High-temperature-resistant telescopic pipeline

Abstract

The utility model discloses a high temperature resistant telescopic pipeline, relates to the pipeline field, including inner pipe and outer pipe, the outer pipe is slidingly installed in the outer side of inner pipe, the outer side of inner pipe is sleeved with the fixed sleeve, the outer sides of both ends of the fixed sleeve are both fixedly provided with the fixed plate, and the two fixed plates are arranged opposite to each other. Through holes are formed in the fixing plate, the same bolt is inserted into the two through holes, a nut is arranged on the bolt, and a sealing gasket is arranged on the inner side of the fixing sleeve. The inner pipe and the outer pipe can be stably fixed together through the fixing sleeve, stability is high, when oil smoke passes through, the inner pipe and the outer pipe cannot be subjected to relative telescopic change, and the oil smoke can be prevented from entering the inner pipe and the outer pipe. And the sealing gaskets are tightly attached to the circular convex edges of the inner pipe and the outer pipe, so that the sealing performance of the inner pipe and the outer pipe can be enhanced, oil smoke in the pipeline can be prevented from leaking, sound in the oil smoke pipeline can be isolated, and sound insulation and noise reduction can be further achieved.

Description

Technical Field

[0001] The utility model relates to the field of pipelines, in particular to a high-temperature resistant telescopic pipeline. Background Art

[0002] A range hood is an electrical appliance used in the kitchen to remove the fumes generated during cooking. When the range hood is used, a pipe is needed to discharge the fumes outdoors or into a dedicated smoke duct in a high-rise building. The length of the pipe required for installing the range hood varies depending on the location. Sometimes one pipe is not enough, and two pipes are too long. Therefore, a retractable pipe has emerged. The patent application publication number CN107726403A discloses a retractable and high-temperature resistant pipe structure, including a retractable pipe body for conveying oily waste gas and a suspension device for suspending the pipe body on the roof of a house. Flanges for sealing and connecting are provided at the openings at both ends of the pipe body. This pipe structure can be freely retracted, but when fumes enter the pipe, the pipe structure will be retracted and expanded due to the impact and heat of the fumes, which will cause the pipe to shake and produce noise. Therefore, it is necessary to propose a high-temperature resistant retractable pipe to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a high temperature resistant retractable pipe to solve the problem that when oil smoke enters the pipe, the pipe will be retracted and expanded due to the impact force and heat of the oil smoke, thereby causing the pipe to shake and generate noise.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-temperature resistant telescopic pipe, comprising an inner tube and an outer tube, the outer tube being slidably mounted on the outside of the inner tube, the outer side of the inner tube being sleeved with a fixing sleeve, the outer sides of both ends of the fixing sleeve being fixedly mounted with fixing plates, and the two fixing plates being arranged opposite to each other, the fixing plates being provided with through holes, the same bolt being inserted into the two through holes, a nut being provided on the bolt, and a sealing gasket being provided on the inner side of the fixing sleeve.

[0005] Preferably, heat-resistant bellows are provided inside the inner tube and the outer tube, both ends of the heat-resistant bellows are fixedly connected to the inner wall of the outer tube, and the middle part of the heat-resistant bellows is fixedly connected to the inner wall of the inner tube.

[0006] Preferably, an annular slide groove is provided in the outer tube, and an outer ring layer is provided at the end of the inner tube, and the outer ring layer is slidably installed in the annular slide groove.

[0007] Preferably, the outer tube is sleeved on one end of the inner tube and is provided with a circular convex edge, and the circular convex edge is cooperated with the fixing sleeve.

[0008] Preferably, two outer tubes are provided, and the two outer tubes are slidably mounted on both ends of the inner tube.

[0009] Technical effects and advantages of the utility model:

[0010] 1. The fixing sleeve is arranged on the inner tube, so that half of the fixing sleeve is fixed on the circular convex edge of the outer tube, and the other half is sleeved on the inner tube. The nut on the bolt is turned to make the two ends of the fixing sleeve close to each other. At this time, the fixing sleeve can stably fix the inner tube and the outer tube together, with high stability. When oil smoke passes through, the inner tube and the outer tube will not have relative expansion and contraction changes, and will not shake, so there will be no noise;

[0011] 2. When the fixing sleeve stably fixes the inner tube and the outer tube together, the sealing gasket is tightly attached to the circular convex edges of the inner tube and the outer tube, which can enhance the sealing of the inner tube and the outer tube, prevent the leakage of oil smoke in the pipe, and isolate the sound in the oil smoke pipe, which can further soundproof and reduce noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the high temperature resistant retractable pipeline structure of the utility model.

[0013] Figure 2 This is the front view of the high temperature resistant retractable pipeline of the utility model.

[0014] Figure 3 This is a cross-sectional view of the high-temperature resistant retractable pipeline of the utility model.

