CN216504768U

CN216504768U - Mandrel pin wrench

Info

Publication number: CN216504768U
Application number: CN202122794368.8U
Authority: CN
Inventors: 张斌
Original assignee: Hna Gulfstream Beijing Technical Service Co ltd
Current assignee: Hna Gulfstream Beijing Technical Service Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-13
Anticipated expiration: 2031-11-15

Abstract

The utility model relates to a mandrel pin spanner belongs to repair tools's field, and it establishes the portion including the cover, the cover is established and is provided with the hole of stepping down that supplies fixation nut to wear to establish in the portion, be provided with at least one lug on the inner wall in the hole of stepping down, the lug can be dismantled and insert and locate fixation nut's open slot, the cover is established and is provided with the rotation portion that the staff of being convenient for rotated the cover and establishes the portion in the portion. This application has the staff of being convenient for and rotates fixation nut's effect.

Description

Mandrel pin wrench

Technical Field

The present application relates to the field of service tools, and more particularly, to a mandrel pin wrench.

Background

In the routine maintenance of an aircraft, it is often necessary to remove the mandrel pin from the aircraft, and the mandrel pin is usually provided with an unconventional fixing nut by means of which the mandrel pin is fixed to the aircraft.

Referring to fig. 1, in a fixing nut 100 according to the related art, the fixing nut 100 is annular as a whole, internal threads are provided on an inner circumferential wall of the fixing nut 100, and an even number of open grooves 101 are provided at one end of the fixing nut 100. The plurality of open grooves 101 are evenly arranged around the axis of the fixing nut 100. When a worker needs to screw down the fixing nut 100 on an airplane, it is usually necessary to abut the blade of the screwdriver against the inner wall of the open slot 101 and then strike the screwdriver to force the fixing nut 100 to rotate.

In view of the above-mentioned related art, the inventor believes that the fixing nut 100 is inconveniently disassembled by requiring frequent use of a striking screwdriver to turn the fixing nut 100 during the routine maintenance of the aircraft.

SUMMERY OF THE UTILITY MODEL

To facilitate the rotation of the fixing nut by the worker, the present application provides a spindle pin wrench.

The application provides a mandrel pin spanner adopts following technical scheme:

the mandrel pin wrench comprises a sleeve arranging portion, wherein a yielding hole for the fixing nut to penetrate is formed in the sleeve arranging portion, at least one protruding block is arranged on the inner wall of the yielding hole, the protruding block can be detachably inserted into an open groove formed in the fixing nut, and a rotating portion which is convenient for a worker to rotate the sleeve arranging portion is arranged on the sleeve arranging portion.

By adopting the technical scheme, when a worker needs to rotate the fixing nut, the sleeving part is sleeved on the fixing nut through the abdicating hole, the convex block is clamped into the open slot of the fixing nut, and then the worker drives the fixing nut to rotate through rotating the rotating part; compared with the related art, the spindle pin wrench has the effect of facilitating the rotation of the fixing nut by a worker.

Optionally, an interface for connecting a ratchet wrench is arranged on the rotating part.

Through adopting above-mentioned technical scheme, the staff passes through the interface and will rotate the portion and be connected with the ratchet spanner, has prolonged the arm of force that rotates fixation nut, has reduced the staff and has screwed up and the required power that uses when loosely unloading fixation nut for staff's work efficiency.

Optionally, the sleeving part is plate-shaped, the rotating part is plate-shaped, and the sleeving part and the rotating part are integrally formed.

Through adopting above-mentioned technical scheme, this mandrel round pin spanner simple structure, the preparation of being convenient for has reduced mandrel round pin spanner's manufacturing cost.

Optionally, each corner of the mandrel pin wrench is provided with a fillet.

Through adopting above-mentioned technical scheme, reduced this mandrel pin spanner fish tail staff's possibility.

Optionally, the hole of stepping down is the circular port, the aperture in hole of stepping down and fixation nut's external diameter adaptation.

