CN108923787B - Line switching equipment - Google Patents

Abstract

The invention discloses a line switching device, and belongs to the technical field of communication. The circuit switching equipment comprises n first waveband switches, m second waveband switches and a plurality of switching circuits; each first band switch comprises at least m movable knife groups, and each second band switch comprises at least n movable knife groups; the fixed knife group is movably connected with a plurality of movable knife groups through a linkage mechanism, and the fixed knife group is connected with one movable knife group at a time; when the fixed knife group is connected with the movable knife group, the kth fixed knife in the fixed knife group is connected with the kth movable knife in the connected movable knife group; the fixed knife of the ith first band switch in the n first band switches is connected with the ith first equipment in the n first equipment, and the fixed knife of the jth second band switch in the m second band switches is connected with the jth second equipment in the m second equipment; the jth group of movable knives of the ith first band switch is connected with the ith group of movable knives of the jth second band switch through a switching line.

Description

Line switching equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a line switching device.

Background

At present, a ship communication system is developed into a complex system for realizing information interaction with communication command, comprehensive network management and wireless communication sub-networks by means of a path provided by a comprehensive information transmission network. The information interaction by using the information transmission network is suitable for a large-scale ship communication system, and in some small-scale ship communication systems, such as a system comprising 7 or 8 devices, if the information transmission network is used for information interaction, the information interaction is complex and extremely impractical.

Disclosure of Invention

The embodiment of the invention provides a line switching device which can solve the problem that a small-scale ship communication system is complex and impractical when information interaction is carried out by adopting an information transmission network. The technical scheme is as follows:

the invention provides a line switching device which is suitable for one-to-one communication between n first devices and m second devices, wherein the line switching device comprises n first waveband switches, m second waveband switches and a plurality of switching lines;

each first band switch and each second band switch comprise switch bodies, fixed knife groups, a plurality of movable knife groups and linkage mechanisms, wherein the fixed knife groups, the movable knife groups and the linkage mechanisms are arranged on the switch bodies; the number of the fixed knives in the fixed knife group is the same as that of the movable knives in each movable knife group, and the number of the fixed knives is equal to that of exchange lines required by communication between the first equipment and the second equipment; the fixed cutter set is movably connected with the plurality of movable cutter sets through the linkage mechanism, and the fixed cutter set is connected with one movable cutter set at a time; when the fixed knife group is connected with the movable knife group, the kth fixed knife in the fixed knife group is connected with the kth movable knife in the connected movable knife group, k is a positive integer, and k is less than or equal to the number of the fixed knives;

the fixed blade of the ith first band switch in the n first band switches is connected with the ith first device in the n first devices, and the fixed blade of the jth second band switch in the m second band switches is connected with the jth second device in the m second devices; the jth group of movable knives of the ith first band switch is connected with the ith group of movable knives of the jth second band switch through the exchange line; n is more than or equal to 2, and m is more than or equal to 2; i. j is a positive integer, n is more than or equal to i and more than or equal to 2, m is more than or equal to j and more than or equal to 2,

the first wave band switch and the second wave band switch both further comprise knobs, the knobs are fixedly connected with the linkage mechanisms, when the knobs rotate, the fixed knife tackle is movably connected with the movable knife tackle, the knobs comprise a plurality of gears, the gears are positions of the knobs on rotating tracks, and when the knobs rotate to different gears, the fixed knife tackle is connected with different movable knife tackle; the knob of the first band switch comprises m said gear positions, the knob of the second band switch comprises n said gear positions,

the link gear includes pole and a plurality of conducting strip, in same wave band switch, the pole is rotatable to be fixed in the switch body, the knob install in the one end of pole, a plurality of conducting strips install in the other end of pole, the quantity of conducting strip with the quantity of stationary knife is the same, and k is individual stationary knife and k conducting strip swing joint, be equipped with on the conducting strip and touch the claw, every kth in the activity knife tackle the activity sword sets up at k is individual on the motion trail of touching the claw of conducting strip, work as when the knob is rotatory to different gears, kth the claw and the difference of touching of conducting strip the activity sword is connected.

