CN217234091U

CN217234091U - Anti-loosening washer for nut

Info

Publication number: CN217234091U
Application number: CN202220263960.7U
Authority: CN
Inventors: 郑兵成; 秦庆霖
Original assignee: Hubei Jiutian Locomotive Parts Co ltd
Current assignee: Hubei Jiutian Locomotive Parts Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-08-19
Anticipated expiration: 2032-02-09

Abstract

The utility model discloses a lockwasher of a nut, relating to the technical field of locknut, comprising a hexagon nut, a lockunit and a protection unit; the upper side of the hexagonal nut is provided with a protection unit; locking unit includes gasket one, circular port one, arc fixed block, joint piece, gasket two, circular port two and joint strip, hexagon nut's upside is equipped with gasket one, circular port one has been seted up at the upper end center of gasket one, the upper end of gasket one is located the arc fixed block that the outside of circular port one is equipped with six circumference arrays, the lower extreme of gasket one is located hexagon nut's the outside and is equipped with the joint piece of six circumference arrays, and the outer terminal surface of the inner laminating hexagon nut of joint piece, and its structural design is comparatively firm to the locking measure of nut, is difficult for leading to the not hard up of structure after long-time use, and targets in place relatively to the safeguard measure of bolt, is difficult for leading to the bolt to receive the corruption and damage.

Description

Anti-loosening washer for nut

Technical Field

The utility model relates to a nut locking technical field specifically is a packing ring is used in locking of nut.

Background

The traditional washer works independently through a single-piece gasket, and the washer mainly relies on friction force to achieve the anti-loosening effect. The novel gasket is composed of two pieces, and the unique embedded structure changes the mode that the traditional gasket mainly achieves anti-loosening through friction force, but adopts the international most advanced anti-loosening technology and achieves double effects of anti-loosening and tightening by utilizing the tension between the two gaskets.

The patent with publication number CN210769783U in the prior art discloses a nut anti-loose composite washer, which comprises a washer main body, wherein a first through hole for inserting a bolt is formed in the middle of the washer main body, the side part of the washer main body is bent upwards to form an insertion piece which is inserted into an insertion groove formed in a mounting plate matched with the washer main body, and the side part of the washer main body is bent downwards to form a limiting piece which is used for clamping a nut and plays a role in stopping rotation of the nut; and a second through hole which is correspondingly arranged with the first through hole and is used for bolt insertion is formed in the mounting plate matched with the gasket main body.

The anti-loosening measure of the nut is not stable enough due to the structural design, the structure is easy to loosen after the nut is used for a long time, the bolt is easy to corrode and damage due to the fact that the bolt is not in place due to the protection measure of the bolt, and therefore the anti-loosening washer of the nut is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a packing ring for locking of nut, its structural design is comparatively firm to the locking measure of nut, is difficult for leading to the not hard up of structure after long-time use, and targets in place to the safeguard measure of bolt relatively, is difficult for leading to the bolt to receive to corrode and damage, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a washer for preventing loosening of a nut comprises a hexagonal nut, a loosening prevention unit and a protection unit;

hexagonal nut: is provided with a protection unit;

an anti-loosening unit: include gasket one, circular port one, arc fixed block, joint piece, gasket two, circular port two and joint strip, hexagon nut's upside is equipped with gasket one, circular port one has been seted up at gasket one's upper end center, the outside that the upper end of gasket one is located circular port one is equipped with the arc fixed block of six circumference arrays, the outside that the lower extreme of gasket one is located hexagon nut is equipped with the joint piece of six circumference arrays, and the outer terminal surface of the inner laminating hexagon nut of joint piece, the upper end of six arc fixed blocks is equipped with gasket two, circular port two that corresponds circular port one is seted up at the upper end center of gasket two, the lower extreme of gasket two is equipped with the joint strip of six circumference arrays, and the position of joint strip corresponds the space between the six arc fixed blocks.

Use hexagon nut to install as connection structure's partly, when locking, with six of the joint piece joint hexagon nut of a gasket lower extreme, prevent a gasket activity, then insert the joint strip card of two lower extremes of gasket into space department between the arc fixed block of a gasket upper end, through the joint between gasket one and the gasket two, the locking nature of reinforcing structure inserts reinforced structure through circular port one and circular port two.

