Residual powder removing mechanism of bean grinder and coffee electric grinder

Abstract

The utility model provides a residual powder removing mechanism of a bean grinder and an electric coffee grinder. The residual powder removing mechanism of the bean grinder comprises a bean grinder main body and an oscillation powder removing assembly, the oscillation powder removing assembly comprises a rotary driving shaft and a collision head, and a rotary cavity, a powder vibration collision cavity and a collision guide groove which are coaxially communicated are sequentially formed in the bean grinder main body; the rotating cavity and the powder vibrating impact cavity are respectively arranged on two sides of the powder outlet pipe; the rotary driving shaft is rotationally arranged in the rotary cavity, a pipe cavity of the powder outlet pipe and the powder vibration impact cavity in a penetrating mode, an impact part is formed in the powder vibration impact cavity by the rotary driving shaft, one end of the impact part abuts against the pipe wall of the powder outlet pipe, and a first driving magnetic block is arranged at the other end of the impact part; the end, facing the first driving magnetic block, of the collision head is provided with a first transmission magnetic block, and the first transmission magnetic block and the first driving magnetic block are arranged on the two sides of the rotating axis of the rotating driving shaft correspondingly, so that the collision part directly acts on the pipe wall of the powder outlet pipe, loss of the vibration effect is small, and residual powder on the powder outlet pipe can be more effectively vibrated off.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coffee bean grinding, and in particular to a coffee bean grinder residual powder cleaning mechanism and an electric coffee grinder. Background Art

[0002] A coffee grinder is an appliance used to grind coffee beans into powder. It is divided into two types: a hand-cranked grinder and an electric coffee grinder. The powder outlet tube of an electric coffee grinder is long and thin. The ground coffee powder will remain on the inner wall of the outlet tube due to static electricity, forming residual powder. This will not only easily cause the loss of coffee powder, but also reduce the freshness of the subsequent ground coffee powder, which can easily affect the aroma, quality, fresh taste and mouthfeel of the coffee. Therefore, some manufacturers have conducted further research and development on this issue.

[0003] For example, Chinese patent document CN217907446U discloses a residual powder cleaning structure of an electric coffee bean grinder, comprising a fixed sleeve, a vibrating powder tube sleeve and a vibrating powder tube, the vibrating powder tube sleeve is slidably sleeved on the outside of the vibrating powder tube, the fixed sleeve is slidably sleeved on the outside of the vibrating powder tube sleeve, the outer wall of the vibrating powder tube sleeve is sleeved with a first spring, one end of the first spring is abutted against the vibrating powder tube sleeve, and the other end is abutted against the fixed sleeve, the outer wall of the vibrating powder tube is sleeved with a second spring, one end of the second spring is abutted against the vibrating powder tube sleeve, and the other end is abutted against the vibrating powder tube, the vibrating powder tube sleeve is provided with an elastic pin, the outer wall of the vibrating powder tube is provided with a groove matching with the elastic pin, the fixed sleeve is provided with a fixing pin, the top of the fixing pin is provided with a first inclined surface, the elastic pin is provided with a second inclined surface matching with the first inclined surface, and the first inclined surface and the second inclined surface are used to drive the elastic pin away from the groove.

[0004] However, the design of the residual powder removal structure of the above electric coffee grinder has the following problems:

[0005] The residual powder removal structure of the electric grinder described above can drive the elastic pin to hit the grinder housing to shake off the residual powder by pulling the powder vibrating tube sleeve, but the space available for the grip of the powder vibrating tube sleeve is small, and it is difficult for the user to hold it firmly, resulting in difficulty in the repeated pulling process, and it is very easy to cause muscle fatigue, and the convenience of use is poor. At the same time, there is a distance between the grinder housing and the powder outlet pipe, and the vibration effect generated by the elastic pin hitting the grinder housing will be lost during the transmission process, resulting in poor residual powder removal effect. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a residual powder cleaning mechanism for a coffee bean grinder and an electric coffee grinder with good vibration effect and high residual powder cleaning efficiency.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A residual powder cleaning mechanism for a coffee bean grinder comprises a coffee bean grinder body and an oscillating powder cleaning component; the coffee bean grinder body is provided with a powder outlet pipe, and the oscillating powder cleaning component is arranged close to the powder outlet pipe;

[0009] The oscillating powder cleaning assembly includes a rotating drive shaft and an impact head, and the grinder body is sequentially provided with a coaxial rotating chamber, a vibrating powder impact chamber and an impact guide groove; the rotating chamber and the vibrating powder impact chamber are respectively arranged on both sides of the powder outlet pipe, and the rotating chamber is connected to the vibrating powder impact chamber through the tube cavity of the powder outlet pipe, and the vibrating powder impact chamber is connected to the notch of the impact guide groove;

[0010] The rotary drive shaft is respectively rotatably arranged in the rotary chamber, the tube chamber of the powder outlet pipe and the vibration powder impact chamber, and the rotary drive shaft is formed with an impact part in the vibration powder impact chamber, one end of the impact part abuts against the tube wall of the powder outlet pipe, and the other end of the impact part is provided with a first driving magnetic block; the impact head is slidably arranged in the impact guide groove and elastically connected to the groove bottom of the impact guide groove; the impact head is provided with a first transmission magnetic block at one end facing the first driving magnetic block, and the first transmission magnetic block and the first driving magnetic block are respectively arranged on both sides of the rotation axis of the rotary drive shaft;

[0011] When the rotary drive shaft rotates, the first driving magnetic block and the first transmission magnetic block are arranged opposite to or staggered to drive the impact head to repeatedly collide with the impact part.

