CN2615050Y

CN2615050Y - Aero-pressure fueling joint

Info

Publication number: CN2615050Y
Application number: CN 03220759
Authority: CN
Inventors: 郑友松; 郑蒙刚; 阮信娣
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-26
Filing date: 2003-03-26
Publication date: 2004-05-12
Anticipated expiration: 2013-03-26

Abstract

An aviation pressure oiling connector comprises a connector valve, a pressure stabilization valve connected with the bottom portion of the connector valve, a rubber hose connector connected with the bottom portion of the pressure stabilization valve, and a butt-joint handle assembly. A chimb is provided around the top portion of a handle seat which is beneath a rubber sheath and fixed on a valve body of the connector valve, and the chimb of the handle seat is arranged outside the rubber sheath and is inosculated with the rubber sheath. The utility model improves existing aviation pressure oiling connectors, the position of the handle seat is moved forwards, the chimb of the handle seat as a hoop of the rubber sheath is used for preventing desquamation of the rubber sheath, and the chimb and the handle seat form an integer with enough intensity and without sheath pressing plate.

Description

Aviation pressure oiling joint

Technical field

The utility model relates to and is specially adapted for stationary aircraft gas filed liquid and carries facility, belongs to a kind of aviation pressure oiling joint.

Background technology

Aviation pressure oiling joint comprises fittings body, butt joint copper dish, rubber hose coupling, protective device, pressure maintaining valve, handle, valve base, adds the oil valve assembly, guide frame, with the electrostatic conductor assembly, wherein protective device has rubber sheath.The valve body of above-mentioned pressure maintaining valve has inside and outside housing, its body skin shape is like the bulge ampuliform, partly form by top column part, billiard table partial sum bottom, middle part inverted round table, connect by two lugs between the inside and outside housing, a lug therein is provided with the air extractor vent that runs through lug and connect with the inside and outside housing of this side, respectively be provided with terminal pad on column part and the inverted round table part, inner housing is provided with the fuel return hole of upward and downward, and the annular space between the inside and outside housing is oily passage.Because when the fueling connection on aviation pressure oiling joint and the aircraft breaks away from, rubber sheath can be subjected to bigger pulling force, because of rubber sheath does not have pressure beam yielding, come off from butt joint copper dish and fittings body easily, for preventing that rubber sheath from coming off, the utility model patent specification sheets of Chinese patent Granted publication CN2383761Y discloses a kind of aviation pressure oiling joint, it takes rubber sheath to be enclosed within the butt joint copper dish and the fittings body outside by the sheath pressing plate, but because the sheath pressing plate adopts stalloy to make, so rubber sheath is when being subjected to pulling force, with the distortion of sheath pressing plate bonded assembly stalloy, can influence the use of joint; Secondly the oily passage of above-mentioned pressure maintaining valve valve body is wide design, causes the flow velocity instability; Inner housing flat is exposed to oily channel lumens inflow point in addition, lug is in the oily passage, flat and the rectangle lug of inner housing all becomes the obstruction that fluid flows, be connected for the right angle between column part inwall and the billiard table part inwall, make fluid partly enter column part individual 90 ° large turn is arranged from billiard table, increase the resistance that fluid flows, caused bigger oil pressure loss.

The utility model content

Main purpose of the present utility model is to propose the aviation pressure oiling joint that a kind of rubber sheath is connected firmly; Further purpose of the present utility model is to propose the little aviation pressure oiling joint of a kind of fuel flow resistance.

The utility model comprises joint valve, is connected the pressure maintaining valve of joint valve bottom, is connected the rubber hose coupling of pressure maintaining valve bottom and docks handle assembly; Be provided with the connecting rod mechanism that joint valve assembly, valve base, butt plate, rubber sheath and control joint valve assembly move up and down in the valve body of described joint valve, butt plate is in the periphery of joint valve assembly and is fixed on the valve base, and rubber sheath is nested with the outside at butt plate and valve base; The valve body of described pressure maintaining valve has inner housing, body skin and is connected two lugs of inside and outside shell, and the annular space between the inside and outside housing is oily passage, and body skin partly is made up of column part, billiard table partial sum inverted round table; Described butt joint handle has handle set and handle; For achieving the above object, the utility model takes the top of handle set to be provided with chimb all around, and handle set is in the below of rubber sheath and is fixed on the valve body of joint valve, and the chimb of handle set is in the outside of rubber sheath and coincide with rubber sheath.

