CN114878071A

CN114878071A - Intelligent calibrating device for pressure gauge

Info

Publication number: CN114878071A
Application number: CN202210713033.5A
Authority: CN
Inventors: 葛君
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-08-09
Anticipated expiration: 2042-06-22
Also published as: CN114878071B

Abstract

The invention relates to the field of detection, in particular to an intelligent calibrating device for a pressure gauge, which comprises a box body, an oil tank and a motor, wherein an oil pumping component, a hydraulic component, an automatic disassembling and assembling component and an intelligent control component are arranged among the box body, the oil tank and the motor, the automatic disassembling and assembling component can utilize power generated by the motor to automatically disassemble and assemble the pressure gauge, the oil pumping component can utilize power generated by the motor to convey hydraulic oil in the oil tank into the pressure gauge through the hydraulic component, the hydraulic component can adjust the pressure of the hydraulic oil and the flowing direction of the hydraulic oil, and an intelligent control group can control the hydraulic component, the motor and the calibrating pressure gauge; the device enables a user to install two pressure gauges simultaneously with two hands, thereby reducing the labor intensity of the user and improving the efficiency of verification work.

Description

Intelligent calibrating device for pressure gauge

Technical Field

The invention relates to the field of detection, in particular to an intelligent calibrating device for a pressure gauge.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates pressure higher than ambient pressure, the conventional pressure gauge displays pressure by means of elastic deformation of the sensitive element (Bourdon tube, bellows and bellows) in the pressure gauge and then by means of a conversion mechanism of a movement in the pressure gauge, pressure deformation is transmitted to a pointer, the pointer is caused to rotate, the application of the pressure gauge is very common, the pressure gauge almost extends to all industrial processes and scientific research fields, and the pressure gauge needs to be periodically verified in order to ensure the detection accuracy.

The existing pressure gauge calibrating device generally needs a worker to manually pressurize a pressure gauge, and when the pressure gauge calibrating device is used for calibrating, the worker needs to read the reading of a pointer through human eyes to calibrate, the workload of the method is large, the working efficiency is not high generally, and the visual fatigue can be caused by long-time working, so that the accuracy of calibration is difficult to ensure.

Therefore, how to improve the assay efficiency and the assay accuracy is a problem to be solved by those skilled in the art.

Disclosure of Invention

The invention provides an intelligent calibrating device for a pressure gauge, aiming at solving the defects of low calibrating efficiency, difficulty in ensuring calibrating accuracy and the like in the prior art.

The technical scheme of the invention is as follows: the utility model provides an intelligence calibrating installation for manometer, the power distribution box comprises a box body, oil tank and motor, the box, be equipped with the pump oil subassembly between oil tank and the motor, hydraulic assembly, automatic dismouting subassembly, the intelligent control subassembly, the automatic dismouting manometer of power that automatic dismouting subassembly can utilize the motor to produce, the pump oil subassembly can utilize the power that the motor produced to pass through hydraulic assembly with the hydraulic oil in the oil tank and carry to the manometer in, hydraulic assembly can adjust the pressure size of hydraulic oil and the direction that hydraulic oil flows, hydraulic assembly and motor and examination manometer can be controlled to the intelligent control group.

Further, the pump oil subassembly include the pump oil tank, the inside bottom surface of box on be equipped with the pump oil tank, the pump oil tank divide into box and lower box, fixed connection between lower box and the box, it is vertical from the driving wheel to be equipped with the axis between box and the lower box, from the driving wheel respectively with last box and lower box sealed rotation be connected, go up the connecting piece fixed connection that the lateral surface of box and lower box passes through the U-shaped, seted up the curved logical groove of several axis line evenly distributed on the terminal surface from the driving wheel, lead to the groove and all incline around axis line towards same direction, the inside of box is equipped with the impeller down, fixed connection between impeller and the driving wheel, the direction of the blade slope of impeller is unanimous with the incline direction that leads to the groove.

Furthermore, the inside of box be close to pump oil tank department and set up the motor, the bottom surface fixed connection of motor and box, fixed mounting has the action wheel on the output shaft of motor, action wheel and follow driving wheel meshing.

