Anti-back locking nut

Abstract

The utility model discloses an anti-back locking nut which comprises a nut body and a screw rod, a through first threaded hole is formed in the middle of the upper surface of the nut body, a through second threaded hole is formed in the position, close to the first threaded hole, of the upper surface of the nut body, and a clamping groove is formed in the lower surface of the nut body. A clamping sleeve is clamped in the clamping groove through a clamping spring, the clamping sleeve is connected with the nut body in a relatively rotating mode, and a positioning mechanism used for locking the nut body and the clamping sleeve is detachably installed in the second threaded hole. The positioning mechanism and the clamping sleeve are arranged on the nut body and matched with the screw rod, the nut body is locked, the anti-back-locking function is achieved, the structure is simple, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to an anti-reverse locking nut. Background Technology

[0002] When processing wires and cables, it is usually necessary to first mount the wire spool on a wire feeding shaft equipped with a screw, then put a tapered tip on the wire feeding shaft and tighten it against the wire spool, and finally use a nut threaded onto the wire feeding shaft to fix the tip, so that the wire feeding shaft can drive the wire spool to rotate.

[0003] However, traditional nuts can loosen or fall off under strong vibration or irregular strong fluctuations, causing the tip to fail to tighten the spool, resulting in a loose spool that affects production and poses a safety hazard. To address this, we have proposed an anti-relapsing locking nut. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-loosening locking nut to solve the problem mentioned in the background art that traditional nuts may loosen or fall off in environments with strong vibration or irregular strong fluctuations, resulting in the tip being unable to tighten the coil and thus loosening, affecting production and posing safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-reverse locking nut, comprising a nut body and a screw, wherein a first threaded hole is formed in the middle of the upper surface of the nut body, a second threaded hole is formed in the upper surface of the nut body near the first threaded hole, a groove is formed on the lower surface of the nut body, a sleeve is secured in the groove by a snap ring, the sleeve and the nut body are rotatably connected relative to each other, and a positioning mechanism for locking the nut body and the sleeve is detachably installed in the second threaded hole.

[0006] The first threaded hole matches the screw, the ferrule is placed in the slot, and then the ferrule is secured in the slot by the snap ring. The nut body is then threaded onto the screw, and the nut body and the ferrule are rotated relative to each other. Rotating the nut body will push the ferrule to move on the screw. When the nut body is rotated to the bottom, the positioning mechanism is threaded into the second threaded hole to position the nut body and the ferrule and prevent the nut body from being unlocked due to vibration.

[0007] Preferably, the sleeve has a through hole in the middle, and the sleeve is fitted onto the outside of the screw through the through hole. The through hole allows the sleeve to slide on the outside of the screw.

[0008] Preferably, a slider is fixedly installed inside the through hole of the ferrule, and a downwardly extending groove matching the slider is formed on the top edge of the screw. The ferrule and the screw are slidably connected. By sliding the slider within the groove, the slider limits the movement of the ferrule, ensuring that it can only move axially and cannot rotate on the screw.

[0009] Preferably, the upper surface edge of the sleeve is provided with several positioning grooves that match the positioning mechanism at equal intervals.

[0010] Preferably, the positioning mechanism can use indexing pins or bolt positioning pins.

[0011] Preferably, the outer surface of the positioning mechanism is provided with an external thread that matches the second threaded hole.

[0012] Preferably, one end of the positioning mechanism located inside the nut body extends into the ferrule. The positioning mechanism is threaded into the second threaded hole, so that the end of the positioning mechanism extends into the positioning groove of the ferrule, thereby limiting the nut body and preventing it from rotating, thus achieving the anti-reverse locking function.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This utility model features a positioning mechanism installed on one side of the nut body and a retaining sleeve on the other side. The retaining sleeve has a slider and a positioning groove, while a groove is formed on the screw. During installation, the slider is aligned with the groove, allowing the retaining sleeve to move axially when the nut body rotates. Once the nut body is locked, the positioning mechanism is simply installed on the nut body with its end inserted into the positioning groove. The nut body is then locked in place through the cooperation of the positioning mechanism, retaining sleeve, and screw, achieving an anti-loosening function and preventing the nut body from loosening or falling off. The structure is simple and highly practical. Attached Figure Description

[0015] Figure 1 This is an exploded view of the present invention;

[0016] Figure 2 This is a side cross-sectional view of the nut body of this utility model;

[0017] Figure 3 This is a bottom view of the nut body of this utility model after the retaining sleeve and retaining spring are installed inside;

[0018] Figure 4 This is a schematic diagram of the screw structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Nut body; 2. Screw; 3. First threaded hole; 4. Second threaded hole; 5. Slot; 6. Snap ring; 7. Sleeve; 8. Positioning mechanism; 9. Through hole; 10. Slider; 11. Slide groove; 12. Positioning groove; 13. External thread. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0022] Example 1

[0023] Please see Figure 1-4 This utility model provides a technical solution: an anti-reverse locking nut, including a nut body 1 and a screw 2. A first threaded hole 3 is provided in the middle of the upper surface of the nut body 1. A second threaded hole 4 is provided in the upper surface of the nut body 1 near the first threaded hole 3. A groove 5 is provided on the lower surface of the nut body 1. A sleeve 7 is secured in the groove 5 by a snap ring 6. The sleeve 7 and the nut body 1 are rotatably connected. A positioning mechanism 8 for locking the nut body 1 and the sleeve 7 is detachably installed in the second threaded hole 4.

