating cylinder is hung and taken to a scaffold, the winding roller 22 is rotated, so that the L-shaped bearing plate 25 reversely rotates, the bottom of the L-shaped bearing plate 25 can be positioned on the outer wall of the coating cylinder to support, the L-shaped bearing plate 25 is controlled not to deflect, and the coating cylinder is convenient to take.

The working principle is as follows: when the scaffold is used, the whole scaffold is moved to a position needing to work, the universal wheels are locked to fix, firstly, the height is adjusted according to the work requirement, when the height is adjusted, an operator manually rotates the handle to enable the connecting shaft to drive the second bevel gears 404 to rotate, under the action of the connecting shaft 405, the two second bevel gears 404 rotate on the supporting seat 406, the second bevel gears 404 drive the first bevel gears 403 meshed with the second bevel gears to rotate, as the screw 402 is in threaded connection with the first bevel gears 403, and the screw 402 is arranged in the fixed rod 401 in a threaded manner, when the first bevel gears 403 are driven by a driving force, the screw 402 tends to move up and down, the upward movement and the downward movement are different in the rotating direction, the height of the operation platform is convenient to adjust by the operator, namely before the hand rotates the connecting shaft to drive the second bevel gears 404 to rotate, the holding rod 603 needs to be pulled, so that the two pulling frames 601 pull the two squeezing blocks 602 to move at the edge of the supporting seat 406, when the squeezing blocks 602 move, the squeezing blocks can contact the T-shaped block 606 and gradually squeeze the T-shaped block 606, so that the second spring 10 contracts and the U-shaped squeezing workpiece 503 moves, so that the limiting rods 504 connected to the two triangular limiting blocks 505 are separated from the limiting holes 15, and all four limiting rods 504 are separated from the corresponding limiting holes 15 at the same time, in this case, the hand-operated rotating handle enables the connecting shaft 405 to drive the second bevel gear 404 to rotate, the first bevel gear 403 receives the driving force from the second bevel gear 404, so that the screw 402 tends to move up and down, the height adjustment of the operating platform can be realized, and after the height adjustment is completed, the holding rod 603 is loosened, at this time, because the third spring 17 is arranged in the mounting opening 16 and the mounting plate is fixed by the third spring 17, the third spring 17 is not forced to reset, the pressing block 602 is driven to return to the original position, so that the second spring 10 is released, the T-shaped block 606 returns to the original position, the two limiting rods 504 in the same mounting box 501 are far away from each other under the action of the first spring 506, the limiting hole 15 is fixed, and the loop bar 2 with the height adjusted can be locked quickly and stably.

Further, the outer wall of connecting axle 405 is fixed with fixed disk 7, jack 8 has been seted up to fixed disk 7 outer wall equidistance, the outer wall of one of them extrusion piece 602 is fixed with inserting plate 9, inserting plate 9's outer wall is fixed with the inserted bar with jack 8 adaptation, when pulling two pull frame 601 and removing, extrusion piece 602 removes and to make the inserting plate 9 of fixing on extrusion piece 602 keep away from fixed disk 7 and remove, the inserted bar breaks away from jack 8, it is spacing to break away from, when loosening holding rod 603, under the squeezing action of third spring 17 and T-shaped piece 606 to extrusion piece 602, make extrusion piece 602 reset, the fixed inserted bar of inserting plate 9 outer wall inserts jack 8 of fixed disk 7 outer wall, realize further locking fixedly, when the festival height, carry out safe locking, strengthen the stable effect after the altitude mixture control.

Furthermore, the overhanging mechanism 14 can be additionally arranged on the premise of ensuring safety, and can be disassembled and retracted when not needed, so that the construction requirement of the outer vertical surface of the building is met, and the construction quality of the outer vertical surface is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. A convenient scaffold device which does not need to be lifted and cantilevered by a power supply comprises a support frame body, a lifting mechanism (4) positioned in the middle and an operation platform positioned on the upper part, and is characterized in that the support frame body is provided with a lifting mechanism and a lifting mechanism;

the supporting frame body comprises four supporting rods (1), sleeve rods (2) are sleeved at the tops of the outer walls of the supporting rods (1), the operating platform is arranged at the tops of the four sleeve rods (2), universal wheels are fixedly mounted at the bottoms of the four supporting rods (1), and every two four sleeve rods (2) are fixed through reinforcing rods;

the lifting mechanism (4) comprises fixing rods (401) arranged on two sides of a support frame body, a screw rod (402) is connected to the inner threads of the fixing rods (401), a first helical gear (403) is rotatably connected to the top of each fixing rod (401) through a bearing, the top of each screw rod (402) penetrates through the corresponding first helical gear (403), the screw rods (402) are in threaded connection with the corresponding first helical gears (403), the first helical gears (403) are meshed with second helical gears (404), the two second helical gears (404) are fixed through connecting shafts (405), and one of the second helical gears (404) is fixedly connected with a rotating handle through a shaft;

two that lie in same one side be provided with between loop bar (2) and be used for controlling the locking mechanism (5) that operation platform removed, still be provided with pulling subassembly (6) on elevating system (4), locking mechanism (5) are driven by pulling subassembly (6).

