A mounting device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker.
The design of the mounting bracket solves the problem of fixing the wireless temperature and pressure recorder in the electric pressure cooker test, achieving precise positioning and efficient testing. It is adaptable to various pot types, meets national standards, and does not affect the performance of the pot body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHEARI BEIJING CERTIFICATION & TESTING
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-26
AI Technical Summary
In the energy efficiency test of electric pressure cookers, the wireless temperature and pressure recorder cannot be fixed, resulting in large errors and low efficiency in the test results. The thermocouple wires are easily broken, affecting the sealing performance of the electric pressure cooker.
A mounting bracket was designed, including adjustable length legs, a position indicator circle, a vertical limit rod, a horizontal drag ring, and an adjustment buckle, to fix the wireless temperature and pressure recorder, ensuring that it is near the central axis of the pot body. It is adaptable to different water levels and pot types and is made of 304 stainless steel to avoid affecting heating performance and sealing.
It achieves precise positioning of the wireless temperature and pressure recorder, adapts to different pot sizes, improves testing accuracy and efficiency, avoids thermocouple interference, complies with national standards, and does not affect the normal use of the pot.
Smart Images
Figure CN224285995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchenware testing technology, and in particular to a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker. Background Technology
[0002] Electric pressure cookers are an upgraded replacement for traditional pressure cookers and rice cookers. They combine the advantages of both, employing new technologies such as elastic pressure control, dynamic sealing, external rotating lid, and adjustable displacement electric switch, thus eliminating the safety hazards that have plagued consumers for many years with ordinary pressure cookers.
[0003] An electric pressure cooker mainly consists of a lid, sealing ring, pressure relief valve, inner pot, heating element, and temperature control switch. It utilizes the physical property that water's boiling point is affected by air pressure (the higher the air pressure, the higher the boiling point). It heats water in a sealed environment, creating a high-temperature, high-pressure environment that allows food to cook faster and more thoroughly.
[0004] Currently, the following problems exist when testing the energy efficiency of electric pressure cookers.
[0005] 1. When using a thin-wire thermocouple to record the water temperature in the inner pot, problems such as the thermocouple being broken, affecting the sealing performance of the electric pressure cooker, and large errors in the test data may occur.
[0006] 2. When using a wireless temperature and pressure recorder to measure the water temperature inside the pot, the recorder needs to be suspended in the water at a certain position. Since there is no fixed device to assist in the test, testers usually use different methods to suspend the recorder in the water for products of different volumes. This not only affects the test results but also makes it impossible to guarantee the consistency of the test, resulting in a large test error.
[0007] 3. During the testing process, since there is no fixed device to assist in the testing, it is usually necessary to design temporary solutions for different product specifications, which not only increases the workload but also reduces work efficiency.
[0008] Therefore, this utility model provides a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker. Utility Model Content
[0009] To overcome the shortcomings of the existing technology, this utility model provides a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker. This device solves the problems existing in the prior art, such as the inability to fix the position of the wireless temperature and pressure recorder in the inner pot, large error in test results when using other wired thermocouples, low test efficiency, easy breakage of thermocouple wires, and easy impact on the sealing performance of the electric pressure cooker.
[0010] To achieve the above objectives, the technical solution of this utility model is as follows: A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker, characterized in that it includes a fixing frame, the fixing frame including an adjustable length support leg, a position indicator circle, a vertical limiting rod, a horizontal drag ring, and an adjusting buckle, the adjustable length support leg being disposed on the position indicator circle for fixing and supporting the fixing frame and contacting the bottom surface of the inner pot, the vertical limiting rod being detachably connected to the adjustable length support leg, one end of the adjusting buckle being fixedly connected to the horizontal drag ring, and the other end being slidably sleeved on the vertical limiting rod for adjusting and locking the position of the horizontal drag ring in the vertical direction.
[0011] Preferably, the adjustable length support includes three L-shaped support legs and three rotary adjusters. The three rotary adjusters are arranged in an equilateral triangle on the position indication circle, and the three rotary adjusters are located at the three vertices of the equilateral triangle. The horizontal section of each L-shaped support leg is threadedly connected to the rotary adjuster to adapt to inner pots of different diameters.
[0012] Preferably, the center of the position indicator circle coincides with the intersection of the three rotary adjusters.
