CN217106145U

CN217106145U - Crown beam formwork support assembly

Info

Publication number: CN217106145U
Application number: CN202122344736.9U
Authority: CN
Inventors: 褚为; 杜魁; 江齐刚
Original assignee: Wuhan Zhongli Geotechnical Engineering Co ltd
Current assignee: Wuhan Zhongli Geotechnical Engineering Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-08-02
Anticipated expiration: 2031-09-26

Abstract

The utility model relates to a hat beam template supporting component, it includes vertical and relative the setting in the template of strutting of hat beam both sides, the one side of strutting the template and keeping away from hat the roof beam has a plurality of stakes along the length direction interval and the sliding connection who struts the template, but the stake is followed in top-down slip nailing and is gone into in the earthwork foundation ditch, but the one side interval of strutting the template and keeping away from hat the roof beam is provided with the outer support piece of multiunit, outer support piece one end and the template rigid coupling of strutting, the ground butt of the other end and earthwork foundation ditch bottom, two it is provided with interior support piece to strut the inboard level of template, interior support piece top is tightly between two template of strutting. In this application, outer support piece, interior support piece and the stake of nailing cooperate to support the template fixedly, can be better carry out the outrigger and fix to the hat roof beam template, take place crooked when preventing that the hat roof beam from pouring, and the installation need not to carry out ligature many times or steel nail is fixed, and it is all comparatively convenient to install and demolish, has improved the efficiency of construction.

Description

Crown beam formwork support assembly

Technical Field

The application relates to the field of supporting assemblies for building construction, in particular to a crown beam formwork supporting assembly.

Background

The crown beam is also called a capping beam and a cap beam, and is a beam supported by reinforced concrete or a small amount of concrete arranged at the top of the bent frame pile pier for supporting, distributing and transmitting the load of an upper structure. The construction process of the crown beam mainly comprises the following steps: excavating earthwork and erecting a pile foundation → binding a crown beam reinforcement → erecting a formwork (a crown beam formwork) → pouring concrete → maintaining by removing the formwork, wherein in the construction process, the crown beam formwork needs to be supported so as to prevent the crown beam from deviating from an initial installation position during pouring.

A chinese patent with patent application number 202020323731.0 discloses a crown beam formwork support assembly, which comprises H-shaped steel, a crown beam and a supporting formwork; the H-shaped steel is vertically placed in the cement-soil continuous wall, the H-shaped steel is bundled with a crown beam, supporting templates are arranged on two sides of the crown beam and consist of wood-plastic templates, reinforced steel pipes and supporting piles, the outer sides of the wood-plastic templates are fixed through the reinforced steel pipes, and the other ends of the reinforced steel pipes are fixed with the side edges of the cement-soil continuous wall through the supporting piles; the supporting templates in the crown beam template supporting assembly are symmetrically arranged on the left side and the right side of the crown beam, and can stably support the crown beam.

In view of the above-mentioned related technologies, the inventor found that in an actual construction process, when the crown beam formwork support assembly supports a crown beam, multiple binding fixation or steel nail fixation is actually required among a wood-plastic formwork, a reinforced steel pipe and a support pile, and after the construction is completed, the formwork is difficult to remove, which affects later-stage work and wastes time and labor.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the construction efficiency is influenced by being difficult to remove the crown beam formwork after the construction is completed, the application provides a crown beam formwork support assembly.

The application provides a crown beam template supporting component adopts following technical scheme:

the utility model provides a hat roof beam template supporting component, includes vertical and relative the support template that sets up in hat roof beam both sides, one side of keeping away from hat roof beam of support template has a plurality of stakes along the length direction interval and the sliding connection who struts the template, but in the stake top-down sliding nailing earthwork foundation ditch, one side of keeping away from hat roof beam of support template is provided with multiunit outer support piece along the length direction interval of strutting the template, outer support piece one end and the rigid coupling of support template, the ground butt of the other end and earthwork foundation ditch bottom, two the inboard level of support template is provided with interior support piece, interior support piece top is tightly between two support templates.

