Waterway butt joint structure and range hood

Abstract

The utility model discloses a waterway butt-joint structure and a range hood, and relates to the technical field of range hood cleaning, the waterway butt-joint structure comprises a first butt-joint part, a second butt-joint part and an elastic sealing part which are respectively arranged in a box body and a water inlet assembly, a first via hole communicated with an inner cavity of the box body is arranged in the first butt-joint part in a penetrating manner, and a second via hole communicated with the inner cavity of the box body is arranged in the second butt-joint part; one port of the first via hole is formed in the upper end of the first butt joint part; a second via hole is formed in the second butt joint part in a penetrating mode, one port of the second via hole is formed in the lower end of the second butt joint part, the lower port of the second via hole is in butt joint with the upper port of the first via hole, and the elastic sealing part is located between the first butt joint part and the second butt joint part and surrounds the first via hole and the second via hole. According to the water way butt-joint structure, the first butt-joint part and the second butt-joint part are arranged in the box body, the assembling gap between the first butt-joint part and the second butt-joint part is sealed, so that a closed water inlet pipeline can be formed when water in the box body passes through the first via hole and the second via hole, normal negative pressure is maintained, and the water way butt-joint structure good in sealing performance is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of range hood cleaning, in particular to a water channel docking structure and a range hood. Background Art

[0002] The range hood uses high-temperature steam to clean the oil stains in the oil fume duct, soften and dissolve the oil stains, and discharge them with condensed water to achieve the effect of cleaning the oil net and the inner wall. Therefore, a box for holding water is required to provide a water source for oil fume cleaning.

[0003] In order for the water in the box to be absorbed normally, the water box and the water inlet assembly need to cooperate well while the water box is disassembled and assembled for easy water addition. Therefore, how to ensure that the water in the water box can be well connected with the water inlet assembly and smoothly enter the water while ensuring that the water box is easy to disassemble and assemble is an urgent problem to be solved. Utility Model Content

[0004] The main purpose of the utility model is to propose a water channel docking structure and a range hood, aiming to provide a docking structure that is easy to dock and has good sealing performance, so as to ensure good sealing between the water box and the water channel of the water inlet component and smooth water inlet.

[0005] In order to achieve the above-mentioned purpose, the water channel docking structure proposed in the utility model is used between the box body and the water inlet assembly of the range hood, and the water channel docking structure includes:

[0006] A first docking portion is provided on the box body, a first through hole is provided in the first docking portion, the first through hole is communicated with the inner cavity of the box body, and a port of the first through hole is formed at the upper end of the first docking portion; and

[0007] A second docking portion, used to be arranged on the water inlet assembly, wherein a second through hole is provided in the second docking portion, a port of the second through hole is formed at the lower end of the second docking portion, and the lower port of the second through hole is docked with the upper port of the first through hole;

[0008] An elastic sealing portion is installed on one of the first docking portion and the second docking portion. The elastic sealing portion is located between the first docking portion and the second docking portion and is arranged around the first via hole and the second via hole.

[0009] In one embodiment, one of the first docking portion and the second docking portion is provided with a docking protrusion, and the first via hole or the second via hole is provided through the docking protrusion;

[0010] The butting protrusion abuts against the elastic sealing portion.

[0011] One end of the first via hole is disposed on the docking protrusion;

[0012] The elastic sealing portion is disposed at the lower end of the second docking portion, and the elastic sealing portion is in sealing contact with the docking protrusion.

[0013] In one embodiment, the elastic sealing portion includes an elastic sealing pad disposed at a lower end of the second docking portion.

[0014] In one embodiment, a mounting groove is provided at the lower end of the second docking portion, and a port of the second via hole is provided at the bottom of the mounting groove;

[0015] The elastic sealing pad is installed in the installation groove.

[0016] In one embodiment, a sealing abutment portion is provided at the upper end of the elastic sealing pad, and the sealing abutment portion is arranged around the periphery of the second through hole and abuts against the bottom of the mounting groove; and / or,

[0017] One of the top of the elastic sealing pad and the bottom of the mounting groove is provided with a limiting protrusion, and the other is provided with a limiting groove; and / or,

[0018] A clamping portion is arranged on the side surface of the elastic sealing portion, and a matching portion clamped with the clamping portion is arranged on the inner side wall of the mounting groove.

[0019] In one embodiment, one of the docking protrusion and the elastic sealing portion is provided with a positioning protrusion, and the other is provided with a positioning groove.

[0020] In one embodiment, the positioning protrusion and the positioning groove are arranged in a ring shape and are arranged around the periphery of the first via hole and the second via hole.

[0021] In one embodiment, the first through hole is provided with a water suction pipe sealedly connected to the first through hole, and the water suction pipe is used to extend into the box body.

[0022] In one embodiment, the water suction pipe is integrally provided with the first docking portion; and / or,

[0023] A spacer is protrudingly provided at the lower end of the water suction pipe.

