CN213478898U

CN213478898U - Stop tongue nut

Info

Publication number: CN213478898U
Application number: CN202020803753.7U
Authority: CN
Inventors: 张德瑄; 申秀云
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-06-18
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a locking tongue nut. The nut and the stop tongue are combined to form a fastener, and the nut and the stop washer have double functions. The operation is simplified in use, and factors which can influence the performance quality are reduced. It is reliable in locking and looseness prevention and can be repeatedly used.

Description

Stop tongue nut

Technical Field

The utility model relates to a machine-building trade, concretely relates to fastener product.

Background

Existing fasteners have a type of retaining washer and a type of nut. When in use, the stop washer needs to be connected with the connected piece and also needs to be connected with the nut, so that the purpose of preventing the nut from loosening can be achieved. The drawback of the coupling operation of the stop washer with the nut is both the increase in the work load and the increase in the factors that may affect the quality of the performance.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a locking tongue nut. The locking of the screw thread connection saves a stop washer, the connection operation of the stop washer and a nut is saved, and the locking can be realized only by directly connecting the nut and a connected piece.

The technical scheme of the utility model is that: the stop tongue nut consists of two parts, namely a hexagonal nut (1) and a bendable stop tongue (2), and the two parts are combined to form a fastener. The two parts can be integrally formed during manufacturing, or the two parts are respectively processed and then combined into a whole by welding and other processes. When in use, the hexagonal nut (1) is screwed down, and the stop tongue (2) is bent and embedded into the stop groove of the connected piece, thereby realizing the connection of the thread pair and the stop and looseness prevention of the nut. When the nut is disassembled, the stop tongue (2) is pried out of the stop groove, and the stop tongue nut can be loosened.

The utility model has the advantages that: the hexagonal nut (1) and the stop washer (2) are combined into a whole to form a fastener, and the stop washer is omitted in use. The workload of the coupling operation of the stop washer and the nut is saved, and the factors which can influence the performance quality are reduced. It is reliable in locking and looseness prevention and can be repeatedly used. It is easy to manufacture and can be produced by cold heading, stamping, welding and other technological methods.

Drawings

FIG. 1 is a schematic view of an integral retaining tongue nut construction. The upper drawing is a front view and the lower drawing is a full-section plan view. The figure shows a hexagonal nut (1), a stop tongue (2).

Fig. 2 is a structural schematic view of a welding combined stop tongue nut. The upper drawing is a front view and the lower drawing is a full-section plan view. Shown in the figure are a hexagonal nut (1), a stop tongue (2), a stop washer (3).

Detailed Description

Example 1: as in fig. 1. The material is 304 stainless steel. The hexagonal nut (1) is M12, 12 bendable stop tongues (2) are uniformly distributed on the outer circumference, the diameter of the tongue root is 20mm, the tongue thickness is 1.2mm, the tongue width is 3.8mm, and the tongue length is 4 mm. During assembly, the hexagonal nut (1) is screwed to reach a specified pretightening force requirement range, one of the stop tongues (2) is aligned to one of the stop grooves of the connected piece, and an adjusting gasket can be added at the bottom of the stop tongue nut (1) to adjust the angle of the stop tongue nut (1) during screwing. Finally, the aligned stop tongue (2) is bent and embedded into the stop groove, and the assembly is finished. When the nut is disassembled, the locking tongue (2) can be pried out of the locking groove by a tool to loosen the locking tongue nut.

Example 2: as shown in fig. 2. The material is 304 stainless steel. The hexagonal nut (1) is M12. The stop washer (3) is two-layer, the single layer thickness is 1mm, 12 bendable stop tongues (2) are uniformly distributed on the outer circumference, the diameter of the tongue root is 20mm, the tongue width is 3.8mm, and the tongue length is 4 mm. The hexagonal nut (1) and the stop washer (3) are respectively machined and then welded to form a fastener. This embodiment is the same as the attaching and detaching method of embodiment 1.

The present invention is not limited to the above embodiments, and other structural designs obtained by the same or similar structure as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A stop tongue nut is characterized by comprising two parts, namely a hexagonal nut (1) and a bendable stop tongue (2), wherein the two parts are combined into a whole to form a fastener.

2. A stop tongue nut according to claim 1, characterized in that the number of stop tongues (2) is more than or equal to 1.

3. A stop tongue nut according to claim 1, characterized in that the stop tongue (2) is further constructed in a multi-layer structure with a number of layers equal to or greater than 1.