Pressure sensor with adjustable precision and stroke
By designing an adjustable pressure sensor structure, the problem of fixed accuracy and stroke in traditional pressure sensors has been solved, enabling flexible adjustment of accuracy and stroke, thereby improving detection accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XIAORUI TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional pressure sensors have fixed internal parameters, making it impossible to flexibly adjust accuracy and stroke, resulting in inaccurate detection results, affecting production quality and efficiency, and increasing costs.
A pressure sensor comprising a base, housing, mounting plate, spring, silicone oil layer, detection component, and adjustment component was designed. The accuracy and stroke are adjusted by rotating the adjustment ring and retaining ring, and the signal is converted by a voltage conversion module.
This enables flexible adjustment of the pressure sensor's accuracy and stroke, improving detection accuracy and equipment usability, while reducing production costs and equipment replacement frequency.
Smart Images
Figure CN224262671U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pressure sensor technology, and more specifically, it relates to a pressure sensor with adjustable accuracy and stroke. Background Technology
[0002] In the field of pressure sensors, pressure sensors are frequently used for pressure detection. In industrial production and other applications, to meet different detection needs, the accuracy and stroke of pressure sensors are often required to be adjustable. However, the internal parameters of traditional pressure sensors are usually fixed and cannot be adjusted in terms of accuracy and stroke. As a result, in actual use, due to the difficulty in precise adjustment, the detection results may not be accurate enough when facing different pressure detection tasks. The inability to flexibly adjust the stroke can easily cause deviations in detection data or damage to equipment in some special pressure ranges. This not only affects the quality control in the production process, leading to unstable product quality, but also increases production costs and reduces production efficiency due to frequent equipment replacement or maintenance. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a pressure sensor with adjustable accuracy and stroke, thereby solving the technical problem that in the prior art, the internal parameters of traditional pressure sensors are usually fixed, making it impossible to adjust accuracy and stroke.
[0004] The purpose and function of this utility model of a pressure sensor with adjustable accuracy and stroke are achieved by the following specific technical means:
[0005] An adjustable pressure sensor includes a base and a housing. The base has a mounting hole, and the bottom of the housing is fitted into the mounting hole. A mounting plate is disposed below the housing. Both the mounting plate and the housing have multiple sets of through holes. Springs of different thicknesses are fitted into the multiple sets of through holes on the mounting plate. A silicone oil layer filled with silicone oil is disposed below the mounting plate. A diaphragm is fitted between the mounting plate and the silicone oil layer. A detection component is disposed below the silicone oil layer. The detection component includes a mounting cylinder and a detection diaphragm. The detection diaphragm is disposed between the mounting cylinder and the silicone oil layer. An adjustment component is disposed below the mounting cylinder.
[0006] According to a preferred embodiment, the adjustment component includes a support plate and an adjustment ring. The support plate is disposed below the detection component, and the adjustment ring is installed below the support plate. The adjustment ring is composed of three sets of ring grooves arranged at equal intervals. The ring grooves are made of stainless steel.
[0007] According to a preferred embodiment, the adjusting assembly further includes a retaining ring, which is installed inside the housing and sleeved on the adjusting ring. The retaining ring is rotatably connected to the adjusting ring. Multiple sets of retaining blocks are provided on the inner side of the retaining ring, and the retaining blocks are arranged at equal intervals and are engaged between two sets of ring grooves.
[0008] According to a preferred embodiment, the detection component further includes a voltage conversion module disposed inside the mounting cylinder and electrically connected to the detection film.
[0009] According to a preferred embodiment, both the outer casing and the mounting plate are provided with rotating holes, a rotating shaft is fitted into the rotating holes, a fixing hole is provided at the top of the silicone oil layer, the bottom of the rotating shaft is fitted into the fixing hole, and both the mounting plate and the outer casing are rotatably connected to the rotating shaft.
[0010] According to a preferred embodiment, a plurality of grooves are provided on the lower part of the outer casing, and a plurality of slots are provided on the mounting plate, wherein the grooves are engaged in the slots.
[0011] According to a preferred embodiment, the rotation of the adjusting ring and the retaining ring correspondingly drives the mounting plate and the silicone oil layer to rotate. The silicone oil layer has a detection hole, and the rotation of the through hole is coaxial with the detection hole.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This utility model, through the setting of the spring sheet, allows users to select spring sheets of different thicknesses according to their needs, thereby improving the accuracy and stroke adjustability of the device. After selecting the spring sheet, the user can rotate the mounting plate and silicone oil layer by adjusting the rotation of the ring and the retaining ring, so that the user can make the through hole and the detection hole coaxial, thereby improving the flexibility of the device.
