Rectification plate mounting structure of range hood and range hood

Abstract

The rectifying plate mounting structure is applied to an exhaust fume collecting hood, and comprises a rectifying plate, the rectifying plate is mounted on the exhaust fume collecting hood through a touch buckle assembly, and the touch buckle assembly comprises a touch buckle seat and a touch buckle piece; the touch buckle seat is provided with two clamping jaws which are arranged at an interval and extend upwards, at least one of two opposite side walls of the two clamping jaws is provided with a limiting concave part, the touch buckle piece comprises a fixed seat and a limiting buckle, the fixed seat is provided with a mounting cavity for arranging the limiting buckle and a movable opening penetrating from the outer side wall of the fixed seat to the mounting cavity, and the limiting buckle is arranged in the mounting cavity. The limiting buckle is provided with a protruding block, the fixing base is limited between the two clamping jaws of the touch buckle base, the protruding block penetrates through the movable opening and is correspondingly clamped into the limiting concave portions of the clamping jaws, and an installation opening allowing the limiting buckle to be installed into the installation cavity is formed in the end, abutting against the exhaust fume collecting hood, of the fixing base. The touch buckle assembly has the advantages that the assembly structure of the touch buckle assembly is effectively simplified, and cleaning treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of range hoods, in particular to a rectifier plate mounting structure of a range hood and the range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Generally, range hoods include top suction type and side suction type, and top suction type range hoods are more and more widely used due to their advantages such as being neat, light, and taking up little space. Top suction type range hoods generally include a smoke hood, a fan housing located on the smoke hood, and a centrifugal fan installed in the fan housing. For example, a Chinese invention patent application with application number CN200910096759.3 (authorization announcement number CN101514823B) discloses a range hood with a smoke guide plate, including a body, a smoke hood, and a smoke guide plate. An air inlet is provided at the bottom of the smoke hood, and a smoke guide plate (also called a rectifier plate) is arranged opposite to the air inlet and maintains a predetermined distance from the smoke hood, thereby forming a smoke channel for the smoke to pass through between the smoke guide plate and the smoke hood.

[0003] In order to facilitate the convenient installation of the smoke guide plate, in the Chinese utility model patent application with application number CN201921095741.7 (authorization announcement number: CN210861244U), a structure in which the smoke guide plate is detachably connected to the smoke hood (a push rod fixed on the smoke hood) through a snap-on assembly is disclosed, wherein a snap-on is provided at the end of the output end of the electric push rod, and snap-on sockets for cooperating with the snap-on are respectively provided on the upper surface of the corresponding smoke baffle plate facing the smoking port.

[0004] The existing range hoods with oil guide plates have improved the oil fume extraction performance due to the application of the smoke guide plates, but the installation structure of the snap-on assembly of the smoke guide plates still has certain shortcomings. Usually, the snap-on socket uses a through hole that passes through the slot from the outer surface of the socket body as an installation channel for installing springs and steel balls. After the springs and steel balls are installed, a screw plug is used to limit the position at the outer port. In order to prevent the screw plug from being exposed, some also use decorative stickers to cover it. This installation method, on the one hand, has more design parts, and a complex structure, many small parts, a long installation labor time, and a high cost. On the other hand, oil stains are also easy to accumulate in the gap between the ordinary exposed screw plug and the edge of the decorative sticker, which greatly prolongs the user's cleaning time and reduces the user's experience.

[0005] Therefore, the rectifier plate mounting structure of the existing range hood needs to be further improved. Utility Model Content

[0006] The first technical problem to be solved by the utility model is to provide a rectifier plate installation structure for a range hood in view of the current status of the prior art, wherein the rectifier plate installation structure can effectively simplify the assembly structure of the snap assembly and facilitate cleaning.

[0007] The second technical problem to be solved by the utility model is to provide a range hood using the above-mentioned rectifier plate installation structure in view of the current status of the prior art.

