CN220437656U - Online calibrating device of vacuum gauge - Google Patents
Online calibrating device of vacuum gauge Download PDFInfo
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- CN220437656U CN220437656U CN202322271817.XU CN202322271817U CN220437656U CN 220437656 U CN220437656 U CN 220437656U CN 202322271817 U CN202322271817 U CN 202322271817U CN 220437656 U CN220437656 U CN 220437656U
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- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 8
- 235000017491 Bambusa tulda Nutrition 0.000 description 8
- 241001330002 Bambuseae Species 0.000 description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 8
- 239000011425 bamboo Substances 0.000 description 8
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an online calibrating device of a vacuum gauge, which comprises the vacuum gauge, wherein a fixed cylinder is fixedly sleeved on the outer periphery side of a detection head of the vacuum gauge, a plugging mechanism is arranged in the fixed cylinder, and the plugging mechanism performs plugging operation on an opening at the bottom end of the fixed cylinder. The utility model relates to the technical field of vacuum gauge online calibration devices. According to the utility model, in the use process of the vacuum gauge, a closed space is formed at the outer peripheral side of the vacuum gauge detection head through the mutual matching of the fixed cylinder, the plugging mechanism and the adjusting mechanism without disassembling the vacuum gauge, so that the calibration operation of the vacuum gauge is normally carried out, the vacuum gauge is not required to be disassembled when the vacuum gauge is calibrated, the on-line calibration operation is directly carried out, the device has a simple structure and convenient operation, the calibration operation of the existing vacuum gauge is hardly changed, and the device is easy to operate.
Description
Technical Field
The utility model relates to the technical field of vacuum gauge online calibration devices, in particular to an online vacuum gauge calibration device.
Background
Vacuum gauges, also known as vacuum gauges, are instruments for measuring vacuum or air pressure, and are commonly used in scientific research and industrial production by measuring air pressure using the change of certain physical effects of air under different air pressures.
The vacuum gauge is various in types, wherein the calibration of the Pirani vacuum machine TTRO 1R needs to be conducted with a TTR 91R power supply, the vacuum gauge is guaranteed to run for more than ten minutes under the atmospheric pressure, the LED lamp is guaranteed to be always on, but after the vacuum gauge is installed, the air pressure of the detection position of the detection head of the vacuum gauge is always uncertain, so that the vacuum gauge can be detected only by detaching the vacuum gauge from the device during the calibration, the vacuum gauge is very troublesome, and the vacuum gauge is possibly damaged due to multiple detachment or the damage of a connecting piece of the vacuum machine, so that the use of the vacuum machine is affected.
Disclosure of Invention
In view of the shortcomings of the prior art, an object of the present utility model is to provide an on-line calibration device for a vacuum gauge, so as to solve the problems set forth in the background art.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides an online calibrating device of vacuum gauge, includes the vacuum gauge, the fixed cover in periphery side of vacuum gauge detection head is equipped with fixed section of thick bamboo, be equipped with shutoff mechanism in the fixed section of thick bamboo, and shutoff mechanism carries out fixed section of thick bamboo bottom open-ended shutoff operation, the periphery side of fixed section of thick bamboo is equipped with adjustment mechanism, and adjustment mechanism adjusts atmospheric pressure in the fixed section of thick bamboo.
The present utility model may be further configured in a preferred example to: the plugging mechanism comprises a push plate, the push plate is slidably arranged in a fixed cylinder, a sealing ring is arranged on the outer peripheral side of the push plate, and a plurality of diversion holes are relatively formed in the wall of the fixed cylinder.
Through adopting above-mentioned technical scheme, the setting in water conservancy diversion hole makes the push pedal behind removing specific position, and the gaseous flow in fixed section of thick bamboo that can cross the push pedal of push pedal both sides, avoids the setting of push pedal to influence the use of vacuum gauge.
