A small radio frequency coaxial connector interface

Abstract

This utility model discloses a small radio frequency coaxial connector interface, belonging to the field of radio frequency coaxial connector technology. Its key technical features include a male connector and a female connector. Connecting lines are provided at the ends of the male and female connectors that are far apart. An alignment component is provided on the side of the male and female connectors that are close together. A sealing component is provided inside the female connector. By providing the sealing component, when the male and female connectors are mated, the sliding ring can tightly fit against the surface of the male connector under the action of a return spring. The sealing ring on its inner wall precisely aligns with the mating groove on the surface of the male connector, forming a multi-layered sealing structure that effectively prevents the intrusion of moisture, dust, and other impurities. Simultaneously, the sliding ring dynamically adjusts its position during the insertion and removal process, adapting to dynamic sealing requirements. Furthermore, the elastic force of the return spring ensures that the sealing component always maintains a good sealing state, thereby enhancing the sealing effect.

Description

Technical Field

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

[0002] An RF coaxial connector is an electronic component used to transmit radio frequency (RF) signals. It enables the connection and disconnection of RF signals in a circuit and is widely used in fields such as communications, broadcasting, radar, navigation, and medical equipment. RF coaxial connectors are typically composed of a male connector and a female connector. The male connector usually has protruding pins or pins, while the female connector has corresponding sockets that can receive the male connector pins or pins. The connection of the RF signal transmission path is achieved through the mutual insertion and mating of the male and female connectors.

[0003] Currently, in humid, dusty, or liquid-splashed environments, common small RF coaxial connectors on the market are susceptible to moisture, dust, and other impurities entering through the gaps between the male and female connectors. This can lead to connector oxidation, poor contact, and shorten the connector's lifespan. Furthermore, during the connection process, the alignment accuracy of the male and female connectors often depends on the operator's experience and lacks a dedicated alignment guide structure, making it easy for mating deviations to occur. This not only increases the difficulty of connection but may also cause wear on the internal structure of the connector due to long-term misaligned insertion and removal, affecting the stability of signal transmission and even causing signal attenuation or interruption.

[0004] To address this, a small radio frequency coaxial connector interface is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a small RF coaxial connector interface that can solve the problem that in humid, dusty, or liquid-splashed environments, moisture, dust, and other impurities can easily penetrate the internal structure of the male and female connectors through the connection gap, leading to connector oxidation, poor contact, and shortened connector lifespan. Furthermore, during the connection process, the alignment accuracy of the male and female connectors often depends on the operator's experience, lacking a dedicated alignment guide structure, which easily leads to mating deviations. This not only increases the difficulty of connection but may also cause wear on the internal structure of the connector due to long-term misaligned insertion and removal, affecting the stability of signal transmission and even causing signal attenuation or interruption.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a small radio frequency coaxial connector interface, including a male connector and a female connector, with connecting lines provided at opposite ends of the male and female connectors, and an alignment component provided on the side of the male and female connectors close to each other. A sealing component is provided inside the female connector, and the sealing component includes a sliding ring. A U-shaped groove is formed on the side of the female connector close to the male connector, and the sliding ring is disposed inside the U-shaped groove. A return spring is fixedly connected to the inner side of the U-shaped groove, and the number of return springs is set to multiple. The other end of the return spring is fixedly connected to the sliding ring, and a sealing ring is adhered to the inside of the sliding ring.

[0007] Preferably, the alignment component includes a connecting ring, which is fixedly connected to the side of the female connector near the male connector. An alignment groove is provided inside the connecting ring. An embedded ring is fixedly connected to the side of the male connector near the female connector and the embedded ring cooperates with the alignment groove. A sliding ring is slidably connected to the surfaces of the connecting ring and the male connector, and the inner wall of the sliding ring is in contact with the surfaces of the connecting ring and the male connector.

[0008] Preferably, mounting grooves are provided on both sides of the inner wall of the alignment groove, a locking block is provided inside the mounting groove, a fastening spring is fixedly connected between the locking block and the opposite side of the inner wall of the mounting groove, and a locking groove is provided on both sides of the embedding ring to cooperate with the locking block.

[0009] Preferably, the connecting ring has grooves on both sides, a pull rod passes through the inside of the groove, the pull rod extends into the inside of the mounting groove and is fixedly connected to the locking block, and the end of the pull rod is located inside the groove and flush with the groove.

