CN113803824B - Indoor ventilation equipment of controllable air volume - Google Patents
Indoor ventilation equipment of controllable air volume Download PDFInfo
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- CN113803824B CN113803824B CN202111227740.5A CN202111227740A CN113803824B CN 113803824 B CN113803824 B CN 113803824B CN 202111227740 A CN202111227740 A CN 202111227740A CN 113803824 B CN113803824 B CN 113803824B
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- indoor unit
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- bottom cover
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention relates to indoor ventilation equipment, in particular to indoor ventilation equipment with controllable ventilation volume. The air duct comprises an air duct, wherein a channel in the air duct is circular, a plurality of inlets are formed in the lower portion of the air duct, a baffle plate is arranged on each inlet, a bottom cover is arranged in each inlet, a straight rod is arranged above the bottom cover, an electric push rod is arranged above the straight rod and fixed in the air duct, a movable shaft of the electric push rod is fixedly connected with the straight rod, a through hole is formed in the ball, rotating shafts are arranged above and below the ball, the ball is provided with a plurality of inlets which are respectively located behind the inlets, and a transmission structure is respectively connected with the rotating shafts and the bottom cover and used for driving the ball to rotate.
Description
Technical Field
The invention relates to indoor ventilation equipment, in particular to indoor ventilation equipment with controllable ventilation volume.
Background
Indoor ventilation equipment can discharge indoor air, for some producers, the indoor ventilation equipment can be used for effectively reducing indoor dust content, in order to save electric power, different motor rotating speeds are adopted for different air dust contents, after the rotating speed of the motor is increased in the mode, the rotating speed of a fan is increased, the suction force transmitted from the ventilation pipeline is increased, but the inlet position of the pipeline is fixed, so that the increase of the adsorption capacity is not proportional to the increase of the effective dust collection area, namely the adsorption capacity is increased to a certain strength, and the absorption range of the inlet of the pipeline cannot be effectively increased.
Disclosure of Invention
The invention aims to provide indoor ventilation equipment with controllable ventilation quantity, and aims to solve the problem that the absorption capacity is increased disproportionately to the increase of effective dust absorption area due to the fact that the inlet position of a pipeline is fixed, namely the absorption range of the inlet of the pipeline cannot be effectively increased when the absorption capacity is enhanced to a certain strength.
In order to achieve the above object, there is provided an indoor ventilation device with controllable ventilation volume, comprising an indoor unit and an outdoor unit outside the indoor unit, wherein the indoor unit at least comprises:
the air duct is characterized in that a channel on the inner side of the air duct is circular, a plurality of inlets are formed below the air duct, baffles are arranged on the inlets, a bottom cover is arranged in each inlet, a straight rod is arranged above the bottom cover, an electric push rod is arranged above the straight rod and fixed in the air duct, a movable shaft of the electric push rod is fixedly connected with the straight rod, and a connecting port is formed in the tail end of the air duct;
the round balls are provided with through holes, the upper part and the lower part of each round ball are provided with rotating shafts, and the round balls are provided with a plurality of round balls which are respectively positioned behind the inlets;
the transmission structure is respectively connected with the rotating shaft and the bottom cover and is used for driving the ball to rotate;
the outdoor unit comprises a fan, and a pipeline is arranged behind the fan and is respectively connected with the fan and the connecting port.
When the indoor unit and the outdoor unit are used, after the fan is electrified, negative pressure is generated and is transmitted into the air channel through the pipeline, wherein the rotating speed sensor detects the rotating speed and is connected with the plurality of electric push rods, different electric push rods are controlled to extend along with the increase of the rotating speed, and the previous electric push rod is contracted; when the electric push rod is in a contraction state, the bottom cover is driven to move upwards firstly until the inlet is sealed, then the round ball is driven to rotate through the transmission structure so that the through hole is switched to a parallel state, the air duct is communicated with the inside of the air duct, and when the next inlet is opened, the opened inlet and the fan are in a smooth state.
As a further improvement of the technical scheme, a plurality of mounting rods are arranged above the air duct and are of rectangular block structures and used for enhancing the strength of the top of the air duct, and a plurality of bolts are connected to the upper portion of each mounting rod in a threaded mode.
As a further improvement of the technical scheme, the tail end of the through hole is provided with a screen, the side face of the air duct is provided with a dust exhaust port, and the dust exhaust port has the same shape and size as the through hole and is used for exhausting dust in 131.
