An air fryer lifting structure and an air fryer having the same structure.

Abstract

This invention discloses an air fryer lifting structure, including a support tube, a lifting seat, and a drive rod. A lifting tube assembly is fixedly provided at the bottom of the lifting seat, and a guide seat is fixedly provided at the bottom of the drive rod. A through hole is opened in the tube wall of the lifting tube assembly, and a locking block is movably inserted through the through hole. An elastic element is provided between the locking block and the lifting tube assembly. Several locking holes are spaced apart along the height direction. A guide structure is provided between the guide seat and the locking block. It has the effects of compact structure, convenient adjustment, and stable locking.

Description

Technical Field

[0001] This invention relates to the field of air fryer technology, and particularly to an air fryer lifting structure and an air fryer having the same structure. Background Technology

[0002] An air fryer is a cooking appliance that uses rapidly circulating hot air inside to heat and bake food. It mainly uses air instead of the hot oil in a frying pan to cook food. At the same time, the hot air blows away the moisture on the surface of the food, giving the ingredients an effect similar to deep-frying. It is becoming increasingly popular due to its convenience, low oil content, and health benefits.

[0003] A Chinese patent with publication number CN215016354U discloses an air fryer with a removable cover basket, comprising a cooking chamber located inside the air fryer, a basket disposed within the cooking chamber, and a hot air device. The basket has an opening at the top, and the hot air device is located above the basket. A removable cover is provided at the opening at the top of the basket. When the cover is installed on the basket, the interior of the basket is sealed and isolated from the hot air device. When the cover is removed from the opening at the top of the basket, the interior of the basket is connected to the hot air device.

[0004] However, the aforementioned air fryers have the following drawbacks: the hot air device is installed on the air fryer in an integrated or fixed connection manner, and the capacity of its cooking chamber is usually not adjustable. When the size of the food being cooked is small, an excessively large cooking chamber can easily lead to wasted space, while a fixed-volume cooking chamber can hardly accommodate large food items, resulting in uneven heating of the food. In addition, this type of air fryer requires a fixed-size frying basket for cooking food and cannot be adapted to different heights of the fryer. Therefore, there is an urgent need to develop an air fryer with an adjustable cooking chamber height. Summary of the Invention

[0005] The purpose of this invention is to provide an air fryer lifting structure and an air fryer having the same structure, which has the advantages of compact structure, convenient adjustment and stable locking.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an air fryer lifting structure, including a support tube and a lifting seat, wherein the support tube has an axially opened sliding cavity, the bottom of the lifting seat is fixedly provided with a lifting tube assembly, the lifting tube assembly is slidably disposed in the sliding cavity, a drive rod is axially inserted in the lifting tube assembly and the lifting seat, a guide seat is fixedly provided at the bottom of the drive rod, the guide seat is slidably disposed in the lifting tube assembly, a through hole is opened in the tube wall of the lifting tube assembly, a locking block is movably inserted in the through hole, an elastic element is provided between the locking block and the lifting tube assembly, a plurality of locking holes are spaced apart along the height direction in the tube wall of the support tube, and the elastic element pushes the locking block out of the through hole and locks it in lock with the corresponding locking hole; A guide structure is provided between the guide seat and the locking block. When the drive rod drives the guide seat to slide up and down within the lifting tube assembly, the guide seat cooperates with the locking block through the guide structure, driving the locking block to move relative to the through hole to the retracted state.

[0007] By adopting the above technical solution, the support tube provides overall support for the device. When the guide seat is raised and lowered by the drive rod, it can form a guiding cooperation with the locking block through the guide structure. This drives the locking block to overcome the force of the elastic element and switch between the extended and retracted states, thereby realizing the locking or disengagement between the locking block and the locking holes corresponding to different heights on the support tube. This completes the multi-level height adjustment of the lifting seat. The adjustment operation is convenient, and the locking is firm and reliable. It effectively ensures the structural stability and safety of the air fryer after the lifting adjustment. Moreover, the device has a high overall axial integration and occupies little space. It has the effects of compact structure, convenient adjustment, and stable locking.

