阅读说明：本技术 一种变频式微波炉 (Frequency conversion type microwave oven ) 是由 叶子豪 董昌永 于 2021-05-19 设计创作，主要内容包括：本发明属于微波炉领域,具体的说是一种变频式微波炉；包括壳体、烹调腔、转盘、炉门、磁控管、搅拌器和控制器；该变频微波炉还包括滑杆、螺杆、遮挡块、一号定位孔、二号定位孔、一号通孔和二号通孔；所述滑杆一端位于二号定位孔内部,另一端位于二号通孔内部；所述遮挡块一端与滑杆滑动连接,另一端与螺杆转动连接；本发明在烹调腔上方设有遮挡块,再与遮挡块倾斜连接滑杆和螺杆相配合,从而达到食物蒸发产生的水分和油都吸附在遮挡块表面的目的,进而避免了壳体顶部靠近烹调腔的端面吸附油脂,同时避免了端面的脏物在微波食物的状态下滴落,对食物造成影响；使得变频微波炉的加热效率得到提高,微波食物的品质达到提高。(The invention belongs to the field of microwave ovens, in particular to a variable frequency microwave oven; comprises a shell, a cooking cavity, a rotary table, a furnace door, a magnetron, a stirrer and a controller; the variable frequency microwave oven also comprises a slide bar, a screw rod, a blocking block, a first positioning hole, a second positioning hole, a first through hole and a second through hole; one end of the sliding rod is positioned in the second positioning hole, and the other end of the sliding rod is positioned in the second through hole; one end of the shielding block is connected with the sliding rod in a sliding mode, and the other end of the shielding block is connected with the screw in a rotating mode; according to the microwave oven, the blocking block is arranged above the cooking cavity and is matched with the blocking block inclined connecting sliding rod and the screw rod, so that the purpose that water and oil generated by food evaporation are absorbed on the surface of the blocking block is achieved, the phenomenon that the end face of the top of the shell, close to the cooking cavity, adsorbs the oil is further avoided, and meanwhile, the phenomenon that dirt on the end face drips under the state of microwave food and influences the food is avoided; the heating efficiency of the frequency conversion microwave oven is improved, and the quality of microwave food is improved.)

1. A variable frequency microwave oven includes a case (1), a cooking cavity (11), a turntable (111), an oven door (12), a magnetron (2), a stirrer (3) and a controller; a cooking cavity (11) is arranged in the shell (1); the method is characterized in that: the variable frequency microwave oven also comprises a slide bar (13), a screw (14), a baffle plate (15), a first positioning hole (131), a second positioning hole (141), a first through hole (132) and a second through hole (142); a first positioning hole (131) is formed in the bottom of the shell (1); the first positioning hole (131) is far away from the oven door (12) and far away from the magnetron (2); a second positioning hole (141) is formed in the bottom of the shell (1); the second positioning hole (141) is far away from the oven door (12) and close to the magnetron (2); the first through hole (132) is positioned at the top of the shell (1) corresponding to the first positioning hole (131), the first through hole (132) penetrates through the top of the shell (1), and the longitudinal section of the first through hole (132) is in a step shape; the second through hole (142) is positioned at the top of the shell (1) corresponding to the second positioning hole (141), and the second through hole (142) penetrates through the top of the shell (1); one end of the screw (14) is positioned inside the first positioning hole (131), and the other end of the screw is positioned inside the first through hole (132); one end of the sliding rod (13) is positioned inside the second positioning hole (141), and the other end of the sliding rod is positioned inside the second through hole (142); said shutter (15) being located inside the cooking cavity (11); one end of the shielding plate (15) is connected with the sliding rod (13) in a sliding mode, the other end of the shielding plate is connected with the screw rod (14) in a rotating mode, one end, close to the bottom face of the shell (1), of the shielding plate (15) is arranged to be in a circular arc shape, and the lower end face of one side, close to the sliding rod (13), of the shielding plate (15) is arranged to be a tip end.

2. The variable frequency microwave oven according to claim 1, wherein: a first groove (16) is arranged on the end surface of the bottom of the shell (1) close to the cooking cavity (11); an oil groove (161) is formed in the first groove (16); the longitudinal section of the oil groove (161) is semicircular.

