Pressure relief structure of pressure cooker

Abstract

The pressure relief structure of the pressure cooker comprises a cooker cover, the cooker cover is provided with an exhaust pipe and an exhaust valve block which can slide up and down along the exhaust pipe and is used for blocking the exhaust pipe, and the cooker cover is further provided with a warping plate assembly which is used for warping the exhaust valve block so as to open a pipe opening of the exhaust pipe. The exhaust valve block is formed by splicing a first shell and a second shell, a connecting structure enabling the first shell and the second shell to be detachably connected together is arranged on the splicing face of the first shell and the splicing face of the second shell, a first inserting groove is formed in the splicing face of the first shell, and a second inserting groove is formed in the splicing face of the second shell. The first inserting groove and the second inserting groove are folded to form an inserting cavity allowing the upper end of the exhaust pipe to be inserted therein, the first shell or the second shell is provided with a plug which extends into the inserting cavity and blocks a pipe opening of the exhaust pipe, and the first shell and the second shell are further provided with pressure relief holes communicated with the inserting cavity. And the first shell and the second shell are separated, so that the first slot and the second slot can be cleaned more conveniently.

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] With improved living standards and a growing demand for cooking efficiency, pressure cookers, as a kitchen appliance capable of quickly cooking food, have become widely popular in the market. However, pressure cooker safety remains a key concern for consumers. Effectively controlling pressure release and preventing accidents under high pressure conditions is a key consideration in pressure cooker design.

[0003] Existing pressure cooker pressure relief systems primarily consist of an exhaust pipe and an exhaust valve block. The exhaust valve block is connected to the exhaust pipe and automatically opens to release pressure when a certain pressure is reached, or it can be manually lifted to release pressure. Cleaning and inspection of conventional exhaust valve blocks are also inconvenient because their design makes the internal exhaust holes difficult to access. This can lead to food residue or impurities accumulating inside after prolonged use, hindering the performance of the exhaust valve and even posing a safety hazard.

[0004] The present utility model is made based on the above-mentioned situation. Utility Model Content

[0005] The utility model overcomes the deficiencies of the prior art and provides a pressure relief structure for a pressure cooker that is easy to clean.

[0006] The utility model is realized through the following technical solutions:

[0007] A pressure relief structure for a pressure cooker includes a lid, the lid being provided with an exhaust pipe and an exhaust valve block capable of sliding up and down along the exhaust pipe and used to block the exhaust pipe. The lid is also provided with a rocker assembly for tilting the exhaust valve block to thereby open an outlet of the exhaust pipe. The exhaust valve block is formed by splicing a first shell and a second shell. A connecting structure for detachably connecting the first and second shells is provided on the splicing surfaces of the first and second shells. A first slot is provided on the splicing surface of the first shell, and a second slot is provided on the splicing surface of the second shell. The first and second slots together form an insertion cavity for inserting the upper end of the exhaust pipe. A plug is provided on the first shell or the second shell, which extends into the insertion cavity and blocks the outlet of the exhaust pipe. Pressure relief holes communicating with the insertion cavity are also provided on the first and second shells.

[0008] The pressure relief structure of a pressure cooker as described above comprises a connecting structure comprising a plug-in block provided on a joint surface of the first shell body, and a plug-in slot provided on a joint surface of the second shell body for inserting the plug-in block. A receiving hole is provided at the bottom of the plug-in block, and a plug-in slot is provided on a lower side wall of the plug-in slot at a position corresponding to the receiving hole. A pin is slidably connected to the receiving hole and can be inserted into the plug-in slot. The length of the pin is less than or equal to the depth of the receiving hole, and the length of the pin is greater than the depth of the plug-in slot.

[0009] In the pressure relief structure of a pressure cooker as described above, a first magnetic component is provided on the plug-in block, and a second magnetic component that can be magnetically attracted to the first magnetic component is provided in the plug-in slot.

[0010] In the pressure relief structure of the pressure cooker as described above, the pressure relief hole includes a first groove provided on the joint surface of the first shell and a second groove provided on the joint surface of the second shell and corresponding to the position of the first groove, the first groove is connected to the first slot, and the second groove is connected to the second slot.

[0011] According to the pressure relief structure of the pressure cooker as described above, first mounting grooves are provided on the first shell joint surface and on both sides of the first slot, second mounting grooves are provided on the second shell joint surface facing the first mounting grooves, and a sealing strip is provided between the first mounting groove and the second mounting groove.

[0012] According to the pressure relief structure of the pressure cooker as described above, the seesaw assembly includes a toggle member and a seesaw member, the toggle member is rotatably connected to the pot cover, the toggle member is connected to a knob member, the middle portion of the seesaw member is rotatably connected to the pot cover, the front portion of the seesaw member is located below the toggle member and the rear portion of the seesaw member is located below the exhaust valve block, and the bottom of the toggle member is provided with a pressing portion that can press down the front portion of the seesaw member during its rotation, thereby causing the rear portion of the seesaw member to lift the exhaust valve block upward.

