Double-cabin noise reduction device

Abstract

The utility model discloses a double-cabin noise reduction device which comprises a shell, a top cover and a partition plate assembly arranged in the shell, the partition plate assembly is matched with the top of a pot cover to form a first noise reduction cabin, and a second noise reduction cabin which is located above the first noise reduction cabin and communicated with the first noise reduction cabin is further arranged in the shell. The top cover is arranged at the top of the shell, an assembly gap is formed between the top cover and the shell, and the assembly gap communicates with the second noise reduction cabin to form an exhaust gap, so that airflow sequentially flows through the first noise reduction cabin and the second noise reduction cabin to be exhausted from the exhaust gap. According to the noise reduction device, the top cover of the noise reduction device is arranged at the top of the shell, and the exhaust gap is formed between the top cover and the shell through assembly, so that airflow in the noise reduction device is exhausted through the exhaust gap. Therefore, a hole does not need to be formed in the top cover or the shell of the noise reduction device, the hidden design of the exhaust port is achieved, the exhaust efficiency is guaranteed, a user cannot see the internal structure of the noise reduction device from the outer side, and the appearance quality of the cooking utensil is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooking utensils, and in particular relates to a double-cabin noise reduction device. Background Art

[0002] In some cooking appliances, such as electric rice cookers, especially electric pressure cookers, a noise reduction box is provided at the exhaust valve of the pot lid. The noise reduction box cover is arranged on the outside of the exhaust valve (such as a heavy hammer), which can not only cover the exhaust valve and improve the overall appearance of the cooking appliance, but also can reduce the noise of the gas ejected from the exhaust valve and reduce the noise generated during the exhaust process.

[0003] A noise reduction chamber is provided inside the noise reduction box for reducing the noise of the airflow. In order to further lengthen the flow path of the airflow, weaken the kinetic energy of the airflow during the flow, and reduce the noise, some noise reduction boxes are provided with two upper and lower noise reduction chambers.

[0004] However, the lengthening of the airflow path also reduces the airflow exhaust efficiency. Usually, the airflow inside the noise reduction box is discharged by opening a large area or a large number of holes on the surface of the noise reduction box, such as opening an exhaust port on the top or side of the noise reduction box for air discharge.

[0005] The method of opening holes on the surface of the noise reduction box not only allows users to directly see the internal structure of the noise reduction box through the holes, affecting the overall appearance and visual experience of the cooking appliance. In addition, dust and impurities from the outside will also enter the noise reduction box through the holes, causing the inside of the noise reduction box to be polluted, increasing the cleaning burden of the user and affecting the noise reduction effect. At the same time, the densely arranged multiple holes not only have low exhaust efficiency, but also further generate noise when the gas passes through. Utility Model Content

[0006] The utility model provides a double-chamber noise reduction device, which solves the problem that the exhaust port of the noise reduction device leaks, causing the appearance quality of the cooking appliance to decrease and the interior of the noise reduction device to be easily contaminated, while ensuring the noise reduction effect and exhaust efficiency of the noise reduction box.

[0007] The technical solution adopted by the utility model is:

[0008] A double-chamber noise reduction device comprises a shell, a top cover, and a baffle assembly disposed inside the shell, wherein the baffle assembly cooperates with the top of a pot cover to form a first noise reduction chamber, and the shell also comprises a second noise reduction chamber located above the first noise reduction chamber and connected to the first noise reduction chamber; the top cover is disposed on the top of the shell and has an assembly gap with the shell, and the assembly gap is connected with the second noise reduction chamber to form an exhaust gap, so that airflow flows through the first noise reduction chamber and the second noise reduction chamber in sequence and is discharged from the exhaust gap.

[0009] The double-cabin noise reduction device of the utility model also has the following additional technical features:

[0010] A guide rib extending obliquely upward is arranged inside the shell body, and the guide rib has a flow guiding inclined surface, and the flow guiding inclined surface cooperates with the edge of the top cover to form an exhaust gap.

[0011] A relief notch is arranged on one side of the top cover away from the operating handle of the pot cover, and the relief notch cooperates with the shell body to form an exhaust gap.

[0012] The inner wall of the shell is provided with a fixing part, the partition assembly is provided with an elastic rib, the elastic rib has a clamping part, and the elastic rib can be elastically deformed to make the clamping part engage with or loosen the fixing part.

