Lifting transmission mechanism capable of being used for cooking steak and heating equipment

Abstract

The utility model relates to the technical field of lifting transmission mechanisms, in particular to a lifting transmission mechanism for cooking steak and heating equipment, which comprises a fixing component, a transmission component and a driving component, the transmission component comprises a transmission shaft, a transmission part and a connecting rod component, and the driving component drives the transmission shaft to rotate and drives the transmission part. The transmission part moves directionally in the axial direction of the transmission shaft and drives the baking tray to ascend or descend through the connecting rod assembly. According to the lifting transmission mechanism, the transmission shaft is driven by the driving assembly to drive the transmission piece and the connecting rod assembly, then the baking tray is driven to ascend or descend, the thickness adjusting range of cooked steak is enlarged by lifting the baking tray, and the lifting transmission mechanism can adapt to cooking of steak in the lifting range; manual clamping and pressing of the steak can be replaced by mechanical lifting of the baking tray for decocting, manual pressing of the steak is not needed during decocting, double-sided compaction of the steak can be achieved by means of the jacking force of mechanical lifting, full contact of the baking tray to the steak is enhanced, and use by a user is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting transmission mechanisms, specifically a lifting transmission mechanism and heating device that can be used for cooking steaks. Background Technology

[0002] In daily life, traditional cooking methods for steak, such as frying pans and ovens, often make it difficult to precisely control the temperature and time when making steak, resulting in steaks that are either burnt on the outside and raw on the inside or undercooked. The emergence of steak machines has reduced the difficulty of cooking steaks, allowing people to conveniently fry and cook steaks.

[0003] However, most steak grills on the market have a flip-top design, using a double-sided flip-top clamping method. You manually press one of the movable grill pans onto the steak to be grilled, so that both sides of the steak can be heated at the same time. However, this flip-top clamping method is only suitable for steaks of a certain thickness. Steaks that are too thin may not be clamped properly, resulting in one side being cooked while the other side is still raw. Steaks that are too thick may not be clamped properly, resulting in one side being burnt while the other side is still raw. It cannot be adapted to cooking steaks of a wider range of thicknesses.

[0004] To address the above shortcomings, we need to develop a lifting transmission mechanism and heating equipment that can be used for cooking steaks to meet the needs of a wide range of users. Utility Model Content

[0005] In response to the aforementioned problems with existing steak machines, such as their inability to cook steaks of varying thicknesses, the technical solution adopted by this utility model is as follows:

[0006] A lifting transmission mechanism for cooking steaks includes a fixing component for limiting the installation position, a transmission component mounted on the fixing component, and a drive component for providing power. The transmission component includes a drive shaft, a transmission element, and a linkage assembly.

[0007] The drive assembly drives the transmission shaft to rotate and drives the transmission component, which moves axially along the transmission shaft. The transmission component drives the baking pan to rise or fall via the connecting rod assembly.

[0008] As described above, a lifting transmission mechanism for cooking steaks includes a fixing component comprising a first fixing plate and a second fixing plate through which the drive shaft passes. The transmission element is located on the outer surface of the drive shaft between the first fixing plate and the second fixing plate. The first fixing plate is located on the side of the drive shaft closer to the drive component, and the second fixing plate is located on the side of the drive shaft away from the drive component.

[0009] As described above, a lifting transmission mechanism for cooking steaks includes a first balance support rod and a second balance support rod installed between the first fixed support plate and the second fixed support plate, respectively arranged parallel to each other on the left and right sides of the transmission member. The first balance support rod passes through the left directional hole of the transmission member, and the second balance support rod passes through the right directional hole of the transmission member. When the transmission member moves, it moves directionally along the first balance support rod and the second balance support rod.

[0010] As described above, a lifting transmission mechanism for cooking steaks includes a first transmission block and a second transmission block. The outer surface of the transmission shaft is provided with an external thread. The first transmission block is provided with a left-hand internal thread, and the second transmission block is provided with a right-hand internal thread. When the transmission shaft rotates, the first transmission block and the second transmission block move closer to or further away from each other through threaded transmission.

