CN114703763A - Scaffold for bridge construction with telescopic pillar - Google Patents
Scaffold for bridge construction with telescopic pillar Download PDFInfo
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- CN114703763A CN114703763A CN202210631271.1A CN202210631271A CN114703763A CN 114703763 A CN114703763 A CN 114703763A CN 202210631271 A CN202210631271 A CN 202210631271A CN 114703763 A CN114703763 A CN 114703763A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to the field of building construction auxiliary equipment, in particular to a scaffold with telescopic pillars for bridge buildings, which comprises a support, the telescopic pillars and an adjusting device, wherein the telescopic pillars are slidably inserted into supporting legs of the support, and the lower end of each telescopic pillar is hinged with an adjusting block; the adjusting device is at least provided with two adjusting blocks, the two adjusting blocks are respectively positioned on two telescopic pillars on different diagonal lines, and the adjusting block is in transmission connection with the adjusting blocks at the positions of the adjusting blocks and the telescopic pillars on two adjacent sides of the adjusting block. When the scaffold is used, when one telescopic support is sunk into the ground, the adjusting device drives the telescopic support at the sunken part to move downwards relative to the supporting leg, so that the regulating block at the sunken part can be attached to the bottom surface of the concave pit after the scaffold is inclined and reset, the scaffold is further supported by the four supporting points, the scaffold cannot shake, and the safety of construction workers is guaranteed.
Description
Technical Field
The invention relates to the field of auxiliary equipment for building construction, in particular to a scaffold with telescopic pillars for bridge construction.
Background
During bridge building construction, a scaffold is needed to assist constructors in construction operation. When the scaffold is built, the scaffold is hoisted to the designated position by utilizing the hoisting equipment, a plurality of scaffolds are fixedly connected into a whole through the connecting pieces, and as the operation foundation of constructors, the constructors can perform various operations on the scaffold, including some hoisting operations with smaller loads. The constructor often need make a round trip to move the change station in the in-process of being under construction on the scaffold frame, and the atress condition of operation point also is constantly changing when carrying out the operation, for example when carrying out the light load jack-up, the scaffold frame atress of the strong point department as the jack-up operation is obviously different from elsewhere. Because building site is mostly soil property, so when ground received the inhomogeneous pressure of scaffold, the ground of certain department's stabilizer blade position can produce sunkenly, and the workman walks about on the frame plate this moment and can make the scaffold frame produce and rock, influences workman's normal work and safety.
The prior scaffold can not adjust and support adaptively after the scaffold inclines, thereby increasing the potential safety hazard of the scaffold. For example, chinese patent application No. 202110248566.6 discloses a scaffold, in which a support column of the scaffold includes an upper column and a lower column, when the scaffold is installed, the support height of the support column is adjusted according to the degree of concavity of the ground, the lower column on the support column which is floating is pulled downward, a first slide bar on the lower column slides downward in the process of pulling the lower column, and a block in an auxiliary ring intermittently slides into a gap between the lower column and an upper column under the extrusion of a compression spring in the process of separating the lower column from the upper column until the moving lower column is inserted into the ground, thereby completing adjustment and support. Compared with a method for leveling a brick paving pad, the method has the advantages that the supporting effect and the operation convenience are improved, the scaffold is still leveled and supported according to the ground condition before use, and if the supporting legs sink into the ground during use, timely automatic adjustment cannot be achieved, so that the problem of shaking generated in the use process of the scaffold cannot be solved.
Disclosure of Invention
According to the defects of the prior art, the invention provides a scaffold with telescopic struts for bridge construction, which aims to solve the problem that the existing scaffold is inclined and shaken in the using process.
