CN114541750B - Large-span cornice supporting structure and construction process thereof - Google Patents
Large-span cornice supporting structure and construction process thereof Download PDFInfo
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- CN114541750B CN114541750B CN202210181889.2A CN202210181889A CN114541750B CN 114541750 B CN114541750 B CN 114541750B CN 202210181889 A CN202210181889 A CN 202210181889A CN 114541750 B CN114541750 B CN 114541750B
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- wedge block
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/066—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for overhangs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Abstract
The application discloses a large-span cornice supporting structure and construction process thereof, belonging to the field of buildings. A large-span cornice support structure comprises a support body; the first pressing assembly comprises a first wedge-shaped block and a second wedge-shaped block which are in linkage; the second compresses tightly the subassembly, it with first wedge sets up jointly support body's same side, second wedge sliding connection is in first wedge orientation one side of second compressing tightly the subassembly and the mating surface of both are the inclined plane, the second wedge with form the interval between the second compressing tightly the subassembly, this application bearing structure can reduce the area of destruction to indoor wall, improves bearing structure's steadiness and the convenience of installation. The construction process of the large-span cornice support structure comprises the steps of arranging a support body on a lower floor slab below a lintel and clamping the lintel; setting up a vertical pipe, a horizontal pipe, an inclined pipe and a longitudinal pipe outdoors; and then the quick installation of the supporting mechanism is completed.
Description
Technical Field
The application relates to the field of buildings, in particular to a large-span cornice supporting structure and a construction process thereof.
Background
The cornice is a part of the roof layer which is used for corning out the outer wall and is used for protecting the outer wall and facilitating roof drainage. The width of cornices is generally not more than 50 cm, but with the development of modern building designs, large-span cornices of 1.24 meters, 1.34 meters, 1.4 meters and the like are widely applied to high-rise buildings.
As shown in fig. 1, in the existing large-span cornice pouring process, the main steps are as follows: 1. a plurality of horizontal transverse pipes 1, vertical pipes 2, horizontal longitudinal pipes 3 and inclined pipes (not shown) are arranged indoors and outdoors and are built into a supporting body 4; 2. a pouring template 5 is arranged at the top of the support body 4; 3. pouring concrete on the pouring template 5; 4. after the concrete is solidified, the pouring formwork 5 and the concrete are separated, and finally the cornice 6 is formed.
According to the supporting scheme, the inventor finds that a plurality of transverse pipes 1, vertical pipes 2 and longitudinal pipes 3 are required to be arranged outdoors, a plurality of transverse pipes 1, vertical pipes 2 and longitudinal pipes 3 are required to be arranged indoors, and all pipes are inserted into indoor floors, so that the floors can be damaged in a large area, all the pipes are independent individuals, and the pipes are required to be overlapped one by one to form a whole during installation, so that time and labor are consumed, and the method is very inconvenient.
Disclosure of Invention
In order to reduce the damage to indoor floor, improve the convenience of installation simultaneously, this application provides a large-span cornice bearing structure and construction process thereof.
In a first aspect, the present application provides a large-span cornice supporting structure, which adopts the following technical scheme:
a large span cornice support structure comprising:
the support body is positioned on the lower floor slab below the lintel, a vertical pipe is arranged outdoors, an inclined pipe is connected between the support body and the vertical pipe, the connection point of the inclined pipe and the vertical pipe is higher than the connection point of the inclined pipe and the support body, and the top end of the vertical pipe is used for supporting part of a pouring template;
the first pressing assembly comprises a first wedge-shaped block and a second wedge-shaped block which are in linkage, and the top of the first wedge-shaped block is used for supporting one end, close to the lintel, of the pouring template;
the second pressing assembly and the first wedge block are arranged on the same side of the supporting body, the second wedge block is connected to one side of the first wedge block, which faces the second pressing assembly, in a sliding manner, the matching surfaces of the first wedge block and the second wedge block are inclined planes, and the second wedge block is inclined from bottom to top from the direction away from the lintel to the direction close to the lintel;
the gap is formed between the second wedge-shaped block and the second compression assembly, the lintel is positioned in the gap, the second wedge-shaped block is propped against one side of the lintel, and the second compression assembly is propped against the other side of the lintel.
Through adopting the technical scheme, the supporting body is firstly placed on the lower floor slab below the lintel, the second pressing component and the first pressing component are respectively arranged on two sides of the lintel at the window, then the cushion block is placed below the supporting body to heighten the supporting body, meanwhile, the first pressing component and the second pressing component are lifted to the end that the first wedge block can support the pouring template, other parts of the pouring template are supported through the outdoor transverse pipe, the vertical pipe, the longitudinal pipe and the inclined pipe, and the inclined pipe and the supporting body on the supporting body form a stable triangular support;
compare and set up each pipe in indoor, this application's large-span bearing structure that cornices installs more conveniently, and the supporting effect is better.
Optionally, the device also comprises an upper and lower jacking assembly or a horizontal jacking assembly;
the upper and lower tight subassembly one end is connected the support body is used for the top tightly support the body with between the floor down, the tight subassembly setting in horizontal top is in on the support body is used for the top tightly between two relative and parallel window vertical outer walls.
Through adopting above-mentioned technical scheme, utilize the window department to go up the parallel lintel and down between the floor position or the vertical outer wall of window between the parallel both sides set up tight subassembly in top, can make the more stable location of whole bearing structure in window department, and then can implement more effectual support to pouring the template.
