Ventilator

Abstract

This invention relates to a ventilator, specifically to the field of building insulation ventilation technology. Compared with existing technologies, this invention utilizes a non-toothed area of ​​a transmission wheel that abuts against the first end face of the elongated hole of a swing arm, while the toothed area hooks the swing arm. The rotation of the transmission wheel drives the swing arm to rotate and swing, causing the other end of the swing arm to move relative to the frame, thus driving the frame to rotate and switch between closed and open ventilation states. Furthermore, through the engagement of the toothed area with a transmission rack, the open fan and frame are in a closed state, with the swing arm hooked onto a transmission lock rod. The rotation of the rotating wheel drives the swing arm to move linearly; the swing arm drives the transmission lock rod to move, achieving locking and unlocking between the drive lock point and the lock seat. This invention achieves the ventilation opening / closing and locking functions of the ventilator through a continuous engagement structure of the swing arm and transmission wheel, reducing the number of parts, lowering manufacturing costs, and making operation more convenient. In case of power failure or mechanical malfunction, emergency manual unlocking and operation are also possible.

Description

Technical Field

[0001] This invention relates to the field of building insulation and ventilation technology, and in particular to a ventilator. Background Technology

[0002] In recent years, aluminum ventilation devices have emerged in the fields of building curtain walls, doors and windows, and interior partitions. The movable fan for ventilation is a long and narrow aluminum profile. These ventilation devices can be installed vertically, horizontally, or at any time. When opened, they provide micro-ventilation; when closed, they block ventilation and use thermally broken insulation material to prevent heat conduction.

[0003] Most of these aluminum ventilation devices are manually operated with switches and locks. Occasionally, a chain-type window opener is installed for electric operation. However, these electric aluminum ventilation devices require two different drive devices to achieve ventilation opening and closing functions and locking functions, resulting in high manufacturing costs and numerous and complicated parts. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a ventilator.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] According to the present invention, a ventilator includes a frame, an opening fan, and a concealed hinge. The opening fan is rotatably connected to the frame via the concealed hinge. The opening fan rotates around the pivot of the concealed hinge and switches between a closed state and an open ventilation state with the frame.

[0007] The ventilator also includes a drive wheel, a swing arm, and a drive locking rod. The drive wheel is rotatably connected to the openable fan along a rotation axis parallel to the fan's axis of rotation, and its periphery includes a toothed area and a non-toothed area. The swing arm has an elongated hole along its length, and a drive rack on one long side of the hole engages with the toothed area for transmission. The drive wheel is the driving wheel, and the swing arm is the driven member. The drive locking rod is slidably connected to the openable fan along a rotation direction perpendicular to the fan's axis of rotation. The swing arm and the drive locking rod can be hooked together, and the drive locking rod can be slidably connected to the frame. When the toothed area engages with the drive rack, the openable fan and the frame are in a closed state, the swing arm is hooked onto the drive locking rod, and the rotation of the drive wheel drives the swing arm to move linearly. The swing arm drives the drive locking rod to slide linearly, thereby driving the drive locking rod to slide linearly between the frame and the frame to further achieve locking and unlocking.

[0008] The elongated hole is located at one end of the swing arm, and a first end face is formed at the end of the elongated hole near the swing arm. The other end of the swing arm is movably connected to the frame along the frame surface direction. When the non-toothed area abuts against the first end face, the toothed area hooks the swing arm, which is used to drive the swing arm to rotate and swing when the transmission wheel rotates. The other end of the swing arm moves relative to the frame, thereby driving the opening fan to rotate around the hidden hinge and open and close with the frame.

[0009] Compared with the prior art, this invention achieves ventilation opening and closing functions and locking functions of the ventilator through a continuous engagement structure of the non-toothed area of ​​the transmission wheel against the first end face of the elongated hole of the swing rod. The toothed area hooks the swing rod, and the rotation of the transmission wheel drives the swing rod to rotate and swing. The other end of the swing rod moves relative to the frame, realizing the rotation between the frame and the opening fan. The opening fan switches between closed and open ventilation states through rotation with the frame. In addition, through the engagement of the toothed area and the transmission rack, the opening fan is in a closed state with the frame, and the swing rod is hooked to the transmission lock rod. The rotation of the rotating wheel drives the swing rod to move linearly. The swing rod drives the transmission lock rod to move, realizing the locking and unlocking between the transmission lock rod and the frame. This invention can realize the ventilation opening and closing function and locking function of the ventilator through a continuous engagement structure of the swing rod and the transmission wheel, reducing the number of parts, simplifying the structure, reducing manufacturing costs, and making operation more convenient. Moreover, the opening angle of the opening fan can be increased through the transmission of the toothed area and the transmission rack.

[0010] Preferably, the transmission locking rod is equipped with a connecting post, and the swing rod has a first baffle and a second baffle arranged along its length. A receiving space is formed between the first baffle and the second baffle to accommodate the connecting post, so that when the opening fan and the frame are in the closed state, the connecting post is located in the receiving space, realizing the connection between the swing rod and the transmission locking rod; when the swing rod moves in a straight line, the first baffle and the second baffle at both ends of the receiving space can push and pull the connecting post, further pushing and pulling the transmission locking rod and the frame to achieve linear sliding displacement for further unlocking and locking.

[0011] Preferably, the transmission locking rod includes a first transmission section and a second transmission section. The first transmission section is located on the side of the opening fan near the swing arm, and the second transmission section is located on the opening side of the opening fan. The first transmission section is connected to the second transmission section via an angle actuator. The second transmission section and the first transmission section are set at a preset angle on the opening fan. The connecting post is located on the first transmission section, and the second transmission section is equipped with a locking point. The frame is equipped with a locking seat that cooperates with the locking point. The displacement of the connecting post and the locking point is the same. The connecting post drives the transmission locking rod to further drive the locking point to make a linear movement due to the pushing and pulling of the first and second baffles on the swing arm. When locking, the locking point is aligned with the locking seat, and when unlocking, it is offset from the locking seat.

