A pressure flow test device for aviation pressure refueling joint

Abstract

The utility model discloses a pressure flow test device for an aviation pressure refueling joint, comprising a connecting device, a test device body is installed on the top of the connecting device; one end of the connecting device is fixedly connected to a first connecting pipe, one end of the first connecting pipe is fixedly connected to a first connecting plate, one end of the first connecting plate is installed with a second connecting plate, a plurality of bolts and nuts are installed between the first connecting plate and the second connecting plate, the other end of the connecting tube is fixedly connected to a claw sleeve, the outer wall of the connecting tube is installed with a fixed sleeve, and the inner wall of the fixed sleeve is provided with an internal thread. The utility model is designed with a first connecting pipe, a first connecting plate, a second connecting plate, bolts, nuts, a fixed ring sleeve and annular convex thorns, and the pressure flow test device can quickly connect the refueling joint, which is not only fast to connect and has strong connectivity, but also convenient for disassembly after the test.

Description

Technical Field

[0001] The utility model relates to the field of aviation technology, in particular to a pressure flow testing device for an aviation pressure refueling joint. Background Art

[0002] Aircraft engaged in flying activities, also known as aircraft, are divided into two categories: lighter-than-air aircraft and heavier-than-air aircraft. The former, such as balloons and airships, use the static buoyancy of air to take off; the latter, such as airplanes and helicopters, use aerodynamic force to take off. In order to improve the tightness and reliability of aviation pressure refueling connectors, it is often necessary to perform pressure flow tests on pressure refueling connectors regularly.

[0003] Traditionally, a test device is often used when performing pressure flow testing on aviation pressure refueling connectors. However, existing test devices often connect the connecting pipe through a ferrule. The connecting pipe is inserted into one end of the test device and clamped by a ferrule. Although the connection can be achieved, the sealing performance of the ferrule connection is poor, which affects the test of the aviation pressure refueling connector and greatly reduces the accuracy of the test data.

[0004] Therefore, it is urgent to provide an aviation pressure refueling joint pressure flow testing device to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that a test device is often used when a pressure flow test is performed on an aviation pressure refueling connector in the traditional way. However, the existing test device often connects a connecting pipe through a ferrule, and the connecting pipe is plugged into one end of the test device and clamped by a ferrule. Although the connection can be achieved, the sealing performance of the connection through the ferrule is poor, which affects the test of the aviation pressure refueling connector and greatly reduces the accuracy of the test data.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an aviation pressure refueling joint pressure flow test device, including a connecting device, and a test device body is installed on the top of the connecting device;

[0007] One end of the connecting device is fixedly connected to a first connecting pipe, one end of the first connecting pipe is fixedly connected to a first connecting plate, one end of the first connecting plate is installed with a second connecting plate, a plurality of bolts and nuts are installed between the first connecting plate and the second connecting plate, a fixing ring sleeve is slidably connected between the first connecting plate and the second connecting plate, and a plurality of annular ridges are fixedly connected to the inner wall of the fixing ring sleeve;

[0008] The other end of the connecting device is fixedly connected to a second connecting pipe, the other end of the second connecting pipe is fixedly connected to a connecting cylinder, the outer wall of the connecting cylinder is provided with an external thread, the other end of the connecting cylinder is fixedly connected to a claw sleeve, the outer wall of the connecting cylinder is installed with a fixing sleeve, and the inner wall of the fixing sleeve is provided with an internal thread.

[0009] The utility model is further configured as follows: a plurality of mounting holes are provided at one end of each of the first connecting plate and the second connecting plate.

[0010] Through the above technical solution: it is convenient to connect the first connecting plate and the second connecting plate with multiple bolts and nuts, which is not only convenient to connect but also relatively simple to disassemble.

[0011] The utility model is further configured as follows: the plurality of bolts respectively penetrate through the plurality of mounting holes, and the other ends of the outer walls of the plurality of bolts are threadedly connected with the plurality of nuts.

