Installation clamping mechanism of ventilating fan and ventilating fan

Abstract

The utility model relates to an installation clamping mechanism of a ventilating fan and the ventilating fan. The installing and clamping mechanism of the ventilating fan comprises a limiting groove, a screw rod, an adjusting piece and a torsion spring, the screw rod is used for driving the adjusting piece and the torsion spring to transversely move relative to the screw rod through rotation, and the limiting groove is used for limiting the adjusting piece and the torsion spring when the screw rod rotates; the torsion spring comprises a first torsion arm, a second torsion arm and a spring coil respectively connected with the first torsion arm and the second torsion arm, and the spring coil sleeves the outer side of the screw rod; the adjusting part comprises a first connecting part, a second connecting part, an abutting part and a pressing part, the first connecting part and the second connecting part are provided with a first through hole and a second through hole respectively, the spring coil is arranged between the first connecting part and the second connecting part, and the abutting part is used for abutting against the inner wall of the limiting groove; and the pressing part is used for pressing the surface of the glass window so as to fix the ventilator. According to the installing and clamping mechanism of the ventilating fan, the ventilating fan is firmly fixed on the glass window, and the ventilating fan is convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation fan technical field, especially a ventilation fan's installation clamping mechanism and ventilation fan. BACKGROUND

[0002] ‌Ventilation fan is a kind of air conditioning electrical appliance by motor drives the rotation of fan blade and drives airflow, makes indoor and outdoor air exchange. Its main function is to remove the dirty air in the room, adjust temperature and humidity, keep indoor air fresh. Ventilation fan is widely used in family and public place, especially in kitchen and bathroom and other places where ventilation is widely used.‌

[0003] When installing ventilation fan, pre-installation slot hole is opened on wall, then ventilation fan is fixed on installation hole. In the related art, ventilation fan is mainly fixed and installed on wall by screw or glue. However, the way of fixing ventilation fan in the related art has many defects. For example, ventilation fan is fixed by screw, which is easy to cause damage to wall. Secondly, ventilation fan is fixed by glue, which makes ventilation fan not easy to disassemble. SUMMARY

[0004] Therefore, it is necessary to provide a ventilation fan's installation clamping mechanism and ventilation fan to solve the problem of many defects in the way of fixing ventilation fan in the related art.

[0005] A ventilation fan's installation clamping mechanism, including the limiting slot on ventilation fan, the screw in the limiting slot, the adjusting part and the torsion spring on the screw, the screw is used to drive the adjusting part and the torsion spring to move transversely relative to the screw by rotating, the limiting slot is used to limit the adjusting part and the torsion spring when the screw rotates;

[0006] The torsion spring includes first torsion arm, second torsion arm and spring ring connected with the first torsion arm and the second torsion arm respectively, and the spring ring is sleeved on the outer side of the screw;

[0007] The adjusting part includes first connecting part, second connecting part connected with the first connecting part, abutting part connected with the second connecting part and pressing part connected with the abutting part, the first connecting part is provided with the first through hole matched with the screw, the second connecting part is provided with the second through hole matched with the screw, the spring ring is arranged between the first connecting part and the second connecting part, the abutting part is used to abut with the inner wall of the limiting slot, and the pressing part is used to press on the surface of glass window to fix ventilation fan.

[0008] In one embodiment, the end of the first torsion arm is provided with a first hook, and the inside of the limiting slot is provided with a convex beam matched with the first hook.

[0009] In one of the embodiments, the end of the second torsion arm is provided with a second hook, and the abutting part is further provided with a through hole matched with the second hook.

[0010] In one of the embodiments, an anti-skid sleeve is mounted outside the pressing part.

[0011] In one of the embodiments, the limiting groove comprises a first limiting area, a second limiting area and a third limiting area, the first limiting area is arranged between the second limiting area and the third limiting area, the length of the first limiting area in the extension direction of the screw rod is equal to that of the second limiting area, the length of the first limiting area in the extension direction of the screw rod is greater than that of the third limiting area, and the boundaries of the first limiting area, the second limiting area and the third limiting area away from the glass window are aligned.

