Powder pressing device and coffee machine

Abstract

The utility model discloses a powder pressing device which comprises a machine body, the machine body is provided with a shell and a support capable of supporting a funnel, and the support is located below the shell; the motor is fixedly arranged on the shell; the upper part of the rotating frame is in transmission connection with a rotating shaft of the motor and is driven by the motor to move up and down, the lower part of the rotating frame is screwed with the shell, and the lower end of the rotating frame is provided with a powder pressing head which can extend into the bracket and is in contact with a funnel supported on the bracket. Compared with the prior art, the powder pressing device has the advantages of being balanced in powder pressing pressure distribution and good in powder pressing effect. The utility model further provides the coffee machine, the powder pressing device is integrated on the coffee machine, and the coffee machine has the advantages that the structure of the coffee machine is compact, and the added value of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a powder pressing device and a coffee machine. Background Art

[0002] The Chinese utility model patent with announcement number CN220192843U discloses a powder pressing mechanism and its cooking utensil, the powder pressing mechanism includes a accommodating bin, a powder cup, a drive assembly and a powder pressing assembly, the accommodating bin is provided with a accommodating chamber with an open end, the powder pressing assembly includes a powder pressing seat, the powder pressing seat is arranged in the accommodating chamber so that the powder cup containing the powdered substance has a closed environment, the drive assembly is connected to the powder pressing seat, the powder cup is detachably connected to the open end of the accommodating chamber, the powder pressing seat and the powder cup are arranged corresponding to the powder cup, and the drive assembly is used to drive the powder pressing seat to move in a vertical direction so that the powder pressing seat is in contact with the cup mouth of the powder cup, so that the powder pressing seat moves to the powder cup. The driving assembly includes a mounting frame, a motor, a gear set and a screw rod. The mounting frame is fixedly connected to the accommodating chamber, a mounting cavity is provided on the mounting frame, the gear set is located in the mounting cavity, the motor is connected to the gear set, the gear set is connected to the screw rod, the motor is used to drive the gear set to rotate, and the powder pressing seat is slidingly connected to the screw rod. The driving assembly includes a screw rod nut column, the screw rod nut column is adapted to the screw rod, and the thread of the screw rod nut column is adapted to the thread of the screw rod. When the screw rod rotates, the relative rotation between the screw rod nut column and the screw rod is converted into the movement of the screw rod nut column in the vertical direction, thereby realizing the screw rod nut column along the vertical direction. The first sliding seat and the second sliding seat are connected to the powder pressing plate, and the first sliding seat and the second sliding seat are both connected to the powder pressing seat body, and the first sliding seat and the second sliding seat are both arranged at the middle and upper position of the powder pressing seat body, and the first sliding seat and the second sliding seat are symmetrically arranged with respect to the powder pressing seat body, and the first sliding seat and the second sliding seat are both cylindrical in shape with openings at both ends, the first sliding seat is connected to the screw nut column, and the second sliding seat is connected to the limit rod, so that the rotation of the screw is converted into the movement of the first sliding seat in the vertical direction, thereby driving the movement of the powder pressing seat body, the second sliding seat and the powder pressing plate in the vertical direction. The order of transmitting the driving force of the powder pressing mechanism is: from the screw to the screw nut column, from the screw nut column to the first sliding seat, from the first sliding seat to the powder pressing seat body, and finally from the powder pressing seat body to the second sliding seat. Therefore, when the powder pressing seat body presses the powder, the pressure on the side of the powder pressing seat body close to the first sliding seat is greater than the side pressure on the side of the powder pressing seat body close to the second sliding seat. There is a disadvantage that the powder pressing pressure distribution is relatively uneven and the powder pressing effect is poor. Utility Model Content

[0003] The purpose of the utility model is to provide a powder pressing device with more balanced powder pressing pressure distribution and good powder pressing effect, which is used to solve the above technical problems.

[0004] The utility model provides a powder pressing device, comprising: a machine body, on which a shell and a bracket for supporting a funnel are provided, the bracket being located below the shell; and a motor, which is fixed to the shell.

[0005] The upper part of the rotating frame is connected to the rotating shaft of the motor and is driven by the motor to move up and down. The lower part of the rotating frame is screwed to the shell. The lower end of the rotating frame is provided with a powder pressing head that can extend into the bracket and contact the funnel supported on the bracket.

[0006] Preferably, the outer side of the rotating frame is provided with an external thread, the housing is provided with a sleeve for the rotating frame to pass through, the inner side of the sleeve is provided with an internal thread, and the external thread of the rotating frame is threadedly connected to the internal thread of the sleeve.

