CN214946397U - Top valve with replaceable sealing gasket in external field - Google Patents
Top valve with replaceable sealing gasket in external field Download PDFInfo
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- CN214946397U CN214946397U CN202120468390.0U CN202120468390U CN214946397U CN 214946397 U CN214946397 U CN 214946397U CN 202120468390 U CN202120468390 U CN 202120468390U CN 214946397 U CN214946397 U CN 214946397U
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Abstract
The utility model discloses a top valve with a replaceable sealing gasket for an external field, which comprises a valve body (213), wherein an inflation connector (221) is arranged on the side surface of the valve body (213); the method is characterized in that: the anti-skidding elastic valve is characterized in that an ejector rod (212) penetrates through the valve body (213) to be assembled, an inner groove in the top of the valve body (213) sequentially sleeves a gasket IV (211), a gasket II (210), a gasket III (209), a gasket V (208), an anti-skidding elastic gasket (207) and a gasket I (206) on the ejector rod (212) from bottom to top, and the top of the valve body (213) compresses the gasket I (206), the anti-skidding elastic gasket (207), the gasket V (208), the gasket III (209), the gasket II (210) and the gasket IV (211) through a mounting compression nut. The utility model relates to a rationally, it is removable to realize the outfield, if there is leakage gas to change at any time, convenience of customers' use.
Description
Technical Field
The utility model belongs to the aerospace field relates to the high-pressure chamber of aircraft charge jar, pillar uses the annex, specifically is a removable sealed apical valve that fills up of outfield.
Background
Overhead valves are accessories used in charging the high pressure chambers of the strut, the accumulator, of the aircraft. The existing top valve has a specific structure as shown in fig. 1, a sealing cover 110 is mounted at an upper port of a valve body I101 through a thread structure and a sealing washer II 113, a rotating shaft 105 penetrates through the sealing cover 110 and is sealed through an O-shaped sealing washer 111, and a sealing washer I112 is arranged between the sealing cover 110 and the bottom end of the rotating shaft 105; the inner part of a groove of a rotating handle 107 is arranged at the upper end of a rotating shaft 105 through a nut 108, a pressing sheet 109 and a spring 106, the lower end of the rotating shaft 105 is provided with a shifting rod 103 through a pin 104, the shifting rod 103 is arranged at the center of a top rod 102 through a threaded structure, the lower end of the top rod I102 is provided with a top needle I116, the lower end outlet of a valve body I101 is provided with a copper gasket 114, and the valve body I101 is provided with a movable head I115 through a closing process; an inflation connector is integrally arranged on the side face of the valve body I101.
During the use, will push valve and surveyed the part through living the head and be connected, seal through copper packing ring and surveyed the part, it is in the same place with the valve body combination through closing up technology to live the head, and it is rotatory through rotatory handle drive pivot, the synchronous rotatory drive ejector pin displacement from top to bottom of driving lever, and then adjust thimble length, push open and surveyed the part case and aerify. This design has two problems: firstly, the copper gasket is a loss part, and the external field cannot be replaced; and if the external field leaks air, the O-shaped sealing ring cannot be replaced on site.
Disclosure of Invention
The utility model aims at providing a removable sealed apical valve that fills up of outfield solves the problem that traditional apical valve outfield can not change copper packing ring and O shape sealing washer, does not influence the use in outfield.
The utility model discloses an adopt following technical scheme to realize:
the top valve with the replaceable sealing gasket for the external field comprises a valve body, wherein an inflation connector is integrally arranged on the side surface of the valve body; an ejector rod penetrates through the valve body through threads, an inner groove in the top of the valve body sequentially sleeves a gasket IV, a gasket II, a gasket III, a gasket V, an anti-skidding elastic gasket and a gasket I on the ejector rod from bottom to top, and the gasket I, the anti-skidding elastic gasket, the gasket V, the gasket III, the gasket II and the gasket IV are tightly pressed at the top of the valve body through mounting a compression nut; a handle is arranged at the upper end of the ejector rod; the lower end part of the valve body is assembled in the movable head, the annular groove at the lower part of the valve body and the annular groove at the upper part of the movable head are connected together through two semicircular snap ring pieces, the two semicircular snap ring pieces are packaged in a sleeve ring, the upper end of the sleeve ring abuts against a no-ear check ring, and the lower end of the sleeve ring is fixed through a snap spring positioned in the snap ring groove at the upper part of the movable head; the lower end of the ejector rod is provided with an ejector pin which can penetrate out of the outlet of the lower end of the valve body, and a sealing ring is installed around the outlet of the lower end of the valve body.
Preferably, the sealing ring is made of carbon fiber polytetrafluoroethylene materials.
Preferably, the shape of the gasket III and the gasket II is a wedge shape which is matched with each other.
When the pneumatic valve is used, the ejector rod is driven to move downwards by screwing the handle, the ejector pin penetrates through the outlet at the lower end of the valve body and then jacks the valve core of the component to be tested, and inflation is carried out through the inflation connector.
The top valve is characterized in that the movable head and the valve body are designed into an outfield detachable structure, the movable head and the valve body are clamped together by utilizing two semicircular clamping ring pieces, the lantern ring is sleeved outside the two semicircular clamping ring pieces, then the lantern ring is fixed up and down through the earless check ring and the snap spring, and the sealing ring is made of carbon fiber polytetrafluoroethylene and can realize sealing with a tested component. If the sealing ring needs to be replaced in an outfield, the movable head can be detached on site, and meanwhile, the sealing ring is a nonmetal sealing ring, so that the replacement on site can be realized. In addition, the gasket III and the gasket II are designed into two mutually matched wedges, if air leakage exists, the compression nut can be fastened by a wrench to seal an external field, if the gasket III and the gasket II need to be replaced, the handle can be unscrewed, and then the compression nut can be loosened to replace the gasket III and the gasket II.
The utility model relates to a rationally, fundamentally has solved this problem, realizes that the outfield is removable, if leak gas change at any time, convenience of customers's use has fine practical application to be worth for closing up technology, built-in vulnerable part copper gasket can not be changed, can not use promptly if leak gas the outfield, can only wait for to return the producer and change, seriously influences the customer and uses.
Drawings
Fig. 1 is a schematic view showing the structure of a conventional overhead valve.
Fig. 2 shows a schematic view of the top valve structure according to the present invention.
In fig. 1: 101-valve body I, 102-ejector rod I, 103-deflector rod, 104-pin, 105-rotating shaft, 106-spring, 107-rotating handle, 108-nut, 109-pressing piece, 110-sealing cover, 111-O-shaped ring, 112-sealing washer I, 113-sealing washer II, 114-copper washer, 115-movable head I, 116-ejector pin I.
In fig. 2: 201-handle, 202-locknut, 203-spring washer, 204-flat washer, 205-gland nut, 206-washer I, 207-anti-skidding elastic washer, 208-washer V, 209-washer III, 210-washer II, 211-washer IV, 212-ejector rod, 213-valve body, 214-earless retainer ring, 215-semicircular retainer ring piece, 216-lantern ring, 217-snap spring, 218-loose head, 219-sealing ring, 220-ejector pin and 221-inflation connector.
Detailed Description
The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.
An external field replaceable sealing gasket top valve, as shown in fig. 2, comprises a valve body 213, an air charging connector 221 is integrally arranged on the side surface of the valve body 213; the valve body 213 is internally provided with a mandril 212 in a penetrating way through a threaded structure, an inner groove in the top of the valve body 213 sequentially sleeves a gasket IV 211, a gasket II 210, a gasket III 209, a gasket V208, an anti-skid elastic gasket 207 and a gasket I206 on the mandril 212 from bottom to top, and the top of the valve body 213 tightly presses the gasket I206, the anti-skid elastic gasket 207, the gasket V208, the gasket III 209, the gasket II 210 and the gasket IV 211 through installing a compression nut, wherein the gasket III 209 and the gasket II 210 are in wedge shapes matched with each other.
As shown in fig. 2, a handle 201 is mounted on the upper end of the mandril 212 through an M4 locknut 202, an elastic pad 203 and a flat pad 204. The lower end of the valve body 213 is assembled in the movable head 218, the ring groove at the lower part of the valve body 213 and the ring groove at the upper part of the movable head 218 are connected together through two semicircular snap ring pieces 215, the two semicircular snap ring pieces 215 are packaged in the lantern ring 216, the upper end of the lantern ring 216 abuts against the earless retainer ring 214, and the lower end of the lantern ring is fixed through the snap spring 217 positioned in the snap ring groove at the upper part of the movable head 218.
