CN109938596A - A kind of pressure relief valve for pressure cooker - Google Patents
A kind of pressure relief valve for pressure cooker Download PDFInfo
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- CN109938596A CN109938596A CN201910320409.4A CN201910320409A CN109938596A CN 109938596 A CN109938596 A CN 109938596A CN 201910320409 A CN201910320409 A CN 201910320409A CN 109938596 A CN109938596 A CN 109938596A
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- 238000007789 sealing Methods 0.000 claims abstract description 43
- 230000002265 prevention Effects 0.000 claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract 3
- 230000005484 gravity Effects 0.000 claims description 27
- 238000005507 spraying Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 56
- 238000013467 fragmentation Methods 0.000 abstract 1
- 238000006062 fragmentation reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 12
- 230000004308 accommodation Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Food-Manufacturing Devices (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention belongs to relief valve technical fields, specifically a kind of pressure relief valve for pressure cooker, it further include airtight column, sealing element, spring element, weight valve, blowout prevention baffle, stop collar, articulation piece, connecting rod and fragmentation cell including center pillar and the bleeder port being provided on center pillar；The upper end of the airtight column is fixed with one end of connecting rod, and the other end sliding of connecting rod runs through the roof of center pillar and is fixed with weight valve, spring element is socketed on connecting rod, spring element is for pushing airtight column to block bleeder port；By two articulation pieces, symmetrically hingedly there are two blowout prevention baffles for the two sides of the weight valve；By No.1 shaft, rope, No. two cooperations between shaft and crushing shell, realize in food materials blocking, crushing shell rotation to carry out tearing to food materials broken, reduce the volume of food materials, food materials be quickly discharged, avoid the excessive blocking bleeder port of food materials volume.
Description
Technical Field
The invention belongs to the technical field of pressure relief valves, and particularly relates to a pressure relief valve of a pressure cooker.
Background
The basic construction of a pressure cooker is a closed steel vessel incorporating a pressure relief valve. The boiling point increases due to the liquid being at a higher pressure. The pressure cooker applies pressure to the water aiming at the physical phenomenon, so that the water can reach higher temperature without boiling, thereby accelerating the efficiency of stewing food, and achieving the purposes of saving time and energy; the pressure relief valve used in the prior pressure cooker can only achieve the purpose of discharging gas to reduce the pressure in the pressure cooker, and when the air leakage hole is blocked by food materials, the purpose of pressure relief can not be effectively and quickly achieved.
The pressure release valve of pressure cooker has also appeared a patent among the prior art, chinese patent like application No. 2013100535399 discloses a pressure cooker's release valve structure, this pressure cooker is by a pot body and one cover in this pot body top of covering, wherein the pot cover forms a storage tank, and lie in this storage tank department and set up release valve, this release valve mainly comprises center pillar, airtight post, elastic component and gravity valve, wherein the center pillar forms an accommodation space, and form the communicating release hole of plural number and this accommodation space and perforation in this center pillar outer wall, set up airtight post in the accommodation space, define the terminal post of a next-door neighbour this center pillar inner wall in airtight post one end, and the diameter of this release hole is equated to the width of this terminal post.
According to the technical scheme, the air release valve structure of the pressure cooker can enable the blocked food materials to be discharged in a proper space through the air release hole. However, in the technical scheme, as the food materials blocked in the center column are various, when the food materials with larger volume are met, the food materials with larger volume can be blocked at the air leakage port and are difficult to be quickly discharged due to the limited aperture of the air leakage hole, so that the pressure in the pressure cooker is continuously increased, and safety accidents are easily caused; making the solution limited.
Disclosure of Invention
In order to make up the defects of the prior art, the problem that the food material with larger volume is blocked at the air leakage opening and is difficult to discharge quickly is solved; the invention provides a pressure release valve of a pressure cooker.