[0008] A further configuration of the present invention is as follows: the lifting tube assembly includes a lifting sleeve and a mounting base fixedly connected to the bottom of the lifting sleeve; the locking block is slidably disposed on the mounting base; a blocking portion is protruding from the middle of the mounting base; one end of the elastic member abuts against the blocking portion; and the other end of the elastic member abuts against the locking block.

[0009] By adopting the above technical solution, this device separates the lifting pipe assembly into a lifting sleeve and a fixed mounting base at the bottom, and sets a stop part in the middle of the mounting base, so that one end of the elastic element directly abuts against the stop part and the other end abuts against the locking block. On the one hand, it realizes the stable assembly and positioning of the elastic element and the locking block, avoids the elastic element from shifting, falling off or getting stuck during the extension and contraction process, makes the force transmission of the elastic element more uniform, and ensures that the locking block can be reliably pushed to achieve the locking function, thereby improving the reliability and durability of the structure. On the other hand, this split structure facilitates the assembly, maintenance and replacement of the elastic element and the locking block, and simplifies the processing and assembly process.

[0010] A further configuration of the present invention is as follows: the lock block includes an integrally connected sliding part and a locking tongue part, the sliding part is slidably disposed on the mounting base, and the locking tongue part is movably disposed in the through hole.

[0011] By adopting the above technical solution, the sliding fit between the sliding part and the mounting base, as well as the guiding effect between the latch and the through hole, improves the consistency of the extension and retraction direction of the lock block.

[0012] A further feature of the present invention is that the mounting base is provided with a plurality of sliding ribs corresponding to the locking block, the plurality of sliding ribs are spaced apart along the sliding direction of the locking block, and the locking block slides and engages with the sliding ribs.

[0013] By adopting the above technical solution, multiple sliding ribs are set on the mounting base corresponding to the lock block, which are spaced apart along the sliding direction. Compared with the method of direct contact between the lock block and the main body of the mounting base, the contact area and frictional resistance during the extension and retraction of the lock block are effectively reduced, making the contact surface between the lock block and the sliding rib smaller. This avoids the lock block from getting stuck during the extension and retraction process, ensures that the lock tongue is accurately aligned with the lock hole on the support tube, improves the accuracy and reliability of locking positioning, and extends the service life of the components.

[0014] A further feature of the present invention is that the guide structure includes a guide slope inclined on the lock block, and the guide seat is provided with a pressing part corresponding to the guide slope. The pressing part guides and cooperates with the guide slope to drive the lock block to move relative to the through hole to a retracted state.

[0015] By adopting the above technical solution, when the drive rod drives the guide seat to descend, the pressing part of the guide seat presses into contact with the guide ramp. Utilizing the guiding effect of the ramp, the axial linear motion of the drive rod and guide seat is converted into the horizontal sliding motion of the lock block. The transmission is direct and the response is rapid, enabling precise and smooth switching of the lock block between the extended and retracted states to achieve unlocking and locking actions. At the same time, the force on the guide ramp is uniform, which can effectively reduce friction during the transmission process and improve the smoothness of lifting and adjusting. The structure is compact and the parts are fitted with high precision, which not only ensures the reliability of locking positioning but also improves the overall operating stability and user experience of the lifting mechanism.

[0016] A further provision of the present invention is that: the locking block and the elastic element are provided in two sets, and the two sets of the locking block and the elastic element are symmetrically arranged on both sides of the blocking part.

[0017] By adopting the above technical solution, a symmetrical bidirectional locking positioning is formed between the lifting pipe assembly and the support pipe, resulting in more balanced and stable force distribution. This effectively avoids the problems of skewness, shaking, or loosening that are prone to occur with unilateral locking, and significantly improves the overall firmness and structural stability after height positioning. During height adjustment, the symmetrically arranged locking blocks extend and retract synchronously and complete the locking or unlocking action simultaneously with the corresponding lock holes, resulting in stronger consistency of action. This ensures smooth and reliable unlocking and locking actions, enhances the structural load-bearing capacity and safety of use, and the symmetrical structural layout is regular and easy to assemble, further improving the operational stability and durability of the device.

