Floating ball micro-pressure structure for electric cooker

Abstract

The utility model provides a floating ball micro-pressure structure for an electric cooker. The floating ball micro-pressure structure comprises a floating ball and an exhaust channel for bearing the floating ball, the assembly cavity is positioned above the exhaust channel and is communicated with the exhaust channel; the rotating cover covers the assembling cavity; the rotary cover is provided with an exhaust port, and when the rotary cover rotates, the push rod is driven to make contact with the floating ball, the floating ball is driven to move along the exhaust channel, so that the air displacement of the exhaust channel is adjusted, and then the pressure in the electric cooker is driven to be adjusted. According to the electric cooker, the push rod is controlled to enable the floating ball to move along a set area through rotation of the rotary cover, then the floating ball controls the size of an exhaust channel opening, and the pressure in the electric cooker is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of control in cooking appliances, in particular to a floating ball micro-pressure structure used for electric rice cookers. Background Art

[0002] In cooking appliances, the control and movement direction adjustment of the float are mostly used to control circulation. At this time, the relevant control is carried out through water flow or air flow, so that it can only drive the float to move up and down. Once the float is used for hot air flow or pressure control, it is difficult to control it through gravity. Utility Model Content

[0003] The utility model aims to provide a floating ball micro-pressure structure for an electric rice cooker. The rotating cover is rotated to control a push rod so that the floating ball moves along a set area, thereby completing the floating ball's control of the size of the exhaust channel opening, thereby adjusting the pressure in the electric rice cooker.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0005] A floating ball structure for an electric rice cooker, comprising:

[0006] A float ball and an exhaust passage carrying the float ball;

[0007] an assembly cavity located above the exhaust passage and communicating therewith;

[0008] A rotating cover arranged on the assembly cavity;

[0009] The rotating cover is provided with an exhaust port. When the rotating cover rotates, the push rod is driven to contact the floating ball, and the floating ball is driven to move along the exhaust channel to adjust the exhaust volume of the exhaust channel, thereby driving the pressure in the rice cooker to be adjusted.

[0010] Furthermore, a bottom portion of the rotating cover near the exhaust port extends toward the assembly cavity to form a driving member, and the driving member approaches or moves away from the push rod during rotation.

[0011] Furthermore, there are two driving members, and the two driving members form a reciprocating motion trajectory of the push rod. When the rotating cover rotates, one of the two driving members is always close to the push rod, and the other is always far away from the push rod.

[0012] Furthermore, fixing screws and fixing columns are respectively provided at both ends of the push rod, and the fixing screws are fixed on the assembly cavity formed by the inner cover.

[0013] Furthermore, a groove is provided on the assembly cavity, and the fixing column moves closer to or away from the groove as the push rod moves.

[0014] Furthermore, the push rod is formed to include three inclined push surfaces, and an obtuse angle is formed between the three inclined push surfaces and between every two push surfaces toward the center of the assembly cavity.

[0015] Furthermore, the push rod is arranged near the edge of the assembly cavity, and the inclined push surface at the farthest end of the push rod is the shortest and is inclined toward the inner wall of the assembly cavity.

[0016] Furthermore, a plurality of convex ribs with guiding surfaces are formed at the opening of the rotating cover, and an outer wall of the assembly cavity is provided with an assembly groove matching the convex ribs.

[0017] Furthermore, the convex rib forms an upward guiding slope toward the bottom of the rotating cover, and one side of the assembly groove is provided with an assembly slope matching therewith.

[0018] Furthermore, an assembly gap of 0.3 mm to 0.5 mm is formed between the rotating cover and the assembly cavity.

[0019] The beneficial effects of the utility model are as follows:

[0020] In the utility model, a rotating cover and a push rod are selected, so that the float ball can be controlled to rotate near the exhaust channel. At this time, the airflow discharged from the exhaust channel is controlled, and the sealing performance connected to the inside of the rice cooker is adjusted, thereby realizing the control and adjustment of the pressure.

