Blender

Abstract

The present invention relates to a food mixer. It comprises a base and a cup body, wherein a coaxially arranged forward-rotating knife group and a reverse-rotating knife group are arranged in the cup body, wherein the forward-rotating knife group is provided with a forward transmission shaft, and the reverse-rotating knife group is provided with a reverse transmission shaft, wherein the forward transmission shaft passes downward through the reverse transmission shaft body, and the reverse transmission shaft is installed on the forward transmission shaft through a first bearing, wherein the forward transmission shaft is provided with a forward transmission device, and the reverse transmission shaft is provided with a reverse transmission device, and the forward transmission device is located in the inner cavity of the reverse transmission device. The structural design of the present invention is simple and reasonable, the structure design of the mixing knife in the cup body is simple, and the sealing performance is good, the gear transmission structure in the base is simple, the operation is stable, no eccentric force is generated, the noise is small, the cost is reduced, and the failure rate is reduced, the forward-rotating knife group can rotate alone, and the forward-rotating knife group and the reverse-rotating knife group can also rotate simultaneously, the rotary cutting method is diverse, and the application range is wider.

Description

Technical Field

[0001] The invention relates to a food mixer. Background Art

[0002] The cup body of an existing food mixer generally includes an upper blade group and a lower blade group, which are installed on the same drive shaft. The rotation of the drive shaft drives the upper blade group and the lower blade group to rotate synchronously in the same direction. Although there are also some mixers that can rotate the upper blade group and the lower blade group asynchronously and in different directions, the cost is high due to the complex transmission structure, or the transmission gear group is prone to jamming and cannot be used. In addition, the upper blade group and the lower blade group of this mixer must rotate at the same time. Summary of the invention

[0003] Therefore, an object of the present invention is to provide a mixer with a simple structure, in which the forward-rotating blade group can rotate alone, or the forward-rotating blade group and the counter-rotating blade group can rotate simultaneously.

[0004] The object of the present invention is achieved in this way.

[0005] A blender comprises a base and a cup body, wherein a coaxially arranged forward-rotating knife group and a reverse-rotating knife group are provided in the cup body, wherein the forward-rotating knife group is provided with a forward transmission shaft, and the reverse-rotating knife group is provided with a reverse transmission shaft, wherein the forward transmission shaft passes downward through the reverse transmission shaft body, and the reverse transmission shaft is installed on the forward transmission shaft through a first bearing, wherein the forward transmission shaft is provided with a forward transmission device, and the reverse transmission shaft is provided with a reverse transmission device, wherein the forward transmission device is located in the inner cavity of the reverse transmission device.

[0006] A motor, a gear set, a forward drive and a reverse drive are arranged in the base. The motor directly drives the forward drive to rotate, and the motor drives the gear set to rotate at the same time. The gear set drives the reverse drive to rotate. The gear set simultaneously changes the rotation direction of the motor to the reverse direction, so that the forward drive and the reverse drive rotate in opposite directions. The forward drive is located in the reverse drive body, and the two are vertically coaxially arranged. The reverse drive is arranged above the gear set through a spring. The reverse drive is provided with a clutch pressure rod, and the outer end of the clutch pressure rod extends out of the base. The inner end of the clutch pressure rod can press the reverse drive to move downward to engage with the gear set and be driven to rotate by the gear set. The inner end of the clutch pressure rod rotates with the reverse drive, and the clutch pressure rod releases the reverse drive. The spring pushes the reverse drive away from the gear set, and the reverse drive does not rotate.

[0007] When the cup body is placed on the base for use, the forward transmission engages with the forward drive to achieve linkage, and the reverse transmission engages with the reverse drive. If the reverse drive is engaged with the gear set, the reverse transmission and the reverse drive are linked. If the reverse drive is separated from the gear set, the reverse transmission and the reverse drive are both stationary.

[0008] The above technical solution can be further improved as follows.

[0009] The gear set includes a driving gear, a ring gear and a planetary gear. The ring gear has a circle of internal teeth. The driving gear is fixedly installed in the middle of the driving shaft of the motor. The forward driver is installed at the top of the driving shaft. The planetary gear surrounds the driving gear. The planetary gear is arranged in the ring gear ring. The outer ring of the planetary gear meshes with the inner surface of the ring gear. The driving gear meshes and drives the planetary gear to rotate. The planetary gear drives the ring gear to rotate. The reverse driver is arranged on the top of the ring gear. The ring gear is installed on the driving shaft through a second bearing. The planetary gear rotates in opposite directions to the driving gear, and the planetary gear rotates in the same direction as the ring gear. The rotation of the driving shaft realizes the reverse driver and the forward driver to rotate in two different directions through the driving gear and the planetary gear.

[0010] The number of the planetary gears is 2-4.

