Local reinforcing structure of fireproof air pipe

Abstract

The fireproof air pipe local reinforcing structure comprises a mounting plate, the bottom end of the mounting plate is fixedly connected with a reinforcing frame through two connecting plates, a first supporting plate and a second supporting plate are arranged at an opening in the bottom end of the reinforcing frame, and openings are formed in the two sides of the bottom end of the reinforcing frame. The first supporting plate and the second supporting plate are rotationally connected with the corresponding openings through rotating shafts; a protruding block is arranged on the side, close to the second supporting plate, of the first supporting plate, second limiting holes are formed in the two sides of the protruding block, a notch matched with the protruding block is formed in the side, close to the first supporting plate, of the second supporting plate, first positioning holes are formed in the two sides of the notch, and the two first positioning holes correspond to the two second positioning holes respectively. The first supporting plate and the second supporting plate which can be turned over are arranged at the bottom end of the reinforcing frame, so that the fireproof air pipe is very convenient to mount and dismount, the fireproof air pipe is more convenient to mount again after being replaced, screws do not need to be screwed frequently, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to a local reinforcement structure for fireproof air ducts, belonging to the technical field of fireproof air duct reinforcement structure. Background Technology

[0002] Fire-resistant ducts are pipes used in building fire protection systems, primarily for transmitting smoke, air supply, and exhaust air from fire-resistant fans. Fire-resistant ducts possess fire-resistant properties, enabling them to isolate and prevent the spread of fire in the event of a fire, protecting the building and its occupants.

[0003] Because fireproof air ducts are generally quite long, reinforcement is usually required in certain areas to ensure their stability. Current reinforcement methods typically involve directly suspending the ducts to the roof or ceiling using frames and screws. Figure 1 As shown, because multiple areas need to be reinforced, the overall installation is quite troublesome. In particular, when the fireproof air ducts are disassembled, repaired, or replaced later, they require tedious disassembly and then tedious reinstallation, which is time-consuming, labor-intensive, and inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a local reinforcement structure for fireproof air ducts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a partial reinforcement structure for fireproof air ducts, including a mounting plate. A reinforcement frame is fixedly connected to the bottom of the mounting plate via two connecting plates. A first support plate and a second support plate are provided at the bottom opening of the reinforcement frame. Openings are provided on both sides of the bottom of the reinforcement frame. The first and second support plates are rotatably connected to their corresponding openings via rotating shafts. A protrusion is provided on the side of the first support plate near the second support plate. Second limiting holes are provided on both sides of the protrusion. A recess adapted to the protrusion is provided on the side of the second support plate near the first support plate. First positioning holes are provided on both sides of the recess. Two first positioning holes correspond to two second positioning holes. A positioning mechanism is provided between each of the two first positioning holes and the corresponding second positioning hole. Several limiting holes are provided at the opposite ends of the first and second support plates. Limiting mechanisms are provided on both sides of the reinforcement frame. Two limiting mechanisms correspond to several limiting holes. A rotating mechanism is provided at the upper end of each of the two limiting mechanisms.

[0006] Preferably, both positioning mechanisms include a pull ring, a mounting plate, several connecting blocks, a round hole, a positioning rod, a side block, and a through hole. The mounting plate is fixedly connected to the outside of the second support plate through several connecting blocks. The positioning rod is movably sleeved with the mounting plate through the round hole. One end of the positioning rod passes through the first positioning hole and is movably inserted into the second positioning hole. The other end of the positioning rod is fixedly connected to a pull ring.

[0007] Preferably, each of the two limiting mechanisms includes several limiting rods, a force-bearing block, two springs, a fixing block, two connecting rods, and a mounting block. The fixing block is fixedly connected to the outside of the reinforcing frame, and connecting rods are movably sleeved on both sides of the fixing block. The bottom ends of the two connecting rods are fixedly connected to the mounting block, and several limiting rods adapted to the limiting holes are vertically fixed to the bottom end of the mounting block. The several limiting rods are movably inserted into the corresponding limiting holes. The top ends of the two connecting rods are fixedly connected to the force-bearing block, and two springs are fixedly connected between the force-bearing block and the fixing block. The two springs are respectively sleeved around the two connecting rods.

