Pressure relief structure of pressure cooker

Abstract

The utility model relates to the technical field of pressure cookers, in particular to a pressure relief structure of a pressure cooker, which comprises a cover, a pressure relief valve mounted on the cover and a lever mounted in the cover, the head end of the lever is in transmission connection with the pressure relief valve and used for opening and closing the pressure relief valve, a first branch and a second branch are arranged at the head end of the lever, and the first branch is in transmission connection with the pressure relief valve. The second branch and the first branch synchronously tilt up and down; the upper end of the knob protrudes out of the surface of the cover body, the lower end of the knob extends into the cover body, a rotating disc is arranged on the periphery of the lower end of the knob, the second branch abuts against the rotating disc, a high-position face and a low-position face are arranged on the rotating disc, and the second branch is switched between the high-position face and the low-position face by rotating the knob; and the head end of the lever tilts up and down. The second branch is switched between the high-position face and the low-position face by rotating the rotary knob, the head end of the lever tilts up and down, then the pressure release valve is opened and closed, and the structure is simple and feasible.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure cookers, in particular to a pressure relief structure of a pressure cooker. Background Art

[0002] The lid of the existing pressure cooker is provided with a pressure relief valve, the purpose of which is to control the gas pressure in the pressure cooker.

[0003] Patent publication number CN203182678U discloses a manual exhaust mechanism for a pressure cooker, comprising a pot lid, a pressure limiting valve, an exhaust nozzle, an exhaust button, a lever installed on the pot lid, and a push rod sliding on the pot lid, wherein the pressure limiting valve covers the exhaust nozzle, the upper part of the push rod presses against the lower part of the pressure limiting valve, one end of the lever presses against the lower part of the push rod, and the other end of the lever presses against the lower part of the exhaust button, and the exhaust button is provided with an elastic member for resetting; a clamping plate is horizontally slidably connected to the pot lid, and the clamping plate is connected to an elastic element for resetting; a protrusion is provided at the lower part of the above-mentioned exhaust button, and an inclined surface is provided between the lower part of the protrusion and the clamping plate for driving the clamping plate to slide horizontally, so that the upper part of the protrusion can be clamped under the clamping plate to keep the exhaust button in a depressed state; a reset button is also provided on the pot lid, and the reset button drives the clamping plate to slide horizontally through the inclined surface so that the clamping plate is separated from the protrusion, thereby resetting the exhaust button.

[0004] However, the manual exhaust mechanism of the above patent solution realizes the switching between high pressure and no pressure through the exhaust button and the reset button respectively. It requires many parts and has a relatively complex structure. The pressure relief structure has a certain room for simplification. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the present utility model is to provide a pressure relief structure for a pressure cooker with a simple and feasible structure.

[0006] The technical solution adopted by the utility model to solve the problem is: a pressure relief structure of a pressure cooker, comprising a cover body, a pressure relief valve installed on the cover body, a lever installed in the cover body, a head end of the lever being transmission-connected to the pressure relief valve and used for opening and closing the pressure relief valve, a first branch and a second branch being provided at the head end of the lever, the first branch being transmission-connected to the pressure relief valve, and the second branch being tilted up and down synchronously with the first branch; and a knob being further provided, the upper end of the knob protruding from the surface of the cover body, the lower end of the knob being extended into the cover body, a rotating disk being provided on the outer periphery of the lower end of the knob, the second branch being in contact with the rotating disk, the rotating disk being provided with a high surface and a low surface, the second branch being switched between the high surface and the low surface by rotating the knob, thereby causing the head end of the lever to tilt up and down.

[0007] As a further improvement of the above technical solution, an axial hole is provided in the middle of the lever, and a rotating shaft is installed on the cover body. The rotating shaft passes through the axial hole to rotatably connect the lever to the cover body, and the two ends of the lever can tilt up and down around the rotating shaft; a spring is provided between the tail end of the lever and the cover body, and under the action of the spring, the tail end of the lever always maintains an upward trend, and the head end of the lever always maintains a downward trend; the high surface and the low surface are provided on the upper surface of the rotating disk, and the second branch abuts against the upper surface of the rotating disk.

