CN210354364U

CN210354364U - Milk box felting needle subassembly

Info

Publication number: CN210354364U
Application number: CN201920910554.3U
Authority: CN
Inventors: 严寒汀; 欧阳学明; 詹毅; 顾月春
Original assignee: Ningbo Merol Coffee Machine Co ltd
Current assignee: Ningbo Merol Coffee Machine Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-04-21
Anticipated expiration: 2029-06-17

Abstract

The utility model provides a milk box felting needle component which is provided with a felting needle; a first oblique incision capable of puncturing the milk box is formed at the lower end of the puncture needle; and a plurality of strip-shaped yielding surfaces in the vertical direction are arranged on the outer wall of the puncture needle at one end close to the first oblique incision along the circumferential direction. When the puncture needle punctures the milk box, the first oblique incision punctures the milk box to form a puncture opening on the milk box; a gap for air to enter is formed between the yielding surface and the puncture opening, so that the puncture needle can avoid the reduction of suction force when absorbing the milk in the milk box.

Description

Milk box felting needle subassembly

Technical Field

The utility model relates to a beverage equipment technical field especially relates to a milk box felting needle subassembly.

Background

A coffee maker is an automated apparatus for making coffee. Due to the improvement of living standard, people have higher and higher demand for milk products. Some coffee machines are also capable of extracting milk from the milk cartridge and adding it to the coffee.

The coffee machine can pierce the milk box through the puncture needle to absorb the milk therein; chinese patent CN109730539A discloses a self-cleaning lancet device which is mounted in a housing and includes a lancet for puncturing a milk box and sucking out milk; the pricking pin is sleeved with a flow guide sleeve and a flow guide cover, and gaps for flow guide are formed among the flow guide sleeve, the flow guide cover and the outer wall of the pricking pin; the guide sleeve is positioned below the guide cover; a pipeline connecting hole for leading in hot water is formed in the side surface of the flow guide cover; the pipeline connecting hole is communicated with the gap. The puncture needle device comprises a puncture needle, a flow guide sleeve and a flow guide cover, wherein the puncture needle is used for puncturing the milk box and sucking out the milk; injecting hot water from the pipeline connecting hole of the diversion cover; the hot water flows down along the gaps among the diversion sleeve, the diversion cover and the outer wall of the pricking pin so as to clean the outer wall of the pricking pin. When the puncture needle of the puncture needle assembly punctures the milk box downwards, the puncture opening formed on the milk box is tightly sleeved on the outer wall of the puncture needle, air cannot enter the milk box, and therefore suction force is reduced, and even milk in the milk box cannot be sucked out.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a milk box felting needle component aiming at the defects of the prior art.

The milk box and pricker assembly is provided with a pricker; a first oblique incision capable of puncturing the milk box is formed at the lower end of the puncture needle; and a plurality of strip-shaped yielding surfaces in the vertical direction are arranged on the outer wall of the puncture needle at one end close to the first oblique incision along the circumferential direction.

Further, the relief surface is a flat surface or a grooved surface.

The milk box and puncture needle assembly further comprises a puncture needle joint fixedly connected with the upper end of the puncture needle, and a puncture needle sleeve fixed at the lower end of the puncture needle joint and sleeved on the periphery of the puncture needle; a second oblique incision positioned above the first oblique incision is formed at the lower end of the puncture needle sleeve; a gap is formed between the lancet sleeve and the outer wall of the lancet;

the puncture needle connector is provided with a first pipeline connecting part communicated with the interior of the puncture needle and a second pipeline connecting part communicated with the interior of the puncture needle sleeve.

Furthermore, the lancet sleeve is provided with a connecting part fixedly connected with the lancet joint, and a tubular guide part coated on the periphery of the lancet is formed on the lower side of the connecting part.

Further, a plurality of elongated grooves in the vertical direction are formed in the outer wall of the tubular guide portion along the circumferential direction.

Further, the outer wall of the tubular guiding part is provided with a ring of annular flanges at the position close to the second oblique incision.

Further, a plurality of elongated planes in the vertical direction are arranged on the outer wall of the tubular guide part along the circumferential direction.

Further, at least three protrusions are uniformly arranged on the inner wall of the tubular guide part along the circumferential direction.

Further, the position of the convex part corresponds to the position of the elongated groove.

Drawings

Fig. 1 is a schematic structural view of a milk box and puncturing needle assembly according to an embodiment of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is a schematic view of the internal cross-section of a milk box and lancet assembly according to an embodiment of the present invention.

FIG. 4 is a schematic view of a lancet cover according to an embodiment of the present invention.

Fig. 5 is a schematic view of another lancet hub embodiment of the present invention.

Fig. 6 is a schematic view of another lancet hub embodiment of the present invention.

