Rolling screen type auxiliary filtering device for range hood

Abstract

The invention discloses a rolling screen type auxiliary filtering device for a range hood. The scrolling type auxiliary filtering device for the range hood is characterized in that the scrolling type auxiliary filtering device for the range hood comprises a main body part which comprises a connecting panel part detachably connected and installed on one side of the lower portion of the range hood, and a first rotary supporting part and a second rotary supporting part which are installed perpendicular to the two sides of the connecting panel part and face each other at a preset interval; the rotary drum part is rotatably arranged between the first rotary supporting part and the second rotary supporting part; a filter cartridge inserted into the drum part and mounted on the drum part in a replaceable manner, the filter cartridge rotating together with the drum part when the drum part rotates, the filter disc being rolled up and covering a range hood filter mounted on the lower surface of the range hood for first filtering an oil component in air sucked in front of the range hood filter; and the filter fixing part is detachably connected to the other side of the range hood and is used for fixing and supporting the free end of the filter disc so as to keep the filter disc covering the range hood filter.

Description

Technical Field

[0001] The present invention relates to an auxiliary filtering device for a range hood. More specifically, the present invention relates to a scroll-type auxiliary filtering device for a range hood that can extend the cleaning and replacement cycle of the range hood filter by simply installing it on the range hood, covering the filter of the range hood with a scroll-type unfolded filter, and making the use of the range hood more hygienic. Background Art

[0002] Generally, a range hood is a ventilation device that discharges odors generated in the kitchen, such as odors generated during cooking, to the outside, and is installed on the top or around heating cooking appliances such as gas stoves or induction cookers.

[0003] The range hood is composed of a range hood body having an air inlet formed on the lower side and an air outlet formed on the upper side, and an exhaust fan is provided inside the range hood body. Driven by the exhaust fan, air including odors is inhaled through the air inlet and discharged through the air outlet. At the same time, in order to illuminate food during cooking, a lighting lamp is provided on the side of the range hood body.

[0004] In addition, the range hood is provided with a range hood filter at the air inlet, so that oil or pollutants contained in the air are filtered by the range hood filter, and only the air filtered of oil or pollutants is discharged.

[0005] However, since the oil components or pollutants in these existing range hoods are only filtered by the range hood filter, the oil components will accumulate in the range hood filter in a short time, thereby reducing the filtering performance of the range hood filter. The oil components will fall onto the gas stove or the pot, causing a very unhygienic problem.

[0006] At the same time, in such a short period of time, due to the contamination of the range hood filter, the cleaning cycle of the range hood filter is shortened, the range hood filter ages relatively quickly, and the replacement cycle is also relatively fast, resulting in a shortened lifespan of the range hood filter.

[0007] In addition, since pollutants such as oil stain components will quickly accumulate on the range hood filter, correspondingly, the probability of a fire occurring due to the attachment of oil stain components to the range hood filter will increase, and the fire safety of the kitchen will be greatly reduced.

[0008] [Prior Art Documents]

[0009] Registered Patent No. 10-1852796

[0010] Registered Utility Model 20-0481659

[0011] Registered Patent 10-1016244 Summary of the Invention

[0012] Technical problem to be solved

[0013] The present invention is proposed in view of the above-mentioned many problems, and its purpose is to provide a scroll-type auxiliary filtering device for a range hood, which unfolds and installs a filter sheet in a scroll manner to cover the range hood filter installed on the range hood itself, extends the cleaning and replacement cycles of the range hood, and makes the use of the range hood more hygienic.

[0014] In addition, another purpose of the present invention is to provide a scroll-type auxiliary filtering device for a range hood, which can easily replace and use the filter cartridge by rolling the filter drum into a filter cartridge, not only reducing the purchase burden on users, but also enabling non-professionals to easily replace and install the filter cartridge on the main body, improving the convenience of use.

[0015] In addition, another purpose of the present invention is to provide a scroll-type auxiliary filtering device for a range hood, which can not only conveniently adjust the tension of the filter cartridge, but also unfold the filter cartridge with a full service life at a predetermined interval for convenient cutting and use, thereby extending the service life of the filter cartridge, shortening the replacement cycle, and reducing the inconvenience of users in replacing the filter cartridge.

[0016] However, the purpose of the present invention is not limited to this, and includes purposes or effects that can be determined from the solution or embodiment of the task even if not explicitly mentioned.

[0017] Technical solution

[0018] To achieve the above purpose, the scroll-type auxiliary filtering device for a range hood of the present invention is characterized in that it includes: a main body part, including: a connection panel part detachably connected and installed on one side below the range hood, and a first rotary support part and a second rotary support part vertically installed on both sides of the connection panel part and facing each other at a predetermined interval; a drum part rotatably installed between the first rotary support part and the second rotary support part; a filter cartridge for inserting into the drum part and replaceably installed on the drum part, which rotates together when the drum part rotates, and the filter sheet is rolled up and covers the range hood filter on the lower surface of the range hood for first filtering the oil components in the air inhaled before the range hood filter; and a filter fixing part detachably connected to the other side of the range hood and fixing and supporting the free end of the filter sheet to keep the filter sheet covering the range hood filter.

[0019] It further includes a tension adjustment part arranged on one side of the main body part to adjust the tension of the filter sheet by rotating the drum part through the rotation operation of the user.

[0020] The lengths of the main body part, the drum part, and the filter fixing part are adjusted according to the width of the filter cartridge.

