DE202020105104U1 - Protective bracket with a mesh profile structure for underground tunnel construction - Google Patents

Abstract

Protective bracket with a mesh profile structure for underground tunnel construction, characterized in that it has a universal wheel (1), a main support rod (2), an auxiliary support rod (3), a support roof No. 1 (4), an expansion mechanism (6), a guide rail group (7) and a drive mechanism (8); a universal wheel (1) is attached to the bottom of the main support rod (2) and the auxiliary support rod (3);
and wherein the main support rod (2) is formed by a fixed main rod (2-1), a movable main rod (2-2), a support rod screw (2-3), a flat thrust ball bearing (2-4) and a main bearing (2-5) is trained; and wherein the universal wheel (1) located on the lower part of the main support rod (2) is attached to the lower end of the fixed main rod (2-1); and wherein in the fixed main rod (2-1) the support rod screw (2-3) is movably inserted, and wherein the other end of the support rod screw (2-3) is inserted into the main bearing (2-5), and wherein the main bearing ( 2-5) is embedded in the lower end of the movable main rod (2-2), and a driven gear (8-4) in the support rod screw (2-3) located at the upper end of the fixed main rod (2-1) Drive mechanism (8) is attached, and wherein on an inner annular surface of the driven gear (8-4) a thread is provided which is in engagement with the support rod screw (2-3), and wherein a lower annular surface of the driven gear (8- 4) is attached to an upper ring surface of the flat thrust ball bearing (2-4), and wherein a lower ring surface of the flat thrust ball bearing (2-4) is attached to the upper end of the fixed main rod (2-1);
and wherein the auxiliary support rod (3) is formed by a fixed auxiliary rod (3-1), a movable auxiliary rod (3-2), a support rod shaft (3-3) and a guide bearing of the support rod (3-4); and wherein a universal wheel (1) located on the lower part of the auxiliary support rod (3) is attached to the lower end of the fixed auxiliary rod (3-1), and wherein in the fixed auxiliary rod (3-1) the support rod shaft (3-3) is fixed by means of the upward - and downward movement of the guide bearing of the support rod (3-4) is inserted, and wherein the upper end of the support rod shaft (3-3) is fixed to the lower end of the auxiliary movable rod (3-2);
and a supporting roof No. 1 (4) is attached to the upper end of the main movable rod (2-2) and the upper end of the auxiliary movable rod (3-2);
and wherein the expansion mechanism (6) is formed by a threaded sleeve rod (6-1), an expansion screw (6-2), a driven bevel gear (6-3) and a positioning pin (6-4); and wherein one end of the threaded sleeve rod (6-1) is screwed through a bearing at the lower end of the fixed main rod (2-1), and wherein in the threaded sleeve rod (6-1) the expansion screw (6-2) is screwed by thread, and wherein the outer end of the expansion screw (6-2) passes through the other end of the threaded sleeve rod (6-1) and is then attached to the lower end of the fixed auxiliary rod (3-1);
and wherein the guide rail group (7) is formed by a guide rail No. 1 (7-1), a guide rail No. 2 (7-2) and a carriage (7-3); and one end of the guide rail No. 1 (7-1) is fixed to a side wall of the main movable rod (2-2), and one end of the guide rail No. 2 (7-2) is fixed by means of the carriage (7-3) is slidably disposed on the guide rail No. 1 (7-1), and the other end of the guide rail No. 2 (7-2) is fixed to a side wall of the auxiliary movable rod (3-2);
and wherein the drive mechanism (8) further comprises a drive motor (8-1), a shaft (8-2), a drive gear (8-3), a drive bevel gear (8-5) and a motor mount (8-6); and wherein the drive motor (8-1) is attached to a side wall of the fixed main rod (2-1) by means of the motor bracket (8-6), and wherein the drive motor (8-1) is a bidirectional drive motor, and wherein to an output end of the drive motor, the drive bevel gear (8-5) is connected by means of the shaft (8-2), and wherein the drive bevel gear (8-5) is in engagement with the driven bevel gear (6-3), and the driven The gear wheel 6-3 is adjustably placed on the outer wall of the threaded sleeve rod (6-1) and connected to the threaded sleeve rod (6-1) in a positioning manner by means of the positioning pin (6-4); and wherein the drive gear (8-3) is connected to the other output end of the drive motor (8-1) by means of the shaft (8-2), and wherein the drive gear (8-3) is in mesh with the driven gear (8-4 ) stands; and wherein the drive motor (8-1) is connected to an external power supply.

Description

TECHNICAL AREA

The present utility model relates to the technical field of tunnel construction, in particular a protective bracket with a mesh profile structure for underground tunnel construction.

STATE OF THE ART

When building a tunnel, some brackets should be used to support the mesh profile frames that have already been set up or the constructed tunnel walls. Protective supports currently in existence are built and shaped merely by pipes or angle steels and pipe connectors and are intended to be pre-built based on the size of the mesh profile structure and once built and shaped, their support area cannot be changed. There is poor adjustability, which is not conducive to the construction of tunnels of different sizes, and there is an urgent need for the improvements.

CONTENTS OF THE PRESENT USED MODEL

The present utility model aims to provide a protective bracket with a mesh profile structure for underground tunnel construction with regard to the above-described disadvantages and deficiencies from the prior art, in which the support area can be adjusted based on the size of the mesh profile frame, whereby good adjustability is achieved and the range of use is enlarged.

