Projection device, projection device adjusting assembly and cooking stove

By installing a projection device and adjustment components on the cooking stove, the problem of the fixed position of the display window is solved, enabling flexible projection and convenient viewing of cooking interactive information, thus improving the user experience.

CN222354696UActive Publication Date: 2025-01-14NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Application Number
CN202420813247.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-18
Publication Date
2025-01-14
Estimated Expiration
2034-04-18

AI Technical Summary

Technical Problem

The display window of existing cooking stoves is in a fixed position, and users need to be in a specific location or walk close to the display window to see the cooking interaction information, which makes the display method inconvenient.

Method used

The device employs a projection device and adjustment components, including a sleeve, circuit board, projection lamp, lens group, and display screen. The projection device adjustment components are movably connected to the stove panel to achieve the adjustment of the projection angle. The projection device is installed below the stove panel, and the lens group and condenser lens are used to improve the projection effect.

Benefits of technology

It enables flexible projection of cooking interaction information, allowing users to view cooking progress and status from a wider perspective, thus improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a projection device, a projection device adjusting assembly and a cooking stove, the projection device is used for projecting cooking interaction information, and the projection device comprises a sleeve, a circuit board, a projection lamp, a lens group and a display screen; the sleeve is movably connected with the cooker panel through a projection device adjusting assembly, and the projection device adjusting assembly is at least used for adjusting the projection angle of the projection device; the circuit board is located at the bottom of the sleeve. The projection lamp is fixed to the circuit board. The lens group comprises a first lens and a second lens, the first lens is arranged in the sleeve, and the second lens is arranged at the open end of the sleeve; the display screen is arranged between the first lens and the second lens. The projection angle of the projection device can be adjusted, and cooking interaction information can be projected more flexibly.
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Description

Technical Field

[0001] The utility model relates to the technical field of cooking stoves, in particular to a projection device, a projection device adjustment component and a cooking stove. Background Art

[0002] With the development of smart cookers, in order to enable users to grasp the cooking status and prompt the cooking progress in time during the cooking process, cooking interactive information is usually displayed on the cooker panel or cooking area. Since the display window is fixed in position, the user needs to be in a specific position or approach the display window to see the displayed information. For users who are cooking, this display method is very inconvenient. Utility Model Content

[0003] In order to solve at least one of the above-mentioned technical problems, the present disclosure provides a projection device, a projection device adjustment component and a cooking stove.

[0004] In one aspect, the present disclosure provides a projection device for projecting cooking interactive information, the projection device comprising: a sleeve, a circuit board, a projection lamp, a lens group and a display screen;

[0005] The sleeve is movably connected to the cooker panel through a projection device adjustment component, and the projection device adjustment component is at least used to adjust the projection angle of the projection device;

[0006] The circuit board is located at the bottom of the sleeve, and the projection lamp is fixed on the circuit board;

[0007] The lens group includes a first lens and a second lens, the first lens is arranged in the sleeve, and the second lens is arranged at the opening end of the sleeve;

[0008] The display screen is arranged between the first lens and the second lens.

[0009] In an optional embodiment, the projection device is used to be installed below the cooker panel;

[0010] The cooker panel is provided with a light-transmitting window, which is located on the projection light path of the projection device.

[0011] In an optional embodiment, the lens group further includes: a third lens;

[0012] The third lens is arranged between the display screen and the second lens, and is used for enhancing the projection imaging of the cooking interactive information.

[0013] In an optional embodiment, the projection device further comprises: a condenser lens;

[0014] The condenser is arranged around the projection lamp.

[0015] In an optional embodiment, the projection device further comprises: a radiator;

[0016] The heat sink is arranged below the circuit board.

[0017] In a second aspect, the present disclosure further provides a projection device adjustment component for adjusting the projection angle of the projection device, the projection device adjustment component comprising: a connecting member, a movable member and an adjustment member;

[0018] The connecting piece is used to connect the open end of the sleeve and the cooker panel;

[0019] The bottom of the sleeve is movably connected to the movable member, and one end of the movable member is movably connected to the adjusting member;

[0020] The adjusting part is used to adjust the position of the movable part.

[0021] In an optional embodiment, the movable member includes: a movable plate, a slide rail and a slider;

[0022] The slide rail is arranged on the side of the movable plate, the slider is sleeved in the slide rail, and the bottom of the sleeve is connected with the slider.

