CN209511461U - Installation for common-frequency simulcasting railway wireless communication is fixed as one formula trunking - Google Patents

Abstract

It is fixed as one formula trunking the utility model discloses a kind of installation for common-frequency simulcasting railway wireless communication, including trunking, the trunking includes cabinet, the top of the cabinet is equipped with column, and the four sides of cabinet is equipped with support frame, and column is equipped with antenna holder, antenna holder includes first sleeve and second sleeve, the bottom of column is equipped with pedestal, and pedestal and column are connected, and pedestal is connected by the top of screw and cabinet；Column inner hollow, and it is equipped with fixed mechanism, fixed mechanism includes drag-line, first pulley and second pulley；Support frame includes support rod, and the upper end of support rod and cabinet are hinged；Installation formula trunking that is fixed as one for common-frequency simulcasting railway wireless communication is easy to carry, carries out dual fixation using drag-line and support frame, has excellent stability, can be applied not only to that plane is fixedly mounted, and is equally applicable to vehicle-mounted, is worth promoting.

Description

Installation for common-frequency simulcasting railway wireless communication is fixed as one formula trunking

Technical field

The utility model relates to railway wireless digital communication system fields, especially a kind of to be used for common-frequency simulcasting railway wireless The installation of communication is fixed as one formula trunking.

Background technique

In railway transportation production and construction, carries out the technology of various information transmission and processing using various communication modes and set It is standby.Railway communication is attached most importance to transport production, and major function is to realize the United Dispatching and finger of driving and rolling stock operation It waves.But because rail track disperses, branch fork is various, type of business diversification, and the difficulty for forming Unified Communication is larger.For commander's operation In train, it is necessary to wireless communication, therefore railway communication must be it is wired and wireless combine, using communication.

Trunking in railway wireless digital communication system is important intermediate networking equipment, relaying in the prior art Equipment is mostly stationary structure, and partial movement formula trunking, structure is simple, is easy to topple in use process.

Utility model content

The utility model is intended to provide a kind of installation for common-frequency simulcasting railway wireless communication for being not easy to topple over and fixes one Body formula trunking.

To achieve the above object, the utility model provides the following technical solutions: for common-frequency simulcasting railway wireless communication Be fixed as one formula trunking, including trunking are installed, the trunking includes cabinet, and the top of the cabinet is equipped with vertical Column, the four sides of cabinet are equipped with support frame, and column is equipped with antenna holder, and antenna holder includes first sleeve and second sleeve, The bottom of column is equipped with pedestal, and pedestal and column are connected, and pedestal is connected by the top of screw and cabinet；Column inner hollow, And it is equipped with fixed mechanism, fixed mechanism includes drag-line, first pulley and second pulley, there are four first pulley is set, is with column Uniformly annular array distribution, one end of four drag-lines connect pull ring at center, and the other end protrudes into after bypassing four first pulleys respectively In column, positioning disk is equipped with inside the column on the inside of first pulley, the center of positioning disk is equipped with the pilot hole through positioning disk；It is vertical The inner lower of column is equipped with second pulley, is provided with rope hole, the column of the top of rope hole on the column in the outside of second pulley It is equipped with wiring column；The top of column is cased with first sleeve, and the lower part of first sleeve is fixed by screws column, first set The middle part of cylinder outwardly protrudes composition ring-shaped platform, second sleeve is cased in first sleeve, second sleeve is located at the top of ring-shaped platform Portion, the top of second sleeve are equipped with strap, are fixed by screws at the top of strap and first sleeve, fixing clamp Plate equally covers on column；Support frame includes support rod, and the upper end of support rod and cabinet are hinged, and lower end is bolted interior Bar, the U-shaped profile of support rod, the side of opening is towards cabinet, and interior bar is in support rod, position of the support rod close to lower end Screw hole is installed, interior bar is equipped with a screw hole close to the position of lower end, and the top of interior bar is equipped with another screw hole, interior bar insertion branch The screw hole cooperation of the screw hole and support rod of lower end when strut, bolt-through screw hole fixes the two, when interior bar stretches out support rod on The screw hole at end and the screw hole of support rod cooperate, and bolt-through screw hole fixes the two.

