Two-stage telescopic oil receiving probe rod for aircraft fuel system

Abstract

The utility model discloses a two-stage telescopic oil receiving probe rod for an aircraft fuel system, which comprises a first-stage probe rod assembly, a connecting rod piece and a second-stage probe rod assembly which are sequentially connected from top to bottom, and the first-stage probe rod assembly comprises a first-stage oil receiving probe rod and a first connecting rod cylinder; the second-stage probe rod assembly comprises a second-stage oil receiving probe rod and a second connecting rod cylinder; one end of the first connecting rod cylinder and one end of the second connecting rod cylinder are rotationally sleeved with the first-stage oil receiving probe rod and the second-stage oil receiving probe rod respectively, and the other end of the first connecting rod cylinder and the other end of the second connecting rod cylinder are in threaded connection with the upper end and the lower end of the connecting rod piece respectively; the other end of the first connecting rod cylinder and the other end of the second connecting rod cylinder are detachably connected with the end of the first-stage oil receiving probe rod and the end of the second-stage oil receiving probe rod through a first positioning jackscrew and a second positioning jackscrew respectively. The telescopic oil receiving probe rod can be adjusted in a telescopic mode, can be stably fixed after being adjusted, and is convenient to install and good in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil receiving probes, and in particular relates to a two-stage telescopic oil receiving probe for an aircraft fuel system. Background Art

[0002] The aerial refueling probe belongs to the aircraft fuel system. Its main function is to transport fuel under safe and reliable conditions and to complete the corresponding volume of fuel transportation within the specified time under the specified pressure and temperature conditions. When a large fixed-wing aircraft is refueling in the air, the aerial refueling probe is docked with the cone sleeve of the refueling pod of the tanker to form an aerial refueling channel. Aircraft aerial refueling devices have various structural forms such as fixed, straight rod, rocker arm, retractable, and telescopic. The straight rod refueling device needs to reduce weight and increase rigidity while meeting the conditions of safe and reliable aerial refueling. However, the existing refueling probe does not have a telescopic function. It is difficult to adjust it according to the installation spacing during installation, and its applicability is low. Therefore, a two-stage telescopic refueling probe for aircraft fuel systems is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a two-stage telescopic oil receiving probe for an aircraft fuel system, aiming to solve the above-mentioned problems.

[0004] The utility model is mainly realized through the following technical solutions:

[0005] A two-stage telescopic oil-receiving probe for an aircraft fuel system comprises a first-stage probe assembly, a connecting rod and a second-stage probe assembly connected in sequence from top to bottom, the first-stage probe assembly comprising a first-stage oil-receiving probe and a first connecting rod barrel, the second-stage probe assembly comprising a second-stage oil-receiving probe and a second connecting rod barrel; one end of the first connecting rod barrel and the second connecting rod barrel are rotatably sleeved inside the first-stage oil-receiving probe and the second-stage oil-receiving probe, respectively, and the other ends of the first connecting rod barrel and the second connecting rod barrel are respectively threadedly connected to the upper and lower ends of the connecting rod; the side walls of the first connecting rod barrel and the second connecting rod barrel are detachably connected to the first-stage oil-receiving probe and the second-stage oil-receiving probe by means of a first positioning screw and a second positioning screw, respectively.

[0006] In order to better realize the present utility model, further, the first-level probe rod assembly also includes a first mounting ring, and the second-level probe rod assembly also includes a second mounting ring; the other ends of the first connecting rod tube and the second connecting rod tube are fixedly provided with a first mounting ring and a second mounting ring, the first mounting ring is threadedly connected to the upper end of the connecting rod member, and the second mounting ring is threadedly connected to the lower end of the connecting rod member; the first mounting ring and the second mounting ring are detachably connected to the ends of the first-level oil receiving probe rod and the second-level oil receiving probe rod through the first positioning screw and the second positioning screw respectively.

[0007] In order to better realize the present utility model, further, the first mounting ring and the second mounting ring are respectively provided with a plurality of first mounting through holes and second mounting through holes along the circumferential side, one end of the first positioning top screw passes through the first mounting through hole and is detachably connected to the end of the first-stage oil receiving probe rod, and one end of the second positioning top screw passes through the second mounting through hole and is detachably connected to the end of the second-stage oil receiving probe rod.

[0008] In order to better implement the present invention, further, the outer diameters of the first mounting ring and the second mounting ring are respectively equal to the outer diameters of the first connecting rod tube and the second connecting rod tube.

