CN2288561Y - Main distribution frame - Google Patents

Abstract

A kind of main frame, including frame body and safety wire connection row, feature is that the external cable Cheng Duan of line bank and wire jumper are arranged on the forefront same plane of front at end, can be carried out wire jumper card line, internal and external line open circuit and the open test to internal and external line so as not to extract Security Unit also; All attended operations do not influence the connecting and protection of All other routes; And Security Unit plug, alarm instruction is in front. Frame body is made of the special aluminum profile with T-slot, is gone out by rectangular or diamond shape bolt assembly and by wiring gang module bracket

Connector of the shape corner material through being bent to form is connected, to simplify structure, reduces costs, and facilitates operation.

Description

A kind of main frame

The utility model relates to continuing and safeguard in the local telephone communication circuit, relates more specifically to main frame (MDF) and safety wire connection row thereof.

Main frame is a kind of the continuing and safeguard in the local telephone communication circuit, one side connects the local telephone communication cable, opposite side connects exchange subscriber circuit, has the inside and outside line of connection, the circuit over-voltage over-current protection, fault warning and circuit function such as tested, main frame is made up of frame support body, safety wire connection row, test line bank, Security Unit, warning system, jointer etc.; Safety wire connection row is to connect external cable Cheng Duan and wire jumper, and the device of Security Unit can be installed.

The applicant is in nearest submission (priority date is on April 29th, 96), and the utility model application that is entitled as " Security Unit of main frame " is the application's a related application, and the utility model is to design for the novel Security Unit that cooperates this application.By this related application as can be known, the applicant also greatly facilitates Operation and Maintenance simultaneously from improving the protection q﹠r that Security Unit structure and circuit are started with and improved MDF greatly.Therefore need not speak more,, make indirect contribution for the described effect of this related application of realization naturally as the utility model safety wire connection row that this Security Unit is installed.To this, can consult this related application and this paper does not give unnecessary details.

Though the application designer takes a broad view of existing MDF product and realizes people and for the aspects such as reliability and convenient operating maintenance that continue the safety wire connection row architecture advances has been made all effort, attends to one thing and lose sight of another often, can not be entirely satisfactory.

For example, by domestic larger, the HPX44 of the manufacturer production that technical strength is stronger (JPX77) is though type plug-in main frame has solved the contradiction of above-mentioned two aspects preferably, overcome other existing products and do not carried out external cable Cheng Duan in the front, wire jumper Cheng Duan, Security Unit is installed, and test waits the shortcoming of operation, but still to illustrate below existing wait further improvements.Fig. 1 shows the schematic diagram of this safety wire connection row.Each label is represented among the figure: 101-Security Unit shell, the outlet of 111-external cable trough, 112-printed board jack, 113-ground wire contact pin and alarm signal contact pin jack, 114-external cable become the end assembly, the 115-wire jumper becomes the end assembly, the outlet of 116-wire jumper trough, 117-external cable trough inlet, 118-safety wire connection row mount pad, 119-becomes end module mounting bracket, 120-wire size sign board.Fig. 2 is the outline drawing with the supporting Security Unit of this safety wire connection row, wherein label is represented: the 102-double-clad board, 103-printed board and-track road surface that external cable Cheng Duan (a line) contacts, the track road surface that the 104-printed board contacts with another external cable Cheng Duan (b line); 105-ground connection contact pin, 106-alarm signal contact pin, the contact chip that 107-contacts with a wire jumper Cheng Duan (b '), the contact chip that 108-contacts with another wire jumper Cheng Duan (a '), the outside line of 109-printed board becomes end b line test point, and the outside line of 110-printed board becomes end a line test point.From Fig. 1 and Fig. 2 as can be seen, this Security Unit inserts safety wire connection row external cable by its printed board extension and becomes in the printed board jack on end assembly, finishes and the continuing of external cable; Finish ground connection and connect the alarm signal end by its ground connection contact pin that stretches out and alarm signal contact pin insertion ground wire contact pin jack, alarm signal contact pin jack simultaneously; And become termination contact and wire jumper to become contacting of wire jumper clamping reed on the end assembly to finish and the continuing of wire jumper by the wire jumper of its sidewall.

