A switching mechanism and a multi-channel pressure scanning valve

Abstract

The utility model relates to technical fields especially is a kind of switching mechanism and multi-channel pressure scanning valve, including, bearing assembly, the bearing assembly includes bearing shell and the side wall of being located in the inside of bearing shell;Switching assembly includes the top cover being located in the lower side wall and the through plate being located in the upper top cover. The bearing assembly further includes the gasket being located in the inside of side wall, the end of the gasket is equipped with fixed groove to side wall, the top of gasket is equipped with bottom cover The inside of bottom cover is equipped with embedding slot, the gasket is located in the embedding slot The switching assembly further includes the airbag seat being located in the upper top cover. The utility model has the beneficial effect that switching assembly is ventilated to airbag, in the case where airbag is not supplied with gas, the default mode of device is measurement mode, equipment can measure the gas pressure discharged by switching assembly, so as to improve detection efficiency by the rapid switching of different modes.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a switching mechanism and a multi-channel pressure scanning valve. Background Technology

[0002] Pressure scanning valves are intelligent sensing devices that enable real-time measurement of multiple pressure signals and are widely used in wind tunnel testing and propulsion trajectory testing. During the development stages of various aircraft, multi-channel pressure scanning valves can be used to accurately acquire and verify the aerodynamic distribution and pressure of various engine components during flight. Furthermore, because existing multi-channel pressure scanning valves are encapsulated with multiple pressure sensors, they not only provide numerous measurement channels but also avoid the damage to the aerodynamic and thermal structure of the object being tested caused by installing multiple separate pressure sensors.

[0003] Pressure scanning valves are key equipment in fields such as wind tunnel testing, aero-engine testing, and automotive aerodynamic analysis. They are used to simultaneously collect pressure data from dozens to hundreds of measuring points. They need to be able to flexibly switch between measurement, calibration, and purging modes within a limited space. However, during the switching process, after the equipment switches to calibration or purging mode, manual intervention is required to return it to measurement mode. If the operator forgets to reset, it will lead to errors in subsequent data acquisition. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a switching mechanism, comprising a bearing assembly, the bearing assembly including a bearing housing and a sidewall disposed inside the bearing housing; and,

[0006] The switching assembly includes a top cover located below the side wall and a through plate located above the top cover.

[0007] As a preferred embodiment of the switching mechanism of this utility model, the bearing component further includes a gasket disposed on the inner side of the side wall, the gasket having a fixing groove at its end relative to the side wall, and a bottom cover being disposed above the gasket.

[0008] As a preferred embodiment of the switching mechanism of this utility model, the bottom cover has an embedding groove on its inner side, and the gasket is disposed in the embedding groove.

[0009] As a preferred embodiment of the switching mechanism of this utility model, the switching component further includes an airbag seat disposed above the top cover, one end of the airbag seat having an air inlet hole and one end of the airbag seat having an airbag.

[0010] As a preferred embodiment of the switching mechanism of this utility model, the inner side of the side wall is provided with a side slide rail cover, one end of the side slide rail cover is provided with a limiting block, a slider is provided between the limiting blocks, the two ends of the slider are provided with limiting grooves, and the limiting block is provided in the limiting groove.

[0011] As a preferred embodiment of the switching mechanism of this utility model, one end of the slider is provided with an elastic element, the elastic element array is arranged at one end of the slider, one end of the elastic element is provided with a mounting seat, the inner side of the mounting seat is provided with a mounting groove, and the elastic element is disposed inside the mounting groove.

[0012] In a preferred embodiment of the switching mechanism of this utility model, a lower cover is provided above the slider, and a channel opening is provided inside the lower cover, with the channel opening array arranged on the end face of the lower cover.

[0013] The beneficial effects of the switching mechanism of this utility model are as follows: when the switching component switches modes, the switching component ventilates the airbag. When the airbag is not supplied with air, the default mode of the device is the measurement mode. The device can measure the gas pressure discharged by the switching component, thereby improving the detection efficiency through the rapid switching of different modes.