[0013] The elastic rib has a fixed section fixed to the partition assembly, and a free section, and the free section can swing around the fixed section to deform the elastic rib.

[0014] An elastic member is arranged between the elastic rib position and the partition assembly, and the elastic member is used to apply a force to the elastic rib position to keep the clamping part and the fixing part in clamping fit.

[0015] The partition assembly includes a first partition and a second partition located above the first partition. The second partition cooperates with the pot cover to form a first noise reduction chamber. A second noise reduction chamber is formed between the first partition and the second partition. The first partition and the second partition are fixedly connected.

[0016] One of the first partition plate and the second partition plate is provided with a positioning column, and the other corresponding positioning column is provided with a positioning hole, so that the first partition plate and the second partition plate can be inserted and positioned.

[0017] The first partition is provided with a first air inlet, and the second partition is provided with a second air inlet, and the second air inlet is staggered with the first air inlet.

[0018] The first noise reduction chamber is used to accommodate a heavy hammer, and a noise reduction cavity recessed toward the second noise reduction chamber is arranged at the air outlet of the top of the heavy hammer corresponding to the partition assembly.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. The noise reduction device of the utility model is provided with a first noise reduction cabin and a second noise reduction cabin. The airflow passes through the two noise reduction cabins in sequence for noise reduction. The airflow makes multiple turns in the two noise reduction cabins, which lengthens the flow path of the airflow and also attenuates the kinetic energy of the airflow, thereby alleviating the whistling sound generated during the high-speed flow of the airflow and improving the noise reduction effect.

[0021] In the utility model, the top cover of the noise reduction device is arranged on the top of the shell, and an exhaust gap is formed between the top cover and the shell by assembly, so that the airflow in the noise reduction device is discharged through the exhaust gap. Therefore, there is no need to open a hole on the top cover or the shell of the noise reduction device, and the hidden design of the exhaust port is realized, which not only ensures the exhaust efficiency, but also makes it impossible for the user to see the internal structure of the noise reduction device from the outside, improves the appearance quality of the cooking utensil, and improves the appearance. In addition, it can also prevent foreign dust and other impurities from entering the interior of the noise reduction device, ensure internal cleanliness, and reduce the cleaning burden of the user. Not only that, the exhaust gap can also be directed to a specific direction (for example, vertically upward, inclined upward or horizontally) by structural design of the top cover and / or the shell, so as to meet different exhaust requirements. In addition, exhausting through the exhaust gap can further reduce the noise emitted when the airflow passes while ensuring the exhaust volume and exhaust efficiency.

[0022] 2. As a preferred embodiment of the utility model, a guide rib extending upwardly in an inclined manner is arranged inside the shell, and the guide rib has a flow guiding slope, and the flow guiding slope cooperates with the edge of the top cover to form an exhaust gap. The airflow is guided by the flow guiding slope in the exhaust gap and ejected from the noise reduction device at an inclined angle, which can prevent the exhaust from being vertically upward, and the high-temperature airflow from affecting the table top or other components above the cooking utensil.

[0023] 3. As a preferred embodiment of the utility model, a relief notch is provided on the side of the top cover away from the operating handle of the pot lid, and the relief notch cooperates with the shell to form an exhaust gap. The outlet direction of the exhaust gap is away from the side operated by the user, so that the high-temperature gas is ejected from the side away from the user, so that the user can get a better touch when operating, avoid the ejected high-temperature airflow from affecting the user's operation, and improve the user experience.

[0024] 4. As a preferred embodiment of the present invention, the inner wall of the shell is provided with a fixing part, the partition assembly is provided with an elastic rib, the elastic rib has a clamping part, and the elastic rib can be elastically deformed to make the clamping part engage or loosen with the fixing part. The partition assembly and the shell are detachably connected by clamping, so that the user can install and remove the partition assembly to clean the inside of the noise reduction device more conveniently and quickly, and the user's learning cost is lower.

