Quick conversion connecting joint for airplane oil pumping

Abstract

The utility model relates to the technical field of airplane oil delivery pipe connection, in particular to a quick conversion connector for airplane oil pumping, which is characterized in that a positioning pipe is arranged at one end of an oil filling rubber pipe, an arc-shaped groove is formed in the surface of the positioning pipe, a positioning ring is arranged at one end of an oil tank connector, a positioning block is arranged in the positioning ring, and a supporting rod is arranged on the surface of the positioning block; the oil filling rubber pipe has the beneficial effects that when the oil filling rubber pipe needs to be connected with an oil tank connector of an airplane during use, firstly, a traction ring can be directly pulled outwards to enable a positioning block to move upwards into a placement groove, then, a positioning pipe can be inserted into a positioning ring, and finally, the traction ring is loosened to enable the positioning block to reset; therefore, the positioning block can be inserted into the arc-shaped groove formed in the surface of the positioning pipe, the refueling rubber pipe can be quickly connected with the fuel tank connector of the airplane, and when the refueling rubber pipe needs to be taken down, the refueling rubber pipe can be taken down conveniently only by pulling the positioning block to be separated from the arc-shaped groove.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft oil pipeline connection, in particular to a quick-change connection joint for aircraft oil extraction. Background Art

[0002] In the prior art, in case of some emergency situations, when the aircraft is pumping oil, the oil pumping joint is used in conjunction with a clamp to connect with the aircraft refueling hose, and then the aircraft can be used.

[0003] However, when the aircraft's refueling hose and joint are connected via a clamp, the connection between the aircraft's refueling hose and joint is slow due to the clamp, thereby increasing the time for oil extraction, which may cause certain dangers. Therefore, the utility model proposes a quick-change connection joint for aircraft oil extraction to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a quick-change connecting joint for oil extraction in aircraft, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a quick-change connecting joint for oil extraction in an aircraft, the quick-change connecting joint for oil extraction in an aircraft comprising: a refueling hose, a positioning tube is arranged at one end of the refueling hose, and an arc groove is opened on the surface of the positioning tube;

[0006] A fuel tank connector, one end of which is provided with a positioning ring, a positioning block is provided inside the positioning ring, a support rod is provided on the surface of the positioning block, and a traction ring is provided at one end of the support rod.

[0007] Preferably, the positioning tube is fixedly connected to the end face of the refueling hose, and a card slot is provided on the surface of the arc groove. The card slots are arranged in multiple groups, and the multiple groups of card slots are regularly arranged in a circle with respect to the surface of the arc groove.

[0008] Preferably, the positioning ring is fixedly connected to the end face of the oil tank connecting head, the end face of the oil tank connecting head is provided with a groove, and a sealing rubber ring is arranged in the groove.

[0009] Preferably, a placement groove is provided on the inner surface of the positioning ring, and through holes are provided on the surface of the placement groove. There are two groups of through holes, and the two groups of through holes are symmetrically distributed up and down about the center point of the positioning ring surface.

[0010] Preferably, a fixing plate is arranged in the through hole, a hole is opened on the surface of the fixing plate, the support rod is inserted into the hole opened on the surface of the fixing plate, and the support rod can slide up and down along the hole.

[0011] Preferably, a spring is sleeved on the surface of the support rod, one end of the spring is fixedly connected to the surface of the fixing plate, and the other end of the spring is fixedly connected to the surface of the positioning block. A rubber strip is provided at the bottom of the positioning block, and the rubber strip can be inserted into the card slot. The bottom of the positioning block is an arc surface that can fit with the surface of the arc groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a quick conversion connection joint for oil extraction of an aircraft. When the refueling hose needs to be connected to the fuel tank connector of the aircraft, the traction ring can be directly pulled outward to move the positioning block upward to the inside of the placement groove, and then the positioning tube can be inserted into the positioning ring. Finally, the traction ring is loosened to reset the positioning block, so that the positioning block can be inserted into the arc groove provided on the surface of the positioning tube, so that the refueling hose and the fuel tank connector of the aircraft can be quickly connected. When it needs to be removed, the refueling hose can be removed more conveniently by only pulling the positioning block to disengage the positioning block from the arc groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the structure of the utility model;

[0016] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 This is a schematic diagram of the structure of the refueling hose of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure positioning block of the utility model.

[0019] In the figure: 1. refueling hose; 2. positioning tube; 3. arc groove; 4. fuel tank connector; 5. positioning ring; 6. positioning block; 7. support rod; 8. traction ring; 9. slot; 10. sealing rubber ring; 11. placement slot; 12. through hole; 13. fixing plate; 14. spring; 15. rubber strip. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0024] Embodiment 1

[0025] See also Figures 1 to 5The utility model provides a technical solution: a quick-change connecting joint for oil extraction in an aircraft, the quick-change connecting joint for oil extraction in an aircraft comprising: a refueling hose 1, a positioning tube 2 is provided at one end of the refueling hose 1, and an arc groove 3 is provided on the surface of the positioning tube 2; a fuel tank connector 4, a positioning ring 5 is provided at one end of the fuel tank connector 4, a positioning block 6 is provided in the positioning ring 5, a support rod 7 is provided on the surface of the positioning block 6, and a traction ring 8 is provided at one end of the support rod 7;

