CN217669075U - Round nut dismounting wrench for aircraft oxygen system - Google Patents
Round nut dismounting wrench for aircraft oxygen system Download PDFInfo
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- CN217669075U CN217669075U CN202221801816.0U CN202221801816U CN217669075U CN 217669075 U CN217669075 U CN 217669075U CN 202221801816 U CN202221801816 U CN 202221801816U CN 217669075 U CN217669075 U CN 217669075U
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Abstract
The utility model provides an aircraft oxygen system round nut dismantles spanner belongs to aircraft assembly technical field, uses by spanner head and torque tool two parts combination. The utility model discloses combine aircraft actual assembly environment and characteristic, set up the spanner head into crescent, divide into the installation and dismantle two patterns, combine spanner head and torque wrench are ingenious, can solve the narrow and small difficult problem of dismantling and installing the stroke little in space, can reach the standard moment of torsion, can accomplish assembly work under the condition of not injuring the pipe joint again, work efficiency promotes by a wide margin, has effectively guaranteed pipe assembly quality. The utility model discloses appearance novel structure, the installation is fixed simple, and the simple operation can easily realize the installation and the dismantlement of pipe, and very big solution is because of the difficult problem of operating space not enough, unable tightening limit force.
Description
Technical Field
The utility model belongs to the technical field of the aircraft assembly, a use method of aircraft oxygen system pipe round nut dismouting spanner is related to, can realize the installation and the dismantlement to aircraft oxygen system pipe, especially relate to an aircraft oxygen system round nut dismantlement spanner.
Background
The aircraft oxygen system comprises an oxygen supply system, an anti-load system, a pilot ventilation suit ventilation system and pilot protection equipment. The oxygen supply system has the main functions of supplying breathing oxygen for pilots in the range of the flying height of the airplane; the anti-loading system is used for carrying out pressurization protection on the body surface of a pilot when the airplane carries out maneuvering flight so as to improve the anti-overload capacity of the airplane body and reduce the adverse effect of overload on the human body; the ventilation system of the ventilation suit is arranged for improving the working environment of a pilot, so that the body of the pilot is protected from being affected by supercooling and overheating in all flight states, the working environment of the pilot is more comfortable, and the oxygen system is very important for the pilot. At present, the installation of the oxygen system conduit can also meet the requirement of a pattern, but the installation process is time-consuming and labor-consuming, firstly, because the installation area is a semi-closed area, the space is narrow, the installation stroke of a common wrench is small, the matching degree of tools is not high, and the assembly period is long; secondly, if the guide pipe breaks down or other systems break down and need to be disassembled, the disassembly process is more difficult, the guide pipe is frequently sawed to be disassembled and replaced, and the product loss is larger.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides an aircraft oxygen system round nut dismantles spanner, combine the actual assembly environment of aircraft and characteristic, the spanner head sets up to the crescent, the dismouting spanner contains the installation and dismantles two patterns, it is different to lie in the position of crescent department dog, handle department sets up a square hole, a connection for the power limiting tool, realize the inconvenient extension operation of operating space, can solve the narrow and small difficult problem of dismantling and installation stroke in space, the pipe nut limit force effect has directly been realized, the process of using the power limiting spanner again to limit force has been avoided once more, the effectual installation quality of having guaranteed.
The technical scheme of the utility model:
the utility model provides an aircraft oxygen system round nut dismantles spanner, the spanner includes spanner head and power limiting tool, and both combined use accomplishes the installation and the dismantlement of nut.
The wrench head comprises a wrench head 1, a handle 2 and a stop dog 3, and is divided into two types according to two purposes of installation and disassembly, wherein the type 1 is used for installation, and the type 2 is used for disassembly. The handle 2 is of a plate-shaped structure, a square hole is formed in the handle and used for connecting a force limiting tool, and the nut is screwed and unscrewed by utilizing the lever principle; the wrench head 1 is crescent, the lower end of the wrench head is fixedly connected with the handle 2, and the wrench head 1 is nested outside the nut and used for mounting and dismounting by screwing the nut when in use; dog 3 welding on 1 inboard top of wrench end and towards centre of a circle direction, 3 welding position of dog of pattern 1 are close to the back border, 3 welding position of dog of pattern 2 are close to the front border, dog 3 is fixed in the draw-in groove of round nut during the use, play limiting displacement, through exerting the power on handle 2, realize screwing and unscrewing of nut, accomplish its installation and dismantlement process.
