Fire-fighting smoke exhaust air pipe convenient to install

Abstract

The utility model discloses a fire-fighting smoke exhaust air pipe convenient to install. The fire-fighting smoke exhaust air pipe comprises an air pipe body, a first installation frame and a second installation frame. The first installation frame is connected to a pipe opening in one side of the air pipe body, and the inner walls of the upper frame and the lower frame of the first installation frame are each provided with a locking mechanism and a locking through opening. The second installation frame is connected to a pipe opening in the other side of the air pipe body, the inner walls of the upper frame and the lower frame of the second installation frame are each provided with a locking mechanism and a locking through opening, and the locking mechanism on the second installation frame corresponds to and is matched with the locking through opening in the first installation frame. And the locking port on the second mounting frame corresponds to and is matched with the locking mechanism on the first mounting frame. The device is more convenient to mount and dismount, less in time consumption and higher in efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire smoke exhaust duct technical field, concretely relates to a fire smoke exhaust duct convenient to install. BACKGROUND

[0002] The fire smoke exhaust duct is a kind of smoke exhaust device installed in building, can regulate and circulate the air inside building, improve indoor environmental quality, when fire occurs, can effectively guide and discharge smoke, toxic gas and hot gas, to guarantee the safety of personnel's evacuation and fire rescue, and the smoke exhaust duct is generally made of special material, needs to be installed in specified position in construction process in advance when using.

[0003] At present, since the duct is long, when installing the duct, the head and tail of multiple ducts are sequentially spliced together through connecting piece to form a smoke exhaust pipeline, such as the fire smoke exhaust duct disclosed in Chinese patent publication No.CN214404971U, which comprises a duct inner layer, a heat preservation layer and a duct outer layer, the duct outer layer is connected with the duct inner layer through a support, and the heat preservation layer is located between the duct inner layer and the duct outer layer.In the utility model, flanges are arranged at both ends of the duct inner layer, and the flanges are used to sequentially connect the heads and tails of multiple ducts to form a pipeline.

[0004] In the above disclosed technology, when two smoke exhaust ducts are spliced together, flanges are used for installation and fixation, since a plurality of bolts are used for fixation when using flanges for installation, workers need to repeatedly use tools for multiple tightening and fixation, when installing multiple pipes, the whole process is time-consuming and inefficient, which affects the installation progress, and when disassembling in later period, workers also need to disassemble the bolts one by one, which is inconvenient. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a fire smoke exhaust duct convenient to install to solve the technical problem that in the above background technology, when two smoke exhaust ducts are spliced together, flanges are used for installation and fixation, since a plurality of bolts are used for fixation when using flanges for installation, workers need to repeatedly use tools for multiple tightening and fixation, when installing multiple pipes, the whole process is time-consuming and inefficient, which affects the installation progress, and when disassembling in later period, workers also need to disassemble the bolts one by one, which is inconvenient.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of fire-fighting smoke exhaust duct of easy installation, including duct body, first installation frame and second installation frame;First installation frame is connected on the pipe opening of one side of the duct body, and the inner wall of the upper frame and the lower frame of the first installation frame is respectively provided with locking mechanism and locking through-port;Second installation frame is connected on the pipe opening of the other side of the duct body, and the inner wall of the upper frame and the lower frame of the second installation frame is respectively provided with locking mechanism and locking through-port, the locking mechanism on the second installation frame corresponds and is adapted with the locking through-port on the first installation frame, and the locking through-port on the second installation frame corresponds and is adapted with the locking mechanism on the first installation frame;The locking mechanism and the locking through-port on the first installation frame of the duct body are adapted with the locking through-port and the locking mechanism on the second installation frame of other duct body to splice and assemble two adjacent duct bodies into one.

[0008] In an alternative embodiment, the locking mechanism includes a fixed block, a moving assembly, and a locking block; The fixed block is connected to the inner wall of the installation frame, a horizontal through-hole is provided in the middle of the fixed block, and a sliding groove is recessed in the end face of the fixed block away from the installation frame along the length direction of the fixed block. The inner end of the sliding groove communicates with the front end of the moving channel, and the slot height of the sliding groove is less than the through-port height of the moving channel; The moving assembly is two groups, which are symmetrically arranged in the sliding groove and are in sliding connection with the sliding groove; The locking block is two, which are symmetrically arranged on the left and right through-ports of the moving channel, and the inner ends of the two locking blocks are fixedly connected with the inner ends of the two moving assemblies, and the front end face of the locking block is wedge-shaped.