[0021] The main body portion includes a first connecting device which is detachably connected to one side of the lower surface of the range hood, and a second connecting device is provided at the filter fixing portion, and the second connecting device is detachably connected to the other side of the range hood.

[0022] The filter cartridge includes: a roller shaft made of polycarbonate material and formed into a tubular shape for inserting into the drum portion; and filter sheets formed to be wound around the roller shaft and configured to be unrolled from the roller shaft.

[0023] The drum portion includes: a drum body made of a metal material, formed into a tubular shape for inserting and engaging on the roller shaft; a rotating shaft portion connected to one side of the drum body and installed to be connected to the first rotating support portion; a length variable shaft module connected to the other side of the drum body, installed to be connected to the second rotating support portion, and configured to have a variable length to facilitate separation and connection of the drum portion.

[0024] The filter fixing portion includes: a filter fixing frame which is integrally mounted on the lower surface of the range hood and formed with a sheet slit hole through which the free end of the filter sheet passes, and the sheet slit hole has a filter fixing surface for fixing the filter sheet; a filter fixing member which is installed to connect the two ends of the filter fixing frame and has a pressing wing, and the pressing wing presses and fixes the filter sheet to the filter fixing surface in a state where the filter sheet passes through the sheet slit hole.

[0025] The pressing wing is configured to be inclined in the sheet pulling-out direction when the filter sheet is rolled up and passes through the sheet slit hole, so that the filter sheet can move in the sheet pulling-out direction, and the filter sheet is configured to restrict the reverse movement in the sheet pulling-out direction.

[0026] The filter fixing portion further includes a cutting device mounted on the filter fixing frame and used for cutting the filter sheet.

[0027] The above cutting device includes: a sliding member configured to slidably move along a track formed in the length direction to the bottom of the filter fixing frame; a cutter provided on the sliding member and used for cutting the filter sheet while moving together with the sliding member.

[0028] A cutter guide portion is provided in the sheet slit hole for guiding the movement of the cutter to cut the filter sheet.

[0029] Beneficial effects

[0030] As described above, by installing the range hood filter that covers the range hood, pollutants such as oil components generated during the cooking process can be first filtered by the filter sheet of the present invention and then filtered by the range hood filter, thereby significantly extending the replacement cycle or cleaning cycle of the range hood filter, and having the effect of making it more convenient for users to manage the range hood filter.

[0031] In addition, since the present invention adopts a rolling curtain installation method, the filter sheet is rolled out from the filter cartridge and installed to cover the range hood filter, so it can be applied to a variety of range hoods regardless of the size of different range hood filters, having the effect of greatly improving compatibility.

[0032] In particular, the present invention can not only be conveniently installed on the range hood and used, but also can conveniently purchase only the filter element in the concept of the filter cartridge, and the remaining parts can be reused and continuously replaced for use, greatly reducing the burden on the purchaser, and having the effect of enabling users to use the auxiliary filtering device more economically.

[0033] In addition, since the filter sheet of the present invention can be used by taking it out of the filter cartridge and fixing it to the filter fixing part multiple times, when the service life of the filter sheet is exhausted, by only replacing one filter cartridge, removing the filter sheet from the filter cartridge, and using a new filter sheet part to cover the range hood filter, not only can the end of the filter sheet be easily fixed to the filter fixer, but also the used filter sheet part can be simply cut and discarded, so the use convenience is greatly improved.

[0034] In addition, the present invention also provides a tension adjustment part, and the user can appropriately adjust the tension of the filter sheet rolled out from the filter cartridge to keep the filter sheet in a tensioned state, and it is configured and installed at the lower part of the range hood filter, with good filtering effect. When the range hood starts and stops, the filter sheet will not flutter or move, maintaining a firm installation state, and preventing the rotating part of the drum part from being damaged due to the filter sheet being rolled out multiple times and malfunctioning. Brief Description of the Drawings

[0035] Figure 1 is a separation schematic diagram of the rolling screen type auxiliary filtering device for a range hood according to an embodiment of the present invention.

[0036] Figure 2 is Figure 1 a separation schematic diagram of the main body part shown.

[0037] Figure 3 is Figure 1 a separation schematic diagram of the drum part shown.

[0038] Figure 4It is a cross-sectional view of the state in which the drum part in the scroll-type auxiliary filtering device for a range hood according to an embodiment of the present invention is installed on the main body part.

[0039] Figure 5 It is a side view of the main body part for explaining the structure of the tension adjusting part of the present invention.

[0040] Figure 6 It is a combined cross-sectional view of the drum part and the filter cartridge of the present invention.

[0041] Figure 7 It is Figure 1 An exploded perspective view of the filter fixing part shown.

[0042] Figure 8 It is a cross-sectional view of the filter fixing part of the present invention.

[0043] Figure 9 It is a view showing the side of the filter fixing frame of the filter fixing part of the present invention.

[0044] Figure 10 It is a cross-sectional view of the filter fixing part of the present invention.

[0045] Figure 11 It is an example usage diagram of the scroll-type range hood auxiliary filtering device of the present invention. Detailed implementation manners

[0046] Through the following preferred embodiments in conjunction with the attached drawings, the above objects, other objects, features and these aspects of the present invention will be easily understood. However, the present invention is not limited to the embodiments described here and can be embodied in other forms. On the contrary, the embodiments introduced here are provided to make the disclosed content thorough and complete, and the idea of the present invention can be fully conveyed to those skilled in the art.