[0025] 5. As a preferred embodiment of the present invention, an elastic member is provided between the elastic rib and the partition assembly, and the elastic member is used to apply a force to the elastic rib to keep the clamping part and the fixing part in a clamping fit. The elastic member can apply a thrust to the elastic rib to keep the clamping part in a clamping fit with the fixing part, prevent the clamping part and the fixing part from loosening, and maintain the stable installation of the partition assembly. At the same time, when the user presses the elastic rib, the elastic member is squeezed and can give the user force feedback, which can not only improve the user's operating feel, but also prevent the elastic rib from being excessively deformed and broken or damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 This is a schematic structural diagram of a housing in one embodiment of the utility model;

[0028] Figure 2 A cross-sectional view of a noise reduction device according to an embodiment of the present utility model;

[0029] Figure 3 is a cross-sectional view of a noise reduction device in another embodiment of the present invention, wherein arrows indicate airflow paths;

[0030] Figure 4 This is a structural explosion view of a noise reduction device in one embodiment of the utility model;

[0031] Figure 5 A cross-sectional view of a housing in one embodiment of the utility model;

[0032] Figure 6 This is a schematic structural diagram of a first partition in one embodiment of the utility model;

[0033] Figure 7 This is a schematic structural diagram of a second partition in one embodiment of the utility model;

[0034] Figure 8 This is a schematic diagram of the structure of the top cover in one embodiment of the utility model;

[0035] Fig. 9 This is a schematic structural diagram of a first partition in another embodiment of the present invention.

[0036] in:

[0037] 1 housing; 11 fixing part; 12 first noise reduction chamber; 13 second noise reduction chamber; 14 plug-in protrusion; 141 notch; 15 foolproof protrusion; 16 gripping groove; 17 damping hole; 18 guide rib;

[0038] 2 top cover; 21 exhaust gap; 22 avoidance gap; 23 welding rib position;

[0039] 3 baffle assembly; 31 first baffle; 311 convex bump; 312 limiting hole; 313 matching convex rib; 32 second baffle; 321 positioning column; 33 elastic rib position; 331 clamping part; 332 free section; 333 fixed section; 34 noise reduction cavity; 35 first air outlet; 36 second air outlet;

[0040] 4 elastic parts. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0043] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0046] like Figure 1 , Figure 3 , Figure 4 As shown, a double-chamber noise reduction device includes a shell body 1, a top cover 2, and a partition assembly 3 disposed inside the shell body 1, wherein the partition assembly 3 cooperates with the top of the pot cover to form a first noise reduction chamber 12, and the shell body 1 also has a second noise reduction chamber 13 located above the first noise reduction chamber 12 and connected to the first noise reduction chamber 12; the top cover 2 is arranged on the top of the shell body 1 and has an assembly gap with the shell body 1, and the assembly gap is connected with the second noise reduction chamber 13 to form an exhaust gap 21, so that the airflow flows through the first noise reduction chamber 12 and the second noise reduction chamber 13 in sequence and is discharged from the exhaust gap 21.

[0047] The noise reduction device of the utility model is provided with a first noise reduction cabin 12 and a second noise reduction cabin 13. The airflow passes through the two noise reduction cabins in sequence for noise reduction. The airflow makes multiple turns in the two noise reduction cabins, which lengthens the flow path of the airflow and also attenuates the kinetic energy of the airflow, thereby alleviating the whistling sound generated during the high-speed flow of the airflow and improving the noise reduction effect.

[0048] In the utility model, the top cover 2 of the noise reduction device is arranged on the top of the shell 1, and an exhaust gap 21 is formed between the top cover 2 and the shell 1 by assembly, so that the airflow in the noise reduction device is discharged through the exhaust gap 21. Therefore, there is no need to open a hole on the top cover 2 or the shell 1 of the noise reduction device, and the hidden design of the exhaust port is realized, which not only ensures the exhaust efficiency, but also makes it impossible for the user to see the internal structure of the noise reduction device from the outside, improves the appearance quality of the cooking utensil, and improves the appearance. In addition, it can also prevent foreign dust and other impurities from entering the interior of the noise reduction device, ensure internal cleanliness, and reduce the cleaning burden of the user. Not only that, the exhaust gap 21 can also be directed to a specific direction (for example, vertically upward, tilted upward or horizontally) by structural design of the top cover 2 and / or the shell 1, so as to meet different exhaust requirements. In addition, exhausting through the exhaust gap 21, while ensuring the exhaust volume and exhaust efficiency, also further reduces the noise emitted when the airflow passes.

