Flood prevention device and communication machine room
By designing an automated rotating rod and buoyancy box system, the automatic unfolding and rewinding of the waterproof roller shutter is solved, and the existing flood control device is inconvenient to operate and slow response in extreme weather, improving the timely and reliable response of the flood control device sex.
Patent Information
- Application Number
- CN202421102875.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing flood control devices are inconvenient to operate under extreme weather conditions, have slow response speed, and the mechanical lifting structure is easily disturbed by external environment, and the waterproofing effect is not ideal, making it difficult to deal with flood disasters in a timely manner.
A flood control device including a rotating rod, waterproof roller shutter, buoyancy box and rewinding assembly was designed. The buoyancy box drives the screw and lifting ring to rotate with the water level, so as to realize the automatic expansion and rewinding of the waterproof roller shutter, improving the response timeliness and reliability.
The waterproof roller shutter is automatically unfolded and rewinded when the water level of the external water accumulation changes, which improves the timeliness and reliability of the flood control device, reduces operating costs and difficulty, and avoids manual intervention.
Smart Images
Figure CN222315046U_ABST
Abstract
Description
Technical Field
[0001] The utility model specifically relates to a flood prevention device and a communication room. Background Art
[0002] With the rapid development of communication technology, the stable operation of the communication room, as a key node for information transmission, is crucial to ensure the quality of communication. However, communication equipment has high requirements for the operating environment, especially in terms of waterproofing and moisture resistance. During the rainy season or when flood disasters occur, the communication room is vulnerable to the threat of external water accumulation, which may lead to the risk of damage to communication equipment, data loss, or even paralysis of the entire communication system.
[0003] At present, there are some flood prevention devices on the market, such as waterproof doors with mechanical lifting structures, or waterproof curtains operated manually. However, most of these devices have problems such as inconvenient operation, slow response speed, and unsatisfactory waterproof effect. Especially in extreme weather conditions, manual operation is often difficult to respond in time, and mechanical lifting structures are also easily affected by external environment and fail. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a flood control device and a communication room in view of the above-mentioned deficiencies in the prior art, which can enable the waterproof roller curtain to be automatically unfolded and retracted according to the height of the accumulated water, thereby improving the response timeliness and reliability of the flood control device.
[0005] In the first aspect, an embodiment of the utility model provides a flood prevention device, which includes a rotating rod, a waterproof roller curtain, a buoyancy box and a rewinding assembly. The rotating rod is transversely fixed to the bottom outside the door and can rotate around its axis. The first end of the waterproof roller curtain is fixed to the rotating rod so that the rotating rod can unfold or rewind the waterproof roller curtain when rotating. The buoyancy box is arranged above the rotating rod, and the second end of the waterproof roller curtain is fixed to the buoyancy box. The rewinding assembly includes a fixed seat, a screw and a lifting ring; the fixed seat is located on the outside of the rotating rod and is arranged close to the end of the rotating rod; the screw is vertically rotatably arranged on the fixed seat, and the screw is transmission-connected to the rotating rod; the lifting ring is sleeved on the outside of the screw and can slide in the thread groove of the screw, and the lifting ring is also fixedly connected to the buoyancy box. The buoyancy box can rise and fall with the rise and fall of the water level, and drive the second end of the waterproof roller curtain to rise and fall, and drive the lifting ring to rise and fall; when the lifting ring rises and falls, it can drive the screw to rotate, and drive the rotating rod to rotate, so as to realize the unfolding or rewinding of the waterproof roller curtain.
[0006] In some embodiments, the number of the thread grooves of the screw is N, and on the cross section of the screw, the N thread grooves are evenly distributed along the center of the screw; wherein N is a positive integer, and N ≥ 2. The inner ring of the lifting ring has N protrusions evenly distributed along its center, the protrusions are arranged one-to-one with the thread grooves, each of the protrusions can be inserted into the corresponding thread groove, and each of the protrusions can slide in the corresponding thread groove.
[0007] In some embodiments, 2≤N≤4.
[0008] In some embodiments, N=2, and the shape of the thread groove is a DNA double helix.
[0009] In some embodiments, the diameter D of the screw satisfies: 3cm≤D≤8cm; and / or, the height H of the screw satisfies: 0.5m≤H≤2m; and / or, the pitch P of the screw satisfies: 5mm≤P≤10mm; and / or, the thread lead angle γ of the screw satisfies: 3°≤γ≤5°.