As shown in Figure 1, its external cable becomes the end terminal assemblies to become the end terminal assemblies to adopt laminated structure with wire jumper, wire jumper becomes the end assembly to be stacked on the outside line one-tenth end assembly, so after wire jumper one-tenth end terminal assemblies has been installed, external cable Cheng Duan is hidden fully, if need the outside line Cheng Duan of a pair of circuit is taken out stitches, during attended operations such as card line, need to remove whole ten pairs of wire jumpers on the wire jumper one-tenth end terminal assemblies, and to dismantle down wire jumper one-tenth end terminal assemblies and just can carry out, influenced the use that normally continues of nine pairs of circuits in addition like this, and after it inserts Security Unit, can only do on-line testing to internal and external line, and can not make the internal and external line open test under internal and external line open circuit operation and the internal and external line off-state; On safety wire connection row, disconnect internal and external line or make the open test of internal and external line as need, all must pull out Security Unit and can carry out; This on the other hand structure can only be divided into some assemblies when also making this product export, can not dispatch from the factory after the overall package, users such as need carry out external cable Cheng Duanhou could install wire jumper one-tenth end terminal assemblies, and this has increased installation workload to the user and has been difficult to control its (wire jumper becomes the end terminal assemblies) installation quality; In addition, this product is except that its Security Unit structural design is unreasonable, it is compact that the structural design of its safety wire connection row is also owed, the requirement that causes the height dimension of its safety wire connection row just to meet rower is 250mm, and this has restricted the size of Security Unit on the one hand, has promptly improved the improved physical dimension designing requirement of Security Unit, security personnel row module is high more on the other hand, just require the height of frame and machine room high more, thereby increase construction cost, also be not easy to operation.

Therefore, the purpose of this utility model is the above-mentioned defective that overcomes prior art, provides a kind of structure more compact, and cost significantly reduces, and more convenient operation also can be installed the main frame and the safety wire connection row thereof of novel Security Unit.

For reaching above-mentioned purpose, the utility model main frame comprises frame support body and safety wire connection row, described safety wire connection row comprises interpolation frame and the external cable and the wire jumper trough of grafting Security Unit, alarm sheet and ground strip mount pad, line bank module carrier and the positive external cable that fixedly installs become the end terminal to become the end terminal with wire jumper, it is characterized in that:

Described external cable becomes the end terminal to become the external cable on the end terminal assemblies to become the end terminal to become the end terminal to be arranged on the front forefront with wire jumper with wire jumper, and at grade, this assembly is towards front openings, and external cable becomes the end terminal to become to hold the distance between the terminal to be enough to insert described Security Unit with relative wire jumper, so that described Security Unit is all imbedded except that handle portion within the positive facial plane of this assembly; It is double-layer folding formula clamping reed that described external cable becomes the end terminal to become the end terminal with wire jumper, is installed in external cable and becomes the end terminal to become in the end terminal assemblies with wire jumper; The clamping reed of described line bank and the contacted contact point of Security Unit contact chip are exposed to the front of safety wire connection row; Described line bank module carrier promptly is the mounting bracket of each assembly, and ground strip is also by this support tandem ground connection; On the described line bank module carrier alarm signal line socket is installed, is used for connecting the alarm signal line of described line bank intermodule by plug; Described external cable cabling notch is arranged on described safety wire connection row left side, and wire jumper becomes end cabling notch to be arranged on the right side of described safety wire connection row; Described wire jumper and external cable trough are arranged on the upper and lower outer wall of described Security Unit interpolation frame and external cable and wire jumper trough; Described external cable becomes end terminal and wire jumper to become to hold will pack into the front forefront of described clamping reed wherein of the front forefront of terminal assemblies to hide fully; Each described clamping reed is two clips, and each bayonet socket has four edges of a knife; Two lateral walls of described Security Unit interpolation frame and external cable and wire jumper trough: upside is the wire jumper trough, downside is the external cable trough, described terminal assemblies comprises working of plastics and its interior some external cable clamping reeds and wire jumper clamping reed is installed that the part in the described clamping reed orientating component medial surface is not hidden by the working of plastics of described terminal assemblies; Can be bidirectional elastic between described clamping reed and the Security Unit contact chip and contact, also can be one is flexure strip, and another is a stator; Between the Security Unit handle portion of described wire jumper one-tenth end terminal assemblies and insertion a space of being large enough to hold the clamping tool head is arranged; Described external cable becomes end terminal and wire jumper one-tenth are held enough insertion test cords or circuit breaking plug between the Security Unit of terminal assemblies and insertion gap; The afterbody bending of inside one deck of described double-layer folding formula clamping reed forms an outside bossing; The outside bossing of described clamping reed protrudes from described external cable and becomes end terminal and wire jumper to become to hold outside the madial wall of terminal assemblies; Each described Security Unit interpolation frame can be divided into the little interpolation frame that equates with described Security Unit number; Described line bank module carrier appropriate location is rushed out the  font angle material of band installing hole, installed part when being used to be bent to form with described support body assembling, avoid joining in addition installed part thus and increase cost and volume, described support (70) is born grounding function simultaneously, makes the main frame structure more compact.

The support body of the utility model main frame comprises columns assemblies (61), alarm device mounting panel (62), transverse beam assembly (63), the installing rack assembly (64 up and down, 65), cable inlet bracket assembly (66) is the metal sheet except that alarm device mounting panel (62) and cable inlet bracket assembly (66) wherein, other each parts are pressed different length by two kinds of special aluminium section bars, are assembled by the standard connector; Described aluminium section bar is processed with a T type notch (75) at least, is used for by connector other supported being connected in the optional position; Described connector is special square or rhombus bolt assembly (76); Described aluminium shape material four sides all can be provided with described T-slot, so that all can realize random connection at the space different directions; The described installing hole of described module carrier can be mounting hole.

Because the utility model possesses every characteristics of said structure size aspect, makes the utility model compared with prior art have following all advantages and effect: 1, because the line bank of this distributing frame can assemble the new of the aforementioned related application of the applicant

Type Security Unit thereby make the MDF product that combines have aforementioned related application

All advantages and effect that novel Security Unit had.In addition can be by group

The structural change of part is reserved external cable and is become the end terminal to become the end terminal with wire jumper

Gap between assembly and the Security Unit is not can extract the guarantor on line bank

Under the safety unit situation, insert the circuit breaking plug open-circuit line, insert test cord by outside line

Open test is carried out in interior lines, outside line, also can insert in Security Unit one side simultaneously

Go into the circuit breaking plug open-circuit line, insert test cord at opposite side and test.In a word

The reconfiguration that adapts to this function is flexible, and is easy to operate.2, because the external cable of distributing frame of the present utility model becomes end terminal and wire jumper Cheng Duan

Be arranged on the front forefront and, do not have the latter to hide the former asking on same plane

Topic, both can be not covered yet behind the insertion Security Unit, so can not extract

The attended operations such as card line of taking out stitches under the Security Unit situation; To any a pair of line

The road take out stitches, block line, plug Security Unit and circuit test and loop line test operation all can not

Influence continuing and safeguard function of any other circuit, and can directly advance circuit

The on-line testing of row internal and external line.Promptly greatly facilitate attended operation on the one hand.Another

The aspect can all be pacified each assembly of the utility model safety wire connection row before dispatching from the factory

Install to the position, thus guaranteed safety wire connection row the integral installation quality and removed from

Unnecessary user installation workload.3, because the utility model distributing frame support body adopts the aluminium section bar structure, and and wiring

Row's novelty installs and fixes mode, on the one hand with regard to support body itself and design and

Processing cost is compared with brandreth, and total can reduce about sixty percent, on the other hand

Size on the cooperation Security Unit short transverse reduces the cramped construction with line bank

Design can make the line bank height significantly be reduced to 220mm by 250mm, promptly significantly

Reduced requirement for height, thereby made it reduce the machine room frame frame and machine room

In the time of cost, also further facilitated operation.