Optionally, the circuit switching device further comprises a panel;

the panel is provided with n first mounting holes and m second mounting holes,

the knob of the second band switch is exposed out of the second mounting hole; the knob of the tth second band switch is exposed out of the tth second mounting hole, s and t are positive integers, n is larger than or equal to s and larger than or equal to 2, and m is larger than or equal to t and larger than or equal to 2.

Optionally, the ith is that the panel area below the first mounting hole is equipped with the ith the sign of first equipment, and every the panel area of first mounting hole top is equipped with every the sign of second equipment, jth the panel area of second mounting hole below is equipped with jth the sign of second equipment, and every the panel area of second mounting hole top is equipped with every the sign of first equipment, the sign of the second equipment that the panel area of first mounting hole top set up with the gear one-to-one of the knob in the first mounting hole sets up, the sign of the first equipment that the panel area of second mounting hole top set up with the gear one-to-one of the knob in the second mounting hole sets up.

Optionally, the circuit switching device further includes a socket, the socket includes a socket body and a plurality of probes disposed on the socket body, each of the probes is connected to each of the fixed blades, and each of the fixed blades connected to the probe is different, and the first device and the second device are respectively connected to the fixed blades through the socket.

Optionally, the circuit switching device comprises 4 of the first band switches and 4 of the second band switches;

the first waveband switch and the second waveband switch comprise 4 movable knife groups, and the number of the fixed knives in the fixed knife groups, the number of the movable knives in each movable knife group and the number of the ith exchange lines required by communication between the first equipment and the jth second equipment are all 10.

Optionally, the knobs of the 4 first band switches and the knobs of the 4 second band switches are arranged in two rows on the panel, one row being the knobs of the first band switches and the other row being the knobs of the second band switches.

Optionally, the 10 exchange lines between the ith one of the 4 first devices and the jth one of the 4 second devices include:

the system comprises 2 lines for transmitting balanced radio frequency signals, 2 lines for transmitting balanced sound frequency signals, 1 line for transmitting push-to-talk signals, 1 line for transmitting ready line numbers, 1 line for transmitting encrypted signals, 1 line for transmitting decryption signals, 1 ground line and 1 spare line.

Optionally, the circuit switching device comprises 5 of the first band switches and 5 of the second band switches; the first band switch and the second band switch comprise 5 movable knife groups, and the number of the fixed knives in the fixed knife groups, the number of the movable knives in each movable knife group and the number of the exchange lines required by communication between the ith first equipment and the jth second equipment are all 16.

Optionally, the first device includes a voice terminal, a digital newspaper terminal, and a data link terminal;

the second equipment comprises a short-wave transceiver, a short-wave radio station, a sea radio station, a high-frequency telephone and an air radio station.

The technical scheme provided by the embodiment of the invention has the following beneficial effects: the circuit switching equipment only comprises a plurality of band switches and a switching circuit, the whole equipment does not need a power supply, the structure is simple, the reliability is high, the cost is low, the operation and the use are convenient, the circuit switching equipment can be widely applied to small-scale communication systems, such as local application of large-scale communication systems, is particularly suitable for some emergency occasions, and has strong practicability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a line switching device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a knob and faceplate provided by an embodiment of the present invention;

FIG. 3 is a schematic diagram of a receptacle provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a multi-layer band switch provided by an embodiment of the present invention;

fig. 5a to 5j are schematic connection diagrams of 10 switching lines when the circuit switching device performs one-to-one communication between the first device and the second device according to the embodiment of the present invention;

fig. 6 is a schematic diagram of a connection between a socket and a band switch according to an embodiment of the present invention.

In the drawings, the reference numerals of the respective components are as follows:

1 first band switch, 2 second band switch, 3 exchange lines, 11 stationary knife, 11a contact, 12 movable knife, 4 knobs, 5 panels, 6 sockets, 61 socket bodies, 62 probes, 13 ring bases, 14 rods, 15 conducting strips, 15a contact claws, 8a first equipment, 8b second equipment, the identification of 8a1 first equipment, the identification of 8b1 second equipment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a line switching device provided in an embodiment of the present invention, which is suitable for one-to-one communication between n first devices 8a and m second devices 8 b. Referring to fig. 1, the circuit switching device comprises n first band switches 1, m second band switches 2 and a number of switching lines 3.

