Composite building template

Abstract

According to the technical scheme, the composite building formwork is characterized in that the composite building formwork comprises a panel, the upper side face, the lower side face, the left side face and the right side face of the panel are fixedly sleeved with covered edges, the back faces of the covered edges are located on the rear side of the back face of the panel, and a protection assembly used for protecting the panel and the covered edges is arranged on the panel; the protection assembly comprises two pairs of protection pieces which are distributed in a rectangular shape. By arranging the protection assembly, the two pairs of protection pieces can be attached to the outer side face of the covered edge in a wrapping mode, so that the covered edge and a panel in the covered edge can be prevented from being damaged due to extrusion and collision in the disassembling, assembling and carrying processes, the loss rate of the formwork is effectively reduced, meanwhile, the protection pieces can be stored in the inner space of the covered edge through the storage mechanism, and therefore the safety of the formwork is improved. The protective part is arranged on the template, so that when the template is used, the protective part does not influence normal work of the template, and the protective part does not need to be detached for additional storage, and therefore, the practicability and convenience of the template are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of building templates, and in particular to a composite building template. Background Art

[0002] Building formwork is a temporary supporting structure, which is made according to the design requirements to shape the concrete structure and components into the specified position and geometric dimensions, maintain their correct position, and bear the deadweight of the building formwork and the external loads acting on it. It is to ensure the quality of concrete engineering and construction safety, speed up the construction progress and reduce the project cost. Traditional building formwork is mainly divided into steel formwork and wooden board formwork. Steel formwork is expensive and easily corroded and rusted by concrete. Wooden formwork has low strength and is easily deformed and damaged during installation and disassembly.

[0003] Composite building formwork is a new type of material composed of two or more different materials, mainly used in the construction field. It is usually made of wood segments cut into veneers or wood angles cut into thin slices, bonded with adhesives to form three or more layers of plate-like materials. Compared with traditional formwork, composite building formwork has the advantages of lighter weight, higher strength, better durability and no harmful substances. Therefore, composite building formwork has gradually replaced traditional single-material building formwork. However, since composite building formwork can generally be used for multiple times during use, each use requires installation, disassembly and transportation. In these processes, the formwork will inevitably be collided and squeezed, causing some formwork to deform or even bend due to external forces, which makes the formwork unable to be used again, increasing the loss of the formwork.

[0004] The Chinese invention patent with patent application number CN202011631940.2 records a wear-resistant composite multi-layer steel building formwork, which can effectively protect it when it is subjected to impact force or hot and cold changes through an anti-collision reinforcement mechanism, so that the parts subjected to the impact force can be buffered one by one, so that the buffering effect is better. When subjected to impact force, it can effectively play a protective role and extend the service life. However, although an anti-collision reinforcement mechanism is designed in the above-mentioned formwork to improve the impact resistance of the formwork, the waterproof board wrapped around it and the wear-resistant plate on the front are still inevitably deformed and damaged after being directly subjected to collision and extrusion, making it still difficult for the formwork to maintain a low damage rate during disassembly and transportation, reducing the durability of the formwork. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a composite building template, which solves the problem that the existing composite building template is easily deformed or even bent after being collided and squeezed during the disassembly, assembly and transportation process, resulting in a high template loss rate.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A composite building formwork comprises a panel, wherein four sides of the panel are fixedly sleeved with edge wrappings, the back side of the edge wrappings is located at the rear side of the back side of the panel, and a protective component for protecting the panel and the edge wrappings is provided on the panel;

[0008] The protective component includes two pairs of protective parts distributed in a rectangular shape, and the two pairs of protective parts are respectively affixed to the upper, lower, left and right sides of the edging. The protective component also includes a storage mechanism connected to the back of the panel, and the storage mechanism is used to pull the two pairs of protective parts from the outer surface of the edging to the back of the panel and are located inside the edging.

