Anti-backout threaded cable accessory and connector assembly

Abstract

The utility model relates to a kind of anti-back thread cable accessory and connector assembly, the cable accessory includes sleeve and the connecting nut of rotation being set at the front end of the sleeve, the connecting nut is connected with sleeve axial tensile resistance;The sleeve outer periphery is also provided with locking cap, the locking cap can be axially slid relative to sleeve and circumferential rotation is stopped;The locking cap front end is provided with the second locking tooth for with the first locking tooth of the tail portion of connecting nut adaptation meshing;The outer baffle ring of setting in the sleeve outer periphery ring groove is blocked at the tail portion of locking cap, so that locking cap is kept in with connecting nut meshing locking position.The utility model cable accessory can realize cycle unlocking, locking, unlocking cable accessory and connector can be normally connected and separated, locking cable accessory and connector thread connection place do not back off.

Description

Technical Field

[0001] This utility model belongs to the field of cable accessory technology, specifically relating to an anti-reverse threaded cable accessory. Background Technology

[0002] The connector tail accessory is secured to the connector housing via a connecting nut. However, during use, the connecting nut can loosen due to environmental vibrations, leading to unreliable connection and affecting the connector's stability. To address this loosening issue, current technologies typically use methods such as drilling fuse holes or applying threadlocker to prevent loosening. However, these methods are inconvenient and lack reliability. Summary of the Invention

[0003] This utility model provides a novel anti-loosening threaded cable accessory, which prevents loosening after the tail accessory and connector threads are locked by adding anti-loosening teeth between the accessory housing and the connecting nut.

[0004] The purpose of this utility model and the technical problem it solves are achieved by the following technical solution. According to this utility model, an anti-reverse threaded cable accessory includes a sleeve 1 and a connecting nut 2 rotatably disposed at the front end of the sleeve 1. The connecting nut 2 has a stop and limit relative to the axial direction of the sleeve 1. A locking cap 3 is also provided on the outer periphery of the sleeve 1. The locking cap 3 is slidable relative to the sleeve 1 axially and circumferentially prevents rotation. The front end of the locking cap 3 is provided with a second locking tooth 32 for engaging with a first locking tooth 23 at the tail of the connecting nut 2. An outer retaining ring 4 disposed in an annular groove on the outer periphery of the sleeve 1 stops at the tail of the locking cap 3, keeping the locking cap 3 in a locked position engaged with the connecting nut 2.

[0005] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.

[0006] In the aforementioned anti-reverse threaded cable accessory, the locking cap 3 achieves axial sliding guidance and circumferential anti-rotation with the sleeve 1 through the cooperation of at least one keyway 31 on its inner circumference with the convex key 13 on the outer circumference of the sleeve.

[0007] The aforementioned anti-reverse threaded cable accessory also includes a connector between the connecting nut 2 and the sleeve 1, which can stop and limit the axial forward movement of the connecting nut 2.

[0008] The aforementioned anti-reverse threaded cable accessory has a retaining ring 5 as the connecting component. The outer ring of the retaining ring 5 is located in the first annular groove 21 inside the connecting nut 2, and the inner ring is located in the second annular groove 11 on the outer periphery of the sleeve 1.

[0009] In the aforementioned anti-reverse threaded cable accessory, the second annular groove 11 is a stepped groove that is shallow at the front and deep at the rear. The shallow groove at the front end can prevent the snap ring 5 from coming out of the first annular groove 21, while the deep groove at the rear end can provide space for the snap ring 5 to come out of the first annular groove 21. The stepped groove not only enables the snap ring 5 to be quickly assembled, but also prevents the snap ring 5 from coming out, ensuring the reliability of the axial limiting between the connecting nut 2 and the sleeve 1.

[0010] The aforementioned anti-reverse threaded cable accessory has a sealing ring groove 22 on the inner side of the front end of the connecting nut 2. The sealing ring groove 22 is provided with a sealing ring 6 for sealing between the connecting nut 2 and the connector housing and the sleeve 1, ensuring the sealing at the connection between the tail accessory and the connector housing.

[0011] The aforementioned anti-reverse threaded cable accessory has at least two sealing ribs on both the inner and outer circumferences of the sealing ring 6, which enhance the reliability of the seal.

