Head raising mechanism of a kitchen machine and kitchen machine

Abstract

The utility model discloses a kind of lifting mechanism of chef machine and chef machine, it is related to chef machine technical field.The lifting mechanism of chef machine includes base, machine head, first elastic member, locking assembly and unlocking assembly, machine head is rotatably connected with base;First elastic member is arranged in one end of machine head and base rotatable connection, first elastic member is used to drive machine head to rotate relative to base to make machine head lift;Locking assembly includes positioning member and guide piece, the side of guide piece towards positioning member is provided with notch, notch can be connected with positioning member, to lock machine head in base;Unlocking assembly includes rotating member rotatably arranged in base, the end of rotating member towards guide piece is provided with first protruding part, first protruding part is eccentric to the rotation axis of rotating member and is arranged, first protruding part is used to push guide piece to rotate in the direction away from positioning member, to make notch disengage from positioning member.The technical scheme provided by the utility model improves the operation convenience of lifting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of food processors, and in particular to a lifting mechanism for a food processor and a food processor. Background Technology

[0002] A stand mixer is a multi-functional tool widely used in kitchens and the baking industry. It integrates functions such as mixing, slicing, and chopping, greatly improving the efficiency of cooking and baking. During use, the mixer head usually needs to be tilted and locked relative to the base to facilitate changing mixing utensils or removing the mixing bowl.

[0003] Existing food processors typically use gear sets to quickly lock and lift the head. While this mechanism can effectively achieve both lifting and locking, it requires significant force and is not convenient to use. Utility Model Content

[0004] The main purpose of this utility model is to propose a lifting mechanism for a food processor and a food processor in general, aiming to improve the ease of operation of the lifting mechanism.

[0005] To achieve the above objectives, the present invention provides a lifting mechanism for a food processor, comprising: Base; The machine head is rotatably connected to the base; A first elastic element is disposed at one end where the machine head and the base are rotatably connected. The first elastic element is used to drive the machine head to rotate relative to the base so that the machine head is lifted. A locking assembly includes a positioning element and a guide element. The positioning element is fixed to the base. One end of the guide element is rotatably disposed on the machine head, and the other end of the guide element extends movably into the base. The guide element has a notch on its side facing the positioning element, and the notch can engage with the positioning element to lock the machine head to the base. The unlocking component includes a rotating member rotatably mounted on the base. The rotating member has a first protrusion at one end facing the guide member. The first protrusion is eccentrically positioned to the rotation axis of the rotating member. The first protrusion is used to push the guide member to rotate away from the positioning member, so that the notch disengages from the positioning member.

[0006] In one embodiment, the guide includes: A guide plate, rotatably mounted on the machine head and extending into the base, the guide plate having the notch; and An abutment plate is provided on the side of the guide plate facing the rotating member. The abutment plate and the notch are arranged parallel to each other at intervals. The first protrusion can rotate away from the positioning member to push against the abutment plate.

[0007] In one embodiment, the locking component further includes: A limiting protrusion is provided on the side of the guide plate facing the rotating member. The limiting protrusion is located at the end of the guide plate away from the machine head. The limiting protrusion is used to abut against the first protrusion to restrict the end of the guide member away from the machine head to the base.

[0008] In one embodiment, the locking component further includes: A second elastic element is provided at the machine head to drive the guide element to abut against the positioning element.

[0009] In one embodiment, the second elastic element is configured as a first torsion spring, the machine head is provided with a mounting shaft, the first torsion spring is sleeved on the mounting shaft, the first torsion spring has a first torsion arm and a second torsion arm, the first torsion arm abuts against the inner wall of the machine head, and the second torsion arm abuts against the side of the guide member away from the positioning member.

[0010] In one embodiment, the guide member has two notches spaced apart on the side near the positioning member, and the positioning member can engage with either of the notches.

[0011] In one embodiment, the rotating member includes: A rotating handle is rotatably mounted on the base and exposed outside the base; A drive shaft, one end of which is fixed to the rotating handle; and A rotating seat is fixed to the other end of the transmission shaft and coaxially arranged with the transmission shaft. The rotating seat is provided with the first protrusion.

