Evacuation platform plate

Abstract

The embodiment of the invention discloses an evacuation platform plate. According to one specific implementation mode, the evacuation platform plate comprises a pouring plate body and a composite covered edge, the pouring plate body is provided with at least two beam ends, the part between the at least two beam ends forms a main plate body of the pouring plate body, and the thickness of the beam ends is larger than or equal to that of the main plate body; each beam end of the pouring plate body is embedded in one composite covered edge, in the using state, every two adjacent evacuation platform plates are in butt joint through the included composite covered edges, each composite covered edge is fixedly connected to the corresponding platform plate support, and the platform plate supports are fixed to the wall of an evacuation scene. According to the embodiment, the cracking situation of the platform plate in the load test or use process can be reduced, beam and plate integration is achieved, materials are saved, the weight of the platform plate can be reduced, and therefore the burden caused to the duct piece is relieved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of tunnel evacuation platforms, and in particular to evacuation platform panels. Background Art

[0002] The evacuation platform can be used as a necessary tool to escape from the accident scene in the event of a flood, fire, train failure, or other sudden emergency in a subway tunnel, increasing the possibility of escape and the efficiency of evacuation in subway accidents. At present, the platform plate of the evacuation platform usually has no frame or uses a steel beam to form a beam-slab structure of the platform plate.

[0003] However, when using the above platform plate, the following technical problems often occur: during the manufacture of the platform plate without a frame, it will deform as the ABS plastic mold deforms after repeated use. This deformation is caused by the thermal deformation of the plastic mold due to the heat release of the cement hydration reaction and the stress and natural aging of the plastic mold. After the platform plate is manufactured and deformed with the mold, the contact surface cannot be completely fitted during the installation with the steel support, and there is a gap of about 1-3mm. This gap causes excessive local pressure at the contact point and stress concentration, and the platform plate will be more likely to crack during the load test; the platform plate using steel beams is heavy, which puts a greater burden on the pipe segments and also causes material waste.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the inventive concept and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Summary of the invention

[0005] The content of this disclosure is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] Some embodiments of the present disclosure provide an evacuation platform plate to solve one or more of the technical problems mentioned in the above background technology section.

[0007] In the first aspect, some embodiments of the present disclosure provide an evacuation platform board, including a cast board body and a composite edging, wherein the cast board body has at least two beam ends, and the portion between the at least two beam ends constitutes a main board body of the cast board body, and the thickness of the beam end is greater than or equal to the thickness of the main board body; each beam end of the cast board body is embedded in one of the composite edgings, and in use, two adjacent evacuation platform boards are butt-jointed via the composite edging, and each composite edging is fixedly connected to a corresponding platform board bracket, and the platform board bracket is fixed to a wall of the evacuation scene.

[0008] Optionally, a uniformly distributed steel mesh is provided inside the casting plate body, and the steel mesh is composed of crisscrossing steel bars.

[0009] Optionally, the upper surface of the main board body is provided with anti-slip protrusions.

[0010] Optionally, in use, two adjacent evacuation platform boards are fixedly connected to the same platform board bracket, and the platform board bracket is provided with two groups of bracket holes, and each group of bracket holes corresponds to one evacuation platform board.

[0011] Optionally, the composite edging is provided with upper and lower butting holes, the casting plate body is embedded in the composite edging, and a cavity is provided at a position corresponding to the hole. When in use, the fixing part passes through the hole and the cavity, and passes through the bracket hole on the corresponding platform plate bracket. When the fixing part is tightened, the part of the evacuation platform plate corresponding to the hole and the cavity is fixed on the platform plate bracket.

[0012] Optionally, at least two holes butting up and down are provided on the composite edging, and at least two cavities corresponding to the at least two holes are provided in the position where the casting plate body is embedded in the composite edging. In the use state, fixing parts are placed in each group of holes and cavities, and each fixing part passes through the corresponding bracket hole on the platform plate bracket.

[0013] Optionally, the casting plate body is cast in a casting mold using casting materials, and the casting materials include cement-based composite materials. The raw materials of the cement-based composite materials include: cement, steel fiber, steel bars, silica ash, mineral powder, quartz sand, water reducer, and clean water. Before casting, a composite edging is placed at each beam end mold position in the casting mold.

[0014] Optionally, the composite edging is a polymer composite material, the raw materials of which include glass fiber, resin, surface felt or non-woven fabric, and the composite edging is manufactured by pultrusion process.

[0015] Optionally, an embedded slider is placed in the hole of the above-mentioned composite edging, and the above-mentioned embedded slider is fixed in the cavity of the above-mentioned cast plate body. The above-mentioned embedded slider is a hollow structure connected up and down. When in use, the fixing part passes through the above-mentioned embedded slider and passes through the bracket hole on the corresponding platform plate bracket.

[0016] Optionally, the casting plate body is cast by using a casting mold. Before casting, a composite edging is placed at each beam end mold position in the casting mold, and embedded sliders are placed at the hole positions of the composite edging. In the cast evacuation platform plate, the casting plate body, the composite edging and the embedded sliders are an integrated structure.

