Rotary arm locking device and connector

Abstract

The application relates to the technical field of connectors, in particular to a rotary arm locking device and a connector. The rotary arm locking device comprises a connector shell, a rotary arm is rotationally assembled on the connector shell, a sliding groove is arranged on the connector shell, a locking piece is slidingly assembled in the sliding groove, the locking piece comprises a first elastic arm and a second elastic arm, an anti-falling convex part is arranged on the first elastic arm, an anti-falling notch in sliding cooperation with the anti-falling convex part is arranged on the groove side wall of the sliding groove; an insertion hole for the first elastic arm to insert into and an insertion slot for the second elastic arm to insert into are arranged on the rotary arm, the opening of the insertion slot faces downward, a limiting convex part is arranged on the groove bottom wall of the insertion slot, a pressure receiving part for top pressure cooperation with the limiting convex part and a limiting hole for the limiting convex part to enter are arranged on the front end of the second elastic arm, and the pressure receiving part is located in front of the limiting hole; a blocking edge is arranged on the front end top of the sliding groove, a blocking convex part in blocking cooperation with the blocking edge is arranged on the second elastic arm, and the blocking edge avoids the blocking convex part when the limiting convex part and the pressure receiving part are in top pressure cooperation.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to a rotary arm locking device and a connector. Background Technology

[0002] Currently, in the field of electric vehicle connectors, connectors with high insertion and extraction forces require the design of a rotating arm to assist in mating. After mating, the rotating arm is locked by a locking device to ensure that the connectors do not loosen, thereby guaranteeing the quality of the circuit connection. In traditional technology, the locking plate can also be pushed forward before the rotating arm rotates to the locking position. If the locking plate is pushed forward, the rotating arm cannot be locked, which will affect the connection efficiency of the connector.

[0003] Chinese utility model patent CN215989360U discloses a locking device for a connector handle, including a connector housing, a handle (i.e., a rotating arm) rotatably mounted on the connector housing, and a locking piece (locking element) disposed on the connector housing for locking the handle. The connector housing has a groove, and the locking piece is slidably disposed within the groove. A handle is provided at the tail end of the locking piece. The locking piece includes two elastic plates and a central beam between the two elastic plates. A locking hook is provided on the elastic plates, and a notch is provided on the side wall of the groove for the locking hook to enter. When the handle is rotated to the locked position, the pressing inclined surface on the lower side of the upper boss of the handle presses against the locking hook, causing the two elastic plates to move closer to the central beam, thereby causing the locking hook to disengage from the notch. That is, the locking piece cannot be pushed when the handle is not rotated to the locked position. Afterwards, pushing the locking piece causes the locking hook to pass over the stepped structure of the groove and insert into the locking groove of the handle, thus locking the handle. The slide top plate has an anti-detachment block on its lower surface and a limiting groove extending along the sliding direction of the locking piece on the middle beam. The anti-detachment block is slidably assembled in the limiting groove to prevent the locking piece from coming out of the slide.

[0004] In the aforementioned patent, when the elastic plate of the locking piece is damaged, not only must the locking hook be squeezed towards the middle beam, but the middle beam must also be pressed towards the bottom of the slide groove in order to release the slide groove's restriction on the locking piece. However, the space inside the slide groove is relatively narrow, which is not conducive to pressing the middle beam, and thus not conducive to removing the locking piece from the slide groove. Summary of the Invention

[0005] The purpose of this invention is to provide a rotating arm locking device to solve the problem in the prior art that it is not easy to remove the locking plate from the slide groove when the elastic plate of the locking plate is damaged; the purpose of this invention is also to provide a connector to solve the above problems.

[0006] To achieve the above objectives, the technical solution of the rotating arm locking device of the present invention is as follows:

[0007] A rotating arm locking device includes a connector housing, on which a rotating arm is rotatably mounted. The connector housing has a groove, within which a locking member for locking the rotating arm is slidably mounted. The sliding direction of the locking member is the front-to-back direction. The locking member includes a first elastic arm and a second elastic arm extending in the front-to-back direction. The first elastic arm has an anti-disengagement protrusion on its side facing away from the second elastic arm. The groove sidewall has an anti-disengagement notch that slides in the front-to-back direction to engage with the anti-disengagement protrusion. The rotating arm has a socket for inserting the first elastic arm and a slot for inserting the second elastic arm. The slot opening faces downwards, and its bottom wall has a limiting protrusion. The front end of the second elastic arm has a pressure-receiving part for pressing against the limiting protrusion and a limiting hole for the limiting protrusion to enter. The pressure-receiving part is located in front of the limiting hole. The top of the front end of the groove has a retaining edge. The second elastic arm has a stopping protrusion on the left and / or right side of the limiting hole that engages with the retaining edge. When the limiting protrusion and the pressure-receiving part press against each other, the retaining edge avoids the stopping protrusion.

