Bean grinder grinding degree adjustment mechanism and electric coffee grinder

Abstract

The present invention provides a grinding degree adjustment mechanism for a bean grinder and an electric coffee grinder. The grinding degree adjustment mechanism for a bean grinder comprises a bean grinder body, a bean bin, a rotating shaft, an inner grinding core, an outer grinding disc and a grinding degree adjustment bracket; a bean grinder trough is provided on the bean grinder body, and the outer grinding disc is arranged in the bean grinder trough; a plurality of lifting guide grooves are evenly spaced on the end surface of the notch of the bean grinder trough, the outer grinding disc is arranged in the grinding degree adjustment bracket, and a plurality of abutting blocks are convexly arranged on the outer peripheral wall of the grinding degree adjustment bracket; the grinding degree adjustment bracket is accommodated in the bean grinder trough, and each abutting block is arranged in each lifting guide groove one by one and elastically connected to the groove bottom of the corresponding lifting guide groove; the bean outlet end of the bean bin is screwed to the outer peripheral wall of the notch of the bean grinder trough, and a bean outlet is provided at the bean outlet end of the bean bin, and the end surface of the bean outlet abuts against the grinding degree adjustment bracket, and the force of the grinding degree adjustment bracket on the end surface of the notch of the bean grinder trough is kept uniform, so that it can be lifted or lowered stably, and the consistency of the coarseness and fineness of the coffee powder is good.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee bean grinding, and in particular to a grinding degree adjustment mechanism of a coffee bean grinder and an electric coffee grinder. Background Art

[0002] Coffee bean grinders specifically include hand-cranked grinders and electric coffee grinders. Among them, electric coffee grinders are widely used because they can grind automatically and are more convenient to use. The size of coffee powder particles is directly related to the brewing and extraction effect of coffee powder, which changes the taste of brewed coffee. However, the size of coffee powder particles ground by most electric coffee grinders is fixed, making it difficult to grind coffee powder particles of different sizes. Some manufacturers have conducted further research and development on this issue.

[0003] For example, Chinese patent document CN101811077A discloses a cone grinding mill comprising an upper body, a feed hopper on the upper body, a middle body, a machine base and a discharge hopper on the machine base, a conical rotor is mounted on an eccentric main shaft, an inner cone crushing wall is located on the conical rotor, an outer cone crushing wall is arranged on the outer side of the conical rotor, an outer cone is arranged on the outer cone crushing wall, the outer cone is suspended on the upper frame through an adjusting device, and a fixing ring is arranged at the lower part thereof; a feed hopper is arranged on the upper body, and a material dividing body and a material blocking ring are arranged below the feed hopper; a spring shock absorbing device and an adjusting preload body are arranged between the upper frame and the outer cone; a convex groove positioning body is arranged between the outer cone and the middle body; upper and lower balancing pads are respectively arranged on the upper and lower sides of the conical rotor, and are respectively locked with special nuts and high-strength screws.

[0004] However, the design of the above-mentioned cone mill has the following problems:

[0005] In the above-mentioned cone mill, although the degree of grinding can be adjusted by adjusting the adjustment device to make the outer cone rise and fall relative to the inner cone crushing wall to adjust the gap between the inner cone crushing wall and the outer cone, when the adjustment device is adjusted, the side of the outer cone close to the adjustment device will tilt due to the force, so that the gap between one side of the outer cone and the inner cone crushing wall is large, and the gap between the other side and the inner cone crushing wall is small, making it difficult to raise the outer cone evenly, so that the coarseness consistency of the material finally ground is poor. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a coffee grinder and an electric coffee grinder with high grinding degree adjustment accuracy and good consistency of coffee powder coarseness and fineness.

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

[0008] A grinding degree adjustment mechanism for a bean grinder comprises a bean grinder body, a bean bin, a rotating shaft, an inner grinding core and an outer grinding disc;

[0009] The bean grinder body is provided with a bean grinding trough, the outer grinding disc is arranged in the bean grinding trough; the rotating shaft is rotatably arranged at the bottom of the bean grinding trough, the inner grinding core is arranged on the rotating shaft and accommodated in the grinding cavity of the outer grinding disc; the bean bin is arranged on the bean grinder body, and the bean outlet end of the bean bin is connected to the notch of the bean grinding trough;

[0010] The grinder grinding degree adjustment mechanism also includes a grind degree adjustment bracket;

