Torsion type sustainable locknut

Abstract

The utility model relates to a torsion type sustainable locknut which comprises a nut body, an inner threaded hole is formed in the nut body in an up-down penetrating mode, a fixing ring is fixedly connected to the upper side of the nut body, a containing opening is formed in the fixing ring in an up-down penetrating mode, and a torsion spring is detachably arranged in the containing opening of the fixing ring. When the nut is used, the torsion spring is taken down firstly, after the nut body is screwed on the screw rod, the torsion spring is installed in the containing opening of the fixing ring, the screw rod tail end abutting arm abuts against the tail end of the screw rod, and then the nut body is screwed on the screw rod, so that the screw rod tail end abutting arm abuts against the tail end of the screw rod. The torsion spring is arranged on the nut body, so that the torsion spring can generate continuous clockwise torsion force, the torsion force acts on the nut body, the nut body is continuously kept in a fastening state, and the nut is prevented from loosening due to vibration or other dynamic loads. Due to the continuous anti-loosening function, the reliability and the stability of the fastener are improved, and potential safety hazards caused by loosening of the nut are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a torque-type sustainable anti-loosening nut. Background Technique

[0002] Fasteners (such as nuts and bolts) play a crucial role in modern industrial production and equipment maintenance. Especially in multiple fields such as machinery, automobiles, aerospace, and construction, the reliability and stability of fasteners directly affect the performance and safety of equipment.

[0003] However, in practical applications, fasteners often face the problem of loosening caused by vibration or dynamic loads, which not only affects the normal operation of equipment but may also lead to serious safety accidents.

[0004] Most of the existing anti-loosening nuts rely on increasing friction or self-locking mechanisms to prevent loosening. However, under the action of long-term vibration or dynamic loads, these anti-loosening effects may gradually weaken, resulting in nut loosening.

[0005] In view of the above problems, the present application proposes a torque-type sustainable anti-loosening nut, which can continuously provide a reliable anti-loosening function under the action of long-term vibration or dynamic loads. Content of the Utility Model

[0006] The utility model proposes a torque-type sustainable anti-loosening nut, which solves the above problems existing in the prior art during use.

[0007] The technical solution of the utility model is realized as follows: a torque-type sustainable anti-loosening nut, including a nut body, an internal thread hole is vertically penetrated and opened in the nut body, a fixing ring is fixedly connected to the upper side of the nut body, a placement opening is vertically penetrated and opened in the fixing ring, a torsion spring is detachably arranged in the placement opening of the fixing ring, and the torsion spring includes a screw tail end abutting arm bent towards its inner side.

[0008] Preferably, the placement opening and the internal thread hole are concentrically arranged, and the placement opening is larger than the internal thread hole.

[0009] Preferably, the torsion spring further includes a fixing ring abutting arm bent towards its outer side, a fixing ring bayonet opening upwards is opened on the inner side wall of the placement opening of the fixing ring, and the fixing ring abutting arm is located in the fixing ring bayonet.

[0010] Preferably, both the screw tail end abutting arm and the fixing ring abutting arm have two, a bending arm is integrally formed between the two fixing ring abutting arms, and the two screw tail end abutting arms are located at the positions between the two fixing ring abutting arms.

[0011] Preferably, a limit cover is detachably connected to the fixed ring, and the limit cover covers the upper side of the placement opening.

[0012] Preferably, external threads are provided on the outer side wall of the fixed ring, and the limit cover is threadedly connected to the external threads.

[0013] Preferably, a screw rod through hole is penetrated through the center of the limit cover, a sealing gasket is detachably arranged on the screw rod through hole of the limit cover, a clamping groove is arranged on the outer periphery of the sealing gasket, and the edge of the screw rod through hole is used for being clamped in the clamping groove.

