Filter screen mounting structure of civil air defense ventilation pipe

Abstract

The utility model discloses a civil air defense ventilation pipe filter screen installation structure, which comprises an installation pipeline, the installation pipeline comprises two buckling pieces, a filter screen and a fixing piece, one ends of the two buckling pieces are hinged, when the two buckling pieces are buckled, a pipe body can be formed, the pipe body is used for being connected with the civil air defense ventilation pipe, and the filter screen is arranged on the installation pipeline. A mounting position for mounting the filter screen is arranged between the two buckling pieces, and the fixing piece is used for fixing the two buckling pieces in a buckling state; according to the device, the filter screen is fixed by utilizing a rotary closing mechanism of the fastener, so that the mounting and dismounting processes of the filter screen are simplified, the mounting stability of the filter screen is ensured, and the efficient and safe operation of the whole system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a people's air defense engineering facility technical field, concretely relates to a filter screen mounting structure of people's air defense ventilation pipe. BACKGROUND

[0002] People's air defense ventilation pipe is an important part of people's air defense engineering, used to ensure air circulation and protect people's life safety. It circulates indoor air, discharges dirty air and inhales clean air, thereby ensuring that indoor air quality reaches the comfortable standard. In addition, people's air defense ventilation pipe can quickly start in wartime or emergency situations, introducing fresh air from outside into the engineering interior while discharging internal dirty air and harmful gases, providing necessary survival conditions for personnel. In a closed people's air defense facility, factors such as personnel concentration, oxygen consumption, and carbon dioxide emission can easily lead to air turbidity, oxygen deficiency, and other adverse consequences. Through the ventilation pipe system, indoor air can be circulated, dirty air can be discharged, and clean air can be inhaled to ensure that indoor air quality reaches the comfortable standard. In the event of air pollution or chemical reactions, appropriate ventilation can discharge harmful gases and smoke, reduce toxic gas concentration, and protect people's life and health. When the pressure inside and outside the building is unbalanced, the ventilation system will form a certain negative pressure, allowing the indoor and outdoor pressures to balance, thereby preventing the building structure from deforming and cracking due to negative pressure.

[0003] Publication No. CN221384953U provides a ventilation filter device based on people's air defense engineering, including ventilation pipe, fixed plate, ventilation fan, filter screen and connecting mechanism, the fixed plate is fixedly connected to the middle part of the top and bottom of the front side of the ventilation pipe inner cavity, the ventilation fan is embedded in the front side of the fixed plate, the filter screen is fixedly connected to the top and bottom of the inner cavity of the ventilation pipe through the connecting mechanism, the middle part of the left and right sides of the top of the ventilation pipe is fixedly connected with the connecting block, the ventilation filter device based on people's air defense engineering, when the filter screen needs to be disassembled, pull the pull rod, so that the left and right part of the clamping block is far away from each other, extrude the return spring, so that the clamping block exits the inside of the clamping groove, release the fixation of the filter screen, then pull the handle, pull out the filter screen, avoid using bolts to fix the filter screen.

[0004] Although the existing plug-in type clamping filter screen provides convenience in installation and disassembly, it also has defects: the filter screen is directly fixed on the ventilation pipe by plug-in buckle, and the connection between the filter screen and the ventilation pipe may become loose after long-term use. The buckle may loosen or even break in the case of long-term use or frequent plugging and unplugging, which will cause the filter screen to fall off, affect air quality, and possibly damage the ventilation equipment, thereby reducing the filtering efficiency. UTILITY MODEL CONTENTS

[0005] The utility model discloses a filter screen mounting structure of civil air defence ventilation pipe, which overcomes the above technical defects and solves the technical problem that the buckle may be loosened or even broken in the case of long-term use or frequent plugging and unplugging, which leads to filter screen falling off, affects air quality, may cause damage to the ventilation equipment and reduces the filtering efficiency.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a filter screen mounting structure of civil air defence ventilation pipe, it includes: installation pipeline, installation pipeline includes two buckling pieces, filter screen and fixed part, and the both ends of two buckling pieces are hinged, and when two buckling pieces are buckled, can form a pipe body, the pipe body is used for accessing civil air defence ventilation pipe, and the installation position for installing filter screen is arranged between two buckling pieces, and the fixed part is used for fixing two buckling pieces in buckled state.