Further, locking unit still includes reinforcement strip and fan-shaped piece, the upper end of second gasket is located the outside of circular port second and is equipped with the reinforcement strip that is not less than sixteen of circumference array, the upper end of second gasket is located and is equipped with the fan-shaped piece between two adjacent reinforcement strips. After the reinforcing structure is inserted, the reinforcing strip can increase the force which can be applied by the structure under the condition of stress, and the fan-shaped piece is used for reinforcing the structure, so that the service life is prolonged.

Further, the protection unit includes L type reed, hexagonal stationary blade and circular baffle, the upper end outside of gasket two is equipped with the L type reed of six circumference arrays, and the upper end of the relative one end difference fixed connection hexagonal stationary blade of six L type reeds. The position of the hexagonal fixing piece is fixed by the L-shaped reed, the hexagonal fixing piece is clamped after the reinforcing structure is inserted, and the circular baffle is used for covering to prevent liquid from corroding the connecting structure.

Furthermore, the clamping device further comprises a triangular wedge block, wherein the triangular wedge block is arranged at the position of a gap between the arc-shaped fixing block and the clamping strip, and six triangular wedge blocks are arranged. After the arc-shaped fixing block and the clamping strip are clamped, the triangular wedge block is inserted into a gap between the arc-shaped fixing block and the clamping strip, and the matching tightness of the structure is improved.

Further, still include the strengthening rib, the lower extreme of gasket one is located the contained angle department between the joint piece and is equipped with the strengthening rib, and the strengthening rib is equipped with six. The strengthening rib increases the joint strength of joint piece, prevents the unexpected fracture of joint piece.

Further, still include hexagonal fixture block and hexagon socket head cap screw, the lower extreme center of circular baffle is equipped with hexagonal fixture block, hexagon nut's inner wall threaded connection hexagon socket head cap screw. Insert circular port one and circular port two with hexagon socket head cap screw to threaded connection hexagon nut uses the hexagonal fixture block to fix circular baffle at hexagonal stationary blade upside after the installation finishes, promotes the holistic protectiveness of structure.

Compared with the prior art, the beneficial effects of the utility model are that: the anti-loosening washer for the nut has the following advantages:

1. the anti-loosening washer for the nut is provided with multiple anti-loosening structures, so that after the nut is connected by the bolt, the connection tightness between the structures is improved, and the influence of vibration on the structures can be reduced;

2. the anti-loosening washer of the nut can keep the installation synchronism between the nut and the gasket and improve the use convenience while preventing the gasket from deviating through the clamping block;

3. the anti-loosening washer for the nut has the advantages that the structural design is stable for the anti-loosening measure of the nut, the structure is not prone to loosening after long-time use, the protection measure of the bolt is in place, and the bolt is not prone to being corroded and damaged.

Drawings

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

fig. 2 is a schematic view of the local explosion structure of the protection unit of the present invention;

FIG. 3 is a schematic view of the explosion structure of the anti-loosening unit of the present invention;

fig. 4 is a schematic view of the local downward-looking structure of the anti-loosening unit of the present invention.

In the figure: the anti-loosening device comprises a hexagonal nut 1, a locking unit 2, a first gasket 21, a first 22 circular hole, a first 23 arc-shaped fixing block, a 24 clamping block, a second gasket 25, a second 26 circular hole, a 27 clamping strip, a 28 reinforcing strip, a 29 fan-shaped sheet, a 3 protection unit, a 31L-shaped reed, a 32 hexagonal fixing sheet, a 33 circular baffle, a 4 triangular wedge block, a 5 reinforcing rib, a 6 hexagonal clamping block and a 7 inner hexagonal bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. 1-4, the present embodiment provides a technical solution: a lockwasher for a nut comprises a hexagon nut 1, a lockunit 2 and a protection unit 3;

hexagonal nut 1: is provided with a protection unit 3;

the protection unit 3 comprises an L-shaped reed 31, a hexagonal fixing piece 32 and a circular baffle 33, wherein six L-shaped reeds 31 in a circumferential array are arranged on the outer side of the upper end of the second gasket 25, and opposite ends of the six L-shaped reeds 31 are fixedly connected with the upper end of the hexagonal fixing piece 32 respectively. The L-shaped reed 31 fixes the position of the hexagonal fixing piece 32, after the reinforcing structure is inserted, the hexagonal fixing piece 32 is clamped in, and the circular baffle 33 is used for covering, so that the liquid is prevented from corroding the connecting structure.

