CN210173422U

CN210173422U - Crescent spanner

Info

Publication number: CN210173422U
Application number: CN201920932673.9U
Authority: CN
Inventors: Bin Zhang; 张斌
Original assignee: Hna Gulfstream Beijing Technical Service Co Ltd
Current assignee: Hna Gulfstream Beijing Technical Service Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-03-24
Anticipated expiration: 2029-06-20

Abstract

The application discloses crescent spanner relates to spanner technical field, includes: the handle is used for fixing the crescent claw; the crescent claw comprises a main body part and hook heads positioned at two ends of the main body part, the main body part comprises a first arc-shaped side surface, the hook heads comprise a second arc-shaped side surface, and the first arc-shaped side surface and the second arc-shaped side surface are connected and form a crescent structure together; the hook head part comprises a first hook head and a second hook head which are symmetrically distributed; the main part includes that at least one runs through the first through-hole of main part along the thickness direction of main part, and the one end of handle includes the first protruding structure that matches with first through-hole shape, and first protruding structure passes first through-hole, makes handle and crescent claw fixed. When utilizing this crescent spanner to screw up or take off gland nut, first gib head and second gib head homoenergetic card are on gland nut's draw-in groove to can all block two gib heads on gland nut's draw-in groove, difficult pine takes off, and it is convenient to use moreover.

Description

Crescent spanner

Technical Field

The application relates to the technical field of wrenches, in particular to a crescent wrench.

Background

Crescent spanner is also called hook type spanner, is used for screwing up or loosening compression nut, and this kind of nut is characterized in that the periphery has a clamping groove. Generally, only one chuck is arranged at the front end of the crescent wrench, please refer to fig. 1, and fig. 1 shows a schematic structural diagram of the crescent wrench in the prior art, in which the chuck of the crescent wrench is clamped on a clamping groove of a nut to drive the nut to rotate, so as to tighten or loosen the nut.

A compression nut is typically required in the nose gear shock strut, main gear shock strut, or spring ram locations of an aircraft.

And crescent spanner among the prior art only blocks a dop on gland nut's draw-in groove, drives the nut and rotates, and the easy pine takes off, and it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In view of this, this application provides a crescent spanner, gib head portion on its crescent claw includes first gib head and the second gib head of symmetric distribution, when utilizing this crescent spanner to screw up or take off gland nut, first gib head and second gib head homoenergetic card are on gland nut's draw-in groove to can all block two gib heads on gland nut's draw-in groove, be difficult for the pine to take off, it is convenient to use moreover.

In order to solve the technical problem, the following technical scheme is adopted:

a crescent wrench, comprising: the handle is used for fixing the crescent claw;

the crescent claw comprises a main body part and hook head parts positioned at two ends of the main body part, the main body part comprises a first arc-shaped side surface, the hook head parts comprise a second arc-shaped side surface, and the first arc-shaped side surface and the second arc-shaped side surface are connected and form a crescent structure together; the hook head part comprises a first hook head and a second hook head which are symmetrically distributed; the main body portion includes at least one first through hole penetrating the main body portion in a thickness direction of the main body portion,

one end of the handle comprises a first protruding structure matched with the first through hole in shape, and the first protruding structure penetrates through the first through hole to enable the handle to be fixed with the crescent claw.

Optionally, wherein:

the first through hole is a polygonal through hole.

Optionally, wherein:

the first through hole is a square through hole.

Optionally, wherein:

the main body part further comprises a third side face opposite to the first arc-shaped side face, and the third side face is of a plane structure.

Optionally, wherein:

the main body portion and the hook head portion are integrally formed.

Optionally, wherein:

the minimum distance between the first hook head and the second hook head is smaller than the diameter of the circle corresponding to the crescent structure.

Optionally, wherein:

the crescent claw and the handle are made of metal materials.

Compared with the prior art, this application a crescent spanner, reached following effect:

(1) the utility model provides a crescent spanner, including crescent claw and be used for the handle fixed with crescent claw, wherein gib head portion on the crescent claw includes first gib head and the second gib head of symmetric distribution, when utilizing this crescent spanner to screw up or pine takes off gland nut, first gib head and second gib head homoenergetic card are on gland nut's draw-in groove, and the mode of one gib head screens among the prior art is compared to the mode of two gib head screens, and the fixed reliability is higher, and difficult pine takes off, and it is convenient to use moreover.

