Dust isolation structure of civil air defense engineering

Abstract

The utility model discloses a dust isolation structure of civil air defence engineering relates to civil air defence engineering technical field, the utility model discloses an isolation wall body, the isolation wall body front hinged mounting has the isolation door, install the ventilation pipe on the isolation door, the isolation wall body front is provided with the notched, still include: locking mechanism, locking mechanism sets up the outside of isolation wall body, the utility model discloses a locking mechanism is set up, specifically is isolation door push -on closing, the buckle lever and buckle strip cooperation plug -in will isolation door limit fixed, prevent appearing voluntary movement, then clockwise rotation handle no.

Description

Technical Field

[0001] This utility model belongs to the field of civil defense engineering technology, and in particular relates to a dust isolation structure for civil defense engineering. Background Technology

[0002] Dust isolation structures in civil defense projects are an important part of the protection system. They are mainly used to prevent harmful dust from the outside (such as radioactive dust from nuclear explosions, chemical dust, fire smoke, etc.) from entering the interior of the project, ensuring the survival of personnel and the safety of equipment. They are usually sealed by doors and door frames.

[0003] Traditional doors have complex locking mechanisms installed inside to fix them to the door frame, usually using bolts. This method not only causes slight shaking of the door, resulting in poor sealing, but also allows the door to move on its own after it is connected to the door frame. This often causes the door to shift when it is fixed, requiring workers to continuously push the door before locking it. This method is not only difficult to lock quickly, but the poor sealing also allows dust to leak out. Utility Model Content

[0004] The purpose of this utility model is to provide a dust isolation structure for civil defense projects. By setting a locking mechanism, specifically, when the isolation door is pushed to close, the latch rod and latch strip engage to restrict and fix the isolation door, preventing it from moving on its own. Then, turning the handle clockwise causes the threaded rod to rotate, which pushes the extrusion block towards the extrusion rod, and can quickly lock and fix the isolation door. The operation is simpler and more convenient, and the production cost is lower. It solves the problem of the traditional door fixing method using pins, which not only causes slight shaking of the door and poor sealing effect, but also requires the staff to continuously push the door and perform the locking operation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a dust isolation structure for civil defense engineering, comprising an isolation wall, an isolation door hinged to the front of the isolation wall, a ventilation pipe installed on the isolation door, and a slot formed on the front of the isolation wall, and further comprising: A locking mechanism, disposed on the outside of the isolation wall, is used to lock and secure the isolation door; and A sealing mechanism is disposed inside the ventilation duct and is used to open or close the ventilation duct. The isolation door is fixedly connected to a compression rod on the right side, and a buckle rod is fixedly connected to the inner side of the compression rod. A sealing strip is fitted on the back of the isolation door.

[0006] Furthermore, the locking mechanism includes two fixing blocks fixedly connected to the isolation wall and a pressing block slidably connected to the surface of the isolation wall; and A latching assembly is disposed inside a slot and is used to secure and fix the isolation door. The extrusion rod and the extrusion block are both inclined on the side that are close to each other, and the inclined surface on the extrusion rod is in contact with the inclined surface on the extrusion block.

[0007] Furthermore, the fixing block has a threaded rod connected internally, a handle is fixedly connected to the right side of the threaded rod, a limit ring is fixedly connected to the right side of the pressing block, and the left side of the threaded rod is rotatably connected to the limit ring; the fixing block and the isolation wall are integrally set, and the fixing block is used to support the threaded rod. Furthermore, the buckle assembly includes a buckle strip hinged inside the slot, and a plurality of springs are fixedly connected to the outer side of the buckle strip. The right side of the springs is fixedly connected to the inner wall of the slot. The springs are used to apply elastic force to the buckle strip so that the buckle strip can fit tightly against the buckle rod. The back of the extrusion block contacts the front of the isolation wall to serve as a limit, and the extrusion rod is L-shaped.

[0008] Furthermore, the front of the buckle strip is triangular, the buckle rod is L-shaped, the side of the buckle rod facing the buckle strip is round, and a circular groove is provided on the inner side of the buckle strip, which is compatible with the circular rod on the buckle rod.

