Embedded fixing part assembling air pipe

Abstract

The utility model provides an embedded fixing part assembly air pipe which comprises a first fireproof plate, a second fireproof plate, a U-groove type fixing strip, an L-shaped keel, a flange and a screw. The two second fireproof plates and the two first fireproof plates are vertically spliced to form a square pipe body structure; u-groove-type fixing strips are embedded in the end faces of the periphery of the first fireproof plate, the inner side walls of the U-groove-type fixing strips are embedded into the first fireproof plate, and the outer side walls of the U-groove-type fixing strips are tightly attached to the inner wall face of the first fireproof plate. U-groove-type fixing strips are embedded in the two end faces of the second fireproof plate in the short edge direction, the inner side walls of the U-groove-type fixing strips are embedded into the second fireproof plate, and the outer side walls of the U-groove-type fixing strips are tightly attached to the inner wall face of the second fireproof plate. L-shaped keels are arranged at the four edges of the square pipe body structure and fixed to the inner side walls of the U-groove type fixing strips of the corresponding edges through screws. The two flanges are arranged at the two ends of the square pipe body structure respectively, and the flanges are fixed to the inner side walls of the U-groove type fixing strips at the corresponding ends through screws. The embedded fixing piece assembly air pipe is firm in structure and good in sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a duct technology field, concretely relates to a pre -buried fixing piece assembly duct. BACKGROUND

[0002] At present, square ducts are usually installed by fireproof plates, L-shaped keels, flanges and screws. The flanges are directly fixed and installed with the fireproof plates by screws, the screws need to pass through the flanges and penetrate the fireproof plates, so that the inner surface of the fireproof plates has protruding screw tips. There is a gap between the screws and the fireproof plates. Thus, there is insufficient structural strength, poor sealing performance and air leakage risks. SUMMARY

[0003] In view of the above, the utility model provides a pre -buried fixing piece assembly duct, which has the advantages of firm structure, good sealing performance and convenient installation.

[0004] The technical scheme of the utility model:

[0005] The utility model provides a pre -buried fixing piece assembly duct, which comprises a first fireproof plate, a second fireproof plate, a U -groove type fixed strip, an L -shaped keel, a flange and a screw.

[0006] Two first fireproof plates are arranged in parallel, and two second fireproof plates are arranged in parallel between the two first fireproof plates and are vertically spliced to form a square pipe body structure.

[0007] The four peripheral end faces of the first fireproof plate are embedded with U -groove type fixed strips, the inner side wall of the U -groove type fixed strip is embedded into the first fireproof plate, and the outer side wall is tightly attached to the inner wall surface of the first fireproof plate.

[0008] The two end faces of the second fireproof plate in the short edge direction are embedded with U -groove type fixed strips, the inner side wall of the U -groove type fixed strip is embedded into the second fireproof plate, and the outer side wall is tightly attached to the inner wall surface of the second fireproof plate.

[0009] The four edges of the square pipe body structure are provided with L-shaped keels, and the L-shaped keels are fixed on the inner side wall of the U-groove type fixed strip of the corresponding edge by screws.

[0010] Two flanges are arranged at the two ends of the square pipe body structure, and the flanges are fixed on the inner side wall of the U-groove type fixed strip of the corresponding end by screws.

[0011] Further, the U-groove type fixed strip comprises mutually perpendicular inner side wall, outer side wall and connecting wall, and the inner side wall and the outer side wall are integrally connected by the connecting wall.

[0012] Further, the height of the inner side wall is greater than the height of the outer side wall, and the spacing between the inner side wall and the outer side wall is less than the thickness of the fireproof plate.

[0013] Further, the first fireproof plate and the second fireproof plate each comprise a fireproof material layer and a metal layer compounded on both sides thereof.

[0014] Further, the fireproof material layer adopts a fireproof gypsum board or a calcium silicate board, and the metal layer adopts a galvanized steel plate or a stainless steel plate.

[0015] Further, the L-shaped keel is an angle steel.

[0016] Further, the flange is welded into a square frame by an angle steel, and the square frame is provided with a connecting hole.

[0017] Further, the joint between the first fireproof plate and the second fireproof plate is filled with fireproof sealant.

[0018] Further, a gasket is arranged between the screw nut and the L-shaped keel or the flange.

[0019] Further, the U-shaped groove type fixing strip is formed by bending a metal plate.

[0020] The pre-embedded fixing member assembly air pipe provided by the application realizes the significant improvement of the structural stability, the convenient connection and the fireproof performance through the cooperative design of each component, and has the following beneficial effects.

[0021] One, the high-strength modular structure design improves the overall rigidity

[0022] The two first fireproof plates arranged in parallel and the two second fireproof plates are vertically spliced to form a square pipe body structure, and a stable mechanical support frame is constructed through the symmetrical arrangement. The U-shaped groove type fixing strip embedded on the four peripheral end surfaces of the first fireproof plate and the short edge end surfaces of the second fireproof plate has one side wall embedded into the plate body to form an embedded connection, and the other side wall closely adheres to the inner wall surface of the plate body, so that the U-shaped groove type fixing strip and the fireproof plate form a rigid whole, effectively enhancing the shear resistance and bending strength of the plate body edge, and avoiding the problem that the edge of the traditional air pipe is easily damaged.

[0023] The L-shaped keel arranged at the four edges of the square pipe body is fixedly connected with the U-shaped groove type fixing strip of the corresponding edge through a screw, and the two straight angle edges of the L-shaped keel are respectively attached to the U-shaped groove type fixing strips of the adjacent two fireproof plates to form a three-dimensional support structure for the edge angle of the pipe body. This design converts the planar stress of the traditional air pipe into a three-dimensional support stress, so that the external extrusion deformation resistance of the pipe body is improved by more than 30%.

[0024] Two, the fireproof sealing performance is enhanced

[0025] The flanges at both ends of the pipe body are directly fixed to the U-shaped groove fixing strip through screws, the U-shaped groove fixing strip serves as an intermediate connecting component and provides a flat and stable mounting base for the flanges, and the screws are uniformly distributed and fixed, the screws are screwed to one side wall embedded in the fireproof plate on the U-shaped groove fixing strip, the screws do not penetrate the fireproof plate, the sealing property of the screw connection is improved, and the air leakage hidden danger in the operation of the ventilation system is effectively reduced.

[0026] III. Easy to install

[0027] During installation, the U-shaped groove fixing strip only needs to be knocked into the end face of the fireproof plate, and then the screws are passed through the L-shaped keel or the flanges, so that the fixing is realized, and the advantage of easy installation is achieved.

[0028] In summary, through the cooperation of the first fireproof plate, the second fireproof plate, the U-shaped groove fixing strip, the L-shaped keel, the flange and the screw, the structural strength, the fireproof performance and the convenience of installation are improved in multiple dimensions, and the technical progress and practical value are remarkable.

[0029] The preferred embodiment of the utility model and the beneficial effects thereof will be further described in detail in combination with the specific implementation mode. BRIEF DESCRIPTION OF DRAWINGS

[0030] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification, and are used together with the following specific implementation mode to explain the utility model, but should not constitute a limitation on the utility model. In the drawings:

[0031] Figure 1 is the assembly view of the air pipe assembled by the embedded fixing part of the utility model;

[0032] Figure 2 is the exploded view of the air pipe assembled by the embedded fixing part of the utility model;

[0033] Figure 3 is the top view of the air pipe assembled by the embedded fixing part of the utility model;

[0034] Figure 4 is the sectional view of the air pipe assembled by the embedded fixing part of the utility model;

[0035] Figure 5 is the local sectional view of the air pipe assembled by the embedded fixing part of the utility model.

[0036] Explanation of reference numerals: first fireproof plate 1, second fireproof plate 2, U-shaped groove fixing strip 3, L-shaped keel 4, flange 5, screw 6, fireproof material layer 11, metal layer 12, inner side wall 31, outer side wall 32, connecting wall 33, connecting hole 50. DETAILED DESCRIPTION

[0037] The specific embodiments of the utility model are described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0038] Please refer to Figures 1 to 5 The utility model provides a kind of pre-buried fixing piece assembly air pipe, including first fireproof plate 1, second fireproof plate 2, U channel type fixed strip 3, L-shaped keel 4, flange 5 and screw 6.Two first fireproof plates 1 are arranged in parallel, two second fireproof plates 2 are arranged in parallel between two first fireproof plates 1, form square tube body structure.U channel type fixed strip 3 is embedded in the periphery end surface of first fireproof plate 1, the inner side wall of U channel type fixed strip 3 is embedded in first fireproof plate 1, and the outer side wall of U channel type fixed strip 3 is close to the inner wall surface of first fireproof plate 1.The end surface of second fireproof plate 2 in short side direction is embedded with U channel type fixed strip 3, and the inner side wall of U channel type fixed strip 3 is embedded in second fireproof plate 2, and the outer side wall is close to the inner wall surface of second fireproof plate 2.Four edges of square tube body structure are provided with L-shaped keel 4, and L-shaped keel 4 is fixed on the inner side wall of corresponding U channel type fixed strip 3 by screw 6.Two flanges 5 are respectively arranged at both ends of square tube body structure, and each flange 5 is fixed on the inner side wall of corresponding U channel type fixed strip 3 by screw 6.

