High waterproof connector tail sealing structure

Abstract

The utility model provides a highly waterproof connector tail sealing structure, which comprises a sealing ring, a rear shell at the tail of a connector and a cable, the cable comprises an inner conductor, an outer conductor and a cable sheath which are sequentially arranged from inside to outside, the sealing ring is embedded at the rear end of an inner cavity of the rear shell, and the outer conductor is embedded in the cable sheath along the insertion direction of the cable. A first sealing part and a second sealing part are sequentially arranged on the inner side of the sealing ring, the first sealing part comprises a plurality of sealing teeth arranged in the axial direction of the sealing ring, and the second sealing part extends in the radial direction of the sealing ring and protrudes out of the first sealing part. And after the cable is rotatably inserted into the inner cavity of the rear shell, the sealing part I is tightly matched with the peripheral side of the cable sheath, and the end part of the cable sheath is pressed on the sealing part II and is tightly matched with the sealing part II. The novel cable connector is simple in structure, easy and convenient to install, capable of achieving comprehensive sealing in the axial direction and the radial direction, not prone to disengagement when a cable is installed, more effective in water prevention and good in sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of cable connector technology, and in particular to a highly waterproof connector tail sealing structure. Background Technology

[0002] With the continuous development of mobile communications, product performance requirements are becoming increasingly stringent, as are waterproofing requirements for outdoor and some indoor environments. Currently, there are two main types of waterproofing structures for the tail section of RF coaxial feeder connectors in the industry.

[0003] One method uses O-rings with good elasticity. During installation, the O-ring is first inserted into the annular groove of the cable, and then inserted into the rear housing of the connector together. Waterproofing is achieved by compressing and deforming. This method involves many installation steps, and the connection between the O-ring and the rear housing of the connector cannot be formed as a whole, resulting in poor waterproofing.

[0004] The second type is a spiral cable. During installation, the O-ring is first inserted into the groove of the connector's rear housing, and then the spiral cable is screwed into the connector's rear housing by twisting. During the twisting process, the O-ring is easy to fall off, and because the sealing mating surface between the cable's outer side and the O-ring is spiral-shaped, the O-ring is difficult to match with it to form a good sealing effect, resulting in a poor sealing effect. Utility Model Content

[0005] The present invention aims to provide a highly waterproof connector tail sealing structure to overcome the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a high waterproof connector tail sealing structure, including a sealing ring, a rear housing of the connector tail, and a cable. The cable includes an inner conductor, an outer conductor, and a cable sheath arranged sequentially from the inside to the outside. The sealing ring is embedded in the rear end of the inner cavity of the rear housing. Along the direction of cable insertion, a sealing part one and a sealing part two are arranged sequentially on the inner side of the sealing ring. The sealing part one includes a plurality of sealing teeth arranged along the axial direction of the sealing ring. The sealing part two extends radially along the sealing ring and protrudes from the sealing part one. After the cable is rotated and inserted into the inner cavity of the rear housing, the sealing part one is tightly fitted with the outer periphery of the cable sheath, and the end of the cable sheath is pressed on the sealing part two and tightly fitted with the sealing part two.

[0007] Furthermore, in the aforementioned highly waterproof connector tail sealing structure, the rear end of the rear housing is provided with a cable socket, the front side of the cable socket is provided with a groove, and the sealing ring is embedded in the groove and fits with the groove gap.

[0008] Furthermore, in the aforementioned highly waterproof connector tail sealing structure, the sealing ring is made of soft, elastic plastic with a hardness in the range of 30HA-50HA. Silicone rubber is preferred.

[0009] Furthermore, in the aforementioned highly waterproof connector tail sealing structure, the front end of the inner cavity of the rear housing is provided with an inner spiral pattern that matches the spiral pattern on the outer side of the outer conductor.

[0010] Furthermore, in the aforementioned high waterproof connector tail sealing structure, the sealing part two has a top-stop compression surface one on the side near the sealing part one. After the cable is inserted into the inner cavity of the rear housing, the end face of the cable sheath is tightly connected to the top-stop compression surface one.

[0011] Furthermore, in the aforementioned high waterproof connector tail sealing structure, the other side of the sealing part two extends to the outside of the main body of the sealing ring and is provided with an inclined stop-top compression surface two. The rear housing is also provided with a stop-top located on the front side of the groove. The stop-top is an inclined surface extending from the groove to the inner spiral pattern. After the cable is inserted into the inner cavity of the rear housing, the stop-top compression surface two is squeezed and held on the stop-top by the cable sheath.

[0012] Furthermore, in the aforementioned high waterproof connector tail sealing structure, the sealing part has at least three sealing teeth.

[0013] Compared with the prior art, the advantages of this utility model are: the innovative structure of this new model is simple, easy to install, can achieve full axial and radial sealing, and will not detach when installing cables. It is more effective in waterproofing and has a good sealing effect. It is a highly waterproof connector tail sealing structure with high waterproof stability and high production stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the tail sealing structure of the high waterproof connector of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the tail sealing structure of the high waterproof connector of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the sealing ring structure of the tail sealing structure of the high waterproof connector of this utility model;

[0018] Figure 4 This is a cross-sectional view of the sealing ring of the tail sealing structure of the high waterproof connector of this utility model;

