CN209606015U - A kind of prefastening self-sealing pressure tapping - Google Patents
A kind of prefastening self-sealing pressure tapping Download PDFInfo
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- CN209606015U CN209606015U CN201920593104.6U CN201920593104U CN209606015U CN 209606015 U CN209606015 U CN 209606015U CN 201920593104 U CN201920593104 U CN 201920593104U CN 209606015 U CN209606015 U CN 209606015U
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- rubber gasket
- sealing
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Abstract
The utility model discloses a kind of prefastening self-sealing pressure tappings, including tubular body, prefastening self-sealing mechanism and adapter, tubular body uses up big and down small step-like tube body, it is set to the first bobbin of lower part and second bobbin on top, the external screw thread of first bobbin be used for dock on pressure meter calibration stand to interface, air flow chamber is equipped in first bobbin and the second bobbin, air flow chamber is in three incremental from the bottom to top step structures, the inner upper end of second bobbin is radially equipped with flange, and the lower end surface of flange is in smooth arc shape；Prefastening self-sealing mechanism includes compressed spring and rubber gasket, and rubber gasket disc-shaped spherical in shape, equipped with venthole, the upper surface edge of rubber gasket is connect with flange lower end surface gluing, sealing at center；Adapter is cylindrical in shape, and adapter inner diameter hole is in the two stage steps shape reduced from top to bottom, and lower step and the outer periphery threads of the second bobbin are spirally connected, and the inner thread of upper step is for connecting pressure gauge connection.
Description
Technical field
The utility model relates to hydraulic connectors monitoring technology fields more particularly to a kind of prefastening self-sealing pressure gauge to connect
Head.
Background technique
Pressure gauge has very extensive application in the every field of production, life.According to the relevant regulations of country, pressure
It must periodically be examined and determine in table use, to ensure its accuracy.In general, being needed when calibrating by master gauge and accredited
Pressure gauge is mounted on pressure meter calibration stand and (is usually threadedly coupled) simultaneously, is then forced into using checking table and needs to examine and determine
Pressure value, master gauge is compared with the indicating value of tested pressure gauge, to complete the calibration operation of pressure gauge.Due to
Always pressure is had in verification process, therefore, to complete the calibrating of pressure gauge it is necessary that master gauge, tested pressure gauge
The leakproofness being connect with pressure calibration.
Currently, most of pressure calibrations are the sealings for ensuring to connect with pressure gauge by installing gasket or sealing ring additional
Property, this connection needs firmly to tighten pressure gauge, or even need firmly to tighten using tools such as plank or pipe wrench just can guarantee it is close
Feng Xing brings big inconvenience to user；And rundown process firmly also easily causes the damage of gasket or sealing ring repeatedly
It is bad, affect the working efficiency of existing equipment.
Utility model content
The purpose of the utility model is to provide a kind of prefastening self-sealing pressure tappings, can be easily by pressure gauge spiral shell
It is connected on pressure meter calibration stand, it is easy to operate, time saving and energy saving.
The technical solution adopted in the utility model are as follows:
A kind of prefastening self-sealing pressure tapping, including tubular body, prefastening self-sealing mechanism and adapter, it is described
Tubular body use up big and down small step-like tube body, be set to the first bobbin of lower part and second bobbin on top, the
Screw thread is equipped with the periphery of one bobbin and the second bobbin, the external screw thread of the first bobbin is used to dock pair on pressure meter calibration stand
It is equipped with air flow chamber in interface, the first bobbin and the second bobbin, air flow chamber is located at the in three incremental from the bottom to top step structures
One bobbin center is first step channel, is second step channel and third step channel in the second bobbin；Second
The inner upper end of bobbin is radially equipped with flange, and the lower end surface of flange is in smooth arc shape；The prefastening self-sealing mechanism packet
Include compressed spring and rubber gasket, compressed spring is mounted vertically in second step channel, compressed spring periphery with second
Rank vias inner walls, which squeeze, fixes, and compressed spring top and rubber gasket lower end surface contradict；The rubber gasket is spherical in shape
Disc-shaped, center are equipped with venthole, and the upper surface edge of rubber gasket is connect with flange lower end surface gluing, sealing；The rank
Connector is cylindrical in shape, and adapter inner diameter hole is in the two stage steps shape reduced from top to bottom, and the inner wall of corresponding every stage rank is respectively equipped with
Screw thread, lower step and the outer periphery threads of the second bobbin are spirally connected, and the inner thread of upper step is for connecting pressure gauge connection.