Optionally, the horizontal propping assembly comprises a horizontal cross rod arranged along the length direction of the supporting body, two ends of the horizontal cross rod are connected with horizontal struts in a threaded manner, the threaded directions of two ends of the horizontal cross rod are opposite, one end of one horizontal strut is used for propping against or inserting into the window vertical outer wall opposite to the horizontal strut, and one end of the other horizontal strut is used for propping against or inserting into the window vertical outer wall opposite to the horizontal strut;
the horizontal cross rod is rotationally connected with the support body, and the two horizontal struts are in sliding connection with the support body; or the horizontal cross rod is fixedly connected with the support body, and the two horizontal struts are rotationally connected with the support body.
By adopting the technical scheme, an operator drives two horizontal struts to slide back to back by rotating the horizontal cross rod, one end of one horizontal strut is abutted against or inserted into the window vertical outer wall on one side, and one end of the other horizontal strut is abutted against or inserted into the window vertical outer wall on the other side, so that horizontal tensioning is realized;
or by rotating two horizontal struts, each horizontal strut can be abutted against or inserted into a corresponding window vertical outer wall.
Optionally, the upper and lower tight subassembly that pushes up includes vertical support piece and horizontal stabilizer blade, the vertical support piece top with support body rotates to be connected, the bottom with stabilizer blade telescopic connection.
Through adopting above-mentioned technical scheme, can adjust its length that stretches out from the stabilizer blade through rotatory vertical support spare, and then make vertical support spare's one end top tightly support body, the other end supports the floor down through the stabilizer blade tightly.
Optionally, a first cavity is formed in the support body, and the horizontal cross rod is located in the first cavity and is rotationally connected with the cavity wall;
the large-span cornice support structure further comprises a first vertical pushing assembly, a second vertical pushing assembly and a first horizontal pushing assembly, wherein the first vertical pushing assembly comprises a first bevel gear, a second bevel gear, a wedge-shaped pushing piece, a horizontal pushing rod and a vertical pushing rod, the first bevel gear is fixed on a horizontal cross rod positioned in the first cavity, and the second bevel gear is meshed with the first bevel gear;
the vertical rotating shaft is arranged on the second bevel gear in a penetrating mode, the vertical rotating shaft is connected with the bottom wall of the first cavity in a rotating mode, the wedge-shaped push plate is arranged on the vertical rotating shaft, a sliding groove is formed in the bottom wall of the first cavity along the width direction of the supporting body, the horizontal push rod is arranged in the sliding groove in a sliding mode, the wedge-shaped push plate is propped against one end of the horizontal push rod, the other end of the horizontal push rod is propped against the first vertical push rod, the matching surfaces of the first vertical push rod and the first vertical push rod are inclined planes, and the first vertical push rod can upwards extend out of the supporting body to drive the second wedge-shaped block.
Through adopting above-mentioned technical scheme, rotate horizontal pole and drive the first bevel gear that is located above it and rotate, first bevel gear drives the second bevel gear and rotates, the vertical axis of rotation of second bevel gear drive rotates, vertical axis of rotation drives wedge pushing piece and rotates, wedge pushing piece drive horizontal push rod horizontal migration, the upward movement of first vertical push rod of horizontal push rod drive, first vertical push rod can upwards stretch out supporting body drive second wedge, and then when the length of stretching out through adjustment horizontal branch, fine setting spaced size, and then make second wedge and the firm centre gripping of second hold-down assembly on the lintel.
Optionally, the vertical support assembly is further included, and it is including setting up first broken line spare and at least three first flexonics spare in support body bottom, three flexonics spare is kept away from the joint connection backup pad of dismantling jointly of one end of support body bottom, the backup pad is just right one side of support body bottom is provided with the second and buckles the piece, first buckling piece with connect the second flexonics spare between the second buckling piece, the second flexonics spare with the junction of second buckling piece is higher than the junction of second flexonics spare with first broken line spare.
Through adopting above-mentioned technical scheme, when supporting body upper portion received pressure, first piece and the second piece of buckling all received compressive force, and the first piece of buckling and second buckle between the piece and pull each other through the second flexible connection spare again, and then can carry out stable support to supporting body's lower part.
Optionally, the device further comprises an angle adjusting assembly, wherein the angle adjusting assembly comprises a horizontal plate horizontally connected with the supporting plate, a first connecting rod hinged on the horizontal plate and a telescopic second connecting rod with one end hinged with the first connecting rod, and the horizontal plate and the first compressing assembly are positioned on the same side of the second flexible connecting piece;
the other end of the second connecting rod is hinged to the horizontal plate, the first connecting rod is upwards arranged and is inclined towards the direction away from the first pressing component, and the second connecting rod is upwards arranged and is inclined towards the direction close to the first pressing component.
Through adopting above-mentioned technical scheme, through manual pulling or rope pulling first connecting rod, can make the second connecting rod stretch out, and then fine setting first connecting rod's inclination to carry out better horizontal support to pouring the template.
Optionally, a second cavity is formed in the support body, and the top of the vertical support piece extends into the second cavity;
a second vertical pushing assembly is arranged in the second cavity and comprises a third bevel gear, a horizontal rotating assembly and a vertical telescopic assembly which are fixedly connected to the top of the vertical support piece, and the horizontal rotating assembly and the vertical telescopic assembly are arranged on the same side of the third bevel gear;
the horizontal rotating assembly comprises a horizontal rotating shaft arranged on the cavity wall of the second cavity, a fourth bevel gear fixed at one end of the horizontal rotating shaft and a fifth bevel gear at the other end of the horizontal rotating shaft, and the fourth bevel gear is meshed with the third bevel gear;
the vertical telescopic component comprises a hollow vertical fixed shaft arranged on the cavity wall of the second cavity, a sixth bevel gear connected with the vertical fixed shaft in a rotating mode and a second vertical push rod connected with the sixth bevel gear in a threaded mode, the sixth bevel gear is meshed with the fifth bevel gear, one end of the second vertical push rod can extend into the vertical fixed shaft, and the other end of the second vertical push rod can extend upwards out of the supporting body to prop against the second wedge block.
