Air exhaust device capable of adjusting air direction

Abstract

The utility model discloses an exhaust device capable of adjusting wind direction, which relates to the technical field of exhaust devices, and comprises an exhaust fan and an air duct fixedly arranged outside the exhaust fan, the end part of the air duct is communicated with a transverse pipe, the pipe orifice of the transverse pipe is communicated with a bent pipe, the pipe orifice of the bent pipe is communicated with an air outlet pipe, and the pipe wall of the transverse pipe is rotatably sleeved with a support ring. Two symmetrically-arranged connecting plates are fixedly arranged on the outer wall of the supporting ring, an arc-shaped plate is fixedly arranged through the connecting plates, a guide hole is formed in the arc-shaped plate, a guide rod is arranged in the guide hole in a sliding and penetrating mode, the guide rod is fixedly connected with the air outlet pipe, a rotating rod is rotationally arranged on the outer wall of the supporting ring, and the rod wall of the rotating rod is fixedly sleeved with a swing plate. The guide rod is arranged in the swing plate in a penetrating mode, and a driving mechanism used for driving the air outlet pipe to swing longitudinally is arranged on the rod wall of the rotating rod. According to the air exhaust device, the air outlet position of the air outlet can be adjusted at multiple angles, so that the air direction is adjusted, and the use multifunctionality of the air exhaust device is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, specifically to a ventilation device with adjustable airflow direction. Background Technology

[0002] An exhaust system is a device system that uses mechanical or natural means to expel indoor air to the outside, primarily for improving indoor air quality. For example, patent document CN221505200U discloses an exhaust system that, under the suction of an exhaust fan, generates negative pressure in the exhaust duct, causing indoor exhaust gas to be discharged outwards sequentially through the exhaust hood and exhaust duct. When the exhaust gas flows past a wind speed sensor, the sensor detects the exhaust wind speed in real time and sends the signal to a controller. The controller then adjusts the opening of the electronically controlled regulating valve accordingly based on the wind speed detected by the sensor.

[0003] However, the air outlet of the above-mentioned exhaust device is located in a fixed position, and the air direction of the outlet cannot be easily adjusted according to the needs. Utility Model Content

[0004] In view of the problems existing in the above-mentioned adjustable airflow exhaust devices, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an adjustable airflow exhaust device, which solves the problem that the airflow direction of the existing exhaust device is fixed and cannot be easily adjusted.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable ventilation device includes an exhaust fan and an air guide tube fixedly disposed outside the exhaust fan. A horizontal pipe is connected to the end of the air guide tube, a bent pipe is connected to the opening of the horizontal pipe, and an air outlet pipe is connected to the opening of the bent pipe. A support ring is rotatably fitted onto the wall of the horizontal pipe. Two symmetrically arranged connecting plates are fixedly disposed on the outer wall of the support ring, and an arc-shaped plate is fixedly disposed through the connecting plates. A guide hole is opened inside the arc-shaped plate, and a guide rod slides through the guide hole. The guide rod is fixedly connected to the air outlet pipe. A rotating rod is rotatably disposed on the outer wall of the support ring, and a swing plate is fixedly fitted onto the wall of the rotating rod. The guide rod passes through the swing plate.

[0008] The rod wall of the rotating rod is provided with a driving mechanism for driving the air outlet pipe to swing longitudinally;

[0009] A reversing mechanism for adjusting the rotation of the air outlet pipe is provided between the support ring and the horizontal pipe.

[0010] Preferably, a connecting tube is fixedly embedded inside the swing plate, the connecting tube is sleeved on the outside of the guide rod, and a connecting bolt is threaded between the tube wall and the guide rod.

[0011] Preferably, the driving mechanism includes a worm gear and a worm, a mounting plate is fixedly provided on the outer wall of the support ring, the worm is rotatably disposed in the mounting plate and cooperates with the worm gear, the worm gear is fixedly sleeved with a rotating rod, and a rotating block is fixedly provided at the bottom of the worm.

[0012] Preferably, the circumferential reversing mechanism includes a fixed gear ring, which is fixedly sleeved on the outer wall of the horizontal tube. Two symmetrically arranged slide rods are fixedly provided at the end of the support ring. The walls of the two slide rods are slidably sleeved with a limiting inner gear ring, which is sleeved outside the fixed gear ring. A spring is sleeved on the wall of the slide rod, and the two ends of the spring are fixedly connected to the limiting inner gear ring and the support ring, respectively.

[0013] Furthermore, a pull plate is fixedly provided on the outer wall of the limiting inner gear ring.

