Semi-automatic coffee machine
By designing the structure of the opening and closing push-block drive contact rod in the steam conversion valve of the semi-automatic coffee machine, the problem of the steam knob requiring multiple rotations in the prior art is solved, and the rotation angle of the steam knob is reduced and user operation is facilitated. change.
Patent Information
- Application Number
- CN202421545702.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The steam conversion valve of the existing semi-automatic coffee machine adopts a valve stem structure, and requires the axial movement of the valve stem through multiple rotations, resulting in trouble in operation.
A steam conversion valve structure including a valve body, a sealing gasket, a return spring and a contact rod is designed. The contact rod is driven by the opening and closing push block, so that the valve body sealing gasket is separated or sealed from the opening, thereby realizing the conduction and closing of steam. .
The rotation angle of the steam knob is reduced, the user's sense of use is optimized, and through the design of the gear shrapnel, a collision sound is made to remind the user to switch the steam state.
Smart Images
Figure CN222443871U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coffee beverage making utensils, in particular to a semi-automatic coffee machine. Background Art
[0002] Semi-automatic coffee machines are relative to fully automatic coffee machines. Automatic means that after filling the beans and pressing the powder, you only need to turn a knob or press a button to get the desired coffee. Semi-automatic means that it cannot grind beans. Usually, the coffee powder is pressed into the coffee handle group and used with the main body to make the desired coffee. At present, the market demand for semi-automatic coffee machines is relatively large. When most of the existing semi-automatic coffee machines use steam, they need to turn the steam knob multiple times to control the opening and closing. Because most of the existing steam conversion valves use a valve stem structure, it is necessary to control the axial movement of the valve stem in and out by turning the steam knob multiple times. When the user is in use, the valve stem needs to be turned open or closed in place, otherwise it will affect the steam discharge and steam sealing, resulting in more troublesome operation. Summary of the invention
[0003] In order to achieve the above-mentioned purpose, the utility model provides a specific technical solution: a semi-automatic coffee machine, comprising a main body, a steam knob is provided on the main body, a steam conversion valve is installed in the main body, the steam conversion valve comprises a valve body, an opening is provided in the valve body, the opening is sealed by a valve body sealing gasket, the valve body sealing gasket is pushed up by a return spring, a contact rod with a diameter smaller than the opening is provided on the valve body sealing gasket, the contact rod passes through the opening, a rotating shaft is provided on the valve body, the contact rod is close to the rotating shaft, an opening and closing push block is provided on the rotating shaft, the steam knob is connected to the rotating shaft, and the opening and closing push block can drive the contact rod.
[0004] Preferably, the steam knob can make the rotating shaft drive the opening and closing push block to rotate, and the opening and closing push block drives the contact rod to push back the valve body sealing gasket, so that the valve body sealing gasket is separated from the opening. At the same time, the valve body sealing gasket squeezes the reset spring. At this time, it is in the steam conduction state, and steam can pass through the opening. The steam knob is rotated again to make the rotating shaft drive the opening and closing push block to rotate, so that the opening and closing push block does not contact the contact rod, and the reset spring pushes the valve body sealing gasket to reset, so that the valve body sealing gasket seals the opening. The contact rod passes through the opening again and waits for the next work. At this time, it is in the steam closed state, and steam cannot pass through the opening.
[0005] Preferably, a steam inlet pipe is provided on the valve body, the steam inlet pipe is connected to the shaft socket, the shaft socket is connected to the steam outlet pipe, a shaft is rotatably mounted on the shaft socket, openings for steam to pass through are provided on both sides of the shaft socket, a contact rod can pass through the opening on one side of the shaft socket, a starting rod is provided on the shaft, an opening and closing push block is provided on the starting rod, and the contact rod passes through the opening and is close to the starting rod of the shaft.
[0006] Preferably, the starting rod is close to openings on both sides of the rotating shaft socket. When the rotating shaft rotates, the opening on one side of the rotating shaft socket can be blocked by the opening and closing push block. A valve body sealing ring is mounted on the rotating shaft. The valve body sealing ring is used to seal the gap between the rotating shaft and the rotating shaft socket, so that steam can be released normally from the steam outlet pipe to prevent steam leakage.