The invention discloses a scaffold with telescopic pillars for bridge construction, which adopts the following technical scheme: the method comprises the following steps:
the support is provided with a top plate and four support legs arranged at four corners of the top plate, a frame plate is fixedly arranged above the top plate, and the support legs are hollow;
the telescopic struts are slidably inserted into the supporting legs, and the lower end of each telescopic strut is hinged with an adjusting block through an articulated shaft extending inside and outside; the lower end surface of the telescopic strut is an arc surface, the axis of the arc surface is parallel to the hinge shaft, and the lower bottom surface of the adjusting block is tangent to the lower end surface of the telescopic strut;
and the adjusting devices are at least provided with two adjusting blocks and are respectively positioned on two telescopic struts on different diagonal lines, the adjusting blocks at the positions of the adjusting blocks and the telescopic struts on the two adjacent sides of the adjusting blocks are connected in a transmission manner by the adjusting devices, and the adjusting devices are used for driving the telescopic struts connected with the adjusting blocks to move downwards relative to the supporting legs, wherein the lower bottom surfaces of the telescopic struts sink into the ground, so that the telescopic struts continuously support the scaffold after the scaffold is inclined and reset.
Optionally, the top plate is provided with a plurality of rotatable and vertically extending spiral rods, and the lower ends of the spiral rods are positioned inside the corresponding support legs and are in threaded connection with the upper ends of the telescopic struts;
adjusting device sets up in the inside first regulation ratch and the second regulation ratch of telescopic support including can sliding from top to bottom, the lower extreme of first regulation ratch and second regulation ratch is through the transmission of first transmission portion connection corresponding regulating block, the upper end is connected rather than adjacent hob through the transmission of second transmission portion respectively, first transmission portion is used for turning into the relative deflection of telescopic support and regulating block the removal of first regulation ratch or second regulation ratch, second transmission portion is used for turning into the rotation of corresponding hob with the removal of first regulation ratch or second regulation ratch, and then drive telescopic support and rotate the removal.
Optionally, the first transmission part comprises a first adjusting rod and a second adjusting rod, the first adjusting rod and the second adjusting rod are respectively located at two sides of the hinge shaft, the lower ends of the first adjusting rod and the second adjusting rod are hinged with the adjusting block, the first adjusting rod and the second adjusting rod are respectively provided with a first sliding block and a second sliding block, the first sliding block and the second sliding block and the adjusting block can slide relatively along a first direction, the first direction is a horizontal direction perpendicular to the hinge shaft, a first push plate and a first adjusting toothed plate are slidably arranged above the first sliding block along the first direction, the first adjusting toothed plate can move up and down along the first sliding block, a second push plate and a second adjusting toothed plate are slidably arranged above the second sliding block along the first direction, the second adjusting toothed plate can move up and down along the first sliding block, the first push plate is fixedly connected with the first adjusting rod, the second push plate is fixedly connected with the second adjusting rod, the first adjusting toothed plate and the second adjusting toothed plate are located at the inner sides of the first push plate and the second push plate, the first adjusting toothed plate and the first push plate and the second adjusting toothed plate and the second push plate are connected through a plurality of elastic supporting pieces; the lower extreme of first regulation rack bar and second regulation rack bar all is provided with combination gear, and combination gear on the first regulation rack bar can be with first regulation pinion rack meshing, and combination gear on the second regulation rack bar can be with second regulation pinion rack meshing.
Optionally, the resilient support is a spring.
Optionally, the upper surface of the top plate is provided with a mounting groove, the second transmission part comprises a transmission gear rotatably arranged on the side wall of the mounting groove and a first rotating shaft and a second rotating shaft rotatably arranged on the bottom wall of the mounting groove, the transmission gear comprises a cylindrical tooth section and a conical tooth section which are connected, the cylindrical tooth section is meshed with a corresponding first adjusting tooth rod or a corresponding second adjusting tooth rod, the first rotating shaft and the second rotating shaft are respectively parallel to and adjacent to two diagonals of the support, and the top end of the spiral rod is provided with a main bevel gear; the inner ends of the first rotating shaft and the second rotating shaft are provided with inner bevel gears which are meshed with each other, the outer end of the first rotating shaft is provided with a first outer end bevel gear, the outer end of the second rotating shaft is provided with a second outer end bevel gear, the first outer end bevel gear is meshed with the conical tooth section of the corresponding transmission gear, and the second outer end bevel gear is meshed with the corresponding main bevel gear.
