Lock nut structure

Abstract

The utility model relates to the technical field of locknuts, in particular to a locknut structure. According to the technical scheme, the nut comprises a nut body, an assembly cavity is formed in the nut body, reinforcing inner rings are arranged in the middles of the two sides of the inner wall of the assembly cavity, multiple sets of guide ribs are arranged on the two sets of reinforcing inner rings, an auxiliary nut is arranged on one side of the nut body, and multiple sets of friction teeth are arranged on the side, away from a guide rod, of an abutting ring. A plurality of sets of springs are arranged in the assembly cavity and located between the two sets of reinforcing inner rings, and inner threads are arranged on the inner ring of the nut body and the inner ring of the abutting ring. According to the utility model, the plurality of groups of springs are matched with the auxiliary nut, so that the nut main body is more stable in a screwing state, and meanwhile, the plurality of groups of friction teeth are arranged, so that greater friction force is formed between the nut and a workpiece in an assembling state, and the nut main body is greatly prevented from being loosened under the vibration condition.

Description

TECHNICAL FIELD

[0001] The utility model relates to a locknut technical field especially, it relates to a locknut structure. BACKGROUND

[0002] The nut is a kind of common fastener, usually cooperates with bolt, is used to fix or connect two objects. Its internal shape is usually hexagonal, square, circular or other special shape, to be engaged with the thread of bolt by torque. The nut and bolt are mutually matched to make workpiece fastening assembly, and the conventional nut in prior art is fastened and assembled with workpiece by bolt, since workpiece will shake in use, so that the nut will appear loose. For this purpose, a locknut structure is proposed. SUMMARY

[0003] The utility model relates to a locknut technical field especially, it relates to a locknut structure.

[0004] The utility model discloses a locknut structure, including the nut main part, the nut main part is set with assembly cavity, the inner wall both sides of assembly cavity are located the middle position and are all set with the reinforcing inner ring, two groups reinforcing inner ring all are set with multiple guide ribs, the one side of nut main part is provided with the vice nut, the vice nut includes the abutment ring at the one side of nut main part, the abut ring is set with guide rod on the one side close to nut main part, the one end of guide rod is set with the connecting disc away from abutment ring, the connecting disc is set with multiple limit slots, the abutment ring is set with multiple friction teeth away from guide rod one side, the assembly cavity is set with multiple springs between two groups reinforcing inner rings, the inner ring of nut main part and the inner ring of abutment ring all are set with internal thread.

[0005] Preferably, the two groups of reinforcing inner rings are respectively installed on the inner wall of the assembly cavity on the sides away from each other.

[0006] Preferably, the mounting end of the guide rib is installed corresponding to the reinforcing inner ring, and the upper and lower ends of each group of guide ribs are respectively installed corresponding to the upper and lower inner walls of the assembly cavity.

[0007] Preferably, the multiple guide ribs on the two groups of reinforcing inner rings are arranged in a staggered array, and the upper end of each group of guide ribs above the reinforcing inner ring is installed corresponding to the limit slot.

[0008] Preferably, one end of the guide rod is installed corresponding to one side of the abutment ring, the other end of the guide rod is installed corresponding to one side of the connecting disc in the assembly cavity, and the outer circle of the connecting disc is attached to the inner wall of the assembly cavity.

[0009] Preferably, each group of the friction teeth is arranged in a V shape, one side of the friction teeth is arranged in a slope shape, and the mounting end of each group of the friction teeth is mounted on one side of the abutting ring.

[0010] Preferably, one end of each group of the springs is mounted on the bottom of the inner wall of the assembly cavity, the other end of each group of the springs is mounted on one side of the connecting disc, and the side of the connecting disc away from the spring in the initial state of the spring is attached to the upper side of the inner wall of the assembly cavity.

[0011] Compared with the prior art, the utility model has the beneficial technical effects that:

[0012] The utility model discloses a whole simple structure, through the setting of multiple groups of springs and vice nut can make the nut main body in the tightening state more stable, and through the setting of multiple groups of friction teeth can make the nut have greater friction between workpieces in the assembly state, thereby greatly avoiding the loosening of the nut main body under the vibration condition, and through the setting of the reinforcing inner ring and the guide rib, the strength of the nut main body can be improved, the insufficient strength of the nut main body under the premise of the assembly cavity can be avoided, and the spring can be protected, and the damage of the spring caused by excessive pressure can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the whole structural schematic diagram of the utility model;

[0014] Fig. 2 It is the partial area sectional view of the utility model;

[0015] Fig. 3 It is the structure explosion schematic diagram of the utility model.

