A lid lifting mechanism and an oven

Abstract

This application provides a baking lid lifting mechanism and an oven. The baking lid lifting mechanism includes a driving component, a transmission component, and cranks. The driving component and the transmission component are meshed at their adjacent ends, and the driving component drives the transmission component to rotate. There are two cranks, and both ends of the transmission component are connected to one end of each of the two cranks. The other ends of each of the two cranks are slidably connected to a moving component, and a baking lid is mounted on the lower end of the moving component. This baking lid lifting mechanism effectively reduces the failure rate in actual use by reducing the number of parts and simplifying the structural design. At the same time, this design simplifies the assembly process, making it more convenient to use in various baking equipment with lifting and adjustment functions, thereby saving assembly and production time and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of oven technology, and in particular to a lid lifting mechanism and an oven. Background Technology

[0002] An oven is a closed appliance specifically designed for cooking food or drying products. With continuous technological advancements, the functions of ovens are constantly expanding, such as intelligent ingredient recognition, precise temperature control, and adjustable baking levels. To cater to diverse consumer baking needs, modern ovens are designed with various height-adjustable mechanisms to raise and lower internal components such as baking trays and lids. However, the height-adjustable mechanisms of ovens currently on the market are often quite complex. This not only increases the overall weight of the oven, but the complex structure also makes it prone to malfunctions or damage.

[0003] For example, Chinese utility model patent CN107997614A discloses a baking tray support lifting mechanism for an oven. This lifting mechanism is connected to a left and right baking tray support located on the left and right sides of the oven liner to support the baking tray. It includes a drive motor, a first gear, a second gear, a first worm, a second worm, a left drive shaft, a third gear, a first left bevel gear, a second left bevel gear, a left crank, a right drive shaft, a fourth gear, a first right bevel gear, a second right bevel gear, and a right crank. The lifting mechanism, implemented using a crank-slider principle, allows the oven side supports to remain stationary and self-locking at different heights within the oven liner; it also allows the oven supports to continuously rise and fall according to a trigonometric function. However, structurally, the transmission structure is complex, with many connection points, making it prone to affecting overall function due to a malfunction in one area. Therefore, further improvements can be made to obtain a simpler structure. Utility Model Content

[0004] One of the purposes of this invention is to address the shortcomings of existing technologies by providing a baking lid lifting mechanism that has a simple structure, low failure rate, and can increase product lifespan and reduce maintenance frequency.

[0005] This utility model provides a baking lid lifting mechanism, including a driving component, a transmission component, and cranks. The driving component and the transmission component are meshed at their close ends. The driving component is used to drive the transmission component to rotate. There are two cranks. Both ends of the transmission component are connected to one end of the two cranks. The other ends of the two cranks are slidably connected to a moving component. The lower end of the moving component is equipped with a baking lid.

[0006] The driving component receives driving force from a power source and transmits it to the transmission component. The transmission component, through engagement with the driving component, gains rotational kinetic energy, converting the rotational motion into the oscillating motion of the crank after connection. Simultaneously, one end of the oscillating crank slides within the moving component, allowing the height change generated by the crank's oscillation to move the moving component up and down, thus raising and lowering the lid. Here, the lid refers to the upper cover within the oven cavity. This lid-raising mechanism employs a simple structure for lid lifting, with a short transmission distance and fewer connection points, thereby reducing the failure rate, increasing product durability, and minimizing maintenance frequency.

[0007] In a preferred embodiment of this invention, the driving component includes a first gear and a first transmission shaft, with one end of the first gear disposed on one end of the first transmission shaft; the transmission component includes a second gear and a second transmission shaft, with one end of the second gear disposed on one end of the second transmission shaft, and both ends of the second transmission shaft respectively connected to one end of the two cranks; the second gear and the first gear mesh with each other.

[0008] The first gear is connected to the first drive shaft, and the rotation of the first drive shaft can drive the first gear to rotate. The second gear meshes with the first gear, and the second drive shaft is connected to the second gear. Therefore, the rotational motion of the first gear can be transmitted to the second gear and the second drive shaft. At the same time, the two ends of the second drive shaft are connected to cranks respectively. Through this design, the driving force of the power source is transmitted, and finally the effect of raising and lowering the grill lid is achieved.

[0009] In a preferred embodiment of this invention, both the first gear and the second gear are bevel teeth, and the first gear and the second gear mesh perpendicularly with each other.

