Civil air defense door opening and closing linkage surface accumulated water automatic cleaning device

Abstract

The invention relates to the technical field of civil air defense doors, in particular to a civil air defense door opening and closing linkage surface accumulated water automatic cleaning device which comprises a left door leaf, a right door leaf, a door leaf driving mechanism, a lifting assembly and the like. The sealing strip is expanded outwards and forms circumferential sealing and gap compensation sealing with the lower door frame; before the door leaf is opened, the lifting assembly drives the sealing strip to be separated from the lower door frame, opening and closing resistance is reduced, and sealing piece abrasion is reduced; in the opening process of the door leaf under the action of the driving mechanism, the lifting assembly synchronously drives the cleaning structure to enable the sponge strip to be attached to the ground, and residual accumulated water in the door area is continuously pushed and scraped along the opening track and guided to the lower water outlet; in the door closing process, the cleaning structure is automatically lifted and reset under the action of one-way limiting and reset elastic pieces, and reverse water carrying and secondary diffusion are avoided; the device realizes linkage control of strong sealing during door closing, separation before door opening and cleaning during door opening, so that the manual cleaning burden is obviously reduced, and the use reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of air defense door technology, specifically to an automatic ground water cleaning device that is linked to the opening and closing of an air defense door. Background Technology

[0002] Civil defense engineering entrances, pedestrian passages, and ancillary rooms typically use civil defense doors as separation and protection components. In wartime or under sudden disaster conditions, they must simultaneously meet the requirements of protection, airtightness, and passage organization. When encountering conditions such as rainstorms and flooding, urban backflow of water, rising water levels in underground spaces, or poor fire drainage, water can easily seep in through weak paths such as gaps at the bottom of the door and joints between the door and the frame, causing water accumulation in the door area and tunnel, equipment dampness and failure, and corrosion and mold growth of the structure and decorative layers. This can affect personnel passage, evacuation, and subsequent support capabilities, and even reduce the airtightness and reliability of the project. Therefore, improving the waterproof and water-blocking capabilities of civil defense doors, ensuring the rapid restoration of passage after water blockage, and reducing maintenance burden are of great safety significance and engineering application value.

[0003] Chinese patent document (publication number: CN218581486U) discloses a waterproof air-raid shelter door, including a wall, a sealing frame on the front side of the wall, a door body connected to the front side of the wall via hinges, the rear side of the door body contacting the sealing frame, a water-blocking mechanism riveted to the bottom of the front side of the door body, and a water tank bolted to the top of the front side of the door body. Water pumps are bolted to both sides of the top of the water tank. This invention possesses the advantages of strong flame retardant performance and waterproof function, solving the problems of existing air-raid shelter doors where, during fire, the surface cannot be water-cooled, easily affecting the flame retardant performance. Furthermore, due to their simple structure and lack of a waterproof feature, the door seams cannot be sealed, allowing water to easily flow into the room, thus reducing the applicability of the air-raid shelter door.

[0004] After existing floodgates have blocked water, water may still remain on the ground in the gate area, affecting the passage and safety of personnel. This usually requires manual cleaning, which is labor-intensive and inefficient. If the existing door area water cleaning device cannot automatically lift off the ground during the door closing stage, it is easy to carry water back and cause secondary diffusion. It will also wear out, get stuck and fail due to long-term friction with the ground, resulting in the inability to achieve reliable linkage cleaning and automatic reset. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic ground water cleaning device that links the opening and closing of a civil defense door. Utilizing the opening process of the left and right door panels driven by the door panel drive mechanism, a lifting assembly separates and switches the sealing strip from the lower door frame, simultaneously causing the sponge strip of the cleaning structure to work in contact with the ground. During the door opening stroke, residual water near the door is continuously pushed and scraped, guiding it to a lower drain, resulting in virtually no residual water on the ground in the door area after the door is opened. This significantly reduces the burden of manual cleaning and improves passage efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic ground water cleaning device with interlocking opening and closing mechanism for air-raid shelter doors includes a left and right door leaf pivotally mounted on a wall. Each door leaf is connected to a door leaf drive mechanism for opening and closing. The upper and sides of the left and right door leaves are sealed to their respective upper and side door frames via sealing strips. A center seam sealing structure is provided at the center seam of the left and right door leaves. A bottom sealing structure is provided between the bottom of the left and right door leaves on the back side and the lower door frame, while a cleaning mechanism is provided at the bottom of the left and right door leaves on the front side. Structure: Lifting structures are installed on the left and right doors respectively. The lifting structures include two sets of lifting components located on the water-facing and water-repellent sides of the door and moving in opposite directions. The two sets of lifting components on the same door are connected to the bottom sealing structure and the cleaning structure through connecting rods. The bottom sealing structure and the cleaning structure on the same door rise or fall in opposite directions. When the door is opened, the sponge strip of the cleaning structure contacts the ground and pushes the water on the ground to the drain during the opening process. When the door is closed, the sponge strip of the cleaning structure automatically moves up and detaches from the ground to maintain a gap.

[0007] Preferably, the bottom sealing structure includes an outwardly protruding plate fixed to the back surface of the door leaf, a first L-shaped plate spaced apart from the outwardly protruding plate, the first L-shaped plate and the outwardly protruding plate being fixedly connected by welding through an inverted U-shaped plate, and a sealing strip being slidably arranged between the outwardly protruding plate and the first L-shaped plate; a first upright plate is arranged on the side of the sealing strip near the lifting assembly, the top of the first upright plate is fixedly connected to the adjacent lifting assembly connecting rod, and the bottom of the first upright plate is connected to the sealing strip through a pressing assembly; when the door leaf is closed, the first L-shaped plate is located above the top of the lower door frame, the bottom side of the outwardly protruding plate is in contact with the water-facing side wall of the lower door frame, and the sealing strip is located at the top of the lower door frame.