[0007] Preferably, a first gear is provided on the rotating shaft of the motor, a second gear is provided on the upper portion of the rotating frame, and the first gear is transmission-connected to the second gear.

[0008] Preferably, a transmission gear set is further provided between the first gear and the second gear, and the transmission gear set is transmission-connected to the first gear and the second gear respectively.

[0009] Preferably, the transmission gear set includes a third gear, a fourth gear, a fifth gear and a sixth gear, the third gear and the fourth gear are fixed to each other as a whole, the first gear is engaged with the third gear, the fourth gear is engaged with the fifth gear, the fifth gear is engaged with the sixth gear, and the sixth gear is engaged with the second gear.

[0010] Preferably, the third gear, the fourth gear, the fifth gear and the sixth gear are all pivotally connected to the housing; the number of teeth of the first gear, the fourth gear and the sixth gear are all less than the number of teeth of the second gear, the third gear and the fifth gear.

[0011] Preferably, a positioning sleeve and a limiting bracket are provided on the upper end of the rotating frame. The limiting bracket is pivotally connected to the upper end of the rotating frame and the positioning sleeve respectively. The positioning sleeve is fixedly connected to the upper end of the rotating frame.

[0012] Preferably, a first slide groove and a second slide groove are respectively provided on both sides of the shell, and a first extension arm that can extend into and slide in the first slide groove and a second extension arm that can extend into and slide in the second slide groove are correspondingly provided on both sides of the limiting bracket.

[0013] Preferably, the upper end of the shell is provided with a first micro switch, a slider that can contact the positioning sleeve and a first spring, one end of the first spring is pressed on the shell, and the other end is pressed on the slider, and the slider is provided with a top rod that can trigger the micro switch; the lower end of the shell is provided with a second micro switch and a switch bracket, the switch bracket is provided with an elastic arm that is squeezed by the second extension arm to trigger the micro switch and a second spring, and the second spring is pressed on the elastic arm.

[0014] Compared with the prior art, the powder pressing device of the present invention is driven to rotate by the motor through the transmission connection between the upper part of the rotating frame and the rotating shaft of the motor, and the lower part of the rotating frame is screwed to the shell. When the motor is energized and rotated forward, it drives the rotating frame to rotate relative to the shell. Since the lower part of the rotating frame is screwed to the shell and the shell is fixed, the rotating frame will move downward and extend into the bracket when it rotates, allowing the powder pressing head to contact the funnel supported on the bracket to press the coffee powder in the funnel; after the pressing is completed, the motor will reverse and drive the rotating frame to rotate relative to the shell and move upward to leave the funnel and the bracket. The rotating frame is screwed to the shell as a whole, and the powder pressing driving force of the rotating frame is more evenly distributed, so that the pressure distribution of the powder pressing head on the coffee powder is also more evenly distributed, which has the advantages of more even powder pressing pressure distribution and better powder pressing effect.

[0015] The utility model also provides a coffee machine. One side of the coffee machine is provided with a brewer for brewing coffee powder in a funnel, and the other side of the coffee machine is provided with the aforementioned powder pressing device.

[0016] Compared with the prior art, the coffee machine of the present invention integrates a powder pressing device into the coffee machine. In addition to the advantages of the aforementioned powder pressing device, it also has the advantages of making the coffee machine compact and improving the added value of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a powder pressing device of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram after removing the body, funnel and bracket;

[0019] Figure 3 for Figure 2 A three-dimensional schematic diagram with the upper cover of the housing removed;

[0020] Figure 4 for Figure 2 A three-dimensional view after removing the shell;

[0021] Figure 5 for Figure 2 a sectional perspective view of

[0022] Figure 6 A three-dimensional diagram of a rotating frame, a positioning sleeve and a limiting bracket assembled together;

[0023] Figure 7 This is a three-dimensional schematic diagram of a coffee machine of the present invention;