[0012] Preferably, the preset angle includes 90 degrees, and the locking points are set in multiple locations along the length of the second transmission segment.

[0013] Preferably, the outer periphery of the opening fan can be embedded in the inner edge of the frame; the other end of the swing rod is hinged to a slider, a first sliding groove is formed on the inner edge of the frame to slide and cooperate with the slider, and a second sliding groove is formed on the outer periphery of the opening fan to slide and cooperate with the transmission lock rod.

[0014] Preferably, the first sliding groove is provided around the inner edge of the frame, and the second sliding groove is provided around the outer periphery of the opening fan; the hidden hinge is fixed to the frame by the first sliding groove near the side where the rotation axis is located, the hidden hinge is fixed to the opening fan by the second sliding groove near the side where the rotation axis is located, and at least two hidden hinges can be provided along the rotation axis.

[0015] And / or, the inner edge of the frame and / or the outer perimeter of the opening fan are provided with sealing strips and / or heat insulation strips.

[0016] Preferably, the ventilator further includes a guide plate for cooperating with the swing arm to achieve a rotating swing action, the guide plate including a base plate, a protrusion block and a rotating guide block;

[0017] The protruding block and the rotating guide block are fixed on the base plate. The outer back surface of the first end face of the swing rod is a rotating arc surface. When the non-toothed area abuts against the first end face, the center of the rotating arc surface is the center of the transmission wheel. The rotating arc surface can slide against the protruding block and the rotating guide block. The protruding block and the rotating guide block abut against the rotating arc surface to guide the swing rod to rotate. Rotating the rotating wheel drives the swing rod to rotate and swing.

[0018] The guide plate is also used to cooperate with the swing arm to achieve linear movement. The guide plate also includes a guide wall fixed on the base plate. The wall surface of the guide wall is in the same direction as the linear movement direction of the swing arm. The outer back of the transmission rack on the swing arm has a contact surface for sliding against the guide wall. When the contact surface abuts against the guide wall, the guide wall restricts the swing arm's rotation and swing, thereby guiding the swing arm to move linearly.

[0019] Preferably, the rotating guide block has a guide arc surface. When the non-tooth area abuts against the first end face, the rotating arc surface fits against the guide arc surface, and the guide arc surface and the rotating arc surface are concentric.

[0020] The rotating guide block is also fixedly connected to the guide wall. One end of the guide arc surface is connected to the wall surface of the guide wall. The tangential direction of the position where the guide arc surface connects to the guide wall is consistent with the direction of the wall surface of the guide wall. The rotating arc surface is connected to the abutting surface. The tangential direction of the position where the rotating arc surface connects to the abutting surface is the direction of the abutting surface.

[0021] The opening fan is fixed with a guide post for assisting the swing arm to move in a straight line, and an auxiliary baffle is formed on the side of the swing arm away from the guide wall, which slides and abuts against the guide post.

[0022] When the non-toothed area abuts against the first end face, the protrusion is located outside the rotating arc surface and is tangent to the outside of the rotating arc surface; the rotating arc surface is provided with a notch for the protrusion to pass through. When the abutting surface abuts against the guide wall, the protrusion is facing the notch. When the swing rod moves in a straight line, the protrusion passes through the notch.

[0023] Compared with the prior art, in the present invention, when the transmission wheel abuts against the first end face, the rotating arc surface of the swing arm end is in contact with the guide arc surface on the guide plate, which can ensure the correctness of the swing arm's rotation and swing and prevent the swing arm from malfunctioning. In addition, when the abutting surface of the swing arm abuts against the guide wall on the guide plate, it can restrict and guide the swing arm to move in a straight line, ensuring the stability of the swing arm's straight line movement.

[0024] Preferably, the ventilator further includes a drive unit hidden in the openable fan. The center of the transmission wheel is provided with a single flat shaft hole. The transmission wheel is sleeved on the single flat output shaft of the drive unit through the single flat shaft hole. The transmission wheel and the single flat output shaft are concentric, so that the drive unit acts as a power output source to drive the transmission wheel to rotate synchronously. The rotation of the transmission wheel drives the swing arm to move.

[0025] The drive unit is equipped with a manually unlocked conical transmission gear, and the opening fan is provided with a first unlocking hole for the unlocking tool to pass through. The unlocking tool is connected to the conical transmission gear through the first unlocking hole and then through a second unlocking hole reserved on the drive unit, so as to realize the emergency unlocking rotation of the single flat output shaft in the event of power failure or mechanical failure.

[0026] Preferably, the frame and the opening fan are made of opaque metal. Attached Figure Description

[0027] Figure 1 This is a front view of the invention in its closed state;

[0028] Figure 2 This is a top view of the invention in its open state;

[0029] Figure 3a This is an external view of the swing arm of the present invention;

[0030] Figure 3b This is a view of the swing arm of the present invention from another angle;

[0031] Figure 4 This is an external view of the incomplete gear of the present invention;

[0032] Figure 5 This is an external view of the guide plate of the present invention;

[0033] Figure 6 This is a diagram showing the mutual rotation of the assembly structure and exploded structure of the rocker arm, half gear, guide plate, and geared motor in this invention;

[0034] Figure 7 This is a diagram showing the relative positions of the various transmission components in this invention;

[0035] Figure 8 This is an exploded view of the assembly of each transmission component in this invention;

[0036] Figure 9 This is a rear view of the invention in its closed state;

[0037] Figure 10 This is a bottom view of the invention in its open state;

[0038] Figure 11 This is a schematic diagram of the manual emergency unlocking rotation unlocking tool insertion and removal conversion of the drive unit in this invention.

