Fabricated macromolecular fireproof air duct structure

Abstract

The utility model relates to an assembly type macromolecule fireproof air duct structure, which belongs to the technical field of air ducts, and comprises two duct bodies, the end parts of the two duct bodies are fixedly connected with connecting frames, and the connecting frames on the two duct bodies abut against each other; a connecting piece for assembling the pipe body is arranged on the pipe body; the connecting piece comprises four mounting frames which are symmetrically connected to the outer side of the pipe body in a sliding mode, supporting blocks are fixedly connected to the outer sides of the mounting frames, and rotating plates are rotationally connected to the inner sides of the supporting blocks. According to the assembly type macromolecule fireproof air pipe structure, every two mounting frames can be assembled and fixed through the fixing blocks and the mounting bolts on the outer sides of the mounting frames, so that the mounting frames can be fixed to the pipe body through the mounting bolts before the pipe body is conveyed and assembled, and during assembly, only cross rods need to penetrate through the connecting blocks, and the mounting frames can be fixed to the pipe body through the mounting bolts. And the fixing screw rod is rotated to drive the fastening block to abut against the connecting frame, so that assembling is completed, and assembling convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, and particularly relates to an assembled polymer fireproof air duct structure. Background Technique

[0002] An air duct is a pipeline system used for air transportation and distribution. A fireproof air duct is made of metal, non-metal thin plates or other non-combustible materials. An assembled fireproof air duct is a fireproof air duct prefabricated in a factory in a standardized manner and assembled modularly on site.

[0003] During the actual assembly of a fireproof air duct, the flange at the end of the pipe is usually assembled and fixed by multiple groups of bolts at the end of the pipe. However, when assembling with multiple groups of bolts, multiple groups of bolts need to be tightened in sequence during actual assembly, and when disassembling and maintaining the pipe, multiple groups of bolts need to be removed, resulting in inconvenience in the entire pipe assembly and maintenance, affecting the assembly convenience of the pipe. Therefore, an assembled polymer fireproof air duct structure is proposed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an assembled polymer fireproof air duct structure, which has the advantages of improving assembly convenience and solving the problem of poor assembly convenience.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an assembled polymer fireproof air duct structure, including two pipe bodies. Connection frames are fixedly connected to the ends of both pipe bodies, and the connection frames on the two pipe bodies are in contact with each other;

[0006] A connecting piece for assembling the pipe body is arranged on the pipe body;

[0007] The connecting piece includes four mounting frames symmetrically and slidably connected to the outside of the pipe body. A support block is fixedly connected to the outside of the mounting frame. A rotating plate is rotatably connected to the inside of the support block. A fastening block penetrating the connection frame is fixedly connected to the inside of the rotating plate. The fastening block is L-shaped, and the L end of the fastening block is inclined. Assembly holes adapted to the fastening block are formed in the connection frame. Mounting blocks are fixedly connected to the middle parts of the two mounting frames on the right side, and fixing screws are arranged on the mounting blocks.

[0008] Further, the connecting piece further includes a connecting block fixedly connected to the middle parts of the two mounting frames on the left side. A cross bar is arranged on the connecting block. The mounting frame is U-shaped. A fixing block is fixedly connected to the end of the mounting frame. A mounting bolt with one end penetrating the fixing block is movably installed on the fixing block.

[0009] Furthermore, one end of the fixing screw is rotatably connected to the front mounting block, and the other end thereof passes through the rear mounting block. A threaded hole matching the fixing screw is provided on the rear mounting block. One end of the cross bar is fixedly connected to the front connecting block, and the other end thereof passes through the rear connecting block. The length of the cross bar is greater than the length of the fixing screw.

[0010] Furthermore, the number of the rotating plates is eight, and the eight rotating plates are distributed in groups of two in a staggered and symmetrical manner on four installation frames.

[0011] Furthermore, a limiting member is provided at one end of the fixed screw, and the limiting member includes a rotating block arranged on the fixed screw, a sleeve is arranged on the rotating block, a limiting rod is arranged on the inner side of the sleeve, a stopper is arranged on the outer side of the limiting rod, and a spring is arranged on the stopper.

[0012] Furthermore, a plurality of limiting grooves are provided on the front mounting block, the specifications of the limiting grooves are matched with the specifications of the limiting rods, and the plurality of limiting grooves are distributed in a circular shape and at equal intervals on the front mounting block.