Through adopting above-mentioned technical scheme, when adjusting the length that vertical support piece stretched out, the third bevel gear took place to rotate, drives the fourth bevel gear and rotates, and the fourth gear rotates and drives horizontal axis of rotation and fifth bevel gear and rotate, and the fifth bevel gear drives sixth bevel gear and rotates, and sixth bevel gear drives the vertical push rod of second and reciprocates, and the vertical push rod of second can upwards stretch out the cavity wall drive second wedge of second cavity, and then fine setting spaced size makes second wedge and the firm centre gripping of second hold-down assembly on the lintel.
Optionally, the second compacting assembly includes third wedge and fourth wedge of linkage, the third wedge sets up on the support body, fourth wedge sliding connection is in third wedge orientation one side of second wedge, the mating surface of third wedge and fourth wedge is the inclined plane and from the bottom up by keeping away from the direction of lintel is to being close to the direction slope of lintel, second wedge with form between the fourth wedge the interval.
By adopting the technical scheme, besides the second wedge-shaped block, the size of the gap can be adjusted to adapt to the size of the lintel by arranging the third wedge-shaped block and the fourth wedge-shaped block which are linked and adjusting the position of the fourth wedge-shaped block on the third wedge-shaped block.
In a second aspect, the application provides a construction process of the large-span cornice supporting structure, which adopts the following technical scheme:
a construction process of a large-span cornice supporting structure comprises the following steps:
s1, arranging a support body on a lower floor below a lintel, and enabling the lintel to be positioned in the interval, wherein the first compression assembly is propped against one side of the lintel, and the second compression assembly is propped against the other side of the lintel;
s2, erecting a vertical pipe outdoors according to the position of the supporting body in the step S1;
s3, setting up a transverse pipe and an inclined pipe between the vertical pipe and the supporting body according to the position of the vertical pipe in the step S2;
s4, erecting a vertical pipe at the intersection of the transverse pipe and the vertical pipe according to the intersection position of the transverse pipe and the vertical pipe in the step S3, placing one end of the pouring template on the first wedge block, and placing the other parts on the top of the outdoor vertical pipe.
By adopting the technical scheme, when the large-span cornice supporting structure is constructed, the supporting body is arranged below the lintel and the lintel is positioned in the interval, the first pressing component is propped against one side of the lintel, and the second pressing component is propped against the other side of the lintel; setting up a vertical pipe outdoors; a transverse pipe and an inclined pipe are erected between the vertical pipe and the supporting body; and erecting a vertical pipe at the intersection of the vertical pipe and the horizontal pipe, then placing one end of the pouring template on the first wedge-shaped block, and placing the other parts on the pipe body erected outdoors to finish the support of the pouring template.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the size of the interval can be adjusted by sliding the position of the second wedge block on the first wedge block, so that the lintel is clamped, the supporting body is positioned at the lower parts of the second wedge block and the first compression assembly and plays a certain supporting effect, one end of the pouring template is positioned at the first wedge block, and the other end of the pouring template is supported through the outdoor pipe, so that the pipe is not required to be arranged on the indoor floor, the installation efficiency is improved, and the damage to the indoor floor is reduced;
2. utilize window department upper and lower parallel lintel or the position of lower floor or the vertical outer wall of the parallel window in both sides to set up the tight subassembly in top, can make whole bearing structure more stable be located window department, and then can be better to the supporting effect of pouring the template.
Drawings
FIG. 1 is a schematic view of a large span cornice support structure of the prior art;
FIG. 2 is a schematic view of the large span cornice support structure of the present application disposed at a window;
FIG. 3 is a top view of the support body;
FIG. 4 is a cross-sectional view of a first embodiment of a large span cornice support structure of the present application;
FIG. 5 is an enlarged view of FIG. 4 at C;
FIG. 6 is a cross-sectional view taken along line D-D of FIG. 2, for use in embodying a second embodiment of the present application;
FIG. 7 is a cross-sectional view taken along line E-E of FIG. 2, for use in embodying a second embodiment of the present application;
FIG. 8 is an enlarged view of F in FIG. 7;
FIG. 9 is a cross-sectional view of a third embodiment of a large span cornice support structure of the present application;
FIG. 10 is a cross-sectional view of a fourth embodiment of a large-span cornice support structure of the present application;
FIG. 11 is an enlarged view at G in FIG. 10;
fig. 12 is a schematic view of the telescoping wand of fig. 11, with the telescoping wand hidden, to show that the ends of the saw tooth slide and retraction slide can be engaged.
