CN210397794U - Steel ball type three-way shuttle valve joint - Google Patents
Steel ball type three-way shuttle valve joint Download PDFInfo
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- CN210397794U CN210397794U CN201921004478.6U CN201921004478U CN210397794U CN 210397794 U CN210397794 U CN 210397794U CN 201921004478 U CN201921004478 U CN 201921004478U CN 210397794 U CN210397794 U CN 210397794U
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Abstract
The utility model belongs to the technical field of valves, in particular to a steel ball type three-way shuttle valve joint, a valve ball cavity is arranged in a valve body, the valve ball is arranged in the valve ball cavity, the valve body is provided with an outer joint structure communicated with the valve ball cavity at two ends, an end cap is arranged in the outer joint structure, the axle center of the end cap is provided with an axle hole with the inner diameter smaller than the outer diameter of the valve ball, the front end port of the axle hole close to the valve ball is an arc concave surface matched with the spherical surface of the valve ball, the middle part of the valve body is provided with a transverse pressure measuring cavity communicated with the valve ball cavity, a pressure measuring structure is arranged in the pressure measuring cavity, the pressure measuring structure comprises a valve core, an inner sleeve, an outer sleeve and a spring, the outer peripheral surface of the valve core is a conical surface, the valve core can move along the axial direction of the pressure measuring cavity, the inner sleeve is arranged at the, both had the tee junction effect, can directly carry out the pressure measurement to the pipeline under the condition of not letting out the pressure again, the simple operation.
Description
Technical Field
The utility model belongs to the technical field of the valve, concretely relates to steel ball formula tee bend shuttle valve connects.
Background
The three-way shuttle valve is a common valve control assembly in a fluid system and is used for controlling the flow direction of fluid, and the pressure measuring joint is a sampling and system pressure testing assembly of the fluid system. In the prior art, the operation of pressure measurement is carried out aiming at the management at two ends of the three-way shuttle valve, the three-way shuttle valve needs to be connected independently, and pressure is required to be relieved before the pressure measurement is connected, so that the safety is improved. Great inconvenience is brought to the pressure measurement work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to above-mentioned defect, provide steel ball formula tee bend shuttle valve connects, both had the tee junction effect, can directly carry out the pressure measurement, the simple operation to the pipeline again under the condition of not pressure release.
The utility model provides a technical scheme that its technical problem adopted as follows:
the steel ball type three-way shuttle valve joint comprises a valve body and a valve ball, wherein an axial valve ball cavity is arranged in the valve body, the valve ball is arranged in the valve ball cavity and can move in the valve ball cavity along the axial direction, two ends of the valve ball cavity are respectively communicated with two ends of the valve body, an outer joint structure communicated with the valve ball cavity is arranged at two ends of the valve body, a plug for limiting and sealing the valve ball is arranged in the outer joint structure, a shaft hole with the inner diameter smaller than the outer diameter of the valve ball is arranged at the axis of the plug, an arc concave surface matched with the spherical surface of the valve ball is arranged at the front end, close to the valve ball, of the shaft hole, a transverse pressure measuring cavity communicated with the valve ball cavity is arranged in the middle of the valve body,
the pressure measuring structure comprises a valve core, an inner sleeve, an outer sleeve and a spring, wherein the valve core is arranged in a pressure measuring cavity, the outer peripheral surface of the valve core is a conical surface, the valve core can move along the axial direction of the pressure measuring cavity, the inner sleeve is arranged on the inner wall of the pressure measuring cavity to limit the position of the valve core, the inner wall of the inner sleeve is of a conical surface structure matched with the outer peripheral surface of the valve core, the valve core and the inner sleeve form a conical surface sealing structure, the spring is arranged at the bottom of the valve core to form floating support for the valve core, a sealing ring abutting against the inner wall of the inner sleeve is embedded on the outer peripheral surface of the valve core, the outer sleeve is arranged on the outer side of the inner sleeve, a.
Furthermore, the inner sleeve is arranged in the middle of the pressure measuring cavity, the inner sleeve is in threaded fit with the pressure measuring cavity, and a sealing gasket is arranged at the joint of the bottom of the inner sleeve and the pressure measuring cavity.
Furthermore, a first step structure is arranged on the wall of the pressure measuring cavity corresponding to the bottom of the inner sleeve, the sealing washer is arranged at the first step structure, and the bottom end of the inner sleeve is of an inverted conical surface structure pressed on the sealing washer.
Furthermore, the lower end of the outer sleeve is sleeved on the outer side of the upper end of the inner sleeve, the outer end of the outer sleeve is limited through the valve body, and the sealing ring is positioned on the top end face of the inner sleeve.
Furthermore, the upper end of the spring is abutted against the bottom end face of the valve core, and the lower end of the spring is abutted against the second step structure arranged on the wall of the pressure measuring cavity.
Furthermore, the outer joint structure comprises a clamping sleeve arranged at two ends of the valve body and connected with the end opening of the valve ball cavity, and a pull sleeve nut connected to the clamping sleeve.
The utility model has the advantages that: by adopting the scheme, the shuttle valve can realize a three-way function, has good air tightness, can directly measure the pressure of the hydraulic pipeline and the air pressure pipeline by the external pressure gauge, does not need to relieve the pressure of the pipeline firstly during pressure measurement, is simple and convenient to operate, has good use effect, has self-sealing function at a pressure measurement cavity without pressure measurement, and has better air tightness.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic longitudinal sectional structure diagram according to an embodiment of the present invention.
Fig. 2 is a schematic view of a longitudinal cross-section structure of a pressure measurement structure according to an embodiment of the present invention.
Fig. 3 is a schematic view of a longitudinal cross-section structure of an inner sleeve according to an embodiment of the present invention.
Wherein: the pressure measuring valve comprises a valve body 1, a valve ball cavity 11, a pressure measuring cavity 12, a valve ball 2, a sleeve nut 3, a sleeve 31, a plug 4, a valve core 5, a sealing ring 51, an inner sleeve 6, a sealing washer 61, an outer sleeve 7, a spring 8, a sealing ring 9 and a sealing backing ring 91.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1-3, a steel ball type three-way shuttle valve joint comprises a valve body 1 and a valve ball 2, wherein an axial valve ball cavity 11 is arranged in the valve body 1, the valve ball 2 is arranged in the valve ball cavity 11 and can move in the valve ball cavity 11 along the axial direction, two ends of the valve ball cavity 11 are respectively communicated with two ends of the valve body 1, a cutting sleeve 31 extending into the valve ball cavity 11 and connected with the end of the valve ball cavity is arranged at the end of the valve body 1, a cutting sleeve nut 3 is connected with the outside of the cutting sleeve 31, the cutting sleeve nut 3 is used for connecting with a pipeline for facilitating connection operation and measuring pressure, a plug 4 for limiting and sealing the valve ball 2 is arranged in the valve ball cavity 11 at the inner side of the cutting sleeve 31, a shaft hole with the inner diameter smaller than the outer diameter of the valve ball 2 is arranged at the shaft center of the plug 4, an arc concave surface matched with the valve ball surface is arranged at the front end of the shaft hole close to the, the valve ball is matched with the arc concave surface of the plug at the end with smaller pressure to form a sealing structure, the middle part of the valve body 1 is provided with a transverse pressure measuring cavity 12 communicated with a valve ball cavity 11, a pressure measuring structure is arranged in the pressure measuring cavity 12, the pressure measuring structure comprises a valve core 5 arranged in the pressure measuring cavity 12, an inner sleeve 6, an outer sleeve 7 and a spring 8, the outer peripheral surface of the valve core 5 is a conical surface, the valve core 5 can move along the axial direction of the pressure measuring cavity 12, the inner sleeve 6 is arranged at the middle part of the pressure measuring cavity 12, the inner sleeve 6 is in threaded fit with the inner wall of the pressure measuring cavity 12, the inner sleeve 6 is used for limiting the position of the valve core 5, the inner wall of the inner sleeve 6 is in a conical surface structure matched with the outer peripheral surface of the valve core 5, the valve core 5 and the inner sleeve 6 form a conical surface sealing structure with better sealing performance, the spring 8 is arranged at the bottom of, the upper end of the spring 8 is abutted against the bottom end face of the valve ball cavity, the spring 8 is in a compressed state, the spring 8 applies thrust to the valve core 5 to ensure that the valve core keeps sealing with the inner sleeve, a sealing ring 51 abutting against the inner wall of the inner sleeve 6 is embedded on the outer peripheral face of the valve core 5, when the valve core is in contact sealing with the inner sleeve, the sealing ring 51 is in a squeezed state, the sealing ring 51 is arranged at the rear part of the outer peripheral face and is positioned at a joint with the inner wall face of the bottom of the inner sleeve to seal the joint, the sealing performance of gas and liquid is further improved, the leakage of the gas and liquid is avoided, the outer sleeve 7 is arranged on the outer side of the inner sleeve 6, the bottom side of the outer sleeve 7 is provided with a sleeve cavity sleeved outside the upper part of the inner sleeve 6, the upper end of the outer sleeve 7 is limited by the valve body, the top end face of, the sealing cushion ring 91 is supported by the inner sleeve by the waist of the sleeve cavity, the sealing ring has the main sealing function at the position, the barometer is inserted from the upper end, penetrates through the inner hole of the outer sleeve, enters the inner sleeve after penetrating through the inner hole of the sealing ring, pushes the valve core downwards, the valve core moves downwards, the outer peripheral surface of the valve core is separated from the inner wall of the inner sleeve, so that the barometer performs pressure measurement, the inner wall of the sealing ring is tightly attached to the surface of the inserted part of the barometer, leakage is avoided, and the accuracy of the pressure measurement is improved, the three-way shuttle valve joint can measure the pressure of pipelines at two sides, has good sealing performance, is suitable for an air pressure or hydraulic system, is in a self-sealing state when pressure measurement is not performed, can realize three-way connection and can perform pressure measurement, does not need pressure relief during pressure measurement, is simple and convenient in pressure measurement operation and has high efficiency, the first step structure, use to keep away from valve ball chamber one side as the top, second stair structure department is equipped with seal ring 61, and the bottom of endotheca 6 is for pressing the back taper surface structure of covering in seal ring 61 department, and seal ring 61 is in between back taper surface structure and pressure measurement chamber wall, and back taper surface structure extrusion seal ring seals, and when having better leakproofness, the cooperation of this department is inseparable, is favorable to dwindling the volume, the production, the use of this structure of being convenient for.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.
Claims (6)
1. The steel ball type three-way shuttle valve joint comprises a valve body and a valve ball and is characterized in that a valve ball cavity along the axial direction is arranged in the valve body, the valve ball is arranged in the valve ball cavity and can move along the axial direction in the valve ball cavity, two ends of the valve ball cavity are respectively communicated with two ends of the valve body, an outer joint structure communicated with the valve ball cavity is arranged at two ends of the valve body, a plug for limiting and sealing the valve ball is arranged in the outer joint structure, a shaft hole with the inner diameter smaller than the outer diameter of the valve ball is arranged at the axis of the plug, an arc concave surface matched with the spherical surface of the valve ball is arranged at the position, close to the front end port of the valve ball, of the shaft hole, a transverse pressure measuring cavity communicated with the valve ball cavity is arranged in the middle of the valve body, a pressure measuring structure is arranged in the pressure measuring cavity and comprises a valve core, an inner sleeve, an outer sleeve and a spring which are arranged in the pressure measuring cavity, the inner wall of the inner sleeve is of a conical surface structure matched with the outer peripheral surface of the valve core, a conical surface sealing structure is formed at the position of the valve core and the inner sleeve, the spring is arranged at the bottom of the valve core to form floating support for the valve core, a sealing ring abutting against the inner wall of the inner sleeve is embedded on the outer peripheral surface of the valve core, the outer sleeve is arranged on the outer side of the inner sleeve, a sealing ring is arranged at the joint of the outer sleeve and the inner sleeve, the inner diameter of the sealing ring is smaller than the inner diameter of the upper end of an.
2. The steel ball type three-way shuttle valve joint according to claim 1, wherein the inner sleeve is arranged at the middle part of the pressure measuring cavity, the inner sleeve is in threaded fit with the pressure measuring cavity, and a sealing gasket is arranged at the joint of the bottom of the inner sleeve and the pressure measuring cavity.
3. The steel ball type three-way shuttle valve joint according to claim 2, wherein a first step structure is arranged on the wall of the pressure measuring cavity corresponding to the bottom of the inner sleeve, the sealing washer is arranged at the first step structure, and the bottom end of the inner sleeve is of an inverted conical surface structure pressed on the sealing washer.
4. The steel ball type three-way shuttle valve joint as claimed in claim 1, wherein the lower end of the outer sleeve is sleeved outside the upper end of the inner sleeve, the outer end of the outer sleeve is limited by the valve body, and the sealing ring is positioned on the top end face of the inner sleeve.
5. The steel ball type three-way shuttle valve joint according to claim 1, wherein the upper end of the spring abuts against the bottom end face of the valve core, and the lower end of the spring abuts against the second step structure provided on the wall of the pressure measuring cavity.
6. The steel ball type three-way shuttle valve joint as claimed in claim 1, wherein the external joint structure comprises a ferrule arranged at both ends of the valve body and connected with the end opening of the valve ball cavity, and a pull sleeve nut connected to the ferrule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004478.6U CN210397794U (en) | 2019-06-28 | 2019-06-28 | Steel ball type three-way shuttle valve joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004478.6U CN210397794U (en) | 2019-06-28 | 2019-06-28 | Steel ball type three-way shuttle valve joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397794U true CN210397794U (en) | 2020-04-24 |
Family
ID=70352095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921004478.6U Active CN210397794U (en) | 2019-06-28 | 2019-06-28 | Steel ball type three-way shuttle valve joint |
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| Country | Link |
|---|---|
| CN (1) | CN210397794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827928A (en) * | 2020-07-23 | 2020-10-27 | 邵玉刚 | Check valve for underground double-layer coiled tubing |
-
2019
- 2019-06-28 CN CN201921004478.6U patent/CN210397794U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827928A (en) * | 2020-07-23 | 2020-10-27 | 邵玉刚 | Check valve for underground double-layer coiled tubing |
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