[0011] A plurality of lifting guide grooves are evenly spaced on the end surface of the notch of the bean grinding trough, the outer grinding disc is arranged in the grinding degree adjustment bracket, and a plurality of stop blocks are convexly arranged on the outer peripheral wall of the grinding degree adjustment bracket; the grinding degree adjustment bracket is accommodated in the bean grinding trough, and each of the stop blocks is arranged in each of the lifting guide grooves one by one, and is elastically connected to the bottom of the corresponding lifting guide groove, so that the grinding degree adjustment bracket can be lifted and lowered relative to the bean grinding trough;

[0012] The bean outlet end of the bean bin is screwed to the outer peripheral wall of the notch of the bean grinding trough, and a bean outlet is provided at the bean outlet end of the bean bin. The bean outlet is arranged opposite to the notch of the bean grinding trough, and the end surface of the bean outlet is in contact with the grinding degree adjustment bracket to push the outer grinding disc to rise and fall relative to the inner grinding core.

[0013] In one of the embodiments, the lifting guide groove includes a guide sliding cavity and an installation cavity which are connected in sequence, the guide sliding cavity is close to the bean outlet, a lifting pressure spring is arranged in the installation cavity, and the resistance block is slidingly limited in the guide sliding cavity and pressed against the lifting pressure spring.

[0014] In one of the embodiments, a connecting port and a grinding disc installation cavity are sequentially opened in the grinding degree adjustment bracket, the outer grinding disc is installed in the grinding disc installation cavity, the end face of the bean outlet abuts against the end face of the connecting port, and the bean outlet is connected to the grinding cavity of the outer grinding disc through the connecting port.

[0015] In one embodiment, the end surface of the bean outlet is abutted against the end surface of the communication port through a thrust bearing, so that both ends of the thrust bearing are sealed to the bean outlet and the communication port respectively.

[0016] In one embodiment, a graduated threaded sleeve is formed at the bean outlet end of the bean bin, the graduated threaded sleeve is sleeved on the outer peripheral wall of the bean outlet, the bean bin is threadedly connected to the outer peripheral wall of the notch of the bean grinding trough through the graduated threaded sleeve, and the outer surface of the graduated threaded sleeve is provided with a grinding scale.

[0017] In one embodiment, the inner grinding core includes a threaded cover and a grinding head. The grinding head is sleeved on the transmission end of the rotating shaft and threadedly connected to the peripheral wall of the transmission end of the rotating shaft. The threaded cover is covered and screwed to the end of the transmission end of the rotating shaft to tighten the grinding head.

[0018] In one of the embodiments, a drive installation cavity is further provided in the grinder body, a rotary driver is provided in the drive installation cavity, a rotary hole is provided at the bottom of the grinder tank, and the rotary hole is connected to the drive installation cavity; the rotary shaft is rotatably provided in the rotary hole, and passes through the rotary hole to be connected to the rotary drive end of the rotary driver.

[0019] In one embodiment, a powder sweeper is further provided in the bean grinding hopper, and the powder sweeper includes a ring and a plurality of scraping and sweeping blades. The ring is sleeved on the outside of the rotating shaft, and the scraping and sweeping blades are arranged on the outer ring wall of the ring at intervals, and each scraping and sweeping blade is attached to the bottom of the bean grinding hopper. The wall of the bean grinding hopper is provided with a powder discharge port corresponding to the position of the powder sweeper.

[0020] In one of the embodiments, a bean inlet opposite to the bean outlet is provided on the bean bin, and a closing cover is provided on the bean inlet, and the closing cover is magnetically connected to the end surface of the bean inlet.

[0021] An electric coffee grinder comprises the grinding degree adjustment mechanism of any one of the above embodiments.

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

[0023] 1) A plurality of lifting guide grooves are evenly spaced on the end surface of the notch of the bean grinding trough. When the grinding degree adjustment bracket is accommodated in the bean grinding trough, the respective stop blocks protruding from the outer peripheral wall of the grinding degree adjustment bracket are respectively arranged in the respective lifting guide grooves and elastically connected to the groove bottoms of the corresponding lifting guide grooves, so that the grinding degree adjustment bracket can be lifted and lowered in the bean grinding trough by elastic force. Furthermore, because the bean outlet end of the bean bin is screwed to the outer peripheral wall of the notch of the bean grinding trough, the end face of the bean outlet abuts against the grinding degree adjustment bracket, the user can twist the bean bin to make the end face of the bean outlet push the grinding degree adjustment bracket to move downward, so that the outer grinding disc in the grinding degree adjustment bracket drops relative to the inner grinding core, and then the inner grinding core rises relatively in the grinding cavity of the outer grinding disc. Alternatively, the user can twist the bean bin to make the end face of the bean outlet move upward, and the grinding degree adjustment bracket will be lifted upward by the elastic force, so that the outer grinding disc in the grinding degree adjustment bracket rises relative to the inner grinding core, and then the inner grinding core drops relatively in the grinding cavity of the outer grinding disc, which can change the gap between the inner grinding core and the grinding cavity, and finally realize the adjustment of the grinding degree of the grinding degree adjustment mechanism of the grinder, which is more convenient for users to use.