Further scheme as the utility model: stiffener plate is equipped between the pedestal and column.

Further scheme as the utility model: being equipped with chamber door before the cabinet, chamber door is equipped with door lock.

Further scheme as the utility model: the top surface of the second sleeve is covered with rubber pad.

Further scheme as the utility model: the first sleeve and strap with column clearance fit, Two sleeves and first sleeve clearance fit.

Further scheme as the utility model: the side of the second sleeve is equipped with antenna mounting seat, antenna peace Seat is filled equipped with the jack for installing antenna.

Further scheme as the utility model: the first pulley passes through bearing with second pulley and connects shaft, The shaft of first pulley is fixed on axle bed, which is connected column, and the rotary shaft rack of second pulley is connected column.

The working principle introduction of the utility model: the pedestal of column is fixed on cabinet first after carrying in place, so Drag-line is taken off again from wiring column afterwards, four drag-lines are pulled by pull ring, then pull ring is fixed on mounting plane, it is fixed Four drag-lines are pulled from one end of wiring column again after the completion, four drag-lines is tightened, then drag-line is fixed on wiring column again, To effectively ensure that column keeps vertical stabilization stationary state for a long time during actual use, day is further enhanced The High Altitude Stability of line end, such support robust structure is safely, conveniently easily contained and installs；Support rod rotates outward, then The screw between interior bar and support rod is twisted off, interior bar is stretched out, and is screwed, then will be rotated again again in support rod makes Bar contact supporting surface can be supported cabinet.First sleeve is first covered on column and is consolidated by screw when installing by antenna It is fixed, second sleeve is then put on again, then puts on strap again, and strap is fixed on by first sleeve by screw Second sleeve is fixedly clamped by top；And in second sleeve mounted antennas, when need to adjust antenna towards when only need to dismantle Strap rotates second sleeve, fixes strap after adjustment again.

Compared with prior art, the utility model has the beneficial effects that this is used for the peace of common-frequency simulcasting railway wireless communication It is easy to carry to fill the formula trunking that is fixed as one, carries out dual fixation using drag-line and support frame, there is excellent stability, no It can only be suitable for that plane is fixedly mounted, be equally applicable to vehicle-mounted, be worth promoting.

Detailed description of the invention

Fig. 1 is the schematic diagram of internal structure of the utility model in embodiment one；

Fig. 2 is the positive structure schematic of the utility model in embodiment one；

Fig. 3 is the structural schematic diagram of the column of the utility model in embodiment one；

Fig. 4 is the structural schematic diagram after the support frame expansion of the utility model in embodiment one；

Fig. 5 is the schematic perspective view of the utility model；

Fig. 6 is the use state diagram of the utility model.

Wherein: 1 cabinet, 2 columns, 3 support frames, 4 first sleeves, 5 second sleeves, 6 pedestals, 7 drag-lines, 8 first pulleys, 9 Second pulley, 10 positioning disks, 11 wiring columns, 12 ring-shaped platforms, 13 straps, 14 support rods, 15 interior bars, the control of 21 carrier frequency Device, 22 transceiver modules, 23 power modules, 24 power amplifier modules, 25 duplexers.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-6, in the utility model embodiment, the installation for common-frequency simulcasting railway wireless communication is fixed as one Formula trunking, including trunking, the trunking include cabinet 1, and the top of the cabinet 1 is equipped with column 2, cabinet 1 Four sides be equipped with support frame 3, column 2 is equipped with antenna holder, and antenna holder includes first sleeve 4 and second sleeve 5, column 2 bottom is equipped with pedestal 6, and pedestal 6 and column 2 are connected, and pedestal 6 is connect by screw with the top of cabinet 1；

2 inner hollow of column, and it is equipped with fixed mechanism, fixed mechanism includes drag-line 7, first pulley 8 and second pulley 9, There are four first pulley 8 is set, uniformly annular array distribution, one end connection pull ring of four drag-lines 7 are another centered on column 2 End around protruding into column 2 after four first pulleys 8, is equipped with positioning disk 10 inside the column 2 of 8 inside of first pulley, leads respectively The pilot hole through positioning disk 10 is equipped with to the center of disk 10；The inner lower of column 2 is equipped with second pulley 9, second pulley 9 Rope hole is provided on the column 2 in outside, the column 2 of the top of rope hole is equipped with wiring column 11；Four drag-lines 7 enter column 2 Second pulley 9 is bypassed after the pilot hole at 10 center of positioning disk afterwards, is then pierced by and is fastened in wiring column from rope hole again On 11.It is necessary, it is provided on the column 2 of the inside of first pulley 8 into cord hole.

