Combined fire-resistant air duct

Abstract

The utility model relates to the technical field of ventilation ducts, and discloses a combined fire-resistant air duct, including a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected to a fixed shell, the inner wall of the fixed shell is provided with a button, the inner wall of the fixed shell is slidably connected to a clamping rod, the outer wall of the clamping rod is slidably connected to the inner wall of the connecting sleeve, the outer wall of the clamping rod is slidably connected to a fixed plate, the outer wall of the clamping rod is fixedly connected to a clamping ring, the other end of the spring is fixedly connected to the inner wall of the fixed shell, the lower surface of the button is slidably connected to the top of the clamping ring, and the outer wall of the fixed plate is provided with an installation component, and the installation component is used to quickly install the pipeline. In the utility model, the clamping ring is driven to compress the spring by the clamping rod, and the fixing plate can be quickly fixed by the clamping rod being clamped into the inner wall of the slot, and the clamping ring is driven to slide out from the inner wall of the fixed shell by pressing the button, which plays an effect of quickly installing and disassembling the support plate during use.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a combined fire-resistant air duct. Background Art

[0002] Fire-resistant duct refers to a pipe system used to transport gas or smoke in high-temperature environments. Its materials and design can withstand high temperatures and corrosion, and have good sealing performance and structural stability. Different industries and engineering projects have different requirements for fire-resistant ducts. Some may require higher fire-resistant temperatures, while others require higher corrosion resistance. Through flexible modular design, fire-resistant ducts that meet the needs can be customized according to specific engineering requirements and environmental conditions to provide the best solution.

[0003] However, most fire-resistant air ducts do not have a structure for quick installation during use, and are usually fixed directly with bolts. However, during long-term use, the bolts may deform and corrode, making them difficult or impossible to disassemble during maintenance and disassembly. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a combined fire-resistant air duct, which aims to improve the problem that the duct is difficult or impossible to disassemble during maintenance and disassembly due to deformation and corrosion of the bolts.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined fire-resistant air duct comprises a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected to a fixed shell, the inner wall of the fixed shell is provided with a button, the inner wall of the fixed shell is slidably connected to a clamping rod, the outer wall of the clamping rod is slidably connected to the inner wall of the connecting sleeve, the outer wall of the clamping rod is slidably connected to a fixing plate, the inner wall of the fixing plate is provided with a clamping groove, the outer wall of the clamping rod is fixedly connected to a clamping ring, the outer wall of the clamping ring is slidably connected to the inner wall of the fixing shell, the outer wall of the clamping ring is fixedly connected to a spring, the other end of the spring is fixedly connected to the inner wall of the fixing shell, the lower surface of the button is slidably connected to the top of the clamping ring, the outer wall of the fixing plate is provided with an installation component, and the installation component is used for quickly installing the pipeline.

[0007] Preferably, the mounting assembly includes a support plate, an outer wall of the support plate is fixedly connected to the outer wall of the fixing plate, an inner wall of the support plate is provided with a first sliding groove, the inner wall of the support plate is slidably connected to a first sliding bar, and the outer wall of the first sliding bar is slidably connected to the inner wall of the first sliding groove.

[0008] Preferably, the outer wall of the first slide bar is fixedly connected with an A plate, the lower surface of the A plate is slidably connected to the bottom outer wall of the support plate, and the inner wall of the A plate is provided with a second slide groove.

[0009] Preferably, the inner wall of the second sliding groove is slidably connected to a pull rod, the outer wall of the pull rod is slidably connected to a B plate, and the inner wall of the B plate is rotatably connected to a handle.

[0010] Preferably, a ratchet is fixedly connected to the outer wall of the middle portion of the handle, a pawl is slidably connected to the outer wall of the ratchet, and the outer wall of the pawl is rotatably connected to the outer wall of the B plate.

[0011] Preferably, the rear outer wall of the handle is fixedly connected to a connecting plate, the outer wall of the connecting plate is rotatably connected to the inner wall of the B plate, and the inner wall of the connecting plate is fixedly connected to a first rotating shaft.

