Quick dismounting and mounting device for stirrer

Abstract

The rapid dismounting and mounting device comprises the stirrer and a transmission main shaft for mounting the stirrer, and is characterized in that an inserting groove with a lateral opening is formed in the end part of the transmission main shaft, and the head part of the stirrer is fixedly inserted into the inserting groove in the circumferential direction and the axial direction; and the end part of the transmission main shaft is sleeved with a lock sleeve for locking the head part of the stirrer in the inserting groove. According to the quick dismounting and mounting device for the stirrer, the stirrer and the transmission main shaft are connected in a lateral inserting manner, and meanwhile, the inserting head of the stirrer is locked in the inserting groove of the transmission main shaft through locking of the locking sleeve. In the whole disassembly and assembly process, the machine head and the material barrel do not need to be separated firstly, and disassembly and assembly of the stirrer can be rapidly completed from the side direction only by moving the lock sleeve. Compared with a traditional stirrer, due to the fact that a lifting mechanism of the material barrel or a head raising mechanism of the machine head does not need to be arranged, the stirrer is simpler in structure and lower in cost, the rigidity of a machine body can be remarkably improved, and machine faults are reduced.

Description

Technical Field

[0001] This invention relates to the field of mixer technology, specifically to a device that enables quick assembly and disassembly of the mixer. Background Technology

[0002] In traditional mixers used for mixing food, such as dough mixers and egg beaters, the connection between the mixer and the motor shaft is mostly threaded. Since the mixer is inserted into the mixing bowl, near the bottom, disassembling or assembling it requires separating the mixer from the bowl, either by raising the mixer head or lowering the mixing bowl to provide space for this process. This necessitates a mixing bowl lifting mechanism or a mixer head tilting mechanism in traditional mixers, resulting in a complex machine structure, more frequent malfunctions, reduced machine rigidity, and higher production costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device structure for a mixer that is simple in structure and allows for quick assembly and disassembly of the mixer.

[0004] The technical solution adopted to solve the above-mentioned technical problems is: a quick disassembly and assembly device for a stirrer, comprising a stirrer and a drive shaft for mounting the stirrer, characterized in that: the end of the drive shaft is formed with an insertion groove having a lateral opening, the head of the stirrer is circumferentially and axially fixedly inserted into the insertion groove, and the end of the drive shaft is fitted with a locking sleeve to lock the head of the stirrer in the insertion groove.

[0005] Based on the above, the side wall of the locking sleeve forms a notch that allows the stirrer head to be inserted laterally, and a positioning device is provided between the locking sleeve and the transmission main shaft to keep the notch of the locking sleeve offset from the lateral opening of the transmission main shaft.

[0006] Based on the above, the positioning device includes interlocking pins and slots respectively disposed on the side walls of the locking sleeve and the transmission spindle.

[0007] Based on the above, the inner wall of the drive spindle insertion slot and the outer wall of the agitator head are respectively provided with interlocking pins and insertion holes.

[0008] The beneficial effects of this invention are as follows: Because the quick-release device of this invention connects the agitator to the drive shaft via a lateral insertion, and simultaneously uses a locking sleeve to lock the agitator's connector into the drive shaft's insertion slot, the entire disassembly and assembly process does not require separating the machine head and the material tank beforehand; simply moving the locking sleeve allows for quick disassembly and assembly from the side. Compared to traditional agitators, because it eliminates the need for a material tank lifting mechanism or a machine head tilting mechanism, the agitator's structure is simpler, its cost is lower, and it significantly improves the rigidity of the machine body, reducing machine malfunctions. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the dough mixing bowl of the quick-assembly and disassembly device using the mixer of the present invention; Figure 2 This is a schematic diagram of the quick assembly / disassembly device for the stirrer of the present invention; Figure 3 This is a schematic diagram of the structure of the quick disassembly and assembly device for the stirrer of the present invention for disassembling the stirrer; Figure 4 This is a schematic diagram of the transmission spindle in this invention; Figure 5 This is a schematic diagram of the stirrer in this invention. Detailed Implementation

