CN112461447A

CN112461447A - Air pressure detector calibration equipment

Info

Publication number: CN112461447A
Application number: CN202011373012.0A
Authority: CN
Inventors: 陈子能
Original assignee: Qingdao Keka Stationery Co Ltd
Current assignee: Qingdao Keka Stationery Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-09

Abstract

The invention discloses a calibration device of an air pressure detector, which comprises a machine body, wherein the upper end surface of the machine body is communicated with a connecting cavity with an upward opening, the left wall surface and the right wall surface of the upper side of the connecting cavity are communicated with electromagnet core cavities which are symmetrical to each other, a locking mechanism is arranged in each electromagnet core cavity, the lower wall surface of the connecting cavity is communicated with the gas conveying cavity extending downwards, and the lower wall surface of the connecting cavity is fixedly provided with the trigger blocks which are bilaterally symmetrical, the invention can clearly know the state of the air pressure detector before use by proofreading the air pressure detector to be detected by utilizing the homologous air pressure, thereby avoiding the error of data caused by misusing the detector with inaccurate precision, meanwhile, accidents can be avoided in time, meanwhile, the device can carry out airtightness treatment on the interface, air leakage during detection is prevented, and then the air pressure detector can be rapidly and effectively calibrated.

Description

Air pressure detector calibration equipment

Technical Field

The invention relates to the field of instrument detection, in particular to a calibration device of an air pressure detector.

Background

In our daily life, the air pressure detector can be frequently used, the air pressure detector in real life is short of better maintenance, severe vibration of the air pressure detector and abrasion of internal parts are easily caused, the air leakage phenomenon of the air pressure detector can further occur, further, errors can occur in detected air pressure values, further, certain accidents are easily caused, the detection efficiency of the traditional air pressure detector is low, and meanwhile, the detection effect is not accurate.

Disclosure of Invention

In order to solve the problems, the air pressure detector calibration device is designed in the embodiment, the air pressure detector calibration device comprises a machine body, the upper end surface of the machine body is communicated with a connecting cavity with an upward opening, the left wall surface and the right wall surface of the upper side of the connecting cavity are communicated with electromagnet core cavities which are symmetrical to each other, a locking mechanism is arranged in each electromagnet core cavity, the lower wall surface of the connecting cavity is communicated with a gas conveying cavity which extends downwards, trigger blocks which are symmetrical to each other are fixedly arranged on the lower wall surface of the connecting cavity, a trigger cavity is arranged in each trigger block, a trigger plate which can slide up and down is arranged on the inner wall surface of each trigger cavity, a trigger rod which extends upwards is fixedly arranged on the upper end surface of each trigger rod on the left side and the right side, an annular sealing rubber ring is fixedly arranged on the upper end of each trigger rod on the left side and the right side, a locking trigger head is, an air vent is communicated between the upper end face and the lower end face of the sealing rubber ring, an air pressure detection disc is arranged on the upper side of the position corresponding to the sealing rubber ring, an air pressure detection column is fixedly arranged on the lower end face of the air pressure detection disc, a connecting block is fixedly arranged on the lower end face of the air pressure detection column, the trigger plate and the locking trigger head can control the locking mechanism to work when contacting with each other, a corrugated pipe extending upwards is fixedly arranged on the lower end face of the connecting cavity corresponding to the air conveying cavity, the upper end of the corrugated pipe is fixedly connected with the lower end face of the sealing rubber ring, a right end face of the machine body is communicated with a calibration cavity with a right opening, a closed cover plate capable of being closed is fixedly arranged on the inner wall face of the calibration cavity, a power cavity is arranged in the machine body on the left side of the calibration cavity, a fixed, rotate chamber left side wall and rotate and be equipped with and extend to proofread the inside gauge rod of chamber, the power chamber is kept away from the fixed annular that is equipped with right extension of left wall of fixed block axle center one side leads the slider, it is equipped with opening right annular and leads the spout to lead the slider right-hand member, it can gliding sliding block to lead inside being equipped with of spout, the sliding block has the end to extend lead the slider right-hand member, the sliding block right-hand member is fixed to be equipped with to keeping away from the piece that twists reverse that extends in gauge rod axle center one side is located the power intracavity portion the disc outside the gauge rod is fixed and is equipped with the torsion disc, twist reverse disc left end face with it is fixed to be equipped with torsion spring to.