[0012] In one embodiment, the unlocking component further includes: A second torsion spring is movably sleeved on the outer periphery of the drive shaft and located on the side of the rotating seat opposite to the guide member. The second torsion spring has a third torsion arm and a fourth torsion arm, and the rotating seat is connected to the third torsion arm. A fixing member is fixed to the base and located on the side of the second torsion spring facing away from the rotating seat, and the fixing member is connected to the fourth torsion arm.

[0013] In one embodiment, the fixing member has an annular groove and a limiting part on the side facing away from the second torsion spring. The annular groove is arranged around the drive shaft, and the limiting part is provided in the annular groove. The rotating handle has an extension that extends into the annular groove. The extension can abut against the limiting part to limit the rotation stroke of the rotating handle.

[0014] This utility model also proposes a food processor, including a lifting mechanism as described in any of the above embodiments.

[0015] The technical solution of this utility model involves setting a base, a machine head, a first elastic element, a locking component, and an unlocking component in the lifting mechanism of a food processor. The machine head is rotatably connected to the base. The first elastic element is located at the rotatably connected end of the machine head and the base, and is used to drive the machine head to rotate relative to the base to lift the machine head. The locking component includes a positioning element and a guide element. The positioning element is fixed to the base, one end of the guide element is rotatably located on the machine head, and the other end of the guide element extends movably into the base. The guide element has a notch on the side facing the positioning element, which can engage with the positioning element to lock the machine head to the base. The unlocking component includes a rotating element rotatably located on the base. The rotating element has a first protrusion on the end facing the guide element. The first protrusion is eccentrically located on the rotation axis of the rotating element and is used to push the guide element to rotate away from the positioning element, so that the notch disengages from the positioning element. Compared to existing gear-based lifting mechanisms, this invention features a positioning component, a guide component, and a rotating component. The guide component has a notch to engage with the positioning component, locking the machine head to the base for easy operation. The rotating component has a first protrusion that pushes the guide component away from the positioning component during rotation, disengaging the notch. When the notch disengages, the machine head is lifted relative to the base under the drive of a first elastic component. This improves the ease of operation of the lifting mechanism. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a structure of an embodiment of the head-up mechanism of the food processor provided by this utility model; Figure 2 for Figure 1 A schematic diagram of the internal structure of one embodiment; Figure 3 for Figure 1 A schematic diagram of the internal structure of another embodiment; Figure 4 for Figure 3 An enlarged view of an embodiment at point A; Figure 5 for Figure 4 A schematic diagram of one embodiment of the first torsion spring; Figure 6 for Figure 3 A partially exploded view of one embodiment of the unlocking component; Figure 7 for Figure 1 A partial cross-sectional view of one embodiment.

[0018] Explanation of icon numbers: 100. Base; 110. Connecting bracket; 120. Connecting shaft; 130. First elastic element; 200. Machine head; 210. Mounting base; 211. Mounting shaft; 212. Limiting component; 310. Positioning component; 320. Guide plate; 321. Notch; 3211. Working lock; 3212. Lifting lock; 330. Abutment plate; 340. Positioning shaft; 350. First torsion spring; 351. First torsion arm; 352. Second torsion arm; 360. Limiting protrusion; 400. Unlocking component; 410. Rotating seat; 411. First protrusion; 412. Second protrusion; 420. Drive shaft; 430. Rotating handle; 431. Handle head; 432. Handle rod; 4321. Extension; 440. Second torsion spring; 441. Third torsion arm; 442. Fourth torsion arm; 450. Fixing member; 451. Third protrusion; 452. Annular groove; 453. Limiting part; 460. Limiting ring.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] A stand mixer is a multi-functional tool widely used in kitchens and the baking industry. It integrates functions such as mixing, slicing, and chopping, greatly improving the efficiency of cooking and baking. During use, the mixer head usually needs to be tilted and locked relative to the base to facilitate changing mixing utensils or removing the mixing bowl.

[0024] Existing food processors typically use gear sets to quickly lock and lift the head. While this mechanism can effectively achieve both lifting and locking, it requires significant force and is not convenient to use.

[0025] This utility model proposes a lifting mechanism for a food processor to improve the ease of operation of the lifting mechanism.

