A coffee grinder

Abstract

A coffee grinder, comprising a housing, a motor and a cutter head; the motor includes a motor body and a rotating shaft connected to the motor body; the upper end of the housing is connected with a grinding chamber; the cutter head is installed in the grinding chamber; the cutter head includes an upper cutter head and a lower cutter head, and a mounting seat is installed above the housing; the grinding chamber is vertically slidably connected in the mounting seat; an upper cutter head seat is fixed above the mounting seat; the upper cutter head is fixed below the upper cutter head seat; a lower cutter head seat is vertically slidably connected to the rotating shaft; the lower cutter head is fixed on the lower cutter head seat; a vertical adjusting mechanism for controlling the grinding chamber, the lower cutter head seat and the lower cutter head to move up and down together is installed in the grinding chamber. When adjusting the distance between the upper cutter head and the lower cutter head in the present invention, the grinding chamber, the lower cutter head seat and the lower cutter head are moved up and down together through the vertical adjusting mechanism for adjustment, and it is not easy to have a gap between the grinding chamber and the lower cutter head seat.

Description

Technical Field

[0001] The present invention relates to a coffee grinder. Background Art

[0002] A coffee grinder, a bean grinder for grinding coffee beans, works by grinding coffee beans into powder through a cutter head. The cutter head generally consists of an upper cutter head and a lower cutter head, and the distance between the upper cutter head and the lower cutter head determines the fineness of the ground coffee powder, and the fineness of the coffee powder determines the taste of the coffee. Due to different requirements of customers for the fineness of coffee powder, there is a coffee grinder that can adjust the distance between the upper cutter head and the lower cutter head. For example, a cutter head adjustment structure for a coffee grinder applied by our company with the application number 202020700919.2. Although this patent can solve the problem of the distance between the upper cutter head and the lower cutter head, during the adjustment process, if the lower cutter head and the lower cutter head seat move upward, the distance between the lower cutter head seat and the grinding chamber will become larger. Therefore, it is very easy to hide powder between the lower cutter head seat and the grinding chamber and it is very difficult to clean. After long-term use, it affects the customer experience. Summary of the Invention

[0003] The present invention is to solve the technical problem of providing a coffee grinder that adjusts the distance between the upper cutter head and the lower cutter head by controlling the up and down movement of the grinding chamber, the lower cutter head and the lower cutter head seat together.

[0004] To solve the above technical problem, a technical solution of a coffee grinder of the present invention is as follows:

[0005] It includes a housing, a motor installed in the housing, and a cutter head connected to the motor; the motor includes a motor body and a rotating shaft connected to the motor body; the upper end of the housing is connected with a grinding chamber; the cutter head is installed in the grinding chamber; the cutter head includes an upper cutter head and a lower cutter head, and an installation seat is installed above the housing; the grinding chamber is vertically slidably connected in the installation seat; an upper cutter head seat is fixed above the installation seat; the upper cutter head is fixed below the upper cutter head seat; the rotating shaft is vertically slidably connected with a lower cutter head seat; the lower cutter head is fixed on the lower cutter head seat; a vertical adjustment mechanism for controlling the up and down movement of the grinding chamber, the lower cutter head seat and the lower cutter head together is installed in the grinding chamber.

[0006] The vertical adjustment mechanism includes a vertical sliding bushing, an upper bearing, a lower bearing, an adjustment shaft, a knob, an eccentric wheel, an adjustment seat, a spring, a pressure seat, and a nut cover; one end of the adjustment shaft is connected to the knob, and the other end sequentially passes through the housing, the mounting seat, and the grinding chamber and is connected to the eccentric wheel; the eccentric wheel is located inside the adjustment seat; the vertical sliding bushing is vertically slidably connected to the rotating shaft; the adjustment seat, the upper bearing, and the lower bearing are installed on the vertical sliding bushing and locked by the nut cover; the eccentric wheel is located between the upper bearing and the lower bearing; the lower cutter head seat is fixed above the vertical sliding bushing, and the lower cutter head seat is vertically slidably connected to the rotating shaft by fixing itself above the vertical sliding bushing; the lower cutter head is fixed on the lower cutter head seat; the pressure seat is fixed to the upper end of the rotating shaft; the spring is connected between the pressure seat and the vertical sliding bushing.