[0008] The technical solution adopted by the utility model to solve the first technical problem is: a rectifier plate mounting structure of a range hood, applied to a smoke collecting hood;

[0009] include:

[0010] The rectifier plate is mounted on the smoke collecting hood via a snap assembly, wherein the snap assembly comprises a snap seat provided on the rectifier plate and a snap member provided on the smoke collecting hood and capable of being snap-fitted with the snap seat;

[0011] The buckle seat has two claws that are arranged at intervals and extend upward, and at least one of the two opposite side walls of the two claws is provided with a limiting recess. The buckle member includes a fixed seat and a limiting buckle. The fixed seat has an installation chamber for accommodating the limiting buckle and a movable opening that passes from the outer wall of the fixed seat to the installation chamber. The limiting buckle has a protrusion. The fixed seat is limited between the two claws of the buckle seat, and the protrusion passes through the movable opening and is correspondingly engaged in the limiting recess of the claw. The end of the fixed seat that abuts against the smoke hood is formed with an installation opening for the limiting buckle to be installed in the installation chamber.

[0012] In order to ensure the reliability of the snap fit between the buckle piece and the buckle seat, limiting recesses are provided on the two opposite side walls of the two claws, and the two opposite outer side walls of the fixed seat penetrate into the installation chamber to form two corresponding movable openings. The limiting buckle has two protrusions protruding in opposite directions, and the two protrusions respectively pass through the two movable openings and are snapped into the limiting recesses of the corresponding claws.

[0013] In order to simplify the structure of the limit buckle, the main body of the limit buckle is in a V-shape with the opening facing downward, including two arms arranged at an angle, and the above-mentioned protrusions are provided on the opposite side walls of the two arms. It is conceivable that there can also be two limit buckles, each of which is provided with the above-mentioned protrusions. The limit buckle with a V-shaped structure design also makes it easy for the operator to pull the limit buckle out of the installation chamber, thereby improving the convenience of replacing accessories.

[0014] Generally, the limit buckle can be made of metal or plastic, which has its own elastic force for deformation restoration. In order to further improve the reliability of the snap fit between the buckle part and the buckle seat, a spring is also provided between the two arms of the limit buckle. Under the action of the spring, the two arms always tend to move away from each other.

[0015] In order to prevent the spring from easily falling off the limit buckle and to facilitate the installation of the limit buckle, spring and other components into the installation chamber, positioning grooves are provided on the opposite side walls of the two arms of the limit buckle, and the two ends of the spring are correspondingly arranged in the two positioning grooves.

[0016] In order to be connected with the smoke collecting hood, a screw connection hole for installing a screw is also opened on the top of the fixing base.

[0017] In order to ensure a secure connection with the smoke hood, there are two screw connection holes, which are arranged on two corresponding sides of the installation chamber.

[0018] In order to prevent the limit buckle from moving up and down or shaking, when the limit buckle is installed in place in the installation chamber, the upper end of the limit buckle abuts against the smoke collecting hood.

[0019] In order to facilitate the plug-in fit between the snap member and the snap seat, a guiding slope or a guiding arc is constructed on the outer wall surface of the protrusion of the limit buckle.

[0020] As an improvement, the fixing seat is T-shaped as a whole, including a transverse section and a vertical section extending downward from the middle of the transverse section, and two movable openings are correspondingly arranged on two opposite side walls of the vertical section, and when the snap-fastener and the snap-fastener seat are in the state of being snapped in place, the tops of the two claws abut against the bottom of the transverse section. After the snap-fastener and the snap-fastener seat are plugged in, because the tops of the claws abut against the bottom of the transverse section, the limit position of the upward movement of the snap-fastener seat can be limited, thereby ensuring the convenience and accuracy of the direct snap-fastening operation of the two.

[0021] The technical solution adopted by the utility model to solve the second technical problem is: a range hood, including a smoke collecting hood, an air inlet is opened at the bottom of the smoke collecting hood, a rectifier plate is provided below the air inlet of the smoke collecting hood, and the rectifier plate and the smoke collecting hood are connected through the above-mentioned rectifier plate mounting structure of the range hood.