The technical scheme adopted by the invention for solving the technical problems is as follows: the pressure release valve of the pressure cooker comprises a center column, an air leakage hole formed in the center column, an air-tight column, a sealing element, an elastic element, a gravity valve, a blowout prevention baffle, a limiting ring, a hinge element, a connecting rod and a crushing unit, wherein the air-tight column is arranged on the center column; the upper end of the airtight column is fixedly connected with one end of a connecting rod, the other end of the connecting rod penetrates through the top wall of the middle column in a sliding mode and is fixedly connected with a gravity valve, and an elastic piece is sleeved on the connecting rod and used for pushing the airtight column to block the air release hole; two sides of the gravity valve are symmetrically hinged with two blowout prevention baffles through two hinged pieces; the lower side of the blowout prevention baffle is bent inwards and extends to form a claw-shaped structure; the limiting ring is fixedly sleeved on the outer side of the center pillar, the cross section of the limiting ring is of a triangular structure, and the limiting ring is used for being matched with the blowout prevention baffle plate to enable the blowout prevention baffle plate to be opened towards two sides; the sealing element is arranged between the airtight column and the inner wall of the central column and is used for filling a gap between the airtight column and the central column; wherein,
the hinge piece comprises a first connecting plate, a second connecting plate and a first rotating shaft; the first connecting plate is fixedly connected to the gravity valve, and a first rotating shaft is rotatably arranged on the first connecting plate; the second connecting plate is fixedly sleeved on the first rotating shaft and fixedly connected to the blowout prevention baffle;
the crushing unit comprises a rope, a fixed pulley block, a crushing plate, a second rotating shaft, a torsion spring and a rubber sleeve; the second rotating shaft is rotatably arranged in a mounting groove formed in the lower side of the airtight column, one side, close to each other, of each of the two second rotating shafts is fixedly connected with a crushing plate, the crushing plates are used for tearing a blockage, a torsion spring used for resetting the second rotating shaft is arranged between each second rotating shaft and the mounting groove, and a rope used for driving the second rotating shaft to rotate is connected to each second rotating shaft in a winding manner; the rope penetrates through the top of the mounting groove and reaches a cavity formed in the airtight column, and rubber sleeves used for sealing are arranged on the rope and the airtight column; a fixed pulley block is arranged in the cavity and used for limiting the rope; through holes for the rope to pass through are formed in the connecting rod and the gravity valve, and the two through holes are communicated with each other; the rope sequentially penetrates through the airtight column, the through hole in the connecting rod and the through hole in the gravity valve, the rope reaches the hinged position of the gravity valve and the blowout prevention baffle and is wound on the first rotating shaft, and the first rotating shaft can rotate and drive the crushing plates to be separated and opened when the blowout prevention baffle is opened outwards through the matching among the first rotating shaft, the rope, the fixed pulley block and the second rotating shaft; when eating the material jam, pressure in the pressure cooker increases rapidly, make airtight post by jack-up that makes progress, the hole of losing heart is exposed gradually this moment, airtight post is when jack-up that makes progress, through the connecting rod, the cooperation between gravity valve and blowout prevention baffle, blowout prevention baffle can the rebound, and the lower extreme of blowout prevention baffle can slide on the spacing ring, make two blowout prevention baffle open of keeping away from each other, blowout prevention baffle drives pivot rotation No. one through No. two connecting plates this moment, make pivot wind the rope No. one, the rope is with pivot pulling No. two, make the rotation of keeping away from each other of two crushing boards, tear the edible material, reduce the volume of eating the material, avoid eating the material volume too big hole of losing heart of jam.
Preferably, one end of the crushing plate, which is far away from the second rotating shaft, is bent downwards to form a rake shape; when two crushing boards kept away from each other's rotation, the crushing board can rake away the edible material to the rake the same, has improved the effect of tearing up, can further reduce the probability that the disappointing hole is blockked up.
Preferably, the lower end of the crushing plate is provided with a sliding groove, and a plurality of blades are arranged in the sliding groove in a sliding manner; the adjacent blades are connected through a rubber rod, and the blades are used for chopping the blockage; when the crushing plate rakes away the food material, the blades cut up the food material, and the blades can be subjected to the pressure of the food material to shake left and right when cutting up the food material, so that the two adjacent blades can cut up the food material again, the effect of cutting up is further improved, and the food material can be discharged through the air leakage holes quickly.
Preferably, the connecting rod is provided with a spiral thread, and the connecting spiral thread penetrates through the top of the middle column; the airtight post can take place to rotate when rebound for the breaker takes place to rotate when cuting eating the material, has increased the area of contact between breaker and the edible material, further improves the effect of cutling up, makes to eat the material and can discharge through the hole of losing heart faster.