The present utility model may be further configured in a preferred example to: a plurality of storage tanks are correspondingly arranged on the inner wall of the fixed barrel, the storage tanks are positioned at the top ends of the diversion holes, soft blocks which are hemispherical are arranged in the storage tanks in a penetrating manner, the side walls of the soft blocks are fixedly connected with the inner walls of the corresponding storage tanks, honeycomb holes are arranged in the soft blocks, a valve is arranged in an opening at the bottom end of the fixed barrel, and a supporting rod is fixedly arranged at the position, corresponding to the middle of the diversion holes, in the fixed barrel.
Through adopting above-mentioned technical scheme, the soft piece that has seted up cellular hole inside can carry out the flexible of bigger degree, and the setting of soft piece can carry out the support spacing of specific strength to the backup pad, has made things convenient for the pressure adjustment in the fixed section of thick bamboo.
The present utility model may be further configured in a preferred example to: the adjusting mechanism comprises a piston cylinder, the piston cylinder is fixedly arranged on the peripheral wall of the fixed cylinder, the inside of the piston cylinder is communicated with the inside of the fixed cylinder through a connecting pipe, a piston plate is slidably arranged in the piston cylinder, a push rod is slidably arranged at the center position of the bottom of the piston cylinder, one end of the push rod, which is positioned in the piston cylinder, is fixedly connected with the piston plate, a plurality of through holes are formed in the bottom of the piston cylinder relatively, a one-way valve is fixedly arranged at the bottom end of the piston cylinder in a penetrating manner, and the inside of the one-way valve is communicated with the inside of the piston cylinder.
Through adopting above-mentioned technical scheme, the setting of through-hole makes the gas in the piston cylinder bottom can be discharged by the piston cylinder along with the removal of piston plate for the air in the piston cylinder can not influence the removal of piston plate, and the setting of check valve has guaranteed the gas content in the piston cylinder.
The present utility model may be further configured in a preferred example to: the outer peripheral wall of the push rod is provided with a plurality of positioning grooves with semicircular cross sections, the cylinder wall of the piston cylinder is provided with rectangular grooves at positions corresponding to the positioning grooves, elastic strips penetrate through the rectangular grooves, one ends of the elastic strips, which are positioned outside the corresponding rectangular grooves, are connected with the push rod, and the two ends of the elastic strips are fixedly connected with the inner walls of the corresponding rectangular grooves.
Through adopting above-mentioned technical scheme, setting up of constant head tank and elastic strip can retrain spacingly to the push rod for the piston plate is located the position that the piston is in the cylinder and keeps stable.
In summary, the utility model has the following beneficial technical effects:
1. in the use of vacuum gauge, can be under the condition of not dismantling the vacuum gauge, through the mutually supporting of fixed section of thick bamboo, shutoff mechanism and adjustment mechanism, form a enclosure space at the periphery side of vacuum gauge detection head, and the pressure in the enclosure space is the same with external atmospheric pressure, thereby normally carry out the calibration operation of vacuum gauge, this carry out the vacuum gauge need not carry out the dismantlement of vacuum gauge when carrying out the calibration, directly carry out on-line calibration operation, and device simple structure convenient operation can not change the calibration operation of current vacuum gauge almost, the device top is easy.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic view showing the internal structure of a part of the fixing barrel of the present embodiment;
fig. 3 is an enlarged schematic view of the structure at a in fig. 2 of the present embodiment;
fig. 4 is an enlarged schematic view of the structure at B in fig. 2 of the present embodiment.