[0008] Preferably, the extrusion assembly includes a chamfered truncated groove formed on the top of the sealing strip, a chamfered truncated body disposed inside the chamfered truncated groove, and the top of the chamfered truncated body connected to a first upright plate via a vertical rod; an array of connecting units is provided between the chamfered truncated body and the sealing strip, the connecting unit including a bolt and a screw, the bottom end of the bolt having an internally threaded hole, and coaxial through holes being formed on the chamfered truncated body and the sealing strip; a first receiving hole is formed by expanding the diameter at the bottom of the through hole of the chamfered truncated body, and a second receiving hole is formed by expanding the diameter at the bottom of the through hole of the sealing strip; the bolt passes through the coaxial through hole of the chamfered truncated body and the sealing strip, and the screw is located in the second receiving hole and screwed into the internally threaded hole of the bolt, limiting the vertical movement range of the chamfered truncated body and the sealing strip; a return spring is located in the first receiving hole and sleeved on the bolt, so that the chamfered truncated body and the sealing strip remain separated and without deformation when no external force is applied.

[0009] Preferably, a receiving cavity is formed inside the door leaf, and the lifting assembly controlling the cleaning structure is located inside the receiving cavity; a receiving groove is set at the bottom of the door leaf, located below the receiving cavity and sealed and isolated by an isolation plate, and the cleaning structure is located inside the receiving groove; the connecting rod of the lifting assembly slides through the isolation plate and extends into the receiving groove and is connected to the cleaning structure; the cleaning structure includes a second upright plate, the top of the second upright plate is fixedly connected to the connecting rod of the lifting assembly, and the bottom of the second upright plate is provided with a sponge strip through a reset mechanism; when the door leaf is opened, the lifting assembly is adjusted to separate the bottom sealing structure from the lower door frame, and the linkage mechanism causes the sponge strip of the cleaning structure to contact the ground, and the sponge strip pushes and scrapes the water on the ground to the drain during the opening of the door leaf; when the door leaf is closed, the sponge strip of the cleaning structure automatically moves upward and detaches from the ground to maintain a gap.

[0010] Preferably, the reset mechanism includes an I-beam, a U-shaped plate, and a sliding rod. The web of the I-beam is vertically connected to the second upright plate, forming a cross structure. The two wings of the I-beam are equidistantly distributed on both sides of the second upright plate. The two side plates of the U-shaped plate are slidably sleeved on the two wings of the I-beam. The bottom plate of the U-shaped plate is located on the side away from the lifting assembly. The bottom end of the bottom plate of the U-shaped plate is fixedly connected to a sponge strip through a third upright plate. The third upright plate extends away from the sponge strip to the space between the two side plates of the U-shaped plate. The top of the extended third upright plate forms multiple spaced first circular protrusions, and a first circular concave is formed between adjacent first circular protrusions. The sliding rod is slidably sleeved on a guide rod at the bottom of the second upright plate through a groove at its top, enabling the sliding rod to slide along the length of the second upright plate. The bottom end of the sliding rod forms a second circular protrusion corresponding to the first circular protrusion, and a second circular concave is formed between adjacent second circular protrusions. Multiple sets of second elastic components are provided between the second upright plate and the U-shaped plate to provide a contraction force for them to move closer together. A first elastic component and a one-way limiting component are respectively provided at both ends of the second upright plate.

[0011] Preferably, the second elastic component includes a second guide rod and a second return spring. The second guide rod slides through the web of the I-beam plate, and one end of the second guide rod is fixedly connected to the bottom plate of the U-shaped plate. A limiting block is fixedly installed at the other end of the second guide rod, and a second return spring is sleeved on the second guide rod. The two ends of the second return spring are respectively fixedly connected to the web of the I-beam plate and the limiting block.

[0012] Preferably, the first elastic component is located near the center seam of the door leaf. The first elastic component includes a first guide rod and a first return spring. A sleeve rod is fixedly installed on one end of the slide rod near the center seam of the door leaf. The first guide rod slides through the sleeve rod. A sliding plate is fixedly installed on the other end of the first guide rod. The two ends of the sliding plate slide into the grooves on the side wall of the receiving groove. The first return spring is sleeved on the first guide rod. The two ends of the first return spring are fixedly connected to the sliding plate and the sleeve rod, respectively.

[0013] Preferably, the receiving groove is provided through one side wall away from the center seam of the door leaf; the one-way limiting component includes an arc-shaped end and an arc-groove column, the end of the slide rod away from the center seam of the door leaf extends outward from the door leaf and the end is fixed with an arc-shaped end; a rotating rod is provided at the door leaf near the arc-shaped end, the rotating rod is coaxial with the pivot of the door leaf, the rotating rod is fixedly connected to the adjacent wall through a support plate, and the arc-groove column is installed on the rotating rod through a one-way bearing; the arc-shaped end abuts against the arc-groove column.