[0047] In this specification, when it is mentioned that one component is located on another component, it means that it can be directly formed on the other component or a third component can be inserted therebetween. Additionally, in the drawings, for the effective illustration of the technical content, the thickness of the components is exaggerated.

[0048] The embodiments described herein will be described with reference to cross-sectional and / or plan views that are ideal examples of the present invention. In the drawings, the thickness of the film and the region are exaggerated for effective description of the technical content. Therefore, the form of the example drawings may vary according to manufacturing techniques and / or tolerances, etc. Accordingly, the embodiments of the present invention are not limited to the specific shapes shown, and also include shape variations generated according to the manufacturing process. For example, an etched region shown at a right angle may be circular or have a shape with a predetermined curvature. Therefore, the regions shown in the drawings have properties, and the shapes of the regions shown in the drawings are intended to show the specific shapes of the element regions, rather than limiting the categories of the present invention. In various embodiments of the present specification, terms such as 1, 2, etc. are used to describe various components, but these components should not be limited by these terms.

[0049] These terms are only used to distinguish one component from another. The embodiments described and shown herein also include their complementary embodiments. The terms used in this specification are intended to describe the embodiments and are not intended to limit the present invention. In this specification, the singular forms also include the plural forms unless specifically mentioned in the sentence. The "including" and / or "comprising" used in the specification do not exclude the presence of the mentioned components or the addition of one or more other components.

[0050] When describing the following specific embodiments, various specific contents have been written to describe and help understand the present invention more specifically. However, readers with knowledge in this field to understand the present invention can recognize that the present invention can be used even without these specific contents. In some cases, in order to avoid confusion in explaining the present invention, parts that are well-known but not closely related to the present invention are not described when describing the present invention.

[0051] Hereinafter, with reference to Figures 1 to 11 , the scroll type range hood auxiliary filtering device of the embodiments of the present invention will be described.

[0052] The scroll type auxiliary filtering device 100 for a range hood of the present invention includes a main body part 110, a drum part 120, a filter cartridge 130, and a filter fixing part 200.

[0053] The main body part 110 includes: a connection panel 111 installed on one side of the range hood h to install the auxiliary filtering device 100 on the range hood h; and a first rotary support part 113 and a second rotary support part 114, the first rotary support part 113 and the second rotary support part 114 are respectively connected to both end portions of the connection panel 111 perpendicular to each other and face each other.

[0054] In the present invention, the connection panel 111 can be single and can be configured to be length adjustable.

[0055] The connection panel 111 is composed of an "A"-shaped panel with an orthogonal cross-section, and a connection device 119 for connecting to the lower surface of the range hood h is provided on the upper surface.

[0056] The connection device 119 is configured to include a clip 119a and an attachment member 119b. The upper end of the connection panel 111 is inserted and connected to the clip 119a, and the attachment member 119b is connected to the upper end of the clip 119a to connect and fix the clip 119a to the lower surface of the range hood h.

[0057] The attachment member 119b can be composed of various attachment devices, such as magnets and double-sided tapes. In addition, in the present invention, the connection device 119 further includes a suspension member 119c. The suspension member 119c bends upward perpendicular to the rear end of the clip 119a and is suspended on one side of the range hood h, so as to further prevent the connection panel 111 from separating from the range hood h.

[0058] The connection device 119 of the present invention is not limited to being composed of the clip 119a, the attachment member 119b, and the suspension member 119c, and can be configured in the main body portion 110, and the main body portion 110 can be detachably connected to the range hood.

[0059] Although not shown, in the case where the main body portion 110 is made of a synthetic resin material such as plastic, when the main body portion 110 is manufactured by plastic molding such as injection molding, the connection device includes a metal plate attached to a magnet. Through an injection insert, the metal plate can be configured to be integrated with the main body portion 110. The inserted metal plate in the main body portion 110 is configured as the connection device, and an attachment member such as a magnet can be magnetically attached to the metal plate, and the main body portion 110 can be configured to be magnetically attached to the range hood.

[0060] In addition, the connection device 119 can be composed only of connection members such as double-sided tapes and magnets, so that the connection member directly connects the connection panel 11 to the range hood h. In addition, the connection panel 111 can be composed of various connection devices such as screws and bolts for connecting the connection panel 111 to the range hood h.

[0061] In addition, the connection panel 111 can be configured such that when the upper surface is attached to the rear side of the range hood h, its back surface is in close contact with the kitchen wall portion where the range hood h is installed, and a connection device can also be configured on the back surface of the connection panel 111. By attaching the back surface of the connection panel 111 to the kitchen partition wall portion, the main body portion 110 can be more firmly fixed to the range hood h.

[0062] In the present invention, the connection panel 111 can be composed of a single panel with a fixed length, and can be configured in a form capable of adjusting the length according to the width and length of the filter cartridge 120.

[0063] As Figure 1 and Figure 2 shown, the connection panels 111 can be arranged in pairs on the left and right sides, and can be configured to be connected by connection panels 112 of adjustable length.

[0064] Each of the connection panels 111 has a panel connection groove 111a for inserting the connection panel 112, so that the length of the connection panel 111 is adjusted according to the degree of insertion of the connection panel 112.

[0065] After adjusting the depth of insertion of the connection panel 112 into the panel connection groove 111a, the overlapping portions of the connection panel 112 and the connection panel 111 can be connected by screws or the like to fix the state of length adjustment.