Each of the first band switches 1 and each of the second band switches 2 includes a switch body (not shown in fig. 1), and a fixed blade set, a plurality of movable blade sets, and a link mechanism (not shown in fig. 1) provided in the switch body. Each first band switch 1 comprises at least m active blade sets and each second band switch 2 comprises at least n active blade sets. The number of the fixed knives 11 in the fixed knife groups is the same as the number of the movable knives 12 in each movable knife group. The number of stationary blades 11 is equal to the number of exchange lines 3 required for communication between the first device 8a and the second device 8 b.

The fixed knife group is movably connected with a plurality of movable knife groups through a linkage mechanism, and the fixed knife group is connected with one movable knife group at a time. When the fixed knife group is connected with the movable knife group, the kth fixed knife 11 in the fixed knife group is connected with the kth movable knife 12 in the connected movable knife group, k is a positive integer, and k is smaller than or equal to the number of the fixed knives.

The fixed blade 11 of the ith first band switch 1 of the n first band switches 1 is connected with the ith first device 8a of the n first devices 8a, and the fixed blade 11 of the jth second band switch 2 of the m second band switches 2 is connected with the jth second device 8b of the m second devices 8 b. The jth group of movable blades 12 of the ith first band switch 1 is connected with the ith group of movable blades 11 of the jth second band switch 2 through the exchange line 3. n is more than or equal to 2, and m is more than or equal to 2. i. j is a positive integer, n is more than or equal to i and more than or equal to 2, and m is more than or equal to j and more than or equal to 2.

In the present embodiment, the one-to-one communication may mean that 1 first device 8a can communicate with only 1 second device 8b at the same time, and likewise, 1 second device 8b can communicate with only 1 first device 8a at the same time.

The first device 8a is connected to the line switching device via the fixed blade set of the first band switch 1, and the second device 8b is connected to the line switching device via the fixed blade set of the second band switch 2. Each first band switch 1 is provided with a number of movable groups of blades equal to the number of second devices 8 b. In this way, each movable knife group of the first band switch 1 is correspondingly connected with one second device 8b, and the second devices 8b correspondingly connected with each movable knife group are different. Likewise, each second band switch 2 is provided with the same number of active groups as the first devices 8 a. In this way, each movable knife group of the second band switch 2 is correspondingly connected with one first device 8a, and the first devices 8a correspondingly connected with each movable knife group are different.

And connecting the movable knife 12 of each first waveband switch 1 with the movable knife 12 of each second waveband switch 2 through a switching line according to the corresponding relation between each movable knife group and the equipment. It is assumed that the first devices 8a-W are connected to the line switching device via the fixed sets of blades of the first band switches 1-W and that the second devices 8b-Z are connected to the line switching device via the fixed sets of blades of the second band switches 1-Z. Because the fixed knife group of each band switch is connected with one movable knife group at a time. When the fixed knife set of the first band switch 1-W is connected with the movable knife set corresponding to the second device 8b-Z and the fixed knife set of the second band switch 1-Z is connected with the movable knife set corresponding to the first device 8a-W, a communication line between the first device 8a-W and the second device 8b-Z is successfully established. At this point, the first device 8a-W and the second device 8b-Z may communicate.

The circuit switching equipment only comprises a plurality of band switches and a switching circuit, the whole equipment does not need a power supply, the structure is simple, the reliability is high, the cost is low, the operation and the use are convenient, the circuit switching equipment can be widely applied to small-scale communication systems, such as local application of large-scale communication systems, is particularly suitable for some emergency occasions, and has strong practicability.

Alternatively, the first device may be a terminal device (also called a user terminal) including a voice terminal, a digital newspaper terminal and a data link terminal.

The second device may be a channel device including a short wave transceiver, a short wave radio station, a sea-to-sea radio station, a high frequency telephone, and an air radio station.

Based on the current development condition of the band switch, preferably 10 is larger than or equal to n, and 10 is larger than or equal to m.

Preferably, referring to fig. 2, each of the first band switch 8a and the second band switch 8b may further include a knob 4, and the knob 4 is fixedly connected to the linkage mechanism; when the knob 4 rotates, the fixed knife group is movably connected with the movable knife groups. The knob 4 comprises a plurality of gears, the gears are positions of the knob 4 on a rotating track, and when the knob 4 rotates to different gears, the fixed cutter set is connected with different movable cutter sets; the knob 4 of the first band switch comprises m gear positions and the knob 4 of the second band switch comprises n gear positions.