[0007] Preferably, a rotating shaft is provided with a rotating rod socket, a valve body bracket is mounted on the rotating rod socket, a rotating rod is provided on the steam knob, the steam knob is inserted into the rotating rod socket after passing through the valve body bracket through the rotating rod, and the rotating shaft can be controlled by rotating the steam knob.
[0008] Preferably, a switch fixing position is provided on the valve body bracket, and a micro switch is installed on the switch fixing position. The micro switch is close to the rotating shaft, and a switch push block is provided on the rotating shaft. The switch push block can contact the micro switch when it rotates. When the steam knob drives the rotating shaft to rotate, the switch push block rotates to trigger the micro switch to work.
[0009] Preferably, the valve body bracket is provided with a spring slot, in which a gear spring is installed, and the rotating shaft is provided with a gear. The gear spring is in elastic contact with the gear. When the steam knob drives the rotating shaft to rotate, the gear spring provides resistance to prevent the steam knob from loosening and being easy to rotate, thereby accidentally starting and closing the steam operation.
[0010] Preferably, the position of the micro switch on the valve body bracket is higher than the spring slot, and the position of the switch push block on the rotating shaft is higher than the gear position, so as to ensure smooth operation without mutual influence.
[0011] Preferably, the main body is detachably provided with a water tank, a display for displaying the current status and pressure is provided on the main body, a safety switch is provided on the side of the display, a coffee handle group is connected to the main body, a steam rod for frothing milk is movably provided on the main body, a steam knob for controlling the start of steam is provided on the side of the main body, and the steam knob can control the opening and closing of the steam by slightly rotating it.
[0012] Preferably, a water pump is installed at the bottom of the main body, a steam generator is installed at the rear side of the top of the main body, and a steam conversion valve is installed at the front side of the top of the main body. The water tank is connected to the water pump, the water pump is connected to the steam generator, the steam generator is connected to the steam conversion valve, the steam conversion valve is connected to the steam rod, the steam knob is connected to the steam conversion valve and controls the opening and closing of the steam conversion valve by rotation, a valve mounting hole is provided on the side of the main body, the steam knob is connected to the steam conversion valve through the valve mounting hole, the micro switch is electrically connected to the steam generator and the water pump, the steam inlet pipe is connected to the steam generator connection, and the steam outlet pipe is connected to the steam rod connection.
[0013] The utility model proposes to add an opening and closing push block on the rotating shaft to drive the contact rod and the valve body sealing gasket to move, and the return spring assists the valve body sealing gasket to seal, thereby realizing the conduction and closure of the valve body. At the same time, this structure reduces the rotation angle of the steam knob, optimizes the user's physical feeling, and also provides a gear spring piece. In addition to preventing loosening, the gear spring piece also makes a collision sound to remind the user that the steam conduction or closure switch is successful. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0015] Figure 1 This is a reference schematic diagram of the overall structural state of an embodiment of the present utility model.
[0016] Figure 2 This is a reference schematic diagram of the structural state of internal components of an embodiment of the present utility model.
[0017] Figure 3 This is a reference schematic diagram of the structural state of the steam conversion valve according to an embodiment of the present utility model.
[0018] Figure 4 This is a reference schematic diagram of the cross-sectional structure of the steam conversion valve according to an embodiment of the present utility model.
[0019] Figure 5 This is a reference schematic diagram of the valve body support structure state of an embodiment of the utility model.
[0020] Explanation of the markings in the figure: 1. Main body; 2. Steam knob; 3. Display; 4. Safety switch; 5. Steam rod; 6. Refrigerator; 7. Coffee handle group; 8. Valve installation hole; 9. Steam conversion valve; 10. Steam generator; 11. Water pump; 12. Rotating shaft; 13. Switch fixing position; 14. Valve body bracket; 15. Micro switch; 16. Valve body; 17. Valve body end cover; 18. Rotating rod plug hole; 19. Switch push block; 20. Gear position; 21. Rotating shaft plug hole; 22. Valve body sealing ring; 23. Open and close push block; 24. Start rod; 25. Contact rod; 26. Valve body sealing gasket; 27. Reset spring; 28. Steam inlet pipe; 29. Steam outlet pipe; 30. Shrapnel mounting groove; 31. Gear position shrapnel. DETAILED DESCRIPTION
[0021] The embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. The implementation methods of the present disclosure are explained below through specific examples. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification, which are further explained below in conjunction with the accompanying drawings.