Existing accompanying drawings embodiment of the present utility model, same parts is used in all accompanying drawings

Same numeral is represented.

Fig. 1 is the schematic appearance of a kind of safety wire connection row of prior art;

Fig. 2 is the outline drawing with the matching used Security Unit of safety wire connection row shown in Figure 1;

Fig. 3 a and 3b are the safety wire connection row schematic appearance of an embodiment of the utility model;

Fig. 4 a, 4b and 4c are the outline drawing of a kind of Security Unit of matching with safety wire connection row shown in Figure 3;

Fig. 5 is that safety wire connection row shown in Figure 3 is at the partial structurtes cutaway view that inserts Security Unit shown in Figure 4 front and back;

The partial sectional view of Fig. 6 for being got along the B-B line of Fig. 5.

Fig. 7 can block the partial sectional view of line operation after inserting Security Unit shown in Figure 4 for explanation safety wire connection row shown in Figure 3;

Fig. 8 can insert the partial sectional view of test cord or circuit breaking plug after inserting Security Unit shown in Figure 4 for explanation safety wire connection row shown in Figure 3.

Fig. 9 a is the schematic diagram of the clamping reed in the safety wire connection row shown in Fig. 3 a;

Fig. 9 b is that clamping reed shown in Fig. 9 a is inserted into the partial sectional view after putting in place;

Figure 10 is the frame structure schematic diagram of a most preferred embodiment of the utility model main frame;

Figure 11 is the mounting structure schematic diagram between explanation the utility model line bank and distributing frame.

Fig. 3 shows the schematic appearance of an embodiment of the utility model, and this safety wire connection row can insert 100 Security Units at most as seen from the figure.Each label is represented among the figure: 1～10 of right flank is wire jumper trough inlet sequence number, the 11-Security Unit, 21-becomes end terminal assemblies, 22-Security Unit interpolation frame and trough frame, 23-ground wire and alarm signal line mount pad, 24-safety wire connection row component mounting block, 25-left side distributor plate, the right distributor plate of 26-, the outlet of 27-wire jumper trough, the 28-wire jumper becomes the end terminal, the 29-external cable becomes the end terminal, the outlet of 30-external cable trough, and 31-wire jumper Cheng Duan (a ') ply-yarn drill connects reed, the 32-wire jumper becomes end b ' ply-yarn drill to connect reed, the 33-external cable becomes end a ply-yarn drill to connect reed, and the 34-external cable becomes end b ply-yarn drill to connect reed, 35-printed board jack, 36-ground wire reed, 37-alarm signal line reed, 38-trough plastic closure, 39-wire jumper trough and external cable trough partition, 40-left side designation strip, the right designation strip of 41-.As Fig. 3 a and 3b as seen, wire jumper becomes end clamping reed 31,32 to become to hold clamping reed 33,34th with external cable, and the both sides up and down at same one-tenth end assembly 21 are in same plane.Wire jumper becomes end clamping reed 31,32 to be installed in the wire jumper one-tenth end terminal 28, and external cable one-tenth end clamping reed 33,34 is installed on external cable and becomes to hold in the terminal 29.Wire jumper and external cable trough are arranged on the upper and lower outer wall of described Security Unit interpolation frame in addition.

Fig. 3 b shows the structure of wire jumper trough.By Fig. 3 b as seen, wire jumper is to be penetrated by the wire jumper cabling notch 1～10 in the right flank, edge trough separately passes the opening part that becomes the clamping reed 31,32 on the end terminal 28 to corresponding wire jumper to wire jumper trough outlet 27, and the external cable wiring path of offside is like this too.

