CN213397489U - Pressure calibration device for instruments and meters - Google Patents
Pressure calibration device for instruments and meters Download PDFInfo
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- CN213397489U CN213397489U CN202021743964.2U CN202021743964U CN213397489U CN 213397489 U CN213397489 U CN 213397489U CN 202021743964 U CN202021743964 U CN 202021743964U CN 213397489 U CN213397489 U CN 213397489U
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- air pressure
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Abstract
The utility model relates to a pressure check-up technical field discloses a pressure check-up device for instrument and meter, comprising a base plate, bottom plate upper surface right side fixed mounting has the detection main part, and horizontal atmospheric pressure detection passageway has been seted up on upper portion in the detection main part, and left surface fixed mounting has laser range sensor in the gaseous detection passageway, and left surface fixed mounting has the spring in the gaseous detection passageway, and spring right-hand member fixed mounting has the mounting panel, and mounting panel right flank fixed mounting has pressure sensor, and the outside of pressure sensor and mounting panel is fixed mounting has airtight packing ring jointly on the surface, atmospheric pressure detection passageway right side upper surface intercommunication has the admission line. The utility model has the advantages that: the pressure can be detected in two modes during pressure checking, so that the correctness of checking is guaranteed, the condition that a single error occurs is prevented from influencing the checking result, multiple groups of data under different pressures can be detected in a single mode, and the practicability is improved.
Description
Technical Field
The utility model relates to a pressure calibration technical field specifically is a pressure calibration equipment for instrument and meter.
Background
The pressure calibration is a new generation of metering standard calibration device integrating the modern metering test technology, the computer technology and the information management technology, and a set of automatic pressure calibration equipment is prepared by a full-range automatic pressure generation part, a high-precision pressure standard part and the like. But current pressure calibration equipment design is reasonable inadequately, can not realize adjusting the mode of check-up according to the needs of environment, also can't carry out pressure release and supplementary pressure when pressure is too high moreover, be not convenient for dismouting and washing.
In order to solve the above problems, chinese patent CN 108645564 a discloses a pressure calibration device, the device is provided with an air pressure chamber and a hydraulic pressure chamber, the air pressure chamber and the hydraulic pressure chamber are provided with two sets of hydraulic telescopic rods, the hydraulic value of the signal hydraulic end is adjusted through control end signal control, when the hydraulic value is high, the resistance of the hydraulic telescopic rods is larger, when the hydraulic value is low, the resistance of the hydraulic telescopic rods is reduced, but when the device is used, the device calibrates gas or liquid pressure through the pressure of the adjusting hydraulic rod, after the calibration is started again, the pressure of the hydraulic rod can not be adjusted for many times, only single pressure calibration can be performed at every time, the device is not beneficial to pressure practicability and accuracy, and the device only has a set of devices when calibrating pressure, errors easily occur, the problem of inaccurate measurement and the like, and further the result of the calibration is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure calibration equipment for instrument to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a pressure calibration device for instruments and meters comprises a bottom plate, wherein a detection main body is fixedly arranged on the right side of the upper surface of the bottom plate, a transverse air pressure detection channel is arranged at the upper part in the detection main body, the right end of the air pressure detection channel is communicated with an air pressure detection interface, a laser ranging sensor is fixedly arranged on the left side surface in the air pressure detection channel, a spring is fixedly arranged on the left side surface in the air pressure detection channel, a mounting plate is fixedly arranged on the right end of the spring, a pressure sensor is fixedly arranged on the right side surface of the mounting plate, an airtight gasket is fixedly arranged on the outer side surfaces of the pressure sensor and the mounting plate together, the upper surface on the right side of the air pressure detection channel is communicated with an air inlet pipeline, the left end of the air inlet pipeline is communicated with an air pump fixedly, the hydraulic pressure detection channel parallel with the air pressure detection channel is set up to air pressure detection channel below, and hydraulic pressure detection channel is inside to be provided with the same laser ranging sensor of structure, spring, mounting panel, pressure sensor and gas tight packing ring in the air pressure detection channel, and the intercommunication has the hydraulic pressure to detect the interface on the hydraulic pressure detection channel right flank, and hydraulic pressure detection channel right side upper surface intercommunication has the liquid feeding pipeline, and liquid feeding pipeline left end intercommunication has fixed mounting on the left liquid pump of bottom plate upper surface, hydraulic pressure detection channel left side lower surface intercommunication has the liquid outlet pipe way, and the one end fixed mounting that the liquid outlet pipe way is close to the intercommunication mouth has a pressure valve.
As a further aspect of the present invention: a display screen is fixedly mounted on the left side of the upper surface of the detection main body.
As a further aspect of the present invention: and the air pressure detection interface is fixedly provided with an air filter for preventing impurities in the detection gas from entering the air pressure detection channel.
As a further aspect of the present invention: and a liquid filter for preventing impurities in the detection liquid from entering the hydraulic detection channel is fixedly arranged on the hydraulic detection interface.
