Detachable access hole structure for smoke-proof composite air pipe

Abstract

The utility model belongs to the technical field of access hole, and disclose a kind of detachable access hole structure for composite smoke exhaust pipe, including bottom plate, the side of bottom plate is fixed with access mechanism, the side of bottom plate is fixed with connecting mechanism, the access mechanism includes shell, the side of shell is fixedly connected with the side of bottom plate, the inside of shell is equipped with smoke dust filter layer, the inner surface of shell is equipped with access rack, the inner surface of access rack is fixedly equipped with multiple inclined louvers, the side of access rack is fixedly equipped with two fixed plates, the side of two fixed plates is equally provided with multiple fixed slots, the utility model is equipped with access mechanism, the convenient disassembly of access rack is realized, it is convenient to clean or replace smoke dust filter layer, simultaneously, the sealing of structure is ensured, and by connecting mechanism, the stable connection with external pipeline is realized using connecting groove and mounting groove, overall structure is convenient to install and maintain.

Description

Technical Field

[0001] This utility model belongs to the field of inspection port technology, specifically a detachable inspection port structure for smoke exhaust composite duct. Background Technology

[0002] The detachable inspection port structure for smoke control and exhaust composite ducts is suitable for places with high requirements for smoke control and exhaust systems, such as large commercial complexes, underground parking lots, industrial plants, hospitals, and subway tunnels. At the same time, when maintaining the system, replacing parts, or dealing with sudden failures, the inspection port can be quickly disassembled and installed without damaging the overall duct structure, ensuring the continuous and stable operation of the ventilation system and improving fire safety performance.

[0003] However, the following problems were found in the implementation of the relevant technologies: In existing smoke control and exhaust composite duct technology, maintenance often faces the problems of cumbersome disassembly and assembly of inspection ports, which is time-consuming and labor-intensive. This makes it difficult to clean or replace the smoke filter layer in a timely manner. Long-term accumulation of smoke and dust can seriously block the duct, reduce smoke exhaust efficiency, and even cause safety hazards. At the same time, the sealing of traditional duct connection parts is insufficient, which can easily lead to air leakage, affecting the ventilation effect. In addition, the connection structure is complex and difficult to install and maintain, which increases the later operation and maintenance costs. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a detachable inspection port structure for smoke-proof and exhaust composite ducts, offering advantages such as convenient assembly and disassembly and a secure connection. This invention, through its inspection mechanism, enables convenient assembly and disassembly of the inspection frame, facilitating the cleaning or replacement of the smoke filter layer. Furthermore, through its connecting mechanism, it utilizes connecting grooves and mounting grooves to achieve a secure connection with external ducts. The overall structure is easy to install and maintain.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable inspection port structure for a smoke-proof and exhaust composite duct, comprising a base plate, an inspection mechanism fixedly mounted on one side of the base plate, a connecting mechanism fixedly mounted on one side of the base plate, the inspection mechanism comprising a housing, one side of the housing being fixedly connected to one side of the base plate, a smoke and dust filter layer being provided on the inner side of the housing, an inspection frame being provided on the inner surface of the housing, multiple oblique louvers being fixedly mounted on the inner surface of the inspection frame, two fixing plates being fixedly mounted on one side of the inspection frame, multiple fixing grooves being provided on one side of each of the two fixing plates, and multiple fixing slots cooperating with the fixing grooves being provided on both sides of the housing, with bolts commonly inserted into the inner surface of each fixing groove and fixing slot.

[0006] Preferably, the connecting mechanism includes a connecting plate and a mounting plate. A sealing ring is fixedly provided on one side of the opposite face of the connecting plate and the mounting plate. A telescopic tube is fixedly provided on one side of the opposite face of the two sealing rings. A plurality of connecting grooves are provided on one side of the connecting plate, and a plurality of mounting grooves are provided on one side of the mounting plate.

[0007] Preferably, the interior of the housing has an air inlet slot, and the inner surface of the air inlet slot slides and fits against the outer surface of the maintenance frame.

[0008] Preferably, all of the slanted louvers are fixed at an angle to the inner surface of the maintenance frame.