[0022] See also Figure 1-5 It can be seen that an embodiment of the utility model is a semi-automatic coffee machine, comprising a main body 1, a long water tank 6 is detachably mounted on the back of the main body 1, a display 3 for displaying the current state and pressure is provided on the main body 1, a safety switch 4 is provided on the side of the display 3, a coffee handle group 7 is connected to the main body 1, a steam rod 5 for frothing milk is also movably mounted on the main body 1, a steam knob 2 for controlling the start of steam is mounted at a high position on the side of the main body 1, and the steam knob 2 can control the opening and closing of steam by slightly rotating it.
[0023] A water pump 11 is installed at the bottom of the main body 1, a steam generator 10 is installed at the rear side of the top of the main body 1, and a steam conversion valve 9 is installed at the front side of the top of the main body 1. The water tank 6 is connected to the water pump 11, the water pump 11 is connected to the steam generator 10, the steam generator 10 is connected to the steam conversion valve 9, the steam conversion valve 9 is connected to the steam rod 5, the steam knob 2 is connected to the steam conversion valve 9 and controls the opening and closing of the steam conversion valve 9 by rotation, and a valve mounting hole 8 is provided at a high position on the side of the main body 1, and the steam knob 2 is connected to the steam conversion valve 9 through the valve mounting hole 8.
[0024] The steam switching valve 9 includes a valve body 16, which is provided with a steam channel. A valve body end cover 17 for sealing the port is installed at the front end of the steam channel. The valve body end cover 17 can be removed to replace the extension tube or other accessories of the extension device. A steam inlet pipe 28 is also provided at the front end of the steam channel, and a steam outlet pipe 29 is provided at the rear end of the steam channel. A rotating shaft socket 21 is provided in the center of the steam channel. A rotating shaft 12 is rotatably installed on the rotating shaft socket 21. Openings for steam to pass through and to cooperate with the rotating shaft 12 to seal the steam are provided on both sides of the rotating shaft socket 21. The rotating shaft socket 21 can cooperate with the rotating shaft 12 to control whether the steam inlet pipe 28 and the steam outlet pipe 29 are flowing.
[0025] The rotating shaft 12 can be rotatably inserted into the rotating shaft socket 21. A valve body sealing ring 22 is mounted on the rotating shaft 12. The valve body sealing ring 22 is used to seal the gap between the rotating shaft 12 and the rotating shaft socket 21, so that steam can be normally released from the steam outlet pipe 29 to prevent steam leakage. A starting rod 24 is provided on the rotating shaft 12, and an opening and closing push block 23 is provided on the starting rod 24. The starting rod 24 is close to the openings on both sides of the rotating shaft socket 21. When the rotating shaft 12 rotates, the opening and closing push block 23 can block the opening on one side of the rotating shaft socket 21.
[0026] A return spring 27 is mounted on the valve body end cover 17, and a valve body sealing gasket 26 is inserted on the return spring 27. A contact rod 25 is provided on the valve body sealing gasket 26, and the contact rod 25 can pass through the opening on one side of the shaft insertion hole 21. The valve body end cover 17 is connected to the front end of the steam channel, so that the return spring 27 pushes the valve body sealing gasket 26, and the contact rod 25 passes through the opening on one side of the shaft insertion hole 21, so that the valve body sealing gasket 26 seals the opening, and the contact rod 25 passes through the opening and approaches the starting rod 24 of the shaft 12.
[0027] The diameter of the contact rod 25 is smaller than the diameter of the opening, and the starting rod 24 rotates to make the opening and closing push block 23 contact the contact rod 25. The opening and closing push block 23 pushes the contact rod 25 so that the valve body sealing gasket 26 does not contact the opening, so that the steam can pass through the opening and be released from the steam outlet pipe 29. The starting rod 24 rotates again to separate the opening and closing push block 23 from the contact rod 25. At this time, the reset spring 27 resets the valve body sealing gasket 26 to block the opening on one side of the rotating shaft socket 21. At the same time, the opening and closing push block 23 of the starting rod 24 rotates to block the opening on the other side of the rotating shaft socket 21.
