A switch assembly and a coffee maker

Abstract

This utility model relates to the field of coffee machine technology, specifically a switch assembly, including a housing with a bracket fixed to it. The bracket has a retractable elastic push rod assembly. A switch, fixed to the bracket, has contacts. A lever, rotatably mounted on the housing, has a cam assembly corresponding to the contacts and a limiting assembly corresponding to the elastic push rod assembly. The limiting assembly has a limiting groove, a stop groove not connected to the limiting groove, and a beveled portion connected to the limiting groove. When the switch is not activated, the limiting groove corresponds to the elastic push rod assembly. When the lever is rotated until the stop groove corresponds to the elastic push rod assembly, the cam assembly contacts the contacts, and the switch is in an activated and self-locking mode. When the lever is rotated until the beveled portion corresponds to the elastic push rod assembly, the cam assembly contacts the contacts, and the switch is in an activated and self-resetting mode. This design provides the switch assembly with two operating modes for greater convenience.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and specifically to a switch assembly and a coffee machine. Background Technology

[0002] Currently, the steam and hot water switches on coffee machines on the market are usually self-locking switches with a single working mode. That is, once the switch is turned on, it is in a self-locking state. After steam or hot water has been produced for a certain period of time, you need to manually turn the switch back to turn it off.

[0003] For example, utility model patent CN222708049U discloses a steam control switch valve device for a coffee machine. In this prior art, when the switch knob is not rotated, the microswitch is not triggered, and the switch valve is in the closed state. When the switch knob is rotated, the microswitch is triggered, and the switch valve is in the open state. To stop, the switch knob needs to be rotated in the opposite direction to close the switch valve. This prior art has a single function and is only suitable for situations where water or steam is produced for a long time. However, for situations where water or steam is only produced briefly, this prior art requires frequent forward and reverse rotation of the switch knob to control frequent opening and closing, which is extremely inconvenient to operate.

[0004] Therefore, there is still room for improvement and development in existing technologies. Utility Model Content

[0005] To address the problems of existing technologies, this utility model provides a switch assembly and a coffee machine. The switch assembly has two working modes: an activation and self-locking mode and an activation and self-reset mode. The activation and self-locking mode is suitable for situations where water or steam is dispensed for an extended period of time, while the activation and self-reset mode is suitable for situations where water or steam is dispensed only briefly, making it more convenient to use.

[0006] To achieve the above objectives, the technical solution applied in this utility model is as follows:

[0007] A switch assembly includes a housing with a bracket fixed to it. The bracket has a retractable elastic push rod assembly. A switch, fixed to the bracket, has contacts. A lever, rotatably mounted on the housing, has a cam assembly corresponding to the contacts and a limiting assembly corresponding to the elastic push rod assembly. The limiting assembly has a limiting groove, a stop groove not connected to the limiting groove, and a beveled portion connected to the limiting groove. When the switch is not activated, the limiting groove corresponds to the elastic push rod assembly. When the lever is rotated until the stop groove corresponds to the elastic push rod assembly, the cam assembly contacts the contacts, and the switch is in an activated and self-locking mode. When the lever is rotated until the beveled portion corresponds to the elastic push rod assembly, the cam assembly contacts the contacts, and the switch is in an activated and self-resetting mode. This configuration provides the switch assembly with two operating modes: an activated and self-locking mode and an activated and self-resetting mode, making it more convenient to use.

[0008] The activation and self-locking modes are suitable for situations where water or steam is output for a long time. When the switch is not activated, the limit groove corresponds to the elastic push rod assembly. Rotating the lever activates the switch and makes the stop groove correspond to the elastic push rod assembly. Since the stop groove and the limit groove are not connected, the lever cannot return to the limit groove after being released. This mode can be used for long-term water or steam output. When water or steam output stops, rotating the lever in the opposite direction will cause the lever to return to the limit groove under the action of force, thus closing the switch.

[0009] The activation and self-reset modes are suitable for short-term water or steam output. When the switch is not activated, the limit groove corresponds to the elastic push rod assembly. Rotating the lever activates the switch and aligns the inclined part with the elastic push rod assembly. Since the inclined part is connected to the limit groove, when the lever is released, it can automatically reset from the inclined part back into the limit groove without needing to rotate the lever in the opposite direction to turn off the switch. This process achieves short-term water or steam output.