Optionally, the first outer end bevel gear and the first rotating shaft are connected in a unidirectional rotation manner through a unidirectional structure, and the unidirectional structure enables the first outer end bevel gear and the first rotating shaft to rotate relatively when the first adjusting rack bar or the second adjusting rack bar moves downwards to drive the transmission gear to rotate and further the first outer end bevel gear rotates; and when the first adjusting rack bar or the second adjusting rack bar moves upwards to drive the transmission gear to rotate so as to drive the first outer end bevel gear to rotate, the first outer end bevel gear drives the first rotating shaft to rotate.
Optionally, the unidirectional structure is a ratchet structure.
Optionally, the side walls of the shelf plate are provided with ladder stands.
Optionally, two pull rods are connected between two adjacent support legs, and the two pull rods are arranged in a crossed manner and fixedly connected at the crossed position.
The invention has the beneficial effects that: the scaffold for the bridge building with the telescopic support columns is provided with the telescopic support columns in a sliding mode inside the support legs, the lower ends of the telescopic support columns are hinged with the adjusting blocks, the two telescopic support columns on different diagonal lines are provided with the adjusting devices, and the adjusting blocks at the positions where the telescopic support columns are located and the telescopic support columns on the two adjacent sides of the telescopic support columns are connected in an adjusting transmission mode. The scaffold is in the use, and when one of them telescopic strut was sunk in the ground, corresponding adjusting device drive this sunken telescopic strut moved down for the landing leg, and its total length with the landing leg increases after this telescopic strut moved down to this after scaffold slope and reset, sunken department regulating block can laminate with the pit bottom surface, and then makes scaffold continue to be supported by four fulcrums, can not take place to rock again, has guaranteed construction worker's safety.
Drawings
In order to illustrate embodiments of the invention or prior art solutions more clearly, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention and that other drawings may be derived from those without inventive effort by a person skilled in the art, it being understood that the drawings are not necessarily drawn to scale.
Fig. 1 is a schematic view showing the overall structure of a scaffold for bridge construction having telescopic struts according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the connection between the telescopic prop and the first transmission part of the adjusting device according to the present invention;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a view showing a state of a structure of a part of the adjusting device after the adjusting block deflects;
FIG. 7 is an overall view of the structure of the adjusting device and the telescopic prop according to the present invention;
FIG. 8 is a front view of FIG. 7 (with the telescoping strut shown recessed at a);
fig. 9 is a front view (scaffold reset state) of fig. 7.
In the figure: 100. a frame plate; 110. a support; 111. a top plate; 112. a support leg; 120. a telescopic strut; 130. climbing a ladder; 140. a pull rod; 200. an adjusting block; 210. a first adjusting lever; 2101. a first push plate; 211. a second adjusting lever; 2111. a second push plate; 220. a first slider; 221. a second slider; 230. a first adjusting toothed plate; 231. a second adjusting toothed plate; 240. a first adjusting toothed bar; 241. a second adjusting toothed bar; 250. a screw rod; 251. a main bevel gear; 260. a transmission gear; 270. a first outer end bevel gear; 271. a second outer end bevel gear; 272. an inner end bevel gear; 280. a first rotating shaft; 281. a second rotating shaft.
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. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 to 9, a scaffold for bridge construction having a telescopic strut according to the present invention includes a support 110, a telescopic strut 120, and an adjusting means; the bracket 110 has a top plate 111 and four legs 112 disposed at four corners of the top plate 111, a shelf board 100 is fixedly disposed above the top plate 111, and a constructor can perform construction operations on the shelf board 100.
The inside cavity of landing leg 112, telescopic strut 120 slidable cartridge is inside landing leg 112, the articulated shaft that the lower extreme of every telescopic strut 120 extends through inside and outside (the center of roof 111 is interior, the center of keeping away from roof 111 is outer, the same below) articulates there is regulating block 200, telescopic strut 120's lower terminal surface is arc surface and arc surface's axis parallel with the articulated shaft, regulating block 200's lower bottom surface is tangent with telescopic strut 120's lower terminal surface, regulating block 200 contacts with ground during the use.
