Ventilation pipeline steering machine

Abstract

The utility model discloses a ventilating duct steering machine, which belongs to the technical field of ventilating equipment structures and comprises a shell, an air outlet is arranged on the shell, a fan component is arranged in the shell, an air pipe is rotatably connected onto the fan component, an input end of the air pipe is communicated with the fan component, and an output end of the air pipe is communicated with the fan component. The output end of the air pipe faces the side where the air outlet is located. According to the scheme, the air outlet is formed in the ventilation conversion machine so that the indoor ventilation effect can be achieved, the fan assembly provides power for the ventilation conversion machine, and airflow conveying is achieved; the air pipe can be communicated with the fan assembly and the air outlet, and air flow in the fan assembly is conveyed to the air outlet to achieve the ventilation effect. The air pipe can rotate on the fan assembly, and the air pipe can be switched to any air outlet position by adjusting the angle of the air pipe through rotation; therefore, the air supply effect of different air outlets is achieved.

Description

Technical Field

[0001] The utility model relates to a ventilation device, more specifically, it relates to a ventilation duct steering machine. Background Art

[0002] Ventilation and exhaust devices are basically a kind of ventilation equipment that is necessary for indoor use. Existing ventilation and exhaust devices are generally equipped with multiple channels to ventilate as many areas as possible. However, as the number of ventilation ducts increases, the structure inside the ventilation device will become more complicated, the control method will also become more complicated, and issues such as power drive and cost consumption will affect the performance of the ventilation converter.

[0003] For example: Chinese patent announcement number CN219756656U, announcement date September 26, 2023, the name of the utility model is a multi-channel heater, and the application discloses a ventilation device, including a shell, a return air port, a first air outlet, a second air outlet and an air exchange port located between the first air outlet and the second air outlet on the shell. A duct cavity is also provided in the shell, as well as a first air duct switching component and a second air duct switching component located in the air duct cavity. The first air duct switching component and the air duct switching component cooperate to switch the air blown out by the heater; this scheme can effectively improve the efficiency of ventilation or heating, but the control method of this scheme is relatively complicated and prone to failure, which affects the user experience. Utility Model Content

[0004] The utility model overcomes the problems of complex structure and complex control mode of existing ventilation devices and provides a ventilation duct diverter. In this solution, the internal structure of the ventilation converter is relatively simple and can realize multi-channel air supply and exhaust.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a ventilation duct steering machine, comprising a shell, an air outlet is provided on the shell and a fan assembly is provided inside the shell, an air duct is rotatably connected to the fan assembly, the input end of the air duct is connected to the fan assembly, and the output end of the air duct faces the side where the air outlet is located. In this solution, the air outlet is provided on the ventilation converter to ventilate the room, the fan assembly provides power for the ventilation converter to achieve airflow transportation; the air duct can connect the fan assembly and the air outlet, and transport the airflow in the fan assembly to the air outlet to achieve ventilation; in this solution, one or more air outlets can be provided, and the air duct can be rotated on the fan assembly, and the air duct can be switched to any air outlet position by rotating and adjusting the angle of the air duct; thereby achieving the air supply effect of different air outlets.

[0006] Preferably, the fan assembly includes two fans, the output ends of the two fans are simultaneously connected to the input end of the air duct, and the output ends of the fans are provided with air guides. This solution uses two fans to work together, which can increase the ventilation volume of the ventilation converter and improve the ventilation efficiency; both fans are connected to the input end of the air duct, and the airflow in the two fans is guided into the air duct through the air guide to avoid the airflow collision at the output ends of the two fans and reduce the air supply effect.

[0007] Preferably, a rotating assembly is provided between the fan assembly and the air duct, and the rotating assembly includes a first gear and a second gear meshing with each other, the radius of the first gear is larger than the radius of the second gear, the first gear is fixedly connected to the air duct, and the second gear is provided on the fan assembly. The rotation of the air duct is achieved by the rotating assembly. Specifically, a first gear is fixed on the air duct, and a second gear is provided on the fan assembly. The air duct is driven to rotate by the meshing transmission of the first gear and the second gear, and the first gear is a large gear and the second gear is a small gear. Using a small gear to drive a large gear has a labor-saving effect, so that a motor with a smaller power can be selected as a driving structure.

