Waterproof installation type quick-plug connector

Abstract

The utility model relates to a waterproof installation type quick-plug connector, which comprises a front shell. An inner cylinder and an outer cylinder are formed at the front end of the front shell, and a snap spring is arranged on the inner wall of the outer cylinder; the inner sleeve edge of the thread sleeve is suitable for being connected with the clamping spring in an abutting mode, and when the thread sleeve moves backwards, the inner sleeve edge is connected with the clamping spring in an abutting mode so that the clamping spring can be opened in the radial direction; the front end of the rear shell is inserted into the front shell; and the tail nut is connected to the rear end of the rear shell, and when the tail nut is screwed down, the third sealing ring is driven to deform in the radial direction so as to seal the outer wall of the cable. The waterproof connector assembly can simplify the process in the installation process of the connector assembly, provides excellent waterproof performance, and can be applied to novel equipment systems more and more widely.

Description

Technical Field

[0001] The utility model relates to the technical field of communication radio frequency coaxial connectors, in particular to a waterproof installation type quick-plug connector. Background Art

[0002] A connector is a mechanical component with electrical connection characteristics. Its main function is to connect devices to each other. It is a component that realizes stable signal transmission in the field of wireless communications.

[0003] With the rapid development of modern communication technology, the demand for communication RF connector products has also shown characteristics such as diversification, simple installation, high-tech, and integrated functions. Application requirements require simplified installation operations and improved reliability. Outdoor communication equipment has increasingly higher requirements for waterproofing and vibration resistance. Connectors need to add sealing rings to ensure waterproof performance. Conventional connectors generally use circular sealing rings when making cable assemblies, but the contact area between the circular sealing ring and the cable is small. In a humid environment, water will penetrate from the gap between the cable and the sealing ring, resulting in poor electrical performance, and can only be replaced.

[0004] Therefore, there is an urgent need to develop a waterproof installation type quick plug connector to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide a waterproof installation quick-plug connector to solve the technical problem of poor waterproofing caused by a humid environment when the connector is used outdoors.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a waterproof installation quick-plug connector, comprising

[0008] A front housing, wherein an insulator is disposed in the front housing, and an inner conductor is disposed in the insulator;

[0009] The front end of the front shell is formed with an inner cylinder and an outer cylinder, an annular groove is formed between the inner cylinder and the outer cylinder, a first sealing ring is arranged on the outer wall of the inner cylinder, and a retaining spring which can be opened and closed radially is arranged on the inner wall of the outer cylinder;

[0010] The screw sleeve is sleeved on the outer cylinder and is suitable for axial movement along the outer cylinder. A second sealing ring is arranged between the outer cylinder and the screw sleeve. The inner sleeve edge of the screw sleeve is suitable for abutting against the retaining spring. When the screw sleeve moves backward, the inner sleeve edge abuts against the retaining spring to open the retaining spring radially; so that the annular groove cooperates with the male head, the inner cylinder forms a sealing cooperation with the male head through the first sealing ring, and the outer cylinder is clamped with the male head through the retaining spring;

[0011] A rear housing, wherein the front end of the rear housing is inserted into the front housing and is threadedly connected to the front housing, and a third sealing ring is arranged between the front housing and the rear housing;

[0012] The tail nut is connected to the rear end of the rear shell body, and a fourth sealing ring is arranged inside the tail nut. When the tail nut is tightened, the third sealing ring is driven to deform radially to seal the outer wall of the cable.

[0013] Furthermore, a circle of mounting grooves is provided on the inner wall of the outer cylinder, and the retaining ring is arranged in the mounting grooves;

[0014] The retaining spring is an annular part with a notch formed on it. The notch is in a closed state when the retaining spring is in a normal state. The front and rear ends of the retaining spring respectively form abutment end faces. The retaining spring is arranged in the installation groove through the two abutment end faces. The inner ring of the retaining spring forms a retaining convexity, which is suitable for retaining with the male head. The front side of the retaining spring forms an inner conical surface, which is suitable for abutting with the inner sleeve edge of the screw sleeve.

