A new material double-leaf protective sealed door

Abstract

The present application relates to the technical field of protective door, especially to a new material double-leaf protective sealed door, comprising a door frame, protective doors and locking structures, etc.; two protective doors are rotatably connected to the door frame; each protective door is provided with a locking structure at the rear side thereof. The present application realizes the connection of the fire water pipe and the water inlet when the protective door needs to be pushed forward, so that the fire water flows through the fire water pipe and the cleaning water pipe and is sprayed from the water outlet, impacting the silt on the front side of the protective door and pushing it away from the protective door, thereby avoiding the silt from blocking the rotation of the protective door and ensuring the smooth opening of the protective door; before the valve is opened, the screw rod is rotated to drive the scraper to scrape the front side of the water outlet, and the scraper moves left and right repeatedly, thereby gradually pushing the silt away from the front side of the water outlet, ensuring a certain distance between the water outlet and the silt and a certain impact force of the water sprayed from the water outlet.

Description

Technical Field

[0001] This invention relates to the field of protective door technology, and in particular to a new type of double-leaf protective airtight door made of a novel material. Background Technology

[0002] Protective airtight doors are key facilities installed at the entrances and exits of civil defense projects such as underground garages, and have functions such as blocking shock waves and isolating toxic agents.

[0003] When urban flooding occurs, large amounts of sewage flow into low-lying underground parking garages. While closing protective airtight doors prevents sewage from entering the space inside the doors and protects vehicles and people in the garages, the sewage also carries mud and sand into the garages. As the sewage recedes, the slow flow and weak impact fail to carry away the mud and sand deposited at the bottom. This results in mud and sand accumulating at the bottom of the outer side of the protective airtight doors, making it difficult for people behind the doors to push them open. Summary of the Invention

[0004] To overcome the drawback that when sewage is blocked by a protective airtight door, the sediment deposited at the bottom cannot be carried away as the sewage recedes, and the accumulated sediment will prevent people behind the protective airtight door from pushing it open, this invention provides a new type of double-leaf protective airtight door made of new material.

[0005] The technical solution of this invention is: a novel double-leaf protective airtight door, comprising a door frame, protective doors, a locking structure, and a rotating disc; two protective doors are rotatably connected to the door frame; a locking structure is provided on the rear side of each protective door; a first drive shaft is provided on each locking structure, and a rotating disc is connected to one of the first drive shafts; it also includes a cleaning water pipe, a valve, and a cleaning assembly; a cleaning water pipe for flushing silt is fixedly connected inside each protective door, with an inlet on the upper rear side of the cleaning water pipe and an outlet on the lower front side of the cleaning water pipe; a valve is provided inside the cleaning water pipe, and the valve is rotatably connected to the protective door; a cleaning assembly for scraping silt from the bottom of each protective door is provided at the bottom.

[0006] Furthermore, the cleaning components include a fixed frame, a connecting rod, a worm gear, a worm wheel, a lead screw, a connecting plate, and a scraper; the fixed frame is fixedly connected to the lower front side of the protective door; the connecting rod is rotatably connected to the bottom of the protective door; a worm gear is fixedly connected to the front side of the connecting rod; a lead screw is rotatably connected inside the fixed frame; a worm wheel is fixedly connected to the lead screw; the worm gear and the worm wheel mesh with each other; a groove is opened on the lower side of the fixed frame, and a connecting plate is slidably connected in the groove, and the connecting plate is screwed to the lead screw; a scraper for scraping silt is fixedly connected to the lower side of the connecting plate, and the rear side of the scraper is in contact with the front side of the protective door.

[0007] Furthermore, a second drive shaft is provided on the rear side of the valve; a third drive shaft is provided on the rear side of the connecting rod, and the shapes of the second and third drive shafts are matched with the shape of the first drive shaft.

[0008] Furthermore, a scraper is provided on both the left and right sides of the connecting plate; the scraper fits against the inner side of the threaded groove of the lead screw.

[0009] Furthermore, the cross-sectional shape of the scraper is trapezoidal.

[0010] Furthermore, the protective door is made of high-strength aluminum alloy, which meets the strength requirements for civil defense materials.