3. The variable frequency microwave oven according to claim 2, wherein: the longitudinal section of the first through hole (132) is in a step shape, the diameter of the first through hole (132) with the larger relative diameter is larger than that of the screw (14), and the diameter of the first through hole with the smaller relative diameter is equal to that of the screw (14); the longitudinal section of the second through hole (142) is in a step shape, the diameter of the hole with the larger relative diameter of the second through hole (142) is larger than that of the sliding rod (13), and the diameter of the hole with the smaller relative diameter is equal to that of the sliding rod (13).

4. The variable frequency microwave oven according to claim 3, wherein: a second groove (17) is arranged at one end of the top of the shell (1) far away from the cooking cavity (11); the longitudinal section of the second groove (17) is rectangular, and the second groove (17) is communicated with the first through hole (132); a spanner block (171) is clamped in the second groove (17); the wrench block (171) is hinged with the top end of the screw rod (14).

5. The variable frequency microwave oven according to claim 4, wherein: three grooves (172) are formed in two sides of the spanner block (171); the cross section of the third groove (172) is semicircular.

6. The variable frequency microwave oven according to claim 5, wherein: the pull block (171) is rotationally connected with the screw rod (14) through a torsion spring (173); the trigger block (171) can be horizontally placed in the second groove (17) under the action of the torsion spring (173) in the initial state.

Technical Field

The invention belongs to the field of microwave ovens, and particularly relates to a variable-frequency microwave oven.

Background

The frequency conversion type microwave oven adopts the most advanced international frequency conversion technology at present, the power frequency of a life power supply system 50 Hz is randomly converted into high frequency output of 10000-30000 Hz, different output power is controlled by changing the frequency, so that the effect of freely controlling the firepower is achieved, heated food is uniformly heated in all directions, the phenomenon that a certain part of the heated food is repeatedly heated and the other part of the heated food is insufficiently heated is avoided, the cooked food has better taste and less nutrition loss; the frequency conversion technology saves more than 20% of electricity compared with the traditional microwave oven by improving the efficiency of a power supply part and reducing the power consumption in standby; in addition, large components such as a transformer of a mechanical part of the microwave oven and the like are integrated on a single frequency conversion circuit board, so that noise is eliminated, and the whole microwave oven becomes light and compact; however, the frequency conversion microwave oven has certain disadvantages, and in the process of heating food, water and oil attached to the top of the microwave oven can be heated to melt and even fall into the food, so that the quality of the food is affected, and the health of the food is damaged; and cover food with the lid, on the one hand the inside water vapor that can condense of lid on one hand, in drippage food again, influence the taste of food, on the other hand, cover food with the lid, open the lid after the heating and easily cause the damage to the staff because of the steam bloies the face.

A water-cooled mute variable frequency microwave oven is disclosed in a chinese patent of CN201510309927.8, the technical scheme discloses a water-cooled mute variable frequency microwave oven, relating to the field of microwave ovens, comprising a microwave oven main body, an oven body outer cover, and a magnetron mounting cavity formed by the right side of the microwave oven main body and the oven body outer cover, a magnetron is mounted in the magnetron mounting cavity, wherein, a water tank body with an annular water tank arranged inside is sleeved outside the anode of the magnetron, the annular water tank surrounds the anode of the magnetron, and the outer wall of the water tank body is also provided with a water tank water inlet joint and a water tank water outlet joint which are communicated with the annular water tank; the magnetron mounting cavity is also internally provided with a water storage box, the water storage box is provided with a water storage box water inlet joint and a water storage box water outlet joint, the water tank water inlet joint is connected with the water storage box water outlet joint through a water pipe, the water tank water outlet joint is connected with the water storage box water inlet joint through a water pipe, and a water pump is connected between the water tank water inlet joint and the water storage box water outlet joint in series; the invention effectively cools the microwave oven to generate a large amount of heat during working, solves the problem of noise and achieves the aim of silencing; however, the technical scheme has certain defects that steam and oil evaporated by microwave can be condensed on the top of the microwave oven, and in the process of heating food by the microwave oven, the water and the oil attached to the top of the microwave oven can be melted by heating and even fall into the food, so that the quality of the food is influenced, and the health of the food is damaged.