[0010] In some embodiments, the number of the fixed seat, the screw rod and the lifting ring is two; the two fixed seats are respectively arranged at the two ends of the rotating rod; the two screw rods are respectively rotatably arranged on the two fixed seats, and each of the screw rods is transmission connected to the rotating rod; the two lifting rings are respectively sleeved on the outside of the two screw rods, and the two lifting rings are respectively fixed on the opposite sides of the buoyancy box.
[0011] In some embodiments, each of the screw rods is connected to the rotating rod via a gear transmission.
[0012] In some embodiments, first gears are fixed to both ends of the rotating rod, and a second gear is fixed to the bottom end of each screw rod, and the first gear and the second gear are meshed with each other.
[0013] In some embodiments, a connecting rod is fixed on the buoyancy box, and the buoyancy box is connected to the two lifting rings respectively through the connecting rod.
[0014] In a second aspect, an embodiment of the utility model provides a communication room, which includes a room and the flood prevention device in the first aspect, wherein the flood prevention device is arranged outside the door of the room.
[0015] The communication room provided in the embodiment of the present invention has the same beneficial effects as the above-mentioned flood prevention device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 : A structural diagram of a flood control device provided by an embodiment of the utility model;
[0017] Figure 2 : A top view of a flood control device provided by an embodiment of the utility model;
[0018] Figure 3 : A structural diagram of a lifting ring provided in an embodiment of the utility model;
[0019] Figure 4 : A schematic diagram of a DNA double helix provided in an embodiment of the utility model. DETAILED DESCRIPTION
[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0021] Embodiment 1:
[0022] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a flood prevention device, which is applied to buildings that need to be waterproof to prevent external water from entering the room. The flood prevention device includes a rotating rod 1, a waterproof roller curtain 2, a buoyancy box 3 and a rewinding assembly.
[0023] The rotating rod 1 is transversely fixed to the bottom outside the door and can rotate around its axis. The first end of the waterproof rolling curtain 2 is fixed to the rotating rod 1 so that the rotating rod 1 can unfold or rewind the waterproof rolling curtain 2 when rotating.
[0024] For example, when there is a lot of water accumulation outside, the rotating rod 1 rotates forward to unfold the waterproof roller curtain 2, so that the waterproof roller curtain 2 is unfolded to block the external water accumulation; after the external water accumulation disappears, the rotating rod 1 is reversed to roll the waterproof roller curtain 2 back on the rotating rod 1, and the waterproof roller curtain 2 is stored to reduce the space occupied by the waterproof roller curtain 2.
[0025] like Figure 1 and Figure 2 As shown, the buoyancy box 3 is arranged above the rotating rod 1, and the second end of the waterproof roller curtain 2 is fixed on the buoyancy box 3. The rewinding assembly includes a fixed seat 4, a screw rod 5 and a lifting ring 6. The fixed seat 4 is located on the outside of the rotating rod 1 and is arranged close to the end of the rotating rod 1. The screw rod 5 is vertically rotatably arranged on the fixed seat 4, and the screw rod 5 is transmission-connected to the rotating rod 1. The lifting ring 6 is sleeved on the outside of the screw rod 5 and can slide in the thread groove 51 of the screw rod 5. The lifting ring 6 is also fixedly connected to the buoyancy box 3. The buoyancy box 3 can rise and fall with the rise and fall of the water level, and drive the second end of the waterproof roller curtain 2 to rise and fall, and drive the lifting ring 6 to rise and fall. When the lifting ring 6 is raised and lowered, it can drive the screw rod 5 to rotate, and drive the rotating rod 1 to rotate, so as to realize the unfolding or rewinding of the waterproof roller curtain 2.
[0026] When the accumulated water reaches the buoyancy box 3, the buoyancy box 3 can float on the water surface. Therefore, the buoyancy box 3 can rise and fall with the rise and fall of the external accumulated water level.
[0027] Exemplarily, the fixing seat 4 can support the screw rod 5 and the lifting ring 6 disposed thereon.
[0028] Exemplarily, the fixing seat 4 may be a steel base, so that the fixing seat 4 is heavier and can maintain the stability of the screw rod 5 and the lifting ring 6 .
