Waterproof connector

Abstract

The utility model discloses a waterproof connector, which belongs to the field of waterproof connectors, comprises a male head nut, a waterproof connector male head and a waterproof connector female head, and is characterized in that a first female head sealing ring and a second female head sealing ring are arranged between the waterproof connector female head and the waterproof connector male head; a male head stop groove and a first male head sealing ring are arranged at the contact part of the waterproof connector male head and the side wall of the shell; the matching surfaces of the plugging columns and the plugging grooves are arranged to be fool-proof structures. The waterproof connector has the beneficial effects that the first female head sealing ring, the second female head sealing ring and the tightening slot are arranged between the waterproof connector female head and the waterproof connector male head, so that the compression amount is ensured to be within a design control range, the waterproof effect is ensured, and the service life of the sealing rings is better prolonged; the situation of water leakage caused by damage of the sealing ring due to overlarge deformation after long-time use of the sealing ring is avoided; and the matching surface is arranged to be a fool-proof structure, so that misoperation caused by human factors can be well avoided.

Description

Technical fields:

[0001] This utility model belongs to the field of waterproof connectors, and more specifically relates to a waterproof connector with good waterproof performance. Background technology:

[0002] Currently, commonly used waterproof connectors for pool robots on the market often have gaps at the joint between the male and female connectors, making it easy for water to enter and damage the connector. To prevent water ingress, a waterproof rubber ring is usually placed at the joint between the male and female connectors. When the male connector is inserted into the female connector, the waterproof rubber ring is squeezed to achieve the waterproof function. However, when the male and female connectors become loose, gaps will still remain, affecting the waterproof performance. Moreover, in daily use, the male and female connectors are frequently plugged and unplugged, causing wear and tear, resulting in gaps between them and the waterproof rubber ring, causing the waterproof performance to fail to meet requirements. Utility Model Content:

[0003] Regarding the aforementioned technologies, which suffer from defects such as the loosening of the waterproof connector and the easy ingress of water into individual components, we have improved the new waterproof connector. By adjusting the mating structure and relationship between the rubber ring and the male and female connectors, we can achieve a better waterproof effect. Furthermore, through structural changes, we have increased the locking force, making the connector more difficult to loosen.

[0004] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows: the waterproof connector includes a waterproof connector male head connected to the housing via a male nut, and a waterproof connector female head connected to the waterproof connector male head via a female nut; a first female head sealing ring and a second female head sealing ring are provided between the waterproof connector female head and the waterproof connector male head; the feature is that: a male head stop groove is provided at the contact part between the waterproof connector male head and the side wall of the housing, and a first male head sealing ring is provided in the male head stop groove;

[0005] The first female sealing ring is disposed on the mating contact side of the male and female parts of the waterproof connector.

[0006] The second female sealing ring is disposed on the end face of the waterproof connector female head that contacts the waterproof connector male head. The end face of the waterproof connector female head is provided with a female head stop step. The waterproof connector male head presses the second female sealing ring to the female head stop step by a female head nut.

[0007] Furthermore, one end of the male connector of the waterproof connector is connected to a male nut via a thread, and the other end of the male connector of the waterproof connector is connected to a female nut via a thread.

[0008] Furthermore, the thread is a sawtooth thread, and the sawtooth is a helical tooth.

[0009] Furthermore, the female head nut is provided with an extension structure that mates with the female head stop step, and the extension structure of the female head nut presses the second female head sealing ring to the female head stop step through a threaded connection.

[0010] Furthermore, the male and female ends of the waterproof connector are connected via a plug and a slot.

[0011] Furthermore, the mating surfaces of the plug and the plug slot are configured as a foolproof structure.

[0012] Furthermore, the foolproof structure is an asymmetric structure.