Reference numerals illustrate:
1. the horizontal pipe, 2, the vertical pipe, 3, the vertical pipe, 4, the supporting body, 5, the pouring template, 6, the cornice, 7, the inclined pipe;
10. the support body, 11, the first cavity, 111, the chute, 12, the second cavity, 121, the bracket, 13 and the opening;
20. the first pressing component, 21, the first wedge block, 211, the anti-falling groove, 2111, the spring, 22, the second wedge block, 221, the anti-falling block, 2230 and the interval;
30. the second compressing assembly 31, the third wedge block 32 and the fourth wedge block;
41. the horizontal cross rod, 42, the horizontal support rod, 43, the first vertical pushing component, 431, the first bevel gear, 432, the second bevel gear, 433, the wedge-shaped pushing piece, 434, the horizontal push rod, 435, the first vertical push rod, 436 and the vertical rotation shaft;
51. the vertical support piece, 52, the horizontal support leg, 531, the third bevel gear, 532, the horizontal rotating component, 5321, the horizontal rotating shaft, 5322, the fourth bevel gear, 5323, the fifth bevel gear, 533, the vertical telescopic component, 5331, the vertical fixed shaft, 5332, the sixth bevel gear, 5333 and the second vertical push rod;
60. the vertical support assembly 61, the first folding line piece 62, the first flexible connecting piece 63, the support plate 64, the second folding piece 65 and the second flexible connecting piece;
70. the angle adjusting component, 71, a horizontal plate, 72, a first connecting rod, 73, a second connecting rod, 731, a fixed rod, 732, a telescopic rod, 7311, a sawtooth slideway, 7312, a retracting slideway, 741, a torsion spring, 742, a positioning rod, 743, a push-pull rod, 744, a push-pull piece, 7441, a first circular ring, 7442, a second circular ring, 7443, a connecting rod, 7444, a cylindrical pin, 74411, a first notch, 74412 and a second notch;
100. the vertical external wall comprises an external wall, 101, a window, 102, a lintel, 103, a lower floor, 104 and a window.
Detailed Description
The present application is described in further detail below in conjunction with figures 2-12.
The embodiment of the application discloses a large-span support structure that cornices.
Example 1
Referring to fig. 2, fig. 3, fig. 4 and fig. 5, a large-span cornice supporting structure is arranged at a window 101 of an outer wall 100, a lintel 102 is formed at the upper part of the window 101, a lower floor 103 is formed at the lower part of the window 101, window vertical outer walls 104 are formed at two sides of the lintel, an upper floor is formed at the inner side of the lintel 102, cornices 6 are outwards cornices at the tops of the lintel 102 and the window vertical outer walls 104, the large-span cornice supporting structure is used for supporting a pouring template 5, and the pouring template 5 is used for pouring concrete to form cornices 6.
The large-span cornice supporting structure comprises a supporting body 10, a first pressing component 20 and a second pressing component 30, wherein the supporting body 10 is arranged at the lower part of a lintel 102, the first pressing component 20 is arranged at one end of the supporting body 10, the second pressing component 30 is arranged at the other end of the supporting body 10, and the first pressing component 20 and the second pressing component 30 are symmetrically arranged.
The first pressing component 20 comprises a first wedge block 21 and a second wedge block 22 which are in linkage, the second wedge block 22 is slidably arranged on the first wedge block 21, and the matching surfaces of the first wedge block 21 and the second wedge block 22 are inclined surfaces.
The first wedge block 21 is provided with an anti-falling groove 211 towards the inclined surface of the second wedge block 22, the inclined surface of the second wedge block 22 towards the first wedge block 21 is provided with an anti-falling block 221 which is in sliding fit with the anti-falling groove 211, the size of the notch of the anti-falling groove 211 is smaller than the size of the groove bottom, the size of the anti-falling block 221 inserted into the anti-falling groove 211 is larger than the size of the joint of the anti-falling block 221 and the notch of the anti-falling groove 211, and the height of the second wedge block 22 is lower than the height of the first wedge block 21.
The first wedge block 21 is fixedly connected with the support body 10, the second wedge block 22 is positioned on the side of the first wedge block 21 facing the second compression assembly 30, and a space 2230 for accommodating the lintel 102 is formed between the second wedge block 22 and the second compression assembly 30.
By sliding the position of the second wedge 22 on the first wedge 21, the size of the gap 2230 and thus the tightness of the clamped lintel 102 can be adjusted.
To better adjust the spacing between the second wedge 22 and the second compression assembly 30, the second compression assembly 30 includes a third wedge 31 and a fourth wedge 32 that are linked. The third wedge 31 is arranged on the supporting body 10, the fourth wedge 32 is slidably connected to one side of the third wedge 31 facing the second wedge 22, the matching surfaces of the third wedge 31 and the fourth wedge 32 are inclined planes, a space 2230 is arranged between the second wedge 22 and the fourth wedge 32, the third wedge 31 is used for supporting an upper floor slab, and the height of the fourth wedge 32 is lower than that of the third wedge 31. Since the cornice 6 is higher than the upper floor, the height of the third wedge 31 is lower than the height of the first wedge 21.
In addition to the second wedge 22 being adjustable, by providing a third wedge 31 and a fourth wedge 32 that are linked, the position of the fourth wedge 32 on the third wedge 31 can be adjusted to adjust the size of the gap 2230 to fit the size of the lintel 102.
The anti-disengagement structure between the third wedge 31 and the fourth wedge 32 is the same as the anti-disengagement structure between the first wedge 21 and the second wedge 22, and will not be described again here.
In order to enable the large-span cornice supporting structure to be firmly clamped on the lintel 102, the large-span cornice supporting structure further comprises an upper jacking component and a lower jacking component, the upper jacking component comprises a vertical supporting piece 51 and a horizontal supporting leg 52, the top of the vertical supporting piece 51 is rotationally connected with the supporting body 10, the bottom of the vertical supporting piece is in threaded connection with the supporting leg 52, the length of the vertical supporting piece extending out of the supporting leg 52 can be adjusted through rotating the vertical supporting piece 51, one end of the vertical supporting piece 51 is enabled to jack up the supporting body 10, and the other end of the vertical supporting piece is enabled to abut against the lower floor 103 through the supporting leg 52.
