Decorative cover for range hood and manufacturing method thereof

Abstract

The invention discloses a decorative cover for a range hood and a manufacturing method thereof.The decorative cover comprises a fixed cover and a lifting cover, the lifting cover is movably connected to the inner side of the fixed cover through a first sliding assembly, a smoke exhaust pipe supporting mechanism is arranged in the lifting cover, and the smoke exhaust pipe supporting mechanism is connected to the inner side of the lifting cover through a second sliding assembly; the smoke exhaust pipe of the range hood is supported and positioned. The method comprises the steps of machining of the lifting cover, installation of the smoke exhaust pipe supporting mechanism, machining of the fixing cover and assembling of the decoration cover. Through the design of the smoke exhaust pipe supporting mechanism, the smoke exhaust pipe above the range hood can be fixed, noise caused by shaking of the smoke exhaust pipe in the oil smoke discharging process is prevented, meanwhile, the situation that the sealing performance of a connector is affected due to loosening of the connector caused by long-time shaking of the smoke exhaust pipe can be avoided, and the manufacturing method of the decorative cover is simple in step and low in cost. The stability and reliability of the whole decorative cover are improved, the smoke exhaust pipe can be clamped and positioned, and the service life of the smoke exhaust pipe of the range hood is prolonged.

Description

Technical Field

[0001] The invention relates to a decorative cover for a range hood and a manufacturing method thereof. Background Art

[0002] The decorative cover of the range hood is used to cover the air outlet hood and air duct on the top of the range hood, which plays a role of beauty and decoration. The decorative cover can usually be pulled out from the top of the range hood and the height can be adjusted according to the height of the user's house.

[0003] Although the decorative cover in the prior art can shield the exhaust pipe and improve the overall aesthetics of the range hood, the decorative cover is separated from the exhaust pipe and the exhaust pipe is prone to shaking when the range hood is exhausting air, which not only increases the noise but also affects the sealing performance of the interface and the service life of the exhaust pipe. Summary of the invention

[0004] The purpose of the present invention is to provide a technical solution for a decorative cover for a range hood and a manufacturing method thereof in view of the deficiencies in the prior art. Through the design of the exhaust pipe support mechanism, the exhaust pipe above the range hood can be fixed to prevent noise generated by the shaking of the exhaust pipe during the exhaust of oil smoke, and at the same time, it can prevent the exhaust pipe from shaking for a long time and causing the interface to loosen, affecting the sealing performance of the interface. The manufacturing method of the decorative cover has simple steps, which not only improves the stability and reliability of the entire decorative cover, but also can clamp and position the exhaust pipe, and the installation and disassembly are convenient and quick, thereby extending the service life of the range hood exhaust pipe.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The decorative cover for the range hood comprises a fixed cover and a lifting cover, the lifting cover is movably connected to the inner side of the fixed cover by a first sliding component, and is characterized in that: a smoke exhaust pipe support mechanism is arranged in the lifting cover, and the smoke exhaust pipe support mechanism is connected to the inner side of the lifting cover by a second sliding component, so as to realize the support and positioning of the smoke exhaust pipe of the range hood; through the design of the smoke exhaust pipe support mechanism, the smoke exhaust pipe above the range hood can be fixed to prevent noise from being generated due to the shaking of the smoke exhaust pipe during the process of discharging oil smoke, and at the same time, it can prevent the smoke exhaust pipe from shaking for a long time to cause the interface to loosen, affecting the sealing performance of the interface; the second sliding component can adjust the size of the smoke exhaust pipe support mechanism to meet the support requirements of exhaust pipes of different lengths, thereby improving the flexibility and reliability of the use of the smoke exhaust pipe support mechanism.

[0007] Furthermore, the smoke exhaust pipe supporting mechanism includes an upper arc rod, a lower arc rod and an arc-shaped fastening rod. The upper arc rod is connected to the top of the lower arc top rod through a telescopic assembly. Arc holes are provided on the upper arc rod and the lower arc rod. The arc-shaped fastening rod is movably connected to the arc hole. The distance between the upper arc rod and the lower arc rod can be adjusted by the telescopic assembly to meet the clamping and positioning of smoke exhaust pipes of different lengths. The arc-shaped fastening rod is movably connected to the upper arc rod and the lower arc rod through the arc hole. When the smoke exhaust pipe needs to be clamped and positioned, it only needs to be inserted into the upper arc rod and the lower arc rod, and the arc-shaped fastening rod is pulled out so that the upper arc rod and the arc-shaped fastening rod, or the lower arc rod and the arc-shaped fastening rod cooperate to form a closed ring, so as to clamp and position the smoke exhaust pipe and improve the stability and reliability of the installation of the smoke exhaust pipe.