By adopting the technical scheme, the supporting templates are closely arranged at two sides of the crown beam template, the outer supporting pieces, the inner supporting pieces and the driven piles vertically driven into the earthwork foundation pit are matched, so that the supporting templates can be kept in a vertical state and can be well supported, the crown beam template can be stably supported and fixed, the crown beam template is prevented from being inclined in the process of pouring the crown beam, the supporting component does not need to be bound for many times or fixed by steel nails in the installation process, and the installation is more convenient; after the construction is completed, the pile is upwards pulled out and nailed, and the supporting template is outwards pushed, so that the inner supporting piece can be separated from the supporting template, and then a worker can conveniently detach the supporting template from the crown beam template and withdraw the supporting component, the detaching process is convenient, and the construction efficiency is improved.

Optionally, one side of the supporting template far away from the crown beam is vertically provided with a plurality of mounting cylinders at intervals along the length direction of the supporting template, the outer wall of each mounting cylinder is fixedly connected with the supporting template, vertical sliding holes are formed in the mounting cylinders in a penetrating mode, the driven piles are connected in the sliding holes in a sliding mode, and the outer wall of each driven pile is abutted to the inner wall of each mounting cylinder.

Through adopting above-mentioned technical scheme, an installation section of thick bamboo can carry on spacingly to nailing stake on the circumferential direction, need not to carry out ligature or steel nail fixed can install the nailing stake on strutting the template to the nailing stake, provides comparatively convenient and stable installation basis for the nailing stake, makes things convenient for the staff to install the nailing stake and with it in the earthwork foundation ditch.

Optionally, the outer support piece includes support seat, outer bracing piece and lower stabilizer blade, go up the support seat rigid coupling on strutting the template, the stabilizer blade is placed on the subaerial of earthwork foundation ditch bottom down, outer bracing piece upper end is connected with last support seat, lower extreme and lower stabilizer blade rigid coupling, outer bracing piece length is adjustable.

By adopting the technical scheme, in the process of supporting the crown beam template, the lower support legs can be conveniently and adaptively installed on the earthwork foundation pit by adjusting the length of the outer support rods, so that the outer support members support the supporting template from outside to inside; after the construction is finished, the supporting template is folded, the outer supporting piece can be conveniently taken away from the earthwork foundation pit, and the supporting assembly is more convenient to disassemble.

Optionally, the outer support rod comprises an outer support sleeve and a sliding screw rod inserted into the outer support sleeve along the axial direction, an opening of one end of the outer support sleeve faces downwards, the other end of the outer support sleeve is hinged to the upper support base, a threaded pipe is rotatably connected to the opening of the outer support sleeve, the sliding screw rod is connected into the threaded pipe in a threaded fit mode, and one end, far away from the outer support sleeve, of the sliding screw rod is fixedly connected with the lower support leg.

Through adopting above-mentioned technical scheme, adjust the rotation direction of rotating the screwed pipe, the stabilizer blade is close to or keeps away from outer support sleeve under the steerable lead screw that slides drives, realizes the regulation of outer bracing piece length, and accommodation process is comparatively convenient, is favorable to improving the efficiency of construction.

Optionally, a rotating handle is convexly arranged on the threaded pipe along the radial direction of the threaded pipe.

Through adopting above-mentioned technical scheme, rotate the handle and adjust the force application point that the screwed pipe provided the gripping of changing for the staff, the staff rotates handle and adjusts bracing piece length more laborsaving.

Optionally, a plurality of groups of symmetrical jacking grooves are formed in the upper portions of the two supporting templates between the supporting templates, the inner supporting piece comprises an inner supporting rod and jacking blocks fixedly connected to two ends of the inner supporting rod, the length of the inner supporting rod is adjustable, and the jacking blocks are inserted into the jacking grooves in a matching manner.

Through adopting above-mentioned technical scheme, support rod length in adjusting can support the piece top tightly and install between two supporting templates to better adapt to the different width of crown beam in the construction, support piece's location in the cooperation of tight piece in top and the tight groove in top can be realized, support piece in making things convenient for the staff to install.