[0007] A steel sleeve is connected between the rotating shaft and the lower cutter head seat; the steel sleeve is located above the vertical sliding bushing, and the spring is connected between the steel sleeve and the pressure seat; the steel sleeve is vertically slidably connected to the rotating shaft.

[0008] The adjustment seat includes a seat body fixed to the rotating shaft, an upper disk surface connected above the seat body, and a lower disk surface connected below the seat body; the eccentric wheel is located between the upper disk surface and the lower disk surface.

[0009] A snap ring is clamped at the lower end of the vertical sliding bushing; the snap ring abuts against the lower side of the lower bearing.

[0010] The pressure seat is fixed to the upper end of the rotating shaft by bolts; a sealing ring is connected between the pressure seat and the lower cutter head seat.

[0011] The nut cover is threadedly connected to the grinding chamber.

[0012] The technical effect that the present invention can achieve is: when adjusting the distance between the upper cutter head and the lower cutter head in the present invention, the grinding chamber, the lower cutter head seat, and the lower cutter head are moved up and down together through the vertical adjustment mechanism for adjustment, and it is not easy to have a gap between the grinding chamber and the lower cutter head seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the present invention in detail with reference to the drawings and specific embodiments:

[0014] Figure 1 is a schematic structural diagram of a coffee grinder according to the present invention;

[0015] Figure 2 is Figure 1 an enlarged view of part A of

[0016] Figure 3 is Figure 2 an enlarged view of part B of

[0017] Figure 4 is Figure 2Enlarged view of part C;

[0018] Figure 5 It is a schematic structural diagram of an eccentric wheel;

[0019] Figure 6 It is a schematic structural diagram of an adjusting seat. Specific embodiments

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Refer to Figures 1 to 6 .

[0022] A coffee grinder includes a housing 1, a motor installed in the housing 1, and a cutter head connected to the motor; the motor includes a motor body 2 and a rotating shaft 3 connected to the motor body 2; the upper end of the housing 1 is connected to a grinding chamber 4; the cutter head is installed in the grinding chamber 4; the cutter head includes an upper cutter head 5 and a lower cutter head 6, and a mounting seat 7 is installed above the housing 1; the grinding chamber 4 is vertically slidably connected in the mounting seat 7; an upper cutter head seat 8 is fixed above the mounting seat 7; the upper cutter head 5 is fixed below the upper cutter head seat 8; a lower cutter head seat 9 is vertically slidably connected to the rotating shaft 3; the lower cutter head 6 is fixed on the lower cutter head seat 9; a vertical adjusting mechanism for controlling the grinding chamber 4, the lower cutter head seat 9, and the lower cutter head 6 to move up and down together is installed in the grinding chamber 4.

[0023] Specifically, the vertical adjusting mechanism includes a vertical sliding bushing 11, an upper bearing 12, a lower bearing 13, an adjusting shaft 14, a knob 15, an eccentric wheel 16, an adjusting seat 17, a spring 19, a pressing seat 20, and a nut cover 21; one end of the adjusting shaft 14 is connected to the knob 15 and the other end sequentially passes through the housing 1, the mounting seat 7, and the grinding chamber 4 and is connected to the eccentric wheel 16; the eccentric wheel 16 is located in the adjusting seat 17; the vertical sliding bushing 11 is vertically slidably connected to the rotating shaft 3; the adjusting seat 17, the upper bearing 12, and the lower bearing 13 are installed on the vertical sliding bushing 11 and locked by the nut cover 21 (the adjusting seat 17, the upper bearing 12, and the lower bearing 13 are locked in the grinding chamber 4 by the nut cover 21); the eccentric wheel 16 is located between the upper bearing 12 and the lower bearing 13; the lower cutter head seat 9 is fixed above the vertical sliding bushing 11, and the lower cutter head seat 9 is vertically slidably connected to the rotating shaft 3 by fixing itself above the vertical sliding bushing 11; the lower cutter head 6 is fixed on the lower cutter head seat 9; the pressing seat 20 is fixed to the upper end of the rotating shaft 3; the spring 19 is connected between the pressing seat 20 and the vertical sliding bushing 11.