[0013] According to the pressure relief structure of the pressure cooker as described above, the toggle member is provided with a plug hole, the knob member is connected to a button member that can slide up and down relative to the toggle member, the bottom of the button member is provided with a linkage rod that can be inserted into the plug hole so as to drive the toggle member to rotate when the knob member is rotated, and a return spring that can push the button member to return upward and exit the plug hole is provided between the button member and the knob member.

[0014] In the pressure relief structure of a pressure cooker as described above, the pressing portion includes a pushing block connected to the bottom of the toggle member, and a pushing inclined surface is provided on a side of the pushing block close to the seesaw member.

[0015] In the pressure relief structure of a pressure cooker as described above, the button member is provided with a limit block for limiting the button member from falling out of the knob member.

[0016] In the pressure relief structure of a pressure cooker as described above, the plug-in hole is an eccentric hole, and the linkage rod is eccentrically connected to the button member.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The exhaust valve block is composed of a first shell and a second shell that are detachably spliced ​​together. The insertion cavity for inserting the upper end of the exhaust pipe is composed of a first slot provided on the splicing surface of the first shell and a second slot provided on the splicing surface of the second shell. When cleaning is required, the first shell and the second shell are separated, so that the first slot and the second slot are more convenient to clean.

[0019] 2. The plug-in block is inserted into the plug-in slot, and the pin in the accommodating hole is inserted into the socket under the influence of gravity to complete the locking. The first shell and the second shell can be separated by simply turning the exhaust valve block upside down to slide the pin out of the socket. Disassembly and assembly are very convenient and quick.

[0020] 3. A first magnetic member is provided on the plug-in block, and a second magnetic member is provided in the plug-in slot. The first magnetic member and the second magnetic member can be magnetically attracted to each other so that the first shell and the second shell can fit more closely.

[0021] 4. A sealing strip is provided between the first mounting groove and the second mounting groove, thereby limiting gas leakage from the joint surface between the first shell and the second shell during pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

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

[0024] Figure 2 This is an exploded view of the exhaust valve block in the utility model;

[0025] Figure 3 It is a cross-sectional view of the exhaust valve block in the utility model;

[0026] Figure 4 It is a structural diagram of the first shell in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the second shell in the utility model;

[0028] Figure 6 It is a cross-sectional view of the utility model;

[0029] Figure 7 This is the decomposition of the utility model Figure 1 ;

[0030] Figure 8This is the decomposition of the utility model Figure 2 . DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figures 1 to 8 The pressure relief structure of a pressure cooker shown in the figure includes a pot lid 1, which is provided with an exhaust pipe 2 and an exhaust valve block 3 that can slide up and down along the exhaust pipe 2 and is used to block the exhaust pipe 2. The pot lid 1 is also provided with a rocker assembly for tilting the exhaust valve block 3 to open the pipe opening of the exhaust pipe 2. The exhaust valve block 3 is spliced ​​by a first shell 31 and a second shell 32. The splicing surfaces of the first shell 31 and the second shell 32 are provided with a connecting structure that allows the two to be detachably connected together. A first slot 311 is provided on the splicing surface A of the first shell 31, and a second slot 321 is provided on the splicing surface B of the second shell 32. The first slot 311 and the second slot 321 are combined to form an insertion cavity 30 for inserting the upper end of the exhaust pipe 2. A plug 300 is provided on the first shell 31 or the second shell 32, which extends into the insertion cavity 30 and blocks the pipe opening of the exhaust pipe 2. The first shell 31 and the second shell 32 are also provided with a pressure relief hole 301 communicating with the insertion cavity 30.

[0033] The exhaust valve block 3 is composed of a first shell 31 and a second shell 32 that are detachably connected. The insertion cavity 30 for inserting the upper end of the exhaust pipe 2 is composed of a first slot 311 provided on the splicing surface A of the first shell 31 and a second slot 321 provided on the splicing surface B of the second shell 32. When cleaning is required, the first shell 31 and the second shell 32 are separated, making it easier to clean the first slot 311 and the second slot 321. The exhaust pipe 2 is connected to the pot cover 1 via threaded fasteners or other connecting structures. A limiting protrusion is provided at the upper end of the exhaust pipe 2, and a limiting ring is provided on the groove wall of the first slot 311 and the second slot 321 to cooperate with the limiting protrusion to limit the exhaust valve block 3 from dislodging. Of course, the limiting ring does not completely prevent the exhaust valve block 3 from dislodging, but it increases the difficulty of dislodging the exhaust valve block 3, and the exhaust valve block 3 can be pulled out even with greater force.