[0023] In an optional embodiment, a through hole is provided at one end of the movable plate, and a thread is provided on the inner wall of the through hole, and the adjusting member comprises: an adjusting nut, a first gear structure, a second gear structure and a screw rod;

[0024] The adjusting nut is connected to the first gear structure, the first gear structure is engaged with the second gear structure, and the adjusting nut is used to adjust the rotation of the first gear structure;

[0025] One end of the screw is connected to the middle part of the second gear structure, and the outer wall of the screw is provided with threads, which are engaged with the threads of the inner wall of the through hole.

[0026] In an optional embodiment, the projection device adjustment assembly further includes: a mounting box;

[0027] The connecting piece, the movable piece and the adjusting piece are all located in the installation box, and the opening end of the sleeve is located outside the installation box.

[0028] In a third aspect, the present disclosure further provides a cooking stove, comprising the above-mentioned projection device or the above-mentioned projection device adjustment component.

[0029] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0030] The implementation of this disclosure has the following beneficial effects:

[0031] A projection device is used for projecting cooking interactive information, the projection device comprising: a sleeve, a circuit board, a projection lamp, a lens group and a display screen; the sleeve is movably connected to a cooker panel through a projection device adjustment component, the projection device adjustment component is at least used to adjust the projection angle of the projection device; the circuit board is located at the bottom of the sleeve, and the projection lamp is fixed on the circuit board; the lens group comprises a first lens and a second lens, the first lens is arranged in the sleeve, and the second lens is arranged at the open end of the sleeve; the display screen is arranged between the first lens and the second lens.

[0032] The present invention makes it more convenient to display the cooking interaction information by setting a display screen in a sleeve and projecting the cooking interaction information displayed on the display screen to the outside through a projection lamp; the sleeve is movably connected to the stove panel through a projection device adjustment component, so that the projection angle of the projection device can be adjusted, and the cooking interaction information can be projected more flexibly.

[0033] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure, and do not constitute an improper limitation of the present disclosure.

[0035] Figure 1 is a schematic structural diagram of a projection device according to an exemplary embodiment;

[0036] Figure 2 is a schematic diagram of a built-in pattern of a display screen according to an exemplary embodiment;

[0037] Figure 3 is a schematic diagram of assembling a projection device according to an exemplary embodiment;

[0038] Figure 4 is a detailed structural schematic diagram of a projection device according to an exemplary embodiment;

[0039] Figure 5 is a schematic structural diagram of a projection device adjustment assembly according to an exemplary embodiment;

[0040] Figure 6is a detailed structural schematic diagram of a projection device adjustment component according to an exemplary embodiment;

[0041] Figure 7 is a schematic structural diagram of an adjusting nut, a first gear structure and a second gear according to an exemplary embodiment;

[0042] The following is a supplementary description of the attached drawings:

[0043] 1-sleeve; 2-circuit board; 3-projection lamp; 4-lens group; 401-first lens; 402-second lens; 403-third lens; 5-display screen; 6-stove panel; 7-condenser; 8-radiator; 9-connecting part; 10-movable part; 1001-movable plate; 1002-slide rail; 1003-slider; 11-adjusting part; 1101-adjusting nut; 1102-first gear structure; 1103-second gear structure; 1104-screw; 12-installation box. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0046] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated. The word "exemplary" is used specifically herein to mean "serving as an example, embodiment, or illustrative". Any embodiment described herein as "exemplary" is not necessarily to be construed as being superior or better than other embodiments.

[0047] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0048] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0049] In the related art, in order to enable users to grasp the cooking status and prompt the cooking progress in time during the cooking process, cooking interactive information is usually displayed on the stove panel or cooking area. Since the display window is fixed in position, the user needs to be in a specific position or approach the display window to see the displayed information. For users who are cooking, this display method is very inconvenient.

[0050] In order to improve the flexibility of displaying interactive cooking information and facilitate users to view information, the embodiments of the present disclosure provide a projection device, a projection device adjustment component and a cooking stove.

[0051] Figure 1 is a schematic diagram of a projection device for projecting cooking interactive information according to an exemplary embodiment. Figure 1 As shown, the projection device includes: a sleeve 1, a circuit board 2, a projection lamp 3, a lens group 4 and a display screen 5.

[0052] The sleeve 1 is movably connected to the cooker panel via a projection device adjustment component, and the projection device adjustment component is at least used to adjust the projection angle of the projection device.