[0008] The beneficial effects are as follows: The rotating arm locking device of this invention utilizes the anti-disengagement protrusion on the first elastic arm and the anti-disengagement notch on the side wall of the slide groove to achieve anti-disengagement of the locking member. Furthermore, by pressing the anti-disengagement protrusion, the first elastic arm deforms towards the second elastic arm, allowing the locking member to be pulled out of the slide groove, making it easier to remove the locking member from the slide groove. Moreover, the blocking engagement of the stop protrusion and the stop edge prevents the locking member from being pushed forward when the rotating arm is not rotated to the locking position, avoiding misoperation during connector assembly. In addition, when the limiting protrusion and the pressure-bearing part press against each other, the stop edge avoids the stop protrusion, pushing the locking member forward so that the first elastic arm can be inserted into the insertion hole and the second elastic arm can be inserted into the slot. Simultaneously, the limiting protrusion in the slot can enter the limiting hole of the second elastic arm, thereby achieving locking of the rotating arm.

[0009] As a further improvement, the rear side of the limiting protrusion is located behind the edge of the insertion hole, and the front end of the slide groove is provided with a relief groove for avoiding the limiting protrusion.

[0010] The beneficial effects are: this design helps to ensure that the first elastic arm and the second elastic arm are of equal length, thereby ensuring the depth of the first elastic arm inserted into the socket and improving the stability of the rotating arm when locking.

[0011] As a further improvement, the clearance groove is a trapezoidal groove or a V-shaped groove.

[0012] As a further improvement, there are two first elastic arms, with a second elastic arm positioned between the two first elastic arms.

[0013] The beneficial effects are: the two first elastic arms not only ensure uniform force distribution, but also ensure the stability of the rotating arm after locking.

[0014] As a further improvement, the bottom of the chute is provided with a support rib extending in the front-back direction. There are two support ribs, each of which is supported and cooperates with a corresponding first elastic arm.

[0015] The beneficial effect is that, compared to machining the clearance groove below the second elastic arm at the bottom of the chute, this design can ensure the strength of the location of the chute.

[0016] As a further improvement, the front side of the anti-detachment protrusion is a slope, and the rear side of the anti-detachment protrusion is a straight surface.

[0017] The beneficial effects are: this design, through the guide of the inclined surface, causes the two first elastic arms to deform into the second elastic arm, which is conducive to the insertion of the locking part into the slide groove; through the cooperation of the straight surface and the rear wall surface of the anti-loosening notch, the locking part is not easy to come out of the slide groove.

[0018] As a further improvement, when the stop edge and the stop protrusion are engaged, the rear side of the anti-detachment protrusion is arranged to be closely attached to the rear wall of the anti-detachment notch.

[0019] The beneficial effect is that this design ensures that the locking element remains fixed in the groove before the rotating arm rotates to the locking position.

[0020] As a further improvement, both the front side of the limiting protrusion and the rear side of the stopping protrusion are inclined surfaces.

[0021] The beneficial effect is that this design makes it easier to pull the locking element backward to unlock the rotating arm.

[0022] As a further improvement, the connector housing includes a housing body and a tail cover. A transmission plate is slidably mounted on the housing body in the front-to-back direction. A gear is provided on the rotating arm of the rotating arm locking device. The transmission plate is provided with a rack that meshes with the gear and a locking groove for the protrusion on the corresponding connector to enter.

