Air pipe heat preservation structure

Abstract

The utility model discloses an air pipe heat preservation structure which comprises an inner layer heat preservation mechanism installed on the outer side of an air pipe body, a connecting frame arranged on the outer side of the air pipe body in a combined and sleeved mode, a limiting frame installed on the outer side of the connecting frame, and an inner heat preservation cotton piece with the two ends inserted between the connecting frame and the limiting frame. An elastic sheet is arranged on the inner side wall, facing the connecting frame, of the limiting frame; the outer layer heat preservation mechanism comprises a limiting plate with the two ends connected with the limiting frame respectively, outer heat preservation cotton penetrating through the limiting plate and a clamping plate installed on the outer side of the limiting plate, and elastic pressing plates are arranged at the two ends of the clamping plate; a heat preservation cotton structure wrapping the outer side of the air pipe has the design of replacing a certain damaged part, the end of an inner heat preservation cotton piece is inserted between a connecting frame and a limiting frame, an elastic piece presses the inner heat preservation cotton piece, the inner heat preservation cotton piece is assembled on the outer side of an air pipe body, and a clamping plate clamps the side of outer heat preservation cotton bypassing the air pipe body by a circle. The outer heat preservation cotton piece and the inner heat preservation cotton piece separately wrap the outer side of the air pipe body, and damaged parts are convenient to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of air duct insulation devices, and in particular relates to an air duct insulation structure. Background Art

[0002] The air duct is a piping system used for air delivery and distribution. In order to ensure the normal operation of the air duct system, the air duct insulation is required. The main purpose is to reduce heat loss, improve energy efficiency, and protect the normal operation of the air duct in harsh environments. Commonly used insulation materials include glass wool, rock wool, polyurethane foam, polystyrene board, etc.

[0003] When some thermal insulation cotton materials are used for air duct insulation, they are generally wrapped around the outside of the air duct. However, under long-term use, the thermal insulation cotton will be damaged, aged or fall off. The thermal insulation cotton is generally set as a whole on the outside of the air duct, or wrapped as a whole. The thermal insulation cotton wrapped around the outside of the air duct is inconvenient to replace a damaged part. When the wrapped thermal insulation cotton structure is used on the outside of the air duct, there is a problem of no design for replacing a damaged part. For this reason, the present application proposes an air duct insulation structure. Utility Model Content

[0004] The utility model aims to provide an air duct insulation structure to solve the problem of the insulation cotton structure wrapped around the outside of the air duct proposed in the above background technology, which has no design for replacing a damaged part.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a duct insulation structure, comprising

[0006] The inner layer heat preservation mechanism installed on the outside of the air duct body comprises a connection frame assembled and sleeved on the outside of the air duct body, a limit frame installed on the outside of the connection frame, and inner heat preservation cotton sheets with two ends inserted between the connection frame and the limit frame, wherein the limit frame is provided with a spring sheet on the inner side wall facing the connection frame;

[0007] The outer layer insulation mechanism includes a limit plate whose two ends are respectively connected to the limit frame, an outer insulation cotton penetrating the limit plate, and a clamping plate installed on the outer side of the limit plate. Both ends of the clamping plate are provided with a spring pressure plate, and one end of the spring pressure plate is provided with a pull rod.

[0008] Preferably, the connection frame comprises diagonally distributed "L"-shaped bonding plates, and a concave groove is formed on the surface of the bonding plate.

[0009] Preferably, the spring sheet is provided with a protrusion of a semi-ellipsoidal structure which fits with the groove clearance.

[0010] Preferably, a long hole for the external thermal insulation cotton to pass through is opened at the center position of the limiting plate, and the top surface of the limiting plate is curved.

[0011] Preferably, the clamping plate comprises a clamping portion at a central position and right-angle portions at both ends, the clamping portion is curved, and the clamping portion is consistent with the top surface of the limiting plate.

[0012] Preferably, one end of the spring pressure plate is bent and connected to the right-angle portion, the spring pressure plate is matched with the side surface of the limiting plate, and the pull rod in an inclined state passes through one end of the right-angle portion and is connected to the spring pressure plate.

