CN211696793U - Portable digital pressure gauge calibrating device - Google Patents
Portable digital pressure gauge calibrating device Download PDFInfo
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- CN211696793U CN211696793U CN202020008877.6U CN202020008877U CN211696793U CN 211696793 U CN211696793 U CN 211696793U CN 202020008877 U CN202020008877 U CN 202020008877U CN 211696793 U CN211696793 U CN 211696793U
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- connecting pipe
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- digital pressure
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Abstract
The utility model discloses a portable digital pressure gauge calibrating device, which relates to the technical field of pressure gauge calibrating devices and solves the technical problem that the existing pressure gauge calibrator is inconvenient to carry, the utility model discloses a connecting pipe, which is provided with a calibrating gauge II and a pressure gauge mounting port, one end of the connecting pipe is connected with an inflator, the other end of the connecting pipe is connected with a check valve, the outlet of the check valve is communicated with the connecting pipe, the inflator comprises a cylinder, one end of the cylinder is communicated with the connecting pipe, the other end of the cylinder is fixedly provided with a plugging plate, a piston is arranged in the cylinder, the plugging plate is provided with a thread through hole, the piston is provided with a screw rod matched with the thread through hole on the plugging plate, one end of the screw rod is rotatably connected with the piston, and the other end of; the utility model has the advantages of simple structure and modern convenience.
Description
Technical Field
The utility model relates to a pressure gauge calibrating device technical field, more specifically relate to a portable digital pressure gauge calibrating device for the calibration technical field of digital pressure gauge.
Background
The pressure gauge verifier is an indispensable device for repairing and calibrating the pressure gauge. It can be used for the calibration of pressure measuring instrument, also can be used for the calibration of non-pressure measuring instrument which has a certain functional relation with pressure value, also can be used for carrying out pressure-bearing experiment of pressure container. In our daily pressure gauge verification work, the pressure gauge calibrator is one of important auxiliary equipment in verification and repair work.
The pressure gauge calibrator can be used in a laboratory or a field environment, adopts an open and transparent design, and has the characteristics of simple operation, stable pressure rise and drop, small adjustment fineness, convenience in maintenance and difficulty in leakage. The pressure bar structure with elaborate design can lead the work to be doubled with half the effort in the labor-saving pressure making process. The pressure gauge calibrator has unique design and is incomparable with hand-clamp pressure pumps in pressure generating efficiency, durability and sealing performance.
The current manometer calibrator needs external compressed air or compressed solution to come to test the manometer, causes the check-up cost increase of manometer, the technical problem that simultaneously also is inconvenient to carry, and traditional manometer calibrator needs external compressed air to hold the bottle and comes to carry out the pressure testing and pressurize with this to the manometer and calibrate the manometer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the technical problem that the current manometer calibrator is inconvenient to carry, the utility model provides a portable digital pressure gauge calibrating device.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides a portable digital pressure gauge calibrating device, includes the connecting pipe, is provided with calibration table two and manometer installing port on the connecting pipe, the one end of connecting pipe is connected with the inflater, the other end of connecting pipe is connected with the check valve, the export and the connecting pipe switch-on of check valve, and the inflater includes the cylinder, the one end and the connecting pipe intercommunication of cylinder, the fixed shutoff board that is provided with of the other end of cylinder, be provided with the piston in the cylinder, be provided with the screw thread through-hole on the shutoff board, be provided with on the piston with on the shutoff board screw thread through-hole assorted screw rod, the one end and the piston of screw rod rotate to be connected.
The working principle is as follows: the digital pressure gauge that will treat the calibration is installed in manometer installing port department, calibration table two is the standard calibration manometer, when needing the calibration, rotate screw rod pulling piston, let the cylinder breathe in, after the cylinder inhales full gas, the antiport screw rod, utilize the screw rod to promote the piston, because the check valve export is put through with the connecting pipe, consequently, the unable discharge of gas in the connecting pipe, consequently, the internal gas pressure of connecting pipe increases, the stop rotation screw rod, pressurize a period, see whether the difference size between calibrated digital pressure gauge and the standard pressure gauge calibration table two is in qualified scope, the calibration work of digital pressure gauge has been accomplished. Because this calibrating device formula utilizes the mode of inflating of inflater to the push-and-pull motion of its piston is realized through the rotation of screw rod, can all can realize calibration work under the condition of no external air supply, let carrying of this device just more convenient, the setting of screw rod can improve the removal precision of its piston simultaneously, and the screw rod has self-locking function as push-and-pull rod itself, provides the guarantee for the pressurize function of this device.