[0024] Specifically, a steel sleeve 31 is connected between the rotating shaft 3 and the lower cutter head seat 9; the steel sleeve 31 is located above the vertical sliding bushing 11, and the spring 19 is connected between the steel sleeve 31 and the pressing seat 20; the steel sleeve 31 is vertically slidably connected to the rotating shaft 3.

[0025] Specifically, the adjusting seat 17 includes a seat body 32 fixed to the rotating shaft 3, an upper disk surface 33 connected above the seat body 32, and a lower disk surface 34 connected below the seat body 32; the eccentric wheel 16 is located between the upper disk surface 33 and the lower disk surface 34.

[0026] Specifically, a snap ring 18 is clamped at the lower end of the vertical sliding bushing 11; the snap ring 18 abuts against the lower side of the lower bearing 13.

[0027] Specifically, the pressing seat 20 is fixed to the upper end of the rotating shaft 3 by bolts; a sealing ring 41 is connected between the pressing seat 20 and the lower cutter head seat 9.

[0028] Specifically, the nut cover 21 is threadedly connected to the grinding chamber 4.

[0029] Usage instructions: When the present invention is in use, the vertical adjusting mechanism is used to control the grinding chamber 4, the lower cutter head seat 9, and the lower cutter head 6 to move up or down together, so as to adjust the distance between the lower cutter head 6 and the upper cutter head 5. Compared with the prior art, when the grinding chamber 4, the lower cutter head seat 9, and the lower cutter head 6 move up or down together, it is not easy to have a gap between the grinding chamber 4 and the lower cutter head seat 9. Therefore, coffee powder is not easy to hide between the grinding chamber 4 and the lower cutter head seat 9; specifically, by rotating the knob 15 of the present invention, the knob 15 drives the adjusting shaft 14 and the eccentric wheel 16 to rotate. By the side of the eccentric wheel 16 abutting against the upper disk surface 33 or the lower disk surface 34 of the adjusting seat 17, the adjusting seat 17 is driven to move up or down (when the side of the eccentric wheel 16 abuts against the upper disk surface 33 of the adjusting seat 17, the adjusting seat 17 is driven to move up; when the side of the eccentric wheel 16 abuts against the lower disk surface 34, the adjusting seat 17 is driven to move down). When the adjusting seat 17 moves up or down, the vertical sliding bushing 11, the upper bearing 12, the lower bearing 13, the nut cover 21, the snap ring 18, the lower cutter head seat 9, and the lower cutter head 6 are driven to move up or down, so as to adjust the distance between the lower cutter head 6 and the upper cutter head 5; more specifically, when the adjusting seat 17 moves up, since the vertical sliding bushing 11 and the lower cutter head seat 9 move up, the spring 19 will be compressed. When the adjusting seat 17 moves down, the spring 19 will press down the steel sleeve 31 and the vertical sliding bushing 11 due to restoring its original shape, helping the vertical sliding bushing 11 to move down and eliminating the fit clearance; by connecting a steel sleeve 31 between the rotating shaft 3 and the lower cutter head seat 9, using the characteristics of the steel sleeve 31 being wear-resistant and having high precision, the service life of the lower cutter head seat 9 can be effectively increased; preferably, a snap ring 18 is clamped at the lower end of the vertical sliding bushing 11, and the snap ring 18 abuts against the lower side of the lower bearing 13. During the process of the adjusting seat 17 moving down, the adjusting seat 17 presses down the lower bearing 13, and the lower bearing 13 presses down the snap ring 18 and the vertical sliding bushing 11. The snap ring 18 can help the lower bearing 13 drive the vertical sliding bushing 11 to move down.

