CN215674131U - Single-way airtight inflating nozzle device - Google Patents
Single-way airtight inflating nozzle device Download PDFInfo
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- CN215674131U CN215674131U CN202121307059.7U CN202121307059U CN215674131U CN 215674131 U CN215674131 U CN 215674131U CN 202121307059 U CN202121307059 U CN 202121307059U CN 215674131 U CN215674131 U CN 215674131U
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- pipe joint
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- screw thread
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- rubber ring
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Abstract
The utility model discloses a single-way airtight inflation nozzle device which comprises a rubber ring, a nut and an inflation nozzle, wherein one end of the inflation nozzle is fixed on a machine body structure through the rubber ring and the nut, the other end of the inflation nozzle is connected with a pipe joint, the nut is an outer hexagonal nut and comprises an internal thread and two safety holes, the two safety holes are respectively adjacently arranged on the hexagonal outer wall of the nut and are used for installing fuses, the inflation nozzle comprises a boss, an external thread, a connecting shaft and a pipe joint screw thread and is in a circular shaft shape, the rubber ring and the nut are both sleeved on the external thread of the inflation nozzle, the pipe joint is in screw joint with the pipe joint screw thread, the pipe joint is fixed on the inflation nozzle through the safety holes by passing through the fuses, and the external diameter of the external thread of the inflation nozzle is larger than that of the pipe joint screw thread; the utility model has the advantages that: the utility model has simple structure, convenient installation and operation and easy replacement, can prevent the leakage of inflation and ensures that the cabin and the oil tank have certain residual pressure.
Description
Technical Field
The utility model belongs to the technical field of inflation devices, and particularly relates to a single-way airtight inflation nozzle device.
Background
When the airplane normally flies, the cabin needs to keep certain residual pressure to meet the air tightness requirement of the cabin, and in order to determine whether the air tightness of the cabin meets the requirement, a cabin air tightness test needs to be carried out during the manufacturing period of the airplane; on the other hand, in the flight process of the airplane, a certain pressure needs to be kept in the integral oil tank of the fuselage and the wings to ensure that the oil tank can normally supply oil, so that the air tightness of the integral oil tank needs to be tested.
Patent CN111006054A relates to a full leak-proof self-locking sealing charging connector, which is not suitable for the field of airplane structure, HB 4-6 relates to a straight-through pipe joint with a flange, which is a double-way joint, and is used for connecting frame plate guide pipes, the pipe joint is riveted and fixed on a machine body structure through rivets, but no safety hole is used for fixing the guide pipes and preventing gas leakage; patent CN210050338U relates to a one-way charging connector and gas tube thereof, and its structure is complicated, is the L type, is not suitable for aircraft structure field.
SUMMERY OF THE UTILITY MODEL
Aiming at the prior art, the utility model aims to overcome the defects in the prior art and adapt to the practical requirements, thereby providing the single-way airtight inflating nozzle device which can prevent the loosening of the inflating pipe joint in the inflating process and the loosening of the blocking cover in the plugging process and simultaneously prevent the gas leakage.
In order to achieve the purpose, the utility model adopts the technical scheme that: a single-way airtight inflation nozzle device comprises a rubber ring, a nut and an inflation nozzle, wherein one end of the inflation nozzle is fixed on a machine body structure through the rubber ring and the nut, the other end of the inflation nozzle is connected with a pipe joint, the rubber ring is in a ring shape with a circular through hole in the middle, the nut is an outer hexagon nut, the nut comprises an inner thread and two safety holes, the two safety holes are respectively and adjacently arranged on the hexagonal outer wall of the nut and are all used for installing fuses, the inflation nozzle comprises a boss, an outer thread, a connecting shaft and a pipe joint screw thread and is in a circular shaft shape, the two ends of the outer thread are respectively one end of the boss and one end of the connecting shaft, the other end of the connecting shaft is one end of the pipe joint screw thread, the other end of the pipe joint screw thread is a conical surface, the rubber ring and the nut are all sleeved on the outer thread of the inflation nozzle, and the pipe joint screw thread is in a screwed joint, and the pipe joint is fixed on the charging connector by the fuse through the safety hole, and the external diameter of the external thread of the charging connector is larger than the external diameter of the screw thread of the screw joint of the pipe joint.
