Fire-fighting smoke exhaust pipeline connecting device

Abstract

The utility model belongs to the technical field of pipeline connection, and particularly relates to a fire-fighting smoke exhaust pipeline connecting device which comprises two sections of smoke exhaust pipes which are connected with each other, the smoke exhaust pipes are integrally arranged in a square pipe shape, flanges are fixedly arranged at the two ends of each section of smoke exhaust pipe, and a connecting assembly is arranged between the two sections of smoke exhaust pipes. The connecting assembly is matched with the flange and arranged on the periphery of the smoke exhaust pipe in a surrounding mode, the connecting assembly comprises two oppositely-arranged connecting units, a screw rod is arranged between the two connecting units in a matched mode, each connecting unit comprises a mounting plate, two connecting plates are hinged to the two ends of the mounting plate respectively, and hinged shafts are arranged on the connecting plates in a matched mode. The two ends of the screw are connected with the two connecting units through the two hinged shafts respectively, the cross section of the mounting plate is integrally arranged in a concave shape, and the vertical section of the connecting plate is integrally arranged in a concave shape. According to the device, quick connection and disassembly of the fire-fighting smoke exhaust pipeline can be realized, the time required for assembly and disassembly is shortened, and the human input is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connection, and in particular relates to a fire smoke exhaust pipeline connection device. Background Art

[0002] Building fire protection facilities are equipment and facilities set up inside buildings, specifically for preventing and fighting building fires, including automatic fire alarm systems, automatic sprinkler systems, and fire hydrant systems. Among the many building fire protection facilities, the more commonly used ones are automatic fire alarm systems and smoke and exhaust systems. Among them, the smoke and exhaust system plays a key role, mainly covering fire smoke exhaust pipes and smoke exhaust fans and other components. Fire smoke exhaust pipes can guide smoke out of buildings, create a relatively clear environment for personnel evacuation and fire rescue, and minimize the smoke hazards at the fire scene.

[0003] Chinese patent CN212156270U discloses a new type of fire smoke exhaust pipe, including a pipe body, flange 1, flange 2, pipe windproof valve and threaded screw. Flange 1 is fixedly connected to the outer edges of both ends of the pipe body, one of the flanges is fixedly connected to flange 2 by screws, the flange 2 is fixedly connected to the pipe windproof valve, and the middle of the pipe body is fixedly connected with threaded screws running through the upper and lower parts. This patent has good fireproof effect and low production cost, but adjacent pipes are connected by several bolts, and the bolts need to be screwed one by one during disassembly and assembly, which is time-consuming and labor-intensive, affecting the maintenance and upgrade of the entire fire smoke exhaust pipe system. Utility Model Content

[0004] The utility model aims to provide a fire smoke exhaust pipe connecting device, which can realize the rapid connection and disassembly of the fire smoke exhaust pipe, shorten the time required for installation and disassembly, and reduce the manpower investment.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A fire smoke exhaust pipe connection device comprises two sections of smoke exhaust pipes connected to each other. The smoke exhaust pipes are arranged in a square tube shape as a whole. Flanges are fixedly arranged at both ends of each section of the smoke exhaust pipe. A connection assembly is arranged between the two sections of the smoke exhaust pipe. The connection assembly cooperates with the flange and is arranged around the outer periphery of the smoke exhaust pipe. The connection assembly comprises two connecting units arranged opposite to each other. A screw is arranged between the two connecting units. Each connecting unit comprises a mounting plate. Two connecting plates are hinged at both ends of the mounting plate. A hinge shaft is arranged on the connecting plate. The two ends of the screw rod are connected to the two connecting units through two hinge shafts respectively. The cross section of the mounting plate is arranged in a concave shape as a whole. The vertical cross section of the connecting plate is arranged in a concave shape as a whole. When in use, the mounting plates of the two connecting units are placed opposite to each other in a manner adapted to the flanges, wherein one connecting unit is connected to the corresponding connecting plate of the other connecting unit by means of connecting plates hinged at both ends of the mounting plates, thereby connecting the two connecting units, and the distance between the two connecting units is adjusted by means of screws so that the flange fits tightly in the concave space between the mounting plate and the connecting plate to ensure a firm connection. The fire smoke exhaust duct connection device reduces the number of screws used, is simple and convenient to disassemble and assemble, and improves disassembly and assembly efficiency.

