A quick release coupling

Abstract

The utility model is suitable for connector technical field provides a kind of quick-release connector, the quick-release connector includes: shell and connecting component;The shell inside is provided with the installation cavity for installing connecting component, the installation cavity is provided with first installation cavity and second installation cavity;The connecting component includes connecting piece and crown spring, the connecting piece is located first installation cavity, the crown spring is located in second installation cavity.This utility model is provided with shell, connecting piece in connecting component is installed and located in first installation cavity, crown spring is located in second installation cavity, one end of connecting connector is positioned using crown spring to make that connecting connector is completely installed with quick-release connector to be connected with equipment to carry out the transmission of electric signal by connecting piece, the middle part of crown spring is arc concave and has elasticity, quick-release connector is connected with connecting connector plug-in connection, need not use tool to install or dismount connecting connector.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and in particular relates to a quick-release connector. Background Technology

[0002] SMA (Sub-Miniature Version A) connectors are common RF coaxial connectors widely used in high-frequency applications. The mating of their male and female connectors is fundamental to reliable RF signal transmission. Due to their small size and high frequency (up to 18-26.5 GHz), SMA connectors are widely used in wireless communication, test and measurement, aerospace and defense, medical devices, IoT and consumer electronics, and microwave RF circuits.

[0003] In the existing technology, the connection method of the male and female heads of SMA connectors is mostly threaded connection, with internal threads on the male head and external threads on the female head. However, during use, a torque wrench must be used to install the male and female heads in place. Manually tightening too loosely will result in poor contact, while tightening too much will damage the threads or even cause the central connecting part to bend. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a quick-release connector, which aims to solve the problem that in the prior art, the connection method of the male and female heads of SMA connectors is mostly threaded connection, with the male head having an internal thread and the female head having an external thread. However, during use, a torque wrench must be used to install the male and female heads into place. Manually tightening too loosely will result in poor contact, while tightening too much will damage the threads or even cause the central connecting part to bend.

[0005] This utility model embodiment is implemented as follows: a quick-release connector, the quick-release connector comprising:

[0006] The housing has an internal mounting cavity for mounting connecting components, and the mounting cavity includes a first mounting cavity and a second mounting cavity.

[0007] A connecting assembly includes a connector and a crown spring. The connector is located in a first mounting cavity and is used for electrical signal transmission when connected to a quick-release connector. The crown spring is located in a second mounting cavity and is a hollow cylindrical shape. The outer wall of the connecting connector, which is plugged into the quick-release connector, presses against the inner wall of the crown spring to position the connecting connector.

[0008] Preferably, the crown spring is an integral structure, the cross-sectional width of the crown spring gradually narrows from both ends to the middle, and the cross-section of the crown spring in the middle is arc-shaped and concave.

[0009] Preferably, the crown spring has a plurality of elastic cantilever arms in the middle, and the plurality of elastic cantilever arms are arc-shaped. The elastic cantilever arms are used to position the connecting joint inserted into the cavity of the crown spring.

[0010] Preferably, the outer shell includes an outer shell body and an inner core. The outer shell body has a hollow structure. The first port of the outer shell body is used to install the inner core. The outer shell body and the inner core are fixedly connected. A second mounting cavity for installing a crown spring is formed between the outer shell body and the outer side of the inner core. The second port of the outer shell body is used for plugging and unplugging with a connecting connector.

[0011] Preferably, the inner core is inserted into the first port of the outer shell body with one end facing the second mounting cavity. The inner core is provided with a first mounting cavity for mounting the connector. The inner core is provided with a connecting hole that is collinear with the axis of the outer shell body. The inner core is used to connect with the device. The outer wall surface of the inner core is provided with an annular stepped protrusion for restricting the movement of the crown spring.

[0012] Preferably, the connecting assembly further includes a connecting cylinder, which is fixedly connected to the inner wall of the first mounting cavity of the inner core. The connecting cylinder is used to protect the connector. The connecting cylinder has a mounting hole for installing the connector inside. The connector is fixedly connected to the connecting cylinder. The mounting hole is collinear with the axis of the outer shell so that the quick-release connector and the connecting connector can be plugged in and unplugged.