Preferably, the sealing element consists of a bearing and a sealing ring; the bearing is arranged in an annular groove formed in the inner wall of the middle column, a sealing ring is sleeved in the bearing, and the sealing ring is extruded on the airtight column; through the cooperation between bearing and seal ring for the sealing ring can rotate along with airtight post together, reduces the friction between airtight post and the seal ring, increases the life of sealing ring.
Preferably, an annular air passage is formed in the sealing ring, the annular air passage is communicated with an inflator through a hose, the inflator is arranged on the blowout prevention baffle and used for inflating the annular air passage, and the section of the sealing ring is in a trapezoidal shape with bent sides; through pressing the inflater, can be to filling into the air in the annular air flue for the sealing ring can still can be tightly on the airtight post after wearing and tearing, and when annular air flue inflation deformation, can promote the close laminating of lateral wall of sealing ring on the inside wall of center pillar, realize better sealed effect simultaneously.
The invention has the following beneficial effects:
1. according to the pressure release valve for the pressure cooker, the first rotating shaft, the rope, the second rotating shaft and the crushing plate are matched, so that when the food material is blocked, the crushing plate rotates to tear and crush the food material, the size of the food material is reduced, the food material can be quickly discharged, and the phenomenon that the gas leakage hole is blocked due to the overlarge size of the food material is avoided.
2. According to the pressure release valve for the pressure cooker, the sealing ring can still be tightly extruded on the airtight column after being worn by filling air into the annular air passage, and meanwhile, when the annular air passage expands and deforms, the side wall of the sealing ring can be pushed to be tightly attached to the inner side wall of the central column, so that a better sealing effect is achieved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the invention in operation after it has been plugged;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a partial enlargement at B of FIG. 2;
FIG. 5 is a view of the connection between the hinge, the gravity valve and the blowout preventer shield;
in the figure: the device comprises a center pillar 1, a gas release hole 2, a gas-tight pillar 3, a sealing element 4, a bearing 41, a sealing ring 42, an annular gas channel 421, a gas pump 422, an elastic element 5, a gravity valve 6, a blowout prevention baffle 7, a limiting ring 8, a hinge element 9, a first connecting plate 91, a second connecting plate 92, a first rotating shaft 93, a connecting rod 10, a crushing unit 11, a rope 111, a fixed pulley block 112, a crushing plate 113, a second rotating shaft 114, a torsion spring 115, a rubber sleeve 116, a sliding chute 117, a blade 118 and a rubber rod 119.
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, the pressure release valve for a pressure cooker of the present invention comprises a center pillar 1 and an air release hole 2 formed on the center pillar 1, and further comprises an airtight pillar 3, a sealing member 4, an elastic member 5, a gravity valve 6, a blowout prevention baffle 7, a limiting ring 8, a hinge member 9, a connecting rod 10 and a crushing unit 11; the upper end of the airtight column 3 is fixedly connected with one end of a connecting rod 10, the other end of the connecting rod 10 penetrates through the top wall of the middle column 1 in a sliding mode and is fixedly connected with a gravity valve 6, an elastic piece 5 is sleeved on the connecting rod 10, and the elastic piece 5 is used for pushing the airtight column 3 to block the air leakage hole 2; two sides of the gravity valve 6 are symmetrically hinged with two blowout prevention baffles 7 through two hinge parts 9; the anti-spraying baffle 7 is of an arc structure, and the lower side of the anti-spraying baffle 7 is bent inwards and extends to form a claw-shaped structure; the limiting ring 8 is fixedly sleeved on the outer side of the center pillar 1, the cross section of the limiting ring 8 is of a triangular structure, and the limiting ring 8 is used for being matched with the blowout prevention baffle 7 to enable the blowout prevention baffle 7 to be opened towards two sides; the sealing element 4 is arranged between the airtight column 3 and the inner wall of the central column 1, and the sealing element 4 is used for filling a gap between the airtight column 3 and the central column 1; wherein,
the hinge part 9 comprises a first connecting plate 91, a second connecting plate 92 and a first rotating shaft 93; the first connecting plate 91 is fixedly connected to the gravity valve 6, and a first rotating shaft 93 is rotatably arranged on the first connecting plate 91; the second connecting plate 92 is fixedly sleeved on the first rotating shaft 93, and the second connecting plate 92 is fixedly connected on the blowout prevention baffle 7;