[0053] In the disclosed embodiment, the sleeve 1 may be a cylindrical hollow structure, and the outer wall of the sleeve 1 is movably connected to the bottom of the stove panel through a projection device adjustment component, and the projection device adjustment component can fix and adjust the projection angle of the projection device.

[0054] The circuit board 2 is located at the bottom of the sleeve 1 , and the projection lamp 3 is fixed on the circuit board 2 .

[0055] In the embodiment of the present disclosure, the circuit board 2 is an LED circuit board, which is used to power the projection lamp 3. The circuit board 2 is connected to the controller through a lead wire. The projection lamp 3 is welded on the circuit board 2, and the projection lamp 3 is preferably an LED lamp.

[0056] The lens group 4 includes a first lens 401 and a second lens 402 . The first lens 401 is disposed in the sleeve 1 , and the second lens 402 is disposed at the opening end of the sleeve 1 .

[0057] In the disclosed embodiment, the first lens 401 is located in front of the projection lamp 3 in the sleeve 1, and the second lens 402 is located at the opening end of the sleeve 1, that is, the projection light outlet. Both the first lens 401 and the second lens 402 are convex lenses.

[0058] The display screen 5 is disposed between the first lens 401 and the second lens 402 .

[0059] In the embodiment of the present disclosure, the display screen 5 is preferably a liquid crystal display screen, which is used to display cooking interaction information, and optionally, Figure 2 As shown, the cooking interactive information displayed on the display screen 5 may be a cooking countdown, a stove switch status, a fire power level, a range hood switch status, etc. It may also include prompts for adding ingredients when cooking is complete, etc. The display screen 5 has a trapezoidal compensation function to compensate for the deformation caused by projecting the image to the outside. The display screen 5 is connected to the controller via a lead, and the controller transmits the corresponding cooking interactive information to the display screen 5 within the corresponding time period.

[0060] In an optional embodiment, if Figure 3 As shown, the projection device is used to be installed below the cooker panel 6; the cooker panel 6 is provided with a light-transmitting window 601, and the light-transmitting window 601 is located on the projection light path of the projection device.

[0061] In the disclosed embodiment, the projection device is installed below the stove panel 6, and the stove panel 6 is provided with a light-transmitting window 601, which is made of a light-transmitting material. The projection light of the projection device passes through the light-transmitting window 601 from bottom to top and is projected onto the wall or tiles.

[0062] Based on the above, it can be known that in the embodiment of the present disclosure, by installing the projection device below the cooker panel 6 and providing a light-transmitting window 601 on the cooker panel 6, the projection range of the cooking interaction information can be made wider, making it easier for users to view the cooking interaction information.

[0063] In an optional embodiment, if Figure 4 As shown, the lens group 4 further includes: a third lens 403; the third lens 403 is arranged between the display screen 5 and the second lens 402, and the third lens 403 is used to enhance the projection imaging of the cooking interaction information.

[0064] In the embodiment of the present disclosure, the third lens 403 may be a convex lens, and the third lens 403 is disposed between the display screen 5 and the second lens 402, and the distance between the third lens 403 and the display screen 5 is equivalent to the distance between the first lens 401 and the display screen 5. When the projection imaging quality of the cooking interactive information is low, such as when a virtual shadow or a virtual image appears, the third lens 403 may be added to improve the imaging quality.

[0065] In an optional embodiment, if Figure 4 As shown, the projection device further includes: a condenser 7; the condenser 7 is arranged around the projection lamp 3.

[0066] In the disclosed embodiment, the condenser 7 is a trumpet-shaped structure, the side of the trumpet-shaped structure with a smaller opening is arranged close to the projection lamp 3, and the side of the trumpet-shaped structure with a larger opening is arranged away from the projection lamp 3. The projection light of the projection lamp 3 is reflected by the condenser 7 and then emitted in a direction parallel to the inner wall of the sleeve 1.

[0067] Based on the above, it can be known that in the embodiment of the present disclosure, by arranging the condenser 7 around the projection lamp 3, the light projected by the projection lamp 3 can be more concentrated, thereby improving the brightness of the projection light.

[0068] In an optional embodiment, if Figure 4 As shown, the projection device further includes: a heat sink 8 ; the heat sink 8 is arranged below the circuit board 2 .

[0069] In the embodiment of the present disclosure, the radiator 8 is an LED radiator. When the temperature rise of the projection lamp 3 or the circuit board 2 is too high, the radiator 8 can play a role in heat dissipation.

[0070] In a second aspect, the present disclosure further provides a projection device adjustment component for adjusting the projection angle of the above-mentioned projection device.

