Electric mixer

Abstract

An electric mixer comprises a machine body consisting of a machine body (204) and a machine base (207), a mixing cup (104) with a metal cup body that can be separated from the machine body, a cup cover (103) that is snapped onto the mixing cup (104), and a safety locking device arranged on the machine body. A trigger mechanism for triggering a switch (209) and an additional trigger (102) are arranged on the cup cover (103). The safety locking device comprises a pressure rod (101) and an actuator (109). When the cup cover (103) is buckled into place on the stirring cup (104), the switch (209) is triggered so that the actuator (109) actuates the pressure rod (101) to press the cup cover (103) and the stirring cup (104) onto the machine body, and the trigger (102) on the cup cover (103) is triggered by the pressure rod (101). Only when both the switch (209) and the trigger (102) are triggered can the electric stirrer be powered on and operated.

Description

Technical Field

[0001] The invention relates to kitchen appliances, in particular to an electric mixer with a safety locking device. Background Art

[0002] A common blender is a kitchen appliance driven by a motor, which is usually used to blend food materials such as flour. Such a blender usually has a blending function, and the components of the blender mainly include: a body with a rotational drive function; a blending cup placed on the body; and a blending element installed in the blending cup and driven by the body to rotate. The blender may also have a heater arranged in the bottom area of ​​the blending cup to heat the food materials in the blending cup.

[0003] The blender usually controls the power supply by snapping the cup lid on the cup body of the blender cup to trigger the switch. When the cup lid is snapped into place, the trigger mechanism reaches the set trigger position, thereby triggering the switch to power on the machine, and then the motor drives the stirring element to rotate to stir the food and the heater to heat the food. During the use of the blender, as the stirring element rotates to stir the food and the heater heats the food, the food may tumble up and down and continuously impact the cup lid and the cup body. This may cause the cup lid to shift, and the trigger mechanism may easily deviate from the set trigger position, causing the trigger switch to disconnect, causing the blender to abnormally power off and stop working. In addition, accidentally turning the cup lid and / or moving the cup body during the operation of the electric blender will also cause the electric blender to stop working.

[0004] CN 105565301A discloses an electric food processor. The electric food processor comprises a pot body, a handle, a pot body cover, a machine body provided with a micro switch, a first rod, a base fixed to the bottom of the pot body, a second rod and a third rod. When the base is mounted on the machine body and the handle is fixed to the pot body, the block on the pot body cover enters the slot on the handle by rotation, thereby locking the pot body cover on the pot body, the pot body cover can press the upper end of the first rod downward to move the first rod downward, and the lower end of the first rod can push the second rod outward from the base when moving downward, so that one end of the second rod protrudes from the base and pushes one end of the third rod, and the other end of the third rod moves in the opposite direction at the same time, thereby pressing the micro switch to turn it on.

[0005] CN 204950670U discloses a multifunctional wall-breaking machine, which includes a stirring cup, a handle is provided on the side wall of the stirring cup, a cup cover and a cup bottom are provided on the top and bottom of the stirring cup respectively, a rotating knife holder, a stirring motor for driving the rotating knife holder to rotate, and a metal knife holder seat for supporting the rotating knife holder are provided on the cup bottom, and a control circuit is also provided, a heating device capable of transferring heat to the metal knife holder seat is provided under the metal knife holder seat; an anti-overflow device is provided on the cup cover, and the anti-overflow device is electrically connected to the control circuit through an electric connection device; a safety locking device capable of judging whether the cup cover and the stirring cup are locked and controlling whether the control circuit can be connected is provided between the cup cover and the handle. Among them, the safety locking device is a first magnetic control sensor provided in the upper part of the handle and a second magnetic control sensor provided on the cup cover and vertically corresponding to the first magnetic control sensor up and down after the cup cover is locked.

[0006] The above-mentioned existing technical solutions cannot prevent the machine from stopping working due to food churning and impacting the cup cover and cup body and / or accidentally rotating the cup cover and / or moving the cup body during the operation of the machine, which brings inconvenience in use; in addition, the existing technical solutions usually use a single trigger mechanism to control the switch. As long as the trigger mechanism of a single trigger point is triggered, the machine can be powered on, and safety cannot be guaranteed.