[0012] The first limiting area is used for arranging the screw rod and adjusting the position of the adjusting member through the torsion spring when the screw rod rotates.

[0013] The second limiting area is used for arranging the convex beam.

[0014] The third limiting area is used for accommodating the adjusting member and the torsion spring during the disassembly and assembly of the ventilation fan.

[0015] In one of the embodiments, the abutting part is provided with an abutting plate, and the abutting plate is designed in a bending manner.

[0016] In one of the embodiments, the pressing part is provided with a pressing plate, and the pressing plate is designed in a bending manner.

[0017] In one of the embodiments, the third limiting area is respectively provided with a first limiting curved surface matched with the pressing part and a second limiting curved surface matched with the abutting part.

[0018] In one of the embodiments, the first limiting area is respectively provided with a second limiting curved surface matched with the abutting part and a fourth limiting curved surface matched with the first connecting part.

[0019] A ventilation fan provided with the mounting and clamping mechanism of the above ventilation fan, the ventilation fan is mounted on a glass window, and the glass window is provided with a mounting hole matched with the ventilation fan.

[0020] The ventilation fan comprises a front cover, a rear cover and a fan, the front cover is provided with a first ventilation port matched with the fan, the rear cover is provided with a second ventilation port matched with the fan, the front cover is mounted indoors, the rear cover comprises an air pipe matched with the mounting hole and a support plate connected with the air pipe, the support plate is connected with the front cover, and the support plate is provided with an adjusting through hole matched with the screw rod on the side facing the front cover, and the air pipe extends outward along the mounting hole.

[0021] The mounting and clamping mechanism of the ventilation fan is arranged on the air duct and located between the outer surface of the glass window and the second ventilation opening.

[0022] The mounting and clamping mechanism of the ventilation fan includes four different states, in the first state, the screw rod, the adjusting member and the torsion spring are accommodated in the limiting groove; by rotating the screw rod in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, the mounting and clamping mechanism of the ventilation fan can enter the second state from the first state; in the second state, the pressing part of the adjusting member is in contact with the first limiting curved surface; by continuing to rotate the screw rod in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, the mounting and clamping mechanism of the ventilation fan can enter the third state from the second state; in the third state, the pressing part of the adjusting member enters the outside of the limiting groove, and the abutting part of the adjusting member is in contact with the second limiting curved surface; by continuing to rotate the screw rod in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, the mounting and clamping mechanism of the ventilation fan can enter the fourth state from the third state; in the fourth state, the abutting part of the adjusting member is in contact with the third limiting curved surface; by continuing to rotate the screw rod in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, when the first connecting part is in contact with the fourth limiting curved surface, the adjusting member and the torsion spring are limited by the fourth limiting curved surface, at this time, the pressing part of the adjusting member is pressed against the surface of the glass window to fix the ventilation fan. By rotating the screw rod in the second rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, the mounting and clamping mechanism of the ventilation fan can enter the first state from the fourth state, the third state and the second state in turn, starting from pressing the glass window, and finally the screw rod, the adjusting member and the torsion spring are accommodated in the limiting groove, so that the ventilation fan can be disassembled. It can be seen that by rotating the screw rod in different rotation directions, the ventilation fan can be conveniently disassembled and assembled, and the disassembly and assembly process will not damage the ventilation fan and the glass window. Further, in the process that the mounting and clamping mechanism of the ventilation fan enters the fourth state from the first state, due to the limiting effect of the limiting groove, the included angle between the first torsion arm and the second torsion arm of the torsion spring gradually decreases, and the torsion spring continuously stores energy; in the process that the mounting and clamping mechanism of the ventilation fan enters the first state from the fourth state, due to the limiting effect of the limiting groove, the included angle between the first torsion arm and the second torsion arm of the torsion spring gradually increases, the torsion spring continuously releases energy, and finally resets. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the mounting and clamping mechanism of the ventilation fan in the first state;

[0024] Figure 2 It is a structure schematic view of the mounting and clamping mechanism of the ventilation fan in the second state;