Optionally, the inner support rod includes an inner support sleeve and a telescopic rod axially inserted into the inner support sleeve, one end of the inner support sleeve, which is far away from the telescopic rod, is fixedly connected to one of the tightening blocks, the telescopic rod is slidably connected to the inner support sleeve, and one end of the telescopic rod, which is far away from the inner support sleeve, is fixedly connected to the other tightening block; the locking ring is sleeved at the opening of the inner support sleeve, a locking opening is formed in the outer wall of the locking ring and is parallel to the axial direction of the inner support sleeve, two sides of the locking opening of the locking ring protrude outwards integrally along the radial direction of the inner support sleeve and are provided with two furling edges oppositely, and a furling piece used for tightening the two furling edges is arranged on each furling edge.

By adopting the technical scheme, the telescopic rod can enter or extend out of the inner support sleeve from the opening of the inner support sleeve, so that the length of the inner support rod can be adjusted; when two tight piece in the tight inslot in the top of propping on strutting the template of top all pegging graft, the control is drawn in the piece and can be controlled to tighten up and draw in the edge, and then draws in the locking opening in for interior support sleeve exerts circumference's pressure to the telescopic link, compresses tightly the telescopic link fixedly, and better from inside to outside carries out the top to strutting the template tightly, and then comparatively stable carries out the adaptation to crown beam and crown beam template and supports.

Optionally, the furling member includes a furling pin shaft and a furling handle, two opposite through holes are formed through the middle of the two furling edges, the furling pin shaft includes a pin shaft head portion and a pin shaft rod portion, the pin shaft head portion abuts against one of the furling edges, the pin shaft rod portion penetrates through the through holes, and the end portion of the rod portion is hinged to the furling handle.

Through adopting above-mentioned technical scheme, adjust the handle can be comparatively convenient drive tighten up the round pin axle and tighten up and draw in the edge in, realize compressing tightly fixedly to the telescopic link, it is comparatively convenient to operate.

Optionally, a reinforcing plate is fixedly connected to one side of the supporting template, which is far away from the crown beam.

Through adopting above-mentioned technical scheme, the reinforcing plate can be consolidated supporting the template, strengthens supporting component's support intensity, better supports crown beam and crown beam template.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the inner supporting piece, the outer supporting piece and the nailed piles are matched, so that the supporting template can be kept in a vertical state and supported, and further, the crown beam and the crown beam template can be stably supported and fixed well;

2. the nailing pile can be limited in the circumferential direction by arranging the mounting cylinder, and can be mounted on the supporting template without binding or fixing the nailing pile by steel nails, so that workers can mount or dismount the nailing pile conveniently;

3. by arranging the outer support sleeve, the threaded pipe and the sliding screw rod, the length of the outer support rod can be conveniently adjusted, and the ground actual condition of the earthwork foundation pit is adapted;

4. support sleeve, telescopic link, locking ring and draw in the piece in through setting up, support piece in the realization that can be comparatively convenient makes things convenient for staff's installation in the regulation of internal support pole length, and on the other hand can be better adapt to the different width of crown beam in the construction, improves supporting component's adaptability.

Drawings

FIG. 1 is a schematic view of the overall structure of an embodiment of the present application supported on both sides of a crown beam and a crown beam form;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

fig. 3 is a schematic view of an exploded structure for illustrating the connection relationship between the inner supporting member and the supporting formwork;

fig. 4 is a schematic view of the overall structure of the inner support.

Reference numerals: 1. a crown beam; 2. a crown beam template; 3. supporting a template; 31. mounting the cylinder; 32. a reinforcing plate; 33. tightly pushing the groove; 4. nailing into a pile; 5. an outer support; 51. an upper support base; 52. an outer support bar; 521. an outer support sleeve; 522. a sliding screw rod; 523. a threaded pipe; 524. rotating the handle; 53. a lower leg; 6. an inner support; 61. a jacking block; 62. an inner support bar; 621. an inner support sleeve; 622. a telescopic rod; 623. locking a ring; 6231. locking the opening; 624. collecting the edges; 625. a furling piece; 6251. tightening the pin shaft; 6252. the handle is tightened.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a crown beam formwork support assembly.