[0024] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0029] like Figures 1 to 6As shown, a powder pressing device of the present invention includes: a body 1, a shell 2 and a bracket 4 for supporting a funnel 3 are provided on the body 1, and the bracket 4 is located below the shell 2; a motor 5, which is fixed to the shell 2; a rotating frame 6, the upper part of the rotating frame 6 is transmission-connected to the rotating shaft 51 of the motor 5 and is driven to rotate by the motor 5, the lower part of the rotating frame 6 is screwed to the shell 2, and the lower end of the rotating frame 6 is provided with a powder pressing head 7 that can extend into the bracket 4 and contact the funnel 3 supported on the bracket 4. Compared with the prior art, the powder pressing device of the present invention is driven to rotate by the motor 5 through the transmission connection between the upper part of the rotating frame 6 and the rotating shaft of the motor 5. The lower part of the rotating frame 6 is screwed to the shell 2. When the motor 5 is energized and rotates forward, it drives the rotating frame 6 to rotate relative to the shell 2. Since the lower part of the rotating frame 6 is screwed to the shell 2 and the shell 2 is fixed, the rotating frame 6 will move downward and extend into the bracket 4 when it rotates, allowing the powder pressing head 7 to contact the funnel 3 supported on the bracket 4 to press the coffee powder in the funnel 3; after the pressing is completed, the motor 5 will reverse and drive the rotating frame 6 to rotate relative to the shell 2 and move upward to leave the funnel 3 and the bracket 4. The rotating frame 6 is screwed to the shell 2 as a whole. The powder pressing driving force of the rotating frame 6 is more evenly distributed, so that the pressure distribution of the powder pressing head 7 pressing the coffee powder is also more evenly distributed, which has the advantages of more even powder pressing pressure distribution and better powder pressing effect.

[0030] Furthermore, an external thread 61 is provided on the outer side of the rotating frame 6, and a sleeve 21 is provided on the housing 2 for the rotating frame 6 to pass through. An internal thread 22 is provided on the inner side of the sleeve 21, and the external thread 61 of the rotating frame 6 is screwed with the internal thread 22 of the sleeve 21.

[0031] Specifically, a first gear 51 is provided on the rotating shaft of the motor 5, and a second gear 62 is provided on the upper portion of the rotating frame 6. The first gear 51 is in transmission connection with the second gear 62. A transmission gear set is provided between the first gear 51 and the second gear 62, and is in transmission connection with the first gear 51 and the second gear 62, respectively. The transmission gear set includes a third gear 52, a fourth gear 53, a fifth gear 54, and a sixth gear 55. The third gear 52 and the fourth gear 53 are fixed to each other as a whole. The first gear 51 meshes with the third gear 52, the fourth gear 53 meshes with the fifth gear 54, the fifth gear 54 meshes with the sixth gear 55, and the sixth gear 55 meshes with the second gear 62. The third gear 52, the fourth gear 53, the fifth gear 54, and the sixth gear 55 are all pivotally connected to the housing 2. The number of teeth on the first gear 51, the fourth gear 53, and the sixth gear 55 is less than the number of teeth on the second gear 62, the third gear 52, and the fifth gear 54.

[0032] The upper end of the rotating frame 6 is provided with a positioning sleeve 63 and a limiting bracket 64, and the limiting bracket 64 is pivotally connected to the upper end of the rotating frame 6 and the positioning sleeve 63 respectively (as shown in FIG. Figure 6As shown, the positioning sleeve 63 is fixedly connected to the upper end of the rotating frame 6 by screws 65. The first slide groove 23 and the second slide groove 24 are respectively provided on both sides of the housing 2. The first extension arm 66 that can extend into the first slide groove 23 and slide in the first slide groove 23 and the second extension arm 67 that can extend into the second slide groove 24 and slide in the second slide groove 24 are respectively provided on both sides of the limiting bracket 64 (as shown in FIG. Figure 5 As the rotating frame 6 rotates and moves up and down simultaneously, the positioning sleeve 63 and the limiting bracket 64 also move up and down with the rotating frame 6. The positioning sleeve 63 rotates together with the rotating frame 6, while the limiting bracket 64 does not rotate because its first extension arm 66 extends into the first chute 23 and its second extension arm 67 extends into the second chute 24. The limiting bracket 64 limits the position of the rotating frame 6, ensuring smooth rotation and vertical movement of the rotating frame 6 with minimal shaking.

[0033] More specifically, the upper end of the shell 2 is provided with a first microswitch 8, a slider 25 that can contact the positioning sleeve 63, and a first spring 26. One end of the first spring 26 is pressed on the shell 2, and the other end is pressed on the slider 25. The slider 25 is provided with a top rod 251 that can trigger the microswitch 8; the lower end of the shell 2 is provided with a second microswitch 9 and a switch bracket 27. The switch bracket 27 is provided with an elastic arm 271 that is squeezed by the second extension arm 67 to trigger the microswitch, and a second spring 28. The second spring 28 is pressed on the elastic arm 271. When the rotating frame 6 is in the initial position, the push rod 251 of the slider 25 squeezes the first micro switch 8, and the first micro switch 8 is in the closed state. When the motor 5 is powered on and rotated, it drives the rotating frame 6 to rotate and move downward. After the rotating frame 6 moves downward, the positioning sleeve 63 no longer squeezes the slider 25, and the slider 25 is reset under the spring force of the first spring 26. When the slider 25 is reset, the push rod 251 no longer squeezes the first micro switch 8, and the first micro switch 92 changes from the closed state to the open state; when the rotating frame 6 moves downward to the second extension arm 67, squeezing the second micro switch 9 so that the second micro switch 9 changes from the closed state to the open state, the motor 5 stops working.