[0012] Preferably, the outer wall of the first rotating shaft is rotatably connected to a bent rod, the inner wall of the bent rod is fixedly connected to a second rotating shaft, and the outer wall of the second rotating shaft is rotatably connected to a pull plate.

[0013] Preferably, the rear outer wall of the pull plate is fixedly connected to a slider, the inner wall of the slider is slidably connected to a second slide bar, the outer wall of the second slide bar is fixedly connected to the inner wall of the B plate, and the outer wall of the pull rod is slidably connected to the inner wall of the B plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the clamping ring is driven to compress the spring by the clamping rod, and the fixing plate can be quickly fixed during use by clamping the clamping rod into the inner wall of the clamping groove. The clamping ring is driven to slide out from the inner wall of the fixing shell by pressing the button, which plays an effect of quickly installing and disassembling the support plate during use.

[0016] 2. In the utility model, the first slide bar and the A plate slide into the inner wall of the first slide groove, the B plate drives the pull rod to slide into the inner wall of the second slide groove, the handle drives the ratchet wheel to rotate the driving connecting plate to drive the first rotating shaft to rotate, and the first rotating shaft drives the crankshaft and the second rotating shaft to push or pull the pull plate between the slider and the second slide bar. The limiter tightens the A plates on both sides on the inner wall of the second slide groove through the pull rod to prevent high temperature from leaking from the inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a combined fire-resistant air duct proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of a connection sleeve of a combined fire-resistant air duct proposed by the utility model;

[0019] Figure 3A schematic diagram of a support plate of a combined fire-resistant air duct proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a connecting plate of a combined fire-resistant air duct.

[0021] Legend:

[0022] 1. Connecting sleeve; 2. Fixed shell; 3. Button; 4. Clamping rod; 5. Spring; 6. Clamping ring; 7. Fixed plate; 8. Clamping groove; 9. Support plate; 10. First slide groove; 11. First slide bar; 12. A plate; 13. Second slide groove; 14. B plate; 15. Handle; 16. Ratchet; 17. Paw; 18. Connecting plate; 19. First rotating shaft; 20. Bending rod; 21. Second rotating shaft; 22. Pull plate; 23. Pull rod; 24. Sliding block; 25. Second slide bar. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings of the specification 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 of 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] Reference Figure 1-Figure 3 The utility model provides an embodiment: a combined fire-resistant air duct, including a connecting sleeve 1, the outer wall of the connecting sleeve 1 is fixedly connected to a fixed shell 2, the inner wall of the fixed shell 2 is provided with a button 3, the inner wall of the fixed shell 2 is slidably connected to a clamping rod 4, the outer wall of the clamping rod 4 is slidably connected to the inner wall of the connecting sleeve 1, the outer wall of the clamping rod 4 is slidably connected to a fixed plate 7, the inner wall of the fixed plate 7 is provided with a clamping groove 8, the outer wall of the clamping rod 4 is fixedly connected to a clamping ring 6, the outer wall of the clamping ring 6 is slidably connected to the inner wall of the fixed shell 2, and the outer wall of the clamping ring 6 is fixedly connected to the inner wall of the fixed shell 2. A spring 5 is fixedly connected, the other end of the spring 5 is fixedly connected to the inner wall of the fixed shell 2, the lower surface of the button 3 is slidably connected to the top of the clamping ring 6, and the outer wall of the fixed plate 7 is provided with a mounting assembly, which is used to quickly install the pipeline; the mounting assembly includes a support plate 9, the outer wall of the support plate 9 is fixedly connected to the outer wall of the fixed plate 7, the inner wall of the support plate 9 is provided with a first slide groove 10, the inner wall of the support plate 9 is slidably connected to a first slide bar 11, and the outer wall of the first slide bar 11 is slidably connected to the inner wall of the first slide groove 10;

[0025] Specifically, by pressing the card rod 4 to slide on the inner wall of the fixed shell 2, the card rod 4 drives the snap ring 6 and the spring 5 to be compressed. When the snap ring 6 is stuck on the inner wall of the fixed shell 2, the card rod 4 is stuck in the card groove 8 and the inner wall of the fixed plate 7, which has the effect of quickly fixing, installing and disassembling the support plate 9. By pressing the button 3, the snap ring 6 is driven to slide out from the inner wall of the fixed shell 2, so that the snap ring 6 can be quickly disassembled. Finally, the spring 5 drives the snap ring 6 and the card rod 4 to pop out to the outside, which has the effect of quickly disassembling the support plate 9.

