CN220100633U - Pit floor pouring template - Google Patents

Abstract

The utility model relates to the technical field of templates, and provides a pit floor pouring template, which comprises at least four square boxes, wherein the square boxes are distributed at intervals in a rectangular array form to form a groined pouring channel of a groined beam; each square box body comprises a square outer frame, an inner supporting framework and a top plate; the square outer frame comprises a plurality of upright side plates, and the side plates are sequentially connected end to form the square outer frame; the inner support framework is supported in the square outer frame; the top plate is paved on the top of the square outer frame; and each square box body is provided with a model mark. The well-shaped pouring channels formed between the square boxes distributed at intervals are utilized to pour the well-shaped beams, template cutting and splicing operation is not needed, the on-site construction workload is reduced, the construction efficiency is obviously improved, and the construction period is shortened. The square box body is not easy to deform, and the molding quality is ensured.

Description

Pit floor pouring template

Technical Field

The utility model belongs to the technical field of templates, and particularly relates to a pit floor pouring template.

Background

Pit floors are a form of construction that has evolved from reinforced concrete bi-directional slabs. The main difference between the pit floor and the cast-in-situ unidirectional slab rib floor is that the heights of the sections of the two directional beams are generally equal, the main beams and the secondary beams are not separated, and the main beams and the secondary beams bear loads transmitted by the floor together. The main difference between the pit floor and the cast-in-situ two-way floor rib-shaped floor is that no column is arranged at the intersection of the beams, and the spacing between the beams is generally 1.5 m-3 m. At present, pit-type floors are mostly adopted for large-scale factory buildings. The construction period of the factory building is relatively tight, the cross beams are dense, the traditional method of adopting the wood form site to support the forms one by one is used for pouring construction of the pit floor, the wood forms are convenient to obtain, but difficult to install and detach, the workload is large, the construction efficiency is low, and the construction period requirement cannot be met. In addition, the wood forms are subjected to on-site cutting and splicing, so that the construction quality of the beam is poor.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a pit floor pouring template, which aims to solve the problems of low construction efficiency and poor forming quality of the existing pit floor pouring construction mould in a mode that wood templates are adopted to support the templates one by one on site.

The utility model provides a pit floor pouring template, which comprises at least four square boxes, wherein the square boxes are distributed at intervals in a rectangular array form to form a groined pouring channel of a groined beam; each square box body comprises a square outer frame, an inner supporting framework and a top plate; the square outer frame comprises a plurality of upright side plates, and the side plates are sequentially connected end to form the square outer frame; the inner support framework is supported in the square outer frame; the top plate is paved on the top of the square outer frame; and each square box body is provided with a model mark.

Further, the inner support frame includes: the plurality of upright first supporting frames are arranged at intervals along the length direction of the square outer frame, and two ends of each first supporting frame are supported at two inner sides of the square outer frame in the width direction; and a plurality of upright second support frames supported between the first support frames and the square outer frame or between the two first support frames.

Further, the square box further includes: the plurality of first positioning components are distributed in the square outer frame and are used for being matched with the two ends of the first supporting frame in a positioning mode; and the second positioning assemblies are distributed on two sides of the first supporting frame and are used for being matched with two ends of the second supporting frame in a positioning way.

Through the positioning effect of first locating component and second locating component, not only do benefit to the assembly speed that improves the internal stay skeleton, also can improve assembly quality to play certain reinforcement effect to the internal stay skeleton.

Further, the square outer frame further includes a reinforcement provided at an inner side of the side plate.

Further, the end part of at least one side plate is provided with a right-angle flanging part, and the right-angle flanging part is lapped or spliced with the end part of the adjacent side plate.

Through the effect of right angle turn-ups portion, guaranteed the shaping quality of well word roof beam in the bight, also can avoid pouring in-process concrete to get into inside the square outer frame simultaneously.

Further, the square box comprises a unfilled corner box body, and at least one edge of the square outer frame of the square box body is provided with an unfilled corner structure so as to form the unfilled corner box body.

Further, the unfilled corner structure comprises an L-shaped right angle plate which is vertically arranged and a supporting framework which is arranged on the L-shaped right angle plate and is positioned on the inner side of the square outer frame.

Further, the model marks arranged on the square box body comprise a first model mark and a second model mark; the first model mark is arranged on the unfilled corner box body; the square box body is provided with a second model mark.