[0025] Figure 3 It is the structure schematic view of the installation clamping mechanism of the ventilation fan in the third state;

[0026] Figure 4 It is the structure schematic view of the installation clamping mechanism of the ventilation fan in the fourth state;

[0027] Figure 5 It is the local structure schematic view of the installation clamping mechanism of the ventilation fan;

[0028] Figure 6 It is the structure schematic view of the adjusting part in the installation clamping mechanism of the ventilation fan;

[0029] Figure 7 It is the cooperation structure schematic view of the adjusting part and the anti-skid sleeve in the installation clamping mechanism of the ventilation fan;

[0030] Figure 8 It is the structure schematic view of the torsion spring in the installation clamping mechanism of the ventilation fan;

[0031] Figure 9 It is the structure schematic view of the limiting groove in the installation clamping mechanism of the ventilation fan;

[0032] Figure 10 It is the overall structure schematic view of the ventilation fan;

[0033] Figure 11 It is the cooperation structure schematic view of the ventilation fan and the glass window;

[0034] Figure 12 It is the structure schematic view of the supporting plate in the installation clamping mechanism of the ventilation fan;

[0035] Wherein, 10 is the limiting groove, 20 is the screw rod, 30 is the adjusting part, 40 is the torsion spring, 50 is the convex beam, 60 is the ventilation fan, 70 is the glass window, 80 is the damping gasket, 11 is the first limiting area, 111 is the third limiting curved surface, 112 is the fourth limiting curved surface, 12 is the second limiting area, 13 is the third limiting area, 131 is the first limiting curved surface, 132 is the second limiting curved surface, 31 is the first connecting part, 311 is the first through hole, 32 is the second connecting part, 321 is the second through hole, 322 is the flange, 33 is the abutting part, 331 is the through hole, 332 is the abutting plate, 34 is the pressing part, 341 is the pressing plate, 35 is the anti-skid sleeve, 41 is the first torsion arm, 411 is the first hook, 42 is the second torsion arm, 421 is the second hook, 43 is the spring ring, 61 is the front cover, 62 is the rear cover, 621 is the air pipe, 622 is the supporting plate, 6221 is the adjusting through hole. DETAILED DESCRIPTION

[0036] To make the above objects, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given below. In other instances, well-known methods have not been described in detail in order to avoid obscuring the present application.

[0037] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. Like numbers refer to like elements throughout.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0039] The utility model discloses a mounting and clamping mechanism of ventilation fan.

[0040] As Figures 1 to 12As shown, the mounting and clamping mechanism of the ventilation fan comprises a limiting groove 10 arranged on the ventilation fan, a screw rod 20 arranged in the limiting groove 10, an adjusting piece 30 sleeved on the screw rod 20, and a torsional spring 40, the screw rod 20 is used to drive the adjusting piece 30 and the torsional spring 40 to move transversely relative to the screw rod 20 by rotating, and the limiting groove 10 is used to limit the adjusting piece 30 and the torsional spring 40 when the screw rod 20 rotates; the torsional spring 40 comprises a first torsional arm 41, a second torsional arm 42, and a spring ring 43 connected with the first torsional arm 41 and the second torsional arm 42 respectively, and the spring ring 43 is sleeved outside the screw rod 20; the adjusting piece 30 comprises a first connecting part 31, a second connecting part 32 connected with the first connecting part 31, an abutting part 33 connected with the second connecting part 32, and a pressing part 34 connected with the abutting part 33, the first connecting part 31 is provided with a first through hole 311 matched with the screw rod 20, the second connecting part 32 is provided with a second through hole 321 matched with the screw rod 20, the spring ring 43 is arranged between the first connecting part 31 and the second connecting part 32, the abutting part 33 is used to abut against the inner wall of the limiting groove 10, and the pressing part 34 is used to press on the surface of the glass window to fix the ventilation fan.