[0009] Preferably, the panel includes a contact layer, a protective layer, and a bottom layer of a support layer which are pressed together in sequence from front to back, and the bottom layer is formed by a plurality of cross bars and a plurality of vertical bars intersecting and connecting the layers. The advantage of such an arrangement is that the contact layer, the protective layer, and the bottom layer of the support layer cooperate with each other to ensure that the formwork is not susceptible to corrosion damage while ensuring smooth forming of the concrete. This can reduce the loss rate of the formwork and improve the reliability of the composite building formwork.

[0010] Preferably, the storage mechanism includes two pairs of movable plates connected to the back side of the bottom layer in a rectangular shape, two groups of hinged rods are symmetrically hinged on the sides of the pair of movable plates located on the upper and lower sides away from each other through the first rotating rod and the first torsion spring, and two groups of hinged rods are symmetrically hinged on the sides of the pair of movable plates located on the left and right sides away from each other through the first rotating rod and the first torsion spring, the ends of the two groups of hinged rods away from the movable plates are respectively hinged to the two pairs of protective members through the second rotating rod and the second torsion spring, the hinged rods hinged on the movable plates located on the upper and lower sides are located on the upper side of the hinged rods hinged on the movable plates on the left and right sides, and the storage mechanism also includes two pushing units connected to the back side of the bottom layer, the two pushing units respectively push the two pairs of movable plates to move toward each other, the advantage of such a configuration is that the storage operation of the protective members can be conveniently completed, thereby improving the convenience and reliability of the template.

[0011] Preferably, the pushing unit includes two groups of fixed seats symmetrically fixedly connected to the back side of the bottom layer, two groups of guide rods are symmetrically fixedly connected between the side surfaces away from each other of the two groups of fixed seats and the inner side walls of the edging, each pair of two movable plates are symmetrically and movably sleeved on the outer circumferential surfaces of the two groups of guide rods, and two groups of first elastic members are symmetrically and fixedly connected between the side surfaces away from each other of the two pairs of movable plates and the side surfaces away from each other of the two groups of fixed seats. The advantage of such a setting is that the first protective plate and the second protective plate can naturally rotate during the pushing process of the first elastic member until they are in contact with the outer side surface of the edging, thereby further improving the storage and opening operations of the protective members, and further improving the convenience and reliability of the template.

[0012] Preferably, the protective member includes a first protective plate, the side of the first protective plate close to the movable plate and the end of the hinge rod are hinged by a first rotating rod and a first torsion spring, the first protective plate is in contact with the outer side of the edging, and the side of the first protective plate away from the hinge rod is connected to a second protective plate by an elastic telescopic unit, and the front end of the second protective plate is located on the front side of the front side of the contact layer. The advantage of such a setting is that the protective component can comprehensively protect the safety of the panel, effectively preventing the template from being damaged by collision and extrusion during disassembly, assembly and transportation, reducing the loss rate of the template, and greatly improving the reliability and practicality of the template.

[0013] Preferably, the elastic telescopic unit includes two groups of rods symmetrically and movably plugged into the side of the first protective plate away from the hinge rod, the two groups of rods are fixedly connected to the end away from the first protective plate and the side of the second protective plate, and two groups of second elastic members are symmetrically and fixedly connected between the sides of the first protective plate and the second protective plate that are close to each other. The advantage of such an arrangement is that the second protective plate can be moved stably by cooperating with the second elastic members, thereby ensuring the reliability of the buffering protection function.

[0014] Preferably, the storage mechanism also includes two pairs of limiting grooves which are rectangularly opened on the back side of the edging, the depth of the pair of limiting grooves located on the upper and lower sides is less than the depth of the pair of limiting grooves located on the left and right sides, the depth of the pair of limiting grooves located on the upper and lower sides is greater than the thickness of the first protective plate, and the depth of the pair of limiting grooves located on the left and right sides is greater than the sum of the thicknesses of the two first protective plates. The advantage of such a setting is that the rotation angle of the second protective plate toward the bottom layer can be limited by the limiting groove, thereby avoiding the second protective plate from rotating too much and causing trouble for the subsequent operation of rotating the second protective plate out of the internal range of the edging, further simplifying the protection operation of the template and improving the convenience and reliability of the template.

