Decorative strip structure of range hood and range hood

Abstract

The decoration strip structure comprises a first decoration strip and a second decoration strip, the first decoration strip and the second decoration strip can be spliced together in the length direction, and an installation groove with an opening in the back face is formed in the end of the first decoration strip. A mounting groove is formed in the inner wall of the first decoration strip, a mounting part matched with the mounting groove is constructed at the corresponding end of the second decoration strip, the mounting part can be embedded in the mounting groove, a positioning column extending towards the back face of the first decoration strip is further arranged on the inner wall of the mounting groove of the first decoration strip, and the end of the positioning column is of a ball head structure. The mounting part is provided with a positioning hole into which the positioning column is inserted, the ball head structure is in contact with the inner wall of the positioning hole when the positioning column and the positioning hole are mounted in place, and a gap is formed between a main body of the positioning column and the positioning hole. The decorative strip has the advantages that the clamping stagnation problem is not prone to occurring in the splicing installation process of the decorative strip, and then the assembly precision can be effectively improved.

Description

Technical Field

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

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. The shell of a range hood is usually assembled from multiple parts. During the assembly process, due to the deviation between the actual size of each part and the specific three-dimensional size, it is easy to cause problems such as uneven joints and steps, which in turn lead to product appearance defects. In addition, when parts cannot be connected by screw connection, bonding, etc., the appearance of the joints of heterogeneous material parts is more abrupt, resulting in a poor overall appearance of the range hood.

[0003] In view of the above problems, most of them use decorative strips to decorate the joints, steps and joints, so that the overall appearance of the range hood is more coordinated and beautiful. For example, the Chinese utility model patent application with application number CN201521055709.8 (authorization announcement number: CN205279195U) discloses a decorative shell installation structure applied to the range hood, including a range hood body, the outer surface of the range hood body is provided with a decorative shell, the middle and lower part of the outer surface of the range hood body is provided with a decorative strip arranged along the outer periphery of the range hood body, the upper surface of the decorative strip is provided with a recessed position into which the lower part of the decorative shell can be inserted, and the decorative strip is fixed to the outer peripheral surface of the range hood body by a fixing mechanism. Under the locking action of the fixing mechanism, the decorative strip is tightly attached to the outer periphery of the range hood body and will not move outward, so that the decorative shell inserted into the recessed position of the decorative strip will not open and tilt outward under the limiting action of the decorative strip, so that the appearance of the range hood is more beautiful and generous.

[0004] The decorative strips in the above patent application use a specific positioning structure to ensure the assembly precision of the decorative strips and other parts. However, when the positioning accuracy of the positioning structure is low, the assembly precision is poor, affecting the overall appearance of the range hood. In particular, when segmented decorative strips are used, the assembly of adjacent decorative strips is prone to cause a jamming problem between the two, which in turn leads to poor assembly and affects the refinement of the product.

[0005] Therefore, existing range hoods need further improvement. Utility Model Content

[0006] The first technical problem to be solved by the utility model is to provide a decorative strip structure of a range hood which is not prone to the problem of stagnation and can effectively improve the assembly accuracy in view of the current status of the prior art.

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

[0008] The technical solution adopted by the utility model to solve the first technical problem mentioned above is: a decorative strip structure of a range hood, comprising a first decorative strip and a second decorative strip that can be spliced ​​together along the length direction, the end of the first decorative strip is provided with a mounting groove open on the back, the corresponding end of the second decorative strip is constructed as a mounting portion adapted to the mounting groove, the mounting portion can be embedded in the mounting groove, the inner wall of the mounting groove of the first decorative strip also has a positioning column extending toward the back of the first decorative strip, the end of the positioning column is arranged as a ball head structure, the mounting portion is provided with a positioning hole for the positioning column to be inserted therein, when the positioning column is installed in place in the positioning hole, the ball head structure contacts the inner wall of the positioning hole, and there is a gap between the main body of the positioning column and the positioning hole.