[0017] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: through the evacuation platform panels of some embodiments of the present disclosure, the cracking of the platform panels during load testing or use can be reduced, the integration of beams and panels can be achieved, thereby saving materials, and the weight of the platform panels can be reduced, thereby reducing the burden on the pipe segments. The evacuation platform panels of some embodiments of the present disclosure include a cast plate body and a composite edging, wherein the cast plate body has at least two beam ends, and the portion between the at least two beam ends constitutes the main body of the cast plate body, and the thickness of the beam end is greater than or equal to the thickness of the main body; each beam end of the cast plate body is embedded in one of the composite edgings, and in use, two adjacent evacuation platform panels are butt-jointed by the included composite edging, and each composite edging is fixedly connected to a corresponding platform plate bracket, and the platform plate bracket is fixed to the wall of the evacuation scene. Also, because the beam ends of the cast plate body are embedded in the composite edging, the composite edging can play a role in reinforcing the beam ends. Also, because the thickness of the beam ends is greater than or equal to the thickness of the above-mentioned main plate body, the beam ends themselves can also play a role in strengthening, so that the beam and plate can be integrated without the use of steel beams, thereby saving materials and reducing the weight of the platform plate. In addition, because the platform plate is used to fix the frame of the evacuation platform plate bracket with a composite frame, the frame of the evacuation platform plate can be limited to a uniform shape by the composite frame, which is not affected by the deformation of the mold, thereby improving the fit with the bracket contact surface and reducing the gap between the frame and the bracket contact surface, so that the force on the frame can be more uniform, thereby reducing the cracking of the platform plate during load testing or use. In this way, the cracking of the platform plate during load testing or use can be reduced, the beam and plate can be integrated, thereby saving materials, and the weight of the platform plate can be reduced, thereby reducing the burden on the pipe segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0019] Figure 1 It is a schematic diagram of the structure of some embodiments of the evacuation platform plate of the present disclosure;

[0020] Figure 2 is a schematic diagram of a structure in which a plurality of evacuation platform panels are fixed on a platform panel bracket in some embodiments of the present disclosure;

[0021] Figure 3 is a schematic structural diagram of a casting mold for manufacturing an evacuation platform plate in some embodiments of the present disclosure;

[0022] Figure 4is a schematic diagram of the structure of the embedded slider in some embodiments of the present disclosure;

[0023] Figure 5 are three views of the embedded sliding block of some embodiments of the present disclosure;

[0024] Figure 6 is a cross-sectional view of a pre-embedded slider installed in a composite edge wrapping in some embodiments of the present disclosure;

[0025] Figure 7 is a schematic diagram of the structure of the embedded lifting slider of some embodiments of the present disclosure;

[0026] Figure 8 It is a three-view drawing of the embedded lifting slider of some embodiments of the present disclosure;

[0027] Fig. 9 is a cross-sectional view of a pre-buried lifting slider installed in a composite edge wrapping in some embodiments of the present disclosure;

[0028] Fig.10 is a scene diagram of a pouring and vibrating test production line for manufacturing an evacuation platform slab in some embodiments of the present disclosure;

[0029] Fig.11 is a scene diagram of a high temperature steam curing room during a test for curing an evacuation platform plate according to some embodiments of the present disclosure;

[0030] Fig.12 It is a test product picture of the evacuation platform board according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0031] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0032] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0033] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] Figure 1 It is a schematic structural diagram of some embodiments of the evacuation platform plate disclosed in the present invention. Figure 1 It includes a casting plate body 1, a composite edging 2, a beam end 11, a main plate body 12, a hole position 21 and a pre-embedded sliding block 3.

[0037] In some embodiments, the evacuation platform board may include a casting board body 1 and a composite edging 2. The casting board body 1 may be a flat plate body formed after the casting material is formed. The casting material may include but is not limited to reactive powder concrete. The casting board body 1 may have at least two beam ends 11. The beam end 11 may be the end of the board body that plays a supporting role in the casting board body 1. For example, the casting board body 1 may have two beam ends 11. The two beam ends 11 are symmetrically distributed in the casting board body 1. The portion between the at least two beam ends 11 may constitute the main board body 12 of the casting board body 1. The main board body 12 may be the main part of the casting board body 1. The area of ​​the main board body 12 is greater than the area of ​​the at least two beam ends 11 included in the casting board body 1. The thickness of the beam end 11 may be greater than or equal to the thickness of the main board body 12. Preferably, the thickness of the beam end 11 may be greater than the thickness of the main board body 12, so that the main board body 12 may present a concave shape, further reducing the weight of the evacuation platform board. For example, the thickness of the main plate body 12 may be 35 mm, and the thickness of the beam end 11 may be 50 mm.

