Combined disassembly and assembly type grinding assembly and coffee bean grinder

Abstract

The utility model provides a combined disassembly and assembly type grinding assembly and a coffee bean grinder. The combined disassembly and assembly type grinding assembly comprises a barrel, a grinding core assembly, a grinding disc and an inner container. The grinding core assembly and the grinding disc are both arranged in the barrel and connected to the inner barrel wall of the barrel. The inner container is arranged in the barrel and detachably connected to the inner barrel wall of the barrel. A rotating cavity and a mounting cavity which are communicated are formed in the inner container, the grinding core assembly comprises a grinding head and a rotating shaft, the grinding disc is arranged in the mounting cavity, and a grinding cavity is formed in the grinding disc; the rotating shaft penetrates through the rotating cavity and is rotationally connected to the cavity wall of the rotating cavity; the end part of the rotating shaft in the grinding cavity is a transmission end; the grinding head is arranged in the grinding cavity and connected with the transmission end. According to the combined disassembly and assembly type grinding assembly, the grinding core assembly and the grinding disc are integrated in the inner container, the structure is compact, disassembly, washing and reassembly can be completed at a time, the situation of wrong assembly or neglected assembly is avoided, and the installation efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee bean grinding, and in particular to a combined detachable grinding assembly and a coffee bean grinder. Background Art

[0002] The rise of coffee culture has made coffee consumption more and more popular, and coffee has gradually become a necessity for many people. Before brewing coffee, coffee beans usually need to be ground into coffee powder by a coffee bean grinder. The fine coffee powder is easily adsorbed on the grinding core, grinding disc and other parts in the barrel of the coffee bean grinder. The barrel of the coffee bean grinder is long and the grinding core, grinding disc and other parts have complex structures. Direct cleaning is prone to many sanitary dead corners. The deterioration of the residual coffee powder will seriously affect the subsequent taste and flavor of the coffee. In response to this, some manufacturers have conducted further research and development.

[0003] For example, Chinese patent document CN210204514U discloses a hand-cranked coffee grinder, including a grinding cylinder, a powder bin and a hand-cranked assembly. The grinding cylinder includes a cylinder cover, a cylinder body, a shaft assembly and a grinding assembly arranged in the cylinder body, the shaft assembly includes a shaft and a first fixing member mounted on the shaft, a shaft bracket and a second fixing member; the shaft bracket includes an inner ring, an outer ring and a plurality of spokes connecting the inner ring and the outer ring, the gaps between adjacent spokes form a feed hole, the inner ring is provided with a bearing adapted to the shaft, and the outer ring is screwed to the middle section of the inner cavity of the cylinder body by a threaded manner; the first fixing member and the second fixing member are respectively located at the upper and lower ends of the shaft bracket, and are used to limit the axial freedom of the shaft on the shaft bracket.

[0004] However, the design of the above-mentioned hand-cranked grinder has the following problems:

[0005] Although the hand-cranked grinder can be cleaned by removing the grinding core, grinding disc and other components from the cylinder, the grinding core, grinding disc and other components are independently detachably connected to the inner wall of the cylinder, and the structure between the grinding core, grinding disc and other components is loose. After being removed from the cylinder, the installation process is cumbersome, and it is easy to be wrongly installed or missed, and the installation efficiency is low. At the same time, repeated disassembly and assembly are also easy to cause wear of the grinding core, grinding disc and other components, resulting in differences in each assembly and poor precision. As the wear gradually increases, the concentricity of the assembly of the grinding core, grinding disc and other components will become worse and worse, seriously affecting the use. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a combined detachable grinding assembly and a coffee bean grinder that is easy to disassemble and clean and quick to install.

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

[0008] A combined detachable grinding assembly comprises a barrel, a grinding core assembly and a grinding disc; the grinding core assembly and the grinding disc are both arranged in the barrel and connected to the inner barrel wall of the barrel;

[0009] The combined and detachable grinding assembly also includes an inner container;

[0010] The inner liner is arranged in the cylinder body and is detachably connected to the inner cylinder wall of the cylinder body, and a rotating chamber and an installation chamber that are connected are formed in the inner liner; the grinding core assembly includes a grinding head and a rotating shaft, the grinding disc is arranged in the installation chamber, and the grinding disc forms a grinding chamber; the rotating shaft passes through the rotating chamber and is rotatably connected to the chamber wall of the rotating chamber; the end of the rotating shaft in the grinding chamber is a transmission end, and the grinding head is arranged in the grinding chamber and connected to the transmission end.

[0011] In one embodiment, the inner liner is snap-connected or screw-connected to the inner wall of the cylinder.

[0012] In one of the embodiments, a limiting step is convexly provided on the inner wall of the cylinder body, and a pressing boss is provided on the peripheral wall of the inner container, and the pressing boss can abut against the limiting step.

[0013] In one of the embodiments, the limiting step is arranged in an annular shape along the peripheral wall of the inner tank, and the abutting surface of the limiting step is provided with a positioning protrusion in the vertical direction; the pressing boss is arranged in an annular shape along the inner cylinder wall of the cylinder body, and the pressing boss is recessed in the vertical direction to form a limiting groove; the limiting groove can be adaptably connected with the positioning protrusion.

[0014] In one of the embodiments, a ball plunger is provided on the peripheral wall of the inner pot near the bottom of the limiting groove, and a vertical alignment slide rail is provided on the inner wall of the cylinder body. The inlet end of the vertical alignment slide rail extends out of the edge of the bean inlet of the cylinder body, and the end of the vertical alignment slide rail extends to the top position of the positioning protrusion, and the ball plunger can slide along the vertical alignment slide rail.