[0039] The pre-buried fixing piece assembly air pipe provided by the utility model realizes the significant improvement of structural stability, convenient connection and fireproof performance through the cooperative design of each component, and has the following specific beneficial effects:

[0040] One, high-strength modular structure design improves overall rigidity

[0041] Two first fireproof plates 1 arranged in parallel and two second fireproof plates 2 are vertically spliced to form square tube body structure, and a stable mechanical support frame is constructed by symmetrical layout.U channel type fixed strip 3 embedded in the periphery end surface of first fireproof plate 1 and the short edge end surface of second fireproof plate 2 has one side wall embedded in the plate body to form embedded connection, and the other side wall is close to the inner wall surface of the plate body, so that U channel type fixed strip 3 and fireproof plate form rigid whole, effectively enhance the shear resistance and bending strength of the edge of the plate body, avoid the problem that the edge of traditional air pipe is easy to break.

[0042] L-shaped keel 4 arranged at four edges of square tube body is fixedly connected with U channel type fixed strip 3 of corresponding edge by screw 6, and the double right angle edges of L-shaped keel 4 are respectively fitted with U channel type fixed strip 3 of adjacent two fireproof plates, to form three-dimensional support structure for edge angle of tube body.The design converts the plane stress of traditional air pipe into three-dimensional support stress, so that the anti-external extrusion deformation capacity of tube body is improved by more than 30%.

[0043] Two, enhance fireproof sealing performance

[0044] The flanges 5 at both ends of the pipe body are directly fixed to the U-shaped fixed strip 3 by screws 6. The U-shaped fixed strip 3 serves as an intermediate connecting component and provides a flat and stable mounting surface for the flanges 5. The screws 6 are evenly distributed and fixed to the U-shaped fixed strip 3 and embedded in one side wall of the fireproof plate. The screws 6 do not penetrate the fireproof plate, improving the sealing of the screw connection and effectively reducing the risk of air leakage during the operation of the ventilation system.

[0045] III. Easy to install

[0046] During installation, the U-shaped fixed strip 3 is simply knocked into the end face of the fireproof plate, and then the screws 6 are passed through the L-shaped keel 4 or the flanges 5, achieving fixation and having the advantage of easy installation.

[0047] In summary, the air pipe realizes multi-dimensional improvement in structural strength, fireproof performance, and installation convenience through the coordinated innovation of the first fireproof plate 1, the second fireproof plate 2, the U-shaped fixed strip 3, the L-shaped keel 4, the flanges 5, and the screws 6, having significant technical progress and practical value.

[0048] In this embodiment, the first fireproof plate 1 includes a fireproof material layer 11 and a metal layer 12 fixed to the two side surfaces of the fireproof material layer 11. The fireproof material layer 11 can be made of fireproof gypsum board or calcium silicate board, etc. The metal layer 12 can be made of galvanized steel plate or stainless steel plate. The second fireproof plate 2 can have the same structure as the first fireproof plate 1.

[0049] In this embodiment, the U-shaped fixed strip 3 includes an inner side wall 31, an outer side wall 32, and a connecting wall 33. The inner side wall 31 and the outer side wall 32 are integrally connected to the two sides of the connecting wall 33, respectively, and are perpendicular to the connecting wall 33. The inner side wall 31 of the U-shaped fixed strip 3 is embedded in the end face of the first fireproof plate 1 or the second fireproof plate 2, forming an embedded mechanical engagement with the plate body. The connecting wall 33 serves as a rigid connection main body of the inner and outer side walls, uniformly conducting the embedding stress of the inner side wall 31 to the outer side wall 32, so that the outer side wall 32 tightly adheres to the inner wall surface of the fireproof plate to form a stable support base. This structural design effectively avoids the risk of separation between the U-shaped fixed strip 3 and the fireproof plate.

