阅读说明：本技术 一种刺破装置及咖啡机 (Puncture device and coffee machine ) 是由 黄劲銧 于 2019-11-27 设计创作，主要内容包括：本发明公开了一种刺破装置及咖啡机,其包括底座,刺破盖和把手均铰接在底座上,刺破盖与把手通过第一连杆传动连接,第一连杆的第一端通过第三转轴铰接在刺破盖上,第一连杆的第二端通过第四转轴铰接在把手上；在底座上设置伸缩摆臂以及具有高位和低位的轨道,伸缩摆臂的第一端通过第五转轴铰接在底座上,伸缩摆臂的第二端铰接在第四转轴上,并且第四转轴限制活动在轨道中,该第一端与第二端通过伸缩结构进行伸缩方向的限制；通过外力摆动把手,把手通过第一连杆将刺破盖在非刺破状态和刺破状态之间切换。本发明整体结构简单而可靠性和稳定性强。(The invention discloses a puncture device and a coffee machine, which comprise a base, wherein a puncture cover and a handle are hinged on the base, the puncture cover is in transmission connection with the handle through a first connecting rod, the first end of the first connecting rod is hinged on the puncture cover through a third rotating shaft, and the second end of the first connecting rod is hinged on the handle through a fourth rotating shaft; a telescopic swing arm and a track with a high position and a low position are arranged on the base, a first end of the telescopic swing arm is hinged on the base through a fifth rotating shaft, a second end of the telescopic swing arm is hinged on a fourth rotating shaft, the fourth rotating shaft is limited to move in the track, and the first end and the second end are limited in the telescopic direction through a telescopic structure; the handle is swung by external force, and the handle switches the puncture cover between a non-puncture state and a puncture state through the first connecting rod. The invention has simple integral structure and strong reliability and stability.)

1. A lancing device, characterized by: the puncture cover is hinged to the base through a first rotating shaft, the handle is hinged to the base through a second rotating shaft, the puncture cover is in transmission connection with the handle through a first connecting rod, the first end of the first connecting rod is hinged to the puncture cover through a third rotating shaft, and the second end of the first connecting rod is hinged to the handle through a fourth rotating shaft; a telescopic swing arm and a track with a high position and a low position are arranged on the base, a first end of the telescopic swing arm is hinged on the base through a fifth rotating shaft, a second end of the telescopic swing arm is hinged on a fourth rotating shaft, the fourth rotating shaft is limited to move in the track, and the first end and the second end are limited in the telescopic direction through a telescopic structure; the fourth rotating shaft is in a non-puncture state when positioned at the high position of the track, and is in a puncture state when positioned at the low position of the track; the handle is swung by external force, and the handle switches the puncture cover between a non-puncture state and a puncture state through the first connecting rod.

2. A lancing device according to claim 1, wherein: the first end and the second end elastically stretch in the stretching direction through a spring.

3. A lancing device according to claim 1, wherein: the telescopic structure is a sleeve and a bolt, and the bolt at the first end/the second end is inserted into the sleeve at the second end/the first end to limit the telescopic direction.

4. A lancing device according to claim 1 or 2, wherein: an elastic part is arranged between the puncture cover and the base, and the elastic part provides elastic force for the puncture cover to keep a non-puncture state.

5. A lancing device according to claim 1, wherein: the fourth rotating shaft is in transmission connection with the first rotating shaft through a second connecting rod, the first end of the second connecting rod is hinged with the first rotating shaft, and the second end of the second connecting rod is fixedly connected with the fourth rotating shaft.

6. A lancing device according to claim 5, wherein: the handle is assembled to the second link.

7. A lancing device according to claim 1, wherein: the track is a transverse arc track, and the fifth rotating shaft is located below the arc track.

8. A coffee machine characterized by: use of a puncturing device as claimed in any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of coffee machines, in particular to a puncturing device and a coffee machine.

