Automatically controlled lightweight flood gate with no threshold

Abstract

The utility model relates to an automatic control light weight no threshold flood prevention door belongs to the related technical field of civil air defence equipment, including: door frame, door frame at least includes door frame bottom plate, and door frame bottom plate is flush with the bottom surface of mouth portion structure and sets up, and door frame bottom plate sets up door frame sealing surface, door leaf is light weight structure door leaf, and door leaf is hinged to set up relative to mouth portion structure, and door leaf sets up door leaf sealing surface, and door leaf sealing surface is plane structure and door leaf sealing surface is not higher than the bottom surface of other parts of door leaf, under the door leaf closed state, door leaf sealing surface and door frame sealing surface closely contact and form the air -tight cooperation structure. Adopt full plane no threshold door leaf cooperation structure, and the threshold contact surface is full plane structure, and the door leaf contact surface of door leaf bottom is full plane structure, can make the door leaf and the contact pressure deviation between threshold of sealing <5%. Door leaf includes front panel, honeycomb interlayer and rear panel, and the specific gravity of honeycomb interlayer is high, and the honeycomb interlayer structure of aluminium realizes the quality reduction 70% simultaneously, and the tensile strength is promoted to 185MPa.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of civil air defense equipment, and more particularly to an automatic control light-weight no-threshold flood gate. BACKGROUND

[0002] Traditional flood gates are mainly divided into pure steel structures or steel + concrete structures, and have structural defects such as heavy structure, easy rust, and inconvenient transportation and installation. In addition, in some application occasions requiring flood prevention or high protection and sealing requirements, such as underground building entrances, civil air defense projects, etc., the traditional flood gates also have many problems. For example, in order to meet the protection and sealing requirements, many flood gates are provided with door thresholds (the reason for setting the door threshold is that the manufacturing precision of the traditional flood gate is low, and only by relying on the door threshold can the sealing between the door leaf and the ground be realized), and because the door threshold is set on the ground, it brings great inconvenience to the passing of personnel and vehicles. In addition, some existing no-threshold flood gates have deficiencies in structural strength, flood prevention effect, and reliability of driving mode, and when facing a larger water pressure, sealing failure is prone to occur.

[0003] Through investigation, it is found that the traditional flood gate has the following multiple technical defects: 1. The bottom door threshold structure of the flood gate leads to a 30% decrease in water flow resistance efficiency, and there is a risk of tripping for personnel, and vehicle passage is also quite complex; 2. The self-weight of the door body is too large (> 3 tons), which leads to a large driving mechanism and low opening and closing speed (> 180 seconds). SUMMARY

[0004] (I) Technical problem

[0005] In summary, how to provide a no-threshold flood gate with relatively light weight has become a problem to be solved by those skilled in the art.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the present application provides the following technical scheme:

[0008] The present application provides an automatic control light-weight no-threshold flood gate. In the present application, the automatic control light-weight no-threshold flood gate comprises:

[0009] A door frame is fixedly arranged on the mouth structure, and the door frame comprises at least a door frame bottom plate, the door frame bottom plate is arranged flush with the bottom surface of the mouth structure, the upper side of the door frame bottom plate comprises at least a door frame sealing surface penetrating the width direction of the door frame bottom plate, the door frame sealing surface is a planar structure, and in the use state, the door frame sealing surface is the highest plane on the door frame bottom plate;

[0010] A door leaf, the door leaf is a light structure door leaf, the door leaf is hingedly arranged relative to the mouth structure, a bottom surface of the door leaf at least comprises a door leaf sealing surface penetrating the width direction of the door leaf, the door leaf sealing surface is a planar structure and the door leaf sealing surface is not higher than other parts of the bottom surface of the door leaf;

[0011] In the door leaf closing process, the door leaf sealing surface and the door frame sealing surface are in sliding friction fit;

[0012] In the door leaf closed state, the door leaf sealing surface and the door frame sealing surface are in close contact and form an air-tight fit structure.

[0013] Preferably, in the automatic control light non-door sill flood-proof door provided by the application, the door frame comprises the door frame bottom plate, the door frame side plate and the door frame top plate, and the door frame bottom plate, the door frame side plate and the door frame top plate form a mouth-shaped structure.

[0014] Preferably, in the automatic control light non-door sill flood-proof door provided by the application, the door frame bottom plate, the door frame side plate and the door frame top plate are all provided with an extension plate extending outward relative to the door frame; all the extension plates, at least the extension plates provided on the door frame side plate and the door frame top plate, are located in the same plane and form an air-tight fit structure with the door leaf in the door leaf closed state.

[0015] Preferably, in the automatic control light non-door sill flood-proof door provided by the application, on the side of the door leaf for hinging with the mouth structure, the upper area from the middle of the door leaf is a hinging rotation power area, and the lower area from the middle of the door leaf is a hinging rotation support area; corresponding to the hinging rotation power area, a hydraulic spiral swing cylinder driven by hydraulic pressure is fixedly arranged on the mouth structure, the hydraulic spiral swing cylinder is hinged with the door leaf and is used for providing power for the hinging rotation of the door leaf; corresponding to the hinging rotation support area, the door leaf is hinged with the mouth structure through a support assembly, and the door leaf is rotationally supported through the support assembly.