[0014] Another objective of this invention is to provide a multi-channel pressure scanning valve, which aims to solve the problem.

[0015] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a multi-channel pressure scanning valve, which includes a switching mechanism; and a detection component, including an upper cover plate disposed at the end of the bearing housing.

[0016] As a preferred embodiment of the multi-channel pressure scanning valve of this utility model, the detection component further includes a first row of holes opened on the inner side of the upper cover plate and a second row of holes disposed on the inner side of the upper cover plate, wherein the first row of holes and the second row of holes are arranged in an array on the inner side of the upper cover plate.

[0017] As a preferred embodiment of the multi-channel pressure scanning valve of this utility model, the upper cover plate has a purge port on its inner side, a calibration port above the purge port, an atmospheric reference port on its inner side, and a mode switching port on its side of the atmospheric reference port.

[0018] The beneficial effects of the multi-channel pressure scanning valve of this utility model are as follows: after the mode switching port inflates the airbag, the slider reaches the calibration and purging modes under the action of the airbag. The calibration air source pipeline and the sensor side pipeline are connected through the intermediate pipeline b to realize the calibration function. The measured air source pipeline and the reverse purging pipeline are connected through the intermediate pipeline c to realize the purging function. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a diagram showing the overall components of this utility model.

[0021] Figure 2 This is a diagram illustrating the switching component in this utility model.

[0022] Figure 3 This is a diagram illustrating the detection component of this utility model.

[0023] Figure 4 This is a top view of the detection component in this utility model. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] Reference Figure 1This is the first embodiment of the present invention, which provides a switching mechanism, including a support assembly 1, the support assembly 1 including a support housing 11 and a side wall 12 disposed inside the support housing 11; and,

[0029] The switching assembly 2 includes a top cover 21 located below the side wall 12 and a through plate 211 located above the top cover 21. Significant technical advantages are achieved through optimized structural cooperation between the supporting assembly 1 and the switching assembly 2. The integrated design of the supporting housing 11 and the side wall 12 provides stable support for the overall structure, while the double-fixing structure of the gasket 121, which is connected to the end of the side wall 12 via a fixing groove and embedded in the bottom cover's embedding groove, greatly improves the structural stability of the assembly connection, effectively preventing component displacement caused by vibration or gas pressure impact during equipment operation, and providing a stable physical basis for gas pressure measurement.

[0030] The support assembly 1 also includes a gasket 121 disposed inside the side wall 12. The gasket 121 has a fixing groove at its end relative to the side wall 12, and a bottom cover 13 is disposed above the gasket 121. The precise positioning of the gasket 121 by the bottom cover 13 embedded in the groove further ensures the sealing performance between the gasket 121 and the side wall 12 and the bottom cover 13, reducing the risk of gas leakage and ensuring the accuracy of gas pressure data in measurement mode. The default mode is set to measurement mode, allowing the device to quickly enter working condition without additional operation, simplifying the initial operation process. This is especially suitable for scenarios requiring high-frequency measurements, improving the device's response speed and efficiency.

[0031] An embedding groove is provided on the inner side of the bottom cover 13, and the gasket 121 is disposed in the embedding groove.

[0032] The ventilation linkage design between the switching component 2 and the airbag 23 lays the foundation for subsequent mode switching. It stably maintains the measurement mode in the absence of air supply, ensuring the functional reliability in the non-working state and avoiding measurement deviations caused by accidental triggering of other modes.

[0033] Usage process: When the switching component 2 switches modes, the switching component 2 ventilates the airbag 23. When the airbag 23 is not supplied with air, the default mode of the device is the measurement mode, and the device can measure the gas pressure discharged by the switching component 2.

[0034] Example 2

[0035] Reference Figures 1-4This is the second embodiment of the present invention. Unlike the previous embodiment, it also includes an airbag seat 22 located above the top cover 21. One end of the airbag seat 22 has an air inlet, and the other end has an airbag 23. Through the cooperative structure of the airbag seat 22 and the airbag 23, precise control of gas intake is achieved. The opening of the air inlet provides a stable channel for supplying air to the airbag 23, improving the reliability of the power source for mode switching.