[0012] In one embodiment, the first driving magnetic block and the first transmission magnetic block have opposite magnetic properties, and when the first driving magnetic block and the first transmission magnetic block are staggered, a movable gap is provided between the impact head and the impact part; or,

[0013] The first driving magnetic block has the same magnetic properties as the first transmission magnetic block. When the first driving magnetic block and the first transmission magnetic block are staggered, the impact head is pressed against the impact portion.

[0014] In one embodiment, a second driving magnetic block is also provided on the impact part, and the first driving magnetic block and the second driving magnetic block are respectively arranged on both sides of the rotation axis of the rotating drive shaft; the magnetism of the first transmission magnetic block is the same as the magnetism of the first driving magnetic block, and is opposite to the magnetism of the second driving magnetic block; when the rotating drive shaft rotates to a first predetermined angle, the first transmission magnetic block is arranged opposite to the first driving magnetic block; or, when the rotating drive shaft rotates to a second predetermined angle, the first transmission magnetic block and the second driving magnetic block are arranged opposite to each other.

[0015] In one embodiment, the impact head is also provided with a second transmission magnetic block, and the first transmission magnetic block and the second transmission magnetic block are respectively arranged on both sides of the rotation axis of the rotating drive shaft; the magnetism of the second transmission magnetic block is opposite to the magnetism of the first drive magnetic block, and is the same as the magnetism of the second drive magnetic block; when the rotating drive shaft rotates to a second predetermined angle, the second transmission magnetic block is arranged opposite to the first drive magnetic block; or, when the rotating drive shaft rotates to a first predetermined angle, the second transmission magnetic block is arranged opposite to the second drive magnetic block.

[0016] In one embodiment, an inlet shaft opening and an outlet shaft opening are provided on the tube wall of the powder outlet pipe, the rotating chamber is connected to the inlet shaft opening, and the outlet shaft opening is connected to the vibrating powder impact chamber; the rotating drive shaft passes through the inlet shaft opening and is arranged in the tube cavity of the powder outlet pipe, and passes through the outlet shaft opening and is arranged in the vibrating powder impact chamber, and the impact portion abuts against the edge of the outlet shaft opening.

[0017] In one embodiment, a vibration transmission sleeve is sleeved on the outside of the rotating drive shaft, and the vibration transmission sleeve is arranged in the tube cavity of the powder outlet pipe, and the two ends of the vibration transmission sleeve are respectively abutted against the edge of the shaft inlet and the edge of the shaft outlet.

[0018] In one of the embodiments, a guide rib is provided on the side wall of the impact guide groove, and a rotation-stopping groove is provided on the peripheral wall of the impact head, and the guide rib is slidably adapted to the rotation-stopping groove.

[0019] In one embodiment, one end of the rotating drive shaft away from the impact part extends out of the grinder body through the rotating cavity and forms a driving part; the driving part is used to be connected to the knob.

[0020] In one embodiment, the driving portion is square, the knob is provided with a mounting slot, the driving portion is inserted into the mounting slot, and is screwed to the bottom of the mounting slot.

[0021] An electric coffee grinder comprises a coffee grinder residual powder cleaning mechanism according to any one of the above embodiments.

[0022] Compared with the prior art, the present invention has at least the following advantages:

[0023] The above-mentioned residual powder cleaning mechanism of the grinder is that the first driving magnet is arranged on the impact head, the impact head is elastically connected to the bottom of the impact guide groove, the first transmission magnet is arranged at one end of the impact head facing the first driving magnet, the first transmission magnet and the first driving magnet are respectively arranged on both sides of the rotation axis of the rotating drive shaft, when the rotating drive shaft rotates, the first driving magnet and the first transmission magnet are arranged opposite to each other, and a magnetic force is generated between the first driving magnet and the first transmission magnet, and the magnetic force drives the impact head to overcome the elastic force and slide back and forth in the impact guide groove, so that the impact head can repeatedly collide with the impact part, and the collision of the impact head with the impact part will generate vibration. Because the impact part abuts against the tube wall of the powder outlet pipe, the impact part can transmit the vibration to the tube wall of the powder outlet pipe, and the tube wall of the powder outlet pipe is subjected to the vibration to shake off the residual powder remaining on the tube wall of the powder outlet pipe. Compared with the residual powder removal structure of the electric coffee grinder in the reference document, the residual powder removal mechanism of the coffee grinder described above drives the impact head to repeatedly impact the impact part by rotating the rotary drive shaft. Compared with pulling, the rotary drive does not require a large area of ​​gripping space, making the operation simpler, more labor-saving, and more convenient to use. At the same time, the impact part directly transmits the vibration to the wall of the powder outlet pipe, and the loss of the vibration effect is small, so that the residual powder on the powder outlet pipe can be shaken off more effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A cross-sectional view of a residual powder removal mechanism of a grinder according to an embodiment of the present disclosure;

[0026] Figure 2 is a cross-sectional view of a residual powder cleaning mechanism of a coffee bean grinder according to another embodiment of the present disclosure;

[0027] Figure 3 A partial cross-sectional view of a residual powder removal mechanism of a grinder according to another embodiment of the present disclosure;

[0028] Figure 4 A partial cross-sectional view of a residual powder removal mechanism of a grinder according to another embodiment of the present disclosure;

[0029] Figure 5 for Figure 3 A partial cross-sectional structural diagram of the residual powder removal mechanism of the grinder;

[0030] Figure 6 The exploded view of an electric coffee grinder according to an embodiment of the present disclosure.