[0011] Furthermore, it also includes a connecting pipe; an L-shaped connecting pipe is fixed to the protective door on the left, and the connecting pipe passes through the protective door; the lower opening of the connecting pipe faces forward, and the upper opening of the connecting pipe faces directly upward; the connecting pipe is made of transparent material such as acrylic or glass.

[0012] Furthermore, it also includes a float; a float is installed inside the connecting pipe, and the inner diameter of the opening on the upper side of the connecting pipe is smaller than the diameter of the float.

[0013] Furthermore, it also includes a filter screen; a filter screen is fixedly attached to the lower opening of the connecting pipe.

[0014] Furthermore, the filter shape is set to hemispherical.

[0015] The beneficial effects are as follows: First, when it is necessary to push the protective door forward, connect the fire water pipe to the water inlet, and then open the valve so that the fire water flows through the fire water pipe and the cleaning water pipe and sprays forward from the outlet to impact the mud and sand on the front side of the protective door and wash them away from the protective door, thereby avoiding the mud and sand from blocking the protective door from rotating forward and ensuring that the protective door can be opened smoothly.

[0016] 2. Before opening the valve, rotate the screw. Under the limit of the fixed frame, the screw drives the connecting plate to slide within the fixed frame, which in turn drives the scraper to scrape in front of the outlet. By repeatedly moving the scraper to the left or right, the mud and sand in front of the outlet are gradually pushed away, so that there is a certain distance between the outlet and the mud and sand, and there is a buffer between the water flow and the mud and sand, thus ensuring that the water flow sprayed from the outlet has a certain impact force.

[0017] Third, when the lead screw drives the connecting plate to move left and right, the scraper simultaneously scrapes along the thread groove of the lead screw. Then, the mud and sand on the thread groove of the lead screw move upward along the trapezoidal inclined surface of the scraper and separate from the lead screw, thereby effectively ensuring that the part of the connecting plate in contact with the lead screw is clean, and thus ensuring that the connecting plate moves smoothly on the lead screw.

[0018] The present invention also has the following beneficial effects:

[0019] When the silt in front of the outlet is scraped by the scraper, the silt can move forward along the trapezoidal slope of the scraper to reduce the resistance of the silt when the scraper moves left and right.

[0020] The protective door is made of high-strength aluminum alloy, which meets the strength requirements for civil defense materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the novel material double-leaf protective airtight door of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the combination of the locking structure and the rotating disk of the present invention;

[0023] Figure 3 This is a diagram of the cleaning water pipe and valve assembly of the present invention;

[0024] Figure 4 This is a cross-sectional view of the protective door of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the cleaning component of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting pipe of the present invention;

[0027] Figure 7 This is a cross-sectional view of the connecting pipe of the present invention.

[0028] Component names and serial numbers in the diagram: 1-Door frame, 2-Protective door, 3-Locking structure, 3001-First drive shaft, 4-Rotating disc, 5-Cleaning water pipe, 5001-Inlet, 5002-Outlet, 101-Valve, 10101-Second drive shaft, 201-Fixed frame, 202-Connecting rod, 20201-Third drive shaft, 203-Worm gear, 204-Worm wheel, 205-Screw screw, 206-Connecting plate, 20601-Scraper block, 207-Scraper blade, 301-Connecting pipe, 302-Float ball, 303-Filter screen. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] A new type of double-leaf protective airtight door made of a new material, such as Figures 1-5As shown, it includes a door frame 1, a protective door 2, a locking structure 3, and a rotating disk 4; two protective doors 2 that open forward are rotatably connected to the door frame 1; a locking structure 3 is provided on the rear side of each protective door 2; a first drive shaft 3001 is provided on each locking structure 3, and a rotating disk 4 is detachably connected to one of the first drive shafts 3001.

[0032] It also includes a cleaning water pipe 5, a valve 101, and a cleaning assembly; a cleaning water pipe 5 is fixedly connected inside each protective door 2, and an inlet 5001 is provided on the upper rear side of the cleaning water pipe 5, and an outlet 5002 facing the lower rear side is provided on the lower front side of the cleaning water pipe 5; a valve 101 is provided inside the cleaning water pipe 5, and the valve 101 is rotatably connected to the protective door 2; a cleaning assembly is provided at the bottom of each protective door 2.