Through adopting above-mentioned technical scheme, strengthened mandrel pin spanner's stability.

Optionally, the protrusion is a rectangular block, and when the protrusion is inserted into the open slot, two side walls of the protrusion opposite to the open slot are both in surface contact.

By adopting the technical scheme, when the fixing nut is rotated, the pressure between the lug and the fixing nut is reduced through surface contact, the abrasion between the lug and the fixing nut is reduced, and the service lives of the mandrel pin wrench and the fixing nut are prolonged.

Optionally, the protrusion is a right-angled triangle block, and when the protrusion is inserted into the open slot, the protrusion contacts with one side wall surface of the open slot.

Through adopting above-mentioned technical scheme, reduced the material on the mandrel round pin spanner, reduce the cost, resources are saved.

Optionally, the plurality of protruding blocks are arranged, when the protruding blocks are inserted into the open slots, part of the protruding blocks are used for screwing the fixing nuts, and the other part of the protruding blocks are used for loosening the fixing nuts.

Through adopting above-mentioned technical scheme, the staff need not the upset dabber spanner alright follow two not equidirectional rotation fixation nut, convenient and fast.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a worker needs to rotate the fixing nut, the sleeving part is sleeved on the fixing nut through the abdicating hole, the lug is clamped into the open slot of the fixing nut, and then the worker drives the fixing nut to rotate through rotating the rotating part; compared with the related art, the spindle pin wrench has the effect of facilitating the worker to rotate the fixing nut;

2. the rotating part is connected with the wrench through the interface by the worker, so that the force arm for rotating the fixing nut is prolonged, the force required by the worker for screwing and unscrewing the fixing nut is reduced, and the working efficiency of the worker is accelerated;

3. the mandrel pin wrench is simple in structure and convenient to manufacture, and the production cost of the mandrel pin wrench is reduced.

Drawings

Fig. 1 is a schematic structural view of a fixing nut provided in the related art.

Fig. 2 is a schematic structural diagram of a spindle pin wrench according to embodiment 1 of the present application.

Fig. 3 is a schematic structural diagram of a spindle pin wrench according to embodiment 2 of the present application.

Description of reference numerals: 100. fixing a nut; 101. an open slot; 200. a spindle pin wrench; 210. a housing portion; 211. a hole of abdication; 220. a rotating part; 221. an interface; 230. and (4) a bump.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a mandrel pin wrench 200.

Example 1:

referring to fig. 1 and 2, the spindle pin wrench 200 is integrally formed in a plate-shaped structure, and the spindle pin wrench 200 includes a sheathing part 210 and a rotating part 220. The surface of the sleeving part 210 is square, the surface of the rotating part 220 is isosceles trapezoid, and a longer bottom edge of the rotating part 220 and one edge of the sleeving part 210 share one edge. The rotating portion 220 and the sheathing portion 210 are integrally formed. All be provided with the fillet at all corners of mandrel pin spanner 200, reduced mandrel pin spanner 200 fish tail staff's risk.

Set up one at the middle part position of cover portion 210 and supply fixation nut 100 to wear to establish and let a hole 211, let a hole 211 be a circular port, and let the aperture of hole 211 and fixation nut 100's external diameter looks adaptation. The worker can conveniently sleeve the sleeve part 210 on the fixing nut 100 through the abdicating hole 211.

Four bumps 230 are integrally formed on the inner wall of the yielding hole 211, and the four bumps 230 are uniformly distributed along the inner wall of the yielding hole 211 for a circle. The bumps 230 are rectangular blocks, the length directions of the four bumps 230 all point to the center of the yielding hole 211, and when the bumps 230 are inserted into the open slot 101, two side walls of the bumps 230 opposite to the open slot 101 are both in surface contact.

An interface 221 for connecting a ratchet wrench is formed in the middle of the rotating portion 220, and the interface 221 is a square opening. The inner wall of the interface 221 close to the sleeving part 210 is parallel to the side wall of the sleeving part 210 departing from the rotating part 220.