[0031] Reference numerals: 10, electric coffee grinder; 100, residual powder removal mechanism of grinder; 110, main body of grinder; 1110, rotating chamber; 1111, guide rib; 1120, vibration powder impact chamber; 1130, impact guide groove; 1131, coil spring; 1140, drive installation chamber; 1210, rotating drive shaft; 1211, impact part; 121a, first transmission magnetic block; 121b, second transmission Magnetic block; 1212, driving unit; 1220, impact head; 1221, first driving magnetic block; 1222, second driving magnetic block; 1223, anti-rotation groove; 130, powder outlet pipe; 1310, tube cavity; 1311, shaft inlet; 1312, shaft outlet; 140, vibration transmission sleeve; 150, rotary driver; 160, control button; 170, knob; 1710, mounting slot; 180, screw. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0036] like Figure 1As shown, a residual powder cleaning mechanism 100 for a bean grinder of an embodiment includes a bean grinder body 110 and an oscillating powder cleaning component; a powder outlet pipe 130 is provided on the bean grinder body 110, and the oscillating powder cleaning component is arranged near the powder outlet pipe 130; the oscillating powder cleaning component includes a rotating drive shaft 1210 and an impact head 1220, and a coaxial rotating chamber 1110, a vibrating powder impact chamber 1120 and an impact guide groove 1130 are sequentially arranged in the bean grinder body 110; the rotating chamber 1110 and the vibrating powder impact chamber 1120 are respectively arranged on both sides of the powder outlet pipe 130, and the rotating chamber 1110 is connected to the vibrating powder impact chamber 1120 through the tube cavity 1310 of the powder outlet pipe 130, and the vibrating powder impact chamber 1120 is connected to the notch of the impact guide groove 1130; the rotating drive shaft 1210 rotates and penetrates the tube cavity 1310 of the rotating chamber 1110, the tube cavity 1310 of the powder outlet pipe 130 and the impact guide groove 1130 respectively. A powder vibration impact chamber 1120, a rotating drive shaft 1210 is formed with an impact portion 1211 in the powder vibration impact chamber 1120, one end of the impact portion 1211 abuts against the tube wall of the powder outlet pipe 130, and the other end of the impact portion 1211 is provided with a first driving magnetic block 1221; the impact head 1220 is slidably arranged in the impact guide groove 1130, and is elastically connected to the groove bottom of the impact guide groove 1130; the impact head 1220 is provided with a first transmission magnetic block 121a at one end facing the first driving magnetic block 1221, and the first transmission magnetic block 121a and the first driving magnetic block 1221 are respectively arranged on both sides of the rotation axis L of the rotating drive shaft 1210; when the rotating drive shaft 1210 rotates, the first driving magnetic block 1221 and the first transmission magnetic block 121a are arranged opposite to or staggered to drive the impact head 1220 to repeatedly collide with the impact portion 1211.

[0037] It can be understood that because the first driving magnet 1221 is arranged on the impact head 1220, the impact head 1220 is elastically connected to the bottom of the impact guide groove 1130, the first transmission magnet 121a is arranged at one end of the impact head 1220 facing the first driving magnet 1221, and the first transmission magnet 121a and the first driving magnet 1221 are respectively arranged on both sides of the rotation axis L of the rotating drive shaft 1210. When the rotating drive shaft 1210 rotates, the first driving magnet 1221 and the first transmission magnet 121a are arranged opposite to each other, and a magnetic force is generated between the first driving magnet 1221 and the first transmission magnet 121a. The magnetic force drives the impact head 1220 to overcome the elastic force and slide back and forth in the impact guide groove 1130, so that the impact head 1220 can repeatedly collide with the impact part 1211, and the collision of the impact head 1220 with the impact part 1211 will generate vibration. Because the impact part 1211 is in contact with the tube wall of the powder outlet pipe 130, the impact part 1211 can transmit the vibration to the tube wall of the powder outlet pipe 130, and the tube wall of the powder outlet pipe 130 is subjected to the vibration to shake off the residual powder remaining on the tube wall of the powder outlet pipe 130. Compared with the residual powder removal structure of the electric bean grinder in the comparative document, the above-mentioned residual powder removal mechanism 100 of the bean grinder drives the impact head 1220 to repeatedly impact the impact part 1211 by rotating the rotating drive shaft 1210. Compared with pulling, the rotary drive does not require a large area of ​​gripping space, making the operation simpler, more labor-saving, and more convenient to use. At the same time, the impact part 1211 directly transmits the vibration to the tube wall of the powder outlet pipe 130, and the loss of the vibration effect is small, so that the residual powder on the powder outlet pipe 130 can be shaken off more effectively.

[0038] In one embodiment, the rotation speed of the rotating drive shaft 1210 is set at 30r / min-50r / min. It can be understood that by keeping the rotation speed of the rotating drive shaft 1210 within the range of 30r / min-50r / min, the first driving magnet 1221 can have enough time to drive the collision head 1220 to collide with the collision part 1211, and at the same time, the collision head 1220 collides with the collision part 1211 with a certain frequency, ensuring that the residual powder can be effectively shaken off. Specifically, the rotation speed of the rotating drive shaft 1210 can be 30r / min, 40r / min or 50r / min. Of course, there is no limitation here, and those skilled in the art can also make other choices based on the residual powder removal effect.

[0039] like Figure 1As shown, in one embodiment, the magnetic properties of the first driving magnet 1221 and the first transmission magnet 121a are opposite, and when the first driving magnet 1221 and the first transmission magnet 121a are staggered, a movable gap is provided between the impact head 1220 and the impact portion 1211. It can be understood that because the magnetic properties of the first driving magnet 1221 and the first transmission magnet 121a are opposite, the impact head 1220 is elastically connected to the bottom of the impact guide groove 1130, and when the rotating driving shaft 1210 rotates to the point where the first driving magnet 1221 and the first transmission magnet 121a are arranged opposite to each other, the magnetic attraction between the first driving magnet 1221 and the first transmission magnet 121a is strong, and the first driving magnet 1221 absorbs the first transmission magnet 121a, and the first transmission magnet 121a drives the impact head 1220 to overcome the elastic sliding. When the collision guide groove 1130 is moved, the collision head 1220 collides with the collision part 1211 through the movable gap, and a restoring elastic force is formed between the collision head 1220 and the bottom of the collision guide groove 1130; when the rotating drive shaft 1210 rotates to the point where the first driving magnetic block 1221 and the first transmission magnetic block 121a are staggered, the magnetic attraction between the first driving magnetic block 1221 and the first transmission magnetic block 121a is weak, and the restoring elastic force drives the collision head 1220 to overcome the magnetic attraction and reset, so that there is an active gap between the collision head 1220 and the collision part 1211. As the rotating drive shaft 1210 continuously rotates along the rotation axis L, the collision head 1220 repeatedly collides with the collision part 1211, and the frequency of the collision head 1220 colliding with the collision part 1211 can be adjusted with the rotation speed of the rotating drive shaft 1210, so that the operation is more convenient.