[0008] As a further improvement of the above technical solution, the pressure relief valve includes a valve seat and a gravity valve core, the valve seat is provided with an exhaust channel, and the gravity valve core is provided with a plug, and the plug relies on the weight of the gravity valve core itself to block the exhaust channel; the first branch abuts against the lower end of the gravity valve core and drives the gravity valve core to move up and down.

[0009] As a further improvement of the above technical solution, the high surface and the low surface are transitioned through an inclined surface.

[0010] As a further improvement of the above technical solution, the lever is Y-shaped.

[0011] The beneficial effects of the utility model are as follows: the utility model provides a first branch and a second branch which are synchronously tilted up and down at the head end of the lever, and the first branch is transmission-connected to the pressure relief valve; a knob is provided, and a rotating disk is provided on the outer periphery of the lower end of the knob, and the second branch abuts against the rotating disk, and the rotating disk is provided with a high surface and a low surface, and the second branch is switched between the high surface and the low surface by rotating the knob, and the head end of the lever tilts up and down, thereby opening and closing the pressure relief valve, and the structure is simple and feasible. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 This is a schematic diagram of part of the structure of the utility model in a high-pressure state;

[0014] Figure 2 This is a partial structural diagram of the utility model in the pressure relief state;

[0015] Figure 3 This is a structural sectional view of the utility model;

[0016] Figure 4 It is a schematic diagram of the overall structure of the utility model;

[0017] In the figure: 1-cover, 11-upper cover, 12-lower cover, 13-cavity, 14-rotating shaft, 15-spring, 2-lever, 21-axis hole, 211-first branch, 212-second branch, 3-pressure relief valve, 31-gravity valve core, 311-plug, 32-valve seat, 321-exhaust channel, 4-knob, 41-rotating disk, 411-high surface, 412-inclined surface, 413-low surface. DETAILED DESCRIPTION

[0018] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Reference Figures 1 to 3A pressure relief structure for a pressure cooker includes a cover body 1, wherein the cover body 1 includes an upper cover 11 and a lower cover 12, a cavity 13 is provided between the upper cover 11 and the lower cover 12, a pressure relief valve 3 is installed on the cover body 1, and the pressure relief valve 3 passes through the cover body 1, a lever 2 is installed in the inner cavity of the cover body 1, the head end of the lever 2 is transmission-connected with the pressure relief valve 3, and the head end of the lever 2 opens and closes the pressure relief valve 3 by tilting up and down, and the head end of the lever 2 is provided with a first branch 211 and a second branch 212 (the lever 2 is Y-shaped as a whole), the first branch 211 is transmission-connected with the pressure relief valve 3, and the second branch 212 tilts up and down synchronously with the first branch 211 The lever 2 is relatively fixed on the horizontal plane; it also includes a knob 4, the upper end of the knob 4 protrudes from the surface of the cover body 1, and the lower end of the knob 4 extends into the cavity 13 of the cover body 1. The outer periphery of the lower end of the knob 4 is provided with a rotating disk 41, and the second branch 212 abuts against the rotating disk 41. The rotating disk 41 is provided with a high surface 411 and a low surface 413 (with different heights). By rotating the knob 4, the second branch 212 is switched between the high surface 411 and the low surface 413, so that the head end of the second branch 212 is tilted up and down, and the up and down tilting of the second branch 212 drives the first branch 211 to tilt up and down, thereby opening and closing the pressure relief valve 3.

[0023] In some embodiments, an axis hole 21 is provided in the middle of the lever 2, and a rotating shaft 14 is installed on the cover body 1. The rotating shaft 14 passes through the axis hole 21 to rotatably connect the lever 2 to the cover body 1, and the two ends of the lever 2 can tilt up and down around the rotating shaft 14; a spring 15 is provided between the tail end of the lever 2 and the cover body 1. Under the action of the spring 15, the tail end of the lever 2 always maintains an upward trend, and the head end of the lever 2 always maintains a downward trend; the high surface 411 and the low surface 413 are provided on the upper surface of the rotating disk 41, and the second branch 212 abuts against the upper surface of the rotating disk 41.

[0024] In some other embodiments, the tail end of the lever 2 may also always maintain a downward trend, and the head end of the lever 2 may always maintain an upward trend. At this time, the high surface 411 and the low surface 413 are arranged on the lower surface of the rotating disk 41, and the second branch 212 abuts against the lower surface of the rotating disk 41.