[0015] Furthermore, the screw sleeve includes an inner sleeve edge and an outer sleeve edge, and an active cavity of the outer cylinder is formed between the inner sleeve edge and the outer sleeve edge. The outer cylinder is suitable for rotating and translating in the active cavity. The rear end of the outer sleeve edge forms an outer rib, and the outer rib is suitable for abutting the outer cylinder to limit the screw sleeve from sliding off the outer cylinder.

[0016] Furthermore, a fastening fitting is provided in the inner cavity at the rear end of the front shell, an interference fit is adopted between the fastening fitting and the front shell, an insulating sheet is provided on the fastening fitting, and the fastening fitting abuts the insulating sheet against the rear end of the inner conductor.

[0017] Furthermore, a through hole is provided in the tail nut, a retaining edge is formed at the rear end of the through hole, and an internal thread is formed in the front end of the through hole;

[0018] The tail nut is threadedly connected to the rear housing through an internal thread, the fourth sealing ring is arranged in the through hole, the front end of the fourth sealing ring abuts against the rear housing, and the rear end of the fourth sealing ring abuts against the retaining edge.

[0019] The beneficial effects of the utility model are:

[0020] The waterproof installation quick-plug connector of the utility model can simplify the process of installing the connector assembly, provide excellent waterproof performance (suitable for harsh outdoor environments), and will be more and more widely used in new equipment systems.

[0021] After the male and female connectors are mated, water can be prevented from seeping in from the mating points. Four sealing rings can prevent water from entering the housing. The screw sleeve can rotate or move back and forth, and together with the retaining spring, the connector can achieve quick plug-in and pull-out functions, thereby simplifying the installation of the connector assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the waterproof installation quick-plug connector of the utility model;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 and Figure 4 It is a schematic diagram of the circlip;

[0026] Among them, 1, front shell, 11, inner cylinder, 12, outer cylinder;

[0027] 2. Rear housing;

[0028] 3. Tail nut;

[0029] 4. Screw sleeve, 41. Inner sleeve edge, 42. Outer sleeve edge, 43. Outer rib;

[0030] 51, a first sealing ring, 52, a second sealing ring, 53, a third sealing ring, 54, a fourth sealing ring;

[0031] 6. a retaining spring, 61. a notch, 62. abutting end surface, 63. a retaining protrusion, 64. an inner conical surface;

[0032] 7. Tight fittings, 8. Insulation sheet;

[0033] 91. Insulator, 92. Inner conductor. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0035] The present application provides a waterproof installation quick-plug connector, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0036] In order to solve the technical problem of poor waterproofing caused by the humid environment when the connector is used outdoors in the prior art, an embodiment of the present application provides a waterproof installation quick-plug connector, which is described in detail below.

[0037] like Figures 1 to 4 As shown, a waterproof installation quick-plug connector includes

[0038] A front housing 1, wherein an insulator 91 is disposed in the front housing 1, and an inner conductor 92 is disposed in the insulator 91;

[0039] The front end of the front housing 1 is formed with an inner cylinder 11 and an outer cylinder 12, an annular groove is formed between the inner cylinder 11 and the outer cylinder 12, a first sealing ring 51 is arranged on the outer wall of the inner cylinder 11, and a retaining spring 6 which can be radially opened and closed is arranged on the inner wall of the outer cylinder 12;

[0040] The screw sleeve 4 is sleeved on the outer cylinder 12 and is suitable for axial movement along the outer cylinder 12. A second sealing ring 52 is arranged between the outer cylinder 12 and the screw sleeve 4. The inner sleeve edge 41 of the screw sleeve 4 is suitable for abutting against the retaining spring 6. When the screw sleeve 4 moves backward, the inner sleeve edge 41 abuts against the retaining spring 6 to open the retaining spring 6 radially; so that the annular groove cooperates with the male head, the inner cylinder 11 forms a sealing cooperation with the male head through the first sealing ring 51, and the outer cylinder 12 is clamped with the male head through the retaining spring 6;

[0041] A rear housing 2, wherein the front end of the rear housing 2 is inserted into the front housing 1 and is threadedly connected to the front housing 1, and a third sealing ring 53 is disposed between the front housing 1 and the rear housing 2;

[0042] The tail nut 3 is connected to the rear end of the rear housing 2. A fourth sealing ring 54 is arranged inside the tail nut 3. When the tail nut 3 is tightened, the third sealing ring 53 is driven to deform radially to seal the outer wall of the cable.

