Waterproof connector

Abstract

The utility model discloses a waterproof connector, it includes terminal seat, front shell, tail shell, end cap, end cover, reset torsional spring, conical cylinder claw and sealing sleeve, the end cover is set up on the front shell through hinged axle. When not using, reset torsional spring provides the elasticity and makes end cover can automatic overturn cover and close the front end opening of front shell, need not manual operation, convenient and fast, can close opening in time, reduce the risk of liquid invasion, the tail end of tail shell and front shell butt joint, the outside of tail end of tail shell is equipped with inner and outer annular groove, and the front end of conical cylinder claw is inserted on the outer annular groove, and the sealing sleeve is located in conical cylinder claw and the front end is inserted on the inner annular groove. When end cap is screwed in the tail end of tail shell, the inner wall push table of it will resist the conical cylinder claw, make it close and press tightly sealing sleeve, thereby form the close sealing structure in tail, effectively prevent liquid from invading from tail, ensure tail sealed reliable, solved the problem of traditional connector tail sealed problem, and the waterproof dustproof effect is good.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a waterproof connector. Background Technology

[0002] With the continuous development of science and technology, people's work and life are inseparable from electricity. To facilitate electricity use, people have created a variety of practical connectors. Traditional connectors are mostly simple in structure, mainly composed of terminal blocks and metal terminals. Although they can meet basic electrical connection requirements, they lack a waterproof structure. When not in use, the opening of the terminal block is exposed, causing the metal terminals to be directly exposed to the external environment. When exposed to liquids, water molecules can easily seep into the metal terminals through the opening of the terminal block, easily leading to short circuits or corrosion, affecting the normal operation of the equipment. At the same time, the tail sealing design of the connector is also unsatisfactory. It is difficult to form a tight seal between the tail shell and the external connecting parts, especially in complex and harsh environments, such as outdoors, industrial production sites, or high humidity areas. This sealing defect can cause internal components of the equipment to become damp and damaged, greatly shortening its service life. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this utility model is to provide a waterproof connector with a reasonable structural design and good waterproof performance.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: A waterproof connector includes a terminal block and metal terminals disposed on the terminal block. It also includes a front housing, a tail housing, an end cap, an end cover, a return torsion spring, a conical claw, and a sealing sleeve. The terminal block is disposed within the front housing. The end cover is mounted on the front housing via a hinge shaft. The return torsion spring is disposed on the front housing and can push the end cover to flip and close onto the front opening of the front housing. The front end of the tail housing is aligned with the tail end of the front housing. An inner annular groove and an outer annular groove are concentrically located on the outer side of the tail opening of the tail housing. The front end of the conical claw is inserted into the outer annular groove. The sealing sleeve is located within the conical claw, with its front end inserted into the inner annular groove. The end cap is screwed onto the tail end of the tail housing, and its inner wall has a pusher that, when tightened, abuts against the conical claw to close and press the sealing sleeve.

[0005] In a preferred embodiment of this utility model, a hinge seat is provided on the front outer wall of the front shell, and the hinge seat has a shaft position for mounting the hinge shaft. A first assembly groove is provided concentrically on the open end face of the rear end of the front shell, and an external thread is provided on the inner wall of the first assembly groove. The external thread engages with the internal thread of the rear shell to ensure a tight and secure connection between the front shell and the rear shell.

[0006] As a preferred embodiment of this utility model, the front opening end face of the tail shell is provided with a second assembly groove at the center of the circle. The inner wall of the second assembly groove is inserted into the first assembly groove and is provided with an internal thread that matches the external thread. The outer wall of the first assembly groove is inserted into the second assembly groove, and the outer wall of the second assembly groove covers the outer wall of the first assembly groove, so as to achieve tight docking and fixation of the front shell and the tail shell.

[0007] As a preferred embodiment of this utility model, the tail end opening of the front shell is provided with a sealing cap to improve the sealing effect.

[0008] In a preferred embodiment of this invention, the outer annular groove is provided with positioning protrusions, and the front end of the conical claw is provided with positioning slots that match the positioning protrusions. This ensures that the sealing sleeve can be correctly installed and tightened.

[0009] In a preferred embodiment of this invention, the diameter of the tail end of the conical claw gradually decreases, and it is provided with several V-shaped grooves in a symmetrical arrangement to form several grippers. The inner surface of the end of the gripper is provided with teeth, which can increase the friction and biting force between the gripper and the sealing sleeve.

[0010] As a preferred embodiment of this utility model, the outer wall of the sealing sleeve is provided with a limiting protrusion that matches the V-shaped groove, which effectively restricts the circumferential rotational displacement of the sealing sleeve.

