Powder sieving device and coffee powder sieving device

The powder sieve design, featuring threaded connections and magnetic ring reinforcement, solves the problems of irreplaceable sieves and powder spillage, achieving convenient replacement and resistance to powder spillage caused by external forces.

CN224206686UActive Publication Date: 2026-05-08HUIZHOU GUANGYI KITCHEN INTELLIGENT PRODUCTS TECHNOLOGY CO LTD
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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
2025-05-06
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The fixed screens of existing coffee sifters prevent users from changing to different screen sizes, and coffee powder is easily spilled under external force.

Method used

The powder screener features a threaded connection design, allowing for detachable installation of the screen via a knob and mounting post. A magnetic ring further enhances the connection strength, ensuring that the screen is not easily separated under external force.

Benefits of technology

It enables convenient screen replacement and prevents coffee powder from spilling under external force, meeting different brewing needs and improving connection strength to prevent coffee powder from spilling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a powder screening device and a coffee powder screening device.The powder screening device comprises a powder screening cup body, a screw joint mounting ring, a powder receiving cup and a powder screening assembly, the powder screening cup body is in threaded connection with the screw joint mounting ring, the powder receiving cup is in threaded connection with the screw joint mounting ring, the powder screening assembly comprises a screen and a rotary knob, and the screen is provided with a clearance opening; the screwing part of the knob sequentially penetrates through the clearance opening and the screwing hole, and the knob is connected with the mounting column, so that the screen is respectively propped against the knob and the mounting column, and the outer side of the screen is also propped against the powder receiving cup. When the screen needs to be detached and replaced, the screen can be detached and replaced only by unscrewing the rotary knob to be away from the mounting column, and after the screen is mounted, the screen is fixed by screwing the rotary knob, so that the screen is convenient to detach and replace; the powder screening cup body is in threaded connection with the threaded connection installation ring, the powder receiving cup is in threaded connection with the threaded connection installation ring, the strength is high, even if the powder screening device is impacted by external force or falls off, the threaded connection state can still be kept, and the situation that coffee powder is sprayed is not prone to occurring.
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Description

Technical Field

[0001] This disclosure relates to the field of coffee preparation tools, and in particular to a coffee powder sifter and coffee powder sifting device. Background Technology

[0002] The market has increasingly higher requirements for coffee processing functions, and the types of coffee powder to be processed are also increasing. This requires that the coffee sifting function (generally the powder receiving container, coffee sieve, powder receiving container base, etc., which have the function of receiving powder or selecting the sieve mesh) be adjusted within a more suitable range.

[0003] Currently, products on the market can be broadly divided into two types: the first type has separate powder receiving cups and separate powder sieving cups; the second type integrates powder receiving and sieving, but the sieve is fixed. For the second type, because the sieve is fixed, users cannot replace it with a different size sieve. Therefore, to replace it with a different size sieve, they must purchase a different product, which increases the cost of replacing the sieve.

[0004] To address the aforementioned issues, existing patent CN211796023U discloses a coffee sieve, in which a replaceable sieve is installed inside a sieve ring, and a waste coffee powder cup for collecting waste coffee is fixedly installed at the bottom of the sieve ring. This solution allows for convenient individual sieve replacement. In one embodiment, this solution uses magnets and magnetic blocks, magnetically fixing the waste coffee powder cup to the sieve ring simply by setting the magnets and magnetic blocks to cooperate. However, when using the aforementioned coffee sieve, if the user accidentally drops it or it is subjected to external impact, the waste coffee powder cup may separate from the sieve ring under the force of the external force, resulting in coffee powder spillage. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a coffee powder sifter and coffee powder sifting device that is easy to replace the screen and is not prone to coffee powder spillage under external force.

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

[0007] A powder sieving device includes a sieving cup body, a screw-on mounting ring, a powder receiving cup, and a sieving assembly. The screw-on mounting ring has an abutment protrusion. The sieving cup body is threadedly connected to the screw-on mounting ring, and a portion of the sieving cup body abuts against the abutment protrusion. The powder receiving cup is threadedly connected to the screw-on mounting ring, and a portion of the powder receiving cup abuts against the abutment protrusion. The opening of the sieving cup body and the opening of the powder receiving cup are opposite to each other. The powder receiving cup has a protruding mounting post, and a screw hole is formed in the mounting post. The sieving assembly includes a screen and a knob. The screen has a clearance opening. The screw portion of the knob passes through the clearance opening and the screw hole in sequence, and the knob is connected to the mounting post so that the screen abuts against the knob and the mounting post respectively. The outer side of the screen also abuts against the inner wall of the powder receiving cup.