[0011] As described above, a lifting transmission mechanism for cooking steaks includes a transmission hinge portion for hinged to the connecting rod assembly. The two ends of the transmission hinge portion are respectively hinged to the connecting rods of the connecting rod assembly, and the central axis of the transmission hinge portion is inclined to the direction of movement of the transmission component.

[0012] As described above, a lifting transmission mechanism for cooking steaks is provided, wherein the end of the connecting rod furthest from the transmission member is higher than the end closest to the transmission member. When the distance between the first transmission block and the second transmission block is the minimum value of the stroke range, the connecting rod forms a horizontal angle α with the horizontal plane, and the angle α is greater than 0.5 degrees.

[0013] As described above, a lifting transmission mechanism for cooking steaks includes a linkage assembly comprising a linkage hinged to the transmission member and a support frame mounted on the bottom of the baking pan, wherein the linkage is hinged to the support frame via a support rod.

[0014] When the drive shaft drives the drive component to move toward the direction of the corresponding connected support rod, the drive component drives the support frame to rise vertically through the connecting rod; or when the drive shaft drives the drive component to move away from the corresponding connected support rod, the drive component drives the support frame to fall vertically through the connecting rod.

[0015] As described above, a lifting transmission mechanism for cooking steaks includes a first transmission block and a second transmission block, a connecting rod including a first connecting rod and a second connecting rod, and a supporting rod including a first supporting rod and a second supporting rod. The transmission component is located between the first supporting rod and the second supporting rod. The first transmission block moves toward the first supporting rod and pushes one side of the support frame to rise through the first connecting rod. The second transmission block moves toward the second supporting rod and pushes the other side of the support frame to rise through the second connecting rod.

[0016] As described above, a lifting transmission mechanism for cooking steaks includes a support frame comprising a first support and a second support located on both sides of the bottom of a baking pan. The transmission component and the connecting rod are located between the first support and the second support, respectively. The supporting rod passes through the first support, the connecting rod, and the second support in sequence, enabling the connecting rod to simultaneously lift the first support and the second support synchronously via the supporting rod.

[0017] A heating device for cooking steaks includes an upper baking pan, a lower baking pan, and a lifting transmission mechanism. The lifting transmission mechanism is used to move the lower baking pan toward the upper baking pan, or to move the lower baking pan away from the upper baking pan.

[0018] The beneficial effects of this utility model are as follows:

[0019] The lifting transmission mechanism of this utility model drives the transmission shaft through the drive assembly, which in turn drives the transmission components and connecting rod assembly to raise or lower the baking pan. By lifting the baking pan, the thickness adjustment range of the steak can be expanded. Whether the steak is thick or thin, it can be cooked within the lifting range. In addition, the mechanical lifting baking pan can also replace the manual pressing of the steak during frying. There is no need to manually press the steak during frying. The top pressure of the mechanical lifting can also achieve double-sided pressing of the steak, strengthen the full contact between the baking pan and the steak, enhance the heating effect of the steak, and make it more convenient for users. Attached Figure Description

[0020] Figure 1 This is a bottom-view perspective view of a lifting transmission mechanism that can be used for cooking steaks according to this utility model.

[0021] Figure 2 This is a cross-sectional front view of a lifting transmission mechanism that can be used for cooking steaks according to this utility model.

[0022] Figure 3 for Figure 1 A magnified view of A.

[0023] Figure 4 This is an enlarged view of the transmission component of this utility model.

[0024] Figure 5 This is a cross-sectional view of the internal structure of the lifting transmission mechanism and heating equipment of this utility model.

[0025] Figure 6 This is a partial anatomical cross-section of the lifting transmission mechanism and heating device of this utility model. Detailed Implementation

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] Example 1:

[0028] like Figures 1 to 3 The lifting transmission mechanism shown includes a fixing component 100 for limiting the installation position, a transmission component mounted on the fixing component 100, and a drive component 7 for providing power. The transmission component includes a drive shaft 2, a transmission element 3, and a linkage assembly.

[0029] The drive assembly 7 drives the transmission shaft 2 to rotate and drives the transmission component 3. The transmission component 3 moves axially along the transmission shaft 2. The transmission component 3 drives the baking pan 8 to rise or fall through the linkage assembly.

