Range hood

Abstract

The utility model relates to a range hood. The range hood comprises a main cavity shell; the air inlet shell upwards retracts into the main cavity shell in the packaging and transporting state of the range hood, and the air inlet shell downwards extends out of the main cavity shell in the mounting state of the range hood; the sliding rail mechanism is used for connecting the main cavity shell to the air inlet shell and is provided with sliding rails, and the sliding rails have a contraction state in which the sliding rails retract relative to each other and an extension state in which the sliding rails extend relative to each other; in the contracted state, the contracted fixing holes of the sliding rails can be aligned with each other so as to fix the sliding rails with the aid of the fasteners, and in the extended state, the extended fixing holes of the sliding rails can be aligned with each other so as to fix the sliding rails with the aid of the fasteners. The range hood has the advantages that the range hood can be easily fixed in a packaging and transporting state by shrinking the fixing holes, so that the range hood can be transported to the home of a user in a low-cost and lossless manner; the range hood can be easily fixed in an extension state through the extension fixing hole, so that the range hood can be mounted in a user home.

Description

Technical Field

[0001] The present application relates to a range hood. Background Art

[0002] To better extract oil fumes, some current range hoods often feature a lower air inlet that protrudes downward from the main body. This creates an L-shaped design, which takes up a significant amount of space during packaging and incurs high shipping costs. Furthermore, the L-shaped structure is heavy at one end and light at the other. Improper handling during transportation can easily cause deformation of the range hood's internal components, resulting in loss of functionality and poor appearance. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a range hood that can be easily fixed in a packaged transportation state through the contraction fixing holes, and delivered to the user's home at low cost and without damage; and can be easily fixed in an extended state through the extension fixing holes, so as to be installed and used in the user's home.

[0004] According to a first aspect of the present application, an embodiment of the present application provides a range hood, characterized in that the range hood comprises:

[0005] A main cavity shell for supporting the main body of the range hood;

[0006] an air inlet housing for supporting the lower air inlet of the range hood, wherein when the range hood is packaged for transportation, the air inlet housing is retracted upward into the main cavity housing, and when the range hood is installed, the air inlet housing extends downward from the main cavity housing;

[0007] a slide rail mechanism for connecting the air inlet housing to the main chamber housing, the slide rail mechanism comprising at least two slide rails, the at least two slide rails having a contracted state in which they are retracted relative to each other to achieve the packaged transport state, and an extended state in which they are extended relative to each other to achieve the installed state;

[0008] wherein the at least two slide rails respectively have a shrinkage fixing hole, and in the shrinkage state, the shrinkage fixing holes of the at least two slide rails can be aligned with each other so as to fix the at least two slide rails to each other by means of fasteners that can be inserted into the shrinkage fixing holes; and / or

[0009] Wherein, the at least two slide rails respectively have an elongated fixing hole. In the elongated state, the elongated fixing holes of the at least two slide rails can be aligned with each other to fix the at least two slide rails to each other by means of fasteners that can be placed in the elongated fixing holes.

[0010] Please refer to the difference in the last indentation above. In the above description, “and / or” refers only to the features related to the elongated fixing holes and the contracted fixing holes.

[0011] According to an optional embodiment of the present application, the fastener is a fixing screw; and / or

[0012] The elongated fixing hole located rearward in the insertion direction among the elongated fixing holes is a threaded hole; and / or

[0013] The shrinkage fixing hole located rearward along the insertion direction among the shrinkage fixing holes is a threaded hole; and / or

[0014] One of the at least two slide rails has a fixing hole, and the fixing hole serves as an extension fixing hole and a contraction fixing hole at the same time; and / or

[0015] The at least two slide rails have an elongation limiting structure, by which the elongation fixing holes are aligned with each other when the at least two slide rails are in a state of maximum elongation relative to each other; and / or

[0016] The at least two slide rails have a contraction limiting structure, and the contraction fixing holes are aligned with each other when the at least two slide rails are in a state of maximum contraction relative to each other through the contraction limiting structure; and / or

[0017] The at least two slide rails include a first slide rail for connecting to the air inlet housing, the first slide rail having two first side walls opposite to each other, a first bottom wall connecting the two first side walls to each other, and a flange connected to the first side wall on the side away from the first bottom wall, the elongated fixing hole includes a first elongated fixing hole provided on the flange of the first slide rail and / or the contraction fixing hole includes a first contraction fixing hole provided on the flange of the first slide rail.

[0018] According to an optional embodiment of the present application, the at least two slide rails further include a second slide rail and a third slide rail in addition to the first slide rail, the third slide rail is used to be connected to the main cavity housing and connected to the first slide rail via the second slide rail, the second slide rail is suitable for sleeved on the first slide rail, and the third slide rail is suitable for sleeved on the second slide rail; and / or

[0019] The first slide rail has a first connection hole for connecting to the air inlet housing, and the first connection hole is provided on the first bottom wall; and / or

[0020] The first elongated fixing hole and / or the first contracted fixing hole is a threaded hole.