Preferably, the left wall surface of the power cavity is far away from an air pressure conveying block fixedly arranged on one side of the axis of the guide sliding block and extending rightwards, an air pressure storage cavity is arranged inside the air pressure conveying block, the inner wall surface of the air pressure storage cavity is provided with a sliding plate capable of sliding in a sealing mode, a clockwise side end face of the sliding plate is fixedly provided with an annular guide rod extending out of the upper end face of the air pressure conveying block, a poking plate is fixedly arranged at one clockwise end of the annular guide rod and close to one side upper end face of the indicating rod and is abutted against an anticlockwise side end face of the torsion block, and a return spring is fixedly connected between the anticlockwise side end face of the sliding.

Preferably, the counterclockwise end of the air pressure conveying block is communicated with the air pressure storage cavity to form a pressure relief hole, the pressure relief hole plays a pressure relief protection role, a dial is fixedly arranged on the left wall surface of the calibration cavity, the right end of the indicating rod penetrates through the right end surface of the dial, and a pointer is fixedly arranged at the right end of the indicating rod.

Preferably, a piston cavity is formed in the machine body on the left side of the detection motor, a crankshaft penetrating through the left wall surface and the right wall surface of the piston cavity is in power connection with the left end surface of the detection motor, a piston capable of sliding up and down is arranged on the inner wall surface of the piston cavity, a sealing plate capable of being sealed is fixedly arranged on the inner wall surface of the upper end of the piston cavity, a connecting rod extending upwards is hinged to the outer circular surface of the crankshaft and located in the piston cavity, and the upper end of the connecting rod is hinged to the lower end surface of the.

Preferably, the communicating holes are arranged in bilateral symmetry in a communicating mode between the upper end face and the lower end face of the sealing plate, the communicating holes are arranged in the left side and are symmetrical to the communicating holes, the air inlet pipe is arranged between the upper end face of the sealing plate and the outside in a communicating mode, the air outlet pipe which extends upwards is fixedly arranged on the upper end face of the sealing plate, which corresponds to the communicating holes in the right side, the upper end of the air outlet pipe is communicated with the air distribution pipe, one end of the air distribution pipe is communicated with the right wall face of the gas conveying cavity, and the other end.

Preferably, the inner wall surface of the gas conveying cavity is provided with a communicating valve capable of sliding up and down, and a pushing connecting rod is hinged between the upper end surface of the communicating valve and the lower end surface of the sealing rubber ring.

Preferably, the inside locking head that can the horizontal slip that is equipped with of electro-magnet core chamber, the electro-magnet core chamber is kept away from the fixed electromagnetic core that is equipped with of sealing rubber ring centre of a circle lateral wall, the electro-magnet core chamber is kept away from sealing rubber ring centre of a circle lateral wall and homonymy the locking head is kept away from fixedly be equipped with electromagnetic spring between the sealing rubber ring centre of a circle lateral wall, electromagnetic core and homonymy be connected with the linkage wire between the locking trigger head, the locking head is kept away from sealing rubber ring centre of a circle lateral wall is equipped with admittedly and extends the stay cord of organism is located the organism outside the stay cord is fixed to be equipped with and removes the pulling block.

Preferably, an air inlet channel is communicated between the lower end face of the connecting block and the upper end face of the air pressure detection column, and the air inlet channel can transmit air pressure to the air pressure detection disc.

The invention has the beneficial effects that: according to the invention, the air pressure detector to be detected is re-calibrated by utilizing the homologous air pressure, so that the state of the air pressure detector before use can be clearly familiar, the error of data caused by misusing the detector with inaccurate precision is avoided, meanwhile, the occurrence of accidents can be timely avoided, meanwhile, the device can carry out airtight treatment on the interface, the air leakage during detection is prevented, and further, the calibration of the air pressure detector can be quickly and effectively realized.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of B of FIG. 1;