[0008] In some embodiments, the installation pipeline further includes two side pipes, two side pipes are arranged on the two sides of the buckling piece respectively, and are fixedly connected with the two sides of one of the buckling pieces, when two buckling pieces are fixed in buckled state, the side edges of the other buckling piece are tightly matched with two side pipes.

[0009] In some embodiments, the outer wall diameter of two buckling pieces in buckled state is greater than the outer wall diameter of the side pipe, and the positions corresponding to the outer wall of the side pipe on the two sides of the buckling piece are provided with outwardly extending outer edges, the outer edges are sleeved on the outer side of the side pipe, and the connecting angle between the buckling piece and the outer edge is provided with an elastic sealing gasket.

[0010] In some embodiments, at least one pipeline connecting piece is further included, at least one pipeline connecting piece is fixedly connected with the side pipe, and the installation pipeline is connected with the civil air defence ventilation pipe through the pipeline connecting piece.

[0011] In some embodiments, the pipeline connecting piece includes a flange plate, the flange plate is arranged at the end of the installation pipeline, a plurality of uniformly distributed bolt holes are arranged on the flange plate, and the installation pipeline and the civil air defence ventilation pipe are connected through the bolt holes.

[0012] In some embodiments, a pipeline sealing gasket is arranged between the pipeline connecting piece and the civil air defence ventilation pipe.

[0013] In some embodiments, the shape structure of two buckling pieces is same, and both are semicircular.

[0014] In some embodiments, the fixing member comprises a first fixing plate, a second fixing plate and a fixing bolt, the first fixing plate and the second fixing plate are arranged at one end of the two buckling members respectively, and the fixing bolt passes through the first fixing plate and the second fixing plate to fixedly connect the two buckling members.

[0015] In some embodiments, an end of the fixing bolt is provided with a rotating handle.

[0016] In some embodiments, the inner wall of the buckling member is provided with a clamping groove and a movable frame, the movable frame is detachably mounted in the clamping groove, and the inner side of the two movable frames is provided with a mounting groove for placing the outer edge of the filter screen.

[0017] Compared with the prior art, the filter screen mounting structure of the civil air defense ventilation pipe provided by the utility model has the advantages that two buckling members, a filter screen and a fixing member are arranged, one end of the two buckling members is connected through a hinge, when the two buckling members are closed, they jointly form a pipe body for connecting the civil air defense ventilation pipe, an installation position for mounting the filter screen is arranged between the two buckling members, the buckling member clamps the filter screen in a rotating closing mode, thereby realizing the mounting of the filter screen, the fixing member is used for firmly locking the two buckling members in the closed state, and the stability and functionality of the whole device are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the three-dimensional structure schematic view of the filter screen mounting structure of the civil air defense ventilation pipe provided by the utility model embodiment;

[0019] Figure 2 is the front view structure schematic view of the filter screen mounting structure of the civil air defense ventilation pipe provided by the utility model embodiment;

[0020] Figure 3 is the side view sectional structure schematic view of the filter screen mounting structure of the civil air defense ventilation pipe provided by the utility model embodiment;

[0021] Figure 4 is the front view sectional structure schematic view of the filter screen mounting structure of the civil air defense ventilation pipe provided by the utility model embodiment;

[0022] Figure 5 is the sectional structure schematic view of the sealing structure of the filter screen mounting structure of the civil air defense ventilation pipe provided by the utility model embodiment.

