CN104485567B - Tool capable of identifying, plugging and unplugging miniature radio frequency coaxial connector - Google Patents

Abstract

The invention provides a tool capable of identifying and plugging a miniature radio frequency coaxial connector, which includes claw clips, identification pinholes, sliding sleeves, sheaths, coil springs and small and large nuts. The outer peripheral surface of the jaw clamp head is a positive trapezoidal annular boss, and the inner peripheral surface is provided with an inverted trapezoidal annular clamp ring. There are four or more symmetrical expansion joints along the axis. The outer peripheral surface of the tail is provided with a section of outer There is a hollow channel in the clamp body, and a identification pinhole is placed in the channel, and the tail also has a section of the same external thread. There is a sliding sleeve outside the clamp body, a coil spring is arranged outside the clamp body inside the sliding sleeve, and a spring is set inside the outer sliding sleeve. The sheath is sequentially fastened with small and large nuts along the external thread at the tail of the identification pinhole and the external thread at the tail of the claw clamp. When the sliding sleeve compresses and relaxes the coil spring, the claw clips will automatically open and close, which can respectively identify and clamp the two ends of the half-locked and unlocked micro adapters, push the sliding sleeve forward, and then pull the large nut to achieve Insertion and extraction functions. The invention has simple structure and reliable use.

Description

A tool capable of identifying plugging and unplugging miniature radio frequency coaxial connectors

technical field

The invention relates to a tool for identifying and plugging a miniature radio frequency coaxial connector, in particular to an indispensable identifying and plugging tool for a micro radio frequency coaxial connector that can be slightly misplugged. The invention belongs to the large-scale integration of the electronic industry The technical field of assembly of miniature electronic connectors used in the system.

Background technique

The RF coaxial connector is an electromechanical component specially used to connect various ports for transmitting radio electromagnetic waves (between the radio transmitting antenna and the transmitting module, between the modules inside the communication base station, and the input and output ports of each terminal, etc.).

As the transmission power of radio communication base station antennas becomes larger and larger, the RF coaxial connectors connecting each port are also larger and larger. Conversely, with the increasing degree of large-scale integration of the electronics industry, the transmission connections between modules are getting denser, and the space gaps between PCB boards are getting smaller and smaller. The connections between densely packed PCBs, layers It is obviously not suitable to use the traditional cable connection welding technology for the connection between the stacked modules. Between the PCB boards, between the modules, a pair of connector seats are installed correspondingly at each port, and then the adapters are used to plug in between the pairs of connector seats, which gives people a reminder Such a new idea of design.

For traditional RF coaxial connectors, the coaxiality between the plug and the socket is relatively high, and the pins are not allowed to deflect and bend after being inserted into the jack. When it is necessary to install multiple sets of connector pairs on the same PCB, since each pair of connectors must be plugged coaxially, this requires that the center distance of the mounting holes corresponding to each pair of connectors must be very accurate, thereby increasing The manufacturing accuracy of the corresponding mounting hole center distance between the PCB boards and the difficulty of installing the connector are determined. Recently, a new series of miniature RF coaxial connectors that can be slightly misaligned and can be automatically deflected have come out.

The inventor also applied for a Chinese patent of "a radio frequency coaxial connector that can be inserted slightly offset" (200910028031.7). The plug, socket and adapter are very small, and it is difficult or impossible to use fingers or nails to correct Perform plugging and unplugging. In addition, one end of the miniature adapter has a half-lock function, which is called a half-lock end, and the other end does not have a half-lock function, which is called an unlocked end. It is difficult for people to identify and distinguish their different structures with eyes at a glance, and the two ends are never allowed to be inserted wrongly when plugging. For this reason, I specially designed a special plug-in tool, which can quickly and accurately identify the half-locked and unlocked ends of the micro-adapter, and can implement the connection between the micro-adapter and the PCB ingeniously and reliably. Plugging and unplugging of sockets.