[0008] Preferably, the housing is further provided with an air inlet and an air outlet, the air inlet is connected to the fan assembly; the air outlet is arranged on the side where the air outlet is located. The air inlet is the main entrance for the fan assembly to supplement the air volume, while the air outlet can be used for indoor exhaust operation. At the same time, when the air duct leads to the air outlet, it can also assist in air intake and supplement the air volume of the ventilation converter.

[0009] Preferably, the air outlet and the exhaust port are both located within the positive and negative 90° angle range of the line connecting the air inlet and the air duct input end, and the exhaust port is located on the opposite side of the air inlet. In order to reduce the wind resistance inside the ventilation converter, the air outlet and the exhaust port should be limited to a certain range; specifically, the air inlet position and the air duct input end position are a straight air duct with minimal wind resistance; on both sides of the straight air duct, the farther away from the straight air duct position, the greater the wind direction change angle, and the greater the wind resistance, therefore, the exhaust port and the air outlet need to be located close to the straight air duct position, and the angle range with the straight air duct is between positive and negative 90°.

[0010] Preferably, a heater assembly is provided in the air outlet, and the heater assembly includes a frame fixed in the air outlet and a heater located in the frame. The heater assembly mainly heats the airflow at the air outlet so that the air at the air outlet can warm the room after entering the room; the frame is fixed at the air outlet, and the heater is fixed on the frame.

[0011] Preferably, a windshield is provided in the exhaust port. The windshield can control the opening and closing state of the exhaust port; when the indoor air supply and heating operation is performed, the windshield in the exhaust port needs to block the exhaust port to prevent the outdoor airflow and the indoor airflow from exchanging air; when the indoor exhaust operation is performed, the windshield needs to keep the exhaust port in an open state.

[0012] Preferably, the housing comprises an upper housing and a lower housing, and the upper housing is detachably connected to the lower housing. The assembly of the upper housing and the lower housing is beneficial to the disassembly and maintenance of the ventilation converter.

[0013] Preferably, a control system is provided at the bottom of the lower shell, wherein a control circuit is integrated in the control system for automatically controlling the air supply and exhaust operation of the ventilation device.

[0014] Preferably, the lower housing is provided with a plurality of mounting brackets, which are used for fixed installation of the ventilation converter, and are generally installed in the form of hoisting.

[0015] Compared with the prior art, the beneficial effects of the utility model are: (1) by designing a rotating type of air duct to switch the duct ventilation, the structure is simple and easy to implement; (2) the rotating component is reasonably designed, and a small power motor can be selected as much as possible to improve the cost performance; (3) the dual fan design is adopted, the air supply volume is sufficient, and the air supply and exhaust effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric drawing of the present utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0019] Figure 4 It is a bottom view of the utility model.

[0020] Figure 5 It is an exploded view of the utility model.

[0021] Figure 6 It is a schematic diagram of the air duct of the utility model.

[0022] In the figure: 1. shell, 1.1. upper shell, 1.2. lower shell, 2. air outlet, 2.1. mounting plate, 2.2. air guide grid, 3. fan assembly, 3.1. fan, 3.2. air guide plate, 3.2.1. positioning shaft, 4. rotating assembly, 4.1. first gear, 4.2. second gear, 5. air inlet, 6. air outlet, 7. heating assembly, 7.1. frame, 7.2. heater, 8. wind shield, 9. control system, 10. mounting bracket, 11. air duct, 11.1. rotating sleeve, 11.2. fixing groove, 12. arc surface, 13. baffle, 14. guard plate, 14.1. fan plate, 14.2. arc plate, 15. receiving groove, 15.1. card slot. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0024] Example 1: Figures 1 to 6 A ventilation duct diverter shown in the figure comprises a housing 1, which is composed of an upper housing 1.1 and a lower housing 1.2. The side plate edges of the upper housing 1.1 and the lower housing 1.2 are provided with two air outlets 2, an air exhaust port 6 and an air inlet 5; wherein the air inlet 5 and the air exhaust port 6 are provided on opposite sides of the housing 1, and the two air outlets 2 are provided on both sides of the air exhaust port 6. The air inlet 5 is used to supplement the air volume of the ventilation converter; the air exhaust port 6 can be used to exhaust indoor air to the outdoors; and the air outlet 2 is used for indoor ventilation. Arranging two air outlets 2 on the ventilation converter can achieve different indoor ventilation effects.

