Movable subway station rail top air duct construction trolley device based on profile steel combination

Abstract

The invention relates to the technical field of movable subway station rail top air duct construction trolley devices, in particular to a movable subway station rail top air duct construction trolley device based on profile steel combination. The top of the transmission lead screw is inserted into the bottom of a lead screw motor arranged on the periphery of the top surface of the main construction platform, the transmission lead screw is slidably connected with the inner side of a secondary construction platform, and a telescopic platform is arranged at the bottom of the outer side of the secondary construction platform. The movable subway station rail top air duct construction trolley device based on profile steel combination has the beneficial effects that when a subway station rail top air duct is constructed, the driving motor drives the rail wheels at the bottom of the movable base to rotate, so that the rail wheels pass through a subway rail; the main construction platform on the top of the stand column supported by the top of the vertical jack and the secondary construction platforms on the two sides of the stand column are driven to move synchronously.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile subway station rail top air duct construction trolley device, in particular to a type steel combined mobile subway station rail top air duct construction trolley device. BACKGROUND

[0002] The rail top air duct of the subway station is an important part of the ventilation system of the subway station, and its construction quality directly affects the ventilation effect and safe operation of the subway station.

[0003] In the prior art, rail top air duct construction is generally divided into two types: one is synchronous pouring with the middle plate, and the other is reserved with reinforcing bars, and then secondary construction is carried out after the completion of shield construction. However, most of the stations are due to the conflict between the shield machine trolley elevation and the rail top air duct elevation as the starting station of the shield section, resulting in the need for secondary construction of the rail top air duct. However, at this time, the rail top air duct needs to be constructed by setting up an independent scaffold, which is low in work efficiency, has few times of formwork turnover, and needs to be removed and re-set up for the next construction, which is slow in construction speed and cannot meet the tight schedule and heavy task of subway construction. Moreover, the long construction period of the rail top air duct often leads to the failure of the track laying unit to enter the site in time for construction. SUMMARY

[0004] The present application aims to provide a type steel combined mobile subway station rail top air duct construction trolley device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a mobile base, vertical jacks are arranged on both sides of the top surface of the mobile base, the top of the vertical jacks supports a stand column, and the top of the stand column is welded with a main construction platform; the stand column is provided with a lifting groove in the middle, a transmission screw rod is arranged in the lifting groove, the top of the transmission screw rod is inserted into the bottom of a screw rod motor arranged around the top surface of the main construction platform, the inner side of a secondary construction platform is slidably connected to the transmission screw rod, and an extension platform is arranged at the bottom of the outer side of the secondary construction platform.

[0006] Preferably, the mobile base is provided with two groups, and a plurality of track wheels are arranged on the bottom of the two groups of mobile bases, and the direct distance between the track wheels on the bottom of the two groups of mobile bases is the same as the distance between the subway tracks.

[0007] Preferably, inclined struts are welded on both sides of the bottom of the main construction platform, the other end of the inclined struts is welded to the bottom end of the stand column, a main protective fence is welded around the top of the main construction platform, and the main protective fence surrounds the top of the main construction platform.

[0008] Preferably, the middle part of the bottom of the secondary construction platform is fixedly provided with a translation air cylinder, the translation air cylinder is arranged at the inner side of the secondary construction platform, the outer end of the telescopic rod of the translation air cylinder is connected with a connecting block arranged at the middle part of the bottom of the secondary construction platform, and the translation air cylinder can push the telescopic platform to move horizontally on the bottom of the secondary construction platform through the connecting block.

[0009] Preferably, the two sides of the top of the secondary construction platform are provided with a first secondary protective fence, the outer end of the telescopic platform is provided with a second secondary protective fence, the second secondary protective fence is arranged at the top of the outer side of the telescopic platform, and the first secondary protective fence and the second secondary protective fence form a protective fence of the secondary construction platform.

[0010] Preferably, the middle part of the first secondary protective fence is provided with a telescopic slot, the two ends of the second secondary protective fence are provided with a plurality of telescopic columns arranged at the inner side, the telescopic columns are parallel to the telescopic slot, and the telescopic columns are inserted into the telescopic slot.