[0015] In one embodiment, the combined and detachable grinding assembly also includes a grinding degree adjustment assembly; the grinding degree adjustment assembly includes a compression spring, a scale gasket and a knob; the grinding head is provided with a lifting slide hole, the transmission end is inserted into the lifting slide hole, the compression spring is sleeved outside the rotating shaft and is compressed between the inner tank and the grinding head; the knob is screwed to the end of the transmission end, the scale gasket is provided between the grinding head and the knob, the scale gasket is clamped to the grinding head, and a plurality of positioning grooves are provided on the side facing the knob; each positioning groove is arranged in an annular shape, and adjacent positioning grooves are connected to form an adjustment slide rail, the knob is provided with an adjustment plunger on the adjustment slide rail, and the adjustment plunger can be switched between adjacent positioning grooves to push the grinding head to rise and fall in the grinding chamber.

[0016] In one embodiment, the combined and detachable grinding assembly also includes a bean bin, the cylinder is provided with a bean inlet connected to the bean bin, the rotating shaft extends a driving end into the bean bin, a transmission shaft is rotatably arranged in the bean bin, the transmission shaft is provided with a slot opposite to an end of the driving end, and the transmission shaft is detachably connected to the driving end through the slot.

[0017] In one of the embodiments, the driving end of the rotating shaft is also sleeved with a hanging plate, a mounting beam is horizontally placed in the bean bin, a mounting hole is opened on the mounting beam, the transmission shaft is rotatably and lifted in the mounting hole, a hook is provided on the side of the mounting beam close to the inner tank, the hook is sleeved on the first end of the transmission shaft and clamped on the edge of the hanging plate, and a grinding degree adjustment knob is provided on the side of the mounting beam away from the inner tank, and the grinding degree adjustment knob is screwed on the second end of the transmission shaft to drive the transmission shaft to rise and fall in the mounting hole.

[0018] In one of the embodiments, the driving end of the rotating shaft is also sleeved with a hanging plate, the bean bin includes a rotating adjustment ring, a mounting beam, a transmission shaft and a bin body, the bean outlet of the bin body is embedded in the bean inlet of the cylinder, the mounting beam is horizontally placed in the bin body, a mounting hole is opened on the mounting beam, the transmission shaft is rotatably raised and lowered in the mounting hole, the mounting beam is provided with a hook on a side close to the inner tank, the hook is sleeved on the outside of the transmission shaft and clamped on the edge of the hanging plate; the rotating adjustment ring is sleeved on the outside of the bin body and is threadedly screwed to the outer peripheral wall of the bin body to rotationally adjust the bin body to rise and fall.

[0019] A coffee bean grinder comprises the combined and detachable grinding assembly of any one of the above embodiments.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] 1) Because the inner tank is provided with a connected rotating chamber and an installation chamber, by setting the grinding disc in the installation chamber, the rotating shaft is rotatably connected to the rotating chamber, and the grinding head is connected through the transmission end of the rotating shaft, so that the grinding head can be set in the grinding chamber of the grinding disc to perform grinding operations, and the inner tank and the inner cylinder wall of the cylinder are detachably connected. When it is necessary to disassemble the grinding core assembly and the grinding disc and other components, the grinding core assembly and the grinding disc can be removed from the cylinder at one time through the inner tank. When it is necessary to reinstall, the grinding core assembly and the grinding disc can also be installed into the cylinder at one time through the inner tank, which is convenient and quick to install. Compared with the hand-cranked coffee bean grinders in the prior art, the above-mentioned combined detachable grinding assembly integrates the grinding core assembly and the grinding disc and other components with complex structures into one body by installing the grinding core assembly and the grinding disc and other components in the inner tank. The structure is compact, and the disassembly and reinstallation process can be completed at one time, avoiding the situation of wrong installation or missing installation, and the installation efficiency is higher. At the same time, after the grinding core assembly and grinding disc and other structures are integrated into the inner tank, the grinding core assembly and the grinding disc do not need to be disassembled during the disassembly and assembly process, which will not affect the concentricity of the grinding core assembly and the grinding disc, and can ensure the stability of grinding.

[0022] 2) By installing the inner tank into the cylinder with different appearances and / or capacities, the above-mentioned combined detachable grinding assembly can be switched between different appearances or capacities, and the cylinders with different appearances or capacities can meet the needs of different usage occasions. Users can assemble different types of coffee bean grinders by only purchasing multiple cylinders, which reduces the economic burden of purchasing a complete coffee bean grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 A cross-sectional view of a combined and disassembled grinding assembly according to an embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 The cross-sectional structure diagram of the combined detachable grinding assembly shown;

[0026] Figure 3 is a cross-sectional view of a combined and disassembled grinding assembly according to another embodiment of the present disclosure;

[0027] Figure 4 for Figure 1 The structural schematic diagram of the grinding degree adjustment assembly of the combined detachable grinding assembly shown;

[0028] Figure 5 It is a structural schematic diagram of a bean bin of a combined and detachable grinding assembly according to another embodiment of the present disclosure;

[0029] Figure 6 for Figure 5 A cross-sectional view of the bean bin of the combined detachable grinding assembly shown in the installation state;

[0030] Figure 7 It is a structural schematic diagram of a bean bin of a combined and detachable grinding assembly according to another embodiment of the present disclosure;

[0031] Figure 8 for Figure 7 A cross-sectional view of the bean bin of the combined detachable grinding assembly shown in the installation state;

[0032] Fig. 9 The figure is a cross-sectional structural diagram of a coffee bean grinder according to an embodiment of the present disclosure.

