Maintenance tool for aircraft refueling connector

Abstract

A maintenance tool for an airplane refueling connector comprises a refueling connector body with a refueling valve opening and a maintenance tool body used for disassembling the refueling connector body, and the maintenance tool body comprises a valve positioner which comprises a handle section and a positioning section integrally connected to the top of the handle section. A positioning protrusion is arranged on the end face of the positioning section in the axial direction in an extending mode, a plurality of clamping blocks which extend outwards in the radial direction are arranged on the top of the positioning protrusion, and the positioning protrusion and the clamping blocks are clamped with clamping grooves in the bottom of the refueling valve opening in a matched mode. Under the condition that the whole refueling connector does not need to be disassembled, a valve part can be rapidly and accurately overhauled and maintained, the positioning section is clamped into the clamping groove of the valve opening, the multiple clamping blocks arranged on the positioning protrusion of the positioning section in the radial extending mode replace the effect of a flange on a refueling base in a matched mode, and the safety of the refueling connector is improved. And then the handle section is held to rotate by taking the circular positioning section as a rotating axis, so that the labor and time cost is reduced, and the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of aircraft refueling connector, specifically relates to a kind of overhaul tools of aircraft refueling connector. BACKGROUND

[0002] The aircraft pressure refueling connector is the key interface component in the aircraft pressure refueling system, and is the core device for ensuring the safe and efficient filling of fuel into the aircraft tank. It is mainly used in the field of military and civil aviation, especially for large fixed-wing aircraft and helicopters with high requirements for refueling efficiency. The valve component is the most core actuating element, and its main function is to tightly seal in the non-refueling state to prevent fuel leakage, and to quickly and smoothly open to form a smooth flow passage during refueling.

[0003] Since the valve component needs to complete a complete cycle from opening to closing every time the aircraft is refueled, its usage frequency is extremely high, which can easily cause damage to the valve and affect the sealing performance. When the existing valve component is overhauled and disassembled, it usually needs to rely on various complex professional tools, and then the pressure stabilizing valve, connecting seat and valve component are disassembled one by one. This not only causes the problem of too many tools and high cost, but also the way of disassembling one by one is inefficient and cannot cope with the emergency situation of single component damage of the valve component. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model aims to provide an overhaul tool for an aircraft refueling connector to solve the existing problems.

[0005] To achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: an overhaul tool for an aircraft refueling connector, comprising a refueling connector main body having a refueling valve port and an overhaul tool for disassembling the refueling connector main body, the overhaul tool comprising:

[0006] A valve positioner includes a handle section and a positioning section integrally connected to the top of the handle section. A positioning protrusion is provided on the end face of the positioning section in the axial direction. A plurality of clamping blocks are provided on the top of the positioning protrusion in the radial direction. The positioning protrusion and the plurality of clamping blocks are matched and clamped with the clamping groove at the bottom of the refueling valve port.

[0007] A dismounting universal handle includes a handle body and a first dismounting head and a second positioning head respectively provided on the top and bottom of the handle body, respectively, for cooperating with the dismounting of the refueling connector.

[0008] A combined overhaul device includes an overhaul rod and an overhaul shaft seat provided in the middle of the overhaul rod.

[0009] As a further improvement, the positioning section is circular, and a positioning hole is provided in the center of the positioning section,

[0010] As a further improvement, the positioning protrusion comprises a first protrusion and a second protrusion integrally arranged along the axial direction, wherein the first protrusion extends axially along the inner diameter edge of the positioning section and is arranged upward, and the second protrusion is coaxially and equally arranged upward along the top of the first protrusion.

[0011] As a further improvement, a plurality of matching holes are arranged along the circumference on the positioning protrusion, and the second protrusion is divided into a plurality of protrusion blocks by the matching holes.

[0012] As a further improvement, the clamping block is arranged at the middle of the protrusion block and is centrally symmetrically distributed along the central axis with the plurality of matching holes.

[0013] As a further improvement, a plurality of dismounting rods for dismounting the oil filler joint and a rotating handle for mounting the dismounting rod are further included, the dismounting rod comprises a rod body and a connecting handle arranged at one end of the rod body, and a hexagonal head for dismounting is arranged at the other end of the rod body, and the rotating handle has a clamping groove adapted to the connecting handle for facilitating dismounting.