[0007] Preferably, a plug is fixedly provided on the flange at one end of the exhaust pipe, and a slot is fixedly provided on the flange at the other end of the exhaust pipe to match the plug. When the exhaust pipe is connected, the plug can be tightly inserted into the slot, thereby enhancing the sealing of the flange connection.

[0008] Preferably, the mounting plate includes a mounting middle plate, two mounting side plates are provided with matching flanges on both sides of the mounting middle plate, and the matching flanges are provided with chamfers on the inner wall edges of the mounting side plates. When the mounting plate and the flange are docked, the chamfers can play a guiding role, so that the flange can be smoothly inserted into the mounting plate.

[0009] Preferably, the connecting plate includes a connecting middle plate, two connecting side plates are provided with matching flanges on both sides of the connecting middle plate, and chamfers are provided along the matching flanges on the inner wall edges of the connecting side plates. When the connecting plate and the flange are docked, the chamfers can play a guiding role, so that the flange can be smoothly inserted into the connecting plate.

[0010] Preferably, the cross section of the exhaust pipe is generally square, the length of the installation middle plate is equal to the side length of the cross section of the exhaust pipe, and the length of the connecting middle plate is less than half the length of the installation middle plate. After the exhaust pipe is connected, the force distribution between the installation plate and the connecting plate is more reasonable, which is conducive to improving the stability of the exhaust pipe connection.

[0011] Preferably, both ends of the mounting plate are fixedly provided with hinge seats, and one end of the connecting plate is fixedly provided with a hinge joint in cooperation with the hinge seats.

[0012] Preferably, the hinge seat and the hinge joint are both provided with through holes, a hinge shaft is passed through the through hole, and the hinge joint is hinged to the hinge seat through the hinge shaft. The connecting plate is hinged to the mounting plate through the hinge seat, the hinge joint and the hinge shaft.

[0013] Preferably, both connecting side plates of the connecting plate are provided with hinge holes, and a hinge shaft is arranged in each hinge hole.

[0014] Preferably, the hinge shaft comprises a connecting piece, one end of which is hinged to the hinge hole, and the other end of the connecting piece is provided with a fixing block, and a threaded hole is penetrated through the fixing block.

[0015] Preferably, a screw rod is arranged in the threaded hole, and two nuts are respectively installed at both ends of the screw rod.

[0016] The beneficial effects of the utility model are:

[0017] When in use, the mounting plates of the two connection units are placed opposite to each other in a manner adapted to the flanges, wherein one connection unit is connected to the corresponding connection plate of the other connection unit by means of the connection plates hinged at both ends of the mounting plate, thereby connecting the two connection units, and the distance between the two connection units is adjusted by means of screws so that the flange fits tightly in the concave space between the mounting plate and the connection plate, thereby ensuring a firm connection; the fire smoke exhaust duct connection device reduces the number of screws used, can realize quick connection and disassembly of the fire smoke exhaust duct, shortens the time required for installation and disassembly, and reduces manpower investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of the utility model;

[0019] Figure 2 It is a partial structural cross-sectional schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model without the smoke exhaust pipe, flange, plug and slot;

[0021] Figure 4 It is a structural schematic diagram of the connecting plate, hinge joint and hinge hole in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the screw rod and hinge shaft in the utility model;

[0023] In the figure:

[0024] 1. Exhaust pipe; 2. Screw; 3. Mounting plate; 301. Install middle plate; 302. Install side plate; 4. Connecting plate; 401. Connect middle plate; 402. Connect side plate; 5. Hinge shaft; 501. Connector; 502. Fixing block; 6. Hinge shaft; 7. Hinge seat; 8. Hinge joint; 9. Hinge hole; 10. Flange; 11. Plug; 12. Slot. DETAILED DESCRIPTION

[0025] The present invention will be specifically described and illustrated below in conjunction with the embodiments.

