Indoor ventilation system

Abstract

The utility model belongs to the field of exhaust systems, and particularly relates to an indoor ventilation system which comprises exhaust devices, two exhaust devices used for exhausting and sucking air are arranged on a wall, each exhaust device comprises a pipeline, one end of each pipeline is arranged on the wall in a penetrating mode, a baffle is arranged at the other end of each pipeline in a sliding mode, and a ventilation opening is formed in the axis of each pipeline in the length direction. A blade part is arranged at one end, close to the baffle, in the ventilation opening, a mud blocking device is slidably arranged at one end, close to the wall, in the ventilation opening, the blade part is meshed with a transmission device, the transmission device is meshed with the baffle and connected with the mud blocking device, and the baffle is unfolded upwards to facilitate ventilation when the blade part rotates; meanwhile, the mud blocking device vibrates in a reciprocating mode to prevent dust accumulation.

Description

Technical Field

[0001] This application belongs to the field of ventilation systems, and particularly relates to an indoor ventilation system. Background Technology

[0002] Currently, some cities experience smog and sandstorms during winter, resulting in high levels of dust in the air. If this air enters indoors directly, it can lead to a high level of dust concentration. Inhaling excessive amounts of dusty air can easily cause respiratory infections. Therefore, it is necessary to treat the air supplied indoors for dust removal. Filters are often used to filter dust, but excessive dust accumulation on filters can obstruct air circulation. Furthermore, even when the ventilation system is not in use, dust can still accumulate at the vents. Utility Model Content

[0003] The purpose of this invention is to provide an indoor ventilation system to solve the problems existing in the prior art. To achieve the above-mentioned objective, the technical solution adopted by this invention is as follows:

[0004] An indoor ventilation system includes an exhaust device. Two exhaust devices for exhaust and intake are respectively provided on the wall. Each exhaust device includes a pipe, one end of which is inserted through the wall, and the other end of which is slidably provided with a baffle. A vent is provided along the length of the pipe axis. A fan blade component is provided inside the vent near the baffle, and a mudguard is slidably provided inside the vent near the wall. The fan blade component engages with a transmission device, which engages with the baffle and is connected to the mudguard.

[0005] Furthermore, the fan blade component includes a cylindrical support box, a rotating rod passing through the axis of the support box, the rotating rod being rotatably connected to the support box, a motor being fixedly mounted on the support box, the output end of the motor being connected to one end of the rotating rod, and a fan blade being mounted on the end of the rotating rod near the baffle; multiple support rods are evenly arranged around the circumference of the support box, and the support rods are connected to the inner wall of the ventilation opening.

[0006] Furthermore, the pipe includes a square tube body. A cavity is provided along the length of one side of the tube body near the baffle. A connecting port is provided on the side wall of the vent, linking the cavity and the vent. A vertical groove is provided at the top of the end of the tube body away from the wall. The baffle is slidably mounted within the groove, and the baffle has teeth along its length. The portion of the rotating rod located within the support box has a bevel gear. A transmission rod is rotatably mounted within one of the support rods. One end of the transmission rod has a bevel gear, which meshes with the first bevel gear. The other end of the transmission rod passes through the connecting port and extends into the cavity. A gear is provided at one end of the transmission rod located within the cavity. A gear is rotatably mounted within the cavity. The first gear meshes with the second gear, and the second gear meshes with the teeth.

[0007] Furthermore, the side wall of the vent is provided with a sliding square hole that connects the cavity and the vent. A fixed block is provided on the side of the gear away from the transmission rod at a non-axial position. A sliding block is slidably provided in the sliding square hole. The fixed block and the sliding block are respectively rotatably connected to the two ends of the drive rod. The sliding block can slide in the horizontal direction. The sliding block is fixedly connected to the mudguard device.

[0008] Furthermore, a limiting ring is fixedly provided at one end of the vent near the wall, and multiple sliding grooves are evenly provided on the inner wall of the vent near the limiting ring; the mud-blocking device includes a fixed inner ring, a filter screen and a fixed outer ring connected in sequence by threads, multiple springs are evenly provided between the limiting ring and the fixed inner ring, and multiple fixed sliders are evenly provided on the circumference of the fixed inner ring, and the fixed sliders are slidably connected to the sliding grooves.