Further, the pit floor pouring template further comprises a platform plate, wherein the platform plate is horizontally arranged; the square boxes are distributed on the platform plate at intervals in a rectangular array mode of n rows and m columns, wherein n and m are integers greater than or equal to 2.

Further, a positioning mark for marking the arrangement position of the square box body is arranged on the platform plate.

The beneficial effects of the utility model are as follows: the cross beam is poured through the cross pouring channels formed between the square boxes distributed at intervals of the rectangular array, compared with the traditional mode that the wooden templates are supported one by one on site, template cutting and splicing operation is not needed, site construction workload is reduced, construction efficiency is obviously improved, and construction period is shortened. And the square box body can be prefabricated, has higher precision than on-site template formwork, is provided with the internal stay skeleton in the square outer frame of square box body, has guaranteed the intensity of square box body, and square box body is difficult for yielding, has guaranteed shaping quality. In addition, the square box body is convenient to disassemble and assemble, can be used repeatedly, and reduces the construction cost. The beam height of the cross beam depends on the height of the square box body, so that the beam height of the cross beam can be limited by limiting the height of the square box body, and compared with a casting cavity formed by enclosing a traditional wood template, the construction process is simplified and the construction efficiency is further improved by measuring the casting depth of concrete.

Drawings

Fig. 1 is a schematic perspective view of a square box of a pit floor casting formwork of the present utility model.

Fig. 2 is a schematic top view of fig. 1.

Fig. 3 is a schematic perspective view of a first supporting frame of the inner supporting frame of the square box in fig. 1.

Fig. 4 is a schematic perspective view of a second supporting frame of the inner supporting frame of the square box in fig. 1.

Fig. 5 is a schematic perspective view of an inner side view of one side plate of the square box in fig. 1.

Fig. 6 is a schematic perspective view of the outer side view of the side plate of fig. 5.

Fig. 7 is a schematic perspective view of the inner side of another side plate of the square box in fig. 1.

Fig. 8 is a schematic perspective view of the outer side view of the side plate in fig. 7.

Fig. 9 is an enlarged schematic view of the right-angle flanging portion of one side plate and the top end portion of the other side plate in fig. 1.

Fig. 10 is a schematic structural view of another embodiment of the square chest according to the present utility model.

Fig. 11 is a schematic perspective view of a top mounting plate of the square box of fig. 1.

Fig. 12 is a schematic view of the structure of the unfilled corner case of the present utility model.

Fig. 13 is a schematic perspective view of the inside view of the unfilled corner structure of fig. 12.

Fig. 14 is a schematic perspective view of the outside view of the unfilled corner structure of fig. 12.

Fig. 15 is a schematic view of a partial top view structure of a pit floor casting template of the present utility model, in which a plurality of square boxes are provided on a platform plate to form a well-shaped casting channel.

Fig. 16 is a plan view of a square box required for the 2-story 07 area of a CAD-derived pit floor when the pit floor is constructed using the pit floor casting template of the present utility model.

In the figure:

1-a top plate;

2-a first support frame; 21-a second positioning assembly;

3-a second support frame;

4-a first side template; 41-right angle flanging part; 42-a first reinforcing frame; 43-reinforcing the battens; 44-a first positioning assembly;

5-a second sideform; 51-a second reinforcing frame; 52-a third positioning assembly;

6-unfilled corner construction; 61-supporting a skeleton; 62-a first riser; 63-a second riser;

7-a platform plate;

8-pouring channels;

9-square box body.

Detailed Description

The utility model is described in further detail below with reference to the drawings and specific examples.

The pit floor pouring template as shown in fig. 1 and 15 comprises a platform plate 7 and at least four prefabricated square boxes 9, wherein the number of the square boxes 9 is more than 4; the square boxes 9 are distributed on the platform plate 7 at intervals in an array form of n rows and m columns to form a cross beam cross pouring channel 8, wherein n and m are integers greater than or equal to 2.

As shown in fig. 1, each square box 9 comprises a square outer frame, an inner support framework and a top plate 1; the square outer frame comprises a plurality of upright side plates, and the side plates are sequentially connected end to form the square outer frame; the inner support framework is supported in the square outer frame; the top plate 1 is paved on the top of the square outer frame and closes the top opening of the square outer frame.

Each square box 9 has four sides, and the side plate of the square outer frame is not limited to only four, and may be a side plate formed by splicing a plurality of plates to one side of the square outer frame, for example.

As shown in fig. 11, the top plate 1 is not necessarily a single plate, but may be formed by splicing a plurality of plates.