• und wobei die Hauptstützstange durch eine feste Hauptstange, eine bewegliche Hauptstange, eine Stützstangenschraube, ein ebenes Schubkugellager und ein Hauptlager ausgebildet ist; und wobei das am Unterteil der Hauptstützstange befindliche Universalrad am unteren Ende der festen Hauptstange befestigt ist; und wobei in der festen Hauptstange die Stützstangenschraube beweglich eingesteckt ist, und wobei das andere Ende der Stützstangenschraube in dem Hauptlager eingesteckt ist, und wobei das Hauptlager im unteren Ende der beweglichen Hauptstange eingebettet ist, und wobei an der am oberen Ende der festen Hauptstange befindlichen Stützstangenschraube ein angetriebenes Zahnrad in dem Antriebsmechanismus aufgesetzt ist, und wobei an einer inneren Ringfläche des angetriebenen Zahnrades ein Gewinde vorgesehen ist, das im Eingriff mit der Stützstangenschraube steht, und wobei eine untere Ringfläche des angetriebenen Zahnrades an einer oberen Ringfläche des ebenen Schubkugellagers befestigt ist, und wobei eine untere Ringfläche des ebenen Schubkugellagers am oberen Ende der festen Hauptstange befestigt ist;
• und wobei die Hilfsstützstange durch eine feste Hilfsstange, eine bewegliche Hilfsstange, eine Stützstangenwelle und ein Führungslager der Stützstange ausgebildet ist; und wobei ein am Unterteil der Hilfsstützstange befindliches Universalrad am unteren Ende der festen Hilfsstange befestigt ist, und wobei in der festen Hilfsstange die Stützstangenwelle mittels der Aufwärts- und Abwärtsbewegung des Führungslagers der Stützstange eingesteckt ist, und wobei das obere Ende der Stützstangenwelle am unteren Ende der beweglichen Hilfsstange befestigt ist;
• und wobei am oberen Ende der beweglichen Hauptstange und oberen Ende der beweglichen Hilfsstange jeweils ein Stützdach Nr. 1 befestigt ist;
• und wobei der Dehnungsmechanismus durch eine Gewindehülsenstange, eine Dehnungsschraube, ein angetriebenes Kegelrad und einen Positionierstift ausgebildet ist; und wobei ein Ende der Gewindehülsenstange durch ein Lager am unteren Ende der festen Hauptstange verschraubt ist, und wobei in der Gewindehülsenstange die Dehnungsschraube durch Gewinde verschraubt ist, und wobei das äußere Ende der Dehnungsschraube durch das andere Ende der Gewindehülsenstange geht und danach am unteren Ende der festen Hilfsstange befestigt ist;
• und wobei die Führungsschienengruppe durch eine Führungsschiene Nr. 1, eine Führungsschiene Nr. 2 und einen Schlitten ausgebildet ist; und wobei ein Ende der Führungsschiene Nr. 1 an einer Seitenwand der beweglichen Hauptstange befestigt ist, und wobei ein Ende der Führungsschiene Nr. 2 mittels des Schlittens schiebbar auf der Führungsschiene Nr. 1 angeordnet ist, und wobei das andere Ende der Führungsschiene Nr. 2 an einer Seitenwand der beweglichen Hilfsstange befestigt ist;
• und wobei der Antriebsmechanismus weiterhin einen Antriebsmotor, eine Welle, ein Antriebszahnrad, ein Antriebskegelrad und eine Motorhalterung umfasst; und wobei der Antriebsmotor mittels der Motorhalterung an einer Seitenwand der festen Hauptstange befestigt ist, und wobei es sich bei dem Antriebsmotor um einen bidirektionalen Antriebsmotor handelt, und wobei an ein Ausgabeende des Antriebsmotors das Antriebskegelrad mittels der Welle angeschlossen ist, und wobei das Antriebskegelrad im Eingriff mit dem angetriebenen Kegelrad steht, und wobei das angetriebene Zahnrad 6-3 einstellbar an der Außenwand der Gewindehülsenstange aufgesetzt und mittels des Positionierstifts mit der Gewindehülsenstange positionierend verbunden ist; und wobei das Antriebszahnrad mittels der Welle an das andere Ausgabeende des Antriebsmotors angeschlossen ist, und wobei das Antriebszahnrad im Eingriff mit dem angetriebenen Zahnrad steht; und wobei der Antriebsmotor an eine externe Stromversorgung angeschlossen ist.

In order to achieve the above object, the present utility model employs the following technical solution: comprising a universal wheel, a main support rod, an auxiliary support rod, a support roof No. 1, an expansion mechanism, a guide rail group and a drive mechanism; a universal wheel is attached to the bottom of the main support rod and the auxiliary support rod;

