CN215949980U

CN215949980U - Spherical sealing valve

Info

Publication number: CN215949980U
Application number: CN202121723963.6U
Authority: CN
Inventors: 兰林; 周玉东; 王新中
Original assignee: Guizhou Xinan Aviation Machinery Co Ltd
Current assignee: Guizhou Xinan Aviation Machinery Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-03-04
Anticipated expiration: 2031-07-28

Abstract

The utility model provides a spherical sealed valve, includes bush, plunger, spherical valve and valve seat, the plunger is located bush left side inside sliding connection, plunger right-hand member face center is equipped with the hemisphere groove, be equipped with the partition layer in the bush, the partition layer is located the plunger right side, be equipped with sliding through hole along the axis direction in the partition layer, sliding connection has spherical valve in the sliding through hole, spherical valve left side end department matches with the hemisphere groove, bush right side internal connection has the valve seat, the valve seat is located partition layer right side, the concentric groove coaxial with sliding through hole has been seted up to valve seat left side terminal surface, the tank bottom in concentric groove is equipped with concentric hole. The spherical sealing valve structure provided by the utility model adopts the spherical valve, so that the sealing surface is distributed over the whole spherical cambered surface, even if part of the spherical cambered surface is damaged, a good sealing effect can be still achieved, and abnormal sealing is avoided.

Description

Spherical sealing valve

Technical Field

The utility model relates to the technical field of hydraulic braking of an airplane wheel braking system, in particular to a spherical sealing valve.

Background

The hydraulic mechanical airplane wheel braking system in China mainly comprises an airplane wheel braking transmitter, a braking distribution valve and a braking device, wherein a driver pedal is connected with the airplane wheel braking transmitter, the driver transmits operating force to the braking transmitter through the pedal to push a piston of the braking transmitter to move so as to convey oil into the braking distribution valve to open the distribution valve, and the distribution valve decompresses high-pressure oil and then receives the decompressed oil into the braking device to brake.

At present, valve devices in brake distribution valves in China mostly adopt a conical valve form, when the conical valve forms a seal with a plunger, a seal effective surface is only one surface of the conical valve contacting with the bottom of the plunger, and once the plunger or the conical valve is worn, the product is easily abnormal in seal, so that abnormal pressure supply is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the spherical sealing valve is used for solving the problems, so that a sealing surface is distributed on the whole spherical cambered surface, and the sealing effect is improved.

In order to realize the purpose, the following technical scheme is adopted: a spherical sealing valve comprises a bush, a plunger, a spherical valve and a valve seat, wherein the plunger is positioned inside the left side of the bush and is in sliding connection with the left side of the bush, a hemispherical groove is arranged at the center of the right end face of the plunger,

a partition layer is arranged in the bush and is positioned on the right side of the plunger, a sliding through hole is arranged in the partition layer along the axis direction, a spherical valve is connected in the sliding through hole in a sliding manner, the left side end of the spherical valve is matched with the hemispherical groove,

bushing right side internal connection has the valve seat, the valve seat is located the partition layer right side, valve seat left side terminal surface has seted up the concentric groove coaxial with sliding through hole, the tank bottom of concentric groove is equipped with concentric hole, adopts spherical valve for sealed face spreads all over whole spherical cambered surface, even arouse partial damage, still can play good sealed effect.

Preferably, a first through hole is formed in the plunger along the axis direction, second through holes are uniformly formed in the plunger along the radius direction, one end of the first through hole is communicated with the bottom of the hemispherical groove, the other end of the first through hole is communicated with one end of the second through hole, and first oil holes communicated with the other end of the second through hole are uniformly formed in the bushing; evenly be equipped with a plurality of inlet ports in the wall layer, be equipped with a plurality of second oilholes on the bush, plunger right side terminal surface communicates with inlet port and second oilhole respectively, the inlet port communicates with the concentric hole, ensures fluidic circulation, realizes the device normal operating.

Preferably, the ball valve outer lane is equipped with the cylinder boss, the cylinder boss is located the partition layer right side, cylinder boss right side is equipped with the ejector pin along the axis direction, and ejector pin and cylinder boss junction cross-section are loudspeaker shape, the other end of ejector pin is located the inside swing joint of concentric hole.