The top of column 2 is cased with first sleeve 4, and the lower part of first sleeve 4 is fixed by screws column 2, first set The middle part of cylinder 4, which outwardly protrudes, constitutes ring-shaped platform 12, is cased with second sleeve 5 in first sleeve 4, second sleeve 5 is located at annular flat The top of platform 12, the top of second sleeve 5 are equipped with strap 13, and strap 13 and the top of first sleeve 4 pass through screw It is fixedly connected, strap 13 equally covers on column 2；

Support frame 3 includes support rod 14, and the upper end of support rod 14 and cabinet 1 are hinged, and interior bar 15 is bolted in lower end, The U-shaped profile of support rod 14, the side of opening is towards cabinet 1, and interior bar 15 is in support rod 14, and support rod 14 is under The position at end is equipped with screw hole, and interior bar 15 is equipped with a screw hole close to the position of lower end, and the top of interior bar 15 is equipped with another screw hole, The screw hole of the screw hole and support rod 14 of lower end cooperates when interior bar 15 is inserted into support rod 14, and bolt-through screw hole fixes the two, interior The screw hole of the screw hole and support rod 14 of upper end cooperates when bar 15 stretches out support rod 14, and bolt-through screw hole fixes the two.

It is above-mentioned, stiffener plate is equipped between pedestal 6 and column 2.

It is above-mentioned, carrier frequency controller 21, transceiver module 22, power module 23, power amplifier module 24 and duplex are equipped with inside cabinet 1 Device 25, wherein duplexer 25 connects antenna by feeder line, can also (above controller and module are existing in interior design battery There are technology, dependency structure and mutual connection identical as existing mobile trunking, therefore not to repeat here).

It is above-mentioned, chamber door is equipped with before cabinet 1, chamber door is equipped with door lock.

Above-mentioned, the top surface of second sleeve 5 is covered with rubber pad, can be improved between second sleeve 5 and strap 13 Frictional force.

It is above-mentioned, first sleeve 4 and strap 13 with 2 clearance fit of column, second sleeve 5 and 4 gap of first sleeve Cooperation.The internal diameter of second sleeve 5 is less than the outer diameter of ring-shaped platform 12, guarantees that ring-shaped platform 12 can prop up second sleeve 5 Support.

Above-mentioned, the side of second sleeve 5 is equipped with antenna mounting seat, which is equipped with for installing inserting for antenna Hole (antenna is directional aerial, in order to preferably receive signal).Necessary, the top of cabinet 1 is equipped with for connecting antenna feed The interface of line, the interface connect the duplexer inside cabinet 1.

Above-mentioned, first pulley 8 connects shaft by bearing with second pulley 9, and the shaft of first pulley 8 is fixed on axle bed On, which is connected column 2, and the rotary shaft rack of second pulley 9 is connected column 2.

Above-mentioned, articulated structure between support rod 14 and cabinet 1 is shaft, the both ends of the shaft connection shaft seat, and axle bed is connected Cabinet 1, support rod 14 are equipped with the through-hole with shaft clearance fit.