• and wherein the main support rod is formed by a fixed main rod, a movable main rod, a support rod screw, a flat thrust ball bearing, and a main bearing; and wherein the universal wheel located at the bottom of the main support rod is attached to the lower end of the fixed main rod; and wherein the support rod screw is movably inserted in the fixed main rod, and wherein the other end of the support rod screw is inserted in the main bearing, and wherein the main bearing is embedded in the lower end of the movable main rod, and in which the support rod screw located at the upper end of the fixed main rod a driven gear is mounted in the drive mechanism, and wherein a thread is provided on an inner annular surface of the driven gear, which is in engagement with the support rod screw, and wherein a lower annular surface of the driven gear is attached to an upper annular surface of the flat thrust ball bearing, and wherein a lower annular surface of the planar thrust ball bearing is attached to the upper end of the fixed main rod;
• and wherein the auxiliary support rod is formed by a fixed auxiliary rod, a movable auxiliary rod, a support rod shaft and a guide bearing of the support rod; and wherein a universal wheel located at the lower part of the auxiliary support rod is attached to the lower end of the fixed auxiliary rod, and wherein in the fixed auxiliary rod the support rod shaft is inserted by means of the upward and downward movement of the guide bearing of the support rod, and the upper end of the support rod shaft at the lower end of the movable auxiliary rod is attached;
• and wherein the upper end of the main movable rod and the upper end of the auxiliary movable rod each have a supporting roof No. 1 attached;
• and wherein the expansion mechanism is formed by a threaded sleeve rod, an expansion screw, a driven bevel gear and a positioning pin; and wherein one end of the threaded sleeve rod is screwed through a bearing at the lower end of the fixed main rod, and wherein in the threaded sleeve rod the expansion screw is screwed by threads, and wherein the outer end of the expansion screw passes through the other end of the threaded sleeve rod and then at the lower end of the fixed auxiliary rod is attached;
• and wherein the guide rail group is formed by a guide rail No. 1, a guide rail No. 2 and a carriage; and one end of the guide rail No. 1 is fixed to a side wall of the main movable rod, and one end of the guide rail No. 2 is slidably disposed on the guide rail No. 1 by means of the carriage, and the other end of the guide rail No. 2 attached to a side wall of the auxiliary movable rod;
• and wherein the drive mechanism further comprises a drive motor, a shaft, a drive gear, a drive bevel gear, and a motor mount; and wherein the drive motor is attached to a side wall of the fixed main rod by means of the motor bracket, and the drive motor is is a bidirectional drive motor, and at an output end of the drive motor, the drive bevel gear is connected by means of the shaft, and wherein the drive bevel gear is in mesh with the driven bevel gear, and the driven gear 6-3 is adjustably placed on the outer wall of the threaded sleeve rod and connected to the threaded sleeve rod in a positioning manner by means of the positioning pin; and wherein the drive gear is connected to the other output end of the drive motor by means of the shaft, and wherein the drive gear is in mesh with the driven gear; and wherein the drive motor is connected to an external power supply.

A delimitation plate is preferably attached to an end of the guide rail No. 1 facing away from the movable main rod, the delimitation plate being arranged in movable contact with the carriage.

Preferably, a pin shaft is inserted in the lower end of the supporting roof No. 1, a plurality of auxiliary roofs being screwed to the pin shaft located at a front and rear position of the supporting roof No. 1, and to the pin shafts located on the outside of the front and rear auxiliary roof, respectively a nut is screwed, and wherein the front and rear nuts are arranged adjacent to the outer side wall of the front and rear sub-support roofs.

A polyhedral positioning sleeve is preferably placed on the lower end of the supporting roof No. 1 and is movably embedded in a polyhedral groove body provided at the tip of the movable main rod and the movable auxiliary rod.

A soft ladder is preferably suspended from the bottom of the guide rail No. 1.

A horizontal guide bearing is preferably embedded in each of the fixed main rod, the movable main rod, the fixed auxiliary rod and the movable auxiliary rod, in which a horizontal guide shaft is inserted, and an end plate is connected to one end of the horizontal guide shaft, and a plurality of auxiliary support rods by means of of the horizontal guide bearing are movably attached to the horizontal guide shaft, and a support roof No. 2 is attached to the tip of the movable auxiliary rods in the plurality of auxiliary support rods located behind the main support rod and the auxiliary support rod.

A coupling groove is preferably provided on two mutually opposite vertical surfaces of the support roof no. 1, with a coupling edge being formed in one piece on two mutually opposite vertical surfaces of the support roof no. 2, which is fitted into the coupling groove.

Using the structure described above, the present utility model has the following advantages: the present utility model provides a protective bracket with a mesh profile structure for underground tunnel construction, in which the support area can be adjusted based on the size of the mesh profile frame, thereby achieving good adjustability and the area of application is enlarged.

Figure list

• 1 Fig. 13 shows a schematic structural view of a detailed embodiment.
• 2 shows a left side view according to 1 .
• 3 shows a schematic representation of the connection between the supporting roof No. 1 and the auxiliary supporting roof in a first detailed embodiment.
• 4th Figure 3 shows a schematic representation of the actuation of a second detailed embodiment.

List of reference symbols

1

Universal wheel

2

Main support rod

2-1

Fixed main pole

2-2

Movable main rod

2-3

Support rod screw

2-4

Flat thrust ball bearing

2-5

Main camp

3

Auxiliary support rod

3-1

Fixed auxiliary rod

3-2

Movable auxiliary bar

3-3

Support rod shaft

3-4

Guide bearing of the support rod

4th

Support roof no.1

4-1

Coupling groove

4-2

Polyhedral positioning sleeve

5

Support roof No. 2

5-1

Coupling edge

6th

Stretching mechanism

6-1

Threaded sleeve rod

6-2

Expansion screw

6-3

Driven bevel gear

6-4

Positioning pin

7th

Guide rail group

7-1

Guide rail no.1

7-2

Guide rail no.2

7-3

Sledge

7-4

Boundary plate

8th

Drive mechanism

8-1

Drive motor

8-2

wave

8-3

Drive gear

8-4

Driven gear

8-5

Drive pinion

8-6

Engine mount

9

Soft ladder

10

Horizontal guide shaft

10-1

End plate

11

Horizontal guide bearing

12

Pin shaft

13th

Secondary support roof

DETAILED DESCRIPTION

In connection with figures in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model are explained clearly and completely below. Obviously, the explained embodiments do not represent all embodiments, but only a part of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art on the basis of the embodiments in the present utility model without creative work are to be regarded as being within the scope of the present utility model.