[0016] Preferably, in the automatic control light non-door sill flood-proof door provided by the application, corresponding to the hinging rotation support area, the door leaf is hinged with the mouth structure through a limiting assembly, and the rotation of the door leaf is limited through the limiting assembly.

[0017] Preferably, in the automatic control light non-door sill flood-proof door provided by the application, the door leaf comprises a front panel, a honeycomb sandwich and a rear panel; wherein the front panel is a planar panel structure, the rear panel is a planar panel structure, the front panel is brazed with the honeycomb sandwich, and the rear panel is brazed with the honeycomb sandwich.

[0018] Preferably, in the automatic control light-weight flood-proof door without threshold provided by the present application, in the honeycomb sandwich, the honeycomb sandwich is composed of a plurality of uniformly distributed honeycomb monomers; the honeycomb monomer at least includes a shuttle-shaped honeycomb monomer; along the axial direction of the shuttle-shaped honeycomb monomer, the shuttle-shaped honeycomb monomer includes a first hexagonal prism, an intermediate expansion body and a second hexagonal prism, the first hexagonal prism and the second hexagonal prism are coaxially arranged hexagonal cylinder structures with the same diameter, and the two ends of the intermediate expansion body at least include first transition bevels which are arranged obliquely relative to the axis of the shuttle-shaped honeycomb monomer and used for bearing shear force, and the middle section of the intermediate expansion body is a hexagonal cylinder structure coaxially arranged with the second hexagonal prism and with a diameter larger than that of the second hexagonal prism.

[0019] Preferably, in the automatic control light-weight flood-proof door without threshold provided by the present application, the honeycomb monomer at least includes a dumbbell-shaped honeycomb monomer; along the axial direction of the dumbbell-shaped honeycomb monomer, the dumbbell-shaped honeycomb monomer includes a third hexagonal prism, an intermediate contraction body and a fourth hexagonal prism, the third hexagonal prism and the fourth hexagonal prism are coaxially arranged hexagonal cylinder structures with the same diameter, the two ends of the intermediate contraction body at least include second transition bevels which are arranged obliquely relative to the axis of the dumbbell-shaped honeycomb monomer and used for bearing shear force, and the middle section of the intermediate contraction body is a hexagonal cylinder structure coaxially arranged with the fourth hexagonal prism and with a diameter smaller than that of the fourth hexagonal prism.

[0020] Preferably, in the automatic control light-weight flood-proof door without threshold provided by the present application, the diameters of the first hexagonal prism, the second hexagonal prism, the third hexagonal prism and the fourth hexagonal prism are the same; the angles of the first transition bevel and the second transition bevel are complementary.

[0021] Preferably, in the automatic control light-weight flood-proof door without threshold provided by the present application, the shuttle-shaped honeycomb monomer and the dumbbell-shaped honeycomb monomer are in contact with each other at the side edges.

[0022] (Three) beneficial effects

[0023] The application provides an automatic control light weight no threshold flood prevention door. The automatic control light weight no threshold flood prevention door comprises a door frame, the door frame is fixedly arranged on a mouth structure, the door frame at least comprises a door frame bottom plate, the door frame bottom plate is arranged in a flush manner with the bottom surface of the mouth structure, the upper side of the door frame bottom plate at least comprises a door frame sealing surface penetrating through the width direction of the door frame bottom plate, the door frame sealing surface is a plane structure, and in the use state, the door frame sealing surface is the highest plane on the door frame bottom plate; a door leaf, the door leaf is a light weight structure door leaf, the door leaf is hingedly arranged relative to the mouth structure, the bottom surface of the door leaf at least comprises a door leaf sealing surface penetrating through the width direction of the door leaf, the door leaf sealing surface is a plane structure and the door leaf sealing surface is not higher than other parts of the bottom surface of the door leaf; in the door leaf closing process, the door leaf sealing surface and the door frame sealing surface are in sliding friction cooperation; in the door leaf closing state, the door leaf sealing surface and the door frame sealing surface are in close contact and form an air-tight cooperation structure. In the application, the full plane no threshold door leaf cooperation structure is adopted, the threshold contact surface is a full plane structure, the door leaf contact surface at the bottom of the door leaf is a full plane structure, so that the sealing contact pressure deviation between the door leaf and the threshold is less than 5%. The door leaf comprises a front panel, a honeycomb interlayer and a rear panel, the specific strength of the honeycomb interlayer reaches 356 MPa·cm 3 / g, the aluminum honeycomb interlayer structure realizes 70% weight reduction while the tensile strength is increased to 185 MPa. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings accompanying the specification of this application serve to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof serve to explain the present application and do not constitute an improper limitation of the present application. Among them:

[0025] Figure 1 It is a front view structural schematic diagram of the automatic control light weight no threshold flood prevention door in the embodiment of the present application;

[0026] Figure 2 It is a top view structural schematic diagram of the automatic control light weight no threshold flood prevention door in the embodiment of the present application;

[0027] Figure 3 It is a side view structural schematic diagram of the automatic control light weight no threshold flood prevention door in the embodiment of the present application;

[0028] Figure 4 It is Figure 2 An enlarged schematic diagram of the structure at circle A in the figure;

[0029] Figure 5 It is Figure 3 An enlarged schematic diagram of the structure at circle B in the figure;

[0030] Figure 6 It is a structural schematic diagram of the hydraulic spiral swing cylinder in the embodiment of the present application;

[0031] Figure 7 Structure diagram of the honeycomb sandwich in the embodiment of the present application;

[0032] Figure 8 Structure diagram of the honeycomb sandwich in the embodiment of the present application; Figure 7 Enlarged structure diagram of the structure at circle C.

[0033] In the present application, Figures 1 to 8 Correspondence between the names of the components and the reference numerals is as follows:

[0034] Door frame bottom plate 1, door frame side plate 2, door frame top plate 3, door leaf 4, hydraulic spiral swing cylinder 5, support assembly 6, limiting assembly 7, first hexagonal body 8, intermediate contraction body 9, second hexagonal body 10, matching insertion slot 11, matching insertion strip 12, inclined surface seal 13. DETAILED DESCRIPTION

[0035] The present application will be described in detail below with reference to the drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than limitation of the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made in the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present application encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.

[0036] In the description of the present application, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and do not require that the present application must be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. The term "connected" or "connected" used in the present application should be understood broadly, for example, it can be fixed connection or detachable connection; it can be directly connected or indirectly connected through intermediate components, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0037] Please refer to Figures 1 to 8 , wherein, Figure 1 Front view structure diagram of the automatic control lightweight no-threshold flood-proof door in the embodiment of the present application; Figure 2 Front view structure diagram of the automatic control lightweight no-threshold flood-proof door in the embodiment of the present application; Figure 3 Front view structure diagram of the automatic control lightweight no-threshold flood-proof door in the embodiment of the present application; Figure 4 Front view structure diagram of the automatic control lightweight no-threshold flood-proof door in the embodiment of the present application; Figure 2 Enlarged structure diagram of the structure at circle A. Figure 5 Front view structure diagram of the automatic control lightweight no-threshold flood-proof door in the embodiment of the present application; Figure 3An enlarged schematic view of the structure at the middle circle B; Figure 6 A structural schematic view of a hydraulic spiral swing cylinder in an embodiment of the present application; Figure 7 A structural schematic view of a honeycomb sandwich in an embodiment of the present application; Figure 8 A structural schematic view of a honeycomb sandwich in an embodiment of the present application; Figure 7 An enlarged schematic view of the structure at the middle circle C.

[0038] The present application provides an automatic control light weight no threshold flood prevention door, in the present application, the automatic control light weight no threshold flood prevention door mainly includes two parts structure: 1, door frame, door frame is used to be fixedly arranged to the mouth structure, specifically, the mouth structure refers to the entrance of tunnel, passageway, underground shelter, garage and other civil air defense engineering buildings, generally, the mouth structure is a concrete structure, it can be a circular arch mouth structure, can also be a rectangular mouth structure. The outline structure of the door frame provided by the present application is set according to the mouth structure, the outline shape of the door frame is consistent with the outline shape of the mouth structure but the size is slightly smaller, the door frame adopts a direct mounting mode, that is, any anchoring structure does not need to be pre-buried to the mouth structure, only needs to be assembled to the mouth structure (in the mouth structure) on site, then punch and fixed by expansion bolts, the installation mode can be implemented on the premise that: the door leaf 4 adopts lightweight design, the overall quality of the door leaf 4 is lighter, so the bearing capacity requirement of the door frame is lower.

[0039] In one specific embodiment of the present application, the mouth structure is preferably a rectangular mouth structure, based on the preferred embodiment, the door frame adopts a rectangular door frame structure design, the door frame at least includes a door frame bottom plate 1 (and a door frame side plate 2 and a door frame top plate 3, the door frame side plate 2 is provided with two, the two door frame side plates 2 are vertically arranged on both sides of the mouth structure, the door frame top plate 3 is arranged at the top of the mouth structure, and the door frame bottom plate 1 is arranged at the bottom of the mouth structure).

[0040] In the prior art, the influence on the passing of people or vehicles is mainly caused by the threshold structure, the role of the door frame bottom plate 1 in the present application is basically the same as that of the threshold structure, both of which enable the door frame to form a complete frame structure and realize the air-tight cooperation structure with the door leaf 4 after the door leaf 4 is closed. In the present application, although the door frame bottom plate 1 has the same function as the traditional threshold structure, there is an essential difference between the door frame bottom plate 1 and the traditional threshold structure in structure, that is, the door frame bottom plate 1 is arranged flush with the bottom surface (which can be understood as the ground) of the mouth structure, the upper side of the door frame bottom plate 1 at least includes a door frame sealing surface penetrating the width direction of the door frame bottom plate 1, and the door frame sealing surface is a planar structure and the sealing surface is not lower than other parts of the door frame bottom plate 1. The above-mentioned structure design has various implementation manners, for example: 1, the door frame bottom plate 1 adopts a stepped structure, the door frame bottom plate 1 is arranged on the ground, and the highest plane thereof is the door frame sealing surface; 2, the door frame bottom plate 1 adopts a planar plate structure, an equal-height groove is arranged on the bottom surface of the door frame bottom plate 1 according to the overall thickness of the door frame bottom plate 1, and the door frame bottom plate 1 is fixedly installed in the equal-height groove, so that the door frame bottom plate 1 is flush with the ground (or slightly higher than the ground).

[0041] The present application installs the door leaf 4 (the door leaf 4 is preferably fixedly arranged on the mouth structure) relative to the door frame and / or the mouth structure, the door leaf 4 can be in a single-leaf single-opening mode or a double-leaf double-opening mode. When the single-leaf single-opening mode is adopted, only the air-tight cooperation between the door leaf 4 and the door frame needs to be considered, and when the double-leaf double-opening mode is adopted, not only the air-tight cooperation between the door leaf 4 and the door frame needs to be considered, but also the air-tight cooperation between the two door leaves after the two door leaves are closed. Specifically, when the double-leaf double-opening mode structure is adopted, the present application is provided with a cooperation structure on the opposite sides of the two door leaves (the sides abutting against each other after the two door leaves are closed), the cooperation structure includes a cooperation inclined surface, a cooperation slot 11 and a cooperation plug 12, the cooperation inclined surface, the cooperation slot 11 and the cooperation plug 12 can be integrated on one structure body, the structure body is provided with two and symmetrically arranged on the sides of the two door leaves 4, the cooperation plug 12 on one of the door leaves 4 can abut against the sealing strip arranged in the cooperation slot 11 on the other door leaf 4, the inclined surface sealing 13 is arranged on the cooperation inclined surface of one of the structure bodies, and the inclined surface sealing 13 can be pressed between the cooperation inclined surfaces of the two structure bodies after the two door leaves 4 are closed.

[0042] In the present application, the door leaf 4 is a light-weight structure door leaf. In the conventional technology, the door leaf adopts a pure steel door structure or a steel + concrete structure, which causes the whole door leaf to be very heavy, and the heavy door leaf will have many defects. In order to reduce the weight of the door leaf 4, the present application adopts a light-weight structure door leaf, the light-weight structure is obtained by optimizing the internal structure of the door leaf 4, and the mass of the door leaf 4 is reduced to the maximum extent on the premise of ensuring the impact resistance.

[0043] The door leaf 4 is hingedly arranged relative to the mouth structure, and specifically, the door leaf 4 is also hingedly arranged relative to the door frame. Corresponding to the structure of the door frame bottom plate 1, the bottom surface of the door leaf 4 at least comprises a door leaf sealing surface penetrating the width direction of the door leaf, the door leaf sealing surface is a planar structure and the door leaf sealing surface is not higher than other parts of the bottom surface of the door leaf 4. The door leaf sealing surface can be an inverted stepped structure or a planar structure. The structural configuration between the door frame and the door leaf 4 is that, during the closing process of the door leaf 4, the door leaf sealing surface and the door frame sealing surface are in sliding frictional cooperation; in the closed state of the door leaf 4, the door leaf sealing surface and the door frame sealing surface are in close contact and form an air-tight cooperation structure.

[0044] For the door frame, the door frame comprises a door frame bottom plate 1, a door frame side plate 2 and a door frame top plate 3, and the door frame bottom plate 1, the door frame side plate 2 and the door frame top plate 3 form a mouth-shaped structure (which is then fitted onto the mouth structure and then fixed by expansion bolts). In the door frame bottom plate 1, the door frame side plate 2 and the door frame top plate 3, the end-to-end connection mode is adopted when connecting the components (the door frame bottom plate 1, the door frame side plate 2 and the door frame top plate 3), and after the end alignment, the fixed connection between the components can be achieved by welding, or a right-angle connecting piece + bolt can be used for fixed connection, or any technology and structure capable of achieving vertical fixed connection between plates in the prior art can be applied to the present application.