[0024] 2) Compared with the conical grinding mill in the prior art, the grinding degree adjustment mechanism of the above-mentioned grinder forms a plurality of evenly dispersed force points between the end faces of the notch of the bean grinding trough by elastically connecting each stop block to the bottom of the corresponding lifting guide groove. The grinding degree adjustment bracket can be lifted up smoothly as a whole through the elastic force between each stop block and the corresponding lifting guide groove. At the same time, the grinding degree adjustment bracket is pushed by the end face of the bean outlet to overcome the decrease in elastic force. The force on each force point of the grinding degree adjustment bracket on the end face of the notch of the bean grinding trough remains consistent, so that the grinding degree adjustment bracket can be lifted up or put down smoothly as a whole, is less likely to tilt, and can effectively improve the consistency of the coarseness of the ground coffee powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a partial structural schematic diagram of a grinding degree adjustment mechanism of a coffee bean grinder according to an embodiment of the present disclosure;

[0027] Figure 2 for Figure 1 A first partial cross-sectional view of the grinder grinding adjustment mechanism shown;

[0028] Figure 3 for Figure 1 A second partial cross-sectional view of the grinder grinding adjustment mechanism shown;

[0029] Figure 4 An exploded view of an electric coffee grinder according to another embodiment is disclosed.

[0030] Figure numerals: 10, electric coffee grinder; 100, grinding degree adjustment mechanism of grinder; 110, grinder body; 1110, grinder tank; 1111, lifting guide groove; 111a, guide slide cavity; 111b, mounting cavity; 111c, lifting spring; 1112, rotating hole; 1113, powder discharge port; 1120, first support arm; 1130, second support arm; 120, bean bin; 1210, bean outlet; 1220, scale thread sleeve; 1221, grinding scale; 1230, bean inlet; 1231, first magnetic block ; 1240, closing cover; 1241, second magnetic block; 130, rotating shaft; 1310, transmission end; 140, inner grinding core; 1410, threaded cover; 1420, grinding head; 150, outer grinding disc; 1510, grinding chamber; 160, grinding degree adjustment bracket; 1610, connecting port; 1620, grinding disc installation chamber; 1630, abutment block; 170, thrust bearing; 180, drive installation chamber; 1810, rotary drive; 190, powder sweeper; 1910, sleeve ring; 1920, scraping and sweeping slurry blade; 200, bottom plate. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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:

[0035] like Figure 1 and Figure 2As shown, a grind degree adjustment mechanism 100 of a bean grinder according to an embodiment includes a bean grinder body 110, a bean bin 120, a rotating shaft 130, an inner grinding core 140, an outer grinding disc 150 and a grind degree adjustment bracket 160; a bean grinding trough 1110 is provided on the bean grinder body 110, and an outer grinding disc 150 is arranged in the bean grinding trough 1110; the rotating shaft 130 is rotatably arranged at the bottom of the bean grinding trough 1110, and the inner grinding core 140 is arranged on the rotating shaft 130 and accommodated in a grinding cavity 1510 of the outer grinding disc 150; the bean bin 120 is arranged on the bean grinder body 110, and a bean outlet end of the bean bin 120 is connected to a notch of the bean grinding trough 1110; a plurality of lifting guide grooves 1111 are evenly spaced on the end surface of the notch of the bean grinding trough 1110, and the outer grinding disc 150 is arranged The grind degree adjustment bracket 160 is placed in the grind degree adjustment bracket 160, and a plurality of abutting blocks 1630 are convexly provided on the outer peripheral wall of the grind degree adjustment bracket 160; the grind degree adjustment bracket 160 is accommodated in the bean grinding trough 1110, and each abutting block 1630 is correspondingly arranged in each lifting guide groove 1111, and is elastically connected to the groove bottom of the corresponding lifting guide groove 1111, so that the grind degree adjustment bracket 160 can be lifted and lowered relative to the bean grinding trough 1110; the bean outlet end of the bean bin 120 is screwed to the outer peripheral wall of the notch of the bean grinding trough 1110, and the bean outlet end of the bean bin 120 is provided with a bean outlet 1210, and the bean outlet 1210 is arranged opposite to the notch of the bean grinding trough 1110, and the end surface of the bean outlet 1210 abuts against the grind degree adjustment bracket 160, so as to push the outer grinding disc 150 to be lifted and lowered relative to the inner grinding core 140.

