Pressure cooker pressure-limiting valve quality detection device

Abstract

The utility model discloses a pressure cooker pressure-limiting valve quality detection device, which relates to the field of pressure cooker quality detection, and comprises a bottom plate, an auxiliary component arranged on the top of the bottom plate, a detection component arranged on the outer side of the bottom plate, a supporting plate arranged on the auxiliary component and provided with a simulation cooker body, a cooker cover and a pressure-limiting valve, and a pressure sensor arranged on the side wall of the supporting plate, by simulating the internal pressure of the pressure cooker body and accurately simulating the internal high pressure condition of the pressure cooker body, the plurality of pressure sensors can comprehensively detect the internal pressure, accurately judge whether the pressure cooker has a sealing or valve problem or not when the pressure cooker works, continuously inject gas, and accurately detect the internal pressure of the pressure cooker body. The air speed detector is combined to detect the air flow speed in the sleeve, whether the pressure-limiting valve can balance the pressure or not can be accurately judged, the device achieves efficient and accurate detection of the quality of the pressure-limiting valve and the sealing pressure maintaining performance of the pressure cooker, and the detection accuracy and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure cooker quality testing technology, specifically a pressure cooker pressure limiting valve quality testing device. Background Technology

[0002] During the use of pressure cookers, the pressure relief valve is a key component that ensures the safe operation of the pressure cooker, and its quality is of paramount importance. Traditional methods for testing the quality of pressure relief valves in pressure cookers have many drawbacks. On the one hand, it is difficult to accurately simulate the complex high-pressure environment inside the pressure cooker during actual use, resulting in inaccurate test results on whether the pressure relief valve can effectively balance the pressure under normal working pressure.

[0003] On the other hand, existing testing methods are not comprehensive enough to detect the overall sealing and pressure-holding performance of pressure cookers, and cannot detect potential problems with the seals or valves of pressure cookers in a timely manner. This allows pressure cookers with safety hazards to enter the market, posing potential safety risks to users.

[0004] To address this issue, the present invention provides a pressure cooker pressure relief valve quality testing device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a quality testing device for pressure cooker pressure limiting valves, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure cooker pressure relief valve quality detection device, comprising a base plate, an auxiliary component on the top of the base plate, a detection component on the outer side of the auxiliary component, the auxiliary component comprising a support plate, a simulated pot body fixedly mounted on the top of the support plate, a pot lid snapped onto the top of the simulated pot body, a pressure relief valve fixedly mounted on the top of the pot lid, a pressure sensor fixedly mounted on the side wall of the support plate, and a top plate comprising a sleeve fixedly mounted inside the top plate, a wind speed detector fixedly mounted inside the sleeve, the sleeve being fitted onto the outer side of the pressure relief valve.

[0007] Preferably, a one-way valve is fixedly installed at the bottom of the interior of the simulated pot, and a connecting pipe is fixedly installed at the bottom of the one-way valve. The connecting pipe passes through the support plate and the interior of the simulated pot, and the connecting direction of the one-way valve is from the interior of the connecting pipe to the interior of the simulated pot.

[0008] Preferably, a support column is fixedly installed at the bottom of the support plate, the support column is fixedly installed at the top of the base plate, and a solenoid valve is fixedly installed at the bottom of the support plate, the inlet of the solenoid valve being connected to the interior of the simulated pot.

[0009] Preferably, the top plate is located above the pot lid, and a sealing rubber ring is fixedly installed at the bottom of the sleeve, with the sealing rubber ring fitting against the top of the pot lid.

[0010] Preferably, a vertical rod is inserted into the inside of the support plate, and a screw is fixedly installed at the top of the vertical rod. The screw passes through the inside of the top plate, and a nut is screwed onto the outside of the screw, with the nut fitting against the top of the top plate.

[0011] Preferably, a magnet is fixedly installed at the bottom of the vertical rod, the base plate is made of stainless steel, the magnet is attracted to the top of the base plate, and a rubber block is fixedly installed at the bottom of the support plate. The rubber block is located outside the corresponding vertical rod and above the corresponding magnet.

