CN219388394U

CN219388394U - Limiting nut

Info

Publication number: CN219388394U
Application number: CN202320339057.9U
Authority: CN
Inventors: 王冲; 刘士涛; 赵立军
Original assignee: Jize County Risheng Fastener Co ltd
Current assignee: Jize County Risheng Fastener Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-07-21
Anticipated expiration: 2033-02-28

Abstract

The utility model relates to a limit nut, which comprises a nut body, wherein a screw is connected to the inner thread of the nut body, a clamping mechanism for stabilizing the screw is arranged on the lower surface of the nut body, a positioning mechanism for preventing the screw from sliding is arranged in the nut body, the clamping mechanism comprises a mounting barrel fixed on the lower surface of the nut body, a sleeve is sleeved on the outer side of the mounting barrel, a mounting block in threaded connection with the screw is fixed on the lower surface of the sleeve, and a stabilizing component and a resetting component are fixed on one side, opposite to the nut body, of the mounting block. This stop nut promotes two clamp plates subtend removal through two inserted bars subtend removal for the contact of the extrusion piece and the screw rod of clamp plate opposite side extrudees the screw rod simultaneously, thereby is difficult for appearing not hard up phenomenon after the screw rod nut body is twisted in the effectual guarantee through the left and right sides contact of two extrusion pieces and screw rod.

Description

Limiting nut

Technical Field

The utility model relates to the technical field of nuts, in particular to a limit nut.

Background

The nut is a part which is screwed together with the bolt or the screw rod and used for fastening, and all components which are required by the production and manufacturing machinery are divided into carbon steel, stainless steel, nonferrous metals such as copper and the like according to different materials, and the nut is a part which is screwed together with the bolt or the screw rod and used for fastening, and all components which are required by the production and manufacturing machinery are common nuts with national standards, english standards, american standards and Japanese standards.

At present, various limit nuts exist in the market, but the defect of low practicability generally exists, the limit function is realized by arranging a rubber ring and the like in the nut for the limit nut in the prior market, but the limit method is difficult to screw the nut again, a certain resistance exists, the limit effect of the nut is often greatly reduced after the nut is used for a period of time, a gasket is usually placed on the upper surface of the nut to ensure that the nut and the screw are not slipped, and the gasket is easy to slip when in use due to the smooth surface of the gasket and easy to drop.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the limiting nut which has the advantages of high practicability and the like, and solves the problem that the nut is difficult to screw in.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the limit nut comprises a nut body, wherein a screw is connected to the inner thread of the nut body, a clamping mechanism for stabilizing the screw is arranged on the lower surface of the nut body, and a positioning mechanism for preventing the screw from sliding is arranged in the nut body;

the clamping mechanism comprises a mounting barrel fixed on the lower surface of the nut body, a sleeve is sleeved on the outer side of the mounting barrel, a mounting block in threaded connection with a screw rod is fixed on the lower surface of the sleeve, and a stabilizing component and a resetting component are fixed on one side, opposite to the nut body, of the mounting block;

the stabilizing component comprises two mounting seats which are respectively fixed on one side of the mounting block opposite to the nut body, driving rods are hinged to the inside of each of the two mounting seats on the left side and the two mounting seats on the right side through hinge shafts, inserting rods are hinged to one ends, far away from the mounting seats, of each of the two driving rods on the left side and the two driving rods on the right side through hinge shafts, and pressing plates are fixed to one side, opposite to the two inserting rods, of each of the two inserting rods;

the reset component comprises two installation bodies which are respectively fixed on one side of the installation block, which is opposite to the nut body, wherein two left sides are respectively fixed on the two opposite sides of the installation bodies, which are opposite to the two right sides, respectively, a first spring is fixed on each of inner cavities of the installation bodies, respectively, two left sides are respectively, each of the opposite sides of the first spring, respectively, two right sides are respectively, a baffle is fixed on each of the opposite sides of the first spring, respectively, two left sides are respectively, each of the baffle, respectively, and a shaft lever is respectively fixed between the opposite sides of each of the baffle and the two right sides, respectively, and each of the left sides and the right sides of each shaft lever are respectively, fixedly provided with a stable sleeve.

Further, two limiting through holes for the two inserted bars to move left and right and in clearance fit with the two inserted bars are respectively formed in the shaft rods.

