Exhaust fan unit.

Abstract

To provide an exhaust fan device which enables an inexpert person having no detailed knowledge about the exhaust fan device to disassemble and clean an exhaust fan safely and quickly and then assemble easily.SOLUTION: An exhaust fan device 100 according to the invention includes: a casing 10 attached to a wall surface so as to be at least partially exposed to the outside; a fan 20 disposed in the casing 10; a motor 30 attached to the fan 20; a holding member 40 attached to the fan 20 or the motor 30; and a switch 70 provided at the casing 10. The fan 20 and the motor 30 are attached manually or fixed by removable screw members. The holding member 40 and the casing 10 are attached manually or fixed by removable screw members.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an exhaust fan device. [Background technology]

[0002] Various types of exhaust devices having fans installed outdoors have been proposed. For example, an exhaust unit using a centrifugal blower as an exhaust source is made into a unit, and the exhaust unit is inserted and attached to an opening in a building wall from the indoor side, and the exhaust means, control unit, etc. are separated from the indoor hood section, and an exhaust path is formed in which the intake port of the centrifugal blower and the exhaust duct on the hood side are connected by an intermediate duct, thereby reducing the inflow resistance of the exhaust flow due to the expansion or contraction of the volume in the middle of the flow path. Also, an exhaust unit has been proposed in which the unit case and intermediate duct of the exhaust unit are configured to be expandable and contractible, so that the exhaust unit can be attached to the building wall in a state where the exhaust port of the centrifugal blower faces the outdoors, regardless of the thickness of the building wall (Patent Document 1).

[0003] Certainly, such an exhaust unit is an excellent invention in that it can be installed with the centrifugal fan exhaust port facing the outdoors regardless of the thickness of the building wall. However, when the exhaust unit is used for a store, especially in a barbecue restaurant that has a large amount of exhaust and contains a lot of oil, it quickly becomes dirty and must be cleaned frequently. However, the above-mentioned exhaust unit has the problem that it can only be disassembled by a professional and is difficult for amateurs to clean. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-130416 A Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, the present invention has been made to solve the above-mentioned problems, and has an object to provide an exhaust fan device that can be safely and quickly disassembled and cleaned, and can be easily assembled, even by a layman who is not familiar with exhaust fan devices. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention takes the following measures.

[0007] The exhaust fan device according to the present invention comprises: A casing attached to a wall surface so that at least a portion of the casing is exposed to the outside; A fan disposed within the casing; a motor attached to the fan; a gripping member attached to the fan or the motor; a switch provided in the casing; The fan and the motor are fixed to each other by a motor mounting screw member that can be manually attached or removed. The gripping member and the casing are fixed to each other by a gripping member fixing screw member which can be manually attached or detached.

[0008] By configuring such an exhaust fan device, the fan and motor can be easily removed and installed by one person without the need for special tools. The removed fan and motor can also be removed and installed by one person without the need for special tools. Therefore, even a person who is not familiar with exhaust fan devices can easily and quickly disassemble and clean the exhaust fan device. In addition, even if the person is not familiar with the electrical wiring of the store, the power can be easily turned off using the switch on the exhaust fan device, so the exhaust fan device can be disassembled safely.

[0009] In addition, in the exhaust fan device according to the present invention, The gripping member may be characterized by being provided with a temporary positioning means capable of temporarily positioning the gripping member so as not to fall off before being fixed to the casing.

[0010] By adopting this configuration, it is possible to reduce the possibility that even a person unfamiliar with exhaust fan devices will make a mistake in the installation position when installing the fan and motor removed from the casing. Also, since the fan and motor can be maintained in a temporary installed state, there is no need to support the heavy motor while fixing it with the screw members, and the screw members can be tightened with both hands free, so that the fan and motor can be easily and quickly installed in the casing by one person.

[0011] Furthermore, in the exhaust fan device according to the present invention, The temporary positioning means may be characterized as a positioning pin that is inserted into a plurality of positioning holes formed in the casing and the positioning hole provided in the holding member and is formed so as not to fall due to frictional force.