[0030] Specifically, in this embodiment, the fixing component 100 is an installation accessory for installation inside the steak cooking equipment. It can fix the installation positions of the transmission component and the drive component 7 to the body shell of the steak cooking equipment. The fixing component 100 is preferably a sheet metal part formed by bending process, which is convenient for design, manufacturing and installation. The drive component 7 can use a motor that can rotate in both directions as a power source. The motor can be connected to the transmission shaft 2 through an adapter shaft so that the transmission shaft 2 can rotate synchronously with the output end of the motor. The transmission component includes a transmission shaft 2 for transmitting power, a transmission component 3 for driving the linkage assembly, and a linkage assembly for driving the grill pan 8. The linkage assembly can be composed of several linkages and hinged parts. When the drive component 7 drives the transmission shaft 2 to rotate, the transmission component 3 rotates along the transmission shaft 2. The central axis of the moving shaft 2 moves in a directional direction, and the connecting rod assembly converts the axial movement of the transmission component 3 into vertical movement, causing the grill pan 8 to rise or fall, thus adjusting the thickness range for steak cooking. Furthermore, the drive component 7, via the transmission component, drives the grill pan 8 located below the steak to press upwards against the steak being heated. Combined with the fixed grill pan above the steak in the steak cooking equipment, the mechanically lifting grill pan 8 can also replace manual pressing of the steak during cooking. No manual pressing is needed during cooking; the mechanical lifting pressure can achieve double-sided pressing of the steak, strengthening the contact between the grill pan and the steak, enhancing the heating effect, and ensuring even heating on both sides of the steak for better cooking results and user convenience.

[0031] Example 2:

[0032] Based on Example 1, such as Figures 1 to 3 The illustrated lifting transmission mechanism for cooking steaks includes a fixed assembly 100 comprising a first fixed support plate 11 and a second fixed support plate 12 through which a drive shaft 2 passes. A transmission member 3 is located on the outer surface of the drive shaft 2 between the first fixed support plate 11 and the second fixed support plate 12. The first fixed support plate 11 is located on the side of the drive shaft 2 closer to the drive assembly 7, and the second fixed support plate 12 is located on the side of the drive shaft 2 away from the drive assembly 7.

[0033] Specifically, in this embodiment, the first fixed support plate 11 and the second fixed support plate 12 preferably adopt an L-shaped sheet metal bending structure. The first fixed support plate 11 and the second fixed support plate 12 support the transmission shaft 2 from both sides, which makes the transmission more stable and avoids damage caused by unilateral force.

[0034] Example 3:

[0035] Based on Example 2, such as Figures 1 to 3The lifting transmission mechanism shown is used for cooking steaks. A first balance support rod 13 and a second balance support rod 14 are installed between the first fixed support plate 11 and the second fixed support plate 12, respectively, and are arranged in parallel on the left and right sides of the transmission member 3. The first balance support rod 13 passes through the left directional hole 33 of the transmission member 3, and the second balance support rod 14 passes through the right directional hole 34 of the transmission member 3. When the transmission member 3 moves, it moves in a direction along the first balance support rod 13 and the second balance support rod 14.

[0036] Specifically, in this embodiment, the first balance support rod 13 and the second balance support rod 14 preferably adopt an optical axis structure. The first balance support rod 13 and the second balance support rod 14 pass through the transmission member 3 from the first fixed support plate 11 to the second fixed support plate 12, forming a balanced force structure with the first fixed support plate 11 and the second fixed support plate 12 as the main supports. The first balance support rod 13 and the second balance support rod 14 are respectively arranged in parallel on the left and right sides of the transmission member 3, so that the transmission member 3 will not be affected by the transmission of the transmission shaft 2 when moving, thus preventing it from rotating around the circumference, further improving the stability of the transmission, and facilitating the directional movement of the transmission member 3.