[0018] A further feature of the present invention is that: a button is connected to one end of the drive rod away from the guide seat; the lifting seat has a mounting groove corresponding to the button; the button is slidably disposed in the mounting groove; and an anti-detachment edge extends outward from the bottom edge of the button, the anti-detachment edge engaging with the mounting groove to prevent detachment.

[0019] By adopting the above technical solution, users can unlock the device by pressing a button to drive the drive rod and guide seat. The operation is intuitive and effortless, improving the user experience. In addition, the anti-detachment edge can effectively limit the axial lifting stroke of the button, preventing the button from coming off the mounting slot during pressing, rebounding or assembly, thus improving the overall reliability and safety of the operating mechanism.

[0020] A further provision of the present invention is that a spring is provided between the button and the lifting seat, and the spring has a tendency to drive the button to extend out of the mounting slot.

[0021] By adopting the above technical solution, after pressing the button to disengage and unlock the lock block from the corresponding lock hole, releasing the pressing force on the button allows the spring to automatically reset the button using its own elastic restoring force, so that the lock block can re-engage into the lock hole under the action of the elastic element to complete the locking. No manual reset is required, making the operation simpler and faster.

[0022] A further feature of the present invention is that the cross-sections of the rising pipe assembly and the support pipe are rectangular.

[0023] By adopting the above technical solution and utilizing the circumferential limiting characteristics of the rectangular cross section, the relative rotation or circumferential swaying of the rising tube assembly can be effectively avoided when it rises and falls within the sliding cavity of the support tube. Furthermore, the mating surface of the rectangular structure is straighter, the sliding is smoother and less prone to jamming, thereby ensuring the straightness and stability of the rising tube assembly when it rises and falls relative to the support tube.

[0024] Another technical objective of the present invention is achieved through the following technical solution: an air fryer, including a heating base and a hot air hood assembly, and further including an air fryer lifting structure, wherein the bottom of the support tube is fixedly installed on the heating base, the hot air hood assembly is fixedly installed on the side wall of the lifting base, the hot air hood assembly and the heating base are parallel to each other and spaced apart, and the vertical projection of the hot air hood assembly at least partially overlaps with the area where the heating base is located.

[0025] By adopting the above technical solution, the air fryer can achieve the lifting and lowering adjustment of the hot air hood assembly relative to the heating base using the above lifting structure. The lifting process is smooth and without jamming. The overall structure has a high degree of integration and occupies little space. It can flexibly adapt to different food heights and cooking needs. The reliable cooperation of the locking block and locking hole ensures that the position is firm and does not shake after adjustment. While improving the versatility and cooking flexibility of the air fryer, it greatly enhances the stability of equipment operation and the convenience of operation. It has the effects of reliable and durable structure, improved adaptability and practicality.

[0026] In summary, the present invention has the following beneficial effects: The support tube provides stable support for the overall structure. When the drive rod drives the guide seat to slide axially up and down within the lifting tube assembly, the guide seat can form a precise guiding engagement with the locking block through the guide structure. This drives the locking block to overcome the force of the elastic element and flexibly switch between two states: locking through the through hole and locking through the support tube, and unlocking by retracting through the through hole. This allows for multi-level height adjustment of the lifting seat. The overall device has high axial integration and occupies little space. It also has the advantages of compact structure, convenient adjustment operation, and firm and reliable locking, effectively ensuring the structural stability and safety of the air fryer after lifting and adjusting. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the lifting structure of the present invention.

[0028] Figure 2 This is the present invention. Figure 1 A sectional view.

[0029] Figure 3 This is the present invention. Figure 2 A magnified view of a portion of region A in the middle.

[0030] Figure 4 This is the present invention. Figure 2 A magnified view of a portion of region B in the middle.

[0031] Figure 5 This is an exploded view of the drive rod, guide seat, locking block, and elastic element of the present invention.

[0032] Figure 6 This is a structural diagram of the air fryer of the present invention.