the crushing unit 11 comprises a rope 111, a fixed pulley block 112, a crushing plate 113, a second rotating shaft 114, a torsion spring 115 and a rubber sleeve 116; the second rotating shaft 114 is rotatably arranged in a mounting groove formed in the lower side of the airtight column 3, one side of each of the two second rotating shafts 114, which is close to each other, is fixedly connected with a crushing plate 113, the crushing plates 113 are used for tearing apart a blockage, a torsion spring 115 for resetting the second rotating shaft 114 is arranged between the second rotating shaft 114 and the mounting groove, and a rope 111 for driving the second rotating shaft 114 to rotate is connected to the second rotating shaft 114 in a winding manner; the rope 111 penetrates through the top of the mounting groove and reaches a cavity formed in the airtight column 3, and a rubber sleeve 116 for sealing is arranged between the rope 111 and the airtight column 3; a fixed pulley block 112 is arranged in the cavity, and the fixed pulley block 112 is used for limiting a rope 111; through holes for the rope 111 to pass through are formed in the connecting rod 10 and the gravity valve 6, and the two through holes are communicated with each other; the rope 111 sequentially penetrates through the airtight column 3, the through hole in the connecting rod 10 and the through hole in the gravity valve 6, the rope 111 reaches the hinged position of the gravity valve 6 and the blowout prevention baffle 7 and is wound on the first rotating shaft 93, and the first rotating shaft 93, the rope 111, the fixed pulley block 112 and the second rotating shaft 114 are matched, so that when the blowout prevention baffle 7 is opened outwards, the first rotating shaft 93 can rotate and drive the crushing plates 113 to be opened away from each other; when food material blocks, the pressure in the pressure cooker is rapidly increased, so that the airtight column 3 is jacked upwards, the air leakage hole 2 is gradually exposed, when the airtight column 3 is jacked upwards, the blowout prevention baffle 7 can move upwards through the connection rod 10 and the cooperation between the gravity valve 6 and the blowout prevention baffle 7, the lower end of the blowout prevention baffle 7 can slide on the limiting ring 8, so that the two blowout prevention baffles 7 are opened and kept away from each other, the blowout prevention baffle 7 drives the first rotating shaft 93 to rotate through the second connecting plate 92, the first rotating shaft 93 winds the rope 111, the rope 111 pulls the second rotating shaft 114, so that the two crushing plates 113 are rotated away from each other, the food material is torn, the size of the food material is reduced, and the phenomenon that the air leakage hole 2 is blocked due to the overlarge size of the food material is avoided.
As an embodiment of the present invention, one end of the crushing plate 113 away from the second rotating shaft 114 is bent downward to form a rake shape; when two crushing boards 113 keep away from each other the rotation, crushing board 113 can rake away the edible material to the rake the same, has improved the effect of tearing, can further reduce the probability that disappointing hole 2 is blockked up.
As an embodiment of the present invention, the lower end of the crushing plate 113 is provided with a chute 117, and a plurality of blades 118 are slidably mounted in the chute 117; the adjacent blades 118 are connected through a rubber rod 119, and the blades 118 are used for cutting up the blockage; when the crushing plate 113 rakes away the food material, the blades 118 are also cutting up the food material, and when the blades 118 cut up the food material, the blades 118 can be subjected to the pressure of the food material to shake left and right, so that the two adjacent blades 118 can cut up the food material again, the effect of cutting up is further improved, and the food material can be discharged through the air leakage hole 2 quickly.
As an embodiment of the present invention, the connecting rod 10 is provided with a spiral thread, and the connecting spiral thread penetrates through the top of the center pillar 1; when the gas-tight column 3 moves upwards, the connecting rod 10 can rotate, so that the crushing plate 113 rotates when shearing food materials, the contact area between the crushing plate 113 and the food materials is increased, the chopping effect is further improved, and the food materials can be discharged through the gas leakage hole 2 more quickly.
As an embodiment of the present invention, the seal 4 is composed of a bearing 41 and a seal ring 42; the bearing 41 is arranged in an annular groove formed in the inner wall of the center pillar 1, a sealing ring 42 is sleeved in the bearing 41, and the sealing ring 42 is extruded on the airtight pillar 3; through the cooperation between bearing 41 and sealing ring 42, make sealing ring 42 can rotate along with airtight post 3 together, reduce the friction between airtight post 3 and sealing ring 42, increase sealing ring 42's life.