[0009] In an alternative embodiment, a fixed shaft is provided in the sliding groove, and the two ends of the fixed shaft are fixed on the two side walls of the sliding groove. A telescopic spring is sleeved on the fixed shaft, and the two moving assemblies are sleeved on the fixed shaft and are in movable connection with the fixed shaft. One side of the moving assembly abuts against the telescopic spring.

[0010] In an alternative embodiment, the moving assembly includes a movable block and a push plate; The movable block is two, which are symmetrically sleeved on the fixed shaft and are in sliding connection with the top wall and the bottom wall of the sliding groove. The opposite surfaces of the two movable blocks abut against the two ends of the telescopic spring, and the inner end of the movable block is fixedly connected with the inner end of the locking block. The push plate is vertically arranged at the front end of the fixed block, and the rear side of the push plate is fixedly connected with the outer end of the movable block.

[0011] In an alternative embodiment, the top end and the bottom end of the movable block are respectively convexly provided with a sliding block, and the top wall and the bottom wall of the sliding groove are correspondingly recessed with a horizontal moving channel, and the sliding block is adapted with the horizontal moving channel.

[0012] In one optional embodiment, L-shaped notches are symmetrically provided on the opposite surfaces of the left and right sides of the first mounting frame, and strip splicing plates are vertically connected to the end surfaces of the left and right sides of the second mounting frame corresponding to the notches of the first mounting frame. The splicing plates are adapted to the notches, and fixing components are connected to the left and right sides of the first mounting frame, which are suitable for fixing the splicing plates on the notches to fix the left and right sides of the first and second mounting frames into a whole.

[0013] In one optional embodiment, the fixing component includes two fixing rods, which are respectively spaced apart and pass through the left and right sides of the first mounting frame and extend into the notch. A movable rod is vertically connected between the outer ends of the two fixing rods. A threaded rod is horizontally passed through the movable rod, and the movable rod is threadedly connected to the threaded rod. The rear end of the threaded rod is rotatably connected to the outer wall of the first mounting frame. A fixing hole is provided on the splicing plate corresponding to the two fixing rods, and the fixing hole is adapted to the fixing rod.

[0014] In one alternative embodiment, a limiting head is connected to the outer end of the threaded rod, and the outer diameter of the limiting head is larger than the outer diameter of the threaded rod.

[0015] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0016] This invention utilizes a push plate, a movable block, a fixed shaft, a telescopic spring, a slide groove, a moving channel, a locking block, and a locking port. When the first and second mounting frames are joined together, the locking blocks on the first and second mounting frames are respectively squeezed into the locking ports of the second and first mounting frames. During the squeezing process, the locking blocks and the movable block retract into the moving channel and the slide groove. When the locking blocks are completely freed from the locking ports, they will pop outward with the movable block under the action of the telescopic spring and lock onto the outer walls of the first and second mounting frames. This allows the first and second mounting frames of the two duct bodies to be quickly joined together, making installation convenient, time-saving, and efficient. When disassembly is required, the push plate is pushed inward, the movable block compresses the telescopic spring and moves the locking blocks inward until the locking blocks are completely moved into the moving channel, at which point the two mounting frames can be detached, making disassembly convenient and greatly improving the efficiency of duct installation and disassembly. Attached Figure Description

[0017] Figure 1 This is a structural diagram illustrating the assembly process of the fire-fighting smoke exhaust duct of this utility model, which is designed for easy installation.

[0018] Figure 2Structure schematic view of the air pipe body in the embodiment of the utility model;

[0019] Figure 3 Structure schematic view of the locking mechanism in the embodiment of the utility model;

[0020] Figure 4 Structure schematic view when the locking block is retracted inward in the embodiment of the utility model;

[0021] Figure 5 Structure schematic view of the moving assembly in the embodiment of the utility model;

[0022] Figure 6 Side view of the fixed block in the embodiment of the utility model;

[0023] Figure 7 Structure schematic view of the installation frame and the fixed assembly in the embodiment of the utility model;

[0024] Among them, the reference signs are:

[0025] 1, air pipe body; 2, first installation frame; 3, fixed block; 31, sliding groove; 4, locking through hole; 5, fixed rod; 6, movable rod; 7, threaded rod; 8, push plate; 9, locking block; 10, second installation frame; 11, splicing plate; 12, fixed hole; 13, extension spring; 14, movable block; 15, fixed shaft; 16, moving channel; 17, sliding block; 18, guide rail; 19, notch. Specific implementation

[0026] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present application.