[0033] Figure 7 This is a schematic diagram of the air fryer with a frying basket according to the present invention.

[0034] In the diagram: 1. Support tube; 11. Sliding cavity; 12. Locking hole; 2. Lifting seat; 20. Mounting groove; 21. Main body; 22. Connecting part; 3. Lifting tube assembly; 31. Lifting sleeve; 311. Through hole; 32. Mounting seat; 321. Blocking part; 3211. Positioning post; 322. Sliding rib; 323. Positioning part; 4. Drive rod; 41. Guide seat; 411. Pressing part; 42. Button; 421. Anti-detachment edge; 422. Spring; 5. Locking block; 51. Sliding part; 511. Guide slope; 52. Locking tongue; 6. Elastic element; 7. Heating base; 8. Hot air hood assembly; 9. Frying basket. Detailed Implementation

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] An air fryer lifting structure, such as Figures 1 to 5As shown, the device includes a support tube 1 and a lifting seat 2. The support tube 1 has an axially extending sliding cavity 11. A lifting tube assembly 3 is fixedly mounted at the bottom of the lifting seat 2 and slidably disposed within the sliding cavity 11. A drive rod 4 axially passes through the lifting tube assembly 3 and the lifting seat 2. A guide seat 41 is fixedly mounted at the bottom of the drive rod 4 and slidably disposed within the lifting tube assembly 3. A through hole 311 is opened in the wall of the lifting tube assembly 3. A locking block 5 movably passes through the through hole 311. An elastic element 6 is provided between the locking block 5 and the lifting tube assembly 3. Several locking holes 12 are spaced apart along the height direction on the wall of the support tube 1. The elastic element 6 pushes the locking block 5 out of the through hole 311 and... It locks in place with the corresponding lock hole 12; a guide structure is provided between the guide seat 41 and the lock block 5. When the drive rod 4 drives the guide seat 41 to slide up and down in the lifting tube assembly 3, the guide seat 41 guides and engages with the lock block 5 through the guide structure, driving the lock block 5 to move relative to the through hole 311 to the retracted state. In addition, in this embodiment, the lifting seat 2 includes a main body 21 and connecting parts 22 symmetrically distributed on both sides of the main body 21. The protruding connecting parts 22 on both sides make it convenient for the user to hold the connecting parts 22 after the lock block 5 is unlocked to realize the lifting adjustment of the lifting seat 2, improving the ease of operation of this device. The connecting parts 22 cooperate with the main body 21 to make the lifting seat 2 have a T-shaped structure.

[0037] like Figures 2 to 5As shown, the lifting pipe assembly 3 includes a lifting sleeve 31 and a mounting base 32 fixedly connected to the bottom of the lifting sleeve 31. A locking block 5 is slidably disposed on the mounting base 32. A stop portion 321 protrudes from the middle of the mounting base 32. One end of the elastic member 6 abuts against the stop portion 321, and the other end of the elastic member 6 abuts against the locking block 5. This device separates the lifting pipe assembly 3 into a lifting sleeve 31 and a mounting base 32 fixed at the bottom, and sets a stop portion 321 in the middle of the mounting base 32, so that one end of the elastic member 6 directly abuts against the stop portion 321, and the other end abuts against the locking block 5. The locking block 5 serves two purposes: firstly, it ensures stable assembly and positioning of the elastic element 6 and the locking block 5, preventing the elastic element 6 from shifting, falling off, or jamming during extension and retraction, thus ensuring more even force transmission and reliable locking of the locking block 5, improving the reliability and durability of the structure; secondly, this split structure facilitates the assembly, maintenance, and replacement of the elastic element 6 and the locking block 5, simplifying the processing and assembly procedures. In this embodiment, the locking block 5 and the elastic element 6 are provided in two sets, with the elastic element 6 being a conical spring and the abutment part... Positioning posts 3211 are provided at both ends of the conical springs on both sides of 321. The large end of the conical spring is sleeved on the positioning post 3211 and abuts against the stop part 321. The small end of the conical spring abuts against the locking block 5, and the translational trajectory of the locking block 5 coincides with the axial direction of the positioning post 3211, which helps to improve the consistency of the pushing direction of the conical spring on the locking block 5. The two sets of locking blocks 5 and elastic elements 6 are symmetrically arranged on both sides of the stop part 321, so that the lifting tube assembly 3 and the support tube 1 form a symmetrical bidirectional locking positioning, and the force is controlled. More balanced and stable, effectively avoiding the problems of skewing, shaking or loosening that are prone to occur with unilateral locking, greatly improving the overall firmness and structural stability after height positioning. During height adjustment, the symmetrically arranged locking blocks 5 extend and retract synchronously and complete the locking or unlocking action at the same time as the corresponding lock holes 12, resulting in stronger consistency of action. This not only ensures smooth and reliable unlocking and locking actions, but also enhances the structural load-bearing capacity and safety of use. At the same time, the symmetrical structural layout is regular and easy to assemble, further improving the operational stability and durability of this device.

