CN209083787U - A kind of hexagon slotted nut fastener - Google Patents

Abstract

The utility model discloses a kind of hexagon slotted nut fasteners, belong to nut field, a kind of hexagon slotted nut fastener, including nut itself disclosed by the utility model, nut is provided centrally with threaded hole；One end of nut is provided with the frustum of a cone, and frustum of a cone side is placed equidistant with several flutings, and the other end face of nut is provided with circular conical surface identical with frustum of a cone angle with threaded hole joint.The frustum of a cone of fluting is provided in one end of nut, the circular conical surface that can cooperate simultaneously with the frustum of a cone in the other end setting of nut, so that in single nut installation, one end with circular conical surface is bonded with mounting surface, be directed toward with frustum of a cone cone be screwed into nut it is contrary, so that nut can be stopped when back-outing by the frustum of a cone, good anti-loosing effect is played；When multiple nuts installation simultaneously, the circular conical surface of the latter nut can cover on the frustum of a cone of previous nut, frustum of a cone deformation can further be squeezed, so that its anti-loosing effect is more preferable.

Description

A hexagonal slotted nut fastener

technical field

The utility model relates to the field of nuts, in particular to a hexagonal slotted nut fastener.

Background technique

Ordinary nuts are suitable for use in fixed-load equipment. Ordinary nuts are used to fix on stationary workpieces and cooperate with flat and spring washers to ensure the reliability of the nut. However, on moving workpieces with vibration loads, the equipment may The vibration caused the nut to loosen. As a kind of nut, the slotted nut is used to connect the two mechanical equipment tightly. It is mainly used in the occasions with vibration load or alternating load. It is used in conjunction with the split pin to ensure the nut lock. It is often used as a lock nut to prevent the main nut from loosening back. The slotted nut needs to be fixed with a cotter pin through the slot of the slotted nut, and the cotter pin must pass through the middle of the screw to fix the slotted nut. Usually, both ends of the screw need to be drilled, the diameter of the hole and the size of the slotted nut. The width and depth of the slot determine the size of the cotter pin. When the selected screw, cotter pin and slotted nut are relatively matched, the nut is fixed by the screw, so that the slotted nut does not loosen. This hexagonal slotted nut has the characteristics of high strength and is not easy to loosen when subjected to vibration. It is mainly used in occasions with vibration and shock, such as front and rear axles of automobiles, lifting equipment, presses and die-casting machines.

Chinese Patent Document Publication No. CN204300086U discloses a slotted taper end locking nut assembly, the locking nut assembly includes a nut body and a washer; the nut body is composed of an outer hexagonal surface, an inner thread, and an outer conical surface; the outer hexagonal surface The outer conical surface and the outer conical surface are respectively located at the corresponding two ends of the nut body, and the inner thread runs through the center of the entire nut body; open grooves are evenly arranged on the outer conical surface, and the number of open grooves is 3 to 6; The conical structure is provided with an inner tapered surface matched with the outer tapered surface of the nut body.

The gasket side of the above-mentioned nut assembly is in contact with the mounting surface. When the nut is tightened, the gasket squeezes the outer cone surface to make it shrink, and the cone tip faces the same direction as the nut, thereby preventing the nut from tightening, so that the nut fixing effect is not good, and at the same time When multiple nuts need to be superimposed and fixed, two adjacent nuts cannot interact with each other, resulting in poor fixing effect.

Utility model content

In order to overcome the defects of the prior art, the technical problem to be solved by this utility model is to provide a hexagonal slotted nut fastener, in which a conical frustum with a slot is arranged at one end of the nut, and a The conical surface matched with the truncated cone makes the end with the conical surface fit with the mounting surface when the single nut is installed, and the point of the cone with the truncated cone points in the opposite direction of screwing in the nut, so that the nut will be screwed by the truncated cone when it is unscrewed. It has a good anti-loosening effect; at the same time, when multiple nuts are installed, the conical surface of the latter nut can be sleeved on the conical frustum of the previous nut, which can further squeeze the conical frustum to deform, making the anti-loosening effect more effective. it is good.

For this purpose, the utility model adopts the following technical solutions:

The utility model provides a hexagonal slotted nut fastener, which includes a nut itself, a threaded hole is arranged in the center of the nut; A conical surface with the same angle as the truncated cone is arranged at the connection between the end surface and the threaded hole.

The preferred technical solution of the present invention is that the slot runs through the entire height of the truncated cone, and the slot extends to the nut itself to form a small gap.

The preferred technical solution of the present invention is that the nut is configured as a hexagonal nut, and each side surface of the nut is provided with a small gap.

The preferred technical solution of the present invention is that the small notch is located in the middle position of the side surface of the nut.

The preferred technical solution of the present invention is that the outer diameter of the bottom end of the truncated cone is smaller than or equal to the circular diameter of the bottom end of the conical surface.

The preferred technical solution of the present invention is that the inner side wall of the nut is provided with a vertical groove, the longitudinal direction of the vertical groove is the same as the axial direction of the nut, and the vertical groove is connected to any one of the slots.