[0014] In summary, the beneficial effects of the present utility model are as follows:

[0015] 1. A torsion spring is detachably arranged in the fixed ring on the upper side of the nut body of the present utility model. When the present utility model is in use, the torsion spring is first removed. After the nut body is screwed tightly on the screw rod, the torsion spring is then installed into the placement opening of the fixed ring, and the abutting arm at the tail end of the screw rod abuts against the tail end of the screw rod, so that the torsion spring can generate a continuous clockwise torsion force. This torsion force acts on the nut body, enabling the nut body to continuously maintain a tightened state, thereby preventing the present utility model from loosening due to vibration or other dynamic loads. This continuous anti-loosening function improves the reliability and stability of the fastener, and reduces the potential safety hazards caused by the loosening of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic sectional structure diagram of the present utility model;

[0019] Figure 3 is an exploded structure diagram of the present utility model;

[0020] Figure 4 is a schematic structure diagram of the present utility model after removing the limit cover;

[0021] Figure 5 is a schematic structure diagram of the present utility model when cooperating with a screw rod having a screw rod bayonet;

[0022] Figure 6 is a schematic structure diagram of the present utility model when cooperating with a screw rod having a flat surface.

[0023] In the figure: 1. Nut body; 11. Internal thread hole; 2. Fixed ring; 21. Placement opening; 22. Fixed ring bayonet; 3. Torsion spring; 31. Screw tail end abutting arm; 32. Fixed ring abutting arm; 33. Bent arm; 4. Limit cover; 41. Screw through hole; 5. Sealing gasket; 51. Card slot; 6. Screw; 61. Screw bayonet; 62. Flat surface. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached Figure 1-6 , and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0025] Embodiment:

[0026] As Figures 1 to 6 shown, the present invention discloses a torsion-type sustainable anti-loosening nut, which includes a nut body 1. An internal thread hole 11 is vertically penetrated in the nut body 1, and a fixed ring 2 is fixedly connected to the upper side of the nut body 1. A placement opening 21 is vertically penetrated in the fixed ring 2. The placement opening 21 is concentric with the internal thread hole 11 and the placement opening 21 is larger than the internal thread hole 11. Among them, a torsion spring 3 is detachably arranged in the placement opening 21 of the fixed ring 2, and the torsion spring 3 includes a screw tail end abutting arm 31 bent towards its inner side. In addition, it should be noted that the screw that is threadedly engaged with the present invention is preferably provided with a certain structure for the screw tail end abutting arm 31, so that the screw tail end abutting arm 31 can be firmly stuck on the screw tail end.

[0027] Specifically, the torsion spring 3 further includes a fixed ring abutting arm 32 bent towards its outer side. An upward-opening fixed ring bayonet 22 is formed on the inner side wall of the placement opening 21 of the fixed ring 2, and the fixed ring abutting arm 32 is located in the fixed ring bayonet 22.

[0028] Furthermore, there are two screw tail end abutting arms 31 and two fixed ring abutting arms 32. A bent arm 33 is integrally formed between the two fixed ring abutting arms 32. During installation, the bent arm 33 is also located in the fixed ring bayonet 22. Among them, the two screw tail end abutting arms 31 are located between the two fixed ring abutting arms 32. This structural setting is reasonable and improves the stability of the torsion spring 3.

[0029] The screw 6 used to cooperate with the present invention can be as Figure 5As shown in the figure, a screw bayonet 61 is provided at the tail end of the screw. When the present utility model is in use, first remove the torsion spring 3. Here, taking the clockwise direction of the nut body 1 as the tightening direction as an example, after the nut body 1 is tightened clockwise on the screw, then install the torsion spring 3 into the placement opening 21 of the fixing ring 2, and make the fixing ring abutment arm 32 snap into the fixing ring bayonet 22, and make the screw tail end abutment arm 31 snap into the screw bayonet 61. At this time, the torsion spring 3 can generate a continuous clockwise torsion force, and this torsion force acts on the nut body 1, so that the nut body 1 continuously maintains a tightened state, thereby preventing the present utility model from loosening due to vibration or other dynamic loads. This continuous anti-loosening function improves the reliability and stability of the fastener and reduces the safety hazards caused by nut loosening.