The support leg 52 is also connected with an inclined tube 7 which inclines outdoors, the inclined tube 7 is arranged in an upward inclined manner from the support leg 52, a vertical tube 2 is arranged outdoors, a horizontal transverse tube 1 is arranged between the vertical tube 2 and the inclined tube 7, and a horizontal longitudinal tube 3 is arranged at the intersection of the transverse tube 1 and the vertical tube 2. In order to increase the structural stability, the support body 10 may also be provided with a chute 7 in the same way as the feet 52,
the working principle of the embodiment of the application is as follows: placing the feet 52 on the lower floor 103 below the lintel 102, adjusting the extension of the vertical supports 51 so that the lintel 102 is in the space 2230, while the lower surface of the lintel 102 is held against by the support body 10, the feet 52 being held against the lower floor 103;
the positions of the second wedge 22 and the fourth wedge 32 are adjusted so as to clamp the lintel 102, one end of the casting formwork 5 is set on the first wedge 21, the rest of the casting formwork 5 is passed through the outdoor horizontal pipe 1, the vertical pipe 2, the vertical pipe 3 and the inclined pipe 7, and then casting is completed on the casting formwork 5 to form the cornice 6.
The supporting body 10 is provided with a second cavity 12, and the top of the vertical supporting piece 51 extends into the second cavity 12 and is fixedly connected with a second vertical pushing assembly.
The second vertical pushing component comprises a third bevel gear 531 fixedly connected to the top of the vertical supporting piece 51, and further comprises two horizontal rotating components 532 and two vertical telescopic components 533, wherein one horizontal rotating component 532 and one vertical telescopic component 533 are a group, and the two groups are symmetrically arranged by taking the third bevel gear 531 as a center.
Four brackets 121 which are symmetrically arranged by taking the third bevel gear 531 as a center are fixed on the top wall of the second cavity 12, and each horizontal rotating component 532 comprises a horizontal rotating shaft 5321 which is arranged on two brackets 121 positioned on the same side of the third bevel gear 531, and the horizontal rotating shaft 5321 is in rotating connection with the brackets 121. A fourth bevel gear 5322 is fixed to one end of the horizontal rotation shaft 5321, a fifth bevel gear 5323 is fixed to the other end, and the fourth bevel gear 5322 is meshed with the third bevel gear 531.
Each vertical telescopic assembly 533 comprises a fixed shaft 5331, a sixth bevel gear 5332 rotationally connected with the vertical fixed shaft 5331 and a second vertical push rod 5333 in threaded connection with the sixth bevel gear 5332, wherein the fixed shaft 5331 is a hollow shaft and is fixed on the cavity bottom wall of the second cavity 12, and the second vertical push rod 5333 is inserted into the fixed shaft 5331 and can move up and down under the drive of the sixth bevel gear 5332.
The sixth bevel gear 5332 in the same set of horizontal rotation assemblies 532 is engaged with the fifth bevel gear 5323 in the vertical telescoping assembly 533, and the second vertical push rod 5333 can extend upward out of the top wall of the second cavity 12 into the anti-disengagement slot 211 of the first wedge 21 and push the anti-disengagement block 221.
In order to better apply force to the second vertical push rod 5333, the contact surface between the second vertical push rod 5333 and the escape prevention block 221 may be provided as a slope.
The vertical support piece 51 can be adjusted to extend out, and the size of the interval 2230 between the second wedge-shaped block 22 and the fourth wedge-shaped block 32 can be finely adjusted, so that the second wedge-shaped block 22 and the fourth wedge-shaped block 32 can be firmly clamped on the lintel 102.
Example two
Referring to fig. 6, 7 and 8, the difference between the second embodiment and the first embodiment is that in order to make the large-span cornice support structure more firmly clamped on the lintel 102, the large-span cornice support structure may employ a horizontal jacking assembly in addition to an upper and lower jacking assembly, the support body 10 is provided with a first cavity 11, the horizontal jacking assembly includes a horizontal cross bar 41 disposed along the length direction of the support body 10, which is located in the first cavity 11 and has two ends threaded with horizontal struts 42, and the directions of the threads at the two ends of the horizontal cross bar 41 are opposite so that the movement directions of the two horizontal struts 42 are opposite, and the two horizontal struts 42 can extend out of the cavity wall.
The horizontal cross rod 41 is rotatably connected with the support body 10, a limiting block can be arranged on the support body 10, and a limiting groove is arranged on the horizontal support rod 42, so that the horizontal support rod 42 is slidably connected with the support body 10.
When the horizontal cross bar 41 and the support body 10 are rotatably connected, an opening 13 is provided in the length direction of the support body 10, and the opening 13 communicates with the first cavity 11. The operator stretches his hand into the first cavity 11 through the opening 13, rotates the horizontal cross bar 41 manually, and drives the two horizontal struts 42 to slide back to back, one end of one horizontal strut 42 abuts against or is inserted into the window vertical outer wall 104 on one side, and one end of the other horizontal strut 42 abuts against or is inserted into the window vertical outer wall 104 on the other side.
Of course, the horizontal cross bar 41 and the supporting body 10 may also be fixedly connected, at this time, the two horizontal struts 42 and the supporting body 10 are rotatably connected and both the two horizontal struts 42 partially extend out of the supporting body 10, and one end of the horizontal struts 42 is abutted against or inserted into the window vertical outer wall 104 by rotating the extending portion of the horizontal struts 42.
The large span cornice support structure further comprises a first vertical pushing assembly 43 comprising a first bevel gear 431 fixed to the horizontal cross bar 41 in place in the first cavity 11, a second bevel gear 432 meshing with the first bevel gear 431, two wedge pushers 433, two horizontal pushers 434 and two first vertical pushers 435.