[0012] Beneficial effects

[0013] This invention provides a quality testing device for pressure cooker pressure relief valves. Compared with existing technologies, it has the following advantages:

[0014] 1. This pressure cooker pressure relief valve quality testing device, through the one-way valve and connecting pipe in the auxiliary components connected to an external air compressor, can rapidly increase the simulated internal pressure of the pressure cooker, accurately simulating the internal high pressure situation during pressure cooker use. Utilizing multiple pressure sensors to comprehensively detect the simulated internal pressure of the pressure cooker, it can not only accurately determine whether there are sealing or valve problems when the pressure cooker is adjusted to the working pressure, but also accurately determine whether the pressure relief valve can balance the pressure within a certain range of the pressure cooker's working pressure by continuously injecting gas and combining it with the detection of airflow velocity in the sleeve by an anemometer. This achieves efficient and accurate testing of the pressure relief valve quality and the pressure-holding performance of the pressure cooker, greatly improving the accuracy and efficiency of the testing.

[0015] 2. This pressure cooker pressure relief valve quality detection device can quickly open when the pressure is abnormal via a solenoid valve. In conjunction with the safety valve above the lid, it can promptly release internal gas and reduce pressure. Even if the above devices fail, when the lid pops open, the top plate can act as a stop. The top plate moves the vertical rod upward, causing the magnet to be pulled off the bottom plate, absorbing some of the lifting force. Subsequently, the magnet hits the rubber block for further cushioning, confining the popped lid between the simulated pot body and the top plate. This effectively prevents the popped lid from causing harm to personnel and the surrounding environment, greatly improving the safety of the detection process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the external structure of this utility model;

[0018] Figure 2 This is a three-dimensional sectional view of the internal structure of this utility model;

[0019] Figure 3 This is a three-dimensional view of the bottom structure of this utility model;

[0020] Figure 4 This is a three-dimensional view of the internal structure of this utility model.

[0021] In the diagram: 1. Base plate; 2. Detection component; 21. Top plate; 22. Sleeve; 23. Anemometer; 24. Vertical rod; 25. Screw; 26. Nut; 27. Magnet block; 28. Rubber block; 3. Auxiliary component; 31. Support plate; 32. Support column; 33. Simulated pot body; 34. Pressure sensor; 35. One-way valve; 36. Connecting pipe; 37. Solenoid valve; 4. Pot lid; 5. Pressure limiting valve. Detailed Implementation

[0022] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0023] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1 to 4This application provides a pressure cooker pressure relief valve quality detection device, including a base plate 1, an auxiliary component 3 on the top of the base plate 1, a detection component 2 on the outside of the auxiliary component 3, the auxiliary component 3 including a support plate 31, a simulated pot body 33 fixedly installed on the top of the support plate 31, a pot lid 4 snapped onto the top of the simulated pot body 33, a pressure relief valve 5 fixedly installed on the top of the pot lid 4, a pressure sensor 34 fixedly installed on the side wall of the support plate 31, and a top plate 21 including a sleeve 22 fixedly installed inside the top plate 21, a wind speed detector 23 fixedly installed inside the sleeve 22, and the sleeve 22 sleeved on the outside of the pressure relief valve 5.

[0025] A one-way valve 35 is fixedly installed at the bottom of the simulated pot body 33. A connecting pipe 36 is fixedly installed at the bottom of the one-way valve 35. The connecting pipe 36 passes through the support plate 31 and the interior of the simulated pot body 33. The connection direction of the one-way valve 35 is from the interior of the connecting pipe 36 to the interior of the simulated pot body 33. A support column 32 is fixedly installed at the bottom of the support plate 31. The support column 32 is fixedly installed at the top of the base plate 1. A solenoid valve 37 is fixedly installed at the bottom of the support plate 31. The inlet of the solenoid valve 37 is connected to the interior of the simulated pot body 33.