Oily passage uniform cross section between the inside and outside housing of above-mentioned pressure maintaining valve.

Mild transition is connected between above-mentioned body skin column part inwall and billiard table part inwall.

Angle α between above-mentioned column part inwall and billiard table part inwall is 105 °～108 °.

The bottom of above-mentioned inner housing and two lugs are streamline contour.

The utility model is that existing aviation pressure oiling joint is improved, and the position of handle seat is to reach, and the chimb on the handle set is as the hoop cover of rubber sheath, prevent that rubber sheath from coming off, chimb and handle set one have enough intensity, and have save the sheath pressing plate.Because the valve body of pressure maintaining valve changes oily passage widely is designed to the uniform cross section design; The bottom of inner housing and two lugs are the streamline contour design; Fluid partly enters column part from billiard table a mild turnover, so oil pressure of the present utility model loss is little.

Description of drawings

Fig. 1 is the utility model configuration diagram;

Fig. 2 is pressure maintaining valve valve body figure;

Fig. 3 is the birds-eye view of Fig. 2;

Fig. 4 is the A-A section-drawing of Fig. 2;

Fig. 5 is the B-B section-drawing of Fig. 2;

Fig. 6 is the C-C cutaway view of Fig. 3;

Fig. 7 is that the P of Fig. 2 is to diagrammatic sketch;

Fig. 8 is pressure maintaining valve valve figure;

Fig. 9 is the M-M view of Fig. 8;

Figure 10 is the N-N section-drawing of Fig. 9.

The specific embodiment

Embodiment comprises joint valve 1, is connected the pressure maintaining valve 2 of joint valve 1 bottom, is connected the rubber hose coupling 3 of pressure maintaining valve 2 bottoms and docks handle assembly 4; Be provided with the connecting rod mechanism 15 that joint valve assembly 11, valve base 12, butt plate 13, rubber sheath 14 and control joint valve assembly 11 move up and down in the valve body 10 of described joint valve 1, butt plate 13 is in the periphery of joint valve 11 and is fixed on the valve base 12, and rubber sheath 14 is nested with the outside at butt plate 13 and valve base 12; Be provided with chimb 41-1 around the top of handle set 41, handle set 41 is in the below of rubber sheath 14 and is fixed on the valve body 10 of joint valve 1, and the chimb 41-1 of handle set 41 is in the outside of rubber sheath 14 and coincide with rubber sheath 14.

Pressure maintaining valve 2 has voltage stabilizing valve 28, valve body is made up of inner housing 21 and body skin 22, its body skin 22 shapes are like the bulge ampuliform, be made up of top column part 22-1, middle part billiard table part 22-2 and bottom inverted round table part 22-3, the annular space between the inside and

outside housing

21,22 is oily passage 26; The cross section of the inlet part 26-1 of oil passage 26 equates with the cross-sectional sizes of exit portion 26-2; Connected by two