Further, axis department splined connection from the driving wheel have vertical pivot, the box is worn out to the upper end of pivot, the pivot is connected with last box seal rotation, be connected with the straight-teeth gear on the top surface of pivot, automatic dismouting subassembly including the direction logical groove, the top surface of box on set up a plurality of direction logical grooves that distribute around the axis ring of pivot, the equal sliding connection in the direction logical groove has the slider, keep away from the first spring of fixedly connected with between the one end of pivot in slider and the direction logical groove, the first through-hole of circular shape has been seted up at the top surface center of slider, the internal rotation of first through-hole is connected with columniform installation piece, it is provided with the tooth to correspond straight-teeth gear department on the side of installation piece, tooth on the installation piece can mesh with the straight-teeth gear, the screw hole has been seted up at the top surface center of installation piece, threaded connection manometer can be threaded connection in the screw hole.

Furthermore, the bottom surface center of installation piece seted up the circular cone hole, the bottom surface of circular cone hole is the taper shape, the second through-hole has been seted up at the bottom surface center of screw hole, the screw hole communicates with each other with the circular cone hole through the second through-hole, the inside of screw hole is provided with the push pedal parallel rather than the bottom surface, the push pedal is through fixed connection between a plurality of second springs and the bottom surface of screw hole, be provided with conical end cap in the circular cone hole, be provided with vertical connecting rod in the second through-hole, the upper and lower both ends of connecting rod respectively with the bottom surface of push pedal and the upper end fixed connection of end cap, evenly seted up a plurality of third through-holes around the connecting rod on the bottom surface of push pedal, the second spring can upwards promote the push pedal, make the push pedal upwards stimulate the end cap through the connecting rod, the circular cone face of end cap can hug closely on the circular cone face in circular cone hole.

Further, the hydraulic assembly include the pressure storage tank, the inner wall of box on fixed mounting have pressure storage tank and reposition of redundant personnel case, through the second pipe connection between pressure storage tank and the last box, and install the check valve on the second pipeline, make hydraulic oil can only get into in the pressure storage tank from the pump oil case, through the third pipe connection between reposition of redundant personnel case and the pressure storage tank, install automatically controlled air-vent valve on the third pipeline, all through the fourth pipe connection between manometer and the reposition of redundant personnel case, the one end that the fourth pipeline corresponds the manometer rotates with the lower extreme of installation piece to be connected, through the fifth pipe connection between the last box of reposition of redundant personnel case and pump oil case, install the solenoid valve on the fifth pipeline for opening and closing of control fifth pipeline.

Furthermore, the intelligent control subassembly include the figure collector, the top surface of box on correspond the equal fixed mounting of manometer department and have the image collector, install the controller on the top surface of box, be equipped with the display screen on the controller, install pressure sensors on the pressure storage tank, the controller respectively with motor, pressure sensors, automatically controlled air-vent valve, solenoid valve and image collector connection of electric lines.

Furthermore, the top surface of the box body is provided with a sample meter which is communicated with the fourth pipeline.

Further, the oil tank and the tank body are fixedly connected, the oil tank and the pump oil tank are connected through a first pipeline, namely one end of the first pipeline is connected with the lower end of the oil tank, and the other end of the first pipeline is connected with the lower end of the side face of the lower tank body.

The invention provides an intelligent calibrating device for a pressure gauge, which has the following beneficial effects: the invention arranges a plurality of arc through grooves which are evenly distributed around the axis on the driven wheel, and matches with the use of the pump oil tank, so that the rotating driven wheel can play the role of pumping oil, and simultaneously, under the action of the rotating shaft and the straight gear, a user can quickly and automatically screw the pressure gauge in the threaded hole, so that the user does not need to screw the pressure gauge manually when installing the pressure gauge, and the user can also install two pressure gauges simultaneously with two hands, thereby reducing the labor intensity of the user and improving the efficiency of verification work, under the action of the controller, the pressure sensor, the image collector and other parts, the device can automatically detect the pressure gauge, improves the intelligent degree of the device, meanwhile, the user can further verify whether the pressure gauge is qualified or not by comparing the pressure gauge with the sample gauge, so that the accuracy of verification work is ensured.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic top view of the present embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 1 at I;

FIG. 4 is a perspective view of the driven wheel and impeller of the present embodiment;

fig. 5 is a schematic sectional view of the driven wheel and the impeller in this embodiment.

