Anti-falling blade shaft structure of food processor

Abstract

The utility model discloses a kind of positive and negative rotation anti-falling blade shaft structures of food processor, including motor, pin shaft and blade assembly, pin shaft is fixed in the output shaft of motor one end, blade assembly includes mounting head, blade and spring, blade is fixed on mounting head, mounting hole is equipped on mounting head, spring is sleeved in mounting hole, the lateral wall of mounting hole is equipped with mounting groove, the output shaft of motor one end is inserted into mounting hole, and it is abutted with spring, the both ends of pin shaft are matched with mounting groove. By being equipped with mounting groove on mounting head, pin shaft can be conveniently matched with mounting groove, the fixation of mounting head and motor output shaft is realized, and installation is convenient;Meanwhile, by being equipped with spring, it can act on the output shaft of motor, the axial position of mounting head on the output shaft of motor can be relatively fixed, prevent blade assembly from loosening and falling off when rotating, so that the positive rotation and reverse rotation blade assembly of blade assembly can be tightly matched and fixed, achieve safe and reliable effect, and installation is convenient.

Description

Technical Field

[0001] This utility model relates to an important component of a food processor, and in particular to a forward and reverse anti-detachment blade shaft structure for a food processor. Background Technology

[0002] Common kitchen appliances such as food processors, blenders, and soy milk makers process food through the rotation of blades. However, current methods of connecting the blades to the motor shaft are mostly one-way screw-on types, such as threaded tightening or simple pin-and-buckle connections. These two types of structures have the following obvious defects and shortcomings: The threaded tightening structure, similar to the principle of a nut and bolt, means that the blade assembly can only be tightened when it rotates in one direction. If the motor rotates in the opposite direction, the blade assembly is at risk of loosening. This greatly limits the function of the motor and makes it impossible to achieve a forward and reverse rotation working mode. Forward and reverse rotation helps to break up food fibers, prevent food from tangling, and improve the efficiency and effect of cell wall breaking. At the same time, when the blade assembly needs to be cleaned, a lot of force is required to loosen it, which is inconvenient to operate.

[0003] Although the simple pin-and-latch structure can rotate in both directions, its connection usually has axial clearance. When the machine is running at high speed, especially when the load changes suddenly or vibration occurs, the blade assembly is prone to loosening or even popping off the motor shaft, which poses a safety hazard and may also damage the machine. Summary of the Invention

[0004] The purpose of this invention is to provide a forward and reverse anti-detachment blade shaft structure for a food processor that can solve at least one of the above problems.

[0005] According to one aspect of the present invention, a forward and reverse anti-detachment blade shaft structure for a food processor is provided, comprising a motor, a pin shaft, and a blade assembly. The pin shaft is fixed to one end of the output shaft of the motor. The blade assembly includes a mounting head, a blade, and a spring. The blade is fixed to the mounting head, which has a mounting hole. The spring is sleeved in the mounting hole, and the side wall of the mounting hole has a mounting groove. One end of the output shaft of the motor extends into the mounting hole and abuts against the spring. Both ends of the pin shaft cooperate with the mounting groove.

[0006] The beneficial effects of this utility model are as follows: by providing an installation groove on the mounting head, the pin shaft can be easily matched with the installation groove to fix the mounting head to the motor output shaft, making installation convenient; at the same time, by providing a spring, it can act on the motor output shaft to relatively fix the axial position of the mounting head on the motor output shaft, preventing the blade assembly from loosening and falling off during rotation, so that the blade assembly can be tightly matched and fixed in both forward and reverse rotation, achieving a safe and reliable effect and convenient installation.

[0007] In some embodiments, there are two mounting slots, and the two ends of the pin mate with the two mounting slots respectively. This facilitates the installation of the pin on the mounting head, making installation quick and easy.

[0008] In some embodiments, the mounting groove includes a first vertical groove, a horizontal groove, and a second vertical groove. The two ends of the horizontal groove are respectively connected to one end of the first vertical groove and one end of the second vertical groove. The other end of the first vertical groove passes through the bottom end of the mounting head. Thus, the pin can be inserted from the first vertical groove, and after passing through the horizontal groove, it can be engaged in the second vertical groove, facilitating the engagement of the pin with the mounting groove. This makes the entire blade assembly easy to install, disassemble, and clean.