[0037] Example 4:

[0038] Based on Example 1, such as Figure 4 The above describes a lifting transmission mechanism that can be used for cooking steaks. The transmission component 3 includes a first transmission block 31 and a second transmission block 32. The outer surface of the transmission shaft 2 is provided with an external thread. The first transmission block 31 is provided with a left-hand internal thread, and the second transmission block 32 is provided with a right-hand internal thread. When the transmission shaft 2 rotates, the first transmission block 31 and the second transmission block 32 move closer to each other or further away from each other through the thread transmission.

[0039] Specifically, in this embodiment, the first transmission block 31 performs threaded transmission by engaging the external thread of the transmission shaft 2 with a left-hand internal thread, and the second transmission block 32 performs threaded transmission by engaging the external thread of the transmission shaft 2 with a right-hand internal thread. When the baking pan 8 needs to be raised, the motor of the drive assembly 7 rotates forward, driving the transmission shaft 2 to rotate forward. At this time, the first transmission block 31 and the second transmission block 32 move away from each other along the axial direction of the transmission shaft 2. The first transmission block 31 and the second transmission block 32 drive the connecting rod assembly to push the baking pan 8 to rise. When the baking pan 8 needs to be lowered, the motor of the drive assembly 7 rotates in reverse, driving the transmission shaft 2 to rotate in reverse. At this time, the first transmission block 31 and the second transmission block 32 move closer to each other along the axial direction of the transmission shaft 2. The first transmission block 31 and the second transmission block 32 drive the connecting rod assembly to lower the baking pan 8, thus achieving the lifting and lowering effect of the baking pan 8.

[0040] Specifically, as an optional embodiment, based on embodiment 4, the connecting rods 4 are arranged in opposite directions and cross each other. When the baking tray 8 needs to be lowered, the motor of the drive assembly 7 rotates forward, driving the transmission shaft 2 to rotate forward. At this time, the first transmission block 31 and the second transmission block 32 move away from each other along the axial direction of the transmission shaft 2, and the first transmission block 31 and the second transmission block 32 drive the connecting rod assembly to push the baking tray 8 down. When the baking tray 8 needs to be raised, the motor of the drive assembly 7 rotates in reverse, driving the transmission shaft 2 to rotate in reverse. At this time, the first transmission block 31 and the second transmission block 32 move closer to each other along the axial direction of the transmission shaft 2, and the first transmission block 31 and the second transmission block 32 drive the connecting rod assembly to lift the baking tray 8, which can also achieve the lifting and lowering effect of the baking tray 8.

[0041] Example 5:

[0042] Based on Example 4, such as Figures 2 to 4 The illustrated lifting transmission mechanism for cooking steaks includes a transmission member 3 comprising a transmission hinge portion 35 for hinged linkage assembly. Both ends of the transmission hinge portion 35 are respectively hinged to the linkage member 4 of the linkage assembly. The central axis of the transmission hinge portion 35 is inclined to the moving direction of the transmission member 3.

[0043] Specifically, in this embodiment, the transmission hinge 35 is an integrally formed fixed structure of the transmission member 3, the connecting rod 4 is a straight handle connecting rod structure, the transmission hinge 35 is connected to the connecting rod 4 by a pin, and the central axis of the inner threaded hole 36 of the transmission hinge 35 is inclined to the moving direction of the transmission member 3, preferably perpendicular to the moving direction of the transmission member 3, so that the horizontal directional movement of the transmission member 3 can be converted into the vertical lifting and lowering movement of the baking pan 8 through the connecting rod 4.

[0044] Example 6:

[0045] Based on Example 4, such as Figure 2 The lifting transmission mechanism shown is used for cooking steaks. The end of the connecting rod 4 away from the transmission member 3 is higher than the end close to the transmission member 3. When the distance between the first transmission block 31 and the second transmission block 32 is the minimum value of the stroke range, the connecting rod 4 forms a horizontal angle α with the horizontal plane. The angle α is greater than 0.5 degrees.