[0019] In the diagram: 1. Sealing ring; 11. Sealing part one; 12. Sealing part two; 121. Top compression surface one; 122. Top compression surface two; 2. Rear housing; 21. Groove; 22. Top; 23. Inner spiral pattern; 3. Cable; 31. Inner conductor; 32. Outer conductor; 33. Cable sheath. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figure 1-4 As shown, a highly waterproof connector tail sealing structure includes a sealing ring 1, a rear housing 2 at the connector tail, and a cable 3. The cable 3 includes an inner conductor 31, an outer conductor 32, and a cable sheath 33 arranged sequentially from the inside to the outside. The sealing ring 1 is embedded in the rear end of the inner cavity of the rear housing 2, along the direction of cable 3 insertion (e.g., ...). Figure 1 As indicated by the middle arrow, the inner side of the sealing ring 1 is provided with a sealing part 11 and a sealing part 12 in sequence. The sealing part 11 includes a plurality of sealing teeth arranged along the axial direction of the sealing ring 1. To ensure the sealing effect, the number of sealing teeth is not less than 3. The sealing part 12 extends radially along the sealing ring 1 and protrudes from the sealing part 11. After the cable 3 is rotated and inserted into the inner cavity of the housing 2, the sealing part 11 fits tightly with the outer periphery of the cable sheath 33. The toothed sealing part 11 and the cable sheath 33 cooperate to seal the outer periphery of the cable, resulting in a better sealing effect. At the same time, the end of the cable sheath 33 is pressed on the sealing part 12 and fits tightly with the sealing part 12 to seal the end of the cable 3, achieving a comprehensive axial and radial seal.

[0023] Among them, such as Figure 1-2 As shown, the rear end of the rear housing 2 is provided with a cable socket, and the front side of the cable socket is provided with a groove 21. The sealing ring 1 is embedded in the groove 21 and is clearance-fitted with the groove 21 to facilitate the installation of the sealing ring 1.

[0024] The sealing ring 1 is made of soft, elastic plastic with a hardness in the range of 30HA-50HA on the Shore A scale, such as silicone rubber. This ensures that the sealing ring 1 can fill the groove 21 and the gap between the cable and the connector when compressed, thereby ensuring a sealing effect.

[0025] In addition, such as Figure 1As shown, the front end of the inner cavity of the rear housing 2 is provided with an inner spiral pattern 23 that matches the spiral pattern on the outer side of the outer conductor 32.

[0026] To ensure the compression sealing effect of sealing part 12, such as Figure 1-4 As shown, the sealing part 2 12 has a stop-pressing surface 121 on one side near the sealing part 11, and the other side of the sealing part 2 12 extends to the outside of the main body of the sealing ring, with an inclined stop-pressing surface 122. The rear housing 2 also has a stop-top 22 located in front of the groove 21. The stop-top 22 is an inclined surface extending from the groove 21 to the inner spiral 23. The stop-pressing surface 122 and the stop-top 22 cooperate to prevent the sealing ring 1 from detaching from the groove 21, so that the sealing ring 1 and the connector form an integral connection structure. At the same time, after the cable 3 is inserted into the inner cavity of the rear housing 2, the end face of the cable sheath 33 is pressed against the stop-pressing surface 121, while the stop-pressing surface 122 is pressed and held by the cable sheath 33 against the stop-top 22. Therefore, as the cable 3 is twisted and inserted into the rear housing 2, the sealing ring 1 is squeezed and tightened more tightly, thus connecting tightly with the connector and not being driven out of the groove with the insertion of the cable, resulting in a good sealing effect.

[0027] In summary, this novel innovative structure is simple, easy to install, and can achieve comprehensive axial and radial sealing. It will not detach when installing cables, is more effective at waterproofing, and has a good sealing effect. It is a highly waterproof connector tail sealing structure with high waterproof stability and high production stability.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A highly waterproof connector tail sealing structure, characterized in that: The device includes a sealing ring, a rear housing at the tail of the connector, and a cable. The cable includes an inner conductor, an outer conductor, and a cable sheath arranged sequentially from the inside to the outside. The sealing ring is embedded in the rear end of the inner cavity of the rear housing. Along the direction of cable insertion, a sealing part one and a sealing part two are arranged sequentially on the inner side of the sealing ring. The sealing part one includes multiple sealing teeth arranged along the axial direction of the sealing ring. The sealing part two extends radially along the sealing ring and protrudes from the sealing part one. After the cable is rotated and inserted into the inner cavity of the rear housing, the sealing part one is tightly fitted with the outer periphery of the cable sheath, and the end of the cable sheath is pressed against the sealing part two and tightly fitted with the sealing part two.

2. The high waterproof connector tail sealing structure according to claim 1, characterized in that: The rear end of the rear housing is provided with a cable socket, and the front side of the cable socket is provided with a groove. The sealing ring is embedded in the groove and fits with the groove through a gap.

3. The high waterproof connector tail sealing structure according to claim 1 or 2, characterized in that: The sealing ring is made of soft, elastic plastic with a hardness in the range of 30HA-50HA.

4. The high waterproof connector tail sealing structure according to claim 1, characterized in that: The front end of the inner cavity of the rear housing is provided with an inner spiral pattern that matches the spiral pattern on the outer side of the outer conductor.

5. The high waterproof connector tail sealing structure according to claim 1, characterized in that: The sealing part 2 has a top-stopping and pressing surface 1 on the side near the sealing part 1. After the cable is inserted into the inner cavity of the housing, the end face of the cable sheath is tightly connected to the top-stopping and pressing surface 1.

6. The high waterproof connector tail sealing structure according to claim 5, characterized in that: The other side of the sealing part two extends to the outside of the main body of the sealing ring and is provided with an inclined stop-top compression surface two. The rear housing is also provided with a stop-top located in front of the groove. The stop-top is an inclined surface extending from the groove to the inner spiral. After the cable is inserted into the inner cavity of the rear housing, the stop-top compression surface two is squeezed and held on the stop-top by the cable sheath.

7. The high waterproof connector tail sealing structure according to claim 1, characterized in that: The sealing part has at least three sealing teeth.

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