[0012] Through the above technical solution: when the staff needs to connect the refueling connector, they insert the refueling connector into the first connecting pipe and tighten multiple nuts to connect the second connecting plate with the first connecting plate. When disassembling, they only need to loosen the multiple nuts. The operation is simple, saving time and effort.

[0013] The utility model is further configured as follows: the cross section of the fixing ring sleeve is trapezoidal, and the inner walls of the first connecting pipe and the first connecting plate are respectively tightly fitted with the outer wall of the fixing ring sleeve.

[0014] Through the above technical solution: when multiple nuts are tightened, the second connecting plate slowly approaches the first connecting plate, so that the second connecting plate squeezes the fixed ring sleeve, and the fixed ring sleeve slowly squeezes the outer wall of the refueling connector, thereby pushing multiple annular burrs to squeeze the outer wall of the refueling connector, thereby tightly biting the outer wall of the refueling connector, which not only has strong fixation but also strong sealing, thereby facilitating pressure flow testing of the aviation pressure refueling joint.

[0015] The utility model is further configured as follows: the claw sleeve is made of rubber material.

[0016] The above technical solution has a good elastic effect, which makes it easy for the fixing sleeve to squeeze it, so that the claw sleeve can squeeze and fit the outer wall of the oil pipeline, and the fixation is strong.

[0017] The utility model is further configured as follows: a clamping groove is provided on the inner wall of the fixing sleeve, and in the assembled state, the fixing sleeve is tightly fitted with the claw sleeve through the clamping groove.

[0018] Through the above technical solution: when connecting the oil pipeline, the staff inserts one end of the oil pipeline into the second connecting pipe, spreads the claw sleeve so that the claw sleeve fits tightly against the outer wall of the oil pipeline, and tightens the fixed sleeve on the outer wall of the connecting tube, thereby realizing the connection of the oil pipeline. Not only is the connectivity strong, but the sealing is also strong, which is convenient for pressure flow testing of the aviation pressure refueling joint.

[0019] The utility model is further configured as follows: the fixing sleeve is threadedly connected to the external thread of the outer wall of the connecting tube through the internal thread.

[0020] Through the above technical solution: the staff can rotate the fixing sleeve to connect the oil pipeline, and rotate it in the opposite direction to disassemble the oil pipeline. The operation is simple and prevents the oil pipeline connection from loosening, thereby improving the connection fixation of the oil pipeline.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The utility model is designed with a first connecting pipe, a first connecting plate, a second connecting plate, bolts, nuts, a fixing ring sleeve and annular convex thorns. The pressure flow test device can quickly connect the refueling joint. Not only is the connection relatively fast, but the connectivity is relatively strong, and it is also convenient to disassemble after the test;

[0023] 2. The utility model is designed with a connecting tube, an external thread, a claw sleeve, a fixing sleeve and an internal thread. The pressure flow test device can quickly install the oil pipeline, thereby facilitating the testing of the refueling joint. The outer wall of the connecting pipe is grasped and fixed by the claw sleeve, which greatly increases the contact friction with the outer wall of the connecting pipe. At the same time, the fixing sleeve is effectively threaded and fixed to prevent the connection from loosening, thereby improving the connection fixation of the oil pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the first perspective appearance diagram of the utility model;

[0025] Figure 2 This is the appearance diagram of the utility model from the second viewing angle;

[0026] Figure 3 It is the front view of the utility model;

[0027] Figure 4 It is a cross-sectional view of the utility model;

[0028] Figure 5 It is an exploded view of the utility model;

[0029] Figure 6 for Figure 4 A partial enlarged view of point A in the middle.

