CN204239386U - A kind of pressure measurement tee union - Google Patents
A kind of pressure measurement tee union Download PDFInfo
- Publication number
- CN204239386U CN204239386U CN201420719908.3U CN201420719908U CN204239386U CN 204239386 U CN204239386 U CN 204239386U CN 201420719908 U CN201420719908 U CN 201420719908U CN 204239386 U CN204239386 U CN 204239386U
- Authority
- CN
- China
- Prior art keywords
- oil
- hole
- pressure measurement
- screw rod
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 85
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
本实用新型提供一种测压用三通接头，包括螺盖和螺杆，螺盖为中间带有顶针的内螺纹顶盖，螺杆两端设置有外螺纹，螺杆中部有环状突起，螺杆中间设置有通孔，通孔分为三段，中间段的直径小于两边两段的直径，与螺盖相连接的一段通孔为测压油路，测压油路内放置弹簧，弹簧上方放置钢球，钢球上方设置油堵，油堵上方的螺堵通过螺纹连接固定在螺杆内，螺堵和油堵之间设置第一密封圈，通孔的下面两段均为进油孔，下段的进油孔上部设置有穿透螺杆壁的出油孔。本实用新型提供一种结构简单、可靠性高、安装空间要求较小的测压用三通接头，尤其适合油路布置密集，测压点较多的狭小空间。
The utility model provides a three-way joint for pressure measurement, which includes a screw cover and a screw rod. The screw cover is an internal thread top cover with a thimble in the middle. There is a through hole, the through hole is divided into three sections, the diameter of the middle section is smaller than the diameter of the two sections on both sides, and the section of the through hole connected to the screw cap is the pressure measuring oil circuit, the spring is placed in the pressure measuring oil circuit, and the steel ball is placed above the spring , the oil plug is set above the steel ball, the screw plug above the oil plug is fixed in the screw rod through threaded connection, the first sealing ring is set between the screw plug and the oil plug, the lower two sections of the through hole are oil inlet holes, and the lower section The upper part of the oil hole is provided with an oil outlet hole penetrating the wall of the screw rod. The utility model provides a three-way joint for pressure measurement with simple structure, high reliability and small installation space requirements, which is especially suitable for narrow spaces with densely arranged oil passages and many pressure measurement points.
Description
Technical field
The utility model relates to a kind of pressure measuring tie-in, is specifically related to a kind of pressure measurement tee union.
Background technique
Common hydraulic circuit is rotated by driven by motor oil pump, pump is bought oil after oil suction from oil pump, be the pressure energy of hydraulic oil by changes mechanical energy, hydraulic oil enters into oil cylinder or the oil motor of hydraulic machinery by hydraulic oil pipe, as needed test pressure, then need to use valve block or punching, intensive at oil circuit, in the small space that pressure-measuring point is more, increase the not only bad arrangement in space of valve block, it is also very inconvenient to operate, if punched on oil circuit, then easily produce leakage, and trouble-shooting point is comparatively difficult, therefore, staff often needs the laying taking a long time to design oil circuit, take time and effort.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides the pressure measurement tee union that a kind of structure is simple, reliability is high, requirements of installation space is less, is especially applicable to oil circuit and arranges intensive, the small space that pressure-measuring point is more.
The technological scheme that the utility model adopts is: a kind of pressure measurement tee union, comprise blind nut and screw rod, blind nut is the middle internal thread top cover with thimble, screw rod two ends are provided with outside thread, circular protrusion is had in the middle part of screw rod, through hole is provided with in the middle of screw rod, through hole is divided into three sections, the diameter of intermediate section is less than the diameter on two sections, both sides, the one section of through hole be connected with blind nut is pressure measurement oil circuit, spring is placed in pressure measurement oil circuit, steel ball is placed above spring, it is stifled that oil is set above steel ball, the screw plug of the oil side of blocking is threaded connection and is fixed in screw rod, between screw plug and oil block up, the first seal ring is set, below through hole, two sections are oil inlet hole, the oil inlet hole top of hypomere is provided with the oil outlet of penetrating screw wall.
Further, described oil outlet has three, and horizontal is distributed in the oil inlet hole of hypomere circumferentially, and the sectional area of oil outlet is less than the sectional area of the oil inlet hole of hypomere.Because screw rod wall is thinner, oil outlet excessive possibility build-up of pressure is excessive, therefore arranges the oil outlet that three sectional areas are less than oil inlet hole hypomere sectional area.
