Energy-saving and environment-friendly construction formwork of cast-in-place concrete structure

Abstract

The utility model relates to the technical field of construction formworks, in particular to a cast-in-place concrete structure energy-saving environment-friendly construction formwork which comprises a formwork body, a plug, vertical ribs, back ridges and right-angle connecting pieces, the plug is arranged on the surface of one side of the formwork body and connected with the formwork body through expansion bolts, the vertical ribs are arranged at intervals in the horizontal direction, and the back ridges are arranged on the vertical ribs. The plugs are inserted into the vertical ribs, the back ridges are vertically and fixedly connected with the vertical ribs at the same time, the right-angle connecting pieces are fixedly connected with the vertical ribs and the back ridges at the same time, the support assemblies are fixedly connected with the back ridges through bolts, and each vertical rib is connected with a plurality of formwork bodies which are sequentially spliced from top to bottom at the same time. The formwork is easy and convenient to disassemble and replace, no garbage exists on the site after the formwork is disassembled, more energy is saved, the environment is better protected, meanwhile, the formwork is made of hollow plastic with the internal structure being square holes, formwork materials can be recycled, and waste of building resources is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction formwork, in particular to an energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures. Background Technique

[0002] Cast-in-situ concrete is the construction method for the concrete structures of most buildings. For cast-in-situ concrete, construction formwork needs to be set up at the construction site for pouring. The construction formwork enables the cast-in-situ concrete structure to take shape according to the specified position and geometric dimensions. After the concrete structure is poured, it bears the self-weight of the construction formwork and the external loads acting on it. The construction formwork is an important tool for the construction of concrete structure projects.

[0003] According to different materials, the existing construction formworks include wooden formworks, bamboo plywood formworks, steel formworks, etc. The wooden formworks put into use in the early stage of the construction industry are light in weight and low in cost, but they are prone to water seepage and deformation. Therefore, the turnover times of wooden formworks are few, and a large number of trees need to be cut down; compared with wooden formworks, bamboo plywood formworks have better moisture-proof effect and more turnover times, but they require secondary plastering and generate a large amount of construction waste; the turnover times of steel formworks are high, but the cost of steel formworks is high, the one-time investment is large, the weight is large, and it is not convenient for handling and installation. In addition, due to the poor support effect of wooden formworks and bamboo plywood formworks during use, a large number of support structures are required. Therefore, the energy-saving and environment-friendly performance of the above various types of formworks is poor. Content of the Utility Model

[0004] In view of the above problems, the utility model provides an energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures to solve the problems of few turnover times of the formwork for cast-in-situ concrete structures, waste of formwork materials, and large environmental pollution in the above existing technologies.

[0005] The technical solution adopted by the utility model to solve its technical problems:

[0006] An energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures includes a formwork body, plugs, vertical ribs, backing ribs, and right-angle connecting pieces. The formwork body is placed perpendicular to the ground. The plugs are arranged on one side surface of the formwork body. The formwork body is provided with multiple columns of plugs in the horizontal direction, and each column includes multiple plugs arranged at intervals in the vertical direction. The plugs are connected to the formwork body through expansion bolts. The vertical ribs are placed at intervals in the horizontal direction, and each column of plugs is inserted into one vertical rib respectively. The backing ribs are vertically arranged on the side of the vertical ribs away from the formwork body, and the backing ribs are fixedly connected to multiple vertical ribs at the same time. The right-angle connecting pieces are fixedly connected to the vertical ribs and the backing ribs at the same time. The support assembly is fixedly connected to the backing ribs through bolts. Each vertical rib is connected to multiple formwork bodies spliced in sequence from top to bottom at the same time.

[0007] Further, multiple columns of bosses are arranged at intervals along the horizontal direction on one surface of the template body. A plurality of bosses in each column are arranged at intervals along the vertical direction, and blind holes are formed on the surface of the bosses extending towards the inside of the template body.

[0008] Further, the plug includes a plug block and an expansion bolt. The cross-section of the plug block is T-shaped, and a completely penetrating limiting hole is provided at the center of the plug block. The limiting hole is a counterbore. The positions of the plug blocks correspond to the bosses one by one. The bosses are inserted into the limiting holes, and the expansion bolt penetrates from the upper surface of the T-shape of the plug block and cooperates with the bosses. The plug block and the template body are fixedly connected through the expansion bolt.