[0071] Figure 5 It is a structural schematic diagram of a projection device adjustment component according to an exemplary embodiment, which includes: a connecting member 9, a movable member 10 and an adjustment member 11; the connecting member 9 is used to connect the open end of the sleeve 1 and the stove panel 6; the bottom of the sleeve 1 is movably connected to the movable member 10, and one end of the movable member 10 is movably connected to the adjustment member 11; the adjustment member 11 is used to adjust the position of the movable member 10.

[0072] In the disclosed embodiment, the connecting member 9 is movably connected to the outer wall of the opening end of the sleeve 1, and the movable member 10 is movably connected to the bottom outer wall of the sleeve 1. When the adjusting member 11 adjusts the position of the movable member 10, the projection angle of the projection device changes accordingly.

[0073] In an optional embodiment, if Figure 6 As shown, the movable member 10 includes: a movable plate 1001, a slide rail 1002 and a slider 1003;

[0074] The slide rail 1002 is arranged on the side of the movable plate 1001 , the slider 1003 is sleeved in the slide rail 1002 , and the bottom of the sleeve 1 is connected to the slider 1003 .

[0075] In the disclosed embodiment, the movable plate 1001 is a square flat plate structure, the slide rail 1002 is horizontally arranged on the side of the movable plate 1001, one end of the slider 1003 is sleeved in the slide rail 1002 and slides along the slide rail 1002, and the bottom outer wall of the sleeve 1 is connected to the slider 1003 and slides along the slide rail 1002 with the slider 1003.

[0076] Based on the above, it can be known that in the embodiment of the present disclosure, by setting the slide rail 1002 on the side of the movable plate 1001, the slider 1003 is sleeved in the slide rail 1002, and the bottom of the sleeve 1 is connected to the slider 1003, the position angle of the sleeve 1 can be changed as the slider 1003 slides in the slide rail 1002.

[0077] In an optional embodiment, if Figure 6 As shown, a through hole is provided at one end of the movable plate 1001 , and a thread is provided on the inner wall of the through hole. The adjusting member 11 includes: an adjusting nut 1101 , a first gear structure 1102 , a second gear structure 1103 and a screw rod 1104 .

[0078] The adjusting nut 1101 is connected to the first gear structure 1102 , the first gear structure 1102 is engaged with the second gear structure 1103 , and the adjusting nut 1101 is used to adjust the rotation of the first gear structure 1102 .

[0079] In the present disclosure, Figure 7 As shown, the first gear structure 1102 and the second gear structure 1103 are arranged vertically, and the first gear structure 1102 can be rotated by twisting the adjustment nut 1101. Since the first gear structure 1102 and the second gear structure 1103 are engaged, the second gear structure 1103 can rotate with the rotation of the first gear structure 1102. Optionally, the method of twisting the adjustment nut 1101 can be that the user adjusts the projection device adjustment component with a screwdriver on the side to adjust the projection angle. If the projection device adjustment component is installed between the two burners, it can be adjusted laterally with a screwdriver after removing the burners.

[0080] One end of the screw rod 1104 is connected to the middle of the second gear structure 1103 , and the outer wall of the screw rod 1104 is provided with threads, which engage with the threads of the inner wall of the through hole.

[0081] In the disclosed embodiment, when the second gear structure 1103 rotates, the screw 1104 also rotates around the central axis of the screw 1104 . Since the threads on the outer wall of the screw 1104 engage with the threads on the inner wall of the through hole, the movable plate 1001 can move up and down as the screw 1104 rotates.

[0082] In the embodiment of the present disclosure, the adjusting member 11 is assembled through a supporting structure, and the supporting structure includes a second gear stud supporting structure and a first gear supporting structure. The second gear stud supporting structure is used to support the second gear structure 1103 and the limiting screw 1104. A through hole is provided in the middle of the second gear stud supporting structure, and the through hole is used to pass through and limit the screw 1104. The first gear supporting structure is used to support the first gear structure 1102.

[0083] Based on the above, it can be known that in the embodiment of the present disclosure, the adjusting nut 1101 is connected to the first gear structure 1102, the first gear structure 1102 is engaged with the second gear structure 1103, one end of the screw 1104 is connected to the middle of the second gear structure 1103, and the thread on the outer wall of the screw 1104 is engaged with the thread on the inner wall of the through hole. It is possible to move the movable plate 1001 up and down by rotating the adjusting nut 1101, thereby changing the projection angle of the projection device.