Contents of the invention

The technical problem to be solved by the present invention is to provide a special identifying and plugging tool for micro-RF coaxial connectors, which can quickly and accurately identify and distinguish the different structures of the semi-locked and unlocked ends of the micro-adapter, and The plugging and unplugging of the micro-adapter and the PCB socket can be implemented ingeniously and reliably.

In order to solve the problems of the technologies described above, the technical solution of the present invention is:

A tool for identifying and plugging in and out of miniature radio frequency coaxial connectors, including claw clips, identification pinholes, sliding sleeves, sheaths, coil springs, small nuts and large nuts, the claw clip is a long and thin hollow tube , the outer peripheral surface of the jaw clamp head is a positive trapezoidal annular boss, the inner peripheral surface is provided with an inverted trapezoidal annular clamp ring, the front half of the head is opened with four or more symmetrical expansion joints along the axis, the outer peripheral surface of the tail A section of external thread is provided, and a hollow channel is formed in the clamp body; a recognition pinhole is arranged in the hollow channel, and the recognition pinhole is a slender cylindrical step bar, and the outer peripheral surface of the head of the recognition pinhole is a cylinder, A cylindrical cavity is provided along the axis of the cylinder. The middle section and the tail section of the identification pinhole are respectively provided with a cylindrical step A and a cylindrical step B with the same outer diameter. The same external thread at the tail of the claw clip; a sliding sleeve and a sheath are respectively provided at the front middle and tail of the claw clip body, and the sliding sleeve is a head sleeve with a thin head and a thick tail sleeve with a tail And the middle part is provided with a stepped sleeve composed of a knurled disc; the sheath is a helical spring sheath; the helical spring is set on the claw clip, and is placed between the tail sleeve, the sheath and the claw clip In the space; the small nut and the large nut with knurling are fastened together along the external thread at the end of the identification pinhole and the external thread at the end of the claw clip in turn; the claw clip is made of elastic material, and the sliding sleeve is compressed , When the coil spring is loosened, the claw clip will automatically open and close.

The inner tapered surface on the outside of the annular clamp ring of the claw clamp head is consistent with the outer tapered surface of the positive trapezoidal annular boss in the middle section of the outer conductor outer surface of the plugged micro adapter; The inner tapered surface of the inner side of the annular clamping ring coincides with the outer tapered cut surface of the large ring-shaped flange at both ends of the outer peripheral surface of the drawn miniature adapter.

The outer diameter of the cylinder at the head of the identification pinhole is greater than the diameter at the entrance of the ball socket of the insulator at the half-lock end of the micro-adapter, but smaller than the bottom diameter at the bottom of the tapered hole of the insulator at the non-lock end; the cylinder at the head of the identification pinhole The aperture of the shaped cavity is greater than the outer diameter of the small flanges at both ends of the inner conductor of the miniature adapter, and the hole depth is greater than the distance from the top of the small flange at the unlocked end of the inner conductor to the bottom of the tapered hole of the insulator at the unlocked end; the identification pinhole The outer diameters of the cylindrical step A and the cylindrical step B are the same, and both are smaller than the inner diameter of the hollow channel of the claw clamp.

The inner diameter of the head sleeve of the sliding sleeve is larger than the outer diameter of the claw clamp tube body, and smaller than the maximum outer diameter of the annular boss at the head of the claw clamp; the inner diameter of the tail sleeve of the sliding sleeve is larger than the outer diameter of the sheath .

The inner diameter of the sheath is larger than the outer diameter of the coil spring, and the outer diameter is smaller than the inner diameter of the sleeve at the end of the sliding sleeve; the outer peripheral surface of the head of the sheath is provided with a chamfer, and the center of the bottom has a tube body larger than the claw clip Outer diameter bottom hole.

Both the small nut and the large nut are inner nuts knurled on the outer peripheral surface, and the inner diameter of the tail sleeve of the sliding sleeve is larger than the knurled outer diameter of the small nut but smaller than the knurled outer diameter of the large nut.

With the above-mentioned tool for plugging and unplugging the micro-RF coaxial connector, if the sliding sleeve is pulled back, the coil spring is compressed, and the ring-shaped boss of the elastic claw head protrudes from the head of the sliding sleeve The sleeve is slightly open, and it is installed on the head of the identification pinhole in the hollow channel of the claw clip. The bottom of the tapered hole of the terminal insulator can clearly identify and distinguish the half-locked end and the unlocked end of the micro-adapter from the depth at which the head of the identification pinhole can be inserted at the two ends. When the claw clip clamps the neck between the ring-shaped boss in the middle of the outer peripheral surface of the unlocked end of the miniature adapter and the ring-shaped large flange of the end, then push the knurled disc in the middle of the sliding sleeve forward, Then the head sleeve of the sliding sleeve moves more and more tightly on the positive trapezoidal annular boss of the claw chuck head, and the compressed coil spring also stretches accordingly, and always keeps the head sleeve of the sliding sleeve against the jaw chuck. Constrained by the annular boss on the outer peripheral surface, the annular clamp ring on the inner peripheral surface of the claw clamp head will also be blocked by the positive trapezoidal annular boss in the middle section of the outer peripheral surface of the micro-adapter outer conductor, and the micro-transfer The adapter clamps tightly so that the half-lock end of the micro-adapter can be inserted into a mating receptacle. Conversely, if you grab the big nut and pull it back, the annular clamp ring on the inner peripheral surface of the clamp head can tightly clamp the large flange on the outer peripheral surface of the non-locking end of the outer conductor of the miniature adapter. The adapter is pulled out from the matching socket, which is the special plugging tool of the present invention.

The advantages of the present invention are: the tool is an indispensable special plug-in tool for micro-RF coaxial connectors, it can quickly, easily and accurately identify and distinguish the different structures of the half-lock and unlocked ends of the micro-RF adapter, It can also ingeniously, flexibly and reliably implement the plugging and unplugging of the micro-RF adapter and the PCB socket. It can be widely used in the field of micro-electronic connector assembly technology in large-scale integrated systems in the electronics industry, such as: MMSX (MMBX ), SMP, SSMP and other miniature RF coaxial connector series assembly technology.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is an enlarged view of part I in Fig. 1 .

Fig. 3 is an enlarged view of part II in Fig. 1 .

Fig. 4 is a schematic diagram of decompression and opening of the claw clamp head of the present invention.

Fig. 5 is a schematic diagram of identification of the half-lock end of the micro-adapter of the present invention.

Fig. 6 is an enlarged view of part III in Fig. 5 .

Fig. 7 is a schematic diagram of identifying the unlocked end of the micro-adapter of the present invention.

Fig. 8 is an enlarged view of part IV in Fig. 7 .

Fig. 9 is a schematic diagram of inserting the micro adapter into the socket according to the present invention.