The anti-loosening unit 2: include gasket one 21, circular port one 22, arc fixed block 23, joint piece 24, two gaskets 25, two circular port 26 and joint strip 27, hexagon nut 1's upside is equipped with gasket one 21, circular port one 22 has been seted up at the upper end center of gasket one 21, the outside that the upper end of gasket one 21 is located circular port one 22 is equipped with the arc fixed block 23 of six circumference arrays, the outside that the lower extreme that gasket one 21 is located hexagon nut 1 is equipped with the joint piece 24 of six circumference arrays, and the outer terminal surface of the inner laminating hexagon nut 1 of joint piece 24, the upper end of six arc fixed blocks 23 is equipped with two gaskets 25, two circular port 26 that correspond circular port one 22 are seted up at the upper end center of two gaskets 25, the lower extreme of two gaskets 25 is equipped with the joint strip 27 of six circumference arrays, and the position of joint strip 27 corresponds the space between six arc fixed blocks 23.

Use hexagon nut 1 to install as a part of connection structure, when locking, six of 24 joint hexagon nuts 1 of joint piece joint of a 21 lower extreme of gasket prevent the activity of a 21 gasket, then insert the space department between the arc fixed block 23 of a 21 upper end of gasket with the joint strip 27 joint of a two 25 lower extremes of gasket, through the joint between a 21 gasket and a two 25 gasket, the locking nature of reinforcing structure inserts reinforced structure through a circular port 22 and a two 26 circular ports.

The anti-loosening unit 2 further comprises reinforcing strips 28 and fan-shaped pieces 29, the upper end of the second gasket 25, which is located on the outer side of the second circular hole 26, is provided with a circumferential array of not less than sixteen reinforcing strips 28, and the upper end of the second gasket 25, which is located between two adjacent reinforcing strips 28, is provided with the fan-shaped pieces 29. After the reinforcing structure is inserted, the reinforcing strip 28 can increase the force which can be applied by the structure under the condition of stress, and the fan-shaped sheets 29 can strengthen the structure, so that the service life is prolonged.

The clamping device further comprises a triangular wedge block 4, the triangular wedge block 4 is arranged at the gap between the arc-shaped fixing block 23 and the clamping strip 27, and six triangular wedge blocks 4 are arranged. After the arc-shaped fixing block 23 and the clamping strip 27 are clamped, the triangular wedge block 4 is inserted into a gap between the arc-shaped fixing block and the clamping strip, and the matching tightness of the structure is improved.

Still include strengthening rib 5, the lower extreme of gasket one 21 is located the contained angle department between joint piece 24 and is equipped with strengthening rib 5, and strengthening rib 5 is equipped with six. The strengthening rib 5 increases the joint strength of joint piece 24, prevents the unexpected fracture of joint piece 24.

The novel anti-theft device is characterized by further comprising a hexagonal clamping block 6 and an inner hexagonal bolt 7, the hexagonal clamping block 6 is arranged at the center of the lower end of the circular baffle plate 33, and the inner wall of the hexagonal nut 1 is in threaded connection with the inner hexagonal bolt 7. Insert circular port 22 and circular port two 26 with hexagon socket head cap screw 7 to threaded connection hexagon nut 1 uses hexagonal fixture block 6 to fix circular baffle 33 at hexagonal stationary blade 32 upside after the installation finishes, promotes the holistic protectiveness of structure.