[0007] Therefore, it is desirable to provide a blender that can overcome the above-mentioned disadvantages. Summary of the invention

[0008] In order to solve the deficiencies of the mixer in the prior art, the present invention provides an electric mixer with a safety locking device.

[0009] The technical solution adopted by the present invention to solve the technical problem is to provide an electric mixer, which includes: a body composed of a body and a base, in which a main motor and a switch are arranged; a mixing cup with a metal cup body that can be separated from the body, in which a mixing element is arranged, and a channel is defined by the side of the mixing cup and a handle fixed thereon; a cup cover buckled on the mixing cup, on which a trigger mechanism for triggering the switch and an additional trigger are arranged; a rod linkage device, which includes an upper connecting rod located in the channel between the side of the mixing cup and the handle; wherein the electric mixer also includes a safety locking device arranged on the body, which includes a pressure rod and an actuator for moving the pressure rod up and down, when the cup cover is buckled in place on the mixing cup, the trigger mechanism causes the rod linkage device to link the trigger switch through the upper connecting rod, so that the actuator activates the pressure rod to press the cup cover and the mixing cup onto the body, and the additional trigger on the cup cover is triggered by the pressure rod, and the electric mixer can be powered on and operated only after both the switch and the additional trigger are triggered.

[0010] According to a preferred embodiment of the present invention, the safety locking device includes two left and right inverted L-shaped pressure rods, and the two pressure rods are synchronously actuated by an actuator.

[0011] According to a preferred embodiment of the present invention, a horizontal section of at least one of the two pressure rods is configured to trigger a trigger.

[0012] According to a preferred embodiment of the present invention, when the safety locking device presses the cup cover, the horizontal sections of the two pressure rods are arranged opposite to each other in a straight line with respect to the center of the cup cover.

[0013] According to a preferred embodiment of the present invention, the body of the blending cup is made of stainless steel.

[0014] According to a preferred embodiment of the present invention, a body cover is provided on the body, and the body cover is provided with a recess for placing the blending cup and a screen for controlling the electric blender.

[0015] According to a preferred embodiment of the present invention, a sealing ring is sandwiched between the stirring cup and the cup cover.

[0016] According to a preferred embodiment of the present invention, the electric mixer is further provided with a transmission mechanism, and the rotation of the main motor is transmitted to the stirring element in the stirring cup through the transmission mechanism.

[0017] According to a preferred embodiment of the present invention, a heating device is provided at the bottom of the blending cup, and the bottom of the blending cup can be heated by supplying power to the heating device after both the switch and the additional trigger are triggered.

[0018] According to a preferred embodiment of the present invention, the heating device comprises a heat-generating film for heating.

[0019] Compared with the existing technical solutions, the electric mixer of the present invention has the following beneficial effects: on the one hand, by adopting a safety locking device, the cup cover and the mixing cup are locked on the body of the electric mixer when it is running, so as to prevent the electric mixer from stopping working due to the impact of food churning and hitting the cup cover and the cup body and / or accidental movement of the cup cover and / or the cup body during the operation of the electric mixer; on the other hand, a multiple trigger mechanism is adopted to control the trigger mechanisms of multiple (at least two) trigger points, and the electric mixer can be powered on and operated only after the trigger mechanisms of all trigger points are triggered, which greatly improves the safety factor of the electric mixer.

[0020] In the following description of the drawings and specific embodiments, the details of one or more embodiments of the present invention will be described. Other features, objects and advantages of the present invention can be clearly seen from these descriptions, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described in more detail by way of example with reference to the accompanying drawings, which are not drawn to scale, in which:

[0022] Figure 1is a three-dimensional schematic diagram of the electric mixer according to the present invention, wherein the cup cover and the cup body are locked by the safety locking device;

[0023] Figure 2 Another perspective schematic diagram of the electric mixer according to the present invention, wherein the cup cover and the cup body are in a released state;

[0024] Figure 3 It is an exploded perspective schematic diagram of the electric mixer according to the present invention.

