Pre-locking piece and female end connector

Abstract

A convex ring protruding backwards is arranged in an inner cavity of a body, a first annular groove is formed between the convex ring and the inner wall of the body, at least two split grooves are formed in the upper side wall and the lower side wall of the convex ring respectively, a spring bolt is formed between every two adjacent split grooves, a limiting hole is formed in each spring bolt, and the limiting holes are matched with the first annular groove and the second annular groove. A guide inclined face is arranged on the outer side wall of the rear end of the spring bolt, a plurality of locking blocks protruding inwards are further arranged on the inner wall of the body, the rear side walls of the locking blocks are inclined walls, the pre-locking blocks are located in limiting holes of the spring bolt, the locking blocks are clamped in the locking holes, the contact assembly is installed in the shell, and the front end of the contact assembly is installed in an inner cavity of the protruding ring. The beneficial effects of the utility model are that the locking member and the housing have a pre-locking state and a locking state, during delivery, the locking member and the female housing are in the pre-locking state, delivery can be carried out together, the waste of materials is reduced, and during assembly by a customer, the contact assembly only needs to be installed in place, and then the locking member is pushed, so that the locking member and the housing are locked.

Description

Technical Field

[0001] This utility model relates to connectors, and in particular to a pre-locking component and a female connector. Background Technology

[0002] When using a female connector, a locking element is required to install the contact assembly. Typically, a female connector includes a locking element, a contact assembly, and a female base. These components are shipped as individual parts, which the customer then assembles. However, installing the locking element during assembly is extremely troublesome, and the individual parts are also prone to damage during transportation. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a pre-locking component and a female connector.

[0004] The purpose of this utility model is achieved through the following technical solution: a pre-locking component, including a body, the inner cavity of the body is provided with a rearward protruding ring, and a first annular groove is formed between the protruding ring and the inner wall of the body. At least two slots are provided on the upper and lower side walls of the protruding ring, and a locking tongue is formed between two adjacent slots. A limiting hole is provided on the locking tongue, and a guide slope is provided on the outer side wall of the rear end of the locking tongue. A plurality of inwardly protruding locking blocks are also provided on the inner wall of the body, and the rear side wall of the locking blocks is an inclined wall.

[0005] A female connector includes a pre-locking member, a housing, and a contact assembly. The front end of the housing has a mounting cavity and a second annular groove. The mounting cavity is located within the second annular groove, and an annular insertion portion is formed between the mounting cavity and the second annular groove. An inwardly protruding pre-locking block is provided on the inner wall of the annular insertion portion. A locking hole is provided on the annular insertion portion. The pre-locking member is installed at the front end of the housing, and the pre-locking block is located within the limiting hole of the locking tongue. The locking block is engaged within the locking hole. The contact assembly is installed within the housing, and the front end of the contact assembly is installed within the inner cavity of the protruding ring.

[0006] Optionally, the inner cavity of the pre-locking component is also provided with a rearwardly protruding cross partition. The outer edge of the cross partition is connected to the inner wall of the convex ring, and the cross partition divides the inner cavity of the convex ring into four cavities. The housing is provided with mounting holes corresponding to the convex ring cavities, and the rear end of the contact component is located in the corresponding mounting hole.

[0007] Optionally, four elastic arms are provided on the left and right sidewalls of the convex ring, each located on the rear side of the corresponding inner cavity of the convex ring.

[0008] Optionally, the inner wall of the elastic arm is an arc-shaped inner wall.

[0009] Optionally, a recessed groove is provided on the left side wall of the mounting hole on the left side, and a recessed groove is also provided on the right side wall of the mounting hole on the right side. A forward-extending anti-reverse spring arm is provided at the bottom of the recessed groove, and an inward-extending anti-reverse block is provided at the front end of the anti-reverse spring arm. An anti-reverse slot is provided in the middle of the contact component, and the anti-reverse block is located in the anti-reverse slot.