[0030] In the figure: 1. connecting device; 2. testing device body; 3. first connecting pipe; 4. first connecting plate; 5. second connecting plate; 6. bolt; 7. nut; 8. fixing ring sleeve; 9. annular thorn; 10. second connecting pipe; 11. connecting tube; 12. external thread; 13. claw sleeve; 14. fixing sleeve; 15. internal thread. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0032] See also Figure 1-Figure 6 , a pressure flow test device for an aviation pressure refueling joint, comprising a connecting device 1, a test device body 2 is installed on the top of the connecting device 1, a first connecting pipe 3 is fixedly connected to one end of the connecting device 1, a first connecting plate 4 is fixedly connected to one end of the first connecting pipe 3, a second connecting plate 5 is installed at one end of the first connecting plate 4, a plurality of mounting holes are opened at one end of the first connecting plate 4 and the second connecting plate 5, which is convenient for connecting the first connecting plate 4 and the second connecting plate 5 by a plurality of bolts 6 and nuts 7, which is not only convenient to connect, but also relatively simple to disassemble, a plurality of bolts 6 and nuts 7 are installed between the first connecting plate 4 and the second connecting plate 5, and the plurality of bolts 6 respectively penetrate the plurality of mounting holes;

[0033] like Figure 4 and 6 As shown, the other ends of the outer walls of the plurality of bolts 6 are threadedly connected with the plurality of nuts 7. When the staff needs to connect the refueling connector, the refueling connector is inserted into the first connecting pipe 3 and the plurality of nuts 7 are tightened, so that the second connecting plate 5 is connected to the first connecting plate 4. When disassembling, the plurality of nuts 7 can be loosened. The operation is simple, time-saving and labor-saving. A fixing ring sleeve 8 is slidably connected between the first connecting plate 4 and the second connecting plate 5. The inner wall of the fixing ring sleeve 8 is fixedly connected with a plurality of annular convex thorns 9. The cross section of the fixing ring sleeve 8 is trapezoidal. The inner walls of the first connecting pipe 3 and the first connecting plate 4 are tightly fitted with the outer wall of the fixing ring sleeve 8 respectively. When the plurality of nuts 7 are tightened, the second connecting plate 5 is slowly approached to the first connecting plate 4, so that the second connecting plate 5 squeezes the fixing ring sleeve 8, so that the fixing ring sleeve 8 slowly squeezes the outer wall of the refueling connector, thereby pushing the plurality of annular convex thorns 9 to squeeze the outer wall of the refueling connector, thereby tightly biting the outer wall of the refueling connector, which not only has strong fixation but also has strong sealing, so that it is convenient to perform pressure flow test on the aviation pressure refueling joint.

[0034] like Figure 5As shown, the other end of the connecting device 1 is fixedly connected to a second connecting pipe 10, and the other end of the second connecting pipe 10 is fixedly connected to a connecting cylinder 11. The outer wall of the connecting cylinder 11 is provided with an external thread 12. The other end of the connecting cylinder 11 is fixedly connected to a claw sleeve 13. The claw sleeve 13 is made of rubber material and has a good elastic effect, which is convenient for the fixed sleeve 14 to squeeze it, so that the claw sleeve 13 is convenient for the outer wall of the oil pipeline to be squeezed and fitted, and the fixation is strong. The outer wall of the connecting cylinder 11 is installed with a fixing sleeve 14, and the inner wall of the fixing sleeve 14 is provided with a groove. In the assembled state, the fixing sleeve 14 is tightly fitted with the claw sleeve 13 through the groove. When connecting the oil pipeline, the staff will connect one end of the oil pipeline Insert it into the second connecting pipe 10, open the claw sleeve 13, so that the claw sleeve 13 fits tightly against the outer wall of the oil pipeline, and put the fixing sleeve 14 on the outer wall of the connecting tube 11 and tighten it, thereby realizing the connection of the oil pipeline. It not only has strong connectivity, but also strong sealing, which is convenient for pressure flow testing of the aviation pressure refueling joint. The inner wall of the fixing sleeve 14 is provided with an internal thread 15, and the fixing sleeve 14 is threadedly connected to the external thread 12 on the outer wall of the connecting tube 11 through the internal thread 15. The staff can rotate the fixing sleeve 14 to connect the oil pipeline, and rotate it in the opposite direction to disassemble the oil pipeline. The operation is simple, which prevents the oil pipeline connection from loosening, thereby improving the connection fixity of the oil pipeline.

