Handheld stirrer

Abstract

The utility model discloses a handheld blender which comprises a main machine assembly and a blending assembly, the main machine assembly at least comprises a machine shell, a circuit board and a motor module are arranged in the machine shell, and the blending assembly is detachably connected with the machine shell; a first trigger switch is arranged in the machine shell, the circuit board is connected with the motor module and the first trigger switch, the machine shell is movably provided with a first trigger element, and the first trigger element can move between a first position and a second position relative to the machine shell. An elastic element for keeping the first trigger element at a first position is arranged in the shell, and a pressed part and a trigger part are arranged on the first trigger element; the stirring assembly is connected with the machine shell, and the stirring assembly drives the pressed part to drive the first triggering element to move from a first position to a second position; when the first trigger element is located at the second position, the trigger part abuts against the induction end of the first trigger switch.

Description

Technical Field

[0001] The utility model relates to a handheld mixer. Background Art

[0002] Prior art, such as Chinese invention patent document with publication number CN102727108B, discloses a hand-held blender, including a shell, a micromotor for providing driving force, a transmission mechanism and at least one stirring component, wherein the micromotor and the transmission mechanism are connected and jointly arranged in the shell, the stirring component is connected to the transmission mechanism, a PTC heater is provided on the stirring component, and the PTC heater is connected to a power source through a heat-resistant wire.

[0003] In the prior art, the handheld blender is composed of a main unit component and a stirring unit, and the two need to be assembled before use. When in use, the stirring unit is driven to rotate by the main unit component by pressing a button.

[0004] Based on the above, the technical problem of the existing hand-held blender is that there is no structure for detecting the installation position of the blending component, resulting in the motor module being started when the blending component is not installed in place. At this time, the main unit and the blending component may be separated, which poses a safety hazard and needs further improvement. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a hand-held mixer provided with a stirring component safety detection.

[0006] A hand-held blender designed for this purpose comprises a main body component and a blending component, wherein the main body component at least comprises a housing, a circuit board and a motor module are arranged in the housing, and the blending component is detachably connected to the housing;

[0007] A first trigger switch is arranged in the housing, the circuit board is connected to the motor module and the first trigger switch, a first trigger element is movably arranged in the housing, the first trigger element can move between a first position and a second position relative to the housing, an elastic element is arranged in the housing to keep the first trigger element in the first position, and a pressure receiving portion and a triggering portion are arranged on the first trigger element;

[0008] The stirring assembly is connected to the housing, and the stirring assembly drives the pressure-bearing portion to drive the first trigger element to move from the first position to the second position;

[0009] When the first trigger element is located at the second position, the trigger portion abuts against the sensing end of the first trigger switch.

[0010] Preferably, the first trigger element is arranged to move up and down relative to the casing;

[0011] The pressed part extends downward relative to the first trigger element;

[0012] The trigger part extends upward relative to the first trigger element;

[0013] The first trigger switch is arranged in the casing above the first trigger element.

[0014] Preferably, a guiding hole is arranged on the first trigger element, a guiding post is arranged in the casing, and the guiding post is movably inserted into the guiding hole;

[0015] A limiting frame is arranged at the upper end of the guiding post, and the elastic element is sleeved on the guiding post between the limiting frame and the first trigger element.

[0016] Preferably, the lower end of the casing is open, a lower end cover is arranged at the lower end of the casing, an opening is arranged on the lower end cover, and the pressed part extends downward through the opening.

[0017] Preferably, a connecting part is arranged on the lower end cover, and the stirring assembly is detachably connected to the connecting part.

[0018] Preferably, a display area is arranged on the upper end surface of the casing, a display circuit board is arranged below the display area, the display circuit board is connected with a slide potentiometer, an installation space is arranged on the side wall of the casing, a speed regulation button is slidably arranged in the installation space, a return spring for applying a force to the speed regulation button is arranged in the casing, and the speed regulation button is connected with the sliding end of the slide potentiometer.

[0019] Preferably, a second trigger switch is arranged in the casing, the speed regulation button is arranged to move left and right relative to the casing, the second trigger switch is arranged in the casing on the right side of the speed regulation button, and the return spring applies a leftward force to the speed regulation button;

[0020] A second trigger element for abutting against the second trigger switch is arranged on the speed regulation button.