[0016] Sign significance: 1, nut main body;2, assembly cavity;3, reinforcing inner ring;4, guide rib;5, vice nut;51, abutting ring;52, guide rod;53, connecting disc;54, limit groove;55, friction tooth;6, spring;7, internal thread. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be further described below in combination with the drawings and specific embodiments.

[0018] EMBODIMENT

[0019] As Figs. 1-3The utility model provides a kind of locknut structure shown, including nut main body 1, nut main body 1 is equipped with assembly cavity 2, the inner wall both sides of assembly cavity 2 are located at intermediate position and are all provided with reinforcing inner ring 3, two groups of reinforcing inner ring 3 are mutually far away from side and are respectively installed with the inner wall both sides of assembly cavity 2, the mounting end of reinforcing inner ring 3 is fixedly connected with the inner wall of assembly cavity 2, two groups of reinforcing inner ring 3 are all provided with multiple groups of guide ribs 4, the mounting end of guide rib 4 is installed with reinforcing inner ring 3, guide rib 4 is fixedly connected with reinforcing inner ring 3, multiple groups of guide ribs 4 on two groups of reinforcing inner ring 3 are staggered array arrangement, multiple groups of guide ribs 4 are arranged in staggered shape and can better provide strength support for nut main body 1, the upper and lower ends of each group of guide rib 4 are respectively installed with the upper and lower inner wall of assembly cavity 2, the two ends of guide rib 4 are fixedly connected with the upper and lower inner wall of assembly cavity 2, the setting of reinforcing inner ring 3 and guide rib 4 can improve the strength of nut main body 1, avoid the case that nut main body 1 is not enough under the premise of being equipped with assembly cavity 2;

[0020] The nut body 1 is provided with a secondary nut 5 on one side, the secondary nut 5 comprises a contact ring 51 located on one side of the nut body 1, and the inner circle of the nut body 1 and the inner circle of the contact ring 51 are provided with internal threads 7. The internal threads 7 can be used to threadedly connect the nut body 1 and the contact ring 51 with the bolt, thereby better avoiding the loosening of the nut. Meanwhile, the internal threads 7 in the contact ring 51 can be set in a slip wire shape when threadedly connected with the external threads of the bolt, and the contact ring 51 is provided with a guide rod 52 on the side close to the nut body 1. One end of the guide rod 52 is correspondingly installed on one side of the contact ring 51, and the other end of the guide rod 52 is fixedly connected with the contact ring 51. The other end of the guide rod 52 is provided with a connecting disc 53, and the other end of the guide rod 52 is correspondingly installed in the assembly cavity 2 on the side of the connecting disc 53. The other end of the guide rod 52 is fixedly connected with the connecting disc 53, and the outer circle of the connecting disc 53 is in close contact with the inner wall of the assembly cavity 2. The connecting disc 53 is in sliding connection with the assembly cavity 2, and a plurality of limiting grooves 54 are formed in the connecting disc 53. Each set of guide ribs 4 is correspondingly installed above the upper end of the reinforcing inner ring 3. The limiting grooves 54 and the guide ribs 4 are correspondingly arranged to guide and limit the contact ring 51. The contact ring 51 is provided with a plurality of friction teeth 55 on the side away from the guide rod 52. Each set of friction teeth 55 is arranged in a "V" shape, and one side of the friction teeth 55 is arranged in a beveled shape. The "V" shaped beveled arrangement of the friction teeth 55 can prevent the operator from interfering with the rotation of the nut when tightening the nut. Meanwhile, the beveled arrangement improves the friction between the friction teeth 55 and the workpiece, so that the nut will not loosen when the workpiece shakes. Each set of friction teeth 55 is correspondingly installed on one side of the contact ring 51, and the friction teeth 55 are fixedly connected with the contact ring 51. A plurality of springs 6 are arranged in the assembly cavity 2 between the two sets of reinforcing inner rings 3. One end of each set of springs 6 is correspondingly installed on the bottom of the inner wall of the assembly cavity 2, and the other end of each set of springs 6 is correspondingly installed on one side of the connecting disc 53. The other end of each set of springs 6 is fixedly connected with the connecting disc 53. When the springs 6 are in the initial state, the connecting disc 53 away from the springs 6 is in close contact with the upper side of the inner wall of the assembly cavity 2. The arrangement of the springs 6 can lift the contact ring 51. When the reinforcing inner ring 3 is in a fastening assembly state, the springs 6 are in a compressed state and always press the contact ring 51 through the connecting disc 53, thereby improving the friction between the contact ring 51 and the workpiece and making the nut assembly state more secure. When the springs 6 are in a compressed state, one side of the connecting disc 53 is in close contact with one side of the reinforcing inner ring 3. At this time, the reinforcing inner ring 3 limits the connecting disc 53 to avoid excessive extrusion of the springs 6, thereby protecting the springs 6.

