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
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- pressure measurement
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- hole
- tee union
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Abstract
The utility model provides 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.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.
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)
1. a pressure measurement tee union, comprise blind nut (1) and screw rod (7), described blind nut (1) is the middle internal thread top cover with thimble, described screw rod (7) two ends are provided with outside thread, there is circular protrusion at screw rod (7) middle part, through hole is provided with in the middle of screw rod (7), it is characterized in that: described 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 in spring (6) top, steel ball (5) top arranges oil stifled (4), the screw plug (2) of oil stifled (4) top is threaded connection and is fixed in screw rod (7), between screw plug (2) and oil stifled (4), the first seal ring (3) is set, below described 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.
2. a kind of pressure measurement tee union according to claim 1, it is characterized in that: described oil outlet (11) has three, horizontal is distributed in the oil inlet hole (10) of hypomere circumferentially, and the sectional area of oil outlet (11) is less than the sectional area of the oil inlet hole (10) of hypomere.
3. a kind of pressure measurement tee union according to claim 2, is characterized in that: the sectional area summation of described three oil outlets (11) equals the sectional area of the oil inlet hole (10) of hypomere.
4. a kind of pressure measurement tee union according to claim 1 and 2, is characterized in that: the lower surface of described screw rod (7) circular protrusion is provided with the second seal ring (8).
5. a kind of pressure measurement tee union according to claim 1 and 2, is characterized in that: the outside thread of described screw rod (7) lower end is the hinged hex head bolt standard thread of GB3750.3-83 FERRULETYPE.
6. a kind of pressure measurement tee union according to claim 1 and 2, is characterized in that: the material of described oil stifled (4) is copper.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN204239386U true CN204239386U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719908.3U Active CN204239386U (en) | 2014-11-26 | 2014-11-26 | A kind of pressure measurement tee union |
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| 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 active Active
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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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |