Exhaust pipeline access port cover body structure

Abstract

The utility model discloses a cover body structure of an exhaust pipeline access port, and relates to the technical field of flue gas conveying. The air exhaust device comprises an air exhaust pipeline, wherein a rectangular access hole is formed in the air exhaust pipeline; limiting rings are arranged on the peripheral side wall of the exhaust pipeline located at the two ends of the access hole, mounting rings are arranged on the peripheral side wall of the exhaust pipeline located between the two limiting rings in a matched mode, and at least two connecting rods are connected between the two mounting rings. Wherein one connecting rod is in threaded connection with at least one locking bolt, and the end portion of the locking bolt abuts against an arc-shaped cover plate which is arranged at the access hole in a matched and covering mode. According to the exhaust pipeline, the access hole is formed in the exhaust pipeline, and the arc-shaped cover plate is arranged at the access hole in a matched mode, so that when the interior of the exhaust pipeline needs to be cleaned or overhauled, the arc-shaped cover plate matched with the access hole is controlled to be moved away, and then the interior of the exhaust pipeline can be conveniently cleaned or overhauled at the moment.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke conveying, in particular to an exhaust pipe maintenance mask body structure. Background Art

[0002] In the process of production and life, it is usually necessary to discharge the gases generated by combustion in gas stoves, boilers, etc. Based on this, it is often necessary to install exhaust ducts along the building. After the flue system has been used for a long time, a large amount of oil stains, dust and other garbage will accumulate in the flue components. In addition, the flue components themselves may also have cracks or damage; therefore, the flue system needs to be maintained regularly or irregularly.

[0003] In existing flue systems, maintenance on the flue's inner wall requires lowering workers or tools from the top of the flue to the bottom using lifting equipment, a process that places high demands on the lifting equipment. Furthermore, the fire check valve must be removed from the flue for maintenance, which is inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust pipe inspection cover body structure, which solves the problems raised by the existing background technology by arranging an inspection port on the exhaust pipe and cooperating with an arc-shaped cover plate at the inspection port.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an exhaust duct inspection cover body structure, comprising an exhaust duct, wherein a rectangular inspection port is provided on the exhaust duct; limiting rings are provided on the outer peripheral side walls of the exhaust duct located at both ends of the inspection port, and a mounting ring is provided on the outer peripheral side wall of the exhaust duct located between the two limiting rings, and at least two connecting rods are connected between the two mounting rings; at least one locking bolt is threadedly connected to one of the connecting rods, and the end of the locking bolt rests on an arc-shaped cover plate that is provided on the inspection port in a matching cover; the inner side wall of the arc-shaped cover plate is provided with a sealing layer.

[0007] Furthermore, a guide column is provided on each of the four corner sides of the arc-shaped cover plate, and a guide block that cooperates with the guide column is provided on the inner wall of the mounting ring, and the guide column guides through the guide block.

[0008] Furthermore, the mounting rings on both sides of the arc-shaped cover plate are respectively provided with through holes, a cylinder is provided at the through holes, a control rod is provided through the bottom side surface of the cylinder, a convex ring is provided at the end of the control rod, and a spring is connected between the convex ring and the bottom side surface of the cylinder; the side of the limiting ring close to the mounting ring is provided with a socket for inserting the control rod.

[0009] Furthermore, the end of the control rod is provided with a spherical structure that slides along a side wall of the limiting ring.

[0010] The utility model has the following beneficial effects:

[0011] The utility model provides an inspection port on the exhaust duct, and a curved cover plate is provided at the inspection port. When the inside of the exhaust duct needs to be cleaned or inspected, the curved cover plate at the inspection port is controlled to be removed, thereby facilitating the cleaning or inspection of the inside of the exhaust duct.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic structural diagram of the cover structure of the utility model;

[0015] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0016] Figure 3 for Figure 1 Main view;

[0017] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0018] Figure 5 This is a schematic diagram of the matching structure of the cylinder and the control rod of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] See also Figure 1 、 3 -4, the utility model is an exhaust duct inspection cover body structure, including an exhaust duct 1 for flue gas discharge, in order to regularly clean and inspect the inside of the exhaust duct 1 when in use, a rectangular inspection port 10 is provided on the exhaust duct 1; at the same time, in order to facilitate the blocking of the inspection port 10 according to needs when in use, the present application sets a limiting ring 11 on the outer peripheral side wall of the exhaust duct 1 at both ends of the inspection port 10, and sets a corresponding outer peripheral side wall of the exhaust duct 1 between the two limiting rings 11. There are mounting rings 2, and at least two connecting rods 23 are connected between the two mounting rings 2; at least one locking bolt 231 is threadedly connected to one of the connecting rods 23, and the end of the locking bolt 231 is against a matching cover 20 provided at the inspection port 10; then, when the inside of the exhaust duct 1 needs to be cleaned and inspected, the locking bolt 231 is loosened until the inner side wall of the arc-shaped cover 20 is detached from the outer wall of the exhaust duct 1, and then the mounting ring 2 is rotated to remove the arc-shaped cover 20 from the inspection port 10.

[0022] In order to maintain the stability of the movement of the arc-shaped cover plate 20 during use, Figure 2 The four corner sides of the arc-shaped cover plate 20 provided in the application are each provided with a guide column 22 , and the inner wall of the mounting ring 2 is provided with a guide block 21 that cooperates with the guide column 22 , and the guide column 22 guides through the guide block 21 .

[0023] In order to control the sealing between the arc-shaped cover plate 20 and the outer wall of the exhaust pipe 1, a sealing layer is provided on the inner wall of the arc-shaped cover plate 20.

[0024] In combination with the above, when in use, it is convenient to control the rotation of the mounting ring 2 to the corresponding position to maintain the stability of the mounting ring 2 to prevent it from continuing to rotate around the outer wall of the exhaust pipe 1. Figure 5 Through holes are respectively provided on the mounting rings 2 on both sides of the arc-shaped cover plate 20, and a cylinder 25 is provided at the through holes. A control rod 26 is provided through the bottom side of the cylinder 25, and a convex ring 261 is provided at the end of the control rod 26. A spring 251 is connected between the convex ring 261 and the bottom side of the cylinder 25; a socket for inserting the control rod 26 is provided on the side of the limiting ring 11 close to the mounting ring 2; and when in use, the control rod 26 is inserted into the socket to fix the position of the mounting ring 2.

[0025] The end of the control rod 26 is provided with a spherical structure 262 that slides along a side wall of the limiting ring 11 .

[0026] It can be known that the exhaust duct 1 can be installed vertically, horizontally or inclined when in use.

[0027] When the exhaust pipe 1 is installed vertically or obliquely, a plurality of balls are embedded on one side of the installation ring 2 close to the limiting ring 11 , and an annular groove cooperating with the balls is provided on the limiting ring 11 .

[0028] When the exhaust pipe 1 is installed horizontally, balls that slide along the outer wall of the exhaust pipe 1 are provided on the inner peripheral side wall of the mounting ring 2 , and an annular groove that cooperates with the balls is provided on the outer wall of the exhaust pipe 1 .

[0029] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An exhaust duct inspection cover body structure, characterized by: It comprises an exhaust pipe (1), wherein the exhaust pipe (1) is provided with a rectangular inspection opening (10); The outer peripheral side walls of the exhaust pipe (1) at both ends of the inspection port (10) are provided with limiting rings (11), the outer peripheral side wall of the exhaust pipe (1) between the two limiting rings (11) is cooperatively provided with a mounting ring (2), and at least two connecting rods (23) are connected between the two mounting rings (2); At least one locking bolt (231) is threadedly connected to one of the connecting rods (23), and the end of the locking bolt (231) abuts against an arc-shaped cover plate (20) provided at the inspection port (10) in a matching manner; A guide column (22) is provided on each of the four corner sides of the arc-shaped cover plate (20), and a guide block (21) that cooperates with the guide column (22) is provided on the inner wall of the mounting ring (2), and the guide column (22) guides through the guide block (21); The inner side wall of the arc-shaped cover plate (20) is provided with a sealing layer.

2. The exhaust duct inspection cover structure according to claim 1, characterized in that: The mounting rings (2) on both sides of the arc-shaped cover plate (20) are respectively provided with through holes, a cylinder (25) is provided at the through holes, a control rod (26) is provided through the bottom side of the cylinder (25), a convex ring (261) is provided at the end of the control rod (26), and a spring (251) is connected between the convex ring (261) and the bottom side of the cylinder (25); a jack for inserting the control rod (26) is provided on the side of the limiting ring (11) close to the mounting ring (2).

3. The exhaust duct inspection cover structure according to claim 2, characterized in that: The end of the control rod (26) is provided with a spherical structure (262) that slides along a side wall of the limiting ring (11).

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