Bean grinding device of coffee machine

Abstract

The utility model belongs to the technical field of coffee bean grinding, and particularly relates to a bean grinding device of a coffee machine, which comprises a protective sleeve shell, a lap joint sleeve shell fixedly mounted on the inner side wall surface of the top of the protective sleeve shell, and a collecting cup movably lapped on the inner side wall surface of the bottom of the lap joint sleeve shell, the bean flour screening shell is detachably installed on the inner side wall face of the lap joint sleeve shell and located on the edge of the top of the collecting cup, and stretch yarns are fixedly connected to the inner side wall face of the bottom of the bean flour screening shell. According to the coffee bean grinding device, coffee beans are put into the grinding tank, the second closing cover is covered, the butt joint rod is connected to the top surface of the conical sleeve shell in a lap joint mode, then the position of the conical sleeve shell is limited, the conical sleeve shell is rotated through the motor, and the coffee beans are ground through centrifugal force generated when the conical sleeve shell rotates. The coffee beans are made to be attached to the inner side wall face of the grinding tank all the time and penetrate through the discharging groove opening to be leaked into the lap joint sleeve shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of coffee bean grinding, in particular to a bean grinding device for a coffee machine. Background Art

[0002] As people's living standards continue to improve, their tastes continue to improve, so they will use coffee machines with bean grinding functions. Coffee contains caffeine, which can stimulate the nerves, heart and respiratory system. Drinking a moderate amount of coffee can refresh the mind and reduce fatigue. In addition, caffeine also has a diuretic effect, which can promote the excretion of excess sodium ions in the kidneys and blood, and has certain benefits for the cardiovascular system.

[0003] At present, in the existing technology, a coffee bean grinder usually includes a feed hopper, a grinding assembly and a receiving funnel which are connected in sequence from top to bottom. After the coffee beans enter the feed hopper, they are ground by the grinding assembly to form powder which slides into the powder outlet device and falls into the receiving funnel. When the grinder is grinding the coffee beans, some of the coffee beans may not be ground thoroughly enough, and some coffee particles which are slightly larger than the coffee powder will be formed. These coffee particles will be blocked at the powder outlet, thereby preventing the subsequent coffee powder from passing through the powder outlet, thereby causing the coffee powder to be blocked inside the grinder.

[0004] To this end, the utility model provides a bean grinding device for a coffee machine. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a bean grinding device of a coffee machine described in the present invention comprises a protective sleeve and an overlapping sleeve fixedly mounted on the inner wall surface of the top of the protective sleeve, a collecting cup movably overlapped on the inner wall surface of the bottom of the overlapping sleeve, a collection groove is provided on the top surface of the overlapping sleeve, a bean powder screening shell detachably mounted on the inner wall surface of the overlapping sleeve and located at the top edge of the collecting cup, an elastic wire is fixedly connected to the inner wall surface of the bottom of the bean powder screening shell, a powder collecting box movably sleeved on the top surface of the elastic wire is fixedly connected, a recessed groove is provided on the top surface of the powder collecting box, and a screening sleeve is detachably mounted on the bottom surface of the powder collecting box and located in the middle position of the bean powder screening shell;

[0007] A motor is provided on the inner wall surface of the protective shell, a grinding jar is fixedly connected to the output end of the motor, an extension cylinder movably overlapped on the surface of the powder collecting box is provided on the bottom surface of the grinding jar, and a pushing cone thorn movably sleeved on the inner wall surface of the recessed groove is provided on the bottom surface of the extension cylinder.

[0008] Preferably, a small push motor is fixedly mounted on the top inner wall surface of the protective shell, and a support rod movably sleeved on the outer surface of the small push motor is provided on the outer surface of the protective shell.

[0009] Preferably, one end of the support rod is fixedly connected to the outer surface of the motor.

[0010] Preferably, a second closing cover movably overlapped on the top surface of the grinding jar is fixedly connected to the bottom surface of the motor, and a docking rod is fixedly connected to the bottom surface of the second closing cover.

[0011] Preferably, a conical sleeve is provided on the inner wall surface of the grinding jar and is movably sleeved on the outer surface of the docking rod, and a discharge slot is provided on the outer surface of the grinding jar.

[0012] Preferably, a closing cover is movably sleeved on the outer surface of the protective sleeve, and a collecting cavity is provided between the collecting groove and the grinding tank.

[0013] Preferably, staggered limiting cylinders are fixedly connected to the inner wall surface of the bean powder screening shell and the bottom surface of the powder collecting box, and a diversion chute is provided on the top surface of the powder collecting box.

