Lifting rod type frying and baking device with adjustable baking tray gap

Abstract

The utility model discloses a lifting rod type frying and baking device with adjustable baking tray clearance, which relates to the technical field of electric appliances and comprises a lower baking tray group, an upper baking tray group, a lifting rod group and a spring component, the upper baking tray group is mounted on the lifting rod group, and the spring component is arranged between the lifting rod group and the upper baking tray group. The mounting height of the upper baking tray group is adjusted according to pressure, so that the gap between the upper baking tray group and the lower baking tray group is automatically adjusted. The spring assembly can adjust the gap between the upper baking tray set and the lower baking tray set in a self-adaptive mode according to the thickness change of food materials, it is guaranteed that the bottom of the upper baking tray set abuts against the surfaces of the food materials all the time, and therefore the problems that the food materials are heated unevenly, and the cooking effect is poor are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a lifting rod type grilling device with adjustable grill plate gap. Background Art

[0002] A lifting rod grill usually includes an upper grill, a lower grill, and a lifting rod. When in use, the lifting rod drives the upper grill to rise or fall, thereby adjusting the grilling gap between the upper grill and the lower grill. Traditional lifting rod grills usually have two or three fixed height adjustment levels for the upper grill to facilitate switching between grilling or baking modes. However, this fixed-level adjustment method ignores the thickness of the food itself. The user cannot flexibly adjust the distance between the two grills according to the thickness of the food, which can easily lead to problems such as uneven heating of the food and poor cooking results.

[0003] In order to solve this problem, a Chinese patent with the announcement number CN203506454U discloses a grill with a lifting mechanism, which uses a height adjustment mechanism in which a screw and a nut cooperate with each other to realize stepless manual adjustment of the upper grill plate, so that the user can adjust and position the height of the upper grill plate according to the different thicknesses of the food, thereby flexibly obtaining a heating space of any suitable thickness. However, this solution still has the following problems:

[0004] First, in actual application, as the cooking process changes, the thickness of the ingredients will change, such as expansion or contraction due to heat. However, the height of the upper baking tray in this solution can only be adjusted manually, and cannot be adaptively adjusted according to the changes in the thickness of the ingredients. Therefore, it is still impossible to achieve the purpose of accurately controlling the cooking degree of browning and doneness, and there is still room for improvement.

[0005] Secondly, this solution provides a guiding and positioning mechanism between the lifting rod and the upper baking tray, which can ensure that the upper baking tray and the lifting rod are parallel to each other during the adjustment process. However, when there is a certain angle between the lifting rod and the lower baking tray, there will also be an angle between the upper baking tray and the lower baking tray, which will cause uneven force on the ingredients between the upper and lower baking trays, thereby affecting the heat conduction efficiency and cooking effect.

[0006] Thirdly, this scheme adopts the spiral transmission method of rotating the nut and moving the screw up and down to achieve the height adjustment of the upper baking tray. This requires that the bottom of the driving nut must be rotatably embedded in the lifting rod, but the assembly process of this installation method is relatively complicated, which affects the production efficiency and increases the production cost. Summary of the invention

[0007] The utility model provides a lifting rod type grilling device with adjustable grill plate gap, the main purpose of which is to solve the problems existing in the prior art.

[0008] The utility model adopts the following technical solutions:

[0009] A lifting rod type grilling device with adjustable grilling plate gap comprises a base, a lower grilling plate group, an upper grilling plate group and a lifting rod group, wherein the upper grilling plate group is installed on the lifting rod group, and is characterized in that it also comprises a spring assembly, wherein the spring assembly is arranged between the lifting rod group and the upper grilling plate group, and is used to adjust the installation height of the upper grilling plate group according to pressure, thereby automatically adjusting the gap between the upper grilling plate group and the lower grilling plate group.

[0010] Furthermore, it also includes a screw assembly, and the upper baking tray assembly can be installed on the lifting rod assembly to be lifted up and down through the screw assembly, so as to manually adjust the gap between the upper baking tray assembly and the lower baking tray assembly.

[0011] Furthermore, the lifting rod assembly has a support frame that penetrates through the interior of the upper baking pan assembly, and the upper baking pan assembly is adjustably arranged on the support frame through the spring assembly and the screw assembly.

[0012] Furthermore, the support frame is provided with a plurality of sliding holes; the spring assembly includes a plurality of groups of guide rods and springs that cooperate with each other, one end of the guide rod can be movably arranged in the sliding hole up and down, and the other end of the guide rod is fixedly connected to the upper baking pan group; the spring is sleeved on the outside of the guide rod and abuts between the upper baking pan group and the support frame.