[0009] Further, a T-shaped slot is formed in the vertical rib. The plug block is inserted into the T-shaped slot. Plug fixing holes are symmetrically formed on both sides of the vertical rib, and the plug fixing holes are distributed at intervals along the vertical direction. A fixing screw is arranged below each plug block, and the fixing screw is inserted into two symmetric plug fixing holes.

[0010] Further, rib connection holes are symmetrically formed on both sides of the vertical rib, and back rib connection holes are formed on the back rib. Right-angle connection pieces are symmetrically arranged at the connection positions of both sides of the vertical rib and the back rib. The right-angle connection pieces are fixedly connected to the rib connection holes and the back rib connection holes through bolts at the same time.

[0011] Further, the bracket assembly includes a first bracket and a second bracket. The first bracket is fixedly connected to the lower back rib, and the second bracket is fixedly connected to the upper back rib. A plurality of the first brackets are arranged at intervals along the horizontal direction, and a plurality of the second brackets are arranged at intervals along the horizontal direction.

[0012] Further, the first bracket includes a first base, a first lower strut, a first upper strut, and a first back rib clamping plate. The first base is fixed on the ground. The lower end of the first lower strut is hinged to the first base. The upper end of the first upper strut is hinged to the first back rib clamping plate. The upper end part of the first lower strut is a hollow steel pipe, and the lower end of the first upper strut is inserted into the inside of the first lower strut. The first back rib clamping plate and the bracket fixing hole on the back rib are fixedly connected through a first clamping plate bolt.

[0013] Further, the first bracket further includes a first loop pin and a first sleeve. A plurality of groups of symmetric circular holes are formed in the radial direction at the lower end of the first upper strut, and the plurality of groups of circular holes are distributed at intervals along the axial direction of the first upper strut. The upper end of the first lower strut is a threaded section, and straight notch openings are symmetrically formed on the threaded section. The first loop pin passes through the straight notch opening on the first lower strut and one group of circular holes on the first upper strut. The first sleeve is sleeved on the outer ring of the threaded section of the first lower strut. The first sleeve is threadedly connected to the threaded section of the first lower strut, and the upper part of the first sleeve abuts against the first loop pin.

[0014] Further, the second support includes a second base, a second lower brace, a second upper brace, a second return pin, a second sleeve, and a second back rib splint. The structures and connection methods of the second base, the second lower brace, the second upper brace, the second return pin, the second sleeve, and the second back rib splint are the same as those of the first base, the first lower brace, the first upper brace, the first return pin, the first sleeve, and the first back rib splint respectively. The lengths of the second lower brace and the second upper brace in the second support are greater than the lengths of the first lower brace and the first upper brace in the first support.

[0015] Further, the template body uses hollow plastic as the material. Multiple columns of through holes are provided inside the template body. The holes in adjacent two columns are arranged in alignment. Internal reinforcing ribs are formed between two holes in adjacent columns and between two adjacent holes in the same column. Each column of bosses corresponds to one column of holes inside the template body. After the expansion bolt passes through one side surface of the template body, it abuts against the internal reinforcing rib in the horizontal direction.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model provides a cast-in-place concrete structure energy-saving and environmental protection construction template. The template body and the vertical ribs are plugged together through plugs, which is convenient for installation and disassembly and facilitates the replacement of the template body. The template body adopts a hollow plastic template, which is light in weight, has a high turnover rate, is convenient for handling and installation, can be reused a high number of times, and at the same time, the material of the template body can be recycled and reused, showing excellent performance in reducing construction costs and saving building materials.

[0018] 2. The present utility model provides a cast-in-place concrete structure energy-saving and environmental protection construction template. The disassembly and replacement are simple and convenient, and no garbage is generated on-site after replacement and removal, which is more energy-saving and environmental-friendly.

[0019] 3. The present utility model provides a cast-in-place concrete structure energy-saving and environmental protection construction template. The structure of the support structure is simple, greatly reducing the usage amount of support parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic structural diagram of the cast-in-place concrete structure energy-saving and environmental protection construction template according to the embodiment of the present utility model;

[0022] Figure 2Schematic diagram of the structure of the formwork body in the energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to the embodiments of the present invention;

[0023] Figure 3 Partial cross-sectional view of the formwork body in the energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to the embodiments of the present invention;

[0024] Figure 4 Schematic diagram of the expansion bolt according to the embodiments of the present invention;

[0025] Figure 5 Schematic diagram of the connection between the plug and the formwork in the energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to the embodiments of the present invention;

[0026] Figure 6 Schematic diagram of the connection between the vertical rib, the backing beam and the plug in the energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to the embodiments of the present invention;

[0027] Figure 7 Schematic diagram of the support in the energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to the embodiments of the present invention;

[0028] Figure 8 Schematic diagram of the connection of the strut in the energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to the embodiments of the present invention;

[0029] Figure 9 For the embodiments of the present invention Figure 7 Enlarged schematic diagram at position A.