Fig. 7 is a schematic view of another lancet hub embodiment of the present invention.

Fig. 8 is a schematic view of another lancet hub embodiment of the present invention.

Fig. 9 is a cross-sectional view at a of fig. 3.

Fig. 10 is a flow chart of a milk sucking method according to an embodiment of the present invention.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. In the following description, specific details are provided, such as specific configurations and components, merely to facilitate a thorough understanding of embodiments of the invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Referring to fig. 1, the milk box lancet assembly has a lancet 1; the lower end of the puncture needle 1 is provided with a first oblique incision 11 which can puncture a milk box; the outer wall of the puncture needle 1 is provided with a plurality of vertically elongated yielding surfaces 12 along the circumferential direction at one end close to the first oblique incision 11. Wherein the puncture needle 1 punctures the milk box and sucks the milk in the milk box through the first oblique incision 11.

Specifically, the milk box and lancet assembly moves downwards, so that the first oblique incision 11 of the lancet 1 punctures the milk box and forms a puncture on the milk box; a gap for air to enter is formed between the yielding surface and the puncture opening, and when the puncture needle 1 is used for absorbing milk in the milk box, air can enter the milk box from the gap, so that the problem that the air cannot enter the milk box to cause the reduction of suction force when the existing puncture needle 1 absorbs the milk in the milk box is solved.

It should be noted that the relief surface 12 can have a variety of shapes, closer to the center than the surface of the rest of the lancet 1.

In some embodiments, the relief surface 12 is a planar or grooved surface.

In some embodiments, referring to fig. 2, 3 and 9, the milk box and lancet assembly further comprises a lancet joint 2 fixedly connected with the upper end of the lancet 1, and a lancet sleeve 3 fixed at the lower end of the lancet joint 2 and sleeved on the periphery of the lancet 1; a second oblique incision 321 positioned above the first oblique incision 11 is formed at the lower end of the lancet sleeve 3; a gap 3a is arranged between the lancet sleeve 3 and the outer wall of the lancet 1; the needle adapter 2 has a first tube connection 21 which communicates with the interior of the needle 1 and a second tube connection 22 which communicates with the interior of the needle sleeve 3.

Specifically, when the milk box and puncture needle assembly is cleaned, water or steam can be injected into the first pipeline connecting part 21 and the second pipeline connecting part 22; the water or steam injected from the first pipe connection part 21 is used to wash the inner wall of the puncture needle 1; water or steam injected from the second pipe connection 22 enters the gap 3a between the lancet cap 3 and the outer wall of the lancet 1 to wash the outer wall of the lancet 1.

Further, when the milk box and lancet assembly is moved downwards, the second oblique cut 321 on the lancet sleeve 3 can further puncture the milk box into the interior of the milk box, so that the water or steam injected from the first and second

pipeline connecting parts

21 and 22 for cleaning the lancet 1 can be injected into the milk box along the inner and outer walls of the lancet 1, and the collection process of the cleaning waste water or steam is simplified.

In some embodiments, the lancet sheath 3 has a connecting portion 31 fixedly connected to the lancet connector 2, and a tubular guide portion 32 covering the periphery of the lancet 1 is formed at the lower side of the connecting portion 31. The tubular guide portion 32 serves to guide the water or steam injected from the second pipe connection portion 22 to wash the outer wall of the lancet needle 1.

In some embodiments, referring to fig. 4 to 6, the outer wall of the tubular guiding portion 32 is circumferentially provided with a plurality of vertically elongated grooves 32 a. After the second oblique incision 321 in the lancet sleeve 3 has further punctured the milk box into the interior of the milk box, the lancet 1 sucks further in the remaining milk in the milk box; the elongated groove 32a on the outer wall of the tubular guide portion 32 allows a gap for air to enter to be formed between the outer wall of the tubular guide portion 32 and the puncture, and also prevents the problem of the decrease in suction force.

It should be noted that the elongated groove 32a may have various forms, and the elongated groove 32a in fig. 4 to 6 is merely exemplary.

In some embodiments, referring to fig. 7, the outer wall of the tubular guide 32 is formed with a circumferential flange 32b at a position close to the second oblique slit 321. After the second oblique incision 321 on the needle sleeve 3 further punctures the milk box and enters the interior of the milk box, when the second flange 32b enters the milk box through the puncture opening, the puncture opening is expanded, so that a gap for air to enter is formed between the outer wall of the tubular guide portion 32 and the puncture opening, and the problem of reduced suction force is avoided.