Furthermore, a first calibration meter is further arranged on the connecting pipe, and the first calibration meter and the second calibration meter are symmetrical relative to the pressure meter mounting opening. Through setting up calibration table one, let calibration table one and calibration table two carry out the standard detection to the digital pressure gauge of manometer installation department installation jointly, see the difference condition between the atmospheric pressure at digital pressure gauge both ends, calibration table one is the manometer of standard with calibration table two, and the contrast of two standard manometer is more accurate, improves the accuracy of calibration.
Furthermore, an exhaust valve is arranged on the connecting pipe. The setting of air discharge valve can let the atmospheric pressure in the connecting tube discharge the air through air discharge valve, prevents that atmospheric pressure from too big load that surpasss this banker.
Furthermore, the connecting pipe is a square steel pipe, and a magnetic base is fixedly arranged at the lower end of the connecting pipe. The magnetic base can improve the fixing convenience of the device, and the fixing and the dismounting of the device are more convenient.
Further, magnetic base includes the connecting block with connecting pipe fixed connection, the fixed left side base and the right side base that is provided with of connecting block lower extreme, all be provided with the arc wall on left side base and the right side base, the arc wall size of left side base and right side base equals, the arc of left side base and right side base constitutes the cavity, be provided with permanent magnet and magnetic insulation piece between left side base and the right side base, the permanent magnet sets up in the cavity of the constitution of left side base, magnetic insulation piece quantity is 2, 2 magnetic insulation pieces are symmetrical for the permanent magnet, the one end and the left side base fixed connection of magnetic insulation piece, the other end and the right side base fixed connection of magnetic insulation piece, left side base and right side base are cast iron, magnetic insulation piece is brass.
The utility model has the advantages as follows:
1. the digital pressure gauge that will treat the calibration is installed in manometer installing port department, calibration table two is the standard calibration manometer, when needing the calibration, rotate screw rod pulling piston, let the cylinder breathe in, after the cylinder inhales full gas, the antiport screw rod, utilize the screw rod to promote the piston, because the check valve export is put through with the connecting pipe, consequently, the unable discharge of gas in the connecting pipe, consequently, the internal gas pressure of connecting pipe increases, the stop rotation screw rod, pressurize a period, see whether the difference size between calibrated digital pressure gauge and the standard pressure gauge calibration table two is in qualified scope, the calibration work of digital pressure gauge has been accomplished. Because this calibrating device formula utilizes the mode of inflating of inflater to the push-and-pull motion of its piston is realized through the rotation of screw rod, can all can realize calibration work under the condition of no external air supply, let carrying of this device just more convenient, the setting of screw rod can improve the removal precision of its piston simultaneously, and the screw rod has self-locking function as push-and-pull rod itself, provides the guarantee for the pressurize function of this device.
2. Through setting up calibration table one, let calibration table one and calibration table two carry out the standard detection to the digital pressure gauge of manometer installation department installation jointly, see the difference condition between the atmospheric pressure at digital pressure gauge both ends, calibration table one is the manometer of standard with calibration table two, and the contrast of two standard manometer is more accurate, improves the accuracy of calibration.
3. The setting of air discharge valve can let the atmospheric pressure in the connecting tube discharge the air through air discharge valve, prevents that atmospheric pressure from too big load that surpasss this banker.
4. The magnetic base can improve the fixing convenience of the device, and the fixing and the dismounting of the device are more convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a first schematic structural view of a base;
FIG. 3 is a second schematic structural view of the base;
fig. 4 is a schematic view of the check valve structure.