[0011] Preferably, the bottom of the outer side of the telescopic platform is hingedly connected with a hinge shaft, the hinge shaft is connected with a movable inclined support, the bottom of the movable inclined support is inserted with a telescopic inclined support, and the movable inclined support and the telescopic inclined support can swing through the hinge shaft.

[0012] Preferably, the bottom of the movable inclined support is provided with a through hole, a plurality of through holes are simultaneously arranged on the telescopic inclined support, a fixing bolt is inserted into the telescopic inclined support coinciding with the movable inclined support, and the telescopic fixing of the through hole can be realized.

[0013] Preferably, the two outer sides of the bottom of the secondary construction platform are welded with movable inclined supports, the outer side of the stand column is provided with an extension plate, the outer side of the stand column and the extension plate are provided with a roller way, and the other end of the movable inclined support is provided with a roller.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The application provides a type steel combined movable subway station rail top air duct construction trolley device, when the subway station rail top air duct is constructed, a driving motor drives rail wheels at the bottom of a movable base to rotate, the rail wheels pass through subway rails, drive a main construction platform at the top of a column supported by a vertical jack and a secondary construction platform at the two sides of the column to move synchronously, the main construction platform and the secondary construction platform are moved to a construction site, then the vertical jack lifts the column, the whole device is synchronously lifted, personnel at the top of the main construction platform can reach the top of the tunnel, air duct construction is carried out, further, a main protective fence around the top of the main construction platform can protect the construction personnel and prevent the construction personnel from falling, an inclined brace welded to the bottom of the main construction platform and the column inclines the main construction platform and reinforces the stability of the main construction platform, when the two sides of the rail need to be constructed, a lead screw motor around the top of the main construction platform can drive a transmission lead screw to rotate, a secondary construction platform connected to the transmission lead screw is lifted to a predetermined construction height on the two sides of the rail, further, a movable inclined brace welded to the two sides of the outside of the bottom of the secondary construction platform inclines the secondary construction platform and reinforces the stability of the secondary construction platform, when the secondary construction platform is lifted or lowered, rollers arranged at the bottom of the movable inclined brace slide in a roller track arranged at the outside of the column, the friction between the movable inclined brace and the column is reduced, when the secondary construction platform reaches the appropriate height, a translation cylinder arranged at the middle of the bottom of the secondary construction platform pushes a connecting block through a telescopic rod, the connecting block drives a telescopic platform to move horizontally to the outside of the secondary construction platform, the secondary construction platform is extended, at this time, telescopic columns arranged at the two ends of the inside of a second secondary protective fence extend in a first secondary protective fence, so that the first secondary protective fence, the second secondary protective fence telescopic column and the first secondary protective fence always form a fence, preventing the construction personnel on the secondary construction platform or the telescopic platform from falling. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the application;

[0017] Figure 2 It is a sectional structure schematic diagram of the application;

[0018] Figure 3 It is a three-dimensional structure schematic diagram of the secondary construction platform and the telescopic platform of the application;

[0019] Figure 4 It is a bottom view structure schematic diagram of the secondary construction platform and the telescopic platform of the application;

[0020] Figure 5 It is a sectional structure schematic diagram of the secondary construction platform and the telescopic platform of the application.

[0021] In the figure: mobile base 1, track wheel 2, vertical jack 3, stand 4, main construction platform 5, inclined brace 6, main protective fence 7, lifting groove 8, transmission screw rod 9, screw rod motor 10, extension plate 11, roller way 12, secondary construction platform 13, telescopic platform 14, translation cylinder 15, connecting block 16, first secondary protective fence 17, second secondary protective fence 18, telescopic column 19, telescopic groove 20, hinged shaft 21, movable inclined brace 22, telescopic inclined brace 23, through hole 24, fixing bolt 25, movable inclined brace 26, extension block 27, plug-in groove 28, roller 29. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme of the present application clear, complete description, and the advantages are more clear and obvious, the following will be further described in detail with the help of the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, only to explain the embodiments of the present application, and not for the purpose of limiting the embodiments of the present application, all other embodiments obtained by the ordinary skill in the art without doing creative work, belong to the scope of protection of the present application.