[0014] Preferably, the lifting assembly includes a handwheel and a horizontally arranged transmission rod. Two sets of handwheels on the same door leaf are connected by the same rotating shaft. A worm gear is installed on the rotating shaft to drive a worm wheel. The worm wheel has an internal thread, and the transmission rod has an external thread in the middle section. The transmission rod is threaded through the worm wheel. The two ends of the transmission rod are respectively connected to vertical connecting rods through the lifting unit. The connecting rod of the lifting assembly on the back side is fixedly connected to the first vertical plate, and the connecting rod of the lifting assembly on the front side is fixedly connected to the second vertical plate. The worm wheel and worm gear structure of the two sets of lifting assemblies on the same door leaf adopts a reverse thread setting, so that the two sets of lifting assemblies can be displaced in opposite directions when the handwheel is rotated.

[0015] Preferably, several vertical strip holes are provided on both sides of the U-shaped plate, and a limiting guide rod slides through the strip holes. One end of the limiting guide rod is fixedly connected to the wing plate of the I-beam, and a limiting cap is fixedly provided on the other end of the limiting guide rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes the opening process of the left and right door panels driven by the door panel drive mechanism to achieve the separation and switching of the sealing strip and the lower door frame through the lifting component, and simultaneously makes the sponge strip of the cleaning structure work on the ground. During the door opening stroke, the residual water near the door is continuously pushed and scraped and directed to the drain at a lower position, so that there is basically no residual water on the ground in the door area after the door is opened, which significantly reduces the burden of manual cleaning and improves passage efficiency.

[0017] 2. The cleaning structure of this invention uses a sponge strip as a ground-hugging and scraping component, installed in the receiving groove at the bottom of the door. The door is opened around the rotating shaft by the door drive mechanism. The lifting component pre-drives the second upright plate downward to transmit downward pressure, causing the third upright plate to continuously push the sponge strip to the ground, thereby pushing and scraping the residual water near the floodproof door along the opening trajectory and guiding it to a lower drainage position, achieving the effect of "cleaning as soon as the door is opened, without the need for repeated manual mopping". In terms of automatic reset, during the closing process, the arc-shaped end and the arc groove column form a one-way limiting cooperation, triggering the slide rod to generate lateral displacement under the guidance of the slide groove and the guide rod, causing the cooperation state of the first round convex and the second round convex to switch. Under the rebound action of the second reset spring, the third upright plate is driven to move upward, thereby causing the sponge strip to automatically lift off the ground and maintain a gap. This not only avoids reverse water carrying and secondary diffusion when the door is closed, but also significantly reduces the ineffective friction and wear between the sponge strip and the ground, highlighting the stability and durability of the linkage cleaning and self-reset.

[0018] 3. When the door is closed and water is blocked, the bottom sealing structure of this invention presses down the lifting assembly to insert the chamfered truncated pyramid into the chamfered truncated pyramid groove. The wedge-shaped compression causes the sealing strip to expand outward. The side wall adheres to the outer convex plate and the first L-shaped plate to form a circumferential seal. The bottom expands outward and extends into the joint with the lower door frame to achieve gap compensation. At the same time, the outer convex plate adheres to the lower door frame and the first L-shaped plate spans above the lower door frame to form multiple water-blocking measures, reducing the risk of water seepage at the bottom of the door. Before the door is opened, when the lifting assembly rises, the return spring causes the chamfered truncated pyramid to separate and retract from the sealing strip. The sealing strip is detached from the lower door frame and its stroke is limited by the bolt, screw, and the first and second receiving holes to avoid excessive friction and compression fatigue, extend the life of the sealing strip, and achieve "strong sealing when closing the door and detachment when opening the door". Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the crank arm sliding drive structure of the device of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the water-facing surface of the door leaf of the device of the present invention. Figure 1 ; Figure 3 This is a three-dimensional structural diagram of the backwater surface of the door leaf of the device of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the water-facing surface of the door leaf of the device of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the installation structure of the lifting assembly of the device of the present invention; Figure 6 This is a partial schematic diagram of the bottom sealing structure of the device of the present invention; Figure 7 This is a schematic diagram of the disassembled bottom sealing structure of the device of the present invention; Figure 8 For the device of the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram of the cross-sectional structure of the water-facing side of the door leaf of the device of the present invention; Figure 10 This is a schematic diagram of the unidirectional limiting component structure of the device of the present invention; Figure 11 This is a schematic diagram of the structure of the first elastic component of the device of the present invention; Figure 12 This is a schematic cross-sectional view of the reset mechanism of the device of the present invention; Figure 13 This is a schematic diagram of the disassembled structure of the reset mechanism of the device of the present invention; In the diagram: Wall-11; Door drive mechanism-12; Crank arm-13; Crank arm slide rail-14; Left door leaf-15; Right door leaf-16; Upper door frame-17; Rotating shaft-18; Handwheel-19; Lower door frame-20; Lifting assembly-21; First upright plate-22; Receiving groove-23; Upright rod-24; Inverted truncated pyramid-25; Inverted U-shaped plate-26; Sealing strip-27; First L-shaped plate-28; Outwardly protruding plate-29; Receiving cavity-30; First receiving hole-31; Isolation plate-32; Second upright plate-33; U-shaped plate-34; Arc groove column-35; I-beam plate-36; Sponge strip- 37; Third upright plate - 38; Sleeve rod - 39; First guide rod - 40; First return spring - 41; Slide plate - 42; Arc-shaped end - 43; First round convex - 44; Second round convex - 45; Slide rod - 46; Slide groove - 47; Guide rod - 48; Screw - 49; Second return spring - 50; Limiting block - 51; Second guide rod - 52; Chamfered truncated groove - 53; Second receiving hole - 54; Bolt rod - 55; Return spring - 56. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