[0014] Preferably, the bent pipe is a corrugated expansion joint pipe.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This utility model, through the provision of a horizontal pipe, a bent pipe, an air outlet pipe, a support ring, a rotating rod, a swing plate, a guide rod, an arc plate, a drive mechanism, and a surrounding reversing mechanism, can adjust the air outlet position at multiple angles to achieve airflow direction adjustment, thereby improving the multi-functionality of the exhaust device.

[0017] 2. This utility model, through the provided horizontal pipe, bent pipe and air outlet pipe, can ensure that the connection stability between the horizontal pipe, bent pipe and air outlet pipe remains unchanged when the air outlet position of the air outlet pipe is adjusted, thus ensuring stable air outlet. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0021] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of part B.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Exhaust fan; 2. Air guide tube; 3. Horizontal pipe; 4. Bent pipe; 5. Air outlet pipe; 6. Support ring; 7. Connecting plate; 8. Arc plate; 9. Guide hole; 10. Guide rod; 11. Rotating rod; 12. Swing plate; 13. Connecting pipe; 14. Connecting bolt; 15. Worm gear; 16. Worm; 17. Mounting plate; 18. Rotating block; 19. Fixed gear ring; 20. Slide rod; 21. Limiting inner gear ring; 22. Spring; 23. Pull plate. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses an adjustable airflow exhaust device.

[0026] This utility model provides, for example Figure 1-3 An adjustable ventilation device is shown, comprising an exhaust fan 1 and an air guide duct 2 fixedly disposed outside the exhaust fan 1. A horizontal pipe 3 is connected to the end of the air guide duct 2, and a bent pipe 4 is connected to the opening of the horizontal pipe 3. The bent pipe 4 is a corrugated telescopic pipe, and an air outlet pipe 5 is connected to the opening of the bent pipe 4. A support ring 6 is rotatably sleeved on the wall of the horizontal pipe 3. Two symmetrically arranged connecting plates 7 are fixedly disposed on the outer wall of the support ring 6, and an arc plate 8 is fixedly disposed through the connecting plates 7. A guide hole 9 is opened inside the arc plate 8, and a guide rod 10 slides through the guide hole 9. The guide rod 10 is fixedly connected to the air outlet pipe 5. A rotating rod 11 is rotatably disposed on the outer wall of the support ring 6. A swing plate 12 is fixedly sleeved on the wall of the rotating rod 11. The guide rod 10 passes through the swing plate 12. A connecting pipe 13 is fixedly embedded inside the swing plate 12. The connecting pipe 13 is sleeved outside the guide rod 10, and a connecting bolt 14 is threaded between the wall of the connecting pipe 13 and the guide rod 10.

[0027] The rod wall of the rotating rod 11 is provided with a drive mechanism for driving the air outlet duct 5 to swing longitudinally. The drive mechanism includes a worm wheel 15 and a worm 16. The outer wall of the support ring 6 is fixedly provided with a mounting plate 17. The worm 16 is rotatably disposed in the mounting plate 17 and is configured to cooperate with the worm wheel 15. The worm wheel 15 is fixedly sleeved with the rotating rod 11. The bottom of the worm 16 is fixedly provided with a rotating block 18.

[0028] In order to enable the air outlet duct 5 to rotate circumferentially while simultaneously adjusting its longitudinal drive, thereby further increasing the air outlet angle, such as... Figure 1-2As shown, a reversing mechanism for adjusting the rotation of the air outlet pipe 5 is provided between the support ring 6 and the horizontal pipe 3. The reversing mechanism includes a fixed gear ring 19, which is fixedly sleeved on the outer wall of the horizontal pipe 3. Two symmetrically arranged sliding rods 20 are fixedly provided at the end of the support ring 6. The rod walls of the two sliding rods 20 are slidably sleeved with a limiting inner gear ring 21. A pull plate 23 is fixedly provided on the outer wall of the limiting inner gear ring 21. The limiting inner gear ring 21 is sleeved outside the fixed gear ring 19. A spring 22 is sleeved on the rod wall of the sliding rod 20. The two ends of the spring 22 are fixedly connected to the limiting inner gear ring 21 and the support ring 6, respectively.