[0040] Furthermore, a coil spring 1131 is provided in the impact guide groove 1130, and the coil spring 1131 is provided between the impact head 1220 and the groove bottom of the impact guide groove 1130, and the two ends of the coil spring 1131 are respectively connected to the groove bottom of the impact guide groove 1130 and the impact head 1220. It can be understood that the coil spring 1131 is stretched by the impact head 1220 in the impact guide groove 1130, and can generate a strong restoring elastic force to improve the driving efficiency of the impact head 1220. When the first driving magnetic block 1221 and the first transmission magnetic block 121a are staggered, the magnetic attraction between the first driving magnetic block 1221 and the first transmission magnetic block 121a is small, and the coil spring 1131 is in a stretched state, so that an active gap is maintained between the collision head 1220 and the impact part 1211; when the first driving magnetic block 1221 and the first transmission magnetic block 121a are arranged relative to each other, the magnetic attraction between the first driving magnetic block 1221 and the first transmission magnetic block 121a is large, and the collision head 1220 is affected. The magnetic attraction acts on the collision part 1211, and the coil spring 1131 is further stretched. When the first driving magnet 1221 and the first transmission magnet 121a are staggered again, the magnetic attraction between the first driving magnet 1221 and the first transmission magnet 121a becomes smaller, and the restoring elastic force of the coil spring 1131 pulls the collision head 1220 to reset, so that a movable gap is maintained between the collision head 1220 and the collision part 1211, which facilitates the collision head 1220 to collide with the collision part 1211 for the second time.

[0041] It can also be, Figure 2As shown, in another embodiment, the first driving magnet 1221 has the same magnetic properties as the first transmission magnet 121a. When the first driving magnet 1221 and the first transmission magnet 121a are staggered, the collision head 1220 is pressed against the collision portion 1211. It can be understood that because the first driving magnet 1221 has the same magnetic properties as the first transmission magnet 121a, the collision head 1220 is elastically connected to the bottom of the collision guide groove 1130. When the rotating drive shaft 1210 rotates to the point where the first driving magnet 1221 and the first transmission magnet 121a are arranged opposite to each other, the magnetic repulsion between the first driving magnet 1221 and the first transmission magnet 121a is strong, and the magnetic repulsion overcomes the elastic force between the collision head 1220 and the collision guide groove 1130, driving the collision head 1221 to rotate. 0 is far away from the impact part 1211 to form an impact stroke, and a restoring elastic force is formed between the impact head 1220 and the impact guide groove 1130; when the rotating drive shaft 1210 rotates to the point where the first driving magnetic block 1221 and the first transmission magnetic block 121a are staggered, the magnetic repulsion between the first driving magnetic block 1221 and the first transmission magnetic block 121a is weak, and the restoring elastic force overcomes the magnetic repulsion and slides in the impact guide groove 1130, and the impact head 1220 impacts the impact part 1211 through the impact stroke to generate vibration. As the rotating drive shaft 1210 continuously rotates along the rotation axis L, the impact head 1220 repeatedly impacts the impact part 1211, and the frequency of the impact head 1220 impacting the impact part 1211 can also be adjusted with the rotation speed of the rotating drive shaft 1210, which is more convenient to operate.

[0042] Furthermore, a coil spring 1131 is provided in the impact guide groove 1130, and the coil spring 1131 is provided between the impact head 1220 and the groove bottom of the impact guide groove 1130, and the two ends of the coil spring 1131 are respectively in contact with the groove bottom of the impact guide groove 1130 and the impact head 1220. It can be understood that the coil spring 1131 is compressed by the impact head 1220 in the impact guide groove 1130, and can generate a strong restoring elastic force to improve the driving efficiency of the impact head 1220. When the first driving magnet 1221 and the first transmission magnet 121a are staggered, the impact head 1220 is pressed against the impact part 1211, and the coil spring 1131 is in a compressed state; when the first driving magnet 1221 and the first transmission magnet 121a are opposite to each other, the magnetic repulsion between the first driving magnet 1221 and the first transmission magnet 121a drives the impact head 1220 away from the impact part 1211, and the impact head 1220 further compresses the coil spring 1131; when the first driving magnet 1221 and the first transmission magnet 121a are staggered again, the magnetic repulsion between the first driving magnet 1221 and the first transmission magnet 121a is reduced, and the restoring elastic force of the coil spring 1131 pushes the impact head 1220 to collide with the impact part 1211, which can effectively collide with the impact part 1211 and cause vibration.

