Adjustable ventilation pipe for civil air defense engineering

Abstract

The utility model relates to a ventilation pipe technical field, the utility model provides an adjustable ventilation pipe for civil air defence engineering, it includes rectangular connecting plate, the side surface of rectangular connecting plate is penetrated to have ventilation pipe, the side surface of ventilation pipe is provided with regulation wind force subassembly, regulation wind force subassembly includes arc slot, the arc slot is set up on the outer wall of ventilation pipe, the side surface fixed connection of rectangular connecting plate has support shell, the inner wall fixed connection of support shell has motor. The utility model still includes reduces the technical problem of clogging subassembly, the driving rod of clogging subassembly, one end fixed connection in the side surface of connecting rod of driving rod, through above technical scheme, solved the technical problem that ventilation pipe cannot accurate control ventilation pipe outlet area in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically to an adjustable ventilation duct for civil defense projects. Background Technology

[0002] Ventilation ducts used in civil defense projects typically possess the following characteristics and advantages: they aim to optimize airflow, ensure ventilation efficiency, and adapt to diverse usage needs. Adjustable ventilation ducts play a crucial role in modern civil defense projects. They not only ensure good airflow and improve the quality of the living environment for personnel, but also respond to different climates and environmental changes through flexible adjustment functions. Their ingenious structural design, energy efficiency, environmental friendliness, and ease of maintenance make them an indispensable facility in civil defense projects.

[0003] According to a public disclosure (Publication No.: CN 211423565 U), a positioning protection device for ventilation ducts includes a device body, a first positioning block, a second positioning block, and a device mounting groove. The device body has a first sliding groove inside on the left side, and a return spring is welded to the inner wall of the left side of the first sliding groove. A first limiting rod is welded to the right side of the return spring. A buffer pad is attached to the inner wall of the right side of the first positioning block with hot melt adhesive, and the pipe body is movably connected to the inner wall of the buffer pad. A second limiting rod is welded to the bottom right side of the second positioning block.

[0004] The above-mentioned method, through the cooperation between components such as the first positioning block and the second positioning block, is insufficient to accurately control the area of ​​the ventilation duct outlet, making it difficult to optimize the ventilation effect according to actual needs, and thus requires improvement. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides an adjustable ventilation duct for civil defense projects, which solves the technical problem that the ventilation duct outlet area cannot be accurately controlled in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides an adjustable ventilation duct for civil defense engineering, comprising a rectangular connecting plate, a ventilation duct extending through the side of the rectangular connecting plate, an adjustable airflow component provided on the side of the ventilation duct, the adjustable airflow component comprising an arc groove formed on the outer wall of the ventilation duct, a support shell fixedly connected to the side of the rectangular connecting plate, a motor fixedly connected to the inner wall of the support shell, a gear fixedly connected to the output shaft of the motor, a rack one slidably connected to the inner wall of the support shell, a rack two slidably connected to the inner wall of the support shell, a connecting rod fixedly connected to the side of the rack one, an adjusting plate fixedly connected to the end of the connecting rod away from the rack one, one end of the connecting rod fixedly connected to one end of the rack two, and the side of the adjusting plate slidably connected to the inner wall of the arc groove.

[0007] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: the rack one and the gear meshing with each other, the rack two and the gear meshing with each other, and a switch provided on the surface of the motor. The design of the switch is conducive to direct control of the motor and convenient to use.

[0008] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: two connecting rods, two adjusting plates, and two arc grooves. The arc grooves are located on the displacement trajectory of the adjusting plates, and the design of the arc grooves facilitates the movement of the adjusting plates.

[0009] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: a limiting rod fixedly connected to the side of the rack, and the end of the limiting rod away from the rack is slidably connected to the inner wall of the support shell. The design of the limiting rod is beneficial to restrict the movement trajectory of the rack and prevent the movement trajectory of the rack from deviating.

[0010] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: the side of the gear is rotatably connected to the inner wall of the support shell, a filter screen is fixedly connected to the inner wall of the ventilation duct, and a filter groove is opened on the side of the filter screen. The design of the filter screen is conducive to filtering the ventilation duct and preventing dust from entering.