[0046] Specifically, in this embodiment, to avoid dead points or jamming of the connecting rod 4 during the linkage movement, when the baking pan 8 is lowered to the lowest position, the end of the connecting rod 4 away from the transmission member 3 is higher than the end close to the transmission member 3. The end of the connecting rod 4 close to the transmission member 3 is the low point, and the end of the connecting rod 4 away from the transmission member 3 is the high point. The connecting rod 4 still maintains a small angle of inclination relative to the horizontal plane, so that it will not be completely parallel to the horizontal plane. Preferably, when the distance between the first transmission block 31 and the second transmission block 32 is at the minimum value of the stroke range, the connecting rod 4 adopts a connecting rod horizontal angle α with an angle greater than 0.5 degrees with the horizontal plane, so that the connecting rod 4 always maintains an inclined posture with the horizontal plane, and can meet the pushing of the transmission member 3 at any time.

[0047] Example 7:

[0048] Based on Example 1, such as Figures 1 to 2 The lifting transmission mechanism shown can be used for cooking steak. The linkage assembly includes a linkage 4 hinged to the transmission component 3 and a support frame 6 installed at the bottom of the baking pan 8. The linkage 4 is hinged to the support frame 6 via a support rod 5.

[0049] When the drive shaft 2 drives the drive component 3 to move toward the direction of the corresponding connected support rod 5, the drive component 3 drives the support frame 6 to rise vertically through the connecting rod 4; or when the drive shaft 2 drives the drive component 3 to move away from the corresponding connected support rod 5, the drive component 3 drives the support frame 6 to fall vertically through the connecting rod 4.

[0050] Specifically, in this embodiment, the connecting rod 4 is a straight shank connecting rod constituting the connecting rod assembly. The connecting rod 4 has hinged through holes at both ends along its length. One end of the connecting rod 4 is hinged to the transmission member 3, and the other end is hinged to the supporting rod 5. The supporting rod 5 passes through the connecting rod 4 and is hinged to the support frame 6, enabling the connecting rod 4 to drive the support frame 6 to rise or fall via the supporting rod 5, indirectly driving the baking pan 8 mounted on the support frame 6 to rise or fall. More specifically, the drive assembly... The motor of component 7 drives the transmission shaft 2 to rotate through the adapter shaft. The transmission shaft 2 drives the transmission component 3 to move axially. When the transmission component 3 moves toward the support rod 5 connected to the corresponding connecting rod 4, the transmission component 3 pushes the support frame 6 to rise vertically through the connecting rod 4. When the transmission shaft 2 drives the transmission component 3 to move away from the support rod 5 connected to the corresponding connecting rod 4, the transmission component 3 drives the support frame 6 to fall vertically through the connecting rod 4, thus realizing the lifting and lowering movement of the baking tray 8 through the support frame 6.

[0051] Example 8:

[0052] Based on Example 7, such as Figures 1 to 3The illustrated lifting transmission mechanism for cooking steaks includes a transmission component 3 comprising a first transmission block 31 and a second transmission block 32, a connecting rod 4 comprising a first connecting rod 41 and a second connecting rod 42, and a supporting rod 5 comprising a first supporting rod 51 and a second supporting rod 52. The transmission component 3 is located between the first supporting rod 51 and the second supporting rod 52. The first transmission block 31 moves toward the direction closer to the first supporting rod 51 and pushes one side of the support frame 6 to rise through the first connecting rod 41. The second transmission block 32 moves toward the direction closer to the second supporting rod 52 and pushes the other side of the support frame 6 to rise through the second connecting rod 42.

[0053] Specifically, in this embodiment, two transmission components 3 move in opposite directions. The first transmission block 31 has a left-hand internal thread, and the second transmission block 32 has a right-hand internal thread. When the transmission shaft 2 rotates, the first transmission block 31 and the second transmission block 32 move closer to or further away from each other through threaded transmission. The movement range of the first transmission block 31 and the second transmission block 32 is within the space between the first support rod 51 and the second support rod 52. As shown in the figure, one end of the first connecting rod 41 is hinged to the first transmission block 31, and the other end of the first connecting rod 41 is hinged to the first support rod 52. One end of the support rod 51 and the second connecting rod 42 are hinged to the second transmission block 32, and the other end of the second connecting rod 42 is hinged to the second support rod 52. In use, the motor drives the transmission shaft 2 to rotate, the first transmission block 31 moves toward the direction close to the first support rod 51 and pushes one side of the support frame 6 to rise through the first connecting rod 41, and the second transmission block 32 moves toward the direction close to the second support rod 52 and pushes the other side of the support frame 6 to rise through the second connecting rod 42. This realizes the stable lifting of the baking tray 8 by the support frame 6 through the directional movement of the first transmission block 31 and the second transmission block 32.