[0026] Please see Figures 1 to 4 In one embodiment, the lifting mechanism of the food processor includes a base 100, a head 200, a first elastic member 130, a locking component, and an unlocking component 400. The head 200 is rotatably connected to the base 100. The first elastic member 130 is disposed at one end of the head 200 and the base 100, and is used to drive the head 200 to rotate relative to the base 100 to lift the head 200. The locking component includes a positioning member 310 and a guide member. The positioning member 310 is fixed to the base 100, and one end of the guide member is rotatably disposed on the head 200. The other end of the guide extends into the base 100. The guide has a notch 321 on the side facing the positioning member 310. The notch 321 can engage with the positioning member 310 to lock the head 200 to the base 100. The unlocking component 400 includes a rotating member rotatably disposed on the base 100. The end of the rotating member facing the guide has a first protrusion 411. The first protrusion 411 is eccentric to the rotation axis of the rotating member. The first protrusion 411 is used to push the guide to rotate away from the positioning member 310 so that the notch 321 disengages from the positioning member 310.

[0027] The base 100 provides support and a mounting base for the machine head 200. Specifically, the base 100 has a first cavity inside, and the machine head 200 has a second cavity inside, which communicates with the first cavity. The machine head 200 has a positioning end and a movable end. The positioning end of the machine head 200 is rotatably connected to one end of the base 100 via a connecting shaft 120 and a connecting bracket 110. The connecting shaft 120 is located in the first cavity, and both ends of the connecting shaft 120 are fixed to the base 100. Both ends of the connecting bracket 110 are rotatably connected to the connecting shaft 120. The machine head 200 is fixed to the side of the connecting bracket 110 facing away from the base 100. The connecting bracket 110 rotates relative to the connecting shaft 120 to drive the rotation of the machine head 200 relative to the base 100, causing the movable end of the machine head 200 to move away from or closer to the base 100.

[0028] The first elastic element 130 is used to drive the machine head 200 to lift relative to the base 100. Specifically, in one embodiment, the first elastic element 130 is configured as a double torsion spring, which is sleeved on the connecting shaft 120. The double torsion spring has one parallel arm and two single torsion arms. The parallel arm abuts against the cavity wall of the first cavity, and the two single torsion arms abut against the side of the connecting bracket 110 facing the movable end, so as to drive the connecting bracket 110 to move away from the movable end, thereby moving the movable end away from the base 100 and lifting the machine head 200. Further, each end of the side of the connecting bracket 110 facing the movable end is provided with a slot, and the two single torsion arms are respectively engaged in the slots to prevent the double torsion spring from moving axially along the connecting shaft 120. In one embodiment, the first elastic element 130 may also be configured as a single torsion spring, which is not limited here. The preferred embodiment of the first elastic element 130 is configured as a double torsion spring, which can improve the structural stability and make the rotation of the machine head 200 relative to the base 100 more stable.

[0029] The locking assembly is used to lock the machine head 200 to the base 100. Specifically, one end of the guide member is rotatably disposed in the second cavity via the positioning shaft 340 and located at the movable end of the machine head 200. The other end of the guide member extends into the first cavity and has a notch 321. The positioning member 310 is disposed in the first cavity and located on the side of the guide member away from the positioning end. The guide member has a tendency to rotate around the positioning shaft 340 in the direction away from the positioning end, so that the notch 321 can engage with the positioning member 310 and the opening wall of the notch 321 abuts against the positioning member 310, thereby stably locking the movable end of the machine head 200 to the base 100. The positioning member 310 is fixed to the base 100. The positioning member 310 can be a positioning protrusion or a positioning shaft 340, etc., and there is no limitation here.

[0030] The unlocking component 400 is used to unlock the locking component so that the head 200 can rotate relative to the base 100. Specifically, the rotating member is rotatably disposed on the base 100 and partially extends into the first cavity to be close to the guide member. The first protrusion 411 is eccentrically disposed on the rotation axis of the rotating member and located on the side of the rotation axis close to the positioning member 310. The first protrusion 411 extends to the side of the guide member facing the positioning member 310, so that the first protrusion 411 can be displaced when the rotating member rotates to push against the guide member.

