CN113340474B - Pressure sensor protection mechanism - Google Patents
Pressure sensor protection mechanism Download PDFInfo
- Publication number
- CN113340474B CN113340474B CN202110725201.8A CN202110725201A CN113340474B CN 113340474 B CN113340474 B CN 113340474B CN 202110725201 A CN202110725201 A CN 202110725201A CN 113340474 B CN113340474 B CN 113340474B
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- China
- Prior art keywords
- pressure sensor
- pressure
- pressing block
- head
- spring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
本发明涉及压力传感器保护机构，压头导向柱安装于底座上，压头导向柱设有用于纳置压力传感器、传感器压块、弹簧预压块和压头的腔室，压力传感器置于压头导向柱腔室的底部，压力传感器压块位于压力传感器上，压力传感器压块包含下端的大径部以及与其衔接的上端小径部，弹簧和弹簧预压块套装于压力传感器压块的上端小径部上，弹簧预压块将弹簧预压的同时可在传感器压块上滑动，压头装入压头导向柱的腔室中，与弹簧预压块抵接，压头的侧部开设有限位槽，与限位槽相对的压头导向柱部位开设有可供压头限位销穿过的通孔，压头限位销与限位槽间隙配合。压机压力实时传递给压力传感器，实时监控压力；异常时，由压头限位销卡住压头，保护压力传感器。
The present invention relates to a pressure sensor protection mechanism, wherein a pressure head guide column is installed on a base, and the pressure head guide column is provided with a chamber for accommodating a pressure sensor, a sensor pressure block, a spring pre-pressure block and a pressure head, the pressure sensor is placed at the bottom of the pressure head guide column chamber, the pressure sensor pressure block is located on the pressure sensor, the pressure sensor pressure block comprises a large diameter portion at the lower end and a small diameter portion at the upper end connected thereto, the spring and the spring pre-pressure block are sleeved on the small diameter portion at the upper end of the pressure sensor pressure block, the spring pre-pressure block can slide on the sensor pressure block while pre-pressing the spring, the pressure head is installed in the chamber of the pressure head guide column, and abuts against the spring pre-pressure block, a limiting groove is provided on the side of the pressure head, and a through hole for a pressure head limiting pin to pass through is provided at the pressure head guide column portion opposite to the limiting groove, and the pressure head limiting pin and the limiting groove are in clearance. The pressure of the press is transmitted to the pressure sensor in real time, and the pressure is monitored in real time; when abnormal, the pressure head is clamped by the pressure head limiting pin to protect the pressure sensor.
Description
Technical Field
The invention relates to a pressure sensor protection mechanism.
Background
At present, in the automobile EGR product press-mounting process, when equipment is abnormal, the pressure of a press exceeds the range of a pressure sensor, and the pressure sensor is crushed.
Therefore, there is a need to design a mechanical protection mechanism for the pressure sensor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a pressure sensor protection mechanism.
The aim of the invention is achieved by the following technical scheme:
The pressure sensor protection mechanism is characterized by comprising a base, a pressure head guide post, a sensor pressing block, a spring and a pressure head, wherein the pressure head guide post is arranged on the base, the pressure head guide post is provided with a cavity for accommodating the pressure sensor, the sensor pressing block, the spring pressing block and the pressure head, the pressure sensor is arranged at the bottom of the cavity of the pressure head guide post, the pressure sensor pressing block is positioned on the pressure sensor, the pressure sensor pressing block comprises a large-diameter part at the lower end and an upper small-diameter part connected with the large-diameter part, the spring and the spring pressing block are sequentially sleeved on the upper small-diameter part of the pressure sensor pressing block, the spring pressing block can slide on the sensor pressing block while pressing the spring, the pressure head is arranged in the cavity of the pressure head guide post and is abutted with the spring pressing block, a limit groove is formed in the side part of the pressure head guide post opposite to the limit groove, and a through hole for a pressure head limit pin to pass through is formed in the position of the pressure head guide post, and the pressure head limit pin is in clearance fit with the limit groove along the radial direction.
Further, in the pressure sensor protection mechanism, an external section of the pressure head limiting pin extending out of the cavity is connected to the limiting pin fixing plate, and the limiting pin fixing plate is fixed on the pressure head guide post.