[0015] Preferably, a pair of slots are symmetrically provided on the inner side walls of the pair of limit slots located on the upper and lower sides and away from each other, and a pair of slots are symmetrically provided on the inner side walls of the pair of limit slots located on the left and right sides and away from each other, and the inner bottom walls of the pair of slots located on the upper and lower sides are above the inner bottom walls of the pair of slots on the left and right sides. The advantage of such an arrangement is that the second protective plate and the first protective plate are prevented from popping out from the internal range of the edging due to vibration when the template is transported and moved, thereby ensuring that the template can be smoothly transported and moved, thereby improving the practicability and reliability of the template.

[0016] Preferably, the thickness of the first protective plate is greater than that of the second protective plate, and the top and bottom surfaces of the first protective plate are respectively located on the upper and lower sides of the top and bottom surfaces of the second protective plate. The advantage of such a setting is that it ensures the reliability of storage and prevents the insertion rod, the first protective plate and the hinged rod from exceeding the internal range of the edging and affecting the stacking and handling of the template, thereby further improving the reliability and practicality of the template.

[0017] Preferably, the depth of the slot is not less than one third of the width of the second protective plate. The advantage of such a setting is that the limiting stability of the slot on the second protective plate can be ensured.

[0018] In summary, the present invention mainly has the following beneficial effects:

[0019] 1. By setting up the protective components, the two pairs of protective parts can be fitted and wrapped on the outer surface of the edging, so as to prevent the edging and the panel inside the edging from being squeezed and collided and damaged during disassembly and transportation, effectively reducing the loss rate of the template. At the same time, the protective parts can be stored in the internal space of the edging through the storage mechanism, so that when the template is used, the protective parts will not affect the normal operation of the template, and there is no need to remove the protective parts for separate storage, which greatly improves the practicality and convenience of the template.

[0020] 2. Through the set pushing unit, the storage operation of the protective piece can be completed by only pushing a pair of two movable plates in the direction towards each other, and at the same time, only the end of the second protective plate away from the first protective plate needs to be rotated to the back side of the back side of the edging, and then the first protective plate and the second protective plate can be pushed in the direction away from the bottom layer under the elastic force of the first elastic member, and then combined with the elastic force of the first torsion spring and the second torsion spring, the first protective plate and the second protective plate can naturally rotate during the pushing process of the first elastic member until they are attached to the outer surface of the edging, thereby further improving the storage and opening operations of the protective piece, and further improving the convenience and reliability of the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a first structural schematic diagram of the present invention;

[0022] Figure 2 is a second structural schematic diagram of the present invention;

[0023] Figure 3 is a third structural schematic diagram of the present invention;

[0024] Figure 4 is a fourth structural schematic diagram of the present invention;

[0025] Figure 5 is a first structural schematic diagram of the panel in the present invention;

[0026] Figure 6 is a second structural schematic diagram of the panel of the present invention;

[0027] Figure 7 yes Figure 4 The enlarged schematic diagram of point A in the middle;

[0028] Figure 8 yes Figure 2 A magnified schematic diagram of point B in the middle.

[0029] Figure numerals: 1. panel; 101. contact layer; 102. protective layer; 103. supporting layer; 104. bottom layer; 2. edging; 3. protective assembly; 31. protective member; 311. first protective plate; 312. elastic telescopic unit; 3121. plug rod; 3122. second elastic member; 313. second protective plate; 32. storage mechanism; 321. movable plate; 322. hinged rod; 323. pushing unit; 3231. fixing seat; 3232. guide rod; 3233. first elastic member; 33. limiting groove; 34. slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 8 A composite building formwork comprises a panel 1, wherein four sides of the panel 1, namely, upper, lower, left and right sides, are fixedly sleeved with an edge 2, the back side of the edge 2 is located at the rear side of the back side of the panel 1, and a protective component 3 for protecting the panel 1 and the edge 2 is provided on the panel 1;