[0033] The cleaning assembly includes a fixed frame 201, a connecting rod 202, a worm gear 203, a worm wheel 204, a lead screw 205, a connecting plate 206, and a scraper 207. The fixed frame 201 is fixedly connected to the lower front side of the protective door 2. The connecting rod 202 is rotatably connected to the bottom of the protective door 2. The worm gear 203 is fixedly connected to the front side of the connecting rod 202. The lead screw 205 is rotatably connected inside the fixed frame 201. The worm wheel 204 is fixedly connected to the lead screw 205. The worm gear 203 and the worm wheel 204 mesh with each other. A sliding groove is provided on the lower side of the fixed frame 201, and the connecting plate 206 is slidably connected in the sliding groove. The connecting plate 206 is screwed to the lead screw 205. The scraper 207 is fixedly connected to the lower side of the connecting plate 206. The cross-sectional shape of the scraper 207 is set as trapezoidal, and the rear side of the scraper 207 is in contact with the front side of the protective door 2.

[0034] A second drive shaft 10101 containing a spring ball is provided on the rear side of valve 101; a third drive shaft 20201 containing a spring ball is provided on the rear side of connecting rod 202. The shapes of the second drive shaft 10101 and the third drive shaft 20201 are matched with the shape of the first drive shaft 3001.

[0035] A scraper block 20601 is provided on the left and right sides of the connecting plate 206; the scraper block 20601 is in contact with the inner side of the thread groove of the lead screw 205.

[0036] The cross-sectional shape of scraper block 20601 is trapezoidal.

[0037] The protective door 2 is made of high-strength aluminum alloy, which meets the strength requirements of civil defense materials.

[0038] The working principle of the above embodiments is as follows:

[0039] In use, this invention is used in underground garages and other civil defense projects. When urban flooding occurs, sewage carrying mud and sand will rush into the underground garage. At this time, the protective door 2 can be turned back to close. Then, by manually rotating the rotating disc 4, the first transmission shaft 3001 is driven to rotate, which drives the locking structure 3 to lock and fix the protective door 2, thereby preventing water from flowing into the space behind the invention and protecting the space and people behind it. The locking structure 3 is a known structure of existing airtight doors for civil defense, which will not be described in detail here. At this time, the valve 101 is closed to prevent sewage from flowing into the cleaning pipe 5 from the outlet 5002 and then flowing outward from the inlet 5001 into the space behind the protective door 2. After the sewage in front of the invention gradually recedes, the protective door 2 can be turned forward to open. However, since the sewage flows away slowly and the impact force is small, it cannot take away the mud and sand deposited at the bottom. As a result, mud and sand accumulate on the lower front of the invention, making it difficult for people behind the protective door 2 to push the protective door 2 forward due to the obstruction of the mud and sand.

[0040] When the protective door 2 needs to be pushed forward, remove the fire water pipe from the fire hydrant box, connect one end of the fire water pipe to the fire hydrant, and connect the other end to the inlet 5001 of one of the cleaning water pipes 5. Then, remove the rotating disc 4 connected to the locking structure 3, install the rotating disc 4 on the second drive shaft 10101 of the corresponding valve 101, and then manually rotate the rotating disc 4 to drive the valve 101 to rotate and open the valve 101. Then, open the fire hydrant to allow fire water to flow through the fire hydrant box. After the water pipe and cleaning water pipe 5 are connected, the water is sprayed forward from the outlet 5002. The water flow from the outlet 5002 impacts the mud and sand on the front side of the protective door 2, washing it away from the protective door 2. This prevents the mud and sand from blocking the protective door 2 from rotating forward. Then, the fire hydrant is closed, and the fire water pipe is connected to the inlet 5001 of another cleaning water pipe 5. The above steps are repeated. After opening the corresponding valve 101, the mud and sand at the bottom front side of the other protective door 2 are washed away to ensure that both protective doors 2 can be opened smoothly.