Preferably, the bushing, the plunger and the valve seat are provided with sealing grooves along the outer side of the circumferential direction, and sealing rings are arranged in the sealing grooves, so that sealing between the bushing and the plunger and sealing between the bushing and the valve seat are realized.

Preferably, the cross-section of the right side end of the plunger is stepped shaft-shaped, and the hemispherical groove is located at the central end of the stepped shaft-shaped, so that effective circulation of fluid is ensured.

Preferably, the partition layer left end face is equipped with the annular arch that uses sliding through hole as the axle center, the protruding cross-section of annular is the hemisphere, plunger right side end face is equipped with the ring channel, the ring channel with the protruding phase-match of annular, and the cross-sectional structure of this ring channel is the same with the cross-sectional structure of hemisphere groove, and at this moment, the glide plane between ball valve and the partition layer is equipped with seal groove and sealing washer to further improve sealed guarantee and sealed effect, also can play good sealing performance even when ball valve and the sealed face of plunger are inefficacy.

The utility model has the following beneficial effects: under the working condition, the sealing structure of the conical valve cannot be repaired after being damaged due to the existence of only one sealing surface, so that the sealing property is unstable, and the pressure supply abnormality of the distribution valve is influenced; the spherical sealing valve structure provided by the utility model adopts the spherical valve, so that the sealing surface is distributed over the whole spherical cambered surface, and even if part of damage is caused, a good sealing effect can be still achieved; the hemispherical annular bulge and the annular groove matched with the hemispherical annular bulge further improve the sealing guarantee, and a good sealing effect can be achieved even if the sealing surface of the spherical valve and the plunger piston fails, so that abnormal sealing is avoided.

Drawings

Fig. 1 is a schematic view of a spherical sealing valve structure according to the present invention.

In the figure, 1-bush, 2-plunger, 3-spherical valve, 4-valve seat, 5-hemispherical groove, 6-partition layer, 7-sliding through hole, 8-concentric groove, 9-concentric hole, 10-first through hole, 11-second through hole, 12-first oil hole, 13-oil inlet hole, 14-second oil hole, 15-cylindrical boss, 16-ejector pin, 17-seal groove, 18-seal ring.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to the attached drawing 1, a spherical sealing valve, including bush 1, plunger 2, spherical valve 3 and valve seat 4, plunger 2 is located 1 left side inside sliding connection of bush, 2 right-hand member face centers of plunger are equipped with hemisphere groove 5, be equipped with partition layer 6 in the bush 1, partition layer 6 is located 2 right sides of plunger, be equipped with sliding through hole 7 along the axis direction in partition layer 6, sliding connection has spherical valve 3 in sliding through

hole

7, 3 left side end departments of spherical valve and hemisphere groove 5 phase-matches, 1 right side internal connection of bush has valve seat 4, valve seat 4 is located partition layer 6 right sides, valve seat 4 left side terminal surface is seted up with the coaxial concentric groove 8 of sliding through hole 7, the tank bottom in concentric groove 8 is equipped with concentric hole 9.

A first through hole 10 is formed in the plunger 2 along the axis direction, second through holes 11 are uniformly formed in the plunger 2 along the radius direction, one end of the first through hole 10 is communicated with the bottom of the hemispherical groove 5, the other end of the first through hole 10 is communicated with one end of the second through hole 11, and first oil holes 12 communicated with the other end of the second through hole 11 are uniformly formed in the bush 1; evenly be equipped with a plurality of inlet ports 13 in the partition layer 6, be equipped with a plurality of second oilholes 14 on the

bush

1, 2 right side end faces of plunger communicate with inlet port 13 and second oilhole 14 respectively, inlet port 13 and concentric hole 9 intercommunication.

The outer ring of the spherical valve 3 is provided with a cylindrical boss 15, the cylindrical boss 15 is positioned on the right side of the partition layer 6, the right side of the cylindrical boss 15 is provided with an ejector rod 16 along the axis direction, and the other end of the ejector rod 16 is positioned in the concentric hole 9 and movably connected with the inside.