[0027] The embodiments of the utility model will be described below in conjunction with Figures 1 to 7

[0028] ​The embodiment discloses a fire-fighting smoke exhaust air pipe convenient to install, which comprises an air pipe body 1, a first mounting frame 2 and a second mounting frame 10; the first mounting frame 2 is connected to a pipe opening on one side of the air pipe body 1, and the inner walls of the upper frame and the lower frame of the first mounting frame 2 are respectively provided with locking mechanisms and locking through openings 4; the second mounting frame 10 is connected to a pipe opening on the other side of the air pipe body 1, and the inner walls of the upper frame and the lower frame of the second mounting frame 10 are respectively provided with locking mechanisms and locking through openings 4, the locking mechanisms on the second mounting frame 10 correspond to and are adapted to the locking through openings 4 on the first mounting frame 2, and the locking through openings 4 on the second mounting frame 10 correspond to and are adapted to the locking mechanisms on the first mounting frame 2; the locking mechanisms and the locking through openings 4 on the first mounting frame 2 of the air pipe body 1 are adapted to the locking through openings 4 and the locking mechanisms on the second mounting frame 10 of the other air pipe body so as to splice and assemble two adjacent air pipe bodies into one.

[0029] In the above embodiment, the locking mechanisms and the locking through openings 4 are respectively arranged on the upper frame and the lower frame of the mounting frame, when splicing, the locking through openings 4 and the locking mechanisms on the first mounting frame 2 of one air pipe body 1 are aligned with the locking mechanisms and the locking through openings 4 on the second mounting frame 10, then the locking mechanisms are directly pushed into the locking through openings 4, and when disassembling, the locking mechanisms are separated from the locking through openings 4.

[0030] Further, the locking mechanism comprises a fixed block 3, a moving assembly and a locking block 9; the fixed block 3 is connected to the inner wall of the mounting frame, a horizontal one-letter-shaped moving channel 16 is horizontally arranged in the middle part of the fixed block 3, a sliding groove 31 is recessed in the end face of the fixed block 3 away from the mounting frame along the length direction of the fixed block 3, the inner end of the sliding groove 31 is communicated with the front end of the moving channel 16, and the height of the groove of the sliding groove 31 is smaller than the height of the through opening of the moving channel 16; the moving assembly is two groups, which are symmetrically arranged in the sliding groove 31 and are in sliding connection with the sliding groove 31; the locking block 9 is two blocks, which are symmetrically arranged on the left and right through openings of the moving channel 16, the inner ends of the two locking blocks 9 are fixedly connected with the inner ends of the two groups of moving assemblies, and the front end face of the locking block 9 is wedge-shaped.

[0031] Further, the chute 31 is provided with a fixed shaft 15, both ends of the fixed shaft 15 are fixed on the two side walls of the chute 31, the fixed shaft 15 is sleeved with a telescopic spring 13, two groups of the moving assembly are respectively sleeved on the fixed shaft 15 and movably connected with the fixed shaft 15, and one side of the moving assembly abuts against the telescopic spring 13. The telescopic spring 13 can make the locking block 9 shrink into the moving channel 16 when the locking block 9 is extruded during passing through the locking opening 4, and the locking block 9 can be exposed outside the moving channel 16 and clamped on the outer wall of the mounting frame under the reset action of the telescopic spring 13 after the locking block 9 is separated from the locking opening 4.

[0032] Preferably, the moving assembly comprises a movable block 14 and a push plate 8; the movable block 14 is symmetrical and sleeved on the fixed shaft 15 and slidably connected with the top wall and the bottom wall of the chute 31, the opposite surfaces of the two movable blocks 14 abut against the two ends of the telescopic spring 13, and the inner end of the movable block 14 is fixedly connected with the inner end of the locking block 9; the push plate 8 is vertically arranged at the front end of the fixed block 3, and the rear side of the push plate 8 is fixedly connected with the outer end of the movable block 14. The push plate 8 can facilitate the movement of the two movable blocks 14 on the fixed shaft 15 in the direction of approaching each other, thereby pulling the locking block 9 to shrink into the moving channel 16, and facilitating the rear movement of the fixed block 3 out of the locking opening 4, so that the two duct bodies are separated.