[0038] In some embodiments, each beam end 11 of the casting plate body 1 can be embedded in one of the composite edges 2. The composite edges 2 can be a frame for wrapping the beam ends of the casting plate body. For example, the evacuation platform plate can have two composite edges 2. The composite edges 2 can be made of polymer composite materials, not metal. The composite edges 2 can be linear. For example, Figure 1In the embodiment, the vertical cross section of the composite edging 2 may be a "mouth" shaped structure with the right side partially open. The composite edging 2 is a flat linear structure in the longitudinal direction. Thus, the characteristics of good continuity, high precision, good electrical insulation and convenient post-processing of polymer composite materials can be utilized to provide a docking interface with good size and position between the platform plate and other steel structures, save grounding costs, protect the built-in steel mesh to reduce electrical corrosion, and can also be used as an external mold for the platform plate to flexibly adjust the length and size of the platform plate. Compared with the edging solution made of metal materials, the edging made of composite materials has excellent anti-corrosion performance, which can fundamentally solve the problem of rust on metal edging. In the use state, two adjacent evacuation platform plates are butt-jointed by the included composite edging. Each composite edging is fixedly connected to the corresponding platform plate bracket. The platform plate bracket can be a bracket used to support and fix the evacuation platform plate in the evacuation scene. The platform plate bracket can be fixed on the wall of the evacuation scene. The evacuation scene may include but is not limited to a subway tunnel. When the evacuation scenario is a subway tunnel, the platform plate bracket can be fixed on the wall of the pipe segment in the subway tunnel. The platform plate bracket can be a steel component, the steel component is coated with a galvanized layer, and the outermost layer can be coated with a fire retardant paint. The platform plate bracket can include wall fixings, platform plate fixings and diagonal braces. In use, the wall fixings are fixed to the wall, the platform plate fixings are connected to the wall fixings by bolts, the composite edging on the evacuation platform is fixed to the platform plate fixings by bolts, one end of the diagonal brace is fixed to the wall, and the other end is fixed to the platform plate fixings. Thus, the platform plate fixings, the diagonal braces and the wall can form a stable structure similar to a triangle, which can improve the stability of the support.

[0039] Optionally, a uniformly arranged steel mesh may be provided inside the casting slab body. The steel mesh may be composed of individual steel bars crisscrossed. For example, the steel mesh may be a grid-like structure. The staggered positions of the individual steel bars may be fixed by welding or binding. The steel mesh 3 may be placed in the casting mold before casting the evacuation platform slab. At least one end of the steel bars that intersect perpendicularly with the composite edging is arranged inside the above-mentioned composite edging. For example, the steel mesh may include individual steel bars perpendicular to the composite edging and individual steel bars parallel to the composite edging. The two ends of the individual steel bars perpendicular to the composite edging may be respectively arranged in the composite edging at the two beam ends. Thus, the strength of the evacuation platform slab may be improved by the steel mesh.

[0040] Optionally, the upper surface of the main body 12 may be provided with anti-skid protrusions. The anti-skid protrusions may be of any shape, specifically determined by the texture of the inner surface of the casting mold. Thus, the anti-skid performance of the evacuation platform board can be improved by the anti-skid protrusions.

[0041] Optionally, in use, two adjacent evacuation platform panels can be fixedly connected to the same platform panel bracket. Two groups of bracket holes can be provided on the platform panel bracket, and each group of bracket holes can correspond to an evacuation platform panel. The bracket holes can be holes provided on the platform panel bracket for fixing the composite edging of the evacuation platform panel. Specifically, the bracket holes can be provided on the platform panel fixing parts. Each group of bracket holes can be arranged vertically and coincide with the positions of the holes provided on the composite edging. As an example, refer to Figure 2 , Figure 2 It is a structural schematic diagram of multiple evacuation platform panels fixed on the platform panel bracket. Figure 2 It includes an evacuation platform plate 201 , an evacuation platform plate 202 , and a platform plate bracket 203 . Figure 2 In the embodiment, the composite edging on the right side of the evacuation platform board 201 and the composite edging on the left side of the evacuation platform board 202 are butted together and both are fixed on the platform board bracket 203. Thus, adjacent evacuation platform boards can be fixed on the same platform board bracket, thereby saving the amount of platform board brackets, and making the butted composite edging on the same plane, thereby improving the flatness of the ground spliced ​​by the evacuation platform boards.

[0042] Optionally, refer to Figure 1 , the above-mentioned composite edging 2 may be provided with holes 21 that are butted up and down. The above-mentioned casting plate body 1 is embedded in the above-mentioned composite edging 2, and a cavity may be provided at a position corresponding to the above-mentioned hole 21, which is used to communicate with the hole 21 in the composite edging 2 up and down. In the use state, the fixing part can pass through the above-mentioned hole 21 and the above-mentioned cavity, and pass through the bracket hole on the corresponding platform plate bracket. In the tightened state of the above-mentioned fixing part, the part of the above-mentioned evacuation platform plate corresponding to the above-mentioned hole 21 and the above-mentioned cavity is fixed on the above-mentioned platform plate bracket. The fixing part may be a component used to fix the above-mentioned evacuation platform plate from the hole in the composite edging to the platform plate bracket. For example, the fixing part may be a bolt. Thus, the fixing part used to fix the evacuation platform plate can be placed through the holes and cavities that are connected up and down.