[0022] Compared with the prior art, the advantages of the utility model are as follows: a buckle piece is arranged on the smoke hood, which includes a fixing seat and a limit buckle, and the limit buckle can be arranged in the installation chamber of the fixing seat through the installation port, and there is no need to open a through hole for installing a screw plug as in the prior art. Compared with the existing buckle installation structure, this combination of hidden limit buckles reduces the number of components such as screw plugs and screw plug decorative stickers, making the appearance simple, the appearance components do not have multiple colors, and are more unified and beautiful; on the other hand, it also reduces the accumulation of oil stains in the gaps at the edges of ordinary exposed screw heads and decorative stickers, reduces the user's cleaning time, and improves the cleaning experience and aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a three-dimensional structural schematic diagram of a range hood according to an embodiment of the utility model (only the fume hood and related components are shown);

[0024] Figure 2 for Figure 1 A vertical cross-sectional view of the range hood cut along the front-to-back direction;

[0025] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the mid-range hood without the rectifier plate;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the fastener of an embodiment of the utility model;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the fastener of the embodiment of the utility model from another angle;

[0028] Figure 6 This is an exploded view of the fastener of the embodiment of the utility model;

[0029] Figure 7 It is a cross-sectional view of a fixing seat of a fastener according to an embodiment of the utility model;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the rectifier plate according to an embodiment of the utility model. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0033] Figure 1-Figure 8The installation structure of the rectifier plate of the range hood of the utility model and a preferred embodiment of the range hood are shown. The range hood includes a casing and a centrifugal fan arranged in the casing. The casing generally includes a fan frame and a fume hood 2 arranged at the bottom of the fan frame. The inner cavity of the fan frame is connected with the inner cavity of the fume hood 2. An air inlet is provided on the front side wall of the fume hood 2, and external smoke can enter the fume hood through the air inlet. The centrifugal fan is arranged in the fan frame. When the centrifugal fan is running, negative pressure is generated, and external oil smoke can be sucked into the fume hood 2 through the air inlet. An oil net is also provided at the air inlet of the fume hood 2 for filtering oil smoke. An oil cup 24 is provided at the bottom of the fume hood 2. The oil cup 24 is a long strip extending left and right, and is used to receive the oil stains flowing down from the fume hood 2. The fume hood 2 is provided with a rectifier plate 1 corresponding to the lower part of the air inlet, and the rectifier plate 1 is basically arranged horizontally. The front part of the rectifier plate 1 is connected to the smoke collecting hood 2 through two groups of buckle components arranged at intervals on the left and right, and the rear part is connected to the smoke collecting hood 2 through hook 12 components arranged at intervals on the left and right.

[0034] The bottom of the smoke hood 2 is provided with a support arm 23 extending downward, and the bottom of the support arm 23 has a horizontally extending crossbar 230. The rear part of the back of the rectifier 1 is provided with a hook 12 bent and extended backward. When installing, the hook 12 of the rectifier can be hung on the crossbar 230 of the smoke hood 2. The above-mentioned hook 12, support arm 23 and crossbar 230 together constitute the above-mentioned hook 12 assembly.

[0035] See also Figure 2 The buckle assembly includes a buckle seat 11 and a buckle member 20. The buckle seat 11 is installed on the back of the rectifier plate 1, and includes two claws 111 extending upward side by side, and the extension direction of the claws 111 is substantially perpendicular to the rectifier plate 1. The two claws are provided with limiting recesses 1110 on the opposite side walls, that is, the openings of the two limiting recesses 1110 are arranged face to face.

[0036] See also Figure 4-Figure 7 The buckle member 20 includes a fixing seat 200 and a limit buckle 21. The fixing seat 200 is flat as a whole, and has a mounting chamber 201 for accommodating the limit buckle 21. The fixing seat 200 is T-shaped as a whole, and includes a transverse section 2001 and a vertical section 2002 extending downward from the middle of the transverse section 2001.