In this embodiment, the sheet material of the square chest 9 is preferably a wood board, but it is not excluded that other materials, such as aluminum templates, may be used.

The inner support framework as shown in fig. 1 and 2 comprises 4 upright first support frames 2 and 15 upright second support frames 3.

As shown in fig. 2, 4 upright first support frames 2 are arranged at intervals along the length direction of the square outer frame, and both ends of each first support frame 2 are supported at both inner sides in the width direction of the square outer frame. 15 upright second support frames 3 supported between the first support frames 2 and the square outer frame or between the two first support frames 2. The second support frame 3 is perpendicular to the first support frame 2. Wherein, three rectangular spaces are formed at the four first support frames 2 with a keeping interval, two rectangular spaces are formed at two ends of the two first support frames 2 at the outermost side of the four first support frames 2 in the length direction of the square outer frame respectively, and therefore five rectangular spaces are formed between the four first support frames 2 and the square outer frame. The 15 upright second support frames 3 are equally divided into five groups, each group comprises 3 second support frames 3 which are distributed at intervals along the length direction of the first support frame 2, and the five groups of second support frames 3 are respectively arranged in five rectangular spaces in a one-to-one correspondence mode.

Of course, the square chest 9 of the present utility model is not limited to the above-described number of first support frames 2 and second support frames 3. The first support frames 2 may be provided only one, and the second support frames 3 may be provided two, distributed on both sides of the first support frames 2.

As shown in fig. 1 and 2, the square chest 9 further includes a plurality of first positioning assemblies 44 and a plurality of second positioning assemblies 21.

The first positioning components 44 are distributed inside the square outer frame and are used for being matched with two ends of the first supporting frame 2 in a positioning mode.

The second positioning assemblies 21 are distributed on two sides of the first supporting frame 2 and are used for being matched with two ends of the second supporting frame 3 in a positioning mode.

The square box 9 of the present embodiment further includes a plurality of third positioning assemblies 52, which are distributed inside the square outer frame and are used for positioning and matching with one end of a portion of the second supporting frame 3.

The first positioning assembly 44, the second positioning assembly 21 and the third positioning assembly 52 may have the same structure, and each of the first positioning assembly, the second positioning assembly and the third positioning assembly includes a plurality of clamping members, and each of the plurality of clamping members includes two clamping blocks and a limiting channel between the two clamping blocks. Taking the first positioning component 44 as an example, the first supporting frame 2 is vertically arranged, and the end part of the first supporting frame is vertically inserted into a limiting channel between two clamping blocks of the first positioning component 44, so that the first supporting frame 2 can only vertically displace, and the clamping blocks limit the transverse displacement of the first supporting frame 2.

As shown in fig. 3, the first support frame 2 includes two long bars horizontally and vertically spaced apart, and the first support frame 2 further includes five short bars connected between the two long bars. Two sides of each long rod are respectively provided with three first positioning assemblies 44 along the length direction at intervals, and each first positioning assembly 44 comprises two clamping blocks and a vertical limiting channel positioned between the two clamping blocks. The two limiting channels on the same vertical direction of the two long rods are vertically aligned.

As shown in fig. 4, the second support frame 3 includes a rectangular frame structure formed by connecting four short bars end to end.

The long rod and the short rod of the present embodiment are preferably square. Of course, the device can also be a rod or a pipe made of other materials.

The side plates of the square outer frame in this embodiment have two structural forms, specifically, the side plates of the square outer frame include two first side templates 4 and two second side templates 5. The first sideform 4 is shown in fig. 5 and 6 and the second sideform 5 is shown in fig. 7 and 8.

The length of the first side form 4 of this embodiment is longer than the length of the second side form 5, i.e. the length direction of the first side form 4 is the length direction of the square outer frame. The plate surface of the first side template 4 is parallel to the vertical surface of the second supporting frame 3, and the plate surface of the second side template 5 is parallel to the vertical surface of the first supporting frame 2.

As shown in fig. 2, the first positioning assembly 44 is disposed inside the first side form 4. The second positioning components 21 are arranged on two sides of the first supporting frame 2, the third positioning components 52 are arranged on the inner side of the second side template 5, and the setting positions of the third positioning components 52 and the setting positions of the second positioning components 21 are both located on the vertical face of the second supporting frame 3.