As a further improvement of the technical scheme, a sealing plate is arranged behind the dust exhaust port, the sealing plate protrudes inwards and is used for blocking a gap between the dust exhaust port and the air duct, and the sealing plate is attached to the outer wall of the ball.
As a further improvement of the technical scheme, the dust discharge port is externally provided with a cover plate, the size of the cover plate is larger than that of the dust discharge port, the cover plate is used for sealing the dust discharge port, and the cover plate is hinged on the air channel.
As a further improvement of the technical scheme, a connecting block is arranged in front of the cover plate, a second bolt is connected to the connecting block in a threaded mode and penetrates through the connecting block, a threaded hole is formed in the air duct, and the second bolt is connected with the threaded hole in a threaded mode.
As a further improvement of the technical scheme, the transmission structure comprises a connecting rod, a guide wheel is arranged at the front end of the connecting rod, the tail end of the connecting rod is connected with the bottom cover, a connecting shaft is coaxially connected below the rotating shaft, an arc wire groove is formed in the connecting shaft, and the guide wheel is slidably connected in the arc wire groove.
As a further improvement of the technical scheme, the connecting rod is of an L-shaped structure, a rotating rod is arranged at the lower end of the connecting rod and penetrates through the lower end of the connecting rod, a nut is arranged behind the rotating rod, a guide wheel is connected to the rotating rod in a rotating mode, and the guide wheel is located in front of the connecting rod.
As a further improvement of the technical scheme, the connecting rod is provided with a reinforcing rib, the reinforcing rib is positioned at the upper half part of the connecting rod, and the reinforcing rib and the connecting rod form a triangular structure.
As a further improvement of the technical scheme, a ring is arranged in front of the screen, a brush is arranged outside the ring, a guide rod is arranged in front of the ring, a limiting block is arranged at the tail end of the guide rod, a hanging plate is arranged above the inner side of the through hole, and the guide rod is connected in the hanging plate in a sliding mode.
Compared with the prior art, the invention has the beneficial effects that:
1. in this indoor ventilation equipment of controllable air volume, through the open mode of the electric putter control a plurality of entries that set up, specific rotational speed along with the fan increases, and a plurality of entries are opened in proper order, and the entry of different positions has different effective ventilation scope, the indoor ventilation efficiency who increases on the whole, has avoided air pipe overlength to lead to the not good problem of ventilation effect simultaneously.
2. Among this indoor ventilation equipment of controllable air volume, through the through-hole on the transmission structure humidity ball that sets up can be followed and switched to vertical state with the parallel state in wind channel to seal the latter half section of entry, reduce the working length in wind channel, promote ventilation effect.
3. In the indoor ventilation equipment with the controllable ventilation volume, through the arranged screen, when the inlet absorbs dust-containing air, the inlet enters the inlet and penetrates through the through hole, then the dust is filtered by the screen, the dust is left in the through hole, when the through hole is switched to a vertical state, the front end of the through hole is communicated with the dust exhaust port, and the dust in the through hole can be collected through the dust exhaust port.
4. In the indoor ventilation equipment with controllable ventilation quantity, the guide rod is arranged to pull the circular ring to move back and forth in the through hole, and then dust is discharged from the through hole through the brush.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the present invention with the overall structure broken away;
FIG. 3 is a schematic view of the structure of the air duct portion of the present invention;
FIG. 4 is a schematic view of a portion of the structure of FIG. 3 at A;
FIG. 5 is a schematic cross-sectional view of the air duct of the present invention;
FIG. 6 is an enlarged view of a portion of the structure at B in FIG. 5;
FIG. 7 is a schematic view of the sphere structure of the present invention;
FIG. 8 is a schematic diagram of a cross-sectional structure of the sphere of the present invention;
FIG. 9 is a schematic view of the transmission of the present invention;
FIG. 10 is a schematic view of a connecting rod structure of the present invention;
FIG. 11 is a schematic view of a structural idler of the present invention.
