Combinable smoke exhaust pipeline structure for fire engineering

Abstract

The utility model relates to the field of fire-fighting engineering, and discloses a combinable smoke exhaust pipeline structure for fire-fighting engineering, which comprises a smoke pipe and a hoop, the smoke pipe is a sectional pipeline, the hoop is sleeved at a smoke pipe connecting port, the hoop is fixedly connected with a hanging bracket, a slot is arranged on the outer wall of the hoop, and the hanging bracket is fixedly connected with the smoke pipe connecting port. And combined section steel is welded to the top end and the bottom end of the outer wall of the smoke pipe. According to the combinable smoke exhaust pipeline structure for the fire engineering, the hoops are arranged, the pipelines are combined and installed in a segmented connection mode, the pipe opening of each section of smoke pipe is aligned with the hoops to be inserted into the hoops, the combined steel on the outer walls of the smoke pipes can be inserted into the limiting steel on the inner walls of the hoops from the inserting grooves in the hoops and embedded into the limiting steel on the inner walls of the hoops, and transverse clamping is formed to prevent the smoke pipes from shaking during installation; and then connecting bolts are driven in to connect the combined section steel with the limiting steel, so that through tight connection with the hoop, the connection stability is improved, the smoke pipes can be combined and installed according to the requirements of the number and the length to form a long-distance smoke exhaust pipeline, and the problem that connection is affected by disassembly and assembly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection engineering, in particular to a combinable smoke exhaust pipe structure for fire protection engineering. Background Art

[0002] Smoke exhaust ducts for fire protection engineering are an important part of the building's fire protection system. When a fire occurs, they quickly exhaust smoke and harmful gases from the building to ensure the safe evacuation of personnel and the effective rescue of firefighters. Smoke exhaust ducts are usually divided into metal ducts, non-metal ducts and composite material ducts. Metal ducts are widely used in various types of buildings due to their good high temperature resistance and fire resistance. Non-metal ducts such as fiberglass ducts and plastic ducts are used because of their light weight, easy installation and low cost.

[0003] Combined smoke exhaust ducts are mostly made of scrap metal pipes. Compared with traditional integrated pipes, combined smoke exhaust ducts can be freely combined according to actual needs, and each module can be quickly installed and disassembled through a specific connection method. However, there are still some shortcomings in the existing combined smoke exhaust duct structures on the market. The main problems are concentrated on the stability of the connection and the convenience of disassembly and assembly. The existing combined smoke exhaust duct structure usually adopts steel wire locking or directly fixed with the hanger. This connection method is prone to loosening during use. Especially when used for a long time or subjected to external force impact, the tightness of the connection will gradually weaken, causing the pipe to shake or even fall off. During disassembly and maintenance, due to the unscientific connection method, it is easy to cause damage to the connection, affecting the secondary use of the pipe.

[0004] Therefore, a combinable smoke exhaust duct structure for fire protection engineering is needed to solve these problems in the prior art. Utility Model Content

[0005] The utility model aims to provide a modular smoke exhaust duct structure for fire protection engineering, so as to solve the problems of insufficient tightness of the connection and the influence of disassembly and assembly on the connection proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a modular smoke exhaust pipe structure for fire protection engineering, comprising a smoke pipe and a hoop, the smoke pipe being a segmented pipe, a hoop being sleeved at the connection port of the smoke pipe, the hoop being fixedly connected to a hanger, a slot being provided on the outer wall of the hoop, combined steel being welded on the top and bottom ends of the outer wall of the smoke pipe, the combined steel being inserted into the inside of the hoop through the slot, limiting steel being welded on the top and bottom ends of the inner wall of the hoop, the combined steel and the limiting steel being engaged and clamped, and the combined steel and the limiting steel being fixedly connected by connecting bolts driven from the outside of the hoop.

[0007] Preferably, the limiting steel is a "Z"-shaped steel sheet, and reserved screw holes matching the connecting bolts are provided in the combined steel and the limiting steel.

[0008] Preferably, the number of smoke pipes is arranged according to the required length of the pipes.

[0009] Preferably, an inspection window is provided above the smoke outlet pipe section of the smoke duct, a fixing screw is fixedly connected to the inspection window, a flow equalizing plate is installed in the inspection window, a negative pressure fan is fixed to the flow equalizing plate, and an interception net is provided on the right side of the negative pressure fan.

