CN216221246U

CN216221246U - Bean grinder

Info

Publication number: CN216221246U
Application number: CN202122702002.3U
Authority: CN
Inventors: 潘雄伟; 袁振兵; 杨毅
Original assignee: Zhongshan O Beko Electric Appliances Co ltd
Current assignee: Zhongshan O Beko Electric Appliances Co ltd
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-04-08
Anticipated expiration: 2031-11-06

Abstract

The utility model discloses a bean grinder. It includes host computer, drive arrangement and lower awl emery wheel, and drive arrangement fixes in the host computer, drive arrangement is equipped with the transmission shaft at the host computer top, is equipped with the shaft hole in the lower awl emery wheel, and the transmission shaft inserts in the shaft hole, and lower awl emery wheel top is equipped with the hand and twists the mounting, and the hand is twisted mounting and transmission shaft threaded connection and is fixed on the transmission shaft with lower awl emery wheel, and drive arrangement drives the rotation of lower awl emery wheel through the transmission shaft. The utility model has simple structure and reasonable design, and the lower cone grinding wheel can be taken out for cleaning by screwing out the hand to screw the fixing piece, thereby having sanitary and clean use. The elastic piece not only prevents the hand from twisting the fixed piece and loosening due to the vibration generated by the rotation of the transmission shaft, but also prevents foreign matters from entering between the transmission shaft and the host. Due to the design of the double sealing rings, the sealing effect is further improved better, and thus the use performance is not influenced by repeated disassembly and assembly of the lower cone grinding wheel. The first flat position and the second flat position enable the lower cone grinding wheel to be assembled and not prone to eccentricity and connected in a direct transmission mode, and stress of the hand-screwed fixing piece is reduced.

Description

Bean grinder

Technical Field

The utility model relates to the technical field of bean grinding machines.

Background

At present, the mill beans machine on the market all realizes the crocus through last emery wheel subassembly and lower emery wheel subassembly cooperation, but, the mill beans machine only goes up awl emery wheel subassembly and can dismantle the washing, but lower awl emery wheel subassembly can not dismantle, leads to the user after the use, and the remaining powder in the lower awl emery wheel the inside can only use special brush to stretch into the inside and remove the remaining powder of brushing down awl emery wheel the inside, washs very inconveniently. If the lower cone grinding wheel assembly is not cleaned, the residual powder in the lower cone grinding wheel assembly can go bad and moldy after being used for a long time, and the use is extremely unsafe.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bean grinder which is easy to clean.

The object of the utility model is thus achieved.

The utility model provides a bean grinder, includes host computer, drive arrangement and lower awl emery wheel, and drive arrangement fixes in the host computer, drive arrangement is equipped with the transmission shaft at the host computer top, is equipped with the shaft hole in the lower awl emery wheel, and in the transmission shaft inserted the shaft hole, lower awl emery wheel top was equipped with the hand and twists the mounting, and the hand is twisted mounting and transmission shaft threaded connection in order to fix the transmission shaft at the lower awl emery wheel is detachable, and drive arrangement passes through the transmission shaft and drives the rotation of lower awl emery wheel. The lower cone grinding wheel is simple to disassemble and easy to clean.

The technical scheme can be further perfected as follows.

More specifically, be equipped with the elastic component between hand is twisted mounting and the lower awl emery wheel, hand is twisted the mounting and is passed elastic component and transmission shaft threaded connection, and the elastic component both avoided hand to twist the mounting and not hard up because of the rotatory vibrations that produce of transmission shaft, prevented again that the foreign matter from getting into between transmission shaft and the host computer.

The main machine is characterized in that a mounting seat is arranged in the top of the main machine, the transmission shaft extends out of the top surface of the mounting seat, the lower cone grinding wheel is arranged on the mounting seat, and a sealing device is arranged between the lower cone grinding wheel and the mounting seat, so that the sealing performance of the lower cone grinding wheel and the mounting seat is improved.

The sealing device comprises a first sealing ring and a second sealing ring, a first sealing cavity and a second sealing cavity are formed between the lower cone grinding wheel and the mounting seat, the first sealing ring is arranged in the first sealing cavity, and the second sealing ring is arranged in the second sealing cavity. Due to the design of the double sealing rings, the sealing effect is better.

A first step is formed between the mounting seat and the main machine, a mounting groove is formed in the bottom surface of the lower cone grinding wheel, a second step is formed on the side wall of the mounting groove, and a first sealing cavity is formed by the space between the first step and the second step.

The top surface of the mounting seat is provided with a groove, the bottom of the lower cone grinding wheel extends into the groove to form a bulge, and the space between the bulge and the groove forms the second sealing cavity.

The transmission shaft penetrates through the mounting seat, a through hole is formed in the mounting seat, the top of the through hole is communicated with the groove, a third step is formed between the through hole and the groove, a bearing is arranged in the third step, and the transmission shaft sequentially penetrates through the bearing and the groove to extend out of the top surface of the mounting seat.