[0036] It can be understood that by evenly spacing a plurality of lifting guide grooves 1111 on the end surface of the notch of the bean grinding trough 1110, when the grinding degree adjustment bracket 160 is accommodated in the bean grinding trough 1110, the respective stop blocks 1630 protruding from the outer peripheral wall of the grinding degree adjustment bracket 160 are respectively arranged in the respective lifting guide grooves 1111 and elastically connected to the bottom of the corresponding lifting guide groove 1111, so that the grinding degree adjustment bracket 160 can be lifted and lowered in the bean grinding trough 1110 by elastic force. Because the bean outlet end of the bean bin 120 is screwed to the outer peripheral wall of the notch of the bean grinding tank 1110, and the end surface of the bean outlet 1210 abuts against the grinding degree adjustment bracket 160, the user can twist the bean bin 120 to make the end surface of the bean outlet 1210 push the grinding degree adjustment bracket 160 to move downward, so that the outer grinding disc 150 in the grinding degree adjustment bracket 160 descends relative to the inner grinding core 140, and then the inner grinding core 140 rises relatively in the grinding cavity 1510 of the outer grinding disc 150, or the user The end surface of the bean outlet 1210 can be moved upward by twisting the bean bin 120, and the grinding degree adjustment bracket 160 will be lifted upward by the elastic force, so that the outer grinding disc 150 in the grinding degree adjustment bracket 160 rises relative to the inner grinding core 140, and then the inner grinding core 140 is relatively lowered in the grinding cavity 1510 of the outer grinding disc 150, which can change the gap between the inner grinding core 140 and the grinding cavity 1510, and finally the grinding degree of the grinder grinding degree adjustment mechanism 100 can be adjusted, which is more convenient for users.

[0037] It can be understood that, compared with the conical grinding mill in the prior art, the above-mentioned grinder grinding degree adjustment mechanism 100 forms a plurality of evenly dispersed force points between the end faces of the notch of the bean grinding tank 1110 by elastically connecting each stop block 1630 to the bottom of the corresponding lifting guide groove 1111, and the grinding degree adjustment bracket 160 can be lifted up smoothly as a whole through the elastic force between each stop block 1630 and the corresponding lifting guide groove 1111, and at the same time, the grinding degree adjustment bracket 160 is pushed by the end face of the bean outlet 1210 to overcome the decrease in elastic force, and the forces on each force point of the grinding degree adjustment bracket 160 on the end face of the notch of the bean grinding tank 1110 remain consistent, so that the grinding degree adjustment bracket 160 can be lifted up or put down smoothly as a whole, and is less likely to tilt, which can effectively improve the consistency of the coarseness of the ground coffee powder.

[0038] Combination Figure 1As shown, in this embodiment, the number of the lifting guide grooves 1111 is three, and each lifting guide groove 1111 is evenly spaced along the end surface of the notch of the bean grinding tank 1110. It can be understood that the number of the abutment blocks 1630 is three, and each abutment block 1630 is correspondingly arranged in each lifting guide groove 1111, and elastically connected to the groove bottom of the corresponding lifting guide groove 1111, so that the grinding degree adjustment bracket 160 has three force points, and the three force points support the grinding degree adjustment bracket 160, which can prevent the grinding degree adjustment bracket 160 from swinging, and finally enable the grinding degree adjustment bracket 160 to be stably lifted and lowered in the bean grinding tank 1110.

[0039] Combination Figure 2 As shown, in one embodiment, the lifting guide groove 1111 includes a guide sliding cavity 111a and a mounting cavity 111b which are connected in sequence, the guide sliding cavity 111a is close to the bean outlet 1210, and a lifting pressure spring 111c is arranged in the mounting cavity 111b, and the stop block 1630 is slidably limited in the guide sliding cavity 111a and pressed against the lifting pressure spring 111c. It can be understood that by installing the lifting pressure spring 111c in the mounting cavity 111b, the lifting pressure spring 111c can be securely installed in the mounting cavity 111b, so as to prevent the lifting pressure spring 111c from accidentally popping out of the lifting guide groove 1111. At the same time, by sliding the stop block 1630 in the guide slide cavity 111a, the cavity wall of the guide slide cavity 111a can abut and limit the stop block 1630, so that the stop block 1630 can slide smoothly along the guide slide cavity 111a, so that the grinding degree adjustment bracket 160 can be vertically raised and lowered in the bean grinding trough 1110, further reducing the possibility of the grinding degree adjustment bracket 160 tilting.