[0009] Furthermore, the bottom of the fixed outer ring is provided with a notch, and the bottom of the vent is provided with a dust collection port near the limiting ring, which is connected to a collection box located at the bottom of the pipe.

[0010] This invention has the following beneficial effects: When ventilation is needed, the fan blades are connected to a transmission device via gears. The transmission device drives gear two to rotate, and gear two drives the baffle to unfold, thus facilitating indoor and outdoor air circulation. After ventilation stops, the baffle automatically falls down to close the ventilation opening and prevent dust from accumulating inside. At the same time, the transmission device drives the mudguard device to vibrate back and forth, causing the dust on it to fall off and preventing dust accumulation from affecting air circulation. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the device;

[0012] Figure 2 It is a 3D diagram of the pipeline;

[0013] Figure 3 This is an exploded view of the fan blade components;

[0014] Figure 4 This is a cross-sectional view of the exhaust system;

[0015] Figure 5 This is a 3D view of the interior of the exhaust system;

[0016] Figure 6 This is an exploded view of the mudguard device;

[0017] Pipe 1, Pipe body 101, Slide groove 102, Cavity 103, Sliding square hole 104, Limiting ring 105, Sliding groove 106, Ash outlet 107, Connecting outlet 108, Collection box 109, Baffle 110, Tooth 111, Ventilation outlet 112, Fan blade assembly 2, Fan blade 201, Rotating rod 202, Bevel tooth 1 203, Support box 204, Support rod 205, Motor 206, Mud-blocking device 3, Fixed outer ring 301, Notch 3011, Filter screen 302, Fixed inner ring 303, Fixed slider 3031, Spring 304, Bevel tooth 2 401, Transmission rod 402, Gear 1 403, Gear 2 404, Fixed block 405, Drive rod 406, Sliding block 407, Wall 5. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0019] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] like Figure 1-6As shown, an indoor ventilation system includes an exhaust device. Two exhaust devices for exhaust and intake are provided on a wall 5, respectively. The exhaust device includes a pipe 1, one end of which is inserted through the wall 5, and the other end is slidably provided with a baffle 110. A vent 112 is provided along the length of the pipe 1. A fan blade component 2 is provided in the vent 112 near the baffle 110. A mudguard device 3 is slidably provided in the vent 112 near the wall 5. The fan blade component 2 engages with a transmission device, the transmission device engages with the baffle 110, and the transmission device is connected to the mudguard device 3. When the fan blade 201 rotates under the drive of the motor 206, it drives the gear 403 to rotate. At the same time, the gear 403 rotates, which drives the meshing gear 404 to rotate. The gear 404 rotates counterclockwise, which drives the baffle 110 to move upward (when the gear 404 stops rotating, the baffle 110 will move downward under its own gravity). While the gear 403 rotates, the fixed block 405 rotates around the axis of the gear 403, that is, one end of the drive rod 406 rotates around the axis of the gear 403. Since the other end of the drive rod 406 is rotatably connected to the sliding block 407 and the sliding block 407 can only move horizontally, the rotation of the gear 403 will drive the sliding block 407 to move horizontally. The sliding block 407 drives the mudguard device 3 to move horizontally and reciprocate (which can be regarded as horizontal vibration). The dust on the filter screen 302 falls off with the vibration to the notch 3011 and then slides into the collection box 109. Two exhaust devices are provided, one for drawing in outside air and the other for expelling indoor air. The fan blades 201 of the two exhaust devices rotate in opposite directions. The cavity 103 of the exhaust device that expels air has an additional gear 3. Gear 1 403 meshes with gear 2 404, gear 2 404 meshes with gear 3, and gear 3 meshes with gear 111, so that when both exhaust devices are working, the baffle 110 can be raised, allowing the vent 112 to connect to the outside.

[0021] like Figure 3 As shown, the fan blade component 2 includes a cylindrical support box 204, the axis of which coincides with the axis of the vent 112. A rotating rod 202 passes through the axis of the support box 204, and the rotating rod 202 is rotatably connected to the support box 204. A motor 206 is fixedly mounted on the support box 204, and the output end of the motor 206 is connected to one end of the rotating rod 202. A fan blade 201 is provided at the end of the rotating rod 202 near the baffle 110. A plurality of support rods 205 are evenly arranged around the circumference of the support box 204. The support rods 205 are connected to the inner wall of the vent 112 and provide support. Preferably, there are four support rods 205, one of which is horizontally arranged to facilitate communication with the vertically arranged cavity 103 (e.g., Figure 2 (As shown).