The adjusting devices are at least two and are respectively positioned on two telescopic struts 120 on different diagonal lines, and the adjusting devices are in transmission connection with the adjusting blocks 200 at the positions where the adjusting blocks are located and the telescopic struts 120 on two adjacent sides of the adjusting blocks and are used for driving the telescopic struts 120, connected with the adjusting blocks, with the lower bottom surfaces sunk into the ground to move downwards, so that the telescopic struts 120 at the sunken positions continuously support the scaffold after the scaffold is inclined and reset.
At the beginning, the extending lengths of the four telescopic struts 120 are the same, the adjusting blocks 200 are abutted against the ground, the whole scaffold is in a balanced state, and workers can normally work on the frame plates 100. Because building site ground is mostly the soil, when the workman walked round the back and forth on the scaffold, thereby the pressure difference of four fulcrums of scaffold to ground leads to somewhere fulcrum to sink into ground, the scaffold is no longer four point supports this moment, the telescopic strut 120 that is in the diagonal position of sunk position can the perk break away from with ground, the scaffold can be to the sunk part slope (because of regulating block 200 and telescopic strut 120 are articulated, regulating block 200 laminates ground, telescopic strut 120 inclines along with landing leg 112 in step), if the workman continues to walk round the back and forth on frame plate 100 and can make the scaffold produce and rock, produce the influence to workman's continuation construction. When the worker is far away from the opposite angle of the sunken telescopic strut 120, the scaffold is in a reset state under the treading action of the worker, the adjusting device enables the telescopic strut 120 at the sunken position to move downwards, the total length of the telescopic strut 120 and the supporting leg 112 after moving downwards is increased, the extending length of the telescopic strut 120 at the sunken position is increased when the scaffold is restored to the horizontal position, the sunken part adjusting block 200 can be attached to the bottom surface of the pit after the scaffold is reset, therefore, the scaffold after resetting is continuously supported by four supporting points, the scaffold cannot rock again, and the safety of construction workers is ensured.
In a further embodiment, as shown in fig. 4, 5 and 7, a plurality of rotatable, vertically extending, screw rods 250 are provided on the top plate 111, with the lower ends of the screw rods 250 being located inside the respective legs 112 and being threadedly engaged with the upper ends of the telescopic struts 120.
The adjusting device comprises a first adjusting toothed bar 240 and a second adjusting toothed bar 241 which can be arranged inside the telescopic strut 120 in a vertically sliding mode, the lower ends of the first adjusting toothed bar 240 and the second adjusting toothed bar 241 are in transmission connection with corresponding adjusting blocks 200 through first transmission parts, the upper ends of the first adjusting toothed bar 240 and the second adjusting toothed bar 241 are in transmission connection with spiral rods 250 adjacent to the first adjusting toothed bar through second transmission parts respectively, the first transmission parts are used for converting the relative deflection of the telescopic strut 120 and the adjusting blocks 200 into the movement of the first adjusting toothed bar 240 or the second adjusting toothed bar 241, the second transmission parts are used for converting the movement of the first adjusting toothed bar 240 or the second adjusting toothed bar 241 into the rotation of the corresponding spiral rods 250, and then the telescopic strut 120 is driven to rotate and move. Specifically, when one of the telescopic struts 120 is sunken to cause the scaffold to tilt or reset, the first transmission part controls the first adjusting toothed bar 240 or the second adjusting toothed bar 241, which is in transmission connection with the telescopic strut 120 at the sunken position, to move, and then controls the corresponding telescopic strut 120 to move through the second transmission part, and finally, the corresponding telescopic strut 120 extends to continuously support the scaffold when the scaffold is reset.