[0033] Reference numerals: 10, coffee bean grinder; 100, assembled and disassembled grinding assembly; 110, barrel; 1110, limiting step; 1111, positioning convex portion; 111a, supporting table; 111b, limiting side; 1112, vertical alignment slide rail; 111c, connecting groove; 1113, anti-slip texture; 1114, lifting groove; 111d, lifting spring; 120, grinding core assembly; 121 0, grinding head; 1211, lifting slide hole; 1220, rotating shaft; 1221, transmission end; 1222, driving end; 1223, hanging plate; 130, grinding disc; 1310, grinding chamber; 140, liner; 1410, rotating chamber; 1411, first placement groove; 1412, second placement groove; 141a, top bearing; 141b, bottom bearing; 1420, installation chamber; 1421, Support ring; 1430, buckling boss; 1431, limiting groove; 1432, ball plunger; 143a, wedge-shaped guide groove; 1433, positioning slide block; 1440, bean passage; 1450, mounting groove; 1460, pressing slide groove; 1461, limiting slide groove; 1470, pressing slide block; 1471, limiting convex ridge; 150, grinding degree adjustment component; 1510, compression spring; 152 0, scale gasket; 1521, adjustment rail; 152a, positioning slot; 1522, grinding value; 1530, knob; 1531, adjustment plunger; 160, bean bin; 1610, mounting beam; 1611, mounting hole; 1620, transmission shaft; 1621, slot; 1630, bin body; 1640, grinding adjustment knob; 1650, rotating adjustment ring; 1660, hook. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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:

[0038] like Figure 1 As shown, a combined detachable grinding assembly 100 of an embodiment includes a barrel 110, a grinding core assembly 120, a grinding disc 130 and an inner liner 140; the grinding core assembly 120 and the grinding disc 130 are both arranged in the barrel 110 and connected to the inner barrel wall of the barrel 110; the inner liner 140 is arranged in the barrel 110 and detachably connected to the inner barrel wall of the barrel 110; a rotating chamber 1410 and an installation chamber 1420 that are connected to each other are formed in the inner liner 140, The grinding core assembly 120 includes a grinding head 1210 and a rotating shaft 1220. The grinding disc 130 is arranged in the installation cavity 1420, and the grinding disc 130 forms a grinding cavity 1310; the rotating shaft 1220 passes through the rotating cavity 1410 and is rotatably connected to the cavity wall of the rotating cavity 1410; the end of the rotating shaft 1220 in the grinding cavity 1310 is the transmission end, and the grinding head 1210 is arranged in the grinding cavity 1310 and is connected to the transmission end 1221.

[0039] It can be understood that because the inner liner 140 is provided with a connected rotating chamber 1410 and an installation chamber 1420, by setting the grinding disc 130 in the installation chamber 1420, the rotating shaft 1220 is rotatably connected to the rotating chamber 1410, and the grinding head 1210 is connected through the transmission end 1221 of the rotating shaft 1220, so that the grinding head 1210 can be set in the grinding chamber 1310 of the grinding disc 130 for grinding operations, and the inner liner 140 and the inner cylinder wall of the cylinder 110 are detachably connected. When it is necessary to disassemble the grinding core assembly 120 and the grinding disc 130 and other components, the grinding core assembly 120 and the grinding disc 130 can be removed from the cylinder 110 at one time through the inner liner 140. When it is necessary to reinstall, the grinding core assembly 120 and the grinding disc 130 can also be installed into the cylinder 110 at one time through the inner liner 140, and the installation is convenient and quick. Compared with the hand-cranked coffee bean grinders in the prior art, the above-mentioned combined detachable grinding assembly 100 integrates the grinding core assembly 120 and the grinding disc 130 and other components with complex structures into one body by installing the grinding core assembly 120 and the grinding disc 130 and other components in the inner tank 140, and has a compact structure. The disassembly, cleaning and reassembly processes can be completed at one time, avoiding the occurrence of wrong installation or missing installation, and the installation efficiency is higher. At the same time, after the grinding core assembly 120 and the grinding disc 130 and other structures are integrated into the inner tank 140, the grinding core assembly 120 and the grinding disc 130 do not need to be disassembled during the disassembly process, avoiding the traditional assembly problem of poor concentricity of the grinding core assembly 120 and the grinding disc 130 during repeated disassembly and assembly. The above-mentioned combined detachable grinding assembly 100 can ensure the stability and grinding accuracy of grinding.

[0040] It can be understood that the above-mentioned combined detachable grinding assembly 100 can be switched between different appearances or capacities by installing the inner tank 140 into the cylinder 110 of different appearances and capacities, and the cylinder 110 of different appearances or capacities can match the needs of different use occasions. The user can assemble different types of coffee bean grinders 10 by only purchasing multiple cylinders 110, which reduces the economic burden of purchasing the entire coffee bean grinder 10.

[0041] In one embodiment, the shaft wall of the rotating shaft 1220 is connected to the cavity wall of the rotating chamber 1410 through a bearing, the inner ring of the bearing is sleeved and fixed on the shaft wall of the rotating shaft 1220, and the outer ring of the bearing is fixedly connected to the cavity wall of the rotating chamber 1410. It can be understood that the rotating shaft 1220 can be rotated in the rotating chamber 1410 through the relative rotation of the inner ring of the bearing and the outer ring of the bearing, and the inner liner 140 will not be driven to rotate when the rotating shaft 1220 rotates, so that the rotating shaft 1220 can smoothly drive the grinding head 1210 to rotate in the grinding chamber 1310 to perform grinding operations. In this embodiment, a first receiving groove 1411 and a second receiving groove 1412 are provided on the cavity wall of the rotating cavity 1410. The first receiving groove 1411 is provided at the top end of the rotating cavity 1410, and the second receiving groove 1412 is provided at the bottom end of the rotating cavity 1410. The bearing includes a top bearing 141a and a bottom bearing 141b. The top bearing 141a is installed in the first receiving groove 1411, and the bottom bearing 141b is installed in the second receiving groove 1412. A gap is provided between the shaft wall of the rotating shaft 1220 and the cavity wall of the rotating cavity 1410. It can be understood that the rotating shaft 1220 is rotatably connected to the top end of the rotating chamber 1410 through the top bearing 141a, and the rotating shaft 1220 is rotatably connected to the bottom end of the rotating chamber 1410 through the bottom bearing 141b, so that two supporting points are formed between the shaft wall of the rotating shaft 1220 and the cavity wall of the rotating chamber 1410. The supporting action of the top bearing 141a and the bottom bearing 141b can form a gap between the shaft wall of the rotating shaft 1220 and the cavity wall of the rotating chamber 1410, thereby preventing the rotating shaft 1220 from rubbing against the cavity wall of the rotating chamber 1410 and wearing during rotation, thereby reducing rotation resistance and improving transmission efficiency.

