CN215861058U - High-reliability integrated three-way pressure measuring connector - Google Patents
High-reliability integrated three-way pressure measuring connector Download PDFInfo
- Publication number
- CN215861058U CN215861058U CN202122271146.8U CN202122271146U CN215861058U CN 215861058 U CN215861058 U CN 215861058U CN 202122271146 U CN202122271146 U CN 202122271146U CN 215861058 U CN215861058 U CN 215861058U
- Authority
- CN
- China
- Prior art keywords
- valve core
- cavity
- joint body
- core shell
- shaped ring
- 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.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model belongs to the technical field of hydraulic parts, and relates to a high-reliability integrated three-way pressure measuring connector. The high-reliability integrated three-way pressure measuring connector comprises a nut component, a check ring, a first O-shaped ring, a second O-shaped ring, a valve core shell, a third O-shaped ring, a compression spring and a three-way connector body; the valve core shell is embedded into one end of the three-way joint body, and a second O-shaped ring is arranged at a gap between the valve core shell and the three-way joint body; a piston rod at the top of the valve core is inserted into the valve core shell, and the conical surface of the valve core is attached to the inner conical surface of the valve core shell; the middle part of the valve core is provided with an annular groove, and a third O-shaped ring is arranged in the annular groove and forms sealing with the inner cylindrical surface of the valve core shell; the bottom of the valve core is sleeved in a central hole above the compression spring. This tee bend pressure measurement connects through the integral type structure under the equal sealing performance requirement prerequisite, has reduced sealed port, has ensured the reliability of connecting, and space utilization is high, low in production cost.
Description
Technical Field
The utility model belongs to the technical field of hydraulic parts, and particularly relates to a high-reliability integrated three-way pressure measuring connector.
Background
The pressure measuring joint is provided with a self-sealing valve inside, the self-sealing valve is closed under the action of a spring when the pressure measuring joint is used alone, and the self-sealing valve can be opened after the pressure measuring joint is butted with a measuring hose or a measuring joint with a thimble, so that the pressure measuring joint is used for sampling a high-pressure or low-pressure fluid system and detecting the system pressure.
The three-way pressure measuring joint in the prior art is of a split structure, and is connected with a three-way joint body through an external thread pressure measuring joint to obtain a combined three-way pressure measuring joint, and the pressure measuring joint has a plurality of sealed connectors and high production cost; in addition, the pressure measuring joint and the three-way joint body are easy to unscrew in the using process, so that the leakage risk is increased; in addition, this split type tee bend pressure measurement connects needs the high installation cavity of suitable degree of agreeing with, and is required highly to its installation space, has certain limitation during the use, can't satisfy the use of the strict scene of application such as high reliability.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: aiming at the defects, the utility model provides the high-reliability integrated three-way pressure measuring connector, and the integrated structure reduces the sealing ports and ensures the connection reliability on the premise of meeting the requirement of the same sealing performance, and has high space utilization rate and low production cost.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a high-reliability integrated three-way pressure measuring joint comprises a nut component, a check ring, a first O-shaped ring, a second O-shaped ring, a valve core shell, a third O-shaped ring, a compression spring and a three-way joint body;
the three-way joint body is provided with a left end part, a right end part and a middle end part which is perpendicular to the left end part and the right end part, a first step hole is formed in the middle end part, the valve core shell is arranged in the first step hole, so that one end of the three-way joint body is embedded in the valve core shell and is in threaded connection with the contact surface of the three-way joint body, and a second O-shaped ring is arranged in a gap between the valve core shell and the three-way joint body;
a second stepped hole which is communicated up and down is formed in the valve core shell, and the second stepped hole sequentially comprises a first cavity, a second cavity, a third cavity, a fourth cavity and a final cavity from top to bottom; a check ring and a first O-shaped ring are arranged in the first cavity; the diameter of the second cavity is smaller than that of the first cavity, a piston rod at the top of the valve core is inserted into the second cavity of a second step hole in the valve core shell, the inner surface of the third cavity is an inner conical surface, and the conical surface in the middle of the valve core is attached to the inner conical surface of the second step hole in the valve core shell; the middle part of the valve core is provided with an annular groove, a third O-shaped ring is arranged in the annular groove and forms a seal with a fourth cavity of the valve core shell, and the fourth cavity is of a cylindrical structure;
the bottom of the valve core is sleeved in a central hole above the compression spring, the bottom of the valve core is arranged in the end cavity, and the upper end part of the valve core is provided with exhaust holes which are arranged in a crossed connection mode;
the nut component is covered above the valve core shell and is in threaded connection with the three-way joint body; and the upper end of the nut component is provided with a dustproof plunger piston, and the dustproof plunger piston is inserted into a second step hole in the valve core shell and is in close contact with a check ring and a first O-shaped ring arranged in the valve core shell.