[0013] Preferably, a circular groove is provided on the side surface of the limiting plate, and a protrusion which cooperates with the clearance of the circular groove is provided on the elastic pressure plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, the thermal insulation cotton structure wrapped around the outside of the air duct is designed to replace a damaged part. The two ends of the inner thermal insulation cotton piece are inserted between the connecting frame and the limiting frame, the spring sheet presses the inner thermal insulation cotton piece, and the inner thermal insulation cotton piece is assembled on the outside of the air duct body. The splint clamps the edge of the outer thermal insulation cotton that goes around the air duct body. The outer thermal insulation cotton and the inner thermal insulation cotton piece are separately wrapped around the outside of the air duct body, which is convenient for replacing the damaged part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the splint of the utility model;

[0018] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 4 It is a side structural schematic diagram of the connection frame of the utility model;

[0020] In the figure: 1, air duct body; 2, connecting frame; 3, limiting frame; 4, limiting plate; 5, clamping plate; 6, external thermal insulation cotton; 7, internal thermal insulation cotton sheet; 21, groove; 31, spring piece; 51, spring pressure plate; 311, protrusion; 511, pull rod; 512, bump. DETAILED DESCRIPTION

[0021] 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. Example

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a duct insulation structure, including an inner insulation mechanism installed on the outside of the duct body 1, including a connection frame 2 assembled and sleeved on the outside of the duct body 1, a limit frame 3 installed on the outside of the connection frame 2, and an inner insulation cotton sheet 7 with two ends inserted between the connection frame 2 and the limit frame 3. The connection frame 2 is assembled on the outside of the duct body 1 by a conventional method, and the two ends of the inner insulation cotton sheet 7 are respectively inserted between the connection frame 2 and the limit frame 3. The limit frame 3 is provided with a spring sheet 31 on the inner side wall facing the connection frame 2, and the spring sheet 31 presses one side of the inner insulation cotton sheet 7 inserted between the connection frame 2 and the limit frame 3. The inner insulation cotton sheet 7 wraps the outer surface of the duct body 1. Side; the outer insulation mechanism includes a limiting plate 4 connected to the limiting frame 3 at both ends, an outer insulation cotton 6 that penetrates the limiting plate 4, and a plywood 5 installed on the outside of the limiting plate 4. The limiting plate 4 and the limiting frame 3 are combined by a conventional method. The outer insulation cotton 6 bypasses the outside of the air duct body 1. The outer insulation cotton 6 covers the inner insulation cotton piece 7 to form a double-layer insulation design. The plywood 5 presses the side of the outer insulation cotton 6 that bypasses the air duct body 1 to make it in a firm state. Spring-pressure plates 51 are provided at both ends of the plywood 5, and a pull rod 511 is provided at one end of the spring-pressure plate 51. The limiting plate 4 is a hollow rectangular column structure. The spring-pressure plate 51 is tightly attached to the limiting plate 4 to prevent the plywood 5 from loosening.

[0023] In this embodiment, the connecting frame 2 includes a diagonally distributed "L"-shaped bonding plate, on the surface of which an inward-concave groove 21 is provided, and the spring sheet 31 is provided with a protrusion 311 of a semi-ellipsoidal structure that fits with the groove 21 in a clearance. The spring sheet 31 presses the inner thermal insulation cotton sheet 7, and the protrusion 311 supports the inner thermal insulation cotton sheet 7, further pressing against the side of the inner thermal insulation cotton sheet 7 to prevent it from loosening.

[0024] In this embodiment, a long hole is opened at the center position of the limiting plate 4 for the external thermal insulation cotton 6 to pass through, which is convenient for the external thermal insulation cotton 6 to pass through. The top surface of the limiting plate 4 is curved, and the clamping plate 5 includes a clamping portion at the center position and right-angle portions at both ends. The clamping portion is curved, and the clamping portion is consistent with the top surface of the limiting plate 4. The clamping plate 5 clamps the side of the external thermal insulation cotton 6 that passes around the air duct body 1, so that it is in a firm state.

[0025] In this embodiment, one end of the spring-pressure plate 51 is bent and connected to the right-angle portion, the spring-pressure plate 51 is consistent with the side of the limiting plate 4, and the pull rod 511 in an inclined state passes through one end of the right-angle portion and is connected to the spring-pressure plate 51. The spring-pressure plate 51 is made of spring steel material and has elasticity. The spring-pressure plate 51 is tightly attached to the side of the limiting plate 4 to prevent the clamping plate 5 from loosening. A circular groove is opened on the side of the limiting plate 4, and a protrusion 512 that matches the gap of the circular groove is provided on the spring-pressure plate 51. The protrusion 512 is embedded in the inside of the side of the limiting plate 4 so that the protrusion 512 is limited, thereby further stabilizing the installation of the clamping plate 5.