[0013] Preferably, the bottom of the vertical limiting rod is provided with a position adjuster for adjusting the installation position of the vertical limiting rod on the horizontal section of the L-shaped support leg, so as to ensure the stability of the overall structural center of gravity of the fixing frame.
[0014] Preferably, the surface of the vertical limiting rod is provided with an axially extending indicator scale.
[0015] Preferably, the vertical limiting rod is also fitted with a freely sliding float-type liquid level pointer.
[0016] Preferably, the float-type liquid level pointer has a ring structure, and the float-type liquid level pointer is provided with a pointer arm for pointing to the indicator scale, for displaying the liquid level height in the pot.
[0017] Preferably, the projection of the center of the horizontal drag ring in the horizontal direction falls on the L-shaped support.
[0018] Preferably, the projection of the center of the horizontal drag ring in the horizontal direction falls between the center of the position indication circle and the lowest position of the vertical limiting rod.
[0019] Preferably, the fixing frame is made of 304 stainless steel.
[0020] This utility model provides a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker, which has the following advantages: 1. Precise positioning: Guided installation by a position indicator circle ensures that the wireless temperature and pressure recorder is always located near the central axis of the pot, meeting the national standard requirements for the position of the temperature measurement point. 2. Adjustable height: Through the coordinated action of the horizontal drag ring, adjusting buckle, and vertical limiting rod, the height of the wireless temperature and pressure recorder suspended in the water can be adjusted to adapt to testing needs under different water level conditions. 3. Strong versatility: Through the coordinated action of the L-shaped support and the rotary adjuster, it can be adapted to various inner pot sizes from 18cm to 30cm, and is widely applicable to various electric pressure cooker models. 4. Non-invasive design: No need to disassemble the pot body or damage the sealing structure, it does not affect normal cooking functions, making it particularly suitable for use by third-party testing institutions. 5. Does not affect heating performance: The L-shaped support has a small contact area with the bottom of the pot and is made of low thermal conductivity stainless steel, avoiding the formation of "thermal bridges". 6. Does not interfere with the heat conduction process inside the pot: The mounting bracket is made of 304 stainless steel, which has high temperature resistance, corrosion resistance, and oxidation resistance, and has a low thermal conductivity, so it will not significantly interfere with the heat conduction process of the water inside the pot. 7. The mounting bracket provided by this utility model meets the location requirements for the thermal efficiency and heat preservation energy consumption measuring device specified in GB 39177-2020 "Energy Efficiency Limits and Energy Efficiency Grades for Electric Pressure Cookers" standard. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a wireless temperature and pressure recorder fixing device for testing the energy efficiency of an electric pressure cooker according to this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of a wireless temperature and pressure recorder fixing device for testing the energy efficiency of an electric pressure cooker according to this utility model.
[0023] Attached reference numerals: 1. Fixing bracket; 2. L-shaped support leg; 3. Position indicator circle; 4. Vertical limit rod; 5. Horizontal drag ring; 6. Adjusting buckle; 7. Rotation adjuster; 8. Position adjuster. Detailed Implementation
[0024] The embodiments of this application will now be described in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Furthermore, the following embodiments and features can be combined with each other unless otherwise specified. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] Reference Appendix Figure 1-2 This embodiment provides a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker, including a fixing frame 1. The fixing frame 1 includes an adjustable length support leg, a position indicator circle 3, a vertical limiting rod 4, a horizontal drag ring 5, and an adjusting buckle 6. The adjustable length support leg is disposed on the position indicator circle 3 and is used to fix and support the fixing frame 1 and contact the bottom surface of the inner pot. The vertical limiting rod 4 is detachably connected to the adjustable length support leg. One end of the adjusting buckle 6 is fixedly connected to the horizontal drag ring 5, and the other end is slidably sleeved on the vertical limiting rod 4, used to adjust and lock the position of the horizontal drag ring 5 in the vertical direction.
[0027] As a further embodiment of this utility model, one end of the adjusting buckle 6 is fixed to the connecting end of the horizontal drag ring 5, and the other end is slidably sleeved on the vertical limiting rod 4, which is used to adjust and lock the height position of the horizontal drag ring 5 in the vertical direction; the adjusting buckle 6 is preferably a clamp structure, which can be released or locked by turning the screw, so as to achieve tool-free quick adjustment.
