CN204878248U - An extended hexagonal connection nut - Google Patents

Abstract

The utility model discloses an extension hexagonal coupling nut, including nut body and ring flange, the cross sectional shape of nut body is regular hexagon, the cross sectional shape of ring flange is circular, the ring flange is located the below of nut body, nut body and ring flange formula structure as an organic whole, nut body and ring flange center department are provided with coaxial with the screw hole in aperture, the upper end and the lower extreme of screw hole all are equipped with chamfer I, be equipped with the screw through-hole that is used for locking on the ring flange. The utility model discloses a thickening has been carried out the axial thickness of nut body to the screw thread helical pitch of screw hole has been lengthened, has improved the power of screwing up between nut and screw rod or the bolt, through set up 3 screw through-holes on the ring flange, has ensured that the nut can move along with mechanical equipment, and can not produce the pine and take off, compares with prior art, and the stable in structure of this kind of nut, and the locking pine takes off effectually, and the security performance is high.

Description

An extended hexagonal connection nut

【Technical field】

The utility model relates to the technical field of fasteners, in particular to the technical field of a hexagonal nut.

【Background technique】

Nut is a very common fastening connection part, which is widely used in the connection of various mechanical devices. However, in actual use, it is often difficult for the installer to determine whether the nuts have been tightened in place, so it is difficult to ensure that the bolts and nuts will not loosen automatically during long-term use. And in some cases, the loosening and falling off of nuts can cause serious accidents and cause major economic losses. Nut usually cooperates with bolt and screw rod, and the structure of existing nut comprises nut body, is provided with threaded hole in nut body, and threaded hole cooperates with the threaded connection end on the bolt or screw rod, in use, nut and bolt or Looseness is easy to occur between the screws, which affects the fastening effect. In the prior art, in the high-speed operation and the occasion of shock and vibration, the nut is very easy to loosen and slide relative to each other, causing damage to the equipment, and more likely to cause accidents. Therefore, it is an important technical issue that machinery manufacturers need to treat carefully to ensure that such nuts can run with the machine instructions without loosening, and to ensure the normal operation and safety of the machinery.

【Content of utility model】

The purpose of the utility model is to solve the problems in the prior art, and propose an extended hexagonal connecting nut, which can be applied to mechanical equipment subject to large vibration and impact, has a stable structure, good anti-loosening effect, and high safety performance.

In order to achieve the above object, the utility model proposes a lengthened hexagonal connection nut, including a nut body and a flange, the cross-sectional shape of the nut body is a regular hexagon, and the cross-sectional shape of the flange is circular. The flange is located below the nut body, and the nut body and the flange are of an integrated structure. A threaded hole with the same axis and the same diameter is arranged at the center of the nut body and the flange. The upper and lower ends of the threaded hole are both A chamfer I is provided, and a screw through hole for locking is provided on the flange.

Preferably, the upper surface of the flange is provided with rounded corners, and the upper surface of the nut body is provided with chamfered corners II.

Preferably, the number of the screw through holes is three, and the spacing between the three screw through holes is equal to each other.

Preferably, the cross-sectional area of the nut body is smaller than the cross-sectional area of the flange, and the axial height of the nut body is 1.5-2 times the radial width of the nut body.

Beneficial effects of the utility model: the utility model thickens the axial thickness of the nut body, thereby lengthening the thread lead of the threaded hole, improving the tightening force between the nut and the screw or the bolt, and through the flange There are 3 screw through holes on the plate, and the screws are used to lock the flange plate. The flange plate and the nut body are of an integrated structure, thus ensuring that the nut can move with the mechanical equipment without loosening, which is different from the existing Compared with advanced technology, this kind of nut has stable structure, good anti-loosening effect and high safety performance.

The features and advantages of the utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

【Description of drawings】

Fig. 1 is a top view structural diagram of a lengthened hexagonal connection nut of the utility model;

Fig. 2 is a front sectional view of a lengthened hexagonal connection nut of the present invention.

In the figure: 1-nut body, 2-threaded hole, 3-flange, 4-rounded corner, 5-chamfer I, 6-chamfer II, 7-screw through hole.

【Detailed ways】

Referring to Fig. 1 and Fig. 2, a kind of lengthened hexagonal connection nut of the utility model comprises a nut body 1 and a flange 3, the cross-sectional shape of the nut body 1 is a regular hexagon, and the cross-sectional shape of the flange 3 is Circular, the flange 3 is located below the nut body 1, the nut body 1 and the flange 3 are of an integrated structure, and the center of the nut body 1 and the flange 3 is provided with a threaded hole with the same axis and the same diameter 2. The upper and lower ends of the threaded hole 2 are provided with chamfers I5, the flange 3 is provided with screw holes 7 for locking, and the upper surface of the flange 2 is provided with rounded corners 4 , the upper surface of the nut body 1 is provided with a chamfer II6, the number of the screw through holes 7 is three, and the spacing between the three screw through holes 7 is equal in pairs, and the cross-sectional area of the nut body 1 is smaller than the The cross-sectional area of the blue plate 3 and the axial height of the nut body 1 are 1.5 to 2 times the radial width of the nut body 1 .

The working process of the utility model:

In the working process of a lengthened hexagonal connecting nut of the utility model, by setting the axial height of the nut body 1 to 1.5 times the radial width of the nut body 1, the thickness is greatly improved compared with the general nut, so the threaded hole 2 The thread lead has also been lengthened, and the thread length of the mating part of the screw or bolt has also been lengthened, which improves the tightening force between the nut and the screw or bolt, making it difficult for the nut to break out when it is subjected to general vibration or impact. loose. In addition, the flange 3 is provided with screw through holes 7 for locking. The number of screw through holes 7 is 3, and the 3 screw through holes form an equilateral triangle. During installation, when the nut is fastened to a certain When a component is on the mechanical equipment where it is located, three corresponding fixing holes are opened in advance on the base surface in contact with the flange surface 3, and screws are passed through the screw through holes 7 on the flange plate 3, and the screws are fixed In the three fixing holes on the base surface, this fixing method ensures that the nut can move together with the mechanical equipment without loosening. In addition, the upper surface of the flange 2 is provided with a chamfer 4, the upper and lower ends of the threaded hole 2 are provided with a chamfer I5, the upper surface of the nut body 1 is provided with a chamfer II6, and the setting of the round corner 4 makes There is a certain radian in the axial direction of the flange, which increases its load-bearing capacity. The setting of the chamfer can reduce the burrs on the surface and make the appearance more beautiful.

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any scheme after a simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (4)

1. one kind lengthens hexagon connecting nut, it is characterized in that: comprise nut body (1) and flange plate (3), the sectional shape of described nut body (1) is regular hexagon, the sectional shape of described flange plate (3) is circular, described flange plate (3) is positioned at the below of nut body (1), nut body (1) and flange plate (3) are integral type structure, described nut body (1) and flange plate (3) center are provided with coaxially with the tapped hole (2) in aperture, the top and bottom of described tapped hole (2) are equipped with chamfering I (5), described flange plate (3) is provided with the screwing through hole (7) for locking.

2. a kind of lengthening hexagon connecting nut as claimed in claim 1, it is characterized in that: described flange plate (2) upper surface is provided with rounding (4), described nut body (1) upper surface is provided with chamfering II (6).

3. a kind of lengthening hexagon connecting nut as claimed in claim 1, it is characterized in that: the quantity of described screwing through hole (7) is 3, the spacing between 3 screwing through hole (7) is equal between two.

4. a kind of lengthening hexagon connecting nut as claimed in claim 1, it is characterized in that: the section area of described nut body (1) is less than the section area of flange plate (3), the axial height of described nut body (1) is 1.5 ~ 2 times of nut body (1) radial width.