[0029] Exemplarily, the screw rod 5 is fixed on the fixing seat 4 via a bearing, so that the screw rod 5 can rotate relative to the fixing seat 4 .
[0030] The lifting ring 6 is fixedly connected to the buoyancy box 3. Therefore, when the buoyancy box 3 is lifted or lowered, the lifting ring 6 can only follow the lifting or lowering of the buoyancy box 3 but cannot rotate. Therefore, the screw rod 5 can be driven to rotate during lifting or lowering, and the rotating rod 1 can be driven to rotate.
[0031] Exemplarily, the number of the thread grooves 51 of the screw rod 5 may be one or more.
[0032] Combination Figure 1 and Figure 2 When the water level of the external water increases, the buoyancy box 3 will rise with the rising water level, thereby driving the second end of the waterproof roller curtain 2 to rise; at the same time, the buoyancy box 3 will also drive the lifting ring 6 to rise. When the lifting ring 6 rises, it drives the screw 5 to rotate and drives the rotating rod 1 to rotate (for example, drives the rotating rod 1 to rotate forward), and the waterproof roller curtain 2 is unfolded from the rotating rod 1, so that the buoyancy box 3 can drive the second end of the waterproof roller curtain 2 to rise and unfold for waterproofing.
[0033] When the water level of the external water accumulation decreases, the buoyancy box 3 will drop due to its own gravity, thereby driving the second end of the waterproof roller curtain 2 to drop; at the same time, the buoyancy box 3 will also drive the lifting ring 6 to drop. When the lifting ring 6 drops, it drives the screw 5 to rotate and drives the rotating rod 1 to rotate (for example, drives the rotating rod 1 to reverse), and rolls the waterproof roller curtain 2 back on the rotating rod 1 to store the waterproof roller curtain 2 and reduce the space occupied by the waterproof roller curtain 2.
[0034] Through the above arrangement, the waterproof roller curtain 2 can be automatically unfolded when the external water level rises, and automatically reeled back when the external water level drops, thereby improving the response timeliness of the flood control device and effectively preventing rainwater from flowing into the room.
[0035] Therefore, the flood control device provided by the embodiment of the utility model can make the rotating rod 1 unfold or rewind the waterproof rolling curtain 2 when rotating by fixing the first end of the waterproof rolling curtain 2 on the rotating rod 1. By fixing the second end of the waterproof rolling curtain 2 and the lifting ring 6 to the buoyancy box 3 respectively, and making the lifting ring 6 sleeved on the outside of the screw 5 and able to slide in the thread groove 51 of the screw 5, the screw 5 is connected to the rotating rod 1 in a transmission manner, and when the buoyancy box 3 rises and falls with the rise and fall of the water level, the second end of the waterproof rolling curtain 2 can be driven to rise and fall, and the lifting ring 6 can be driven to rise and fall, and when the lifting ring 6 rises and falls, the screw 5 can be driven to rotate, and the rotating rod 1 can be driven to rotate, so as to realize the unfolding or rewinding of the waterproof rolling curtain 2, so that the waterproof rolling curtain 2 can be automatically unfolded when the external water level rises, and automatically rewinded when the external water level drops, so that the flood control device can realize the function of automatically sensing the external water accumulation, thereby improving the response timeliness and reliability of the flood control device, and the flood control device does not require manual intervention, thereby reducing the operating cost and difficulty of the flood control device.
[0036] In some embodiments, the number of the thread grooves 51 of the screw 5 is N, and on the cross section of the screw 5, the N thread grooves 51 are evenly distributed along the center of the screw 5; wherein N is a positive integer, and N ≥ 2. Figure 2 and Figure 3 The inner ring of the lifting ring 6 has N protrusions 61 evenly distributed along its center. The protrusions 61 are arranged one by one corresponding to the thread grooves 51. Each protrusion 61 can be inserted into the corresponding thread groove 51, and each protrusion 61 can slide in the corresponding thread groove 51.
[0037] Exemplarily, the number of the thread grooves 51 of the screw rod 5 is two, four, or six. Figure 1 As shown, Figure 1 Two thread grooves 51 are shown.
[0038] It can be understood that the number of thread lines on the outer surface of the screw 5 is the same as the number of thread grooves 51 .