[0025] Parts List

[0026] 101 Pressure rod

[0027] 102 Trigger

[0028] 103 Cup lid

[0029] 104 Mixing cup

[0030] 105 Handle

[0031] 106 Handle cover

[0032] 107 Upper connecting rod

[0033] 108 Lower link

[0034] 109 Actuator

[0035] 201 Body Cap

[0036] 202 switch link

[0037] 203 Switch connecting rod fixing bracket

[0038] 204 Body

[0039] 205 Circuit Board

[0040] 206 Main Motor

[0041] 207 Base

[0042] 208 Rubber Feet

[0043] 209 Switch

[0044] 3 screens. DETAILED DESCRIPTION

[0045] The present invention will be described in more detail below in conjunction with specific embodiments. It should be understood by those skilled in the art that these descriptions merely list some specific embodiments of the present invention and do not limit the present invention and its protection scope in any way.

[0046] Additionally, spatially relative terms, such as "lower," "upper," "top," "bottom," and the like, may be used herein to facilitate description of the relationship of one component or part to another component or part shown in the drawings. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned upside down, components described as being "below" other components or parts may then be oriented "above" the other components or parts. Furthermore, terms such as "first," "second," and the like are not intended to emphasize the order or importance of the components referred to.

[0047] Figures 1 to 3 The electric mixer according to the present invention is shown. The electric mixer mainly includes a body composed of a body 204 and a base 207, a main motor 206 and a switch 209 are arranged in the body, and a circuit board 205 of the electric mixer is also arranged in the body. A rubber foot 208 can be arranged below the base 207 to facilitate the placement of the electric mixer and to attenuate vibration. The electric mixer also includes a mixing cup 104 with a metal cup body that can be separated from the body, and the mixing cup 104 has sufficient rigidity to mix food such as flour by the electric mixer. A stirring element is arranged in the mixing cup 104, and the stirring element is driven by the main motor 206. The electric mixer also includes a rod linkage device, which includes an upper connecting rod 107, a lower connecting rod 108 and a switch connecting rod 202. The side of the mixing cup 104 and the handle 105 fixed thereon define a channel, which can be mainly formed by the hollow of the handle 105, and the upper connecting rod 107 of the rod linkage device can be located in the channel. The bottom of the mixing cup 104 is fixed on the base and forms a storage space with the base. The lower end of the upper connecting rod 107 is located in the storage space. The lower connecting rod 108 is also arranged in the storage space. The side wall of the base has a through hole corresponding to the lower connecting rod 108. The switch connecting rod 202 is arranged in the body. The cup cover 103 is provided with a trigger mechanism that moves the upper connecting rod 107 downward when it is buckled in a suitable position on the mixing cup 104, thereby triggering the switch 209 through a rod linkage device, and an additional trigger 102. The trigger mechanism can be in the form of a block on the cup cover 103, and the additional trigger 102 can be in the form of a switch or sensor fixed on the cup cover 103. The electric mixer also includes a safety locking device arranged on the body, the safety locking device includes an inverted L-shaped pressure rod 101 and an actuator 109 for moving the pressure rod 101 up and down, and the actuator 109 can actuate the pressure rod 101 to trigger the trigger 102 on the cup cover 103.

[0048] Preferably, the safety locking device includes two inverted L-shaped pressure rods 101 on the left and right, and the two pressure rods 101 are synchronously actuated by an actuator 109. The horizontal section of at least one of the two pressure rods 101 is configured to trigger a trigger. When the safety locking device presses the cup cover 103, the horizontal sections of the two pressure rods 101 are arranged relative to each other in a straight line with respect to the center of the cup cover 103, so that when the pressure rod 101 presses the cup cover 103 and the stirring cup 104, the forces on both sides of the cup cover 103 are balanced, thereby ensuring the stability of the cup cover 103 and the stirring cup 104. The actuator 109 can be any type of actuating device known in the art that can move the pressure rod 101 up and down, such as a motor, an air pump or a hydraulic pump.