[0013] Furthermore, the upper grilling plate group includes an upper grilling plate, an upper heating plate arranged above the grilling plate, and a shell covering the upper grilling plate and the upper heating plate; the upper heating plate is provided with a recessed portion, and the other end of the guide rod passes through the recessed portion and is fixedly connected to the upper grilling plate.

[0014] Furthermore, a limiting groove is provided in the sliding hole, one end of the guide rod passes through the sliding hole, and a limiting boss abutting against the limiting groove is provided.

[0015] Furthermore, the screw assembly includes a rotating handle, an adjusting screw and a fixing nut; the support frame is provided with a through hole and the fixing nut; the adjusting screw is inserted into the fixing nut and the through hole, one end of the adjusting screw extends to the top of the shell and is provided with the rotating handle, and the other end of the adjusting screw is rotatably connected to the upper heating plate.

[0016] Furthermore, a mounting hole is provided at the bottom of the upper heating plate, and an annular recess is provided at the bottom of the mounting hole. The adjusting screw is rotatably inserted into the mounting hole, and an annular boss abutting against the annular recess is provided.

[0017] Furthermore, strip holes for the support frame to pass through are provided at both ends of the shell, and a cover plate for covering the strip holes is provided outside the shell.

[0018] Furthermore, the lifting rod assembly is provided with a handle, and the handle is vertically provided with a positioning column that abuts against the lower baking pan assembly.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The spring assembly of the utility model can adaptively adjust the installation height of the upper baking tray group according to the thickness change of the food itself, so as to flexibly adjust the gap between the upper baking tray group and the lower baking tray group, ensuring that the bottom of the upper baking tray group is always in contact with the surface of the food, thereby avoiding problems such as uneven heating of the food and poor cooking effect.

[0021] 2. The utility model has a positioning column vertically disposed on the handle which is in contact with the lower baking tray. During the process of the upper baking tray group being flipped and closed, the positioning column can play a limiting role, thereby preventing the upper baking tray group from flipping over too large an angle and ensuring that the upper baking tray group is completely flipped over to be parallel to the lower baking tray group, thereby avoiding uneven force on the food due to the existence of an angle between the upper baking tray group and the lower baking tray group.

[0022] 3. The screw assembly of the utility model mounts the upper baking tray assembly on the annular boss of the adjusting screw, so the structure is more optimized and the installation is simpler, which is beneficial to improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is a cross-sectional schematic diagram of the upper baking tray assembly of the utility model when it is closed.

[0025] Figure 3 It is a cross-sectional schematic diagram of the upper baking tray assembly of the utility model when it is opened.

[0026] Figure 4 It is a structural schematic diagram of the upper baking tray group in the utility model.

[0027] Figure 5 It is a schematic diagram of the internal structure of the upper baking tray group in the utility model.

[0028] In the figure: 1-base; 11-pivot seat; 12-decorative shell; 2-lower baking tray group; 21-lower grilling tray; 3-upper baking tray group; 31-grilling tray; 32-upper heating tray; 321-relief recess; 322-annular recess; 33-shell; 331-cover plate; 4-lifting rod group; 41-connecting frame; 411-connecting rod; 412-arc rod; 42-hinge; 421-rotating shaft; 422-connecting piece ;43-support frame;431-connecting plate;432-support rod;44-handle;441-positioning column;5-driving mechanism;51-electric push rod;52-mounting seat;53-micro switch;54-tension spring;6-height adjustment mechanism;61-guide rod;611-limiting boss;62-spring;63-rotating handle;64-adjusting screw;641-annular boss;65-fixing nut. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0030] Reference Figures 1 to 4 The present embodiment provides a lifting rod type grilling device with adjustable grilling pan gap, comprising a base 1, a lower grilling pan group 2, an upper grilling pan group 3, a lifting rod group 4, a driving mechanism 5 and a height adjustment mechanism 6; the lower grilling pan group 2 is arranged on the base 1, the upper grilling pan group 3 is installed on the lifting rod group 4, and the lifting rod group 4 is flippably arranged beside the lower grilling pan group 2 of the base 1. The lifting rod group 4 can be flipped by the driving mechanism 5, thereby driving the upper grilling pan group 3 and the lower grilling pan group 2 to open and close each other; the installation height between the upper grilling pan group 3 and the lifting rod group 4 can be adjusted by the height adjustment mechanism 6, thereby adjusting the gap between the upper grilling pan group 3 and the lower grilling pan group 2.