[0009] Generally speaking, the main body of the positioning column can be a cylindrical or prismatic structure. Preferably, the main body of the positioning column is a cylindrical structure, the outer diameter of the ball head structure is larger than the inner diameter of the positioning hole, and the outer diameter of the positioning column is smaller than the inner diameter of the positioning hole.

[0010] Considering that the outer wall surface of the decoration is generally a convex arc surface structure, in order to ensure that the installation groove of the first decorative strip has a uniform wall thickness, the inner wall surface of the installation groove is an arc wall surface, and the cross-section of the installation portion is a matching semicircle.

[0011] In order to be able to cooperate with the casing of the range hood, the back side of the first decorative strip is a plane, and the back side of the mounting portion is also a plane. When the mounting portion is installed in place in the mounting groove, the back side of the first decorative strip is flush with the back side of the mounting portion.

[0012] In order to further ensure that the first decorative strip and the second decorative strip can be seamlessly spliced, the cross-sectional size of the mounting portion is smaller than the cross-sectional size of the main body of the second decorative strip, and the mounting portion and the main body of the second decorative strip form a step portion, and when the mounting portion and the mounting groove are installed in place, the end of the mounting groove of the first decorative strip is abutted against the step portion, and the outer wall surface of the first decorative strip is smoothly connected to the outer wall surface of the main body of the second decorative strip.

[0013] As an improvement, the outer wall surface of the first decorative strip and the outer wall surface of the main body of the second decorative strip are both convex arc surfaces. The arc surface structure has smooth lines and elegant shapes, which can make the overall appearance of the range hood more beautiful.

[0014] As an improvement, the first decorative strip is a straight strip, and the second decorative strip is a bent arc structure as a whole. The second decorative strip is a bent arc structure, which is suitable for being assembled at the corner position of the housing of the range hood (mostly using an arc profile).

[0015] As an improvement, there are two second decorative strips, which are respectively connected to the two ends of the first decorative strip in the length direction. The two second decorative strips can be installed at two symmetrical corners of the housing of the range hood.

[0016] As an improvement, the back sides of the two second decorative strips are also provided with inserting pieces for mating with the external mounting base.

[0017] The technical solution adopted by the utility model to solve the second technical problem is: a range hood, comprising a casing, on which the decorative strip structure of the range hood is installed.

[0018] Compared with the prior art, the utility model has the following advantages: since a positioning column is provided on the inner wall of the mounting groove of the first decorative strip, and the end of the positioning column is arranged as a ball head structure, during the process of the positioning column being installed in the positioning hole of the mounting portion of the second decorative strip for positioning, the positioning column and the ball head at its end can rotate within a larger orientation, and during the process of the ball head rotating in the positioning hole, the main body of the positioning column will not contact the inner wall of the positioning hole to cause jamming and difficulty in assembly, thereby ensuring the assembly effect between the decorative strips and improving the assembly accuracy of the decorative strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the decorative strip according to an embodiment of the utility model;

[0020] Figure 2 This is an exploded view of a decorative strip according to an embodiment of the present utility model;

[0021] Figure 3 An exploded view of the decorative strip of the embodiment of the utility model from another angle;

[0022] Figure 4 A cross-sectional view of a decorative strip according to an embodiment of the utility model;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0024] Figure 6 The figure is a three-dimensional structural schematic diagram of the smoke collecting hood of the range hood according to the embodiment of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0027] Figure 1-Figure 6 The decorative strip of the range hood of the utility model and a preferred embodiment of the range hood are shown. The range hood includes a casing and a centrifugal fan arranged in the casing. The casing generally includes a fan frame and a fume hood 10 arranged at the bottom of the fan frame (the attached figure of this embodiment only shows the fume hood). The inner cavity of the fan frame is connected with the inner cavity of the fume hood 10. An air suction port (not shown) is provided on the front side wall of the fume hood 10, and external smoke can enter the fume hood 10 through the air suction port. The centrifugal fan is arranged in the fan frame. When the centrifugal fan is running, negative pressure is generated, and external oil smoke can be sucked into the fume hood 10 through the air suction port. An oil net is also provided at the air suction port of the fume hood 10 for filtering oil smoke. An oil cup is provided at the bottom of the fume hood 10. The oil cup is in the shape of a long strip extending left and right, and is used to receive the oil stains flowing down from the fume hood 10. The front part of the smoke hood 10 is also provided with a smoke shield that can be deflected forward and backward relative to the smoke hood 10. The smoke shield is connected to the main body of the smoke hood 10 through a hinge motion mechanism, and can be deflected forward to open the above-mentioned air inlet and deflected backward to block and close the above-mentioned air inlet. The hinge motion mechanism for driving the smoke shield to deflect can adopt a conventional hinge motion mechanism in the prior art, which will not be described in detail here.