[0008] Preferably, the rotating mechanism includes a rotating block, a rotating rod, a turntable, and two planes. The rotating rod is fixedly connected to one side of the rotating block, and the end of the rotating rod away from the rotating block is rotatably connected to the outside of the reinforcing frame. The turntable is fixedly sleeved on the outside of the rotating rod. The turntable is elliptical in shape, and the outside of the turntable is in contact with the bottom surface of the force-bearing block. Both ends of the turntable are provided with planes.

[0009] Preferably, the sidewall of the circular hole is provided with a through hole, and a side block adapted to the through hole is fixedly connected to the outside of the positioning rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by setting a flip-up first support plate and a second support plate at the bottom of the reinforced frame, the installation and disassembly of the fireproof air duct is very convenient. When the fireproof air duct is reinstalled after replacement, it is also more convenient, without the need to frequently tighten the screws, saving time and effort. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a common local reinforcement structure for existing fireproof air ducts;

[0012] Figure 2 This is a schematic diagram of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the connection structure between the first support plate and the second support plate of this utility model;

[0014] Figure 4 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0015] Figure 5 This is a schematic diagram showing the connection between the limiting mechanism and the rotating mechanism of this utility model.

[0016] In the diagram: 1. Mounting plate; 2. Connecting plate; 3. Reinforcing frame; 4. First support plate; 5. Second support plate; 6. Limiting mechanism; 61. Limiting rod; 62. Force-bearing block; 63. Spring; 64. Fixing block; 65. Connecting rod; 66. Mounting block; 7. Rotating mechanism; 71. Rotating block; 72. Rotating rod; 73. Turntable; 74. Plane; 8. Positioning mechanism; 81. Pull ring; 82. Mounting plate; 83. Connecting block; 84. Positioning rod; 85. Round hole; 9. Limiting hole; 10. Notch; 11. Protrusion; 12. First positioning hole; 13. Second positioning hole; 14. Opening; 15. Side block; 16. Through hole. 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] Please see Figure 2-5 This utility model provides a technical solution: a partial reinforcement structure for fireproof air ducts, including a mounting plate 1. A reinforcement frame 3 is fixedly connected to the bottom end of the mounting plate 1 via two connecting plates 2. A first support plate 4 and a second support plate 5 are provided at the bottom opening 14 of the reinforcement frame 3. Openings 14 are provided on both sides of the bottom end of the reinforcement frame 3. The first support plate 4 and the second support plate 5 are rotatably connected to their respective openings 14 via pivots. A protrusion 11 is provided on the side of the first support plate 4 near the second support plate 5. Second limiting holes 9 are provided on both sides of the protrusion 11. A recess 10 adapted to the protrusion 11 is provided on the side of the second support plate 5 near the first support plate 4. First positioning holes 12 are provided on both sides of the recess 10. Two first positioning holes 12 correspond to two second positioning holes 13 respectively, and a positioning mechanism 8 is provided between each of the two first positioning holes 12 and the corresponding second positioning holes 13; a number of limiting holes 9 are provided at the opposite ends of the first support plate 4 and the second support plate 5, and a limiting mechanism 6 is provided on both sides of the reinforcing frame 3. The two limiting mechanisms 6 correspond to a number of limiting holes 9 respectively, and a rotating mechanism 7 is provided at the upper end of each of the two limiting mechanisms 6. By setting a flip-up first support plate 4 and a second support plate 5 at the bottom of the reinforcing frame 3, the installation and disassembly of the fireproof air duct is very convenient. When the fireproof air duct is reinstalled after replacement, it is also more convenient, without the need to frequently tighten the screws, saving time and effort.