[0009] In order to better implement the present invention, further, both ends of the connecting rod pass through the first installation ring and the second installation ring respectively and extend to the inside of the first connecting rod tube and the second connecting rod tube.

[0010] In order to better implement the present invention, further, a first locking nut and a second locking nut are respectively installed on the upper and lower ends of the connecting rod.

[0011] In order to better realize the present invention, further, one end of the first connecting rod barrel and the second connecting rod barrel are respectively rotatably connected to the inside of the first oil receiving probe rod and the second oil receiving probe rod through bearings.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model can adjust the distance between the first-level oil receiving probe rod and the second-level oil receiving probe rod by rotating the first-level oil receiving probe rod and the second-level oil receiving probe rod, and then, by tightening the first locking nut and the second locking nut, the first-level oil receiving probe rod and the second-level oil receiving probe rod can be locked with the connecting rod, thereby completing the adjustment of the length of the oil receiving probe rod; after the adjustment is completed, the utility model loosens the first top screw and the second top screw to achieve a rotational connection between the first-level oil receiving probe rod and the first connecting rod barrel, and a rotational connection between the second-level oil receiving probe rod and the second connecting rod barrel, thereby achieving adjustment of the end angles of the first-level oil receiving probe rod and the first-level oil receiving probe rod, thereby facilitating the installation of the oil receiving probe rod. The utility model can achieve telescopic adjustment of the oil receiving probe rod, and can be stably fixed after adjustment, and is easy to install, with good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the two-stage telescopic oil receiving probe for the aircraft fuel system of the utility model;

[0015] Figure 2 This is an exploded view of the first-stage probe assembly;

[0016] Figure 3 Exploded view of the secondary probe assembly.

[0017] Among them: 1-first-level probe rod assembly, 101-first-level oil-receiving probe rod, 102-first connecting rod barrel, 103-first mounting ring, 104-first locking nut, 105-first positioning top screw, 106-first mounting through hole, 2-connecting rod, 3-second-level probe rod assembly, 301-second-level oil-receiving probe rod, 302-second connecting rod barrel, 303-second mounting ring, 304-second locking nut, 305-second positioning top screw, 306-second mounting through hole. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0020] Example 1:

[0021] A two-stage telescopic refueling probe for an aircraft fuel system includes a first-stage probe assembly 1 and a second-stage probe assembly 3. The first-stage probe assembly 1 is connected to the second-stage probe assembly 3 via a connecting rod 2. The ends of the connecting rod 2 are threadedly connected to the first-stage probe assembly 1 and the second-stage probe assembly 3, respectively. A first locking nut 104 and a second locking nut 304 are provided at each end of the connecting rod 2. The sidewalls of the first connecting rod barrel 102 and the second connecting rod barrel 302 are detachably connected to the first-stage refueling probe 101 and the second-stage refueling probe 301, respectively, via a first positioning screw 105 and a second positioning screw 305. Specifically, the outer end surface of the connecting rod 2 is threaded.

[0022] Preferably, the first-stage probe assembly 1 includes a first-stage oil-receiving probe 101, in which a first connecting rod barrel 102 is detachably fixedly installed. One end of the first connecting rod barrel 102 is rotatably sleeved inside the first-stage oil-receiving probe 101, and the other end extends out of the first-stage oil-receiving probe 101 and is threadedly connected to one end of the connecting rod 2. The other end of the first connecting rod barrel 102 is detachably connected to the end of the first-stage oil-receiving probe 101 via a first jackscrew.

[0023] Preferably, the secondary probe assembly 3 includes a secondary oil-receiving probe 301, within which a second connecting rod barrel 302 is detachably fixedly mounted. One end of the second connecting rod barrel 302 is rotatably sleeved within the secondary oil-receiving probe 301, and the other end extends beyond the secondary oil-receiving probe 301 and is threadedly connected to the other end of the connecting rod 2. The other end of the second connecting rod barrel 302 is detachably connected to the end of the secondary oil-receiving probe 301 via a second jackscrew.

[0024] Preferably, a first mounting ring 103 is fixedly mounted on the lower end of the first connecting rod barrel 102, and the inner wall of the first mounting ring 103 has threads matching the connecting rod 2. The first mounting ring 103 is threadedly connected to the connecting rod 2, and the upper end of the connecting rod 2 passes through the first mounting ring 103 and extends into the interior of the first connecting rod barrel 102. Specifically, a plurality of first mounting through-holes 106 are formed in an annular array at the lower end of the first mounting ring 103, and the first mounting through-holes 106 are detachably fixedly connected to the lower end of the first-stage oil receiving probe 101 via first jackscrews.

