A cup cover switch structure of a food processor

Abstract

The application relates to a pot cover switch structure of a food processor, which comprises a cup body with an opening at the top, a cup cover matched with the cup body and capable of being arranged at the opening of the cup body, characterized in that a trigger is connected to the cup cover, the middle part of the trigger is rotationally connected with the cup cover, the trigger is provided with a trigger pin, a track groove matched with the trigger pin of the trigger is arranged on the cup body, the track groove is provided with an opening, the inside of the track groove is provided with a first blocking part and a second blocking part, a torsional spring is arranged on the trigger and has an acting force for driving the trigger to rotate in a first direction, and the trigger has three states. Compared with the prior art, the application has the advantages that the inside of the track groove is provided with the first blocking part and the second blocking part, when the trigger is mistakenly triggered from the first state, the trigger pin can be blocked by the second blocking part, the pot cover still cannot be opened, and the existence of the second blocking part and the second state of the trigger can well avoid the possibility that the pot cover is opened due to the mistaken triggering of the trigger by the user.

Description

Technical Field

[0001] This invention relates to a lid switch structure for a food processor. Background Technology

[0002] Existing manually operated food processors typically assume that a user opening the lid suddenly while the motor is running at high speed is an accidental operation. Most lack safety safeguards, or simply add a sealing ring to the lid, hoping to delay the opening by increasing the tightness of the seal to allow the motor time to stop. However, without a safety mechanism, suddenly opening the lid while the motor is running at high speed can easily cause the contents to spill out, scalding the user. Furthermore, if the blades don't stop rotating in time, they may injure the user. Increasing the tightness of the seal to delay opening the lid further complicates the process. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a lid switch structure for a food processor that can prevent users from accidentally opening the lid and causing safety accidents, in contrast to the above-mentioned prior art.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problem is as follows: a cup lid switch structure for a food processor, comprising a cup body with an opening at the top, and a cup lid that cooperates with the cup body and can be placed on the opening of the cup body, characterized in that:

[0005] A trigger is connected to the cup lid, and the middle part of the trigger is rotatably connected to the cup lid. The trigger is provided with or connected to a protruding trigger pin.

[0006] The cup body is provided with a track groove that cooperates with the trigger pin of the trigger. The track groove has an opening. The track groove is provided with a first blocking part and a second blocking part. The first blocking part is provided on the first side wall inside the track groove, and the second blocking part is provided on the second side wall inside the track groove that is opposite to the first side wall.

[0007] A torsion spring acts on a trigger and has the force to drive the trigger to rotate in a first direction.

[0008] The trigger has the following three states:

[0009] First state: The trigger pin of the trigger is pressed into the track groove under the action of the torsion spring and abuts against the first blocking part in the track groove; in the first state, the cup lid is locked at the opening of the cup body;

[0010] Second state: When an external force is applied to the trigger, causing the trigger to overcome the torsion spring force and rotate a certain angle in the second direction, the trigger pin of the trigger is pressed into the track groove under the action of the torsion spring and abuts against the second blocking part in the track groove, wherein the second direction is the opposite direction to the first direction; in the second state, the cup lid is still locked at the opening of the cup body.

[0011] Third state: The trigger pin of the trigger is freely located inside the track groove, neither abutting against the first blocking part nor against the second blocking part; in the third state, as long as the cup lid is rotated in the second direction, the trigger pin of the trigger can be completely disengaged from the track groove opening, and at this time the cup lid can be moved away from the cup body opening.

[0012] Preferably, the second blocking part has an unlocking guide inclined surface that is inclined toward the opening of the track groove; when the trigger is in the second state and the trigger is released without applying external force to the trigger, the trigger pin of the trigger moves directly to the unlocking guide inclined surface under the action of the torsion spring. At this time, the trigger pin of the trigger slides along the unlocking guide inclined surface, and the trigger rotates a certain angle in the first direction under the action of the torsion spring to reach the third state.