[0054] Example 9:

[0055] Based on Example 7, such as Figure 1 The illustrated lifting transmission mechanism for cooking steaks includes a support frame 6 comprising a first support 61 and a second support 62 located on both sides of the bottom of a baking pan 8. A transmission component and a connecting rod 4 are located between the first support 61 and the second support 62. A support rod 5 passes through the first support 61, the connecting rod 4, and the second support 62 in sequence, enabling the connecting rod 4 to simultaneously drive the first support 61 and the second support 62 to rise synchronously via the support rod 5.

[0056] Specifically, in this embodiment, two support brackets 6 are respectively provided on both sides of the bottom of the baking pan 8 to facilitate maintaining the balance of lifting force. The first bracket 61 and the second bracket 62 can be symmetrically arranged. The transmission component and the connecting rod 4 are respectively located in the space between the first bracket 61 and the second bracket 62, so that the distance between the first bracket 61 and the second bracket 62 is relatively far apart, which can better maintain the balance of lifting force. More specifically, the support rod 5 passes through the first bracket 61, the connecting rod 4 and the second bracket 62 in sequence, so that when the connecting rod 4 is pushed, the first bracket 61 and the second bracket 62 located on both sides of the rod are lifted at the same time by the support rod 5, or when the connecting rod 4 is pulled down, the first bracket 61 and the second bracket 62 located on both sides of the rod are lowered at the same time by the support rod 5. This realizes that the lifting balance of the baking pan 8 is further enhanced by setting support brackets 6 on both sides.

[0057] Example 10:

[0058] like Figures 5 to 6 The heating device shown includes an upper baking pan 81, a lower baking pan 82, and a lifting transmission mechanism as described in any of the above embodiments. The lifting transmission mechanism is used to move the lower baking pan 82 toward the direction closer to the upper baking pan 81, or the lifting transmission mechanism is used to move the lower baking pan 82 away from the upper baking pan 81.

[0059] Specifically, in this embodiment, the upper baking pan 81 is a baking pan structure set at the top inside the heating device, and the lower baking pan 82 is a baking pan structure set at the bottom inside the heating device. The lifting transmission mechanism is installed at the bottom of the lower baking pan 82 and controls the raising or lowering of the lower baking pan 82 through the transmission component and the drive component. Preferably, the transmission structure uses a transmission shaft 2 to drive the transmission component 3 to push the connecting rod assembly to implement the lifting and lowering movement of the lower baking pan 82, thereby adjusting the thickness of the steak.

[0060] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A lifting drive mechanism for use in cooking steaks, characterized by: The utility model relates to a fixing assembly (100) for limiting installation position, a transmission assembly installed on the fixing assembly (100) and a driving assembly (7) for providing power, the transmission assembly comprises a transmission shaft (2), a transmission part (3) and a connecting rod assembly; The driving assembly (7) drives the transmission shaft (2) to rotate and drives the transmission part (3), the transmission part (3) moves along the axial orientation of the transmission shaft (2), and the transmission part (3) drives the baking tray (8) to rise or fall through the connecting rod assembly.

2. The lifting transmission mechanism for cooking beef steaks according to claim 1, characterized in that: The fixing assembly (100) comprises a first fixed support plate (11) and a second fixed support plate (12) through which the transmission shaft (2) passes, the transmission part (3) is located on the outer surface of the transmission shaft (2) between the first fixed support plate (11) and the second fixed support plate (12), the first fixed support plate (11) is located on the side of the transmission shaft (2) close to the driving assembly (7), and the second fixed support plate (12) is located on the side of the transmission shaft (2) away from the driving assembly (7).