Detailed Description

To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present application, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The invention provides an intelligent calibrating device for a pressure gauge, as shown in fig. 1-5, an embodiment of the invention is provided, which comprises a box body 1, the box body 1 can be rectangular, round or other suitable shape, preferably rectangular, and is convenient for processing and manufacturing, a pump oil tank is arranged at the center of the inner bottom surface of the box body 1, the pump oil tank can be divided into an upper box body 201 and a lower box body 202, wherein the lower box body 202 is fixedly connected with the box body 1, a driven wheel 3 with a vertical axis is arranged between the upper box body 201 and the lower box body 202, the driven wheel 3 is respectively connected with the upper box body 201 and the lower box body 202 in a sealing and rotating manner, the outer side surfaces of the upper box body 201 and the lower box body 202 are fixedly connected through a U-shaped connecting piece 203, so as to prevent the upper box body 201 from rotating along with the rotation of the driven wheel, a motor 4 is arranged in the box body 1 near the pump oil tank, and the motor 4 is fixedly connected with the bottom surface of the box body 1, a driving wheel 5 is fixedly installed on an output shaft of the motor 4, and the driving wheel 5 is meshed with the driven wheel 3, so that the motor can drive the driven wheel to rotate.

As shown in fig. 1, an oil tank 6 is arranged inside a tank body 1, the oil tank 6 is fixedly connected with the tank body 1, the oil tank 6 is connected with a pump oil tank through a first pipeline 7, namely, one end of the first pipeline 7 is connected with the lower end of the oil tank 6, the other end of the first pipeline 7 is connected with the lower end of the side surface of a lower tank body 202, a pressure storage tank 8 is fixedly installed on the inner wall of the tank body 1, the pressure storage tank 8 is connected with the pump oil tank through a second pipeline 9, namely, one end of the second pipeline 9 is connected with the pressure storage tank 8, the other end of the second pipeline 9 is connected with the top surface of an upper tank body 201, a one-way valve 10 is installed on the second pipeline 9, so that hydraulic oil can only enter the pressure storage tank from the pump oil tank, a pressure sensor 11 is installed on the pressure storage tank 8 and used for monitoring the pressure of the hydraulic oil in the pressure storage tank, when the pressure sensor senses that the pressure in the pressure storage tank is too high, the system can automatically control the motor to stop, the potential safety hazard caused by overlarge pressure in the pressure storage tank is avoided.

As shown in fig. 4 and 5, a plurality of arc-shaped through grooves 12 uniformly distributed around the axis are formed in the end face of the driven wheel 3, the through grooves 12 are inclined towards the same direction around the axis, when the driven wheel 3 rotates, the through grooves 12 can enable the hydraulic oil of the lower box 202 to be pumped into the upper box 201 through the through grooves 12, the hydraulic oil can enter the pressure storage tank 8 through the second pipeline 9, meanwhile, the hydraulic oil in the oil tank 6 can enter the lower box through the first pipeline, the impeller 13 is arranged inside the lower box 202 and fixedly connected with the driven wheel 3, the inclination direction of the blades of the impeller is consistent with the inclination direction of the through grooves, when the driven wheel rotates, the impeller can also rotate, the pump oil tank can absorb oil from the oil tank through the first pipeline more easily, the hydraulic oil can enter the pressure storage tank through the second pipeline more quickly, and the oil pumping effect is better.