[0038] like Figure 3 and Figure 5As shown, the locking block 5 includes an integrally connected sliding part 51 and a locking tongue part 52. The sliding part 51 is slidably disposed on the mounting base 32, and the locking tongue part 52 is movably disposed in the through hole 311. By utilizing the sliding engagement between the sliding part 51 and the mounting base 32, and the guiding effect of the locking tongue part 52 and the through hole 311, the consistency of the extension and retraction directions of the locking block 5 is improved. The mounting base 32 is provided with two sliding ribs 322 corresponding to the locking block 5. Several sliding ribs 322 are spaced apart along the sliding direction of the locking block 5. The locking block 5 slides and engages with the sliding ribs 322. Compared with the direct contact between the locking block 5 and the main body 21 of the mounting base 32, this effectively reduces the contact area and friction when the locking block 5 extends and retracts. The friction resistance reduces the contact area between the locking block 5 and the sliding rib 322, preventing the locking block 5 from getting stuck during extension and retraction. This ensures that the locking tongue 52 is accurately aligned with the lock hole 12 on the support tube 1, improving the accuracy and reliability of locking positioning and extending the service life of components. Furthermore, the locking tongue 52 is distributed between the two sliding ribs 322, so that the projections of the locking tongue 52 and the two sliding ribs 322 onto the translational trajectory of the locking block 5 form an isosceles triangle structure. This allows the compressive stress on the locking block 5 to be evenly transmitted to the sliding ribs 322 on both sides, improving the uniformity of stress distribution and effectively preventing the locking block 5 from shifting due to bias during pressing and translation, thus avoiding contact issues. The increased wear between components extends the service life of the device. In this embodiment, the mounting base 32 has positioning portions 323 protruding on both sides of the sliding rib 322. The positioning portions 323 and the sliding rib 322 form an annular rib structure. When the mounting base 32 is installed at the bottom of the lifting sleeve 31, the positioning portions 323 engage with the bottom of the inner cavity of the lifting sleeve 31 for positioning. The guide structure includes a guide slope 511 inclined on the locking block 5. The guide seat 41 has a pressing portion 411 protruding corresponding to the guide slope 511. The pressing portion 411 guides and cooperates with the guide slope 511, driving the locking block 5 to move relative to the through hole 311 to the retracted state. When the drive rod 4 drives the guide... When seat 41 descends, the pressing part 411 of guide seat 41 presses into contact with guide ramp 511. Utilizing the guiding effect of the ramp 511, the axial linear motion of drive rod 4 and guide seat 41 is converted into the horizontal sliding motion of locking block 5. The transmission is direct and the response is rapid, enabling precise and smooth switching of locking block 5 between extended and retracted states to achieve unlocking and locking actions. At the same time, the force on guide ramp 511 is uniform, which can effectively reduce friction during transmission and improve the smoothness of lifting and adjusting. The structure is compact and the parts are fitted with high precision, ensuring the reliability of locking and positioning while improving the overall stability and user experience of the lifting mechanism.

