Ventilation opening switch structure for roof insulation layer

Abstract

This utility model discloses a vent opening switch structure for a roof insulation layer, including a vent body inserted into an exhaust duct. The vent body and the exhaust duct are shaped to match. An air inlet is provided at the outer end of the vent body. Baffles are horizontally rotatably connected to both sides of the inner cavity of the vent body via pivots. The baffles are controlled to rotate by a switch assembly, allowing them to have a first state and a second state. In the first state, the baffles rotate to a horizontal position, and the exhaust duct connects to the outside through the inner cavity of the vent body. In the second state, the baffles rotate to a vertical position, blocking the inner cavity of the vent body and disconnecting the exhaust duct from the outside. This utility model features a switchable baffle design for the vent body. Air convection is formed between the vent and the exhaust pipe of the exhaust duct to improve the efficiency of water vapor removal. The vent body can be switched on and off according to changes in humidity within the insulation layer and the external air environment, ensuring the roof insulation layer is in good working condition.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a ventilation opening switch structure for a roof insulation layer. Background Technology

[0002] Currently, roofs typically incorporate venting channels within the insulation layer. However, these channels only have vents, lacking ventilation openings. This structure results in moisture evaporating from within the roof by relying on humidity balance with the outside environment. When the outdoor air humidity is lower than the roof's internal structure, the moisture shifts outward. Because there are only outlets and no inlets, gas exchange cannot occur, leading to low efficiency in moisture transfer. This process takes a considerable amount of time and makes it difficult to thoroughly dry the roof insulation and the sloping layer. Utility Model Content

[0003] The purpose of this invention is to provide a switchable structure for the ventilation opening of a roof insulation layer that can be used in the exhaust duct.

[0004] The purpose of this utility model is achieved as follows.

[0005] The roof insulation layer ventilation opening switch structure includes a ventilation opening body, which is inserted into an exhaust duct. The ventilation opening body and the exhaust duct are shaped to match. An air inlet is provided at the outer end of the ventilation opening body. Baffles are horizontally rotatably connected to both sides of the inner cavity of the ventilation opening body via pivots. The baffles are controlled to rotate by a switch assembly, allowing the baffles to have a first state and a second state.

[0006] In the first state, the baffle rotates to a horizontal position, and the exhaust duct connects to the outside through the ventilation port and the internal cavity of the main body.

[0007] In the second state, the baffle rotates to a vertical position, separating the internal cavity of the vent body and disconnecting the exhaust duct from the outside.

[0008] Furthermore, the switch assembly includes a mounting tube, a pull cord, and a positioning pin. The lower end of the mounting tube is fixed to the vent body, and the inner cavity of the mounting tube is connected to the inner cavity of the vent body. One end of the pull cord is connected and fixed to a rotating end of the baffle, and the other end of the pull cord extends into the inner cavity of the mounting tube and is connected and fixed to the positioning pin. The upper end of the mounting tube is provided with a first positioning hole and a second positioning hole along the height direction. When the positioning pin is inserted into the first positioning hole, the baffle rotates to the first state. When the positioning pin is inserted into the second positioning hole, the baffle rotates to the second state.

[0009] The switch assembly actively controls the baffle state based on actual weather conditions or construction progress. Operation is simple and easy.

[0010] Furthermore, a reset counterweight is provided at one rotating end of the baffle. After the positioning pin of the reset counterweight disengages from the second positioning hole, the reset counterweight drives the baffle to rotate from the second state to the first state under the action of gravity.

[0011] The baffle can automatically reset under the action of gravity.

[0012] Furthermore, the upper end of the mounting tube is inverted U-shaped, and a switch handle is provided inside the upper end of the mounting tube, which slides up and down. The bottom of the switch handle extends downward from the upper end of the mounting tube, and a positioning pin is set on the switch handle. The pull rope is connected and fixed to the switch handle.

