Gravity powder distribution structure and highly adaptive gravity powder distributor

By introducing bearing components and guiding and limiting structures into the gravity powder distributor, the problems of high friction and misalignment in the existing technology are solved, enabling more labor-saving and convenient coffee powder dispersion and distribution, improving ease of use and powder distribution effect.

CN224320526UActive Publication Date: 2026-06-05HUIZHOU GUANGYI KITCHEN INTELLIGENT PRODUCTS TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU GUANGYI KITCHEN INTELLIGENT PRODUCTS TECHNOLOGY CO LTD
Filing Date
2025-06-13
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing gravity-type powder distributors suffer from excessive friction during rotation and are prone to misalignment, resulting in inconvenience and poor powder distribution.

Method used

The system employs a gravity-feeding structure, which reduces friction between the gravity-feeding paddle and the outer support through a bearing assembly. The guide limiting hole and annular guide flange ensure accurate positioning of the outer support, enabling the coffee powder to be dispersed and evenly distributed without rotating the outer support.

Benefits of technology

It improves ease of use and powder distribution, reduces friction during rotation, avoids unevenness caused by misalignment of the outer support, and enhances the labor-saving convenience and powder distribution effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure provides a gravity powder distribution structure and a highly adaptive gravity powder distributor. The gravity powder distribution structure comprises a powder top cover, a gravity powder paddle assembly and a support assembly. The connecting end of the gravity powder paddle assembly is connected with the bottom end of the powder top cover. The support assembly is formed with a guide limiting hole. The connecting end of the gravity powder paddle assembly is arranged in the guide limiting hole and is in sliding abutment with the inner wall of the guide limiting hole. The powder end of the gravity powder paddle assembly is arranged below the support assembly. The support assembly comprises an outer support and a bearing assembly. The outer support is provided with a mounting hole. The outer peripheral wall of the bearing assembly is fixedly connected with the hole wall of the mounting hole. The guide limiting hole is formed in the bearing assembly. The connecting end of the gravity powder paddle assembly is in sliding limiting connection with the bearing assembly. The gravity powder distribution structure has good convenience and good powder distribution effect.
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Description

Technical Field

[0001] This disclosure relates to the technical field of height-adaptive gravity dust collectors, and in particular to a gravity dust collection structure and a height-adaptive gravity dust collector. Background Technology

[0002] Coffee distributors play a crucial role in espresso preparation, primarily functioning to disperse and distribute coffee grounds. In most related technologies, a coffee distributor typically consists of a lid, a support, and a distributor paddle. The paddle passes through the support and connects to the lid. To disperse and distribute the coffee grounds in the portafilter, the support is first positioned at the rim of the portafilter. Then, the lid is pressed down, causing the paddle to descend relative to the support towards the bottom of the portafilter, evenly distributing the coffee grounds. Finally, the lid is rotated, causing the paddle to rotate and further disperse and distribute the coffee grounds, thus improving extraction. However, most coffee distributors rely on the user pressing the lid by hand. Mastering the pressure required for pressing the lid is crucial, demanding skill and practice, thus reducing ease of use. To address these issues, some related technologies have undergone further research and development.

[0003] Existing technology, such as patent CN217852448U, discloses a gravity-type coffee grounds dispenser, which includes a main body comprising an upper cover, a middle cover, and a base plate. The middle cover is connected to the upper cover, and a sliding rod passes through the middle cover and connects to the base plate. The base plate retracts into a receiving cavity at the bottom of the middle cover. When the main body is lifted, the base plate slowly slides out of the receiving cavity due to gravity and internal air pressure difference. This dispenser utilizes gravity to allow the base plate to descend slowly, automatically adapting to the coffee grounds level and rotating to evenly distribute the coffee grounds. Simultaneously, the weight of the base plate is controlled within a preset range, allowing the dispenser to evenly distribute the coffee grounds in the portafilter without requiring precise application of force, greatly improving the ease of use of this gravity-type dispenser.