[0024] The utility model also provides a range hood, the range hood comprising:

[0025] The range hood body includes a water inlet assembly;

[0026] A water box assembly, comprising a box body; and,

[0027] A waterway docking structure, the waterway docking structure comprising:

[0028] A first docking portion is provided on the box body, a docking protrusion is formed on the upper end of the first docking portion, a first through hole is penetrated in the first docking portion, the first through hole is communicated with the inner cavity of the box body, and one end of the first through hole is provided on the docking protrusion; and,

[0029] The second docking portion is used to be arranged in the water inlet component, and a second through hole is penetrated in the second docking portion. A port of the second through hole is formed at the lower end of the second docking portion, and an elastic sealing portion arranged around the second through hole is provided at the lower end of the second docking portion. The lower port of the second through hole is docked with the upper port of the first through hole, and the elastic sealing portion is in sealing contact with the docking protrusion.

[0030] In one embodiment, the range hood further comprises an oil box assembly, and the oil box assembly and the water box assembly are arranged at intervals in the lateral direction at the bottom of the range hood body.

[0031] In one embodiment, a first mounting portion and a second mounting portion are provided at the bottom of the range hood;

[0032] The water box assembly is mounted on the first mounting portion, and the oil box assembly is mounted on the second mounting portion, wherein at least one of the first mounting portion and the second mounting portion is provided with a fool-proof structure.

[0033] In one embodiment, the upper side of the box body is opened, the box body has two ends in the lateral direction, and at least one end of the upper side of the box body is provided with a hanging portion extending toward one side of the box body;

[0034] The water box assembly further includes a cover body covering the opening, and the first docking portion is disposed on the cover body.

[0035] In the technical solution of the utility model, one end of the first through hole is arranged on the first docking part and docked with the lower end of the second through hole. By locating the elastic sealing part between the first docking part and the second docking part and arranging it around the first through hole and the second through hole, the assembly gap between the first docking part and the second docking part can be sealed, so that the water in the box body can form a closed water inlet pipeline when passing through the first through hole and the second through hole, maintain normal negative pressure, and provide a water channel docking structure with good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 A structural schematic diagram of an embodiment of a waterway docking structure provided by the utility model;

[0038] Figure 2 for Figure 1 The water channel docking structure is used for the structural schematic diagram of the water box and the water inlet assembly;

[0039] Figure 3 for Figure 2 Schematic cross-sectional view of ;

[0040] Figure 4 for Figure 1 A three-dimensional schematic diagram of the second docking portion and the elastic sealing portion;

[0041] Figure 5 for Figure 4 An exploded schematic diagram of the second docking portion and the elastic sealing portion;

[0042] Figure 6 for Figure 4 A three-dimensional schematic diagram of another viewing angle of the second docking portion and the elastic sealing portion;

[0043] Figure 7 for Figure 2 A three-dimensional schematic diagram of the water box and the first docking portion;

[0044] Figure 8 for Figure 7 A three-dimensional schematic diagram of the first docking portion;

[0045] Fig. 9 for Figure 8 An enlarged schematic diagram of point B in FIG.

[0046] Fig.10 A schematic structural diagram of an embodiment of a range hood provided by the utility model;

[0047] Fig.11 for Fig.10 A schematic diagram of the structure of the range hood main body and the first mounting part and the second mounting part;

[0048] Fig.12 for Fig.10 Schematic diagram of the structure of the guide member.

[0049] Description of Figure Numbers:

[0050] 100. Waterway docking structure; 1. first docking portion; 11. docking convex portion; a. first through hole; 1a. positioning groove; 13. water suction pipe; 14. spacer; c. air vent; 2. second docking portion; b. second through hole; 2a. mounting groove; 2b. limiting groove; 21. matching portion; 3. elastic sealing portion; 31. sealing abutment portion; 32. limiting convex portion; 33. holding portion; 34. positioning convex portion;

[0051] 200, range hood; 10, range hood body; 5, water inlet assembly; 20, water box assembly; 6, box body; 61, hanging portion; 62, mounting portion; 7, cover body; 30, oil box assembly; 81, first mounting portion; 82, second mounting portion; 101, smoke hood; 1011, rear side wall; 1012, side wall; 102, flow guide; 1021, upper rectifying portion; 1022, lower rectifying portion.

[0052] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0056] In the related art, the range hood uses high-temperature steam to clean the oil stains in the oil fume duct, softens and dissolves the oil stains, and can be discharged with condensed water to achieve the effect of cleaning the oil net and the inner wall. Therefore, a box for holding water is required to provide a water source for oil fume cleaning.

[0057] The utility model provides a range hood, aiming to provide a docking structure which is convenient for docking and has good sealing performance, so as to ensure good sealing between a water box and a water channel of a water inlet component and smooth water inlet.

[0058] See also Figures 1 to 3 In one embodiment of the utility model, the water channel docking structure 100 is used between the box body 6 and the water inlet assembly 5 of the range hood 200, and the water channel docking structure 100 includes a first docking part 1, a second docking part 2 and an elastic sealing part 3, the first docking part 1 is used to be arranged in the box body 6, and a first through hole a is penetrated in the first docking part 1, and the first through hole a is used to communicate with the inner cavity of the box body 6, and a port of the first through hole a is formed at the upper end of the first docking part 1; the second docking part 2 is used to be arranged in the water inlet assembly 5, and a second through hole b is penetrated in the second docking part 2, and a port of the second through hole b is formed at the lower end of the second docking part 2, and the lower port of the second through hole b is docked with the upper port of the first through hole a, and the elastic sealing part 3 is installed on one of the first docking part 1 and the second docking part 2, and the elastic sealing part is located between the first docking part 1 and the second docking part 2, and is arranged around the first through hole a and the second through hole b.