Further, two the inserted bar is respectively movable in the inside of two firm covers in left side and two firm covers in right side, and two opposite one ends of inserted bar run through two firm covers in left side and two firm covers in right side respectively to extend to two opposite one sides of two middle firm covers.

Further, one side opposite to the two baffles is fixed with an extrusion block, and the extrusion block is a rubber block.

Further, positioning mechanism is including seting up at the inside two mounting holes of nut body, two the inside of mounting hole all is fixed with the installation cylinder, two the diapire of installation cylinder inner chamber all is fixed with the second spring, the upper surface of second spring all is fixed with the plectane, two the upper surface of plectane is fixed with the connecting rod, two the top of connecting rod is fixed with the gasket.

Further, a rotating hole for the screw rod to rotate and be in clearance fit with the screw rod is formed in the gasket, and the mounting cylinder rotates to be a cylinder with a hollow inside.

Further, round holes for the connecting rods to move up and down are formed in the top walls of the inner cavities of the two mounting columns, and the inner diameter of each round hole is smaller than the outer diameter of the circular plate.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this stop nut promotes two clamp plates subtend removal through two inserted bars subtend removal for the contact of the extrusion piece and the screw rod of clamp plate opposite side extrudees the screw rod simultaneously, thereby is difficult for appearing not hard up phenomenon after the screw rod nut body is twisted in the effectual guarantee through the left and right sides contact of two extrusion pieces and screw rod.

2. This stop nut, when the upper surface contact through screw rod and gasket, can push down the gasket, the gasket downwardly moving promotes the connecting rod downwardly moving to effectual solution when installing, the gasket slides easily, leads to the problem that the gasket dropped, avoids screw rod and nut body to appear the condition of smooth silk simultaneously.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a clamping mechanism according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure A in FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of a positioning mechanism according to the present utility model.

In the figure: 1 nut body, 2 screw rods, 3 clamping mechanisms, 301 installation barrels, 302 sleeves, 303 installation blocks, 304 installation seats, 305 driving rods, 306 inserted bars, 307 installation bodies, 308 first springs, 309 baffles, 310 shaft rods, 311 stabilizing sleeves, 312 pressing plates, 4 positioning mechanisms, 401 installation holes, 402 installation columns, 403 second springs, 404 circular plates, 405 connecting rods and 406 gaskets.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a limit nut in this embodiment includes a nut body 1, a screw rod 2 is screwed in the nut body 1, a clamping mechanism 3 for fixing the screw rod 2 is disposed on the lower surface of the nut body 1, and a positioning mechanism 4 for preventing the screw rod 2 from sliding is disposed in the nut body 1.

Referring to fig. 2-3, in order to play a limiting role, the clamping mechanism 3 in this embodiment includes a mounting cylinder 301 fixed on the lower surface of the nut body 1, a sleeve 302 is sleeved on the outer side of the mounting cylinder 301, the inner diameter of the sleeve 302 is matched with the outer diameter of the mounting cylinder 301, a mounting block 303 in threaded connection with the screw 2 is fixed on the lower surface of the sleeve 302, a threaded through hole for the screw 2 to rotate and in threaded fit with the mounting block 303 is provided in the mounting block 303, and a stabilizing component and a resetting component are fixed on one side of the mounting block 303 opposite to the nut body 1.

The stabilizing assembly comprises two mounting seats 304 which are respectively fixed on one side of the mounting block 303 opposite to the nut body 1, driving rods 305 are hinged to the inner parts of the two mounting seats 304 on the left side and the two mounting seats 304 on the right side through hinge shafts, inserting rods 306 are hinged to one ends, far away from the mounting seats 304, of the two driving rods 305 on the left side and the two driving rods 305 on the right side through hinge shafts, and pressing plates 312 are fixed to one sides, opposite to the two inserting rods 306, of the two fixing seats.

It should be noted that, when the distance between the two driving rods 305 on the left and right sides and the end of the two mounting bases 304 is shortened, the two inserting rods 306 and the pressing plate 312 are pushed to move in opposite directions.