[0025] A fan assembly 3 and an air duct 11 structure are provided inside the lower shell 1.2. In the present embodiment, the fan assembly 3 includes two fans 3.1. The two fans 3.1 are arranged adjacent to each other. The two fans 3.1 share a shell structure. The shell of the fan 3.1 is provided with screw holes and other structures. The fan 3.1 and the shell are fixed to the lower shell 1.2 by screws and other fasteners to prevent the position of the fan 3.1 from changing. It should be noted that the output ends of the two fans 3.1 are located at the same position. However, in order to avoid the airflow output by the two fans 3.1 from colliding and reducing the air outlet effect, an air guide plate 3.2 is provided at the output port of the two fans 3.1. The air guide plate 3.2 is arranged on the symmetry line of the two fans 3.1, such as Figure 3 As shown, the air guide piece 3.2 is tangent to the outer casings of the two fans 3.1 at the same time, so that the airflow can smoothly transition along the air guide piece 3.2.

[0026] like Figure 2As shown, a duct 11 structure is provided on the upper side of the housing of the fan assembly 3 and located above the output ends of the two fans 3.1. The input port of the duct 11 is located on the upper side of the output port of the fan assembly 3. In order to reduce the wind resistance effect of the two connecting ports, the input end of the duct 11 is in a certain flat arc shape, which is used for transition with the airflow output by the fan assembly 3; and the output end of the fan assembly 3 is also provided with an arc surface 12, as shown in FIG. Figure 3 or Figure 5 As shown, a cylindrical baffle 13 is provided on the side of the air guide piece 3.2 away from the output end of the fan assembly 3, one end of the air guide piece 3.2 extends into the cylindrical baffle 13, and an arc surface 12 is provided on the inner wall of the cylindrical baffle 13, the arc surface 12 is recessed downward on the side close to the fan assembly 3, and the arc surface 12 extends upward on the side that is in contact with the cylindrical baffle 13, so that the bottom of the arc surface 12 can be smoothly connected to the bottom of the output end of the fan assembly 3, which plays a role in guiding the airflow output by the fan assembly 3 upward, that is, guiding the airflow of the fan assembly 3 into the air duct 11; since the input end of the air duct 11 is flat, the input end to the output end of the air duct 11 is also in an arc shape, which can play a better guiding role for the airflow, that is, the airflow from the fan assembly 3 to the air duct 11 can achieve minimum wind resistance, thereby improving the ventilation efficiency of the ventilation converter.

[0027] like Figure 3 and Figure 2 as well as Figure 6As shown, a positioning shaft 3.2.1 is provided on the side of the air guide plate 3.2 away from the fan assembly 3, and the height of the positioning shaft 3.2.1 is higher than the height of the air guide plate 3.2 in the vertical direction. A rotating sleeve 11.1 is provided on the air duct 11, and the rotating sleeve 11.1 is located on the input end side of the air duct 11, and the rotating sleeve 11.1 can rotate with the positioning shaft 3.2.1, so that the air duct 11 can rotate relative to the fan assembly 3; and a rotating assembly 4 is provided on the upper side of the outer shell of the fan assembly 3 and on the outer side of the input end of the air duct 11, and the rotating assembly 4 includes a first gear 4.1 and a second gear 4.2; the first gear 4.1 is fixedly arranged on the air duct 11, and the second gear 4.2 is arranged on the outer shell of the fan assembly 3. Specifically, an arc-shaped fixing groove 11.2 is provided at the input end of the air duct 11. Since the input end of the air duct 11 is flat, an installation space is provided for the fixing groove 11.2. Three screw holes are evenly arranged in the arc-shaped fixing groove 11.2. The first gear 4.1 is an arc-shaped gear segment. Three fixing holes are arranged on the first gear 4.1. The first gear 4.1 can be fixed along the arc-shaped fixing groove 11.2 by screws. A second gear 4.2 is provided on the housing at the output end of the fan assembly 3. Specifically, the second gear 4.2 is driven by a motor, which is fixed on the housing of the fan assembly 3. The output end of the motor is connected to the second gear 4.2, and the second gear 4.2 and the first gear 4.1 are meshed together.

