blender

Abstract

A blender comprises: a body consisting of a body (203) and a base (205), wherein a main motor (204) and a switch (202) are arranged in the body; a safety locking device arranged on the body, comprising a pressure rod (101) and an actuator (105) for moving the pressure rod (101) up and down; a transparent blending cup (104) detachable from the body; and a cup cover (103) provided with a trigger (102), wherein the trigger (102) is triggered by the pressure rod (101) of the safety locking device. When the blending cup (104) is placed on the machine body, the switch (202) is turned on, so that the actuator (105) actuates the pressure rod (101) to press the cup cover (103) and the blending cup (104) onto the machine body, and the trigger (102) on the cup cover (103) is triggered by the pressure rod (101). Only after both the switch (202) and the trigger (102) are triggered can the blender be powered on and operated.

Description

Technical Field

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

[0002] A common fruit and vegetable blender is a kitchen appliance driven by a motor. Such a blender typically comprises a rotating body, a blending cup mounted on the body, and a stirring element mounted within the cup and driven by the body. When using a blender to squeeze and blend fruit, for example, it is necessary to stop stirring when the solid matter in the juice reaches an appropriate particle size to maintain a good taste. Therefore, a transparent blending cup is often used to facilitate observation of the particle size of the solid matter in the juice during operation.

[0003] Such blenders usually use a trigger switch at the bottom of the blender cup to control the power supply. When the trigger switch at the bottom of the cup powers on the machine, the motor drives the stirring element to rotate and stir. If the switch is triggered and the blender is running when the cup lid is not closed properly, the material in the cup may splash due to the rotation and stirring of the stirring element. In addition, during normal use of the blender, as the stirring element rotates the material in the cup, the material may tumble up and down and continuously impact the cup lid and cup body. The impact on the cup lid may cause the cup lid to open, causing the material in the cup to splash, and the cup body may move due to the impact, which can easily cause the trigger switch to disconnect, causing the blender to power off abnormally and stop working. In addition, accidentally hitting the cup body during operation may cause the cup body to move, causing the blender to power off abnormally.

[0004] CN 203950670U discloses a multifunctional wall-breaking machine, which includes a blending cup with a handle on the side wall, a cup lid and a cup bottom on the top and bottom, respectively. The cup bottom is provided with a rotating blade holder, a stirring motor that drives the rotating blade holder, and a metal blade holder seat that supports the rotating blade holder. The machine also includes a control circuit, a heating device that can transfer heat to the metal blade holder seat, a cup lid with an anti-overflow device that is electrically connected to the control circuit via an electrical connection device, and a safety locking device that can determine whether the cup lid and the blending cup are locked and control whether the control circuit can be connected. The safety locking device is a first magnetic control sensor located in the upper part of the handle and a second magnetic control sensor located on the cup lid and vertically aligned with the first magnetic control sensor when the cup lid is locked.

[0005] The above-mentioned existing technical solutions cannot prevent the material in the mixing cup from splashing out due to the impact of the material in the mixing cup on the cup lid during the operation of the machine, and cannot prevent the machine from being powered off and stopped working due to impact or accidental human movement of the cup body, which brings inconvenience to 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 and connected, the machine can be powered on, which cannot guarantee safety.

[0006] Therefore, it is desirable to provide a blender that can overcome the above-mentioned disadvantages. Summary of the Invention

[0007] In order to solve the deficiencies of the mixer in the prior art, the present invention provides a mixer with a safety locking device.

[0008] The technical solution adopted by the present invention to solve the technical problem is to provide a blender, which includes: a body consisting of a body and a base, a main motor and a switch are arranged in the body; a safety locking device is arranged on the body, the safety locking device includes a pressure rod and an actuator for moving the pressure rod up and down; a transparent blending cup that can be separated from the body, and a stirring element is arranged in the blending cup; a cup cover, a trigger is provided on the cup cover, and the trigger is triggered by the pressure rod of the safety locking device; wherein, when the blending cup is placed on the body, the switch push rod arranged on the body will be pressed down to turn on the switch, so that the actuator activates the pressure rod to press the cup cover and the blending cup onto the body, and the trigger on the cup cover is triggered by the pressure rod. Only after both the switch and the trigger are triggered can the blender be powered on and operated.

[0009] 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.

[0010] 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.

[0011] 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 side by side and in parallel with respect to the center of the cup cover.

[0012] According to a preferred embodiment of the present invention, outer ends of the horizontal sections of the two pressing rods are substantially flush with the outer periphery of the cup cover.

[0013] According to a preferred embodiment of the present invention, the pressing rod can be driven by an actuator to return to the initial release position after the blender stops running, thereby releasing the cup cover and the blending cup.

[0014] According to a preferred embodiment of the present invention, after the blending cup is removed from the machine body, the switch push rod returns to the initial stable position through the elastic member.

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

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

[0017] According to a preferred embodiment of the present invention, the body of the blending cup is made of a transparent hard material.