[0011] As a preferred embodiment of this utility model, the inner wall of the sleeve hole of the sealing sleeve is provided with a flange, which can increase the contact area and friction between the sealing sleeve and the wire and cable, making the seal tighter.

[0012] The beneficial effects of this utility model are as follows: The structure of this utility model is reasonably designed. When not in use, the return torsion spring provides elasticity, allowing the end cap to automatically flip and close the front opening of the front shell without manual operation, which is convenient and quick. It can close the opening in time, reducing the risk of liquid intrusion. The front end of the tail shell connects with the tail end of the front shell. The outer side of the tail end of the tail shell is provided with inner and outer annular grooves. The front end of the conical claw is inserted into the outer annular groove, and the sealing sleeve is located inside the conical claw with its front end inserted into the inner annular groove. When the end cap is tightened on the tail end of the tail shell, the pusher on its inner wall will abut against the conical claw, causing it to close and press the sealing sleeve, thereby forming a tight sealing structure at the tail end. This effectively prevents liquid from entering from the tail end, ensuring reliable sealing at the tail end. This solves the problem of poor sealing at the tail end of traditional connectors, effectively preventing water and other debris from seeping into the connector, and providing good waterproof and dustproof performance.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 3 This is an exploded structural diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of the front shell and tail shell in this utility model.

[0018] Figure 5 This is a schematic diagram of the conical claw and sealing sleeve in this utility model.

[0019] Figure 6 This is a schematic diagram of the open end cap structure of this utility model. Detailed Implementation

[0020] Example: See Figures 1 to 5 This embodiment provides a waterproof connector, which includes a terminal block 1, a front shell 2, a tail shell 3, an end cap 4, an end cover 5, a return torsion spring 6, a conical claw 7, and a sealing sleeve 8. The terminal block 1 is provided with metal terminals. One end of the wire core of the electric wire or cable is connected to the metal terminals.

[0021] The terminal block 1 is disposed inside the front housing 2, the end cover 5 is disposed on the front housing 2 via a hinge shaft, and the return torsion spring 6 is disposed on the front housing 2 and can push the end cover 5 to flip and close onto the front opening of the front housing 2. Specifically, a hinge seat 21 is provided on the outer wall of the front end of the front housing 2, and the hinge seat 21 is provided with a pivot position 22 for mounting the hinge shaft, so that the end cover 5 can be flexibly flipped open and closed. An anti-disengagement buckle can also be provided on the front housing 2 for easy connection with other functional components.

[0022] The front end of the tail shell 3 is connected to the tail end of the front shell 2. Specifically, a first assembly groove 23 is provided at the same center on the open end face of the tail end of the front shell 2, and an external thread 231 is provided on the inner wall of the first assembly groove 23.

[0023] The front opening of the tail shell 3 has a second mounting groove 31 centered on the front end face. The inner wall of the second mounting groove 31 is inserted into the first mounting groove 23 and has an internal thread 311 that matches the external thread 231. The outer wall of the first mounting groove 23 is inserted into the second mounting groove 31, and the outer wall of the second mounting groove 31 covers the outer wall of the first mounting groove 23. The engagement of the external thread 231 of the front shell 2 and the internal thread 311 of the tail shell 3 ensures a tight and secure connection between the front shell 2 and the tail shell 3, enhancing the overall stability of the connector structure. Furthermore, the coverage of the outer wall of the second mounting groove 31 on the outer wall of the first mounting groove 23 contributes to improved sealing performance.

[0024] Preferably, a sealing cap 9 is provided at the rear end opening of the front housing 2 to further improve the sealing effect. The sealing cap 9 has a mating wire hole through which the wire or cable passes and connects to the metal terminal. The mating wire hole and the outer sheath of the wire or cable are interference fit, making the fit tighter.

[0025] The tail end opening of the tail shell 3 has an inner annular groove 32 and an outer annular groove 33 centered on the outer side. The front end of the conical claw 7 is inserted into the outer annular groove 33. A positioning protrusion can be provided in the outer annular groove 33, and a positioning slot adapted to the positioning protrusion is provided on the front end of the conical claw 7. By cooperating with the positioning protrusion and the positioning slot, the conical claw 7 is ensured to be accurately installed in the predetermined position, avoiding its displacement or skew during installation, thereby ensuring that the sealing sleeve 8 can be correctly installed and tightened, and improving the reliability of the tail seal.