Furthermore, the inflating nozzle is of an integrally formed structure, a central hole is formed in the middle of the inflating nozzle in the axial direction, a connecting shaft on the inflating nozzle is an optical axis, and the outer diameter of the connecting shaft is smaller than the outer diameter of a threaded connection thread of the pipe joint.
Further, the outer diameter of a boss on the inflating nozzle is larger than the outer diameter of the external thread.
Furthermore, the aperture of the circular through hole in the middle of the rubber ring is matched with the outer diameter of the external thread on the inflating nozzle, and the internal thread of the nut is matched with the external thread on the inflating nozzle.
Furthermore, the pipe joint screw thread on the charging connector is matched with the pipe joint internal thread.
Furthermore, the pipe joint screw thread of the charging connector is in screw joint with the pipe joint plug cover, and the pipe joint plug cover is fixed on the charging connector through a fuse.
Furthermore, the pipe joint screw thread of the inflating nozzle is matched with the pipe joint plug cover internal thread.
Furthermore, the threaded end of the pipe joint of the charging connector sequentially penetrates through the machine body structure, the rubber ring and the nut to be connected with the pipe joint, and the fuse penetrates through a safety hole in the nut to fix the fuse.
Furthermore, the pipe joint screw thread end of the charging connector sequentially penetrates through the machine body structure, the rubber ring and the nut to be connected with the pipe joint plug cover, and the fuse penetrates through a safety hole in the nut to fix the pipe joint plug cover.
The utility model has the beneficial effects that: the utility model has simple structure, convenient installation and operation and easy replacement, on one hand, the air is inflated through the butt joint of the pipe joint of the connecting hose and the inflating nozzle, and the extrusion deformation of the rubber ring can prevent the air leakage, on the other hand, the air can be blocked through the pipe joint blocking cover after the air is inflated, thereby facilitating the air tightness test of the cabin and the oil tank. The utility model can meet the pressurizing requirement of the air tightness test of the aircraft cabin and the oil tank, and can prevent the pipe joint from loosening in the inflation process and the pipe joint blocking cover from loosening in the blocking process through the safety of the fuse, and simultaneously prevent the gas from leaking through the extrusion deformation of the rubber ring, thereby ensuring that certain residual pressure exists in the cabin and the oil tank.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the assembly of the present invention mounted to a frame structure;
FIG. 3 is a schematic view of the present invention;
fig. 4 is a schematic view of the plugging of the present invention.
In the figure: the device comprises a rubber ring 1, a nut 2, an internal thread 21, a safety hole 22, an inflation nozzle 3, a boss 31, an external thread 32, a pipe joint screw thread 33, a connecting shaft 34, a fuse 4, a pipe joint 5, a hose 6, a machine body structure 7 and a pipe joint plugging cover 8.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1 to 4, the utility model provides a single-pass airtight inflation nozzle device, which comprises a rubber ring 1, a nut 2 and an inflation nozzle 3, wherein one end of the inflation nozzle 3 is fixed on a machine body structure 7 through the rubber ring 1 and the nut 2, the other end of the inflation nozzle is connected with a pipe joint 5, the rubber ring 1 is in a ring shape with a circular through hole in the middle, the nut 2 is an outer hexagonal nut, the nut 2 comprises an internal thread 21 and a safety hole 22, the safety hole 22 is provided with two safety holes which are respectively adjacently arranged on the hexagonal outer wall of the nut 2 and are both used for installing a fuse 4, the inflation nozzle 3 comprises a boss 31, an external thread 32, a connecting shaft 34 and a pipe joint threaded thread 33 and are in a round shaft shape, the two ends of the external thread 32 are respectively one end of the boss 31 and one end of the connecting shaft 34, the other end of the connecting shaft 34 is one end of the pipe joint threaded thread 33, the other end of the pipe joint threaded thread 33 is in a conical surface, this conical surface is used for the spigot 5 time spigot surface of installation, is convenient for install coupling 5, rubber ring 1 and nut 2 all cup joint on the external screw thread 32 of charging connector 3, coupling 5 with coupling spiro union screw thread 33 spiro union to pass safety hole 22 through fuse 4 and be fixed in on charging connector 3 with coupling 5, when preventing to aerify, coupling 5 drops, the external screw thread 32 external diameter of charging connector 3 is greater than coupling spiro union screw thread 33 external diameter.
