A multi-head RF coaxial connector

Abstract

This utility model relates to the field of radio frequency coaxial connector technology, and discloses a multi-head radio frequency coaxial connector, including a connecting base. Multiple female connector assemblies are installed in the middle of the connecting base, and male connector assemblies are installed on the upper side of the female connector assemblies. The multi-head radio frequency coaxial connector of this utility model, through the flared structure on the upper guide ring of the connecting cylinder in the female connector assembly, can effectively guide the insertion direction of the male connector assembly during blind mating, reducing alignment difficulties. Simultaneously, the flared opening design at the upper part of the connecting groove provides tolerance space during the insertion of the male connector assembly's locking block. Even in situations with limited visibility, the locking block can smoothly slide into the connecting groove, and the subsequent rotation and locking of the hook-like structure completes the connection. This significantly improves the convenience and reliability of blind mating operations, solving the problem of connection difficulties or damage caused by alignment deviations during blind mating of traditional BNC connectors.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency coaxial connector technology, and in particular to a multi-head radio frequency coaxial connector. Background Technology

[0002] RF coaxial connectors are key components used for transmitting radio frequency signals and are widely used in communications, radar, test and measurement, and other fields. Their core function is to enable signal connections between different modules or devices in an RF system, requiring low loss, high shielding, and good mechanical stability. BNC connectors, as a typical example, are widely used in video surveillance, instrumentation, and other scenarios due to their simple structure and rapid connection. They utilize the male connector's protrusion and the female connector's bayonet joint for a degree of versatility and reliability.

[0003] In the context of back-end interface panels for large communication equipment, multiple RF signal lines often need to be connected simultaneously. Operators must perform connector insertion and removal while the equipment is running or space is limited. Because the alignment of the male and female heads of BNC connectors relies on precise visual coordination, the alignment accuracy of the female head's bayonet and the male head's protrusion is high, and there is a lack of guiding structures, misalignment and other problems are very likely to occur when operators cannot clearly observe the interface position (such as in low-light environments at night, when the panel is obstructed, or when multiple interfaces are densely arranged). This leads to low connection efficiency and makes it difficult to meet the actual needs of blind insertion and removal operations. Utility Model Content

[0004] The main purpose of this utility model is to provide a multi-head radio frequency coaxial connector, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-head radio frequency coaxial connector, including a connecting base, wherein a plurality of female head assemblies are installed in the middle of the connecting base, and a male head assembly is installed on the upper side of the female head assembly; The female connector assembly includes a connecting cylinder, multiple connecting grooves, and a guide ring. The multiple connecting grooves are equally spaced on the upper part of the connecting cylinder. The male connector assembly is disposed inside the connecting cylinder. The lower inner side of the guide ring is installed on the upper outer periphery of the connecting cylinder.

[0006] Preferably, the upper part of the connecting groove has a funnel-shaped opening, the funnel-shaped opening is distributed along the circumference of the cylinder, and the surface of the connecting cylinder wall between two adjacent funnel-shaped openings is triangular, and the lower part of the connecting groove is hook-shaped.

[0007] Preferably, the upper side of the guide ring is trumpet-shaped.

[0008] Preferably, the male connector assembly includes a connecting nut, a second connecting cylinder, and locking blocks. The connecting nut is disposed in the middle of the lower outer periphery of the second connecting cylinder, and a plurality of locking blocks are disposed in the upper outer periphery of the second connecting cylinder. The outer periphery of the second connecting cylinder is disposed inside the first connecting cylinder.

[0009] Preferably, there are at least two card blocks, and the card blocks correspond to the connecting slots.