In a further embodiment, the first transmission part includes a first adjustment lever 210 and a second adjustment lever 211, the first adjustment lever 210 and the second adjustment lever 211 are respectively located at two sides of the hinge shaft and the lower ends thereof are hinged to the adjustment block 200, the first adjustment lever 210 and the second adjustment lever 211 are respectively provided with a first slider 220 and a second slider 221, the first slider 220 and the second slider 221 and the adjustment block 200 are relatively slidable along a first direction (the first direction is a horizontal direction perpendicular to the hinge shaft, and the direction facing the telescopic strut 120 shown in fig. 5, 6, 8 and 9 is a left-right direction), a first push plate 2101 and a first adjustment toothed plate 230 are slidably arranged above the first slider 220 along the first direction, and the first adjustment toothed plate 230 can move up and down along with the first slider 220, a second push plate 2111 and a second adjustment toothed plate 231 are slidably arranged above the second slider 221 along the first direction, the second adjusting toothed plate 231 can move up and down along with the first sliding block 220, the first push plate 2101 is fixedly connected with the first adjusting rod 210, the second push plate 2111 is fixedly connected with the second adjusting rod 211, the first adjusting toothed plate 230 and the second adjusting toothed plate 231 are positioned at the inner sides of the first push plate 2101 and the second push plate 2111, and the first adjusting toothed plate 230 and the first push plate 2101, and the second adjusting toothed plate 231 and the second push plate 2111 are connected through a plurality of elastic supporting pieces; the lower ends of the first and second adjusting rack bars 240 and 241 are provided with coupling gears, the coupling gear on the first adjusting rack bar 240 can be engaged with the first adjusting toothed plate 230, and the coupling gear on the second adjusting rack bar 241 can be engaged with the second adjusting toothed plate 231. It should be noted that the elastic supporting member in the present invention is a spring, and naturally, the elastic supporting member may also be an elastic block, an elastic rod, or other elements or components that have elasticity and can achieve the functions thereof.
In a further embodiment, the upper surface of the top plate 111 is provided with a mounting groove, the second transmission part comprises a transmission gear 260 rotatably disposed on the side wall of the mounting groove and a first rotating shaft 280 and a second rotating shaft 281 rotatably disposed on the bottom wall of the mounting groove, the transmission gear 260 comprises a cylindrical tooth section and a conical tooth section which are connected, the cylindrical tooth section is engaged with the corresponding first adjusting tooth bar 240 or second adjusting tooth bar 241, the first rotating shaft 280 and the second rotating shaft 281 are respectively parallel to and adjacent to two diagonal lines of the bracket 110, and the top end of the spiral rod 250 is provided with a main bevel gear 251; inner end bevel gears 272 are arranged at the inner ends of the first rotating shaft 280 and the second rotating shaft 281, the two inner end bevel gears 272 are meshed with each other, a first outer end bevel gear 270 is arranged at the outer end of the first rotating shaft 280, a second outer end bevel gear 271 is arranged at the outer end of the second rotating shaft 281, the first outer end bevel gear 270 is meshed with the conical tooth section of the corresponding transmission gear 260, and the second outer end bevel gear 271 is meshed with the corresponding main bevel gear 251; the first outer end bevel gear 270 and the first rotating shaft 280 are connected in a unidirectional rotation by a unidirectional structure. When the corresponding first adjusting rack bar 240 or second adjusting rack bar 241 moves downwards to drive the transmission gear 260 to rotate and the first outer end bevel gear 270 rotates, the one-way structure enables the first outer end bevel gear 270 and the first rotating shaft 280 to rotate relatively; and when the corresponding first adjusting rack 240 or second adjusting rack 241 moves upwards to drive the transmission gear 260 to rotate and the first outer end bevel gear 270 rotates, the first outer end bevel gear 270 drives the first rotating shaft 280 to rotate, and the one-way structure is a ratchet structure.