[0012] By adopting such a configuration, the provisional determination means described above can be easily configured.

[0013] Furthermore, in the exhaust fan device according to the present invention, The gripping member may be characterized by having two handles so that it can be held with both hands.

[0014] By employing this configuration, the fan and the motor can be held with both hands, so that they can be safely removed from the casing.

[0015] Furthermore, in the exhaust fan device according to the present invention, the motor mounting screw member has a grip portion, a threaded portion, and a grooved washer provided between the grip portion and the threaded portion and having grooves formed radially from a center, The gripping portion is provided with a cylindrical body that is formed in a cylindrical shape up to the vicinity of the grooved washer, The present invention may be characterized in that a spring having a sphere disposed on the grooved washer side is inserted inside the cylindrical body.

[0016] By using such a motor mounting screw member, the motor mounting screw member can be tightened with optimum strength.

[0017] Furthermore, in the exhaust fan device according to the present invention, The present invention further includes a cover capable of covering the switch, the motor, the fan, and the gripping member, The cover may be characterized in that it is secured by a threaded member that can be manually attached or removed.

[0018] By adopting such a configuration, the cover can also be easily and quickly removed and attached. Effect of the Invention

[0019] The exhaust fan device of the present invention allows even a layman who is not familiar with exhaust fan devices to safely and quickly disassemble and clean the exhaust fan, and provides an exhaust fan device that can be easily assembled. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is an exploded perspective view of an exhaust fan device 100 according to an embodiment. [Diagram 2] FIG. 2 is a perspective view of the casing 10 of the exhaust fan device 100 according to the embodiment. [Diagram 3] FIG. 3 is a perspective view showing the exhaust fan device 100 according to the embodiment in an assembled state, in which the fan 20, the motor 30, and the gripping member 40 are assembled. [Figure 4] FIG. 4 is a perspective view of the motor mounting screw member 31 of the exhaust fan device 100 according to the embodiment. [Diagram 5] FIG. 5A is a side view showing another embodiment of the motor mounting screw member 31 of the exhaust fan device 100 according to the embodiment, and FIG. 5B is a front view. [Figure 6] FIG. 6A is a front view showing a grooved washer 31f of another embodiment of the motor mounting threaded member 31 of the exhaust fan device 100 according to the embodiment, and FIG. 6B is a side view. [Figure 7] FIG. 7 is a side view showing a state in which the motor mounting screw member 31 of the exhaust fan device 100 according to another embodiment is fastened. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Next, an embodiment of the exhaust fan device 100 according to the present invention will be described in detail with reference to the drawings. Note that the embodiment and drawings described below are merely examples of some of the embodiments of the present invention, and are not intended to be used to limit the present invention to these configurations, and may be modified as appropriate without departing from the gist of the present invention.

[0022] A perspective view of an exhaust fan device 100 according to an embodiment is shown in Fig. 1. The exhaust fan device 100 according to the embodiment mainly includes a casing 10, a fan 20, a motor 30, a gripping member 40, a cover 50, a connecting member 60, and a switch 70, as shown in Fig. 1.

[0023] 2, the casing 10 mainly has an intake hole 11 for sucking in exhaust smoke from inside the store through a duct (not shown), mounting holes 12 for mounting the fan 20 and motor 30, etc., and an exhaust hole 13 for exhausting the exhaust smoke to the outside, the intake hole 11 is provided with a duct mounting fixture 11a for mounting an intake duct (not shown), and the exhaust hole 13 is provided with an exhaust duct mounting fixture 13a for mounting an exhaust duct (not shown). The casing 10 is for outdoor installation, and is attached to a wall surface so that at least the mounting hole 12 is exposed to the outside.

[0024] The fan 20 may be, but is not limited to, a so-called propeller fan, a turbo fan, a sirocco fan, etc. In this embodiment, as shown in Fig. 1, an example in which a sirocco fan is used is shown.