[0014] The beneficial effects of the utility model are as follows:

[0015] The coffee beans are ground into the grinding jar and the coffee beans are separated by a grinding machine, and the coffee beans are ground into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine. The coffee beans are ground into the grinding jar by the grinding machine, and the coffee beans are separated into the grinding jar by the grinding machine.

[0016] 2. The bean grinding device of the coffee machine described in the present invention, when the motor rotates the grinding tank, the pushing cone thorns on the bottom surface of the grinding tank are in staggered contact with the concave groove on the top surface of the powder collecting box. When the pushing cone thorns spread and slide to the top surface of the powder collecting box, the surface of the pushing cone thorns will press the powder collecting box downward, and then elastically compress the elastic wire on the bottom surface of the powder collecting box. As the grinding tank continuously slides and squeezes the extension cylinder, the surface of the pushing cone thorns will coincide with the inner wall of the concave groove. At this time, the top of the powder collecting box is no longer limited by the position of the pushing cone thorns. Under the reverse push of the elastic wire, the top surface of the powder collecting box The concave groove on the screen will overlap with the pushing cone very quickly. The instantaneous impact force generated when the powder collecting box and the extension tube overlap will vibrate the coffee powder inside the screening sleeve up and down, thereby vibrating and penetrating the fine coffee powder accumulated inside the screening sleeve. Combined with the high-speed rotation of the powder collecting box and the grinding tank, the coffee powder inside the screening sleeve is always in high-frequency vibration, so that the fine coffee powder will pass through the screening sleeve, and some fine coffee particles will be in a jumping state inside the screening sleeve, so that the particles will not stay inside the screening sleeve, thereby causing clogging of the holes on the surface of the screening sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the protective shell in the present utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded three-dimensional structure of the protective shell in the utility model;

[0021] Figure 4 This is a schematic diagram of the expanded cross-sectional three-dimensional structure of the protective shell in the utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional structure of the bean powder screening shell in the utility model;

[0023] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the overlapped casing in the utility model.

[0024] In the figure: 11, protective shell; 111, closing cover 1; 112, small push motor; 113, support rod; 114, motor; 115, closing cover 2; 116, docking rod; 117, conical shell; 118, grinding jar; a1, extension cylinder; a2, pushing cone; 119, collecting chamber; 1110, discharge slot; 12, collecting cup; 13, bean powder screening shell; 131, elastic wire; 132, powder collecting box; 133, recessed groove; 134, diversion chute; 135, screening sleeve; 136, staggered limit cylinder; 14, overlapping shell; 141, shrinkage groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figures 1 to 6 As shown, a bean grinding device of a coffee machine according to an embodiment of the present invention comprises a protective shell 11 and an overlapping shell 14 fixedly mounted on the top inner wall of the protective shell 11, a collecting cup 12 movably overlapped on the bottom inner wall of the overlapping shell 14, a collecting groove 141 is provided on the top surface of the overlapping shell 14, a bean powder screening shell 13 detachably mounted on the inner wall of the overlapping shell 14 and located at the top edge of the collecting cup 12, an elastic wire 131 is fixedly connected to the bottom inner wall of the bean powder screening shell 13, a powder collecting box 132 movably sleeved on the inner wall of the bean powder screening shell 13 is fixedly connected to the top surface of the elastic wire 131, a concave groove 133 is provided on the top surface of the powder collecting box 132, and a screening sleeve 135 is detachably mounted on the bottom surface of the powder collecting box 132 and located in the middle position of the bean powder screening shell 13;

[0027] A motor 114 is provided on the inner wall of the protective housing 11. A grinding tank 118 is fixedly connected to the output end of the motor 114. An extension tube a1 is provided on the bottom surface of the grinding tank 118 and is movably connected to the surface of the powder collecting box 132. A pushing spike a2 is provided on the bottom surface of the extension tube a1 and is movably connected to the inner wall of the recessed groove 133.