[0030] Explanation of reference numerals:

[0031] 1. Formwork body; 11. Boss; 12. Internal reinforcing rib; 2. Plug; 21. Plug block; 211. Limiting hole; 22. Expansion bolt; 221. Expansion screw; 222. Expansion tube; 3. Vertical rib; 31. T-shaped slot; 32. Plug fixing hole; 33. Fixed screw; 34. Rib connection hole; 4. Backing beam; 41. Backing beam connection hole; 42. Support fixing hole; 5. Right-angle connecting piece; 6. Support assembly; 61. First base; 62. First lower strut; 63. First upper strut; 64. First return pin; 65. First sleeve; 66. First backing beam clamp; 661. First clamp notch; 662. First clamp bolt; 67. First support; 68. Second support. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the protection scope of the present utility model.

[0033] In the following description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The term "connection" only represents the connection between devices and has no special meaning.

[0034] For a specific embodiment, refer to Figures 1 - 9 , a cast-in-place concrete structure energy-saving and environmental protection construction formwork, including a formwork body 1, plugs 2, vertical ribs 3, backing ribs 4, and right-angle connecting pieces 5. The formwork body 1 is placed perpendicular to the ground. The plugs 2 are arranged on one side surface of the formwork body 1. The formwork body 1 is provided with multiple columns of plugs 2 in the horizontal direction, and each column includes multiple plugs 2 arranged at intervals in the vertical direction. The plugs 2 are connected to the formwork body 1 through expansion bolts 22. The vertical ribs 3 are placed at intervals in the horizontal direction, and each column of plugs 2 is inserted into one vertical rib 3. The backing ribs 4 are vertically arranged on the side of the vertical ribs 3 away from the formwork body 1, and the backing ribs 4 are fixedly connected to multiple vertical ribs 3 at the same time. The right-angle connecting pieces 5 are fixedly connected to the vertical ribs 3 and the backing ribs 4 at the same time. The support assembly 6 is fixedly connected to the backing ribs 4 through bolts. Each vertical rib 3 is connected to multiple formwork bodies 1 spliced in sequence from top to bottom.

[0035] Furthermore, the formwork body 1 is made of hollow plastic. Multiple columns of through holes are arranged inside the formwork body 1. The holes in adjacent two columns are aligned. Internal reinforcing ribs 12 are formed between two holes in adjacent columns and between two adjacent holes in the same column. In this embodiment, three holes are arranged in each column inside the formwork body 1. Multiple columns of bosses 11 are arranged at intervals in the horizontal direction on one side surface of the formwork body 1. The multiple bosses 11 in each column are arranged at intervals in the vertical direction. Each column of bosses 11 corresponds to one column of holes inside the formwork body 1. Blind holes are formed on the surface of the bosses 11 extending towards the inside of the formwork body 1, and the blind holes do not damage the smoothness of the surface of the side of the formwork body 1 in contact with the concrete.

[0036] Further, the plug 2 includes a plug block 21 and an expansion bolt 22. The cross-section of the plug block 21 is T-shaped. A completely penetrating limit hole 211 is provided at the center of the plug block 21. The limit hole 211 is a counterbore. The positions of the plug blocks 21 correspond to the bosses 11 one by one. The bosses 11 are inserted into the limit holes 211. The expansion bolt 22 penetrates through the T-shaped upper surface of the plug block 21 and cooperates with the boss 11.

[0037] Furthermore, the expansion bolt 22 includes an expansion screw 221 and an expansion tube 222. The expansion tube 222 is sleeved outside the expansion screw 221. The smooth section of the expansion tube 222 is inserted into the inner wall of the boss 11. The expansion section of the expansion tube 222 passes through one side surface of the formwork body 1 and abuts against the internal reinforcing rib 12 in the horizontal direction. When the expansion screw 221 is tightened, the expansion tube 222 is tightened with the formwork body 1, and the plug block 21 and the formwork body 1 are fixedly connected together through the expansion bolt 22.