[0009] In some embodiments, the first vertical groove and the second vertical groove are both located on the same side of the horizontal groove, and the first vertical groove and the second vertical groove are arranged parallel to each other. Both ends of the pin pass through the second vertical groove on both sides. Thus, by facilitating the engagement of the pin with the second vertical groove, relative fixation with the mounting head is achieved.

[0010] In some embodiments, the mounting groove includes an inclined groove, a guide groove, and a third vertical groove. The guide groove is connected to the top end of the inclined groove, and the third vertical groove is connected to the bottom end of the guide groove. The bottom end of the inclined groove passes through the bottom end of the mounting head, and both ends of the pin pass through the inclined groove, guide groove, and third vertical groove on both sides, respectively. Thus, the inclined groove allows the pin to move along it during insertion, and the guide groove guides the pin downwards into the third vertical groove, achieving a fit between the pin and the mounting groove, making the installation and disassembly of the entire blade assembly convenient.

[0011] In some implementations, the outer diameter of one end of the motor's output shaft matches the inner diameter of the mounting hole. This facilitates the insertion of the motor's output shaft into the mounting hole and allows the spring to be compressed.

[0012] In some embodiments, the top of the mounting head is provided with a mounting post, and the blade is fixed to the mounting post. Thus, the mounting post facilitates the installation of the blade. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the forward and reverse anti-detachment blade shaft structure of the food processor of this utility model; Figure 2 This is a cross-sectional view of the forward and reverse anti-detachment blade shaft structure of the food processor of this utility model; Figure 3 This is a schematic diagram of the mounting head in the forward and reverse anti-detachment blade shaft structure of the food processor of this utility model; Figure 4 This is a schematic diagram of another embodiment of the forward and reverse anti-detachment blade shaft structure of the food processor of this utility model; Figure 5This is a schematic diagram of the mounting head in another embodiment of the forward and reverse anti-detachment blade shaft structure of the food processor of this utility model. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] Reference Figures 1-3 The food processor's forward and reverse anti-detachment blade shaft structure includes a motor 1, a pin 2, and a blade assembly 3. The pin 2 is fixed to one end of the output shaft 11 of the motor 1. The blade assembly 3 includes a mounting head 31, a blade 32, and a spring 33. The blade 32 is fixed to the mounting head 31, which has a mounting hole 311. The spring 33 is fitted into the mounting hole 311, and the side wall of the mounting hole 311 has a mounting groove 312. One end of the output shaft of the motor 1 extends into the mounting hole 311 and abuts against the spring 33. Both ends of the pin 2 cooperate with the mounting groove 312. The outer diameter of the spring 33 is the same as the inner diameter of the mounting hole 311, allowing the spring 33 to be securely held within the mounting hole 311. In actual use, to improve the stability of the spring 33 within the mounting hole 311, the end of the spring 33 that abuts against the mounting hole 311 is welded and fixed within the mounting hole 311. The motor 1 is the same type of motor found in existing food processors.

[0016] There are two mounting slots 312, and the two ends of the pin 2 are respectively engaged with the two mounting slots 312. After the two ends of the pin 2 extend out of the output shaft of the motor 1, they are inserted into the mounting slots 312 on both sides. Through the engagement of the pin 2 and the mounting slots 312, the engagement between the motor output shaft and the mounting head 31 is realized, that is, the blade assembly 3 is installed on the output shaft 11 of the motor 1, which facilitates the motor output shaft to drive the blade assembly 3 to rotate.

[0017] In one embodiment, the mounting groove 312 includes a first vertical groove 3121, a horizontal groove 3122, and a second vertical groove 3123. The two ends of the horizontal groove 3122 are respectively connected to one end of the first vertical groove 3121 and one end of the second vertical groove 3123. The other end of the first vertical groove 3121 passes through the bottom end of the mounting head 31.