[0010] Preferably, the interception net is a filter plate that matches the size of the smoke pipe, and the interception net is made of metal material.

[0011] Preferably, a bottom groove is provided at the bottom end of the interception net, a dust box is hung at the bottom end of the bottom groove, and hanging blocks are welded at the four corners of the outer wall of the interception net.

[0012] Preferably, hooks are welded at the four corners of the top of the dust box, and the hooks are fixedly connected to the hanging blocks.

[0013] Preferably, a servo motor is fixedly connected to the outer wall of the smoke pipe, the output shaft of the servo motor extends into the inside of the smoke pipe and is fixedly connected to a screw rod, the screw rod is movably assembled above the inside of the smoke pipe, a threaded block is sleeved on the outside of the screw rod, and a group of scrapers are fixedly connected to both sides of the bottom end of the threaded block.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the combinable smoke exhaust pipe structure for fire engineering not only realizes the combination and installation of smoke pipes according to the needs of quantity and length to form a long-distance smoke exhaust pipe, improves the connection stability, and does not damage the tightness of the connection when disassembling a certain section, realizes the anti-blocking function, ensures the smooth progress of fire smoke exhaust, and realizes the automatic dust removal function, reducing the time required for manual dust removal and maintenance;

[0015] (1) By providing a hoop, a combined steel, a limit steel, and a connecting bolt, the pipeline is assembled and installed in a segmented connection manner. The pipe opening of each section of the smoke pipe is aligned with the hoop and inserted. The combined steel on the outer wall of the smoke pipe is inserted from the slot at the hoop and embedded in the limit steel on the inner wall of the hoop to form a horizontal clamping connection to prevent the smoke pipe from shaking during installation. Then, the connecting bolt is driven to connect the combined steel and the limit steel. In this way, the hoop is tightly connected to the hoop, and the hoop is fixed to the hanger, which reduces the number of fixings required for the direct connection between the smoke pipe and the hanger, thereby improving the stability of the connection. The smoke pipes can be assembled and installed according to the number and length requirements to form a long-distance smoke exhaust pipe, which greatly improves the connection stability. The disassembly and assembly of a certain section will not damage the tightness of the connection.

[0016] (2) An inspection window, an interception net, and a negative pressure fan are provided. The smoke duct is provided with an inspection window at the smoke outlet. The smoke in the smoke duct is discharged toward the interception net through the negative pressure fan. The interception net can filter and intercept solid particles and other debris entrained in the smoke to prevent the smoke outlet from being blocked. The negative pressure fan and the interception net can be taken out from the inspection window above for disassembly and maintenance. They have the function of preventing blocking and ensuring the smooth operation of fire smoke exhaust;

[0017] (3) An interception net, a servo motor, a screw, a threaded block, a dust box, and a bottom groove are provided. The interception net is installed in the smoke duct, and the airflow rate thereof is often affected by dust. Therefore, a servo motor is provided. The screw is driven to rotate by the servo motor, and the threaded block is driven to move at the screw. Two sets of scrapers connected to the bottom end of the threaded block scrape the interception net from the front and back sides respectively, and the dust and impurities on the surface are scraped off and fall into the bottom groove for collection. The dust box is hung at the bottom groove and can be removed and cleaned regularly, thereby realizing the function of automatic dust removal and reducing the time required for manual dust removal and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the front view structure of the negative pressure fan of the utility model;

[0021] Figure 4 It is a schematic diagram of the side structure of the intercepting net of the utility model.