[0039] Reference numerals: 1. Rocker arm; 101. Elongated hole; 102. Transmission rack; 103. First end face; 104. Abutment surface; 105. Rotating arc surface; 106. Notch; 107. Sunken step; 108. First baffle; 109. Second baffle; 110. Auxiliary baffle; 2. Transmission wheel; 201. Toothed area; 202. Non-toothed area; 203. Single flat shaft hole; 204. Overlapping edge; 3. Guide plate; 301. Base plate; 302. Guide wall; 303. Protrusion; 304. Rotating guide block; 305. Concave arc surface; 306. Guide arc surface; 4. 1. Drive unit; 401. Output shaft end face; 402. Single flat output shaft; 403. Internal threaded hole; 5. Countersunk screw; 6. Flat washer; 7. Pan head screw; 8. Lock seat; 9. Locking point; 10. Transmission lock rod; 1001. First transmission section; 1002. Second transmission section; 11. Angle drive; 12. Guide post; 13. Slider; 14. Sealing strip; 15. Heat insulation strip; 16. First unlocking hole; 17. Unlocking tool; 18. Frame; 19. Opening fan; 20. Concealed hinge; 21. Connecting post; 22. Conical transmission gear; 23. Second unlocking hole. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0041] This specification discloses a ventilator through its embodiments, such as... Figure 1 , Figure 2 as well as Figure 9 As shown, it includes a frame 18, an opening fan 19, and a hidden hinge 20. One side of the frame 18 is rotatably connected to one side of the opening fan 19 through the hidden hinge 20. The frame 18 is fixed, and the opening fan 19 rotates around the pivot of the hidden hinge 20 to switch between the closed state and the open ventilation state with the frame 18.

[0042] like Figure 2 , Figure 3a , Figure 3b as well as Figure 4As shown, the ventilator also includes a transmission wheel 2, a rocker arm 1, and a transmission locking rod 10; the transmission wheel 2 is rotatably connected to the openable fan 19 along a rotation axis parallel to the openable fan 19, and the outer periphery of the transmission wheel 2 includes a toothed area 201 and a non-toothed area 202; the rocker arm 1 has an elongated hole 101 along its length, and a transmission rack 102 that engages with the toothed area 201 on one long side of the elongated hole 101; the transmission wheel 2 is the driving wheel, and the rocker arm 1 is the driven member; the transmission locking rod 10 is perpendicular to the rotation direction of the openable fan 19. The upper part is slidably connected to the opening fan 19. The swing arm 1 and the connecting post 21 on the transmission lock rod 10 can be hooked together. The transmission lock rod 10 and the frame 18 can be slidably connected. When the toothed area 201 and the transmission rack 102 are engaged, the opening fan 19 and the frame 18 are in a closed state. The swing arm 1 is hooked on the transmission lock rod 10. The rotation of the rotating wheel drives the swing arm 1 to move linearly. The swing arm 1 drives the transmission lock rod 10 to slide linearly, thereby realizing the linear sliding displacement between the transmission lock rod 10 and the frame 18 to further realize the locking and unlocking. Among them, the frame 18, the opening fan 19, and the transmission lock rod 10 can all be made of aluminum. The locking point 9 can be made of stainless steel. The toothed area 201 and the transmission rack 102 can be meshing gears. The swing arm 1 and the transmission lock rod 10 are disengaged when the ventilation is open. The linear movement direction of the swing arm 1 is perpendicular to the rotation direction of the opening fan 19.

[0043] An elongated hole 101 is provided at one end of the swing arm 1, and a first end face 103 is formed at the end of the elongated hole 101 near the swing arm 1. The other end of the swing arm 1 is movably connected to the frame 18 along the frame surface direction of the frame 18. When the non-toothed area 202 abuts against the first end face 103, the toothed area 201 hangs on the swing arm 1, and the rotation of the transmission wheel 2 drives the swing arm 1 to rotate and swing. The other end of the swing arm 1 moves relative to the frame 18, thereby driving the opening fan 19 to rotate around the hidden hinge 20 and open and close with the frame 18.

[0044] In one embodiment, such as Figure 2 , Figure 3a , Figure 3b as well as Figure 10 As shown, a connecting post 21 is mounted on the transmission lock rod 10. A first baffle 108 and a second baffle 109 are arranged along the length of the swing rod 1. A receiving space for accommodating the connecting post 21 is formed between the first baffle 108 and the second baffle 109, realizing the connection between the swing rod 1 and the transmission lock rod 10. When the swing rod 1 moves in a straight line, the first baffle 108 and the second baffle 109 at both ends of the receiving space can push and pull the connecting post 21, and further push and pull the transmission lock rod 10 and the frame 18 to realize the unlocking and locking.

[0045] In one embodiment, such as Figure 7 , Figure 8As shown, the transmission locking rod 10 includes a first transmission section 1001 and a second transmission section 1002. The first transmission section 1001 is located on the side of the opening fan 19 near the swing arm 1, and the second transmission section 1002 is arranged on the opening side of the opening fan 19. The first transmission section 1001 is connected to the second transmission section 1002 through an angle transmission device 11. The second transmission section 1002 and the first transmission section 1001 are set at a preset angle on the opening fan 19. The connecting post 21 is located on the first transmission section 1001, and the second transmission section 1002 is equipped with a locking point 9. The frame 18 is equipped with a lock seat 8 that cooperates with the locking point 9. The displacement of the connecting post 21 and the locking point 9 is the same. The connecting post 21 drives the transmission locking rod 10 to further drive the locking point 9 to make a linear movement due to the pushing and pulling of the first stop wall 108 and the second stop wall 109 on the swing arm 1. When locking, the locking point 9 is aligned with the lock seat 8, and when unlocking, it is offset from the lock seat 8. The opening edge is parallel to the rotation axis, and the first transmission section 1001 and the second transmission section 1002 are located in the second sliding groove on the outer periphery of the opening fan.

