Expansion shaft transmission protection switch and stirrer

Abstract

The utility model discloses an expansion shaft transmission protection switch and a stirrer, and relates to the technical field of stirrers, the expansion shaft transmission protection switch comprises a connecting column, a sensor and an output device, a telescopic moving part is plugged on the connecting column, and when a component outputting power outwards is installed on the connecting column, the moving part can be pressed and touched to move in the direction far away from an installation cavity, and the output device outputs the power outwards. And the controller can reduce the output torque of the motor, the situation that the output shaft is broken due to the fact that the output torque is too large is avoided, and the use safety of the stirring machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mixer, especially to extension shaft drive protection switch and mixer. BACKGROUND

[0002] In the related art, the mixer is often used for mixing dough, mixing stuffing, whipping cream or egg liquid in food processing. In order to improve the functional diversity of the mixer, an extension shaft is provided on the mixer, and different transmission mechanisms such as stirring, crushing and meat grinding mechanisms can be connected to the extension shaft, thereby realizing multiple use functions. However, the extension shaft is power-connected with the main transmission shaft, and the structural strength of the extension shaft is relatively low, which is often suitable for low-power or low-torque use scenarios, and in some high-torque use scenarios, the extension shaft is prone to damage, thereby being dangerous. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides an extension shaft drive protection switch and a mixer, which can reduce the output torque of the extension shaft and avoid equipment damage.

[0004] According to the extension shaft drive protection switch of the first aspect of the utility model, the extension shaft drive protection switch comprises:

[0005] The connecting column is provided with a pivotally connected output shaft at one end, and a movable piece is inserted on the connecting column, and the connecting column has a mounting cavity, and one end of the movable piece extends into the mounting cavity;

[0006] A sensor is connected to the movable piece;

[0007] An output device comprises a motor and a controller, the controller is electrically connected with the sensor and the motor respectively, and the motor is connected with the output shaft;

[0008] When the power output component is installed on the connecting column, the movable piece can be pressed and moved away from the mounting cavity, thereby triggering the sensor, and the controller can reduce the output torque of the motor.

[0009] According to the extension shaft drive protection switch of the first aspect of the utility model, at least the following beneficial effects are achieved: the embodiment comprises a connecting column, a sensor and an output device, a telescopic movable piece is inserted on the connecting column, when the power output component is installed on the connecting column, the movable piece can be pressed and moved away from the mounting cavity, thereby triggering the sensor, and the controller can reduce the output torque of the motor, so as to avoid the output shaft from being broken due to excessive output torque, and the use safety of the mixer is improved.

[0010] According to the embodiment of the first aspect of the utility model, the moving direction of the movable piece is inclined to the axis direction of the connecting column.

[0011] According to the first aspect of the utility model, the axis direction of the movable part is inclined to the axis direction of the connecting column.

[0012] According to the first aspect of the utility model, the connecting column is provided with a connecting section and a power section, the output shaft is inserted into the power section, and the connecting section has a mounting cavity.

[0013] According to the first aspect of the utility model, the axis direction of the movable part is inclined to the axis direction of the connecting column, and the automatic force section is directed to the connecting section, and the movable part extends from the outer peripheral wall of the connecting column to the direction of the mounting cavity.

[0014] According to the first aspect of the utility model, the outer peripheral wall of the connecting column is provided with a fixing part, and one end of the movable part, which is away from the mounting cavity, is elastically connected to the fixing part.

[0015] According to the first aspect of the utility model, the connecting column is provided with an insertion slot, the movable part is inserted into the insertion slot, a limiting table is arranged in the insertion slot, a protruding positioning part is arranged on the outer peripheral wall of the movable part, and the positioning part can be elastically pressed against the limiting table to limit the movable part.

[0016] According to the first aspect of the utility model, one end of the output shaft, which is away from the mounting cavity, is provided with a transmission gear, and one side wall of the transmission gear is slidably abutted against one end of the connecting column.

[0017] According to the first aspect of the utility model, a bearing is arranged between the end of the power section close to the output shaft and the transmission gear.

[0018] According to the second aspect of the utility model, a mixer is provided, which comprises the extended shaft transmission protection switch.

[0019] The box body is provided with the connecting column, the sensor and the output device, and the output shaft.

[0020] The mixer according to the second aspect of the utility model has at least the following beneficial effects:

[0021] Compared with the prior art, the mixer has the extended shaft transmission protection switch, which comprises the connecting column, the sensor and the output device, the movable part is inserted into the connecting column, the part for outputting power is mounted on the connecting column, the movable part is pressed and moved away from the mounting cavity, the sensor is triggered, the controller can reduce the output torque of the motor, the situation that the output shaft is broken due to the excessive output torque is avoided, and the use safety of the mixer is improved.