[0014] As a further improvement, a first clamping hole and a second clamping hole arranged at intervals with the first clamping hole are arranged at the top of the first dismounting head, and a hexagonal block is arranged axially along the vertical direction of the second positioning head for assisting in dismounting the oil filler joint.

[0015] As a further improvement, the maintenance rod comprises a first maintenance rod and a second maintenance rod which are threadedly connected to each other, the first maintenance rod has a connecting section coaxially arranged at the top, and the connecting section has a threaded section arranged thereon, the second maintenance rod has a connecting groove arranged therein for accommodating the connecting section, and the connecting groove has a threaded wall threadedly matched with the threaded section.

[0016] As a further improvement, the top of the maintenance shaft seat has a joint cavity arranged thereon along the transverse direction, the joint cavity is adapted to the connecting section, two joint holes are formed on the outer wall of the maintenance shaft seat corresponding to the two openings of the joint cavity, and the bottom of the maintenance shaft seat has two positioning columns.

[0017] The utility model discloses a beneficial effect is: the utility model provides the valve positioner can under the condition that whole oil filler connector is not needed to disassemble, the valve component is maintained and overhauled fast and accurately, and the maintenance operation is convenient and fast, and the positioning section is clamped into the card slot of the valve mouth through the positioning section clamping, and the positioning convex of positioning section is matched with the flange on the oil filler seat, can be clamped into the card slot of the valve mouth, and the flange on the oil filler seat is replaced, then holds handle section and takes the positioning section as the rotation axis of circular shape and rotates, can control the valve handle and carry out the jacking operation easily, and the maintenance personnel observe and maintain the valve component jacking function abnormal condition fast, and still be equipped with the dismounting universal handle, even if the valve component needs to be replaced, the fixing bolt of steady pressure valve component can be disassembled fast, better reduce the input of manual and time cost, improve the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:

[0019] Figure 1 It is the valve positioner maintenance schematic drawing of the utility model embodiment;

[0020] Figure 2 It is the aircraft oil filler connector structure schematic drawing of the utility model embodiment;

[0021] Figure 3 It is the valve positioner structure schematic of the utility model embodiment Figure 1 ;

[0022] Figure 4 It is the valve positioner structure schematic of the utility model embodiment Figure 2 ;

[0023] Figure 5 It is the valve positioner maintenance operation schematic of the utility model embodiment Figure 1 ;

[0024] Figure 6 It is the valve positioner maintenance operation schematic of the utility model embodiment Figure 2 ;

[0025] Figure 7 It is the valve positioner maintenance operation schematic of the utility model embodiment Figure 3 ;

[0026] Figure 8 It is the assembly schematic drawing of the utility model embodiment dismounting rod and rotating handle;

[0027] Figure 9 It is the dismounting universal handle structure schematic drawing of the utility model embodiment;

[0028] Figure 10 The dismounting universal handle is used for the maintenance of the combined maintenance device.

[0029] Figure 11 The combined maintenance device is used for the maintenance of the combined maintenance device.

[0030] Figure 12 The combined maintenance device is used for the maintenance of the combined maintenance device.

[0031] Figure 13 The combined maintenance device is used for the maintenance of the combined maintenance device.

[0032] Main figure mark explanation:

[0033] 1, valve positioner;

[0034] 11, handle section; 12, positioning section;

[0035] 121, positioning hole; 122, positioning protrusion; 1221, first protrusion; 1222, second protrusion; 1223, matching hole; 1224, protrusion block; 123, clamping block;

[0036] 2, dismounting universal handle;

[0037] 21, handle body; 22, first dismounting head; 23, second positioning head; 231, first clamping hole; 232, second clamping hole; 233, hexagonal block;

[0038] 3, combined maintenance device;

[0039] 31, maintenance rod; 311, first maintenance rod; 312, second maintenance rod; 313, connecting section; 315, connecting groove;

[0040] 32, maintenance shaft base; 321, joint cavity; 322, joint hole; 323, positioning column;

[0041] 4, dismounting rod;

[0042] 41, rod body; 42, connecting handle; 43, hexagonal head;

[0043] 5, rotating handle; 51, clamping groove;

[0044] 6, oil filling connector main body;

[0045] 60, connecting seat; 61, pressure stabilizing valve; 62, handle seat; 63, connector main body; 64, butt joint disc; 65, clamping groove; 66, valve component; 67, valve seat. DETAILED DESCRIPTION

[0046] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model will be further described in combination with specific embodiments.

