Spring clip release connector

Abstract

The application relates to a clamping spring anti-disengagement connector which comprises a spline shell and a connecting nut, the connecting nut is internally provided with a clamping spring groove, the clamping spring groove is internally provided with an anti-disengagement clamping spring, the anti-disengagement clamping spring comprises a clamping spring body and at least one protruding key and / or recess distributed on the inner periphery of the clamping spring body; the outer periphery of the spline shell is provided with an anti-disengagement washer, the anti-disengagement washer comprises a large-diameter section at the front end and a small-diameter section at the rear end, the front end of the large-diameter section is in abutting cooperation with the first abutting surface of the outer periphery of the spline shell, and the rear end is in abutting cooperation with the front end surface of the clamping spring body; the outer periphery of the small-diameter section is provided with a recess and / or protruding key matched with the protruding key and / or recess on the inner periphery of the clamping spring body; during assembly, the protruding key / recess on the anti-disengagement clamping spring is aligned with the corresponding recess / protruding key on the anti-disengagement washer, the anti-disengagement clamping spring is entered into the clamping spring groove, the anti-disengagement washer or the connecting nut is rotated, the protruding key and the corresponding recess are circumferentially staggered, at this moment, the radial contraction of the anti-disengagement clamping spring is limited by the protruding key, and the anti-disengagement clamping spring cannot be disengaged from between the connecting nut and the anti-disengagement washer.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, specifically relating to a snap ring anti-detachment connector. Background Technology

[0002] The existing product structure of the XC158 series plug connectors is as follows: Figure 1 As shown, the assembly includes a spline housing 1, a connecting nut 2 rotatably disposed on the outer periphery of the front end of the spline housing 1, a corrugated spring 4 disposed between the spline housing 1 and the connecting nut 2, and an insulator component 8 positioned and assembled within the spline housing 1. The connecting nut 2 and the spline housing 1 are connected by an axial stop engagement between a retaining ring 6 disposed in the inner annular groove at the tail end of the connecting nut 2 and a washer 7 disposed on the outer periphery of the spline housing 1, with its front end face stopped and limited by the stepped surface of the outer periphery of the spline housing 1, thus achieving an axial tensile connection. The existing retaining ring 6 is typically an open elastic metal ring, compressed within a retaining ring groove on the connecting nut. The inner diameter of the retaining ring groove on the connecting nut keeps the retaining ring in a compressed state. Its cross-section is a rectangular structure, capable of withstanding the axial force of the insulator component, ensuring reliable assembly of the product.

[0003] The outer circumferential surface of the washer 7 is a stepped surface that is higher at the front and lower at the back. The front end face of the washer 7 is stopped and limited by the front end face of the retaining spring 6, and the rear end is located inside the annular groove on the connecting nut for assembling the retaining spring 6, and a gap Z is formed between the washer 7 and the connecting nut 2. Figure 2 As shown, this gap Z is used to assemble the snap ring.

[0004] When the connector is subjected to significant vibration and impact, in the screw-on state of the connector head, the retaining ring 6 will be restricted in its rotation. Under the frictional force between the retaining ring 6 and the retaining ring groove wall, it will shrink and deform, resulting in a reduction in its outer diameter. Figure 3 As shown, the snap ring 6 disengages from the gap Z, causing the product to fail to lock and lose its connection function. Summary of the Invention

[0005] To solve the above problems, the present invention provides a novel snap ring anti-detachment connector, which enables the quick assembly of the snap ring and the prevention of detachment after assembly through the concave-convex fit between the snap ring and the anti-detachment washer.