[0025] The motor 30 is an electric drive source for driving the fan 20 described above, and is attached to the fan 20 by a motor attachment screw member 31, which is a screw member that can be manually removed from the fan 20. Therefore, the motor 30 can be manually attached to the fan 20 without using any tools. Examples of the manually removable motor attachment screw member 31 include a butterfly bolt, a thumb screw, a knob bolt, etc., which have a gripping part on the head of the screw member that is large enough to be turned by hand. Of course, the manually removable motor attachment screw member 31 is not limited to these. By attaching the fan 20 and the motor 30 by such a manually removable motor attachment screw member 31, even non-experts can separate and assemble the fan 20 and the motor 30. Furthermore, the manually removable screw member is preferably processed so that a washer 31a such as a washer or a spring washer does not come off the motor attachment screw member 31, as shown in FIG. 4. For example, the washer 31a can be prevented from easily coming off by inserting the washer 31a into the washer 31a before threading the bolt and then threading the bolt. By using such a motor mounting screw member 31, it is possible to reduce the possibility that the washer 31a will come off the motor mounting screw member 31 and be lost after the motor mounting screw member 31 is removed. Furthermore, it is preferable to use a motor mounting screw member 31 that can prevent insufficient and excessive tightening, as shown in FIG. 5. The motor mounting screw member 31 shown in FIG. 5 is attached in the order of the grip portion 31b, the threaded portion 31c, and the spring washer 31d and the grooved washer 31f between the grip portion 31b and the threaded portion 31c from the grip portion 31b side. A cylindrical body 31g formed in a cylindrical shape is provided from the grip portion 31b to the vicinity of the grooved washer 31f, and a spring 31i is inserted inside, and a sphere 31h made of a metal such as iron is provided at the tip of the cylindrical body 31g. The grooved washer 31f has grooves 31j formed radially from the center, as shown in FIG. 6. As the screw of the motor mounting threaded member 31 thus produced is tightened, the gap between the grooved washer 31f and the gripping portion 31b narrows, and the grooved washer 31f becomes immobile due to friction with the fan 26, as shown in FIG.If the gripper 31b is continued to be turned in this state, the sphere 31h will move so as to rotate on the surface of the grooved washer 31f while fitting into the groove 31j. At this time, a clicking sound will be heard as the sphere 31h moves through the groove 31j, and when the sound is heard, the tightening is complete. This makes it possible to prevent the motor mounting screw member 31 from being insufficiently or overtightened.

