屋面排汽管开关结构

Abstract

本实用新型公开一种屋面排汽管开关结构，包括排汽立管，排汽立管顶部设有排汽横管，排汽立管和排汽横管呈T型设置，排汽横管两外端设有向下倾斜的排汽口，排汽立管通过枢轴转动连接有可翻转的挡板，挡板上沿挡板翻转方向设有蜗齿，排汽横管上竖直转动设置有蜗杆，蜗杆底部延伸进排汽立管与蜗齿啮合传动，蜗杆顶部延伸出排汽立管连接有旋钮，旋钮带动蜗杆旋转，蜗杆带动蜗齿旋转，挡板随蜗齿旋转而翻转，使挡板至少具备第一状态和第二状态。本实用新型屋面排汽管开关结构可更根据保温层内湿度及外部空气环境对排汽立管进行开关控制，保证保温层内保持干燥。有效解决现有排汽管存在的水汽倒灌问题，提升屋面防水保温性能。

Claims

1. A roof vent pipe switch structure, including a vent riser (1), characterized in that, The top of the exhaust riser (1) is provided with an exhaust horizontal pipe (2). The exhaust riser (1) and the exhaust horizontal pipe (2) are arranged in a T-shape. The two outer ends of the exhaust horizontal pipe (2) are provided with downwardly inclined exhaust ports (20). The exhaust riser (1) is pivotally connected to a reversible baffle (3). The baffle (3) is provided with a worm gear (31) along the flipping direction of the baffle (3). The exhaust horizontal pipe (2) is vertically rotatably provided with a worm (4). The bottom of the worm (4) extends into the exhaust riser (1) and meshes with the worm gear (31) for transmission. The top of the worm (4) extends out of the exhaust riser (1) and is connected to a knob (7). The knob (7) drives the worm (4) to rotate. The worm (4) drives the worm gear (31) to rotate. The baffle (3) flips with the rotation of the worm gear (31), so that the baffle (3) has at least a first state and a second state: In the first state, the baffle (3) flips to the horizontal state, and the baffle (3) blocks the exhaust riser (1), so that the water vapor in the exhaust horizontal pipe (2) cannot pass through the exhaust riser (1). In the second state, the baffle (3) flips to the vertical or inclined state, and the exhaust riser (1) and the exhaust horizontal pipe (2) are connected. The water vapor in the exhaust riser (1) is discharged to the outside through the exhaust port (20) of the exhaust horizontal pipe (2).

2. The roofing steam pipe vent switch structure according to claim 1, wherein The top of the exhaust horizontal pipe (2) is provided with a stud (6) and a transmission rod (5). The transmission rod (5) is provided with a first helical tooth segment (51). The transmission rod (5) is threadedly connected to the first helical tooth segment (51) and the screw hole (61) of the stud (6). The bottom of the transmission rod (5) extends downward and is connected to the worm gear (4). The top of the transmission rod (5) is connected and fixed to the knob (7).

3. The roofing steam pipe vent switch structure according to claim 2, wherein The transmission rod (5) and the worm (4) are formed separately and then connected and fixed coaxially, or the transmission rod (5) and the worm (4) are formed as one piece.

4. The roofing vent tube switch structure according to claim 2, wherein The transmission rod (5) is provided with a first limiting block (52) above the first helical tooth section (51). When the transmission rod (5) rotates to the second state, the first limiting block (52) abuts against the exhaust horizontal pipe (2) or the stud (6), and the transmission rod (5) stops rotating. The transmission rod (5) is provided with a second limiting block (53) below the first helical tooth section (51). When the transmission rod (5) rotates in the opposite direction to the first state, the second limiting block (53) abuts against the top surface of the stud (6), and the transmission rod (5) stops rotating.

5. The roofing vent tube switch structure according to claim 2, wherein The bottom of the worm (4) is provided with a second helical tooth segment (41) that meshes with the worm tooth (31). The second helical tooth segment (41) and the first helical tooth segment (51) are arranged in opposite helical directions.

6. The roofing vent tube switch structure according to claim 1, wherein The baffle (3) is Z-shaped, and the worm gear (31) is fan-shaped and vertically arranged in the center of the baffle (3). A washer (32) is provided at the top of the lower end of the baffle (3). A limiting part (11) is provided on the inner side wall of the exhaust riser (1). When the baffle (3) is flipped to a horizontal state, the baffle (3) abuts against the limiting part (11) through the washer (32).

7. The roofing steam pipe vent switch structure according to claim 6, wherein A counterweight (33) is provided at the bottom of the higher end of the top surface of the baffle (3).

8. The roofing vent tube switch structure according to claim 1, wherein, The exhaust riser (1) is provided with a fixing sleeve (12), and the fixing sleeve (12) is provided with a guide hole (13) for the worm (4) to pass through.

9. The roof vent pipe switch structure according to claim 1, characterized in that, The bottom of the knob (7) is provided with a connecting sleeve (71), the top of the stud (6) is inserted into the connecting sleeve (71), the top of the transmission rod (5) passes through the connecting sleeve (71) and is connected and fixed to the knob (7). The connecting sleeve (71) rotates with the knob (7) relative to the stud (6), and the connecting sleeve (71) moves up and down with the knob (7) relative to the stud (6).

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