[0066] The first rotation support portion 113 is formed at one end of the connection panel 111, and a shaft hole 113a is formed on its inner surface.

[0067] The second rotation support portion 114 is formed on the other side of the connection panel 111. A wheel receiving groove 115 is formed inside the second rotation support portion 114. A wheel shaft groove 115a is formed at the center inside of the wheel receiving groove 115. A button movement hole 115b for moving in the left and right directions is formed at the lower end of the wheel receiving groove 115.

[0068] In addition, a cover plate 116 for covering the wheel receiving groove 115 is connected and installed in the second rotation support portion 114, and a shaft insertion port 116a is formed in the cover plate 116.

[0069] The drum portion 120 is provided between the first rotation support portion 113 and the second rotation support portion 114, and is configured to be rotatable relative to the first rotation support portion 113 and the second rotation support portion 114, and a replaceable filter cartridge 130 is installed in an insertion manner so that the filter cartridge 130 is unfolded in a rolling curtain manner.

[0070] The drum portion 120 is made of a metal material such as aluminum, and includes a tubular drum body 121, a rotation shaft portion 124 connected to one side of the drum body 121 and installed to be connected to the first rotation support portion 113, and a length variable shaft module 125 connected to the other side of the drum body 121 and installed to be connected to the second rotation support portion 114, and is configured to have a variable length so as to be easily separated from and connected to the drum portion 120.

[0071] The drum body 121 can be composed of a single drum body with a fixed length, and can be configured to have an adjustable length.

[0072] Reference Figure 3, the drum body 121 of the present invention can be arranged in pairs on the left and right sides, and can be configured to be connected between them by a connecting rod 122 to adjust the length. The drum body 121 and the connecting rod 122 are configured to be connected to each other by a connecting bracket 123.

[0073] The connecting bracket 123 can be configured to have insertion connection parts 123a, 123b on both sides. One side is inserted into the drum body 121 and connected, and the other side is inserted into the connecting rod 121 and connected.

[0074] The present invention includes a rotation adjustment protrusion and a rotation adjustment groove to prevent relative rotation of the drum body 121, the connecting rod 122, and the connecting bracket 123, and the rotation adjustment protrusion is inserted into the rotation adjustment groove at the connection part to prevent relative rotation between them.

[0075] Specifically, rotation adjustment protrusions 121a, 122a are formed along the length direction on the inner circumferential surfaces of the drum body 121 and the connecting rod 122, and rotation adjustment grooves 123c for inserting the rotation adjustment protrusions 121a, 122a are formed on the outer circumferences of the insertion connection parts 123, 123b formed on both sides of the connecting bracket 123.

[0076] At the same time, first anti-rotation grooves 121b, 122b are formed along the length direction on the respective outer circumferential surfaces of the drum body 121 and the connecting rod 122 to prevent relative rotation of the drum body 121 when inserted into the filter cartridge 130, and a second anti-rotation groove 123d connected to the first anti-rotation grooves 121b, 122b formed in the drum body 121 and the connecting rod 122 is formed in the middle part of the connecting bracket 123.

[0077] A rotation shaft part 124 is inserted and connected to one side of the drum body 121, and it is a structure for forming a rotation shaft on the side of the drum body 121. A connection protrusion part 124a inserted and connected to the drum body 121 is formed inside the rotation shaft part 124, and a shaft 123b protrudes on the outside.

[0078] A second rotation adjustment groove 124c is formed on the outer circumferential surface of the connection protrusion part 124a so that the rotation adjustment protrusion 121a formed on the inner circumferential surface of the drum body 121 can be inserted, thereby preventing relative rotation when the rotation shaft part 124 is connected to the drum body 121.

[0079] The shaft 123b is inserted into the shaft hole 113a so that one side of the drum body 121 on which the filter cartridge 130 is installed can rotate relative to the first rotation support part 113.

[0080] The variable-length shaft module 125 is integrally installed on the other side (right end) of the drum body 121 and is configured to be able to increase or decrease the length of the shaft, thereby shortening the length of the shaft, connecting to the second rotary support portion 114, and then, the rotary shaft member 124 connected to one side of the drum body 121 can be inserted and connected to the shaft hole 113a formed in the first rotary support portion 113.

[0081] Reference Figure 3 and Figure 4 , the variable-length shaft module 125 includes a shaft guide 126, an operating shaft 127, and an elastic member 128.

[0082] The shaft guide 126 is formed of a tubular body. A guide hole 126a is formed inside the shaft guide 126. The guide hole 126a guides the linear movement and rotation of the operating shaft 127 in the front and rear directions along the length direction. A forced insertion portion 126b is formed in the middle portion of the shaft guide 126. The forced insertion portion 126b is inserted into the open other side (right end) of the drum body 121 in a forced insertion manner. An extension tube portion 126c is formed extending from the inner end of the forced insertion portion 126c. The extension tube portion 126c is inserted into the elastic member 128 to enable the more stable linear movement and rotation of the operating shaft 127.

[0083] A third rotation limiting groove 126d is formed on the outer end of the forced insertion portion 126b. The third rotation limiting groove 126d prevents the rotation adjusting protrusion 121a from being inserted and the forced insertion portion 126b from rotating relative to the drum body 121 when the forced insertion portion 126b is inserted into the drum body 121.