[0021] According to an optional embodiment of the present application, the second slide rail has two second side walls opposite to each other and a second bottom wall connecting the two second side walls to each other; and / or

[0022] The third slide rail has two third side walls opposite to each other and a third bottom wall connecting the two third side walls to each other; and / or

[0023] The first connection hole comprises three first connection holes distributed along the length direction, and the first connection hole is centrally arranged in the width direction; and / or

[0024] The first connecting hole is a threaded hole; and / or

[0025] Two first elongated fixing holes and two first contracted fixing holes are respectively provided on the two flanges; and / or

[0026] The extension limiting structure includes a first extension limiting folded edge of the first slide rail that is folded outward and a second extension limiting folded edge of the second slide rail that is folded inward, and the second extension limiting folded edge is suitable for stopping the first extension limiting folded edge to prevent the first slide rail from extending further downward relative to the second slide rail; and / or

[0027] The shrinkage limiting structure includes a first shrinkage limiting folded edge of the first slide rail that is folded outward, and the first shrinkage limiting folded edge is suitable for stopping at the lower end of the second slide rail to prevent the first slide rail from further shrinking into the second slide rail.

[0028] According to an optional embodiment of the present application, the second bottom wall has a second elongated fixing hole for fixing to the third slide rail in the extended state and a second contracted fixing hole for fixing to the third slide rail in the contracted state, and the second contracted fixing hole is also used as an elongated fixing hole for fixing to the first slide rail in the extended state; and / or

[0029] The third bottom wall has a third fixing hole serving as both an elongation fixing hole and a contraction fixing hole; and / or

[0030] The third slide rail has a third connecting hole for connecting with the main cavity housing, and the third connecting hole is provided on the third bottom wall; and / or

[0031] In the assembled state, the second bottom wall contacts the third bottom wall on one side and contacts the flange on the other side.

[0032] According to an optional embodiment of the present application, in the extended state, the first extended fixing hole and the second contracted fixing hole are aligned with each other, and the second extended fixing hole and the third fixing hole are aligned with each other; and / or

[0033] In the contracted state, the first contraction fixing hole, the second contraction fixing hole, and the third fixing hole are aligned with each other; and / or

[0034] The third connection hole comprises three third connection holes distributed along the length direction, and the third connection hole is centrally arranged in the width direction; and / or

[0035] The second elongated fixing hole is a threaded hole; and / or

[0036] The second shrinkage fixing hole is a through hole; and / or

[0037] The third fixing hole is a through hole; and / or

[0038] The third connecting hole is a through hole; and / or

[0039] The second bottom wall has a convex bulge suitable for avoiding a main cavity screw connected to the main cavity housing via the third connecting hole.

[0040] According to an optional embodiment of the present application, the third side wall has an elongated hole extending in the longitudinal direction, and the second side wall has a mounting hole for mounting a guide member, the guide member is adapted to be guided by the elongated hole, and the elongated hole and the guide member form an extension limiting structure and a contraction limiting structure between the second slide rail and the third slide rail;

[0041] The guide member is a step screw;

[0042] The mounting hole is a threaded hole.

[0043] According to an optional embodiment of the present application, the first elongation limiting fold is provided at the upper end of the first side wall; and / or

[0044] The second elongation limiting fold is provided centrally on the second slide rail in the length direction; and / or

[0045] The first shrinkage limiting fold is provided at the lower end of the first side wall.

[0046] According to an optional embodiment of the present application, the air inlet housing has a recessed portion on the back side suitable for accommodating the slide rail mechanism.

[0047] According to an optional embodiment of the present application, the at least two slide rails respectively have two side walls opposite to each other and a bottom wall connecting the two side walls to each other, the elongated fixing hole includes an elongated fixing hole provided in the side wall and / or the contraction fixing hole includes a contraction fixing hole provided in the side wall; and / or

[0048] In the extended state, two adjacent ones of the at least two slide rails have an overlap of at least 40% in length. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. The accompanying drawings include:

[0050] Figure 1 An example of a range hood of the present application is schematically shown;

[0051] Figure 2 An example of the slide rail mechanism of the present application is schematically shown, wherein the slide rail is in an extended state and has an extended fixing hole;

[0052] Figure 3 An example of the slide rail mechanism of the present application is schematically shown, wherein the slide rail is in a retracted state and has a retracted fixing hole;

[0053] Figure 4 An example of the slide rail mechanism of the present application is schematically shown;

[0054] Figure 5 An example of the slide rail mechanism of the present application is schematically shown;

[0055] Figure 6 An example of the main cavity housing, air inlet housing and slide rail mechanism of the present application is schematically shown in a three-dimensional diagram;

[0056] Figure 7 An example of the slide rail mechanism of the present application is schematically shown in a three-dimensional diagram;

[0057] Figure 8 Schematically shows Figure 7 An example of a retracted state of the slide mechanism in FIG.

[0058] Figure 9 Schematically shows Figure 7 An example of a cross-sectional view of a slide mechanism in FIG.