Wherein, the knob 4 realizes the conversion of different gears through the gear conversion mechanism. It can be understood that in the band switch, the number of the shift positions of the band switch is the same as the number of the movable knife groups of the band switch.

Preferably, referring to fig. 2, the circuit switching device further comprises a panel 5. The panel 5 is provided with n first mounting holes and m second mounting holes. The knob 4 of the s-th first band switch is exposed out of the s-th first mounting hole; the knob 4 of the tth second waveband switch is exposed out of the tth second mounting hole, s and t are positive integers, n is larger than or equal to s and larger than or equal to 2, and m is larger than or equal to t and larger than or equal to 2.

Preferably, the panel area below the ith first mounting hole is provided with the identifier 8a1 of the ith first device 8a, the panel area above each first mounting hole is provided with the identifier 8b1 of each second device 8b, the panel area below the jth second mounting hole is provided with the identifier 8b1 of the jth second device 8b, the panel area above each second mounting hole is provided with the identifier 8a1 of each first device 8a, the identifiers 8b1 of the second devices 8b arranged in the panel area above the first mounting hole are arranged in one-to-one correspondence with the gears of the knobs 4 in the first mounting hole, and the identifiers 8a1 of the first devices 8a arranged in the panel area above the second mounting hole are arranged in one-to-one correspondence with the gears of the knobs 4 in the second mounting hole.

Specifically, the mark 8a1 of each first device 8a disposed in the panel area above the second mounting hole is disposed in one-to-one correspondence with the gear position of the knob 4 of the second band switch 2, and the mark 8b1 of each second device 8b disposed in the panel area above the first mounting hole is disposed in one-to-one correspondence with the gear position of the knob 4 of the first band switch 1.

Referring to fig. 3, the circuit switching device further includes a receptacle 6. The socket 6 comprises a socket body 61 and a plurality of probes 62 arranged on the socket body 61, each probe 62 is connected with each fixed knife 11, the fixed knife 11 connected with each probe 62 is different, and the first device 8a and the second device 8b are respectively connected with the fixed knife 11 through the socket 6. The probe 62 may be connected to the stationary blade 11 by a wire.

In particular, the first device 8a is connected to the fixed blade 11 of the corresponding first band switch 1 through the socket 6, and the second device 8b is connected to the fixed blade 11 of the corresponding second band switch 2 through the socket 6.

The equipment is connected into the circuit switching equipment through the socket 6, when the number of the fixed knives 11 is large, the complicated operation that the equipment is connected with the fixed knives 11 one by one is avoided, and the equipment and the circuit switching equipment are easy to connect and detach. In addition, if the connection problem of the equipment and the circuit switching equipment occurs, the maintenance is convenient.

Alternatively, referring to fig. 4, the linkage mechanism comprises a rod 14 and a number of conducting strips 15. The rod 14 is rotatably fixed to the switch body, the knob 4 is installed at one end of the rod 14, and the plurality of conductive plates 15 are installed at the other end of the rod 14. The number of the conductive pieces 15 is the same as that of the stationary blades 11. The kth fixed knife 11 is movably connected with the kth conducting strip 15, a contact claw is arranged on the conducting strip 15, the kth movable knife 12 in each movable knife group is arranged on a motion track of the contact claw of the kth conducting strip 15, when the knob 4 rotates to different gears, the contact claw of the kth conducting strip 15 is connected with different movable knives 12, k is a positive integer, and k is smaller than or equal to the number of the fixed knives.

The structure of the link mechanism is merely an example, and the present embodiment does not limit the structure of the link mechanism, and any other structure of the link mechanism may be employed.

Optionally, the band switch is a multi-layer band switch. Preferably, the multilayer waveband switch can adopt a KX03C series.

The band switch is generally named by the number of gears (gears are also called bands) and the number of fixed blades, for example, 4 gears are represented by 4W, 10 fixed blades are represented by 10D, and a band switch with 4 gears and 10 fixed blades can be represented by 4W10D band switch. It is easy to know that the 4W10D wave band switch comprises 10 conductive sheets 15 and 4 movable knife groups. Each of the 4 movable blade groups includes 10 movable blades 12 for a total of 40 movable blades 12.