The force limiting tool comprises a head 4, a locking ring 5, a change-over switch 6, a force limiting sensor 7, a ratchet joint 8, a connecting rod 9, a handle 10 and a rubber sleeve 11. The head part 4 is the head part of the force limiting wrench, one side of the head part is provided with a locking ring 5, the locking ring fixes a ratchet joint 8 on the head part 4, the ratchet joint 8 is used for realizing the connection of the force limiting wrench and the head part of the wrench, and the locking ring 5 is mainly used for fastening the ratchet joint 8 to prevent loosening; the change-over switch 6 is arranged on the head part 4 below the locking ring 5 and is used for changing the screwing direction of the wrench; the connecting rod 9 is made of steel materials, the upper part of the connecting rod is connected with the head part 4, the lower part of the connecting rod is connected with the handle 10, and the handle 10 is used for applying force to enable the wrench to realize screwing and unscrewing of the nut so as to finish the mounting and dismounting processes; the force limiting sensor 7 is arranged on one side of the grip 10 and is used for adjusting the torque value to reach a limiting torque; the rubber sleeve 11 is covered around the surface of the handle 10 and made of rubber material, which plays a role of skid resistance.
Further, the wrench head 1 is made of a high-hardness and wear-resistant steel material.
Further, the handle 2 is mainly made of a high-hardness and wear-resistant steel material, and the main function of the handle is to extend the wrench head.
Furthermore, the stop block 3 is mainly made of high-hardness and wear-resistant steel material.
Further, the connecting rod 9 is mainly made of a high-hardness steel material.
The utility model has the advantages that:
(1) The utility model discloses appearance novel structure, the installation is fixed simple, and the simple operation can easily realize the installation and the dismantlement of pipe, and very big solution is because of the difficult problem of operating space not enough, unable tightening limit force.
(2) The utility model discloses a biggest bright spot can combine spanner head and torque wrench are ingenious, can reach standard moment of torsion, can accomplish assembly work under the condition of not injuring pipe joint again, and work efficiency promotes by a wide margin, has effectively guaranteed the pipe assembly quality.
(3) The utility model discloses an installation and the dismantlement work of other pipe-line system round nut pipes of still being applicable to the aircraft are another bright spot, to the limit force requirement of different pipes, only need change different torque range the limit force spanner can, convenient and fast promotes product assembly quality.
Drawings
Fig. 1 (a) is a front view of a wrench head style 1.
Fig. 1 (b) is a front view of a head model 2 of the wrench.
Fig. 2 (a) is a plan view of wrench head style 1.
Fig. 2 (b) is a top view of wrench head style 2.
Fig. 3 (a) is a front view of the force limiting tool.
Fig. 3 (b) is a side view of the force limiting tool.
In the figure: 1, a wrench head; 2, a handle; 3, a stop block; 4, a head part; 5, locking a ring; 6, a change-over switch; 7 force limiting sensor; 8, a ratchet joint; 9 connecting rods; 10 a handle; 11 rubber sleeve.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Example 1
The utility model provides an aircraft oxygen system round nut dismantles spanner, the spanner includes spanner head and power limiting tool, and both combined use accomplishes the installation and the dismantlement of nut.
The wrench head comprises a wrench head 1, a handle 2 and a stop block 3, and is divided into two types according to two purposes of installation and disassembly, wherein the type 1 is used for installation, the type 2 is used for disassembly, and the type 1 is used in the embodiment. The handle 2 is of a plate-shaped structure, is internally provided with a square hole, is made of high-hardness and wear-resistant steel materials, is used for connecting a force limiting tool, and realizes the screwing and unscrewing of the nut by utilizing the lever principle; the wrench head 1 is crescent and made of high-hardness and wear-resistant steel materials, the lower end of the wrench head is fixedly connected with the handle 2, the wrench head 1 is nested outside the nut when in use, and the nut is screwed for installation and disassembly; the check block 3 is made of high-hardness and wear-resistant steel materials, is welded at the top end of the inner side of the wrench head 1 and faces the direction of the circle center, the welding position of the check block 3 of the pattern 1 is close to the rear edge, as shown in fig. 1 (a) and fig. 2 (a), the check block 3 is fixed in a clamping groove of a round nut during use to play a limiting role, and the nut is screwed and unscrewed by applying force on the handle 2 to complete the installation and disassembly process of the nut.