[0028] It should be noted that the radius of the first gear 4.1 is much larger than the radius of the second gear 4.2. After the motor is started, it will drive the second gear 4.2 to rotate, and the second gear 4.2 will drive the first gear 4.1 to rotate, thereby causing the air duct 11 to rotate. This solution uses a small gear (second gear 4.2) to drive the large gear (first gear 4.1) to move, which has a labor-saving effect, so that a motor with lower power can be selected as the driving structure, thereby improving the cost-effectiveness of the ventilation converter.

[0029] A guard plate 14 structure is also arranged between the fan assembly 3 and the air duct 11. The guard plate 14 consists of a horizontally arranged fan-shaped plate 14.1 and a vertically arranged arc plate 14.2. The fan-shaped plate 14.1 and the arc plate 14.2 are an integral structure, wherein the corner structure of the fan-shaped plate 14.1 is fixedly connected to the rotating sleeve 11.1 on the air duct 11 structure, and the arc plate 14.2 is fixedly connected to the outer casing of the fan assembly 3; the guard plate 14 can provide a certain protection for the rotating assembly 4. At the same time, because the installation point (or support point) of the air duct 11 is located at the input end of the air duct 11, and the output end of the air duct 11 is in a suspended state, the guard plate 14 can also apply a certain force to the input end of the air duct 11, so that the stability of the air duct 11 is higher, and the air duct 11 is prevented from getting stuck during rotation.

[0030] In this solution, the shell 1 (upper shell 1.1 and lower shell 1.2) is an octagonal prism structure as a whole, and the air inlet 5 and the air outlet 6 are located on two opposite surfaces of the shell 1, so the air inlet 5 and the air outlet 6 are located on a straight line, and an air outlet 2 is arranged on two adjacent side surfaces of the surface where the air outlet 6 is located (referring to the side surfaces on the octagonal prism), respectively, and the input end of the air duct 11 is connected to the fan assembly 3, and the output end of the air duct 11 is toward the exhaust port 6 and the air outlet 2 side; through the rotation of the air duct 11, the output end of the air duct 11 can be rotated to any air outlet 2 or exhaust port 6.

[0031] It should be noted that, in this embodiment, only two air outlets 2 are used for illustration, and two rooms can be ventilated; similarly, when there are more rooms, a corresponding number of air outlets 2 can be added to the housing 1, or a Y-shaped pipe or other structure can be added to the two existing air outlets 2 to increase the number of output air outlets; similarly, when there is only one air outlet, a Y-shaped pipe or other structure can be directly added to the air outlet to increase the number of output air outlets. Of course, in actual operation, it is also possible to add a Y-shaped pipe to the outer end of the heater.

[0032] In this solution, the angles between the two air outlets 2 and the exhaust port 6 are respectively +45° and -45° (± represents the direction). Under normal circumstances, when the air duct 11 faces the exhaust port 6, the airflow directly enters the air duct 11 from the output end of the fan assembly 3 and moves in a straight line to the exhaust port 6. At this time, the airflow resistance in the air duct 11 is relatively small; and when the air duct 11 faces the air outlets 2 on both sides, the airflow directly enters the air duct 11 from the output end of the fan assembly 3, and then the airflow deflects at an angle of 45° and moves to the air outlet 2. During the airflow turning process, a certain amount of wind resistance will be caused, which will reduce the flow effect of the airflow, and as the rotation angle increases, the wind resistance will also increase. Therefore, in order to reduce the internal wind resistance of the ventilation converter, The wind resistance of the air outlet 2 and the exhaust port 6 should be limited within a certain range; specifically, the position of the air inlet 5 and the position of the input end of the air duct 11 are equivalent to a straight air duct, and the wind resistance is minimal; on both sides of the straight air duct, the farther away from the straight air duct position, the greater the angle of wind direction change, and the greater the wind resistance. Therefore, the exhaust port 6 and the air outlet 2 need to be set close to the straight air duct. In actual applications, it is necessary to avoid the reverse movement of the airflow in the air duct 11 (maximum wind resistance). It is a more reasonable design when the angle range between the exhaust port 6 and the air outlet 2 and the straight air duct is between positive and negative 90°.