As shown in fig. 5 and 6, the first side form 4 is provided with a right-angle flanging portion 41 at each end, and the right-angle flanging portion 41 is overlapped or spliced with the end of the adjacent side plate. In this embodiment, the right-angle flange parts 41 at both ends of the two first side templates 4 are respectively spliced with the ends of the two second side templates 5.

As shown in fig. 5 and 6, the first side form 4 is further provided at an inner side thereof with a first reinforcing frame 42, and the first reinforcing frame 42 includes two parallel long bars and six short bars connected between the two long bars. The long rod and the short rod are fixedly connected to the inner side plate surface of the first side template 4. The connection mode can adopt steel nails for connection. The first positioning member 44 is fixedly provided on the long bar of the first reinforcing frame 42.

As shown in fig. 5-8, the square outer frame further includes a reinforcement member provided on the inner side of the side plate.

The reinforcement includes a reinforcing batten 43, and the reinforcing batten 43 is fixedly attached to the long bar of the first reinforcing frame 42 inside the first side form 4 by nails.

As shown in fig. 7 and 8, a second reinforcing frame 51 is provided on the inner side of the second sideform 5. The second reinforcing frame 51 includes two parallel long bars and five short bars connected between the two long bars. The third positioning member 52 is fixedly attached to the long bar of the second reinforcing frame 51 of the second sideform 5.

As shown in fig. 9, the length of the turned-up edge of the right-angle turned-up portion 41 of the first side form 4 is longer than the thickness of the long bar of the first reinforcing frame 42 inside the first side form 4, so that the right-angle turned-up portion 41 can abut against the end of the second side form 5, and the right-angle turned-up portion 41 protrudes out of the first reinforcing frame 42. The reinforcing batten 43 provided on the first reinforcing frame 42 on the inner side of the first side form 4 sandwiches the second reinforcing frame 51 on the inner side of the second side form 5 with the right-angle burring 41 protruding outside the first reinforcing frame 42. In this way, the structural stability of the square box 9 is ensured.

As shown in fig. 10, the square box 9 may be reduced in size in an equal proportion as a whole, or the number and positions of the first support frames 2 and the second support frames 3 of the inner support frame may be changed with the square outer frame of the square box 9 unchanged in size. Thus being applicable to the construction requirements of different pit floors.

As shown in fig. 12, according to the construction requirement, one edge of the square outer frame of some or a certain square box 9 is provided with a unfilled corner structure 6, and the square box provided with the unfilled corner structure 6 can be regarded as a unfilled corner box, and of course, the unfilled corner structures 6 can also be respectively arranged at different edges of the square outer frame of the square box 9. The unfilled corner box body can be a model of a square box body, and the unfilled corner box body is not limited to be provided with only one unfilled corner structure 6, and can be provided with unfilled corner structures 6 at different edges respectively. The well floor pouring template can comprise three main components of a square box body, an unfilled corner box body and a platform plate, and also can comprise two main components of the square box body and the platform plate, wherein the square box body comprises a square box body without an unfilled corner structure and a square box body with an unfilled corner structure, and for convenience in distinguishing, the square box body with the unfilled corner structure is called as the unfilled corner box body.

As shown in fig. 13 and 14, the unfilled corner structure 6 includes an L-shaped rectangular plate provided upright, and a support frame 61 provided on the inner side of the square outer frame of the L-shaped rectangular plate. The L-shaped right angle plate comprises a first vertical plate 62 and a second vertical plate 63 which are vertical. The inner sides of the first vertical plate 62 and the second vertical plate 63, which are positioned on the square outer frame, are respectively provided with a supporting framework 61, and the supporting framework 61 comprises a vertical rod and cross rods arranged at two ends of the vertical rod.

The square outer frame of the square box 9 comprises two first side templates 4 and two second side templates 5. The plate surface of the first vertical plate 62 of the L-shaped right angle plate is parallel to the plate surface of the first side template 4, and the plate surface of the second vertical plate 63 of the L-shaped right angle plate is parallel to the plate surface of the second side template 5. One end of the first vertical plate 62 facing away from the second vertical plate 63 is connected to an end of a second side form 5, and one end of the second vertical plate 63 facing away from the first vertical plate 62 is connected to an end of a first side form 4.

In order to improve the construction efficiency and ensure that the square box 9 is accurately placed on the platform plate 7, a positioning mark for marking the arrangement position of the square box 9 is arranged on the platform plate 7. The positioning mark may be a combination of letters and numbers. The positioning mark may contain coordinate information and number information of the square box 9. The constructor can quickly obtain the coordinate information and the number information corresponding to the positioning mark according to the positioning mark, so that the corresponding square box body 9 can be searched according to the number preset on the square box body 9, and the square box body 9 is lifted to the position of the platform plate 7, which is consistent with the coordinate fed back by the coordinate information.

