CN218090947U

CN218090947U - Template system is pour to transfer beam

Info

Publication number: CN218090947U
Application number: CN202221619828.1U
Authority: CN
Inventors: 王帅; 戢杰; 孟欣; 李力
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-12-20
Anticipated expiration: 2032-06-27

Abstract

The utility model relates to a template system is pour to conversion roof beam has solved the comparatively loaded down with trivial details technical problem of the reinforced structure installation process of conversion roof beam pouring template among the prior art. The utility model discloses a bottom template, side form board, upper strata bottom template, reinforcement assembly, counter-pull anchor strut and bracing piece. Two side form parallel correspondence sets up, the side form is located the both sides of bottom form, upper strata bottom form perpendicular to side form, two sets of reinforcement assembly set up the left and right sides at two side forms respectively, reinforcement assembly includes a plurality of briquettings and two locating plates, horizontal location face and vertical locating surface have on the locating plate, the upper and lower both ends of every briquetting are upwards slide assembly in the front and back with the locating plate that is located both sides about respectively, side form and briquetting are passed to the both ends of pull anchor strut, equal threaded connection in both ends has lock nut about to pull anchor strut, lock nut compresses tightly briquetting and locating plate on the lateral wall of side form, the bracing piece is equipped with a plurality ofly, the bracing piece is used for supporting upper strata bottom form.

Description

Conversion beam pouring template system

Technical Field

The utility model relates to a conversion roof beam construction technical field especially relates to a conversion roof beam pours template system.

Background

The upper part and the lower part of a certain floor of the building are different in using function due to the plane, the upper part and the lower part of the floor adopt different structural types, and structural conversion is carried out through the floor, so the floor is called a structural conversion layer. The application of structure conversion layer in the building work process is very extensive, for example because the subway lower floor needs the large tracts of land space of traveling, consequently when carrying out the building construction on subway upper strata, can't set up the basis that is used for the hoist and mount reinforcing bar, wooden stupefied, concrete, the tower crane of the raw and other materials of construction of steel pipe for the construction subaerial in subway bottom lower floor, because subway upper cover structure roof is not enough to bear the tower crane load, consequently need set up the conversion roof beam between the existing structure post of existing structure roof top, cast out the tower through the conversion roof beam and hang the conversion roof beam basis, be used for bearing the tower crane weight and pass its load to existing structure post on through the conversion roof beam.