[0026] In this embodiment, the lid 4 is installed on the simulated pot body 33, and the connecting pipe 36 is connected to an external air compressor. Gas is introduced into the connecting pipe 36 through the air compressor and into the simulated pot body 33 through the one-way valve 35. This can rapidly increase the internal pressure of the simulated pot body 33, thereby simulating the internal high pressure of a pressure cooker during use. Multiple pressure sensors 34 work together to detect the internal pressure of the simulated pot body 33. After the gas introduced into the simulated pot body 33 stops flowing, the one-way valve 35 ensures that the gas will not be discharged, so that the internal pressure of the simulated pot body 33 can always maintain a fixed pressure value. By adjusting the internal pressure value of the simulated pot body 33 to the pressure value when the pressure cooker is working normally, if the working pressure cannot be reached during adjustment, it indicates that there is a problem with the pressure cooker's seal or the valve at the top. After a period of time, the pressure sensor 34 detects the pressure change. If the pressure decreases at this time, it indicates that there is a problem with the seal of the lid 4 or the valve at the top, thereby realizing the detection of the sealing and pressure-holding performance of various parts of the pressure cooker.

[0027] Reference Figures 1 to 4 In one aspect of this embodiment, the top plate 21 is located above the pot lid 4, and a sealing rubber ring is fixedly installed at the bottom of the sleeve 22, with the sealing rubber ring fitting against the top of the pot lid 4.

[0028] A vertical rod 24 is inserted into the inside of the support plate 31. A screw 25 is fixedly installed at the top of the vertical rod 24, penetrating the interior of the top plate 21. A nut 26 is screwed onto the outside of the screw 25, fitting against the top of the top plate 21. A magnet 27 is fixedly installed at the bottom of the vertical rod 24. The base plate 1 is made of stainless steel, and the magnet 27 is attached to the top of the base plate 1. A rubber block 28 is fixedly installed at the bottom of the support plate 31, located outside the corresponding vertical rod 24 and above the corresponding magnet 27.

[0029] In this embodiment, after the sealing and pressure-holding performance of each part of the pressure cooker is satisfactory, the quality of the pressure limiting valve 5 is tested. The top plate 21 is installed on the lid 4. During installation, the top plate 21 is installed on the vertical rod 24 by screws 25 and nuts 26. After installation, the sleeve 22 will be sleeved on the outside of the pressure limiting valve 5. Gas is continuously injected into the simulated pot body 33, and the pressure is detected by the pressure sensor 34. When the working pressure of the pressure cooker is reached, pressure is continued to be injected into the interior, and the internal pressure is detected by the pressure sensor 34. The airflow speed inside the sleeve 22 is detected by the anemometer 23. When the anemometer 23 detects the airflow and the pressure sensor 34 fluctuates within a certain range of the working pressure of the pressure cooker, it indicates that the pressure limiting valve 5 can effectively balance the internal pressure of the pressure cooker. This indicates that the pressure limiting valve 5 is qualified in terms of manufacturing and installation. Otherwise, it is unqualified. After the test is completed, the lid 4 is removed and a new lid 4 is installed for the next test, thus achieving the purpose of convenient and effective testing of the pressure limiting valve 5.