[0059] It should be noted that the first docking portion 1 can be a partial structure integrally formed with the box body 6, or can be an independent structure assembled with the box body 6. The specific design can be based on actual conditions, and the embodiments of this specification do not limit this.

[0060] The second docking portion 2 may also be a partial structure integrally formed with the water inlet assembly 5, or may be an independent structure assembled with the water inlet assembly 5. The specific design may be based on actual conditions, and the embodiments of this specification do not limit this.

[0061] It should also be noted that, since the water in the box body 6 is a consumable, it is necessary to add water to the box body 6 when the water is exhausted. Therefore, the box body 6 needs to be disassembled and filled with water, and then assembled with the range hood body 10, and connected with the water inlet component 5 of the range hood body 10, so that the water inlet component 5 can suck the water in the box body 6. Therefore, the docking form between the box body 6 and the water inlet component 5 should not only facilitate the user to disassemble and assemble the box body 6, but also ensure the sealing of the two after docking, so as to avoid the air pressure being unable to form a closed system or maintain sufficient negative pressure due to insufficient sealing between the two, thereby causing the water channel docking structure 100 to be unable to absorb water normally.

[0062] It can be understood that the first through hole a and the second through hole b also form a partial pipeline channel for water inlet, so the sealing between the first through hole a and the second through hole b needs to be ensured.

[0063] It should also be noted that the elastic sealing portion 3 is arranged around the first through hole a and the second through hole b, which can be understood as the elastic sealing portion 3 is arranged around the periphery of the first through hole a and the second through hole b, and the elastic sealing portion 3 is padded between the first docking portion 1 and the second docking portion 2; or, the elastic sealing portion 3 is arranged in the first through hole a or the second through hole b, the elastic sealing portion 3 is hollow, and a water passage is formed in the middle of the elastic sealing portion 3, the hollow part of the elastic sealing portion 3 is docked with the first through hole a or the second through hole b, and the first docking portion 1 directly abuts against the elastic sealing portion 3.

[0064] It can be understood that the elastic sealing portion 3 is specifically a material or structure with elasticity. In the present utility model, it can be a sealing pad or a sealing plug structure made of rubber material, or silicone and other specific materials.

[0065] In the technical solution of the utility model, one end of the first through hole a is arranged on the first docking part 1 and docked with the lower end of the second through hole b. By locating the elastic sealing part 3 between the first docking part 1 and the second docking part 2 and arranging it around the first through hole a and the second through hole b, the assembly gap between the first docking part 1 and the second docking part 2 can be sealed, so that the water in the box body 6 can form a closed water inlet pipeline when passing through the first through hole a and the second through hole b, maintaining normal negative pressure, so as to provide a water channel docking structure 100 with good sealing performance.

[0066] In an embodiment of the present invention, one of the first docking portion 1 and the second docking portion 2 is provided with a docking protrusion 11, and the first through hole a or the second through hole b is provided through the docking protrusion 11; the docking protrusion 11 abuts against the elastic sealing portion.

[0067] It should be noted that the “jointing protrusion 11 ” is a partial structure of the upper end of the first joint portion 1 or the lower end of the second joint portion 2 that is convexly arranged.

[0068] "The docking protrusion 11 abuts against the elastic sealing portion 3". When the two components are pressed and abutted together, the material of the elastic sealing portion 3 will deform to fill and seal the gap between the two components, thereby preventing liquid from penetrating or leaking through the gap.

[0069] It should be noted that in order to ensure the sealing between the box body and the water inlet assembly, when the box body and the water inlet assembly of the range hood are assembled, especially when they are assembled by push-and-slide fit, when the docking protrusion 11 is provided on the first docking part 1 or the second docking part 2, the elastic sealing part can avoid continuous interference with the first docking part 1 or the second docking part 2 when pushed horizontally, and interference will only be formed in the travel of the elastic sealing part and the docking protrusion 11 moving toward the aligned position after they are abutted against each other, thereby forming an interference fit and becoming a reliable sealing structure.

[0070] Specifically, since the first docking portion 1 is provided on the box body, and since the outer shell of the box body is relatively thin, and the elastic sealing portion will interfere during the assembly process, a fixing structure is required to fix the elastic sealing portion. Therefore, in the embodiment of the utility model, one end of the first via a is provided on the docking protrusion 11; the lower end of the second docking portion 2 is provided with the elastic sealing portion, and the elastic sealing portion is in sealing contact with the docking protrusion 11. In this way, a fixing structure for fixing the elastic sealing portion can be conveniently provided on the second docking portion 2, and only the docking protrusion 11 needs to be provided on the box body.

[0071] Because the elastic sealing portion 3 is arranged around the second through hole b, the elastic sealing portion 3 is sealed and abutted against the docking protrusion 11. In one embodiment, the elastic sealing portion 3 can be set as an O-ring, which can be arranged around the outer portion of the abutment between the docking protrusion 11 and the second docking portion 2.