Of course, the square box 9 does not have to be provided with physical numbering information, and the constructor can classify the square box 9 according to whether or not the corner missing structure 6 is provided. For example, the square box 9 not provided with the unfilled corner structure 6 is of class a, and the square box 9 provided with the unfilled corner structure 6 is of class B.

The method for constructing the pit floor by using the pit floor pouring template comprises the following steps:

determining the number and the size of square boxes 9 of a pit floor pouring template according to a plan view of a pit floor to be constructed, and prefabricating the square boxes 9; according to the plan view of the pit floor to be constructed, positioning marks for identifying the arrangement positions of the square boxes 9 are provided on the platform plate 7. According to the positioning marks on the platform plate 7, the square box body 9 is placed, so that model marks preset on the square box body 9 correspond to the positioning marks on the platform plate 7 one by one. The model marks preset on the square box body 9 comprise a first model mark and a second model mark; the square box body 9 with the unfilled corner structure 6 arranged on the edge of the square outer frame is provided with a first type mark, for example, a mark B; the square box 9, which is provided with no unfilled corner structure 6 at the edge of the square outer frame, is provided with a second type mark, such as mark a.

Setting a platform plate 7 of a pit floor pouring template below a pit floor to be constructed through a platform die or a portal frame, and adjusting the platform plate 7 to a target height;

hoisting prefabricated square boxes 9 above the platform plates 7, adjusting the positions of the square boxes 9, enabling the square boxes 9 to be distributed on the platform plates 7 at intervals in an array form of n rows and m columns to form a cross beam cross pouring channel 8, and fixing the square boxes 9 with the platform plates 7;

the beam ribs are arranged in the pouring channels 8;

pouring concrete into the pouring channel 8, and after the concrete reaches the design strength, sequentially removing the platform plate 7, the internal support framework of the square box body 9, the square outer frame of the square box body 9 and the top plate 1 of the square box body 9 from bottom to top.

Taking an electronic factory building project as an example, the J1-2 layers and the J3 layers of the project are required to be poured with 4.7 ten thousand square meters of pit-type building covers. The pit floor of the electronic factory building is constructed by adopting the pouring template, and the concrete steps are as follows:

1. floor plan and inventory

The length and width of the square boxes 9 are indicated by L, W, H, and the length and width of the unfilled corner are indicated by X, Y, respectively counting the number of square boxes 9 of different sizes in each region of each layer of the electronic factory building.

On the basis of the CAD drawing of the original structure of the electronic factory building, a plane figure layer of the square box body 9 is led out. And programming to establish the CAD secondary programming plug-in. Different square box 9 sizes and unfilled corner sizes are directly identified through programming languages, a total plane diagram of each layer is derived, the position of each square box 9 in the plane diagram corresponds to a square, and the square center is marked with the square box 9 model and the unfilled corner model, as shown in fig. 16. And the technician marks the axis number according to the site partition, and splits the axis number into construction drawings. Meanwhile, the EXCEL list of each area of each floor is derived through CAD secondary programming language.

Square box model and quantity statistics sample table

2. Drawing deepened drawing and structure calculation of square box 9

The model and the size of the square box body 9 are determined, drawing marking is completed, and drawing design is deepened.

And calculating the bearing capacity of the square box body 9 to finish calculation report.

3. Determining the construction process flow

The method comprises the steps of square box 9 production and processing, platform plate 7 laying, square box 9 placing position paying-off positioning, square box 9 unpacking, ground assembling and lifting, square box 9 reinforcing and top plate 1 mounting, concrete pouring and square box 9 dismantling.

4. Square box 9 processing and storing

The processing factory performs unified processing based on the processing drawing, packs according to the model, and is responsible for transportation to a designated storage yard.

The square box 9 is packed and wrapped by plastic film to ensure that the square box cannot be affected with damp. After the square box 9 is transported to the site, the square box 9 with the corresponding number is transported to the correct position according to the construction plan to be installed by placing the square box 9 at a position which is not affected by rainwater and moisture.

5. Paying-off positioning

Setting up a bench formwork or a heavy portal, paving a platform plate 7 according to elevation requirements, performing positioning measurement, and paying off and positioning the square box 9. The technical section hairstyle number marks the drawing to the construction department, and the construction department can conveniently install the square box 9 according to the drawing.