The first sealing ring is a felt sealing ring, the second sealing ring is a flat gasket, and the felt sealing ring is wear-resistant and has excellent elasticity.

The side face of the top of the transmission shaft is provided with a first flat position, a second flat position is arranged in a shaft hole of the corresponding lower cone grinding wheel, after the first flat position and the second flat position are aligned, the lower cone grinding wheel is sleeved on the transmission shaft in an inserting mode, the lower cone grinding wheel is assembled and is not prone to eccentricity and is connected in a direct transmission mode, and the stress of a hand-screwing fixing piece is reduced.

The utility model has simple structure and reasonable design, and the lower cone grinding wheel can be taken out for cleaning by screwing out the hand to screw the fixing piece, thereby having sanitary and clean use. The elastic piece not only prevents the hand from twisting the fixed piece and loosening due to the vibration generated by the rotation of the transmission shaft, but also prevents foreign matters from entering between the transmission shaft and the host. Due to the design of the double sealing rings, the sealing effect is further improved better, and thus the use performance is not influenced by repeated disassembly and assembly of the lower cone grinding wheel. The first flat position and the second flat position enable the lower cone grinding wheel to be assembled and not prone to eccentricity and connected in a direct transmission mode, and stress of the hand-screwed fixing piece is reduced.

Drawings

Fig. 1 is an exploded schematic view of a first embodiment.

Fig. 2 is a schematic cross-sectional view of a first embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic partial structure view of a transmission shaft according to an embodiment.

FIG. 5 is a schematic view of a lower cone grinding wheel according to one embodiment.

Detailed Description

The utility model is further described with reference to the following figures and examples.

First embodiment, referring to fig. 1 to 5, a bean grinding machine comprises a main machine 1, a driving device 2, a lower cone grinding wheel 3, a hand-screw fixing piece 4, an upper cone grinding wheel assembly 5 and a bean container 6. A fixing groove 11 is recessed in the top of the main machine 1, a powder outlet 10 is formed in one side of the fixing groove 11, and a mounting seat 12 is arranged on the bottom surface of the fixing groove 11. The top surface of the mounting seat 12 is provided with a groove 13, a through hole 14 is arranged in the mounting seat 12, the top of the through hole 14 is communicated with the groove 13, a third step 15 is formed between the through hole 14 and the groove 13, and a bearing 7 is arranged in the third step 15. The driving device 2 is fixed in the host 1, the driving device 2 is in transmission connection with the bottom of the transmission shaft 8, and the top of the transmission shaft 8 sequentially penetrates through the bearing 7 and the groove 13 to extend out of the top surface of the mounting seat 12. The lower cone grinding wheel 3 is detachably mounted on the transmission shaft 8, the upper cone grinding wheel assembly 5 and the bean container 6 are detachably and fixedly mounted in the fixing groove 11, and a bean grinding gap is formed between the lower cone grinding wheel 3 and the upper cone grinding wheel assembly 5. The driving device 2 is a motor, an output shaft of the motor can be integrally formed with the transmission shaft 8, or the output shaft of the motor is in transmission connection with the transmission shaft 8 through a speed reducing device or a coupler.

Wherein, the side of the top of the transmission shaft 8 is provided with a first flat position 81, and the top of the transmission shaft 8 is provided with a screw hole 82. Be equipped with shaft hole 31 in the lower cone emery wheel 3, be equipped with the flat position 32 of second in the shaft hole 31, first flat position 81 aligns the back with the flat position 32 of second, and the transmission connection is realized on transmission shaft 8 to the plug bush of lower cone emery wheel 3. The hand screw fixing member 4 is screwed with the shaft hole 31 of the drive shaft 8 to fix the lower bevel grinding wheel 3 to the drive shaft 8. Preferably, an elastic member 41 is disposed between the hand screw fixing member 4 and the lower cone grinding wheel 3, and the hand screw fixing member 4 is threaded to the transmission shaft 8 through the elastic member 41. The resilient member 41 may be integrally formed with the hand screw fastener 4, and preferably, the resilient member 41 is a spring washer. In the present invention, the hand-screwing fixture 4 is a screw having a handle portion 40 provided on a nut thereof, and a user can directly screw the screw by hand through the handle portion 40.