Further, in the pressure sensor protection mechanism, a through groove is formed in a position opposite to the small-diameter portion of the pressure sensor pressing block at the bottom of the pressure head.
Further, in the pressure sensor protection mechanism, the positioning column is convexly arranged on the bottom surface of the pressure head guide column, and correspondingly, the positioning groove matched with the positioning column is arranged on the base.
Further, in the pressure sensor protection mechanism, the side portion of the pressure sensor extends out of the chamber and is sealed by the pressure sensor sealing cover.
Compared with the prior art, the invention has remarkable advantages and beneficial effects, and is specifically embodied in the following aspects:
The mechanical protection mechanism of the pressure sensor is novel in design, on one hand, the pressure of the press can be transmitted to the pressure sensor in real time to achieve the purpose of monitoring the pressure in real time, on the other hand, even if the pressure of the press exceeds the range of the pressure sensor when equipment is abnormal, the pressure head is blocked by the pressure head limiting pin, the pressure head is prevented from continuing to descend, the pressure sensor is fully protected, the pressure sensor is prevented from being crushed, the service life of the equipment is prolonged, and the maintenance cost of the equipment is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, directional terms, order terms, etc. are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the pressure sensor protection mechanism comprises a base 7, a pressure head guide column 3, a sensor press block 8, a spring 4 and a pressure head 10, wherein the pressure head guide column 3 is installed on the base 7, a positioning column is convexly arranged on the bottom surface of the pressure head guide column 3, correspondingly, a positioning groove matched with the pressure head guide column is formed in the base 7, the pressure head guide column 3 is provided with a cavity for accommodating the pressure sensor 5, the sensor press block 8, the spring press block 9 and the pressure head 10, the pressure sensor 5 is arranged at the bottom of the cavity of the pressure head guide column, the side part of the pressure sensor 5 extends out of the cavity, the pressure sensor press block 6 is packaged, the pressure sensor press block 8 is positioned on the pressure sensor 5, the pressure sensor press block 8 comprises a large-diameter part at the lower end and an upper small-diameter part connected with the pressure sensor press block 8, the spring 4 and the spring press block 9 are sequentially sleeved on the small-diameter part at the upper end of the pressure sensor press block 8, the spring 4 can slide on the sensor press block 8, the pressure head 10 is arranged in the cavity of the pressure head guide column 3 in a butting mode with the spring press block 9, the bottom of the pressure head 10 is opposite to the small-diameter part of the pressure sensor press block 8, a through groove is formed at the side part opposite to the small-diameter part of the pressure-stop pin 10, and the pressure head is provided with a limit groove matched with the limit pin 1 along the limit groove, and the limit pin 1 is formed by passing through the limit groove.
The external section of the pressure head limiting pin 1 extending out of the chamber is connected to the limiting pin fixing plate 2, the limiting pin fixing plate 2 is fixed on the pressure head guide post 3, and the pressure head limiting pin 1 limits the movable position of the pressure head 10, so that the pressure head 10 can only slightly move up and down.
The mechanical protection mechanism of the pressure sensor is fixed on equipment through the base 7, during normal operation, a pressed product is placed on the pressure head 10, and the pressed product is removed by the press, so that the pressure of the press can be transmitted to the pressure sensor in real time, and the purpose of monitoring the pressure by the pressure sensor in real time is achieved.
The principle of the mechanical protection mechanism of the pressure sensor is that, for example, the pressed force of the pressed article is required to be in the range from a N to b N (a is smaller than b), the elastic force of the spring 4 is c N (c is larger than b and smaller than the maximum range of the pressure sensor) after being preloaded, thus, during the working process of the device, if the pressure of the press is between a N and b N, the spring cannot deform, the pressure sensor can monitor the pressed force of the pressed product in real time, when the pressure of the press is abnormally larger than c N, the spring 4 can continuously deform, the position of the pressing head 10 can move downwards, the pressing head limiting pin 1 can be blocked and restrained after a small amount of movement, the pressing head limiting pin 1 can prevent the pressing head from continuously descending, and the extra pressure can be shared by the pressing head limiting pin 1, thus the pressure sensor 5 is protected from exceeding the range of the pressing head.