Detailed embodiment 1:

• und wobei die Hauptstützstange 2 durch eine feste Hauptstange 2-1, eine bewegliche Hauptstange 2-2, eine Stützstangenschraube 2-3, ein ebenes Schubkugellager 2-4 und ein Hauptlager 2-5 ausgebildet ist; und wobei das am Unterteil der Hauptstützstange 2 befindliche Universalrad 1 mittels einer Schraube am unteren Ende der festen Hauptstange 2-1 befestigt ist; und wobei in der festen Hauptstange 2-1 die Stützstangenschraube 2-3 beweglich eingesteckt ist, und wobei das andere Ende der Stützstangenschraube 2-3 in dem Hauptlager 2-5 eingesteckt ist, und wobei das Hauptlager 2-5 im unteren Ende der beweglichen Hauptstange 2-2 eingebettet, angeschweißt und befestigt ist, und wobei an der am oberen Ende der festen Hauptstange 2-1 befindlichen Stützstangenschraube 2-3 ein angetriebenes Zahnrad 8-4 in dem Antriebsmechanismus 8 aufgesetzt ist, und wobei an einer inneren Ringfläche des angetriebenen Zahnrades 8-4 ein Gewinde vorgesehen ist, das im Eingriff mit der Stützstangenschraube 2-3 steht, und wobei eine untere Ringfläche des angetriebenen Zahnrades 8-4 durch die Schraubverbindung an einer oberen Ringfläche des ebenen Schubkugellagers 2-4 befestigt ist, und wobei eine untere Ringfläche des ebenen Schubkugellagers 2-4 durch die Schraubverbindung am oberen Ende der festen Hauptstange 2-1 befestigt ist;
• und wobei die Hilfsstützstange 3 durch eine feste Hilfsstange 3-1, eine bewegliche Hilfsstange 3-2, eine Stützstangenwelle 3-3 und ein Führungslager der Stützstange 3-4 ausgebildet ist; und wobei ein am Unterteil der Hilfsstützstange 3 befindliches Universalrad 1 durch die Schraubverbindung am unteren Ende der festen Hilfsstange 3-1 befestigt ist, und wobei in der festen Hilfsstange 3-1 die Stützstangenwelle 3-3 mittels der Aufwärts- und Abwärtsbewegung des Führungslagers der Stützstange 3-4 eingesteckt ist, und wobei das obere Ende der Stützstangenwelle 3-3 am unteren Ende der beweglichen Hilfsstange 3-2 befestigt ist; und wobei die obigen Universalräder 1 jeweils mit einem Verriegelungsmechanismus versehen sind;
• und wobei mit dem oberen Ende der beweglichen Hauptstange 2-2 und oberen Ende der beweglichen Hilfsstange 3-2 jeweils ein Stützdach Nr. 1 4 abnehmbar verbunden ist;
• und wobei der Dehnungsmechanismus 6 durch eine Gewindehülsenstange 6-1, eine Dehnungsschraube 6-2, ein angetriebenes Kegelrad 6-3 und einen Positionierstift 6-4 ausgebildet ist; und wobei ein Ende der Gewindehülsenstange 6-1 durch ein Lager am unteren Ende der festen Hauptstange 2-1 verschraubt ist, und wobei in der Gewindehülsenstange 6-1 die Dehnungsschraube 6-2 durch Gewinde verschraubt ist, und wobei das äußere Ende der Dehnungsschraube 6-2 durch das andere Ende der Gewindehülsenstange 6-1 geht und danach am unteren Ende der festen Hilfsstange 3-1 befestigt ist;
• und wobei die Führungsschienengruppe 7 durch eine Führungsschiene Nr. 1 7-1, eine Führungsschiene Nr. 2 7-2 und einen Schlitten 7-3 ausgebildet ist; und wobei ein Ende der Führungsschiene Nr. 1 7-1 an einer Seitenwand der beweglichen Hauptstange 2-2 befestigt ist, und wobei ein Ende der Führungsschiene Nr. 2 7-2 mittels des Schlittens 7-3 schiebbar auf der Führungsschiene Nr. 1 7-1 angeordnet ist, und wobei das andere Ende der Führungsschiene Nr. 2 7-2 an einer Seitenwand der beweglichen Hilfsstange 3-2 angeschweißt und befestigt ist; und wobei an einem der beweglichen Hauptstange 2-2 abgewandten Ende der Führungsschiene Nr. 1 7-1 eine Begrenzungsplatte 7-4 angeschweißt und befestigt ist, und wobei die Begrenzungsplatte 7-4 in beweglichem Kontakt mit dem Schlitten 7-3 angeordnet ist, (um zu vermeiden, dass sich der Schlitten 7-3 von der Führungsschiene Nr. 1 7-1 ablöst); und wobei an dem Boden der Führungsschiene Nr. 1 7-1 eine weiche Leiter 9 aufgehängt ist;
