Roof vent pipe base

Abstract

The utility model discloses a roof steam exhaust pipe base, including base body, the top surface center of base body is equipped with the mounting groove, the bottom surface of mounting groove is equipped with through -hole, and the mounting groove is used for steam exhaust stand pipe insertion, and steam exhaust stand pipe bottom sits on the bottom surface of mounting groove, and through -hole is linked with steam exhaust stand pipe, and the bottom surface of base body is equipped with cross steam exhaust groove, and the end of steam exhaust groove is equipped with the communicating port on the side surface of base body, and the communicating port is used for with steam exhaust way intercommunication, and the bottom of through -hole and cross steam exhaust groove central position are communicated up and down. The utility model discloses through base body connection steam exhaust way and steam exhaust stand pipe, and the installation is simple, easy, reduces the quality problem of construction, and the steam exhaust way and steam exhaust stand pipe between through base body steam exhaust unobstructed nature is better. The sectional structure can be replaced individually when partial damage, and the integral removal is not needed. Roof steam exhaust pipe base prefabrication, miniaturization is convenient transportation installation and the setting of prefabrication site, is favorable for shortening the construction period, reduces the labor cost, and promotes the overall construction benefit.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a roof vent pipe base. Background Technology

[0002] The existing roof venting structure uses φ50 PVC plastic pipes or galvanized steel pipes as venting risers, and there is no dedicated component connecting the venting riser and the venting duct. The venting riser and the venting duct are directly connected. This structure has the following shortcomings:

[0003] 1. The roof structure (concrete or steel structure) and the exhaust riser (PVC or metal) have different coefficients of thermal expansion. Stress is generated when the temperature changes, which leads to cracking at the connection between the exhaust duct and the riser.

[0004] Second, the exhaust duct is directly and rigidly connected to the exhaust riser without a gradual flare or flow guide design, resulting in high airflow resistance and low exhaust efficiency.

[0005] 3. When the exhaust duct and the riser are not aligned, workers often forcibly bend the pipe, causing the exhaust duct to flatten, reducing the effective ventilation area, and causing the waterproof layer to become hollow or damaged due to pulling.

[0006] Fourth, the exhaust duct and the riser are connected as a whole. If there is partial damage, the whole thing needs to be removed, which increases maintenance costs. Utility Model Content

[0007] The purpose of this invention is to provide a roof vent pipe base that facilitates the connection between the vent pipe and the vent riser.

[0008] The purpose of this utility model is achieved as follows.

[0009] A roof vent pipe base includes a base body, a mounting groove at the center of the top surface of the base body, a through hole at the bottom surface of the mounting groove, the mounting groove for inserting a vent pipe, the bottom of the vent pipe resting on the bottom surface of the mounting groove, the through hole communicating with the vent pipe, a cross-shaped vent groove at the bottom surface of the base body, a connecting port at the end of the vent groove on the side of the base body, the connecting port communicating with the vent duct, and the bottom of the through hole communicating vertically with the center of the cross-shaped vent groove.

[0010] The cross-shaped venting channel reduces the weight of the base body.

[0011] Furthermore, the mounting groove has a circular cross-section, and its diameter is larger than the outer diameter of the exhaust riser. There is an installation gap between the side wall of the mounting groove and the outer wall of the exhaust riser. The inner diameter of the exhaust riser is larger than the diameter of the through hole, and the centers of the mounting groove and the through hole are on the same axis.

[0012] The installation gap facilitates the insertion of the exhaust riser. At the same time, the installation gap prevents the exhaust riser and the base body from being deformed or even damaged due to thermal expansion.

[0013] Furthermore, the centers of the through hole and the cross-shaped exhaust groove are on the same axis, and the outline range of the through hole is smaller than the central area range of the cross-shaped exhaust groove.

[0014] The exhaust duct allows for smooth steam discharge through the through-hole.

[0015] Furthermore, the cross-section of the connecting port is in the shape of a door, and the base body has a recess corresponding to the connecting port. The recess is used to connect with the protrusion of the exhaust duct block, and the connecting port and the exhaust duct are aligned and connected.

[0016] The recessed design facilitates the connection between the base body and the exhaust duct block, and the standardized design makes installation easy.

[0017] Furthermore, the side of the base body is provided with a first inclined surface that slopes inward from top to bottom corresponding to the top of the connecting opening. The first inclined surface is in the shape of an isosceles trapezoid. The side of the base body is provided with symmetrically arranged second inclined surfaces on both sides of the connecting opening. The second inclined surfaces slope inward from near the side edge. The second inclined surfaces are in the shape of a right trapezoid. The first inclined surface and the two second inclined surfaces constitute the recess.

[0018] After the recess is connected to the exhaust channel, it guides the water vapor to flow into the body of the base.

[0019] Furthermore, the base body is prefabricated from a single piece of aerated concrete.

[0020] The base body is made of the same material, so there will be no stress cracking problem due to temperature changes. The standardized design of the prefabricated blocks avoids errors caused by on-site drilling and quality problems such as cracks, ensuring smooth steam exhaust. No skilled workers are required to operate it, reducing the risk of construction quality fluctuations.

[0021] Furthermore, the base body is embedded in the roof, with the top surface of the base body flush with the roof insulation layer. After the roof waterproof layer covers the top surface of the base body, it extends upward along the side of the exhaust riser inserted into the installation groove, forming a flashing termination on the side of the exhaust riser.

[0022] The exhaust riser, base body, and exhaust duct blocks are constructed in sections, allowing for individual replacement of damaged sections without requiring complete dismantling.

[0023] This utility model connects the exhaust duct and exhaust riser via a roof exhaust pipe base, making installation simple and easy, reducing quality problems caused by construction, and improving the smooth flow of exhaust between the exhaust duct and exhaust riser. The segmented structure allows for individual replacement in case of partial damage, eliminating the need for complete dismantling. The prefabricated roof exhaust pipe base is compact, facilitating transportation, installation, and the establishment of a prefabrication site, which helps shorten the construction period, reduce labor costs, and improve overall construction efficiency. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the base body in Embodiment 1.

[0025] Figure 2 This is a top view of the base body in Embodiment 1.

[0026] Figure 3 This is a side view of the base body in Embodiment 1.

[0027] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0028] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure along the BB direction.

[0029] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure along the CC direction.

[0030] Figure 7 for Figure 4 A schematic diagram of the cross-sectional structure of the base body and exhaust duct blocks after installation.

[0031] Figure 8 This is a cross-sectional structural diagram of the exhaust riser and base body after they have been installed on the roof in Example 1. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Example 1, see Figure 1-7 As shown, a roof vent pipe base includes a base body 1. The top surface of the base body 1 has a mounting groove 2 at its center, and the bottom surface of the mounting groove 2 has a vertical through hole. The bottom surface of the base body 1 has a cross-shaped vent groove 4, and the end of the vent groove 4 has a connecting opening 40 on the side of the base body 1. The bottom of the through hole is vertically connected to the center of the cross-shaped vent groove 4.

[0034] In this embodiment, the base body 1 is prefabricated from aerated concrete. The mounting groove 2 has a circular cross-section, and its diameter is larger than the outer diameter of the exhaust riser 7. An installation gap 10 is left between the side wall of the mounting groove 2 and the outer side wall of the exhaust riser 7. The inner diameter of the exhaust riser 7 is larger than the diameter of the through hole. The centers of the mounting groove 2 and the through hole are on the same axis. The centers of the through hole and the cross-shaped exhaust groove 4 are on the same axis, and the outline of the through hole is smaller than the central area of ​​the cross-shaped exhaust groove 4.

[0035] The cross-section of the connecting opening 40 is U-shaped. The base body 1 has a recess 5 corresponding to the connecting opening 40. The recess 5 is used to connect with the protrusion of the exhaust duct block 6. The connecting opening 40 and the exhaust duct 60 are aligned and connected. Specifically, the side of the base body 1 has a first inclined surface 51 that slopes inward from top to bottom corresponding to the top of the connecting opening 40. The first inclined surface 51 is in the shape of an isosceles trapezoid. The side of the base body 1 has symmetrically arranged second inclined surfaces 52 on both sides of the connecting opening 40. The second inclined surfaces 52 slope inward from near the side edge. The second inclined surfaces 52 are in the shape of a right trapezoid. The first inclined surface 51 and the two second inclined surfaces 52 constitute the recess 5.