3. The lifting transmission mechanism for cooking beef steaks according to claim 2, characterized in that: First balance support rods (13) and second balance support rods (14) are installed between the first fixed support plate (11) and the second fixed support plate (12) and are arranged in parallel on the left side and the right side of the transmission part (3) respectively, the first balance support rod (13) passes through the left directional hole (33) of the transmission part (3), the second balance support rod (14) passes through the right directional hole (34) of the transmission part (3), and the transmission part (3) moves along the first balance support rod (13) and the second balance support rod (14) in the directional movement.

4. The lifting transmission mechanism for cooking beefsteak according to claim 1, wherein: The transmission part (3) comprises a first transmission block (31) and a second transmission block (32), the outer surface of the transmission shaft (2) is provided with external threads, the first transmission block (31) is provided with left-handed internal threads, the second transmission block (32) is provided with right-handed internal threads, and when the transmission shaft (2) rotates, the first transmission block (31) and the second transmission block (32) are close to or away from each other through threaded transmission.

5. The lift drive mechanism for cooking steaks according to claim 4, wherein: The transmission part (3) comprises a transmission hinging part (35) for hinging the connecting rod assembly, the two ends of the transmission hinging part (35) are respectively hinged to connecting rod pieces (4) of the connecting rod assembly, and the central axis of the transmission hinging part (35) is inclined to the movement direction of the transmission part (3).

6. The lift drive mechanism for cooking steaks according to claim 5, wherein: The end of the connecting rod piece (4) away from the transmission part (3) is higher than the end close to the transmission part (3), when the distance between the first transmission block (31) and the second transmission block (32) is the minimum value of the stroke range, a connecting rod horizontal included angle a is formed between the connecting rod piece (4) and the horizontal plane, and the angle of the connecting rod horizontal included angle a is greater than 0.5 degrees.

7. The lift drive mechanism for cooking steaks according to claim 1, wherein: The connecting rod assembly comprises a connecting rod piece (4) hinged to the transmission part (3) and a supporting frame (6) installed at the bottom of the baking tray (8), and the connecting rod piece (4) is hinged to the supporting frame (6) through a supporting support rod (5). When the transmission shaft (2) drives the transmission member (3) to move towards the direction of approaching the supporting strut (5) connected correspondingly, the transmission member (3) drives the supporting frame (6) to rise along the vertical direction through the connecting rod member (4), or when the transmission shaft (2) drives the transmission member (3) to move towards the direction of moving away from the supporting strut (5) connected correspondingly, the transmission member (3) drives the supporting frame (6) to descend along the vertical direction through the connecting rod member (4).

8. The lift drive mechanism for cooking steaks according to claim 7, wherein: The transmission member (3) comprises a first transmission block (31) and a second transmission block (32), the connecting rod member (4) comprises a first connecting rod (41) and a second connecting rod (42), the supporting strut (5) comprises a first supporting rod (51) and a second supporting rod (52), the transmission member (3) is located between the first supporting rod (51) and the second supporting rod (52), the first transmission block (31) moves towards the direction of approaching the first supporting rod (51) and pushes one side of the supporting frame (6) to rise through the first connecting rod (41), and the second transmission block (32) moves towards the direction of approaching the second supporting rod (52) and pushes the other side of the supporting frame (6) to rise through the second connecting rod (42).

9. The lift drive mechanism for cooking steaks according to claim 7, wherein: The supporting frame (6) comprises a first supporting frame (61) and a second supporting frame (62) located on both sides of the bottom of the baking tray (8) respectively, the transmission assembly and the connecting rod member (4) are located between the first supporting frame (61) and the second supporting frame (62) respectively, and the supporting strut (5) passes through the first supporting frame (61), the connecting rod member (4) and the second supporting frame (62) in sequence, so that the connecting rod member (4) can drive the first supporting frame (61) and the second supporting frame (62) to rise synchronously through the supporting strut (5) at the same time.

10. A heating apparatus usable for cooking steaks, characterized by: The lifting transmission mechanism as claimed in any one of claims 1-9 is used to drive the lower baking tray (82) to move towards the direction of approaching the upper baking tray (81), or the lifting transmission mechanism is used to drive the lower baking tray (82) to move towards the direction of moving away from the upper baking tray (81).

Images