[0026] Reference Figure 3-Figure 4 The outer wall of the first slide bar 11 is fixedly connected to the A plate 12, the lower surface of the A plate 12 is slidably connected to the bottom outer wall of the support plate 9, and the inner wall of the A plate 12 is provided with a second slide groove 13; the inner wall of the second slide groove 13 is slidably connected to the pull rod 23, the outer wall of the pull rod 23 is slidably connected to the B plate 14, and the inner wall of the B plate 14 is rotatably connected to the handle 15; the middle outer wall of the handle 15 is fixedly connected to the ratchet 16, the outer wall of the ratchet 16 is slidably connected to the pawl 17, and the outer wall of the pawl 17 is rotatably connected to the outer wall of the B plate 14;

[0027] Specifically, the first slide bar 11 and the A plate 12 slide into the inner wall of the first slide groove 10, and the B plate 14 drives the pull rod 23 to slide into the inner wall of the second slide groove 13. The handle 15 drives the ratchet 16 to rotate and drive the connecting plate 18 to drive the first rotating shaft 19 to rotate. During use, the ratchet 16 can prevent the connecting plate 18 from rotating, thereby achieving a fixed self-locking effect during use.

[0028] Reference Figure 4 The outer wall of the rear part of the handle 15 is fixedly connected with a connecting plate 18, the outer wall of the connecting plate 18 is rotatably connected to the inner wall of the B plate 14, the inner wall of the connecting plate 18 is fixedly connected with a first rotating shaft 19; the outer wall of the first rotating shaft 19 is rotatably connected with a bent rod 20, the inner wall of the bent rod 20 is fixedly connected with a second rotating shaft 21, the outer wall of the second rotating shaft 21 is rotatably connected with a pulling plate 22; the outer wall of the rear side of the pulling plate 22 is fixedly connected with a slider 24, the inner wall of the slider 24 is slidably connected with a second sliding bar 25, the outer wall of the second sliding bar 25 is fixedly connected to the inner wall of the B plate 14, and the outer wall of the pulling rod 23 is slidably connected to the inner wall of the B plate 14;

[0029] Specifically, the first rotating shaft 19 drives the curved rod 20 and the second rotating shaft 21 to push or pull the pull plate 22 to limit the slider 24 and the second slide bar 25, and the pull rod 23 tightens the A plates 12 on both sides on the inner wall of the second slide groove 13 to prevent high temperature from leaking from the inside.