[0021] In the utility model, a set motion trajectory is formed by a driving member to ensure that the entire motion is within an expected range, and a plurality of surfaces are provided for the push rod, so that different surfaces are controlled differently during the action on the float, thereby achieving a good effect of pushing the float. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of a float structure for an electric rice cooker provided by the utility model;

[0023] Figure 2 A diagram showing the use state of the float structure for the electric rice cooker provided by the utility model, away from the fully open state of the exhaust passage;

[0024] Figure 3 A diagram showing a use state of the float structure for the electric rice cooker provided by the utility model, away from the semi-open state of the exhaust passage;

[0025] Figure 4 A diagram showing a use state of the float structure for the electric rice cooker provided by the utility model, away from a closed state of the exhaust passage;

[0026] Figure 5 The assembly diagram of the float structure for the electric rice cooker and the electric rice cooker provided by the utility model;

[0027] Figure 6 An assembly diagram of the rotary cover and the assembly cavity provided by the utility model;

[0028] In the figure:

[0029] 100, float; 200, exhaust channel; 300, assembly cavity; 310, groove; 320, assembly groove; 330, torsion spring; 400, rotating cover; 410, exhaust port; 420, driving member; 430, convex rib; 500, push rod; 510, fixing screw; 520, fixing column. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0031] See attached Figure 1-6 As shown, the float structure for the rice cooker in this embodiment is mainly used for adjusting and controlling the pressure in the rice cooker, and specifically includes a float 100, and an exhaust channel 200 carrying the float 100; in order to assemble the float, it also includes an assembly cavity 300 located above the exhaust channel 200 and communicated with the exhaust channel 200; in this embodiment, the float, the exhaust channel and the assembly cavity can be located on the head cover, and can also be located at the assembly shell of the rice cooker, etc., but due to the upward movement of hot steam, the effect is better when it is arranged on the head cover.

[0032] In order to achieve control over the float, in this embodiment, a rotating cover 400 is also provided on the assembly cavity 300, and then an exhaust port 410 is provided on the rotating cover 400 to complete the final discharge of hot air. When the rotating cover 400 rotates, the push rod 500 is driven to contact the float 100, driving the float 100 to move along the exhaust channel 200 to adjust the exhaust volume of the exhaust channel 200, thereby driving the adjustment of the pressure in the rice cooker.

[0033] The working principle of this embodiment is:

[0034] When the rotary cover 400 rotates, it generates a certain driving force, drives the push rod 500 to rotate, and then drives the float 100 to rotate in the exhaust channel 200, approaching or moving away from the exhaust channel 200, so that its sealing port is continuously adjusted, thereby driving the pressure adjustment.

[0035] In this embodiment, compared with the control of airflow, simple control is performed through rotation, and the rotating cover is arranged on the outside of the entire rice cooker, and the user can directly operate the rotation, which makes the control simpler and achieves a better effect on the pressure adjustment.

[0036] In this embodiment, the addition of the exhaust port and the assembly cavity not only provides space for the movement of the float, but also provides a buffer cavity for the airflow flowing out of the exhaust channel, so that it can flow smoothly when it flows out.

[0037] In order to ensure accurate driving of the push rod, in this embodiment, a driving member 420 is formed at the bottom of the rotating cover 400 near the exhaust port 410 and extends toward the assembly chamber 300. The driving member 420 moves closer to or away from the push rod 500 during rotation. In this embodiment, since the rotating cover 400 itself is not easy to directly contact the push rod, the driving member 420 is added, which will contact the push rod and then drive the push rod to move. In this embodiment, the driving member 420 and the push rod 410 are staggered so that the functions between them do not affect each other and the assembly space is fully utilized.

[0038] In order to ensure that the floating ball moves along the set trajectory without deviation, two driving members 420 are provided, and an angle is formed between the two driving members 420, so that the two driving members 420 form a reciprocating motion trajectory of the push rod 500 near the center of the rotating cover 410. When the rotating cover 400 rotates, one of the two driving members 420 is always close to the push rod 500, and the other is far away from the push rod 500. This ingenious design not only limits the movement range of the outer periphery of the floating ball, but also forms a partial semi-enclosed cavity between the two driving members to protect the floating ball.