[0040] Combination Figure 2 As shown, in one embodiment, a communication port 1610 and a grinding disc installation cavity 111b are sequentially provided in the grinding degree adjustment bracket 160, the outer grinding disc 150 is installed in the grinding disc installation cavity 111b, the end surface of the bean outlet 1210 abuts against the end surface of the communication port 1610, and the bean outlet 1210 is connected to the grinding cavity 1510 of the outer grinding disc 150 through the communication port 1610. It can be understood that the end surface of the bean outlet 1210 abuts against the end surface of the communication port 1610, and the bean outlet 1210 is connected to the grinding cavity 1510 of the outer grinding disc 150 through the communication port 1610, the structure is compact, and the path between the bean outlet 1210 and the communication port 1610 can be shortened. When the coffee beans are discharged from the bean outlet 1210, they can fall into the grinding cavity 1510 more directly, shortening the time of coffee bean grinding and improving efficiency. At the same time, the end face of the bean outlet 1210 abuts against the end face of the connecting port 1610, reducing the gap between the end faces of the bean outlet 1210 and the connecting port 1610, which can effectively prevent coffee beans from accidentally entering the gap and causing additional losses.

[0041] Combination Figure 2As shown, in this embodiment, the end face of the bean outlet 1210 abuts against the end face of the communication port 1610 through the thrust bearing 170, so that the two ends of the thrust bearing 170 are respectively sealed to the bean outlet 1210 and the communication port 1610. It can be understood that because the two ends of the thrust bearing 170 abut against the end face of the bean outlet 1210 and the end face of the communication port 1610, when the user twists the bean bin 120, the end face of the bean outlet 1210 presses against the end face of the communication port 1610 through the thrust bearing 170, and pushes the grinding degree adjustment bracket 160 to move downward. At the same time, due to the action of the thrust bearing 170, the end face of the bean outlet 1210 and the end face of the communication port 1610 do not directly rub against each other, so that the grinding degree adjustment bracket 160 does not interfere with the twisting of the bean bin 120, and the twisting of the bean bin 120 does not drive the twisting of the grinding degree adjustment bracket 160, so that the twisting process of the bean bin 120 is more convenient and smooth. Specifically, the seat ring of the thrust bearing 170 is fixedly abutted against the end face of the bean outlet 1210, and the shaft ring of the thrust bearing 170 is fixedly abutted against the end face of the connecting port 1610. When the bean bin 120 is twisted, the seat ring of the thrust bearing 170 rotates with the bean bin 120 relative to the shaft ring of the thrust bearing 170, and will not cause the grinding degree adjustment bracket 160 to twist, thereby making the adjustment of the grinding degree smoother. Furthermore, because both ends of the thrust bearing 170 are respectively sealed at the bean outlet 1210 and the connecting port 1610, and the bean outlet 1210 is connected to the connecting port 1610 through the inner hole of the thrust bearing 170, when the coffee beans are discharged from the bean outlet 1210, the coffee beans can fall into the connecting port 1610 through the inner hole of the thrust bearing 170, and the thrust bearing 170 can further fill the gap between the end face of the bean outlet 1210 and the end face of the connecting port 1610, thereby further preventing the coffee beans from accidentally entering the gap and causing additional losses.

[0042] In one embodiment, a graduated threaded sleeve 1220 is formed at the bean outlet end of the bean bin 120, and the graduated threaded sleeve 1220 is sleeved on the outer peripheral wall of the bean outlet 1210. The bean bin 120 is threadedly connected to the outer peripheral wall of the notch of the bean grinding tank 1110 through the graduated threaded sleeve 1220, and a grinding scale 1221 is provided on the outer surface of the graduated threaded sleeve 1220. It can be understood that because the bean bin 120 is threadedly connected to the outer peripheral wall of the notch of the bean grinding tank 1110 through the graduated threaded sleeve 1220, the user can twist the graduated threaded sleeve 1220 to make the end surface of the bean outlet 1210 press and push the grinding degree adjustment bracket 160 down, and at the same time adjust the grinding degree to the required grinding degree by observing the grinding scale 1221 on the outer surface of the graduated threaded sleeve 1220. The grinding scale 1221 provides a reference standard for the twisting of the bean bin 120, so that the user can more accurately adjust to the required grinding degree, which is more convenient for the user to use.