[0021] Preferably, the second trigger element includes a fixed sleeve arranged on the speed regulation button, a trigger piece is slidably arranged in the fixed sleeve, and a first spring is connected between the fixed sleeve and the trigger piece.

[0022] Preferably, the casing and the stirring assembly are connected to each other by a buckle structure.

[0023] Compared with the prior art, a first trigger switch is provided inside the casing. The circuit board is connected to the motor module and the first trigger switch. A first trigger element is movably arranged on the casing. The first trigger element can move relative to the casing between a first position and a second position. An elastic element for keeping the first trigger element at the first position is provided inside the casing. A pressure-receiving part and a triggering part are provided on the first trigger element. The stirring assembly is connected to the casing. The stirring assembly drives the pressure-receiving part to drive the first trigger element to move from the first position to the second position. When the first trigger element is in the second position, the triggering part abuts against the sensing end of the first trigger switch. In the present utility model, when the main machine assembly and the stirring assembly are not assembled, affected by the acting force of the elastic element, the first trigger element remains at the first position. At this time, the first trigger switch is in an untriggered state, and the circuit board does not receive the electrical signal of the first trigger switch to remain in the shutdown state, so as to avoid starting the motor module by pressing the button. When the stirring assembly and the main machine assembly are assembled, the stirring assembly drives the pressure-receiving part to drive the first trigger element to move from the first position to the second position. When the stirring assembly and the main machine assembly are in the fully connected position, when the first trigger element is in the second position, it abuts against the sensing end, and the first trigger switch sends an electrical signal to the circuit board. In this state, the main machine assembly enters the startable state, and the motor module can be determined to work by pressing the button. The present utility model can avoid the safety hazards existing when the stirring assembly is not installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective structural view of a hand-held blender;

[0025] Figure 2 is an exploded structural view of a hand-held blender;

[0026] Figure 3 is an exploded sectional structural view of a hand-held blender;

[0027] Figure 4 is a sectional structural view of the main machine assembly;

[0028] Figure 5 is a partial sectional structural view of the main machine assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will be further described below with reference to the drawings and embodiments.

[0030] See Figures 1-5, A hand-held blender, comprising a main body assembly 10 and a stirring assembly 20. The main body assembly 10 at least includes a housing 110. A circuit board 120 and a motor module 130 are arranged in the housing 110. The stirring assembly 20 is detachably connected to the housing 110;

[0031] A first trigger switch 310 is arranged in the housing 110. The circuit board 120 is connected to the motor module 130 and the first trigger switch 310. A first trigger element 320 is movably arranged on the housing 110. The first trigger element 320 can move relative to the housing 110 between a first position and a second position. An elastic element 330 for keeping the first trigger element 320 in the first position is arranged in the housing 110. A pressure-receiving part 321 and a trigger part 322 are arranged on the first trigger element 320;

[0032] The stirring assembly 20 is connected to the housing 110. The stirring assembly 20 drives the pressure-receiving part 321 to drive the first trigger element 320 to move from the first position to the second position;

[0033] When the first trigger element 320 is in the second position, the trigger part 322 abuts against the sensing end 311 of the first trigger switch 310.

[0034] Furthermore, the housing 110 and the stirring assembly 20 are connected to each other by a snap structure.

[0035] Based on the above embodiment, when the main body assembly and the stirring assembly are not assembled, affected by the acting force of the elastic element, the first trigger element remains in the first position. At this time, the first trigger switch is in an untriggered state, and the circuit board does not receive the electrical signal of the first trigger switch to remain in the shutdown state, so as to avoid the motor module being started by pressing the button.

[0036] When the stirring assembly is assembled with the main body assembly, the stirring assembly drives the pressure-receiving part to drive the first trigger element to move from the first position to the second position. When the stirring assembly and the main body assembly are in the fully connected position, when the first trigger element is in the second position, it abuts against the sensing end, and the first trigger switch sends an electrical signal to the circuit board. In this state, the main body assembly enters the startable state, and the motor module can be driven to work by pressing the button.

[0037] See Figure 4 and Figure 5 , the first trigger element 320 is arranged to move up and down relative to the housing 110; the pressure-receiving part 321 extends downward relative to the first trigger element 320; the trigger part 322 extends upward relative to the first trigger element 320; the first trigger switch 310 is arranged in the housing 110 above the first trigger element 320.

