Low-voltage cable self-locking quick connector

Abstract

The utility model discloses a low-voltage cable self-locking quick connector which comprises a female head connecting shell, a female head connecting column, a locking assembly, a male head connecting shell, a sealing assembly, a wire pressing shell, a male head wire pressing column, a female head wire pressing column and an outer sealing head. An annular groove in the locking assembly is formed in the side wall of the male head connecting shell, locking blocks are connected into the annular groove in a matched mode, and the locking blocks are connected into through grooves evenly formed in the side wall of the female head connecting shell in a sliding mode. The locking sleeve is moved to enable the limiting column to be sleeved with the unlocking notch, mutual fixation of the male head and the female head can be removed through pulling, pulling and inserting are simple, connection is stable, and the use experience of a user is improved. And a double-layer waterproof sealing structure is formed at the joint of the thread shell and the wire pressing shell through the arranged locking assembly, so that the waterproof performance of the head sleeve box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power connection, in particular to a low-voltage cable self-locking quick connector. Background Art

[0002] A cable hood usually refers to a device used to protect and connect the heads of cables, also known as a cable junction box or an optical cable junction box. Its main functions include protecting cables, connecting cables, distributing signals and managing cables. It is usually made of high-strength plastic or metal, and is filled with gel or foam material inside to provide additional protection. The existing cable hoods can basically meet daily use needs, but there are still certain shortcomings. First, the existing hoods have a simple docking structure. After connection, in order to ensure the stability of the docking, tools need to be used to fix them to each other. The fixing process is cumbersome, which affects the user's experience; second, the wire crimping shells of the existing hoods are mostly connected to the connecting shell through threaded cooperation. After connection, they rely on the tight pressure between the two for sealing. The sealing effect is poor, which affects the waterproof performance of the hood; therefore, it is necessary to design a low-voltage cable self-locking quick connector. Utility Model Content

[0003] The purpose of the utility model is to provide a low-voltage cable self-locking quick connector to solve the problems that the existing head cover box docking structure is simple, and tools need to be used to fix each other to ensure the stability of the docking after connection, and the fixing process is cumbersome, which affects the user experience; and the wire crimping shell is mostly connected to the connecting shell through threaded cooperation, and after connection, it relies on the tight pressure between the two to perform sealing, which has a poor sealing effect and affects the waterproof performance of the head cover box.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a low-voltage cable self-locking quick connector, comprising a female connecting shell, a female connecting column, a locking assembly, a male connecting shell, a sealing assembly, a male threaded shell, a female threaded shell, a crimping shell, a male crimping column, a female crimping column and an outer sealing head, wherein the male connecting shell is slidably connected to the female connecting shell, an annular groove in the locking assembly is provided on the side wall of the male connecting shell, a locking block is matched and connected in the annular groove, the locking block is slidably connected to the through grooves uniformly provided on the side wall of the female connecting shell, and a locking spring is provided between the female connecting shell and the locking block, and the female A connecting ring is rotatably connected to the side wall of the head connecting shell, and a reset spring is evenly arranged on one side of the connecting ring. One end of the reset spring is connected to the locking sleeve, and the locking sleeve is slidably connected to the female connecting shell; a male threaded shell and a female threaded shell are respectively arranged on the male connecting shell and the female connecting shell, and a compression ring in the sealing assembly is sleeved on the male threaded shell and the female threaded shell, the compression ring fits on the sealing ring, and the sealing ring is slidably connected in the closing shell, a compression spring is arranged between the closing shell and the sealing ring, the closing shell is sleeved on the wire pressing shell, and the wire pressing shell is connected to the male threaded shell and the female threaded shell through threaded cooperation.

[0005] As a further technical solution of the utility model, a female connecting column is arranged inside the female connecting shell, the female connecting column is sleeved on the male docking column, and the male docking column is embedded and installed in the male connecting shell.

[0006] As a further technical solution of the utility model, the locking assembly is composed of an annular groove, a locking block, a locking spring, a locking sleeve, a connecting ring, a reset spring, an anti-slip groove, an unlocking notch and a limit column, and the limit column is arranged on the side wall of the female head connecting shell.

[0007] As a further technical solution of the utility model, anti-slip grooves are evenly arranged on the outer wall of the locking sleeve, and unlocking notches are symmetrically arranged on the locking sleeve.

[0008] As a further technical solution of the utility model, the sealing assembly is composed of a compression ring, a closing shell, a compression spring, a sealing ring and a sealing gasket, and the sealing gasket is fixed on the wire pressing shell.

[0009] As a further technical solution of the utility model, a male wire pressing post and a female wire pressing post are respectively arranged in the male thread shell and the female thread shell.

[0010] As a further technical solution of the utility model, an external sealing head is connected to the crimping shell through threads.