Referring to fig. 1, the crown beam template supporting assembly comprises supporting templates 3 which are vertically and oppositely arranged on two sides of a crown beam 1, one side, close to the crown beam 1, of each supporting template 3 is attached to a crown beam template 2, the length distribution direction of each supporting template 3 is consistent with the extending direction of the crown beam 1, one side, far away from the crown beam 1, of each supporting template 3 is provided with a plurality of nailing piles 4 at intervals along the length direction of each supporting template 3 in a sliding connection mode, and the nailing piles 4 can be nailed into an earthwork foundation pit in a sliding mode from top to bottom; a plurality of groups of outer supporting pieces 5 are further arranged on one side, away from the crown beam 1, of the supporting template 3 at intervals along the length direction of the supporting template 3, one end of each group of outer supporting pieces 5 is fixedly connected with the supporting template 3, and the other end of each group of outer supporting pieces 5 is abutted to the ground at the bottom of the earthwork foundation pit; an inner support member 6 is horizontally arranged between the two opposite supporting templates 3, two ends of the inner support member 6 are respectively abutted against the two supporting templates 3, namely the inner support member 6 is tightly pressed between the two supporting templates 3.

The supporting template 3 is tightly attached to the crown beam template 2 on two sides of the crown beam 1, the outer supporting piece 5 supports the supporting template 3 from the outer side of the crown beam 1 to the inner side of the crown beam 1, the inner supporting piece 6 supports the supporting template 3 from the inner side of the crown beam 1 to the outer side of the crown beam 1, the outer supporting piece 5 is matched with the inner supporting piece 6, the supporting template 3 can be supported in the horizontal direction, the supporting template 3 can be kept in a vertical state well, on the basis, a worker can conveniently vertically nail the nailing pile 4 into a foundation pit in the earth direction, the supporting template 3 is fixed in the vertical direction, the crown beam 1 and the crown beam template 2 are stably supported well, and the crown beam template 2 is placed to be inclined in the process of pouring the crown beam 1.

The supporting formwork 3 is provided with a plurality of reinforcing plates 32 at intervals from top to bottom on one side far away from the crown beam 1, the reinforcing plates 32 are consistent in specification and are parallel to each other in the vertical direction, the reinforcing plates 32 and the supporting formwork 3 are both made of wood plates and fixedly connected through steel nails or screws, connection is firm, and the overall strength of the supporting assembly is enhanced.

A plurality of installation cylinders 31 for installing driven piles 4 are vertically arranged on the reinforcing plate 32 at intervals along the length direction of the supporting template 3, the outer wall of each installation cylinder 31 is fixedly connected with the reinforcing plate 32, vertical sliding holes are formed in the installation cylinders 31 in a penetrating mode, each driven pile 4 comprises a pile head and a pile rod, the cross-sectional area of each pile head is larger than that of each pile rod, the size of each sliding hole is matched with that of each pile rod of each driven pile 4, the length of each pile rod of each driven pile 4 is larger than the depth of each installation cylinder 31, each driven pile 4 is connected in each sliding hole in a sliding mode, and the outer wall of each driven pile 4 is abutted against the inner wall of each installation cylinder 31; when nailing 4 when installing in installation section of thick bamboo 31, installation section of thick bamboo 31 can carry on spacingly to nailing 4 on the circumferential direction, need not to carry out ligature or steel nail fixed can install nailing 4 on strutting template 3 to nailing 4, the staff of being convenient for will nail into 4 nailing in the earthwork foundation ditch, after the construction, upwards pull out nailing 4, the staff can be comparatively convenient take out nailing 4 from installation section of thick bamboo 31, demolish strutting template 3.

