CN110155348B

CN110155348B - Filling valve kit

Info

Publication number: CN110155348B
Application number: CN201910456001.XA
Authority: CN
Inventors: 李继军; 李磊; 张琼伟; 张耀新; 李志鹏; 陈正立; 张聪超; 胡兆华; 李萌; 郭冠华
Original assignee: Henan Aerospace Hydraulic and Pneumatic Technology Co Ltd
Current assignee: Henan Aerospace Hydraulic and Pneumatic Technology Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2023-01-31
Anticipated expiration: 2039-05-29
Also published as: CN110155348A

Abstract

The invention provides a filling valve kit, which comprises a filling valve and a filling gun, wherein the filling valve comprises a valve shell, a top rod and a valve spring seat are arranged in the valve shell, the top rod is connected with the valve shell, the top rod extends into the valve spring seat, a valve spring is arranged between the valve shell and the valve spring seat, and a grid hole is arranged on the valve spring seat; the filling gun comprises a transfer block, an adapter is arranged in the transfer block, a grid hole is formed in the adapter, the adapter is connected with a filling shell, a filling valve core is arranged in the filling shell, and a filling spring is arranged between the adapter and the filling valve core. The invention has the advantages that: the filling gun can freely rotate at 360 degrees, and is convenient to be butted with a filling valve; the filling gun has a double-sealing structure, so that the product redundancy design is met, and the reliability is high; simple structure, small volume and mass and convenient integration.

Description

Filling valve sleeve

Technical Field

The invention relates to filling equipment, in particular to a filling valve kit.

Background

As a common aircraft fuel filling mode, the filling valve sleeve is increasingly applied to the fields of weaponry, aviation and aerospace, the common fuel filling sleeve has the defects of complex structure, large volume and mass and poor sealing performance, and the filling sleeve is easy to leak in the butt joint process, so that the environment is polluted and potential safety hazards exist.

Disclosure of Invention

The invention provides a filling valve sleeve member, which solves the problems of complex structure, large volume and mass and poor sealing performance of the existing filling valve sleeve member.

The technical scheme of the invention is realized as follows: a filling valve kit comprises a filling valve and a filling gun, wherein the filling valve comprises a valve shell, a top rod and a valve spring seat are arranged in the valve shell, one end of the top rod is connected with the valve shell, the other end of the top rod extends into the valve spring seat, a valve spring is arranged between the valve shell and the valve spring seat, the outer side of the valve spring seat is in sealing fit with the valve shell, the inner side of the valve spring seat is in sealing fit with the top rod, and a grid hole is formed in the valve spring seat; the filling gun comprises a switching block, a rotary adapter is arranged in the switching block, a grid hole is formed in the adapter, the adapter is in sealing fit with the switching block, the adapter is connected with a filling shell, the adapter is in sealing fit with the filling shell, a filling valve core is arranged in the filling shell, a filling spring is arranged between the adapter and the filling valve core, and the filling valve core is in sealing fit with the filling shell; the valve shell is in sealing fit with the filling shell.

The ejector rod is locked on the valve shell through the valve nut.

The ejector rod is provided with a limiting part, and the limiting part is matched with the valve spring seat.

The valve shell is provided with a quick connection groove, the quick connection groove is matched with the blocked locking part, and the block is matched with the filling shell in a sealing way.

The adapter block and the adapter are provided with bearings therebetween, the adapter is connected with the bearings through locking nuts, the adapter block is connected with the plug cover, and the plug cover tightly supports the bearings.

The axial sealing surface of the filling valve core is in sealing fit with the R surface of the filling shell, and a sealing piece in sealing fit with the filling shell is arranged on the filling valve core.

The valve shell is provided with a quick connecting groove, the filling shell is provided with a lock pin, and the lock pin is matched with the quick connecting groove.

The invention has the advantages that: 1. the filling gun can freely rotate at 360 degrees and is convenient to be butted with a filling valve; 2. the sealing structure of the filling valve sleeve is a double-sealing structure, so that the product redundancy design is met, and the reliability is high; 3. the product has simple structure, small volume and mass and convenient integration.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the fill valve structure of the present invention.

Fig. 3 is a schematic view of the filling gun of the present invention.

Fig. 4 is a perspective view of the structure of the present invention.