[0059] Figure 10 The perspective view schematically shows Figure 7 An example of a first slide rail of the slide rail mechanism;

[0060] Figure 11 Another perspective shows Figure 10 An example of the first slide in;

[0061] Figure 12 The perspective diagram schematically shows Figure 7 An example of a second slide rail of the slide rail mechanism;

[0062] Figure 13 Another perspective shows Figure 12An example of the second slide in;

[0063] Figure 14 An example of an elongation limiting structure between a first slide rail and a second slide rail is schematically shown in a partial view;

[0064] Figure 15 The perspective diagram schematically shows Figure 7 An example of a third slide rail of a slide rail mechanism;

[0065] Figure 16 Another perspective shows Figure 15 An example of the third rail in ;

[0066] Figure 17 Schematically shows Figure 7 An example of a retracted state of the slide mechanism in FIG.

[0067] Figure 18 Schematically shows Figure 7 An example of an extended state of the slide mechanism in FIG.

[0068] Figure 19 Schematically shows Figure 6 An example of a dorsal view of;

[0069] Figure 20 Schematically shows Figure 6 An example of a frontal view of;

[0070] Figure 21 Another possible arrangement of the elongated fixing holes and the retracted fixing holes on the slide rail is schematically shown.

[0071] Reference Signs List

[0072] 1 main chamber housing;

[0073] 2 air inlet housing, 20 recessed portion;

[0074] 3 Slide rail mechanism, 30 slide rail, 300 side wall, 301 bottom wall, 302 extension fixing hole, 303 contraction fixing hole, 304 fixing hole, 31 first slide rail, 310 first side wall, 311 first bottom wall, 312 flange, 313 first connecting hole, 314 first extension limiting fold, 315 first contraction limiting fold, 32 second slide rail, 320 second side wall, 321 second bottom wall, 324 second extension limiting fold, 325 convex hull, 326 mounting hole, 33 third slide rail, 330 third side wall, 331 third bottom wall, 333 third connecting hole, 334 elongated hole;

[0075] 410 first elongated fixing hole, 411 first contracted fixing hole, 420 second elongated fixing hole, 421 second contracted fixing hole, 43 third fixing hole;

[0076] 5 main cavity screws;

[0077] 6 guides;

[0078] 7 fasteners;

[0079] 80 extension limiting structure, 81 contraction limiting structure;

[0080] 90 main body, 91 lower air inlet. DETAILED DESCRIPTION

[0081] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by this application more clearly understood, this application will be further described in detail below with reference to the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit the scope of protection of this application.

[0082] Figure 1 An example of a range hood of the present application is schematically shown. The range hood comprises:

[0083] A main cavity housing 1 for supporting the main body 90 of the range hood;

[0084] An air inlet housing 2 for supporting the lower air inlet 91 of the range hood.

[0085] When the range hood is packaged and transported, the air inlet housing 2 is retracted upward into the main cavity housing 1. This reduces the volume of the range hood in the packaged and transported state, saving shipping costs. When the range hood is installed, the air inlet housing 2 extends downward from the main cavity housing 1. This allows the lower air inlet 91 to be closer to the stove, thereby enhancing the fume extraction effect. In this application, the installation state refers in particular to the state in which the range hood is installed in the user's home. In addition, after installation, during normal use, the air inlet housing 2 of the range hood no longer retracts into the main cavity housing 1.

[0086] In order to achieve telescopic extension, the range hood also includes a slide rail mechanism 3 for connecting the air inlet shell 2 to the main cavity shell 1, and the slide rail mechanism 3 has at least two slide rails 30, and the at least two slide rails 30 have a contracted state that is retracted relative to each other to achieve the packaging and transportation state and an extended state that is extended relative to each other to achieve the installation state.

[0087] Figure 2 An example of the slide rail mechanism 3 of the present application is schematically shown, wherein the slide rail 30 is in an extended state and has an extended fixing hole 302 . Figure 3 An example of the slide rail mechanism 3 of the present application is schematically shown, wherein the slide rail 30 is in a retracted state and has a retracted fixing hole 303 .

[0088] like Figure 2 As shown, the at least two slide rails 30 each have an elongated fixing hole 302. In the extended state, the elongated fixing holes 302 of the at least two slide rails 30 can be aligned with each other, so that the at least two slide rails 30 can be fixed to each other by means of fasteners 7 that can be inserted into the elongated fixing holes 302. In this way, the slide rails 30 can be conveniently fixed in the extended state with a simple structure to achieve the installation state of the range hood.

[0089] like Figure 3 As shown, the at least two slide rails 30 each have a retracted fixing hole 303. In the retracted state, the retracted fixing holes 303 of the at least two slide rails 30 can be aligned with each other, so that the at least two slide rails 30 can be fixed to each other by means of fasteners 7 that can be inserted into the retracted fixing holes 303. In this way, the slide rails 30 can be conveniently fixed in the retracted state with a simple structure to achieve the packaged transportation state of the range hood.

[0090] Obviously, the slide rail 30 may have only the elongated fixing hole 302 , or only the contracted fixing hole 303 , or both the elongated fixing hole 302 and the contracted fixing hole 303 .