[0008] Furthermore, the telescopic assembly includes a rotating rod, a fixed rod and a threaded rod. The fixed rod is vertically fixedly connected to the top surface of the lower arc rod, the rotating rod is rotatably connected to the bottom surface of the upper arc rod, the bottom end of the rotating rod is fixedly connected to the threaded rod, and the threaded rod and the fixed rod are threadedly connected. The rotating rod can be driven to rotate synchronously by rotating the rotating rod, thereby realizing relative movement between the threaded rod and the fixed rod, and adjusting the spacing between the fixed rod and the rotating rod to meet the spacing adjustment between the upper arc rod and the lower arc rod.

[0009] Furthermore, a slot is provided on the top surface of the end of the upper arc rod and the lower arc rod, and a second positioning hole is provided in the slot. When the arc-shaped fastening rod is connected with the upper arc rod or the lower arc rod to form an annular closed structure, a screw is inserted into the second positioning hole to achieve a fixed connection between the arc-shaped fastening rod and the upper arc rod or the lower arc rod.

[0010] Furthermore, the upper arc rod and the lower arc rod are connected to the second sliding assembly through the first cantilever and the second cantilever respectively, and the inner side surfaces of the upper arc rod and the lower arc rod are arc surfaces. The first cantilever and the second cantilever improve the connection stability and reliability between the upper arc rod, the lower arc rod and the lifting cover. The design of the arc surface can reduce the wear on the smoke exhaust pipe and extend the service life of the smoke exhaust pipe.

[0011] Furthermore, the second sliding assembly includes a second slide rail and a slider. The second slide rail is arranged in parallel on the three inner sides of the lifting cover. The second slide rail is provided with a second slide groove. The slider is symmetrically arranged on both sides of the end of the first cantilever and matches the second slide groove. A first positioning hole is provided at the end of the second cantilever. The second cantilever is fixedly connected to the second slide rail by screws passing through the second slide rail and the first positioning hole. The first cantilever moves up and down along the second slide groove through the slider, which meets the clamping and positioning of smoke exhaust pipes of different lengths and sizes, and the adjustment is flexible and convenient. The second cantilever can be fixedly connected to the second slide rail through the first positioning hole and the screw, so as to support the up and down movement of the first cantilever and the upper arc rod.

[0012] Furthermore, the first sliding assembly includes a first sliding rail and a roller. The first sliding rail is arranged in parallel on the three inner side surfaces of the fixed cover. The first sliding rail is provided with a first sliding groove. The roller is arranged on the three outer side surfaces of the lifting cover. The roller is limited in the first sliding groove to realize the up and down movement of the lifting cover along the fixed cover. The roller moves up and down along the first sliding groove, thereby improving the stability and reliability of the connection between the lifting cover and the fixed cover.

[0013] Furthermore, a fixing strip is provided on the rear side of the fixing cover, and a first mounting hole is provided on the fixing strip. By connecting the first mounting hole on the fixing strip with a hook on the wall, the fixing cover can be fixedly installed, and the installation and disassembly are convenient and quick.

[0014] Furthermore, a fixing block is arranged on the rear side of the lifting cover, and a second mounting hole is arranged on the fixing block. By connecting the second mounting hole on the fixing block with a hook on the wall, the lifting cover can be fixedly installed, and the installation and disassembly are convenient and quick.

[0015] The method for manufacturing the decorative cover for a range hood as described above is characterized by comprising the following steps:

[0016] 1) Lifting cover processing

[0017] a. First, make the corresponding lifting cover according to the design requirements, polish the surface of the lifting cover, install the fixing block symmetrically along the opening side of the lifting cover, and open a second mounting hole on the fixing block to facilitate the connection between the lifting cover and the wall;

[0018] b. Then determine the installation position of the second slide rail along the three inner sides of the lifting cover and mark them to improve the installation accuracy of the second slide rail and the stability and reliability of the installation of the smoke exhaust pipe support mechanism;

[0019] c. Then, the corresponding second slide rail is processed, and a second slide groove is opened along one side of the second slide block. The processed second slide blocks are fixedly mounted on the three inner sides of the lifting cover in parallel, and the three second slide blocks are ensured to be located at the same height position, so as to improve the stability of the lifting cover moving up and down along the fixed cover and reduce the friction force;

[0020] d. Finally, rollers are installed along the three outer sides of the lifting cover so that the three rollers are located in the same horizontal plane to improve the stability and reliability of the movement of the lifting cover;