Referring to fig. 1 and 2, the outer supporting member 5 includes an upper supporting base 51, an outer supporting rod 52 and a lower supporting leg 53, each set of the outer supporting member 5 is located between two adjacent installation cylinders 31, the upper supporting base 51 is fixedly connected to the reinforcing plate 32 at the middle part of the supporting template 3, the lower supporting leg 53 is placed on the ground at the bottom of the earthwork foundation pit, the upper end of the outer supporting rod 52 is fixedly connected to the upper supporting base 51, the lower end is fixedly connected to the lower supporting leg 53, and the length of the outer supporting rod 52 is adjustable.

The outer support rod 52 comprises an outer support sleeve 521 and a sliding screw rod 522 inserted into the outer support sleeve 521 along the axial direction, one end of the outer support sleeve 521 is open, the other end of the outer support sleeve 521 is closed, the open end of the outer support sleeve 521 faces downwards, the closed end of the outer support sleeve 521 is hinged to the upper support base 51, the sliding screw rod 522 is located at the lower part of the outer support sleeve 521, the upper end of the sliding screw rod 522 is located in the outer support sleeve 521, the lower end of the sliding screw rod 522 extends out of the outer support sleeve 521 from the opening and is fixedly connected with the lower support 53, a threaded pipe 523 is rotatably connected to the open position of the outer support sleeve, a bidirectional thread is arranged in the threaded pipe 523, the threaded pipe 523 is sleeved and connected to the sliding screw rod 522 in a thread fit manner, and a rotating handle 524 convenient for a worker to rotate the threaded pipe 523 protrudes outwards from the outer wall of the threaded pipe 523; the sliding screw rod 522 can be conveniently controlled to drive the lower support leg 53 to be close to or far away from the outer support sleeve 521 by rotating the rotating handle 524, and the length of the outer support rod 52 is adjusted, so that the lower support leg 53 can be placed on the ground at the bottom of the earthwork foundation pit, the actual situation of the ground of the earthwork foundation pit can be conveniently adapted, and the supporting template 3 is always in a vertical state.

Referring to fig. 3 and 4, the inner supporting member 6 is tightly supported between two opposite supporting templates 3, a plurality of groups of symmetrical supporting grooves 33 are formed in the upper portions of the two opposite supporting templates 3 between the supporting templates 3, the inner supporting member 6 comprises an inner supporting rod 62 and a supporting block 61 which is relatively and fixedly connected to the end portions of two ends of the inner supporting rod 62, the inner supporting rod 62 is transversely arranged between the two opposite supporting templates 3, the length of the inner supporting rod 62 is adjustable, and the size and the shape of the supporting block 61 are matched with the supporting grooves 33 to be inserted into the supporting grooves 33 in a matching mode.

The inner support rod 62 comprises an inner support sleeve 621 and a telescopic rod 622 axially inserted on the inner support sleeve 621, one end of the inner support sleeve 621 is open, the other end is closed, the closed end of the inner support sleeve 621 is fixedly connected with the jacking block 61, the telescopic rod 622 is slidably connected to the inner support sleeve 621, one end of the telescopic rod 622 is located in the inner support sleeve 621, the other end extends out of the opening of the inner support sleeve 621 and is fixedly connected with the other jacking block 61, a convex edge for preventing the telescopic rod 622 from slipping off is inwards convexly arranged at the opening position of the inner support sleeve 621, an anti-slipping block is fixedly connected to the end part of the telescopic rod 622 located in the inner support sleeve 621, the cross-sectional area of the anti-slipping block is larger than that of the telescopic rod 622, when the telescopic rod 622 is transversely installed on the inner support sleeve 621, the cross-sectional area of the anti-slipping block in the vertical direction is larger than that of the convex edge, and the telescopic rod 622 can be effectively prevented from slipping off the inner support sleeve 621, making the telescoping rod 622 and inner support sleeve 621 more connective. Referring to fig. 4, a linear limiting groove is formed in the telescopic rod 622 inward along the radial direction of the telescopic rod 622, the extending direction of the limiting groove is consistent with the axial direction of the telescopic rod 622, that is, the extending direction of the limiting groove is consistent with the extending direction of the telescopic rod 622, a limiting block is arranged on the convex edge and protrudes inward along the radial direction of the telescopic rod 622 towards the position of the limiting groove, and when the telescopic rod 622 slides and extends in the inner support sleeve 621, the limiting block slides linearly in the limiting groove of the telescopic rod 622; stopper and spacing groove cooperation for the staff can be comparatively convenient control telescopic link 622 the straight line flexible, prevent that it from carrying out circular motion in supporting the cover 621 including, make tight piece 61 in top can be accurate and comparatively convenient stretch into the tight groove 33 in top and strut template 3 and peg graft.