[0010] Compared to other ordinary gears, the bevel gears used in the first and second gears offer better stability and reliability, reducing potential vibrations and ensuring the stability of the lid lifting mechanism. They also have a stronger load-bearing capacity, allowing for better lifting of larger lids. Furthermore, the use of bevel gears allows for changing the transmission direction, facilitating the placement of the power source according to actual needs.

[0011] In a preferred embodiment of this invention, the moving part includes an annular portion and a cylindrical portion. A slide rail is provided on the annular portion, and the other end of the crank is slidably connected to the slide rail. One end of the cylindrical portion is fixed to the outer side of the annular portion, and the other end of the cylindrical portion is mounted on the top of the baking lid.

[0012] The slide rail on the annular section corresponds to one end of the crank, allowing this end to slide within the slide rail. This ensures that the horizontal position of the moving part does not change when the crank swings, reducing the space occupied by the lid lifting mechanism. A cylindrical section is fixed to the outside of the annular section, thereby connecting and fixing the lid.

[0013] In a preferred embodiment of this invention, the crank includes a transmission part and a protrusion. One end of the transmission part is connected to the transmission component, and the other end of the transmission part is connected to the protrusion. The protrusion is disposed in the slide rail.

[0014] The transmission part connects to the transmission component to transmit power, and the protrusion is used to extend into the slide rail to achieve a sliding connection with the moving component, allowing it to reciprocate along the slide rail.

[0015] In a preferred embodiment of this invention, the baking lid is provided with a heating tube, which is mounted on the bottom of the baking lid.

[0016] The heating element is connected to both sides of the baking lid. The up and down movement of the baking lid affects the distance between the heating element and the food, thus changing the baking effect by raising and lowering the baking lid.

[0017] In a preferred embodiment of this invention, an air supply assembly is installed on the baking lid. The air supply assembly includes fan blades, a fan cover, and a servo motor. The shaft end of the servo motor passes through the top of the fan cover and is connected to the fan blades located in the fan cover. The fan cover is fixed to the top surface of the baking lid.

[0018] The servo motor is connected to the fan blades to drive them to rotate, which can deliver air from top to bottom or draw air from bottom to top on the baking lid. The fan cover is placed on the outside of the fan blades to guide the airflow, thereby drawing in or expelling the airflow in the set direction to change the baking degree and improve the baking effect.

[0019] In a preferred embodiment of this invention, a throttle is provided at the end of the drive member that is away from the transmission member.

[0020] The drive unit is connected to a throttle that provides a manual operating area, allowing users to manually rotate the drive unit and adjust the height of the baking lid themselves.

[0021] In a preferred embodiment of this invention, the end of the driving member that is away from the transmission member is connected to a driving device.

[0022] The drive unit replaces manual control of the drive components, making it easier to integrate into the baking equipment system for intelligent settings and automatic control of the baking lid height.

[0023] The second objective of this utility model is to provide an oven, including an oven body, wherein the oven body is equipped with the aforementioned lid lifting mechanism.

[0024] The oven is equipped with the aforementioned lid lifting mechanism, which allows for adjustment of the lid height as needed to expand or shrink the baking space and control the baking temperature.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] This utility model provides a baking lid lifting mechanism, which includes a transmission component and a driving component that drives the transmission component to rotate. The transmission component is connected to a crank, thereby converting the driving force into the swinging motion of the crank. When the transmission component is fixed in position, the swinging end of the crank will generate a displacement in the height direction, causing the transmission component to slide in a moving component via the swinging end of the crank, thus driving the moving component to lift and lower, ultimately realizing the lifting and lowering adjustment of the baking lid. This baking lid lifting mechanism uses fewer components and has a simple structure, which can reduce the failure rate in actual use and is therefore easy to assemble. When applied to various baking equipment with lifting and adjusting functions, it can save assembly and production time, thereby improving production efficiency.

[0027] An oven with a lifting lid mechanism is also provided, allowing users to adjust the lid height and control the baking temperature to meet the baking needs of different ingredients. This design not only enhances the oven's flexibility and practicality but also provides users with a more personalized baking experience. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the baking lid lifting mechanism according to an embodiment of this application. Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the structure of the baking lid lifting mechanism according to an embodiment of this application. Figure 2 ;

[0030] Figure 3 This is a schematic diagram of the structure of the baking lid lifting mechanism according to an embodiment of this application. Figure 3 ;

[0031] Figure 4 This is a schematic diagram of the structure of the baking lid lifting mechanism according to an embodiment of this application. Figure 4 ;

[0032] Figure 5 This is a perspective view of an oven according to an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the structure of the oven in an embodiment of this application. Figure 1 ;

[0034] Figure 7 This is a schematic diagram of the structure of the oven in an embodiment of this application. Figure 2 ;

[0035] Figure 8 This is a schematic diagram of the structure of the oven in an embodiment of this application. Figure 3 ;

[0036] Figure 9This is a schematic diagram of the structure of the oven in an embodiment of this application. Figure 4 .