[0028] As a further solution of this utility model, when testing the thermal efficiency of an electric pressure cooker according to the GB 39177-2020 standard "Energy Efficiency Limits and Energy Efficiency Grades of Electric Pressure Cookers", the fixing frame 1 is placed in the center of the inner pot, and then the wireless temperature and pressure recorder is placed on the horizontal drag ring 5, with the temperature sensing point located in the cylindrical area where the position indication circle 3 is located. The height of the horizontal drag ring 5 is adjusted by adjusting the buckle 6, thereby adjusting the distance between the temperature sensing point of the wireless temperature and pressure recorder and the water surface until the standard requirements are met.
[0029] As a further embodiment of this utility model, the adjustable length support includes three L-shaped support legs 2 and three rotary adjusters 7. The three rotary adjusters 7 are arranged in an equilateral triangle on the position indication circle 3, and the three rotary adjusters 7 are arranged at the three vertices of the equilateral triangle. The horizontal section of each L-shaped support leg 2 is threadedly connected to the rotary adjuster 7 to adapt to inner pots of different diameters.
[0030] As a further improvement of this utility model, the number of L-shaped legs 2 is three. The three L-shaped legs 2 are arranged at the three vertices of an equilateral triangle. During testing, the fixing frame 1 needs to be placed in the inner pot. Since the triangle has stability, this application designs three L-shaped legs 2 to improve the stability of the fixing frame 1.
[0031] As a further improvement of this invention, the coordinated action of the position indicator circle 3, the L-shaped support leg 2, and the rotary adjuster 7 enables the mounting bracket 1 to have a certain load-bearing capacity in the vertical direction, sufficient to withstand the force impact caused by the wireless temperature and pressure recorder and water on the mounting bracket 1. Simultaneously, a rotary adjuster 7 is provided at the end of the horizontal section of each L-shaped support leg 2, which can be rotated to change the extension length of the L-shaped support leg 2, thereby adapting to inner pots of different diameters (e.g., common sizes such as 18cm, 22cm, and 26cm).
[0032] As a further improvement of this utility model, the center of the position indicator circle 3 coincides with the intersection of the three rotary adjusters 7. Through this structural design, the fixing frame 1 can be made symmetrical and is not easily damaged.
[0033] As a further improvement of this utility model, the vertical limiting rod 4 has a cylindrical structure, which facilitates the adjustment of the height of the horizontal drag ring 5.
[0034] As a further improvement of this invention, a position adjuster 8 is provided at the bottom of the vertical limiting rod 4 to adjust the installation position of the vertical limiting rod 4 on the horizontal section of the L-shaped support 2, so as to ensure the stability of the overall structure center of gravity of the fixing frame 1. Simultaneously, when the position of the temperature sensing probe of the wireless temperature and pressure recorder changes, the position of the vertical limiting rod 4 on the horizontal section of the L-shaped support 2 can be adjusted to ensure that the temperature sensing probe is in the standard required position.
[0035] As a further embodiment of this utility model, the surface of the vertical limiting rod 4 is provided with an axially extending indicator scale, which can be laser-engraved and used as a reference for liquid level reading.
[0036] As a further improvement of this utility model, a freely sliding float-type liquid level pointer is also fitted on the vertical limiting rod 4; the float-type liquid level pointer has a ring structure and is provided with a pointer arm for pointing to the indicator scale, for displaying the liquid level height in the pot.
[0037] As a further improvement of this utility model, the float-type liquid level pointer involved in this application has a ring structure (similar to a swimming ring), with a central hole and sleeved on the vertical limiting rod 4. It can slide freely up and down along the vertical limiting rod 4, and its outer circumference is provided with a pointer arm pointing to the scale, which is used to directly read the current liquid level height.
[0038] As a further improvement of this utility model, by setting a float-type liquid level pointer to directly indicate the water level height, the error of manual estimation can be avoided, thereby improving the measurement accuracy. At the same time, through the coordinated action of the horizontal drag ring 5, the adjusting buckle 6, the indicating scale and the float-type liquid level pointer, the synchronous adjustment of the "wireless temperature and pressure recorder height-liquid level indication" can be achieved, ensuring that the temperature measuring point is always in the correct position.
[0039] As a further improvement of this utility model, when in use, an appropriate amount of water is first added to the inner pot, and the float-type liquid level pointer rises to the current position with the liquid level; the operator can observe the scale indicated by the pointer arm and the reading of the float-type liquid level pointer to know the current water level height; then the wireless temperature and pressure recorder is suspended below the horizontal drag ring 5, and its temperature probe is adjusted to "1 / 2 water depth" according to the standard requirements (for example, if the water depth is 100mm, the probe is at a height of 50mm).