[0022] In the figure: 1. smoke pipe; 2. hanger; 3. hoop; 4. inspection window; 5. fixing screw; 6. flow equalizing plate; 7. negative pressure fan; 8. dust box; 9. bottom trough; 10. interception net; 11. scraper; 12. connecting bolt; 13. slot; 14. combined steel; 15. limit steel; 16. hook; 17. hanging block; 18. threaded block; 19. screw; 20. servo motor. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1: Please refer to Figure 1-4, a modular smoke exhaust pipe structure for fire protection engineering, including a smoke pipe 1 and a hoop 3, the smoke pipe 1 is a segmented pipe, the smoke pipe 1 is sleeved with a hoop 3 at the connection port, the hoop 3 is fixedly connected to the hanger 2, a slot 13 is opened on the outer wall of the hoop 3, the top and bottom of the outer wall of the smoke pipe 1 are welded with a composite steel 14, the composite steel 14 passes through the slot 13 and is inserted into the inside of the hoop 3, and the top and bottom of the inner wall of the hoop 3 are welded with a limiting steel 15, the composite steel 14 and the limiting steel 15 are engaged and clamped, the composite steel 14 and the limiting steel 15 are fixedly connected by driving a connecting bolt 12 from the outside of the hoop 3, the limiting steel 15 is a "Z"-shaped steel sheet, and reserved screw holes matching the connecting bolts 12 are opened in the composite steel 14 and the limiting steel 15, and the number of smoke pipes 1 is arranged according to the required length of the pipeline;

[0025] Specifically, Figure 1 and Figure 2 As shown, the pipeline is assembled and installed in a segmented connection manner, and the pipe mouth of each section of the smoke pipe 1 is aligned with the hoop 3 and inserted, and the combined steel 14 on the outer wall of the smoke pipe 1 is inserted from the slot 13 at the hoop 3 and fits into the limiting steel 15 on the inner wall of the hoop 3, forming a horizontal clamping to prevent the smoke pipe 1 from shaking during installation, and then the connecting bolts 12 are driven to connect the combined steel 14 and the limiting steel 15. In this way, the hoop 3 is tightly connected to the hanger 2, and the hoop 3 is fixed to the hanger 2, which reduces the fixings required for the direct connection between the smoke pipe 1 and the hanger 2, improves the stability of the connection, and the smoke pipe 1 can be assembled and installed according to the needs of quantity and length to form a long-distance smoke exhaust pipe.

[0026] Embodiment 2: An inspection window 4 is provided above the smoke outlet pipe section of the smoke pipe 1, and a fixing screw 5 is fixedly connected to the inspection window 4. A flow equalizing plate 6 is installed in the inspection window 4, and a negative pressure fan 7 is fixed to the flow equalizing plate 6. An interception net 10 is provided on the right side of the negative pressure fan 7. The interception net 10 is a filter plate that matches the size of the smoke pipe 1, and the interception net 10 is made of metal material;

[0027] Specifically, Figure 1 , Figure 3 and Figure 4 As shown, the smoke duct 1 is provided with an inspection window 4 at the smoke outlet, and the smoke in the smoke duct 1 is discharged toward the interception net 10 through the negative pressure fan 7. The interception net 10 can filter and intercept solid particles and other debris entrained in the smoke to prevent the smoke outlet from being blocked. The negative pressure fan 7 and the interception net 10 can be taken out from the inspection window 4 above for disassembly and maintenance.

[0028] Embodiment 3: A bottom groove 9 is provided at the bottom end of the interception net 10, a dust box 8 is hung at the bottom end of the bottom groove 9, a hanging block 17 is welded at the four corners of the outer wall of the interception net 10, a hook 16 is welded at the four corners of the top end of the dust box 8, the hook 16 is hung and fixed with the hanging block 17, a servo motor 20 is fixedly connected to the outer wall of the smoke pipe 1, the output shaft of the servo motor 20 extends to the inside of the smoke pipe 1 and is fixedly connected to a screw 19, the screw 19 is movably assembled on the top of the inside of the smoke pipe 1, a threaded block 18 is sleeved on the outside of the screw 19, and a group of scrapers 11 are fixedly connected to both sides of the bottom end of the threaded block 18;

[0029] Specifically, Figure 1 , Figure 3 and Figure 4 As shown, the interception net 10 is installed in the smoke pipe 1, and its airflow rate is often affected by dust. Therefore, a servo motor 20 is provided. The servo motor 20 drives the screw 19 to rotate, driving the threaded block 18 to move at the screw 19. Two sets of scrapers 11 connected to the bottom end of the threaded block 18 scrape the interception net 10 from the front and back sides of the interception net 10 respectively, scrape off the dust and impurities on the surface and drop them into the bottom groove 9 for collection. The dust box 8 is hung at the bottom groove 9 and can be removed and cleaned regularly.