[0023] Please refer to Figures 1 to 5 The present application provides a technical scheme: mobile base 1, the top surface of the mobile base 1 is provided with vertical jack 3 on both sides, the top of the vertical jack 3 supports the stand 4, and the top of the stand 4 is welded with the main construction platform 5; the stand 4 is provided with lifting groove 8 in the middle, the transmission screw rod 9 is arranged in the lifting groove 8, the top of the transmission screw rod 9 is inserted into the bottom of the screw rod motor 10 arranged around the top surface of the main construction platform 5, the inner side of the transmission screw rod 9 is slidably connected with the secondary construction platform 13, and the outer side of the secondary construction platform 13 is provided with the telescopic platform 14; the translation cylinder 15 arranged in the middle of the bottom of the secondary construction platform 13 drives the connecting block 16 through the telescopic rod, so that the connecting block 16 drives the telescopic platform 14 to move horizontally to the outside of the secondary construction platform 13, and the secondary construction platform 13 is extended.

[0024] The mobile base 1 is provided with two groups, and the bottom of the two groups of mobile base 1 is provided with multiple groups of track wheels 2, the direct distance between the track wheels 2 at the bottom of the two groups of mobile base 1 is the same as the distance between the subway tracks; the two sides of the bottom of the main construction platform 5 are welded with inclined braces 6, the other end of the inclined braces 6 is welded at the bottom end of the stand 4, the top of the main construction platform 5 is welded with the main protective fence 7 around, and the main protective fence 7 surrounds the top of the main construction platform 5 around; the main protective fence 7 around the top of the main construction platform 5 can protect the construction personnel, prevent the construction personnel from falling, and the inclined brace 6 directly welded between the bottom of the main construction platform 5 and the stand 4 can be inclined to the main construction platform 5, and can reinforce the stability of the main construction platform 5.

[0025] The middle part of the bottom of the secondary construction platform 13 is fixedly provided with a translation air cylinder 15, which is arranged on the inner side of the secondary construction platform 13, and the outer end of the telescopic rod of the translation air cylinder 15 is connected to a connecting block 16 arranged on the middle part of the bottom of the secondary construction platform 13. The translation air cylinder 15 can push the telescopic platform 14 to move horizontally on the bottom of the secondary construction platform 13 through the connecting block 16. The top of the secondary construction platform 13 is provided with a first secondary protective fence 17 on both sides, and the outer end of the telescopic platform 14 is provided with a second secondary protective fence 18 arranged on the top of the outer side of the telescopic platform 14. The first secondary protective fence 17 and the second secondary protective fence 18 form a secondary construction platform fence. The connecting block 16 drives the telescopic platform 14 to move horizontally to the outer side of the secondary construction platform 13 to extend the secondary construction platform 13. At this time, the telescopic columns 19 arranged on both ends of the inner side of the second secondary protective fence 18 are telescoped in the first secondary protective fence 17, so that the first secondary protective fence 17, the second secondary protective fence 18, and the telescopic column 19 always form a fence to prevent the construction personnel on the secondary construction platform 13 or the telescopic platform 14 from falling.

[0026] The middle part of the first secondary protective fence 17 is provided with a telescopic slot 20, and the inner side of both ends of the second secondary protective fence 18 is provided with a plurality of telescopic columns 19. The telescopic columns 19 are parallel to the telescopic slot 20 and are inserted into the telescopic slot 20. The outer side of the telescopic platform 14 is hingedly connected with a hinge shaft 21, and the hinge shaft 21 is connected with a movable inclined brace 22. The bottom of the movable inclined brace 22 is inserted with a telescopic inclined brace 23. The movable inclined brace 22 and the telescopic inclined brace 23 can swing through the hinge shaft 21. The bottom of the movable inclined brace 22 is provided with a through hole 24, and the telescopic inclined brace 23 is also provided with a plurality of through holes 24. A fixing bolt 25 is inserted into the telescopic inclined brace 23 coinciding with the movable inclined brace 22 to fix the telescopic through hole 24. The hinge shaft 21 swings the movable inclined brace 22 and the telescopic inclined brace 23, and the bottom end of the telescopic inclined brace 23 is inserted into an insertion slot 28 arranged in the middle part of the outer side of an extension block 27. Then, the fixing bolt 25 is inserted into the through hole 24 coinciding with the movable inclined brace 22 and the telescopic inclined brace 23 to fix the telescopic telescopic inclined brace 23. At this time, the movable inclined brace 22 and the telescopic inclined brace 23 incline the telescopic platform 14.

