CN213117089U

CN213117089U - Fastening locknut

Info

Publication number: CN213117089U
Application number: CN202021237792.1U
Authority: CN
Inventors: 吴寿武
Original assignee: Wenzhou Kaian Auto Parts Co ltd
Current assignee: Wenzhou Kaian Auto Parts Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-05-04
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a fastening anti-loose nut related to a nut, which comprises a nut, wherein the middle part of the lower surface of the nut is provided with a groove, the lower surface of the nut is positioned inside the groove and is provided with a fastening gasket, a bolt is connected with the nut through a thread, the bolt longitudinally penetrates through the nut and the fastening gasket, two groups of fixed blocks which are symmetrical up and down are fixedly connected to the side wall of the inner cavity of the through hole on the bolt, a fixed groove which slides with the fixed blocks mutually is formed in the outer surface of the bolt, the through hole is formed in the fixed block, a plurality of threaded holes are formed in the nut, sliding clamping rods are arranged in the inner cavities of the plurality of threaded holes, springs located in the inner cavities of the threaded holes are arranged on the outer walls of the plurality of sliding clamping rods, fixed plates are fixedly connected to the top ends of the plurality of sliding clamping rods, located on the upper surfaces of the springs, and the inner cavities of the upper surfaces of the fixed plates, located in the threaded; the utility model discloses simple structure, the installation and the dismantlement of being convenient for can use repeatedly, have avoided the wasting of resources.

Description

Fastening locknut

Technical Field

The utility model relates to a nut correlation field specifically is a fastening locknut.

Background

The nut is the nut, and the part that is used for fastening together with bolt or screw rod is twisted, and the component that all production manufacturing machinery must use is according to the difference of material, divide into several big types such as carbon steel, stainless steel, non ferrous metal, and the nut is the part that couples together mechanical equipment zonulae occludens, through the screw thread of inboard, equal specification nut and bolt just can link together, and wherein locknut is one of the nut, and it sets up through certain structure, can prevent that this locknut from loosening and dropping from the bolt.

The existing locknut has the problems of difficult installation and screwing, difficult disassembly or impossible disassembly, and the problem of resource waste caused by the incapability of being repeatedly used.

Disclosure of Invention

An object of the utility model is to provide a fastening locknut to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a fastening anti-loose nut comprises a nut, wherein a groove is formed in the middle of the lower surface of the nut, a fastening gasket is arranged on the lower surface of the nut, which is positioned inside the groove, a bolt is connected with the nut in a threaded manner and longitudinally penetrates through the nut and the fastening gasket, two groups of fixed blocks which are symmetrical up and down are fixedly connected on the side wall of an inner cavity of a through hole on the bolt, fixed grooves which slide with the fixed blocks mutually are formed on the outer surface of the bolt, the fixed blocks are provided with through holes, the nut is provided with a plurality of threaded holes, the inner cavities of the plurality of threaded holes are all provided with sliding clamping rods, springs positioned in the inner cavities of the threaded holes are all arranged on the outer wall of the plurality of sliding clamping rods, fixed plates are fixedly connected on the top surfaces of the springs, and fastening screws are connected on the inner cavities of the upper surfaces of the fixed plates, which, and the upper surface of the fastening gasket is provided with a clamping groove which is clamped with the sliding clamping rod.

As a further aspect of the present invention: the nut is located the integrated into one piece on the inner chamber lateral wall of recess and is had a spacing piece, set up the spacing groove with the mutual gliding of spacing piece on the fastening gasket.

As a further aspect of the present invention: the lower surface of the fastening gasket is integrally formed with a plurality of anti-skidding teeth, and the included angle between the anti-skidding teeth and the horizontal plane is 60 degrees.

As a further aspect of the present invention: the screw hole sets up to three altogether, and is three the screw hole is the annular distribution, and adjacent two contained angle between the screw hole equals.

As a further aspect of the present invention: the cross-sectional structure of draw-in groove is the structure of inverse right trapezoid, just the direction of draw-in groove is the same with the screw thread direction of bolt.

As a further aspect of the present invention: the two groups of fixing blocks are arranged into four, and the two through holes are symmetrical left and right and form a group.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the setting of holding screw, under the effect of spring, utilize the cooperation of slip kelly and draw-in groove, can effectual realization to the fixed of nut with dismantle, simple structure, the installation with dismantle conveniently, can use repeatedly, saved the resource, avoided the extravagant condition of resource.