[0021] 2) Installation of exhaust pipe support mechanism

[0022] a. First, make the corresponding upper arc rod and lower arc rod according to the design requirements, open an arc hole in the upper arc rod and the lower arc rod along the bending direction, then open an arc surface along the inner side of the upper arc rod and the lower arc rod, and open a clamping groove along the top surface of one end of the upper arc rod and the lower arc rod, and open a second positioning hole along the bottom of the clamping groove. The design of the arc hole facilitates the installation of the arc fastening rod and the clamping and positioning of the smoke exhaust pipe. The design of the arc surface can reduce the wear of the smoke exhaust pipe and extend the service life of the smoke exhaust pipe;

[0023] b. Then, a corresponding arc-shaped fastening rod is processed according to the size of the arc-shaped hole, and one end of the arc-shaped fastening rod is inserted into the arc-shaped hole. A through hole matching the second positioning hole is opened on one side of the arc-shaped fastening rod close to the card slot;

[0024] c. Then, determine the spacing between the upper arc rod and the lower arc rod according to the length of the second slide groove, and process the corresponding fixed rod, rotating rod and threaded rod. Evenly install the fixed rod on the top surface of the lower arc rod and keep it perpendicular to the lower arc rod. Evenly rotate the rotating rod to connect it to the bottom surface of the upper arc rod and keep it perpendicular to the upper arc rod. Then, fix the threaded rod on the bottom end of the rotating rod, insert the threaded rod into the fixed rod from top to bottom, and realize the threaded connection between the fixed rod and the threaded rod. Through the design of the rotating rod, threaded rod and fixed rod, the spacing between the upper arc rod and the lower arc rod can be adjusted to meet the clamping and positioning of smoke exhaust pipes of different lengths and sizes.

[0025] d. Finally, according to the spacing between the upper arc rod, the lower arc rod and the inner side of the lifting cover, select the appropriate first cantilever and the second cantilever, distribute the first cantilever at equal intervals on the outer circumference of the upper arc rod, and the first cantilever and the upper arc rod are located in the same horizontal plane, one end of the first cantilever is fixedly connected to the upper arc rod, and sliders are symmetrically installed on both sides of the other end of the first cantilever, and at the same time, distribute the second cantilever at equal intervals on the outer circumference of the lower arc rod, and the second cantilever and the lower arc rod are located in the same horizontal plane, one end of the second cantilever is fixedly connected to the lower arc rod, and the other end of the second cantilever is provided with a first positioning hole, and the first cantilever and the second cantilever can improve the connection strength and stability between the upper arc rod and the lower arc rod and the lifting cover.

[0026] 3) Fixed cover processing

[0027] a. First, determine the size of the fixed cover according to the size of the lifting cover, and process the corresponding fixed cover, and grind the surface of the fixed cover;

[0028] b. Then, two parallel fixing strips are installed along the rear side of the fixing cover, and first mounting holes are opened along the fixing strips at equal intervals to facilitate the fixing and mounting of the fixing cover;

[0029] c. Then install seals along the bottom of the three sides of the fixed cover to improve the stability of the connection;

[0030] d. Finally, a suitable first slide rail is selected according to the lifting height of the lifting cover, and a first slide groove matching the roller is provided on the first slide rail to improve the stability of the lifting cover moving up and down along the fixed cover;

[0031] 4) Decorative cover assembly

[0032] a. First, determine the installation height of the range hood exhaust pipe according to the installation height of the range hood, and sleeve the lifting cover on the inner side of the fixed cover through the first sliding component according to the height position of the exhaust pipe, so that the fixed cover and the lifting cover meet the installation requirements;

[0033] b. Then, according to the position of the smoke exhaust pipe in the lifting cover, the spacing between the upper arc rod and the lower arc rod is adjusted by rotating the rotating rod. The lower arc rod is fixedly connected to the second slide rail through the second cantilever. The upper arc rod moves to the desired position along the second slide rail under the action of the threaded rod and the rotating rod;

[0034] c. Then, the smoke exhaust pipe is passed through the fixed cover and the lifting cover from bottom to top in sequence. The part of the smoke exhaust pipe located in the lifting cover is fixed by the smoke exhaust pipe support mechanism. When fixing, the upper and lower arc-shaped fastening rods are pulled out from the upper arc-shaped rod and the lower arc-shaped rod respectively, and the other ends are inserted, and the screws are passed through the second positioning holes in the card slot to realize the fixed connection between the arc-shaped fastening rod and the upper arc-shaped rod and the lower arc-shaped rod;

[0035] d. Finally, hang the lifting cover and fixed cover on the preset hooks on the wall.