The peripheral lower part of second bobbin is equipped with plank clamping part.
The rubber gasket, which uses, fills fluorubber diaphragm seal.
The first step channel, second step channel, third step channel, venthole and inner diameter hole center same
On one axis.
Anti-skidding annular knurl is equipped with the adapter periphery week.
The utility model is mainly used for for pressure gauge spiral shell being connected on pressure meter calibration stand, and adapter is used for the pressure gauge that is spirally connected,
The external screw thread of first bobbin be used for dock on pressure meter calibration stand to interface.By rubber gasket in the effect of being under pressure
Under, the edge of rubber gasket is bonded with the flange seal that the inner upper end of the second bobbin is radially equipped with, to form preload
State.The present apparatus is radially equipped with flange in the inner upper end of the second bobbin, and the lower end surface of flange is in smooth arc shape, smooth arc shape
It is consistent with rubber gasket radian, when rubber gasket is squeezed by air blast, application connection can be sealed, on the one hand
Good sealing effect is played, the service life of rubber gasket is on the other hand extended.
When pressure gauge is docked with adapter, the lower end surface of pressure gauge and rubber gasket upper surface are contradicted, air-flow into
When entering second step channel and third step channel, when rubber gasket is by stream pressure, protrusion by a small margin is carried out upwards,
While raised, Pre strained state on the one hand is formed with flange, is on the one hand formed and is sealed with the lower end surface of pressure gauge, stream pressure zero
Leakage enters pressure gauge, completes pressurising.
Similarly, at the end of calibration or detection, pressure disappears, and rubber gasket sets back, only by compression bullet
The support that spring is given, compressed spring are used for positioning rubber diaphragm seal, guarantee the height and position of rubber gasket.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of the utility model；
Fig. 3 is the portion the A enlarged drawing in Fig. 2 of the utility model.
Specific embodiment
As depicted in figs. 1 and 2, the utility model includes tubular body, prefastening self-sealing mechanism and adapter 11, described
Tubular body use up big and down small step-like tube body, be set to the first bobbin 1 of lower part and second bobbin 2 on top,
Screw thread is equipped with the periphery of first bobbin 1 and the second bobbin 2, the external screw thread of the first bobbin 1 is for docking pressure meter calibration stand
On to interface, be equipped with air flow chamber in the first bobbin 1 and the second bobbin 2, air flow chamber is in three incremental from the bottom to top ladder-like knots
Structure is first step channel 3 positioned at 1 center of the first bobbin, is second step channel 4 and third in the second bobbin 2
Step channel 5；As shown in figure 3, the inner upper end of the second bobbin 2 is radially equipped with flange 6, the lower end surface of flange 6 is in smooth arc
Shape.The peripheral lower part of second bobbin 2 is equipped with plank clamping part 7.The first step channel 3, second step channel
4, the center of third step channel 5, venthole 10 and inner diameter hole is on the same axis.
The prefastening self-sealing mechanism includes compressed spring 8 and rubber gasket 9, and compressed spring 8 is mounted vertically in
In second step channel 4,8 periphery of compressed spring is squeezed with 4 inner wall of second step channel to be fixed, 8 top of compressed spring and rubber
9 lower end surface of diaphragm seal contradicts.
