Fabricated compression-resistant ventilation air pipe

Abstract

The utility model provides an assembly type pressure-resistant ventilation air duct, which belongs to the technical field of ventilation air ducts, and comprises a plurality of groups of air duct sections, each air duct section comprises a clamping fixed end and an inserting fixed end, the left side and the right side of each clamping fixed end are respectively provided with a group of external bosses, and the inserting fixed ends are respectively provided with a group of external bosses. The bottom end of the external boss is rotationally connected with one side of the bottom end of a clamp through a rotating shaft, the positions, corresponding to the external boss, of the left side and the right side of the insertion fixing end are each provided with a set of clamping blocks, and the external boss and the clamping blocks are fastened and fixed through the clamp between the air pipe sections; the air pipe sections are used for achieving splicing assembly between the air pipe sections, reinforcing ribs are arranged on the outer walls of the air pipe sections at intervals, and the reinforcing ribs are of an inclined strip-shaped structure. Clamping protrusions are arranged on the upper side and the lower side of the clamping fixing end. According to the utility model, the problems of long time consumption and low efficiency during connection and assembly of multiple sections of air pipes can be solved, and the convenience of connection of the multiple sections of air pipes is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation ducts, and in particular relates to an assembled pressure-resistant ventilation duct. Background Art

[0002] In the fields of construction and industry, ventilation ducts are one of the key devices to ensure air quality and appropriate temperature. They are often used to deliver fresh air into buildings and exhaust dirty air to the outside, thereby maintaining the comfort and health of the indoor environment. With the continuous development and changes in building structures, the layout and design of ventilation systems are also being optimized. In order to enable ventilation ducts to adapt to more complex and changeable building structures and layout requirements, the use of assembled ventilation ducts has gradually become popular. Compared with traditional integrated ducts, assembled ducts have higher flexibility and adjustability, can better adapt to the needs of different places, and improve the efficiency and performance of the ventilation system.

[0003] In the prior art, the assembled ventilation branch pipes usually require multiple holes on the external connection to be locked and fixed in order to ensure good sealing and stability during the splicing and assembly process. Therefore, the assembly construction process is time-consuming and inefficient. Utility Model Content

[0004] In view of this, the utility model provides an assembled pressure-resistant ventilation duct, which can solve the problem of long time consumption and low efficiency in the connection and assembly of multiple sections of duct, and improve the convenience of connecting multiple sections of duct.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an assembled pressure-resistant ventilation duct, which includes a plurality of duct segments, wherein the duct segments include a clamping fixed end and a plug-in fixed end, a group of external bosses are arranged on both sides of the clamping fixed end, the bottom end of the external boss is rotatably connected to one side of the bottom end of the clamp through a rotating shaft, a group of clamping blocks are arranged on both sides of the plug-in fixed end corresponding to the position of the external boss, the external boss and the clamping block are fastened and fixed between the duct segments by the clamp, so as to realize splicing and assembly between the duct segments, and reinforcing ribs are arranged at intervals on the outer wall of the duct segment, and the reinforcing ribs are an oblique strip structure.

[0007] The technical effects of an assembled pressure-resistant ventilation duct provided by the utility model are as follows: by setting a plurality of groups of duct segments and fixing them by plugging in matching clamps, the splicing and assembly of the entire duct section is facilitated, and the clamps are clamped corresponding to the positions of the external bosses and the clamping blocks, so that the duct segments can be firmly fastened and fixed, ensuring the stability and sealing of the splicing, reducing the number of fixing bolts and improving the installation efficiency; by setting reinforcing ribs, it is used to improve the overall strength and stability of the duct, reducing the possibility of local deformation or rupture due to external forces.

[0008] On the basis of the above technical solution, the utility model can also make the following improvements to the assembled pressure-resistant ventilation duct:

[0009] Wherein, clamping protrusions are arranged on the upper and lower sides of the clamping fixing end, and the clamping protrusions and the clamping fixing end are an integrated structure.