[0023] EXPLANATION OF REFERENCE NUMERALS:

[0024] 1, installation pipeline; 11, buckle; 111, connecting sealing pad; 112, clamping groove; 113, movable frame; 12, filter screen; 13, fixing part; 131, first fixed plate; 132, second fixed plate; 133, fixed bolt; 134, rotating handle; 14, side pipe;

[0025] 2, pipeline connecting part; 21, flange;

[0026] 3, civil air defense ventilation pipe. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0028] In order to solve the technical problem that the buckle may be loosened or even broken in the case of long-term use or frequent plugging and unplugging, which will lead to the filter screen falling off, affect the air quality, and possibly cause damage to the ventilation equipment, and further reduce the filtering efficiency, the utility model provides a filter screen mounting structure of civil air defense ventilation pipe, which uses the rotating closure mechanism of the buckle to fix the filter screen, not only simplifies the installation and disassembly process of the filter screen, but also ensures the stability of the filter screen installation, thereby ensuring the efficient and safe operation of the whole system.

[0029] Please refer to Figures 1 to 3 , the filter screen mounting structure of civil air defense ventilation pipe comprises: an installation pipeline 1, the installation pipeline 1 comprises two buckles 11, a filter screen 12 and a fixing part 13, one end of the two buckles 11 is hinged, when the two buckles 11 are buckled, a pipe body can be formed, the pipe body is used for connecting into the civil air defense ventilation pipe 3, an installation position for installing the filter screen 12 is arranged between the two buckles 11, and the fixing part 13 is used for fixing the two buckles 11 in the buckled state.

[0030] In the device, one end of the two buckles 11 is designed to be hinged together, when they are buckled together, a complete pipe body structure can be formed, the pipe body structure is designed to be connected into the ventilation pipeline in the civil air defense ventilation system, in order to ensure that the filter screen 12 can be correctly installed, an installation position is arranged between the two buckles 11, which is just suitable for the size and shape of the filter screen 12, in order to maintain the stability of the buckles 11 in the buckled state, a corresponding fixing part 13 is designed, the fixing part 13 is used for firmly fixing the two buckles 11 in the buckled state, and ensures the stability and functionality of the whole device.

[0031] Please refer to Figure 2 and Figure 4In some possible embodiments, the installation pipeline 1 further comprises two side pipes 14, the buckle 11 is arranged between the two side pipes 14, a part of the two side pipes 14 are connected to each other through the buckle 11, and the remaining part forms the opening, and the filter screen 12 can be installed at the opening position. Therefore, when the other buckle 11 is opened, an opening is formed between the two side pipes 14 for taking and placing the filter screen 12, and when the two buckles 11 are fixed in the buckled state, the side edges of the other buckle 11 are tightly matched with the two side pipes 14, the opening can be sealed, and the filter screen 12 is pressed.

[0032] Please refer to Figures 3 to 5 In order to ensure that the buckle 11 and the side pipe 14 can maintain good sealing effect, in the embodiment, the two side walls of the buckle 11 are provided with a connecting sealing pad 111, so as to prevent leakage that may occur during operation of the pipeline system, and ensure stable sealing state during work.

[0033] Further, the outer wall diameter of the two buckles 11 in the buckled state is greater than the outer wall diameter of the side pipe 14, and the outer edges extending outward are designed at the positions corresponding to the outer walls of the side pipe 14 on the two sides of the buckle 11, the outer edges are sleeved on the outer side of the side pipe 14, a sleeving type matching structure is formed, and the connecting sealing pad 111 is arranged at the connecting corner of the buckle 11 and the outer edge, so as to ensure that the buckle 11 and the side pipe 14 can be effectively sealed, and prevent leakage of liquid or gas.

[0034] Please refer to Figure 1 and Figure 2 In some possible embodiments, the installation pipeline 1 is provided with a pipeline connector 2 at both ends, the two pipeline connectors 2 are respectively fixedly connected with the side pipes 14, so as to connect the side pipes 14 and the civil air defense ventilation pipe 3, so that the two ends of the installation pipeline 1 can be connected with the civil air defense ventilation pipe 3 through the pipeline connector 2. It is ensured that the installation pipeline 1 and the civil air defense ventilation pipe 3 can be connected and sealed, therefore, the device can be installed on the civil air defense ventilation pipe 3 through the pipeline connector 2, without the need to additionally provide a filter screen 12 installation structure on the civil air defense ventilation pipe 3, which simplifies the installation process, reduces the installation cost, and improves the installation efficiency. At the same time, the device can adapt to civil air defense ventilation pipes 3 of different specifications and sizes, increase the interchangeability and compatibility between different civil air defense ventilation pipes 3, and facilitate replacement of the filter screen 12.

