CN205478839U - Nut with seal groove - Google Patents

Abstract

The utility model provides a nut with seal groove comprises nut body, male member, recess, ring channel, elasticity sealing washer A, elasticity sealing washer B, screw hole, protruding muscle, back -off spare, chamfer A, chamfer B. Be equipped with the screw hole on the nut body, be equipped with the male member on the axial terminal surface of nut body, another terminal surface of the relative nut body of male member is equipped with back -off spare, has seted up an annular recess on the inner wall of screw hole, installed elasticity sealing washer B in the recess, offered the ring channel on the lower terminal surface of nut body, installed elasticity sealing washer A in the ring channel.

Description

A nut with a sealing groove

technical field

The utility model relates to the technical field of nuts, in particular to a nut with a sealing groove.

Background technique

Nuts are usually used in conjunction with bolts to connect fastening parts. When using bolts and nuts to lock parts together, in order to prevent the nuts from loosening, generally put spring gaskets on the bolts before screwing the nuts. Tight on the bolt, relying on the elastic force of the spring sealing washer to increase the friction between the nut and the bolt, thereby preventing the nut from loosening and sealing. However, due to the long-term use of the spring sealing washer, the spring The position of the sealing gasket is easy to change, thus affecting the sealing performance of the elastic sealing ring.

Utility model content

The purpose of this utility model is to provide a nut with a sealing groove to solve the problems raised in the above-mentioned background technology.

The technical scheme that the utility model relates to:

A nut with a sealing groove is composed of a nut body, a protrusion, a groove, an annular groove, an elastic sealing ring A, an elastic sealing ring B, a threaded hole, a rib, an undercut, a chamfer A, and a chamfer B.

The nut body is provided with threaded holes.

A protruding piece is provided on one axial end surface of the nut body, and an undercut is provided on the other end surface of the protruding piece opposite to the nut body.

An annular groove is provided on the inner wall of the threaded hole, and an elastic sealing ring B is installed in the groove.

An annular groove is opened on the lower end surface of the nut body, and an elastic sealing ring A is installed in the annular groove.

Preferably, a chamfer A is provided on the upper edge of the threaded hole, and a chamfer B is provided on the lower edge of the threaded hole.

Preferably, the cross section of the groove is rectangular.

Preferably, the cross section of the annular groove is rectangular.

Compared with the prior art, the beneficial effect of the utility model is: the nut with the sealing groove has a simple structure and a reasonable design, and an elastic sealing ring B is installed in the groove by opening a groove, and the elastic sealing ring B is used to seal the nut. The elastic force to increase the friction between the nut and the bolt matching thread, and then prevent the nut from loosening. By opening an annular groove, an elastic sealing ring A is installed in the annular groove, which can prevent the position of the elastic sealing ring A. Dislocation occurs, effectively improving its sealing performance.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of the utility model when no elastic sealing ring is installed.

Fig. 2 is a schematic cross-sectional structure diagram of the utility model when the elastic sealing ring has been installed.

In the figure: 1. Nut body, 2. Protruding piece, 3. Groove, 4. Annular groove, 5. Elastic sealing ring A, 6. Elastic sealing ring B, 11. Threaded hole, 12. Convex rib, 21. Inverted Fastener, 111. chamfer A, 112. chamfer B.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The utility model is shown in Figure 1 and Figure 2. A nut with a sealing groove is composed of a nut body 1, a convex part 2, a groove 3, an annular groove 4, an elastic sealing ring A5, an elastic sealing ring B6, and a threaded hole 11. , Rib 12, inverted buckle 21, chamfer A111, chamfer B112.

The nut body 1 is provided with a threaded hole 11 .

A protruding piece 2 is provided on one axial end surface of the nut body 1 , and an undercut 21 is provided on the other end surface of the protruding piece 2 opposite to the nut body 1 .

An annular groove 3 is provided on the inner wall of the threaded hole 11. The cross section of the groove 3 is rectangular. An elastic sealing ring B6 is installed in the groove 3. By opening the groove 3, the groove 3 is installed. There is an elastic sealing ring B6, and the elastic force of the elastic sealing ring B6 is used to increase the frictional force between the matching thread of the nut and the bolt, thereby preventing the nut from loosening.

The lower end surface of the nut body 1 is provided with an annular groove 4, the cross section of the annular groove 4 is rectangular, and an elastic sealing ring A5 is installed in the annular groove 4, and an elastic sealing ring A5 is installed in the annular groove 4 by opening the annular groove 4. The sealing ring A5 can prevent the displacement of the elastic sealing ring A5 and effectively improve its sealing performance.

The upper edge of the threaded hole 11 is provided with a chamfer A111, and the lower edge of the threaded hole is provided with a chamfer B112, which is convenient for the nut to be screwed into the bolt.

Compared with the prior art, the beneficial effect of the utility model is that the nut with the sealing groove has a simple structure and a reasonable design. A groove 3 is provided, and an elastic sealing ring B6 is installed in the groove 3, which is sealed with an elastic seal. The elastic force of ring B6 is used to increase the frictional force between the mating threads of the nut and the bolt, thereby preventing the nut from loosening. By opening an annular groove 4, an elastic sealing ring A5 is installed in the annular groove 4, which can prevent elastic sealing The position of ring A5 is dislocated, which effectively improves its sealing performance.

Claims (4)

1. A nut with a sealing groove, consisting of a nut body (1), a convex piece (2), a groove (3), an annular groove (4), an elastic sealing ring A (5), and an elastic sealing ring B (6) , threaded hole (11), rib (12), undercut (21), chamfer A (111), chamfer B (112), characterized in that: the nut body (1) is provided with thread Holes (11), one axial end surface of the nut body (1) is provided with a protruding piece (2), and the other end surface of the protruding piece (2) is opposite to the nut body (1) is provided with an undercut piece (21), An annular groove (3) is provided on the inner wall of the threaded hole (11), and an elastic sealing ring B (6) is installed in the groove (3), and an annular groove (3) is provided on the lower end surface of the nut body (1). There is an annular groove (4), and an elastic sealing ring A (5) is installed in the annular groove (4). 2. A nut with sealing groove according to claim 1, characterized in that: the upper edge of the threaded hole (11) is provided with a chamfer A (111), and the lower edge of the threaded hole (11) is provided with Chamfer B (112). 3. A nut with sealing groove according to claim 1, characterized in that: the cross section of the groove (3) is rectangular. 4. A nut with sealing groove according to claim 1, characterized in that: the section of the annular groove (4) is rectangular.