FIG. 4 is an enlarged schematic view of C in FIG. 1;

fig. 5 is an enlarged schematic view of D in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a calibration device for an air pressure detector, which comprises a machine body 11, wherein the upper end surface of the machine body 11 is communicated with a connecting cavity 12 with an upward opening, the left and right wall surfaces of the upper side of the connecting cavity 12 are communicated with electromagnet core cavities 13 which are symmetrical to each other, a locking mechanism is arranged in each electromagnet core cavity 13, the lower wall surface of the connecting cavity 12 is communicated with a gas conveying cavity 28 which extends downwards, the lower wall surface of the connecting cavity 12 is fixedly provided with trigger blocks 29 which are symmetrical to each other, a trigger cavity 30 is arranged in each trigger block 29, the inner wall surface of each trigger cavity 30 is provided with a trigger plate 32 which can slide up and down, the upper end surface of each trigger plate 32 is fixedly provided with a trigger rod 33 which extends upwards, the upper ends of the trigger rods 33 on the left and right sides are fixedly provided with annular sealing rubber rings 34, the lower wall surface of each trigger cavity 30 is fixedly provided with a locking trigger head 31, and a, the sealing rubber ring 34 is communicated with a vent hole 35 between the upper end surface and the lower end surface, an air pressure detection disc 19 is arranged on the upper side of the position corresponding to the sealing rubber ring 34, an air pressure detection column 20 is fixedly arranged on the lower end surface of the air pressure detection disc 19, a connecting block 22 is fixedly arranged on the lower end surface of the air pressure detection column 20, the locking mechanism can be controlled to work when the trigger plate 32 is contacted with the locking trigger head 31, an upward extending corrugated pipe 36 is fixedly arranged on the lower end surface of the connecting cavity 12 corresponding to the air conveying cavity 28, the upper end of the corrugated pipe 36 is fixedly connected with the lower end surface of the sealing rubber ring 34, a right end surface of the machine body 11 is communicated with a calibration cavity 25 with a right opening, a closed cover plate 26 capable of being closed is fixedly arranged on the inner wall surface of the calibration cavity 25, a power cavity 51 is arranged in the machine body 11 on the left side, fixed block 52 right-hand member face is equipped with opening right rotation chamber 53, it is equipped with to extend to rotate chamber 53 left side wall rotation check chamber 25 inside indicator 54, power chamber 51 is kept away from the fixed annular guide slider 58 that extends right that is equipped with of left side wall of fixed block 52 axle center one side, guide slider 58 right-hand member face is equipped with opening right annular guide chute 59, guide chute 59 inside is equipped with gliding sliding block 60, sliding block 60 has the end to extend guide slider 58 right-hand member face, sliding block 60 right-hand member is fixed to be equipped with and to keep away from indicator 54 axle center one side extension twists reverse the piece 61, is located inside power chamber 51 the outer disc of indicator 54 is fixed and is equipped with torsion disc 56, twist disc 56 left end face with it is fixed to be equipped with torsion spring 57 to twist reverse between the piece 61 right-hand member face.

Beneficially, an air pressure conveying block 62 extending rightwards is fixedly arranged on one side, away from the axis of the guide sliding block 58, of the left wall surface of the power cavity 51, an air pressure storage cavity 63 is arranged inside the air pressure conveying block 62, a sliding plate 64 capable of sliding is hermetically arranged on the inner wall surface of the air pressure storage cavity 63, an annular guide rod 65 extending out of the upper end surface of the air pressure conveying block 62 is fixedly arranged on one side end surface of the sliding plate 64 in the clockwise direction, a poking plate 67 is fixedly arranged at one end of the annular guide rod 65 in the clockwise direction, the poking plate 67 is close to the upper end surface of the indicating rod 54 in one side and is abutted against the end surface of the twisting block 61 in the anticlockwise direction, and a return spring 66 is.

Advantageously, a pressure relief hole 68 is formed at one end of the pneumatic conveying block 62 in the counterclockwise direction and communicated with the pneumatic storage cavity 63, the pressure relief hole 68 plays a role of pressure relief protection, a dial 27 is fixedly arranged on the left wall surface of the calibration cavity 25, the right end of the indicating rod 54 penetrates through the right end surface of the dial 27, and a pointer 55 is fixedly arranged at the right end of the indicating rod 54.