[0045] After the door leaf 4 is closed, the door leaf bottom surface and the door frame bottom plate 1 form an air-tight cooperation structure, in order to ensure the air-tightness of other parts (both sides and the top) of the door leaf 4, the present application is provided with an extension plate extending outward relative to the door frame on the door frame bottom plate 1, the door frame side plate 2 and the door frame top plate 3, and in all the extension plates, at least the extension plates provided on the door frame side plate 2 and the door frame top plate 3 are located in the same plane and form an air-tight cooperation structure with the door leaf 4 in the closed state of the door leaf 4. Further, based on the provision of the extension plate, the present application can be provided with a mounting groove on the extension plate, the mounting groove forms an inverted U-shaped structure, and a sealing rubber strip is arranged in the mounting groove, so that through the sealing rubber strip and the extension plate, the air-tight cooperation between the door leaf 4 and the door frame can be achieved.

[0046] For the lightweight design of the door leaf 4, the present application adopts the following concept: the door leaf 4 comprises a front panel, a honeycomb sandwich and a rear panel; the front panel is a planar panel structure, the rear panel is a planar panel structure, the front panel is brazed to the honeycomb sandwich, and the rear panel is brazed to the honeycomb sandwich. By providing the honeycomb sandwich, the overall weight of the door leaf 4 is maximally reduced under the premise of ensuring the impact resistance of the door leaf 4.

[0047] Furthermore, in the honeycomb sandwich layer, the honeycomb sandwich layer is composed of multiple honeycomb cells evenly distributed; the honeycomb cell includes at least a spindle-shaped honeycomb cell; in the spindle-shaped honeycomb cell, along the axial direction of the spindle-shaped honeycomb cell, the spindle-shaped honeycomb cell includes a first hexagonal prism 8, an intermediate expansion body and a second hexagonal prism 10, the first hexagonal prism 8 and the second hexagonal prism 10 are hexagonal cylindrical structures with the same diameter and coaxially arranged, the two ends of the intermediate expansion body include at least a first transition inclined edge that is inclined relative to the axis of the spindle-shaped honeycomb cell and is used to bear shear force, and the middle section of the intermediate expansion body is a hexagonal cylindrical structure with a diameter greater than that of the second hexagonal prism 10 and coaxially arranged with the second hexagonal prism 10. Furthermore, the cell includes at least a dumbbell-shaped cell; in the dumbbell-shaped cell, along the axial direction of the dumbbell-shaped cell, the dumbbell-shaped cell includes a third hexagonal prism, an intermediate contraction body 9, and a fourth hexagonal prism. The third and fourth hexagonal prisms are hexagonal cylindrical structures with the same diameter and coaxially arranged. The two ends of the intermediate contraction body 9 include at least a second transitional inclined edge that is inclined relative to the axis of the dumbbell-shaped cell and is used to bear shear force. The middle section of the intermediate contraction body 9 is a hexagonal cylindrical structure with a diameter smaller than that of the fourth hexagonal prism and coaxially arranged with the fourth hexagonal prism.

[0048] For the intermediate expansion body or intermediate contraction body 9, since it is provided with a transition bevel, the angle of inclination of the transition bevel relative to the axis of the honeycomb unit is between 30° and 45°. The provision of the transition bevel not only enables the entire honeycomb unit to have frontal impact resistance (when the door 4 is closed, the impact force directly facing the door 4 or understood as perpendicular to the door 4 is the frontal impact force, and the ability to resist the frontal impact force is the frontal impact resistance), but also has a certain deformation ability in the shear direction (in the direction perpendicular to the frontal impact force), and this deformation ability is the shear resistance. Through the above structural design, when the door leaf 4 is subjected to a large instantaneous shock wave (the impact force generated by the shock wave is greater than the design impact resistance of the door leaf 4), all the intermediate expansion bodies or intermediate contraction bodies 9 in the honeycomb interlayer will deform in the shear direction under the force. In this way, the deformation of the honeycomb interlayer absorbs a large amount of impact energy, ensuring that the entire door leaf 4 will not undergo large deformation (or even no deformation). At the same time, the deformation of the honeycomb interlayer allows the front panel, back panel and door edge of the door leaf 4 to bear the impact force, and the remaining small part of the impact energy is evenly distributed among the various parts of the door leaf 4. This ensures the impact resistance of the door leaf 4, while also achieving the lightweighting of the door leaf 4.

[0049] For spindle-shaped and dumbbell-shaped honeycomb monomers, the intermediate expansion body or intermediate contraction body 9 can be formed by the wall thickness of the middle section of the honeycomb monomer, or the entire honeycomb monomer can be formed by turning or stamping metal materials, or by metal 3D printing technology.

[0050] Further, the diameters of the first hexagonal prism 8, the second hexagonal prism 10, the third hexagonal prism and the fourth hexagonal prism are the same; the angles of the first transition bevel and the second transition bevel are complementary.

[0051] Further, the shuttle-shaped honeycomb monomer is in contact with the side of the dumbbell-shaped honeycomb monomer.