[0028] It is worth mentioning that a double-opening seal is provided in this embodiment to make the steam more tightly sealed. Such a structure requires the steam knob 2 to rotate 180° to control the opening and closing. Of course, a single-opening structure can also be set, and there is no need to rotate the opening and closing push block 23 to the opening on the other side of the shaft socket 21. This can reduce the rotation angle of the steam knob 2, and users can set the structure according to their needs.
[0029] A rotating rod insertion hole 18 is provided on the rotating shaft 12, and a valve body bracket 14 is mounted on the rotating rod insertion hole 18. A rotating rod is provided on the steam knob 2. The steam knob 2 passes through the valve body bracket 14 and is inserted into the rotating rod insertion hole 18. Rotating the steam knob 2 can control the rotating shaft 12 to rotate.
[0030] The valve body bracket 14 is provided with a spring slot 30, in which a gear spring 31 is installed. The rotating shaft 12 is provided with a gear 20, and the gear spring 31 is in elastic contact with the gear 20. When the steam knob 2 drives the rotating shaft 12 to rotate, the gear spring 31 provides resistance to prevent the steam knob 2 from loosening and being easy to rotate, thereby accidentally starting and closing the steam work.
[0031] A switch fixing position 13 is provided on the valve body bracket 14, and a micro switch 15 is installed on the switch fixing position 13. The micro switch 15 is close to the rotating shaft 12, and a switch push block 19 is provided on the rotating shaft 12. The switch push block 19 can contact the micro switch 15 when it rotates. When the steam knob 2 drives the rotating shaft 12 to rotate, the switch push block 19 rotates to trigger the micro switch 15 to work.
[0032] The position of the micro switch 15 on the valve body bracket 14 is higher than the spring groove 30, and the position of the switch push block 19 on the rotating shaft 12 is higher than the gear position 20, so as to prevent smooth operation without affecting the micro switch 15, which is electrically connected to the steam generator 10 and the water pump 11, and the steam inlet pipe 28 is connected to the steam generator 10, and the steam outlet pipe 29 is connected to the steam rod 5.
[0033] In summary, the above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A semi-automatic coffee machine, comprising a main body (1), a steam knob (2) being provided on the main body (1), a steam conversion valve (9) being installed in the main body (1), and characterized in that: The steam switching valve (9) comprises a valve body (16), an opening is provided in the valve body (16), the opening is sealed by a valve body sealing gasket (26), the valve body sealing gasket (26) is pushed up by a return spring (27), a contact rod (25) having a diameter smaller than the opening is provided on the valve body sealing gasket (26), the contact rod (25) passes through the opening, a rotating shaft (12) is mounted on the valve body (16), the contact rod (25) is close to the rotating shaft (12), an opening and closing push block (23) is provided on the rotating shaft (12), the steam knob (2) is connected to the rotating shaft (12), and the opening and closing push block (23) can drive the contact rod (25).
2. A semi-automatic coffee machine according to claim 1, characterized in that: The steam knob (2) can cause the rotating shaft (12) to drive the opening and closing push block (23) to rotate, and the opening and closing push block (23) drives the contact rod (25) to push back the valve body sealing gasket (26), so that the valve body sealing gasket (26) is separated from the opening. At the same time, the valve body sealing gasket (26) squeezes the return spring (27). At this time, the steam is in a steam conduction state, and steam can pass through the opening. The steam knob (2) is rotated again to cause the rotating shaft (12) to drive the opening and closing push block (23) to rotate, so that the opening and closing push block (23) does not contact the contact rod (25). The return spring (27) pushes the valve body sealing gasket (26) to reset, so that the valve body sealing gasket (26) seals the opening. The contact rod (25) passes through the opening again and waits for the next operation. At this time, the steam is in a steam closed state, and steam cannot pass through the opening.
