Cup cover self-locking linkage mechanism

Abstract

The utility model discloses a cup cover self-locking linkage mechanism, and mainly relates to the technical field of safe buckling of small electric appliances. Comprising a cup body and a cup cover, the edge of the cup cover is provided with a protruding block extending downwards, the bottom side of the protruding block is provided with a horizontal matching end face, one end of the matching end face is provided with a buckling position clamping groove, one side of the cup body is provided with a connecting rod in vertical sliding fit with the cup body, and the top end of the connecting rod is provided with a plug movably clamped with the buckling position clamping groove; a main machine detachably connected with the cup body is arranged below the cup body, a microswitch is arranged in the main machine, and when the top end of the plug makes contact with the matched end face, the ejector rod triggers the microswitch. When the plug is inserted into the buckling position clamping groove, the ejector rod is separated relative to the microswitch. The utility model has the beneficial effects that the single connecting rod is adopted to realize linkage on the opening and closing of the cup cover and the control of the power supply, the assembly is simple, the cost is saved, the cover can be opened only when the cup body is taken off from the main machine, the requirement that the cover can be opened only when the stirring knife is completely stopped is effectively met, and the safety requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of small electrical appliance safety buckling, in particular to a cup cover self-locking linkage mechanism. Background Art

[0002] Small household appliances such as grinders and food processors are used to grind food materials using a high-speed rotating blade at the bottom of the container. This operation poses certain safety risks and requires necessary protective measures during the blade rotation process. Among existing related products, the more reasonable design is to automatically stop the machine when the cup lid is unscrewed. This effect is often achieved through a dual-link structure on the same side: one link controls the power supply, and the other prevents the lid from retracting. This requires the user to remove the grinding cup from the main unit to open the cup lid. This structure is complex, has high processing and production costs, and carries the risk of failure. Utility Model Content

[0003] The purpose of the utility model is to provide a cup cover self-locking linkage mechanism, which adopts a single connecting rod to realize linkage between the opening and closing of the cup cover and the control of the power supply, has simple assembly and saves costs.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0005] A cup lid self-locking linkage mechanism comprises a cup body, wherein the cup body is provided with a cup lid which cooperates with the cup body and can rotate therewith at the top, a downwardly extending protrusion is provided at the edge of the cup lid, the bottom side of the protrusion is provided with a horizontal mating end face, one end of the mating end face is provided with a buckle slot, one side of the cup body is provided with a connecting rod which slides up and down with the cup body, the top end of the connecting rod is provided with a plug which is movably engaged with the buckle slot, the bottom end of the connecting rod is provided with a push rod, a main unit detachably connected to the cup body is provided below the cup body, a micro switch is provided in the main unit at the corresponding connecting rod position, when the top end of the plug contacts the mating end face, the push rod triggers the micro switch; when the plug is inserted into the buckle slot, the push rod disengages from the micro switch.

[0006] The top side of the cup body is provided with a cup mouth that matches the cup cover, and two ear plates that protrude horizontally outward are symmetrically provided on the cup mouth. The side of the cup cover is provided with two buckle plates that are symmetrical with respect to the protrusion. The outer side of the buckle plate is provided with an arc-shaped groove that is movably engaged with the ear plate. The ear plate can be engaged with the arc-shaped groove based on the rotation of the cup cover, and the ear plate will be disengaged from the arc-shaped groove only when the protrusion is completely offset from the connecting rod.

[0007] A motor and a rotating shaft driven by the motor are installed in the main unit. The micro switch is connected to the motor circuit and is used to start and close the motor operation. A rotating cutter head is rotatably installed on the bottom of the cup body. Based on the installation of the cup body and the main unit, the rotating cutter head and the rotating shaft are limited in circumferential direction.

[0008] The cup body comprises an inner liner and an outer shell which are nested and fixed inside and outside. The bottom of the outer shell is provided with a cup seat which is fixedly connected thereto. The bottom side of the cup seat is detachably connected to the main unit.