[0010] Preferably, the top and bottom of the inner wall of the alignment groove are provided with positioning grooves, and the top and bottom of the embedded ring are fixedly connected with positioning blocks that cooperate with the positioning grooves.

[0011] Preferably, a limiting rod extends through the top of the female connector, and a limiting groove is formed on the top of the sliding ring, with the limiting groove cooperating with the limiting rod.

[0012] Preferably, a fastening tension spring is sleeved on the surface of the limiting rod, and the two ends of the fastening tension spring are fixedly connected to the end of the limiting rod and the top of the female connector, respectively.

[0013] Preferably, the surface of the male connector is provided with a mating groove, which is used in conjunction with a sealing ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting a sealing component, when the male connector and female connector are mated, the sliding ring can tightly fit the surface of the male connector under the action of the return spring. The sealing ring on its inner wall is precisely mated with the mating groove on the surface of the male connector, which can form a multi-seal structure. This can effectively prevent moisture, dust and other impurities from entering. At the same time, the sliding ring dynamically adjusts its position during the insertion and removal process to adapt to dynamic sealing requirements. The elastic force of the return spring ensures that the sealing component always maintains a good sealing state, thereby enhancing the sealing effect.

[0016] 2. By setting up an alignment component, the alignment groove in the connecting ring can cooperate with the embedded ring of the male connector to provide initial guidance for the docking process, thereby significantly improving the alignment accuracy of the male and female connectors. In addition, the locking block in the alignment groove can engage with the locking groove of the embedded ring under the action of the fastening spring, realizing a stable connection between the male and female connectors, preventing loosening in a vibration environment, and thus improving the stability of the connection. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the small radio frequency coaxial connector interface of this utility model;

[0018] Figure 2 This is a schematic diagram showing the disassembled male and female connectors of this utility model;

[0019] Figure 3 This utility model Figure 1 Front sectional view;

[0020] Figure 4 This is a schematic diagram of the sealing assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the alignment component of this utility model;

[0022] Figure 6 This is a cross-sectional view of the connecting ring of this utility model.

[0023] In the diagram, 1. Male connector; 2. Female connector; 3. Connecting wire; 4. Alignment assembly; 401. Connecting ring; 402. Alignment groove; 403. Embedded ring; 404. Positioning groove; 405. Positioning block; 5. Sealing assembly; 501. Sliding ring; 502. Return spring; 503. Sealing ring; 6. U-shaped groove; 7. Mounting groove; 8. Locking block; 9. Fastening spring; 10. Locking groove; 11. Groove; 12. Pull rod; 13. Limiting rod; 14. Limiting groove; 15. Fastening tension spring; 16. Mating groove. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 The present invention provides the following technical solution:

[0026] A small radio frequency coaxial connector interface includes a male connector 1 and a female connector 2. A connecting line 3 is provided at the far end of the male connector 1 and the female connector 2. An alignment component 4 is provided on the side of the male connector 1 and the female connector 2 that are close to each other. A sealing component 5 is provided inside the female connector 2. The sealing component 5 includes a sliding ring 501. A groove 6 is opened on the side of the female connector 2 that is close to the male connector 1. The sliding ring 501 is disposed inside the groove 6. A reset spring 502 is fixedly connected to the inner side of the groove 6. The number of reset springs 502 is set to multiple. The other end of the reset spring 502 is fixedly connected to the sliding ring 501. A sealing ring 503 is bonded to the inside of the sliding ring 501.

[0027] In this embodiment: by setting the sealing component 5, the sliding ring 501 serves as the core moving part of the sealing component 5. It can slide on the surfaces of the connecting ring 401 and the male connector 1. When the male connector 1 and the female connector 2 are mated, it can tightly fit the surface of the male connector 1, forming the first physical barrier to block the intrusion of impurities. At the same time, through dynamic adjustment of its own position, it can adapt to positional changes during the insertion and removal process, ensuring that the sealing state remains effective. The U-shaped groove 6 provides space for the installation and movement of the sliding ring 501, and limits the movement trajectory of the sliding ring 501 to prevent it from shifting or falling off during operation, ensuring that the sliding ring 501 always performs the sealing function within the preset range. The return spring 5... One end of the 02 is fixed to the inside of the groove 6, and the other end is connected to the sliding ring 501. Its elastic force can continuously apply pressure to the sliding ring 501, so that the sliding ring 501 always fits tightly against the surface of the male connector 1. Even after long-term use or slight vibration, it can push the sliding ring 501 to reset through its own deformation, maintain stable sealing pressure, and avoid sealing failure due to loose fit. The sealing ring 503 is the key component to achieve sealing. When the sliding ring 501 fits against the male connector 1, the sealing ring 503 can accurately align with the mating groove 16 on the surface of the male connector 1, and fill the gap with its own material elastic deformation to form an elastic seal, further enhancing the effect of blocking water vapor, dust and other impurities, and improving the overall sealing performance.