Beneficially, a piston cavity 41 is disposed in the machine body 11 on the left side of the detection motor 24, a crankshaft 42 penetrating through left and right wall surfaces of the piston cavity 41 is dynamically connected to the left end surface of the detection motor 24, a piston 44 capable of sliding up and down is disposed on an inner wall surface of the piston cavity 41, a sealing plate 45 capable of being sealed is fixedly disposed on an inner wall surface of an upper end of the piston cavity 41, an upward extending connecting rod 43 is hinged to an outer circumferential surface of the crankshaft 42 located inside the piston cavity 41, and an upper end of the connecting rod 43 is hinged to a lower end surface of the piston 44.

Beneficially, the communicating holes 46 which are symmetrical left and right are communicated between the upper end face and the lower end face of the sealing plate 45, the air inlet pipe 48 is communicated between the upper end face of the sealing plate 45 which is symmetrical to the communicating hole 46 on the left side and the outside, the air outlet pipe 49 which extends upwards is fixedly arranged on the upper end face of the sealing plate 45 which corresponds to the communicating hole 46 on the right side, the upper end of the air outlet pipe 49 is communicated with the air distribution pipe 50, one end of the air distribution pipe 50 is communicated with the right wall face of the gas conveying cavity 28, and the other end of the air distribution pipe 50 is communicated with the wall face.

Advantageously, the inner wall of the gas delivery chamber 28 is provided with a communication valve 37 capable of sliding up and down, and a push link 39 is hinged between the upper end surface of the communication valve 37 and the lower end surface of the sealing rubber ring 34.

Beneficially, a locking head 14 capable of sliding left and right is arranged inside the electromagnet core cavity 13, an electromagnet core 15 is fixedly arranged on a side wall surface of the electromagnet core cavity 13 far away from the circle center of the sealing rubber ring 34, an electromagnet core 13 is far away from the side wall surface of the circle center of the sealing rubber ring 34 and at the same side, an electromagnet spring 69 is fixedly arranged between side end surfaces of the circle center of the sealing rubber ring 34 and the locking head 14 far away from the circle center of the sealing rubber ring, a linkage lead 16 is connected between the electromagnet core 15 and the locking trigger head 31 at the same side, a pull rope 18 extending out of the machine body 11 is fixedly arranged on the side end surface of the circle center of the sealing rubber ring 14 and the pull rope 18 located outside the machine body 11 is fixedly provided with a release.

Advantageously, an air inlet channel 21 is arranged between the lower end face of the connecting block 22 and the upper end face of the air pressure detection column 20, and the air inlet channel 21 can transmit air pressure to the air pressure detection disc 19.

The following describes in detail the use steps of a calibration apparatus for an air pressure detector with reference to fig. 1 to 5:

in the initial state, the locking head 14 is at one side far away from the circle center of the sealing rubber ring 34, the electromagnetic core 15 is in the power-on state, the trigger plate 32 and the sealing rubber ring 34 are at the upper limit position, the trigger plate 32 is separated from the locking trigger head 31, the communication valve 37 is at the upper limit position and seals the gas distribution pipe 50, the pointer 55 is at the horizontal position, the toggle plate 67 is at the horizontal position, and the electromagnetic spring 69 is at the compression state.