[0039] In this embodiment, the assembly of the push rod is described as follows:

[0040] As shown in the accompanying drawings, the two ends of the push rod 500 are respectively provided with a fixing screw 510 and a fixing column 520, and the fixing screw 510 is fixed on the assembly cavity 300 formed by the inner cover. At this time, since the fixing screw 510 is fixed, it forms a rotation axis, so that the push rod moves along it, and the fixing column 520 forms a fixed end. At this time, the floating ball is subjected to the force of the push rod and can be controlled to stop at the corresponding groove 310 position; thereby, the cooking effect can be controlled.

[0041] Furthermore, a groove 310 is provided on the assembly cavity 300 , and the fixing column 520 moves closer to or away from the groove 520 as the push rod 500 moves.

[0042] See attached Figure 2-4As shown, in this embodiment, at the bottom of the assembly cavity 300, three grooves are specifically formed at different positions, and the three grooves form an arc trajectory along the assembly cavity, each groove corresponds to a different position of the push rod 500, that is, the groove 310 is a positioning point for the float to seal the exhaust port state, and then when the fixed column 520 moves to the groove position, it can fall into the groove to form a closed state, a half-open state and a fully open state of the float and the exhaust channel. The three groove positions correspond to the action of the fixed column 520 and the groove 320 when the push rod is in this position, forming a closed state, a half-open state and a fully open state of the exhaust channel 200.

[0043] During the entire use, the torsion spring 330 formed by the pressure spring is fixed on the pressure switch adjustment rod 510 by the fixed column 520, so that the fixed column 520 has a continuous downward force, and the fixed column 520 has a corresponding groove on the inner cover; the pressure switch adjustment rod 510 and the torsion spring (i.e., the torsion spring 330) are fixed to the inner cover by screws, and the torsion spring has a continuous force toward the right. How does the pressure switch adjustment rod adjust the pressure at this time? In this process, will it drive the float to move, and what is the role of the fixed column at this time? The adjustment rod is in the starting position, and is pushed by the external force of the rotating cover, and then pushes the float to move in the same direction. When the adjustment rod is in a half-open state, the positioning column moves downward and is positioned in the groove below, starting the positioning function.

[0044] In this embodiment, the structure of the push rod is described as follows:

[0045] As shown in the accompanying drawings, it can be seen that the push rod 500 in this embodiment is formed with three inclined push surfaces, and between the three inclined push surfaces, an obtuse angle is formed toward the center of the assembly cavity 300. At this time, the three inclined push surfaces form a blocking cavity toward the center, so that the float moves within this range, and at the same time, the blocking cavity of the push rod forms a certain protection.

[0046] In this embodiment, the push rod 500 is arranged near the edge of the assembly cavity 300, and the farthest inclined push surface of the push rod 500 is the shortest and is inclined toward the inner wall of the assembly cavity 300. In this embodiment, when the push rod structure is designed, the middle of the push rod is concave, and when the float is in the sealing state, it effectively avoids the float, so that the float can move freely when the pressure in the pot increases. At this time, the outermost inclined push surface is the shortest, and it forms an abutment toward the edge of the assembly cavity 300, so that the float is always within the controllable range and will not leave the outside of the push rod.

[0047] In order to realize the assembly of the rotating cover and the assembly cavity, a plurality of convex ribs 430 with guiding surfaces are formed at the opening of the rotating cover 400, and an assembly groove 320 matching the convex ribs 430 is provided on the outer wall of the assembly cavity 300. For better assembly, the convex ribs 430 form an upward guiding slope toward the bottom of the rotating cover, and one side of the assembly groove is provided with an assembly slope matching therewith.

[0048] By using the rib 430 with the guide surface, the rotating cover 400 moves downward first during assembly, and then moves upward along the guide surface to enter the inclined assembly groove, thereby preventing the rotating cover from falling off due to gravity after assembly.