[0008] In one embodiment, the screen includes a screen body, a damping ring, and a mounting washer. The clearance opening is located on the screen body, the damping ring is located on the outer side of the screen body, and the damping ring also abuts against the inner wall of the powder receiving cup. The mounting washer is located on the screen body, and the hollow portion of the mounting washer communicates with the clearance opening. The screw portion of the knob passes through the hollow portion of the mounting washer, the clearance opening, and the screw hole in sequence.

[0009] In one embodiment, the mounting post has a mounting protrusion, the hollow portion of which communicates with the screw hole. The mounting washer is arranged around the outside of the mounting protrusion, and the mounting protrusion passes through the clearance opening and the hollow portion of the mounting washer in sequence. Both the mounting protrusion and the mounting washer abut against one side of the knob.

[0010] In one embodiment, the powder screening cup body is provided with a first threaded outer ring, and the screw-fit mounting ring is provided with a first threaded inner ring, wherein the first threaded outer ring and the first threaded inner ring are screwed together.

[0011] In one embodiment, the powder receiving cup is provided with a second threaded outer ring, and the screw-fit mounting ring is provided with a second threaded inner ring. The first threaded inner ring, the abutting protrusion ring, and the second threaded inner ring are sequentially arranged on the inner wall of the screw-fit mounting ring, and the second threaded outer ring and the second threaded inner ring are screwed together.

[0012] In one embodiment, the mounting post is mounted on the central portion of the powder receiving cup.

[0013] In one embodiment, the powder receiving cup has a first receiving annular groove, and the screw-on mounting ring has a second receiving annular groove, with the openings of the first receiving annular groove and the second receiving annular groove being opposite to each other; the powder sieving assembly further includes a first magnetic ring and a second magnetic ring, with the first magnetic ring disposed in the first receiving annular groove and the second magnetic ring disposed in the second receiving annular groove.

[0014] In one embodiment, the screw-on mounting ring has a third receiving ring groove, and the powder screening cup has a fourth receiving ring groove, with the opening of the third receiving ring groove and the opening of the fourth receiving ring groove being opposite to each other; the powder screening assembly also includes a third magnetic ring and a fourth magnetic ring, with the third magnetic ring disposed in the third receiving ring groove and the fourth magnetic ring disposed in the fourth receiving ring groove.

[0015] In one embodiment, a first anti-slip pad is installed on one side of the powder sieving cup.

[0016] In one embodiment, a second anti-slip pad is installed on one side of the powder receiving cup.

[0017] A coffee sifting device includes the sifter described in any of the above embodiments.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] 1. The powder sieving device described above uses a screen and a knob. The screen is detachably mounted on the mounting column through the knob. When the screen needs to be replaced, simply loosen the knob to move it away from the mounting column. After the screen is installed, tighten the knob to fix the screen. This makes screen replacement convenient and meets the needs of users with different brewing requirements.

[0020] 2. Since the powder sifter cup body and the screw mounting ring, as well as the powder receiving cup and the screw mounting ring, are all connected by threads, the threaded connection has higher strength than a single magnetic connection. Even if the powder sifter is impacted or dropped, the powder cup body and the screw mounting ring, as well as the powder receiving cup and the screw mounting ring, will not separate and will still maintain the threaded connection, thus making it less likely for coffee powder to spill. Attached Figure Description

[0021] 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.

[0022] Figure 1This is a schematic diagram of the structure of a powder sieve in one embodiment;

[0023] Figure 2 for Figure 1 A partial structural diagram of the powder sieve shown;

[0024] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the powder sieve.

[0025] Figure 4 for Figure 3 A magnified view of the powder sieve at point A;

[0026] Figure 5 for Figure 4 A partially enlarged view of the powder sieve in another embodiment.