[0039] like Figures 1 to 2 and Figures 4 to 5As shown, a button 42 is connected to the end of the drive rod 4 away from the guide seat 41. The lifting seat 2 has a mounting groove 20 corresponding to the button 42. The button 42 slides within the mounting groove 20, and an anti-detachment edge 421 extends outward from the bottom edge of the button 42. The anti-detachment edge 421 engages with the mounting groove 20 to prevent detachment. By pressing the button 42, the user can drive the drive rod 4 and guide seat 41 to complete the unlocking action. The operation is intuitive and effortless, improving the user experience. Furthermore, the anti-detachment edge 421 effectively limits the axial lifting stroke of the button 42, preventing the button 42 from detaching from the mounting groove 20 during pressing, rebounding, or assembly, thus improving the overall reliability and safety of the operating mechanism. A spring 422 is provided between the button 42 and the lifting seat 2. The spring 422 drives the button 42 to extend outward from the mounting groove 20. The movement trend of the groove 20 is such that after pressing the button 42 to unlock the lock block 5 from the corresponding lock hole 12, the pressing force on the button 42 is released. The spring 422 can realize the automatic reset of the button 42 by its own elastic restoring force, so that the lock block 5 can be re-engaged into the lock hole 12 under the action of the elastic element 6 to complete the locking. There is no need for manual reset, making the operation simpler and faster. The cross-section of the lifting tube assembly 3 and the support tube 1 is rectangular. By utilizing the circumferential limiting characteristics of the rectangular cross-section itself, the lifting tube assembly 3 can effectively avoid relative rotation or circumferential shaking when it rises and falls in the sliding cavity 11 of the support tube 1. Moreover, the mating surface of the rectangular structure is straighter, the sliding is smooth and not easy to jam, thus ensuring the straightness and stability of the lifting tube assembly when it rises and falls relative to the support tube 1.

[0040] This invention provides an air fryer, such as Figures 6 to 7 As shown, the air fryer includes a heating base 7 and a hot air hood assembly 8. Two frying baskets 9 are arranged side by side between the heating base 7 and the hot air hood assembly 8. The air fryer also includes the aforementioned lifting structure. The bottom of the support tube 1 is fixedly installed on the heating base 7, and the hot air hood assembly 8 is fixedly installed on the side wall of the lifting base 2. The hot air hood assembly 8 and the heating base 7 are parallel to each other and spaced apart. The vertical projection of the hot air hood assembly 8 overlaps at least partially with the area where the heating base 7 is located. The air fryer can adjust the height of the hot air hood assembly 8 relative to the heating base 7 using the aforementioned lifting structure. The lifting process is smooth and without jamming. The overall structure has a high degree of integration and occupies little space. It can flexibly adapt to different food heights and cooking needs. The reliable cooperation between the locking block 5 and the locking hole 12 ensures that the position is firm and does not shake after adjustment. While improving the versatility and cooking flexibility of the air fryer, it greatly enhances the stability and ease of operation of the equipment. It has the effects of reliable and durable structure, improved adaptability and practicality.

[0041] The basic working principle of this invention is as follows: The support tube 1 is fixedly connected to the heating base 7, providing fixed support for the lifting structure and hot air hood assembly 8. When the user presses or releases the button 42, the guide seat 41 is lifted and slid by the drive rod 4. The guide structure and the locking block 5 form a guiding cooperation, driving the locking block 5 to overcome the force of the elastic element 6 and switch between the extended state and the retracted state. This realizes the locking or disengagement between the locking block 5 and the locking holes 12 at different heights on the support tube 1, thereby completing the multi-level height adjustment of the lifting seat 2. The adjustment operation is convenient, the locking is firm and reliable, and it effectively ensures the structural stability and safety of the air fryer after the lifting adjustment. Moreover, the device has a high overall axial integration, occupies little space, and has the effects of compact structure, convenient adjustment, and stable locking.

