Nut

Abstract

The invention relates to the technical field of mechanical structure connecting structures, in particular to a nut which comprises a nut body, a transition section and an abutting section. The nut body is arranged to be a sphere-like body and comprises a threaded hole, the nut body is sleeved with the sleeve matched with the outside, the nut body is driven to rotate, and tightening and fixing of the nut are achieved. The transition section is installed at one end of the nut body, and the situation that when the nut body is sleeved with the sleeve, the outer wall of the nut body 1 is sleeved with the sleeve, interference occurs on the working face, and the sleeve cannot drive the nut to rotate due to position limitation is avoided. The abutting section is connected to the transition section, abuts against the working face and is used for increasing the contact face of the nut and the working face, 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 on the working face is reduced, and the bearing capacity of the nut is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical structure connection structures, and in particular to a nut. Background Art

[0002] As a common mechanical fastener, a nut is a metal accessory with internal threads that is used to cooperate with bolts to connect and fix parts.

[0003] The existing nuts are mostly hexagonal in shape, and the side faces of the nuts are vertical surfaces. When tightening with the sleeve, the axes of the two need to coincide to achieve tightening. However, when fixing in a narrow space, it is difficult to achieve locking with the sleeve due to space limitations. For example, the spherical nut mentioned in CN201401422Y has a small contact position between its edge and the working surface, and the locking effect is poor. Summary of the invention

[0004] The present invention is made to solve the above technical problems, and its purpose is to provide a nut with continuous and intersecting outer arc surfaces on the outside, so that a sleeve can be used to tighten and lock the nut in a narrow space.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a nut, including a nut body, which is configured as a spherical body and includes a central threaded hole; a transition section, which is arranged at one end of the nut body; and an abutment section, which is connected to the transition section and abuts against a working surface.

[0006] Preferably, the nut body, the transition section and the abutment section are coaxially arranged.

[0007] Preferably, the cross section of the abutting section is circular, and the diameter of the abutting section is larger than the diameter of the nut body.

[0008] Preferably, the diameter of the transition section is smaller than the diameter of the nut body.

[0009] Preferably, the threaded hole penetrates the transition section and the abutment section.

[0010] Preferably, the threaded hole penetrates the nut body, the transition section and the abutment section.

[0011] Preferably, the threaded hole is a forward threaded hole or a reverse threaded hole.

[0012] Preferably, the heights of the transition section and the abutment section are smaller than the height of the nut body.

[0013] Preferably, the nut body, the transition section and the abutment section are integrally formed.

[0014] Preferably, the nut body, the transition section and the abutment section are connected by welding.

[0015] According to the above description and practice, the nut described in the present invention includes a nut body, a transition section and an abutment section. The nut body is configured as a spherical body, including a threaded hole, and an externally matched sleeve is sleeved on the nut body to drive the nut body to rotate, thereby tightening and fixing the nut. The transition section is installed at one end of the nut body to prevent the sleeve from interfering with the working surface when the sleeve is sleeved on the nut body and the sleeve is sleeved on the outer wall of the nut body 1, resulting in the sleeve being unable to drive the nut to rotate due to position restrictions. The abutment section is connected to the transition section and abuts against the working surface, and is used to increase the contact surface between the nut and the working surface. On the one hand, it improves the friction between the working surface and the nut and the shock resistance of the entire nut, so as to increase the stability of the connection between the nut and the working surface; on the other hand, it reduces the pressure directly exerted by the nut on the working surface, thereby improving the bearing capacity of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of a nut involved in one embodiment of the present invention.

[0017] Figure 2 It is a cross-sectional view of a nut involved in one embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of a nut involved in one embodiment of the present invention.

[0019] Figure 4 It is a structural schematic diagram of a nut from another perspective involved in an embodiment of the present invention.

[0020] The reference numerals in the figure are:

[0021] 1. Nut body 10, threaded hole 11, outer arc surface

[0022] 2. Abutment section 3. Transition section DETAILED DESCRIPTION

[0023] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0024] In addition, the accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, so their repeated description will be omitted. It should be noted that in the present invention, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", etc. are only used as marks, not to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As a common mechanical fastener, a nut is a metal accessory with internal threads, which is used to cooperate with bolts to achieve the connection and fixation between two parts. The existing nuts are mostly hexagonal in shape, and the side of the nut is a vertical surface. When tightening with the sleeve, the axes of the two need to coincide to achieve tightening. However, when fixing in a small space, it is difficult to use the sleeve vertically to achieve coaxial locking with the nut. In addition, the fastening method is single. Due to space limitations, manual tapping and hollow hydraulic wrenches are mainly used as fastening methods, which are not only time-consuming and labor-intensive, but also have low operating efficiency.

[0027] The present invention discloses a nut, please refer to Figures 1 to 4The nut includes a nut body 1, a transition section and an abutment section 2. The nut body 1 is configured as a spherical body, including a threaded hole 10 in the center. The externally matched sleeve is sleeved on the nut body 1 to drive the nut body 1 to rotate, thereby tightening and fixing the nut. The transition section is disposed at one end of the nut body 1 to prevent the sleeve from interfering with the working surface when the sleeve is sleeved on the nut body 1 and the sleeve is sleeved on the outer wall of the nut body 11, resulting in the sleeve being unable to drive the nut to rotate due to position restrictions. The abutment section 2 is connected to the transition section and abuts against the working surface to increase the contact surface between the nut and the working surface. On the one hand, it improves the friction between the working surface and the nut and the shock resistance of the entire nut, so as to increase the stability of the connection between the nut and the working surface; on the other hand, it reduces the pressure exerted directly on the working surface by the nut, thereby improving the bearing capacity of the nut.