[0012] The aforementioned anti-reverse threaded cable accessory also includes a meshing tooth 15 on the front end face of the sleeve 1. The meshing tooth 15 is used to mesh with the tooth on the tail end face of the connector housing to achieve an anti-rotation connection between the sleeve 1 and the connector housing.

[0013] In the aforementioned anti-reverse threaded cable accessory, the second locking tooth 32 is distributed on the front end face of the locking cap 3, and the first locking tooth 23 is disposed on the rear end face of the connecting nut 2.

[0014] In the aforementioned anti-reverse threaded cable accessory, the second locking teeth 32 are distributed on the outer peripheral surface of the front end of the locking cap, and the first locking teeth 23 are disposed on the inner peripheral surface of the tail end of the connecting nut 2.

[0015] Compared with the prior art, this utility model has significant advantages and beneficial effects. Through the above technical solution, this utility model achieves considerable technological advancement and practicality, and has broad industrial application value. It possesses at least the following advantages:

[0016] This utility model adds anti-loosening teeth to the tail of the connecting nut 2 and adds a locking sleeve to the outer circumference of the sleeve. Through the circumferential anti-rotation fit between the locking sleeve and the sleeve and the meshing of the anti-loosening teeth on the locking sleeve and the connecting nut, the connecting nut is locked to prevent loosening.

[0017] This invention uses an outer retaining ring to keep the locking sleeve in the locked position of the connecting nut. The outer retaining ring is fixed in the annular groove on the outer circumference of the sleeve. Only when the outer retaining ring is removed can the locking nut release the connection nut. The removal of the outer retaining ring requires a specific tool, which ensures the stable and reliable locking of the connection nut and thus ensures the reliable anti-loosening of the tail accessory of this invention.

[0018] This utility model cable accessory can achieve cyclic unlocking and locking. When unlocking, the cable accessory and connector can be connected and separated normally. When locking, the threaded connection between the cable accessory and connector does not retract. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the anti-reverse threaded cable accessory of this utility model;

[0020] Figure 2 This is an exploded view of the anti-reverse threaded cable accessory of this utility model.

[0021] [Explanation of Key Component Symbols]

[0022] 1: Sleeve

[0023] 11: Second annular groove

[0024] 12: Third annular groove

[0025] 13: Convex key

[0026] 14: Fourth annular groove

[0027] 15: Meshing teeth

[0028] 16: Alveolar teeth

[0029] 2: Connecting nut

[0030] 21: First annular groove

[0031] 22: Sealing ring groove

[0032] 23: First locking tooth

[0033] 3: Locking cap

[0034] 31: Keyway

[0035] 32: Second locking tooth

[0036] 4: Outer retaining ring

[0037] 5: Snap ring

[0038] 6: Sealing ring Detailed Implementation

[0039] To further illustrate the technical means and effects adopted by this utility model to achieve the intended purpose of the invention, the following detailed description of the specific implementation method, structure, features and effects of the anti-reverse threaded cable accessory proposed according to this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0040] Please see Figure 1-2This is a schematic diagram of the structure of the anti-reverse threaded cable accessory of this utility model. The cable accessory includes a sleeve 1, and a connecting nut 2 is rotatably provided on the outer circumference of the front end of the sleeve 1. The connecting nut 2 and the sleeve 1 have a limiting device to restrict the axial forward movement of the connecting nut 2 relative to the sleeve 1. In this embodiment of the utility model, the connecting nut and the sleeve 1 are connected by a connector to achieve the axial forward blocking and limiting of the connecting nut relative to the sleeve 1. However, in other embodiments of the utility model, the axial forward movement of the connecting nut 2 is limited by the blocking and limiting device between its inner protruding front end face and the protruding rear end face of the front end of the sleeve 1.

[0041] In this embodiment of the utility model, the connecting member is a snap ring 5, the connecting nut 2 is provided with a first annular groove 21, the outer periphery of the front end of the sleeve 1 is provided with a second annular groove 11, the outer ring of the snap ring 5 is located in the first annular groove 21, and the inner ring is located in the second annular groove 11.