(2) The utility model provides a crescent spanner, crescent claw's main part includes at least one first through-hole that runs through the main part along the thickness direction of main part, and this first through-hole can be used for fixed handle, so can apply the effort to crescent claw through the handle, drive crescent claw and rotate to conveniently realize utilizing this crescent spanner to screw up or the process that the gland nut was taken off in the pine.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural diagram of a crescent wrench in the prior art;

FIG. 2 is an exploded view of the crescent wrench provided in the embodiments of the present application;

fig. 3 is a schematic structural view of a crescent claw in a crescent wrench according to an embodiment of the present application.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.

Crescent spanner is also called hook type spanner, is used for screwing up or loosening compression nut, and this kind of nut is characterized in that the periphery has a clamping groove. Generally, referring to fig. 1, fig. 1 is a schematic structural diagram of a crescent wrench 200 in the prior art, in which only one chuck 201 is disposed at a front end of the crescent wrench 200, and the chuck 201 of the crescent wrench 200 is clamped on a clamping groove of a nut to drive the nut to rotate, so as to tighten or loosen the nut. A compression nut is typically required in the nose gear shock strut, main gear shock strut, or spring ram locations of an aircraft.

The following detailed description is to be read in connection with the drawings and the detailed description.

Fig. 2 is an exploded view of a crescent wrench 100 according to an embodiment of the present application, and fig. 3 is a schematic structural view of a crescent claw 10 of the crescent wrench 100 according to the embodiment of the present application, please refer to fig. 2 to fig. 3, in which the embodiment of the present application provides a crescent wrench 100 including: the crescent claw 10 and a handle 50 used for being fixed with the crescent claw 10;

the crescent claw 10 comprises a main body part 11 and hook head parts 12 positioned at two ends of the main body part 11, wherein the main body part 11 comprises a first arc-shaped side surface 31, the hook head parts 12 comprise a second arc-shaped side surface 32, and the first arc-shaped side surface 31 and the second arc-shaped side surface 32 are connected and form a crescent structure together; the hook head part 12 comprises a first hook head 21 and a second hook head 22 which are symmetrically distributed; the main body 11 includes at least one first through hole 40 penetrating the main body 11 in a thickness direction of the main body 11,

one end of the handle 50 includes a first protrusion 51 structure matched in shape to the first through hole 40, and the first protrusion 51 structure passes through the first through hole 40 to fix the handle 50 to the crescent 10.

Specifically, with continued reference to fig. 2-3, the crescent wrench 100 provided in the embodiment of the present application includes a crescent claw 10 and a handle 50 for fixing with the crescent claw 10, wherein the main body portion 11 and the hook head portion 12 of the crescent claw 10 form a crescent structure, which is convenient for matching with a round compression nut. Hook portion 12 on crescent 10 includes two gibs heads, be first gib head 21 and second gib head 22 respectively, first gib head 21 and second gib head 22 symmetric distribution, when utilizing this crescent 100 to screw up or loosen and take off gland nut, first gib head 21 and second gib head 22 homoenergetic card are on gland nut's draw-in groove, the mode of one gib head screens among the prior art is compared to the mode of two gib head screens, the fixed reliability is higher, the difficult pine takes off more, and it is convenient to use moreover.

In addition, be provided with on the main part 11 of crescent claw 10 and run through the first through-hole 40 of main part 11 along its thickness direction, this first through-hole 40 can be passed to the first protruding 51 structure of handle 50 one end, and handle 50 and first protruding 51 are similar to a forcing rod, are convenient for drive crescent claw 10 and rotate to the process of this crescent spanner 100 of convenient realization utilization is screwed up or is loosened gland nut.

It should be noted that, in the embodiment of the present application, the shape of the first protrusion 51 is matched with that of the first through hole 40, which means that the outer profile structure of the first protrusion 51 is the same as the profile structure of the first through hole 40, and when the first protrusion 51 is inserted into the first through hole 40, the outer surface of the first protrusion 51 is in direct contact with the inner wall of the first through hole 40 and is spaced a little.

Optionally, in the crescent wrench 100 provided in the embodiment of the present application, the first through hole 40 located on the main body portion 11 of the crescent claw 10 is a polygonal through hole.

When designing first through-hole 40 for the polygonized structure through-hole, inner wall at the through-hole will have a plurality of stress surfaces, so first protruding 51 structure on handle 50 is when penetrating first through-hole 40, first protruding 51 will be for a plurality of stress surfaces apply the effort simultaneously, and a plurality of stress surfaces still to the spacing effect that first protruding 51 played, can effectively avoid taking place relative slip between the stress surface of first protruding 51 and first through-hole 40, thereby can make handle 50 reliably drive crescent 10 and rotate, reliably realize screwing up or the pine of housing screw and take off.