[0028] Specifically, the nut body 1 is set to be a spherical body, that is, the outer wall of the nut body 1 has a certain continuous arc surface, and at least one edge 12 is set on the adjacent arc surface. When the nut is tightened or loosened, the edge in the sleeve is clamped with the edge 12, and the entire nut is driven to rotate through the active sleeve. Further, since the outer wall of the nut body is provided with an edge 12, when the nut is located in a narrow space, the external sleeve can be clamped with the edge 12 at any angle, and can drive the nut body 1 to rotate, so as to achieve the tightening and fixing of the nut. Specifically, when the sleeve is clamped with the edge 12, the clamping angle between the sleeve and the nut body 1 can be 25 degrees, 30 degrees, 35 degrees, 40 degrees, etc. When the nut is located in a narrow space, when the sleeve is clamped on the nut body 1 at a certain angle, the nut can still be rotated by rotating the sleeve to fix the nut on the working surface.

[0029] It can be understood that in some embodiments, the nut body 1, the transition section 3 and the abutment section 2 are coaxially arranged to ensure that when the sleeve is used to tighten or loosen the nut, the sleeve is sleeved on the nut body 1 to drive the transition section 3 and the abutment section 2 to rotate together, so that no matter in which direction the nut is subjected to the force of the sleeve, it can be rotated under the action of the sleeve to complete the tightening and loosening of the nut.

[0030] In some embodiments, the cross section of the abutment section 2 is circular, which increases the contact area between the nut body 1 and the working surface, and on the one hand, improves the friction between the working surface and the nut and the shock resistance of the entire nut, so as to increase the stability of the connection between the nut and the working surface. The diameter of the abutment section 2 is larger than the diameter of the nut body 1, so that when the abutment section 2 abuts against the working surface, the contact area between the nut and the working surface is enlarged compared to the abutment of the nut body 1 itself against the working surface. When the sleeve tightens the nut, the pressure exerted by the nut on the working surface is increased, and the vibration caused by the impact on the working surface is reduced, thereby ensuring the stability and service life of the connection between the nut and the working surface.

[0031] Furthermore, in some embodiments, the diameter of the transition section 3 is smaller than the diameter of the nut body 1. On the one hand, this will prevent the sleeve from being stuck in the transition section 3 when the nut body 1 is tightened or loosened by the sleeve. On the other hand, it will reduce the force on the abutment section 2 under the direct action of the nut body 1, thereby preventing the abutment section 2 from being damaged when subjected to a large force, thereby affecting the connection between the working surface and the nut.

[0032] In order to ensure the overall rigidity of the nut and avoid damage to the nut when tightening, in some embodiments, the nut body 1, the transition section 3 and the abutment section 2 are integrally formed to avoid the nut body 1 being broken from the transition section 3 and / or the abutment section 2 under the action of torsional force when the sleeve is sleeved on the nut body 1 and the nut is tightened by twisting the sleeve, thereby causing the nut to fail and affecting the fixation between the nut and the working surface.

[0033] In some embodiments, the nut is a cap nut, and the threaded hole 10 penetrates the transition section 3 and the abutment section 2. At this time, the bolt or screw will not pass through the nut body 1 to protect the tail of the bolt or screw from being damaged under the influence of external force, affecting subsequent disassembly, thereby increasing the service life of the nut and the bolt it is fixed with.

[0034] In other embodiments, the threaded hole 10 penetrates the nut body 1, the transition section 3 and the abutment section 2. At this time, the bolt or screw passes through the nut body 1 to tighten the bolt or screw on the working surface under the action of the sleeve to ensure the effectiveness of the connection between the working surface and the connected structure through the nut. In addition, the bolt matched with the nut can also continue to connect other structural parts to achieve the connection of multiple structures through a single bolt. In addition, after the bolt passes through the surface of other structural parts, it can also be tightened using the nut of this article.

[0035] Furthermore, the nut body 1, the transition section 3 and the abutment section 2 are welded together. When making the nut, only the mold can be customized to produce the nut body 1, and after completion, the suitable transition section 3 and abutment section 2 can be selected for welding, thereby reducing the trial and error cost of customizing the nut mold.

[0036] It can be understood that in actual applications, the threaded hole 10 can be a forward threaded hole or a reverse threaded hole according to actual conditions or different connection structures. When using the nut to fasten the working surface and the connection structure, the sleeve is used and rotated in a more convenient direction according to actual conditions to achieve tightening or loosening of the nut.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A nut, characterized in that: include: The nut body is configured as a spherical shape and includes a threaded hole in the center; A transition section, disposed at one end of the nut body; The abutment section is connected to the transition section and abuts against the working surface.

2. The nut according to claim 1, characterized in that The nut body, the transition section and the abutment section are coaxially arranged.

3. The nut according to claim 2, characterized in that The cross section of the abutting section is circular, and the diameter of the abutting section is greater than the diameter of the nut body.

4. The nut according to claim 3, characterized in that The diameter of the transition section is smaller than the diameter of the nut body.

5. The nut according to claim 1, characterized in that: The threaded hole penetrates the transition section and the abutment section.

6. The nut according to claim 1, characterized in that: The threaded hole penetrates the nut body, the transition section and the abutment section.

7. The nut according to claim 1, characterized in that: The threaded hole is a forward threaded hole or a reverse threaded hole.

8. The nut according to claim 1, characterized in that The heights of the transition section and the abutting section are smaller than the height of the nut body.

9. The nut according to claim 1, characterized in that: The nut body, the transition section and the abutment section are integrally formed.

10. The nut according to claim 1, characterized in that The nut body, the transition section and the abutment section are welded and connected.

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