Cooking equipment with automatic door opening function

Abstract

The automatic door opening cooking equipment comprises a box body, a door body and a door opening mechanism, the box body is provided with an opening, and a door frame is arranged at the opening; the door body is hinged to the box body; the door opening mechanism is arranged in the box body and comprises a motor and a push rod, an output shaft of the motor is connected with a cam, the cam abuts against one end of the push rod, the push rod is provided with a fixing block, the push rod is sleeved with an elastic piece, and the elastic piece is located between the fixing block and the door frame; the push rod has a first state and a second state, and when the push rod is in the first state, the push rod is retracted into the box body; and when the push rod is in the second state, the push rod penetrates through the door frame to generate thrust to the door body. The cam abuts against the push rod, when the push rod moves forwards, the elastic piece is extruded, the push rod stretches out of the door frame to generate thrust on the door body, and the door body is automatically opened without manual door opening. The door opening mechanism does not need complex parts such as gears, the push rod is not connected with the hinge, and abrasion is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and in particular to an automatic door-opening cooking device. Background Art

[0002] Microwave ovens, ovens, and steam ovens typically have handles installed on their doors, which are opened manually by pulling the handles. However, cooking equipment generates high-temperature steam during the cooking process. Manually opening the door can easily cause burns to the user due to the close proximity of the user to the cooking device's inner opening.

[0003] Existing handleless steam ovens are equipped with an automatic door opening device, which is connected to the door hinge and opens the door body by means of a gear-driven pull rod. This structure is relatively complex as a whole, and since the pull rod is directly connected to the hinge, the connection between the pull rod and the hinge is prone to wear during long-term use, resulting in uneven force. Utility Model Content

[0004] One of the purposes of the present invention is to provide a cooking device with an automatic door opening, so as to solve the problem that the door opening device of the existing cooking device has a complicated structure.

[0005] The automatic door opening cooking device of the utility model can be realized by the following technical solutions:

[0006] An automatic door opening cooking device, comprising:

[0007] A box body, wherein the box body has an opening, and a door frame is provided at the opening;

[0008] a door body, the door body being hinged to the box body;

[0009] A door opening mechanism is arranged inside the box body, and the door opening mechanism includes a motor and a push rod. A cam is connected to the output shaft of the motor, and the cam abuts against one end of the push rod. A fixed block is provided on the push rod, and an elastic member is sleeved on the push rod, and the elastic member is located between the fixed block and the door frame; the push rod has a first state and a second state, and when the push rod is in the first state, the push rod is retracted into the box body; when the push rod is in the second state, the push rod passes through the door frame to generate a thrust on the door body.

[0010] In one embodiment, a stopper is provided at one end of the push rod, and the cam abuts against the stopper.

[0011] In one embodiment, the door opening mechanism is further provided with a limiting cover, which is located on a side of the fixing block away from the door frame, and the push rod passes through the limiting cover so that the push rod is partially located inside the limiting cover.

[0012] In one embodiment, the box body includes an outer shell and an inner liner, the door opening mechanism is installed on the inner liner, the outer shell is wrapped around the outside of the inner liner, the limit cover is fixed on the inner liner, the limit cover is provided with a guide rail, and the fixed block is provided with a stop portion. When the fixed block abuts against the limit cover, the stop portion is stuck on the outside of the guide rail.

[0013] In one embodiment, the door opening mechanism further includes a sliding seat, which is located in the limiting cover and slides back and forth along the inner tank. The sliding seat is provided with a slot, and the fixed block is provided with a buckle portion, which is clamped in the slot.

[0014] In one embodiment, the sliding seat is provided with a guide groove, the guide groove is communicated with the clamping groove, and the push rod passes through the guide groove.

[0015] In one embodiment, the sliding seat is provided with a transverse portion, which is embedded in the guide rail and can slide back and forth along the guide rail.

[0016] In one embodiment, a protective portion is provided at one end of the push rod away from the cam.

[0017] In one embodiment, a positioning hole is provided on the door frame, and the push rod passes through the positioning hole and reciprocates back and forth.

[0018] In one embodiment, a door opening controller is also provided on the door body.

[0019] Compared to existing technologies, the present invention's automatic door-opening cooking device offers the following advantages: The cam abuts the push rod, and when the push rod moves forward, the elastic member is compressed, causing the push rod to extend through the door frame and exert force on the door, automatically opening the door without manual operation. The door-opening mechanism eliminates the need for complex components such as gears, and the push rod is not hinged, making it less susceptible to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of an automatic door opening cooking device in the door opening state of the utility model;

[0022] Figure 2This is one of the structural schematic diagrams of the automatic door opening cooking device of the present invention with the outer shell removed in the closed state;

[0023] Figure 3 This is the second structural diagram of the automatic door opening cooking device of the present invention with the outer shell removed in the closed state;

[0024] Figure 4 yes Figure 3 A schematic diagram of the door opening mechanism of an automatic door opening cooking device is shown;

[0025] Figure 5 yes Figure 3 The figure shows an exploded schematic diagram of a sliding seat and a push rod in a door opening mechanism of an automatic door opening cooking device.

