Telescopic needle structure and coffee machine

Abstract

The application discloses a telescopic needle structure and a coffee machine, which comprises a handle, a top cover and a lower cover. The lower cover is arranged on the upper part of a machine body and is hinged to the machine body. A needle device is arranged in a containing cavity formed by the top cover and the lower cover. The handle is hinged to the lower cover and rotates relative to the top cover between a first position and a second position. The needle device comprises a sliding seat arranged on a plurality of guide columns of the lower cover. The sliding seat is provided with a needle. The lower part of the handle is provided with a crank. The crank is provided with a guide groove. The guide groove is provided with a first rotating shaft which is rotationally connected with the sliding seat. The first rotating shaft moves in the guide groove to drive the sliding seat to realize the telescopic movement of the needle. In the application, the first rotating shaft moves in the guide groove of the handle to drive the sliding seat to realize the telescopic movement of the needle. The telescopic reliability is good. The second rotating shaft which connects the handle with the lower cover is further provided with a bolt. The bolt can limit the rotation of the handle to keep the retracted state of the needle. The application realizes the linkage effect of the opening and closing of the cover. After the cover is opened, the needle is kept retracted. The application improves the convenience and safety of use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coffee machine furnace, in particular to a telescopic needle structure and coffee machine. BACKGROUND

[0002] At present, capsule coffee machines are widely used because of their convenience and variety of flavors. Coffee capsules need to be pierced by a piercing needle before being injected with water for brewing. The piercing needle is usually provided in the upper cover of the coffee machine, and users often get injured by the exposed piercing needle when opening and closing the upper cover.

[0003] CN201820049784.0 discloses a capsule coffee machine piercing needle telescopic mechanism, which comprises a shell cover and a brewing device. The shell cover is composed of a shell and a support. A handle is movably connected to the shell. A connecting rod piercing needle device is arranged between the shell cover and the support. The connecting rod piercing needle device comprises a connecting rod, a sliding groove at the bottom of the connecting rod, a piercing needle in the sliding groove, an inclined push part at the end of the handle, an inclined clamping groove at the end of the connecting rod corresponding to the inclined push part of the handle, and a spring transversely arranged at the other end of the connecting rod. In this technical solution, the connecting rod device drives the piercing needle to extend and retract, but the reliability is not good. Moreover, there is no interlocking action with the opening and closing of the upper cover. After the upper cover is opened, the retracted piercing needle cannot be locked. The convenience and safety of use are not good. SUMMARY

[0004] The present application aims to provide a telescopic needle structure and coffee machine, which solves the problems of low stability of the piercing needle telescopic device in the coffee machine, lack of interlocking effect when opening and closing the cover, and inability to lock the retracted piercing needle after opening the coffee machine cover, thereby overcoming the shortcomings of the prior art.

[0005] The present application provides a telescopic needle structure, which comprises a handle, a top cover and a lower cover. The lower cover is arranged on the upper part of the machine body and is hingedly connected to the machine body. A piercing needle device is arranged in the accommodating cavity formed by the top cover and the lower cover. The handle is hingedly connected to the lower cover and rotates relative to the upper cover between a first position and a second position. The piercing needle device comprises a sliding seat arranged on a plurality of guide columns of the lower cover. A piercing needle is mounted on the sliding seat. A crank is arranged at the lower part of the handle. A guide groove is arranged in the crank. A first rotating shaft is arranged in the guide groove and is rotatably connected to the sliding seat. The movement of the first rotating shaft in the guide groove drives the sliding seat to extend and retract the piercing needle.

[0006] Further, the lower cover is internally provided with fixing seats on both sides, the handle is hingedly connected with the fixing seats through a second rotating shaft, a latch is radially arranged on the protruding end of the second rotating shaft, a vertical limiting through hole is arranged in the fixing seat and penetrates the lower cover, when the handle is rotated to the second position, the latch is rotated to the vertical limiting through hole, and the latch falls into the vertical limiting through hole to limit the continuous rotation of the handle.

[0007] Further, the vertical limiting through hole is further provided with a movable limiting support, when the top of the limiting support is pushed by the latch entering the vertical limiting through hole, the bottom of the limiting support is extended from below the lower cover to abut against the body and swing the lower cover, when the bottom of the limiting support is pushed by the body, the top of the limiting support pushes the latch out of the vertical limiting through hole to release the limitation on the rotation of the handle.

[0008] Further, the end of the second rotating shaft is further provided with a swing hook, the swing hook is matched with a stopper arranged on the adjacent body, when the handle is located at the first position, the swing hook hooks the stopper to limit the rotation of the lower cover, when the handle is located at the second position, the swing hook is disengaged from the stopper to release the limitation on the rotation of the lower cover.

[0009] Further, the crank is arranged on both sides of the lower part of the handle, the guide groove comprises a straight section and a circular arc section, when the handle is located at the first position, the first rotating shaft is located at the straight section, when the handle is located at the second position, the first rotating shaft is slid from the straight section to the circular arc section.

[0010] Further, the lower cover is further provided with a micro switch matched with the crank, when the handle is located at the first position, the crank presses the micro switch.

[0011] Further, the lower cover is hingedly connected with the body through a second rotating shaft, a torsional spring is further arranged between the second rotating shaft and the body, one end of the torsional spring is arranged on the lower side of the second rotating shaft, and the other end of the torsional spring is arranged on the body.

[0012] Further, the center of the sliding seat is provided with a needle seat, the needle seat is internally provided with a horizontal inner hole and a vertical inner hole in communication, the horizontal inner hole is in communication with the water inlet channel of the body, and the needle is arranged at the end of the vertical inner hole and penetrates the lower cover to extend into the body.

[0013] The application further provides a coffee machine comprising a body and a telescopic needle structure.

[0014] The present application has the following beneficial effects: the handle is connected with the sliding frame mounting the lancet through the first rotating shaft, the first rotating shaft slides in the guide groove of the handle to drive the sliding seat to complete the extension and retraction of the lancet, the reliability of the extension and retraction of the lancet is good; meanwhile, the second rotating shaft connecting the handle with the lower cover is also provided with a latch, the handle rotation can be limited to keep the retracted state of the lancet, the linkage effect of the opening and closing cover is realized, and the lancet keeps retracted after the cover is opened, the convenience and safety of use are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the opening cover state of the coffee machine with the telescopic needle structure.

[0016] Figure 2 It is an exploded schematic diagram of the telescopic needle structure of the coffee machine.

[0017] Figure 3 It is a schematic diagram of the closing cover state of the coffee machine with the telescopic needle structure.

[0018] Figure 4 It is a schematic diagram of the handle and the latch in the first position of the coffee machine with the telescopic needle structure.

[0019] Figure 5 It is a schematic diagram of the handle and the crank in the first position of the coffee machine with the telescopic needle structure.

[0020] Figure 6 It is a schematic diagram of the lancet and the sliding frame in the first position of the coffee machine with the telescopic needle structure.

[0021] Figure 7 It is a schematic diagram of the third rotating shaft and the torsional spring in the first position of the coffee machine with the telescopic needle structure.

[0022] Figure 8 It is a schematic diagram of the handle and the latch in the second position of the coffee machine with the telescopic needle structure.

[0023] Figure 9 It is a schematic diagram of the handle and the crank in the second position of the coffee machine with the telescopic needle structure.

[0024] Figure 10 It is a local enlarged schematic diagram of the handle and the latch in the second position of the coffee machine with the telescopic needle structure.

[0025] Figure 11 It is a local enlarged schematic diagram of the handle and the crank in the second position of the coffee machine with the telescopic needle structure.

[0026] Figure 12 Figure 6 is a partial enlarged view of the handle and the latch of the coffee machine in the first position of the telescopic needle structure according to the present application.

[0027] Figure 13 Figure 7 is a partial enlarged view of the handle and the crank of the coffee machine in the first position of the telescopic needle structure according to the present application. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0029] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0030] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Figures 1-13 A telescopic needle structure and a coffee machine according to some embodiments of the present application are described below.

[0034] A retractable needle structure, comprising a handle 1, a top cover 2 and a lower cover 3, the lower cover 3 is arranged on the upper part of a body 4 and is hinged with the body 4, a needle device is arranged in a containing cavity 5 formed by the top cover 2 and the lower cover 3, the handle 1 is hinged with the lower cover 3 and rotates relative to the top cover 2 between a first position and a second position, the needle device comprises a sliding seat 7 sleeved on a plurality of guide columns 6 of the lower cover 3, a needle 8 is arranged on the sliding seat 7, a crank 9 is arranged on the lower part of the handle 1, a guide groove 10 is arranged in the crank 9, a first rotating shaft 11 is arranged in the guide groove 10 and is rotationally connected with the sliding seat 7, the first rotating shaft 11 moves in the guide groove 10 to drive the sliding seat 7 to realize the extension and retraction of the needle 8.

[0035] In the scheme, the extension and retraction of the needle 8 is realized by the rotation of the handle 1 between the first position and the second position, therefore, the rotation of the handle 1 between the first position and the second position is realized by the opening and closing of the cover.