[0009] A sliding groove is fixed on the top side of the cup holder corresponding to the connecting rod position, and the bottom end of the connecting rod is provided with a sliding frame located in the sliding groove and slidingly cooperating with the sliding groove. The bottom side frame edge of the sliding frame is provided with a sliding rod fixed in the center and extending vertically upward. A sliding sleeve is fixed on the bottom side edge of the shell and is slidably cooperating with the sliding rod, and a coil spring is sleeved on the sliding rod.

[0010] A connecting shaft is rotatably installed in the cup seat, the top end of the connecting shaft is installed with the rotating cutter head, and the bottom end of the connecting shaft is provided with a shaft seat, which is movably plugged with the rotating shaft and circumferentially limited.

[0011] The micro switch is provided with a trigger rod at its top, and a clearance hole for exposing the trigger rod is provided on the top of the host corresponding to the position of the micro switch, and the bottom end of the top rod corresponds to the position of the clearance hole.

[0012] A positioning plate is provided on the top of the protrusion and extends horizontally outward along the cup cover. The positioning plate is aligned with the center of the protrusion. A handle is provided on the outer wall of the cup body. The handle is a hollow structure. The connecting rod is arranged in the handle. A notch is provided on one side of the top of the handle. The plug is exposed within the notch. When the plug contacts the mating end face, the positioning plate and the handle are flush up and down.

[0013] The inner wall of the buckle slot is an inclined wedge-shaped slot wall, and the side of the protrusion close to the buckle slot is a guiding slope inclined in the same direction as the wedge-shaped slot wall. The plug is based on its wedge shape corresponding to the buckle slot.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The self-locking structure of this cup lid has been improved to use a single connecting rod structure. The top of the connecting rod cooperates with the cup lid. When the cup lid is buckled on the cup body and rotated, when the top of the connecting rod plug contacts the matching end face, it can start to trigger the micro switch to turn on the power. When a slight rotation causes the plug to enter the buckle slot, the power is automatically cut off and the cup lid is stopped at the same time, realizing the linkage effect between the opening and closing of the cup lid and the power supply. The assembly structure is greatly simplified, the sensitivity is improved, and the cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the utility model in a working state (the plug is in contact with the mating end face).

[0017] Figure 2 This utility model Figure 1 Enlarged view of the upper part.

[0018] Figure 3 It is a schematic diagram of the utility model in the shutdown state (the plug is matched with the buckle slot).

[0019] Figure 4 This utility model Figure 3 Enlarged view of the upper part.

[0020] Figure 5 It is a schematic diagram of the connection structure of the cup body and the connecting rod of the utility model.

[0021] Figure 6 It is an assembly diagram of the main unit, cup holder and micro switch of the utility model.

[0022] Figure 7 It is a schematic diagram of a cup cover of the present invention.

[0023] Figure 8 It is a schematic diagram of the connecting rod and micro switch of the utility model.

[0024] Figure 9 It is a schematic diagram of the outer shell and the inner liner of the utility model.

[0025] Figure 10 It is a schematic diagram of the connection between the bottom of the shell and the sliding frame of the utility model.

[0026] Reference numerals shown in the accompanying drawings:

[0027] 1. Main unit; 2. Micro switch; 3. Trigger rod; 4. Cup cover; 5. Bump; 6. Positioning plate; 7. Mating end face; 8. Buckle slot; 9. Guide slope; 10. Ear plate; 11. Housing; 12. Cup holder; 13. Connecting rod; 14. Mounting plate; 15. Annular groove; 16. Slide groove; 17. Sliding frame; 18. Slide rod; 19. Slide sleeve; 20. Push rod; 21. Plug; 22. Inner liner; 23. Buckle plate; 24. Arc slot; 25. Handle; 26. Notch; 27. Straight rod; 28. Folding rod; 29. ​​Auxiliary frame. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined in this application.

[0029] Example:

[0030] This example is a self-locking linkage mechanism of a cup cover 4, and the main structure includes: a cup cover 4, a cup body, and a main unit 1 which can be disassembled and matched in sequence from top to bottom.