[0013] The second blocking part has an angle with the second side wall of the track groove, so that the second blocking part forms an unlocking guide inclined surface that is inclined toward the opening of the track groove.

[0014] As another preferred embodiment, the track groove is provided with a third blocking part, which is located between the first side wall and the second side wall inside the track groove, and the third blocking part is provided with an unlocking guide inclined surface that is inclined towards the opening of the track groove; when the trigger is in the second state, releasing the trigger no longer applies external force to the trigger, and then rotating the cup cover in the second direction, the trigger pin of the trigger moves to the unlocking guide inclined surface of the third blocking part under the action of the cup cover, and then releasing the cup cover no longer applies external force to the cup cover, and the trigger pin of the trigger slides along the unlocking guide inclined surface under the action of the torsion spring, and the third state is reached when the trigger rotates a certain angle in the first direction under the action of the torsion spring.

[0015] The second blocking part is a groove opened in the direction of the track groove opening; the third blocking part is L-shaped.

[0016] As an improvement, the first sidewall inside the track groove is provided with a locking guide inclined surface that slopes from the opening toward the first blocking part. After the cup lid is placed on the opening of the cup body, the cup lid is rotated in the first direction, so that the trigger pin of the trigger slides into the track groove from the opening of the track groove. The trigger pin of the trigger slides along the locking guide inclined surface on the first sidewall inside the track groove and is locked into the first blocking part, so that the trigger is in the first state. At this time, releasing the cup lid no longer applies external force to the cup lid. The trigger pin of the trigger is pressed into the track groove under the action of the torsion spring and abuts against the first blocking part in the track groove, so that the cup lid is locked at the opening of the cup body.

[0017] Preferably, the first blocking part is arranged perpendicular to the first side wall of the track groove.

[0018] Preferably, the second blocking part is closer to the opening of the track groove than the first blocking part.

[0019] Preferably, the cup lid is provided with a lug, and the trigger is rotatably connected to the lower side of the lug.

[0020] Preferably, the cup body is provided with a handle, and the track groove is provided on the upper side of the handle of the cup body.

[0021] Preferably, the first direction is clockwise, the second direction is counterclockwise, the trigger is at least partially exposed on the left side of the lug in the first state, and the opening of the track groove is located on the right side of the upper side of the handle.

[0022] Preferably, the trigger has a protruding trigger pin on its front side and a pressing part on its rear side. In the first state, the pressing part is exposed on the left side of the lug.

[0023] Preferably, one side of the torsion spring is connected to the trigger, and the other side is connected to the lower side of the lug.

[0024] In a further improvement, the present invention also includes a body for placing the cup, the body being provided with a micro switch and the cup lid being provided with a trigger protrusion. When the cup lid is placed over the opening of the cup and the trigger is in the first state, the position of the trigger protrusion moves to the micro switch and triggers the micro switch.

[0025] Compared with the prior art, the advantages of the present invention are as follows: Since the track groove is provided with a first blocking part and a second blocking part, when the trigger is accidentally triggered from the first state, the trigger pin can be blocked by the second blocking part, and the cup lid still cannot be opened. The existence of the second blocking part and the second state of the trigger effectively avoids the possibility of the cup lid being opened due to the user accidentally touching the trigger. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the food processor in Embodiment 1 of the present invention.

[0027] Figure 2 This is a cross-sectional view of the food processor in Embodiment 1 of the present invention.

[0028] Figure 3 This is a schematic diagram of the cup lid switch structure in the first state (cup lid closed state) of Embodiment 1 of the present invention.

[0029] Figure 4 This is a schematic diagram of the cup lid switch structure with the trigger in the second state in Embodiment 1 of the present invention.

[0030] Figure 5 This is a schematic diagram of the cup lid switch structure in the third state of the trigger in Embodiment 1 of the present invention.

[0031] Figure 6 This is a schematic diagram of the cup lid switch structure in the open state of the food processor cup lid in Embodiment 1 of the present invention.

[0032] Figure 7 This is a schematic diagram of the track groove in Embodiment 2 of the present invention.