[0013] Preferably, the crown spring is made of any one or more of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze.

[0014] Preferably, the connector is made of any one or more of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze, and the connecting cylinder is made of any one or more of polytetrafluoroethylene, perfluoroethylene-propylene copolymer, polyvinylidene fluoride, and polychlorotrifluoroethylene.

[0015] Preferably, the outer casing is made of any one or more of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze.

[0016] This utility model provides a quick-release connector. The utility model includes a housing with a first mounting cavity and a second mounting cavity inside. A connector from the connecting assembly is installed in the first mounting cavity, and a crown spring is located in the second mounting cavity. When the connector is connected to the quick-release connector, the connector is inserted into the housing and contacts the center of the hollow cylindrical crown spring. The crown spring positions one end of the connector to ensure complete installation, allowing electrical signal transmission via the connector and the device. The center of the crown spring is arc-shaped and concave, providing elasticity. When the connector needs to be disassembled, external force can be used to squeeze the elastic center of the crown spring, facilitating the pull-out of the connector. No tools are needed to install or disassemble the connector, preventing poor contact due to excessive looseness or bending of the central connector due to excessive tightness. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a quick-release connector provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the bottom structure of a quick-release connector provided in an embodiment of this utility model;

[0019] Figure 3 A half-sectional structural diagram of a quick-release connector provided for an embodiment of this utility model;

[0020] Figure 4 A bottom view of a quick-release connector provided for an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the crown spring in a quick-release connector provided for an embodiment of the present utility model.

[0022] In the attached diagram: 1. Outer shell; 11. Outer shell body; 12. Inner core; 121. Connecting hole; 2. Connecting assembly; 21. Connecting piece; 22. Crown spring; 221. Elastic cantilever; 23. Connecting cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] like Figure 1-2The diagram shown is a structural diagram of a quick-release connector provided in an embodiment of the present utility model, including: a housing 1, wherein the housing 1 is provided with an installation cavity for installing a connecting component 2, and the installation cavity is provided with a first installation cavity and a second installation cavity;

[0026] The connecting component 2 includes a connector 21 and a crown spring 22. The connector 21 is located in the first mounting cavity and is used for electrical signal transmission when connected to a quick-release connector. The crown spring 22 is located in the second mounting cavity and is a hollow cylindrical shape. The outer wall of the connecting connector that is plugged into and connected to the quick-release connector presses against the inner wall of the crown spring 22 so that the crown spring 22 positions the connecting connector.

[0027] In this embodiment of the invention, preferably, the quick-release connector is compatible with universal connectors. It allows for direct plug-and-play connection to the connector, enabling installation and use with a simple plug-in and removal for easy storage with a pull-out mechanism. The quick-release connector mainly comprises a housing 1 and a connecting component 2. The housing 1 has two mounting cavities for installing the connecting component 2: a first mounting cavity and a second mounting cavity. The connecting component 2 mainly includes a connector 21 and a crown spring 22. The connector 21 is installed in the first mounting cavity, and the crown spring 22 is installed in the second mounting cavity. When the quick-release connector is connected to a device, the connector 21 in the first mounting cavity is electrically connected to the device to facilitate signal transmission. The crown spring 22 inside the second mounting cavity is a hollow cylindrical shape and has elasticity. It can wrap around the connecting joint that connects to the quick-release connector, ensuring full contact and complete connection, avoiding poor contact or bending of the central connecting piece 21, which would affect the signal transmission effect after connection. The cross-section of the crown spring 22 is arc-shaped and concave so that the inner wall of the crown spring 22 covers the connecting joint. When it is necessary to remove the connecting joint from the quick-release connector, the elasticity of the crown spring 22 and the external force applied by the user can directly remove the connecting joint from the quick-release connector. This makes the installation and removal of the quick-release connector without the need for tools, and the direct insertion and removal can improve the efficiency of operation.