The disc-shaped spherical in shape of rubber gasket 9, center are equipped with venthole 10, and rubber gasket 9, which uses, fills fluorine rubber
Glue diaphragm seal 9.The upper surface edge of rubber gasket 9 is connect with 6 lower end surface gluing, sealing of flange.
The adapter 11 is cylindrical in shape, and 11 inner diameter hole of adapter is in the two stage steps shape reduced from top to bottom, corresponding every
The inner wall of stage rank is respectively equipped with screw thread, and lower step and the outer periphery threads of the second bobbin 2 are spirally connected, the inner thread of upper step
For connecting pressure gauge connection.Adapter is equipped with anti-skidding annular knurl 12 with 11 periphery week.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The device is mainly used for pressure gauge spiral shell to be connected on pressure meter calibration stand, adapter 11 is used for the pressure gauge that is spirally connected, the
The external screw thread of one bobbin 1 be used for dock on pressure meter calibration stand to interface.Firstly, first by the lower end of pressure gauge and adapter 11
The internal screw thread of upper end is spirally connected.Later by the first bobbin 1 of the present apparatus in being docked to interface on pressure meter calibration stand.It is being pressed
Power detection or calibration when, carry out pressure supplement with money, air-flow by entering first step channel 3 to interface on pressure meter calibration stand,
The diameter in first step channel 3 is smaller, convenient for keeping stream pressure to be then full of rapidly and fill second step channel 4 and third step
Channel 5, simultaneously as the barrier effect of rubber gasket 9, air-flow presses to the lower end surface of rubber gasket 9, rubber gasket
9 is upward under pressure, so that the inner upper end of the edge of rubber gasket 9 and the second bobbin 2 was radially equipped with
6 palette of flange, to form Pre strained state.Wherein, for rubber gasket 9 using fluorubber diaphragm seal 9 is filled, filling fluorubber can
With oil resistant, increase toughness；And the disc-shaped spherical in shape of rubber gasket 9, it is therefore an objective to reduce air blast bring pressure, also, circle
Sheet rubber diaphragm seal is face sealing, and for ring type seal, sealing effect is good, and it is small to be damaged probability.
Also, the present apparatus is radially equipped with flange 6 in the inner upper end of the second bobbin 2, and the lower end surface of flange 6 is in smooth arc
Shape, smooth arc shape are consistent with 9 radian of rubber gasket, when rubber gasket 9 is squeezed by air blast, can be sealed deposited
On the one hand patch connection plays good sealing effect, on the other hand extends the service life of rubber gasket 9.Because existing
Flange 6 be it is planar, when rubber gasket 9 is squeezed and contradicts with flange 6, be easy strong pressure by 6 corner angle of flange,
It is easy to be hurt, what is more, be cut off.
Later, air-flow is entered the import of pressure gauge by the venthole 10 that 9 center of rubber gasket is equipped with.In pressure gauge and rank
When connector 11 docks, the lower end surface and 9 upper surface of rubber gasket of pressure gauge are contradicted, and enter 4 He of second step channel in air-flow
When third step channel 5, when rubber gasket 9 is by stream pressure, protrusion by a small margin, while raised, one are carried out upwards
Aspect and flange 6 form Pre strained state, are on the one hand formed and are sealed with the lower end surface of pressure gauge, and stream pressure zero leakage enters pressure
Power table completes pressurising.
Similarly, at the end of calibration or detection, pressure disappears, and rubber gasket 9 sets back, only by compression bullet
The support that spring 8 is given, compressed spring 8 are used for positioning rubber diaphragm seal 9, guarantee the height and position of rubber gasket 9, so that rubber
Diaphragm seal 9 is being docked with the sealing of the lower end surface of flange 6 and pressure gauge rapidly by the pressure of air blast rapidly.
Optimization, the caliber size of the present apparatus can be formulated according to the specification of pressure gauge, not have to specification to meet
Manometer calibration.
Preferably, it is equipped with anti-skidding annular knurl 12 with the 11 periphery week of adapter of the present apparatus, screws connector convenient for operator,
It is easy for installation, quick.
