Novel fire-resistant and fireproof air pipe

Abstract

The utility model discloses a novel fire-resistant and fireproof air pipe, and relates to the technical field of smoke prevention and exhaust of buildings. The fire-resistant air duct comprises an air duct, a detachable fire-resistant mechanism is arranged on the circumferential surface of the air duct, the detachable fire-resistant mechanism comprises a hollow disc, the hollow disc is fixedly connected with the circumferential surface of the air duct, and the inner wall of the hollow disc is connected with a fire-resistant cylinder in a sliding mode. The sliding force of the sliding rod drives the hollow disc, the fireproof cylinder, the sliding groove, the connecting plate, the spring, the hollow pipe, the limiting block and other components to be matched with one another, so that when the fireproof cylinder moves upwards, the inner wall of the sliding groove formed in the circumferential surface of the fireproof cylinder extrudes the inclined surface of the limiting block, and when the limiting block is extruded, the sliding groove is prevented from falling off. The sliding rod sliding on the inner wall of the hollow pipe slides, so that the spring fixed to the inner wall of the hollow pipe is extruded to be in a tightened state, and when the fireproof layer needs to be replaced, workers can replace the fireproof layer conveniently.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building smoke exhaust technology field, especially, a kind of novel fireproof wind pipe. BACKGROUND

[0002] Traditional wind pipe is mostly made of ordinary steel or galvanized steel, and their fireproof performance is relatively poor. If a fire occurs, the wind pipe may deform and burn in a high-temperature environment, leading to rapid spread of the fire. In particular, in large commercial buildings, underground garages, industrial plants and other places, the ventilation duct may become a "channel" for the spread of fire, thereby exacerbating the spread speed and range of the fire and endangering personnel safety.

[0003] According to a kind of novel fireproof wind pipe (public number: CN214027508U) disclosed, a pipe body is provided, the pipe body is successively stacked from outside to inside with an outer metal layer, a microporous foaming material layer, an inorganic material layer and an inner metal layer, and a bonding layer is arranged between the inner metal layer and the inorganic material layer.

[0004] However, the fire resistance of the wind pipe greatly decreases after being subjected to a fire, and it is inconvenient for workers to replace the internal fire-retardant cotton, which needs to be improved. INVENTION CONTENTS

[0005] The utility model aims to provide a kind of novel fireproof wind pipe, which solves the existing problems through the design of detachable fireproof mechanism.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a kind of novel fireproof wind pipe, including wind pipe, the circumference of the wind pipe is provided with detachable fireproof mechanism, the detachable fireproof mechanism includes hollow disc, the hollow disc is fixedly connected with the circumference of wind pipe, the inner wall of the hollow disc is slidably connected with fireproof cylinder, the circumference of the fireproof cylinder is provided with sliding groove, the circumference of the hollow disc is fixedly connected with connecting plate, the inner side wall of the connecting plate is fixedly connected with hollow pipe, the inner wall of the hollow pipe is slidably connected with sliding rod, the inner wall of the wind pipe is fixedly connected with fire-retardant body, the circumference of the sliding rod is fixedly connected with limit block.

[0008] Further, the inner side wall of the hollow pipe is fixedly connected with spring, and the end of the spring away from the hollow pipe is fixedly connected to the circumference of the sliding rod, which is beneficial to the reset of the limit block.

[0009] Further, the side section of the limit block is triangular, and the limit block is slidably connected to the inner wall of the sliding groove, which is beneficial to the limiting of the fireproof cylinder.

[0010] Further, the circumferential surface of the fireproof cylinder is provided with an auxiliary operating mechanism, the auxiliary operating mechanism comprises a handle, and the handle is fixedly connected to the circumferential surface of the fireproof cylinder, and the design is beneficial to facilitate the operation of the staff.

[0011] Further, the circumferential surface of the hollow disc is fixedly connected with a pad, and the design is beneficial to facilitate the staff to use upward pulling force on the handle.

[0012] Further, the number of the pads is two, and the pads are arranged in a circumferential array on the circumferential surface of the hollow disc, and the side section of the handle is in an arc shape, and the design is beneficial to facilitate the operation of the staff.

[0013] Further, the side section of the connecting plate is in an L shape, and the design is beneficial to enhance the stability of the hollow tube.

[0014] The utility model discloses have the following beneficial effects:

[0015] The utility model discloses through the sliding force of sliding rod, drive hollow disc, fireproof cylinder, sliding slot, connecting plate, spring, hollow tube, limit block etc. assembly mutual cooperation, realized when fireproof cylinder upward movement, the inner wall of the sliding slot that sets up in the circumferential surface of fireproof cylinder, extrude the inclined surface of limit block, when limit block is extruded, the sliding rod that slides in the inner wall of hollow tube slides to extrude the spring fixed in the inner wall of hollow tube and be in the state of tightness, when needing to replace fireproof layer, facilitate staff to replace.

[0016] The utility model discloses through the pulling force of staff, drive handle, pad etc. assembly mutual cooperation, realized the pad that steps on fixed in the circumferential surface of hollow disc, hold the handle fixed in the circumferential surface of fireproof cylinder simultaneously, when pulling handle upward to the sliding fireproof cylinder in the hollow disc interior is pulled and moves upward, when replacing fireproof layer, facilitate staff operation.

[0017] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is a three-dimensional appearance schematic view of the utility model;

[0020] Figure 2The three-dimensional schematic view of the fireproof cylinder of the utility model is shown in the figure.

[0021] Figure 3 The three-dimensional display schematic view of the hollow pipe of the utility model is shown in the figure.

[0022] Figure 4 The three-dimensional display schematic view of the hollow disc of the utility model is shown in the figure.

[0023] Figure 5 The three-dimensional display schematic view of the handle of the utility model is shown in the figure.