[0010] like Figure 1-5 As shown, a dough mixer is used as an example, with its mixer 1 being a spiral rod shape. The quick-release device for the mixer includes the mixer 1 and a drive shaft 2 for mounting the mixer 1. In this embodiment, the end of the drive shaft 2 has an insertion slot 2.1 with a lateral opening. The head 1.1 of the mixer 1 is circumferentially and axially fixedly inserted into the insertion slot 2.1. A locking sleeve 3 is fitted onto the end of the drive shaft 2 to lock the head 1.1 of the mixer 1 into the insertion slot 2.1. The circumferential and axial fixed insertion of the head 1.1 of the mixer 1 into the insertion slot 2.1 is a conventional design; the circumferential fixed insertion simply requires the head 1.1 of the mixer 1 to be a flat head shape that matches the shape of the insertion slot 2.1. Axial fixation can be achieved using conventional sidewall pin hole positioning or stepped positioning, both of which can achieve axial fixation of the mixer 1 after it is laterally inserted into the insertion slot 2.1. The locking sleeve 3 can slide up and down. Sliding the locking sleeve 3 upwards exposes the lateral insertion slot 2.1. At this point, the head 1.1 of the agitator 1 can be inserted into the insertion slot 2.1. Then, the locking sleeve 3 slides down, blocking the insertion slot 2.1, thus locking the head 1.1 of the agitator 1 inside the insertion slot 2.1, completing the installation of the agitator 1. Similarly, the agitator 1 can be disassembled. The entire disassembly and assembly process does not require separating the machine head 4 and the material tank 5 first; simply moving the locking sleeve 3 allows for quick disassembly and assembly from the side. Compared to traditional agitators, because it eliminates the need for a lifting mechanism for the material tank or a head-raising mechanism, the agitator structure is simpler, the cost is lower, and the rigidity of the machine body is significantly improved, reducing machine malfunctions. Of course, for the locking sleeve 3, which is locked in place by sliding, a conventional positioning device should also be provided to prevent the locking sleeve 3 from sliding further.

[0011] In actual operation, sliding the locking sleeve 3 upwards to expose the insertion slot 2.1 requires sliding a considerable distance to fully expose the insertion slot 2.1. This presents certain inconveniences in terms of operability and also increases the overall height of the machine, which is obviously undesirable for both manufacturers and users. Therefore, in this embodiment, a notch 3.1 is formed on the side wall of the locking sleeve 3 to allow the stirrer head 1.1 to be inserted laterally. A positioning device is provided between the locking sleeve 3 and the transmission shaft 2 to keep the notch 3.1 of the locking sleeve 3 offset from the lateral opening of the transmission shaft 2. This positioning device is a conventional design between sliding components, and this embodiment uses a snap-lock positioning. Specifically, the positioning device includes a snap-lock pin 2.2 and a slot 3.2 that are respectively provided on the side walls of the locking sleeve 3 and the transmission shaft 2 for mutual engagement. When assembling or disassembling the mixer 1, simply move the locking sleeve 3 slightly upwards so that the slot 3.2 disengages from the pin 2.2. Then, rotate the locking sleeve 3 until the notch 3.1 of the locking sleeve aligns with the insertion slot 2.1. The assembly or disassembly of the mixer 1 can then be easily completed. When the locking sleeve 3 is rotated until the slot 3.2 aligns with the pin 2.2, the locking sleeve 3 falls, the slot 3.2 engages the pin 2.2, and the side wall of the locking sleeve 3 blocks the insertion slot 2.1, locking the head 1.1 of the mixer 1 within the insertion slot 2.1. Because the distance required to move the locking sleeve 3 is greatly reduced, it not only facilitates the assembly or disassembly of the mixer but also effectively lowers the height of the mixer.

[0012] To ensure ease of manufacturing, the agitator 1 is axially fixed to the drive shaft 2 using pin holes. Specifically, the inner wall of the insertion slot 2.1 of the drive shaft 2 and the outer wall of the head 1.1 of the agitator 1 are respectively provided with interlocking pins 1.2 and insertion holes 2.3. When the head 1.1 of the agitator 1 is inserted into the insertion slot 2.1, the pin 1.2 is inserted into the insertion hole 2.3, thereby achieving axial fixation of the agitator 1.

Claims

1. A quick assembly / disassembly device for a stirrer, comprising a stirrer and a drive shaft for mounting the stirrer, characterized in that: The end of the drive shaft is formed with a lateral opening insert groove. The head of the stirrer is circumferentially and axially fixedly inserted into the insert groove. The end of the drive shaft is fitted with a locking sleeve to lock the head of the stirrer into the insert groove.

2. The quick assembly / disassembly device for the stirrer according to claim 1, characterized in that: The sidewall of the locking sleeve forms a notch that allows the stirrer head to be inserted laterally, and a positioning device is provided between the locking sleeve and the transmission main shaft to keep the notch of the locking sleeve offset from the lateral opening of the transmission main shaft.

3. The quick assembly / disassembly device for the agitator according to claim 1, characterized in that: The positioning device includes interlocking pins and slots respectively located on the side walls of the locking sleeve and the transmission main shaft.

4. The quick disassembly and assembly device for the stirrer according to any one of claims 1-3, characterized in that: The inner wall of the drive shaft insertion slot and the outer wall of the agitator head are respectively provided with interlocking pins and insertion holes.

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