When the air pressure detection device works, the air pressure detection disc 19 is held, the air inlet channel 21 corresponds to the air vent 35, the connecting block 22 is pressed to seal the upper side of the rubber ring 34, the trigger plate 32 is pushed by the trigger rod 33 to compress the trigger spring 38 to move downwards, the trigger plate 32 is contacted with the locking trigger head 31 on the same side, the electromagnetic core 15 is controlled to be powered off by the linkage lead 16, the locking head 14 is pushed to move towards one side close to the rubber ring 34 under the elastic force of the electromagnetic spring 69, the locking head 14 locks the upper end surface of the connecting block 22, the air pressure detection disc 19 is prevented from moving upwards integrally and the air tightness of the connecting part can be enhanced, the connecting rod 39 is pushed to move downwards while the rubber ring 34 moves downwards, the air distribution pipe 50 communicated with the air conveying cavity 28 is opened, the detection motor 24 is driven at the moment, and the crankshaft 42 is driven to rotate, and further drives the connecting rod 43 to swing reciprocally, and further drives the piston 44 to reciprocate up and down, when the piston 44 moves down, the left check valve 47 is opened, the right check valve 47 is closed, and further external air is sucked into the piston cavity 41 through the left communication hole 46 and the air inlet pipe 48, when the piston 44 moves up, the left check valve 47 is closed, the right check valve 47 is opened, and further air in the piston cavity 41 is conveyed outwards through the right communication hole 46 and the air outlet pipe 49, and further gas is conveyed into the gas conveying cavity 28 through the gas distribution pipe 50, and further gas is conveyed into the gas pressure detection disc 19 through the corrugated pipe 36 and the vent hole 35, and further certain gas pressure is generated in the gas pressure detection disc 19, and meanwhile, the other end of the gas distribution pipe 50 conveys gas into the gas pressure storage cavity 63, and further pushes the sliding plate 64 to stretch the return spring 66 to rotate clockwise, and further push the poking plate, further, the twisting block 61 is shifted to drive the sliding block 60 to slide in the guiding chute 59, further the twisting block 61 drives the twisting disc 56 to rotate through the torsion spring 57, further the indicating rod 54 is driven to rotate, further the pointer 55 is driven to rotate, the air pressure indicated by the pointer 55 can be observed through the combination of the pointer 55 and the dial 27, through changing the power of the detection motor 24, further the air pressure in the air distribution pipe 50 changes, different pressure values are obtained through multiple tests, multiple groups of pressure values are compared, further whether the pressure of the air pressure detection disc 19 is in a normal value can be detected, when the air pressure in the air distribution pipe 50 is too large, the sliding plate 64 is positioned on the clockwise side of the pressure relief hole 68, further the air pressure in the air pressure storage cavity 63 is relieved through the pressure relief hole 68, further the equipment protection effect is achieved, after the pressure correction is completed, the driving detection motor 24 is informed, further, at this time, the torsion block 61 is rotated counterclockwise to be reset under the elastic force of the torsion spring 57, the sliding plate 64 is reset counterclockwise under the pulling force of the return spring 66, the pulling block 17 is released by pulling, the locking head 14 is further pulled by the pulling rope 18 to compress the electromagnetic spring 69 to move to the side away from the axis of the sealing rubber ring 34, the locking of the upper end surface of the connecting block 22 is further released, the trigger rod 33 and the trigger rod 33 are further pushed to move upward under the elastic force of the trigger spring 38, the sealing rubber ring 34 is further pushed to be reset, the trigger plate 32 is disconnected from the locking trigger head 31 at this time, the electromagnetic core 15 is further energized again, the locking head 14 is further in a reset state, and the communication valve 37 closes the gas distribution pipe 50 communicated with the gas delivery cavity 28 under the elastic force of the reset spring 40, so that the calibration of the gas pressure detector is.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an atmospheric pressure detector proofreading equipment, includes the organism, its characterized in that: the upper end face of the machine body is communicated with a connecting cavity with an upward opening, the left wall face and the right wall face of the upper side of the connecting cavity are communicated with electromagnet core cavities which are symmetrical to each other, a locking mechanism is arranged in each electromagnet core cavity, the lower wall face of the connecting cavity is communicated with a gas conveying cavity which extends downwards, trigger blocks which are symmetrical to each other are fixedly arranged on the lower wall face of the connecting cavity, a trigger cavity is arranged in each trigger block, a trigger plate which can slide up and down is arranged on the inner wall face of each trigger cavity, a trigger rod which extends upwards is fixedly arranged on the upper end face of each trigger plate, annular sealing rubber rings are fixedly arranged on the upper ends of the trigger rods on the left side and the right side of the trigger cavity, a locking trigger head is fixedly arranged on the lower wall face of each trigger cavity, a trigger spring is fixedly arranged between the lower wall face of each trigger plate on the same, the lower end face of the air pressure detection disc is fixedly provided with an air pressure detection column, the lower end face of the air pressure detection column is fixedly provided with a connecting block, the trigger plate and the locking trigger head can be controlled to work when contacting with each other, the lower end face of the connecting cavity corresponding to the air conveying cavity is fixedly provided with an upward extending corrugated pipe, the upper end of the corrugated pipe is fixedly connected with the lower end face of the sealing rubber ring, the right end face of the machine body is communicated with a calibration cavity with a right opening, the inner wall face of the calibration cavity is fixedly provided with a sealing cover plate capable of being sealed, the left side of the calibration cavity is internally provided with a power cavity, the left wall face of the power cavity is fixedly provided with a fixed block, the right end face of the fixed block is provided with a rotating cavity with a right opening, the left wall face of the rotating cavity is rotatably provided with an indicating rod extending to the interior of the calibration cavity, and the left wall, lead the slider right-hand member face and be equipped with the annular guide sliding groove of opening right, the inside gliding sliding block that is equipped with of guide sliding groove, the sliding block has the end to extend lead the slider right-hand member face, the sliding block right-hand member is fixed to be equipped with to keeping away from the piece that twists reverse that extension in instruction rod axle center one side is located the power intracavity portion the outer disc of instruction rod is fixed and is equipped with the torsion disc, twist reverse the disc left end face with it is fixed with torsion spring to twist reverse between the piece right-hand member face.