The implementation principle of the embodiment 1 is as follows: when a worker needs to screw the fixing nut 100, the worker firstly sleeves the sleeve portion 210 on the fixing nut 100 through the abdicating hole 211, and inserts the protrusion 230 into the opening groove 101, wherein two opposite side walls of the protrusion 230 and the opening groove 101 are in surface contact. Then, the ratchet wrench is connected to the rotating portion 220 through the interface 221 to extend the force arm for rotating the fixing nut 100, and finally, the ratchet wrench is pulled to drive the fixing nut 100 to rotate through the protrusion 230 inserted in the opening groove 101, thereby fastening or loosening the fixing nut 100.

Example 2:

referring to fig. 1 and 3, the present embodiment is different from embodiment 1 in that the bump 230 is a right-angled triangular block. The right-angled triangular surface of the bump 230 and the board surface of the sleeve portion 210 are in the same plane. One square edge of the protrusion 230 is integrally formed on the inner wall of the relief hole 211, and the other square edge is used for pushing the fixing nut 100 to rotate. The four bumps 230 are divided into two groups, two opposite bumps 230 are one group, and the right-angle sides of the two groups of bumps 230 are opposite in rotation direction. When the four protrusions 230 are inserted into the opening grooves 101, one group of the protrusions 230 is used for screwing the fixing nut 100, and the other group of the protrusions 230 is used for unscrewing the fixing nut 100.

The implementation principle of the embodiment 2 is as follows: when the worker needs to rotate the fixing nut 100, the sheathing part 210 is sheathed on the fixing nut 100 through the abdicating hole 211, the convex block 230 is inserted into the open slot 101, and the right-angle side of the convex block 230 abuts against the side wall of the open slot 101. Then, the ratchet wrench is connected to the rotating portion 220 through the interface 221 to extend the force arm for rotating the fixing nut 100, and finally, the ratchet wrench is pulled to drive the fixing nut 100 to rotate through the protrusion 230 inserted in the opening groove 101, thereby fastening or loosening the fixing nut 100.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Mandrel pin spanner, its characterized in that: establish portion (210) including the cover, be provided with on the portion is established to the cover (210) and supply yielding hole (211) that fixation nut (100) wore to establish, be provided with at least one lug (230) on the inner wall of yielding hole (211), lug (230) can be dismantled and insert and locate open slot (101) of fixation nut (100), be provided with rotation portion (220) that the staff of being convenient for rotated the cover and establish portion (210) on the portion is established to the cover (210).

2. The spindle pin wrench of claim 1, wherein: an interface (221) for connecting a ratchet wrench is arranged on the rotating part (220).

3. The spindle pin wrench of claim 1, wherein: the sleeving part (210) is plate-shaped, the rotating part (220) is plate-shaped, and the sleeving part (210) and the rotating part (220) are integrally formed.

4. The spindle pin wrench of claim 3, wherein: and each corner of the mandrel pin wrench is provided with a fillet.

5. The spindle pin wrench of claim 1, wherein: the hole of stepping down (211) is the circular port, the aperture of the hole of stepping down (211) and the external diameter adaptation of fixation nut (100).

6. The spindle pin wrench of claim 1, wherein: the lug (230) is a rectangular block, and when the lug (230) is inserted into the open slot (101), two opposite side walls of the lug (230) and the open slot (101) are in surface contact.

7. The spindle pin wrench of claim 1, wherein: the lug (230) is a right-angled triangular block, and when the lug (230) is inserted into the open slot (101), the lug (230) is in contact with one side wall surface of the open slot (101).

8. The spindle pin wrench of claim 7, wherein: the lug (230) is provided with a plurality of lugs, when the lug (230) is inserted into the open slot (101), one part of the lug (230) is used for screwing the fixing nut (100), and the other part of the lug (230) is used for loosening the fixing nut (100).