[0010] Optionally, the rear end of the elastic arm is also provided with a rearwardly extending guard arm, the inner side of which presses against the outer wall of the front end of the anti-rebound elastic arm.

[0011] Optionally, locking blocks are provided on the left and right inner walls of the pre-locking component.

[0012] Optionally, a positioning hole is provided at the intersection of the cross-shaped partitions, and a positioning post extending forward is provided in the middle of the mounting cavity of the housing, with the positioning post inserted into the positioning hole.

[0013] The present invention has the following advantages: The female connector of the present invention has a pre-locked state and a locked state between the locking member and the housing. When shipped, the locking member and the female housing are in a pre-locked state and can be shipped together to reduce material waste. When the customer assembles, he / she only needs to install the contact components in place and then push the locking member to lock the locking member and the housing, which makes it convenient for the customer to assemble the female connector. Attached Figure Description

[0014] Figure 1 Schematic diagram of the locking mechanism Figure 1 ;

[0015] Figure 2 Schematic diagram of the locking mechanism Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the female connector structure;

[0017] Figure 4 This is a schematic diagram of the structure when the locking element and the housing are in a pre-locked state.

[0018] Figure 5 A schematic diagram of the structure after the locking components, contact assembly, and housing are assembled.

[0019] Figure 6 This is a schematic diagram of the shell structure;

[0020] Figure 7 A schematic diagram of the structure of the compression anti-reverse spring arm for the guard arm;

[0021] In the figure, 1-pre-locking component, 2-housing, 3-contact assembly, 11-body, 12-convex ring, 13-slotted groove, 14-locking tongue, 15-limiting hole, 16-guide slope, 17-annular groove, 18-elastic arm, 19-arc-shaped inner wall, 21-pre-locking block, 22-anti-reverse elastic arm, 23-anti-reverse groove, 24-locking hole, 25-positioning post, 26-annular insertion part, 27-second annular groove, 31-guard arm, 32-locking block, 33-positioning hole, 34-cross partition. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present 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 present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figure 3 As shown, a female connector includes a pre-locking member 1, a housing 2, and a contact assembly 3. In this embodiment, as... Figure 2 and Figure 1 As shown, the pre-locking component 1 includes a body 11. Preferably, the body 11 has a square structure. The inner cavity of the body 11 is provided with a rearwardly protruding convex ring 12. The convex ring 12 is a rectangular ring, and a first annular groove 17 is formed between the convex ring 12 and the inner wall of the body 11. The first annular groove 17 is a rectangular ring. At least two slots 13 are provided on the upper and lower side walls of the convex ring 12. A locking tongue 14 is formed between two adjacent slots 13. Preferably, three slots 13 are provided on the upper and lower side walls of the convex ring 12, that is, the convex ring 12 has two locking tongues 14. A limiting hole 15 is provided on the locking tongue 14, and a guide slope 16 is provided on the outer side wall of the rear end of the locking tongue 14. Further, as shown... Figure 6 As shown, the front end of the housing 2 has a mounting cavity and a second annular groove 27. The mounting cavity is located within the second annular groove 27, and an annular insertion portion 26 is formed between the mounting cavity and the second annular groove 27. A pre-locking block 21 protruding inward is provided on the inner wall of the annular insertion portion 26. Further, as... Figure 5 As shown, multiple inwardly protruding locking blocks 32 are also provided on the inner wall of the main body 11. Furthermore, locking blocks 32 are provided on both the left and right inner walls of the main body 11 of the pre-locking member 1. The rear side wall of the locking block 32 is an inclined wall. A locking hole 24 is provided on the annular insertion part 26. The pre-locking member 1 is installed at the front end of the housing 2, and the pre-locking block 21 is located in the limiting hole 15 of the locking tongue 14. The locking block 32 is stuck in the locking hole 24. The contact component 3 is installed in the housing 2, and the front end of the contact component 3 is installed... During installation, the pre-locking member 1 is first inserted into the front end of the housing 2 within the inner cavity of the convex ring 12. As the pre-locking member 1 is inserted, the annular insertion part 26 gradually inserts into the first annular groove 17. When the guide slope 16 contacts the pre-locking block 21, the locking tongue 14 is squeezed, thus the locking tongue 14 tilts inward, generating an elastic restoring force. When the locking tongue 14 passes the guide slope 16 and enters the limiting hole 15, the locking tongue 14 resets under the action of its elastic restoring force. At this time, if... Figure 4As shown, the pre-installation of the pre-locking component 1 is completed. The pre-locking component 1 will not be separated from the housing 2. Therefore, when shipping, the pre-installation of the pre-locking component 1 and the housing 2 will reduce the number of loose parts shipped and reduce material loss during the loose parts shipping process. When the customer uses it, they only need to install the contact component 3 inside the housing 2 and then continue to push the pre-locking component 1 so that the locking block 32 is inserted into the locking hole 24, thereby realizing the installation of the pre-locking component 1 and the housing 2. At this time, the pre-locking component 1, the housing 2 and the contact component 3 are installed in place, thus completing the assembly of the connector.

[0029] In this embodiment, as Figure 1 and Figure 2 As shown, the inner cavity of the pre-locking member 1 is also provided with a rearwardly protruding cross partition 34. The outer edges of the cross partition 34 are all connected to the inner wall of the convex ring 12, and the cross partition 34 divides the inner cavity of the convex ring 12 into four cavities. The housing 2 is provided with mounting holes corresponding to the cavities of the convex ring 12. The rear end of the contact component 3 is located in the corresponding mounting hole. That is to say, in this embodiment, there are four contact components 3, and there are also four mounting holes in the housing 2. During installation, the contact component 3 is inserted from the rear end of the mounting hole. Then, when the contact component 3 moves to the appropriate position in the mounting hole, the pre-locking member 1 is pushed to lock the pre-locking member 1 with the housing 2.

[0030] In this embodiment, as Figure 1 and Figure 2 As shown, four elastic arms 18 are provided on the left and right sidewalls of the convex ring 12, each located on the rear side of the corresponding inner cavity of the convex ring 12. When the pre-locking member 1 is pushed, the elastic arms 18 contact the contact assembly 3, causing the elastic arms 18 to deform, thereby generating an elastic restoring force. Figure 5 and Figure 7 As shown, when the pre-locking member 1 is locked to the housing 2, the elastic arm 18 can apply a clamping force to the contact component 3 under the action of its elastic restoring force, thereby hindering the axial movement of the contact component 3. Furthermore, the inner wall of the elastic arm 18 is an arc-shaped inner wall 19, while the front end of the contact component 3 has an elliptical structure. The arc-shaped inner wall 19 matches the shape of the contact component 3, thereby increasing the contact area between the arc-shaped inner wall 19 and the contact component 3, further improving the hindering effect on the axial movement of the contact component 3.

[0031] In this embodiment, as Figure 6 and Figure 7As shown, a recessed groove is formed on the left side wall of the mounting hole on the left, and a recessed groove is also formed on the right side wall of the mounting hole on the right. A forward-extending anti-rebound arm 22 is provided at the bottom of the recessed groove, and there is a clearance between the anti-rebound arm 22 and the side wall of the recessed groove, allowing the anti-rebound arm 22 to open outwards. An inwardly extending anti-rebound block is provided at the front end of the anti-rebound arm 22. An anti-rebound groove 23 is provided in the middle of the contact component 3, and the anti-rebound block is located within the anti-rebound groove 23. When the contact member is installed, after contacting the anti-rebound arm 22, the anti-rebound arm 22 opens outwards, thereby generating an elastic restoring force. As the contact member is pushed in, when the anti-rebound arm... After the anti-reverse locking groove 23 is aligned, the anti-reverse locking arm 22 enters the anti-reverse locking groove 23 under the action of elastic restoring force, thereby preventing the contact member from axially exiting the housing 2 from the rear. In this embodiment, the rear end of the elastic arm 18 is also provided with a rearward extending guard arm 31. The inner side of the guard arm 31 presses the outer side wall of the front end of the anti-reverse locking arm 22. When the anti-reverse locking arm 22 enters the anti-reverse locking groove 23, it locks the pre-locking member 1 and the housing 2. At this time, the inner side of the guard arm 31 presses the outer side wall of the front end of the anti-reverse locking arm 22, causing the anti-reverse locking arm 22 to be pressed inward, thereby preventing the anti-reverse locking arm 22 from exiting the anti-reverse locking groove 23, thereby improving the reliability of the installation of the contact member and the housing 2.