[0013] The switch handle allows for easy pulling of the cord, and the baffle adjustment is simple and easy to operate. The upper design of the mounting pipe prevents rainwater from entering the vent body's internal cavity through the mounting pipe.

[0014] Furthermore, the switch handle is provided with a mounting groove, in which a connecting pin, a guide rod, and a return spring are provided. The outer end of the guide rod and the inner end of the connecting pin are connected and fixed. The return spring is sleeved on the guide rod. The inner end of the positioning pin and the outer end of the connecting pin are connected and fixed. The return spring abuts against the bottom surface of the mounting groove. The elastic force of the return spring causes the outer end of the positioning pin to extend out of the mounting groove and insert into the first positioning hole or the second positioning hole or abut against the inner wall of the mounting tube.

[0015] The return spring keeps the positioning pin inserted into the first or second positioning hole, preventing the baffle from opening and closing on its own.

[0016] Furthermore, the switch handle is also provided with a pin handle. The middle part of the pin handle is rotatably connected to the switch handle via a rotating shaft. The upper end of the pin handle is provided with a slot and a sliding groove, which are connected. The bottom of the connecting pin extends downward to form a connecting part, which is inserted into the slot. The connecting part is rotatably connected to the actuating shaft passing through the sliding groove. The lower end of the pin handle extends out to the upper end of the mounting tube. Rotating the lower end of the pin handle causes the upper end of the pin handle to move the connecting pin inward and compress the return spring, causing the positioning pin to disengage from the first positioning hole or the second positioning hole.

[0017] The pin handle design makes it easy to disengage the positioning pin from the first or second positioning hole, and the positioning pin movement adjustment operation is simple, easy, and labor-saving.

[0018] Furthermore, a limiting part is provided in the inner cavity or baffle of the vent body. After the limiting part is rotated to the second state, the limiting part and the corresponding inner cavity or baffle of the vent body abut against each other, and the baffle can only rotate in the opposite direction to the first state.

[0019] The limiting part restricts the rotation direction of the baffle to prevent the switch assembly from failing.

[0020] Furthermore, guide sections are provided at the bends inside the installation pipe and at the connection between the installation pipe and the vent body. The guide sections limit the position of the pull rope and guide the pull rope to change direction.

[0021] The guide section prevents the pull rope from breaking due to excessive wear, making it convenient and effortless to pull the pull rope.

[0022] Furthermore, the upper end of the installation pipe extends to the roof surface.

[0023] The baffle is easy to adjust.

[0024] Furthermore, the installation pipe is embedded in the wall, with its upper end extending from the inner side of the wall.

[0025] Most of the installation pipes are hidden, reducing the risk of damage.

[0026] The ventilation opening body of this utility model has an openable baffle design. By forming air convection through the ventilation opening and the exhaust pipe of the exhaust duct, the efficiency of water vapor discharge is improved. The opening and closing control of the ventilation opening body can be adjusted according to the changes in humidity inside the insulation layer and the external air environment to ensure that the roof insulation layer is in good working condition. Attached Figure Description

[0027] Figure 1-3 This is a schematic diagram of the structure from the first state to the second state in Embodiment 1.

[0028] Figure 4 This is a schematic diagram of the internal structure of the vent body in Example 1.

[0029] Figure 5 This is a schematic diagram of the switch assembly in Embodiment 1.

[0030] Figure 6 This is a schematic diagram of the connection structure of the positioning pin connecting the pin, guide rod, return spring and pin handle in Embodiment 1.