As a further aspect of the present invention: the pneumatic detection channel with the equal fixed mounting of mounting plate left surface in the hydraulic detection channel has horizontal telescopic link, and telescopic link left end fixed mounting is on pneumatic detection channel and hydraulic detection channel's the left surface.
Compared with the prior art, the beneficial effects of the utility model are that: by arranging the spring, the mounting plate, the pressure sensor and the laser ranging sensor, the pressure can be detected in two ways when the pressure is checked, so that the checking accuracy is ensured, and the checking result is prevented from being influenced by the error condition of a single pressure sensor; through setting up liquid pump and air pump for can change the pressure that detects through air pump and liquid pump when examining, and then the single multiunit data that can detect under the different pressure have increased the exactness of practicality and check-up.
Drawings
Fig. 1 is a front view of a pressure verification apparatus for an instrument.
Fig. 2 is a schematic structural diagram of a spring and a telescopic rod in the pressure calibration device for the instrument.
Fig. 3 is a sectional view of a mounting plate in a pressure verification apparatus for an instrument.
Wherein: 1. the device comprises a bottom plate, a detection main body, a pressure detection channel, a pressure detection interface, a pressure sensor, a mounting plate, an airtight gasket, a spring, a laser distance measurement sensor, a liquid inlet pipeline, a check valve, a liquid feeding pipeline, a liquid outlet pipeline, a liquid pump, a gas pump, a display screen, a gas filter, a liquid filter, a gas filter, a pressure relief pipe, a pressure valve, a telescopic rod and a display screen, wherein the bottom plate, the detection main body, the pressure detection channel, the pressure detection.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
Referring to fig. 1-3, a pressure calibration device for instruments and meters comprises a bottom plate 1, a detection main body 2 is fixedly installed on the right side of the upper surface of the bottom plate 1, a horizontal air pressure detection channel 3 is formed in the upper portion of the detection main body 2, an air pressure detection interface 5 is communicated with the right end of the air pressure detection channel 3, a laser ranging sensor 11 is fixedly installed on the left side of the air pressure detection channel 3, a spring 10 is fixedly installed on the left side of the air pressure detection channel 3, a mounting plate 8 is fixedly installed on the right end of the spring 10, a pressure sensor 7 is fixedly installed on the right side of the mounting plate 8, an airtight washer 9 is fixedly installed on the outer side surfaces of the pressure sensor 7 and the mounting plate 8 together, air enters the air pressure detection channel 3 from the air pressure detection interface 5 and pushes the mounting plate 8 to the left to compress the spring 10, the laser ranging sensor 11, the upper surface of the right side of the air pressure detection channel 3 is communicated with an air inlet pipeline 12, the left end of the air inlet pipeline 12 is communicated with an air pump 17 fixedly arranged on the left side of the upper surface of the bottom plate 1, the upper surface of the left side of the air pressure detection channel 3 is communicated with an air pressure relief pipe 21, a pressure valve 22 is fixedly arranged on the air pressure relief pipe 21, after a piece of data is detected, the air pump 17 conveys air into the air pressure detection channel 3 through the air inlet pipeline 12 to increase the pressure in the air pressure detection channel 3, the detection is carried out again, if the pressure is greater than the set value of the pressure valve 22, the air can overflow from the air pressure relief pipe 21, a hydraulic pressure detection channel 4 parallel to the air pressure detection channel 3 is arranged below the air pressure detection channel 3, a laser ranging sensor 11, a spring 10, a mounting plate 8, a pressure sensor 7 and an airtight, the hydraulic detection channel 4 is communicated with a hydraulic detection interface 6 on the right side face, the upper surface of the right side of the hydraulic detection channel 4 is communicated with a liquid adding pipeline 14, the left end of the liquid adding pipeline 14 is communicated with a liquid pump 16 fixedly mounted on the left side of the upper surface of the bottom plate 1, the lower surface of the left side of the hydraulic detection channel 4 is communicated with a liquid outlet pipeline 15, and a pressure valve 22 is fixedly mounted at one end, close to the communication interface, of the liquid outlet pipeline 15.
The utility model discloses a theory of operation is: when the air pressure is checked, the pipeline is communicated with the air pressure detection interface 5, air enters the air pressure detection channel 3 from the air pressure detection interface 5 and pushes the mounting plate 8 to the left so as to compress the spring 10, the pressure sensor 7 measures the pressure after the spring 10 is stabilized, the laser ranging sensor 11 measures the distance of leftward movement of the mounting plate 8, the pressure is calculated, the pressure detected by the pressure sensor 7 and the pressure calculated by the laser ranging sensor 11 are displayed on the display screen 18 for comparison, after one piece of data is detected, the air pump 17 conveys the air into the air pressure detection channel 3 through the air inlet pipeline 12, the pressure in the air pressure detection channel 3 is increased and detected again, if the pressure is greater than the set value of the pressure valve 22, the air can overflow from the air pressure relief pipe 21, the danger is prevented, and the correctness of the pressure check is ensured through a plurality of groups of detected data, when the hydraulic pressure is verified, the steps are the same as the steps for verifying the air pressure.