[0047] Embodiments

[0048] As Figure 1 , 2 , 9, 10, the structure of the maintenance tool of the aircraft refueling connector according to the embodiments of the utility model will be described in detail, which comprises a refueling connector main body 6 with a refueling valve port and a maintenance tool for disassembling the refueling connector main body 6, and the maintenance tool comprises:

[0049] The valve positioner 1 comprises a handle section 11 and a positioning section 12 integrally connected to the top of the handle section 11, and the positioning section 12 is adapted to be connected with the refueling valve port, specifically, a positioning protrusion 122 is arranged on the end face of the positioning section 12 in the axial direction, and the top of the positioning protrusion 122 is provided with a plurality of clamping blocks 123 arranged outward in the radial direction, and the positioning protrusion 122 and the plurality of clamping blocks 123 are matched with the clamping groove 65 at the bottom of the refueling valve port for positioning and checking the lifting function of the refueling connector;

[0050] The dismounting universal handle 2 comprises a handle body 21 and a first dismounting head 22 and a second positioning head 23 arranged at the top and the bottom of the handle body 21 respectively, and is used for dismounting the refueling connector;

[0051] The combined maintenance device 3 comprises a maintenance rod 31 and a maintenance shaft seat 32 arranged at the middle part of the maintenance rod 31.

[0052] As shown in Figures 1-2 , it should be noted that the refueling connector comprises a connecting seat 60, a pressure stabilizing valve 61, a handle seat 62 and a connector main body 63 connected and fixed in sequence from top to bottom by screws or bolts, and the handle seat 62 is fixedly connected to the outside of the connector main body by screws or bolts, wherein the bottom of the connector main body 63 is provided with a valve port, and the connector main body 63 is provided with a valve part 66 inside, and the valve part 66 has a lifting refueling valve for opening and closing the valve port, and the bottom of the valve part 66 is provided with a docking disc 64, and the docking disc 51 is fixed to the bottom of the connector main body by a plurality of screws and is externally provided with a rubber sleeve for protection and fixation, so as to prevent the docking disc 64 from shaking and deviating, and the docking disc 64 has a clamping groove 65 adapted to be clamped with the refueling seat of the aircraft fuel tank, and the clamping groove 65 is adapted to the flange on the refueling seat of the aircraft and the flange arranged on the refueling seat of the aircraft, that is, the flange can be adapted to be clamped into the clamping groove 65, and in the embodiment, the clamping groove 65 is evenly spaced in the circumferential direction and has six clamping grooves;

[0053] The valve part 66 includes a valve pin arranged inside the main body, one end of the valve pin protrudes from the joint main body and is rotatably provided with a valve handle, and is fixedly arranged on the joint main body through a valve nut, wherein the valve nut is tightly fixed with the joint main body through screw connection, four dismounting holes are arranged on one side of the outer wall of the valve nut, the valve nut can be dismounted by rotating the rod inserted into the dismounting hole, the other end of the valve pin is located inside the main body and is rotatably provided with a connecting rod, an oiling valve is arranged at the end of the connecting rod, an oiling valve seat 67 is rotatably arranged outside the joint main body, the oiling valve seat is also provided with a clamping groove 65 matched with the flange on the aircraft oiling seat, during installation, the abutting disc 64 is located below the oiling valve seat, and the clamping grooves 65 of the two correspond to each other, the oiling seat is clamped into the clamping groove 65 on the upper oiling valve seat through the clamping groove of the lower abutting disc 64, and the operator can drive the connecting rod to rise up and down in the joint main body by rotating the valve handle, so as to open or close the oiling valve.