[0006] The objective of this invention and the technical problem it solves are achieved by the following technical solution. According to this invention, a snap ring anti-disengagement connector includes a spline housing 1 and a connecting nut 2 rotatably disposed on the outer periphery of the spline housing 1. The connecting nut 2 has a snap ring groove 21, and an anti-disengagement snap ring 9 is installed in the snap ring groove 21. The anti-disengagement snap ring 9 includes a snap ring body 91 and at least one protruding key and / or groove distributed on the inner periphery of the snap ring body 91. An anti-disengagement washer 10 is provided on the outer periphery of the spline housing 1. The anti-disengagement washer 10 includes a large-diameter section 101 at the front end and a small-diameter section 102 at the rear end. The front end face of the large-diameter section 101 engages with a first stop surface 21 on the outer periphery of the spline housing 1, and the rear end face engages with the front end face of the snap ring body 91. Stop fit; the outer periphery of the small diameter section 102 is provided with a groove and / or a protruding key that matches the inner periphery of the snap ring body 91; during assembly, the protruding key / groove on the snap ring 9 is aligned with the corresponding groove / protruding key on the snap ring 10, the snap ring 9 enters the gap between the small diameter section 102 and the connecting nut along the shaft, and enters the snap ring groove 21 after opening. At this time, the protruding key and the corresponding groove are released from circumferential restriction. Rotate the snap ring 10 or the connecting nut 2 to make the protruding key and the corresponding groove circumferentially offset. At this time, the radial contraction of the snap ring (9) is restricted by the protruding key and cannot be dislodged between the connecting nut 2 and the snap ring 10.

[0007] The objectives of this invention and the technical problems it addresses can be further achieved by the following technical measures.

[0008] The aforementioned snap ring anti-disengagement connector has multiple protruding keys spaced apart along the circumferential direction inside the snap ring body 91, and at least two protruding keys have different extension lengths along the circumferential direction. The outer circumference of the small diameter section 102 is provided with a groove corresponding to the aforementioned protruding keys. The anti-disengagement snap ring can be ensured by rotating protruding keys of different sizes to correspond to the groove of non-fitting size.

[0009] The aforementioned snap ring anti-disengagement connector has two small protruding keys 912 and one large protruding key 911 on the inner circumference of the snap ring body 91. The large protruding key 911 is located in the middle of the snap ring body 91, and the two small protruding keys 912 are located at both ends of the snap ring body 91. The anti-disengagement snap ring can be prevented by rotating the large protruding key to the position corresponding to the small groove. At this time, the rotation stroke required for the anti-disengagement snap ring to reset and disengage is larger, which can better ensure the anti-disengagement effect of the snap ring.

[0010] The aforementioned snap ring anti-disengagement connector has multiple grooves spaced circumferentially inside the snap ring body 91, with at least two grooves having different circumferential extension lengths. The outer periphery of the small diameter section 102 is provided with a convex key corresponding to the aforementioned grooves. The anti-disengagement snap ring can be ensured by rotating the convex key of different sizes to correspond to the groove of a non-fitting size.

[0011] The aforementioned snap ring anti-disengagement connector has at least one protruding key and at least one groove on the inner circumference of the snap ring body 91, and corresponding grooves and protruding keys on the outer circumference of the small diameter section 102.

[0012] In the aforementioned snap ring anti-disengagement connector, the length of the groove on the outer periphery of the small diameter section 102 extending axially is consistent with the axial extension length of the small diameter section 102.

[0013] The aforementioned snap ring anti-disengagement connector has force-applying grooves 913 on both outer sides of the snap ring body 91 for easy application of force.

[0014] The aforementioned snap ring anti-detachment connector also includes a corrugated spring between the spline housing 1 and the connecting nut 2. The corrugated spring is located between the outer circumferential platform 12 of the spline housing 1 and the anti-detachment washer 10 to prevent the connecting nut from loosening after the connector is locked with the adapter end.

[0015] In the aforementioned snap ring anti-detachment connector, an insulating pad 5 is also provided between the corrugated spring 4 and the anti-detachment pad 10 to reduce the friction between the corrugated spring 4 and the anti-detachment pad 10.