[0027] Attached label: 10, powder sieve;

[0028] 100. Powder sieving cup body; 101. Fourth receiving ring groove; 102. First anti-slip washer; 110. First threaded outer ring;

[0029] 200. Threaded mounting ring; 201. Second receiving ring groove; 202. Third receiving ring groove; 210. Abutting protrusion ring; 220. First threaded inner ring; 230. Second threaded inner ring;

[0030] 300. Powder receiving cup; 301. First receiving ring groove; 302. Second anti-slip washer; 310. Mounting post; 310a. Threaded hole; 311. Mounting convex ring; 320. Second threaded outer ring;

[0031] 400. Powder sieving assembly; 410. Screen; 410a. Air vent; 411. Screen body; 412. Damping ring; 413. Mounting washer; 420. Knob; 430. First magnetic ring; 440. Second magnetic ring; 450. Third magnetic ring; 460. Fourth magnetic ring. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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.

[0035] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0036] Please see Figures 1 to 4 This is a powder sieving device 10 according to an embodiment of the present invention, comprising a powder sieving cup body 100, a screw-on mounting ring 200, a powder receiving cup 300, and a powder sieving assembly 400. The screw-on mounting ring 200 is provided with an abutting protrusion 210. The powder sieving cup body 100 is threadedly connected to the screw-on mounting ring 200, and a portion of the structure of the powder sieving cup body 100 abuts against the abutting protrusion 210. The powder receiving cup 300 is threadedly connected to the screw-on mounting ring 200, and a portion of the structure of the powder receiving cup 300 abuts against the abutting protrusion 210. The opening of the powder sieving cup body 100 and the powder receiving cup 300 are connected. The openings of the powder receiving cup 300 are arranged opposite each other. The powder receiving cup 300 is provided with a mounting post 310, and a screw hole 310a is provided in the mounting post 310. The powder sieving assembly 400 includes a screen 410 and a knob 420. The screen 410 is provided with a clearance opening 410a. The screw part of the knob 420 passes through the clearance opening 410a and the screw hole 310a in sequence. The knob 420 is connected to the mounting post 310 so that the screen 410 abuts against the knob 420 and the mounting post 310 respectively. The outer side of the screen 410 also abuts against the inner wall of the powder receiving cup 300.

[0037] In the above embodiment, the powder sieving device 10 uses a screen 410 and a knob 420. The screen 410 is detachably mounted on the mounting column 310 through the knob 420. When the screen 410 needs to be replaced, simply loosen the knob 420 to move it away from the mounting column 310. After the screen 410 is installed, tightening the knob 420 fixes the screen 410 in place. This provides good convenience for replacing the screen 410 and meets the needs of different brewing methods. The user experience is improved. In addition, since the powder sifter 100 and the screw-mounted ring 200, and the powder receiving cup 300 and the screw-mounted ring 200 are all connected by threads, the threaded connection is stronger than the single magnetic connection. Even if the powder sifter 10 is impacted or dropped by external force, the powder cup and the screw-mounted ring 200, and the powder receiving cup 300 and the screw-mounted ring 200 will not separate and will still maintain the threaded connection. Therefore, it is not easy for coffee powder to spill.

[0038] like Figure 3 and Figure 4 As shown, in one embodiment, the screen 410 includes a screen body 411, a damping ring 412, and a mounting washer 413. An opening 410a is provided on the screen body 411, the damping ring 412 is provided on the outside of the screen body 411, and the damping ring 412 also abuts against the inner wall of the powder receiving cup 300. The mounting washer 413 is provided on the screen body 411, and the hollow part of the mounting washer 413 communicates with the opening 410a. The screw portion of the knob 420 passes through the hollow part of the mounting washer 413, the opening 410a, and the screw hole 310a in sequence, so that the knob 420, the mounting washer 413, the screen body 411, and the mounting post 310 abut against each other in sequence. It is understandable that when installing the screen 410, the damping ring 412 is pressed against the screen body 411 and the powder receiving cup 300 to prevent some particles from passing through the gap between the screen body 411 and the powder receiving cup 300 during coffee powder sieving. After the screen 410 is installed, the screen body 411 and the mounting washer 413 are pressed onto the mounting post 310 by the knob 420, thereby fixing the screen 410 in place by the knob 420.

[0039] In another embodiment, such as Figure 3 and Figure 4 As shown, the mounting post 310 has a mounting protrusion 311. The hollow part of the mounting protrusion 311 communicates with the screw hole 310a. The mounting washer 413 is arranged around the outside of the mounting protrusion 311. The mounting protrusion 311 passes through the clearance opening 410a and the hollow part of the mounting washer 413 in sequence. The mounting protrusion 311 and the mounting washer 413 both abut against one side of the knob 420 so as to fix the screen body 411 by the mounting protrusion 311 and prevent the screen body 411 from shaking when the screen user uses it.