[0084] The operating shaft 127 is inserted into the inside of the shaft guide 126, that is, into the guide hole 126a, to perform a linear sliding motion along the guide hole 126a or to be rotatable relative to the guide hole 126a. A spring fixing groove 127c for fixing the position of the inner end of the elastic device 128 is formed at the inner end of the operating shaft 127. A key portion 127b is formed at the outer end of the operating shaft 127.

[0085] The elastic member 128 is formed of a helical spring. The operating shaft 127 is inserted into its inside, and the extension tube portion 126c is inserted into its outside. One end of the elastic member 128 is inserted into and fixed to the spring fixing groove 127a, and the other end of the elastic member 128 is fixed to the outer end of the extension tube portion 126c.

[0086] In the variable-length shaft module 125, when the operating shaft 127 is pressed, the elastic member 128 elongates, and the operating shaft 127 enters deeper into the inside of the drum body 121, so that the length of the entire drum part 120 can be reduced. When the external force pressing the operating shaft 127 is further removed, it returns to its original position by the elastic restoring force of the elastic member 128. Therefore, the drum part 120 can be easily installed on the first rotary support part 113 and the second rotary support part 114.

[0087] The variable-length shaft module 125 can be connected and installed by inserting and connecting the forced insertion part 126b to the right end of the drum body 121. The key part 127b is connected to the second rotary support part 114 side and can be configured to be connected in a key connection manner. Specifically, the key part 127b is configured to be key-connected to the tension adjustment part 140 provided in the second rotary support part 114.

[0088] In addition, when the operating shaft 127 rotates relative to the drum body 121, the elastic member 128 is twisted and generates an elastic force to rotate the operating shaft 127 back to its original position and return.

[0089] That is, when the filter cartridge 130 installed on the drum part 120 is deployed in a state where the drum part 120 is installed between the first rotary support part 113 and the second rotary support part 114, the drum body 121 rotates relative to the operating shaft 127, and the elastic member 127 is twisted, thereby providing elasticity to return the filter cartridge 120 to its original state and rotate. At this time, if the free end of the filter sheet 133 deployed from the filter cartridge 130 is fixed to the filter fixing part 200 fixed to the other end of the range hood, the filter sheet 133 generates tension.

[0090] The filter cartridge 130 includes a roller shaft 131 and a roll-shaped filter sheet 133 wound around the roller shaft 131.

[0091] Reference Figure 3 and Figure 6 and, the roller shaft 131 is made of polycarbonate PC material and is formed in a tubular shape so that the drum body 121 can be inserted and connected. Its inner peripheral surface has first anti-rotation grooves 121b, 122b formed in the drum body 121 and the link 122 to allow relative rotation with the drum body 121 in the length direction, and the anti-rotation protrusion 132 is inserted into the second anti-rotation groove 123d formed in the connection bracket 123.

[0092] The filter sheet 133 is configured to be rolled up along the rotation of the roller shaft 131.

[0093] As Figure 11As shown, in the present invention, the drum part 120 equipped with the filter cartridge 130 is installed on the main body part 110, the main body part 110 is adhered and fixed to one side part (rear side part) of the range hood h, the filter fixing part 200 is installed on the other side part (front side part) of the range hood h. In this state, by pulling out the filter sheet 133 from the filter cartridge 130 and then fixing the free end of the filter sheet 133 to the filter fixing part 200, the filter sheet 133 is arranged to cover the range hood filter f of the range hood from the lower side. The gas containing pollutants such as oil components generated during cooking is first filtered by the filter sheet 133 and then supplied to the range hood filter f.

[0094] On the other hand, in the present invention, the main body part 110 is first fixedly installed on one side of the range hood h, the filter fixing part 200 is fixedly installed on the other side of the range hood h. By installing the drum part 120 combined with the filter cartridge 130 onto the main body part 110 and then pulling the filter sheet 133 to fix the end part (free end) of the filter sheet 133 to the filter fixing part 200 for use.

[0095] The present invention is used only by alternatively installing the filter cartridge 130 on the drum part 120, and the remaining main body part 110, drum part 120 and filter fixing part 200 except the filter cartridge 130 can be reused semi-permanently.

[0096] In the present invention, the filter sheet 133 provided on the filter cartridge 130 can be configured to cover the length of the range hood filter f once, but can also be configured to cover the range hood filter f multiple times. In this case, if the filter sheet 133 is deployed multiple times to cover the range hood filter f while the filter cartridge 130 is installed on the drum part 120, the elastic member 128 arranged on the length variable shaft module 125 may be overly distorted and damage the components connected thereto, thus equipment failure may occur.

[0097] Therefore, the present invention is configured with a tension adjusting part 140 in the main body part 110 to adjust the tension of the filter sheet 133 by rotating the drum part 120 according to the operation of the user.

[0098] The tension adjusting part 140 is arranged on the second rotation support part 114 of the main body part 110 and includes a tension adjusting wheel 141, a ratchet 142, a shaft connection hole 143, a sliding button 145, an elastic device 146 and a stopper 147.

[0099] The tension adjusting wheel 141 is rotatably accommodated in a wheel accommodation groove 115 formed on the inner surface of the second rotation support part 114. At this time, a wheel shaft 141a is formed at the outer center of the tension adjusting wheel 141, and this wheel shaft 141 is inserted into a wheel shaft groove 115a formed in the wheel accommodation groove 115, and the tension adjusting wheel 141 is configured to be able to rotate within the wheel accommodation groove 115.