• und wobei der Antriebsmechanismus 8 weiterhin einen Antriebsmotor 8-1, eine Welle 8-2, ein Antriebszahnrad 8-3, ein Antriebskegelrad 8-5 und eine Motorhalterung 8-6 umfasst; und wobei der Antriebsmotor 8-1 mittels der Motorhalterung 8-6 an einer Seitenwand der festen Hauptstange 2-1 befestigt ist (der Motorhalterung 8-6 ist mittels einer Schraube mit der festen Hauptstange 2-1 fest verbunden), und wobei es sich bei dem Antriebsmotor 8-1 um einen bidirektionalen Antriebsmotor handelt, und wobei an ein Ausgabeende des Antriebsmotors das Antriebskegelrad 8-5 mittels der Welle 8-2 angeschlossen ist, und wobei das Antriebskegelrad 8-5 im Eingriff mit dem angetriebenen Kegelrad 6-3 steht, und wobei das angetriebene Zahnrad 6-3 einstellbar an der Außenwand der Gewindehülsenstange 6-1 aufgesetzt und mittels des Positionierstifts 6-4 mit der Gewindehülsenstange 6-1 positionierend verbunden ist (der Positionierstift 6-4 geht durch die Seitenwand des angetriebenen Kegelrades 6-3 und wird danach in der Ringwand der Gewindehülsenstange 6-1 eingesteckt); und wobei das Antriebszahnrad 8-3 mittels der Welle 8-2 an das andere Ausgabeende des Antriebsmotors 8-1 angeschlossen ist, und wobei das Antriebszahnrad 8-3 im Eingriff mit dem angetriebenen Zahnrad 8-4 steht; und wobei der Antriebsmotor 8-1 an eine externe Stromversorgung angeschlossen ist;
• und wobei in der festen Hauptstange 2-1, der beweglichen Hauptstange 2-2, der festen Hilfsstange 3-1 und der beweglichen Hilfsstange 3-2 jeweils ein horizontales Führungslager 11 eingebettet ist, in dem eine horizontale Führungswelle 10 eingesteckt ist, und wobei an ein Ende der horizontalen Führungswelle 10 eine Endplatte 10-1 angeschlossen ist, und wobei zwei Hilfsstützstangen 3 mittels des horizontalen Führungslagers 11 beweglich an der horizontalen Führungswelle 10 aufgesetzt sind (eine befindet sich hinter der Hauptstützstange 2 und die andere befindet sich hinter der Hilfsstützstange 3), und wobei an der Spitze der beweglichen Hilfsstangen 3-2 in den hinter der Hauptstützstange 2 und der Hilfsstützstange 3 befindlichen Hilfsstützstangen 3 jeweils ein Stützdach Nr. 2 5 befestigt ist;
• und wobei am unteren Ende des Stützdachs Nr. 1 4 und des Stützdachs Nr. 2 5 jeweils eine polyedrische Positionierhülse 4-2 aufgesetzt, angeschweißt und befestigt ist, und wobei die Struktur der polyedrischen Positionierhülse 4-2 gleich wie die Struktur der Sechskantmutter ist, und wobei die polyedrische Positionierhülse 4-2 beweglich in einem an der Spitze der beweglichen Hauptstange 2-2 und der beweglichen Hilfsstange 3-2 vorgesehenen polyedrischen Nutkörper eingebettet ist; und wobei im unteren Ende des Stützdachs Nr. 1 4 und des Stützdachs Nr. 2 5 jeweils eine Stiftwelle 12 eingesteckt ist, und wobei an der an einer vorderen und hinteren Position des Stützdachs Nr. 1 4 und des Stützdachs Nr. 2 5 befindlichen Stiftwelle 12 mehrere Nebenstützdächer 13 verschraubt sind, und wobei an den an der Außenseite des vorderen und hinteren Nebenstützdachs 13 befindlichen Stiftwellen 12 jeweils eine Mutter durch die Gewinde verschraubt ist, und wobei die vordere und hintere Mutter anliegend an der Außenseitenwand des vorderen und hinteren Nebenstützdachs 13 angeordnet sind.

