Fireproof separator for utility tunnel
By introducing adjustment and obstacle-crossing components into fire doors, the problem of fire doors being unable to open due to obstructions has been solved, enabling smooth opening and stable operation of fire doors and ensuring safe evacuation during a fire.
Patent Information
- Application Number
- CN202423309898.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In integrated utility tunnels, small objects or other obstacles can easily block the bottom of fire doors, preventing them from opening properly and affecting emergency evacuation safety.
A fireproof partition for integrated utility tunnels was designed. Through the adjustment components and obstacle-crossing components, including structures such as pivots, connecting seats, support columns, adjusting wheels, and shock absorbers, the fire door can be raised slowly when opened to avoid obstacles from getting stuck. The smooth opening is achieved through the cooperation of the adjusting wheels and guide seats.
This effectively avoids the problem of fire doors being unable to open due to obstructions, improves the stability and reliability of fire doors, and ensures safe evacuation in the event of a fire.
Smart Images

Figure CN223774193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireproof partition technology, specifically a fireproof partition for integrated utility tunnels. Background Technology
[0002] Fire-resistant partitions for integrated utility tunnels are fire-resistant facilities specifically designed for urban integrated utility tunnels. Their purpose is to effectively prevent the spread of fire in the event of a fire and protect various pipelines and facilities within the tunnel. Fire-resistant partitions for integrated utility tunnels typically include components such as firewalls, fire doors, and fire windows. These components are made of materials that meet fire resistance requirements, such as fire-resistant cables and flame-retardant materials, to ensure that they do not contribute to the spread of fire in the event of a fire.
[0003] In integrated utility tunnels, the centralized laying of municipal utility pipelines is often accompanied by the arrangement of a large number of connectors. During installation and use, it is difficult to avoid small objects or other obstacles falling off. Since the bottom of the fire door is close to the ground, these small objects can easily block the bottom of the fire door, causing it to jam and unable to open normally. This situation is especially dangerous during emergency evacuation because it will hinder the rapid evacuation of personnel, thus bringing serious safety hazards. Therefore, a fireproof partition for integrated utility tunnels is proposed to address the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a fireproof partition for integrated utility tunnels to solve the problem that small objects or other obstacles can easily fall off and block the bottom of the fireproof door, causing the fireproof door to get stuck and unable to be opened normally.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A fireproof partition for a utility tunnel includes a door frame. An adjusting assembly is fixedly mounted on one side of the door frame. A fireproof door body is hinged to one side of the adjusting assembly. The adjusting assembly includes two mounting seats. A positioning sleeve is fixedly connected to the front end of each mounting seat. A rotating shaft is rotatably connected between the two positioning sleeves. The rotating shaft includes a mounting shaft. An upper adjusting shaft is fixedly connected to the top end of the mounting shaft, a lower adjusting shaft is fixedly connected to the bottom end of the mounting shaft, a connecting seat is fixedly connected to the middle of the mounting shaft, and an obstacle-crossing assembly is fixedly connected to the bottom of the mounting shaft. A support column is provided below the obstacle-crossing assembly. An adjusting wheel is rotatably connected to the bottom of the support column. A fixing block is fixedly connected to the front end of the mounting base at the bottom. An upward moving mechanism is fixedly connected to the front end face of the fixing block. The upward moving mechanism includes a guide seat. A connecting block is fixedly connected to the outer surface of the guide seat. A protective plate is fixedly connected to the top of the connecting block. The obstacle-crossing component includes a fixing base. An adjusting base is slidably connected to the bottom of the fixing base. A shock absorber is elastically connected between the adjusting base and the fixing base. Positioning rods are fixedly connected to both sides of the shock absorber. An anti-detachment block is fixedly connected to one end of the adjusting base. An anti-detachment groove is provided on the inner side of the fixing base.
[0007] As a further optimization of this utility model, the following features are provided: two connecting seats are provided, the projected shape of the connecting seats is "L" shaped, the two connecting seats are located at the top and bottom of the mounting shaft respectively, and the rear end face of the mounting shaft is fixedly connected to one side of the fire door body.
[0008] As a further optimization of this utility model, the bottom end of the adjusting seat is fixedly connected to the top end of the support column, two shock absorbers are provided, the bottom end of the shock absorber is fixedly connected to the upper surface of the adjusting seat, the top end of the shock absorber is fixedly connected to the top of the inner side of the fixed seat, and the outer surface of the positioning rod is slidably connected to the top of the fixed seat.
[0009] As a further optimization of this utility model, the anti-detachment block is trapezoidal in shape, the anti-detachment groove is formed at the bottom of the inner side of the fixed base, and the anti-detachment groove is slidably connected to the anti-detachment block.