[0038] Further, the first trigger switch 310 is a micro switch, which is integrally arranged on the circuit board 120.

[0039] See Figure 3 , a guiding hole 360 is arranged on the first trigger element 320, a guiding column 103 is arranged in the casing 110, and the guiding column 103 is movably inserted into the guiding hole 360; a limiting frame 340 is arranged at the upper end of the guiding column 103, and the elastic element 330 is sleeved on the guiding column 103 between the limiting frame 340 and the first trigger element 320.

[0040] Further, the elastic element 330 is a spring.

[0041] Further, the limiting frame 340 and the guiding column 103 are fixedly connected by screws.

[0042] See Figure 2 and Figure 3 , the lower end of the casing 110 is provided with an opening, a lower end cover 100 is arranged at the lower end of the casing 110, an opening 101 is arranged on the lower end cover 100, and the pressure receiving part 321 extends downward through the opening 101.

[0043] Further, the guiding column 103 is arranged on the lower end cover 100.

[0044] See Figure 2 and Figure 3 , a connecting part 102 is arranged on the lower end cover 100, and the stirring assembly 20 is detachably connected to the connecting part 102.

[0045] Further, the stirring assembly 20 at least includes a stirring cover and a stirring shaft rotatably arranged in the stirring cover. A cutter head is arranged at the lower end of the stirring shaft, and a driven coupler is arranged at the upper end thereof. The driven coupler is coupled and driven with the driving coupler of the motor module 130. A joint cavity is formed at the upper end of the stirring cover, and the connecting part 102 is inserted into the joint cavity to achieve connection.

[0046] Furthermore, the connecting part 102 and the joint cavity are connected by an existing rotary snap structure.

[0047] See Figure 3, a display area 510 is provided on the upper end surface of the housing 110, a display circuit board 520 is provided below the display area 510, the display circuit board 520 is connected to a slide potentiometer 530, an installation space is provided on the side wall of the housing 110, and a speed control button 410 is slidably provided in the installation space. A return spring for applying a force to the speed control button 410 is provided in the housing 110, and the speed control button 410 is connected to the sliding end 531 of the slide potentiometer 530.

[0048] The display area 510 is a display panel provided on the upper end surface of the housing 110, and this panel can be a light-transmitting plate or a display screen.

[0049] Further, the display circuit board 520 includes a PCB board, and multiple display lamp beads are integrated on the PCB board. When the panel is a light-transmitting plate, light-transmitting areas are opened in the plate for the display lamp beads at different positions, so that the light of the display lamp beads can be scattered to the outside from the corresponding light-transmitting areas. In this embodiment, as the speed control button is pressed, the sliding end 531 of the slide potentiometer 530 moves accordingly. When the position of the sliding end 531 changes, the resistance inside the slide potentiometer 530 changes, and the current passing through it also changes. Along with the current change, the display circuit board 520 controls different display lamp beads to light up, and the user can identify the gear change according to the lighting of different lamp beads.

[0050] Further, when the current of the slide potentiometer 530 changes, the circuit board 120 controls the rotation of the motor module 130 according to the changed electrical signal for stepless speed regulation. This stepless speed regulation is a prior art and will not be elaborated here.

[0051] Further, the display circuit board 520 is integrated with installation prompt lamp beads. When the first trigger switch 310 is triggered and sends an electrical signal to the circuit board 120, the circuit board 120 controls the installation prompt lamp beads on the display circuit board 520 to light up, and the user can judge whether the main machine assembly 10 and the stirring assembly 20 are installed in place according to the lighting situation of the installation prompt lamp beads.

[0052] See Figure 4, a second trigger switch 430 is disposed inside the housing 110. The speed control button 410 is disposed to move left and right relative to the housing 110. The second trigger switch 430 is disposed inside the housing 110 on the right side of the speed control button 410. The return spring applies a leftward acting force to the speed control button 410. A second trigger element 420 that abuts against the second trigger switch 430 is disposed on the speed control button 410. When adding the function of the second trigger switch 430, false triggering caused by slight pressing is avoided. The user must press the speed control button 410 to a preset stroke to cause the second trigger element 420 to trigger the second trigger switch 430, so that the second trigger switch 430 sends an electrical signal to the circuit board 120, and the circuit board 120 can control the motor module 130 to start. To implement the installation combination structure of the first trigger switch 310 and the second trigger switch 430 forming a double-switch structure.