The bush 1, the plunger 2 and the valve seat 4 are provided with a sealing groove 17 along the outer side of the circumferential direction, and a sealing ring 18 is arranged in the sealing groove 17.

The cross section of the right end of the plunger 2 is in a stepped shaft shape.

Partition 6 left end face in layer is equipped with and uses sliding through hole 7 as the annular of axle center protruding, the protruding cross-section of annular is the hemisphere, 2 right sides of plunger terminal surfaces are equipped with the ring channel, the ring channel with the protruding phase-match of annular.

The working principle of the utility model is as follows: when the plunger 2 is used, the plunger 2 moves towards one side of the partition layer 6 under the action of external force, so that the hemispherical groove 5 arranged at the end of the plunger 2 is matched with the left end of the spherical valve 3, the flowing direction of fluid is changed simultaneously, sealing is realized, and the fluid flows out through the second oil hole 14; and the right side of the spherical valve 3 is under the action of fluid pressure and the action force of a spring, and the left side of a cylindrical boss 15 arranged on the spherical valve 3 is attached to the partition layer 6 in the prior art, so that the spherical valve 3 cannot move rightwards when the spherical valve 3 is sealed with the plunger 2.

And partition 6 left end face in layer is equipped with the annular arch that uses sliding through hole 7 as the axle center, the protruding cross-section of annular is the hemisphere, 2 right side terminal surfaces of plunger are equipped with the ring channel, the ring channel with the protruding phase-match of ring channel, and the cross-sectional structure of this ring channel is the same with the cross-sectional structure of hemisphere groove, and at this moment, the glide plane between spherical valve 3 and the partition layer 6 is equipped with seal groove and sealing washer, realizes the sealed of spherical valve 3 and partition layer 6 contact surface, even also can play good sealing performance when spherical valve 3 and the sealed face of plunger 2 are inefficacy.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a spherical sealed valve, includes bush (1), plunger (2), spherical valve (3) and valve seat (4), its characterized in that: plunger (2) are located bush (1) left side inside sliding connection, plunger (2) right-hand member face center is equipped with hemisphere groove (5), be equipped with partition layer (6) in bush (1), partition layer (6) are located plunger (2) right side, be equipped with sliding through hole (7) along the axis direction in partition layer (6), sliding through hole (7) internal sliding connection has spherical valve (3), spherical valve (3) left side end department and hemisphere groove (5) phase-match, bush (1) right side internal connection has valve seat (4), valve seat (4) are located partition layer (6) right side, valve seat (4) left side terminal surface seted up with sliding through hole (7) coaxial concentric groove (8), the tank bottom of concentric groove (8) is equipped with concentric hole (9).

2. A spherical sealing shutter according to claim 1, characterized in that: a first through hole (10) is formed in the plunger (2) along the axis direction, second through holes (11) are uniformly formed in the plunger (2) along the radius direction, one end of the first through hole (10) is communicated with the bottom of the hemispherical groove (5), the other end of the first through hole (10) is communicated with one end of the second through hole (11), and first oil holes (12) communicated with the other end of the second through hole (11) are uniformly formed in the bushing (1); evenly be equipped with a plurality of inlet ports (13) in partition layer (6), be equipped with a plurality of second oilholes (14) on bush (1), plunger (2) right side terminal surface communicates with inlet port (13) and second oilhole (14) respectively, inlet port (13) and concentric hole (9) intercommunication.

3. A spherical sealing shutter according to claim 1 or 2, characterized in that: the ball valve (3) outer lane is equipped with cylinder boss (15), cylinder boss (15) are located partition layer (6) right side, cylinder boss (15) right side is equipped with ejector pin (16) along the axis direction, the other end of ejector pin (16) is located the inside swing joint of concentric hole (9).

4. A spherical sealing shutter according to claim 1 or 2, characterized in that: the sealing device is characterized in that a sealing groove (17) is formed in the outer sides of the bushing (1), the plunger (2) and the valve seat (4) in the circumferential direction, and a sealing ring (18) is arranged in the sealing groove (17).

5. A spherical sealing shutter according to claim 1 or 2, characterized in that: the cross section of the right side end of the plunger (2) is in a stepped shaft shape.