As shown in fig. 2, the lower end of the plunger 212 is provided with a thimble 220 which can penetrate through the outlet of the lower end of the valve body 213, and a seal 219 is mounted around the outlet of the lower end of the valve body 213 and can be sealed by the outlet of the lower end of the plunger 218. The mandril 212, the valve body 213 and the movable head 218 are coaxially arranged, and the sealing ring 219 is made of carbon fiber polytetrafluoroethylene (non-metal sealing ring), so that the sealing with the tested part can be realized.
The overhead valve be with living first 218 and valve body 213 be external field detachable construction, utilize two semicircle snap ring pieces 215 will live first 218 and valve body 213 joint together, will encircle a ring 216 suit in two semicircle snap ring pieces 215 outsides, fix the lantern ring from top to bottom through no ear retaining ring 214 and jump ring 217 again, sealing washer 219 is carbon fiber polytetrafluoroethylene, can realize with the sealed of being surveyed the part. If the sealing ring 219 needs to be replaced in an outfield, the movable head can be detached on site, and meanwhile, the sealing ring 219 is a nonmetal sealing ring, so that the replacement on site can be realized.
The overhead valve design into two wedges of mutually supporting with packing ring III 209, packing ring II 210, if leak gas, outfield accessible spanner fastening gland nut 5 seals, if need change packing ring III 209, packing ring II 210, can unscrew handle 201, then can change after loosening gland nut 205.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the detailed description is made with reference to the embodiments of the present invention, those skilled in the art should understand that the technical solutions of the present invention are modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the protection scope of the claims of the present invention.
Claims (3)
1. The top valve with the replaceable sealing gasket for the external field comprises a valve body (213), wherein an inflation connector (221) is arranged on the side surface of the valve body (213); the method is characterized in that: the anti-skidding elastic valve is characterized in that a top rod (212) penetrates through the valve body (213) and is assembled in the valve body (213) through threads, an inner groove in the top of the valve body (213) sequentially sleeves a gasket IV (211), a gasket II (210), a gasket III (209), a gasket V (208), an anti-skidding elastic gasket (207) and a gasket I (206) on the top of the valve body (213) on the top rod (212), and a compression nut is arranged on the top of the valve body (213) to compress the gasket I (206), the anti-skidding elastic gasket (207), the gasket V (208), the gasket III (209), the gasket II (210) and the gasket IV (211); the upper end of the ejector rod (212) is provided with a handle (201); the lower end part of the valve body (213) is assembled in the movable head (218), a ring groove at the lower part of the valve body (213) and a ring groove at the upper part of the movable head (218) are connected together through two semi-circular snap ring pieces (215), the two semi-circular snap ring pieces (215) are packaged in a lantern ring (216), the upper end of the lantern ring (216) abuts against a no-ear check ring (214), and the lower end of the lantern ring is fixed through a snap spring (217) positioned in the snap ring groove at the upper part of the movable head (218); the lower end of the ejector rod (212) is provided with an ejector pin (220) capable of penetrating out of the outlet at the lower end of the valve body (213), and a sealing ring (219) is installed around the outlet at the lower end of the valve body (213).
2. The field replaceable gasket top valve of claim 1 wherein: the sealing ring (219) is made of carbon fiber polytetrafluoroethylene materials.
3. The field replaceable gasket tip valve of claim 1 or 2, wherein: the shape of the gasket III (209) and the gasket II (210) is a matched wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120468390.0U CN214946397U (en) | 2021-03-04 | 2021-03-04 | Top valve with replaceable sealing gasket in external field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120468390.0U CN214946397U (en) | 2021-03-04 | 2021-03-04 | Top valve with replaceable sealing gasket in external field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946397U true CN214946397U (en) | 2021-11-30 |
Family
ID=79117553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120468390.0U Active CN214946397U (en) | 2021-03-04 | 2021-03-04 | Top valve with replaceable sealing gasket in external field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214946397U (en) |
-
2021
- 2021-03-04 CN CN202120468390.0U patent/CN214946397U/en active Active
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