[0043] Specifically, as an optional implementation in this embodiment, Figure 1 As shown, the inner wall of the outer cylinder 12 is provided with a circle of mounting grooves, and the clamping spring 6 is arranged in the mounting grooves;

[0044] like Figure 3 Figure 4 As shown, the retaining spring 6 is an annular part, and a notch 61 is provided on the retaining spring 6. When the retaining spring 6 is in a normal state, the notch 61 is in a closed state. The front and rear ends of the retaining spring 6 respectively form abutment end faces 62. The retaining spring 6 is arranged in the mounting groove through the two abutment end faces 62. The inner circle of the retaining spring 6 forms a locking protrusion 63, and the locking protrusion 63 is suitable for locking with a male head. The front side of the retaining spring 6 forms an inner conical surface 64, and the inner conical surface 64 is suitable for abutting with the inner sleeve edge 41 of the screw sleeve 4.

[0045] The notch 61 of the retaining spring 6 can be opened only when the inner sleeve edge 41 of the screw sleeve 4 abuts against the inner conical surface 64 of the retaining spring 6. After the retaining spring 6 is radially opened, the male head can be smoothly inserted into the annular groove to achieve mutual mating between the male and female.

[0046] Specifically, as an optional implementation in this embodiment, Figure 1 As shown, the screw sleeve 4 includes an inner sleeve edge 41 and an outer sleeve edge 42, and an active cavity of the outer cylinder 12 is formed between the inner sleeve edge 41 and the outer sleeve edge 42. The outer cylinder 12 is suitable for rotating and translating in the active cavity. The rear end of the outer sleeve edge 42 forms an outer rib 43, and the outer rib 43 is suitable for abutting the outer cylinder 12 to limit the screw sleeve 4 from sliding out of the outer cylinder 12.

[0047] In this embodiment, an outer convex ring is provided on the outer cylinder 12 to abut against the outer rib 43 .

[0048] Specifically, as an optional implementation in this embodiment, Figure 1 As shown, a fastening fitting 7 is provided in the inner cavity at the rear end of the front shell 1 , and an interference fit is adopted between the fastening fitting 7 and the front shell 1 . An insulating sheet 8 is provided on the fastening fitting 7 , and the fastening fitting 7 abuts the insulating sheet 8 against the rear end of the inner conductor 92 .

[0049] Specifically, as an optional implementation in this embodiment, Figure 1 As shown, a through hole is formed in the tail nut 3, a retaining edge is formed at the rear end of the through hole, and an internal thread is formed at the front end of the through hole;

[0050] The tail nut 3 is threadedly connected to the rear housing 2 via an internal thread, and the fourth sealing ring 54 is arranged in the through hole. The front end of the fourth sealing ring 54 abuts against the rear housing 2, and the rear end of the fourth sealing ring 54 abuts against the retaining edge.

[0051] The cable is connected to the inner conductor 92 after passing through the tail nut 3 and the rear shell 2. When the tail nut 3 is tightened, the fourth sealing ring 54 seals the outer wall of the cable to prevent water from penetrating from the gap between the tail nut 3 and the cable, thereby providing excellent waterproof performance.

[0052] The first sealing ring 51 improves the sealing performance between the male connector and the inner cylinder 11, and can prevent water from penetrating from the mating point after the male and female connectors are mated.

[0053] The second sealing ring 52 is arranged between the screw sleeve 4 and the outer cylinder 12 to prevent water from penetrating through the gap between the screw sleeve 4 and the shell.

[0054] The third sealing ring 53 is arranged between the front housing 1 and the rear housing 2 to prevent water from penetrating through the gap between the two housings.

[0055] In the waterproof installation quick-plug connector of the utility model, the screw sleeve 4 can move forward and backward. When the male head needs to be connected, the retaining spring 6 is squeezed backward by the screw sleeve 4, so that the retaining spring 6 is radially opened. After the male head is inserted, the screw sleeve 4 is pushed forward, and the retaining spring 6 contracts radially, so that the locking protrusion 63 is inserted into the male head. When the male head needs to be removed, the screw sleeve 4 continues to push the retaining spring 6 backward, so that the male head can be pulled out smoothly. Through the screw sleeve 4+retaining spring 6, the connector can be quickly plugged in and out, simplifying the installation of the connector assembly.

