Coffee machine

Abstract

The utility model relates to the field of coffee products, and provides a coffee machine which aims at solving the problem that an existing coffee machine is difficult to operate and control. The cylinder body is mounted on the bracket; the piston assembly is connected with the cylinder body; the ball screw and the sliding block are in threaded fit, the ball screw is installed on the support, and the sliding block is connected with the piston assembly; and the driving piece is connected with the ball screw, the driving piece can drive the ball screw to rotate and enable the sliding block to ascend and descend, and the sliding block drives the piston assembly to ascend and descend in the cylinder body. The ball screw is applied to the coffee machine, so that the coffee machine is simpler to use and operate, and the coffee extraction process is easy to control.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee utensil field, especially a coffee machine. BACKGROUND

[0002] The existing manual coffee machine mainly compresses the coffee powder cake in the powder bowl through the lever straight pressure mode to carry out fusion and extract coffee liquid, the mode needs to press the one end of lever from top to bottom with larger force to complete operation, the operation process is more laborious and the extraction process is not easy to control the pressure in the cylinder, and the use experience is poor. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art is solved, for this purpose, the utility model provides a coffee machine, simple operation and labor saving and coffee extraction process is easy to control.

[0004] The embodiment of the utility model provides a coffee machine, which comprises:

[0005] A support;

[0006] A cylinder body is installed on the support;

[0007] A piston assembly is connected to the cylinder body;

[0008] A ball screw and a sliding block are threadedly connected, the ball screw is installed on the support, and the sliding block is connected to the piston assembly;

[0009] A driving member is connected to the ball screw, the driving member can drive the ball screw to rotate and make the sliding block move up and down, and the sliding block drives the piston assembly to move up and down in the cylinder body.

[0010] The embodiment of the utility model has at least the following beneficial effects:

[0011] The ball screw is applied to the coffee machine, so that the operation of the coffee machine is simpler and the coffee extraction process is easy to control.

[0012] According to some embodiments of the utility model, the coffee machine further comprises:

[0013] A first bevel gear and a second bevel gear are engaged with each other, the second bevel gear has more teeth than the first bevel gear, the axes of the first bevel gear and the second bevel gear are perpendicular to each other, the first bevel gear is connected to the driving member, and the second bevel gear is arranged on an extension shaft part extending downward from the bottom of the ball screw;

[0014] The driving member is a hand crank coaxially connected to the first bevel gear.

[0015] According to some embodiments of the utility model, the driving member is a motor;

[0016] The motor is arranged below the ball screw.

[0017] According to some embodiments of the present application, the coffee machine further comprises:

[0018] The guide block and the guide rail are connected with the sliding block at one end and the bracket at the other end.

[0019] According to some embodiments of the present application, the sliding block comprises:

[0020] The sleeve part is connected with the ball screw;

[0021] The cantilever part extends from the sleeve part and is located above the cylinder, and the cantilever part is connected with the piston assembly.

[0022] According to some embodiments of the present application, the coffee machine further comprises:

[0023] The connecting rod is located between the piston assembly and the cantilever part, and the connecting rod is hingedly connected with the piston assembly and the cantilever part at both ends.

[0024] According to some embodiments of the present application, the bracket comprises an upper mounting plate and a lower mounting plate, a first inner cavity is formed between the upper mounting plate and the lower mounting plate, and a second inner cavity is formed below the lower mounting plate;

[0025] The ball screw and the sliding block are arranged in the first inner cavity, and the upper and lower ends of the ball screw are mounted on the upper mounting plate and the lower mounting plate, respectively.

[0026] The first bevel gear and the second bevel gear are arranged in the second inner cavity, and the extension shaft part at the lower end of the ball screw passes through the lower mounting plate and enters the second inner cavity to connect the second bevel gear.

[0027] According to some embodiments of the present application, the hand crank comprises:

[0028] The shaft part passes through the bracket, and the inner end of the shaft part is connected with the first bevel gear;

[0029] The crank part extends radially outward from the outer end of the shaft part;

[0030] The hand holding part extends axially outward from the centrifugal position of the crank part;

[0031] The inner end and the outer end of the position where the shaft part passes through the bracket are both provided with bearings.

[0032] According to some embodiments of the present application, the bracket further comprises:

[0033] The cylinder is arranged in the cylinder and divides the space in the cylinder into the first inner cavity and the second inner cavity, the upper end of the first inner cavity is provided with an upper opening, the lower end of the second inner cavity is provided with a lower opening, and the upper mounting plate is detachably mounted at the upper opening position.

[0034] According to some embodiments of the utility model, the support further comprises:

[0035] The top cover is detachably installed at the upper opening position and is used for closing the upper opening.