[0049] Compared with direct locking, in this embodiment, a 0.3mm-0.5mm assembly gap is formed between the rotating cover 400 and the assembly cavity 300. The assembly gap is increased, and a screw-free method can be used when the two are assembled, which is more convenient for cleaning after disassembly.

[0050] Specifically, the assembly cavity 300 is a cavity with an opening at the top, and the top of the cavity forms a downwardly inclined surface. At this time, adding the downwardly inclined surface can achieve rapid assembly and reduce the waiting time for assembly alignment.

[0051] This embodiment is used in an electric rice cooker. At this time, the float, the exhaust channel and the push rod are assembled into the head cover, and the assembly cavity formed by the protrusion on the top of the head cover is then rotated, and the cover 400 is protruded to facilitate control.

[0052] When the utility model is applied to the electric rice cooker, the micro-pressure range that can be adjusted by the float ball is about 1.2-5Kpa. In the prior art, the conventional pressure fine-tuning device adjusts the pressure to 0.9-1.2kpa, and the adjustment method in this embodiment directly shortens the cooking time, for example, the conventional cooking time can be shortened from 30 minutes to 18-20 minutes; at the same time, the scheme in this embodiment can achieve freshness preservation during cooking, specifically, the scheme in this embodiment can lock in moisture to prevent rapid loss and retain the natural taste.

[0053] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0055] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A floating ball micro-pressure structure for an electric rice cooker, characterized in that: include, A float ball and an exhaust passage carrying the float ball; an assembly cavity located above the exhaust passage and communicating therewith; A rotating cover arranged on the assembly cavity; The rotating cover is provided with an exhaust port. When the rotating cover rotates, the push rod is driven to contact the floating ball, and the floating ball is driven to move along the exhaust channel to adjust the exhaust volume of the exhaust channel, thereby driving the pressure in the rice cooker to be adjusted.

2. The floating ball micro-pressure structure for an electric rice cooker according to claim 1, characterized in that: The bottom of the rotating cover is close to the exhaust port and extends toward the assembly cavity to form a driving member, and the driving member is close to or away from the push rod during rotation.

3. The floating ball micro-pressure structure for an electric rice cooker according to claim 2, characterized in that: There are two driving members, and the two driving members form a reciprocating motion track of the push rod. When the rotating cover rotates, one of the two driving members is always close to the push rod, and the other is far away from the push rod.

4. The floating ball micro-pressure structure for an electric rice cooker according to claim 1, characterized in that: The two ends of the push rod are respectively provided with fixing screws and fixing columns, and the fixing screws are fixed on the assembly cavity formed by the inner cover.

5. The floating ball micro-pressure structure for electric rice cooker according to claim 4, characterized in that: The assembly cavity is provided with a groove, and the fixing column moves close to or away from the groove as the push rod moves.

6. The floating ball micro-pressure structure for electric rice cooker according to claim 1, characterized in that: The push rod is formed to include three inclined push surfaces, and an obtuse angle is formed between the three inclined push surfaces and between any two push surfaces toward the center of the assembly cavity.

7. The floating ball micro-pressure structure for an electric rice cooker according to claim 6, characterized in that: The push rod is arranged near the edge of the assembly cavity, and the inclined push surface at the farthest end of the push rod is the shortest and is inclined toward the inner wall of the assembly cavity.

8. The floating ball micro-pressure structure for electric rice cooker according to claim 1, characterized in that: A plurality of convex ribs with guiding surfaces are formed at the opening of the rotating cover, and an outer wall of the assembly cavity is provided with an assembly groove matching the convex ribs.

9. The floating ball micro-pressure structure for an electric rice cooker according to claim 8, characterized in that: The convex rib forms an upward guiding inclined surface toward the bottom of the rotating cover, and one side of the assembly groove is provided with an assembly inclined surface matching the convex rib.

10. The floating ball micro-pressure structure for electric rice cooker according to claim 9, characterized in that: An assembly gap of 0.3 mm to 0.5 mm is formed between the rotating cover and the assembly cavity.

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