Template is pour to transfer beam among the prior art, it is stupefied as time to use many flitches along template surface vertical arrangement often, many times hug closely flitch surface transverse arrangement's circular steel tube stupefied as main, use the multiunit to the stay bolt with the circular steel tube lock pressure on the surface of flitch, thereby make flitch and circular steel tube can the closing die board, consolidate the template, prevent to pour the in-process and take place to rise the mould, the quality is pour in the influence, but this kind of reinforcement mode is when using stay bolt to compress tightly flitch and circular steel tube, because flitch and circular steel tube are the solitary part that does not have the assembly relation, the in-process of putting flitch and circular steel tube often needs artifical hand flitch and circular steel tube to install, the installation is comparatively loaded down with trivial details, need consume more manual work, and the man-hour that consumes is longer.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to provide a template system is pour to transfer beam has solved the comparatively loaded down with trivial details technical problem of the reinforced structure installation process that the template was pour to the transfer beam among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: a conversion beam pouring template system comprises a bottom template, side templates, an upper bottom template, a reinforcing assembly, a counter-pull reinforcing rod and supporting rods. The bottom template is used for being placed on the upper surface of a top plate of the upper cover structure of the subway; the two side templates are arranged, the length direction defining the transfer beam is the front-back direction, the width direction is the left-right direction, the two side templates are parallel and correspondingly arranged along the left-right direction, the side templates are positioned on two sides of the bottom template, the two side templates are tightly attached to two opposite side walls of the bottom template, a plurality of first through holes which are communicated along the left-right direction are formed in the side templates, the first through holes are arranged at equal intervals along the front-back direction, the bottom surfaces of the side templates are used for being tightly attached to the upper surface of a top plate of a subway upper cover structure, and the two side templates are used for enclosing a transfer beam pouring cavity with the top plate of the subway upper cover structure; the upper-layer bottom template is vertical to the side templates, the top surface of the upper-layer bottom template is flush with the top surfaces of the side templates and is tightly attached to the outer side walls of the side templates, and the upper-layer bottom template is used for forming the bottom surface of a floor slab pouring cavity above the transfer beam; the two groups of reinforcing assemblies are respectively arranged on the left side and the right side of the two side templates, each reinforcing assembly comprises a plurality of pressing blocks and two positioning plates extending along the front and back directions, the two positioning plates are arranged on the outer side walls of the side templates at intervals up and down, the positioning plates are provided with a horizontal positioning surface and a vertical positioning surface which are perpendicular to each other, the horizontal positioning surface of the positioning plate below is used for being attached to the upper surface of a top plate of a subway upper cover structure, the vertical positioning surface of the positioning plate below is attached to the outer side surfaces of the side templates, the horizontal positioning surface of the positioning plate above is attached to the lower surface of the bottom template above, and the vertical positioning surface of the positioning plate above is attached to the outer side surfaces of the side templates; the upper end and the lower end of each pressing block are respectively assembled with the positioning plates positioned on the upper side and the lower side in a sliding mode in the front-back direction and are in anti-falling fit in the left-right direction, the pressing blocks are arranged at equal intervals in the front-back direction of the positioning plates, each pressing block is further provided with a second through hole penetrating through the pressing blocks in the left-right direction, and the second through holes are in one-to-one correspondence and coaxial with the first through holes; the counter-pull reinforcing rods correspond to the first through holes one by one, external threads are arranged at the left ends and the right ends of the counter-pull reinforcing rods, the same counter-pull reinforcing rods simultaneously penetrate through the corresponding first through holes and second through holes along the left direction and the right direction, locking nuts are in threaded connection with the left ends and the right ends of the counter-pull reinforcing rods, and the locking nuts are used for pressing the pressing blocks and the positioning plate on the outer side wall of the side template; the bracing piece is equipped with a plurality ofly, and bracing piece one end is connected on the upper surface of subway upper cover structure roof, and the other end is used for supporting upper floor die plate.

The beneficial effects of the above technical scheme are: the positioning plate and the pressing blocks are connected in a sliding mode to form a reinforcing assembly for supporting the side templates, the pressing blocks and the positioning plate are matched in a left-right anti-falling mode, the reinforcing assembly formed by the pressing blocks and the two positioning plates can be of an integral structure, the reinforcing assembly is abutted to the outer side wall of the side templates after being assembled, each pair of pulling reinforcing rods penetrates through corresponding first through holes and second through holes in the side templates and the pressing blocks, the reinforcing assembly can be pressed on the outer side walls of the two side templates by screwing locking nuts, the two side templates are subjected to pressing force towards the middle, and the phenomenon that mold expansion occurs in the process of concrete pouring and pouring quality is affected is prevented; compared with the reinforcing mode of using the independent battens and the round steel tubes, the integral reinforcing component effectively avoids the reinforcing mode of manually holding and placing the battens and the round steel tubes, and the reinforcing of the side template is more convenient; the plurality of pressing blocks can slide along the rod length direction of the positioning plate, the number and the placing positions of the pressing blocks can be reasonably adjusted as required, and the second through holes can be kept coaxial with the first through holes on the side templates by moving the pressing blocks; the horizontal positioning surface and the vertical positioning surface on the positioning plate can ensure that the side template is perpendicular to the upper surface of the top plate of the subway upper cover structure, and simultaneously ensure that the side template is perpendicular to the upper bottom template, so that the requirement of perpendicularity is met between the side walls of the poured transfer beam.

Furthermore, a T-shaped insertion groove penetrating through the positioning plate along the front-back direction is formed in the positioning plate, the notch of the T-shaped insertion groove faces back to the corresponding side template, the notch of the T-shaped insertion groove extends to the corresponding end face of the positioning plate, and T-shaped insertion connectors in sliding fit with the T-shaped insertion groove are arranged at the upper end and the lower end of the pressing block respectively.

The beneficial effects of the above technical scheme are: the T-shaped insertion groove is matched with the T-shaped insertion head in an insertion mode, the T-shaped insertion groove can limit the T-shaped insertion head, and the pressing block can be prevented from being separated from the positioning plate along the left and right directions while sliding on the positioning plate.