[0018] Compared with the existing technical solutions, the blender of the present invention has the following beneficial effects: on the one hand, by adopting a safety locking device, the cup cover and the blending cup are locked to the body of the blender when it is running, thereby preventing the material in the cup from splashing out due to the impact of food on the cup cover during the operation of the blender, and preventing the material from impacting the cup body or the cup body from being accidentally moved by humans, causing the machine to lose power and stop working; on the other hand, a multiple trigger mechanism is adopted to control the trigger mechanism of multiple (at least two) trigger points. The blender can only be powered on and operated after the trigger mechanisms of all trigger points are triggered, which greatly improves the safety factor of the blender.

[0019] The details of one or more embodiments of the present invention will be described in the following description of the drawings and specific embodiments. Other features, objects and advantages of the present invention will be apparent from these descriptions, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will now be described in more detail by way of example with reference to the accompanying drawings, which are not drawn to scale and in which:

[0021] Figure 1 is a three-dimensional schematic diagram of a blender according to the present invention, wherein the cup cover and the cup body are locked by a safety locking device;

[0022] Figure 2 is another perspective schematic diagram of the blender according to the present invention, wherein the cup cover and the cup body are in a released state;

[0023] Figure 3 1 is an exploded perspective view of a mixer according to the present invention.

[0024] Parts List

[0025] 101 pressure rod

[0026] 102 trigger

[0027] 103 cup lid

[0028] 104 blender cup

[0029] 105 actuator

[0030] 201 switch push rod

[0031] 202 switch

[0032] 203 fuselage

[0033] 204 main motor

[0034] 205 base

[0035] 206 rubber feet. DETAILED DESCRIPTION

[0036] The present invention will be described in more detail below with reference to 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.

[0037] Additionally, to facilitate description of the relationship of one component or part to another component or part shown in the drawings, spatially relative terms such as "lower," "upper," "top," "bottom," and the like may be used herein. 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, a component described as being "below" another component or part would then be oriented "above" the other component or part. Furthermore, terms such as "first," "second," etc., are not intended to emphasize the order or importance of the referenced components.

[0038] Figures 1 to 3 The figure shows a blender according to the present invention. The blender primarily comprises a body 203 and a base 205. A main motor 204 and a switch 202 are housed within the body, along with the blender's circuit board. A safety locking device is provided on the body, comprising a lever 101 and an actuator 105 for vertical movement of the lever 101. Rubber feet 206 may be provided beneath the base 205 to facilitate placement of the blender and reduce vibration.

[0039] The blender also includes a blending cup 104 that can be separated from the body. The cup body of the blending cup 104 is preferably transparent to facilitate observation of the operation conditions in the blending cup 104. A stirring element is provided in the blending cup 104, and the stirring element is driven by the main motor 204. Preferably, the blender is provided with a transmission mechanism, and the rotation of the main motor 204 is transmitted to the stirring element through the transmission mechanism. The bottom of the blending cup 104 is configured to be placed on the top seating surface of the body 203. A protrusion is provided on the seating surface, and the protrusion is configured to cooperate with a corresponding recess in the bottom of the blending cup 104 so as to position the blending cup 104 at a suitable position on the seating surface. Figure 3In the case shown in , four tapered protrusions are provided on the top seating surface of the body 203, which are symmetrically arranged in two pairs along the diagonal center of the rectangle, where one pair of protrusions is larger than the other pair of protrusions, so as to properly position the blending cup 104 on the seating surface.

[0040] During operation, the cup lid 103 snaps onto the rim of the blending cup 104. The cup lid 103 is provided with a trigger 102 that can be triggered by a pressure rod 101 of a safety locking device. The trigger 102 can be in the form of a switch or sensor fixed to the cup lid 103. Specifically, when the blending cup 104 with the cup lid 103 is placed on the supporting surface of the machine body, the bottom of the blending cup 104 presses the switch push rod 201 provided on the machine body, thereby turning on the switch 202. The actuator 105 activates the pressure rod 101 to press the cup lid 103 and the blending cup 104 against the machine body, and the pressure rod 101 triggers the trigger 102 on the cup lid 103.

[0041] 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 105. 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 side by side in parallel with the center of the cup cover 103. Preferably, the outer ends of the horizontal sections of the two pressure rods 101 are substantially flush with the outer periphery 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 105 can be any type of actuating device known in the art that can move the pressure rod 101 up and down, for example, a motor, an air pump or a hydraulic pump.

[0042] In particular, Figure 3 In the embodiment shown in FIG, right-side lever 101 is configured to trigger trigger 102. In an embodiment where trigger 102 is a switch, lever 101 is pressed against trigger 102 on lid 103 to turn it on. In an embodiment where trigger 102 is a sensor, lever 101 is provided with a corresponding sensing element, such as a proximity sensor, so that trigger 102 is triggered when the proximity sensor on lever 101 and the sensor on lid 103 are sufficiently close. When both switch 202 and trigger 102 are triggered, the blender can be powered on and operated.

[0043] Preferably, a sealing ring is sandwiched between the blending cup 104 and the cup lid 103 to achieve good sealing. According to a preferred embodiment of the present invention, the cup body of the blending cup 104 is made of a transparent hard material (e.g., hard plastic, resin, glass, etc.) to facilitate observation of the operation status of the blending cup 104 and provide sufficient rigidity.