As shown in fig. 1, 2 and 3, a vertical rotating shaft 14 is splined at the axis of a driven wheel 3, the upper end of the rotating shaft 14 penetrates through an upper box 201 and extends to a position close to the inner top surface of the box 1, the rotating shaft 14 is in sealed and rotating connection with the upper box 201, the lower end of the rotating shaft 14 is in rotating connection with a lower box 202, a spur gear 15 is arranged on the top surface of the rotating shaft 14, the spur gear 15 is connected with the rotating shaft 14 through an overload clutch, so that the driven wheel can drive the spur gear to rotate through the rotating shaft when rotating, when the transmitted torque is large, under the action of the overload clutch, the rotating shaft cannot drive the spur gear to rotate, a plurality of guide through grooves 16 annularly distributed around the axis of the rotating shaft 14 are formed on the top surface of the box 1, the number of the guide through grooves 16 is preferably two, sliding blocks 17 are slidably connected in the guide through grooves 16, and a first spring 29 is fixedly connected between the sliding blocks 17 and one end of the guide through grooves 16, which is far away from the spur gear 15, a circular first through hole 18 is formed in the center of the top surface of the sliding block 17, a cylindrical mounting block 19 is rotatably connected in the first through hole 18, teeth 28 are arranged on the side surface of the mounting block 19 corresponding to the straight gear 15 and used for being meshed with the straight gear, a threaded hole 20 is formed in the center of the top surface of the mounting block 19, a conical hole 21 is formed in the center of the bottom surface of the mounting block 19, the bottom surface of the conical hole 21 is conical, a second through hole 22 is formed in the center of the bottom surface of the threaded hole 20, the threaded hole 20 is communicated with the conical hole 21 through the second through hole 22, a push plate 23 parallel to the bottom surface of the threaded hole 20 is arranged inside the threaded hole 20, the push plate 23 is fixedly connected with the bottom surface of the threaded hole 20 through a plurality of second springs 24, a conical plug 25 is arranged in the conical hole 21, a vertical connecting rod 26 is arranged in the second through hole 22, and the upper end and the lower end of the connecting rod 26 are fixedly connected with the bottom surface of the push plate 23 and the upper end of the plug 25 respectively, a plurality of third through holes 27 are uniformly formed on the bottom surface of the push plate 23 around the connecting rod 26, the second spring can push the push plate upwards, so that the plug is pulled upwards by the push plate through the connecting rod, the conical surface of the plug can be tightly attached to the conical surface of the conical hole, so that the lower end of the second through hole is plugged, the pressure gauge 90 can be connected in the threaded hole 21 in a threaded manner, when a user installs the pressure gauge, the joint of the pressure gauge 90 is aligned to the hole opening of the threaded hole, the sliding block is pushed to move towards the direction of the spur gear until the teeth on the side surface of the mounting block are meshed with the spur gear, the spur gear can drive the mounting block to rotate in the first through hole, so that the pressure gauge is automatically screwed into the threaded hole until the pressure gauge is screwed down, the overload clutch can drive the rotating shaft to rotate the spur gear at the moment, the damage to the user caused by the rotation of the pressure gauge is avoided, meanwhile, the pressure gauge is prevented from being screwed down and difficult to be taken out, at the moment, the user can loosen the pressure gauge, make the slider get back to original position under the pulling of first spring, at this moment, the lower extreme of manometer can push up in the push pedal, makes the push pedal offset the power downstream of second spring, promotes the end cap downstream through the connecting rod simultaneously, makes the end cap no longer live the second through-hole jam, and when the manometer was taken out, under the effect of second spring, the push pedal can rebound to drive the end cap rebound through the connecting rod, and plug up the second through-hole again.

As shown in fig. 1 and 2, a sample meter 91 is installed on the top surface of the tank body 1 for comparing with the pressure displayed on the pressure gauge 90, a flow dividing box 30 is fixedly installed on the inner wall of the tank body 1, the flow dividing box 30 is connected with the pressure storage tank 8 through a third pipeline 31, an electrically controlled pressure regulating valve 32 is installed on the third pipeline 31 for regulating the pressure of the hydraulic oil flowing out from the pressure storage tank through the third pipeline, the pressure gauge 90 and the sample meter 91 are connected with the flow dividing box 30 through a fourth pipeline 33, wherein the fourth pipeline 33 connected with the pressure gauge 90 is connected at the opening at the lower end of the conical hole 21, and the fourth pipeline 33 is rotatably connected with the lower end of the mounting block 19, so that the hydraulic oil can flow into the pressure meter and the sample meter through the fourth pipeline, a user can read and compare by observing the position of a pointer on the pressure meter and the sample meter, thereby verifying whether the pressure meter is qualified, the flow dividing box 30 is connected with the upper tank body 201 of the pump oil tank through the fifth pipeline 34, an electromagnetic valve 35 is installed on the fifth pipeline 34 and used for controlling the opening and closing of the fifth pipeline, when the system controls the electromagnetic valve to be opened, the system can control the motor to rotate reversely at the same time, so that the driven wheel and the impeller rotate reversely, and the hydraulic oil in the pressure gauge and the sample gauge returns to the pump oil tank and the oil tank again.

As shown in fig. 2, an image collector 36 is fixedly mounted on the top surface of the box 1 corresponding to the pressure gauge 90 for collecting the change and reading of the pointer on the pressure gauge 90 in real time, a controller 37 is further mounted on the top surface of the box 1, a display screen 38 is mounted on the controller 37, the controller 37 is respectively connected with the motor 4, the pressure sensor 11, the electrically controlled pressure regulating valve 32, the electromagnetic valve 35 and the image collector 36 through wires, and is used for controlling the start and operation of the device, automatically analyzing and comparing the reading on the pressure gauge with the value sensed by the pressure sensor, and displaying the pressure sensed by the pressure sensor and the reading of the pressure gauge shot by the image collector on the display screen, and prompting a user whether the verification is completed and verifying the result.