[0010] According to the above scheme, the bracket is provided with a mounting base, and the elastic push rod assembly includes a push rod and a spring. The push rod is telescopically located within the mounting base via the spring, and a guide assembly is provided between the push rod and the mounting base. When the switch is not activated, the push rod abuts against the corresponding limiting groove. When the lever is rotated to activate the switch, the push rod can slide out from the limiting groove to the stop groove or the inclined surface. With this configuration, the push rod, under the elastic force of the spring, always abuts against the limiting assembly on the lever. Specifically, when the switch is not activated, the push rod, under the elastic force of the spring, always abuts against the limiting groove; in the activation and self-locking modes, the push rod, under the elastic force of the spring, always abuts against the stop groove; in the activation and self-reset modes, the push rod, under the elastic force of the spring, slides along the inclined surface.

[0011] According to the above scheme, the spring is sleeved on the top rod, the top rod is provided with a limiting block, and the mounting base is provided with a limiting step. The two ends of the spring abut against the limiting block and the limiting step, respectively. With this configuration, when the top rod is retracted under force, the spring is in a compressed state under the action of the limiting block and the limiting step.

[0012] According to the above scheme, the guiding assembly includes a guide post disposed on the top rod and a guide hole disposed on the mounting base, with the guide post and guide hole slidably connected. This arrangement ensures that the top rod slides unevenly during telescopic movement, resulting in more stable sliding.

[0013] According to the above scheme, the end of the push rod is formed with a round head, and both the limiting groove and the stopping groove are arc-shaped grooves, with a partition protruding between the limiting groove and the stopping groove. This design, with the round head and the arc-shaped grooves working together, facilitates the push rod sliding out of the limiting groove and the stopping groove when the lever is rotated under force. The partition protruding between the limiting groove and the stopping groove prevents them from connecting; that is, when the push rod is in the stopping groove, it cannot automatically return to the limiting groove due to the partition blocking it. Only under the action of force can the lever be rotated to return the push rod to the limiting groove.

[0014] According to the above scheme, the cam assembly includes a first cam and a second cam. A clearance groove corresponding to the contact is formed between the first and second cams. When the push rod aligns with the limiting groove, the contact is located within the clearance groove; when the push rod aligns with the stop groove, the second cam contacts the contact; when the push rod aligns with the inclined surface, the first cam contacts the contact. With this configuration, when the switch is not activated, the contact is located within the clearance groove, and the push rod abuts against the limiting groove. When the lever is rotated until the push rod aligns with the stop groove, the second cam contacts the contact; this is the activation and self-locking mode. When the lever is rotated until the push rod aligns with the inclined surface, the first cam contacts the contact; this is the activation and self-resetting mode.

[0015] According to the above scheme, the lever is rotatably mounted on the housing via a pivot. An inner cavity is formed inside the housing, with the first end of the lever located within this cavity. A cam assembly and a limiting assembly are fixed side-by-side to the first end of the lever, and the second end of the lever extends out of the housing and is slidably connected to it. This configuration ensures that rotating the lever synchronously drives the cam assembly and the limiting assembly to rotate as well.

[0016] According to the above scheme, the housing is provided with a sliding groove that is slidably connected to the lever. This design, under the action of the sliding groove, limits the travel of the lever during rotation.

[0017] When the lever is in the stop groove, it is also at one end of the slide groove; when the lever is in the inclined section, it is also at the other end of the slide groove.

[0018] According to the above design, the bracket is equipped with a fixing buckle for fixed connection with the switch. This design allows the switch to be fixed in place by a buckle, making assembly convenient.

[0019] The coffee machine described in this utility model includes the aforementioned switch assembly.