[0031] In the initial state, i.e., the working state, the machine head 200 is locked to the base 100, and the first protrusion 411 has a gap with the guide member. When it is necessary to lift the machine head 200, the part of the rotating member exposed on the base 100 is rotated, and the first protrusion 411 can rotate away from the positioning member 310 to push the guide member to rotate away from the positioning member 310 and closer to the positioning end, so that the notch 321 disengages from the positioning member 310. After the notch 321 disengages from the positioning member 310, the rotating member is reset, the guide member loses its pushing force and abuts against the positioning member 310. At this time, driven by the first elastic member 130, the guide member can move along the positioning member 310 away from the base 100, so that the movable end of the machine head 200 is lifted relative to the base 100. When it is necessary to return to the initial state, the machine head 200 is pressed down, so that the guide member moves along the positioning member 310 towards the base 100 until the notch 321 engages with the positioning member 310, thus achieving locking.

[0032] The technical solution of this utility model involves setting a base 100, a machine head 200, a first elastic element 130, a locking component, and an unlocking component 400 in the lifting mechanism of a food processor. The machine head 200 is rotatably connected to the base 100. The first elastic element 130 is located at one end of the machine head 200 and the base 100, and is used to drive the machine head 200 to rotate relative to the base 100 to lift the machine head 200. The locking component includes a positioning element 310 and a guide element. The positioning element 310 is fixed to the base 100, and one end of the guide element is rotatably located on the machine head. 200, the other end of the guide extends movably into the base 100, and the guide has a notch 321 on the side facing the positioning member 310. The notch 321 can engage with the positioning member 310 to lock the machine head 200 to the base 100; the unlocking component 400 includes a rotating member rotatably disposed on the base 100. The end of the rotating member facing the guide has a first protrusion 411. The first protrusion 411 is eccentrically disposed on the rotation axis of the rotating member. The first protrusion 411 is used to push the guide to rotate away from the positioning member 310 so that the notch 321 disengages from the positioning member 310. Compared to the gear-driven lifting mechanism in existing technologies, the present invention features a positioning component 310, a guide component, and a rotating component. The guide component has a notch 321 to engage with the positioning component 310, locking the machine head 200 to the base 100 for easy operation. The rotating component has a first protrusion 411 that pushes the guide component away from the positioning component 310 during rotation, causing the notch 321 to disengage from the positioning component 310. When the notch 321 disengages from the positioning component 310, the machine head 200 can be lifted relative to the base 100 under the drive of the first elastic component 130. This improves the ease of operation of the lifting mechanism.

[0033] Please see Figures 2 to 4 In one embodiment, the guide includes a guide plate 320 and an abutment plate 330. The guide plate 320 is rotatably mounted on the head 200 and extends into the base 100. The guide plate 320 has a notch 321. The abutment plate 330 protrudes from the guide plate 320 on the side facing the rotating member. The abutment plate 330 and the notch 321 are arranged parallel and spaced apart. The first protrusion 411 can rotate in a direction away from the positioning member 310 to push against the abutment plate 330.

[0034] Specifically, the machine head 200 is provided with two mounting plates located within the second cavity. Both ends of the positioning shaft 340 are fixed to one mounting plate. The cavity wall of the second cavity has a through hole communicating with it, located between the two mounting plates. One end of the guide plate 320 extends into the second cavity through the through hole and is rotatably sleeved on the positioning shaft 340. The other end of the guide plate 320 extends into the base 100. The guide plate 320 has a notch 321 on the side facing the positioning member 310. An abutment plate 330 is located on the portion of the guide plate 320 extending into the base 100 and on the side of the notch 321 away from the positioning member 310. The abutment plate 330 protrudes from the guide plate 320 so that the first protrusion 411 extends to the side of the abutment plate 330 facing the positioning member 310, allowing the first protrusion 411 to push against the positioning plate. The end of the abutment plate 330 away from the head 200 extends to the end of the guide plate 320 away from the head 200, ensuring that when the head 200 is raised or locked, the rotation of the rotating component allows the first protrusion 411 to push against the abutment plate 330, thus ensuring the normal operation of the unlocking function. The first protrusion 411 does not contact the guide plate 320 to avoid obstructing its movement; and in the initial state, the first protrusion 411 and the abutment plate 330 have a gap and are only in contact to avoid applying force to the abutment plate 330. Furthermore, both the guide plate 320 and the abutment plate 330 have curved surfaces facing the positioning plate to guide the rotation of the head 200 around the connecting shaft 120.