The lower cone grinding wheel 3 is arranged on the mounting seat 12, and a sealing device 9 is arranged between the lower cone grinding wheel 3 and the mounting seat 12. Specifically, a first step 16 is formed between the mounting seat 12 and the main machine 1, a mounting groove 30 is formed in the bottom surface of the lower cone-shaped grinding wheel 3, the mounting groove 30 is communicated with the shaft hole 31, a second step 33 is formed on the side wall of the mounting groove 30, and a first sealing cavity 91 is formed in the space between the first step 16 and the second step 33. The top surface of the mounting seat 12 is provided with a groove 13, the bottom of the lower cone-shaped grinding wheel 3 extends to form a protrusion 34 towards the inside of the groove 13, and a space between the protrusion 34 and the groove 13 forms a second sealing cavity 92. A first sealing ring 93 is arranged in the first sealing cavity 91, a second sealing ring 94 is arranged in the second sealing cavity 92, and the first sealing ring 93 and the second sealing ring 94 jointly form the sealing device 9. Preferably, the first sealing ring 93 is a felt sealing ring, i.e. a felt sealing ring, and the second step 33 abuts against the first sealing ring 93. The second seal ring 94 is a flat washer, and the second seal ring 94 blocks a gap between the bearing 7 and the third step 15.

When the bean grinder is used, beans (such as coffee beans) are put into the bean container 6, and the coffee beans enter the bean grinding gap. The driving device 2 drives the transmission shaft 8 to rotate, the transmission shaft 8 drives the lower cone-shaped grinding wheel 3 to rotate, so that coffee beans are ground into coffee powder, and the coffee powder flows out through the powder outlet 10.

After the bean grinding machine is used up, the lower bean container 6 and the upper cone grinding wheel assembly 5 are directly disassembled, the fixing part 4 is loosened by screwing the hand, the elastic part 41 and the lower cone grinding wheel 3 are taken out, and therefore the upper cone grinding wheel assembly 5 and the lower cone grinding wheel 3 can be cleaned. And after the lower cone grinding wheel 3 is taken out, the first sealing ring 93 can also be taken out, so that the fixed groove 11 is convenient to clean. After the bean grinder is cleaned, the first sealing ring 93 is sleeved on the mounting seat 12, the lower cone grinding wheel 3 is inserted on the transmission shaft 8, the mounting seat 12 is inserted into the mounting groove 30 of the lower cone grinding wheel 3, the second step 33 abuts against the first sealing ring 93, and the second sealing ring 94 is skillfully arranged between the protrusion 34 and the groove 13. Finally, the elastic piece 41 is placed, the hand loosening screwing fixing piece 4 penetrates through the elastic piece 41 and is inserted into the screw hole 82 to be screwed tightly, and the installation and the fixation of the lower cone grinding wheel 3 are realized.

Claims

1. The utility model provides a bean grinder, includes host computer, drive arrangement and lower awl emery wheel, and drive arrangement fixes in the host computer, characterized by, drive arrangement is equipped with the transmission shaft at the host computer top, is equipped with the shaft hole in the lower awl emery wheel, and the transmission shaft inserts in the shaft hole, and lower awl emery wheel top is equipped with the hand and twists the mounting, and the hand is twisted mounting and transmission shaft threaded connection in order to fix the lower awl emery wheel is detachable on the transmission shaft, and drive arrangement passes through the transmission shaft and drives the rotation of lower awl emery wheel.

2. The bean grinder as claimed in claim 1, wherein an elastic member is provided between the hand screw fixing member and the lower cone grinding wheel, and the hand screw fixing member is screwed to the transmission shaft through the elastic member.

3. The bean grinder of claim 1, wherein a mounting seat is provided in the top of the main body, the transmission shaft extends out of the top surface of the mounting seat, the lower cone-shaped grinding wheel is disposed on the mounting seat, and a sealing device is provided between the lower cone-shaped grinding wheel and the mounting seat.

4. The bean grinder of claim 3, wherein the sealing means includes a first seal ring and a second seal ring, the lower cone grinding wheel and the mounting seat defining a first seal chamber and a second seal chamber therebetween, the first seal ring being disposed in the first seal chamber, the second seal ring being disposed in the second seal chamber.

5. The bean grinder of claim 4, wherein a first step is formed between the mounting seat and the main frame, the bottom surface of the lower cone grinding wheel is provided with a mounting groove, the side wall of the mounting groove forms a second step, and the space between the first step and the second step forms the first sealing cavity.

6. The bean grinder of claim 4, wherein the top surface of the mounting seat is formed with a groove, the bottom of the lower cone grinding wheel extends into the groove to form a protrusion, and the space between the protrusion and the groove forms the second seal chamber.

7. The bean grinder of claim 6, wherein the mounting seat has a through hole, the top of the through hole is connected to the groove, a third step is formed between the through hole and the groove, a bearing is provided in the third step, and the transmission shaft extends out of the top surface of the mounting seat through the bearing and the groove in sequence.

8. The bean grinder of claim 4, wherein the first seal ring is a felt seal ring and the second seal ring is a flat washer.

9. The bean grinder of claim 1, wherein the top side of the transmission shaft is provided with a first flat position, the corresponding lower cone-shaped grinding wheel is provided with a second flat position in the shaft hole, and the lower cone-shaped grinding wheel is inserted and sleeved on the transmission shaft after the first flat position and the second flat position are aligned.