[0042] In one embodiment, a support ring 1421 is further screwed on the inner liner 140, the edge of the support ring 1421 protrudes from the bottom of the installation cavity 1420, and the bottom of the grinding disc 130 is pressed against the edge of the support ring 1421. It can be understood that the grinding disc 130 is pressed against and supported by the edge of the support ring 1421, and the grinding disc 130 is pressed in the installation cavity 1420 by the support ring 1421, which can prevent the grinding disc 130 from shaking during the grinding process and causing abnormal noise, thereby improving the convenience of use.

[0043] In one embodiment, the inner liner 140 is snap-fitted or screwed to the inner wall of the cylinder 110. It is understood that by screwing or snapping the inner liner 140 to the inner wall of the cylinder 110, the inner liner 140 and the cylinder 110 can be easily disassembled. Specifically, the peripheral wall of the inner liner 140 is provided with an external thread, and the inner wall of the cylinder 110 is provided with an internal thread, and the internal thread can be matched with the external thread. It is understood that the assembly can be performed by matching the external thread with the internal thread, and the disassembly can be performed by rotating the external thread out of the internal thread.

[0044] Combination Figure 2 As shown, in this embodiment, the inner wall of the cylinder 110 is provided with a limiting step 1110, and the peripheral wall of the inner liner 140 is provided with a buckling boss 1430, and the buckling boss 1430 can abut against the limiting step 1110. It can be understood that by setting the limiting step 1110 on the inner wall of the cylinder 110 and setting the buckling boss 1430 on the peripheral wall of the inner liner 140, when the inner liner 140 is set in the cylinder 110, the position of the inner liner 140 can be limited by making the buckling boss 1430 abut against the limiting step 1110, so that the inner liner 140 can be stably hung in the cylinder 110, and the inner liner 140 can be easily removed from the limiting step 1110 by lifting the inner liner 140 upward. Specifically, the abutting surface of the buckling boss 1430 and the abutting surface of the limiting step 1110 are both provided with anti-slip textures 1113. It can be understood that the anti-skid texture 1113 can increase the friction between the abutting surface of the pressing boss 1430 and the abutting surface of the limiting step 1110, thereby preventing the grinding core assembly 120 from driving the inner liner 140 to slide axially in the cylinder 110 during the grinding process. Furthermore, the anti-skid texture 1113 is serrated or wave-shaped. It can be understood that the serrated or wave-shaped anti-skid texture 1113 has a higher roughness and better anti-skid performance. Furthermore, the anti-skid texture 1113 is a rubber structure or a silicone structure, and both the rubber structure and the silicone structure have strong wear resistance and are more durable. Of course, the shape and material of the anti-skid texture 1113 are not limited, and those skilled in the art can also replace it as needed.

[0045] Combination Figure 2As shown, in another embodiment, the limiting step 1110 is arranged in an annular shape along the inner wall of the cylinder 110, and the abutting surface of the limiting step 1110 is provided with a positioning convex portion 1111 in the vertical direction; the buckling boss 1430 is arranged in an annular shape along the peripheral wall of the inner liner 140, and the abutting surface of the buckling boss 1430 is recessed in the vertical direction to form a limiting groove 1431; the limiting groove 1431 can be adaptively connected with the positioning convex portion 1111. It can be understood that when the inner liner 140 is arranged in the cylinder 110, the buckling boss 1430 can be abutted on the limiting step 1110, and the positioning convex portion 1111 is accommodated and matched in the limiting groove 1431, so that the positioning convex portion 1111 can be abutted with the groove wall of the limiting groove 1431, thereby preventing the grinding core assembly 120 from driving the inner liner 140 to slide axially in the cylinder 110 during the grinding process. Specifically, the positioning convex portion 1111 is provided with a support table 111a and a limiting side surface 111b, the support table 111a abuts against the bottom of the supporting limiting groove 1431, and the limiting side surface 111b abuts against the groove wall of the limiting groove 1431. It can be understood that the inner liner 140 can be supported and held by the support table 111a abutting against the bottom of the supporting limiting groove 1431, and the limiting side surface 111b abuts against the groove wall of the limiting groove 1431, thereby making it difficult for the inner liner 140 to slip off the limiting groove 1431 in the axial direction, and the structure is compact and stable, and it is more convenient to use. Further, the groove width of the limiting groove 1431 gradually decreases from the notch of the limiting groove 1431 to the groove bottom of the limiting groove 1431 to form a trapezoidal guide rail, so that the limiting side surface 111b can enter the limiting groove 1431 more smoothly through the guiding effect of the trapezoidal guide rail, thereby improving the installation efficiency.

