CN213575081U

CN213575081U - Nut with good sealing performance

Info

Publication number: CN213575081U
Application number: CN202022348142.0U
Authority: CN
Inventors: 刘意
Original assignee: Foshan Ruosen Precision Hardware Products Co ltd
Current assignee: Foshan Ruosen Precision Hardware Products Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-29
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a nut that leakproofness is good, including base, fixed plate, circular slot and protruding axle, the base lower extreme is fixed with sealed rubber ring, and is fixed with the lateral wall on the base to be fixed with the fixed column on the lateral wall, the fixed column internal fixation has first spring simultaneously, the circular slot is seted up on the lateral wall, and is provided with metal shrapnel in the circular slot to metal shrapnel is fixed and is covered after, and the metal shrapnel lower extreme is fixed with spacing post simultaneously, spacing hole interconnect of spacing post, and spacing hole set up on the lateral wall, the protruding axle is fixed and is covered after, and protruding axle and recess interconnect to the recess is seted up on the fly leaf. This nut that leakproofness is good adopts combination formula shunting structure to replace traditional integral type structure nut, makes the nut can realize the internal diameter regulation of certain limit to adapt to not unidimensional screw rod and cooperate, the locking back lid of cooperation fastening can avoid the nut to produce and slide, and elastic construction makes the nut more laborsaving when carrying out the dismouting.

Description

Nut with good sealing performance

Technical Field

The utility model relates to a nut technical field specifically is a nut that leakproofness is good.

Background

The nut is a nut, is a part screwed together with a bolt or a screw rod to play a role in fastening, is divided into a stainless steel nut, a carbon steel nut, a non-ferrous metal nut and the like according to different materials, and is divided into a self-locking nut, a locknut and the like according to the characteristics of the nut.

The nut is widely used in various fields as a part having connection properties, and along with the development of the current-stage industry and science and technology, the nut is required to be used for assembling instruments or equipment so as to ensure the stability between the whole devices.

And to special instrument equipment, also change to the requirement of nut, and present nut is mostly the integral type structure, has inconvenient regulation internal thread size, leakproofness is low and use the easy not hard up scheduling problem for a long time, so need improve traditional nut to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nut that leakproofness is good to propose inconvenient regulation interior line size, leakproofness low and the easy not hard up problem of long-time use in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the nut comprises a base, a fixed plate, a circular groove and a protruding shaft, wherein a sealing rubber ring is fixed at the lower end of the base, a side wall is fixed at the upper end of the base, a fixed column is fixed on the side wall, a first spring is fixed in the fixed column, the tail end of the first spring is connected with a sliding rod, the sliding rod is arranged in the fixed column and is fixed on a movable plate, the fixed plate is fixed on the side wall, thread teeth are fixed on the movable plate and the fixed plate, the circular groove is formed in the side wall, a metal elastic sheet is arranged in the circular groove and is fixed on a rear cover, a limiting column is fixed at the lower end of the metal elastic sheet, limiting holes of the limiting column are connected with each other, the limiting holes are formed in the side wall, the protruding shaft is fixed on the rear cover, the protruding shaft is connected with a groove, and the groove is formed in the movable.

Preferably, the width of the fixed column is larger than that of the sliding rod, and the fixed column is in sliding connection with the movable plate.

Preferably, the sliding rod forms an elastic mechanism with the fixed column through the first spring, the sliding rod is in sliding connection with the fixed column, and the sliding rod is of a T-shaped structure.

Preferably, the movable plate and the fixed plate are concentrically distributed about a central point of the side wall, the lower end of the movable plate is in an inclined structure, and the inner diameter of the movable plate is smaller than that of the fixed plate.

Preferably, the circular grooves are symmetrically distributed about the center line of the side wall, and the circular grooves are in sliding connection with the metal elastic sheets.

Preferably, the protruding shaft and the rear cover are vertically distributed, and the protruding shaft and the groove are in clamping connection.

Compared with the prior art, the beneficial effects of the utility model are that: this nut that leakproofness is good adopts combination formula shunting structure to replace traditional integral type structure nut, makes the nut can realize the internal diameter regulation of certain limit to adapt to not unidimensional screw rod and cooperate, the locking back lid of cooperation fastening can avoid the nut to produce and slide, and elastic construction makes the nut more laborsaving when carrying out the dismouting.

1. When the fly leaf contacted with the screw rod, through the effect of slide bar, first spring, fixed column and lateral wall, can make the fly leaf remove to the realization is to the adjustment of nut internal diameter, realizes coordinating the screw rod of different sizes.