[0004] However, because the middle cover of the aforementioned gravity-type coffee distributor abuts against the coffee bowl, the middle cover rotates relative to the coffee bowl when the distributor is rotated. This results in excessive friction between the distributor and the coffee bowl, making it more difficult to rotate the gravity-type coffee distributor and greatly reducing its ease of use. At the same time, when the user rotates the gravity-type coffee distributor, it is prone to misalignment, leading to uneven coffee powder distribution and significantly reducing its distribution effect. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a gravity powder distribution structure and a height-adaptive gravity powder distributor that not only has better ease of use but also better powder distribution effect.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A gravity powder distribution structure, comprising:

[0008] Powder top cover;

[0009] Gravity powder dispensing slurry assembly, wherein the connecting end of the gravity powder dispensing slurry assembly is connected to the bottom end of the powder dispensing top cover;

[0010] A support assembly having a guide limiting hole, the connecting end of the gravity powder dispensing slurry assembly passing through the guide limiting hole and slidingly abutting against the inner wall of the guide limiting hole, and the powder dispensing end of the gravity powder dispensing slurry assembly being located below the support assembly.

[0011] The support assembly includes an outer support and a bearing assembly. The outer support has a mounting hole. The outer peripheral wall of the bearing assembly is fixedly connected to the wall of the mounting hole. The guide limiting hole is formed in the bearing assembly. The connecting end of the gravity powder spreading slurry assembly is slidably limited to the bearing assembly.

[0012] In one embodiment, the powder cover has a first annular guide limiting groove, and the top of the outer bracket has a first annular guide flange protruding along the outer periphery of the guide limiting hole. The first annular guide limiting groove and the first annular guide flange are disposed opposite to each other, and the inner wall of the first annular guide limiting groove slides against the outer periphery of the first annular guide flange.

[0013] In one embodiment, the gravity powder dispensing paddle assembly includes a gravity powder dispensing paddle and a connecting rod. The first end of the connecting rod is connected to the top end of the gravity powder dispensing paddle, and the second end of the connecting rod is connected to the bottom end of the powder dispensing top cover. The connecting rod passes through the guide limiting hole and is slidably limited to the bearing assembly.

[0014] In one embodiment, the bearing assembly includes a bearing and an inner support. The outer peripheral wall of the bearing is fixedly connected to the wall of the mounting hole, and the inner peripheral wall of the bearing is fixedly connected to the outer peripheral wall of the inner support, so that the inner support is rotatably connected to the outer support. The guide limiting hole is formed in the inner support, and the inner peripheral wall of the inner support is slidably limited to the outer peripheral wall of the connecting rod.

[0015] In one embodiment, both the guide limiting hole and the connecting rod have rhomboid cross-sections, and the outer peripheral wall of the connecting rod is correspondingly provided with the guide limiting hole.

[0016] In one embodiment, the gravity powder dispensing slurry has a first threaded hole, the first end of the connecting rod has a first threaded abutment surface, and the first end of the connecting rod is disposed in the first threaded hole and screwed to the gravity powder dispensing slurry.

[0017] In one embodiment, the bottom end of the powder cover has a second threaded hole, the second end of the connecting rod has a second threaded abutment surface, and the second end of the connecting rod is disposed in the second threaded hole and screwed to the powder cover.

[0018] In one embodiment, the top end of the gravity powder slurry is provided with a second annular guide flange, and the bottom end of the outer support is also formed with a second annular guide limiting groove corresponding to the second annular guide flange. The second annular guide flange slides against the inner wall of the second annular guide limiting groove.

[0019] In one embodiment, the outer peripheral wall of the powder cover is formed with a friction surface.

[0020] In one embodiment, the bottom end of the gravity powder-dispensing slurry has a paddle-shaped structure.