[0031] The host 1 is used to install rotating mechanisms such as a motor, a rotating shaft, and a fan, which are used to realize the operation of crushing the food. The motor is used to drive the rotating shaft to rotate. And by cooperating with the cup body, the food in the cup body is crushed. A micro switch 2 is installed inside the host 1. The micro switch 2 is used to be linked with the motor. The micro switch 2 is provided with a trigger rod 3 at the top. The trigger rod 3 is used to respond quickly to external mechanical force, thereby realizing the connection or disconnection of the contacts and realizing the switching control of the motor operation or shutdown. A clearance hole for exposing the trigger rod 3 is provided at the top of the host 1 corresponding to the position of the micro switch 2. The top of the trigger rod 3 is set lower than the clearance hole.

[0032] The top side of the cup body is provided with a cup mouth that cooperates with the cup cover 4. The cup body includes an outer shell 11 in the shape of a cup. An inner liner 22 made of edible grade stainless steel is nested and fixed in the outer shell 11 to provide space for accommodating and operating food. There is a gap between the outer shell 11 and the inner liner 22 to provide an installation position for the connecting rod 13.

[0033] The bottom of the shell 11 is provided with a cup holder 12 fixedly connected thereto. The cup holder 12 is an annular supporting structure, and its top side is fixedly connected to the bottom side of the shell 11. The bottom side of the cup holder 12 is detachably connected to the main unit 1. A connecting shaft is rotatably installed in the cup holder 12, and a rotating cutter head located at the bottom of the inner tank 22 is installed at the top of the connecting shaft. The bottom end of the connecting shaft is provided with a shaft seat. When the cup holder 12 is connected to the main unit 1, the top end of the rotating shaft in the main unit 1 is inserted into the shaft seat and limited circumferentially, thereby driving the rotation of the rotating cutter head to crush food.

[0034] A connecting rod 13 is provided in the gap between the outer shell 11 and the inner container 22 and is slidably matched with the outer shell 11 up and down.

[0035] A mounting plate 14 is provided on the top of the cup holder 12. An annular groove 15 is provided on the side of the mounting plate 14 for fixedly engaging with the bottom side of the shell 11. A vertically arranged slide groove 16 is provided on the mounting plate 14 corresponding to the position of the connecting rod 13. A sliding frame 17 is provided at the bottom end of the connecting rod 13 and fixedly connected with the connecting rod 13 and integrally formed therewith. The sliding frame 17 is a vertically extending rectangular frame structure. The sliding frame 17 is located in the slide groove 16 and slides up and down with the slide groove 16. The sliding frame 17 guides the connecting rod 13 to slide up and down stably.

[0036] The bottom side edge of the sliding frame 17 is provided with a centrally fixed sliding rod 18 extending vertically upward. The sliding rod 18 is a cylindrical rod. The bottom side edge of the housing 11 is fixed with a sliding sleeve 19 that is penetrated by the sliding rod 18 and slidably engaged. The sliding rod 18 is sleeved with a coil spring located between the bottom side edge of the sliding frame 17 and the sliding sleeve 19. Through interaction with the spring inside the micro switch 2 below, the following effects are achieved:

[0037] When the cup body is placed on the main unit 1, the downward elastic force of the coil spring on the connecting rod 13 is insufficient to overcome the built-in spring of the micro switch 2 and complete the triggering action. Only by pressing the plug 21 downward by the mating end surface 7 can the connecting rod 13 move downward and trigger the micro switch 2. At the same time, when the mating end surface 7 and the plug 21 are staggered, the coil spring cooperates with the spring inside the micro switch 2 to make the connecting rod 13 have an upward tendency, so that when the cup cover 4 is rotated to the corresponding position, the plug 21 can automatically insert into the buckle slot 8.

[0038] When the cup body is removed from the main unit 1 , the upward elastic force of the built-in spring of the micro switch 2 is released, and the coil spring causes the connecting rod 13 to have a downward trend.