[0091] According to an exemplary embodiment of the present application, the fastener 7 is a set screw. By means of the set screw, in addition to the up and down direction, the fastener can also be fixed in the front and back and left and right directions. Alternatively, it is also conceivable that the fastener 7 is a fixing pin or the like.

[0092] In order to cooperate with the fastener 7 configured as a fixing screw, the elongated fixing hole 302 located at the rear along the insertion direction is a threaded hole. The other elongated fixing holes 302 can be, for example, through holes or plain holes, thereby simplifying the fixing. Similarly, the shrinkage fixing hole 303 located at the rear along the insertion direction is a threaded hole, while the other shrinkage fixing holes 303 can be through holes. Figure 2 and Figure 3 In the figure, the direction of insertion is shown by the arrow above the fastener 7. Figure 2 and Figure 3 In other words, it is on the right.

[0093] Figure 4 An example of the slide rail mechanism 3 of the present application is schematically shown.

[0094] According to an exemplary embodiment of the present application, Figure 4 As shown, one of the at least two slide rails 30 has a fixing hole 304, which is used as both an elongation fixing hole 302 and a contraction fixing hole 303. This simplifies the structure of the slide rail 30. Figure 4 In the example, the slide rail 30 connected to the main cavity housing 1 has an independent extension fixing hole 302 and a contraction fixing hole 303. The slide rail 30 connected to the air inlet housing 2 has a fixing hole 304, which serves as both the extension fixing hole 302 and the contraction fixing hole 303. The double-headed arrows here indicate the upward and downward extension of the slide rail 30. Figure 4 In FIG, the contracted state is shown by a dotted line.

[0095] It should be pointed out here that Figures 2 to 4 In order to clearly see the positional relationship between the slide rails 30, the two slide rails 30 are drawn separately from each other. It can be understood by those skilled in the art that, in use, the slide rails 30 are, for example, nested together.

[0096] Figure 5 An example of the slide rail mechanism 3 of the present application is schematically shown.

[0097] According to an exemplary embodiment of the present application, Figure 5 As shown, the at least two slide rails 30 have an extension limiting structure 80, which allows the extension fixing holes 302 to be aligned with each other when the at least two slide rails 30 are in a state of maximum extension relative to each other. Therefore, there is no need to manually align the extension fixing holes 302.

[0098] According to an exemplary embodiment of the present application, Figure 5 As shown, the at least two slide rails 30 have a contraction limiting structure 81, which allows the contraction fixing holes 303 to be aligned with each other when the at least two slide rails 30 are in a state of maximum contraction relative to each other. Therefore, there is no need to manually align the contraction fixing holes 303.

[0099] exist Figure 5 In FIG. 8 , the extension limiting structure 80 and the contraction limiting structure 81 are illustratively formed by a pair of protrusions on the slide rail 30 .

[0100] Figure 6 An example of the main cavity housing 1, the air inlet housing 2 and the slide rail mechanism 3 of the present application is schematically shown in a three-dimensional diagram.

[0101] Figure 7 An example of the slide rail mechanism 3 of the present application is schematically shown in a three-dimensional diagram.

[0102] Figure 8 Schematically shows Figure 7 An example of the contracted state of the slide rail mechanism 3 in FIG.

[0103] Figure 9 Schematically shows Figure 7 An example of a cross-sectional view of the slide rail mechanism 3 in FIG.

[0104] Figure 10 The perspective diagram schematically shows Figure 7 An example of the first slide rail 31 of the slide rail mechanism 3 in FIG.

[0105] Figure 11 Another perspective shows Figure 10 An example of the first slide rail 31 in FIG.

[0106] Figure 12 The perspective diagram schematically shows Figure 7 An example of the second slide rail 32 of the slide rail mechanism 3 in FIG.

[0107] Figure 13 Another perspective shows Figure 12 An example of the second slide rail 32 in.

[0108] Figure 14 An example of an elongation limiting structure 80 between the first slide rail 31 and the second slide rail 32 is schematically shown in a partial view.

[0109] Figure 15 The perspective diagram schematically shows Figure 7 An example of the third slide rail 33 of the slide rail mechanism 3 in FIG.

[0110] Figure 16 Another perspective shows Figure 15 An example of the third slide rail 33 in.

[0111] Figure 17 Schematically shows Figure 7 An example of the retracted state of the slide rail mechanism 3 in FIG. Here, the three slide rails 30 are shown separately to make the positional relationship clear. For simplicity, each retracted fixing hole is framed with a dotted line and marked with a reference numeral accordingly.

[0112] Figure 18 Schematically shows Figure 7 FIG. 3 is an example of an extended state of the slide rail mechanism 3 in FIG. Here, the three slide rails 30 are shown separately to make the positional relationship clear. For simplicity, each extended fixing hole is framed with a dotted line and marked with a reference numeral accordingly.

[0113] Figure 19 Schematically shows Figure 6 An example of a dorsal view of a .

[0114] Figure 20 Schematically shows Figure 6 An example of a front view of .