[0033] Since the output end of the air duct 11 needs to rotate and switch to different air outlets, the trajectory of the output end of the air duct 11 is in an arc shape. In order to avoid air leakage at the output end of the air duct 11, the output port of the air duct 11 is also designed to be in an arc shape, and the two air outlets 2 and the middle exhaust port 6 are located on one side inside the shell 1 and also form an arc transition, so that the output end of the air duct 11 and the side of the air outlet 2 close to the shell can be as close as possible, and the output end of the air duct 11 and the side of the exhaust port 6 close to the shell can be as close as possible. Under the premise of ensuring normal rotation, the gap between the air duct 11 and the air outlet is reduced, thereby reducing the air leakage effect and ensuring the air outlet efficiency of the air outlet 2 and the exhaust port 6.

[0034] like Figure 2 , Figure 3 and Figure 5 As shown, a heater assembly 7 is also arranged in the two air outlets 2, and a receiving groove 15 is arranged on the housing 1 and located at the position of the air outlet 2. The receiving groove 15 is used to place the heater assembly 7, and the receiving groove 15 is square; the heater assembly 7 includes a square frame 7.1 and a heater 7.2, the heater 7.2 is fixed inside the frame 7.1, and the frame 7.1 can be snapped into the receiving groove 15. In order to completely fix the frame 7.1, a screw structure can be used to fix the frame 7.1 in the receiving groove 15 of the housing 1. A mounting plate 2.1 is arranged at one end of the air outlet 2, and a wind guide grid plate 2.2 is arranged at the other end. The wind guide grid plate 2.2 can guide and rectify the airflow coming out of the air outlet 2; and the mounting plate 2.1 is used for the installation and fixation of the air outlet 2. Specifically, a card slot 15.1 structure is provided outside the receiving groove 15 (close to the outer edges of the upper shell 1.1 and the lower shell 1.2), and the mounting plate 2.1 is a thin plate structure, so the mounting plate 2.1 can be plugged into the card slot 15.1 of the lower shell 1.2, and when the upper shell 1.1 is finally covered, the card slot 15.1 on the upper shell 1.1 also cooperates with the mounting plate 2.1, so that the air outlet 2 can be installed and fixed. It should be noted that the frame 7.1 is a metal structure, which can prevent the heater 7.2 from damaging the frame 7.1 structure when heating; and the air outlet 6 can be set as an integral structure with the shell 1.

[0035] A windshield 8 is arranged inside the air outlet 6. Since the air outlet 6 is cylindrical, the windshield 8 is also cylindrical. The size of the windshield 8 is as close to the diameter of the air outlet 6 as possible, so as to achieve a better windshield effect. The windshield 8 is rotatably connected to the inside of the air outlet 6, and the opening size of the air outlet 6 can be controlled by rotating the windshield 8. When the air duct 11 rotates to the air outlet 6, the windshield 8 will rotate to make the air outlet 6 in an open state, and perform exhaust ventilation operation; and when the air duct 11 rotates to the air outlet 2, the windshield 8 in the air outlet 6 can be rotated to make the air outlet 6 in a closed state to avoid ventilation between indoor gas and outdoor gas (for example, it is cold outside and warm inside in winter), or it can be rotated to make the air outlet 6 in an open state, so that the air outlet is used as an auxiliary air inlet to supplement the air volume for the fan assembly 3 (the volute of the fan assembly 3 is negative pressure) or to supplement fresh air from the outdoor to the indoor.