[0036] The manufacturing method of the decorative cover has simple steps, which not only improves the stability and reliability of the entire decorative cover, but also can clamp and position the smoke exhaust pipe, making installation and disassembly convenient and quick, thereby extending the service life of the range hood exhaust pipe.

[0037] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0038] 1. Through the design of the exhaust pipe support mechanism, the exhaust pipe above the range hood can be fixed to prevent noise caused by the shaking of the exhaust pipe during the exhaust of oil smoke. At the same time, it can prevent the exhaust pipe from shaking for a long time, causing the interface to loosen and affect the sealing performance of the interface.

[0039] 2. The second sliding component can adjust the size of the smoke exhaust pipe support mechanism to meet the support requirements of smoke exhaust pipes of different lengths, thereby improving the use flexibility and reliability of the smoke exhaust pipe support mechanism.

[0040] 3. The manufacturing method of the decorative cover has simple steps, which not only improves the stability and reliability of the entire decorative cover, but also can clamp and position the exhaust pipe, making installation and disassembly convenient and quick, thereby extending the service life of the range hood exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below in conjunction with the accompanying drawings:

[0042] Figure 1 This is a rendering of the decorative cover for a range hood and the decorative cover in the manufacturing method thereof of the present invention;

[0043] Figure 2 It is a structural schematic diagram of the fixed cover in the present invention;

[0044] Figure 3 It is a structural schematic diagram of the lifting cover in the present invention;

[0045] Figure 4 It is a structural schematic diagram of the smoke exhaust pipe supporting mechanism in the present invention;

[0046] Figure 5 for Figure 4 A partial enlarged view of point Ⅰ in the middle;

[0047] Figure 6 It is a cross-sectional schematic diagram of the upper arc rod in the present invention.

[0048] In the figure: 1-fixed cover; 2-lifting cover; 3-fixed strip; 4-seal strip; 5-first slide rail; 6-first slide groove; 7-roller; 8-fixed block; 9-second slide rail; 10-second slide groove; 11-smoke exhaust pipe support mechanism; 12-upper arc rod; 13-lower arc rod; 14-arc-shaped fastening rod; 15-arc-shaped hole; 16-rotating rod; 17-fixed rod; 18-threaded rod; 19-first cantilever; 20-slider; 21-second cantilever; 22-first positioning hole; 23-slot; 24-second positioning hole. DETAILED DESCRIPTION

[0049] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0052] like Figures 1 to 6 As shown, the decorative cover for the range hood of the present invention comprises a fixed cover 1 and a lifting cover 2. A fixing strip 3 is provided on the rear side of the fixed cover 1, and a first mounting hole is provided on the fixing strip 3. By connecting the first mounting hole on the fixing strip 3 with a hook on the wall, the fixed cover 1 can be fixedly installed, and installation and removal are convenient and quick. A fixing block 8 is provided on the rear side of the lifting cover 2, and a second mounting hole is provided on the fixing block 8. By connecting the second mounting hole on the fixing block 8 with a hook on the wall, the lifting cover 2 can be fixedly installed, and installation and removal are convenient and quick.

[0053] The lifting cover 2 is movably connected to the inner side of the fixed cover 1 through a first sliding assembly. The first sliding assembly includes a first slide rail 5 and a roller 7. The first slide rail 5 is arranged in parallel on the three inner side surfaces of the fixed cover 1. The first slide rail 5 is provided with a first slide groove 6. The roller 7 is arranged on the three outer side surfaces of the lifting cover 2. The roller 7 is limited in the first slide groove 6 to realize the up and down movement of the lifting cover 2 along the fixed cover 1. The roller 7 moves up and down along the first slide groove 6, thereby improving the stability and reliability of the connection between the lifting cover 2 and the fixed cover 1.

[0054] A smoke exhaust pipe support mechanism 11 is arranged in the lifting cover 2, and the smoke exhaust pipe support mechanism 11 includes an upper arc rod 12, a lower arc rod 13 and an arc fastening rod 14. The upper arc rod 12 is connected to the top of the lower arc top rod through a telescopic assembly. The upper arc rod 12 and the lower arc rod 13 are both provided with an arc hole 15. The arc fastening rod 14 is movably connected to the arc hole 15. The distance between the upper arc rod 12 and the lower arc rod 13 can be adjusted by the telescopic assembly to meet the installation requirements of smoke exhaust pipes of different lengths. Clamp positioning, the arc-shaped fastening rod 14 is movably connected to the upper arc-shaped rod 12 and the lower arc-shaped rod 13 through the arc-shaped hole 15. When the smoke exhaust pipe needs to be clamped and positioned, the smoke exhaust pipe only needs to be inserted into the upper arc-shaped rod 12 and the lower arc-shaped rod 13, and the arc-shaped fastening rod 14 is pulled out to form a closed ring between the upper arc-shaped rod 12 and the arc-shaped fastening rod 14, or between the lower arc-shaped rod 13 and the arc-shaped fastening rod 14, so as to clamp and position the smoke exhaust pipe, thereby improving the stability and reliability of the installation of the smoke exhaust pipe.

