CN208488207U - A kind of pressure tapping for pressure gauge calibrating installation - Google Patents
A kind of pressure tapping for pressure gauge calibrating installation Download PDFInfo
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- CN208488207U CN208488207U CN201820932053.0U CN201820932053U CN208488207U CN 208488207 U CN208488207 U CN 208488207U CN 201820932053 U CN201820932053 U CN 201820932053U CN 208488207 U CN208488207 U CN 208488207U
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- cavity
- pressure tapping
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- pressure
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Abstract
The utility model provides a kind of pressure tapping for pressure gauge calibrating installation, including pressure tapping ontology, pressure tapping ontology one end center is equipped with the first cavity, the pressure tapping ontology other end center is equipped with the second cavity for extending to the first cavity position, first cavity and the second cavity are cylindrical, diameter of the diameter of first cavity less than the second cavity, the first cavity cavity wall is equipped with internal screw thread, seal is equipped in second cavity, the seal is hollow hemispherical outer wall, the bump location of the seal is equipped with penetrating infusion hole, the salient point of the seal is set in the first cavity, the seal is equipped with elastomer far from the end of salient point.The utility model has the beneficial effects that quick detachable positioning, leakage when can prevent from dismantling pressure gauge can comparatively fast replace the pressure gauge for needing to examine and determine.
Description
Technical field
It is specifically a kind of for pressure gauge calibrating installation the utility model relates to metrical instrument Calibration Technology field
Pressure tapping.
Background technique
Currently, pressure gauge calibrating installation needs often to dismantle installation pressure gauge in the detection process, to guarantee leakproofness, need
Auxiliary material such as tetrafluoroethene is wound in pressure gauge connecting portion to be sealed, it is time-consuming and laborious, also frequently there is leakage, no
The problems such as easy to install.
Summary of the invention
Purpose of the utility model is to solve the deficiencies of above-mentioned technology, provide a kind of for pressure gauge calibrating installation
Pressure tapping, can be quickly disassembled pressure gauge and easily positioning.
The technical solution of the utility model is:
A kind of pressure tapping for pressure gauge calibrating installation, including pressure tapping ontology, the pressure tapping
Ontology one end center is equipped with the first cavity, and the pressure tapping ontology other end center is equipped with and extends to the first cavity position
Second cavity, first cavity and the second cavity are cylindrical, and the diameter of first cavity is straight less than the second cavity
Diameter, the first cavity cavity wall are equipped with internal screw thread, and seal is equipped in second cavity, and the seal is hollow hemisphere
The bump location of shape outer wall, the seal is equipped with penetrating infusion hole, and the salient point of the seal is set in the first cavity, institute
It states seal and is equipped with elastomer far from the end of salient point.
Protection body is equipped in second cavity, the protection body is circular ring shape, and the internal diameter diameter of the protection body is greater than
The diameter of seal, the internal diameter diameter of the protection body are greater than the maximum gauge of elastomer.
The elastomer is cylinder-shaped compression spring, and the height of the elastomer in a free state is more than or equal to second
The height of cavity.
The maximum gauge of the elastomer is less than or equal to the internal diameter diameter of seal.
One end that the pressure tapping ontology is equipped with the second cavity is equipped with interconnecting piece, and the interconnecting piece is by pressure tapping
Ontology is extended to form to far from the first cavity direction, and the interconnecting piece inside center is equipped with third cavity, and the third cavity is
Cylindrical, the diameter of the third cavity is less than the diameter of the second cavity, and the interconnecting piece outer wall is equipped with external screw thread.
The maximum gauge of the elastomer is greater than the diameter of third cavity.
First cavity inner wall is longitudinally equipped with the notches that n is recessed to pressure tapping body outer wall, n >=1 and
For positive integer.
The notch is laid in the first cavity wall of pressure tapping ontology.
Screw thread of first cavity far from second cavity one end is straight thread, and first cavity is close to the second cavity one
The screw thread at end is taper thread.
The first cavity inside tapered thread close to the second cavity direction along gradually tightening, and the notch is along close to the second cavity
Direction is gradually increased.
The beneficial effects of the utility model are: structure is simple and convenient to operate, it can be quickly disassembled, when can prevent disassembly
Leakage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A-A the schematic diagram of the section structure of Fig. 1；
Fig. 3 is the local B enlarged diagram of Fig. 1；
Fig. 4 is the structural schematic diagram that Fig. 1 is equipped with interconnecting piece.