[0038] Further, the vertical rib 3 is a C-shaped steel structure member. A T-shaped slot 31 is provided on the vertical rib 3. The vertical rib 3 includes a plug fixing hole 32 and a rib connecting hole 34. The T-shaped slot 31 is provided on the side of the vertical rib 3 close to the formwork body 1. The T-shaped slot 31 is inserted into the plug block 21. Plug fixing holes 32 are symmetrically provided on both sides of the vertical rib 3. The plug fixing holes 32 are spaced apart along the vertical direction. A fixing screw 33 is provided below each plug 2. The fixing screw 33 is inserted into two symmetric plug fixing holes 32, so as to fix the position of the plug 2 in the vertical direction. The rib connecting holes 34 are symmetrically provided on both sides of the vertical rib 3. The rib connecting holes 34 are spaced apart along the vertical direction. The rib connecting holes 34 are fixedly connected to the right-angle connecting piece 5 through bolts.

[0039] Further, the backing strip 4 is an angle steel. The backing strip 4 is provided on the side surface of the vertical rib 3 away from the formwork body 1. A backing strip connecting hole 41 is provided on the side surface of the backing strip 4 in contact with the vertical rib 3. The backing strip connecting hole 41 is connected to the right-angle connecting piece 5 through bolts; a bracket fixing hole 42 is provided on the surface of the backing strip 4 perpendicular to the vertical rib 3. The bracket fixing hole 42 is fixedly connected to the bracket assembly 6 through bolts.

[0040] Further, the right-angle connecting piece 5 is symmetrically placed at the connection between the two sides of the vertical rib 3 and the backing strip 4. The two perpendicular surfaces of the right-angle connecting piece 5 are respectively connected to the vertical rib 3 and the backing strip 4 through bolts, so as to fix the relative positions of the vertical rib 3 and the backing strip 4.

[0041] Further, the bracket assembly 6 includes a first bracket 67 and a second bracket 68. The first bracket 67 is fixedly connected to the lower backing strip 4, and the second bracket 68 is fixedly connected to the upper backing strip 4.

[0042] Further, a plurality of the first brackets 67 are arranged at intervals in the horizontal direction. The first bracket 67 includes a first base 61, a first lower brace 62, a first upper brace 63, a first loop pin 64, a first sleeve 65, and a first back rib splint 66. The first base 61 is fixed on the ground. The lower end of the first lower brace 62 is hinged to the first base 61. The upper end of the first upper brace 63 is hinged to the first back rib splint 66. The upper end part of the first lower brace 62 is a hollow steel pipe. The lower end of the first upper brace 63 is inserted into the interior of the first lower brace 62. A plurality of groups of symmetric round holes are formed in the lower end of the first upper brace 63 in the radial direction. The plurality of groups of round holes are arranged at intervals along the axial direction of the first upper brace 63. The upper end of the first lower brace 62 is a threaded section, and straight notches are symmetrically formed in the threaded section. The first loop pin 64 passes through the straight notch on the first lower brace 62 and one of the groups of round holes on the first upper brace 63. The first upper brace 63 and the first lower brace 62 are connected together by the first loop pin 64. The first sleeve 65 is sleeved on the outer circle of the threaded section of the first lower brace 62. The first sleeve 65 is threadedly connected to the threaded section of the first lower brace 62. The upper part of the first sleeve 65 abuts against the first loop pin 64, so as to fix the position of the first loop pin 64 in the axial direction of the first lower brace 62. A first splint notch 661 is formed on one side of the first back rib splint 66 close to the formwork body 1. One side of the back rib 4 perpendicular to the vertical rib 3 is inserted into the first splint notch 661. The bracket fixing holes 42 on the first back rib splint 66 and the back rib 4 are fixedly connected by a first splint bolt 662.

[0043] Further, a plurality of the second brackets 68 are also arranged at intervals in the horizontal direction. The second bracket 68 includes a second base, a second lower brace, a second upper brace, a second loop pin, a second sleeve, and a second back rib splint. The structures and connection manners of the second base, the second lower brace, the second upper brace, the second loop pin, the second sleeve, and the second back rib splint are respectively the same as those of the first base 61, the first lower brace 62, the first upper brace 63, the first loop pin 64, the first sleeve 65, and the first back rib splint 66. Since the supporting heights of the plurality of back ribs 4 are inconsistent, the lengths of the second lower brace and the second upper brace in the second bracket 68 are respectively greater than the lengths of the first lower brace 62 and the first upper brace 63 in the first bracket 67.