[0035] Please refer to Figures 2 to 4In the embodiment, the pipe connectors 2 each include a flange 21. The flange 21 is provided with two bolt holes which are evenly distributed, and is mounted at the end of each side pipe 14. Thus, the mounting pipe 1 can be conveniently connected with the air defense ventilation pipe 3.

[0036] It should be noted that the two side pipes 14 are connected with each other by one of the buckling members 11, and the three form an integrated structure, improving the stability and reliability of the entire device. The size of the flange 21 can be adjusted according to the size of the air defense ventilation pipe 3, to ensure the sealing and stability between the mounting pipe 1 and the air defense ventilation pipe 3.

[0037] In further embodiments, in order to ensure the tightness of the connection and prevent gas leakage, a pipe sealing gasket is designed and installed between the pipe connector 2 and the air defense ventilation pipe 3.

[0038] Please refer to Figure 3 In some possible embodiments, in order to facilitate the installation of the filter screen 12, the two buckling members 11 have the same shape and structure, and are designed in a semi-annular shape. The combination of the two buckling members 11 forms an annular structure, and the semi-annular buckling members 11 can completely wrap around the corresponding part of the filter screen 12 after combination, ensuring the sealing and stability.

[0039] Please refer to Figure 3 In some possible embodiments, the fixing member 13 includes a first fixing plate 131, a second fixing plate 132, and a fixing bolt 133. The first fixing plate 131 and the second fixing plate 132 are respectively provided at one end of the two buckling members 11, and the fixing bolt 133 penetrates the first fixing plate 131 and the second fixing plate 132 to fixedly connect the two buckling members 11. To achieve this connection, the fixing bolt 133 is screwed with the second fixing plate 132 after penetrating the first fixing plate 131, thereby tightly connecting the buckling member 11 with the buckling member 11, ensuring the stability of the connection part. In order to facilitate operation, the end of the fixing bolt 133 is also provided with a rotating handle 134, which allows the user to easily rotate the bolt, thereby quickly adjusting or tightening the connection part, improving work efficiency and operational convenience. In addition, a sealing material such as a rubber gasket is provided between the two buckling members 11 to ensure that there is no leakage at the connection between the two, further improving the sealing performance of the entire device.

[0040] Please refer to Figure 5, the filter screen 12 is also prone to dust accumulation at the installation position thereof during use, in order to facilitate the cleaning of the dust, in some possible embodiments, the buckle 11 and the inner wall of the buckle 11 are provided with clamping grooves 112 and movable frames 113, the movable frames 113 are detachably installed in the clamping grooves 112, specifically, the movable frames 113 are clamped in the clamping grooves 112, the inner sides of the two movable frames 113 are provided with mounting grooves for placing the outer edges of the filter screen 12, so that the filter screen 12 can be stably installed in the appropriate position, and subsequent cleaning or replacement of the filter screen 12 is facilitated. The design facilitates the user to clean or replace the filter screen 12, so as to maintain the good running state of the whole device. At the same time, the cooperation structure of the clamping groove 112 and the movable frame 113 also ensures the stability of the filter screen 12 after installation, avoiding the problems of shaking or falling during use.

[0041] It can be understood that, in some embodiments, the clamping grooves 112 and the movable frames 113 can be provided with one or more, and the specific number can be adjusted according to actual needs.

[0042] Working principle: in actual application, first, the movable frame 113 is firmly installed in the clamping groove 112 of the buckle 11, then the filter screen 12 is placed in the movable frame 113 through the opening, so as to be installed on the installation pipe 1, next, the buckle 11 is rotated until the opening between the two side pipes 14 is closed, then the fixed bolt 133 is passed through the first fixed plate 131 and screwed to the second fixed plate 132 by rotating the handle 134, so that the filter screen 12 is firmly pressed. When it is necessary to clean or replace the filter screen 12, the fixed bolt 133 is loosened by rotating the handle 134, and is screwed out of the second fixed plate 132, and then the buckle 11 is opened, so that the filter screen 12 and the movable frame 113 can be directly taken out.