Background

The Chinese patent with the publication number of CN 203776700U discloses a capsule coffee machine, which comprises a coffee machine frame, a water tank, a hot water outlet chamber and a coffee brewing chamber, wherein the water tank is communicated with the hot water outlet chamber through a hot water conduit, and is characterized in that a water outlet movable block capable of moving up and down is arranged in the hot water outlet chamber, a hot water channel communicated with the hot water conduit is arranged in the water outlet movable block, an upper water outlet needle is arranged at the lower end outlet of the hot water channel, a driving mechanism for driving the water outlet movable block to move up and down is arranged at the upper end of the water outlet movable block, a spring for driving the water outlet movable block to move up is arranged between the water outlet movable block and a bottom bracket of the hot water outlet chamber, the water outlet movable block moves down to the lowest point position, the upper water outlet needle enters the coffee brewing chamber and pierces a capsule, and a water pump is powered on when a heating element, hot water enters the capsule through the upper water outlet needle. Although the structure is simple, the motion of the swing arm is hard, and the motion of the puncture cover is also hard.

The application publication number is CN 102973156A, which discloses a brewing device of a capsule coffee machine. Most of brewing devices used by the existing capsule coffee machine adopt an elastic mechanism, and the structure is not firm enough; in addition, some parts of the elastic mechanism lose corresponding functions due to fatigue or abrasion after long-term use, and the stability and the reliability of the capsule coffee machine during working are directly influenced. The invention is characterized in that at least one inner side wall of the grooved wheel is provided with a circle of motion track groove which is matched with a brewing cavity to rotate and horizontally move, the brewing cavity penetrates through a push rod which axially moves, one end of the push rod forms a push part arranged in the brewing cavity, the other end of the push rod is connected with a pin arranged in the motion track groove, a spring is arranged between the end and a fixed bracket, and the motion track groove comprises a section of arc groove which takes the rotation center of the grooved wheel as the center of circle; the grooved wheel is provided with an occlusion part used for occluding with the tail part of the brewing cavity. The spring mechanism is limited in service life, and indeed may lose its effect due to fatigue or wear in long-term use, but the application still does not solve the practical problem because the use of the spring is not left, and the use of the spring is inevitable, and it is only true that the service life of the spring is improved by reasonably designing the structure and the effect of the spring.

Based on the above-mentioned deficiencies of the prior art, there is a need to develop a lancing device that has a simple structure, high reliability and stability, and a non-rigid lancing cap action.

Disclosure of Invention

The present invention provides a piercing device and a coffee machine, which are designed to overcome the above-mentioned shortcomings of the prior art.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a puncture device comprises a base, a puncture cover, a handle, a first connecting rod, a second connecting rod, a third rotating shaft, a fourth rotating shaft and a third rotating shaft, wherein the puncture cover is hinged to the base through the first rotating shaft; a telescopic swing arm and a track with a high position and a low position are arranged on the base, a first end of the telescopic swing arm is hinged on the base through a fifth rotating shaft, a second end of the telescopic swing arm is hinged on a fourth rotating shaft, the fourth rotating shaft is limited to move in the track, and the first end and the second end are limited in the telescopic direction through a telescopic structure; the fourth rotating shaft is in a non-puncture state when positioned at the high position of the track, and is in a puncture state when positioned at the low position of the track; the handle is swung by external force, and the handle switches the puncture cover between a non-puncture state and a puncture state through the first connecting rod.

In the above technical scheme, the first end and the second end elastically stretch in the stretching direction through the spring.

In the above technical solution, the telescopic structure is a sleeve and a bolt, and the bolt of the first end/the second end is inserted into the sleeve of the second end/the first end to limit the telescopic direction.

In the technical scheme, the elastic part is arranged between the puncture cover and the base, and the elastic part provides elastic force for keeping the puncture cover in a non-puncture state.

In the above technical scheme, the fourth rotating shaft is in transmission connection with the first rotating shaft through the second connecting rod, the first end of the second connecting rod is hinged with the first rotating shaft, and the second end of the second connecting rod is fixedly connected with the fourth rotating shaft.

In the above technical solution, the handle is assembled to the second link.

In the above technical solution, the rail is a transverse arc rail, and the fifth rotating shaft is located below the arc rail.

A coffee machine adopts the puncture device.

The invention has the beneficial effects that:

1. the whole structure is simple, and the reliability and the stability are strong.