The structure of the multilayer band switch will be described below by taking a 4W10D multilayer band switch as an example.

The switch body of the 4W10D multilayer wave band switch is of a 5-layer structure, and each layer is provided with 2 conducting strips 15, 2 fixed knives 11 and 8 movable knives 12.

Set up a ring base 13 of fixing on the switch body in each layer, 2 stationary knives 11 and 8 movable knives 12 all install on ring base 13. Specifically, the length directions of the fixed blade 11 and the movable blade 12 may overlap with the radius of the circular ring base 13. Wherein, the length direction of 2 stationary knives 11 is on the same diameter of ring base 13. That is, 2 stationary knives 11 divide the circular ring base 13 into two semicircles, and each semicircle is respectively provided with 4 movable knives 12 and 1 stationary knife. One end of the stationary blade 11 extends with a contact 11 a.

The conductive plate 15 may be a semicircular conductive plate. One conductive plate 15 is provided corresponding to one of the semicircles, and the other conductive plate 15 is provided corresponding to the other semicircle. The 2 conductive plates 15 may be mounted on a conductive plate mounting base, which is sleeved on the rod 14. The lever 14 is rotatably fixed to the switch body. The conducting strip 15 is connected with the contact 11a of the fixed knife 11 on the corresponding semicircle, the contact claw 15a is arranged on the conducting strip 15, and the movable knife 12 on the semicircle is arranged on the motion track of the contact claw 15a of the corresponding conducting strip 15.

Specifically, when the knob 4 is rotated to drive the rod 14 to rotate (the rotation direction is shown by the arrow in the figure), the rod 14 will also drive the conductive sheet 15 to rotate through the conductive sheet mounting base. When the conducting strip 15 rotates, the contact 11a of the corresponding fixed blade 11 is continuously and movably connected with the conducting strip 15, and the contact claw 15a of the conducting strip 15 is connected with different movable blades 12 arranged on the corresponding motion trail.

Assuming that the layer next to the knob 4 is the 1 st layer (see fig. 4), the 2 stationary knives arranged in the 1 st layer are 1a0 and 1B0, respectively, and the 4 movable knives 1a1, 1a2, 1A3 and 1a4 are arranged corresponding to 1a 0; 4 movable knives 1B1, 1B2, 1B3 and 1B4 are arranged corresponding to 1B 0.

The 2 fixed knives arranged in layer 2 are 2a0 and 2B0 respectively, and the 4 movable knives 2a1, 2a2, 2A3 and 2a4 are arranged corresponding to 2a 0; 4 movable knives 2B1, 2B2, 2B3 and 2B4 are arranged corresponding to 2B 0.

The 2 fixed knives arranged in layer 3 are 3a0 and 3B0, respectively, and the 4 movable knives 3a1, 3a2, 3A3 and 3a4 are arranged corresponding to 3a 0; 4 movable knives 3B1, 3B2, 3B3 and 3B4 are arranged corresponding to 3B 0.

The 2 fixed knives arranged in layer 4 are 4a0 and 4B0, respectively, and the 4 movable knives 4a1, 4a2, 4A3 and 4a4 are arranged corresponding to 4a 0; 4 movable knives 4B1, 4B2, 4B3 and 4B4 are arranged corresponding to 4B 0.

The 2 fixed knives arranged in the 5 th layer are 5A0 and 5B0 respectively, and the 4 movable knives 5A1, 5A2, 5A3 and 5A4 are arranged corresponding to 5A 0; 4 movable knives 5B1, 5B2, 5B3 and 5B4 are arranged corresponding to 5B 0.