[0072] See also Figures 3 to 6In this embodiment, the elastic sealing portion 3 includes an elastic sealing pad arranged at the lower end of the second docking portion 2. In this way, the elastic sealing pad is arranged between the first docking portion 1 and the second docking portion 2. By simply adjusting the distance between the second docking portion 2 and the docking protrusion 11, the elastic sealing pad can achieve the desired sealing effect.

[0073] It is understandable that the elastic sealing pad can be bonded to the lower end of the second docking portion 2, or during the assembly process, the elastic sealing pad can be directly clamped between the first docking portion 1 and the second docking portion 2, or the elastic sealing pad can be fixed to the lower end of the second docking portion 2 through a connecting structure. Of course, the connection method between the elastic sealing pad and the lower end of the second docking portion 2 is not limited to the above examples. Under the inspiration of the technical essence of the embodiments of this specification, technicians in the relevant field may also make other changes, but as long as the functions and effects achieved are the same or similar to those of the embodiments of this specification, they should be covered within the protection scope of the embodiments of this specification.

[0074] See also Figure 4 and Figure 5 In a specific embodiment, a mounting groove 2a is provided at the lower end of the second docking portion 2, and a port of the second through hole b is provided at the bottom of the mounting groove 2a; the elastic sealing pad is installed in the mounting groove 2a.

[0075] By setting the installation groove 2a, the inner wall of the installation groove 2a can limit the sealing gasket. During the installation process, when the first docking part 1 slides relative to the second docking part 2, if the elastic sealing gasket is abutted against the docking protrusion 11 and relative sliding occurs, the installation groove 2a can limit the surrounding side of the sealing gasket to avoid displacement of the elastic sealing gasket.

[0076] It can be understood that the elastic sealing gasket can be set to a clearance fit with the inner wall surface of the installation groove 2a; of course, it can also be set to an interference fit. When the elastic sealing gasket and the second docking part 2 are interference fit, the elastic sealing gasket can be clamped in the installation groove 2a and the connection is stable.

[0077] It should be noted that when assembling the water box, if the first docking part 1 slides relative to the second docking part 2, in order for the docking protrusion 11 on the first docking part 1 to approach each other with the elastic sealing part 3 during the sliding stroke, and in order for the elastic sealing part 3 to be able to achieve sealing contact with the docking protrusion 11, the elastic sealing part 3 needs to protrude from the upper end surface of the docking protrusion 11. Then, in the stroke in which the two are approaching each other, interference occurs between the elastic sealing part 3 and the docking protrusion 11.

[0078] In order to reduce the wear caused by assembly and avoid assembly difficulties, a chamfer can be set at the outer peripheral edge of the docking protrusion 11, or the docking protrusion 11 can be set in the form of a cone, and a guide slope can be formed on the peripheral side wall of the docking protrusion 11; of course, a chamfer can also be set at the outer peripheral edge of the elastic sealing part 3. It should be noted that the above two related technical features can be set at the same time or one of them can be set selectively.

[0079] For further information, see Figure 6 In the embodiment of the utility model, the upper end of the elastic sealing pad is provided with a sealing abutment portion 31, which is arranged around the periphery of the second through hole b and abuts against the bottom of the mounting groove 2a. Since the contact area between the sealing abutment portion 31 and the bottom of the mounting groove 2a is smaller, the local stress of the sealing abutment portion 31 can be increased, thereby improving the surface adaptability, reducing the leakage path, and making it easier to form a uniform sealing pressure, thereby improving the sealing effect.

[0080] For further information, see Figure 6 In the embodiment of the utility model, one of the elastic sealing part 3 and the second docking part 2 is provided with a limiting protrusion 32, and the other is provided with a limiting groove 2b. Preferably, one of the top of the elastic sealing pad and the bottom of the installation groove 2a is provided with a limiting protrusion 32, and the other is provided with a limiting groove 2b, and the limiting groove 2b is provided through the bottom of the installation groove 2a, and the limiting protrusion 32 can limit the elastic sealing part 3 in the limiting groove 2b.

[0081] Further, in order to make the elastic sealing portion 3 more stably fixedly connected to the second docking portion 2, please refer to Figure 5 In an embodiment of the utility model, a clamping portion 33 is provided on the elastic sealing portion 3, and the second docking portion 2 is provided with a matching portion 21 that is clamped with the clamping portion 33. It should be noted that one of the clamping portion 33 and the matching portion 21 includes a hook, and the other includes a slot. Of course, the clamping portion 33 and the matching portion 21 are not limited to the above-mentioned hook and slot cooperation, but can also be a buckle and a slot, or a hook and a hook. The clamping portion 33 and the matching portion 21 are not limited to the above-mentioned examples, and of course other possible shapes can be used. The specific shape can be determined according to the actual situation, and the embodiments of this specification do not limit this.

[0082] Specifically, when the elastic sealing portion 3 is configured as an elastic sealing gasket installed in the mounting groove 2a, the clamping portion 33 is provided on the side of the elastic sealing gasket, and the matching portion 21 is provided on the inner wall of the mounting groove 2a, so as to avoid the formation of an installation gap between the elastic sealing gasket and the bottom wall of the mounting groove 2a when the matching portion 21 is provided at the bottom of the mounting groove 2a.