[0018] The first vertical groove 3121 and the second vertical groove 3123 are both located on the same side of the horizontal groove 3122. The first vertical groove 3121 and the second vertical groove 3123 are arranged in parallel. The two ends of the pin 2 pass through the second vertical groove 3123 on both sides.

[0019] When the motor output shaft 11 and the blade assembly 3 are installed, the first vertical grooves 3121 on both sides of the mounting head 31 are aligned with the two ends of the pin 2, and then inserted, compressing the spring 33. When the pin 2 is inserted to the junction of the first vertical groove 3121 and the horizontal groove 3122, the mounting head 31 is rotated so that the pin 2 rotates into the horizontal groove 3122, and then rotates to the second vertical groove 3123. When the pin 2 moves to the second vertical groove 3123, under the rebound force of the spring 33, the mounting head 31 is pushed, so that the pin 2 is pressed against the bottom end of the second vertical groove 3123, tightening the pin 2. Under the combined action of the spring 33 and the second vertical groove 3123, the pin 2 is limited and fixed, thereby fixing the mounting head 31 on the motor output shaft, that is, fixing the entire blade assembly 3 on the motor output shaft, making installation convenient and quick.

[0020] Once the blade assembly 3 is fixed on the output shaft of the motor, the motor rotates forward or backward. The output shaft of the motor drives the blade assembly 3 to rotate forward or backward, which facilitates the forward or reverse rotation of the blade 32, helps to break up food fibers, avoids food tangling, and improves the efficiency and effect of cell wall breaking.

[0021] Conversely, when the blade assembly 3 needs cleaning, an external force is applied to the blade assembly 3, pressing it down and rotating it in the opposite direction, causing the pin 2 to move relative to the direction of the second vertical groove 3123, the horizontal groove 3122 and the first vertical groove 3121, until the pin 2 comes out from the bottom end of the first vertical groove 3121, thus separating the blade assembly 3 from the motor output shaft, thereby realizing the disassembly of the blade assembly, which is convenient for cleaning and disassembly.

[0022] like Figure 4 and Figure 5 As shown, in another embodiment, the mounting groove 312 may include an inclined groove 3124, a guide groove 3125 and a third vertical groove 3126. The guide groove 3125 is connected to the top end of the inclined groove 3124, and the third vertical groove 3126 is connected to the bottom end of the guide groove 3125. The bottom end of the inclined groove 3124 passes through the bottom end of the mounting head 31, and both ends of the pin 2 pass through the inclined groove 3124, the guide groove 3125 and the third vertical groove 3126 on both sides respectively.

[0023] When the motor output shaft 11 and the blade assembly 3 are installed, the inclined grooves 3124 on both sides of the mounting head 31 are aligned with the two ends of the pin 2, and then inserted. When the pin 2 is inserted, it moves along the inclined groove 3124, compressing the spring 33. When the pin 2 is inserted to the junction of the inclined groove 3124 and the guide groove 3125, the pin 2 moves under the guidance of the guide groove 3125 and moves downward into the third vertical groove 3126. When the pin 2 moves to the third vertical groove 3126, under the rebound force of the spring 33, it pushes the mounting head 31, pressing the pin 2 against the bottom end of the third vertical groove 3126, thus tightening the pin 2. Under the combined action of the spring 33 and the third vertical groove 3126, the pin 2 is limited and fixed, thereby fixing the mounting head 31 on the motor output shaft, that is, fixing the entire blade assembly 3 on the motor output shaft, making installation convenient and quick.

[0024] Conversely, when the blade assembly 3 needs cleaning, an external force is applied to the blade assembly 3, pressing it downwards, causing the pin 2 to move from the third vertical groove 3126 into the guide groove 3125. Under the guidance of the guide groove 3125, it is gradually guided into the inclined groove 3124, and finally the pin 2 moves from the bottom along the inclined groove 3124 and comes out, realizing the separation of the blade assembly 3 from the motor output shaft, thereby realizing the disassembly of the blade assembly, which is convenient for cleaning and disassembly.