As an embodiment of the present invention, an annular air passage 421 is formed inside the sealing ring 42, the annular air passage 421 is communicated with an inflator 422 through a hose, the inflator 422 is disposed on the blowout prevention baffle 7, the inflator 422 is used for inflating the annular air passage 421, and a cross section of the sealing ring 42 is in a trapezoidal shape with a curved side; through pressing inflater 422, can be to the interior air that fills of annular air flue 421 for sealing ring 42 can still can be tight extrusion on airtight post 3 after wearing and tearing, and annular air flue 421 inflation deformation time can promote the close laminating of sealing ring 42's lateral wall on the inside wall of center pillar 1 simultaneously, realizes better sealed effect.
When the pressure cooker works, the pressure in the pressure cooker can jack the airtight column 3 upwards when the air is normally leaked, so that the air leakage hole 2 leaks out of the gap, and the air is sprayed out of the gap; when food materials are blocked, the pressure in the pressure cooker is rapidly increased, so that the airtight column 3 is jacked upwards, the air leakage hole 2 is gradually exposed, when the airtight column 3 is jacked upwards, the blowout-preventing baffle 7 moves upwards through the matching among the connecting rod 10, the gravity valve 6 and the blowout-preventing baffle 7, the lower end of the blowout-preventing baffle 7 slides on the limiting ring 8, so that the two blowout-preventing baffles 7 are opened far away from each other, at the moment, the blowout-preventing baffle 7 drives the first rotating shaft 93 to rotate through the second connecting plate 92, the first rotating shaft 93 winds up the rope 111, the rope 111 pulls the second rotating shaft 114, the two crushing plates 113 rotate far away from each other, the food materials are torn, the size of the food materials is reduced, and the situation that the air leakage hole 2 is blocked due to the overlarge size of; when the crushing plate 113 rakes the food materials, the blades 118 also crush the food materials, and when the blades 118 crush the food materials, the blades are pressed by the food materials to shake left and right, so that the two adjacent blades 118 crush the food materials again, the crushing effect is further improved, and the food materials can be quickly discharged through the air leakage holes 2; when the gas-tight column 3 was when the rebound, because be provided with the spiral line on the connecting rod 10, the rotation can take place for the connecting rod 10 for the crushing plate 113 takes place rotatoryly when cuting edible material, has increased the area of contact between crushing plate 113 and edible material, further improves the effect of shredding, makes edible material can discharge through disappointing hole 2 sooner.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Claims (6)
1. The utility model provides a pressure cooker relief valve, includes center pillar (1) and sets up disappointing hole (2) on center pillar (1), its characterized in that: the device also comprises an airtight column (3), a sealing element (4), an elastic element (5), a gravity valve (6), a blowout prevention baffle (7), a limiting ring (8), a hinge element (9), a connecting rod (10) and a crushing unit (11); the upper end of the airtight column (3) is fixedly connected with one end of a connecting rod (10), the other end of the connecting rod (10) penetrates through the top wall of the middle column (1) in a sliding mode and is fixedly connected with a gravity valve (6), the connecting rod (10) is sleeved with an elastic piece (5), and the elastic piece (5) is used for pushing the airtight column (3) to block the air leakage hole (2); two sides of the gravity valve (6) are symmetrically hinged with two blowout prevention baffles (7) through two hinged parts (9); the anti-spraying baffle (7) is of an arc-shaped structure, and the lower side of the anti-spraying baffle (7) is bent inwards and extends to form a claw-shaped structure; the limiting ring (8) is fixedly sleeved on the outer side of the center pillar (1), the cross section of the limiting ring (8) is of a triangular structure, and the limiting ring (8) is used for being matched with the blowout prevention baffle (7) to enable the blowout prevention baffle (7) to be opened towards two sides; the sealing element (4) is arranged between the airtight column (3) and the inner wall of the central column (1), and the sealing element (4) is used for filling a gap between the airtight column (3) and the central column (1); wherein,
the hinge piece (9) comprises a first connecting plate (91), a second connecting plate (92) and a first rotating shaft (93); the first connecting plate (91) is fixedly connected to the gravity valve (6), and a first rotating shaft (93) is rotatably arranged on the first connecting plate (91); the second connecting plate (92) is fixedly sleeved on the first rotating shaft (93), and the second connecting plate (92) is fixedly connected to the blowout prevention baffle (7);