[0011] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: a plurality of filter grooves are provided and arranged in a circumferential array on the side of the filter screen plate; a mounting plate is fixedly connected to the top of the rectangular connecting plate; and a threaded groove is provided on the side of the mounting plate. The design of the mounting plate is conducive to installing the entire device at the required installation location.

[0012] According to another aspect, at least one embodiment of the present invention also provides an adjustable ventilation duct for civil defense engineering, including a blockage reduction component provided on the side of the rectangular connecting plate. The blockage reduction component includes a drive rod, one end of which is fixedly connected to the side of the connecting rod. An outer frame is fixedly connected to the side of the rectangular connecting plate, and a movable plate is slidably connected to the inner wall of the outer frame. A support rod is fixedly connected to the top of the movable plate, and a striking rod is fixedly connected to one end of the support rod. The striking rod is used to strike the outer wall of the ventilation duct to prevent blockage.

[0013] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: the movable plate is located on the displacement trajectory of the driving rod, the striking rod is located at the top of the ventilation duct, and a protective pad is fixedly connected to the bottom of the striking rod. The design of the protective pad helps to prevent the striking rod from damaging the ventilation duct.

[0014] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: the ventilation duct is located on the displacement trajectory of the striking rod, and a round rod is fixedly connected to the inner wall of the outer frame. The end of the round rod away from the outer frame passes through the bottom of the moving plate. The design of the round rod is beneficial to restrict the movement trajectory of the moving plate and prevent the movement trajectory of the moving plate from deviating.

[0015] For example, at least one embodiment of this utility model provides an adjustable ventilation duct for civil defense engineering, which further includes: a spring fixedly connected to the inner wall of the outer frame, and the end of the spring away from the outer frame fixedly connected to the bottom of the movable plate. The design of the spring is beneficial to the movable plate being able to automatically reset by the spring when the movable plate is not squeezed.

[0016] The beneficial effects of the embodiments of this utility model are as follows:

[0017] This invention achieves precise control of the ventilation duct's outlet area by adjusting the interaction between components such as the adjusting plate, gears, and motor within the wind power assembly. The relative movement of the two adjusting plates allows for adjustment of the wind force, optimizing ventilation according to actual needs and ensuring optimal airflow under various environments and conditions. Adjusting the outlet size avoids unnecessary energy waste. When ventilation demand is low or unnecessary, the outlet area can be reduced, thereby lowering the motor load and energy consumption, and improving the system's energy efficiency. In civil defense projects, different areas or periods may require different ventilation intensities; adjusting the airflow can meet diverse needs while enhancing the overall system's adaptability and flexibility.

[0018] This invention reduces the interaction between components such as the striking rod, driving rod, outer frame, and spring inside the blockage assembly. When the ventilation duct is blocked or dust accumulates, the striking rod automatically vibrates the outer wall of the ventilation duct to help remove impurities inside and outside the duct. This effectively reduces the blockage of the ventilation duct, ensures the continuous operation of the ventilation system, improves ventilation efficiency, avoids poor ventilation caused by duct blockage, thereby reducing the motor load and energy consumption, and improving the energy utilization rate of the entire ventilation system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a three-dimensional appearance structure diagram of one embodiment of the present invention;

[0021] Figure 2 This is a three-dimensional side view of the ventilation duct structure in one embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional magnified structural diagram of the adjustment plate in one embodiment of the present invention;

[0023] Figure 4 As one embodiment of this utility model Figure 3 A three-dimensional magnified structural diagram of B in the diagram;

[0024] Figure 5 As one embodiment of this utility model Figure 1 A three-dimensional magnified structural diagram of A.