In some embodiments, referring to fig. 8, the outer wall of the tubular guiding portion 32 is circumferentially provided with a plurality of vertically elongated flat surfaces 32 c. The elongated flat surface 32c functions similarly to the elongated groove 32a, i.e. after the second oblique cut 321 on the lancet holder 3 further punctures the milk box and enters the interior of the milk box, a gap for air to enter is formed between the outer wall of the tubular guide portion 32 and the puncture to avoid the problem of reduced suction force.

It should be noted that before the second oblique incision 321 of the lancet sleeve 3 enters the milk box, the lancet 1 will suck a certain amount of milk, so that the liquid level in the milk box will be lowered, and thus the lancet sleeve 3 is located above the liquid level of the milk after entering the milk box, which can prevent the lancet sleeve 3 from contacting the milk in the milk box, thereby keeping the lancet sleeve 3 and the milk in the milk box clean.

In some embodiments, as shown in fig. 9, the inner wall of the tubular guide portion 32 is uniformly provided with at least three protrusions 32d along the circumferential direction. The projections 32d can be used to define the position of the lancet 1 within the tubular guide 32 so that the gap 3a between the outer wall of the lancet 1 and the inner wall of the tubular guide 32 is more uniform, i.e., the concentricity of the two is better, so that the water or steam injected into the gap 3a is more uniformly distributed to prevent a dead zone from occurring.

In some embodiments, the position of the protrusion 32d corresponds to the position of the elongated groove 32 a. As shown in fig. 9, the side walls of the tubular guide portion 32 are bent inward during processing, so that elongated grooves 32a are formed on the outer wall thereof and corresponding protrusions 32d are formed on the inner wall thereof.

On the other hand, the embodiment of the present invention also shows a milk sucking method, which is applied to the milk box lancet assembly, and referring to fig. 10, the milk sucking method specifically includes steps S901 to S903.

In step S901, the milk box and lancet assembly moves down to a first preset position, and the lancet 1 pierces the milk box and sucks up the milk in the milk box.

When the milk box and the needle assembly are downwards at a first preset position, the needle 1 pierces the milk box and sucks the milk in the milk box, and a gap for air to enter is formed between the yielding surface 12 and the puncture opening, and the air can enter the milk box from the gap when the needle 1 is used for absorbing the milk in the milk box.

Step S902, the milk box and the needle assembly continuously move downwards to a second preset position, the tubular guide part 32 of the needle sleeve 3 penetrates to a position above the liquid level in the milk box, and the needle 1 continuously sucks the milk in the milk box;

step S903, after the milk suction process is finished, injecting cleaning water or steam into the puncture needle 1 through the first pipeline connecting part 21; cleaning water or steam is injected into the needle sleeve 3 through the second line connection 22.

It should be noted that the pricking pin sleeve 3 is inserted into the milk box so as to inject water or steam into the milk box after cleaning the outer wall of the pricking pin 1; and the lancet 1 starts to suck milk at the first preset position in the step S901, so that the milk level in the milk box is lowered, and the lancet holder 3 is prevented from contacting the milk in the milk box in the step S902, thereby keeping the lancet holder 3 and the milk in the milk box clean.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A milk box lancet assembly, wherein the milk box lancet assembly has a lancet; a first oblique incision capable of puncturing the milk box is formed at the lower end of the puncture needle; and a plurality of strip-shaped yielding surfaces in the vertical direction are arranged on the outer wall of the puncture needle at one end close to the first oblique incision along the circumferential direction.

2. The milk box lancet assembly of claim 1, wherein the relief surface is a flat or grooved surface.

3. The milk box and lancet assembly of claim 1, further comprising a lancet joint fixedly connected to the upper end of the lancet, and a lancet sleeve fixed to the lower end of the lancet joint and sleeved around the periphery of the lancet; a second oblique incision positioned above the first oblique incision is formed at the lower end of the puncture needle sleeve; a gap is formed between the lancet sleeve and the outer wall of the lancet;

4. The milk box and lancet assembly of claim 3, wherein the lancet sleeve has a connecting portion fixedly connected with the lancet connector, and a tubular guide portion is formed at the lower side of the connecting portion and covers the periphery of the lancet.

5. The milk box lancet assembly of claim 4, wherein the outer wall of the tubular guide portion is circumferentially provided with a plurality of vertically elongated grooves.

6. The milk box spike assembly of claim 4 wherein the outer wall of the tubular guide portion is formed with a circumferential bead adjacent the second angled cut.

7. The milk box lancet assembly of claim 4, wherein the outer wall of the tubular guide portion is circumferentially provided with a plurality of vertically elongated flat surfaces.

8. The milk box lancet assembly according to claim 5, wherein the inner wall of the tubular guide portion is uniformly provided with at least three protrusions along the circumferential direction.

9. The milk box lancet assembly of claim 8, wherein the position of the protrusion corresponds to the position of the elongated groove.