As in 1 to 3 As illustrated, the present detailed embodiment employs the following technical solution: comprising a universal wheel 1 , a main support rod 2 , an auxiliary support rod 3 , a supporting roof No. 1 4, a supporting roof No. 2 5, an expansion mechanism 6th , a guide rail group 7th , a drive mechanism 8th , a soft ladder 9 , a horizontal guide shaft 10 , a horizontal guide bearing 11 , a pin shaft 12 and a secondary supporting roof 13 ;

• and being the main support rod 2 by a fixed main rod 2-1 , a movable main pole 2-2 , a support rod screw 2-3 , a flat thrust ball bearing 2-4 and a main warehouse 2-5 is trained; and that on the bottom of the main support rod 2 located universal wheel 1 by means of a screw at the lower end of the fixed main rod 2-1 is attached; and being in the fixed main rod 2-1 the support rod screw 2-3 is movably inserted, and the other end of the support rod screw 2-3 in the main camp 2-5 is plugged in, and where the main bearing 2-5 in the lower end of the moving main rod 2-2 embedded, welded and attached, and being attached to the top of the fixed main rod 2-1 located support rod screw 2-3 a driven gear 8-4 in the drive mechanism 8th is placed, and wherein on an inner annular surface of the driven gear 8-4 threads are provided which engage the support rod screw 2-3 stands, and wherein a lower annular surface of the driven gear 8-4 by the screw connection on an upper ring surface of the flat thrust ball bearing 2-4 is attached, and wherein a lower annular surface of the flat thrust ball bearing 2-4 through the screw connection at the top of the fixed main rod 2-1 is attached;
• and wherein the auxiliary support rod 3 by a fixed auxiliary rod 3-1 , a movable auxiliary rod 3-2 , a support rod shaft 3-3 and a guide bearing of the support rod 3-4 is trained; and one at the bottom of the auxiliary support rod 3 located universal wheel 1 through the screw connection at the lower end of the fixed auxiliary rod 3-1 is attached, and being in the fixed auxiliary rod 3-1 the support rod shaft 3-3 by means of the up and down movement of the guide bearing of the support rod 3-4 is inserted, and wherein the upper end of the support rod shaft 3-3 at the lower end of the movable auxiliary rod 3-2 is attached; and wherein the above universal wheels 1 each provided with a locking mechanism;
• and with the upper end of the movable main rod 2-2 and upper end of the movable auxiliary rod 3-2 in each case a supporting roof No. 1 4 is removably connected;
• and wherein the stretching mechanism 6th by a threaded sleeve rod 6-1 , an expansion screw 6-2 , a driven bevel gear 6-3 and a positioning pin 6-4 is trained; and wherein one end of the threaded sleeve rod 6-1 by a bearing at the lower end of the fixed main rod 2-1 is screwed, and being in the threaded sleeve rod 6-1 the expansion screw 6-2 is screwed by thread, and being the outer end of the expansion screw 6-2 through the other end of the threaded sleeve rod 6-1 goes and then at the lower end of the fixed auxiliary rod 3-1 is attached;
• and wherein the guide rail group 7th by a guide rail No. 1 7-1 , a guide rail No. 2 7-2 and a sled 7-3 is trained; and one end of the guide rail No. 1 7-1 on a side wall of the movable main rod 2-2 is attached, and one end of the guide rail No. 2 7-2 by means of the slide 7-3 slidable on guide rail no.1 7-1 is arranged, and the other end of the guide rail No. 2 7-2 on a side wall of the movable auxiliary rod 3-2 is welded and fastened; and being on one of the main movable rods 2-2 opposite end of guide rail no.1 7-1 a limiting plate 7-4 welded and fixed, and wherein the boundary plate 7-4 in moving contact with the slide 7-3 is arranged (in order to avoid that the slide 7-3 from guide rail No. 1 7-1 peeled off); and at the bottom of the guide rail No. 1 7-1 a soft ladder 9 is hung;
• and wherein the drive mechanism 8th furthermore a drive motor 8-1 , a wave 8-2 , a drive gear 8-3 , a drive pinion 8-5 and a motor mount 8-6 includes; and wherein the drive motor 8-1 by means of the motor mount 8-6 on a side wall of the fixed main rod 2-1 attached (the motor mount 8-6 is by means of a screw with the fixed main rod 2-1 firmly connected), and the drive motor 8-1 is a bidirectional drive motor, and at an output end of the drive motor, the drive bevel gear 8-5 by means of the shaft 8-2 is connected, and wherein the drive bevel gear 8-5 in engagement with the driven bevel gear 6-3 stands, and wherein the driven gear 6-3 adjustable on the outer wall of the threaded sleeve rod 6-1 put on and using the positioning pin 6-4 with the threaded sleeve rod 6-1 is connected for positioning (the positioning pin 6-4 goes through the side wall of the driven bevel gear 6-3 and is then in the ring wall of the threaded sleeve rod 6-1 plugged in); and wherein the drive gear 8-3 by means of the shaft 8-2 to the other output end of the drive motor 8-1 connected, and wherein the drive gear 8-3 in engagement with the driven gear 8-4 stands; and wherein the drive motor 8-1 is connected to an external power supply;
• and being in the fixed main rod 2-1 , the main moving rod 2-2 , the fixed auxiliary rod 3-1 and the movable auxiliary rod 3-2 one horizontal guide bearing each 11 is embedded in which a horizontal guide shaft 10 is inserted, and being at one end of the horizontal guide shaft 10 an end plate 10-1 is connected, and wherein two auxiliary support rods 3 by means of the horizontal guide bearing 11 movable on the horizontal guide shaft 10 are in place (one is behind the main support pole 2 and the other is behind the auxiliary support rod 3 ), and being at the top of the movable auxiliary rods 3-2 in the behind the main support pole 2 and the auxiliary support rod 3 located auxiliary support rods 3 in each case a supporting roof No. 2 5 is attached;
• and at the lower end of the supporting roof No. 1 4 and the supporting roof No. 2 5 each have a polyhedral positioning sleeve 4-2 is placed, welded and fastened, and wherein the structure of the polyhedral positioning sleeve 4-2 same as the structure of the hex nut, and where the polyhedral positioning sleeve 4-2 movable in one at the top of the movable main rod 2-2 and the movable auxiliary rod 3-2 provided polyhedral groove body is embedded; and in the lower end of the supporting roof No. 1 4 and the supporting roof No. 2 5 each have a pin shaft 12 is inserted, and on the pin shaft located at a front and rear position of the support roof No. 1 4 and the support roof No. 2 5 12 several secondary supporting roofs 13 are bolted, and being attached to the outside of the front and rear auxiliary roofs 13 located pin shafts 12 each one nut is screwed through the thread, and wherein the front and rear nut resting against the outer side wall of the front and rear auxiliary roof 13 are arranged.

The working principle of the present utility model is as follows: by means of the universal wheel 1 become the main support pole 2 and the auxiliary support rod 3 moved to a location below the mesh profile structure to be supported after the angle (degree of expansion) between the plurality of secondary support roofs 13 on the pin shaft 12 was rotated based on the degree of arc at the top of the mesh profile structure, positioning by means of the nut on the pin shaft 12 realized, then those at a front and rear position on the same horizontal guide shaft 10 attached main support rod 2 and auxiliary support rod 3 as well as those at a front and rear position same horizontal guide shaft 10 attached two auxiliary support rods 3 manually pulled to adjust the distance between the front and rear positions, then the power supply to the drive motor 8-1 turned on to the drive motor 8-1 start to drive the pinion 8-5 and the drive gear 8-3 drive to rotate, then drives the drive bevel gear 8-5 the driven bevel gear 6-3 to rotate, the drive gear 8-3 drives the driven gear 8-4 to rotate, the driven bevel gear 6-3 drives the threaded sleeve rod 6-1 for rotation and the driven gear 8-4 drives the support rod screw 2-3 to rotate to the distance between the auxiliary support rod 3 and the main support rod 2 to adjust as well as the main support rod 2 and the multiple auxiliary support rods 3 propel to raise and lower; after the distance between the auxiliary support rod 3 and the main support rod 2 has been set to the required support width, the drive motor 8-1 stopped, then the positioning pin 6-4 pulled out, and the driven bevel gear 6-3 comes off the threaded sleeve rod 6-1 off so that the driven bevel gear 6-3 away from the drive bevel gear 8-5 replaces, now the drive motor 8-1 started further to the main support pole 2 and the auxiliary support rod 3 Continue to propel the lift until the tips of the at the top of the main support rod 2 and the auxiliary support rod 3 1 4 and the several auxiliary roofs stretched out in a fan-shaped structure 13 butt against the bottom of the mesh profile structure, now the whole thing is designed as a frame-like holder.