[0049] At the same time, the shell 1 and the top cover 2 have fewer structural features and can be injection molded with spray-free materials, thereby obtaining a better appearance effect.

[0050] As a preferred embodiment of the present utility model, a guide rib 18 extending obliquely upward is provided inside the housing 1 , and the guide rib 18 has a guide slope, and the guide slope cooperates with the edge of the top cover 2 to form an exhaust gap 21 .

[0051] The airflow is guided by the guide slope in the exhaust gap 21 and ejected from the noise reduction device at an inclined angle, which can prevent the exhaust from being discharged vertically upward and the high-temperature airflow from affecting the table top or other components above the cooking appliance.

[0052] Preferably, if Figure 4 , Figure 8 As shown, a side of the top cover 2 facing away from the operating handle of the pot cover is provided with an escape notch 22 , and the escape notch 22 cooperates with the shell 1 to form an exhaust gap 21 .

[0053] The outlet direction of the exhaust gap 21 is away from the side where the user operates, so that the high-temperature gas is ejected from the side away from the user, so that the user can get a better touch when operating, avoid the ejected high-temperature airflow from affecting the user operation, and improve the user experience.

[0054] Preferably, the partition assembly 3 is detachably connected to the shell 1, so that the user can remove the partition assembly 3 from the shell 1 and clean the inside of the noise reduction device.

[0055] However, the present invention does not limit the assembly method of the top cover 2 and the shell 1. In one embodiment, the top cover 2 and the shell 1 are inseparably connected, for example, the top cover 2 and the shell 1 are integrally formed, or the top cover 2 and the shell 1 are separately formed and fixedly connected by welding or the like.

[0056] Specifically, Figure 8 As shown, the edge of the top cover 2 is provided with welding ribs 23, and the shell 1 is provided with a welding surface, so that the top cover 2 and the shell 1 are fixed as a whole through ultrasonic welding.

[0057] In another embodiment, the top cover 2 is detachably connected to the shell 1, for example, by means of screws, buckles, threaded connections, etc., to achieve a fixed connection between the two.

[0058] Preferably, the top cover 2 and the shell 1 are separate structures, so that the top cover 2 and the shell 1 can be made of different materials and can be made of different colors, so as to further improve the appearance quality of the cooking utensil.

[0059] In addition, the present invention does not limit the structure of the housing 1. In one embodiment, the housing 1 includes at least two housings, and the housings are assembled to form a complete housing 1. In another embodiment, the housing 1 is a complete, non-detachable housing to reduce the number of components of the noise reduction device as a whole. When the user disassembles the noise reduction assembly, the number of components is small, so the installation position and installation order of each component are more intuitive and clear, which is more convenient for users to assemble and improve the user experience.

[0060] In a preferred embodiment, Figure 2 , Figure 5 , Figure 6 As shown, the inner wall of the shell 1 is provided with a fixing portion 11, and the partition assembly 3 is provided with an elastic rib 33, the elastic rib 33 has a clamping portion 331, and the elastic rib 33 can be elastically deformed to make the clamping portion 331 engage with or loosen the fixing portion 11.

[0061] The partition assembly 3 and the shell 1 are detachably connected by snapping, so that the user can install and remove the partition assembly 3 to clean the inside of the noise reduction device more conveniently and quickly, and the user's learning cost is lower.

[0062] Furthermore, if Figure 6 As shown, the elastic rib 33 has a fixed section 333 fixed to the partition assembly 3 and a free section 332 . The free section 332 can swing around the fixed section 333 to deform the elastic rib 33 .

[0063] When the user disassembles the partition assembly 3, the elastic rib 33 is deformed by squeezing the free section 332, and the free section 332 swings around the fixed section 333. The clamping portion 331 is arranged on the free section 332, and thus moves along with the free section 332, and then loosens from the fixed portion 11. After the user stops squeezing, the elastic rib 33 causes the free section 332 to rebound and reset under the action of its own elastic force.

[0064] Preferably, if Figure 2 As shown, the free section 332 extends into the second noise reduction chamber 13 or the first noise reduction chamber 12, and there is an operating space between the free section 332 and the inner wall of the housing 1, so that the user can insert his finger into the housing 1 to squeeze the free section 332. The operating space provides a space for the user's finger, making it easier for the user to squeeze the free section 332.