Preferably, the charging connector 3 is an integrally formed structure, a central hole is formed in the middle of the charging connector 3 in the axial direction, the connecting shaft 34 on the charging connector 3 is an optical shaft, and the outer diameter of the connecting shaft is smaller than the outer diameter of the pipe joint screw thread 33.
Preferably, the outer diameter of the boss 31 on the charging connector 3 is larger than that of the external thread 32.
Preferably, the aperture of the circular through hole in the middle of the rubber ring 1 is matched with the outer diameter of the external thread 32 on the inflating nozzle 3, and the internal thread 21 of the nut 2 is matched with the external thread 32 on the inflating nozzle 3.
Preferably, the pipe joint screw thread 33 on the inflating nozzle 3 is matched with the inner thread of the pipe joint 5.
Preferably, the pipe joint screw thread 33 of the charging connector 3 is screwed with the pipe joint block cover 8, and the pipe joint block cover 8 is fixed on the charging connector 3 through the fuse 4, so that the pipe joint block cover 8 is prevented from loosening and gas leakage.
Preferably, the pipe joint screw thread 33 of the charging connector 3 is matched with the inner thread of the pipe joint plug 8.
Preferably, the pipe joint screw thread 33 end of the inflating nozzle 3 passes through the body structure 7, the rubber ring 1 and the nut 2 in sequence to be connected with the pipe joint 5, and is fixed by the fuse 4 passing through the safety hole 22 on the nut 2.
Preferably, the pipe joint screw thread 33 end of the charging connector 3 passes through the body structure 7, the rubber ring 1 and the nut 2 in sequence to be connected with the pipe joint block cover 8, and passes through the safety hole 22 on the nut 2 through the fuse 4 to fix the pipe joint block cover.
In the utility model, when inflation is required, the pipe joint screw thread end on the inflation nozzle 3 is connected with the pipe joint 5, after the inflation is finished, the fuse 4, the pipe joint 5 and the hose 6 are detached, and the pipe joint screw thread end on the inflation nozzle 3 is connected with the pipe joint plugging cover 8 for plugging.
In the present invention, the machine body structure 7 is a cabin or an oil tank.
The working principle of the utility model is as follows: the inflating nozzle 3 is fixed on the machine body structure 7 through the rubber ring 1 and the nut 2 in a threaded manner, when inflation is needed, the pipe joint 5 connected with the hose 6 is connected on the inflating nozzle 3 in a threaded manner, then the pipe joint 5 is fixed on the airtight inflating nozzle device through the fuse 4 passing through the safety hole 22, the pipe joint 5 is prevented from loosening in the inflation process, gas enters the machine body structure 7 through the hose 6 and the center hole of the inflating nozzle 3, and the machine body structure 7 is a cabin or an oil tank; after the inflation is finished, the fuse 4, the pipe joint 5 and the hose 6 are detached, the pipe joint plugging cover 8 is used for plugging, then the fuse 4 penetrates through the safety hole 22 to fix the pipe joint plugging cover 8 on the airtight inflation nozzle device, the pipe joint plugging cover 8 is prevented from being loosened and gas leakage is prevented, and then the air tightness test is carried out subsequently.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. The utility model provides a single pass airtight charging connector device which characterized in that: including rubber ring (1), nut (2) and charging connector (3), on charging connector (3) one end was fixed in organism structure (7) through rubber ring (1) and nut (2), the other end was connected with coupling (5), rubber ring (1) was the ring form that the middle part was equipped with circular through-hole, nut (2) were outer hexagon nut, and this nut (2) includes internal thread (21) and safety vent (22), safety vent (22) are equipped with two, adjacent locating respectively on the hexagonal outer wall of nut (2), and all are used for installing fuse (4), charging connector (3) include boss (31), external screw thread (32), connecting axle (34) and coupling spiro union screw thread (33), and are the round axle form, boss (31) and connecting axle (34) one end are respectively at external screw thread (32) both ends, the connecting axle (34) other end is spiro union screw thread (33) one end, the other end of the pipe joint screw thread (33) is a conical surface, the rubber ring (1) and the nut (2) are sleeved on the external thread (32) of the inflating nozzle (3), the pipe joint (5) is in screw connection with the pipe joint screw thread (33) and penetrates through the safety hole (22) through the fuse (4) to fix the pipe joint (5) on the inflating nozzle (3), and the external diameter of the external thread (32) of the inflating nozzle (3) is larger than the external diameter of the pipe joint screw thread (33).