[0040] As a further improvement of this utility model, the projection of the center of the horizontal drag ring 5 in the horizontal direction falls on the L-shaped support leg 2, and the projection should be located between the center of the position indication circle 3 and the lowest position of the limit rod to avoid off-center loading, which can ensure the installation position accuracy of the wireless temperature and pressure recorder and improve work efficiency.
[0041] As a further improvement of this utility model, the fixing frame 1 is made of 304 stainless steel. The fixing frame 1 is made entirely of 304 stainless steel, which has the characteristics of high temperature resistance (≥150℃), corrosion resistance, and oxidation resistance, and has a low thermal conductivity, so it will not significantly interfere with the heat conduction process of water in the pot.
[0042] As a further improvement of this utility model, the extension length of the three L-shaped support legs 2 is adjusted according to the inner diameter of the inner pot of the electric pressure cooker being tested. The installation position of the vertical limiting rod 4 on the horizontal section of the L-shaped support legs 2 is adjusted. Then, the height of the horizontal drag ring 5 is adjusted according to the height of the water level in the pot. Then, the fixing bracket 1 is placed in the inner pot, and the wireless temperature and pressure recorder is suspended below the horizontal drag ring 5. The immersion depth in the water is set by sliding the adjusting buckle 6 up and down (usually adjusted to 1 / 2 of the water depth, in accordance with the requirements of GB 39177-2020). After locking the adjusting buckle 6, the test can begin.
[0043] In summary, the mounting bracket 1 provided in this application solves the problem of how to suspend the wireless temperature and pressure recorder in water, while also providing adjustable suspension height for the recorder, thus improving the accuracy of energy efficiency testing for electric pressure cookers. Furthermore, it enhances work efficiency and avoids problems associated with using thin-wire thermocouples, such as larger errors, lower testing efficiency, easy breakage of thermocouple wires, and compromised sealing of the electric pressure cooker. In addition, this product is made of 304 stainless steel, which is not only heat-resistant and corrosion-resistant but also reusable, saving costs.
[0044] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.
Claims
1. A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker, characterized in that, The device includes a fixed frame, which comprises an adjustable length support leg, a position indicator circle, a vertical limiting rod, a horizontal drag ring, and an adjusting buckle. The adjustable length support leg is disposed on the position indicator circle and is used to fix and support the fixed frame and contact the bottom surface of the inner pot. The vertical limiting rod is detachably connected to the adjustable length support leg. One end of the adjusting buckle is fixedly connected to the horizontal drag ring, and the other end is slidably sleeved on the vertical limiting rod to adjust and lock the position of the horizontal drag ring in the vertical direction.
2. The fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 1, characterized in that, The adjustable length support includes three L-shaped support legs and three rotary adjusters. The three rotary adjusters are arranged in an equilateral triangle on the position indication circle, and the three rotary adjusters are located at the three vertices of the equilateral triangle. The horizontal section of each L-shaped support leg is threadedly connected to the rotary adjuster to adapt to inner pots of different diameters.
3. The fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 2, characterized in that, The center of the position indicator circle coincides with the intersection of the three rotary adjusters.
4. The fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 2, characterized in that, The bottom of the vertical limiting rod is equipped with a position adjuster, which is used to adjust the installation position of the vertical limiting rod on the horizontal section of the L-shaped support leg, so as to ensure the stability of the overall structure center of gravity of the fixing frame.
5. A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 4, characterized in that, The surface of the vertical limiting rod is provided with an axially extending indicator scale.
6. The fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 1, characterized in that, The vertical limiting rod is also fitted with a freely sliding float-type liquid level pointer.
7. A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 6, characterized in that, The float-type liquid level pointer has a ring structure and is equipped with a pointer arm for pointing to the indicator scale, which is used to display the liquid level height in the pot.
8. A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 2, characterized in that, The projection of the center of the horizontal drag ring in the horizontal direction falls on the L-shaped support.
9. A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 1, characterized in that, The projection of the center of the horizontal drag ring in the horizontal direction falls between the center of the position indication circle and the lowest position of the vertical limit rod.
10. A fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker according to claim 1, characterized in that, The mounting bracket is made of 304 stainless steel.