Coffee extraction device

Abstract

The utility model relates to the technical field of coffee extraction, and discloses a coffee extraction device which comprises a C-shaped machine shell composed of a top plate, a bottom plate and side plates, a transverse rod is arranged below the top plate, a rotating shaft is arranged in the center of the transverse rod, the top of the rotating shaft is rotationally connected with the bottom of the top plate, and the bottom of the rotating shaft is provided with a rotating shaft. The top of the top plate is provided with a driving device for driving the rotating shaft to rotate, the cross rod is slidably sleeved with a sliding block, the sliding block is provided with a positioning mechanism, a stirring rod is arranged below the sliding block, and the stirring rod is connected with the sliding block through a lifting component. The position of the bottom end of the lifting rod can be adjusted through the lifting component, so that the extraction device is adaptive to filter cups with different sizes and different capacities, the stirring rod is ensured not to be in contact with filter paper, and the applicability of the extraction device is improved.

Description

Technical Field

[0001] The utility model relates to an extraction device, in particular to a coffee extraction device. Background Art

[0002] A common coffee extraction method is to use a funnel-shaped filter cup with filter paper to extract coffee. The filter paper is placed in the filter cup, coffee powder is added to the filter paper, and the coffee is dissolved by intermittently adding hot water to the filter cup. The soluble substances in the coffee are extracted through the filter paper and fall into the cup below. In order to increase the dissolution rate of coffee, a stirring rod is sometimes needed to stir the solution so that the coffee powder and hot water are in full contact. Manual stirring is not only time-consuming and laborious, but the stirring rod may also rub against the filter paper during the stirring process, which can easily cause damage to the filter paper and lead to extraction failure. Therefore, there is a need for an extraction device that can increase the dissolution rate of coffee without damaging the filter paper. Utility Model Content

[0003] In view of this, the technical problem to be solved by the utility model is to provide a coffee extraction device, which can increase the dissolution rate of coffee by stirring without damaging the filter paper, and can also adapt to filter cups of different sizes.

[0004] The technical solution of the utility model is achieved in this way:

[0005] The utility model provides a coffee extraction device, comprising a "C"-shaped casing consisting of a top plate, a bottom plate and side plates, a cross bar is provided below the top plate, a rotating shaft is provided at the center of the cross bar, the top of the rotating shaft is rotatably connected to the bottom of the top plate, a driving device for driving the rotating shaft to rotate is provided on the top of the top plate, a sliding block is provided on the sliding sleeve of the cross bar, a positioning mechanism is provided on the sliding block, a stirring rod is provided below the sliding block, and the stirring rod and the sliding block are connected by a lifting component.

[0006] Preferably, the positioning mechanism comprises a positioning bolt, the side wall of the sliding block is provided with a first threaded hole communicating with the side wall of the cross bar, and the positioning bolt is threadedly connected to the first threaded hole.

[0007] Preferably, the lifting component includes a screw rod, the top of which is fixedly connected to the bottom of the sliding block, a thread groove is opened inwardly from the top center of the stirring rod, and the stirring rod is threadedly connected to the screw rod through the thread groove.

[0008] Preferably, the lifting component includes a fixing rod and an adjusting bolt, a sliding groove matching the fixing rod is opened inward from the top center of the stirring rod, the stirring rod is slidably connected to the fixing rod through the sliding groove, a second threaded hole communicating with the side wall of the fixing rod is opened on the upper side wall of the stirring rod, and the adjusting bolt is threadedly connected to the second threaded hole.

[0009] Preferably, it further comprises a positioning ring, which is arranged below the cross bar, the center of the positioning ring and the axis of the rotating shaft are on the same vertical line, and the positioning ring is fixedly connected to the side plate via a mounting frame.

[0010] Preferably, the driving device is a driving motor, and the rotating shaft is coaxially connected to an output shaft of the driving motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a coffee extraction device, wherein a driving device drives a cross bar to rotate, and the cross bar drives a stirring rod to revolve through a slider, so as to stir the coffee liquid in the filter cup and improve the dissolution speed of the coffee powder. The horizontal position of the stirring rod can be adjusted by the slider, and the farther the slider is from the rotating shaft, the larger the stirring radius is. The bottom end position of the lifting rod can be adjusted by the lifting component, so as to adapt to filter cups of different sizes and capacities, ensure that the stirring rod does not contact the filter paper, and improve the applicability of the extraction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a front structural schematic diagram of the first embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the first embodiment of the present utility model;

[0016] Figure 3 It is a side structural schematic diagram of the lifting component of the second embodiment of the utility model.

[0017] In the figure, 1, top plate; 2, bottom plate; 3, side plate; 4, cross bar; 5, rotating shaft; 6, slider; 7, stirring rod; 8, positioning bolt; 9, screw rod; 10, threaded groove; 11, positioning ring; 12, mounting bracket; 13, driving motor; 14, fixing rod; 15, adjusting bolt; 16, slide groove; 17, filter cup; 18, filter paper; 19, serving cup. DETAILED DESCRIPTION

[0018] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0019] Embodiment 1

[0020] See also Figure 1 to Figure 2 The utility model provides a coffee extraction device, including a "C"-shaped casing composed of a top plate 1, a bottom plate 2 and a side plate 3, a cross bar 4 is provided below the top plate 1, a rotating shaft 5 is provided at the center of the cross bar 4, the top of the rotating shaft 5 is rotatably connected to the bottom of the top plate 1, a driving device for driving the rotating shaft 5 to rotate is provided on the top of the top plate 1, a sliding block 6 is provided on the sliding block 6, a positioning mechanism is provided, a stirring rod 7 is provided below the sliding block 6, and the stirring rod 7 is connected to the sliding block 6 through a lifting component.