[0025] In the diagram: 1. Rectangular connecting plate; 2. Ventilation duct; 3. Wind speed regulating component; 31. Arc groove; 32. Support shell; 33. Motor; 34. Gear; 35. Rack 1; 36. Rack 2; 37. Connecting rod; 38. Adjusting plate; 39. Limiting rod; 310. Filter screen; 311. Mounting plate; 312. Switch; 4. Blockage reduction component; 41. Driving rod; 42. Outer frame; 43. Moving plate; 44. Striking rod; 45. Protective pad; 46. Spring; 47. Round rod; 48. Support rod. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0027] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-5 As shown, an adjustable ventilation duct for civil defense engineering is illustrated in one embodiment of the present invention. It includes a rectangular connecting plate 1, with a ventilation duct 2 extending through its side. An adjustable airflow assembly 3 is provided on the side of the ventilation duct 2. The adjustable airflow assembly 3 includes an arc groove 31, which is formed on the outer wall of the ventilation duct 2. A support shell 32 is fixedly connected to the side of the rectangular connecting plate 1. A motor 33 is fixedly connected to the inner wall of the support shell 32. A gear 34 is fixedly connected to the output shaft of the motor 33. A rack 35 and a rack 36 are slidably connected to the inner wall of the support shell 32. A connecting rod 37 is fixedly connected to the side of the rack 35. An adjusting plate 38 is fixedly connected to the end of the connecting rod 37 away from the rack 35. One end of the connecting rod 37 is fixedly connected to one end of the rack 36. The side of the adjusting plate 38 is slidably connected to the inner wall of the arc groove 31.

[0033] In some examples, rack 35 and gear 34 mesh with each other, rack 36 and gear 34 mesh with each other, and a switch 312 is provided on the surface of motor 33. The design of switch 312 facilitates direct control of motor 33 and makes it convenient to use.

[0034] In some examples, there are two connecting rods 37, two adjusting plates 38, and two arc grooves 31. The arc grooves 31 are located on the displacement trajectory of the adjusting plates 38. The design of the arc grooves 31 facilitates the movement of the adjusting plates 38.

[0035] In some examples, a limiting rod 39 is fixedly connected to the side of rack 35. The end of the limiting rod 39 away from rack 35 is slidably connected to the inner wall of support shell 32. The design of the limiting rod 39 helps to limit the movement trajectory of rack 35 and prevent deviation of the movement trajectory of rack 35.

[0036] In some examples, the side of gear 34 is rotatably connected to the inner wall of support housing 32, and a filter screen 310 is fixedly connected to the inner wall of ventilation duct 2. The side of filter screen 310 is provided with filter grooves. The design of filter screen 310 is conducive to filtering ventilation duct 2 and preventing dust from entering.

[0037] In some examples, several filter slots are provided and arranged in a circumferential array on the side of the filter screen plate 310. A mounting plate 311 is fixedly connected to the top of the rectangular connecting plate 1. The side of the mounting plate 311 is provided with threaded grooves. The design of the mounting plate 311 facilitates the installation of the entire device at the desired location.

[0038] For example, such as Figures 1-5As shown, two adjusting plates 38 are provided to adjust the obstruction of the air blower of the ventilation pipe 2. The two adjusting plates 38 are adjusted and controlled by rack one 35 and rack two 36 respectively. When the motor 33 rotates forward, it drives the gear 34 to rotate forward. The gear 34 meshes with rack one 35 and rack two 36 respectively. When the gear 34 rotates forward, it drives rack one 35 and rack two 36 to move relative to each other. The relative movement of rack one 35 and rack two 36 drives the two air blowers 36 to rotate forward. The relative movement of the two connecting rods 37 causes the two adjusting plates 38 to move relative to each other, making the adjusting plates 38 slide on the inner wall of the arc groove 31. This causes the two adjusting plates 38 to move simultaneously towards the center of the arc groove 31, gradually blocking the air outlet of the ventilation pipe 2. The more the air outlet of the ventilation pipe 2 is blocked, the less airflow there will be. When it is necessary to increase the airflow, the motor 33 is started, causing it to reverse. The reverse rotation of the motor 33 will... The reverse rotation of gear 34 causes racks 35 and 36, and the two connecting rods 37 to move in opposite directions. This moves the two adjusting plates 38 away from the arc groove 31, reducing the area of ​​the ventilation duct 2 blocked by the adjusting plates 38. This allows the ventilation duct 2 to discharge a larger airflow. The relative movement of the two adjusting plates 38 allows for precise control of the outlet area of ​​the ventilation duct 2. Adjusting the airflow can optimize the ventilation effect according to actual needs, ensuring that the airflow of the ventilation duct 2 reaches its optimal state under different environments and conditions. Adjusting the size of the outlet can avoid unnecessary energy waste. When the ventilation demand is low or no ventilation is needed, the outlet area can be reduced, thereby reducing the motor load and energy consumption, and improving the system's energy efficiency. In civil defense projects, different areas or periods may require different ventilation intensities. By adjusting the airflow, different needs can be met while improving the overall system's adaptability and flexibility.