[0009] Furthermore, the sealing mechanism includes a bracket fixedly connected to the inner wall of the ventilation duct, a sealing disc being provided on the back of the bracket, a threaded rod II being threadedly connected to the center of the bracket, and a throttle II being fixedly connected to the front of the threaded rod II; the bracket is installed on the inner wall of the ventilation duct by welding, and the bracket is used to support the threaded rod II and the sealing disc. The second throttle is used to drive the second threaded rod to rotate, and the diameter of the sealing disc is smaller than the inner diameter of the ventilation pipe.

[0010] Furthermore, a sealing ring is fitted on the back of the sealing disc, and a limiting ring two is fixedly connected to the front of the sealing disc. The back of the threaded rod two is rotatably connected to the inner wall of the limiting ring two. The sealing ring is installed on the sealing disc by means of adhesive. The sealing ring improves the sealing effect after contacting the ventilation pipe.

[0011] The threaded rod II, when in motion, cooperates with the limiting ring II to pull or push the sealing disc.

[0012] Furthermore, the back of the sealing ring contacts the inner wall of the ventilation duct, and the sealing disc is disc-shaped.

[0013] This utility model has the following beneficial effects: 1. This utility model features a locking mechanism. Specifically, when the isolation door is pushed to close, the latch rod and latch strip engage to restrict and fix the isolation door, preventing it from moving on its own. Then, turning the handle clockwise causes the threaded rod to rotate, pushing the extrusion block towards the extrusion rod. The inclined surface on the extrusion rod causes the sealing strip on the isolation door to adhere tightly to the isolation wall, achieving a good sealing effect. This method allows for quick and easy locking of the isolation door, making operation simpler and more convenient, and reducing production costs.

[0014] 2. This utility model features a sealing mechanism. Specifically, rotating the second handle counterclockwise causes the second threaded rod to rotate, at which point the sealing disc moves the sealing ring away from the inner wall of the ventilation pipe, allowing the ventilation pipe to circulate air for ventilation. Rotating the second handle clockwise causes the sealing disc to move the sealing ring into contact with the inner wall of the ventilation pipe, sealing the ventilation pipe. This method allows for the opening or closing of the ventilation pipe according to different needs, ensuring that subsequent ventilation can be carried out.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the ventilation duct of this utility model; Figure 3 This is a schematic diagram of the front structure of the isolation wall of this utility model; Figure 4 This is a schematic diagram of the internal cross-sectional structure of the isolation wall of this utility model; Figure 5 This utility model Figure 4 A magnified structural diagram of A in the diagram.

[0018] The attached diagram lists the components represented by each number as follows: 1. Isolation wall; 11. Isolation door; 111. Extrusion rod; 112. Buckle rod; 12. Ventilation pipe; 13. Groove; 2. Locking mechanism; 21. Fixing block; 211. Threaded rod one; 212. Turn handle one; 213. Limiting ring one; 22. Extrusion block; 23. Buckle assembly; 231. Buckle strip; 232. Spring; 3. Sealing mechanism; 31. Bracket; 32. Sealing disc; 321. Sealing ring; 322. Limiting ring two; 33. Threaded rod two; 34. Turn handle two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figures 1-5 As shown, this utility model is a dust isolation structure for civil defense engineering, including an isolation wall 1, an isolation door 11 hinged to the front of the isolation wall 1, a ventilation pipe 12 installed on the isolation door 11, and a slot 13 opened on the front of the isolation wall 1. It also includes: Locking mechanism 2, located on the outside of the isolation wall 1, is used to lock and fix the isolation door 11; and Sealing mechanism 3 is installed inside ventilation pipe 12 and is used to open or close ventilation pipe 12. Among them, a compression rod 111 is fixedly connected to the right side of the isolation door 11, a buckle rod 112 is fixedly connected to the inner side of the compression rod 111, and a sealing strip is fitted on the back of the isolation door 11.

[0021] The locking mechanism 2 includes two fixing blocks 21 fixedly connected to the isolation wall 1 and a pressing block 22 slidably connected to the surface of the isolation wall 1; and The latching assembly 23 is disposed inside the slot 13 and is used to restrict and fix the isolation door 11. The sides of the extrusion rod 111 and the extrusion block 22 that are close to each other are both inclined, and the inclined surface on the extrusion rod 111 is in contact with the inclined surface on the extrusion block 22.