[0036] A side slide rail cover 24 is provided on the inner side of the side wall 12. A limiting block 241 is provided at one end of the side slide rail cover 24, and a slider 25 is provided between the limiting blocks 241. Limiting grooves 251 are opened at both ends of the slider 25, and the limiting blocks 241 are located in the limiting grooves 251. The fitting design of the limiting blocks 241 of the side slide rail cover 24 and the limiting grooves 251 of the slider 25 forms a high-precision sliding guide structure, which effectively restricts the sliding trajectory of the slider 25, ensures the linearity and stability of the slider 25's movement, and avoids mode switching failure caused by deviation. The array arrangement of elastic elements 26 at both ends of the slider 25 not only enhances the slider 25's reset capability, but also balances the force on the slider 25 through the evenly distributed elastic force, reducing the jamming phenomenon during the sliding process and improving the smoothness of mode switching.

[0037] One end of the slider 25 is provided with an elastic element 26, and the elastic elements 26 are arranged in an array at one end of the slider 25. A mounting base 27 is provided at one end of the elastic element 26, and a mounting groove 271 is formed on the inner side of the mounting base 27. The elastic element 26 is located inside the mounting groove 271. A lower cover 28 is provided above the slider 25, and a channel opening 281 is formed inside the lower cover 28. The channel openings 281 are arranged in an array on the end face of the lower cover 28. The array design of the channel openings 281 in the lower cover 28 increases the gas flow area, reduces gas resistance, improves the gas exchange efficiency inside the device, and ensures stable transmission of gas pressure during measurement and switching. Furthermore, the synergistic effect of the elastic element 26 and the airbag 23 enables the slider 25 to achieve precise displacement under the balance of power and reset force, significantly improving the response speed and control accuracy of mode switching, and providing a reliable mechanical foundation for the subsequent realization of multi-mode functions.

[0038] Usage: The slider 25 slides along the outside of the limiting block 241 through the combined action of the elastic element 26 and the airbag 23. The device vents air to the airbag 23 through the mode switching port. The slider 25 is equipped with an intermediate pipeline. The upper cover plate 31 is equipped with a first row of holes 311, a second row of holes 312, a purge port 32, a calibration port 33, an atmospheric reference port 34, and a mode switching port 35. The slider 25 is in the measurement mode by default. The gas source pipeline to be measured and the pressure measurement pipeline of the sensor are connected through the intermediate pipeline a, so that the mode can be changed without disassembling the device.

[0039] Example 3

[0040] Reference Figures 1-4 This is the third embodiment of the present invention, which further provides a multi-channel pressure scanning valve. It includes a detection component 3, which includes an upper cover plate 31 disposed at the end of the supporting housing 11.

[0041] The detection component 3 also includes a first row of holes 311 and a second row of holes 312 located inside the upper cover plate 31. The first row of holes 311 and the second row of holes 312 are arranged in an array inside the upper cover plate 31. The mode switching mechanism of the slider 25 under the action of the airbag 23 and the elastic element 26 can complete the conversion of measurement, calibration and purging modes without disassembling the equipment. This completely solves the cumbersome problem of disassembly required for mode switching of traditional equipment, greatly shortens the mode switching time, reduces the complexity of operation, and is especially suitable for rapid on-site debugging and maintenance scenarios.

[0042] A purge port 32 is provided on the inner side of the upper cover plate 31. A calibration port 33 is provided above the purge port 32 on the upper cover plate 31. An atmospheric reference port 34 is provided on the inner side of the upper cover plate 31. A mode switching port 35 is provided on the side of the atmospheric reference port 34 on the upper cover plate 31. By clearly defining the mode switching logic and functional division, the overall performance of the equipment is comprehensively improved. The independent design of multiple interfaces such as the first row of holes 311, the second row of holes 312, the purge port 32, and the calibration port 33 on the upper cover plate 31 ensures that the functional channels do not interfere with each other, avoids cross-contamination of gas flow in different modes, and significantly improves the specialization and reliability of the functions.