In the figure, 1, a vacuum gauge; 2. a fixed cylinder; 3. a plugging mechanism; 31. a push plate; 32. a seal ring; 33. a deflector aperture; 34. a storage tank; 35. a soft mass; 36. a valve; 37. a support rod; 4. an adjusting mechanism; 41. a piston cylinder; 42. a connecting pipe; 43. a piston plate; 44. a push rod; 45. a through hole; 46. a one-way valve; 47. a positioning groove; 48. rectangular grooves; 49. an elastic strip.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Examples:
referring to fig. 1-4, the on-line calibration device of the vacuum gauge 1 disclosed by the utility model comprises a vacuum gauge 1, wherein a fixed cylinder 2 is fixedly sleeved on the outer periphery side of a detection head of the vacuum gauge 1, the bottom side of the detection head of the vacuum gauge is positioned on the same plane with the inner top side of the fixed cylinder 2, a plugging mechanism 3 is arranged in the fixed cylinder 2, and the plugging mechanism 3 performs plugging operation on the bottom end opening of the fixed cylinder 2. The plugging mechanism 3 comprises a push plate 31, the push plate 31 is slidably arranged in a fixed cylinder 2, a sealing ring 32 for plugging a gap between the push plate 31 and the inner wall of the fixed cylinder 2 is arranged on the outer peripheral side of the push plate 31, a plurality of diversion holes 33 are oppositely formed in the wall of the fixed cylinder 2, a plurality of storage grooves 34 are oppositely formed in the inner wall of the fixed cylinder 2, the storage grooves 34 are positioned at the top ends of the diversion holes 33, soft blocks 35 which are hemispherical in shape are arranged in the storage grooves 34 in a penetrating manner, the side walls of the soft blocks 35 are fixedly connected with the inner walls of the corresponding storage grooves 34, the soft blocks 35 are rubber blocks, honeycomb holes are formed in the soft blocks 35, a valve 36 is arranged in an opening at the bottom end of the fixed cylinder 2, a supporting rod 37 is fixedly arranged at the position in the middle of the corresponding diversion holes 33 in the fixed cylinder 2, and the top side of the supporting rod 37 is a plane. After the push plate 31 moves to a specific position, the air at two sides of the push plate 31 can flow in the fixed cylinder 2 beyond the push plate 31, the soft block 35 with the honeycomb holes can stretch and retract to a greater extent, and the soft block 35 can support and limit the support plate with specific strength.
An adjusting mechanism 4 is provided on the outer peripheral side of the fixed cylinder 2, and the adjusting mechanism 4 adjusts the air pressure in the fixed cylinder 2. The adjusting mechanism 4 comprises a piston cylinder 41, the piston cylinder 41 is fixedly arranged on the outer peripheral wall of the fixed cylinder 2, the interior of the piston cylinder 41 is communicated with the interior of the fixed cylinder 2 through a connecting pipe 42, a piston plate 43 is arranged in the piston cylinder 41 in a sliding manner, a push rod 44 is arranged in the center position of the bottom of the piston cylinder 41 in a sliding manner, one end of the push rod 44 positioned in the piston cylinder 41 is fixedly connected with the piston plate 43, a plurality of through holes 45 are formed in the bottom of the piston cylinder 41 relatively, a one-way valve 46 is fixedly arranged at the bottom end of the piston cylinder 41 in a penetrating manner, the interior of the one-way valve 46 is communicated with the interior of the piston cylinder 41, a plurality of positioning grooves 47 with semicircular cross sections are formed in the outer peripheral wall of the push rod 44 relatively, rectangular grooves 48 are formed in the positions of the cylinder walls of the piston cylinder 41 corresponding to the positioning grooves 47, elastic strips 49 are arranged in the rectangular grooves 48 in a penetrating manner, one ends of the elastic strips 49 positioned outside the corresponding rectangular grooves 48 are fixedly connected with the push rod 44, and two ends of the elastic strips 49 are made of metal materials such as spring steel or elastic alloy. The arrangement of the through hole 45 enables the gas in the bottom of the piston cylinder 41 to be discharged from the piston cylinder 41 along with the movement of the piston plate 43, so that the air in the piston cylinder 41 cannot influence the movement of the piston plate 43, the arrangement of the one-way valve 46 ensures the amount of sucked gas in the piston cylinder 41, and the arrangement of the positioning groove 47 and the elastic strip 49 can limit the push rod 44.