Example two
On the basis of the first embodiment, a display screen 18 is fixedly installed on the left side of the upper surface of the detection main body 2, and both the pressure detected by the pressure sensor 7 and the pressure obtained by the laser ranging sensor 11 through calculation are displayed on the display screen 18 for comparison; the air pressure detection interface 5 is fixedly provided with an air filter 19, and impurities in the detection gas are prevented from entering the air pressure detection channel 3 through the air filter 19 to influence the detection of the pressure; a liquid filter 20 is fixedly installed on the hydraulic detection interface 6, and impurities in the detection liquid are prevented from entering the hydraulic detection channel 4 through the liquid filter 20 to influence the detection of the pressure; the left side surfaces of the mounting plates 8 in the air pressure detection channel 3 and the hydraulic detection channel 4 are both fixedly provided with a transverse telescopic rod 23, and the left end of the telescopic rod 23 is fixedly arranged on the left side surfaces of the air pressure detection channel 3 and the hydraulic detection channel 4; the right ends of the gas inlet pipeline 12 and the liquid charging pipeline 14 are fixedly provided with a one-way valve 13 at the position close to the communication port.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. The pressure calibration device for the instruments and meters comprises a bottom plate (1) and is characterized in that a detection main body (2) is fixedly installed on the right side of the upper surface of the bottom plate (1), a transverse air pressure detection channel (3) is formed in the upper portion of the detection main body (2), an air pressure detection interface (5) is communicated with the right end of the air pressure detection channel (3), a laser ranging sensor (11) is fixedly installed on the inner left side of the air pressure detection channel (3), a spring (10) is fixedly installed on the inner left side of the air pressure detection channel (3), a mounting plate (8) is fixedly installed on the right end of the spring (10), a pressure sensor (7) is fixedly installed on the right side of the mounting plate (8), an airtight gasket (9) is fixedly installed on the outer surfaces of the pressure sensor (7) and the mounting plate (8) together, an air inlet pipeline (12, the left end of the air inlet pipeline (12) is communicated with an air pump (17) fixedly installed on the left side of the upper surface of the bottom plate (1), the upper surface of the left side of the air pressure detection channel (3) is communicated with a gas pressure relief pipe (21), a pressure valve (22) is fixedly installed on the gas pressure relief pipe (21), a hydraulic detection channel (4) parallel to the air pressure detection channel (3) is arranged below the air pressure detection channel (3), a laser ranging sensor (11), a spring (10), an installation plate (8), a pressure sensor (7) and an airtight gasket (9) which have the same structure as the air pressure detection channel (3) are arranged inside the hydraulic detection channel (4), a hydraulic detection interface (6) is communicated on the right side surface of the hydraulic detection channel (4), a liquid adding pipeline (14) is communicated with the upper surface of the right side of the hydraulic detection channel (4), and the left end of the liquid adding pipeline (14) is communicated with a liquid pump (16), the lower surface of the left side of the hydraulic detection channel (4) is communicated with a liquid outlet pipeline (15), and one end, close to the communication port, of the liquid outlet pipeline (15) is fixedly provided with a pressure valve (22).
2. The pressure calibration device for the instrument and meter as claimed in claim 1, characterized in that a display screen (18) is fixedly arranged on the left side of the upper surface of the detection main body (2).
3. The pressure calibration device for the instrument and meter according to claim 1, wherein a gas filter (19) for preventing impurities in the detection gas from entering the gas pressure detection channel (3) is fixedly installed on the gas pressure detection interface (5).
4. The pressure calibration device for the instrument and meter according to claim 1, wherein a liquid filter (20) for preventing impurities in the detection liquid from entering the hydraulic detection channel (4) is fixedly installed on the hydraulic detection interface (6).
5. The pressure calibration device for the instrument and meter as claimed in claim 1 or 2, wherein the left side surfaces of the mounting plates (8) in the air pressure detection channel (3) and the hydraulic pressure detection channel (4) are both fixedly provided with a transverse telescopic rod (23), and the left ends of the telescopic rods (23) are fixedly mounted on the left side surfaces of the air pressure detection channel (3) and the hydraulic pressure detection channel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021743964.2U CN213397489U (en) | 2020-08-20 | 2020-08-20 | Pressure calibration device for instruments and meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021743964.2U CN213397489U (en) | 2020-08-20 | 2020-08-20 | Pressure calibration device for instruments and meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213397489U true CN213397489U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021743964.2U Active CN213397489U (en) | 2020-08-20 | 2020-08-20 | Pressure calibration device for instruments and meters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213397489U (en) |
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2020
- 2020-08-20 CN CN202021743964.2U patent/CN213397489U/en active Active
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