The second bevel gear 432 is provided with a vertical rotating shaft 436 in a penetrating manner and fixedly connected with the vertical rotating shaft 436, the vertical rotating shaft 436 is rotatably connected with the bottom wall of the first cavity 11, two wedge-shaped push pieces 433 are arranged on the vertical rotating shaft 436 and are provided with inclined parts with the same direction, two sliding grooves 111 are formed in the bottom wall of the first cavity 11 along the width direction of the supporting body 10, the two sliding grooves 111 are symmetrically distributed on two sides of the second bevel gear 432, one horizontal push rod 434 is arranged in one sliding groove 111, one wedge-shaped push piece 433 is abutted against one end of one horizontal push rod 434, the other end of one horizontal push rod 434 is abutted against one first vertical push rod 435, the two first vertical push rods 435 can extend upwards to the supporting body 10, one first vertical push rod 435 extends upwards to the top wall of the first cavity 11 to enter the anti-falling groove 211 of the first wedge block 21, the other first vertical push rod extends upwards to the top wall of the first cavity 11 to enter the anti-falling groove 211 of the third wedge block 31, and pushes the anti-falling block 221 of the fourth wedge block 32.
To facilitate the application of force, the contact surface between the horizontal push rod 434 and the first vertical push rod 435 may be provided as a slope, and the contact surface between the first vertical push rod 435 and the anti-drop block 221 may be provided as a slope.
In order to facilitate the second wedge 22 and the fourth wedge 32 to descend and return, springs 2111 are arranged on top walls of the anti-falling grooves 211 of the second wedge 22 and the fourth wedge 32, and one sides of the springs 2111, which are away from the top walls, are connected to the anti-falling blocks 221.
In comparison to the first embodiment, the third embodiment of the present application uses horizontal tightening instead of vertical tightening. And the third embodiment can adjust the extension length of the two horizontal struts 42 and fine tune the size of the interval 2230 between the second wedge 22 and the fourth wedge 32, so that the second wedge 22 and the fourth wedge 32 are firmly clamped on the lintel 102.
Example III
Referring to fig. 9, the large span cornice support structure of the third embodiment further includes a vertical support assembly 60, which includes an L-shaped first folding line member 61 disposed at the bottom of the support body 10 and four first flexible connection members 62 uniformly distributed at the bottom of the support body 10. The other ends of the four flexible connecting pieces 62 far away from the bottom of the supporting body 10 are jointly and detachably connected to the same supporting plate 63, and the first flexible connecting piece 62 is a chain or a rope and is adjustably connected with a hook on the supporting plate 63.
The backup pad 63 is provided with the second piece of buckling of L type to the one side of supporting body 10 bottom, and the riser connection supporting body 10 bottom of first piece of buckling 61, the riser connection supporting plate 63 of second piece of buckling 64, and the diaphragm height of first piece of buckling 61 is less than the diaphragm height of second piece of buckling 64, and is connected with second flexonics spare 65 between two diaphragms, and second flexonics spare 65 on the diaphragm of first piece of buckling 61 are the chain and with the couple adjustable connection on the diaphragm of second piece of buckling 64.
For the purpose of enhancing the stability, the cross plate of the first bending member 61 and the supporting plate 63 and the cross plate of the second bending member 64 and the bottom of the supporting body 10 can be adjustably connected by chains.
When the upper portion of the support body 10 is pressed, the first bending member 61 and the second bending member 64 are both subjected to compressive force, and the two transverse plates are mutually pulled through the second flexible connecting member 65.
Example IV
Referring to fig. 10, 11 and 12, the large-span cornice support structure of the fourth embodiment further includes an angle adjusting assembly 70 for being obliquely supported at an end of the casting mold 5 remote from the first compressing assembly 20 and capable of fine-adjusting an angle of the casting mold 5, which includes a horizontal plate 71 horizontally fixedly connected with the support plate 63, a first link 72 hinged on the horizontal plate 71, and a telescopic second link 73 having one end hinged with the first link 72, and the horizontal plate 71 and the first compressing assembly 20 are located at the same side of the second flexible connection member 65.
The other end of the second link 73 is hinged to the horizontal plate 71, the first link 72 is disposed upwardly and inclined in a direction away from the first pressing assembly 20, and the second link 73 is disposed upwardly and inclined in a direction approaching the first pressing assembly 20.
The lower surface of the horizontal plate 71 may be supported by a horizontal pipe 1, a vertical pipe 2 and a vertical pipe 3 provided outdoors.
The second link 73 includes a fixing rod 731 hinged to the horizontal plate 71, and the fixing rod 731 is slidably connected to a telescopic rod 732. The fixed rod 731 is provided with a saw-tooth slide 7311 for extending the telescopic rod 732 and a retraction slide 7312 located above the saw-tooth slide 7311, the retraction slide 7312 being for retracting the telescopic rod 732.
The telescopic rod 732 is provided with a driving component 74 for driving the telescopic rod 732 to extend, the driving component comprises a torsion spring 741 with one end arranged on the telescopic rod 732 and a positioning rod 742 arranged on the telescopic rod 732, the driving component also comprises a push-pull rod 743 and a push-pull piece 744, and the other end of the torsion spring 741 is connected to the push-pull rod 743.
The push-pull member 744 comprises a first ring 7441 and a second ring 7442, a connecting rod 7443 is disposed between the first ring 7441 and the second ring 7442, the outer diameter of the first ring 7441 is larger than that of the second ring 7442, the first ring 7441 is sleeved on the positioning rod 742, and the second ring 7442 is rotatably connected with a cylindrical pin 7444.
The torsion spring 741, the push-pull rod 743, the first circular ring 7441, the connecting rod 7443 and the second circular ring 7442 are sequentially far from the hinge joint of the second connecting rod 73 and the first connecting rod 72.