[0044] Back reference Figure 1 , which shows the state in which the cup cover 103 and the blending cup 104 are pressed against the body by the pressure rod 101 during the operation of the blender. In this state, the pressure rod 101 presses the cup cover 103 and the blending cup 104 against the body and triggers the trigger 102 on the cup cover 103. At this time, the switch 202 and the trigger 102 are both in the on state, the blender can be powered on and operated, and the expected functions of the blender can be operated through the function buttons on the body 203, such as setting the blending mode and blending time. During the operation of the blender, the cup cover 103 and the blending cup 104 are both pressed against the body by the pressure rod 101. Specifically, the pressure rod 101 presses the cup cover 103 and the blending cup 104 in the vertical direction. At the same time, the protrusion on the top seat surface of the body 203 cooperates with the corresponding recessed seat in the bottom of the blending cup 104, so that the blending cup 104 is fixed in place and cannot move. The action of the pressure rod 101 of the safety locking device can effectively prevent the material in the mixing cup from splashing out due to the impact of the material in the mixing cup on the cup cover, and can also prevent the machine from being powered off and stopped due to impact or accidental human movement of the cup body, thereby greatly improving the convenience of operation.

[0045] The blender can stop running after the expected function is completed, and then the cup cover 103 and the blending cup 104 can be released by the pressure rod 101. Figure 2 As shown in , the actuator 105 can be used to move the pressure rod 101 upward to return to the initial release position to release the cup cover 103 and the blending cup 104, which causes the trigger 102 on the cup cover 103 to disconnect. After the pressure rod 101 of the safety locking device releases the cup cover 103 and the blending cup 104, the blending cup 104 can be removed from the machine body together with the cup cover 103, and the switch push rod 201 on the machine body can return to the initial stable position through the elastic member, which causes the switch 202 to also disconnect. Figure 2 In the case shown in FIG, since the trigger 102 is in the disconnected state, the main motor 204 cannot drive the stirring element to rotate, and safety can be ensured when the cup cover 103 is opened.

[0046] The mixer may further 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.

[0047] The above description is intended to illustrate the present invention only and is not intended to limit the present invention. It should be noted that a person skilled in the art may make various improvements, modifications, and variations to the present invention, but such improvements, modifications, and variations should be deemed to fall within the scope of protection of the present invention without departing from the spirit of the present invention.

Claims

1. A blender comprising: The machine body is composed of a machine body (203) and a machine base (205), wherein a main motor (204) and a switch (202) are provided in the machine body; a safety locking device is provided on the machine body, wherein the safety locking device comprises a pressure rod (101) and an actuator (105) for moving the pressure rod (101) up and down; a transparent stirring cup (104) detachable from the machine body, wherein a stirring element is provided in the stirring cup (104); a cup cover (103), wherein a trigger (102) is provided on the cup cover (103), wherein the trigger (102) is activated by the safety locking device. The pressure rod (101) is triggered; wherein, when the blending cup (104) is placed on the machine body, the switch push rod (201) provided on the machine body is pressed down, thereby turning on the switch (202), so that the actuator (105) actuates the pressure rod (101) to press the cup cover (103) and the blending cup (104) onto the machine body, and the trigger (102) on the cup cover (103) is triggered by the pressure rod (101). Only after both the switch (202) and the trigger (102) are triggered can the blender be powered on and operated.

2. The mixer according to claim 1, characterized in that The safety locking device comprises two left and right inverted L-shaped pressure rods (101), and the two pressure rods (101) are synchronously actuated by the actuator (105).

3. The mixer according to claim 2, characterized in that The horizontal section of at least one of the two pressure rods (101) is configured to trigger the trigger (102).

4. The mixer according to claim 2, characterized in that When the safety locking device presses the cup cover (103), the horizontal sections of the two pressing rods (101) are arranged side by side and in parallel with respect to the center of the cup cover (103).

5. The mixer according to claim 4, characterized in that The outer ends of the horizontal sections of the two pressure rods (101) are substantially flush with the outer periphery of the cup cover (103).

6. The mixer according to any one of claims 1 to 5, characterized in that The pressing rod (101) can be driven back to the initial release position by the actuator (105) after the blender stops running, thereby releasing the cup cover (103) and the blending cup (104).

7. The mixer according to claim 6, characterized in that After the stirring cup (104) is removed from the machine body, the switch push rod (201) returns to the initial stable position through the elastic member.

8. The mixer according to any one of claims 1 to 5, characterized in that A sealing ring is also sandwiched between the stirring cup (104) and the cup cover (103).

9. The mixer according to any one of claims 1 to 5, characterized in that The blender is also provided with a transmission mechanism, and the rotation of the main motor (204) is transmitted to the stirring element in the blending cup (104) through the transmission mechanism.

10. The mixer according to any one of claims 1 to 5, characterized in that The cup body of the stirring cup (104) is made of transparent hard material.

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