[0037] Figure label:

[0038] 1. Drive component; 11. First gear; 12. First drive shaft; 13. Throttle;

[0039] 2. Transmission component; 21. Second gear; 22. Second transmission shaft;

[0040] 3. Crank; 31. Transmission part; 32. Protrusion;

[0041] 4. Moving part; 41. Annular part; 411. Slide rail; 42. Cylindrical part;

[0042] 5. Baking lid; 6. Heating element;

[0043] 7. Air supply assembly; 71. Fan blades; 72. Fan cover; 73. Servo motor;

[0044] 8. Oven body; 81. Inner shell; 82. Outer shell. Detailed Implementation

[0045] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0046] In the description of this utility model, the terms "upper", "lower", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Example 1

[0048] See Figure 1 As shown, this application provides a baking lid lifting mechanism, including a driving member 1, a transmission member 2 and a crank 3. The driving member 1 and the transmission member 2 are meshed at their close ends. The driving member 1 is used to drive the transmission member 2 to rotate. There are two cranks 3. Both ends of the transmission member 2 are connected to one end of the two cranks 3. The other ends of the two cranks 3 are slidably connected to a moving member 4. The lower end of the moving member 4 is equipped with a baking lid 5.

[0049] Specifically, both the driving component 1 and the transmission component 2 are metal parts with a meshing structure. The driving component 1 provides driving force, while the transmission component 2 obtains rotational kinetic energy by meshing with the driving component 1. Both ends of the transmission component 2 are perpendicularly connected to two cranks 3, converting the rotational motion of the transmission component 2 into the swinging motion of the cranks 3 after connection. One end of the swinging cranks 3 can slide in two moving parts 4, thus the height change generated by the swinging of the cranks 3 enables the moving parts 4 to move up and down. The two moving parts 4 are fixed on both sides of the top of the baking lid 5, thereby achieving the lifting and lowering of the baking lid 5. Here, the baking lid 5 refers to the upper cover in the oven cavity. During installation, this baking lid lifting mechanism only requires rotating the driving component 1 and the transmission component 2 to achieve overall installation. Therefore, this baking lid lifting mechanism uses a simple structure to achieve the lifting and lowering of the baking lid 5. Its transmission distance is short, and the number of transmission connection points is correspondingly reduced, thus reducing the failure rate, making the product more durable, and reducing the number of maintenance needs.

[0050] See Figure 2 As shown, the driving component 1 includes a first gear 11 and a first transmission shaft 12, with one end of the first gear 11 disposed on one end of the first transmission shaft 12; the transmission component 2 includes a second gear 21 and a second transmission shaft 22, with one end of the second gear 21 disposed on one end of the second transmission shaft 22, and both ends of the second transmission shaft 22 respectively connected to one end of two cranks 3; the second gear 21 and the first gear 11 mesh with each other.

[0051] Specifically, the first drive shaft 12 passes through the first gear 11, allowing the first gear 11 to rotate. The second gear 21 meshes with the first gear 11, and the second drive shaft 22 passes through the second gear 21, thus transmitting the rotational motion of the first gear 11 to the second gear 21 and the second drive shaft 22. The first drive shaft 12 is located on the opposite side of the meshing surface of the first gear 11, while the second drive shaft 22 is located on the same side as the meshing surface of the second gear 21. This design ensures that the first drive shaft 12 extends outward for easy adjustment and prevents positional conflict with the second drive shaft 22. Simultaneously, two cranks 3 are vertically connected to both ends of the second drive shaft 22. This design transmits the driving force of the power source, ultimately achieving the effect of raising and lowering the adjustable grill lid 5.

[0052] See Figure 2 As shown, both the first gear 11 and the second gear 21 are bevel teeth, and the first gear 11 and the second gear 21 mesh perpendicularly to each other.

[0053] Specifically, the bevel gears used in the first gear 11 and the second gear 21 have better stability and reliability compared to other ordinary gears, which can reduce possible vibrations, ensure the stability of the lid lifting mechanism, and have a strong load-bearing capacity, which can better lift the larger lid 5. In addition, the use of bevel gears can also change the transmission direction, making it easier to arrange the position of the power source according to actual needs.

