Coffee bean grinding system

Abstract

The invention discloses a coffee bean grinding system, and belongs to the technical field of coffee grinding instruments, the coffee bean grinding system comprises a pressure release valve, a vacuum bean box, a stable bearing, a driving assembly, an air pump, a discharging channel, a bean grinding assembly, an adjusting assembly, a bean box base, a bean feeding switch and a mounting shell, the bean grinding assembly is mounted in the mounting shell, and the bottom of the adjusting assembly is inserted into the upper end of the mounting shell; a bean box base is inserted into the top of the adjusting assembly, the bottom of the vacuum bean box is inserted into the bean box base, the stable bearing is installed on the bean grinding assembly, one end of the driving assembly is inserted into the rear end of the installation shell and connected with the bean grinding assembly in a meshed mode, an air inlet port and an air outlet port are formed in the end of the air pump, and the bottom of the bean feeding switch is inserted into the upper end of the bean grinding assembly. The problems that in the prior art, due to the fact that a clasp and thread connection mode is used, a system is unstable in the grinding process, and coffee powder is uneven in thickness are solved. And the practicability, durability and universality of the bean grinding system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee grinding equipment, and in particular to a coffee bean grinding system. Background Art

[0002] When brewing coffee, its taste is related to the particle size of the coffee powder. If the particle size of the coffee powder is uneven, over-extraction or uneven extraction will occur during the extraction process, which will greatly affect the taste and flavor.

[0003] For the existing bean grinding systems, most of them use two hooks with grabs extending from both ends to connect with threads. The up and down movement of one of the cutters is adjusted by moving the position of the hooks. The gap between the cutters is changed by staggered settings of the two cutters, thereby adjusting the coarseness of the coffee powder particles. When the bean grinding system is in operation, its internal rotation speed is relatively fast. When grinding, the above-mentioned connection structure will easily break due to grinding. Moreover, this connection method is very easy to shake during grinding, and then uneven grinding will occur, which affects the coarseness of the ground coffee powder. At the same time, there will be a problem of large matching gap.

[0004] Therefore, how to provide a coffee bean grinding system to solve the defects of the existing coffee bean grinding system is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] To this end, the present invention provides a coffee bean grinding system to solve the problem in the prior art that the system is unstable during grinding and the coarseness of the coffee powder is uneven due to the connection method of the hook and the thread.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: The invention discloses a coffee bean grinding system, comprising: An installation shell is installed inside which a grinding bean assembly is installed, a through hole is opened on the side wall of the installation shell, and a discharge channel is connected to the through hole; An adjusting component, the bottom of which is inserted into the upper end of the mounting shell, and a bean box base is inserted into the top of the adjusting component; A vacuum bean box, the bottom of which is inserted into the bean box base, and a pressure relief valve is inserted on the upper surface of the vacuum bean box; Stabilizing bearings, arranged in pairs and mounted on the bean grinding assembly; A driving assembly, one end of which is inserted into the rear end of the mounting housing and meshedly connected with the bean grinding assembly; An air pump, with an air inlet port and an air outlet port at the end thereof, one end of a one-way valve connected to the air inlet port, the other end of the one-way valve connected to a pipeline, the other end of the pipeline inserted into the bottom of the mounting shell, the air outlet port connected to an air pipe, the other end of the air pipe inserted into the discharge channel; The bean-feeding switch has a bottom inserted into the upper end of the bean-grinding assembly, and an upper portion of the bean-feeding switch is placed in the vacuum bean box.

[0007] In a possible implementation, the adjustment component includes: A cutter disc, the bottom of which is inserted into the upper end of the mounting shell, and a grinding knife is installed inside the cutter disc; An inner adjustment ring, the bottom of which is inserted into the mounting shell, the inner adjustment ring is sleeved on the outside of the cutter disc, and an external thread structure is arranged on the outer surface of the inner adjustment ring; An adjusting ring pressing piece is sleeved on the side of the mounting shell, an outer adjusting ring is sleeved on the outer side of the adjusting ring pressing piece, an inner thread structure is arranged on the inner surface of the outer adjusting ring, and the outer adjusting ring is threadedly connected with the inner adjusting ring; A connecting piece is installed above the outer adjustment ring, and an upper end of the connecting piece is inserted into the bottom of the bean box base.