[0037] An installation opening 203 for the limiting buckle 21 to be installed in the installation chamber 201 is formed at one end of the fixing seat 200 that abuts against the smoke hood 2 (i.e., the top area of ​​the horizontal section 2001). The installation chamber 201 occupies both the horizontal section 2001 and the vertical section 2002 of the fixing seat 200. The two opposite vertical side walls of the vertical section 2002 are each provided with a movable opening 202 that is in communication with the above-mentioned installation chamber 201. During installation, the vertical section 2002 of the fixing seat 200 is limited between the two claws 111 of the buckle seat 11, and the two protrusions 210 of the limiting buckle 21 pass through the movable opening 202 and are correspondingly engaged in the limiting recess 1110 of the claw 111. The protrusion 210 is a columnar structure with a guiding arc surface (of course, it can also be set as a wedge-shaped structure with a guiding inclined surface), which can form a guiding match with the claw 111, so that the vertical section 2002 of the fixed seat 200 can be easily inserted between the two claws 111, and the protrusion 210 can be easily removed from the limiting recess 1110 of the claw 111, so that the claw 111 and the vertical section 2002 of the fixed seat 200 can be smoothly separated.

[0038] The main body of the limit buckle 21 is V-shaped with an opening facing downward, including two arms 211 arranged at an angle, and the above-mentioned protrusions 210 are arranged on the opposite side walls of the two arms 211. The V-shaped structure design of the limit buckle 21 also makes it easy for operators to pull the limit buckle 21 out of the installation chamber 201, thereby improving the convenience of replacing accessories.

[0039] When installing the limit buckle 21, the limit buckle 21 can be directly pushed into the installation chamber 201 of the fixing seat 200. After it is installed in place, the protrusion 210 can be exposed from the movable opening 202 of the fixing seat 200. At the same time, the upper end of the main body of the limit buckle 21 is basically flush with the top surface of the fixing seat 200. In this way, after the fixing seat 200 is fixed on the smoke hood 2, the upper end of the limit buckle 21 can be against the bottom wall of the smoke hood 2, avoiding the limit buckle 21 from moving up and down or shaking.

[0040] Generally, the main body of the limit buckle 21 can be constructed as an elastic buckle structure that can bend and deform under the action of external force and automatically reset after the external force is released. For example, the main body of the limit buckle 21 can be made of metal or plastic. After being installed in place, the two arms 211 of the limit buckle 21 can be pressed against the front and rear side walls of the installation chamber 201 to provide elastic force for deformation and reset. In the preferred embodiment, in order to further improve the reliability of the snap fit between the latch piece 20 and the latch seat 11, a spring is provided between the two arms 211 of the limit latch 21, and the elastic piece 22 adopts a spring. In order to prevent the spring from easily falling off the limit latch 21, and to facilitate the installation of the limit latch 21, the spring and other components into the installation chamber 201, positioning grooves 212 are provided on the opposite side walls of the two arms 211 of the limit latch 21, and the two ends of the spring are correspondingly arranged in the two positioning grooves 212. The two arms 211 always have a tendency to move away from each other under the action of the spring. In this way, the reliability of the snap fit between the latch piece and the latch seat is ensured.

[0041] See also Figure 5 The top of the transverse section 2001 of the fixing seat 200 is also provided with a screw connection hole 204 for installing a screw. Specifically, two screw connection holes 204 are provided on the top of the fixing seat 200, and the two screw connection holes 204 are correspondingly located at two end positions far away from the top of the fixing seat 200. A through hole is also provided on the wall of the smoke hood 2, and the screw 25 can pass through the through hole from the inside of the smoke hood 2 and connect with the screw connection hole 204 on the fixing seat 200.

[0042] When installing the latch piece 20, it is only necessary to insert the limit buckle 21 into the installation chamber 201 of the fixing seat 200 from top to bottom. After being inserted into place, the protrusion 210 of the limit buckle 21 is inserted into the movable opening 202. The lower end of the limit buckle 21 is against the bottom wall of the installation chamber 201, and the upper end is basically flush with the top of the fixing seat 200. Then, the fixing seat 200 is fixed to the smoke hood 2 by two screws 25. The lower surface of the smoke hood 2 after being fixed can further prevent the limit buckle 21 from falling out. The overall parts are further reduced, the installation steps are also simplified, and there is no gap for decorative stickers on the outside, which is convenient for cleaning.