[0031] Reference Figure 1 Preferably, the overall layout of the lifting rod type grilling device is as follows: the lower grilling plate group 2 includes a lower grilling plate 21 and a lower heating plate (not shown in the figure), the two lower heating plates are arranged side by side on the base 1, and a lower grilling plate 21 is detachably arranged above the two lower heating plates; the base 1 is provided with an upper grilling plate group 3, a lifting rod group 4, a driving mechanism 5 and a height adjustment mechanism 6 that cooperate with each other on both sides of the two lower heating plates. The lifting rod type grilling device is large in scale and can be used as a commercial double-sided grilling stove, and is widely used in shopping malls, canteens, hotels and other catering places.

[0032] The main innovation of this embodiment lies in the structural design of the driving mechanism 5 and the height adjustment mechanism 6. In order to more clearly explain the innovation, the relevant structure of the driving mechanism 5 is first analyzed in detail below:

[0033] Reference Figures 2 to 4, a connecting frame 41 is provided at one end of the lifting rod group 4, and the connecting frame 41 is pivotally connected to the base 1 through a hinge 42; a driving mechanism 5 is arranged in the base 1, and is drivingly connected to the connecting frame 41, and is used to drive the lifting rod group 4 to rotate around the hinge 42, thereby driving the upper baking pan group 3 to realize the opening and closing operation. In this embodiment, a connecting frame 41 is provided at the end of the lifting rod group 4, and the connecting frame 41 is directly driven by the driving mechanism 5 to flip around the hinge 42. Since there is a certain torque between the force point of the connecting frame 41 and the rotation point of the hinge 42, it can play the role of a labor-saving lever. Therefore, directly driving the connecting frame 41 can effectively reduce the driving force of the driving mechanism 5, and can ensure that the lifting rod group 4 can smoothly drive the upper baking pan group 3 to flip, thereby solving the shortcomings of the prior art.

[0034] Reference Figures 2 to 4 The connecting frame 41 includes a connecting rod 411 and an arc rod 412 fixed at both ends of the connecting rod 411. The middle part of the connecting rod 411 is connected to the driving mechanism 5, and the arc rod 412 is connected to the hinge 42. The connecting frame 41 is an arc-shaped frame structure as a whole, and can be smoothly rotated around the hinge 42 under the drive of the driving mechanism 5, and the structure is more stable and reliable.

[0035] Reference Figures 2 to 4 The base 1 is provided with a pivot seat 11 beside the lower grill set 2, and a decorative shell 12 covering the outside of the pivot seat 11. The hinge 42 includes a rotating shaft 421 and a connecting piece 422. The rotating shaft 421 is installed in the pivot seat 11, and the two ends of the rotating shaft 421 are provided with connecting pieces 422 connected to the arc rod 412. The connecting piece 422 can play the role of a force arm, so that there is a certain torque between the arc rod 412 and the rotating shaft 421, thereby forming a labor-saving lever, so that the driving mechanism 5 can easily drive the connecting frame 41 to achieve flipping.

[0036] Reference Figure 2 and Figure 3 The driving mechanism 5 is an electric push rod 51 or a cylinder, and one end of the driving mechanism 5 is hinged in the base 1 through the mounting seat 52, and the other end is hinged to the middle of the connecting rod 411 of the connecting frame 41. The driving mechanism 5 in this embodiment is preferably an electric push rod 51. In order to realize automatic control, two micro switches 53 for detecting the flipping angle of the lifting rod group 4 are also provided in the base 1 in this embodiment. Both micro switches 53 are controlled and connected to the electric push rod 51. During the flipping process, if the lifting rod group 4 touches the micro switch 53, the electric push rod 51 stops moving, thereby controlling the opening and closing angle of the upper baking tray group 3 within a reasonable range.

[0037] Reference Figure 2 and Figure 3, a tension spring 54 is provided on both sides of the driving mechanism 5, one end of the tension spring 54 is connected to the base 1, and the other end is connected to the connecting rod 411 of the connecting frame 41. The sum of the tension of the two tension springs 54 is close to the mechanical gravity of the upper baking tray. When the upper baking tray group 3 is opened, the electric push rod 51 is retracted, and the connecting frame 41 is simultaneously subjected to the tension of the electric push rod 51, the tension of the tension spring 54 and the mechanical gravity of the upper baking tray group 3, but the tension of the tension spring 54 can offset the mechanical gravity of the upper baking tray group 3, so the electric push rod 51 can more easily drive the upper baking tray to flip open; when the upper baking tray group 3 is closed, the electric push rod 51 is extended, and the connecting frame 41 is simultaneously subjected to the thrust of the electric push rod 51, the elastic force of the tension spring 54 and the mechanical gravity of the upper baking tray group 3, but the elastic force of the tension spring 54 can offset the mechanical gravity of the upper baking tray group 3, so it can play a buffering effect, ensuring that the upper baking tray group 3 is flipped and closed more smoothly. It can be seen that by arranging the tension spring 54 beside the driving mechanism 5, not only can the driving force of the driving mechanism 5 be reduced, ensuring that the upper baking tray can be flipped open more easily, but also a buffering effect can be achieved, ensuring that the upper baking tray group 3 can be flipped and closed more smoothly.