[0016] The aforementioned snap ring anti-disengagement connector also includes a second stop surface 22 inside the connecting nut 2, which is axially stopped and limited by the front end face of the ring platform 12. A washer 3 is provided between the second stop surface 22 and the ring platform 12 to reduce the rotational friction between them.

[0017] Compared with existing technologies, this invention has significant advantages and beneficial effects. Through the above technical solution, this invention achieves considerable technological advancement and practicality, and has broad industrial application value, possessing at least the following advantages: This invention replaces the existing gasket with an anti-detachment gasket with a groove / protrusion key on the outer circumference of the small diameter section, while improving the existing snap ring to an anti-detachment snap ring with a protrusion key / groove on the inner circumference that matches the groove / protrusion key on the anti-detachment gasket. After the anti-detachment snap ring is assembled into the snap ring groove, the corresponding groove and protrusion key are misaligned by rotating the connecting nut / anti-detachment gasket. At this time, when the anti-detachment snap ring retracts inward, the protrusion key will act as a blocking force, preventing the anti-detachment snap ring from retracting to the state where it disengages from the snap ring groove gap Z.

[0018] The present invention has a simple structure and can completely prevent the snap ring from loosening, thus ensuring the effectiveness of the connector. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an existing connector structure; Figure 2 for Figure 1 Partial schematic diagram; Figure 3 for Figure 2A schematic diagram showing the snap ring in the dislodged state; Figure 4 This is a schematic diagram of the structure of the snap ring anti-detachment connector of the present invention; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 This is a side view of the snap ring anti-disengagement connector of the present invention; Figure 7 This is a side view of the snap ring anti-disengagement connector of the present invention in the snap ring removable state; Figure 8 This is a schematic diagram of the anti-detachment pad of the present invention; Figure 9 This is a schematic diagram of the anti-disengagement snap ring of the present invention.

[0020] [Explanation of Key Component Symbols] 1-Spline housing, 11-First stop surface, 12-Ring platform, 2-Connecting nut, 21-Snap ring groove, 22-Second stop surface, 3-Washer, 4-Wavering spring, 5-Insulating gasket, 6-Snap ring, 7-Gasket, 8-Insulator component, 9-Anti-disengagement snap ring, 91-Snap ring body, 911-Large convex key, 912-Small convex key, 10-Anti-disengagement gasket, 101-Large diameter section, 102-Small diameter section, 1021-Large groove, 1022-Small groove. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description of the specific implementation, structure, features and effects of the snap ring anti-detachment connector proposed according to the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Please see Figure 4-9 This is a schematic diagram of the various parts of the anti-detachment connector of the present invention. The connection includes a splined housing 1 extending axially. A connecting nut 2 is rotatably provided on the outer periphery of the front end of the splined housing 1. The connecting nut 2 and the splined housing 1 are connected in an axial tensile manner through the cooperation of an anti-detachment snap ring 9 and an anti-detachment washer 10. Specifically, the anti-detachment washer 10 is sleeved on the outer periphery of the splined housing 1, and its front end face is axially stopped and limited by the first stop surface 11 on the outer periphery of the splined housing 1. The anti-detachment snap ring 9 is assembled in the annular snap ring groove 21 on the inner side of the tail of the connecting nut 2, and its inner ring protrudes from the snap ring groove 21, that is, the thickness of the anti-detachment snap ring 9 is greater than the depth of the snap ring groove 21. The front end face of the portion of the anti-detachment snap ring 9 protruding from the snap ring groove 21 is axially stopped and limited by the anti-detachment washer 10, thereby realizing the tensile connection between the connecting nut 2 and the splined housing 1.

[0023] The anti-disengagement snap ring 9 includes a C-shaped snap ring body 91. At least one large convex key 911 and at least one small convex key 912 are distributed circumferentially at intervals on the inner circumferential surface of the snap ring body 91. The circumferential extension length of the large convex key 911 of the snap ring body 91 is greater than the circumferential extension length of the small convex key 912 of the snap ring body 91. In this embodiment, there is one large convex key 911 and two small convex keys 912. Preferably, the large convex key 911 is located in the middle of the snap ring body 91, and the two small convex keys 912 are respectively located at both ends of the snap ring body 91. The number and position of the large and small convex keys can also be freely arranged as needed.