[0035] When the machine head 200 needs to be lifted, rotating the rotating component causes the first protrusion 411 to push against the abutment plate 330, causing the guide plate 320 to rotate in a direction away from the positioning component 310 and closer to the positioning end, thus disengaging the notch 321 from the positioning component 310. After the notch 321 disengages from the positioning component 310, the rotating component resets, the abutment plate 330 loses its pushing force, and the guide plate 320 abuts against the positioning component 310. At this time, driven by the first elastic component 130, the guide plate 320 can move along the positioning component 310 in a direction away from the base 100, causing the movable end of the machine head 200 to be lifted relative to the base 100. When returning to the initial state, pressing down the machine head 200 causes the guide plate 320 to move along the positioning component 310 in a direction closer to the base 100 until the notch 321 engages with the positioning component 310, achieving locking.

[0036] In the technical solution of this utility model embodiment, by setting the guide plate 320 and the abutment plate 330, the locking position and the unlocking position can be distinguished, avoiding the first protrusion 411 from being accidentally stuck into the notch 321 and causing unlocking failure. In addition, the abutment plate 330 can guide the rotation of the machine head 200 relative to the base 100, improving the reliability of the head-raising mechanism.

[0037] Please see Figures 2 to 4In one embodiment, the locking assembly further includes a limiting protrusion 360 protruding from the guide plate 320 on the side facing the rotating member. The limiting protrusion 360 is located at the end of the guide plate 320 away from the head 200. The limiting protrusion 360 is used to abut against the first protrusion 411 to restrict the end of the guide member away from the head 200 to the base 100.

[0038] Since the end of the abutment plate 330 away from the head 200 extends to the end of the guide plate 320 away from the head 200, in the event of accidental contact or excessive operation of the rotating component, the abutment plate 330 may easily move along the first protrusion 411 and detach from the first protrusion 411, causing the end of the guide component away from the head 200 to detach from the base 100, affecting the reuse of the unlocking and locking functions. Therefore, a limiting protrusion 360 needs to be provided at the end of the guide plate 320 away from the head 200 to prevent the guide component from detaching from the base 100.

[0039] Specifically, the limiting protrusion 360 is located on the side of the abutment plate 330 facing the positioning member 310, so as to abut against the side of the first protrusion 411 facing away from the machine head 200. The limiting protrusion 360 can be a protrusion or a limiting bolt, etc., and there is no limitation here.

[0040] In the technical solution of this utility model embodiment, by setting the limiting protrusion 360, the guide can be restricted to the base 100. In case of accidental contact or excessive operation of the rotating part, the guide is prevented from falling out of the base 100 or the machine head 200 is raised excessively, ensuring the normal use of the unlocking and locking functions and improving the reliability of the lifting mechanism.

[0041] Please see Figure 4 and Figure 5 In one embodiment, the locking component further includes a second elastic member disposed at the head 200 and used to drive the guide member to abut against the positioning member 310.

[0042] In one embodiment, the second elastic element is configured as a first torsion spring 350. The machine head 200 is provided with a mounting shaft 211. The first torsion spring 350 is sleeved on the mounting shaft 211. The first torsion spring 350 has a first torsion arm 351 and a second torsion arm 352. The first torsion arm 351 abuts against the inner wall of the machine head 200, and the second torsion arm 352 abuts against the side of the guide member away from the positioning member 310.

[0043] Specifically, the machine head 200 includes a fixed connecting body and a mounting base 210. The body has a second cavity and a through hole, and the mounting base 210 is located on the side of the body facing the base 100. The mounting base 210 has a groove and a mounting shaft 211 on the side facing the body. The mounting shaft 211 is located in the groove and is perpendicular to the positioning shaft 340. A first torsion spring 350 is movably sleeved on the mounting shaft 211. The groove wall away from the positioning end has an abutment surface. A limiting member 212 protrudes from the groove and is located close to the abutment surface. A first torsion arm 351 extends between the abutment surface and the limiting member 212. The first torsion arm 351 can move between the abutment surface and the limiting member 212 to provide overshoot protection for the first torsion spring 350. A second torsion spring 440 extends to the side of the guide plate 320 facing away from the positioning member 310 and abuts against the guide plate 320 to drive the guide plate 320 to rotate around the positioning shaft 340 toward the positioning member 310. Furthermore, the bottom of the groove is provided with a clearance opening, which is positioned opposite to the through hole to allow the guide plate 320 to pass and provide space for the guide plate 320 to move. Of course, in other embodiments, the second elastic element can also be configured as an elastic block or spring, etc. One end of the second elastic element is located on the side of the guide plate 320 facing away from the positioning member 310, and the other end of the first elastic element 130 is fixed to the wall surface of the mounting base 210 opposite to the guide plate 320. Here, there is no limitation.