[0008] In a possible implementation, the bean grinding assembly includes: A limiting shell is installed in the installation shell, and a slideway is provided on a side of the limiting shell; A rotating rod is installed in the limiting housing, the bottom of the rotating rod is inserted in the pipe, a ventilation groove is opened in the rotating rod, and one of the stabilizing bearings is arranged between the rotating rod and the limiting housing; A conical knife, sleeved on the outside of the rotating rod; A driven gear, sleeved on the outside of the rotating rod, and the driven gear is arranged below the conical knife; Limit nuts are arranged in pairs and sleeved on the outside of the rotating rod, wherein one of the limit nuts is arranged above the conical cutter, and the other limit nut is arranged below the driven gear; The first oil seal is sleeved on the outside of the rotating rod, the first oil seal is arranged below the limiting nut, and the other stabilizing bearing is arranged between the first oil seal and the limiting nut.

[0009] In a possible implementation, the bean feeding switch includes: A connecting rod, with an exhaust passage formed inside, the connecting rod being inserted at the top of the bean grinding assembly; a second oil seal installed in the exhaust passage; A connecting plate, mounted on the outer side of the bottom of the connecting rod, and the connecting plate is provided with a hole slot; A bean box inner cover is installed in the vacuum bean box, the bean box inner cover is arranged outside the upper end of the connecting rod, and a moving groove is opened on the upper end of the bean box inner cover; The bottom end of the knob is inserted into the top of the connecting rod, and the knob is flipped and connected in the moving groove.

[0010] In a possible implementation, the driving component includes: A plug rod installed in the installation housing; A driving gear, sleeved on the outside of the insertion rod, the driving gear is meshed and connected with the bean grinding assembly; A driving gear, sleeved on the outside of the insertion rod, and the driving gear is arranged above the driving gear; A worm gear meshingly connected behind the driving gear; The driving motor has a driving rod inserted in the output end, and the worm is sleeved on the outer side of the driving rod.

[0011] In a possible implementation, a round rod is installed on the side of the mounting shell, a lifting slot is opened in the round rod, an insert block is transmission-connected in the lifting slot, the top of the insert block is against the bottom surface of the adjustment component, and a spring is sleeved on the outside of the insert block.

[0012] In a possible implementation, the bottom of the vacuum bean box is an inclined panel, a feeding hole is opened on the inclined panel, a connecting rod is installed on the upper surface of the inclined panel, the connecting rod is transmission-connected to the connecting rod, a bean box inner cover is installed above the connecting rod, and the connecting plate is arranged below the inclined panel.

[0013] In a possible implementation, a plurality of protrusions are provided at the bottom of the outer adjustment ring, and slots are provided between the protrusions.