[0021] A height-adaptive powder distributor includes the gravity powder distribution structure described in any of the above embodiments.

[0022] Compared with the prior art, this disclosure has at least the following advantages:

[0023] 1. In the aforementioned gravity powder distribution structure, the connecting end of the gravity powder distribution paddle assembly is connected to the bottom end of the powder distribution top cover. The support assembly has a guide and limiting hole. The connecting end of the gravity powder distribution paddle assembly passes through the guide and limiting hole and slides against the inner wall of the guide and limiting hole. The powder distribution end of the gravity powder distribution paddle assembly is located below the support assembly. The outer support has a mounting hole. The outer peripheral wall of the bearing assembly is fixedly connected to the hole wall of the mounting hole. The guide and limiting hole is formed in the bearing assembly. The connecting end of the gravity powder distribution paddle assembly is slidably limited to the bearing assembly, so that when the user rotates the powder distribution top cover, the gravity powder distribution paddle assembly can move the powder distribution paddle. When the powder dispenser assembly rotates relative to the outer support, the gravity powder dispenser structure of this disclosure can reduce the friction between the gravity powder dispenser assembly and the outer support through the bearing assembly, making it smoother and faster for the user to rotate the powder dispenser top cover relative to the outer support. Compared with the gravity powder dispenser in the above-mentioned related technologies, which requires rotating the entire powder dispenser relative to the portafilter, the height-adaptive gravity powder dispenser of this disclosure is more labor-saving and convenient in the process of dispersing and leveling the coffee powder in the portafilter, thereby greatly improving the ease of use of the height-adaptive gravity powder dispenser of this disclosure.

[0024] 2. Compared to the gravity-type powder dispenser in the aforementioned related technologies, which requires rotating the entire powder dispenser relative to the portafilter, the gravity powder dispenser structure disclosed herein can disperse and even out the coffee powder in the portafilter without rotating the outer support. This allows the user to securely fix the outer support in a preset position by hand and rotate the powder dispenser cover, avoiding the problem of poor evenness of the coffee powder distribution in the portafilter due to misalignment of the outer support when rotating the powder dispenser cover. This greatly improves the powder distribution effect of the height-adaptive gravity powder dispenser disclosed herein. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a gravity powder distribution structure according to one embodiment;

[0027] Figure 2 for Figure 1 A schematic cross-sectional view of section AA of the gravity powder distribution structure shown;

[0028] Figure 3 for Figure 1 The diagram shows the exploded structure of the gravity powder distribution mechanism.

[0029] Figure 4 This is a schematic diagram of the structural model of a gravity-fed powder distribution structure.

[0030] Figure 5 for Figure 4 A schematic diagram of the gravity powder distribution structure from another perspective. Detailed Implementation

[0031] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0035] like Figures 1 to 5 As shown, a gravity powder distribution structure 10 includes a powder distribution top cover 100, a gravity powder distribution paddle assembly 200, and a support assembly 300. The connecting end of the gravity powder distribution paddle assembly 200 is connected to the bottom end of the powder distribution top cover 100. The support assembly 300 has a guide limiting hole 310. The connecting end of the gravity powder distribution paddle assembly 200 passes through the guide limiting hole 310 and slides against the inner wall of the guide limiting hole 310. The powder distribution end of the gravity powder distribution paddle assembly 200 is located below the support assembly 300. The support assembly 300 includes an outer support 320 and a bearing 331 assembly 330. The outer support 320 has a mounting hole 321. The outer peripheral wall of the bearing 331 assembly 330 is fixedly connected to the wall of the mounting hole 321. The guide limiting hole 310 is formed in the bearing 331 assembly 330. The connecting end of the powder slurry assembly 200 is slidably limited to the bearing assembly 331 330, so that when the user rotates the powder dispensing top cover 100 to drive the gravity powder dispensing slurry assembly 200 to rotate relative to the outer support 320, the gravity powder dispensing structure 10 of this disclosure can reduce the friction between the gravity powder dispensing slurry assembly 200 and the outer support 320 through the bearing assembly 331 330, making it smoother and faster for the user to rotate the powder dispensing top cover 100 relative to the outer support 320. Compared with the powder dispensing method of the gravity powder dispenser in the above-mentioned related technologies, which requires rotating the entire powder dispenser relative to the coffee bowl, the height adaptive gravity powder dispenser of this disclosure is more labor-saving and convenient in the process of dispersing and leveling the coffee powder in the coffee bowl, thereby greatly improving the ease of use of the height adaptive gravity powder dispenser of this disclosure.