[0010] As a further optimization of this utility model, the outer surface of the upper adjusting shaft is rotatably connected to the inner side of the top positioning sleeve, one end of the upper adjusting shaft extends to the top of the top positioning sleeve, the upper adjusting shaft and the lower adjusting shaft are located on the same central axis, the outer surface of the lower adjusting shaft is rotatably connected to the inner side of the bottom positioning sleeve, and one end of the lower adjusting shaft extends to the bottom of the bottom positioning sleeve.
[0011] As a further optimization of this utility model, the adjusting wheel is located above the guide seat, the outer surface of the adjusting wheel slides in contact with the upper surface of the guide seat, and the upper surface of the guide seat has an arc-shaped structure.
[0012] As a further optimization of this utility model, the connecting block is located at the top of the outer side of the guide seat, the outer shape of the connecting block is the same as the outer shape of the protective plate, and a gap is provided between the protective plate and the support column.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. Through the adjustment components, the fire door body can rotate around the installation shaft by cooperating with the connecting seat of the rotating shaft. At the same time, because the upper surface of the guide seat is designed with an arc structure, the adjusting wheel will gradually rise as it moves upward along this path. This makes the fire door not only rotate outward but also slowly rise during the opening process, thereby increasing the gap between its bottom and the ground. This design ensures that the fire door can be opened and closed smoothly, effectively avoiding the problem of small objects or other obstacles blocking the fire door body and preventing it from opening normally. This ensures the safety and convenience of use and reduces safety hazards.
[0015] 2. The adjustable seat allows for flexible vertical adjustment through the combined action of the shock absorber and the positioning rod. If foreign objects accidentally fall into the surface of the guide seat, the pressure applied by the adjusting wheel can cause the adjusting seat to move upward so that the adjusting wheel can smoothly pass over these obstacles, thus improving stability and reliability and ensuring that the fire door body is in the best working condition. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a side view of the present invention.
[0018] Figure 3 This is a schematic diagram of the structure of the rotating shaft of this utility model;
[0019] Figure 4 This is a partial structural schematic diagram of the present invention;
[0020] Figure 5 This is a schematic diagram of the obstacle-crossing component of this utility model;
[0021] Figure 6 This is an exploded structural diagram of the obstacle-crossing component of this utility model;
[0022] Figure 7 This utility model Figure 1A schematic diagram of the structure at point A.
[0023] In the diagram: 1. Door frame; 2. Adjustment assembly; 21. Mounting seat; 22. Positioning sleeve; 23. Rotating shaft; 231. Mounting shaft; 232. Upper adjustment shaft; 233. Lower adjustment shaft; 24. Connecting seat; 25. Obstacle crossing assembly; 251. Fixed seat; 252. Adjustment seat; 253. Shock absorber; 254. Positioning rod; 255. Anti-detachment block; 256. Anti-detachment groove; 26. Support column; 27. Adjustment wheel; 28. Fixed block; 29. Lifting mechanism; 290. Guide seat; 291. Connecting block; 292. Protective plate; 3. Fire door body. Detailed Implementation
[0024] 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.
[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0026] Please see Figure 1-7 This utility model provides a technical solution:
[0027] A fireproof partition for a utility tunnel includes a door frame 1. An adjusting assembly 2 is fixedly mounted on one side of the door frame 1. A fire door body 3 is hinged to one side of the adjusting assembly 2. The adjusting assembly 2 includes two mounting seats 21. A positioning sleeve 22 is fixedly connected to the front end of the mounting seat 21. A rotating shaft 23 is rotatably connected between the two positioning sleeves 22. The rotating shaft 23 includes a mounting shaft 231. An upper adjusting shaft 232 is fixedly connected to the top of the mounting shaft 231, and a lower adjusting shaft 233 is fixedly connected to the bottom of the mounting shaft 231. A connecting seat 24 is fixedly connected to the middle of the mounting shaft 231. Two connecting seats 24 are provided, each with an "L"-shaped projection. The two connecting seats 24 are located at the top and bottom of the mounting shaft 231, respectively. The rear end of the mounting shaft 231 is fixedly connected to one side of the fire door body 3. An obstacle-crossing assembly 25, capable of smoothly overcoming obstacles such as guide seats 290, is fixedly connected to the bottom of the mounting shaft 231. Below the obstacle-crossing assembly 25 is... There is a support column 26, and an adjusting wheel 27 is rotatably connected to the bottom of the support column 26. The adjusting wheel 27 is made of soft rubber material and has good anti-slip properties with the guide seat 290. A fixing block 28 is fixedly connected to the front end of the bottom mounting base 21. A lifting mechanism 29 is fixedly connected to the front end of the fixing block 28. The lifting mechanism 29 includes a guide seat 290. The center of the guide seat 290 is the same as the center of the rotating shaft 23. A connecting block 291 is fixedly connected to the outer surface of the guide seat 290. A protective plate 292 is fixedly connected to the top of the connecting block 291. The obstacle crossing component 25 includes a fixed base 251. An adjusting base 252 is slidably connected to the bottom of the fixed base 251. A shock absorber 253 is elastically connected between the adjusting base 252 and the fixed base 251. Positioning rods 254 are fixedly connected to both sides of the shock absorber 253. An anti-detachment block 255 is fixedly connected to one end of the adjusting base 252. An anti-detachment groove 256 is opened on the inner side of the fixed base 251.