[0043] Combination Figure 3 As shown, further, a second driving magnet 1222 is also provided on the impact part 1211, and the first driving magnet 1221 and the second driving magnet 1222 are respectively arranged on both sides of the rotation axis L of the rotating drive shaft 1210; the magnetic properties of the first transmission magnet 121a are the same as those of the first driving magnet 1221, and are opposite to those of the second driving magnet 1222; when the rotating drive shaft 1210 rotates to a first predetermined angle, the first transmission magnet 121a is arranged opposite to the first driving magnet 1221; or, when the rotating drive shaft 1210 rotates to a second predetermined angle, the first transmission magnet 121a is arranged opposite to the second driving magnet 1222. It can be understood that because the first driving magnet 1221 and the second driving magnet 1222 are respectively arranged on both sides of the rotation axis L of the rotating driving shaft 1210, the magnetic properties of the first transmission magnet 121a and the second driving magnet 1222 are opposite, when the rotating driving shaft 1210 rotates to the second predetermined angle, the second driving magnet 1222 and the first transmission magnet 121a are arranged opposite to each other, and the magnetic attraction between the second driving magnet 1222 and the first transmission magnet 121a is strong, and the elastic force between the impact head 1220 and the impact guide groove 1130 is weak, and the second driving magnet 1222 drives the impact head 1220 to collide with the impact part 1211 through the magnetic attraction. Because the first transmission magnet 121a has the same magnetic properties as the first driving magnet 1221, when the rotating drive shaft 1210 rotates to the first predetermined angle, the first driving magnet 1221 is arranged opposite to the first transmission magnet 121a, the magnetic repulsion between the first driving magnet 1221 and the first transmission magnet 121a is strong, and the elastic force between the impact head 1220 and the impact guide groove 1130 is weak. At the same time, the second driving magnet 1222 is staggered with the first transmission magnet 121a, and the second driving magnet 1222 The magnetic attraction between the first transmission magnet 121a is weak, and the magnetic repulsion is strong enough to overcome the magnetic attraction. The first driving magnet 1221 is driven away from the impact part 1211 by the magnetic repulsion. As the rotating drive shaft 1210 continues to rotate along the axis, the impact head 1220 repeatedly collides with the impact part 1211. The second driving magnet 1222 can enhance the impact force when the impact head 1220 collides with the impact part 1211 through the magnetic attraction, thereby ultimately enhancing the oscillation effect on the powder outlet pipe 130 and accelerating the efficiency of removing residual powder.

[0044] Specifically, the first predetermined angle and / or the second predetermined angle is 30°-180°. It can be understood that because the first predetermined angle is 30°-180°, the time for the first driving magnet 1221 to rotate to align with the first transmission magnet 121a can be shortened; at the same time, because the second predetermined angle is 30°-180°, the time for the second driving magnet 1222 to rotate to align with the first transmission magnet 121a can be shortened, thereby achieving high switching efficiency. At the same time, after the first transmission magnet 121a rotates at an angle of 30°-180°, the first transmission magnet 121a is subjected to a large degree of change in the magnetic force of each driving magnet, and the force change response of the impact head 1220 is faster, so that the impact frequency of the impact head 1220 is higher when the rotating drive shaft 1210 rotates at the same angle. Among them, the first predetermined angle can be 30°, 105° or 180°, and the second predetermined angle can be 30°, 105° or 180°. Of course, the sizes of the first predetermined angle and the second predetermined angle are not limited, and those skilled in the art can adjust them as needed.

[0045] like Figure 3 As shown, in the present embodiment, a second transmission magnet 121b is further provided on the impact head 1220, and the first transmission magnet 121a and the second transmission magnet 121b are respectively arranged on both sides of the rotation axis L of the rotating drive shaft 1210; the second transmission magnet 121b has a magnetic property opposite to that of the first drive magnet 1221 and is the same as that of the second drive magnet 1222; when the rotating drive shaft 1210 rotates to the second predetermined angle, the second transmission magnet 121b is arranged opposite to the first drive magnet 1221; or, when the rotating drive shaft 1210 rotates to the first predetermined angle, the second transmission magnet 121b is arranged opposite to the second drive magnet 1222.

[0046] It can be understood that because the first transmission magnetic block 121a and the second transmission magnetic block 121b are respectively arranged on both sides of the rotation axis L of the rotating drive shaft 1210, the magnetism of the second transmission magnetic block 121b is opposite to that of the first driving magnetic block 1221, and the magnetism of the first transmission magnetic block 121b and the second driving magnetic block 1222 are opposite, when the rotating drive shaft 1210 rotates to the second predetermined angle, the second transmission magnetic block 121b is arranged opposite to the first driving magnetic block 1221, and the magnetic attraction between the first driving magnetic block 1221 and the second transmission magnetic block 121b is strong, and the collision head 1 The elastic force between 220 and the impact guide groove 1130 is weak, and the first transmission magnetic block 121b and the second driving magnetic block 1222 are arranged relatively to each other. The magnetic attraction between the first transmission magnetic block 121b and the second driving magnetic block 1222 is strong, which further enhances the magnetic attraction between the impact part 1211 and the impact head 1220. The first driving magnetic block 1221 and the second driving magnetic block 1222 can jointly enhance the impact force when the impact head 1220 collides with the impact part 1211 through the magnetic attraction, and finally enhance the oscillation effect on the powder outlet pipe 130, thereby accelerating the efficiency of removing residual powder.

[0047] It can be understood that because the second transmission magnetic block 121b and the second driving magnetic block 1222 have the same magnetic properties, and the first transmission magnetic block 121a and the first driving magnetic block 1221 have the same magnetic properties, when the rotary drive shaft 1210 rotates to the first predetermined angle, the second transmission magnetic block 121b and the second driving magnetic block 1222 are arranged opposite to each other, the magnetic repulsion between the second transmission magnetic block 121b and the second driving magnetic block 1222 is strong, and the elastic force between the impact head 1220 and the impact guide groove 1130 is weak. At the same time, the first transmission magnetic block 121a and the first driving magnetic block 1 221 are arranged relative to each other, and the magnetic repulsion between the first transmission magnetic block 121a and the first driving magnetic block 1221 is strong, which further enhances the magnetic repulsion between the impact part 1211 and the impact head 1220. The first driving magnetic block 1221 and the second driving magnetic block 1222 can jointly accelerate the driving of the impact head 1220 away from the impact part 1211 through the magnetic repulsion, thereby improving the sliding efficiency of the impact head 1220 in the impact guide groove 1130, accelerating the impact speed, and finally enhancing the oscillation effect on the powder outlet pipe 130, thereby accelerating the efficiency of removing residual powder.