[0034] In some embodiments, the connection structure includes a plug-in block 312 provided on the splicing surface A of the first shell 31, and a plug-in slot 322 provided on the splicing surface B of the second shell 32 for inserting the plug-in block 312. The bottom of the plug-in block 312 is provided with a receiving hole 313, and the lower side groove wall of the plug-in slot 322 is provided with a plug-in hole 323 facing the receiving hole 313. A pin 324 that can be inserted into the plug-in hole 323 is slidably connected in the receiving hole 313. The length of the pin 324 is less than or equal to the depth of the receiving hole 313, and the length of the pin 324 is greater than the depth of the plug-in hole 323.

[0035] The plug block 312 is inserted into the plug slot 322, and the latch 324 in the receiving hole 313 is inserted into the socket 323 under the influence of gravity, thereby completing the locking. The first housing 31 and the second housing 32 can be separated by simply turning the exhaust valve block 3 upside down to slide the latch 323 out of the socket 323, making assembly and disassembly very convenient and quick. The plug block 312 and the first housing 31 are integrally structured, but the plug block 312 can also be connected to the first housing 32 via threaded fasteners or other connecting structures.

[0036] Furthermore, a first magnetic member 315 is provided on the plug-in block 312, and a second magnetic member 325 that can be magnetically attracted to the first magnetic member 315 is provided in the plug-in slot 322. The first magnetic member 315 and the second magnetic member 325 can be magnetically attracted to each other so that the first shell 31 and the second shell 32 can fit more tightly. Among them, the first magnetic member 315 and the second magnetic member 325 can both be magnets, or one can be a magnet and the other a ferromagnetic object. The first magnetic member 315 is glued to the plug-in block 312, and of course it can also be connected to the plug-in block 312 by threaded fasteners or other connection methods. The second magnetic member 325 is glued to the slot wall of the plug-in slot 322, and of course it can also be connected to the slot wall of the plug-in slot 322 by threaded fasteners or other connection methods.

[0037] In some embodiments, the pressure relief hole 301 includes a first groove 3011 provided on the joint surface A of the first shell 31 and a second groove 3012 provided on the joint surface B of the second shell 32 and facing the first groove 3011. The first groove 3011 communicates with the first slot 311, and the second groove 3012 communicates with the second slot 321. When cleaning is required, the first shell 31 and the second shell 32 are separated, making it easier to clean the pressure relief hole 301.

[0038] In some embodiments, a first mounting groove 316 is provided on the joint surface A of the first shell 31 and on both sides of the first slot 311, and a second mounting groove 326 is provided on the joint surface B of the second shell 32, facing the first mounting groove 316. A sealing strip 317 is provided between the first mounting groove 316 and the second mounting groove 326, thereby limiting gas leakage from the joint surface between the first shell 31 and the second shell 32 when pressure is released.

[0039] In some embodiments, the seesaw assembly includes a toggle member 4 and a seesaw member 5. The toggle member 4 is rotatably connected to the pot cover 1. The toggle member 4 is connected to a knob member 6. The middle part of the seesaw member 5 is rotatably connected to the pot cover 1. The front part of the seesaw member 5 is located below the toggle member 4 and the rear part of the seesaw member 5 is located below the exhaust valve block 3. The bottom of the toggle member 4 is provided with a top pressing portion that can press down the front part of the seesaw member 5 during its rotation, thereby causing the rear part of the seesaw member 5 to lift the exhaust valve block 3 upward.

[0040] Specifically, a plug-in hole 41 is provided on the toggle member 4, and a button member 7 is connected to the knob member 6, which can slide up and down relative to it and rotate with the knob member 6. A linkage rod 71 is provided at the bottom of the button member 7, which can be inserted into the plug-in hole 41 to drive the toggle member 4 to rotate when the knob member 6 is rotated. A reset spring 8 is provided between the button member 7 and the knob member 6, which can push the button member 7 to reset upward and exit the plug-in hole 41, that is, when the button member 7 is pressed and the knob member 6 is rotated to drive the rocker member 5 to lift the exhaust valve block 3 for pressure relief. A limit block 73 is provided on the button member 7 to limit its escape from the knob member 6, and the limit block 73 is an elastic buckle connected to the bottom of the knob member 6.

[0041] Furthermore, the insertion hole 41 is an eccentric hole, and the linkage rod 71 is eccentrically connected to the button member 7. Therefore, when the knob member 6 is rotated, the linkage rod 71 can drive the toggle member 4 to rotate. The pressing portion includes a push block 72 connected to the bottom of the toggle member 4. The push block 72 has a push slope 721 on the side near the rocker member 5. The push slope 721 presses the front of the rocker member 5 downward during rotation.