Fig. 10 is a schematic diagram of pulling out the micro adapter from the socket according to the present invention.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1, 2, 3, 4, 9, and 10, in order to solve the above-mentioned technical problems, a special tool for identifying plugging and unplugging miniature radio frequency coaxial connectors of the present invention includes claw clips 1, identification pinholes 2 , Sliding sleeve 3, sheath 4, coil spring 5, small nut 6 and large nut 7. The claw clip 1 is a slender hollow tube, the outer peripheral surface of the head of the claw clip 1 is a positive trapezoidal annular boss 11, and the inner peripheral surface of the claw clip 1 head is provided with an inverted trapezoidal annular clamp ring 12. The cross-section of the annular clamp ring 12 is trapezoidal. There are four or more symmetrical expansion joints 13 on the front half of the head along the axis, and a section of external thread 14 is provided on the outer peripheral surface of the tail. A hollow channel 15, the head of the claw clip 1 made of elastic material is slightly open under normal conditions. The identification pin hole 2 is installed in the hollow channel 15 of the claw clip 1 . The identification pinhole 2 is a more slender cylindrical stepped rod, the outer peripheral surface of its head is a cylinder 21, and a cylindrical cavity 22 is arranged in the axis of the cylinder 21, and the outer surface of the cylinder 21 is The diameter is greater than the caliber 123 of the ball socket entrance of the half-lock end insulator of the identified miniature adapter, but smaller than the bottom diameter of the bottom 122 of the tapered hole of the non-lock end insulator. The diameter of the cylindrical cavity 22 is larger than that of the miniature adapter. The outer diameter of the small flange 132 at both ends of the inner conductor, the hole depth of the cylindrical cavity 22 is greater than the distance from the top of the small flange 132 of the inner conductor at the unlocked end to the bottom 122 of the tapered hole of the insulator at the end, identifying the pinhole 2 There is a cylindrical step A23 in the middle section, and a cylindrical step B24 in the tail section, and has the same external thread 25 as the tail of the claw clip 1. The outer diameters of the cylindrical step A23 and the cylindrical step B24 are equal, and they are slightly smaller than the hollow channel 15 of the claw clip 1. inner diameter. The sliding sleeve 3 and the sheath 4 are respectively arranged at the front middle part and the tail part outside the clip body of the claw clip 1 . The sliding sleeve 3 is a step sleeve with a thin head and a thick tail, which is composed of a head sleeve 31, a tail sleeve 32 and a knurled disc 33 in the middle, and the outer peripheral surface of the head is provided with end face chamfering The tapered surface 34, the inner diameter 35 of its head sleeve 31 is slightly larger than the outer diameter 16 of the claw clip 1 pipe body, and slightly smaller than the maximum outer diameter 17 of the claw clip 1 head annular boss 11, and its tail sleeve 32 The inner diameter 36 is slightly larger than the outer diameter 41 of the sheath 4 . Described sheath 4 is the sheath of helical spring 5, and one end is open, and one end is with the bottom, and the outer peripheral surface of opening end has a chamfer 43, and the center of belt chassis is provided with a bottom hole 44 slightly larger than the outer diameter 16 of claw clip 1 tube body, The inner diameter 42 of the sheath 4 is slightly larger than the outer diameter 51 of the coil spring 5, the outer diameter 41 of the sheath 4 is slightly smaller than the inner diameter 36 of the tail sleeve 32 of the sliding sleeve 3, and can slide in the tail sleeve 32 of the sliding sleeve 3 . The sliding sleeve 3 and the sheath 4 are sequentially sheathed on the body of the claw clamp 1 . The coil spring 5 is sleeved on the claw clip 1 and placed in the space between the tail sleeve 32 , the sheath 4 and the claw clip 1 . The small nut 6 and the large nut 7 with knurling are fastened together sequentially along the external thread 25 at the tail of the identification pinhole 2 and the external thread 14 at the tail of the claw clip 1 . Here it is the structural composition of the present invention.

As shown in Figures 4, 5, 6, 7, and 8, the present invention identifies the half-locked end and the unlocked end of the plugged-in miniature adapter in this way. Clamp the knurled disc 33 in the middle section of the sliding sleeve 3 with the index finger and middle finger, hold the big nut 7 with the thumb, and then compress each other, the tail sleeve 32 of the sliding sleeve 3 slides backward along the sheath 4, and the sliding sleeve 3 The head sleeve 31 also slides backward along the claw clip 1. At this time, the head ring-shaped boss 11 of the claw clip 1 made of elastic material just stretches out from the head sleeve 31 of the sliding sleeve 3 and forms a Slightly open shape, the opening diameter is slightly larger than the outer diameter of the ring-shaped boss 113 in the middle of the outer peripheral surface of the micro-adapter to be identified, and the head of the identification pinhole 2 is also revealed, because the identification pinhole 2 head The structural feature of the head, that is, the outer diameter of the head cylinder 21 is greater than the caliber of the entrance 123 of the insulator ball socket at the half-lock end insulator of the micro-adapter to be identified, and smaller than the bottom diameter of the bottom 122 of the tapered hole of the insulator at the non-lock end of the micro-adapter. , so when the identification pinhole 2 is respectively inserted into the half-lock end and the unlocked end of the micro-adapter, obviously, the head of the identification pinhole 2 is blocked by the entrance 123 of the insulator ball socket at the half-lock end, But they can be inserted into the bottom 122 of the tapered hole of the unlocked end insulator, and their inserted depths are respectively Δ1 and Δ2, where Δ1<<Δ2. This distinguishes at a glance the semi-locked and unlocked ends of the micro-adapter.