[0043] Optionally, refer to Figure 1 , the composite edging 2 may be provided with at least two holes 21 that are butted up and down. The position where the casting plate body 1 is embedded in the composite edging 2 may be provided with at least two cavities corresponding to the at least two holes 21. In the use state, a fixing piece is placed in each set of holes and cavities, and each fixing piece passes through the corresponding bracket hole on the platform plate bracket. Thus, the evacuation platform plate can be fixed at multiple positions through multiple sets of holes and cavities to improve the stability of the evacuation platform plate.

[0044] Optionally, an embedded slider 3 may be placed in the hole of the composite edging 2. The embedded slider 3 may be a component that is pre-placed in the composite edging in the casting mold before casting, so as to realize the position taking during the casting process and the function of placing the fixing part after casting, so that there is no need to set a place-taking column that is easy to deform on the casting mold. The embedded slider 3 may be made of fiberglass or polyurethane, and may be formed by metal mold / compression molding (SMC process). The embedded slider 3 may be fixed in the cavity of the casting plate body 1. The embedded slider 3 may be a hollow structure connected up and down. The embedded slider 3 may be used to tie the composite edging 2, and may occupy a position in the casting mold before casting the platform plate. In the use state, the fixing part may pass through the embedded slider 3 and through the bracket hole position on the corresponding platform plate bracket. Optionally, a steel bar placement hole may also be provided in the middle position of the embedded slider 3. The steel bar placement holes can be used to place the ends of the steel bars in the steel mesh, so that they can be used to support the steel bars in the steel mesh, facilitate the unification of the placement position of the steel mesh, and avoid placing the steel mesh too high or too low during the pouring process.

[0045] Optionally, the casting plate body 1 can be cast by using a casting mold. Before casting, a composite edging 2 is placed at each beam end mold position in the casting mold, and a pre-embedded slider 3 is placed at the hole position of the composite edging 2. In the cast evacuation platform board, the casting plate body 1, the composite edging 2 and the pre-embedded slider 3 are an integrated structure. The casting mold can be a mold for making an evacuation platform board. The casting mold can include a bottom plate, a top plate and a frame. After the bottom plate, the top plate and the frame are assembled, a casting space for casting can be formed. The beam end mold position can be the position of the beam end in the casting mold for forming the evacuation platform board. As an example, the casting mold can refer to Figure 3 , Figure 3 It includes two composite edges 2, embedded sliders 3, steel mesh 4, embedded lifting sliders 5, frame 301, bottom plate 302, and top plate 303. The two composite edges 2 are respectively placed at the beam end mold position.

[0046] Figure 4 It is a schematic diagram of the structure of the embedded slider in some embodiments of the present disclosure. Figure 4 It includes a concave hole 31 , a first connecting hole 32 , a first protruding layer 33 , a boss 34 , a boss connecting hole 35 and a positioning protruding structure 36 .

[0047] Figure 5 3D is a three-view drawing of the embedded slider according to some embodiments of the present disclosure. Figure 5 A second raised layer 37 is included.

[0048] Figure 6 It is a cross-sectional view of some embodiments of the present disclosure in which the embedded slider is installed in the composite edging. Figure 6It includes a composite edging 2, a hole 21, a reinforcement bar 41, an embedded slider 3, a first protruding layer 33, a positioning protruding structure 36 and a second protruding layer 37.

[0049] Optionally, the middle section of the embedded slider 3 may include a boss 34, and the boss 34 is provided with at least one boss communication hole 35. The structure connected up and down in the embedded slider 3 may be a first communication hole 32. The molding method of the first communication hole 32 may include but is not limited to: mold direct molding, drilling or milling. The first communication hole 32 may be used to accommodate the stud part of the fixing member. The central axis of the boss communication hole 35 is perpendicular to the central axis of the first communication hole 32. One end of the steel bar used for the steel mesh in the evacuation platform board may pass through the boss communication hole 35. The boss communication hole 35 may be configured to fix the steel mesh before pouring. The boss communication hole 35 may play a role in supporting and fixing the steel bar, and then supporting and fixing the steel mesh. The end face size of the steel bar in the steel mesh may be smaller than the size of the boss communication hole 35. The vertical relationship may make the steel mesh positioned through the boss communication hole 35 and the evacuation platform board approximately parallel, so that the force of the steel mesh and the evacuation platform board can be more uniform.

[0050] Optionally, a concave hole 31 may be provided on the upper end surface of the embedded sliding block 3. The size of the concave hole 31 may be larger than the upper surface size of the first connecting hole 32. The concave hole 31 may be arranged above the first connecting hole 32. The concave hole 31 may be connected to the first connecting hole 32. And the axis of the concave hole 31 may be consistent with the axis of the first connecting hole 32. The concave hole 31 may be used to accommodate the nut portion of the fixing member.