2. Through the setting of fixed block, under the effect of fixed slot, can effectual realization to the fixed of fastening gasket, avoided appearing the relative pivoted condition between fastening gasket and the nut, realize locking not hard up simultaneously, through the setting of stopper, under the effect of spacing groove, can effectually make things convenient for the rotation of fastening gasket, avoided producing the condition that drops between fastening gasket and the nut simultaneously, the practicality is stronger.

3. Through the setting of antiskid tooth, improvement antiskid nature that can be further increases the coefficient of friction between fastening gasket and the work piece, can effectually play skid-proof effect and locking not hard up effect, has avoided the gliding condition to appear in the use, has improved the practicality.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention;

FIG. 4 is a schematic sectional view of the fastening gasket of the present invention;

fig. 5 is a schematic top view of the nut of the present invention;

fig. 6 is a schematic view of the structural connection between the middle fastening pad and the anti-slip teeth of the present invention.

In the figure: 1. a nut; 2. a bolt; 3. fastening a gasket; 4. a limiting block; 5. a limiting groove; 6. a fixed block; 7. fixing grooves; 8. a threaded hole; 9. tightening the screw; 10. a fixing plate; 11. a spring; 12. sliding the clamping rod; 13. a card slot; 14. anti-slip teeth; 15. a groove; 16. and a through hole.

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 to 6, in an embodiment of the present invention, a fastening anti-loose nut includes a nut 1, a groove 15 is formed in a middle portion of a lower surface of the nut 1, a fastening gasket 3 is disposed inside the groove 15 on the lower surface of the nut 1, a bolt 2 is connected to the nut 1 in a threaded manner, the bolt 2 longitudinally penetrates through the nut 1 and the fastening gasket 3, two sets of fixing blocks 6 are fixedly connected to a side wall of an inner cavity of a through hole 16 on the bolt 2, a fixing groove 7 sliding with the fixing block 6 is formed on an outer surface of the bolt 2, the fixing block 6 is provided with the through hole 16, the nut 1 is provided with a plurality of threaded holes 8, inner cavities of the plurality of threaded holes 8 are provided with sliding clamping rods 12, springs 11 disposed in inner cavities of the threaded holes 8 are disposed on outer walls of the plurality of sliding clamping rods 12, top ends of the plurality of sliding clamping rods 12 are fixedly connected, the upper surfaces of the fixing plates 10 are positioned in the inner cavities of the threaded holes 8 and are in threaded connection with fastening screws 9, and the upper surfaces of the fastening gaskets 3 are provided with clamping grooves 13 which are mutually clamped with the sliding clamping rods 12; through holding screw 9, under the effect of spring 11 and slip kelly 12, utilize draw-in groove 13, can effectual realization be to nut 1's fixed, avoided appearing not hard up the condition.

Wherein, a limiting block 4 is integrally formed on the side wall of the inner cavity of the groove 15 on the nut 1, and a limiting groove 5 which slides with the limiting block 4 is arranged on the fastening gasket 3; through the setting of stopper 4, under the effect of spacing groove 5, can effectual convenient fastening gasket 3's rotation, avoided producing the condition that drops between fastening gasket 3 and the nut 1 simultaneously.

The lower surface of the fastening gasket 3 is integrally formed with a plurality of anti-slip teeth 14, and the included angle between the anti-slip teeth 14 and the horizontal plane is 60 degrees; through the setting of antiskid tooth 14, can effectual increase antiskid nature, improve the coefficient of friction of fastening pad 3.

Threaded hole 8 sets up to three altogether, and three threaded hole 8 is the annular and distributes, and the contained angle between two adjacent threaded hole 8 equals, through setting up three threaded hole 8, can the fixed steadiness of effectual improvement, has avoided appearing not hard up condition in the use.

The section structure of the clamping groove 13 is an inverted right-angled trapezoid structure, and the direction of the clamping groove 13 is the same as the thread direction of the bolt 2; the clamping groove 13 with the inverted trapezoid structure can be used for fixing and using the sliding clamping rod 12 conveniently.

The two groups of fixing blocks 6 are four in number, and two through holes 16 which are symmetrical left and right are a group; through the setting of four fixed blocks 6, can further improvement fastening pad 3's stability and intensity.