[0036] When the cover needs to be opened:

[0037] The handle 1 is in the closed state of the first position by default, the handle 1 is pulled to drive the second rotating shaft 13 to rotate, the end part of the second rotating shaft 13 is provided with a swing hook 17, the swing hook 17 is rotated to be separated from the adjacent stop block 18 arranged on the body 4, at the same time, the handle 1 drives the cranks 9 arranged on the lower part of the handle 1 to rotate, the guide groove 10 is arranged in the crank 9, the guide groove 10 comprises a straight section 19 and a circular arc section 20, the first rotating shaft 11 is located in the straight section 19 when the handle 1 is in the first position, the crank 9 drives the first rotating shaft to move from the straight section 19 to the circular arc section 20, the first rotating shaft 11 slides from the straight section 19 to the circular arc section 20 when the handle 1 is in the second position, at the same time, the fixed seat 12 is arranged on the two sides of the lower cover 3, the handle 1 is hinged with the fixed seat 12 through the second rotating shaft 13, the protruding end part of the second rotating shaft 13 is provided with a plug 14 which is arranged in the radial direction, the second rotating shaft 13 drives the plug 14 to rotate vertically.

[0038] When the handle 1 is turned to the second position, the swing hook 17 is disengaged from the stopper 18 arranged on the adjacent body 4; the first rotating shaft 11 is moved from the flat section 19 to the circular arc section 20, thereby driving the sliding seat 7 to be lifted from the lower cover 3; the sliding seat 7 is provided with a needle seat 24 at the center, the needle seat 24 is provided with a horizontal inner hole 25 and a vertical inner hole 26 which are connected in communication, the horizontal inner hole 24 is communicated with the water inlet channel of the body 4, and the needle 8 is arranged at the end of the vertical inner hole 26 and penetrates through the lower cover 3 to extend into the body 4, so that the lifting of the sliding seat 7 also drives the needle 8 to retract into the bottom surface of the lower cover 3; the fixed seat 12 is provided with a vertical limiting through hole 15 which penetrates through the lower cover 3, and the handle 1 is turned to the second position to drive the latch 14 to be vertically arranged above the limiting through hole 15, and the latch 14 falls into the limiting through hole 15 to limit the continuous rotation of the handle 1 and keep the handle 1 at the second position.

[0039] Since the limiting through hole 15 is also provided with a movable limiting support 16, when the latch 14 falls into the limiting through hole 15, the top of the limiting support 16 is pushed to make the bottom of the limiting support 16 extend out from below the lower cover 3 to abut against the body 4 and swing the lower cover 3; the swing hook 17 is disengaged from the stopper 18 arranged on the adjacent body 4, and the rotation of the lower cover 3 is released; the handle 1 is continuously pulled to drive the lower cover 3 to be overturned to realize the opening of the cover.

[0040] When the cover needs to be closed:

[0041] The handle 1 is pressed downward to drive the lower cover 3 to be overturned to close the cover;

[0042] The bottom of the limiting support 16 exposed on the bottom surface of the lower cover 3 is abutted by the body 4 to drive the top of the limiting support 16 to push the latch 14 out of the limiting through hole 15, thereby releasing the rotation limitation of the handle 1;

[0043] The handle 1 is continuously pressed to be turned from the second position to the first position, the crank 9 is turned to drive the first rotating shaft to move from the circular arc section 20 to the flat section 19, and the sliding seat 7 is lowered again; when the handle 1 is turned to the first position, the needle 7 is extended into the body 4 again, the swing hook 17 hooks the stopper 18 to limit the rotation of the lower cover 3; thus, the closing of the cover is completed.

[0044] When the handle 1 is at the first position, the needle 8 is normally extended; when the handle 1 is at the second position, the needle 8 is retracted into the bottom surface of the lower cover 3 and is not exposed. Only when the handle 1 is turned to the second position, the cover can be opened, and the needle 8 is always in the retracted state after the cover is opened, thereby avoiding accidental injuries caused by exposure. Only after the cover is closed, the handle 1 is turned from the second position to the first position and the needle is extended. Therefore, during the whole opening and closing process, the reliability of the extension and retraction of the needle 8 is good, and the linkage between the opening and closing of the cover also realizes high convenience and safety.

[0045] In the embodiment, a rotatable sleeve can be further arranged outside the first rotating shaft 11 to reduce the frictional resistance when the first rotating shaft 11 moves in the guide groove 10, so that the handle 1 can be pulled more easily; the inner hole of the sleeve is circular to match the first rotating shaft 11, and the outer shape of the sleeve can be circular or circular square, preferably circular square; the straight edge part of the square can better fit the edges of the flat section 19 and the circular arc section 20 of the guide groove 10, and the circular corner is beneficial to the rotation of the sleeve, realizing good reliability of the handle 1 in the first position and the second position.