[0083] Further, in order to enable the first through hole a and the second through hole b to be accurately aligned when the first docking portion 1 and the second docking portion 2 are docked, please refer to Figure 5 , Figure 8 and Fig. 9 In the embodiment of the utility model, one of the docking protrusion 11 and the elastic sealing part 3 is provided with a positioning protrusion 34, and the other is provided with a positioning groove 1a. In this way, when the first docking part 1 needs to be slidably assembled and aligned relative to the second docking part 2, when the positioning protrusion 34 is positioned in the positioning groove 1a, it means that the alignment of the two vias is completed.

[0084] It should be noted that, in one embodiment, the positioning protrusion 34 and the positioning groove 1a may be staggered with the first via hole a and the second via hole b, so that the positioning structure is formed beside the first via hole a and the second via hole b.

[0085] In this embodiment, the positioning protrusion 34 and the positioning groove 1a are arranged in an annular shape and are arranged around the periphery of the first through hole a and the second through hole b. Figure 3 When the positioning groove 1a is provided on the docking protrusion 11 and the positioning protrusion 34 is provided on the elastic sealing pad, the first via a is formed on the bottom wall of the positioning groove 1a, and the second via b is formed on the positioning protrusion 34. In this way, a positioning structure can be formed in a larger area, and the positioning cooperation between the two is more stable.

[0086] At the same time, the second via b is formed on the positioning protrusion 34, so that the contact area between the sealing abutment portion 31 and the docking protrusion 11 is smaller, which can increase the local stress of the sealing abutment portion 31, thereby improving surface adaptability, reducing leakage paths, and making it easier to form a uniform sealing pressure, thereby improving the sealing effect.

[0087] Furthermore, since the first docking portion 1 is disposed on the box body 6, in order to facilitate the water at the bottom of the box body 6 to be sucked out, please refer to Figure 1 and Figure 3In the embodiment of the utility model, the first through hole a is provided with a water suction pipe 13 which is sealed and connected to the first through hole a, and the water suction pipe 13 is used to extend into the box body 6. The water suction pipe 13 is provided to facilitate the delivery of the sucked water to the desired location.

[0088] It can be understood that the water suction pipe 13 and the first docking part 1 can be set separately, and the water suction pipe 13 can be sleeved in the first through hole a, or a connecting protrusion can be formed at the lower end of the first docking part 1, the first through hole a passes through the connecting protrusion, and the water suction pipe 13 is sleeved on the connecting protrusion.

[0089] In the embodiment of the utility model, the water suction pipe 13 is integrally provided with the first docking part 1. In this way, the assembly gap between the water suction pipe 13 and the first docking part 1 is reduced, and liquid is prevented from penetrating or leaking through the gap, while it is difficult to maintain sufficient negative pressure.

[0090] The closer the bottom of the water suction pipe 13 is to the bottom of the box body 6, the more fully the water in the box body 6 can be utilized. However, when the water suction pipe 13 is completely in contact with the bottom of the box body 6, a closed space may be formed inside the water suction pipe 13, causing the internal air pressure to increase. The liquid is hindered by the air pressure, resulting in the water suction pipe 13 being unable to smoothly absorb the liquid.

[0091] For further information, see Figure 1 and Figure 3 In the embodiment of the utility model, the lower end of the water suction pipe 13 is protruded with a spacer 14. The lower end of the water suction pipe 13 refers to the bottom or end of the water suction pipe 13, which is used to contact the liquid in the box body 6, and the spacer 14 is a structure in which the protruding part at the lower end of the water suction pipe 13 has a certain interval or gap.

[0092] The partition 14 may be integrally provided with the water suction pipe 13 and formed at the lower end of the water suction pipe 13 , and may also be another structural component installed at the lower end of the water suction pipe 13 .

[0093] In the embodiment of the utility model, the spacing part 14 is a spacing protrusion protruding from the lower end of the water suction pipe 13. In this way, when forming the first docking part 1, the spacing protrusion can be directly formed, which is simple to process.

[0094] In the embodiments of the present invention, please refer to Figure 8, the first docking portion 1 is also provided with an air hole c. When the water suction pipe 13 absorbs water in the box body 6, a closed space is formed, and negative pressure is formed inside, making it more difficult to absorb water. By providing the air hole c, air can flow in or out, helping to maintain the balance of internal and external air pressures, preventing the occurrence of a vacuum effect, maintaining sufficient gas exchange, and making the water absorption process smoother.

[0095] Specifically, in order to facilitate the addition of water to the box body 6, please refer to Figure 7 and Figure 8 In this embodiment, a water injection port is provided on the first docking portion 1. In order to prevent water from spilling out of the water injection port, a blocking cover is provided at the water injection port.

[0096] Further, in this embodiment, the blocking cover includes a blocking portion and a shielding portion disposed on the periphery of the blocking portion, the blocking portion is disposed at the water inlet, and the shielding portion covers the air hole c. It is understandable that there is a gap between the shielding portion and the air hole c, and the shielding portion is not sealed at the air hole c. Such a configuration allows the air hole c to have a ventilation function while shielding external impurities through the shielding portion, and also prevents water from spilling out of the air hole c.