The outer circumference of the first ring 7441 is sequentially provided with a first notch 74411 and a second notch 74412, the first notch 74411 and the second notch 74412 are sequentially far away from the hinge joint of the second connecting rod 73 and the first connecting rod 72, and a hook is formed at one end of the push-pull rod 743 far away from the torsion spring 741.
To enable the cylindrical pin 7444 to pass from the saw-tooth slide 7311 into the retraction slide 7312, the saw-tooth slide 7311 and the retraction slide 7312 are engaged with each other near the hinge of the second link 73 and the first link 72.
In order for the cylindrical pin 7444 to be able to enter the saw-tooth slide 7311 from the retraction slide 7312, the saw-tooth slide 7311 and the retraction slide 7312 are engaged with each other at a position away from the hinge of the second link 73 and the first link 72.
When the first link 72 is pulled to extend the telescopic link 732, the hook is positioned in the first notch 74411 and the cylindrical pin 7444 is positioned in the saw-tooth slide 7311 under the torsion force of the torsion spring 741. Continuing to drag the first link 72, when the cylindrical pin 7444 is in the engaged position of the saw-tooth slide 7311 and the retraction slide 7312 near the hinge of the second link 73 and the first link 72, the cylindrical pin 7444 enters the retraction slide 7312 from the saw-tooth slide 7311, at which point the hook is in the second notch 74412 and the telescopic link 732 is retracted.
By pulling the first link 72 by hand or rope or winch, the telescopic rod 732 can be extended from the fixing rod 731, and thus the inclination angle of the first link 72 can be finely adjusted, so as to perform better horizontal support on the casting mold 5.
The embodiment of the application also discloses a construction process of the large-span cornice supporting structure.
A construction process of a large-span cornice supporting structure comprises the following steps:
s1, arranging the support body 10 on a lower floor 103 below the lintel 102, and enabling the lintel 102 to be positioned in a space 2230, wherein the first compression assembly 20 is abutted against one side of the lintel 102, and the second compression assembly 30 is abutted against the other side of the lintel 102;
s2, erecting a vertical pipe 2 outdoors according to the position of the supporting body 10 in the step S1;
s3, setting up a transverse pipe 1 and an inclined pipe 7 between the vertical pipe 2 and the supporting body 10 according to the position of the vertical pipe 2 in the step S2;
s4, according to the crossing position of the transverse pipe 1 and the vertical pipe 2 in the step S3, erecting a vertical pipe 3 at the crossing position of the transverse pipe 1 and the vertical pipe 2, placing one end of the pouring template 5 on the first wedge-shaped block 21, and placing the other parts at the top of the outdoor vertical pipe 2 to finish the support of the pouring template 5.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. Large-span cornice bearing structure, its characterized in that: comprising the following steps:
the support body (10) is positioned on a lower floor slab (103) below the lintel (102), a vertical pipe (2) is arranged outdoors, an inclined pipe (7) is connected between the support body (10) and the vertical pipe (2), the connection point of the inclined pipe (7) and the vertical pipe (2) is higher than the connection point of the inclined pipe (7) and the support body (10), and the top end of the vertical pipe (2) is used for supporting a part of pouring template (5);
the first compaction assembly (20) comprises a first wedge block (21) and a second wedge block (22) which are in linkage, and the top of the first wedge block (21) is used for supporting one end, close to the lintel (102), of the pouring formwork (5);
the second pressing assembly (30) and the first wedge block (21) are arranged on the same side of the supporting body (10) together, the second wedge block (22) is connected to one side of the first wedge block (21) facing the second pressing assembly (30) in a sliding mode, the matching surfaces of the first wedge block (21) and the second wedge block (22) are inclined planes, and the matching surfaces are inclined from bottom to top from the direction away from the lintel (102) to the direction close to the lintel (102);
-a space (2230) is formed between the second wedge block (22) and the second pressing assembly (30), the lintel (102) being located in the space (2230), the second wedge block (22) pressing against one side of the lintel (102), the second pressing assembly (30) pressing against the other side of the lintel (102);
the device also comprises an upper and lower jacking assembly or a horizontal jacking assembly;
one end of the upper and lower jacking components is connected with the supporting body (10) and is used for jacking between the supporting body (10) and the lower floor slab (103), and the horizontal jacking components are arranged on the supporting body (10) and are used for jacking between two opposite and parallel window vertical outer walls (104);
the upper and lower jacking assembly comprises a vertical supporting piece (51) and a horizontal supporting leg (52), the top of the vertical supporting piece (51) is rotationally connected with the supporting body (10), and the bottom of the vertical supporting piece is telescopically connected with the horizontal supporting leg (52);
a second cavity (12) is formed in the support body (10), and the top of the vertical support piece (51) extends into the second cavity (12);
a second vertical pushing assembly is arranged in the second cavity (12) and comprises a third bevel gear (531), a horizontal rotating assembly (532) and a vertical telescopic assembly (533), wherein the third bevel gear (531), the horizontal rotating assembly (532) and the vertical telescopic assembly (533) are fixedly connected to the top of the vertical support piece (51), and the horizontal rotating assembly (532) and the vertical telescopic assembly (533) are arranged on the same side of the third bevel gear (531);
the horizontal rotation assembly (532) comprises a horizontal rotation shaft (5321) arranged on the cavity wall of the second cavity (12), a fourth bevel gear (5322) fixed at one end of the horizontal rotation shaft (5321) and a fifth bevel gear (5323) fixed at the other end, and the fourth bevel gear (5322) is meshed with the third bevel gear (531);
the vertical telescopic assembly (533) comprises a hollow vertical fixed shaft (5331) mounted on the cavity wall of the second cavity (12), a sixth bevel gear (5332) rotatably connected with the vertical fixed shaft (5331) and a second vertical push rod (5333) in threaded connection with the sixth bevel gear (5332), the sixth bevel gear (5332) is meshed with the fifth bevel gear (5323), one end of the second vertical push rod (5332) can extend into the vertical fixed shaft (5331), and the other end of the second vertical push rod can extend upwards to the support body (10) to press the second wedge block (22).