[0051] Optionally, the upper end surface of the embedded slider 3 may be provided with a first raised layer 33. The size of the first raised layer 33 may be smaller than the size of the upper end surface of the embedded slider 3. The axis of the first raised layer 33 may be consistent with the recessed hole 31 and the first connecting hole 32. And the recessed hole 31 may pass through the first raised layer 33. The first raised layer 33 may be configured to be embedded in the hole at the upper end of the composite edging. When the embedded slider 3 is arranged on the composite edging 2, the first raised layer 33 may play a role in fixing the upper end of the embedded slider 3 in the hole at the upper end of the composite edging.

[0052] Optionally, the lower end surface of the embedded slider 3 may be provided with a second raised layer 37. The size of the second raised layer 37 may be smaller than the size of the lower end surface of the embedded slider 3. The axis of the second raised layer 37 may be consistent with the concave hole 31 and the first connecting hole 32. The second raised layer 37 may be configured to be embedded in the hole at the lower end of the composite edging. When the embedded slider 3 is arranged on the composite edging 2, the second raised layer 37 may play a role in fixing the lower end of the embedded slider 3 in the hole at the lower end of the composite edging.

[0053] Optionally, positioning protrusion structures 36 may be provided on both sides of the lower end of the embedded slider 3, and the positioning protrusion structures 36 may be configured to fit the lower end of the composite edging. For example, the positioning protrusion structures 36 on both sides of the lower end of the embedded slider 3 may fit closely to the closed side and the baffle side of the bottom surface of the composite edging 2. The positioning protrusion structures 36 may be used to mitigate the skewness of the embedded slider 3 when it slides into the composite edging 2.

[0054] Figure 4-6 The embedded sliders in the corresponding embodiments serve as an inventive point of the present disclosure, solving the technical problem that "when the protrusions on the platform plate mold used for forming the holes are deformed or damaged, the holes on the cast platform plate will also be deformed accordingly and cannot be embedded." Specifically, the factors that cause the holes on the cast platform plate to be deformed accordingly and cannot be embedded are as follows: the platform plate mold is usually provided with a protruding portion for forming the bolt hole, and the protruding portion is more easily deformed or damaged. When the protrusions on the platform plate mold used for forming the holes are deformed or damaged, the holes on the cast platform plate will also be deformed accordingly and cannot be embedded. If the above factors are solved, the effect of eliminating the protruding structure required for the mold to form the holes on the platform plate and reducing the deformation of the holes on the platform plate can be achieved. In order to achieve this effect, the embodiment of the present disclosure introduces the structure of the embedded slider. On the one hand, the embedded slider not only provides the installation hole position of the fixing part for the cast evacuation platform plate, but also can position the steel mesh and tie the composite frame, and it has multiple functions. On the other hand, the embedded slider is an independent molding structure, which eliminates the protruding structure of the bolt hole on the molding platform plate mold, simplifies the platform plate mold structure, and reduces the deformation of the hole position on the platform plate.

[0055] Figure 7 It is a schematic diagram of the structure of the embedded lifting slider in some embodiments of the present disclosure. Figure 7 It includes a pre-buried lifting slider 5, a second connecting hole 51, a first lifting protrusion layer 52, a lifting boss 53 and a lifting boss connecting hole 54.

[0056] Figure 8 3D is a three-view drawing of the embedded lifting slider of some embodiments of the present disclosure. Figure 5A second raised layer 55 is included.

[0057] Fig. 9 It is a cross-sectional view of some embodiments of the present disclosure in which the embedded lifting slider is installed in the composite edging. Fig. 9 It includes a composite edging 2, a reinforcement bar 41, a pre-embedded lifting slider 5, a lifting hole 22, a first lifting protrusion layer 52 and a second protrusion layer 55.

[0058] Optionally, the composite edging 2 may also be provided with lifting holes 22 that are butted up and down. The casting plate body is embedded in the composite edging, and a cavity is provided at a position corresponding to the lifting hole. The lifting hole 22 may be provided with a pre-embedded lifting slider 5. The material and molding method of the pre-embedded lifting slider 5 may refer to the material and molding method of the pre-embedded slider. The pre-embedded lifting slider 5 may be a hollow structure connected up and down. The structure connected up and down in the pre-embedded lifting slider 5 is a second connecting hole 51. The second connecting hole 51 may be configured to fix bolts for lifting.

[0059] Optionally, the area of ​​the lower end surface of the embedded lifting slider 5 may be larger than the area of ​​the upper end surface of the embedded lifting slider 5. The size of the second connecting hole 51 may be smaller than the size of the first connecting hole 32. The volume and weight of the embedded lifting slider 5 are both smaller than those of the embedded slider 3. Thus, it can save materials.

[0060] The embedded lifting slider 5 may be provided with a lifting boss 53 including a lifting boss communicating hole 54. One end of the steel bar 41 of the steel mesh may pass through the lifting boss communicating hole 54. The lifting boss communicating hole 54 is configured to fix the steel mesh before pouring.