Claims

1. A rectifier plate mounting structure for a range hood, applied to a fume collecting hood (2); include: A rectifier plate (1) is mounted on the smoke collecting hood (2) via a snap-on assembly, wherein the snap-on assembly comprises a snap-on seat (11) provided on the rectifier plate (1) and a snap-on member (20) provided on the smoke collecting hood (2) and capable of being snap-fitted with the snap-on seat (11); The invention is characterized in that: the buckle seat (11) has two claws (111) which are arranged at intervals and both extend upwards, at least one of the two side walls opposite to each other on the two claws (111) is provided with a limiting recess (1110), the buckle member (20) comprises a fixed seat (200) and a limiting buckle (21), the fixed seat (200) has an installation chamber (201) for accommodating the limiting buckle (21) and a movable opening extending from the outer wall of the fixed seat (200) to the installation chamber (201). (202), the limiting buckle (21) has a protrusion (210), the fixed seat (200) is limited between the two claws (111) of the buckle seat (11), the protrusion (210) passes through the movable opening (202) and is correspondingly engaged in the limiting recess (1110) of the claw (111), and the end of the fixed seat (200) that abuts against the smoke hood (2) is formed with an installation opening (203) for the limiting buckle (21) to be installed in the installation chamber (201).

2. The rectifier plate mounting structure of the range hood according to claim 1, characterized in that: The two opposite side walls of the two clamping claws (111) are provided with limiting recesses (1110), the two opposite outer side walls of the fixing seat (200) penetrate through the installation chamber (201) to form two corresponding movable openings (202), and the limiting buckle (21) has two protrusions (210) protruding in opposite directions, and the two protrusions (210) respectively pass through the two movable openings (202) and are clamped in the limiting recesses (1110) of the corresponding clamping claws (111).

3. The rectifier plate mounting structure of the range hood according to claim 2, characterized in that: The main body of the position-limiting buckle (21) is in a V-shape with its opening facing downward, and comprises two supporting arms (211) arranged at an angle, and the above-mentioned protrusions (210) are arranged on the opposite side walls of the two supporting arms (211).

4. The rectifier plate mounting structure of the range hood according to claim 3, characterized in that: A spring is also provided between the two supporting arms (211) of the position-limiting buckle (21), and the two supporting arms (211) always tend to move away from each other under the action of the spring.

5. The rectifier plate mounting structure of the range hood according to claim 4, characterized in that: Positioning grooves (212) are provided on opposite side walls of the two supporting arms (211) of the position limiting buckle (21), and the two ends of the spring are correspondingly arranged in the two positioning grooves (212).

6. The rectifier plate mounting structure of a range hood according to any one of claims 1 to 5, characterized in that: The top of the fixing seat (200) is also provided with a screw connection hole (204) for installing a screw.

7. The rectifier plate mounting structure of the range hood according to claim 6, characterized in that: There are two screw connection holes (204), which are respectively arranged on two corresponding sides of the installation chamber (201).

8. The rectifier plate mounting structure of a range hood according to any one of claims 1 to 5, characterized in that: When the limiting buckle (21) is installed in place in the installation chamber (201), the upper end of the limiting buckle (21) abuts against the smoke collecting hood (2).

9. The rectifier plate mounting structure of a range hood according to any one of claims 1 to 5, characterized in that: The outer wall surface of the protrusion (210) of the position-limiting buckle (21) is configured to form a guiding inclined surface or a guiding curved surface.

10. The rectifier plate mounting structure of a range hood according to any one of claims 1 to 5, characterized in that: The fixing seat (200) is T-shaped as a whole, and comprises a transverse section (2001) and a vertical section (2002) extending downward from the middle of the transverse section (2001). Two movable openings (202) are correspondingly arranged on two opposite side walls of the vertical section (2002). When the latch member (20) and the latch seat (11) are in a locked state, the tops of the two claws (111) are against the bottom of the transverse section (2001).

11. A range hood, comprising a fume hood (2), wherein an air inlet is provided at the bottom of the fume hood (2), and a rectifying plate (1) is provided below the air inlet of the fume hood (2), wherein: The rectifying plate (1) and the fume collecting hood (2) are connected via the rectifying plate mounting structure of the range hood according to any one of claims 1 to 10.

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