[0052] In the present application, the lightweight design of the door leaf 4 is realized, so the present application also puts forward a new structure design for the installation of the door leaf 4: on the side of the door leaf 4 used for being hinged with the mouth structure, the area from the middle of the door leaf 4 to the upper area is a hinged rotation power area, and the area from the middle of the door leaf 4 to the lower area is a hinged rotation support area; corresponding to the hinged rotation power drive, the present application is fixedly provided with a hydraulic screw swing cylinder 5 driven by hydraulic pressure on the mouth structure, the hydraulic screw swing cylinder 5 is hinged with the door leaf 4, and is used for providing power for the hinged rotation of the door leaf 4; corresponding to the hinged rotation support area, the door leaf 4 is hinged with the mouth structure through a support assembly 6, and the door leaf 4 is rotationally supported through the support assembly 6; corresponding to the hinged rotation support area, the door leaf 4 is hinged with the mouth structure through a limiting assembly 7, and the rotation of the door leaf 4 is limited through the limiting assembly 7.

[0053] The support assembly 6 has the following structure: including a mounting plate, the mounting plate is a flat plate structure, the mounting plate is fixed on the mouth structure through expansion bolts, a support seat is fixedly arranged on the mounting plate through bolts, the support seat includes a horizontally arranged support plate, and a bearing seat is fixedly arranged on the support plate; a T-shaped component is arranged on the side frame of the door leaf 4, the T-shaped component includes a vertical plate and a horizontal plate, the vertical plate is fixedly connected with the side frame of the door leaf 4, the horizontal plate is perpendicular to the middle part of the vertical plate, and the horizontal plate is matched with the bearing seat to apply a supporting force to the middle part of the door leaf 4.

[0054] The limiting assembly 7 has the following structure: including a mounting plate, the mounting plate is a flat plate structure, the mounting plate is fixed on the mouth structure through expansion bolts, a limiting plate is fixedly arranged on the mounting plate through bolts, two shaft mounting plates are arranged on the limiting plate in a height direction, L-shaped components are arranged on the side frame of the door leaf 4, a limiting rotating plate is fixedly arranged between the two L-shaped components, the limiting rotating plate is arranged between the two shaft mounting plates, and the upper shaft mounting plate, the limiting rotating plate and the lower shaft mounting plate are connected through a door shaft.

[0055] The specific structure design of the present application is as follows:

[0056] For the door leaf 4 structure: a composite sandwich structure is adopted, including a front panel (outer skin), a rear panel (inner skin) and a honeycomb sandwich. Among them, the outer skin is 7A04-T6 aviation aluminum with a thickness of 4mm, and the Vickers hardness is 2150HV. A transition layer is provided between the outer skin and the honeycomb sandwich, which is used to realize impact buffering. The transition layer is a 2mm thick aramid fiber / epoxy resin prepreg with a surface density of 480g / m 2 . The honeycomb sandwich is a 5056 aluminum structure, and the cell size of the honeycomb unit is Ф6mm*50mm (diameter 6mm, height 50mm). The inner skin is a 3mm thick 6063-T5 aluminum plate, and the surface is laser textured (Ra=12.5um).

[0057] Inside the door leaf 4, without affecting the arrangement of other structures inside the door leaf 4, 8 T-shaped reinforcing ribs are arranged transversely, with a cross-sectional size of 30*50mm. Four door frame type composite beams are arranged longitudinally, and the composite beams are filled with aluminum silicate ceramic fiber. A 10mm thick steel plate bushing is added in the hinge seat area, connected by HUCK rivets. The door body adopts an aluminum honeycomb sandwich structure, including two layers of aluminum alloy panels and an aluminum honeycomb sandwich in the middle. The aluminum honeycomb sandwich is composed of a plurality of hexagonal aluminum honeycomb units arranged closely and firmly connected with the inner and outer aluminum alloy panels by brazing process. This structure makes the door body light in weight while having high strength and stiffness, capable of bearing large water pressure and impact force. The present application adopts a threshold-free design, and the bottom of the door leaf 4 is in plane contact with the bottom plate 1 of the door frame. For the driving of the door leaf 4, the present application adopts a hydraulic spiral swing cylinder driving system, which mainly consists of a hydraulic station, a hydraulic spiral swing cylinder, a transmission connecting rod, etc. The hydraulic station provides power for the whole system, and high-pressure oil is delivered to the hydraulic spiral swing cylinder through the oil pipe. In the hydraulic spiral swing cylinder, the piston moves linearly and rotates under the action of hydraulic oil, thereby driving the output shaft connected with the spiral rod to rotate. The output shaft is connected with the door body through the transmission connecting rod, and the rotary motion is converted into the opening and closing action of the door body. The hydraulic spiral swing cylinder has the advantages of compact structure, large output torque and smooth operation, which can ensure the reliable opening and closing of the door body under various working conditions. A plurality of sealing structures are adopted between the door leaf 4 and the door frame, and rubber sealing strips are also arranged around the door body. The sealing strips are made of water-resistant and weather-resistant rubber materials, which have good elasticity and sealing performance. When the door is closed, the door body extrudes the sealing strip, making it tightly fit with the door frame, further improving the sealing performance of the door and effectively preventing water and air leakage.