[0041] It should be noted that when the height of the mud and sand on the front side of the protective door 2 is higher than the outlet 5002, the water flow cannot flush the mud and sand portion above the outlet 5002. However, since the inlet 5001 faces forward and downward, the water flow sprays forward and downward, which can wash away the mud and sand at the bottom. This causes the upper mud and sand to collapse downward due to the lack of support from the bottom mud and sand, thus washing away the upper mud and sand as well. Furthermore, since urban roads contain relatively little mud and sand, the thickness of the mud and sand deposited on the front side of the present invention is usually not too thick. It is unlikely that the upper mud and sand will remain unchanged after the bottom mud and sand are washed away due to the thick mud and sand on the front side of the present invention. Even if this happens, since the upper mud and sand lack the support of the bottom mud and sand, the obstruction force of the mud and sand on the protective door 2 is weak, and the protective door 2 can still be pushed forward relatively easily.

[0042] Furthermore, because the silt adheres tightly to the bottom front of the protective door 2, blocking the outlet 5002, the water flow in the cleaning pipe 5 lacks the necessary impact force, making it easy for the silt to trap the water inside the cleaning pipe 5. To ensure that the water can spray out normally from the outlet 5002 and to create a buffer between the water flow and the silt, before opening the valve 101, the rotating disc 4 is mounted on the third drive shaft 20201, and then the rotating disc 4 is manually rotated, thereby driving the connecting rod 202 and the worm gear 203 to proceed. The rotating disk 4 is driven by the worm gear 203 to rotate the worm wheel 204 and the lead screw 205. Under the limit of the fixed frame 201, the lead screw 205 drives the connecting plate 206 to slide within the fixed frame 201, which in turn drives the scraper 207 to scrape in front of the outlet 5002. By repeatedly rotating the rotating disk 4, the scraper 207 is driven to move left or right repeatedly, thereby gradually pushing away the mud and sand in front of the outlet 5002, so that there is a certain distance between the outlet 5002 and the mud and sand, and a buffer stroke between the water flow and the mud and sand.

[0043] When the protective door 2 is closed to block sewage, if the sewage height is higher than the fixed frame 201, some sewage carrying silt may enter the fixed frame 201, causing a small amount of silt to adhere to the screw rod 205. To prevent silt from getting stuck between the connecting plate 206 and the screw rod 205 when the connecting plate 206 moves on the screw rod 205, the screw rod 205 moves the connecting plate 206 left and right. At the same time, the scraper 20601 scrapes along the thread groove of the screw rod 205. Then, the silt on the thread groove of the screw rod 205 moves upward along the trapezoidal slope of the scraper 20601 and separates from the screw rod 205. This effectively ensures that the part of the connecting plate 206 in contact with the screw rod 205 is clean, thus ensuring that the connecting plate 206 moves smoothly on the screw rod 205.

[0044] Based on the above working principle, we can see that the present invention has the following effects:

[0045] When the protective door 2 needs to be pushed forward, connect the fire water pipe to the inlet 5001, and then open the valve 101 so that the fire water flows through the fire water pipe and the cleaning water pipe 5 and sprays forward from the outlet 5002. The water flow from the outlet 5002 impacts the mud and sand on the front side of the protective door 2 and washes them away from the protective door 2, thereby preventing the mud and sand from blocking the protective door 2 from rotating forward and ensuring that the protective door 2 can be opened smoothly.

[0046] Before opening valve 101, the lead screw 205 is rotated. Under the limit of fixed frame 201, the lead screw 205 drives the connecting plate 206 to slide within fixed frame 201, thereby driving scraper 207 to scrape in front of outlet 5002. By repeatedly moving left or right, scraper 207 gradually pushes away the mud and sand in front of outlet 5002, so that there is a certain distance between outlet 5002 and mud and sand, and there is a buffer stroke between water flow and mud and sand, thereby ensuring that the water flow sprayed from outlet 5002 has a certain impact force.