[0022] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in connection with the drawings and examples, in which:

[0024] Figure 1 is a perspective view of the extended shaft transmission protection switch in the embodiment of the first aspect of the present application;

[0025] Figure 2 is a sectional view of the extended shaft transmission protection switch in the embodiment of the first aspect of the present application;

[0026] Figure 3 is Figure 2 is an enlarged view of A in the embodiment of the first aspect of the present application;

[0027] Figure 4 is a partial view of the box body in the embodiment of the second aspect of the present application.

[0028] REFERENCE NUMERALS:

[0029] Box body 100; connecting column 101; output shaft 102; connecting section 103; power section 104; mounting cavity 105; plug-in slot 106; movable part 107; trigger end 1071; limiting table 108; positioning part 109; elastic part 110; transmission gear 111; bearing 112; fixed part 113; fixed block 114; sealing ring 115; through hole 116. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the utility model, if several meanings are one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. Understand as not including the number, above, below, within, etc. Understand as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. Should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model combined with the specific content of the technical scheme.

[0034] In the related art, the mixer is often used for mixing, mixing, whipping cream or egg liquid in food processing. In order to improve the functional diversity of the mixer, the expansion shaft is provided on the mixer at present, and different transmission mechanisms such as stirring, crushing, meat grinding mechanism can be connected with the expansion shaft, so as to realize multiple use functions. However, the expansion shaft is power connected with the main transmission shaft, and the structural strength of the expansion shaft is low, which is often suitable for low power or low torque use scene, and is easy to cause damage of the expansion shaft in some large torque use scene, thereby having danger.

[0035] To solve the above problems, refer to Figure 1 and Figure 2 In the embodiment of the first aspect of the utility model, an expansion shaft transmission protection switch is provided, which comprises a connecting column 101, a sensor and an output device, one end of the connecting column 101 is provided with a pivoted output shaft 102, the connecting column 101 is inserted with a movable piece 107, the connecting column 101 has a mounting cavity 105, and one end of the movable piece 107 extends into the mounting cavity 105. It can be understood that the movable piece 107 has a trigger end 1071 protruding from the inner wall of the mounting cavity 105, and when the external connecting component is inserted into the mounting cavity 105, the trigger end 1071 can be abutted, so as to drive the movable piece 107 to move. The sensor is connected with the movable piece 107; the output device comprises a motor and a controller, the controller is electrically connected with the sensor and the motor respectively, and the motor is connected with the output shaft 102. It can be understood that when the connecting column 101 is installed with the component outputting power outward, the movable piece 107 can be pressed and moved away from the mounting cavity 105, so as to trigger the sensor, the controller can reduce the output torque of the motor, avoid the case that the output shaft 102 is broken due to too large output torque, and improve the use safety of the mixer.

[0036] Specifically, the connecting column 101 is provided with a connecting section 103 and a power section 104, the output shaft 102 is inserted into the power section 104 and rotates in the power section 104, and the connecting section 103 is provided with a mounting cavity 105. It can be understood that the power output component is inserted into the mounting cavity 105 and connected with the end of the output shaft 102, so as to realize power output.

[0037] It can be understood that, referring to Figure 3 , the moving direction of the movable member 107 is inclined to the axis direction of the connecting column 101. Further, when the power output component is mounted on the connecting column 101, the movable member 107 can move obliquely upward in the direction away from the mounting cavity 105 and the output shaft 102. It can be understood that the axis direction of the connecting column 101 is parallel to the horizontal direction, so that the power output component is inserted into the mounting cavity 105 in the horizontal direction and presses the trigger end 1071 of the movable member 107, so that the movable member 107 moves obliquely upward in the direction away from the mounting cavity 105 and the output shaft 102, i.e. in the horizontal direction, the movable member 107 can move away from the mounting cavity 105, so that the movable member 107 is easily triggered and the sensitivity is improved.

[0038] It can be understood that the movable member 107 is a rod body with a central axis. In some embodiments, the axis direction of the movable member 107 is inclined to the axis direction of the connecting column 101, and the movable member 107 moves along the axis direction, which is beneficial to improve the stability of the movement of the movable member 107.

[0039] In some embodiments, the axis direction of the movable member 107 is inclined to the axis direction of the connecting column 101, and the automatic force section 104 is inclined downward to the connecting section 103, and the movable member 107 extends from the outer peripheral wall of the connecting column 101 to the mounting cavity 105, i.e. the axis direction of the movable member 107 is inclined downward to the connecting section 103 of the automatic force section 104, which is beneficial to effectively press and push the movable member 107 to move by the power output component, and improve the effectiveness of triggering.