[0030] Furthermore, if the pressure relief valve 5 malfunctions during testing, the internal pressure of the simulated pot 33 will continue to rise. At this time, by opening the solenoid valve 37 and turning off the air compressor, the internal gas can be quickly discharged, reducing the internal pressure of the simulated pot 33. The pressure can also be quickly discharged through the automatic safety valve above the lid 4. When all the above devices malfunction, the lid 4 is at risk of popping open. At this time, the popped lid 4 will first touch the top plate 21 above, and the top plate 21 will be pushed upward. The top plate 21 will drive the vertical rod 24 to move upward. At this time, the upward force will pull the magnet 27 off the bottom plate 1. When it is pulled off, some of the lifting force will be consumed. Then the magnet 27 will quickly hit the rubber block 28, further buffering the force. And the restriction of the top plate 21 can limit the popped lid 4 between the simulated pot 33 and the top plate 21, thereby effectively preventing the popped lid 4 from causing damage.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] Working principle: The working principle of this pressure cooker testing device is as follows: First, the lid 4 is installed on the simulated pot body 33. An external air compressor is connected to the simulated pot body 33 through the connecting pipe 36 and the one-way valve 35 to simulate the high pressure inside the pressure cooker. The pressure is detected by the pressure sensor 34, thereby testing the sealing and pressure-holding performance of each part of the pressure cooker. After the sealing and pressure-holding performance is not a problem, the top plate 21 is installed, and air is continuously injected into the simulated pot body 33. The pressure and airflow speed are detected by the pressure sensor 34 and the anemometer 23, thereby testing the quality of the pressure limiting valve 5. If the pressure limiting valve 5 malfunctions during the test and the pressure continues to rise, the pressure can be released by opening the solenoid valve 37, turning off the air compressor and the safety valve. If there is still a risk of the lid 4 breaking open, the protective structure composed of the top plate 21, the vertical rod 24, the magnet block 27 and the rubber block 28 can prevent the lid 4 from breaking open and causing damage.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure cooker pressure relief valve quality testing device, comprising a base plate (1), characterized in that: An auxiliary component (3) is provided on the top of the base plate (1), and a detection component (2) is provided on the outside of the auxiliary component (3). The auxiliary component (3) includes a support plate (31), a simulated pot body (33) is fixedly installed on the top of the support plate (31), a pot lid (4) is snapped onto the top of the simulated pot body (33), a pressure limiting valve (5) is fixedly installed on the top of the pot lid (4), and a pressure sensor (34) is fixedly installed on the side wall of the support plate (31). The detection component (2) includes a top plate (21), a sleeve (22) is fixedly installed inside the top plate (21), a wind speed detector (23) is fixedly installed inside the sleeve (22), and the sleeve (22) is sleeved on the outside of the pressure limiting valve (5).

2. The pressure cooker pressure relief valve quality testing device according to claim 1, characterized in that: A one-way valve (35) is fixedly installed at the bottom of the interior of the simulated pot body (33). A connecting pipe (36) is fixedly installed at the bottom of the one-way valve (35). The connecting pipe (36) passes through the support plate (31) and the interior of the simulated pot body (33). The connecting direction of the one-way valve (35) is from the interior of the connecting pipe (36) to the interior of the simulated pot body (33).

3. The pressure cooker pressure relief valve quality testing device according to claim 2, characterized in that: A support column (32) is fixedly installed at the bottom of the support plate (31), and the support column (32) is fixedly installed at the top of the base plate (1). A solenoid valve (37) is fixedly installed at the bottom of the support plate (31), and the inlet of the solenoid valve (37) is connected to the interior of the simulated pot body (33).

4. The pressure cooker pressure relief valve quality testing device according to claim 1, characterized in that: The top plate (21) is located above the pot lid (4), and a sealing rubber ring is fixedly installed at the bottom of the sleeve (22), which is attached to the top of the pot lid (4).

5. The pressure cooker pressure relief valve quality testing device according to claim 1, characterized in that: A vertical rod (24) is inserted into the inside of the support plate (31). A screw (25) is fixedly installed on the top of the vertical rod (24). The screw (25) passes through the inside of the top plate (21). A nut (26) is screwed onto the outside of the screw (25). The nut (26) fits against the top of the top plate (21).

6. The pressure cooker pressure relief valve quality testing device according to claim 5, characterized in that: A magnet (27) is fixedly installed at the bottom of the vertical rod (24). The base plate (1) is made of stainless steel. The magnet (27) is attached to the top of the base plate (1). A rubber block (28) is fixedly installed at the bottom of the support plate (31). The rubber block (28) is located outside the corresponding vertical rod (24) and above the corresponding magnet (27).

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