[0041] The second connecting part 32 is also provided with a flange 322 matched with the screw rod 20, the inner wall of the flange 322 is provided with a thread, the thread on the inner wall of the flange 322 is matched with the thread on the screw rod 20, so that the screw rod 20 can drive the adjusting piece 30 to move transversely relative to the screw rod 20 when the screw rod 20 rotates. Since the spring ring 43 is arranged between the first connecting part 31 and the second connecting part 32, the screw rod 20 can further drive the torsional spring 40 to move transversely relative to the screw rod 20.

[0042] The end of the first torsional arm 41 is provided with a first hook 411, and the inside of the limiting groove 10 is provided with a protruding beam 50 matched with the first hook 411. Through the mutual cooperation of the first hook 411 and the protruding beam 50, the first torsional arm 41 can be firmly fixed on the protruding beam 50 during the transverse movement of the torsional spring 40 relative to the screw rod 20, so that the work of the torsional spring 40 is more stable.

[0043] The end of the second torsional arm 42 is provided with a second hook 421, and the abutting part 33 is also provided with a through hole 331 matched with the second hook 421. Through the mutual cooperation of the second hook 421 and the through hole 331, the second torsional arm 42 can be firmly fixed on the adjusting piece 30 during the transverse movement of the torsional spring 40 relative to the screw rod 20, so that the work of the torsional spring 40 is more stable.

[0044] The anti-skid sleeve 35 is arranged outside the pressing part 34. The anti-skid sleeve 35 is arranged to increase the friction between the glass window and the anti-skid sleeve 35 when the pressing part 34 presses the ventilation fan on the surface of the glass window, so that the sliding friction is not easy to occur, and the ventilation fan is more firmly installed. Meanwhile, the anti-skid sleeve 35 can also reduce the vibration of the glass window and the ventilation fan, thereby reducing the generation of noise.

[0045] The limiting groove 10 comprises a first limiting area 11, a second limiting area 12 and a third limiting area 13. The first limiting area 11 is arranged between the second limiting area 12 and the third limiting area 13. The first limiting area 11 and the second limiting area 12 have equal lengths in the extension direction of the screw rod 20. The length of the first limiting area 11 in the extension direction of the screw rod 20 is greater than the length of the third limiting area 13 in the extension direction of the screw rod 20. The boundaries of the first limiting area 11, the second limiting area 12 and the third limiting area 13 away from the glass window are aligned. The first limiting area 11 is used to arrange the screw rod 20, and the position of the adjusting part 30 is adjusted by the torsion spring 40 when the screw rod 20 rotates. The second limiting area 12 is used to arrange the convex beam 50. The third limiting area 13 is used to accommodate the adjusting part 30 and the torsion spring 40 during the disassembly and assembly of the ventilation fan. The first limiting area 11, the second limiting area 12 and the third limiting area 13 can cooperate with each other to facilitate the disassembly and assembly of the ventilation fan.

[0046] The abutting part 33 is provided with an abutting plate 332, which is designed to be bent. The abutting plate 332 has a smooth contact surface by being designed to be bent, so that the contact surface of the abutting plate 332 does not scratch the inner wall of the limiting groove 10 during the transverse movement of the adjusting part 30 relative to the screw rod 20.

[0047] The pressing part 34 is provided with a pressing plate 341, which is designed to be bent. The pressing plate 341 has a greater contact area under the condition that the adjusting part 30 has a smaller thickness, which is beneficial to reduce the weight of the installation and clamping mechanism of the ventilation fan.

[0048] The third limiting area 13 is respectively provided with a first limiting curved surface 131 matched with the pressing part 34 and a second limiting curved surface 132 matched with the abutting part 33. The first limiting curved surface 131 and the second limiting curved surface 132 are arranged to make the movement of the adjusting part 30 and the torsion spring 40 more stable, so that the installation and clamping mechanism of the ventilation fan works more stably.

[0049] The first limiting area 11 is respectively provided with a third limiting curved surface 111 matched with the abutting portion 33 and a fourth limiting curved surface 112 matched with the first connecting portion 31. The third limiting curved surface 111 is arranged to make the movement of the adjusting member 30 and the torsion spring 40 more stable, thereby making the installation clamping mechanism of the ventilation fan work more stably. The fourth limiting curved surface 112 is arranged to control the transverse movement distance of the adjusting member 30 relative to the screw rod 20, thereby avoiding the adjusting member 30 from being pressed to break the glass window.