[0039] Exemplarily, the thread lines on the outer surface of the screw 5 are evenly distributed, so that in the cross section of the screw 5 , N thread grooves 51 are evenly distributed along the center of the screw 5 .
[0040] It can be understood that, when the number of the thread grooves 51 is two, the number of the protrusions 61 is also two, and the two protrusions 61 are located at opposite ends of the inner ring of the lifting ring 6; when the number of the thread grooves 51 is four, the number of the protrusions 61 is also four, and the four protrusions 61 are distributed on the inner ring of the lifting ring 6 in a cross pattern.
[0041] Because the N protrusions 61 are evenly distributed along the center, after each protrusion 61 is inserted into the corresponding thread groove 51, each protrusion 61 in the lifting ring 6 can apply force to the screw 5 in the corresponding thread groove 51, so that the screw 5 is evenly stressed in multiple directions, making the lifting ring 6 drive the screw 5 to rotate more smoothly and avoiding jamming.
[0042] In some embodiments, 2≤N≤4.
[0043] That is, the number of the thread grooves 51 and the number of the protrusions 61 are both two, or the number of the thread grooves 51 and the number of the protrusions 61 are both three, or the number of the thread grooves 51 and the number of the protrusions 61 are both four.
[0044] It can be understood that when the number of thread grooves 51 and the number of protrusions 61 are small, the friction between the screw 5 and the pedal plate 3 is small, and the driving force required for the lifting ring 6 to drive the screw 5 to rotate is small; when the number of thread grooves 51 and the number of protrusions 61 are large, the force on the screw 5 can be more uniform when the lifting ring 6 drives the screw 5 to rotate.
[0045] Through the above arrangement, the driving force required when the lifting ring 6 drives the screw rod 5 to rotate can be smaller, and the force applied to the screw rod 5 can be more uniform.
[0046] Furthermore, in this embodiment, N=2, and the shape of the thread groove 51 is Figure 4 The DNA double helix.
[0047] That is, if Figure 1 and Figure 3 As shown, the number of the thread grooves 51 and the number of the protrusions 61 are both two.
[0048] The inventors have verified that in this case, the lifting ring 6 has better performance when driving the screw 5 to rotate, and this can also reduce the processing difficulty of the screw 5 and the lifting ring 6, reduce the production cost of the screw 5 and the lifting ring 6, and improve the yield of the screw 5 and the lifting ring 6.
[0049] In some embodiments, the diameter D of the screw 5 satisfies: 3 cm ≤ D ≤ 8 cm.
[0050] For example, the diameter D of the screw 5 may be 3 cm, 6 cm, or 8 cm.
[0051] When the diameter D of the screw 5 is larger, the difficulty of manufacturing the thread groove 51 on the screw 5 can be reduced and the overall strength of the screw 5 can be increased; when the diameter D of the screw 5 is smaller, the weight of the screw 5 will be reduced and the production cost of the screw 5 will be reduced.
[0052] Through the above arrangement, the screw 5 can have a higher strength while reducing the weight of the screw 5 and reducing the production cost of the screw 5.
[0053] In some examples, the height H of the screw 5 satisfies: 0.5 m ≤ H ≤ 2 m.
[0054] For example, the height H of the screw 5 may be 0.5 m, 1 m, or 2 m.
[0055] The above height range can meet the flood control height requirements at different locations in the actual use environment, and ensure that the waterproof roller curtain 2 can be fully unfolded and retracted, and meet the movement space of components such as the lifting ring 6 and the buoyancy box 3.
[0056] In some examples, the pitch P of the screw 5 satisfies: 5 mm ≤ P ≤ 10 mm.
[0057] The size of the pitch P determines the efficiency of driving the screw 5 to rotate when the lifting ring 6 is lifted or lowered, and affects the unfolding and rewinding speed of the waterproof roller curtain 2.
[0058] The smaller the pitch P, the higher the efficiency of driving the screw 5 to rotate when the lifting ring 6 is lifted or lowered, the greater the unfolding and rewinding speed of the waterproof roller curtain 2, and the faster the response speed; the larger the pitch P, the smoother the screw 5 is when the lifting ring 6 drives the screw 5 to rotate.
[0059] After considering the speed at which the external water level rises, the above pitch range can ensure the efficiency and response speed of the lifting ring 6 when driving the screw 5 to rotate, and ensure the smoothness of the screw 5 when rotating.