[0097] The utility model also provides a range hood 200, see Fig.10 and Fig.11 The range hood 200 includes a range hood body 10, a water box assembly 20 and a water channel docking structure 100. The range hood body 10 includes a water inlet assembly 5, and the water box assembly 20 includes a box body 6. The specific structure of the water channel docking structure 100 refers to the above embodiment. Since the water channel docking structure 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0098] Furthermore, the range hood 200 further includes an oil box assembly 30, and the oil box assembly 30 and the water box assembly 20 are arranged at intervals in the horizontal direction at the bottom of the range hood body 10. In this way, when the range hood 200 is working, the water provided by the water box assembly 20 enters the range hood 200 high temperature cleaning system from the water inlet assembly 5, and the oil dirt finally decomposed and cleaned is collected in the oil box assembly 30. The water box assembly 20 and the oil box assembly 30 are arranged side by side at the bottom of the range hood body 10, so that the water box assembly 20 and the oil box assembly 30 can be integrated with the range hood body 10. When the range hood 200 is provided with an outer cover plate facing the user, the outer cover plate can be covered on the outer side of the range hood body 10, the water box assembly 20 and the oil box assembly 30, so that the water box assembly 20 and the oil box assembly 30 are well hidden, so that the range hood 200 has a stronger integrity and a better appearance.

[0099] Furthermore, since the water box assembly 20 and the oil box assembly 30 are both arranged at the bottom of the range hood body 10, the water box assembly 20 is used to provide a water source, and the oil box assembly 30 is used to collect oil stains. The functions of the two are different, but in terms of appearance, the two are not much different. When installing the water box assembly 20 and the oil box assembly 30, the user may easily install them by mistake.

[0100] See also Fig.11 In this embodiment, a first mounting portion 81 and a second mounting portion 82 are provided at the bottom of the range hood 200; the water box assembly 20 is installed on the first mounting portion 81, and the oil box assembly 30 is installed on the second mounting portion 82, wherein at least one of the first mounting portion 81 and the second mounting portion 82 is provided with an anti-fool structure.

[0101] In this way, since the water box assembly 20 is installed on the range hood body 10 through the first mounting portion 81, the water box assembly 20 is compatible with the first mounting portion 81, and the oil box assembly 30 is installed on the range hood body 10 through the second mounting portion 82, the oil box assembly 30 is compatible with the second mounting portion 82, when the water box assembly 20 and the oil box assembly 30 are exchanged, when they are installed incorrectly, the water box assembly 20 and the oil box assembly 30 cannot be compatible and installed with the corresponding mounting portion 62, so as to avoid the user's installation error.

[0102] In order to facilitate the assembly of the water box assembly 20 and the range hood main body 10, in this embodiment, it can be realized by setting a card slot and engaging with the box body 6. Specifically, the upper side of the box body 6 is opened, and the box body 6 has two ends in the horizontal direction. At least one end of the upper side of the box body 6 is provided with a hanging portion 61 extending toward one side of the box body 6; the water box assembly 20 also includes a cover body 7 covering the opening, and the cover body 7 includes the first docking portion 1. In this way, the cover body 7 can directly cover the opening to form a closed inner cavity.

[0103] It should be noted that the hanging portion 61 may be extended outwardly toward the upper side of the box body 6 , or the hanging portion 61 may be extended toward the middle portion of the upper side of the box body 6 .

[0104] When the hanging portion 61 extends outward toward the upper side of the box body 6, the cover body 7 can be directly buckled downward at the opening, which is easy to assemble. However, when the hanging portion 61 extends outward and is assembled at the bottom of the range hood body 10, the hanging portion 61 occupies space outward, which affects the overall appearance of the range hood 200.

[0105] When the hanging portion 61 extends toward the middle of the upper side of the box body 6, the hanging portion 61 does not occupy the outward space and has good integrity. The cover body 7 can be moved from the lower side of the hanging portion 61 to the top of the opening by side pushing, and then the cover body 7 is pressed downward to complete the assembly.

[0106] It is understandable that when installing the cover 7, two actions, namely, pushing sideways and pressing downward, are required to complete the assembly, which is inconvenient. In particular, when the cover 7 is integrally formed with the water suction pipe 13, when pushing sideways, the water suction pipe 13 interferes with the side of the box body 6, further increasing the difficulty of assembly.

[0107] Furthermore, in this embodiment, a mounting portion 62 is provided on the upper side of the box body 6 on the inner side of the hanging portion 61, and the mounting portion 62 protrudes from the hanging portion 61 toward the middle direction of the box body 6; the cover body 7 is staggered from the hanging portion 61, and the end of the cover body 7 adjacent to the hanging portion 61 is supported on the mounting portion 62.

[0108] When assembling the cover body 7, it is only necessary to press the cover body 7 downward directly so that the cover body 7 is supported on the mounting portion 62. The cover body 7 and the box body 6 enclose a water holding cavity. By directly pressing the cover body 7 downward, the cover body 7 and the box body 6 can be assembled. The operation is simple. While not occupying the outer space, it avoids complicated operation steps and difficult assembly when assembling the water cup.