[0022] The fixed block 21 has a threaded rod 211 internally threaded, and a handle 212 is fixedly connected to the right side of the threaded rod 211. The right side of the pressing block 22 is fixedly connected to a limit ring 213, and the left side of the threaded rod 211 is rotatably connected to the limit ring 213. The latching assembly 23 includes a latching strip 231 hinged inside the slot 13. Several springs 232 are fixedly connected to the outside of the latching strip 231. The right side of the springs 232 is fixedly connected to the inner wall of the slot 13. When the isolation door 11 is pushed to close, the latching rod 112 engages with the latching strip 231 to restrict and fix the isolation door 11, preventing it from moving on its own. Then, the handle 212 is turned clockwise to drive the threaded rod 211 to rotate. The pressing block 22 is pushed towards the pressing rod 111, and the inclined surface on the pressing rod 111 is pressed. At this time, the sealing strip on the isolation door 11 will be tightly attached to the isolation wall 1, thereby achieving a good sealing effect. This method can quickly lock and fix the isolation door 11, making the operation simpler and more convenient, and the production cost is lower. The back of the extrusion block 22 contacts the front of the isolation wall 1 to serve as a limit, and the extrusion rod 111 is L-shaped.

[0023] The front of the buckle strip 231 is triangular, the buckle rod 112 is L-shaped, and the side of the buckle rod 112 facing the buckle strip 231 is round. The buckle strip 231 has a circular groove on its inner side, and the circular groove is adapted to the circular rod on the buckle rod 112.

[0024] The sealing mechanism 3 includes a bracket 31 fixedly connected to the inner wall of the ventilation duct 12. A sealing disc 32 is provided on the back of the bracket 31. A threaded rod 33 is threadedly connected to the center of the bracket 31. A handle 34 is fixedly connected to the front of the threaded rod 33. When the handle 34 is rotated counterclockwise, the threaded rod 33 rotates. At this time, the sealing disc 32 will move the sealing ring 321 away from the inner wall of the ventilation duct 12, and the ventilation duct 12 can then circulate air for ventilation. When the handle 34 is rotated clockwise, the sealing disc 32 will move the sealing ring 321 to contact the inner wall of the ventilation duct 12, sealing the ventilation duct 12. This method allows the ventilation duct 12 to be opened or closed according to different needs, ensuring that ventilation can be carried out subsequently. Among them, the throttle 34 is used to drive the threaded rod 33 to rotate, and the diameter of the sealing disc 32 is smaller than the inner diameter of the ventilation pipe 12.

[0025] A sealing ring 321 is fitted on the back of the sealing disc 32, and a second limiting ring 322 is fixedly connected to the front of the sealing disc 32. The back of the threaded rod 33 is rotatably connected to the inner wall of the second limiting ring 322. Among them, the threaded rod 33 cooperates with the limiting ring 322 during movement to pull or push the sealing disc 32; the back of the sealing ring 321 contacts the inner wall of the ventilation pipe 12, and the sealing disc 32 is disc-shaped.