[0033] Figure 8 This is a diagram showing the positional relationship of the trigger pin in the track groove when the trigger is in the first state (cup lid closed state) in Embodiment 2 of the present invention.

[0034] Figure 9 This is a diagram showing the positional relationship of the trigger pin within the track groove when the trigger is in its second state, according to Embodiment 2 of the present invention.

[0035] Figure 10 This is a diagram showing the positional relationship of the trigger pin within the track groove in the third state of the trigger according to Embodiment 2 of the present invention.

[0036] Figure 11 This is a diagram showing the unlocking and locking paths of the trigger pin within the track groove in Embodiment 2 of the present invention. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] Example 1

[0039] like Figure 1 , 2 The food processor shown includes a body 1, a cup 2 mounted on the body, an opening at the top of the cup 2, a lid 3 that fits with the cup 2 and can be placed over the opening of the cup 2, and an opening structure between the cup 2 and the lid.

[0040] The opening structure includes:

[0041] A trigger 4 is connected to the cup lid 3. The middle part of the trigger 4 is rotatably connected to the cup lid 3. A protruding trigger pin 41 is provided or connected to the trigger 4.

[0042] A track groove 211 is provided on the cup body 2 and engages with the trigger pin of the trigger 4. The track groove 211 has an opening 211a. A first blocking part 212 and a second blocking part 213 are provided inside the track groove 211. The first blocking part 212 is provided on the first side wall inside the track groove 211, and the second blocking part 213 is provided on the second side wall inside the track groove that is opposite to the first side wall.

[0043] Torsion spring 5 acts on trigger 4 and has the force to drive the trigger to rotate in the first direction.

[0044] The trigger 4 has the following three states:

[0045] First state: The trigger pin 41 of the trigger 4 is pressed into the track groove 211 under the action of the torsion spring 5 and abuts against the first blocking part 212 in the track groove 211; in the first state, the cup lid is locked at the opening of the cup body, see Figure 3 As shown;

[0046] Second state: When an external force is applied to the trigger 4, causing it to overcome the force of the torsion spring 5 and rotate a certain angle in the second direction, the trigger pin 41 of the trigger 4 is pressed into the track groove 211 under the action of the torsion spring 5 and abuts against the second blocking part 213 in the track groove, wherein the second direction is the opposite direction to the first direction; in the second state, the cup lid is still locked at the opening of the cup body; see Figure 4 As shown;

[0047] Third state: The trigger pin 41 of the trigger 4 is freely located inside the track groove 211, neither abutting against the first blocking part 212 nor against the second blocking part 213; in the third state, as long as the cup lid 3 is rotated in the second direction, the trigger pin 41 of the trigger 4 can completely disengage from the track groove 211 through the opening 211a, and at this time the cup lid 3 can be moved away from the opening of the cup body 2. See Figure 5 As shown.

[0048] In this embodiment, the cup lid 3 has a lug 31 on its front side, and the trigger 4 is rotatably connected to the lower side of the lug 31. The cup body 2 has a handle 21 on its front side, and the track groove 211 is located on the upper side of the handle of the cup body 2. The trigger pin 41 is located below the front side of the trigger 4 and protrudes downward. The trigger 4 has a pressing part 42 on its rear side. In the first state, the pressing part 42 is exposed on the left side of the lug 31. The opening 211a of the track groove 211 is located on the right side of the upper side of the handle 21. One side of the torsion spring 5 is connected to the trigger 4, and the other side is connected to the lower side of the lug 31. The first direction is clockwise, and the second direction is counterclockwise. The second blocking part 213 has an angle with the second sidewall of the track groove 211, so that the second blocking part 213 forms an unlocking guide inclined surface 213a that is inclined towards the opening of the track groove. The first blocking part 212 is perpendicular to the first sidewall of the track groove, and the second blocking part 213 is closer to the opening 211a of the track groove 211 than the first blocking part 212. When the trigger 4 is in the second state and the trigger 4 is released without applying external force, the trigger pin 41 of the trigger 4 moves directly to the unlocking guide inclined surface 213a under the action of the torsion spring 5. At this time, the trigger pin 41 of the trigger 4 slides along the unlocking guide inclined surface 213a, and the trigger 4 rotates clockwise by a certain angle under the action of the torsion spring to reach the third state.