[0024] The anti-detachment washer 10 has a stepped shaft structure with a larger front diameter and a smaller rear diameter. When the connector is assembled, the large-diameter section 101 at the front end of the anti-detachment washer 10 is located in front of the anti-detachment snap ring 9, and the rear end face of the portion protruding from the small-diameter section 102 at the rear end is axially stopped and limited by the anti-detachment snap ring 9. The small-diameter section 102 at the rear end of the anti-detachment washer 10 is located inside the anti-detachment snap ring 9, and the small-diameter section 102 is provided with a large groove 1021 that matches the large protruding key 911 on the snap ring body 91 and a small groove 1022 that matches the small protruding key 912 on the snap ring body 91. During assembly, the snap ring 9 is inserted from back to front into the gap between the connecting nut 2 and the small diameter section 102 of the anti-detachment washer 10. During the assembly process, the large protruding key 911 on the inner side of the snap ring body 91 enters the large groove 1021 on the small diameter section 102, and the small protruding key 912 enters the small groove 1022 on the small diameter section 102. After the two ends of the snap ring body 91 are loosened, the snap ring body 91 opens and enters the snap ring groove 21. At this time, there is a radial gap between the snap ring 9 and the small diameter section of the anti-detachment washer 10. Rotating the connecting nut 2 causes the snap ring 9 to rotate synchronously with the connecting nut 2, or rotating the anti-disengagement washer 10 causes the large convex key 911 and small convex key 912 on the inner side of the snap ring body 91 to be misaligned with the large groove 1021 and small groove 1022 on the small diameter section 102 of the anti-disengagement washer 10. The large convex key 911 and small convex key 912 cannot radially retract into the corresponding large groove 1021 and small groove 1022. At the same time, the distance between the large convex key 911 and / or the small diameter section 912 and the outer circumference of the small diameter section 102 is less than the radial retraction distance required for the snap ring body 91 to disengage from the snap ring groove 21. That is, when the anti-disengagement snap ring 9 receives radial compressive force, the anti-disengagement washer 10 presses against the convex key on its inner side, preventing it from retracting to the radial dimension that can disengage from the snap ring groove 21, thus ensuring a reliable axial connection between the connecting nut 2 and the spline housing 1.

[0025] In this embodiment of the invention, the large convex key 911 and the small convex key 912 have the same height; the large groove 1021 and the small groove 1022 also have the same depth, which is the same as the axial extension length of the small diameter segment 102. That is, both the large groove 1021 and the small groove 1022 are grooves that penetrate the axial direction of the small diameter segment 102, and the only difference between them is the different extension lengths along the circumference of the small diameter segment 1021. Preferably, the thickness of the large groove 1021 and the small groove 1022 is also the same as the thickness of the small diameter segment 102, but this is not limited to this. In other embodiments, the thickness of the large groove 1021 and the small groove 1022 is less than the thickness of the small diameter segment 102. In this case, in the radial direction, the large groove 1021 and the small groove 1022 are grooves that are open on the outside and closed on the inside.

[0026] In this embodiment of the invention, when the connector is assembled, the large convex key 911 on the anti-detachment snap ring 9 rotates to the small groove 1022 on the anti-detachment pad 10. However, in other embodiments, it is only necessary to ensure that the large convex key 911 is misaligned with the large groove 1021 and the small convex key 912 is misaligned with the small groove 1022. The connector can be judged to be assembled in place by observing the relative positions of the convex key and the groove.

[0027] In this embodiment of the invention, the outer diameter of the large diameter section 102 of the anti-detachment gasket 10 is equivalent to the inner diameter of the connecting nut 2.