In view of the above, in order to overcome the above technical problems, the present invention provides a variable frequency microwave oven, which solves the above technical problems.

Disclosure of Invention

In order to make up the defects of the prior art, the shielding plate is arranged above the cooking cavity and is matched with the inclined connecting sliding rod and the screw rod of the shielding plate, so that the purpose that water and oil generated by food evaporation are adsorbed on the surface of the shielding plate is achieved, the phenomenon that the end face of the top of the shell, which is close to the cooking cavity, adsorbs grease is avoided, and meanwhile, dirt on the end face is prevented from dropping under the state of microwave food to influence the food; the cleaning frequency of the variable frequency microwave oven is reduced, and the quality of microwave food is improved;

the invention relates to a variable frequency microwave oven, which comprises a shell, a cooking cavity, a rotary table, an oven door, a magnetron, a stirrer and a controller, wherein the oven door is arranged on the shell; a cooking cavity is arranged in the shell; the variable frequency microwave oven also comprises a slide bar, a screw rod, a shielding plate, a first positioning hole, a second positioning hole, a first through hole and a second through hole; a first positioning hole is formed in the bottom of the shell; the first positioning hole is far away from the furnace door and the magnetron; a second positioning hole is formed in the bottom of the shell; the second positioning hole is far away from the furnace door and close to the magnetron; the first through hole is positioned at the top of the shell corresponding to the first positioning hole, the first through hole penetrates through the top of the shell, and the longitudinal section of the first through hole is in a step shape; the second through hole is positioned at the top of the shell corresponding to the second positioning hole and penetrates through the top of the shell; one end of the screw rod is positioned in the first positioning hole, and the other end of the screw rod is positioned in the first through hole; one end of the sliding rod is positioned in the second positioning hole, and the other end of the sliding rod is positioned in the second through hole; the shielding plate is located inside the cooking cavity; one end of the shielding plate is connected with the sliding rod in a sliding mode, the other end of the shielding plate is connected with the screw rod in a rotating mode, one end, close to the bottom face of the shell, of the shielding plate is arranged to be in a circular arc shape, and the lower end face, close to one side of the sliding rod, of the shielding plate is arranged to be a pointed end.

When the microwave oven works, in the process of heating food, water and oil attached to the top of the microwave oven are heated to be melted and even fall into the food, so that the quality of the food is influenced, and the health of the food is damaged; on one hand, the food is covered by the cover, and water vapor can be condensed in the cover and then drops into the food again to affect the taste of the food;

a worker opens the door of the variable frequency microwave oven, places food on the turntable, and then adjusts the height of the baffle plate by rotating the screw rod so that the baffle plate is close to the food; closing the oven door and starting to heat food; during the heating process of food, moisture and grease in the food can be evaporated, the shielding plate is positioned above the food, when water vapor and oil meet the shielding plate in the rising process, one part of the water vapor and the oil can be adsorbed on the surface of the shielding plate, and the other part of the water vapor and the oil can flow away from a gap between the shielding plate and the shell and further flow out of the air dispersing hole of the microwave oven; meanwhile, the lower surface of the shielding plate is arranged in an arc shape; the shielding plate is connected to the sliding rod in an inclined sliding manner, and water drops and oil can be concentrated to one end of the shielding plate under the action of gravity and then fall; the condition that water drops are condensed and drop on the surface of food to reduce the mouthfeel is avoided;

according to the microwave food cooking device, the shielding plate is arranged above the microwave food and is matched with the inclined connecting sliding rod and the screw rod of the shielding plate, so that the purpose that moisture and oil generated by food evaporation are adsorbed on the surface of the shielding plate is achieved, the phenomenon that the end face of the top of the shell, close to the cooking cavity, adsorbs grease is avoided, and meanwhile, dirt on the end face is prevented from dripping under the state of microwave food to affect the food; meanwhile, the heating efficiency of the variable frequency microwave oven is improved, and the quality of microwave food is improved.