[0010] Preferably, the upper part of the connecting nut is provided with a plurality of elastic plates at equal intervals, and the upper part of the plurality of elastic plates is installed on the lower part of the compression ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The flared structure on the upper guide ring of the female connector assembly effectively guides the insertion direction of the male connector assembly during blind mating, reducing alignment difficulties. Simultaneously, the flared opening design at the top of the connecting groove provides tolerance space during the insertion of the male connector assembly's locking block, allowing the block to slide smoothly into the connecting groove even in situations with limited visibility. This, combined with the subsequent rotation and locking of the hook-like structure, completes the connection, significantly improving the convenience and reliability of blind mating operations. This solves the problem of connection difficulties or damage caused by alignment deviations during blind mating of traditional BNC connectors. Furthermore, the elastic deformation of the elastic plate on the upper part of the connecting nut under the action of the compression ring further enhances the tightness of the fit between the male and female connector assemblies after blind mating, ensuring connection stability after blind mating and meeting the practical needs of simultaneous blind mating operations on multiple interfaces. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a multi-head radio frequency coaxial connector according to the present invention; Figure 2 This is a schematic diagram of the elastic sheet mounting structure of a multi-head radio frequency coaxial connector according to the present invention; Figure 3 This is a schematic diagram of the connection slot structure of a multi-head radio frequency coaxial connector according to the present invention.

[0013] In the diagram: 1. Connecting base; 2. Female connector assembly; 201. Connecting cylinder one; 202. Connecting groove; 203. Guide ring; 3. Male connector assembly; 301. Connecting nut; 302. Connecting cylinder two; 303. Clamping block; 304. Elastic sheet; 305. Compression ring. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figure 1-3As shown, a multi-head radio frequency coaxial connector includes a connecting base 1, a plurality of female head components 2 are installed in the middle of the connecting base 1, and a male head component 3 is installed on the upper side of the female head component 2. The connecting base 1 is the basic carrier, and the multiple female head components 2 are integrated. Each female head component 2 is matched with a male head component 3 to realize the "multi-head" connection function. The female connector assembly 2 includes a connecting cylinder 201, multiple connecting grooves 202, and a guide ring 203. The multiple connecting grooves 202 are equally spaced on the upper part of the connecting cylinder 201. The male connector assembly 3 is disposed inside the connecting cylinder 201. The lower inner side of the guide ring 203 is installed on the upper outer periphery of the connecting cylinder 201. The female connector assembly 2 replaces the bayonet connection of the traditional BNC female connector with the connecting grooves 202 and the guide ring 203, which optimizes the structure and allows for blind insertion and removal, making it easy to use.

[0016] The upper part of the connecting groove 202 has a trumpet-shaped opening, which is distributed along the circumference of the cylinder. The wall surface of the connecting cylinder 201 between two adjacent trumpet-shaped openings is triangular. The lower part of the connecting groove 202 is hook-shaped. The upper trumpet-shaped opening provides "error tolerance space" for the locking block 303 of the male connector assembly 3. Even if there is a slight deviation in the insertion angle, the locking block 303 can still be guided into the groove. It is especially suitable for blind insertion and removal scenarios. The tip of the triangular wall between adjacent openings can prevent the top of the connecting cylinder 201 from obstructing the advancement of the locking block 303. Even if there is a slight deviation in the insertion angle, the locking block 303 can still be guided into the groove.

[0017] The upper side of the guide ring 203 is flared, and the flared structure on the upper side forms a "flared" guide. The insertion direction can be corrected by the inclined surface in the early stage of the male connector assembly 3 insertion, reducing the difficulty of alignment. It forms a "double guide" with the flared opening of the connecting groove 202, providing guidance from the overall insertion path to the alignment of the local locking block 303, further improving the efficiency and accuracy of blind insertion and removal.

[0018] The male connector assembly 3 includes a connecting nut 301, a second connecting cylinder 302, and a locking block 303. The connecting nut 301 is located in the middle of the lower outer periphery of the second connecting cylinder 302, and multiple locking blocks 303 are located in the upper outer periphery of the second connecting cylinder 302. The outer periphery of the second connecting cylinder 302 is located inside the first connecting cylinder 201.