[0009] Preferably, there are fourteen fixing slots, and seven fixing slots are arranged in a linear pattern on one side of the two fixing plates.

[0010] Preferably, there are four connecting slots, and the four connecting slots are distributed in a rectangular array on one side of the connecting plate.

[0011] Preferably, there are four mounting slots, and the four mounting slots are arranged in a rectangular array on one side of the mounting plate.

[0012] Preferably, each of the two sealing rings has four sealing grooves on one side that are respectively used to cooperate with the connecting plate and the mounting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves convenient disassembly and assembly of the maintenance rack through the maintenance mechanism, making it easy to clean or replace the dust filter layer. At the same time, the sliding fit design between the air inlet slot and the maintenance rack ensures the airtightness of the structure.

[0014] 2. This utility model uses a connecting mechanism to clamp the telescopic pipe with a sealing ring on the connecting plate and the mounting plate, and uses the connecting groove and the mounting groove to achieve a stable connection with the external pipeline. The overall structure is easy to install and maintain. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the maintenance mechanism and connection mechanism of this utility model; Figure 3 This is a schematic diagram of the maintenance mechanism of this utility model; Figure 4 This is a schematic diagram of the connection mechanism of this utility model.

[0016] In the diagram: 1. Base plate; 2. Maintenance mechanism; 3. Connecting mechanism; 20. Outer shell; 21. Air inlet slot; 22. Maintenance frame; 23. Slanted louver; 24. Fixing plate; 25. Fixing slot; 26. Bolt; 27. Fixing slot; 28. Smoke and dust filter layer; 30. Connecting plate; 31. Sealing ring; 32. Telescopic tube; 33. Mounting slot; 34. Mounting plate; 35. Sealing slot; 36. Connecting slot. Detailed Implementation

[0017] 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 protection scope of the present utility model.

[0018] like Figures 1 to 4 As shown, this utility model provides a detachable maintenance port structure for a smoke-proof and exhaust composite duct, including a base plate 1. A maintenance mechanism 2 is fixedly mounted on one side of the base plate 1, and a connecting mechanism 3 is fixedly mounted on another side of the base plate 1. The maintenance mechanism 2 includes a housing 20, one side of which is fixedly connected to one side of the base plate 1. A smoke and dust filter layer 28 is provided on the inner side of the housing 20. A maintenance frame 22 is provided on the inner surface of the housing 20. Multiple oblique louvers 23 are fixedly mounted on the inner surface of the maintenance frame 22. Two fixing plates 24 are fixedly mounted on one side of the maintenance frame 22. Multiple fixing grooves 25 are provided on one side of each of the two fixing plates 24. Multiple fixing slots 27 that cooperate with the fixing grooves 25 are provided on both sides of the housing 20. Each fixing slot... Bolts 26 are inserted into the inner surfaces of both the mounting plate 25 and the mounting slot 27. When it is necessary to clean or replace the dust filter layer 28 of the smoke exhaust composite duct, first unscrew the bolts 26 fixed in the mounting slot 25 of the mounting plate 24 and the mounting slot 27 of the outer shell 20. Since the outer surface of the maintenance frame 22 slides against the air inlet slot 21 inside the outer shell 20, the maintenance frame 22 can be easily pulled out from the outer shell 20, and then the dust filter layer 28 inside the maintenance frame 22 can be cleaned or replaced. After cleaning or replacement, slide the maintenance frame 22 back into the air inlet slot 21, align the mounting slot 25 with the mounting slot 27, and then insert and tighten the bolts 26 to complete the installation and fixation of the maintenance frame 22.