6. Assembling and lifting square box 9

The field work length takes a template for workers and makes a field bottom. Unpacking of the corresponding square box 9 is completed, the square outer frame and the inner supporting framework of the square box 9 are installed on the ground, the packing belt is used for repacking, the square box 9 is transported to a prefabricated hoisting cage, hoisting of the square boxes 9 is carried out once to improve hoisting efficiency, and occupation of a tower crane is reduced.

The square box 9 manufacturing manufacturer is invited to make a detailed technical mating on the assembly mode of the square box 9, and the on-site assembly work is ensured to be quick and smooth. The square box 9 lifted to the platform plate 7 is conveyed to the corresponding position of the platform plate 7 according to the corresponding model marked by the positioning mark on the platform plate 7, the bottom of the square box 9 is fixed with the platform plate 7 by using an air nail gun, the bottom of the square box 9 fixed with the platform plate 7 comprises the bottom of an inner supporting framework and the bottom of a square outer frame, and one spike is beaten every 15 centimeters.

After the reinforcement is completed, the top plate 1 of the square box 9 is mounted and fixed.

7. Steel bar arrangement

After the square boxes 9 are installed, a cross pouring channel 8 of the cross beam is formed among the square boxes 9, and beam ribs are arranged in the pouring channel 8.

8. Concrete pouring and dismantling of square box 9

Pouring concrete into the pouring channel 8, and after the concrete reaches the design strength, sequentially removing the platform plate 7, the internal support framework of the square box body 9, the square outer frame of the square box body 9 and the top plate 1 of the square box body 9 from bottom to top. Of course, before casting the concrete, a side wall form may be provided at the periphery of the outermost square box 9 to enclose the casting channel 8 formed by the closed square box 9.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be comprehended by those skilled in the art and are intended to be within the scope of the utility model.

Claims (10)

1. The well floor pouring template is characterized by comprising at least four square boxes, wherein the square boxes are distributed at intervals in a rectangular array form to form a well-shaped pouring channel of a well-shaped beam; each square box body comprises a square outer frame, an inner supporting framework and a top plate; the square outer frame comprises a plurality of upright side plates, and the side plates are sequentially connected end to form the square outer frame; the inner support framework is supported in the square outer frame; the top plate is paved on the top of the square outer frame; and each square box body is provided with a model mark.

2. The pit floor casting mold plate of claim 1, wherein the endoskeleton comprises:

the plurality of upright first supporting frames are arranged at intervals along the length direction of the square outer frame, and two ends of each first supporting frame are supported at two inner sides of the square outer frame in the width direction; and

and the plurality of upright second supporting frames are supported between the first supporting frames and the square outer frame or between the two first supporting frames.

3. The pit floor casting mold plate of claim 2, wherein the square chest further comprises:

the plurality of first positioning components are distributed in the square outer frame and are used for being matched with the two ends of the first supporting frame in a positioning mode; and

the second positioning assemblies are distributed on two sides of the first supporting frame and are used for being matched with two ends of the second supporting frame in a positioning mode.

4. The pit floor casting mold according to claim 1, wherein the square outer frame further comprises a reinforcement provided on an inner side of the side plate.

5. The pit floor casting mold plate according to claim 1, wherein the end portion of at least one of the side plates is provided with a right-angle burring portion which overlaps or splices with the end portion of an adjacent side plate.

6. The pit floor casting mold plate according to claim 1, further comprising a unfilled corner box, wherein at least one edge of the square outer frame of the square box is provided with a unfilled corner structure to form the unfilled corner box.

7. The pit floor casting mold according to claim 6, wherein the unfilled corner structure comprises an L-shaped right angle plate arranged vertically and a supporting framework arranged on the L-shaped right angle plate and positioned on the inner side of the square outer frame.

8. The pit floor casting mold plate according to claim 6, wherein the model marks provided on the square box body include a first model mark and a second model mark; the first model mark is arranged on the unfilled corner box body; the square box body is provided with a second model mark.

9. The pit floor casting mold plate of claim 1, wherein the pit floor casting mold plate further comprises a platform plate, the platform plate being horizontally arranged; the square boxes are distributed on the platform plate at intervals in a rectangular array mode of n rows and m columns, wherein n and m are integers greater than or equal to 2.

10. The pit floor casting mold plate according to claim 9, wherein the platform plate is provided with a positioning mark for marking the arrangement position of the square box body.