Nut

Abstract

The utility model relates to the technical field of mechanical structure connection, in particular to a nut, which comprises a nut body and an abutting section, and the nut body comprises a threaded hole and a plurality of continuous and intersected outer arc surfaces. And the external sleeve can be clamped on the outer arc-shaped surface at any angle and can drive the nut body to rotate, so that the nut is tightened and fixed. One end of the abutting section is connected to the nut body, the other end of the abutting section abuts against the working face, the contact face of the nut and the working face is enlarged, on one hand, friction force between the working face and the nut and shock resistance of the whole nut are improved, and stability of connection between the nut and the working face is improved; on the other hand, the direct acting pressure of the nut body on the working face is reduced, and the bearing capacity of the nut is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical structure connection technical field, specifically, relate to a nut. BACKGROUND

[0002] The nut is a common mechanical fastener, the metal fitting with internal thread is used for cooperating with the bolt, and the connection and fixation of parts are realized.

[0003] The existing nut is hexagonal, and the side surface of the nut is a vertical surface, when cooperating with the sleeve and being tightened, the axes of the two need to coincide to realize the tightening, but when being fixed in a narrow space, due to the space limitation, it is difficult to realize the locking by cooperating with the sleeve, such as the spherical nut mentioned in CN201401422Y, the contact position of the edge and the working surface is small, and the locking effect is poor. UTILITY MODEL CONTENT

[0004] The utility model is made to solve the above technical problem, and the purpose is to provide a nut, which is externally provided with continuous and intersecting outer arc surfaces, so that the nut can be tightened and locked by using the sleeve in a narrow space.

[0005] In order to realize the above purpose, the utility model provides a nut, which comprises a nut body, a thread hole at the center and a plurality of continuous and intersecting outer arc surfaces at the outer periphery, an abutting section, one end of which is connected to the nut body, and the other end of which abuts against a working surface.

[0006] Preferably, a transition section is further included and is arranged between the nut body and the abutting section.

[0007] Preferably, the nut body, the transition section and the abutting section are coaxially arranged.

[0008] Preferably, the diameter of the nut body is greater than the diameter of the transition section and is less than or equal to the diameter of the abutting section.

[0009] Preferably, the nut body, the transition section and the abutting section are integrally formed.

[0010] Preferably, the thread hole penetrates the transition section and the abutting section.

[0011] Preferably, the thread hole penetrates the nut body, the transition section and the abutting section.

[0012] Preferably, the thread hole is a forward thread hole or a reverse thread hole.

[0013] Preferably, the central angle of the outer arc surface is 60 degrees.

[0014] The utility model provides a nut, including nut body and butt joint section, nut body includes screw hole and a plurality of continuous and intersecting outer arc surface. The sleeve of outside can be connected in the outer arc surface at any angle, and can drive the nut body rotation, realizes the tightening fixed of nut. When the nut is located in the small space, through the sleeve with certain angle clamping on the nut body, the sleeve still can realize rotating the nut to fix the nut on the working surface. Butt joint section one end is connected to the nut body, the other end butt joint is in the working surface, is used for increasing the contact area of nut and working surface, improves the friction between working surface and nut and the whole nut shock resistance on one hand, to increase the stability of the connection between nut and working surface, on the other hand, reduces the effect pressure intensity of nut body directly to the working surface, improves the carrying capacity of nut. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure schematic view of the nut of an embodiment of the utility model.

[0016] Fig. 2 It is the structure schematic view of another view of the nut of an embodiment of the utility model.

[0017] Fig. 3 It is the side view of the nut of an embodiment of the utility model.

[0018] Fig. 4 It is the section view of the nut of an embodiment of the utility model.

[0019] The reference signs in the drawings are:

[0020] 1, nut body 10, screw hole 11, outer arc surface

[0021] 2, butt joint section 3, transition section DETAILED DESCRIPTION

[0022] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings. The exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the exemplary embodiments to those skilled in the art. The features, structures, or characteristics described in connection with the embodiments can be combined in any suitable manner in one or more embodiments.

[0023] In addition, the accompanying drawings are only schematic and are non-limiting illustrative of the present disclosure. Like references denote like elements throughout the skilled sections of the specification. Merely by way of example, the present disclosure can be embodied in the following aspects. The word comprising and the like does not necessarily mean that all the following listed elements must be included. The word "a" or "an" preceding an element does not exclude the presence of more than one of the element. Further, the description given above largely describes only the preferred embodiments of the present disclosure and is not intended to represent the only forms in which the present disclosure can be constructed or utilized. The following aspects of the present disclosure can be used separately or in any combination.

[0024] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.

[0025] The nut is a common mechanical fastener, which is a metal fitting with internal threads, used to cooperate with a bolt to achieve the connection and fixation between two parts. The existing nut is mostly hexagonal in shape, and the side surface of the nut is a vertical surface. When the sleeve is tightened, the axes of the two need to coincide to achieve tightening. However, when fixed in a small space, it is difficult to use the sleeve vertically to achieve coaxial cooperation with the nut for locking. Moreover, the fastening method is single. Due to space limitations, artificial knocking and hollow hydraulic wrench are mainly used as fastening methods, which not only consumes time and effort, but also has low operation efficiency.

