Pressure relief device of pressure cooker

Abstract

The utility model relates to the technical field of pressure cookers, and discloses a pressure relief device of a pressure cooker, which comprises a pressure relief device, the pressure relief device comprises a valve body, a mounting cover, an adjusting rod, an exhaust hole, a circular arc groove I, a circular arc, a circular arc groove II, an arc-shaped strip, an elastic rod, an adjusting spring and an adjusting plate, the middle end of the bottom of the valve body is provided with a mounting port, and the bottom of the adjusting rod is provided with the mounting cover. An exhaust hole is formed in the outer wall of the valve body, a circular arc is arranged at the top of the first circular groove, a second arc groove is formed in the top of the circular arc, an adjusting spring is arranged on the outer wall of the elastic rod, an arc-shaped strip is arranged on the outer wall of the adjusting rod, and the adjusting plate is installed at the bottom of the elastic rod. According to the pressure relief device of the pressure cooker, when the internal pressure of the pressure cooker is increased and reaches a threshold value, gas pushes an adjusting rod to move upwards, an adjusting plate moves towards the top of a second arc groove along with an elastic rod, an air guiding hole is attached to an exhaust hole, and the gas in the adjusting rod is guided to the outside of the pressure cooker through the exhaust hole; and the pressure in the pressure cooker can be conveniently reduced.

Description

Technical Field

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

[0002] Pressure cookers are commonly used cooking utensils in modern household kitchens. However, the pressure cookers currently used still have safety problems. For example, when the gas pressure in the pressure cooker is too high and the pressure is not released in time, an explosion may occur, which endangers people's lives and property safety. Therefore, it is particularly important to ensure the safe use of pressure cookers. For this reason, engineering and technical personnel have installed pressure relief devices such as safety valves on the pressure cooker. When the pressure in the pressure cooker exceeds the normal rated pressure, if the pressure in the pot continues to increase, the pressure relief device will be activated to release gas from the pot to reduce the pressure in the pot to ensure safety.

[0003] However, the existing pressure relief devices can generally only exhaust gas in stages or in a small capacity, which still cannot effectively relieve pressure. Moreover, most of the current pressure relief devices of pressure cookers will automatically reset themselves after the pressure in the pressure cooker has abnormal working pressure relief, as long as the pressure in the pot drops, and the pressure cooker can work again. This leaves a huge safety hazard for users in future use. Therefore, it is necessary to improve the existing technology to meet actual needs. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a pressure relief device for a pressure cooker, which has the advantage that when the pressure inside the pressure cooker increases and reaches a threshold, the gas pushes the adjusting rod to move upward, the adjusting plate moves to the top of the second arc groove along with the elastic rod, the air inlet hole and the exhaust hole are fitted together, and the gas in the adjusting rod is guided to the outside of the pressure cooker through the exhaust hole, so as to reduce the pressure inside the pressure cooker conveniently, thereby solving the above-mentioned technical problems.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solutions: a pressure relief device for a pressure cooker, comprising a pressure relief device, the pressure relief device comprising a valve body, a mounting cover, an adjusting rod, an exhaust hole, a first circular arc groove, a circular arc, a second circular arc groove, an arc strip, an elastic rod, an adjusting spring and an adjusting plate;

[0008] An installation opening is provided at the middle end of the bottom of the valve body, a installation cover is provided at the bottom of the adjusting rod, an exhaust hole is provided on the outer wall of the valve body, a circular arc is provided on the top of the arc groove one, an arc groove two is provided on the top of the circular arc, an adjustment spring is provided on the outer wall of the elastic rod, an arc strip is provided on the outer wall of the adjusting rod, and the adjustment plate is installed at the bottom of the elastic rod.

[0009] Preferably, the bottom of the adjusting rod is provided with an external thread, the middle end of the top of the mounting cover is provided with an internal thread, the mounting cover is threadedly mounted on the bottom of the adjusting rod, and vents are penetrated through the bottom of the adjusting rod and the bottom of the mounting cover.