3. A semi-automatic coffee machine according to claim 2, characterized in that: The valve body (16) is provided with a steam inlet pipe (28), the steam inlet pipe (28) is connected to the rotating shaft socket (21), the rotating shaft socket (21) is connected to the steam outlet pipe (29), a rotating shaft (12) is rotatably mounted on the rotating shaft socket (21), openings for steam to pass through are provided on both sides of the rotating shaft socket (21), a contact rod (25) can pass through the opening on one side of the rotating shaft socket (21), a starting rod (24) is provided on the rotating shaft (12), an opening and closing push block (23) is provided on the starting rod (24), and the contact rod (25) passes through the opening and is close to the starting rod (24) of the rotating shaft (12).
4. A semi-automatic coffee machine according to claim 3, characterized in that: The starter rod (24) is provided with openings on both sides of the rotating shaft insertion hole (21). When the rotating shaft (12) rotates, the opening on one side of the rotating shaft insertion hole (21) can be blocked by the opening and closing push block (23). The rotating shaft (12) is sleeved with a valve body sealing ring (22). The valve body sealing ring (22) is used to seal the gap between the rotating shaft (12) and the rotating shaft insertion hole (21), so that steam can be normally released from the steam outlet pipe (29) to prevent steam leakage.
5. A semi-automatic coffee machine according to claim 4, characterized in that: The rotating shaft (12) is provided with a rotating rod insertion hole (18), and a valve body bracket (14) is mounted on the rotating rod insertion hole (18). The steam knob (2) is provided with a rotating rod, and the steam knob (2) is inserted into the rotating rod insertion hole (18) after passing through the valve body bracket (14) through the rotating rod. The rotating shaft (12) can be controlled to rotate by rotating the steam knob (2).
6. A semi-automatic coffee machine according to claim 5, characterized in that: The valve body bracket (14) is provided with a switch fixing position (13), and a micro switch (15) is installed on the switch fixing position (13). The micro switch (15) is close to the rotating shaft (12). The rotating shaft (12) is provided with a switch push block (19). When the switch push block (19) rotates, it can contact the micro switch (15). When the steam knob (2) drives the rotating shaft (12) to rotate, the switch push block (19) rotates to trigger the micro switch (15) to work.
7. A semi-automatic coffee machine according to claim 6, characterized in that: The valve body support (14) is provided with a spring piece mounting groove (30), a gear spring piece (31) is mounted in the spring piece mounting groove (30), a gear (20) is provided on the rotating shaft (12), the gear spring piece (31) is in elastic contact with the gear (20), and when the steam knob (2) drives the rotating shaft (12) to rotate, the gear spring piece (31) provides resistance, thereby preventing the steam knob (2) from being loosened and easily rotated, thereby preventing the steam operation from being accidentally started or closed.
8. A semi-automatic coffee machine according to claim 7, characterized in that: The micro switch (15) on the valve body bracket (14) is located higher than the spring plate mounting groove (30), and the switch push block (19) on the rotating shaft (12) is located higher than the gear position (20), thereby ensuring smooth operation without mutual interference.
9. A semi-automatic coffee machine according to claim 8, characterized in that: The main body (1) is provided with a detachable water tank (6), the main body (1) is provided with a display (3) for displaying the current state and pressure, a safety switch (4) is provided on the side of the display (3), a coffee handle group (7) is connected to the main body (1), a steam rod (5) for frothing milk is also movably provided on the main body (1), and a steam knob (2) for controlling the start of steam is provided on the side of the main body (1), and the steam knob (2) can control the start and stop of steam by slightly rotating it.
10. A semi-automatic coffee machine according to claim 9, characterized in that: A water pump (11) is installed at the bottom of the main body (1), a steam generator (10) is installed at the rear side of the top of the main body (1), and a steam conversion valve (9) is installed at the front side of the top of the main body (1). The water tank (6) is connected to the water pump (11), the water pump (11) is connected to the steam generator (10), the steam generator (10) is connected to the steam conversion valve (9), the steam conversion valve (9) is connected to the steam rod (5), the steam knob (2) is connected to the steam conversion valve (9) and controls the opening and closing of the steam conversion valve (9) by rotating it, a valve installation hole (8) is provided on the side of the main body (1), the steam knob (2) is connected to the steam conversion valve (9) through the valve installation hole (8), the micro switch (15) is electrically connected to the steam generator (10) and the water pump (11), the steam inlet pipe (28) is connected to the steam generator (10), and the steam outlet pipe (29) is connected to the steam rod (5).