[0100] In addition, the circumferential portion of the tension adjustment wheel 141 is configured to be exposed to the outside through the wheel exposure portion 114a, and the wheel exposure portion 114a is configured to be connected to the wheel receiving groove 115 on one side of the second rotation support portion 114, so that the user can rotate the tension adjustment wheel 141 exposed to the outside through the wheel exposure portion 114a.

[0101] The ratchet wheel 142 is configured to be integrally formed with a side portion of the tension adjusting wheel 141 .

[0102] The shaft connection hole 163 is formed through the center of the tension adjustment wheel 141 and is configured to be inserted into the key portion 127 b and axially connected.

[0103] At this time, the operating shaft 127 of the variable-length shaft module 125 is inserted through the shaft insertion port 116a formed in the cover plate 116, and the key portion 127b is inserted into the shaft connecting hole 163 for key connection. Therefore, when the tension adjustment wheel 141 rotates, the operating shaft 127 of the variable-length shaft module 125 rotates together.

[0104] The slide button 145 is configured to be able to slide left and right along a button moving hole 115 b configured to be connected to the wheel receiving groove 115 at the lower side of the second rotation support part 114 .

[0105] The stopper 147 is arranged at the upper end of the sliding button 145 and is connected so as to be movable up and down relative to the sliding button 145. An elastic device 146 composed of a coil spring is arranged between the sliding button 145 and the stopper 147, so that the stopper 147 is elastically supported on the upper side of the sliding button 145 by the elastic device 146.

[0106] The stopper 147 is configured to engage with the ratchet 142 to prevent the ratchet 142 from rotating in only one direction and not in the other direction. Figure 5 When the user pushes the tension adjustment wheel 141 in one direction (i.e., the upper side) and rotates, the ratchet 142 also rotates together, so the stopper 147 is pushed downward by the teeth of the ratchet 142, and then sequentially inserted into the teeth of the ratchet 142 by the elastic force of the elastic device 146, rotates through repeated actions, and the tension adjustment wheel 141 is configured to be prevented from rotating in the downward direction due to the teeth of the ratchet 142 being stuck on the stopper 147. The operation of these ratchet 142 and the stopper 147 is the same as that of the flywheel mechanism.

[0107] In the present invention, when the sliding button 145 moves to the right side of the button moving hole 116b, the stopper 147 also moves to the right side and disengages from the ratchet wheel 142, so that the tension adjusting wheel 141 can freely rotate in one direction (upward) or the other direction (downward), and when the sliding button 145 moves to the left side of the button moving hole 116b, the stopper 147 also moves to the left and is gear-connected to the teeth of the stopper 147 and the ratchet wheel 142, and is configured to rotate only in one direction (upward direction).

[0108] When the portion of the filter sheet 133 for covering the range hood filter f reaches its service life and the filter sheet 133 is further pulled and unfolded, the user first moves the sliding button 145 to the right side of the button moving hole 116b to disengage the stopper 147 from the ratchet wheel 142, thereby releasing the gear connection. When the operating shaft 127 rotates relative to the shaft guide 126 together with the tension adjusting wheel 141 under the elastic restoring force of the elastic member 128, the torsional state of the elastic member 128 is released, and the tension of the filter sheet 133 is released.

[0109] In this case, by moving the sliding button 145 to the left, the stopper 147 is re-gear-connected to the ratchet wheel 142, and then the filter sheet 133 is pulled out from the filter cartridge 130 and wound out to be fixedly installed on the filter fixing portion 200. In this case, by rotating the tension adjusting wheel 141, the operating shaft 127 is rotated, thereby adjusting the degree of twist of the elastic member 128, and thus adjusting the tension of the filter sheet 133.

[0110] The filter fixing portion 200 is detachably connected to the other side of the range hood and is used to fix and support the free end of the filter sheet 133 to keep the filter sheet 133 covering the range hood filter f.

[0111] Refer to Figures 7 to 10 , the filter fixing portion 200 includes a filter fixing frame 210 fixedly installed on the other side of the range hood h, a filter fixing member 220 arranged along the length direction on the filter fixing frame 210 to fix the filter sheet 133, and a cutting device 230 installed on the filter fixing frame 210 to cut the filter sheet 133.

[0112] In the present invention, the filter fixing frame 210 may be composed of a single filter fixing frame with a fixed length, or may be composed of a plurality of filter fixing frames 211, 212 as shown in the drawings, and its length can be adjusted according to the width and length of the filter cartridge 120.

[0113] The connecting device 213 can be disposed at opposite ends of the filter fixing frames 211, 212 to connect a plurality of filter fixing frames 211, 212 together. The connecting device 213 can be composed of a connecting protrusion and a connecting groove, and a connecting protrusion is formed on one side of opposite ends of the plurality of filter fixing frames 211, 212, and a connecting groove is formed on the other side, and can be configured to be connectable to each other.

[0114] By adjusting the number of filter fixing frames 211, 212 connected, the length of the filter fixing frame can be adjusted. For example, the filter fixing frames 211 on both sides are combined in a directly connected manner, or the first filter fixing frames 211 on both sides and the second filter fixing frame 212 are connected therebetween, and filter fixing frames of various lengths can be formed.

[0115] Insertion fixing holes 211a are provided on both upper sides of the filter fixing frame 210, and a connecting device 217 for connecting the filter fixing frame 210 to the range hood h can be provided in the insertion fixing holes 211a. The connecting device 217 is inserted and connected to the insertion fixing holes 211a, and a connecting member (not shown) such as a double-sided tape or a magnet is disposed on one side to connect the filter fixing frame 210 to the range hood h.

