CN201848808U - Bush with hexagonal appearance and pentagonal interior - Google Patents

Abstract

The utility model relates to a hexagonal and internal pentagonal sleeve, which comprises a sleeve body (3). The tail end of the sleeve body (3) is provided with a square hole. The ring (1) is in the shape of a hexagonal quincunx, and its center (2) is in a pentagonal columnar structure. The utility model is used to install and disassemble special bolts with a hexagonal shape and a pentagonal shape inside, so that the special bolts can smoothly achieve the best installation and disassembly effects.

Description

A hexagonal and internal pentagonal sleeve

technical field

The utility model relates to the field of mechanical equipment tools, in particular to a pentagonal sleeve with a hexagonal shape and a pentagonal shape, which can be used for installing and dismounting special bolts with a hexagonal shape and an internal pentagonal shape.

Background technique

In the traditional mechanical equipment industry, large and small bolts in fasteners are the most common and commonly used standard parts, especially the outer hexagonal bolts, which are used in a very large amount and have a wide range of applications. However, in today's ever-changing mechanical equipment, ordinary fastener bolts can no longer meet the needs of many occasions, especially in some special equipment occasions, the role of ordinary fastener bolts is greatly restricted. Especially for ordinary hexagonal bolts, through ordinary wrenches, after many times of disassembly, the outer hexagon will be easily worn, so that the hexagonal bolts become rounded bolts, and the rounded bolts simply lose the quality of the fasteners. The effect, not only the bolts are scrapped, but also some equipment structures cannot be installed and disassembled, which brings great inconvenience to the actual work, and sometimes the problem can only be solved after the bolts or equipment structures are destroyed, resulting in the product cost of the unit using the bolts. The inconvenience of increasing and using the unit for maintenance.

Contents of the invention

The technical problem to be solved by the utility model is to provide a hexagonal inner pentagonal sleeve for installing and dismounting hexagonal inner pentagonal bolts.

The technical solution adopted by the utility model to solve the technical problems is: provide a hexagonal and internal pentagonal sleeve, including a sleeve body, the tail end of the sleeve body is provided with a square hole, and the sleeve body The inner ring at the top is in the shape of a hexagonal quincunx, and its center is in a pentagonal columnar structure.

The pentagonal columnar structure is a regular pentagonal columnar structure.

Beneficial effect

Due to the adoption of the above-mentioned technical scheme, the utility model has the following advantages and positive effects compared with the prior art: the utility model makes full use of the hexagonal quincunx-shaped inner ring formed at the top and the pentagonal columnar structure in the center, so that the disassembled shape is hexagonal The effect of special bolts with inner shape and pentagonal shape is greatly increased. Using the utility model to install and disassemble special bolts with hexagonal shape and inner shape with pentagonal shape can make the special bolts achieve the best installation and removal effect smoothly.

Description of drawings

Fig. 1 is the end view of the utility model;

Fig. 2 is the outline drawing of the utility model;

Fig. 3 is the rear view of the utility model.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Example 1

As shown in Figures 1, 2 and 3, a hexagonal and internal pentagonal sleeve includes a sleeve body 3, the rear end of the sleeve body 3 is provided with a square hole 4, and the top end of the sleeve body 3 is The inner ring 1 is in the shape of a hexagonal quincunx, and its center 2 is in a pentagonal columnar structure. Wherein, the pentagonal columnar structure is a regular pentagonal columnar structure. The sleeve is mainly for a special bolt with a hexagonal shape and a pentagonal shape inside. The bolt head of the special bolt is hexagonal, and there is a pentagonal groove in the center of the end face.

Under normal circumstances, the utility model is used in the same way as the common sleeve, and the top of the sleeve body is aligned with the corresponding position of the special bolt, that is to say, the hexagonal quincunx shape of the inner ring of the top of the sleeve body is aligned with the outer surface of the special bolt head. The hexagons correspond to each other, and the pentagonal columnar structure at the center of the top of the sleeve corresponds to the pentagonal groove on the end face of the bolt head, so that the bolt head enters the sleeve, and then inserts the handle of the sleeve into the square hole at the end of the sleeve. It is very convenient to disassemble the special bolts by turning left or right, so that the special bolts are not easy to be damaged, and it is not suitable to slip when the outer hexagon and inner pentagon of the special bolt are restrained by each other, so that they can play their greatest role.

It is not difficult to find that the utility model is used to install and disassemble the special bolts of outer hexagon and inner pentagon, so that the working efficiency is improved, the function of the special bolts is brought into play, which brings great convenience to mechanical equipment and saves bolt materials, making Special bolts are used for best results.

Claims (2)

1. shape five-cornuted sleeve in the profile hexagonal, comprise sleeve body (3), described sleeve body (3) tail end is provided with square opening (4), it is characterized in that, described sleeve body (3) top inner ring (1) is a hexagonal plum blossom shape, and its center (2) are the pentagon column structure.

2. shape five-cornuted sleeve in the profile hexagonal according to claim 1 is characterized in that described pentagon column structure is positive pentagon column structure.

Images