In conclusion, when the device is used, the controller is firstly used for controlling the motor to be started, the motor drives the driven wheel and the impeller to rotate through the driving wheel, so that hydraulic oil is conveyed into the pressure storage tank through the second pipeline, meanwhile, the driven wheel also drives the straight gear to rotate through the rotating shaft, at the moment, a user can align the joint of the pressure gauge to the orifice of the threaded hole and push the sliding block to move towards the straight gear, teeth on the side surface of the mounting block are meshed with the straight gear, the straight gear drives the mounting block to rotate in the first through hole, so that the pressure gauge is automatically screwed into the threaded hole, at the moment, the user can loosen the pressure gauge, the sliding block returns to the original position under the pulling of the first spring, after the sliding block is screwed into the threaded hole of the pressure gauge, the lower end of the pressure gauge is abutted against the push plate, the push plate counteracts the force of the second spring to move downwards, and meanwhile, the connecting rod pushes the plug to move downwards, the plug does not block the second through hole any more, meanwhile, hydraulic oil enters the threaded hole through the second through hole and then enters the pressure gauge through the third through hole, the pointer of the pressure gauge swings, at the moment, a user can control the electric control pressure regulating valve through the controller, the pressure in the pressure gauge can be adjusted and changed according to a verification rule, meanwhile, the image collector can collect the swinging condition of the pointer on the pressure gauge in real time and transmit the swinging condition to the controller, the controller compares and analyzes the swinging condition with the pressure sensor to verify the pressure gauge, then the user controls the motor to rotate reversely through the controller, so that the driven wheel and the impeller rotate reversely, meanwhile, the controller controls the electromagnetic valve to be opened to enable the hydraulic oil to return to the oil tank again, at the moment, the image collector can collect the swinging condition of the pointer on the pressure gauge again and transmit the swinging condition to the controller, and the controller compares and analyzes with the pressure sensor, thereby whether the examination manometer normally returns to zero, can show the examination result on the display screen at last, the user also can contrast manometer and appearance table this moment to judge whether qualified the manometer, then the user can remove the manometer again to straight-toothed gear department, dismantles the manometer through the straight-toothed gear of reverse rotation, then repeats above step and carries out the examination of next group's manometer.

The invention arranges a plurality of arc through grooves which are evenly distributed around the axis on the driven wheel, and matches with the use of the pump oil tank, so that the rotating driven wheel can play the role of pumping oil, and simultaneously, under the action of the rotating shaft and the straight gear, a user can quickly and automatically screw the pressure gauge in the threaded hole, so that the user does not need to screw the pressure gauge manually when installing the pressure gauge, and the user can also install two pressure gauges simultaneously with two hands, thereby reducing the labor intensity of the user and improving the efficiency of verification work, under the action of the controller, the pressure sensor, the image collector and other parts, the device can automatically detect the pressure gauge, improves the intelligent degree of the device, meanwhile, the user can further verify whether the pressure gauge is qualified or not by comparing the pressure gauge with the sample gauge, so that the accuracy of verification work is ensured.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an intelligent calibrating installation for manometer which characterized in that: the power automatic assembly and disassembly pressure gauge comprises a box body, oil tank and motor, the box, be equipped with the pump oil subassembly between oil tank and the motor, hydraulic assembly, automatic assembly and disassembly subassembly, the intelligent control subassembly, the automatic assembly and disassembly pressure gauge of the power that automatic assembly and disassembly subassembly can utilize the motor to produce, the pump oil subassembly can utilize the power that the motor produced to pass through hydraulic assembly with the hydraulic oil in the oil tank and carry to the manometer in, hydraulic assembly can adjust the pressure size of hydraulic oil and the direction that hydraulic oil flows, hydraulic assembly and motor and examination manometer can be controlled to the intelligent control subassembly.

2. The intelligent calibrating device for the pressure gauge according to claim 1, wherein: pump oil assembly include the pump oil tank, pump oil tank fixed mounting is in the inside of box, the pump oil tank divide into box and lower box, fixed connection between lower box and the box, it is equipped with the vertical follow driving wheel of axis to go up between box and the lower box, from the driving wheel respectively with last box and lower box sealed rotation be connected, go up the connecting piece fixed connection that the lateral surface of box and lower box passes through the U-shaped, set up the curved logical groove of several around axis evenly distributed on the terminal surface from the driving wheel, lead to the groove and all incline around the axis towards same direction, the inside of box is equipped with the impeller down, impeller and follow driving wheel between fixed connection, the direction of the blade slope of impeller is unanimous with the incline direction that leads to the groove.