[0014] The present invention adjusts the distance between the two cutters in the system by setting an adjustment component, thereby adjusting the coarseness of the ground coffee powder. The adjustment component itself is connected by a thread, which is firmly connected and not only facilitates the adjustment of the distance between the cutters, but also increases the stability during grinding. At the same time, the setting of the stable bearing can also increase the stability during grinding. Moreover, the setting of the air pump can extract the air in the vacuum bean box, so that the coffee beans are preserved in a vacuum state, and the extracted air can enter the discharge channel through the air pipe to blow out the residual coffee powder in the discharge channel. This system not only improves the stability during grinding, but also reduces the clearance between the cutters and makes the clearance between the cutters easier to adjust, thereby ensuring the uniformity of the coffee powder particles and improving practicality and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 A three-dimensional diagram of the coffee bean grinding system provided by the present invention; Figure 2 A cross-sectional view of a coffee bean grinding system provided by the present invention; Figure 3 A cross-sectional view of the adjustment assembly provided by the present invention; Figure 4 A cross-sectional view of the bean grinding assembly provided by the present invention; Figure 5 A cross-sectional view of a bean feeding switch provided by the present invention; Figure 6 A three-dimensional diagram of the drive assembly provided by the present invention; Figure 7 A cross-sectional view of the installation housing provided by the present invention; Figure 8 A cross-sectional view of the vacuum bean box provided by the present invention; In the figure: 1 pressure relief valve; 2 vacuum bean box; 21 connecting rod; 22 feeding hole; 23 inclined plate; 3 stabilizing bearing; 4 driving assembly; 41 driving gear; 42 driving gear; 43 worm; 44 driving motor; 45 driving rod; 46 plug rod; 5 air pump; 6 discharging channel; 7 bean grinding assembly; 71 ventilation groove; 72 limit nut; 73 first oil seal; 74 driven gear; 75 limiting shell; 76 conical knife; 77 rotating rod; 8 adjustment assembly; 81 grinding knife; 83 inner adjustment ring; 84 outer adjustment ring; 85 knife disc; 86 connecting piece; 87 adjustment ring pressing piece; 9 bean box base; 10 bean feeding switch; 101 knob; 102 connecting rod; 103 exhaust channel; 104 connecting plate; 105 second oil seal; 106 hole groove; 107 bean box inner cover; 11 installation shell; 111 round rod; 112 spring; 113 plug block. DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Please refer to Figure 1-Figure 8 Now, a coffee bean grinding system disclosed in the present invention is described. The present invention is composed of eleven parts, such as Figure 1-2 , including a pressure relief valve 1, a vacuum bean box 2, a stabilizing bearing 3, a driving component 4, an air pump 5, a discharge channel 6, a bean grinding component 7, an adjusting component 8, a bean box base 9, a bean feeding switch 10 and an installation shell 11, wherein the bean grinding component 7 is installed inside the installation shell 11, a through hole is opened on the side wall of the installation shell 11, and the discharge channel 6 is connected to the through hole, the bottom of the adjusting component 8 is inserted into the upper end of the installation shell 11, the top of the adjusting component 8 is inserted with a bean box base 9, the bottom of the vacuum bean box 2 is inserted in the bean box base 9, and the upper surface of the vacuum bean box 2 is inserted with a The pressure relief valve 1 and the stabilizing bearing 3 are arranged in pairs and installed on the bean grinding assembly 7. One end of the driving assembly 4 is inserted at the rear end of the mounting shell 11 and meshed with the bean grinding assembly 7. The end of the air pump 5 is provided with an air inlet port and an air outlet port. One end of the one-way valve is connected to the air inlet port, and the other end of the one-way valve is connected to a pipeline. The other end of the pipeline is inserted at the bottom of the mounting shell 11. The air outlet port is connected to an air pipe, and the other end of the air pipe is inserted in the discharge channel 6. The bottom of the bean feeding switch 10 is inserted at the upper end of the bean grinding assembly 7, and the upper part of the bean feeding switch 10 is placed in the vacuum bean box 2. The pressure relief valve 1 is used to balance the internal and external air pressures. The stabilizing bearings 3 are arranged at both ends of the bean grinding assembly 7 to increase the stability and concentricity during the bean grinding process.

[0020] When the present invention is used, the cover on the top of the vacuum bean box 2 is first opened, and coffee beans are poured into the vacuum bean box 2. Then, the cover is closed, and the pressure relief valve 1 is tightened. Then, the air pump 5 is started, and the air in the vacuum bean box 2 enters the pipeline through the exhaust channel 103 and the ventilation groove 71. Then, the air flows through the one-way valve and enters the air pump 5 for storage. When storing coffee beans, the surface of the connecting plate 104 is aligned below the feeding hole 22, so that the vacuum bean box 2 is separated from the mounting shell 11. Such an arrangement makes the vacuum bean box 2 completely sealed, which is convenient for vacuum storage. When grinding is required, the outer adjustment ring 84 is rotated to drive the inner adjustment ring 83 to rotate. When the inner adjustment ring 83 rotates, it moves up and down and drives the knife disc 85 to move. The distance between the grinding knife 81 and the conical knife 76 is changed by the movement of the knife disc 85, thereby adjusting the particle size of the ground coffee beans. After adjustment, the vacuum bean box 2 is opened, and the knob 101 is rotated to make the connecting rod 102 rotate with the connecting plate 104, and then the hole groove 106 is aligned with the feeding hole 22, so that the coffee beans slide down along the inclined plate 23. The coffee powder is ground to between the grinding knife 81 and the conical knife 76, and then the vacuum bean box 2 is closed and the driving motor 44 is started to make the rotating rod 77 start to rotate. The grinding knife 81 and the conical knife 76 move relative to each other to grind the coffee into powder. When the particle size of the coffee powder is smaller than the distance between the grinding knife 81 and the conical knife 76, the coffee powder can leak down and enter the discharge channel 6 along the slide. The coffee powder remaining in the discharge channel 6 and the slide can be blown away by starting the air pump 5 to discharge the stored air through the air pipe.