Further, the sectional area summation of described three oil outlets equals the sectional area of the oil inlet hole of hypomere.
Further, the lower surface of described screw rod circular protrusion is provided with the second seal ring.
Further, the outside thread of described screw rod lower end is the hinged hex head bolt standard thread of GB3750.3-83 FERRULETYPE.The hex head bolt that can directly substitute in GB3750.3-83 FERRULETYPE hinged pipe joint uses.
Further, the material that described oil is stifled is copper.
The beneficial effects of the utility model are: modal conducting oil circuit bolt and pressure measurement joint are integrated by the utility model, pressure test and the oil circuit conducting of hydraulic system can be realized, the position considering pressure measurement interface is not needed when hydraulic system pipeline designs, decrease the laying of hydraulic system oil circuit, owing to not needing to use hydraulic valve block, be applicable to less design space and use; The sealing of pressure measurement end have employed one-way valve principle and axial seal design, and decrease the loss causing hydraulic oil in pressure gauge unloading process, meanwhile, double-sealing ensure that the reliable sealing of rear oil duct pulled down by hydralic pressure gauge; Two external interfaces of this tee union all select existing standard part, and do not need user to use interface otherwise designed to it, practicability is stronger; The utility model is easy to use in the oil circuit that spatial requirement is higher, reliable, decreases workload when design of Hydraulic System personnel design pressure measurement oil circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressure measurement tee union described in the utility model embodiment 1;
Fig. 2 is the structural representation of the pressure measurement tee union described in the utility model embodiment 2;
Fig. 3 is the application schematic diagram of the pressure measurement tee union described in the utility model embodiment 1;
Fig. 4 is the application schematic diagram of the pressure measurement tee union described in the utility model embodiment 2.
In figure: 1. blind nut, 2. screw plug, 3. the first seal ring, 4. oil is stifled, 5. steel ball, 6. spring, 7. screw rod, 8. the second seal ring, 9. pressure measurement oil circuit, 10. filler opening, 11. oil outlets, 12. ferrule fittings, 13. oil guide slot, 14. oil pipes, 15. backbone sealing rings.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
Embodiment 1
As shown in Figure 1, a kind of pressure measurement tee union, comprise blind nut 1 and screw rod 7, blind nut 1 is the middle internal thread top cover with thimble, screw rod 7 two ends are provided with outside thread, the outside thread be connected with blind nut 1 is M16*2, the outside thread that the other end is connected with oil circuit is the hinged hex head bolt standard thread of GB3750.3-83 FERRULETYPE, circular protrusion is had in the middle part of screw rod 7, through hole is provided with in the middle of screw rod 7, through hole is divided into three sections, the diameter of intermediate section is less than the diameter on two sections, both sides, the one section of through hole be connected with blind nut 1 is pressure measurement oil circuit 9, spring 6 is placed in pressure measurement oil circuit 9, steel ball 5 is placed above spring 6, copper oil stifled 4 is set above steel ball 5, screw plug 2 lower surface installs the first seal ring 3, be threaded connection and be fixed in screw rod 7, by the copper of below oil stifled 4, steel ball 5, spring 6 is fixed in pressure measurement oil circuit 9, formed between first seal ring 3 and copper oil stifled 4 and seal together, copper oil is stifled forms one-way valve sealing between 4 and steel ball 5.Below through hole, two sections are oil inlet hole 10, oil inlet hole 10 top of hypomere is provided with the oil outlet 11 of penetrating screw 7 wall, oil outlet 11 has three, and horizontal is distributed in the oil inlet hole 10 of hypomere circumferentially, and the sectional area summation of three oil outlets 11 equals the sectional area of the oil inlet hole 10 of hypomere.
During use, as shown in Figure 3, ferrule fitting 12 is set on screw rod 7, ferrule fitting about 12 is all inserted in backbone sealing ring 15, below is by the outside thread connecting fluid press pump of screw rod 7, the oil guide slot 13 of ring-type is formed between ferrule fitting 12 and screw rod 7, oil hydraulic pump is after oil inlet hole 10 injection liquid force feed, the oil guide slot 13 that hydraulic oil enters into ring-type from three oil outlets 11 converges, enter oil pipe 14, be transported in oil hydraulic cylinder, because screw rod 7 wall is thinner, for preventing pressure excessive, the oil outlet 11 that three total sectional areas are identical with oil inlet hole 10 hypomere sectional area is set.During pressure measurement, blind nut 1 is screwed off, by the survey press bond of the joint of hydralic pressure gauge connecting hose and screw rod 7, carry out pressure test.