[0030] Herein, the present utility model further provides a screw 6 that cooperates with the present utility model. As Figure 6 shown, a flat surface 62 is provided on the side surface of the tail end. When the torsion spring 3 is snapped in, the screw tail end abutment arm 31 closely abuts against the flat surface 62. The abutment position of the screw tail end abutment arm 31 of this structure may not be as stable and reliable as that of the screw provided with the screw bayonet 61, but the advantage is that some existing screws themselves have a flat surface 62, so no additional processing is required for the screw. However, the screw tail end abutment arm that cooperates with this screw has slight differences in the bending angle and length from the screw tail end abutment arm that cooperates with the screw bayonet 61.

[0031] In the present utility model, a limit cover 4 is detachably connected to the fixing ring 2, and the limit cover 4 covers the upper side of the placement opening 21. By providing the limit cover 4, the torsion spring 3 can be prevented from slipping out of the placement opening 21.

[0032] Furthermore, the specific structure of the detachably connected limit cover 4 on the fixing ring 2 is as follows: an external thread is provided on the outer side wall of the fixing ring 2, and the limit cover 4 is threadedly connected to the external thread.

[0033] Still further, a screw through hole 41 is penetrated through the center of the limit cover 4. For some longer screws, their tails may need to pass through the limit cover 4, so the screw through hole 41 needs to be provided. Then, a sealing gasket 5 is detachably provided on the screw through hole 41 of the limit cover 4. The sealing gasket 5 is made of rubber. A card slot 51 is provided on the outer periphery of the sealing gasket 5 for the edge of the screw through hole 41 to be clamped therein. When the screw is not so long, that is, the screw tail end does not pass through the screw through hole 41, the screw through hole 41 can be covered by the sealing gasket 5, thereby preventing moisture from entering and rusting the torsion spring 3.

[0034] It should also be noted that the terms used in the present utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0035] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A torsion-type sustainable anti-loosening nut, comprising a nut body, and an internal threaded hole is vertically penetrated through the nut body, and is characterized in that: A fixing ring is fixedly connected to the upper side of the nut body. A placing opening is vertically formed through the fixing ring. A torsion spring is detachably arranged in the placing opening of the fixing ring. The torsion spring includes a screw rod tail end abutting arm bent towards the inner side thereof.

2. The torque-type sustainable anti-loosening nut according to claim 1, wherein: The placing opening and the internal thread hole are concentrically arranged, and the placing opening is larger than the internal thread hole.

3. The torsion-type sustainable anti-loosening nut according to claim 2, characterized in that: The torsion spring further includes a fixing ring abutting arm bent towards the outer side thereof. The fixing ring is provided with a fixing ring bayonet with an upward opening on the inner side wall of the placing opening. The fixing ring abutting arm is located in the fixing ring bayonet.

4. A torsion-type sustainable anti-loosening nut according to claim 3, characterized in that: There are two screw rod tail end abutting arms and two fixing ring abutting arms respectively. A bent arm is integrally formed between the two fixing ring abutting arms. The two screw rod tail end abutting arms are located between the two fixing ring abutting arms.

5. The torque-type sustainable anti-loosening nut according to claim 3, characterized in that: A limiting cover is detachably connected to the fixing ring. The limiting cover covers the upper side of the placing opening.

6. The torque-type sustainable anti-loosening nut according to claim 5, wherein: External threads are provided on the outer side wall of the fixing ring. The limiting cover is threadedly connected to the external threads.

7. The torque-type sustainable anti-loosening nut according to claim 5, characterized in that: A screw rod through hole is vertically formed through the center of the limiting cover. A sealing gasket is detachably arranged on the screw rod through hole of the limiting cover. A clamping groove is formed on the outer periphery of the sealing gasket. The clamping groove is used for clamping the edge of the screw rod through hole therein.

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