[0049] When the cup lid is closed, the trigger 4 is subjected to a clockwise force under the action of the torsion spring 5, and the trigger pin 41 is pressed against the lower part of the track groove. At this time, the trigger is in the first state, and the trigger pin 41 is blocked by the first blocking part 212 in the track groove, so the cup lid is locked and cannot be rotated to the right to open. When it is necessary to open the cup lid, press the pressing part 42 of the trigger 4, causing the trigger pin 41 of the trigger 4 to rotate counterclockwise to the left. The trigger pin 41 is released from the first blocking part 212 of the track groove. At this time, the cup lid can rotate counterclockwise to the left by a certain angle. When an external force is applied to the trigger 4 to drive the trigger 4 to overcome the force of the torsion spring 5 and rotate counterclockwise to the left by a certain angle, the trigger pin 41 of the trigger 4 is pressed into the track groove 211 under the action of the torsion spring 5 and abuts against the second blocking part 213 in the track groove. In the second state, the cup lid 3 is still locked at the opening of the cup body 2, and the cup lid 3 still cannot be opened. The existence of the second blocking part 213 and the second state of the trigger effectively avoids the possibility of the cup lid being opened due to the user accidentally touching the trigger. When trigger 4 is in the second state, releasing trigger 4 and no longer applying external force to it causes trigger pin 41 to move directly to unlocking guide inclined surface 213a under the action of torsion spring. At this time, trigger pin 41 slides along unlocking guide inclined surface 213a, and trigger 4 rotates clockwise by a certain angle under the action of torsion spring 5 to reach the third state. In the third state, simply rotating the cup lid 3 counterclockwise to the right allows trigger pin 41 to completely disengage from the opening 211a of track groove 211, at which point the cup lid 3 can be removed from the opening of cup body 2. (See [reference]). Figure 6 As shown.

[0050] Therefore, in this embodiment, to complete the process of opening a cup lid, the user needs to go through the following steps: pull down the pressing part 42 of the trigger 4 and rotate the cup lid 3 counterclockwise to the right (at this time, the trigger pin 41 of the trigger 4 reaches the second blocking part) - release the pressing part 42 of the trigger 4 (the trigger pin 41 of the trigger 4 slides along the unlocking guide inclined surface 213a, and then the trigger 4 reaches the third state) - without pulling down the pressing part 42 of the trigger 4, rotate the cup lid 3 counterclockwise to the right.

[0051] In this embodiment, the first sidewall inside the track groove 211 is provided with a locking guide inclined surface 211b that slopes from the opening toward the first blocking part 212. When it is necessary to lock the cup lid, after the cup lid 3 is placed on the opening of the cup body 2, the cup lid 3 is rotated clockwise to the right, so that the trigger pin 41 of the trigger 4 slides into the track groove from the opening 211a of the track groove 211. The trigger pin 41 of the trigger 4 slides along the locking guide inclined surface 211b on the first sidewall inside the track groove and is locked into the first blocking part 212, so that the trigger is in the first state. At this time, releasing the cup lid 3 no longer applies external force to the cup lid 3. Under the action of the torsion spring, the trigger pin 41 of the trigger 4 is pressed into the track groove and abuts against the first blocking part in the track groove, so that the cup lid is locked at the opening of the cup body.

[0052] In addition, in this embodiment, the body 1 is provided with a micro switch 11, and the cup lid 3 is provided with a trigger protrusion 32. When the cup lid 3 is placed over the opening of the cup body 2 and the trigger 4 is in the first state, the trigger protrusion 32 moves to the micro switch 11 and triggers the micro switch. When the trigger 4 is accidentally triggered, the cup lid 3 rotates a certain angle so that the trigger 4 reaches the second state, and the micro switch 11 on the body 1 is released. At this time, according to the signal of the micro switch being released, the drive motor 6 that drives the stirring blade assembly 22 in the cup body 2 to rotate is braked. Since the trigger pin 41 is blocked by the second blocking part 213 in the second state, the cup lid still cannot be opened, and the drive motor 6 is braked at this time, making it safer to use.

[0053] Example 2

[0054] Unlike Embodiment 1, the second blocking part 213 is a groove opened towards the opening of the track groove; a third blocking part 214 is provided inside the track groove 211. The third blocking part 214 is L-shaped and is located between the first sidewall and the second sidewall inside the track groove. The third blocking part 214 has an unlocking guide inclined surface 214a that is inclined towards the opening of the track groove. (See also...) Figure 7 As shown.

[0055] When trigger 4 is in the second state, releasing trigger 4 eliminates the application of external force to it. Then, rotating the cup lid 3 counterclockwise causes the trigger pin 41 of trigger 4 to move to the unlocking guide inclined surface 214a of the third blocking part 214 under the action of the cup lid 3. Then, releasing the cup lid 3 eliminates the application of external force to it. The trigger pin 41 of trigger 4 slides along the unlocking guide inclined surface 214a under the action of the torsion spring 5. When trigger 4 rotates clockwise by a certain angle under the action of the torsion spring, the third state is reached. (See also...) Figure 8 , 9 As shown.

[0056] Therefore, in this embodiment, to complete the process of opening a cup lid, the user needs to go through the following steps: pull the pressing part 42 of the trigger 4 and rotate the cup lid 3 counterclockwise to the right (the trigger pin 41 of the trigger 4 reaches the second blocking part) – release the pressing part 42 of the trigger – without pulling the pressing part 42 of the trigger, rotate the cup lid 3 clockwise to the left (the trigger pin 41 of the trigger 4 reaches the third blocking part) – without pulling the pressing part 42 of the trigger, rotate the cup lid counterclockwise to the right, see [link to previous steps]. Figure 8 , 9 As shown in Figure 10. The unlocking path of the trigger pin 41 of trigger 4 within the track groove is shown in Figure 10. Figure 11 As shown. The path of the trigger pin 41 of trigger 4 in the locking cup cover within the track groove is also shown in [reference needed]. Figure 11 As shown, its principle is the same as that of Example 1.

Claims

1. A cup cover switch structure of a food processor, comprising a cup body having an opening at the top, and a cup cover capable of being arranged at the opening of the cup body, characterized in that: a trigger is connected to the cup cover, the middle part of the trigger is rotationally connected to the cup cover, and a protruding trigger pin is arranged on or connected to the trigger; a track groove matched with the trigger pin of the trigger is arranged on the cup body, the track groove is provided with an opening, and a first blocking part and a second blocking part are arranged inside the track groove, the first blocking part is arranged on a first side wall inside the track groove, and the second blocking part is arranged on a second side wall opposite to the first side wall inside the track groove; a torsion spring is arranged on the trigger and has an acting force for driving the trigger to rotate in a first direction; the trigger has the following three states: a first state: the trigger pin of the trigger is pressed in the track groove and abuts against the first blocking part inside the track groove under the action of the torsion spring; in the first state, the cup cover is locked at the opening of the cup body; a second state: when an external force is applied on the trigger to drive the trigger to rotate in a second direction against the action of the torsion spring by a certain angle, the trigger pin of the trigger is pressed in the track groove and abuts against the second blocking part inside the track groove under the action of the torsion spring, wherein the second direction is opposite to the first direction; in the second state, the cup cover is still locked at the opening of the cup body; and a third state: the trigger pin of the trigger is freely located inside the track groove without abutting against the first blocking part or the second blocking part; in the third state, as long as the cup cover is rotated in the second direction, the trigger pin of the trigger can completely separate from the track groove through the opening of the track groove, and at this time, the cup cover can be moved away from the opening of the cup body; the second blocking part is provided with an unlocking guide inclined surface which is arranged in a direction inclined to the opening direction of the track groove; when the trigger is in the second state and the external force is no longer applied on the trigger, the trigger pin of the trigger directly moves to the unlocking guide inclined surface under the action of the torsion spring, at this time, the trigger pin of the trigger slides along the unlocking guide inclined surface, and the trigger rotates in the first direction by a certain angle under the action of the torsion spring to reach the third state; the first blocking part is arranged perpendicularly to the first side wall of the track groove. The second blocking part and the second side wall of the track groove have an included angle, so that the second blocking part is formed with the unlocking guide inclined surface arranged in a direction inclined to the opening direction of the track groove. The track groove is provided with a third blocking part between the first side wall and the second side wall inside the track groove, and the third blocking part is provided with an unlocking guide inclined surface arranged in a direction inclined to the opening direction of the track groove; when the trigger is in the second state and the external force is no longer applied on the trigger, the cup cover is rotated in the second direction, the trigger pin of the trigger moves to the unlocking guide inclined surface of the third blocking part under the driving of the cup cover, and then the external force is no longer applied on the cup cover, the trigger pin of the trigger slides along the unlocking guide inclined surface under the action of the torsion spring, and when the trigger rotates in the first direction by a certain angle under the action of the torsion spring, the third state is reached. The second blocking part is a groove opened in the direction of the opening of the track groove; and the third blocking part is in an L shape. ​ ​ ​ ​ ​ ​ 2. The cup cover switch structure of the food processor according to claim 1, wherein: ​ 3. The cup cover switch structure of the food processor according to claim 1, wherein: ​ 4. The cup cover switch structure of the food processor according to claim 3, wherein: ​ 5. The cup cover switch structure of the food processor according to claim 1 or 2 or 3 or 4, characterized in that: The first side wall inside the track slot is provided with a locking guide inclined surface inclined from the opening to the first blocking part. After the cup cover is arranged at the opening of the cup body, the cup cover is rotated in the first direction, so that the trigger pin of the trigger slides into the track slot from the opening of the track slot, the trigger pin of the trigger slides along the locking guide inclined surface on the first side wall inside the track slot, and is clamped into the first blocking part, so that the trigger is in the first state. At this time, the cup cover is no longer subjected to external force, the trigger pin of the trigger is pressed in the track slot under the action of the torsional spring and abuts against the first blocking part in the track slot, and the cup cover is locked at the opening of the cup body.

6. The cup cover switch structure of the food processor according to claim 1, wherein: The second blocking part is closer to the opening of the track slot than the first blocking part.

7. The cup cover switch structure of the food processor according to claim 1, wherein: The cup cover is provided with a lug, and the trigger is rotationally connected to the lower side of the lug.

8. The cup cover switch structure of the food processor according to claim 7, wherein: The cup body is provided with a handle, and the track slot is arranged on the upper side of the handle of the cup body.

9. The cup cover switch structure of the food processor according to claim 8, wherein: The first direction is the clockwise direction, the second direction is the counterclockwise direction, the trigger is at least partially exposed to the left side of the lug in the first state, and the opening of the track slot is arranged on the right side of the upper side of the handle.

10. The cup cover switch structure of the food processor according to claim 9, wherein: The front side of the trigger is provided with the protruding trigger pin, and the rear side of the trigger is provided with a pressing part. In the first state, the pressing part is exposed to the left side of the lug.

11. The cup cover switch structure of the food processor according to claim 1, wherein: One side of the torsional spring is connected with the trigger, and the other side is connected with the lower side of the lug.

12. The cup cover switch structure of the food processor according to claim 1, wherein: Further comprising a machine body for placing the cup body, the machine body is provided with a micro switch, the cup cover is provided with a trigger protrusion, when the cup cover is arranged at the opening of the cup body and the trigger is in the first state, the position of the trigger protrusion is moved to the micro switch and triggers the micro switch.

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