[0109] It is understandable that when the water box assembly 20 is installed on the range hood 200, it is necessary to dock the first through hole a on the water box assembly 20 with the second through hole b of the water inlet assembly 5 on the range hood 200. Therefore, the water box assembly 20 needs to be set to a horizontal state to effectively ensure the water absorption of the range hood 200. Since the hanging portion 61 is provided at one end of the box body 6, the hanging portion 61 is easily deformed when the water box assembly 20 is assembled, causing the box body 6 to tilt, which is not conducive to the smoke removal work of the range hood 200.

[0110] Therefore, in another embodiment, a hanging portion 61 is provided at both ends of the box body 6; two mounting portions 62 are provided, each mounting portion 62 is arranged on the inner side of the corresponding hanging portion 61, and both ends of the cover body 7 are supported by the two mounting portions 62.

[0111] With such a configuration, the water box assembly 20 can be hung on the bottom of the range hood 200 through the two hanging parts 61, which can provide better support and balance, so that the water box assembly 20 can be more firmly suspended on the bottom of the range hood 200, and can reduce shaking or tilting caused by imbalance or instability, ensuring that the water box assembly 20 is not easy to shift or fall off during use, and the weight of the water box assembly 20 is evenly distributed on the two hanging parts 61, which can reduce the burden of a single hanging part 61, extend the service life of the hanging part 61, and reduce the risk of damage caused by the hanging part 61 bearing too much weight.

[0112] Furthermore, since the two hanging portions 61 extend toward the middle of the upper side of the box body 6, in order to prevent the other end of the cover body 7 from interfering with the other hanging portion 61 when the cover body 7 is directly pressed downward for assembly, correspondingly, another mounting portion 62 is provided on the upper side of the box body 6 on the inner side of the other hanging portion 61, so that the two mounting portions 62 protrude from the two hanging portions 61 toward the middle of the box body 6, thereby facilitating the assembly of the cover body 7.

[0113] It should be noted that, since the cover body 7 is provided with the first through hole a for docking with the second through hole b of the water inlet assembly 5, and is generally arranged at one end of the cover body 7 in the horizontal direction, but not in the middle of the cover body 7, the installation direction of the cover body 7 determines whether the first through hole a can be aligned with the second through hole b.

[0114] For further information, see Figures 10 to 12In this embodiment, the range hood 200 includes a fume hood 101, and the fume hood 101 has a rear side wall 1011 and two side walls 1012 that are oppositely disposed in the transverse direction. In addition, the fume hood 101 may also have a front side wall that is oppositely disposed to the rear side wall 1011 in the front-to-back direction, and the front side wall, the rear side wall 1011, and the two side walls 1012 together define an inner cavity of the fume hood 101.

[0115] It should be noted that the smoke hood 101 is a vital component of the range hood 200. Its main function is to capture and gather the smoke generated during the cooking process so that it can be discharged to the outside through the fan system to keep the kitchen air fresh. Therefore, an air inlet is provided on the smoke hood 101 to allow smoke to enter the smoke hood 101.

[0116] In one embodiment, see Fig.10 and Fig.12 In order to improve the flow efficiency of the intake air duct, the rear side wall 1011 is provided with a guide member 102 extending in the up-down direction. By providing the guide member 102 extending in the up-down direction, a left and right double flow channel is formed at the front end of the intake air, making the oil fume suction and exhaust smoother.

[0117] Specifically, the guide member 102 can be completely fixed. Specifically, the guide member 102 includes an upper rectifying portion 1021 and a lower rectifying portion 1022 which are sequentially arranged along the up-down direction. The upper rectifying portion 1021 and the lower rectifying portion 1022 are both fixedly mounted on the rear side wall 1011 of the smoke hood 101, wherein the upper rectifying portion 1021 is in contact with the cavity wall of the inner cavity on opposite sides in the front-to-back direction of the smoke hood 101, respectively, and the upper rectifying portion 1021 is formed with rectifying side surfaces on opposite sides in the left-to-right direction of the smoke hood 101, the rectifying side surfaces extend in the direction from the air inlet to the smoke exhaust port, and are spaced apart from the cavity wall of the inner cavity in the left-to-right direction, and the distance between the two rectifying side surfaces decreases from the rear to the front. After the oil smoke enters the inner cavity through the air inlet, it can be rectified by the upper rectifying part 1021 of the guide member 102, so that the oil smoke enters the exhaust port in an approximately parallel manner, thereby preventing the oil smoke from colliding at the exhaust port, thereby reducing the probability of generating collision noise, and thus reducing the noise of the range hood 200; and because the upper rectifying part 1021 can rectify the oil smoke into an approximately parallel manner to enter the exhaust port, the probability of the oil smoke on both sides generating vortices can be reduced, thereby reducing the probability of generating aerodynamic noise, and thus reducing the noise of the range hood 200. Furthermore, because the flow rate of the oil smoke near the rear position is larger and more concentrated than the flow rate near the front position, the distance between the two rectifying sides is set to decrease from the rear to the front, thereby better rectifying the oil smoke with a larger flow rate near the rear, and improving the rectifying effect, thereby reducing the noise of the range hood 200.