[0042] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. An air fryer lifting structure, comprising a support tube (1) and a lifting seat (2), characterized in that: The support tube (1) has an axially opening sliding cavity (11), the bottom of the lifting seat (2) is fixedly provided with a lifting tube assembly (3), the lifting tube assembly (3) is slidably disposed in the sliding cavity (11), the lifting tube assembly (3) and the lifting seat (2) are axially provided with a drive rod (4), the bottom of the drive rod (4) is fixedly provided with a guide seat (41), the guide seat (41) is slidably disposed in the lifting tube assembly (3), the tube wall of the lifting tube assembly (3) has an opening through hole (311), a locking block (5) is movably disposed in the opening through hole (311), an elastic element (6) is provided between the locking block (5) and the lifting tube assembly (3), the tube wall of the support tube (1) has a plurality of locking holes (12) spaced apart along the height direction, the elastic element (6) pushes the locking block (5) to extend out of the opening through hole (311) and locks it in cooperation with the corresponding locking hole (12); A guide structure is provided between the guide seat (41) and the locking block (5). When the drive rod (4) drives the guide seat (41) to slide up and down in the lifting tube assembly (3), the guide seat (41) cooperates with the locking block (5) through the guide structure, driving the locking block (5) to move relative to the through hole (311) to the retracted state.

2. The air fryer lifting structure according to claim 1, characterized in that: The lifting tube assembly (3) includes a lifting sleeve (31) and a mounting base (32) fixedly connected to the bottom of the lifting sleeve (31). The locking block (5) is slidably disposed on the mounting base (32). The mounting base (32) has a protruding abutment (321) in the middle. One end of the elastic member (6) abuts against the abutment (321), and the other end of the elastic member (6) abuts against the locking block (5).

3. The air fryer lifting structure according to claim 2, characterized in that: The lock block (5) includes an integrally connected sliding part (51) and a locking tongue part (52). The sliding part (51) is slidably disposed on the mounting base (32), and the locking tongue part (52) is movably disposed in the through hole (311).

4. The air fryer lifting structure according to claim 2, characterized in that: The mounting base (32) is provided with a plurality of sliding ribs (322) corresponding to the locking block (5). The plurality of sliding ribs (322) are spaced apart along the sliding direction of the locking block (5). The locking block (5) slides and engages with the sliding ribs (322).

5. The air fryer lifting structure according to claim 2, characterized in that: The guide structure includes a guide slope (511) inclined on the lock block (5), and the guide seat (41) is provided with a pressing part (411) corresponding to the guide slope (511). The pressing part (411) guides and cooperates with the guide slope (511) to drive the lock block (5) to move relative to the through hole (311) to the retracted state.

6. The air fryer lifting structure according to claim 2, characterized in that: The locking block (5) and elastic element (6) are provided in two sets, and the two sets of locking blocks (5) and elastic elements (6) are symmetrically arranged on both sides of the blocking part (321).

7. The air fryer lifting structure according to claim 1, characterized in that: The drive rod (4) is connected to a button (42) at one end away from the guide seat (41). The lifting seat (2) has a mounting groove (20) corresponding to the button (42). The button (42) is slidably disposed in the mounting groove (20), and the bottom edge of the button (42) extends outward with an anti-detachment edge (421). The anti-detachment edge (421) is anti-detached from the mounting groove (20).

8. The air fryer lifting structure according to claim 7, characterized in that: A spring (422) is provided between the button (42) and the lifting seat (2), and the spring (422) has a tendency to drive the button (42) to extend out of the mounting groove (20).

9. The air fryer lifting structure according to claim 1, characterized in that: The cross-sections of the lifting pipe assembly (3) and the support pipe (1) are rectangular.

10. An air fryer comprising a heating base (7) and a hot air hood assembly (8), characterized in that: It also includes the air fryer lifting structure as described in any one of claims 1-9, wherein the bottom of the support tube (1) is fixedly installed on the heating base (7), the hot air hood assembly (8) is fixedly installed on the side wall of the lifting seat (2), the hot air hood assembly (8) and the heating base (7) are parallel to each other and spaced apart, and the vertical projection of the hot air hood assembly (8) overlaps at least partially with the area where the heating base (7) is located.

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