[0013] Furthermore, the tube body is composed of a base layer, a first fireproof layer and a second fireproof layer, and the base layer, the first fireproof layer and the second fireproof layer are fixedly connected in sequence from the inside to the outside, the first fireproof layer is a polymer antimony trioxide flame retardant layer, and the second fireproof layer is a rock wool layer.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. In the assembled polymer fireproof duct structure, since every two installation frames can be assembled and fixed through the fixing blocks and installation bolts on the outside thereof, the installation frames can be fixed to the pipe body by the installation bolts before the pipe body is transported and assembled. During assembly, the assembly can be completed by passing the cross bar through the connecting block and rotating the fixing screw to drive the fastening block against the connecting frame, so as to improve the convenience of assembly. The spacing of the installation frames can be adjusted by the installation bolts to improve the adaptability of the entire assembly structure.

[0016] 2. The assembled polymer fireproof duct structure has a limit rod extending into the mounting block to limit and lock the fixing screw to improve the stability of the fixing screw when it is fixed, and the first fireproof layer and the second fireproof layer are arranged on the pipe body to provide double fireproofing and flame retardancy to the outside of the pipe body, thereby improving the fire resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a three-dimensional top view of the connector structure of the utility model;

[0019] Figure 3 For the present utility model Figure 2 the enlarged view of part A in it;

[0020] Figure 4 the exploded view of the limiting member structure of the present utility model;

[0021] Figure 5 the three-dimensional view of the pipe body structure of the present utility model.

[0022] In the figure: 1. Pipe body; 11. Base layer; 12. First fireproof layer; 13. Second fireproof layer; 2. Connection frame; 3. Connecting piece; 31. Installation frame; 32. Installation bolt; 33. Fixed block; 34. Support block; 35. Rotating plate; 36. Fastening block; 37. Installation block; 38. Fixed screw; 39. Limiting member; 391. Rotating block; 392. Sleeve; 393. Limiting rod; 394. Stopper; 395. Spring; 310. Cross bar; 311. Connecting block; 312. Assembly hole; 4. Sealing ring. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 , a prefabricated polymer fireproof air duct structure in this embodiment includes two pipe bodies 1. Connection frames 2 are fixedly connected to the ends of the two pipe bodies 1. A sealing ring 4 is embedded inside the connection frame 2. A connecting piece 3 for assembling the pipe body 1 is arranged on the pipe body 1.

[0025] In this embodiment, after the connection frame 2 at the end of the pipe body 1 is supported and fixed by the connecting piece 3 located on the pipe body 1, the butt joint assembly of the two pipe bodies 1 can be completed.

[0026] Please refer to Figures 1 to 2 or 5. In this embodiment, the connecting piece 3 includes four installation frames 31 that are symmetrically and slidably connected to the outside of the pipe body 1. A support block 34 is fixedly connected to the outside of the installation frame 31. A rotating plate 35 is rotatably connected to the inside of the support block 34. A fastening block 36 that penetrates the connection frame 2 is fixedly connected to the inside of the rotating plate 35. The fastening block 36 is L-shaped, and the L end of the fastening block 36 is inclined. Assembly holes 312 adapted to the fastening block 36 are formed in the connection frame 2. Installation blocks 37 are fixedly connected to the middle parts of the two installation frames 31 on the right side. Fixed screws 38 are arranged on the installation blocks 37.

[0027] Among them, the connecting member 3 further includes a connecting block 311 fixedly connected to the middle of the two left mounting frames 31. A cross bar 310 is provided on the connecting block 311. The mounting frame 31 is U-shaped, and a fixing block 33 is fixedly connected to the end of the mounting frame 31. An installation bolt 32 with one end passing through the fixing block 33 is movably installed on the fixing block 33. After the installation bolt 32 passes through the fixing block 33, every two adjacent mounting frames 31 can be assembled and fixed on the pipe body 1.