[0029] Working principle: When the longitudinal airflow direction of the air outlet duct 5 needs to be adjusted, the rotating block 18 of the drive mechanism is rotated, which drives the worm gear 16 to rotate. The worm gear 16 meshes with the worm wheel 15, driving the rotating rod 11 to rotate, which in turn causes the swing plate 12 to swing around the axis of the rotating rod 11. The swing plate 12 is fixed to the guide rod 10 through the connecting pipe 13 and the connecting bolt 14. Therefore, the guide rod 10 swings synchronously with the swing plate 12. The guide rod 10 slides in the guide hole 9 of the arc plate 8, and at the same time drives the air outlet duct 5 to make pitching motion around the axis of the horizontal pipe 3. If the airflow direction needs to be adjusted to the direction of the ceiling, the rotating block 18 is rotated clockwise. The worm gear 16 pushes the worm wheel 15 to make the rotating rod 11 rotate clockwise. The swing plate 12 drives the guide rod 10 to move upward along the arc plate 8, and the air outlet duct 5 is raised upward; otherwise, it tilts downward.

[0030] When the horizontal rotation angle of the air outlet duct 5 needs to be adjusted, first pull the pull plate 23 so that the limiting inner gear ring 21 overcomes the elastic force of the spring 22 and slides outward along the slide rod 20, disengaging from the meshing state with the fixed gear ring 19. At this time, the support ring 6 can rotate freely around the horizontal tube 3, driving the connecting plate 7, the arc plate 8, the guide rod 10 and the air outlet duct 5 to rotate synchronously. After rotating to the target angle, release the pull plate 23, and the spring 22 resets and pushes the limiting inner gear ring 21 to re-mesh with the fixed gear ring 19. The position of the support ring 6 is fixed by the teeth biting, completing the horizontal angle locking. Through the combination of longitudinal pitch and horizontal rotation, the air outlet duct 5 can achieve multi-angle adjustment in three-dimensional space.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air exhaust device capable of adjusting the direction of air exhaust, comprising an air exhaust fan (1) and a wind guide cylinder (2) fixed outside the air exhaust fan (1), characterized in that, The end of the air guide tube (2) is connected to a horizontal tube (3), the opening of the horizontal tube (3) is connected to a bent tube (4), the opening of the bent tube (4) is connected to an air outlet tube (5), the wall of the horizontal tube (3) is rotatably fitted with a support ring (6), the outer wall of the support ring (6) is fixed with two symmetrically arranged connecting plates (7), and an arc plate (8) is fixed through the connecting plates (7). The arc plate (8) has a guide hole (9) inside, and a guide rod (10) slides through the guide hole (9). The guide rod (10) is fixedly connected to the air outlet tube (5). The outer wall of the support ring (6) is rotatably fitted with a rotating rod (11), the wall of the rotating rod (11) is fixedly fitted with a swing plate (12), and the guide rod (10) passes through the swing plate (12). The rod wall of the rotating rod (11) is provided with a driving mechanism for driving the air outlet pipe (5) to swing longitudinally; A reversing mechanism for adjusting the rotation of the air outlet pipe (5) is provided between the support ring (6) and the horizontal pipe (3).

2. The air direction-adjustable exhaust device according to claim 1, wherein The swing plate (12) is fixedly embedded with a connecting tube (13), which is sleeved on the outside of the guide rod (10). A connecting bolt (14) is threaded between the tube wall of the connecting tube (13) and the guide rod (10).

3. The air direction-adjustable exhaust device according to claim 1, wherein The driving mechanism includes a worm gear (15) and a worm (16). The outer wall of the support ring (6) is fixedly provided with a mounting plate (17). The worm (16) is rotatably disposed in the mounting plate (17) and cooperates with the worm gear (15). The worm gear (15) is fixedly sleeved with the rotating rod (11). The bottom of the worm (16) is fixedly provided with a rotating block (18).

4. The air direction-adjustable exhaust device according to claim 1, wherein The surrounding reversing mechanism includes a fixed gear ring (19), which is fixedly sleeved on the outer wall of the horizontal tube (3). The end of the support ring (6) is fixedly provided with two symmetrically arranged slide rods (20). The rod walls of the two slide rods (20) are slidably sleeved with a limiting inner gear ring (21). The limiting inner gear ring (21) is sleeved on the outside of the fixed gear ring (19). The rod walls of the slide rods (20) are sleeved with springs (22). The two ends of the springs (22) are fixedly connected to the limiting inner gear ring (21) and the support ring (6) respectively.

5. The adjustable air direction exhaust of claim 4, wherein, The outer wall of the limiting internal gear ring (21) is fixedly provided with a pull plate (23).

6. The air direction-adjustable exhaust device according to claim 1, wherein The bent pipe (4) is a corrugated expansion joint.

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