[0044] In the technical solution of this utility model embodiment, by setting a second elastic member, when the notch 321 engages with the positioning member 310, the guide plate 320 can be driven to engage with the positioning member 310, thereby improving the stability of locking the head 200 and the base 100; and after the rotating member is reset, the guide plate 320 can be driven to abut against the positioning member 310, so that when the guide plate 320 moves along the positioning member 310, the notch 321 can automatically engage with the positioning member 310, thereby improving the ease of use of the head-raising mechanism.

[0045] Please see Figures 2 to 4 In one embodiment, the guide member is provided with two notches 321 spaced apart on the side near the positioning member 310, and the positioning member 310 can engage with either notch 321.

[0046] Specifically, two notches 321 are spaced apart in the direction away from the machine head 200 on the guide plate 320. The notch 321 closer to the machine head 200 is the working lock notch 3211, and the notch 321 farther from the machine head 200 is the lifting lock notch 3212. The limiting protrusion 360 is located on the side of the lifting lock notch 3212 away from the working lock notch 3211.

[0047] In the initial state, the working notch 3211 is engaged with the positioning member 310. When it is necessary to lift the machine head 200, the rotating member is rotated, and the first protrusion 411 can push against the abutment plate 330 to drive the guide plate 320 to rotate in a direction away from the positioning member 310 and closer to the positioning end, so that the working notch 321 disengages from the positioning member 310. After the working notch 321 disengages from the positioning member 310, the rotating member is reset, and the second elastic member drives the guide plate 320 to abut against the positioning member 310. At this time, under the drive of the first elastic member 130, the guide plate 320 can move along the positioning member 310 in a direction away from the base 100 until the lifting notch 321 engages with the positioning member 310, so that the movable end of the machine head 200 is lifted relative to the base 100. When it is necessary to return to the initial state, rotate the rotating part again, and the first protrusion 411 pushes against the abutment plate 330, causing the lifting notch 321 to disengage from the positioning part 310; after the working notch 321 disengages from the positioning part 310, the rotating part is reset, and the second elastic element drives the guide plate 320 to abut against the positioning part 310. At this time, the press head 200 is lowered, causing the guide plate 320 to move along the positioning part 310 towards the base 100 until the working notch 321 engages with the positioning part 310, thus achieving locking.

[0048] In the technical solution of this utility model embodiment, by setting two notches 321, it can cooperate with the first elastic member 130 and the second elastic member to realize automatic locking in the working state or when raised, thereby improving the ease of use and reliability of the raising mechanism.

[0049] Please see Figure 4 , Figure 6 and Figure 7 In one embodiment, the rotating component includes a handle 430, a drive shaft 420, and a rotating seat 410. The handle 430 is rotatably mounted on the base 100 and exposed outside the base 100. One end of the drive shaft 420 is fixed to the handle 430. The rotating seat 410 is fixed to the other end of the drive shaft 420 and is coaxially arranged with the drive shaft 420. The rotating seat 410 is provided with a first protrusion 411.

[0050] Specifically, both the drive shaft 420 and the rotating seat 410 are located within the first cavity. The drive shaft 420 is rotatably connected to the base 100, and both ends of the drive shaft 420 are fixedly connected to the rotating seat 410 and the handle 430, respectively. The handle 430 protrudes from the first cavity, and the first protrusion 411 is eccentrically located on the side of the rotating seat 410 facing the guide plate 320. By rotating the handle 430, the drive shaft 420 and the rotating seat 410 can be driven to rotate synchronously, allowing the first protrusion 411 to push against the abutment plate 330, thereby unlocking the device.

