CN211985120U

CN211985120U - Constant pressure type coffee powder pressing device

Info

Publication number: CN211985120U
Application number: CN202020519217.4U
Authority: CN
Inventors: 王嘉铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-24
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to a constant pressure formula coffee powder pressing device belongs to mechanical equipment technical field. The main technical scheme is that the device comprises a supporting seat, a foundation pressing powder, a handle and a constant force mechanism; the handle and the constant force mechanism are connected into an integral structure through threads, the bearing push rod is positioned in the through hole of the constant force mechanism, and the bearing push rod is connected with the powder pressing bottom through threads; constant force mechanism include activity gland, recess A, with recess A relative opening, through-hole and bearing push rod cooperation, the loose axle that passes the bearing is located recess A, the bearing surface contacts with the bearing push rod, activity gland be equipped with the recess B that is greater than the bearing width, activity gland press in the top of loose axle. The utility model discloses guaranteed the uniformity of pressing the powder at every turn, the error that the manual operation brought when having got rid of with ordinary powder hammer even can accomplish the powder pressing effect completely unanimous with skilled coffeemaker to the new hand unskilled of pressing the powder. Simple structure, the processing degree of difficulty is low, and the operation degree of difficulty is low.

Description

Constant pressure type coffee powder pressing device

Technical Field

The utility model belongs to the technical field of mechanical equipment, specifically be a constant pressure formula coffee powder pressing device.

Background

Currently, brewing a cup of mellow coffee generally comprises the following steps: firstly, grinding coffee beans into powder by a bean grinding machine, then pouring the powder into a powder bowl, flattening the powder by a powder pressing device matched with the powder bowl, and finally brewing the coffee into coffee by a coffee machine, thereby being convenient for people to drink.

In the coffee making process, grinding and brewing are basically automated and operated by numerical control, only the step of pressing the powder is still manually handled.

The powder pressing is an important step in the preparation process of Espresso (Espresso), and the specific process is that ground coffee powder is put into a brewing handle, the coffee powder is pressed flat by a coffee powder pressing device to form a flat and solid horizontal plane, and then the brewing handle is arranged on a coffee machine to extract the coffee powder.

The step of manual powder pressing is troubled by both novices and experienced coffeemakers, because the working face of the powder pressing is easy to deflect in the process that a handle of a traditional powder pressing device presses downwards, the operation force of the powder pressing cannot guarantee that the pressure is constant every time, the uniformity of the coffee powder is different because the pressure of the powder pressing is different every time, the uniform coffee powder is one of important factors for determining the delicacy of a cup of coffee, and if the particle density of the coffee powder is loose, the coffee powder can be easily brewed into coffee with sour or light taste; if the coffee powder has too dense a particle density, it will tend to brew coffee with a bitter or burnt taste.

Aiming at the problem that the traditional powder pressing device can not ensure that the powder pressing working face is under constant pressure, two constant-pressure powder pressing devices are available on the market. The first is a limited stroke type of powder press which achieves a constant pressure by adjusting the depth of pressing into the powder bowl, and in fact, if the powder amount is not certain to be consistent, a predetermined pressure cannot be guaranteed, and the feedback pressure is not from the surface of the coffee powder and cannot give a definite force feedback. Strictly speaking, such powder presses are only called fixed stroke powder presses. The second is spring pressure level pressure powder pressing device, and this kind of powder pressing device realizes the level force through the handle and bottom collision of built-in single spring compression, judges handle "pressing to the end" through user's feeling impression during the operation, if the user still continues to press when feeling to the end, will increase pressure, if not stop when reaching the end, will reduce pressure, receives the human interference factor very big and comparatively difficultly during the operation. In fact, the two kinds of powder compactors do not calculate constant pressure, and only the powder compactor which takes the pressure acting on the surface of the coffee powder as the set pressure and is not limited by the powder quantity in the powder compacting process and is not interfered by human factors after the preset pressure is finally reached can be called as the constant pressure powder compactor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a constant pressure type coffee powder pressing device. The technical scheme of the utility model as follows: a constant pressure type coffee powder pressing device comprises a supporting seat, a powder pressing foundation, a handle and a constant force mechanism; the handle and the constant force mechanism are connected into an integral structure through threads, the bearing push rod is positioned in the through hole of the constant force mechanism, and the bearing push rod is connected with the powder pressing bottom through threads;

the constant force mechanism comprises a movable gland, a groove A, an opening opposite to the groove A and a through hole, the through hole is matched with the bearing push rod, a movable shaft penetrating through the bearing is positioned in the groove A, the surface of the bearing is contacted with the bearing push rod, the movable gland is provided with a groove B which is larger than the width of the bearing, and the movable gland is pressed above the movable shaft;

the bearing push rod is a reducing shaft, and the outer side of the bearing push rod is provided with a supporting spring.

Further, the number of the grooves A is two.

The utility model has the advantages as follows: the utility model discloses guaranteed the uniformity of pressing the powder at every turn, the error that the manual operation brought when having got rid of with ordinary powder hammer even can accomplish the powder pressing effect completely unanimous with skilled coffeemaker to the new hand unskilled of pressing the powder. Simple structure, the processing degree of difficulty is low, and the operation degree of difficulty is low.

Drawings

FIG. 1 is a schematic view of a powder compactor;

FIG. 2 is a constant force mechanism trigger state;

FIG. 3 is a schematic view of a constant force mechanism;

FIG. 4 shows the internal structure of the constant force mechanism;

fig. 5 is a constant force trigger device.

Wherein: 1. the constant force mechanism comprises a constant force mechanism 2, a bearing 3, a movable gland 4, a bearing push rod 5, a powder pressing bottom 6, a supporting seat 7, a movable shaft 8, an adjusting nut 9, a handle 10, grooves A and 20, a supporting spring 21 and a constant force spring.