[0010] Through the above technical solution, the adjusting rod is inserted into the top cover of the pressure cooker, and the rotating mounting cover is used to limit the adjusting rod, so that the pressure relief device can be installed conveniently.

[0011] Preferably, a circular arc groove 1 is opened at the middle ends of both sides of the installation opening, and an arc bar is fixedly installed at the middle ends of both sides of the adjustment rod, and the circular arc groove 1 is slidably connected to the arc bar.

[0012] Through the above technical solution, the arc strip is aligned with the arc groove one, and the adjustment rod is pushed to adjust the position of the arc strip, so that the arc strip can be pushed to the top of the arc groove one and extended to the top of the circular arc.

[0013] Preferably, a circular arc is opened at the middle end of the inner wall of the valve body, the bottom of the circular arc fits with the top of the circular arc groove, the circular arc has the same height as the arc strip, and the circular arc is slidably connected to the arc strip.

[0014] Through the above technical solution, the arc strip extends to the top of the circular arc as the adjusting rod moves to the top of the arc groove. The adjusting rod is rotated to adjust the position of the arc strip, which is convenient for limiting the arc strip and sealing the adjusting rod.

[0015] Preferably, arc groove 2 is provided at the middle end of the front inner wall and the middle end of the back inner wall of the valve body, the arc strip is slidably connected to the arc groove 2, exhaust holes are provided at the middle end of the front and the middle end of the back of the arc groove 2, and an air duct hole is penetrated at the joint between the side of the arc strip and the adjusting rod.

[0016] Through the above technical solution, the arc bar rotates with the circular arc, pushing the arc bar into the second arc groove, so that the air inlet hole and the exhaust hole fit together, guiding the gas in the adjusting rod to the outside of the pressure cooker through the exhaust hole, reducing the gas inside the pressure cooker and reducing the internal pressure of the pressure cooker.

[0017] Preferably, an elastic rod is fixedly mounted on the inner wall of the top of the second circular arc groove, an adjustment spring is sleeved on the outer wall of the elastic rod, an adjustment plate is fixedly mounted on the bottom of the elastic rod, and the adjustment plate is slidably connected to the second circular arc groove.

[0018] Through the above technical solution, the internal pressure of the pressure cooker increases. When it reaches the threshold, the gas pushes the adjusting rod upward, and the adjusting plate moves to the top of the second arc groove along with the elastic rod. The air inlet and the exhaust hole fit together, and the gas in the adjusting rod is guided to the outside of the pressure cooker through the exhaust hole, so as to reduce the pressure inside the pressure cooker.

[0019] Compared with the prior art, the utility model provides a pressure relief device for a pressure cooker, which has the following features:

[0020] Beneficial effects:

[0021] 1. The utility model increases the pressure inside the pressure cooker. When the pressure reaches a threshold, the gas pushes the adjusting rod upward, and the adjusting plate moves toward the top of the second arc groove along with the elastic rod. The air inlet and the exhaust hole fit together, and the gas in the adjusting rod is guided to the outside of the pressure cooker through the exhaust hole, so as to reduce the pressure inside the pressure cooker.

[0022] 2. The utility model extends to the top of the circular arc by moving the arc strip to the top of the circular arc groove along with the adjusting rod, and the adjusting rod is rotated to adjust the position of the arc strip, so as to limit the arc strip and seal the adjusting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the structural pressure relief device of the utility model;

[0024] Figure 2 It is a side cross-sectional schematic diagram of the structural pressure relief device of the utility model;

[0025] Figure 3 This is a front view cross-sectional schematic diagram of the structural pressure relief device of the utility model;

[0026] Figure 4 It is a top cross-sectional schematic diagram of the structural pressure relief device of the utility model.