[0051] Please see Figure 4 , Figure 6 and Figure 7In one embodiment, the unlocking assembly 400 further includes a second torsion spring 440 and a fixing member 450. The second torsion spring 440 is movably sleeved on the outer periphery of the transmission shaft 420 and located on the side of the rotating seat 410 away from the guide member. The second torsion spring 440 has a third torsion arm 441 and a fourth torsion arm 442. The rotating seat 410 is connected to the third torsion arm 441. The fixing member 450 is fixed to the base 100 and located on the side of the second torsion spring 440 away from the rotating seat 410. The fixing member 450 is connected to the fourth torsion arm 442.

[0052] Specifically, the fixing member 450 has a hollow cylindrical structure, and the drive shaft 420 is movably inserted through the fixing member 450, that is, the drive shaft 420 is rotatably connected to the base 100 through the fixing member 450. The second torsion spring 440 is located between the rotating seat 410 and the fixing member 450. The rotating seat 410 has a second protrusion 412 protruding on the side facing the second torsion spring 440. The second protrusion 412 is eccentrically disposed on the rotating seat 410. The fixing member 450 has a third protrusion 451 protruding on the side facing the second torsion spring 440. The third protrusion 451 and the second protrusion 412 extend between the third torsion arm 441 and the fourth torsion arm 442. The second protrusion 412 is close to the third torsion arm 441, and the third protrusion 451 is close to the fourth torsion arm 442 and abuts against the fourth torsion arm 442. The third protrusion 451 is used to limit the fourth torsion arm 442. Furthermore, the third protrusion 451 has a latch on the side facing the fourth protruding arm, and the fourth torsion arm 442 can be latched into the latch to further stabilize and limit the fourth torsion arm 442. In one embodiment, a limiting ring 460 is also provided between the second torsion spring 440 and the fixing member 450. A positioning groove is provided on the outer periphery of the transmission shaft 420. The limiting ring 460 is rotatably sleeved on the outer periphery of the transmission shaft 420 and located in the positioning groove. The limiting ring 460 is used to limit the position of the second torsion spring 440.

[0053] When the handle 430 is rotated by an external force, the rotating seat 410 rotates and the second protrusion 412 pushes against the third torsion arm 441 to move away from the fourth torsion arm 442, causing the second torsion spring 440 to undergo elastic deformation. After the external force is removed, under the elastic action of the second torsion spring 440, the third torsion arm 441 drives the rotating seat 410 to return to its original position.

[0054] Of course, in other embodiments, the side of the rotating seat 410 facing the second torsion spring 440 may also be directly fixedly connected to the third torsion arm 441; and / or, the side of the fixing member 450 facing the second torsion spring 440 may be directly fixedly connected to the fourth torsion arm 442. Here, there are no restrictions.

[0055] In the technical solution of this utility model embodiment, by setting a handle 430 exposed on the base 100, it is convenient for the user to operate the unlocking component 400, thus improving the ease of operation; by setting a second torsion spring 440 and a fixing member 450, the rotating seat 410 can be automatically reset, and it also helps to achieve automatic locking of the machine head 200, simplifying the manual operation steps and improving the ease of use and reliability of the head-raising mechanism.

[0056] Please see Figure 6 In one embodiment, the fixing member 450 has an annular groove 452 and a limiting part 453 on the side facing away from the second torsion spring 440. The annular groove 452 is arranged around the transmission shaft 420, and the limiting part 453 is provided in the annular groove 452. The rotating handle 430 has an extension part 4321 extending into the annular groove 452. The extension part 4321 can abut against the limiting part 453 to limit the rotation stroke of the rotating handle 430.

[0057] Specifically, the handle 430 includes a bent handle head 431 and a handle rod 432. The cavity wall of the first cavity has a through hole communicating with the first cavity. The handle rod 432 extends into the first cavity through the through hole and is fixedly connected to the drive shaft 420. A fixing member 450 is located between the handle rod 432 and the second torsion spring 440. The fixing member 450 has an annular groove 452 and a limiting part 453 on the side facing the fixing member 450. The limiting part 453 protrudes into the annular groove 452. The handle rod 432 has an extension part 4321 protruding on the side facing the fixing rod. The extension part 4321 can move along the annular groove 452 until it abuts against the limiting part 453. The extension part 4321 is an arc-shaped protrusion arranged around the axial direction of the drive shaft 420. Both ends of the extension part 4321 can abut against the limiting part 453 to achieve bidirectional limitation.