[0116] The filter fixing frame 210 is formed to penetrate left and right, front and back in the length direction, and a sheet slit hole 215 through which the filter sheet 133 passes is formed. At the upper end of the sheet slit hole 215, a filter fixing surface 215a and a tool guiding portion 215b are formed to be spaced apart by a predetermined gap in the front and back. The respective filter fixing surface 215a and the tool guiding portion 215b are formed on the upper end (ceiling surface) of the sheet slit hole 215 along the left and right length directions.

[0117] In addition, the filter fixing frame 210 includes a guide rail portion 214 for guiding the cutting device 230 to move downward to the sheet slit hole 215.

[0118] The filter fixing member 220 has both ends for connecting both sides of the sheet slit hole 215, and a pressing wing 224 for pressing and fixing the filter sheet 133 passing through the sheet slit hole 215 to the filter fixing surface 215a.

[0119] As Figure 10 shown, the pressing wing 224 is configured to be inclined in the sheet pulling-out direction, and the filter sheet 220 is rolled up and passes through the sheet slit hole 215 in the sheet pulling-out direction. Thus, the filter sheet 220 can move in the sheet pulling-out direction, but is configured to restrict the movement of the filter sheet in the direction opposite to the sheet pulling-out direction, i.e., in the direction of the main body portion 110 side.

[0120] Like the filter fixing frame 210, the filter fixing member 220 may also be composed of a single structure with a fixed length, and as shown in the figure, it may be composed of a plurality of filter fixing members 221 and 222, and may be configured in a form with adjustable length. For this purpose, the plurality of filter fixing members 221 and 222 may also be provided with connecting devices 223 at adjacent ends thereof, and are connected to each other through the connecting devices 223. The connecting device 223 may be composed of a connecting protrusion and a connecting groove, and the connecting protrusion is formed on one side of the opposite ends of the plurality of filter fixing members 221 and 222, and a connecting groove is formed on the other side, so that they can be connected to each other. For example, the first filter fixing members 221 on both sides may be directly connected to make their length shorter, and the first filter fixing members 221 on both sides and the second filter fixing member 222 intervening therebetween may also be configured to be longer by connecting them in a row.

[0121] The cutting device 230 is installed on the filter fixing frame 210 for cutting the filter sheet 133. The cutting device 230 includes: a sliding member 231 formed with a guide rail insertion groove 231a, which is inserted into a guide rail portion 214 constructed along the length direction at the lower end of the filter fixing frame 210 and moves left and right along the guide rail portion 214; a cutting tool 232, which is disposed at the upper end of the sliding member 231 and moves left and right together with the sliding member 231, and while being inserted into the inside of the tool guide portion 215b, moves along the tool guide portion 215b, and is also used for cutting the filter sheet 133 accommodated in the tool guide portion 215b.

[0122] Meanwhile, in the present invention, the filter fixing portion 200 further includes a wing elastic portion 240 configured to be connected to one end of the filter fixing member 220 and provide a predetermined pressure to press the filter fixing surface 215a by the pressing wing 224.

[0123] Reference Figure 8 and Figure 9 , the wing elastic portion 240 is configured to include a shaft connector 214 and a helical spring 243.

[0124] The shaft connector 214 is configured to be rotatably inserted into a connector receiving hole 216a formed on one side of the filter fixing frame 210, and a key hole 241a is formed at the inner end of the shaft connector 241, and is axially connected to a key shaft 221a provided at the end of the filter fixing member 220; the helical spring 243 is fixedly installed to surround the shaft connector 241, and the outer end 243a is inserted and fixed into a spring insertion groove 216b provided on the inner peripheral surface of the connector receiving hole 216a to provide an elastic force for rotating the shaft connector 214 connected to the filter fixing member 220 in one direction, so that the pressing wing 224 presses the filter fixing surface 215a.

[0125] In this structure, the elastic force of the coil spring 243 generates a force that rotates the shaft connector 214 in the connector receiving groove 216a, and the filter fixing member 220 coupled to the shaft connector 214 also generates a rotational force such that the pressing wing 224 presses the filter fixing surface 215a. Thus, the filter sheet 133 can be pressed and fixed on the filter fixing surface 215a by the pressing wing 224.

[0126] Reference numeral 213 is a cover plate that is connected to the side of the filter fixing frame 110 to cover the connector receiving groove 216a to prevent the shaft connector 214 from falling out of the connector receiving groove 216a.

[0127] As described above, the present invention has been shown and described in connection with preferred embodiments for explaining the principles of the present invention, but the present invention is not limited to the configurations and operations thus shown and described. On the contrary, those skilled in the art will well understand that many changes and modifications can be made to the present invention without departing from the spirit and scope of the appended patent claims. Therefore, all such appropriate changes, modifications, and equivalents should also be considered to fall within the scope of the present invention.

[0128] Industrial Applicability

[0129] As described above, the present invention can be widely applied to the industrial field related to range hood filters.