[0027] Among them: 1. pressure relief device; 2. valve body; 3. installation cover; 4. adjusting rod; 5. exhaust hole; 6. arc groove 1; 7. circular arc; 8. arc groove 2; 9. arc strip; 10. elastic rod; 11. adjusting spring; 12. adjusting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 A pressure relief device for a pressure cooker, comprising a pressure relief device 1, wherein the pressure relief device 1 comprises a valve body 2, a mounting cover 3, an adjusting rod 4, an exhaust hole 5, an arc groove 1 6, a circular arc 7, an arc groove 2 8, an arc strip 9, an elastic rod 10, an adjusting spring 11 and an adjusting plate 12;

[0030] An installation opening is provided at the middle end of the bottom of the valve body 2, a installation cover 3 is provided at the bottom of the adjusting rod 4, an exhaust hole 5 is provided on the outer wall of the valve body 2, a circular arc 7 is provided on the top of the circular arc groove 1 6, an arc groove 2 8 is provided on the top of the circular arc 7, an adjusting spring 11 is provided on the outer wall of the elastic rod 10, an arc strip 9 is provided on the outer wall of the adjusting rod 4, and an adjusting plate 12 is installed at the bottom of the elastic rod 10.

[0031] Specifically, an external thread is provided at the bottom of the adjusting rod 4, an internal thread is provided at the middle end of the top of the mounting cover 3, the mounting cover 3 is threadedly mounted on the bottom of the adjusting rod 4, and vents are penetrated through the bottom of the adjusting rod 4 and the bottom of the mounting cover 3. The advantage is that the adjusting rod 4 is inserted into the top cover of the pressure cooker, and the mounting cover 3 is rotated to limit the adjusting rod 4, so that the pressure relief device 1 is installed conveniently.

[0032] Specifically, arc grooves 6 are opened in the middle ends of both sides of the installation opening, and arc bars 9 are fixedly installed in the middle ends of both sides of the adjusting rod 4. The arc grooves 6 are slidably connected with the arc bars 9. The advantage is that the arc bars 9 are aligned with the arc grooves 6, and the adjusting rods 4 are pushed to adjust the position of the arc bars 9, so that the arc bars 9 can be pushed to the top of the arc grooves 6 and extended to the top of the circular arc 7.

[0033] Specifically, a circular arc 7 is opened at the middle end of the inner wall of the valve body 2, the bottom of the circular arc 7 is fitted with the top of the circular arc groove 6, the circular arc 7 and the arc strip 9 have the same height, and the circular arc 7 and the arc strip 9 are slidably connected. The advantage is that the arc strip 9 extends to the top of the circular arc 7 as the adjusting rod 4 moves to the top of the circular arc groove 6, and the adjusting rod 4 is rotated to adjust the position of the arc strip 9, which is convenient for limiting the arc strip 9 and sealing the adjusting rod 4.

[0034] Specifically, arc groove 28 is provided at the middle end of the front inner wall and the middle end of the back inner wall of the valve body 2, the arc strip 9 is slidably connected to the arc groove 28, exhaust holes 5 are provided at the middle end of the front and the middle end of the back of the arc groove 28, and an air duct hole is penetrated at the joint between the side of the arc strip 9 and the adjusting rod 4. The advantage is that the arc strip 9 rotates with the circular arc 7, pushing the arc strip 9 into the arc groove 28, the air duct hole and the exhaust hole 5 are fitted together, and the gas in the adjusting rod 4 is guided to the outside of the pressure cooker through the exhaust hole 5, thereby reducing the gas inside the pressure cooker and reducing the internal pressure of the pressure cooker.

[0035] Specifically, an elastic rod 10 is fixedly installed on the inner wall of the top of the arc groove 8, an adjusting spring 11 is sleeved on the outer wall of the elastic rod 10, an adjusting plate 12 is fixedly installed on the bottom of the elastic rod 10, and the adjusting plate 12 is slidably connected to the arc groove 8. The advantage is that when the pressure inside the pressure cooker increases and reaches a threshold, the gas pushes the adjusting rod 4 to move upward, and the adjusting plate 12 moves toward the top of the arc groove 8 with the elastic rod 10, the air inlet and the exhaust hole 5 are fitted together, and the gas in the adjusting rod 4 is guided to the outside of the pressure cooker through the exhaust hole 5, which is convenient for reducing the pressure inside the pressure cooker.