[0048] Specifically, in the present embodiment, the first predetermined angle and the second predetermined angle are both 180°, which can ensure that when the first transmission magnet 121a is positioned relative to the first driving magnet 1221, the second transmission magnet 121b is positioned relative to the second driving magnet 1222. At the same time, when the first transmission magnet 121a is positioned relative to the second driving magnet 1222, the second transmission magnet 121b is positioned relative to the first driving magnet 1221, and the structure is more compact.

[0049] In one embodiment, the first drive magnet 1221, the second drive magnet 1222, the first transmission magnet 121a and / or the second transmission magnet 121b can be electromagnets. It can be understood that the magnetic strength of the electromagnet can be accurately adjusted by controlling the current, and then the magnitude of the magnetic force between the impact head 1220 and the impact part 1211 can be adjusted, and finally the magnetic force between the impact head 1220 and the impact part 1211 can be appropriate according to the residual powder removal effect. It should be noted that the magnitude of the magnetic force can be obtained through repeated experiments, and is not limited here. Further, the magnetism of the first drive magnet 1221, the second drive magnet 1222, the first transmission magnet 121a and / or the second transmission magnet 121b can be changed by controlling the direction of the current, so that the magnetism of the first drive magnet 1221, the second drive magnet 1222, the first transmission magnet 121a and / or the second transmission magnet 121b can be changed as needed, which is more practical.

[0050] Combination Figure 4As shown, in one embodiment, a rotary driver 150 is also built into the grinder body 110, and the rotary driver 150 is fixed to the grinder body 110, and one end of the rotary drive shaft 1210 away from the impact portion 1211 is connected to the rotation drive end of the rotary driver 150. It can be understood that because the rotation drive end of the rotary driver 150 is connected to the end of the rotary drive shaft 1210 away from the impact portion 1211, the rotary drive shaft 1210 can be driven to rotate by the rotary driver 150, avoiding the inconvenience caused by manual rotation, and making it more convenient to use. At the same time, the rotary drive shaft 1210 is automatically controlled by the rotary driver 150, so that the rotation speed of the rotary drive shaft 1210 can be kept more uniform and stable, avoiding the situation of unstable rotation speed driven by manual driving. In this embodiment, a drive installation cavity 1140 is further formed in the grinder body 110. The drive installation cavity 1140 is arranged at one end of the tube cavity 1310 of the rotating cavity 1110 away from the powder outlet tube 130. The drive installation cavity 1140 is connected to the rotating cavity 1110. The rotary driver 150 is arranged in the drive installation cavity 1140 and fixed on the cavity wall of the drive installation cavity 1140. The rotary drive end of the rotary driver 150 extends into the rotating cavity 1110 and is clamped to the end of the rotary drive shaft 1210. It can be understood that by fixing the rotary driver 150 on the cavity wall of the drive installation cavity 1140, the rotary driver 150 can be firmly fixed, and at the same time, the rotary drive end of the rotary driver 150 is clamped to the end of the rotary drive shaft 1210. The structure is compact, and the rotary drive shaft 1210 can be driven to rotate more efficiently by the rotary driver 150. Furthermore, a control button 160 is embedded on the surface of the grinder body 110, and the control button 160 is electrically connected to the rotary driver. It can be understood that the user can quickly start or shut down the rotary driver 150 by pressing the control button 160, so as to more conveniently control the rotation of the rotary drive shaft 1210.

[0051] Combination Figure 3 and Figure 5As shown, in one embodiment, an inlet shaft opening 1311 and an outlet shaft opening 1312 are provided on the tube wall of the powder outlet pipe 130, the rotating cavity 1110 is connected to the inlet shaft opening 1311, and the outlet shaft opening 1312 is connected to the vibration powder impact cavity 1120; the rotating drive shaft 1210 passes through the inlet shaft opening 1311 and is arranged in the vibration powder impact cavity 1120, and the impact part 1211 abuts against the edge of the outlet shaft opening 1312. It can be understood that the rotating drive shaft 1210 enters the cavity 1310 of the powder outlet pipe 130 through the inlet shaft opening 1311, and passes through the cavity 1310 of the powder outlet pipe 130 from the outlet shaft opening 1312, so that the rotating drive shaft 1210 runs through the entire powder outlet pipe 130, with a compact structure and convenient processing. At the same time, the impact part 1211 abuts against the edge of the shaft outlet 1312 so that the vibration of the impact part 1211 can directly act on the powder outlet pipe 130 through the edge of the shaft outlet 1312, which can further reduce the loss of vibration during the transmission process and improve the vibration effect of the powder outlet pipe 130.

[0052] Combination Figure 3 As shown, in one embodiment, a vibration transmission sleeve 140 is sleeved on the outside of the rotating drive shaft 1210. The vibration transmission sleeve 140 is arranged in the tube cavity 1310 of the powder outlet pipe 130, and the two ends of the vibration transmission sleeve 140 are respectively abutted against the edge of the shaft inlet 1311 and the edge of the shaft outlet 1312. It can be understood that because the vibration transmission sleeve 140 is sleeved on the outside of the rotating drive shaft 1210, the vibration transmission sleeve 140 can move with the rotating drive shaft 1210. When the impact head 1220 collides with the impact part 1211 of the rotating drive shaft 1210, the impact part 1211 abuts against the edge of the shaft outlet 1312, and the vibration transmission sleeve 140 abuts against the edge of the shaft inlet 1311, transmitting the vibration to the edge of the shaft inlet 1311, so that the vibration on the powder outlet pipe 130 spreads from the edge of the shaft inlet 1311 and the edge of the shaft outlet 1312 to the entire powder outlet pipe 130, thereby making the vibration of the powder outlet pipe 130 more intense and improving the residual powder removal effect. At the same time, when the impact head 1220 collides with the impact part 1211 of the rotating drive shaft 1210, the vibration transmission sleeve 140 presses against the edge of the shaft outlet 1312, which not only prevents the rotating drive shaft 1210 from sliding axially, but also collides and vibrates the edge of the shaft outlet 1312, so that the impact head 1220 can produce a vibration effect on the powder outlet pipe 130 whether it is collided or not, which is more practical.