[0036] like Figures 1 to 5As shown, further, compared to the gravity-type powder dispenser in the aforementioned related technologies, which requires rotating the entire powder dispenser relative to the powder holder, the gravity powder dispensing structure 10 of this disclosure can disperse and even out the coffee powder in the powder holder without rotating the outer support 320. This allows the outer support 320 to be reliably positioned at a preset position on the powder holder, avoiding the problem of poor evenness of the coffee powder distribution in the powder holder due to the outer support 320 being misaligned when rotating the powder dispensing top cover 100. This greatly improves the powder dispensing effect of the height-adaptive gravity powder dispenser of this disclosure.

[0037] In this embodiment, when it is necessary to disperse and level the coffee powder in the coffee bowl, firstly, the gravity-type powder distribution structure 10 is placed on the coffee bowl, and the outer support 320 is positioned at a preset position in the coffee bowl; then, the powder distribution end of the gravity powder distribution paddle assembly 200 moves closer to the coffee powder in the coffee bowl by its own gravity, so that the connecting end of the gravity powder distribution paddle assembly 200 can drive the powder distribution top cover 100 to descend relative to the outer support 320; finally, after the powder distribution end of the gravity powder distribution paddle assembly 200 has leveled the coffee powder in the coffee bowl, the powder distribution top cover 100 will stop descending, and then rotate relative to the outer support 320, so that the powder distribution top cover 100 can drive the gravity powder distribution paddle assembly 200 to rotate relative to the outer support 320 through the bearing assembly 331, so that the powder distribution end of the gravity powder distribution paddle assembly 200 can disperse and level the coffee powder in the coffee bowl.

[0038] In the aforementioned gravity powder distribution structure 10, the connecting end of the gravity powder distribution paddle assembly 200 is connected to the bottom end of the powder distribution top cover 100. The support assembly 300 has a guide limiting hole 310. The connecting end of the gravity powder distribution paddle assembly 200 passes through the guide limiting hole 310 and slides against the inner wall of the guide limiting hole 310. The powder distribution end of the gravity powder distribution paddle assembly 200 is located below the support assembly 300. The outer support 320 has a mounting hole 321. The outer peripheral wall of the bearing 331 assembly 330 is fixedly connected to the hole wall of the mounting hole 321. The guide limiting hole 310 is formed in the bearing 331 assembly 330. The connecting end of the gravity powder distribution paddle assembly 200 is slidably limited to the bearing 331 assembly 330. This allows the gravity powder distribution structure 10 of this disclosure to reduce the friction between the gravity powder distribution paddle assembly 200 and the outer support 320 when the user rotates the powder distribution top cover 100, causing the gravity powder distribution paddle assembly 200 to rotate relative to the outer support 320. This makes it smoother and faster for the user to rotate the powder distribution top cover 100 relative to the outer support 320. Compared with the gravity powder distributor in the above-mentioned related technologies, which requires rotating the entire powder distributor relative to the coffee bowl, the height-adaptive gravity powder distributor of this disclosure is more labor-saving and convenient in the process of dispersing and leveling the coffee powder in the coffee bowl, thereby greatly improving the ease of use of the height-adaptive gravity powder distributor of this disclosure.