[0055] The telescopic assembly includes a rotating rod 16, a fixed rod 17 and a threaded rod 18. The fixed rod 17 is vertically fixedly connected to the top surface of the lower arc rod 13. The rotating rod 16 is rotatably connected to the bottom surface of the upper arc rod 12. The bottom end of the rotating rod 16 is fixedly connected to the threaded rod 18. The threaded rod 18 and the fixed rod 17 are threadedly connected. The rotating rod 16 can drive the threaded rod 18 to rotate synchronously, thereby realizing the relative movement between the threaded rod 18 and the fixed rod 17, and adjusting the spacing between the fixed rod 17 and the rotating rod 16 to meet the spacing adjustment between the upper arc rod 12 and the lower arc rod 13. A clamping groove 23 is provided on the top surface of the end of the upper arc rod 12 and the lower arc rod 13, and a second positioning hole 24 is provided in the clamping groove 23. When the arc fastening rod 14 is connected to the upper arc rod 12 or the lower arc rod 13 to form an annular closed structure, a screw is inserted into the second positioning hole 24 to realize the fixed connection between the arc fastening rod 14 and the upper arc rod 12 or the lower arc rod 13. The upper arc rod 12 and the lower arc rod 13 are connected to the second sliding assembly through the first cantilever 19 and the second cantilever 21 respectively. The inner side surfaces of the upper arc rod 12 and the lower arc rod 13 are arc surfaces. The first cantilever 19 and the second cantilever 21 improve the connection stability and reliability between the upper arc rod 12, the lower arc rod 13 and the lifting cover 2. The design of the arc surface can reduce the wear on the smoke exhaust pipe and extend the service life of the smoke exhaust pipe.

[0056] The smoke exhaust pipe supporting mechanism 11 is connected to the inner side of the lifting cover 2 through the second sliding component to realize the support and positioning of the range hood smoke exhaust pipe. The second sliding component includes a second slide rail 9 and a slider 20. The second slide rail 9 is arranged in parallel on the three inner sides of the lifting cover 2. The second slide rail 9 is provided with a second slide groove 10. The slider 20 is symmetrically arranged on both sides of the end of the first cantilever 19 and matches the second slide groove 10. The end of the second cantilever 21 is provided with a first positioning hole 22. The second cantilever 21 is fixedly connected to the second slide rail 9 by screws passing through the second slide rail 9 and the first positioning hole 22. The first cantilever 19 moves up and down along the second slide groove 10 through the slider 20, which meets the clamping and positioning of smoke exhaust pipes of different lengths and sizes, and the adjustment is flexible and convenient. The second cantilever 21 can be fixedly connected to the second slide rail 9 through the first positioning hole 22 and screws, and supports the up and down movement of the first cantilever 19 and the upper arc rod 12. Through the design of the smoke exhaust pipe support mechanism 11, the smoke exhaust pipe above the range hood can be fixed to prevent noise caused by the shaking of the smoke exhaust pipe during the exhaust of oil smoke. At the same time, it can prevent the smoke exhaust pipe from shaking for a long time and causing the interface to loosen, affecting the sealing performance of the interface. The second sliding component can adjust the size of the smoke exhaust pipe support mechanism 11 to meet the support requirements of smoke exhaust pipes of different lengths, thereby improving the flexibility and reliability of the use of the smoke exhaust pipe support mechanism 11.