[0034] In addition, the housing 2 is provided with an upper cover 20 fixed at the upper end and a lower cover 29 fixed at the lower end, the first micro switch 8, the slider 25 and the first spring 26 are installed on the upper cover 20, the second micro switch 9 and the switch bracket 27 are installed on the lower cover 29, and the sleeve 21 is also provided on the lower cover 29.

[0035] like Figure 7 As shown, the present invention also provides a coffee machine having a brewer 11 on one side for brewing coffee powder in a hopper 3, and a powder tamping device as described above on the other side. Compared to the prior art, the coffee machine of the present invention integrates the powder tamping device into the coffee machine. In addition to the advantages of the aforementioned powder tamping device, it also has the advantages of a more compact structure and increased product added value.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powder pressing device, characterized in that: include: A machine body, wherein the machine body is provided with a shell and a bracket for supporting the funnel, the bracket being located below the shell; a motor, wherein the motor is fixed to the housing; The upper part of the rotating frame is connected to the rotating shaft of the motor and is driven by the motor to move up and down. The lower part of the rotating frame is screwed to the shell. The lower end of the rotating frame is provided with a powder pressing head that can extend into the bracket and contact the funnel supported on the bracket.

2. A powder pressing device according to claim 1, characterized in that: The outer side of the rotating frame is provided with an external thread, the housing is provided with a sleeve through which the rotating frame can pass, the inner side of the sleeve is provided with an internal thread, and the external thread of the rotating frame is screwed with the internal thread of the sleeve.

3. A powder pressing device according to claim 1, characterized in that: A first gear is provided on the rotating shaft of the motor, a second gear is provided on the upper portion of the rotating frame, and the first gear is transmission-connected with the second gear.

4. A powder pressing device according to claim 3, characterized in that: A transmission gear set is further provided between the first gear and the second gear, and the transmission gear set is transmission-connected to the first gear and the second gear respectively.

5. A powder pressing device according to claim 4, characterized in that: The transmission gear set includes a third gear, a fourth gear, a fifth gear and a sixth gear. The third gear and the fourth gear are fixed to each other as a whole. The first gear is engaged with the third gear, the fourth gear is engaged with the fifth gear, the fifth gear is engaged with the sixth gear, and the sixth gear is engaged with the second gear.

6. A powder pressing device according to claim 5, characterized in that: The third gear, the fourth gear, the fifth gear and the sixth gear are all pivotally connected to the housing, and the number of teeth of the first gear, the fourth gear and the sixth gear are all less than the number of teeth of the second gear, the third gear and the fifth gear.

7. The powder pressing device according to claim 1, characterized in that: The upper end of the rotating frame is provided with a positioning sleeve and a limiting bracket, the limiting bracket is pivotally connected to the upper end of the rotating frame and the positioning sleeve respectively, and the positioning sleeve is fixedly connected to the upper end of the rotating frame.

8. A powder pressing device according to claim 7, characterized in that: The shell is provided with a first slide groove and a second slide groove on both sides respectively, and the limiting bracket is provided with a first extension arm that can extend into and slide in the first slide groove and a second extension arm that can extend into and slide in the second slide groove on both sides respectively.

9. The powder pressing device according to claim 7, characterized in that: The upper end of the shell is provided with a first micro switch, a slider that can contact the positioning sleeve, and a first spring. One end of the first spring is pressed on the shell, and the other end is pressed on the slider. The slider is provided with a push rod that can trigger the micro switch; the lower end of the shell is provided with a second micro switch and a switch bracket. The switch bracket is provided with an elastic arm and a second spring that is squeezed by the second extension arm to trigger the micro switch, and the second spring is pressed on the elastic arm.

10. A coffee machine, characterized in that: One side of the coffee machine is provided with a brewer for brewing coffee powder in the funnel, and the other side of the coffee machine is provided with a powder pressing device according to any one of claims 1 to 9.

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