[0058] Specifically, the specific parameters of the drive system of the door leaf 4 are as follows: 1, the hydraulic spiral swing cylinder is a double-blade swing structure, the swing angle is 270°, the built-in planetary roller screw has a lead of 12mm, the transmission efficiency is >92%, the rated torque is 8500N·m, the working pressure is 21MPa, and the leakage is <0.1mL / min (under a pressure difference of 16MPa).

[0059] In the present application, the convenience of the no-step design: avoids the safety hazards such as tripping caused by the threshold, and also facilitates the handling and other operations of the equipment. The advantages of the aluminum honeycomb sandwich structure: the door body with the aluminum honeycomb sandwich structure has the characteristics of light weight and high strength, compared with the traditional door body material, the door body weight can be effectively reduced, the requirements for the installation foundation are reduced, and the impact resistance and compression resistance of the door body are improved, and the service life of the door body is prolonged. The reliability of the hydraulic spiral swing cylinder drive: the hydraulic spiral swing cylinder drive system has the advantages of large output torque, stable operation, fast response speed, etc., which can ensure that the door body is quickly and accurately opened and closed under different water pressures and harsh environments, and improve the reliability and safety of the flood prevention door. Good sealing performance: the design of multiple sealing structures ensures the sealing effect of the door from the bottom to the periphery, effectively prevents the intrusion of water and air, and meets the strict requirements of flood prevention and protection sealing.

[0060] From the above structural design, the present application provides an automatic control light-weight no-step flood prevention door. The automatic control light-weight no-step flood prevention door comprises: a door frame, the door frame is fixedly arranged on a mouth structure, and the door frame at least comprises a door frame bottom plate 1, the door frame bottom plate 1 is arranged flush with the bottom surface of the mouth structure, and the upper side of the door frame bottom plate 1 at least comprises a door frame sealing surface penetrating the width direction of the door frame bottom plate 1, the door frame sealing surface is a plane structure and the sealing surface is not lower than other parts of the door frame bottom plate 1; a door leaf 4, the door leaf 4 is a light-weight door leaf 4, and the door leaf 4 is hingedly arranged relative to the mouth structure, the bottom surface of the door leaf 4 at least comprises a door leaf sealing surface penetrating the width direction of the door leaf, the door leaf sealing surface is a plane structure and the door leaf sealing surface is not higher than other parts of the bottom surface of the door leaf 4; in the closing process of the door leaf 4, the door leaf sealing surface and the door frame sealing surface are in sliding friction cooperation; in the closed state of the door leaf 4, the door leaf sealing surface and the door frame sealing surface are in close contact and form an airtight cooperation structure.

[0061] While existing technologies also employ honeycomb structures, traditional brazed aluminum honeycomb suffers from anisotropy. This invention, however, utilizes a novel honeycomb unit structure that achieves isotropy, improving strength while reducing weight and cost. The commonly used dimensions of the honeycomb unit in this invention are as follows: cell (single honeycomb unit) wall thickness 1.5mm, 25mm*25mm variable cross-section hexagon; panel thickness on both sides of the honeycomb interlayer is 3mm; honeycomb interlayer height is 114mm; the honeycomb interlayer and its side panels form a sandwich panel with a total thickness of 120mm. The core layer (honeycomb interlayer) and panels of the sandwich panel are both made of 6061 aluminum, with a compressive strength of 7.5MPa, tensile strength of 185MPa, yield strength of 140MPa, elastic modulus of 68.9 GPa, and Poisson's ratio of 0.33.

[0062] The innovative points of this invention are summarized as follows:

[0063] 1. The door leaf adopts a fully flat, threshold-free door leaf mating structure. The threshold contact surface is a fully flat structure, and the bottom contact surface of door leaf 4 is a fully flat structure, which can ensure that the sealing contact pressure deviation between door leaf 4 and threshold is less than 5%.

[0064] 2. Door leaf 4 includes a front panel, a honeycomb interlayer, and a rear panel. The honeycomb interlayer has a specific strength of 356 MPa·cm. 3 / g, the aluminum honeycomb sandwich structure achieves a 70% reduction in weight while increasing the tensile strength to 185MPa;

[0065] 3. The hydraulic spiral swing cylinder is installed on the door frame and can drive the door hinge used to realize the hinge of the door leaf 4. The drive structure is compact and can realize the integration of door body and drive. In addition, the use of hydraulic spiral swing cylinder 5 reduces the opening and closing time to less than 25 seconds and reduces the installation space by 60%.

