Fireproof plugging device for wall bushing

Abstract

The utility model is applicable to the technical field of wall bushings, and discloses a wall bushing fireproof plugging device which is characterized in that sealing baffles are rotatably mounted on two sides in a connecting sleeve, hollow frames are fixedly mounted at two ends of the top of the outer side of the connecting sleeve, reset twisting mechanisms are arranged in the hollow frames, and the reset twisting mechanisms are in transmission connection with the sealing baffles; and abutting mechanisms are detachably installed at the two ends of the outer side of the connecting sleeve correspondingly and movably inserted into the outer side of the sealing baffle, rotating rods are vertically and fixedly installed at the two ends of the outer side of the sealing baffle correspondingly, and the side edges of the rotating rods are rotationally installed in the connecting sleeve through bearings in a penetrating mode. According to the technical scheme, after the thermosensitive glass column is broken and loses the abutting limiting force on the sealing baffle, under the twisting restoring action of the reset torsion spring, the sealing baffle is driven to automatically conduct restoring rotation in the connecting sleeve, fireproof blocking treatment is automatically conducted on the interior of the connecting sleeve, and it is avoided that fire spreading affects the safety of other buildings.

Description

Technical Field

[0001] This utility model applies to the field of wall sleeve technology, and in particular relates to a fireproof sealing device for wall sleeves. Background Technology

[0002] Currently, wall sleeves, also known as wall pipes, waterproof sleeves, or wall pipes, are structures used to penetrate building walls, floors, and other structures, serving to provide protection, sealing, and electrical insulation.

[0003] However, when using wall sleeves for connection, their hollow interiors mean that in the event of an external fire, there is no corresponding fire-stopping mechanism to automatically block the interior of the sleeve. This allows external dust and hot air to easily move through the sleeve, adversely affecting other buildings. Therefore, we propose a fire-stopping device for wall sleeves. Utility Model Content

[0004] The main purpose of this utility model is to provide a fireproof sealing device for through-wall sleeves, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fireproof sealing device for a through-wall sleeve includes a connecting sleeve, with sealing baffles rotatably installed on both sides inside the connecting sleeve, and a sealing gasket fixedly bonded to the side surface of each sealing baffle. Hollow frames are fixedly installed at both ends of the top of the outer side of the connecting sleeve.

[0007] The hollow frame is equipped with a reset torsion mechanism, and the reset torsion mechanism is connected to the sealing baffle in a transmission manner.

[0008] Both ends of the outer side of the connecting sleeve can be detachably installed with abutting mechanisms, and the abutting mechanisms are movably inserted into the inner side of the sealing baffle.

[0009] As an optional solution to the technical solution of this application, the reset torsion mechanism includes a reset torsion spring. Both ends of the outer side of the sealing baffle are vertically fixedly installed with rotating rods, and the side of the rotating rods is rotatably installed inside the connecting sleeve through bearings. Inside the hollow frame, there is a transmission rod that rotates vertically through bearings, and the bottom of the transmission rod and the top of the side of the rotating rod are fixedly connected. Each transmission rod is movably sleeved with a reset torsion spring on its outer side.

[0010] By adopting the above technical solution, under the torsional restoring action of the reset torsion spring, after the heat-sensitive glass column breaks and loses its resistance and limiting force on the sealing baffle, the torsional restoring action of the reset torsion spring drives the sealing baffle to automatically rotate inside the connecting sleeve, automatically performing fireproof sealing treatment inside the connecting sleeve, and preventing the fire from spreading and affecting the safety of other buildings.

[0011] As an optional solution to the technical solution of this application, the abutment mechanism includes a thermosensitive glass column, and a movable groove is provided in the middle of the side of the sealing baffle away from the rotating rod. A connecting column is slidably inserted into the movable groove, and a thermosensitive glass column is fixedly installed on the top side of the connecting column.

[0012] By adopting the above technical solution, the thermal glass column is installed on the side of the sealing baffle through the connecting column. In the event of a fire, the temperature inside and outside the connecting sleeve rises above the expansion coefficient of the internal filling material of the thermal glass column. The internal filling material of the thermal glass column expands due to heat, causing the thermal glass column to rupture due to excessive pressure or structural stress imbalance, thus losing its resistance and limiting force on the sealing baffle.

[0013] As an optional solution to the technical solution of this application, both ends of the connecting sleeve are threaded and screwed with connecting bolts, and the top of the connecting bolt side is connected to the inside of the connecting column side through the thread. A screwing nut is fixedly installed on the top of the connecting bolt side, and the screwing nut is movably fitted against the outer wall of the connecting sleeve. A push plate is fixedly installed on the top of the transmission rod, and the push plate is rotatably installed on the top of the outer side of the hollow frame.