Preferably, the bottom of the housing is provided with a first groove on the end surface close to the cooking cavity; an oil groove is formed in the first groove; the longitudinal section of the oil groove is semicircular.

When the microwave oven works, the microwave oven heats food, water and oil can slowly slide along with the inclination angle of the baffle plate and finally drop into the oil groove, the oil groove is detachable and convenient to clean, and meanwhile, oil is prevented from dropping on the bottom surface of the cooking cavity;

according to the invention, the first groove is arranged below the shielding plate and is combined with the oil groove in the first groove in a sliding manner, so that water and oil dropping from the shielding plate are collected, further pollution to the inside of the microwave oven is avoided, the cleaning frequency of the variable frequency microwave oven is reduced, and the cleaning efficiency is improved.

Preferably, the longitudinal section of the first through hole is in a step shape, the diameter of the first through hole relative to the hole with the larger diameter is larger than that of the sliding rod, and the diameter of the first through hole relative to the hole with the smaller diameter is equal to that of the sliding rod; the longitudinal section of the second through hole is in a step shape, the diameter of the second through hole with the larger relative diameter is larger than that of the screw, and the diameter of the second through hole with the smaller relative diameter is equal to that of the screw; the slide bar, the screw and the baffle plate are made of glass, so that the use of microwaves is not influenced.

When the device works, a worker can respectively pull the sliding rod and the screw rod out of the first through hole and the second through hole, and the worker can clean the sliding rod and the screw rod, so that the sliding rod and the screw rod are convenient to clean and disassemble; when the slide bar and the screw rod are positioned in the microwave oven, the slide bar and the screw rod can not generate relative displacement;

the diameter of the through hole is set to be larger than the diameter of the slide rod and the screw rod, and then the through hole is matched with the movable slide rod and the screw rod, so that the aim of disassembling the slide rod and the screw rod is fulfilled, the slide rod, the screw rod and the baffle plate can be cleaned, the cleaning frequency of the variable frequency microwave oven is reduced by cleaning the internal structure, and the cleaning difficulty is further reduced;

preferably, one end of the top of the shell, which is far away from the cooking cavity, is provided with a second groove; the longitudinal section of the second groove is rectangular, and the second groove is communicated with the first through hole; a spanner block is clamped in the second groove; the pulling block is hinged with the top end of the screw rod.

When the device works, a worker can lift the pulling block to form an angle of 45 degrees and then rotate the plate, and the pulling block can drive the screw rod to rotate, so that the vertical height of the shielding plate is changed, the condition that hands are contaminated by oil on the surface of the screw rod when the screw rod is adjusted in a furnace is avoided, and the shielding plate is adjusted more conveniently and quickly;

preferably, two sides of the spanner block are provided with a third groove; the cross section of the third groove is semicircular.

When the baffle plate works, a worker can pull the pull block to 45 degrees by a single hand, then align the pull block to the third groove by fingers, and then rotate the pull block by the hand to adjust the upper position and the lower position of the baffle plate; from the perspective of human engineering, the operation of workers is convenient, and the operation is convenient and quick;

preferably, the pulling block is rotationally connected with the screw rod through a torsion spring; the spanner block can be horizontally placed in the second groove under the action of torsion of the torsion spring in an initial state.

When the baffle plate works, a worker pulls the pulling block to 45 degrees, and the force applied to the pulling block by the worker is larger than the torsion force of the torsion spring, so that the pulling block can drive the screw rod to rotate in a vertical state, and the upper position and the lower position of the baffle plate are adjusted; after the adjustment is finished, the fingers of the worker leave the pulling block, the force applied to the pulling block by the worker disappears, and the pulling block resets under the action of the torsional spring torsion, so that the pulling block can be horizontally placed in an initial state, the pulling block is further ensured not to be impacted and damaged in a daily state, the stability of the screw rod is ensured, and relative rotation is not generated;

the invention has the following beneficial effects:

1. according to the microwave food cooking device, the shielding plate is arranged above the microwave food and is matched with the inclined connecting sliding rod and the screw rod of the shielding plate, so that the purpose that moisture and oil generated by food evaporation are adsorbed on the surface of the shielding plate is achieved, the phenomenon that the end face of the top of the shell, close to the cooking cavity, adsorbs grease is avoided, and meanwhile, dirt on the end face is prevented from dripping under the state of microwave food to affect the food; meanwhile, the heating efficiency of the variable frequency microwave oven is improved, and the quality of microwave food is improved.

