Threaded connection type radio frequency coaxial connector

Abstract

The utility model discloses a threaded connection type radio frequency coaxial connector, and belongs to the technical field of radio frequency coaxial connectors. A threaded connection type radio frequency coaxial connector comprises a male connector body and further comprises a female connector body, the female connector body is located at one end of the male connector body, a contact pin is arranged in the male connector body, a base is arranged at one end of the male connector body, one end of the contact pin is connected with the base, and the other end of the contact pin is connected with the female connector body. An inner lining plate is arranged outside the contact pins, and an outer lining plate is arranged outside the inner lining plate. In order to solve the problem that threaded connection is easy to loosen, so that connection between a male head and a female head is not firm, and signals are not stable, after a female connector body is inserted into a male connector body, a spring exerts rebounding force on the female connector body, and after the male connector body and the female connector body are in threaded connection, the rebounding force is exerted on the female connector body. And the pressing force and the friction force between the threads can be kept all the time, so that the loosening condition is not easy to occur, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency coaxial connectors, in particular to a threaded connection type radio frequency coaxial connector. Background Art

[0002] RF coaxial connectors are designed for attachment to cables or installation on instruments, electrically connecting or disconnecting transmission lines. These connectors are mechatronic and fundamentally different from low-frequency connectors. Their electrical properties are primarily guaranteed by their mechanical structure. They typically consist of an inner conductor, insulation material, an outer conductor (shield), and connectors. The inner conductor transmits the signal, while the insulation separates the inner and outer conductors. The outer conductor shields the internal structure from external interference and protects the external environment.

[0003] The male and female heads in the existing RF coaxial connectors mainly rely on threaded connections, which are prone to loosening, making the connection between the male and female heads unstable, resulting in unstable signals; therefore, it does not meet existing needs, and a threaded RF coaxial connector is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a threaded radio frequency coaxial connector, which is connected by a pin in a male connector body and a jack in a female connector body, and the fixing plate is located inside a guide groove, and the positioning block on the fixing plate squeezes the inner lining plate, and the inner lining plate squeezes the protective cover, and at the same time the protrusion is stuck inside the groove, so that after the male connector body and the female connector body are connected by threads, it is not easy to loosen, the stability is improved, and the problems in the prior art can be solved.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a threaded radio frequency coaxial connector, comprising a male connector body and a female connector body, the female connector body being located at one end of the male connector body, a pin being provided inside the male connector body, a base being provided at one end of the male connector body, one end of the pin being connected to the base, an inner lining plate being provided outside the pin, an outer lining plate being provided outside the inner lining plate, a connecting ring being provided outside the outer lining plate, a jack being provided inside the female connector body, an adapter being provided at one end of the female connector body, a bump and a limit plate being provided on the outer side of the female connector body, and a protective cover being provided between the jack and the limit plate.

[0006] Preferably, a fixing plate and a top ring are provided between the inner lining plate and the outer lining plate, and a plurality of springs are provided between the top ring and the base, one end of the spring is connected to the base, and the other end of the spring is connected to the side of the top ring.

[0007] Preferably, the inner lining plate and the outer lining plate are both connected to the base, the inner lining plate is a hollow cylindrical structure made of flexible rubber material, and the side of the outer lining plate is provided with a groove.

[0008] Preferably, a first threaded sleeve is provided inside the connecting ring, a second threaded sleeve is provided outside the limiting plate, the inner ring surface of the connecting ring is provided with threads, and the outer ring surface of the connecting ring is provided with anti-slip grooves.

[0009] Preferably, the jack is located inside the protective sleeve, one end of the protective sleeve is connected to the adapter, and the protective sleeve is a hollow cylindrical structure made of flexible rubber material.

[0010] Preferably, the positioning block is a metal iron sheet structure, one end of the fixed plate is connected to the base, and the other end of the fixed plate is provided with a positioning block, and several positioning blocks form a circle along the side of the lining plate.

[0011] Preferably, the groove is an L-shaped structure, and there are at least two grooves, which are symmetrically arranged on the outer lining plate.

[0012] Preferably, one end of the first threaded sleeve is connected to the base, and one end of the second threaded sleeve is connected to the adapter. The first threaded sleeve and the second threaded sleeve are both circular ring structures, and the outer ring surfaces of the first threaded sleeve and the second threaded sleeve are both provided with threads.

[0013] Preferably, a guide groove is provided between the protective cover and the limiting plate, and the guide groove is a trumpet-shaped structure with an open end larger than a closed end.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model inserts the female connector body into the interior of the male connector body. After the pin is completely located inside the socket, the fixing plate is located inside the guide groove, and the positioning block on the fixing plate enters the bottom of the guide groove. The positioning block squeezes the inner lining plate, and the inner lining plate squeezes the protective sleeve, so that a large friction force is generated between the inner lining plate and the protective sleeve, thereby preliminarily connecting the female connector body and the male connector body. Thereafter, the female connector body is rotated to clamp the protrusion inside the groove, and finally the connecting ring is rotated between the first threaded sleeve and the second threaded sleeve, so that the female connector body and the male connector body are connected for the second time. The two connection methods achieve double protection and improve the reliability of the connection.