[0032] The protective component 3 includes two pairs of protective parts 31 distributed in a rectangular shape, and the two pairs of protective parts 31 are respectively attached to the upper, lower, left and right sides of the edging 2. The protective component 3 also includes a storage mechanism 32 connected to the back of the panel 1. The storage mechanism 32 is used to pull the two pairs of protective parts 31 from the outer surface of the edging 2 to the back of the panel 1 and are located inside the edging 2.

[0033] refer to Figure 5 and Figure 6 The panel 1 includes a contact layer 101, a protective layer 102, and a bottom layer 104 of a support layer 103 which are pressed together in sequence from front to back. The bottom layer 104 is formed by a plurality of cross bars and a plurality of vertical bars intersecting and connecting the layers.

[0034] Specifically, the smooth and finished contact layer 101 is in direct contact with the concrete to ensure the smoothness of the surface of the concrete after molding. The protective layer 102 can prevent the supporting layer 103 from directly contacting the concrete and being damaged by corrosion. The supporting layer 103 and the bottom layer 104 are used to bear the load generated by the concrete to ensure that the concrete solidifies into a preset shape. In this way, the contact layer 101, the protective layer 102, and the bottom layer 104 of the supporting layer 103 cooperate with each other to ensure that the template is not easily damaged by corrosion while ensuring the smooth molding of the concrete. This can reduce the loss rate of the template and improve the reliability of the composite building template.

[0035] refer to Figure 1-Figure 4 The storage mechanism 32 includes two pairs of movable plates 321 connected to the back side of the bottom layer 104 in a rectangular shape, two groups of hinged rods 322 are symmetrically hinged on the sides away from each other of the pair of movable plates 321 located on the upper and lower sides through the first rotating rod and the first torsion spring, and two groups of hinged rods 322 are symmetrically hinged on the sides away from each other of the pair of movable plates 321 located on the left and right sides through the first rotating rod and the first torsion spring, one end of the two groups of hinged rods 322 away from the movable plates 321 is respectively hinged to the two pairs of protective members 31 through the second rotating rod and the second torsion spring, the hinged rods 322 hinged on the movable plates 321 located on the upper and lower sides are located on the upper side of the hinged rods 322 hinged on the movable plates 321 on the left and right sides, and the storage mechanism 32 also includes two pushing units 323 connected to the back side of the bottom layer 104, and the two pushing units 323 respectively push the two pairs of movable plates 321 to move toward each other.

[0036] Specifically, two pushing units 323 are used to push the two movable plates 321 toward each other, and the two pairs of movable plates 321 pull the two pairs of protective members 31 toward each other through two sets of hinged rods 322. In this way, under the limitation of the shape of the edging 2, the first protective plate 311 and the second protective plate 313 can be rotated to a position parallel to the panel 1 until they are turned into the inside of the edging 2 and the back side of the bottom layer 104, so that the storage operation of the protective members 31 can be completed conveniently, thereby improving the convenience and reliability of the template.

[0037] refer to Figure 3 and Figure 4 The pushing unit 323 includes two groups of fixed seats 3231 symmetrically fixedly connected to the back side of the bottom layer 104, two groups of guide rods 3232 are symmetrically fixedly connected between the side surfaces away from each other of the two groups of fixed seats 3231 and the inner side walls of the edging 2, each pair of two movable plates 321 are symmetrically and movably sleeved on the outer circumferential surfaces of the two groups of guide rods 3232, and two groups of first elastic members 3233 are symmetrically and fixedly connected between the side surfaces away from each other of the two pairs of movable plates 321 and the side surfaces away from the two groups of fixed seats 3231.