Further, the briquetting includes the U-shaped board, and the U-shaped mouth of U-shaped board is towards the side form board that corresponds, and the U-shaped board includes the reinforcing plate section and connects the slide plate section at reinforcing plate section upper and lower both ends, the second through-hole sets up on the reinforcing plate section, T shape bayonet joint is connected respectively on the slide plate section that corresponds.

The beneficial effects of the above technical scheme are: the reinforcing plate section of the U-shaped plate and the side template are provided with gaps, the wood beam can be inserted into the gaps to reinforce the supporting of the reinforcing assembly on the side template, meanwhile, the reinforcing plate section is prevented from directly contacting the side template, and the reinforcing plate section is prevented from directly extruding the side template under the pressing force of the locking nut and damaging the side template.

Furthermore, a plurality of reinforcing battens extending along the front-back direction are arranged between the reinforcing plate sections and the corresponding side templates, and the reinforcing battens are arranged at intervals in the up-down direction.

The beneficial effects of the above technical scheme are: the reinforcing battens are arranged between the reinforcing plate sections and the side formworks and are used for reinforcing the supporting of the reinforcing assemblies on the side formworks, so that the plate surfaces of the side formworks are more uniform in supporting force distribution, and the situation that the parts of the side formworks which are not supported are slightly deformed in the pouring process to influence the pouring quality is prevented.

Furthermore, the side templates and the upper bottom template are assembled together in an inserting mode and are matched in an anti-falling mode in the left-right direction, one of the side templates and the upper bottom template is provided with a dovetail groove, and the other side template is provided with a dovetail plug matched with the dovetail groove.

The beneficial effects of the above technical scheme are: the dovetail plug and the dovetail groove enable the side templates and the upper bottom template to be tightly connected, so that the upper bottom template is limited to move in the vertical and horizontal directions, and the situation that slurry leakage is caused due to the fact that the upper bottom template is displaced in the concrete pouring process to affect the pouring quality is prevented.

Furthermore, a support frame is arranged between the support rod and the upper bottom template, the support rod comprises a rod body and a top support arranged at the top of the rod body, the length of the rod body is adjustable, the support frame comprises a plurality of transverse battens extending in the front-back direction and a plurality of longitudinal battens extending in the left-right direction, the plurality of transverse battens are distributed at equal intervals in the left-right direction, and the plurality of longitudinal battens are distributed at equal intervals in the front-back direction; the same longitudinal battens are placed in the jacking supports on the support rods arranged side by side in the left-right direction, a plurality of U-shaped grooves are formed in the longitudinal battens, a plurality of openings face upwards, the U-shaped grooves penetrate through the longitudinal battens in the front-back direction, the U-shaped grooves are distributed at equal intervals in the left-right direction, the same transverse battens are inserted into the corresponding U-shaped grooves in the longitudinal battens, and the upper surfaces of the transverse battens are abutted to the upper bottom template.

The beneficial effects of the above technical scheme are: the supporting frame is arranged between the supporting rod and the upper bottom formwork and is used for reinforcing the support of the upper bottom formwork, the plurality of transverse battens and the plurality of longitudinal battens are spliced into the supporting frame, and the transverse battens and the longitudinal battens are spliced together to avoid the problem that the arrangement process of the battens is too complicated due to the fact that the plurality of independent transverse battens and the longitudinal battens are used for supporting the upper bottom formwork; the adjustable body of rod length of bracing piece is in order to facilitate the support of installing the bracing piece in the below of upper die plate and the length of reasonable adjustment bracing piece has realized the bed die plate in upper strata, guarantees the levelness of upper strata bed die plate.

Drawings

Fig. 1 is the utility model discloses a template system is pour to conversion roof beam's structural schematic.

In the figure: 1. a sideform; 2. positioning a plate; 3. pressing into blocks; 4. an upper bottom template; 5. oppositely pulling the reinforcing rods; 6. locking the nut; 7. a dovetail plug; 8. a support bar; 9. transverse battens; 10. longitudinal battens; 11. a T-shaped plug-in connector; 12. jacking; 13. reinforcing the battens; 14. a bottom form.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