[0019] Specifically, the connecting mechanism 3 includes a connecting plate 30 and a mounting plate 34. Sealing rings 31 are fixedly provided on one side of the opposite surfaces of the connecting plate 30 and the mounting plate 34. A telescopic tube 32 is fixedly provided on one side of the opposite surfaces of the two sealing rings 31. Multiple connecting grooves 36 are provided on one side of the connecting plate 30, and multiple mounting grooves 33 are provided on one side of the mounting plate 34. When installing the smoke-proof and exhaust composite duct, the connecting plate 30 and the mounting plate 34 are respectively connected to both ends of the duct. The sealing rings 31 on the opposite sides of the connecting plate 30 and the mounting plate 34 will move closer to each other, and the sealing grooves 35 on the sealing rings 31 will... The two sealing rings 31 will fit tightly against the connecting plate 30 and the mounting plate 34 respectively, thus providing a seal. At the same time, the two sealing rings 31 will clamp the telescopic tube 32 together, realizing the initial connection of the air duct. Then, using the four connecting slots 36 arranged in a rectangular array on one side of the connecting plate 30 and the four mounting slots 33 arranged in a rectangular array on one side of the mounting plate 34, the connecting plate 30 and the mounting plate 34 will be firmly connected to the external pipe through the connector, thus completing the installation of the entire air duct. When disassembly and maintenance are required, simply unscrew the connector to easily separate the connecting plate 30 and the mounting plate 34 for inspection and maintenance of the internal components.

[0020] Furthermore, the air inlet slot 21 inside the outer casing 20 slides and fits against the outer surface of the maintenance rack 22. This design allows the maintenance rack 22 to slide smoothly along the air inlet slot 21 during installation and disassembly, which is not only convenient and quick to operate, but also ensures the sealing of the maintenance rack 22 after it is installed in place, effectively preventing air leakage and ensuring the normal operation of the smoke control system.

[0021] Furthermore, multiple inclined louvers 23 are fixed at an angle to the inner surface of the maintenance frame 22. The inclined louvers 23 can change the direction of airflow, allowing the airflow to pass through the dust filter layer 28 more evenly and improving the filtration effect. At the same time, the inclined louvers 23 can also play a certain role in guiding the airflow, reducing the impact of the airflow on the maintenance frame 22 and the dust filter layer 28, and extending their service life.

[0022] It is worth noting that there are fourteen fixing slots 25, and seven fixing slots 25 are arranged in a linear pattern on one side of the two fixing plates 24. This distribution makes the connection between the maintenance frame 22 and the outer shell 20 more secure and stable. The multiple fixing slots 25 and fixing clips 27 are connected by bolts 26, which can distribute the connection stress and avoid loosening or damage due to excessive local stress, thereby improving the overall reliability and safety of the maintenance mechanism 2.

[0023] It is worth noting that there are four connecting slots 36, which are arranged in a rectangular array on one side of the connecting plate 30. This rectangular array arrangement of the connecting slots 36 allows for more even force distribution between the connecting plate 30 and the external pipe, enhancing the stability and robustness of the connection. When subjected to external forces, the four connection points can share the load, reducing the stress on individual connection points, lowering the risk of connection failure, and ensuring that the connecting mechanism 3 will not loosen or detach during long-term use.

[0024] It is worth mentioning that there are four mounting slots 33, which are arranged in a rectangular array on one side of the mounting plate 34, corresponding to the distribution of the connecting slots 36. This design makes the connection between the mounting plate 34 and the external duct more secure. The rectangular array of mounting slots 33 provides uniform connection force, ensuring the sealing and stability between the mounting plate 34 and the external duct, preventing problems such as air leakage or duct displacement caused by uneven connection, and improving the performance and safety of the entire smoke control and exhaust composite duct system.

[0025] It is worth emphasizing that each of the two sealing rings 31 has four sealing grooves 35 on one side, which are respectively used to mate with the connecting plate 30 and the mounting plate 34. The design of the sealing grooves 35 can enhance the fit between the sealing rings 31 and the connecting plate 30 and the mounting plate 34, and further improve the sealing performance of the connection. When the connecting plate 30 and the mounting plate 34 are mated, the sealing rings 31 are tightly combined with them through the sealing grooves 35, effectively preventing air leakage from the connection, ensuring that the smoke exhaust system can maintain good airtightness during operation, and preventing the smoke exhaust effect and safety of the system from being affected by air leakage.