[0014] 2. When using this device, the user can sense pressure changes through the detection membrane in the detection component, enabling the user to obtain pressure information and improving the device's pressure detection capability. Then, through the voltage conversion module, the device can convert the pressure signal sensed by the detection membrane into an electrical signal, facilitating data processing and analysis for the user, and improving the convenience and practicality of the device's data processing. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0017] Figure 3 This is a cross-sectional view of the present invention;
[0018] Figure 4 This is a schematic diagram of the outer shell.
[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0020] 11. Base; 12. Housing; 13. Mounting plate; 14. Through hole; 15. Spring; 16. Silicone oil layer; 17. Diaphragm; 18. Mounting cylinder; 19. Detection membrane; 32. Support plate; 21. Adjusting ring; 22. Ring groove; 23. Snap ring; 24. Snap block; 25. Voltage conversion module; 26. Rotating hole; 27. Rotating shaft; 28. Groove; 29. Snap slot; 31. Detection hole. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example:
[0022] like Figures 1 to 4 As shown, this utility model provides a pressure sensor with adjustable accuracy and stroke, including a base 11 and a housing 12. The base 11 has mounting holes, into which the bottom of the housing 12 can be inserted, thus placing the housing 12 on the base 11. A mounting plate 13 is located below the housing 12, and both the housing 12 and the mounting plate 13 have multiple sets of through holes 14. These through holes 14 play a crucial role in connection and function, providing positions for the installation of subsequent components. Springs 15 of different thicknesses are held in the multiple sets of through holes 14 on the mounting plate 13; the different thicknesses of the springs 15 affect the sensor's responsiveness to pressure. Below the mounting plate 13 is a silicone oil layer 16, filled with silicone oil that can transmit pressure. A diaphragm 17 is held between the mounting plate 13 and the silicone oil layer 16; the diaphragm 17 can deform under pressure, thus affecting the pressure transmission of the silicone oil. A detection component is installed below the silicone oil layer 16. The detection component includes a mounting cylinder 18 and a detection diaphragm 19. The detection diaphragm 19 can be an RP-C7.6-ST-LF2 diaphragm pressure detector. The detection diaphragm 19 is located between the mounting cylinder 18 and the silicone oil layer 16. It can sense the pressure changes transmitted by the silicone oil and convert them into corresponding signals. Below the mounting cylinder 18, there is also an adjustment component, which can rotate springs 15 of different thicknesses.
[0023] like Figures 2 to 3As shown, the adjustment assembly includes a support plate 32 and an adjustment ring 21. The support plate 32 is located below the detection assembly and serves to support the adjustment ring 21. The adjustment ring 21 is installed below the support plate 32 and consists of three sets of annular grooves 22 arranged at equal intervals. The annular grooves 22 are made of stainless steel and have a certain strength and elasticity. In addition, the adjustment assembly also includes a retaining ring 23, which is installed inside the housing 12 and fits onto the adjustment ring 21. The retaining ring 23 and the adjustment ring 21 are rotatably connected. Inside the retaining ring 23, there are multiple sets of retaining blocks 24, which are arranged at equal intervals and are engaged between two sets of annular grooves 22. When the adjustment ring 21 is rotated, the retaining blocks 24 move between the annular grooves 22, thereby realizing the adjustment function.
[0024] In addition to the mounting cylinder 18 and the detection diaphragm 19, the detection assembly also includes a voltage conversion module 25. The voltage conversion module 25 can be a linear voltage conversion module. It is located inside the mounting cylinder 18 and is electrically connected to the detection diaphragm 19. The detection diaphragm 19 senses the signal generated by pressure changes and converts it into a suitable voltage signal through the voltage conversion module 25 for subsequent processing and reading of the pressure data.
[0025] like Figures 2 to 4 As shown, both the outer casing 12 and the mounting plate 13 have rotating holes 26, and a rotating shaft 27 is fitted into the rotating holes 26. A fixing hole is formed at the top of the silicone oil layer 16, and the bottom of the rotating shaft 27 is fitted into this fixing hole. In this way, both the mounting plate 13 and the outer casing 12 can be rotatably connected to the rotating shaft 27. This rotatable connection allows the mounting plate 13 and the outer casing 12 to rotate relative to each other, providing a means to adjust the accuracy and stroke of the sensor.
[0026] Multiple sets of grooves 28 are provided on the lower part of the outer casing 12, and multiple sets of slots 29 are provided on the mounting plate 13, allowing the grooves 28 to be engaged into the slots 29. This connection method further enhances the connection stability between the outer casing 12 and the mounting plate 13, while also limiting their relative position to a certain extent, so that the mounting plate 13 rotates when the outer casing 12 rotates.