[0026] The sealing sleeve 8 is located inside the conical claw 7. Preferably, the diameter of the tail end of the conical claw 7 gradually decreases, and it is symmetrically provided with several V-shaped grooves 71 forming several grippers 72. In this embodiment, there are six V-shaped grooves 71 and six grippers 72. The grippers 72 can contract evenly when subjected to force, ensuring that the pressure on the sealing sleeve 8 is balanced, thus improving the uniformity and reliability of the seal. The inner surface of the end of the gripper 72 is provided with teeth 721. The teeth 721 can increase the friction and biting force between the gripper and the sealing sleeve 8, so that when the conical claw 7 is pushed by the end cap 4, the grippers 72 can contract evenly inward, and the teeth 721 bite the sealing sleeve 8, enhancing the sealing effect. Preferably, the outer wall of the sealing sleeve 8 is provided with a limiting protrusion that matches the V-shaped grooves 71, effectively limiting the circumferential rotational displacement of the sealing sleeve 8, ensuring that the sealing sleeve 8 is stably installed inside the conical claw 7, and guaranteeing the sealing effect. The front end of the sealing sleeve 8 is inserted into the inner annular groove 32. Preferably, a flange 81 is provided on the inner wall of the sleeve hole of the sealing sleeve 8. When the sealing sleeve 8 is pressed into the conical claw 7, the flange 81 can increase the contact area and friction between the sealing sleeve 8 and the wire and cable, making the seal tighter, effectively preventing liquid from seeping in from the connection, and further improving the sealing performance.

[0027] The end cap 4 is screwed onto the tail end of the tail shell 3, and its inner wall is provided with a pusher 41 that can abut against the conical claw 7 when tightened, causing it to close and press against the sealing sleeve 8. When the end cap 4 is tightened onto the tail end of the tail shell 3, the pusher 41 on its inner wall will abut against the conical claw 7, causing it to close and press against the sealing sleeve 8, thereby forming a tight sealing structure at the tail end, effectively preventing liquid from entering from the tail end, ensuring reliable tail sealing, solving the problem of poor tail sealing in traditional connectors, effectively preventing water and other debris from seeping into the connector, and providing good waterproof and dustproof effects.

[0028] When using, see Figure 1 and Figure 6 Pressing the lever at the hinge position of end cover 5 can push end cover 5 to flip, making the front end of front shell 2 open for easy connection and use.

[0029] When not in use, the reset torsion spring 6 provides elasticity so that the end cover 5 can automatically flip and close the front opening of the front shell 2 without manual operation, which is convenient and quick, can close the opening in time, and has good waterproof and dustproof effects.

[0030] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model. Connectors with other structures obtained using the same or similar structures as described in the above embodiments of this utility model are all within the protection scope of this utility model.

Claims

1. A waterproof connector, comprising a terminal block and metal terminals disposed on the terminal block, characterized in that: It also includes a front shell, a tail shell, an end cap, an end cover, a reset torsion spring, a conical claw, and a sealing sleeve. The terminal block is disposed inside the front shell. The end cover is disposed on the front shell via a hinge shaft. The reset torsion spring is disposed on the front shell and can push the end cover to flip and close onto the front opening of the front shell. The front end of the tail shell is connected to the tail end of the front shell. The outer side of the tail opening of the tail shell is provided with an inner annular groove and an outer annular groove concentrically. The front end of the conical claw is inserted into the outer annular groove. The sealing sleeve is located inside the conical claw, and its front end is inserted into the inner annular groove. The end cap is screwed onto the tail end of the tail shell, and its inner wall is provided with a pusher that can abut against the conical claw to close and press the sealing sleeve when tightened.

2. The waterproof connector according to claim 1, characterized in that, The front outer wall of the front housing is provided with a hinge seat, and the hinge seat is provided with a shaft position for installing the hinge shaft. The open end face of the rear end of the front housing is provided with a first assembly groove concentrically, and the inner wall of the first assembly groove is provided with an external thread.

3. The waterproof connector according to claim 2, characterized in that, The front end opening of the tail shell is provided with a second assembly groove at the center of the circle. The inner wall of the second assembly groove is inserted into the first assembly groove and is provided with an internal thread that matches the external thread. The outer wall of the first assembly groove is inserted into the second assembly groove, and the outer wall of the second assembly groove covers the outer wall of the first assembly groove.

4. The waterproof connector according to claim 1, characterized in that, The rear end opening of the front housing is equipped with a sealing cap.

5. The waterproof connector according to claim 1, characterized in that, The outer annular groove is provided with positioning protrusions, and the front end of the conical claw is provided with positioning slots that are adapted to the positioning protrusions.

6. The waterproof connector according to claim 1, characterized in that, The diameter of the tail end of the conical claw gradually decreases, and several V-shaped grooves are provided in a symmetrical arrangement to form several grippers. The inner surface of the end of the gripper is provided with teeth.

7. The waterproof connector according to claim 6, characterized in that, The outer wall of the sealing sleeve is provided with a limiting protrusion that matches the V-shaped groove.

8. The waterproof connector according to claim 1, characterized in that, The inner wall of the sleeve hole of the sealing sleeve is provided with a flange.

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