Marked in the figure: 1. pressure tapping ontologies, 2. first cavitys, 3. seals, 4. elastomers, 5. second cavitys, 6.
Interconnecting piece, 7. third cavitys, 8. straight threads, 9. taper threads, 10. notches, 11. infusion holes, 12. protection bodies.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, to help the utility model is understood
Content.
Embodiment one
As shown in Figure 1-3, a kind of pressure tapping for pressure gauge calibrating installation, including pressure tapping ontology 1, pressure
1 outer surface of power meter connector ontology can be cylindrical structure, hex surface or four edged surfaces can also be set as in outer surface, convenient for being matched with tool
Conjunction is operated.
1 one end center of pressure tapping ontology is equipped with the first cavity 2, and 1 other end center of pressure tapping ontology, which is equipped with, prolongs
The second cavity 5 of 2 position of the first cavity is extended to, the first cavity 2 and the second cavity 5 are cylindrical, the diameter of the first cavity 2
Less than the diameter of the second cavity 5.
First cavity, 2 inner wall is longitudinally laid with the notches 10 of n to 1 outer wall depression of pressure tapping ontology, n >=1 and
For positive integer, it is equipped with screw thread in pressure tapping ontology 1 between two adjacent notches 10, pressure tapping ontology 1 is far from the
One end of two cavitys 3 is equipped with straight thread 8, and pressure tapping ontology 1 is equipped with taper thread 9, the first chamber close to one end of the second cavity 5
2 inside tapered thread 9 of body is gradually tightened along close to 3 direction of the second cavity, and notch 10 is gradually increased along close to 2 direction of the second cavity.
2 or 3 or 4 notches 10 can be uniformly distributed in first cavity 2.
Second cavity, 3 inner cavity is arranged with protection body 12, and protection body 12 is circular ring shape, and protection body 12 uses rubber material.
Seal 3 is equipped in protection body 12, seal 3 uses metal material, and seal 3 can be for outside hollow hemispherical
Wall, seal 3 can also be solid hemi-spherical, and the salient point of seal 3 is located in the first cavity 2, and the bump location of seal 3 is equipped with
Infusion hole 11, infusion hole 11 make the first cavity 2 be connected with the second cavity 5.
Preferably, infusion hole 11 uses round hole.
Seal 3 is equipped with elastomer 4 far from the end of salient point, and elastomer 4 is cylinder-shaped compression spring.
The internal diameter diameter of protection body 12 is more than or equal to the diameter of seal 3, and the internal diameter diameter of protection body 12 is greater than elastomer 4
Maximum gauge.
The height of elastomer 4 in a free state is more than or equal to the height of the second cavity 5.
The maximum gauge of elastomer 4 is less than or equal to the diameter of seal 3.
Pressure tapping ontology 1 is equipped with one end of the second cavity 5 and the corresponding position of pressure gauge calibrating installation is weldingly connected,
When replacing constant-pressure table to be checked, pressure gauge calibrating installation is in non-pressurized state, and seal 3 makes under the action of elastomer 4
Seal 3 and the lower end of the first cavity 2 are combined closely.
After pressure tapping ontology 1 installs constant-pressure table to be checked, the notch 10 of 5 circumference of the first cavity becomes smaller after being squeezed,
The straight thread 8 and taper thread 9 of first cavity, 2 circumference tightly embrace the end of thread of calibrating pressure gauge and reach preferable sealing positioning
Effect.
When constant-pressure table to be checked is installed, the end of thread of pressure gauge to be detected be set in the first cavity 2 and with seal 3
It is contacted at salient point, the straight thread and taper thread in the first cavity 2 are closely connect with the end of thread of calibrating pressure gauge, measuring pressure to be checked
The infusion pipeline of table is connected with infusion hole 11, and after the pressurization of pressure gauge calibrating installation, liquid passes through the second cavity 5, infusion hole 11
Enter pressure gauge with the infusion pipeline of constant-pressure table to be checked.
Embodiment two
Embodiment two and the structure of embodiment one are essentially identical, and something in common repeats no more, below to their difference
Place is illustrated.