[0040] It can be understood that the outer peripheral wall of the connecting column 101 is provided with a fixing part 113, the fixing part 113 comprises a fixing block 114, the fixing block 114 extends in a direction perpendicular to the axis of the movable part 107, so that the fixing block 114 is inclined to the central axis of the connecting column 101. Further, the end of the movable part 107 away from the mounting cavity 105 is elastically connected to the fixing part 113. Specifically, the movable part 107 is provided with a limiting part protruding in the radial direction thereof, the outer diameter of the limiting part is greater than the outer diameter of the movable part 107, and the fixing block 114 and the limiting part are provided with an elastic part 110. In this embodiment, the elastic part 110 is a coil spring, and the elastic part 110 can keep the trigger end 1071 of the movable part 107 protruding from the inner wall of the mounting cavity 105, so as to realize automatic reset of the movable part 107 after being pressed.

[0041] Further, the connecting column 101 is provided with a plug-in slot 106, the movable part 107 is movably plugged into the plug-in slot 106, and the plug-in slot 106 is provided with a limiting table 108. It can be understood that when the movable part 107 is not pressed, the positioning part 109 can elastically press the limiting table 108, so as to limit the movable part 107, and make the trigger end 1071 protrude from the inner wall of the mounting cavity 105 by a predetermined height.

[0042] It can be understood that the end of the output shaft 102 away from the mounting cavity 105 is provided with a transmission gear 111, the motor outputs power to the output shaft 102 through the transmission gear 111, and one side wall of the transmission gear 111 slidably abuts against one end of the connecting column 101. Further, the bearing 112 is arranged between the end of the power section 104 close to the end of the output shaft 102 and the transmission gear 111. In this embodiment, the transmission gear 111 is an umbrella-shaped gear, and the bearing 112 is a thrust ball bearing, which can bear the axial force from the umbrella-shaped gear, and is beneficial to maintaining the rigidity of transmission. Further, the end of the connecting column 101 facing the bearing 112 is provided with a sealing ring 115, the sealing ring 115 abuts against the connecting column 101 and the bearing 112 on both sides in the axial direction of the connecting column 101, so as to prevent the lubricating grease of the bearing 112 from leaking, and to prevent dust and foreign matters from entering the bearing 112, thereby avoiding transmission jamming and improving transmission efficiency.

[0043] According to the second aspect of the embodiment of the utility model, a kind of stirrer is provided, including the above-mentioned extension shaft transmission protection switch. Figure 4 It can be understood that the stirrer comprises a box body 100, the connecting column 101 is fixedly installed in the box body 100, the box body 100 is provided with a through hole 116, and the end of the connecting column 101 away from the output shaft 102 passes through the through hole 116 and protrudes outside the box body 100, which is beneficial to improve the convenience of connecting extension component.

[0044] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. An extended shaft drive protection switch characterized in that, The utility model relates to a kind of output shaft protection switch, including: Connecting column, one end of the connecting column is provided with pivotally connected output shaft, movable element is inserted on the connecting column, the connecting column has installation cavity, one end of the movable element extends into the installation cavity; Sensor, connected with the movable element; Output device, including motor and controller, the controller is electrically connected with the sensor and the motor respectively, and the motor is connected with the output shaft; When the connecting column is installed to the component of power output, the movable element can be pressed and move in the direction away from the installation cavity, so as to trigger the sensor, and the controller can reduce the output torque of the motor.

2. The extended shaft transmission protection switch of claim 1, wherein, The moving direction of the movable element is inclined to the axis direction of the connecting column.

3. The extended shaft transmission protection switch of claim 1, wherein, The axis direction of the movable element is inclined to the axis direction of the connecting column.

4. The extended shaft transmission protection switch of claim 1, wherein, The connecting column is provided with connecting section and power section, the output shaft is inserted into the power section, and the connecting section has the installation cavity.

5. The extended shaft transmission protection switch of claim 4, wherein, The axis direction of the movable element is inclined to the axis direction of the connecting column, and from the power section to the connecting section direction, the movable element extends from the outer wall of the connecting column to the installation cavity direction.

6. The extended shaft drive guard switch of claim 1, wherein, The outer wall of the connecting column is provided with fixing element, and one end of the movable element away from the installation cavity is elastically connected to the fixing element.

7. The extended shaft transmission protection switch of claim 1, wherein, The connecting column is provided with insertion slot, the movable element is inserted into the insertion slot, the insertion slot is provided with limiting table, the outer wall of the movable element is provided with protruding positioning part, the positioning part can be elastically pressed to the limiting table, and the limiting of the movable element is realized.

8. The extended shaft drive guard switch of claim 4, wherein, One end of the output shaft away from the installation cavity is provided with transmission gear, and one side wall of the transmission gear is slidably abutted to one end of the connecting column.

9. The extended shaft transmission protection switch of claim 8, wherein, The power section is provided with bearing between the end close to the output shaft and the transmission gear.

10. Blender characterized in that, The utility model relates to a kind of output shaft protection switch, including by any one of claims 1 to 9 described expansion axle drive protection switch, expansion axle drive protection switch includes connecting column, the connecting column has pivotally connected output shaft in it, wherein, including: Box, the connecting column is fixedly installed in the box, and one end of the connecting column away from the output shaft protrudes out of the box.

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