[0054] When the aircraft is connected for refueling, the clamping grooves of the abutting disc 64 and the oiling valve seat are aligned with the flange of the aircraft oiling seat, then the handle on the handle seat is held and rotated, the oiling joint is clamped through the clamping effect, the upper oiling valve seat is rotated relative to the oiling seat, the clamping groove of the oiling valve seat is partially turned into the protruding part of the abutting disc, and then the flange of the oiling head clamped in the clamping groove of the oiling valve seat is also turned into the protruding part of the abutting disc, thereby limiting and fixing the oiling seat, and then the oiling valve is driven to rise by holding the valve handle to perform the refueling operation.

[0055] Please refer to Figure 3 As shown in the figure, the positioning section 12 is provided with a positioning protrusion 122 extending upward along the axial direction on the end face, the top of the positioning protrusion 122 is provided with a plurality of clamping blocks 123 extending outward along the radial direction, the clamping blocks 123 are matched and clamped with the clamping grooves 65 on the bottom of the oiling joint, and the positioning protrusion 122 is also matched and clamped, and the height of the positioning protrusion 122 is greater than the depth of the clamping groove 65 on the abutting disc 64.

[0056] Please refer to Figure 4 As shown in the figure, the positioning section 12 is circular and the size of the positioning section 12 is matched with the valve port of the oiling joint, the positioning section 12 is provided with a positioning hole 121 in the center, the positioning hole 121 penetrates the positioning protrusion 122 and the positioning section 12 along the axial direction, so that the two are communicated, therefore, the positioning protrusion 122 is a ring-shaped positioning protrusion, the positioning hole 121 is matched with the oiling valve, that is to say, when the valve part drives the oiling valve to rise, the positioning hole 121 can just accommodate the oiling valve.

[0057] Please refer to Figure 4As shown, the positioning protrusion 122 comprises a first protrusion 1221 and a second protrusion 1222 which are integrally arranged along the axial direction, wherein the first protrusion 1221 extends axially upward along the inner edge of the positioning section 12, that is, the inner edge of the first protrusion 1221 is fitted to the inner edge of the positioning section 12, and the second protrusion 1222 is coaxially and equally arranged upward along the top of the first protrusion 1221, so that the second protrusion 1222 and the first protrusion 1221 are annular protrusions of the same specification and size arranged one above the other.

[0058] As shown in Figure 4 As shown, a plurality of matching holes 1223 are arranged on the positioning protrusion 122 along the circumference, and the matching holes 1223 separate the first protrusion 1221 into a plurality of protrusion blocks 1224. In this embodiment, the matching holes 1223 are preferably three, and the protrusion blocks 1224 are also divided into three. Specifically, the three clamping blocks 123 are arranged in the middle of the three protrusion blocks 1224, and are centrally symmetrically distributed along the central axis with the three matching holes 1223. Furthermore, the three protrusion blocks 1224 are uniformly and spacedly distributed, and correspondingly clamped with any three of the six clamping grooves 65.

[0059] As shown in Figure 1 , 5, 6, 7, when maintenance, the protruding block 1224 and the clamping block 123 is aligned with the clamping groove 65, then press into the whole, so that the whole positioning protrusion 122 into it, then with the positioning section 12 as the center of rotation, rotating handle section 11, through the clamping block 123 and the clamping groove 65 clamping effect, so that the valve seat in the upper layer relative to the positioning section 12 synchronous rotation, so that the valve seat clamping groove 65 part into the protruding portion of the interface disk 64 inside, in turn drive the clamping block 123 clamped into the valve seat clamping groove 65 also into the protruding portion of the interface disk 64 inside, that is, the clamping block 123 and the clamping groove are located in the protruding portion of the interface disk 64 below, the protruding portion of the clamping block 123 plays a role in the axial anti-off, so as to limit the fixed effect of the clamping block 123 so that it will not fall off, then through the holding valve handle drive oil valve jacking, through the positioning section 12 clamping groove 65 set in the valve port, the positioning protrusion 121 of the positioning section 12 is radially extended and arranged with several clamping blocks 123 matched with the flange on the oil filler seat, which cleverly replaces the role of the flange on the oil filler seat. Through simple handheld operation, the valve jacking function can be checked. During routine maintenance, the quick oil filler valve can be maintained and checked. When there is a problem, the entire valve component does not need to be disassembled before maintenance. For example, when the sealing ring on the edge of the oil filler valve is damaged, oil leakage is likely to occur, so it needs to be replaced immediately. However, in the prior art, the valve component can only be removed and replaced by gradually disassembling it. The valve positioner in the present embodiment can quickly clamp into the valve and then rotate to limit the position. The oil filler valve can be jacked out directly by rotating the valve handle. This can ensure the safety of oiling operations, reduce time and labor costs, and greatly improve maintenance efficiency. It can quickly respond to sudden damage to the valve sealing ring.