The various reference numbers in the figures mean:
100. an indoor unit;
110. an air duct; 111. mounting a rod; 112. a first bolt; 113. a dust exhaust port; 114. a threaded hole; 115. an inlet; 116. a connecting port; 117. a sealing plate; 118. a baffle plate;
120. a cover plate; 121. connecting blocks; 122. a second bolt;
130. a ball; 131. a through hole; 132. a rotating shaft;
140. a transmission structure;
141. a connecting rod; 142. a guide wheel; 143. a bottom cover; 144. a connecting shaft; 145. an arc wire groove; 146. reinforcing ribs; 147. a rotating rod; 148. a nut;
150. a straight rod; 151. an electric push rod;
160. a guide bar; 161. a limiting block; 162. a circular ring; 163. a brush; 164. screening a screen; 165. a hanger plate;
200. an outdoor unit;
210. a fan; 211. a pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
Referring to fig. 1 to 11, there is provided an indoor ventilation device with controllable ventilation volume, including an indoor unit 100 and an outdoor unit 200 outside the indoor unit 100, wherein the indoor unit 100 at least includes:
the air duct 110 is circular, a plurality of inlets 115 are arranged below the air duct 110, a baffle 118 is arranged on each inlet 115 and used for limiting the movement range of the bottom cover 143, a bottom cover 143 is arranged in each inlet 115, a straight rod 150 is arranged above each bottom cover 143, an electric push rod 151 is arranged above each straight rod 150 and fixed in the air duct 110, a movable shaft of each electric push rod 151 is fixedly connected with each straight rod 150, and a connecting port 116 is arranged at the tail end of the air duct 110;
a plurality of round balls 130, wherein the round balls 130 are provided with through holes 131, the upper and lower parts of the round balls 130 are provided with rotating shafts 132, and the round balls 130 are respectively positioned at the rear of the inlet 115;
the transmission structure 140, the transmission structure 140 is respectively connected with the rotating shaft 132 and the bottom cover 143, and is used for driving the round ball 130 to rotate;
the outdoor unit 200 comprises a fan 210, the fan 210 comprises a motor, fan blades, a rotation speed sensor and the like, the motor drives the fan blades to rotate to generate negative pressure, the rotation speed sensor is used for detecting the rotation speed of the motor, a pipeline 211 is arranged behind the fan 210, and the pipeline 211 is respectively connected with the fan 210 and the connecting port 116; when the electric push rod 151 is in the contracted state, the bottom cover 143 is first driven to move upwards until the inlet 115 is sealed, and then the transmission structure 140 drives the round ball 130 to rotate so that the through hole 131 is switched to the parallel state, so that the inside of the air duct 110 is communicated, and when the next inlet 115 is opened, the opened inlet 115 and the fan 210 are in the unblocked state.
In addition, in order to fix the air duct 110 conveniently, a plurality of mounting rods 111 are arranged above the air duct 110, the mounting rods 111 are rectangular block-shaped structures and used for enhancing the strength of the top of the air duct 110, a plurality of first bolts 112 are connected above the mounting rods 111 in a threaded manner, keels can be erected in advance, and then the mounting rods 111 are connected to the keels through the first bolts 112 so that the air duct 110 can be fixed on a roof.
Further, in order to clean dust in the air duct 110, the end of the through hole 131 is provided with a screen 164, the side of the air duct 110 is provided with a dust exhaust port 113, the shape and size of the dust exhaust port 113 and the through hole 131 are the same, and the dust exhaust port is used for exhausting dust in the through hole 131, when the inlet 115 absorbs air containing dust, the air enters from the inlet 115 and passes through the through hole 131, then the air is filtered by the screen 164, the dust is left in the through hole 131, when the through hole 131 is switched to the vertical state, the front end of the through hole 131 is communicated with the dust exhaust port 113, and the dust in the through hole 131 can be collected through the dust exhaust port 113.
Furthermore, in order to reduce the gap between the round ball 130 near the dust exhaust port 113 after the dust exhaust port 113 is opened, a sealing plate 117 is disposed behind the dust exhaust port 113, the sealing plate 117 protrudes inward to block the gap between the dust exhaust port 113 and the air duct 110, the sealing plate 117 is attached to the outer wall of the round ball 130, and the gap between the air duct 110 and the round ball 130 after the dust exhaust port 113 is opened is reduced by the attached sealing plate 117.
Specifically, in order to further promote sealing performance, avoid dust exhaust port 113 to leak gas, dust exhaust port 113 is equipped with apron 120 outward, and the size of apron 120 is greater than dust exhaust port 113's size for seal dust exhaust port 113, apron 120 articulates on wind channel 110, can make dust exhaust port 113 close in order to reach promotion sealing performance through apron 120 through articulated structure.