The beneficial effects of the present utility model are:

The utility model provides a hexagonal slotted nut fastener, which includes a nut itself, a threaded hole is arranged in the center of the nut; A conical surface with the same angle as the truncated cone is arranged at the connection between the end surface and the threaded hole. A conical frustum with a slot is arranged at one end of the nut, and the slotted arrangement enables the frustum to deform to play a clamping role, and at the same time, a conical surface that can cooperate with the frustum is arranged at the other end of the nut, so that the single nut can be fitted with a conical surface. When installing, the end with the conical surface is attached to the mounting surface, and the cone point with the truncated cone points to the opposite direction of the nut screwing in, so that the nut will be blocked by the truncated cone when it is unscrewed, which has a good anti-loosening effect; When multiple nuts are installed at the same time, the conical surface of the latter nut can be sleeved on the conical frustum of the previous nut, which can further squeeze the conical frustum to deform, so that the anti-loosening effect is better.

Description of drawings

1 is a schematic diagram of the overall structure of a hexagonal slotted nut fastener provided in a specific embodiment of the present invention;

2 is a schematic diagram of a vertical groove of a hexagonal slotted nut fastener provided in a specific embodiment of the present invention;

3 is a schematic structural diagram of a conical surface of a hexagonal slotted nut fastener provided in a specific embodiment of the present invention;

In the picture:

1. Nut; 2. Conical frustum; 11. Small gap; 12. Conical surface; 13. Vertical slot; 14. Threaded hole; 21. Slotted.

Detailed ways

The technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments.

As shown in Figure 1, Figure 2, Figure 3, a hexagonal slotted nut fastener provided in this embodiment includes a nut 1 itself, a threaded hole 14 is provided in the center of the nut 1; one end of the nut 1 is provided with a truncated cone 2. A number of slots 21 are arranged at equal distances on the side of the truncated cone 2, and a conical surface 12 with the same angle as that of the truncated cone 2 is provided where the other end face of the nut 1 meets the threaded hole 14. The nut 1 is configured as a hexagonal nut, and each side surface of the nut 1 is provided with a small gap 11 . The small notch 11 is located in the middle of the side of the nut 1 . The slot 21 runs through the entire height of the frustum 2, and the slot 21 extends to the nut 1 itself to form a small gap 11. During installation, two nuts 1 are used for fixing. First, install one nut 1 on the screw rod, so that the end of the nut 1 with the conical surface 12 is attached to the mounting surface. At this time, the conical frustum 2 at the other end of the nut 1 is in It shrinks slightly under its own deformation, so that the tip of the truncated cone 2 is in contact with the screw, which can play a role in preventing loosening. Install the second nut 1 on the screw, so that the conical surface 12 of the second nut 1 is in contact with the truncated cone 2, and the conical surface 12 squeezes the truncated cone 2 of the first nut 1, so that the tip of the truncated cone 2 It shrinks on the screw so that the truncated cone 2 can better abut with the screw, and the cone tip of the truncated cone 2 is oriented in the same direction as the nut 1 is unscrewed, which can just abut with the screw to prevent the nut 1 from unscrewing. It has better anti-loosening effect. At the same time, it can also drill holes on the screw rod, insert the cotter pin into the small gap 11 of the nut 1, and pass through the screw rod to further fix the nut 1. At the same time, the second nut 1 can also play the role of extrusion. The function of pressing and fixing the split pin makes the fixing effect of the nut 1 better.

Preferably, the outer diameter of the bottom end of the truncated cone 2 is smaller than or equal to the circular diameter of the bottom end of the conical surface 12 . The second nut 1 can be conveniently sleeved on the first nut 1, so that the second nut 1 can squeeze the cotter pin inserted in the small gap 11 more firmly.

Preferably, the inner side wall of the nut 1 is provided with a vertical groove 13, the longitudinal direction of the vertical groove 13 is the same as the axial direction of the nut 1, and the vertical groove 13 is connected to any slot 21. In order to make the fixing more firm, a vertical groove 13 is provided on the inner side wall of the nut 1, and the vertical bolt is inserted into the vertical groove 13, which can further fix the nut 1, so that the anti-loosening effect of the nut 1 is better. .

The present invention is described by preferred embodiments, and those skilled in the art know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the claims of the present application all belong to the protection scope of the present invention.

Claims (6)

1. a kind of hexagon slotted nut fastener, it is characterised in that:

Including nut (1) itself, the nut (1) is provided centrally with threaded hole (14)；

One end of the nut (1) is provided with the frustum of a cone (2), and the frustum of a cone (2) side is placed equidistant with several flutings (21), the other end face of the nut (1) is provided with circular cone identical with the frustum of a cone (2) angle with threaded hole (14) joint Face (12).

2. hexagon slotted nut fastener according to claim 1, it is characterised in that:

It is described fluting (21) run through the entire frustum of a cone (2) height, and the fluting (21) extend to nut (1) itself formation it is small Notch (11).

3. hexagon slotted nut fastener according to claim 1, it is characterised in that:

The nut (1) is configured to six-sided nut (1), and each side of the nut (1) is provided with small gap (11).

4. hexagon slotted nut fastener according to claim 3, it is characterised in that:

The small gap (11) is located at the middle position of nut (1) side.

5. hexagon slotted nut fastener according to claim 1, it is characterised in that:

The Basolateral diameter of the frustum of a cone (2) is less than or equal to the circular conical surface (12) bottom end circular diameter.

6. hexagon slotted nut fastener according to claim 1, it is characterised in that:

The inner sidewall of the nut (1) is provided with a vertical slot (13), the length direction and nut (1) axis of the vertical slot (13) It is identical to direction, and the vertical slot (13) connects with fluting (21) described in any one.