[0115] According to an exemplary embodiment of the present application, Figures 7 to 11As shown, the at least two slide rails 30 include a first slide rail 31 for connecting to the air inlet shell 2, the first slide rail 31 has two first side walls 310 opposite to each other, a first bottom wall 311 connecting the two first side walls 310 to each other, and a flange 312 connected to the first side wall 310 on the side away from the first bottom wall 311, the elongated fixing hole 302 includes a first elongated fixing hole 410 provided on the flange 312 of the first slide rail 31 and / or the contraction fixing hole 303 includes a first contraction fixing hole 411 provided on the flange 312 of the first slide rail 31. By arranging the first elongated fixing hole 410 and the first contracted fixing hole 411 on the flange 312, the first slide rail 31 can cover the opening of the second slide rail 32 and be fixed to it with the flange 312, so that the slide rail mechanism 3 is roughly closed and more stable, and the first slide rail 31 can be connected to the air inlet shell 2 with the first bottom wall 311 separated from the flange 312, which is more advantageous in terms of spatial layout.

[0116] Here, the first elongated fixing hole 410 and the first contracted fixing hole 411 are, for example, threaded holes.

[0117] In order to connect with the air inlet housing 2, as Figure 11 As shown, the first bottom wall 311 is provided with a first connection hole 313. For example, Figure 11 As shown, the first connection holes 313 include three first connection holes 313 distributed along the length direction, and the first connection hole 313 is centrally located in the width direction. This allows for staggering with the first elongated fixing hole 410 and the first contracted fixing hole 411 on the flange 312. However, various variations in the position and number of the first connection holes 313 are readily conceivable. Since the air intake housing 2 is positioned outwardly relative to the first slide rail 31 in the front-to-back direction, the first connection holes 313 of the first slide rail 31 are, for example, threaded holes for securing from the front.

[0118] In order to connect with the first slide rail 31, as Figure 6 and Figure 19 As shown, the air inlet housing 2 may have a recessed portion 20 on the back side suitable for accommodating the slide rail mechanism 3 .

[0119] like Figure 10 As shown, the first slide rail 31 may have two flanges 312, and two first elongated fixing holes 410 and two first contracted fixing holes 411 are respectively provided on the two flanges 312. Figure 10 and Figure 11As shown, the first slide rail 31 has four first elongated fixing holes 410 and four first contracted fixing holes 411 arranged in a rectangular shape. Multiple fixing holes enable more robust fixation. Here, only the first elongated fixing holes 410 and first contracted fixing holes 411 on one flange 312 are denoted by reference numerals.

[0120] According to an exemplary embodiment of the present application, Figures 7 to 9 As shown, the at least two slide rails 30 include a second slide rail 32 and a third slide rail 33 in addition to the first slide rail 31. The third slide rail 33 is used to connect to the main cavity shell 1 and is connected to the first slide rail 31 via the second slide rail 32. The second slide rail 32 is suitable for sheathing the first slide rail 31, and the third slide rail 33 is suitable for sheathing the second slide rail 32. The three slide rails 30 can achieve sufficient overlap between the slide rails 30 in the extended state to achieve sufficient stability of the slide rail mechanism 3. It is conceivable that in the extended state, two adjacent slide rails 30 have at least 40% overlap in length. In addition, since the air inlet shell 2 needs to be able to retract into the main cavity shell 1, it is advantageous for the first slide rail 31 to be in the innermost layer of the slide rail mechanism 3, for example, to be sheathed by the second slide rail 32. In order to connect to the main cavity shell 1, as shown Figure 16 As shown, the third bottom wall 331 of the third slide rail 33 has a third connecting hole 333. Figure 16 In the embodiment, the third connecting hole 333 includes three third connecting holes 333 distributed along the length direction, and the third connecting hole 333 is centrally arranged in the width direction. The third connecting hole 333 can be a through hole, and the main cavity screw 5 can, for example, pass through the third connecting hole 333 from front to back and fix it to the threaded hole on the main cavity housing 1, thereby fixing the third slide rail 33 to the main cavity housing 1. In order to avoid the main cavity screw 5, see Figure 9 、 Figure 12 and Figure 20 The second bottom wall 321 of the second slide rail 32 may have a convex bulge 325 .

[0121] According to an exemplary embodiment of the present application, see Figure 13 、 Figure 17 and Figure 18 The second bottom wall 321 has a second elongated fixing hole 420 for securing the second guide rail 33 in the extended state, and a second retracted fixing hole 421 for securing the second guide rail 33 in the retracted state. The second retracted fixing hole 421 also serves as the elongated fixing hole 302 for securing the second guide rail 31 in the extended state. This simplifies the design. Corresponding to the first guide rail 31, the second bottom wall 321 may have four second elongated fixing holes 420 and four second retracted fixing holes 421 arranged in a rectangular shape.