[0056] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0057] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.

[0058] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0059] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0060] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0061] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0062] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A waterproof quick-plug connector, characterized in that: include A front housing (1), an insulator (91) being arranged inside the front housing (1), and an inner conductor (92) being arranged inside the insulator (91); The front end of the front housing (1) forms an inner cylinder (11) and an outer cylinder (12), an annular groove is formed between the inner cylinder (11) and the outer cylinder (12), a first sealing ring (51) is arranged on the outer wall of the inner cylinder (11), and a retaining spring (6) capable of radial opening and closing is arranged on the inner wall of the outer cylinder (12); A screw sleeve (4) is sleeved on the outer cylinder (12) and is suitable for axial movement along the outer cylinder (12). A second sealing ring (52) is arranged between the outer cylinder (12) and the screw sleeve (4). An inner sleeve edge (41) of the screw sleeve (4) is suitable for abutting against a retaining spring (6). When the screw sleeve (4) moves backward, the inner sleeve edge (41) abuts against the retaining spring (6) so that the retaining spring (6) opens radially, thereby making the annular groove cooperate with the male head. The inner cylinder (11) forms a sealing cooperation with the male head through the first sealing ring (51), and the outer cylinder (12) is clamped with the male head through the retaining spring (6). a rear housing (2), wherein the front end of the rear housing (2) is inserted into the front housing (1) and is threadedly connected to the front housing (1), and a third sealing ring (53) is provided between the front housing (1) and the rear housing (2); A tail nut (3) is connected to the rear end of the rear housing (2), a fourth sealing ring (54) is arranged inside the tail nut (3), and when the tail nut (3) is tightened, the third sealing ring (53) is driven to deform radially to seal the outer wall of the cable.

2. The waterproof quick-plug connector according to claim 1, characterized in that: The inner wall of the outer cylinder (12) is provided with a circle of mounting grooves, and the retaining ring (6) is arranged in the mounting grooves; The retaining spring (6) is an annular part. A notch (61) is provided on the retaining spring (6). The notch (61) is in a closed state when the retaining spring (6) is in a normal state. The front and rear ends of the retaining spring (6) respectively form abutment end faces (62). The retaining spring (6) is arranged in the installation groove through the two abutment end faces (62). The inner ring of the retaining spring (6) forms a clamping protrusion (63). The clamping protrusion (63) is suitable for clamping with a male head. The front side of the retaining spring (6) forms an inner conical surface (64). The inner conical surface (64) is suitable for abutting with the inner sleeve edge (41) of the screw sleeve (4).

3. The waterproof quick-plug connector according to claim 2, characterized in that: The screw sleeve (4) comprises an inner sleeve edge (41) and an outer sleeve edge (42), wherein an active cavity of the outer cylinder (12) is formed between the inner sleeve edge (41) and the outer sleeve edge (42), wherein the outer cylinder (12) is adapted to rotate and translate in the active cavity, and an outer rib (43) is formed at the rear end of the outer sleeve edge (42), wherein the outer rib (43) is adapted to abut against the outer cylinder (12) to limit the screw sleeve (4) from sliding off the outer cylinder (12).

4. The waterproof quick-plug connector according to claim 1, characterized in that: A tightening fitting (7) is arranged in the inner cavity at the rear end of the front shell (1); an interference fit is adopted between the tightening fitting (7) and the front shell (1); an insulating sheet (8) is arranged on the tightening fitting (7); the tightening fitting (7) abuts the insulating sheet (8) against the rear end of the inner conductor (92).

5. The waterproof quick-plug connector according to claim 1, characterized in that: The tail nut (3) has a through hole formed in it, a retaining edge is formed at the rear end of the through hole, and an internal thread is formed at the front end of the through hole; The tail nut (3) is threadedly connected to the rear housing (2) via an internal thread, the fourth sealing ring (54) is arranged in the through hole, the front end of the fourth sealing ring (54) abuts against the rear housing (2), and the rear end of the fourth sealing ring (54) abuts against the retaining edge.

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