[0024] In the drawings, the components represented by each reference numeral are listed as follows:

[0025] 1, air pipe; 2, detachable fireproof mechanism; 21, hollow disc; 22, fireproof cylinder; 23, sliding groove; 24, connecting plate; 25, hollow pipe; 26, spring; 27, sliding rod; 28, limiting block; 29, fire-retardant body; 3, auxiliary operating mechanism; 31, handle; 32, cushion block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model discloses a novel fireproof and fireproof air pipe which comprises an air pipe 1, a detachable fireproof mechanism 2 is arranged on the circumferential surface of the air pipe 1, the detachable fireproof mechanism 2 comprises a hollow disc 21, the hollow disc 21 is fixedly connected to the circumferential surface of the air pipe 1, a fireproof cylinder 22 is slidably connected to the inner wall of the hollow disc 21, a sliding groove 23 is formed in the circumferential surface of the fireproof cylinder 22, a connecting plate 24 is fixedly connected to the circumferential surface of the hollow disc 21, a hollow pipe 25 is fixedly connected to the inner side wall of the connecting plate 24, a fire-retardant body 29 is fixedly connected to the inner wall of the air pipe 1, and a limiting block 28 is fixedly connected to the circumferential surface of the sliding rod 27.

[0028] The inner side wall of the hollow pipe 25 is fixedly connected with a spring 26, and the end, away from the hollow pipe 25, of the spring 26 is fixedly connected to the circumferential surface of the sliding rod 27. The above design is beneficial to the resetting of the limiting block 28.

[0029] The side section of the limiting block 28 is triangular, and the limiting block 28 is slidably connected to the inner wall of the sliding groove 23. The above design is beneficial to the limiting of the fireproof cylinder 22.

[0030] The circumferential surface of the fireproof cylinder 22 is provided with an auxiliary operating mechanism 3, which comprises a handle 31 fixedly connected to the circumferential surface of the fireproof cylinder 22, which is beneficial to facilitate the operation of the staff.

[0031] The circumferential surface of the hollow disc 21 is fixedly connected with a pad 32, which is beneficial to facilitate the staff to use upward pulling force on the handle 31.

[0032] The number of the pad 32 is two, and is arranged in a circumferential array on the circumferential surface of the hollow disc 21, and the side section of the handle 31 is arc-shaped, which is beneficial to facilitate the operation of the staff.

[0033] The side section of the connecting plate 24 is L-shaped, which is beneficial to enhance the stability of the hollow tube 25.

[0034] One specific application of the embodiment is that: first, when the fireproof cylinder 22 needs to be replaced, the staff steps on the pad 32 fixed on the circumferential surface of the hollow disc 21, and holds the handle 31 fixed on the circumferential surface of the fireproof cylinder 22, at this time, the handle 31 is pulled upward, so that the fireproof cylinder 22 sliding in the hollow disc 21 is pulled upward, when the fireproof cylinder 22 moves upward, the inner wall of the sliding groove 23 opened on the circumferential surface of the fireproof cylinder 22 extrudes the inclined surface of the limiting block 28, when the limiting block 28 is extruded, the sliding rod 27 sliding in the inner wall of the hollow tube 25 slides, so that the spring 26 fixed in the inner wall of the hollow tube 25 is in a tight state, and at the same time drives the sliding rod 27 to slide to the inside of the hollow tube 25, when the sliding rod 27 slides, the limiting block 28 fixed on the circumferential surface moves to separate from the inner wall of the sliding groove 23, and finally the staff pulls out the fireproof cylinder 22 for replacement.

[0035] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A new type of fire resistant and fire proof air duct comprising an air duct (1) characterized in that: The circumferential surface of the air pipe (1) is provided with a detachable fireproof mechanism (2); The detachable fireproof mechanism (2) comprises a hollow disc (21) fixedly connected with the circumferential surface of the air pipe (1), an inner wall of the hollow disc (21) is slidably connected with a fireproof cylinder (22), the circumferential surface of the fireproof cylinder (22) is provided with a sliding groove (23), the circumferential surface of the hollow disc (21) is fixedly connected with a connecting plate (24), the inner side wall of the connecting plate (24) is fixedly connected with a hollow pipe (25), the inner wall of the hollow pipe (25) is slidably connected with a sliding rod (27), the inner wall of the air pipe (1) is fixedly connected with a fire-retardant body (29), and the circumferential surface of the sliding rod (27) is fixedly connected with a limiting block (28).

2. A novel fire resistant and fire proof ducting as claimed in claim 1, wherein, The inner side wall of the hollow pipe (25) is fixedly connected with a spring (26), and one end of the spring (26) away from the hollow pipe (25) is fixedly connected with the circumferential surface of the sliding rod (27).

3. A novel fire resistant and fire proof ducting as claimed in claim 2, wherein, The side section of the limiting block (28) is triangular, and the limiting block (28) is slidably connected with the inner wall of the sliding groove (23).

4. A novel fire resistant and fire proof ducting as claimed in claim 3, wherein, The circumferential surface of the fireproof cylinder (22) is provided with an auxiliary operation mechanism (3), the auxiliary operation mechanism (3) comprises a handle (31) fixedly connected with the circumferential surface of the fireproof cylinder (22).

5. A novel fire resistant and fire proof ducting as claimed in claim 4, wherein, The circumferential surface of the hollow disc (21) is fixedly connected with a pad (32).

6. A novel fire resistant and fire proof ducting as claimed in claim 5, wherein, The number of the pads (32) is two, and the pads (32) are arranged in an array along the circumferential surface of the hollow disc (21), and the side section of the handle (31) is arc-shaped.

7. A novel fire resistant and fire proof ducting as claimed in claim 6, wherein, The side section of the connecting plate (24) is L-shaped.

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