[0046] In one embodiment, the preset angle includes 90 degrees, and the locking points 9 can be uniformly set in multiples along the length direction of the second transmission segment 1002, for example, two or more.

[0047] In one embodiment, the outer periphery of the opening fan 19 can be embedded within the inner edge of the frame 18; the other end of the swing rod 1 is hinged to a slider 13, and a first sliding groove is formed on the inner edge of the frame 18 to slide and connect with the slider 13; the lock seat 8 is fixed in the first sliding groove of the frame away from the rotation axis; a second sliding groove is formed on the outer periphery of the opening fan 19 to slide and cooperate with the transmission lock rod 10. Both the first sliding groove and the second sliding groove are C-shaped grooves.

[0048] In one embodiment, such as Figure 2 As shown, the first sliding groove is provided around the inner edge of the frame 18, and the second sliding groove is provided around the outer periphery of the opening fan 19; the hidden hinge 20 is fixed to the frame 18 by the first sliding groove near the side where the rotation axis is located, and the hidden hinge 20 is fixed to the opening fan 19 by the second sliding groove near the side where the rotation axis is located, and at least two hidden hinges 20 can be provided along the rotation axis; and / or, the inner edge of the frame 18 and / or the outer periphery of the opening fan 19 are provided with sealing strips 14 and / or heat insulation strips 15.

[0049] In one embodiment, such as Figure 5 , Figure 6 as well as Figure 11 As shown, the ventilator also includes a guide plate 3 for cooperating with the swing arm 1 to achieve a rotating swing action. The guide plate 3 includes a base plate 301, a protrusion 303, and a rotating guide block 304.

[0050] The protrusion 303 and the rotating guide block 304 are fixed on the base plate 301. The outer back of the first end face 103 on the rocker arm 1 is a rotating arc surface 105. When the non-toothed area 202 abuts against the first end face 103, the center of the rotating arc surface 105 is the center of the transmission wheel 2. The rotating arc surface 105 can slide against the protrusion 303 and the rotating guide block 304. The maximum central angle formed by the positions of the protrusion 303 and the rotating guide block 304 abutting against the rotating arc surface 105 and the center of the rotating arc surface 105 is greater than 90 degrees and less than 180 degrees, so that the protrusion 303 and the rotating guide block 304 abut against the rotating arc surface 105 to provide rotational guidance for the rocker arm 1, and rotating the rotating wheel to drive the rocker arm 1 to rotate and swing. The maximum central angle is, for example, 135 degrees.

[0051] The guide plate 3 is also used to cooperate with the swing arm 1 to achieve linear movement. The guide plate 3 also includes a guide wall 302 fixed on the base plate 301. The wall surface of the guide wall 302 is in the same direction as the linear movement direction of the swing arm 1. The outer back of the transmission rack 102 on the swing arm 1 is formed with an abutment surface 104 for sliding against the guide wall 302. When the abutment surface 104 abuts against the guide wall 302, the guide wall 302 restricts the swing arm 1 to rotate and swing, thereby guiding the swing arm 1 to move linearly.

[0052] In one embodiment, the rotating guide block 304 has a guide arc surface 306, the center of which is the center of the rotating wheel. When the non-tooth region 202 abuts against the first end face 103, the rotating arc surface 105 is in contact with the guide arc surface 306. The guide arc surface 306 and the rotating arc surface 105 are concentric. The guide arc surface 306 also plays a rotational guiding role when the rocker arm 1 rotates. The rotating arc surface 105 is, for example, a semi-circular surface, which slides in contact with the arc surface.

[0053] The rotating guide block 304 is also fixedly connected to the guide wall 302. One end of the guide arc surface 306 is connected to the wall surface of the guide wall 302. The tangential direction of the position where the guide arc surface 306 connects to the guide wall 302 is the direction of the wall surface of the guide wall 302. The rotating arc surface 105 connects to the abutment surface 104. The tangential direction of the position where the rotating arc surface 105 connects to the abutment surface 104 is the direction of the abutment surface 104.

[0054] A guide post 12 is fixed on the opening fan 19 to assist the swing arm 1 in linear movement. An auxiliary baffle 110 is formed on the side of the swing arm 1 away from the guide wall 302, which slides and abuts against the guide post 12. The guide post 12 is installed on the opening fan 19 through a bottom plate, and the plate is bolted to the opening fan 19.

[0055] like Figure 3bAs shown, when the non-tooth region 202 abuts against the first end face 103, the protrusion 303 is located on the side of the rotating arc surface 105 away from the rocker arm 1 in the linear movement direction, that is, the protrusion 303 is located on the outer side of the rotating arc surface 105 and is tangent to the outer side of the rotating arc surface 105; the rotating arc surface 105 is provided with a notch 106 for the protrusion 303 to pass through. When the abutting surface 104 abuts against the guide wall 302, the protrusion 303 passes through the notch 106 relative to the rocker arm 1 when the rocker arm 1 moves linearly. The shape of the notch 106 can be square. The notch 106 is located in the center of the rotating arc surface 105.