[0036] The bottom plate is detachably installed at the lower opening position and is used for closing the lower opening.

[0037] The cylinder body is in the shape of a rotational body with a double-curved cross section.

[0038] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0039] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description of the embodiments, in conjunction with the accompanying drawings, in which:

[0040] Figure 1 It is the structure schematic diagram of the perspective 1 of coffee machine embodiment of the utility model;

[0041] Figure 2 It is the structure schematic diagram of the perspective 2 of coffee machine embodiment of the utility model;

[0042] Figure 3 It is the structure schematic diagram of the partial structure of coffee machine embodiment of the utility model;

[0043] Figure 4 It is the explosion structure schematic diagram of the partial structure of coffee machine embodiment of the utility model;

[0044] Figure 5 It is the internal structure schematic diagram of the partial structure of coffee machine embodiment of the utility model.

[0045] Reference signs:

[0046] Upper mounting plate 110, lower mounting plate 120, first inner cavity 130, second inner cavity 140, cylinder body 150, top cover 160, bottom plate 170;

[0047] Cylinder body 200;

[0048] Piston assembly 300;

[0049] Ball screw 400, extension shaft part 410;

[0050] Slide block 500, sleeve part 510, cantilever part 520;

[0051] First bevel gear 610, second bevel gear 620;

[0052] Hand crank 700, shaft rod part 710, crank part 720, hand holding part 730, bearing 740;

[0053] Guide block 810, guide rail 820;

[0054] Connecting rod 900. DETAILED DESCRIPTION

[0055] The following will describe several embodiments of the present application, including the corresponding embodiments of the drawings, it can be understood that the drawings are used to assist understanding the technical features and technical solutions of the present application, and should not be understood as limiting the scope of protection of the present application.

[0056] The following will combine the embodiments and the drawings to clearly and completely describe the concept, specific structure and technical effects of the present application, so as to fully understand the purpose, scheme and effect of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0057] It should be noted that, unless otherwise explicitly limited, when a certain feature is referred to as "fixed", "connected", "installed" on another feature, it can be directly fixed, connected on another feature, or indirectly fixed, connected on another feature, "fixed", "connected", "installed" and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0058] It should be noted that the directions or positional relationships described in the present application, such as up, down, left, right, top, bottom, front, back, inside and outside, are based on the directions or positional relationships of the drawings or embodiments, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation of the present application.

[0059] It should be noted that the term "and / or" used in the present application includes any combination of one or more related listed items, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. Understand as not including the number, above, below, within, etc. Understand as including the number.

[0060] It should be noted that in the present application, the first and second are only used to distinguish the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the present technology.

[0062] The basic embodiment of the present application proposes a coffee machine, which refers to Figures 1-5 , comprising:

[0063] a bracket;

[0064] a cylinder body 200 installed on the bracket;

[0065] a piston assembly 300 connected to the cylinder body 200;

[0066] a ball screw 400 and a sliding block 500 in threaded cooperation, the ball screw 400 is installed on the bracket, and the sliding block 500 is connected to the piston assembly 300;

[0067] a driving member connected to the ball screw 400, the driving member can drive the ball screw 400 to rotate and make the sliding block 500 move up and down, and the sliding block 500 drives the piston assembly 300 to move up and down in the cylinder body 200.

[0068] It should be understood that the coffee machine includes full-automatic, manual, semi-automatic and other types. For manual and semi-automatic coffee machines, coffee beans are usually ground into coffee powder of a set grind degree, the coffee powder is placed in a powder bowl and then subjected to powder loosening and powder pressing to compact the coffee powder in the powder bowl, the powder bowl is installed at the bottom of the cylinder body, and then hot water in the cylinder body and the compacted coffee powder in the powder bowl are extracted by manual or motor power drive to obtain coffee liquid.

[0069] In the basic embodiment, the powder bowl can be fixed at the bottom of the cylinder body by the existing method, for example, by setting a spiral groove continuously narrowing from the inlet to the back on the bottom of the cylinder body to cooperate with the flange on the powder bowl for installation, rotating the installation process, and the flange is gradually fixed by abutting the inner wall of the spiral groove.

[0070] In the basic embodiment, a fork-shaped cantilever can be extended from the bracket to clamp the outer wall of the cylinder body, and the part of the cantilever connected to the cylinder body can cooperate with the shape of the cylinder body, and the installation is completed by further fixing the cylinder body through a screw-mounted detachable stop block on the fork-shaped cantilever, referring to Figure 2 .