As shown in fig. 3 (a) and 3 (b), the force limiting tool comprises a head 4, a locking ring 5, a change-over switch 6, a force limiting sensor 7, a ratchet joint 8, a connecting rod 9, a grip 10 and a rubber sleeve 11. The head part 4 is the head part of the force limiting wrench, one side of the head part is provided with a locking ring 5, the locking ring fixes a ratchet joint 8 on the head part 4, the ratchet joint 8 is used for realizing the connection of the force limiting wrench and the head part of the wrench, and the locking ring 5 is mainly used for fastening the ratchet joint 8 to prevent loosening; the change-over switch 6 is arranged on the head part 4 below the locking ring 5 and is used for changing the screwing direction of the wrench; the connecting rod 9 is made of steel materials, the upper part of the connecting rod is connected with the head part 4, the lower part of the connecting rod is connected with the handle 10, and the handle 10 is used for applying force to enable the wrench to realize screwing and unscrewing of the nut so as to finish the mounting and dismounting processes; the force limiting sensor 7 is arranged on one side of the handle 10 and is used for adjusting the torque value to reach a limiting torque; the rubber sleeve 11 is covered around the surface of the handle 10 and made of rubber material, which plays a role of skid resistance.
The installation process of the oxygen system conduit of the airplane is as follows:
(1) The oxygen conduit round nut is tightened by hand.
(2) The head (style 1) of the wrench is fixed at the position of the conduit outer sleeve nut, so that the stop block is clamped at the notch of the round nut.
(3) And adjusting the force limiting sensor 7 to a certain torque value according to the requirements of the process files, connecting a force limiting tool in the square hole on the handle 2, pressing the torque rod, and performing circular operation to realize screwing.
(4) During the screwing process, when the force limiting tool makes creaky sound, the torque value of the guide pipe round nut is proved to be up to the requirement.
(5) After the operation is finished, the wrench is disassembled to secure the conduit and the round nut, and the work is finished.
Example 2
The utility model provides an aircraft oxygen system round nut dismantles spanner, the spanner includes spanner head and power limiting tool, and both combined use accomplish the installation and the dismantlement of nut.
The wrench head comprises a wrench head 1, a handle 2 and a stop block 3, and is divided into two types according to two purposes of installation and disassembly, wherein the type 1 is used for installation, the type 2 is used for disassembly, and the type 2 is used in the embodiment. The handle 2 is of a plate-shaped structure, is internally provided with a square hole, is made of high-hardness and wear-resistant steel materials, is used for connecting a force limiting tool, and realizes the screwing and unscrewing of the nut by utilizing the lever principle; the wrench head 1 is crescent and made of high-hardness and wear-resistant steel materials, the lower end of the wrench head is fixedly connected with the handle 2, the wrench head 1 is nested outside the nut, and the nut is screwed for installation and disassembly; the stop dog 3 is made of high-hardness and wear-resistant steel materials, the stop dog is welded at the top end of the inner side of the wrench head 1 and faces the direction of the circle center, the welding position of the stop dog 3 is close to the front edge, as shown in fig. 1 (b) and fig. 2 (b), the stop dog 3 is fixed in a clamping groove of a round nut during use to play a limiting role, and the nut is screwed and unscrewed through the force applied to the handle 2 to complete the installation and disassembly processes of the nut.
The wrench head is made of steel material.
As shown in fig. 3 (a) and 3 (b), the force limiting tool comprises a head 4, a locking ring 5, a change-over switch 6, a force limiting sensor 7, a ratchet joint 8, a connecting rod 9, a grip 10 and a rubber sleeve 11. A locking ring 5 is arranged on one side of the head part 4 and fixes a ratchet joint 8 on the head part 4, and the ratchet joint 8 is used for realizing the connection between a torque wrench and the wrench head part; the change-over switch 6 is arranged on the head part 4 below the locking ring 5 and is used for changing the screwing direction of the wrench; the connecting rod 9 is made of steel materials, the upper part of the connecting rod is connected with the head part 4, the lower part of the connecting rod is connected with the handle 10, and the handle 10 is used for applying force to enable the wrench to realize screwing and unscrewing of the nut so as to finish the mounting and dismounting processes; the force limiting sensor 7 is arranged on one side of the handle 10 and is used for adjusting the torque value to reach a limiting torque; the rubber sleeve 11 is covered on the surface of the handle 10, is made of rubber material and plays a role in skid resistance.