[0060] Please refer to Figure 8 , Figure 13 as shown, also includes several disassembly rods 4 for disassembling the oil filler joint and a rotating handle 5 installed with the disassembly rod 4, the disassembly rod 4 contains a rod body 41 and a connecting handle 42 provided at one end of the rod body 41, and the other end is provided with a hexagonal head 43 or a hexagonal sleeve for disassembly, the rotating handle 5 has a clamping groove 51 matched with the connecting handle 42, and the axial limiting force is formed by clamping the connecting handle 42 and the clamping groove. When in use, the connecting handle 42 can be clamped into the clamping groove 51 directly. In some preferred embodiments, the rotating handle 5 can be a ratchet wrench to improve convenience.

[0061] Please refer to Figure 9 , Figure 10 , Figure 13As shown, the first dismounting head 22 is provided with a first clamping hole 231 and a second clamping hole 232 spaced from the first clamping hole 231 at the top, the first clamping hole 231 is a hexagonal groove corresponding to the size specification of the bolt or screw of the fixed handle of the aircraft refueling head, and the second clamping hole 232 can be customized according to the dismounting requirements of the specific maintenance components, including but not limited to any one of triangle, rectangle, hexagon, and in this embodiment, the shape of the second clamping hole 232 is square. In addition, the steady valve and the joint body are fixed by an internal hexagonal bolt, and when dismounting the steady valve of the refueling joint, the arc-shaped design of the outer wall of the steady valve makes it impossible to directly dismount the internal hexagonal bolt by using conventional repair tools such as sleeves, etc. Therefore, the second positioning head 23 is provided with a hexagonal block 233 extending axially along the vertical direction thereof in this embodiment, which is used to assist in dismounting the steady valve of the refueling joint. The hexagonal block 233 is horizontally moved to the upper side of the bolt or screw to be dismounted, and then the hexagonal block 233 is pressed into the bolt hole and rotated to be dismounted, which greatly improves the applicability of the tool, avoids manufacturing a large number of tools, reduces the cost, and improves the maintenance efficiency.

[0062] As shown in Figure 11 As shown, the maintenance rod 31 comprises a first maintenance rod 311 and a second maintenance rod 312 which are threadedly connected to each other, the first maintenance rod 311 is coaxially provided with a connecting segment 313 at the top, the connecting segment 313 is provided with a threaded segment, the second maintenance rod 312 is internally provided with a connecting groove 315 which is just capable of accommodating the connecting segment 313, and the connecting groove 315 is provided with a threaded wall which is threadedly matched with the threaded segment, so that the connection is more stable.

[0063] As shown in Figures 11-12 As shown, the maintenance shaft seat 32 is provided with an engaging cavity 321 penetrating through the top in the transverse direction, the engaging cavity 321 is matched with the connecting segment 313, two engaging holes 322 are formed on the outer wall of the maintenance shaft seat 32 corresponding to the two openings of the engaging cavity 321, and the maintenance shaft seat 32 is provided with two positioning columns 323 at the top and the bottom. When assembling, the assembling steps are as follows: picking up the first maintenance rod 311 and aligning the engaging holes 322 on the maintenance shaft seat 32, so that the connecting segment 313 of the first maintenance rod 311 successively passes through the engaging holes 322 on the two sides, at this time, the maintenance shaft seat 32 is adapted and arranged on the connecting segment 313 through the engaging holes 322, and then the second maintenance rod 312 is rotated, so that the first maintenance rod 311 and the second maintenance rod 312 are firmly assembled together through the threaded connection relationship of the threaded segments, and then the maintenance rod 31 and the maintenance shaft seat 32 are combined together.