[0028] In addition, one end of the fixing screw 38 is rotatably connected to the front mounting block 37, and the other end thereof passes through the rear mounting block 37. A threaded hole adapted to the fixing screw 38 is provided on the rear mounting block 37. One end of the cross bar 310 is fixedly connected to the front connecting block 311, and the other end thereof passes through the rear connecting block 311. The length of the cross bar 310 is greater than the length of the fixing screw 38. When the two side mounting frames 31 approach each other, the cross bar 310 can first pass through the rear connecting block 311, and then the fixing screw 38 is tightened to adjust and lock the rear mounting block 37.

[0029] Secondly, the number of the rotating plates 35 is eight. The eight rotating plates 35 are symmetrically distributed in a staggered manner in pairs on the four mounting frames 31, and each group of rotating plates 35 is located on the upper and lower sides of the mounting block 37 and the connecting block 311 respectively. The connecting frame 2 is supported in a staggered manner by the fastening blocks 36 on the eight rotating plates 35, so as to perform butt joint installation on every two abutting connecting frames 2.

[0030] In this embodiment, before the pipe body 1 is transported and assembled, the mounting frame 31 can be fixed on the pipe body 1 through the installation bolt 32. During assembly, only the cross bar 310 needs to pass through the connecting block 311, and the fixing screw 38 is rotated to drive the fastening block 36 to pass through the assembly hole 312 on the connecting frame 2 and abut against the connecting frame 2 to complete the assembly, so as to improve the assembly convenience.

[0031] It should be noted that the support block 34 is U-shaped. The inner side of the support block 34 is rotatably connected to the rotating plate 35 through a rotating shaft, and a torsion spring is arranged between one end of the rotating plate 35 located inside the support block 34 and the support block 34.

[0032] Please refer to Figures 2 to 4 , in this embodiment, the limiting member 39 includes a rotating block 391 fixedly connected to one end of the fixing screw 38. A sleeve 392 is rotatably connected to the rotating block 391. A limiting rod 393 with one end passing through and extending into the front mounting block 37 is slidably connected to the inner side of the sleeve 392. A stop block 394 is fixedly connected to the outer side of the limiting rod 393, and a spring 395 is fixedly connected between the stop block 394 and the inner side of the sleeve 392.

[0033] In this embodiment, by pulling the limiting rod 393 away from the front mounting block 37, the rotating block 391 can be rotated by the limiting rod 393 to drive the fixing screw 38 to rotate accordingly.

[0034] It should be noted that a number of limiting grooves are formed on the front mounting block 37. The specifications of the limiting grooves are adapted to those of the limiting rod 393. The several limiting grooves are annularly and equidistantly distributed on the front mounting block 37. The limiting rod 393 extending into the limiting groove can limit the rotation of the fixing screw 38 by the rotation of the rotating block 391.

[0035] Please refer to Figure 1 Fig. 4 or 5. In this embodiment, the pipe body 1 is composed of a base layer 11, a first fireproof layer 12 and a second fireproof layer 13. The connecting frame 2 is located at the end of the base layer 11. The base layer 11, the first fireproof layer 12 and the second fireproof layer 13 are fixedly connected in sequence from inside to outside. The first fireproof layer 12 is fixedly connected to the outside of the base layer 11, and the second fireproof layer 13 is fixedly connected to the outside of the first fireproof layer 12. The first fireproof layer 12 is a polymer antimony trioxide flame retardant layer, and the second fireproof layer 13 is a rock wool layer.

[0036] In this embodiment, since the polymer antimony trioxide flame retardant layer absorbs heat when encountering a flame and hinders the spread of the flame, and by coating rock wool on the outside of the polymer antimony trioxide flame retardant layer, a double effect of isolating the flame can be achieved to improve the fire resistance.

[0037] The working principle of the above embodiment is:

[0038] After fixing every two adjacent mounting frames 31 on the pipe body 1 through the mounting bolts 32 on the fixing block 33, when every two pipe bodies 1 need to be assembled, only need to slide the mounting frame 31 on the pipe body 1, and then pass the cross bar 310 on the front side connecting block 311 through the rear side connecting block 311. During the passing process, the threaded hole on the rear side mounting block 37 will align with the fixing screw 38. At this time, after pulling the limiting rod 393 to separate from the front side mounting block 37, the rotating block 391 can be driven to rotate with the fixing screw 38 by rotating the limiting rod 393. When the fixing screw 38 passes through the rear side mounting block 37, it is in a threaded connection state with the rear side mounting block 37. At this time, continuing to rotate the fixing screw 38 can drive the rear side mounting frame 31 and the front side mounting frame 31 to move towards the opposite side. And because the L end of the fastening block 36 is inclined, so after the fastening blocks 36 on the front and rear sides are squeezed by the connecting frame 2, they will rotate together with the rotating plate 35 towards the direction away from the connecting frame 2 until the fastening block 36 driven by rotating the fixing screw 38 no longer abuts against the connecting frame 2, and the end of the fastening block 36 aligns with the assembly hole 312 of the connecting frame 2. Then, reversely rotating the fixing screw 38 to drive the fastening block 36 to pass through the assembly hole 312 and abut against the connecting frame 2 can complete the installation and fixation of the connecting frame 2. And loosening the limiting rod 393 and extending it into the limiting groove of the front side mounting block 37 can lock the fixing screw 38, and then the butt joint assembly between the two pipe bodies 1 can be completed.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled polymer fireproof air duct structure, comprising two tube bodies (1), characterized in that: The ends of the two tube bodies (1) are fixedly connected to a connection frame (2), and the connection frames (2) on the two tube bodies (1) are in contact with each other; The tube body (1) is provided with a connecting piece (3) for assembling the tube body (1); The connecting member (3) comprises four mounting frames (31) which are symmetrically slidably connected to the outside of the tube body (1); a support block (34) is fixedly connected to the outside of the mounting frame (31); a rotating plate (35) is rotatably connected to the inside of the supporting block (34); a fastening block (36) which passes through the connecting frame (2) is fixedly connected to the inside of the rotating plate (35); the fastening block (36) is L-shaped; the L end of the fastening block (36) is inclined; an assembly hole (312) which is compatible with the fastening block (36) is provided on the connecting frame (2); the middle parts of the two mounting frames (31) on the right are fixedly connected to mounting blocks (37); and a fixing screw (38) is provided on the mounting block (37).

2. The assembled polymer fireproof air duct structure according to claim 1, characterized in that: The connecting member (3) further comprises a connecting block (311) fixedly connected to the middle of the two left installation frames (31), a cross bar (310) being arranged on the connecting block (311), the installation frame (31) being U-shaped, a fixing block (33) being fixedly connected to the end of the installation frame (31), and a mounting bolt (32) having one end penetrating the fixing block (33) being movably mounted on the fixing block (33).

3. The assembled polymer fireproof air duct structure according to claim 2 is characterized in that: One end of the fixing screw (38) is rotatably connected to the front mounting block (37), and the other end thereof passes through the rear mounting block (37); a threaded hole matching the fixing screw (38) is provided on the rear mounting block (37); one end of the cross bar (310) is fixedly connected to the front connecting block (311), and the other end thereof passes through the rear connecting block (311); the length of the cross bar (310) is greater than the length of the fixing screw (38).

4. The assembled polymer fireproof air duct structure according to claim 1, characterized in that: The number of the rotating plates (35) is eight, and the eight rotating plates (35) are arranged in groups of two and are staggered and symmetrically distributed on the four installation frames (31).

5. The assembled polymer fireproof air duct structure according to claim 1, characterized in that: A limiting member (39) is provided at one end of the fixed screw rod (38), the limiting member (39) comprising a rotating block (391) provided on the fixed screw rod (38), a sleeve (392) provided on the rotating block (391), a limiting rod (393) provided on the inner side of the sleeve (392), a stopper (394) provided on the outer side of the limiting rod (393), and a spring (395) provided on the stopper (394).

6. The assembled polymer fireproof air duct structure according to claim 5, characterized in that: The front mounting block (37) is provided with a plurality of limit grooves, the specifications of the limit grooves being compatible with the specifications of the limit rod (393), and the plurality of limit grooves are distributed in an annular shape and at equal intervals on the front mounting block (37).

7. The assembled polymer fireproof air duct structure according to claim 1, characterized in that: The pipe body (1) is composed of a base layer (11), a first fireproof layer (12) and a second fireproof layer (13); the base layer (11), the first fireproof layer (12) and the second fireproof layer (13) are fixedly connected in sequence from the inside to the outside; the first fireproof layer (12) is a polymer antimony trioxide flame retardant layer, and the second fireproof layer (13) is a rock wool layer.

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