As shown in Figures 3, 9, and 10, for the miniature adapters that identify and distinguish the half-lock end and the unlocked end, the present invention implements plugging and unplugging in this way. Hold the big nut 7 with your thumb, clamp the knurled disc 33 in the middle section of the sliding sleeve 3 with your index finger and middle finger, and then compress it backward, and the ring-shaped boss 11 of the head of the claw clip 1 will protrude from the head of the sliding sleeve 3 The sleeve 31 is slightly opened, and the ring-shaped clamp ring 12 on the inner peripheral surface of the head of the opened claw clip 1 is placed on the middle ring-shaped boss 113 on the outer peripheral surface of the outer conductor of the unlocked end of the micro adapter to be inserted and removed. At the neck between the large ring-shaped flanges 112 of the ends, at this moment, loosen the index finger and middle finger to release the compressed coil spring 5, and the released spring force will push the inner circumference of the sleeve 31 of the sliding sleeve 3 head Surface 35 constrains the annular boss 11 on the outer peripheral surface of the claw clip 1 head, and then produces the ring-shaped clamp ring 12 on the inner peripheral surface of the claw clip 1 head on the neck of the outer conductor outer peripheral surface of the unlocked end of the miniature adapter. Constraints at the top, the constraints are more and more clamped as the sleeve 31 at the head of the sliding sleeve 3 pushes the annular boss 11 at the head of the claw clip 1. In addition, it is inverted from the inner peripheral surface of the head of the claw clip 1. The trapezoidal annular boss 113 in the middle section of the outer conductor outer surface of the miniature adapter matched with the trapezoidal annular clamp ring 12 is an insurmountable barrier. Therefore, as long as you pinch the knurled disc 33 in the middle section of the sliding sleeve 3 with your fingers, it will move forward. Push and push, which can reliably insert the other end of the micro-adapter that needs to be plugged, that is, the end of the half-lock end, into the socket that is soldered on the PCB board; The above-mentioned micro-adapter outer conductor outer peripheral surface end ring-shaped large flange 112 matched with the inverted trapezoidal annular clamp ring 12 on the internal peripheral surface of the part is also an insurmountable barrier. Therefore, as long as the large nut 7 is pinched with fingers and pulled outwards , which can reliably pull out the micro-adapter that needs to be plugged and unplugged from the half-locked socket.

To sum up, a tool of the present invention that can identify and pull out the miniature RF coaxial connector is an indispensable special tool in the installation production line of the miniature RF coaxial connector. It can quickly, easily and accurately identify And distinguish the different structures of the semi-locked and unlocked ends of the micro-RF adapter, and can implement the plugging and unplugging of the micro-RF adapter and the PCB socket ingeniously, flexibly and reliably. Since it is a special tool, its identification and plug-in functions will be continuously improved and updated along with the development and changes of the structural characteristics of the micro-RF adapter terminal.

The present invention is not limited by this embodiment, and technical solutions obtained by adopting equivalent replacements are all within the protection scope of the present invention.

Claims (6)