Reference numerals: 1-one-way valve, 2-connecting pipe, 3-exhaust valve, 4-first calibration gauge, 5-digital pressure gauge, 6-second calibration gauge, 7-air passage, 8-cylinder barrel, 9-piston, 10-screw, 11-cylinder hole, 12-blocking plate, 13-hand wheel, 14-connecting hole, 15-magnetic seat, 16-connecting block, 17-left base, 18-right base, 19-permanent magnet and 20-insulating block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as 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 present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 4, this embodiment provides a portable digital pressure gauge calibrating device, including connecting pipe 2, be provided with calibration table two 6 and manometer installing port on the connecting pipe 2, the one end of connecting pipe 2 is connected with the inflater, the other end of connecting pipe 2 is connected with check valve 1, the export and the connecting pipe 2 switch-on of check valve 1, the inflater includes cylinder 8, the one end and the connecting pipe 2 intercommunication of cylinder 8, the other end of cylinder 8 is fixed and is provided with shutoff board 12, be provided with piston 9 in the cylinder 8, be provided with the screw thread through-hole on the shutoff board 12, be provided with on the piston 9 with shutoff board 12 on screw thread through-hole assorted screw rod 10, the one end and the piston 9 of screw rod 10 rotate to be connected, the other end of screw rod 10 passes shutoff board 12 after-fixing and is provided with.
The connecting pipe 2 is further provided with a first calibration meter 4, and the first calibration meter 4 and the second calibration meter 6 are symmetrical relative to the pressure gauge mounting opening. Through setting up calibration table one 4, let calibration table one 4 and calibration table two 6 carry out the standard detection to the digital pressure gauge of manometer installation department installation jointly, see the difference condition between the atmospheric pressure at digital pressure gauge both ends, calibration table one 4 and calibration table two 6 are the manometer of standard, and the contrast of two standard pressure gauges is more accurate, improves the accuracy of calibration.
Example 2
As shown in fig. 1 to 4, this embodiment provides a portable digital pressure gauge calibrating device, including connecting pipe 2, be provided with calibration table two 6 and manometer installing port on the connecting pipe 2, the one end of connecting pipe 2 is connected with the inflater, the other end of connecting pipe 2 is connected with check valve 1, the export and the connecting pipe 2 switch-on of check valve 1, the inflater includes cylinder 8, the one end and the connecting pipe 2 intercommunication of cylinder 8, the other end of cylinder 8 is fixed and is provided with shutoff board 12, be provided with piston 9 in the cylinder 8, be provided with the screw thread through-hole on the shutoff board 12, be provided with on the piston 9 with shutoff board 12 on screw thread through-hole assorted screw rod 10, the one end and the piston 9 of screw rod 10 rotate to be connected, the other end of screw rod 10 passes shutoff board 12 after-fixing and is provided with.
The connecting pipe 2 is a square steel pipe, a magnetic base 15 is fixedly arranged at the lower end of the connecting pipe 2, the magnetic base 15 comprises a connecting block 16 fixedly connected with the connecting pipe 2, a left base 17 and a right base 18 are fixedly arranged at the lower end of the connecting block 16, arc-shaped grooves are formed in the left base 17 and the right base 18, the arc-shaped grooves of the left base 17 and the right base 18 are equal in size, a cavity is formed by the arc-shaped grooves of the left base 17 and the right base 18, a permanent magnet 19 and a magnetism-insulating block 20 are arranged between the left base 17 and the right base 18, the permanent magnet 19 is arranged in the cavity formed by the left base 17 and the right base 18, the number of the magnetism-insulating blocks 20 is 2, 2 magnetism-insulating blocks 20 are symmetrical relative to the permanent magnet 19, one end of each magnetism-insulating block 20 is fixedly connected with the left base 17, the other end of each magnetism-insulating, the magnetic insulating block 20 is brass.
Example 3
The working principle and the using method are as follows: install the digital pressure gauge of treating the calibration in manometer installing port department, calibration table two 6 is the standard calibration manometer, when needing the calibration, rotate screw rod 10 pulling piston 9, let cylinder 8 breathe in, after cylinder 8 inhales full gas, reverse rotation screw rod 10, utilize screw rod 10 to promote piston 9, because the 1 export of check valve is put through with connecting pipe 2, consequently, the unable discharge of gas in the connecting pipe 2, consequently, the internal gas pressure of connecting pipe 2 increases, stop rotating screw rod 10, pressurize a period of time, see whether the difference size between calibrated digital pressure gauge and the standard pressure gauge calibration table two 6 is within the qualified scope, the calibration work of digital pressure gauge has been accomplished. Because this calibrating device formula utilizes the mode of inflating of inflater to the push-and-pull motion of its piston 9 is realized through the rotation of screw rod 10, can all can realize calibration work under the condition of no external air supply, let carrying of this device just more convenient, the setting of screw rod 10 can improve the removal precision of its piston 9 simultaneously, and screw rod 10 has self-locking function as push-and-pull rod itself, provides the guarantee for the pressurize function of this device.