[0025] Preferably, a second mounting ring 303 is fixedly mounted on the upper end of the second connecting rod barrel 302, and the inner wall of the second mounting ring 303 has threads matching the connecting rod 2. The second mounting ring 303 is threadedly connected to the connecting rod 2, and the upper end of the connecting rod 2 passes through the second mounting ring 303 and extends into the interior of the second connecting rod barrel 302. Specifically, a plurality of second mounting through-holes 306 are formed in a circular array at the upper end of the second mounting ring 303, and the second mounting through-holes 306 are detachably fixedly connected to the upper end of the secondary oil receiving probe 301 via second jackscrews.

[0026] During use, the present invention can be used to adjust the length by tightening the first and second jackscrews to secure the first and second oil-receiving rods 101 to the first connecting rod barrel 102, and the second and second oil-receiving rods 301 to the second connecting rod barrel 302. The first and second oil-receiving rods 101 and 301 can then be rotated to adjust the distance between them. The threads at both ends of the corresponding connecting rods 2 have opposite or identical rotation directions. Alternatively, the first and second locking nuts 104 and 304 can be used to secure the length of one end, i.e., to secure the position of the first and second oil-receiving rods 101 and 301, respectively, to ensure the stability of length adjustment. Alternatively, the first and second locking nuts 104 and 304 can be used to lock the position of one end, allowing for flexible adjustment of the length of the other end. After length adjustment, the first and second jackscrews can be loosened to achieve flexible rotational adjustment of the first and second oil-receiving rods 101 and 301, thereby facilitating installation of the oil-receiving rods and providing excellent practicality.

[0027] Example 2:

[0028] A two-stage telescopic oil receiving probe for an aircraft fuel system, such as Figure 1 As shown, it includes a first-level probe rod assembly 1, a connecting rod 2 and a second-level probe rod assembly 3 arranged in sequence from top to bottom.

[0029] like Figure 2 As shown, the first-stage probe assembly 1 includes a first-stage oil-receiving probe 101, within which a first connecting rod barrel 102 is detachably fixedly mounted. This first connecting rod barrel 102 detachably fits over the upper end of a connecting rod member 2. The upper end of the first connecting rod barrel 102 is rotatably connected to the inner wall of the first-stage oil-receiving probe 101 via a bearing. A first mounting ring 103 is fixedly mounted at the lower end of the first connecting rod barrel 102. The inner wall of the first mounting ring 103 has threads that match the connecting rod member 2. The first mounting ring 103 is threadedly connected to the connecting rod member 2, with the upper end of the connecting rod member 2 passing through the first mounting ring 103 and extending into the interior of the first connecting rod barrel 102. A first locking nut 104 is threadedly mounted on the connecting rod member 2 and located at the lower end of the first mounting ring 103.

[0030] like Figure 3As shown, the secondary probe assembly 3 includes a secondary oil-receiving probe 301, within which a second connecting rod barrel 302 is detachably fixedly mounted. This second connecting rod barrel 302 detachably fits over the lower end of the connecting rod 2. The lower end of the second connecting rod barrel 302 is rotatably connected to the inner wall of the secondary oil-receiving probe 301 via a bearing. A second mounting ring 303 is fixedly mounted on the upper end of the second connecting rod barrel 302. The inner wall of the second mounting ring 303 has threads that match the connecting rod 2. The second mounting ring 303 is threadedly connected to the connecting rod 2, and the upper end of the connecting rod 2 passes through the second mounting ring 303 and extends into the interior of the second connecting rod barrel 302. A second locking nut 304 is threadedly mounted on the connecting rod 2, located above the second mounting ring 303.

[0031] A plurality of first mounting through holes 106 are formed in an annular array at the lower end of the first mounting ring 103 , and the first mounting through holes 106 are detachably fixedly connected to the lower end of the first-stage oil receiving probe 101 via first positioning screws 105 .

[0032] A plurality of second mounting through holes 306 are formed in a circular array on the upper end of the second mounting ring 303 , and the second mounting through holes 306 are detachably fixedly connected to the upper end of the secondary oil receiving probe 301 via second positioning screws 305 .