For convenience of transmission and control, the lower ends of the first adjusting toothed bar 240 and the second adjusting toothed bar 241 are arranged inside and outside, and the upper ends are arranged left and right, and the first adjusting toothed bar 240 is positioned at the rear right side; and at the place where the second transmission parts are overlapped, the corresponding second transmission parts are arranged in a staggered way up and down. The leg 112 and telescoping leg 120 recesses indicated at a in fig. 7 are illustrated as examples:
when the leg 112 and the telescopic strut 120 at a sink into the ground and the telescopic strut 120 at the opposite side is tilted up and separated from the ground, the scaffold is inclined to the left, and the telescopic struts 120 at the two sides of the telescopic strut 120 at the sink position are relatively deflected by a certain angle with the adjusting block 200 connected thereto, as shown in fig. 8. At this time, the first adjusting rod 210 and the second adjusting rod 211 in the telescopic strut 120 (the middle telescopic strut 120 shown in fig. 8, in which the adjusting device is arranged) are deflected relative to the adjusting block 200 synchronously with the telescopic strut 120 due to the limitation of the first slider 220 and the second slider 221, and after the first adjusting rod 210 and the second adjusting rod 211 are deflected, they slide relative to the first slider 220 and the second slider 221, and both slide left. The first adjusting lever 210 positioned at the left side drives the first push plate 2101 to slide leftward, the first push plate 2101 pulls the first adjusting toothed plate 230 to slide leftward through the corresponding elastic supporting members, the first adjusting toothed plate 230 is separated from the coupling gear at the lower end of the first adjusting toothed bar 240, the second adjusting lever 211 at the right side drives the second push plate 2111 to slide leftward, and the second push plate 2111 extrudes the second adjusting toothed plate 231 through the corresponding elastic supporting members to be engaged with the coupling gear at the lower end of the second adjusting toothed bar 241. Meanwhile, the second adjusting rod 211 inclines leftwards, so that the second sliding block 221 is pulled to slide downwards, the second sliding block 221 drives the second adjusting toothed plate 231 to slide downwards when sliding downwards, the second adjusting toothed plate 231 slides downwards, the second adjusting toothed plate 241 pulls the second adjusting toothed rod 241 to slide downwards through the corresponding combination gear, the second adjusting toothed rod 241 slides downwards to drive the corresponding transmission gear 260 to rotate, the transmission gear 260 drives the corresponding first outer end bevel gear 270 to rotate, at the moment, because the first outer end bevel gear 270 is in one-way transmission connection with the first rotating shaft 280, the first outer end bevel gear 270 rotates relative to the first rotating shaft 280, and the first rotating shaft 280 does not rotate; and the other side does not transmit because the first adjusting toothed plate 230 and the first adjusting toothed bar 240 are disengaged.
When the worker moves from the left side to the right side of the scaffold, the scaffold deflects to the right side under the action of gravity and resets. When the support leg 112 and the telescopic strut 120 are deflected and reset, the second adjusting lever 211 is reset and drives the second adjusting toothed plate 231 to move upwards through the second slider 221, the second adjusting toothed plate 231 moves upwards and drives the second adjusting toothed rod 241 to move upwards through the corresponding combination gear, the second adjusting toothed rod 241 moves upwards and drives the corresponding transmission gear 260 to rotate, the transmission gear 260 rotates and drives the first outer end bevel gear 270 to rotate, at this time, the first outer end bevel gear 270 can drive the corresponding first rotating shaft 280 to rotate, the first rotating shaft 280 rotates and drives the corresponding second rotating shaft 281 to rotate through the inner end bevel gear 272, the second rotating shaft 281 rotates and drives the corresponding second outer end bevel gear 271 to rotate, thereby driving the main bevel gear 251 at the upper end of the telescopic strut 120 in the low-lying position to rotate, the main bevel gear 251 rotates and drives the corresponding spiral rod 250 to rotate, the spiral rod 250 rotates and drives the telescopic strut 120 in the low-lying position to slide downwards and extend out, until the second adjustment bar 211 is completely reset, i.e. the scaffolding is in a horizontal state. At this time, because the telescopic strut 120 at the low-lying position extends a little over length, the scaffold is continuously supported by four supporting points after being reset, and the scaffold does not shake any more, so that the safety of construction workers is ensured. Meanwhile, when the constructor treads to make one telescopic strut 120 sunken, the corresponding first adjusting toothed bar 240 or second adjusting toothed bar 241 moves downwards, the extension length of the telescopic strut 120 is unchanged, when the constructor leaves, the corresponding first adjusting toothed bar 240 or second adjusting toothed bar 241 moves upwards and the extension length of the telescopic strut 120 is increased, so that the first adjusting toothed bar 240 or second adjusting toothed bar 241 moves downwards and then moves upwards to ensure that the transmission space is enough, the device is compact in structure, and meanwhile, when the constructor leaves the scaffold to reset, the extension length of the telescopic strut 120 is increased, the resistance (gravity of the constructor) which needs to be overcome by the first adjusting toothed bar 240 or second adjusting toothed bar 241 can be reduced, and the movement is more reasonable.