as shown in figure 1, the conversion beam pouring formwork system comprises a bottom formwork 14, side formworks 1, an upper bottom formwork 4, a reinforcing assembly, a counter-pull reinforcing rod 5 and a supporting rod 8. The two side formworks 1 are provided, the two side formworks 1 are parallel and correspond to each other in the left-right direction, a bottom formwork 14 is clamped between the two side formworks 1, the bottom formwork 14 is tightly attached to the upper surface of a top cover structure roof of a subway, the bottom formwork 14 is tightly attached to the inner side walls of the two side formworks 1, the bottom surfaces of the two side formworks 1 are tightly attached to the upper surface of the top cover structure roof of the subway, a row of circular first through holes are formed in the middle positions of the two side formworks 1 in the up-down direction, the first through holes are arranged at equal intervals in the front-back direction, the upper ends of the two side formworks 1 are vertically connected with an upper bottom formwork 4, the upper surfaces of the side formworks 1 are flush with the upper surface of the upper bottom formwork 4, dovetail plugs 7 are connected to the side walls, dovetail grooves are formed in the upper bottom formwork 4, and the side formworks 1 and the upper bottom formwork 4 are mutually spliced through the dovetail plugs 7.

The left side and the right side of the two side templates 1 are respectively provided with a group of reinforcing assemblies, each reinforcing assembly comprises two positioning plates 2 and a plurality of pressing blocks 3, the two positioning plates 2 are respectively positioned at the upper end and the lower end of each side template 1, the positioning plates 2 extend along the front-back direction, the cross sections of the positioning plates 2 are in right-angle L shapes, the outer side wall surfaces of the right-angle L shapes of the positioning plates 2 are respectively horizontal positioning surfaces and vertical positioning surfaces of the positioning plates, the horizontal positioning surface of the positioning plate 2 positioned at the upper end is tightly attached to the lower surface of the bottom template 4 at the upper layer, the vertical positioning surface of the positioning plate 2 positioned at the upper end is tightly attached to the outer side wall of each side template 1, the horizontal positioning surface of the positioning plate 2 positioned at the lower end is tightly attached to the top surface of the upper cover structure plate of the subway, and the vertical positioning surface of the positioning plate 2 positioned at the lower end is tightly attached to the outer side wall of each side template 1; a T-shaped inserting groove penetrating along the front and back directions is formed in the plate section where the vertical positioning surface of the positioning plate 2 is located, and the notch of the T-shaped inserting groove is back to the corresponding side template 1 and extends to the corresponding end surface of the positioning plate 2; the pressing block 3 comprises a U-shaped plate, the U-shaped opening of the U-shaped plate faces the corresponding side template 1, the U-shaped plate comprises a reinforcing plate section and sliding plate sections which are parallel to each other and connected to the upper end and the lower end of the reinforcing plate section respectively, a second through hole is formed in the middle of the reinforcing plate section, and the end portion of the sliding plate section is connected with a T-shaped plug-in connector 11. The T-shaped plug connectors 11 at the upper and lower ends of the pressing blocks 3 are respectively inserted into the T-shaped plug grooves at the upper and lower sides along the front and rear ends of the positioning plate 2.

Be equipped with a plurality ofly to drawing reinforcing rod 5, all be provided with the external screw thread at the both ends of drawing reinforcing rod 5, first through-hole on the side form 1 of the left and right sides and the second through-hole on the briquetting 3 that corresponds are passed respectively to the both ends of drawing reinforcing rod 5, the tip threaded connection that passes briquetting 3 to drawing reinforcing rod 5 has two lock nut 6, lock nut 6 is used for pushing away briquetting 3 and compresses tightly locating plate 2 on side form 1, insert between 3 briquetting 3's of briquetting and side form 1 and be equipped with many reinforcing wood directions 13 that extend along the fore-and-aft direction, many reinforcing wood directions 13 are interval arrangement on the upper and lower direction.

The supporting rod 8 comprises a rod body, a base connected below the rod body and a top support 12 connected to the upper end of the rod body, the base of the supporting rod 8 is connected to the upper surface of a top plate of the upper cover structure of the subway, the top support 12 is used for supporting a supporting frame between the upper bottom template 4 and the supporting rod 8, the supporting frame comprises a plurality of transverse battens 9 extending along the front-back direction and a plurality of longitudinal battens 10 extending along the left-right direction, the plurality of transverse battens 9 are distributed at equal intervals along the left-right direction, and the plurality of longitudinal battens 10 are distributed at equal intervals along the front-back direction; the same longitudinal battens 10 are placed in jacking supports 12 on the supporting rods 8 which are arranged side by side in the left-right direction, a plurality of U-shaped grooves with openings facing upwards and penetrating through the longitudinal battens 10 in the front-back direction are formed in the longitudinal battens 10, the U-shaped grooves are distributed at equal intervals in the left-right direction, the same transverse battens 9 are simultaneously inserted into corresponding U-shaped grooves in the longitudinal battens 10, and the upper surfaces of the transverse battens 9 are abutted against the upper bottom template 4.