[0025] Specifically, in some embodiments, a first connecting ear is provided in the middle of the lever 2, the axial hole 21 is provided on the first connecting ear, a second connecting ear corresponding to the first connecting ear is integrally provided on the lower surface of the upper cover 11, and a hole position corresponding to the axial hole 21 is provided on the second connecting ear, and the rotating shaft 14 passes through the axial hole 21 and the hole position.

[0026] In some embodiments, the pressure relief valve 3 includes a valve seat 32 and a gravity valve core 31, the valve seat 32 is provided with an exhaust channel 321, and the gravity valve core 31 is provided with a plug 311, and the plug 311 relies on the weight of the gravity valve core 31 to block the upper opening of the exhaust channel 321; the first branch 211 abuts against the lower end of the gravity valve core 31 and drives the gravity valve core 31 to move up and down.

[0027] In a preferred embodiment, the high surface 411 and the low surface 413 are transitioned through an inclined surface 412 , making the switching smoother.

[0028] Combine Figure 1 and Figure 2 When the second branch 212 is at the low surface 413, the gravity valve core 31 moves downward due to gravity, and the plug 311 blocks the exhaust channel 321, which is now in a high-pressure state; when the knob 4 is rotated clockwise, the rotating disk 41 rotates synchronously with the knob 4, and the second branch 212 moves up along the inclined surface 412 to the high surface 411, and the head end of the lever 2 moves up as a whole. The first branch 211 tilts the gravity valve core 31 to move up, and the plug 311 moves away from the exhaust channel 321, which is now in a pressure relief state.

[0029] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressure relief structure for a pressure cooker, comprising a cover (1), a pressure relief valve (3) mounted on the cover (1), a lever (2) mounted inside the cover (1), a head end of the lever (2) being in transmission connection with the pressure relief valve (3) and used for opening and closing the pressure relief valve (3), characterized in that: The first end of the lever (2) is provided with a first branch (211) and a second branch (212), the first branch (211) is transmission-connected to the pressure relief valve (3), and the second branch (212) and the first branch (211) are synchronously tilted up and down; The invention also includes a knob (4), wherein the upper end of the knob (4) protrudes from the surface of the cover body (1), and the lower end of the knob (4) extends into the cover body (1); a rotating disk (41) is provided on the outer periphery of the lower end of the knob (4); the second branch (212) abuts against the rotating disk (41); and the rotating disk (41) is provided with a high surface (411) and a low surface (413); by rotating the knob (4), the second branch (212) switches between the high surface (411) and the low surface (413), thereby causing the head end of the lever (2) to tilt up and down.

2. The pressure relief structure of a pressure cooker according to claim 1, wherein: A shaft hole (21) is provided in the middle of the lever (2), a rotating shaft (14) is installed on the cover body (1), and the rotating shaft (14) passes through the shaft hole (21) to rotatably connect the lever (2) to the cover body (1), and both ends of the lever (2) can tilt up and down around the rotating shaft (14); A spring (15) is provided between the tail end of the lever (2) and the cover body (1). Under the action of the spring (15), the tail end of the lever (2) always maintains an upward tendency, and the head end of the lever (2) always maintains a downward tendency; The high surface (411) and the low surface (413) are arranged on the upper surface of the rotating disk (41), and the second branch (212) abuts against the upper surface of the rotating disk (41).

3. The pressure relief structure of a pressure cooker according to claim 1, wherein: The pressure relief valve (3) comprises a valve seat (32) and a gravity valve core (31); an exhaust passage (321) is provided on the valve seat (32); a plug (311) is provided on the gravity valve core (31); the plug (311) blocks the exhaust passage (321) by relying on the weight of the gravity valve core (31); The first branch (211) abuts against the lower end of the gravity valve core (31) and drives the gravity valve core (31) to move up and down.

4. The pressure relief structure of a pressure cooker according to claim 1, wherein: The high surface (411) and the low surface (413) transition through an inclined surface (412).

5. The pressure relief structure of a pressure cooker according to claim 1, wherein: The lever (2) is Y-shaped.

Images