[0024] The sleeve 7 has a through hole 9 in the middle, and the sleeve 7 is fitted onto the outside of the screw 2 through the through hole 9.

[0025] A slider 10 is fixedly installed inside the through hole 9 of the sleeve 7. The top edge of the screw 2 has a downwardly extending groove 11 that matches the slider 10. The sleeve 7 and the screw 2 are slidably connected.

[0026] The upper surface edge of the sleeve 7 has several positioning grooves 12 that match the positioning mechanism 8.

[0027] The positioning mechanism 8 can use indexing pins or bolt positioning pins.

[0028] The outer surface of the positioning mechanism 8 is provided with an external thread 13 that matches the second threaded hole 4.

[0029] The positioning mechanism 8 extends from one end inside the nut body 1 into the ferrule 7.

[0030] Working principle or structural principle: When the nut body 1 is installed on the screw 2, the ferrule 7 is first locked in the groove 5 by the snap ring 6. Then, the slider 10 on the ferrule 7 is aligned with the groove 11 on the screw 2, so that the thread 2 and the first threaded hole 3 of the nut body 1 are threadedly connected. After the nut body 1 is installed, the end of the positioning mechanism 8 installed in the second threaded hole 4 extends into the positioning groove 12 of the ferrule 7 to limit the nut body 1, thereby preventing the nut body 1 from being unlocked.

[0031] Example 2

[0032] Components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0033] The positioning mechanism 8 uses indexing pins.

[0034] Working principle or structural principle: When in use, the indexing pin is directly installed in the second threaded hole 4. When installing the nut body 1, simply pull the safety pin of the indexing pin out of the positioning groove 12 and rotate it to separate the end of the indexing pin from the positioning groove 12, so that the nut body 1 can rotate on the screw 2.

[0035] Example 3

[0036] Components that are the same as or corresponding to those in Embodiment 2 are referred to using the same reference numerals as in Embodiment 2. For simplicity, only the differences from Embodiment 2 are described below. The difference between Embodiment 3 and Embodiment 2 is as follows:

[0037] Positioning mechanism 8 is a bolt positioning pin.

[0038] Working principle or structural principle: When in use, the nut body 1 is installed on the screw 2. When it is necessary to lock the nut body 1, the bolt positioning pin is threaded into the second threaded hole 4 until the end of the bolt positioning pin extends into the positioning groove 12, thereby locking the nut body 1.

[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. It should be noted that implementations not illustrated or described in the drawings or the main text of the specification are forms known to those skilled in the art and have not been described in detail. Furthermore, the definitions of the components described above are not limited to the various specific structures, shapes, or methods mentioned in the embodiments, and those skilled in the art can easily modify or substitute them.

[0040] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A locking nut with anti-retraction mechanism, comprising a nut body (1) and a screw (2), characterized in that: The upper surface of the nut body (1) has a through first threaded hole (3) in the middle, and the upper surface of the nut body (1) has a through second threaded hole (4) near the first threaded hole (3). The lower surface of the nut body (1) has a slot (5), and a sleeve (7) is secured in the slot (5) by a snap ring (6). The sleeve (7) and the nut body (1) are rotatably connected. A positioning mechanism (8) for locking the nut body (1) and the sleeve (7) is detachably installed in the second threaded hole (4).

2. The anti-reverse locking nut according to claim 1, characterized in that: The sleeve (7) has a through hole (9) in the middle, and the sleeve (7) is fitted onto the outside of the screw (2) through the through hole (9).

3. The anti-reverse locking nut according to claim 2, characterized in that: A slider (10) is fixedly installed in the through hole (9) of the sleeve (7), and a downwardly extending groove (11) matching the slider (10) is opened on the top edge of the screw (2). The sleeve (7) and the screw (2) are slidably connected.

4. The anti-reverse locking nut according to claim 1, characterized in that: The upper surface edge of the sleeve (7) is provided with several positioning grooves (12) that match the positioning mechanism (8).

5. The anti-reverse locking nut according to claim 1, characterized in that: The positioning mechanism (8) may use indexing pins or bolt positioning pins.

6. A locking nut for preventing slippage according to claim 5, characterized in that: The outer surface of the positioning mechanism (8) is provided with an external thread (13) that matches the second threaded hole (4).

7. A locking nut for preventing slippage according to claim 6, characterized in that: The positioning mechanism (8) extends from one end inside the nut body (1) into the sleeve (7).

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