[0028] As a further implementation of this scheme, the adjusting wheel 27 is located above the guide seat 290. The outer surface of the adjusting wheel 27 slides in conjunction with the upper surface of the guide seat 290. The upper surface of the guide seat 290 has an arc-shaped structure. When the adjusting wheel 27 moves upward along this path, it will gradually rise due to the influence of the shape of the guide seat 290.
[0029] As a further implementation of this scheme, the bottom end of the adjusting seat 252 is fixedly connected to the top end of the support column 26. There are two shock absorbers 253. The bottom end of the shock absorber 253 is fixedly connected to the upper surface of the adjusting seat 252, and the top end of the shock absorber 253 is fixedly connected to the top of the inner side of the fixed seat 251. The outer surface of the positioning rod 254 is slidably connected to the top of the fixed seat 251. This configuration provides room for movement of the adjusting seat 252.
[0030] As a further implementation of this solution, the anti-detachment block 255 is trapezoidal in shape, and the anti-detachment groove 256 is formed at the bottom of the inner side of the fixed base 251. The anti-detachment groove 256 and the anti-detachment block 255 are slidably connected, which improves the stability of the fixed base 251 during movement.
[0031] As a further implementation of this solution, the outer surface of the upper adjusting shaft 232 is rotatably connected to the inner side of the top positioning sleeve 22, one end of the upper adjusting shaft 232 extends to the top of the top positioning sleeve 22, the upper adjusting shaft 232 and the upper adjusting shaft 233 are located on the same central axis, the outer surface of the lower adjusting shaft 233 is rotatably connected to the inner side of the bottom positioning sleeve 22, and one end of the lower adjusting shaft 233 extends to the bottom of the bottom positioning sleeve 22.
[0032] As a further implementation of this solution, the connecting block 291 is located at the top of the outer side of the guide seat 290. The outer shape of the connecting block 291 is the same as the outer shape of the protective plate 292. There is a gap between the protective plate 292 and the support column 26. This arrangement allows the protective plate 292 to protect the guide seat 290 without hindering the normal movement of the support column 26.
[0033] Workflow: The fire door body 3 is located inside the door frame 1 when closed. When it needs to be opened, the handle on the surface of the fire door body 3 is operated to rotate it. The fire door body 3 is connected to the mounting shaft 231 via the connecting seat 24, thus allowing it to rotate around the mounting shaft 231. Simultaneously, the mounting shaft 231 is also connected to the support column 26 via the obstacle-crossing assembly 25. As the mounting shaft 231 rotates, the support column 26 also rotates synchronously. The center of the guide seat 290 is the same as the center of the rotating shaft 23. Because the upper surface of the guide seat 290 is designed with an arc shape, when the adjusting wheel 27 moves upward along this path, it will be guided... The fire door body 3 gradually rises due to the shape of the guide seat 290. This design allows the fire door body 3 to not only rotate outwards during opening but also slowly rise, thereby increasing the gap between its bottom and the ground. The entire opening action is completed when the adjusting wheel 27 reaches the highest point of the guide seat 290. The presence of the positioning sleeve 22 provides sufficient room for the installation shaft 231 to move, ensuring smooth operation even when the installation shaft 231 moves upwards. The advantage of this design is that it can effectively avoid the problem of small objects or other obstacles getting stuck at the bottom of the fire door, thus ensuring the safety and convenience of use.
