Novel nut with protective cover

Abstract

The novel nut with the protective cover comprises a nut body, a telescopic protective cover, an abutting gasket and a sealing ring, the sealing ring is embedded in the end face of one side of the nut body, the telescopic protective cover is detachably arranged on the end face of the other side of the nut body, the abutting gasket is arranged at the position, corresponding to a nut center hole, in the telescopic protective cover, and the abutting gasket is detachably arranged on the end face of the other side of the nut body. The abutting gasket is used for touching the end face of the bolt. When the nut is screwed into the bolt for fastening, the telescopic shield can protect the exposed part of the bolt, so that the bolt is prevented from being corroded in a severe environment; when the exposed part of the bolt is long, the end face of the bolt makes contact with the abutting gasket, the end face of the bolt drives the cover body in the telescopic protective cover to stretch the corrugated telescopic cover, and therefore the purpose of self-adaption to the exposed length of the bolt is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a novel nut with a protective cover. Background Art

[0002] Bolts are the most common detachable fasteners and are widely used in electronic products, digital products, mechanical equipment, ships, vehicles, bridges, roads, municipal administration, water conservancy projects, etc. After the existing bolts are tightened with nuts, a part of them will be exposed. The exposed threads are easily corroded in harsh environments. In severe cases, the bolts may be slipped or stuck during subsequent disassembly. Therefore, a new type of nut with a protective cover is designed to solve the above problem. Utility Model Content

[0003] In view of the shortcomings of existing fasteners, the purpose of the utility model is to provide a new type of nut with a protective cover, which has the advantages of protecting the exposed part of the bolt and adapting to the exposed length of the bolt.

[0004] In order to achieve the above-mentioned purpose, a technical solution adopted by the utility model is: a new type of nut with a protective cover, comprising a nut body, a telescopic protective cover, a backing gasket and a sealing ring, wherein the sealing ring is embedded in the end face of one side of the nut body, the telescopic protective cover is detachably arranged on the end face of the other side of the nut body, and a backing gasket is arranged in the telescopic protective cover at a position corresponding to the center hole of the nut, and the backing gasket is used to touch the end face of the bolt;

[0005] Preferably, the telescopic cover comprises a base, a cover body and a corrugated telescopic cover, one end of the corrugated telescopic cover is fixedly connected to the cover body, and the other end of the corrugated telescopic cover is fixedly connected to the base, the base is used to be screwed on the end face of the nut body for detachable fixation, and an abutment gasket is fixed on the inner end face of the cover body; when the nut is screwed into the bolt for tightening, the telescopic cover can protect the exposed part of the bolt, thereby preventing the bolt from being corroded in a harsh environment;

[0006] Further preferably, the bellows is made of a metal material with good ductility, and the bellows can freely expand and contract when subjected to external force; when the exposed portion of the bolt is long, the end face of the bolt touches the abutting gasket, and during the process of the nut body and the bolt continuing to be screwed together and tightened, the end face of the bolt drives the cover body in the telescopic shield to stretch the bellows, thereby achieving the purpose of self-adapting the exposed length of the bolt;

[0007] Preferably, the abutment gasket is made of polytetrafluoroethylene; when the bolt touches the abutment gasket, the abutment gasket can protect the bolt end thread from wear;

[0008] The beneficial effects of the utility model are: 1. When the nut is screwed into the bolt for tightening, the telescopic shield can protect the exposed part of the bolt, thereby preventing the bolt from being corroded in a harsh environment; 2. When the exposed part of the bolt is long, the end face of the bolt touches the abutting gasket, and the end face of the bolt drives the cover body in the telescopic shield to stretch the corrugated telescopic shield, thereby achieving the purpose of adaptively adjusting the exposed length of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a cross-sectional structural view of the utility model;

[0010] Figure 2 It is a cross-sectional structural view of the utility model in a screwed-on state. DETAILED DESCRIPTION

[0011] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0012] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0013] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "provided with", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0014] See also Figure 1 to Figure 2 , the utility model embodiment includes:

[0015] A novel nut with a protective cover, comprising a nut body 1, a telescopic protective cover 2, a backing gasket 3 and a sealing ring 4, wherein the sealing ring 4 is embedded in the end face of one side of the nut body 1, the telescopic protective cover 2 is detachably arranged on the end face of the other side of the nut body 1, and a backing gasket 3 is arranged in the telescopic protective cover 2 at a position corresponding to the center hole of the nut, and the backing gasket 3 is used to touch the end face of the bolt;

[0016] Preferably, the telescopic cover 2 comprises a base 21, a cover 22 and a bellows telescopic cover 23, one end of the bellows telescopic cover 23 is fixedly connected to the cover 22, and the other end of the bellows telescopic cover 23 is fixedly connected to the base 21, the base 21 is used to be screwed on the end face of the nut body 1 for detachable fixation, and the inner end face of the cover 22 is fixed with abutting gasket 3; when the nut is screwed into the bolt for tightening, the telescopic cover 2 can protect the exposed part of the bolt, thereby preventing the bolt from being corroded in a harsh environment;

[0017] Further preferably, the bellows telescopic cover 23 is made of a metal material with good ductility, and the bellows telescopic cover 23 can freely expand and contract when subjected to external force; when the exposed portion of the bolt is long, the end face of the bolt touches the abutting gasket 3, and during the process of the nut body 1 and the bolt continuing to be screwed together and tightened, the end face of the bolt drives the cover body 22 in the telescopic cover 2 to stretch the bellows telescopic cover 23, thereby achieving the purpose of adaptively adjusting the exposed length of the bolt;

[0018] Preferably, the abutting gasket 3 is made of polytetrafluoroethylene; when the bolt touches the abutting gasket 3, the abutting gasket 3 can protect the bolt end thread from wear;

[0019] Through the above settings, in the actual working process, its specific working principle is as follows:

[0020] The nut body 1 is sleeved on the bolt and screwed together. After screwing together, the telescopic shield 2 can protect the exposed part of the bolt, thereby preventing the bolt from being corroded in a harsh environment. At the same time, the sealing ring 4 on the end face of one side of the nut body 1 can prevent external liquid from entering the telescopic shield 2, and when the exposed part of the bolt is long, the end face of the bolt touches the abutting gasket 3. When the nut body 1 and the bolt continue to be screwed together and tightened, the end face of the bolt drives the cover body 22 in the telescopic shield 2 to stretch the corrugated telescopic shield 23, thereby adapting to the exposed length of the bolt.

[0021] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of nut with a protective cover, characterized in that: It includes a nut body, a telescopic shield, a supporting gasket and a sealing ring. The sealing ring is embedded in the end face of one side of the nut body. The telescopic shield is detachably arranged on the end face of the other side of the nut body. A supporting gasket is arranged in the telescopic shield at a position corresponding to the center hole of the nut. The supporting gasket is used to touch the end face of the bolt.

2. A novel nut with a protective cover according to claim 1, characterized in that: The telescopic shield comprises a base, a cover body and a corrugated telescopic shield, one end of the corrugated telescopic shield is fixedly connected to the cover body, and the other end of the corrugated telescopic shield is fixedly connected to the base, the base is used to be screwed on the end face of the nut body for detachable fixation, and an abutment gasket is fixed to the inner end face of the cover body.

3. A novel nut with a protective cover according to claim 2, characterized in that: The bellows telescopic cover is made of a ductile metal material, and the bellows telescopic cover can freely expand and contract when subjected to external force.

4. A novel nut with a protective cover according to claim 1, characterized in that: The abutting gasket is made of polytetrafluoroethylene.

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