Furthermore, a first upper external thread is arranged on the outer surface of one side, facing the upper part, of the opening of the three-way joint body, and a first internal thread corresponding to the first upper external thread is arranged on the inner surface of the nut component;
the outer surfaces of the left and right side end parts of the lower part of the tee joint body are provided with first lower external threads, the left and right side end parts of the tee joint body are respectively provided with an inner taper hole, and the inner taper hole and the first external threads which are correspondingly arranged on the same side form an inner taper external thread structure which is tightly connected with a pipeline.
Further, the inner taper hole opening faces outward, and the inner taper hole angle is 20-30 °.
Further, the left and right side end portions of the three-way joint body have an outer annular recess respectively, the outer annular recess being provided between the first lower external thread and the end of the three-way joint body opening toward the one end.
Furthermore, the upper end of the nut component is also provided with a cap top detachably connected with the dustproof plunger, and the lower part of the cap top is fixed in a concave structure on the upper end face of the dustproof plunger; the cap top is fixedly connected with the three-way joint body through a chain.
The utility model has the beneficial effects that:
1. this kind of high reliability integral type tee bend pressure measurement connects forms into integral type structure by tee bend joint body, case subassembly, nut subassembly, and the integral type structure has reduced sealed port under equal sealing performance requirement prerequisite, and sealing performance is stable, connects reliably, the processing cost is low, space utilization is high.
2. The left end and the right end of the tee joint body connecting pipe body in the tee joint pressure measuring connector are connected through the inner cone and the outer thread, the annular recess is formed in the position close to the surface of the outer thread, and the stability of the pipe body connected with the tee joint pressure measuring connector is improved.
Drawings
The foregoing and other objects, features, and advantages of the utility model will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the valve cartridge of the present invention;
FIG. 3 is a schematic view of the valve cartridge and the valve cartridge housing of the present invention;
wherein: 1. a nut assembly; 11. a dust-proof plunger; 111. a recessed structure; 12. a crown; 13. a chain; 2. a retainer ring; 3. a first O-ring; 4. a second O-ring; 5. a valve core; 51. a piston rod; 52. an annular groove; 53. an exhaust hole; 6. a valve core housing; 61. a second stepped bore; 611. a first cavity; 612. a second cavity; 613. a third cavity; 614. a fourth cavity; 615. a final cavity; 7. a third O-ring; 8. a compression spring; 9. a three-way joint body; 91. a left end portion; 92. a right end portion; 93. a middle end portion; 94. a first upper external thread; 95. a first lower external thread; 96. an outer annular recess; 97. a first stepped bore; 98. an inner taper hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, the high-reliability integrated three-way pressure measuring connector comprises a nut component 1, a check ring 2, a first O-shaped ring 3, a second O-shaped ring 4, a valve core 5, a valve core shell 6, a third O-shaped ring 7, a compression spring 8 and a three-way connector body 9;
the three-way joint body 9 is provided with a left end part 91, a right end part 92 and a middle end part 93 which is perpendicular to the left end part 91 and the right end part 92, a first stepped hole 97 is formed in the middle end part 93, the valve core shell 6 is arranged in the first stepped hole 97 so as to be embedded into one end of the three-way joint body 9 and is in threaded connection with the contact surface of the three-way joint body 9, and a second O-shaped ring 4 is arranged at a gap between the valve core shell 6 and the three-way joint body 9;
a second stepped hole 61 which penetrates through the valve core housing 6 from top to bottom is formed in the valve core housing 6, and the second stepped hole 61 sequentially comprises a first cavity 611, a second cavity 612, a third cavity 613, a fourth cavity 614 and a final cavity 615 from top to bottom; a retainer ring 2 and a first O-shaped ring 3 are arranged in the first cavity 611; the diameter of the second cavity 612 is smaller than that of the first cavity 611, the piston rod 51 at the top of the valve core 5 is inserted into the second cavity 612 of the second stepped hole 61 in the valve core housing 6, the inner surface of the third cavity 613 is an inner conical surface, and the conical surface in the middle of the valve core 5 is attached to the inner conical surface of the second stepped hole 61 in the valve core housing 6; the middle part of the valve core 5 is provided with an annular groove 52, a third O-shaped ring 7 is arranged in the annular groove 52 and forms a seal with a fourth cavity 614 of the valve core shell 6, and the fourth cavity 614 is of a cylindrical structure; the bottom of the valve core 5 is sleeved in a central hole above the compression spring 8, the bottom of the valve core 5 is arranged in the last cavity 615, and the upper end of the valve core 5 is provided with exhaust holes 53 which are connected in a cross way;
the nut component 1 is covered above the valve core shell 6 and is in threaded connection with the three-way joint body 9; the upper end of the nut component 1 is provided with a dustproof plunger 11, and the dustproof plunger 11 is inserted into a second step hole 61 on the valve core shell 6 and is tightly contacted with a retainer ring 2 and a first O-shaped ring 3 which are arranged in the valve core shell 6; the outer surface of one side of the opening of the three-way joint body 9 facing upwards is provided with a first upper external thread 94, and the inner surface of the nut component 1 is provided with a first internal thread corresponding to the first upper external thread 94;
the outer surfaces of the left and right side end parts of the lower part of the three-way joint body 9 are provided with first lower external threads 95, the left and right side end parts of the three-way joint body 9 are respectively provided with an inner taper hole 98, and the inner taper hole 98 and the first external threads correspondingly arranged on the same side form an inner taper external thread structure which is tightly connected with a pipeline; the inner taper hole opening faces outward, the angle of the inner taper hole 98 is 20-30 degrees, and the angle of the inner taper hole 98 is 24 degrees in the preferred embodiment.
In order to better fixedly connect the pipe body to both ends of the three-way joint body 9, both right and left side end portions of the three-way joint body 9 are respectively provided with an outer annular recess 96, and the outer annular recess 96 is provided between the first lower external thread 95 and the end of the three-way joint body 9 opening toward one end.
In order to prevent dust from entering the three-way pressure measuring connector during operation, the upper end of the nut component 1 is also provided with a crown 12 detachably connected with the dustproof plunger 11, and the lower part of the crown 12 is fixed in a concave structure 111 on the upper end face of the dustproof plunger 11; the crown 12 is fixedly connected with the three-way joint body 9 through a chain 13.
When the three-way pressure measuring joint is used, the external threads at the left end and the right end of a three-way joint body are communicated with a pipeline, the upper end of the three-way pressure measuring joint is connected with a measuring hose or a measuring joint with a thimble through the external threads, the thimble of the measuring hose or the measuring joint is pressed down to jack the valve core, the valve core is separated from the sealing surface of a valve core shell, a central channel of the three-way joint body is opened, oil enters the concave surface at the upper end of the valve core and enters a flow channel inside a piston rod through an exhaust hole in the concave surface, then the oil is discharged through an exhaust hole in the top of the piston rod, and the discharged fluid directly enters a central sampling channel of the measuring hose or the measuring joint, so that the sampling and the system pressure detection of a low-pressure fluid system are completed. This kind of high reliability integral type tee bend pressure measurement connects forms into integral type structure by tee bend joint body, case subassembly, nut subassembly, and the integral type structure has reduced sealed port under equal sealing performance requirement prerequisite, and sealing performance is stable, connects reliably, the processing cost is low, space utilization is high.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a high reliability integral type tee bend pressure measurement connects which characterized in that: the valve core comprises a nut component, a check ring, a first O-shaped ring, a second O-shaped ring, a valve core shell, a third O-shaped ring, a compression spring and a three-way joint body;
the three-way joint body is provided with a left end part, a right end part and a middle end part which is perpendicular to the left end part and the right end part, a first step hole is formed in the middle end part, the valve core shell is arranged in the first step hole, so that one end of the three-way joint body is embedded in the valve core shell and is in threaded connection with the contact surface of the three-way joint body, and a second O-shaped ring is arranged in a gap between the valve core shell and the three-way joint body;
a second stepped hole which is communicated up and down is formed in the valve core shell, and the second stepped hole sequentially comprises a first cavity, a second cavity, a third cavity, a fourth cavity and a final cavity from top to bottom; a check ring and a first O-shaped ring are arranged in the first cavity; the diameter of the second cavity is smaller than that of the first cavity, a piston rod at the top of the valve core is inserted into the second cavity of a second step hole in the valve core shell, the inner surface of the third cavity is an inner conical surface, and the conical surface in the middle of the valve core is attached to the inner conical surface of the second step hole in the valve core shell; the middle part of the valve core is provided with an annular groove, a third O-shaped ring is arranged in the annular groove and forms a seal with a fourth cavity of the valve core shell, and the fourth cavity is of a cylindrical structure;
the bottom of the valve core is sleeved in a central hole above the compression spring, the bottom of the valve core is arranged in the end cavity, and the upper end part of the valve core is provided with exhaust holes which are arranged in a crossed connection mode;
the nut component is covered above the valve core shell and is in threaded connection with the three-way joint body; and the upper end of the nut component is provided with a dustproof plunger piston, and the dustproof plunger piston is inserted into a second step hole in the valve core shell and is in close contact with a check ring and a first O-shaped ring arranged in the valve core shell.