2. A large span cornice support structure according to claim 1, wherein: the horizontal jacking assembly comprises a horizontal cross rod (41) arranged along the length direction of the supporting body (10), two ends of the horizontal cross rod (41) are connected with horizontal support rods (42) in a threaded mode, the threaded directions of the two ends of the horizontal cross rod (41) are opposite, one end of one horizontal support rod (42) is used for propping against or inserting into the window vertical outer wall (104) opposite to the horizontal cross rod, and one end of the other horizontal support rod (42) is used for propping against or inserting into the window vertical outer wall (104) opposite to the horizontal cross rod;
the horizontal cross rod (41) is rotationally connected with the support body (10), and the two horizontal struts (42) are in sliding connection with the support body (10); or the horizontal cross rod (41) is fixedly connected with the support body (10), and the two horizontal struts (42) are rotatably connected with the support body (10).
3. A large span cornice support structure according to claim 2, wherein: the support body (10) is provided with a first cavity (11), and the horizontal cross rod (41) is positioned in the first cavity (11) and is rotationally connected with the cavity wall;
the large-span cornice support structure further comprises a first vertical pushing assembly (43) which comprises a first bevel gear (431) fixed on a horizontal cross rod (41) positioned in the first cavity (11), a second bevel gear (432) meshed with the first bevel gear (431), a wedge-shaped pushing piece (433), a horizontal pushing rod (434) and a first vertical pushing rod (435);
the second bevel gear (432) is provided with a vertical rotating shaft (436) in a penetrating mode, the vertical rotating shaft (436) is connected with the bottom wall of the first cavity (11) in a rotating mode, the wedge-shaped pushing piece (433) is arranged on the vertical rotating shaft (436), the bottom wall of the first cavity (11) is provided with a sliding groove (111) along the width direction of the supporting body (10), the horizontal pushing piece (434) is arranged in the sliding groove (111) in a sliding mode, the wedge-shaped pushing piece (433) is propped against one end of the horizontal pushing piece (434), the other end of the horizontal pushing piece (434) is propped against the first vertical pushing piece (435) and the matching surface of the first vertical pushing piece and the first vertical pushing piece (435) is an inclined surface, and the first vertical pushing piece (435) can upwards extend out of the supporting body (10) to drive the second wedge-shaped block (22).
4. A long span cornice support structure according to claim 2 or 3, wherein: still include vertical supporting component (60), it is including setting up first broken line spare (61) and at least three first flexonics spare (62) of supporting body (10) bottom, three first flexonics spare (62) are kept away from one end of supporting body (10) bottom is the joint connection backup pad (63) can be dismantled jointly, backup pad (63) are just to the one side of supporting body (10) bottom is provided with second bending piece (64), first broken line spare (61) with connect second flexonics spare (65) between second bending piece (64), second flexonics spare (65) with the junction of second bending piece (64) is higher than second flexonics spare (65) with the junction of first broken line spare (61).
5. The large-span cornice support structure of claim 4, wherein: the device also comprises an angle adjusting assembly (70) which comprises a horizontal plate (71) horizontally connected with the supporting plate (63), a first connecting rod (72) hinged on the horizontal plate (71) and a telescopic second connecting rod (73) with one end hinged with the first connecting rod (72), wherein the horizontal plate (71) and the first pressing assembly (20) are positioned on the same side of the second flexible connecting piece (65);
the other end of the second connecting rod (73) is hinged to the horizontal plate (71), the first connecting rod (72) is upwards arranged and inclined in a direction away from the first pressing assembly (20), and the second connecting rod (73) is upwards arranged and inclined in a direction close to the first pressing assembly (20).
6. A long span cornice support structure according to any one of claims 1 to 5, wherein: the second compressing assembly (30) comprises a third wedge block (31) and a fourth wedge block (32) which are in linkage, the third wedge block (31) is arranged on the supporting body (10), the fourth wedge block (32) is slidably connected to one side of the third wedge block (31) towards the second wedge block (22), the matching surface of the third wedge block (31) and the fourth wedge block (32) is an inclined surface and is inclined from bottom to top from the direction far away from the lintel (102) to the direction close to the lintel (102), and a gap (2230) is formed between the second wedge block (22) and the fourth wedge block (32).
7. A construction process of the large-span cornice support structure according to any one of claims 1 to 6, wherein: the method comprises the following steps:
s1, arranging a support body (10) on a lower floor (103) below a lintel (102), and enabling the lintel (102) to be positioned in the interval (2230), wherein the first compression assembly (20) is abutted against one side of the lintel (102), and the second compression assembly (30) is abutted against the other side of the lintel (102);
s2, erecting a vertical pipe (2) outdoors according to the position of the supporting body (10) in the step S1;
s3, setting up a transverse pipe (1) and an inclined pipe (7) between the vertical pipe (2) and the supporting body (10) according to the position of the vertical pipe (2) in the step S2;
s4, according to the crossing position of the transverse pipe (1) and the vertical pipe (2) in the step S3, erecting a longitudinal pipe (3) at the crossing position of the transverse pipe (1) and the vertical pipe (2), placing one end of the pouring template (5) on the first wedge block (21), and placing the other parts at the top of the outdoor vertical pipe (2).
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