[0020] The beneficial effects of this utility model are:

[0021] This invention features a switch assembly with two operating modes: an activation and self-locking mode, and an activation and self-reset mode. The activation and self-locking mode is suitable for situations requiring prolonged water or steam output, while the activation and self-reset mode is suitable for situations requiring brief water or steam output, making it more convenient to use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a switch assembly according to the present invention;

[0023] Figure 2 This is a schematic diagram of the lever of this utility model;

[0024] Figure 3 This is an assembly drawing of the bracket and switch of this utility model;

[0025] Figure 4 This is a cross-sectional view of the bracket and switch assembly of this utility model;

[0026] Figure 5 This is an assembly drawing of the push rod and the lever of this utility model;

[0027] Figure 6 This is a schematic diagram of the cam and contact when the switch of this utility model is not activated;

[0028] Figure 7 This is a schematic diagram of the push rod and limit assembly when the switch of this utility model is not activated;

[0029] Figure 8 This is a schematic diagram of the cam and contact points in the switch activation and self-locking modes of this utility model;

[0030] Figure 9 This is a schematic diagram of the push rod and limit assembly in the switch activation and self-locking modes of this utility model;

[0031] Figure 10 This is a schematic diagram of the cam and contact points in the switch activation and self-reset modes of this utility model;

[0032] Figure 11 This is a schematic diagram of the push rod and limit assembly in the switch activation and self-reset modes of this utility model.

[0033] In the picture:

[0034] 1. Lever; 11. Clearance groove; 12. First cam; 13. Second cam; 14. Limiting groove; 15. Stop groove; 16. Separator; 17. Sloping part; 2. Housing; 3. Rotating shaft; 4. Bracket; 41. Mounting base; 42. Fixing buckle; 43. Guide hole; 44. Limiting step; 5. Top rod; 51. Limiting block; 52. Guide post; 6. Switch; 61. Contact; 7. Spring. Detailed Implementation

[0035] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0036] like Figures 1 to 11 As shown, the present invention discloses a switch assembly comprising a housing 2, a bracket 4 fixed on the housing 2, and a retractable elastic push rod assembly on the bracket 4; a switch 6 fixed on the bracket 4, and a contact 61 on the switch 6; and a lever 1 rotatably mounted on the housing 2, the lever 1 having a cam assembly corresponding to the contact 61 and a limiting assembly corresponding to the elastic push rod assembly. The limiting assembly has a limiting groove 14, a stop groove 15 not connected to the limiting groove 14, and a beveled portion 17 connected to the limiting groove 14. When the switch 6 is not activated, the limiting groove 14 corresponds to the elastic push rod assembly. When the lever 1 is rotated until the stop groove 15 corresponds to the elastic push rod assembly, the cam assembly contacts the contact 61, and the switch 6 is in an activated and self-locking mode. When the lever 1 is rotated until the beveled portion 17 corresponds to the elastic push rod assembly, the cam assembly contacts the contact 61, and the switch 6 is in an activated and self-resetting mode. With this configuration, the switch component has two operating modes: one is the activation and self-locking mode, and the other is the activation and self-reset mode, making it more convenient to use.

[0037] The activation and self-locking modes are suitable for situations where water or steam is output for a long time. When the switch 6 is not activated, the limit groove 14 corresponds to the elastic push rod assembly. Rotating the lever 1 activates the switch 6 and makes the stop groove 15 correspond to the elastic push rod assembly. Since the stop groove 15 and the limit groove 14 are not connected, the lever 1 cannot return to the limit groove 14 after being released. This can be used for long-term water or steam output. When the water or steam output stops, rotating the lever 1 in the opposite direction will cause the lever 1 to return to the limit groove 14 under the action of force, thus closing the switch 6.

[0038] The activation and self-reset modes are applicable to situations where water or steam is briefly released. When switch 6 is not activated, the limit groove 14 corresponds to the elastic push rod assembly. Rotating lever 1 activates switch 6 and aligns the inclined part 17 with the elastic push rod assembly. Since the inclined part 17 is connected to the limit groove 14, when lever 1 is released, lever 1 can automatically reset from the inclined part 17 back into the limit groove 14 without needing to rotate lever 1 in the opposite direction to turn off switch 6. This process achieves a brief water or steam release.