Claims

1. A coffee grinder, comprising a housing (1), a motor installed in the housing (1), and a cutter head connected to the motor; the motor includes a motor body (2) and a rotating shaft (3) connected to the motor body (2); an upper end of the housing (1) is connected to a grinding chamber (4); the cutter head is installed in the grinding chamber (4); the cutter head includes an upper cutter head (5) and a lower cutter head (6), characterized in that: Above the said housing (1), a mounting seat (7) is installed; the grinding chamber (4) is vertically slidably connected within the mounting seat (7); above the mounting seat (7), an upper cutter disc seat (8) is fixed; the upper cutter disc (5) is fixed below the upper cutter disc seat (8); on the rotating shaft (3), a lower cutter disc seat (9) is vertically slidably connected; the lower cutter disc (6) is fixed on the lower cutter disc seat (9); within the grinding chamber (4), a vertical adjusting mechanism is installed for controlling the synchronous up and down movement of the grinding chamber (4), the lower cutter disc seat (9), and the lower cutter disc (6); the vertical adjusting mechanism includes a vertical sliding shaft sleeve (11), an upper bearing (12), a lower bearing (13), an adjusting shaft (14), a knob (15), an eccentric wheel (16), an adjusting seat (17), a spring (19), a pressing seat (20), and a nut cover (21); one end of the adjusting shaft (14) is connected to the knob (15), and the other end sequentially passes through the housing (1), the mounting seat (7), and the grinding chamber (4) to be connected to the eccentric wheel (16); the eccentric wheel (16) is located within the adjusting seat (17); the vertical sliding shaft sleeve (11) is vertically slidably connected to the rotating shaft (3); the adjusting seat (17), the upper bearing (12), and the lower bearing (13) are installed on the vertical sliding shaft sleeve (11) and locked by the nut cover (21); the eccentric wheel (16) is located between the upper bearing (12) and the lower bearing (13); the lower cutter disc seat (9) is fixed above the vertical sliding shaft sleeve (11), and the lower cutter disc seat (9) is vertically slidably connected to the rotating shaft (3) by fixing itself above the vertical sliding shaft sleeve (11); the lower cutter disc (6) is fixed on the lower cutter disc seat (9); the pressing seat (20) is fixed to the upper end of the rotating shaft (3); the spring (19) is connected between the pressing seat (20) and the vertical sliding shaft sleeve (11).

2. A coffee grinder according to claim 1, wherein: A steel sleeve (31) is connected between the rotating shaft (3) and the lower cutter disc seat (9); the steel sleeve (31) is located above the vertical sliding shaft sleeve (11), and the spring (19) is connected between the steel sleeve (31) and the pressing seat (20); the steel sleeve (31) is vertically slidably connected to the rotating shaft (3).

3. A coffee grinder according to claim 1, characterized in that: The adjusting seat (17) includes a seat body (32) fixed to the rotating shaft (3), an upper disc surface (33) connected above the seat body (32), and a lower disc surface (34) connected below the seat body (32); the eccentric wheel (16) is located between the upper disc surface (33) and the lower disc surface (34).

4. A coffee grinder according to claim 1, wherein: A circlip (18) is clamped at the lower end of the vertical sliding shaft sleeve (11); the circlip (18) abuts against the lower part of the lower bearing (13).

5. A coffee grinder according to claim 1, wherein: The pressing seat (20) is fixed to the upper end of the rotating shaft (3) by bolts; a sealing ring (41) is connected between the pressing seat (20) and the lower cutter disc seat (9).

6. A coffee grinder according to claim 1, wherein: The nut cover (21) is threadedly connected to the grinding chamber (4).

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