[0026] Example 1

[0027] like Figure 1-5 As shown, the fire smoke exhaust pipe connection device described in the utility model includes two sections of smoke exhaust pipes 1 connected to each other. The smoke exhaust pipes 1 are arranged in a square tube shape as a whole. Flanges 10 are fixedly arranged at both ends of each section of the smoke exhaust pipe 1. A connecting component is arranged between the two sections of the smoke exhaust pipes 1. The connecting component cooperates with the flange 10 and is arranged around the outer periphery of the smoke exhaust pipe 1. The connecting component includes two connecting units arranged opposite to each other. A screw rod 2 is arranged between the two connecting units. Each connecting unit includes a mounting plate 3. Two connecting plates 4 are hinged at both ends of the mounting plate 3. A hinge shaft 5 is arranged on the connecting plate 4. The two ends of the screw rod 2 are connected to the two connecting units through two hinge shafts 5 respectively. The cross section of the mounting plate 3 is arranged in a concave shape as a whole, and the vertical section of the connecting plate 4 is arranged in a concave shape as a whole.

[0028] When in use, first place the mounting plate 3 of the first connecting unit on one side of the flange 10, and then place the mounting plate 3 of the second connecting unit on the other side of the flange 10. The first connecting unit is connected to the connecting plate 4 of the second connecting unit through the connecting plates 4 hinged at both ends of the mounting plate 3, so that the first connecting unit is connected to the second connecting unit. The distance between the two connecting units is adjusted by using the screw 2 so that the flange 10 fits tightly in the concave space between the mounting plate 3 and the connecting plate 4 to ensure a firm connection.

[0029] A plug 11 is fixedly arranged on the flange 10 at one end of the exhaust pipe 1, and a slot 12 is fixedly arranged on the flange 10 at the other end of the exhaust pipe 1 to match the plug 11. When the exhaust pipe 1 is connected, the plug 11 can be tightly inserted into the slot 12, thereby enhancing the sealing of the flange 10 connection.

[0030] The mounting plate 3 includes a mounting middle plate 301, and two mounting side plates 302 are provided on both sides of the mounting middle plate 301 to match the flange 10. The inner wall edges of the mounting side plates 302 are provided to match the flange 10. When the mounting plate 3 is docked with the flange 10, the chamfer can play a guiding role, so that the flange 10 can be smoothly inserted into the mounting plate 3.

[0031] The connecting plate 4 includes a connecting middle plate 401, and two connecting side plates 402 are provided on both sides of the connecting middle plate 401 to match the flange 10. The inner wall edges of the connecting side plates 402 are provided with chamfers to match the flange 10. When the connecting plate 4 is connected to the flange 10, the chamfers can play a guiding role, so that the flange 10 can be smoothly inserted into the connecting plate 4.

[0032] The cross section of the exhaust pipe 1 is generally square, the length of the installation middle plate 301 is equal to the side length of the cross section of the exhaust pipe 1, and the length of the connecting middle plate 401 is less than half the length of the installation middle plate 301. After the exhaust pipe 1 is connected, the force distribution between the installation plate 3 and the connecting plate 4 is more reasonable, which is conducive to improving the stability of the connection of the exhaust pipe 1.

[0033] Both ends of the mounting plate 3 are fixedly provided with hinge seats 7 , and one end of the connecting plate 4 is fixedly provided with a hinge joint 8 in cooperation with the hinge seats 7 .

[0034] The hinge seat 7 and the hinge joint 8 are both provided with through holes, and the hinge shaft 6 is penetrated in the through holes. The hinge joint 8 is hinged to the hinge seat 7 through the hinge shaft 6. The connecting plate 4 is hinged to the mounting plate 3 through the hinge seat 7, the hinge joint 8 and the hinge shaft 6.

