A ventilation fan that is easy to install

Abstract

The utility model provides an easy-to-install ventilation fan, which belongs to the field of mechanical technology and solves the problem of inconvenient installation of existing ventilation fans. The easy-to-install ventilation fan includes: a shell, which is arranged in a volute shape, a wind wheel is embedded in the shell, a spiral air duct is arranged around the wind wheel, an air outlet connected to the spiral air duct is opened on one side of the shell, and a support plate is arranged across the air outlet; an air outlet cover is buckled at the air outlet, and the air outlet cover is arranged in a trumpet-like shape; a panel is connected to the shell through a buckle plate, the panel and the buckle plate are arranged in parallel, and a number of pillars are evenly distributed between the panel and the buckle plate, and an air inlet area connected to the shell is formed between the panel and the buckle plate. The utility model has the characteristics of convenient installation and good use effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a ventilation fan which is easy to install, in particular to a ventilation fan which can be matched with various types of panels. Background Art

[0002] Ventilation fan is a kind of air conditioning appliance that uses a motor to drive the fan blades to rotate and drive the air flow, so that the indoor air and outdoor air are exchanged. The purpose of exhaust is mainly to remove the dirty air in the room and further adjust the indoor temperature and humidity. It is widely used in homes and public places.

[0003] Ventilation fans, also known as negative pressure fans, negative pressure fans, etc., have exhaust, suction, and combined working modes. While exhausting the stuffy air in the room, the ventilation fan uses air convection to keep the room in a negative pressure state, continuously inhaling fresh air from the outside to achieve the purpose of exchange, thereby achieving the effect of ventilation and cooling.

[0004] During interior decoration, the ventilator is usually installed in the ceiling panel, and a cover is usually set at the air outlet of the ventilator to facilitate connection with the reserved vent in the room. In order to facilitate the motor to drive the ventilator to work more easily, the existing ventilator has a relatively light weight, which can also reduce the load of the ceiling panel. However, such a design easily makes it inconvenient to install a cover at the air outlet of the ventilator, making the actual installation difficult; or the air outlet of the ventilator is prone to deformation after installation, which is not conducive to the long-term normal use of the ventilator.

[0005] In summary, in order to solve the deficiencies in the existing ventilation fan structure, the utility model designs a ventilation fan which has a reasonable structure, good use effect and is easy to install. Summary of the invention

[0006] The utility model solves the problems existing in the prior art and provides a ventilation fan which has a reasonable structure, good use effect and is easy to install.

[0007] The purpose of the utility model can be achieved through the following technical solutions: a ventilation fan that is easy to install, comprising:

[0008] The shell is in a volute shape, a wind wheel is embedded in the shell, a spiral wind duct is arranged around the wind wheel, an air outlet connected to the spiral wind duct is opened on one side of the shell, and a support plate is arranged across the air outlet;

[0009] An air outlet cover is buckled at the air outlet, and the air outlet cover is arranged in a trumpet shape;

[0010] The panel is connected to the shell through a buckle plate. The panel and the buckle plate are arranged in parallel and a number of pillars are evenly distributed between the panel and the buckle plate. An air inlet area connected to the shell is formed between the panel and the buckle plate.

[0011] As a further improvement of the present invention, both ends of the support plate are respectively fixedly connected to the inner wall of the shell, and the length of the cross section of the support plate increases or decreases from one end to the other end.

[0012] As a further improvement of the present invention, a check plate is rotatably connected to the bottom of the air outlet, and a portion of the check plate rests against the support plate.

[0013] As a further improvement of the present invention, both sides of the air outlet protrude outward to form ridges, and buckles corresponding to the ridges are fixed on both sides of the air outlet cover.

[0014] As a further improvement of the present case, upper and lower card slots are respectively provided at the upper and lower ends of the air outlet, and upper and lower card slots corresponding to the upper and lower card slots are fixedly provided at the upper and lower ends of the air outlet cover.

[0015] As a further improvement of the present case, the air outlet cover is formed by buckling a left connecting piece and a right connecting piece, the left connecting piece is provided with two pin holes at one end away from the air outlet, and the right connecting piece is provided with two pin shafts corresponding to the two pin holes.