The multilayer waveband switch comprises a gear switching mechanism, and the knob 4 realizes the switching of different gears through the gear switching mechanism. The gear shifting mechanism comprises a fluted disc, a marble spring assembly and a stop pin. The rod 14 is sleeved with a fluted disc, and the number of tooth openings of the fluted disc is the same as that of gears. The marble spring assembly comprises a marble and a spring pressing plate. The marble is fixed in the one end of spring plate and is connected with the fluted disc contact, and the size of marble and the size phase-match of tooth mouth. The other end of the spring pressing plate is fixed on the switch body. One end of the stop pin is fixed on the switch body, and the other end of the stop pin extends out to be used for limiting the fluted disc when the fluted disc rotates to a specified position (such as the tail end of a gear). Specifically, drive pole 14 through manual rotatory knob 4 and rotate, pole 14 drives conducting strip 15 and fluted disc and rotates, and the circuit switching of different gears is realized in the rotation of conducting strip 15, and the rotation of fluted disc receives marble and spring plate's control, and the spring on the spring plate is located between clamp plate and the fluted disc and is compression state, and when the effort rotation of spring was overcome to the fluted disc, the tooth mouth will be gone into to the marble, at this moment, realize from the conversion of a gear to another gear, guarantee the accuracy of gear switching angle. The stop pin ensures that the gear does not exceed the gear number during gear shifting.

As a preferred first embodiment, the circuit switching device comprises 4 first band switches 1 and 4 second band switches 2, each of the first band switches 1 and the second band switches 2 comprising 4 movable blade sets. The number of the fixed blades 11 in the fixed blade group, the number of the movable blades 12 in each movable blade group, and the number of the exchange lines required for communication between the i-th first device 8a and the j-th second device 8b are all 10. The circuit switching device is adapted for one-to-one communication between 4 first devices 8a and 4 second devices 8 b.

Specifically, in the first embodiment, the first band switch 1 and the second band switch 2 are both 4W10D multilayer band switches. Preferably, the model of the 4W10D multi-layer band switch may be KX03C-4W 10D-Y20.

Preferably, the knobs 4 of the 4 first band switches 1 and the knobs 4 of the 4 second band switches 2 are arranged in two rows on the panel 5, one being the knob 4 of the first band switch 1 and the other being the knob 4 of the second band switch 2.

Preferably, the 10 exchange lines between the ith one of the 4 first devices 8a and the jth one of the 4 second devices 8b may include: the system comprises 2 lines for transmitting balanced radio frequency signals, 2 lines for transmitting balanced sound frequency signals, 1 line for transmitting Push-to-Talk (PTT) signals, 1 line for transmitting ready line numbers, 1 line for transmitting encrypted signals, 1 line for transmitting decryption signals, 1 ground line and 1 spare line.

The ready signal is a status signal sent by a pair of devices to be communicated accessing the circuit switching device to one or both sides after establishing a connection line between the devices, and the status signal is used for indicating that a signal sending party is in an available state. After the device receives the ready signal of the other party, the two devices start to communicate. For example, in a case where a pair of to-be-communicated devices are a station device (e.g., an idle station) and a terminal device (e.g., a voice terminal), respectively, after the station device is normally powered on, a ready signal is sent to the terminal device to indicate that the station device is in an available state. And after the terminal equipment receives the ready signal, the terminal equipment starts to communicate with the radio station equipment.

For example, in a communication room on a ship or a land communication station, there are 4 terminal devices (e.g., 2 voice terminals and 2 digital newspaper terminals) and 4 channel devices (e.g., 2 short wave broadcasting stations, 1 high frequency telephone and 1 air station) that need to implement one-to-one communication between the terminal devices and the channel devices.

At this time, the terminal device and the channel device are connected to the corresponding socket 6 of the circuit switching device, and the channel device and the terminal device selection knob on the panel 5 are used for bidirectional selection, so that one-to-one circuit switching connection between the corresponding terminal device and the corresponding channel device can be realized, and the circuit connection between one terminal device and a plurality of channel devices or between a plurality of terminal devices and one channel device is avoided.

Referring to fig. 5a to 5j, it is assumed that the band switches respectively connected to the 4 terminal devices are UK1, UK2, UK3 and UK4, and the band switches respectively connected to the 4 channel devices are CK1, CK2, CK3 and CK 4. The fixed knife of each wave band switch is sequentially 1A0, 1B0, 2A0, 2B0, 3A0, 3B0, 4A0, 4B0, 5A0 and 5B 0; the movable knife of each wave band switch sequentially comprises 1A 1-1A 4, 1B 1-1B 4, 2A 1-2A 4, 2B 1-2B 4, 3A 1-3A 4, 3B 1-3B 4, 4A 1-4A 4, 4B 1-4B 4, 5A 1-5A 4 and 5B 1-5B 4. The overall circuit-switched connections between band switches are shown in fig. 5a-5 j. Specifically, fig. 5a shows the connection manner of the 1 st line among the 10 lines between the movable blades of the band switches, fig. 5b shows the connection manner of the 2 nd line among the 10 lines between the movable blades of the band switches, and so on, and fig. 5j shows the connection manner of the 10 th line among the 10 lines between the movable blades of the band switches.