[0122] According to an exemplary embodiment of the present application, see Figure 16 、 Figure 17 and Figure 18 The third bottom wall 331 has a third fixing hole 43 that serves as both the extension fixing hole 302 and the contraction fixing hole 303. This simplifies the design. Corresponding to the first and second slide rails 31 and 32, the third slide rail 33 can have four third fixing holes 43 arranged in a rectangular shape.

[0123] According to an exemplary embodiment of the present application, see Figure 17 In the contracted state, the first contraction fixing hole 411, the second contraction fixing hole 421, and the third fixing hole 43 are aligned with each other.

[0124] According to an exemplary embodiment of the present application, see Figure 18 In the extended state, the first extended fixing hole 410 and the second contracted fixing hole 421 are aligned with each other, and the second extended fixing hole 420 and the third fixing hole 43 are aligned with each other.

[0125] The third fixing hole 43 may be a through hole. The second elongated fixing hole 420 may be a threaded hole. Figure 18 and Figure 19 In the extended state, corresponding fixing screws can, for example, be passed from back to front through the through-hole of the main chamber housing 1 and the third fixing hole 43 (configured as a through-hole) of the third slide rail 33 to be fixed to the second elongated fixing hole 420 (configured as a threaded hole) of the second slide rail 32. The second contracted fixing hole 421 can be a through-hole. Corresponding fixing screws can, for example, be passed from back to front through the second contracted fixing hole 421 (configured as a through-hole) of the second slide rail 32 to be fixed to the first elongated fixing hole 410 (configured as a threaded hole) of the first slide rail 31.

[0126] See also Figure 17 In the retracted state, the corresponding fixing screws can pass through the through hole of the main cavity shell 1, the third fixing hole 43 of the third slide rail 33 which is a through hole, and the second retracted fixing hole 421 of the second slide rail 32 which is a through hole from back to front and are fixed to the first retracted fixing hole 411 of the first slide rail 31 which is a threaded hole.

[0127] According to an exemplary embodiment of the present application, Figure 10 、 Figure 12 and Figure 14As shown, the elongation limiting structure 80 includes a first elongation limiting fold 314 of the first slide rail 31 that is folded outward and a second elongation limiting fold 324 of the second slide rail 32 that is folded inward. The second elongation limiting fold 324 is adapted to stop the first elongation limiting fold 314 to prevent the first slide rail 31 from extending further downward relative to the second slide rail 32. In this way, the elongation limiting structure 80 can be conveniently formed by using an easily manufactured fold. When stopping, refer to Figure 18 , the first elongated fixing hole 410 is aligned with the second contracted fixing hole 421 .

[0128] The first elongation limiting fold 314 can be provided at the upper end of the first side wall 310. The second elongation limiting fold 324 can be provided in the center of the second slide rail 32 in the longitudinal direction. Thus, the first slide rail 31 and the second slide rail 32 have sufficient overlap in the extended state.

[0129] According to an exemplary embodiment of the present application, Figure 10 As shown, the contraction limiting structure 81 includes a first contraction limiting fold 315 folded outward of the first slide rail 31. The first contraction limiting fold 315 is adapted to stop at the lower end of the second slide rail 32 to prevent the first slide rail 31 from further retracting into the second slide rail 32. In this case, no corresponding structure is required on the second slide rail 32, thereby simplifying the design. Figure 17 , the first shrinkage fixing hole 411 is aligned with the second shrinkage fixing hole 421.

[0130] The first shrinkage limiting fold 315 may be provided at the lower end of the first side wall 310 , thereby simplifying the design.

[0131] According to an exemplary embodiment of the present application, Figure 7 、 Figure 8 、 Figure 9 、 Figure 12 and Figure 15 As shown, the third side wall 330 has an elongated hole 334 extending along the length direction, and the second side wall 320 has an installation hole 326 for installing the guide member 6. The guide member 6 is suitable for being guided by the elongated hole 334. The elongated hole 334 and the guide member 6 form an extension limiting structure 80 and a contraction limiting structure 81 between the second slide rail 32 and the third slide rail 33.

[0132] Here, see Figure 7 and Figure 8For example, when the guide member 6 of the second slide rail 32 slides to the upper end of the elongated hole 334 of the third slide rail 33, the third fixing hole 43 is aligned with the second contracted fixing hole 421. When the guide member 6 of the second slide rail 32 slides to the lower end of the elongated hole 334 of the third slide rail 33, the third fixing hole 43 is aligned with the second extended fixing hole 420.

[0133] See also Figure 9 , the mounting hole 326 can be a threaded hole, and the guide member 6 can be a step screw.

[0134] Figure 21 Another possible arrangement of the elongated fixing hole 302 and the retracted fixing hole 303 on the slide rail 30 is schematically shown.

[0135] According to an exemplary embodiment of the present application, the at least two sliding rails 30 respectively have two side walls 300 opposite to each other and a bottom wall 301 connecting the two side walls 300 to each other, and the elongated fixing hole 302 includes an elongated fixing hole 302 provided on the side wall 300 and / or the contraction fixing hole 303 includes a contraction fixing hole 303 provided on the side wall 300.