[0053] Furthermore, the two ends of the vibration sleeve 140 are respectively sealed at the edge of the shaft inlet 1311 and the edge of the shaft outlet 1312. Because the two ends of the vibration sleeve 140 are respectively sealed at the edge of the shaft inlet 1311 and the edge of the shaft outlet 1312, the vibration sleeve 140 can protect the rotating drive shaft 1210, prevent the coffee powder from entering the rotating chamber 1110 from the shaft inlet 1311 or entering the vibration powder impact chamber 1120 from the shaft outlet 1312, and can effectively prevent the coffee powder from affecting the rotation of the rotating drive shaft 1210 or the impact of the collision head 1220, and the stability of use is stronger. Specifically, both ends of the vibration sleeve 140 are rotationally sealed at the edge of the shaft inlet 1311 and the edge of the shaft outlet 1312 by setting a sealing ring (not shown). It can be understood that it is possible to maintain a sealed state without hindering the vibration sleeve 140 from rotating with the rotating drive shaft 1210, while taking into account both sealing and rotation, which is more convenient to use.

[0054] Combination Figure 5 As shown, in one embodiment, a guide rib 1111 is provided on the side wall of the impact guide groove 1130, and a rotation-stop groove 1223 is provided on the peripheral wall of the impact head 1220, and the guide rib 1111 is slidably adapted to the rotation-stop groove 1223. It can be understood that by making the guide rib 1111 slidably adapted to the rotation-stop groove 1223, the guide rib 1111 can guide the sliding direction of the impact head 1220, so that the impact head 1220 can slide more smoothly in the impact guide groove 1130. At the same time, when the adapter rotates with the rotating drive shaft 1210, the guide rib 1111 abuts against the groove wall of the rotation-stop groove 1223, which can limit the impact head 1220, and prevent the impact head 1220 from spinning in the impact guide groove 1130, causing the magnetic force of the impact head 1220 and the impact part 1211 to change, and finally affecting the collision effect.

[0055] Combination Figure 3 As shown, in one embodiment, one end of the rotating drive shaft 1210 away from the impact part 1211 extends out of the grinder body 110 through the rotating cavity 1110, and forms a driving part 1212; the driving part 1212 is used to connect to the knob 170. It can be understood that connecting to the driving part 1212 through the knob 170 is more convenient for human hands to grasp and save more effort. Specifically, the knob 170 is larger than the entrance of the rotating cavity 1110 to prevent the rotating drive shaft 1210 from slipping in the axial direction.

[0056] like Figure 3 and Figure 6As shown, further, in another embodiment, the driving portion 1212 is square, the knob 170 is provided with a mounting slot 1710, the driving portion 1212 is clamped in the mounting slot 1710, and is screwed to the bottom of the mounting slot 1710. Because the driving portion 1212 is set in a square shape, the square structure has edges, which can be better clamped in the mounting slot 1710, increase the friction between the knob 170 and the driving portion 1212, and improve the transmission efficiency. At the same time, the driving portion 1212 is screwed to the bottom of the mounting slot 1710 by the screw 180, further improving the connection strength between the knob 170 and the rotating drive shaft 1210, and more durable.

[0057] like Figure 6 As shown, the present disclosure also provides a coffee grinder 10, including a residual powder removal mechanism 100 of a grinder according to any of the above-mentioned embodiments. It can be understood that by applying the residual powder removal mechanism 100 of a grinder according to the present disclosure to the coffee grinder 10, the rotary drive does not require a large area of ​​gripping space compared to pulling, making the operation simpler, more labor-saving, and more convenient to use. At the same time, the vibration can be directly transmitted to the tube wall of the powder outlet tube 130 through the impact part 1211, and the loss of the vibration effect is small, so that the residual powder on the powder outlet tube 130 can be shaken off more effectively.

[0058] Compared with the prior art, the present invention has at least the following advantages:

[0059] The above-mentioned residual powder cleaning mechanism 100 of the grinder is that the first driving magnetic block 1221 is arranged on the collision head 1220, and the collision head 1220 is elastically connected to the bottom of the collision guide groove 1130. The first transmission magnetic block 121a is arranged at one end of the collision head 1220 facing the first driving magnetic block 1221. The first transmission magnetic block 121a and the first driving magnetic block 1221 are respectively arranged on both sides of the rotation axis L of the rotating driving shaft 1210. When the rotating driving shaft 1210 rotates, the first driving magnetic block 1221 and the first transmission magnetic block 121a are arranged opposite to each other, and a magnetic force is generated between the first driving magnetic block 1221 and the first transmission magnetic block 121a. The magnetic force drives the collision head 1220 to overcome the elastic force and slide back and forth in the collision guide groove 1130, so that the collision head 1220 can repeatedly collide with the impact part 1211, and the collision of the collision head 1220 with the impact part 1211 will generate vibration. Because the impact part 1211 is in contact with the tube wall of the powder outlet pipe 130, the impact part 1211 can transmit the vibration to the tube wall of the powder outlet pipe 130, and the tube wall of the powder outlet pipe 130 is subjected to the vibration to shake off the residual powder remaining on the tube wall of the powder outlet pipe 130. Compared with the residual powder removal structure of the electric bean grinder in the comparative document, the above-mentioned residual powder removal mechanism 100 of the bean grinder drives the impact head 1220 to repeatedly impact the impact part 1211 by rotating the rotating drive shaft 1210. Compared with pulling, the rotary drive does not require a large area of ​​gripping space, making the operation simpler, more labor-saving, and more convenient to use. At the same time, the impact part 1211 directly transmits the vibration to the tube wall of the powder outlet pipe 130, and the loss of the vibration effect is small, so that the residual powder on the powder outlet pipe 130 can be shaken off more effectively.