[0027] The outer side of both ends of the bottom of the secondary construction platform 13 is welded with a movable inclined brace 26, the outer side of the stand column 4 is provided with an extension plate 11, and the outer side of the stand column 4 and the extension plate 11 are provided with a roller way 12. The other end of the movable inclined brace 26 is provided with a roller 29, which is inserted into the roller way 12. When the secondary construction platform 13 rises or falls, the roller 29 arranged at the bottom end of the movable inclined brace 26 slides in the roller way 12 arranged on the outer side of the stand column 4 to reduce the friction between the movable inclined brace 26 and the stand column 4.

[0028] In actual use, when the track-top air duct of the subway station is under construction, the driving motor drives the track wheels 2 at the bottom of the moving base 1 to rotate, so that the track wheels 2 pass through the subway track, drive the main construction platform 5 at the top of the vertical jack 3 and the secondary construction platform 13 at the two sides of the vertical jack 3 to move synchronously, and the main construction platform 5 and the secondary construction platform 13 are moved to the construction site. Then the vertical jack 3 lifts the vertical jack 4, so that the whole device rises synchronously, and the personnel at the top of the main construction platform 5 can reach the top of the tunnel at the highest position to carry out the air duct construction. Further, the main protection fence 7 around the top of the main construction platform 5 can protect the construction personnel from falling, and the inclined brace 6 directly welded to the bottom of the main construction platform 5 can brace the main construction platform 5 to reinforce the stability of the main construction platform 5. When the construction is needed on both sides of the track, the lead screw motor 10 at the top of the main construction platform 5 can drive the transmission lead screw 9 to rotate, so that the secondary construction platform 13 connected to the transmission lead screw 9 slides upward, and the secondary construction platform 13 is lifted to the predetermined construction height on both sides of the track. Further, the moving inclined brace 26 welded to the outside of the bottom of the secondary construction platform 13 can brace the secondary construction platform 13 to reinforce the stability of the secondary construction platform 13. When the secondary construction platform 13 rises or falls, the rollers 29 at the bottom end of the moving inclined brace 26 slide in the roller way 12 arranged outside the vertical column 4, so as to reduce the friction between the moving inclined brace 26 and the vertical column 4. When the secondary construction platform 13 reaches the appropriate height, the translation cylinder 15 arranged at the middle of the bottom of the secondary construction platform 13 can drive the connecting block 16 through the extension rod, so that the connecting block 16 drives the extension platform 14 to move horizontally to the outside of the secondary construction platform 13, and the secondary construction platform 13 is extended. At this time, the extension column 19 arranged at the inside of both ends of the second secondary protection fence 18 extends in the first secondary protection fence 17, so that the first secondary protection fence 17, the second secondary protection fence 18, the extension column 19 always form a fence to prevent the construction personnel on the secondary construction platform 13 or the extension platform 14 from falling. Further, the extension block 27 is arranged at the inside of the bottom end of the moving inclined brace 26, and the insertion slot 28 is arranged at the middle of the outside of the extension block 27. When the extension platform 14 needs to bear heavy objects, the movable inclined brace 22 and the extension inclined brace 23 are swung through the hinged shaft 21, and the bottom end of the extension inclined brace 23 is inserted into the insertion slot 28 arranged at the middle of the outside of the extension block 27. Then the fixed bolt 25 is inserted into the through hole 24 where the movable inclined brace 22 and the extension inclined brace 23 coincide, so that the extension of the extension inclined brace 23 is fixed. At this time, the movable inclined brace 22 and the extension inclined brace 23 brace the extension platform 14 to prevent the extension platform 14 from being deformed by the heavy objects.

[0029] While the forgoing detailed description of the application has shown specific embodiments of the application, it is to be understood that changes and modifications can be made to the specific embodiments without departing from the spirit and scope of the application as defined by the claims set forth below.