[0016] 2. The utility model rotates the female connector body to clamp the protrusion inside the groove, and the top ring squeezes the entire female connector body through the spring, so that the protrusion can be firmly fixed inside the groove, reducing the situation where the protrusion slips out due to vibration. At the same time, the top ring gives the female connector body a rebound force through the spring, so that after the connecting ring and the female connector body are connected through the second threaded sleeve, the compression force and friction force between the connecting ring and the second threaded sleeve can be maintained, reducing the situation where the thread is loose, thereby improving the stability after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall front view of the utility model;

[0018] Figure 2 This is a schematic diagram of the local structure of the pin of the utility model;

[0019] Figure 3 This is a schematic diagram of the local structure of the fixed plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the partial structure of the first threaded sleeve of the utility model.

[0021] In the figure: 1. Male connector body; 101. Pin; 102. Base; 103. Outer lining plate; 1031. Groove; 104. Fixing plate; 1041. Positioning block; 105. Inner lining plate; 106. Top ring; 107. Spring; 2. Female connector body; 201. Adapter; 202. Socket; 203. Bump; 204. Protective cover; 205. Limiting plate; 2051. Guide groove; 3. Connecting ring; 301. First threaded sleeve; 302. Second threaded sleeve; 303. Anti-slip groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] To solve the problem that the threaded connection is prone to loosening, making the male and female connectors not firmly connected, resulting in unstable signals, please refer to Figure 1-4, the utility model provides an embodiment: a threaded radio frequency coaxial connector, comprising a male connector body 1, and also comprising a female connector body 2, the female connector body 2 is located at one end of the male connector body 1, a pin 101 is provided inside the male connector body 1, a base 102 is provided at one end of the male connector body 1, one end of the pin 101 is connected to the base 102, an inner lining plate 105 is provided outside the pin 101, an outer lining plate 103 is provided outside the inner lining plate 105, a connecting ring 3 is provided outside the outer lining plate 103, a socket 202 is provided inside the female connector body 2, an adapter 201 is provided at one end of the female connector body 2, a protrusion 203 and a limit plate 205 are provided on the outer side of the female connector body 2, and a protective cover 204 is provided between the socket 202 and the limit plate 205.

[0024] A fixing plate 104 and a top ring 106 are provided between the inner lining plate 105 and the outer lining plate 103, and several springs 107 are provided between the top ring 106 and the base 102. One end of the spring 107 is connected to the base 102, and the other end of the spring 107 is connected to the side of the top ring 106. The positioning block 1041 is a metal iron sheet structure. One end of the fixing plate 104 is connected to the base 102, and the other end of the fixing plate 104 is provided with a positioning block 1041. Several positioning blocks 1041 form a circle along the side of the inner lining plate 105; the inner lining plate 105 and the outer lining plate 103 are both connected to the base 102, the inner lining plate 105 is a hollow cylindrical structure made of flexible rubber material, and a groove 1031 is provided on the side of the outer lining plate 103. The groove 1031 is an L-shaped structure. There are at least two grooves 1031, and the two grooves 1031 are symmetrically arranged on the outer lining plate 103.

[0025] A first threaded sleeve 301 is provided inside the connecting ring 3, a second threaded sleeve 302 is provided outside the limiting plate 205, the inner ring surface of the connecting ring 3 is provided with threads, and the outer ring surface of the connecting ring 3 is provided with anti-slip grooves 303. One end of the first threaded sleeve 301 is connected to the base 102, and one end of the second threaded sleeve 302 is connected to the adapter 201. The first threaded sleeve 301 and the second threaded sleeve 302 are both circular ring structures, and the outer ring surfaces of the first threaded sleeve 301 and the second threaded sleeve 302 are both provided with threads.

[0026] The socket 202 is located inside the protective sleeve 204, one end of the protective sleeve 204 is connected to the adapter 201, the protective sleeve 204 is a hollow cylindrical structure made of flexible rubber material, a guide groove 2051 is provided between the protective sleeve 204 and the limiting plate 205, and the guide groove 2051 is a trumpet-shaped structure with an open end larger than a closed end.

[0027] After the female connector body 2 is inserted into the interior of the male connector body 1 and the pin 101 is completely located inside the socket 202, the fixing plate 104 is located inside the guide groove 2051, and the positioning block 1041 on the fixing plate 104 enters the bottom of the guide groove 2051. The positioning block 1041 squeezes the inner lining plate 105, and the inner lining plate 105 then squeezes the protective sleeve 204, so that a large friction force is generated between the inner lining plate 105 and the protective sleeve 204, thereby making the female connector body 2 and the male connector body 1 initially connected, and then the female connector body 2 is rotated to clamp the protrusion 203 inside the groove 1031, and finally the connecting ring is rotated 3 to between the first threaded sleeve 301 and the second threaded sleeve 302, so that the female connector body 2 and the male connector body 1 are connected for the second time. The two connection methods realize double protection and further improve the reliability of the connection.