[0047] When the lead screw 205 drives the connecting plate 206 to move left and right, the scraper block 20601 scrapes along the thread groove of the lead screw 205. Then, the mud and sand on the thread groove of the lead screw 205 move upward along the trapezoidal slope of the scraper block 20601 and separate from the lead screw 205. This effectively ensures that the part of the connecting plate 206 in contact with the lead screw 205 is clean, thereby ensuring that the connecting plate 206 moves smoothly on the lead screw 205.

[0048] By allowing the rotating disk 4 to be respectively mounted on the first drive shaft 3001, the second drive shaft 10101 and the third drive shaft 20201, it is easy to drive the first drive shaft 3001, the second drive shaft 10101 and the third drive shaft 20201 to rotate, without the need for other tools, and only one rotating disk 4 is needed, which effectively saves costs.

[0049] In addition to the above-mentioned technical effects, the present invention also has the following advantages:

[0050] The cross-sectional shape of the scraper 207 is trapezoidal, which allows the mud and sand in front of the outlet 5002 to move forward along the trapezoidal slope of the scraper 207 when the scraper 207 is scraped, thereby reducing the resistance of the mud and sand when the scraper 207 moves left and right.

[0051] The protective door 2 is made of high-strength aluminum alloy, which meets the strength requirements of civil defense materials and ensures the protective performance of the present invention.

[0052] Example 2

[0053] Based on Example 1, such as Figure 1, Figure 6 and Figure 7 As shown, it also includes a connecting pipe 301; an L-shaped connecting pipe 301 is fixed to the protective door 2 on the left, and the connecting pipe 301 passes through the protective door 2; the lower opening of the connecting pipe 301 faces forward, and the upper opening of the connecting pipe 301 faces directly upward; the connecting pipe 301 is made of transparent material such as acrylic or glass.

[0054] It also includes a float 302; the float 302 is installed inside the connecting pipe 301, and the inner diameter of the upper opening of the connecting pipe 301 is smaller than the diameter of the float 302.

[0055] It also includes a filter screen 303; the filter screen 303 is fixedly connected to the lower opening of the connecting pipe 301.

[0056] The filter screen 303 is shaped like a hemisphere to prevent sediment from continuously accumulating on its surface.

[0057] The working principle of the above embodiments is as follows:

[0058] Before flushing the mud and sand in front of the protective door 2 as described in Example 1:

[0059] Since the person is located at the rear of the invention, it is inconvenient to know the water level of the sewage at the front of the invention. In this invention, when there is sewage at the front of the protective door 2, the sewage can enter the connecting pipe 301 through the opening at the lower side of the connecting pipe 301. According to the principle of communicating vessels, the water level of the sewage at the front of the invention can be known by reading the water level of the sewage in the connecting pipe 301. Furthermore, the filter screen 303 intercepts the mud and sand, preventing the mud and sand from entering the connecting pipe 301 and clogging it. The float ball 302 can float up as the sewage in the connecting pipe 301 rises, so the water level can be quickly known by observing the position of the float ball 302. When the water level of the sewage at the front of the invention is higher than the upper opening of the connecting pipe 301, the float ball 302 floats up to the upper opening of the connecting pipe 301. Since the inner diameter of the upper opening of the connecting pipe 301 is smaller than the diameter of the float ball 302, the upper opening of the connecting pipe 301 is blocked by the float ball 302, effectively preventing the sewage in the connecting pipe 301 from flowing into the space at the rear of the invention from the upper opening.

[0060] Based on the above working principle, we can see that the present invention has the following effects:

[0061] When there is sewage in front of the protective door 2, the sewage can enter the connecting pipe 301 through the opening on the lower side of the connecting pipe 301. The water level of the sewage in the connecting pipe 301 can be read to determine the water level of the sewage in front of the present invention. The filter screen 303 intercepts the mud and sand to prevent them from entering the connecting pipe 301. When the water level of the sewage in front of the present invention is higher than the opening on the upper side of the connecting pipe 301, the float ball 302 blocks the opening on the upper side of the connecting pipe 301, effectively preventing the sewage in the connecting pipe 301 from flowing into the space behind the present invention from the upper opening.