[0061] The upper end surface of the embedded lifting slider 5 may be provided with a first lifting protrusion layer 52. The lower end surface of the embedded lifting slider 5 may be provided with a second lifting protrusion layer 55. The first lifting protrusion layer 52 may be embedded in the lifting hole at the upper end of the composite edging 2, and the second lifting protrusion layer 55 may be embedded in the lifting hole at the lower end of the composite edging 2.

[0062] Figure 7-9The embedded lifting sliders in the corresponding embodiments serve as an inventive point of the present disclosure, solving the technical problem that "when lifting the platform plate, the platform plate is lifted by the connecting holes in the embedded slider, and the surface in the connecting holes that contacts the lifting equipment will be deformed, resulting in the inability of subsequent fixings to be embedded in the connecting holes in the embedded slider." Specifically, the factors that cause the inability of subsequent fixings to be embedded in the connecting holes in the embedded slider are as follows: when lifting the platform plate, the platform plate is lifted by the connecting holes in the embedded slider, and the surface in the connecting holes that contacts the lifting equipment will be deformed, resulting in the inability of subsequent fixings to be embedded in the connecting holes in the embedded slider. If the above factors are solved, the effect of not affecting the embedding of the fixings into the connecting holes in the embedded slider can be achieved. In order to achieve this effect, the embodiments of the present disclosure propose a pre-embedded lifting slider that can be specifically used to place bolts for lifting, and does not need to be placed in the embedded slider for lifting, thereby not affecting the embedding of the fixings into the connecting holes in the embedded slider.

[0063] Optionally, the casting plate body 1 can be cast in a casting mold using a casting material. The casting material can include a cement-based composite material. The raw materials of the cement-based composite material can include but are not limited to: cement, steel fiber, steel bar, silica fume, mineral powder, quartz sand, water reducer, and clean water. Before casting, a composite edging can be placed at each beam end mold position in the casting mold.

[0064] Optionally, the composite edging 2 may be a polymer composite material. The raw materials of the polymer composite material may include but are not limited to glass fiber, resin, surface felt or non-woven fabric. The composite edging is made by pultrusion. For example, the composite edging may be made in the following manner: glass fiber and surface felt or non-woven fabric are arranged together and immersed in a resin colloid, and then sent to a mold for preforming, followed by pultrusion molding and curing treatment, and then sent to a cutting device after traction to cut according to the required length to obtain the composite edging.

[0065] Optionally, the evacuation platform plate can be prefabricated in the following manner:

[0066] The first step is to measure each raw material through the digital mixing station according to the preset raw material ratio information. The raw materials may include dry materials and wet materials. The dry materials may include but are not limited to cement, steel fiber, steel bar, silica fume, mineral powder, quartz sand, and the wet materials may include but are not limited to water reducer and clean water. The preset raw material ratio information may include the proportion of each raw material. The preset raw material ratio information may be pre-set. Therefore, the automatic batching and feeding of each raw material can be realized through the CNC digital mixing station.

[0067] The second step is to put the above dry materials into a mixer for stirring. In practice, the mixer can be controlled to stir for a first preset mixing time. For example, the first preset mixing time can be 120 seconds. In actual operation, the first preset mixing time can be adjusted according to the uniformity of mixing. For example, if it is not mixed, the preset mixing time of the dry materials can be extended by 30s to 60s. It is also possible to use a visual detection algorithm to identify whether the dry materials are stirred evenly by taking an image of the mixer. If not stirred evenly, stirring can be continued until it is identified that the dry materials are stirred evenly.

[0068] The third step is to add the above wet materials into the above mixer and stir them evenly.

[0069] The fourth step is to wet mix the mixture in the mixer. In practice, the mixture in the mixer can be mixed for a second preset mixing time. For example, the second preset mixing time can be 5 minutes. In practice, the mixing time can be appropriately extended or shortened according to the workability of the mixture. The main engine speed of the mixer can be greater than or equal to 45r / min to achieve the effects of enhanced power, uniform mixing, no clumping of steel fibers, and fast mixing speed.

[0070] The fifth step is to pour the mixed material into a pre-prepared pouring mold. In the pouring mold, a composite edge is placed at each beam end mold position. During the pouring process, the mixed material is gradually filled in the pouring space formed by the composite edge and the inside of the pouring mold.

[0071] The sixth step is to weigh the mixed material poured into the casting mold during the casting process.

[0072] Step 7. If the weight of the poured mixed material does not reach the preset weight, continue pouring.

[0073] In the eighth step, if the weight of the poured mixed material exceeds the preset weight, the mixed material exceeding the preset weight is shoveled out from the pouring mold so that the weight of the remaining mixed material is the preset weight. In this way, the weight of the poured mixed material can be uniformly controlled, thereby achieving uniform control of the weight of the formed evacuation platform board.