2. According to the invention, the third groove is arranged below the shielding plate and is combined with the oil groove in the third groove in a sliding manner, so that water and oil dropping from the shielding plate are collected, further pollution to the inside of the microwave oven is avoided, the cleaning frequency of the variable frequency microwave oven is reduced, and the cleaning efficiency is improved.

3. According to the invention, the diameter of the through hole is set to be larger than the diameter of the slide rod and the screw rod, and then the through hole is matched with the movable slide rod and the screw rod, so that the aim of disassembling the slide rod and the screw rod is achieved, the slide rod, the screw rod and the baffle plate can be cleaned, the cleaning frequency of the variable frequency microwave oven is reduced by cleaning the internal structure, and the cleaning difficulty is further reduced.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a half-section top view of the present invention;

figure 5 is a perspective view of the plate;

in the figure: 1. a housing; 11. a cooking cavity; 111. a turntable; 12. a furnace door; 2. a magnetron; 3. a stirrer; 13. a slide bar; 14. a screw; 15. a shielding plate; 131. a first positioning hole; 132. a first through hole; 141. a second positioning hole; 142. a second through hole; 16. a first groove; 161. an oil sump; 17. a second groove; 171. pulling a block; 172. a groove III; 173. a torsion spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, a variable frequency microwave oven according to the present invention includes a case 1, a cooking cavity 11, a turntable 111, an oven door 12, a magnetron 2, a stirrer 3, and a controller; a cooking cavity 11 is arranged in the shell 1; the frequency conversion microwave oven also comprises a slide bar 13, a screw 14, a baffle plate 15, a first positioning hole 131, a second positioning hole 141, a first through hole 132 and a second through hole 142; a first positioning hole 131 is formed in the bottom of the shell 1; the first positioning hole 131 is far away from the oven door 12 and far away from the magnetron 2; a second positioning hole 141 is formed in the bottom of the shell 1; the second positioning hole 141 is far away from the oven door 12 and close to the magnetron 2; the first through hole 132 is positioned at the top of the shell 1 corresponding to the first positioning hole 131, the first through hole 132 penetrates through the top of the shell 1, and the longitudinal section of the first through hole 132 is stepped; the second through hole 142 is located at the top of the shell 1 corresponding to the second positioning hole 141, and the second through hole 142 penetrates through the top of the shell 1; one end of the screw 14 is located inside the first positioning hole 131, and the other end of the screw is located inside the first through hole 132; one end of the sliding rod 13 is located inside the second positioning hole 141, and the other end of the sliding rod is located inside the second through hole 142; the shielding plate 15 is located inside the cooking cavity 11; one end of the shielding plate 15 is connected with the sliding rod 13 in a sliding manner, the other end of the shielding plate is connected with the screw 14 in a rotating manner, one end of the shielding plate 15, which is close to the bottom surface of the shell 1, is arranged into a circular arc shape, and the lower end surface of one side of the shielding plate 15, which is close to the sliding rod 13, is arranged into a tip end.

When the microwave oven works, in the process of heating food, water and oil attached to the top of the microwave oven are heated to be melted and even fall into the food, so that the quality of the food is influenced, and the health of the food is damaged; on one hand, the food is covered by the cover, and water vapor can be condensed in the cover and then drops into the food again to affect the taste of the food;

the worker opens the door 12 of the variable frequency microwave oven, puts the food on the turntable 111, and then adjusts the height of the shielding plate 15 by rotating the screw 14, so that the shielding plate 15 is close to the food; closing the oven door 12 and starting to heat the food; during the process of heating food, moisture and grease in the food can be evaporated, the shielding plate 15 is positioned above the food, when water vapor and oil meet the shielding plate 15 in the rising process, one part of the water vapor and the oil can be adsorbed on the surface of the shielding plate 15, and the other part of the water vapor and the oil can flow away from a gap between the shielding plate 15 and the shell 1 and further flow out from air diffusing holes of the microwave oven; meanwhile, the lower surface of the shielding plate 15 is arranged in a circular arc shape; the shielding plate 15 is connected to the sliding rod 13 in an inclined sliding manner, and water drops and oil can be concentrated to one end of the shielding plate 15 under the action of gravity and then fall; the condition that water drops are condensed and drop on the surface of food to reduce the mouthfeel is avoided;