In order to lock and fix the inner support sleeve 621 and the telescopic rod 622 which are inserted into the supporting template 3, a locking ring 623 is sleeved at an opening of the inner support sleeve 621, the locking ring 623 is an unclosed circular ring, a locking opening 6231 is formed in the outer wall of the locking ring 623, the locking opening 6231 is formed in a direction parallel to the axis of the inner support sleeve 621, the locking ring 623 integrally protrudes outwards along the radial direction of the inner support sleeve 621 at two sides of the locking opening 6231 and is provided with two furling edges 624 oppositely, and a furling piece 625 for tightening the two furling edges 624 is arranged on the furling edge 624; when the gathering member 625 gathers the two gathering edges 624, the locking openings 6231 are gathered.

Referring to fig. 3 and 4, two opposite through holes are formed in the middle of the two opposite furling edges 624 in a penetrating manner, the furling member 625 includes a furling pin 6251 and a furling handle 6252 which penetrate the two through holes, the furling pin 6251 includes a pin head and a pin rod which are integrally connected, the pin head and the pin rod are both cylindrical, the pin head is larger than the pin rod, the pin head abuts against the outer side of one of the furling edges 624, and one end of the pin rod, which is far away from the pin head, is hinged to the furling handle 6252; adjust to rotate and tighten up handle 6252 and can be comparatively convenient drive tighten up round pin 6251 and tighten up and draw in along 624, and then tighten up locking opening 6231, realize compressing tightly fixedly to telescopic link 622, and then realize interior support piece 6 tight to the top of strutting template 3 from inside to outside, it is comparatively convenient that the operation is got up.

The implementation principle of the crown beam formwork support assembly in the embodiment of the application is as follows: before the crown beam 1 is poured, the supporting assembly is installed in an earthwork foundation pit, firstly, a supporting template 3 is vertically supported by being attached to a crown beam template 2, an outer supporting rod 52 is adjusted, the supporting assembly is tightly jacked from the outer side of the crown beam template 2, so that a lower supporting leg 53 is supported on the ground at the bottom of the earthwork foundation pit, then, an inner supporting rod 62 is adjusted, the supporting assembly is tightly jacked from the inner side of the crown beam template 2, the crown beam template 2 is in a vertical state, a nailing pile 4 on an installation cylinder 31 is nailed into the earthwork foundation pit, the crown beam template 2 is fixed, multiple times of binding or steel nail fixing are not needed in the installation process, and the installation is convenient; after the construction is completed, the nailing pile 4 is pulled out, the supporting template 3 is pushed outwards, the supporting template 3 can be separated from the crown beam template 2, the inner supporting piece 6 is separated from the supporting template 3, then the supporting template 3 can be conveniently detached from the crown beam template 2 by workers, the supporting component is retracted for recycling next time, the nailing pile and the pile pulling are simple, the detaching process is convenient, and the construction efficiency is improved well.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a crown beam template supporting component, includes vertical and relative support template (3) that set up in crown beam (1) both sides, its characterized in that: the supporting formwork (3) is far away from one side of the crown beam (1) and is connected with a plurality of nailing piles (4) at intervals along the length direction of the supporting formwork (3) in a sliding mode, the nailing piles (4) can be nailed into an earthwork foundation pit in a sliding mode from top to bottom, one side of the supporting formwork (3) far away from the crown beam (1) is provided with a plurality of groups of outer supporting pieces (5) at intervals along the length direction of the supporting formwork (3), one end of each outer supporting piece (5) is fixedly connected with the supporting formwork (3), the other end of each outer supporting piece is abutted to the ground at the bottom of the earthwork foundation pit, the inner side of the supporting formwork (3) is horizontally provided with an inner supporting piece (6), and the inner supporting piece (6) is tightly abutted to the two supporting formworks (3).