In addition, in order to avoid accidental opening of the closed cover plate 120, a connecting block 121 is arranged in front of the cover plate 120, a second bolt 122 is connected to the connecting block 121 in a threaded mode, the second bolt 122 penetrates through the connecting block 121, a threaded hole 114 is formed in the air duct 110, the second bolt 122 is connected with the threaded hole 114 in a threaded mode, the cover plate 120 can be fixed to the outer side of the air duct 110 by tightening the second bolt 122, preferably, a rubber sealing ring is arranged on the inner side of the cover plate 120, and sealing performance is further improved by extrusion deformation in the screwing process of the second bolt 122.
Further, the transmission structure 140 includes a connection rod 141, a guide wheel 142 is disposed at the front end of the connection rod 141, the tail end of the connection rod 141 is connected to the bottom cover 143, a connection shaft 144 is coaxially connected to the lower portion of the rotation shaft 132, an arc-shaped slot 145 is disposed on the connection shaft 144, the guide wheel 142 is slidably connected to the arc-shaped slot 145, when the bottom cover 143 moves down, the guide wheel 142 is driven to slide in the arc-shaped slot 145, the connection shaft 144 is guided to rotate through the arc-shaped slot 145, so as to drive the round ball 130 to rotate, and the vertical movement of the electric push rod 151 is converted into the rotation of the round ball 130.
Still further, in order to conveniently overhaul guide wheel 142, connecting rod 141 is the L type structure, and the lower extreme of connecting rod 141 is equipped with bull stick 147, and bull stick 147 passes the lower extreme of connecting rod 141, and the bull stick 147 rear is equipped with nut 148, rotates on the bull stick 147 and is connected with guide wheel 142, and guide wheel 142 is located connecting rod 141 the place ahead, and guide wheel 142 is conveniently dismantled and installed through connecting rod 141 of L type, conveniently overhauls and change accessories after long-time operation.
In addition, in order to improve the connection strength of the connection rod 141, a rib 146 is provided on the connection rod 141, the rib 146 is located at the upper half portion of the connection rod 141, the rib 146 and the connection rod 141 form a triangular structure, and the connection rod 141 and the rib 146 form a triangular structure to improve the strength of the connection rod 141.
In addition, in order to clean dust in the through hole 131 conveniently, a circular ring 162 is arranged in front of the screen 164, a brush 163 is arranged outside the circular ring 162, a guide rod 160 is arranged in front of the circular ring 162, a limit block 161 is arranged at the tail end of the guide rod 160, a hanging plate 165 is arranged above the inner side of the through hole 131, the guide rod 160 is connected in the hanging plate 165 in a sliding mode, the circular ring 162 can be pulled to move back and forth in the through hole 131 through the guide rod 160, and then the dust is discharged from the through hole 131 through the brush 163.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an indoor ventilation equipment of controllable air volume which characterized in that: the outdoor unit (200) is arranged outside the indoor unit (100) and the indoor unit (100), and the indoor unit (100) at least comprises:
the air duct (110), the inner side channel of the air duct (110) is circular, a plurality of inlets (115) are arranged below the air duct (110), a baffle (118) is arranged on each inlet (115), a bottom cover (143) is arranged in each inlet (115), a straight rod (150) is arranged above each bottom cover (143), an electric push rod (151) is arranged above each straight rod (150), each electric push rod (151) is fixed in the air duct (110), a movable shaft of each electric push rod (151) is fixedly connected with the corresponding straight rod (150), and a connecting port (116) is arranged at the tail end of the air duct (110);
the outdoor unit comprises a plurality of round balls (130), wherein through holes (131) are formed in the round balls (130), rotating shafts (132) are arranged on the upper and lower sides of the round balls (130), the round balls (130) are multiple, and each round ball (130) is arranged on one side, away from the outdoor unit (200), of an inlet (115) adjacent to the round ball (130);
the transmission structure (140), the transmission structure (140) is respectively connected with the rotating shaft (132) and the bottom cover (143) and is used for driving the ball (130) to rotate;
the outdoor unit (200) comprises a fan (210), a pipeline (211) is arranged behind the fan (210), and the pipeline (211) is respectively connected with the fan (210) and the connecting port (116);
when the electric push rod (151) is in an extension state, the straight rod (150) and the bottom cover (143) are pushed to move downwards, the downward moving bottom cover (143) enables the inlet (115) to be opened and is matched with the fan (210) to conduct indoor ventilation, meanwhile, the downward moving bottom cover (143) drives the transmission structure (140) to operate so as to drive the round ball (130) behind the inlet (115) to rotate, the through hole (131) in the round ball (130) is switched to a vertical state from a parallel state with the air duct (110), and therefore the rear half section of the inlet (115) is sealed; when the electric push rod (151) is in a contraction state, the bottom cover (143) is driven to move upwards until the inlet (115) is sealed, and then the round ball (130) is driven to rotate through the transmission structure (140) so that the through hole (131) is switched to a parallel state.