[0010] Furthermore, the plug-in fixing end is provided with an inner concave slot adapted to the size of the clamping protrusion at a position corresponding to the clamping protrusion, so as to cooperate with the clamping protrusion to align and splice the upper and lower sides.

[0011] The beneficial effect of adopting the above-mentioned improvement scheme is that adjacent air duct segments are plugged in by setting the convex clamps corresponding to the concave slots.

[0012] Furthermore, a groove is provided on the contact surface between the clamping fixing end and the plug-in fixing end, and a sealing strip is provided inside the groove.

[0013] The beneficial effect of adopting the above-mentioned improvement scheme is: by providing a sealing strip, the assembly sealing between the air duct segments is strengthened.

[0014] Furthermore, one end of the sealing strip contacts the inner wall of the groove, and the other end contacts the plug-in fixing end surface of an adjacent group of the air duct segments.

[0015] The beneficial effect of adopting the above-mentioned improvement scheme is that the sealing performance of the air duct is enhanced by pressing and contacting the two side surfaces with the sealing strip.

[0016] Furthermore, a through hole is provided on one side of the clamp that contacts the clamp block, a threaded hole is provided at a position of the clamp block corresponding to the through hole, a locking bolt is provided outside the through hole, and the locking bolt is used to lock and fix the clamp and the clamp block.

[0017] The beneficial effect of adopting the above-mentioned improvement scheme is: a locking bolt is provided between the clamp and the clamp block, which is used to clamp and fix the clamping fixing end and the plug-in fixing end of the adjacent air duct segments through the clamp, and then further lock and fix them by tightening the locking bolt.

[0018] Furthermore, the cross-section of the outer wall of the air duct segment is rectangular, and a group of convex bars are provided at the four corners of the cross-section of the air duct segment.

[0019] Furthermore, the reinforcing ribs are arranged between two groups of the convex bars on the same plane and are welded and fixed to the outer wall of the air duct segment.

[0020] Furthermore, the cross-sections of both ends of the internal air duct of the air duct segment are circular, and an extension portion is provided at the end of the internal air duct close to the clamping fixing end.

[0021] Furthermore, the opening size of the end of the internal air duct close to the plug-in fixing end is adapted to the outer diameter size of the extension portion.

[0022] Compared with the prior art, the utility model provides an assembled pressure-resistant ventilation duct with the following beneficial effects: by setting a plurality of groups of duct segments and fixing them by plugging in with clamps, the splicing and assembly of the entire section of the duct is facilitated, and the clamps are clamped corresponding to the positions of the external bosses and the blocks, so that the duct segments can be firmly fastened and fixed, ensuring the stability and sealing of the splicing, reducing the number of fixing bolts, and improving the installation efficiency; by setting reinforcing ribs, it is used to improve the overall strength and stability of the duct, reducing the possibility of local deformation or rupture due to external force; a locking bolt is provided between the clamp and the block, which is used to fix the clamping fixed end and the plug-in fixed end of the adjacent duct segments by clamping and fixing them, and then further locking and fixing them by tightening the locking bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the side section structure of an assembled pressure-resistant ventilation duct;

[0025] Figure 2 It is a schematic diagram of the top section structure of an assembled pressure-resistant ventilation duct;