[0065] Specifically, Figure 2 , Figure 6As shown, the elastic ribs 33 are arranged at both ends of the partition assembly 3, so that the user can squeeze the free section 332 inward at the same time to make the elastic ribs 33 at both ends deform inward at the same time. After the partition assembly 3 is assembled, the clamping parts 331 at both ends are clamped and matched with the fixing part 11, so that the installation of the partition assembly 3 is more stable, and the partition assembly 3 is prevented from tilting due to uneven force at both ends.

[0066] Furthermore, if Figure 2 , Figure 4 As shown, an elastic member 4 is provided between the elastic rib 33 and the partition assembly 3 , and the elastic member 4 is used to apply a force to the elastic rib 33 to keep the clamping portion 331 and the fixing portion 11 in clamping engagement.

[0067] The elastic member 4 can apply a thrust to the elastic rib 33, so that the clamping portion 331 maintains the clamping fit with the fixing portion 11, prevents the clamping portion 331 and the fixing portion 11 from being loosened, and maintains the stable installation of the partition assembly 3. At the same time, when the user presses the elastic rib 33, the elastic member 4 is squeezed, which can give the user force feedback, which can not only improve the user's operating feel, but also prevent the elastic rib 33 from being excessively deformed and broken or damaged.

[0068] The utility model does not limit the assembly method of the elastic member 4. In one embodiment, the elastic member 4 is fixed to the elastic rib position 33 and / or the partition assembly 3, so that the elastic member 4 is always kept between the two. In another embodiment, the elastic member 4 is an independent component relative to the partition assembly 3 and the elastic rib position 33. When the user installs the partition assembly 3, the elastic member 4 is first removed, the clamping portion 331 is clamped and matched with the fixing portion 11, and then the elastic member 4 is installed or inserted into the space between the elastic rib position 33 and the partition assembly 3 to complete the installation of the elastic member 4.

[0069] It should be noted that the elastic member 4 can be any elastic structure, such as a silicone block, a rubber block, a spring, etc., which is not limited here.

[0070] As a preferred embodiment of the present invention, Figure 2 As shown, the partition assembly 3 includes a first partition 31 and a second partition 32 located above the first partition 31, the second partition 32 cooperates with the pot cover to form a first noise reduction chamber 12, a second noise reduction chamber 13 is formed between the first partition 31 and the second partition 32, and the first partition 31 and the second partition 32 are fixedly connected.

[0071] The space inside the shell 1 is divided into two chambers by the first partition 31 and the second partition 32. At the same time, the first partition 31 and the second partition 32 can be fixed as a whole, so that the first partition 31 and the second partition 32 can be installed as a whole to the shell 1, or removed from the shell 1.

[0072] Furthermore, if Figure 6 , Figure 7 As shown, one of the first partition plate 31 and the second partition plate 32 is provided with a positioning column 321, and the other corresponding positioning column 321 is provided with a positioning hole, so that the first partition plate 31 and the second partition plate 32 are inserted and positioned. The positioning column 321 and the positioning hole cooperate to position the first partition plate 31 and the second partition plate 32, reduce the difficulty of assembling the two, and improve the assembly efficiency.

[0073] Specifically, there are at least two groups of positioning columns 321, each group includes at least two positioning columns 321, and each group of positioning columns 321 is asymmetrically arranged on the first partition 31 or the second partition 32, and the positioning holes are arranged corresponding to the positions of the positioning columns 321 to play an anti-mistake effect during assembly and positioning, ensuring that the first partition 31 and the second partition 32 have a unique installation direction, thereby improving assembly efficiency.

[0074] Specifically, Figure 6 , Figure 7 As shown, the positioning column 321 is arranged on the first partition plate 31, and the positioning hole is arranged on the second partition plate 32. Of course, the positioning column 321 can also be arranged on the second partition plate 32, and the positioning hole can be arranged on the first partition plate 31, which is not limited here.

[0075] Preferably, if Figure 3 , Figure 6 , Figure 7 As shown, the first partition plate 31 is provided with a first air port 35 , and the second partition plate 32 is provided with a second air port 36 . The second air port 36 is arranged in a staggered manner with respect to the first air port 35 .