[0026] The gripping member 40 is a member attached to the fan 20 or the motor 30, and allows the fan 20 and the motor 30, which are integrated with the motor mounting screw member 31, to be easily held by hand from outside the casing 10. In this embodiment, the gripping member 40 is formed in a circular dish shape with an opening 41 at the center, and a motor fixing hole 42 is provided around the periphery. A part of the motor 30 is inserted into this opening 41, and the motor 30 is fixed to the motor fixing hole 42 with a bolt 81 through a bolt hole 33 formed in a rib of the motor 30. In this embodiment, the motor 30 and the gripping member 40 use a screw member that can be removed by a tool, rather than a screw member that can be removed by hand. This is because the motor 30 is prone to rattling and needs to be fitted in an accurate position, and the motor 30 itself is not easily soiled, so a structure that cannot be easily removed is adopted. Of course, this does not exclude the use of a screw member that can be removed by hand. The state in which the fan 20 and the motor 30 are attached is shown in FIG. 3. The gripping member 40 has handles 43 on opposite sides (left and right ends) of the dish shape of the gripping member 40, so that the fan 20 and the motor 30 integrated with the gripping member 40 can be held with both hands. The gripping member 40 has a plurality of gripping member fixing holes 44 on its outer periphery, and can be fixed to the screw hole 15 provided in the casing 10 by a gripping member fixing screw member 46 that can be manually removed through the gripping member fixing holes 44. Therefore, both the attachment and detachment of the fan 20 and the motor 30 to the casing 10 can be performed manually without requiring specialized tools. Examples of the gripping member fixing screw member 46 include a wing bolt, a thumb screw, a knob bolt, etc., which have a gripping portion on the head of the screw member that is large enough to be turned by hand. Of course, the present invention is not limited to these. In addition, a positioning pin 47 is provided so that even a person who is not familiar with the exhaust fan device 100 does not fix the fan 20 and the motor 30 in an inappropriate position relative to the casing 10. On the other hand, the casing 10 is provided with a positioning hole 17 into which the positioning pin 47 can be inserted.The gripping member 40 is fitted so that the positioning pin 47 is inserted in line with the positioning hole 17, thereby allowing the fan 20 and the motor 30 to be attached to the casing 10 at an appropriate position. In this embodiment, the positioning pin 47 also serves as a mounting bolt for the handle 43, and the head of the mounting bolt is formed of a long, thin cylindrical pin. In addition, the positioning pin 47 functions as a temporary positioning means for temporarily positioning the fan 20, the motor 30, and the gripping member 40 in the inserted state with respect to the casing 10 without falling due to frictional force by fitting it into the casing 10, and the gripping member 40 can be fixed by turning the gripping member fixing screw member 46 with hands released from the fan 20, the motor 30, and the gripping member 40. Therefore, since it is not necessary to support and fix the relatively heavy fan 20, the motor 30, and the gripping member 40, a person who is not familiar with the exhaust fan device 100 can easily remove and install them by himself.

[0027] The cover 50 is a member for protecting the fan 20, the motor 30, and the gripping member 40, and can be attached to the casing 10 so as to cover the fan 20, the motor 30, and the gripping member 40. The cover 50 is not essential and can be omitted. The attachment member for attaching the cover 50 also uses a screw member that can be attached and removed manually. Therefore, the cover 50 can be removed and assembled without the need for special tools.

[0028] The connection member 60 is a member for supplying the store's power to the motor 30, and is connected to the wiring 35 of the motor 30. The connection member 60 is connected to a breaker for the exhaust fan device 100 in the store.

[0029] The switch 70 is a switch that turns on / off the power supply to the exhaust fan device 100. Usually, the exhaust fan device 100 is not provided with the switch 70, and the power supply to the exhaust fan device 100 is usually cut off by a breaker in the store. However, there are many breakers in a store, and it may be difficult to know which breaker the exhaust fan device is. In addition, it may be difficult to know where the breaker is located in the store. However, according to the exhaust fan device 100 of this embodiment, the switch 70 for the exhaust fan power supply is provided on the exhaust fan device 100 side, so that when cleaning or disassembling the exhaust fan device 100, the switch 70 can be turned on / off from the exhaust fan device 100 side. Therefore, it is not necessary to turn off the breaker in the store by turning off the switch 70 on the exhaust fan side without turning off the breaker in the store. In order to facilitate easy operation of the switch 70 depending on the installation position of the exhaust fan device 100, the switch installation position 71 can be located in two places, the upper left and the lower right of the casing 10 in Fig. 1. Of course, the switch may be installed in a position other than these.

[0030] The exhaust fan device 100 manufactured as described above is used as follows. First, when the exhaust fan device 100 installed outside the store becomes dirty and needs to be cleaned, the cover 50 is removed. This allows the switch 70 to be operated, so the switch 70 is turned off to cut off the power supply to the exhaust fan device 100. After confirming that the motor 30 has completely stopped, the gripping member fixing screw member 46 is manually removed. This allows the fan 20, motor 30, and gripping member 40 to be removed as a unit from the casing 10. At this time, the gripping member 40 is provided with a handle 43, so it can be removed with both hands. In this state, the casing 10 can be cleaned. If necessary, the fan 20, motor 30, and gripping member 40 can be removed from the motor 30 and the fan 20 cleaned. Thus, with the exhaust fan device 100 of the present invention, the fan 20, which becomes the dirtiest, can be removed from the casing 10 without the need for special tools, making it easy for even someone who is not familiar with the exhaust fan device 100 to remove and clean it. Also, even someone who does not understand the power supply system in the store can turn off the power supply to the exhaust fan device 100 with the switch 70 on the exhaust fan device 100 side, preventing a situation in which the power supply to the exhaust fan device 100 is not turned off.