[0130] In the drawing

[0131] 110, main body portion 111, connection panel

[0132] 111a, connection slit 112, connection panel

[0133] 113, first rotation support portion 113a, shaft hole

[0134] 114, second rotation support portion 114a, wheel exposure portion

[0135] 115, wheel receiving groove 115a, wheel shaft groove

[0136] 115b, button movement hole 116, cover plate

[0137] 116a, shaft insertion port 119, first connection device

[0138] 119a, clip 119b, attachment member

[0139] 119c, suspension member 120, drum portion

[0140] 121, drum body 122, connecting rod

[0141] 123, connection bracket 124, rotating shaft portion

[0142] 125, length-variable shaft module 126, shaft guide

[0143] 126a, guide hole, 126b, forced insertion part

[0144] 126c, extension pipe part 126d, rotation limiting groove

[0145] 127, operating shaft 127a, spring fixing groove

[0146] 127b, key part, 128, elastic member

[0147] 130, filter cartridge, 131, roller shaft

[0148] 133, filter element, 140, tension adjusting part

[0149] 141 tension adjusting wheel, 141a, wheel shaft

[0150] 142, ratchet wheel 143, shaft connection hole

[0151] 145, sliding button 146, elastic device

[0152] 147, stopper, 200, filter fixing part

[0153] 210, filter fixing frame part, 213, connecting device

[0154] 214, guide rail part, 215, slit hole

[0155] 215a, filter fixing surface, 215b, tool guide part

[0156] 216, connector accommodating part, 216a connector accommodating hole

[0157] 216b, spring insertion groove, 217, second connecting device

[0158] 218, cover plate, 220, filter fixing member

[0159] 224, pressing wing 230, cutting device

[0160] 231, sliding member, 231a, guide rail insertion groove

[0161] 232, tool, 240, wing elastic part

[0162] 241, shaft connector, 243, helical spring

Claims

1. A scroll - type auxiliary filtering device for an oil - fume extractor, characterized in that, it includes: A main body part, including: a connection panel part detachably connected and installed on one side below the oil - fume extractor, and a first rotating support part and a second rotating support part installed perpendicular to both sides of the connection panel part and facing each other at a predetermined interval; A drum part rotatably installed between the first rotating support part and the second rotating support part; A filter cartridge for inserting into the drum part and replaceably installed on the drum part, which rotates together when the drum part rotates, and the filter sheet rolls up and covers the oil - fume extractor filter installed on the lower surface of the oil - fume extractor to first filter the oil components in the air inhaled before the oil - fume extractor filter; and A filter fixing part detachably connected to the other side below the oil - fume extractor and fixing and supporting the free end of the filter sheet to keep the filter sheet covering the oil - fume extractor filter.

2. The scroll - type auxiliary filtering device for an oil - fume extractor according to claim 1, characterized in that, it further includes: A tension adjusting part arranged on one side of the main body part, which rotates the drum part through the rotation operation of the user to adjust the tension of the filter sheet.

3. The scroll - type auxiliary filtering device for an oil - fume extractor according to claim 1, characterized in that, The lengths of the main body part, the drum part and the filter fixing part are adjusted according to the width of the filter cartridge.

4. The scroll - type auxiliary filtering device for an oil - fume extractor according to claim 1, characterized in that, The main body part includes a first connection device detachably connected to one side of the bottom of the oil - fume extractor, and the filter fixing part has a second connection device detachably connected to the other side of the bottom of the oil - fume extractor.

5. The scroll - type auxiliary filtering device for an oil - fume extractor according to claim 1, characterized in that, The filter cartridge includes: A roller shaft made of polycarbonate material and formed into a tubular shape for inserting into the drum part; and A filter sheet formed to be wound around the roller shaft and configured to unwind from the roller shaft.

6. The scroll - type auxiliary filtering device for an oil - fume extractor according to claim 5, characterized in that, The drum part includes: A drum body made of metal material, formed into a tubular shape for inserting and engaging on the roller shaft; A rotating shaft part connected to one side of the drum body and installed to be connected to the first rotating support part; A variable - length shaft module connected to the other side of the drum body, installed to be connected to the second rotating support part, and configured to have a variable length to facilitate the separation and connection of the drum part.

7. The scroll - type auxiliary filtering device for an oil - fume extractor according to claim 1, characterized in that, The filter fixing part includes: A filter fixing frame, which is integrally installed on the lower surface of the oil - fume extractor and formed with a sheet slit hole through which the free end of the filter sheet passes, and the sheet slit hole has a filter fixing surface for fixing the filter sheet. A filter fixing member, which is installed to connect both ends of the filter fixing frame and has a pressing wing, and the pressing wing presses and fixes the filter sheet to the filter fixing surface in a state where the filter sheet passes through the sheet slit hole.

8. The scroll type auxiliary filtering device for a range hood according to claim 7, wherein, the pressing wing is configured to be inclined in the sheet pulling-out direction when the filter sheet is rolled up and passes through the sheet slit hole, so that the filter sheet can move in the sheet pulling-out direction, and the filter sheet is configured to restrict the reverse movement in the sheet pulling-out direction.

9. The scroll type auxiliary filtering device for a range hood according to claim 7, wherein, the filter fixing portion further includes a cutting device installed on the filter fixing frame and used for cutting the filter sheet.

10. The scroll type auxiliary filtering device for a range hood according to claim 9, wherein, the above-mentioned cutting device includes: a sliding member, which is configured to slidably move along a track constructed in the length direction to the bottom of the filter fixing frame; a cutter, which is provided on the sliding member and is used for cutting the filter sheet while moving together with the sliding member.

11. The scroll type auxiliary filtering device for a range hood according to claim 10, wherein, a cutter guiding portion is provided in the sheet slit hole for guiding the movement of the cutter to cut the filter sheet.

Images