[0066] 4. The sealing structure used in this invention can achieve IP68 waterproof rating;

[0067] 5. The present invention is equipped with a control system, which works in conjunction with sensors to monitor the opening and closing of door 4, thereby achieving automated control of door 4. The control system is modular, has detection and automatic control functions, and can support unattended automatic response.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatically controlled, lightweight, threshold-free floodproof door, characterized in that, include: A door frame is used to be fixedly installed on an opening structure. The door frame includes at least a door frame base plate, which is flush with the bottom surface of the opening structure. The upper side of the door frame base plate includes at least a door frame sealing surface that extends through the width of the door frame base plate. The door frame sealing surface is a planar structure, and in use, the door frame sealing surface is the highest plane on the door frame base plate. The door leaf is a lightweight structure door leaf, which is hinged relative to the opening structure. The bottom surface of the door leaf includes at least a door leaf sealing surface that extends through the width of the door leaf. The door leaf sealing surface is a planar structure and is not higher than other parts of the bottom surface of the door leaf. During the closing process of the door leaf, the sealing surface of the door leaf and the sealing surface of the door frame are in sliding friction fit; When the door is closed, the door sealing surface is in close contact with the door frame sealing surface to form an airtight fit structure.

2. The automatic control lightweight threshold-free floodproof door according to claim 1, characterized in that, The door frame includes a bottom plate, a side plate, and a top plate, which together form a U-shaped structure.

3. The automatic control lightweight threshold-free floodproof door according to claim 2, characterized in that, An extension plate extending outward relative to the door frame is provided on the bottom plate of the door frame, the side plate of the door frame, and the top plate of the door frame; All of the extension plates, including at least the extension plates disposed on the door frame side plate and the door frame top plate, are located in the same plane and form an airtight fit structure with the door leaf when the door leaf is closed.

4. The automatic control lightweight threshold-free floodproof door according to claim 1, characterized in that, On the side of the door leaf used for hinged connection with the opening structure, the area from the middle of the door leaf upward is the hinge rotation power area, and the area from the middle of the door leaf downward is the hinge rotation support area. Corresponding to the hinged rotation power zone, a hydraulic spiral swing cylinder driven by hydraulic pressure is fixedly installed on the opening structure. The hydraulic spiral swing cylinder is hinged to the door leaf and is used to provide power for the hinged rotation of the door leaf. Corresponding to the hinged rotation support area, the door leaf is hinged to the opening structure through a support assembly, and the support assembly provides rotational support for the door leaf.

5. The automatic control lightweight threshold-free floodproof door according to claim 4, characterized in that, Corresponding to the hinged rotation support area, the door leaf is hinged to the opening structure through a limiting component, and the rotation of the door leaf is limited by the limiting component.

6. The automatic control lightweight threshold-free floodproof door according to claim 1, characterized in that, The door panel includes a front panel, a honeycomb interlayer, and a rear panel; The front panel is a flat panel structure, the rear panel is a flat panel structure, the front panel is brazed to the honeycomb interlayer, and the rear panel is brazed to the honeycomb interlayer.

7. The automatic control lightweight threshold-free floodproof door according to claim 6, characterized in that, In the honeycomb interlayer, the honeycomb interlayer is composed of multiple honeycomb cells evenly distributed; The cell unit includes at least a spindle-shaped cell unit; Along the axial direction of the spindle-shaped honeycomb unit, the spindle-shaped honeycomb unit includes a first hexagonal prism, an intermediate expansion body, and a second hexagonal prism. The first hexagonal prism and the second hexagonal prism are hexagonal cylindrical structures with the same diameter and coaxially arranged. The two ends of the intermediate expansion body include at least a first transition inclined edge that is inclined relative to the axis of the spindle-shaped honeycomb unit and is used to bear shear force. The middle section of the intermediate expansion body is a hexagonal cylindrical structure with a diameter greater than that of the second hexagonal prism and coaxially arranged with the second hexagonal prism.

8. The automatic control lightweight threshold-free floodproof door according to claim 7, characterized in that, The cell unit includes at least a dumbbell-shaped cell unit; Along the axial direction of the dumbbell-shaped honeycomb cell, the dumbbell-shaped honeycomb cell includes a third hexagonal prism, an intermediate constriction body, and a fourth hexagonal prism. The third hexagonal prism and the fourth hexagonal prism are hexagonal cylindrical structures with the same diameter and coaxially arranged. The two ends of the intermediate constriction body include at least a second transitional inclined edge that is inclined relative to the axis of the dumbbell-shaped honeycomb cell and is used to bear shear force. The middle section of the intermediate constriction body is a hexagonal cylindrical structure with a diameter smaller than that of the fourth hexagonal prism and coaxially arranged with the fourth hexagonal prism.

9. The automatic control lightweight threshold-free floodproof door according to claim 8, characterized in that, The first hexagonal prism, the second hexagonal prism, the third hexagonal prism, and the fourth hexagonal prism have the same diameter; The angles of the first transition hypotenuse and the second transition hypotenuse are complementary.

10. The automatic control lightweight threshold-free floodproof door according to claim 9, characterized in that, The spindle-shaped honeycomb unit is in contact with the side of the dumbbell-shaped honeycomb unit.

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