[0021] In a specific embodiment, Figure 3 The adjustment assembly 8 includes a grinding knife 81, an inner adjustment ring 83, an outer adjustment ring 84, a knife disc 85, a connecting piece 86 and an adjusting ring pressing piece 87. The bottom of the knife disc 85 is inserted into the upper end of the mounting shell 11, and the grinding knife 81 is installed inside the knife disc 85. The bottom of the inner adjustment ring 83 is inserted into the mounting shell 11, and the inner adjustment ring 83 is sleeved on the outside of the knife disc 85. An external thread structure is provided on the outer surface of the inner adjustment ring 83. The adjusting ring pressing piece 87 is sleeved on the side of the mounting shell 11. The outer side of the adjusting ring pressing piece 87 is sleeved with the outer adjustment ring 84, and an internal thread structure is provided on the inner surface of the outer adjustment ring 84. The outer adjustment ring 84 is threadedly connected to the inner adjustment ring 83. The connecting piece 86 is installed above the outer adjustment ring 84, and the upper end of the connecting piece 86 is inserted into the bottom of the bean box base 9. By setting the adjusting ring pressing piece 87, the connecting piece 86 and the insert block 113, the outer adjusting ring 84 can only rotate but not translate. In this way, during the rotation of the outer adjusting ring 84, the inner adjusting ring 83 translates along the internal thread structure. During the movement of the inner adjusting ring 83, the knife disc 85 moves with the grinding knife 81, thereby changing the size of the grinding particles.

[0022] In a specific embodiment, Figure 4The bean grinding assembly 7 includes a ventilation groove 71, a limit nut 72, a first oil seal 73, a driven gear 74, a limiting shell 75, a conical knife 76 and a rotating rod 77. The limiting shell 75 is installed in the installation shell 11. The side of the limiting shell 75 is provided with a slideway. The rotating rod 77 is installed in the limiting shell 75. The bottom of the rotating rod 77 is inserted in the pipeline. The rotating rod 77 is provided with a ventilation groove 71. One of the stabilizing bearings 3 is provided between the rotating rod 77 and the limiting shell 75. The conical knife 76 is sleeved on the rotating rod 77. On the outside of the rod 77, the driven gear 74 is sleeved on the outside of the rotating rod 77, and the driven gear 74 is arranged below the conical knife 76. The limiting nuts 72 are arranged in pairs and sleeved on the outside of the rotating rod 77, one of the limiting nuts 72 is arranged above the conical knife 76, and the other limiting nut 72 is arranged below the driven gear 74. The first oil seal 73 is sleeved on the outside of the rotating rod 77, and the first oil seal 73 is arranged below the limiting nut 72. Another stabilizing bearing 3 is arranged between the first oil seal 73 and the limiting nut 72. The limiting nut 72 is used to limit the translation of the conical knife 76 and the driven gear 74. The first oil seal 73 is arranged to leak lubricating oil, and the setting of the limiting housing 75 prevents the rotating rod 77 from shifting.

[0023] In a specific embodiment, Figure 5 The bean feeding switch 10 includes a knob 101, a connecting rod 102, an exhaust channel 103, a connecting plate 104, a second oil seal 105, a hole groove 106 and a bean box inner cover 107. The exhaust channel 103 is opened inside the connecting rod 102, the connecting rod 102 is inserted at the top of the bean grinding assembly 7, the second oil seal 105 is installed in the exhaust channel 103, the connecting plate 104 is installed on the outside of the bottom of the connecting rod 102, the connecting plate 104 is opened with a hole groove 106, the bean box inner cover 107 is installed in the vacuum bean box 2, the bean box inner cover 107 is arranged on the outside of the upper end of the connecting rod 102, the upper end of the bean box inner cover 107 is opened with a moving groove, the bottom end of the knob 101 is inserted at the top of the connecting rod 102, and the knob 101 is flipped and connected in the moving groove. The knob 101 drives the connecting rod 102 to rotate, thereby controlling the rotation of the connecting plate 104, so as to achieve the purpose of controlling the delivery of coffee beans to the grinding assembly 7. The second oil seal 105 is also provided to prevent leakage of hydraulic oil. A rotation indicator is provided on the bean box inner cover 107, which can be used to indicate the rotation direction of the knob 101.