[0030] Working principle: The pipeline is assembled and installed in a segmented connection manner. The pipe mouth of each section of the smoke pipe 1 is aligned with the hoop 3 and inserted. The combined steel 14 on the outer wall of the smoke pipe 1 will be inserted from the slot 13 at the hoop 3 and fit into the limit steel 15 on the inner wall of the hoop 3 to form a horizontal clamping to prevent the smoke pipe 1 from shaking during installation. Then the connecting bolts 12 are driven in to connect the combined steel 14 and the limit steel 15. In this way, the hoop 3 is tightly connected to the hanger 2, and the hoop 3 is fixed to the hanger 2, reducing the number of fixings required for the direct connection between the smoke pipe 1 and the hanger 2. The smoke pipe 1 is provided with an inspection window 4 at the smoke outlet, and the smoke in the smoke pipe 1 is blown away by the negative pressure fan 7. The smoke is discharged toward the interception net 10, which can filter and intercept solid particles and other debris entrained in the smoke to prevent the smoke outlet from being blocked. The interception net 10 is installed in the smoke pipe 1, and its airflow rate is often affected by dust. Therefore, a servo motor 20 is provided. The servo motor 20 drives the screw 19 to rotate, driving the threaded block 18 to move at the screw 19. The two sets of scrapers 11 connected to the bottom end of the threaded block 18 scrape the interception net 10 from the front and back sides of the interception net 10 respectively, scrape off the dust and impurities on its surface and drop them into the bottom groove 9 for collection. The dust box 8 is hung at the bottom groove 9 and can be removed and cleaned regularly.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A combinable smoke exhaust pipe structure for fire protection engineering, comprising a smoke pipe (1) and a hoop (3), characterized in that: The smoke pipe (1) is a segmented pipe. A hoop (3) is sleeved at the connection port of the smoke pipe (1). The hoop (3) is fixedly connected to the hanger (2). A slot (13) is provided on the outer wall of the hoop (3). Combination steel (14) is welded to the top and bottom of the outer wall of the smoke pipe (1). The combination steel (14) passes through the slot (13) and is inserted into the inside of the hoop (3). Limiting steel (15) is welded to the top and bottom of the inner wall of the hoop (3). The combination steel (14) and the limiting steel (15) are engaged and clamped. The combination steel (14) and the limiting steel (15) are fixedly connected by driving a connecting bolt (12) from the outside of the hoop (3).

2. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 1 is characterized in that: The limiting steel (15) is a "Z"-shaped steel sheet, and reserved screw holes matching the connecting bolts (12) are provided in the combined steel (14) and the limiting steel (15).

3. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 1 is characterized in that: The number of smoke pipes (1) is arranged according to the required length of the pipe.

4. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 1 is characterized in that: An inspection window (4) is provided above the smoke outlet pipe section of the smoke pipe (1), a fixing screw (5) is fixedly connected to the inspection window (4), a flow equalizing plate (6) is installed in the inspection window (4), a negative pressure fan (7) is fixed to the flow equalizing plate (6), and an interception net (10) is provided on the right side of the negative pressure fan (7).

5. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 4 is characterized in that: The interception net (10) is a filter plate having a size matching that of the smoke pipe (1), and the interception net (10) is made of metal material.

6. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 4 is characterized in that: The bottom end of the interception net (10) is provided with a bottom groove (9), the bottom end of the bottom groove (9) is hung with a dust box (8), and the four corners of the outer wall of the interception net (10) are welded with hanging blocks (17).

7. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 6 is characterized in that: Hooks (16) are welded to the four corners of the top of the dust box (8), and the hooks (16) are hung and fixed to the hanging blocks (17).

8. The combinable smoke exhaust pipe structure for fire protection engineering according to claim 1 is characterized in that: A servo motor (20) is fixedly connected to the outer wall of the smoke pipe (1); an output shaft of the servo motor (20) extends into the interior of the smoke pipe (1) and is fixedly connected to a screw rod (19); the screw rod (19) is movably mounted above the interior of the smoke pipe (1); a threaded block (18) is sleeved on the exterior of the screw rod (19); and a group of scrapers (11) are fixedly connected to both sides of the bottom end of the threaded block (18).

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