A roof ventilation structure with perforated connectors

By introducing vent connectors into the roof ventilation structure, the problems of easy clogging and unstable sealing of vents are solved, enabling convenient installation and stable sealing of vents, and improving the overall performance of the roof ventilation system.

CN224281788UActive Publication Date: 2026-05-26BEIJING LIUJIAN CONSTR GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING LIUJIAN CONSTR GRP
Filing Date
2025-05-22
Publication Date
2026-05-26

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Abstract

This utility model discloses a roof venting structure with a vent connector, comprising a roof slab, a slope-forming layer on top of the roof slab, an insulation layer on top of the slope-forming layer, a horizontal connecting pipe between the slope-forming layer and the insulation layer, and a vent connector connecting the horizontal connecting pipe. The vent connector facilitates the integrated prefabrication of the vent holes and their sealing structure, allowing for convenient installation at the required venting locations, significantly saving labor and ensuring installation quality. The baffle ensures that the vent-sealing cloth's installation range meets the sealing size requirements and can be fixed in conjunction with the insulation board, improving the precision of the vent-sealing cloth's installation. Furthermore, the design of the fixing groove and fixing strip further ensures the stability of the vent-sealing cloth's fixation.
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Description

Technical Field

[0001] This utility model relates to the field of building roof ventilation technology, and in particular to a roof ventilation structure containing a ventilated connector. Background Technology

[0002] Roofing construction is an extremely important part of building construction. During use, roofs are subject to moisture intrusion. When moisture is heated or cooled, it causes irregular expansion or contraction, which in turn affects the overall waterproofing effect, load requirements, and thermal insulation performance of the roof.

[0003] To address the issue of moisture intrusion into the roof, construction projects often incorporate a network of ventilation channels, with exhaust pipes extending from these channels to allow vapors within the insulation layer to escape promptly. However, the vents on the horizontal branches of these exhaust pipes frequently become entry points for fluids used in roof pouring. During the pouring process, these fluids can enter and clog the pipes, rendering them ineffective. Simply sealing these vents with wire mesh or fabric is not only inconvenient for on-site construction but also prone to instability and insufficient sealing area, allowing fluids to enter the exhaust pipes. Therefore, a targeted design for sealing the vents is necessary. Utility Model Content

[0004] This utility model provides a roof ventilation structure with a vent connector to solve technical problems such as convenient installation of vents, fixation of the sealing structure at the vent, and precise installation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A roof ventilation structure with vent connectors includes a roof slab, a slope-forming layer disposed on top of the roof slab, an insulation layer disposed on top of the slope-forming layer, a horizontal connecting pipe disposed between the slope-forming layer and the insulation layer, and vent connectors connecting the horizontal connecting pipes.

[0007] The vent connector includes a connecting tube body, a vent hole located in the middle of the connecting tube body, a vent-covering cloth wrapped around the vent hole, a retaining edge located on the connecting tube body and on both sides of the vent-covering cloth, a fixing groove located on both sides of the vent hole on the connecting tube body and on the inner side of the vent-covering cloth, and a fixing strip connected to the outer side of the vent-covering cloth at the corresponding fixing groove position.

[0008] The insulation layer includes an insulation board and an insulation board groove disposed at the bottom of the insulation board, and the insulation board groove is correspondingly engaged with the vent hole connector.

[0009] Furthermore, a leveling layer is provided on top of the insulation layer, and a roof surface layer is provided on top of the leveling layer; vertical exhaust pipes are also provided in the vertical direction of the insulation layer, leveling layer and roof surface layer, and the bottom of the vertical exhaust pipes are connected to the horizontal connecting pipes.

[0010] Furthermore, the top of the vertical exhaust pipe extends through the roof surface, and an elbow outlet is provided at the top of the vertical exhaust pipe.

[0011] Furthermore, the perforated fabric is a polyethylene non-woven fabric, which fully covers the air vents, and the distance from the outer edge of the perforated fabric to the center of the air vent is greater than the radius of the air vent, with the excess length being no less than 15mm.

[0012] Furthermore, the perforated cloth is provided in at least two layers, and the perforated cloth is bonded to the contact surface of the connecting tube body by a connecting adhesive.

[0013] Furthermore, the vent connectors are spaced apart on the horizontal connecting pipe, with the spacing adapted to the designed vent spacing; the horizontal connecting pipes are arranged in a mesh pattern on the roof; the connector tube body is sleeved and connected to the outside of the horizontal connecting pipe, and a waterproof sealing ring is provided at the sleeve.

[0014] Furthermore, the baffle is annular, and the distance between the two baffles is adapted to the design width of the perforated cloth; and the upper part of the baffle is snapped into the groove of the insulation board.

[0015] Furthermore, the fixing groove is a circumferential groove with a width of not less than 3mm; a fixing strip is bound or sleeved inside the circumferential groove; the fixing strip is a cloth strap or a plastic sleeve.

[0016] The beneficial effects of this utility model are reflected in:

[0017] This invention, through the design of the vent connector, facilitates the integrated prefabrication of the vent and its sealing structure, allowing for convenient installation at the required venting locations, significantly saving labor and ensuring installation quality. The baffle ensures that the installation range of the vent-sealing cloth meets the dimensional requirements of the sealing and can be combined with insulation boards for fixation, improving the precision of the vent-sealing cloth installation. Furthermore, the design of the fixing groove and fixing strip further ensures the stability of the vent-sealing cloth. Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention; the main objectives and other advantages of this invention can be realized and obtained by means of the methods particularly pointed out in the description. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the roof ventilation structure installation.

[0019] Figure 2 This is a schematic diagram of the vent connector structure;

[0020] Figure 3 This is a schematic diagram of the connection structure between the vent connector and the insulation layer;

[0021] Figure 4 This is a schematic diagram of the connecting pipe body and its connection structure.

[0022] Reference numerals in the attached drawings: 1-ventilation hole connector, 11-connecting pipe body, 12-ventilation hole, 13-edge, 14-hole shielding cloth, 15-fixing strip, 16-fixing groove, 2-horizontal connecting pipe, 3-vertical exhaust pipe, 4-roof slab, 5-slope layer, 6-insulation layer, 61-insulation board, 62-insulation board groove, 7-leveling layer, 8-roof surface layer. Detailed Implementation

[0023] Taking the installation of a roof exhaust pipe as an example, such as Figures 1 to 4 As shown, the roof venting structure with vent connectors includes a roof slab 4, a slope-forming layer 5 on top of the roof slab 4, an insulation layer 6 on top of the slope-forming layer 5, a horizontal connecting pipe 2 between the slope-forming layer 5 and the insulation layer 6, and vent connectors 1 connecting the horizontal connecting pipes 2. A leveling layer 7 is provided on top of the insulation layer 6, and a roof surface layer 8 is provided on top of the leveling layer 7. Vertical vent pipes 3 are also provided vertically along the insulation layer 6, leveling layer 7, and roof surface layer 8, with their bottoms connected to the horizontal connecting pipes 2. The top of the vertical vent pipe 3 extends through the roof surface layer 8, and a bend outlet is provided at the top of the vertical vent pipe 3.

[0024] In this embodiment, the insulation layer 6 includes an insulation board 61 and an insulation board groove 62 disposed at the bottom of the insulation board 61, and the insulation board groove 62 is correspondingly engaged with the vent connector 1.

[0025] In this embodiment, the perforation-covering cloth 14 is a polyethylene non-woven fabric. The perforation-covering cloth 14 completely covers the vent holes 12, and the distance from the outer edge of the perforation-covering cloth 14 to the center of the vent holes 12 is greater than the radius of the vent holes 12, with the excess length being no less than 15mm. The perforation-covering cloth 14 is provided in at least two layers, and the contact surface between the perforation-covering cloth 14 and the connecting tube body 11 is bonded together with adhesive.

[0026] In this embodiment, the vent connector 1 includes a connecting tube 11, a vent 12 disposed in the middle of the connecting tube 11, a vent-covering cloth 14 wrapped around the vent 12, a retaining edge 13 disposed on the connecting tube 11 and located on both sides of the vent-covering cloth 14, a fixing groove 16 disposed on both sides of the vent 12 on the connecting tube 11 and located on the inner side of the vent-covering cloth 14, and a fixing strip 15 connected to the outer side of the vent-covering cloth 14 at the corresponding fixing groove 16 position; the connecting tube 11 is made of PVC material, and the retaining edge 13 and the fixing groove 16 are integrally formed.

[0027] In this embodiment, the vent connector 1 is spaced out on the horizontal connecting pipe 2, and the spacing is adapted to the design spacing of the vent 12; the horizontal connecting pipe 2 is arranged in a mesh pattern on the roof horizontally upward; the connector tube body 11 is sleeved and connected to the outside of the horizontal connecting pipe 2 and a waterproof sealing ring is provided at the sleeve.

[0028] In this embodiment, the baffle 13 is annular, and the distance between the two baffles 13 is adapted to the design width of the perforated cloth 14; and the upper part of the baffle 13 is snapped into the groove 62 of the insulation board.

[0029] In this embodiment, the fixing groove 16 is a circumferential groove with a width of not less than 3mm; the fixing strip 15 is tied or sleeved inside the circumferential groove; the fixing strip 15 is a cloth strap or a plastic sleeve.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roof venting structure comprising a vent hole connector, characterized by, Includes a roof slab (4), a slope layer (5) set on top of the roof slab (4), an insulation layer (6) set on top of the slope layer (5), a horizontal connecting pipe (2) set between the slope layer (5) and the insulation layer (6), and a vent connector (1) connecting the horizontal connecting pipe (2). The vent connector (1) includes a connecting tube (11), a vent (12) located in the middle of the connecting tube (11), a vent cloth (14) wrapped around the vent (12), a retaining edge (13) located on the connecting tube (11) and on both sides of the vent cloth (14), a fixing groove (16) located on both sides of the vent (12) and on the inner side of the vent cloth (14) on the connecting tube (11), and a fixing strip (15) connected to the outer side of the vent cloth (14) at the corresponding fixing groove (16). The insulation layer (6) includes an insulation board (61) and an insulation board groove (62) disposed at the bottom of the insulation board (61), wherein the insulation board groove (62) is corresponding to the vent hole connector (1).

2. A roof ventilation structure with perforated connectors as described in claim 1, characterized in that, The insulation layer (6) is provided with a leveling layer (7) on top, and a roof surface layer (8) is provided on top of the leveling layer (7); a vertical exhaust pipe (3) is also provided in the vertical direction of the insulation layer (6), the leveling layer (7) and the roof surface layer (8), and the bottom of the vertical exhaust pipe (3) is connected to the horizontal connecting pipe (2).

3. A roof ventilation structure with perforated connectors as described in claim 2, characterized in that, The top of the vertical exhaust pipe (3) extends through the roof surface layer (8), and the top of the vertical exhaust pipe (3) is provided with an elbow outlet.

4. A roof ventilation structure with perforated connectors as described in claim 1, characterized in that, The perforated cloth (14) is a polyethylene nonwoven fabric. The perforated cloth (14) fully covers the air vent (12), and the distance from the outer edge of the perforated cloth (14) to the center of the air vent (12) is greater than the radius of the air vent (12) and the extra length is not less than 15mm.

5. A roof ventilation structure with perforated connectors as described in claim 4, characterized in that, The perforated cloth (14) has at least two layers, and the contact surface between the perforated cloth (14) and the connecting tube body (11) is bonded together with adhesive.

6. A roof ventilation structure with perforated connectors as described in claim 5, characterized in that, The ventilation hole connector (1) is spaced apart on the horizontal connecting pipe (2), with the spacing adapted to the design ventilation hole (12) setting distance; the horizontal connecting pipe (2) is arranged in a mesh pattern on the roof horizontally upward; the connector tube body (11) is sleeved and connected to the outside of the horizontal connecting pipe (2) and a waterproof sealing ring is provided at the sleeve.

7. A roof ventilation structure with perforated connectors as described in claim 1, characterized in that, The baffle (13) is circular, and the distance between the two baffles (13) is adapted to the design width of the perforated cloth (14); and the upper part of the baffle (13) is snapped into the groove (62) of the insulation board.

8. A roof ventilation structure with perforated connectors as described in claim 1, characterized in that, The fixing groove (16) is a circumferential groove with a width of not less than 3mm; the fixing strip (15) is tied or sleeved in the circumferential groove; the fixing strip (15) is a cloth strap or a plastic sleeve.