[0039] like Figures 1-5 As shown, this invention illustrates an adjustable ventilation duct for civil defense engineering in another embodiment, including a blockage reduction component 4. The blockage reduction component 4 includes a drive rod 41, one end of which is fixedly connected to the side of a connecting rod 37. An outer frame 42 is fixedly connected to the side of a rectangular connecting plate 1. A movable plate 43 is slidably connected to the inner wall of the outer frame 42. A support rod 48 is fixedly connected to the top of the movable plate 43. A striking rod 44 is fixedly connected to one end of the support rod 48. The striking rod 44 strikes the outer wall of the ventilation duct 2 to prevent blockage.

[0040] In some examples, the movable plate 43 is located on the displacement trajectory of the driving rod 41, the striking rod 44 is located at the top of the ventilation pipe 2, and the bottom of the striking rod 44 is fixedly connected to a protective pad 45. The design of the protective pad 45 helps to prevent the striking rod 44 from damaging the ventilation pipe 2.

[0041] In some examples, the ventilation pipe 2 is located on the displacement trajectory of the striking rod 44, and a round rod 47 is fixedly connected to the inner wall of the outer frame 42. The end of the round rod 47 away from the outer frame 42 passes through the bottom of the moving plate 43. The design of the round rod 47 is beneficial to restrict the movement trajectory of the moving plate 43 and prevent the movement trajectory of the moving plate 43 from deviating.

[0042] In some examples, a spring 46 is fixedly connected to the inner wall of the outer frame 42. The end of the spring 46 away from the outer frame 42 is fixedly connected to the bottom of the movable plate 43. The design of the spring 46 is to allow the movable plate 43 to automatically reset when it is not being squeezed.

[0043] For example, such as Figures 1-5 As shown, the two connecting rods 37 move in opposite directions. When one of the connecting rods 37 moves in the opposite direction, it will drive the driving rod 41 to move closer to the moving plate 43. The moving plate 43 is located on the movement trajectory of the driving rod 41. When the driving rod 41 follows the connecting rod 37 to move in the opposite direction, it will press against the moving plate 43, causing the moving plate 43 to slide upward along the outer frame 42. The upward sliding of the moving plate 43 will drive the support rod 48 and the striking rod 44 to move upward. The striking rod 44 is initially positioned on the outer wall of the ventilation duct 2, adhering to it. When the striking rod 44 moves upward, it moves away from the ventilation duct 2, causing the moving plate 43 to move upward and compress the spring 46, applying pressure. When the two connecting rods 37 move relative to each other, they drive the driving rod 41 downward. As the driving rod 41 moves downward, it stops compressing the moving plate 43, thus freeing it from pressure. This will stop compressing spring 46, releasing its pressure. Spring 46 will then automatically reset the moving plate 43, causing it to move downwards. This causes the moving plate 43 to move the support rod 48 and the striking rod 44 closer to the ventilation pipe 2. The ventilation pipe 2 is located on the movement trajectory of the striking rod 44. When the striking rod 44 moves downwards after being reset by spring 46, it will strike the outer wall of the ventilation pipe 2, vibrating down impurities and reducing the likelihood of blockage. When the ventilation pipe 2 is blocked or dusty, the striking rod 44 will automatically vibrate the outer wall of the ventilation pipe 2 to help remove impurities from inside and outside the pipe. This effectively reduces the possibility of blockage in the ventilation pipe 2, ensuring the continuous operation of the ventilation system, improving ventilation efficiency, and avoiding poor ventilation due to pipe blockage. The cleanliness of the ventilation pipe 2 directly affects the ventilation effect and energy consumption. Regular automatic cleaning avoids poor ventilation due to pipe blockage, thereby reducing the burden on the motor and energy consumption, and improving the energy utilization rate of the entire ventilation system.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable ventilation duct for civil defense engineering, characterized in that, Includes a rectangular connecting plate (1), with a ventilation pipe (2) passing through the side of the rectangular connecting plate (1), and a wind-regulating component (3) provided on the side of the ventilation pipe (2). The wind-regulating component (3) includes an arc groove (31) which is formed on the outer wall of the ventilation pipe (2). A support shell (32) is fixedly connected to the side of the rectangular connecting plate (1). A motor (33) is fixedly connected to the inner wall of the support shell (32). A gear (34) is fixedly connected to the output shaft of the motor (33). A rack (35) is slidably connected to the inner wall of the support shell (32). A rack (36) is slidably connected to the inner wall of the support shell (32). A connecting rod (37) is fixedly connected to the side of the rack (35). An adjusting plate (38) is fixedly connected to the end of the connecting rod (37) away from the rack (35). One end of the connecting rod (37) is fixedly connected to one end of the rack (36). The side of the adjusting plate (38) is slidably connected to the inner wall of the arc groove (31).