[0038] Specifically, it is only necessary to push a pair of two movable plates 321 in a direction toward each other to complete the storage operation of the protective member 31, and at the same time, it is only necessary to rotate the end of the second protective plate 313 away from the first protective plate 311 to the rear side of the back of the edging 2, and then the first protective plate 311 and the second protective plate 313 can be pushed in a direction away from the bottom layer 104 under the elastic force of the first elastic member 3233, and then combined with the elastic force of the first torsion spring and the second torsion spring, the first protective plate 311 and the second protective plate 313 can naturally rotate during the pushing process of the first elastic member 3233 until they are attached to the outer surface of the edging 2, thereby further improving the storage and opening operations of the protective member 31, and further improving the convenience and reliability of the template.

[0039] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 The protective member 31 includes a first protective plate 311, and the side of the first protective plate 311 close to the movable plate 321 and the end of the hinge rod 322 are hinged through a first rotating rod and a first torsion spring. The first protective plate 311 is in contact with the outer side of the edge 2, and the side of the first protective plate 311 away from the hinge rod 322 is connected to the second protective plate 313 through an elastic telescopic unit 312, and the front end of the second protective plate 313 is located on the front side of the front of the contact layer 101.

[0040] Specifically, the elastic telescopic unit 312 is used to elastically move the second protective plate 313 in a direction away from or close to the first protective plate 311, so that when the front side of the contact layer 101 of the template directly hits the ground, the front end of the second protective plate 313 will collide with the ground first. At the same time, the elastic telescopic unit 312 can play a buffering role, thereby ensuring that the front side of the contact layer 101 and the front side of the edging 2 will not be damaged by the collision, so that the protective component 3 can fully protect the safety of the panel 1, and effectively prevent the template from being damaged by collision and squeezing during disassembly and transportation, thereby reducing the loss rate of the template and greatly improving the reliability and practicality of the template.

[0041] refer to Figure 3 , Figure 4 and Figure 8 The elastic telescopic unit 312 includes two groups of rods 3121 that are symmetrically and movably plugged into the side of the first protective plate 311 away from the hinge rod 322. One end of the two groups of rods 3121 away from the first protective plate 311 is fixedly connected to the side of the second protective plate 313. Two groups of second elastic members 3122 are symmetrically and fixedly connected between the sides of the first protective plate 311 and the second protective plate 313 that are close to each other.

[0042] Specifically, the second protection plate 313 can be stably moved by cooperating with the second elastic member 3122 , thereby ensuring the reliability of the buffer protection function.

[0043] refer to Figure 3 , Figure 4 and Figure 8 The storage mechanism 32 also includes two pairs of limiting grooves 33 in a rectangular shape on the back side of the edging 2. The depth of the pair of limiting grooves 33 located on the upper and lower sides is less than the depth of the pair of limiting grooves 33 located on the left and right sides. The depth of the pair of limiting grooves 33 located on the upper and lower sides is greater than the thickness of the first protective plate 311, and the depth of the pair of limiting grooves 33 located on the left and right sides is greater than the sum of the thicknesses of the two first protective plates 311.

[0044] Specifically, the limiting groove 33 can limit the rotation angle of the second protection plate 313 toward the bottom layer 104, thereby preventing the second protection plate 313 from rotating too much and causing trouble in the subsequent operation of rotating the second protection plate 313 out of the internal range of the edging 2, further simplifying the protection operation of the template and improving the convenience and reliability of the template.

[0045] refer to Figure 8 A pair of slots 34 are symmetrically opened on the inner side walls away from the pair of limit slots 33 on the upper and lower sides, and a pair of slots 34 are symmetrically opened on the inner side walls away from the pair of limit slots 33 on the left and right sides. The inner bottom walls of the pair of slots 34 on the upper and lower sides are above the inner bottom walls of the pair of slots 34 on the left and right sides.