[0028] Specifically, such as Figure 5As shown, the alignment component 4 includes a connecting ring 401, which is fixedly connected to the side of the female connector 2 near the male connector 1. An alignment groove 402 is provided inside the connecting ring 401. An embedded ring 403 is fixedly connected to the side of the male connector 1 near the female connector 2, and the embedded ring 403 cooperates with the alignment groove 402. A sliding ring 501 is slidably connected to the surfaces of the connecting ring 401 and the male connector 1, and the inner wall of the sliding ring 501 is in contact with the surfaces of the connecting ring 401 and the male connector 1.

[0029] Specifically, such as Figure 6 As shown, mounting grooves 7 are provided on both sides of the inner wall of the alignment groove 402. A locking block 8 is provided inside the mounting groove 7. A fastening spring 9 is fixedly connected between the locking block 8 and the opposite side of the inner wall of the mounting groove 7. A locking groove 10 is provided on both sides of the embedded ring 403 to cooperate with the locking block 8.

[0030] Specifically, such as Figure 6 As shown, grooves 11 are provided on both sides of the connecting ring 401. A pull rod 12 passes through the inside of the groove 11. The pull rod 12 extends into the inside of the mounting groove 7 and is fixedly connected to the locking block 8. The end of the pull rod 12 is located inside the groove 11 and is flush with the groove 11.

[0031] Specifically, such as Figure 5 As shown, positioning grooves 404 are provided at the top and bottom of the inner wall of the alignment groove 402, and positioning blocks 405 that cooperate with the positioning grooves 404 are fixedly connected to the top and bottom of the embedded ring 403.

[0032] In this embodiment: by setting the alignment component 4, the connecting ring 401 is the basic support structure of the alignment component 4, which can provide an installation carrier for other alignment-related structures such as the alignment groove 402 and the mounting groove 7. At the same time, its own structure also provides a support surface for the sliding ring 501, ensuring the coordinated realization of alignment and sealing functions. The alignment groove 402 can form a mating relationship with the embedded ring 403 of the male connector 1, providing a preliminary guiding channel for the docking process. By inserting the embedded ring 403 into the alignment groove 402, the horizontal offset of the male connector 1 and the female connector 2 is restricted, ensuring the accuracy of the docking direction. This reduces the probability of misalignment. The mounting groove 7 provides installation space for the locking block 8 and the fastening spring 9, while also limiting the movement range of the locking block 8, ensuring that the locking block 8 can only extend and retract in a preset direction, thus guaranteeing the stability of its fit with the locking groove 10. When the inserting ring 403 is inserted into the alignment groove 402 to the appropriate position, the locking block 8 will engage with the locking grooves 10 on both sides of the inserting ring 403, achieving mechanical locking of the male connector 1 and the female connector 2, preventing detachment due to vibration or other external forces after docking, and enhancing the stability of the connection. The elastic force of the fastening spring 9 can continuously push the locking block 8 to extend into the alignment groove 402, ensuring... The locking block 8 can be tightly engaged with the slot 10. When the insert ring 403 is inserted, the locking block 8 is compressed by the force of the fastening spring 9 and retracts into the mounting groove 7. After reaching the position of the slot 10, the fastening spring 9 returns to its original position and pushes the locking block 8 into the slot 10, thus achieving automatic locking. The slot 10 can cooperate with the locking block 8 to form a locking structure. Its shape and position are adapted to the locking block 8. When the locking block 8 is embedded in the slot 10, it can restrict the axial movement of the insert ring 403 in the alignment groove 402 through mechanical engagement, ensuring that the position of the male connector 1 and the female connector 2 is fixed after docking. The groove 11 can provide a space for the pull rod 12 to be accommodated. The end is flush with the surface of the connecting ring 401, which can avoid accidental contact or interference caused by the protrusion of the pull rod 12. When it is necessary to separate the male connector 1 and the female connector 2, pulling the pull rod 12 can drive the locking block 8 to compress the fastening spring 9, so that the locking block 8 can be disengaged from the locking groove 10, releasing the locking state and facilitating connector separation. The operation is simple and convenient. The positioning groove 404 can cooperate with the positioning block 405 to achieve precise positioning, which can further restrict the circumferential rotation of the embedded ring 403 in the alignment groove 402, ensuring that the male connector 1 and the female connector 2 are accurately aligned in the circumferential direction, avoiding poor contact caused by rotational misalignment, and further improving the docking accuracy.