In a further embodiment, as shown in fig. 1 and 2, the side walls of the shelf board 100 are provided with ladders 130, and a constructor can reach the top surface of the shelf board 100 through the ladders 130, which is convenient and fast.
In a further embodiment, two tie rods 140 are connected between two adjacent legs 112, and the two tie rods 140 are crossed in an "x" shape and fixedly connected at the crossing position, so as to improve the support stability of the scaffold.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a scaffold frame for bridge construction with telescopic pillar which characterized in that: the method comprises the following steps:
the support is provided with a top plate and four support legs arranged at four corners of the top plate, a frame plate is fixedly arranged above the top plate, and the support legs are hollow;
the telescopic struts are slidably inserted into the supporting legs, and the lower end of each telescopic strut is hinged with an adjusting block through an articulated shaft extending inside and outside; the lower end surface of the telescopic strut is an arc surface, the axis of the arc surface is parallel to the hinge shaft, and the lower bottom surface of the adjusting block is tangent to the lower end surface of the telescopic strut;
and the adjusting devices are at least provided with two adjusting blocks and are respectively positioned on two telescopic struts on different diagonal lines, the adjusting blocks at the positions of the adjusting blocks and the telescopic struts on the two adjacent sides of the adjusting blocks are connected in a transmission manner by the adjusting devices, and the adjusting devices are used for driving the telescopic struts connected with the adjusting blocks to move downwards relative to the supporting legs, wherein the lower bottom surfaces of the telescopic struts sink into the ground, so that the telescopic struts continuously support the scaffold after the scaffold is inclined and reset.
2. A scaffolding for bridge construction with telescopic struts according to claim 1 wherein: a plurality of rotatable and vertically extending spiral rods are arranged on the top plate, and the lower ends of the spiral rods are positioned in the corresponding supporting legs and are in threaded connection with the upper ends of the telescopic supporting columns;
adjusting device sets up in the inside first regulation ratch and the second regulation ratch of telescopic support including can sliding from top to bottom, the lower extreme of first regulation ratch and second regulation ratch is through the transmission of first transmission portion connection corresponding regulating block, the upper end is connected rather than adjacent hob through the transmission of second transmission portion respectively, first transmission portion is used for turning into the relative deflection of telescopic support and regulating block the removal of first regulation ratch or second regulation ratch, second transmission portion is used for turning into the rotation of corresponding hob with the removal of first regulation ratch or second regulation ratch, and then drive telescopic support and rotate the removal.
3. A scaffolding for bridge construction with telescopic struts according to claim 2 wherein: the first transmission part comprises a first adjusting rod and a second adjusting rod, the first adjusting rod and the second adjusting rod are respectively positioned at two sides of the articulated shaft, the lower ends of the first adjusting rod and the second adjusting rod are hinged with the adjusting block, a first sliding block and a second sliding block are respectively arranged on the first adjusting rod and the second adjusting rod, the first sliding block, the second sliding block and the adjusting block can relatively slide along a first direction, the first direction is a horizontal direction perpendicular to the articulated shaft, a first push plate and a first adjusting toothed plate are slidably arranged above the first sliding block along the first direction, the first adjusting toothed plate can move up and down along the first direction, a second push plate and a second adjusting toothed plate are slidably arranged above the second sliding block along the first direction, the second adjusting toothed plate can move up and down along the first sliding block, the first push plate is fixedly connected with the first adjusting rod, the second push plate is fixedly connected with the second adjusting rod, the first adjusting toothed plate and the second adjusting toothed plate are positioned at the inner sides of the first push plate and the second push plate, the first adjusting toothed plate and the first push plate and the second adjusting toothed plate and the second push plate are connected through a plurality of elastic supporting pieces; the lower extreme of first regulation rack bar and second regulation rack bar all is provided with combination gear, and combination gear on the first regulation rack bar can be with first regulation pinion rack meshing, and combination gear on the second regulation rack bar can be with second regulation pinion rack meshing.