[0033] In the above embodiment, the fixed block 3 is slightly smaller than the caliber of the locking opening 4, the moving channel 16 is horizontally and through arranged in the middle of the fixed block 3, the chute 31 is concave in the front end surface of the fixed block 3, the rear wall of the chute 31 is through with the moving channel 16, the height of the moving channel 16 cavity is greater than the height of the chute 31 slot, that is, the moving channel 16 and the chute 31 are T-shaped in cross section, the part of the wedge surface of the locking block 9 is located outside the moving channel 16, and the part of the wedge surface of the locking block 9 is connected with the inner end of the movable block 14, because the movable block 14 is sleeved on the fixed shaft 15 and can move back and forth in the chute 31 to extrude the telescopic spring 13, when the wedge surface of the locking block 9 is limited by the caliber of the locking opening 4, the locking block 9 will be extruded to shrink into the moving channel 16, and after the locking block 9 is completely separated from the locking opening 4, the locking block 9 will move to both sides with the movable block 14 under the reset action of the telescopic spring 13, that is, the part of the locking block 9 exposed outside the moving channel 16 abuts against the outer wall of the mounting frame, so as to clamp the fixed block 3 on the mounting frame, so that the first mounting frame 2 and the second mounting frame 10 are connected together, and because the directions of the locking block 9 on the first mounting frame 2 and the locking block 9 on the second mounting frame 10 are opposite, the first mounting frame 2 and the second mounting frame 10 will be extruded towards each other, and the tightness effect is better.

[0034] In other embodiments, in order to avoid the problem of poor sealing between the first mounting frame 2 and the second mounting frame 10, rubber sealing pads can be provided on the inner walls of the first mounting frame 2 and the second mounting frame 10, so that when splicing is performed, the problem of air leakage due to gaps can be avoided.

[0035] In an alternative embodiment, the top end and the bottom end of the movable block 14 are respectively provided with sliding blocks 17, the top wall and the bottom wall of the sliding groove 31 are respectively provided with one-piece guide rails 18 corresponding to the sliding blocks 17, the guide rails 18 are adapted to the sliding blocks 17, so that the movable block 14 can smoothly slide in the sliding groove 31 and is not prone to shaking or deviation.

[0036] In an alternative embodiment, L-shaped notches 19 are symmetrically formed on the opposite faces of the left and right frames of the first mounting frame 2, vertical strip splicing plates 11 corresponding to the notches 19 of the first mounting frame 2 are respectively connected to the end faces of the left and right frames of the second mounting frame 10, the splicing plates 11 are adapted to the notches 19, and fixing assemblies are respectively connected to the left and right frames of the first mounting frame 2 to fix the splicing plates 11 in the notches 19 to integrally connect the left and right frames of the first mounting frame 2 and the second mounting frame 10. By providing splicing plates 11 and notches 19 on the left and right frames of the mounting frame, the locking effect of the two frame bodies from both sides can be further improved, and the overall stability can be improved.

[0037] In the above embodiment, notches 19 are formed on the opposite faces of the left and right frames of the first mounting frame 2, and the notches 19 are located in the middle of the frames, i.e., a notch is formed at the middle position of the frame. The height of the splicing plate 11 is slightly less than the height of the notch. When the first mounting frame 2 and the second mounting frame 10 are spliced together, the splicing plate 11 will be inserted into the notch 19. When the front end of the splicing plate 11 contacts the bottom wall of the notch 19, the outer wall of the first mounting frame 2 and the outer wall of the second mounting frame 10 will be perfectly fitted together. Then, the splicing plate 11 can be fixed in the notch 19 by the fixing assembly.

[0038] In an alternative embodiment, the fixing assembly includes two fixing rods 5, the two fixing rods 5 are respectively and spacedly arranged on the left and right frames of the first mounting frame 2 and extend into the notches 19, a movable rod 6 is vertically connected between the outer ends of the two fixing rods 5, a threaded rod 7 is horizontally arranged on the movable rod 6, the movable rod 6 is threadedly connected with the threaded rod 7, the rear end of the threaded rod 7 is rotationally connected with the outer wall of the first mounting frame 2, and fixing holes 12 corresponding to the two fixing rods 5 are formed through the splicing plate 11.

[0039] Further, the outer end of the threaded rod 7 is connected with a limiting head, the outer diameter of the limiting head is larger than the outer diameter of the threaded rod 7.

[0040] In the above embodiment, the threaded rod 7 can drive the movable rod 6 to move back and forth, and the movable rod 6 drives the fixed rod 5 to move on the mounting frame during the moving back and forth, and when moving into the gap 19, the fixed rod 5 will pass through the fixed hole 12 on the splicing plate 11, so that the splicing plate 11 is locked in the gap 19, when it is needed to move the splicing plate 11 outwards, the threaded rod 7 is rotated in the opposite direction, and when the movable rod 6 drives the fixed rod 5 to move out of the fixed hole 12, the threaded rod 7 is rotated to adjust the movement of the fixed rod 5, so that the splicing plate 11 can be fixed or loosened, and the two mounting frames can be locked and fixed or disassembled and separated.

