Anti-loosening fixing piece

Abstract

The utility model discloses an anti-loosening fixing part which comprises a threaded fixing part, a hexagonal head is arranged at the top of the threaded fixing part, a hexagonal nut is arranged outside the threaded fixing part, notches are formed in the two sides of the lower end of the surface of the threaded fixing part, locking clamping pieces are arranged in the notches, and the locking clamping pieces are connected with the hexagonal head. An upper positioning block and a lower adjusting block are arranged at the upper end and the lower end of the locking clamping piece respectively, and fastening screws are arranged in the upper positioning block and the lower adjusting block. The locking clamping piece is arranged in the notch, expansion of the locking clamping piece is adjusted through the fastening screw, when the fastening screw is tightened, the locking clamping piece expands outwards, the expansion position is larger than the inner diameter of the nut, and therefore strong friction force and bond stress are generated, and the position of the nut is locked and fixed. The fixing piece effectively resists the action of external force, so that the fixing piece has a better anti-loosening effect, and the service life of the fixing piece is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field related to fixing part, concretely is a kind of anti-loose fixing part. BACKGROUND

[0002] Fixing part is also called fastener, mainly used to connect, fix and close object, to keep its stability and integrity, fastener is also called standard part in market, it is the general term of a kind of mechanical parts when two or more than two parts are fastened and connected to become a whole, its characteristics are variety and specification, performance use each is different, and the degree of standardization, serialization, generalization is extremely high, fastener is the most widely used mechanical basic piece, and demand is very large.

[0003] There are still some disadvantages in the prior art for fixing part in the process of use, the fastening effect of traditional fixing part is poor, especially the fixing part with nut, the nut is prone to looseness under the condition of external interference or vibration, and the firmness of the fixing part is reduced. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of anti-loose fixing part to solve the fastening effect of traditional fixing part in the above background art, especially the fixing part with nut, the nut is prone to looseness under the condition of external interference or vibration, and the firmness of the fixing part is reduced.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anti-loose fixing part, including threaded fixing part, the top of the threaded fixing part is equipped with hexagonal head, the outside of the threaded fixing part is equipped with hexagonal nut, the lower end of the surface of the threaded fixing part is equipped with slot on both sides, the inside of the slot is equipped with locking card, the position of the upper and lower ends of the locking card is equipped with upper positioning block and lower adjusting block respectively, the inside of the upper positioning block and lower adjusting block is equipped with fastening screw, the central position below the inside of the threaded fixing part is equipped with fastening screw hole.

[0006] In further embodiments, the threaded fixing part is provided in a cylindrical shape.

[0007] In further embodiments, the locking card and the slot are connected by sliding, and the shape of the locking card is provided in a triangular structure, and the surface of the locking card is provided with a plurality of tooth-shaped protrusions.

[0008] In further embodiments, the upper positioning block and the threaded fixing part are connected by glueing, and the lower adjusting block and the threaded fixing part are connected by sliding.

[0009] In further embodiments, the upper positioning block and the lower adjusting block are both connected to the locking card by welding, and the cross section of the upper positioning block and the lower adjusting block is provided in a circular structure.

[0010] In further embodiments, the fastening screw is connected with the upper positioning block through sliding connection, and the fastening screw is connected with the lower adjusting block through threaded fixed connection.

[0011] Compared with the prior art, the utility model has the advantages that: the locking card is arranged in the notch, and the expansion of the locking card is adjusted by the fastening screw; when the fastening screw is tightened, the locking card expands outward, and the expanded position is larger than the inner diameter of the nut, thereby generating strong friction and gripping force, locking and fixing the position of the nut, effectively resisting external force, making the fixing member have good anti-loosening effect, prolonging the service life of the fixing member, and the locking principle is simple and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic diagram of the anti-loosening fixing member of the utility model;

[0013] Figure 2 It is a split structure schematic diagram of the anti-loosening fixing member of the utility model;

[0014] Figure 3 It is a cross-section structure schematic diagram of the anti-loosening fixing member of the utility model;

[0015] Figure 4 It is an expansion structure schematic diagram of the locking card of the utility model;

[0016] Figure 5 It is a bottom structure schematic diagram of the anti-loosening fixing member of the utility model;

[0017] Figure 6 It is a bottom structure schematic diagram of the locking card of the utility model.