[0028] Corresponding decorative strips may be provided at the joints between the top of the front side panel of the smoke hood 10 and the top plate 11, the front upper corner of the left side panel, and the front upper corner of the right side panel, wherein the decorative strips of the present embodiment are segmented decorative strips, specifically, the decorative strips include a first decorative strip 21 extending left and right and two second decorative strips 22 spliced ​​on the first decorative strip 21. Considering that the two corner positions of the upper front side of the smoke hood 10 mostly adopt an arc-shaped profile, for this reason, the second decorative strip 22 of the present embodiment is a bent arc-shaped structure as a whole, which is adapted to the arc-shaped profile of the corner of the smoke hood 10. The first decorative strip 21 is a straight long strip, which is installed at the joint between the top edge of the front side panel of the casing and the front side edge of the top plate 11. The back of the second decorative strip 22 also has a plug-in 223 for mating with an external mounting base.

[0029] An important inventive point of this embodiment is that the positioning and assembly structure between the first decorative strip 21 and the second decorative strip 22 can realize the smooth connection and seamless splicing of the decorative strips. The first decorative strip 21 and the second decorative strip 22 can be tightly connected together along the length direction. The first decorative strip 21 is designed with a mounting groove 211 with an open back at its end, and the second decorative strip 22 is constructed with a mounting portion 221 matching the mounting groove 211 at the corresponding end. Considering the appearance requirements of the decorative strip, the outer wall surface of the first decorative strip 21 is often designed as a convex arc surface structure, and the back surface is a plane. Correspondingly, the outer wall surface of the end of the second decorative strip 22 corresponding to the first decorative strip 21 is also a convex arc surface, and the back surface is also a plane. In this way, when the two parts are fully installed in place, the backs of the two can form a continuous and consistent surface. After the two decorative strips are spliced, it can be ensured that they are closely matched with the casing of the range hood and the surface is flush.

[0030] The inner wall surface where the mounting groove 211 of the first decorative strip 21 is located is designed to be arc-shaped, and the cross section of the matching mounting portion 221 on the second decorative strip 22 is designed to be semicircular. A positioning column 212 is designed on the inner wall of the mounting groove 211 of the first decorative strip 21. The positioning column 212 extends toward the back of the first decorative strip 21, and its end is designed as a ball head structure 2120, which enables the positioning column 212 to be firmly inserted into the corresponding positioning hole 2210 on the mounting portion 221 of the second decorative strip 22. When the positioning column 212 is fully aligned with the positioning hole 2210 and installed in place, the ball head structure 2120 will be in close contact with the inner wall of the positioning hole 2210, and a small gap will be left between the main body of the positioning column 212 and the positioning hole 2210. Such a design can not only ensure the stability of the connection, but also allow a certain degree of activity space to meet the fine-tuning requirements under different installation conditions. In terms of shape selection, the main body of the positioning column 212 is usually cylindrical or prism-shaped, and is preferably cylindrical in this embodiment, which helps to simplify the manufacturing process and enhance the reliability of the structure. In addition, the outer diameter of the ball head structure 2120 is larger than the inner diameter of the positioning hole 2210, while the outer diameter of the positioning column 212 itself is smaller than the inner diameter of the positioning hole 2210. This size design is to ensure the stability and anti-falling property of the structure after installation, especially to ensure that the main body of the positioning column 212 will not contact the inner wall of the positioning hole 2210 and cause the phenomenon of stuck and difficult assembly.