When the utility model is used, the bottom template 14 is placed on the corresponding position of the upper surface of the top cover structure roof of the subway, two side templates 1 are erected between two existing structure columns on the top cover structure roof of the subway, the two side templates 1 are abutted against the outer sides of the bound supporting steel bars in the conversion beam, the two side templates 1 are mutually corresponding and parallel, the two side templates 1 are abutted against the two opposite side walls of the bottom template 14, a positioning plate 2 is placed on the upper surface of the top cover structure roof of the subway, the vertical positioning surface of the positioning plate 2 is tightly attached to the outer side wall of the side template 1, a pressing block 3 is inserted along the end part of the positioning plate 2, another positioning plate 2 is inserted outside a T-shaped inserting head 11 above the pressing block 3, the end parts of the two positioning plates 2 are kept parallel and level, then the upper and lower ends of the rest pressing blocks 3 are respectively aligned with the positioning plates 2 on the upper and lower sides and inserted into T-shaped inserting grooves on the positioning plate 2, installing a reinforcing component on the other side according to the same method, adjusting second through holes on each pressing block 3 to be in one-to-one correspondence with first through holes on the side templates 1, penetrating a counter-pull reinforcing rod 5 through the corresponding first through holes and second through holes, applying pre-pressing force to the pressing blocks 3 by using a locking nut 6, then inserting a reinforcing batten 13 between a reinforcing plate section of the pressing block 3 and the side templates 1, then screwing the locking nut 6 to enable the pressing blocks 3 and the positioning plate 2 to tightly press the side templates 1, then supporting a supporting rod 8, placing the supporting frame on the supporting rod 8, inserting the upper bottom template 4 and the side templates 1 together through dovetail grooves and dovetail plugs 7, placing the plate surface of the upper bottom template 4 on the supporting frame, then adjusting the height of the supporting rod 8 to enable the upper bottom template 4 to keep the corresponding height position and keep horizontal, namely, the whole template system is erected. And after the support is finished, concrete is poured, in order to prevent the bottom template from deforming under the action of the gravity of the concrete, autoclaved sand-lime bricks can be laid on the bottom layer of the pouring cavity, all templates are removed after the pouring is finished, and a gap exists between the transfer beam and the top plate of the subway upper cover structure, so that the load borne by the transfer beam is transmitted to the lower ground through the existing structural columns.

The utility model discloses simple structure, installation are convenient, can carry out the support that stabilizes to the template, effectively use manpower sparingly, practice thrift man-hour, have improved work efficiency.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a conversion roof beam pours template system which characterized in that includes:

the bottom template is used for being placed on the upper surface of the top plate of the subway upper cover structure;

the two side templates are arranged, the length direction defining the transfer beam is the front-back direction, the width direction defining the transfer beam is the left-right direction, the two side templates are arranged in parallel and correspondingly along the left-right direction, the side templates are positioned on two sides of the bottom template, the two side templates are tightly attached to two opposite side walls of the bottom template, a plurality of first through holes penetrating along the left-right direction are formed in the side templates, the plurality of first through holes are arranged at equal intervals along the front-back direction, the bottom surfaces of the side templates are used for being tightly attached to the upper surface of a top plate of a subway upper cover structure, and the two side templates are used for enclosing a transfer beam pouring cavity with the top plate of the subway upper cover structure;

the upper-layer bottom template is vertical to the side templates, the top surface of the upper-layer bottom template is flush with the top surfaces of the side templates and is tightly attached to the outer side walls of the side templates, and the upper-layer bottom template is used for forming the bottom surfaces of the floor slab pouring cavities above the transfer beams;