[0023] To achieve the above objectives, the technical solution of the connector of the present invention is as follows:

[0024] The connector includes a rotating arm locking device, which comprises a connector housing, a contact element installed within the connector housing, a rotating arm rotatably mounted on the connector housing, and a groove on the connector housing. A locking element for locking the rotating arm is slidably mounted within the groove, with the sliding direction of the locking element being the front-to-back direction. The locking element includes a first elastic arm and a second elastic arm extending in the front-to-back direction. An anti-detachment protrusion is provided on the side of the first elastic arm facing away from the second elastic arm. The sidewall of the groove has a feature that slidably engages with the anti-detachment protrusion in the front-to-back direction. Anti-detachment notch; the rotating arm is provided with an insertion hole for the first elastic arm to be inserted and a slot for the second elastic arm to be inserted. The slot opening faces downward and a limiting protrusion is provided on the bottom wall of the slot. The front end of the second elastic arm is provided with a pressure receiving part for pressing and engaging with the limiting protrusion and a limiting hole for the limiting protrusion to enter. The pressure receiving part is located in front of the limiting hole. The top of the front end of the slide groove is provided with a stop edge. The second elastic arm is provided with a stop protrusion on the left and / or right side of the limiting hole, which is engaged with the stop edge. When the limiting protrusion and the pressure receiving part press and engage, the stop edge avoids the stop protrusion.

[0025] The beneficial effects are as follows: The rotating arm locking device of this invention utilizes the anti-disengagement protrusion on the first elastic arm and the anti-disengagement notch on the side wall of the slide groove to achieve anti-disengagement of the locking member. Furthermore, by pressing the anti-disengagement protrusion, the first elastic arm deforms towards the second elastic arm, allowing the locking member to be pulled out of the slide groove, making it easier to remove the locking member from the slide groove. Moreover, the blocking engagement of the stop protrusion and the stop edge prevents the locking member from being pushed forward when the rotating arm is not rotated to the locking position, avoiding misoperation during connector assembly. In addition, when the limiting protrusion and the pressure-bearing part press against each other, the stop edge avoids the stop protrusion, pushing the locking member forward so that the first elastic arm can be inserted into the insertion hole and the second elastic arm can be inserted into the slot. Simultaneously, the limiting protrusion in the slot can enter the limiting hole of the second elastic arm, thereby achieving locking of the rotating arm.

[0026] As a further improvement, the rear side of the limiting protrusion is located behind the edge of the insertion hole, and the front end of the slide groove is provided with a relief groove for avoiding the limiting protrusion.

[0027] The beneficial effects are: this design helps to ensure that the first elastic arm and the second elastic arm are of equal length, thereby ensuring the depth of the first elastic arm inserted into the socket and improving the stability of the rotating arm when locking.

[0028] As a further improvement, the clearance groove is a trapezoidal groove or a V-shaped groove.

[0029] As a further improvement, there are two first elastic arms, with a second elastic arm positioned between the two first elastic arms.

[0030] The beneficial effects are: the two first elastic arms not only ensure uniform force distribution, but also ensure the stability of the rotating arm after locking.

[0031] As a further improvement, the bottom of the chute is provided with a support rib extending in the front-back direction. There are two support ribs, each of which is supported and cooperates with a corresponding first elastic arm.

[0032] The beneficial effect is that, compared to machining the clearance groove below the second elastic arm at the bottom of the chute, this design can ensure the strength of the location of the chute.

[0033] As a further improvement, the front side of the anti-detachment protrusion is a slope, and the rear side of the anti-detachment protrusion is a straight surface.

[0034] The beneficial effects are: this design, through the guide of the inclined surface, causes the two first elastic arms to deform into the second elastic arm, which is conducive to the insertion of the locking part into the slide groove; through the cooperation of the straight surface and the rear wall surface of the anti-loosening notch, the locking part is not easy to come out of the slide groove.

[0035] As a further improvement, when the stop edge and the stop protrusion are engaged, the rear side of the anti-detachment protrusion is arranged to be closely attached to the rear wall of the anti-detachment notch.

[0036] The beneficial effect is that this design ensures that the locking element remains fixed in the groove before the rotating arm rotates to the locking position.

[0037] As a further improvement, both the front side of the limiting protrusion and the rear side of the stopping protrusion are inclined surfaces.

[0038] The beneficial effect is that this design makes it easier to pull the locking element backward to unlock the rotating arm.