1. A tool for identifying pluggable miniature radio frequency coaxial connectors, characterized in that it includes claw clips (1), identification pinholes (2), sliding sleeves (3), sheaths (4), helical springs ( 5), the small nut (6) and the large nut (7), the claw clip (1) is a slender hollow tube, and the outer peripheral surface of the claw clip (1) head is a positive trapezoidal annular boss (11 ), the inner peripheral surface is provided with an inverted trapezoidal annular clamp ring (12), the front half of the head is evenly provided with a plurality of symmetrical expansion joints (13) along the axis, and a section of external thread (14) is provided on the outer peripheral surface of the tail. Inside the body is a hollow channel (15); an identification pinhole (2) is arranged in the hollow channel (15), and the identification pinhole (2) is a slender cylindrical step bar, and the head of the identification pinhole (2) The outer peripheral surface of the cylinder is a cylinder (21), and the outer diameter of the cylinder (21) is greater than the caliber of the entrance (123) of the insulator ball socket at the half-lock end insulator of the miniature adapter to be identified, but smaller than the cone of the insulator at the non-lock end. The bottom diameter of the shaped hole bottom (122); along the axis of the cylinder, a cylindrical cavity (22) is provided, and the middle section and the tail section of the identification pinhole (2) are respectively provided with cylindrical steps A with equal outer diameters (23), cylindrical step B (24), the tail of the identification pinhole (2) is provided with a section of external thread (25) that is the same as the tail of the claw clip (1); in the front middle of the claw clip (1) clip body and tail, respectively provided with a sliding sleeve (3) and a sheath (4), the sliding sleeve (3) is a thin head sleeve (31) by the head, a thick tail sleeve (32) and The middle part is provided with a stepped sleeve composed of knurled discs (33); the sheath (4) is the sheath of the coil spring (5); the coil spring (5) is sleeved on the claw clip (1), placed In the space between the tail sleeve (32), the sheath (4) and the claw clip (1); the small nut (6) and the large nut (7) with knurling, sequentially along the identification pinhole (2) The external thread (25) at the tail and the external thread (14) at the tail of the claw clip (1) are fastened together; the claw clip (1) is made of elastic material, and the sliding sleeve (3) compresses and loosens the spiral When the spring (5) is activated, the claw folder (1) will automatically open and close. 2. A kind of tool that can identify plugging and unplugging miniature radio frequency coaxial connectors as claimed in claim 1, is characterized in that, the inner tapered surface on the outside of the annular clamp ring (12) of the head of the claw clip (1) and the The outer tapered surface of the positive trapezoidal annular boss (113) in the middle section of the outer peripheral surface of the plugged micro adapter matches; The surface coincides with the outer tapered cut surface of the ring-shaped large flange (132) at the two ends of the outer peripheral surface of the drawn miniature adapter outer conductor. 3. A kind of tool that can identify pluggable miniature radio frequency coaxial connectors as claimed in claim 1 or 2, is characterized in that, the aperture of the cylindrical cavity (22) of described identifying pinhole (2) head is larger than The outer diameter of the small flanges (132) at both ends of the inner conductor of the miniature adapter, and the hole depth is greater than the distance from the top of the small flange (132) at the unlocked end of the inner conductor to the bottom (122) of the tapered hole of the insulator at the unlocked end; The outer diameters of the cylindrical step A (23) and the cylindrical step B (24) of the identification pinhole (2) are the same, and both are smaller than the inner diameter of the hollow channel (15) of the claw clip (1). 4. A kind of tool that can identify pluggable miniature radio frequency coaxial connector as claimed in claim 1 or 2, is characterized in that, the internal diameter (35) of the head sleeve (31) of described sliding sleeve (3) is greater than The outer diameter (16) of the tube body of the claw clip (1) is smaller than the maximum outer diameter (17) of the annular boss (11) at the head of the claw clip (1); the tail sleeve (32) of the sliding sleeve (3) ) has an inner diameter (36) greater than the outer diameter (41) of the sheath (4). 5. A tool for recognizably plugging and unplugging a miniature radio frequency coaxial connector as claimed in claim 1 or 2, wherein the inner diameter (42) of the sheath (4) is greater than the outer diameter of the coil spring (5) (51), the outer diameter (41) is less than the inner diameter (36) of the tail sleeve (32) of the sliding sleeve (3); the outer peripheral surface of the head of the sheath (4) is provided with a chamfer (43), and its bottom There is a bottom hole (44) greater than the tube body outer diameter (16) of the claw folder (1) in the center. 6. A tool for recognizable plugging and unplugging miniature radio frequency coaxial connectors as claimed in claim 1 or 2, characterized in that, the small nut (6) and the large nut (7) are both internally knurled on the outer peripheral surface nut, the inner diameter (36) of the tail sleeve (32) of the sliding sleeve (3) is larger than the knurled outer diameter of the small nut (6), and smaller than the knurled outer diameter of the large nut (7).