1. 1. mittels des Antriebsmotors werden die Abstände in der horizontalen und vertikalen Richtung gleichzeitig zum Einstellen gebracht, um die Energie zu sparen, gleichzeitig können die Breite und die Höhe schnell eingestellt werden, um die Stützgeschwindigkeit zu verbessern;
2. 2. mit der Anordnung der weichen Leiter kann das Baupersonal schnell auf der Führungsschienengruppe an der Spitze der Halterung klettern, um den Bau der Spitze der Maschenprofilstruktur durch das Baupersonal zu erleichtern;
3. 3. mit der Anordnung von den mehreren Nebenstützdächern können unterschiedliche Expansionsgrade eingestellt werden, um eine Anpassung an die Stützung der Spitze der Maschenprofilstruktur mit unterschiedlichen Bogengraden zu realisieren;
4. 4. die Böden des Stützdachs Nr. 1 und des Stützdachs Nr. 2 übernehmen jeweils eine polyedrische Positionierhülse, um eine abnehmbare Verbindung mit der Hauptstützstange und der Hilfsstützstange zu realisieren, wodurch ein Austausch durch ein Stützdach Nr. 1 und ein Stützdach Nr. 2 unterschiedlicher Höhe erleichtert wird, um eine Verwendung in dem Falle, dass im Höheneinstellungsbereich die Stützhöhe nicht erreicht werden kann, zu realisieren, so dass der Einsatzbereich vergrößert wird.

Using the above structure, the present detailed embodiment has the following advantages:

1. 1. by means of the drive motor, the distances in the horizontal and vertical directions are adjusted at the same time to save energy, at the same time, the width and height can be adjusted quickly to improve the support speed;
2. 2. With the soft ladder arrangement, construction personnel can quickly climb the guide rail group at the top of the bracket to facilitate construction of the top of the mesh profile structure by construction personnel;
3. 3. With the arrangement of the several secondary supporting roofs, different degrees of expansion can be set in order to realize an adaptation to the support of the top of the mesh profile structure with different degrees of arc;
4. 4. The bottoms of the supporting roof No. 1 and the supporting roof No. 2 each adopt a polyhedral positioning sleeve to realize a detachable connection with the main supporting rod and the auxiliary supporting rod, whereby an exchange with a supporting roof No. 1 and a supporting roof No. 2 are different Height is facilitated in order to realize a use in the event that the support height cannot be reached in the height adjustment range, so that the range of use is enlarged.

Detailed embodiment 2:

please refer 4th , The difference between the present detailed embodiment and the first detailed embodiment lies in: that on two mutually opposite vertical surfaces of the supporting roof No. 1 4 a coupling groove 4-1 is provided, with a coupling edge on two mutually opposite vertical surfaces of the support roof No. 2 5 5-1 Is formed in one piece, which fits in the coupling groove 4-1 is inserted, the other structure is the same as the structure of the first detailed embodiment, in the present detailed embodiment are on the horizontal guide shaft 10 on which the main support rod 2 is attached, two auxiliary support rods 3 placed on the front and back of the main support rod 2 are located in that the coupling edge 5-1 fits in the coupling groove 4-1 in the one at the top of the main support pole 2 Support roof located no. 1 4 is inserted, the support roofs No. 2 5 are at the top of the two auxiliary support rods 3 connected in one piece to the horizontal guide shaft 10 in the one with the main support pole 2 connected auxiliary support rod 3 are two auxiliary support poles each 3 placed longitudinally, in that the coupling edge 5-1 fits in the coupling groove 4-1 in the one at the top of the middle auxiliary support rod 3 Support roof located no. 1 4 is inserted, the support roofs No. 2 5 are at the top of the two auxiliary support rods 3 One-piece connected to each other, now the supporting roof No. 1 4 and the supporting roof No. 2 5, which are located at the top, form an integrated supporting roof.

Although the present utility model is explained in more detail in connection with the above embodiments, the person skilled in this field can change the technical solutions in the above embodiments or partially replace the technical features therein, and all changes made under the idea and principle of the present utility model, equivalent substitutions and improvements are to be regarded as covered by the scope of protection of the present utility model.

Claims (7)