[0039] As a further improvement, the connector housing includes a housing body and a tail cover. A transmission plate is slidably mounted on the housing body in the front-to-back direction. A gear is provided on the rotating arm of the rotating arm locking device. The transmission plate is provided with a rack that meshes with the gear and a locking groove for the protrusion on the corresponding connector to enter. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the connector structure of the present invention;

[0041] Figure 2 for Figure 1 A schematic diagram of the structure after removing the shell body;

[0042] Figure 3 for Figure 1 A schematic diagram showing the locking mechanism in the unlocked state after the rotating arm is removed;

[0043] Figure 4 for Figure 1 A schematic diagram showing the locking mechanism in a locked state after the rotating arm is removed;

[0044] Figure 5 for Figure 4 A schematic diagram of the structure after removing the locking components;

[0045] Figure 6 for Figure 1 Schematic diagram of the rotating arm;

[0046] Figure 7 for Figure 1 Schematic diagram of the central locking component;

[0047] Figure 8 for Figure 1 A cross-sectional view of the locking element in the unlocked state;

[0048] Figure 9 for Figure 8 Sectional view along the middle AA direction;

[0049] Figure 10 for Figure 1 A schematic diagram of the locking component in the locked state;

[0050] Figure 11 for Figure 10 Sectional view along the BB direction.

[0051] In the diagram: 11. Shell body; 12. Tail cover; 13. Rotating arm; 14. Anti-detachment protrusion; 15. Anti-detachment notch; 16. Locking element; 17. Slide groove; 18. Transmission plate; 19. Rack; 20. Lock groove; 21. Gear; 22. Clearance groove; 23. Perforation; 24. Support rib; 25. Insertion hole; 26. Slot; 27. Limiting protrusion; 28. First elastic arm; 29. ​​Second elastic arm; 30. Limiting hole; 31. Stopping protrusion; 32. Pressure-bearing part; 33. Stop edge. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Additionally, the terms "front," "rear," "upper," "lower," "left," and "right" are based on the orientation and positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention, not to indicate that the referred device or component must have a specific orientation, and therefore should not be construed as limiting the invention.

[0055] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0056] Embodiment 1 of the connector of the present invention:

[0057] like Figure 1 and Figure 2 As shown, the connector includes a rotating arm locking device, which includes a housing body 11, a tail cover 12, and a rotating arm 13 rotatably mounted on the tail cover 12. A contact element is installed inside the housing body 11. The housing body 11 and the tail cover 12 together constitute the connector housing.

[0058] In this embodiment, the tail cover 12 is provided with a sliding groove 17, and a locking member 16 for locking the rotating arm 13 is slidably assembled in the sliding groove 17. Taking the sliding direction of the locking member 16 on the tail cover 12 as the front-back direction, a transmission plate 18 is slidably assembled on the shell body 11 along the front-back direction. A gear 21 is provided at the lower part of the rotating arm 13, and a rack 19 that meshes with the gear 21 is provided at the upper part of the transmission plate 18. During the rotation of the rotating arm 13, the front-back sliding of the transmission plate 18 is realized through the meshing of the gear 21 and the rack 19. A locking groove 20 is provided on the transmission plate 18 for the protrusions on the corresponding connectors to enter. During the process of the transmission plate 18 moving from back to front, the protrusions on the corresponding connectors gradually move towards the rear of the locking groove 20 relative to the transmission plate 18, so that the connectors approach each other and complete the mating.

[0059] like Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, the locking member 16 includes a first elastic arm 28 and a second elastic arm 29 extending in the front-rear direction. There are two first elastic arms 28, and the second elastic arm 29 is located between the two first elastic arms 28.

[0060] In this embodiment, the first elastic arm 28 has an anti-detachment protrusion 14 on the side facing away from the second elastic arm 29, and the groove sidewall of the slide groove 17 has an anti-detachment notch 15. The anti-detachment protrusion 14 and the anti-detachment notch 15 slide in a front-back direction. The front side of the anti-detachment protrusion 14 is a slope, and the rear side of the anti-detachment protrusion 14 is a straight surface. This design guides the two first elastic arms 28 to deform towards the second elastic arm 29 through the slope, which is conducive to the insertion of the locking member 16 into the slide groove 17. The straight surface cooperates with the rear wall of the anti-detachment notch 15, making it difficult for the locking member 16 to fall out of the slide groove 17. The locking member 16 can only be pulled out of the slide groove 17 by pressing the anti-detachment protrusion 14 to deform the first elastic arm 28 towards the second elastic arm 29.

[0061] like Figures 5 to 7 As shown, the rotating arm 13 is provided with a socket 25 for inserting the first elastic arm 28 and a slot 26 for inserting the second elastic arm 29. There are two sockets 25 and the slot 26 is located between the two sockets. The opening of the slot 26 faces downward and a limiting protrusion 27 is provided on the bottom wall of the slot 26.