2. After the nut is locked with the screw rod through the fixed plate and the movable plate, the thread teeth are tightly matched with the thread grooves in the screw rod under the action of the first spring, loosening can be effectively prevented, and the movable plate can be fixed under the action of the matched rear cover, the metal elastic sheet, the circular groove, the limiting column, the limiting hole, the protruding shaft and the groove, so that the nut is prevented from loosening due to movement of the movable plate.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the base of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the side wall elevation section structure of the present invention;

FIG. 4 is a schematic top view of the base of the present invention;

FIG. 5 is a schematic view of the cross-sectional structure of the side wall of the present invention in a top view;

fig. 6 is a schematic view of the top-view cross-sectional structure of the fixing column of the present invention.

In the figure: 1. a base; 2. sealing the rubber ring; 3. a side wall; 4. fixing a column; 5. a first spring; 6. a slide bar; 7. a movable plate; 8. a fixing plate; 9. thread teeth; 10. a circular groove; 11. a metal spring sheet; 12. a rear cover; 13. a limiting column; 14. a limiting hole; 15. a protruding shaft; 16. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a nut with good sealing performance comprises a base 1, a sealing rubber ring 2, a side wall 3, a fixed column 4, a first spring 5, a sliding rod 6, a movable plate 7, a fixed plate 8, thread teeth 9, a circular groove 10, a metal elastic sheet 11, a rear cover 12, a limiting column 13, a limiting hole 14, a convex shaft 15 and a groove 16, wherein the sealing rubber ring 2 is fixed at the lower end of the base 1, the side wall 3 is fixed at the upper end of the base 1, the fixed column 4 is fixed on the side wall 3, the first spring 5 is fixed in the fixed column 4, the tail end of the first spring 5 is mutually connected with the sliding rod 6, the sliding rod 6 is arranged in the fixed column 4, the sliding rod 6 is fixed on the movable plate 7, the fixed plate 8 is fixed on the side wall 3, the thread teeth 9 are fixed on the movable plate 7 and the fixed plate 8, the circular groove 10 is arranged on the side wall 3, the metal elastic sheet 11 is arranged in the circular, meanwhile, the lower end of the metal elastic sheet 11 is fixed with a limiting column 13, limiting holes 14 of the limiting column 13 are connected with each other, the limiting hole 14 is formed in the side wall 3, a protruding shaft 15 is fixed on the rear cover 12, the protruding shaft 15 is connected with a groove 16, and the groove 16 is formed in the movable plate 7.

The width of the fixed column 4 is greater than the length of the sliding rod 6, the fixed column 4 is in sliding connection with the movable plate 7, when the movable plate 7 is in contact with the screw, if the diameter of the screw is greater than the inner diameter of the movable plate 7, fine adjustment of the inner diameter of the movable plate 7 can be achieved through the sliding effect between the fixed column 4 and the movable plate 7, and the screw and the nut are conveniently and smoothly connected.

Slide bar 6 constitutes elastic mechanism between through first spring 5 and fixed column 4, and be sliding connection between slide bar 6 and the fixed column 4, and slide bar 6 is "T" type structure, when the screw rod diameter is greater than fly leaf 7 internal diameter, extrusion fly leaf 7, thereby make slide bar 6 remove and drive first spring 5 shrink, thereby make fly leaf 7 remove, the realization is to the adjustment of fly leaf 7 internal diameter, and after the cooperation is good, can consolidate the connection between the screw rod through the elastic action of first spring 5, effectively prevent to become flexible.

The movable plate 7 and the fixed plate 8 are concentrically distributed about the central point of the side wall 3, the lower end of the movable plate 7 is of an inclined structure, the inner side diameter of the movable plate 7 is smaller than that of the fixed plate 8, the lower end of the movable plate 7 is of an inclined structure, screws with different diameters can be smoothly matched with the nut, and the fastening effect between the screws and the nut is guaranteed through the broken fixed plate 8.

Circular slot 10 is the symmetric distribution about 3 central lines of lateral wall, and is sliding connection between circular slot 10 and the metal shrapnel 11, when back lid 12 and lateral wall 3 carry out fixed fit, through circular slot 10 and metal shrapnel 11's slip guide effect, can closely cooperate between assurance back lid 12 and the lateral wall 3.

The protruding shaft 15 and the rear cover 12 are vertically distributed, the protruding shaft 15 and the groove 16 are connected in a clamping mode, after the movable plate 7 moves according to the diameter position of the screw, the screw is connected with the diameter of the nut more tightly through the elastic action of the first spring 5, and the protruding shaft 15 and the groove 16 are clamped in a matched mode under the connecting and fixing action between the rear cover 12 and the side wall 3, so that the movable plate 7 is fixed, and the movable plate 7 is prevented from sliding.