[0019] There are at least two card blocks 303, and each card block 303 corresponds to a connecting slot 202. At least two card blocks 303 are symmetrically distributed along the circumference. The distance between two adjacent card blocks 303 is an integer multiple of the distance between two adjacent connecting slots 202, ensuring that each card block 303 has a corresponding connecting slot 202.

[0020] Multiple elastic plates 304 are evenly spaced on the upper part of the connecting nut 301. The upper part of the multiple elastic plates 304 is installed on the lower part of the compression ring 305. Under the action of the compression ring 305, the elastic plates 304 can generate radial contraction or expansion, which not only enhances the tightness of the mechanical connection, but also absorbs the small displacement caused by vibration or temperature change through elastic deformation. The evenly distributed elastic plates 304 ensure uniform force and avoid local overtightness or looseness, further ensuring the stability of radio frequency signal transmission.

[0021] Working principle: When the male connector assembly 3 is connected to the female connector assembly 2, the connecting cylinder 302 of the male connector assembly 3, under the action of external force, enters the interior of the connecting cylinder 201 through the flared upper side of the guide ring 203 on the upper part of the connecting cylinder 201 of the female connector assembly 2. At this time, the locking block 303 of the male connector assembly 3 corresponds to the flared opening of the connecting groove 202 of the female connector assembly 2. With the insertion action, the locking block 303 slides into the connecting groove 202 along the flared opening until it can no longer move forward. Then, after rotating the male connector assembly 3, the locking block 303 is locked into the hook-shaped structure at the lower part of the connecting groove 202 to achieve fixation. At the same time, the elastic plate 304 on the upper part of the connecting nut 301 undergoes elastic deformation under the action of the compression ring 305, tightly abutting the guide ring 203 on the upper part of the connecting cylinder 201, further enhancing the stability of the connection between the male connector assembly 3 and the female connector assembly 2. The cooperation between multiple female connector assemblies 2 and corresponding male connector assemblies 3 on the connecting base 1 can realize the function of simultaneous connection of multiple heads.

[0022] 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 multiple head radio frequency coaxial connector comprising a connection base (1), characterized in that: Multiple female connector assemblies (2) are installed in the middle of the connecting base (1), and male connector assemblies (3) are installed on the upper side of the female connector assemblies (2). The female connector assembly (2) includes a connecting cylinder (201), multiple connecting grooves (202) and a guide ring (203). The multiple connecting grooves (202) are equally spaced on the upper part of the connecting cylinder (201). The male connector assembly (3) is disposed inside the connecting cylinder (201). The lower inner side of the guide ring (203) is installed on the upper outer periphery of the connecting cylinder (201).

2. A multiple RF coaxial connector as claimed in claim 1, wherein: The upper part of the connecting groove (202) has a trumpet-shaped opening, which is distributed along the circumference of the cylinder. The wall surface of the connecting cylinder (201) between two adjacent trumpet-shaped openings is triangular, and the lower part of the connecting groove (202) is hook-shaped.

3. A multiple RF coaxial connector as claimed in claim 1, wherein: The upper side of the guide ring (203) is trumpet-shaped.

4. A multiple RF coaxial connector as claimed in claim 1, wherein: The male connector assembly (3) includes a connecting nut (301), a second connecting cylinder (302), and a locking block (303). The connecting nut (301) is located in the middle of the lower outer periphery of the second connecting cylinder (302), and a plurality of locking blocks (303) are located in the upper outer periphery of the second connecting cylinder (302). The outer periphery of the second connecting cylinder (302) is located inside the first connecting cylinder (201).

5. A multiple RF coaxial connector as claimed in claim 4, wherein: There are at least two card blocks (303), and each card block (303) corresponds to a connecting slot (202).

6. A multiple RF coaxial connector as claimed in claim 4, wherein: The upper part of the connecting nut (301) is provided with a plurality of elastic plates (304) at equal intervals, and the upper part of the plurality of elastic plates (304) is installed on the lower part of the compression ring (305).

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