Quick disconnection screw sleeve structure suitable for radio frequency connector

Abstract

The utility model provides a quick disconnection threaded sleeve structure suitable for a radio frequency connector, which is characterized by comprising a threaded sleeve and a contact pin coaxially distributed in an inner cavity of the threaded sleeve through a supporting piece, one end of the contact pin is used for being connected with a first inner conductor of a first connector in an inserted and matched mode, and the other end of the contact pin is used for being connected with a second inner conductor of a second connector in an inserted and matched mode. One end of the pin is connected with a first inner conductor of a first connector, the other end of the pin can be connected with a second inner conductor of a second connector in an inserted and matched mode, the threaded sleeve is arranged on a first shell of a first connector in a sleeving mode and is in threaded connection with the supporting piece, and a guiding piece only allowing the supporting piece and the first shell to move relatively in the axial direction is arranged between the supporting piece and the first shell. Therefore, the threaded sleeve can be rotated to drive the pin to axially slide, so that the pin can be always connected with one of the first inner conductor and the second inner conductor and can be connected with or disconnected from the other one of the first inner conductor and the second inner conductor. According to the utility model, rapid signal disconnection of the radio frequency connector can be controlled without plugging.

Description

Technical Field

[0001] The utility model relates to the field of radio frequency connectors, in particular to a quick disconnect screw sleeve structure suitable for radio frequency connectors. Background Art

[0002] A radio frequency connector is a device for transmitting high-frequency signals, mainly used in wireless communication systems. Its working principle is to transmit signals from one place to another through the propagation of electromagnetic waves. Common radio frequency connectors usually include a first connector and a second connector, which are connected by threads. An inner conductor pin is provided at the center of the inner cavity of the first connector, and an inner conductor pin seat is provided at the center of the inner cavity of the second connector. For details, please refer to the structure disclosed in the Chinese utility model patent "A radio frequency connector with a tube screw joint" with patent number 202021866714.8 (authorization announcement number CN 213043143 U).

[0003] The RF connectors currently on the market generally use a screw-down structure to disconnect the signal. Although this design ensures the stability of the connection to a certain extent, its plug-in and unplug times are limited, and strict specifications must be followed during use. In addition, due to the wide variety of RF connectors, screw-down connectors are prone to loss and confusion when managing multiple connectors or terminal loads, and frequent screwing actions may also cause damage to components. Therefore, in view of these shortcomings of the existing technology, in-depth improvements and optimizations are still needed to improve the ease of use, durability and management efficiency of RF connectors. Utility Model Content

[0004] The technical problem to be solved by the utility model is to propose a quick disconnect screw sleeve structure suitable for a radio frequency connector in view of the above technical status, which can control the quick disconnection of the signal without plugging or unplugging.

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a quick disconnect screw sleeve structure suitable for a radio frequency connector, used for disconnecting the first connector and the second connector of the radio frequency connector, characterized in that it includes a screw sleeve and a pin coaxially distributed in the inner cavity of the screw sleeve through a support member, one end of the pin is used to be plugged and connected with the first inner conductor of the first connector, and the other end of the pin can be plugged and connected with the second inner conductor of the second connector, the screw sleeve is sleeved on the first outer shell of the first connector, the screw sleeve is threadedly connected to the support member, and a guide member is provided between the support member and the first outer shell that only allows the two to move relative axially, so that rotating the screw sleeve can drive the pin to slide axially, so that the pin can be always connected to one of the first and second inner conductors, and connected or disconnected from the other inner conductor of the first and second inner conductors.

[0006] Furthermore, the support member includes an insulator sleeved on the pin and a sliding bushing tightly sleeved outside the insulator, and the sliding bushing is threadedly connected to the screw sleeve, which ensures insulation between the screw sleeve and the pin and ensures the service life of the sliding bushing threadedly connected to the screw sleeve.

[0007] Furthermore, the outer periphery of the sliding bushing has a convex portion with an external thread, which can slide in an axially extending guide groove on the first shell and be threadedly connected to the screw sleeve. The convex portion and the guide groove form the guide member, thereby preventing the sliding bushing from rotating with the screw sleeve.

[0008] In order to make the structure balanced and stable, preferably, there are multiple protrusions distributed at intervals along the circumferential direction, and correspondingly, there are also multiple guide grooves.

[0009] Preferably, a recessed portion located in the first housing is formed between adjacent protrusions, and the recessed portion can abut against the inner wall of the first housing. The recessed portion can support the first housing from the inside to prevent the first connector from being unable to be screwed with the second connector due to the grooves in the first housing.

[0010] In order to prevent the insulator from being displaced, preferably, the middle part of the pin has a radius contraction section, and both ends of the radius contraction section form step surfaces respectively, and the insulator is limited between the two step surfaces.

[0011] In order to facilitate the insertion of the pin into the insulator, preferably, the insulator is an integral piece composed of two halves separated along a radius.

[0012] Preferably, at least a portion of the outer surface of the screw sleeve is provided with an anti-slip texture to facilitate the user to rotate the screw sleeve.

[0013] Compared with the prior art, the core advantage of the quick disconnect screw sleeve structure designed in the present invention is that, by simply rotating the screw sleeve, the screw sleeve can be easily driven to drive the pins coaxially distributed in its inner cavity to slide along the axial direction of the screw sleeve, so that the RF connector and terminal load equipped with this quick disconnect screw sleeve structure can quickly disconnect and reconnect the signal through a simple rotating operation. This utility model is particularly suitable for environments that have high requirements for the plugging and unplugging frequency of RF connectors / terminal loads, and at the same time, the usage scenarios are complex and varied, and there are many types of connectors. It not only greatly improves the convenience of operation of RF connectors, but also effectively reduces the risk of component damage caused by frequent plugging and unplugging while ensuring the stability of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the decomposition of

[0016] Figure 3 It is a schematic diagram of the structure of the embodiment of the utility model when assembled with the first connector and the second connector;

[0017] Figure 4 for Figure 3 Schematic diagram of the decomposition of

[0018] Figure 5 for Figure 3 Cross-sectional view in case of signal disconnection;

[0019] Figure 6 for Figure 3 A cross-sectional view of the signal connection situation. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 6 As shown, a preferred embodiment of a quick disconnect screw sleeve structure suitable for a radio frequency connector of the utility model is shown. The quick disconnect screw sleeve structure of this embodiment can be used to disconnect the first connector 5 and the second connector 6 of the radio frequency connector. The interfaces at both ends of the radio frequency connector are the international standard IEC61169-15, SMA interface for easy understanding and use. In fact, this embodiment can be applied to most radio frequency connectors and terminal loads.

[0022] This embodiment includes a screw sleeve 1, a support member and a pin 4. The support member can be an integral member, or a support member composed of a sliding bushing 2 and an insulator 3. The latter is taken as an example here. The pin 4 is coaxially distributed in the inner cavity of the screw sleeve 1 through the support member composed of the insulator 3 and the sliding bushing 2. Specifically, the insulator 3 is sleeved on the innermost pin 4, the sliding bushing 2 is tightly sleeved outside the insulator 3, and the screw sleeve 1 is at the outermost layer and is threadedly connected with the sliding bushing 2.

[0023] One end of the pin 4 is used to be plugged and connected with the first inner conductor 53 of the first connector 5, and the other end of the pin 4 can be plugged and connected with the second inner conductor 62 of the second connector 6. The pin 4 is always connected to one of the first and second inner conductors, and is connected or disconnected from the other of the first and second inner conductors.

[0024] In this embodiment, the two ends of the pin 4 are respectively a first plug 41 and a second plug 42. Depending on the different RF connectors, the pin 4 can also be designed to have a plug at one end and a socket at the other end, so as to adapt to the situation where one of the first connector 5 and the second connector 6 has a socket inside and the other has a plug; or both ends are sockets, so as to adapt to the situation where both the first connector 5 and the second connector 6 have plugs inside.

[0025] The middle of the plug pin 4 has a radius contraction section 43, and the two ends of the radius contraction section 43 form step surfaces, and the insulator 3 is limited between the two step surfaces. In order to facilitate the insertion of the plug pin 4 into the insulator 3, the insulator 3 is an integral part composed of two halves separated along the radius.

[0026] In order to effectively fix the pin 4, the opposite ends of the first inner conductor 53 and the second inner conductor 62 are designed as closed structures. This design allows the first inner conductor 53 and the second inner conductor 62 to tightly clamp the corresponding ends of the pin 4, thereby ensuring appropriate insertion and extraction force.

[0027] The screw sleeve 1 of the quick disconnect screw sleeve structure is sleeved on the first shell 51 of the first connector 5. The first shell 51 is provided with an axially extending guide groove 52. The outer periphery of the sliding bushing 2 has a convex portion 21 with an external thread, which can be inserted into the guide groove 52 to slide and be threadedly connected with the screw sleeve 1. The convex portion 21 plays the role of a guide pin, and together with the guide groove 52, forms a guide member that only allows the sliding bushing 2 and the first shell 51 to move relative axially, which can prevent the sliding bushing 2 from rotating with the screw sleeve 1, so that the rotating screw sleeve 1 can drive the pin 4 to slide axially. A gap is left between the first shell 51 and the second shell 61 for the screw sleeve 1 to rotate. In order to facilitate the user to rotate the screw sleeve 1, at least part of the outer surface of the screw sleeve 1 is provided with an anti-slip texture 41.

[0028] The sliding bushing 2 may have multiple protrusions 21, and in this embodiment, there are four protrusions 21 spaced apart along the circumference of the sliding bushing 2. Correspondingly, four guide grooves 52 are also formed on the first housing 51. A recess 22 located in the first housing is formed between adjacent protrusions 21, and the recess 22 can abut against the inner wall of the first housing 51, so that the first connector 5 will not shrink inward when tightened with the second connector 6, preventing the first housing 51 from being unable to tighten due to the grooves.

[0029] The specific operation method is: install the present embodiment with the first connector 5, the convex portion 21 of the sliding bushing 2 is correspondingly inserted into the guide groove 52 of the first housing 51, and the first connector 5 and the second connector 6 are tightened. The user rotates the screw sleeve 1 of the present embodiment, as shown in FIG. Figure 5 As shown, the pin 4 is brought to slide to the left with the rotation of the screw sleeve 1, thereby disconnecting from the second inner conductor 62; the user rotates the screw sleeve 1 of this embodiment in the opposite direction, as shown in FIG. Figure 6 As shown, the pin 4 is slid to the right side as the screw sleeve 1 rotates, thereby connecting with the second inner conductor 62.

Claims

1. A quick disconnect screw sleeve structure suitable for a radio frequency connector, used for disconnecting a first connector (5) and a second connector (6) of the radio frequency connector, characterized in that: It comprises a screw sleeve (1) and a pin (4) coaxially distributed in the inner cavity of the screw sleeve (1) through a support member, one end of the pin (4) is used to be plugged and connected with a first inner conductor (53) of a first connector (5), and the other end of the pin (4) can be plugged and connected with a second inner conductor (62) of a second connector (6). The screw sleeve (1) is sleeved on a first outer shell of the first connector (5), the screw sleeve (1) is threadedly connected with the support member, and a guide member is provided between the support member and the first outer shell (51) for only allowing the two to move relative to each other axially, so that rotating the screw sleeve (1) can drive the pin (4) to slide axially, so that the pin (4) can be always connected to one of the first and second inner conductors, and connected or disconnected from the other of the first and second inner conductors.

2. The quick disconnect screw sleeve structure according to claim 1, characterized in that: The support member comprises an insulator (3) sleeved on the plug pin (4) and a sliding bushing (2) tightly sleeved outside the insulator (3); the sliding bushing (2) is threadedly connected to the screw sleeve (1).

3. The quick disconnect screw sleeve structure according to claim 2, characterized in that: The outer periphery of the sliding bushing (2) has a convex portion (21) with an external thread. The convex portion (21) can slide in an axially extending guide groove (52) provided on the first shell (51) and be threadedly connected to the screw sleeve (1). The convex portion (21) and the guide groove (52) form the guide member.

4. The quick disconnect screw sleeve structure according to claim 3 is characterized in that: There are a plurality of protrusions (21) distributed at intervals along the circumferential direction, and correspondingly, there are also a plurality of guide grooves (52).

5. The quick disconnect screw sleeve structure according to claim 4, characterized in that: A recessed portion (22) located inside the first shell is formed between adjacent protrusions (21), and the recessed portion (22) can abut against the inner wall of the first shell (51).

6. The quick disconnect screw sleeve structure according to claim 2, characterized in that: The middle part of the plug pin (4) has a radius contraction section (43), both ends of the radius contraction section (43) respectively form step surfaces, and the insulator (3) is limited between the two step surfaces.

7. The quick disconnect screw sleeve structure according to any one of claims 2 to 6, characterized in that: The insulator (3) is an integral part composed of two halves separated along a radius.

8. The quick disconnect screw sleeve structure according to any one of claims 1 to 6, characterized in that: At least part of the outer surface of the screw sleeve (1) is provided with an anti-slip texture (41).

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