[0044] When workers are constructing the energy-saving and environment-friendly formwork for cast-in-situ concrete structures of the present utility model, they first install a formwork body 1. Insert the convex platform 11 into the limiting hole 211 on the plug block 21, insert the expansion bolt 22 through the T-shaped upper surface of the plug block 21, insert the expansion bolt 22 from the convex platform 11 into the formwork body 1, and tighten the expansion screw 221 in the expansion bolt 22. The plug block 21 and the formwork body 1 are tightened together to complete the fixed connection between the plug 2 and the formwork body 1. Each row of plugs 2 is inserted into the corresponding vertical rib 3, and the fixing screw 33 is passed through the symmetric plug fixing holes 32 on both sides of the vertical rib 3, and the nut is tightened to complete the fixed connection between the plug 2 and the vertical rib 3. Place the back rib 4 perpendicular to the vertical rib 3, place the right-angle connecting piece 5 at the connection of the vertical rib 3 and the back rib 4, and fixedly connect the right-angle connecting piece 5 to both the vertical rib 3 and the back rib 4 through bolts to complete the fixed connection between the back rib 4 and the vertical rib 3.

[0045] Install other formwork bodies 1 in sequence, build the support assembly 6 to perform single-sided formwork support on two groups of formwork bodies 1, connect and support the first support 67 with the lower back rib 4, connect and support the second support 68 with the upper back rib 4, and adjust the angles of the first support 67 and the second support 68. Fix multiple first supports 67 and multiple second supports 68 on the ground at intervals in the horizontal direction.

[0046] When it is necessary to replace the formwork body 1, the worker only needs to take out the fixing screw 33, move the formwork body 1 in the vertical direction, so that the plug 2 is removed from the T-shaped slot 31 of the vertical rib 3, take out the expansion bolt 22, and the plug 2 is separated from the formwork body 1, then the disassembly of the formwork body 1 can be completed, and then the replacement and installation can be carried out. It is convenient and fast, and will not cause further damage to other formwork bodies 1, reducing the waste of formwork and not generating a lot of construction waste.

[0047] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and environment-friendly construction formwork for cast-in-place concrete structures, characterized in that, It includes a formwork body (1), a plug (2), vertical ribs (3), a backing rib (4) and a right-angle connecting piece (5). The formwork body (1) is placed perpendicular to the ground. The plug (2) is arranged on one side surface of the formwork body (1). The formwork body (1) is provided with multiple columns of plugs (2) in the horizontal direction. Each column includes multiple plugs (2) arranged at intervals in the vertical direction. The plug (2) is connected to the formwork body (1) through an expansion bolt (22). The vertical ribs (3) are placed at intervals in the horizontal direction. Each column of plugs (2) is inserted into one vertical rib (3). The backing rib (4) is vertically arranged on the side of the vertical rib (3) away from the formwork body (1). The backing rib (4) is fixedly connected to multiple vertical ribs (3) at the same time. The right-angle connecting piece (5) is fixedly connected to the vertical rib (3) and the backing rib (4) at the same time. The support assembly (6) is fixedly connected to the backing rib (4) through bolts. Each vertical rib (3) is connected to multiple formwork bodies (1) spliced in sequence from top to bottom at the same time.

2. The energy-saving and environment-friendly construction formwork for cast-in-situ concrete structures according to claim 1, characterized in that On one side surface of the formwork body (1), multiple columns of bosses (11) are arranged at intervals in the horizontal direction. Multiple bosses (11) in each column are arranged at intervals in the vertical direction. Blind holes are formed by extending the surface of the boss (11) into the formwork body (1).

3. The energy-saving and environmental protection construction formwork for cast-in-place concrete structures according to claim 2, characterized in that, The plug (2) includes a plug block (21) and an expansion bolt (22). The cross-section of the plug block (21) is T-shaped. A completely penetrating limiting hole (211) is formed at the center of the plug block (21). The limiting hole (211) is a counterbore. The position of the plug block (21) corresponds to that of the boss (11) one by one. The boss (11) is inserted into the limiting hole (211). The expansion bolt (22) penetrates from the T-shaped upper surface of the plug block (21) and cooperates with the boss (11). The plug block (21) is fixedly connected to the formwork body (1) through the expansion bolt (22).