[0062] In this embodiment, the front end of the second elastic arm 29 is provided with a pressure-receiving part 32 for pressing against the limiting protrusion 27 and a limiting hole 30 for the limiting protrusion 27 to enter. The pressure-receiving part 32 is located in front of the limiting hole 30. The top of the front end of the slide groove 17 is provided with a stop edge 33. The second elastic arm 29 is provided with a stop protrusion 31 on the left and right sides of the limiting hole 30 to stop against the stop edge 33. When the limiting protrusion 27 presses against the pressure-receiving part 32, the front end of the second elastic arm 29 undergoes elastic deformation and moves downward, thereby causing the stop edge 33 to avoid the stop protrusion 31. Then, the locking member 16 is pushed forward, so that the limiting protrusion 27 enters into the limiting hole 30. At the same time, the first elastic arm 28 is inserted into the insertion hole 25, and the second elastic arm 29 is inserted into the slot 26, thereby locking the rotating arm 13.

[0063] In this embodiment, when the stop edge 33 and the stop protrusion 31 are engaged, the rear side of the anti-detachment protrusion 14 is closely arranged with the rear wall of the anti-detachment notch 15, so that the locking member 16 is fixed in the slide groove 17; while when the limiting protrusion 27 enters the limiting hole 30, the front side of the anti-detachment protrusion 14 is closely arranged with the front wall of the anti-detachment notch 15.

[0064] In this embodiment, both the front side of the limiting protrusion 27 and the rear side of the stopping protrusion 31 are sloped. This design facilitates pulling the locking member 16 backward to unlock the rotating arm 13.

[0065] like Figure 5 and Figure 7 As shown, the bottom of the groove 17 is provided with support ribs 24 extending in the front-to-back direction. There are two support ribs 24, each supporting and cooperating with the corresponding first elastic arm 28. This design allows the second elastic arm 29 to be suspended, which is beneficial for the front end of the second elastic arm 29 to elastically deform and move downward.

[0066] like Figure 5 and Figure 6 As shown, the rear side of the limiting protrusion 27 is located behind the edge of the insertion hole 25, meaning the limiting protrusion 27 is positioned further back than the insertion hole 25. The front end of the slide groove 17 is provided with a relief groove 22 to avoid the limiting protrusion 27. Preferably, the relief groove 22 is an isosceles trapezoidal groove. This design helps ensure that the first elastic arm 28 and the second elastic arm 29 are of equal length, thereby ensuring the depth of the first elastic arm 28 inserted into the insertion hole 25 and improving the stability of the rotating arm 13 during locking. In other embodiments, the relief groove can be a right-angled trapezoidal groove or a V-shaped groove.

[0067] Before the connector is mated with the corresponding connector, part of the transmission plate 18 is exposed outside the housing body 11. During the mating process, the rotating arm 13 is rotated to drive the transmission plate 18 forward, and the locking groove 20 on the transmission plate 18 pulls the protrusion on the corresponding connector, so that the connector and the corresponding connector come closer to each other to complete the mating.

[0068] like Figure 8 and Figure 9 As shown, when the rotating arm 13 rotates to the locked position, the limiting protrusion 27 on it presses against the pressure receiving part 32, causing the front end of the second elastic arm 29 to elastically deform and move downward. At this time, the stop 33 avoids the stop protrusion 31; then, it pushes the locking member 16 forward, as shown. Figure 10 and Figure 11 As shown, the stop protrusion 31 passes over the stop edge 33, the limiting protrusion 27 enters the limiting hole 30, and at the same time, the first elastic arm 28 passes through the through hole 23 and is inserted into the insertion hole 25, and the second elastic arm 29 is inserted into the slot 26, thereby locking the rotating arm 13.

[0069] When the rotating arm 13 needs to be unlocked, simply pull the locking member 16 backward. Since the front side of the limiting protrusion 27 and the rear side of the stopping protrusion 31 are both sloped, the locking member 16 can be pulled backward relatively easily by utilizing the pressing engagement between the front side of the limiting protrusion 27 and the edge of the limiting hole 30, and the pressing engagement between the rear side of the stopping protrusion 31 and the stop edge 33.

[0070] Embodiment 2 of the connector of the present invention:

[0071] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the limiting protrusion is located further back than the insertion hole, and the front end of the slide groove is provided with a clearance groove to avoid the limiting protrusion. In this embodiment, the front end of the slide groove is not provided with a clearance groove, the limiting protrusion is flush with the insertion hole, and the second elastic arm is longer than the first elastic arm. When the stop edge and the stop protrusion are in a limiting engagement, the pressure-bearing part of the second elastic arm is exposed outside the slide groove.