[0030] Working principle: when the fire-resistant air duct is needed, the clamping rod 4 is pressed to slide on the inner wall of the fixed shell 2, and the clamping ring 6 and the spring 5 are compressed by the clamping rod 4. At this time, when the clamping ring 6 is clamped on the inner wall of the fixed shell 2, the clamping rod 4 is fixed, and the clamping rod 4 is clamped into the inner wall of the clamping groove 8 and the fixed plate 7, which plays an effect of quickly fixing, installing and disassembling the support plate 9 during use. During use, the clamping ring 6 is driven to slide out from the inner wall of the fixed shell 2 by pressing the button 3, and the clamping ring 6 is quickly disassembled during use. Then, the clamping ring 6 and the clamping rod 4 are driven to pop out to the outside by the spring 5, and the support plate 9 is quickly disassembled during use. During use, the first slide bar 11 and the A plate 12 slide into the inner wall of the first slide groove 10, and the pull rod 23 is driven by the B plate 14 to slide into the inner wall of the second slide groove 13. The handle 15 drives the ratchet 16 to rotate and drive the connecting plate 18 to drive the first rotating shaft 19 to rotate. The first rotating shaft 19 drives the bent rod 20 and the second rotating shaft 21 to push or pull the pull plate 22 to limit the slider 24 and the second slide bar 25 through the pull rod 23 to tighten the A plates 12 on both sides on the inner wall of the second slide groove 13 to prevent high temperature from leaking from the inside. When the ratchet 17 slides out from the outer wall of the ratchet 16, it can quickly rotate during use, so that the second slide groove 13 can be quickly loosened by the pull rod 23 during use to remove and replace the B plate 14. During use, the fire-resistant air duct not only achieves the effect of driving the clamping ring 6 to slide out from the inner wall of the fixed shell 2 by pressing the button 3, and plays the effect of quickly installing and disassembling the support plate 9 during use, but also has the effect of the pull plate 22 on the slider 24 and the second slide bar 25. The limit of the pull plate 22 on the slider 24 and the second slide bar 25 tightens the A plates 12 on both sides on the inner wall of the second slide groove 13 through the pull rod 23 to prevent high temperature from leaking from the inside.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined fire-resistant air duct, characterized in that: The utility model comprises a connecting sleeve (1), wherein the outer wall of the connecting sleeve (1) is fixedly connected to a fixing shell (2), the inner wall of the fixing shell (2) is provided with a button (3), the inner wall of the fixing shell (2) is slidably connected to a clamping rod (4), the outer wall of the clamping rod (4) is slidably connected to the inner wall of the connecting sleeve (1), the outer wall of the clamping rod (4) is slidably connected to a fixing plate (7), the inner wall of the fixing plate (7) is provided with a clamping groove (8), the outer wall of the clamping rod (4) is fixedly connected to a clamping ring (6), the outer wall of the clamping ring (6) is slidably connected to the inner wall of the fixing shell (2), the outer wall of the clamping ring (6) is fixedly connected to a spring (5), the other end of the spring (5) is fixedly connected to the inner wall of the fixing shell (2), the lower surface of the button (3) is slidably connected to the top end of the clamping ring (6), and the outer wall of the fixing plate (7) is provided with an installation component, and the installation component is used for quickly installing the pipeline.

2. A combined fire-resistant air duct according to claim 1, characterized in that: The mounting assembly comprises a support plate (9), the outer wall of the support plate (9) is fixedly connected to the outer wall of the fixed plate (7), the inner wall of the support plate (9) is provided with a first slide groove (10), the inner wall of the support plate (9) is slidably connected to a first slide bar (11), and the outer wall of the first slide bar (11) is slidably connected to the inner wall of the first slide groove (10).

3. A combined fire-resistant air duct according to claim 2, characterized in that: The outer wall of the first slide bar (11) is fixedly connected to an A plate (12), the lower surface of the A plate (12) is slidably connected to the bottom outer wall of the support plate (9), and the inner wall of the A plate (12) is provided with a second slide groove (13).

4. The combined fire-resistant air duct according to claim 3, characterized in that: The inner wall of the second sliding groove (13) is slidably connected to a pull rod (23), the outer wall of the pull rod (23) is slidably connected to a B plate (14), and the inner wall of the B plate (14) is rotatably connected to a handle (15).

5. The combined fire-resistant air duct according to claim 4, characterized in that: The middle outer wall of the handle (15) is fixedly connected to a ratchet (16), the outer wall of the ratchet (16) is slidably connected to a pawl (17), and the outer wall of the pawl (17) is rotatably connected to the outer wall of the B plate (14).

6. The combined fire-resistant air duct according to claim 5, characterized in that: The rear outer wall of the handle (15) is fixedly connected to a connecting plate (18), the outer wall of the connecting plate (18) is rotatably connected to the inner wall of the B plate (14), and the inner wall of the connecting plate (18) is fixedly connected to a first rotating shaft (19).

7. The combined fire-resistant air duct according to claim 6, characterized in that: The outer wall of the first rotating shaft (19) is rotatably connected to a bent rod (20), the inner wall of the bent rod (20) is fixedly connected to a second rotating shaft (21), and the outer wall of the second rotating shaft (21) is rotatably connected to a pull plate (22).

8. The combined fire-resistant air duct according to claim 7, characterized in that: The rear outer wall of the pull plate (22) is fixedly connected to a slider (24), the inner wall of the slider (24) is slidably connected to a second slide bar (25), the outer wall of the second slide bar (25) is fixedly connected to the inner wall of the B plate (14), and the outer wall of the pull rod (23) is slidably connected to the inner wall of the B plate (14).

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