[0056] In one embodiment, such as Figure 1 , Figure 2 , Figure 11 As shown, the ventilator also includes a drive unit 4 hidden in the openable fan 19. The center of the transmission wheel 2 is provided with a single flat shaft hole 203. The transmission wheel 2 is sleeved on the single flat output shaft 402 of the drive unit 4 through the single flat shaft hole 203 and fixed with pan head screws 7 and flat washers 6. The transmission wheel 2 and the single flat output shaft 402 are concentric, so that the drive unit 4 acts as a power output source to drive the transmission wheel 2 to rotate synchronously. The rotation of the transmission wheel 2 drives the swing arm 1 to move.

[0057] The drive unit 4 is equipped with a manually unlocked conical transmission gear 22, and the opening fan 19 is provided with a first unlocking hole 16 for the unlocking tool 17 to pass through. The unlocking tool 17 is connected to the conical transmission gear 22 through the first unlocking hole 16 and then through the second unlocking hole 23 reserved on the drive unit 4, so as to realize the emergency manual unlocking rotation of the single flat output shaft 402 in the event of power failure or mechanical failure.

[0058] In one embodiment, the transmission wheel 2 is an incomplete gear, the toothed area 201 is the area with gears on its periphery, and the non-toothed area 202 is the area without gears on its periphery. The teeth of the arc-shaped toothed area are arranged around the central axis of the incomplete gear; the central angle of the toothed area is 210 degrees; the toothless area forms an arc surface around the central axis of the incomplete gear, and the central angle of the toothless area is 150 degrees; the teeth of the rack structure are arranged along the length direction of the rocker arm 1. And / or, when the toothless area abuts against the first end face 103, the teeth at one end of the toothed area engage and hook with the teeth at one end of the rack structure, and the teeth at the other end of the toothed area rest on the sinking step 107 on the slide rod.

[0059] The outer periphery of the incomplete gear consists of a 210° arc-shaped toothed area and a 150° toothless area, so that the toothed area and the toothless area together form the outer circumference of the incomplete gear; in addition, the central axis of the incomplete gear is perpendicular to the length direction of the rocker arm 1. The incomplete gear acts as the driving gear, driving the driven rack structure, which in turn drives the rocker arm 1 to move. The incomplete gear is a specially shaped half gear, or it can be a structure that is half toothed and half toothless. The end of the elongated hole 101 away from the rocker arm 1 has a second end face. When the toothless area abuts against the second end face, the teeth at the other end of the toothed area engage with the teeth at the other end of the rack structure. A sliding surface is formed on the other long side of the elongated hole 101, and the sliding surface is slidably connected to the toothless area of ​​the incomplete gear.

[0060] In one embodiment, the protrusion 303 has a concave arc surface 305, and the centers of the concave arc surface 305 and the guide arc surface 306 are the same. When the toothless region abuts against the first end face 103, the rotating arc surface 105 also fits against the concave arc surface 305. The central axes of the concave arc surface 305, the guide arc surface 306, and the rotating arc surface 105 are all the central axes of the incomplete gear.

[0061] In one embodiment, the base plate 301 is fixed to the output shaft end face 401 of the drive unit 4 by countersunk screws 5. The rocker arm 1 abuts against the base plate 301. A recessed step 107 corresponding to the toothless area is formed at the edge of the elongated hole 101 away from the hole edge of the base plate 301. There is an overlapping edge 204 above the toothless area. The overlapping edge 204 overlaps and matches the recessed step 107. The top of the single flat output shaft 402 has an internal threaded hole 403. The overlapping edge 204 is threaded and pressed against the recessed step 107 by pan head screws 7 passing through flat washers 6 and threadedly connected to the internal threaded hole 403, so as to press the rocker arm 1 and prevent the rocker arm 1 from detaching from the base plate 301. The drive unit 4 is a geared motor.

[0062] In one embodiment, the frame 18 and the opening fan 19 are made of opaque metal, typically aluminum alloy.

[0063] The electric aluminum ventilation device of the present invention includes an aluminum frame 18, an aluminum openable fan 19, a geared motor, a concealed hinge 20, an angle transmission device 11, an aluminum transmission locking rod 10, a stainless steel locking point 9, a lock seat 8, a half gear, a swing arm 1, a guide plate 3, a guide post 12, a nylon slider 13, a sealing strip 14, a heat insulation strip 15, a manual first unlocking hole 16, and a special unlocking tool 17. The aluminum frame 18, the aluminum openable fan 19, and the concealed hinge 20 constitute an openable aluminum ventilation device. Adding the geared motor and other components to this constitutes an electrically operated aluminum ventilation device. Specifically, installing the geared motor, half gear, swing arm 1, guide plate 3, guide post 12, and nylon slider 13 constitutes an electrically operable aluminum ventilation device.

[0064] This aluminum ventilation system has a narrow and long shape. It can be opened for ventilation and closed to isolate air and heat exchange. It also has an electric multi-point locking system to enhance safety and sealing when closed. All these functions and actions can be completed by a single geared motor.

[0065] Figure 1 The shape is in the closed state, wherein the manual first unlocking hole 16 and the dedicated unlocking tool 17 are used for emergency opening in case of power failure or malfunction.

[0066] Figure 2 The diagram shows the exterior in the open state, where the concealed hinge 20 serves as a rotating axis connecting the aluminum frame 18 and the aluminum opening sash 19, and the lever 1 is used to perform the locking / unlocking and opening / closing actions.

[0067] Figure 4 The middle half gear is a specially designed gear, with one half of its outer circumference having teeth and the other half being toothless.

[0068] Figure 3a and Figure 3b The middle swing arm 1 has a long, waist-shaped hole, and one side of the hole has a rack structure with the same module as the half gear. Figure 5 The guide plate 3 is a guide structure customized according to the shape of the rocker arm 1.