[0036] See Figure 8 As shown, the base body 1 is embedded in the roof, and the top surface of the base body 1 is flush with the roof insulation layer 9. The roof vent duct 60 is composed of several standardized vent duct blocks 6. One end of each vent duct block 6 has a protrusion, and the other end has a concave part. The vent duct blocks 6 are connected to each other through the protrusions and concave parts. The protrusions and concave parts 5 of the vent duct blocks 6 are connected, meaning that the concave parts and concave parts 5 have the same structure. The vent duct blocks 6 are also prefabricated from aerated concrete, so that the base body 1 and the vent duct blocks 6 have the same coefficient of thermal expansion, making them less prone to cracking due to different stresses. The vent duct 60 is formed within the vent duct blocks 6.

[0037] The bottom of the exhaust riser 7 is inserted into the mounting groove 2, meaning the bottom of the exhaust riser 7 rests on the bottom surface of the mounting groove 2, and the exhaust through hole is aligned and connected to the exhaust riser 7. An installation gap 10 is left between the side wall of the mounting groove 2 and the outer side wall of the exhaust riser 7. Preferably, the exhaust riser 7 is also prefabricated from aerated concrete. After the roof waterproof layer 8 covers the top surface of the base body 1, it extends upwards along the side of the exhaust riser 7 inserted into the mounting groove 2, forming a flashing termination 80 on the side of the exhaust riser 7 to prevent leakage or seepage at the connection between the exhaust riser 7 and the exhaust riser 7. Moisture in the roof insulation layer 9 is discharged from the exhaust riser 7 through the exhaust channel 60, the exhaust groove 4, and the through hole. No skilled workers are required for operation, reducing the risk of construction quality fluctuations. This facilitates later maintenance and renovation work, improving the sustainable use of the building.

[0038] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.

[0039] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0040] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0041] Terms used in this invention, such as "approximately," "generally," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.

Claims

1. A roof vent pipe base, characterized in that, The base body (1) includes a mounting groove (2) at the center of the top surface of the base body (1), and a through hole at the bottom surface of the mounting groove (2). The mounting groove (2) is used for the insertion of the exhaust riser (7). The bottom of the exhaust riser (7) sits on the bottom surface of the mounting groove (2). The through hole is connected to the exhaust riser (7). The bottom surface of the base body (1) is provided with a cross-shaped exhaust groove (4). The end of the exhaust groove (4) is provided with a connecting port (40) on the side of the base body (1). The connecting port (40) is used to connect with the exhaust passage (60). The bottom of the through hole is connected vertically to the center position of the cross-shaped exhaust groove (4).

2. The roof vent pipe base according to claim 1, characterized in that, The mounting groove (2) has a circular cross-section. The diameter of the mounting groove (2) is larger than the outer diameter of the exhaust riser (7). There is an installation gap (10) between the side wall of the mounting groove (2) and the outer side wall of the exhaust riser (7). The inner diameter of the exhaust riser (7) is larger than the diameter of the through hole. The center of the mounting groove (2) and the through hole are on the same axis.

3. The roof vent pipe base according to claim 1, characterized in that, The centers of the through hole and the cross-shaped exhaust groove (4) are on the same axis, and the outline range of the through hole is smaller than the central area range of the cross-shaped exhaust groove (4).

4. The roof vent pipe base according to claim 1, characterized in that, The cross section of the connecting port (40) is in the shape of a door. The base body (1) is provided with a recess (5) corresponding to the connecting port (40). The recess (5) is used to connect with the protrusion of the exhaust block (6). The connecting port (40) and the exhaust block (60) are aligned and connected.

5. The roof vent pipe base according to claim 4, characterized in that, The base body (1) has a first inclined surface (51) that slopes inward from top to bottom at the top of the connecting port (40). The first inclined surface (51) is in the shape of an isosceles trapezoid. The base body (1) has two symmetrically arranged second inclined surfaces (52) on both sides of the connecting port (40). The second inclined surface (52) slopes inward from near the side edge. The second inclined surface (52) is in the shape of a right trapezoid. The first inclined surface (51) and the two second inclined surfaces (52) constitute the recess (5).

6. The roof vent pipe base according to claim 1, characterized in that, The base body (1) is prefabricated from aerated concrete.

7. The roof vent pipe base according to claim 1, characterized in that, The base body (1) is embedded in the roof. The top surface of the base body (1) is flush with the roof insulation layer (9). The roof waterproof layer (8) covers the top surface of the base body (1) and extends upward along the side of the exhaust riser (7) inserted into the installation groove (2), forming a flashing end (80) on the side of the exhaust riser (7).

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