[0054] See Figure 3 As shown, the movable part 4 includes an annular part 41 and a cylindrical part 42. A slide rail 411 is provided on the annular part 41. The other end of the crank 3 is slidably connected to the slide rail 411. One end of the cylindrical part 42 is fixed to the outer side of the annular part 41. The other end of the cylindrical part 42 is mounted on the top of the baking lid 5.

[0055] Specifically, the slide rail 411 of the annular portion 41 corresponds to one end of the crank 3, allowing this end to slide within the slide rail 411. This ensures that the horizontal position of the moving part 4 does not change when the crank 3 swings, reducing the space occupied by the lid lifting mechanism. Two parallel cylindrical portions 42 are fixed to the lower outer end of the annular portion 41, and the top of the lid 5 is vertically connected to the cylindrical portions 42 to achieve the connection and fixation of the lid 5. The moving part 4 can be integrally formed with the lid 5 or fixed by bolts, rivets, or other structures.

[0056] See Figure 2 As shown, the crank 3 includes a transmission part 31 and a protrusion 32. One end of the transmission part 31 is connected to the transmission member 2, and the other end of the transmission part 31 is connected to the protrusion 32. The protrusion 32 is disposed in the slide rail 411.

[0057] Specifically, a fixing hole is provided at one end of the transmission part 31, through which the transmission member 2 is inserted and fixed to transmit power. The protrusion 32 is a cylindrical protrusion structure that can extend into the slide rail 411 to achieve a sliding connection with the moving member 4. The width of the slide rail 411 is slightly larger than the cross-sectional diameter of the protrusion 32, so the protrusion 32 can reciprocate along the slide rail 411.

[0058] See Figure 4 As shown, the baking lid 5 is equipped with a heating tube 6, which is mounted on the bottom of the baking lid 5.

[0059] Specifically, the bottom of the baking lid 5 is concave upwards, forming an arc-shaped inner wall around it. The two ends of the heating tube 6 pass through and are fixed to the inner walls of the lid on both sides of the baking lid 5. Thus, the up and down movement of the baking lid 5 can affect the distance between the heating tube 6 and the food, thereby changing the baking effect by raising and lowering the baking lid 5.

[0060] See Figure 2 As shown, a throttle 13 is provided at the end of the drive component 1 that is away from the transmission component 2.

[0061] Specifically, the drive unit 1 connected to the throttle 13 provides a manual operation area, which can be used by the user to manually rotate the drive unit 1, thereby independently adjusting the height of the baking lid 5.

[0062] Example 2

[0063] See Figure 1 , 2 As shown, based on the above embodiment 1, this embodiment provides a baking lid lifting mechanism. An air supply component 7 is installed on the baking lid 5. The air supply component 7 includes a fan blade 71, a fan cover 72 and a servo motor 73. The shaft end of the servo motor 73 passes through the top of the fan cover 72 and is connected to the fan blade 71 located in the fan cover 72. The fan cover 72 is fixed to the top surface of the baking lid 5.

[0064] Specifically, the servo motor 73 is located on the top of the fan cover 72. After the servo motor 73 is connected to the fan blade 71, it drives the fan blade 71 to rotate. It can deliver air from top to bottom or draw air from bottom to top on the baking lid 5. The fan cover 72 is placed on the outside of the fan blade 71, and one side of the fan cover 72 forms an air guide port, which can guide the airflow, thereby drawing in or expelling the airflow in a set direction to change the baking degree and improve the baking effect.

[0065] Furthermore, the top of the shroud 72 has an installation port, and a cavity is formed in the shroud 72. A support frame is installed in the cavity, and the servo motor 73 is fixed to the support frame through the installation port.

[0066] Specifically, the shroud 72 has an installation port that allows the servo motor 73 to partially enter the cavity, and a support frame is provided inside the cavity, which can be used to fix the servo motor 73 and ensure the stability of the servo motor 73. Therefore, when assembling the baking lid lifting mechanism, it is not necessary to install the servo motor 73 again.

[0067] Optionally, a motor is connected to the end of the drive component 1 that is away from the transmission component 2.

[0068] Specifically, the electric motor replaces the manual control of the drive component 1, which facilitates intelligent settings in the control system of the baking equipment and completes the automatic control of the height of the baking lid 5.

[0069] Example 3

[0070] See Figure 5-9 As shown, this embodiment provides an oven, including an oven body 8, in which the oven body 8 is equipped with the above-mentioned lid lifting mechanism.