[0050] The installation clamping mechanism of the ventilation fan includes four different states. In the first state, the screw rod, the adjusting member and the torsion spring are accommodated in the limiting groove. The screw rod is rotated in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, so that the installation clamping mechanism of the ventilation fan can enter the second state from the first state. In the second state, the pressing portion of the adjusting member is in contact with the first limiting curved surface. The screw rod is continuously rotated in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, so that the installation clamping mechanism of the ventilation fan can enter the third state from the second state. In the third state, the pressing portion of the adjusting member is outside the limiting groove, and the abutting portion of the adjusting member is in contact with the second limiting curved surface. The screw rod is continuously rotated in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, so that the installation clamping mechanism of the ventilation fan can enter the fourth state from the third state. In the fourth state, the abutting portion of the adjusting member is in contact with the third limiting curved surface. The screw rod is continuously rotated in the first rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod. When the first connecting portion is in contact with the fourth limiting curved surface, the adjusting member and the torsion spring are limited by the fourth limiting curved surface. At this time, the pressing portion of the adjusting member is pressed on the surface of the glass window to fix the ventilation fan. The screw rod is rotated in the second rotation direction to drive the adjusting member and the torsion spring to move transversely relative to the screw rod, so that the installation clamping mechanism of the ventilation fan can enter the first state from the pressing glass window, the fourth state, the third state and the second state in turn. Finally, the screw rod, the adjusting member and the torsion spring are accommodated in the limiting groove, thereby disassembling the ventilation fan. It can be seen that the ventilation fan can be conveniently disassembled and assembled by rotating the screw rod in different rotation directions. The disassembly and assembly process will not damage the ventilation fan and the glass window. Further, in the process of the installation clamping mechanism of the ventilation fan from the first state to the fourth state, the included angle between the first torsion arm and the second torsion arm of the torsion spring gradually decreases due to the limiting effect of the limiting groove, and the torsion spring continuously stores energy. In the process of the installation clamping mechanism of the ventilation fan from the fourth state to the first state, the included angle between the first torsion arm and the second torsion arm of the torsion spring gradually increases due to the limiting effect of the limiting groove, and the torsion spring continuously releases energy and finally resets.

[0051] The utility model discloses still disclose a kind of ventilation fan 60 of the installation clamping mechanism of the ventilation fan described above. Ventilation fan 60 is installed on glass window 70, and glass window 70 is provided with the mounting hole matched with ventilation fan 60;Ventilation fan 60 includes front cover 61, rear cover 62 and fan, and front cover 61 is provided with the first ventilation port matched with fan, and rear cover 62 is provided with the second ventilation port matched with fan, and front cover 61 is installed in indoor, and rear cover 62 includes the air pipe 621 matched with the mounting hole on glass window 70 and the support plate 622 connected with air pipe 621, and support plate 622 is connected with front cover 61, and support plate 622 is provided with the adjusting through-hole 6221 matched with the rotation of screw rod 20 on the side towards front cover 61, and air pipe 621 extends along the mounting hole on glass window 70 to outdoor;The installation clamping mechanism of the ventilation fan described above is arranged on air pipe 621, and located between the outer surface of glass window 70 and second ventilation port, and second ventilation port is arranged at the end of air pipe 621.

[0052] When disassembling ventilation fan 60, first, front cover 61 is disassembled from rear cover 62, and then screw rod 20 can be rotated through adjusting through-hole 6221. Since the installation clamping mechanism of ventilation fan is in the first state, screw rod, adjusting member and torsion spring are all accommodated in limiting groove, so ventilation fan can be conveniently taken to indoor, and it is convenient to replace and maintain. Further, in order to reduce vibration in the working process of ventilation fan 60, damping washer 80 is arranged between glass window 70 and support plate 622.