[0033] Specifically, such as Figure 3 , Figure 4 As shown, a limiting rod 13 runs through the inside of the top of the female connector 2, and a limiting groove 14 is opened on the top of the sliding ring 501, and the limiting groove 14 is used in conjunction with the limiting rod 13.

[0034] Specifically, such as Figure 3 , Figure 4As shown, a fastening spring 15 is sleeved on the surface of the limiting rod 13, and the two ends of the fastening spring 15 are fixedly connected to the end of the limiting rod 13 and the top of the female connector 2, respectively.

[0035] In this embodiment: With the above settings, when the sliding ring 501 is not in use, the limiting rod 13 can effectively limit it. Through cooperation with the limiting groove 14, the sliding ring 501 is stably restricted inside the loop groove 6, preventing it from accidentally sliding out of the loop groove 6 due to external collisions, vibrations, or other factors. This ensures the structural integrity of the sealing assembly 5 in the non-working state and lays the foundation for the rapid effectiveness of the sealing function during subsequent docking. The limiting groove 14 can be used in conjunction with the limiting rod 13, providing a channel for the limiting rod 13 to be inserted and moved. The fastening tension spring 15, through its own elastic tension, can always apply a force to the limiting rod 13 in the direction of the limiting groove 14, making the limiting rod 13 tightly embedded in the limiting groove 14. This enhances the stability of the cooperation between the limiting rod 13 and the limiting groove 14, preventing the limiting rod 13 from dislodging from the limiting groove 14 due to vibrations or other factors, and ensuring the normal operation of the sealing assembly 5.

[0036] Specifically, such as Figure 2 As shown, the surface of the male connector 1 is provided with a mating groove 16, which is used in conjunction with the sealing ring 503.

[0037] In this embodiment: Through the above settings, the mating groove 16 is a key structure that works with the sealing ring 503 to achieve precise sealing. When the male connector 1 and the female connector 2 are connected, the sliding ring 501 will move towards the male connector 1 under the action of the return spring 502. The sealing ring 503 at the bottom of its inner wall will gradually embed into the mating groove 16. The shape of the mating groove 16 is adapted to the sealing ring 503, which can provide fitting space for the sealing ring 503. The sealing ring 503 can fully fill the mating groove 16 through its own elastic deformation, thereby increasing the contact area and tightness of the two. This tight fitting relationship effectively prevents water vapor, dust and other impurities from entering from the contact part between the male connector 1 and the sliding ring 501, further enhancing the sealing effect of the sealing component 5.

[0038] Working principle: First, hold the male connector 1 and the female connector 2, aligning the insert ring 403 of the male connector 1 with the alignment groove 402 of the connecting ring 401 of the female connector 2. Then, gradually insert the insert ring 403 into the alignment groove 402. The positioning blocks 405 at the top and bottom of the insert ring 403 will then enter the positioning grooves 404 at the top and bottom of the inner wall of the alignment groove 402. Under the guidance of the positioning blocks 405 and the positioning grooves 404, the circumferential rotation of the male connector 1 and the female connector 2 can be effectively prevented, ensuring the central axis of both is maintained. Line alignment achieves initial precise positioning. As the insert ring 403 continues to be inserted into the alignment groove 402, the insert ring 403 gradually squeezes the locking block 8, causing the locking block 8 to compress the fastening spring 9 and retract into the mounting groove 7. After the insert ring 403 is inserted and aligned, the locking block 8 will be locked into the locking groove 10 on the surface of the insert ring 403 under the elastic force of the fastening spring 9, thereby achieving precise docking of the male connector 1 and the female connector 2. Then, the limiting rod 13 is pulled upward, and the limiting rod 13 will disengage from the limiting groove 14, while the sliding ring 501... The sliding ring 501 is pushed to the connection point of the connecting ring 401 and the male connector 1 by the reset force of the return spring 502, so that the sliding ring 501 can tightly cover the connection gap. The sealing ring 503 on the inner wall of the sliding ring 501 can be inserted into the mating groove 16. Through the elastic deformation of the sealing ring 503, it can fully fit with the mating groove 16, forming an effective seal and preventing water vapor, dust and other impurities from entering the connection gap. When it is necessary to separate the male connector 1 from the female connector 2, first pull the limit rod 13 upward, and then slide the sliding ring 501 again. Once inside the U-shaped groove 6, release the limiting rod 13. The limiting rod 13 will move downward under the downward pulling force of the fastening spring 15, allowing the limiting rod 13 to be inserted into the limiting groove 14 on the surface of the male connector 1, thus limiting the position of the sliding ring 501. Then, locate the pull rod 12 in the grooves 11 on both sides of the connecting ring 401, and pull the pull rod 12 with a tool or your finger. The pull rod 12 will drive the locking block 8 to move inward into the mounting groove 7, compressing the fastening spring 9, causing the locking block 8 to exit from the slot 10, thus releasing the locking state.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A small radio frequency coaxial connector interface comprising a male connector (1) and a female connector (2), characterized in that: A connecting line (3) is provided at the opposite ends of the male connector (1) and the female connector (2). An alignment component (4) is provided on the side of the male connector (1) and the female connector (2) that are close to each other. A sealing component (5) is provided inside the female connector (2). The sealing component (5) includes a sliding ring (501). A groove (6) is provided on the side of the female connector (2) that is close to the male connector (1). The sliding ring (501) is located inside the groove (6). A return spring (502) is fixedly connected to the inside of the groove (6). The number of return springs (502) is set to multiple. The other end of the return spring (502) is fixedly connected to the sliding ring (501). A sealing ring (503) is bonded inside the sliding ring (501).

2. A small radio frequency coaxial connector interface according to claim 1, characterized in that: The alignment component (4) includes a connecting ring (401), which is fixedly connected to the side of the female connector (2) near the male connector (1). An alignment groove (402) is provided inside the connecting ring (401). An embedded ring (403) is fixedly connected to the side of the male connector (1) near the female connector (2), and the embedded ring (403) cooperates with the alignment groove (402). A sliding ring (501) is slidably connected to the surfaces of the connecting ring (401) and the male connector (1), and the inner wall of the sliding ring (501) is in contact with the surfaces of the connecting ring (401) and the male connector (1).

3. A small radio frequency coaxial connector interface according to claim 2, wherein: The inner wall of the alignment groove (402) is provided with mounting grooves (7) on both sides. The mounting groove (7) is provided with a locking block (8). A fastening spring (9) is fixedly connected between the locking block (8) and the opposite side of the inner wall of the mounting groove (7). The two sides of the embedding ring (403) are provided with locking grooves (10) that cooperate with the locking block (8).

4. A small radio frequency coaxial connector interface according to claim 3, wherein: The connecting ring (401) has grooves (11) on both sides. A pull rod (12) passes through the inside of the groove (11). The pull rod (12) extends into the inside of the mounting groove (7) and is fixedly connected to the locking block (8). The end of the pull rod (12) is located inside the groove (11) and is flush with the groove (11).

5. A small radio frequency coaxial connector interface according to claim 2, wherein: The top and bottom of the inner wall of the alignment groove (402) are provided with positioning grooves (404), and the top and bottom of the embedded ring (403) are fixedly connected with positioning blocks (405) that cooperate with the positioning grooves (404).

6. A small radio frequency coaxial connector interface according to claim 1, wherein: The top of the female connector (2) has a limiting rod (13) that passes through it. The top of the sliding ring (501) has a limiting groove (14) that works in conjunction with the limiting rod (13).

7. A small radio frequency coaxial connector interface according to claim 6, wherein: A fastening spring (15) is sleeved on the surface of the limiting rod (13), and the two ends of the fastening spring (15) are fixedly connected to the end of the limiting rod (13) and the top of the female connector (2), respectively.

8. A small radio frequency coaxial connector interface according to claim 1, wherein: The male connector (1) has a mating groove (16) on its surface, which is used in conjunction with the sealing ring (503).

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