[0026] Working principle: When it is necessary to clean or replace the dust filter layer 28 of the smoke exhaust composite duct, first unscrew the bolts 26 fixed in the fixing groove 25 of the fixing plate 24 and the fixing slot 27 of the outer shell 20. Since the outer surface of the maintenance frame 22 slides and fits against the air inlet groove 21 inside the outer shell 20, the maintenance frame 22 can be easily pulled out from the outer shell 20, and then the dust filter layer 28 inside the maintenance frame 22 can be cleaned or replaced. After cleaning or replacement, slide the maintenance frame 22 back into the air inlet groove 21, align the fixing groove 25 with the fixing slot 27, and then insert and tighten the bolts 26 to complete the installation and fixation of the maintenance frame 22.

[0027] When installing the smoke-proof and exhaust composite duct, the connecting plate 30 and the mounting plate 34 are respectively connected to both ends of the duct. The sealing rings 31 on the opposite sides of the connecting plate 30 and the mounting plate 34 will move closer to each other, and the sealing grooves 35 on the sealing rings 31 will fit tightly with the connecting plate 30 and the mounting plate 34 respectively, thus achieving a sealing effect. At the same time, the two sealing rings 31 together hold the telescopic pipe 32, realizing the initial connection of the duct. Then, using the four connecting grooves 36 arranged in a rectangular array on one side of the connecting plate 30 and the four mounting grooves 33 arranged in a rectangular array on one side of the mounting plate 34, the connecting plate 30 and the mounting plate 34 are securely connected to the external pipeline through the connector, completing the installation of the entire duct. When disassembly and maintenance are required, simply unscrew the connector to easily separate the connecting plate 30 and the mounting plate 34 for inspection and maintenance of the internal components.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable inspection port structure for a smoke-proof and smoke-exhaust composite duct, comprising a base plate (1), characterized in that: A maintenance mechanism (2) is fixedly provided on one side of the base plate (1), and a connecting mechanism (3) is fixedly provided on one side of the base plate (1). The maintenance mechanism (2) includes a housing (20), one side of which is fixedly connected to one side of the base plate (1). The inner side of the housing (20) is provided with a dust filter layer (28). The inner surface of the housing (20) is provided with a maintenance rack (22). The inner surface of the maintenance rack (22) is fixedly provided with multiple oblique louvers (23). Two fixing plates (24) are fixedly provided on one side of the maintenance rack (22). Multiple fixing slots (25) are opened on one side of each of the two fixing plates (24). Multiple fixing slots (27) that cooperate with the fixing slots (25) are opened on both sides of the housing (20). Bolts (26) are inserted into the inner surface of each fixing slot (25) and fixing slot (27).

2. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 1, characterized in that: The connecting mechanism (3) includes a connecting plate (30) and a mounting plate (34). A sealing ring (31) is fixedly provided on one side of the opposite face of the connecting plate (30) and the mounting plate (34). A telescopic tube (32) is fixedly provided on one side of the opposite face of the two sealing rings (31). A plurality of connecting grooves (36) are provided on one side of the connecting plate (30), and a plurality of mounting grooves (33) are provided on one side of the mounting plate (34).

3. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 1, characterized in that: The housing (20) has an air inlet slot (21) inside, and the inner surface of the air inlet slot (21) slides and fits against the outer surface of the maintenance frame (22).

4. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 1, characterized in that: Multiple oblique louvers (23) are fixed at an angle to the inner surface of the maintenance frame (22).

5. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 1, characterized in that: The fixing slots (25) are provided in fourteens, and seven fixing slots (25) are linearly distributed on one side of the two fixing plates (24).

6. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 2, characterized in that: The connecting slots (36) are provided in four places, and the four connecting slots (36) are arranged in a rectangular array on one side of the connecting plate (30).

7. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 2, characterized in that: The mounting slots (33) are provided in four places, and the four mounting slots (33) are arranged in a rectangular array on one side of the mounting plate (34).

8. The detachable inspection port structure for a smoke-proof and exhaust composite duct according to claim 2, characterized in that: Each of the two sealing rings (31) has four sealing grooves (35) on one side that are used to cooperate with the connecting plate (30) and the mounting plate (34).

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