[0021] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Figures 1-13 As shown, an automatic ground water cleaning device with interlocking opening and closing of a civil defense door includes a left door leaf 15 and a right door leaf 16 pivotally mounted on a wall 11. Door leaf drive mechanisms 12 are connected to the left and right door leaves 15 and 16 respectively, used to drive the opening and closing of the doors. The upper parts and sides of the left and right door leaves 15 and 16 are sealed to the corresponding upper door frame 17 and side door frame via sealing strips. A center seam sealing structure is provided at the center seam of the left and right door leaves. A bottom sealing structure is provided between the bottom of the left and right door leaves on the back side and the lower door frame 20, and a cleaning structure is provided at the bottom of the left and right door leaves on the front side. Lifting structures are provided on the left and right door leaves respectively. Each lifting structure includes two sets of lifting components 21 located on the front and back sides of the door leaf and moving in opposite directions. The two sets of lifting components 21 on the same door leaf are connected to the bottom sealing structure and the cleaning structure via connecting rods. The bottom sealing structure and the cleaning structure on the same door leaf rise or fall in opposite directions. When the door is opened, the lifting assembly 21 is adjusted to separate the bottom sealing structure from the lower door frame 20, and at the same time, the sponge strip of the cleaning structure comes into contact with the ground. During the opening of the door, the sponge strip pushes the water on the ground to the drain. When the door is closed, the sponge strip of the cleaning structure automatically moves up and away from the ground to maintain a gap. In this embodiment, the door leaf rotation angle is 90 degrees, and a long strip-shaped drain is provided on the ground near the two side walls 11, with a drain pump installed inside the drain. It should be noted that the drain is located on the floor of wall 11 near the door when it is open. The lowest point of the floor is at the door's rotation path. The entire floor adopts a sloping structure to guide the accumulated water to the drain and the vicinity of the door. When the door is open, the sponge strips of the cleaning structure push and scrape the accumulated water on the floor into the drain. The door drive mechanism 12 can be set on the back side using a curved arm slide groove type drive structure. The rotational motion of the motor is converted into the opening and closing motion of the left door 15 and the right door 16 through the cooperation of the curved arm 13 and the curved arm slide groove 14. This structure realizes the controlled motion of the door through the geometric constraint relationship between the curved arm 13 and the curved arm slide groove 14. It is suitable for working conditions with high requirements for the opening and closing stroke and motion trajectory of the door. The door drive mechanism 12 can be set at the bottom of the left door 15 and the right door 16 using an externally mounted walking wheel drive structure. The rollers are driven by a motor to roll and push the left door 15 and the right door 16 to open and close. This structure uses the rolling support between the bottom of the door and the ground to achieve smooth movement of the door. It is suitable for installation scenarios where the door is heavy and the ground conditions allow for the installation of roller guides. The center seam sealing structure includes a rubber strip groove welded on the left door leaf 15 or the right door leaf 16, a center seam sealing rubber strip installed in the rubber strip groove, and a pressure plate installed on the left and right door leaves; the center seam sealing structure is used to seal and compensate for the joint in the middle of the double door leaf to prevent water from seeping in from the joint of the door leaves.

[0023] This invention utilizes the opening process of the left door leaf 15 and the right door leaf 16 driven by the door leaf drive mechanism 12. The lifting component 21 realizes the separation and switching of the sealing strip 27 and the lower door frame 20, and simultaneously makes the sponge strip 37 of the cleaning structure work close to the ground. During the door opening stroke, the residual water near the door is continuously pushed and scraped and directed to the drain at a lower position, so that there is basically no residual water on the ground in the door area after the door is opened, which significantly reduces the burden of manual cleaning and improves passage efficiency.

[0024] Furthermore, the bottom sealing structure includes an outwardly protruding plate 29 fixed on the back surface of the door leaf, a first L-shaped plate 28 spaced apart from the outwardly protruding plate 29, the first L-shaped plate 28 and the outwardly protruding plate 29 being fixedly connected by welding through an inverted U-shaped plate 26, and a sealing strip 27 being slidably arranged between the outwardly protruding plate 29 and the first L-shaped plate 28; a first upright plate 22 is arranged on the side of the sealing strip 27 near the lifting assembly 21, the top of the first upright plate 22 is fixedly connected to the adjacent lifting assembly 21 connecting rod, and the bottom of the first upright plate 22 is connected to the sealing strip 27 through a compression assembly; when the door leaf is closed, the first L-shaped plate 28 is located above the top of the lower door frame 20, the bottom side of the outwardly protruding plate 29 is in contact with the water-facing side wall of the lower door frame 20, and the sealing strip 27 is located at the top of the lower door frame 20; It should be noted that when the lifting assembly 21 is pressed down, the squeezing assembly applies force to the sealing strip 27, causing the sealing strip 27 to deform and expand outward. The bottom of the sealing strip 27 expands outward and extends into the joint between the outer convex plate 29, the lower door frame 20 and the first L-shaped plate 28 to form a seal; the side wall of the sealing strip 27 expands outward and fits against the outer convex plate 29 and the first L-shaped plate 28 to form a seal.