[0057] The manufacturing method of the decorative cover for the range hood as described above comprises the following steps:

[0058] 1) Lifting cover 2 processing

[0059] a. First, make the corresponding lifting cover 2 according to the design requirements, polish the surface of the lifting cover 2, symmetrically install the fixing block 8 along the opening side of the lifting cover 2, and open a second mounting hole on the fixing block 8 to facilitate the connection between the lifting cover 2 and the wall;

[0060] b. Then, the installation position of the second slide rail 9 is determined along the three inner sides of the lifting cover 2, and marked to improve the installation accuracy of the second slide rail 9 and the stability and reliability of the installation of the smoke exhaust pipe support mechanism 11;

[0061] c. Then, the corresponding second slide rail 9 is processed, and a second slide groove 10 is opened along one side of the second slide block 20. The processed second slide blocks 20 are fixedly mounted in parallel on the three inner side surfaces of the lifting cover 2 to ensure that the three second slide blocks 20 are located at the same height position, thereby improving the stability of the lifting cover 2 moving up and down along the fixed cover 1 and reducing friction;

[0062] d. Finally, rollers 7 are installed along the three outer sides of the lifting cover 2 so that the three rollers 7 are located in the same horizontal plane to improve the stability and reliability of the movement of the lifting cover 2;

[0063] 2) Installation of exhaust pipe support mechanism 11

[0064] a. First, the corresponding upper arc rod 12 and lower arc rod 13 are manufactured according to the design requirements, and an arc hole 15 is opened in the upper arc rod 12 and the lower arc rod 13 along the bending direction, and then an arc surface is opened along the inner side of the upper arc rod 12 and the lower arc rod 13, and a clamping groove 23 is opened along the top surface of one end of the upper arc rod 12 and the lower arc rod 13, and a second positioning hole 24 is opened along the bottom of the clamping groove 23. The design of the arc hole 15 facilitates the installation of the arc fastening rod 14 and the clamping and positioning of the smoke exhaust pipe. The design of the arc surface can reduce the wear of the smoke exhaust pipe and extend the service life of the smoke exhaust pipe;

[0065] b. Then, the corresponding arc-shaped fastening rod 14 is processed according to the size of the arc-shaped hole 15, and one end of the arc-shaped fastening rod 14 is inserted into the arc-shaped hole 15. A through hole matching the second positioning hole 24 is opened on one side of the arc-shaped fastening rod 14 close to the slot 23;

[0066] c. Then, the spacing between the upper arc rod 12 and the lower arc rod 13 is determined according to the length of the second slide groove 10, and the corresponding fixed rod 17, rotating rod 16 and threaded rod 18 are processed. The fixed rod 17 is evenly installed on the top surface of the lower arc rod 13 and kept perpendicular to the lower arc rod 13. The rotating rod 16 is evenly rotated and connected to the bottom surface of the upper arc rod 12 and kept perpendicular to the upper arc rod 12. Then the threaded rod 18 is fixedly installed at the bottom end of the rotating rod 16, and the threaded rod 18 is inserted into the fixed rod 17 from top to bottom to realize the threaded connection between the fixed rod 17 and the threaded rod 18. Through the design of the rotating rod 16, the threaded rod 18 and the fixed rod 17, the spacing between the upper arc rod 12 and the lower arc rod 13 can be adjusted to meet the clamping and positioning of smoke exhaust pipes of different lengths;

[0067] d. Finally, according to the spacing between the upper arc rod 12, the lower arc rod 13 and the inner side of the lifting cover 2, the appropriate first cantilever 19 and the second cantilever 21 are selected, and the first cantilever 19 is evenly distributed on the outer circumference of the upper arc rod 12, and the first cantilever 19 and the upper arc rod 12 are located in the same horizontal plane, one end of the first cantilever 19 is fixedly connected to the upper arc rod 12, and sliders 20 are symmetrically installed on both sides of the other end of the first cantilever 19, and the second cantilever 21 is evenly distributed on the outer circumference of the lower arc rod 13 at an equal distance, and the second cantilever 21 and the lower arc rod 13 are located in the same horizontal plane, one end of the second cantilever 21 is fixedly connected to the lower arc rod 13, and the other end of the second cantilever 21 is provided with a first positioning hole 22, and the first cantilever 19 and the second cantilever 21 can improve the connection strength and stability between the upper arc rod 12 and the lower arc rod 13 and the lifting cover 2.

[0068] 3) Processing of fixed cover 1

[0069] a. First, determine the size of the fixed cover 1 according to the size of the lifting cover 2, and process the corresponding fixed cover 1, and grind the surface of the fixed cover 1;

[0070] b. Then, two mutually parallel fixing strips 3 are installed along the rear side of the fixing cover 1, and first mounting holes are opened along the fixing strips 3 at equal intervals to facilitate the fixing and mounting of the fixing cover 1;

[0071] c. Then install the seal strips 4 along the bottom of the three sides of the fixed cover 1 to improve the stability of the connection;

[0072] d. Finally, a suitable first slide rail 5 is selected according to the lifting height of the lifting cover 2, and a first slide groove 6 matching the roller 7 is provided on the first slide rail 5 to improve the stability of the lifting cover 2 moving up and down along the fixed cover 1;