[0019] Both positioning mechanisms 8 include a pull ring 81, a mounting plate 82, several connecting blocks 83, a round hole 85, a positioning rod 84, a side block 15, and a through hole 16. The mounting plate 82 is fixedly connected to the outside of the second support plate 5 through several connecting blocks 83. The positioning rod 84 is movably sleeved with the mounting plate 82 through the round hole 85. One end of the positioning rod 84 passes through the first positioning hole 12 and is movably inserted into the second positioning hole 13. The other end of the positioning rod 84 is fixedly connected to the pull ring 81. When the positioning rod 84 is inserted into the first positioning hole 12 and the second positioning hole 13, the side block 15 is located on one side of the mounting plate 82 through the through hole 16. Then, the positioning rod 84 is rotated so that the side block 15 is not aligned with the through hole 16, thereby positioning the rod 84. 4. Stably positioned within the first positioning hole 12 and the second positioning hole 13, thereby ensuring the supporting effect of the first support plate 4 and the second support plate 5 on the fireproof air duct; both limiting mechanisms 6 include several limiting rods 61, force-bearing blocks 62, two springs 63, fixing blocks 64, two connecting rods 65, and mounting blocks 66. The fixing blocks 64 are fixedly connected to the outside of the reinforcing frame 3. The connecting rods 65 are movably sleeved on both sides of the fixing blocks 64. The bottom ends of the two connecting rods 65 are fixedly connected to the mounting blocks 66. Several limiting rods 61 adapted to the limiting holes 9 are vertically fixed at the bottom ends of the mounting blocks 66. The several limiting rods 61 are movably inserted into the corresponding limiting holes 9. The top ends of the two connecting rods 65 are fixedly connected to the force-bearing blocks 62, which bear the force. Two springs 63 are fixedly connected between block 62 and fixed block 64. The two springs 63 are respectively sleeved around the two connecting rods 65. They are inserted into several limiting holes 9 by several limiting rods 61, thereby further ensuring the stability of the first support plate 4 and the second support plate 5. The rotating mechanism 7 includes a rotating block 71, a rotating rod 72, a turntable 73 and two planes 74. The rotating rod 72 is fixedly connected to one side of the rotating block 71. The end of the rotating rod 72 away from the rotating block 71 is rotatably connected to the outside of the reinforcing frame 3. The turntable 73 is fixedly sleeved on the outside of the rotating rod 72. The turntable 73 is elliptical. The outside of the turntable 73 is in contact with the bottom surface of the force-bearing block 62. Both ends of the turntable 73 are provided with planes 74. The rotating rod is rotated by the rotating block 71. 72. Rotating rod 72 drives turntable 73 to rotate. Since turntable 73 is elliptical, it pushes the force plate during rotation, causing the force plate to move upward. When the plane 74 on one side of turntable 73 is combined with the bottom of the force plate, the rotating block 71 stops rotating. At this time, the limiting rods 61 have moved away from the limiting hole 9, thereby releasing the restriction on the support plate. The side wall of the round hole 85 is provided with a through hole 16. The outer side of the positioning rod 84 is fixedly connected with a side block 15 that matches the through hole 16. When the side block 15 does not correspond to the through hole 16, the positioning rod 84 will be stably inserted into the first positioning hole 12 and the second positioning hole 13, thereby ensuring the stability of the first support plate 4 and the second support plate 5.

[0020] Specifically, in use, the fireproof duct is placed inside the reinforcing frame 3, and the fireproof duct is reinforced by the reinforcing frame 3, the first support plate 4, and the second support plate 5. When the fireproof duct needs to be disassembled, repaired, or replaced, the rotating block 71 first rotates the rotating rod 72, which drives the turntable 73 to rotate. Since the turntable 73 is elliptical, it pushes the force plate during rotation, causing the force plate to move upward. The rotation of the rotating block 71 stops when the plane 74 on one side of the turntable 73 engages with the bottom end of the force plate. 1. At this point, all the limiting rods 61 have moved away from the limiting holes 9. Then, by rotating the positioning rod 84 through the pull ring 81, when the side block 15 on the outer side of the positioning rod 84 corresponds to the through hole 16, the positioning rod 84 can be pulled out, thereby releasing the restriction on the first support plate 4 and the second support plate 5. At this time, the first support plate 4 and the second support plate 5 can be flipped through the pivot. When the first support plate 4 and the second support plate 5 are flipped to a vertical position, the restriction on the fireproof air duct can be released, thereby disassembling the fireproof air duct; when installing the fireproof air duct, When the fireproof duct is located inside the reinforced frame 3, flip the first support plate 4 and the second support plate 5. When the first support plate 4 and the second support plate 5 are in a horizontal state, they are better fitted to the bottom end of the fireproof duct. Then, insert the positioning rod 84 into the first positioning hole 12 and the second positioning hole 13. At this time, the side block 15 is located on one side of the mounting plate 82 through the through hole 16. Then rotate the positioning rod 84 so that the side block 15 is not aligned with the through hole 16, thereby making the positioning rod 84 stably located in the first positioning hole 12 and the second positioning hole 13, thus ensuring the first support... The first support plate 4 and the second support plate 5 provide support for the fireproof air duct. Finally, the turntable 73 is rotated so that the plane 74 of the turntable 73 is far away from the force block 62. At this time, the force block 62 moves down by the restoring force of the spring 63, thereby driving several limit rods 61 to be inserted into several limit holes 9, which further ensures the stability of the first support plate 4 and the second support plate 5. This makes the installation and disassembly of the fireproof air duct very convenient. When the fireproof air duct is reinstalled after replacement, it is also more convenient, without the need to frequently tighten the screws, saving time and effort.