[0022] like Figure 2 , 4 As shown, the pipe 1 includes a square pipe body 101. A cavity 103 is provided along the length of one side of the pipe body 101 near the baffle 110. The cavity 103 is arranged vertically as shown in the diagram. Figure 2 As shown, either the left or right side is acceptable. The sidewall of the vent 112 has a connecting opening 108 that connects the cavity 103 and the vent 112. The top of the pipe body 101, away from the wall 5, has a vertically arranged groove 102. A baffle 110 is slidably arranged within the groove 102. The baffle 110 has teeth 111 along its length, meaning the teeth 111 are vertically arranged (e.g., ...). Figure 4 (As shown); the portion of the rotating rod 202 located inside the support box 204 is provided with a bevel tooth 203. A transmission rod 402 is rotatably provided inside the support rod 205. One end of the transmission rod 402 is provided with a bevel tooth 401, which meshes with the bevel tooth 203. The other end of the transmission rod 402 passes through the connecting port 108 and extends into the cavity 103. One end of the transmission rod 402 located inside the cavity 103 is provided with a gear 403. A gear 404 is rotatably provided inside the cavity 103. The gear 403 meshes with the gear 404, and the gear 404 meshes with the tooth 111. This device provides another implementation that can increase the vibration frequency of the mud-blocking device 3 to achieve a better dust removal effect. A small gear (with a rotational speed much higher than that of gear 403) can be meshed next to gear 403. The fixing block 405 is set on the small gear (not at the axial position), so that the reciprocating frequency of the sliding block 407 is faster (i.e., the vibration frequency is higher).

[0023] like Figure 2 , 4 As shown, the side wall of the vent 112 is provided with a sliding square hole 104 that connects the cavity 103 and the vent 112. The sliding square hole 104 is a horizontal elongated hole. A fixing block 405 is provided on the side of the gear 403 away from the transmission rod 402 at a non-axial position. That is, the fixing block 405 will rotate around its axis when the gear 403 rotates. The length of the fixing block 405 from the axis is set according to the requirements. A sliding block 407 is slidably provided in the sliding square hole 104. The fixing block 405 and the sliding block 407 are respectively rotatably connected to the two ends of the drive rod 406. The sliding block 407 can slide in the horizontal direction. The sliding block 407 is fixedly connected to the mudguard device 3.

[0024] A limiting ring 105 is fixedly provided at one end of the vent 112 near the wall 5. Multiple sliding grooves 106 are evenly distributed on the inner wall of the vent 112 near the limiting ring 105. The mud-blocking device 3 includes a fixed inner ring 303, a filter screen 302, and a fixed outer ring 301 connected by threads in sequence. Multiple springs 304 are evenly distributed between the limiting ring 105 and the fixed inner ring 303. Multiple fixed sliders 3031 are evenly distributed circumferentially on the fixed inner ring 303. The fixed sliders 3031 are slidably connected to the sliding grooves 106. The springs 304 provide force when the sliding block 407 moves (providing either pushing or resisting force during the process, such as...). Figure 4 As shown, the spring 304 in this device is in a fully stretched state throughout its movement. The sliding block 407 provides resistance when moving to the right and provides propulsion when moving to the left. Other situations depend on the state of the spring 304 (those skilled in the art can deduce this themselves, so it will not be elaborated upon). This slows down the rotation of the gear 403, creating a stuttering descent. Overall, this slows down the descent of the baffle 110, preventing it from falling too quickly and causing impact damage to the slide groove 102. The elastic coefficient of the spring 304 should not be too large, ensuring that the baffle 110 completely covers the vent 112 after it falls. The limiting ring 105 can be threaded for easy removal, and the mudguard device 3 can be removed for replacement or cleaning of the filter screen 302.

[0025] like Figure 6 As shown, the fixed outer ring 301 has a notch 3011 at its bottom, and the vent 112 has a dust collection port 107 at its bottom near the limiting ring 105. The dust collection port 107 is connected to a collection box 109 located at the bottom of the pipe body 101. The dust collection port 107 can be designed with a large top diameter and a small bottom diameter to facilitate the sliding of dust and prevent it from accumulating in the vent 112.