[0136] It is also conceivable here that Figure 21 The elongated fixing hole 302 and / or the contracted fixing hole 303 are provided on the side wall 300. Figures 6 to 20 Various combination schemes of the elongated fixing hole 302 and / or the contracted fixing hole 303 are provided on the bottom wall 301 and the flange 312.

[0137] For example, the first and second slide rails 31 and 32 can be located on the side wall 300, while the second and third slide rails 32 and 33 remain as they are; or the elongated fixing holes 302 can be located on the side wall 300, while the retracted fixing holes 303 remain as they are, or other similar variations. For the sake of brevity, these variations are not exhaustively listed here. However, all of these variations should be considered disclosed by this application.

[0138] In this context, “first,” “second,” and “third” are merely used to distinguish similar elements but do not have other substantial meanings.

[0139] As long as it is permitted in principle, each of the features listed can be considered to be independent and can be combined with any other features in any form without departing from the scope of protection of this application. If it is permitted in principle, even if not directly mentioned, the features described for one embodiment should be considered to be applicable to other embodiments at will.

[0140] The sizes, quantities, positions, shapes, and relationships of the elements in the drawings are to be understood as examples and not as absolute limitations of the present application. Those skilled in the art will readily appreciate that simple variations in the sizes, quantities, positions, shapes, and relationships of these elements may be employed without departing from the scope of protection of the present application. For the sake of simplicity, only one functionally identical element will be designated with a reference numeral.

[0141] In the specification of this application, words indicating directions, such as "upper," "lower," "front," "back," "left," and "right," are used to describe certain elements, particularly with reference to the installation and use of the range hood in a user's home. Those skilled in the art will appreciate that the meanings of these words will vary depending on the position of the range hood.

[0142] In some drawings, especially in some perspective views, components are not shown in the orientation of the installed state in order to show the components clearly.

[0143] In the present application, the slide rail of the slide rail mechanism is, for example, a sheet metal part. "Flanged edge" and "flanged edge" refer in particular to a structure formed by bending.

[0144] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative and not limiting, unless otherwise stated. In specific implementations, multiple features may be combined with each other, depending on actual needs, where technically feasible. Various substitutions, changes, and modifications may be contemplated without departing from the spirit and scope of the present application.

Claims

1. A range hood, characterized in that: The range hood comprises: A main cavity housing (1) for carrying the main body (90) of the range hood; an air inlet housing (2) for supporting the lower air inlet (91) of the range hood; when the range hood is packaged for transportation, the air inlet housing (2) is retracted upward into the main cavity housing (1); and when the range hood is installed, the air inlet housing (2) extends downward from the main cavity housing (1); a slide rail mechanism (3) for connecting the air inlet housing (2) to the main chamber housing (1), the slide rail mechanism (3) comprising at least two slide rails (30), the at least two slide rails (30) having a contracted state in which they are retracted relative to each other to achieve the packaged transport state, and an extended state in which they are extended relative to each other to achieve the installed state; wherein the at least two slide rails (30) respectively have a shrinkage fixing hole (303); in the shrinkage state, the shrinkage fixing holes (303) of the at least two slide rails (30) can be aligned with each other so as to fix the at least two slide rails (30) to each other by means of a fastener (7) that can be inserted into the shrinkage fixing hole (303); and / or The at least two slide rails (30) each have an elongated fixing hole (302). In the elongated state, the elongated fixing holes (302) of the at least two slide rails (30) can be aligned with each other so as to fix the at least two slide rails (30) to each other by means of a fastener (7) that can be inserted into the elongated fixing hole (302).

2. The range hood according to claim 1, characterized in that: The fastener (7) is a set screw; and / or The elongated fixing holes (302) located rearward along the insertion direction among the elongated fixing holes (302) are threaded holes; and / or The shrinkage fixing hole (303) located rearward along the insertion direction among the shrinkage fixing holes (303) is a threaded hole; and / or One of the at least two slide rails (30) has a fixing hole (304), and the fixing hole (304) serves as both an elongation fixing hole (302) and a contraction fixing hole (303); and / or The at least two slide rails (30) have an elongation limiting structure (80), and the elongation fixing holes (302) are aligned with each other when the at least two slide rails (30) are in a state of maximum elongation relative to each other through the elongation limiting structure (80); and / or The at least two slide rails (30) have a contraction limiting structure (81), and the contraction fixing holes (303) are aligned with each other when the at least two slide rails (30) are in a state of maximum contraction relative to each other through the contraction limiting structure (81); and / or The at least two slide rails (30) include a first slide rail (31) for connecting to the air inlet housing (2), the first slide rail (31) having two first side walls (310) opposite to each other, a first bottom wall (311) connecting the two first side walls (310) to each other, and a flange (312) connected to the first side wall (310) on a side away from the first bottom wall (311), the elongated fixing hole (302) including a first elongated fixing hole (410) provided on the flange (312) of the first slide rail (31) and / or the contracted fixing hole (303) including a first contracted fixing hole (411) provided on the flange (312) of the first slide rail (31).