3. An intelligent calibrating device for a pressure gauge according to claim 2, characterized in that: the inside of box be close to pump oil tank department and set up the motor, the bottom surface fixed connection of motor and box, fixed mounting has the action wheel on the output shaft of motor, action wheel and follow driving wheel meshing.

4. An intelligent calibrating device for a pressure gauge according to claim 3, characterized in that: axis department splined connection from the driving wheel have vertical pivot, the box is worn out to the upper end of pivot, the pivot is connected with last box seal rotation, be connected with the straight-teeth gear on the top surface of pivot, automatic dismouting subassembly including the direction logical groove, the top surface of box on set up a plurality of direction logical grooves that distribute around the axis ring of pivot, the equal sliding connection in the logical groove of direction has the slider, the first spring of fixedly connected with between the one end of pivot is kept away from to slider and direction logical inslot, the first through-hole of circular shape has been seted up at the top surface center of slider, the internal rotation of first through-hole is connected with columniform installation piece, it is provided with the tooth to correspond straight-teeth gear department on the side of installation piece, tooth on the installation piece can mesh with the straight-teeth gear, the screw hole has been seted up at the top surface center of installation piece, can threaded connection manometer in the screw hole.

5. An intelligent calibrating device for a pressure gauge according to claim 4, wherein: the mounting block is characterized in that a conical hole is formed in the center of the bottom surface of the mounting block, the bottom surface of the conical hole is conical, a second through hole is formed in the center of the bottom surface of the threaded hole, the threaded hole is communicated with the conical hole through the second through hole, a push plate parallel to the bottom surface of the threaded hole is arranged inside the threaded hole, the push plate is fixedly connected with the bottom surface of the threaded hole through a plurality of second springs, a conical plug is arranged in the conical hole, a vertical connecting rod is arranged in the second through hole, the upper end and the lower end of the connecting rod are fixedly connected with the bottom surface of the push plate and the upper end of the plug respectively, a plurality of third through holes are formed in the bottom surface of the push plate around the connecting rod uniformly, the second springs can push the push plate upwards, the plug is pulled by the push plate through the connecting rod, and the conical surface of the plug can be tightly attached to the conical surface of the conical hole.

6. An intelligent calibrating device for a pressure gauge according to claim 5, characterized in that: the hydraulic assembly include the pressure storage tank, the inner wall of box on fixed mounting have pressure storage tank and reposition of redundant personnel case, through the second pipe connection between pressure storage tank and the last box, and install the check valve on the second pipeline, make hydraulic oil can only get into in the pressure storage tank from the pump oil case, through the third pipe connection between reposition of redundant personnel case and the pressure storage tank, install automatically controlled air-vent valve on the third pipeline, all through the fourth pipe connection between manometer and the reposition of redundant personnel case, the one end that the fourth pipeline corresponds the manometer rotates with the lower extreme of installation piece to be connected, through the fifth pipe connection between the last box of reposition of redundant personnel case and pump oil case, install the solenoid valve on the fifth pipeline for opening and closing of control fifth pipeline.

7. An intelligent calibrating device for a pressure gauge according to claim 6, characterized in that: the intelligent control assembly comprises a graph collector, an image collector is fixedly mounted on the top surface of the box body corresponding to the position of the pressure gauge, a controller is mounted on the top surface of the box body, a display screen is arranged on the controller, a pressure sensor is mounted on the pressure storage tank, and the controller is respectively connected with a motor, the pressure sensor, an electric control pressure regulating valve, a solenoid valve and the image collector through wires.

8. An intelligent calibrating device for a pressure gauge according to claim 6, characterized in that: and the top surface of the box body is provided with a sample meter which is communicated with the fourth pipeline.

9. An intelligent calibrating device for a pressure gauge according to any one of claims 2 to 8, wherein: the oil tank is fixedly connected with the tank body, the oil tank is connected with the pump oil tank through a first pipeline, namely one end of the first pipeline is connected with the lower end of the oil tank, and the other end of the first pipeline is connected with the lower end of the side face of the lower tank body.