[0026] Indications in the figure: 1. Box body; 11. Door frame; 111. Positioning hole; 12. Inner liner; 2. Door body; 21. Door opening controller; 3. Door opening mechanism; 31. Motor; 311. Cam; 32. Push rod; 321. Fixing block; 3211. Buckle part; 3212. Stop part; 322. Elastic part; 323. Block; 324. Protective part; 33. Limiting cover; 331. Guide rail; 34. Sliding seat; 341. Slot; 342. Guide groove; 343. Horizontal part. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] See also Figure 1-5This embodiment provides an automatic door-opening cooking device, comprising a housing 1, a door 2, and a door-opening mechanism. The housing 1 has an opening, a door frame 11 disposed at the opening, and positioning holes 111 disposed in the door frame 11. The door 2 is hingedly connected to the housing 1 and can be flipped downward relative to the housing 1 to open. This structure is conventional and will not be described in detail here. The door 2 can block the opening, forming a sealed connection between the door 2 and the door frame 11, thereby forming a sealed cavity within the inner pot 12.

[0030] The box body 1 includes an outer shell (not shown) and an inner liner 12. The outer shell is wrapped around the outside of the inner liner 12, and an installation space is formed between the outer shell and the inner liner 12. The door opening mechanism 3 is arranged in the installation space inside the box body 1. The door opening mechanism 3 includes a motor 31 and a push rod 32. A cam 311 is connected to the output shaft of the motor 31, and the cam 311 abuts against one end of the push rod 32. A fixed block 321 is provided on the push rod 32, and an elastic member 322 is sleeved on the push rod 32. The elastic member 322 is located between the fixed block 321 and the door frame 11, that is, the elastic member 322 is limited by the fixed block 321 and the door frame 11. In this embodiment, a support block can also be provided on the inner side of the door frame 11, and the elastic member 322 is limited by the fixed block 321 and the support block. The elastic member 322 is preferably a spring.

[0031] The push rod 32 has a first state and a second state. When the end face of the cam 311 at the shortest distance from the center contacts the push rod 32, the push rod 32 is in the first state and retracted within the housing 1. At this time, the door 2 is in a closed state or the push rod 32 does not apply a thrust to the door 2. As the cam 311 rotates, the end face of the cam 311 at a gradually increasing distance from the center contacts the push rod 32, and the push rod 32 slowly extends out of the positioning hole 111 in the door frame 11. At this time, the push rod 32 is in the second state. The push rod 32 passes through the door frame 11 and generates a thrust on the door 2. The door 2 forms a certain downward angle relative to the housing 1, and the door 2 automatically opens downward under its own gravity, without the need for manual opening.

[0032] When the cam 311 rotates to the end face that is the farthest from the center, the push rod 32 extends the greatest distance from the door frame 11, and the elastic member 322 is squeezed most severely at this time; as the cam 311 rotates further, the distance between the end face where the cam 311 and the drag rod 32 abut and the center gradually decreases. At this time, the elastic member 322 uses its restoring force to push the fixed block 321 to slide in the direction away from the door frame 11, so that the push rod 32 automatically retracts and resets inside the box body 1.

[0033] The door opening mechanism of this embodiment controls the reciprocating motion of the push rod by the contact between the cam and the push rod, eliminating the need for complex components such as gears and resulting in a simple structure. In addition, the push rod is not directly connected to the hinge, making it less susceptible to wear and tear and less prone to uneven force over long periods of use.

[0034] Furthermore, a protective portion 324 is provided at one end of the push rod 32 away from the cam 311 to prevent the push rod 32 from scratching the door body 2 when pushing the door body 2. In this embodiment, the protective portion 324 can be provided with a certain chamfered surface, or a silicone sleeve or a sponge pad.

[0035] Furthermore, a door opening controller 21 is provided on the door body 2. The door opening controller 21 can be a button, a touch key or a vibration sensor, etc. The door opening controller 21 can control the start of the motor 31. The user sends a signal through the door opening controller 21 to start the motor 31, and the push rod 32 is pushed outward to open the door body 2.

[0036] Specifically, the door opening controller 21 and the motor 31 are both electrically connected to the controller of the cooking device. The door opening controller 21 receives the door opening signal from the user and transmits the signal to the controller, which then controls the motor 31 to start.

[0037] See also Figure 2 and Figure 3 The door opening mechanism 3 is installed on the outer wall of the inner liner 12. Preferably, the door opening mechanism 3 is installed on the left or right side wall of the inner liner 12 and is located in the middle or close to the end of the inner liner 12 away from the connection point, so as to reduce the thrust required to open the door.