2. The air pressure detector calibration device of claim 1, wherein: the left wall surface of the power cavity is far away from one side of the axis of the guide sliding block, an air pressure conveying block extending rightwards is fixedly arranged, an air pressure storage cavity is arranged inside the air pressure conveying block, a sliding plate capable of sliding is arranged on the inner wall surface of the air pressure storage cavity in a sealing mode, an annular guide rod extending out of the upper end surface of the air pressure conveying block is fixedly arranged on one side end surface of the sliding plate in a clockwise mode, a poking plate is fixedly arranged at one end of the annular guide rod in the clockwise mode and close to the upper end surface of one side of the indicating rod and the end surface of one side of the twisting block in the anticlockwise mode in butt joint with each.

3. An air pressure detector calibration device as claimed in claim 2, wherein: the device is characterized in that a pressure relief hole is formed in one counterclockwise end of the air pressure conveying block and the air pressure storage cavity in a communicated mode, the pressure relief hole plays a pressure relief protection role, a dial is fixedly arranged on the left wall surface of the correction cavity, the right end of the indicating rod penetrates through the right end face of the dial, and a pointer is fixedly arranged at the right end of the indicating rod.

4. The air pressure detector calibration device of claim 1, wherein: the detecting motor is characterized in that a piston cavity is arranged in the machine body on the left side of the detecting motor, a crankshaft penetrating through the left wall surface and the right wall surface of the piston cavity is in power connection with the left end surface of the detecting motor, a piston capable of sliding up and down is arranged on the inner wall surface of the piston cavity, a sealing plate capable of being sealed is fixedly arranged on the inner wall surface of the upper end of the piston cavity, a connecting rod extending upwards is hinged to the outer circular surface of the crankshaft and located in the piston cavity, and the upper end of the connecting rod.

5. The air pressure detector calibration device of claim 4, wherein: the gas storage device is characterized in that bilaterally symmetrical communicating holes are formed in the upper end face and the lower end face of the sealing plate in a communicated mode, the communicating holes are symmetrical to the left side, an air inlet pipe is arranged between the upper end face of the sealing plate and the outside in a communicated mode, an air outlet pipe extending upwards is fixedly arranged on the upper end face of the sealing plate corresponding to the right side of the communicating holes, a gas distributing pipe is arranged at the upper end of the air outlet pipe in a communicated mode, one end of the gas distributing pipe is communicated with the right wall face of the gas conveying cavity.

6. The air pressure detector calibration device of claim 1, wherein: the inner wall surface of the gas conveying cavity is provided with a communicating valve capable of sliding up and down, and a pushing connecting rod is hinged between the upper end surface of the communicating valve and the lower end surface of the sealing rubber ring.

7. The air pressure detector calibration device of claim 1, wherein: the utility model discloses a portable electronic device, including the sealed rubber ring centre of a circle side wall, the sealed rubber ring centre of a circle side wall is fixed and is equipped with electromagnetic core, the sealed rubber ring centre of a circle side wall is kept away from with the homonymy in the electro-magnet core chamber is kept away from the fixed electromagnetic core that is equipped with of sealed rubber ring centre of a circle side wall, the electro-magnet core chamber is kept away from sealed rubber ring centre of a circle side wall and homonymy the locking head is kept away from fixedly between the sealed rubber ring centre of a circle side end face be equipped with extend the stay cord of organism is located the organism outside the stay cord is fixed to be equipped with and removes.

8. The air pressure detector calibration device of claim 1, wherein: the connecting block lower end face and the upper end face of the air pressure detection column are communicated with each other to form an air inlet channel, and the air inlet channel can transmit air pressure to the air pressure detection disc.