Claims (5)
1. A portable digital pressure gauge calibration device comprises a connecting pipe (2), a second calibration gauge (6) and a pressure gauge mounting port are arranged on the connecting pipe (2), the inflator is characterized in that one end of the connecting pipe (2) is connected with an inflator, the other end of the connecting pipe (2) is connected with the one-way valve (1), an outlet of the one-way valve (1) is communicated with the connecting pipe (2), the inflator comprises a cylinder barrel (8), one end of the cylinder barrel (8) is communicated with the connecting pipe (2), a plugging plate (12) is fixedly arranged at the other end of the cylinder barrel (8), a piston (9) is arranged in the cylinder barrel (8), a thread through hole is formed in the plugging plate (12), a screw rod (10) matched with the thread through hole in the plugging plate (12) is arranged on the piston (9), one end of the screw rod (10) is rotatably connected with the piston (9), and a hand wheel (13) is fixedly arranged at the rear of the plugging plate (12.
2. The portable digital pressure gauge calibrating device according to claim 1, wherein the connecting pipe (2) is further provided with a first calibrating gauge (4), and the first calibrating gauge (4) and the second calibrating gauge (6) are symmetrical with respect to the pressure gauge mounting port.
3. The calibration device of portable digital pressure gauge according to claim 1, characterized in that the connection tube (2) is further provided with an exhaust valve (3).
4. The portable digital pressure gauge calibration device according to claim 1, wherein the connecting tube (2) is a square steel tube, and a magnetic base (15) is fixedly arranged at the lower end of the connecting tube (2).
5. The portable digital pressure gauge calibrating device according to claim 4, wherein the magnetic base (15) comprises a connecting block (16) fixedly connected with the connecting pipe (2), a left base (17) and a right base (18) are fixedly arranged at the lower end of the connecting block (16), arc-shaped grooves are respectively arranged on the left base (17) and the right base (18), the arc-shaped grooves of the left base (17) and the right base (18) have the same size, the arcs of the left base (17) and the right base (18) form a cavity, a permanent magnet (19) and a magnetism isolating block (20) are arranged between the left base (17) and the right base (18), the permanent magnet (19) is arranged in the cavity formed by the left base (17) and the right base (18), the number of the magnetism isolating blocks (20) is 2, and the 2 magnetism isolating blocks (20) are symmetrical relative to the permanent magnet (19), one end of the magnetic insulating block (20) is fixedly connected with the left base (17), the other end of the magnetic insulating block (20) is fixedly connected with the right base (18), the left base (17) and the right base (18) are both made of cast iron, and the magnetic insulating block (20) is made of brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020008877.6U CN211696793U (en) | 2020-01-03 | 2020-01-03 | Portable digital pressure gauge calibrating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020008877.6U CN211696793U (en) | 2020-01-03 | 2020-01-03 | Portable digital pressure gauge calibrating device |
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| CN211696793U true CN211696793U (en) | 2020-10-16 |
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| CN202020008877.6U Active CN211696793U (en) | 2020-01-03 | 2020-01-03 | Portable digital pressure gauge calibrating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484914A (en) * | 2020-10-30 | 2021-03-12 | 南京理工大学 | Quasi-static air pressure calibration device of minimum range pressure system and design method |
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2020
- 2020-01-03 CN CN202020008877.6U patent/CN211696793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484914A (en) * | 2020-10-30 | 2021-03-12 | 南京理工大学 | Quasi-static air pressure calibration device of minimum range pressure system and design method |
| CN112484914B (en) * | 2020-10-30 | 2022-04-19 | 南京理工大学 | Quasi-static air pressure calibration device of minimum range pressure system and design method |
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