[0069] Figure 3a , Figure 3b , Figure 4 and Figure 5 The combination of the three parts will cause the rocker arm 1 to produce two different actions: swinging and linear movement. When the half gear is at the top of the rocker arm 1, rotating the half gear will cause the rocker arm 1 to rotate and swing around the center of the half gear under the guidance and constraint of the guide plate 3. When the half gear is in other positions of the rocker arm 1, rotating the half gear will cause the rocker arm 1 to move linearly under the guidance and constraint of the guide plate 3 and the guide post 12.

[0070] Figure 7 This describes the relative positions of the various transmission components. The arc-shaped structure on the guide plate 3 aligns with the outer circle of the end of the rocker arm 1 during opening and closing, guiding the rotation of the rocker arm 1 to prevent malfunctions and ensuring that the aluminum opening fan 19 opens and closes along the correct trajectory. In the closed state, the guide plate 3 and guide post 12 are in close contact with the edge of the rocker arm 1, guiding and restricting the rocker arm 1 to move linearly only along the C-shaped groove of the aluminum opening fan 19. This linear movement is precisely the action required for the multi-point locking system to unlock and lock.

[0071] In this embodiment, the angle actuator 11, aluminum transmission lock rod 10, stainless steel locking point 9, and lock seat 8 used on the aluminum operable sash 19 are all standard hardware components in the door and window industry. These components constitute a standard multi-point locking system for locking and unlocking functions between the aluminum operable sash 19 and the aluminum frame 18. A stainless steel connecting post 21 next to the angle actuator 11 is located in the middle of the double-row baffle structure of the swing rod 1 when closed. It is this double-row baffle structure that enables the multi-point locking system to perform unlocking and locking actions when the swing rod 1 moves linearly along the C-shaped groove in the closed state.

[0072] The nylon slider 13 is located in the C-groove of the aluminum frame 18 and is hinged to the small end of the rocker arm 1. Each lock seat 8 is also installed in the C-groove of the aluminum frame 18, corresponding to its respective stainless steel locking point 9.

[0073] Both the aluminum frame 18 and the aluminum opening fan 19 have C-grooves. A geared motor is concealed within the aluminum opening fan 19 and is connected to a rocker arm 1 via a half-gear mounted on the top output shaft of the geared motor. The other end of the rocker arm 1 is hinged to a nylon slider 13 located within the C-grooves on the aluminum frame 18. When the half-gear is at the far end of the rocker arm 1, it engages with the rocker arm 1. Simultaneously, the arc-shaped structure on the guide plate 3 fixed to the top end face of the geared motor matches the outer circle of the rocker arm 1's end, guiding and restricting the rocker arm 1 to only rotate. At this time, the geared motor's clockwise or counterclockwise rotation will cause the rocker arm 1 to swing clockwise or counterclockwise, thus realizing the opening and closing of the aluminum opening fan 19.

[0074] In addition to opening and closing the aluminum ventilator 19, the geared motor also locks the aluminum ventilator 19 onto the aluminum frame 18 and unlocks it. A corresponding number of stainless steel locking points 9 and locking seats 8 are configured on the opening side according to the size of the aluminum ventilation device. The stainless steel locking points 9 are fixed to the aluminum transmission locking rod 10. The aluminum transmission locking rod 10 is fitted into the C-groove on the aluminum ventilator 19 and can slide within the C-groove. The aluminum transmission locking rods 10 on different sides are connected by angle actuators 11 installed at the corners of the aluminum ventilator 19, forming a multi-point locking system. The movement displacement of all the stainless steel locking points 9 is consistent. Each stainless steel locking point 9 on the corresponding opening side is equipped with a locking seat 8 on the aluminum frame 18. In the closed state, the stainless steel locking point 9 aligns with the corresponding locking seat 8 to prevent the aluminum opening fan 19 from being forcibly opened by external force, thus achieving a locking function. When the stainless steel locking point 9 in the multi-point locking system moves and is misaligned with the corresponding locking seat 8, the aluminum opening fan 19 is in the unlocked state and can proceed to the next opening action. In the closed state, the double-row baffle structure on the swing arm 1 hooks onto a connecting post 21 on the side of the angle transmission 11. At this time, the geared motor rotates clockwise or counterclockwise, causing the teeth on the half gear to interact with the rack on the swing arm 1. Under the guidance and constraint of the guide plate 3 and the guide post 12, the swing arm 1 can only move linearly above the C-shaped groove on the aluminum opening fan 19, thereby driving the multi-point locking system to move to the left or right along the C-shaped groove on the aluminum opening fan 19, realizing the locking and unlocking actions.

[0075] Using only one set of geared motors combined with accessories such as half gears, rocker arm 1, guide plate 3 and guide column 12, the two functions of electric opening / closing of aluminum opening fan 19 and electric unlocking / locking of multi-point locking system are realized.

[0076] The sealing of the electric aluminum ventilation device after it is closed is achieved by sealing strips 14 on the aluminum frame 18 and the aluminum opening fan 19, and the sealing strips 14 may be multiple.

[0077] The electric aluminum ventilation device can also be equipped with heat insulation strips 15 on the aluminum frame 18 and aluminum openable fan 19 to reduce and block heat exchange on both sides of the device. The heat insulation strip 15 is generally made of PA66+25%GF.

[0078] In the off state, in the event of a power outage or malfunction, the aluminum opening fan 19 can be opened via the manual first unlocking hole 16 using a dedicated unlocking tool 17.

[0079] Electric aluminum ventilation units are available in two mirror-symmetrical forms. They can be installed vertically, horizontally, or at any angle; they can be used on building exterior walls, interior partitions, and for industrial ventilation applications.