[0046] Combination Figure 2As shown, in this embodiment, the peripheral wall of the inner container 140 is provided with a ball plunger 1432 at a position close to the bottom of the limiting groove 1431, and the inner wall of the cylinder 110 is provided with a vertical alignment slide rail 1112, the inlet end of the vertical alignment slide rail 1112 extends out of the edge of the bean inlet of the cylinder 110, and the end of the vertical alignment slide rail 1112 extends to the top position of the positioning protrusion 1111, and the ball plunger 1432 can slide along the vertical alignment slide rail 1112. It can be understood that by making the inlet end of the vertical alignment slide rail 1112 extend out of the edge of the bean inlet of the cylinder 110, when the inner container 140 needs to be installed, the placement angle during installation can be obtained by observing the position of the vertical alignment slide rail 1112 of the bean inlet, and the ball plunger 1432 is aligned with the position of the vertical alignment slide rail 1112. Because the ball head plunger 1432 is arranged near the bottom of the limiting groove 1431 and the end of the vertical alignment rail 1112 extends to the top position of the positioning protrusion 1111, the ball head plunger 1432 can slide along the vertical alignment rail 1112 for installation. At the same time, when the ball head plunger 1432 slides to the end position of the vertical alignment rail 1112, the positioning protrusion 1111 can just fit into the limiting groove 1431, which can solve the problem of inaccurate alignment of the positioning protrusion 1111 and the limiting groove 1431 due to the cylinder body 110 being too high, making alignment more convenient and further improving installation efficiency.

[0047] It is understood that, for ease of disassembly and assembly, the inner liner 140 and the inner tube wall are not limited to being detachably connected via the ball plunger 1432. Figure 3 As shown, in another embodiment, the peripheral wall of the inner liner 140 is provided with a mounting groove 1450, and the positioning slider 1433 is slidably disposed in the mounting groove 1450 and elastically connected to the groove bottom of the mounting groove 1450. The positioning end of the positioning slider 1433 protrudes from the outer peripheral wall of the inner liner 140 and abuts against the inner cylinder wall. It can be understood that when assembling the inner liner 140, the positioning end of the positioning slider 1433 can slide into the assembled inner liner 140 through the vertical alignment rail 1112. At the same time, because the positioning slider 1433 is elastically connected to the groove bottom of the mounting groove 1450, the positioning slider 1433 can telescopically slide along the mounting groove 1450, but the positioning slider 1433 can still be firmly abutted against the vertical alignment rail 1112 through the action of elastic force after being worn, thereby improving the stability and accuracy of the alignment.

[0048] In this embodiment, a connection groove 111c is provided at the end of the vertical alignment slide rail 1112, and the positioning slider 1433 can cooperate with the connection groove 111c. A pressing slide groove 1460 is provided on the upper end surface of the inner liner 140, and the pressing slide groove 1460 is connected to the installation groove 1450. The positioning slider 1433 is formed with a wedge-shaped guide groove 143a on the peripheral wall opposite to the pressing slide groove 1460. A pressing slider 1470 is slidably provided in the pressing slide groove 1460, and the clamping end of the pressing slider 1470 extends into the wedge-shaped guide groove 143a to push the positioning slider 1433 to retract into the installation groove 1450. It can be understood that when the positioning slider 1433 slides to the end of the vertical alignment slide rail 1112, the positioning slider 1433 will be pushed and limited in the connection groove 111c by the elastic force to ensure a secure installation. Meanwhile, when the inner liner 140 needs to be disassembled, the pressing slider 1470 can be pressed so that the locking end of the pressing slider 1470 abuts against the wedge-shaped guide groove 143a, and the positioning slider 1433 is pushed along the groove bottom of the wedge-shaped guide groove 143a to overcome the elastic force and shrink in the mounting groove 1450, so that the positioning slider 1433 is loosened from the connecting groove 111c, and the inner liner 140 can be disassembled conveniently. Specifically, the groove bottom of the wedge-shaped guide groove 143a is a first inclined surface that is inclined upward from the notch of the mounting groove 1450 to the groove bottom of the mounting groove 1450, and the pressing slider 1470 is provided with a second inclined surface that is slidably matched with the first inclined surface, so that by pressing the pressing slider 1470, the positioning slider 1433 can be pushed to slide into the groove bottom of the mounting groove 1450 more smoothly, so that the positioning end of the positioning slider 1433 leaves the outer peripheral wall of the inner liner 140.

[0049] Furthermore, the peripheral wall of the pressing slider 1470 is provided with a limiting ridge 1471, and the groove wall of the pressing groove 1460 is provided with a limiting groove 1461 on the peripheral side of the pressing slider 1470, and the limiting ridge 1471 is slidably arranged in the limiting groove 1461, and the limiting ridge 1471 can be engaged with the groove wall of the limiting groove 1461. It can be understood that when the inner liner 140 needs to be disassembled, the positioning slider 1433 can be loosened from the connecting groove 111c by pressing the pressing slider 1470 downward. When the disassembly is completed, the positioning slider 1433 will slide toward the notch of the installation groove 1450 under the action of elastic force, and the pressing slider 1470 will be lifted and returned to the pressing slide groove 1460 by the thrust of the wedge-shaped guide groove 143a. The limiting ridge 1471 is arranged in the limiting slide groove 1461, which can effectively prevent the pressing slider 1470 from slipping off the pressing slide groove 1460 when resetting. At the same time, the limited pressing slider 1470 can limit the positioning slider 1433 by abutting against the groove wall of the wedge-shaped guide groove 143a, so as to prevent the positioning slider 1433 from slipping off the installation groove 1450. The compact structure can make the installation of the positioning slider 1433 more flexible and more convenient to use.

[0050] Furthermore, the inner wall of the cylinder 110 is provided with a lifting groove 1114 at the bottom of the inner liner 140, and a lifting spring 111d is provided in the lifting groove 1114, and the two ends of the lifting spring 111d are respectively in contact with the inner liner 140 and the bottom of the lifting groove 1114. It can be understood that when the inner liner 140 is installed in the cylinder 110, the lifting spring 111d will be compressed between the inner liner 140 and the bottom of the lifting groove 1114, and when the pressing slider 1470 is pressed, the positioning slider 1433 is loosened from the connecting groove 111c, and the lifting spring 111d can release the elastic force to lift the inner liner 140, which is more convenient to use and take away. Specifically, the lifting spring 111d is fixedly connected to the bottom of the lifting groove 1114, which can prevent the lifting spring 111d from popping out of the lifting groove 1114 when resetting, which is more convenient to use.