[0027] The rotation of the adjusting ring 21 and the retaining ring 23 will correspondingly drive the mounting plate 13 and the silicone oil layer 16 to rotate. The silicone oil layer 16 has a detection hole 31. When the mounting plate 13 and the silicone oil layer 16 rotate, the through hole 14 can rotate to a position coaxial with the detection hole 31. Through this rotational adjustment, the path and method of pressure transmission can be changed, thereby achieving adjustment of the sensor's accuracy and stroke.
[0028] The specific usage and function of this embodiment are as follows:
[0029] When using this pressure sensor, external pressure first acts on the diaphragm 17, causing the diaphragm 17 to deform and compress the silicone oil in the silicone oil layer 16. The silicone oil transmits the pressure to the sensing diaphragm 19, which senses the pressure change and generates a corresponding signal. This signal is transmitted to the voltage conversion module 25 inside the mounting cylinder 18, which converts the signal into a voltage signal to acquire pressure data.
[0030] If the sensor's accuracy or stroke needs adjustment, the housing 12 can be rotated. When the retaining ring 23 rotates, the retaining block 24 inside the retaining ring 23 moves within the annular groove 22, causing the mounting plate 13 and the silicone oil layer 16 to rotate. As they rotate, the relative positions of the through hole 14 on the mounting plate 13 and the detection hole 31 on the silicone oil layer 16 change, and the pressure transmission also changes accordingly. For example, springs 15 of different thicknesses interact differently with the silicone oil layer 16 during rotation, affecting the pressure transmission effect, thereby enabling adjustment of the sensor's accuracy and stroke to meet the pressure detection requirements in different scenarios.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.
Claims
1. A pressure sensor with adjustable accuracy and stroke, comprising a base (11) and a housing (12), characterized in that: The base (11) has an installation hole, the bottom of the outer shell (12) is fitted into the installation hole, and an installation plate (13) is provided below the outer shell (12). Both the installation plate (13) and the outer shell (12) have multiple sets of through holes (14). The multiple sets of through holes (14) on the installation plate (13) are fitted with spring pieces (15) of different thicknesses. A silicone oil layer (16) is provided below the installation plate (13). The silicone oil layer (16) is filled with silicone oil. A diaphragm (17) is fitted between the installation plate (13) and the silicone oil layer (16). A detection component is provided below the silicone oil layer (16). The detection component includes an installation cylinder (18) and a detection film (19). The detection film (19) is located between the installation cylinder (18) and the silicone oil layer (16). An adjustment component is provided below the installation cylinder (18).
2. The precision and travel adjustable pressure sensor of claim 1, wherein: The adjustment component includes a support plate (32) and an adjustment ring (21). The support plate (32) is located below the detection component. The adjustment ring (21) is installed below the support plate (32). The adjustment ring (21) is composed of three sets of ring grooves (22) arranged at equal intervals. The ring grooves (22) are made of stainless steel.
3. A precision and travel adjustable pressure sensor according to claim 2, wherein: The adjustment assembly also includes a retaining ring (23), which is installed inside the housing (12). The retaining ring (23) is sleeved on the adjustment ring (21) and is rotatably connected to the adjustment ring (21). Multiple sets of retaining blocks (24) are provided inside the retaining ring (23). The retaining blocks (24) are arranged at equal intervals and are engaged between two sets of ring grooves (22).
4. The precision and travel adjustable pressure sensor of claim 1, wherein: The detection component also includes a voltage conversion module (25), which is disposed inside the mounting cylinder (18) and is electrically connected to the detection film (19).
5. A precision and travel adjustable pressure sensor according to claim 4, wherein: Both the outer shell (12) and the mounting plate (13) are provided with rotating holes (26), and a rotating shaft (27) is installed in the rotating holes (26). The top of the silicone oil layer (16) is provided with a fixing hole, and the bottom of the rotating shaft (27) is installed in the fixing hole. Both the mounting plate (13) and the outer shell (12) are rotatably connected to the rotating shaft (27).
6. The precision and travel adjustable pressure sensor of claim 1, wherein: The outer shell (12) has multiple sets of grooves (28) below it, and the mounting plate (13) has multiple sets of slots (29) on it. The grooves (28) are engaged in the slots (29).
7. The precision and travel adjustable pressure sensor of claim 3, wherein: The rotation of the adjusting ring (21) and the retaining ring (23) correspondingly drives the mounting plate (13) and the silicone oil layer (16) to rotate. The silicone oil layer (16) is provided with a detection hole (31), and the rotation of the through hole (14) is coaxial with the detection hole (31).