[0050] The height of the inner side wall 31 is greater than the height of the outer side wall 32 to facilitate the fixation of the screws. The width between the inner side wall 31 and the outer side wall 32 is less than the thickness of the fireproof plate. The thickness of the inner side wall 31, the outer side wall 32, and the connecting wall 33 is 0.5 to 2 mm. The U-shaped fixed strip 3 can be made of a metal plate bent into shape.

[0051] In this embodiment, the L-shaped keel 4 can be made of angle steel.

[0052] In this embodiment, the flanges 5 are made of angle steel and welded into a square frame compatible with the square pipe body structure. The square frame has a connecting hole 50. The connecting hole 50 is a waist-shaped hole.

[0053] In this embodiment, the joint between the first fireproof plate 1 and the second fireproof plate 2 is filled with fireproof sealant.

[0054] In this embodiment, each screw 6 is sleeved with a gasket, which is clamped between the nut of the screw 6 and the L-shaped keel 4 or the flange 5.

[0055] In the description of the utility model, it is explained that the position or position relationship indicated by the terms "upper", "lower" and the like is based on the position or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying importance; the words "bottom surface" and "top surface", "inner" and "outer" respectively refer to the direction towards or away from a specific component geometry.

[0056] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "communication", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be direct communication, or indirect communication through intermediate medium, or communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0057] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A pre-embedded fixture fitting air duct, characterized by, The first fireproof plate (1), the second fireproof plate (2), the U-shaped groove fixing strip (3), the L-shaped keel (4), the flange (5) and the screw (6) are included. Two first fireproof plates (1) are arranged in parallel, and two second fireproof plates (2) are arranged in parallel between the two first fireproof plates (1) and are vertically spliced to form a square tube structure. The four peripheral end faces of the first fireproof plate (1) are embedded with U-shaped groove fixing strips (3), the inner side wall (31) of the U-shaped groove fixing strip (3) is embedded into the first fireproof plate (1), and the outer side wall (32) is tightly attached to the inner wall surface of the first fireproof plate (1). The two end faces of the second fireproof plate (2) in the short edge direction are embedded with U-shaped groove fixing strips (3), the inner side wall (31) of the U-shaped groove fixing strip (3) is embedded into the second fireproof plate (2), and the outer side wall (32) is tightly attached to the inner wall surface of the second fireproof plate (2). The four edges of the square tube structure are provided with L-shaped keels (4), and the L-shaped keels (4) are fixed on the inner side wall (31) of the U-shaped groove fixing strip (3) of the corresponding edge through the screw (6). Two flanges (5) are arranged at the two ends of the square tube structure, and the flange (5) is fixed on the inner side wall (31) of the U-shaped groove fixing strip (3) of the corresponding end through the screw (6).

2. The pre-embedded fixture assembly duct according to claim 1, wherein: The U-shaped groove fixing strip (3) includes mutually perpendicular inner side wall (31), outer side wall (32) and connecting wall (33), and the inner side wall (31) and the outer side wall (32) are integrally connected through the connecting wall (33).

3. The pre-embedded fixture assembly duct according to claim 2, wherein: The height of the inner side wall (31) is greater than the height of the outer side wall (32), and the spacing between the inner side wall (31) and the outer side wall (32) is less than the thickness of the fireproof plate.

4. The pre-embedded fixture assembly duct of claim 1, wherein: The first fireproof plate (1) and the second fireproof plate (2) both include a fireproof material layer (11) and a metal layer (12) compounded on both sides thereof.

5. The pre-embedded fixture assembly duct of claim 4, wherein: The fireproof material layer (11) adopts fireproof gypsum board or calcium silicate board, and the metal layer (12) adopts galvanized steel plate or stainless steel plate.

6. The embedded fixture assembly duct according to claim 1, wherein: The L-shaped keel (4) is an angle steel.

7. The embedded fixture assembly duct according to claim 1, wherein: The flange (5) is a square frame welded by an angle steel, and the square frame is provided with a connecting hole (50).

8. The embedded fixture assembly duct according to claim 1, wherein: The joint between the first fireproof plate (1) and the second fireproof plate (2) is filled with fireproof sealant.

9. The embedded fixture assembly duct according to claim 1, wherein: A gasket is arranged between the nut of the screw (6) and the L-shaped keel (4) or the flange (5).

10. The embedded fixture assembly duct according to claim 2, wherein: The U-shaped groove fixing strip (3) is formed by bending a metal plate.

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