The aircraft oxygen system conduit dismounting process comprises the following steps:
(1) The head (style 2) of the wrench is fixed at the position of the round nut of the guide pipe, so that the stop block is clamped at the notch of the round nut.
(2) The force limiting tool is connected in the square hole on the handle 2, and the force limiting tool is pressed to realize unscrewing through cyclic operation.
(3) After the screw is loosened to a certain degree, the round nut is disassembled by hand.
(4) Disconnecting the conduit and replacing the failed conduit or fitting.
(5) And then the head of the wrench is replaced, and the installation work of the fault conduit or joint is realized according to the installation flow.
(6) After the operations are completed, the wrench is disassembled, and the work is finished.
The above-mentioned embodiments only represent embodiments of the present invention, but can not be understood as limitations to the scope of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.
Claims (3)
1. The round nut dismantling wrench for the aircraft oxygen system is characterized by comprising a wrench head and a force limiting tool;
the wrench head comprises a wrench head (1), a handle (2) and a stop block (3), and is divided into two types according to two purposes of installation and disassembly, wherein the type 1 is used for installation, and the type 2 is used for disassembly; the handle (2) is of a plate-shaped structure, is internally provided with a square hole and is used for connecting a force limiting tool; the wrench head (1) is crescent, the lower end of the wrench head is fixedly connected with the handle (2), the wrench head (1) is nested outside the nut when in use, and the wrench head is used for installation and disassembly by screwing the nut; the stop dog (3) is welded at the top end of the inner side of the wrench head (1) and faces the direction of the circle center, the welding position of the stop dog (3) in the pattern 1 is close to the rear edge, the welding position of the stop dog (3) in the pattern 2 is close to the front edge, the stop dog (3) is fixed in a clamping groove of a round nut to play a limiting role in use, and the nut is screwed and unscrewed by force applied to the handle (2) to complete the mounting and dismounting process of the nut;
the force limiting tool comprises a head (4), a locking ring (5), a change-over switch (6), a force limiting sensor (7), a ratchet joint (8), a connecting rod (9), a handle (10) and a rubber sleeve (11); the head (4) is the head of the force limiting wrench, one side of the head is provided with a locking ring (5) which fixes a ratchet joint (8) on the head (4), the ratchet joint (8) is used for realizing the connection between the force limiting wrench and the head of the wrench, and the locking ring (5) is mainly used for fastening the ratchet joint (8) to prevent loosening; the change-over switch (6) is arranged on the head part (4) below the locking ring (5) and is used for changing the screwing direction of the wrench; the connecting rod (9) is made of steel materials, the upper part of the connecting rod is connected with the head (4), the lower part of the connecting rod is connected with the handle (10), and the handle (10) is used for applying force to enable the wrench to realize screwing and unscrewing of the nut so as to finish the mounting and dismounting processes of the wrench; the force limiting sensor (7) is arranged on one side of the grip (10) and is used for adjusting the torque value to reach a limiting torque; the rubber sleeve (11) is covered on the surface of the grip (10) in a surrounding way.
2. An aircraft oxygen system round nut breakout wrench according to claim 1, characterized in that the wrench head (1), the handle (2) and the stop (3) are made of steel material.
3. An aircraft oxygen system round nut breakout wrench according to claim 1, characterized in that the connecting rod (9) is made of a high hardness steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801816.0U CN217669075U (en) | 2022-07-13 | 2022-07-13 | Round nut dismounting wrench for aircraft oxygen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221801816.0U CN217669075U (en) | 2022-07-13 | 2022-07-13 | Round nut dismounting wrench for aircraft oxygen system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217669075U true CN217669075U (en) | 2022-10-28 |
Family
ID=83717535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221801816.0U Active CN217669075U (en) | 2022-07-13 | 2022-07-13 | Round nut dismounting wrench for aircraft oxygen system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217669075U (en) |
-
2022
- 2022-07-13 CN CN202221801816.0U patent/CN217669075U/en active Active
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