[0025] When the door is closed and water is blocked, the bottom sealing structure of this invention uses a lifting assembly 21 to press down and insert the chamfered truncated pyramid body 25 into the chamfered truncated pyramid groove 53. The wedge-shaped compression causes the sealing strip 27 to expand outward. The side wall adheres to the outer convex plate 29 and the first L-shaped plate 28 to form a circumferential seal. The bottom expands outward and extends into the joint with the lower door frame 20 to achieve gap compensation. At the same time, the outer convex plate 29 adheres to the lower door frame 20, and the first L-shaped plate 28 spans above the lower door frame 20 to form multiple water-blocking layers, reducing the risk of water seepage at the bottom of the door. Before the door is opened, when the lifting assembly 21 rises, the return spring 56 causes the chamfered truncated pyramid body 25 to separate and retract from the sealing strip 27. The sealing strip 27 is detached from the lower door frame 20, and its stroke is limited by the bolt 55, screw 49, first receiving hole 31, and second receiving hole 54 to avoid excessive friction and compression fatigue, extend the life of the sealing strip 27, and achieve "strong sealing when closing the door and detachment when opening the door".

[0026] Furthermore, the extrusion assembly includes a chamfered truncated groove 53 formed on the top of the sealing strip 27, with a chamfered truncated body 25 disposed inside the chamfered groove 53. The top of the chamfered truncated body 25 is connected to the first upright plate 22 via a vertical rod 24. An array of connecting units is provided between the chamfered truncated body 25 and the sealing strip 27. The connecting unit includes a bolt 55 and a screw 49. The bottom end of the bolt 55 has an internally threaded hole, and coaxial through holes are formed on the chamfered truncated body 25 and the sealing strip 27. The bottom of the through hole of the chamfered truncated body 25 is enlarged. A first receiving hole 31 is formed, and a second receiving hole 54 is formed by expanding the diameter at the bottom of the through hole of the sealing strip 27; a bolt 55 is inserted into the coaxial through hole of the chamfered truncated body 25 and the sealing strip 27, and a screw 49 is located in the second receiving hole 54 and screwed into the internal thread hole of the bolt 55, limiting the vertical movement range of the chamfered truncated body 25 and the sealing strip 27; a return spring 56 is located in the first receiving hole 31 and sleeved on the bolt 55, so that the chamfered truncated body 25 and the sealing strip 27 remain separated and without deformation when there is no external force; It should be noted that when the lifting assembly 21 is in the rising state, under the action of the return spring 56, the chamfered frustum body 25 and the sealing strip 27 are in a state of no compression and fixed connection, and the sealing strip 27 can slide between the outer convex plate 29 and the first L-shaped plate 28; this facilitates the separation of the sealing strip 27 from the lower door frame 20 before the door is opened, avoiding excessive friction damage to the sealing strip 27; When the lifting assembly 21 is in the downward state, the return spring 56 is compressed, and the chamfered truncated body 25 is inserted into the chamfered truncated groove 53 of the sealing strip 27, expanding the outer periphery of the sealing strip 27 outward to fit against the outer convex plate 29 and the first L-shaped plate 28 to form a circumferential seal; the chamfered truncated body 25 inserted into the chamfered truncated groove 53 of the sealing strip 27 compresses the bottom of the sealing strip 27 to deform it outward, and extends into the gap between the outer convex plate 29, the first L-shaped plate 28 and the lower door frame 20 to produce a sealing effect and prevent water leakage.

[0027] Furthermore, a receiving cavity 30 is opened inside the door leaf, and the lifting assembly 21 controlling the cleaning structure is located inside the receiving cavity 30; a receiving groove 23 is set at the bottom of the door leaf, the receiving groove 23 is located below the receiving cavity 30 and is sealed and isolated by the isolation plate 32, and the cleaning structure is located inside the receiving groove 23; the connecting rod of the lifting assembly 21 slides through the isolation plate 32 and extends into the receiving groove 23 and is connected to the cleaning structure; the cleaning structure includes a second upright plate 33, the top of the second upright plate 33 is fixedly connected to the connecting rod of the lifting assembly 21, and the bottom end of the second upright plate 33 is provided with a sponge strip 37 through a reset mechanism; when the door leaf is opened, the lifting assembly 21 is adjusted to separate the bottom sealing structure from the lower door frame 20, and the linkage mechanism makes the sponge strip 37 of the cleaning structure contact the ground, and the sponge strip pushes the water on the ground to the drain during the opening of the door leaf; when the door leaf is closed, the sponge strip of the cleaning structure automatically moves up and detaches from the ground to maintain a gap.

[0028] Furthermore, the reset mechanism includes an I-beam 36, a U-shaped plate 34, and a slide bar 46. The web of the I-beam 36 is vertically connected to the second upright plate 33, forming a cross structure. The two wing plates of the I-beam 36 are equidistantly distributed on both sides of the second upright plate 33. The two side plates of the U-shaped plate 34 are slidably sleeved on the two wing plates of the I-beam 36. The bottom plate of the U-shaped plate 34 is located on the side away from the lifting assembly 21. The bottom end of the bottom plate of the U-shaped plate 34 is fixedly connected to the sponge strip 37 through a third upright plate 38. The third upright plate 38 extends away from the sponge strip 37 to the space between the two side plates of the U-shaped plate 34. The extended top forms multiple spaced first circular protrusions 44, and a first circular concave is formed between adjacent first circular protrusions 44; the slide rod 46 is slidably sleeved on the guide rod 48 at the bottom of the second vertical plate 33 through the slide groove 47 opened at the top, so that the slide rod 46 can slide along the length direction of the second vertical plate 33; the bottom end of the slide rod 46 forms a second circular protrusion 45 corresponding to the first circular protrusions 44, and a second circular concave is formed between adjacent second circular protrusions 45; multiple sets of second elastic components are set between the second vertical plate 33 and the U-shaped plate 34 to provide the contraction force for the two to come together, and a first elastic component and a one-way limiting component are respectively set at both ends of the second vertical plate 33.