[0060] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A residual powder cleaning mechanism for a coffee bean grinder, comprising a coffee bean grinder body and an oscillating powder cleaning component; the coffee bean grinder body is provided with a powder outlet pipe, and the oscillating powder cleaning component is arranged close to the powder outlet pipe; It is characterized in that The oscillating powder cleaning assembly includes a rotating drive shaft and an impact head, and the grinder body is sequentially provided with a coaxial rotating chamber, a vibrating powder impact chamber and an impact guide groove; the rotating chamber and the vibrating powder impact chamber are respectively arranged on both sides of the powder outlet pipe, and the rotating chamber is connected to the vibrating powder impact chamber through the tube cavity of the powder outlet pipe, and the vibrating powder impact chamber is connected to the notch of the impact guide groove; The rotary drive shaft is respectively rotatably arranged in the rotary chamber, the tube chamber of the powder outlet pipe and the vibration powder impact chamber, and the rotary drive shaft is formed with an impact part in the vibration powder impact chamber, one end of the impact part abuts against the tube wall of the powder outlet pipe, and the other end of the impact part is provided with a first driving magnetic block; the impact head is slidably arranged in the impact guide groove and elastically connected to the groove bottom of the impact guide groove; the impact head is provided with a first transmission magnetic block at one end facing the first driving magnetic block, and the first transmission magnetic block and the first driving magnetic block are respectively arranged on both sides of the rotation axis of the rotary drive shaft; When the rotary drive shaft rotates, the first driving magnetic block and the first transmission magnetic block are arranged opposite to or staggered to drive the impact head to repeatedly collide with the impact part.

2. The coffee bean grinder residual powder removal mechanism according to claim 1, characterized in that: The first driving magnetic block and the first transmission magnetic block have opposite magnetic properties. When the first driving magnetic block and the first transmission magnetic block are staggered, a movable gap is provided between the collision head and the collision part; or, The first driving magnetic block has the same magnetic properties as the first transmission magnetic block. When the first driving magnetic block and the first transmission magnetic block are staggered, the impact head is pressed against the impact portion.

3. The residual powder removal mechanism of the grinder according to claim 1, characterized in that: A second driving magnetic block is also provided on the impact part, and the first driving magnetic block and the second driving magnetic block are respectively arranged on both sides of the rotation axis of the rotating drive shaft; the magnetism of the first transmission magnetic block is the same as the magnetism of the first driving magnetic block, and is opposite to the magnetism of the second driving magnetic block; when the rotating drive shaft rotates to a first predetermined angle, the first transmission magnetic block is arranged opposite to the first driving magnetic block; or, when the rotating drive shaft rotates to a second predetermined angle, the first transmission magnetic block and the second driving magnetic block are arranged opposite to each other.

4. The residual powder removal mechanism of the grinder according to claim 3, characterized in that: The impact head is also provided with a second transmission magnetic block, and the first transmission magnetic block and the second transmission magnetic block are respectively arranged on both sides of the rotation axis of the rotating drive shaft; the magnetism of the second transmission magnetic block is opposite to the magnetism of the first drive magnetic block, and is the same as the magnetism of the second drive magnetic block; when the rotating drive shaft rotates to a second predetermined angle, the second transmission magnetic block is arranged opposite to the first drive magnetic block; or, when the rotating drive shaft rotates to a first predetermined angle, the second transmission magnetic block is arranged opposite to the second drive magnetic block.

5. The residual powder removal mechanism of the grinder according to claim 1, characterized in that: An inlet shaft opening and an outlet shaft opening are provided on the tube wall of the powder outlet pipe, the rotating chamber is connected to the inlet shaft opening, and the outlet shaft opening is connected to the vibrating powder impact chamber; the rotating drive shaft passes through the inlet shaft opening and is arranged in the tube cavity of the powder outlet pipe, and passes through the outlet shaft opening and is arranged in the vibrating powder impact chamber, and the impact portion abuts against the edge of the outlet shaft opening.

6. The residual powder removal mechanism of the grinder according to claim 5, characterized in that: A vibration transmission sleeve is sleeved on the outside of the rotary drive shaft. The vibration transmission sleeve is arranged in the tube cavity of the powder outlet pipe. Two ends of the vibration transmission sleeve are respectively abutted against the edge of the shaft inlet and the edge of the shaft outlet.

7. The residual powder removal mechanism of the grinder according to claim 1, characterized in that: A guide convex rib is arranged on the side wall of the impact guide groove, and a rotation-stopping groove is arranged on the peripheral wall of the impact head. The guide convex rib is slidably adapted to the rotation-stopping groove.

8. The coffee bean grinder residual powder removal mechanism according to claim 1, characterized in that: One end of the rotating drive shaft away from the impact part extends out of the grinder body through the rotating cavity and forms a driving part; the driving part is used to be connected to the knob.

9. The coffee bean grinder residual powder removal mechanism according to claim 8, characterized in that: The driving part is square in shape, the knob is provided with a mounting slot, the driving part is clamped in the mounting slot and is screwed to the bottom of the mounting slot.

10. An electric coffee grinder, characterized in that: The invention comprises a residual powder cleaning mechanism for a coffee bean grinder as claimed in any one of claims 1 to 9.

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