2. The adjustable ventilation duct for civil defense engineering according to claim 1, characterized in that, The rack one (35) and the gear (34) mesh with each other, the rack two (36) and the gear (34) mesh with each other, and the motor (33) has a switch (312) on its surface.

3. The adjustable ventilation duct for civil defense engineering according to claim 2, characterized in that, There are two connecting rods (37), two adjusting plates (38), and two arc grooves (31). The arc grooves (31) are located on the displacement trajectory of the adjusting plates (38).

4. An adjustable ventilation duct for civil defense engineering according to claim 3, characterized in that, A limiting rod (39) is fixedly connected to the side of the rack (35), and the end of the limiting rod (39) away from the rack (35) is slidably connected to the inner wall of the support shell (32).

5. An adjustable ventilation duct for civil defense engineering according to claim 4, characterized in that, The side of the gear (34) is rotatably connected to the inner wall of the support shell (32), and a filter screen plate (310) is fixedly connected to the inner wall of the ventilation pipe (2). The side of the filter screen plate (310) is provided with a filter groove.

6. An adjustable ventilation duct for civil defense engineering according to claim 5, characterized in that, The filter slots are provided in a plurality of manner and are arranged in a circumferential array on the side of the filter screen plate (310). The top of the rectangular connecting plate (1) is fixedly connected to the mounting plate (311), and the side of the mounting plate (311) is provided with a threaded groove.

7. An adjustable ventilation duct for civil defense engineering according to claim 6, characterized in that, The rectangular connecting plate (1) is provided with a blockage reduction component (4) on its side. The blockage reduction component (4) includes a drive rod (41). One end of the drive rod (41) is fixedly connected to the side of the connecting rod (37). An outer frame (42) is fixedly connected to the side of the rectangular connecting plate (1). A movable plate (43) is slidably connected to the inner wall of the outer frame (42). A support rod (48) is fixedly connected to the top of the movable plate (43). A striking rod (44) is fixedly connected to one end of the support rod (48).

8. An adjustable ventilation duct for civil defense engineering according to claim 7, characterized in that, The movable plate (43) is located on the displacement trajectory of the driving rod (41), the striking rod (44) is located at the top of the ventilation pipe (2), and a protective pad (45) is fixedly connected to the bottom of the striking rod (44).

9. An adjustable ventilation duct for civil defense engineering according to claim 8, characterized in that, The ventilation pipe (2) is located on the displacement trajectory of the striking rod (44), and a round rod (47) is fixedly connected to the inner wall of the outer frame (42). The end of the round rod (47) away from the outer frame (42) passes through the bottom of the moving plate (43).

10. An adjustable ventilation duct for civil defense engineering according to claim 9, characterized in that, A spring (46) is fixedly connected to the inner wall of the outer frame (42), and the end of the spring (46) away from the outer frame (42) is fixedly connected to the bottom of the movable plate (43).

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