[0058] In the technical solution of this utility model embodiment, by setting an annular groove 452, a limiting part 453 and an extension part 4321, the rotation stroke of the handle 430 can be limited, so as to avoid the guide plate 320 from excessively pressing the first torsion spring 350 due to excessive rotation stroke of the handle 430, that is, to avoid damage to the first torsion spring 350, to ensure the normal realization of the automatic locking function, and to improve the service life and reliability of the lifting mechanism.

[0059] This utility model also proposes a food processor, including the lifting mechanism of the above embodiments. The specific structure of the lifting mechanism is as described in the above embodiments. Since this food processor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A lifting mechanism for a food processor, characterized in that, include: Base; The machine head is rotatably connected to the base; A first elastic element is disposed at one end where the machine head and the base are rotatably connected. The first elastic element is used to drive the machine head to rotate relative to the base so that the machine head is lifted. The locking assembly includes a positioning element and a guide element. The positioning element is fixed to the base. One end of the guide element is rotatably disposed on the machine head, and the other end of the guide element extends movably into the base. The guide element has a notch on the side facing the positioning element, and the notch can engage with the positioning element to lock the machine head to the base. as well as The unlocking component includes a rotating member rotatably mounted on the base. The rotating member has a first protrusion at one end facing the guide member. The first protrusion is eccentrically positioned to the rotation axis of the rotating member. The first protrusion is used to push the guide member to rotate away from the positioning member, so that the notch disengages from the positioning member.

2. The head-up mechanism as described in claim 1, characterized in that, The guide component includes: A guide plate, rotatably mounted on the machine head and extending into the base, the guide plate having the notch; and An abutment plate is provided on the side of the guide plate facing the rotating member. The abutment plate and the notch are arranged parallel to each other at intervals. The first protrusion can rotate away from the positioning member to push against the abutment plate.

3. The head-up mechanism as described in claim 2, characterized in that, The locking component also includes: A limiting protrusion is provided on the side of the guide plate facing the rotating member. The limiting protrusion is located at the end of the guide plate away from the machine head. The limiting protrusion is used to abut against the first protrusion to restrict the end of the guide member away from the machine head to the base.

4. The head-up mechanism as described in claim 1, characterized in that, The locking component also includes: A second elastic element is provided at the machine head to drive the guide element to abut against the positioning element.

5. The head-up mechanism as described in claim 4, characterized in that, The second elastic element is configured as a first torsion spring. The machine head is provided with a mounting shaft. The first torsion spring is sleeved on the mounting shaft. The first torsion spring has a first torsion arm and a second torsion arm. The first torsion arm abuts against the inner wall of the machine head, and the second torsion arm abuts against the side of the guide member away from the positioning member.

6. The head-up mechanism as described in claim 1, characterized in that, The guide member has two notches spaced apart on the side near the positioning member, and the positioning member can engage with either of the notches.

7. The head-up mechanism as described in claim 1, characterized in that, The rotating component includes: A rotating handle is rotatably mounted on the base and exposed outside the base; A drive shaft, one end of which is fixed to the rotating handle; and A rotating seat is fixed to the other end of the transmission shaft and coaxially arranged with the transmission shaft. The rotating seat is provided with the first protrusion.

8. The head-up mechanism as described in claim 7, characterized in that, The unlocking component also includes: A second torsion spring is movably sleeved on the outer periphery of the drive shaft and located on the side of the rotating seat opposite to the guide member. The second torsion spring has a third torsion arm and a fourth torsion arm, and the rotating seat is connected to the third torsion arm. A fixing member is fixed to the base and located on the side of the second torsion spring facing away from the rotating seat, and the fixing member is connected to the fourth torsion arm.

9. The head-up mechanism as described in claim 8, characterized in that, The fixing member has an annular groove and a limiting part on the side facing away from the second torsion spring. The annular groove is arranged around the transmission shaft, and the limiting part is provided in the annular groove. The rotating handle has an extension part that extends into the annular groove. The extension part can abut against the limiting part to limit the rotation stroke of the rotating handle.

10. A food processor, characterized in that, Includes the head-up mechanism as described in any one of claims 1 to 9.

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