[0071] In the basic embodiment, the piston assembly can include a piston body and a detachable sealing plug, a hand-held arm can be arranged on the sealing plug to facilitate hand holding, the sealing plug is arranged to facilitate water filling in the cylinder, a through hole is arranged in the piston body, an annular groove is arranged on the inner side wall of the through hole, an avoiding groove is arranged on the annular groove, and the sealing plug is provided with a corresponding buckle protrusion, the buckle protrusion enters the annular groove through the avoiding groove, and the installation is completed by rotating the buckle protrusion. The annular groove can also be arranged to gradually narrow in width to facilitate clamping the buckle protrusion.

[0072] The application of the ball screw on the coffee machine makes the operation of the coffee machine simpler and the coffee extraction process easier to control.

[0073] It should be understood that the application of the ball screw in the field of manual or semi-automatic coffee machines is a pioneering application. The application of the ball screw enables the transmission components to be conveniently hidden inside the support, which provides a large design space for the shape of the support and provides good protection for the transmission components. The overall structure is compact.

[0074] The basic embodiment is extended, and the coffee machine further comprises: Figure 3

[0075] The first bevel gear 610 and the second bevel gear 620 are engaged with each other, the second bevel gear 620 has more teeth than the first bevel gear 610, the axes of the first bevel gear 610 and the second bevel gear 620 are perpendicular to each other, the first bevel gear 610 is connected to the driving member, and the second bevel gear 620 is arranged on the extension shaft part 410 extending downward from the bottom of the ball screw 400.

[0076] The arrangement of the first bevel gear 610 and the second bevel gear 620 can further reduce the power output by the driving member and increase the distance, reduce the required torque output of the driving member, and enable a 90-degree switch of the transmission direction, so as to facilitate the arrangement of the hand crank 700 with a horizontal axis and facilitate the hand cranking by the user.

[0077] The driving member is the hand crank 700 coaxially connected to the first bevel gear 610.

[0078] The arrangement of the hand crank 700 defines that the coffee machine can be a hand crank coffee machine. The hand crank coffee machine has a simple structure. The transmission ratio of the hand crank 700 itself plus the transmission ratio of the first bevel gear 610 and the second bevel gear 620 plus the transmission ratio of the ball screw 400 can easily meet the pressure requirement of coffee extraction.

[0079] The hand crank coffee machine is very rare in the product industry. The hand crank coffee machine has a simple structure, is convenient to operate by hand, and has a relatively low cost.

[0080] The basic embodiment is extended, and the driving member is an electric motor. ​

[0081] Through the setting of the ball screw, the coffee machine can be set to be semi-automatic, so it can be seen that the setting of the ball screw makes the driving part of the coffee machine flexible, which can be hand-operated or motor-driven, and the driving mode can be flexibly set according to the needs, and all can meet the needs of coffee extraction, which is a significant improvement that the application of the ball screw in the coffee machine can bring.

[0082] The motor is arranged below the ball screw.

[0083] The motor can utilize the internal space of the bracket, for example, refer to Figure 5 The setting of the second inner cavity can facilitate the installation of the motor, which can be a speed reducer. The second inner cavity provides sufficient space for the motor to be drivingly connected with the ball screw, and the motor is arranged below the ball screw to facilitate the setting of the motor.

[0084] It should be understood that the motor can also be arranged above the ball screw and can be installed on the top plate or the upper mounting plate.

[0085] It should be understood that the second inner cavity can also be provided with a power supply for providing a portable function.

[0086] It should be understood that the motor can also be arranged at a position corresponding to the shaft rod part passing through the barrel of the side wall of the barrel, that is, the crank handle part and the hand-held part are omitted, and the shaft rod part is directly driven to rotate by the motor, which drives the first bevel gear and the second bevel gear to rotate, thereby driving the ball screw to rotate, that is, the motor can directly drive the ball screw, or drive the first bevel gear to drive the second bevel gear.

[0087] Obviously, through the setting of the ball screw, the driving mode and the transmission mode of the coffee machine can be adjusted according to the space requirement, the use habit requirement, etc., and the application is more flexible.

[0088] Extension of the basic embodiment, refer to Figure 3 The coffee machine further comprises:

[0089] The guide block 810 and the guide rail 820 are connected with the sliding block 500 and the bracket respectively.

[0090] The guide block 810 and the guide rail 820 define the lifting path of the sliding block 500.

[0091] It should be understood that the barrel 150 can also be provided with a vertically extending avoiding groove for avoiding the lifting movement of the cantilever part 520.

[0092] Extension of the basic embodiment, refer to Figure 3 The sliding block 500 comprises:

[0093] The sleeve part 510 is connected with the ball screw 400.