[0026] One specific application of this embodiment is: When dust prevention is required, push and rotate the isolation door 11 to seal the entrance of the isolation wall 1. The sealing strip on the isolation door 11 will then contact the surface of the isolation wall 1. At this time, the latching rod 112 on the long rod 111 will engage with the latching strip 231. Since the front of the latching strip 231 is triangular, the latching rod 112 will push it when it contacts the latching strip 231. The latching strip 231 will then pull itself. When the round part on the latching rod 112 aligns with the round groove on the inner side of the latching strip 231, the latching strip 231 will return to its original position due to the elastic force of the spring 232 and engage with the latching rod. With the cooperation of 112, the isolation door 11 is restricted and fixed. At this time, the isolation door 11 will not move on its own. Then, turn the handle 212 clockwise to drive the threaded rod 211 to rotate. The pressing block 22 will be pushed towards the pressing rod 111. When the pressing block 22 contacts the pressing rod 111, it will push the pressing rod 111 towards the isolation wall 1 through the inclined surface on the pressing rod 111, and drive the isolation door 11 to move together. At this time, the sealing strip on the isolation door 11 will be tightly attached to the isolation wall 1, thereby achieving a good sealing effect. This method can quickly lock and fix the isolation door 11, and the operation is simple and convenient. When ventilation is possible, the second handle 34 can be turned counterclockwise to drive the second threaded rod 33 to rotate. The second threaded rod 33 will pull the sealing disc 32 forward through the cooperation of the convex shaft and the second limiting ring 322. At this time, the sealing disc 32 will drive the sealing ring 321 away from the inner wall of the ventilation pipe 12, so that the ventilation pipe 12 can circulate air for ventilation. When it is necessary to seal the ventilation pipe 12, the second handle 34 can be turned clockwise to push the sealing disc 32 backward, so that the sealing ring 321 contacts and squeezes the inner wall of the ventilation pipe 12, thereby sealing the ventilation pipe 12 and preventing dust from entering.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust isolation structure for civil defense engineering, comprising an isolation wall (1), wherein an isolation door (11) is hinged to the front of the isolation wall (1), a ventilation pipe (12) is installed on the isolation door (11), and a slot (13) is provided on the front of the isolation wall (1), characterized in that, Also includes: A locking mechanism (2) is provided on the outside of the isolation wall (1) and is used to lock and fix the isolation door (11); and A sealing mechanism (3) is provided inside the ventilation pipe (12) and is used to open or close the ventilation pipe (12); The isolation door (11) is fixedly connected to a compression rod (111) on the right side, and a buckle rod (112) is fixedly connected to the inner side of the compression rod (111). A sealing strip is fitted on the back of the isolation door (11).

2. The dust isolation structure for civil defense engineering according to claim 1, characterized in that, The locking mechanism (2) includes two fixing blocks (21) fixedly connected to the isolation wall (1) and a pressing block (22) slidably connected to the surface of the isolation wall (1); and The latching assembly (23) is disposed inside the slot (13) and is used to restrict and fix the isolation door (11); The extrusion rod (111) and the extrusion block (22) are both inclined on the side that are close to each other, and the inclined surface on the extrusion rod (111) is in contact with the inclined surface on the extrusion block (22).

3. The dust isolation structure for civil defense engineering according to claim 2, characterized in that, The fixed block (21) is internally threaded with a threaded rod (211), and a throttle (212) is fixedly connected to the right side of the threaded rod (211). A limit ring (213) is fixedly connected to the right side of the pressing block (22), and the threaded rod (211) is rotatably connected to the limit ring (213) on the left side. The buckle assembly (23) includes a buckle strip (231) hinged inside the slot (13), and a plurality of springs (232) are fixedly connected to the outside of the buckle strip (231). The right side of the springs (232) is fixedly connected to the inner wall of the slot (13). The back of the extrusion block (22) contacts the front of the isolation wall (1) to serve as a limit, and the extrusion rod (111) is L-shaped.

4. The dust isolation structure for civil defense engineering according to claim 3, characterized in that, The front of the buckle strip (231) is triangular, the buckle rod (112) is L-shaped, the side of the buckle rod (112) facing the buckle strip (231) is round, and a circular groove is provided on the inner side of the buckle strip (231), and the circular groove is adapted to the circular rod on the buckle rod (112).

5. A dust isolation structure for civil defense engineering according to claim 3, characterized in that, The sealing mechanism (3) includes a bracket (31) fixedly connected to the inner wall of the ventilation pipe (12), a sealing disc (32) is provided on the back of the bracket (31), a threaded rod (33) is threadedly connected to the center of the bracket (31), and a throttle (34) is fixedly connected to the front of the threaded rod (33). The second throttle (34) is used to drive the second threaded rod (33) to rotate, and the diameter of the sealing disc (32) is smaller than the inner diameter of the ventilation pipe (12).

6. A dust isolation structure for civil defense engineering according to claim 5, characterized in that, The sealing disc (32) is fitted with a sealing ring (321) on the back, and a limiting ring (322) is fixedly connected to the front of the sealing disc (32). The back of the threaded rod (33) is rotatably connected to the inner wall of the limiting ring (322). The threaded rod (33) works in conjunction with the limiting ring (322) to pull or push the sealing disc (32) during movement.

7. A dust isolation structure for civil defense engineering according to claim 6, characterized in that, The back of the sealing ring (321) contacts the inner wall of the ventilation pipe (12), and the sealing disc (32) is disc-shaped.

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