Light fireproof composite four-way air pipe

Abstract

The utility model discloses a light fireproof composite four-way ventilation pipe, and relates to the technical field of ventilation pipes. The light fireproof composite four-way ventilation pipe comprises a main ventilation pipe and further comprises a fireproof four-way pipe assembly arranged on one side of the main ventilation pipe. The fireproof four-way pipe assembly comprises a four-way pipeline arranged at the middle end of the main pipeline, a plurality of sets of fireproof grids arranged in the four-way pipeline and racks arranged on the inner walls of the four ends of the four-way pipeline. And the fireproof grids for detecting the smoke pipeline are closed, and the fireproof grids for not detecting the smoke are closed at the same time, so that the internal smoke uniformly flows out of the main pipeline to the outer side, the smoke is prevented from flowing to the shunting pipeline, and the bent pipe can be folded and is used for extension and shortening during pipeline butt joint, so that the pipelines can be subjected to butt joint; the pull ring and the sleeve are used for butt joint of the pipelines, and butt joint of the pipelines is fast and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation pipes, in particular to a lightweight fireproof composite four-way ventilation pipe. Background Art

[0002] Ventilation duct is the abbreviation of ventilation pipe, which is a metal or non-metallic pipe used for ventilation and air-conditioning engineering of industrial and civil buildings. The existing patented composite fireproof ventilation pipe, patent publication number CN209385818U includes a ventilation pipe body and an integrally formed fireproof outer sleeve arranged outside the ventilation pipe body. As a further improvement, the fireproof outer sleeve is an integrally formed fiber reinforced silicate fireproof outer sleeve. Furthermore, the thickness of the fiber reinforced silicate fireproof outer sleeve is 8mm-20mm. The composite fireproof ventilation pipe consists of a ventilation pipe body and an integrally formed fireproof outer sleeve. It is assembled directly in the factory, transported to the site, hoisted on site, and made to penetrate through the fireproof partition wall, and then the two ends are connected to the ordinary ventilation pipe; no high-altitude operation is required, the workload of on-site construction is reduced, the construction efficiency is high, the difficulty of construction period control is improved, and there is no safety risk;

[0003] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: although it can reduce the workload of on-site construction, improve construction efficiency, and improve the difficulty of construction period control, in actual use, when a fire occurs, the smoke generated may flow from the pipe to other rooms. During the escape of personnel, areas where no fire has occurred at the fire scene may also be dangerous. Therefore, we proposed a lightweight fireproof composite four-ventilation duct to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a lightweight fireproof composite four-ventilation duct, which solves the problem that the generated smoke may flow from the duct to other rooms, causing danger to areas where no fire has occurred at the fire scene during the escape process of personnel.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a lightweight fireproof composite four-way ventilation duct, comprising a main through-duct, and also comprising a fireproof four-way pipe assembly arranged on one side of the main through-duct;

[0006] The fireproof four-way pipe assembly comprises a four-way pipe arranged at the middle end of the main pipe, a plurality of groups of fireproof grilles arranged inside the four-way pipe, and racks arranged on the inner walls of the four ends of the four-way pipe.

[0007] Preferably, several groups of fire grilles are rotatably connected to the inner sides of the four ends of the four-way pipe, a gear is fixed to one end of the fire grille, fixed bars are fixed to the inner sides of the four ends of the four-way pipe, sliding shafts are fixed to both ends of the fixed bars, the rack is slidably connected between two groups of sliding shafts, and the gear is meshingly connected to the rack.

[0008] Preferably, a linear motor is fixed on the surface of the fixing bar, and an output end of the linear motor is fixed to a side surface of the rack.

[0009] Preferably, smoke sensors are fixed to the pipe walls at four ends of the four-way pipe.

[0010] Preferably, a protrusion is fixed on one side surface of the fire grille, and a groove matching the protrusion is formed on one side surface of the fire grille.

[0011] Preferably, it also includes a mounting assembly arranged at the four ends of the four-way pipe, and the mounting assembly includes a bending pipe arranged at the four ends of the four-way pipe, a sleeve fixed at both ends of the bending pipe, and a pull ring arranged on the outer wall of the sleeve.

[0012] Preferably, a corrugated pad is fixed to the inner wall of the sleeve.