The reset component comprises two installation bodies 307 which are respectively fixed on one side of the installation block 303 opposite to the nut body 1, the installation bodies 307 are cylindrical bodies with hollow interiors, first springs 308 are respectively fixed on inner cavities of the two installation bodies 307 on the left side and the two installation bodies 307 on the right side, baffle plates 309 are respectively fixed on one side opposite to the two first springs 308 on the left side, moving ports for the shaft rods 310 to move up and down and in clearance fit with the shaft rods are formed in the installation bodies 307, the inner diameters of the moving ports are smaller than the outer diameters of the baffle plates 309, shaft rods 310 are respectively fixed between one side opposite to the two baffle plates 309 on the left side and one side opposite to the two baffle plates 309 on the right side, and stabilizing sleeves 311 are respectively fixed on the left side and the right side of the two shaft rods 310.

It should be noted that, when the screw 2 is screwed out, the mounting block 303 is pushed to move downward, and the two first springs 308 rebound to lengthen the distance between the nut body 1 and the mounting block 303, i.e. the distance between the two driving rods 305 on the left and right sides and the end connected to the two mounting seats 304 is lengthened accordingly, and simultaneously the two inserting rods 306 and the pressing plate 312 are driven to move back, i.e. the two pressing blocks are separated from the screw 2.

Two inserted bars 306 are respectively movable in the left two stable sleeves 311 and the right two stable sleeves 311, and the opposite ends of the two inserted bars 306 respectively penetrate through the left two stable sleeves 311 and the right two stable sleeves 311 and extend to the opposite sides of the two middle two stable sleeves 311, the two inserted bars 306 are respectively provided with limiting through holes for the two inserted bars 306 to move left and right, and in clearance fit with the limiting through holes, the opposite sides of the two baffle plates 309 are respectively fixed with extrusion blocks, and the extrusion blocks are rubber blocks.

Therefore, the two extrusion blocks of the stabilizing mechanism 3 are contacted with the left side and the right side of the screw rod 2, so that the loosening phenomenon is not easy to occur after the screw rod 2 is screwed into the nut body 1.

Referring to fig. 4, in order to position the spacer 406, the positioning mechanism 4 in this embodiment includes two mounting holes 401 formed inside the nut body 1, the inner diameters of the mounting holes 401 are adapted to the outer diameters of the mounting columns 402, the mounting columns 402 are fixed inside the two mounting holes 401, the second springs 403 are fixed on the bottom walls of the inner cavities of the two mounting columns 402, circular plates 404 are fixed on the upper surfaces of the second springs 403, connecting rods 405 are fixed on the upper surfaces of the two circular plates 404, the spacers 406 are fixed on the top ends of the two connecting rods 405, and the spacers 406 are rubber sheets.

It should be noted that, when the screw 2 presses down the spacer 406, the spacer 406 may be deformed, and after the screw 2 is separated from the spacer 406, the spacer 406 may rebound, and the thickness of the spacer 406 may be increased by bonding.

The gasket 406 is provided with a rotation hole for the screw rod 2 to rotate and be in clearance fit with the screw rod, the mounting columns 402 rotate into a cylinder with hollow inside, the top walls of the inner cavities of the two mounting columns 402 are provided with round holes for the connecting rods 405 to move up and down, and the inner diameter of the round holes is smaller than the outer diameter of the circular plate 404.

Thus, when the positioning mechanism 4 contacts with the upper surface of the spacer 406 through the screw 2, the spacer 406 is pressed down, and the spacer 406 moves downward to push the connecting rod 405 to move downward, that is, the spacer 406 is positioned above the nut body 1 through the connecting rod 405.

The working principle of the embodiment is as follows:

(1) When the nut is used, the screw rod 2 is firstly inserted from the upper surface of the nut body 1, then the screw rod 2 is screwed, the screw rod 2 is extended into the nut body 1 through the action of threaded connection, namely, when the screw rod 2 is in contact with the upper surface of the gasket 406, the gasket 406 is pressed down, the gasket 406 moves downwards to push the connecting rod 405 to move downwards, at the moment, the connecting rod 405 moves downwards to drive the circular plate 404 to move downwards, namely, the circular plate 404 compresses the second spring 403, the connecting rod 405 moves downwards until the lower surface of the gasket 406 is in contact with the upper surface of the nut body 1, and at the moment, the screw rod 2 is continuously rotated.