[0036] It should be noted that the air outlet 2 is used to connect the indoor space, while the exhaust port 6 is used to connect the outdoor space; similarly, the air inlet 5 is used to connect the indoor space. When indoor ventilation is required, the air duct 11 rotates to the side of the exhaust port 6. At this time, the air inlet 5 can discharge the indoor gas to the outside through the fan assembly 3 (at this time, since the two air outlets 2 are in the normally open state, the two air outlets 2 will assist in air intake), and perform indoor and outdoor ventilation operations; when indoor gas heating is required, the air duct 22 needs to be rotated to the corresponding indoor air outlet 2 (at this time, the air inlet 5 and the other air outlet 2 provide air volume for the fan assembly 3), and the indoor gas passes through the fan assembly 3 and the heater assembly 7 from the air inlet 2 and is discharged from the air outlet 2 to the corresponding room, thereby achieving indoor gas heating.

[0037] A mounting groove is provided at the bottom of the lower housing 1.2 for mounting a control system 9 of the ventilation converter. The control system 9 includes an integrated circuit and various components to realize automatic control of the ventilation converter.

[0038] Screw holes are provided on the edges of the upper shell 1.1 and the lower shell 1.2, and the upper shell 1.1 and the lower shell 1.2 can be installed by means of screws; and the screw holes of the upper shell 1.1 are recessed in the surface of the upper shell 1.1, so that after the upper shell 1.1 and the lower shell 1.2 are fixedly installed, the screws are located in the recessed screw holes and will not be exposed to the surface of the upper shell 1.1, thereby improving the aesthetics of the ventilation converter; at the same time, it also protects the screws and prevents collision between the screws and external structures.

[0039] A plurality of mounting brackets 10 are also provided on the outer periphery of the lower housing 1.2. Figure 4As shown, four mounting brackets 10 are provided, two of which are arranged at the positions of the air inlet 5, and two are arranged at the positions of the two air outlets 2 respectively. The mounting bracket 10 is a U-shaped structure, which is used to be assembled with the suspension rod to realize the hoisting installation of the ventilation converter.

Claims

1. A ventilation duct steering machine, characterized in that: It comprises a shell, an air outlet is arranged on the shell and a fan assembly is arranged inside the shell, an air duct is rotatably connected to the fan assembly, an input end of the air duct is connected to the fan assembly, and an output end of the air duct faces the side where the air outlet is located.

2. A ventilation duct steering machine according to claim 1, characterized in that: The fan assembly includes two fans, the output ends of the two fans are simultaneously connected to the input end of the air duct, and the output ends of the fans are provided with air guide vanes.

3. A ventilation duct steering machine according to claim 1, characterized in that: A rotating assembly is arranged between the fan assembly and the air duct, and the rotating assembly includes a first gear and a second gear meshing with each other, the radius of the first gear is larger than the radius of the second gear, the first gear is fixedly connected to the air duct, and the second gear is arranged on the fan assembly.

4. A ventilation duct steering machine according to claim 1, characterized in that: The shell is also provided with an air inlet and an air outlet, wherein the air inlet is connected to the fan assembly; and the air outlet is arranged on the side where the air outlet is located.

5. A ventilation duct steering machine according to claim 4, characterized in that: The air outlet and the air exhaust port are both located within the positive and negative 90° angle range of the line connecting the air inlet and the air duct input end, and the air exhaust port is arranged on the opposite side of the air inlet.

6. A ventilation duct steering machine according to any one of claims 1 to 5, characterized in that: A heater assembly is arranged in the air outlet, and the heater assembly comprises a frame fixed in the air outlet and a heater located in the frame.

7. A ventilation duct steering machine according to claim 4 or 5, characterized in that: A wind shield is arranged in the air outlet.

8. A ventilation duct steering machine according to any one of claims 1 to 5, characterized in that: The shell comprises an upper shell and a lower shell, and the upper shell is detachably connected to the lower shell.

9. A ventilation duct steering machine according to claim 8, characterized in that: A control system is arranged at the bottom of the lower shell.

10. A ventilation duct steering machine according to claim 8, characterized in that: A plurality of mounting brackets are arranged on the lower shell.

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