[0028] The ground coffee powder will enter the interior of the powder collecting box 132, and cooperate with the screening sleeve 135 on the bottom surface of the powder collecting box 132 to collect the coffee powder together. When the motor 114 rotates the grinding tank 118, the pushing cone thorns a2 on the bottom surface of the grinding tank 118 will come into contact with the recessed grooves 133 on the top surface of the powder collecting box 132. When the pushing cone thorns a2 spread and slide to the top surface of the powder collecting box 132, the surface of the pushing cone thorns a2 will press down the powder collecting box 132, and then elastically compress the elastic wire 131 on the bottom surface of the powder collecting box 132. As the grinding tank 118 continues to slide and squeeze the extension tube a1, the surface of the pushing cone thorns a2 will coincide with the inner wall of the recessed groove 133. At this time, there is no pushing cone thorn a2 at the top of the powder collecting box 132. It is limited that, under the reverse push of the elastic wire 131, the concave groove 133 on the top surface of the powder collecting box 132 will overlap with the pushing cone a2 very quickly. The instantaneous impact force generated when the powder collecting box 132 and the extension tube a1 overlap will vibrate the coffee powder inside the screening sleeve 135 up and down, and then vibrate and penetrate the fine coffee powder accumulated inside the screening sleeve 135. Combined with the high-speed rotation of the powder collecting box 132 in the grinding tank 118, the coffee powder inside the screening sleeve 135 is always in high-frequency vibration, so that the fine coffee powder will pass through the screening sleeve 135, and some fine coffee particles will be in a jumping state inside the screening sleeve 135, so that the particles will not stay inside the screening sleeve 135, thereby causing a clogging effect on the holes on the surface of the screening sleeve 135.

[0029] like Figures 1 to 6 As shown, a small push motor 112 is fixedly installed on the inner wall surface of the top of the protective shell 11, and a support rod 113 that is movably sleeved on the outer surface of the small push motor 112 is provided on the outer surface of the protective shell 11. One end of the support rod 113 is fixedly connected to the outer surface of the motor 114. A closing cover 115 that is movably overlapped on the top surface of the grinding jar 118 is fixedly connected to the bottom surface of the motor 114. A docking rod 116 is fixedly connected to the bottom surface of the closing cover 115. The grinding jar 118 is fixedly connected to the bottom surface of the grinding jar 118. A conical sleeve 117 is provided on the inner wall of the soy powder screening shell 13 and is movably connected to the outer surface of the docking rod 116. A discharge notch 1110 is provided on the outer surface of the grinding tank 118. A closing cover 111 is movably connected to the outer surface of the protective shell 11. A collecting chamber 119 is provided between the collecting groove 141 and the grinding tank 118. Staggered limiting cylinders 136 are fixedly connected to the inner wall of the soy powder screening shell 13 and the bottom surface of the powder collecting box 132. A diversion chute 134 is provided on the top surface of the powder collecting box 132.

[0030] The coffee beans are placed into the grinding jar 118, and the closing cover 115 is closed to overlap the docking rod 116 on the top surface of the conical sleeve 117, thereby limiting the position of the conical sleeve 117. The conical sleeve 117 is then rotated by the motor 114. The centrifugal force generated by the conical sleeve 117 during rotation is utilized to ensure that the coffee beans always adhere to the inner wall of the grinding jar 118 and leak into the interior of the overlapping sleeve 14 through the discharge slot 1110. The rotation of the motor 114 causes the friction between the motor 114 and the grinding jar 118 to grind the coffee beans, and the ground fine powder enters the interior of the bean powder screening shell 13. The powder collecting box 132 rotates at high speed in the grinding jar 118. The coffee powder inside the screening sleeve 135 is always in high-frequency vibration, so that the fine coffee powder will pass through the screening sleeve 135, and some small coffee particles will be in a jumping state inside the screening sleeve 135, so that the particles will not stay inside the screening sleeve 135, thereby causing clogging of the holes on the surface of the screening sleeve 135. After the coffee beans are ground, the small push motor 112 is used to lift the support rod 113, and the grinding tank 118 is peeled off from the inside of the overlapping shell 14, and the grinding tank 118 is separated from the surface of the docking rod 116. The coffee beans and coffee powder remaining in the grinding tank 118 are cleaned, and then the coffee particles remaining in the screening sleeve 135 are cleaned.

[0031] Working principle: put coffee beans into the grinding tank 118, cover the closing cover 115, overlap the docking rod 116 on the top surface of the conical shell 117, and then limit the position of the conical shell 117. Then, the motor 114 rotates the conical shell 117, and the centrifugal force generated by the rotation of the conical shell 117 is used to make the coffee beans always stick to the inner wall of the grinding tank 118, and pass through the discharge slot 1110 to leak into the interior of the overlapping shell 14. Then, with the rotation of the motor 114, the motor 114 and The friction between the grinding jars 118 grinds the coffee beans, and the ground fine powder enters the interior of the bean powder screening shell 13. In combination with the high-speed rotation of the powder collecting box 132, the coffee powder inside the screening sleeve 135 is always in high-frequency vibration, so that the fine coffee powder passes through the screening sleeve 135, and some fine coffee particles are in a jumping state inside the screening sleeve 135, so that the particles will not stay inside the screening sleeve 135, thereby causing the holes on the surface of the screening sleeve 135 to be blocked.