[0076] By designing the interior of the noise reduction device as a double-cabin structure, the path of the airflow discharge in the noise reduction device is lengthened, the kinetic energy and flow velocity of the airflow are further reduced, and the noise reduction effect is improved. In addition, the first air outlet 35 and the second air outlet 36 are staggered, so that the airflow will turn and collide multiple times during the discharge process, thereby greatly attenuating the kinetic energy and flow velocity of the airflow and reducing the whistling sound generated during the flow of the airflow.

[0077] Specifically, as shown, the first air port 35 is disposed at the edge region of the second partition plate 32, and the second air port 36 is disposed at the center region of the second partition plate 32, so that the first air port 35 is located at the edge of the internal chamber of the noise reduction device, and the second air port 36 is located at the center of the internal chamber of the noise reduction device. The airflow first enters the first noise reduction chamber 12, flows upward from the edge of the first noise reduction chamber 12 to the second noise reduction chamber 13 through the first air port 35, and then flows out from the center region of the second noise reduction chamber 13 through the second air port 36 to the exhaust gap 21.

[0078] In a preferred embodiment, Figure 2 , Figure 3As shown, the first noise reduction chamber 12 is used to accommodate a heavy hammer, and a noise reduction cavity 34 recessed toward the second noise reduction chamber 13 is provided at the air outlet of the top of the heavy hammer corresponding to the partition assembly 3.

[0079] The position of the air outlet on the top of the weight is provided with an upwardly recessed noise reduction cavity 34, so that the airflow ejected from the weight outlet will flow more upward into the noise reduction cavity 34. The noise reduction cavity 34 is recessed upward, so it can not only buffer the airflow to a certain extent and reduce the kinetic energy of the airflow, but also the noise reduction cavity 34 has an opening for airflow to enter only at the position corresponding to the weight at the bottom, and other areas are closed. Therefore, the airflow cannot be directly ejected upward from the noise reduction cavity 34, but after being buffered in the noise reduction cavity 34, it turns back and flows downward, and then disperses and flows back to the first noise reduction cabin 12 from the opening below the noise reduction cavity 34, so that the converged airflow is dispersed, and the converged airflow at the noise reduction cavity 34 is divided into multiple smaller airflows that flow outward.

[0080] By providing the noise reduction cavity 34, the airflow ejected from the air outlet on the top of the weight can not only be buffered in the noise reduction cavity 34 and change its flow direction, thereby extending the flow path of the airflow, but also the airflow can be dispersed into multiple small-flow airflows when flowing out of the noise reduction cavity 34, thereby greatly reducing the noise generated during the flow of the airflow and improving the noise reduction effect and user experience.

[0081] In a preferred embodiment, Figure 6 As shown, the partition assembly 3 is provided with an upwardly raised convex bump 311, and the convex bump 311 surrounds a noise reduction cavity 34. In this embodiment, the noise reduction cavity 34 is a cavity of a larger volume, which has a better buffering effect on the airflow. At the same time, when the airflow flows out from the opening toward the noise reduction cavity 34 to the first noise reduction cabin 12, it can be naturally diverted due to the larger space of the first noise reduction cabin 12.

[0082] In another embodiment, if Fig. 9 As shown, a plurality of matching ribs 313 are provided on the side of the partition assembly 3 facing the pot cover, and the matching ribs 313 surround a plurality of noise reduction cavities 34, and each noise reduction cavities 34 is arranged in an array.

[0083] The multiple noise reduction cavities 34 arranged in an array can divert the airflow through their own structural characteristics. The airflow ejected from the air outlet on the top of the hammer is divided into multiple streams under the diversion effect of the rib 313 and enters the multiple noise reduction cavities 34 respectively, is buffered in each noise reduction cavity 34, and flows out from each noise reduction cavity 34.

[0084] Specifically, Fig. 9 As shown, each noise reduction cavity 34 is arranged in a honeycomb shape. Of course, the noise reduction cavity 34 can also be arranged in an array in other ways, which is not limited here.