Claims

1. A pressure relief structure for a pressure cooker, characterized in that: The invention comprises a pot cover (1), the pot cover (1) is provided with an exhaust pipe (2) and an exhaust valve block (3) that can slide up and down along the exhaust pipe (2) and is used to block the exhaust pipe (2), the pot cover (1) is also provided with a rocker assembly for tilting the exhaust valve block (3) to open the pipe opening of the exhaust pipe (2), the exhaust valve block (3) is formed by splicing a first shell (31) and a second shell (32), the splicing surface of the first shell (31) and the second shell (32) is provided with a connecting structure that allows the two to be detachably connected together, and the first shell (31) and the second shell (32) are connected to each other. 1) is provided with a first slot (311), and a second slot (321) is provided on a splicing surface of the second shell (32); the first slot (311) and the second slot (321) are combined to form an insertion cavity (30) for inserting the upper end of the exhaust pipe (2); the first shell (31) or the second shell (32) is provided with a plug (300) that extends into the insertion cavity (30) and seals the pipe opening of the exhaust pipe (2); the first shell (31) and the second shell (32) are also provided with a pressure relief hole (301) that communicates with the insertion cavity (30).

2. The pressure relief structure of a pressure cooker according to claim 1, characterized in that: The connection structure comprises a plug-in block (312) provided on the splicing surface of the first shell (31), and a plug-in slot (322) provided on the splicing surface of the second shell (32) and for inserting the plug-in block (312). The bottom of the plug-in block (312) is provided with a receiving hole (313). A plug-in hole (323) is provided on the lower side groove wall of the plug-in slot (322) at a position corresponding to the receiving hole (313). A plug-in pin (324) capable of being inserted into the plug-in hole (323) is slidably connected in the receiving hole (313). The length of the plug-in pin (324) is less than or equal to the depth of the receiving hole (313), and the length of the plug-in pin (324) is greater than the depth of the plug-in hole (323).

3. The pressure relief structure of a pressure cooker according to claim 2, characterized in that: A first magnetic attraction member (315) is provided on the plug-in block (312), and a second magnetic attraction member (325) capable of being magnetically attracted to the first magnetic attraction member (315) is provided in the plug-in slot (322).

4. The pressure relief structure of a pressure cooker according to claim 3, characterized in that: The pressure relief hole (301) comprises a first groove (3011) provided on the splicing surface of the first shell (31) and a second groove (3012) provided on the splicing surface of the second shell (32) and corresponding to the position of the first groove (3011); the first groove (3011) is communicated with the first slot (311), and the second groove (3012) is communicated with the second slot (321).

5. The pressure relief structure of a pressure cooker according to claim 4, characterized in that: A first mounting groove (316) is provided on the splicing surface of the first shell (31) and located on both sides of the first slot (311); a second mounting groove (326) is provided on the splicing surface of the second shell (32) and is opposite to the first mounting groove (316); and a sealing strip (317) is provided between the first mounting groove (316) and the second mounting groove (326).

6. The pressure relief structure of a pressure cooker according to any one of claims 1 to 5, characterized in that: The seesaw assembly comprises a toggle member (4) and a seesaw member (5); the toggle member (4) is rotatably connected to the pot cover (1); the toggle member (4) is connected to a knob member (6); the middle portion of the seesaw member (5) is rotatably connected to the pot cover (1); the front portion of the seesaw member (5) is located below the toggle member (4) and the rear portion of the seesaw member (5) is located below the exhaust valve block (3); and the bottom of the toggle member (4) is provided with a pressing portion that can press down the front portion of the seesaw member (5) during its rotation, thereby causing the rear portion of the seesaw member (5) to lift the exhaust valve block (3) upward.

7. The pressure relief structure of a pressure cooker according to claim 6, characterized in that: The toggle member (4) is provided with an inserting hole (41), and the knob member (6) is connected with a button member (7) capable of sliding up and down relative to the toggle member (4). The bottom of the button member (7) is provided with a linkage rod (71) capable of being inserted into the inserting hole (41) so as to drive the toggle member (4) to rotate when the knob member (6) is rotated. A return spring (8) capable of pushing the button member (7) to return upward and exit the inserting hole (41) is provided between the button member (7) and the knob member (6).

8. The pressure relief structure of a pressure cooker according to claim 7, characterized in that: The pressing portion comprises a pushing block (72) connected to the bottom of the toggle member (4), and a pushing inclined surface (721) is provided on the pushing block (72) on a side close to the seesaw member (5).

9. The pressure relief structure of a pressure cooker according to claim 8, characterized in that: The button member (7) is provided with a limiting block (73) for limiting the button member (7) from falling out of the knob member (6).

10. The pressure relief structure of a pressure cooker according to claim 9, characterized in that: The plug-in hole (41) is an eccentric hole, and the linkage rod (71) is eccentrically connected to the button member (7).

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