[0021] 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 local reinforcement structure for a fireproof duct, comprising a mounting plate (1), characterized in that: The bottom end of the mounting plate (1) is fixedly connected with a reinforcing frame (3) through two connecting plates (2), the bottom end of the reinforcing frame (3) is provided with a first supporting plate (4) and a second supporting plate (5) at an opening (14), both sides of the bottom end of the reinforcing frame (3) are provided with an opening (14), the first supporting plate (4) and the second supporting plate (5) are rotatably connected with the corresponding openings (14) through pivots, one side of the first supporting plate (4) close to the second supporting plate (5) is provided with a protruding block (11), both sides of the protruding block (11) are provided with second limiting holes (9), one side of the second supporting plate (5) close to the first supporting plate (4) is provided with a notch (10) matched with the protruding block (11), both sides of the notch (10) are provided with first positioning holes (12), two first positioning holes (12) correspond to two second positioning holes (13) respectively, and a positioning mechanism (8) is arranged between the two first positioning holes (12) and the corresponding second positioning hole (13); the opposite ends of the first supporting plate (4) and the second supporting plate (5) are provided with a plurality of limiting holes (9), both sides of the reinforcing frame (3) are provided with limiting mechanisms (6), two limiting mechanisms (6) correspond to a plurality of limiting holes (9) respectively, and rotating mechanisms (7) are arranged at the upper ends of the two limiting mechanisms (6).

2. A fire sleeve partial reinforcement structure according to claim 1, wherein: Both of the positioning mechanisms (8) comprise a pull ring (81), a mounting disc (82), a plurality of connecting blocks (83), a circular hole (85), a positioning rod (84), a side block (15) and a through hole (16), the mounting disc (82) is fixedly connected to the outer side of the second supporting plate (5) through the plurality of connecting blocks (83), the positioning rod (84) is movably sleeved with the mounting disc (82) through the circular hole (85), one end of the positioning rod (84) penetrates through the first positioning hole (12) and is movably inserted into the second positioning hole (13), and the other end of the positioning rod (84) is fixedly connected with the pull ring (81).

3. A fire sleeve partial reinforcement structure according to claim 1, wherein: Both of the limiting mechanisms (6) comprise a plurality of limiting rods (61), a stress block (62), two springs (63), a fixed block (64), two connecting rods (65) and a mounting block (66), the fixed block (64) is fixedly connected to the outer side of the reinforcing frame (3), the connecting rods (65) are movably sleeved on both sides of the fixed block (64), the mounting block (66) is fixedly connected to the bottom ends of the two connecting rods (65), a plurality of limiting rods (61) matched with the limiting holes (9) are vertically fixed to the bottom end of the mounting block (66), the plurality of limiting rods (61) are movably inserted into the corresponding limiting holes (9), the stress block (62) is fixedly connected to the top ends of the two connecting rods (65), the two springs (63) are fixedly connected between the stress block (62) and the fixed block (64), and the two springs (63) are sleeved on the outer peripheries of the two connecting rods (65).

4. A fire sleeve partial reinforcement structure according to claim 1, wherein: Said rotating mechanism (7) includes a rotating block (71), a rotating rod (72), a rotating disc (73) and two planes (74), one side of the rotating block (71) is fixedly connected with the rotating rod (72), one end, away from the rotating block (71), of the rotating rod (72) is rotatably connected with the outside of the reinforcing frame (3), the outside of the rotating rod (72) is fixedly sleeved with the rotating disc (73), the rotating disc (73) is elliptical, the outside of the rotating disc (73) is in contact with the bottom surface of the stress block (62), and both ends of the rotating disc (73) are provided with the planes (74).

5. A fire sleeve partial reinforcement structure according to claim 2, wherein: A through hole (16) is arranged on the side wall of the round hole (85), and a side block (15) matched with the through hole (16) is fixedly connected to the outside of the positioning rod (84).

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