The design feature and its working principle of the utility model: the pedestal 6 of column 2 is fixed on first after carrying in place On cabinet 1, then drag-line 7 is taken off again from wiring column 11, four drag-lines 7 are pulled by pull ring, are then fixed on pull ring On mounting plane (by screw, the various modes such as ground nail are fixed), four are pulled from one end of wiring column 11 again after the completion of fixed Drag-line 7 tightens four drag-lines 7, then drag-line 7 is fixed on wiring column 11 again；

Support rod 14 rotates outward, and then twists off the screw between interior bar 15 and support rod 14, and interior bar 15 is stretched out, and leads to It crosses screw to fix, then will rotate support rod 14 again again be supported the contact supporting surface of interior bar 15 can to cabinet 1, due to branch Strut 14 is U-shaped structure, therefore when 15 lower end stress of interior bar, since leverage can agitate upper end, however upper end is propped up The obstruction of strut 14 can not move, to keep the relative stability of interior bar 15 Yu support rod 14.

First 4 sets of first sleeve on column 2 and are screwed when antenna is installed, then puts on second sleeve 5 again, Then strap 13 is put on again, and strap 13 is fixed on to the top of first sleeve 4 by screw, by second sleeve 5 It is fixedly clamped；And in 5 mounted antennas of second sleeve, when need to adjust antenna towards when only need to dismantle strap 13 and rotate Second sleeve 5 fixes strap 13 again after adjustment.

The trunking is applied in common-frequency simulcasting railway wireless digital communication system, and common-frequency simulcasting railway wireless number is logical Letter system is made of station equipment, trunking, dispatch control equipment, portable integration apparatus and DMR mobile terminal form.Vehicle Station equipment complete machine uses the full Modular Structure Design of U, while constituting integration cabinet, heat dissipation by modules are ingenious Effect is good, appearance is highly specialized, maintenance maintenance is easy；Trunking uses all aluminium alloy technique, firm in structure, and shielding is tight It is close；IP waterproof and dustproof, aseismatic design can be directly mounted at open air；Machine volume is small, and integrated level is high, flexible for installation, cost performance Height, construction maintenance cost are low；Complete machine hardware is shared, and digital-to-analogue double-standard automatically switches, and provides pro digital, simulation common-frequency simulcasting function Energy；GLTE module can be matched as link access way；Dispatch control apparatus figure interchanger uses embedded hard exchange, does not have Industrial personal computer, server of computer type etc. participate in any key technology position work, dead without computer general-purpose operating system Machine failure is not influenced by network arbitrary form virus, and total system is driven by the low layer softwares such as single-chip microcontroller, embedded, stability It can be very high.Digital local exchange installation strengthens Stability Design to the greatest extent: entire tandem switching system network is whole whether great or small To disperse switching fabric, without the logical possibility of switching node paralysis, the operation of the raising wired network system of amplitude peak Stability.Portable integration apparatus uses all aluminium alloy technique, firm in structure, and integrated level is high, machine volume is small, light-weight, takes Band is convenient.IP grade waterproof and dustproof, aseismatic design.Portable integration apparatus is combined with DMR hand-held station, it can be achieved that ad hoc network exists Communication blind district quickly establishes covering, and complete machine is simple to operate, and especially suitable railway emergency rescue is speedily carried out rescue work the supplement of communication field Covering.

GPS/ tranmitting frequency simultaneous techniques can be used in common-frequency simulcasting railway wireless digital communication system:

The carrier frequency stability of each base station transmitter is higher than Hz, and common transmitter does not all accomplish this point.If hair The CF signal for penetrating machine arrival overlapping coverage areas is unstable, and intercom, which receives signal, will appear following several possibility: A, acutely Noise, B, beat frequency phenomenon will appear voice phenomenon off and on when serious.So system must control skill using carrier frequency synchronization Art.

Common-frequency simulcasting configures a GPS receiver using each same base station of broadcasting, and is locked and is emitted using GPS reference time signal Unit frequency.Transmitter tranmitting frequency is synchronous between guaranteeing each base station.

Phase synchronization technology can be used in common-frequency simulcasting railway wireless digital communication system:

Since audio is transmitted to the distance difference or link form difference of each base station, the audio ginseng of overlapping coverage areas is reached Number: phase, delay, amplitude will appear inconsistent.Three state modulators are bad, it may appear that voice mistake, lose word, breaking of voice, Phenomena such as audio distortion is big.So must be very strictly controlled three audio frequency parameters, perfect condition is so that reaching overlapping coverage areas Waveform is substantially overlapping.