[0074] In the ninth step, when the weight of the mixed material in the casting mold reaches the preset weight, the casting mold with the mixed material is transferred to a vibration bed, wherein the vibration bed can be a device for vibrating.

[0075] The tenth step is to control the vibration bed to vibrate the mixed material in the casting mold according to the preset vibration bed motor speed and vibration time. For example, the vibration bed motor speed can be between 1500 and 3000 times / min. The vibration time can be between 1 and 2 minutes. When the vibration acceleration of the stirring material is consistent with the vibration bed, jumping vibration can be avoided as much as possible, energy loss can be reduced, and noise can be reduced.

[0076] In the eleventh step, after the vibration is completed, the casting mold with the mixed material is sent to the static stop room and static stop for the first preset time. Wherein, a temperature control device is provided in the static stop room. The temperature control device can be a device for controlling the temperature. The temperature control device can include: a temperature sensor, a heating device, and a cooling device. The working temperature of the static stop room can be a first preset temperature. For example, the first preset temperature can be 40°C. The first preset time can be 24 hours.

[0077] Step 12: After the static stop is completed, the mixed material in the casting mold is formed into an initial evacuation platform board, and the initial evacuation platform board is demoulded and stacked. Here, stacking can be the operation of stacking the demoulded initial evacuation platform board on the bracket. The stacked initial evacuation platform board can be referred to Figure 5 .

[0078] In the thirteenth step, each of the initial evacuation platform panels that have been palletized is sent to the high-temperature steaming chamber for steam curing for the second preset time. The high-temperature steaming chamber may be provided with a temperature control device, and the room temperature rise rate of the high-temperature steaming chamber may be less than or equal to the first preset rate. The maximum room temperature of the high-temperature steaming chamber may be less than or equal to the second preset temperature. The second preset temperature may be greater than the first preset temperature. The second preset time may be greater than or equal to the first preset time. For example, the first preset rate may be 15°C / h. The second preset temperature may be 75°C. The second preset time may be 48 hours.

[0079] In the fourteenth step, after the steam curing of each initial evacuation platform board is completed, the high-temperature steam curing chamber is subjected to a cooling treatment. Among them, the temperature difference between the room temperature of the high-temperature steam curing chamber and the outdoor environment after the cooling treatment is completed is less than or equal to the preset temperature difference. The above temperature difference can be the absolute value of the temperature difference. The cooling rate of the cooling treatment is less than or equal to the second preset rate. For example, the preset temperature difference can be 0°C. For another example, the preset temperature difference can be 0.5°C. The second preset rate can be 15°C / h. In practice, the cooling device included in the temperature control equipment in the high-temperature steam curing chamber can be used for cooling treatment. Therefore, controlling the cooling rate can avoid the initial evacuation platform board from releasing more heat during the cooling process, thereby reducing the pores generated inside the evacuation platform board caused by cooling and heat dissipation, and improving the uniformity of the material inside the evacuation platform board.

[0080] Step 15: Naturally cure each initial evacuation platform board for a third preset time. In practice, each initial evacuation platform board can be naturally cured at room temperature for a third preset time. For example, the third preset time can be 12 days.

[0081] Step 16: Sampling and testing the above-mentioned initial evacuation platform boards to obtain test results. In practice, at least one initial evacuation platform board can be arbitrarily selected from the above-mentioned initial evacuation platform boards for testing. The above-mentioned initial evacuation platform boards can also include pre-determined initial evacuation platform boards for testing. Then, the initial evacuation platform boards for testing can be subjected to a compressive strength test to obtain the compressive strength of each initial evacuation platform board for testing as the test result.

[0082] Step 17: When the above test results meet the preset test conditions, each initial evacuation platform board that has completed natural curing is an evacuation platform board that meets the use conditions. For example, the preset test condition may be that the compressive strength of each initial evacuation platform board used for testing reaches the design value. For example, the design value may be 120MPa. When the compressive strength reaches 120MPa, it means that the product meets the use conditions and can be put into use.

[0083] Therefore, the automatic batching and feeding of each raw material can be realized through the CNC digital mixing station, and the casting mold after pouring can be automatically transferred to the vibrating bed for automatic vibration, which improves the automation level of the production of evacuation platform boards. The automatic batching and feeding can also better control the amount of each raw material and improve the standard uniformity of the production quality of the evacuation platform boards. It should be noted that the type and ratio of raw materials are different, and the time and temperature required for each stage are also different. The preset time can be determined through preliminary test experiments.

[0084] As an example, the pouring and vibrating test production line for the evacuation platform slab can be referred to Fig.10 . Fig.10 It includes a mixer 1001 and a vibrating bed 1002. The maintenance workshop during the test can refer to Fig.11 , Fig.11 The high temperature curing chamber 1101 is provided with various evacuation platform boards. Fig.12 , Fig.12 This includes individual evacuation platform panels produced in small test batches.