[0025] The outer diameter of one end of the output shaft of motor 1 is consistent with the inner diameter of the mounting hole 311, so that the mounting hole 311 and the output shaft of motor are tightly fitted. Therefore, the mounting head 31 is prevented from shaking when the output shaft of motor 1 is rotated, and the vibration of the blade assembly 3 is reduced when it rotates.

[0026] The top of the mounting head 31 has an integrally formed mounting post 313, on which the blade 32 is fixed. The blade 32 consists of multiple blades, each with a through hole, which allows it to be fitted and fixed onto the mounting post 313. To improve the stability of the blade 32 on the mounting post 313, a threaded hole is formed along the axial direction at the top of the mounting post 313. An external screw can be tightened into this threaded hole. The outer diameter of the larger end of the screw is larger than the inner diameter of the through hole on the blade 32. The larger end of the screw can limit the movement of the blade 32, ensuring its stability on the mounting head 31.

[0027] The food processor of this invention features a forward and reverse anti-detachment blade shaft structure. Through the cooperation of the pin 2 and the mounting groove 312, the structure is simple and facilitates the quick assembly and disassembly of the blade assembly 3. At the same time, when the output shaft of the motor drives the blade assembly 3 to rotate forward and reverse, the blade assembly 3 is firmly connected to the output shaft 11, which facilitates the forward and reverse rotation of the blade and is beneficial for food processing.

[0028] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A food processor's forward and reverse anti-detachment blade shaft structure, characterized in that, The device includes a motor (1), a pin (2), and a blade assembly (3). The pin (2) is fixed to one end of the output shaft of the motor (1). The blade assembly (3) includes a mounting head (31), a blade (32), and a spring (33). The blade (32) is fixed on the mounting head (31). The mounting head (31) has a mounting hole (311). The spring (33) is fitted into the mounting hole (311). The side wall of the mounting hole (311) has a mounting groove (312). One end of the output shaft of the motor (1) extends into the mounting hole (311) and abuts against the spring (33). Both ends of the pin (2) cooperate with the mounting groove (312).

2. The anti-detachment blade shaft structure for the food processor according to claim 1, characterized in that, There are two mounting slots (312), and the two ends of the pin (2) are respectively engaged with the two mounting slots (312).

3. The anti-detachment blade shaft structure for the food processor according to claim 2, characterized in that, The mounting groove (312) includes a first vertical groove (3121), a horizontal groove (3122), and a second vertical groove (3123). The two ends of the horizontal groove (3122) are respectively connected to one end of the first vertical groove (3121) and one end of the second vertical groove (3123). The other end of the first vertical groove (3121) passes through the bottom end of the mounting head (31).

4. The anti-detachment blade shaft structure for the food processor according to claim 3, characterized in that, The first vertical groove (3121) and the second vertical groove (3123) are both located on the same side of the horizontal groove (3122). The first vertical groove (3121) and the second vertical groove (3123) are arranged in parallel. The two ends of the pin (2) pass through the second vertical groove (3123) on both sides.

5. The anti-detachment blade shaft structure for the food processor according to claim 2, characterized in that, The mounting groove (312) includes an inclined groove (3124), a guide groove (3125), and a third vertical groove (3126). The guide groove (3125) is connected to the top end of the inclined groove (3124), and the third vertical groove (3126) is connected to the bottom end of the guide groove (3125). The bottom end of the inclined groove (3124) passes through the bottom end of the mounting head (31). The two ends of the pin (2) pass through the inclined groove (3124), the guide groove (3125), and the third vertical groove (3126) on both sides, respectively.

6. The forward and reverse anti-detachment blade shaft structure of the food processor according to any one of claims 1 to 5, characterized in that, The outer diameter of one end of the output shaft of the motor (1) is consistent with the inner diameter of the mounting hole (311).

7. The forward and reverse anti-detachment blade shaft structure of the food processor according to claim 6, characterized in that, The top of the mounting head (31) is provided with a mounting post (313), and the blade (32) is fixed on the mounting post (313).

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