[0013] The beneficial effects of this utility model are:

[0014] One advantage of this utility model is that a first female head sealing ring and a second female head sealing ring are provided between the waterproof connector female head and the waterproof connector male head. The extension structure of the female head nut presses the second female head sealing ring into the tightening groove of the female head stop step through the threaded connection, ensuring that the compression amount is within the design control range. This can better extend the service life of the sealing ring while ensuring the waterproof effect, and avoid the occurrence of water leakage caused by the sealing ring being damaged due to excessive deformation after long-term use.

[0015] One advantage of this invention is that one end of the male connector is connected to the male nut via a thread, and the other end of the male connector is connected to the female nut via a thread. The thread is a sawtooth thread with helical teeth; it has better self-locking force and enhances the sealing effect while ensuring load-bearing capacity.

[0016] One advantage of this invention is that it provides a waterproof connector male head and a waterproof connector female head that are connected by a plug and a plug slot, and the mating surface is designed with a foolproof structure, which can effectively avoid misoperation caused by human factors. Attached image description:

[0017] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Appendix Figure 2 This is a schematic diagram of the main body of the waterproof connector male of this utility model;

[0019] Appendix Figure 3 This is a schematic diagram of the main body of the waterproof connector female head of this utility model;

[0020] Appendix Figure 4 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Appendix Figure 5 This is a schematic diagram of the locking part of the plug end of this utility model;

[0022] Appendix Figure 6 This is a schematic diagram of the foolproof structure of this utility model; in the attached drawing:

[0023] 1. Housing; 2. Wire; 3. Male nut; 4. Waterproof connector male; 5. Waterproof connector female; 6. Female nut; 7. First male sealing ring; 8. First female sealing ring; 9. Second female sealing ring; 10. Female outer mold; 11. Male pin; 12. Female copper tube terminal; 13. Male stop groove; 14. Female stop step; 15. Foolproof structure. Detailed implementation method:

[0024] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "rear," "lower left," "upper right," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only 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 limiting the scope of protection of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] The specific embodiment of this utility model is as follows: The waterproof connector includes a waterproof connector male head 4 connected to the housing 1 via a male head nut 3, and a waterproof connector female head 5 connected to the waterproof connector male head 4 via a female head nut 6; a first female head sealing ring 8 and a second female head sealing ring 9 are provided between the waterproof connector female head 5 and the waterproof connector male head 4.

[0026] An improvement of the utility model is that: a male connector stop groove 13 is provided at the contact part between the male connector 4 and the side wall of the housing 1, and a first male connector sealing ring 7 is provided in the male connector stop groove 13.

[0027] Reference Figure 1 and Figure 5 , Figure 1 In the complete assembly state of this utility model, when the housing 1 and the waterproof connector male head 4 are locked, the first male head sealing ring 7 will be compressed into the male head stop groove 13. The male head nut 3 is continuously turned until the surface of the housing 1 and the surface of the waterproof connector male head 4 are completely attached. The compression of the first male head sealing ring 7 reaches the design value and is completely attached to the outer surface of the housing 1 and the inner wall of the waterproof connector male head 4, so as to achieve the purpose of waterproofing the end of the housing 1.

[0028] An improvement of this utility model is that the first female sealing ring 8 is disposed on the mating contact side of the waterproof connector male head 4 and the waterproof connector female head 5.

[0029] The second female sealing ring 9 is disposed on the end face of the waterproof connector female head 5 which contacts the waterproof connector male head 4. The end face of the waterproof connector female head 5 is provided with a female head stop step 14. The waterproof connector male head 4 presses the second female sealing ring 9 to the female head stop step 14 through the female head nut 6.

[0030] Furthermore, the female nut 6 is provided with an extension structure that cooperates with the female stop step 14. The extension structure of the female nut 6 presses the second female sealing ring 9 to the female stop step 14 through a threaded connection.