[0031] In order to achieve seamless connection between the first decorative strip 21 and the second decorative strip 22, the cross-sectional dimension of the installation portion 221 is designed to be slightly smaller than the cross-sectional dimension of the main body of the second decorative strip 22, thereby forming a step portion 222 at the joint. When installed in place, the end of the first decorative strip 21 will be tightly combined with the step portion 222, ensuring a smooth transition of the outer wall surface and seamless connection.

Claims

1. A decorative strip structure for a range hood, comprising a first decorative strip (21) and a second decorative strip (22) which can be spliced ​​together along a length direction, characterized in that: The end of the first decorative strip (21) is provided with a mounting groove (211) which is open on the back side, and the corresponding end of the second decorative strip (22) is constructed as a mounting portion (221) adapted to the mounting groove (211), and the mounting portion (221) can be embedded in the mounting groove (211). The inner wall of the mounting groove (211) of the first decorative strip (21) is also provided with a positioning column (212) extending toward the back side of the first decorative strip (21), and the end of the positioning column (212) is provided with a ball head structure (2120), and a positioning hole (2210) for inserting the positioning column (212) is provided on the mounting portion (221), and when the positioning column (212) is installed in place in the positioning hole (2210), the ball head structure (2120) contacts the inner wall of the positioning hole (2210), and a gap is provided between the main body of the positioning column (212) and the positioning hole (2210).

2. The decorative strip structure of the range hood according to claim 1, characterized in that: The main body of the positioning column (212) is a cylinder, the outer diameter of the ball head structure (2120) is larger than the inner diameter of the positioning hole (2210), and the outer diameter of the positioning column (212) is smaller than the inner diameter of the positioning hole (2210).

3. The decorative strip structure of the range hood according to claim 1, characterized in that: The inner wall surface of the mounting groove (211) is an arc-shaped wall surface, and the cross section of the mounting portion (221) is a matching semicircular shape.

4. The decorative strip structure of the range hood according to claim 3, characterized in that: The back side of the first decorative strip (21) is a plane, and the back side of the mounting portion (221) is also a plane; when the mounting portion (221) is installed in place in the mounting groove (211), the back side of the first decorative strip (21) is flush with the back side of the mounting portion (221).

5. The decorative strip structure of the range hood according to claim 1, characterized in that: The size of the cross section of the mounting portion (221) is smaller than the size of the cross section of the main body of the second decorative strip (22), and a step portion (222) is formed between the mounting portion (221) and the main body of the second decorative strip (22); when the mounting portion (221) is installed in place in the mounting groove (211), the end of the mounting groove (211) of the first decorative strip (21) abuts against the step portion (222), and the outer wall surface of the first decorative strip (21) is smoothly connected to the outer wall surface of the main body of the second decorative strip (22).

6. The decorative strip structure of the range hood according to claim 5, characterized in that: The outer wall surface of the first decorative strip (21) and the outer wall surface of the main body of the second decorative strip (22) are both outwardly convex arc surfaces.

7. The decorative strip structure of a range hood according to any one of claims 1 to 6, characterized in that: The first decorative strip (21) is in the shape of a straight long strip, and the second decorative strip (22) is in the shape of a bent arc as a whole.

8. The decorative strip structure of the range hood according to claim 7, characterized in that: There are two second decorative strips (22), which are respectively connected to the two ends of the first decorative strip (21) in the length direction.

9. The decorative strip structure of the range hood according to claim 8, characterized in that: The back sides of the two second decorative strips (22) are also provided with inserting pieces (223) for engaging with an external mounting base.

10. A range hood, comprising a housing, characterized in that: The casing is provided with a decorative strip structure for a range hood as claimed in any one of claims 1 to 9.

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