[0039] Furthermore, compared to the gravity-type powder dispenser in the aforementioned related technologies, which requires rotating the entire powder dispenser relative to the portafilter, the gravity powder dispenser structure 10 of this disclosure can disperse and evenly distribute the coffee powder in the portafilter without rotating the outer support 320. This allows the outer support 320 to be reliably positioned at a preset location on the portafilter, avoiding the problem of poor evenness of the coffee powder distribution in the portafilter due to the outer support 320 being misaligned when rotating the powder dispenser top cover 100. This greatly improves the powder distribution effect of the height-adaptive gravity powder dispenser of this disclosure.

[0040] In one embodiment, the powder cover 100 has a first annular guide limiting groove 110, and the top of the outer support 320 has a first annular guide flange 322 protruding along the outer periphery of the guide limiting hole 310. The first annular guide limiting groove 110 and the first annular guide flange 322 are arranged opposite to each other, and the inner wall of the first annular guide limiting groove 110 slides against the outer periphery of the first annular guide flange 322, so that the powder cover 100 can slide up and down relative to the outer support 320 along the guide path of the first annular guide flange 322 through the first annular guide limiting groove 110, thereby preventing the powder cover 100 from deviating during the descent relative to the outer support 320.

[0041] like Figures 2 to 3 As shown, in one embodiment, the gravity powder distribution paddle assembly 200 includes a gravity powder distribution paddle 210 and a connecting rod 220. The first end of the connecting rod 220 is connected to the top end of the gravity powder distribution paddle 210, and the second end of the connecting rod 220 is connected to the bottom end of the powder distribution top cover 100. The connecting rod 220 passes through the guide limiting hole 310 and is slidably limited to the bearing 331 assembly 330, so that when the powder distribution top cover 100 is rotated, the powder distribution top cover 100 can drive the connecting rod 220 to rotate, and the connecting rod 220 can drive the gravity powder distribution paddle 210 to rotate, so that the powder distribution top cover 100 can drive the gravity powder distribution paddle 210 to rotate relative to the support assembly 300, so as to disperse and spread the coffee powder in the powder container.

[0042] like Figures 2 to 3As shown, in one embodiment, the bearing 331 assembly 330 includes a bearing 331 and an inner support 332. The outer peripheral wall of the bearing 331 is fixedly connected to the wall of the mounting hole 321, and the inner peripheral wall of the bearing 331 is fixedly connected to the outer peripheral wall of the inner support 332, so that the inner support 332 is rotatably connected to the outer support 320. A guide limiting hole 310 is formed in the inner support 332, and the inner peripheral wall of the inner support 332 is slidably limited to the outer peripheral wall of the connecting rod 220, so that when the powder slurry descends relative to the outer support 320... The powder-spreading slurry can drive the connecting rod 220 to descend relative to the inner support 332. At the same time, when the powder-spreading top cover 100 rotates relative to the outer support 320, the powder-spreading top cover 100 can drive the connecting rod 220 to rotate relative to the outer support 320. The connecting rod 220 can drive the inner support 332 to rotate relative to the outer support 320 through the bearing 331, so that the connecting rod 220 can reduce the friction between itself and the outer support 320 through the bearing 331, thereby making the powder-spreading top cover 100 rotate more smoothly and quickly.

[0043] like Figures 2 to 3 As shown, in one embodiment, the cross-sections of the guide limiting hole 310 and the connecting rod 220 are both rhomboid, and the outer peripheral wall of the connecting rod 220 is correspondingly provided with the guide limiting hole 310, so that the connecting rod 220 can drive the inner bracket 332 to rotate relative to the outer bracket 320 through the bearing 331.

[0044] like Figures 2 to 3 As shown, in one embodiment, the gravity powder dispensing slurry 210 has a first threaded hole 211, and the first end of the connecting rod 220 has a first threaded contact surface 221. The first end of the connecting rod 220 is disposed in the first threaded hole 211 and screwed to the gravity powder dispensing slurry 210, so as to facilitate the installation and disassembly of the gravity powder dispensing slurry 210 and reduce the maintenance difficulty of the gravity powder dispensing structure 10.