[0043] The purge port 32 is designed to remove impurities from the channel by purging the pipeline in reverse, which effectively reduces the impact of impurity accumulation on measurement accuracy after long-term use and extends the maintenance cycle of the equipment. The calibration port 33 provides a convenient channel for periodic calibration, ensuring the long-term measurement accuracy of the sensor pressure measurement pipeline and guaranteeing the reliability of the equipment data.

[0044] When air is supplied to the air supply port of airbag 23, the device switches to calibration and purging mode. In this mode, the calibration port 33 can be used to calibrate the first row of holes 311 and the second row of holes 312, and the purging port 32 can be used to purge impurities in the channel. When air is not supplied to the air supply port of airbag 23, the device switches back to measurement mode.

[0045] Usage process: After the mode switching port 35 inflates the airbag 23, the slider 25 reaches the calibration and purging modes under the action of the airbag 23. The calibration air source pipeline and the sensor side pipeline are connected through the intermediate pipeline b to realize the calibration function. The test air source pipeline and the reverse purging pipeline are connected through the intermediate pipeline c to realize the purging function.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A switching mechanism, characterized in that: include, A support assembly (1), the support assembly (1) including a support housing (11) and a sidewall (12) disposed inside the support housing (11); and, The switching assembly (2) includes a top cover (21) located below the side wall (12) and a through plate (211) located above the top cover (21).

2. The switching mechanism as described in claim 1, characterized in that: The bearing assembly (1) also includes a gasket (121) disposed on the inner side of the side wall (12), the gasket (121) having a fixing groove at the end of the side wall (12), and a bottom cover (13) disposed above the gasket (121).

3. The switching mechanism as described in claim 2, characterized in that: The bottom cover (13) has an embedding groove on its inner side, and the gasket (121) is disposed in the embedding groove.

4. The switching mechanism as described in claim 3, characterized in that: The switching component (2) also includes an airbag seat (22) located above the top cover (21), with an air inlet at one end of the airbag seat (22) and an airbag (23) at the other end.

5. The switching mechanism as described in claim 4, characterized in that: The inner side of the side wall (12) is provided with a side slide rail cover (24), one end of the side slide rail cover (24) is provided with a limiting block (241), a slider (25) is provided between the limiting blocks (241), the two ends of the slider (25) are provided with limiting grooves (251), and the limiting blocks (241) are located in the limiting grooves (251).

6. The switching mechanism as described in claim 5, characterized in that: One end of the slider (25) is provided with an elastic element (26), and the elastic elements (26) are arranged in an array at one end of the slider (25). One end of the elastic element (26) is provided with a mounting seat (27), and the mounting seat (27) has an installation groove (271) on its inner side. The elastic element (26) is located inside the installation groove (271).

7. The switching mechanism as described in claim 6, characterized in that: The slider (25) is provided with a lower cover (28) above it. The lower cover (28) has a channel opening (281) inside it. The channel openings (281) are arranged in an array on the end face of the lower cover (28).

8. A multi-channel pressure scanning valve, characterized in that: Includes the switching mechanism as described in any one of claims 1 to 7; and a detection component (3) including an upper cover plate (31) disposed at the end of the bearing housing (11).

9. The multi-channel pressure scanning valve as described in claim 8, characterized in that: The detection component (3) further includes a first row of holes (311) and a second row of holes (312) located inside the upper cover plate (31), wherein the first row of holes (311) and the second row of holes (312) are arranged in an array inside the upper cover plate (31).

10. The multi-channel pressure scanning valve as described in claim 9, characterized in that: The upper cover plate (31) has a purge port (32) on its inner side, a calibration port (33) above the purge port (32) on the upper cover plate (31), an atmospheric reference port (34) on its inner side, and a mode switching port (35) on one side of the atmospheric reference port (34) on the upper cover plate (31).

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