[0011] The utility model provides a low-voltage cable self-locking quick connector, which has the advantages that: an annular groove is provided on the male head connection shell to cooperate with the locking block to form a quick docking structure of the male head and the female head; after the male head connection shell is inserted into the female head connection shell, the locking block is tightly pressed in the annular groove under the elastic force of the locking spring, and at the same time, the locking sleeve is tightly pressed on the locking block under the action of the reset spring to prevent the locking block from being separated from the annular groove, thereby fixing the male head connection shell to prevent it from falling off; when unlocking, the locking sleeve is rotated to align the unlocking notch with the limiting column, and then the locking sleeve is pulled to sleeve the limiting column into the unlocking notch, and the mutual fixation of the male head and the female head can be released by pulling and pulling, and the plugging and unplugging are simple and the connection is stable, which improves the user experience; after the wire pressing shell is tightly pressed on the male head threaded shell and the female head threaded shell through the thread, an inner sealing structure is formed through the sealing gasket at the connection, and at the same time, the pressing ring is pressed into the closed shell, the pressing spring is squeezed and pressed on the sealing ring to form an outer sealing structure, thereby forming a double-layer waterproof sealing structure at the connection between the threaded shell and the wire pressing shell, and the waterproof performance of the head cover box is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 for Figure 1 A partial enlarged view of the middle A area;

[0015] Figure 3 It is an exploded view of the overall structure of the utility model;

[0016] Figure 4 It is an exploded view of part of the structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the assembly structure of the locking block in the utility model.

[0018] In the figure: 1. female connecting shell; 2. female connecting column; 4. locking assembly; 5. male connecting shell; 6. sealing assembly; 7. male threaded shell; 8. female threaded shell; 9. crimping shell; 10. male crimping column; 11. female crimping column; 12. outer head; 41. annular groove; 42. locking block; 43. locking spring; 44. locking sleeve; 45. connecting ring; 46. reset spring; 47. anti-slip groove; 48. unlocking notch; 49. limiting column; 61. pressing ring; 62. closing shell; 63. pressing spring; 64. sealing ring; 65. sealing gasket. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-5 The utility model provides an embodiment: a low-voltage cable self-locking quick connector, including a female connecting shell 1, a female connecting column 2, a locking component 4, a male connecting shell 5, a sealing component 6, a male threaded shell 7, a female threaded shell 8, a crimping shell 9, a male crimping column 10, a female crimping column 11 and an outer sealing head 12, the female connecting shell 1 is slidably connected with the male connecting shell 5, the side wall of the male connecting shell 5 is provided with an annular groove 41 in the locking component 4, and a locking block 42 is matched and connected in the annular groove 41, and the locking block 42 is slidably connected in the through groove uniformly provided on the side wall of the female connecting shell 1, and the female A locking spring 43 is provided between the connecting shell 1 and the locking block 42, a connecting ring 45 is rotatably connected to the side wall of the female connecting shell 1, a reset spring 46 is evenly provided on one side of the connecting ring 45, one end of the reset spring 46 is connected to the locking sleeve 44, and the locking sleeve 44 is slidably connected to the female connecting shell 1; a male threaded shell 7 and a female threaded shell 8 are respectively provided on the male connecting shell 5 and the female connecting shell 1, and a pressing ring 61 in the sealing assembly 6 is sleeved on the male threaded shell 7 and the female threaded shell 8, and the pressing ring 61 fits on the sealing ring 64, and the sealing ring 64 is slidably connected to the closing shell 62 In the embodiment, a compression spring 63 is arranged between the closing shell 62 and the sealing ring 64, the closing shell 62 is sleeved on the crimping shell 9, and the crimping shell 9 is connected to the male threaded shell 7 and the female threaded shell 8 through threaded cooperation, a female connecting column 2 is arranged inside the female connecting shell 1, the female connecting column 2 is sleeved on the male docking column, and the male docking column is embedded and installed in the male connecting shell 5, the locking assembly 4 is composed of an annular groove 41, a locking block 42, a locking spring 43, a locking sleeve 44, a connecting ring 45, a reset spring 46, an anti-slip groove 47, an unlocking notch 48 and a limiting column 49, and the limiting column 49 is provided It is arranged on the side wall of the female connector shell 1, and the outer wall of the locking sleeve 44 is evenly provided with anti-slip grooves 47, and the locking sleeve 44 is symmetrically provided with unlocking notches 48, and the sealing assembly 6 is composed of a pressing ring 61, a closing shell 62, a pressing spring 63, a sealing ring 64 and a sealing gasket 65, and the sealing gasket 65 is fixed on the crimping shell 9, and the male threaded shell 7 and the female threaded shell 8 are respectively provided with a male crimping post 10 and a female crimping post 11, and the crimping shell 9 is connected with an outer sealing head 12 by threads, and the male crimping post 10 and the female crimping post 11 can crimp the cable, thereby realizing the electrical connection between the male and female heads;