[0016] As a further improvement of the present invention, a lug extends outwardly from each pin hole, and a protrusion is raised in the middle of the lug to form a protrusion, and a through hole corresponding to the protrusion is opened next to each pin shaft.

[0017] Compared with the prior art, the utility model has a reasonable structural arrangement. By adding a support plate at the air outlet of the ventilation fan, the structural rigidity of the air outlet of the shell is enhanced, which makes it easier for the air outlet cover to be stably buckled at the air outlet to avoid frequent loosening, thereby increasing the overall service life of the ventilation fan. At the same time, the arrangement of the support plate facilitates the outward diversion of the internal airflow of the ventilation fan, thereby improving air circulation. In addition, the arrangement of the support plate facilitates limiting the working space of the anti-return plate, which is conducive to the anti-return plate returning to its initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the second embodiment of the present utility model.

[0020] Figure 3 yes Figure 1 Schematic diagram of part of the structure.

[0021] Figure 4 The utility model is a structural schematic diagram of the left connecting piece of the air outlet cover.

[0022] Figure 5 The utility model is a structural schematic diagram of the right connecting piece of the air outlet cover.

[0023] Figure 6 It is a structural schematic diagram of the third embodiment of the present utility model.

[0024] Figure 7 It is a structural schematic diagram of the fourth embodiment of the present utility model.

[0025] In the figure, 10, shell; 11, wind wheel; 12, spiral air duct; 13, air outlet; 131, upper slot; 132, lower slot; 133, ridge; 14, support plate; 15, check plate; 20, air outlet cover; 21, left connecting piece; 211, pin hole; 212, lug; 2121, boss; 213, step surface; 22, right connecting piece; 221, pin shaft; 222, through hole; 223, patch; 231, upper buckle piece; 232, lower buckle piece; 233, buckle; 30, panel; 31, buckle plate; 32, pillar; 33, air inlet area. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described below in conjunction with the embodiments and drawings.

[0027] like Figure 1 and Figure 2 As shown, the easy-to-install ventilation fan includes:

[0028] The housing 10 is in a volute shape, a wind wheel 11 is embedded in the housing 10, a spiral air duct 12 is arranged around the wind wheel 11, an air outlet 13 connected to the spiral air duct 12 is opened on one side of the housing 10, and a support plate 14 is arranged across the air outlet 13;

[0029] The air outlet cover 20 is buckled at the air outlet 13, and the air outlet cover 20 is arranged in a trumpet shape;

[0030] The panel 30 is connected to the shell 10 through the buckle plate 31. The panel 30 and the buckle plate 31 are arranged in parallel and a plurality of pillars 32 are evenly distributed between the panel 30 and the buckle plate 31. An air inlet area 33 connected to the shell 10 is formed between the panel 30 and the buckle plate 31.

[0031] During indoor decoration, the ventilating fan is generally installed in the ceiling panel 30, and a cover is usually provided at the air outlet 13 of the ventilating fan to facilitate connection with the reserved ventilating hole in the room. In order to facilitate the motor to drive the ventilating fan to work more easily, the existing ventilating fan has a relatively light weight, and can also reduce the load of the ceiling panel 30, but such a design easily makes it inconvenient to install a cover at the air outlet 13 of the ventilating fan, and the actual installation is difficult; or the air outlet 13 of the ventilating fan is easily deformed after installation, which is not conducive to the long-term normal use of the ventilating fan.

[0032] To this end, the utility model provides a ventilation fan that is easy to install. By adding a support plate 14 at the air outlet 13 of the ventilation fan, the structural rigidity of the air outlet 13 of the shell 10 is enhanced, and the air outlet cover 20 is stably buckled at the air outlet 13 to avoid frequent loosening, thereby increasing the overall service life of the ventilation fan; at the same time, the provision of the support plate 14 facilitates the diversion of the internal airflow of the ventilation fan to the outside, thereby improving air circulation.

[0033] Specifically, during actual operation, a motor (not shown in the figure) is installed at the center of the wind wheel 11, and the motor drives the wind wheel 11 to rotate, so that air enters the wind wheel 11 through the air inlet area 33 on the panel 30, and is further transported outward along the spiral air duct 12 and the air outlet hood 20 to achieve the purpose of ventilation.