[0018] In the drawing: 1, hexagonal head; 2, threaded fixing member; 3, hexagonal nut; 4, fastening screw; 5, upper positioning block; 6, locking card; 7, lower adjusting block; 8, notch; 9, fastening screw hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] Please refer to Figures 1-6The utility model provides an embodiment: a kind of anti-loosening fixing piece, including threaded fastener 2, threaded fastener 2 is equipped as cylindrical, the top of threaded fastener 2 is equipped with hexagonal head 1, the outside of threaded fastener 2 is equipped with hexagon nut 3, the lower end of the surface of threaded fastener 2 is equipped with slot 8 on both sides, the inside of slot 8 is equipped with locking card 6, the position of the upper and lower end of locking card 6 is equipped with upper locating block 5 and lower adjusting block 7 respectively, the inside of upper locating block 5 and lower adjusting block 7 is equipped with fastening screw 4, fastening screw 4 is connected by sliding with upper locating block 5, and fastening screw 4 is fixedly connected by thread with lower adjusting block 7, and fastening screw 4 can be made with upper locating block 5 coordinated operation by sliding connection, the lower center position of the inside of threaded fastener 2 is equipped with fastening screw hole 9;By threaded fastener 2 for part fixing, by hexagonal head 1 for the top position of threaded fastener 2 and part connection is sealed and fixed, by hexagon nut 3 for the bottom position of threaded fastener 2 and part connection is fixed, by slot 8 for locking card 6 hidden installation, by locking card 6 for increasing the outer diameter of threaded fastener 2, so that the installation position of hexagon nut 3 is locked and fixed, by upper locating block 5 and lower adjusting block 7 for fastening screw 4 installation, by fastening screw 4 for the position of locking card 6 is adjusted.

[0021] Locking card 6 is connected by sliding with slot 8, and the shape of locking card 6 is equipped as triangular structure, and the surface of locking card 6 is equipped with several dentate protrusions, and locking card 6 is adjusted by sliding connection.

[0022] Upper locating block 5 is connected by gluing adhesion with threaded fastener 2, and lower adjusting block 7 is connected by sliding with threaded fastener 2, and the installation position of upper locating block 5 is fixed by gluing adhesion.

[0023] Upper locating block 5 and lower adjusting block 7 are all connected by welding with locking card 6, and the section of upper locating block 5 and lower adjusting block 7 is all equipped as circular structure, and the firmness between upper locating block 5 and lower adjusting block 7 and locking card 6 is increased by welding connection.

[0024] Working principle: when using, threaded fastener 2 is installed on two parts needing to be connected, and hexagon nut 3 is tightened, part is fixed, then fastening screw 4 is tightened, the inner end of fastening screw 4 is connected with fastening screw hole 9, locking card 6 is expanded outward from slot 8 simultaneously, the friction and gripping force of hexagon nut 3 are increased, the firmness of threaded fastener 2 is increased, and hexagon nut 3 can be prevented from loosening.

[0025] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. Anti-loosening fastener comprising a threaded fastener (2), characterized in that: The top of the threaded fixing part (2) is provided with a hexagonal head (1), the outside of the threaded fixing part (2) is provided with a hexagonal nut (3), the lower end of the surface of the threaded fixing part (2) is provided with a notch (8) on both sides, the inside of the notch (8) is provided with a locking card (6), the upper and lower ends of the locking card (6) are respectively provided with an upper positioning block (5) and a lower adjusting block (7), the inside of the upper positioning block (5) and the lower adjusting block (7) is provided with a fastening screw (4), and the lower center position of the inside of the threaded fixing part (2) is provided with a fastening screw hole (9).

2. The anti-loosening fastener according to claim 1, wherein: The threaded fixing part (2) is cylindrical.

3. The anti-loosening fastener according to claim 1, wherein: The locking card (6) and the notch (8) are connected through sliding, the shape of the locking card (6) is triangular structure, and the surface of the locking card (6) is provided with a plurality of tooth-shaped protrusions.

4. The anti-loosening fastener according to claim 1, wherein: The upper positioning block (5) and the threaded fixing part (2) are connected through glue coating and adhesion, and the lower adjusting block (7) and the threaded fixing part (2) are connected through sliding.

5. The anti-loosening fastener according to claim 1, wherein: The upper positioning block (5) and the lower adjusting block (7) are connected with the locking card (6) through welding, and the cross sections of the upper positioning block (5) and the lower adjusting block (7) are circular structures.

6. The anti-loosening fastener according to claim 1, wherein: The fastening screw (4) and the upper positioning block (5) are connected through sliding, and the fastening screw (4) and the lower adjusting block (7) are connected through threaded fixing.

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