[0039] A push rod 20 is fixed to the bottom surface of the sliding frame 17, and the push rod 20 passes through the base downward. The push rod 20 is coaxially arranged with the trigger rod 3. Based on the lifting and lowering of the connecting rod 13, contact with the trigger rod 3 can be achieved, thereby triggering the micro switch 2 and the linkage control motor.

[0040] A downwardly extending protrusion 5 is provided at the edge of the cup cover 4, and a positioning plate 6 is provided on the top of the protrusion 5 and extends horizontally outward along the cup cover 4. The position of the positioning plate 6 is equivalent to the position of the protrusion 5, so the position of the protrusion 5 can be smoothly observed through the positioning plate 6, which helps to quickly locate it.

[0041] A horizontally extending mating end face 7 is provided on the bottom side of the protrusion 5. The mating end face 7 is a horizontally extending end face, and a buckle slot 8 is provided at one end thereof. The buckle slot 8 extends upward to form an upward depression on the mating end face 7 (the bottom side of the protrusion 5). The inner wall of the buckle slot 8 is an inclined wedge-shaped slot wall, and the side of the protrusion 5 close to the buckle slot 8 is a guide slope 9 inclined in the same direction as the wedge-shaped slot wall.

[0042] The top end of the connecting rod 13 is provided with a wedge-shaped plug 21 corresponding to the shape of the buckle slot 8. Based on its wedge shape corresponding to the buckle slot 8, the plug 21 can smoothly push the connecting rod 13 to slide downward through the contact and cooperation between the guide slope 9 and the plug 21 during the rotation of the cup cover 4. The contact between the wedge-shaped groove wall and the plug 21 can also smoothly push the connecting rod 13 to move downward. Therefore, by rotating the cup cover 4 to a specific position, the connecting rod 13 can be pushed to slide downward.

[0043] The shell 11 is symmetrically provided with two outward-protruding ear plates 10 at the cup mouth, and a matching sealing gasket is provided on the bottom surface of the cup cover 4 corresponding to the cup mouth. The side of the cup cover 4 is symmetrically provided with two outward-extending protruding buckle plates 23, and the outer side of the buckle plate 23 is provided with an arc-shaped card groove 24 that is movably engaged with the ear plate 10. When the cup cover 4 covers the cup mouth and rotates, the ear plate 10 can be stuck in the arc-shaped card groove 24, thereby having a certain locking effect on the cup cover 4 and the cup mouth.

[0044] The protrusion 5 is located in the center between the two buckle plates 23 , and the connecting rod 13 is located between the two ear plates 10 . The ear plates 10 are separated from the arc-shaped slots 24 only when the protrusion 5 and the connecting rod 13 are completely offset.

[0045] Therefore, when the plug 21 is inserted into the buckle slot 8, the cup cover cannot rotate, and the ear plate 10 is still in the arc-shaped slot 24 and cannot be separated, which plays a protective role. If the cup cover is to be unscrewed, the grinding cup assembly must be removed from the main body, and the cup cover can be rotated again. The ears on both sides of the cup cover are separated from the ears on both sides of the shell, and the cup cover is opened.

[0046] A handle 25 is also integrally formed on the shell 11. The handle 25 is a hollow structure, so the structure of the handle 25 creates a large gap between it and the inner liner 22 at this position. For the sake of aesthetics and convenient space layout, the connecting rod 13 is set at the position of the handle 25. The handle 25 is located between the two ear plates 10, and a notch 26 is provided on one side of the top of the handle 25. The notch 26 is used to expose the plug 21. When the cup cover 4 is fitted on the cup mouth, the notch 26 is set to the position of the protrusion 5. By rotating the cup cover 4, the protrusion 5 can be inserted into the notch 26 to achieve fit with the plug 21.