[0042] In this embodiment of the present invention, the second annular groove 11 is a stepped groove that is shallow at the front and deep at the back. The width of the deep groove at the rear end of the second annular groove 11 is slightly larger than the width of the retaining spring 5, and the depth of the deep groove at the rear end of the second annular groove 11 is greater than the thickness of the retaining spring 5, so that the retaining spring 5 can be installed in the deep groove at the rear end of the second annular groove 11 without interfering with the connecting nut 2. Before assembling the connecting nut 2, first install the snap ring 5 in the second annular groove 11 on the sleeve 1, so that it is located in the deep groove at the rear end. Then, put the connecting nut 2 on the sleeve 1 from front to back. During the assembly of the connecting nut 2, the snap ring 5 is pressed into the deep groove at the rear end of the second annular groove 11. When the connecting nut 2 moves to the position where the first annular groove 21 on its inner circumference corresponds to the deep groove at the rear end of the second annular groove 11, the snap ring 5 enters the first annular groove 21. Moving the connecting nut 2 forward causes the inner ring of the snap ring 5 to enter the shallow groove at the front end of the second annular groove 11. The shallow groove part limits the inner ring of the snap ring 5 to prevent it from coming off the connecting nut 2.

[0043] A locking cap 3 is also fitted around the outer periphery of the sleeve 1. The locking cap 3 can slide axially relative to the sleeve 1 and achieves circumferential anti-rotation engagement with the sleeve 1 through a concave-convex structure. In this embodiment of the present invention, the inner periphery of the locking cap 3 is provided with at least one keyway 31, and the outer periphery of the sleeve 1 is provided with a corresponding convex key 13. The locking cap 3 and the sleeve 1 achieve circumferential anti-rotation through the engagement of the keyway 31 and the convex key 13. The keyway 31 is a through groove with open ends, which extends through the length direction of the locking cap 3, thereby allowing the locking cap 3 to slide freely along the axial direction of the sleeve 1.

[0044] The locking cap 3 achieves a circumferential anti-rotation connection between the two through the engagement of its second locking tooth 32 at the front end and the first locking tooth 23 at the tail end of the connecting nut 2. The sleeve 1 also has a third annular groove 12 on its outer periphery. An outer retaining ring 4, disposed within this third annular groove 12, protrudes from the outer circumferential surface of the sleeve 1 and stops at the tail end of the locking cap 3, ensuring that the second locking tooth 32 of the locking cap 3 remains engaged with the first locking tooth 23 at the tail end of the connecting nut 2. When it is necessary to unlock the connecting nut 2, simply remove the outer retaining ring 4 and move the locking cap 3 axially backward, disengaging the locking teeth between the connecting nut 2 and the locking cap 3, thus releasing the locking of the connecting nut 2.

[0045] In this embodiment of the utility model, the front end face of the locking cap 3 is provided with a second locking tooth 32 distributed circumferentially, and the tail end face of the connecting nut 2 is also provided with a corresponding first locking tooth 23. When the connecting nut 2 and the connector housing are locked in place, the locking cap 3 is moved forward axially so that the second locking tooth 23 on the front end face of the locking cap 3 enters the tooth groove of the first locking tooth 32 on the tail end face of the connecting nut 2, thereby realizing the meshing of the locking teeth. Then, the outer retaining ring 4 is installed into the sleeve 1, and the outer retaining ring 4 prevents the locking cap 3 from moving axially backward, keeping it in the position of anti-rotation locking with the connecting nut 2.

[0046] In other embodiments of this utility model, the second locking tooth 32 of the locking cap 3 is located on its front outer peripheral surface, and the matching first locking tooth 23 on the connecting nut 2 is located on its rear inner peripheral surface. After the connecting nut 2 is locked in place, the second locking tooth 32 on the front outer peripheral surface of the locking cap 3 can be pushed into the tooth groove of the first locking tooth 23 inside the connecting nut 2 to achieve tooth-to-tooth meshing, ensuring the circumferential anti-rotation connection of the locking cap 3 and the connecting nut 2, and ensuring the anti-loosening of the connecting nut 2.

[0047] Preferably, the first locking tooth 23 and the second locking tooth 32 are rectangular teeth or triangular teeth, but are not limited to these.

[0048] In this embodiment of the utility model, the sleeve 1 is provided with a fourth annular groove 14 on its outer periphery. When the connecting nut and the locking nut 3 are engaged, the interlocking locking teeth are aligned with the fourth annular groove 14.