according to the microwave food cooking device, the shielding plate 15 is arranged above the microwave food, and is matched with the shielding plate 15, the inclined connecting sliding rod 13 and the screw 14, so that the purpose that water and oil generated by food evaporation are adsorbed on the surface of the shielding plate 15 is achieved, the phenomenon that grease is adsorbed on the end face of the top of the shell 1 close to the cooking cavity 11 is avoided, and meanwhile, the phenomenon that water and oil on the end face drip in the state of microwave food to influence the food is avoided; meanwhile, the heating efficiency of the variable frequency microwave oven is improved, and the quality of microwave food is improved.

As an embodiment of the present invention, the bottom of the housing 1 is provided with a first groove 16 at an end surface close to the cooking cavity 11; an oil groove 161 is arranged inside the first groove 16; the oil groove 161 has a semicircular longitudinal sectional shape.

When the microwave oven works, the microwave oven heats food, water and oil slowly slide along with the inclination angle of the shielding plate 15 and finally drop into the oil groove 161, the oil groove 161 is detachable, cleaning is convenient, and oil is prevented from dropping on the bottom surface of the cooking cavity 11;

according to the invention, the first groove 16 is arranged below the shielding plate 15 and is combined with the oil groove 161 which is connected with the inside of the first groove 16 in a sliding manner, so that water and oil dropping from the shielding plate 15 are collected, the inside of the microwave oven is prevented from being polluted, the cleaning frequency of the variable frequency microwave oven is reduced, and the cleaning efficiency is improved.

As an embodiment of the present invention, the longitudinal section of the first through hole 132 is shaped like a step, the diameter of the first through hole 132 with a relatively large diameter is larger than the diameter of the sliding rod 13, and the diameter of the first through hole 132 with a relatively small diameter is equal to the diameter of the sliding rod 13; the longitudinal section of the second through hole 142 is in a step shape, the diameter of the second through hole 142 with the larger relative diameter is larger than that of the screw 14, and the diameter of the second through hole 142 with the smaller relative diameter is equal to that of the screw 14; the slide rod 13, the screw 14 and the shielding plate 15 are made of glass, so that the use of microwaves is not influenced.

During work, a worker can respectively pull the sliding rod 13 and the screw 14 out of the first through hole 132 and the second through hole 142, and the worker can clean the sliding rod 13 and the screw 14, so that the cleaning and the disassembly are convenient; when the sliding rod 13 and the screw 14 are positioned in the microwave oven, the sliding rod 13 and the screw 14 do not generate relative displacement;

the diameter of the through hole is set to be larger than the diameters of the slide rod 13 and the screw rod 14, and then the through hole is matched with the movable slide rod 13 and the screw rod 14, so that the aim of disassembling the slide rod 13 and the screw rod 14 is fulfilled, the slide rod 13, the screw rod 14 and the shielding plate 15 can be cleaned, the cleaning frequency of the variable frequency microwave oven is reduced by cleaning the internal structure, and the cleaning difficulty is further reduced;

as an embodiment of the present invention, the top of the housing 1, which is far away from the cooking cavity 11, is provided with a second groove 17; the longitudinal section of the second groove 17 is rectangular, and the second groove 17 is communicated with the first through hole 132; a spanner block 171 is clamped in the second groove 17; the trigger block 171 is hinged to the top end of the screw 14.

When the device works, a worker can lift the pull block 171 to form an angle of 45 degrees, then rotate the pull block 171, and the pull block 171 can drive the screw 14 to rotate, so that the vertical height of the shielding plate 15 is changed, the situation that hands are contaminated by oil on the surface of the screw 14 when the screw 14 is adjusted in the furnace is avoided, and the shielding plate 15 can be adjusted more conveniently and quickly;

as an embodiment of the present invention, three grooves 172 are formed on both sides of the trigger block 171; the third groove 172 is semicircular in cross section.