[0026] Working principle: When indoor ventilation is needed, the exhaust device starts working. The fan blade 201 starts rotating, driving the bevel gear 401 and gear 403 to rotate. Gear 403 drives gear 404 to rotate, thereby causing the baffle 110 to unfold upward. At the same time, gear 403 drives the drive rod 406 to drive the mudguard device 3 to reciprocate (vibrate), causing the dust on the filter screen 302 to fall off. When the fan blade 201 stops rotating, the baffle 110 falls down due to its own weight, closing the vent 112 to prevent dust from entering.

[0027] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. An indoor ventilation system, characterized by: The exhaust device is arranged on the wall (5) and includes a pipe (1) which is arranged through the wall (5) at one end and is provided with a baffle (110) at the other end which is slidable, an air vent (112) is arranged along the length direction of the axis of the pipe (1), a fan blade part (2) is arranged in the air vent (112) near the baffle (110), a mud blocking device (3) is arranged in the air vent (112) near the wall (5), the fan blade part (2) is engaged with a transmission device, the transmission device is engaged with the baffle (110), and the transmission device is connected with the mud blocking device (3).

2. An indoor ventilation system according to claim 1, characterized in that The fan blade part (2) includes a cylindrical support box (204) which is provided with a rotating rod (202) arranged through the axis, the rotating rod (202) is rotatably connected with the support box (204), a motor (206) is fixedly arranged on the support box (204), the output end of the motor (206) is connected with one end of the rotating rod (202), and a fan blade (201) is arranged on one end of the rotating rod (202) near the baffle (110); a plurality of support rods (205) are uniformly arranged on the circumference of the support box (204) and are connected with the inner wall of the air vent (112).

3. An indoor ventilation system according to claim 2, characterized in that The pipe (1) includes a square pipe body (101) which is provided with a cavity (103) on one side near the baffle (110) along the length direction, a communication port (108) is arranged on the side wall of the air vent (112) and communicates with the cavity (103) and the air vent (112), a sliding groove (102) is vertically arranged on the top of the pipe body (101) away from the wall (5), the baffle (110) is arranged in the sliding groove (102) and is slidable, the baffle (110) is provided with a tooth part (111) along the length direction; the part of the rotating rod (202) located in the support box (204) is provided with a bevel gear one (203), one of the support rods (205) is rotatably provided with a transmission rod (402), the transmission rod (402) is provided with a bevel gear two (401) at one end, the bevel gear two (401) is engaged with the bevel gear one (203), the transmission rod (402) extends into the cavity (103) through the communication port (108), one end of the transmission rod (402) located in the cavity (103) is provided with a gear one (403), a gear two (404) is rotatably arranged in the cavity (103), the gear one (403) is engaged with the gear two (404), and the gear two (404) is engaged with the tooth part (111).

4. An indoor ventilation system according to claim 3, characterized in that: The sliding square hole (104) which communicates the cavity (103) and the ventilation opening (112) is arranged on the side wall of the ventilation opening (112), the gear one (403) is provided with a fixed block (405) at a position away from the non-axle center of one side of the transmission rod (402), the sliding square hole (104) is slidably provided with a sliding block (407), the fixed block (405) and the sliding block (407) are respectively rotatably connected to the two ends of the drive rod (406), the sliding block (407) can slide in the horizontal direction, and the sliding block (407) is fixedly connected with the mud blocking device (3).

5. An indoor ventilation system according to claim 1, characterized in that: The limiting ring (105) is fixedly arranged in the ventilation opening (112) close to one end of the wall (5), a plurality of sliding grooves (106) are uniformly arranged on the inner wall of the ventilation opening (112) close to the limiting ring (105), the mud blocking device (3) comprises a fixed inner ring (303), a filter screen (302) and a fixed outer ring (301) which are sequentially threadedly connected, a plurality of springs (304) are uniformly arranged between the limiting ring (105) and the fixed inner ring (303), and a plurality of fixed sliding blocks (3031) are uniformly arranged in the circumferential direction of the fixed inner ring (303); the fixed sliding blocks (3031) are slidably connected with the sliding grooves (106).

6. An indoor ventilation system according to claim 5, characterized in that The fixed outer ring (301) is provided with a notch (3011) at the bottom, the ventilation opening (112) is provided with an ash falling opening (107) at the position close to the limiting ring (105) at the bottom, and the ash falling opening (107) is communicated with a collecting box (109) arranged at the bottom of the pipe body (101).

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