The terminal equipment and the channel equipment are connected to the respective band switches through the sockets 6 on the circuit switching equipment. Since 10 wires between the terminal equipment and the channel equipment are respectively connected to the fixed blades (1a0, 1B0, 2a0, 2B0, 3a0, 3B0, 4a0, 4B0, 5a0, 5B0) of the corresponding band switches through the sockets 6, the number of lines between each socket 6 and the respective connected band switch is also 10, and specifically the number of lines between the socket 6 and the fixed blades of the band switches is 10. The 10 wire connection between the socket 6 and the band switch is shown in figure 6. 10 lines between the socket 6 connected with the channel equipment 1 and the band switch CK1 are sequentially C1-1-C1-10, 10 lines between the socket 6 connected with the channel equipment 2 and the band switch CK2 are sequentially C2-1-C2-10, 10 lines between the socket 6 connected with the channel equipment 3 and the band switch CK3 are sequentially C3-1-C3-10, and 10 lines between the socket 6 connected with the channel equipment 4 and the band switch CK4 are sequentially C4-1-C4-10. The 10 lines between the socket 6 connected with the terminal equipment 1 and the band switch UK1 are sequentially U1-1-U1-10, the 10 lines between the socket 6 connected with the terminal equipment 2 and the band switch UK2 are sequentially U2-1-U2-10, the 10 lines between the socket 6 connected with the terminal equipment 3 and the band switch UK3 are sequentially U3-1-U3-10, and the 10 lines between the socket 6 connected with the terminal equipment 4 and the band switch UK4 are sequentially U4-1-U4-10.

As a preferred second embodiment, the circuit switching device comprises 5 first band switches 1 and 5 second band switches 2. The first band switch 1 and the second band switch 2 each comprise 5 movable knife groups. The number of the fixed blades 11 in the fixed blade group, the number of the movable blades 12 in each movable blade group, and the number of the exchange lines required for communication between the i-th first device 8a and the j-th second device 8b are all 16. The circuit switching device is adapted for one-to-one communication between 5 first devices 8a and 5 second devices 8 b.

Specifically, in the second embodiment, the first band switch 1 and the second band switch 2 are both 5W16D multilayer band switches.

In the second embodiment, similarly to the first embodiment, the knobs 4 of the 5 first band switches 1 and the knobs 4 of the 5 second band switches 2 are arranged in two rows on the panel 5, one row being the knob 4 of the first band switch 1 and the other row being the knob 4 of the second band switch 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A line switching device is suitable for one-to-one communication between n first devices and m second devices, and is characterized by comprising n first waveband switches, m second waveband switches and a plurality of switching lines;

each first band switch and each second band switch comprise switch bodies, fixed knife groups, a plurality of movable knife groups and linkage mechanisms, wherein the fixed knife groups, the movable knife groups and the linkage mechanisms are arranged on the switch bodies; the number of the fixed knives in the fixed knife group is the same as that of the movable knives in each movable knife group, and the number of the fixed knives is equal to that of exchange lines required by communication between the first equipment and the second equipment; the fixed cutter set is movably connected with the plurality of movable cutter sets through the linkage mechanism, and the fixed cutter set is connected with one movable cutter set at a time; when the fixed knife group is connected with the movable knife group, the kth fixed knife in the fixed knife group is connected with the kth movable knife in the connected movable knife group, k is a positive integer, and k is less than or equal to the number of the fixed knives;

the fixed blade of the ith first band switch in the n first band switches is connected with the ith first device in the n first devices, and the fixed blade of the jth second band switch in the m second band switches is connected with the jth second device in the m second devices; the jth group of movable knives of the ith first band switch is connected with the ith group of movable knives of the jth second band switch through the exchange line; n is more than or equal to 2, m is more than or equal to 2, i and j are positive integers, n is more than or equal to i and more than or equal to 2, m is more than or equal to j and more than or equal to 2,