[0051] Combination Figure 1 and Figure 3 As shown, in one embodiment, the combined detachable grinding assembly 100 further includes a grinding degree adjustment assembly 150; the grinding degree adjustment assembly 150 includes a compression spring 1510, a scale gasket 1520 and a knob 1530; the grinding head 1210 is provided with a lifting slide hole 1211, the transmission end 1221 is penetrated through the lifting slide hole 1211, the compression spring 1510 is sleeved outside the rotating shaft 1220, and is compressed between the inner liner 140 and the grinding head 1210; the knob 1530 is screwed to the end of the transmission end 1221, and the scale gasket 1520 is screwed to the end of the grinding head 1210. 0 is arranged between the grinding head 1210 and the knob 1530, the scale gasket 1520 is clamped on the grinding head 1210, and a plurality of positioning grooves 152a are provided on the side facing the knob 1530; each positioning groove 152a is arranged in a ring shape, and adjacent positioning grooves 152a are connected to form an adjustment slide rail 1521, and the knob 1530 is provided with an adjustment plunger 1531 on the adjustment slide rail 1521, and the adjustment plunger 1531 can be switched between adjacent positioning grooves 152a to push the grinding head 1210 to rise and fall in the grinding chamber 1310.

[0052] It can be understood that because the grinding head 1210 is connected to the transmission end 1221, the compression spring 1510 is compressed between the inner tank 140 and the grinding head 1210, and the knob 1530 is screwed to the end of the transmission end 1221, so that the grinding head 1210 can be pushed to compress the compression spring 1510 by twisting the knob 1530, and at the same time rise or fall in the grinding chamber 1310, thereby adjusting the gap between the outer wall of the grinding head 1210 and the cavity wall of the grinding chamber 1310, and finally achieving the effect of adjusting the coffee grinding degree.

[0053] It can be understood that because the scale gasket 1520 is arranged between the grinding head 1210 and the knob 1530, the scale gasket 1520 is clamped on the grinding head 1210, a plurality of positioning grooves 152a are opened on the scale gasket 1520 facing the knob 1530, and the positioning grooves 152a are connected to form an adjustment rail 1521. The knob 1530 is screwed to the end of the transmission end 1221, and the adjustment plunger 1531 is arranged on the adjustment rail 1521 through the knob 1530. By twisting the knob 1530, the adjustment plunger 1531 can be switched between adjacent positioning slots 152a. As the knob 1530 is twisted, the grinding head 1210 is pushed up or down at the same time. When the adjustment plunger 1531 rotates to a specific positioning slot 152a, the grinding head 1210 moves a specific distance, thereby changing the gap between the outer wall of the grinding head 1210 and the cavity wall of the grinding chamber 1310 to maintain a specific grinding degree, and the adjustment is more precise and controllable. Furthermore, a grinding degree value 1522 is marked on the edge of the scale gasket 1520, and the grinding degree value 1522 corresponds to the grinding degree of the combined detachable grinding assembly 100. It can be understood that when the knob 1530 is rotated, the size of the grinding degree can be obtained by observing the corresponding grinding degree value 1522, so that the adjustment of the grinding degree is quantified, thereby improving the accuracy of the adjustment.

[0054] Combination Figure 5 and Figure 6 As shown, in one embodiment, the assembled and detachable grinding assembly 100 further includes a bean bin 160, the cylinder 110 is provided with a bean inlet communicating with the bean bin 160, the rotating shaft 1220 extends a driving end 1222 into the bean bin 160, a transmission shaft 1620 is rotatably arranged in the bean bin 160, the transmission shaft 1620 is provided with a clamping groove 1621 opposite to the end of the driving end 1222, and the transmission shaft 1620 is detachably clamped with the driving end 1222 through the clamping groove 1621. It can be understood that because the cylinder 110 is provided with a bean inlet communicating with the bean bin 160, the bean bin 160 can be clamped with the driving end 1222 of the rotating shaft 1220 through the transmission shaft 1620, so that the user can drive the rotating shaft 1220 to rotate by driving the transmission shaft 1620, and finally perform the bean grinding operation. At the same time, the transmission shaft 1620 is detachably connected to the driving end 1222 of the rotating shaft 1220, so that the bean bin 160 can be easily replaced by disassembling the rotating shaft 1220 and the transmission shaft 1620. By replacing the bean bin 160 with a suitable capacity, the above-mentioned combined detachable grinding assembly 100 can pour a sufficient amount of coffee beans into the bean bin 160 at one time and grind out a sufficient amount of coffee bean powder to adapt to different usage scenarios. Specifically, a bean passage 1440 is provided on the inner tank 140, and the inner cavity of the bean bin 160 is connected to the grinding chamber 1310 through the bean passage 1440, so that the beans poured into the bean bin 160 can enter the grinding chamber 1310 through the bean passage 1440 for grinding.