[0011] The motor is also provided with a motor tray, and the planetary gears are mounted on the surface of the motor tray through planetary shafts.

[0012] The motor is also provided with a motor tray, and the clutch pressure rod is rotatably connected with the motor tray.

[0013] The clutch pressure rod is also provided with an elastic positioning device.

[0014] The elastic positioning device includes a return spring and a ball. The corresponding clutch pressure rod side wall is provided with an upper positioning hole and a lower positioning hole. When the clutch pressure rod rotates up and down, the ball is pushed into the corresponding upper positioning hole or lower positioning hole by the return spring to keep the clutch pressure rod stationary.

[0015] The rotational cooperation between the clutch pressure rod and the reverse driver means that a pressure rolling bearing is arranged in the reverse driver body, and the inner end of the clutch pressure rod is pressed on the surface of the pressure rolling bearing.

[0016] The structural design of the present invention is simple and reasonable. The stirring blade in the cup body has a simple structural design and good sealing performance. The gear transmission structure in the base is simple and runs smoothly. It does not generate eccentric force, has low noise, reduces costs, and reduces failure rate. The forward-rotating blade group can rotate alone, and the forward-rotating blade group and the reverse-rotating blade group can also rotate at the same time. The rotary cutting method is diverse and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the gear structure of an embodiment, in which the reverse drive is in rotation.

[0018] Figure 2 This is a schematic diagram of the gear structure of an embodiment, in which the reverse drive is disengaged.

[0019] Figure 3 for Figure 2 A top-down stereoscopic diagram.

[0020] Figure 4 for Figure 3 Schematic diagram of the decomposition of the invention, wherein a and b are bottom-up stereograms of the reverse drive and the ring gear respectively, and c is a schematic diagram of the other side of the clutch pressure rod.

[0021] Figure 5 This is a schematic diagram showing the structure of the forward rotating knife group and the reverse rotating knife group.

[0022] Figure 6 It is a schematic structural diagram of an embodiment. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment, in conjunction with the accompanying drawings, a blender comprises a base 1 and a cup body 2, wherein a coaxially arranged forward-rotating knife group 3 and a reverse-rotating knife group 4 are provided in the cup body 2. The forward-rotating knife group 3 is provided with a forward transmission shaft 5, and the reverse-rotating knife group 4 is provided with a reverse transmission shaft 6. The reverse transmission shaft 6 is mounted on the forward transmission shaft 5 through a first bearing 9, and the forward transmission shaft 5 passes downward through the body of the reverse transmission shaft 6. A forward transmission device 7 is provided at the bottom end of the forward transmission shaft 5, and a reverse transmission device 8 is fixed to the reverse transmission shaft 6. The forward transmission device 7 is located in the inner cavity of the reverse transmission device 8.

[0025] A motor 20, a gear set, a forward driver 21 and a reverse driver 22 are arranged in the base 1. The gear set includes a driving gear 23, a ring gear 24 and a planetary gear 25. The ring gear 24 has a circle of internal teeth 25. The driving gear 23 is fixedly mounted on the middle of the driving shaft 26 of the motor 20. The forward driver 21 is mounted on the top of the driving shaft 26. The motor directly drives the forward driver to rotate.

[0026] The planetary gear 25 surrounds the driving gear 23, and the planetary gear is arranged in the annular gear ring. The outer ring of the planetary gear meshes with the inner surface of the annular gear. The driving gear meshes and drives the planetary gear to rotate, and the planetary gear drives the annular gear to rotate. The motor 20 is also provided with a motor tray 27, and the planetary gear 25 is installed on the surface of the motor tray 27 through a planetary shaft 28.

[0027] The reverse drive 22 is arranged on the top of the ring gear 24, and the ring gear 24 is installed on the driving shaft 26 through the second bearing 29. The planetary gear rotates in the opposite direction to the driving gear, and the planetary gear rotates in the same direction as the ring gear. The rotation of the driving shaft realizes the reverse rotation of the ring gear through the driving gear and the planetary gear.

[0028] The reverse driver 22 is arranged above the ring gear 24 through a spring 30, and the forward driver 21 is located in the reverse driver 22 body. The two are arranged vertically coaxially, and the reverse driver and the forward driver rotate in two different directions. The reverse driver 22 is provided with a clutch pressure rod 31, the outer end of the clutch pressure rod 31 extends out of the base 1, the inner end of the clutch pressure rod can press the reverse driver to move downward and engage with the ring gear and be driven to rotate by the ring gear, and the inner end of the clutch pressure rod and the reverse driver are rotationally matched. The rotational match between the clutch pressure rod 31 and the reverse driver 21 refers to the pressure rolling bearing 32 being provided in the reverse driver 21 body. The inner end of the clutch pressure rod 31 presses on the surface of the pressure rolling bearing 32, the clutch pressure rod releases the reverse driver, and the spring 30 pushes the reverse driver away from the ring gear, and the reverse driver does not rotate.