[0060] It should be noted that, in this embodiment, the lead of the screw 5 is the same as the pitch P.
[0061] In some examples, the lead angle γ of the screw 5 satisfies: 3°≤γ≤5°.
[0062] For example, the lead angle γ of the screw 5 may be 3°, 4°, 5°, etc.
[0063] The range of the above-mentioned thread lead angle γ can avoid the lifting ring 6 from generating a large resistance to the screw 5, so that the waterproof box 3 can smoothly drive the waterproof roller curtain 2 to unfold and the lifting ring 6 to rise when the accumulated water rises, and the lifting ring 6 can smoothly drive the screw 5 to rotate when the water level drops, so as to drive the rotating rod 1 to retract the waterproof roller curtain 2.
[0064] In some embodiments, Figure 1 and Figure 2As shown, there are two fixing seats 4, two screw rods 5 and two lifting rings 6. The two fixing seats 4 are respectively arranged at two ends of the rotating rod 1; the two screw rods 5 are respectively rotatably arranged on the two fixing seats 4, and each screw rod 5 is transmission-connected to the rotating rod 1; the two lifting rings 6 are respectively sleeved on the outside of the two screw rods 5, and the two lifting rings 6 are respectively fixed on the opposite sides of the buoyancy box 3.
[0065] Exemplarily, the fixing seat 4, the screw rod 5 and the lifting ring 6 are arranged correspondingly, one fixing seat 4, one screw rod 5 and one lifting ring 6 are located on the left side of the rotating rod 1, and another fixing seat 4, another screw rod 5 and another lifting ring 6 are located on the right side of the rotating rod 1.
[0066] It can be understood that when the buoyancy box 3 is raised or lowered, the two lifting rings 6 can be driven to be raised or lowered synchronously, and each lifting ring 6 can drive the corresponding screw rod 5 to rotate synchronously. The two synchronously rotating screw rods 5 can simultaneously drive the rotating rod 1 to rotate, thereby increasing the driving force when driving the rotating rod 1 to rotate, thereby making the rotating rod 1 rotate more smoothly, and facilitating the unfolding and rewinding of the waterproof roller curtain 2. Moreover, when the screw rod 5 or the lifting ring 6 on one side of the rotating rod 1 fails, the screw rod 5 or the lifting ring 6 on the other side of the rotating rod 1 can still work normally, thereby improving the reliability of the flood control device when it is working.
[0067] In some embodiments, Figure 1 As shown, each screw rod 5 is connected to the rotating rod 1 through gear transmission.
[0068] In some examples, such as Figure 1 As shown, first gears 7 are fixed to both ends of the rotating rod 1, and second gears 8 are fixed to the bottom end of each screw rod 5, and the first gears 7 and the second gears 8 are meshed with each other.
[0069] Exemplarily, the first gear 7 and the second gear 8 are both bevel gears, so that the horizontal rotating rod 1 and the vertical screw rod 5 can achieve transmission.
[0070] Gear transmission has the characteristics of accurate transmission, high efficiency, compact structure, reliable operation and long service life.
[0071] By adjusting the transmission ratio of the gear transmission, the buoyancy box 3 can drive the lifting ring 6 to rise and fall in sync with the full unfolding and rewinding of the waterproof roller curtain 2, that is, when the buoyancy box 3 drives the lifting ring 6 to rise to the top of the screw rod 5, the waterproof roller curtain 2 is fully unfolded from the rotating rod 1; when the buoyancy box 3 drives the lifting ring 6 to descend to the bottom of the screw rod 5, the rotating rod 1 completely rewinds the waterproof roller curtain 2.
[0072] In some embodiments, a connecting rod 9 is fixed on the buoyancy box 3 , and the buoyancy box 3 is connected to the two lifting rings 6 respectively through the connecting rod 9 .
[0073] Through the above arrangement, the buoyancy box 3 can synchronously drive the connecting rod 9 to move up and down when it is lifted or lowered, and the connecting rod 9 can drive the two lifting rings 6 to move up and down, so that the movements of the two lifting rings 6 remain synchronized.
[0074] Embodiment 2:
[0075] The embodiment of the utility model further provides a communication room, which includes a room and the flood prevention device in Embodiment 1. The flood prevention device is arranged outside the door of the room.