[0094] The cantilever part 520 extends from the sleeve part 510 and is above the cylinder body 200, and the cantilever part 520 is connected to the piston assembly 300.

[0095] The sleeve part 510 is used to match the ball screw 400, and the cantilever part 520 is used to extend above the cylinder body 200, and the cantilever part is connected to the piston assembly 300 through the connecting rod 900, so that the piston assembly 300 can be kept in a relatively vertical connection state, and the piston assembly 300 can be better actuated.

[0096] The basic embodiment is extended, referring to Figures 1-3 The coffee machine further comprises:

[0097] The connecting rod 900 is located between the piston assembly 300 and the cantilever part 520, and the connecting rod 900 is hingedly connected to the piston assembly 300 and the cantilever part 520 at both ends.

[0098] The connecting rod 900 is arranged to connect the piston assembly 300 and the cantilever part 520.

[0099] It can be understood that the upper end of the connecting rod 900 can be hingedly connected to the cantilever part 520 through a closed ring, and cannot be disassembled in a normal state, and the lower end of the connecting rod 900 can be hingedly connected to the sealing plug through an open ring, so as to be separated, and the sealing plug can also be taken out through the hand-held arm to add water to the cylinder body 200.

[0100] The basic embodiment is extended, referring to Figures 2-5 The bracket comprises an upper mounting plate 110 and a lower mounting plate 120, and a first inner cavity 130 is formed between the upper mounting plate 110 and the lower mounting plate 120, and a second inner cavity 140 is formed below the lower mounting plate 120.

[0101] The ball screw 400 and the sliding block 500 are arranged in the first inner cavity 130, and the upper and lower ends of the ball screw 400 are respectively mounted on the upper mounting plate 110 and the lower mounting plate 120.

[0102] The first bevel gear 610 and the second bevel gear 620 are arranged in the second inner cavity 140, and the extension shaft part 410 of the lower end of the ball screw 400 passes through the lower mounting plate 120 and enters the second inner cavity 140 to connect the second bevel gear 620.

[0103] The upper mounting plate 110 and the lower mounting plate 120 are arranged to facilitate the installation of the ball screw 400, and the first inner cavity 130 and the second inner cavity 140 are arranged to facilitate the arrangement of the transmission components in the bracket.

[0104] The basic embodiment is extended, referring to Figures 1-3 The hand crank 700 comprises:

[0105] The shaft part 710 passes through the bracket, and the inner end of the shaft part 710 is connected to the first bevel gear 610.

[0106] the shaft rod part 710;

[0107] the hand-held part 730, which extends axially outward from the centrifugal position of the rocking handle part 720.

[0108] The hand-held part 730 can be used to rotate the shaft rod part 710 to rotate, and the shaft rod part 710 and the rocking handle part 720 can be set as a detachable structure, so as to replace the rocking handle part 720 of different lengths according to requirements.

[0109] It should be understood that the inner end of the shaft rod part 710 corresponds to the end of the shaft rod part 710 inserted into the support, and the outer end of the shaft rod part 710 corresponds to the end of the support outside the shaft rod part 710. The radial direction corresponds to the radial direction of the rotation axis of the shaft rod part 710, and the axial direction corresponds to the direction parallel to the rotation axis of the shaft rod part 710.

[0110] Referring to Figure 3 , the inner end and the outer end of the position where the shaft rod part 710 passes through the support are provided with bearings 740.

[0111] This setting facilitates the stable installation of the shaft rod part 710, and the shaft rod part 710 will not move during rotation, and the rotation is stable

[0112] Extension of the basic embodiment, referring to Figure 4 and Figure 5 , the support further comprises:

[0113] the cylinder body 150, the lower mounting plate 120 is arranged in the cylinder body 150 and divides the space in the cylinder body 150 into the first inner cavity 130 and the second inner cavity 140, the upper end of the first inner cavity 130 is provided with an upper opening, and the lower end of the second inner cavity 140 is provided with a lower opening, and the upper mounting plate 110 is detachably mounted at the upper opening position.

[0114] The upper opening and the lower opening are arranged to facilitate the installation of the components in the first inner cavity 130 and the second inner cavity 140.

[0115] Extension of the basic embodiment, referring to Figure 4 and Figure 5 , the support further comprises:

[0116] the top cover 160, which is detachably mounted at the upper opening position and used to close the upper opening, and the top cover 160 is located above the upper mounting plate 110;

[0117] the bottom plate 170, which is detachably mounted at the lower opening position and used to close the lower opening.

[0118] The top cover 160 and the bottom plate 170 are used to close after the components in the first inner cavity 130 and the second inner cavity 140 are installed.