[0073] 4) Decorative cover assembly

[0074] a. First, determine the installation height of the range hood exhaust pipe according to the installation height of the range hood, and sleeve the lifting cover 2 on the inner side of the fixed cover 1 through the first sliding component according to the height position of the exhaust pipe, so that the fixed cover 1 and the lifting cover 2 meet the installation requirements;

[0075] b. Then, according to the position of the smoke exhaust pipe in the lifting cover 2, the spacing between the upper arc rod 12 and the lower arc rod 13 is adjusted by rotating the rotating rod 16. The lower arc rod 13 is fixedly connected to the second slide rail 9 through the second cantilever 21. The upper arc rod 12 moves to the desired position along the second slide rail 9 under the action of the threaded rod 18 and the rotating rod 16;

[0076] c. Then, the smoke exhaust pipe is passed through the fixed cover 1 and the lifting cover 2 from bottom to top in sequence. The part of the smoke exhaust pipe located in the lifting cover 2 is fixed by the smoke exhaust pipe support mechanism 11. When fixing, the upper and lower arc-shaped fastening rods 14 are pulled out from the upper arc-shaped rod 12 and the lower arc-shaped rod 13 respectively, and the other ends are inserted, and the screws are passed through the second positioning holes 24 in the card slots 23 to achieve the fixed connection between the arc-shaped fastening rods 14 and the upper arc-shaped rod 12 and the lower arc-shaped rod 13;

[0077] d. Finally, hang the lifting cover 2 and the fixed cover 1 on the preset hooks on the wall.

[0078] The manufacturing method of the decorative cover has simple steps, which not only improves the stability and reliability of the entire decorative cover, but also can clamp and position the smoke exhaust pipe, making installation and disassembly convenient and quick, thereby extending the service life of the range hood exhaust pipe.

[0079] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A decorative cover for a range hood, comprising a fixed cover and a lifting cover, wherein the lifting cover is movably connected to the inner side of the fixed cover through a first sliding assembly, characterized in that: A smoke exhaust pipe support mechanism is arranged in the lifting cover, and the smoke exhaust pipe support mechanism is connected to the inner side of the lifting cover through a second sliding component to realize the support and positioning of the range hood smoke exhaust pipe, the smoke exhaust pipe support mechanism comprises an upper arc rod, a lower arc rod and an arc-shaped fastening rod, the upper arc rod is connected to the top of the lower arc top rod through a telescopic component, the upper arc rod and the lower arc rod are both provided with arc holes, the arc-shaped fastening rod is movably connected to the arc holes, a fixing strip is arranged on the rear side surface of the fixed cover, and the fixing strip is provided with a first mounting hole.

2. The decorative cover for range hood according to claim 1, characterized in that: The telescopic assembly includes a rotating rod, a fixed rod and a threaded rod, the fixed rod is vertically fixedly connected to the top surface of the lower arc rod, the rotating rod is rotatably connected to the bottom surface of the upper arc rod, the bottom end of the rotating rod is fixedly connected to the threaded rod, and the threaded rod is threadedly connected to the fixed rod.

3. The decorative cover for range hood according to claim 1, characterized in that: A clamping groove is arranged on the top surface of the end of the upper arc-shaped rod and the lower arc-shaped rod, and a second positioning hole is arranged in the clamping groove.

4. The decorative cover for range hood according to claim 1, characterized in that: The upper arc rod and the lower arc rod are connected to the second sliding assembly through a first cantilever and a second cantilever respectively, and the inner side surfaces of the upper arc rod and the lower arc rod are arc surfaces.

5. The decorative cover for range hood according to claim 4, characterized in that: The second sliding assembly includes a second slide rail and a slider. The second slide rail is arranged in parallel on the three inner sides of the lifting cover. The second slide rail is provided with a second slide groove. The slider is symmetrically arranged on both sides of the end of the first cantilever and matches the second slide groove. The end of the second cantilever is provided with a first positioning hole. The second cantilever is fixedly connected to the second slide rail by screws passing through the second slide rail and the first positioning hole.

6. The decorative cover for range hood according to claim 1, characterized in that: The first sliding assembly includes a first sliding rail and a roller. The first sliding rail is arranged in parallel on the three inner side surfaces of the fixed cover. The first sliding rail is provided with a first sliding groove. The roller is arranged on the three outer side surfaces of the lifting cover. The roller is limited in the first sliding groove to realize the lifting cover to move up and down along the fixed cover.

7. The decorative cover for a range hood according to claim 1, characterized in that: A fixing block is arranged on the rear side surface of the lifting cover, and a second mounting hole is arranged on the fixing block.