[0021] Before extraction, the filter cup 17 with the filter paper 18 installed is placed on the top of the bottom plate 2, and the stirring rod 7 is driven to the top of the filter cup 17 by the slider 6. The stirring rod 7 is moved down to the inside of the filter cup 17 by the lifting component, and it is ensured that the stirring rod 7 does not contact the filter paper 18. Then the driving device is started to drive the cross bar 4 to rotate, and the cross bar 4 drives the stirring rod 7 to revolve through the slider 6 to stir the coffee liquid in the filter cup 17 and improve the dissolution speed of the coffee powder. The horizontal position of the stirring rod 7 can be adjusted by the slider 6. The farther the slider 6 is from the rotating shaft 5, the larger its stirring radius. The bottom end position of the lifting rod can be adjusted by the lifting component, so as to adapt to filter cups 17 of different sizes and capacities, thereby improving the applicability of the extraction device.

[0022] The positioning mechanism includes a positioning bolt 8. The side wall of the sliding block 6 is provided with a first threaded hole communicating with the side wall of the cross bar 4. The positioning bolt 8 is threadedly connected to the first threaded hole.

[0023] The lifting component includes a screw rod 9 , the top of which is fixedly connected to the bottom of the slider 6 , and a thread groove 10 is provided inwardly from the top center of the stirring rod 7 , through which the stirring rod 7 is threadedly connected to the screw rod 9 .

[0024] It also includes a positioning ring 11 , which is arranged below the cross bar 4 . The center of the positioning ring 11 and the axis of the rotating shaft 5 are on the same vertical line. The positioning ring 11 is fixedly connected to the side plate 3 via a mounting frame 12 .

[0025] The driving device is a driving motor 13 , and the rotating shaft 5 is coaxially connected to an output shaft of the driving motor 13 .

[0026] The funnel-shaped filter cup 17 is stuck on the positioning ring 11. The filter cup 17 is coaxial with the rotating shaft 5, so that the stirring rod 7 can revolve around the center of the filter cup 17, avoiding the deviation of the filter cup 17 and causing the stirring rod 7 to contact the filter paper 18 during the rotation process. The positioning ring 11 can quickly align filter cups 17 of different sizes. The side wall of the crossbar 4 is squeezed by tightening the positioning bolt 8, so as to achieve the positioning effect of the slider 6; the stirring rod 7 can be driven to move up and down by rotating it, and the position of the bottom end of the stirring rod 7 in the vertical direction can be adjusted.

[0027] Embodiment 2

[0028] See also Figure 3 The difference between this embodiment and the first embodiment is that the lifting component includes a fixing rod 14 and an adjusting bolt 15, a slide groove 16 matching the fixing rod 14 is provided inwardly from the top center of the stirring rod 7, the stirring rod 7 is slidably connected with the fixing rod 14 through the slide groove 16, a second threaded hole communicating with the side wall of the fixing rod 14 is provided on the upper side wall of the stirring rod 7, and the adjusting bolt 15 is threadedly connected with the second threaded hole. By loosening the adjusting bolt 15, the stirring rod 7 can slide up and down along the fixing rod 14; by tightening the adjusting bolt 15, the current position of the stirring rod 7 can be fixed, so as to achieve the lifting and fixing effect of the stirring rod 7.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coffee extraction device, comprising a "C"-shaped housing consisting of a top plate, a bottom plate and side plates, characterized in that: A cross bar is provided below the top plate, a rotating shaft is provided at the center of the cross bar, the top of the rotating shaft is rotatably connected to the bottom of the top plate, a driving device for driving the rotating shaft to rotate is provided on the top of the top plate, a sliding block is provided on the sliding sleeve of the cross bar, a positioning mechanism is provided on the sliding block, a stirring rod is provided below the sliding block, and the stirring rod and the sliding block are connected by a lifting component.

2. A coffee extraction device according to claim 1, characterized in that: The positioning mechanism comprises a positioning bolt, a side wall of the sliding block is provided with a first threaded hole communicating with a side wall of the cross bar, and the positioning bolt is threadedly connected with the first threaded hole.

3. A coffee extraction device according to claim 2, characterized in that: The lifting component comprises a screw rod, the top of which is fixedly connected to the bottom of the sliding block, a thread groove is provided inwardly from the top center of the stirring rod, and the stirring rod is threadedly connected to the screw rod through the thread groove.

4. The coffee extraction device according to claim 2, characterized in that: The lifting component includes a fixed rod and an adjusting bolt. A sliding groove matching the fixed rod is opened inward from the top center of the stirring rod. The stirring rod is slidably connected to the fixed rod through the sliding groove. A second threaded hole communicating with the side wall of the fixed rod is opened on the upper side wall of the stirring rod. The adjusting bolt is threadedly connected to the second threaded hole.

5. The coffee extraction device according to claim 1, characterized in that: It also includes a positioning ring, which is arranged below the cross bar. The center of the positioning ring and the axis of the rotating shaft are on the same vertical line. The positioning ring is fixedly connected to the side plate through a mounting frame.

6. The coffee extraction device according to claim 1, characterized in that: The driving device is a driving motor, and the rotating shaft is coaxially connected to an output shaft of the driving motor.

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