the crushing unit (11) comprises a rope (111), a fixed pulley block (112), a crushing plate (113), a second rotating shaft (114), a torsion spring (115) and a rubber sleeve (116); the second rotating shaft (114) is rotatably arranged in a mounting groove formed in the lower side of the airtight column (3), one side, close to each other, of each of the two second rotating shafts (114) is fixedly connected with a crushing plate (113), the crushing plates (113) are used for tearing apart a blocking object, a torsion spring (115) used for resetting the second rotating shaft (114) is arranged between the second rotating shaft (114) and the mounting groove, and a rope (111) used for driving the second rotating shaft (114) to rotate is wound on the second rotating shaft (114); the rope (111) penetrates through the top of the mounting groove and reaches a cavity formed in the airtight column (3), and the rope (111) and the airtight column (3) are provided with rubber sleeves (116) for sealing; a fixed pulley block (112) is arranged in the cavity, and the fixed pulley block (112) is used for limiting the rope (111); through holes for the rope (111) to pass through are formed in the connecting rod (10) and the gravity valve (6) and are communicated with each other; the rope (111) penetrates through the through holes in the airtight column (3), the connecting rod (10) and the gravity valve (6) in sequence, the rope (111) reaches the hinged position of the gravity valve (6) and the blowout prevention baffle (7) and is wound on the first rotating shaft (93) in a parallel mode, and the first rotating shaft (93), the rope (111), the fixed pulley block (112) and the second rotating shaft (114) are matched, so that when the blowout prevention baffle (7) is opened outwards, the first rotating shaft (93) can rotate and drive the crushing plates (113) to be opened away from each other.
2. A pressure relief valve for a pressure cooker as defined in claim 1 wherein: one end of the crushing plate (113) far away from the second rotating shaft (114) bends downwards to form a rake shape.
3. A pressure relief valve for a pressure cooker as defined in claim 2 wherein: the lower end of the crushing plate (113) is provided with a sliding groove (117), and a plurality of blades (118) are arranged in the sliding groove (117) in a sliding manner; the adjacent blades (118) are connected through a rubber rod (119), and the blades (118) are used for chopping the blockage.
4. A pressure relief valve for a pressure cooker as defined in claim 1 wherein: the connecting rod (10) is provided with a spiral thread, and the connecting spiral thread penetrates through the top of the middle column (1).
5. A pressure relief valve for a pressure cooker as defined in claim 1 wherein: the sealing element (4) consists of a bearing (41) and a sealing ring (42); the bearing (41) is arranged in an annular groove formed in the inner wall of the center pillar (1), a sealing ring (42) is sleeved in the bearing (41), and the sealing ring (42) is extruded on the airtight pillar (3).
6. A pressure relief valve for a pressure cooker as claimed in claim 5 wherein: annular air flue (421) have been seted up to the inside of sealing ring (42), and annular air flue (421) have inflater (422) through hose intercommunication, and inflates in inflater (422) are used for annular air flue (421), and the section of sealing ring (42) is the trapezoidal form that the side is crooked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320409.4A CN109938596B (en) | 2019-04-19 | 2019-04-19 | Pressure release valve of pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910320409.4A CN109938596B (en) | 2019-04-19 | 2019-04-19 | Pressure release valve of pressure cooker |
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| Publication Number | Publication Date |
|---|---|
| CN109938596A true CN109938596A (en) | 2019-06-28 |
| CN109938596B CN109938596B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910320409.4A Active CN109938596B (en) | 2019-04-19 | 2019-04-19 | Pressure release valve of pressure cooker |
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| CN204158209U (en) * | 2014-09-18 | 2015-02-18 | 廉江市三圣电器有限公司 | With the electric cooker of anti-clogging air bleeding valve |
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2019
- 2019-04-19 CN CN201910320409.4A patent/CN109938596B/en active Active
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|---|---|---|---|---|
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| CN2181236Y (en) * | 1994-02-08 | 1994-11-02 | 汤久生 | Antiplug and explosion-proof safety valve for pressure cooker |
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| KR100833645B1 (en) * | 2006-11-27 | 2008-05-30 | 주식회사 클래드 | Pressure rice pot |
| CN103654444A (en) * | 2012-09-20 | 2014-03-26 | 藻安有限公司 | Air release valve structure of pressure cooker |
| CN204158209U (en) * | 2014-09-18 | 2015-02-18 | 廉江市三圣电器有限公司 | With the electric cooker of anti-clogging air bleeding valve |
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