[0028] In another embodiment of the present invention, a large groove and a small groove are respectively provided on the inner side of the snap ring body 91, and a corresponding large convex key and a small convex key are provided on the outer periphery of the small diameter section 102 of the anti-detachment pad 10. The two achieve the installation, removal and anti-detachment of the anti-detachment snap ring through the cooperation of the large convex key and the large groove, and the small convex key and the small groove.

[0029] In another embodiment of the present invention, a convex key and a groove are respectively provided on the inner side of the snap ring body 91, and a groove corresponding to the convex key on the snap ring body 91 and a convex key corresponding to the groove on the snap ring body 91 are provided on the outer periphery of the small diameter section 102 of the anti-disengagement washer 10. The snap ring is installed, removed and prevented from disengaging by the concave-convex cooperation of the two. When the snap ring is assembled or disassembled, the groove and convex key on the snap ring body 91 and the small diameter section 102 correspond respectively, and the convex key enters into the corresponding groove. When the assembly is in place, the corresponding groove and convex key are separated by rotating the connecting nut 2 or the anti-disengagement washer 10, so that the convex key that cannot enter the groove restricts the radial contraction of the snap ring body 91, thereby realizing the anti-disengagement of the snap ring.

[0030] In another embodiment of the present invention, at least one convex key and a corresponding groove of the same size are respectively provided on the inner side of the snap ring body 91 and the outer periphery of the small diameter section 102 of the anti-detachment pad 10.

[0031] In other embodiments of the present invention, the outer periphery of the small-diameter section of the snap ring body 91 and the anti-detachment washer 10 may be respectively provided with at least three protruding keys or grooves of different sizes. One of the snap ring body 91 and the anti-detachment washer 10 is provided with a protruding key, and at least three of the protruding keys are of different sizes.

[0032] Both ends of the snap ring body 91 are provided with force-applying grooves 913 to facilitate the application of force. The radial dimension of the snap ring body 91 can be adjusted by pressing the two force-applying grooves 913 to realize the installation and removal of the snap ring 9. Preferably, the force-applying grooves 913 are arc-shaped grooves.

[0033] In this embodiment of the invention, a corrugated spring 4 is further provided between the spline housing 1 and the connecting nut 2. The corrugated spring 4 is used to provide the connecting nut 2 with an axial rearward elastic force relative to the spline housing, so as to prevent the connecting nut 2 from loosening under vibration after being locked with the adapter housing. Specifically, the front end of the corrugated spring 4 presses on the rear end face of the outer circumferential platform 12 of the spline housing 1, and the rear end presses on the anti-loosening washer 10.

[0034] In this embodiment, an insulating pad 5 is also provided between the corrugated spring 4 and the anti-detachment pad 10 to reduce friction between the two.

[0035] The connecting nut 2 is also provided with a second stop surface 22 that is axially stopped and limited by the front end face of the outer circumferential ring platform 12 of the spline housing 1. A washer 3 is also provided between the second stop surface 22 and the ring platform 12 to reduce the rotational friction between the two.