[0049] In particular, if Figure 3 As shown in , a body cover 201 is provided on the body 204, and the body cover 201 is provided with a recess. In operation, the bottom of the blending cup 104 is fixed on the base and placed in the recess together with the base. When the cup cover 103 is snapped into place on the blending cup 104, the trigger mechanism on the cup cover 103 presses the upper end of the upper connecting rod 107 downward to move the upper connecting rod 107 downward, and the lower end of the upper connecting rod 107 can push the lower connecting rod 108 outward from the base when moving downward, so that one end of the lower connecting rod 108 protrudes from the through hole of the base and pushes one end of the switch connecting rod 202, and the other end of the switch connecting rod 202 moves in the opposite direction at the same time to press the switch 209, and the switch connecting rod 202 can be fixed in the body by the switch connecting rod fixing frame 203, for example, fixed to the inner side of the recess of the body cover 201. When the switch 209 is triggered, the actuator 109 will actuate the pressure rod 101 to move downward, thereby pressing the cup cover 103 and the blending cup 104 against the machine body and triggering the trigger 102 on the cup cover 103 .

[0050] exist Figure 3 In the case shown in , the right pressure bar 101 is configured to trigger the trigger 102. In the embodiment where the trigger 102 is a switch, the pressure bar 101 is pressed against the trigger 102 on the cup cover 103 to trigger it. In the embodiment where the trigger 102 is a sensor, a corresponding sensor element, such as a proximity sensor, is provided in the pressure bar 101, so that the trigger 102 is triggered when the proximity sensor on the pressure bar 101 is close enough to the sensor on the cup cover 103. After both the switch 209 and the trigger 102 are triggered, the electric mixer can be powered on and operated.

[0051] Preferably, the electric mixer is provided with a transmission mechanism, and the rotation of the main motor 206 is transmitted to the stirring element in the stirring cup 104 through the transmission mechanism. According to an embodiment of the present invention, a screen 3 may be provided on the body cover 201 of the electric mixer, and the screen 3 may be a touch screen or a display screen combined with function keys. The various functions of the electric mixer can be operated through the screen 3 (combined with function keys in the case of a display screen). According to a preferred embodiment of the present invention, the screen 3 is in the form of a seven-inch touch screen.

[0052] Preferably, a heating device may also be provided at the bottom of the blending cup 104. When the switch 209 and the trigger 102 on the cup cover 103 are both triggered, the food in the blending cup 104 can be heated by supplying power to the heating device. According to a preferred embodiment of the present invention, the heating device includes a heating film for heating. According to a preferred embodiment of the present invention, the body of the blending cup 104 is made of stainless steel, thereby providing sufficient rigidity and heat transfer capacity.

[0053] Back reference Figure 1 , which shows the state in which the cup cover 103 and the mixing cup 104 are pressed by the pressure rod 101 during the operation of the electric mixer. In this state, the switch 209 on the cup cover 103 and the additional trigger 102 are both in the triggered on state, and the electric mixer can be powered on and operated. The expected functions of the electric mixer can be operated through the screen 3 on the body cover 201, such as setting the mixing and / or heating time and selecting the mixing and / or heating mode. During the operation of the electric mixer, since the cup cover 103 and the mixing cup 104 are pressed against the body by the pressure rod 101, it can prevent the accidental power failure and stop of operation due to the impact of food churning on the cup cover and the cup body, and avoid artificial movement of the cup cover and / or the cup body, which greatly improves the convenience of operation.

[0054] The electric mixer can stop running after the expected function is completed, and then the cup cover 103 and the mixing cup 104 can be released by the pressure rod 101. Figure 2 As shown in , the cup cover 103 and the blending cup 104 can be released by moving the pressure rod 101 upward to the initial release position by the actuator 109, which disconnects the trigger 102 on the cup cover 103. After the safety locking device is released, the cup cover 103 can be moved out of the buckled position, so that the upper link 107, the lower link 108 and the switch link 202 of the rod linkage device return to their initial stable positions, which also disconnects the switch 209. Usually, the initial stable positions of the upper link 107, the lower link 108 and the switch link 202 can be maintained by elastic members. Figure 2 When the cup cover 103 is opened in the situation shown in FIG, since the switch 209 and the trigger 102 are both in the disconnected state, the main motor 206 cannot drive the stirring element to rotate. This dual trigger mechanism greatly ensures the safety of use.