[0033] Working principle: Tightening the first positioning screw 105 and the second positioning screw 305 can realize the fixed connection between the first-level oil receiving probe rod 101 and the first connecting rod tube 102, and the fixed connection between the second-level oil receiving probe rod 301 and the second connecting rod tube 302; then, by rotating the first-level oil receiving probe rod 101 and the second-level oil receiving probe rod 301, the distance between the first-level oil receiving probe rod 101 and the second-level oil receiving probe rod 301 can be adjusted; finally, tightening the first locking nut 104 and the second locking nut 304 can realize locking the first-level oil receiving probe rod 101 and the second-level oil receiving probe rod 301 with the connecting rod 2, thereby completing the adjustment of the length of the oil receiving probe rod.

[0034] After the length adjustment is completed, loosen the first positioning screw 105 and the second positioning screw 305 to achieve the rotational connection between the first-level oil receiving probe rod 101 and the first connecting rod tube 102, and the rotational connection between the second-level oil receiving probe rod 301 and the second connecting rod tube 302, thereby achieving the adjustment of the first-level oil receiving probe rod 101 and the angle of the end of the first-level oil receiving probe rod 101, thereby facilitating the installation of the oil receiving probe rod.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.

Claims

1. A two-stage telescopic oil receiving probe for an aircraft fuel system, characterized in that: The invention comprises a first-stage probe rod assembly (1), a connecting rod (2) and a second-stage probe rod assembly (3) connected in sequence from top to bottom, wherein the first-stage probe rod assembly (1) comprises a first-stage oil receiving probe rod (101) and a first connecting rod barrel (102), and the second-stage probe rod assembly (3) comprises a second-stage oil receiving probe rod (301) and a second connecting rod barrel (302); one end of the first connecting rod barrel (102) and the second connecting rod barrel (302) are respectively rotatably sleeved inside the first-stage oil receiving probe rod (101) and the second-stage oil receiving probe rod (301), and the other ends of the first connecting rod barrel (102) and the second connecting rod barrel (302) are respectively threadedly connected to the upper and lower ends of the connecting rod (2); and the side walls of the first connecting rod barrel (102) and the second connecting rod barrel (302) are respectively detachably connected to the first-stage oil receiving probe rod (101) and the second-stage oil receiving probe rod (301) via a first positioning screw (105) and a second positioning screw (305).

2. The two-stage telescopic oil receiving probe for an aircraft fuel system according to claim 1, characterized in that: The first-stage probe rod assembly (1) further comprises a first mounting ring (103), and the second-stage probe rod assembly (3) further comprises a second mounting ring (303); the first mounting ring (103) and the second mounting ring (303) are fixedly provided at the other ends of the first connecting rod tube (102) and the second connecting rod tube (302); the first mounting ring (103) is threadedly connected to the upper end of the connecting rod member (2), and the second mounting ring (303) is threadedly connected to the lower end of the connecting rod member (2); the first mounting ring (103) and the second mounting ring (303) are detachably connected to the ends of the first-stage oil receiving probe rod (101) and the second-stage oil receiving probe rod (301) respectively through a first positioning screw (105) and a second positioning screw (305).

3. The two-stage telescopic oil receiving probe for an aircraft fuel system according to claim 2, characterized in that: The first mounting ring (103) and the second mounting ring (303) are respectively provided with a plurality of first mounting through holes (106) and second mounting through holes (306) along the circumference thereof; one end of the first positioning screw (105) passes through the first mounting through hole (106) and is detachably connected to the end of the first-stage oil receiving probe (101); and one end of the second positioning screw (305) passes through the second mounting through hole (306) and is detachably connected to the end of the second-stage oil receiving probe (301).

4. The two-stage telescopic oil receiving probe for an aircraft fuel system according to claim 2, characterized in that: The outer diameters of the first mounting ring (103) and the second mounting ring (303) are respectively equal to the outer diameters of the first connecting rod barrel (102) and the second connecting rod barrel (302).

5. A two-stage telescopic oil receiving probe for an aircraft fuel system according to any one of claims 2 to 4, characterized in that: The two ends of the connecting rod (2) pass through the first installation ring (103) and the second installation ring (303) respectively and extend to the inside of the first connecting rod barrel (102) and the second connecting rod barrel (302).

6. The two-stage telescopic oil receiving probe for an aircraft fuel system according to claim 1, characterized in that: A first locking nut (104) and a second locking nut (304) are respectively mounted on the upper and lower ends of the connecting rod (2).

7. The two-stage telescopic oil receiving probe for an aircraft fuel system according to claim 1, characterized in that: One end of the first connecting rod barrel (102) and the second connecting rod barrel (302) are rotatably connected to the inside of the first-stage oil receiving probe rod (101) and the second-stage oil receiving probe rod (301) respectively through bearings.

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