Fig. 4 for the outline drawing of a kind of Security Unit that matches embodiment illustrated in fig. 3.Number in the figure is represented: the 11-shell, 12 printed boards, the 13-wire jumper becomes end a ' contact spring, the 14-wire jumper becomes end b ' contact spring, the 15-external cable becomes the contact spring of end a, the 16-external cable becomes end b contact spring, 17-printed board ground wire printed circuit face, 18-printed board alarm signal line printed circuit face.This Security Unit becomes between end terminal 28 and the external cable one-tenth end terminal 29 to insert safety wire connection row in the wire jumper that becomes end assembly 21, in the printed board jack 35 that its printed board of stretching out 12 is inserted in ground wire and the alarm signal line mount pad 23.

Fig. 5 is embodiment illustrated in fig. 3 at the partial structurtes cutaway view that inserts the Security Unit front and back, the partial sectional view of Fig. 6 for being got along the B-B line of Fig. 5.By Fig. 5 and Fig. 6 as seen, when Security Unit does not insert safety wire connection row, the contact spring 13 of Security Unit, 14,15,16 all upspring protrudes in outside inferior narrow two side plane of its housing 11, when Security Unit inserts safety wire connection row, these contact chips are subjected to the compressing of one-tenth end assembly 21 inwalls of safety wire connection row to make its jut produce deformation, wire jumper contact chip 13,14 become the wire jumper clamping reed 31 of end 28 respectively with the wire jumper of packing into, 32 contact, external cable contact chip 15,16 become the external cable clamping reed 33,34 of end 29 to contact with the external cable of packing into respectively.By Fig. 5, Fig. 6 as seen, printed board jack 35 is inserted in the printed board 12 that Security Unit stretches out, ground wire printed circuit in the printed board applies copper face 17, and (Fig. 4 a) contacts with ground wire reed 36, alarm signal line printed circuit in the printed board applies copper face 18 and (sees that Fig. 4 a) contacts with alarm signal reed 37, just make communication line form the path complete connection by wire jumper and external cable being snapped in corresponding clamping reed, and realize communication line by the protection circuit in the Security Unit through the Security Unit circuit ... protection and alarm.In addition, as seen from Figure 6, described external cable becomes the top of the assembly 21 of end terminal and wire jumper Cheng Duan that the front forefront of described clamping reed is hidden fully, does not threaten personal safety during the clamping reed of alarm in case the operator touches fault.

Fig. 7 represents that line bank shown in Figure 3 becomes the end terminal to block the partial sectional view of line operation to wire jumper after inserting Security Unit shown in Figure 4.By this figure as seen, the line bank of this distributing frame also can carry out the card line operation of wire jumper 43 easily after inserting Security Unit; Be partial to the outside line side because of the handle portion of Security Unit, abdicated the space of enough insertion clamping tools.

Fig. 8 can insert the partial sectional view of test cord or circuit breaking plug after inserting Security Unit shown in Figure 4 for explanation line bank shown in Figure 3.By this figure as seen, when not inserting test cord 44 or circuit breaking plug 45: outside line clamping reed 33,34 contacts with Security Unit outside line contact spring 15,16 respectively, wire jumper clamping reed 31,32 becomes end in contact reed 13,14 to contact with the Security Unit wire jumper respectively, and the external cable line is connected by Security Unit circuit and jumper cable line.And when test cord 44 inserts the interior lines side (or outside line side) of Security Unit, wire jumper clamping reed 31,32 (or outside line clamping reed 33,34) contacts with the interior lines side (or outside line side) of the double-clad board of test cord, and the wire jumper contact spring 13,14 of Security Unit (or outside line contact spring 15,16) contacts with the outside line side (or interior lines side) of test cord double-clad board; The interior lines side of being drawn by test cord and each a pair of wire clamp of outside line side or plug insert interior lines respectively or cable side test meter can carry out inside and outside line test to circuit.When circuit breaking plug 45 inserts interior lines side when outside line side (or) of Security Units, insulated circuit breaking plug cuts off between the wire jumper contact spring 13,14 of wire jumper clamping reed 31,32 and Security Unit (or outside line clamping reed 33,34 and Security Unit outside line contact spring 15,16), and circuit is opened a way.And can carry out simultaneously: insert the circuit breaking plug open-circuit line in a side, insert test cord at opposite side and test.