[0029] When the cup body is placed on the base for use, the forward transmission engages with the forward drive to achieve linkage, and the reverse transmission engages with the reverse drive. If the reverse drive is engaged with the ring gear, the reverse transmission and the reverse drive are linked. If the reverse drive is separated from the ring gear, the reverse transmission and the reverse drive are both stationary.

[0030] The clutch pressure rod 31 is rotatably mounted on the motor tray 27, and is also provided with an elastic positioning device, which includes a reset spring 33 and a ball 34. The corresponding side wall of the clutch pressure rod 31 is provided with an upper positioning hole 35 and a lower positioning hole 36. When the clutch pressure rod rotates up and down, the ball is pushed into the corresponding upper positioning hole or lower positioning hole by the reset spring, so that the clutch pressure rod remains stationary.

Claims

1. A blender, comprising a base and a cup body, wherein the cup body is provided with a coaxially arranged forward-rotating blade group and a reverse-rotating blade group for bidirectional rotation, characterized in that: The forward-rotating knife group is provided with a forward transmission shaft, and the reverse-rotating knife group is provided with a reverse transmission shaft, the forward transmission shaft passes downward through the reverse transmission shaft body, the reverse transmission shaft is installed on the forward transmission shaft through a first bearing, the forward transmission shaft is provided with a forward transmission device, and the reverse transmission shaft is provided with a reverse transmission device, and the forward transmission device is located in the inner cavity of the reverse transmission device; A motor, a gear set, a forward drive and a reverse drive are arranged in the base. The motor directly drives the forward drive to rotate. The motor drives the gear set to rotate at the same time. The gear set drives the reverse drive to rotate. The gear set simultaneously changes the rotation direction of the motor to the reverse direction, so that the forward drive and the reverse drive rotate in opposite directions. The forward drive is located in the reverse drive body, and the two are vertically coaxially arranged. The reverse drive is arranged above the gear set through a spring. The reverse drive is provided with a clutch pressure rod. The outer end of the clutch pressure rod extends out of the base. The inner end of the clutch pressure rod can press the reverse drive to move downward to engage with the gear set and be driven to rotate by the gear set. The inner end of the clutch pressure rod rotates with the reverse drive. The clutch pressure rod releases the reverse drive, and the spring pushes the reverse drive away from the gear set, so that the reverse drive does not rotate. When the cup body is placed on the base for use, the forward transmission engages with the forward drive to achieve linkage, and the reverse transmission engages with the reverse drive. If the reverse drive is engaged with the gear set, the reverse transmission and the reverse drive are linked. If the reverse drive is separated from the gear set, the reverse transmission and the reverse drive are both stationary.

2. The mixer according to claim 1, characterized in that: The gear set includes a driving gear, a ring gear and a planetary gear. The ring gear has a circle of internal teeth. The driving gear is fixedly installed in the middle of the driving shaft of the motor. The forward driver is installed at the top of the driving shaft. The planetary gear surrounds the driving gear. The planetary gear is arranged in the ring gear ring. The outer ring of the planetary gear meshes with the inner surface of the ring gear. The driving gear meshes and drives the planetary gear to rotate. The planetary gear drives the ring gear to rotate. The reverse driver is arranged on the top of the ring gear. The ring gear is installed on the driving shaft through a second bearing. The planetary gear rotates in opposite directions to the driving gear, and the planetary gear rotates in the same direction as the ring gear. The rotation of the driving shaft realizes the reverse driver and the forward driver to rotate in two different directions through the driving gear and the planetary gear.

3. The mixer according to claim 2, characterized in that: The number of the planetary gears is 2-4.

4. The mixer according to claim 2, characterized in that: The motor is also provided with a motor tray, and the planetary gears are mounted on the surface of the motor tray through planetary shafts.

5. The mixer according to claim 1, characterized in that: The motor is also provided with a motor tray, and the clutch pressure rod is rotatably connected with the motor tray.

6. The mixer according to claim 1, characterized in that: The clutch pressure rod is also provided with an elastic positioning device.

7. The mixer according to claim 6, characterized in that: The elastic positioning device includes a return spring and a ball. The corresponding clutch pressure rod side wall is provided with an upper positioning hole and a lower positioning hole. When the clutch pressure rod rotates up and down, the ball is pushed into the corresponding upper positioning hole or lower positioning hole by the return spring to keep the clutch pressure rod stationary.

8. The mixer according to claim 1, characterized in that: The rotational cooperation between the clutch pressure rod and the reverse driver means that a pressure rolling bearing is arranged in the reverse driver body, and the inner end of the clutch pressure rod is pressed on the surface of the pressure rolling bearing.

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