[0032] In this embodiment, a positioning hole 33 is provided at the intersection of the cross partitions 34, and a positioning post 25 extending forward is provided in the middle of the mounting cavity of the housing 2. The positioning post 25 is inserted into the positioning hole 33. Through the cooperation between the positioning post 25 and the positioning hole 33, the locking member and the housing 2 can be aligned during the installation and locking process.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prelock, characterized by: The utility model provides a prelock piece, including the body, the inner chamber of body is provided with the convex ring that protrudes back, and the first annular groove is formed between the convex ring and the body inner wall, at least two split grooves are formed on the upper and lower side wall of the convex ring, the lock tongue is formed between adjacent two split grooves, the limit hole is formed on the lock tongue, and the guide inclined surface is formed on the outer side wall of the rear end of the lock tongue, a plurality of locking blocks protrude inwardly on the inner wall of the body, and the rear side wall of the locking block is an inclined wall.

2. A female connector characterized by: The utility model provides a prelock piece, including the body, the inner chamber of body is provided with the convex ring that protrudes back, and the first annular groove is formed between the convex ring and the body inner wall, at least two split grooves are formed on the upper and lower side wall of the convex ring, the lock tongue is formed between adjacent two split grooves, the limit hole is formed on the lock tongue, and the guide inclined surface is formed on the outer side wall of the rear end of the lock tongue, a plurality of locking blocks protrude inwardly on the inner wall of the body, and the rear side wall of the locking block is an inclined wall.

3. A female connector according to claim 2, wherein: The inner chamber of the prelock piece is further provided with a cross partition plate protruding rearward, the outer edges of the cross partition plate are connected with the inner wall of the convex ring, the inner chamber of the convex ring is divided into four cavities by the cross partition plate, mounting holes corresponding to the cavities of the convex ring are formed in the shell, and the rear end of the contact assembly is located in the mounting hole.

4. A female connector according to claim 3, wherein: Elastic arms extending rearward are arranged on the left and right side walls of the convex ring, the elastic arms are four in number and are located at the rear sides of the cavities of the convex ring respectively.

5. A female connector according to claim 4, wherein: The inner wall of the elastic arm is an arc-shaped inner wall.

6. A female connector according to claim 4, wherein: A left side wall of a left mounting hole is provided with a sunken groove, a right side wall of a right mounting hole is also provided with a sunken groove, the groove bottom of the sunken groove is provided with a forwardly extending retreat-stopping elastic arm, the front end of the retreat-stopping elastic arm is provided with an inwardly extending retreat-stopping block, a retreat-stopping clamping groove is formed in the middle portion of the contact assembly, and the retreat-stopping block is located in the retreat-stopping clamping groove.

7. A female connector according to claim 6, wherein: The rear end of the elastic arm is further provided with a rearwardly extending protective arm, and the inner side of the protective arm extrudes the outer side wall of the front end of the retreat-stopping elastic arm.

8. A female connector according to any one of claims 2 to 7, wherein: Locking blocks are arranged on the left and right inner walls of the body of the prelock piece.

9. A female connector according to any one of claims 3 to 7, wherein: A positioning hole is formed at the intersection of the cross partition plate, and a positioning column extending forward is arranged in the middle portion of the mounting cavity of the shell and is inserted into the positioning hole.

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