CN217401403U - Thread protection type nut - Google Patents

Abstract

The utility model discloses a screw thread protection type nut, including the nut body, the ring channel has been seted up to the upper and lower terminal surface of nut body, it has soft gasbag to vulcanize in the ring channel, fixedly connected with gasket on soft gasbag's the free end face, a part of gasket be in the ring channel and rather than lateral wall sliding connection, and the terminal surface setting of another part protrusion nut body of gasket, it is provided with soft rubber strip around setting on the inner circle lateral wall of gasket. The utility model relates to a nut technical field, this nut can effectively protect the screw thread lateral wall of its self terminal surface, simultaneously, can move behind the nut in the twisting its sealed with the direct interlock department of screw rod, avoids external factors such as rainwater to cause the influence to it.

Description

A wire tooth protection nut

technical field

The utility model relates to the technical field of nuts, in particular to a wire tooth protection type nut.

Background technique

The nut commonly used in the market today generally includes a nut body, a cavity formed in the nut body, and an internal thread formed on the inner wall of the nut body. When in use, just tighten the nut on the bolt.

The wire teeth at both ends of the existing nut are completely exposed to the outside world. When the screw is screwed on, the wire teeth at the ends are often touched, causing it to deform, or be impacted by external substances during the handling process. Will damage the wire teeth at the end.

To this end, we propose a wire tooth protection nut to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the utility model is to solve the problems existing in the prior art, and propose a wire tooth protection type nut.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A wire-tooth protection nut comprises a nut body, the upper and lower end surfaces of the nut body are provided with annular grooves, a soft airbag is vulcanized in the annular groove, and a gasket is fixedly connected to the free end surface of the soft airbag , a part of the gasket is in the annular groove and is slidably connected to its side wall, and another part of the gasket protrudes from the end face of the nut body, and a soft rubber strip is arranged around the inner ring side wall of the gasket .

Preferably, the front end of the soft rubber strip is provided with a rubber dome.

Preferably, a plurality of the soft rubber strips are arranged in a spiral shape, and the helix angle is consistent with the helix angle of the nut body.

Preferably, the aperture size of the central hole formed by the plurality of the soft rubber strips is smaller than the aperture size of the nut body.

Preferably, in the initial state, the outer sidewall of the soft airbag is in contact with the groove wall of the annular groove.

Preferably, the soft rubber strip is cylindrical.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model is provided with connecting parts such as annular grooves, soft airbags, gaskets and soft rubber strips. When the nut body rotates, each soft rubber strip will rotate along the thread groove of the screw, so that the thread of the screw can be adjusted. The impurities and dust on the tank are thoroughly cleaned;

2. By setting a plurality of soft rubber strips in the present invention, when the nut body is tightened, there is a tendency to move to the inside of the nut body, and the plurality of soft rubber strips will not soften when the nut body is in contact with the end face of the fastening object. The rubber strip protrudes on the outside, so that the nut body cannot be completely fitted with the end face of the fastening object, and the soft rubber strip on the other end face protrudes outward, which can block the impact of the outside on the end face wire teeth;

3. The utility model is provided with connecting parts such as gaskets and soft airbags. The gasket slides into the annular groove, and then squeezes the soft airbag, and its compression deformation will gradually fit with the thread groove of the screw, so that the screw and the The connection between the nut bodies is completely sealed, effectively preventing foreign rainwater and other impurities from entering the connection between the two, and preventing corrosion at the connection. bite more tightly.

Description of drawings

Fig. 1 is the unassembled structural representation of a kind of wire tooth protection type nut proposed by the utility model;

Figure 2 is a schematic structural diagram of a wire tooth protection type nut proposed by the utility model during assembly;

3 is a schematic structural diagram of a soft airbag and a gasket of a wire tooth protection type nut proposed by the present invention.

In the picture: 1. Nut body; 2. Ring groove; 3. Gasket; 4. Soft rubber strip; 5. Rubber round head; 6. Soft air bag.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Referring to Figures 1-3, a wire-tooth protection nut includes a nut body 1. The upper and lower end surfaces of the nut body 1 are provided with an annular groove 2, and a soft airbag 6 is vulcanized in the annular groove 2. The outer side of the soft airbag 6 The wall is in contact with the groove wall of the annular groove 2, a gasket 3 is fixedly connected to the free end surface of the soft airbag 6, a part of the gasket 3 is in the annular groove 2 and is slidably connected to its side wall, and another part of the gasket 3 is convex. The end face of the nut body 1 is provided, and the inner ring side wall of the gasket 3 is surrounded by a soft rubber strip 4 .