[0038] Reference Figures 1 to 3 The upper grill set 3 is installed in the middle of the lifting rod set 4, and a handle 44 is provided at the other end of the lifting rod set 4. The handle 44 is vertically provided with a positioning column 441 that abuts against the lower grill set 2. During the process of turning over and closing the upper grill set 3, the positioning column 441 can play a limiting role, which can prevent the upper grill set 3 from turning over too much, and can ensure that the upper grill set 3 is completely turned over to be parallel to the lower grill set 2, thereby avoiding the angle between the upper grill set 3 and the lower grill set 2, which causes uneven force on the food.

[0039] The following is a detailed analysis of the relevant structure of the height adjustment mechanism 6:

[0040] Reference Figures 1 to 4 The lifting rod group 4 has a support frame 43 that runs through the upper baking tray group 3. The upper baking tray group 3 can be raised and lowered on the support frame 43 through a height adjustment mechanism 6, so that the gap between the upper baking tray group 3 and the lower baking tray group 2 can be flexibly adjusted to avoid problems such as uneven heating of ingredients and poor cooking effect.

[0041] Reference Figure 2 , Figure 3 and Figure 5 The height adjustment mechanism 6 includes a spring assembly, which is arranged between the support frame 43 and the upper baking tray group 3, and is used to adjust the installation height of the upper baking tray group 2 according to the pressure, thereby automatically adjusting the gap between the upper baking tray group 3 and the lower baking tray group 2.

[0042] Reference Figure 2 , Figure 3 and Figure 5Specifically, the spring assembly includes a plurality of groups of guide rods 61 and springs 62 that cooperate with each other; the support frame 43 is provided with a plurality of sliding holes, one end of the guide rod 61 can be movably arranged in the sliding hole, and the other end of the guide rod 61 is fixedly connected to the upper baking tray group 3; the spring 62 is sleeved on the outside of the guide rod 61 and abuts between the upper baking tray group 3 and the support frame 43. When the thickness of the food between the upper baking tray group 3 and the lower baking tray group 2 changes, the food pressure on the bottom of the upper baking tray group 3 will also change. At this time, the spring 62 will generate reverse elastic potential energy when it is deformed, so as to automatically adjust the height between the upper baking tray group 3 and the support frame 43, thereby ensuring that the bottom of the upper baking tray group 3 always abuts against the surface of the food, so that the upper baking tray group 3 can adaptively adjust its installation height according to the change of the thickness of the food itself.

[0043] Reference Figure 4 and Figure 5 Specifically, the upper grilling pan assembly 3 includes an upper grilling pan 31, an upper heating pan 32 disposed above the upper grilling pan 31, and a shell 33 covering the upper grilling pan 31 and the upper heating pan 32; the upper heating pan 32 is provided with a recessed portion 321, and the other end of the guide rod 61 passes through the recessed portion 321 and is fixedly connected to the upper grilling pan 31, thereby ensuring that the spring 62 can sensitively adjust the height between the upper grilling pan 31 and the support frame 43 according to the pressure between the upper grilling pan 31 and the food, thereby accurately adjusting the installation height of the upper grilling pan assembly 3.

[0044] Reference Figure 5 A limiting groove is provided in the slide hole, one end of the guide rod 61 passes through the slide hole, and a limiting boss 611 is provided to abut against the limiting groove. The limiting boss 611 can effectively limit the minimum installation height of the upper baking tray assembly 3, and can also play a connecting role, ensuring that the upper baking tray assembly 3 is stably connected to the support frame 43 when it is at the minimum installation height.

[0045] Reference Figure 2 and Figure 5 The height adjustment mechanism 6 also includes a screw assembly, which includes a rotating handle 63, an adjusting screw 64 and a fixing nut 65; a through hole is provided in the middle of the support frame 43, and a fixing nut 65 is provided; the adjusting screw 64 is inserted into the fixing nut 65 and the through hole, one end of the adjusting screw 64 extends to the top of the housing 33, and a rotating handle 63 is provided, and the other end of the adjusting screw 64 is rotatably connected to the upper heating plate 32. The rotating handle 63 can drive the adjusting screw 64 to rotate, thereby driving the upper baking tray group 3 to rise and fall compared to the support frame 43, thereby realizing stepless manual adjustment of the installation height of the upper baking tray.