[0021] In the embodiment, when the operator needs to fasten the device to the bolt, the operator sets the abutting ring 51 on the outside of the bolt, and then rotates the nut body 1, so that the internal thread 7 of the inner ring of the abutting ring 51 is threadedly connected with the bolt. When the operator continuously rotates the nut body 1, the abutting ring 51 is in contact with the surface of the workpiece, and then the nut body 1 is continuously rotated. At this time, the nut body 1 is continuously pushed forward by rotation, and the abutting ring 51 is in a slip state with the external thread of the bolt due to the resistance of the workpiece. The nut body 1 is pushed forward, so that the connecting disc 53 moves into the assembly cavity 2. At this time, the connecting disc 53 extrudes the spring 6. When the connecting disc 53 and one side of the reinforced inner ring 3 are in close contact with each other, the nut fastening assembly operation is completed. The spring 6 continuously presses the connecting disc 53, so that the friction tooth 55 is stably abutted with the workpiece.

[0022] The above specific embodiments are only preferred embodiments of the utility model, and based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A locking nut structure, comprising a nut body (1), characterized in that: The nut body (1) has an assembly cavity (2). Both sides of the inner wall of the assembly cavity (2) are provided with reinforcing inner rings (3) at the middle position. Both sets of reinforcing inner rings (3) are provided with multiple sets of guide ribs (4). A secondary nut (5) is provided on one side of the nut body (1). The secondary nut (5) includes an abutment ring (51) located on one side of the nut body (1). A guide rod (52) is provided on the abutment ring (51) near the nut body (1). A connecting plate (53) is provided on the end of the guide rod (52) away from the abutment ring (51). Multiple sets of limiting grooves (54) are provided on the connecting plate (53). Multiple sets of friction teeth (55) are provided on the side of the abutment ring (51) away from the guide rod (52). Multiple sets of springs (6) are provided in the assembly cavity (2) between the two sets of reinforcing inner rings (3). The inner ring of the nut body (1) and the inner ring of the abutment ring (51) are both provided with internal threads (7).

2. The anti-loosening nut structure according to claim 1, characterized in that, The two sets of reinforcing inner rings (3) are respectively installed on opposite sides of the inner wall of the assembly cavity (2).

3. The anti-loosening nut structure according to claim 1, characterized in that, The mounting ends of the guide ribs (4) are installed corresponding to the reinforcing inner ring (3), and the upper and lower ends of each set of guide ribs (4) are installed corresponding to the upper and lower inner walls of the assembly cavity (2).

4. The anti-loosening nut structure according to claim 1, characterized in that, Multiple sets of guide ribs (4) on the two sets of reinforcing inner rings (3) are arranged in an alternating array, and the upper end of each set of guide ribs (4) is installed corresponding to the limiting groove (54).

5. The anti-loosening nut structure according to claim 1, characterized in that, One end of the guide rod (52) is installed corresponding to one side of the abutment ring (51), and the other end of the guide rod (52) is installed corresponding to one side of the connecting plate (53) inside the assembly cavity (2). The outer ring of the connecting plate (53) is in contact with the inner wall of the assembly cavity (2).

6. The anti-loosening nut structure according to claim 1, characterized in that, Each set of friction teeth (55) is arranged in a "V" shape, and one side of the friction teeth (55) is arranged in an inclined plane. The mounting end of each set of friction teeth (55) is installed corresponding to one side of the contact ring (51).

7. The anti-loosening nut structure according to claim 1, characterized in that, One end of each set of springs (6) is installed corresponding to the bottom of the inner wall of the assembly cavity (2), and the other end of each set of springs (6) is installed corresponding to one side of the connecting plate (53). When the springs (6) are in the initial state, the side of the connecting plate (53) away from the springs (6) is in contact with the upper side of the inner wall of the assembly cavity (2).

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