When actually tightening the nut body 1, first insert the screw head into the lower end face of the nut body 1, and with the rotation of the nut body 1, each soft rubber strip 4 will rotate along the thread groove of the screw, so that the Thoroughly clean the impurities and dust on the thread groove of the screw.

Further, when the screw rod enters the nut body 1, the plurality of soft rubber strips 4 will tend to move to the inside of the nut body 1, so that the plurality of soft rubber strips 4 will not be in contact with the nut body 1 tightly. When the end face of the fixed object is in contact, the soft rubber strip 4 protrudes on the outside, so that the nut body 1 cannot be completely fitted with the end face of the fastening object, and the soft rubber strip 4 on the other end face protrudes outward, which can block The impact of the outside world on the end face silk teeth.

Further, when the nut body 1 is constantly in contact with the end face of the fastening object, the gasket 3 slides into the annular groove 2, and then squeezes the soft air bag 6. In the initial state, because the initial stage of the soft air bag 6 is that In contact with the groove wall of the annular groove 2, its compression deformation will gradually fit with the thread groove of the screw, so that the connection between the screw and the nut body 1 is completely sealed, effectively preventing external rainwater and other impurities from entering the two. In addition, since the soft airbag 6 itself has elasticity, it acts like a shrapnel, so that the two are engaged more closely.

1 and 3 , specifically, the front end of the soft rubber strip 4 is provided with a rubber round head 5 .

The head of the soft rubber strip 4 is brought into contact with the thread groove of the screw in a point-contact manner, so as to avoid excessive friction, which results in a large torque required to rotate the nut, which is time-consuming and labor-intensive.

1 and 3 , specifically, a plurality of soft rubber strips 4 are arranged in a spiral shape, and the spiral angle is the same as that of the nut body 1 .

Since the helix angle of the arrangement of the soft rubber strips 4 is consistent with the helix angle in the nut body 1 , it is ensured that the soft rubber strips 4 can rotate more smoothly in the thread groove on the screw.

1-3 , specifically, the diameter of the central hole formed by the plurality of soft rubber strips 4 is smaller than that of the nut body 1 .

This arrangement can ensure that each soft rubber strip 4 is in contact with the side wall of the screw, and can make the soft rubber strip 4 on the end surface of the nut body 1 opposite to the side wall of the fastening object bend inward, thereby ensuring that the nut body is The end face of 1 can be completely fitted with the side wall of the fastened object.

1-3, specifically, the soft rubber strip (4) is cylindrical.

The cylindrical soft rubber strip 4 is easy to be processed and formed, and at the same time, deformation failure is not easy to occur during bending.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or modification of the new technical solution and its inventive concept shall be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a screw thread protection type nut, includes nut body (1), its characterized in that, ring channel (2) have been seted up to the upper and lower terminal surface of nut body (1), it has soft gasbag (6) to vulcanize in ring channel (2), fixedly connected with gasket (3) on the free terminal surface of soft gasbag (6), a part of gasket (3) be in ring channel (2) and rather than lateral wall sliding connection, and the terminal surface setting of another part protrusion nut body (1) of gasket (3), it is provided with soft rubber strip (4) to surround on the inner circle lateral wall of gasket (3).

2. Screw tooth protection type nut according to claim 1, characterized in that the front end of the soft rubber strip (4) is provided with a rubber round head (5).

3. A screw thread protected nut according to claim 1, characterised in that a plurality of said soft rubber strips (4) are arranged helically with a helix angle corresponding to the helix angle of the nut body (1).

4. Screw thread protecting nut according to claim 1, characterized in that the hole size of the central hole surrounded by the plurality of soft rubber strips (4) is smaller than the hole size of the nut body (1).

5. A screw thread guard nut as claimed in claim 1, characterized in that in the initial state the outer side wall of the bladder (6) is in contact with the wall of the annular groove (2).

6. A screw thread protected nut according to claim 1, wherein the soft rubber strip (4) is cylindrical.

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