The utility model discloses a theory of operation is: when in use, firstly, the fastening screw 9 is unscrewed by an external tool, the sliding clamping rod 12 moves upwards and contracts to the inside of the threaded hole 8 under the elastic action of the spring 11, then the bolt 2 is inserted into a workpiece to be fixed, then the nut 1 is connected with the bolt 2, the fixed block 6 on the fastening gasket 3 is aligned with the fixed groove 7 on the bolt 2, then the nut 1 is screwed by the external tool, the nut 1 rotates along the limiting groove 5 under the action of the limiting block 4, further the nut 1 is driven to move downwards along the bolt 2, meanwhile, the fastening gasket 3 moves downwards along the fixed groove 7 under the action of the fixed block 6, the fastening gasket 3 can be effectively fixed under the action of the fixed groove 7 through the arrangement of the fixed block 6, the relative rotation between the fastening gasket 3 and the nut 1 is avoided, and further the fastening gasket 3 is contacted with the workpiece, then the nut 1 is rotated, the sliding clamping rod 12 rotates along the clamping groove 13 on the fastening gasket 3 under the action of the spring 11, when the nut 1 is screwed to a fastening state, the fastening screw 9 is screwed by an external tool, and then the fixing plate 10 is driven to move downwards, the spring 11 is driven to compress, the sliding clamping rod 12 enters the clamping groove 13, the nut 1 is fixed, under the action of the spring 11, the sliding clamping rod 12 is matched with the clamping groove 13 through the arrangement of the fastening screw 9, the nut 1 can be effectively fixed and loosened, the structure is simple, the operation is convenient, the installation and the disassembly are convenient, the repeated use is realized, the resources are saved, the condition of resource waste is avoided, further, the workpiece is tightly fixed between the bolt 2 and the nut 1, and the anti-skid performance can be further improved by the arrangement of the anti-skid teeth 14, avoided appearing gliding condition in the use, the practicality is stronger, when needs are dismantled, will tighten the screw 9 through external tool and unscrew, under the elastic action of spring 11, drive slip kelly 12 rebound and with draw-in groove 13 between the separation, and then the antiport nut 1 makes and separates between nut 1 and the bolt 2, accomplishes the dismantlement promptly, the groove seat adds singly convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A fastening locknut comprising a nut (1), characterized in that: a groove (15) is formed in the middle of the lower surface of the nut (1), a fastening gasket (3) is arranged on the lower surface of the nut (1) and located inside the groove (15), a bolt (2) is connected to the nut (1) in a threaded manner, the bolt (2) longitudinally penetrates through the nut (1) and the fastening gasket (3), two groups of fixing blocks (6) which are symmetrical up and down are fixedly connected to the side wall of an inner cavity of a through hole (16) on the bolt (2), a fixing groove (7) which slides with the fixing blocks (6) is formed in the outer surface of the bolt (2), a through hole (16) is formed in the fixing block (6), a plurality of threaded holes (8) are formed in the nut (1), sliding clamping rods (12) are arranged in the inner cavities of the plurality of threaded holes (8), and springs (11) located in the inner cavities of the threaded holes (8) are arranged on the outer walls of the plurality of sliding clamping, a plurality of the top of slip kelly (12) is located the equal fixedly connected with fixed plate of upper surface (10) of spring (11), a plurality of the equal threaded connection of inner chamber that the upper surface of fixed plate (10) is located screw hole (8) has holding screw (9), draw-in groove (13) with the mutual block of slip kelly (12) are seted up to the upper surface of fastening pad (3).

2. The fastening locknut of claim 1, wherein: the nut (1) is provided with a limiting block (4) integrally formed on the side wall of the inner cavity of the groove (15), and the fastening gasket (3) is provided with a limiting groove (5) which slides with the limiting block (4).

3. The fastening locknut of claim 1, wherein: the lower surface of the fastening gasket (3) is integrally formed with a plurality of anti-skidding teeth (14), and the included angle between the anti-skidding teeth (14) and the horizontal plane is 60 degrees.

4. The fastening locknut of claim 1, wherein: threaded hole (8) set up to three altogether, and three threaded hole (8) are the annular and distribute, adjacent two contained angle between threaded hole (8) equals.

5. The fastening locknut of claim 1, wherein: the cross-sectional structure of draw-in groove (13) is the inverted right trapezoid structure, just the direction of draw-in groove (13) is the same with the screw thread direction of bolt (2).

6. The fastening locknut of claim 1, wherein: the two groups of fixing blocks (6) are four in number, and the two through holes (16) which are symmetrical left and right are a group.