[0040] like Figure 4As shown, in one embodiment, the powder screening cup 100 is provided with a first threaded outer ring 110, and the screw-mounted ring 200 is provided with a first threaded inner ring 220. The first threaded outer ring 110 and the first threaded inner ring 220 are screwed together so that the powder screening cup 100 and the screw-mounted ring 200 are connected by a spiral.

[0041] like Figure 4 As shown, in one embodiment, the powder receiving cup 300 is provided with a second threaded outer ring 320, and the screw-on mounting ring 200 is provided with a second threaded inner ring 230. The first threaded inner ring 220, the abutting protrusion ring 210 and the second threaded inner ring 230 are sequentially arranged on the inner wall of the screw-on mounting ring 200. The second threaded outer ring 320 and the second threaded inner ring 230 are screwed together so that the powder receiving cup 300 and the screw-on mounting ring 200 are connected by rotation.

[0042] In one embodiment, the mounting post 310 is installed at the center of the coffee powder receiving cup 300. In this way, when coffee powder is placed, after the coffee powder is sifted with the mounting post 310 as the center, the weight of the coffee powder is more evenly distributed across all positions of the sieve 410.

[0043] like Figure 5 As shown, in one embodiment, the powder receiving cup 300 has a first receiving ring groove 301, and the screw-on mounting ring 200 has a second receiving ring groove 201. The openings of the first receiving ring groove 301 and the second receiving ring groove 201 are opposite to each other. The powder sieving assembly 400 also includes a first magnetic ring 430 and a second magnetic ring 440. The first magnetic ring 430 is located in the first receiving ring groove 301, and the second magnetic ring 440 is located in the second receiving ring groove 201. It can be understood that when the first magnetic ring 430 and the second magnetic ring 440 are added, they are both used to assist the connection strength between the powder receiving cup 300 and the screw-on mounting ring 200. When the powder receiving cup 300 and the screw-on mounting ring 200 are screwed together, the first magnetic ring 430 and the second magnetic ring 440 are magnetically connected, thereby further enhancing the connection strength between the powder receiving cup 300 and the screw-on mounting ring 200.

[0044] Furthermore, such as Figure 5As shown, the screw-on mounting ring 200 has a third receiving ring groove 202, and the sieving cup body 100 has a fourth receiving ring groove 101. The openings of the third receiving ring groove 202 and the fourth receiving ring groove 101 are opposite to each other. The sieving assembly 400 also includes a third magnetic ring 450 and a fourth magnetic ring 460. The third magnetic ring 450 is located in the third receiving ring groove 202, and the fourth magnetic ring 460 is located in the fourth receiving ring groove 101. It can be understood that when the third magnetic ring 450 and the fourth magnetic ring 460 are added, they are both used to enhance the connection strength between the sieving cup body 100 and the screw-on mounting ring 200. When the sieving cup body 100 and the screw-on mounting ring 200 are screwed together, the third magnetic ring 450 and the fourth magnetic ring 460 are magnetically connected, thereby further enhancing the connection strength between the sieving cup body 100 and the screw-on mounting ring 200.

[0045] like Figure 3 As shown, in one embodiment, a first anti-slip washer 102 is installed on one side of the sieving cup 100. In this way, when the sieving cup 10 is placed upside down, the first anti-slip washer 102 is used to abut against the horizontal surface to prevent the sieving cup 10 from sliding.

[0046] like Figure 3 As shown, in one embodiment, a second anti-slip washer 302 is installed on one side of the powder receiving cup 300. In this way, when the powder sieving device 10 is placed, the second anti-slip washer 302 is used to abut against the horizontal surface to prevent the powder sieving device 10 from sliding.

[0047] This disclosure also provides a coffee sieving device, including the sieving device 10 of any of the above embodiments.

[0048] Compared with the prior art, this disclosure has at least the following advantages:

[0049] 1. The powder sieving device 10 described above uses a screen 410 and a knob 420. The screen 410 is detachably mounted on the mounting column 310 through the knob 420. When the screen 410 needs to be replaced, simply loosen the knob 420 to move it away from the mounting column 310 to replace the screen 410. After the screen 410 is installed, tighten the knob 420 to fix the screen 410. This makes it easy to replace the screen 410 and meets the needs of users with different brewing requirements.