[0085] The above-mentioned various embodiments of the present disclosure have the following beneficial effects: through the evacuation platform panels of some embodiments of the present disclosure, the cracking of the platform panels during load testing or use can be reduced, the integration of beams and panels can be achieved, thereby saving materials, and the weight of the platform panels can be reduced, thereby reducing the burden on the pipe segments. The evacuation platform panels of some embodiments of the present disclosure include a cast plate body and a composite edging, wherein the cast plate body has at least two beam ends, and the portion between the at least two beam ends constitutes the main body of the cast plate body, and the thickness of the beam end is greater than or equal to the thickness of the main body; each beam end of the cast plate body is embedded in one of the composite edgings, and in use, two adjacent evacuation platform panels are butt-jointed by the included composite edging, and each composite edging is fixedly connected to a corresponding platform plate bracket, and the platform plate bracket is fixed to the wall of the evacuation scene. Also, because the beam ends of the cast plate body are embedded in the composite edging, the composite edging can play a role in reinforcing the beam ends. Also, because the thickness of the beam ends is greater than or equal to the thickness of the above-mentioned main plate body, the beam ends themselves can also play a role in strengthening, so that the beam and plate can be integrated without the use of steel beams, thereby saving materials and reducing the weight of the platform plate. In addition, because the platform plate is used to fix the frame of the evacuation platform plate bracket with a composite frame, the frame of the evacuation platform plate can be limited to a uniform shape by the composite frame, which is not affected by the deformation of the mold, thereby improving the fit with the bracket contact surface and reducing the gap between the frame and the bracket contact surface, so that the force on the frame can be more uniform, thereby reducing the cracking of the platform plate during load testing or use. In this way, the cracking of the platform plate during load testing or use can be reduced, the beam and plate can be integrated, thereby saving materials, and the weight of the platform plate can be reduced, thereby reducing the burden on the pipe segment.

[0086] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. An evacuation platform plate, characterized in that: The evacuation platform plate includes a cast plate body and a composite edge wrapping, wherein: The casting plate body has at least two beam ends, the portion between the at least two beam ends constitutes the main plate body of the casting plate body, and the thickness of the beam end is greater than or equal to the thickness of the main plate body; Each beam end of the cast plate body is embedded in one of the composite edgings. When in use, two adjacent evacuation platform plates are butt-jointed via the composite edging. Each composite edging is fixedly connected to a corresponding platform plate bracket, and the platform plate bracket is fixed to a wall of the evacuation scene.

2. The evacuation platform board according to claim 1, characterized in that: The interior of the casting plate body is provided with a uniformly arranged steel mesh, and the steel mesh is composed of crisscrossed steel bars.

3. The evacuation platform board according to claim 1, characterized in that: The upper surface of the main board body is provided with anti-skid protrusions.

4. The evacuation platform board according to claim 1, characterized in that: In use, two adjacent evacuation platform boards are fixedly connected to the same platform board bracket. The platform board bracket is provided with two groups of bracket holes, and each group of bracket holes corresponds to one evacuation platform board.

5. The evacuation platform board according to claim 1, characterized in that: The composite edging is provided with upper and lower butting holes, the casting plate body is embedded in the composite edging, and a cavity is provided at a position corresponding to the hole. When in use, the fixing part passes through the hole and the cavity, and passes through the bracket hole on the corresponding platform plate bracket. When the fixing part is in a tightened state, the part of the evacuation platform plate corresponding to the hole and the cavity is fixed to the platform plate bracket.

6. The evacuation platform board according to claim 5, characterized in that: At least two groups of holes butted against each other are arranged on the composite edging, and at least two cavities corresponding to the at least two groups of holes are arranged in the position where the casting plate body is embedded in the composite edging. When in use, fixings are placed in each group of holes and cavities, and each fixing passes through the corresponding bracket hole on the platform plate bracket.

7. The evacuation platform board according to claim 1, characterized in that: The casting plate body is cast in a casting mold using casting materials. The casting materials include cement-based composite materials. The raw materials of the cement-based composite materials include: cement, steel fiber, steel bars, silica fume, mineral powder, quartz sand, water reducer, and clean water. Before casting, a composite edging is placed at each beam end mold position in the casting mold.

8. The evacuation platform board according to claim 1, characterized in that: The composite edge wrapping is a polymer composite material, the raw materials of which include glass fiber, resin, surface felt or non-woven fabric, and the composite edge wrapping is manufactured by pultrusion process.

9. The evacuation platform board according to claim 6, characterized in that: An embedded slider is placed in the hole of the composite edging, and the embedded slider is fixed in the cavity of the cast plate body. The embedded slider is a hollow structure connected up and down. When in use, the fixing part passes through the embedded slider and passes through the bracket hole on the corresponding platform plate bracket.

10. The evacuation platform board according to claim 9, characterized in that: The casting plate body is cast by using a casting mold. Before casting, a composite edging is placed at each beam end mold position in the casting mold, and a pre-embedded slider is placed at the hole position of the composite edging. In the cast evacuation platform plate, the casting plate body, the composite edging and the pre-embedded slider are an integrated structure.

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