2. The portable scaffold device capable of being suspended without power supply and capable of being lifted and suspended is characterized in that the same bearing plate (3) is fixed between two supporting rods (1) on the same side, the bottoms of the fixing rods (401) are fixed on the top of the bearing plate (3), the outer walls of the two fixing rods (401) are fixed with the same supporting seat (406), both ends of the connecting shaft (405) penetrate through both sides of the supporting seat (406) in a rotating manner, and both ends of the connecting shaft (405) are fixedly connected with the corresponding second bevel gears (404).

3. The convenient scaffold device capable of being suspended without a power supply in a lifting manner is characterized in that limiting holes (15) are formed in the outer wall of the loop bar (2) and the outer wall of the supporting bar (1) at equal intervals, the locking mechanism (5) comprises an installation box (501) fixed to the outer wall of the loop bar (2), limiting rods (504) are movably arranged on two sides of the inside of the installation box (501), a pressing mechanism for controlling the limiting rods (504) to move is arranged on the installation box (501), and the limiting rods (504) are matched with the limiting holes (15).

4. The convenient scaffold device that does not need liftable of power and encorbelments of claim 3, characterized in that, pressing means includes two triangle stopper (505), first spring (506), U-shaped extrusion work piece (503) and pressure head (502), two the outer wall position that two gag lever posts (504) are close to each other is fixed respectively to triangle stopper (505), U-shaped extrusion work piece (503) and two triangle stopper (505) looks adaptations, two fixed first spring (506) between triangle stopper (505), the outer wall at U-shaped extrusion work piece (503) is fixed to pressure head (502), and the partial cover that pressure head (502) passed mounting box (501) is equipped with second spring (10).

5. The convenient scaffold device capable of being hoisted and cantilevered without a power supply according to claim 4, wherein the pulling assembly (6) comprises two extrusion blocks (602) slidably arranged on the outer walls of two ends of the supporting base (406), a T-shaped block (606) matched with the extrusion blocks (602) is fixed on the end surface of the pressure head (502), a pulling frame (601) is fixed on the outer wall of the extrusion blocks (602), a holding rod (603) is fixed on one end of each of the two pulling frames (601) far away from the extrusion blocks (602), and the holding rod (603) is located on one side of the rotating handle.

6. The portable scaffold device capable of being lifted and cantilevered without a power supply according to claim 5, wherein two connecting rods (604) are fixed between the two pulling frames (601), the two connecting rods (604) are respectively tightly attached to the top outer wall and the bottom outer wall of the supporting seat (406), one end of the extrusion block (602) close to the supporting seat (406) is provided with a notch embedded at the edge of the supporting seat (406), the top of the supporting seat (406) is provided with a mounting port (16), the two connecting rods (604) are fixed through a mounting plate (605), a third spring (17) with one end connected with the inner side wall of the mounting port (16) is arranged in the mounting port (16), and the other end of the third spring (17) is fixed on the outer wall of the mounting plate (605).

7. The convenient scaffold device capable of being lifted and cantilevered without a power supply according to claim 6, wherein a fixed disc (7) is fixed on the outer wall of the connecting shaft (405), jacks (8) are formed in the outer wall of the fixed disc (7) at equal intervals, an inserting disc (9) is fixed on the outer wall of one of the extrusion blocks (602), and an inserting rod matched with the jack (8) is fixed on the outer wall of the inserting disc (9).

8. The portable scaffold device capable of being hoisted and cantilevered without power supply according to claim 7, wherein the operating platform comprises connecting discs (11) fixed on the outer wall of the loop bar (2), mounting bars (12) are fixed between every two connecting discs (11), and first cantilever plates (13) are fixed between four mounting bars (12).

9. The portable scaffold device capable of being lifted and cantilevered without a power supply according to claim 8, wherein a cantilever mechanism (14) is further installed on one side of the operating platform, the cantilever mechanism (14) comprises two round rods (30) and four barrel rods (31) for fixing, and a second cantilever plate is fixed between the four barrel rods (31).

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