[0028] In one embodiment of this utility model, a housing 1 is provided, inside which a first mounting cavity and a second mounting cavity are provided. The connector 21 in the connecting assembly 2 is installed and located in the first mounting cavity, and the crown spring 22 is located in the second mounting cavity. When the connecting connector is connected to the quick-release connector, the connecting connector is inserted into the housing 1 and contacts the middle of the hollow cylindrical crown spring 22. The crown spring 22 is used to position one end of the connecting connector so that the connecting connector and the quick-release connector are fully installed, thereby connecting to the device through the connector 21 for the transmission of electrical signals. The middle of the crown spring 22 is arc-shaped and concave and has elasticity. When it is necessary to disassemble the connecting connector, the connecting connector can be used to squeeze the middle of the elastic crown spring 22 by external force, so as to facilitate the pulling out of the connecting connector. There is no need to use tools to install or disassemble the connecting connector, avoiding poor contact due to the connection between the quick-release connector and the connecting connector being too loose or bending of the central connector 21 due to being too tight.

[0029] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the crown spring 22 is an integral structure, the cross-sectional width of the crown spring 22 gradually narrows from both ends to the middle, and the cross-section of the middle part of the crown spring 22 is arc-shaped and concave.

[0030] In this embodiment of the present invention, preferably, the crown spring 22 can be an integrally formed cylindrical structure, and the diameters at both ends of the crown spring 22 can be the same, or the same as the inner diameter of the second mounting cavity inside the outer shell 1 so that the crown spring 22 can be fully installed in the second mounting cavity of the outer shell 1. The cross-sectional width of the crown spring 22 gradually narrows from both ends to the middle and makes the middle part arc-shaped concave, which can concentrate elastic deformation, reduce a certain insertion and extraction force, and facilitate the direct insertion and removal of the connector. When the connector is inserted with the quick-release connector, the connecting part of the connector can be completely wrapped by the middle part of the crown spring 22 and squeezed to make the connector fully connected with the quick-release connector, preventing poor contact due to loose connection.

[0031] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the crown spring 22 is provided with a plurality of elastic cantilever arms 221 in the middle, and the plurality of elastic cantilever arms 221 are arc-shaped. The elastic cantilever arms 221 are used to position the connecting joint inserted into the cavity of the crown spring 22.

[0032] In this embodiment of the present invention, preferably, a plurality of elastic cantilever arms 221 arranged in parallel are provided in the middle of the crown spring 22. Different numbers of elastic cantilever arms 221 can be provided according to the current carrying requirements. The outer wall surface of the connecting part of the connector is positioned by the concave side of the elastic cantilever arm 221.

[0033] like Figures 1-5As shown, in a preferred embodiment of the present invention, the crown spring 22 is made of any one or more of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze.

[0034] In this embodiment of the utility model, preferably, the crown spring 22 can be made of brass C3604 material, which balances strength and plasticity, can withstand elastic deformation during insertion and removal without failure, and has good fatigue resistance, so that it can still recover its shape after being compressed by the connector multiple times. It also has good electrical and thermal conductivity to avoid contact failure caused by concentrated current heating. The surface of the crown spring 22 can also be gold plated. The dimensions of the crown spring 22 can be a diameter of 7.2mm and a length of 8.3mm, with a tolerance of ±0.05mm.

[0035] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the outer shell 1 includes an outer shell body 11 and an inner core 12. The outer shell body 11 has a hollow structure. The first port of the outer shell body 11 is used to install the inner core 12. The outer shell body 11 and the inner core 12 are fixedly connected. A second mounting cavity for installing the crown spring 22 is formed between the outer surfaces of the outer shell body 11 and the inner core 12. The second port of the outer shell body 11 is used for plugging and unplugging with the connecting connector.