[0053] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0054] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A mounting and clamping mechanism for a ventilating fan, characterized in that The ventilation fan comprises a limiting groove arranged on the ventilation fan, a screw rod arranged in the limiting groove, an adjusting member sleeved on the screw rod, and a torsion spring, the screw rod is used to drive the adjusting member and the torsion spring to move transversely relative to the screw rod by rotating, and the limiting groove is used to limit the adjusting member and the torsion spring when the screw rod rotates; The torsion spring comprises a first torsion arm, a second torsion arm, and a spring ring connected with the first torsion arm and the second torsion arm respectively, and the spring ring is sleeved on the outer side of the screw rod; The adjusting member comprises a first connecting part, a second connecting part connected with the first connecting part, an abutting part connected with the second connecting part, and a pressing part connected with the abutting part, the first connecting part is provided with a first through hole matched with the screw rod, the second connecting part is provided with a second through hole matched with the screw rod, the spring ring is arranged between the first connecting part and the second connecting part, the abutting part is used to abut against the inner wall of the limiting groove, and the pressing part is used to press on the surface of the glass window to fix the ventilation fan.

2. The mounting clamping mechanism of a ventilation fan according to claim 1, characterized in that, The end of the first torsion arm is provided with a first hook, and the inside of the limiting groove is provided with a convex beam matched with the first hook.

3. The mounting clamping mechanism of a ventilation fan according to claim 2, characterized in that, The end of the second torsion arm is provided with a second hook, and the abutting part is further provided with a through hole matched with the second hook.

4. The mounting clamping mechanism of a ventilation fan according to claim 3, characterized in that, The outer side of the pressing part is provided with an anti-skid sleeve.

5. The mounting clamping mechanism of a ventilation fan according to claim 4, characterized in that, The limiting groove comprises a first limiting area, a second limiting area, and a third limiting area, the first limiting area is arranged between the second limiting area and the third limiting area, the length of the first limiting area in the extension direction of the screw rod is equal to the length of the second limiting area in the extension direction of the screw rod, the length of the first limiting area in the extension direction of the screw rod is greater than the length of the third limiting area in the extension direction of the screw rod, and the boundaries of the first limiting area, the second limiting area, and the third limiting area away from the glass window are aligned; The first limiting area is used to arrange the screw rod, and the position and posture of the adjusting member are adjusted by the torsion spring when the screw rod rotates; The second limiting area is used to arrange the convex beam; The third limiting area is used to accommodate the adjusting member and the torsion spring during the disassembly and assembly of the ventilation fan.

6. The mounting and clamping mechanism of a ventilation fan according to any one of claims 1 to 5, characterized in that, The abutting part is provided with an abutting plate, and the abutting plate adopts a bending design.

7. The mounting and clamping mechanism of a ventilation fan according to any one of claims 1 to 5, characterized in that, The pressing part is provided with a pressing plate, and the pressing plate adopts a bending design.

8. The mounting clamping mechanism of a ventilation fan according to claim 5, wherein The third limiting area is respectively provided with a first limiting curved surface matched with the pressing part and a second limiting curved surface matched with the abutting part.

9. The mounting and clamping mechanism of a ventilation fan according to claim 5, wherein, The first limiting area is respectively provided with a third limiting curved surface matched with the abutting part and a fourth limiting curved surface matched with the first connecting part.

10. A ventilation fan having a mounting clamp mechanism according to any one of claims 1 to 9, wherein The ventilation fan is mounted on the glass window, and the glass window is provided with a mounting hole matched with the ventilation fan; The ventilation fan comprises a front cover, a rear cover, and a fan, the front cover is provided with a first ventilation port matched with the fan, the rear cover is provided with a second ventilation port matched with the fan, the front cover is mounted in the room, the rear cover comprises an air pipe matched with the mounting hole and a support plate connected with the air pipe, the support plate is connected with the front cover, the support plate is provided with an adjusting through hole matched with the screw rod on the side facing the front cover, and the air pipe extends outward along the mounting hole. The mounting and clamping mechanism of the ventilation fan is arranged on the air duct and located between the outer surface of the glass window and the second ventilation port.

Images