CN201711916U - Structural Improvement of the Sleeve - Google Patents

Abstract

An improved structure of socket is disclosed, wherein a socket end for connecting with a wrench tool is formed at one end of the socket, and a polygonal structure is formed by several inner walls at the inner edge of the socket end at the other end for sleeving a clamping nut. The sleeve holding end has two adjacent inner wall surfaces with one notch for positioning and one small diameter opening, and the notches are formed in the neck walls to increase the fastening force of the clamping nut and raise the anti-slip effect.

Description

Structural Improvement of the Sleeve

technical field

The utility model relates to the field of socket tools, in particular to an improved structure of a socket which is used for pulling nuts and other locking parts and has a better anti-slip effect. the

Background technique

With the development of industrial technology, all kinds of mechanical appliances will use bolts, nuts and other locking parts. Since bolts, nuts and other parts are all made of metal steel materials, using a sleeve such as a sleeve as shown in Figure 1 When the moving tool is turned, it is inevitable that the sleeve and the nut are not tightly held and the degree of bite is not enough, resulting in slippage, which will cause the four-corner, hexagonal or multi-corner head of the locking part to collapse. In order to improve the above-mentioned slipping situation, there are improvement patents shown in patent cases such as my country's Patent No. M265161 anti-slip sleeve structure and I316011 screw-fixing tool tooth structure. the

The structural feature of the above-mentioned prior art product is that the polygonal inner wall surface of the locking part is sheathed by a wrench tool, and a groove structure is formed along the horizontal direction of the axis to increase the occlusal friction force. However, the products in the prior art form densely distributed grooves on the inner wall surface of the wrenching tool to hold the locking element, which relatively reduces the contact area with the locking element. The taper of the draft, in this case, does not provide a better anti-slip effect, so there is a need for improvement. the

In view of this, the inventor has done in-depth research on the structure of the sleeve, and invented an improved structure of the sleeve, from which this case arose. the

Utility model content

The purpose of this utility model is to provide a structural improvement of the sleeve. When the sleeve is used to pull the nut for locking operation, without reducing the clamping contact area between the sleeve and the nut, the force of pulling and clamping can be increased. Tightness and occlusal tightness improve the efficiency and quality of pulling. the

In order to achieve the above object, the technical scheme of the utility model is as follows:

The improvement of the structure of the sleeve, which consists of a sleeve, the sleeve has a sleeve end for assembling the wrench tool, and a sleeve end for fitting and clamping the nut, the sleeve end The inner edge is composed of a number of inner walls to form a polygonal structure, and a groove for positioning is formed at the corners of two adjacent inner walls. It is characterized in that: 

The openings of each of the grooves are tapered inwards to form a small-diameter shape, and then opposite neck walls are formed on both sides, and several gaps are formed on each of the neck walls. the

Each of the notches can be recessed to form a V-shaped structure with double slopes.

Each of the notches can be concaved to form an arc-shaped structure. the

Each of the notches can be recessed to form a square structure. the

Each of the notches can be recessed to form a single-slope structure. the

After adopting the above structure, the utility model forms a notch structure at the neck wall at the corner position of the inner wall of the sleeve, which can not only maintain a large area in contact with the nut, but also improve the fastening force of the clamping nut. And anti-skid effect, improve the efficiency and quality of the sleeve to pull the nut. the

Below in conjunction with accompanying drawing, the utility model is described in further detail. the

Description of drawings

Figure 1 is a plan view of an existing product;

Fig. 2 is the three-dimensional schematic view of the utility model;

Fig. 3 is the top view of the utility model;

Fig. 3 A is the top view of another embodiment of the utility model;

Fig. 4 is the sectional schematic view of the utility model;

Fig. 5 is the cross-sectional schematic diagram of the structure of the second notch embodiment of the utility model;

Fig. 6 is the sectional schematic diagram of the structure of the third notch embodiment of the utility model;

Fig. 7 is a schematic cross-sectional view of the structure of the fourth notch embodiment of the present invention. the

Label description

Sleeve 10 Socket end 11

Sleeve end 12 inner wall surface 121, 121a

groove 13 neck wall 14

Gap 141

Detailed ways

See also shown in the 2nd to Fig. 4, the structural improvement of the sleeve of the present utility model is to improve the structure of the sleeve 10 for turning the sleeve nut (not shown in the figure), and the sleeve 10 is generally connected with The sleeve object of the drive head (not shown in the figure) set at the front end of the wrench tool has a socket end 11 for the wrench tool to be inserted into the inner edge of one end, and a polygonal shape is formed on the inner edge of the other end. Shaped sleeve end 12. The sleeve end 12 is composed of several inner wall surfaces 121, 121a to form a polygonal structure such as a quadrangular, hexagonal or dodecagonal shape, which is used to fit and hold a corresponding polygonal nut. A groove 13 for positioning is formed at the corner of , 121a. Each of the grooves 13 is arc-shaped, and its opening tapers inwards to form a small-diameter shape, and then forms opposite neck walls 14 on both sides, and each neck wall 14 is formed with a number of gaps 141, each of which 141 can be recessed inward to form a V-shaped configuration with double slopes (as shown in Figures 2 to 4), or as shown in Figure 5, each of the gaps 141 can be recessed inward to form a single slope structure, or as shown in Figure 5 As shown in FIG. 6 , each of the notches 141 can be recessed inward to form an arc-shaped structure, or as shown in FIG. 7 , each of the notches 141 can also be recessed inward to form a square structure. the

Accordingly, with the above-mentioned component composition, the notches 141 are used to form the neck wall 14 at the corner of the inner wall surface 121, when the sleeve 10 sleeves the nut, it can not only maintain contact with the nut The large-area part can improve the fastening force and anti-skid effect of the clamping nut, and improve the efficiency and quality of the sleeve to pull the nut. the

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the implementation scope of the present utility model. All changes and modifications made according to the design points of the present utility model fall within its protection scope. the

Claims (5)

1. the structural improvement of sleeve, this sleeve has a socket end in order to the winding pulling tool, and one hold end in order to the cover of fit, clamping nut, this cover is held the some internal faces formations of cause cerioid structure in the end, and, it is characterized in that respectively at the groove that the corner place of two adjacent internal faces forms a location usefulness:

The inside convergent of the opening of each groove is small-bore form, and then forms relative neck wall in two sides, simultaneously respectively on this neck wall and form some breach.

2. the structural improvement of sleeve as claimed in claim 1 is characterized in that: but described each breach indent forms bibeveled V font structure.

3. the structural improvement of sleeve as claimed in claim 1 is characterized in that: but described each breach concave shaped structure in the arc-shaped.

4. the structural improvement of sleeve as claimed in claim 1 is characterized in that: but described each breach concave shaped squarely structure.

5. the structural improvement of sleeve as claimed in claim 1 is characterized in that: but described each breach indent forms monocline face structure.

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