[0076] Exemplarily, the rotating rod 1 of the flood prevention device is transversely fixed to the bottom outside the machine room door.
[0077] Through the above settings, the flood prevention device can automatically unfold and retract the waterproof roller curtain according to the height of the accumulated water during the rainy season or when a flood disaster occurs. The response to the accumulated water is highly timely, which can prevent the communication room from being threatened by external water accumulation.
[0078] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.
Claims
1. A flood control device, characterized in that: include: A rotating rod (1) is transversely fixed to the bottom of the door and can rotate around its axis; A waterproof rolling curtain (2), a first end of which is fixed to the rotating rod (1), so that the rotating rod (1) can unfold or rewind the waterproof rolling curtain (2) when rotating; A buoyancy box (3) is arranged above the rotating rod (1), and the second end of the waterproof rolling curtain (2) is fixed on the buoyancy box (3); and, The rewinding assembly comprises a fixing seat (4), a screw rod (5) and a lifting ring (6); the fixing seat (4) is located outside the rotating rod (1) and is arranged close to the end of the rotating rod (1); the screw rod (5) is arranged on the fixing seat (4) for vertical rotation, and the screw rod (5) is connected to the rotating rod (1) by transmission; the lifting ring (6) is sleeved on the outside of the screw rod (5) and can slide in the thread groove (51) of the screw rod (5), and the lifting ring (6) is also fixedly connected to the buoyancy box (3); The buoyancy box (3) can rise and fall with the rise and fall of the water level, and drive the second end of the waterproof roller curtain (2) to rise and fall, and drive the lifting ring (6) to rise and fall; when the lifting ring (6) rises and falls, it can drive the screw rod (5) to rotate, and drive the rotating rod (1) to rotate, so as to realize the unfolding or rewinding of the waterproof roller curtain (2).
2. The flood control device according to claim 1, characterized in that: The number of the thread grooves (51) of the screw (5) is N, and on a cross section of the screw (5), the N thread grooves (51) are evenly distributed along the center of the screw (5); wherein N is a positive integer, and N≥2; The inner ring of the lifting ring (6) has N protrusions (61) evenly distributed along its center, and the protrusions (61) are arranged in a one-to-one correspondence with the thread grooves (51). Each of the protrusions (61) can be inserted into the corresponding thread groove (51), and each of the protrusions (61) can slide in the corresponding thread groove (51).
3. The flood control device according to claim 2, characterized in that: 2≤N≤4。 4. The flood control device according to claim 3, characterized in that: N=2, the shape of the thread groove (51) is a DNA double helix.
5. The flood control device according to claim 2, characterized in that: The diameter D of the screw (5) satisfies: 3cm≤D≤8cm and / or, The height H of the screw (5) satisfies: 0.5m≤H≤2m; and / or, The pitch P of the screw (5) satisfies: 5 mm ≤ P ≤ 10 mm; and / or, The thread lead angle γ of the screw (5) satisfies: 3°≤γ≤5°.
6. The flood control device according to claim 1, characterized in that: The number of the fixing seat (4), the screw rod (5) and the lifting ring (6) is two; The two fixing seats (4) are respectively arranged at the two ends of the rotating rod (1); the two screw rods (5) are respectively rotatably arranged on the two fixing seats (4), and each of the screw rods (5) is transmission-connected to the rotating rod (1); the two lifting rings (6) are respectively sleeved on the outside of the two screw rods (5), and the two lifting rings (6) are respectively fixed on the opposite sides of the buoyancy box (3).
7. The flood control device according to claim 6, characterized in that: Each of the screw rods (5) is connected to the rotating rod (1) via a gear transmission.
8. The flood control device according to claim 7, characterized in that: A first gear (7) is fixed to both ends of the rotating rod (1), a second gear (8) is fixed to the bottom end of each screw rod (5), and the first gear (7) and the second gear (8) are meshed with each other.
9. The flood control device according to claim 6, characterized in that: A connecting rod (9) is fixed on the buoyancy box (3), and the buoyancy box (3) is respectively connected to the two lifting rings (6) via the connecting rod (9).
10. A communication room, characterized in that: It comprises a machine room and a flood control device according to any one of claims 1 to 9; The flood prevention device is arranged outside the machine room door.