[0043] The utility model discloses a filter screen installation device for air defense ventilation pipe, which comprises an installation pipe 1, a filter screen 12 and a fixing piece 13, wherein the installation pipe 1 is provided with two side pipes 14, and the two side pipes 14 are connected through a connecting pipe 15, and the connecting pipe 15 is provided with an opening, and the filter screen 12 is arranged in the opening, and the filter screen 12 is provided with a plurality of filter holes, and the filter screen 12 is provided with a buckle 11, and the buckle 11 is provided with a first fixed plate 131 and a second fixed plate 132, and the first fixed plate 131 and the second fixed plate 132 are connected through a rotating handle 134, and the rotating handle 134 is provided with a fixed bolt 133, and the fixed bolt 133 is arranged on the first fixed plate 131 and the second fixed plate 132.

[0044] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise expressly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] It should be noted that in the present application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0046] The specific embodiments of the above-mentioned utility model do not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A filter installation structure for a civil defense ventilation duct, characterized in that, The installation pipeline comprises two buckling members, a filter screen and a fixing member, one end of the two buckling members is hinged, and a pipe body is formed when the two buckling members are buckled, the pipe body is used for connecting to a civil air defense ventilation pipe, an installation position for installing the filter screen is arranged between the two buckling members, and the fixing member is used for fixing the two buckling members in the buckled state. The installation pipeline further comprises two side pipes, the two side pipes are arranged on the two sides of the buckling members respectively, and are fixedly connected to the two sides of one of the buckling members, when the two buckling members are fixed in the buckled state, the side edges of the other buckling member are in close fit with the two side pipes.

2. The filter mounting structure for a civil defense ventilation duct according to claim 1, wherein The outer wall diameter of the two buckling members in the buckled state is greater than the outer wall diameter of the side pipes, and the positions corresponding to the outer walls of the side pipes on the two sides of the buckling members are provided with outwardly extending outer edges, the outer edges are sleeved on the outer sides of the side pipes, and elastic sealing gaskets are arranged at the connection angles of the buckling members and the outer edges.

3. The filter mounting structure for a civil defense ventilation duct according to claim 2, wherein The installation pipeline further comprises at least one pipeline connecting member, the at least one pipeline connecting member is fixedly connected to the side pipes, and the installation pipeline is connected to the civil air defense ventilation pipe through the pipeline connecting member.

4. The filter mounting structure for a civil defense ventilation duct according to claim 3, wherein The pipeline connecting member comprises a flange plate, the flange plate is arranged at the end of the installation pipeline, a plurality of bolt holes are arranged on the flange plate and are uniformly distributed, and the installation pipeline is connected to the civil air defense ventilation pipe through the bolt holes.

5. The filter mounting structure for a civil defense ventilation duct according to claim 4, wherein A pipeline sealing gasket is arranged between the pipeline connecting member and the civil air defense ventilation pipe.

6. The filter mounting structure for a civil defense ventilation duct according to claim 4, wherein The two buckling members are of the same shape and structure and are in the form of a half ring.

7. The filter mounting structure for a civil defense ventilation duct according to claim 1, wherein The fixing member comprises a first fixing plate, a second fixing plate and a fixing bolt, the first fixing plate and the second fixing plate are arranged at one end of the two buckling members respectively, and the fixing bolt passes through the first fixing plate and the second fixing plate to fixedly connect the two buckling members.

8. The filter mounting structure for a civil defense ventilation duct according to claim 1, wherein The end of the fixing bolt is provided with a rotating handle.

9. The filter mounting structure for a civil defense ventilation duct according to claim 8, wherein The inner wall of the buckling member is provided with a clamping groove and a movable frame, the movable frame is detachably installed in the clamping groove, the inner side of the two movable frames is provided with an installation groove for placing the outer edge of the filter screen.

10. The filter mounting structure for a civil defense ventilation duct according to claim 1, wherein ​

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