4. The energy-saving and environment-friendly construction formwork for cast-in-place concrete structures according to claim 3, characterized in that, The vertical rib (3) is provided with a T-shaped slot (31). The plug block (21) is inserted into the T-shaped slot (31). Plug fixing holes (32) are symmetrically formed on both sides of the vertical rib (3). The plug fixing holes (32) are distributed at intervals in the vertical direction. A fixing screw (33) is arranged below each plug block (21). The fixing screw (33) is inserted into two symmetric plug fixing holes (32).

5. The energy-saving and environment-friendly construction formwork for cast-in-place concrete structures according to claim 1, wherein, Rib connecting holes (34) are symmetrically formed on both sides of the vertical rib (3). Backing rib connecting holes (41) are formed on the backing rib (4). Right-angle connecting pieces (5) are symmetrically arranged at the connection between both sides of the vertical rib (3) and the backing rib (4). The right-angle connecting piece (5) is fixedly connected to the rib connecting hole (34) and the backing rib connecting hole (41) through bolts at the same time.

6. The energy-saving and environmental protection construction formwork for cast-in-place concrete structures according to claim 1, characterized in that The support assembly (6) includes a first support (67) and a second support (68). The first support (67) is fixedly connected to the lower backing rib (4). The second support (68) is fixedly connected to the upper backing rib (4). Multiple first supports (67) are arranged at intervals in the horizontal direction. Multiple second supports (68) are arranged at intervals in the horizontal direction.

7. An energy-saving and environment-friendly construction formwork for cast-in-place concrete structures according to claim 6, characterized in that, The first support (67) includes a first base (61), a first lower brace (62), a first upper brace (63), and a first back rib clamping plate (66). The first base (61) is fixed to the ground. The lower end of the first lower brace (62) is hinged to the first base (61). The upper end of the first upper brace (63) is hinged to the first back rib clamping plate (66). The upper end portion of the first lower brace (62) is a hollow steel pipe. The lower end of the first upper brace (63) is inserted into the interior of the first lower brace (62). The first back rib clamping plate (66) and the support fixing hole (42) on the back rib (4) are fixedly connected by a first clamping bolt (662).

8. An energy-saving and environment-friendly construction formwork for cast-in-place concrete structures according to claim 7, characterized in that, The first support (67) further includes a first return pin (64) and a first sleeve (65). The lower end of the first upper brace (63) is radially provided with multiple groups of symmetric round holes. The multiple groups of round holes are spaced along the axial direction of the first upper brace (63). The upper end of the first lower brace (62) is a threaded section, and straight slots are symmetrically opened on the threaded section. The first return pin (64) passes through the straight slot on the first lower brace (62) and one group of round holes on the first upper brace (63). The first sleeve (65) is sleeved on the outer circle of the threaded section of the first lower brace (62). The first sleeve (65) is threadedly connected to the threaded section of the first lower brace (62). The upper part of the first sleeve (65) abuts against the first return pin (64).

9. The energy-saving and environmental protection construction formwork for cast-in-place concrete structures according to claim 8, characterized in that, The second support (68) includes a second base, a second lower brace, a second upper brace, a second return pin, a second sleeve, and a second back rib clamping plate. The structures and connection methods of the second base, the second lower brace, the second upper brace, the second return pin, the second sleeve, and the second back rib clamping plate are respectively the same as those of the first base (61), the first lower brace (62), the first upper brace (63), the first return pin (64), the first sleeve (65), and the first back rib clamping plate (66). The lengths of the second lower brace and the second upper brace in the second support (68) are respectively greater than the lengths of the first lower brace (62) and the first upper brace (63) in the first support (67).

10. A cast-in-place concrete structure energy-saving and environmental protection construction formwork according to claim 3, characterized in that, The template body (1) is made of hollow plastic. Multiple columns of through holes are provided inside the template body (1). The holes in adjacent two columns are aligned. Internal reinforcing ribs (12) are formed between two holes in adjacent columns and between two adjacent holes in the same column. Each column of bosses (11) corresponds to one column of holes inside the template body (1). The expansion bolt (22) passes through one side surface of the template body (1) and abuts against the internal reinforcing rib (12) in the horizontal direction.

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