[0046] Further, the lower cover 3 is further provided with a micro switch 21 matched with the crank 11, the micro switch 21 controls the start of the water inlet, heating and other programs of the coffee machine, only when the handle 1 is located in the first position, the crank 11 presses the micro switch 21 to start the water inlet, heating and other programs, so as to avoid the misoperation when the cover is opened or not normally closed, further improving the safety.

[0047] The lower cover 3 is hinged to the machine body 4 through the second rotating shaft 13, and a torsional spring 22 is further arranged between the second rotating shaft 13 and the machine body 4; one end of the torsional spring 22 is arranged on the lower side of the third rotating shaft 27, and the other end is arranged on the machine body 4. When the cover needs to be opened, the torsional force of the torsional spring 22 needs to be overcome when the lower cover 3 is turned over, and when the lower cover 3 is turned over to a certain angle, the torsional force of the torsional spring 22 is released and continues to assist the lower cover 3 to turn over to the maximum opening position; conversely, when the cover is closed, a certain torsional force needs to be overcome first, and then the cover is closed more easily with the assistance of the torsional spring 22. By arranging the torsional spring 22, a more reasonable pressure effect is realized during the opening and closing of the cover.

[0048] Further, elastic elements can be arranged on the guide column 6, so that the sliding seat 7 has better reliability when it is raised and lowered; elastic elements can also be arranged on the latch 14, so that the reliability of the handle 1 when it is rotated and released is realized.

[0049] The application further provides a coffee machine comprising a machine body for completing water inlet, heating and other functions and the telescopic needle structure.

[0050] Although the embodiments of the application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A telescopic needle structure, comprising a handle, a top cover, and a bottom cover, wherein the bottom cover is disposed on the upper part of a machine body and hinged to the machine body, a needle device is disposed within a cavity formed by the top cover and the bottom cover when closed, and the handle is hinged to the bottom cover and rotates relative to the top cover between a first position and a second position, characterized in that... The needle device comprises a sliding seat sleeved on the guide posts of the lower cover, the sliding seat is provided with the needle, the lower part of the handle is provided with a crank, the crank is provided with a guide slot, the guide slot is provided with a first rotating shaft which is rotationally connected with the sliding seat, the first rotating shaft moves in the guide slot to drive the sliding seat to realize the extension and retraction of the needle; the lower cover is provided with a fixed seat on both sides, the handle is hingedly connected with the fixed seat through a second rotating shaft, the second rotating shaft is provided with a latch on the protruding end of the fixed seat along the radial direction, the fixed seat is provided with a vertical limiting through hole which penetrates the lower cover, when the handle is rotated to the second position, the latch is rotated to be above the limiting through hole, the latch falls into the limiting through hole to limit the continuous rotation of the handle; the end of the second rotating shaft is further provided with a swing hook, the swing hook is matched with a stopper arranged on the adjacent body, when the handle is located at the first position, the swing hook hooks the stopper to limit the rotation of the lower cover, when the handle is located at the second position, the swing hook is disengaged from the stopper to release the limitation on the rotation of the lower cover.

2. A retracting needle structure according to claim 1, wherein The limiting through hole is further provided with a movable limiting support, when the top of the limiting support is pushed by the latch which enters the limiting through hole, the bottom of the limiting support extends from below the lower cover to abut against the body and swing the lower cover; when the bottom of the limiting support is pushed by the body, the top of the limiting support pushes the latch out of the limiting through hole to release the limitation on the rotation of the handle.

3. The retracting needle structure of claim 1, wherein The crank is arranged on both sides of the lower part of the handle, the guide slot comprises a straight section and a circular arc section, when the handle is located at the first position, the first rotating shaft is located in the straight section, when the handle is located at the second position, the first rotating shaft slides from the straight section to the circular arc section.

4. The retracting needle structure of claim 1, wherein The lower cover is further provided with a micro switch which is matched with the crank, when the handle is located at the first position, the crank presses the micro switch.

5. The retracting needle structure of claim 1, wherein The lower cover is hingedly connected with the body through a second rotating shaft, the second rotating shaft and the body are further provided with a torsional spring, one end of the torsional spring is arranged on the lower side of the second rotating shaft, and the other end is arranged on the body.

6. The retracting needle structure of claim 1, wherein The center of the sliding seat is provided with a needle seat, the needle seat is provided with a horizontal inner hole and a vertical inner hole which are connected, the horizontal inner hole is communicated with the water inlet channel of the body, and the needle is arranged at the end of the vertical inner hole and penetrates the lower cover to extend into the body.

7. A coffee maker, characterized in that The body and the telescopic needle structure of any one of claims 1-6 are included.

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