[0046] Specifically, by inserting the second protective plate 313 into the slot 34, the second protective plate 313 and the first protective plate 311 can be limited, preventing the second protective plate 313 and the first protective plate 311 from popping out from the inner range of the edging 2 due to vibration when the template is transported and moved, ensuring that the template can be transported and moved smoothly, thereby improving the practicality and reliability of the template.

[0047] refer to Figure 1 and Figure 2 The thickness of the first protective plate 311 is greater than the thickness of the second protective plate 313 , and the top surface and the bottom surface of the first protective plate 311 are located at the upper and lower sides of the top surface and the bottom surface of the second protective plate 313 respectively.

[0048] Specifically, after the second protection plate 313 is inserted into the slot 34, the side of the first protection plate 311 can fit with the inner wall of the limiting groove 33, so as to ensure that the protection member 31 and the hinged rod 322 are in the same plane, and ensure that the insertion rod 3121, the first protection plate 311 and the hinged rod 322 will not exceed the internal range of the edging 2, thereby ensuring the reliability of storage and avoiding the insertion rod 3121, the first protection plate 311 and the hinged rod 322 from exceeding the internal range of the edging 2 and affecting the stacking and transportation of the template, thereby further improving the reliability and practicality of the template.

[0049] refer to Figure 8 , the depth of the slot 34 is not less than one third of the width of the second protection plate 313 .

[0050] Specifically, the limiting stability of the slot 34 on the second protection plate 313 can be ensured.

[0051] Working principle: When the template is used for work, the two pairs of movable plates 321 are pushed in the direction of approaching each other. At this time, the two pairs of movable plates 321 respectively drive the two groups of hinged rods 322 and the protective member 31 to move in the direction of approaching each other. At the same time, under the limitation of the shape of the edging 2, the first protective plate 311 and the second protective plate 313 can be rotated to a position parallel to the panel 1 until they are turned into the inside of the edging 2 and the back side of the bottom layer 104, so that the storage operation of the protective member 31 can be completed conveniently, thereby improving the convenience and reliability of the template.

[0052] When the template needs to be moved, it is only necessary to rotate the end of the second protective plate 313 away from the first protective plate 311 to the rear side of the back side of the edging 2, and then the first protective plate 311 and the second protective plate 313 can be pushed in the direction away from the bottom layer 104 under the elastic force of the first elastic member 3233, and then combined with the elastic force of the first torsion spring and the second torsion spring, the first protective plate 311 and the second protective plate 313 can naturally rotate during the pushing process of the first elastic member 3233 until they are attached to the outer surface of the edging 2, thereby further improving the storage and opening operations of the protective member 31, and further improving the convenience and reliability of the template.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite building formwork, comprising a panel (1), characterized in that: The panel (1) is fixedly sleeved with an edge wrap (2) on four upper, lower, left and right side surfaces, the back side of the edge wrap (2) being located behind the back side of the panel (1), and the panel (1) is provided with a protective component (3) for protecting the panel (1) and the edge wrap (2); The protective component (3) comprises two pairs of protective members (31) distributed in a rectangular shape, the two pairs of protective members (31) being respectively attached to the upper, lower, left and right side surfaces of the edge wrapping (2), and the protective component (3) further comprises a storage mechanism (32) connected to the back of the panel (1), the storage mechanism (32) being used to pull the two pairs of protective members (31) from the outer side surface of the edge wrapping (2) to the back of the panel (1) and being located inside the edge wrapping (2).

2. A composite building formwork according to claim 1, characterized in that: The panel (1) comprises a contact layer (101), a protective layer (102), and a bottom layer (104) of a support layer (103) which are pressed together in sequence from front to back, and the bottom layer (104) is formed by a plurality of cross bars and a plurality of vertical bars intersecting and connecting each other.