Embodiment 2
As shown in Figure 2, a kind of pressure measurement tee union, comprise blind nut 1 and screw rod 7, blind nut 1 is the middle internal thread top cover with thimble, screw rod 7 two ends are provided with outside thread, the outside thread be connected with blind nut 1 is M16*1.5, the outside thread that the other end is connected with oil circuit is the hinged hex head bolt standard thread of GB3750.3-83 FERRULETYPE, circular protrusion is had in the middle part of screw rod 7, the lower surface of circular protrusion is provided with the second seal ring 8, through hole is provided with in the middle of screw rod 7, through hole is divided into three sections, the diameter of intermediate section is less than the diameter on two sections, both sides, the one section of through hole held that is connected with blind nut 1 is pressure measurement oil circuit 9, spring 6 is placed in pressure measurement oil circuit 9, steel ball 5 is placed above spring 6, copper oil stifled 4 is set above steel ball 5, screw plug 2 lower surface installs the first seal ring 3, be threaded connection and be fixed in screw rod 7, by the copper of below oil stifled 4, steel ball 5, spring 6 is fixed in pressure measurement oil circuit 9, formed between first seal ring 3 and copper oil stifled 4 and seal together, copper oil is stifled forms one-way valve sealing between 4 and steel ball 5.Below through hole, two sections is oil inlet hole 10, oil inlet hole 10 top of hypomere is provided with the oil outlet 11 of penetrating screw 7 wall, oil outlet 11 has three, and horizontal is distributed in the oil inlet hole 10 of hypomere circumferentially, and the sectional area summation of three oil outlets 11 equals the sectional area of oil inlet hole 10 hypomere.
During use, as shown in Figure 4, ferrule fitting 12 is set on screw rod 7, the second seal ring 8 has been had above ferrule fitting 12, only need be inserted in backbone sealing ring 15 in below, by the outside thread connecting fluid press pump of screw rod 7 below backbone sealing ring 15, the oil guide slot 13 of ring-type is formed between ferrule fitting 12 and screw rod 7, oil hydraulic pump is after oil inlet hole 10 injection liquid force feed, the oil guide slot 13 that hydraulic oil enters into ring-type from three oil outlets 11 converges, enter oil pipe 14, be transported in oil hydraulic cylinder, because screw rod 7 wall is thinner, for preventing pressure excessive, the oil outlet 11 that three total sectional areas are identical with oil inlet hole 10 hypomere sectional area is set.During pressure measurement, blind nut 1 is screwed off, by the survey press bond of the joint of hydralic pressure gauge connecting hose and screw rod 7, carry out pressure test.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719908.3U CN204239386U (en) | 2014-11-26 | 2014-11-26 | A kind of pressure measurement tee union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719908.3U CN204239386U (en) | 2014-11-26 | 2014-11-26 | A kind of pressure measurement tee union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239386U true CN204239386U (en) | 2015-04-01 |
Family
ID=52768888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719908.3U Expired - Lifetime CN204239386U (en) | 2014-11-26 | 2014-11-26 | A kind of pressure measurement tee union |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443634A (en) * | 2018-12-25 | 2019-03-08 | 四川优机实业股份有限公司 | Laminated structure is surveyed in sealing |
| CN111577710A (en) * | 2020-04-14 | 2020-08-25 | 中国人民解放军空军南京航空四站装备修理厂 | Self-sealing joint for oil pump truck |
-
2014
- 2014-11-26 CN CN201420719908.3U patent/CN204239386U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443634A (en) * | 2018-12-25 | 2019-03-08 | 四川优机实业股份有限公司 | Laminated structure is surveyed in sealing |
| CN109443634B (en) * | 2018-12-25 | 2024-06-04 | 四川优机实业股份有限公司 | Sealing pressure measuring structure |
| CN111577710A (en) * | 2020-04-14 | 2020-08-25 | 中国人民解放军空军南京航空四站装备修理厂 | Self-sealing joint for oil pump truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150401 |