[0034] In the present invention, the ventilator panel 30 adopts a double-layer structure, and the support 32 is provided to form an air inlet area 33, thereby sucking air in. In this embodiment, the panel 30 and the gusset plate 31 preferably adopt a combined structure, and of course an integrated structure can also be adopted when used, which is not limited here.

[0035] The ventilating fan can actually match various types of panels 30 as needed, for example Figure 2 , Figure 6 as well as Figure 7 The panel 30 structure shown can of course also match panels 30 of other shapes, structures and functions. Figure 2 as well as Figure 7 The middle part of the panel 30 carries the lighting component.

[0036] like Figures 1 to 3 As shown, preferably, both ends of the support plate 14 are respectively fixedly connected to the inner wall of the housing 10, and the length of the cross section of the support plate 14 increases or decreases from one end to the other. Preferably, both ends of the support plate 14 are respectively fixedly connected to the inner wall of the housing 10 where the air outlet 13 is located, so as to maintain the structural rigidity of the air outlet 13, facilitate the air outlet cover 20 to be buckled at the position of the air outlet 13, and help to maintain the stable connection between the air outlet cover 20 and the housing 10, so as to facilitate the normal use of the ventilation fan for a long time.

[0037] The length of the cross section of the support plate 14 increases or decreases from one end to the other. Such a structural setting can avoid interference between the support plate 14 and structures such as the spiral air duct 12 and the wind wheel 11, thereby ensuring the normal operation of the ventilation fan.

[0038] Furthermore, a check plate 15 is rotatably connected to the bottom of the air outlet 13 , and a portion of the check plate 15 abuts against the support plate 14 .

[0039] It is preferred to install a check plate 15 at the air outlet 13. When the ventilation fan is working, under the action of the airflow, the check plate 15 rotates toward the air outlet cover 20 to facilitate the outward transportation of air. When the ventilation fan is not working, the check plate 15 rests on the support plate 14 to block the air outlet 13, avoiding the backflow of dirty air after output, thereby ensuring fresh indoor air.

[0040] Here, the support plate 14 exerts a limiting effect on the anti-return plate 15 to prevent the anti-return plate 15 from rotating toward the spiral air duct 12, thereby ensuring that outdoor air cannot enter the ventilation fan from the air outlet cover 20 in the reverse direction.

[0041] Preferably, two sides of the air outlet 13 protrude outward to form ridges 133 , and buckles 233 corresponding to the ridges 133 are fixedly disposed on two sides of the air outlet cover 20 .

[0042] Furthermore, the air outlet 13 is provided with an upper slot 131 and a lower slot 132 at the upper and lower ends respectively, and the air outlet cover 20 is provided with an upper buckle piece 231 and a lower buckle piece 232 corresponding to the upper slot 131 and the lower slot 132 at the upper and lower ends.

[0043] In the present invention, buckles 233 are preferably provided on both sides of the air outlet cover 20, which are buckled on the convex ridges 133 vertically provided on both sides of the air outlet 13, and upper buckle pieces 231 and lower buckle pieces 232 are provided at the upper and lower ends of the air outlet cover 20, which are respectively buckled in the upper and lower grooves 131 and 132 of the air outlet 13. In view of the arrangement of the support plate 14, the position where the air outlet 13 and the air outlet cover 20 are connected has a certain structural rigidity and structural strength, and the air outlet cover 20 and the air outlet 13 are smoothly buckled.

[0044] like Figure 4 and Figure 5 As shown, preferably, the air outlet cover 20 is formed by buckling a left connecting piece 21 and a right connecting piece 22 , the left connecting piece 21 is provided with two pin holes 211 at one end away from the air outlet 13 , and the right connecting piece 22 is provided with two pin shafts 221 corresponding to the two pin holes 211 .

[0045] It is worth mentioning that the air outlet cover 20 is actually formed by two curved left connecting pieces 21 and right connecting pieces 22 that are buckled together. The left connecting piece 21 and the right connecting piece 22 are in relative positions. The upper buckle piece 231 and the lower buckle piece 232 are actually spliced ​​together by the upper buckle pieces 231 and the lower buckle pieces 232 correspondingly arranged on the left and right connecting pieces.