2. A controlled ventilation indoor unit as claimed in claim 1, wherein: a plurality of mounting rods (111) are arranged above the air duct (110), each mounting rod (111) is of a rectangular block structure and used for enhancing the strength of the top of the air duct (110), and a plurality of bolts (112) are connected to the upper portion of each mounting rod (111) in a threaded mode.
3. A controlled ventilation indoor unit as claimed in claim 1, wherein: the tail end of the through hole (131) is provided with a screen (164), the side face of the air duct (110) is provided with a dust exhaust port (113), and the dust exhaust port (113) is the same as the through hole (131) in shape and size and is used for exhausting dust in the through hole (131).
4. A controlled ventilation indoor unit as claimed in claim 3, wherein: a sealing plate (117) is arranged behind the dust exhaust port (113), the sealing plate (117) protrudes inwards and is used for blocking a gap between the dust exhaust port (113) and the air duct (110), and the sealing plate (117) is attached to the outer wall of the round ball (130).
5. A controlled ventilation indoor unit as claimed in claim 3, wherein: a cover plate (120) is arranged outside the dust exhaust port (113), the size of the cover plate (120) is larger than that of the dust exhaust port (113) and used for sealing the dust exhaust port (113), and the cover plate (120) is hinged to the air duct (110).
6. The controllable ventilation indoor unit as claimed in claim 5, wherein: a connecting block (121) is arranged in front of the cover plate (120), a second bolt (122) is connected to the connecting block (121) in a threaded manner, the second bolt (122) penetrates through the connecting block (121), a threaded hole (114) is formed in the air duct (110), and the second bolt (122) is connected with the threaded hole (114) in a threaded manner.
7. A controlled ventilation indoor unit as claimed in claim 1, wherein: the transmission structure (140) comprises a connecting rod (141), a guide wheel (142) is arranged at the front end of the connecting rod (141), the tail end of the connecting rod (141) is connected with the bottom cover (143), a connecting shaft (144) is coaxially connected below the rotating shaft (132), an arc-shaped groove (145) is formed in the connecting shaft (144), and the guide wheel (142) is slidably connected in the arc-shaped groove (145).
8. The indoor ventilating apparatus with a controlled ventilating amount according to claim 7, wherein: the connecting rod (141) is of an L-shaped structure, a rotating rod (147) is arranged at the lower end of the connecting rod (141), the rotating rod (147) penetrates through the lower end of the connecting rod (141), a nut (148) is arranged behind the rotating rod (147), a guide wheel (142) is connected to the rotating rod (147) in a rotating mode, and the guide wheel (142) is located in front of the connecting rod (141).
9. The controllable ventilation indoor unit as claimed in claim 8, wherein: the connecting rod (141) is provided with a reinforcing rib (146), the reinforcing rib (146) is positioned at the upper half part of the connecting rod (141), and the reinforcing rib (146) and the connecting rod (141) form a triangular structure.
10. A controlled ventilation indoor unit as claimed in claim 3, wherein: the novel screen cloth is characterized in that a circular ring (162) is arranged in front of the screen cloth (164), a brush (163) is arranged on the outer side of the circular ring (162), a guide rod (160) is arranged in front of the circular ring (162), a limiting block (161) is arranged at the tail end of the guide rod (160), a hanging plate (165) is arranged above the inner side of the through hole (131), and the guide rod (160) is connected in the hanging plate (165) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227740.5A CN113803824B (en) | 2021-10-21 | 2021-10-21 | Indoor ventilation equipment of controllable air volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227740.5A CN113803824B (en) | 2021-10-21 | 2021-10-21 | Indoor ventilation equipment of controllable air volume |
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| Publication Number | Publication Date |
|---|---|
| CN113803824A CN113803824A (en) | 2021-12-17 |
| CN113803824B true CN113803824B (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111227740.5A Active CN113803824B (en) | 2021-10-21 | 2021-10-21 | Indoor ventilation equipment of controllable air volume |
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