[0026] Figure 3 A schematic diagram of a reinforced rib strip for an air duct segment of an assembled pressure-resistant ventilation air duct;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 10. Duct segment; 11. Clip-on fixed end; 12. Plug-in fixed end; 13. External boss; 14. Rotating shaft; 15. Clamp; 16. Block; 17. Reinforcing rib; 18. Clip convex; 19. Sealing rubber strip; 20. Protruding bar; 21. Extension; 22. Locking bolt. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0030] like Figure 1-3 As shown, it is an embodiment of an assembled pressure-resistant ventilation duct provided by the utility model. In this embodiment, it includes a plurality of groups of duct segments 10. The duct segments 10 include a clamping fixed end 11 and a plug-in fixed end 12. A group of external bosses 13 are arranged on both sides of the clamping fixed end 11. The bottom end of the external boss 13 is rotatably connected to one side of the bottom end of the clamp 15 through a rotating shaft 14. A group of clamping blocks 16 are arranged on both sides of the plug-in fixed end 12 corresponding to the position of the external boss 13. The external boss 13 and the clamping blocks 16 are fastened and fixed between the duct segments 10 through the clamp 15 to realize the splicing and assembly between the duct segments 10. The outer wall of the duct segment 10 is arranged with reinforcing ribs 17 at intervals. The reinforcing ribs 17 are oblique strip structures.

[0031] When in use, the clamping fixed ends 11 of the two adjacent groups of duct segments 10 are aligned with the plug-in fixed ends 12, and the clamping protrusions 18 of the clamping fixed ends 11 are plugged and fixed to the corresponding concave slots of the plug-in fixed ends 12. At this time, one side of the external boss 13 should be tightly fitted with the surface of one side of the block 16, and the sealing strip 19 is under pressure. Then, the clamp 15 is used to clamp the external boss 13 and the block 16 upward through the rotating shaft 14, and then the clamp 15 and the block 16 are fixed by the locking bolt 22. The adjacent duct segments 10 are spliced ​​and installed in the above manner in turn to complete the assembly connection of the entire set of ventilation branch pipes.

[0032] Among them, in the above technical solution, the upper and lower sides of the clamping fixing end 11 are provided with clamping protrusions 18 , and the clamping protrusions 18 and the clamping fixing end 11 are an integral structure.

[0033] Furthermore, in the above technical solution, an inner concave slot adapted to the size of the locking protrusion 18 is provided at the position of the plug-in fixing end 12 corresponding to the locking protrusion 18, so as to cooperate with the locking protrusion 18 to align and splice the upper and lower sides.

[0034] Furthermore, in the above technical solution, a groove is provided on the contact surface between the clamping fixing end 11 and the plug-in fixing end 12, and a sealing strip 19 is provided inside the groove.

[0035] Furthermore, in the above technical solution, one end of the sealing strip 19 contacts the inner wall of the groove, and the other end contacts the surface of the plug-in fixing end 12 of an adjacent group of air duct segments 10 .

[0036] Furthermore, in the above technical solution, a through hole is provided on the side where the clamp 15 contacts the clamp block 16 , a threaded hole is provided at the position of the clamp block 16 corresponding to the through hole, and a locking bolt 22 is provided outside the through hole for locking and fixing the clamp 15 and the clamp block 16 .

[0037] Furthermore, in the above technical solution, the cross-section of the outer wall of the air duct segment 10 is rectangular, and a group of protruding bars 20 are provided at the four corners of the cross-section of the air duct segment 10 .

[0038] Furthermore, in the above technical solution, the reinforcing ribs 17 are arranged between two groups of protruding bars 20 on the same plane, and are welded and fixed to the outer wall of the air duct segment 10 .

[0039] The reinforcing ribs 17 are oblique strip structures, and the air duct segment 10 has four outer side surfaces. The reinforcing ribs 17 of the air duct segment 10 of the same segment are connected to each other at the four side surfaces through the convex bars 20, so as to provide stronger supporting strength.

[0040] Furthermore, in the above technical solution, the cross-sections of both ends of the internal air duct of the air duct segment 10 are circular, and an extension portion 21 is provided at the end of the internal air duct close to the clamping fixing end 11 .

[0041] Furthermore, in the above technical solution, the opening size of the end of the internal air duct close to the plug-in fixing end 12 is adapted to the outer diameter size of the extension portion 21 .