[0118] Of course, the upper rectifying part 1021 of the guide member 102 can also be movably arranged. Specifically, the lower rectifying part 1022 is fixedly installed on the rear side wall 1011 of the smoke hood 101, and the upper rectifying part 1021 is arranged to swing laterally, so that under the swing of the upper rectifying part 1021, the cross-sectional area size in the left and right air inlet paths of the range hood 200 changes, and the air intake ratio on the left and right sides is changed. Therefore, accurate smoking can be performed for cooking on the left or right side of the stove, improving the single-sided smoking effect, adapting to the use scenarios of single stove / single-side use of stove or steaming and stir-frying, so that the smoking effect is optimally matched and the noise is low.

[0119] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water channel docking structure, used between the box body and the water inlet assembly of a range hood, characterized in that: The waterway docking structure comprises: A first docking portion is provided on the box body, a first through hole is provided in the first docking portion, the first through hole is communicated with the inner cavity of the box body, and a port of the first through hole is formed at the upper end of the first docking portion; and A second docking portion is arranged in the water inlet assembly, a second through hole is formed in the second docking portion, a port of the second through hole is formed at the lower end of the second docking portion, and the lower port of the second through hole is docked with the upper port of the first through hole; and An elastic sealing portion is installed on one of the first docking portion and the second docking portion. The elastic sealing portion is located between the first docking portion and the second docking portion and is arranged around the first via hole and the second via hole.

2. The waterway docking structure according to claim 1, characterized in that: The other of the first docking portion and the second docking portion is provided with a docking protrusion, and the first via hole or the second via hole is provided through the docking protrusion; The butting protrusion abuts against the elastic sealing portion.

3. The waterway docking structure according to claim 2, characterized in that: One end of the first through hole is disposed on the docking protrusion; The elastic sealing portion is disposed at the lower end of the second docking portion, and the elastic sealing portion is in sealing contact with the docking protrusion.

4. The waterway docking structure according to claim 1, characterized in that: The elastic sealing portion includes an elastic sealing pad arranged at the lower end of the second docking portion.

5. The waterway docking structure according to claim 4, characterized in that: A mounting groove is provided at the lower end of the second docking portion, and a port of the second via hole is provided at the bottom of the mounting groove; The elastic sealing pad is installed in the installation groove.

6. The waterway docking structure according to claim 5, characterized in that: The upper end of the elastic sealing pad is provided with a sealing abutment portion, the sealing abutment portion is arranged around the periphery of the second through hole and abuts against the bottom of the mounting groove; and / or, One of the top of the elastic sealing pad and the bottom of the mounting groove is provided with a limiting protrusion, and the other is provided with a limiting groove; and / or, A clamping portion is arranged on the side surface of the elastic sealing portion, and a matching portion clamped with the clamping portion is arranged on the inner side wall of the mounting groove.

7. The waterway docking structure according to claim 2, characterized in that: One of the butting protrusion and the elastic sealing portion is provided with a positioning protrusion, and the other is provided with a positioning groove.

8. The waterway docking structure according to claim 7, characterized in that: The positioning protrusion and the positioning groove are arranged in a ring shape and are arranged around the periphery of the first through hole and the second through hole.

9. The waterway docking structure according to claim 1, characterized in that: The first through hole is provided with a water suction pipe which is sealed and connected to the first through hole, and the water suction pipe is used to extend into the box body.

10. The waterway docking structure according to claim 9, characterized in that: The water suction pipe is integrally arranged with the first docking portion; and / or, A spacer is protrudingly provided at the lower end of the water suction pipe.

11. A range hood, characterized in that: include: The range hood body includes a water inlet assembly; A water box assembly, comprising a box body; and, A waterway docking structure as claimed in any one of claims 1 to 10.

12. The range hood according to claim 11, characterized in that: The range hood further comprises an oil box assembly, wherein the oil box assembly and the water box assembly are arranged at intervals in the transverse direction at the bottom of the range hood body.

13. The range hood according to claim 12, characterized in that: The bottom of the range hood is provided with a first mounting portion and a second mounting portion; The water box assembly is mounted on the first mounting portion, and the oil box assembly is mounted on the second mounting portion, wherein at least one of the first mounting portion and the second mounting portion is provided with a fool-proof structure.

14. The range hood according to claim 11, characterized in that: The upper side of the box body is open, the box body has two ends in the lateral direction, and at least one end of the upper side of the box body is provided with a hanging portion extending toward one side of the box body; The water box assembly further includes a cover body covering the opening, and the first docking portion is disposed on the cover body.

15. The range hood according to claim 11, characterized in that: The range hood comprises a fume collecting hood, wherein the fume collecting hood has a rear side wall and two side walls arranged opposite to each other in the transverse direction; The rear side wall is provided with a flow guide extending in the up-down direction; The flow guide comprises an upper rectifying part and a lower rectifying part which are sequentially arranged in the up-down direction, the lower rectifying part is fixedly mounted on the rear side wall, and the upper rectifying part is swung laterally and mounted on the upper end of the lower rectifying part.

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