[0041] Although the utility model has utilized the above preferable embodiment to carry out the explanation, it is not used to limit the protection scope of the utility model, any person skilled in the art is not in the spirit and range of the utility model, relatively above embodiment carries out various changes and modifications still belongs to the range of the utility model that the utility model protects.

Claims

1. A fire service smoke exhaust duct which is easy to install, characterised in that The utility model relates to a kind of air ducts, including: Air duct body; First installation frame, connect on the pipe opening of one side of the air duct body, the inner wall of the upper frame and the lower frame of the first installation frame is respectively provided with locking mechanism and locking through hole; Second installation frame, connect on the pipe opening of the other side of the air duct body, the inner wall of the upper frame and the lower frame of the second installation frame is respectively provided with locking mechanism and locking through hole, the locking mechanism on the second installation frame is corresponding and adapted with the locking through hole on the first installation frame, the locking through hole on the second installation frame is corresponding and adapted with the locking mechanism on the first installation frame; The locking mechanism and locking through hole on the first installation frame of the air duct body are adapted with the locking through hole and locking mechanism on the second installation frame of another air duct body to splice and assemble two adjacent air duct bodies into one.

2. The easily installed fire service exhaust smoke vent pipe of claim 1, wherein, The locking mechanism includes: Fixed block, connect on the inner wall of installation frame, the middle part of the fixed block is horizontally provided with a horizontal moving channel, the end face of the fixed block away from installation frame is recessed with slide groove along the length direction of the fixed block, the inner end of the slide groove is communicated with the front end of the moving channel, and the slot height of the slide groove is less than the through hole height of the moving channel; Moving assembly, two groups are respectively arranged in the slide groove and are slidably connected with the slide groove; Locking block, two blocks are respectively arranged on the left and right through holes of the moving channel, the inner end of the two locking blocks is respectively fixedly connected with the inner end of the two groups of moving assemblies, and the front end face of the locking block is wedge-shaped.

3. A fire service smoke venting duct for ease of installation according to claim 2, characterised in that, The slide groove is provided with a fixed shaft, the two ends of the fixed shaft are respectively fixed on the two side walls of the slide groove, the fixed shaft is sleeved with a telescopic spring, and the two groups of moving assemblies are respectively sleeved on the fixed shaft and movably connected with the fixed shaft, and one side of the moving assembly abuts against the telescopic spring.

4. A fire service smoke venting duct for ease of installation according to claim 3, characterised in that, The moving assembly includes: Movable block, two blocks are respectively symmetrically sleeved on the fixed shaft and slidably connected with the top wall and the bottom wall of the slide groove, the opposite surfaces of the two movable blocks are respectively abutted with the two ends of the telescopic spring, and the inner end of the movable block is fixedly connected with the inner end of the locking block; Push plate, vertically arranged on the front end of the fixed block, the rear side of the push plate is fixedly connected with the outer end of the movable block.

5. A fire service smoke venting duct for ease of installation according to claim 4, wherein, The top end and the bottom end of the movable block are respectively provided with a sliding block, and the top wall and the bottom wall of the slide groove are respectively provided with a horizontal guide rail corresponding to the sliding block, and the guide rail is adapted with the sliding block.

6. A fire service smoke venting duct for ease of installation according to any one of claims 1 to 5, wherein, The opposite surfaces of the left and right frames of the first installation frame are respectively and symmetrically provided with L-shaped notches, and the end faces of the left and right frames of the second installation frame are respectively and vertically connected with strip splicing plates corresponding to the notches of the first installation frame, the splicing plates are adapted with the notches, and the left and right frames of the first installation frame and the second installation frame are fixedly connected into one body by the fixed assemblies respectively connected on the left and right frames of the first installation frame.

7. A fire service smoke venting duct for ease of installation according to claim 6, characterised in that, The fixing assembly comprises two fixing rods, the two fixing rods are respectively arranged on the left and right side frames of the first mounting frame and extend into the notch, a movable rod is vertically connected between the outer ends of the two fixing rods, a threaded rod is horizontally arranged on the movable rod, the movable rod is threadedly connected with the threaded rod, the rear end of the threaded rod is rotationally connected with the outer wall of the first mounting frame, and two fixing holes are formed in the splicing plate and correspond to the two fixing rods.

8. A fire service smoke venting duct for ease of installation according to claim 7, characterised in that, The outer end of the threaded rod is connected with a limiting head, and the outer diameter of the limiting head is larger than the outer diameter of the threaded rod.

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