the reinforcing assemblies are arranged in two groups, the two groups of reinforcing assemblies are respectively arranged on the left side and the right side of the two side templates, each reinforcing assembly comprises a plurality of pressing blocks and two positioning plates extending along the front-back direction, the two positioning plates are arranged on the outer side walls of the side templates at intervals up and down, each positioning plate is provided with a horizontal positioning surface and a vertical positioning surface which are perpendicular to each other, the horizontal positioning surface of the positioning plate positioned below is used for being tightly attached to the upper surface of a top plate of a subway upper cover structure, the vertical positioning surface of the positioning plate positioned below is tightly attached to the outer side surface of the side template, the horizontal positioning surface of the positioning plate positioned above is tightly attached to the lower surface of the bottom template on the upper layer, and the vertical positioning surface of the positioning plate positioned above is tightly attached to the outer side surface of the side template; the upper end and the lower end of each pressing block are respectively assembled with the positioning plates positioned on the upper side and the lower side in a sliding manner in the front-back direction and are in anti-slip fit in the left-right direction, the plurality of pressing blocks are arranged at equal intervals in the front-back direction of the positioning plates, each pressing block is also provided with a second through hole penetrating in the left-right direction, and the second through holes are in one-to-one correspondence and coaxial with the first through holes;

the opposite-pull reinforcing rods correspond to the first through holes one by one, external threads are arranged at the left end and the right end of each opposite-pull reinforcing rod, the same opposite-pull reinforcing rod simultaneously penetrates through the corresponding first through holes and the corresponding second through holes along the left direction and the right direction, locking nuts are in threaded connection with the left end and the right end of each opposite-pull reinforcing rod, and the locking nuts are used for pressing the pressing blocks and the positioning plates on the outer side walls of the side templates;

the support rods are arranged, one end of each support rod is connected to the upper surface of the top plate of the subway upper cover structure, and the other end of each support rod is used for supporting the upper bottom formwork.

2. The transfer beam pouring template system as claimed in claim 1, wherein the positioning plate is provided with a T-shaped insertion groove which penetrates through the positioning plate in the front-rear direction, the notch of the T-shaped insertion groove faces away from the corresponding side template, the notch of the T-shaped insertion groove extends to the corresponding end face of the positioning plate, and the upper end and the lower end of the pressing block are respectively provided with a T-shaped insertion joint which is in sliding fit with the T-shaped insertion groove.

3. The transfer beam pouring formwork system according to claim 2, wherein the pressing block comprises a U-shaped plate, a U-shaped opening of the U-shaped plate faces to the corresponding side formwork, the U-shaped plate comprises a reinforcing plate section and sliding plate sections connected to the upper end and the lower end of the reinforcing plate section, the second through hole is formed in the reinforcing plate section, and the T-shaped plug connectors are respectively connected to the corresponding sliding plate sections.

4. The transfer beam casting formwork system according to claim 3, wherein a plurality of reinforcing battens extending in the front-rear direction are arranged between the reinforcing plate sections and the corresponding side formworks, and the reinforcing battens are arranged at intervals in the up-down direction.

5. The transfer beam pouring formwork system according to any one of claims 1 to 4, wherein the side formworks and the upper bottom formwork are assembled together in an inserted mode and matched in a left-right anti-disengaging mode, one of the side formworks and the upper bottom formwork is provided with a dovetail groove, and the other side formworks and the upper bottom formwork are provided with dovetail plugs matched with the dovetail groove.

6. The transfer beam pouring formwork system according to any one of claims 1 to 4, wherein a support frame is arranged between the support rod and the upper bottom formwork, the support rod comprises a rod body and a top support arranged at the top of the rod body, the length of the rod body is adjustable, the support frame comprises a plurality of transverse battens extending in the front-back direction and a plurality of longitudinal battens extending in the left-right direction, the plurality of transverse battens are distributed at equal intervals in the left-right direction, and the plurality of longitudinal battens are distributed at equal intervals in the front-back direction; the same longitudinal battens are placed in the jacking supports on the support rods arranged side by side in the left-right direction, a plurality of U-shaped grooves are formed in the longitudinal battens, a plurality of openings face upwards, the U-shaped grooves penetrate through the longitudinal battens in the front-back direction, the U-shaped grooves are distributed at equal intervals in the left-right direction, the same transverse battens are inserted into the corresponding U-shaped grooves in the longitudinal battens, and the upper surfaces of the transverse battens are abutted to the upper bottom template.