[0014] By adopting the above technical solution, the connecting column and the heat-sensitive glass column are connected by a push plate and connecting bolts, which facilitates the replacement of the heat-sensitive glass column and facilitates the reuse of the fireproof sealing inside the connecting sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The fireproof sealing device for a through-wall sleeve according to this application comprises a sealing baffle installed inside the connecting sleeve, and a transmission rod and a rotating rod connecting the sealing baffle and a return torsion spring sleeved on the outside of the rotating rod. A connecting column is installed inside the sealing baffle, and a heat-sensitive glass column is installed on the side of the connecting column. During normal use, the sealing baffle, under the resistance of the heat-sensitive glass column, can only adhere to the inner wall of the connecting sleeve, leaving the inside of the connecting sleeve open. In the event of a fire, if the temperature inside and outside the connecting sleeve rises above the expansion coefficient of the filling material inside the heat-sensitive glass column, the filling material expands due to heat. This causes the heat-sensitive glass column to rupture due to excessive pressure or structural stress imbalance, losing its resistance and limiting force on the sealing baffle. Under the torsional restoring action of the return torsion spring, the sealing baffle automatically rotates back inside the connecting sleeve, automatically performing fireproof sealing treatment inside the connecting sleeve to prevent the fire from spreading and affecting the safety of other buildings.

[0017] 2. The fireproof sealing device for a through-wall sleeve according to the technical solution of this application, by providing connecting bolts on the side of the connecting sleeve connecting column and the heat-sensitive glass column, allows the fireproof sealing of the inside of the connecting sleeve after the heat-sensitive glass column breaks. After the fire hazard is resolved, the sealing baffle can be pushed back, and the connecting bolts can be loosened to remove it from the outside of the connecting sleeve. The corresponding heat-sensitive glass column can then be replaced using the connecting bolts to fix the position of the through-wall sealing baffle, facilitating the normal use of the connecting sleeve and the fireproof sealing treatment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a fireproof sealing device for a through-wall sleeve according to the present invention;

[0019] Figure 2 This is a front view cross-sectional view of the sealing baffle of the fireproof sealing device for through-wall sleeves according to this utility model;

[0020] Figure 3 This is a side view sectional diagram of the sealing baffle of a fireproof sealing device for through-wall sleeves according to this utility model.

[0021] Reference numerals: 1. Connecting sleeve; 11. Rotating rod; 12. Sealing baffle; 2. Hollow frame; 21. Transmission rod; 22. Return torsion spring; 23. Movable groove; 24. Connecting bolt; 25. Tightening nut; 26. Connecting column; 3. Thermosensitive glass column; 31. Sealing gasket; 4. Push plate. Detailed Implementation

[0022] like Figure 1-3As shown, this utility model provides a technical solution: a fireproof sealing device for a through-wall sleeve, wherein sealing baffles 12 are rotatably installed on both sides inside the connecting sleeve 1, and a sealing gasket 31 is fixedly bonded to the side surface of each sealing baffle 12.

[0023] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, a movable groove 23 is provided in the middle of the side of the sealing baffle 12 away from the rotating rod 11. A connecting column 26 is slidably inserted into the movable groove 23. A thermosensitive glass column 3 is fixedly installed on the top side of the connecting column 26. The thermosensitive glass column 3 is filled with isopropanol-based mixture. The filling material can be replaced and adjusted according to the actual use scenario to suit fire protection scenarios with different temperature environments. When the external temperature is too high and exceeds the expansion coefficient of the filling material, the thermosensitive glass column 3 will break due to excessive pressure or structural stress imbalance. The diameter of the thermosensitive glass column 3 is larger than the inner diameter of the movable groove 23.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, hollow frames 2 are fixedly installed at both ends of the outer top of the connecting sleeve 1. Rotating rods 11 are vertically fixedly installed at both ends of the outer side of the sealing baffle 12. The side of the rotating rods 11 is rotatably installed inside the connecting sleeve 1 through bearings. Inside the hollow frame 2, there is a transmission rod 21 that rotates vertically through bearings. The bottom of the transmission rod 21 is fixedly connected to the top of the side of the rotating rod 11. A reset torsion spring 22 is movably sleeved on the outside of each transmission rod 21. The two ends of the reset torsion spring 22 abut against the inner wall of the hollow frame 2 and the outer wall of the transmission rod 21, respectively.

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, both ends of the connecting sleeve 1 are threadedly screwed with connecting bolts 24, and the top of the side of the connecting bolts 24 is threadedly connected to the inside of the side of the connecting column 26. A screw nut 25 is fixedly installed on the top of the side of the connecting bolts 24, and the screw nut 25 is movably fitted against the outer wall of the connecting sleeve 1.

[0026] In some technical solutions (through Figure 1 , Figure 2 and Figure 3 As shown, a push plate 4 is fixedly installed at the top of the transmission rod 21, and the push plate 4 is rotatably installed on the top of the outer side of the hollow frame 2.