During working, a worker can pull the pull block 171 to 45 degrees by a single hand, then align the third groove 172 by fingers, and then rotate the pull block 171 by the hand to adjust the upper and lower positions of the shielding plate 15; from the perspective of human engineering, the operation of workers is convenient, and the operation is convenient and quick;

as an embodiment of the present invention, the trigger block 171 is rotatably connected to the screw 14 by a torsion spring 173; the trigger block 171 can be horizontally placed inside the second groove 17 under the torsion force of the torsion spring 173 in the initial state.

When the baffle plate works, a worker pulls the pulling block 171 to 45 degrees, and the force applied to the pulling block 171 by the worker is larger than the torsion force of the torsion spring 173, so that the pulling block 171 can drive the screw 14 to rotate in a vertical state, and the vertical position of the baffle plate 15 is adjusted; after the adjustment is completed, the fingers of the worker leave the wrench block 171, the force applied to the wrench block 171 by the worker disappears, the wrench block 171 resets under the action of the torsion force of the torsion spring 173, so that the wrench block 171 can be horizontally placed in the initial state, the wrench block 171 is further ensured not to be damaged by collision in the daily state, the stability of the screw 14 is ensured, and relative rotation is not generated;

the specific implementation measures are as follows:

the worker opens the door 12 of the variable frequency microwave oven, puts the food on the turntable 111, and then adjusts the height of the shielding plate 15 by rotating the screw 14, so that the shielding plate 15 is close to the food; closing the oven door 12 and starting to heat the food; during the process of heating food, moisture and grease in the food can be evaporated, the shielding plate 15 is positioned above the food, when water vapor and oil meet the shielding plate 15 in the rising process, one part of the water vapor and the oil can be adsorbed on the surface of the shielding plate 15, and the other part of the water vapor and the oil can flow away from a gap between the shielding plate 15 and the shell 1 and further flow out from air diffusing holes of the microwave oven; meanwhile, the lower surface of the shielding plate 15 is arranged in a circular arc shape; the shielding plate 15 is connected to the sliding rod 13 in an inclined sliding manner, and water drops and oil can be concentrated to one end of the shielding plate 15 under the action of gravity and then fall; the condition that water drops are condensed and drop on the surface of food to reduce the mouthfeel is avoided; when the microwave oven heats food, water and oil can slowly slide along with the inclination angle of the shielding plate 15 and finally drop into the oil groove 161, the oil groove 161 is detachable, cleaning is convenient, and oil is prevented from dropping on the bottom surface of the cooking cavity 11; the worker can respectively draw the sliding rod 13 and the screw 14 out of the first through hole 132 and the second through hole 142, and the worker can clean the sliding rod 13 and the screw 14, so that the cleaning and the disassembly are convenient; when the sliding rod 13 and the screw 14 are positioned in the microwave oven, the sliding rod 13 and the screw 14 do not generate relative displacement; the worker can lift the pull block 171 to form an angle of 45 degrees, then rotate the plate, the pull block 171 can drive the screw 14 to rotate, so that the vertical height of the shielding plate 15 is changed, the condition that hands are stained by oil on the surface of the screw 14 when the screw 14 is adjusted in the furnace is avoided, and the shielding plate 15 can be adjusted more conveniently and rapidly; a worker can pull the pull block 171 to 45 degrees by a single hand, align the third groove 172 by fingers, and then rotate the pull block 171 by the hand to adjust the upper and lower positions of the shielding plate 15; the worker pulls the pulling block 171 to 45 degrees, and the force applied to the pulling block 171 by the worker is larger than the torsion force of the torsion spring 173, so that the pulling block 171 can drive the screw 14 to rotate in the vertical state, and the vertical position of the shielding plate 15 can be adjusted; when the adjustment is completed, the fingers of the worker are separated from the wrench block 171, and at this time, the force applied to the wrench block 171 by the worker disappears, and the wrench block 171 is restored by the torsion of the torsion spring 173, so that the wrench block 171 can be horizontally placed in the initial state.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.