[0026] During use, when it is necessary to connect the refueling hose 1 to the fuel tank connector 4 of the aircraft, first, the traction ring 8 can be directly pulled outward to move the positioning block 6 up to the inside of the placement groove 11, and then the positioning tube 2 can be inserted into the positioning ring 5. Finally, the traction ring 8 is loosened to reset the positioning block 6, so that the positioning block 6 can be inserted into the arc groove 3 provided on the surface of the positioning tube 2, so that the refueling hose 1 can be quickly connected to the fuel tank connector 4 of the aircraft. When it needs to be removed, it is more convenient to remove the refueling hose 1 by only pulling the positioning block 6 to disengage the positioning block 6 from the arc groove 3.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, a positioning block 6 is provided to facilitate the connection between the positioning tube 2 and the positioning ring 5. The positioning ring 5 is fixedly connected to the end face of the oil tank connector 4. A groove is provided on the end face of the oil tank connector 4. A sealing rubber ring 10 is provided in the groove. A spring 14 is sleeved on the surface of the support rod 7. One end of the spring 14 is fixedly connected to the surface of the fixing plate 13. The other end of the spring 14 is fixedly connected to the surface of the positioning block 6. A rubber strip 15 is provided at the bottom of the positioning block 6. The rubber strip 15 can be inserted into the card slot 9. The bottom of the positioning block 6 is an arc surface that can fit the surface of the arc groove 3.

[0029] When in use, after the positioning block 6 is inserted into the arc groove 3, the bottom of the positioning block 6 is set as an arc surface, which can make the positioning block 6 fit with the surface of the arc groove 3 to improve the limiting effect of the positioning block 6 on the positioning tube 2. The sealing rubber ring 10 can increase the contact between the end face of the positioning tube 2 and the end face of the oil tank connector 4 to improve the sealing performance. The setting of the spring 14 can limit the positioning block 6 on the one hand, and on the other hand, it is also convenient for the positioning block 6 to automatically reset after pulling the positioning block 6.

[0030] Embodiment 3

[0031] On the basis of the second embodiment, in order to improve the connection stability of the positioning tube 2, a card slot 9 is provided. The positioning tube 2 is fixedly connected to the end face of the refueling hose 1. The surface of the arc groove 3 is provided with a card slot 9. There are multiple groups of card slots 9. The multiple groups of card slots 9 are regularly arranged in a circle with respect to the surface of the arc groove 3. When in use, after the positioning tube 2 is inserted into the positioning ring 5, the rubber strip 15 can be inserted into the card slot 9 by rotating, thereby improving the stability of the positioning tube 2 and avoiding the problem of the positioning tube 2 rotating randomly in the positioning ring 5.

[0032] A fixing plate 13 is arranged in the through hole 12, and a hole is opened on the surface of the fixing plate 13. The support rod 7 is inserted into the hole opened on the surface of the fixing plate 13, and the support rod 7 can slide up and down along the hole. The setting of the fixing plate 13 can guide and limit the displacement of the support rod 7 to prevent the support rod 7 from being offset, thereby causing the positioning block 6 to be unable to be quickly inserted into the arc groove 3, thereby reducing the connection speed between the refueling hose 1 and the fuel tank connector 4.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-change connection joint for oil extraction in aircraft, characterized in that: The aircraft oil extraction quick-change connection joint comprises: a refueling hose (1), one end of which is provided with a positioning tube (2), and a surface of the positioning tube (2) is provided with an arc groove (3); A fuel tank connector (4) is provided with a positioning ring (5) at one end of the fuel tank connector (4), a positioning block (6) is provided inside the positioning ring (5), a support rod (7) is provided on the surface of the positioning block (6), and a traction ring (8) is provided at one end of the support rod (7).

2. The quick-change connecting joint for oil extraction of aircraft according to claim 1, characterized in that: The positioning tube (2) is fixedly connected to the end face of the refueling hose (1), and a clamping groove (9) is provided on the surface of the arc groove (3). The clamping grooves (9) are provided in multiple groups, and the multiple groups of clamping grooves (9) are regularly arranged in a circle with respect to the surface of the arc groove (3).

3. The quick-change connecting joint for oil extraction in aircraft according to claim 1, characterized in that: The positioning ring (5) is fixedly connected to the end surface of the oil tank connecting head (4); the end surface of the oil tank connecting head (4) is provided with a groove, and a sealing rubber ring (10) is arranged in the groove.

4. The quick-change connecting joint for oil extraction in aircraft according to claim 1, characterized in that: The inner surface of the positioning ring (5) is provided with a placement groove (11), the surface of the placement groove (11) is provided with through holes (12), two groups of through holes (12) are provided, and the two groups of through holes (12) are symmetrically distributed up and down about the center point of the surface of the positioning ring (5).

5. The quick-change connecting joint for oil extraction in aircraft according to claim 4, characterized in that: A fixing plate (13) is arranged in the through hole (12), a hole is opened on the surface of the fixing plate (13), the support rod (7) is inserted into the hole opened on the surface of the fixing plate (13), and the support rod (7) can slide up and down along the hole.

6. The quick-change connecting joint for oil extraction in aircraft according to claim 1, characterized in that: The surface of the support rod (7) is sleeved with a spring (14), one end of the spring (14) is fixedly connected to the surface of the fixing plate (13), and the other end of the spring (14) is fixedly connected to the surface of the positioning block (6). A rubber strip (15) is arranged at the bottom of the positioning block (6), and the rubber strip (15) can be inserted into the card slot (9). The bottom of the positioning block (6) is an arc surface and can fit with the surface of the arc groove (3).

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