[0050] 2. Since the powder sifter cup 100 and the screw-mounted ring 200, and the powder receiving cup 300 and the screw-mounted ring 200 are all connected by threads, the threaded connection has higher strength than the single magnetic connection. Even if the powder sifter 10 is impacted or dropped by external force, the powder cup and the screw-mounted ring 200, and the powder receiving cup 300 and the screw-mounted ring 200 will not separate and will still maintain the threaded connection. Therefore, it is not easy for coffee powder to spill.

[0051] 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 powder sieving device, characterized in that, include: Sieving cup body; A screw-on mounting ring is provided, wherein the screw-on mounting ring is provided with an abutting protrusion, the powder screening cup body is threadedly connected to the screw-on mounting ring, and a portion of the structure of the powder screening cup body abuts against the abutting protrusion; A powder receiving cup is threadedly connected to the screw-mounting ring. A portion of the powder receiving cup abuts against the abutting protrusion ring. The opening of the powder screening cup body is opposite to the opening of the powder receiving cup. The powder receiving cup has a protruding mounting post, and a screw hole is provided in the mounting post. The powder sieving assembly includes a screen and a knob. The screen has an opening for ventilation. The screw portion of the knob passes through the opening for ventilation and the screw hole in sequence. The knob is connected to the mounting post so that the screen abuts against the knob and the mounting post respectively. The outer side of the screen also abuts against the inner wall of the powder receiving cup.

2. The powder sieving device according to claim 1, characterized in that, The screen includes a screen body, a damping ring, and a mounting washer. The clearance opening is located on the screen body. The damping ring is located on the outside of the screen body and also abuts against the inner wall of the powder receiving cup. The mounting washer is located on the screen body, and the hollow part of the mounting washer communicates with the clearance opening. The screw part of the knob passes through the hollow part of the mounting washer, the clearance opening, and the screw hole in sequence.

3. The powder sieving device according to claim 2, characterized in that, The mounting post has a mounting protrusion, the hollow part of which communicates with the screw hole. The mounting washer is arranged around the outside of the mounting protrusion, and the mounting protrusion passes through the clearance opening and the hollow part of the mounting washer in sequence. Both the mounting protrusion and the mounting washer abut against one side of the knob.

4. The powder sieving device according to claim 1, characterized in that, The powder screening cup body is provided with a first threaded outer ring, and the screw-on mounting ring is provided with a first threaded inner ring, and the first threaded outer ring and the first threaded inner ring are screwed together.

5. The powder sieving device according to claim 4, characterized in that, The powder receiving cup is provided with a second threaded outer ring, and the screw-fit mounting ring is provided with a second threaded inner ring. The first threaded inner ring, the abutting protrusion ring and the second threaded inner ring are sequentially arranged on the inner wall of the screw-fit mounting ring, and the second threaded outer ring and the second threaded inner ring are screwed together.

6. The powder sieving device according to claim 1, characterized in that, The mounting post is installed at the center of the powder receiving cup.

7. The powder sieving device according to claim 1, characterized in that, The powder receiving cup has a first receiving ring groove, and the screw-on mounting ring has a second receiving ring groove. The openings of the first receiving ring groove and the second receiving ring groove are opposite to each other. The powder screening assembly also includes a first magnetic ring and a second magnetic ring. The first magnetic ring is located in the first receiving ring groove, and the second magnetic ring is located in the second receiving ring groove.

8. The powder sieving device according to claim 1, characterized in that, The screw-on mounting ring has a third receiving ring groove, and the powder screening cup has a fourth receiving ring groove. The openings of the third receiving ring groove and the fourth receiving ring groove are opposite to each other. The powder screening assembly also includes a third magnetic ring and a fourth magnetic ring. The third magnetic ring is located in the third receiving ring groove, and the fourth magnetic ring is located in the fourth receiving ring groove.

9. The powder sieving device according to claim 1, characterized in that, One side of the powder sieving cup is equipped with a first anti-slip pad; and / or, A second anti-slip pad is installed on one side of the powder receiving cup.

10. A coffee powder sifting device, characterized in that, Includes the powder sieving device according to any one of claims 1-9.