the first wave band switch and the second wave band switch both further comprise knobs, the knobs are fixedly connected with the linkage mechanisms, when the knobs rotate, the fixed knife tackle is movably connected with the movable knife tackle, the knobs comprise a plurality of gears, the gears are positions of the knobs on rotating tracks, and when the knobs rotate to different gears, the fixed knife tackle is connected with different movable knife tackle; the knob of the first band switch comprises m said gear positions, the knob of the second band switch comprises n said gear positions,

the link gear includes pole and a plurality of conducting strip, in same wave band switch, the pole is rotatable to be fixed in the switch body, the knob install in the one end of pole, a plurality of conducting strips install in the other end of pole, the quantity of conducting strip with the quantity of stationary knife is the same, and k is individual stationary knife and k conducting strip swing joint, be equipped with on the conducting strip and touch the claw, every kth in the activity knife tackle the activity sword sets up at k is individual on the motion trail of touching the claw of conducting strip, work as when the knob is rotatory to different gears, kth the claw and the difference of touching of conducting strip the activity sword is connected.

2. The circuit switching device of claim 1, further comprising a faceplate;

the panel is provided with n first mounting holes and m second mounting holes,

the knob of the second band switch is exposed out of the second mounting hole; the knob of the tth second band switch is exposed out of the tth second mounting hole, s and t are positive integers, n is larger than or equal to s and larger than or equal to 2, and m is larger than or equal to t and larger than or equal to 2.

3. The circuit switching device according to claim 2, wherein a panel area below an ith first mounting hole is provided with an identifier of the ith first device, and a panel area above each first mounting hole is provided with an identifier of each second device, a panel area below a jth second mounting hole is provided with an identifier of the jth second device, and a panel area above each second mounting hole is provided with an identifier of each first device, the identifiers of the second devices arranged in the panel areas above the first mounting holes and the gears of the knobs in the first mounting holes are arranged in a one-to-one correspondence manner, and the identifiers of the first devices arranged in the panel areas above the second mounting holes and the gears of the knobs in the second mounting holes are arranged in a one-to-one correspondence manner.

4. The circuit switching device according to claim 1, further comprising a socket, wherein the socket includes a socket body and a plurality of probes disposed on the socket body, each probe is connected to each of the fixed blades, the fixed blade connected to each probe is different, and the first device and the second device are respectively connected to the fixed blades through the socket.

5. The circuit switching device of claim 2, wherein the circuit switching device comprises 4 of the first band switches and 4 of the second band switches;

the first waveband switch and the second waveband switch comprise 4 movable knife groups, and the number of the fixed knives in the fixed knife groups, the number of the movable knives in each movable knife group and the number of the ith exchange lines required by communication between the first equipment and the jth second equipment are all 10.

6. The circuit switching device of claim 5,

the knobs of the 4 first band switches and the knobs of the 4 second band switches are arranged in two rows on the panel, one row being the knob of the first band switch and the other row being the knob of the second band switch.

7. The circuit switching device of claim 5, wherein 10 switching lines between an ith one of the 4 first devices and a jth one of the 4 second devices comprise:

the system comprises 2 lines for transmitting balanced radio frequency signals, 2 lines for transmitting balanced sound frequency signals, 1 line for transmitting push-to-talk signals, 1 line for transmitting ready line numbers, 1 line for transmitting encrypted signals, 1 line for transmitting decryption signals, 1 ground line and 1 spare line.

8. The circuit switching device of any of claims 1 to 4, wherein the circuit switching device comprises 5 of the first band switches and 5 of the second band switches; the first band switch and the second band switch comprise 5 movable knife groups, and the number of the fixed knives in the fixed knife groups, the number of the movable knives in each movable knife group and the number of the exchange lines required by communication between the ith first equipment and the jth second equipment are all 16.

9. Circuit switching device according to any of claims 1 to 4,

the first equipment comprises a voice terminal, a digital newspaper terminal and a data link terminal;

the second equipment comprises a short-wave transceiver, a short-wave radio station, a sea radio station, a high-frequency telephone and an air radio station.

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