[0055] Combination Figure 6 As shown, in this embodiment, the driving end 1222 of the rotating shaft 1220 is also sleeved with a hanging plate 1223, a mounting beam 1610 is horizontally placed in the bean bin 160, and a mounting hole 1611 is opened on the mounting beam 1610, and the transmission shaft 1620 is rotatably and lifted in the mounting hole 1611, and the mounting beam 1610 is provided with a hook 1660 on the side close to the inner liner 140, and the hook 1660 is sleeved on the first end of the transmission shaft 1620 and is clamped on the edge of the hanging plate 1223, and the mounting beam 1610 is provided with a grinding degree adjustment knob 1640 on the side away from the inner liner 140, and the grinding degree adjustment knob 1640 is screwed on the second end of the transmission shaft 1620 to adjust the transmission shaft 1620 to rise and fall in the mounting hole 1611. It can be understood that because the grinding degree adjustment knob 1640 is screwed to the second end of the transmission shaft 1620, when the grinding degree adjustment knob 1640 is twisted, the transmission shaft 1620 will rise or fall in the mounting hole 1611 due to the twisting action. At the same time, because the hook 1660 is sleeved on the first end of the transmission shaft 1620 and clamped on the edge of the hanging plate 1223, the hanging plate 1223 is sleeved on the driving end 1222 of the rotating shaft 1220, so that the transmission shaft 1620 can adjust the rotating shaft 1220 up and down through the hook 1660, thereby making the grinding head 1210 rise or fall in the grinding chamber 1310, so that the gap between the outer wall of the grinding head 1210 and the cavity wall of the grinding chamber 1310 changes, thereby realizing the adjustment of the grinding degree of the above-mentioned combined and detachable grinding assembly 100, and the adjustment process is convenient and fast, and more convenient to use.

[0056] Combination Figure 7 and Figure 8As shown, in another embodiment, the driving end 1222 of the rotating shaft 1220 is also sleeved with a hanging plate 1223, and the bean bin 160 includes a rotating adjustment ring 1650, a mounting beam 1610, a transmission shaft 1620 and a bin body 1630. The bean outlet of the bin body 1630 is embedded in the bean inlet of the cylinder 110, the mounting beam 1610 is horizontally placed in the bin body 1630, and a mounting hole 1611 is opened on the mounting beam 1610. The transmission shaft 1620 is rotatably raised and lowered and arranged in the mounting hole 1611. The mounting beam 1610 is provided with a hook 1660 on a side close to the inner liner 140, and the hook 1660 is sleeved on the outside of the transmission shaft 1620 and clamped on the edge of the hanging plate 1223; the rotating adjustment ring 1650 is sleeved on the outside of the bin body 1630 and is screwed on the outer peripheral wall of the bin body 1630 to rotate and adjust the bin body 1630 to rise and fall. It can be understood that because the rotating adjustment ring 1650 is sleeved outside the bin body 1630 and is threadedly screwed to the outer peripheral wall of the bin body 1630, the bin body 1630 can be raised or lowered to the bean inlet of the cylinder 110 by rotating the rotating adjustment ring 1650. Because the mounting crossbeam 1610 is horizontally placed in the bin body 1630, the transmission shaft 1620 is rotatably raised and lowered in the mounting hole 1611, and the hanging plate 1223 is sleeved on the driving end 1222 of the rotating shaft 1220, and is sleeved on the outside of the transmission shaft 1620 through the hook 1660, and is clamped on the edge of the hanging plate 1223, when the bin body 1630 is raised or lowered, the transmission shaft 1620 will be driven, and the transmission shaft 1620 will adjust the rotating shaft 1220 up and down through the hook 1660, thereby making the grinding head 1210 rise or fall in the grinding chamber 1310, so that the gap between the outer wall of the grinding head 1210 and the cavity wall of the grinding chamber 1310 changes, thereby realizing the adjustment of the grinding degree of the above-mentioned combined detachable grinding assembly 100, and the adjustment process is convenient and quick, and more convenient to use.

[0057] Combination Figure 1 and Fig. 9 As shown, the present disclosure also provides a coffee bean grinder 10, including a combined detachable grinding assembly 100 of any of the above-mentioned embodiments. It can be understood that by applying the combined detachable grinding assembly 100 of the present disclosure to the coffee bean grinder 10, the grinding core assembly 120 and the grinding disc 130 and other components with complex structures are integrated into one body, the structure is compact, and the disassembly and reassembly process can be completed at one time, avoiding the situation of wrong installation or missing installation, and the installation efficiency is higher. At the same time, after the grinding core assembly 120 and the grinding disc 130 and other structures are integrated into the inner tank 140, the grinding core assembly 120 and the grinding disc 130 do not need to be disassembled during the disassembly and assembly process, and thus the concentricity of the grinding core assembly 120 and the grinding disc 130 will not be affected, and the stability of the grinding can be ensured.

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

[0059] 1) Because the inner liner 140 is provided with a connected rotating chamber 1410 and an installation chamber 1420, by setting the grinding disc 130 in the installation chamber 1420, the rotating shaft 1220 is rotatably connected to the rotating chamber 1410, and the grinding head 1210 is connected through the transmission end 1221 of the rotating shaft 1220, so that the grinding head 1210 can be set in the grinding chamber 1310 of the grinding disc 130 for grinding operation, and the inner liner 140 and the inner cylinder wall of the cylinder 110 are detachably connected. When it is necessary to disassemble the grinding core assembly 120 and the grinding disc 130 and other components, the grinding core assembly 120 and the grinding disc 130 can be removed from the cylinder 110 at one time through the inner liner 140. When it is necessary to reinstall, the grinding core assembly 120 and the grinding disc 130 can also be installed into the cylinder 110 at one time through the inner liner 140, and the installation is convenient and quick. Compared with the hand-cranked coffee bean grinders in the prior art, the above-mentioned combined detachable grinding assembly 100 integrates the grinding core assembly 120 and the grinding disc 130 and other components with complex structures into one body by installing the grinding core assembly 120 and the grinding disc 130 and other components in the inner tank 140, and has a compact structure. The disassembly, cleaning and reassembly can be completed at one time, avoiding the situation of wrong installation or missing installation, and the installation efficiency is higher. At the same time, after the grinding core assembly 120 and the grinding disc 130 and other structures are integrated into the inner tank 140, the grinding core assembly 120 and the grinding disc 130 do not need to be disassembled during the disassembly and assembly process, and thus the concentricity of the grinding core assembly 120 and the grinding disc 130 will not be affected, and the stability of the grinding can be guaranteed.