[0038] A stopper 323 is provided at one end of the push rod 32 , and the cam 311 abuts against the stopper 323 , thereby increasing the contact area between the cam 311 and the push rod 32 and preventing slipping during rotation.

[0039] Furthermore, the door opening mechanism 3 is also provided with a limit cover 33, which is located on the side of the fixed block 321 away from the door frame 11, and the push rod 32 passes through the limit cover 33, so that the push rod 32 is partially located in the limit cover 33. By setting the limit cover 33, it can not only protect the push rod 32, but also facilitate the adjustment of the reciprocating motion distance of the push rod 32, thereby setting the length of the elastic member 322 to avoid the elastic member 322 having a restoring force that is too large or too small.

[0040] Furthermore, the limiting cover 33 is provided with a guide rail 331 , and the fixing block 321 is provided with a stop portion 3212 . When the fixing block 321 abuts against the limiting cover 33 , the stop portion 3212 is stuck outside the guide rail to stop the fixing block 321 .

[0041] See also Figure 3-5 The door opening mechanism also includes a sliding seat 34, which is located in the limiting cover 33 and slides back and forth along the inner liner 12. The sliding seat 34 is provided with a card slot 341, and the fixed block 321 is provided with a snap portion 3211. The snap portion 3211 is stuck in the card slot 341, so that the fixed block 321 and the sliding seat 34 are fixedly connected. When the push rod 32 moves toward the door body 2, it drives the sliding seat 34 to slide on the inner liner. By adding the sliding seat 34 to limit the push rod 32, the movement distance of the push rod 32 can be limited by adding a travel switch. In addition, it can also prevent the motor 31 from rotating too fast, causing the push rod 32 to deviate from the positioning hole 111 during reciprocating motion.

[0042] Furthermore, in order to better connect the push rod 32 with the sliding seat, the sliding seat 34 is provided with a guide groove 342, and the guide groove 342 is connected to the card slot 341. In this embodiment, the guide groove 342 is provided at one end of the sliding seat 34, and the card slot 341 is provided at the other end. The push rod 32 passes through the guide groove 342, which guides the push rod 32.

[0043] Furthermore, the sliding seat 34 is provided with a transverse portion 343, the guide groove 342 and the card slot 341 are both provided in the transverse portion 343, the transverse portion 343 is embedded in the guide rail 331, and can slide back and forth along the guide rail 331, further guiding and limiting the push rod 32.

[0044] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An automatic door opening cooking device, characterized in that: include: A box body, wherein the box body has an opening, and a door frame is provided at the opening; a door body, the door body being hinged to the box body; A door opening mechanism is arranged inside the box body, and the door opening mechanism includes a motor and a push rod. A cam is connected to the output shaft of the motor, and the cam abuts against one end of the push rod. A fixed block is provided on the push rod, and an elastic member is sleeved on the push rod, and the elastic member is located between the fixed block and the door frame; the push rod has a first state and a second state, and when the push rod is in the first state, the push rod is retracted into the box body; when the push rod is in the second state, the push rod passes through the door frame to generate a thrust on the door body.

2. The automatic door opening cooking device according to claim 1, characterized in that: A stopper is provided at one end of the push rod, and the cam abuts against the stopper.

3. The automatic door opening cooking device according to claim 1, characterized in that: The door opening mechanism is further provided with a limiting cover, which is located on a side of the fixing block away from the door frame. The push rod passes through the limiting cover so that the push rod portion is located inside the limiting cover.

4. The automatic door opening cooking device according to claim 3, characterized in that: The box body includes an outer shell and an inner liner, the outer shell is wrapped around the outside of the inner liner, the limit cover is fixed on the inner liner, the limit cover is provided with a guide rail, and the fixed block is provided with a stop portion. When the fixed block abuts against the limit cover, the stop portion is stuck on the outside of the guide rail.

5. The automatic door opening cooking device according to claim 4, characterized in that: The door opening mechanism also includes a sliding seat, which is located in the limiting cover and slides back and forth along the inner container. The sliding seat is provided with a card slot, and the fixed block is provided with a buckle portion, which is clamped in the card slot.

6. The automatic door opening cooking device according to claim 5, characterized in that: The sliding seat is provided with a guide groove, the guide groove is communicated with the clamping groove, and the push rod passes through the guide groove.

7. The automatic door opening cooking device according to claim 5, characterized in that: The sliding seat is provided with a transverse portion, which is embedded in the guide rail and can slide back and forth along the guide rail.

8. The automatic door opening cooking device according to any one of claims 1 to 7, characterized in that: A protective portion is provided on one end of the push rod away from the cam.

9. The automatic door opening cooking device according to any one of claims 1 to 7, characterized in that: The door frame is provided with a positioning hole, and the push rod passes through the positioning hole and reciprocates back and forth.

10. The automatic door opening cooking device according to any one of claims 1 to 7, characterized in that: The door body is also provided with a door opening controller.

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