[0072] Embodiment 3 of the connector of the present invention:

[0073] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the bottom of the chute is provided with supporting ribs extending in the front-to-back direction, and there are two supporting ribs, each of which is supported and cooperates with the corresponding first elastic arm. In this embodiment, the bottom of the chute is not provided with supporting ribs, but instead a clearance groove is provided below the second elastic arm. In this case, the tail cover needs to be thickened at the location of the clearance groove to ensure the strength of that location.

[0074] Embodiment 4 of the connector of the present invention:

[0075] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, there are two first elastic arms, and the second elastic arm is located between the two first elastic arms. In this embodiment, there is only one first elastic arm, and the side of the second elastic arm facing away from the first elastic arm is arranged close to the side wall of the groove.

[0076] Embodiment 5 of the connector of the present invention:

[0077] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the front side of the anti-detachment protrusion is a slope, and the rear side of the anti-detachment protrusion is a straight surface. In this embodiment, both the front and rear sides of the anti-detachment protrusion are straight surfaces. In other embodiments, both the front and rear sides of the anti-detachment protrusion are sloped, and the front and rear sides are arranged in parallel.

[0078] Embodiment 6 of the connector of the present invention:

[0079] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, when the stop edge and the stop protrusion are engaged, the rear side of the anti-detachment protrusion is arranged close to the rear wall of the anti-detachment notch. In this embodiment, when the stop edge and the stop protrusion are engaged, the rear side of the anti-detachment protrusion is arranged with a gap between it and the rear wall of the anti-detachment notch. At this time, the locking member can have a certain amount of movement in the slide groove, but will not come out of the slide groove.

[0080] The embodiment of the rotating arm locking device of the present invention has the same structure as the rotating arm locking device in any one of the embodiments 1 to 6 of the connector described above, and will not be described again here.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A rotating arm locking device, comprising a connector housing, on which a rotating arm (13) is rotatably mounted, and a groove (17) is provided on the connector housing, within which a locking element (16) for locking the rotating arm (13) is slidably mounted, characterized in that, Taking the sliding direction of the locking member (16) as the front-back direction, the locking member (16) includes a first elastic arm (28) and a second elastic arm (29) extending in the front-back direction. The first elastic arm (28) has an anti-disengagement protrusion (14) on the side facing away from the second elastic arm (29). The groove sidewall of the slide groove (17) has an anti-disengagement notch (15) that slides in the front-back direction with the anti-disengagement protrusion (14). The rotating arm (13) has an insertion hole (25) for inserting the first elastic arm (28) and a slot (26) for inserting the second elastic arm (29). The opening of the slot (26) faces downward and a limiting protrusion (27) is provided on its bottom wall. The front end of the second elastic arm (29) has a pressure receiving part (32) for pressing and engaging with the limiting protrusion (27). The limiting hole (30) for the limiting protrusion (27) to enter is located in front of the limiting hole (30); the top of the front end of the slide groove (17) is provided with a stop edge (33), and the second elastic arm (29) is provided with a stop protrusion (31) on the left and / or right side of the limiting hole (30) to stop and cooperate with the stop edge (33). When the limiting protrusion (27) and the pressure part (32) are pressed together, the stop edge (33) avoids the stop protrusion (31), and then pushes the locking member forward so that the limiting protrusion enters the limiting hole. At the same time, the first elastic arm is inserted into the insertion hole and the second elastic arm is inserted into the slot to lock the rotating arm. The rear side of the limiting protrusion is located behind the hole edge of the insertion hole, and the front end of the slide groove is provided with a relief groove for avoiding the limiting protrusion.

2. The rotating arm locking device according to claim 1, characterized in that, The clearance groove (22) is a trapezoidal groove or a V-shaped groove.

3. The rotating arm locking device according to claim 1 or 2, characterized in that, There are two first elastic arms (28), and the second elastic arm (29) is located between the two first elastic arms (28).

4. The rotating arm locking device according to claim 3, characterized in that, The bottom of the groove (17) is provided with a support rib (24) extending in the front-back direction. There are two support ribs (24) and they are respectively supported and cooperated with the corresponding first elastic arm (28).