[0029] The cleaning structure of this invention uses a sponge strip 37 as a ground-hugging and scraping component, installed in the receiving groove 23 at the bottom of the door leaf. The door leaf is opened by the door leaf drive mechanism 12 around the rotating shaft 18. The lifting component 21 pre-drives the second upright plate 33 downward to transmit downward pressure, causing the third upright plate 38 to drive the sponge strip 37 to continuously keep it in contact with the ground, thereby pushing and scraping the residual water near the floodproof door along the opening trajectory and guiding it to a lower drainage position, achieving the effect of "cleaning as soon as the door is opened, without the need for repeated manual mopping"; in terms of automatic reset, during the closing process, the arc-shaped end 43 and... The arc groove column 35 forms a one-way limiting fit, triggering the slide bar 46 to generate lateral displacement under the guidance of the slide groove 47 and the guide rod 48, causing the fit state of the first round protrusion 44 and the second round protrusion 45 to switch, and under the rebound action of the second reset spring 50, it drives the third upright plate 38 to move upward, thereby causing the sponge strip 37 to automatically lift off the ground and maintain a gap, which not only avoids reverse water carrying and secondary diffusion when the door is closed, but also significantly reduces the ineffective friction and wear between the sponge strip 37 and the ground, highlighting the stability and durability of the linkage cleaning and self-reset.

[0030] Furthermore, the second elastic component includes a second guide rod 52 and a second return spring 50. The second guide rod 52 slides through the web of the I-beam 36, and one end of the second guide rod 52 is fixedly connected to the bottom plate of the U-shaped plate 34. A limiting block 51 is fixedly installed at the other end of the second guide rod 52, and the second return spring 50 is sleeved on the second guide rod 52. The two ends of the second return spring 50 are respectively fixedly connected to the web of the I-beam 36 and the limiting block 51. It should be noted that during installation, the second return spring 50 is set to a compressed state. The force of the second return spring 50 is converted into a contraction force that brings the second upright plate 33 and the U-shaped plate 34 closer together, thereby causing the first round protrusion 44 and the second round protrusion 45 to abut against each other, so that the sponge strip 37 contacts the ground and pushes away water stains; or the first round protrusion 44 is inserted into the second round recess and the second round protrusion 45 is inserted into the first round recess, so that the sponge strip 37 is displaced upward and falls off the ground, avoiding the reverse push of water stains during the closing of the door.

[0031] Furthermore, the first elastic component is located near the center seam of the door leaf. The first elastic component includes a first guide rod 40 and a first return spring 41. A sleeve rod 39 is fixedly installed on one end of the slide rod 46 near the center seam of the door leaf. The first guide rod 40 slides through the sleeve rod 39. A sliding plate 42 is fixedly installed on the other end of the first guide rod 40. Both ends of the sliding plate 42 slide into the grooves on the side wall of the receiving groove 23. The first return spring 41 is sleeved on the first guide rod 40. The two ends of the first return spring 41 are fixedly connected to the sliding plate 42 and the sleeve rod 39, respectively.

[0032] Furthermore, the receiving groove 23, located away from the center seam of the door leaf, is provided through one side wall; the one-way limiting component includes an arc-shaped end 43 and an arc-groove column 35, and the end of the slide rod 46 away from the center seam of the door leaf extends outward from the door leaf and the arc-shaped end 43 is fixed at the end; a rotating rod is provided at the door leaf near the end of the arc-shaped end 43, and the rotating rod is coaxial with the pivot of the door leaf. The rotating rod is fixedly connected to the adjacent wall 11 through a support plate, and the arc-groove column 35 is installed on the rotating rod through a one-way bearing; the arc-shaped end 43 abuts against the arc-groove column 35; It should be noted that the first return spring 41 is set to the compressed state during installation. Its return and unfolding force drives the slide rod 46 to move away from the center seam of the door leaf, pushing the slide rod 46 to abut against the arc groove column 35. When the door is in the closed position, the first return spring 41 is in the state of pushing the slide bar 46 to abut against the arc groove column 35, the apexes of the first round protrusion 44 and the second round protrusion 45 are in the abutting state, and the arc end 43 is located in the recessed groove of the arc groove column 35. When the door is opened, the sponge strip 37 contacts the ground, and the arc-shaped end 43 is located in the recessed groove of the arc groove column 35, which drives the arc groove column 35 to rotate. At this time, the one-way bearing rotates freely, so that the arc-shaped end 43 is kept in the recessed groove of the arc groove column 35, and the apexes of the first round protrusion 44 and the second round protrusion 45 are in abutting state. The sponge strip 37 contacts the ground and pushes the water stains to the drain. When the door is closed, the one-way bearing is in a limited position, keeping the arc groove column 35 in a fixed position. The arc-shaped end 43 slides from the recessed groove of the arc groove column 35 to the protrusion, thereby pushing the arc-shaped end 43 and the slide rod 46 to move. This changes the positional relationship between the apexes of the first round protrusion 44 and the second round protrusion 45, forming a mutually embedded round concave state. At this time, under the action of the second elastic component, the third upright plate 38 drives the sponge strip 37 to move upward and off the ground, avoiding accidental pushing and scraping of water stains. After the door rotates ninety degrees, the arc groove column 35 slides into the adjacent recessed groove, preparing for the next pushing and scraping.