[0080] The electric aluminum ventilation device can be operated using switches, remote control, bus control, mobile APP and other control methods, and can return the actual operating status and fault information.

[0081] The electric aluminum ventilation device of this invention can not only be electrically opened and closed, but also electrically locked and unlocked to effectively enhance the sealing and security when closed. It can realize the transformation of the aluminum ventilation device from manual operation to electric control. It uses only one geared motor to realize both electric opening / closing and electric unlocking / locking functions. Compared with existing products and technologies that use two geared motors to perform electric switching and electric unlocking / locking respectively, it optimizes the structure and reduces costs. It is completely hidden in the installation, and there are no handles or other mechanical parts or geared motors exposed when closed, making it more concise and beautiful. It can realize multiple control methods such as switch, remote control, bus control, and mobile APP.

[0082] The main body of this invention is an aluminum structure, including an aluminum frame 18 and an aluminum opening fan 19, supplemented by a multi-point locking system, a geared motor, and other components such as a rocker arm 1, a half gear, a guide post 12, and a nylon slider 13, to achieve electric opening and closing and electric locking / unlocking functions. Its advantages over similar products are: 1. Manual operation is upgraded to electric operation; 2. The opening / closing of the opening fan 19 and the locking / unlocking of the multi-point locking system can be completed by a single geared motor, optimizing the structure and reducing costs; 3. Completely concealed installation, simple and aesthetically pleasing.

[0083] This invention relates to ventilation in building exterior walls or interior partitions and other industrial and mining enterprises, specifically to an electrically operable aluminum ventilation device or vent. The electric aluminum ventilation device of this invention solves the problem of mismatch between traditional chain window openers and operable sashes 19 in terms of both applicability and aesthetics. For example, in terms of applicability, the installation location and space are limited, and it cannot be opened to 90°; in terms of aesthetics, the protruding chain after opening obstructs the view. This invention provides designers and users with a more convenient and aesthetically pleasing control option.

[0084] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A ventilator characterized by, The ventilation device comprises a frame (18), an opening fan (19) and a hidden hinge (20), the opening fan (19) is rotatably connected to the frame (18) through the hidden hinge (20), and the opening fan (19) rotates around the rotation shaft of the hidden hinge (20) to switch between the closed state and the opening ventilation state with the frame (18); The ventilation device further comprises a transmission wheel (2), a swing lever (1) and a transmission lock lever (10), the transmission wheel (2) is rotatably connected to the opening fan (19) along the rotation axis of the opening fan (19), and the periphery of the transmission wheel (2) comprises a tooth area (201) and a non-tooth area (202); the swing lever (1) is provided with a long hole (101) along the length direction of the swing lever (1), one side of the long hole (101) is provided with a transmission rack (102) matched with the tooth area (201) for transmission; the transmission wheel (2) is a driving wheel, and the swing lever (1) is a driven part; the transmission lock lever (10) is slidably connected to the opening fan (19) along the direction perpendicular to the rotation direction of the opening fan (19), the swing lever (1) is hooked to the transmission lock lever (10), and the transmission lock lever (10) is slidably connected to the frame (18); when the tooth area (201) is matched with the transmission rack (102) for transmission, the opening fan (19) and the frame (18) are in a closed state, the swing lever (1) is hooked to the transmission lock lever (10), and the rotation of the transmission wheel drives the swing lever (1) to move linearly; the swing lever (1) drives the transmission lock lever (10) to slide linearly, so as to drive the linear sliding displacement between the transmission lock lever (10) and the frame (18) to further realize the unlocking and locking. The long hole (101) is arranged at one end of the swing lever (1), and a first end face (103) is formed at the end of the long hole (101) close to the swing lever (1); the other end of the swing lever (1) is movably connected to the frame (18) along the frame surface direction of the frame (18); when the non-tooth area (202) abuts against the first end face (103), the tooth area (201) hooks the swing lever (1), so that the rotation of the transmission wheel (2) drives the swing lever (1) to rotate and swing, the other end of the swing lever (1) moves relative to the frame (18), and the opening fan (19) is driven to rotate around the hidden hinge (20) to realize the opening and closing with the frame (18).

2. A ventilator according to claim 1, characterised in that The transmission lock rod (10) is provided with a connecting column (21), the swing rod (1) is provided with a first blocking wall (108) and a second blocking wall (109) along the length direction of the swing rod (1), and the first blocking wall (108) and the second blocking wall (109) form an accommodation space for accommodating the connecting column (21), so that the connecting column (21) is in the accommodation space when the opening fan (19) and the frame (18) are in the closed state, and the swing rod (1) is hooked with the transmission lock rod (10); when the swing rod (1) moves linearly, the first blocking wall (108) and the second blocking wall (109) at both ends of the accommodation space can push and pull the connecting column (21), further push and pull the transmission lock rod (10) and the frame (18) to realize linear sliding displacement, and further realize unlocking and locking.

3. A ventilator according to claim 2, characterised in that, The transmission lock rod (10) comprises a first transmission section (1001) and a second transmission section (1002), the first transmission section (1001) is arranged on the side of the opening fan (19) close to the swing rod (1), the second transmission section (1002) is arranged on the opening side of the opening fan (19), the first transmission section (1001) is connected with the second transmission section (1002) through an angle transmission device (11), the second transmission section (1002) and the first transmission section (1001) are arranged at a preset angle on the opening fan (19), the connecting column (21) is arranged on the first transmission section (1001), the second transmission section (1002) is provided with a locking point (9), the frame (18) is provided with a locking seat (8) matched with the locking point (9), the displacement of the connecting column (21) is consistent with the displacement of the locking point (9), the connecting column (21) is driven by the first blocking wall (108) and the second blocking wall (109) on the swing rod (1) to further drive the locking point (9) to move linearly, and the locking point (9) is aligned with the locking seat (8) when locking and is offset from the locking seat (8) when unlocking.