[0035] When the utility model is in use, the staff inserts the refueling connector into the first connecting pipe 3 and tightens the multiple nuts 7. When the multiple nuts 7 are tightened, the second connecting plate 5 slowly approaches the first connecting plate 4, so that the second connecting plate 5 squeezes the fixed ring sleeve 8, and the fixed ring sleeve 8 slowly squeezes the outer wall of the refueling connector, thereby pushing the multiple annular ridges 9 to squeeze the outer wall of the refueling connector, thereby tightly biting the outer wall of the refueling connector. At the same time, the staff inserts one end of the oil pipeline into the second connecting pipe 10, opens the claw sleeve 13, so that the claw sleeve 13 fits tightly to the outer wall of the oil pipeline, and tightens the fixed sleeve 14 on the outer wall of the connecting tube 11, thereby realizing the connection of the book oil pipeline. At this time, the oil can be input into the connecting device 1 through the oil pipeline, and the pressure flow test of the aviation pressure refueling joint is carried out through the test device body 2.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An aviation pressure refueling joint pressure flow test device, comprising a connecting device (1), characterized in that: A testing device body (2) is installed on the top of the connecting device (1); One end of the connecting device (1) is fixedly connected to a first connecting pipe (3), one end of the first connecting pipe (3) is fixedly connected to a first connecting plate (4), one end of the first connecting plate (4) is installed with a second connecting plate (5), a plurality of bolts (6) and nuts (7) are installed between the first connecting plate (4) and the second connecting plate (5), a fixing ring sleeve (8) is slidably connected between the first connecting plate (4) and the second connecting plate (5), and a plurality of annular protrusions (9) are fixedly connected to the inner wall of the fixing ring sleeve (8); The other end of the connecting device (1) is fixedly connected to a second connecting pipe (10), the other end of the second connecting pipe (10) is fixedly connected to a connecting tube (11), the outer wall of the connecting tube (11) is provided with an external thread (12), the other end of the connecting tube (11) is fixedly connected to a claw sleeve (13), the outer wall of the connecting tube (11) is installed with a fixing sleeve (14), and the inner wall of the fixing sleeve (14) is provided with an internal thread (15).

2. The pressure flow test device for aviation pressure refueling joint according to claim 1, characterized in that: One end of each of the first connection plate (4) and the second connection plate (5) is provided with a plurality of mounting holes.

3. The pressure flow test device for aviation pressure refueling joint according to claim 2, characterized in that: The plurality of bolts (6) respectively penetrate through the plurality of mounting holes, and the other ends of the outer walls of the plurality of bolts (6) are threadedly connected to the plurality of nuts (7).

4. The pressure flow test device for aviation pressure refueling joint according to claim 1, characterized in that: The cross section of the fixing ring sleeve (8) is trapezoidal, and the inner walls of the first connecting pipe (3) and the first connecting plate (4) are respectively tightly fitted with the outer wall of the fixing ring sleeve (8).

5. The pressure flow test device for aviation pressure refueling joint according to claim 1, characterized in that: The claw sleeve (13) is made of rubber material.

6. The pressure flow test device for aviation pressure refueling joint according to claim 1, characterized in that: The inner wall of the fixing sleeve (14) is provided with a clamping groove, and in the assembled state, the fixing sleeve (14) is tightly fitted with the claw sleeve (13) through the clamping groove.

7. The pressure flow test device for aviation pressure refueling joint according to claim 1, characterized in that: The fixing sleeve (14) is threadedly connected to the external thread (12) on the outer wall of the connecting tube (11) via the internal thread (15).

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