[0036] When in use, the adjusting rod 4 is inserted into the top cover of the pressure cooker, the rotating mounting cover 3 limits the adjusting rod 4, the arc strip 9 is aligned with the arc groove 1 6, and the adjusting rod 4 is pushed to adjust the position of the arc strip 9, so that the arc strip 9 is conveniently pushed to the top of the arc groove 1 6 and extended to the top of the circular arc 7. The arc strip 9 rotates with the circular arc 7, pushing the arc strip 9 to the arc groove 2 8, and the air inlet and the exhaust hole 5 are fitted together, guiding the gas in the adjusting rod 4 to the outside of the pressure cooker through the exhaust hole 5, reducing the gas inside the pressure cooker, reducing the internal pressure of the pressure cooker, and completing the use process of the pressure relief device 1.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure relief device for a pressure cooker, comprising a pressure relief device (1), characterized in that: The pressure relief device (1) comprises a valve body (2), a mounting cover (3), an adjusting rod (4), an exhaust hole (5), a first circular arc groove (6), a circular arc (7), a second circular arc groove (8), an arc strip (9), an elastic rod (10), an adjusting spring (11) and an adjusting plate (12); The valve body (2) is provided with a mounting opening at the middle end of the bottom, the adjusting rod (4) is provided with a mounting cover (3) at the bottom, the valve body (2) is provided with an exhaust hole (5) on the outer wall, the arc groove 1 (6) is provided with a circular arc (7) at the top, the arc groove 2 (8) is provided at the top of the circular arc (7), the elastic rod (10) is provided with an adjusting spring (11) on the outer wall, the adjusting rod (4) is provided with an arc strip (9), and the adjusting plate (12) is installed at the bottom of the elastic rod (10).

2. The pressure relief device for a pressure cooker according to claim 1, characterized in that: The bottom of the adjusting rod (4) is provided with an external thread, the middle of the top of the mounting cover (3) is provided with an internal thread, the mounting cover (3) is threadedly mounted on the bottom of the adjusting rod (4), and both the bottom of the adjusting rod (4) and the bottom of the mounting cover (3) are penetrated by ventilation holes.

3. The pressure relief device of a pressure cooker according to claim 1, characterized in that: A circular arc groove (6) is provided at the middle ends of both sides of the installation opening, and an arc strip (9) is fixedly installed at the middle ends of both sides of the adjustment rod (4), and the circular arc groove (6) is slidably connected to the arc strip (9).

4. The pressure relief device for a pressure cooker according to claim 1, characterized in that: A circular arc (7) is provided at the middle end of the inner wall of the valve body (2), the bottom of the circular arc (7) is in contact with the top of the circular arc groove (6), the circular arc (7) and the arc strip (9) are at the same height, and the circular arc (7) and the arc strip (9) are slidably connected.

5. The pressure relief device for a pressure cooker according to claim 1, characterized in that: The middle ends of the front inner wall and the back inner wall of the valve body (2) are both provided with arc groove No. 2 (8), the arc strip (9) is slidably connected to the arc groove No. 2 (8), the middle ends of the front inner wall and the back inner wall of the valve body (2) are both provided with exhaust holes (5), and the side of the arc strip (9) and the regulating rod (4) are connected at the joint thereof.

6. The pressure relief device for a pressure cooker according to claim 1, characterized in that: An elastic rod (10) is fixedly mounted on the inner wall of the top of the second circular arc groove (8), an adjustment spring (11) is sleeved on the outer wall of the elastic rod (10), an adjustment plate (12) is fixedly mounted on the bottom of the elastic rod (10), and the adjustment plate (12) is slidably connected to the second circular arc groove (8).

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