[0034] The protective plate 292 is installed by connecting block 291 to further protect the guide seat 290 from accidental impact damage and reduce the impact of external factors on its working state. At the same time, the adjusting seat 252 can be flexibly adjusted in the vertical direction under the combined action of shock absorber 253 and positioning rod 254. If foreign objects are accidentally dropped into the surface of guide seat 290, the pressure applied by adjusting wheel 27 can cause adjusting seat 252 to move upward so that adjusting wheel 27 can smoothly pass over these obstacles. Once it passes over, under the spring force of shock absorber 253, adjusting wheel 27 will automatically return to its original position and continue to work normally in close contact with the surface of guide seat 290. This mechanism greatly improves the stability and reliability of the system and ensures that the fire door body 3 can always be in the best working state.
[0035] 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 fireproof partition component for integrated utility tunnels, characterized in that, Includes a door frame (1), an adjustment component (2) is fixedly provided on one side of the door frame (1), and a fire door body (3) is hinged to one side of the adjustment component (2). The adjustment assembly (2) includes two mounting bases (21). A positioning sleeve (22) is fixedly connected to the front end face of each mounting base (21). A rotating shaft (23) is rotatably connected between the two positioning sleeves (22). The rotating shaft (23) includes a mounting shaft (231). An upper adjusting shaft (232) is fixedly connected to the top end of the mounting shaft (231), and a lower adjusting shaft (233) is fixedly connected to the bottom end of the mounting shaft (231). A connecting seat (24) is fixedly connected to the middle of the mounting shaft (231), and a connecting seat (24) is fixedly connected to the bottom of the mounting shaft (231). An obstacle-crossing component (25) is attached, and a support column (26) is provided below the obstacle-crossing component (25). An adjusting wheel (27) is rotatably connected to the bottom of the support column (26). A fixing block (28) is fixedly connected to the front end of the mounting base (21) at the bottom. An upward moving mechanism (29) is fixedly connected to the front end face of the fixing block (28). The upward moving mechanism (29) includes a guide seat (290). A connecting block (291) is fixedly connected to the outer surface of the guide seat (290). A protective plate (292) is fixedly connected to the top end of the connecting block (291). The obstacle-crossing component (25) includes a fixed base (251), an adjustable base (252) is slidably connected to the bottom of the fixed base (251), a shock absorber (253) is elastically connected between the adjustable base (252) and the fixed base (251), a positioning rod (254) is fixedly connected to both sides of the shock absorber (253), an anti-detachment block (255) is fixedly connected to one end of the adjustable base (252), and an anti-detachment groove (256) is provided on the inner side of the fixed base (251).
2. The fireproof partition component for an integrated utility tunnel according to claim 1, characterized in that: There are two connecting seats (24). The projected shape of the connecting seats (24) is "L". The two connecting seats (24) are located at the top and bottom of the mounting shaft (231) respectively. The rear end face of the mounting shaft (231) is fixedly connected to one side of the fire door body (3).
3. The fireproof partition component for an integrated utility tunnel according to claim 1, characterized in that: The bottom end of the adjusting seat (252) is fixedly connected to the top end of the support column (26). There are two shock absorbers (253). The bottom end of the shock absorber (253) is fixedly connected to the upper surface of the adjusting seat (252). The top end of the shock absorber (253) is fixedly connected to the top of the inner side of the fixed seat (251). The outer surface of the positioning rod (254) is slidably connected to the top of the fixed seat (251).
4. A fireproof partition for an integrated utility tunnel according to claim 1, characterized in that: The anti-detachment block (255) is trapezoidal in shape, and the anti-detachment groove (256) is opened at the bottom inside the fixed base (251). The anti-detachment groove (256) and the anti-detachment block (255) are slidably connected.
5. A fireproof partition for an integrated utility tunnel according to claim 1, characterized in that: The outer surface of the upper adjusting shaft (232) is rotatably connected to the inner side of the top positioning sleeve (22), one end of the upper adjusting shaft (232) extends to the top of the top positioning sleeve (22), the upper adjusting shaft (232) and the upper adjusting shaft (232) are located on the same central axis, the outer surface of the lower adjusting shaft (233) is rotatably connected to the inner side of the bottom positioning sleeve (22), one end of the lower adjusting shaft (233) extends to the bottom of the bottom positioning sleeve (22).
6. A fireproof partition for an integrated utility tunnel according to claim 1, characterized in that: The adjusting wheel (27) is located above the guide seat (290), and the outer surface of the adjusting wheel (27) slides in contact with the upper surface of the guide seat (290). The upper surface of the guide seat (290) has an arc-shaped structure.
7. A fireproof partition for an integrated utility tunnel according to claim 1, characterized in that: The connecting block (291) is located at the top of the outer side of the guide seat (290). The outer shape of the connecting block (291) is the same as the outer shape of the protective plate (292). There is a gap between the protective plate (292) and the support column (26).