[0071] Specifically, the oven body 8 consists of an inner shell 81 and an outer shell 82, with the lid lifting mechanism cleverly installed between the inner shell 81 and the outer shell 82. Above the inner shell 81, a first mounting plate and a second mounting plate are specially designed, both located on the upper part of the inner shell 81. The first mounting plate is secured with multiple limiting members by bolts, and these limiting members have dedicated limiting holes. The first drive shaft 12 and the second drive shaft 22 are installed through these limiting holes and can rotate freely within them. Furthermore, the first mounting plate has a swing opening at the position corresponding to the crank 3, through which the crank 3 can pass and connect to the moving part 4 to achieve swinging. The second mounting plate is located below the first mounting plate and has a lifting opening at the position corresponding to the moving part 4, providing the necessary lifting space for the moving part 4. The inner shell 81 contains a baking chamber, and the lid 5 is located within the baking chamber. The top of the inner shell 81 is designed with a through-hole, allowing the cylindrical part 42 of the movable part 4 to be fixedly connected to the baking lid 5 through the through-hole. Two vertical protective grooves are provided on each side of the inner shell 81 to protect the ends of the heating tube 6 protruding from the baking lid 5. The outer shell 82 has a through-hole through which the first drive shaft 12 is connected to a throttle handle 13 on the outside of the outer shell 82, facilitating user adjustment of the height of the baking lid 5. Through this carefully designed baking lid lifting mechanism, users can adjust the height of the baking lid 5 as needed, effectively expanding or shrinking the baking space and controlling the baking temperature to meet the baking requirements of different ingredients, greatly enhancing the user experience.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A toast cover lifting mechanism characterized by: It includes a drive component (1), a transmission component (2), and a crank (3). The drive component (1) and the transmission component (2) are meshed at their close ends. The drive component (1) is used to drive the transmission component (2) to rotate. There are two cranks (3). Both ends of the transmission component (2) are connected to one end of the two cranks (3). The other ends of the two cranks (3) are slidably connected to a moving component (4). A baking lid (5) is installed at the lower end of the moving component (4).

2. The lid lifting mechanism according to claim 1, wherein: The driving component (1) includes a first gear (11) and a first transmission shaft (12), with one end of the first gear (11) disposed on one end of the first transmission shaft (12); the transmission component (2) includes a second gear (21) and a second transmission shaft (22), with one end of the second gear (21) disposed on one end of the second transmission shaft (22), and both ends of the second transmission shaft (22) respectively connected to one end of the two cranks (3); the second gear (21) and the first gear (11) mesh with each other.

3. The lid lifting mechanism according to claim 2, wherein: Both the first gear (11) and the second gear (21) are beveled teeth, and the first gear (11) and the second gear (21) mesh perpendicularly to each other.

4. The lid lifting mechanism of claim 1, wherein: The movable part (4) includes an annular part (41) and a cylindrical part (42). A slide rail (411) is provided on the annular part (41). The other end of the crank (3) is slidably connected to the slide rail (411). One end of the cylindrical part (42) is fixed to the outside of the annular part (41). The other end of the cylindrical part (42) is mounted on the top of the baking lid (5).

5. The lid lifting mechanism of claim 4, wherein: The crank (3) includes a transmission part (31) and a protrusion (32). One end of the transmission part (31) is connected to the transmission member (2), and the other end of the transmission part (31) is connected to the protrusion (32). The protrusion (32) is disposed in the slide rail (411).

6. The lid lifting mechanism of claim 1, wherein: The baking lid (5) is provided with a heating tube (6), which is mounted on the bottom of the baking lid (5).

7. The lid lifting mechanism of claim 1, wherein: An air supply assembly (7) is installed on the baking lid (5). The air supply assembly (7) includes a fan blade (71), a fan cover (72), and a servo motor (73). The shaft end of the servo motor (73) passes through the top of the fan cover (72) and is connected to the fan blade (71) located in the fan cover (72). The fan cover (72) is fixed to the top surface of the baking lid (5).

8. The lid lifting mechanism of claim 1, wherein: A throttle (13) is provided at the end of the drive member (1) away from the transmission member (2).

9. The lid lifting mechanism of claim 1, wherein: The drive member (1) is connected to a drive device at the end away from the transmission member (2).

10. An oven comprising an oven body (8), characterised in that: The oven body (8) is equipped with a lid lifting mechanism as described in any one of claims 1-9.

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