[0031] Figure 7 This is a cross-sectional structural diagram of the ventilation opening body in the roof usage state 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 1-6 As shown, a vent opening switch structure for a roof insulation layer includes a vent body 1 and a switch assembly 3. The vent body 1 is inserted into an exhaust duct 71, and the shapes of the vent body 1 and the exhaust duct 71 are adapted to each other. An air inlet 10 is provided at the outer end of the vent body 1. Baffles 2 are horizontally rotatably connected to both sides of the inner cavity of the vent body 1 via pivots. The rotation of the baffles 2 is controlled by the switch assembly 3, allowing the baffles 2 to have a first state and a second state. In the first state, the baffles 2 rotate to a horizontal state, and the exhaust duct 71 connects to the outside through the inner cavity of the vent body 1. In the second state, the baffles 2 rotate to a vertical state, and the baffles 2 isolate the inner cavity of the vent body 1, disconnecting the exhaust duct 71 from the outside.

[0034] A reset counterweight 21 is provided at one rotating end of the baffle 2. After the positioning pin 32 of the reset counterweight 21 disengages from the second positioning hole 42, the reset counterweight 21 drives the baffle 2 to rotate from the second state to the first state under the action of gravity. A limiting part 22 is provided on the inner cavity of the vent body 1 or on the baffle 2. After rotating to the second state, the limiting part 22 abuts against the corresponding inner cavity of the vent body 1 or the baffle 2, and the baffle 2 can only rotate in the opposite direction to the first state. In this embodiment, the rotating end of the baffle 2 that rotates upward is provided with the reset counterweight 21, and the rotating end of the baffle 2 that rotates downward is provided with the limiting part 22. The limiting part 22 moves and abuts against the bottom of the inner cavity of the vent body 1, limiting its movement. The rotation angle of the baffle 2 is 90°.

[0035] The switch assembly 3 includes a mounting tube 4, a pull cord 31, and a positioning pin 32. The lower end of the mounting tube 4 is fixed to the vent body 1, and the inner cavity of the mounting tube 4 communicates with the inner cavity of the vent body 1. One end of the pull cord 31 is connected and fixed to a rotating end of the baffle 2, and the other end of the pull cord 31 extends into the inner cavity of the mounting tube 4 and is connected and fixed to the positioning pin 32. The upper end of the mounting tube 4 has a first positioning hole 41 and a second positioning hole 42 along its height direction. When the positioning pin 32 is inserted into the first positioning hole 41, the baffle 2 rotates to a first state. When the positioning pin 32 is inserted into the second positioning hole 42, the baffle 2 rotates to a second state.

[0036] The installation pipe 4 has guide sections 43 at its inner bend and at the connection between the installation pipe 4 and the vent body 1. The guide sections 43 limit the position of the pull rope 31 and guide the pull rope 31 to turn. Preferably, the guide section 43 is a grooved guide wheel.

[0037] The upper end of the mounting tube 4 is inverted U-shaped. A switch handle 5 is slidably mounted inside the upper end of the mounting tube 4. The bottom of the switch handle 5 extends downwards from the upper end of the mounting tube 4. A positioning pin 32 is mounted on the switch handle 5. A pull rope 31 is connected and fixed to the switch handle 5. The switch handle 5 has a mounting groove 51, within which a connecting pin 33, a guide rod 34, and a return spring 35 are mounted. The outer end of the guide rod 34 is inserted and fixedly connected to the inner end of the connecting pin 33. The return spring 35 is sleeved on the guide rod 34. The inner end of the positioning pin 32 is inserted and fixedly connected to the outer end of the connecting pin 33. The return spring 35 abuts against the bottom surface of the mounting groove 51. The elastic force of the return spring 35 causes the outer end of the positioning pin 32 to extend out of the mounting groove 51 and insert into the first positioning hole 41 or the second positioning hole 42. When the positioning pin 32 moves between the first positioning hole 41 and the second positioning hole 42, the positioning pin 32 abuts against the inner wall of the mounting tube 4.