[0036] In this embodiment of the invention, during assembly, the anti-detachment snap ring 9 has a large protruding key 911 on its inner side aligned with the large groove 1021 on the anti-detachment pad 10, and two small protruding keys aligned with the two small grooves 1022 on the anti-detachment pad 10. After installation, the anti-detachment snap ring 9 springs open and enters the snap ring groove 21. The anti-detachment pad 10 and the anti-detachment snap ring 9 are rotated relative to each other, so that the small grooves 1022 on the anti-detachment pad 10 are aligned with the large protruding key 911 on the anti-detachment snap ring 9. When the anti-detachment snap ring 9 retracts inward, the protruding key on the anti-detachment snap ring 9 cooperates with the outer periphery of the anti-detachment pad 10 to play a blocking role, preventing the anti-detachment snap ring 10 from retracting into the snap ring groove gap and thus dislodging.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. 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 invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A snap ring anti-detachment connector, comprising a splined housing (1) and a connecting nut (2) rotatably disposed on the outer periphery of the splined housing (1), wherein the connecting nut (2) is provided with a snap ring groove (21), characterized in that: The retaining ring groove (21) is equipped with an anti-disengagement retaining ring (9), which includes a retaining ring body (91) and at least one protruding key and / or groove distributed on the inner circumference of the retaining ring body (91); the outer circumference of the spline housing (1) is provided with an anti-disengagement washer (10), which includes a large-diameter section (101) at the front end and a small-diameter section (102) at the rear end, wherein the front end face of the large-diameter section (101) is engaged with the first stop surface (21) on the outer circumference of the spline housing (1), and the rear end face is engaged with the retaining ring body. The front end face of the body (91) is stopped and fitted; the outer periphery of the small diameter section (102) is provided with a groove and / or a protruding key that matches the protruding key and / or groove of the inner periphery of the snap ring body (91); during assembly, the protruding key / groove on the anti-disengage snap ring (9) is aligned with the corresponding groove / protruding key on the anti-disengagement washer (10), the anti-disengage snap ring (9) enters the gap between the small diameter section (102) and the connecting nut in the front-back direction, and enters the snap ring groove (21) after radial opening. At this time, the protruding key and the corresponding groove release the circumferential limit; Rotate the anti-disengagement washer (10) or connecting nut (2) to make the convex key and the corresponding groove circumferentially offset. At this time, the convex key is used to limit the radial contraction of the anti-disengagement snap ring (9) to prevent the snap ring from coming out through the gap.

2. The retaining ring anti-disengagement connector according to claim 1, characterized in that: The snap ring body (91) has multiple protruding keys distributed circumferentially, and at least two protruding keys have different circumferential extension lengths. The outer periphery of the small diameter section (102) is provided with a groove corresponding to the protruding keys.

3. The retaining ring anti-disengagement connector according to claim 2, characterized in that: The inner circumference of the snap ring body (91) is provided with two small protruding keys (912) and one large protruding key (911), wherein the large protruding key (911) is located in the middle of the snap ring body (91), and the two small protruding keys (912) are located at both ends of the snap ring body (91).

4. The retaining ring anti-disengagement connector according to claim 1, characterized in that: The snap ring body (91) has multiple grooves spaced apart along the circumferential direction, and at least two grooves have different circumferential extension lengths. The outer periphery of the small diameter section (102) is provided with a protruding key corresponding to the grooves.

5. The retaining ring anti-disengagement connector according to claim 1, characterized in that: The inner circumference of the snap ring body (91) is provided with at least one protruding key and at least one groove, and the outer circumference of the small diameter section (102) is provided with a corresponding groove and protruding key.

6. The retaining ring anti-disengagement connector according to any one of claims 1-3 or 5, characterized in that: The length of the groove on the outer periphery of the small diameter section (102) along the axial direction is the same as the length of the axial extension of the small diameter section (102).

7. The retaining ring anti-disengagement connector according to any one of claims 1-5, characterized in that: The outer sides of both ends of the snap ring body (91) are provided with force-applying grooves (913) to facilitate the application of force.

8. The retaining ring anti-disengagement connector according to any one of claims 1-5, characterized in that: A corrugated spring is also provided between the spline housing (1) and the connecting nut (2), and the corrugated spring is located between the outer circumferential ring (12) of the spline housing (1) and the anti-detachment gasket (10).

9. The retaining ring anti-disengagement connector according to claim 8, characterized in that: An insulating pad (5) is also provided between the corrugated spring (4) and the anti-detachment pad (10).

10. The retaining ring anti-disengagement connector according to claim 8, characterized in that: The connecting nut (2) is also provided with a second stop surface (22) that is axially stopped and limited by the front end face of the ring platform (12), and a washer (3) is provided between the second stop surface (22) and the ring platform (12).

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