CN216519102U - Nut assembly with self-locking function - Google Patents

Abstract

The utility model discloses a nut component with a self-locking function, which comprises: one end of the first nut is provided with a sleeve ring part, and the peripheral side wall of the sleeve ring part is provided with at least one first notch and one second notch; one end is provided with the open second nut that holds the chamber, and lantern ring portion activity cartridge is in holding the chamber, and lantern ring portion with hold and be provided with the extrusion structure that can make lantern ring portion shrink fold between the chamber. The lantern ring portion makes the shrink of lantern ring portion fold and tightly press from both sides tight bolt with the extrusion structure who holds the chamber to realize the function of nut component auto-lock, effectively prevent that the nut is unexpected to loosen from the bolt and take off.

Description

Nut assembly with self-locking function

Technical Field

The utility model relates to the field of nuts, in particular to a nut assembly with a self-locking function.

Background

As is known, nuts are used primarily to lock a workpiece in cooperation with a bolt. Wherein the nut is screwed on the bolt. When the nut is vibrated, the nut can rotate on the bolt and automatically fall off, so that the workpiece cannot be locked, and potential safety hazards exist.

In order to prevent the nut from accidentally loosening and falling off, the self-locking bolt in the prior art adopts a double-nut locking structure or a spring gasket and the like, but the nuts are applied to the environment with severe vibration, the situation that the nuts are loosened from the bolt still can occur, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the nut assembly with the self-locking function is good in locking effect, and the nut is effectively prevented from falling off from the bolt accidentally.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a nut assembly with self-locking functionality according to some embodiments of the utility model includes: the nut comprises a first nut, a second nut and a third nut, wherein one end of the first nut is provided with a collar part extending outwards along the axial direction of the first nut, and at least one first notch; one end of the second nut is provided with an open accommodating cavity; the sleeve ring part is movably inserted into the containing cavity, and an extrusion structure capable of enabling the sleeve ring part to be contracted and folded is arranged between the sleeve ring part and the containing cavity.

In some embodiments of the present invention, the collar portion is a conical boss, the extruding structure includes a first guiding inclined surface provided on a peripheral side wall of the conical boss, the collar portion is movably inserted into the accommodating cavity, and an end portion of the accommodating cavity or an inner wall of the accommodating cavity abuts against the first guiding inclined surface.

In some embodiments of the present invention, the pressing structure includes a second guiding inclined surface provided on an inner wall of the accommodating cavity, the collar portion is inserted into the accommodating cavity, and the second guiding inclined surface abuts against the first guiding inclined surface and presses the collar portion to contract.

In some embodiments of the present invention, the number of the first notches is one, and the first notch and the second notch are opened on two opposite side walls of the collar portion.

In some embodiments of the present invention, the number of the first notches is two, and the two first notches and the two second notches are uniformly distributed around the circumferential direction of the collar portion.

In some embodiments of the present invention, the number of the first notches is three, and three first notches and three second notches are uniformly distributed around the circumferential direction of the collar portion.

In some embodiments of the utility model, the thickness of the collar portion is equal to or less than the depth of the receiving cavity.

In some embodiments of the utility model, the inner wall of the collar portion is provided with a thread.

The nut component of certain embodiments of the utility model has the following beneficial effects: the lantern ring portion of first nut is provided with at least one first breach and second breach for first nut has the state that can open or draw in, and when first nut and second nut spiro union were on the bolt, the chamber that holds of lantern ring portion embedding second nut of first nut, lantern ring portion and the extrusion structure who holds the chamber make lantern ring portion shrink fold and firmly clamp the bolt, thereby realize the function of nut subassembly auto-lock, prevent effectively that the nut is unexpected from loosening from the bolt.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of a nut assembly according to certain embodiments of the utility model;

FIG. 2 is an exploded view of the nut assembly shown in FIG. 1;

FIG. 3 is a detail view of a first nut of the nut assembly shown in FIG. 1;

fig. 4 is a sectional view of the internal structure of the nut assembly shown in fig. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of the terms is one or more, the meaning of a plurality of the terms is three or more, and the terms larger, smaller, larger, etc. are understood to include no essential numbers, and the terms larger, smaller, etc. are understood to include essential numbers. The description of first, second, etc. if any, is for the purpose of distinguishing between technical features and not intended to indicate or imply relative importance or implicitly indicate a number of indicated technical features or implicitly indicate a precedence relationship of indicated technical features.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 4, a nut assembly with a self-locking function according to some embodiments of the present invention includes a first nut 100 and a second nut 300, wherein one end of the first nut 100 is provided with a collar portion 110 extending outward along an axial direction of the first nut 100, the collar portion 110 and the first nut 100 are an integral structure, in this embodiment, a wall thickness of the collar portion 110 is smaller than a wall thickness of the first nut 100, it should be noted that a wall thickness of the collar portion 110 may also be greater than or equal to a wall thickness of the first nut 100, and the wall thickness may specifically be determined according to actual needs. At least one first notch 210 is formed in the peripheral side wall of the collar portion 110, a second notch 220 is formed in the peripheral side wall of the collar portion 110, and the second notch 220 extends through the peripheral side wall of the nut 100; one end of the second nut 300 is provided with an open receiving cavity 310; the collar portion 110 is movably inserted into the accommodating cavity 310, and a squeezing structure capable of enabling the collar portion 110 to contract is arranged between the collar portion 110 and the accommodating cavity 310.