[0046] Reference Figures 2 to 5More specifically, a mounting hole is provided at the bottom of the upper heating plate 32, and an annular recess 322 is provided at the bottom of the mounting hole. The adjusting screw 64 is rotatably inserted into the mounting hole, and an annular boss 641 is provided to abut against the annular recess 322. With such a design, the upper baking plate set 3 can be mounted on the annular boss 641 of the adjusting screw 64, the structure is more optimized, and the installation is simpler, which is conducive to improving production efficiency and reducing production costs.

[0047] Reference Figure 2 and Figure 5 The support frame 43 includes a connecting plate 431 and supporting rods 432 disposed at both ends of the connecting plate 431. A through hole and a fixing nut 65 are disposed in the middle of the connecting plate 431. The screw assembly is disposed in the middle of the connecting plate 431, so that the height of the upper baking tray group 3 can be adjusted smoothly to avoid the angle between the upper baking tray group 3 and the lower baking tray group 2 affecting the cooking effect. As a preferred solution, the supporting rod 432 and the arc rod 412 are an integrated structure with higher structural strength. After cooperating with the connecting rod 411, the connecting plate 431 and the handle 44, a stable and reliable lifting rod group 4 can be formed.

[0048] Reference Figure 4 , strip holes for the support frame 43 to pass through are provided at both ends of the shell 33, and a cover plate 331 for shielding the strip holes is provided outside the shell 33. The strip holes are designed according to the movement path of the upper baking tray group 3, and can play a guiding and limiting role. The cover plate 331 can effectively shield the structure in the strip holes, ensuring the sealing and overall aesthetics of the upper baking tray group 3.

[0049] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A lifting rod type grilling device with adjustable grilling pan gap, comprising a lower grilling pan group, an upper grilling pan group and a lifting rod group, wherein the upper grilling pan group is mounted on the lifting rod group, and characterized in that: It also includes a spring assembly, which is arranged between the lifting rod assembly and the upper baking tray assembly and is used to adjust the installation height of the upper baking tray assembly according to the pressure, thereby automatically adjusting the gap between the upper baking tray assembly and the lower baking tray assembly.

2. The lifting rod type grilling device with adjustable grill plate gap according to claim 1, characterized in that: It also includes a screw assembly, through which the upper baking tray assembly can be installed on the lifting rod assembly so as to be lifted up and down, and is used for manually adjusting the gap between the upper baking tray assembly and the lower baking tray assembly.

3. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 2, characterized in that: The lifting rod assembly has a support frame which penetrates the interior of the upper baking pan assembly, and the upper baking pan assembly is adjustably arranged on the support frame through the spring assembly and the screw assembly.

4. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 3, characterized in that: The support frame is provided with a plurality of sliding holes; the spring assembly includes a plurality of groups of guide rods and springs that cooperate with each other, one end of the guide rod can be movably arranged in the sliding hole up and down, and the other end of the guide rod is fixedly connected to the upper baking pan group; the spring is sleeved on the outside of the guide rod and abuts between the upper baking pan group and the support frame.

5. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 4, characterized in that: The upper grilling plate assembly comprises an upper grilling plate, an upper heating plate arranged above the grilling plate, and a shell covering the upper grilling plate and the upper heating plate; the upper heating plate is provided with a recessed portion, and the other end of the guide rod passes through the recessed portion and is fixedly connected to the upper grilling plate.

6. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 4, characterized in that: A limiting groove is arranged in the sliding hole, one end of the guide rod passes through the sliding hole and is provided with a limiting boss abutting against the limiting groove.

7. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 5, characterized in that: The screw assembly includes a rotating handle, an adjusting screw and a fixing nut; the support frame is provided with a through hole and the fixing nut; the adjusting screw is inserted into the fixing nut and the through hole, one end of the adjusting screw extends to the top of the shell and is provided with the rotating handle, and the other end of the adjusting screw is rotatably connected to the upper heating plate.

8. The lifting rod type grilling device with adjustable grill plate gap according to claim 7, characterized in that: The bottom of the upper heating plate is provided with a mounting hole, and an annular recess is provided at the bottom of the mounting hole. The adjusting screw is rotatably inserted in the mounting hole, and is provided with an annular boss abutting against the annular recess.

9. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 5, characterized in that: The two ends of the shell are provided with strip holes for the support frame to pass through, and the outside of the shell is provided with a cover plate for covering the strip holes.

10. The lifting rod type grilling device with adjustable grill plate gap as claimed in claim 3, characterized in that: The lifting rod assembly is provided with a handle, and the handle is vertically provided with a positioning column that abuts against the lower baking tray assembly.

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