[0055] Preferably, a sealing ring is sandwiched between the mixing cup 104 and the cup cover 103. In addition, the cup cover 103 is provided with a through hole at its center to allow steam to be discharged when the food in the mixing cup 104 is heated. At the same time, in order to prevent the food in the mixing cup 104 from overflowing during heating, an anti-overflow cover can be inserted into the through hole. The anti-overflow cover can be a hollow cylinder with a top so that it can be used as a measuring cup.

[0056] The electric mixer may also include other necessary components to realize its functions, which are well known to those skilled in the art and will not be described in detail herein.

[0057] The above description is only used to exemplify the present invention and is not used to limit the present invention. It should be pointed out that for ordinary technicians in this field, several improvements, modifications and variations can be made to the present invention, but these improvements, modifications and variations should be regarded as falling within the scope of protection of the present invention without departing from the spirit of the present invention.

Claims

1. An electric mixer, comprising: A machine body consisting of a machine body (204) and a machine base (207), wherein a main motor (206) and a switch (209) are arranged in the machine body; a stirring cup (104) with a metal cup body which can be separated from the machine body, wherein a stirring element is arranged in the stirring cup (104), and a channel is defined between the side of the stirring cup (104) and a handle (105) fixed thereon; a cup cover (103) buckled on the stirring cup (104), wherein a trigger mechanism for triggering the switch (209) and an additional trigger (102) are arranged on the cup cover (103); a rod linkage device, wherein the rod linkage device comprises an upper connecting rod (107) located in the channel between the side of the stirring cup (104) and the handle (105); wherein the electric stirrer further comprises a device A safety locking device on the machine body, the safety locking device comprising a pressure rod (101) and an actuator (109) for moving the pressure rod (101) up and down; when the cup cover (103) is buckled into place on the stirring cup (104), the trigger mechanism causes the rod linkage device to trigger the switch (209) through the upper connecting rod (107), so that the actuator (109) actuates the pressure rod (101) to press the cup cover (103) and the stirring cup (104) onto the machine body; the additional trigger (102) on the cup cover (103) is triggered by the pressure rod (101); and the electric stirrer can be powered on and operated only after both the switch (209) and the additional trigger (102) are triggered. The safety locking device comprises two left and right inverted L-shaped pressure rods (101), the two inverted L-shaped pressure rods (101) are synchronously actuated by the actuator (109), so that the horizontal section of at least one of the two inverted L-shaped pressure rods (101) triggers the trigger (102), and When the safety locking device presses the cup cover (103), the horizontal sections of the two inverted L-shaped pressure rods (101) are arranged opposite to each other in a straight line with respect to the center of the cup cover (103).

2. The electric mixer according to claim 1, characterized in that: The body of the stirring cup (104) is made of stainless steel.

3. The electric mixer according to claim 1, characterized in that: The body (204) is provided with a body cover (201), and the body cover (201) is provided with a recess for placing a mixing cup and a screen (3) for controlling the electric mixer.

4. The electric mixer according to claim 1, characterized in that: A sealing ring is also sandwiched between the stirring cup (104) and the cup cover (103).

5. The electric mixer according to claim 1, characterized in that: The electric mixer is also provided with a transmission mechanism, and the rotation of the main motor (206) is transmitted to the stirring element in the stirring cup (104) through the transmission mechanism.

6. The electric mixer according to any one of claims 1 to 5, characterized in that: A heating device is provided at the bottom of the blending cup (104), and when both the switch (209) and the additional trigger (102) are triggered, the blending cup (104) can be heated by supplying power to the heating device.

7. The electric mixer according to claim 6, characterized in that: The heating device comprises a heat-generating film for heating.

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