[0022] Specifically, when in use, an annular groove 41 is opened on the male connecting shell 5 to cooperate with the locking block 42 to form a quick docking structure between the male and female heads. After the male connecting shell 5 is inserted into the female connecting shell 1, the locking block 42 is tightly pressed in the annular groove 41 under the elastic force of the locking spring 43. At the same time, the locking sleeve 44 is tightly pressed on the locking block 42 under the action of the reset spring 46 to prevent the locking block 42 from escaping from the annular groove 41, thereby fixing the male connecting shell 5 to prevent it from falling off. When unlocking, the locking sleeve 44 is rotated to align the unlocking notch 48 with the limiting column 49, and then the locking sleeve 44 is pulled to lock. The sleeve 44 sleeves the limit column 49 into the unlocking groove 48, and the mutual fixation of the male head and the female head can be released by pulling. The plugging and unplugging are simple and the connection is stable, which improves the user experience; the wire pressing shell 9 is tightly pressed on the male threaded shell 7 and the female threaded shell 8 through the thread, and the inner sealing structure is formed through the sealing gasket 65 at the connection. At the same time, the clamping ring 61 is pressed into the closed shell 62, squeezing the compression spring 63 and pressing it on the sealing ring 64 to form an outer sealing structure, thereby forming a double-layer waterproof sealing structure at the connection between the threaded shell and the wire pressing shell 9, which improves the waterproof performance of the head cover box.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A low-voltage cable self-locking quick connector, comprising a female connecting shell (1), a female connecting column (2), a locking assembly (4), a male connecting shell (5), a sealing assembly (6), a male threaded shell (7), a female threaded shell (8), a crimping shell (9), a male crimping column (10), a female crimping column (11) and an outer sealing head (12), characterized in that: The female connection shell (1) is slidably connected to a male connection shell (5); a side wall of the male connection shell (5) is provided with an annular groove (41) in a locking assembly (4); a locking block (42) is matched and connected in the annular groove (41); the locking block (42) is slidably connected to a through groove uniformly provided on the side wall of the female connection shell (1); a locking spring (43) is provided between the female connection shell (1) and the locking block (42); a connecting ring (45) is rotatably connected to the side wall of the female connection shell (1); a return spring (46) is uniformly provided on one side of the connecting ring (45); one end of the return spring (46) is connected to a locking sleeve (44); the locking sleeve (4 4) is slidably connected to the female connecting shell (1); the male connecting shell (5) and the female connecting shell (1) are respectively provided with a male threaded shell (7) and a female threaded shell (8), and the male threaded shell (7) and the female threaded shell (8) are both sleeved with a clamping ring (61) in the sealing assembly (6), the clamping ring (61) fits on the sealing ring (64), and the sealing ring (64) is slidably connected to the closed shell (62), a clamping spring (63) is provided between the closed shell (62) and the sealing ring (64), the closed shell (62) is sleeved on the wire pressing shell (9), and the wire pressing shell (9) is connected to the male threaded shell (7) and the female threaded shell (8) by threaded matching.

2. A low-voltage cable self-locking quick connector according to claim 1, characterized in that: A female connecting column (2) is arranged inside the female connecting shell (1), the female connecting column (2) is sleeved on the male docking column, and the male docking column is embedded in the male connecting shell (5).

3. A low-voltage cable self-locking quick connector according to claim 1, characterized in that: The locking assembly (4) is composed of an annular groove (41), a locking block (42), a locking spring (43), a locking sleeve (44), a connecting ring (45), a reset spring (46), an anti-slip groove (47), an unlocking notch (48) and a limiting column (49), and the limiting column (49) is arranged on the side wall of the female connecting shell (1).

4. A low-voltage cable self-locking quick connector according to claim 3, characterized in that: Anti-slip grooves (47) are evenly arranged on the outer wall of the locking sleeve (44), and unlocking notches (48) are symmetrically arranged on the locking sleeve (44).

5. The low-voltage cable self-locking quick connector according to claim 1, characterized in that: The sealing assembly (6) is composed of a pressing ring (61), a sealing shell (62), a pressing spring (63), a sealing ring (64) and a sealing gasket (65), and the sealing gasket (65) is fixed on the wire pressing shell (9).

6. A low-voltage cable self-locking quick connector according to claim 1, characterized in that: A male wire pressing post (10) and a female wire pressing post (11) are respectively arranged in the male thread shell (7) and the female thread shell (8).

7. A low-voltage cable self-locking quick connector according to claim 5, characterized in that: The crimping shell (9) is connected to an external sealing head (12) via threads.

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