The implementation principle of the embodiment is as follows: in the use process of the vacuum gauge 1, firstly, an operator closes the valve 36, then pulls the piston plate 43 towards the direction of the through hole 45 through the pull rod, and as the space on one side of the piston plate 43 is enlarged, the air in the fixed cylinder 2 is sucked into the connecting pipe 42, so that the top of the fixed cylinder 2 forms a negative pressure state, and the push plate 31 is pulled upwards through the negative pressure on the top of the fixed cylinder 2 until the push plate 31 is in contact with the inner top side of the fixed cylinder 2, and then the push plate 31 stops moving upwards;
when the piston plate 43 moves in the direction of the through hole 45, the gas on the other side of the piston plate 43 is automatically discharged from the piston cylinder 41 through the through hole 45, and the movement of the piston cylinder 41 is not affected;
after the piston plate 43 and the inner bottom side of the piston cylinder 41 are mutually abutted, the piston plate 43 stops moving, and at this time, the air pressure in the fixed cylinder 2 is smaller than the external air pressure, the external air can flow into the fixed cylinder 2 through the one-way valve 46, so that the air pressure in the fixed cylinder 2 is the same as the external air pressure, then the operator pushes the push rod 44 into the piston cylinder 41 until the piston plate 43 is connected with the inner wall of the piston cylinder 41, and the air in the piston cylinder 41 is pushed into the fixed pipe through the connecting pipe 42, the air entering the fixed pipe pushes the push plate 31 downwards after forming a certain pressure, so that the push plate 31 moves downwards, after the push plate 31 contacts with the soft block 35, the push plate 31 does not continue to move downwards due to the mutual abutting of the soft block 35 and the push plate 31, then the operator pulls the push rod 44 outwards according to the above, after the elastic strip 49 corresponds to the positioning groove 47, the elastic strip 49 deforms and resets, so that the middle position of the elastic strip 49 extends out of the rectangular groove 48 and is inserted into the positioning groove 47, at this time, the elastic strip 49 is mutually abutted against the inner wall of the positioning groove 47, the push rod 44 can be restrained and limited to a certain extent, when the operator pulls the push rod 44 by hand, certain resistance is felt, at this time, the push rod 44 is stopped being pulled, meanwhile, due to the movement of the piston plate 43, part of air in the fixed cylinder 2 is sucked into the piston cylinder 41 again, the air pressure in the fixed cylinder 2 is reduced, so that the pressure above the push plate 31 is the same as the external environment, at this time, the operator can calibrate the vacuum gauge 1 according to the calibration operation of the existing vacuum gauge 1;
when the vacuum machine is used, air is sucked from the fixed cylinder 2 along with the loss of the air in the detection space, so that the bottom of the fixed cylinder 2 forms a negative pressure state, the push plate 31 is pulled downwards through the negative pressure at the bottom of the fixed cylinder 2, the interference force between the push plate 31 and the soft block 35 is gradually increased, after the interference force between the cambered surface of the push plate 31 and the cambered surface of the soft block 35 reaches a threshold value, the soft block 35 deforms and contracts into the storage tank 34, the constraint limit of the push plate 31 is automatically released, the push plate 31 moves downwards to the middle position of the guide hole 33, and air exchange is generated between the top of the fixed cylinder 2 and the bottom of the fixed cylinder 2, so that the fixed cylinder 2 and the detection space have the same negative pressure;
it should be noted that, along with the downward movement of the push plate 31, after the supporting rod 37 and the push plate 31 are in mutual interference, the push plate 31 will not move downward continuously, so that the push plate 31 will not move below the diversion trench, and along with the negative pressure state in the fixed cylinder 2, the gas in the piston cylinder 41 can be sucked into the fixed cylinder 2 through the connecting pipe 42, so that the negative pressure state is formed in the piston cylinder 41, and the piston plate 43 is pulled towards the connecting pipe 42 until the piston plate 43 and the inner wall of the piston cylinder 41 are in mutual interference;
it should be noted that, in the process of the elastic strip 49 abutting against the inner wall of the positioning slot 47, if a strong abutting force exists between the inner wall of the elastic strip 49 and the inner wall of the positioning slot 47, the elastic strip 49 may be automatically pushed into the rectangular slot 48, so as to automatically release the constraint and limit state of the push rod 44.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (5)
1. The utility model provides an online calibrating device of vacuum gauge, includes vacuum gauge (1), its characterized in that: the vacuum gauge is characterized in that a fixed cylinder (2) is fixedly sleeved on the outer periphery side of the detection head of the vacuum gauge (1), a plugging mechanism (3) is arranged in the fixed cylinder (2), the plugging mechanism (3) is used for plugging the bottom end opening of the fixed cylinder (2), an adjusting mechanism (4) is arranged on the outer periphery side of the fixed cylinder (2), and the adjusting mechanism (4) is used for adjusting the air pressure in the fixed cylinder (2).