The utility model provides a pair of locking of nut is as follows with packing ring's theory of operation: the hexagonal nut 1 is used as a part of a connecting structure for installation, when anti-loosening is carried out, the clamping block 24 at the lower end of the first gasket 21 is clamped with six surfaces of the hexagonal nut 1, the first gasket 21 is prevented from moving, the reinforcing rib 5 increases the connecting strength of the clamping block 24, the clamping block 24 is prevented from being accidentally broken, then the clamping strip 27 at the lower end of the second gasket 25 is clamped into a gap between the arc-shaped fixing blocks 23 at the upper end of the first gasket 21, after the arc-shaped fixing blocks 23 and the clamping strip 27 are clamped, the triangular wedge block 4 is inserted into a gap between the arc-shaped fixing blocks 23 and the clamping strip 27, the matching tightness of the structure is improved, the anti-loosening performance of the structure is enhanced through the clamping between the first gasket 21 and the second gasket 25, the inner hexagonal bolt 7 is inserted through the first circular hole 22 and the second circular hole 26, after the fixing, the reinforcing strip 28 can increase the force which can be applied to the structure under the condition of stress, and the structure is reinforced through the fan-shaped sheet 29, increase life, the position of the fixed hexagonal stationary blade 32 of L type reed 31, hexagon stationary blade 32 joint income hexagon socket head cap screw 7's upper end inner wall after hexagon socket head cap screw 7 inserts, use hexagon fixture block 6 to fix circular baffle 33 at hexagon stationary blade 32 upside after the installation finishes, promote the holistic protectiveness of structure, reduce because of the corruption that uses hexagon socket head cap screw 7 for a long time and produce, whole lock washer finishes using.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a lockwasher for nut which characterized in that: comprises a hexagon nut (1), a locking unit (2) and a protection unit (3);

hexagonal nut (1): is provided with a protection unit (3);

locking unit (2): comprises a first gasket (21), a first circular hole (22), arc-shaped fixing blocks (23), a clamping block (24), a second gasket (25), a second circular hole (26) and a clamping strip (27), wherein the first gasket (21) is arranged on the upper side of the hexagonal nut (1), the first circular hole (22) is formed in the center of the upper end of the first gasket (21), the arc-shaped fixing blocks (23) with six circumferential arrays are arranged on the outer sides of the first circular hole (22) at the upper end of the first gasket (21), the clamping blocks (24) with six circumferential arrays are arranged on the outer sides of the first hexagonal nut (1) at the lower end of the first gasket (21), the inner ends of the clamping blocks (24) are attached to the outer end face of the hexagonal nut (1), the second gaskets (25) are arranged on the upper ends of the second gasket (25), the second circular hole (26) corresponding to the first circular hole (22) is formed in the center of the upper end of the second gasket (25), the lower end of the second gasket (25) is provided with six clamping strips (27) in a circumferential array, and the positions of the clamping strips (27) correspond to gaps among the six arc-shaped fixing blocks (23).

2. The washer for preventing loosening of a nut according to claim 1, wherein: locking unit (2) still include reinforcement strip (28) and fan-shaped piece (29), the outside that the upper end of two gaskets (25) is located circular port two (26) is equipped with the reinforcement strip (28) that are not less than sixteen roots of circumference array, the upper end of two gaskets (25) is located and is equipped with fan-shaped piece (29) between two adjacent reinforcement strips (28).

3. The lock washer for a nut as claimed in claim 1, wherein: protection unit (3) include L type reed (31), hexagonal stationary blade (32) and circular baffle (33), the upper end outside of gasket two (25) is equipped with L type reed (31) of six circumference arrays, and the upper end of the relative one end difference fixed connection hexagonal stationary blade (32) of six L type reeds (31).

4. The lock washer for a nut as claimed in claim 1, wherein: still include triangle wedge (4), the clearance department between arc fixed block (23) and joint strip (27) is equipped with triangle wedge (4), and triangle wedge (4) are equipped with six.

5. The lock washer for a nut as claimed in claim 1, wherein: still include strengthening rib (5), the lower extreme of gasket (21) is located the contained angle department between joint piece (24) and is equipped with strengthening rib (5), and strengthening rib (5) are equipped with six.

6. The lock washer for a nut as claimed in claim 3, wherein: the novel hexagonal socket is characterized by further comprising a hexagonal clamping block (6) and an inner hexagonal bolt (7), the hexagonal clamping block (6) is arranged at the center of the lower end of the circular baffle (33), and the inner wall of the hexagonal nut (1) is in threaded connection with the inner hexagonal bolt (7).