2. The single-pass airtight charging nozzle device according to claim 1, wherein: the inflating nozzle (3) is of an integrally formed structure, a central hole is formed in the middle of the inflating nozzle in the axial direction, a connecting shaft (34) on the inflating nozzle (3) is an optical axis, and the outer diameter of the connecting shaft is smaller than the outer diameter of a pipe joint screw thread (33).
3. The single-pass airtight charging nozzle device according to claim 1, wherein: the outer diameter of a boss (31) on the charging connector (3) is larger than that of the external thread (32).
4. The single-pass airtight charging nozzle device according to claim 1, wherein: the diameter of the circular through hole in the middle of the rubber ring (1) is matched with the outer diameter of the external thread (32) on the inflating nozzle (3), and the internal thread (21) of the nut (2) is matched with the external thread (32) on the inflating nozzle (3).
5. The single-pass airtight charging nozzle device according to claim 1, wherein: and the pipe joint screw thread (33) on the inflating nozzle (3) is matched with the inner thread of the pipe joint (5).
6. The single-pass airtight charging nozzle device according to claim 1, wherein: and a pipe joint screw thread (33) of the charging connector (3) is in screw joint with the pipe joint plug cap (8), and the pipe joint plug cap (8) is fixed on the charging connector (3) through a fuse (4).
7. The single-pass airtight charging nozzle device according to claim 6, wherein: and the pipe joint screw thread (33) of the charging connector (3) is matched with the inner thread of the pipe joint plug cover (8).
8. The single-pass airtight charging nozzle device according to claim 1, wherein: the pipe joint screw thread (33) end of the inflating nozzle (3) sequentially penetrates through the machine body structure (7), the rubber ring (1) and the nut (2) to be connected with the pipe joint (5), and penetrates through a safety hole (22) in the nut (2) through the fuse (4) to fix the pipe joint.
9. The single-pass airtight charging nozzle device according to claim 6, wherein: the pipe joint screw thread (33) end of the inflating nozzle (3) sequentially penetrates through the machine body structure (7), the rubber ring (1) and the nut (2) to be connected with the pipe joint plug cover (8), and penetrates through a safety hole (22) in the nut (2) through the fuse (4) to fix the pipe joint plug cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307059.7U CN215674131U (en) | 2021-06-11 | 2021-06-11 | Single-way airtight inflating nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121307059.7U CN215674131U (en) | 2021-06-11 | 2021-06-11 | Single-way airtight inflating nozzle device |
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| Publication Number | Publication Date |
|---|---|
| CN215674131U true CN215674131U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121307059.7U Active CN215674131U (en) | 2021-06-11 | 2021-06-11 | Single-way airtight inflating nozzle device |
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| Country | Link |
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| CN (1) | CN215674131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949705A (en) * | 2022-12-20 | 2023-04-11 | 中国航空工业集团公司西安飞机设计研究所 | Steel cable capable of being reloaded and steel cable reloading method |
-
2021
- 2021-06-11 CN CN202121307059.7U patent/CN215674131U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949705A (en) * | 2022-12-20 | 2023-04-11 | 中国航空工业集团公司西安飞机设计研究所 | Steel cable capable of being reloaded and steel cable reloading method |
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