By adopting the structure, the collar part 110 of the first nut 100 is provided with at least one first notch 210 and one second notch 220, so that the first nut 100 has an openable or furlable state, when the first nut 100 and the second nut 300 are screwed on the bolt, the collar part 110 of the first nut 100 is embedded into the accommodating cavity 310 of the second nut 300, and the extrusion structure between the collar part 110 and the accommodating cavity 310 enables the collar part 110 to contract and fold and firmly clamp the bolt, thereby realizing the self-locking function of the nut assembly and effectively preventing the nut from being accidentally loosened from the bolt.

Referring to fig. 2, 3 and 4, in order to facilitate the insertion of the collar portion 110 into the receiving cavity 310, in some embodiments of the present invention, the collar portion 110 is a conical boss, and specifically, the diameter of the collar portion 110 is gradually reduced in a direction away from the first nut 100. The extrusion structure includes and sets up the first direction inclined plane 410 on circular cone boss periphery lateral wall, because collar portion 110 is a circular cone boss, consequently, collar portion 110 keeps away from the one end diameter of first nut 100 less, be convenient for collar portion 110 insert the chamber 310 that holds of second nut 300, along with collar portion 11 constantly inserts and holds in the chamber 310, hold the tip of chamber 310 or hold the inner wall and the first direction inclined plane 410 looks butt extrusion in chamber 310, and then hold the tip of chamber 310 or hold the inner wall of chamber 310 and can extrude collar portion 11 shrink and fold clamping bolt, moreover, the steam generator is simple in structure.

In order to enable the inner wall of the accommodating chamber 310 to better press the first guide slope 410, in some embodiments of the present invention, the pressing structure includes a second guide slope 420 opened on the inner wall of the accommodating chamber 310, and the shape of the second guide slope 420 matches the shape of the first guide slope 410. The collar portion 110 is inserted into the accommodating cavity 310, and the second guiding inclined surface 420 is in fit abutment with the first guiding inclined surface 410 and presses the collar portion 110 to contract. Thereby making the stress of the collar portion 110 more uniform.

In order to make the accommodating chamber 310 better press the collar portion 110 to be contracted, in some embodiments of the present invention, the number of the first notches 210 is one, and the first notch 210 and the second notch 220 are opened on two opposite sidewalls of the collar portion 110. It is understood that the number of the first notches 210 may also be two, and the two first notches 210 and the second notches 220 are uniformly distributed around the circumference of the collar portion 110. Of course, the number of the first notches 210 is three, and three first notches 210 and three second notches 220 are uniformly distributed around the circumferential direction of the collar portion 110. By adopting the above structure, the first nut 100 and the collar portion 110 have better elasticity, so that the accommodating cavity 310 can extrude the collar portion 110 to contract.

Wherein, in order to facilitate the accommodation chamber 310 to be matched with the collar portion 110, in some embodiments of the present invention, the thickness of the collar portion 110 is equal to or less than the depth of the accommodation chamber 310. By adopting the structure, the collar part 110 can be completely embedded into the accommodating cavity 310, and the extrusion effect of the accommodating cavity 310 on the collar part 110 is ensured.

Further, in order to enable the collar portion 110 to grip the bolt better, in some embodiments of the utility model, the inner wall of the collar portion 110 is provided with threads. By adopting the structure, the inner wall of the collar part 110 can be better attached to the bolt, so that the bolt can be better clamped when the collar part 110 is contracted and folded, and the self-locking performance of the nut component is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (8)

1. A nut component with self-locking function is characterized by comprising:

a first nut (100), one end of the first nut (100) is provided with a collar portion (110) extending outwards along the axial direction of the first nut (100),

at least one first notch (210), all the first notches (210) are arranged on the peripheral side wall of the sleeve ring part (110),

the second notch (220) is formed in the peripheral side wall of the collar portion (110), and the second notch (220) extends through the peripheral side wall of the first nut (100);

a second nut (300), wherein one end of the second nut (300) is provided with an open accommodating cavity (310);

the sleeve ring part (110) is movably inserted into the accommodating cavity (310), and an extrusion structure capable of enabling the sleeve ring part (110) to be contracted and folded is arranged between the sleeve ring part (110) and the accommodating cavity (310).

2. The nut component with the self-locking function according to claim 1,

the collar part (110) is a conical boss,

the extrusion structure comprises a first guide inclined plane (410) arranged on the peripheral side wall of the conical boss,

the collar portion (110) is movably inserted into the accommodating cavity (310), and the end portion of the accommodating cavity (310) or the inner wall of the accommodating cavity (310) is abutted against the first guide inclined surface (410).

3. The nut component with the self-locking function according to claim 2,

the extrusion structure comprises a second guide inclined plane (420) arranged on the inner wall of the containing cavity (310),

the sleeve ring part (110) is inserted into the accommodating cavity (310), and the second guide inclined surface (420) is abutted to the first guide inclined surface (410) and extrudes the sleeve ring part (110) to shrink and fold.

4. The nut component with the self-locking function according to claim 1,

the number of the first gaps (210) is one, and the first gaps (210) and the second gaps (220) are arranged on two opposite side walls of the sleeve ring part (110).

5. The nut component with the self-locking function according to claim 1,

the number of the first gaps (210) is two, and the two first gaps (210) and the two second gaps (220) are uniformly distributed around the circumferential direction of the collar portion (110).

6. The nut component with the self-locking function according to claim 1,

the number of the first gaps (210) is three, and the three first gaps (210) and the three second gaps (220) are uniformly distributed around the circumferential direction of the collar portion (110).

7. The nut assembly with self-locking function according to any one of claims 1 to 6,

the thickness of the collar portion (110) is equal to or less than the depth of the receiving cavity (310).

8. The nut assembly with self-locking function according to any one of claims 1 to 6,

the inner wall of the collar portion (110) is provided with threads.

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