5. The rotating arm locking device according to claim 1 or 2, characterized in that, The front side of the anti-detachment protrusion (14) is a slope, and the rear side of the anti-detachment protrusion (14) is a straight surface.

6. The rotating arm locking device according to claim 1 or 2, characterized in that, When the stop edge (33) and the stop protrusion (31) are engaged, the rear side of the anti-detachment protrusion (14) is closely arranged with the rear wall of the anti-detachment notch (15).

7. The rotating arm locking device according to claim 1 or 2, characterized in that, The front side of the limiting protrusion (27) and the rear side of the stopping protrusion (31) are both inclined surfaces.

8. The rotating arm locking device according to claim 1 or 2, characterized in that, The connector housing includes a housing body (11) and a tail cover (12). A transmission plate (18) is slidably mounted on the housing body (11) in the front-back direction. A gear (21) is provided on the rotating arm (13). A rack (19) meshing with the gear (21) and a locking groove (20) for the protrusion on the corresponding connector to enter are provided on the transmission plate (18).

9. A connector, including a rotating arm locking device, characterized in that, The rotating arm locking device includes a connector housing, on which a rotating arm (13) is rotatably mounted. A groove (17) is provided on the connector housing, and a locking member (16) for locking the rotating arm (13) is slidably mounted within the groove (17). The locking member (16) is characterized by having the sliding direction of the locking member (16) as the front-back direction. The locking member (16) includes a first elastic arm (28) and a second elastic arm (29) extending in the front-back direction. The first elastic arm (28) has an anti-detachment protrusion (14) on its side facing away from the second elastic arm (29). The groove sidewall of the groove (17) has an anti-detachment notch (15) that slides in the front-back direction and engages with the anti-detachment protrusion (14). The rotating arm (13) has an insertion hole (25) for inserting the first elastic arm (28) and a slot (26) for inserting the second elastic arm (29). The slot (26) has an opening facing downwards and a limiting protrusion (27) on its bottom wall. The second elastic arm... The front end of the arm (29) is provided with a pressure-receiving part (32) for pressing against the limiting protrusion (27) and a limiting hole (30) for the limiting protrusion (27) to enter. The pressure-receiving part (32) is located in front of the limiting hole (30). The top of the front end of the slide groove (17) is provided with a stop edge (33). The second elastic arm (29) is provided with a stop protrusion (31) on the left and / or right side of the limiting hole (30) for stopping against the stop edge (33). When the retaining edge (33) is pressed against the pressure part (32), it avoids the stop protrusion (31), and then pushes the locking member forward so that the limiting protrusion enters the limiting hole. At the same time, the first elastic arm is inserted into the insertion hole and the second elastic arm is inserted into the slot to lock the rotating arm. The rear side of the limiting protrusion is located behind the hole edge of the insertion hole, and the front end of the slide groove is provided with a relief groove for avoiding the limiting protrusion. The connector housing of the rotating arm locking device is equipped with a contact member.

10. The connector according to claim 9, characterized in that, The clearance groove (22) is a trapezoidal groove or a V-shaped groove.

11. The connector according to claim 9 or 10, characterized in that, There are two first elastic arms (28), and the second elastic arm (29) is located between the two first elastic arms (28).

12. The connector according to claim 11, characterized in that, The bottom of the groove (17) is provided with a support rib (24) extending in the front-back direction. There are two support ribs (24) and they are respectively supported and cooperated with the corresponding first elastic arm (28).

13. The connector according to claim 9 or 10, characterized in that, The front side of the anti-detachment protrusion (14) is a slope, and the rear side of the anti-detachment protrusion (14) is a straight surface.

14. The connector according to claim 9 or 10, characterized in that, When the stop edge (33) and the stop protrusion (31) are engaged, the rear side of the anti-detachment protrusion (14) is closely arranged with the rear wall of the anti-detachment notch (15).

15. The connector according to claim 9 or 10, characterized in that, The front side of the limiting protrusion (27) and the rear side of the stopping protrusion (31) are both inclined surfaces.

16. The connector according to claim 9 or 10, characterized in that, The connector housing includes a housing body (11) and a tail cover (12). A transmission plate (18) is slidably mounted on the housing body (11) in the front-back direction. A gear (21) is provided on the rotating arm (13). A rack (19) meshing with the gear (21) and a locking groove (20) for the protrusion on the corresponding connector to enter are provided on the transmission plate (18).

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