[0042] Specifically, the principle of the utility model is: when in use, the clamping fixed ends 11 of the two adjacent groups of duct segments 10 are aligned with the plug-in fixed ends 12, and the clamping protrusions 18 of the clamping fixed ends 11 are plugged and fixed to the corresponding concave slots of the plug-in fixed ends 12. At this time, one side of the external boss 13 should be tightly fitted with the surface of one side of the block 16, and the sealing strip 19 is under pressure. Then, the clamp 15 is used to clamp the external boss 13 and the block 16 upward through the rotating shaft 14, and then the clamp 15 and the block 16 are fixed by the locking bolt 22. The adjacent duct segments 10 are spliced ​​and installed in the above manner in turn to complete the assembly connection of the entire set of ventilation branch pipes.

Claims

1. An assembled pressure-resistant ventilation duct, characterized in that: The invention comprises a plurality of groups of air duct segments (10), wherein the air duct segments (10) comprise a clamping fixed end (11) and a plug-in fixed end (12), wherein a group of external bosses (13) are arranged on both sides of the clamping fixed end (11), wherein the bottom end of the external bosses (13) is rotatably connected to one side of the bottom end of a clamp (15) via a rotating shaft (14), and a group of clamping blocks (16) are arranged on both sides of the plug-in fixed end (12) corresponding to the positions of the external bosses (13), wherein the external bosses (13) and the clamping blocks (16) are fastened and fixed between the air duct segments (10) via the clamp (15) to realize splicing and assembly between the air duct segments (10), and reinforcing ribs (17) are arranged at intervals on the outer wall of the air duct segments (10), wherein the reinforcing ribs (17) are oblique strip structures.

2. The assembled pressure-resistant ventilation duct according to claim 1, characterized in that: The upper and lower sides of the clamping fixing end (11) are provided with clamping protrusions (18), and the clamping protrusions (18) and the clamping fixing end (11) are an integral structure.

3. The assembled pressure-resistant ventilation duct according to claim 2, characterized in that: The plug-in fixing end (12) is provided with an inner concave slot adapted to the size of the clamping protrusion (18) at a position corresponding to the clamping protrusion (18), and is used to cooperate with the clamping protrusion (18) to align and splice the upper and lower sides.

4. The assembled pressure-resistant ventilation duct according to claim 3 is characterized in that: A groove is provided on the contact surface between the clamping fixing end (11) and the plug-in fixing end (12), and a sealing rubber strip (19) is provided inside the groove.

5. The assembled pressure-resistant ventilation duct according to claim 4, characterized in that: One end of the sealing strip (19) contacts the inner wall of the groove, and the other end contacts the surface of the plug-in fixing end (12) of an adjacent group of the air duct segments (10).

6. The assembled pressure-resistant ventilation duct according to claim 5, characterized in that: A through hole is provided on the side of the clamp (15) that contacts the clamp block (16); a threaded hole is provided on the clamp block (16) at a position corresponding to the through hole; a locking bolt (22) is provided outside the through hole; the locking bolt (22) is used to lock and fix the clamp (15) and the clamp block (16).

7. The assembled pressure-resistant ventilation duct according to claim 6, characterized in that: The outer wall cross section of the air duct segment (10) is rectangular, and a group of convex bars (20) are provided at the four corners of the cross section of the air duct segment (10).

8. The assembled pressure-resistant ventilation duct according to claim 7, characterized in that: The reinforcing ribs (17) are arranged between two groups of the convex bars (20) on the same plane and are fixed to the outer wall of the air duct segment (10) by welding.

9. The assembled pressure-resistant ventilation duct according to claim 8, characterized in that: The cross-sections of both ends of the internal air duct of the air duct segment (10) are circular, and an extension portion (21) is provided at the end of the internal air duct close to the clamping fixing end (11).

10. The assembled pressure-resistant ventilation duct according to claim 9, characterized in that: The opening size of the end of the internal air duct close to the plug-in fixing end (12) is adapted to the outer diameter size of the extension portion (21).

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