[0045] like Figures 2 to 3 As shown, in one embodiment, a second threaded hole 120 is formed at the bottom end of the powder-distributing top cover 100, and a second threaded contact surface 222 is formed at the second end of the connecting rod 220. The second end of the connecting rod 220 is disposed in the second threaded hole 120 and screwed to the powder-distributing top cover 100, so as to facilitate the installation and disassembly of the gravity powder-distributing paddle assembly 200, thereby reducing the maintenance difficulty of the gravity powder-distributing structure 10.

[0046] like Figures 2 to 3As shown, in one embodiment, the top end of the gravity powder dispensing slurry 210 is provided with a second annular guide flange 212, and the bottom end of the outer support 320 is also formed with a second annular guide limiting groove 323 corresponding to the second annular guide flange 212. The second annular guide flange 212 slides against the inner wall of the second annular guide limiting groove 323, so that the gravity powder dispensing slurry 210 can slide up and down relative to the outer support 320 along the guide path of the second annular guide limiting groove 323 through the second annular guide flange 212; at the same time, the gravity powder dispensing slurry 210 can also rotate relative to the support assembly 300.

[0047] like Figures 2 to 3 As shown, in one embodiment, the outer peripheral wall of the powder cover 100 is formed with a friction surface 130 to allow the user to rotate the powder cover 100 more effectively.

[0048] like Figures 2 to 3 As shown, in one embodiment, the bottom of the gravity powder paddle 210 has a paddle-shaped structure so that the gravity powder paddle 210 can better disperse and spread the coffee powder in the coffee bowl.

[0049] This disclosure also provides a height-adaptive gravity powder distributor, including the gravity powder distribution structure 10 described in any of the above embodiments.

[0050] Compared with the prior art, this disclosure has at least the following advantages:

[0051] 1. In the aforementioned height-adaptive gravity powder distributor, the connecting end of the gravity powder dispensing paddle assembly 200 is connected to the bottom end of the powder dispensing top cover 100. The support assembly 300 has a guide limiting hole 310. The connecting end of the gravity powder dispensing paddle assembly 200 passes through the guide limiting hole 310 and slides against the inner wall of the guide limiting hole 310. The powder dispensing end of the gravity powder dispensing paddle assembly 200 is located below the support assembly 300. The outer support 320 has a mounting hole 321. The outer peripheral wall of the bearing 331 assembly 330 is fixedly connected to the hole wall of the mounting hole 321. The guide limiting hole 310 is formed in the bearing 331 assembly 330, and the connecting end of the gravity powder dispensing paddle assembly 200 slides and is limited by the bearing 331 assembly 330. The connection is such that when the user rotates the powder dispenser top cover 100, causing the gravity powder dispenser paddle assembly 200 to rotate relative to the outer support 320, the gravity powder dispenser structure 10 of this disclosure can reduce the friction between the gravity powder dispenser paddle assembly 200 and the outer support 320 through the bearing 331 assembly 330, making it smoother and faster for the user to rotate the powder dispenser top cover 100 relative to the outer support 320. Compared with the gravity powder dispenser in the above-mentioned related technologies, which requires rotating the entire powder dispenser relative to the coffee bowl, the height-adaptive gravity powder dispenser of this disclosure is more labor-saving and convenient in the process of dispersing and distributing coffee powder in the coffee bowl, thereby greatly improving the ease of use of the height-adaptive gravity powder dispenser of this disclosure.