It should be noted that, the drawings provided in the present application only show that the main body 11 of the crescent 10 includes one first through hole 40, in some other embodiments of the present application, two or more first through holes 40 may also be included on the main body 11, and similarly, two or more first protrusions 51 matching with the first through holes 40 may also be included on the handle 50, so as to further facilitate the reliable fixing between the first protrusions 51 and the first through holes 40.

Optionally, referring to fig. 3, in the crescent wrench 100 provided in the embodiment of the present application, the first through hole 40 located on the main body 11 of the crescent claw 10 is a square through hole, so that the handle 50 can be effectively connected with the crescent wrench 100 even after rotating 90 degrees, which is beneficial to adapting to different spaces.

When the first through hole 40 is designed to be a square through hole, the inner wall of the square through hole comprises four stress surfaces, the outer contour structure of the corresponding first protrusion 51 is also square, and when the first protrusion 51 passes through the first through hole 40 through alignment, the four outer surfaces of the first protrusion 51 are matched with the four stress surfaces of the inner wall of the first through hole 40, so that the phenomenon that in the process of applying an acting force to the crescent claw 10 through the handle 50, the first protrusion 51 and the first through hole 40 are relatively displaced to influence the reliability of the applied acting force is avoided.

Optionally, with continued reference to fig. 3, in the crescent wrench 100 provided in the embodiment of the present application, the main body 11 further includes a third side surface 33 disposed opposite to the first arc-shaped side surface 31, and the third side surface 33 is a planar structure.

In particular, since the handle 50 is fixed to the crescent 10 at the end close to the third side 33, the crescent wrench 100 is more convenient to process when the third side 33 is a plane structure. Meanwhile, the first arc-shaped side surface 31 and the second arc-shaped side surface 32 are arranged to be arc-shaped structures in order to match with the shape of the compression nut, so that a good match is formed between the crescent claw 10 and the compression nut.

Alternatively, the crescent claw 10 in the crescent wrench 100 provided in the embodiment of the present application has the main body 11 and the hook head 12 integrally formed.

When the main body part 11 and the hook head part 12 in the crescent 10 are formed in an integrated manner, the main body part 11 and the hook head part 12 form a unified integral structure, and compared with a mechanical connection or other connection manners, the structure is more favorable for improving the connection reliability between the main body part 11 and the hook head part 12, so that the main body part 11 and the hook head part 12 in the crescent 10 are prevented from falling off when a rotation acting force is applied to the crescent 10.

Optionally, in the crescent wrench 100 provided in the embodiment of the present application, the minimum distance between the first hook head 21 and the second hook head 22 is smaller than the diameter of the circle corresponding to the crescent.

Specifically, in this embodiment of the application, when the minimum distance between the first hook head 21 and the second hook head 22 is designed to be smaller than the diameter of the circle corresponding to the crescent structure, the correspondence is embodied as that the first hook head 21 and the second hook head 22 are both located toward the center of the crescent structure, such a design structure facilitates the clamping of the clamping grooves on the first hook head 21 and the second hook head 22 and the gland nut, and the fixation between the first hook head 21 and the clamping groove and the second hook head 22 is more reliable and is less prone to falling off.

It should be noted that, in the crescent 10 provided in the embodiment, the distance between the first hook head 21 and the second hook head 22 may be set to be different according to the size of the compression nut, and the present application is not limited to this.

Optionally, in the crescent wrench 100 provided in the embodiment of the present application, the crescent claw 10 and the handle 50 are both made of a metal material.

Adopt metal material to constitute crescent moon claw 10 and handle 50 for crescent moon claw 10 and handle 50's hardness is bigger, is difficult to warp when receiving the exogenic action, therefore can drive gland nut rotation better, makes gland nut realize reliably screwing up or the pine takes off.

According to the embodiments, the application has the following beneficial effects:

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims

1. A crescent wrench, comprising: the handle is used for fixing the crescent claw;

2. The crescent wrench as claimed in claim 1, wherein the first through-hole is a polygonal-structured through-hole.

3. The crescent wrench as claimed in claim 2, wherein the first through-hole is a square through-hole.

4. The crescent wrench of claim 1, wherein the body portion further includes a third side disposed opposite the first arcuate side, the third side being a planar structure.

5. The crescent wrench of claim 1, wherein the body portion and the hook head portion are integrally formed.

6. The crescent wrench as claimed in claim 1, wherein the minimum distance between the first and second barbs is less than the diameter of the circle to which the crescent corresponds.

7. The crescent wrench as claimed in claim 1, wherein the crescent claw and the handle are both made of metal.