[0026] A nut is disclosed in the utility model, please refer to Figs. 1 to 4In some embodiments, the nut comprises a nut body 1 and an abutting section 2, the nut body 1 comprises a central threaded hole 10 and a plurality of continuous and intersecting outer arc surfaces 11 on the outer periphery. The outer sleeve can be clamped at any angle on the outer arc surface 11, and can drive the nut body 1 to rotate, realizing the tightening and fixing of the nut. Specifically, the clamping angle of the sleeve and the outer arc surface 11 can be 25 degrees, 30 degrees, 35 degrees, 40 degrees, etc. When the nut is in a narrow space, the sleeve is clamped on the nut body 1 at a certain angle, and the nut can still be rotated by rotating the sleeve to fix the nut on the working surface. The abutting section 2 is connected to the nut body 1 at one end and abuts the working surface at the other end. By increasing the abutting section 2, the contact area between the nut body 1 and the working surface is increased, which on the one hand improves the friction between the working surface and the nut and the shock resistance of the entire nut, thereby increasing the stability of the connection between the nut and the working surface; on the other hand, it reduces the acting pressure intensity of the nut body 1 directly on the working surface, thereby improving the carrying capacity of the nut.

[0027] Further, in order to avoid the sleeve being clamped on the outer arc surface 11 of the nut body 1 and interfering with the working surface, causing the sleeve to be unable to drive the nut to rotate due to position limitation, in some embodiments, the nut further comprises a transition section 3, which is arranged between the nut body 1 and the abutting section 2, and is used to provide a certain transition space between the nut body 1 and the sleeve and between the abutting surface and the working surface, so as to avoid the top of the sleeve abutting the abutting section 2 when the sleeve is clamped on the outer arc surface 11, affecting the rotation of the sleeve, and further affecting the tightening and fixing of the nut.

[0028] It can be understood that in some embodiments, the nut body 1, the transition section 3 and the abutting section 2 are coaxially arranged to ensure that when the sleeve is used to tighten or loosen the nut, the sleeve is clamped on the nut body 1 to drive the transition section 3 and the abutting section 2 to rotate together, so that the nut can rotate under the action of the sleeve regardless of the direction of the force acting on the nut, thereby completing the tightening and loosening of the nut.

[0029] In some embodiments, the diameter of the nut body 1 is greater than the diameter of the transition section 3 and less than or equal to the diameter of the abutting section 2. In order to ensure that the transition section 3 does not jam in the sleeve when the nut body 1 is tightened or loosened by the sleeve, the diameter of the transition section 3 is smaller than the diameter of the nut body 1 and the diameter of the abutting section 2, so as to avoid the sleeve being clamped on the transition section 3. In addition, the diameter of the nut body 1 is less than or equal to the diameter of the abutting section 2, so that when the abutting section 2 abuts the working surface, the contact area between the nut and the working surface is enlarged compared to when the nut body 1 abuts the working surface, thereby reducing the acting pressure intensity of the nut on the working surface when the sleeve is tightened, and reducing the vibration generated on the working surface due to impact, thereby ensuring the stability and service life of the connection between the nut and the working surface.

[0030] In order to ensure the rigidity of the nut as a whole and avoid damage to the nut when being tightened, in some embodiments, the nut body 1, the transition section 3 and the abutting section 2 are integrally formed, which can avoid the nut body 1 from being broken under the action of torsional force and causing the nut to fail and affect the fixation between the nut and the working surface when the sleeve is sleeved on the nut body 1 and the nut is tightened by rotating the sleeve.

[0031] In some embodiments, the nut is a cap-shaped nut, and the threaded hole 10 penetrates through the transition section 3 and the abutting section 2, so that the bolt or screw does not pass through the nut body 1, thereby protecting the tail of the bolt or screw from being damaged under the influence of external force and affecting subsequent disassembly, and achieving the purpose of prolonging the service life of the nut and the bolt to be fixed.

[0032] In other embodiments, the threaded hole 10 penetrates through the nut body 1, the transition section 3 and the abutting section 2, so that the bolt or screw passes through the nut body 1 to be tightened on the working surface under the action of the sleeve, thereby ensuring the effectiveness of the connection between the working surface and the connected structure by the nut. At this time, the bolt cooperating with the nut can also be connected to other structural members to achieve the connection of multiple structures by a single bolt. In addition, when the bolt passes through the surface of other structural members, the nut of the present application can also be used for fastening.

[0033] Further, in actual application, the threaded hole 10 can be a forward threaded hole or a reverse threaded hole according to actual conditions or different connection structures, and when the nut is used to fasten and connect the working surface and the connected structure, the sleeve is used and the rotation direction is rotated according to the actual conditions to make the operation more convenient, so as to achieve the tightening or loosening of the nut.

[0034] In some embodiments, the cross section of the nut body is a regular hexagon, that is, the central angle of the outer arc surface is 60 degrees, and the six sides of the nut body 1 are composed of a specific circular arc curve. The sleeve can be fastened within a 30-degree angle along the center line of the nut body 1, so that the sleeve can realize different angle transmission and conversion between the sleeve axis and the nut body 1 axis, greatly improving the flexibility and adaptability during fastening.

[0035] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A nut, characterized in that Comprise: a nut body comprising a central threaded hole and a plurality of continuous and intersecting outer arc surfaces on the outer periphery; an abutting section connected to one end of the nut body and abutting to a working surface on the other end.

2. The nut of claim 1, wherein Further comprise: a transition section arranged between the nut body and the abutting section.

3. The nut of claim 2, wherein: the nut body, the transition section and the abutting section are coaxially arranged.

4. The nut of claim 3, wherein Further comprise the diameter of the nut body is greater than the diameter of the transition section and less than or equal to the diameter of the abutting section.

5. The nut of claim 2, wherein: the nut body, the transition section and the abutting section are integrally formed.

6. The nut of claim 2, wherein: the threaded hole penetrates the transition section and the abutting section.

7. The nut of claim 2, wherein: the threaded hole penetrates the nut body, the transition section and the abutting section.

8. The nut of claim 1, wherein: the threaded hole is a right-handed threaded hole or a left-handed threaded hole.

9. The nut of claim 1, wherein: the central angle of the arc of the outer arc surface is 60 degrees.

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