As shown in figure 4, one end that pressure tapping ontology 1 is equipped with the second cavity 5 is equipped with interconnecting piece 6, interconnecting piece 6 is by pressure
Meter connector ontology 1 is extended to form to far from 2 direction of the first cavity, and 6 inside center of interconnecting piece is equipped with third cavity 7, third cavity
7 be cylindrical, and the diameter of third cavity 7 is less than the diameter of the second cavity 5, and 6 outer wall of interconnecting piece is equipped with external screw thread.
The maximum gauge of elastomer 4 is greater than the diameter of third cavity 7, and pressure tapping ontology 1 passes through interconnecting piece 6 and pressure
The corresponding position screw thread of table calibrating installation is connected.
The external screw thread of 6 outer wall of interconnecting piece close to one end of the second cavity 5 can be straight thread, the external screw thread of 6 outer wall of interconnecting piece
One end far from the second cavity 5 can be taper thread.
It should be noted that word "front", "rear", "left", "right", "up" and "down" used in being described above refer to
Direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this
The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the utility model patent protection scope,
It should still belong to the scope that the utility model claims book is covered.
Claims (10)
1. a kind of pressure tapping for pressure gauge calibrating installation, including pressure tapping ontology, it is characterised in that: the pressure
Power meter connector ontology one end center is equipped with the first cavity, and the pressure tapping ontology other end center is equipped with and extends to the first chamber
Second cavity of body position, first cavity and the second cavity are cylindrical, and the diameter of first cavity is less than second
The diameter of cavity, the first cavity cavity wall are equipped with internal screw thread, are equipped with seal in second cavity, during the seal is
The bump location of empty hemispherical outer wall, the seal is equipped with penetrating infusion hole, and the salient point of the seal is located at first
In cavity, the seal is equipped with elastomer far from the end of salient point.
2. pressure tapping according to claim 1, it is characterised in that: protection body is equipped in second cavity, it is described
Protection body is circular ring shape, and the internal diameter diameter of the protection body is greater than the diameter of seal, and the internal diameter diameter of the protection body is greater than
The maximum gauge of elastomer.
3. pressure tapping according to claim 1, it is characterised in that: the elastomer is cylinder-shaped compression spring, institute
State the height that the height of elastomer in a free state is more than or equal to the second cavity.
4. pressure tapping according to claim 3, it is characterised in that: the maximum gauge of the elastomer is less than or equal to close
Seal the internal diameter diameter of body.
5. pressure tapping according to claim 4, it is characterised in that: the pressure tapping ontology is equipped with the second cavity
One end be equipped with interconnecting piece, the interconnecting piece is from pressure tapping ontology to extending to form far from the first cavity direction, the company
Socket part inside center is equipped with third cavity, and the third cavity is cylindrical, and the diameter of the third cavity is less than the second chamber
The diameter of body, the interconnecting piece outer wall are equipped with external screw thread.
6. pressure tapping according to claim 5, it is characterised in that: the maximum gauge of the elastomer is greater than third chamber
The diameter of body.
7. pressure tapping described in -6 any one according to claim 1, it is characterised in that: first cavity inner wall is longitudinal
Equipped with the notch that n is recessed to pressure tapping body outer wall, n >=1 and be positive integer.
8. pressure tapping according to claim 7, it is characterised in that: the notch is laid in pressure tapping ontology
The first cavity wall.
9. pressure tapping according to claim 8, it is characterised in that: first cavity is far from second cavity one end
Screw thread is straight thread, and the screw thread of first cavity close to second cavity one end is taper thread.
10. pressure tapping according to claim 9, it is characterised in that: the first cavity inside tapered thread is along close to the
Two cavity directions are gradually tightened, and the notch edge is gradually increased close to the second cavity direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820932053.0U CN208488207U (en) | 2018-06-15 | 2018-06-15 | A kind of pressure tapping for pressure gauge calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820932053.0U CN208488207U (en) | 2018-06-15 | 2018-06-15 | A kind of pressure tapping for pressure gauge calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208488207U true CN208488207U (en) | 2019-02-12 |
Family
ID=65252056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820932053.0U Active CN208488207U (en) | 2018-06-15 | 2018-06-15 | A kind of pressure tapping for pressure gauge calibrating installation |
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| Country | Link |
|---|---|
| CN (1) | CN208488207U (en) |
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 |
-
2018
- 2018-06-15 CN CN201820932053.0U patent/CN208488207U/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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