[0052] 2. Compared to the gravity-type powder dispenser in the aforementioned related technologies, which requires rotating the entire powder dispenser relative to the portafilter, the gravity powder dispensing structure 10 of this disclosure can disperse and even out the coffee powder in the portafilter without rotating the outer support 320. This allows the user to securely fix the outer support 320 in a preset position by hand and rotate the powder dispensing top cover 100. This avoids the problem of poor evenness of the coffee powder in the portafilter due to the outer support 320 being misaligned when rotating the powder dispensing top cover 100, thereby greatly improving the powder dispensing effect of the height-adaptive gravity powder dispenser of this disclosure.

[0053] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A gravity-based powder distribution structure, comprising: Powder top cover; A gravity powder dispensing slurry assembly, wherein the connecting end of the gravity powder dispensing slurry assembly is connected to the bottom end of the powder dispensing top cover; A support assembly having a guide limiting hole, the connecting end of the gravity powder dispensing slurry assembly passing through the guide limiting hole and slidingly abutting against the inner wall of the guide limiting hole, and the powder dispensing end of the gravity powder dispensing slurry assembly being located below the support assembly. The feature is that the support assembly includes an outer support and a bearing assembly, the outer support has a mounting hole, the outer peripheral wall of the bearing assembly is fixedly connected to the wall of the mounting hole, the guide limiting hole is formed in the bearing assembly, and the connecting end of the gravity powder spreading slurry assembly is slidably limited connected to the bearing assembly.

2. The gravity powder distribution structure according to claim 1, characterized in that, The powder cover has a first annular guide limiting groove, and the top of the outer bracket has a first annular guide flange protruding along the outer periphery of the guide limiting hole. The first annular guide limiting groove and the first annular guide flange are opposite to each other, and the inner wall of the first annular guide limiting groove slides against the outer periphery of the first annular guide flange.

3. The gravity powder distribution structure according to claim 1, characterized in that, The gravity powder dispensing paddle assembly includes a gravity powder dispensing paddle and a connecting rod. The first end of the connecting rod is connected to the top end of the gravity powder dispensing paddle, and the second end of the connecting rod is connected to the bottom end of the powder dispensing top cover. The connecting rod passes through the guide limiting hole and is slidably limited to the bearing assembly.

4. The gravity powder distribution structure according to claim 3, characterized in that, The bearing assembly includes a bearing and an inner support. The outer peripheral wall of the bearing is fixedly connected to the wall of the mounting hole, and the inner peripheral wall of the bearing is fixedly connected to the outer peripheral wall of the inner support, so that the inner support is rotatably connected to the outer support. The guide limiting hole is formed in the inner support, and the inner peripheral wall of the inner support is slidably limited to the outer peripheral wall of the connecting rod.

5. The gravity powder distribution structure according to claim 3, characterized in that, The cross-sections of the guide limiting hole and the connecting rod are both rhomboid, and the outer peripheral wall of the connecting rod is correspondingly set with the guide limiting hole.

6. The gravity powder distribution structure according to claim 3, characterized in that, The gravity powder-distributing slurry has a first threaded hole, and the first end of the connecting rod has a first threaded contact surface. The first end of the connecting rod is disposed in the first threaded hole and screwed to the gravity powder-distributing slurry.

7. The gravity powder distribution structure according to claim 6, characterized in that, The bottom end of the powder cover has a second threaded hole, and the second end of the connecting rod has a second threaded contact surface. The second end of the connecting rod is disposed in the second threaded hole and screwed to the powder cover.

8. The gravity powder distribution structure according to claim 3, characterized in that, The top end of the gravity powder slurry is provided with a second annular guide flange, and the bottom end of the outer support is also provided with a second annular guide limiting groove corresponding to the second annular guide flange. The second annular guide flange slides against the inner wall of the second annular guide limiting groove.

9. The gravity powder distribution structure according to claim 3, characterized in that, The outer peripheral wall of the powder-coated top cover has a friction surface; and / or The bottom end of the gravity powder-distributing slurry has a paddle-shaped structure.

10. A height-adaptive gravity powder distributor, characterized in that, The gravity powder distribution structure includes any one of claims 1 to 9.