2. Compared with the prior art, the stability and the reliability of the whole puncturing action of the puncturing cover are enhanced through the double elastic action of the tension spring and the assistance of the telescopic swing arm and the spring, and the puncturing cover is not rigid.

3. The first link acts as a transmission between the handle and the piercing cover, and is simpler in structure and more reliable than prior art.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a side view of the present invention.

FIG. 3 is a schematic cross-sectional view of the present invention in a non-punctured state.

Fig. 4 is a schematic sectional view showing the puncture state according to the present invention.

In the figure, 1, a base; 2. supporting legs; 3. a support frame; 4. piercing the cover; 5. a first rotating shaft; 6. a handle; 7. a second rotating shaft; 8. a first link; 9. a third rotating shaft; 10. a fourth rotating shaft; 11. a telescopic swing arm; 12. high position; 13. low position; 14. a track; 15. a spring; 16. a sleeve; 17. a bolt; 18. a torsion spring; 19. a first stop structure; 20. a second stop structure; 21. a third stop structure; 22. a needle; 23. a fifth rotating shaft; 24. a second link.

Detailed Description

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

As shown in fig. 1-4, a puncture device comprises a base 1, a puncture cover 4 hinged on the base 1 through a first rotating shaft 5, a handle 6 hinged on the base 1 through a second rotating shaft 7, the puncture cover 4 and the handle 6 in transmission connection through a first connecting rod 8, a first end of the first connecting rod 8 hinged on the puncture cover 4 through a third rotating shaft 9, and a second end of the first connecting rod 8 hinged on the handle 6 through a fourth rotating shaft 10; a telescopic swing arm 11 and a track 14 with a high position 12 and a low position 13 are arranged on a base 1, a first end of the telescopic swing arm 11 is hinged on the base 1 through a fifth rotating shaft 23, a second end of the telescopic swing arm 11 is hinged on a fourth rotating shaft 10, the fourth rotating shaft 10 is limited to move in the track 14, and the first end and the second end are limited in the telescopic direction through a telescopic structure; the fourth rotating shaft 10 is in a non-puncture state when located at the high position 12 of the track 14, and the fourth rotating shaft 10 is in a puncture state when located at the low position 13 of the track 14; by swinging the handle 6 by an external force, the handle 6 switches the puncture cap 4 between the non-punctured state and the punctured state through the first link 8. The bottom of the piercing cover 4 is provided with a piercing needle 22.

Specifically, two supporting legs 2 extend out of one side of the puncture cover 4, the ends of the two supporting legs 2 are provided with C-shaped buckles, and the C-shaped buckles are buckled on a first rotating shaft 5 on the base 1 to form a hinged relation. The piercing cover 4 rotates within a certain range, i.e., an acute angle rotation range of a certain angle in this embodiment, with the first rotating shaft 5 as an axis.

Specifically, the base 1 has a hollow part which is through up and down, the puncture cover 4 is arranged and movable in the hollow part, and the base 1 is provided with a slideway for the capsule placing mechanism to slide into a position to be punctured. Two support frames 3 are vertically arranged on two sides of the hollow part, and a handle 6 is arranged between the two support frames 3 through a second rotating shaft 7.

Specifically, the first end and the second end elastically stretch in the stretching direction by a spring 15. In this embodiment, the telescopic structure is a sleeve 16 and a plug 17, the plug 17 at the first end is inserted into the sleeve 16 at the second end to limit the telescopic direction, and the structure is similar to a piston; the spring 15 is sleeved outside the sleeve 16 and acts on two ends, when the fourth rotating shaft 10 is located at the low position 13, the spring 15 is in a compressed state, and when the fourth rotating shaft 10 is located at the high position 12, the spring 15 is in a compressed state or a normal state, and the spring 15 always provides elastic force outwards so that the telescopic structure keeps a stretching trend. Of course, the telescopic structure can also be a telescopic structure consisting of parallel connecting rods, and if the telescopic structure is a telescopic structure adopting parallel connecting rods, the spring 15 can be arranged between two diagonal hinge points. The spring 15 has the function of enabling the switch between the high position 12 and the low position 13 to have certain elastic force inertia effect on one hand, and improving the stability and reliability when the switch is fixed at the high position 12 or the low position 13; on the other hand, the actions of the puncture cover 4 and the handle 6 have elastic inertia, so that the actions are not too hard.