[0024] In a specific embodiment, Figure 6The driving assembly 4 includes a driving gear 41, a driving gear 42, a worm 43, a driving motor 44, a driving rod 45 and a plug rod 46. The plug rod 46 is installed in the mounting housing 11. The driving gear 42 is sleeved on the outside of the plug rod 46. The driving gear 42 is meshed and connected with the grinding assembly 7. The driving gear 41 is sleeved on the outside of the plug rod 46. The driving gear 41 is arranged above the driving gear 42. The worm 43 is meshed and connected behind the driving gear 41. The driving rod 45 is inserted in the output end of the driving motor 44, and the worm 43 is sleeved on the outside of the driving rod 45. The driving method of the driving assembly 4 is that the driving motor 44 drives the driving rod 45 to rotate. When the driving rod 45 rotates, the worm 43 rotates and causes the driving gear 41 to rotate. The driving gear 41 adopts a helical gear design, which makes the meshing effect better. When the driving gear 41 rotates, the driving gear 42 rotates. The driving gear 42 drives the driven gear 74 to rotate, and finally causes the rotating rod 77 to rotate.

[0025] In a specific embodiment, Figure 7 A round rod 111 is installed on the side of the mounting housing 11, and a lifting groove is opened in the round rod 111. A plug block 113 is connected in the lifting groove. The top of the plug block 113 is against the bottom surface of the adjustment component 8, and a spring 112 is sleeved on the outside of the plug block 113. The plug block 113 is designed to press against the outer adjustment ring 84, and the spring 112 is always compressed, pushing the plug block 113 to press against the outer adjustment ring 84 through the elastic force.

[0026] In a specific embodiment, Figure 8 The bottom of the vacuum bean box 2 is an inclined panel 23, a feeding hole 22 is opened on the inclined panel 23, a connecting rod 21 is installed on the upper surface of the inclined panel 23, the connecting rod 21 is connected to the connecting rod 102, a bean box inner cover 107 is installed above the connecting rod 21, and a connecting plate 104 is arranged below the inclined panel 23. The arrangement of the connecting rod 21 facilitates the installation and rotation of the connecting rod 102.

[0027] In a specific embodiment, Figure 3 The outer adjustment ring 84 is provided with a plurality of protrusions at the bottom, and slots are provided between the protrusions. When the outer adjustment ring 84 is rotated, the protrusions will squeeze the plug block 113 and drive the plug block 113 to move downward, so that the spring 112 is compressed again, and when it is rotated again, the elastic force of the spring 112 will drive the plug block 113 to be inserted into the slot, and the cycle is repeated, and the plug block 113 will repeatedly push the outer adjustment ring 84 upward to adjust the position.

[0028] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A coffee bean grinding system, characterized in that: include: An installation shell (11) having a bean grinding assembly (7) installed therein, a through hole being opened on a side wall of the installation shell (11), and a discharge channel (6) being connected to the through hole; An adjusting component (8), the bottom of which is inserted into the upper end of the mounting shell (11), and a bean box base (9) is inserted into the top of the adjusting component (8); A vacuum bean box (2), the bottom of which is inserted into the bean box base (9), and a pressure relief valve (1) is inserted on the upper surface of the vacuum bean box (2); Stabilizing bearings (3) are arranged in pairs and mounted on the bean grinding assembly (7); A driving assembly (4), one end of which is inserted into the rear end of the mounting housing (11) and meshedly connected with the bean grinding assembly (7); An air pump (5) is provided with an air inlet port and an air outlet port at its end, one end of a one-way valve is connected to the air inlet port, the other end of the one-way valve is connected to a pipeline, the other end of the pipeline is inserted into the bottom of the mounting housing (11), the air outlet port is connected to an air pipe, the other end of the air pipe is inserted into the discharge channel (6); The bean-feeding switch (10) has a bottom portion inserted into the upper end of the bean-grinding assembly (7), and an upper portion of the bean-feeding switch (10) is placed in the vacuum bean box (2).