Protective bracket with a mesh profile structure for underground tunnel construction, characterized in that it has a universal wheel (1), a main support rod (2), an auxiliary support rod (3), a support roof No. 1 (4), an expansion mechanism (6), a guide rail group (7) and a drive mechanism (8); a universal wheel (1) is attached to the bottom of the main support rod (2) and the auxiliary support rod (3); and wherein the main support rod (2) is formed by a fixed main rod (2-1), a movable main rod (2-2), a support rod screw (2-3), a flat thrust ball bearing (2-4) and a main bearing (2-5) is trained; and wherein the universal wheel (1) located on the lower part of the main support rod (2) is attached to the lower end of the fixed main rod (2-1); and wherein in the fixed main rod (2-1) the support rod screw (2-3) is movably inserted, and wherein the other end of the support rod screw (2-3) is inserted into the main bearing (2-5), and wherein the main bearing ( 2-5) is embedded in the lower end of the movable main rod (2-2), and a driven gear (8-4) in the support rod screw (2-3) located at the upper end of the fixed main rod (2-1) Drive mechanism (8) is attached, and wherein on an inner annular surface of the driven gear (8-4) a thread is provided which is in engagement with the support rod screw (2-3), and wherein a lower annular surface of the driven gear (8- 4) is attached to an upper ring surface of the flat thrust ball bearing (2-4), and wherein a lower ring surface of the flat thrust ball bearing (2-4) is attached to the upper end of the fixed main rod (2-1); and wherein the auxiliary support rod (3) is formed by a fixed auxiliary rod (3-1), a movable auxiliary rod (3-2), a support rod shaft (3-3) and a guide bearing of the support rod (3-4); and wherein a universal wheel (1) located on the lower part of the auxiliary support rod (3) is attached to the lower end of the fixed auxiliary rod (3-1), and wherein in the fixed auxiliary rod (3-1) the support rod shaft (3-3) is fixed by means of the upward - and downward movement of the guide bearing of the support rod (3-4) is inserted, and wherein the upper end of the support rod shaft (3-3) is fixed to the lower end of the auxiliary movable rod (3-2); and a supporting roof No. 1 (4) is attached to the upper end of the main movable rod (2-2) and the upper end of the auxiliary movable rod (3-2); and wherein the expansion mechanism (6) is formed by a threaded sleeve rod (6-1), an expansion screw (6-2), a driven bevel gear (6-3) and a positioning pin (6-4); and wherein one end of the threaded sleeve rod (6-1) is screwed through a bearing at the lower end of the fixed main rod (2-1), and wherein in the threaded sleeve rod (6-1) the expansion screw (6-2) is screwed by thread, and wherein the outer end of the expansion screw (6-2) passes through the other end of the threaded sleeve rod (6-1) and is then attached to the lower end of the fixed auxiliary rod (3-1); and wherein the guide rail group (7) is formed by a guide rail No. 1 (7-1), a guide rail No. 2 (7-2) and a carriage (7-3); and one end of the guide rail No. 1 (7-1) is fixed to a side wall of the main movable rod (2-2), and one end of the guide rail No. 2 (7-2) is fixed by means of the carriage (7-3) is slidably disposed on the guide rail No. 1 (7-1), and the other end of the guide rail No. 2 (7-2) is fixed to a side wall of the auxiliary movable rod (3-2); and wherein the drive mechanism (8) further comprises a drive motor (8-1), a shaft (8-2), a drive gear (8-3), a drive bevel gear (8-5) and a motor mount (8-6); and wherein the drive motor (8-1) is attached to a side wall of the fixed main rod (2-1) by means of the motor bracket (8-6), and wherein the drive motor (8-1) is a bidirectional drive motor, and wherein to an output end of the drive motor, the drive bevel gear (8-5) is connected by means of the shaft (8-2), and wherein the drive bevel gear (8-5) is in engagement with the driven bevel gear (6-3), and the driven The gear wheel 6-3 is adjustably placed on the outer wall of the threaded sleeve rod (6-1) and connected to the threaded sleeve rod (6-1) in a positioning manner by means of the positioning pin (6-4); and wherein the drive gear (8-3) is connected to the other output end of the drive motor (8-1) by means of the shaft (8-2), and wherein the drive gear (8-3) is in mesh with the driven gear (8-4 ) stands; and wherein the drive motor (8-1) is connected to an external power supply. Protective bracket with a mesh profile structure for subway tunnel construction according to Claim 1 , characterized in that at one of the movable main rod (2-2) facing away from the end of the guide rail No. 1 (7-1) a limiting plate (7-4) is attached, the limiting plate (7-4) in movable contact with the Slide (7-3) is arranged. Protective bracket with a mesh profile structure for subway tunnel construction according to Claim 1 , characterized in that a pin shaft (12) is inserted in the lower end of the support roof No. 1 (4), a plurality of secondary support roofs (13) on the pin shaft (12) located at a front and rear position of the support roof No. 1 (4) ) are screwed, and a nut is screwed to each of the pin shafts (12) located on the outside of the front and rear auxiliary support roof (13), and the front and rear nuts are in contact are arranged on the outer side wall of the front and rear auxiliary support roofs (13). Protective bracket with a mesh profile structure for subway tunnel construction according to Claim 1 , characterized in that a polyhedral positioning sleeve (4-2) is placed on the lower end of the supporting roof no. 1 (4), which is movable in one at the top of the movable main rod (2-2) and the movable auxiliary rod (3-2 ) provided polyhedral groove body is embedded. Protective bracket with a mesh profile structure for subway tunnel construction according to Claim 1 , characterized in that a soft ladder (9) is suspended from the bottom of the guide rail no. 1 (7-1). Protective bracket with a mesh profile structure for subway tunnel construction according to Claim 1 , characterized in that a horizontal guide bearing (11) is embedded in each of the fixed main rod (2-1), the movable main rod (2-2), the fixed auxiliary rod (3-1) and the movable auxiliary rod (3-2) , in which a horizontal guide shaft (10) is inserted, and wherein an end plate (10-1) is connected to one end of the horizontal guide shaft (10), and wherein several auxiliary support rods (3) are movably attached to the by means of the horizontal guide bearing (11) horizontal guide shaft (10), and at the tip of the movable auxiliary rods (3-2) in the several auxiliary support rods (3) located behind the main support rod (2) and the auxiliary support rod (3) each have a support roof No. 2 (5) is attached. Protective bracket with a mesh profile structure for subway tunnel construction according to Claim 6 , characterized in that a coupling groove (4-1) is provided on two mutually opposite vertical surfaces of the support roof no. 1 (4), a coupling edge (5-1) being provided on two mutually opposite vertical surfaces of the support roof no. 2 (5) ) is designed in one piece, which is inserted into the coupling groove (4-1) to fit.

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