Specifically, an elastic member is disposed between the piercing cap 4 and the base 1, and the elastic member provides an elastic force to the piercing cap 4 to maintain a non-piercing state. In this embodiment, the elastic member is a torsion spring 18, two legs of the torsion spring 18 have opposite elastic directions, one leg is fixed on the base 1, and the other leg acts on the puncturing cover 4, so that the puncturing cover 4 maintains an open state (i.e., a non-puncturing state). The torsion spring 18 and the spring 15 are used together as an elastic mechanism of the puncturing device in the brewing system, so that the elastic recovery function of the elastic part due to fatigue or abrasion after long-term use can be avoided, and the stability and the reliability of the puncturing device during operation can be improved.

Specifically, the fourth rotating shaft 10 is in transmission connection with the first rotating shaft 5 through a second connecting rod 24, a first end of the second connecting rod 24 is hinged to the first rotating shaft 5, and a second end of the second connecting rod 24 is fixedly connected with the fourth rotating shaft 10. And the handle 6 is fitted to the second link 24. The second link 24 is provided with a jack for mounting the handle 6, the handle 6 is provided with a latch 17 and a reverse buckle, and the handle 6 is provided with a first stop structure 19 at the stroke limit position of the rotation range, and the first stop structure 19 does not necessarily have the actual stop function when the handle 6 is in a non-puncture state or a puncture state, but can be used as an auxiliary stop structure once other stop structures (such as the rail 14 is broken and the like) fail. Similarly, the second stop structure 20 is also disposed on the piercing cap 4 as an auxiliary stop, and in the non-piercing state, that is, when the piercing cap 4 is in the maximum angle range with the piercing state, the second stop structure 20 is close to the fourth rotating shaft 10, and may be in contact with or not in contact with the fourth rotating shaft, for example, when the structure is assembled with a margin, the second stop structure 20 may be in contact with the fourth rotating shaft. Similarly, the first connecting rod 8 is also provided with a third stop structure 21.

Specifically, the rail 14 of the present embodiment is a transverse arc rail 14, and the fifth rotating shaft 23 is located below the arc rail 14. Or the fifth rotating shaft 23 is positioned above the arc-shaped track 14, as long as the mechanism of the telescopic swing arm 11 is adjusted. Other effects may be obtained when the fourth rotating shaft 10 can be switched between the high position 12 and the low position 13.

The capsule coffee machine comprises a coffee machine frame, a water tank, a hot water outlet cavity and a coffee brewing cavity, wherein the water tank is communicated with the hot water outlet cavity through a hot water guide pipe, and the capsule coffee machine is characterized in that a movable puncturing device is arranged in the hot water outlet cavity.

The working principle of the invention is as follows:

the capsule is placed in the receiving groove and slid into the base 1 at the location to be punctured, i.e. below the puncturing cover 4 or in the puncturing area. In this embodiment, the handle 6 is in a tilted state and is in a non-piercing state, at this time, the fourth rotating shaft 10 is in a high position 12, the telescopic swing arm 11 is in a stretched state, and the piercing cover 4 is in an open state relative to the capsule. The handle 6 is pressed down by external force, the fourth rotating shaft 10 moves from the high position 12 to the low position 13 along the track 14 by the compression spring 15 of the high position 12, a fall feedback effect is caused between the high position 12 and the low position 13 through an arc section and is transmitted to the handle 6, meanwhile, the puncture cover 4 tends to be closed relative to the capsule until the handle 6 is completely pressed down, and in the process that the puncture cover 4 tends to be closed relative to the capsule, the puncture needle 22 punctures the protective film after the puncture needle 22 completely reaches the position from the state of contacting the protective film of the capsule, and the puncture action is finished.

The above examples are intended to illustrate rather than to limit the invention, and all equivalent changes and modifications made by the methods described in the claims of the present invention are intended to be included within the scope of the present invention.