CN213838773U - Indicator valve structure - Google Patents
Indicator valve structure Download PDFInfo
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- CN213838773U CN213838773U CN202022148817.7U CN202022148817U CN213838773U CN 213838773 U CN213838773 U CN 213838773U CN 202022148817 U CN202022148817 U CN 202022148817U CN 213838773 U CN213838773 U CN 213838773U
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Abstract
The utility model provides a show power valve structure, it has the cushion chamber to open in the valve body on the diesel engine cylinder, the one end of cushion chamber is the inlet port of intercommunication cylinder, the other end is equipped with the plug screw mounting hole, install the plug screw in the plug screw mounting hole, it installs the thimble to have the screw that sets up in the plug screw, the one end diameter of thimble is great and set up in the cushion chamber and can seal up the counterbalance with the inlet port, the last measurement mouth that is used for connecting the show power table of valve body passes through air vent and cushion chamber intercommunication. When the device is used, the choke plug is pulled out and the indicator is installed, the ejector pin is rotated to be separated from the air inlet hole, high-pressure gas sprayed out of the air cylinder is sprayed to the buffer cavity and the ejector pin through the air inlet hole, and the high-pressure gas enters the indicator along the air vent after being buffered by the buffer cavity. This kind of indicator valve structure can effectively slow down the interior high-pressure gas's of cylinder initial blowout pressure through the cushion chamber, avoids damaging the indicator and reduces the safety hazard nature to personnel because of pressure is too big to make atmospheric pressure more steady and improve the precision of barometry.
Description
Technical Field
The utility model relates to an install and be used for measuring merit valve structure of diesel engine cylinder explosion pressure on the diesel engine.
Background
The indicator valve is an air valve which is arranged on a cylinder of a large and medium diesel engine and is used for connecting an indicator so as to measure the explosion pressure in the cylinder. Before starting and when stopping the diesel engine, the indicator valve is opened to discharge impurities such as water, oil stain, carbon deposit and the like in the cylinder out of the cylinder, so that the load of the cylinder is adjusted or the cylinder is blocked, and further the safety and the service life of the diesel engine are improved. When the existing indicator valve is opened, high-pressure gas in the cylinder is directly sprayed to the connecting end of the indicator, the indicator is easily damaged due to overlarge initial burst pressure, or the indicator is impacted to fall off, and the personal safety during operation can be even damaged in severe cases.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a higher merit valve structure of security to protection merit table and operating personnel's safety.
The utility model discloses a power-indicating valve structure, including the valve body that one end was installed on the cylinder of diesel engine, it has the cushion chamber to open along the middle part of cylinder jet axis in the valve body, it has the inlet port of intercommunication cylinder jet to open towards the one end of cylinder to lie in the cushion chamber on the valve body, the one end that lies in the cushion chamber and backs to the cylinder on the valve body is the plug screw mounting hole that extends to the outer wall, and the diameter of inlet port is less than the cushion chamber, the plug screw has been cup jointed to the plug screw in the plug screw mounting hole, open along cylinder jet axis on the plug screw has the screw, the thimble is installed in the screw of plug screw, the one end of thimble lies in the cushion chamber and is greater than the screw diameter and can seal with the inlet port and offset; the valve body is provided with a measuring port connected with the indicator, the valve body is also internally provided with a vent hole for communicating the measuring port with the buffer cavity, and the valve body is also internally provided with a plug which is detachably connected with the measuring port and seals the measuring port.
In the indicator valve structure of the utility model, when the cylinder of the diesel engine works normally, one end of the thimble in the buffer cavity is tightly pressed against the air inlet hole for sealing, and the choke plug is arranged on the measuring port; when the diesel engine is started and stopped and the indicator valve needs to be opened, the choke plug is pulled out, the indicator is installed on the measuring port of the valve body, the thimble is rotated, the end part of the thimble is separated from the air inlet hole, and therefore the sealing between the thimble and the air inlet hole is relieved; and then, the high-pressure gas sprayed out of the diesel engine cylinder is sprayed to the buffer cavity and the ejector pin through the air inlet hole, and enters the indicator along the air vent after being buffered by the buffer cavity, and the indicator can measure the pressure value of the diesel engine cylinder. This kind of indicator valve structure can effectively slow down the interior high-pressure gas's of cylinder initial blowout pressure through the cushion chamber, then the gas reentry indicator through the buffering, and this one side can avoid damaging the indicator and reducing the safety hazard nature to personnel because of pressure is too big, and on the other hand then can make atmospheric pressure more steady to improve barometry's precision.
Drawings
Fig. 1 is a schematic structural view of a structure of an indicator valve.
FIG. 2 is a schematic cross-sectional view of the indicator valve of FIG. 1 in the direction A-A.
Detailed Description
A power-indicating valve structure comprises a valve body 1, one end of the valve body is mounted on an air cylinder of a diesel engine, a buffer cavity 11 is formed in the valve body along the middle of an air nozzle axis of the air cylinder, an air inlet hole 12 communicated with the air nozzle of the air cylinder is formed in one end, facing the air cylinder, of the buffer cavity on the valve body, a screw plug mounting hole 13 extending to the outer wall is formed in one end, opposite to the air cylinder, of the buffer cavity on the valve body, the diameter of the air inlet hole is smaller than that of the buffer cavity, a screw plug 2 is screwed in the screw plug mounting hole, a screw hole is formed in the screw plug along the air nozzle axis of the air cylinder, a thimble 3 is mounted in the screw hole of the screw plug, one end of the thimble is located in the buffer cavity, is larger than the diameter of the screw hole and can be in sealed and abutted against the air inlet hole; the valve body is provided with a measuring port 14 connected with the indicator, the valve body is also internally provided with a vent hole 15 for communicating the measuring port with the buffer cavity, and the valve body is also internally provided with a plug 4 which is detachably connected with the measuring port and seals the measuring port.
As shown in fig. 1 and 2, the indicator valve is attached to a diesel cylinder 100. When the cylinder 100 of the diesel engine works normally, one end of the thimble in the buffer cavity is tightly pressed against the air inlet hole for sealing, and the choke plug is arranged on the measuring port; when the diesel engine is started and stopped and the indicator valve needs to be opened, the choke plug is pulled out, the indicator is installed on the measuring port of the valve body, the thimble is rotated, the end part of the thimble is separated from the air inlet hole, and therefore the sealing between the thimble and the air inlet hole is relieved; and then, the high-pressure gas sprayed out of the diesel engine cylinder is sprayed to the buffer cavity and the ejector pin through the air inlet hole, and enters the indicator along the air vent after being buffered by the buffer cavity, and the indicator can measure the pressure value of the diesel engine cylinder.
In the indicator valve structure, the plug 4 comprises a plug body and a plug block arranged at one end of the plug body, and the diameter of the plug block is larger than that of the plug body and is connected with the measuring port 14 of the valve body 1; the outer wall of the valve body at the measuring port is provided with an external thread, and a locking nut 5 in threaded connection with the external thread end of the valve body is arranged, one end of the locking nut is sleeved outside the plug body of the stuffy plug, and the diameter of the locking nut is smaller than that of the plug block; the plug can be conveniently assembled, disassembled and locked by the arrangement of the plug and the lock nut, and the plug is high in connection strength and simple and convenient to operate. In addition, the choke plug 4 and the valve body 1 are respectively provided with a retaining ring 6, and the two retaining rings are connected through a chain 7; the arrangement of the retaining ring can improve the convenience of unplugging the stuffy plug, and the arrangement of the chain can prevent the stuffy plug from dropping and losing, so that the requirement of additionally placing the stuffy plug is reduced, and the operation convenience is improved.
In the indicator valve structure, the plug screw 2 comprises a plug body arranged in the plug screw mounting hole 13 and a plug cap positioned outside the plug screw mounting hole, and the diameter of the plug cap is larger than that of the plug screw mounting hole, so that the connection precision and the sealing property between the plug screw and the valve body are improved; in addition, a seal ring 8 is provided between the plug cap of the plug screw 2 and the valve body 1 to further improve the sealing property therebetween.
In the indicator valve structure, one end of the thimble 3, which is positioned in the buffer cavity 11, is conical, the top end of the cone extends into the air inlet 12 of the valve body 1, and the size of a gap between the thimble and the air inlet can be adjusted by rotating the position of the conical thimble, so that the initial pressure of high-pressure gas spraying can be relieved, and the quantity of gas entering the valve body can be accurately adjusted according to requirements.
In the indicator valve structure, the valve body 1 is arranged on the cylinder of the diesel engine through the fixing screw 9, and the indicator valve structure is simple in structure and stable in connection; a gasket 10 is arranged between the valve body 1 and a cylinder of the diesel engine to improve the sealing property.
Claims (8)
1. The utility model provides a show power valve structure, includes that one end is installed valve body (1) on the cylinder of diesel engine, its characterized in that: a buffer cavity (11) is formed in the middle of the axis of the air nozzle of the air cylinder in the valve body, an air inlet hole (12) communicated with the air nozzle of the air cylinder is formed in one end, located on the valve body, facing the air cylinder, of the buffer cavity, a screw plug mounting hole (13) extending to the outer wall is formed in one end, located on the valve body, opposite to the air cylinder, of the buffer cavity, the diameter of the air inlet hole is smaller than that of the buffer cavity, a screw plug (2) is connected in the screw plug mounting hole in a screwed mode, a screw hole is formed in the screw plug along the axis of the air nozzle of the air cylinder, a thimble (3) is mounted in the screw hole of the screw plug, one end of the thimble is located in the buffer cavity, larger than the diameter of the screw hole and can be in sealed abutting contact with the air inlet hole; the valve body is provided with a measuring port (14) connected with the indicator, the valve body is also internally provided with a vent hole (15) for communicating the measuring port with the buffer cavity, and the valve body is also internally provided with a plug (4) which is detachably connected with the measuring port and seals the measuring port.
2. The indicator valve structure according to claim 1, characterized in that: the plug (4) comprises a plug body and a plug block arranged at one end of the plug body, and the diameter of the plug block is larger than that of the plug body and is connected with a measuring port (14) of the valve body (1); the outer wall that the valve body is located measurement mouth department sets up the external screw thread, has in addition with this external screw thread end spiro union's of valve body lock nut (5), lock nut's one end cover in the cock body of stuffy plug outside and the diameter is less than the chock block.
3. The indicator valve structure according to claim 1 or 2, characterized in that: the choke plug (4) and the valve body (1) are respectively provided with a retaining ring (6), and the two retaining rings are connected through a chain (7).
4. The indicator valve structure according to claim 1, characterized in that: the plug screw (2) comprises a plug body arranged in the plug screw mounting hole (13) and a plug cap positioned outside the plug screw mounting hole, and the diameter of the plug cap is larger than that of the plug screw mounting hole.
5. The indicator valve structure according to claim 4, characterized in that: a sealing ring (8) is arranged between the plug cap of the screw plug (2) and the valve body (1).
6. The indicator valve structure according to claim 1, characterized in that: one end of the thimble (3) positioned in the buffer cavity (11) is in a cone shape, and the top end of the cone extends into an air inlet hole (12) of the valve body (1).
7. The indicator valve structure according to claim 1, characterized in that: the valve body (1) is arranged on a cylinder of the diesel engine through a fixing screw (9).
8. The indicator valve structure according to claim 1, characterized in that: a gasket (10) is arranged between the valve body (1) and the diesel engine cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022148817.7U CN213838773U (en) | 2020-09-27 | 2020-09-27 | Indicator valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022148817.7U CN213838773U (en) | 2020-09-27 | 2020-09-27 | Indicator valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213838773U true CN213838773U (en) | 2021-07-30 |
Family
ID=77006933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022148817.7U Active CN213838773U (en) | 2020-09-27 | 2020-09-27 | Indicator valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213838773U (en) |
-
2020
- 2020-09-27 CN CN202022148817.7U patent/CN213838773U/en active Active
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