In the figure: 11-valve nut, 12-valve shell, 13-ejector rod, 14-valve spring, 15-valve spring seat, 16-O-shaped rings I and 17-plug, 18-O-shaped rings II and 19-O-shaped ring VIII; 21-plug cover, 22-O-shaped ring III, 23-switching block, 24-switching joint, 25-O-shaped ring IV, 26-O-shaped ring V, 27-filling shell, 28-filling spring, 29-O-shaped ring VI, 210-O-shaped ring VII, 211-filling valve core, 212-bearing and 213-locking nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

A filling valve kit comprises a filling valve and a filling gun, and is used in a matched manner during filling operation, wherein the filling valve is arranged on equipment needing to be filled with fuel, and the filling gun is arranged or matched on ground filling equipment.

As shown in fig. 2, the filling valve includes a valve housing 12, the left end of the valve housing is a flange structure, and is connected to a fuel tank as a filling valve outlet, the right end of the valve housing is a filling valve inlet, a top rod 13 and a valve spring seat 15 are provided in the valve housing 12, one end of the top rod 13 is in threaded connection with the valve housing 12, and is locked to the valve housing 12 by a valve nut 11, the other end of the top rod 13 extends into the valve spring seat 15, a valve spring 4 is provided between the valve housing 12 and the valve spring seat 15, an O-shaped ring VIII19 in sealing fit with the valve housing 12 is provided on the outer side of the valve spring seat 15, an O-shaped ring I16 in sealing fit with the inner side of the valve spring seat 15 is provided on the top rod 13, and a gate hole for circulation is provided on the valve spring seat 15. The valve shell 12 is provided with a quick connecting groove which is matched with a locking part of the plug 17, and the plug 17 is provided with an O-shaped ring II18 which is matched with the filling shell 12 in a sealing way.

In a non-filling state, the valve spring seat 15 is acted by the valve spring 14 to move rightwards, meanwhile, acted by the limiting part on the ejector rod 13 to reach the movement limiting position, the plug 17 moves rightwards under the action of the valve spring seat 15, and the two circumferential locking parts are limited by the quick connecting grooves on the valve shell to reach the limiting position. In the state, radial sealing is realized among the ejector rod 13, the valve shell 12, the valve spring seat 15 and the plug 17 by O-shaped rings, so that the fuel storage tank is isolated from the outside in the state, and the sealing effect is achieved.

As shown in fig. 3, the filling gun comprises a transfer block 23, the transfer block 23 is of a three-way structure, one end of the transfer block is of a standard interface and is connected with ground equipment, and the transfer block is used as a fuel inlet, one end of the transfer block is in threaded connection with a plug cover 21, long-term sealing of the plug cover 21 and the transfer block 23 is realized through cooperation of an O-shaped ring III22, the other end of the transfer block is in rotating fit with a transfer head 24 through a bearing 212, the transfer head 24 is connected with the bearing 212 through a locking nut 213, the bearing 212 is tightly pressed against the plug cover 21, the bearing 212 is positioned, and therefore the transfer head is ensured to be fixed on the transfer block and can freely rotate along the axis of the transfer head by 360 degrees. Inside fuel can get into its runner through the bars hole on the adapter 24 conical surface, through sealed cooperation with O shape circle IV25 between adapter block 23 and the adapter 24, realize the separation of runner and external space, guarantee to fire the fuel flow path and seal. The adapter 24 is threaded on the other end into a filler housing 27, which is sealed by an O-ring V26. A filling valve core 211 is arranged in the filling shell 27, a filling spring 28 is arranged between the adapter 24 and the filling valve core 211, and an O-shaped ring VI29 which is in sealing fit with the valve shell 12 is arranged on the filling shell 27.

In a non-filling state, the filling valve core 211 moves towards one end of the outlet under the action of the filling spring 28, when the filling valve core reaches the limit position, an axial sealing surface on the filling valve core is contacted with the surface R at the bottom of the filling shell to form a sealing pair, and an O-shaped ring VII210 on the filling valve core is matched with the filling shell to form a second sealing pair, so that a double-sealing structure at the position is realized, and the sealing performance of the filling gun in a separation state is ensured to be safer and more reliable. The sealing surface of the filling gun adopts a double-sealing structure, has good sealing performance under the action of self internal pressure, and has good reliability and high safety factor; the filling gun head and the filling gun ground joint can realize 360-degree free rotation, and are convenient to butt with a filling valve; the filling gun and the filling valve can keep good self-sealing state in the butt joint process, and fuel oil leakage can be effectively prevented.

As shown in FIG. 4, the filling valve and the filling gun are of a rotary-inserting type quick-connecting structure, a quick-connecting groove is formed in the valve shell 12, and a locking pin is arranged on the filling shell 27 and matched with the quick-connecting groove.