[0013] Beneficial Effects

[0014] The utility model provides a lightweight fireproof composite four-way ventilation duct. Compared with the prior art, it has the following beneficial effects:

[0015] The lightweight fireproof composite four-way ventilation duct has the advantages that when a fire occurs, the fire grilles of the first main flow to the external environment are uniformly opened, and the fire grilles of the smoke pipes are closed, and the fire grilles that do not detect smoke are closed at the same time, so that the internal smoke flows out from the main pipe to the outside, and the smoke is prevented from flowing to the diversion pipe. The bending pipe can be folded and used for extension and shortening when the pipes are connected. The pipes can be connected, and the pull ring and the sleeve are used for the connection of the pipes. The connection of the pipes is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a four-way pipeline and its connecting components in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the fireproof grille and its connecting parts in the utility model;

[0019] Figure 4 for Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 5 It is a structural schematic diagram of the installation components in the utility model.

[0021] In the figure:

[0022] 1. Main pipeline;

[0023] 2. Fireproof four-way pipe assembly; 21. Four-way pipe; 22. Fireproof grille; 23. Rack; 24. Gear; 25. Fixed bar; 26. Sliding shaft; 27. Linear motor; 28. Bump; 29. ​​Groove;

[0024] 3. Installation assembly; 31. Bending tube; 32. Sleeve; 33. Pull ring; 34. Corrugated pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 , the utility model provides a technical solution: a lightweight fireproof composite four-way ventilation duct, comprising a main through-duct 1, and also comprising a fireproof four-way pipe assembly 2 arranged on one side of the main through-duct 1;

[0027] The fireproof four-way pipe assembly 2 includes a four-way pipe 21 arranged at the middle end of the main pipe 1, a plurality of groups of fireproof grilles 22 arranged inside the four-way pipe 21, and racks 23 arranged on the inner walls of the four ends of the four-way pipe 21.

[0028] In this embodiment: the main through duct 1 is used to lead to the external space, and a ventilation fan may be provided inside the main through duct 1. When a fire occurs, the main through duct 1 is used to lead to the external space, and a ventilation fan may be provided inside the main through duct 1. When the smoke sensor detects smoke, the linear motor 27 drives the rack 23 to slide on the track of the sliding shaft 26, and the gear 24 meshing with the rack 23 rotates, causing the fire grille 22 to rotate. The fire grilles 22 of the first mainstream to the external environment are uniformly opened, and the fire grilles 22 of the smoke ducts are closed, and at the same time, the fire grilles 22 that do not detect smoke are closed, so that the internal smoke uniformly flows out from the main through duct 1 to the outside, preventing the smoke from flowing to the diversion duct.

[0029] See also Figure 1-4Several groups of fire grilles 22 are rotatably connected to the inner sides of the four ends of the four-way pipe 21, a gear 24 is fixed to one end of the fire grille 22, and fixed bars 25 are fixed to the inner sides of the four ends of the four-way pipe 21. Sliding shafts 26 are fixed to both ends of the fixed bar 25. The rack 23 is slidably connected between the two groups of sliding shafts 26, and the gear 24 is meshed with the rack 23.

[0030] In this embodiment: the linear motor 27 drives the rack 23 to slide on the track of the sliding shaft 26, and the gear 24 meshing with the rack 23 rotates, so that the fire grille 22 rotates, and the fire grille 22 is opened or closed.

[0031] See also Figure 1-4 A linear motor 27 is fixed to the surface of the fixing bar 25 , and an output end of the linear motor 27 is fixed to a side surface of the rack 23 .

[0032] In this embodiment, the linear motor 27 drives the rack 23 to move.

[0033] Preferably, smoke sensors are fixed to the walls of the four ends of the four-way pipe 21 .

[0034] In this embodiment: the smoke sensor is electrically connected to four groups of linear motors 27, and each group of smoke sensors is electrically connected. If the sensor of the diversion pipe detects smoke at that location, the fire grille 22 opens. If one group of smoke sensors is triggered, the fire grille 22 connected to the main pipe 1 must be opened. The untriggered smoke sensor controls the linear motor 27 to close the fire grille 22.

[0035] See also Figure 1-4 A protrusion 28 is fixed on one side surface of the fire grille 22 , and a groove 29 matched with the protrusion 28 is formed on one side surface of the fire grille 22 .

[0036] In this embodiment, the protrusions 28 and the grooves 29 of the fire grilles 22 may be provided with sealing pads, so that when adjacent fire grilles 22 are in contact, sealing is achieved.