4. A ventilator according to claim 3, characterised in that The preset angle comprises 90 degrees, and the locking point (9) is arranged in multiple on the second transmission section (1002) along the length direction of the second transmission section (1002).

5. The ventilator according to any one of claims 1 to 4, characterized in that The outer periphery of the opening fan (19) is embedded in the inner frame of the frame (18); the other end of the swing rod (1) is hingedly provided with a sliding block (13), the inner frame of the frame (18) is formed with a first sliding groove matched with the sliding block (13) for sliding connection, and the outer periphery of the opening fan (19) is formed with a second sliding groove matched with the transmission lock rod (10) for sliding.

6. A ventilator according to claim 5, characterised in that, The first sliding groove is arranged around the inner edge of the frame (18), and the second sliding groove is arranged around the outer edge of the opening leaf (19); the hidden hinge (20) is fixed on the frame (18) through the first sliding groove close to the edge where the rotation axis is located, the hidden hinge (20) is fixed on the opening leaf (19) through the second sliding groove close to the edge where the rotation axis is located, and the hidden hinge (20) is arranged at least two along the rotation axis; And / or, the inner edge of the frame (18) and / or the outer edge of the opening leaf (19) are provided with sealing strips (14) and / or heat insulation strips (15).

7. The ventilator according to any one of claims 1 to 4, wherein The ventilation device further comprises a guide plate (3) for cooperating with the swing rod (1) to realize the rotating swing action, the guide plate (3) comprises a bottom plate (301), a protruding block (303) and a rotating guide block (304); the protruding block (303) and the rotating guide block (304) are fixed on the bottom plate (301), an outer back surface of the first end surface (103) of the swing rod (1) is a rotating arc surface (105), in a state where the non-tooth area (202) abuts against the first end surface (103), a center of the rotating arc surface (105) is the center of the transmission wheel (2), and the rotating arc surface (105) is slidably abutted against the protruding block (303) and the rotating guide block (304); the protruding block (303) and the rotating guide block (304) abut against the rotating arc surface (105) to rotate and guide the swing rod (1), and the transmission wheel is rotated to drive the swing rod (1) to rotate and swing; The guide plate (3) is also used for cooperating with the swing rod (1) to realize the linear movement action, the guide plate (3) further comprises a guide wall (302) fixed on the bottom plate (301), a wall surface direction of the guide wall (302) is the same as a linear movement direction of the swing rod (1), and an outer back surface of the transmission rack (102) on the swing rod (1) is formed with an abutting surface (104) for slidably abutting against the guide wall (302); when the abutting surface (104) abuts against the guide wall (302), the guide wall (302) restricts the rotating swing of the swing rod (1) so as to guide the swing rod (1) to move linearly.

8. A ventilator according to claim 7, characterised in that The rotating guide block (304) has a guide arc surface (306), in a state where the non-tooth area (202) abuts against the first end surface (103), the rotating arc surface (105) is attached to the guide arc surface (306), and the guide arc surface (306) is concentric with the rotating arc surface (105); The rotating guide block (304) is also fixedly connected to the guide wall (302), one end of the guide arc surface (306) is connected to the wall surface of the guide wall (302), the tangent direction of the position where the guide arc surface (306) is connected to the guide wall (302) is consistent with the wall surface direction of the guide wall (302), and the rotating circular arc surface (105) is connected to the abutting surface (104), and the tangent direction of the position where the rotating circular arc surface (105) is connected to the abutting surface (104) is the direction of the abutting surface (104); The opening fan (19) is fixed with a guide column (12) for assisting the swing lever (1) to move linearly, and the side, away from the guide wall (302), of the swing lever (1) is formed with an auxiliary blocking wall (110) which is matched with the guide column (12) to slide and abut; In the state that the non-tooth area (202) abuts against the first end surface (103), the protruding block (303) is located outside the rotating circular arc surface (105) and is tangent to the outside of the rotating circular arc surface (105); the rotating circular arc surface (105) is provided with a gap (106) for the protruding block (303) to pass through, when the abutting surface (104) abuts against the guide wall (302), the protruding block (303) is opposite to the gap (106), and when the swing lever (1) moves linearly, the protruding block (303) passes through the gap (106).

9. The ventilator according to any one of claims 1 to 4, wherein The ventilator further comprises a driving unit (4) which is hiddenly installed in the opening fan (19), the center of the transmission wheel (2) is provided with a single flat shaft hole (203), the transmission wheel (2) is sleeved on a single flat output shaft (402) of the driving unit (4) through the single flat shaft hole (203), and the transmission wheel (2) is concentric with the single flat output shaft (402), so that the driving unit (4) serves as a power output source to drive the transmission wheel (2) to rotate synchronously, and the rotation of the transmission wheel (2) drives the swing lever (1) to move; The driving unit (4) is internally provided with a conical transmission gear (22) which is manually unlocked, the opening fan (19) is provided with a first unlocking hole (16) for an unlocking tool (17) to pass through, the unlocking tool (17) is first passed through the first unlocking hole (16) and then passed through a second unlocking hole (23) reserved on the driving unit (4) to be in transmission connection with the conical transmission gear (22), so that the single flat output shaft (402) is manually unlocked and rotated in an emergency in the case of power failure or mechanical failure.

10. The ventilator according to any one of claims 1 to 4, wherein The frame (18) and the opening fan (19) are made of opaque metal materials.

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