Claims

1. A movable subway station rail-top air duct construction trolley device based on steel sections, characterized by: include: A mobile base (1), vertical jacks (3) are provided on both sides of the top surface of the mobile base (1), the tops of the vertical jacks (3) support columns (4), and the tops of the columns (4) are welded with a main construction platform (5); The column (4) is provided with a lifting groove (8) in the middle of the column (4), a transmission screw (9) is provided in the lifting groove (8), the top of the transmission screw (9) is plugged into the bottom of a screw motor (10) provided around the top surface of the main construction platform (5), the transmission screw (9) is slidably connected to the inner side of the secondary construction platform (13), and a telescopic platform (14) is provided at the outer bottom of the secondary construction platform (13).

2. The steel-based movable subway station rail-top air duct construction trolley device according to claim 1 is characterized by: The mobile base (1) is provided with two groups, and multiple groups of track wheels (2) are provided at the bottom of the two groups of mobile bases (1). The distance between the track wheels (2) at the bottom of the two groups of mobile bases (1) is the same as the distance between subway tracks.

3. The movable subway station rail-top air duct construction trolley device based on steel structure combination according to claim 2 is characterized by: Diagonal braces (6) are welded on both sides of the bottom of the main construction platform (5), and the other ends of the diagonal braces (6) are welded to the bottom ends of the columns (4). Main protective fences (7) are welded around the top of the main construction platform (5), and the main protective fences (7) surround the top of the main construction platform (5).

4. The movable subway station rail-top air duct construction trolley device based on steel structure combination according to claim 3 is characterized by: A translation cylinder (15) is fixedly provided in the middle of the bottom of the secondary construction platform (13). The translation cylinder (15) is provided on the inner side of the secondary construction platform (13). The outer end of the telescopic rod of the translation cylinder (15) is connected to a connecting block (16) provided in the middle of the bottom of the secondary construction platform (13). The translation cylinder (15) can push the telescopic platform (14) to move horizontally at the bottom of the secondary construction platform (13) through the connecting block (16).

5. The steel-based movable subway station rail-top air duct construction trolley device according to claim 4 is characterized by: A first secondary protection fence (17) is provided on both sides of the top of the secondary construction platform (13), a second secondary protection fence (18) is provided at the outer end of the telescopic platform (14), and the second secondary protection fence (18) is provided at the top of the outer side of the telescopic platform (14). The first secondary protection fence (17) and the second secondary protection fence (18) form a secondary construction platform guardrail.

6. The movable steel-based subway station rail-top air duct construction trolley device according to claim 5, characterized in that: A telescopic slot (20) is provided in the middle of the first secondary protective fence (17), and multiple groups of telescopic columns (19) are provided on the inner sides of both ends of the second secondary protective fence (18). The telescopic columns (19) are parallel to the telescopic slot (20) and are inserted into the telescopic slot (20).

7. The movable subway station rail-top air duct construction trolley device based on steel sections according to claim 6 is characterized by: The bottom of the outer side of the telescopic platform (14) is hinged with a hinge shaft (21), a movable diagonal brace (22) is connected to the hinge shaft (21), a telescopic diagonal brace (23) is inserted into the bottom of the movable diagonal brace (22), and the movable diagonal brace (22) and the telescopic diagonal brace (23) can swing through the hinge shaft (21).

8. The steel-based movable subway station rail-top air duct construction trolley device according to claim 7, characterized in that: The bottom of the movable diagonal brace (22) is provided with a through hole (24), and the telescopic diagonal brace (23) is provided with multiple groups of through holes (24). A fixing bolt (25) is inserted into the telescopic diagonal brace (23) where the movable diagonal brace (22) and the telescopic diagonal brace (23) overlap, so that the through holes (24) can be fixed in telescopic manner.

9. The steel-based movable subway station rail-top air duct construction trolley device according to claim 8, characterized in that: The outer sides of both ends of the bottom of the secondary construction platform (13) are welded with movable diagonal braces (26); the outer bottom of the column (4) is provided with an extension plate (11); the outer side of the column (4) and the extension plate (11) are provided with a roller track (12); the other end of the movable diagonal brace (26) is provided with a roller (29), and the roller (29) is inserted into the roller track (12).

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