[0036] In this embodiment of the present invention, preferably, the outer shell 1 for installing the connecting component 2 includes an outer shell body 11 and an inner core 12. The first port of the hollow outer shell body 11 is used to install the inner core 12, and a second mounting cavity is formed between the outer side of the inner core 12 and the internal cavity of the outer shell body 11 to facilitate the installation of the crown spring 22. The connecting connector can be inserted into the second port of the outer shell body 11 and covered by the crown spring 22.

[0037] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the inner core 12 is inserted into the first port of the outer shell body 11 with one end facing the second mounting cavity. The inner core 12 is provided with a first mounting cavity for mounting the connector 21. The inner core 12 is provided with a connecting hole 121 that is collinear with the axis of the outer shell body 11. The inner core 12 is used to connect with the device. The outer wall surface of the inner core 12 is provided with an annular stepped protrusion for restricting the movement of the crown spring 22.

[0038] In this embodiment of the present invention, preferably, one end of the inner core 12 inserted into the first port of the outer shell body 11 faces the second mounting cavity. The inner core 12 is a hollow structure to form a first mounting cavity for mounting the connector 21. The inner core 12 is collinear with the axis of the outer shell 1, so that the axes of the connecting hole 121, the first mounting cavity and the second mounting cavity are collinear. This allows the connector 21 to be connected to the socket on the connector when the connector is connected to the quick-release connector, so as to achieve electrical conduction and facilitate the transmission of current and electrical signals. The hollow crown spring 22 in the second mounting cavity inside the outer shell body 11 mechanically locks the connector, and the crown spring 22 with a certain elasticity can play a role in resisting vibration and preventing the connector from falling off.

[0039] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the connecting component 2 further includes a connecting cylinder 23, which is fixedly connected to the inner wall of the first mounting cavity of the inner core 12. The connecting cylinder 23 is used to protect the connector 21. The connecting cylinder 23 has a mounting hole for mounting the connector 21 inside. The connector 21 is fixedly connected to the connecting cylinder 23. The mounting hole is collinear with the axis of the outer shell 1 so that the quick-release connector and the connecting connector can be plugged in and unplugged.

[0040] In this embodiment of the present invention, preferably, a connecting cylinder 23 for protecting the connector 21 can also be provided in the first mounting cavity of the inner core 12. The connecting cylinder 23 is fixed in the first mounting cavity, and the connector 21 is fixed in the hollow connecting cylinder 23. The connector 21 is installed in the mounting hole at the center of the connecting cylinder 23. The connecting cylinder 23 is used to fix the position of the connector 21, which can also prevent short circuits and maintain impedance.

[0041] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the connector 21 is made of any one or more of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze, and the connecting cylinder 23 is made of any one or more of polytetrafluoroethylene, perfluoroethylene propylene copolymer, polyvinylidene fluoride, and polychlorotrifluoroethylene.

[0042] In this embodiment of the utility model, preferably, the connector 21 can be made of brass C3604 material, which combines strength and plasticity, can withstand elastic deformation during insertion and removal without failure, and has good fatigue resistance, as well as good electrical and thermal conductivity to avoid contact failure caused by concentrated current heating. It can also be gold-plated on the surface of the crown spring 22, which reduces the wear rate when the gold-plated connector 21 mates with the gold-plated socket in the connector. The connecting sleeve 23 sleeved on the outside of the connector 21 can be made of polytetrafluoroethylene (Teflon). Teflon has the following functions in protecting the connector 21: corrosion resistance to extend the service life of the connector 21, low coefficient of friction to reduce mechanical wear during insertion and removal, stable dielectric constant, low high-frequency signal loss, and can ensure the integrity of signal transmission of the connector 21 in the equipment. The dimensions of the connector 21 can be a diameter of 1.50 mm and a length of 5.10 mm; the dimensions of the connecting sleeve 23 can be a diameter of 4.1 mm and a length of 5.15 mm.

[0043] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the outer shell 1 is made of any one or more of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze.

[0044] In this embodiment of the present invention, preferably, the outer shell 1 is composed of an outer shell body 11 and an inner core 12. Both the outer shell body 11 and the inner core 12 can be made of brass C3604 material. However, the surface of the outer shell body 11 can be nickel-plated. The nickel plating can isolate the brass C3604 from contact with the environment to prevent corrosion, and can also enhance its wear resistance, increase hardness and improve insertion and removal life. Moreover, the reduced conductivity of the nickel layer can maintain the battery shielding effectiveness and prevent signal leakage. The surface treatment of the inner core 12, which is inserted into the outer shell body 11, can be gold-plated, which can reduce its wear rate. The dimensions of the outer shell 1 can be 17.9*12.3mm, with a diameter of 12.3mm, and a diameter of 10.9±0.1 after flattening on both sides. The inner core 12 is partially located inside the outer shell body 11. The length of the outer shell body 11 is 13.65mm, the diameter of the protruding part of the inner core 12 is 2.7mm, the maximum diameter inside the outer shell body 11 is 7.83mm, and the total length is 9.05mm.

[0045] The above description is only a preferred embodiment of the present utility model and is 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 quick-release connector, characterized in that, The quick-release connector includes: The housing has an internal mounting cavity for mounting connecting components, and the mounting cavity includes a first mounting cavity and a second mounting cavity. A connecting assembly includes a connector and a crown spring. The connector is located in a first mounting cavity and is used for electrical signal transmission when connected to a quick-release connector. The crown spring is located in a second mounting cavity and is a hollow cylindrical shape. The outer wall of the connecting connector, which is plugged into the quick-release connector, presses against the inner wall of the crown spring to position the connecting connector.

2. The quick-release connector according to claim 1, characterized in that, The crown spring is a one-piece structure, and the cross-sectional width of the crown spring gradually narrows from both ends to the middle, with the middle cross-section of the crown spring being arc-shaped and concave.

3. The quick-release connector according to claim 1, characterized in that, The crown spring has several elastic cantilever arms in the middle, and these elastic cantilever arms are arc-shaped. The elastic cantilever arms are used to position the connecting joint that is inserted into the cavity of the crown spring.

4. The quick-release connector according to claim 1, characterized in that, The outer shell includes an outer shell body and an inner core. The outer shell body has a hollow structure. The first port of the outer shell body is used to install the inner core. The outer shell body and the inner core are fixedly connected. A second mounting cavity for installing a crown spring is formed between the outer shell body and the outer side of the inner core. The second port of the outer shell body is used for plugging and unplugging with a connecting connector.

5. The quick-release connector according to claim 4, characterized in that, The inner core is inserted into the first port of the outer shell body with one end facing the second mounting cavity. The inner core is provided with a first mounting cavity for installing connectors. The inner core is provided with a connecting hole that is collinear with the axis of the outer shell body. The inner core is used to connect with the device. The outer wall surface of the inner core is provided with annular stepped protrusions for restricting the movement of the crown spring.

6. The quick-release connector according to claim 1, characterized in that, The connecting assembly further includes a connecting cylinder, which is fixedly connected to the inner wall of the first mounting cavity of the inner core. The connecting cylinder is used to protect the connector. The connecting cylinder has a mounting hole for installing the connector. The connector is fixedly connected to the connecting cylinder. The mounting hole is collinear with the axis of the outer shell so that the quick-release connector and the connecting connector can be plugged in and unplugged.

7. The quick-release connector according to claim 1, characterized in that, The crown spring is made of any one of leaded brass, lead-free brass, high copper, phosphor bronze, or beryllium bronze.

8. The quick-release connector according to claim 1, characterized in that, The connector is made of any one of leaded brass, lead-free brass, high copper, phosphor bronze, and beryllium bronze, and the connecting cylinder of the connecting assembly is made of any one of polytetrafluoroethylene, perfluoroethylene-propylene copolymer, polyvinylidene fluoride, and polychlorotrifluoroethylene.

9. The quick-release connector according to claim 1, characterized in that, The outer casing is made of any one of leaded brass, lead-free brass, high copper, phosphor bronze, or beryllium bronze.

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