4. A scaffolding for bridge construction with telescopic struts according to claim 3 wherein: the elastic supporting piece is a spring.
5. A scaffolding for bridge construction with telescopic struts according to claim 3 wherein: the upper surface of the top plate is provided with a mounting groove, the second transmission part comprises a transmission gear which is rotatably arranged on the side wall of the mounting groove and a first rotating shaft and a second rotating shaft which are rotatably arranged on the bottom wall of the mounting groove, the transmission gear comprises a cylindrical tooth section and a conical tooth section which are connected, the cylindrical tooth section is meshed with a corresponding first adjusting tooth rod or a corresponding second adjusting tooth rod, the first rotating shaft and the second rotating shaft are respectively parallel to and adjacent to two diagonals of the support, and the top end of the spiral rod is provided with a main bevel gear; the inner ends of the first rotating shaft and the second rotating shaft are provided with inner bevel gears which are meshed with each other, the outer end of the first rotating shaft is provided with a first outer end bevel gear, the outer end of the second rotating shaft is provided with a second outer end bevel gear, the first outer end bevel gear is meshed with the conical tooth section of the corresponding transmission gear, and the second outer end bevel gear is meshed with the corresponding main bevel gear.
6. A scaffold for bridge construction with telescopic struts according to claim 5, wherein: the first outer end bevel gear and the first rotating shaft are in one-way rotation connection through a one-way structure, and the one-way structure enables the first outer end bevel gear and the first rotating shaft to rotate relatively when the first adjusting rack bar or the second adjusting rack bar moves downwards to drive the transmission gear to rotate and the first outer end bevel gear rotates; and when the first adjusting rack bar or the second adjusting rack bar moves upwards to drive the transmission gear to rotate so as to drive the first outer end bevel gear to rotate, the first outer end bevel gear drives the first rotating shaft to rotate.
7. A scaffold for bridge construction with telescopic struts according to claim 6, wherein: the one-way structure is a ratchet structure.
8. A scaffolding for bridge construction with telescopic struts according to claim 1 wherein: the lateral wall of frame plate is provided with the cat ladder.
9. A scaffolding for bridge construction with telescopic struts according to claim 1 wherein: two pull rods are connected between two adjacent support legs, and the two pull rods are arranged in a crossed manner and fixedly connected at the crossed position.
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| CN202210631271.1A CN114703763B (en) | 2022-06-06 | 2022-06-06 | Scaffold for bridge building with telescopic pillar |
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| CN202210631271.1A CN114703763B (en) | 2022-06-06 | 2022-06-06 | Scaffold for bridge building with telescopic pillar |
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| CN114703763B CN114703763B (en) | 2022-09-06 |
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| CN112814347A (en) * | 2021-01-06 | 2021-05-18 | 刘青凉 | Scaffold for architectural decoration |
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| CN114396918A (en) * | 2022-01-24 | 2022-04-26 | 安徽华之语建筑工程有限公司 | Building construction scaffold frame skew detection device |
| CN114439211A (en) * | 2022-03-14 | 2022-05-06 | 河南骏飞建设工程有限公司 | Building scaffold support structure |
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| US6247273B1 (en) * | 1999-02-16 | 2001-06-19 | Reechcraft, Inc. | Adjustable form brace |
| US6959785B1 (en) * | 2003-10-24 | 2005-11-01 | Chilton Wade J | Stabilizing system for ladders and scaffolding |
| CN210217075U (en) * | 2019-04-10 | 2020-03-31 | 温州中领建设有限公司 | Multifunctional scaffold |
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| CN114703763B (en) | 2022-09-06 |
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