Fig. 9 a is the clamping reed schematic diagram in this line bank shown in Fig. 3 a.This clamping reed is the double-layer folding formula, and each clamping reed is dual-mouth, can snap in two leads; The heart yearn of the every lead that snaps in contacts with four edges of a knife of the two-layer reed at bayonet socket place; The afterbody bending of the inside one deck of this clamping reed is to outer lug.Fig. 9 b becomes the end terminal to become the interior partial sectional view of end terminal assemblies with wire jumper for this clamping reed is loaded into external cable.By Fig. 9 b as seen, the bossing of the inside one deck of clamping reed protrudes from external cable and becomes end terminal and wire jumper to become to hold outside the madial wall of terminal assemblies.

Figure 10 schematically expresses the frame structure of the utility model main frame.By this figure as seen, support body of the present utility model is the head tree 61 that size has nothing in common with each other by shape is basic identical, alarm device mounting panel 62, transverse beam assembly 63, last installing rack 64, following installing rack 65, cable inlet bracket assembly 66, be the metal sheet except that alarm device mounting panel 62 and cable inlet bracket assembly 66 wherein, all the other each parts constitute by two kinds of special aluminium section bars.Head tree 61 is provided with the T type groove 75 of being convenient to link row's module and/or cabling as shown in figure 11, in the time of will fixing line bank module 700 on it, only need on the skeleton 70 of line bank module 700, go out the  font angle material 72 of a band installing hole 71, just can pass waist shape installing hole 71 by the special square or rhombus bolt assembly 76 that can in T type groove 75, slide arbitrarily and fixed and get final product through bending 90 °.

Though more than by embodiment the primary structure of main frame of the present utility model has been done detailed description; but those skilled in the art may make all conspicuous changes and remodeling to it according to above-mentioned design of the present utility model, so protection range of the present utility model is only determined by claims of desiring to comprise these remodeling.

Claims (24)

1, a kind of main frame, comprise frame support body and safety wire connection row, described safety wire connection row comprises interpolation frame and the external cable and the wire jumper trough of grafting Security Unit, alarm sheet and ground strip mount pad, be used to support the loose mail of forming the line bank module and become the end terminal to become to hold terminal line bank module carrier and the positive external cable that fixedly installs that this module is fixed in described frame support body, it is characterized in that with wire jumper:

Described external cable becomes the end terminal to become the external cable on the end terminal assemblies to become the end terminal to become the end terminal to be arranged on the front forefront with wire jumper with wire jumper, and at grade, this assembly is towards front openings, and external cable becomes the end terminal to become to hold the distance between the terminal to be enough to insert described Security Unit with relative wire jumper, so that described Security Unit is all imbedded except that handle portion within the positive facial plane of this assembly.

2, main frame as claimed in claim 1 is characterized in that: it is double-layer folding formula clamping reed that described external cable becomes the end terminal to become the end terminal with wire jumper, is installed in external cable and becomes the end terminal to become in the end terminal assemblies with wire jumper.

3, main frame as claimed in claim 2 is characterized in that: the clamping reed of described line bank and the contacted contact point of Security Unit contact chip are exposed to the front of safety wire connection row.

4, main frame as claimed in claim 1 is characterized in that: described line bank module carrier promptly is the mounting bracket of each assembly, and ground strip is also by this support tandem ground connection.

5, require 1 main frame as right power, it is characterized in that: on the described line bank module carrier alarm signal line socket is installed, is used for connecting the alarm signal line of described line bank intermodule by plug.