[0039] Furthermore, the bracket 4 is provided with a mounting base 41, and the elastic push rod assembly includes a push rod 5 and a spring 7. The push rod 5 is telescopically located within the mounting base 41 via the spring 7, and a guide assembly is provided between the push rod 5 and the mounting base 41. When the switch 6 is not activated, the push rod 5 abuts against the limiting groove 14. When the lever 1 is rotated to activate the switch 6, the push rod 5 can slide out from the limiting groove 14 to the stop groove 15 or the inclined surface 17. With this configuration, the push rod 5 always abuts against the limiting assembly on the lever 1 under the elastic force of the spring 7. Specifically, when the switch 6 is not activated, the push rod 5 always abuts against the limiting groove 14 under the elastic force of the spring 7; in the activation and self-locking mode, the push rod 5 always abuts against the stop groove 15 under the elastic force of the spring 7; and in the activation and self-reset mode, the push rod 5 slides along the inclined surface 17 under the elastic force of the spring 7.

[0040] Furthermore, the spring 7 is sleeved on the top rod 5, the top rod 5 is provided with a limiting block 51, and the mounting base 41 is provided with a limiting step 44. The two ends of the spring 7 abut against the limiting block 51 and the limiting step 44 respectively. With this arrangement, when the top rod 5 is retracted by force, the spring 7 is in a compressed state under the action of the limiting block 51 and the limiting step 44.

[0041] Furthermore, the guide assembly includes a guide post 52 disposed on the top rod 5 and a guide hole 43 disposed on the mounting base 41, with the guide post 52 and the guide hole 43 slidably connected. This arrangement ensures that the top rod 5 does not slide unevenly during its extension and retraction, resulting in more stable sliding.

[0042] Furthermore, the end of the push rod 5 is formed with a rounded head, and both the limiting groove 14 and the stop groove 15 are arc-shaped grooves. A partition 16 protrudes between the limiting groove 14 and the stop groove 15. With this configuration, the rounded head and the arc-shaped grooves cooperate to facilitate the push rod 5 sliding out of the limiting groove 14 and the stop groove 15 when the lever 1 is rotated under force. The partition 16 protrudes between the limiting groove 14 and the stop groove 15, so that the limiting groove 14 and the stop groove 15 are not connected. That is, when the push rod 5 is in the stop groove 15, it cannot return to the limiting groove 14 by itself due to the blocking effect of the partition 16. Only under the action of force can the lever 1 be rotated to make the push rod 5 return to the limiting groove 14.

[0043] The opening side of the limiting groove 14 and the inclined surface 17 are connected in a straight line, which facilitates the back-and-forth sliding of the round head of the top rod 5 to achieve self-reset.

[0044] Furthermore, the cam assembly includes a first cam 12 and a second cam 13. A clearance groove 11, corresponding to the contact 61, is formed between the first cam 12 and the second cam 13. When the push rod 5 aligns with the limiting groove 14, the contact 61 is located within the clearance groove 11; when the push rod 5 aligns with the stop groove 15, the second cam 13 contacts the contact 61; and when the push rod 5 aligns with the inclined surface 17, the first cam 12 contacts the contact 61. With this configuration, when the switch 6 is not activated, the contact 61 is located within the clearance groove 11, and the push rod 5 abuts against the limiting groove 14. When the lever 1 is rotated until the push rod 5 aligns with the stop groove 15, the second cam 13 contacts the contact 61, which is the activation and self-locking mode. When the lever 1 is rotated until the push rod 5 aligns with the inclined surface 17, the first cam 12 contacts the contact 61, which is the activation and self-resetting mode.

[0045] Furthermore, the lever 1 is rotatably mounted on the housing 2 via the pivot 3. The housing 2 has an inner cavity, and the first end of the lever 1 is located within the inner cavity. The cam assembly and the limiting assembly are fixed side by side to the first end of the lever 1, and the second end of the lever 1 extends out of the housing 2 and is slidably connected to the housing 2. This arrangement ensures that rotating the lever 1 drives the cam assembly and the limiting assembly to rotate synchronously.

[0046] Furthermore, the housing 2 is provided with a sliding groove that is slidably connected to the lever 1. This design limits the travel of the lever 1 during rotation under the action of the sliding groove.

[0047] When lever 1 is located in stop groove 15, lever 1 is also located at one end of slide groove; when lever 1 is located in inclined section 17, lever 1 is also located at the other end of slide groove.

[0048] Furthermore, the bracket 4 is provided with a fixing buckle 4 for fixed connection with the switch 6. This design allows the switch 6 to be fixed in place by a buckle, making assembly convenient.

[0049] The coffee machine described in this utility model includes the aforementioned switch assembly.

[0050] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims, and all of these forms are within the scope of protection of the present utility model.

Claims

1. A switching assembly, characterized in that, include: A housing (2), on which a bracket (4) is fixed, and on which a retractable elastic push rod assembly is provided; a switch (6), on which the switch (6) is fixed to the bracket (4), and on which a contact (61) is provided; A lever (1) is rotatably mounted on a housing (2). The lever (1) is provided with a cam assembly corresponding to the contact point (61) and a limiting assembly corresponding to the elastic push rod assembly. The limiting assembly is provided with a limiting groove (14), a stop groove (15) not connected to the limiting groove (14), and a beveled part (17) connected to the limiting groove (14). When the switch (6) is not activated, the limiting groove (14) corresponds to the elastic push rod assembly. When the lever (1) is rotated to the stop groove (15) corresponding to the elastic push rod assembly, the cam assembly contacts the contact (61), and the switch (6) is in the activated and self-locking mode. When the lever (1) is rotated to the inclined surface (17) corresponding to the elastic push rod assembly, the cam assembly contacts the contact (61), and the switch (6) is in the activated and self-resetting mode.

2. A switching assembly according to claim 1, characterized in that: The bracket (4) is provided with a mounting base (41). The elastic push rod assembly includes a push rod (5) and a spring (7). The push rod (5) is telescopically located in the mounting base (41) by the spring (7). A guide assembly is provided between the push rod (5) and the mounting base (41). When the switch (6) is not activated, the push rod (5) abuts against the limiting groove (14). When the lever (1) is rotated to activate the switch (6), the push rod (5) can slide out from the limiting groove (14) to the stop groove (15) or the inclined surface (17).

3. A switching assembly according to claim 2, characterized in that: The spring (7) is sleeved on the top rod (5), the top rod (5) is provided with a limiting block (51), the mounting base (41) is provided with a limiting step (44), and the two ends of the spring (7) abut against the limiting block (51) and the limiting step (44) respectively.

4. A switching assembly according to claim 2, characterized in that: The guide assembly includes a guide post (52) on the top rod (5) and a guide hole (43) on the mounting base (41), wherein the guide post (52) and the guide hole (43) are slidably connected.

5. A switching assembly according to claim 2, characterized in that: The top rod (5) has a round head at its end. The limiting groove (14) and the stop groove (15) are both arc-shaped grooves. A partition (16) protrudes between the limiting groove (14) and the stop groove (15).

6. A switching assembly according to claim 2, characterized in that: The cam assembly includes a first cam (12) and a second cam (13). A clearance groove (11) corresponding to the contact point (61) is formed between the first cam (12) and the second cam (13). When the push rod (5) corresponds to the limiting groove (14), the contact point (61) is located in the clearance groove (11). When the push rod (5) corresponds to the stop groove (15), the second cam (13) contacts the contact point (61). When the push rod (5) corresponds to the inclined surface (17), the first cam (12) contacts the contact point (61).

7. A switching assembly according to claim 2, characterized in that: The lever (1) is rotatably mounted on the housing (2) via a rotating shaft (3). The housing (2) has an inner cavity formed inside. The first end of the lever (1) is located inside the inner cavity. The cam assembly and the limiting assembly are fixed side by side to the first end of the lever (1). The second end of the lever (1) extends out of the housing (2) and is slidably connected to the housing (2).

8. A switching assembly according to claim 7, characterized in that: The housing (2) is provided with a sliding groove that is slidably connected to the lever (1).

9. A switching assembly according to claim 2, characterized in that: The bracket (4) is provided with a fixing buckle (4) that is fixedly connected to the switch (6).

10. A coffee machine, characterized in that: Includes the switching assembly as described in any one of claims 1-9.

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