[0053] Further, the second trigger switch 430 adopts an existing micro switch.

[0054] See Figure 4 , the second trigger element 420 includes a fixed sleeve 421 disposed on the speed control button 410. A trigger member 423 is slidably disposed inside the fixed sleeve 421. A first spring 422 is connected between the fixed sleeve 421 and the trigger member 423. In this embodiment, pressing the speed control button 410 drives the first spring 422 to push the trigger member 423 to move towards the second trigger switch 430. The function of the first spring 422 is that it can prevent the trigger member 423 from coming into hard contact with the second trigger switch 430 and causing damage to the second trigger switch 430.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0056] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A hand-held blender, comprising a main body component (10) and a blending component (20), wherein the main body component (10) comprises at least a housing (110), a circuit board (120) and a motor module (130) are arranged in the housing (110), and the blending component (20) is detachably connected to the housing (110); Features: A first trigger switch (310) is arranged in the housing (110); the circuit board (120) is connected to the motor module (130) and the first trigger switch (310); a first trigger element (320) is movably arranged in the housing (110); the first trigger element (320) can move between a first position and a second position relative to the housing (110); an elastic element (330) is arranged in the housing (110) for keeping the first trigger element (320) in the first position; and a pressure receiving portion (321) and a triggering portion (322) are arranged on the first trigger element (320); The stirring component (20) is connected to the housing (110), and the stirring component (20) drives the pressure-bearing portion (321) to drive the first trigger element (320) to move from the first position to the second position; When the first trigger element (320) is located at the second position, the trigger portion (322) abuts against the sensing end (311) of the first trigger switch (310).

2. A hand-held mixer according to claim 1, characterized in that: The first trigger element (320) is arranged to move up and down relative to the housing (110); The pressure-bearing portion (321) is arranged to extend downward relative to the first triggering element (320); The trigger portion (322) is arranged to extend upward relative to the first trigger element (320); The first trigger switch (310) is arranged in the housing (110) above the first trigger element (320).

3. A hand-held mixer according to claim 2, characterized in that: A guide hole (360) is provided on the first trigger element (320), a guide column (103) is provided in the housing (110), and the guide column (103) is movably inserted in the guide hole (360); A limiting frame (340) is provided at the upper end of the guide column (103), and the elastic element (330) is sleeved on the guide column (103) between the limiting frame (340) and the first trigger element (320).

4. A hand-held mixer according to claim 1 or 2, characterized in that: The lower end of the housing (110) is provided with an opening, the lower end of the housing (110) is provided with a lower end cover (100), the lower end cover (100) is provided with an opening (101), and the pressure-receiving portion (321) extends downward through the opening (101).

5. A hand-held mixer according to claim 4, characterized in that: The lower end cover (100) is provided with a connecting portion (102), and the stirring assembly (20) is detachably connected to the connecting portion (102).

6. A hand-held blender according to claim 1, characterized in that: A display area (510) is arranged on the upper end surface of the housing (110), a display circuit board (520) is arranged below the display area (510), the display circuit board (520) is connected to a sliding potentiometer (530), an installation space is arranged on the side wall of the housing (110), a speed adjustment button (410) is slidably arranged in the installation space, a return spring for applying a force to the speed adjustment button (410) is arranged in the housing (110), and the speed adjustment button (410) is connected to a sliding end (531) of the sliding potentiometer (530).

7. A hand-held blender according to claim 6, characterized in that: A second trigger switch (430) is arranged in the housing (110); the speed adjustment button (410) is arranged to be movable leftward and rightward relative to the housing (110); the second trigger switch (430) is arranged in the housing (110) on the right side of the speed adjustment button (410); and the return spring applies a leftward force to the speed adjustment button (410); The speed adjustment button (410) is provided with a second trigger element (420) abutting against the second trigger switch (430).

8. A hand-held blender according to claim 7, characterized in that: The second trigger element (420) comprises a fixed sleeve (421) arranged on the speed control button (410), a trigger member (423) is slidably arranged in the fixed sleeve (421), and a first spring (422) is connected between the fixed sleeve (421) and the trigger member (423).

9. The hand-held blender according to claim 1, characterized in that: The housing (110) and the stirring assembly (20) are connected to each other using a snap-fit ​​structure.

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