[0119] In this arrangement, the barrel 150 can be arranged as a beautiful rotating body or a similar rotating body, and the barrel 150 can also be arranged as other shapes, and the design space is large, and each component can be conveniently disassembled and assembled.

[0120] The barrel 150 is in the shape of a rotating body with a hyperbolic cross section.

[0121] It should be noted that the terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" and the like can be applied to describe several embodiments of the present application in the present specification, and the specific features, structures, materials or characteristics in the several embodiments can be combined in the case of conforming to the principles and purposes of the present application.

[0122] Although some embodiments of the present application have been shown and described in the present specification, the present application should not be limited to the above embodiments, but as long as the same or equivalent means achieve the technical effects of the present application, any changes, modifications, equivalent replacements and equivalent variations of these embodiments within the spirit and principles disclosed by the present application without departing from the principles and purposes of the present application should be included in the scope of protection of the present application, and should be considered to belong to the protection scope of the present application.

Claims

1. Coffee machine, characterized in that, The utility model relates to a kind of piston devices, including: Support; Cylinder (200), is installed in the support; Piston assembly (300), connect the cylinder (200); Threaded ball screw (400) and slider (500), the ball screw (400) is installed in the support, the slider (500) is connected the piston assembly (300); Driving part, connect the ball screw (400), the driving part can drive the ball screw (400) rotation and make the slider (500) lifting movement, the slider (500) drives the piston assembly (300) lifting movement in the cylinder (200).

2. The coffee maker of claim 1, characterized in that: Also include: Intermeshing first bevel gear (610) and second bevel gear (620), the second bevel gear (620) is greater than the first bevel gear (610) in number of teeth, the axis of the first bevel gear (610) and the second bevel gear (620) is perpendicular, the first bevel gear (610) is connected the driving part, the second bevel gear (620) is located on the extension shaft portion (410) that the ball screw (400) bottom extends downward; The driving part is hand crank (700) coaxially connected the first bevel gear (610).

3. The coffee maker of claim 1, characterized in that: The driving part is motor; The motor is located below the ball screw (400).

4. The coffee maker of claim 1, wherein, Also include: Guide block (810) and guide rail (820), one of them is connected the slider (500), the other one is connected the support.

5. The coffee maker of claim 1, wherein, The slider (500) includes: Sleeve portion (510), connect the ball screw (400); Cantilever portion (520), by the sleeve portion (510) extends and is located above the cylinder (200), the cantilever portion (520) is connected the piston assembly (300).

6. The coffee maker of claim 5, wherein, Also include: Connecting rod (900), between the piston assembly (300) and the cantilever portion (520), the connecting rod (900) both ends are articulated the piston assembly (300) and the cantilever portion (520) respectively.

7. The coffee maker of claim 2, wherein, The support includes upper mounting plate (110) and lower mounting plate (120), the first inner cavity (130) is formed between the upper mounting plate (110) and the lower mounting plate (120), the second inner cavity (140) is formed below the lower mounting plate (120); The ball screw (400), the slider (500) are located in the first inner cavity (130), the ball screw (400) both ends are installed in the upper mounting plate (110) and the lower mounting plate (120) respectively; The first bevel gear (610) and the second bevel gear (620) are located in the second inner cavity (140), the extension shaft portion (410) of the ball screw (400) lower end passes through the lower mounting plate (120) and enters the second inner cavity (140) and is connected the second bevel gear (620).

8. The coffee maker of claim 7, wherein, The hand crank (700) includes: Shaft rod portion (710), passes through the support, the inner end of the shaft rod portion (710) is connected the first bevel gear (610); A handle portion (730) extends axially outward from a centrifugal position of the handle portion (720); The shaft portion (710) is provided with bearings (740) at the inner end and the outer end of the position through which the shaft portion (710) passes the bracket. The bracket further comprises:

9. The coffee maker of claim 7, wherein, A cylinder body (150), the lower mounting plate (120) is arranged in the cylinder body (150) and separates the space in the cylinder body (150) into the first inner cavity (130) and the second inner cavity (140), the upper end of the first inner cavity (130) is provided with an upper opening, the lower end of the second inner cavity (140) is provided with a lower opening, and the upper mounting plate (110) is detachably mounted at the upper opening position. The bracket further comprises:

10. The coffee maker of claim 9, wherein, A top cover (160) is detachably mounted at the upper opening position and used for closing the upper opening, and the top cover (160) is located above the upper mounting plate (110); A bottom plate (170) is detachably mounted at the lower opening position and used for closing the lower opening; The cylinder body (150) has a whole shape of a rotation body with a hyperbolic cross section. ​

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