[0026] The working principle and use process of this utility model:

[0027] When the duct body 1 is insulated, the connection frame 2 is assembled on the outer surface of the duct body 1 by conventional means, the limiting frame 3 and the connection frame 2 are of the same combined structure, and the limiting frame 3 is assembled and sleeved on the outer side of the connection frame 2;

[0028] Insert the two ends of the inner thermal insulation cotton sheet 7 between the connecting frame 2 and the limiting frame 3, the spring sheet 31 presses the inner thermal insulation cotton sheet 7, and the protrusion 311 presses the inner thermal insulation cotton sheet 7, further pressing the side of the inner thermal insulation cotton sheet 7 to prevent it from loosening. The inner thermal insulation cotton sheet 7 is assembled on the outside of the air duct body 1, which is convenient for replacing the damaged part;

[0029] The limiting plate 4 is connected to the limiting frame 3, one side of the external thermal insulation cotton 6 passes through the limiting plate 4, and the other side passes around the outside of the air duct body 1 and is attached to the surface of the limiting plate 4, and the external thermal insulation cotton 6 covers the internal thermal insulation cotton sheet 7 to form a double-layer thermal insulation design;

[0030] The clamping plate 5 is installed on the outside of the limiting plate 4, and the clamping plate 5 clamps the side of the outer thermal insulation cotton 6 that has passed through the air duct body 1, so that it is in a firm state. The protrusion 512 is embedded in the inner side of the limiting plate 4, so that the protrusion 512 is limited, and the installation of the clamping plate 5 is further stabilized. The outer thermal insulation cotton 6 is covered on the outside of the air duct body 1, which is convenient for replacing the damaged outer thermal insulation cotton 6;

[0031] To sum up: the thermal insulation cotton structure wrapped around the outside of the air duct is designed to replace a damaged part. The two ends of the inner thermal insulation cotton sheet 7 are inserted between the connecting frame 2 and the limit frame 3. The spring piece 31 presses the inner thermal insulation cotton sheet 7. The inner thermal insulation cotton sheet 7 is assembled on the outside of the air duct body 1. The clamping plate 5 clamps the side of the outer thermal insulation cotton 6 that bypasses the air duct body 1. The outer thermal insulation cotton 6 and the inner thermal insulation cotton sheet 7 are separately wrapped on the outside of the air duct body 1, which is convenient for replacing the damaged part.

[0032] Although the embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A duct insulation structure, characterized in that: include An inner thermal insulation mechanism installed on the outside of the air duct body (1), comprising a connection frame (2) assembled and sleeved on the outside of the air duct body (1), a limit frame (3) installed on the outside of the connection frame (2), and an inner thermal insulation cotton sheet (7) with two ends inserted between the connection frame (2) and the limit frame (3), wherein the inner side wall of the limit frame (3) facing the connection frame (2) is provided with a spring sheet (31); The outer layer heat-insulating mechanism comprises a limit plate (4) whose two ends are respectively connected to the limit frame (3), an outer heat-insulating cotton (6) penetrating the limit plate (4), and a clamping plate (5) installed on the outer side of the limit plate (4), wherein spring-pressing plates (51) are provided at both ends of the clamping plate (5), and a pull rod (511) is provided at one end of the spring-pressing plate (51).

2. The air duct insulation structure according to claim 1, characterized in that: The connection frame (2) comprises a diagonally distributed "L"-shaped bonding plate, and a concave groove (21) is provided on the surface of the bonding plate.

3. The air duct insulation structure according to claim 2, characterized in that: The spring sheet (31) is provided with a protrusion (311) of a semi-ellipsoidal structure which is clearance-matched with the groove (21).

4. The air duct insulation structure according to claim 1, characterized in that: A long hole for the external thermal insulation cotton (6) to pass through is provided at the center of the limiting plate (4), and the top surface of the limiting plate (4) is in a curved shape.

5. The air duct insulation structure according to claim 1, characterized in that: The clamping plate (5) comprises a clamping portion at a central position and right-angle portions at two end positions, the clamping portion is in a curved shape, and the clamping portion is consistent with the top surface of the limiting plate (4).

6. The air duct insulation structure according to claim 5, characterized in that: One end of the spring-pressing plate (51) is bent and connected to the right-angle portion, the spring-pressing plate (51) is aligned with the side surface of the limiting plate (4), and the pull rod (511) in an inclined state passes through one end of the right-angle portion and is connected to the spring-pressing plate (51).

7. The air duct insulation structure according to claim 1, characterized in that: A circular groove is provided on the side surface of the limiting plate (4), and a protrusion (512) which cooperates with the clearance of the circular groove is provided on the elastic pressure plate (51).

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