[0031] After the cleaning is completed, the fan 20 is manually attached to the gripping member 40 to which the motor 30 is attached by using the gripping member fixing screw member 46. In this state, the positioning pin 47 is fitted into the positioning hole 17 to attach the fan 20 to the casing 10. In this state, the fan 20, the motor 30, and the gripping member 40 are provisionally positioned relative to the casing 10, and are held in the positioning hole 17 by the positioning pin 47, and are held in the casing 10 without falling. Thus, the gripping member fixing screw member 46 can be fixed to the casing 10 with the hands released from the fan 20, the motor 30, and the gripping member 40. After that, the switch 70 is turned on and the cover 50 is attached to complete the cleaning. [Industrial Applicability]

[0032] As shown in the above-mentioned embodiment, the present invention can be industrially used as an exhaust fan device for stores. [Explanation of symbols]

[0033] 110... casing, 11... suction hole, 11a... duct mounting fixture, 12... mounting hole, 13... exhaust hole, 13a... exhaust duct mounting fixture, 15... screw hole, 17... positioning hole, 20... fan, 30... motor, 31... motor mounting screw member, 31a... washer, 31b... gripping portion, 31c... threaded portion, 31d... washer, 31f... grooved washer, 31g... cylindrical body, 31 h...sphere, 31j...groove, 32...rib, 33...bolt hole, 35...wiring, 40...gripping member, 41...opening, 42...motor fixing hole, 43...handle, 44...gripping member fixing hole, 46...gripping member fixing screw member, 47...pin, 50...cover, 60...connecting member, 70...switch, 71...switch mounting position, 81...bolt, 100...exhaust fan device

Claims

1. A casing attached to a wall surface so that at least a portion of the casing is exposed to the outside; A fan disposed within the casing; a motor attached to the fan; a gripping member having a handle attached to the fan or the motor, The fan and the motor are fixed to each other by a motor mounting screw member that can be manually attached or removed. the gripping member and the motor are fixed to each other by a manually removable screw member through a motor fixing hole provided around the gripping member and a bolt hole formed in a rib of the motor; 13. An exhaust fan device according to claim 12, wherein said gripping member and said casing are fixed to each other by a screw member for fixing said gripping member which can be manually attached or removed.

2. 2. The exhaust fan device according to claim 1, wherein the gripping member is provided with a temporary positioning means for temporarily positioning the gripping member so that the gripping member does not fall off before being fixed to the casing.

3. 3. The exhaust fan device according to claim 2, wherein the temporary positioning means is a positioning pin that is inserted into a plurality of positioning holes formed in the casing and the positioning hole provided in the gripping member and is formed so as not to fall off due to frictional force.

4. 4. The exhaust fan device according to claim 1, wherein the gripping member is provided with two handles so that the gripping member can be held with both hands.

5. the motor mounting threaded member has a gripping portion, a threaded portion, and a grooved washer provided between the gripping portion and the threaded portion, the grooved washer having grooves formed radially from a center, The gripping portion is provided with a cylindrical body that is formed in a cylindrical shape up to the vicinity of the grooved washer, 5. The exhaust fan device according to claim 1, wherein a spring having a sphere disposed on a side of the grooved washer is inserted inside the cylindrical body.

6. The exhaust fan device according to any one of claims 1 to 5, The present invention further includes a cover capable of covering the motor, the fan, and the gripping member, 11. An exhaust fan device according to claim 10, wherein the cover is fixed by a screw member that can be manually attached or removed.

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