(2) After the screw 2 presses down the spacer 406, the screw 2 continues to rotate, the screw 2 drives the mounting block 303 to move upwards under the action of the threaded connection, and meanwhile, the sleeve 302 moves upwards along with the screw 2, namely, the distance between one end of the driving rod 305 connected with the mounting seat 304 is shortened, namely, the two driving rods 305 on the left side and the right side respectively push the inserted rods 306 on the right side to move oppositely, meanwhile, the two mounting bodies 307 on the left side and the two mounting bodies 307 on the right side between the nut body 1 and the opposite side of the mounting block 303 are simultaneously pressed down, namely, the baffle 309 on the upper end and the lower end are pushed by the shaft rod 310, the two first springs 308 are simultaneously compressed by the two baffles 309, and at the moment, the two inserted rods 306 move oppositely to push the two pressing plates 312 to move oppositely, so that the pressing blocks on the opposite sides of the pressing plates 312 are contacted with the screw 2, and meanwhile, the screw 2 is extruded, and the phenomenon of loosening after the nut body 1 of the screw 2 is effectively ensured to be screwed in through the two pressing blocks.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. A limit nut, includes nut body (1), its characterized in that: the nut comprises a nut body (1), wherein a screw (2) is connected with the nut body (1) through internal threads, a clamping mechanism (3) for stabilizing the screw (2) is arranged on the lower surface of the nut body (1), and a positioning mechanism (4) for preventing the screw (2) from slipping is arranged in the nut body (1);

the clamping mechanism (3) comprises a mounting cylinder (301) fixed on the lower surface of the nut body (1), a sleeve (302) is sleeved on the outer side of the mounting cylinder (301), a mounting block (303) in threaded connection with the screw (2) is fixed on the lower surface of the sleeve (302), and a stabilizing component and a resetting component are fixed on one side, opposite to the nut body (1), of the mounting block (303);

the stabilizing assembly comprises two mounting seats (304) which are respectively fixed on one side of the mounting block (303) opposite to the nut body (1), driving rods (305) are hinged to the inside of each of the two mounting seats (304) on the left side and the two mounting seats (304) on the right side through hinge shafts, inserting rods (306) are hinged to one ends, far away from the mounting seats (304), of each of the two driving rods (305) on the left side and the two driving rods (305) on the right side through hinge shafts, and pressing plates (312) are fixed on one sides, opposite to the inserting rods (306);

the reset assembly comprises two installation bodies (307) which are respectively fixed on one side of the installation block (303) opposite to the nut body (1), first springs (308) are respectively fixed on inner cavities of the installation bodies (307) on the left side and the installation bodies (307) on the right side, baffle plates (309) are respectively fixed on one side, opposite to the first springs (308), of the first springs (308) on the left side, shaft rods (310) are respectively fixed between one side, opposite to the baffle plates (309) on the left side, of the baffle plates (309) on the right side, and stabilizing sleeves (311) are respectively fixed on the left side and the right side of the shaft rods (310).

2. A spacing nut according to claim 1, characterized in that: limiting through holes for the two inserted bars (306) to move left and right and in clearance fit with the inserted bars are respectively formed in the two shaft rods (310).

3. A spacing nut according to claim 1, characterized in that: the two inserting rods (306) respectively move inside the left two stabilizing sleeves (311) and the right two stabilizing sleeves (311), and opposite ends of the two inserting rods (306) respectively penetrate through the left two stabilizing sleeves (311) and the right two stabilizing sleeves (311) and extend to opposite sides of the two middle two stabilizing sleeves (311).

4. A spacing nut according to claim 1, characterized in that: the opposite sides of the two baffles (309) are respectively fixed with an extrusion block, and the extrusion blocks are rubber blocks.

5. A spacing nut according to claim 1, characterized in that: the positioning mechanism (4) comprises two mounting holes (401) formed in the nut body (1), mounting columns (402) are fixed in the two mounting holes (401), second springs (403) are fixed on the bottom wall of the inner cavity of each mounting column (402), circular plates (404) are fixed on the upper surfaces of the second springs (403), connecting rods (405) are fixed on the upper surfaces of the circular plates (404), and gaskets (406) are fixed on the top ends of the two connecting rods (405).

6. A spacing nut according to claim 5, characterized in that: the inside of the gasket (406) is provided with a rotating hole for the screw (2) to rotate and be in clearance fit with the screw, and the mounting column (402) rotates to be a cylinder with a hollow inside.

7. A spacing nut according to claim 5, characterized in that: round holes for the connecting rods (405) to move up and down are formed in the top walls of the inner cavities of the two mounting columns (402), and the inner diameter of each round hole is smaller than the outer diameter of the circular plate (404).