3. A composite building formwork according to claim 2, characterized in that: The storage mechanism (32) comprises two pairs of movable plates (321) connected to the back of the bottom layer (104) in a rectangular shape, two sets of hinged rods (322) being symmetrically hinged on the side faces away from each other of the pair of movable plates (321) located on the upper and lower sides via a first rotating rod and a first torsion spring, and two sets of hinged rods (322) being symmetrically hinged on the side faces away from each other of the pair of movable plates (321) located on the left and right sides via a first rotating rod and a first torsion spring, the two sets of hinged rods (322) being away from the movable plates ( One end of the bottom layer (104) is hinged to the two pairs of protective members (31) through a second rotating rod and a second torsion spring, respectively; a hinge rod (322) hinged to the movable plates (321) located at the upper and lower sides is located on the upper side of a hinge rod (322) hinged to the movable plates (321) at the left and right sides; the storage mechanism (32) further comprises two pushing units (323) connected to the back side of the bottom layer (104); the two pushing units (323) respectively push the two pairs of movable plates (321) to move towards each other.

4. A composite building formwork according to claim 3, characterized in that: The pushing unit (323) comprises two groups of fixing seats (3231) symmetrically fixedly connected to the back side of the bottom layer (104); two groups of guide rods (3232) are symmetrically fixedly connected between the side surfaces away from each other of the two groups of fixing seats (3231) and the inner side wall of the edging (2); each pair of two moving plates (321) are symmetrically movably sleeved on the outer peripheral surfaces of the two groups of guide rods (3232); and two groups of first elastic members (3233) are symmetrically fixedly connected between the side surfaces away from each other of the two pairs of moving plates (321) and the side surfaces away from each other of the two groups of fixing seats (3231).

5. A composite building formwork according to claim 4, characterized in that: The protective member (31) comprises a first protective plate (311), the side of the first protective plate (311) close to the movable plate (321) and the end of the hinge rod (322) being hinged via a first rotating rod and a first torsion spring, the first protective plate (311) and the outer side of the hemming (2) being in contact with each other, the side of the first protective plate (311) away from the hinge rod (322) being connected to a second protective plate (313) via an elastic telescopic unit (312), the front end of the second protective plate (313) being located at the front side of the front face of the contact layer (101).

6. A composite building formwork according to claim 5, characterized in that: The elastic telescopic unit (312) comprises two groups of insertion rods (3121) symmetrically and movably plugged into the side of the first protection plate (311) away from the hinge rod (322), one end of the two groups of insertion rods (3121) away from the first protection plate (311) is fixedly connected to the side of the second protection plate (313), and two groups of second elastic members (3122) are symmetrically and fixedly connected between the adjacent sides of the first protection plate (311) and the second protection plate (313).

7. A composite building formwork according to claim 6, characterized in that: The storage mechanism (32) further comprises two pairs of limiting grooves (33) which are rectangularly formed and opened on the back side of the edge wrapping (2); the depth of the pair of limiting grooves (33) located on the upper and lower sides is smaller than the depth of the pair of limiting grooves (33) located on the left and right sides; the depth of the pair of limiting grooves (33) located on the upper and lower sides is greater than the thickness of the first protective plate (311); and the depth of the pair of limiting grooves (33) located on the left and right sides is greater than the sum of the thicknesses of the two first protective plates (311).

8. A composite building formwork according to claim 7, characterized in that: A pair of slots (34) are symmetrically provided on inner side walls away from the pair of limit slots (33) located on the upper and lower sides, and a pair of slots (34) are symmetrically provided on inner side walls away from the pair of limit slots (33) located on the left and right sides, and the inner bottom walls of the pair of slots (34) located on the upper and lower sides are above the inner bottom walls of the pair of slots (34) located on the left and right sides.

9. A composite building formwork according to claim 8, characterized in that: The thickness of the first protection plate (311) is greater than the thickness of the second protection plate (313), and the top surface and the bottom surface of the first protection plate (311) are located at the upper and lower sides of the top surface and the bottom surface of the second protection plate (313), respectively.

10. A composite building formwork according to claim 9, characterized in that: The depth of the slot (34) is not less than one third of the width of the second protection plate (313).

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