lugs

23,24 between the inside and

outside housing

21,22, two

lugs

23,24 all adopt streamline contour, are provided with the air extractor vent 25 that runs through lug 23 and connect with the inside and outside housing of this side in the lug 23; Be provided with chain-wales 22-5 on the body skin and around air extractor vent 5, be provided with bolt 28 in the air extractor vent 25; Respectively be provided with terminal pad 27-1,27-2 on column part 22-1 and the inverted round table part 22-3, inner housing 21 is provided with the fuel return hole 21-1 and the connecting bore 21-5 of upward and downward, inner housing 21 end faces are provided with the endless groove 21-2 that matches with the ring-type edge of a knife bottom surface of voltage stabilizing valve 28, inner housing 22 bottom surfaces are streamline contour, taking radius is the sphere of 24mm, and swept-out connecting rod 28-1 is adopted at the top of voltage stabilizing valve 28.Mild transition is connected between column part 2-1 inwall and billiard table part 2-2 inwall, angle α between body skin column part 22-1 inwall and billiard table part 22-2 inwall is 106 °, is meant the tangent line and the folded angle of cylinder axial line of the billiard table circular arc of a bit being done that intersects by billiard table camber line and cylinder straight line on same cross section between body skin column part 22-1 inwall and billiard table part 22-2 inwall.The arc radius R of the body skin billiard table part 22-2 of present embodiment is 26mm, and this billiard table center of circle 0 is arranged on apart from the body skin end face 22-4 62mm of place, apart from the cylinder 21 inwall straight line 21-3 7.5mm of place, and obtaining angle α therefrom is 106 °; In addition, the end face of body skin 22 is 54mm to inner housing 21 end faces apart from E, and the length F of the column part 22-1 of body skin 22 is 37mm, and inner housing billiard table radius of curvature r is 21mm, its center of circle and billiard table concentric.

Embodiment 2

Basic structure is identical with embodiment 1, the length F of the column part 2-1 of body skin 2 is 39mm, the arc radius of the billiard table part 2-2 of body skin 2 is 27mm, the center of circle is arranged on apart from the body skin end face 63mm of place, apart from cylinder 1 inwall 7mm place, and the angle α between body skin column part 2-1 inwall and billiard table part 2-2 inwall is 105 °.

Embodiment 3

Basic structure is identical with embodiment 1, the length F of the column part 2-1 of body skin 2 is 39mm, the arc radius of the billiard table part 2-2 of body skin 2 is 27mm, the center of circle is arranged on apart from the body skin end face 63mm of place, apart from cylinder 1 inwall 7mm place, and the angle α between body skin column part 2-1 inwall and billiard table part 2-2 inwall is 107.92 °.

Claims

1, a kind of aviation pressure oiling joint comprises joint valve (1), is connected the pressure maintaining valve (2) of joint valve (1) bottom, the rubber hose coupling (3) that is connected pressure maintaining valve (2) bottom and butt joint handle assembly (4); Be provided with the connecting rod mechanism (15) that joint valve assembly (11), valve base (12), butt plate (13), rubber sheath (14) and control joint valve assembly (11) move up and down in the valve body (10) of described joint valve (1), butt plate (13) is in the periphery of joint valve assembly (11) and is fixed on the valve base (12), and rubber sheath (14) is nested with the outside at butt plate (13) and valve base (12); The valve body of described pressure maintaining valve (2) has inner housing (21), body skin (22) and two lugs that are connected inside and outside shell (23,24), annular space between the inside and outside housing (21,22) is oily passage (26), and body skin (2) is made up of column part (22-1), billiard table part (22-2) and inverted round table part (22-3); Described butt joint handle (4) has handle set (41) and handle (42); It is characterized in that: be provided with chimb (41-1) around the top of handle set (41), handle set (41) is in the below of rubber sheath (14) and is fixed on the valve body (10) of joint valve (1), and the chimb (41-1) of handle set (41) is in the outside of rubber sheath (14) and coincide with rubber sheath (14).

2, aviation pressure oiling joint according to claim 1 is characterized in that: oily passage (26) uniform cross section between the inside and outside housing of pressure maintaining valve (2) (21,22).

3, aviation pressure oiling joint according to claim 2 is characterized in that: mild transition is connected between body skin column part (22-1) inwall and billiard table part (2-2) inwall.

4, aviation pressure oiling joint according to claim 3 is characterized in that: the angle α between above-mentioned column part (22-1) inwall and billiard table part (22-2) inwall is 105 °～108 °.

5, aviation pressure oiling joint according to claim 4 is characterized in that: the bottom (22-1) of inner housing (22) and two lugs (23,24) are streamline contour.