[0027] During operation, when connecting sleeve 1 is used to connect pipes and steel structures inside different buildings, under normal use, the sealing baffle 12 adheres to the inner wall of connecting sleeve 1 under the action of the thermally sensitive glass column 3, ensuring that the inside of connecting sleeve 1 is in a connected state. However, after a fire occurs in the external environment, the internal temperature of connecting sleeve 1 continues to rise and exceeds the expansion coefficient of the filling material inside the thermally sensitive glass column 3. The filling material inside the thermally sensitive glass column 3 expands due to heat, causing the thermally sensitive glass column 3 to rupture due to excessive pressure or structural stress imbalance. After it loses its restraining force on the sealing baffle 12, under the torsional restoring action of the return torsion spring 22, the sealing baffle 12 automatically rotates back inside the connecting sleeve 1, and the two sets of sealing baffles 12 abut against each other and adhere. Fireproof sealing treatment is applied to the inside of the connecting sleeve 1. After the external fire is extinguished and the internal temperature of the connecting sleeve 1 drops to ambient temperature, the connecting bolt 24 is loosened to remove it from the side of the connecting sleeve 1. Then, a new heat-sensitive glass column 3 is removed and replaced. The hand push plate 4 is then loosened to cause the sealing baffle 12 to rotate synchronously inside the connecting sleeve 1, so that the side of the sealing baffle 12 fits against the inner wall of the connecting sleeve 1. The connecting column 26 is then inserted into the movable groove 23 inside the sealing baffle 12. The connecting bolt 24 is passed through the inside of the side of the connecting sleeve 1 and screwed into the connecting column 26. The replaced heat-sensitive glass column 3 is then fixedly installed on the side of the sealing baffle 12. The sealing baffle 12 is then subjected to a stop and limit treatment to ensure that the inside of the connecting sleeve 1 is in a connected state.

Claims

1. A fireproof sealing device for a through-wall sleeve, comprising a connecting sleeve (1), characterized in that: The connecting sleeve (1) is rotatably installed with sealing baffles (12) on both sides inside, and hollow frames (2) are fixedly installed at both ends of the top outside of the connecting sleeve (1). The hollow frame (2) is provided with a reset torsion mechanism, and the reset torsion mechanism and the sealing baffle (12) are connected in a transmission manner; Both ends of the outer side of the connecting sleeve (1) can be detachably installed with abutting mechanisms, and the abutting mechanisms are movably inserted into the inner side of the sealing baffle (12).

2. The fireproof sealing device for through-wall sleeves according to claim 1, characterized in that: The reset torsion mechanism includes a reset torsion spring (22). Both ends of the outer side of the sealing baffle (12) are vertically fixed with rotating rods (11), and the side of the rotating rods (11) is rotatably installed inside the connecting sleeve (1) through a bearing. Inside the hollow frame (2), there is a transmission rod (21) that rotates vertically through a bearing. The bottom of the transmission rod (21) and the top of the side of the rotating rod (11) are fixedly connected. The outer side of each transmission rod (21) is movably sleeved with a reset torsion spring (22), and the two ends of the side of the reset torsion spring (22) abut against the inner wall of the hollow frame (2) and the outer wall of the transmission rod (21), respectively.

3. The fireproof sealing device for through-wall sleeves according to claim 1, characterized in that: The abutment mechanism includes a thermosensitive glass column (3). The sealing baffle (12) has a movable groove (23) in the middle of the side away from the rotating rod (11). A connecting column (26) is slidably inserted into the movable groove (23). The thermosensitive glass column (3) is fixedly installed on the top side of the connecting column (26). The thermosensitive glass column (3) is filled with isopropanol-based mixture. The filling material can be replaced and adjusted according to the actual use scenario so as to be suitable for fire protection scenarios with different temperature environments. When the external temperature is too high and exceeds the expansion coefficient of the filling material, the thermosensitive glass column (3) will break due to excessive pressure or structural stress imbalance. The diameter of the thermosensitive glass column (3) is larger than the inner diameter of the movable groove (23).

4. The fireproof sealing device for through-wall sleeves according to claim 3, characterized in that: Both ends of the connecting sleeve (1) are threadedly connected to connecting bolts (24), and the top of the connecting bolts (24) is threadedly connected to the inside of the connecting column (26). A screw nut (25) is fixedly installed on the top of the connecting bolts (24), and the screw nut (25) is movably fitted against the outer wall of the connecting sleeve (1).

5. The fireproof sealing device for through-wall sleeves according to claim 2, characterized in that: The top of the transmission rod (21) is fixedly installed with a push plate (4), and the push plate (4) is rotatably installed on the top of the outer side of the hollow frame (2).

6. The fireproof sealing device for through-wall sleeves according to claim 1, characterized in that: Each of the sealing baffles (12) has a sealing gasket (31) fixedly bonded to its side surface.

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