[0037] See also Figure 1 , Figure 5 , and also includes an installation component 3 arranged at the four ends of the four-way pipe 21, the installation component 3 includes a bending pipe 31 arranged at the four ends of the four-way pipe 21, a sleeve 32 fixed at both ends of the bending pipe 31, and a pull ring 33 arranged on the outer wall of the sleeve 32.

[0038] In this embodiment, the bending tube 31 can be folded to extend or shorten the pipes when they are connected. The pipes can be connected. The pull ring 33 and the sleeve 32 are used for connecting the pipes. The connection of the pipes is quick and convenient.

[0039] See also Figure 1 , Figure 5 A corrugated pad 34 is fixed to the inner wall of the sleeve 32 .

[0040] In this embodiment: the corrugated pad 34 is used for sealing when the pipeline is connected.

[0041] When a fire occurs, the main through duct 1 is used to lead to the external space. A ventilation fan may be provided inside the main through duct 1. When the smoke sensor detects smoke, the linear motor 27 drives the rack 23 to slide on the track of the sliding shaft 26, and the gear 24 meshing with the rack 23 rotates, causing the fire grille 22 to rotate. The fire grilles 22 of the first mainstream to the external environment are uniformly opened, and the fire grilles 22 of the smoke ducts are closed, and at the same time, the fire grilles 22 that do not detect smoke are closed, so that the internal smoke flows out from the main through duct 1 to the outside, avoiding the smoke from flowing to the diversion duct. During installation, the bendable bending tube 31 is used to facilitate the docking of the ducts. During installation, the sleeve 32 is sleeved on the outside of the four-way duct 21, and then the pull ring 33 is tightened and fixed.

[0042] In summary, when a fire occurs, the fire grilles 22 of the first mainstream to the external environment are opened uniformly, and the fire grilles 22 with detected smoke pipes are closed, and at the same time, the fire grilles 22 without detected smoke are closed, so that the internal smoke flows out from the main pipe 1 to the outside, avoiding the smoke from flowing to the diversion pipe. The bending tube 31 can be folded and used for extension and shortening when the pipes are connected. The pipes can be connected, and the pull ring 33 and the sleeve 32 are used for connecting the pipes. The connection of the pipes is quick and convenient.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A lightweight fireproof composite four-way ventilation duct, comprising a main passage duct (1), characterized in that: It also includes a fireproof four-way pipe assembly (2) arranged on one side of the main pipeline (1); The fireproof four-way pipe assembly (2) comprises a four-way pipe (21) arranged at the middle end of the main pipe (1), a plurality of groups of fireproof grilles (22) arranged inside the four-way pipe (21), and racks (23) arranged on the inner walls of the four ends of the four-way pipe (21).

2. A lightweight fireproof composite four-way ventilation duct according to claim 1, characterized in that: The inner sides of the four ends of the four-way pipe (21) are rotatably connected to a plurality of groups of fire grilles (22), one end of the fire grille (22) is fixed with a gear (24), the inner sides of the four ends of the four-way pipe (21) are fixed with fixed bars (25), both ends of the fixed bars (25) are fixed with sliding shafts (26), the rack (23) is slidably connected between two groups of sliding shafts (26), and the gear (24) is meshingly connected with the rack (23).

3. A lightweight fireproof composite four-way ventilation duct according to claim 2, characterized in that: A linear motor (27) is fixed on the surface of the fixing bar (25), and an output end of the linear motor (27) is fixed to a side surface of the rack (23).

4. A lightweight fireproof composite four-way ventilation duct according to claim 1, characterized in that: Smoke sensors are fixed to the pipe walls at the four ends of the four-way pipe (21).

5. A lightweight fireproof composite four-way ventilation duct according to claim 1, characterized in that: A protrusion (28) is fixed on one side surface of the fireproof grille (22), and a groove (29) matching the protrusion (28) is formed on one side surface of the fireproof grille (22).

6. A lightweight fireproof composite four-way ventilation duct according to claim 1, characterized in that: It also includes a mounting assembly (3) arranged at the four ends of the four-way pipe (21), the mounting assembly (3) including a bending pipe (31) arranged at the four ends of the four-way pipe (21), a sleeve (32) fixed at both ends of the bending pipe (31), and a pull ring (33) arranged on the outer wall of the sleeve (32).

7. A lightweight fireproof composite four-way ventilation duct according to claim 6, characterized in that: A corrugated pad (34) is fixed to the inner wall of the sleeve (32).

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