[0015] In the figure: 1. inner tube; 2. outer tube; 3. fixing sleeve; 4. fixing plate; 5. through hole; 6. bolt; 7. nut; 8. sealing gasket; 9. heat-resistant bellows. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-Figure 3 A high-temperature resistant telescopic pipe is shown, comprising an inner tube 1 and an outer tube 2. The outer tube 2 is slidably installed on the outside of the inner tube 1. An annular groove is provided in the outer tube 2. An outer ring layer is provided at the end of the inner tube 1. The outer ring layer is slidably installed in the annular groove. Both the outer tube 2 and the inner tube 1 are made of high-temperature resistant materials and have a certain strength. They will not be easily deformed due to external pressure. This type of setting is a conventional setting, so it will not be described in detail.

[0018] In order to solve the problem that when oil smoke enters the pipeline, the pipeline will expand and contract due to the impact force and heat of the oil smoke, which will cause the pipeline to shake and produce noise, the utility model is provided with a fixing sleeve 3 on the outer side of the inner tube 1, and fixing plates 4 are fixedly installed on the outer sides of both ends of the fixing sleeve 3, and the two fixing plates 4 are arranged opposite to each other. A through hole 5 is opened on the fixing plate 4, and the same bolt 6 is inserted in the two through holes 5. Nuts 7 are arranged on the bolts 6, and a sealing gasket 8 is arranged on the inner side of the fixing sleeve 3. The outer tube 2 is sleeved on one end of the inner tube 1 and is provided with a circular convex edge, which is matched with the fixing sleeve 3. When working, after one end of the pipeline is connected to the range hood, the other end extends out of the kitchen. If the length is short and cannot extend to the outside of the kitchen, the two outer tubes 2 are pulled toward the two ends of the inner tube 1, and then The fixing sleeve 3 is sleeved on the inner tube 1 so that half of the fixing sleeve 3 is fixed on the circular convex edge of the outer tube 2, and the other half is sleeved on the inner tube 1. The nut 7 on the bolt 6 is turned to make the two ends of the fixing sleeve 3 close to each other. At this time, the fixing sleeve 3 can stably fix the inner tube 1 and the outer tube 2 together, and the stability is high. When oil smoke passes through, the inner tube 1 and the outer tube 2 will not have relative expansion and contraction changes, and will not shake, so there will be no noise. The sealing gasket 8 is on the inner side of the fixing sleeve 3. When the fixing sleeve 3 stably fixes the inner tube 1 and the outer tube 2 together, the sealing gasket 8 is tightly attached to the circular convex edge position of the inner tube 1 and the outer tube 2, which can enhance the sealing of the inner tube 1 and the outer tube 2, avoid oil smoke leakage in the pipeline, and isolate the sound in the oil smoke pipeline, which can further soundproof and reduce noise.

[0019] Heat-resistant bellows 9 are arranged inside the inner tube 1 and the outer tube 2. The two ends of the heat-resistant bellows 9 are fixedly connected to the inner wall of the outer tube 2, and the middle part of the heat-resistant bellows 9 is fixedly connected to the inner wall of the inner tube 1. The heat-resistant bellows 9 can be freely extended and retracted, so when the inner tube 1 and the outer tube 2 move relative to each other, they can follow the movement, and the heat-resistant bellows 9 can insulate heat. This setting belongs to a conventional setting, so it will not be repeated. There are two outer tubes 2, and the two outer tubes 2 are slidably installed at the two ends of the inner tube 1.

Claims

1. A high temperature resistant telescopic pipe, comprising an inner pipe (1) and an outer pipe (2), characterized in that: The outer tube (2) is slidably mounted on the outer side of the inner tube (1); a fixing sleeve (3) is sleeved on the outer side of the inner tube (1); fixing plates (4) are fixedly mounted on the outer sides of both ends of the fixing sleeve (3); and the two fixing plates (4) are arranged opposite to each other; a through hole (5) is opened on the fixing plate (4); the same bolt (6) is inserted into the two through holes (5); a nut (7) is arranged on the bolt (6); and a sealing gasket (8) is arranged on the inner side of the fixing sleeve (3).

2. A high temperature resistant telescopic pipeline according to claim 1, characterized in that: A heat-resistant bellows (9) is arranged inside the inner tube (1) and the outer tube (2); both ends of the heat-resistant bellows (9) are fixedly connected to the inner wall of the outer tube (2); and the middle part of the heat-resistant bellows (9) is fixedly connected to the inner wall of the inner tube (1).

3. The high temperature resistant telescopic pipeline according to claim 1, characterized in that: An annular sliding groove is provided in the outer tube (2), and an outer ring layer is provided at the end of the inner tube (1), and the outer ring layer is slidably installed in the annular sliding groove.

4. The high temperature resistant telescopic pipeline according to claim 1, characterized in that: The outer tube (2) is sleeved on one end of the inner tube (1) and is provided with a circular convex edge, and the circular convex edge is provided in cooperation with the fixing sleeve (3).

5. The high temperature resistant telescopic pipeline according to claim 1, characterized in that: Two outer tubes (2) are provided, and the two outer tubes (2) are slidably mounted on the two ends of the inner tube (1).

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