[0046] Preferably, a pin hole 211 is provided at one end of the left connecting piece 21 away from the air outlet 13, and a pin shaft 221 is provided at one end of the right connecting piece 22 away from the air outlet 13. When the left connecting piece 21 and the right connecting piece 22 are buckled together, the pin shaft 221 is embedded in the corresponding pin hole 211 to ensure that the left and right connecting pieces are buckled stably.

[0047] Furthermore, a lug 212 extends outwardly from each pin hole 211 , and a central portion of the lug 212 protrudes to form a convex column 2121 . A through hole 222 corresponding to the convex column 2121 is formed next to each pin shaft 221 .

[0048] Here, it is preferred to respectively provide corresponding bosses 2121 and through holes 222 beside the pin hole 211 and the pin shaft 221 to further ensure that the connection and buckling of the left and right connecting pieces are stable.

[0049] Corresponding step surfaces 213 and patches 223 are provided at the bottom of the left and right connecting pieces. When the left and right connecting pieces are buckled together, the overall structural strength and structural stability of the air outlet cover 20 are enhanced.

[0050] The specific locations of the pin hole 211 , the pin shaft 221 , the lug 212 , the boss 2121 , the through hole 222 , the step surface 213 , the patch 223 , etc. can be determined according to actual needs and are not limited in the present utility model.

[0051] The structure of the ventilation fan which is easy to install is reasonably arranged. By adding a support plate 14 at the air outlet 13 of the ventilation fan, the structural rigidity of the air outlet 13 of the shell 10 is enhanced, so that the air outlet cover 20 can be stably buckled at the air outlet 13 to avoid frequent loosening, thereby increasing the overall service life of the ventilation fan. At the same time, the arrangement of the support plate 14 facilitates the outward diversion of the internal airflow of the ventilation fan, thereby improving air circulation. In addition, the arrangement of the support plate 14 facilitates limiting the working space of the check plate 15, which is conducive to the check plate 15 returning to its initial position.

[0052] The preferred embodiments of the present invention are described herein, but the protection scope of the present invention is not limited thereto. Any modification or supplement or replacement of the specific embodiments described by technicians in the field of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ventilating fan that is easy to install, characterized in that: include: The shell is in a volute shape, a wind wheel is embedded in the shell, a spiral wind duct is arranged around the wind wheel, an air outlet connected to the spiral wind duct is opened on one side of the shell, and a support plate is arranged across the air outlet; An air outlet cover is buckled at the air outlet, and the air outlet cover is arranged in a trumpet shape; The panel is connected to the shell through a buckle plate. The panel and the buckle plate are arranged in parallel and a number of pillars are evenly distributed between the panel and the buckle plate. An air inlet area connected to the shell is formed between the panel and the buckle plate.

2. The ventilating fan that is easy to install according to claim 1, characterized in that: The two ends of the support plate are respectively fixedly connected to the inner wall of the shell, and the length of the cross section of the support plate increases or decreases from one end to the other end.

3. The ventilating fan that is easy to install according to claim 1, characterized in that: A non-return plate is rotatably connected to the bottom of the air outlet, and a portion of the non-return plate rests on the support plate.

4. The ventilating fan that is easy to install according to claim 1, characterized in that: Both sides of the air outlet are respectively bulged outward to form ridges, and buckles corresponding to the ridges are respectively fixed on both sides of the air outlet cover.

5. The ventilating fan that is easy to install according to claim 1, characterized in that: An upper clamping groove and a lower clamping groove are respectively arranged at the upper and lower ends of the air outlet, and an upper buckle piece and a lower buckle piece corresponding to the upper and lower clamping grooves are fixedly arranged at the upper and lower ends of the air outlet cover.

6. The easy-to-install ventilating fan according to claim 1, characterized in that: The air outlet cover is formed by buckling a left connecting piece and a right connecting piece. Two pin holes are opened at one end of the left connecting piece away from the air outlet, and two pin shafts corresponding to the two pin holes are arranged on the right connecting piece.

7. The easy-to-install ventilating fan according to claim 6, characterized in that: A lug is extended outwardly beside each pin hole, and the middle part of the lug is raised to form a convex column. A through hole corresponding to the convex column is opened beside each pin shaft.

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