[0038] The switch handle 5 is also equipped with a pin handle 6. The middle part of the pin handle 6 is rotatably connected to the switch handle 5 via a rotating shaft 60. The upper end of the pin handle 6 is provided with a slot 61 and a sliding groove 62, which are connected. The bottom of the connecting pin 33 extends downward to form a connecting part 36, which is inserted into the slot 61. The connecting part 36 is rotatably connected to the actuating shaft 63 passing through the sliding groove 62. The lower end of the pin handle 6 extends out of the upper end of the mounting tube 4. Rotating the pin handle 6 moves the switch handle 5 up and down. Rotating the lower end of the pin handle 6 causes the upper end of the pin handle 6 to move the connecting pin 33 inward and compress the return spring 35, causing the positioning pin 32 to disengage from the first positioning hole 41 or the second positioning hole 42.

[0039] See Figure 7 As shown, the vent body 1 is inserted into the insulation layer 7. The inner end of the vent body 1 is connected to the exhaust duct 71 of the insulation layer 7. The outer end of the vent body 1 extends out of the outer wall of the wall 8. The installation pipe 4 is embedded in the wall 8, and the upper end of the installation pipe 4 extends to the roof surface, that is, the upper end of the installation pipe 4 extends out from the inner side of the parapet wall 8 on the roof surface. The connection between the vent body 1 and the installation pipe 4 is embedded in the wall 8 and protected by the flashing termination 91 of the roof waterproof layer 9. The upper end of the installation pipe 4 is located above the flashing termination 91. The installation pipe 4 also constitutes the ventilation pipe of the vent body 1.

[0040] During the roof construction phase, various operations and rainfall can cause water to enter the insulation layer 7. During this phase, the baffle 2 is in the first state. The ventilation port body 1 and the exhaust pipe of the insulation layer 7 work together to achieve a one-in-one-out flow pattern, which improves the gas exchange efficiency, improves the drying efficiency of the insulation layer 7, and helps to improve the overall construction efficiency.

[0041] After the roof construction is completed and the insulation layer 7 has dried, the closing baffle 2 can be put into the second state to prevent moisture from entering the insulation layer 7 due to the influence of the external environment.

[0042] During the building's service life, when moisture accumulates on the roof due to factors such as indoor infiltration, or during dry seasons such as autumn, the baffle 2 is in its first state to accelerate the expulsion of moisture from the insulation layer 7 and improve the dryness inside the roof insulation layer 7 through gas exchange. During the rainy season and humid weather, the baffle 2 is actively switched to its second state to prevent moisture from the humid air from entering the roof insulation layer 7.

[0043] This utility model controls the opening and closing of the ventilation vent body 1 to ensure the dryness of the roof structure, avoid various damages from water vapor, effectively extend the service life of the roof insulation and waterproofing, reduce the maintenance cost of the building, extend the building's service life, reduce the number of roof repairs, save maintenance materials, and reduce resource consumption, making the building's life cycle greener, more energy-efficient, and more environmentally friendly.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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 ventilation opening switch structure for roof insulation layer, characterized in that, The device includes a vent body (1), which is inserted into an exhaust duct (71). The vent body (1) and the exhaust duct (71) are shaped to match. An air inlet (10) is provided at the outer end of the vent body (1). Baffles (2) are horizontally rotatably connected to both sides of the inner cavity of the vent body (1) via pivots. The baffles (2) are controlled to rotate by a switch assembly (3), so that the baffles (2) have a first state and a second state. In the first state, the baffle (2) rotates to a horizontal position, and the exhaust duct (71) connects to the outside through the inner cavity of the vent body (1). In the second state, the baffle (2) rotates to a vertical state, and the baffle (2) isolates the inner cavity of the ventilation port body (1), and the exhaust duct (71) is disconnected from the outside.