[0031] See Figure 4 When the waterproof connector female 5 and waterproof connector male 4 are mated, the waterproof connector female 5 first presses against the first female sealing ring 8, deforming it. Simultaneously, it squeezes the outer wall of the waterproof connector female 5 against the inner wall of the waterproof connector male 4. After pressing down, the female nut 6 is tightened further down until the end of the sawtooth thread. The outer surface of the waterproof connector male 4 contacts the female stop step 14, and the female nut 6 can no longer be tightened. At this point, the second female sealing ring 9 is deformed by pressure, simultaneously fitting against the waterproof connector male 4 and waterproof connector female 5, completely sealing the gap between them along the slope, thus completing the seal.

[0032] As a preferred embodiment of this utility model: one end of the male connector 4 is connected to the male nut 3 via a thread, and the other end of the male connector 4 is connected to the female nut 6 via a thread. As an improvement of this utility model: the thread is a sawtooth thread with helical teeth, which has better self-locking force and enhances the sealing effect while ensuring load-bearing capacity.

[0033] Another improvement of this utility model is that the waterproof connector male head 4 and the waterproof connector female head 5 are connected by a plug and a slot. The mating surfaces of the plug and the slot are configured with a foolproof structure 15.

[0034] The foolproof structure 15 can be an asymmetric physical barrier structure, such as:

[0035] ● Trapezoidal or L-shaped cross-section plug groove: The socket is designed as a trapezoidal groove or an L-shaped groove, and the plug is designed as a trapezoidal boss or an L-shaped boss accordingly;

[0036] ●Eccentric snap-fit ​​positioning: An eccentric semi-circular protrusion is provided on the side wall of the plug;

[0037] ●Combined asymmetry; it adopts a composite structure of "trapezoidal cross section + eccentric protrusion", with the protrusion located on the long side of the trapezoid;

[0038] ● It can also include color or pattern markings;

[0039] The foolproof structure 15 is an asymmetrical structure. Any foolproof structure 15 that can effectively prevent misoperation caused by human factors and can accurately connect the male PIN pin 11 to the female copper tube terminal 12 is within the protection scope of this utility model.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof connector, comprising a waterproof connector male (4) connected to a housing (1) via a male nut (3), and a waterproof connector female (5) connected to the waterproof connector male (4) via a female nut (6); a first female sealing ring (8) and a second female sealing ring (9) are provided between the waterproof connector female (5) and the waterproof connector male (4); characterized in that: The waterproof connector male head (4) is provided with a male head stop groove (13) at the contact part with the side wall of the housing (1), and a first male head sealing ring (7) is provided in the male head stop groove (13); The first female sealing ring (8) is disposed on the mating contact side of the waterproof connector male head (4) and the waterproof connector female head (5). The second female sealing ring (9) is disposed on the end face of the waterproof connector female head (5) that contacts the waterproof connector male head (4). The end face of the waterproof connector female head (5) is provided with a female head stop step (14). The waterproof connector male head (4) presses the second female sealing ring (9) to the female head stop step (14) through the female head nut (6).

2. The waterproof connector according to claim 1, characterized in that... One end of the male connector (4) of the waterproof connector is connected to the male nut (3) by a thread, and the other end of the male connector (4) of the waterproof connector is connected to the female nut (6) by a thread.

3. The waterproof connector according to claim 2, characterized in that... The thread is a sawtooth thread, and the sawtooth is a helical tooth.

4. The waterproof connector according to any one of claims 1-3, characterized in that... The female head nut (6) is provided with an extension structure that cooperates with the female head stop step (14). The extension structure of the female head nut (6) presses the second female head sealing ring (9) to the female head stop step (14) through a threaded connection.

5. The waterproof connector according to claim 4, characterized in that... The waterproof connector male head (4) and the waterproof connector female head (5) are connected by a plug and a slot.

6. The waterproof connector according to claim 5, characterized in that... The mating surfaces of the plug and the plug slot are configured as a foolproof structure (15).

7. The waterproof connector according to claim 6, characterized in that... The foolproof structure (15) is an asymmetric structure.

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