6, main frame as claimed in claim 1 is characterized in that: described external cable cabling notch is arranged on described safety wire connection row left side, and wire jumper becomes end cabling notch to be arranged on the right side of described safety wire connection row.

7, main frame as claimed in claim 1 is characterized in that: described wire jumper and external cable trough are arranged on the upper and lower outer wall of described Security Unit interpolation frame and external cable and wire jumper trough.

8, main frame as claimed in claim 3 is characterized in that: described external cable becomes end terminal and wire jumper to become to hold will pack into the front forefront of described clamping reed wherein of the front forefront of terminal assemblies to hide fully.

9, main frame as claimed in claim 3 is characterized in that: each described clamping reed is two clips, and each bayonet socket has four edges of a knife.

10, as main frame as described in the claim 6, it is characterized in that: two lateral walls of described Security Unit interpolation frame and external cable and wire jumper trough: upside is the wire jumper trough, downside is the external cable trough, described terminal assemblies comprises working of plastics and its interior some external cable clamping reeds and wire jumper clamping reed is installed that the part in the described clamping reed orientating component medial surface is not hidden by the working of plastics of described terminal assemblies.

11, main frame as claimed in claim 9 is characterized in that: contact for bidirectional elastic between described clamping reed and the Security Unit contact chip.

12, main frame as claimed in claim 9 is characterized in that: one of described clamping reed and Security Unit contact chip are flexure strip, and another is a stator.

13, main frame as claimed in claim 1 is characterized in that: between the Security Unit handle portion of described wire jumper one-tenth end terminal assemblies and insertion a space of being large enough to hold the clamping tool head is arranged.

14, main frame as claimed in claim 1 is characterized in that: described external cable becomes end terminal and wire jumper one-tenth are held enough insertion test cords or circuit breaking plug between the Security Unit of terminal assemblies and insertion gap.

15, main frame as claimed in claim 3 is characterized in that the afterbody bending of inside one deck of described double-layer folding formula clamping reed forms an outside bossing.

16, main frame as claimed in claim 3 is characterized in that: the outside bossing of described clamping reed protrudes from described external cable and becomes end terminal and wire jumper to become to hold outside the madial wall of terminal assemblies.

17, main frame as claimed in claim 1 is characterized in that each described Security Unit interpolation frame is divided into the little interpolation frame that equates with described Security Unit number.

18, a kind of main frame, comprise frame support body and safety wire connection row, wherein said safety wire connection row comprises the loose mail that supports composition line bank module and makes module be fixed in the support (70) of frame, it is characterized in that: the appropriate location of the described module carrier (70) of described safety wire connection row is rushed out the  font angle material of a band installing hole, installed part when being used to be bent to form with described support body assembling, described support (70) connects ground wire simultaneously.

19, as the described main frame of 1～17 arbitrary claim, it is characterized in that: the appropriate location of the described module carrier (70) of described safety wire connection row is rushed out the  font angle material of a band installing hole, installed part when being used to be bent to form with described support body assembling, described support (70) connects ground wire simultaneously.

20, main frame as claimed in claim 19, it is characterized in that: described support body comprises columns assemblies (61), alarm device mounting panel (62), transverse beam assembly (63), installing rack assembly (64,65) up and down, cable inlet bracket assembly (66), be the metal sheet except that alarm device mounting panel (62) and cable inlet bracket assembly (66) wherein, other each parts are pressed different length by two kinds of special aluminium section bars, are assembled by the standard connector.

21, as the main frame of claim 20, it is characterized in that: described aluminium section bar is processed with a T type notch (75) at least, is used for by can other supported being connected in the optional position connector (76) of art skating in described notch (75).

22, as the main frame of claim 21, it is characterized in that: described connector is special square or rhombus bolt assembly (76).

23, as the main frame of claim 22, it is characterized in that: described aluminium section bar is equipped with described T-slot on four sides, so that all can realize random connection at the space different directions.

24, as the main frame of 18,20～23 arbitrary claims, it is characterized in that: the described installing hole of described module carrier is a mounting hole.

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