System controlling terminal can use each base station GPS data remotely accurate adjusting parameter.Guarantee the audio letter of overlay region Number falling phase error.

Common-frequency simulcasting railway wireless digital communication system can be used reception and sentence selecting technology technology:

When system works, multiple receivers often will receive same intercom audio signal, if these signals of leaving are complete Portion forwards, it may appear that multiple audio superposition phenomenons, this will lead to, and the audio background noise that intercom receives is big, distortion is big. Sentence so system must increase reception and select function.

Multiple base stations in the area of coverage, while receiving the signal of mobile station, base station controller according to reception signal matter Amount optimizes differentiation automatically.Each base station transmitter is sent to by link again to emit.Guarantee the speech that another party's mobile station receives It is clearly.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. The formula trunking 1. the installation for common-frequency simulcasting railway wireless communication is fixed as one, including trunking, feature exist In the trunking includes cabinet, and the top of the cabinet is equipped with column, and the four sides of cabinet is equipped with support frame, on column Equipped with antenna holder, antenna holder includes first sleeve and second sleeve, and the bottom of column is equipped with pedestal, and pedestal and column are solid Even, pedestal is connected by the top of screw and cabinet；Column inner hollow, and be equipped with fixed mechanism, fixed mechanism include drag-line, First pulley and second pulley, there are four first pulley is set, the uniform annular array distribution centered on column, the one of four drag-lines End connection pull ring, the other end are protruded into column after bypassing four first pulleys respectively, are equipped with inside the column on the inside of first pulley Positioning disk, the center of positioning disk are equipped with the pilot hole through positioning disk；The inner lower of column is equipped with second pulley, second pulley Outside column on be provided with rope hole, the column of the top of rope hole is equipped with wiring column；The top of column is cased with first set Cylinder, the lower part of first sleeve is fixed by screws column, outwardly protrudes composition ring-shaped platform in the middle part of first sleeve, and first Second sleeve is cased on sleeve, second sleeve is located at the top of ring-shaped platform, and the top of second sleeve is equipped with strap, fixed It is fixed by screws at the top of clamping plate and first sleeve, strap equally covers on column；Support frame includes support rod, The upper end of support rod and cabinet are hinged, and interior bar, the U-shaped profile of support rod, the side court of opening is bolted in lower end To cabinet, for interior bar in support rod, support rod is equipped with screw hole close to the position of lower end, and interior bar is equipped with one close to the position of lower end A screw hole, the top of interior bar are equipped with another screw hole, and the screw hole of the screw hole and support rod of lower end cooperates when interior bar is inserted into support rod, Bolt-through screw hole fixes the two, and the screw hole of the screw hole and support rod of upper end cooperates when interior bar stretches out support rod, bolt-through Screw hole fixes the two.
2. The formula trunking 2. the installation according to claim 1 for common-frequency simulcasting railway wireless communication is fixed as one, It is characterized in that, stiffener plate is equipped between the pedestal and column.
3. The formula trunking 3. the installation according to claim 1 for common-frequency simulcasting railway wireless communication is fixed as one, It is characterized in that, chamber door is equipped with before the cabinet, and chamber door is equipped with door lock.
4. The formula trunking 4. the installation according to claim 1 for common-frequency simulcasting railway wireless communication is fixed as one, It is characterized in that, the top surface of the second sleeve is covered with rubber pad.
5. The formula trunking 5. the installation according to claim 1 for common-frequency simulcasting railway wireless communication is fixed as one, Be characterized in that, the first sleeve and strap with column clearance fit, second sleeve and first sleeve clearance fit.
6. The formula trunking 6. the installation according to claim 1 for common-frequency simulcasting railway wireless communication is fixed as one, It is characterized in that, the side of the second sleeve is equipped with antenna mounting seat, which is equipped with for installing inserting for antenna Hole.
7. The formula trunking 7. the installation according to claim 1 for common-frequency simulcasting railway wireless communication is fixed as one, It being characterized in that, the first pulley passes through bearing with second pulley and connects shaft, and the shaft of first pulley is fixed on axle bed, The axle bed is connected column, and the rotary shaft rack of second pulley is connected column.