2. The coffee bean grinding system according to claim 1, characterized in that: The regulating component (8) comprises: A cutter disc (85), the bottom of which is inserted into the upper end of the mounting housing (11), and a grinding knife (81) is installed inside the cutter disc (85); An inner adjustment ring (83), the bottom of which is inserted into the mounting housing (11), the inner adjustment ring (83) is sleeved on the outside of the cutter disc (85), and an external thread structure is provided on the outer surface of the inner adjustment ring (83); An adjusting ring pressing piece (87) is sleeved on a side of the mounting housing (11); an outer adjusting ring (84) is sleeved on the outer side of the adjusting ring pressing piece (87); an inner thread structure is provided on the inner surface of the outer adjusting ring (84); and the outer adjusting ring (84) is threadedly connected to the inner adjusting ring (83); A connecting piece (86) is installed above the outer adjustment ring (84), and the upper end of the connecting piece (86) is inserted into the bottom of the bean box base (9).

3. The coffee bean grinding system according to claim 1, characterized in that: The bean grinding assembly (7) comprises: A limiting shell (75) is installed in the installation shell (11), and a slideway is provided on a side of the limiting shell (75); a rotating rod (77) installed in the limiting housing (75), the bottom of the rotating rod (77) being inserted into the pipe, a venting groove (71) being provided in the rotating rod (77), and one of the stabilizing bearings (3) being arranged between the rotating rod (77) and the limiting housing (75); A conical knife (76) sleeved on the outside of the rotating rod (77); A driven gear (74) sleeved on the outside of the rotating rod (77), the driven gear (74) being arranged below the conical knife (76); Limit nuts (72) are arranged in pairs and sleeved on the outside of the rotating rod (77), wherein one of the limit nuts (72) is arranged above the conical knife (76) and the other limit nut (72) is arranged below the driven gear (74); The first oil seal (73) is sleeved on the outside of the rotating rod (77), the first oil seal (73) is arranged below the limiting nut (72), and the other stabilizing bearing (3) is arranged between the first oil seal (73) and the limiting nut (72).

4. The coffee bean grinding system according to claim 1, characterized in that: The bean feeding switch (10) comprises: A connecting rod (102) having an exhaust passage (103) formed therein, wherein the connecting rod (102) is inserted into the top end of the bean grinding assembly (7); A second oil seal (105) installed in the exhaust passage (103); A connecting plate (104) is mounted on the outside of the bottom of the connecting rod (102), and a hole groove (106) is formed on the connecting plate (104); A bean box inner cover (107) is installed in the vacuum bean box (2), the bean box inner cover (107) is arranged outside the upper end of the connecting rod (102), and a movable groove is formed at the upper end of the bean box inner cover (107); The bottom end of the knob (101) is inserted into the top of the connecting rod (102), and the knob (101) is flipped and connected in the movable groove.

5. The coffee bean grinding system according to claim 1, characterized in that: The driving component (4) comprises: An insertion rod (46) installed in the installation housing (11); A driving gear (42) is sleeved on the outside of the insertion rod (46), and the driving gear (42) is meshingly connected with the bean grinding assembly (7); A driving gear (41) is sleeved on the outside of the insertion rod (46), and the driving gear (41) is arranged above the driving gear (42); A worm (43) meshingly connected to the rear of the driving gear (41); A driving motor (44) has a driving rod (45) inserted into the output end thereof, and the worm (43) is sleeved on the outer side of the driving rod (45).

6. The coffee bean grinding system according to claim 1, characterized in that: A round rod (111) is installed on the side of the mounting housing (11), a lifting groove is opened in the round rod (111), an insert block (113) is drivingly connected in the lifting groove, the top end of the insert block (113) is against the bottom surface of the adjustment component (8), and a spring (112) is sleeved on the outside of the insert block (113).

7. The coffee bean grinding system according to claim 4, characterized in that: The bottom of the vacuum bean box (2) is an inclined panel (23), a feeding hole (22) is formed on the inclined panel (23), a connecting rod (21) is mounted on the upper surface of the inclined panel (23), the connecting rod (21) is drivingly connected to the connecting rod (102), a bean box inner cover (107) is mounted above the connecting rod (21), and the connecting plate (104) is arranged below the inclined panel (23).

8. The coffee bean grinding system according to claim 2, characterized in that: The bottom of the outer adjustment ring (84) is provided with a plurality of protrusions, and slots are provided between the protrusions.

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