2. The roof insulation layer ventilation opening switch structure according to claim 1, characterized in that, The switch assembly (3) includes a mounting tube (4), a pull rope (31), and a positioning pin (32). The lower end of the mounting tube (4) is fixed on the vent body (1). The inner cavity of the mounting tube (4) is connected to the inner cavity of the vent body (1). One end of the pull rope (31) is connected and fixed to a rotating end of the baffle (2). The other end of the pull rope (31) extends into the inner cavity of the mounting tube (4) and is connected and fixed to the positioning pin (32). The upper end of the mounting tube (4) is provided with a first positioning hole (41) and a second positioning hole (42) along the height direction. When the positioning pin (32) is inserted into the first positioning hole (41), the baffle (2) rotates to the first state. When the positioning pin (32) is inserted into the second positioning hole (42), the baffle (2) rotates to the second state.

3. The roof insulation layer ventilation opening switch structure according to claim 1, characterized in that, A reset counterweight (21) is provided on one rotating end of the baffle (2). After the positioning pin (32) of the reset counterweight (21) is disengaged from the second positioning hole (42), the reset counterweight (21) drives the baffle (2) to rotate from the second state to the first state under the action of gravity.

4. The roof insulation layer ventilation opening switching structure according to claim 2, characterized in that, The upper end of the mounting tube (4) is inverted U-shaped. The upper end of the mounting tube (4) is equipped with a switch handle (5) that slides up and down. The bottom of the switch handle (5) extends downward from the upper end of the mounting tube (4). The positioning pin (32) is set on the switch handle (5). The pull rope (31) is connected and fixed to the switch handle (5).

5. The roof insulation layer ventilation opening switch structure according to claim 4, characterized in that, The switch handle (5) is provided with a mounting groove (51). The mounting groove (51) is provided with a connecting pin (33), a guide rod (34) and a reset spring (35). The outer end of the guide rod (34) is connected and fixed to the inner end of the connecting pin (33). The reset spring (35) is sleeved on the guide rod (34). The inner end of the positioning pin (32) is connected and fixed to the outer end of the connecting pin (33). The reset spring (35) abuts against the bottom surface of the mounting groove (51). The elastic force of the reset spring (35) causes the outer end of the positioning pin (32) to extend out of the mounting groove (51) and insert into the first positioning hole (41) or the second positioning hole (42) or abut against the inner wall of the mounting tube (4).

6. The roof insulation layer ventilation opening switch structure according to claim 5, characterized in that, The switch handle (5) is also provided with a pin handle (6). The middle part of the pin handle (6) is rotatably connected to the switch handle (5) through a rotating shaft (60). The upper end of the pin handle (6) is provided with a slot (61) and a slide (62). The slide (62) and the slot (61) are connected. The bottom of the connecting pin (33) extends downward to the connecting part (36). The connecting part (36) is inserted into the slot (61). The connecting part (36) is rotatably connected to the actuating shaft (63) that passes through the slide (62). The lower end of the pin handle (6) extends to the upper end of the mounting tube (4). When the lower end of the pin handle (6) is rotated, the upper end of the pin handle (6) drives the connecting pin (33) to move inward and compress the reset spring (35), so that the positioning pin (32) is disengaged from the first positioning hole (41) or the second positioning hole (42).

7. The roof insulation layer ventilation opening switch structure according to claim 1, characterized in that, A limiting part (22) is provided on the inner cavity of the vent body (1) or the baffle (2). After the limiting part (22) is rotated to the second state, the limiting part (22) and the corresponding inner cavity of the vent body (1) or the baffle (2) abut against each other, and the baffle (2) can only rotate in the opposite direction to the first state.

8. The roof insulation layer ventilation opening switch structure according to claim 2, characterized in that, The installation tube (4) has a guide part (43) at the bend and at the connection between the installation tube (4) and the vent body (1). The guide part (43) restricts the position of the pull rope (31) and guides the pull rope (31) to turn.

9. The roof insulation layer ventilation opening switching structure according to claim 2, characterized in that, The upper end of the installation pipe (4) extends to the top surface of the roof.

10. The roof insulation layer ventilation opening switch structure according to claim 9, characterized in that, The installation pipe (4) is embedded in the wall (8), and the upper end of the installation pipe (4) extends out from the inner side of the wall (8).

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