The working principle is as follows: when the nut with good sealing performance is used, firstly, the nut is contacted with the screw, when the screw is contacted with the movable plate 7, and when the diameter of the screw is larger than the inner diameter of the movable plate 7, the screw slides into and extrudes the movable plate 7 through the lower end of the movable plate 7, so that the slide rod 6 is driven to slide in the fixed column 4, and the first spring 5 is contracted, so that the movable plate 7 is moved, further the inner diameter of the movable plate 7 is finely adjusted, and the nut and the screw are conveniently matched, as shown in figures 5 and 6, according to the principle, the nut can be matched with the screw within a certain size range, the screw which is matched with the fixed plate 8 to the maximum extent is meshed, when the screw is connected with the nut, the screw is matched with a thread groove on the screw through the thread teeth 9, so that the connection effect of the nut is completed, and at the moment, the movable plate 7 is, the thread teeth 9 on the movable plate 7 are tightly matched with the thread grooves on the screw rod to realize the reinforcing effect, and the screw rod and the nut are more labor-saving and convenient to connect by matching with the elastic action of the first spring 5;

when the screw is completely connected with the nut, the rear cover 12 is pressed to drive the limiting column 13 and the metal elastic sheet 11 to slide in the circular groove 10, and because the metal elastic sheet 11 has certain elasticity, when the limiting column 13 is matched with the limiting hole 14, the limiting column 13 is matched with the limiting hole 14 under the action of the elasticity of the metal elastic sheet 11, so that the rear cover 12 is connected with the side wall 3, at the moment, the convex shaft 15 on the rear cover 12 is clamped with the groove 16 on the movable plate 7 to prevent the movable plate 7 from sliding, thereby fixing the whole device is completed, as shown in figures 1 and 2, a gap between the screw and the nut can be sealed through the sealing rubber ring 2 on the base 1, when disassembly is needed, the limiting column 13 is separated from the limiting hole 14 only by pressing the limiting column 13, the rear cover 12 is pulled to separate the convex shaft 15 from the groove 16, thereby removing the limiting effect, and then the side wall 3 is rotated to separate the screw from the nut, and through the effect of first spring 5, can make the separation process more laborsaving, this is the theory of operation of this nut that the leakproofness is good.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a nut that leakproofness is good, includes base (1), fixed plate (8), circular slot (10) and protruding axle (15), its characterized in that: the lower end of the base (1) is fixed with a sealing rubber ring (2), the upper end of the base (1) is fixed with a side wall (3), the side wall (3) is fixed with a fixed column (4), the fixed column (4) is internally fixed with a first spring (5), the tail end of the first spring (5) is connected with a sliding rod (6), the sliding rod (6) is arranged in the fixed column (4), the sliding rod (6) is fixed on a movable plate (7), a fixed plate (8) is fixed on the side wall (3), the movable plate (7) and the fixed plate (8) are both fixed with thread teeth (9), a circular groove (10) is arranged on the side wall (3), a metal elastic sheet (11) is arranged in the circular groove (10), the metal elastic sheet (11) is fixed on a rear cover (12), the lower end of the metal elastic sheet (11) is fixed with a limiting column (13), and limiting holes (14) of the limiting column (13) are connected with each other, and the limiting hole (14) is arranged on the side wall (3), the convex shaft (15) is fixed on the rear cover (12), the convex shaft (15) is connected with the groove (16), and the groove (16) is arranged on the movable plate (7).

2. The nut of claim 1, wherein: the width of the fixed column (4) is larger than the length of the sliding rod (6), and the fixed column (4) is in sliding connection with the movable plate (7).

3. The nut of claim 1, wherein: the sliding rod (6) and the fixed column (4) form an elastic mechanism through the first spring (5), the sliding rod (6) and the fixed column (4) are in sliding connection, and the sliding rod (6) is of a T-shaped structure.

4. The nut of claim 1, wherein: the movable plate (7) and the fixed plate (8) are concentrically distributed relative to the central point of the side wall (3), the lower end of the movable plate (7) is of an inclined structure, and the diameter of the inner side of the movable plate (7) is smaller than that of the inner side of the fixed plate (8).

5. The nut of claim 1, wherein: the circular grooves (10) are symmetrically distributed about the center line of the side wall (3), and the circular grooves (10) are in sliding connection with the metal elastic sheets (11).

6. The nut of claim 1, wherein: the convex shaft (15) and the rear cover (12) are vertically distributed, and the convex shaft (15) is connected with the groove (16) in a clamping manner.