[0035] The two connecting side plates 402 of the connecting plate 4 are both provided with hinge holes 9 , and a hinge shaft 5 is arranged in each hinge hole 9 .

[0036] The hinge shaft 5 includes a connecting member 501 , one end of which is hinged to the hinge hole 9 , and the other end of the connecting member 501 is provided with a fixing block 502 , and the fixing block 502 is penetrated by a threaded hole.

[0037] A screw rod 2 is arranged in the threaded hole, and two nuts are respectively installed at both ends of the screw rod 2.

Claims

1. A fire smoke exhaust pipe connection device, comprising two mutually connected smoke exhaust pipes (1), the smoke exhaust pipes (1) being arranged in a square tube shape as a whole, and flanges (10) being fixedly arranged at both ends of each smoke exhaust pipe (1), characterized in that: A connecting assembly is arranged between the two smoke exhaust pipes (1), and the connecting assembly cooperates with a flange (10) arranged around the outer circumference of the smoke exhaust pipe (1). The connecting assembly comprises two connecting units arranged opposite to each other, and a screw rod (2) is arranged between the two connecting units. Each connecting unit comprises a mounting plate (3), and two connecting plates (4) are hingedly connected at both ends of the mounting plate (3). A hinge shaft (5) is arranged on the connecting plate (4), and the two connecting units are connected at both ends of the screw rod (2) through the two hinge shafts (5). The cross section of the mounting plate (3) is generally concave in shape, and the vertical section of the connecting plate (4) is generally concave in shape.

2. The fire smoke exhaust pipe connection device according to claim 1, characterized in that: A plug (11) is fixedly provided on the flange (10) at one end of the smoke exhaust pipe (1), and a slot (12) is fixedly provided on the flange (10) at the other end of the smoke exhaust pipe (1) to match the plug (11).

3. The fire smoke exhaust pipe connection device according to claim 1, characterized in that: The mounting plate (3) comprises a mounting middle plate (301), two mounting side plates (302) are provided on both sides of the mounting middle plate (301) to match the flanges (10), and chamfers are provided on the inner wall edges of the mounting side plates (302) to match the flanges (10).

4. The fire smoke exhaust pipe connection device according to claim 3, characterized in that: The connecting plate (4) comprises a connecting middle plate (401), two connecting side plates (402) are provided on both sides of the connecting middle plate (401) to match the flanges (10), and chamfers are provided on the inner wall edges of the connecting side plates (402) to match the flanges (10).

5. The fire smoke exhaust pipe connection device according to claim 4, characterized in that: The cross section of the smoke exhaust pipe (1) is generally square, the length of the installation intermediate plate (301) is equal to the side length of the cross section of the smoke exhaust pipe (1), and the length of the connecting intermediate plate (401) is less than half the length of the installation intermediate plate (301).

6. The fire smoke exhaust pipe connection device according to claim 5, characterized in that: Both ends of the mounting plate (3) are fixedly provided with hinge seats (7), and one end of the connecting plate (4) is fixedly provided with a hinge joint (8) in cooperation with the hinge seat (7).

7. The fire smoke exhaust pipe connection device according to claim 6, characterized in that: The hinge seat (7) and the hinge joint (8) are both provided with through holes, a hinge shaft (6) is passed through the through holes, and the hinge joint (8) is hinged to the hinge seat (7) via the hinge shaft (6).

8. The fire smoke exhaust pipe connection device according to claim 4, characterized in that: Both connecting side plates (402) of the connecting plate (4) are provided with hinge holes (9), and a hinge shaft (5) is arranged in each hinge hole (9).

9. The fire smoke exhaust pipe connection device according to claim 8, characterized in that: The hinge shaft (5) comprises a connecting piece (501), one end of the connecting piece (501) is hinged to the hinge hole (9), and the other end of the connecting piece (501) is provided with a fixing block (502), and a threaded hole is penetrated through the fixing block (502).

10. The fire smoke exhaust pipe connection device according to claim 9, characterized in that: A screw rod (2) is arranged in the threaded hole, and two nuts are respectively installed at both ends of the screw rod (2).

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