[0064] When it is found that the valve component is damaged and needs to be disassembled as a whole, the maintenance rod 31 and the maintenance shaft seat 32 can be assembled, when disassembled, the positioning column 323 is aligned and clamped into the positioning disassembly hole, so that the rotation constraint force is formed, then the maintenance rod 31 is used as a supporting shaft, the maintenance shaft seat 32 is used as a rotating shaft, the operator can rotate the supporting shaft and then drive the rotating shaft to rotate, so as to achieve the purpose of disassembling the aircraft refueling head valve nut, and then the internal valve pin and other valve components are disassembled from the refueling connector.

[0065] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0066] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An aircraft refuelling connector servicing tool comprising a refuelling connector body (6) having a refuelling valve port and a servicing tool for dismounting the refuelling connector body (6), characterised in that, The maintenance tools include: The valve positioner (1) includes a handle section (11) and a positioning section (12) integrally connected to the top of the handle section (11). A positioning protrusion (122) extends axially on the end face of the positioning section (12). A plurality of engaging blocks (123) are provided on the top of the positioning protrusion (122) and extend radially outward. The positioning protrusion (122) and the plurality of engaging blocks (123) are matched and engaged with the slot at the bottom of the refueling valve. The universal handle (2) includes a handle body (21) and a first disassembly head (22) and a second positioning head (23) respectively located at the top and bottom of the handle body (21), which are used to cooperate in disassembling the oiling connector; The combined maintenance device (3) includes a maintenance rod (31) and a maintenance bearing (32) located in the middle of the maintenance rod (31).

2. An aircraft refuelling connector servicing tool according to claim 1, wherein: The positioning section (12) is circular in shape, and the positioning section (12) is provided with a positioning hole (121) extending radially from the center line of the circle.

3. An aircraft refuelling connector servicing tool according to claim 2, wherein: The positioning protrusion (122) includes a first protrusion (1221) and a second protrusion (1222) integrally disposed along the axial direction. The first protrusion (1221) extends upward along the inner diameter edge of the positioning segment (12), and the second protrusion (1222) extends upward along the top of the first protrusion (1221) and is coaxial with the same diameter.

4. An aircraft refuelling connector servicing tool according to claim 3, wherein: The positioning protrusion (122) is provided with a plurality of mating holes (1223) spaced apart along the circumferential direction. The plurality of mating holes (1223) divide the second protrusion (1222) into a plurality of protrusion blocks (1224) spaced apart.

5. An aircraft refuelling connector servicing tool according to claim 4, wherein: The locking block (123) is located in the middle of the protrusion block (1224), and it and several mating holes (1223) are centrally symmetrically distributed along the central axis.

6. An aircraft refuelling connector servicing tool according to claim 1, wherein: It also includes several disassembly rods (4) for disassembling the oiling connector and a rotating handle (5) that engages with the disassembly rods (4). The disassembly rod (4) includes a rod body (41) and a connecting handle (42) at one end of the rod body (41). The other end of the rod body (41) is provided with a hexagonal screwdriver bit (43) for disassembly. The rotating handle (5) has a locking groove (51) that is adapted to engage with the connecting handle (42) for easy disassembly.

7. An aircraft refuelling connector servicing tool according to claim 1, wherein: The first disassembly head (22) has a first engagement hole (231) and a second engagement hole (232) spaced apart from the first engagement hole (231) at the top. The second positioning head (23) has a hexagonal block (233) extending axially along its vertical direction to assist in disassembling the oiling connector.

8. An aircraft refuelling connector servicing tool according to claim 1, wherein: The inspection rod (31) includes a first inspection rod (311) and a second inspection rod (312) that are threaded together. The first inspection rod (311) has a connecting section (313) coaxially provided at the top. The connecting section (313) has a threaded section. The second inspection rod (312) has a connecting groove (315) that can accommodate the connecting section (313). The connecting groove (315) has a threaded wall that is threaded to the threaded section.

9. An aircraft refuelling connector servicing tool according to claim 8, wherein: The top of the overhauling shaft base (32) is provided with a joint cavity (321) through in the transverse direction, the joint cavity (321) is matched with the connecting section (313), two opening openings of the joint cavity (321) correspond to form two joint holes (322) on the outer wall of the overhauling shaft base (32), and the bottom of the overhauling shaft base (32) is provided with two positioning columns (323).

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