[0028] After rotating the female connector body 2, the protrusion 203 is stuck in the groove 1031, and the top ring 106 squeezes the entire female connector body 2 through the spring 107, so that the protrusion 203 can be firmly fixed in the groove 1031, avoiding the situation where the protrusion 203 slides out due to vibration. At the same time, the top ring 106 gives the female connector body 2 a rebound force through the spring 107, so that after the connecting ring 3 and the female connector body 2 are connected through the second threaded sleeve 302, the compression force and friction force between the connecting ring 3 and the second threaded sleeve 302 can be maintained, reducing the loosening of the thread and further improving the stability of the female connector body 2 after being connected to the male connector body 1.

[0029] Working principle: Insert the female connector body 2 into the interior of the male connector body 1. After the pin 101 is completely located inside the socket 202, the fixing plate 104 is located inside the guide groove 2051, so that a large friction force is generated between the lining plate 105 and the protective cover 204, thereby making the female connector body 2 and the male connector body 1 initially connected. Then, rotate the female connector body 2 to clamp the protrusion 203 inside the groove 1031, and finally rotate the connecting ring 3 to between the first threaded sleeve 301 and the second threaded sleeve 302, so that the female connector body 2 and the male connector body 1 are connected for the second time. The combination of two different connection methods improves the reliability of the connection.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A threaded radio frequency coaxial connector, comprising a male connector body (1), characterized in that: The invention also includes a female connector body (2), wherein the female connector body (2) is located at one end of the male connector body (1), a pin (101) is provided inside the male connector body (1), a base (102) is provided at one end of the male connector body (1), one end of the pin (101) is connected to the base (102), an inner lining plate (105) is provided outside the pin (101), an outer lining plate (103) is provided outside the inner lining plate (105), a connecting ring (3) is provided outside the outer lining plate (103), a socket (202) is provided inside the female connector body (2), an adapter (201) is provided at one end of the female connector body (2), a protrusion (203) and a limit plate (205) are provided on the outer side of the female connector body (2), and a protective cover (204) is provided between the socket (202) and the limit plate (205).

2. The threaded radio frequency coaxial connector according to claim 1, wherein: A fixing plate (104) and a top ring (106) are provided between the inner lining plate (105) and the outer lining plate (103); a plurality of springs (107) are provided between the top ring (106) and the base (102); one end of the spring (107) is connected to the base (102), and the other end of the spring (107) is connected to the side of the top ring (106).

3. The threaded radio frequency coaxial connector according to claim 1, wherein: The inner lining plate (105) and the outer lining plate (103) are both connected to the base (102); the inner lining plate (105) is a hollow cylindrical structure made of flexible rubber material; and a groove (1031) is provided on the side of the outer lining plate (103).

4. The threaded radio frequency coaxial connector according to claim 1, wherein: The interior of the connecting ring (3) is provided with a first threaded sleeve (301), the exterior of the limiting plate (205) is provided with a second threaded sleeve (302), the inner ring surface of the connecting ring (3) is provided with threads, and the outer ring surface of the connecting ring (3) is provided with anti-slip grooves (303).

5. The threaded radio frequency coaxial connector according to claim 1, wherein: The jack (202) is located inside the protective sleeve (204), one end of the protective sleeve (204) is connected to the adapter (201), and the protective sleeve (204) is a hollow cylindrical structure made of flexible rubber material.

6. The threaded radio frequency coaxial connector according to claim 2, wherein: The positioning block (1041) is a metal iron sheet structure. One end of the fixed plate (104) is connected to the base (102). The other end of the fixed plate (104) is provided with a positioning block (1041). Several positioning blocks (1041) form a circle along the side of the inner lining plate (105).

7. The threaded radio frequency coaxial connector according to claim 3, wherein: The groove (1031) is an L-shaped structure, and at least two grooves (1031) are provided, and the two grooves (1031) are symmetrically arranged on the outer lining plate (103).

8. The threaded radio frequency coaxial connector according to claim 4, wherein: One end of the first threaded sleeve (301) is connected to the base (102), and one end of the second threaded sleeve (302) is connected to the adapter (201). The first threaded sleeve (301) and the second threaded sleeve (302) are both circular ring structures, and the outer ring surfaces of the first threaded sleeve (301) and the second threaded sleeve (302) are both provided with threads.

9. The threaded radio frequency coaxial connector according to claim 5, wherein: A guide groove (2051) is provided between the protective cover (204) and the limiting plate (205), and the guide groove (2051) is a trumpet-shaped structure with an open end larger than a closed end.

Images