[0060] 2) The liner 140 can be installed in the cylinder 110 of different appearances and capacities, so that the combined detachable grinding assembly 100 can be switched between different appearances or capacities, and the cylinders 110 of different appearances or capacities can meet the needs of different usage occasions. The user can assemble different types of coffee bean grinders 10 by only purchasing multiple cylinders 110, which reduces the economic burden of purchasing the entire coffee bean grinder 10.

[0061] 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 combined detachable grinding assembly, comprising a barrel, a grinding core assembly and a grinding disc; the grinding core assembly and the grinding disc are both arranged in the barrel and connected to the inner barrel wall of the barrel; It is characterized in that The combined and detachable grinding assembly also includes an inner container; The inner container is arranged in the cylinder and is detachably connected to the inner cylinder wall of the cylinder. A rotating cavity and an installation cavity that are connected to each other are formed in the inner container. The grinding core assembly includes a grinding head and a rotating shaft. The grinding disc is arranged in the installation cavity, and the grinding disc forms a grinding cavity. The rotating shaft passes through the rotating cavity and is rotatably connected to the cavity wall of the rotating cavity. The end of the rotating shaft in the grinding cavity is the transmission end. The grinding head is arranged in the grinding cavity and is connected to the transmission end.

2. The combined and disassembled grinding assembly according to claim 1, characterized in that: The inner container is connected to the inner wall of the cylinder body by snapping or screwing.

3. The combined and disassembled grinding assembly according to claim 1, characterized in that: The inner cylinder wall of the cylinder body is convexly provided with a limiting step, and the peripheral wall of the inner container is provided with a buckling boss, and the buckling boss can abut against the limiting step.

4. The combined and disassembled grinding assembly according to claim 3, characterized in that: The limiting step is arranged in an annular shape along the peripheral wall of the inner tank, and the abutting surface of the limiting step is provided with a positioning protrusion in the vertical direction; the buckling boss is arranged in an annular shape along the inner cylinder wall of the cylinder body, and the buckling boss is recessed in the vertical direction to form a limiting groove; the limiting groove can be adaptively connected with the positioning protrusion.

5. The combined and disassembled grinding assembly according to claim 4, characterized in that: A ball plunger is provided on the peripheral wall of the inner pot at a position close to the bottom of the limiting groove, and a vertical alignment slide rail is provided on the inner wall of the cylinder body. The inlet end of the vertical alignment slide rail extends out of the edge of the bean inlet of the cylinder body, and the end of the vertical alignment slide rail extends to the top position of the positioning protrusion, and the ball plunger can slide along the vertical alignment slide rail.

6. The combined and disassembled grinding assembly according to claim 1, characterized in that: The combined and detachable grinding assembly also includes a grinding degree adjustment assembly; the grinding degree adjustment assembly includes a compression spring, a scale gasket and a knob; the grinding head is provided with a lifting slide hole, the transmission end is inserted into the lifting slide hole, the compression spring is sleeved outside the rotating shaft and is compressed between the inner tank and the grinding head; the knob is screwed to the end of the transmission end, the scale gasket is arranged between the grinding head and the knob, the scale gasket is clamped to the grinding head, and a plurality of positioning grooves are provided on the side facing the knob; each of the positioning grooves is arranged in an annular shape, and adjacent positioning grooves are connected to form an adjustment slide rail, the knob is provided with an adjustment plunger on the adjustment slide rail, and the adjustment plunger can be switched between adjacent positioning grooves to push the grinding head to rise and fall in the grinding chamber.

7. The combined and disassembled grinding assembly according to claim 1, characterized in that: The combined and detachable grinding assembly also includes a bean bin, the cylinder is provided with a bean inlet connected to the bean bin, the rotating shaft extends a driving end into the bean bin, a transmission shaft is rotatably arranged in the bean bin, the transmission shaft is provided with a slot opposite to the end of the driving end, and the transmission shaft is detachably connected to the driving end through the slot.

8. The combined and disassembled grinding assembly according to claim 7, characterized in that: The driving end of the rotating shaft is also sleeved with a hanging plate, a mounting beam is horizontally placed in the bean bin, a mounting hole is opened on the mounting beam, the transmission shaft is rotatably and lifted in the mounting hole, a hook is provided on the mounting beam on a side close to the inner tank, the hook is sleeved on the first end of the transmission shaft and clamped on the edge of the hanging plate, a grinding degree adjustment knob is provided on the side of the mounting beam away from the inner tank, and the grinding degree adjustment knob is screwed on the second end of the transmission shaft to drive the transmission shaft to rise and fall in the mounting hole.

9. The combined and disassembled grinding assembly according to claim 7, characterized in that: The driving end of the rotating shaft is also sleeved with a hanging plate, and the bean bin includes a rotating adjustment ring, a mounting beam, a transmission shaft and a bin body. The bean outlet of the bin body is embedded in the bean inlet of the cylinder, and the mounting beam is horizontally placed in the bin body. A mounting hole is opened on the mounting beam. The transmission shaft is rotatably raised and lowered in the mounting hole. A hook is provided on the side of the mounting beam close to the inner tank, and the hook is sleeved on the outside of the transmission shaft and clamped on the edge of the hanging plate; the rotating adjustment ring is sleeved on the outside of the bin body and is threadedly screwed to the outer peripheral wall of the bin body to rotate and adjust the bin body to rise and fall.

10. A coffee bean grinder, characterized in that: A combined and disassembled grinding assembly comprising any one of claims 1 to 9.

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