3. The range hood according to claim 2, characterized in that: The at least two slide rails (30) further comprise a second slide rail (32) and a third slide rail (33) in addition to the first slide rail (31); the third slide rail (33) is used to be connected to the main chamber housing (1) and is connected to the first slide rail (31) via the second slide rail (32); the second slide rail (32) is suitable for sheathing the first slide rail (31); and the third slide rail (33) is suitable for sheathing the second slide rail (32); and / or The first slide rail (31) has a first connection hole (313) for connecting to the air inlet housing (2), and the first connection hole (313) is provided on the first bottom wall (311); and / or The first elongated fixing hole (410) and / or the first contracted fixing hole (411) are threaded holes.

4. The range hood according to claim 3, characterized in that: The second slide rail (32) has two second side walls (320) facing each other and a second bottom wall (321) connecting the two second side walls (320) to each other; and / or The third slide rail (33) has two third side walls (330) facing each other and a third bottom wall (331) connecting the two third side walls (330) to each other; and / or The first connection hole (313) comprises three first connection holes (313) distributed along the length direction, and the first connection hole (313) is centrally arranged in the width direction; and / or The first connecting hole (313) is a threaded hole; and / or Two first elongated fixing holes (410) and two first contracted fixing holes (411) are respectively provided on the two flanges (312); and / or The elongation limiting structure (80) comprises a first elongation limiting fold (314) of the first slide rail (31) folded outward and a second elongation limiting fold (324) of the second slide rail (32) folded inward, the second elongation limiting fold (324) being adapted to stop the first elongation limiting fold (314) to prevent the first slide rail (31) from extending further downward relative to the second slide rail (32); and / or The shrinkage limiting structure (81) includes a first shrinkage limiting fold (315) folded outward of the first slide rail (31), and the first shrinkage limiting fold (315) is suitable for stopping at the lower end of the second slide rail (32) to prevent the first slide rail (31) from further shrinking into the second slide rail (32).

5. The range hood according to claim 4, characterized in that: The second bottom wall (321) has a second elongated fixing hole (420) for fixing to the third slide rail (33) in the elongated state and a second contracted fixing hole (421) for fixing to the third slide rail (33) in the contracted state, and the second contracted fixing hole (421) is also used as the elongated fixing hole (302) for fixing to the first slide rail (31) in the elongated state; and / or The third bottom wall (331) has a third fixing hole (43) that serves as both an elongation fixing hole (302) and a contraction fixing hole (303); and / or The third slide rail (33) has a third connection hole (333) for connecting to the main chamber housing (1), and the third connection hole (333) is provided on the third bottom wall (331); and / or In the assembled state, the second bottom wall (321) contacts the third bottom wall (331) on one side and contacts the flange (312) on the other side.

6. The range hood according to claim 5, characterized in that: In the extended state, the first extended fixing hole (410) and the second contracted fixing hole (421) are aligned with each other, and the second extended fixing hole (420) and the third fixing hole (43) are aligned with each other; and / or In the contracted state, the first contraction fixing hole (411), the second contraction fixing hole (421), and the third fixing hole (43) are aligned with each other; and / or The third connection hole (333) comprises three third connection holes (333) distributed along the length direction, and the third connection hole (333) is centrally arranged in the width direction; and / or The second elongated fixing hole (420) is a threaded hole; and / or The second shrinkage fixing hole (421) is a through hole; and / or The third fixing hole (43) is a through hole; and / or The third connection hole (333) is a through hole; and / or The second bottom wall (321) has a convex bump (325) suitable for avoiding the main cavity screw (5) connected to the main cavity housing (1) via the third connecting hole (333).

7. The range hood according to claim 4, characterized in that: The third side wall (330) has an elongated hole (334) extending in the longitudinal direction, and the second side wall (320) has an installation hole (326) for installing a guide member (6). The guide member (6) is suitable for being guided by the elongated hole (334). The elongated hole (334) and the guide member (6) form an extension limiting structure (80) and a contraction limiting structure (81) between the second slide rail (32) and the third slide rail (33); The guide member (6) is a stepped screw; The mounting hole (326) is a threaded hole.

8. The range hood according to claim 4, characterized in that: The first elongation limiting fold (314) is provided at the upper end of the first side wall (310); and / or The second elongation limiting fold (324) is centrally arranged on the second slide rail (32) in the length direction; and / or The first shrinkage limiting fold (315) is provided at the lower end of the first side wall (310).

9. The range hood according to any one of claims 1 to 8, characterized in that: The air inlet housing (2) has a recessed portion (20) on the back side suitable for accommodating the slide rail mechanism (3).

10. The range hood according to any one of claims 1 to 8, characterized in that: The at least two slide rails (30) respectively have two side walls (300) facing each other and a bottom wall (301) connecting the two side walls (300) to each other, the elongated fixing hole (302) includes an elongated fixing hole (302) provided on the side walls (300) and / or the contracted fixing hole (303) includes a contracted fixing hole (303) provided on the side walls (300); and / or In the extended state, two adjacent slide rails (30) of the at least two slide rails (30) have an overlap of at least 40% in length.

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