[0043] Combination Figure 3As shown, in one embodiment, the inner grinding core 140 includes a threaded cover 1410 and a grinding head 1420. The grinding head 1420 is sleeved on the transmission end 1310 of the rotating shaft 130 and is threadedly connected to the peripheral wall of the transmission end 1310 of the rotating shaft 130; the threaded cover 1410 covers and is screwed to the end of the transmission end 1310 of the rotating shaft 130 to tighten the grinding head 1420. It can be understood that because the grinding head 1420 is sleeved on the transmission end 1310 of the rotating shaft 130 and is threadedly connected to the peripheral wall of the transmission end 1310 of the rotating shaft 130, the user directly twists the grinding head 1420 to make the grinding head 1420 rise and fall in the grinding cavity 1510 of the outer grinding disc 150, thereby adjusting the gap between the grinding head 1420 and the grinding cavity 1510 of the outer grinding disc 150, so that the above-mentioned grinder grinding degree adjustment mechanism 100 can adjust the grinding degree by twisting the bean bin 120 or the grinding head 1420, realizing two-stage adjustment, and the combination of the two-stage adjustment can make a more precise adjustment of the grinding degree. At the same time, the threaded cover 1410 is covered and screwed to the end of the transmission end 1310 of the rotating shaft 130, and the cover edge of the threaded cover 1410 is pressed against the grinding head 1420, so that the grinding head 1420 can be firmly set on the transmission end 1310 of the rotating shaft 130, preventing the grinding head 1420 from loosening from the end of the transmission end 1310 of the rotating shaft 130 during the grinding rotation process.

[0044] Combination Figure 2 As shown, in one embodiment, a drive installation cavity 180 is further provided in the grinder body 110, a rotary driver 1810 is provided in the drive installation cavity 180, a rotary hole 1112 is provided at the bottom of the grinder tank 1110, and the rotary hole 1112 is connected to the drive installation cavity 180; the rotating shaft 130 is rotatably provided in the rotary hole 1112, and passes through the rotary hole 1112 to be connected to the rotary driving end of the rotary driver 1810. It can be understood that because the rotating shaft 130 passes through the rotary hole 1112 to be connected to the rotary driving end of the rotary driver 1810, the rotating shaft 130 can be directly driven to rotate by the rotary driver 1810, and the rotating shaft 130 drives the inner grinding core 140 to rotate in the grinding cavity 1510 of the outer grinding disc 150, so that automatic grinding can be performed, which is more labor-saving, convenient, and more practical than the manual method.

[0045] Combination Figure 2 and Figure 3As shown, in one embodiment, a powder sweeper 190 is further provided in the bean grinding trough 1110, and the powder sweeper 190 includes a collar 1910 and a plurality of scraping and sweeping blades 1920. The collar 1910 is sleeved on the outside of the rotating shaft 130, and the scraping and sweeping blades 1920 are arranged at intervals on the outer ring wall of the collar 1910, and the scraping and sweeping blades 1920 are attached to the bottom of the bean grinding trough 1110, and the groove wall of the bean grinding trough 1110 is provided with a powder discharge port 1113 corresponding to the position of the powder sweeper 190. It can be understood that, because the collar 1910 is sleeved outside the rotating shaft 130, the collar 1910 can rotate with the rotating shaft 130, and because the scraping blades 1920 are arranged at intervals on the outer ring wall of the collar 1910, and because each scraping blade 1920 is attached to the bottom of the grinding bean trough 1110, when the collar 1910 rotates, the scraping blade 1920 scrapes the coffee powder that falls to the bottom of the grinding bean trough 1110. At the same time, because the powder discharge port 1113 is provided at a position of the groove wall of the grinding bean trough 1110 corresponding to the position of the powder sweeper 190, when the coffee powder is scraped and gathered by the scraping blade 1920, it can be discharged in a centralized manner through the powder discharge port 1113, which is convenient for users to collect coffee powder.

[0046] Combination Figure 1 As shown, in one embodiment, a bean inlet 1230 opposite to the bean outlet 1210 is provided on the bean bin 120, and a closure cover 1240 is provided on the bean inlet 1230, and the closure cover 1240 is magnetically connected to the end surface of the bean inlet 1230. It can be understood that by covering the closure cover 1240 on the bean inlet 1230, foreign matter can be effectively prevented from entering. Because the closure cover 1240 is magnetically connected to the end surface of the bean inlet 1230, the closure cover 1240 can be quickly disassembled to open the bean inlet 1230, so as to facilitate the pouring of coffee beans. Specifically, a plurality of first magnetic blocks 1231 are provided on the end surface of the bean inlet 1230, and a plurality of second magnetic blocks 1241 are provided on the cover edge of the closure cover 1240. When the closure cover 1240 is covered on the bean inlet 1230, each first magnetic block 1231 is magnetically connected to each second magnetic block 1241 one by one, so as to facilitate disassembly and assembly.