2. The vacuum gauge on-line calibration device of claim 1, wherein: the plugging mechanism (3) comprises a push plate (31), the push plate (31) is slidably arranged in the fixed cylinder (2), a sealing ring (32) is arranged on the outer periphery side of the push plate (31), and a plurality of diversion holes (33) are relatively formed in the cylinder wall of the fixed cylinder (2).
3. The vacuum gauge on-line calibration device of claim 2, wherein: a plurality of storage tanks (34) are relatively arranged on the inner wall of the fixed barrel (2), the storage tanks (34) are positioned at the top ends of the diversion holes (33), soft blocks (35) which are hemispherical in shape are arranged in the storage tanks (34) in a penetrating mode, the side walls of the soft blocks (35) are fixedly connected with the inner wall of the corresponding storage tank (34), honeycomb holes are formed in the soft blocks (35), a valve (36) is arranged in an opening at the bottom end of the fixed barrel (2), and a supporting rod (37) is fixedly arranged at the position, corresponding to the middle of the diversion holes (33), in the fixed barrel (2).
4. A vacuum gauge on-line calibration device according to claim 3, wherein: the regulating mechanism (4) comprises a piston cylinder (41), the piston cylinder (41) is fixedly arranged on the peripheral wall of the fixed cylinder (2), the inside of the piston cylinder (41) is communicated with the inside of the fixed cylinder (2) through a connecting pipe (42), a piston plate (43) is slidably arranged in the piston cylinder (41), a push rod (44) is slidably arranged at the central position of the cylinder bottom of the piston cylinder (41), one end of the push rod (44) positioned in the piston cylinder (41) is fixedly connected with the piston plate (43), a plurality of through holes (45) are formed in the cylinder bottom of the piston cylinder (41) relatively, a one-way valve (46) is fixedly arranged at the bottom end of the piston cylinder (41) in a penetrating mode, and the inside of the one-way valve (46) is communicated with the inside of the piston cylinder (41).
5. The on-line vacuum gauge calibrating device according to claim 4, wherein: the outer peripheral wall of the push rod (44) is provided with a plurality of positioning grooves (47) with semicircular cross sections, the cylinder wall of the piston cylinder (41) is provided with rectangular grooves (48) corresponding to the positioning grooves (47), elastic strips (49) are arranged in the rectangular grooves (48) in a penetrating mode, one ends of the elastic strips (49) located outside the corresponding rectangular grooves (48) are connected with the push rod (44), and two ends of the elastic strips (49) are fixedly connected with the inner walls of the corresponding rectangular grooves (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322271817.XU CN220437656U (en) | 2023-08-23 | 2023-08-23 | Online calibrating device of vacuum gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322271817.XU CN220437656U (en) | 2023-08-23 | 2023-08-23 | Online calibrating device of vacuum gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220437656U true CN220437656U (en) | 2024-02-02 |
Family
ID=89703232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322271817.XU Active CN220437656U (en) | 2023-08-23 | 2023-08-23 | Online calibrating device of vacuum gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220437656U (en) |
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2023
- 2023-08-23 CN CN202322271817.XU patent/CN220437656U/en active Active
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