2. The crown beam formwork support assembly of claim 1, wherein: support one side that template (3) kept away from crown beam (1) and vertically be provided with a plurality of installation section of thick bamboo (31) along the length direction interval of supporting template (3), installation section of thick bamboo (31) outer wall and supporting template (3) rigid coupling, vertical sliding hole has been seted up in inside running through of installation section of thick bamboo (31), driving in stake (4) sliding connection is in the sliding hole, just driving in stake (4) outer wall and installation section of thick bamboo (31) inner wall butt.

3. The crown beam formwork support assembly of claim 2, wherein: outer support piece (5) are including last supporting pedestal (51), outer bracing piece (52) and lower supporting leg (53), go up supporting pedestal (51) rigid coupling on strutting template (3), place in subaerial in earthwork foundation ditch bottom lower supporting leg (53), outer bracing piece (52) upper end is connected with last supporting pedestal (51), lower extreme and lower supporting leg (53) rigid coupling, just outer bracing piece (52) length-adjustable.

4. The crown beam formwork support assembly of claim 3, wherein: outer bracing piece (52) include outer support sleeve (521) and insert slip lead screw (522) of locating in outer support sleeve (521) along the axial, outer support sleeve (521) one end opening and opening are down, outer support sleeve (521) other end is articulated with last supporting seat (51), outer support sleeve (521) opening part rotates and is connected with screwed pipe (523), slip lead screw (522) screw-thread fit connects in screwed pipe (523), the one end and lower stabilizer blade (53) rigid coupling that outer support sleeve (521) was kept away from in slip lead screw (522).

5. The crown beam formwork support assembly of claim 4, wherein: and a rotating handle (524) is convexly arranged on the threaded pipe (523) along the radial direction thereof.

6. The crown beam formwork support assembly of claim 1, wherein: the upper parts of the two supporting templates (3) are positioned between the supporting templates (3) and are provided with a plurality of groups of symmetrical jacking grooves (33), the inner supporting piece (6) comprises an inner supporting rod (62) and jacking blocks (61) fixedly connected to two ends of the inner supporting rod (62), the length of the inner supporting rod (62) is adjustable, and the jacking blocks (61) are matched and inserted into the jacking grooves (33).

7. The crown beam formwork support assembly of claim 6, wherein: the inner support rod (62) comprises an inner support sleeve (621) and a telescopic rod (622) inserted on the inner support sleeve (621) along the axial direction, one end, far away from the telescopic rod (622), of the inner support sleeve (621) is fixedly connected with one of the jacking blocks (61), the telescopic rod (622) is connected to the inner support sleeve (621) in a sliding mode, and one end, far away from the inner support sleeve (621), of the telescopic rod (622) is fixedly connected with the other jacking block (61); the opening of the inner support sleeve (621) is sleeved with a locking ring (623), the outer wall of the locking ring (623) is parallel to the axial direction of the inner support sleeve (621) and is provided with a locking opening (6231), the locking ring (623) protrudes outwards along the radial direction of the inner support sleeve (621) at two sides of the locking opening (6231) and is provided with two folding edges (624) oppositely, and the folding edges (624) are provided with folding pieces (625) for tightening the two folding edges (624).

8. The crown beam formwork support assembly of claim 7, wherein: the drawing part (625) comprises a drawing pin shaft (6251) and a drawing handle (6252), two opposite through holes are formed in the middle of the drawing edge (624) in a penetrating mode, the drawing pin shaft (6251) comprises a pin shaft head part and a pin shaft rod part, the pin shaft head part is abutted to one of the drawing edges (624), the pin shaft rod part penetrates through the through holes, and the end part of the rod part is hinged to the drawing handle (6252).

9. The crown beam form panel support assembly of claim 1, wherein: and a reinforcing plate (32) is fixedly connected to one side of the supporting template (3) far away from the crown beam (1).