In summary, the mechanical protection mechanism of the pressure sensor is novel in design, can transmit the pressure of the press to the pressure sensor in real time, achieves the purpose of monitoring the pressure in real time by the pressure sensor, prevents the pressure head from continuing to descend by the pressure head limiting pin even if the pressure of the press exceeds the range of the pressure sensor when equipment is abnormal, fully protects the pressure sensor, prevents the pressure sensor from being crushed, prolongs the service life of the equipment and reduces the maintenance cost of the equipment.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily appreciate variations or alternatives within the scope of the present invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Claims (4)
1. The pressure sensor protection mechanism is characterized by comprising a base (7), a pressure sensor guide column (3), a pressure sensor pressing block (8), a spring (4) and a pressing head (10), wherein the pressure sensor guide column (3) is arranged on the base (7), the pressure sensor guide column (3) is provided with a cavity for accommodating the pressure sensor (5), the pressure sensor pressing block (8), the spring pressing block (9) and the pressing head (10), the pressure sensor (5) is arranged at the bottom of the cavity of the pressure sensor guide column, the pressure sensor pressing block (8) is positioned on the pressure sensor (5), the pressure sensor pressing block (8) comprises a large-diameter part at the lower end and an upper small-diameter part connected with the large-diameter part, the spring (4) and the spring pressing block (9) are sleeved on the small-diameter part at the upper end of the pressure sensor pressing block (8) in sequence, the spring pressing block (9) can slide on the pressure sensor pressing block (8) when the spring pressing block (4) is pressed, the pressing head (10) is arranged in the cavity of the pressure sensor guide column (3) and is abutted with the spring pressing block (9), a limit groove is arranged at the side part of the pressing head (10), the pressure sensor pressing block (3) is opposite to the pressure sensor pressing block (3), the pressure sensor pressing block (1) is provided with a limit pin (1) through which can pass through the limit part, the pressure head limiting pin (1) is in clearance fit with the limiting groove along the radial direction, an external section of the pressure head limiting pin (1) extending out of the cavity is connected to the limiting pin fixing plate (2), and the limiting pin fixing plate (2) is fixed on the pressure head guide column (3).
2. The pressure sensor protection mechanism according to claim 1, wherein a through groove is formed at a position opposite to the small diameter part of the pressure sensor pressing block (8) at the bottom of the pressure head (10).
3. The pressure sensor protection mechanism according to claim 1, wherein the bottom surface of the pressure head guide post (3) is convexly provided with a positioning post, and correspondingly, the base (7) is provided with a positioning groove matched with the positioning post.
4. The pressure sensor protection mechanism according to claim 1, wherein the side portion of the pressure sensor (5) extends outside the chamber and is enclosed by a pressure sensor cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110725201.8A CN113340474B (en) | 2021-06-29 | 2021-06-29 | Pressure sensor protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110725201.8A CN113340474B (en) | 2021-06-29 | 2021-06-29 | Pressure sensor protection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113340474A CN113340474A (en) | 2021-09-03 |
| CN113340474B true CN113340474B (en) | 2024-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110725201.8A Active CN113340474B (en) | 2021-06-29 | 2021-06-29 | Pressure sensor protection mechanism |
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| CN (1) | CN113340474B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848053B (en) * | 2021-11-26 | 2022-06-14 | 济南凯镭迪精密仪器有限公司 | Spring is pressed and is tested overload protection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214793545U (en) * | 2021-06-29 | 2021-11-19 | 科瑞自动化技术（苏州）有限公司 | Pressure sensor protection mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553772A (en) * | 2018-05-30 | 2019-12-10 | 李凤英 | Pressure testing device with protection function |
| US10767673B2 (en) * | 2018-10-24 | 2020-09-08 | Mueller International, Llc | Over-pressure protection system |
| CN111538425A (en) * | 2020-04-21 | 2020-08-14 | 深圳市欣旺达智能硬件有限公司 | Pen tip pressure-sensitive structure and electronic pen |
| CN212844135U (en) * | 2020-09-29 | 2021-03-30 | 常州长荣电子有限公司 | Pressure sensor with buffer structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214793545U (en) * | 2021-06-29 | 2021-11-19 | 科瑞自动化技术（苏州）有限公司 | Pressure sensor protection mechanism |
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| CN113340474A (en) | 2021-09-03 |
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