[0049] The connecting nut 2 has a sealing groove 22 on its inner circumference at the front end, and a sealing ring 6 is provided in the sealing groove 22. The sealing ring 6 is used to achieve a seal between the connecting nut 2 and the sleeve 1, and between the connecting nut 2 and the connector housing, to prevent external liquids or dust from entering the connector and sleeve 1 through the connection between the sleeve 1 and the connector housing. In this embodiment of the present invention, both the inner and outer rings of the sealing ring 6 are provided with two raised ribs, wherein the two raised ribs on the inner ring are distributed to achieve an interference seal with the sleeve 1 and the connector housing.

[0050] In this embodiment of the utility model, the front end face of the sleeve 1 is also provided with a meshing tooth 15, which is used to mesh with the tooth on the tail end face of the connector housing to realize the anti-rotation connection between the connector housing and the sleeve.

[0051] In this embodiment of the invention, the outer periphery of the sleeve 1 is further provided with a plurality of circumferentially extending and axially spaced toothed grooves 16. These toothed grooves 16 are used to enhance the friction between the cable shielding layer and the outer peripheral surface of the sleeve 1, thereby achieving reliable fixation of the cable shielding layer on the outer periphery of the sleeve 1. An annular anti-detachment platform 17 is also provided on the outer periphery of the sleeve 1 at positions before and after the toothed grooves 16.

[0052] This utility model also provides a connector assembly, which includes a connector and a tail accessory. The tail accessory is the aforementioned anti-reverse threaded cable accessory. The anti-reverse threaded cable accessory is threadedly locked to the tail of the connector housing by a connecting nut 2. The locking cap 3 in the anti-reverse threaded cable accessory realizes anti-reverse after the connecting nut 2 is locked to the connector.

[0053] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A threaded cable accessory with anti-reverse properties, comprising a sleeve and a connecting nut rotatably disposed at the front end of the sleeve; characterized in that... The sleeve is also provided with a locking cap on its outer periphery. The locking cap can slide axially relative to the sleeve and is circumferentially anti-rotating. The front end of the locking cap is provided with a second locking tooth for matching and engaging with the first locking tooth at the tail of the connecting nut. An outer retaining ring provided in the annular groove on the outer periphery of the sleeve stops at the tail of the locking cap, so that the locking cap is kept in the position of engaging and locking with the connecting nut.

2. The anti-reverse threaded cable accessory according to claim 1, characterized in that: The locking cap achieves axial sliding guidance and circumferential anti-rotation with the sleeve through the cooperation of at least one keyway on its inner circumference with the convex key on the outer circumference of the sleeve.

3. The anti-reverse threaded cable accessory according to claim 1, characterized in that: A connecting piece is also provided between the connecting nut and the sleeve to achieve a tensile connection between them.

4. The anti-reverse threaded cable accessory according to claim 3, characterized in that: The connecting component is a snap ring, with the outer ring of the snap ring located in the first annular groove inside the connecting nut, and the inner ring located in the second annular groove on the outer circumference of the sleeve.

5. The anti-reverse threaded cable accessory according to claim 4, characterized in that: The second annular groove is a stepped groove that is shallow at the front and deep at the back. The shallow groove at the front prevents the retaining ring from coming out of the first annular groove, while the deep groove at the rear provides space for the retaining ring to come out of the first annular groove.

6. The anti-reverse threaded cable accessory according to claim 1, characterized in that: The inner side of the front end of the connecting nut is provided with a sealing ring groove, and a sealing ring is provided in the sealing ring groove to achieve a seal between the connecting nut and the connector housing and the sleeve.

7. The anti-reverse threaded cable accessory according to claim 1, characterized in that: The sleeve front end face is also provided with meshing teeth, which are used to mesh with the teeth on the tail end face of the connector housing to realize the anti-rotation connection between the sleeve and the connector housing.

8. The anti-reverse threaded cable accessory according to any one of claims 1-7, characterized in that: The second locking teeth are distributed on the front end face of the locking nut, and the first locking teeth are disposed on the rear end face of the connecting nut.

9. The anti-reverse threaded cable accessory according to any one of claims 1-7, characterized in that: The second locking teeth are distributed on the outer peripheral surface of the front end of the locking nut, and the first locking teeth are disposed on the inner peripheral surface of the tail end of the connecting nut.

10. A connector assembly comprising a connector and a tail accessory threadedly connected to the tail of the connector housing, characterized in that: The tail accessory is the anti-reverse threaded cable accessory as described in any one of claims 1-9.

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