CN219366543U

CN219366543U - Nut and bolt

Info

Publication number: CN219366543U
Application number: CN202320311017.3U
Authority: CN
Inventors: 杜晓东; 王毅; 李雷保; 许惠源; 王健蘅; 肖成成; 龚秋磊
Original assignee: Chongqing Iron And Steel Energy And Environmental Protection Co ltd; Chongqing Iron and Steel Co Ltd
Current assignee: Chongqing Iron And Steel Energy And Environmental Protection Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-18
Anticipated expiration: 2033-02-24

Abstract

The utility model provides a nut and a bolt, which belong to the field of mechanical fixing devices, and comprise a nut body, wherein a nut hole is formed in the nut body, a working surface group matched with a nut tightening tool is arranged on the peripheral surface of the nut body, and the working surface group comprises working surfaces arranged along the hole direction of the nut hole; the working face groups are at least two, the two working face groups are sequentially arranged along the nut hole direction, and an included angle exists between projections of the working faces of the two working face groups on the nut hole direction. Compared with the existing nut, when the nut is operated in a narrow space, the angle of the nut tightening tool for the nut to operate is increased, when the nut tightening tool is inconvenient to put into the working face of one working face group of the nut, the working face of the other working face group can be used for operating the nut, and the time required for tightening and disassembling the nut is reduced.

Description

Nut and bolt

Technical Field

The utility model belongs to the field of mechanical fixing devices, and particularly relates to a nut and a bolt.

Background

The nut is a part which is screwed together with a bolt or a screw rod to play a role in fastening, is applied to all production, manufacturing and mechanical fields, and achieves the role in fastening connection by transmitting motion or power through cooperation with the screw rod.

When the operation space of a common nut is relatively narrow, the condition that the nut cannot be screwed or the nut cannot be dismounted often occurs, and an operation procedure is needed to be added at the moment, so that the nut can be screwed or dismounted smoothly, and the screwing and dismounting work of the nut is time-consuming and laborious when the operation space is relatively narrow. In view of this, how to still ensure the convenience of nut operation in a small space is a problem to be solved.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a nut and a bolt for solving the problems of inconvenient fastening and dismounting of the nut in a narrow space in the prior art.

To achieve the above and other related objects, the present utility model provides a nut, including a nut body, a nut hole being provided on the nut body, a working surface group for cooperating with a nut tightening tool being provided on an outer circumferential surface of the nut body, the working surface group including a working surface disposed along a hole direction of the nut hole; the working face groups are at least two, the two working face groups are sequentially arranged along the nut hole direction, and an included angle exists between projections of the working faces of the two working face groups on the nut hole direction.

Further, the working surface group at least comprises two working surfaces, and the two working surfaces of the working surface group are oppositely arranged and parallel to each other.

Further, the projection of the working face group on the nut hole is regular polygon, and the number of sides of the regular polygon is even.

Further, the projection of the working surface group on the nut hole is regular hexagon.

Further, the included angle between the projections of the working faces of the two working face groups on the upward direction of the nut hole is 30 degrees.

Further, the dimension of the working surface in the hole upward direction of the nut hole is larger than or equal to the thickness of the clamping part of the nut tightening tool.

The utility model also provides a bolt, which comprises a screw rod and the nut, wherein the nut is fixedly connected to the screw rod.

As described above, the nut and the bolt have the following beneficial effects:

through setting up two working face groups, and there is the contained angle between the ascending projection of nut hole of working face of two working face groups, compare in current nut, when operating in narrow and small space, increased the nut elasticity instrument to the operable angle of nut, when the inconvenient working face of putting into a nut working face group of nut elasticity instrument, can use the working face of other working face groups to operate to the nut, solved the nut elasticity instrument and be difficult for screwing up and dismantle the problem of nut in narrow and small space, reduced the nut and screwed up and dismantle required time, improved the work efficiency when screwing up and dismantling the nut.

Drawings

Fig. 1 is a schematic view of a nut according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a nut according to an embodiment of the utility model.

Fig. 3 is a schematic structural view of a bolt according to an embodiment of the present utility model.

Part number description: 1. a working face set; 2. a nut hole; 3. a working surface; 4. and (3) a screw.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to fig. 1 to 3. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

To describe the present utility model in detail, a nut and bolt of the present utility model will be described in detail as follows:

fig. 1 is a schematic view of one of the nuts according to the embodiment of the present utility model, and fig. 2 is a schematic view of the other nut according to the embodiment of the present utility model, which is shown in fig. 1 and 2. The utility model provides a nut, which comprises a nut body, wherein a nut hole 2 is formed in the nut body, a working surface group 1 for being matched with a nut tightening tool is arranged on the peripheral surface of the nut body, and the working surface group 1 comprises a working surface 3 arranged along the hole direction of the nut hole 2; the number of the working face groups 1 is at least two, the two working face groups 1 are sequentially arranged along the hole direction of the nut hole 2, and an included angle exists between projections of the working faces 3 of the two working face groups 1 on the hole direction of the nut hole 2. The nut tightening tool can be an adjustable spanner, a fork spanner, a socket spanner, other specially arranged spanner and the like. Through setting up two working face groups 1, and there is the contained angle between the ascending projection in nut hole 2 hole of working face 3 of two working face groups 1, compare in current nut, when operating in narrow and small space, increased the nut tightening tool to the operable angle of nut, when the inconvenient working face 3 of putting into a nut working face group 1 of nut tightening tool, can use the working face 3 of other working face groups 1 to operate the nut, solved the nut tightening tool and be difficult for screwing out and screw in the problem of nut in narrow and small space, reduced the time that screw up and dismantle the nut needs, improved the work efficiency when screwing up and dismantling the nut.

Specifically, the dimension of the working surface in the hole upward direction of the nut hole is greater than or equal to the thickness of the clamping part of the nut tightening tool. When the nut tightening tool is clamped with the nut, the upward dimension of the clamping part in the hole of the nut is the thickness of the clamping part of the nut tightening tool. The larger the contact area between the working surface and the clamping part of the nut tightening tool is, the larger the stress surface of the working surface is, the more uniform the stress is, and the nut tightening tool can conveniently operate the nut. When the ascending size of hole at the nut hole is greater than or equal to the thickness of nut elasticity instrument joint part, the working face can have great area contact with nut elasticity instrument joint part, guarantees the convenience when screwing up and dismantling the nut, prevents to appear the nut elasticity instrument and be difficult to the joint nut and carry out the condition of operation at the operation in-process.

The working surface group 1 at least comprises two working surfaces 3, and the two working surfaces 3 of the working surface group 1 are oppositely arranged and parallel to each other. In this embodiment, the two working surfaces 3 on the same working surface set 1 are oppositely arranged and parallel to each other, so that an adjustable wrench and a fork wrench can be conveniently operated, in the production process of a part, due to the influence of a demoulding angle, the parallelism is understood to be approximate parallelism, in other embodiments, the two working surfaces 3 of the same working surface set 1 can also be intersected, at the moment, a socket wrench or a wrench with special arrangement can be used for operating a nut, and the arrangement of the working surfaces 3 on the same working surface set 1 can be adjusted according to actual conditions.

The projection of the working face group 1 on the hole of the nut hole 2 is a regular polygon, and the number of edges of the regular polygon is an even number. The upward projection of the working face group 1 in the hole of the nut hole 2 is regular polygon, so that the corresponding two working faces 3 in the working face group 1 are oppositely arranged and mutually parallel, and the operation treatment of the adjustable spanner and the fork spanner is facilitated. In this embodiment, the projection of the working surface set 1 on the hole of the nut hole 2 is regular hexagon, the cross section of the nut body is regular hexagon, in other embodiments, the projection of the working surface set 1 on the hole of the nut hole 2 may be regular quadrangle or regular octagon, and the projection shape of the working surface set 1 on the hole of the nut hole 2 may be adjusted according to the actual situation. In actual work, as the number of regular polygon edges projected upwards by the working face group 1 in the hole of the nut hole 2 increases, when the size of the working face group 1 is unchanged, the area where the working face 3 is stressed and abutted with the nut tightening tool is reduced, so that the working face group is easier to slip during operation.

In this embodiment, the projection shape of each working face group 1 of the nut on the hole of the nut hole 2 is regular hexagon, and the hexagon has the same size, so that an operator does not need to frequently adjust when using the nut tightening tool, thereby adapting to the distance between the working faces 3 of different working face groups 1, saving the time of adjusting the tool, and improving the efficiency of tightening and dismantling the nut. In other embodiments, the projection shape of the working surface set 1 of the nut on the hole of the nut hole 2 can be square, regular hexagon or regular octagon, and the combination of the working surface sets 1 with different projection shapes can be adjusted according to practical situations. In other embodiments, the size of the projection shape of the working surface set 1 of the nut in the hole direction of the nut hole 2 can be different, and the size of the projection shape can be adjusted according to practical situations.

In this embodiment, the nut is integrally formed. The nut adopts integrated into one piece's mode to produce, and in the use, the atress of nut is more even and stable, can guarantee the stability of nut in the use.

In this embodiment, the number of the working surface groups 1 of the nuts is two, and in other embodiments, the number of the working surface groups 1 of the nuts may be multiple, and the number of the working surfaces 3 of the nuts may be adjusted according to actual situations. In this embodiment, the projection shape of the working surface group 1 of the nut in the upward direction of the hole of the nut hole 2 is a regular hexagon, the included angle between the projections of the working surfaces 3 of the two working surface groups 1 in the upward direction of the hole of the nut hole 2 is 30 °, and after the two regular hexagons which are mutually overlapped rotate clockwise or anticlockwise for 60 °, the two regular hexagons are overlapped again, and the included angle is the median value of the rotation angle of 60 °. In some embodiments, the projection shape of the working surface group 1 of the nut in the hole direction of the nut hole 2 may be square, the included angle between the projections of the working surfaces 3 of the two working surface groups 1 in the hole direction of the nut hole 2 may be 45 °, in other embodiments, the projection shape of the working surface group 1 of the nut in the hole direction of the nut hole 2 may be octagon, the included angle between the projections of the working surfaces 3 of the two working surface groups 1 in the hole direction of the nut hole 2 may be 22.5 °, and the included angle between the projections of the working surfaces 3 of the two working surface groups 1 in the hole direction of the nut hole 2 may be adjusted according to practical situations.

As shown in fig. 3, the present utility model provides a bolt, which includes a screw 4 and a nut as described above, and the nut is fixedly connected to the screw 4. In this embodiment, a nut is fixed on the screw 4, and the nut is fixed at one end of the screw 4, in other embodiments, the number of nuts fixed on the screw 4 may be two, and the number and distribution positions of the nuts on the screw 4 may be adjusted according to practical situations.

In summary, through setting up two working face groups 1, and there is the contained angle between the ascending projection of nut hole 2 hole in working face 3 of two working face groups 1, compare in current nut, when operating in narrow and small space, increased the nut tightening tool and to the operable angle of nut, when the inconvenient working face 3 of putting into nut one working face group 1 of nut tightening tool, can use working face 3 of other working face groups 1 to operate the nut, solved the nut tightening tool and be difficult for screwing up and dismantling the problem of nut in narrow and small space, reduced the time that screw up and dismantle the nut required, work efficiency when screwing up and dismantling the nut has been improved.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A nut, characterized in that: the nut comprises a nut body, wherein a nut hole is formed in the nut body, a working surface group matched with a nut tightening tool is arranged on the peripheral surface of the nut body, and the working surface group comprises working surfaces arranged along the hole direction of the nut hole; the working face groups are at least two, the two working face groups are sequentially arranged along the nut hole direction, and an included angle exists between projections of the working faces of the two working face groups on the nut hole direction.

2. A nut as defined in claim 1, characterized in that: the working surface group at least comprises two working surfaces, and the two working surfaces of the working surface group are oppositely arranged and parallel to each other.

3. A nut as defined in claim 1, characterized in that: the projection of the working face group on the nut hole is regular polygon, and the number of edges of the regular polygon is even.

4. A nut as defined in claim 3, characterized in that: the projection of the working surface group on the nut hole is regular hexagon.

5. A nut as defined in claim 1, characterized in that: the included angle between the projections of the working faces of the two working face groups on the upward direction of the nut hole is 30 degrees.

6. A nut as defined in claim 1, characterized in that: the dimension of the working surface in the hole upward direction of the nut hole is larger than or equal to the thickness of the clamping part of the nut tightening tool.

7. A bolt, characterized in that: comprising a threaded rod and a nut according to any one of claims 1 to 6, said nut being fixedly connected to said threaded rod.