[0084] In an optional embodiment, if Figure 6 As shown, the projection device adjustment assembly also includes: a mounting box 12 ; the connecting member 9 , the movable member 10 and the adjusting member 11 are all located inside the mounting box 12 , and the open end of the sleeve 1 is located outside the mounting box 12 .

[0085] In a third aspect, the present disclosure further provides a cooking stove, comprising the above-mentioned projection device or the above-mentioned projection device adjustment component.

[0086] In the embodiments of the present application, the term "module" or "unit" refers to a computer program or a part of a computer program with a predetermined function, and works together with other related parts to achieve a predetermined goal, and can be implemented in whole or in part by using software, hardware such as processing circuits or memories, or a combination thereof. Similarly, one processor or multiple processors or memories can be used to implement one or more modules or units. In addition, each module or unit can be part of an overall module or unit that includes the function of the module or unit.

[0087] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0088] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A projection device, characterized in that: Used for projecting cooking interactive information, the projection device comprises: a sleeve (1), a circuit board (2), a projection lamp (3), a lens group (4) and a display screen (5); The sleeve (1) is movably connected to the cooker panel via a projection device adjustment component, and the projection device adjustment component is at least used to adjust the projection angle of the projection device; The circuit board (2) is located at the bottom of the sleeve (1), and the projection lamp (3) is fixed on the circuit board (2); The lens group (4) comprises a first lens (401) and a second lens (402), wherein the first lens (401) is arranged in the sleeve (1), and the second lens (402) is arranged at an open end of the sleeve (1); The display screen (5) is arranged between the first lens (401) and the second lens (402).

2. The projection device according to claim 1, characterized in that: The projection device is used to be installed below the stove panel (6); The cooker panel (6) is provided with a light-transmitting window (601), and the light-transmitting window (601) is located on the projection light path of the projection device.

3. The projection device according to claim 1, characterized in that: The lens group (4) further includes: a third lens (403); The third lens (403) is arranged between the display screen (5) and the second lens (402), and the third lens (403) is used to enhance the projected imaging of the cooking interactive information.

4. The projection device according to claim 1, characterized in that: The projection device further comprises: a condenser lens (7); The condenser (7) is arranged around the projection lamp (3).

5. The projection device according to claim 1, characterized in that: The projection device further comprises: a radiator (8); The heat sink (8) is arranged below the circuit board (2).

6. A projection device adjustment assembly, characterized in that: Used to adjust the projection angle of the projection device according to any one of claims 1 to 5, the projection device adjustment component comprising: a connecting member (9), a movable member (10) and an adjusting member (11); The connecting member (9) is used to connect the open end of the sleeve (1) and the stove panel (6); The bottom of the sleeve (1) is movably connected to the movable member (10), and one end of the movable member (10) is movably connected to the adjusting member (11); The adjusting member (11) is used to adjust the position of the movable member (10).

7. The projection device adjustment assembly according to claim 6, characterized in that: The movable part (10) comprises: a movable plate (1001), a slide rail (1002) and a slide block (1003); The slide rail (1002) is arranged on the side of the movable plate (1001), the slider (1003) is sleeved in the slide rail (1002), and the bottom of the sleeve (1) is connected to the slider (1003).

8. The projection device adjustment assembly according to claim 7, characterized in that: A through hole is provided at one end of the movable plate (1001), and a thread is provided on the inner wall of the through hole. The adjusting member (11) comprises: an adjusting nut (1101), a first gear structure (1102), a second gear structure (1103) and a screw rod (1104); The adjusting nut (1101) is connected to the first gear structure (1102), the first gear structure (1102) is engaged with the second gear structure (1103), and the adjusting nut (1101) is used to adjust the rotation of the first gear structure (1102); One end of the screw rod (1104) is connected to the middle part of the second gear structure (1103), and the outer wall of the screw rod (1104) is provided with a thread, and the thread of the outer wall of the screw rod (1104) engages with the thread of the inner wall of the through hole.

9. The projection device adjustment assembly according to claim 6, characterized in that: The projection device adjustment assembly further comprises: a mounting box (12); The connecting member (9), the movable member (10) and the adjusting member (11) are all located inside the installation box (12), and the open end of the sleeve (1) is located outside the installation box (12).

10. A cooking stove, characterized in that: The method comprises the projection device according to any one of claims 1 to 5 or the projection device adjustment component according to any one of claims 6 to 9.