[0032] The ground coffee powder will enter the interior of the powder collecting box 132, and cooperate with the screening sleeve 135 on the bottom surface of the powder collecting box 132 to collect the coffee powder together. When the motor 114 rotates the grinding tank 118, the pushing cone thorns a2 on the bottom surface of the grinding tank 118 will come into contact with the recessed grooves 133 on the top surface of the powder collecting box 132. When the pushing cone thorns a2 spread and slide to the top surface of the powder collecting box 132, the surface of the pushing cone thorns a2 will press down the powder collecting box 132, and then elastically compress the elastic wire 131 on the bottom surface of the powder collecting box 132. As the grinding tank 118 continues to slide and squeeze the extension tube a1, the surface of the pushing cone thorns a2 will coincide with the inner wall of the recessed groove 133. At this time, there is no pushing cone thorn a2 at the top of the powder collecting box 132. It is limited that, under the reverse push of the elastic wire 131, the concave groove 133 on the top surface of the powder collecting box 132 will overlap with the pushing cone a2 very quickly. The instantaneous impact force generated when the powder collecting box 132 and the extension tube a1 overlap will vibrate the coffee powder inside the screening sleeve 135 up and down, and then vibrate and penetrate the fine coffee powder accumulated inside the screening sleeve 135. Combined with the high-speed rotation of the powder collecting box 132 in the grinding tank 118, the coffee powder inside the screening sleeve 135 is always in high-frequency vibration, so that the fine coffee powder will pass through the screening sleeve 135, and some fine coffee particles will be in a jumping state inside the screening sleeve 135, so that the particles will not stay inside the screening sleeve 135, thereby causing a clogging effect on the holes on the surface of the screening sleeve 135.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A bean grinding device for a coffee machine, comprising a protective housing (11) and a lap housing (14) fixedly mounted on the inner wall surface of the top of the protective housing (11), a collecting cup (12) movably lapped on the inner wall surface of the bottom of the lap housing (14), a collecting groove (141) being provided on the top surface of the lap housing (14), and a bean powder screening shell (13) detachably mounted on the inner wall surface of the lap housing (14) and located at the top edge of the collecting cup (12), characterized in that: An elastic wire (131) is fixedly connected to the inner wall surface of the bottom of the bean powder screening shell (13); a powder collecting box (132) movably sleeved on the inner wall surface of the bean powder screening shell (13) is fixedly connected to the top surface of the elastic wire (131); a recessed groove (133) is provided on the top surface of the powder collecting box (132); and a screening sleeve (135) is detachably mounted on the bottom surface of the powder collecting box (132) and located in the middle of the bean powder screening shell (13); A motor (114) is provided on the inner wall surface of the protective shell (11), a grinding jar (118) is fixedly connected to the output end of the motor (114), an extension tube (a1) movably overlapped on the surface of the powder collecting box (132) is provided on the bottom surface of the grinding jar (118), and a pushing cone (a2) movably sleeved on the inner wall surface of the recessed groove (133) is provided on the bottom surface of the extension tube (a1).

2. The bean grinding device of a coffee machine according to claim 1, characterized in that: A small propulsion motor (112) is fixedly mounted on the top inner wall of the protective shell (11), and a support rod (113) movably sleeved on the outer surface of the small propulsion motor (112) is provided on the outer surface of the protective shell (11).

3. The bean grinding device of a coffee machine according to claim 2, characterized in that: One end of the support rod (113) is fixedly connected to the outer surface of the motor (114).

4. The bean grinding device of a coffee machine according to claim 3, characterized in that: A second closing cover (115) movably overlapped on the top surface of the grinding jar (118) is fixedly connected to the bottom surface of the motor (114), and a docking rod (116) is fixedly connected to the bottom surface of the second closing cover (115).

5. The bean grinding device of a coffee machine according to claim 4, characterized in that: The inner wall surface of the grinding jar (118) is provided with a conical sleeve (117) that is movably sleeved on the outer surface of the docking rod (116), and the outer surface of the grinding jar (118) is provided with a discharge notch (1110).

6. The bean grinding device of a coffee machine according to claim 1, characterized in that: A closing cover (111) is movably sleeved on the outer surface of the protective sleeve (11), and a material collecting cavity (119) is provided between the collecting groove (141) and the grinding jar (118).

7. The bean grinding device of a coffee machine according to claim 1, characterized in that: Staggered limiting cylinders (136) are fixedly connected to the inner wall surface of the bean powder screening shell (13) and the bottom surface of the powder collecting box (132), and a diversion chute (134) is provided on the top surface of the powder collecting box (132).

Images