[0033] Furthermore, the lifting assembly 21 includes a handwheel 19 and a horizontally arranged transmission rod. The two sets of handwheels 19 on the same door leaf are connected by the same rotating shaft 18. A worm gear is installed on the rotating shaft 18 to drive a worm wheel. The worm wheel has an internal thread, and the transmission rod has an external thread in the middle section. The transmission rod is threaded through the worm wheel. The two ends of the transmission rod are respectively connected to vertical connecting rods through the lifting unit. The connecting rod of the lifting assembly 21 on the back side is fixedly connected to the first vertical plate 22, and the connecting rod of the lifting assembly 21 on the front side is fixedly connected to the second vertical plate 33. The worm wheel and worm gear structure of the two sets of lifting assemblies 21 on the same door leaf adopts a reverse thread setting, so that the two sets of lifting assemblies 21 can be displaced in opposite directions when the handwheel 19 is rotated. The lifting unit can be a wedge-shaped transmission structure that converts horizontal displacement into vertical displacement; it can also be a multi-link structure, such as... Figure 5 As shown, the horizontal displacement is converted into the vertical displacement. The conversion of the vertical displacement is a prior art technique and will not be described in detail here.

[0034] Furthermore, several vertical strip holes are provided on both sides of the U-shaped plate 34, and a limiting guide rod slides through the strip holes. One end of the limiting guide rod is fixedly connected to the wing plate of the I-beam plate 36, and a limiting cap is fixed to the other end of the limiting guide rod. The above settings enhance the stability of the sliding motion between the U-shaped plate 34 and the I-beam plate 36.

[0035] The present invention has been illustrated through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that all related improvements to the present invention fall within the protection and disclosure scope of the present invention.

Claims

1. An automatic ground water cleaning device with linkage between the opening and closing of a civil defense door, comprising a left door leaf (15) and a right door leaf (16) pivotally mounted on a wall (11), wherein a door leaf drive mechanism (12) is respectively connected to the left door leaf (15) and the right door leaf (16) for driving the opening and closing of the door leaf; characterized in that, The upper part and sides of the left door leaf (15) and the right door leaf (16) are sealed with the corresponding upper door frame (17) and side door frame by sealing strips, respectively. A center seam sealing structure is set at the center seam of the left and right door leaves. A bottom sealing structure is set between the bottom of the left and right door leaves on the back side and the lower door frame (20). A cleaning structure is set at the bottom of the left and right door leaves on the front side. A lifting structure is set on the left and right door leaves respectively. The lifting structure includes two sets of lifting components (21) set on the front and back sides of the door leaf and displaced in opposite directions. The two sets of lifting components (21) on the same door leaf are connected to the bottom sealing structure and the cleaning structure by connecting rods. The bottom sealing structure and the cleaning structure on the same door leaf rise or fall in opposite directions. When the door leaf is opened, the sponge strip of the cleaning structure contacts the ground. The sponge strip pushes the water on the ground to the drain during the opening of the door leaf. When the door leaf is closed, the sponge strip of the cleaning structure automatically moves up and away from the ground to maintain the gap.

2. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 1, characterized in that, The bottom sealing structure includes an outwardly protruding plate (29) fixed on the back surface of the door leaf, and a first L-shaped plate (28) spaced apart from the outwardly protruding plate (29). The first L-shaped plate (28) and the outwardly protruding plate (29) are fixedly connected by welding through an inverted U-shaped plate (26). A sealing strip (27) is slidably arranged between the gap between the outwardly protruding plate (29) and the first L-shaped plate (28). A first upright plate (22) is arranged on the side of the sealing strip (27) near the lifting assembly (21). The top of the first upright plate (22) is fixedly connected to the connecting rod of the adjacent lifting assembly (21). The bottom of the first upright plate (22) is connected to the sealing strip (27) through a pressing assembly. When the door leaf is closed, the first L-shaped plate (28) is located above the top of the lower door frame (20), the bottom side of the outwardly protruding plate (29) is in contact with the water-facing side wall of the lower door frame (20), and the sealing strip (27) is located at the top of the lower door frame (20).

3. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 2, characterized in that, The extrusion assembly includes a chamfered truncated groove (53) formed on the top of the sealing strip (27), a chamfered truncated body (25) is provided inside the chamfered truncated groove (53), and the top of the chamfered truncated body (25) is connected to the first upright plate (22) by a vertical rod (24); an array of connecting units is provided between the chamfered truncated body (25) and the sealing strip (27), the connecting unit includes a bolt (55) and a screw (49), the bottom end of the bolt (55) is provided with an internal threaded hole, and coaxial through holes are provided on the chamfered truncated body (25) and the sealing strip (27); the bottom of the through hole of the chamfered truncated body (25) is enlarged to form a first The receiving hole (31) is enlarged at the bottom of the through hole of the sealing strip (27) to form a second receiving hole (54); the bolt (55) is inserted into the coaxial through hole of the chamfered body (25) and the sealing strip (27), and the screw (49) is located in the second receiving hole (54) and screwed into the internal thread hole of the bolt (55), limiting the vertical movement range of the chamfered body (25) and the sealing strip (27); the return spring (56) is located in the first receiving hole (31) and sleeved on the bolt (55), so that the chamfered body (25) and the sealing strip (27) without external force remain separated and without deformation.

4. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 2, characterized in that, A receiving cavity (30) is opened inside the door leaf, and the lifting assembly (21) controlling the cleaning structure is located inside the receiving cavity (30); a receiving groove (23) is provided at the bottom of the door leaf, the receiving groove (23) is located below the receiving cavity (30) and is sealed and isolated by the isolation plate (32), and the cleaning structure is located inside the receiving groove (23); the connecting rod of the lifting assembly (21) slides through the isolation plate (32) and extends into the receiving groove (23) and is connected to the cleaning structure; the cleaning structure includes a second upright plate (3 3) The top of the second upright plate (33) is fixedly connected to the connecting rod of the lifting assembly (21), and the bottom of the second upright plate (33) is provided with a sponge strip (37) through the reset mechanism; when the door is opened, the lifting assembly (21) is adjusted to separate the bottom sealing structure from the lower door frame (20), and the linkage structure makes the sponge strip (37) of the cleaning structure contact the ground. During the opening of the door, the sponge strip pushes the water on the ground to the drain; when the door is closed, the sponge strip of the cleaning structure automatically moves up and leaves the ground to maintain the gap.

5. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 4, characterized in that, The reset mechanism includes an I-beam (36), a U-shaped plate (34), and a slide rod (46). The web of the I-beam (36) is vertically connected to the second vertical plate (33) and forms a cross structure. The two wing plates of the I-beam (36) are equidistantly distributed on both sides of the second vertical plate (33). The two side plates of the U-shaped plate (34) are slidably sleeved on the two wing plates of the I-beam (36). The bottom plate of the U-shaped plate (34) is located on the side away from the lifting assembly (21). The bottom end of the bottom plate of the U-shaped plate (34) is connected to the third vertical plate (38). The sponge strip (37) is fixedly connected; the third upright plate (38) extends away from the sponge strip (37) to the two side plates of the U-shaped plate (34), and the top of the extended third upright plate (38) forms a plurality of spaced first round protrusions (44), and a first round concave is formed between adjacent first round protrusions (44); the slide rod (46) slides through the slide groove (47) opened at the top and is slidably sleeved on the guide rod (48) at the bottom of the second upright plate (33), so that the slide rod (46) slides along the length direction of the second upright plate (33); The bottom end of the slide bar (46) forms a second round protrusion (45) corresponding to the first round protrusion (44), and a second round concave is formed between adjacent second round protrusions (45); multiple sets of second elastic components are provided between the second vertical plate (33) and the U-shaped plate (34) to provide the contraction force for the two to come together, and a first elastic component and a one-way limiting component are respectively provided at both ends of the second vertical plate (33).

6. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 5, characterized in that, The second elastic component includes a second guide rod (52) and a second return spring (50). The second guide rod (52) slides through the web of the I-beam plate (36). One end of the second guide rod (52) is fixedly connected to the bottom plate of the U-shaped plate (34). A limiting block (51) is fixedly installed at the other end of the second guide rod (52). The second return spring (50) is sleeved on the second guide rod (52). The two ends of the second return spring (50) are fixedly connected to the web of the I-beam plate (36) and the limiting block (51) respectively.

7. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 5, characterized in that, The first elastic component is located near the center seam of the door leaf. The first elastic component includes a first guide rod (40) and a first return spring (41). A sleeve rod (39) is fixed at one end of the slide rod (46) near the center seam of the door leaf. The first guide rod (40) slides through the sleeve rod (39). A sliding plate (42) is fixed at the other end of the first guide rod (40). Both ends of the sliding plate (42) slide into the grooves on the side wall of the receiving groove (23). The first return spring (41) is sleeved on the first guide rod (40). The two ends of the first return spring (41) are fixedly connected to the sliding plate (42) and the sleeve rod (39) respectively.

8. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 7, characterized in that, A receiving groove (23) away from the center seam of the door leaf is provided through one side wall; the one-way limiting component includes an arc-shaped end (43) and an arc groove column (35), the end of the slide rod (46) away from the center seam of the door leaf extends outward from the door leaf and the end is fixed with an arc-shaped end (43); a rotating rod is provided at the door leaf near the end of the arc-shaped end (43), the rotating rod is coaxial with the pivot of the door leaf, the rotating rod is fixedly connected to the adjacent wall (11) through a support plate, and the arc groove column (35) is installed on the rotating rod through a one-way bearing; the arc-shaped end (43) abuts against the arc groove column (35).

9. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 4, characterized in that, The lifting assembly (21) includes a handwheel (19) and a horizontally arranged transmission rod. The two sets of handwheels (19) on the same door leaf are connected by the same rotating shaft. A worm gear is set on the rotating shaft to drive the worm wheel. The worm wheel has an internal thread, and the transmission rod has an external thread in the middle section. The transmission rod is threaded through the worm wheel. The two ends of the transmission rod are respectively connected by vertical connecting rods through the lifting unit. The connecting rod of the lifting assembly (21) on the back side is fixedly connected to the first vertical plate (22), and the connecting rod of the lifting assembly (21) on the front side is fixedly connected to the second vertical plate (33). The worm gear structure of the two sets of lifting assemblies (21) on the same door leaf adopts a reverse thread setting. When the handwheel (19) is rotated, the two sets of lifting assemblies (21) are displaced in opposite directions.

10. The automatic ground water cleaning device with interlocking air-raid shelter door opening and closing mechanism according to claim 5, characterized in that, Several vertical strip holes are provided on both sides of the U-shaped plate (34). A limiting guide rod slides through the strip hole. One end of the limiting guide rod is fixedly connected to the wing plate of the I-beam plate (36), and the other end of the limiting guide rod is fixedly fitted with a limiting cap.

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