2. The high-reliability integrated three-way pressure measuring joint according to claim 1, characterized in that: the outer surface of one side of the opening of the three-way joint body facing upwards is provided with a first upper external thread, and the inner surface of the nut component is provided with a first internal thread corresponding to the first upper external thread;
the outer surfaces of the left and right side end parts of the lower part of the tee joint body are provided with first lower external threads, the left and right side end parts of the tee joint body are respectively provided with an inner taper hole, and the inner taper hole and the first external threads which are correspondingly arranged on the same side form an inner taper external thread structure which is tightly connected with a pipeline.
3. The high-reliability integrated three-way pressure measuring joint according to claim 2, characterized in that: the opening of the inner taper hole faces the outside, and the angle of the inner taper hole is 20-30 degrees.
4. The high-reliability integrated three-way pressure measuring joint according to claim 2, characterized in that: the left side end and the right side end of the three-way joint body are respectively provided with an outer annular recess, and the outer annular recess is arranged between the first lower external thread and one end of the opening of the three-way joint body facing to one end.
5. The high-reliability integrated three-way pressure measuring joint according to claim 1, characterized in that: the upper end of the nut component is also provided with a cap top detachably connected with the dustproof plunger, and the lower part of the cap top is fixed in a concave structure on the upper end face of the dustproof plunger; the cap top is fixedly connected with the three-way joint body through a chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122271146.8U CN215861058U (en) | 2021-09-18 | 2021-09-18 | High-reliability integrated three-way pressure measuring connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122271146.8U CN215861058U (en) | 2021-09-18 | 2021-09-18 | High-reliability integrated three-way pressure measuring connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861058U true CN215861058U (en) | 2022-02-18 |
Family
ID=80255239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122271146.8U Active CN215861058U (en) | 2021-09-18 | 2021-09-18 | High-reliability integrated three-way pressure measuring connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861058U (en) |
-
2021
- 2021-09-18 CN CN202122271146.8U patent/CN215861058U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216590386U (en) | Sealing joint structure free of steel pipe welding | |
| CN215861058U (en) | High-reliability integrated three-way pressure measuring connector | |
| CN213451895U (en) | One-way non-return inflation valve | |
| CN214500422U (en) | Quick-operation joint suitable for high pressure | |
| CN217683829U (en) | Hydraulic quick-change connector with protection function | |
| CN203036135U (en) | Pressure detection joint ball seal structure | |
| CN212273412U (en) | A connect seal assembly for high pressure oil rail helium seals test | |
| CN215110774U (en) | Normally closed electric explosion valve | |
| CN212718487U (en) | With stop valve complex joint and idle call test system | |
| CN205047907U (en) | Reverse low leak rate check valve | |
| CN210397320U (en) | Integral ball sealing pressure measuring joint | |
| CN210218966U (en) | Flaring type pipe joint | |
| CN210397794U (en) | Steel ball type three-way shuttle valve joint | |
| CN210269040U (en) | High-efficient water pressure test fixture | |
| CN210715379U (en) | Integral type conical surface sealing pressure measuring joint | |
| CN204114414U (en) | A kind of rapid pipe joint | |
| CN203594402U (en) | Oil tube plugging device | |
| CN203036136U (en) | High pressure detachable type ball sealing pressure measuring connector | |
| CN105972327A (en) | Novel membrane separator sealing device | |
| CN221799695U (en) | Airtight knot of oil casing connects | |
| CN220505654U (en) | Oil brake loose joint structure and hydraulic oil brake | |
| CN215721558U (en) | Insert two effect integral type joints soon | |
| CN218670732U (en) | Double-piston valve seat structure | |
| CN221075648U (en) | Quick fluid joint | |
| CN221799693U (en) | Oil pipe joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |