CN201016354Y

CN201016354Y - Slotted nut capable of reelingly regulating slotting angle

Info

Publication number: CN201016354Y
Application number: CNU2007200312051U
Authority: CN
Inventors: 张振坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-08
Filing date: 2007-02-08
Publication date: 2008-02-06
Anticipated expiration: 2017-02-08

Abstract

The utility model provides a rotatable slot angle adjustable slotted nut, and is a slotted nut used for bolt fasteners. The angle of a slot on the slotted nut can be adjusted by means of turning. When the utility model is used, the utility model is arranged on a bolt provided with a pinhole by means of threading. After the nut fastens, the angle of the tubular slot can be adjusted by means of contrarotation so that the slot can be aligned with the bolt pinhole conveniently, and a cotter pin can thread through the utility model conveniently, and the nut reaches the optimal fastening status. Under such a circumstance, the nut can only turn in the fastening direction, and can not turn reversely so as to ensure the nut to fasten firmly to the optimal status, not to become flexible. When the nut needs loosening, the bolt and the cotter pin on the tubular slotted body must be taken off, and in this way, the nut can be loosened.

Description

The slotted nut of rotatable adjustment included angle

Technical field

The utility model belongs to the mechanical parts field, relates to a kind of slotted nut of rotatable adjustment included angle, is the slotted nut of a kind of locking usefulness of bolt fastener use.

Background technique

At present, employed hexagon slotted nut all is the female one of groove on the bolt, after nut screws, insert cotter pin by the place that is equipped with the pin-and-hole symmetry from slotted opening and bolt end, carry out locking, owing to be 60 ° between the slotted opening of six symmetries of this slotted nut, when nut is fastened to a certain degree, pin-and-hole on the bolt often can not align mutually with the notch of slotted nut, want to penetrate cotter pin, or needed tightening nut tightly, by force alignment, can make nut and bolt be in fatigue state for a long time like this, running fracture easily; Need loose withdrawing nut, can make the bolt fastener fastening pressure not enough so again, therefore in use, locking with slotted nut is to be difficult to reach optimal tightening state.

Summary of the invention

In order to solve the shortcoming of above-mentioned existence, the fluting that the purpose of this utility model provides on a kind of slotted nut can be by rotating the slotted nut of adjusting angle, after nut is fastening, by adjusting included angle, be easy to make fluting to align with the bolt pin-and-hole, be convenient to penetrate cotter pin, make nut reach optimal tightening state, difficult pine moves back.

The utility model is made of nut, tubular fluting body, straight pin, spring.One end of described nut is a hexagon, the other end periphery is processed into the toroidal that leaves certain altitude, inside is the round concave shape hole, the internal diameter of inner recessed circular port is slightly larger than the external diameter of tubular fluting body projection, makes a call to the circular hole of 2 to 4 certain depths on the nut plane of interior round concave shape hole central cross symmetry.Described tubular fluting inside and outside is smooth, open 6 to 12 notches that do not wait of certain depth and width symmetrically at its end, the other end periphery diameter is greater than the external diameter of tubular fluting body, along 8 to 32 flexuoses that wait, that do not have constant slope of branch processing such as external diameter periphery bottom surface of protruding.Described straight pin is a slightly thin convex cylindrical pin of an end, and the diameter of pin is slightly less than the Circularhole diameter of beating on the nut inward recess plane.Described spring external diameter equates with the external diameter of straight pin.

Description of drawings

Fig. 1 is that the utility model master looks and partly cuts open structural representation;

Fig. 2 is the utility model plan structure schematic representation;

Fig. 3 is that this model utility and bolts assemblies are used schematic representation;

Below in conjunction with accompanying drawing the utility model is done further narration:

Embodiment

As shown in Figure 1: the utility model is by nut 1, tubular fluting body 2, straight pin 3, spring 4 parts such as grade are formed, the thin end that straight pin 3 protrudes inserts in the circular hole of spring 4, with spring 4, straight pin 3 is respectively charged in 2 to 4 circular holes on the nut 1 inward recess plane, the straight pin 3 of packing into slightly exceeds plane on the circular hole, the slot base of body 2 band saw dentations of tubular is put into nut round concave shape hole, contact with the nut plane is closely connected, the projection of straight pin 3 snaps in respectively in the hypotenuse notch of tubular fluting body 2 band saw dentations very symmetrically, the round edge that nut round concave shape hole periphery is had certain wall thickness is by the appropriateness extruding, with the tubular outer radius portion inclusion that body 2 protrudes of slotting, make nut 1, tubular fluting body 2, straight pin 3, spring 4 combines together, tubular fluting body 2 can be in nut 1 backward rotation, when tubular fluting body 2 fixedly the time, the forward fastening only rotation of nut 1, the several straight pins 3 that protruded by circular hole in the nut 1 block the jagged right angle side in tubular fluting body 2 bottoms, make nut 1 and can not move back commentaries on classics.

By shown in Figure 3: can clearly reflect the assembly relation between the utility model and the bolt, adopt the slotted nut of rotatable adjustment included angle to use simple and convenient, during use, this slotted nut is installed on the bolt 5 that is equipped with pin-and-hole, when the nut fastening force reaches requirement, by backward rotation tubular fluting body, the pin-and-hole of slotting with on the bolt is alignd, penetrate cotter pin 6, the nut of this moment rotates to fastening direction only, can not move back commentaries on classics, when needing loose nut 1, the cotter pin 6 that must take down on bolt 5 and the tubular fluting body 2 can loose nut, thereby guarantees firm fastening loosening of nut 5.

Advantage of the present utility model:

1, when fastening nuts puts in place, such as the gap of fluting when pin-and-hole on the bolt can not align, the body but backward rotation is slotted, The pin-and-hole of slotting with on the bolt is alignd, penetrate split pin, prevent nut loosening.

2, after the nut in the middle of the use used by a period of time, because metal fatigue, the pressure fastening force of generation was inadequate, needs again When fastening, can take down split pin, only need again fastening nuts to be got final product.

3, slotted nut maintenance, oiling, the easy maintenance of this rotatable adjustment included angle, anti-loosing effect is apparent.

Claims

1. the slotted nut of a rotatable adjustment included angle, by nut, tubular fluting body, straight pin, parts such as spring are formed, it is characterized in that: the thin end that straight pin protrudes inserts in the circular hole of spring, with spring, straight pin is respectively charged in 2 to 4 circular holes justifying in the nut on the shrinkage pool plane, the interior pin of circular hole of packing into slightly exceeds the last plane of circular hole, the base of tubular fluting body band saw dentation is put into nut round concave shape hole, contact with the nut plane is closely connected, the straight pin that exceeds circular hole snaps in respectively in the hypotenuse notch of tubular fluting body bottom band saw dentation symmetrically, nut round concave shape hole periphery has the round edge of certain wall thickness by the appropriateness extruding, with the tubular outer radius portion inclusion that body protrudes of slotting, make nut, tubular fluting body, straight pin, spring combines together.

2. the slotted nut of rotatable adjustment included angle according to claim 1, it is characterized in that: an end of described nut is a hexagon, the other end periphery is processed into the toroidal that leaves certain altitude, inside is the round concave shape hole, makes a call to the circular hole of 2 to 4 certain depths on the nut plane of concave hole central cross symmetry.

3. the slotted nut of rotatable adjustment included angle according to claim 1, it is characterized in that: described tubular fluting body is inside and outside smooth, open 6 to 12 notches that do not wait of certain depth and width symmetrically at its end, the other end periphery diameter is greater than the external diameter of tubular fluting body, along 8 to 32 flexuoses that wait, that do not have constant slope of branch processing such as external diameter periphery bottom surface of protruding.