[0047] To facilitate layout, in the specific design, the connecting rod 13 includes a straight rod portion 27 and a folding rod portion 28 that are integrally formed from top to bottom. The straight rod portion 27 extends vertically and is provided with a notch 26 on one side close to the handle 25, so that the plug 21 can be close to the notch 26 for easy exposure and matching. The sliding frame 17 and the slide groove 16 are centered relative to the handle 25, so the bottom end of the folding rod portion 28 is connected to the top side of the sliding frame 17, and the top end of the folding rod portion 28 is connected to the bottom end of the straight rod portion 27, and docking at different upper and lower positions is achieved through bending and deformation.

[0048] An auxiliary frame is provided on the upper part of the handle 25. The auxiliary frame is an L-shaped support frame. One end of the auxiliary frame is fixed on the shell. The auxiliary frame is provided with a through hole for the straight rod part 27 to pass through and slide up and down, which assists the stability of the up and down sliding stroke of the straight rod part 27 at the upper part.

[0049] In addition, the notch 26 is only provided on one side of the handle 25, so that the protrusion 5 can be blocked to prevent excessive rotation of the cup cover 4. When the top end of the plug 21 contacts the mating end surface 7, the positioning plate 6 and the handle 25 are centered and aligned, so that the working position can be quickly found through visual alignment.

[0050] (1) Figure 1 、 2 As shown, when the top side of the plug 21 at the top of the connecting rod 13 contacts the mating end surface 7 on the bottom side of the protrusion 5, it is in the working state. At this time, the mating end surface 7 presses the connecting rod 13 downward, causing the top rod 20 to insert downward into the clearance hole and contact with the trigger rod 3, triggering the micro switch 2, starting the motor to rotate, and the product is crushed.

[0051] Description: Buckle the cup cover 4 on the cup mouth. Initially, the lock plate of the cup cover 4 is staggered with the ear plate 10. Then rotate the cup cover 4 to make the protrusion 5 swing to the right, and the protrusion 5 enters the notch 26. When the top of the plug 21 hits the mating end face 7, the ear plate 10 is located in the arc-shaped slot 24 (the ear plate 10 and the buckle plate 23 are flush up and down), and the positioning plate 6 is located in the center above the handle 25. The working position can be quickly found through visualization and the machine can be started.

[0052] (2) Figure 3 、 4 As shown, when the plug 21 at the top end of the connecting rod 13 is inserted into the buckle slot 8, it is in the power-off state.

[0053] Note: When the cup cover 4 is rotated, the protrusion 5 is Figure 2 In this state, it swings to the left until the plug 21 is in the position corresponding to the buckle slot 8, and the connecting rod 13 moves upward under the action of the coil spring, and the plug 21 is inserted into the buckle slot 8. The top rod 20 disengages the trigger rod 3, the micro switch 2 is disconnected, and the motor stops working. At this time, based on the locking of the buckle slot 8 and the connecting rod 13, the cup cover 4 and the cup body cannot rotate circumferentially, and at this time, the ear plates 10 on both sides of the cup cover 4 are still in the arc-shaped slots 24, and the cup cover 4 cannot be opened upward, so that the cup cover 4 is rotated to stop, but the cup cover 4 is kept locked.

[0054] (3) Figure 9 As shown, when the position of the protrusion 5 is completely misaligned with the position of the connecting rod 13, it is in the power-off state.

[0055] Note: After the cup body is removed from the main unit 1, the connecting rod 13 moves downward under the action of the coil spring, and the connecting rod 13 disengages from the buckle slot 8 of the cup cover 4. The cup cover 4 is rotated, and the buckle plates 23 on both sides of the cup cover 4 disengage from the ear plates 10, and the cup cover 4 can be opened.

[0056] Through the above structure, a single connecting rod 13 control mechanism can be realized. Through a connecting rod 13, the rotation of the cup cover 4 and the operation of the motor are linked, and the locking of the cup cover 4 is constrained, thereby realizing the linkage of multiple functions. The structure is simple, easy to assemble, and cost-saving.