[0047] Combination Figure 4 As shown, in one embodiment, a first support arm 1120 and a second support arm 1130 are respectively provided on both sides of the grinder body 110, and the first support arm 1120 and the second support arm 1130 are respectively used to be connected to the opposite sides of the bottom plate 200 to support the grinder body 110 to be suspended on the bottom plate 200. It can be understood that because the grinder body 110 is suspended on the bottom plate 200, there is a gap between the grinder body 110 and the bottom plate 200, and the contact area is reduced. When the grinder body 110 is grinding, the vibration and noise transmitted to the bottom plate 200 are less, and the operating table will not be vibrated, which is more convenient to use.

[0048] Combination Figure 4As shown, the present disclosure further provides an electric coffee grinder 10, comprising a grinder grinding degree adjustment mechanism 100 of any of the above-mentioned embodiments. It can be understood that by applying the grinder grinding degree adjustment mechanism 100 of the present disclosure to the electric coffee grinder 10, the grinder adjustment bracket 160 can be lifted up smoothly as a whole through the elastic force between each abutment block 1630 and the corresponding lifting guide groove 1111, and at the same time, the grinder adjustment bracket 160 is pushed by the end surface of the bean outlet 1210 to overcome the drop in elastic force, and the forces on each force point of the grinder adjustment bracket 160 on the end surface of the notch of the bean grinding tank 1110 remain consistent, so that the grinder adjustment bracket 160 can be lifted up or put down smoothly as a whole, and is less likely to tilt, which can effectively improve the consistency of the coarseness of the ground coffee powder.

[0049] Compared with the prior art, the present invention has at least the following advantages:

[0050] 1) A plurality of lifting guide grooves 1111 are evenly spaced apart on the end surface of the notch of the bean grinding trough 1110. When the grinding degree adjustment bracket 160 is accommodated in the bean grinding trough 1110, the respective stop blocks 1630 protruding from the outer peripheral wall of the grinding degree adjustment bracket 160 are respectively disposed in the respective lifting guide grooves 1111 and elastically connected to the bottom of the corresponding lifting guide groove 1111, so that the grinding degree adjustment bracket 160 can be lifted and lowered in the bean grinding trough 1110 by elastic force. Because the bean outlet end of the bean bin 120 is screwed to the outer peripheral wall of the notch of the bean grinding tank 1110, and the end surface of the bean outlet 1210 abuts against the grinding degree adjustment bracket 160, the user can twist the bean bin 120 to make the end surface of the bean outlet 1210 push the grinding degree adjustment bracket 160 to move downward, so that the outer grinding disc 150 in the grinding degree adjustment bracket 160 descends relative to the inner grinding core 140, and then the inner grinding core 140 rises relatively in the grinding cavity 1510 of the outer grinding disc 150, or the user The end surface of the bean outlet 1210 can be moved upward by twisting the bean bin 120, and the grinding degree adjustment bracket 160 will be lifted upward by the elastic force, so that the outer grinding disc 150 in the grinding degree adjustment bracket 160 rises relative to the inner grinding core 140, and then the inner grinding core 140 is relatively lowered in the grinding cavity 1510 of the outer grinding disc 150, which can change the gap between the inner grinding core 140 and the grinding cavity 1510, and finally the grinding degree of the grinder grinding degree adjustment mechanism 100 can be adjusted, which is more convenient for users.

[0051] 2) Compared with the conical grinding mill in the prior art, the grinding degree adjustment mechanism 100 of the bean grinder above-mentioned forms a plurality of evenly dispersed force points between the end faces of the notch of the bean grinding tank 1110 by elastically connecting each stop block 1630 to the bottom of the corresponding lifting guide groove 1111, and the grinding degree adjustment bracket 160 can be lifted up smoothly as a whole through the elastic force between each stop block 1630 and the corresponding lifting guide groove 1111, and at the same time, the grinding degree adjustment bracket 160 is pushed to overcome the decrease of the elastic force through the abutment of the end face of the bean outlet 1210, and the force on each force point of the grinding degree adjustment bracket 160 on the end face of the notch of the bean grinding tank 1110 remains consistent, so that the grinding degree adjustment bracket 160 can be lifted up or put down smoothly as a whole, and is less likely to tilt, which can effectively improve the consistency of the coarseness of the ground coffee powder.