8. The method for manufacturing a decorative cover for a range hood according to any one of claims 1 to 7, characterized in that The following steps are involved: 1) Lifting cover processing a. First, make the corresponding lifting cover according to the design requirements, polish the surface of the lifting cover, install the fixing block symmetrically along the opening side of the lifting cover, and open a second mounting hole on the fixing block; b. Then determine the installation position of the second slide rail along the three inner sides of the lifting cover and mark it; c. Then, process the corresponding second slide rail, open a second slide groove along one side of the second slide block, and install the processed second slide block parallel to the three inner sides of the lifting cover to ensure that the three second slide blocks are at the same height; d. Finally, install the rollers along the three outer sides of the lifting cover so that the three rollers are located in the same horizontal plane; 2) Installation of exhaust pipe support mechanism a. First, the corresponding upper arc rod and lower arc rod are made according to the design requirements, arc holes are opened in the upper arc rod and the lower arc rod along the bending direction, arc surfaces are opened along the inner sides of the upper arc rod and the lower arc rod, and a slot is opened along the top surface of one end of the upper arc rod and the lower arc rod, and a second positioning hole is opened along the bottom of the slot; b. Then, a corresponding arc-shaped fastening rod is processed according to the size of the arc-shaped hole, and one end of the arc-shaped fastening rod is inserted into the arc-shaped hole. A through hole matching the second positioning hole is opened on one side of the arc-shaped fastening rod close to the card slot; c. Then, determine the spacing between the upper arc rod and the lower arc rod according to the length of the second slide groove, and process the corresponding fixed rod, rotating rod and threaded rod. Evenly install the fixed rod on the top surface of the lower arc rod and keep it perpendicular to the lower arc rod. Evenly rotate the rotating rod to connect it to the bottom surface of the upper arc rod and keep it perpendicular to the upper arc rod. Then, fix the threaded rod on the bottom end of the rotating rod, and insert the threaded rod into the fixed rod from top to bottom to achieve the threaded connection between the fixed rod and the threaded rod. d. Finally, select appropriate first cantilever and second cantilever according to the spacing between the upper arc rod, the lower arc rod and the inner side of the lifting cover, distribute the first cantilever at equal intervals on the outer circumference of the upper arc rod, and the first cantilever and the upper arc rod are located in the same horizontal plane, one end of the first cantilever is fixedly connected to the upper arc rod, and sliders are symmetrically installed on both sides of the other end of the first cantilever, and at the same time, distribute the second cantilever at equal intervals on the outer circumference of the lower arc rod, and the second cantilever and the lower arc rod are located in the same horizontal plane, one end of the second cantilever is fixedly connected to the lower arc rod, and the other end of the second cantilever is provided with a first positioning hole. 3) Fixed cover processing a. First, determine the size of the fixed cover according to the size of the lifting cover, and process the corresponding fixed cover, and grind the surface of the fixed cover; b. Then, two mutually parallel fixing strips are installed along the rear side of the fixing cover, and first mounting holes are opened along the fixing strips at equal intervals; c. Then install the seal strips along the bottom of the three sides of the fixed cover; d. Finally, a suitable first slide rail is selected according to the lifting height of the lifting cover, and a first slide groove matching the roller is opened on the first slide rail; 4) Decorative cover assembly a. First, determine the installation height of the range hood exhaust pipe according to the installation height of the range hood, and sleeve the lifting cover on the inner side of the fixed cover through the first sliding component according to the height position of the exhaust pipe, so that the fixed cover and the lifting cover meet the installation requirements; b. Then, according to the position of the smoke exhaust pipe in the lifting cover, the spacing between the upper arc rod and the lower arc rod is adjusted by rotating the rotating rod. The lower arc rod is fixedly connected to the second slide rail through the second cantilever. The upper arc rod moves to the desired position along the second slide rail under the action of the threaded rod and the rotating rod; c. Then, the smoke exhaust pipe is passed through the fixed cover and the lifting cover from bottom to top in sequence. The part of the smoke exhaust pipe located in the lifting cover is fixed by the smoke exhaust pipe support mechanism. When fixing, the upper and lower arc-shaped fastening rods are pulled out from the upper arc-shaped rod and the lower arc-shaped rod respectively, and the other ends are inserted, and the screws are passed through the second positioning holes in the card slot to realize the fixed connection between the arc-shaped fastening rod and the upper arc-shaped rod and the lower arc-shaped rod; d. Finally, hang the lifting cover and fixed cover on the preset hooks on the wall.

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