Preferably, the peripheral lower part of the second bobbin 2 of the present apparatus is equipped with plank clamping part 7, uses pliers convenient for operator
External force is carried out, installation more fastens.Finally, it should be noted that above embodiments are only to illustrate the technology of the utility model
Scheme, rather than its limitations；Although the present invention has been described in detail with reference to the aforementioned embodiments, this field is general
Logical technical staff is it is understood that it can still modify to technical solution documented by previous embodiment, or to wherein
Some or all of technical characteristic is equivalently replaced；And these are modified or replaceed, and do not make the essence of corresponding technical solution
It is detached from the range of the utility model embodiment technical solution.
Claims (5)
1. a kind of prefastening self-sealing pressure tapping, it is characterised in that: including tubular body, prefastening self-sealing mechanism and rank
Connector, the tubular body use up big and down small step-like tube body, be set to lower part the first bobbin and top the
Screw thread is equipped with the periphery of two bobbins, the first bobbin and the second bobbin, the external screw thread of the first bobbin is for docking pressure gauge school
Test on platform to interface, air flow chamber is equipped in the first bobbin and the second bobbin, air flow chamber is ladder-like in incremental from the bottom to top three
Structure is first step channel positioned at the first bobbin center, is second step channel and third platform in the second bobbin
Rank channel；The inner upper end of second bobbin is radially equipped with flange, and the lower end surface of flange is in smooth arc shape；The prefastening is certainly
Sealing mechanism includes compressed spring and rubber gasket, and compressed spring is mounted vertically in second step channel, outside compressed spring
It encloses to squeeze with second step vias inner walls and fix, compressed spring top and rubber gasket lower end surface contradict；The rubber is close
Mounting disc-shaped spherical in shape, center are equipped with venthole, and the upper surface edge and flange lower end surface gluing, sealing of rubber gasket connect
It connects；The adapter is cylindrical in shape, and adapter inner diameter hole is in the two stage steps shape reduced from top to bottom, corresponds to the interior of every stage rank
Wall is respectively equipped with screw thread, and lower step and the outer periphery threads of the second bobbin are spirally connected, and the inner thread of upper step is for connecting pressure
Power table interface.
2. prefastening self-sealing pressure tapping according to claim 1, it is characterised in that: outside second bobbin
Lower part is enclosed equipped with plank clamping part.
3. prefastening self-sealing pressure tapping according to claim 2, it is characterised in that: the rubber gasket is adopted
With filling fluorubber diaphragm seal.
4. prefastening self-sealing pressure tapping according to claim 1, it is characterised in that: the first step is logical
Road, second step channel, third step channel, venthole and inner diameter hole center on the same axis.
5. prefastening self-sealing pressure tapping according to claim 1, it is characterised in that: the adapter periphery week
It is equipped with anti-skidding annular knurl with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593104.6U CN209606015U (en) | 2019-04-28 | 2019-04-28 | A kind of prefastening self-sealing pressure tapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593104.6U CN209606015U (en) | 2019-04-28 | 2019-04-28 | A kind of prefastening self-sealing pressure tapping |
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| Publication Number | Publication Date |
|---|---|
| CN209606015U true CN209606015U (en) | 2019-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920593104.6U Active CN209606015U (en) | 2019-04-28 | 2019-04-28 | A kind of prefastening self-sealing pressure tapping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068420A (en) * | 2019-04-28 | 2019-07-30 | 河南省计量科学研究院 | A kind of prefastening self-sealing pressure tapping |
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2019
- 2019-04-28 CN CN201920593104.6U patent/CN209606015U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068420A (en) * | 2019-04-28 | 2019-07-30 | 河南省计量科学研究院 | A kind of prefastening self-sealing pressure tapping |
| CN110068420B (en) * | 2019-04-28 | 2024-05-14 | 河南省计量测试科学研究院 | Pre-tightening type self-sealing pressure gauge joint |
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