[0052] 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 grinding degree adjustment mechanism for a bean grinder, comprising a bean grinder body, a bean bin, a rotating shaft, an inner grinding core and an outer grinding disc; The bean grinder body is provided with a bean grinding trough, the outer grinding disc is arranged in the bean grinding trough; the rotating shaft is rotatably arranged at the bottom of the bean grinding trough, the inner grinding core is arranged on the rotating shaft and accommodated in the grinding cavity of the outer grinding disc; the bean bin is arranged on the bean grinder body, and the bean outlet end of the bean bin is connected to the notch of the bean grinding trough; It is characterized in that The grinder grinding degree adjustment mechanism also includes a grind degree adjustment bracket; A plurality of lifting guide grooves are evenly spaced on the end surface of the notch of the bean grinding trough, the outer grinding disc is arranged in the grinding degree adjustment bracket, and a plurality of stop blocks are convexly arranged on the outer peripheral wall of the grinding degree adjustment bracket; the grinding degree adjustment bracket is accommodated in the bean grinding trough, and each of the stop blocks is arranged in each of the lifting guide grooves one by one, and is elastically connected to the bottom of the corresponding lifting guide groove, so that the grinding degree adjustment bracket can be lifted and lowered relative to the bean grinding trough; The bean outlet end of the bean bin is screwed to the outer peripheral wall of the notch of the bean grinding trough, and a bean outlet is provided at the bean outlet end of the bean bin. The bean outlet is arranged opposite to the notch of the bean grinding trough, and the end surface of the bean outlet is in contact with the grinding degree adjustment bracket to push the outer grinding disc to rise and fall relative to the inner grinding core.

2. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 1, characterized in that: The lifting guide groove comprises a guide sliding cavity and a mounting cavity which are connected in sequence, the guide sliding cavity is close to the bean outlet, a lifting pressure spring is arranged in the mounting cavity, the abutment block is slidingly limited in the guide sliding cavity and pressed against the lifting pressure spring.

3. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 1, characterized in that: A connecting port and a grinding disc installation cavity are sequentially provided in the grinding degree adjustment bracket, the outer grinding disc is installed in the grinding disc installation cavity, the end surface of the bean outlet abuts against the end surface of the connecting port, and the bean outlet is connected to the grinding cavity of the outer grinding disc through the connecting port.

4. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 3, characterized in that: The end surface of the bean outlet is in contact with the end surface of the communication port through a thrust bearing, so that both ends of the thrust bearing are sealed at the bean outlet and the communication port respectively.

5. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 1, characterized in that: A graduated threaded sleeve is formed at the bean outlet end of the bean bin, the graduated threaded sleeve is sleeved on the outer peripheral wall of the bean outlet, the bean bin is threadedly connected to the outer peripheral wall of the notch of the bean grinding tank through the graduated threaded sleeve, and a grinding scale is provided on the outer surface of the graduated threaded sleeve.

6. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 1, characterized in that: The inner grinding core includes a threaded cover and a grinding head. The grinding head is sleeved on the transmission end of the rotating shaft and threadedly connected to the peripheral wall of the transmission end of the rotating shaft. The threaded cover is covered and screwed to the end of the transmission end of the rotating shaft to tighten the grinding head.

7. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 1, characterized in that: A drive installation cavity is also provided in the bean grinder body, and a rotary driver is arranged in the drive installation cavity. A rotary hole is provided at the bottom of the bean grinder tank, and the rotary hole is connected to the drive installation cavity. The rotary shaft is rotatably arranged in the rotary hole, and passes through the rotary hole to be connected to the rotary driving end of the rotary driver.

8. The grinding degree adjustment mechanism of the coffee bean grinder according to claim 1, characterized in that: A powder sweeper is also provided in the bean grinding trough, and the powder sweeper includes a sleeve ring and a plurality of scraping and sweeping blades. The sleeve ring is sleeved on the outside of the rotating shaft, and the scraping and sweeping blades are arranged on the outer ring wall of the sleeve ring at intervals, and the scraping and sweeping blades are attached to the bottom of the bean grinding trough. The wall of the bean grinding trough is provided with a powder discharge port corresponding to the position of the powder sweeper.

9. The grinding degree adjustment mechanism of a coffee bean grinder according to claim 1, characterized in that: The bean bin is provided with a bean inlet opposite to the bean outlet, and the upper cover of the bean inlet is provided with a closing cover, and the closing cover is magnetically connected to the end surface of the bean inlet.

10. An electric coffee grinder, characterized in that: A coffee bean grinder comprising the grinding degree adjustment mechanism of any one of claims 1 to 9.

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