The filling valve and the filling gun are in a self-sealing state when not in a butt joint state, and the filling valve and the filling gun are connected and then automatically open the respective valves, so that fuel can smoothly pass through and is sealed outwards, and the fuel is prevented from leaking; the self-sealing state of the filling valve is automatically recovered after the filling valve is separated from the filling gun.

As shown in fig. 1, the push rod 13 is fixed to the shutter housing 12, so that its position relative to the shutter housing is not changed, and the filling valve member 211 can slide freely in the filling housing 27. When in butt joint, the filling gun is directly in butt joint with the filling valve, and the quick connecting groove at the inlet of the filling valve has a guiding function, so that the filling gun can automatically align the butt joint position conveniently. Under the action of external force, the ejector rod 13 overcomes the spring force of the filling spring 28, the spring force of the valve spring 24 and the friction force of the O-shaped ring, the filling valve core 211 is pushed open, the filling valve core moves backwards, the O-shaped ring VIII19 and the O-shaped ring VI29 keep good sealing effect at any time in the process, fuel oil leakage in the butt joint process can be effectively prevented until the ejector rod 13 pushes the filling valve core 211 open to the position shown in the figure, and the communication between a filling gun and a filling valve flow passage is realized. At this time, the locking pin on the filling shell 27 reaches the limit position at the same time, the filling shell is manually rotated by about 45 degrees, so that the locking pin is screwed into the quick connecting groove on the valve shell 14, and the filling gun is locked.

The filling valve sleeve is butted, the medium channel is opened, and the two ends are locked by the quick locking mechanism, so that the filling valve sleeve cannot be separated in the using process; when the filling valve sleeve is separated, the filling gun is pushed downwards to the limit position, then the filling shell is rotated manually for about 45 degrees, the locking pin on the shell is made to exit from the quick connecting groove on the valve shell, the locking state of the filling valve sleeve is released, and the filling valve core and the valve spring seat return to the respective original positions respectively under the action of the filling spring and the valve spring of the filling gun and the filling valve, so that the self-sealing of the two components is realized again.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a filling valve external member, includes filling valve and filling gun, its characterized in that: the filling valve comprises a valve shell (12), a top rod (13) and a valve spring seat (15) are arranged in the valve shell (12), one end of the top rod (13) is connected with the valve shell (12), the other end of the top rod (13) extends into the valve spring seat (15), a valve spring (4) is arranged between the valve shell (12) and the valve spring seat (15), the outer side of the valve spring seat (15) is in sealing fit with the valve shell (12), the inner side of the valve spring seat (15) is in sealing fit with the top rod (13), and a grid hole is formed in the valve spring seat (15); the filling gun comprises a switching block (23), a rotary adapter (24) is arranged in the switching block (23), a grid hole is formed in the adapter (24), the adapter (24) is in sealing fit with the switching block (23), the adapter (24) is connected with a filling shell (27), the adapter (24) is in sealing fit with the filling shell (27), a filling valve core (211) is arranged in the filling shell (27), a filling spring (28) is arranged between the adapter (24) and the filling valve core (211), and the filling valve core (211) is in sealing fit with the filling shell (27); the valve shell (12) is in sealing fit with the filling shell (27);

the filling valve and the filling gun are of a rotary-inserting type quick connection structure, a quick connection groove is formed in a valve shell (12), a lock pin is arranged on a filling shell (27), and the lock pin is matched with the quick connection groove; when the filling valve sleeve is separated, the filling gun is pushed downwards to the limit position, then the filling shell is rotated by 45 degrees manually, so that the locking pin on the shell exits the quick connecting groove on the valve shell, and the locking state of the filling valve sleeve is released;

the ejector rod (13) is provided with a limiting part, and the limiting part is matched with the valve spring seat (15); the valve shell (12) is provided with a quick connecting groove, the quick connecting groove is matched with the locking part of the plug (17), and the plug (17) is matched with the valve shell (12) in a sealing mode.

2. A filling valve kit according to claim 1, characterized in that: the ejector rod (13) is locked on the valve shell (12) through the valve nut (11).

3. A filling valve kit according to claim 1, characterized in that: the adapter block (23) and the adapter (24) are provided with a bearing (212) therebetween, the adapter (24) is connected with the bearing (212) through a locking nut (213), the adapter block (23) is connected with the plug cover (21), and the plug cover (21) tightly supports the bearing (212).

4. A filling valve kit according to claim 1, characterized in that: the axial sealing surface of the filling valve core (211) is in sealing fit with the R surface of the filling shell (27), and a sealing element in sealing fit with the filling shell (27) is arranged on the filling valve core (211).