[0057] During specific use, by rotating the cup cover 4, when it reaches the working position, that is, when the positioning plate 6 is aligned with the handle 25 and the ear plate 10 is aligned with the lock plate, the work is automatically started, and when the cup cover 4 is rotated, the work can be stopped and the cup cover 4 is automatically locked through the flavor card slot to ensure safety. The cup cover 4 can only be opened when the cup body is removed from the main unit 1.

Claims

1. A cup cover self-locking linkage mechanism, comprising a cup body, wherein the cup body is provided with a rotatable cup cover on the top thereof, characterized in that: A downward extending protrusion is provided at the edge of the cup cover, and a horizontal mating end face is provided on the bottom side of the protrusion, and a buckle slot is provided at one end of the mating end face. A connecting rod that slides up and down with the cup body is provided on one side of the cup body, and a plug that is movably engaged with the buckle slot is provided on the top of the connecting rod, and a push rod is provided at the bottom end of the connecting rod. A main unit detachably connected to the main unit is provided below the cup body, and a micro switch is provided at the corresponding connecting rod position in the main unit. When the top of the plug contacts the mating end face, the push rod triggers the micro switch; when the plug is inserted into the buckle slot, the push rod disengages from the micro switch.

2. A cup cover self-locking linkage mechanism according to claim 1, characterized in that: The top side of the cup body is provided with a cup mouth that matches the cup cover, and two ear plates that protrude horizontally outward are symmetrically provided on the cup mouth. The side of the cup cover is provided with two buckle plates that are symmetrical with respect to the protrusion. The outer side of the buckle plate is provided with an arc-shaped groove that is movably engaged with the ear plate. The ear plate can be engaged with the arc-shaped groove based on the rotation of the cup cover, and the ear plate will be disengaged from the arc-shaped groove only when the protrusion is completely offset from the connecting rod.

3. The cup cover self-locking linkage mechanism according to claim 1, characterized in that: The cup body comprises an inner liner and an outer shell which are nested and fixed inside and outside. The bottom of the outer shell is provided with a cup seat which is fixedly connected thereto. The bottom side of the cup seat is detachably connected to the main unit.

4. A cup cover self-locking linkage mechanism according to claim 3, characterized in that: A sliding groove is fixed on the top side of the cup holder corresponding to the connecting rod position, and the bottom end of the connecting rod is provided with a sliding frame located in the sliding groove and slidingly cooperating with the sliding groove. The bottom side frame edge of the sliding frame is provided with a sliding rod fixed in the center and extending vertically upward. A sliding sleeve is fixed on the bottom side edge of the shell and is slidably cooperating with the sliding rod, and a coil spring is sleeved on the sliding rod.

5. The cup cover self-locking linkage mechanism according to claim 3, characterized in that: A connecting shaft is rotatably installed in the cup seat, the top end of the connecting shaft is installed with the rotating cutter head, and the bottom end of the connecting shaft is provided with a shaft seat, which is movably plugged with the rotating shaft and circumferentially limited.

6. The cup cover self-locking linkage mechanism according to claim 1, characterized in that: The micro switch is provided with a trigger rod at its top, and a clearance hole for exposing the trigger rod is provided on the top of the host corresponding to the position of the micro switch, and the bottom end of the top rod corresponds to the position of the clearance hole.

7. The cup cover self-locking linkage mechanism according to claim 1, characterized in that: A positioning plate is provided on the top of the protrusion and extends horizontally outward along the cup cover. The positioning plate is aligned with the center of the protrusion. A handle is provided on the outer wall of the cup body. The handle is a hollow structure. The connecting rod is arranged in the handle. A notch is provided on one side of the top of the handle. The plug is exposed within the notch. When the plug contacts the mating end face, the positioning plate and the handle are flush up and down.

8. The cup cover self-locking linkage mechanism according to claim 1, characterized in that: The inner wall of the buckle slot is an inclined wedge-shaped slot wall, and the side of the protrusion close to the buckle slot is a guiding slope inclined in the same direction as the wedge-shaped slot wall. The plug is based on its wedge shape corresponding to the buckle slot.

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