[0062] In addition to the above-mentioned technical effects, the present invention also has the following advantages:

[0063] The filter screen 303 is shaped like a hemisphere, which makes it difficult for mud and sand to adhere to the surface of the filter screen 303, thus preventing mud and sand from continuously accumulating on the surface of the filter screen 303 and affecting the entry of sewage into the connecting pipe 301.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A novel double-leaf protective airtight door, comprising a door frame (1), protective doors (2), a locking structure (3), and a rotating disc (4); two protective doors (2) are rotatably connected to the door frame (1); a locking structure (3) is provided on the rear side of each protective door (2); a first drive shaft (3001) is provided on each locking structure (3), and a rotating disc (4) is connected to one of the first drive shafts (3001); characterized in that: It also includes a cleaning water pipe (5), a valve (101), and a cleaning assembly; a cleaning water pipe (5) for flushing silt is fixedly connected inside each protective door (2), an inlet (5001) is provided on the upper rear side of the cleaning water pipe (5), and an outlet (5002) is provided on the lower front side of the cleaning water pipe (5); a valve (101) is provided inside the cleaning water pipe (5), and the valve (101) is rotatably connected to the protective door (2); a cleaning assembly for scraping the silt at the bottom of each protective door (2) is provided at the bottom; the cleaning assembly includes a fixed frame (201), a connecting rod (202), a worm (203), a worm wheel (204), a lead screw (205), a connecting plate (206), and a scraper (207); a fixed frame is fixedly connected to the lower front side of the protective door (2). (201); A connecting rod (202) is rotatably connected to the bottom of the protective door (2); A worm (203) is fixedly connected to the front side of the connecting rod (202); A screw (205) is rotatably connected inside the fixed frame (201); A worm wheel (204) is fixedly connected to the screw (205); The worm (203) and the worm wheel (204) mesh with each other; A sliding groove is opened on the lower side of the fixed frame (201), and a connecting plate (206) is slidably connected inside the sliding groove. The connecting plate (206) is screwed to the screw (205); A scraper (207) for scraping silt is fixedly connected to the lower side of the connecting plate (206), and the rear side of the scraper (207) is in contact with the front side of the protective door (2); The scraper (207) is used to scrape back and forth in front of the outlet (5002) to push away the mud and sand in front of the outlet (5002).

2. The novel material double-leaf protective airtight door according to claim 1, characterized in that: A second drive shaft (10101) is provided on the rear side of the valve (101); a third drive shaft (20201) is provided on the rear side of the connecting rod (202). The shapes of the second drive shaft (10101) and the third drive shaft (20201) are both matched with the shape of the first drive shaft (3001).

3. The novel material double-leaf protective airtight door according to claim 1, characterized in that: A scraper (20601) is provided on the left and right sides of the connecting plate (206); the scraper (20601) is in contact with the inner side of the thread groove of the lead screw (205).

4. The novel material double-leaf protective airtight door according to claim 3, characterized in that: The cross-sectional shape of the scraper (20601) is trapezoidal.

5. The novel material double-leaf protective airtight door according to claim 1, characterized in that: The protective door (2) is made of high-strength aluminum alloy, which meets the strength requirements of civil defense materials.

6. The novel material double-leaf protective airtight door according to claim 1, characterized in that: It also includes a connecting pipe (301); an L-shaped connecting pipe (301) is fixed to the protective door (2) on the left, and the connecting pipe (301) passes through the protective door (2); the lower opening of the connecting pipe (301) faces forward, and the upper opening of the connecting pipe (301) faces directly upward; the connecting pipe (301) is made of transparent material such as acrylic or glass.

7. A novel double-leaf protective airtight door made of new material according to claim 6, characterized in that: It also includes a float (302); the float (302) is installed inside the connecting pipe (301), and the inner diameter of the upper opening of the connecting pipe (301) is smaller than the diameter of the float (302).

8. A novel double-leaf protective airtight door made of new material according to claim 6, characterized in that: It also includes a filter screen (303); the filter screen (303) is fixedly connected to the lower opening of the connecting pipe (301).

9. A novel double-leaf protective airtight door made of new material according to claim 8, characterized in that: The filter (303) is set to a hemispherical shape.

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