[0085] As a preferred embodiment, Figure 1 As shown, the bottom of the shell 1 is provided with an insertion protrusion 14 for plugging and fixing with the pot cover, the noise reduction device extends in a long strip shape in the horizontal plane, and a gripping groove 16 is provided in at least a part of the periphery of the noise reduction device.

[0086] Furthermore, if Figure 3 , Figure 5 , Fig. 9 As shown, the plug-in protrusion 14 has a notch 141 in the circumference thereof, which is used to communicate with the float on the pot cover. When pressed upward, the airflow discharged from the float enters the noise reduction device through the plug-in protrusion 14.

[0087] The connection between the noise reduction device and the pot cover is achieved by plugging, which makes the assembly and disassembly of the noise reduction device simpler and more convenient, and the user's operation is faster. Specifically, the plug-in protrusion 14 is arranged on one side of the noise reduction device, and the other side is provided with an anti-fool protrusion 15 that cooperates with the pot cover to limit the installation direction of the noise reduction device. At the same time, the noise reduction device extends into a long strip shape, which not only improves the overall appearance, but also enables the user to get a better feel when holding it. The gripping groove 16 makes it more convenient for the user to hold and operate, reduces the probability of the noise reduction device and the user's hand slipping off, and improves the user experience.

[0088] Furthermore, if Figure 1 As shown, the outer wall of the shell 1 is provided with a damping hole 17 for cooperating with the damping on the pot cover, so that the user has a good feel when installing or removing the noise reduction device.

[0089] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0090] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0091] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A double-cabin noise reduction device, comprising a shell, a top cover, and a partition assembly disposed inside the shell, characterized in that: The partition assembly cooperates with the top of the pot cover to form a first noise reduction chamber, and the shell also has a second noise reduction chamber located above the first noise reduction chamber and connected to the first noise reduction chamber; the top cover is arranged on the top of the shell and has an assembly gap with the shell, and the assembly gap is connected with the second noise reduction chamber to form an exhaust gap, so that the airflow flows through the first noise reduction chamber and the second noise reduction chamber in sequence and is discharged from the exhaust gap.

2. The double-cabin noise reduction device according to claim 1, characterized in that: A guide rib extending obliquely upward is arranged inside the shell, and the guide rib has a flow guiding slope, and the flow guiding slope cooperates with the edge of the top cover to form the exhaust gap.

3. The double-cabin noise reduction device according to claim 1 or 2, characterized in that: A side of the top cover facing away from the operating handle of the pot cover is provided with an escape notch, and the escape notch cooperates with the shell to form the exhaust gap.

4. The double-cabin noise reduction device according to claim 1, characterized in that: The inner wall of the shell is provided with a fixing portion, and the partition assembly is provided with an elastic rib, the elastic rib has a clamping portion, and the elastic rib can be elastically deformed to make the clamping portion engage with or loosen the fixing portion.

5. The double-cabin noise reduction device according to claim 4, characterized in that: The elastic rib has a fixed section fixed to the partition assembly, and a free section, and the free section can swing around the fixed section to deform the elastic rib.

6. The double-cabin noise reduction device according to claim 4, characterized in that: An elastic member is provided between the elastic rib and the partition assembly, and the elastic member is used to apply a force to the elastic rib to keep the clamping portion and the fixing portion in a clamping fit.

7. The double-cabin noise reduction device according to claim 1, characterized in that: The partition assembly includes a first partition and a second partition located above the first partition, the second partition cooperates with the pot cover to form the first noise reduction chamber, the second noise reduction chamber is formed between the first partition and the second partition, and the first partition and the second partition are fixedly connected.

8. The double-cabin noise reduction device according to claim 7, characterized in that: One of the first partition plate and the second partition plate is provided with a positioning column, and the other of the two is provided with a positioning hole corresponding to the positioning column, so that the first partition plate and the second partition plate can be inserted and positioned.

9. The double-cabin noise reduction device according to claim 7, characterized in that: The first partition plate is provided with a first air inlet, and the second partition plate is provided with a second air inlet, and the second air inlet is arranged in a staggered manner with the first air inlet.

10. The double-cabin noise reduction device according to claim 1, characterized in that: The first noise reduction chamber is used to accommodate a heavy hammer, and the partition assembly is provided with a noise reduction cavity recessed toward the second noise reduction chamber at the air outlet on the top of the heavy hammer.

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