Detailed Description

As shown in fig. 1 to 5, a constant pressure type coffee powder press comprises a supporting base 6, a powder pressing base 5, a handle 9 and a constant force mechanism 1; the handle 9 and the constant force mechanism 1 are connected into an integral structure through threads, the bearing push rod 4 is positioned in a through hole of the constant force mechanism 1, and the bearing push rod 4 is connected with the powder pressing bottom 5 through threads; the constant force mechanism 1 comprises a movable gland 3, a groove A10, an opening opposite to the groove A10 and a through hole, the through hole is matched with a bearing push rod 4, a movable shaft 7 penetrating through a bearing 2 is positioned in the groove A10, the surface of the bearing 2 is contacted with the bearing push rod 4, the movable gland 3 is provided with a groove B with the width larger than that of the bearing 2, and the movable gland 3 is pressed above the movable shaft 7; the bearing is characterized in that a constant force spring 21 is arranged above the movable gland 3, an adjusting nut 8 is arranged above the constant force spring 21, the bearing push rod 4 is a reducing shaft, and a supporting spring 20 is arranged on the outer side of the bearing push rod 4.

The utility model discloses an implementation: make when using and press in foundation make-up 5 can put into the coffee powder bowl, its diameter just matches with the powder bowl, and 6 diameters of supporting seat are greater than the coffee powder bowl, and the powder ware can be located in powder bowl top, and supporting seat 6 can not remove and guaranteed the verticality of pushing down the in-process when pushing down, realizes the roughness of powder process. The handle 9 and the constant force mechanism 1 are connected into a whole through threads and can move up and down in the supporting seat 6. The handle 9 is pressed by hand to drive the constant force mechanism 1 to move downwards together, and the constant force mechanism 1 drives the bearing push rod 4 and the powder pressing bottom 5 in threaded connection with the bearing push rod 4 to move downwards until the surface of the coffee powder.

The constant force mechanism 1 is respectively provided with two grooves A10 which are inclined upwards by 45 degrees and an opening which is opposite to the two grooves A10 by 90 degrees, and is provided with a through hole which is matched with the diameter of the bearing push rod 4, and the bearing push rod 4 can pass through the through hole to move up and down. A movable shaft 7 passing through the bearing 2 is respectively arranged in the two grooves A10 and can move along the groove A10 in the 45-degree oblique upward direction, the bearing 2 is arranged in the opening, and the surface of the bearing 2 is contacted with the bearing push rod 4. A movable gland 3 is arranged in the constant force mechanism 1, a groove B which is larger than the width of the bearing 2 is arranged in the middle of the gland, and the movable gland 3 can be directly pressed on the movable shaft 7.

A constant force spring 21 is arranged on the movable gland 3 to press the movable gland 3. The movable gland 3 compresses the movable shaft 7, so that the movable shaft 7 cannot move along the groove A10. The bearing push rod 4 is a reducing shaft with the diameter of the upper part gradually increased and the diameter of the lower part unchanged, and when the constant force mechanism 1 is pressed down, the movable shaft 7 cannot move, the bearing 2 penetrated by the movable shaft 7 can apply a downward force to the bearing push rod 4 to clamp the bearing push rod 4 to move downwards together until the powder foundation 5 contacts coffee powder. When the powder foundation 5 compacts the coffee powder and cannot move downwards continuously, the bearing 2 is pushed away towards two sides by the gradually enlarged straight shaft, the movable shaft 7 moves towards 45 degrees along the groove A10 due to the limitation of the groove A10, and the movable gland 3 is jacked up against the force of the constant force spring 21. And the bearing 2 is not pushed continuously until the bearing 2 reaches the maximum diameter of the bearing push rod 4, and no matter how much force is applied to the constant force mechanism 1, downward force cannot be applied to the bearing push rod 4, and force cannot be applied to the powder pressing bottom 5, so that the powder pressing action is completed. The spring force overcome here can be varied by adjusting the adjusting nut 8 to vary the spring preload. After the powder pressing is finished, the supporting spring 20 jacks up the constant force mechanism 1 until the constant force mechanism recovers to the original state.

Finally, the force is the same and level when the powder is pressed each time, the pressing force is not interfered by the powder amount and human factors and is only related to the force of the adjusted constant force spring 21.

The foregoing examples are provided for illustration and description of the invention only and are not intended to limit the invention to the scope of the described examples. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed.

Claims

1. A constant pressure type coffee powder pressing device is characterized by comprising a supporting seat (6), a powder pressing bottom (5), a handle (9) and a constant force mechanism (1); the handle (9) is connected with the constant force mechanism (1) into an integral structure through threads, the bearing push rod (4) is positioned in the through hole of the constant force mechanism (1), and the bearing push rod (4) is connected with the foundation pressing layer (5) through threads;

the constant force mechanism (1) comprises a movable gland (3), a groove A (10), an opening opposite to the groove A (10) and a through hole, the through hole is matched with a bearing push rod (4), a movable shaft (7) penetrating through a bearing (2) is positioned in the groove A (10), the surface of the bearing (2) is contacted with the bearing push rod (4), the movable gland (3) is provided with a groove B larger than the width of the bearing (2), and the movable gland (3) is pressed above the movable shaft (7);

the bearing is characterized in that a constant force spring (21) is arranged above the movable gland (3), an adjusting nut (8) is arranged above the constant force spring (21), the bearing push rod (4) is a reducing shaft, and a supporting spring (20) is arranged on the outer side of the bearing push rod (4).

2. Constant pressure coffee press according to claim 1, characterized in that said recess a (10) is two.